Valve module, valve group and fire extinguishing device

Abstract

The present invention provides a valve module, a valve group and a fire extinguishing device. The valve module includes: a valve body, a fire detection tube starting main pipeline, a fire extinguishing agent spraying main pipeline, a chamber unit, a check valve spool, a first elastic member, a control valve spool and a second elastic member. The fire detection tube starting main pipeline and the fire extinguishing agent spraying main pipeline penetrate through two installation planes of the valve body; the chamber includes a check valve chamber, a control valve chamber, a first communication channel, a fire detection tube connection channel and a nozzle connection channel, a second communication channel and a third communication channel; the check valve spool is movably arranged in the check valve chamber; the first elastic member applies an elastic force to the check valve spool towards the first valve port; the control valve spool is movably arranged in the control valve chamber; the second elastic member applies an elastic force to the control valve spool towards the second valve port. Applying the technical solution of the present invention can effectively solve the problems of complex structure and high cost of the fire extinguishing device in the prior art.

Description

Technical Field

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

[0002] In the prior art, there is an indirect fire detection tube fire extinguishing device. The indirect fire detection tube fire extinguishing device is a fire detection and start component with a fire detection tube, and a fire extinguishing agent release component with a release tube and a nozzle.

[0003] The fire detection tube is connected to the fire extinguishing agent storage device through a container valve, and is fixed near the possible location of the fire source for fire detection. When encountering fire, the fire detection tube is softened and burst at the highest heated temperature, and the pressure in the fire detection tube drops. The container valve of the fire extinguishing agent bottle group is started, and the fire extinguishing agent flows through the release tube to the nozzle, and the nozzle releases the fire extinguishing agent to extinguish the fire.

[0004] The general use method of the indirect fire detection tube fire extinguishing device on the market is that one set of system protects one space. However, for multiple relatively independent protected spaces that are close to each other, if it is possible to use one set of fire extinguishing device to protect multiple spaces simultaneously, it is a very cost-effective solution.

[0005] Some manufacturers, in order to achieve the protection of multiple protected spaces by one set of indirect fire detection tube fire extinguishing device, add a fire extinguishing controller, a multi-channel signal feedback device, multiple solenoid valves as partition control valves, and multi-channel check valves in the design. According to fire protection requirements, in addition to normal power supply, the fire extinguisher also needs to be equipped with a backup power supply.

[0006] As Figure 1 shown, the fire extinguishing device mainly consists of an indirect fire detection tube fire extinguishing device bottle group 1, a fire extinguishing controller 2, a partition solenoid valve 3, a fire extinguishing agent delivery pipeline joint, a nozzle 4, a check valve 5, a fire detection tube, and a signal feedback device 6 components.

[0007] When a fire occurs in a certain protected area, the fire detection tube arranged in this protected area is heated and ruptured, and the internal pressure drops. The signal feedback device 6 in this area feeds back the pressure drop information to the fire extinguishing controller 2. When the pressure in the fire detection tube drops, the container valve of the fire extinguishing agent bottle group with low-pressure start is started simultaneously, and the fire extinguishing agent is sprayed and released. After receiving the signal from the signal feedback device 6, the fire extinguishing controller 2 starts the partition solenoid valve 3 in the corresponding area, so that the fire extinguishing agent can flow to the nozzle 4 in this area, realizing the function of releasing the fire extinguishing agent to extinguish the fire. When the pressure in the fire detection tube of one area drops, in order to avoid causing the pressure in the fire detection tubes of other parallel areas to also drop and mis-starting the fire extinguishing agent spraying, a check valve 5 needs to be added to each fire detection tube.

[0008] This method has a relatively complex product structure, low product reliability, and very high cost. Summary of the Invention

[0009] The main object of the present invention is to provide a valve module, a valve group and a fire extinguishing device, so as to solve the problems of complex structure and high cost of the fire extinguishing device in the prior art.

[0010] To achieve the above object, according to one aspect of the present invention, there is provided a valve module, including: a valve body, including two mounting planes arranged opposite to each other along a preset direction n and a mounting side surface located between the mounting planes; a fire detection tube activation main pipe, penetrating through the two mounting planes; a fire extinguishing agent discharge main pipe, penetrating through the two mounting planes; a chamber, arranged on the valve body, the chamber includes a check valve chamber, a control valve chamber, a first communication channel connecting the check valve chamber and the control valve chamber, a fire detection tube connection channel and a nozzle connection channel connecting the control valve chamber with the outside atmosphere, a second communication channel connecting the check valve chamber with the fire detection tube activation main pipe, and a third communication channel connecting the control valve chamber with the fire extinguishing agent discharge main pipe, wherein the outlets of the fire detection tube connection channel and the nozzle connection channel are located on the mounting side surface, and the communication port where the nozzle connection channel communicates with the control valve chamber is located between the communication port where the fire detection tube connection channel communicates with the control valve chamber and the third communication channel; a check valve spool, movably arranged in the check valve chamber, a first valve port is formed at the connection between the check valve chamber and the second communication channel, and the check valve spool has a first closing position for blocking the first valve port and a first opening position for opening the first valve port; a first elastic member, applying an elastic force to the check valve spool towards the first valve port; a control valve spool, movably arranged in the control valve chamber, the control valve spool separates the first communication channel and the fire detection tube connection channel from the nozzle connection channel and the fire extinguishing agent discharge main pipe, a second valve port is formed at the connection between the control valve chamber and the third communication channel, and the control valve spool has a second closing position for blocking the second valve port and a second opening position for opening the second valve port, in the case where the control valve spool is in the second opening position, the fire extinguishing agent discharge main pipe communicates with the nozzle connection channel; a second elastic member, applying an elastic force to the control valve spool towards the second valve port.

[0011] In one embodiment, the ratio of the maximum value of the outer diameter of the control valve spool to the aperture diameter of the second valve port is between 2 and 3.

[0012] In one embodiment, the aperture diameter of the second valve port and the inner diameter of the nozzle connection channel are greater than or equal to 6 mm.

[0013] In one embodiment, the fire detection tube activation main pipe and the fire extinguishing agent discharge main pipe are arranged at intervals along a direction m perpendicular to the preset direction n, the fire detection tube activation main pipe, the second communication channel and the check valve chamber are arranged along a direction o, the fire extinguishing agent discharge main pipe, the third communication channel and the control valve chamber are arranged along the direction o, the direction o is perpendicular to the preset direction n and the direction m, and the first communication channel, the fire detection tube connection channel and the nozzle connection channel all extend along the direction m.

[0014] In one embodiment, the fire detection pipe starting main pipe includes a first intermediate pipe section, a first installation section located at the first end of the first intermediate pipe section, and a second installation section located at the second end of the first intermediate pipe section. The fire extinguishing agent discharging main pipe includes a second intermediate pipe section, a third installation section located at the first end of the second intermediate pipe section, and a fourth installation section located at the second end of the second intermediate pipe section. The first installation section and the third installation section are arranged on the same installation plane, and the second installation section and the fourth installation section are arranged on another installation plane. The valve module further includes: a starting joint detachably connected to the first installation section; a first plug detachably plugged at the second installation section; a fire extinguishing agent pipe joint detachably connected to the third installation section; and a second plug detachably plugged at the fourth installation section.

[0015] In one embodiment, the first installation section includes a first threaded hole section and a first accommodation hole section located on the side of the first threaded hole section away from the first intermediate pipe section, and the aperture of the first accommodation hole section is larger than that of the first threaded hole section; and / or, the third installation section includes a second threaded hole section and a second accommodation hole section located on the side of the second threaded hole section away from the second intermediate pipe section, and the aperture of the second accommodation hole section is larger than that of the second threaded hole section.

[0016] In one embodiment, the valve module further includes: a module installation hole extending along a preset direction n and penetrating through the two installation planes.

[0017] In one embodiment, the valve body includes a valve body, a check valve plugging cover, and a control valve plugging cover. A check valve installation hole and a control valve installation hole are provided on the installation side surface of the valve body. The check valve plugging cover plugs the orifice of the check valve installation hole to form a check valve chamber, and the control valve plugging cover plugs the orifice of the control valve installation hole to form a control valve chamber. A first elastic member abuts between the check valve plugging cover and the check valve spool, and a second elastic member abuts between the control valve plugging cover and the control valve spool.

[0018] In one embodiment, the check valve installation hole includes a first large-diameter section and a first necking section. The orifice of the first necking section away from the first large-diameter section forms a first valve port, and the hole wall of the first necking section is a first conical surface. The check valve spool has a second conical surface adapted to the first conical surface, and a first annular sealing ring is provided between the first conical surface and the second conical surface; and / or, the control valve installation hole includes a second large-diameter section and a second necking section. The orifice of the second necking section away from the second large-diameter section forms a second valve port, and the hole wall of the second necking section is a third conical surface. The control valve spool has a fourth conical surface adapted to the third conical surface, and a second annular sealing ring is provided between the third conical surface and the fourth conical surface.

[0019] In one embodiment, a third annular sealing ring is provided between the control valve spool and the inner wall of the control valve mounting hole. The third annular sealing ring is located below the first communication channel and the fire detection tube connection channel and above the nozzle connection channel in the extending direction of the control valve mounting hole.

[0020] In one embodiment, the first communication channel and the fire detection tube connection channel are coaxial. The control valve mounting hole is divided into an upper hole section and a lower hole section by the first communication channel and the fire detection tube connection channel in its extending direction. The control valve plugging cover is located in the upper hole section, the second valve port is located on the lower hole section, and a chamfer is provided at the upper end of the lower hole section.

[0021] In one embodiment, an installation groove is provided on the surface of the check valve spool close to the check valve plugging cover. The first elastic member is arranged in the installation groove, and a plurality of air leakage holes communicating with the installation groove are provided on the outer side wall of the check valve spool.

[0022] According to another aspect of the present invention, a valve group is provided, including: a plurality of valve modules arranged in parallel. The valve module is the above-mentioned valve module. The installation planes of two adjacent valve modules are opposite to each other. The fire detection tube start main pipelines of two adjacent valve modules are communicated, and the fire extinguishing agent spraying main pipelines of two adjacent valve modules are communicated.

[0023] According to the last aspect of the present invention, a fire extinguishing device is provided, including: a fire extinguishing storage bottle, including a bottle body, a container valve and a release pipe arranged on the bottle body; a valve group, the valve group is the above-mentioned valve group, the fire detection tube start main pipeline of the valve group is connected to the container valve, and the fire extinguishing agent spraying main pipeline of the valve group is connected to the release pipe; a fire detection tube, communicated with the fire detection tube connection channel of the valve group; a nozzle, communicated with the nozzle connection channel of the valve group.

[0024] Applying the technical solution of the present invention, when multiple protected areas need to be protected, a plurality of valve modules equal to or more than the number of protected areas are connected together to form a valve group. When installing a plurality of valve modules, it is necessary to make the installation planes of adjacent two valve modules face each other, and the fire detection tube starting main pipes of adjacent two valve modules are connected to form a fire detection tube starting main header pipe, and the fire extinguishing agent spraying main pipes of adjacent two valve modules are connected to form a fire extinguishing agent spraying main header pipe. Finally, one end of the fire detection tube starting main header pipe and one end of the fire extinguishing agent spraying main header pipe are blocked. When the fire detection tube in one of the protected areas is heated and ruptured, the pressure in the check valve chamber and the control valve chamber connected to the fire detection tube connection channel corresponding to the fire detection tube decreases. In this way, the first elastic member in the chamber alone can no longer hold down the check valve spool, and the gas in the fire detection tube starting main pipe pushes up the check valve spool. After the check valve spool is pushed up, the gas is discharged through the fire detection tube connection channel, so that the container valve of the fire extinguishing storage bottle is opened. Once the container valve is opened, the fire extinguishing agent in the fire extinguishing storage bottle will enter the fire extinguishing agent spraying main pipe. The fire extinguishing agent entering the fire extinguishing agent spraying main pipe can push the control valve spool in the control valve chamber with pressure released to the second open position, so that the fire extinguishing agent can be ejected through the nozzle connection channel, and finally sprayed to the corresponding protected area through the nozzle connected to the nozzle connection channel, so as to achieve the purpose of extinguishing the fire in the protected area. In addition, applying the technical solution of this embodiment, the control valve spool abuts against the second valve port under the combined action of the gas pressure in the control valve chamber and the elastic force of the second elastic member. The upward pressure exerted by the fire extinguishing agent in the fire extinguishing agent spraying main pipe on the control valve spool is less than the above-mentioned combined force. Therefore, only when the pressure in the control valve chamber corresponding to the chamber of the on-fire protected area is released, can the fire extinguishing agent push the control valve spool to move to the second open position. For the chambers corresponding to other non-on-fire protected areas, since there is still a preset pressure in the control valve chamber, even if the fire extinguishing agent exerts an upward pushing force on the control valve spool, the control valve spool still remains in the second blocking position under the combined force of the chamber pressure and the elastic force, ultimately ensuring that no fire extinguishing agent is sprayed into the non-on-fire protected area. Therefore, the above structure can achieve the purpose of extinguishing the fire in a specific protected area, and the extinguishing among multiple protected areas does not interfere with each other, and there will be no phenomenon of spraying fire extinguishing agent into the non-on-fire protected area. In summary, applying the technical solution of this embodiment, a solution for a set of fire extinguishing device to protect multiple spaces to be extinguished through a mechanical control method is realized, and the product structure of this solution is simple, with high reliability and low cost.

[0025] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 shows a schematic structural view of a fire extinguishing device in the prior art;

[0028] Figure 2 shows a three-dimensional structural view of an embodiment of a valve module according to the present invention from one angle;

[0029] Figure 3 shows Figure 2 a three-dimensional structural view of the valve module from another angle;

[0030] Figure 4 shows Figure 2 a cross-sectional view of the valve module;

[0031] Figure 5 shows Figure 4 an enlarged structural view of part A of the valve module;

[0032] Figure 6 shows Figure 4 an enlarged structural view of part B of the valve module;

[0033] Figure 7 shows Figure 2 a side view of the valve body of the valve module;

[0034] Figure 8 shows Figure 7 a cross-sectional view of the valve module in the C-C direction;

[0035] Figure 9 shows a three-dimensional structural view of an embodiment of a valve group according to the present invention;

[0036] Figure 10 shows Figure 9 a side view of the valve group; and

[0037] Figure 11 shows Figure 10 a cross-sectional view of the valve group in the D-D direction.

[0038] Among them, the above-mentioned drawings include the following reference numerals:

[0039] 10. Valve body; 11. Valve main body; 111. Installation plane; 112. Installation side; 116. Module installation hole; 12. Check valve plugging cover; 13. Control valve plugging cover; 20. Fire detection tube start main pipeline; 21. First intermediate pipe section; 22. First installation section; 221. First threaded hole section; 222. First accommodation hole section; 23. Second installation section; 30. Fire extinguishing agent discharge main pipeline; 31. Second intermediate pipe section; 32. Third installation section; 321. Second threaded hole section; 322. Second accommodation hole section; 33. Fourth installation section; 40. Chamber; 41. Check valve chamber; 411. First conical surface; 42. Control valve chamber; 421. Third conical surface; 422. Chamfer; 43. First communication channel; 44. Fire detection tube connection channel; 45. Sprinkler connection channel; 46. Second communication channel; 47. Third communication channel; 48. First valve port; 49. Second valve port; 50. Check valve spool; 51. Installation groove; 52. Air vent hole; 60. First elastic member; 70. Control valve spool; 80. Second elastic member; 90. First annular sealing ring; 100. Second annular sealing ring; 110. Third annular sealing ring; 120. Start joint; 130. Fire extinguishing agent pipe joint; 140. Fire detection tube joint; 150. Discharge pipeline joint; 170. First plug; 180. Second plug; 190. Valve module; 200. Fourth annular sealing ring; 210. Fifth annular sealing ring. Detailed implementation manner

[0040] It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0041] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so as to implement the embodiments of the present invention described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Such as Figures 2 to 11As shown in the figure, the valve module of this embodiment includes: a valve body 10, a fire detection tube starting main pipe 20, a fire extinguishing agent spraying main pipe 30, a chamber 40, a check valve spool 50, a first elastic member 60, a control valve spool 70, and a second elastic member 80. Among them, the valve body 10 includes two mounting planes 111 arranged oppositely along a preset direction n and a mounting side surface 112 located between the mounting planes 111. The fire detection tube starting main pipe 20 is arranged on the valve body 10 along the preset direction n and penetrates through the two mounting planes 111. The fire extinguishing agent spraying main pipe 30 is arranged on the valve body 10 along the preset direction n and penetrates through the two mounting planes 111. The chamber 40 includes a check valve chamber 41, a control valve chamber 42, a first communication channel 43 connecting the check valve chamber 41 and the control valve chamber 42, a fire detection tube connection channel 44 and a nozzle connection channel 45 connecting the control valve chamber 42 with the outside atmosphere, a second communication channel 46 connecting the check valve chamber 41 and the fire detection tube starting main pipe 20, and a third communication channel 47 connecting the control valve chamber 42 and the fire extinguishing agent spraying main pipe 30. Among them, the outlets of the fire detection tube connection channel 44 and the nozzle connection channel 45 are located on the mounting side surface 112, and the connection port where the nozzle connection channel 45 communicates with the control valve chamber 42 is located between the connection port where the fire detection tube connection channel 44 communicates with the control valve chamber 42 and the third communication channel 47. The check valve spool 50 is movably arranged in the check valve chamber 41. A first valve port 48 is formed at the connection between the check valve chamber 41 and the second communication channel 46. The check valve spool 50 has a first blocking position for blocking the first valve port 48 and a first opening position for opening the first valve port 48. The first elastic member 60 applies an elastic force to the check valve spool 50 towards the first valve port 48. The control valve spool 70 is movably arranged in the control valve chamber 42. The control valve spool 70 separates the first communication channel 43 and the fire detection tube connection channel 44 from the nozzle connection channel 45 and the fire extinguishing agent spraying main pipe 30. A second valve port 49 is formed at the connection between the control valve chamber 42 and the third communication channel 47. The control valve spool 70 has a second blocking position for blocking the second valve port 49 and a second opening position for opening the second valve port 49. When the control valve spool 70 is in the second opening position, the fire extinguishing agent spraying main pipe 30 communicates with the nozzle connection channel 45. The second elastic member 80 applies an elastic force to the control valve spool 70 towards the second valve port 49.

[0045] Applying the technical solution of this embodiment, when multiple protected areas need to be protected, multiple valve modules equal to or more than the number of protected areas are connected together to form a valve group. When installing multiple valve modules, it is necessary to make the installation planes 111 of adjacent two valve modules face each other, and the fire detection tube start main pipes 20 of adjacent two valve modules are connected to form a fire detection tube start main header, and the fire extinguishing agent discharge main pipes 30 of adjacent two valve modules are connected to form a fire extinguishing agent discharge main header. Finally, one end of the fire detection tube start main header and one end of the fire extinguishing agent discharge main header are blocked. When the fire detection tube in one of the protected areas is heated and ruptured, the pressure in the check valve chamber 41 and the control valve chamber 42 connected to the fire detection tube connection passage 44 corresponding to the fire detection tube decreases. In this way, the first elastic member 60 in the chamber 40 alone can no longer press down the check valve spool 50, and the gas in the fire detection tube start main pipe 20 pushes up the check valve spool 50. After the check valve spool 50 is pushed up, the gas is discharged from the fire detection tube connection passage 44, so that the container valve of the fire extinguishing cylinder is opened. Once the container valve is opened, the fire extinguishing agent in the fire extinguishing cylinder will enter the fire extinguishing agent discharge main pipe 30. The fire extinguishing agent entering the fire extinguishing agent discharge main pipe 30 can push the control valve spool 70 in the control valve chamber 42 with pressure released to the second open position, so that the fire extinguishing agent can be ejected from the nozzle connection passage 45, and finally sprayed to the corresponding protected area through the nozzle connected to the nozzle connection passage 45, so as to achieve the purpose of extinguishing the fire in the protected area. In addition, applying the technical solution of this embodiment, the control valve spool 70 abuts against the second valve port 49 under the combined action of the gas pressure in the control valve chamber 42 and the elastic force of the second elastic member 80. The upward pressure exerted by the fire extinguishing agent in the fire extinguishing agent discharge main pipe 30 on the control valve spool 70 is less than the above combined force. Therefore, only when the pressure in the control valve chamber 42 of the chamber 40 corresponding to the on-fire protected area is released, can the fire extinguishing agent push the control valve spool 70 to move to the second open position. For the chambers 40 corresponding to other non-on-fire protected areas, since the control valve chamber 42 still has a preset pressure, even if the fire extinguishing agent exerts an upward pushing force on the control valve spool 70, the control valve spool 70 still remains in the second blocking position under the combined force of the chamber pressure and the elastic force, finally ensuring that no fire extinguishing agent is sprayed into the non-on-fire protected area. Therefore, the above structure can achieve the purpose of extinguishing the fire in a specific protected area, and the fire extinguishing among multiple protected areas does not interfere with each other, and there will be no phenomenon of spraying fire extinguishing agent into the non-on-fire protected area. To sum up, applying the technical solution of this embodiment, a solution for a set of fire extinguishing device to protect multiple spaces to be extinguished through a mechanical control method is realized, and the product structure of this solution is simple, highly reliable, and low in cost. Finally, applying the technical solution of this embodiment, the number of valve modules in the valve group can be flexibly set according to actual needs, so as to improve the flexibility of use of the valve group.

[0046] Preferably, both the first elastic member 60 and the second elastic member 80 are springs.

[0047] It should be noted that the valve group shown in the figure can protect three protection areas. In other embodiments, the valve group may include two valve modules or four or more valve modules.

[0048] In this embodiment, both the fire detection tube start main pipe and the fire extinguishing agent discharge main pipe of the valve group formed by splicing multiple valve modules have an unblocked end. A start joint 120 is provided at the unblocked end of the fire detection tube start main pipe, and a fire extinguishing agent pipe joint 130 is provided at the unblocked end of the fire extinguishing agent discharge main pipe. The above structure enables the valve group to be quickly connected to the fire extinguishing storage cylinder, improving the connection efficiency.

[0049] As Figures 2 to 4 shown, in this embodiment, a fire detection tube joint 140 is provided at the fire detection tube connection channel 44. A discharge pipe joint 150 is provided at the sprinkler connection channel 45. The above structure enables the valve group to be quickly connected to the fire detection tube and the sprinkler, thereby improving the connection efficiency. Of course, in other embodiments not shown in the figure, a fire detection tube joint may be provided only at the fire detection tube connection channel, or a discharge pipe joint may be provided only at the sprinkler connection channel.

[0050] The following details the process and state of the connection between the valve group formed by splicing multiple valve modules and the fire extinguishing storage cylinder:

[0051] First, firmly connect the start joint 120 and the fire extinguishing agent pipe joint 130 to the container valve and the release pipe of the fire extinguishing storage cylinder respectively. After the connection is firm, the gas enters each fire detection tube start main pipe 20. The gas flowing into each fire detection tube start main pipe 20 flows into the corresponding second communication channel 46 and pushes up each check valve spool 50 to the first open position. When each check valve spool 50 moves to the first open position, the gas in each second communication channel 46 will enter the corresponding check valve chamber 41 and control valve chamber 42 through the corresponding first valve port 48. After each check valve spool 50 moves to the first open position for a certain period of time, each check valve spool 50 returns to the first blocking position under the action of the gas pressure and the elastic force of the first elastic member 60. The above process is the process of pressurizing the check valve chamber 41 and the control valve chamber 42 of each valve module.

[0052] As Figure 4As shown, in this embodiment, the ratio of the maximum outer diameter of the control valve spool 70 to the aperture diameter of the second valve port 49 is between 2 and 3. Specifically, in this embodiment, the control valve spool 70 is a columnar rotating body. The lower surface of the control valve spool 70 seals the second valve port 49, and the area of the upper surface of the control valve spool 70 is larger than that of the lower surface. The difference in the upper and lower areas enables the extinguishing agent to have sufficient force to withstand the pressure during spraying in the control valve chamber 42 where the pressure has not been released, that is, to ensure that the control valve spool 70 of the valve module corresponding to the protected area that has not caught fire will not be pushed open by the extinguishing agent. Preferably, in this embodiment, the ratio of the maximum outer diameter of the control valve spool 70 to the aperture diameter of the second valve port 49 is 2.1.

[0053] In this embodiment, the aperture diameter of the second valve port 49 and the inner channel diameter of the nozzle connection channel 45 are greater than or equal to 6 mm. The above structure can ensure that the liquid extinguishing agent can be smoothly ejected through the second valve port 49 and the nozzle connection channel 45.

[0054] As Figures 2 to 4 shown, in this embodiment, the fire detection tube activation main pipe 20 and the extinguishing agent spraying main pipe 30 are arranged at intervals along the direction m perpendicular to the preset direction n. The fire detection tube activation main pipe 20, the second communication channel 46 and the check valve chamber 41 are arranged along the direction o. The extinguishing agent spraying main pipe 30, the third communication channel 47 and the control valve chamber 42 are arranged along the direction o. The direction o is perpendicular to the preset direction n and the direction m. The first communication channel 43, the fire detection tube connection channel 44 and the nozzle connection channel 45 all extend along the direction m. The above structure makes the layout of the fire detection tube activation main pipe 20, the extinguishing agent spraying main pipe 30 and the chamber 40 reasonable. On the one hand, it is convenient for the flow of gas and liquid to ensure the fire extinguishing effect; on the other hand, it is convenient for splicing between multiple valve modules.

[0055] As Figure 11 shown, in this embodiment, the blocked end of the fire detection tube activation main pipe of the valve group formed by multiple valve modules is blocked by the first plug 170, and the blocked end of the extinguishing agent spraying main pipe of the valve group is blocked by the second plug 180.

[0056] Specifically, as Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, in this embodiment, the fire detection tube starting main pipe 20 includes a first intermediate pipe section 21, a first installation section 22 located at the first end of the first intermediate pipe section 21, and a second installation section 23 located at the second end of the first intermediate pipe section 21. The fire extinguishing agent spraying main pipe 30 includes a second intermediate pipe section 31, a third installation section 32 located at the first end of the second intermediate pipe section 31, and a fourth installation section 33 located at the second end of the second intermediate pipe section 31. The first installation section 22 and the third installation section 32 are arranged on the same installation plane 111, and the second installation section 23 and the fourth installation section 33 are arranged on another installation plane 111. The starting joint 120 is connected to the first installation section 22; the first plug 170 is detachably plugged at the second installation section 23; the fire extinguishing agent pipe joint 130 is connected to the third installation section 32; the second plug 180 is detachably plugged at the fourth installation section 33. Specifically, before splicing multiple valve modules, it is necessary to remove all of the starting joint 120, the fire extinguishing agent pipe joint 130, the first plug 170, and the second plug 180 of one or more valve modules (after removal, they are reserved as middle valve modules), then remove the first plug 170 and the second plug 180 on one valve module (after removal, they are reserved as head valve modules), and then remove the starting joint 120 and the fire extinguishing agent pipe joint 130 on another valve module (after removal, they are reserved as tail valve modules). When splicing multiple valve modules, the head valve module, the middle valve module, and the tail valve module can be connected together. The above structure makes the valve module universal, and it can be used as a head valve module, a middle valve module, and a tail valve module only by removing the corresponding components.

[0057] As Figure 8 and Figure 11 shown, in this embodiment, the first installation section 22 includes a first threaded hole section 221 and a first receiving hole section 222 located on the side of the first threaded hole section 221 away from the first intermediate pipe section 21. The aperture of the first receiving hole section 222 is larger than the aperture of the first threaded hole section 221. Specifically, the starting joint 120 can be screwed and matched with the first threaded hole section 221. The fourth annular sealing ring 200 is placed in the first receiving hole section 222. When the valve module is used as a head valve module, the fourth annular sealing ring 200 in the first receiving hole section 222 is clamped between the starting joint 120 and the valve body 10. At this time, the fourth annular sealing ring 200 is preferably a combined washer; when the valve module is used as a middle valve module or a tail valve module, the fourth annular sealing ring 200 in the first receiving hole section 222 is clamped between the valve bodies of two valve modules, playing a sealing role to prevent the fluid in the fire detection tube starting main pipe 20 from leaking from the gap between the two valve modules. At this time, the fourth annular sealing ring 200 is preferably an ordinary O-ring.

[0058] As Figure 8 and Figure 11As shown in the figure, in this embodiment, the third installation section 32 includes a second threaded hole section 321 and a second accommodation hole section 322 located on the side of the second threaded hole section 321 away from the second intermediate pipe section 31. The aperture of the second accommodation hole section 322 is larger than that of the second threaded hole section 321. Specifically, the fire extinguishing agent pipe joint 130 can be screwed and fitted with the second threaded hole section 321. The fifth annular sealing ring 210 is placed in the second accommodation hole section 322. When the valve module is used as the head valve module, the fifth annular sealing ring 210 in the second accommodation hole section 322 is clamped between the fire extinguishing agent pipe joint 130 and the valve body 10. At this time, the fifth annular sealing ring 210 preferably uses a combined washer; when the valve module is used as the middle valve module or the tail valve module, the fifth annular sealing ring 210 in the second accommodation hole section 322 is clamped between the valve bodies of the two valve modules, playing a sealing role to prevent the fluid in the main pipeline 30 for fire extinguishing agent spraying from leaking through the gap between the two valve modules. At this time, the fifth annular sealing ring 210 preferably uses an ordinary O-ring.

[0059] As Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown in the figure, in this embodiment, the valve module further includes: a module installation hole 116, which extends along a preset direction n and penetrates through the two installation planes 111. Specifically, when splicing the valve modules, the module installation holes 116 of two adjacent valve modules need to be opposite to each other. After alignment, bolts are passed through the module installation holes 116, and finally tightened with nuts. The above connection method is simple and easy to assemble. Preferably, in this embodiment, there are four module installation holes 116, and the four module installation holes 116 are arranged at the four corners of the valve module.

[0060] As Figure 4 As shown in the figure, in this embodiment, the valve body 10 includes a valve body 11, a check valve plugging cover 12, and a control valve plugging cover 13. A check valve installation hole and a control valve installation hole are provided on the installation side surface 112 of the valve body 11. The check valve plugging cover 12 plugs the orifice of the check valve installation hole to form a check valve chamber 41, and the control valve plugging cover 13 plugs the orifice of the control valve installation hole to form a control valve chamber 42. The first elastic member 60 abuts between the check valve plugging cover 12 and the check valve spool 50, and the second elastic member 80 abuts between the control valve plugging cover 13 and the control valve spool 70. The above structure is simple. The check valve plugging cover 12 plays a role in limiting the check valve spool 50, and the control valve plugging cover 13 plays a role in limiting the control valve spool 70.

[0061] As Figure 4 and Figure 5As shown, in this embodiment, the check valve mounting hole includes a first large-diameter section and a first necking section. The mouth of the first necking section away from the first large-diameter section forms a first valve port 48. The hole wall of the first necking section is a first conical surface 411. The check valve spool 50 has a second conical surface adapted to the first conical surface 411. A first annular sealing ring 90 is provided between the first conical surface 411 and the second conical surface. Specifically, the first annular sealing ring 90 is in contact with the first conical surface 411 and has a certain degree of compression to achieve the sealing effect. When the check valve spool 50 is in the first blocking position, the fire detection tube activates the main pipeline 20 and the second communication channel 46 to form a first space. The part above the first annular sealing ring 90 in the check valve chamber 41, the control valve chamber 42, the first communication channel 43, and the fire detection tube connection channel 44 form a second space. The first space and the second space are independent of each other. In this way, when a certain protected area catches fire, the pressures in the first space and the second space corresponding to this protected area decrease. The pressure in the second space corresponding to the non-fire protected area can be sealed by the first annular sealing ring 90 without leakage, achieving the purpose of non-interference in fire extinguishing between multiple protected areas and preventing the phenomenon of spraying fire extinguishing agent into the non-fire protected area.

[0062] As Figure 4 and Figure 6 shown, in this embodiment, the control valve mounting hole includes a second large-diameter section and a second necking section. The mouth of the second necking section away from the second large-diameter section forms a second valve port 49. The hole wall of the second necking section is a third conical surface 421. The control valve spool 70 has a fourth conical surface adapted to the third conical surface 421. A second annular sealing ring 100 is provided between the third conical surface 421 and the fourth conical surface. Specifically, the second annular sealing ring 100 is in contact with the third conical surface 421 and has a certain degree of compression to achieve the sealing effect. The above structure enables that when the fire extinguishing agent enters the main fire extinguishing agent spraying pipeline 30, for the control valve mounting hole corresponding to the non-fire protected area, the second annular sealing ring 100 can seal the third conical surface 421 and the fourth conical surface, preventing the fire extinguishing agent from entering the spraying pipeline joint 150 corresponding to the non-fire protected area through the gap between the third conical surface 421 and the fourth conical surface, achieving the purpose of non-interference in fire extinguishing between multiple protected areas and preventing the phenomenon of spraying fire extinguishing agent into the non-fire protected area. Of course, in other embodiments not shown in the figure, only the first annular sealing ring or only the second annular sealing ring can be provided.

[0063] As Figure 4 and Figure 6As shown, in this embodiment, a third annular sealing ring 110 is provided between the control valve spool 70 and the hole wall of the control valve mounting hole. The third annular sealing ring 110 is located below the first communication channel 43 and the fire detection tube connection channel 44 and above the nozzle connection channel 45 in the extending direction of the control valve mounting hole. The above structure enables that when the control valve spool 70 moves to the second open position, the fire extinguishing agent will not enter the first communication channel 43 and the fire detection tube connection channel 44, preventing the fire extinguishing agent from leaking out through the fire detection tube joint 140. It should be noted that the above-mentioned second space is actually specifically formed by the part above the first annular sealing ring 90 of the check valve chamber 41, the part above the third annular sealing ring 110 of the control valve chamber 42, the first communication channel 43 and the fire detection tube connection channel 44.

[0064] As Figure 4 shown, in this embodiment, the first communication channel 43 and the fire detection tube connection channel 44 are coaxial. The above structure enables smooth gas flow and facilitates the discharge from the fire detection tube connection channel 44. In addition, the above structure is convenient for processing.

[0065] As Figure 4 and Figure 6 shown, in this embodiment, the control valve mounting hole is divided into an upper hole section and a lower hole section by the first communication channel 43 and the fire detection tube connection channel 44 in its extending direction. The control valve plugging cover 13 is located in the upper hole section, the second valve port 49 is located on the lower hole section, and a chamfer 422 is provided at the upper end of the lower hole section. Specifically, a sealing ring installation groove is provided on the outer side wall of the control valve spool 70, and the third annular sealing ring 110 is arranged in the sealing ring installation groove. When the control valve spool 70 is installed into the control valve mounting hole, the position where the control valve mounting hole is connected to the first communication channel 43 and the fire detection tube connection channel 44 may severely squeeze the third annular sealing ring 110, resulting in damage to the third annular sealing ring 110 and thus failing to play a sealing role. Therefore, the chamfer 422 is added to enable the third annular sealing ring 110 to smoothly slide into the lower hole section through the chamfer 422, preventing the phenomenon of cutting the ring.

[0066] As Figure 4 and Figure 5 shown, in this embodiment, an installation groove 51 is provided on the surface of the check valve spool 50 close to the check valve plugging cover 12, and the first elastic member 60 is arranged in the installation groove 51. A closed space will be formed between the installation groove 51 and the chamber wall of the check valve chamber 41, which causes the need to compress air during the upward movement of the check valve spool 50, making it difficult for the check valve spool 50 to move upward. To solve the above problem, as Figure 4 and Figure 5As shown, in this embodiment, a plurality of air vents 52 communicating with the installation groove 51 are provided on the outer sidewall of the check valve spool 50. The above structure enables the gas between the installation groove 51 and the chamber wall of the check valve chamber 41 to be discharged through the plurality of air vents 52 during the upward movement of the check valve spool 50, quickly expelling the gas, thereby improving the smoothness of the upward movement of the check valve spool 50.

[0067] As Figures 9 to 11 As shown, the present application provides a valve group. An embodiment of the valve group according to the present application includes: a plurality of valve modules 190 arranged in parallel. The valve module 190 is the above-mentioned valve module. The installation planes 111 of two adjacent valve modules 190 face each other. The fire detection tube start main pipelines 20 of two adjacent valve modules 190 are connected, and the fire extinguishing agent discharge main pipelines 30 of two adjacent valve modules 190 are connected. The valve group formed by splicing the above valve modules 190 has the advantages of simple structure, high reliability, and low cost.

[0068] The following points need to be further elaborated in detail:

[0069] 1. The start joint 120 and the fire extinguishing agent pipe joint 130 of the valve group are respectively firmly connected to the container valve and the release pipe of the fire extinguishing storage bottle. When the pressure in the fire extinguishing storage bottle leads to the check valve chamber 41, the check valve spool 50 will be pushed upward by the pressure until it fits with the check valve sealing cover 12. The pressure in the check valve chamber 41, the part above the third annular sealing ring 110 in the control valve chamber 42, the fire detection tube connection channel 44, and the fire detection tube in the protected area connected to the fire detection tube connection channel 44 will be the same. At this time, the check valve spool 50 will move downward under the pressure of the first elastic member 60 until it fits with the valve body 10, making the pressures in the above-mentioned first space and second space independent of each other.

[0070] 2. After the pressure in the check valve chamber 41, the part above the third annular sealing ring 110 in the control valve chamber 42, the fire detection tube connection channel 44, and the fire detection tube in the protected area connected to the fire detection tube connection channel 44 is the same, the elastic force of the second elastic member 80 and the pressure of the part above the third annular sealing ring 110 in the control valve chamber 42 will keep the control valve spool 70 in the non-softened and non-exploded channel of the protected area fire detection tube stationary.

[0071] 3. The fire detection tube in a certain protection area softens and bursts, causing the pressure in the check valve chamber 41, the part above the third annular seal 110 in the control valve chamber 42, the fire detection tube connection channel 44, and the part of the fire detection tube in the protection area connected to the fire detection tube connection channel 44 to rapidly leak. The check valve spool 50 is rapidly pushed by the pressure in the main fire detection tube starting pipeline 20, the pressure is released, the container valve opens, and the fire extinguishing agent begins to be sprayed along the main fire extinguishing agent spraying pipeline 30, pushing the control valve spool 70 of the channel where the fire detection tube softens and bursts upward, and the fire extinguishing agent begins to be sprayed.

[0072] The following specifically introduces an example:

[0073] The size of the first elastic part is 0.8 * 8 * 15 (mm), the elastic force in the initial state is 12 N, and the elastic force after being compressed is 22 N;

[0074] The size of the second elastic part is 1.2 * 10 * 30 (mm), the elastic force in the initial state is 19.5 N, and the elastic force after being compressed is 58 N;

[0075] Suppose the volume of the gas cylinder is 3 L, the perfluorohexanone filled is 3 Kg, and the filling pressure is 2.5 MPa.

[0076] After the fire detection tube in a certain protection area softens and bursts, the cross-sectional area of the check valve spool 50 in the corresponding channel under the pressure from the gas cylinder in an instant is 70.88 mm 2 , the pressure in the gas cylinder is 2.5 MPa, and after being reduced by the container valve, it is 1.6 MPa. Therefore, the pressure entering the check valve chamber 41 is 1.6 MPa, and the force received instantaneously is 113 N, which is much greater than the elastic force of the spring. Therefore, the check valve spool 50 can be rapidly pushed.

[0077] For the channels where the fire extinguishing agent is not sprayed, the control valve spool 70 cannot move. At this time, the part above the third annular seal 110 in the control valve chamber 42 is consistent with the pressure in the check valve chamber 41, which is 1.6 MPa. The size of the second elastic part is 1.2 * 10 * 30 (mm), and the elastic force in the initial state is 19.5 N. Therefore, the cross-sectional area of the top of the control valve spool 70 under the pressure is 314.16 mm 2 , the force given by the gas is 294.52 N, and the total force received including the spring elastic force is 313.65 N.

[0078] After the fire detection tube in a certain protection area softens and bursts, the cross-sectional area of the control valve spool 70 in the corresponding channel under the pressure from the gas cylinder in an instant is 70.88 mm 2 , the pressure in the gas cylinder is 2.5 MPa, and the force received instantaneously is 177 N, which cannot push the control valve spool 70 in the unsprayed channel.

[0079] As long as the check valve spool 50 moves, the fire extinguishing agent will push the control valve spool 70 to continuously spray. Therefore, finally, only the force received by the control valve spool 70 after the fire extinguishing agent spraying is completed needs to be calculated.

[0080] After the fire extinguishing agent spraying is completed, according to the ideal gas state formula, the pressure in the gas cylinder is obtained as 0.94 MPa. The cross-sectional area of the control valve spool 70 affected by the pressure in the gas cylinder is 314.16 mm 2 , and the thrust received is 295 N, which is much greater than the elastic force of the spring. Therefore, during the process of spraying the fire extinguishing agent, the control valve spool 70 will always be in a state of being in contact with the control valve sealing cover 13.

[0081] The present application also provides a fire extinguishing device. An embodiment of the fire extinguishing device (not shown in the figure) according to the present application includes: a fire extinguishing storage cylinder, a valve group, a fire detection tube, and a nozzle. Among them, the fire extinguishing storage cylinder includes a cylinder body, a container valve provided on the cylinder body, and a release pipe. The valve group is the above-mentioned valve group. The fire detection tube start main pipe 20 of the valve group is connected to the container valve, and the fire extinguishing agent spraying main pipe 30 of the valve group is connected to the release pipe. The fire detection tube is communicated with the fire detection tube connection channel 44 of the valve group. The nozzle is communicated with the nozzle connection channel 45 of the valve group. Since the above-mentioned valve group has the advantages of simple structure, high reliability, and low cost, the fire extinguishing device having it also has the above advantages.

[0082] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0083] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above or over other devices or structures" will then be positioned "below or under other devices or structures". Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0084] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0085] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A valve module, characterized in that, it includes: a valve body (10), including two mounting planes (111) arranged opposite to each other along a preset direction n and a mounting side surface (112) located between the mounting planes (111); a fire detection tube activation main pipeline (20), penetrating through the two mounting planes (111); a fire extinguishing agent discharge main pipeline (30), penetrating through the two mounting planes (111); a chamber (40), arranged on the valve body (10), the chamber (40) includes a check valve chamber (41), a control valve chamber (42), a first communication channel (43) connecting the check valve chamber (41) and the control valve chamber (42), a fire detection tube connection channel (44) and a nozzle connection channel (45) connecting the control valve chamber (42) to the outside atmosphere, a second communication channel (46) connecting the check valve chamber (41) and the fire detection tube activation main pipeline (20), and a third communication channel (47) connecting the control valve chamber (42) and the fire extinguishing agent discharge main pipeline (30), wherein the outlets of the fire detection tube connection channel (44) and the nozzle connection channel (45) are located on the mounting side surface (112), and the connection port of the nozzle connection channel (45) communicating with the control valve chamber (42) is located between the connection port of the fire detection tube connection channel (44) communicating with the control valve chamber (42) and the third communication channel (47); a check valve spool (50), movably arranged in the check valve chamber (41), a first valve port (48) is formed at the connection of the check valve chamber (41) and the second communication channel (46), and the check valve spool (50) has a first blocking position for blocking the first valve port (48) and a first opening position for opening the first valve port (48); a first elastic member (60), applying an elastic force to the check valve spool (50) towards the first valve port (48); a control valve spool (70), movably arranged in the control valve chamber (42), the control valve spool (70) separates the first communication channel (43) and the fire detection tube connection channel (44) from the nozzle connection channel (45) and the fire extinguishing agent discharge main pipeline (30), a second valve port (49) is formed at the connection of the control valve chamber (42) and the third communication channel (47), and the control valve spool (70) has a second blocking position for blocking the second valve port (49) and a second opening position for opening the second valve port (49), and when the control valve spool (70) is in the second opening position, the fire extinguishing agent discharge main pipeline (30) communicates with the nozzle connection channel (45); a second elastic member (80), applying an elastic force to the control valve spool (70) towards the second valve port (49).

2. The valve module according to claim 1, characterized in that, the ratio of the maximum value of the outer diameter of the control valve spool (70) to the aperture of the second valve port (49) is between 2 and 3.

3. The valve module according to claim 1, wherein, the aperture diameter of the second valve port (49) and the inner channel diameter of the nozzle connection channel (45) are greater than or equal to 6 mm.

4. The valve module according to claim 1, wherein, the fire detection tube activation main pipe (20) and the fire extinguishing agent discharge main pipe (30) are arranged at intervals in a direction m perpendicular to the preset direction n. The fire detection tube activation main pipe (20), the second communication channel (46) and the check valve chamber (41) are arranged in a direction o. The fire extinguishing agent discharge main pipe (30), the third communication channel (47) and the control valve chamber (42) are arranged in the direction o. The direction o is perpendicular to the preset direction n and the direction m. The first communication channel (43), the fire detection tube connection channel (44) and the nozzle connection channel (45) all extend along the direction m.

5. The valve module according to claim 1, wherein, the fire detection tube activation main pipe (20) includes a first intermediate pipe section (21), a first installation section (22) located at the first end of the first intermediate pipe section (21), and a second installation section (23) located at the second end of the first intermediate pipe section (21). The fire extinguishing agent discharge main pipe (30) includes a second intermediate pipe section (31), a third installation section (32) located at the first end of the second intermediate pipe section (31), and a fourth installation section (33) located at the second end of the second intermediate pipe section (31). The first installation section (22) and the third installation section (32) are arranged on the same installation plane (111). The second installation section (23) and the fourth installation section (33) are arranged on another installation plane (111). The valve module further includes: a start joint (120), detachably connected to the first installation section (22); a first plug (170), detachably plugging at the second installation section (23); a fire extinguishing agent pipe joint (130), detachably connected to the third installation section (32); a second plug (180), detachably plugging at the fourth installation section (33).

6. The valve module according to claim 5, wherein, the first installation section (22) includes a first threaded hole section (221) and a first accommodation hole section (222) located on the side of the first threaded hole section (221) away from the first intermediate pipe section (21). The aperture diameter of the first accommodation hole section (222) is greater than the aperture diameter of the first threaded hole section (221); and / or, the third installation section (32) includes a second threaded hole section (321) and a second accommodation hole section (322) located on the side of the second threaded hole section (321) away from the second intermediate pipe section (31). The aperture diameter of the second accommodation hole section (322) is greater than the aperture diameter of the second threaded hole section (321).

7. The valve module according to claim 1, wherein, the valve module further includes: The module mounting holes (116) extend along the preset direction n and penetrate through the two mounting planes (111).

8. The valve module according to claim 1, wherein, the valve body (10) includes a valve main body (11), a check valve plugging cover (12) and a control valve plugging cover (13). A check valve mounting hole and a control valve mounting hole are provided on the mounting side surface (112) of the valve main body (11). The check valve plugging cover (12) plugs the orifice of the check valve mounting hole to form the check valve chamber (41), and the control valve plugging cover (13) plugs the orifice of the control valve mounting hole to form the control valve chamber (42). The first elastic member (60) abuts between the check valve plugging cover (12) and the check valve spool (50), and the second elastic member (80) abuts between the control valve plugging cover (13) and the control valve spool (70). The check valve mounting hole includes a first large-diameter section and a first necking section. The orifice of the first necking section away from the first large-diameter section forms the first valve port (48). The hole wall of the first necking section is a first conical surface (411). The check valve spool (50) has a second conical surface adapted to the first conical surface (411). A first annular sealing ring (90) is provided between the first conical surface (411) and the second conical surface. The control valve mounting hole includes a second large-diameter section and a second necking section. The orifice of the second necking section away from the second large-diameter section forms the second valve port (49). The hole wall of the second necking section is a third conical surface (421). The control valve spool (70) has a fourth conical surface adapted to the third conical surface (421). A second annular sealing ring (100) is provided between the third conical surface (421) and the fourth conical surface. A third annular sealing ring (110) is provided between the control valve spool (70) and the hole wall of the control valve mounting hole. The third annular sealing ring (110) is located below the first communication channel (43) and the fire detection tube connection channel (44) and above the nozzle connection channel (45) in the extending direction of the control valve mounting hole. The first communication channel (43) and the fire detection tube connection channel (44) are coaxial. The control valve mounting hole is divided into an upper hole section and a lower hole section by the first communication channel (43) and the fire detection tube connection channel (44) in its extending direction. The control valve plugging cover (13) is located in the upper hole section, and the second valve port (49) is located on the lower hole section. A chamfer (422) is provided at the upper end of the lower hole section. An installation groove (51) is provided on the surface of the check valve spool (50) close to the check valve plugging cover (12). The first elastic member (60) is arranged in the installation groove (51). A plurality of air leakage holes (52) communicating with the installation groove (51) are provided on the outer side wall of the check valve spool (50).

9. A valve group, wherein, it includes: A plurality of valve modules (190) arranged in parallel, where the valve module (190) is the valve module described in any one of the above claims 1 to 8, the installation planes (111) of two adjacent valve modules (190) face each other, the fire detection pipe start main pipelines (20) of two adjacent valve modules (190) are connected, and the fire extinguishing agent discharge main pipelines (30) of two adjacent valve modules (190) are connected.

10. A fire extinguishing device, comprising: A fire extinguishing storage bottle, including a bottle body, a container valve provided on the bottle body, and a release pipe; A valve group, characterized in that the valve group is the valve group described in claim 9, the fire detection pipe start main pipeline (20) of the valve group is connected to the container valve, and the fire extinguishing agent discharge main pipeline (30) of the valve group is connected to the release pipe; A fire detection pipe, communicating with the fire detection pipe connection channel (44) of the valve group; A spray head, communicating with the spray head connection channel (45) of the valve group.

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