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March 25, 2024
How to produce qualified Isuzu oil tank truck?
Isuzu oil tank truck is a vehicle specially used to transport various types of flammable and explosive oils, chemicals and other dangerous goods. Isuzu oil tank truck needs to pay special attention to safety when transporting dangerous goods to prevent dangerous incidents from occurring.
The quality of Isuzu oil tank truck is directly related to the safe transportation and use of oil products, so how to produce qualified Isuzu oil tank truck has become a very important topic. The following will introduce how to produce a qualified Isuzu oil tank truck from five aspects.
Isuzu oil tank truck features:
1.Tank material : 4-6mm thick carbon steel with high quality .
carbon steel and stainless steel or aluminum alloy can be choose.
2.Tank shape: square-round, oval, round;
3. Pump : can be choose self-priming pump, gear pump or double pump;
the pump can help the oil pump in and out or self-flow.
4.Special design: can be designed to an independent sub-warehouse to transport different oil with the same time.
15 meters refueling reel (can automatically return to position),
the tank is equipped with many anti-wave boards to keep the tank with high strength, stable center of gravity,
delivery safety and other characteristics in the transportation.
Isuzu fuel truck also known as oil tank truck,fuel tank truck, fuel dispenser truck ,mobile refueling truck, oil transport vehicle,mobile catering truck,mobile refueling truck, oil tanker, oil loading truck, fuel bowser truck,oil tanker, fuel tank truck, oil bowser, fuel oil tanker,oil delivery truck, petroleum service truck, fuel oil storage tank, fuel tanker lorry, refueling tanker truck, crude oil truck,mainly used for the transportation and storage of petroleum derivatives (gasoline, diesel, crude oil, lubricating oil, coal tar and other oils).
TECHNICAL SPECIFICATION
Main specification
Chassis brand
ISUZU
Chassis model
QL1160VMFRY
Overall dimension(L*W*H)
7500x2500x3500mm
Axle No.
2
Drive modle
4x2, left hand drive
Wheel Base
4500mm
Front Axle loading capacity
6300kg
Rear Axle loading capacity
13000kg
Maximum speed
95km/h
Tyre size
1000R20, with one spare tyre
Tyre number
6+1 nos
Fuel/Engine type:
Diesel,Vertical in-line, water-cooled, six stroke
Engine horse power
205hp
Engine emission standard
EURO 5
TANKER PARAMETERS
Tank volume
12,000L
Compartments
1 compartment
Tank thickness
5mm body/ endplate 6mm
Material of tanker
Q235B carbon steel 5mm, epoxy paint 3 layer inner surface
Standard configuration
Discharge valve ,1pc each compartment
EURO standard manhole with feeding inlet and bulit-in pressure relief valve , 1pc each compartment
Oil pump
Emergency cutoff device
bottom valve (safety valve ),1pc each compartment
Other fittings
Ladder for climbing
Walkway, anti-skid
Handrail, anti-skid
Hose carriers: 2pcs at each side
Fire extinguisher: 2Nos, carrier hold
Earthing reel, side bumper, 1 set
Transport medium
Diesel oil, gasoline or others
1. Design stage
To produce a qualified Isuzu oil tank truck, design is crucial. The design should take into account the safety, stability and transportation efficiency of the Isuzu oil tank truck. The size, shape, load capacity, material selection and other factors of the vehicle. The design of the tank should take into account the density, corrosiveness, flammability and other factors of the liquid to ensure safe transportation. In addition, the design also needs to take into account the ease of use, maintenance and comfort of the Isuzu oil tank truck.
2. Material selection
Material selection is critical to the quality and service life of Isuzu refueling trucks. For the tank body, materials that are corrosion-resistant, high-pressure resistant, and wear-resistant should be selected, such as stainless steel or aluminum alloy. High-strength, corrosion-resistant, and wear-resistant materials should be selected for the chassis and other structural parts to ensure the stability and durability of the vehicle.
3. Manufacturing stage
During the manufacturing process, relevant manufacturing standards and quality control procedures should be strictly followed. The first is the welding process. The welding requirements are strict and the weld quality is good to ensure the sealing of the Isuzu mobile fuel truck. The second step is the appearance processing, which requires the car body to be beautiful and smooth to ensure the balance and stability of the car body. At the same time, quality supervision should be strengthened during the manufacturing process to ensure that every link meets standard requirements.
4. Testing phase
After the manufacturing is completed, the Isuzu diesel transfer truck should be fully tested and inspected. Including testing on welding, appearance, sealing and other aspects to ensure that each Isuzu diesel transfer truck meets relevant standards and requirements. This includes pressure testing, tightness testing, vibration testing, etc. During the test, it should be ensured that the Isuzu diesel transfer truck can withstand the predetermined pressure and temperature without leakage or other problems.
5. Certification and Licensing
Isuzu refueling truck needs to go through relevant certification and licensing procedures. This includes vehicle safety certification, environmental certification, fire certification, etc. Only certified and licensed tank trucks are considered qualified Isuzu refueling trucks and can safely transport petroleum products on the road.
In general, producing a qualified Isuzu oil tank truck requires considering many aspects such as design, materials, manufacturing, testing and certification. Only by strictly complying with relevant standards and procedures can the quality and safety of Isuzu oil tank trucks be ensured.
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March 20, 2024
How to produce good Isuzu truck mounted crane?
Isuzu truck mounted crane is a vehicle that realizes the lifting and rotation of goods through hydraulic telescopicity. The main function of Isuzu truck mounted crane is to hoist and carry goods. It is widely used in engineering construction, port terminals, logistics and warehousing and other fields.This article will introduce in detail the function and production process of Isuzu truck mounted crane.
Isuzu truck mounted crane ,also called boom truck crane,mobile truck crane , telescopic straight boom crane,truck with crane , crane lorry,hydraulic arm crane for trucks,pickup truck mounted crane,light truck with crane,hydraulic crane telescopic boom,self loader truck with boom crane, new forland lorry truck mounted crane,telescopic boom truck mounted crane,etc.
Chassis
ISUZU
Cab
A row and a half deluxe cab(with sleeping berth),allowable 3 passengers
Wheelbase
1850+4575+1370mm
Steering
Power steering
Wheels & tire
295/80R22.5
Tire number
12+1
Cargo Dimensions(mm)
7000x2300x600 mm
Engine
Model
ISUZU 6WG1-TCG61
Horsepower
460 hp
Type
6 cylinders, in-line,4-stroke,water-cooled,turbo inter-cooling, diesel engine
Transmission
8 speed forward and one reverse, manual
Front Axle
7Tx2
Rear Axle
13Tx2
Brake System
air brake ,exhaust brake
Color and LOGO
customized
Electric system
24V
crane
Max loading
16tons
Max lifting height
20m
Max working radius
19m
Type
Straight Arm
Arms number
4 sections
Turning angle
360 degree
Standard configuration
truck crane equipped between the cabin and van body, mechanical leg
Optional configuration
Any other famous brand crane, it can also be equipped in the rear of the truck, hydraulic legs, aerial working seat is optional.
The chassis girder of Isuzu telescopic crane truck is closely related to the crane. Before choosing, you must first determine the required crane tonnage and choose the appropriate chassis. The larger the tonnage, the heavier the chassis weight is, and the thicker the girder and the larger the chassis. A crane with a small tonnage is equipped with a small chassis, which is prone to beam breakage and rollover. A crane with a small tonnage is equipped with a large chassis, and the lifting capacity of the crane cannot be fully utilized.
1. Reasonable design structure
A good Isuzu telescopic crane truck requires a reasonable structure design, including main component materials, load-bearing capacity, key component selection, etc.
1). The main components of Isuzu telescopic crane truck should be made of high-quality materials, such as high-strength steel, to ensure that no safety hazards such as breakage will occur during the hoisting process.
2). The load-bearing capacity and stability of Isuzu telescopic crane truck are also very important. The structural dimensions and connection methods of each component must be reasonably designed according to the lifting requirements to ensure safe and reliable lifting operations.
3). Key components such as wire ropes and lifting mechanisms must also be selected with reliable quality and stable performance to avoid complete machine failure due to component quality issues.
2. Processing and manufacturing stage
After the material procurement is completed, the production process of Isuzu hydraulic crane truck enters the processing and manufacturing stage. This stage involves parts processing, welding, assembly and other processes. Specifically, it includes a series of processes such as steel cutting, plate bending, and welded joint strength testing. During the processing and manufacturing process, workers need to strictly follow the product design drawings and process flow to ensure that the product size is accurate and the connections are firm, so as to avoid unqualified product quality due to process problems.
3. Strict quality inspection
The produced Isuzu mobile truck crane needs to undergo strict quality inspection to ensure that the product meets the standard requirements. Quality inspection includes raw material inspection, intermediate process inspection and finished product inspection.
Inspect raw material requirements to ensure reliable raw material quality; intermediate process inspections must be carried out regularly during the production process, and problems should be rectified in a timely manner; finished product inspections must conduct comprehensive inspections on each Isuzu mobile truck crane, including performance testing, safety inspections, Wear resistance evaluation, etc., to ensure product quality is intact and meets user needs.
In short, the production process of Isuzu truck mounted crane includes design, materials, manufacturing, quality inspection and other links. Each link is closely coordinated and strictly controlled to ensure product quality and customer experience.
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March 15, 2024
How to produce Isuzu Refuse compactor truck?
Isuzu refuse compactor truck is mainly used for collecting, transporting and compressing municipal solid waste and construction waste. Compression can reduce the volume of garbage and increase the loading capacity, thus reducing the number of transportation times and transportation costs. Isuzu refuse compactor truck has the advantages of high pressure, good sealing, easy operation and safety. It plays an important role in improving urban environmental sanitation and resource recycling.
So how to make a good Isuzu refuse compactor truck? Producing a good Isuzu refuse compactor truck requires considering many factors, including material selection, design, manufacturing process, etc. The following will introduce in detail how to produce a good Isuzu refuse compactor truck from these aspects.
1. Details of ISUZU refuse compactor truck
(1) Functions:
Isuzu garbage compactor (also called waste compactor truck, garbage compactor truck, trash compactor, refuse collection truck, compactor garbage truck,rubbish truck, bin wagon, dustcart, bin lorry, waste collection vehicle) is designed to collect and transport municipal solid waste.
Isuzu garbage compactor is composed of hermitical garbage box, hydraulic system and operating system, which could apply pressure to the waste to break down bulky items, to load and transport more garbage by one time. Dirty liquid flows into waste sink, perfectly preventing repollution. When arriving at destination, the garbage can be dumped completely. It is ideal solution for solid waste collection.
(2) Production process:
a. The materials used in the Isuzu refuse compactor truck body and compression system should be pressure-resistant, wear-resistant, and corrosion-resistant. For example, the body is made of high-strength steel or fiber-reinforced plastic to increase its strength and durability. The compression system uses high-strength alloy materials or special steel to improve the pressure resistance of the compression system.
b. Isuzu waste compactor truck will select the appropriate process and equipment based on the design requirements to ensure the manufacturing quality of Isuzu waste compactor truck. Details determine success or failure. Isuzu waste compactor truck pays attention to every production link and conducts strict quality control and testing. Isuzu waste compactor truck uses advanced welding technology during the body welding process to ensure strong welds and good sealing. During the assembly process of the compression system, strict debugging and testing are carried out to ensure the normal operation of the compression system.
c. Final assembly is the last step in the production of Isuzu rear loader truck, which mainly includes the installation of cabin lifting devices, debugging and testing of vehicle electronic systems and other processes. The specific process flow is as follows:
a. Car lifting device installation: Depending on the vehicle type, the corresponding lifting device is installed on the Isuzu rear loader truck and debugged and tested.
b. Vehicle electronic system debugging and testing: Carry out debugging and testing according to the electronic system supporting the vehicle to ensure the normal operation of the electronic system.
2.Technical data of ISUZU 3m3 4m4 5m3 refuse compactor truck
ISUZU 4x2 98hp 5cbm compressor garbage truck parameters for reference
Chassis
Chassis model number
ISUZU 100P chassis(QL1040A6HAY)
Cabin
Brand: ISUZU
100P single cabin, 4x2 left hand drive
2 seats, with air conditioner, USB connector radio
Vehicle Main Dimensions
Overall dimensions (L x W x H) mm: 6190*1880*2320 mm
Wheel base: 3360 (mm)
Overhang (front/rear): 1015/1525 (mm)
Approach angle: 24°
Departure angle: 16°
Weight in KGS
Curb Weight:4210 kg
Payload:3-5tons
Max. driving speed(km/h)
90
Engine
Brand
ISUZU
Model
4KH1 , EURO 5
Emission
2771 ml
Type
4-stroke direct injection,4-cylinder in-line with water cooling, turbo-charging and inter-cooling
Horse Power(HP)
98HP
Gearbox
ISUZU MSB, 5 Forwards gear & 1 reverse gear
Tire
700R16, 6 pcs+1 spare tire
Axle
Front axles 2~2.5t, rear axle 3~4.8t
Garbage box parameters
Volume
5 m3
Material
Carbon steel and high tensile steel
Standard equipment
1. Dustbin volume: 5m³
2. hydraulic control device
(1) More than 15 years professional manufacturer experience.
(3) Be designed according to your requirements
(4) Small order can be accepted
(5) We accept 100% inspection, welcome to our factory at any time
(6) 12 month quality guarantee term
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March 14, 2024
How to choose vacuum pump for isuzu vacuum tanker truck?
Isuzu sewage vacuum suction truck ,also named as isuzu sewage tanker truck, isuzu sewage pump truck, isuzu septic suction truck. It is a special cleaning equipment specially used to clean sewage, sludge and solid waste. Isuzu sewage vacuum suction truck uses a vacuum pump to extract the air inside the tank, thereby forming a negative pressure environment and removing sewage and sludge. Wait until it is sucked into the tank and transported to a designated location for processing. This article will introduce in detail the advantages of Isuzu sewage vacuum suction truck.
Common vacuum pumps used in sewage suction trucks include: Battioni Pagani/Moro/Jurop Brand
Isuzu sewage vacuum suction truck Product Description:
1. Description of ISUZU 10,000 Liter Sewage Vacuum Suction Truck For City Sewage Cleaning
Function:
(1) Vacuum sewage suction truck (also called truck mounted sewage cleaner,vacuum cleaner truck ,vacuum suction truck ,vacuum suction tanker ,vacuum waste collection truck ,sewage suction truck,sewage vacuum truck ,waste vacuum truck ,sewer truck ,cesspit emptier ,gully emptier,etc.) is used to collect, transport and discharge liquid such as dirty water,sludge,septic,crude oil and solid stuff such as small stones,bricks as well.It is suitable for cleaning the sewer,cesspit,gully ,etc. It is widely used in environment and sanitation field.
(2)Accessory of sewage suction function :Equipped with PTO, transmission shaft, vacuum suction sewage pump, high pressure molding tank, moisture separator, gas-oil separation, multiple directional control valve, hanger rod, self-discharging valve, suck fecal gun and pipe network system.
(3) Vacuum tank capacity ranges from 3,000 Liters to 20,000 liters
Features:
a.Cylinder vacuum tank can be lifted hydraulically to 40-45 degree.Rear door can be opened and closed hydraulically.
b.Adopt Moro vacuum pump (Italy brand) or equivalent China top brand double vacuum pumps,super powerful,highly efficient.
c.Pump can be operated by a hydraulic motor or by an auxiliary engine.
d.Overfill system with music horn is equipped ,preventing the vacuum pump damage from sewage water into vacuum pump when the tank is full.
e.Nice shape ,rational structure,durable and long service life.
2.Technical of ISUZU 10,000 Liter Sewage Vacuum Suction Truck For City Sewage Cleaning
Complete Vehicle Parameter
Vehicle
ISUZU vacuum sewage truck
Overall dimension (mm)
7850×2470×3200
Sewage tank (m3)
10
Gross vehicle weight (kg)
Appro×18000
Curb weight (kg)
Appro×8048
Payload (kg)
Appro×9757
Wheel base (mm)
4500
Max speed (km/h)
95
Chassis Parameter
Cabin
Flat top cabin,a sleeper,power steering, air conditioner, 3 passengers,left hand drive
Drive form
4×2
Engine
Brand: ISUZU
Model: 4HK1-TC50, 205hp
Type: diesel, turbocharged, 6 cylinder.
Displacement: 5193ml
Emission standard: Euro 5
Gearbox
Isuzu MLD, 6 forward,1 reverse, manual operated
Tire model
1000R20
No.of tires
6pcs, with 1pc spare tire
Superstructure Parameter
Characteristic
1. Sewage tank volume 10000 liter.
2. Sewage tank material is carbon steel,thickness 6mm.
3. Sewage suction pipe 1pcs, length 7m.
4. Hydraulic lifting sewage tank,rear cover can open.
5. Equipped with PTO.
6. Equipped with vacuum pump.
7. Equipped with oil water separator, overflow valve,looking sewage window, self flow exit,hand washing device.
Performance
(1) Vertical suction ≥ 7m.
(2) Pumping speed : 45L/s.
(3) Intake and exhaust diameter: 50mm.
(4) Full tank pumping time ≤ 5min.
(5) Sewage tank emptying time ≤ 4min.
3.Vacuum sewage suction truck workshop
4. Transport to port
Isuzu sewage vacuum suction truck is widely used in urban sanitation, industrial sewage treatment, construction site cleaning and other fields. It plays an important role in cleaning sewage, clearing pipelines, cleaning sludge and other tasks. The Isuzu sewage vacuum suction truck is highly praised by users for its efficient cleaning, easy operation and flexible movement, and has become an indispensable product in the current cleaning equipment market.
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March 12, 2024
Common malfunctions and solutions for Fire Pump of the Isuzu Fire Truck
Fire pump refers to a special pump installed on fire trucks, fixed fire extinguishing systems or other fire fighting facilities and used to transport liquid fire extinguishing agents such as water or foam solution. It is well known that the core component of the Isuzu fire truck is the fire pump. However, once the fire pump fails, it will not be able to provide the fire truck with the water pressure and water volume required to extinguish the fire, and it will not be possible to carry out fire extinguishing and rescue operations at the best time. It will cause some unnecessary losses, so when the fire pump fails, it must be solved in time. So what are the common failures of fire pumps? How should we deal with these failures?
The main working principle of Isuzu fire truck fire pump
Fire pumps for fire trucks mainly use centrifugal water pumps. The working principle is that before starting the centrifugal pump, the pump casing and water suction pipe should be filled with the liquid to be transported. When the prime mover drives the pump shaft to rotate, it drives the impeller and water to rotate at high speed. At this time, the water is accelerated by centrifugal force and thrown out of the impeller. It flows into the discharge pipe of the water pump through the flow channel in the scroll pump casing. During this process, part of the kinetic energy of the water is converted into pressure energy. At the same time, a low-pressure area is formed at the center of the water pump impeller because water is thrown out. Under the action of the difference between the liquid surface pressure and the pressure inside the pump, the liquid enters the impeller of the pump through the suction pipe to fill the position of the discharged liquid. As long as the impeller keeps rotating, liquid is continuously sucked in and discharged.
➹ Malfunction problem: What should I do if the fire pump cannot be started?
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Approach:
1. First check the power supply:
Whether the joint connection is secure;
Whether the switch contact is tight;
Whether the fuse is blown;
Whether the three-phase power supply is equal or not.
If there is an open circuit, poor contact, blown fuse, or phase loss, the cause should be identified and repaired in time.
2. Secondly, check whether it is a mechanical failure of the water pump itself. Common reasons are:
The packing is too tight or the space between the impeller and the pump body is stuck and blocked by debris;
The pump shaft, bearings and leakage reducing ring are rusted;
The pump shaft is severely bent, etc.
Method of exclusion:
Loosen the filler and clear the water diversion channel;
Disassemble the pump body to remove debris and rust;
Remove the pump shaft and correct it or replace it with a new one.
➹Malfunction problem: The fire pump vibrates seriously
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Approach:
1. The fire pump and the motor shaft are not concentric? [The effective energy obtained by the liquid passing through the fire pump is obtained from the impeller of the pump, and the energy obtained by the impeller is obtained from the pump shaft, and the energy obtained by the pump shaft is provided by the motor. . When the pump is running, the pump shaft drives the impeller to rotate at high speed. If the pump body and pump shaft are not installed correctly, the impeller will deviate and rub against the pump casing, causing vibration. In severe cases, the impeller and pump casing may be damaged. 】Adjust and align the fire pump and motor axis.
2. Is the fire pump shaft bent? Remove and straighten it or replace it with a new one.
3. The impeller is unbalanced? Remove it and find balance.
4. Are the parts of the rotating part loose or broken? Is the pipe support weak? [After the centrifugal fire pump is started, the impeller will rotate at high speed. If the installation of the centrifugal fire pump is not firm, or the fasteners become loose due to long-term operation, the pump will produce vibration and noise during operation, and may even be damaged in a short period of time. 】Reinforcement, straightening, replacement and other methods
5. Wear between the impeller and sealing ring [If the impeller and sealing ring cannot ensure good lubrication, wear will occur between the two and the gap will increase. When the gap exceeds a certain value, it will cause vibration and noise in the pump. The degree of wear increases with the running time of the pump. 】
6. Cavitation causes abnormal sound inside the pump
Excessive resistance in the suction pipeline, leakage of air due to loose sealing, excessive temperature of the liquid being sucked, excessive flow rate, etc. will cause cavitation, resulting in abnormal sounds or violent vibrations in the pump.
➹ Malfunction problem: The fire pump cannot pump out liquid
________________________________________
Approach:
1. The pressure-out pipe is too thin and the pipe loss is too great? Replace the pressure-out pipe with a suitable one.
2. The operating lift exceeds the design lift? Select a new fire pump.
3. There is air in the pump body or air accumulation in the water inlet pipe, or the bottom valve is not closed tightly and the water diversion is not full, the vacuum pump packing is seriously leaking, and the gate valve or flap door is not closed tightly. Troubleshooting method: Press the water up first, then fill the pump body with water, and then turn it on. At the same time, check whether the check valve is tight and whether there is air leakage in the pipelines and joints. If air leakage is found, apply lubricating oil or mixed paint to the joints after disassembly and tighten the screws. Check the oil seal ring of the water pump shaft. If it is severely worn, replace it with a new one. The pipes are leaking water or air. Maybe the nut was not tightened tightly during installation. If the leakage is not serious, you can apply cement or cement slurry mixed with asphalt oil on the air or water leakage area. Temporary repairs can be done with wet mud or soft soap. If there is water leakage at the joint, you can use a wrench to tighten the nut. If the water leakage is serious, you must reassemble and replace the cracked pipe; reduce the lift and press the nozzle of the water pump 0.5m underwater.
4. The suction height exceeds the allowable range? Reinstall the fire pump according to the allowable suction height.
5. To transport hot and volatile media? Reduce the suction lift or use reverse filling and installation.
6. The steering is reversed? Correct the steering.
7. No filling liquid? Refill the fire pump.
8. Is the flow path of the suction pipe, outlet pipe or fire pump blocked? Remove debris.
➹Malfunction problem: seal leakage
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There are two types of fire pump seals: mechanical seals and packing seals. The mechanical seal has good sealing effect and long service life. If the vibration of the fire pump is too large during operation, the liquid film on the seal end face will be easily damaged, causing leakage of the mechanical seal. In severe cases, it may cause wear, cracking or damage of the mechanical seal. The compression packing seal has a simple structure and is easy to assemble and maintain, making it easy to detect sealing failures in the pump in time. It is more suitable for the intermittent working characteristics of fire pumps. The American NF-PA20 stipulates that fire pumps cannot use mechanical seals. Our country's specifications do not stipulate the sealing method of fire pumps, but the use of packing seals should be considered in the design.
The mechanical seal leaks seriously, how to deal with it?
1. The fixing screw is loose, causing the spring to lose its function? Tighten the screw or readjust the spring.
2. Insufficient spring pressure? Readjust the spring compression or replace the spring.
3. Is the static ring assembly skewed? Reinstall the static ring for the fire pump.
4. Is the end face of the dynamic or static ring corroded, worn or scratched? Repair or replace the damaged dynamic or static ring.
5. The processing accuracy and smoothness of the shaft sleeve are not enough, which affects the axial movement of the moving ring? Replace the shaft sleeve with qualified processing accuracy.
6. Impurities, foreign matter or medium crystallization affects the axial movement of the moving ring or is it supported between the end faces of the moving and stationary rings?
Eliminate impurities, foreign matter and crystals and thoroughly clean sealing elements.
7. Is the dynamic ring seal assembly tilted or corroded and deformed? Reinstall or replace the dynamic ring seal for fire pumps.
Precaution:
If an end face seal is used, the wear of the seal end face should be checked regularly; when replacing the connection between the motor and the pump, it should be controlled within the allowable deviation range to reduce the vibration of the pump and prevent leakage caused by damage to the liquid film on the seal end face.
The packing seal leaks seriously, what should I do?
1. The packing quality is poor and the sealing performance is not good? Replace the asbestos packing that meets the requirements.
2. The shaft sleeve is too worn? Replace the shaft sleeve.
3. The packings are of different sizes or severely worn? Replace the packings of the same type.
4. The packing is too loose? Tighten the packing gland to the appropriate level.
5. The packing device is not good? Adjust the packing joint so that it is staggered at a certain angle and not in the same direction.
Precaution:
For fire pumps that use packing seals, the inspection of the sealing packing should be strengthened. If the sealing is not tight, the packing should be replaced in time to prevent the pump from leaking during operation and affecting its performance.
➹ Malfunction problem: The fire pump consumes too much power
________________________________________
1) Wrong direction of rotation
Elimination measures: Check the direction of rotation.
2) Impeller damaged
Elimination measures: Check the impeller and replace it as required.
3) Rotating parts are seized
Elimination measures: Check whether the clearance of internal worn parts is normal.
4) Shaft bending
Elimination measures: straighten the shaft or replace as required.
5) Speed is too high
Elimination measures: Check the winding voltage of the motor or the steam pressure delivered to the turbine.
6) The water head is lower than the rated value. Pumping too much liquid
Elimination measures: Consult the manufacturer. Install the throttle valve and cut the impeller.
7) The liquid is heavier than expected
Elimination measures: Check specific gravity and viscosity.
8) The stuffing box is not stuffed correctly (insufficient stuffing, not stuffed or run-in correctly, stuffing too tight)
Elimination measures: Check the stuffing and refill the stuffing box.
9) Incorrect bearing lubrication or bearing wear
Elimination measures: Check and replace as required.
10) Incorrect running clearance between wear rings
Elimination measures: Check whether the gap is correct. Replace the water pump casing and/or impeller wear rings as required.
11) The stress on the pipes on the pump casing is too great
Elimination measures: Eliminate the stress and consult the manufacturer's representative. After stress relief, check alignment.
➹ Malfunction problem: What should I do if the fire pump is hot?
________________________________________
Cause Analysis:
Bearing damage;
The clearance of the rolling bearing or bracket cover is too small;
The pump shaft is bent or the two shafts are not concentric;
The tape is too tight;
Lack of oil or poor oil quality;
The balance hole on the impeller is clogged, causing the impeller to lose balance and increase the thrust to one side.
Method of exclusion:
Replace bearings;
Remove the back cover and install a gasket between the bracket and the bearing seat;
Investigate the pump shaft or adjust the concentricity of the two shafts;
Properly adjust the tightness of the tape;
Add clean butter, which accounts for about 60% of the gap in the bearing;
Clear the blockage in the balance hole.
➹ Malfunction problem: Fire pump motor overheats
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1. Is the packing gland pressed too tightly or the mechanical seal spring adjusted too tightly? Readjust the spring compression amount of the gland or mechanical seal.
2. The use range (flow rate, head) exceeds the design requirements of the fire pump? Select the appropriate motor according to the series type spectrum.
3. The assembly quality of the fire pump is poor. Is there any friction or the motor and the fire pump shaft are not concentric? Check the assembly quality and eliminate assembly faults.
4. If the specific gravity of the medium exceeds the motor configured for the fire pump? Configure a suitable motor for the fire pump.
➹ Malfunction problem: What should I do if the power motor of the fire pump overheats?
________________________________________
1. Power supply reasons:
The voltage is too high or too low. Under a specific load, if the voltage variation range should be outside +10% to -5% of the rated value, it will cause the motor to overheat;
The three-phase voltage of the power supply is asymmetrical, and the imbalance between the three-phase voltages of the power supply exceeds 5%, which will cause the winding to overheat;
Phase loss operation, experience shows that more than 85% of agricultural motors are burned due to phase loss operation, and a phase loss protection device should be installed on the motor.
2. Water pump reasons:
1) If the power is not matched, a small horse pulls a large cart, the motor will be overloaded for a long time, causing the motor temperature to be too high;
2) Motors that are started too frequently and are rated for short-time or intermittent working work continuously. The number of starts should be limited, thermal protection should be selected correctly, and used according to the rated rating calibrated on the motor.
3. Causes of the motor itself:
The connection method is wrong, and the △ shape is mistakenly connected into a Y shape, causing the temperature of the motor to rise rapidly;
The stator winding has phase-to-phase short circuit, inter-turn short circuit or partial grounding. In mild cases, the motor will overheat locally, and in severe cases, the insulation will burn out;
The squirrel cage rotor is broken or defective. When the motor runs for 1 to 2 hours, the iron core temperature rises rapidly;
If the ventilation system fails, check whether the fan is damaged, whether the rotation direction is correct, and whether the ventilation holes are blocked;
Bearing wear and eccentric sweep of the rotor cause the stator and rotor cores to rub against each other, causing a metallic impact sound. The temperature of the core rises rapidly. In severe cases, the motor smokes or even the coil is burned.
4. Reasons related to working environment:
The motor windings are affected by moisture or dust, oil, etc. are attached to the windings, resulting in reduced insulation. The insulation resistance of the motor should be measured and cleaned and dried;
The ambient temperature is too high. When the ambient temperature exceeds 35°C, the inlet air temperature will be high, which will cause the temperature of the motor to be too high, so efforts should be made to improve the working environment. Such as setting up a shed to provide shade, etc.
Note: If a malfunction occurs due to electrical reasons, you should ask an electrician with a professional qualification certificate to repair it. People with little knowledge should not make blind repairs to prevent personal injury accidents.
➹Malfunction problem: Fire pump bearing overheating
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1. Are the fire pump and motor shafts not concentric? Adjust and align the fire pump and motor shafts.
2. There is no or not enough lubricating oil (grease). Add lubricating oil (grease) to the required standard.
3. Bearing damaged? Replace with new fire pump bearing.
➹Malfunction problem: The lift of the fire pump is not enough
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1) Insufficient rotational speed: Check the current and restore the rotational speed.
2) The gap between the semi-open impeller and the fire pump cover is too large? Reduce the gap.
3) The performance of the fire pump cannot meet the design requirements? Replace with a fire pump that meets the design requirements.
4) The pipeline is too long or has a right-angle bend; shorten the pipeline or change the curvature of the pipeline;
5) The suction lift is high; lower the installation position of the water pump.
6) The bottom valve, pipeline and impeller are partially blocked or the impeller is defective; seal the leakage of the water pump and tighten the packing; clear the blockage and replace the impeller;
7) The water outlet pipe leaks seriously. Replace the leak reduction ring and plug the leak.
➹Malfunction problem: The flow rate of the fire pump is not enough
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1) The power speed does not match or the belt slips, causing the speed to be low; restore the rated speed, clean the belt grease, and adjust the belt tightness;
2) The sealing ring is severely worn or corroded? Replace the sealing ring with a new one.
3) The installation angle of the axial flow pump blades is too small; the gap between the semi-open impeller and the fire pump cover is too large? - Adjust the blade angle and reduce the gap.
4) Is the suction pipe too thin or blocked by debris? Change the appropriate pipe and remove the debris.
5) The impeller is severely worn or corroded? Replace the impeller with a new one.
6) The immersion depth of the suction pipe is not enough. Is air being sucked into the fire pump? Increase the immersion depth of the suction pipe. Reinstall the static ring for the fire pump.
➹Malfunction problem: Pump shaft broken
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Cause Analysis:
Poor bearing lubrication will cause the bearing to overheat and cause serious wear;
The pump shaft and motor shaft are not concentric;
Overload operation, etc. may cause the pump shaft to break.
Responses:
Regularly check and clean the bearing body in time to ensure there is enough lubricating oil to prevent dry grinding and heat generation;
Regularly calibrate the pump shaft and motor shaft to ensure that the two axes are always on the same center line.
In order to prevent the centrifugal pump bearing rotor from losing stability and breaking, especially high-pressure centrifugal pumps, the unstable speed of the rotor should be controlled to be higher than the maximum working speed of the rotor in the design, and the safety margin should be appropriately considered.
The above situations are common causes of water pump failure, but they are not all causes. When handling failures in practice, due to actual analysis, the principle of first outside first and then inside should be followed, and never operate blindly.
It is worth noting that when starting the pump, the valve on the outlet pipeline should be closed first to achieve "zero flow" start. Otherwise, the starting current of the motor will be too large and burn out.
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March 11, 2024
Isuzu electricity vacuum brush washing truck
Isuzu electricity vacuum brush washing truck is a special vehicle for cleaning road garbage. Isuzu electricity vacuum brush washing truck is a new type of efficient cleaning equipment that integrates road cleaning, garbage recycling and transportation. It can be widely used in road cleaning operations such as urban streets, municipal squares, airport pavements, urban residential areas, and parks.
Isuzu electricity vacuum brush washing truck can not only clean garbage, but also dust and purify the air medium on the road, ensuring that the road is clean and tidy, preventing dust from flying, maintaining the good working condition of the road surface, and reducing and preventing traffic accidents occurrence and further extend the service life of the pavement. Originally, I was going to give a detailed introduction to the Isuzu electricity vacuum brush washing truck.
1. Working principle of Isuzu electricity road sweeper
1). Power system: Isuzu electricity road sweeper is equipped with a battery as a power source, and uses a motor to drive the vehicle forward, backward or steering. Isuzu electricity road sweeper usually uses DC motor or AC brushless motor, which has efficient and stable power output to ensure the normal operation of the vehicle and the smooth progress of cleaning operations.
2). Cleaning device: Isuzu electricity road sweeper is equipped with a cleaning device, which usually includes a rotating brush and a vacuum nozzle. The rotating brush is used to clean dust, garbage and debris on the ground and push it towards the vehicle's vacuum inlet. The vacuum inlet uses strong suction to suck the cleaned garbage and dust into the vehicle's dust storage box to achieve floor cleaning and sweeping operations.
3). Operation control: The cab of the Isuzu electricity road sweeper is equipped with a console and an operation panel. The operator controls the forward, backward, steering, cleaning and other actions of the vehicle through the operation buttons or control levers.
2. Structural features of Isuzu electricity road sweeper truck
1). Chassis structure: The chassis of Isuzu electricity road sweeper truck is usually made of metal materials and has good load-bearing capacity and stability. The chassis is equipped with key components such as motors, batteries, and transmission systems to provide power and support for the entire vehicle. The chassis is reasonably designed and can adapt to various terrains and environmental conditions to ensure the stability and safety of the vehicle during cleaning operations.
2). Cleaning device: The cleaning device of the Isuzu electricity road sweeper truck includes brushes, vacuum nozzles and other components, which are used to clean and collect garbage, dust and debris on the ground. Cleaning devices are usually made of high-strength and wear-resistant materials, with long service life and efficient cleaning effects. The design of the cleaning device is flexible and can be configured and adjusted according to different cleaning needs.
3). Cab design: The cab of Isuzu electricity road sweeper truck is usually designed to be simple and clear, and is equipped with control panel operating equipment to provide the operator with a comfortable and convenient operating environment. The cab can also be equipped with air conditioning, heating and other equipment to improve the operator's work comfort and efficiency. The cab adopts a sealed and sound-proof design, which can effectively reduce noise and vibration and protect the operator's health and safety.
4). Control system: Isuzu electricity road sweeper truck is equipped with an intelligent control system, which can realize automated operation and remote monitoring. The control system includes main controller, sensors, control panel and other components, which can realize the start and stop, steering, speed adjustment and other functions of the cleaning device. Operators can operate and monitor the equipment through the control system to ensure the accuracy and efficiency of cleaning operations.
5). Safety protection devices: Isuzu electricity road sweeper truck is also equipped with a variety of safety protection devices, including braking systems, alarm devices, anti-collision devices, etc., to improve the safety and stability of the vehicle during operation. Safety protection devices can detect and handle unexpected situations in time to ensure the safety of operators and the surrounding environment. At the same time, Isuzu electricity road sweeper truck also adopts anti-skid design and environmentally friendly materials to reduce damage to the ground and environment.
3. Application scenarios of Isuzu electricity street vacuum sweeper
1). Urban road cleaning: Isuzu electricity street vacuum sweeper can be used for cleaning urban roads, streets, and sidewalks. It can quickly and efficiently clean garbage, dust and fallen leaves on the road, improve the cleanliness and beauty of urban roads, and improve the environment for pedestrians and vehicles.
2). Public squares and street gardens: Urban public squares, street gardens and other places are often places for citizens to relax and entertain, so they require high cleanliness. Isuzu electricity street vacuum sweeper can help cleaning workers quickly clean these places, keep them tidy and clean, and provide citizens with a comfortable leisure environment.
3). Commercial centers and shopping plazas: Commercial centers and shopping plazas are places where merchants and consumers have frequent activities, and there are a large number of people and vehicles flowing every day. Isuzu electricity vacuum brush washing truck can help maintain the hygiene of business centers and shopping malls, enhance the business atmosphere, and attract more customers.
4). Factories and warehouses: Factories and warehouses are usually places where items are produced and stored, and a large amount of dust, debris and debris often accumulate on the ground. Isuzu electricity road sweeper truck can help factories and warehouses maintain cleanliness, reduce dust pollution on equipment and products, and improve production efficiency.
5). Airports and terminals: Airports and terminals are city gateways, with a large number of passengers and cargo coming and going every day. Isuzu electricity road sweeper truck can be used for cleaning runways, aprons, terminals and other places at airports and terminals to ensure the safe operation of aircraft and ships.
In summary, with the continuous advancement of science and technology and the increasing awareness of people's environmental protection, Isuzu electricity vacuum brush washing truck, as a modern cleaning equipment, has high cleaning efficiency, environmental protection and applicability. Isuzu electricity vacuum brush washing truck Truck will usher in broader development prospects.