Container valves and fire extinguishing devices

Abstract

The present invention provides a container valve and a fire extinguishing device, wherein the container valve comprises a valve body and a valve core and a diaphragm in the valve body, the diaphragm is located below the valve core and closes the container valve, the valve core has a bottom capable of destroying the diaphragm, the valve core itself defines a fluid channel, the valve body defines a fluid inlet and a fluid outlet, and the container valve further comprises an actuating device, the actuating device can cause the valve core to descend to destroy the diaphragm, so that the container valve is opened, and the fluid can flow through the fluid channel defined by the valve core and pass through the container valve. The container valve and the fire extinguishing device according to the embodiments of the present invention are simple in structure and easy to operate.

Description

Technical Field

[0001] The present invention relates to the field of fire extinguishing devices, and more particularly to a container valve especially for a suspended fire extinguishing device. Background Art

[0002] The suspended fire extinguishing device generally includes a container and a container valve. The container contains a high-pressure fire extinguishing fluid. The container is closed by a container valve, which opens in response to a control signal to release the high-pressure fire extinguishing fluid to protect a certain space area, such as less than 80m 3 Small space. Summary of the invention

[0003] The purpose of the present invention is to solve or at least alleviate the problems existing in the prior art;

[0004] According to one aspect, the present invention aims to provide a container valve with low flow resistance and improved efficiency of fire extinguishing device use;

[0005] According to another aspect, the present invention aims to provide a container valve with less leakage of high pressure fluid when opened;

[0006] According to another aspect, an object of the present invention is to provide a container valve with a high degree of integration.

[0007] According to an embodiment, a container valve is provided, which includes: a valve body and a valve core and a diaphragm in the valve body, the diaphragm is located below the valve core and closes the container valve, the valve core has a bottom capable of destroying the diaphragm, the valve core itself defines a fluid channel, the valve body defines a fluid inlet and a fluid outlet, and the container valve also includes an actuating device, the actuating device can cause the valve core to descend to destroy the diaphragm, so that the container valve opens and the fluid can flow through the fluid channel defined by the valve core and pass through the container valve.

[0008] According to an embodiment, a fire extinguishing device is provided, in particular a suspended fire extinguishing device, which has a container containing a high-pressure fire extinguishing agent and a container valve according to various embodiments connected to the container.

[0009] The container valve and the fire extinguishing device according to the embodiments of the present invention have simple structures and are easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In addition, similar numbers in the drawings represent similar components, wherein:

[0011] Figure 1A fire extinguishing device including a container valve according to an embodiment of the present invention is shown;

[0012] Figure 2 A front view of a container valve according to an embodiment of the present invention is shown;

[0013] Figure 3 A cross-sectional view showing a container valve according to an embodiment of the present invention; and

[0014] Figure 4 for Figure 3 A partial enlarged view of the middle area. DETAILED DESCRIPTION

[0015] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0016] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0017] like Figure 1 As shown, the fire extinguishing device, especially the suspended fire extinguishing device, comprises a container 2 containing high-pressure fire extinguishing fluid and a container valve 1 connected to the container 2. The container valve 1 opens in response to a control signal, thereby releasing the high-pressure fire extinguishing fluid in the container 2 to deal with indoor fire.

[0018] Figure 2 As can be seen in FIG. 1 , the container valve according to the embodiment includes a container valve body 91, an actuating device 93, a signal feedback device 94 and a nozzle 92. More specifically, referring to Figure 3 and Figure 4 , the container valve includes: a valve body 10 and a valve core 20 and a diaphragm 62 in the valve body 10, the diaphragm 62 is located below the valve core 20 and closes the container valve, the valve core 20 has a bottom that can destroy the diaphragm 62, and the valve core itself defines a fluid channel A. The valve body defines a fluid inlet 11 and a fluid outlet 12. The fluid inlet 11 can be directly or indirectly connected to the upstream container 2, and the fluid outlet 12 can be directly or indirectly connected to the nozzle 70. The container valve also includes an actuating device 93, which can cause the valve core 20 to descend to destroy the diaphragm 62, so that the container valve is opened, and the high-pressure fire extinguishing agent fluid from the container can flow through the fluid channel A defined by the valve core 20 and pass through the container valve.

[0019] In some embodiments, the valve core 20 defines a direct flow channel A. In further embodiments, the fluid inlet 11, the fluid outlet 12 of the valve body 10 and the fluid channel A of the valve core are in the same straight line. In other words, the fluid inlet 11, the fluid outlet 12 and the fluid channel A of the valve core are aligned, more preferably, aligned in the vertical direction, thereby jointly constituting a direct flow channel that runs through the container valve. The design of the direct flow channel is conducive to the discharge of the fire extinguishing agent, making it easy for the fire extinguishing device to achieve the desired filling density and improving the fire extinguishing effect of the fire extinguishing device.

[0020] For the actuator 93, although the actuator structure of the electromagnetic driver 40 controlling the needle valve 41 is used in this example, in alternative embodiments, various actuators known in the art can be selected. For example, on the one hand, the actuator can be an actuator that controls the needle puncture of the diaphragm by means of an electromagnetic driver or the like. On the other hand, it can be any actuator that can drive the valve core 20 to descend, such as a motor, etc., and it can be connected to the valve core 20 through a mechanical structure to drive the valve core 20 to descend. On the other hand, the actuator 93 can be configured to remove the supporting force on the valve core and make the valve core 20 descend due to gravity. For example, the actuator 93 can be connected to the boss supporting the valve core and withdraw the boss to make the valve core 20 descend.

[0021] In some embodiments, a control chamber C is provided between the valve core 20 and the valve body 10. Figure 4 ), the control chamber C may contain a high-pressure fluid, for example, the high-pressure fluid may come from a container, enter the fluid channel A of the valve core 20 and enter the control chamber C through the through hole 22 on the wall of the valve core 20. The through hole 22 connects the control chamber C with the fluid channel A of the valve core. The high-pressure fluid in the control chamber C acts on the valve core 20 to apply an upward force to the valve core 20 to keep the valve core in place, in other words, to keep its force balanced. In such an embodiment, the needle valve 41 is operable to discharge the high-pressure fluid in the control chamber C, thereby removing the upward force applied by the high-pressure fluid to the valve core 20, causing the valve core 20 to lose balance and fall. When the valve core 20 falls, it will destroy the diaphragm 62, so that the container valve is opened.

[0022] In the non-limiting embodiment shown in the figure, the actuating device 93 is a needle valve 41 controlled by an electromagnetic driver 40, and the valve core of the needle valve 41 moves from the through hole of the side wall of the valve body 10 into the control chamber C in response to the electromagnetic driver 40, so as to discharge the high-pressure fluid in the control chamber C. It should be understood that those skilled in the art can also easily conceive of using other forms of actuating devices to discharge the fluid in the control chamber C, so as to make the valve core 20 lose balance and fall, and these methods should also be included in the scope of the present application.

[0023] In some embodiments, the valve body 10 has a boss 15. Before the container valve is actuated, that is, before the valve core is not lowered, the boss 15 is located immediately below the through hole 22 of the valve body 10. When the container valve is actuated, the through hole 22 slightly descends with the valve core 20 and is blocked by the boss 15 of the valve body 10, thereby slowing down the leakage of the fire extinguishing agent. When the through hole 22 passes through the sealing ring 82 with the valve core 20, the through hole 22 is no longer connected to the control chamber C, thereby avoiding the continuous leakage of the fire extinguishing agent fluid through the through hole 22 after the container valve is opened, thereby ensuring the utilization rate of the fire extinguishing agent fluid.

[0024] In some embodiments, the valve core 20 has a flange 24 on the outside of the top. Figure 4 ), the high-pressure fluid in the control chamber C acts on the bottom of the flange 24 to apply an upward force to the valve core 20. In some embodiments, a spring 30 is also provided in the control chamber C to abut between the flange 24 of the valve core and the boss 15 of the valve body. The spring 30 applies an upward force to the valve core 20 to help keep the valve core 20 balanced. In addition, the spring 30 can also be used to control the degree of descent of the valve core 20.

[0025] In some embodiments, the valve body 10 defines a cylindrical cavity, the valve core 20 is substantially cylindrical and coaxially arranged in the cylindrical cavity of the valve body 10, a circular ring control chamber C is defined between the valve core 20 and the valve body, and the inner side of the valve core 20 defines a fluid channel A. This design ensures that the cross-sectional area of ​​the fluid channel A of the valve core 20 is close to the valve body 10, so the entire container valve does not have a necking, further reducing the flow resistance of the container valve. This design ensures that before the diaphragm and the nozzle are installed, the container valve is basically a straight and non-neck pipeline, ensuring that the container 2 can be easily filled to the desired filling density. In some embodiments, the bottom of the valve core 20 defines a spike portion, for example, for a cylindrical valve core 20, its bottom can be beveled to form a tip 23. In alternative embodiments, other forms of spike portions can also be selected to ensure that the diaphragm 62 can be smoothly destroyed when the valve core descends.

[0026] In some embodiments, to ensure the sealing of the control chamber C, a seal may be provided between the valve core 20 and the valve body 10 at the upper and lower parts of the sealing chamber C. Specifically, in some embodiments, the flange 24 of the valve core 20 may define a first sealing ring groove 21, and the first sealing ring 81 may be disposed between the valve core 20 and the valve body 10 in the first sealing ring groove 21. In addition, the boss 15 of the valve body may have a second sealing ring groove 16, and the second sealing ring 82 may be disposed between the valve core 20 and the valve body 10 in the second sealing ring groove 16.

[0027] In some embodiments, the container valve further comprises a diaphragm clamp 60, which is mounted to the valve body 10 and clamps the fixed diaphragm 62. In some embodiments, the diaphragm clamp 60 may be annular, and after the diaphragm 62 is destroyed, the fire extinguishing fluid may pass through the diaphragm clamp 60 from its central opening. In some embodiments, a central hole nut may be selected as the diaphragm clamp 60. In addition, the diaphragm clamp 60 may include a through hole 61 on the side wall, and the through hole 61 is connected to the fluid pressure feedback device 50 connected to the valve body 10. The fluid pressure feedback device 50 can monitor the gas pressure downstream of the diaphragm 62 to know whether the container valve is open. In addition, in some embodiments, the container valve further comprises a spray joint or nozzle 70, which is mounted to the fluid outlet 12 of the valve body 10. In this embodiment, the nozzle 70 has a plurality of openings 71 along the circumference, such as horizontally oriented openings. On the other hand, the nozzle 70 can be integrated with the diaphragm clamp 60 or independent of the diaphragm clamp 60. Since the nozzle 70 is exposed outside the valve body 10, it is desirable to reduce the impact on the diaphragm holder 60 and the diaphragm 62 inside the valve body caused by the tampering of the nozzle 70, so it is conceivable to design the nozzle 70 as an independent component and install it on the valve body 10. On the other hand, the nozzle 70 with the horizontally oriented opening 71 is located directly below the diaphragm 62, and the nozzle 70 plays a role in protecting the diaphragm 62 to a certain extent to prevent the diaphragm 62 from being damaged from below.

[0028] The specific embodiments described above are only for more clearly describing the principle of the present invention, wherein each component is clearly shown or described to make the principle of the present invention easier to understand. Without departing from the scope of the present invention, those skilled in the art can easily make various modifications or changes to the present invention. Therefore, it should be understood that these modifications or changes should be included in the patent protection scope of the present invention.

Claims

1. A container valve, comprising: A valve body and a valve core and a diaphragm in the valve body, wherein the diaphragm is located below the valve core and closes the container valve, the valve core has a bottom capable of destroying the diaphragm, the valve core itself defines a fluid passage, the valve body defines a fluid inlet and a fluid outlet, the fluid inlet is used to connect to an upstream container located above to receive high-pressure fluid from the upstream container, the container valve also includes an actuating device, the actuating device can cause the valve core to descend to destroy the diaphragm, so that the container valve is opened and the high-pressure fluid can flow through the fluid passage defined by the valve core and pass through the container valve, the valve core and the valve A control chamber is provided between the valve body and the valve core, a through hole connecting the control chamber and the fluid channel is provided on the wall of the valve core, so that the high-pressure fluid can enter the control chamber and be in the control chamber, the high-pressure fluid acts on the valve core to apply an upward force to the valve core to keep the valve core balanced, the actuating device can be operated to discharge the high-pressure fluid in the control chamber, thereby causing the valve core to descend, the valve body has a boss, before the through hole descends with the valve core, the boss is located below the through hole, when the through hole descends with the valve core, the through hole is blocked by the boss, thereby slowing down the leakage of the fire extinguishing agent.

2. The container valve according to claim 1, characterized in that: The valve core defines a direct flow fluid passage.

3. The container valve according to claim 1, characterized in that: The fluid inlet and the fluid outlet of the valve body and the fluid passage of the valve core are on the same straight line.

4. The container valve according to any one of claims 1 to 3, characterized in that: The outer side of the top of the valve core is provided with a flange, and the high-pressure fluid acts on the bottom of the flange.

5. The container valve according to claim 4, characterized in that: The flange of the valve core defines a first sealing ring groove, and the first sealing ring is arranged between the valve core and the valve body in the first sealing ring groove.

6. The container valve according to claim 5, characterized in that: A spring is disposed in the control chamber to abut between a flange of the valve core and a boss of the valve body.

7. The container valve according to claim 6, characterized in that: The boss of the valve body has a second sealing ring groove, and the second sealing ring is arranged between the valve core and the valve body in the second sealing ring groove.

8. The container valve according to any one of claims 1 to 3, characterized in that: The valve body defines a cylindrical cavity, the valve core is cylindrical and is coaxially arranged in the cylindrical cavity of the valve body, and an annular control chamber is defined between the valve core and the valve body.

9. The container valve according to claim 1, characterized in that: The actuating device is a needle valve controlled by an electromagnetic driver, and a valve core of the needle valve moves from a through hole in a side wall of the valve body into the control chamber in response to the electromagnetic driver.

10. The container valve according to any one of claims 1 to 3, characterized in that: The bottom of the valve core defines a spike portion.

11. The container valve according to any one of claims 1 to 3, characterized in that: The container valve further comprises a diaphragm clamping member, which is mounted on the valve body and clamps and fixes the diaphragm.

12. The container valve according to claim 11, characterized in that The diaphragm clamp is annular in shape, and includes a through hole on a side wall thereof, wherein the through hole is communicated with a fluid pressure feedback device connected to the valve body.

13. The container valve according to any one of claims 1 to 3, characterized in that: The container valve also includes a nozzle connected to a fluid outlet of the valve body.

14. A fire extinguishing device, comprising a container containing a high-pressure fire extinguishing agent and a container valve according to any one of claims 1 to 13 connected to the container.

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