Structure:
This ISUZU 6000KG dry powder fire truck primarily comprises the chassis, cab, compartment, dry powder nitrogen system, and water pump system. The dry powder nitrogen system, in particular, serves as a crucial component of the entire fire truck and is predominantly composed of nitrogen bottles, dry powder tankers, dry powder monitors and guns, powder outlets, various valves, and equipment.
Main Elements of Dry Powder Nitrogen System:
- Nitrogen Bottles: These serve as the power source for conveying dry powder fire extinguishing agents. They are securely fixed at the back of the compartment using circlips and anti-loosening rubber pads.
- Dry Powder Tankers: These containers store dry powder fire extinguishing agents in the middle of the compartment with a fixed support structure. Intake pipes are attached to the tanker’s bottom, while pressure gauge connectors, outlet connectors, and safety valves are on top. The air intake structure features a one-way valve to prevent dry powder from flowing back.
- Dry Powder Monitor: This variable monitor comprises a monitor pipe, elbow inner casing, positioning instrument, and variable valves, allowing adaptation to different fire conditions.
Where Can Dry Powder Fire Extinguishers Be Used?
Dry powder fire extinguishers find application in the following scenarios:
- Class A fires: Involving flammable solids such as textiles, papers, and wood.
- Class B fires: Involving flammable liquids like diesel, petrol, or paint.
- Class C fires: Involving flammable gases such as methane or butane.
- Electric fires: Where electrical equipment is involved up to 1000 volts.
Working Principle of Dry Powder Nitrogen System: High-pressure nitrogen from the bottle flows into the dry powder tank through the pressure-reducing valve, serving as the power source for operation.
Operating Process of Powder Nitrogen System:
- Check that all valves are closed.
- Ensure the dry powder tanker is free of water and debris before injection. Clean the tanker cover and gasket to prevent air leakage.
- Inflate nitrogen into the powder tanker.
- Utilize the dry powder monitor.
- Clean the monitor.
- Expel excess gas from the tanker after operation.
SPECIFICATIONS:
| Overall Parameter | |
| Brand | ISUZU |
| Model | QL1250U1QDZY |
| Overall Dimension(mm) | 8465x2540x3500 |
| Total Weight(kg) | 33000 With Full Load |
| Capacity | 2*3000Kgs Dry Powder |
| Cabin | Double Cabin With 6 Seats |
| Highest Speed(km/h) | 90 |
| Fire extinguish capacity(kg) | 2×3000kg |
| Nitrogen vase | 12pcs and 80L per vase |
| Chassis | |
| Model of Chassis | ISUZU |
| Dritypeype | 6X4 |
| Wheelbase（mm） | 3985+1370 |
| Engine model | 6UZ1-TCG51 |
| Front/Rear axle loading(kg) | 7000+16000+16000 |
| Tire | 315/80R22.5,1200R22.5 |
| Engine rated Power(hp) | 3 |
| Emission Standard | Euro5 |
| PTO | YES |
| Fuel tank volume(L) | 400（Aluminum alloy material） |
| Transmission | ISUZU ZF(Automatic) |
| The highest speed(km/h) | 90 |
| Cab | |
| Structure | Crew cab with 2+2 doors for optimal entry and exit. |
| Seats | 6 people, |
| Advantage | Flat floors, low step heights, and taller, wider cab doors allow firefighters to get in and out quickly at the scene. |
| Dry Powder Extinguishing System | |
| 1. Dry powder tank | |
| Material | high-strength pressure steel Q345R |
| Quantity | 2 |
| Capacity(kg) | 2*2000kg |
| Rated pressure | 1.6MPa |
| Working pressure | 1.5MPa |
| Residual powder rate | ≤14% |
| 2. Nnnitrogenottle | |
| Material | 37Mn |
| Quantity？ | 12 |
| Rated pressure(MPa) | 15 |
| Volume(L) | 80/piece |
| 3. Pressure-reducing valve | |
| Quantity | 2 |
| Output pressure | 15MPa |
| Max. flowing | 2000m³ /h |
| The opening press | 1.6 MPa |
| 4.Dry Powde r Monitor | |
| Quantity | 2 |
| Working pressure | 1.2-1.4MPa |
| Rated flowing | 40kg/s |
| Range | ≥45m |
| Control | Manual |
| Horizontal rotation angle | 0°~360° |
| Pitch and rotation angle | -15°~60° |
| 5. Dry powder reel | |
| Quantity | 2 |
| Reel hose length | 25mm×40m |
| Injection rate | ≥2.5kg/s |
| Range | ≥12m |
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