Double-cavity horizontal fire extinguishing device

Abstract

The utility model relates to the technical field of fire extinguishing devices, in particular to a double-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, the fire extinguishing agent cavity is filled with primary driving gas and a fire extinguishing agent, and the secondary driving tank is filled with secondary driving gas. The fire extinguishing agent tank is welded and fixed in the second-stage driving tank, the spraying assembly is located on the outer side of the second-stage driving tank, a second-stage driving cavity is formed in the second-stage driving tank, the second-stage driving cavity is filled with second-stage driving gas, an inflation valve is installed on the second-stage driving tank, 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 double-chamber horizontal fire extinguishing device. Background Art

[0002] Existing horizontal dry powder fire extinguishers are usually filled with dry powder extinguishing agents and nitrogen gas, so as to form high pressure inside the horizontal dry powder fire extinguishers, so that the dry powder extinguishing agents can be sprayed through the spraying components on the horizontal dry powder fire extinguishers. During spraying, after the high-pressure gas is ejected, 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 phenomena often occurring in the dry powder extinguishing agents at both ends inside the horizontal dry powder fire extinguisher. As a result, 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 agents 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, thus 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 set 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 double-chamber horizontal fire extinguishing device that can effectively reduce the residual rate of the extinguishing agents 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 problems, the technical solution adopted by the present utility model is as follows: A double-chamber horizontal fire extinguishing device includes a horizontal fire extinguishing agent tank and a spraying assembly provided on the fire extinguishing agent tank. A fire extinguishing agent chamber is provided inside the fire extinguishing agent tank, and a primary driving gas and a fire extinguishing agent are filled in the fire extinguishing agent chamber. It further includes a horizontal secondary driving tank. The fire extinguishing agent tank is welded and fixed inside the secondary driving tank such that the spraying assembly is located outside the secondary driving tank. A secondary driving chamber is provided inside the secondary driving tank, and a secondary driving gas is filled in the secondary driving chamber. An inflation valve communicating with the secondary driving chamber is installed on the secondary driving 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 driving chamber, the one-way valves are used to allow the secondary driving gas in the secondary driving chamber to fill into the fire extinguishing agent chamber.

[0006] Further, a connecting pipe is fixedly provided on the fire extinguishing agent tank, and a through hole adapted to the connecting pipe is provided on the secondary driving tank. The connecting pipe passes through the through hole and is welded and fixed to the secondary driving tank. The spraying assembly is installed on the connecting pipe.

[0007] Further, the secondary driving tank includes a first annular tank body and first covers welded and fixed to the left and right ends of the first annular tank body. The through hole is provided on the first annular tank body.

[0008] Further, the inflation valve is provided at the center position of one of the first covers.

[0009] 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. The connecting pipe is provided on the second annular tank body.

[0010] Further, the two one-way valves are respectively provided at the center positions of the two second covers.

[0011] Further, the length of the secondary driving tank is 1.1 - 1.2 times the length of the fire extinguishing agent tank. The left and right ends outside the fire extinguishing agent tank respectively extend to near the left and right ends inside the secondary driving tank, and the distances between the left and right ends outside the fire extinguishing agent tank and the left and right ends inside the secondary driving tank are the same.

[0012] Further, the inner diameter of the secondary driving tank is 1.05 - 1.1 times the outer diameter of the fire extinguishing agent tank. The outer surface of the fire extinguishing agent tank on the side where the spraying assembly is provided is abutted and fixed to the inner surface of one side of the secondary driving tank.

[0013] Further, the fire extinguishing agent is a dry powder fire extinguishing agent, and the primary driving gas is nitrogen.

[0014] Further, the secondary driving gas is nitrogen.

[0015] As described above, a double-chamber horizontal fire extinguishing device provided by the present utility model has the following beneficial effects: on the basis of effectively reducing the residual 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 the fire extinguishing agent tank in the secondary driving tank, even if the secondary driving tank is located outside the fire extinguishing agent tank, in this way, the secondary driving tank 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 amount of the fire extinguishing agent and the primary driving gas. After assembling the fire extinguishing agent tank in the secondary driving tank, the two are directly fixed by welding and hermetically connected, and its overall manufacturing process is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a double-chamber horizontal fire extinguishing device of the present utility model.

[0017] In the figure: 1 - fire extinguishing agent tank; 11 - fire extinguishing agent chamber; 12 - connecting pipe; 13 - second annular tank body; 14 - second cover; 2 - secondary driving tank; 21 - secondary driving chamber; 22 - first annular tank body; 23 - first cover; 3 - spraying assembly; 4 - inflation valve; 5 - one-way valve; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described below through specific embodiments.

[0019] As Figure 1 shown, a double-chamber horizontal fire extinguishing device described in the present utility model includes a horizontal fire extinguishing agent tank 1 and a spraying assembly 3 provided on the fire extinguishing agent tank 1. A fire extinguishing agent chamber 11 is provided in the fire extinguishing agent tank 1, and a primary driving gas and a fire extinguishing agent are filled in the fire extinguishing agent chamber 11. It further includes a horizontal secondary driving tank 2. The fire extinguishing agent tank 1 is welded and fixed in the secondary driving tank 2 and the spraying assembly 3 is located outside the secondary driving tank 2. A secondary driving chamber 21 is provided in the secondary driving tank 2, and a secondary driving gas is filled in the secondary driving chamber 21. An inflation valve 4 communicating with the secondary driving chamber 21 is installed on the secondary driving tank 2. 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 21, the one-way valves 5 are used to allow the secondary driving gas in the secondary driving chamber 21 to be filled into the fire extinguishing agent chamber 11.

[0020] Correspondingly, communication ports for communicating the fire extinguishing agent chamber 11 and the secondary driving chamber 21 are provided at both ends of the fire extinguishing agent tank 1, and the one-way valves 5 are installed at the communication ports.

[0021] By providing the inflation valve 4, it is convenient to fill the secondary drive chamber 21 with the secondary drive gas. In the initial state, the pressure in the fire extinguishing agent chamber 11 is not less than the pressure in the secondary drive chamber 21. At the same time, by providing the one-way valve 5, it can effectively prevent the fire extinguishing agent and the primary drive gas in the fire extinguishing agent chamber 11 from blowing into the secondary drive chamber 21. By filling the primary drive gas in the fire extinguishing agent chamber 11, a high pressure is formed in the fire extinguishing agent chamber 11. When discharging through the discharge assembly 3, it is convenient to discharge the fire extinguishing agent in the fire extinguishing agent chamber 11. During the discharge process of the discharge assembly 3, 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 drive chamber 21, thus, the secondary drive gas in the secondary drive chamber 21 can be blown into both ends of the fire extinguishing agent chamber 11 through the two one-way valves 5 respectively, thereby well supplementing the pressure in the fire extinguishing agent chamber 11. At the same time, it can well agitate 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 be better discharged through the discharge assembly 3, 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 more cleanly, and well ensuring the overall fire extinguishing effect of the horizontal fire extinguishing device.

[0022] By the combined use of the fire extinguishing agent chamber 11 and the secondary drive chamber 21, the overall horizontal fire extinguishing device has a double-chamber structure. By arranging the fire extinguishing agent tank 1 in the secondary drive tank 2, that is, making the secondary drive tank 2 located outside the fire extinguishing agent tank 1. In this way, the secondary drive tank 2 will not occupy part of the space in the fire extinguishing agent chamber 11, ensuring the utilization rate of the space in the fire extinguishing agent chamber 11, and thus ensuring the filling amount of the fire extinguishing agent and the primary drive gas. After assembling the fire extinguishing agent tank 1 in the secondary drive tank 2, the two are directly fixed by welding and sealed. Its overall manufacturing process is simpler and more convenient.

[0023] Specifically, a connecting pipe 12 is fixedly provided on the fire extinguishing agent tank 1, and a through hole adapted to the connecting pipe 12 is provided on the secondary drive tank 2. The connecting pipe 12 passes through the through hole and is fixedly welded to the secondary drive tank 2 to ensure the sealing performance after welding between the two. The discharge assembly 3 is installed on the connecting pipe 12.

[0024] The secondary driving tank 2 includes a first annular tank body 22 and first covers 23 welded and fixed to the left and right ends of the first annular tank body 22. The through hole is provided on the first annular tank body 22. During manufacturing, after the fire extinguishing agent tank 1 is assembled inside the first annular tank body 22 and the connecting pipe 12 passes through the through hole, then the fire extinguishing agent tank 1 and the first annular tank body 22 are welded and fixed. Finally, the two first covers 23 are respectively welded and fixed to the left and right ends of the first annular tank body 22. In addition, the inflation valve 4 is provided at the center position of one of the first covers 23.

[0025] The fire extinguishing agent tank 1 includes a second annular tank body 13 and second covers 14 welded and fixed to the left and right ends of the second annular tank body 13. The connecting pipe 12 is provided on the second annular tank body 13. The two one-way valves 5 are respectively provided at the center positions of the two second covers 14.

[0026] The length of the secondary driving tank 2 is 1.1 - 1.2 times the length of the fire extinguishing agent tank 1. The left and right ends outside the fire extinguishing agent tank 1 respectively extend to near the left and right ends inside the secondary driving tank 2, and the distances between the left and right ends outside the fire extinguishing agent tank 1 and the left and right ends inside the secondary driving tank 2 are the same. In this way, it can better ensure that the volumes of the cavities formed between the left and right ends outside the fire extinguishing agent tank 1 and the left and right ends inside the secondary driving tank 2 are the same, that is, the filling amounts of the secondary driving gas at the left and right ends outside the fire extinguishing agent tank 1 are the same, so as to better ensure the uniformity of the pressure supplement at the left and right ends inside the fire extinguishing agent cavity 11. The inner diameter of the secondary driving tank 2 is 1.05 - 1.1 times the outer diameter of the fire extinguishing agent tank 1. The outer surface of the fire extinguishing agent tank 1 on the side where the spraying assembly 3 is provided abuts and is fixed to the inner surface of one side of the secondary driving tank 2, so that the fire extinguishing agent tank 1 can be more stably welded and fixed inside the secondary driving tank 2.

[0027] 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.

[0028] 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 double-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 a secondary drive tank in a horizontal shape. The fire extinguishing agent tank is welded and fixed inside the secondary drive tank, and the spraying assembly is located outside the secondary drive tank. A secondary drive chamber is provided inside 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 valves are used to allow the secondary drive gas in the secondary drive chamber to fill into the fire extinguishing agent chamber.

2. The double-chamber horizontal fire extinguishing device according to claim 1, wherein: A connecting pipe is fixedly provided on the fire extinguishing agent tank. A through hole adapted to the connecting pipe is provided on the secondary drive tank. The connecting pipe passes through the through hole and is welded and fixed to the secondary drive tank. The spraying assembly is installed on the connecting pipe.

3. The double-chamber horizontal fire extinguishing device according to claim 2, characterized in that: The secondary drive tank includes a first annular tank body and first covers welded and fixed to the left and right ends of the first annular tank body. The through hole is provided on the first annular tank body.

4. A double-chamber horizontal fire extinguishing device according to claim 3, characterized in that: The inflation valve is provided at the central position of one of the first covers.

5. The double-chamber horizontal fire extinguishing device according to claim 2, characterized in that: 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 connecting pipe is provided on the second annular tank body.

6. The dual-chamber horizontal fire extinguishing device according to claim 5, characterized in that: The two one-way valves are respectively provided at the central positions of the two second covers.

7. The double-chamber horizontal fire extinguishing device according to claim 1, wherein: The length of the secondary drive tank is 1.1 - 1.2 times the length of the fire extinguishing agent tank. The left and right ends outside the fire extinguishing agent tank respectively extend to be close to the left and right ends inside the secondary drive tank, and the distances between the left and right ends outside the fire extinguishing agent tank and the left and right ends inside the secondary drive tank are consistent.

8. A double-chamber horizontal fire extinguishing device according to claim 1, characterized in that: The inner diameter of the secondary drive tank is 1.05 - 1.1 times the outer diameter of the fire extinguishing agent tank. The outer surface of the fire extinguishing agent tank on the side where the spraying assembly is provided abuts and is fixed to the inner surface of one side of the secondary drive tank.

9. The double-chamber horizontal fire extinguishing device according to claim 1, wherein: The fire extinguishing agent is a dry powder fire extinguishing agent, and the primary drive gas is nitrogen.

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

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