Integrated two-fluid water mist fire extinguishing device

Abstract

The invention relates to an integrated two-fluid water mist fire extinguishing device, and relates to the field of fire fighting devices. The fire extinguishing device comprises a box body, a gas storage tank and a liquid storage tank are detachably arranged in the box body, the gas storage tank is connected with the liquid storage tank through a pressure pipe, the gas storage tank is provided with a control valve set used for controlling connection and disconnection of the pressure pipe, the liquid storage tank is connected with a liquid outlet pipe and a gas outlet pipe, the liquid outlet pipe is used for circulating a fire extinguishing agent, and the gas outlet pipe is used for circulating fire extinguishing gas. And a mixing nozzle is connected between the liquid outlet pipe and the gas outlet pipe. The space occupation amount of the fire extinguishing device in the energy storage container can be reduced.

Description

Technical Field

[0001] This application relates to the field of fire-fighting devices, and particularly to an integrated dual-fluid fine water mist fire extinguishing device. Background Art

[0002] An energy storage container uses a container as a good carrier to better provide uninterrupted power for various devices. The energy storage container mainly includes two parts, mainly an electrical compartment and a battery compartment, and there are different accessories in these two parts, such as a container-type machine room, battery packs, a battery management system, an energy storage inverter, and an auxiliary control system, etc.

[0003] Since there are power devices such as battery packs and control systems in the energy storage container, fires are likely to occur. To improve the use safety of the energy storage container, a fire-fighting system for extinguishing fires is usually provided in the energy storage container, such as a water fire-fighting system, an aerosol fire extinguishing system, a gas fire extinguishing system, and a gas-liquid hybrid fire-fighting system, etc.

[0004] Among them, the nozzle in the gas-liquid hybrid fire-fighting device needs to be connected to a gas supply pipe and a liquid supply pipe. The gas supply pipe is connected to a gas source through an air compressor, and the liquid supply pipe is connected to a fire extinguishing agent source through a water pump device, making the entire fire extinguishing device too large in volume. Since the usable space for installing fire-fighting equipment in the energy storage container is limited, the volume of the fire extinguishing device should not be too large. Summary of the Invention

[0005] In order to reduce the space occupied by the fire extinguishing device in the energy storage container, this application provides an integrated dual-fluid fine water mist fire extinguishing device.

[0006] An integrated dual-fluid fine water mist fire extinguishing device provided by this application adopts the following technical solution: An integrated dual-fluid fine water mist fire extinguishing device includes a box body. A gas storage tank and a liquid storage tank are detachably arranged in the box body. The gas storage tank is connected to the liquid storage tank through a pressure pipe. A control valve group for controlling the on-off of the pressure pipe is arranged on the gas storage tank. An outlet liquid pipe and an outlet gas pipe are connected to the liquid storage tank. The outlet liquid pipe is used for circulating the fire extinguishing agent, and the outlet gas pipe is used for circulating the fire extinguishing gas. A mixing nozzle is connected between the outlet liquid pipe and the outlet gas pipe.

[0007] By adopting the above technical solution, the gas storage tank and the liquid storage tank are integrated in the same box body, which facilitates the transportation and installation of the fire extinguishing device and is conducive to improving the flexibility of use of the device. The operator opens the control valve group, and the fire extinguishing gas in the gas storage tank flows through the pressure pipe to the liquid storage tank under the action of pressure, so that the pressure in the liquid storage tank increases. Under the action of pressure, the fire extinguishing gas in the liquid storage tank flows out through the air outlet pipe, and the fire extinguishing agent in the liquid storage tank flows out through the liquid outlet pipe. The fire extinguishing gas and the fire extinguishing agent are mixed and ejected in the mixing nozzle to achieve the fire extinguishing effect. This process does not require the participation of equipment such as air compressors and water pump groups, reducing the space occupied by the fire extinguishing device in the energy storage container.

[0008] Optionally, a dual-channel solenoid valve is provided between the liquid outlet pipe and the air outlet pipe, and the dual-channel solenoid valve can control the simultaneous opening and closing of the liquid outlet pipe and the air outlet pipe.

[0009] By adopting the above technical solution, the operator can control the simultaneous opening and closing of the liquid outlet pipe and the air outlet pipe through the dual-channel solenoid valve to achieve the effect of multiple starts and stops of the device.

[0010] Optionally, the control valve group includes a first container valve installed on the gas storage tank, the pressure pipe is connected to the first container valve, and a pressure reducing valve is connected in series on the pressure pipe.

[0011] By adopting the above technical solution, the operator controls the on-off of the pressure pipe through the first container valve and the control valve, thereby controlling the spraying of the mixing nozzle. The pressure reducing valve is set to control the pressure of the fire extinguishing gas entering the liquid storage tank within a reasonable range and can adjust the spraying amount of the mixing nozzle.

[0012] Optionally, a second container valve is connected to the liquid storage tank. An air pipe joint for connecting the air outlet pipe and a liquid pipe joint for connecting the liquid outlet pipe are provided on the second container valve. Both the air pipe joint and the liquid pipe joint are communicated with the inside of the liquid storage tank. One end of the second container valve facing the inside of the liquid storage tank is connected with a siphon pipe communicated with the liquid pipe joint, and the siphon pipe extends to the bottom of the liquid storage tank.

[0013] By adopting the above technical solution, the second container valve is used to control whether the air pipe joint and the liquid pipe joint are communicated with the inside of the liquid storage tank. When the fire extinguishing gas in the gas storage tank enters the liquid storage tank, the pressure in the liquid storage tank increases. Under the action of the pressure, the fire extinguishing agent flows to the liquid outlet pipe through the siphon pipe, and part of the fire extinguishing gas flows to the air outlet pipe. The fire extinguishing gas and the fire extinguishing agent are mixed in the mixing nozzle and ejected in the form of water mist.

[0014] Optionally, a safety valve is provided on the second container valve.

[0015] By adopting the above technical solution, a safety valve is provided for pressure protection of the liquid storage tank. When the pressure in the liquid storage tank is too high, the safety valve relieves pressure to keep the pressure value in the liquid storage tank within a safe range.

[0016] Optionally, a liquid level gauge for monitoring the water level inside itself is provided on the liquid storage tank.

[0017] By adopting the above technical solution, setting the liquid level gauge facilitates the operator to monitor the remaining amount of the fire extinguishing agent in the liquid storage tank.

[0018] Optionally, the air inlet on the mixing nozzle is connected to the outlet pipe, the liquid inlet on the mixing nozzle is connected to the liquid outlet pipe, a plug block is plugged at the nozzle position of the mixing nozzle, and a glass bulb for supporting the plug block is provided on the mixing nozzle.

[0019] By adopting the above technical solution, the glass bulb on the mixing nozzle supports the plug block, thereby blocking the nozzle of the mixing nozzle. When a fire breaks out in the area where the mixing nozzle is located, causing the temperature to rise, the liquid in the glass bulb expands due to heat, causing the glass bulb to rupture. The rupture of the glass bulb releases the supporting effect on the plug block, and the plug block is pushed out under the pressure of the gas-liquid mixture in the mixing nozzle, thus starting to extinguish the fire.

[0020] Optionally, a controller is provided on the box body. The controller is electrically connected to a composite detector, and a wire electrically connected to the controller is connected to the glass bulb.

[0021] By adopting the above technical solution, by setting the wire, on the one hand, the operator can actively control the increase of the wire current to cause the glass bulb to rupture due to heat, thereby realizing the situation of active fire extinguishing. On the other hand, when the glass bulb ruptures due to the increase in the ambient temperature, the wire through which a small current originally flows will be open-circuited. Since the wire is electrically connected to the controller, the controller can detect the burst signal of the corresponding glass bulb.

[0022] Optionally, a through hole for the outlet pipe and the liquid outlet pipe to pass through is provided on the box body. A screw sleeve is inserted into the through hole in the box body. A limiting ring is provided at one end of the screw sleeve, and the other end of the screw sleeve passes through the outside of the box body. A plurality of elastic pieces are arranged around the circumference of the screw sleeve at the end where the screw sleeve passes through the outside of the box body. The screw sleeve is externally threaded and connected to a nut. A convex ring is provided at one end of the nut, and the convex ring can push the plurality of elastic pieces to close.

[0023] By adopting the above technical solution, the operator inserts the screw sleeve into the through hole from inside the box body, then the operator threadedly sleeves the nut at the end where the screw sleeve passes through the outside of the box body. The operator inserts the pipeline into the box body from the screw sleeve, and finally the operator rotates the nut to make the convex ring push the elastic pieces to close with each other, thereby pressing the pipeline tightly to fix the pipeline on the box body.

[0024] Optionally, an installation groove is formed in the inner wall of the screw sleeve, a sealing sleeve is inserted into the installation groove, and a sealing gasket for pressing against the box body is arranged between the limiting ring and the nut.

[0025] By adopting the above technical solution, when the operator tightens the nut, the elastic piece presses the sealing sleeve against the pipeline, and one end of the sealing sleeve abuts against the groove wall of the installation groove under the push of the nut. At the same time, the nut presses the sealing gasket against the box body, achieving the sealing effect between the hole wall of the through hole and the pipeline, and reducing the situation that water and dust enter the box body through the through hole.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the operator opens the control valve group, the fire extinguishing gas in the gas storage tank flows through the pressure pipe to the liquid storage tank under the action of pressure, increasing the pressure in the liquid storage tank. Under the action of pressure, the fire extinguishing gas in the liquid storage tank flows out through the air outlet pipe, and the fire extinguishing agent in the liquid storage tank flows out through the liquid outlet pipe. The fire extinguishing gas and the fire extinguishing agent are mixed and ejected in the mixing nozzle to achieve the fire extinguishing effect. This process does not require the use of equipment such as air compressors and water pump groups, reducing the space occupied by the fire extinguishing device in the energy storage container. 2. Integrating the gas storage tank and the liquid storage tank in the same box body facilitates the transportation and installation of the fire extinguishing device, which is beneficial to improving the flexibility of use of the device. 3. A glass bulb is arranged on the mixing nozzle, so that the mixing nozzle automatically opens in a high-temperature environment to achieve fire extinguishing. 4. A wire is connected to the glass bulb. On the one hand, the operator can actively control the increase of the wire current, causing the glass bulb to heat up and burst, thereby achieving the situation of active fire extinguishing. On the other hand, when the glass bulb bursts due to the increase in the ambient temperature, the wire through which a small current originally flowed will be open-circuited. Since the wire is electrically connected to the controller, the controller can detect the bursting signal of the corresponding glass bulb. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 is a schematic diagram of the structure for showing the gas storage tank and the liquid storage tank in an embodiment of the present application.

[0029] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0030] Figure 4 is a schematic diagram of the structure for showing the mixing nozzle in an embodiment of the present application.

[0031] Description of reference numerals: 1. Box body; 12. Box door; 13. Controller; 2. Gas storage tank; 21. Liquid storage tank; 22. Pressure pipe; 23. Connector; 24. Gas outlet pipe; 25. Liquid outlet pipe; 26. Liquid level gauge; 3. Control valve group; 31. First container valve; 32. Pressure reducing valve; 33. Dual-channel solenoid valve; 4. Second container valve; 42. Gas pipe joint; 43. Liquid pipe joint; 44. Siphon tube; 45. Safety valve; 5. Through hole; 51. Sleeve; 52. Limit ring; 53. Nut; 54. Elastic sheet; 55. Convex ring; 56. Installation groove; 57. Sealing sleeve; 58. Sealing gasket; 6. Mixing spray head; 61. Air inlet; 62. Liquid inlet; 63. Spray nozzle; 64. Plug; 65. Bracket; 66. Glass bulb; 67. Conducting wire. Embodiment

[0032] The following will further describe the present application in detail with reference to the Figures 1-4 accompanying drawings.

[0033] An integrated dual-fluid fine water mist fire extinguishing device is disclosed in an embodiment of the present application. As shown in Figure 1 and Figure 2 , the integrated dual-fluid fine water mist fire extinguishing device includes a box body 1, and the box body 1 can be in various forms. In the embodiment of the present application, the box body 1 is in a cuboid shape. An installation opening is provided on the box body 1, and a box door 12 for sealing the installation opening is hinged on the box body 1. A gas storage tank 2 and a liquid storage tank 21 are detachably arranged in the box body 1. The gas storage tank 2 and the liquid storage tank 21 can be fixedly connected to the inside of the box body 1 through a hoop and bolts, or can be installed in the box body 1 through a strap. The gas storage tank 2 is connected to the liquid storage tank 21 through a pressure pipe 22, and a control valve group 3 for controlling the on-off of the pressure pipe 22 is provided on the gas storage tank 2. An air outlet pipe 24 and a liquid outlet pipe 25 are connected to the liquid storage tank 21, and a dual-channel solenoid valve 33 is arranged between the air outlet pipe 24 and the liquid outlet pipe 25. The dual-channel solenoid valve 33 is used to control the on-off of the air outlet pipe 24 and the liquid outlet pipe 25 simultaneously. The air outlet pipe 24 is used to discharge the fire extinguishing gas in the upper layer of the liquid storage tank 21, and the liquid outlet pipe 25 is used to discharge the fire extinguishing agent in the lower layer of the liquid storage tank 21. A mixing spray head 6 is connected between the air outlet pipe 24 and the liquid outlet pipe 25. The operator can control the opening and closing of the dual-channel solenoid valve 33, and thus control the mixing spray head 6 to spray multiple times.

[0034] The control valve group 3 includes a first container valve 31 installed at the opening position of the gas storage tank 2. A pressure reducing valve 32 is connected to the first container valve 31. The pressure reducing valve 32 is connected to the liquid storage tank 21 through the pressure pipe 22. A connector 23 for connecting the pressure pipe 22 is provided at the upper end of the liquid storage tank 21. The first container valve 31 is used to control the opening and closing of the opening of the gas storage tank 2. The pressure reducing valve 32 is used to reduce the high-pressure gas in the gas storage tank 2 to a preset pressure value, and then flow to the liquid storage tank 21 through the pressure pipe 22. A liquid level gauge 26 for monitoring the liquid level of the fire extinguishing agent is provided on the liquid storage tank 21.

[0035] A second container valve 4 is installed at the opening position of the liquid storage tank 21. A gas pipe joint 42 for connecting the gas outlet pipe 24 and a liquid pipe joint 43 for connecting the liquid outlet pipe 25 are provided on the second container valve 4. One end of the second container valve 4 facing the inside of the liquid storage tank 21 is provided with an opening communicating with the gas pipe joint 42, and the upper-layer fire extinguishing gas in the liquid storage tank 21 can flow through the opening corresponding to the gas pipe joint 42 to the gas outlet pipe 24. One end of the second container valve 4 facing the inside of the liquid storage tank 21 is also connected with a siphon tube 44 communicating with the liquid pipe joint 43. The siphon tube 44 extends into the bottom of the liquid storage tank 21, and the liquid in the liquid storage tank 21 flows through the siphon tube 44 to the liquid outlet pipe 25. A safety valve 45 is provided on the second container valve 4. When the pressure in the liquid outlet pipe 25 is greater than the set value of the safety valve 45, the safety valve 45 opens to relieve pressure, thereby achieving the pressure protection effect on the liquid storage tank 21.

[0036] As Figure 3 , a through hole 5 for the gas outlet pipe 24 and the liquid outlet pipe 25 to pass through is provided at the top end of the box body 1. A screw sleeve 51 is inserted into the through hole 5. The screw sleeve 51 can be sleeved on the corresponding pipe. One end of the screw sleeve 51 is fixedly connected with a limiting ring 52, and the limiting ring 52 is used to limit the screw sleeve 51 from completely passing through the corresponding through hole 5. One end of the screw sleeve 51 passing through the through hole 5 is threadedly connected with a nut 53, and the nut 53 is used to fixedly connect the screw sleeve 51 in the through hole 5. A plurality of elastic pieces 54 are integrally formed at one end of the screw sleeve 51 away from the limiting ring 52. The plurality of elastic pieces 54 are evenly arranged along the circumferential direction of the screw sleeve 51. One end of the nut 53 is fixedly connected with a convex ring 55, and the convex ring 55 is used to push the elastic pieces 54 closer to each other.

[0037] An installation groove 56 is formed in one end of the inner wall of the screw sleeve 51 away from the limiting ring 52. A sealing sleeve 57 is inserted into the installation groove 56. The sealing sleeve 57 is used to be sleeved on the corresponding pipe. One end of the sealing sleeve 57 away from the limiting ring 52 extends between the plurality of elastic pieces 54. A sealing gasket 58 is sleeved on the screw sleeve 51 on the side where the nut 53 faces the top wall of the box body 1. The operator tightens the nut 53, so that the sealing gasket 58 is pressed against the outer wall of the box body 1, realizing the sealing effect between the screw sleeve 51 and the hole wall of the through hole 5. During the process of tightening the nut 53, the convex ring 55 gradually pushes the elastic pieces 54 to close together and presses the sealing sleeve 57 against the pipe. As the nut 53 is gradually tightened, one end of the sealing sleeve 57 is gradually pressed against the groove wall of the installation groove 56, realizing the sealing effect between the screw sleeve 51 and the pipe. In this way, the situation that dust and water flow into the box body 1 from the through hole 5 is reduced.

[0038] As Figure 1 and Figure 4, an air inlet 61 for connecting the air outlet pipe 24 and a liquid inlet 62 for connecting the liquid outlet pipe 25 are provided on the mixing nozzle 6. A plug 64 is blocked in the nozzle 63 of the mixing nozzle 6. A bracket 65 is provided near the nozzle 63 of the mixing nozzle 6. A glass bulb 66 is provided between the bracket 65 and the plug 64. The glass bulb 66 is filled with a fluid medium that expands when heated. When the temperature rises, the fluid medium expands and causes the glass bulb 66 to rupture, thereby releasing the supporting effect on the plug 64. The plug 64 can be pushed out under the pressure in the mixing nozzle 6, so that the mixing nozzle 6 can extinguish the fire in the space where it is located. Two wires 67 are also connected to the glass bulb 66. The two wires 67 are conducted through the glass bulb 66 and a micro-current flows through them. When the operator needs to control a certain mixing nozzle 6 to work, the operator increases the current on the wire 67, so that the temperature of the fluid medium in the glass bulb 66 rises and the glass bulb 66 is squeezed and broken, realizing the opening effect of the mixing nozzle 6.

[0039] A controller 13 is provided on the box body 1. The controller 13 is for manual control or automatic control. The two wires 67 on the glass bulb 66 are both electrically connected to the controller 13. The first container valve 31, the second container valve 4, the double-channel solenoid valve 33 and the liquid level gauge 26 are also electrically connected to the controller 13. The operator can control the opening and closing of the double-channel solenoid valve 33 through the controller 13 or the controller 13 receives the opening signal of the mixing nozzle 6, emits an alarm signal and automatically opens the first container valve 31, the second container valve 4 and the double-channel solenoid valve 33. In addition, the controller 13 can display the value of the liquid level gauge 26, which is convenient for the operator to understand the liquid level situation in the liquid storage tank 21.

[0040] Several composite detectors are also electrically connected to the controller 13. The composite detectors can monitor the hydrogen and carbon monoxide concentrations and temperature conditions in the area where the mixing nozzle 6 is located. When the composite detectors detect that one or more of the hydrogen concentration, carbon monoxide concentration and temperature are abnormal, the composite detectors send an electrical signal to the controller 13. The controller 13 controls the current of the wire 67 to rise until the glass bulb 66 ruptures, realizing the active opening effect of the mixing nozzle 6. The controller 13 can receive the signal of the composite detector, emit an alarm signal and automatically open the mixing nozzle 6, the first container valve 31, the second container valve 4 and the double-channel double solenoid valve 33. After the glass bulb 66 ruptures, the two wires 67 on the glass bulb 66 are open-circuited, and the controller 13 can receive the open-circuit signal, thereby displaying the opening and closing conditions of each mixing nozzle 6.

[0041] The implementation principle of the embodiment of this application is as follows: The operator controls the opening of the dual-channel solenoid valve 33 through the controller 13. The fire extinguishing gas in the gas storage tank 2 flows through the pressure pipe 22 to the liquid storage tank 21 under the action of pressure, causing the pressure in the liquid storage tank 21 to increase. Under the action of pressure, the fire extinguishing gas in the liquid storage tank 21 flows out through the air outlet pipe 24, and the fire extinguishing agent in the liquid storage tank 21 flows out through the liquid outlet pipe 25. The fire extinguishing gas and the fire extinguishing agent are mixed and ejected in the mixing nozzle 6 to achieve the fire extinguishing effect. This process does not require the use of equipment such as an air compressor and a water pump group, thereby reducing the space occupied by the fire extinguishing device in the energy storage container.

[0042] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An integrated dual-fluid water mist fire extinguishing device, characterized in that: The invention comprises a box body (1), wherein a gas storage tank (2) and a liquid storage tank (21) are detachably arranged in the box body (1), wherein the gas storage tank (2) is connected to the liquid storage tank (21) via a pressure pipe (22), wherein the gas storage tank (2) is provided with a control valve group (3) for controlling the on and off of the pressure pipe (22), wherein a liquid outlet pipe (25) and a gas outlet pipe (24) are connected to the liquid storage tank (21), wherein the liquid outlet pipe (25) is used for circulating a fire extinguishing agent, and the gas outlet pipe (24) is used for circulating a fire extinguishing gas, and a mixing nozzle (6) is connected between the liquid outlet pipe (25) and the gas outlet pipe (24).

2. The integrated dual-fluid water mist fire extinguishing device according to claim 1, characterized in that: A dual-channel solenoid valve (33) is provided between the liquid outlet pipe (25) and the air outlet pipe (24), and the dual-channel solenoid valve (33) is capable of controlling the liquid outlet pipe (25) and the air outlet pipe (24) to open and close simultaneously.

3. The integrated dual-fluid water mist fire extinguishing device according to claim 1, characterized in that: The control valve group (3) comprises a first container valve (31) mounted on the gas storage tank (2), the pressure pipe (22) is connected to the first container valve (31), and a pressure reducing valve (32) is connected in series to the pressure pipe (22).

4. The integrated dual-fluid water mist fire extinguishing device according to claim 1, characterized in that: The liquid storage tank (21) is connected to a second container valve (4), and the second container valve (4) is provided with an air pipe joint (42) for connecting to the air outlet pipe (24) and a liquid pipe joint (43) for connecting to the liquid outlet pipe (25); the air pipe joint (42) and the liquid pipe joint (43) are both in communication with the interior of the liquid storage tank (21); one end of the second container valve (4) facing the interior of the liquid storage tank (21) is connected to a siphon pipe (44) in communication with the liquid pipe joint (43); the siphon pipe (44) extends to the bottom of the liquid storage tank (21).

5. The integrated dual-fluid water mist fire extinguishing device according to claim 4, characterized in that: The second container valve (4) is provided with a safety valve (45).

6. The integrated dual-fluid water mist fire extinguishing device according to claim 1, characterized in that: The liquid storage tank (21) is provided with a liquid level meter (26) for monitoring the water level inside the liquid storage tank (21).

7. The integrated dual-fluid water mist fire extinguishing device according to claim 1, characterized in that: The air inlet (61) on the mixing nozzle (6) is connected to the air outlet pipe (24), the liquid inlet (62) on the mixing nozzle (6) is connected to the liquid outlet pipe (25), the nozzle position of the mixing nozzle (6) is blocked by a blocking block (64), and the mixing nozzle (6) is provided with a glass bulb (66) for supporting the blocking block (64).

8. The integrated dual-fluid water mist fire extinguishing device according to claim 7, characterized in that: The box body (1) is provided with a controller (13), the controller (13) is electrically connected to a composite detector, and the glass bulb (66) is connected to a wire (67) electrically connected to the controller (13).

9. The integrated dual-fluid water mist fire extinguishing device according to claim 1, characterized in that: The box body (1) is provided with a through hole (5) for the air outlet pipe (24) and the liquid outlet pipe (25) to pass through. The box body (1) is provided with a screw sleeve (51) in the through hole (5). A limit ring (52) is provided at one end of the screw sleeve (51). The other end of the screw sleeve (51) passes out of the box body (1). A plurality of elastic sheets (54) are provided around the circumferential direction of the screw sleeve (51) at the end of the screw sleeve (51) passing out of the box body (1). A nut (53) is externally threadedly connected to the screw sleeve (51). A convex ring (55) is provided at one end of the nut (53). The convex ring (55) can push the plurality of elastic sheets (54) to close.

10. An integrated dual-fluid water mist fire extinguishing device according to claim 9, characterized in that: The inner wall of the screw sleeve (51) is provided with a mounting groove (56), a sealing sleeve (57) is inserted into the mounting groove (56), and a sealing gasket (58) is provided between the limiting ring (52) and the nut (53) for pressing against the box body (1).

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