Multi-agent combined fire extinguishing device special for offshore wind power generation

Abstract

The utility model relates to the technical field of fire extinguishing devices, in particular to a special multi-agent combined fire extinguishing device for offshore wind power generation, which comprises a tank body, a partition plate in the tank body divides an inner cavity of the tank body into a first storage cavity and a second storage cavity from top to bottom, a plurality of jet holes are arranged on the partition plate, and a baffle film is arranged on the jet holes. A perfluorohexanone fire extinguishing agent is contained in the first storage cavity, an upper storage tank is arranged at the top of the first storage cavity, a solid-gas conversion agent is contained in the upper storage tank, an ignition device corresponding to the solid-gas conversion agent is arranged on the upper storage tank, a gas outlet is formed in the upper storage tank, the gas outlet is located in the first storage cavity, and a partition film is arranged on the gas outlet; a superfine dry powder extinguishing agent is arranged in the second storage cavity, a powder outlet is formed in the bottom of the second storage cavity, a partition film is arranged on the powder outlet, and a nozzle is arranged on the powder outlet. According to the utility model, the problem of fire extinguisher failure caused by pressure relief is avoided, and the manual maintenance cost is saved; the advantages of different fire extinguishing agents are combined, and the fire extinguishing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing devices, in particular to a multi-agent combined fire extinguishing device special for offshore wind power generation. Background Art

[0002] There are many devices inside the offshore wind turbine cabin, which are running unattended all year round. Various parts are prone to problems, causing fires. Because it is in the sea, rescue forces cannot arrive in the first time. Therefore, it is necessary to install a fire extinguishing device. However, most fire extinguishing devices have pressure inside, and they are prone to pressure relief and failure of the fire extinguishing device due to years of disrepair. There are different types of fire extinguishing agents, each of which has fixed advantages and disadvantages. For example, ultra-fine dry powder fire extinguishing agent has high fire extinguishing efficiency but poor cooling effect; perfluorohexanone fire extinguishing agent has good cooling effect but poor fire extinguishing efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to propose a multi-agent combined fire extinguishing device specially used for offshore wind power generation, which avoids the problem of fire extinguisher failure caused by pressure relief and saves manual maintenance costs; combines the advantages of different fire extinguishing agents and improves the fire extinguishing effect.

[0004] The utility model discloses a multi-agent combined fire extinguishing device for offshore wind power generation, comprising a tank body, wherein a partition inside the tank body divides the inner cavity of the tank body into a first storage cavity and a second storage cavity from top to bottom, a plurality of injection holes are arranged on the partition board, and a baffle film is arranged on the injection holes, a perfluorohexanone fire extinguishing agent is contained in the first storage cavity, an upper storage tank is arranged on the top of the first storage cavity, a solid-gas conversion agent is contained in the upper storage tank, an ignition device is arranged on the upper storage tank corresponding to the solid-gas conversion agent, an air outlet is arranged on the upper storage tank, the air outlet is located inside the first storage cavity, and a baffle film is arranged on the air outlet; an ultrafine dry powder fire extinguishing agent is arranged in the second storage cavity, a powder outlet is arranged at the bottom of the second storage cavity, a baffle film is arranged on the powder outlet, and a nozzle is arranged on the powder outlet.

[0005] Preferably, the air outlet is arranged at the bottom and the side wall of the upper storage tank.

[0006] Preferably, the partition is a downwardly convex curved structure.

[0007] Preferably, the ignition device includes an ignition head arranged in the upper storage tank and an igniter arranged outside the tank body and connected to the ignition head through a conductive lead.

[0008] Preferably, a thermal sensor and a controller are provided outside the tank body, and both the thermal sensor and the igniter are electrically connected to the controller.

[0009] Preferably, the barrier film is an aluminum film. When not impacted, the barrier film can support the solid-gas conversion agent or the fire extinguishing agent to prevent leakage, and when impacted by airflow, the barrier film quickly ruptures to release the internal substances.

[0010] Preferably, a fixed cover is provided on the top of the upper storage tank, and the upper storage tank is fixed to the top of the upper storage cavity through the fixed cover.

[0011] Preferably, a mounting frame is provided on the upper part of the fixed cover for supporting and fixing so that the fire extinguishing device can be stably suspended above the area to be protected.

[0012] Preferably, an auxiliary frame is provided at the lower part of the nozzle, the auxiliary frame comprises a truncated cone-shaped diffusion cylinder which is small at the top and large at the bottom, and the diffusion cylinder and the nozzle are connected by a connecting leg. When the fire extinguishing agent is sprayed from the nozzle, the spray range of the fire extinguishing agent is widened through the diversion of the diffusion cylinder.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. There is no pressure storage in the tank. The non-pressure storage method avoids the problem of fire extinguisher failure caused by pressure release, reduces safety hazards, and saves labor maintenance costs;

[0015] 2. The combination of multiple fire extinguishing agents combines the advantages of perfluorohexanone fire extinguishing agent and ultra-fine dry powder fire extinguishing agent, which can not only quickly cool down, but also efficiently extinguish fires, thus improving the fire extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a multi-agent combined fire extinguishing device for offshore wind power generation of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure at A in the middle;

[0018] In the figure: 1. tank body; 2. partition; 3. injection hole; 4. first storage chamber; 5. second storage chamber; 6. upper storage tank; 7. perfluorohexanone fire extinguishing agent; 8. solid-gas conversion agent; 9. ultrafine dry powder fire extinguishing agent; 10. gas outlet; 11. powder outlet; 12. nozzle; 13. ignition head; 14. fixing cover; 15. mounting bracket; 16. diffusion tube; 17. connecting leg. DETAILED DESCRIPTION

[0019] The present invention will be described clearly and completely below with reference to the accompanying drawings.

[0020] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation for the convenience of expression and do not represent a sequential relationship.

[0021] like Figure 1 As shown, the multi-agent combined fire extinguishing device for offshore wind power generation comprises a tank body 1, wherein a partition 2 inside the tank body 1 divides the inner cavity of the tank body 1 into a first storage cavity 4 and a second storage cavity 5 from top to bottom; Figure 2As shown, the partition 2 is a downwardly convex curved surface structure, a plurality of injection holes 3 are provided on the partition 2, and a baffle film is provided on the injection hole 3. The first storage chamber 4 is filled with perfluorohexanone fire extinguishing agent 7, an upper storage tank 6 is provided on the top of the first storage chamber 4, and a solid-gas conversion agent 8 is contained in the upper storage tank 6. An ignition device is provided on the upper storage tank 6 corresponding to the solid-gas conversion agent 8, and an air outlet 10 is provided on the upper storage tank 6. The air outlet 10 is provided at the bottom and side wall of the upper storage tank 6, the air outlet 10 is located inside the first storage chamber 4, and a baffle film is provided on the air outlet 10; an ultra-fine dry powder fire extinguishing agent 9 is provided in the second storage chamber 5, a powder outlet 11 is provided at the bottom of the second storage chamber 5, a baffle film is provided on the powder outlet 11, and a nozzle 12 is provided on the powder outlet 11.

[0022] The barrier film is an aluminum film.

[0023] The ignition device includes an ignition head 13 disposed in the upper storage tank 6 and an igniter disposed outside the tank body 1 and connected to the ignition head 13 through a conductive lead. A thermal sensor and a controller are disposed outside the tank body 1, and both the thermal sensor and the igniter are electrically connected to the controller.

[0024] A fixing cover 14 is provided on the top of the upper storage tank 6, and the upper storage tank 6 is fixed to the top of the first storage chamber 4 through the fixing cover 14. A mounting frame 15 is provided on the upper part of the fixing cover 14. The fire extinguishing device is fixed to the top of the offshore wind turbine cabin through the mounting frame 15.

[0025] An auxiliary frame is provided at the lower part of the nozzle 12 , and the auxiliary frame includes a truncated cone-shaped diffusion tube 16 which is small at the top and large at the bottom. The diffusion tube 16 and the nozzle 12 are connected by a connecting leg 17 .

[0026] The working process is as follows: when a fire occurs, the thermistor senses the temperature abnormality and transmits the signal to the controller. The controller starts the igniter to make the ignition head 13 ignite the solid-gas conversion agent 8. The solid-gas conversion agent 8 is converted from solid to gas, breaks through the aluminum film of the air outlet 10, and enters the first storage chamber 4. The perfluorohexanone fire extinguishing agent 7 is vaporized by heat. The two gases break through the aluminum film on the injection hole 3 together and enter the second storage chamber 5. The pressure of the second storage chamber 5 increases, and the gas entrains the ultra-fine dry powder fire extinguishing agent 9 to break through the aluminum film of the powder outlet 11, and is ejected from the nozzle 12. After the spray range is expanded by the diffusion tube 16, it is sprayed to the fire inside the generator compartment to extinguish the fire.

Claims

1. A multi-agent combined fire extinguishing device for offshore wind power generation, comprising a tank (1), characterized in that: A partition (2) inside the tank body (1) divides the inner cavity of the tank body (1) into a first storage cavity (4) and a second storage cavity (5) from top to bottom. The partition (2) is provided with a plurality of injection holes (3), and a barrier film is provided on the injection holes (3). The first storage cavity (4) contains a perfluorohexanone fire extinguishing agent (7). An upper storage tank (6) is provided on the top of the first storage cavity (4), and a solid-gas conversion agent (8) is contained in the upper storage tank (6). An ignition device is provided on the upper storage tank (6) corresponding to the solid-gas conversion agent (8). The upper storage tank (6) is provided with an air outlet (10), and the air outlet (10) is located inside the first storage cavity (4). A barrier film is provided on the air outlet (10); an ultrafine dry powder fire extinguishing agent (9) is provided in the second storage cavity (5), and a powder outlet (11) is provided at the bottom of the second storage cavity (5), and a barrier film is provided on the powder outlet (11). A nozzle (12) is provided on the powder outlet (11).

2. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 1 is characterized in that: The gas outlet (10) is arranged at the bottom and the side wall of the upper storage tank (6).

3. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 1 is characterized in that: The partition plate (2) is a downwardly convex curved surface structure.

4. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 1 is characterized in that: The ignition device comprises an ignition head (13) arranged in the upper storage tank (6) and an igniter arranged outside the tank body (1) and connected to the ignition head (13) via a conductive lead.

5. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 4 is characterized in that: A thermal sensor and a controller are arranged outside the tank body (1), and both the thermal sensor and the igniter are electrically connected to the controller.

6. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 1 is characterized in that: The barrier film is an aluminum film.

7. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 1 is characterized in that: A fixed cover (14) is provided on the top of the upper storage tank (6), and the upper storage tank (6) is fixed to the top of the first storage chamber (4) through the fixed cover (14).

8. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 7 is characterized in that: A mounting frame (15) is provided on the upper part of the fixed cover (14).

9. The multi-agent combined fire extinguishing device for offshore wind power generation according to claim 1 is characterized in that: An auxiliary frame is provided at the lower part of the nozzle (12), and the auxiliary frame comprises a truncated cone-shaped diffusion cylinder (16) which is smaller at the top and larger at the bottom. The diffusion cylinder (16) and the nozzle (12) are connected via a connecting leg (17).

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