Three-cavity horizontal fire extinguishing device

Abstract

The utility model relates to the technical field of fire extinguishing devices, in particular to a three-cavity horizontal fire extinguishing device, which is characterized by comprising a fire extinguishing agent tank, a spraying component arranged on the fire extinguishing agent tank and a secondary driving tank, the fire extinguishing agent tank is internally provided with a fire extinguishing agent cavity, and the fire extinguishing agent cavity is filled with primary driving gas and a fire extinguishing agent; the two secondary driving tanks are welded and fixed outside the two ends of the fire extinguishing agent tank correspondingly, secondary driving cavities are formed in the secondary driving tanks and filled with secondary driving gas, inflation valves are installed on the secondary driving tanks, one-way valves are installed at the two ends of the fire extinguishing agent tank correspondingly, and one-way valves are installed at the two ends of the fire extinguishing agent tank correspondingly. The one-way valve is used for allowing the second-stage driving gas in the second-stage driving cavity to be filled into the fire extinguishing agent cavity. On the basis that the residual rate of fire extinguishing agents at the two ends in the fire extinguishing agent cavity is effectively reduced and the overall fire extinguishing effect is well ensured, the utilization rate of the space in the fire extinguishing agent cavity can be better ensured, and the overall manufacturing process is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing devices, and particularly relates to a three-chamber horizontal fire extinguishing device. Background Art

[0002] Conventionally, a horizontal dry powder fire extinguisher is usually filled with dry powder extinguishing agent and also filled with nitrogen gas to form high pressure inside the horizontal dry powder fire extinguisher, so as to spray the dry powder extinguishing agent through the spraying assembly on the horizontal dry powder fire extinguisher. During spraying, since the high-pressure gas sprays out and the pressure inside the tank drops, in the later stage of spraying, the overall suspension effect of the dry powder inside the horizontal dry powder fire extinguisher is poor, resulting in residual dry powder extinguishing agent often existing at both ends inside the horizontal dry powder fire extinguisher. Thus, the remaining powder rate of the dry powder inside the horizontal dry powder fire extinguisher is relatively high, and it will affect the overall fire extinguishing effect.

[0003] To solve this problem, the utility model patent with the authorization publication number of CN216877694U provides an improved horizontal fire extinguishing device. The improved horizontal fire extinguishing device provided by this utility model patent can effectively reduce the residual rate of the extinguishing agent at both ends inside the extinguishing agent chamber. However, since its secondary drive tank is arranged inside the extinguishing agent tank, it will occupy part of the space of the extinguishing agent chamber and reduce the utilization rate of the space inside the extinguishing agent tank, thereby affecting the filling amount of the extinguishing agent and the primary drive gas. Moreover, when installing the secondary drive tank, a relatively large-sized filling port needs to be processed at one end of the extinguishing agent tank, and a tank cover needs to be made to fixedly install the secondary drive tank, and multiple O-ring seals need to be provided to ensure the sealing performance of the connection. In this way, it will increase the complexity of the overall manufacturing process, so it needs to be further improved. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a three-chamber horizontal fire extinguishing device that can effectively reduce the residual rate of the extinguishing agent at both ends inside the extinguishing agent chamber, ensure the overall fire extinguishing effect well, better ensure the utilization rate of the space inside the extinguishing agent chamber, and has a simpler and more convenient overall manufacturing process.

[0005] To solve the above technical problem, the technical scheme adopted by the utility model is as follows: A three-chamber horizontal fire extinguishing device includes a horizontally arranged extinguishing agent tank and a spraying assembly arranged on the extinguishing agent tank. An extinguishing agent chamber is arranged inside the extinguishing agent tank, and a primary drive gas and an extinguishing agent are filled inside the extinguishing agent chamber. It further includes two secondary drive tanks, which are respectively welded and fixed to the outer sides of both ends of the extinguishing agent tank. A secondary drive chamber is arranged inside the secondary drive tank, and a secondary drive gas is filled inside the secondary drive chamber. An inflation valve communicating with the secondary drive chamber is installed on the secondary drive tank. One-way valves are installed at both ends of the extinguishing agent tank. When the pressure inside the extinguishing agent chamber is less than the pressure inside the secondary drive chamber, the one-way valve is used to allow the secondary drive gas inside the secondary drive chamber to be filled into the extinguishing agent chamber.

[0006] Further, the secondary drive tank includes a first annular tank body and a first cover welded and fixed to one end of the first annular tank body, and the other end of the first annular tank body is welded and fixed to the fire extinguishing agent tank.

[0007] Further, the inflation valve is arranged at the central position of the first cover.

[0008] Further, the fire extinguishing agent tank includes a second annular tank body and second covers welded and fixed to the left and right ends of the second annular tank body, and the spraying assembly is arranged on the second annular tank body.

[0009] Further, two one-way valves are respectively arranged at the central positions of the two second covers.

[0010] Further, the outer diameter of the secondary drive tank is consistent with the outer diameter of the fire extinguishing agent tank, and the central axes of the secondary drive tank and the fire extinguishing agent tank coincide.

[0011] Further, the length of the secondary drive tank is 0.05 - 0.1 times that of the fire extinguishing agent tank.

[0012] Further, the fire extinguishing agent is dry powder fire extinguishing agent, and the primary drive gas is nitrogen.

[0013] Further, the secondary drive gas is nitrogen.

[0014] As can be seen from the above description, a three - chamber horizontal fire extinguishing device provided by the present utility model has the following beneficial effects: on the basis of effectively reducing the residue rate of the fire extinguishing agent at both ends in the fire extinguishing agent chamber and ensuring the overall fire extinguishing effect well, by arranging two secondary drive tanks respectively outside the left and right ends of the fire extinguishing agent tank, in this way, the secondary drive tanks will not occupy part of the space in the fire extinguishing agent chamber, so as to ensure the utilization rate of the space in the fire extinguishing agent chamber, thereby ensuring the filling amounts of the fire extinguishing agent and the primary drive gas. After placing the secondary drive tanks outside the ends of the fire extinguishing agent tank, they are directly fixed and hermetically connected by welding, and its overall manufacturing process is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a three - chamber horizontal fire extinguishing device of the present utility model.

[0016] In the figure: 1 - fire extinguishing agent tank; 11 - fire extinguishing agent chamber; 12 - second annular tank body; 13 - second cover; 2 - spraying assembly; 3 - secondary drive tank; 31 - secondary drive chamber; 32 - first annular tank body; 33 - first cover; 4 - inflation valve; 5 - one - way valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the present utility model through specific embodiments.

[0018] As Figure 1 shown, a three-chamber horizontal fire extinguishing device of the present utility model includes a horizontal fire extinguishing agent tank 1 and a spraying assembly 2 provided on the fire extinguishing agent tank 1. The fire extinguishing agent tank 1 is provided with a fire extinguishing agent chamber 11, and the fire extinguishing agent chamber 11 is filled with a primary driving gas and a fire extinguishing agent. The device further includes two secondary driving tanks 3, which are respectively welded and fixed to the outer ends of the two ends of the fire extinguishing agent tank 1. The secondary driving tank 3 is provided with a secondary driving chamber 31, and the secondary driving chamber 31 is filled with a secondary driving gas. An inflation valve 4 communicating with the secondary driving chamber 31 is installed on the secondary driving tank 3. One-way valves 5 are installed at both ends of the fire extinguishing agent tank 1. When the pressure in the fire extinguishing agent chamber 11 is less than the pressure in the secondary driving chamber 31, the one-way valve 5 is used to allow the secondary driving gas in the secondary driving chamber 31 to be filled into the fire extinguishing agent chamber 11.

[0019] Correspondingly, both ends of the fire extinguishing agent tank 1 are provided with communication ports for communicating the fire extinguishing agent chamber 11 and the secondary driving chamber 31, and the one-way valve 5 is installed at the communication port.

[0020] Through the setting of the inflation valve 4, it is convenient to fill the secondary driving gas into the secondary driving chamber 31. In the initial state, the pressure in the fire extinguishing agent chamber 11 is not less than the pressure in the secondary driving chamber 31. At the same time, through the setting of the one-way valve 5, it can effectively prevent the fire extinguishing agent and the primary driving gas in the fire extinguishing agent chamber 11 from being blown into the secondary driving chamber 31. By filling the primary driving gas in the fire extinguishing agent chamber 11, a high pressure is formed in the fire extinguishing agent chamber 11. When spraying through the spraying assembly 2, it is convenient to make the fire extinguishing agent in the fire extinguishing agent chamber 11 spray out. During the spraying process of the spraying assembly 2, the pressure in the fire extinguishing agent chamber 11 will rapidly decrease. When the pressure in the fire extinguishing agent chamber 11 is less than the pressure in the secondary driving chamber 31, thus, the secondary driving gas in the two secondary driving chambers 31 can be blown into both ends of the fire extinguishing agent chamber 11 through the two one-way valves 5 respectively, so as to well supplement the pressure in the fire extinguishing agent chamber 11, and at the same time, it can well stir the fire extinguishing agent remaining at both ends in the fire extinguishing agent chamber 11, further improving the overall suspension effect of the fire extinguishing agent in the fire extinguishing agent chamber 11, facilitating the fire extinguishing agent to better spray out through the spraying assembly 2, effectively reducing the residual rate of the fire extinguishing agent at both ends in the fire extinguishing agent chamber 11, enabling the fire extinguishing agent in the fire extinguishing agent chamber 11 to be sprayed out more cleanly, and well ensuring the overall fire extinguishing effect of the horizontal fire extinguishing device.

[0021] Through the combined use of the fire extinguishing agent chamber 11 and the two secondary driving chambers 31, the horizontal fire extinguishing device as a whole has a three-chamber structure; by arranging the two secondary driving tanks 3 at the left and right ends outside the fire extinguishing agent tank 1 respectively, in this way, the secondary driving tanks 3 will not occupy part of the space inside the fire extinguishing agent chamber 11, so as to ensure the utilization rate of the space inside the fire extinguishing agent chamber 11, and thus ensure the filling amount of the fire extinguishing agent and the primary driving gas; after placing the secondary driving tank 3 outside the end of the fire extinguishing agent tank 1, the two are directly fixed by welding and sealed, and its overall manufacturing process is simpler and more convenient.

[0022] The secondary driving tank 3 includes a first annular tank body 32 and a first cover 33 welded and fixed to one end of the first annular tank body 32. The other end of the first annular tank body 32 is welded and fixed to the fire extinguishing agent tank 1 and sealed. In addition, the inflation valve 4 is arranged at the center position of the first cover 33.

[0023] The fire extinguishing agent tank 1 includes a second annular tank body 12 and second covers 13 welded and fixed to the left and right ends of the second annular tank body 12. The spraying assembly 2 is arranged on the second annular tank body 12. In addition, the two one-way valves 5 are respectively arranged at the center positions of the two second covers 13.

[0024] In addition, the outer diameter of the secondary driving tank 3 is consistent with the outer diameter of the fire extinguishing agent tank 1, the central axes of the secondary driving tank 3 and the fire extinguishing agent tank 1 coincide, and the length of the secondary driving tank 3 is 0.05 - 0.1 times that of the fire extinguishing agent tank 1.

[0025] Preferably, the fire extinguishing agent is a dry powder fire extinguishing agent, the primary driving gas is nitrogen, and the secondary driving gas is nitrogen.

[0026] The above are only several specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A three-chamber horizontal fire extinguishing device, comprising a horizontal fire extinguishing agent tank and a spraying assembly provided on the fire extinguishing agent tank. A fire extinguishing agent chamber is provided in the fire extinguishing agent tank, and a primary drive gas and a fire extinguishing agent are filled in the fire extinguishing agent chamber. It is characterized in that: It further includes secondary drive tanks. There are two secondary drive tanks, which are respectively welded and fixed to the two ends outside the fire extinguishing agent tank. A secondary drive chamber is provided in the secondary drive tank, and a secondary drive gas is filled in the secondary drive chamber. An inflation valve communicating with the secondary drive chamber is installed on the secondary drive tank. One-way valves are installed at both ends of the fire extinguishing agent tank. When the pressure in the fire extinguishing agent chamber is less than the pressure in the secondary drive chamber, the one-way valve is used to allow the secondary drive gas in the secondary drive chamber to be filled into the fire extinguishing agent chamber.

2. The three-chamber horizontal fire extinguishing device according to claim 1, characterized in that: The secondary drive tank includes a first annular tank body and a first cover welded and fixed to one end of the first annular tank body. The other end of the first annular tank body is welded and fixed to the fire extinguishing agent tank.

3. The three-chamber horizontal fire extinguishing device according to claim 2, characterized in that: The inflation valve is arranged at the central position of the first cover.

4. A three-chamber horizontal fire extinguishing device according to claim 1, wherein: The fire extinguishing agent tank includes a second annular tank body and second covers welded and fixed to the left and right ends of the second annular tank body. The spraying assembly is arranged on the second annular tank body.

5. The three-chamber horizontal fire extinguishing device according to claim 4, wherein: The two one-way valves are respectively arranged at the central positions of the two second covers.

6. The three-chamber horizontal fire extinguishing device according to claim 1, characterized in that: The outer diameter of the secondary drive tank is consistent with the outer diameter of the fire extinguishing agent tank, and the central axes of the secondary drive tank and the fire extinguishing agent tank coincide.

7. The three-chamber horizontal fire extinguishing device according to claim 1, wherein: The length of the secondary drive tank is 0.05 - 0.1 times that of the fire extinguishing agent tank.

8. The three-chamber horizontal fire extinguishing device according to claim 1, characterized in that: The fire extinguishing agent is dry powder fire extinguishing agent, and the primary drive gas is nitrogen.

9. The three-chamber horizontal fire extinguishing device according to claim 1, characterized in that: The secondary drive gas is nitrogen.

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