CN218961641U - A backpack-type multi-phase multi-agent combined fire extinguishing equipment for individual combat - Google Patents

Abstract

The backpack type multiphase multi-agent combined fire extinguishing equipment for individual combat comprises a backpack frame, wherein a water-based fire extinguishing agent tank is vertically arranged in the middle of the back surface of the backpack frame, an ultrafine dry powder tank and a carbon fiber high-pressure nitrogen gas cylinder are vertically arranged at the left side and the right side of the water-based fire extinguishing agent tank respectively, the top of the carbon fiber high-pressure nitrogen gas cylinder is connected with a pressure hose through a valve, the pressure hose is sequentially communicated with the top of the water-based fire extinguishing agent tank and the top of the ultrafine dry powder tank, and the tail end of a powder spraying pipeline and the tail end of a water agent spraying pipeline are commonly connected with a water-powder-gas combined spray gun; the utility model takes high-pressure nitrogen as power, and the high-pressure nitrogen can lead the three-phase fire extinguishing agent to reach the root of the combustible material by the strong power; the fire extinguishing effect is good, and the equipment can be carried on the back and is convenient to carry.

Description

A backpack-type multi-phase multi-agent combined fire extinguishing equipment for individual combat

technical field

The utility model relates to a knapsack multi-phase multi-agent combined fire extinguishing equipment for individual combat.

Background technique

With the further improvement of fire-fighting equipment product technology, the rescue function and fire-fighting ability of fire trucks have also been greatly improved. However, in the old residential areas in the city, the fire-fighting passages are narrow, and household vehicles occupying the fire-fighting passages are seriously parked and placed randomly. Due to geographical reasons, there are few fire rescue teams in rural areas. Therefore, once a fire breaks out in old communities and rural areas, firefighting vehicles often cannot reach the fire scene for rescue in the first place.

The community fire trucks and fire motorcycles that have appeared in recent years have gradually been recognized for their advantages of flexibility and passability. However, community fire trucks are mostly equipped with fire water tanks and portable dry powder fire extinguishers. Fire motorcycles are vehicle-mounted Water mist or foam is the main configuration. For residential high-rise buildings, the two types of fire-fighting equipment cannot achieve close-in fire extinguishing due to their limited range. Although portable dry powder fire extinguishers can reach high-rise fires, their fire-extinguishing efficiency is low.

The occurrence and continuous development of flaming combustion must meet four necessary conditions, that is, combustibles, oxidants, temperature and uninhibited chain reaction, and only one of the elements needs to be destroyed to extinguish the fire. Ultrafine dry powder fire extinguishing agent is a complex composed of ultrafine particles with a particle size of 90% less than 20µm and the gaps between particles. It is a fire extinguishing agent that participates in combustion reactions. The minimum fire extinguishing concentration for extinguishing fires A, B, and C is ≤150g/m3, making it the fire extinguishing agent with the highest fire extinguishing efficiency among known fire extinguishing agents. Although ultra-fine dry powder fire extinguishing agent has extremely high fire extinguishing efficiency, its application in China is mainly limited to hanging fire extinguishing devices, and there is no other carrying equipment, which seriously limits its application.

Utility model content

In order to solve the above technical deficiencies, the utility model provides a backpack type multi-phase multi-agent combination fire extinguishing equipment for individual combat, which has good fire extinguishing effect and is easy to carry.

The utility model is achieved through the following measures:

A knapsack-type multi-phase multi-agent combined fire extinguishing equipment for individual combat, including a backpack, a water-based fire extinguishing agent tank is vertically arranged in the middle of the back of the backpack, and the left and right sides of the water-based fire extinguishing agent tank are respectively vertical An ultrafine dry powder tank and a carbon fiber high-pressure nitrogen cylinder are provided, and the top of the carbon fiber high-pressure nitrogen cylinder is connected with a pressure hose through a valve, and the pressure hose is connected to the top of the water-based fire extinguishing agent tank and the top of the ultrafine dry powder tank in turn. The bottom of the superfine dry powder tank is connected with a powder spray pipeline, the bottom of the water-based fire extinguishing agent tank is connected with a water spray pipeline, and both the powder spray pipeline and the water spray pipeline are provided with valves , the end of the powder injection pipeline and the end of the water injection pipeline are jointly connected with a water-powder-air combination spray gun;

The water-powder-air combination spray gun includes a handle and a riser, above the handle is provided with a clamp seat for fixing the powder spraying pipeline and the water spraying pipeline, the riser comprises a cylindrical shell, and the shell One end of the body is connected to the end of the water agent spraying pipeline, a central through hole is opened in the middle of the shell, and the other end of the shell is opened with a water spray port that is wide on the outside and narrow on the inside. The end of the powder spraying pipeline is sealed and penetrates the water spraying pipe The pipe mouth, the central through hole and the water spray outlet pass through the water injection pipeline in turn and extend to the outside of the housing. The powder injection pipeline in the water injection outlet is covered with a spray baffle, and the spray baffle There is a spray gap between the side wall of the plate and the side wall of the water spray port, and the inner wall of the central through hole is provided with a water hole connecting the spray gap and the water spraying pipeline.

The outer sliding sleeve of the above-mentioned riser has a DC retaining ring that can cover the upper part of the spray gap outlet, and an axially extending chute is opened on the outer wall of the housing, and the side wall of the DC retaining ring is radially pierced and embedded in the chute. A limit screw that slides along the chute.

The inner wall of the above-mentioned central through hole is evenly provided with several protruding tooth-shaped convex strips, and the tooth-shaped convex strips are evenly arranged in a circle along the inner wall of the central through-hole, and the gap between two adjacent tooth-shaped convex strips forms a water passage. hole.

The top of the carbon fiber high-pressure nitrogen cylinder is provided with a pressure reducing combination valve, the pressure hose is connected to the pressure reducing combination valve, and the top of the water-based fire extinguishing agent tank is provided with a safety combination valve.

The end of the water agent spraying pipeline is threadedly connected to the housing, and a conical channel is arranged in the housing between the central through hole and the mouth of the water spraying pipeline. A sealing ring is provided between them.

The above-mentioned spray baffle is conical with wide outside and narrow inside. The center of the spray baffle is threaded on the powder spraying pipeline and connected with threads. There is a spray gap between the conical surface of the spray baffle and the conical surface of the water spout.

The beneficial effects of the utility model are: the utility model uses high-pressure nitrogen as the power, and the strong power of the high-pressure nitrogen can make the three-phase fire extinguishing agent reach the roots of combustibles; through the water-powder-air combination gun, the high-pressure fine water mist water-based fire extinguishing agent can be realized Single injection or combined injection of ultra-fine dry powder fire extinguishing agent, high-pressure nitrogen and strong power to suppress and suffocate fire; ultra-fine dry powder fire extinguishing agent inhibits the combustion reaction chain (chemical fire extinguishing) to extinguish class A, B, C, E, F fires in seconds, fine water The mist water-based fire extinguishing agent quickly cools down and cools (physically) fires, prevents re-ignition, and achieves dual fire extinguishing effects of physics and chemistry. Moreover, this equipment can be carried on the back - it can be used for individual combat, which has changed the inconvenience of carrying dry powder fire extinguishers and traditional backpack fire extinguishers. single agent and low fire extinguishing efficiency. After the equipment is mixed with high-pressure water mist and dry powder, it has the effect of eliminating smoke; it is suitable for firefighters to quickly put out any fires except Class D fires and rescue trapped people. It is the supporting equipment for firefighters on patrol; It can be used in conjunction with community fire trucks and fire motorcycles to quickly extinguish initial fires in high-rise residential buildings and rural residences; it can also be used as the main supporting product of miniature fire stations to improve the emergency fire fighting and rescue capabilities of miniature fire stations.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation of the water-powder-air combination spray gun of the present utility model.

Fig. 3 is a schematic cross-sectional structure diagram of the riser.

Fig. 4 is a schematic diagram of the cross-sectional end surface structure of the riser.

Fig. 5 is a structural schematic diagram of a state in which the DC retaining ring is stretched out.

Fig. 6 is a structural schematic diagram of the retracted state of the DC retaining ring.

Among them: 1 water-powder-air combination spray gun, 2 superfine dry powder tank, 3 pressure hose A, 4 water-based fire extinguishing agent tank, 5 safety combination valve, 6 tee, 7 decompression combination valve, 8 pressure hose B, 9 Carbon fiber high-pressure nitrogen cylinder, 10 backpack frame, 11 pressure hose C, 12 pressure hose D, 21 handle, 22 pipe clamp seat, 23 chute, 24 valve, 25 powder injection pipeline, 26 water injection pipeline , 27 risers, 28 limit screws, 29 DC retaining rings, 30 spray baffles, 31 center through holes, 32 tooth-shaped convex strips.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figures 1-6, a knapsack type multi-phase multi-agent combined fire extinguishing equipment for individual combat, including a backpack 10, a water-based fire extinguishing agent tank 4 is vertically arranged in the middle of the back of the backpack 10, and the water-based fire extinguishing agent The left and right sides of the tank 4 are respectively vertically provided with an ultra-fine dry powder tank 2 and a carbon fiber high-pressure nitrogen cylinder 9, and the top of the carbon fiber high-pressure nitrogen cylinder 9 is connected with a pressure hose through a valve, and the pressure hose is connected to the top of the water-based fire extinguishing agent tank 4 and The top of the superfine dry powder tank 2, the bottom of the superfine dry powder tank 2 is connected with the powder spray pipeline 25, the bottom of the water-based fire extinguishing agent tank 4 is connected with the water spray pipeline 26, the powder spray pipeline 25 and the water spray pipeline The spraying pipelines 26 are all provided with valves, and the end of the powder spraying pipeline 25 and the end of the water spraying pipeline 26 are jointly connected with a water-powder-air combination spray gun 1;

The water-powder-air combination spray gun 1 includes a handle 21 and a riser 27, the handle 21 is provided with a pipe clamp seat 22 for fixing the powder spraying pipeline 25 and the water spraying pipeline 26, the riser 27 includes a cylindrical shell, and the shell One end of the body is connected to the end of the water agent spraying pipeline 26, a central through hole 31 is opened in the middle of the housing, and a water spray port with a wide outside and a narrow inside is opened at the other end of the housing. The end of the powder spraying pipeline 25 is sealed and penetrates into the water agent In the spray pipeline 26, it passes through the mouth of the liquid spray pipeline 26, the central through hole 31 and the water spray port to extend to the outside of the housing. The powder spray pipeline 25 in the water spray port is covered with a spray stop Plate 30, a spray gap is left between the spray baffle plate 30 sidewall and the water spout sidewall, and the inner wall of the central through hole 31 is provided with a water hole communicating with the spray gap and the liquid spraying pipeline 26. The outer sliding sleeve of the riser 27 is provided with a DC retaining ring 29 that can cover the top of the spray gap outlet, and an axially extending chute 23 is opened on the outer wall of the housing, and the side wall of the DC retaining ring 29 is radially pierced with embedded slides. The limit screw 28 in the groove 23 and can slide along the slide groove 23. The inner wall of the central through hole 31 is evenly provided with a number of protruding tooth-shaped convex strips 32, and the tooth-shaped convex strips 32 are evenly arranged in a circle along the inner wall of the central through-hole 31. The gap forms a water hole. The top of the carbon fiber high-pressure nitrogen cylinder 9 is provided with a combined decompression valve 7, the pressure hose is connected to the combined decompression valve 7, and the top of the water-based fire extinguishing agent tank 4 is provided with a combined safety valve 5. The end of the liquid spray pipeline 26 is threadedly connected to the housing, and a conical channel is arranged in the housing between the central through hole 31 and the mouth of the water spray pipeline 26, and the water spray pipeline 26 and A sealing ring is arranged between the housings. The spray baffle 30 is conical with wide outside and narrow inside. The center of the spray baffle 30 is threaded on the powder ejection pipeline 25, and a spray is left between the conical surface of the spray baffle 30 and the conical surface of the water spout. gap.

The water-based fire extinguishing agent tank 4 is connected to the back frame 10, and the top of the water-based fire extinguishing agent tank 4 is equipped with a safety combination valve 5 and a tee 6, and an ultra-fine dry powder agent tank 2 and a carbon fiber high-pressure nitrogen cylinder 9 are installed on both sides, and a carbon fiber high-pressure nitrogen gas cylinder is installed. The outlet of the bottle 9 is equipped with a decompression combination valve 7, the outlet of the decompression combination valve 7 is connected to the tee 6 through the pressure hose B8, and the tee 6 is connected to the upper inlet of the ultrafine dry powder tank 2 through the pressure hose A3. The powder outlet at the lower end of the tank 2 is connected to the ultra-fine dry powder passage inlet of the water-powder-air combination gun through a pressure hose C11, and the water-based passage inlet at the lower end of the water-based fire extinguishing agent tank 4 is connected to the water-powder-air combination gun 1 through a pressure hose D12.

When in use, unscrew the bottle head valve of the carbon fiber high-pressure nitrogen cylinder 9 by hand, and the high-pressure nitrogen in it reaches the water-based fire extinguishing agent tank 4 respectively through the combination pressure reducing valve 7, pressure hose B8, tee 6, and pressure hose A3 (with water in the tank) and superfine dry powder tank 2 (with superfine dry powder in the tank), when the pressure in the water-based fire extinguishing agent tank 4 and the superfine dry powder tank 2 reaches the set value of the decompression combination valve 7 , the combined decompression valve 7 will automatically stop the gas supply. Now open the superfine dry powder access valve 24 of the water-powder-air combination gun, and the superfine dry powder fire extinguishing agent is sprayed out through the powder ejection pipeline 25 under the drive of compressed nitrogen, which can realize spraying superfine dry powder fire extinguishing agent and nitrogen fire extinguishing, and close the superfine dry powder fire extinguishing agent. Open the fine dry powder passage valve 24, open the fine water mist passage valve 24 of the water-powder-air combination gun, and the water-based fire extinguishing agent will be sprayed out in the form of fine water mist through the annular tooth groove in the center of the riser 27 under the drive of compressed nitrogen, which can realize Spray water-based fine water mist to extinguish the fire. At this time, by sliding the DC retaining ring 29 at the front end of the water-powder-air combination gun, the direct current and flowering functions of the fine water mist can be realized. Under the function of the flowering fine water mist, heat radiation can be blocked, which is convenient for firefighters. Get close to the fire source. When the ultra-fine dry powder passage valve and the fine water mist passage valve of the water-powder-air combination gun are opened at the same time, the ultra-fine dry powder fire extinguishing agent, nitrogen and water-based fine water mist will be sprayed from the water-powder-air combination gun to realize the ultra-fine dry powder fire extinguishing agent— - fine water mist - mixed injection of three fire extinguishing agents of nitrogen, superfine dry powder fire extinguishing agent quickly blocks the combustion reaction chain to extinguish the fire, and the strong power of high-pressure nitrogen can make the three-phase fire extinguishing agent reach the root of combustibles. Physical and chemical comprehensive fire extinguishing, water The base fine water mist cools down the fire site, prevents re-ignition, and achieves the dual fire extinguishing effects of physical and chemical fire extinguishing agents.

After the fire extinguishing equipment is used, press the vent cap on the top of the safety combination valve 5 with hands, the residual pressure of the water-based fire extinguishing agent tank 4 and the superfine dry powder tank 2 can be released to ensure safety.

Experimental example: Contrast test for extinguishing Class A and Class B fires:

Select the knapsack multi-phase multi-agent combination fire extinguishing equipment for individual combat described in this patent, 4 water-based fire extinguishing agent tanks are filled with 8L water, 2 superfine dry powder tanks are filled with 3kg ABC superfine dry powder fire extinguishing agent, carbon fiber high pressure Nitrogen cylinder 9 is filled with 25Mpa high-purity nitrogen.

The backpack-type high-pressure water mist fire extinguishing equipment produced by a certain manufacturer in Chengdu on the market is selected, and the rated water capacity is 12L as comparative example 1.

According to the standard GB4651.1-2005 "Portable Fire Extinguisher Part 1: Performance and Structure Requirements" 7.2.1 to establish a class A fire test model, according to the test conditions of 7.2.2, the test procedures of 7.2.3 and the test of 7.2.4 Assessment method for Class A fire extinguishing verification.

According to the standard GB4651.1-2005 "Portable Fire Extinguisher Part 1: Performance and Structure Requirements" 7.3.1 to establish a Class B fire test model, according to the test conditions of 7.3.2, the test procedures of 7.3.3 and the test of 7.3.4 The evaluation method is used to verify the fire extinguishing of Class B fires, and the comparison results are as follows:

The comparison effect is as follows:

Through the above comparison, the backpack type multi-phase multi-agent combined fire extinguishing equipment for individual combat of this patent has greatly improved the performance compared with similar products on the market when extinguishing standard Class A and Class B fires.

The above description is only the preferred implementation mode of this patent. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of this patent, some improvements and replacements can also be made. These improvements and replacements It should also be regarded as the scope of protection of this patent.

Claims (6)

1. A knapsack multi-phase multi-agent combined fire extinguishing equipment for individual combat, characterized in that: it comprises a backpack, a water-based fire extinguishing agent tank is vertically arranged in the middle of the back of the backpack, and the water-based fire extinguishing agent tank There are superfine dry powder tanks and carbon fiber high-pressure nitrogen cylinders installed vertically on the left and right sides respectively. The top of the carbon fiber high-pressure nitrogen cylinders is connected with a pressure hose through a valve, and the pressure hose is connected to the top of the water-based fire extinguishing agent tank and the superfine fire extinguishing agent tank in turn. The top of the dry powder tank, the bottom of the superfine dry powder tank is connected with a powder spray pipeline, the bottom of the water-based fire extinguishing agent tank is connected with a water spray pipeline, the powder spray pipeline and the water spray pipeline The pipelines are all equipped with valves, and the end of the powder injection pipeline and the end of the water injection pipeline are jointly connected with a water-powder-air combination spray gun; The water-powder-air combination spray gun includes a handle and a riser, above the handle is provided with a clamp seat for fixing the powder spraying pipeline and the water spraying pipeline, the riser comprises a cylindrical shell, and the shell One end of the body is connected to the end of the water agent spraying pipeline, a central through hole is opened in the middle of the shell, and the other end of the shell is opened with a water spray port that is wide on the outside and narrow on the inside. The end of the powder spraying pipeline is sealed and penetrates the water spraying pipe The pipe mouth, the central through hole and the water spray outlet pass through the water injection pipeline in turn and extend to the outside of the housing. The powder injection pipeline in the water injection outlet is covered with a spray baffle, and the spray baffle There is a spray gap between the side wall of the plate and the side wall of the water spray port, and the inner wall of the central through hole is provided with a water hole connecting the spray gap and the water spraying pipeline. 2. The knapsack-type multi-phase multi-agent combined fire extinguishing equipment for individual combat according to claim 1, characterized in that: the outer sliding sleeve of the riser has a DC retaining ring that can block the outlet above the spray gap, and the outside of the shell An axially extending chute is formed on the wall, and a limit screw embedded in the chute and capable of sliding along the chute is pierced radially on the side wall of the DC stop ring. 3. The knapsack-type multi-phase multi-agent combined fire extinguishing equipment for individual combat according to claim 1, characterized in that: the inner wall of the central through hole is uniformly provided with a number of protruding tooth-shaped convex strips, and the tooth-shaped convex The strips are evenly arranged in a circle along the inner wall of the central through hole, and the gap between two adjacent tooth-shaped convex strips forms a water passage hole. 4. The knapsack multi-phase multi-agent fire extinguishing equipment for individual combat according to claim 1, characterized in that: the top of the carbon fiber high-pressure nitrogen cylinder is provided with a decompression combination valve, and the pressure hose is connected to the decompression valve. On the combination valve, a safety combination valve is arranged on the top of the water-based fire extinguishing agent tank. 5. The knapsack multi-phase multi-agent fire extinguishing equipment for individual combat according to claim 1, characterized in that: the end of the water agent spraying pipeline is threadedly connected to the housing, and the central through hole is connected to the water agent spraying line. A conical channel is arranged in the casing between the nozzles of the outlet pipeline, and a sealing ring is arranged between the water solution spraying pipeline and the casing. 6. The knapsack-type multi-phase multi-agent combined fire extinguishing equipment for individual combat according to claim 1, characterized in that: the spray baffle is conical in shape with a wide outside and a narrow inside, and the center of the spray baffle passes through the area where the powder is sprayed out. The pipeline is threaded, and there is a spray gap between the conical surface of the spray baffle and the conical surface of the water spray port.

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