High pressure water mist fire extinguishing spray gun cutter
Schematic diagram of ship fire
Equipment Introduction: Model WJFE 300
WJFE 300 high-pressure water mist fire extinguishing spray gun cutting machine system can allow users to extinguish fire outside the fire site, without entering the building on fire, to ensure the safety of firefighters. The system uses high-pressure water to drill a small hole in the wall of the building. Once the outer layer is penetrated, the fire extinguishing system sprays high-pressure water mist into the indoor fire point and hot layer, which can reduce the indoor temperature from 1500 C to 200 C in a few seconds, and achieve the goal of rapid cooling and fire extinguishing. The equipment can intervene quickly from the outside of the place where the fire occurs, and the risk of being exposed to heat, smoke or poisonous smoke is small. Through cutting, drilling, cooling, extinguishing, washing and other operations in dangerous places, flammable, explosive, toxic and harmful disaster sites. The high pressure water mist fire extinguishing spray gun cutting machine system minimizes the danger of this situation and maximizes the safety of fire fighting, rescue and fire extinguishing personnel.
High pressure water mist fire extinguishing spray gun cutter is an effective cutting and drilling tool, which can cut most iron plates, walls and so on. It is especially suitable for fire fighting in dangerous places such as poisonous and harmful, inflammable and explosive, dangerous chemicals, subway tunnels, petroleum and petrochemical, aircraft carrier ships, submersibles, closed warehouses, etc. It also has good practicability for fire sites such as chemical units, small and medium-sized oil depots, ancient wood buildings, tourist attractions, cultural relics protection units, libraries and so on. The equipment meets the requirements of public security fire protection, and can also be installed in fire trucks for fire fighting on special disaster sites.
The fire extinguishing system through the wall consists of a high pressure pump, a water supply pump, a high pressure pipe and a hand gun. Because of the high-pressure operation, the hand gun is soft connected with the high-pressure pump and the water supply pump, which improves the safety and avoids the formation of water hammer in the high-pressure pipe.
Sketch of Cutting Penetrating Steel Plate
Advantages:
1, through the special spray gun of high pressure water jet and abrasive mixture, open a small hole or small hole that penetrates the stainless steel wall, and spray water mist or foam extinguishing liquid inside and outside the high pressure to achieve the purpose of fire fighting, decontamination and so on.
2. Similarly, the spray gun can be changed from cutting to fire extinguishing and washing operations without changing the spray gun after cutting and opening. It can shorten the rescue time and implement the tasks of fire extinguishing, rescuing, washing and safety and efficiency in a race for seconds. It can also reduce the greater casualties and economic and property losses caused by the expansion of fire. 。
3. The diameter of water droplets in water mist is about 20-30 microns, which can make water and fire extinguishing media reach the highest thermal coverage surface, thus rapidly reducing the temperature. The system greatly reduces the losses caused by the use of large amounts of useless water and secondary hazards caused by fire extinguishing, and reduces unnecessary economic losses.
4. In the cutting operation, the high-speed high-pressure water flow and abrasive mixture concentrates and rubs sharply through the cutting layer, drilling through a small hole quickly. The cutting materials can be wood, brick wall, concrete, steel sheet and iron sheet. Once the hole is formed, the operator can change the injection mode, and the puncture wall layer will be terminated, and high-pressure water mist will be sprayed directly into the hot layer, while the operator will always be in the safe periphery of the fire site to ensure personal safety.
5. It only takes 1-2 minutes for the system to penetrate the brick-concrete wall. As for ordinary anti-theft doors, hard wood doors and aluminium alloy walls, they can be cut and penetrated in seconds. The experimental data show that it takes only about 5 minutes to extinguish a fire in a 50 square metre residential building.
Technical Indicator Parameters:
| Serial number |
technical specifications |
technical parameter |
| 1 |
Maximum pressure |
4351psi、300bar、30Mpa |
| 2 |
Maximum flow rate 300 bar |
4.74gpm，19 l/min |
| 3 |
Matching structure |
Stainless steel |
| 4 |
Tank capacity |
20rise |
| 5 |
Diesel engine power |
12.5Kilowatt |
| 6 |
NATO electrical outlets, auxiliary batteries for emergency use |
Yes |
| 7 |
Low Temperature Ignition(-32° C/-25,6° F) |
Yes? |
| 8 |
Fuel type (diesel engine) |
Diesel or JP8 or kerosene |
| 9 |
Pump piston material |
Aluminum oxide with titanium crystal |
| 10 |
Pump connecting rod |
brass |
| 11 |
Transmission shaft |
Treatment steel, 18 Ni-Cr-Mo 5 |
| 12 |
Inhalation/conveyor valve |
Conical seat, AISI stainless steel 416, stainless steel plate AISI 304, water passage section 95 mm2 |
| 13 |
Safety Valve on High Pressure Circuit |
Yes |
| 14 |
Thermal Safety Valve Protects Piston Seal of Pump |
Yes |
| 15 |
Continuous operation in "cutting" mode |
2Minute |
| 16 |
WJFE 300Weight plus battery |
230Kg. |
| 17 |
Machine dimensions |
840x840x840mm |
| 18 |
Standard accessories |
Hose 15 meters, hose reel, 2 abrasive boxes The spray gun has the functions described below. |
| 19 |
"Water-jet Abrasive" Model |
Yes |
| 20 |
Water mist "model (water atomization) |
Yes |
| 21 |
Foam mist (foam atomization) |
Yes |
| 22 |
The nozzle is made of sintered carbide |
Yes |
| 23 |
Nozzle aperture |
4mm 0.15nl |
| 24 |
Abrasive containers (barrels) |
3.5Kg, 7.7lb |
| 25 |
Continuous operation in "cutting" mode |
2Minute |
| 26 |
Time to replace abrasive tank (cartridge) |
5second |
| 27 |
Maximum Particle Size of Abrasive |
2.55mm |
| 28 |
Abrasive Quantity Regulation |
Yes |
| 29 |
Spray gun weight (air) |
Less than 6 kg |
| 30 |
Spray gun size (length) |
1320*170*410mm |
| 31 |
Time required to penetrate steel plate |
Thickness of 5 mm is about 30 s; thickness of 2 mm is about 8 s |
| 32 |
Abrasive consumption* |
1.5Kg/min |
Safety precautions:
The pressure of the high-pressure water mist fire extinguishing spray gun cutter exceeds 30 Mpa, and the system must be operated by trained and trained personnel. Do not point a high-pressure jet gun at anyone. Operators should always keep a safe distance from the nozzle. In addition, the operator must ensure a 9 meter long safe "working area", when using the high-pressure collision system, pay attention to the personal safety of the people around. It should not be used to fight the following fires: fires that react with water and cause combustion, explosion or a large number of harmful substances; fires that produce flammable gases in the presence of water; fires that produce intense boiling overflow of flammable liquids in the presence of water.
Applications:Fire-fighting duty and fire-fighting rescue in inflammable, explosive, poisonous and harmful special places such as military industry, armed police fire fighting, anti-terrorism special police, petrochemical oil depots, key cultural relics units, cigarette factories, libraries, shipyards, chemical factories, Airport hangars, port terminals, subway tunnels, etc.