CN218280390U - Valve bank and fire extinguishing device - Google Patents

Abstract

The utility model provides a valves and extinguishing device, wherein, the valves, include: valve body, visit firetube and start main pipe, chamber unit, check valve case, first elastic component, control valve case and second elastic component are put to fire extinguishing agent spraying. The chamber unit comprises a check valve chamber, a control valve chamber, a first communication channel, a fire detection pipe connecting channel, a spray head connecting channel, a second communication channel and a third communication channel; a movable check valve core is arranged in the check valve cavity; the control valve chamber is provided with a movable control valve core, the control valve core separates the first communication channel and the fire detecting tube connecting channel from the spray head connecting channel and the fire extinguishing agent spraying main pipeline, and the fire extinguishing agent spraying main pipeline is communicated with the spray head connecting channel under the condition that the second valve port is opened by the control valve core. Use the technical scheme of the utility model can solve the problem that fire extinguishing apparatus's structure is complicated among the prior art, with high costs effectively.

Description

Valve bank and fire extinguishing device

Technical Field

The utility model relates to a extinguishing device field particularly, relates to a valves and extinguishing device.

Background

There is an indirect fire detecting tube fire extinguishing apparatus in the prior art, which uses the fire detecting tube as a fire detecting and starting part and uses a releasing tube and a nozzle as a fire extinguishing agent releasing part.

The fire detecting tube is connected to the fire extinguishing agent storage device through the container valve and fixed near the position where the fire source is likely to occur to detect the fire source, when the fire is met, the fire detecting tube is softened and exploded at the position with the highest heating temperature, the container valve of the fire extinguishing agent bottle group is started by utilizing the pressure reduction in the fire detecting tube, the fire extinguishing agent flows to the nozzle through the release pipe, and the nozzle releases the fire extinguishing agent to extinguish the fire.

The indirect fire detecting tube fire extinguishing device on the market is generally used in a mode of protecting a space for a set of system. But a plurality of protected spaces which are relatively close and independent are very cost-effective solutions if one set of fire extinguishing apparatus can be used to protect a plurality of spaces simultaneously.

In order to realize that the set of indirect fire detecting tube fire extinguishing device protects a plurality of protected spaces, a fire extinguishing controller, a multi-channel signal feedback device and a plurality of electromagnetic valves are added in the design scheme to serve as a partition control valve and a multi-channel check valve. According to the fire-fighting requirements, the fire extinguisher needs to be provided with a standby power supply besides a normal power supply.

As shown in fig. 1, the fire extinguishing apparatus mainly comprises an indirect fire detecting tube fire extinguishing apparatus cylinder group 1, a fire extinguishing controller 2, a partition electromagnetic valve 3, a fire extinguishing agent delivery pipeline joint, a spray head 4, a check valve 5, a fire detecting tube and a signal feedback device 6.

When a fire disaster happens to a certain protected area, the fire detecting tube arranged in the protected area is heated and broken, the internal pressure is reduced, the signal feedback device 6 in the area feeds back pressure reduction information to the fire extinguishing controller 2, the fire detecting tube is reduced in pressure, and meanwhile, the fire extinguishing agent bottle group container valve started at low pressure is started, and fire extinguishing agent is sprayed and released. After receiving the signal of the signal feedback device 6, the fire extinguishing controller 2 starts the partition electromagnetic valve 3 of the corresponding area, so that the fire extinguishing agent can flow to the spray head 4 of the area, and the fire extinguishing function of releasing the fire extinguishing agent is realized. When the pressure of the fire detecting pipe in one area is reduced, in order to avoid that the pressure in the fire detecting pipes in other areas connected in parallel is also reduced and the fire extinguishing agent is sprayed by mistake, a check valve 5 is required to be added in each fire detecting pipe.

The product structure of the mode is more complicated, the product reliability is low, and the cost is very high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a valves and extinguishing device to solve extinguishing device's among the prior art complicated, the with high costs problem of structure.

In order to achieve the above object, according to an aspect of the present invention, there is provided a valve group, including: a valve body; the fire detecting pipe starting main pipeline is a blind hole formed in the valve body and is provided with a first air inlet located on the outer surface of the valve body; the fire extinguishing agent spraying main pipeline is a blind hole formed in the valve body and is arranged at intervals with the fire detecting pipe starting main pipeline, and the fire extinguishing agent spraying main pipeline is provided with a second air inlet located on the outer surface of the valve body; the chamber unit comprises a check valve chamber, a control valve chamber, a first communication channel for communicating the check valve chamber with the control valve chamber, a fire detecting pipe connecting channel and a spray head connecting channel for communicating the control valve chamber with the outside atmosphere, a second communication channel for communicating the check valve chamber with a fire detecting pipe starting main pipeline and a third communication channel for communicating the control valve chamber with a fire extinguishing agent spraying main pipeline, wherein a communication port for communicating the spray head connecting channel with the control valve chamber is positioned between a communication port for communicating the fire detecting pipe connecting channel with the control valve chamber and the third communication channel; the check valve spool is movably arranged in the check valve chamber, a first valve port is formed at the joint of the check valve chamber and the second communication channel, and the check valve spool is provided with a first blocking position for blocking the first valve port and a first opening position for opening the first valve port; a first elastic member that applies an elastic force toward the first port to the check valve spool; the control valve spool is movably arranged in the control valve chamber, the first communication channel and the fire detecting pipe connection channel are separated from the spray head connection channel and the fire extinguishing agent spraying main pipeline by the control valve spool, a second valve port is formed at the connection part of the control valve chamber and the third communication channel, the control valve spool is provided with a second plugging position for plugging the second valve port and a second opening position for opening the second valve port, and the fire extinguishing agent spraying main pipeline is communicated with the spray head connection channel under the condition that the control valve spool is positioned at the second opening position; and the second elastic piece applies elastic force towards the second valve port to the valve core of the control valve.

In one embodiment, the space of the check valve chamber above the check valve spool forms a space to be compressed, and the check valve spool is provided with a pressure relief channel that communicates the space to be compressed with the first communication channel when the check valve spool is in the first blocking position.

In one embodiment, an upper surface of the check valve spool is provided with a mounting groove recessed downward, and the first elastic member is disposed in the mounting groove.

In one embodiment, a plurality of air release holes communicated with the mounting groove are formed in the outer side wall of the check valve core, the air release holes are arranged around the circumferential outer side of the mounting groove, and the mounting groove and the air release holes form a pressure release channel.

In one embodiment, the fire detection pipe starting main pipeline and the fire extinguishing agent spraying main pipeline both extend along a preset direction n, and the chamber units are a plurality of in interval arrangement along the preset direction n.

In one embodiment, the ratio of the maximum value of the outer diameter of the valve core of the control valve to the aperture of the second valve port is between 2 and 3, and/or the aperture of the second valve port and the channel inner diameter of the nozzle head connecting channel are greater than or equal to 6mm.

In an embodiment, visit firetube and start the trunk line and spout the trunk line and put the direction m interval arrangement of direction n along the perpendicular to with the fire extinguishing agent, visit firetube and start the trunk line, second intercommunication passageway and check valve cavity along direction o and arrange, the fire extinguishing agent spouts puts trunk line, third intercommunication passageway and control valve cavity along direction o and arranges, direction n and direction m are preset to direction o perpendicular to, first intercommunication passageway, visit firetube interface channel and shower nozzle interface channel all extend along direction m.

In one embodiment, the valve body comprises a valve body, a check valve plugging cover and a control valve plugging cover, wherein a check valve mounting hole and a control valve mounting hole are formed in the outer surface of the valve body, the check valve plugging cover is plugged at the orifice of the check valve mounting hole to form a check valve chamber, the control valve plugging cover is plugged at the orifice of the control valve mounting hole to form a control valve chamber, a first elastic piece abuts against between the check valve plugging cover and a check valve core, and a second elastic piece abuts against between the control valve plugging cover and the control valve core, wherein the check valve mounting hole comprises a first large-diameter section and a first necking section, the opening part of the first necking section, which is far away from the first large-diameter section, forms a first valve port, the hole wall of the first necking section is a first conical surface, the check valve core is provided with a first conical surface matched with the first conical surface, and a first annular sealing ring is arranged between the first conical surface and the second conical surface; and/or the control valve mounting hole comprises a second large-diameter section and a second necking section, a mouth part of the second necking section, which is far away from the second large-diameter section, forms a second valve port, the hole wall of the second necking section is a third conical surface, the valve core of the control valve is provided with a fourth conical surface matched with the third conical surface, and a second annular sealing ring is arranged between the third conical surface and the fourth conical surface.

In one embodiment, the valve body includes a valve body, a check valve plugging cover and a control valve plugging cover, a check valve mounting hole and a control valve mounting hole are provided on an outer surface of the valve body, the check valve plugging cover is plugged at an orifice of the check valve mounting hole to form a check valve chamber, the control valve plugging cover is plugged at an orifice of the control valve mounting hole to form a control valve chamber, the first elastic member abuts against between the check valve plugging cover and a check valve core, the second elastic member abuts against between the control valve plugging cover and the control valve core, wherein a third annular sealing ring is provided between the control valve core and a hole wall of the control valve mounting hole, and the third annular sealing ring is located below the first communicating channel and the fire detecting pipe connecting channel and above the spray head connecting channel in an extending direction of the control valve mounting hole.

According to another aspect of the utility model, a fire extinguishing apparatus is provided, include: the fire extinguishing storage bottle comprises a bottle body, a container valve and a release pipe, wherein the container valve and the release pipe are arranged on the bottle body; the fire detection pipe starting main pipeline of the valve group is connected with the container valve, and the fire extinguishing agent spraying main pipeline of the valve group is connected with the release pipe; the fire detecting pipe is communicated with a fire detecting pipe connecting channel of the valve group; and the spray head is communicated with the spray head connecting channel of the valve group.

Use the technical scheme of the utility model, when a plurality of protection zones of needs protection, can set up a plurality of valves to the visit firetube that makes a plurality of valves starts the trunk line and communicates each other, and the fire extinguishing agent of a plurality of valves is spouted and is put the trunk line and be linked together. The fire detecting tube and the spray head in each protection area are respectively connected with the fire detecting tube connecting channel and the spray head connecting channel in the cavity unit of the corresponding valve group. When the fire detecting pipe in one protection area is heated and broken, the pressure in the check valve chamber and the control valve chamber communicated with the fire detecting pipe connecting channel corresponding to the fire detecting pipe is reduced, so that the check valve core cannot be pressed by the first elastic piece in the chamber unit, the fire detecting pipe starts gas in the main pipeline to jack the check valve core, and the gas is discharged from the fire detecting pipe connecting channel after the check valve core is jacked, 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 enters the main extinguishing agent discharge pipe. The fire extinguishing agent entering the fire extinguishing agent spraying main pipeline can push the control valve spool in the control valve chamber with pressure released to a second opening position, so that the fire extinguishing agent can be sprayed out through the nozzle connecting channel, and finally the fire extinguishing agent is sprayed to the corresponding protection area through the nozzle connected with the nozzle connecting channel, and the purpose of extinguishing the fire in the protection area is achieved. Above-mentioned structure makes and need not set up fire extinguishing controller and signal feedback device in a plurality of protection districts of protection, has realized that one set of extinguishing device passes through the mechanical control mode, protects a plurality of schemes of being put out a fire the space to the product simple structure of this scheme, the reliability is high, and is with low costs.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention. On the attached sheet

In the figure:

FIG. 1 shows a schematic view of a prior art fire suppression apparatus;

figure 2 shows a schematic perspective view of an embodiment of a valve group according to the present invention;

fig. 3 shows a schematic top view of the valve block of fig. 2;

FIG. 4 shows a cross-sectional view taken in the direction I-I of the valve block of FIG. 3;

figure 5 shows an enlarged structural schematic at a of the valve group of figure 4;

figure 6 shows an enlarged structural schematic at B of the valve group of figure 4;

FIG. 7 shows a cross-sectional view in the L-L direction of the valve block of FIG. 3; and

fig. 8 shows a cross-sectional view in the direction K-K of the valve block of fig. 3.

Wherein the figures include the following reference numerals:

7. a space to be extruded; 10. a valve body; 11. a valve body; 12. a check valve plugging cover; 13. a control valve plugging cover; 20. starting the main pipeline by the fire detecting pipe; 30. a main fire extinguishing agent spraying pipeline; 40. a chamber unit; 41. a check valve chamber; 411. a first conical surface; 42. a control valve chamber; 421. a third conical surface; 422. chamfering; 43. a first communicating passage; 44. the fire detecting pipe is connected with the channel; 45. a nozzle connecting passage; 46. a second communicating passage; 47. a third communicating passage; 48. a first valve port; 49. a second valve port; 50. a check valve cartridge; 51. installing a groove; 52. an air release hole; 53. a pressure relief channel; 60. a first elastic member; 70. a control valve spool; 80. a second elastic member; 90. a first annular seal ring; 100. a second annular seal ring; 110. a third annular seal ring; 120. starting the joint; 130. a fire extinguishing agent pipe joint; 140. a fire detection pipe joint; 150. and (5) spraying a pipeline joint.

Detailed Description

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

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing the embodiments of the invention described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As shown in fig. 2 to 8, the valve group in the present embodiment includes: the fire extinguishing system comprises a valve body 10, a fire detection pipe starting main pipe 20, a fire extinguishing agent spraying main pipe 30, a chamber unit 40, a check valve spool 50, a first elastic member 60, a control valve spool 70 and a second elastic member 80. The main fire detecting pipe starting pipe 20 is a blind hole formed in the valve body 10, and the main fire detecting pipe starting pipe 20 has a first air inlet located on an outer surface of the valve body 10. The main extinguishing agent discharging pipe 30 is a blind hole formed in the valve body 10 and spaced apart from the main fire detecting pipe starting pipe 20, and the main extinguishing agent discharging pipe 30 has a second air inlet formed in an outer surface of the valve body 10. The chamber unit 40 comprises a check valve chamber 41, a control valve chamber 42, a first communication channel 43 for communicating the check valve chamber 41 with the control valve chamber 42, a fire detecting pipe connection channel 44 and a spray head connection channel 45 for communicating the control valve chamber 42 with the outside atmosphere, a second communication channel 46 for communicating the check valve chamber 41 with the fire detecting pipe starting main pipe 20, and a third communication channel 47 for communicating the control valve chamber 42 with the fire extinguishing agent discharging main pipe 30, wherein a communication port for communicating the spray head connection channel 45 with the control valve chamber 42 is located between a communication port for communicating the fire detecting pipe connection channel 44 with the control valve chamber 42 and the third communication channel 47. A check valve spool 50 is movably disposed in the check valve chamber 41, a junction of the check valve chamber 41 and the second communication passage 46 forming the first port 48, the check valve spool 50 having a first blocking position blocking the first port 48 and a first open position opening the first port 48; the first elastic member 60 applies an elastic force to the check valve spool 50 toward the first port 48. The control valve spool 70 is movably disposed in the control valve chamber 42, the control valve spool 70 separates the first communicating channel 43 and the fire detecting pipe connecting channel 44 from the nozzle connecting channel 45 and the main fire extinguishing agent discharging pipeline 30, a second valve port 49 is formed at a connecting position of the control valve chamber 42 and the third communicating 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, and the main fire extinguishing agent discharging pipeline 30 is communicated with the nozzle connecting channel 45 when the control valve spool 70 is located at the second opening position. The second elastic member 80 applies an elastic force to the control valve spool 70 toward the second port 49.

Use the technical scheme of this embodiment, when a plurality of protection zones need to be protected, can set up a plurality of valves to make the visit firetube of a plurality of valves start trunk line 20 and communicate each other, the fire extinguishing agent of a plurality of valves spouts puts trunk line 30 and is linked together. The fire detector tube and the spray head in each protected area are connected to a fire detector tube connection channel 44 and a spray head connection channel 45, respectively, in the chamber unit 40 of the corresponding valve block. When the fire detecting tube in one of the protection areas is heated and broken, the pressure in the check valve chamber 41 and the control valve chamber 42 communicated with the fire detecting tube connecting channel 44 corresponding to the fire detecting tube is reduced, so that the check valve core 50 cannot be pressed by the first elastic member 60 in the chamber unit 40, the fire detecting tube starts the gas in the main pipe 20 to jack up the check valve core 50, and the gas is discharged from the fire detecting tube connecting channel 44 after the check valve core 50 is jacked up, so that the container valve of the fire extinguishing storage bottle is opened. Once the container valve is opened, the fire suppressant in the fire suppressant reservoir will enter the main fire suppressant discharge line 30. The fire extinguishing agent entering the main fire extinguishing agent discharging pipeline 30 can push the control valve spool 70 in the control valve chamber 42 with the pressure released to the second opening position, so that the fire extinguishing agent can be sprayed out from the nozzle connecting channel 45, and finally the fire extinguishing agent is sprayed to the corresponding protection area through the nozzle connected with the nozzle connecting channel 45, thereby achieving the purpose of extinguishing the fire in the protection area. Above-mentioned structure makes and need not set up fire extinguishing controller and signal feedback device in a plurality of protection districts of protection, has realized that one set of extinguishing device passes through the mechanical control mode, protects a plurality of schemes of being put out a fire the space to the product simple structure of this scheme, the reliability is high, and is with low costs.

In order to further reduce the production cost and reduce the number of parts, the inventor proposes that a plurality of valve banks can be structurally integrated into one valve bank, an integrated fire detecting tube starting main pipe 20 and a fire extinguishing agent spraying main pipe 30 are processed on the integrated valve body structure, and a plurality of chamber units 40 are processed. Specifically, in the present embodiment, the fire detecting pipe starting main pipe 20 and the fire extinguishing agent discharging main pipe 30 both extend along the preset direction n, and the chamber unit 40 is a plurality of units arranged at intervals along the preset direction n. The flame-detecting tube and the spray head in each protected area are connected with a flame-detecting tube connecting channel 44 and a spray head connecting channel 45 in the corresponding chamber unit 40 of the valve group respectively. When the fire detecting tube in one of the protection areas is heated and broken, the pressure in the check valve chamber 41 and the control valve chamber 42 communicated with the fire detecting tube connecting channel 44 corresponding to the fire detecting tube is reduced, so that the check valve core 50 cannot be pressed by the first elastic member 60 in the chamber unit 40, the fire detecting tube starts the gas in the main pipe 20 to jack up the check valve core 50, and the gas is discharged from the fire detecting tube connecting channel 44 after the check valve core 50 is jacked up, so that the container valve of the fire extinguishing storage bottle is opened. Once the container valve is opened, the fire suppressant in the fire suppressant reservoir will enter the main fire suppressant discharge line 30. The fire extinguishing agent entering the main fire extinguishing agent discharging pipeline 30 can push the control valve spool 70 in the control valve chamber 42 with the pressure released to the second opening position, so that the fire extinguishing agent can be sprayed out from the nozzle connecting channel 45, and finally the fire extinguishing agent is sprayed to the corresponding protection area through the nozzle connected with the nozzle connecting channel 45, thereby achieving the purpose of extinguishing the fire in the protection area. The structure can reduce processing steps, improve production efficiency and reduce cost.

However, if a plurality of valve blocks are structurally integrated into one valve block, it is necessary to consider whether this structure causes a problem that, once a fire extinguishing agent is sprayed to one protected area, the other protected areas may erroneously spray the fire extinguishing agent. Specifically, in the structure of the present embodiment, the control valve spool 70 abuts against the second port 49 by the resultant force of the gas pressure in the control valve chamber 42 and the elastic force of the second elastic member 80. The fire extinguishing agent in the main fire extinguishing agent discharging pipe 30 exerts an upward pressure on the control valve spool 70 that is less than the resultant force, so that the fire extinguishing agent pushes the control valve spool 70 to move to the second open position only when the pressure of the control valve chamber 42 in the chamber unit 40 corresponding to the protected area on fire is released. For the chamber units 40 corresponding to the other protection areas without fire, because the control valve chamber 42 still has the preset pressure, even if the fire extinguishing agent exerts an upward pushing force on the control valve spool 70, the control valve spool 70 is still kept at the second blocking position under the resultant force of the chamber pressure and the elastic force, and finally, the fire extinguishing agent is not sprayed in the protection areas without fire. Therefore, the structure can realize the purpose of extinguishing fire in a specific protection area, the fire extinguishment among a plurality of protection areas is not interfered with each other, and the phenomenon that the fire extinguishing agent is sprayed into the protection areas which are not on fire cannot occur.

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

It should be noted that the valve set shown in the drawings can protect three protection zones, and in other embodiments, two chamber units 40 or more than 3 chamber units 40 may be provided to meet the requirement of different numbers of protection zones.

As shown in fig. 2, in the present embodiment, the main squib starting pipe 20 is provided with a starting joint 120 at a first air inlet formed on the surface of the valve block. The main fire extinguishing agent discharging pipe 30 is provided with a fire extinguishing agent pipe joint 130 at a second air inlet formed on the surface of the valve block. Above-mentioned structure makes valves and the storage bottle of putting out a fire can high-speed joint, improves connection efficiency. Of course, in other embodiments not shown in the figures, the activation fitting may be provided only at the first air inlet, or the fire suppressant pipe fitting may be provided only at the second air inlet.

As shown in fig. 2, in the present embodiment, a fire detecting pipe joint 140 is disposed at the fire detecting pipe connecting channel 44. A spray pipe joint 150 is arranged at the spray head connecting passage 45. The structure enables the valve group, the fire detecting pipe and the spray head to be quickly connected, so that the connection efficiency is improved. Of course, in other embodiments not shown in the figures, a fire detector pipe joint may be provided only at the fire detector pipe connecting passage, or a blow-off pipe joint may be provided only at the spray head connecting passage.

The connection process and state of the valve block and the fire extinguishing storage bottle are described in detail as follows:

first, the starting connector 120 and the fire extinguishing agent pipe connector 130 are connected to the container valve and the release pipe of the fire extinguishing storage bottle, respectively, and are fixed. When the connection is stable, the fire detecting pipe starts the main pipe 20 to intake air. The gas entering the main fire detection pipe 20 is branched into each of the second communication passages 46 and pushes up each of the check valve spools 50 to the first open position. When each check valve spool 50 moves to the first open position, gas within each second communication channel 46 will enter the corresponding check valve chamber 41 and control valve chamber 42 through the corresponding first port 48. After each check valve spool 50 is moved to the first open position for a certain time, each check valve spool 50 is restored to the first blocking position by the gas pressure and the elastic force of the first elastic member 60. The above-described process is a process of pressurizing the check valve chamber 41 and the control valve chamber 42 of each chamber unit 40.

In the present embodiment, the ratio of the maximum value of the outer diameter of the control valve spool 70 to the bore diameter of the second port 49 is between 2 and 3. Specifically, in this embodiment, the control valve core 70 is a columnar rotator, the lower surface of the control valve core 70 closes the second valve port 49, the area of the upper surface of the control valve core 70 is larger than that of the lower surface, and the difference in the upper and lower areas allows the remaining control valve chambers 42 that are not releasing pressure to have sufficient force to push against the pressure during spraying when the fire extinguishing agent is sprayed, i.e., to ensure that the control valve core 70 in the chamber unit 40 corresponding to the protection area that is not on fire is not pushed open by the fire extinguishing agent. Preferably, in the present embodiment, the ratio of the maximum value of the outer diameter of the control valve spool 70 to the hole diameter of the second port 49 is 2.1.

In this embodiment, the diameter of the second valve port 49 and the inner diameter of the nozzle connecting passage 45 are 6mm or more. The above structure can ensure that the liquid fire extinguishing agent can be smoothly sprayed out through the second valve port 49 and the head connecting passage 45.

As shown in fig. 4 and 5, in the present embodiment, the space of the check valve chamber 41 located above the check valve spool 50 forms the space to be pressed 7. When the check valve spool 50 moves upward, a phenomenon of pressing the gas in the closed space is generated, which may hinder the upward movement of the check valve spool 50, resulting in the inhibition of pressurizing the chamber unit 40. In order to solve the above problem, in the present embodiment, the check valve spool 50 is provided with the relief passage 53, and in the case where the check valve spool 50 is located at the first blocking position, the relief passage 53 communicates the space to be pressed 7 with the first communication passage 43. The structure enables the gas in the extrusion space 7 to be discharged through the pressure relief channel 53 in the process of upward movement of the check valve core 50, so that the gas is quickly expelled, and the smoothness of upward movement of the check valve core 50 is improved. Here, the "upper space" refers to a space on the side of the check valve spool 50 away from the first port 48.

As shown in fig. 4 and 5, in the present embodiment, the upper surface of the check valve spool 50 is provided with a mounting groove 51 recessed downward, and the first elastic member 60 is disposed in the mounting groove 51. The structure facilitates the positioning and installation of the first elastic element 60, and ensures that the first elastic element 60 is always positioned at the working position.

As shown in fig. 4 and 5, in the present embodiment, a plurality of relief holes 52 communicating with the mounting groove 51 are provided on the outer side wall of the check valve spool 50, the plurality of relief holes 52 are surrounded on the circumferential outer side of the mounting groove 51, and the mounting groove 51 and the plurality of relief holes 52 form a relief passage 53. The above structure uses the installation groove 51 as a part of the relief passage 53, so that the processing steps of the check valve core 50 are reduced, and the processing difficulty is reduced.

As shown in fig. 2 to 4, 7 and 8, in the present embodiment, the main fire detecting pipe starting pipe 20 and the main fire extinguishing agent discharging pipe 30 are arranged at an interval in a direction m perpendicular to the preset direction n, the main fire detecting pipe starting pipe 20, the second communicating channel 46 and the check valve chamber 41 are arranged in a direction o, the main fire extinguishing agent discharging pipe 30, the third communicating channel 47 and the control valve chamber 42 are arranged in a direction o, the direction o is perpendicular to the preset direction n and the direction m, and the first communicating channel 43, the fire detecting pipe connecting channel 44 and the nozzle connecting channel 45 all extend in the direction m. The structure enables the fire detecting pipe to start the main pipeline 20, the fire extinguishing agent spraying main pipeline 30 and each cavity unit 40 to be reasonable in layout, facilitates gas-liquid circulation and guarantees fire extinguishing effect. In addition, the above structure facilitates the processing of the valve body 10.

As shown in fig. 2, 4, 7 and 8, in the present 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 mounting hole and a control valve mounting hole are provided on an outer surface of the valve body 11, the check valve plugging cover 12 is plugged at an orifice of the check valve mounting hole to form a check valve chamber 41, the control valve plugging cover 13 is plugged at an orifice of the control valve mounting 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 core 50, and the second elastic member 80 abuts between the control valve plugging cover 13 and the control valve core 70. The structure is simple, the check valve plugging cover 12 plays a role of limiting the check valve core 50, and the control valve plugging cover 13 plays a role of limiting the control valve core 70.

As shown in fig. 4 and 5, in the present embodiment, the check valve mounting hole includes a first large diameter section and a first neck-reducing section, a mouth of the first neck-reducing section far from the first large diameter section forms the first valve port 48, a hole wall of the first neck-reducing section is a first tapered surface 411, the check valve core 50 has a second tapered surface adapted to the first tapered surface 411, and a first annular sealing ring 90 is disposed between the first tapered surface 411 and the second tapered surface. Specifically, the first annular sealing ring 90 is engaged with the first tapered surface 411 and has a certain amount of compression to achieve a sealing effect. When the check valve spool 50 is in the first blocking position, the main fire detecting pipe starting pipe 20 and the second communication passage 46 form a first space, and the portion of the check valve chamber 41 above the first annular seal ring 90, the control valve chamber 42, the first communication passage 43, and the fire detecting pipe connection passage 44 form a second space, which are independent of each other. Thus, when a certain protection area catches fire, the pressure of the first space and the pressure of the second space corresponding to the protection area are reduced, the pressure in the second space corresponding to the protection area which does not catch fire can be sealed through the first annular sealing ring 90 without leakage, the purpose that fire extinguishment among a plurality of protection areas is not interfered with each other is achieved, and the phenomenon that fire extinguishing agents are sprayed into the protection area which does not catch fire cannot occur.

As shown in fig. 4 and 6, in the present embodiment, the control valve mounting hole includes a second large diameter section and a second neck-down section, a mouth portion of the second neck-down section far from the second large diameter section forms the second valve port 49, a hole wall of the second neck-down section is a third conical surface 421, the control valve spool 70 has a fourth conical surface adapted to the third conical surface 421, and a second annular sealing ring 100 is disposed between the third conical surface 421 and the fourth conical surface. Specifically, second annular seal ring 100 engages third conical surface 421 and is compressed to some extent to provide a seal. The structure enables that, after the fire extinguishing agent enters the main fire extinguishing agent spraying pipe line 30, for the control valve mounting hole corresponding to the protection area not on fire, the second annular sealing ring 100 can seal the third conical surface 421 and the fourth conical surface, so as to prevent the fire extinguishing agent from entering the spraying pipe joint 150 corresponding to the protection area not on fire through the gap between the third conical surface 421 and the fourth conical surface, thereby realizing the purpose of mutual noninterference of fire extinguishing between a plurality of protection areas, and avoiding the generation of the phenomenon of spraying the fire extinguishing agent into the protection area not on fire. Of course, in other embodiments not shown in the figures, only the first annular sealing ring or only the second annular sealing ring may be provided.

As shown in fig. 4 and 6, in the present embodiment, a third annular seal ring 110 is provided between the control valve spool 70 and the wall of the control valve mounting hole, and the third annular seal ring 110 is located below the first communication passage 43 and the flame detecting pipe connection passage 44 and above the head connection passage 45 in the extending direction of the control valve mounting hole. The above structure prevents the fire extinguishing agent from entering the first communication passage 43 and the fire detecting pipe connection passage 44 when the control valve spool 70 is moved to the second open position, and prevents the fire extinguishing agent from being discharged from the fire detecting pipe joint 140. The second space is actually formed by a portion above the first annular seal 90 of the check valve chamber 41, a portion above the third annular seal 110 of the control valve chamber 42, the first communication passage 43, and the flame path connection passage 44.

As shown in fig. 4, in the present embodiment, the first communication passage 43 and the fire detecting pipe connection passage 44 in each chamber unit 40 are coaxial. The above structure allows smooth gas flow and facilitates the discharge from the fire detecting pipe connection passage 44, and in addition, the above structure facilitates the processing.

As shown in fig. 4 and 6, the control valve mounting hole is divided into an upper hole section and a lower hole section in the extending direction thereof by the first communicating channel 43 and the fire detecting pipe connecting channel 44, the control valve blocking cover 13 is located in the upper hole section, the second valve port 49 is located on the lower hole section, and the upper end of the lower hole section is provided with a chamfer 422. Specifically, a seal ring mounting groove is provided on an outer side wall of the control valve spool 70, and a third annular seal ring 110 is disposed in the seal ring mounting groove. When the control valve spool 70 is fitted into the control valve mounting hole, the position where the control valve mounting hole is connected to the first communication passage 43 and the fire detecting pipe connection passage 44 may severely compress the third annular seal ring 110, causing the third annular seal ring 110 to be damaged and thus not sealing. Therefore, the chamfer 422 is added, so that the third annular seal ring 110 can smoothly slide into the lower hole section through the chamfer 422, and the ring cutting phenomenon is prevented from being generated.

Several points need to be explained in further detail below:

1. the starting joint 120 and the fire extinguishing agent pipe joint 130 of the valve block are firmly connected with the container valve and the release pipe of the fire extinguishing storage bottle, respectively. When the pressure in the fire extinguishing storage bottle is introduced into the check valve chamber 41, the check valve core 50 is pushed upward by the pressure until the pressure is attached to the check valve plugging cover 12, the pressure in the check valve chamber 41, the portion of the control valve chamber 42 above the third annular sealing ring 110, the fire detecting pipe connecting channel 44 and the fire detecting pipe in the protection area connected to the fire detecting pipe connecting channel 44 are consistent, and at this time, the check valve core 50 moves downward by the pressure of the first elastic member 60 until the pressure is attached to the valve body 10, so that the pressures in the first space and the second space are independent of each other.

2. After the pressures of the check valve chamber 41, the portion of the control valve chamber 42 above the third annular sealing ring 110, the fire detecting pipe connecting passage 44, and the fire detecting pipe in the protection zone connected to the fire detecting pipe connecting passage 44 are the same, the control valve core 70 of the passage where the fire detecting pipe in the protection zone is not softened and exploded is fixed by the elastic force of the second elastic member 80 and the pressure of the portion of the control valve chamber 42 above the third annular sealing ring 110.

3. The fire detecting pipe in a certain protection area is softened and exploded, so that the pressure of the part above the third annular sealing ring 110 of the check valve chamber 41 and the control valve chamber 42, the pressure of the fire detecting pipe connecting passage 44 and the pressure of the part of the fire detecting pipe in the protection area connected with the fire detecting pipe connecting passage 44 are quickly leaked, the check valve spool 50 is quickly pushed by the pressure in the fire detecting pipe starting main pipe 20, the pressure is leaked, the container valve is opened, the fire extinguishing agent starts to be sprayed along the fire extinguishing agent spraying main pipe 30, the control valve spool 70 of the channel softened and exploded by the fire detecting pipe is pushed to move upwards, and the fire extinguishing agent starts to be sprayed.

An example is described in detail below:

the first elastic member has a size of 0.8 × 8 × 15 (mm), an initial elasticity of 12N, and a compressed elasticity of 22N;

the second elastic member has a size of 1.2 × 10 × 30 (mm), an initial elastic force of 19.5N, and a compressed elastic force of 58N;

if the volume of the gas cylinder is 3L, the filled perfluorohexanone is 3Kg, and the filled pressure is 2.5MPa.

After the fire detecting tube in a certain protection area is softened and blasted, the sectional area of the pressure applied to the check valve core 50 of the corresponding channel by the gas cylinder at one moment is 70.88mm ² The pressure in the cylinder is 2.5MPa, and 1.6MPa after the pressure is reduced by the container valve, so the pressure entering the check valve chamber 41 is 1.6MPa, the instant force is 113N, which is much greater than the elastic force of the spring, and the check valve core 50 can be pushed quickly.

The channel without fire extinguishing agent is not sprayed, the control valve core 70 is not moved, at this time, the part above the third annular sealing ring 110 of the control valve chamber 42 is kept consistent with the pressure in the check valve chamber 41 and is 1.6MPa, the size of the second elastic piece is 1.2 x 10 x 30 (mm), the elastic force is 19.5N in the initial state, and therefore the cross section of the pressure borne by the top of the control valve core 70 is 314.16mm ² The force given by the gas is 294.52N, and the force applied by the spring is 313.65N.

After the fire detecting tube in a certain protection area is softened and blasted, the sectional area of the valve core 70 of the control valve of the corresponding channel under the pressure of the gas cylinder at one moment is 70.88mm ² The pressure in the cylinder is 2.5MPa, the instantaneous force is 177N, and the valve core 70 of the control valve in the channel which is not sprayed can not be pushed.

As long as the check valve core 50 moves, the fire extinguishing agent pushes the control valve core 70 to be sprayed all the time, so that the force applied to the control valve core 70 after the fire extinguishing agent is sprayed is calculated finally.

After the fire extinguishing agent is sprayed, according to the ideal gas state formula, the pressure in the gas cylinder is 0.94MPa, and the cross section area of the valve core 70 of the control valve under the pressure in the gas cylinder is 314.16mm ² The thrust force is 295N, which is much larger than the elastic force of the spring, so the valve core 70 of the control valve is always in the state of being attached to the blocking cover 13 of the control valve in the process of spraying the fire extinguishing agent.

The application also provides a fire extinguishing apparatus, the embodiment according to the fire extinguishing apparatus of the application includes: the fire extinguishing device comprises a fire extinguishing storage bottle, a valve group, a fire detecting pipe and a spray head. Wherein, the storage bottle of putting out a fire includes the bottle body and sets up container valve and the release pipe on the bottle body. The valve group is the valve group, a fire detecting pipe starting main pipeline 20 of the valve group is connected with the container valve, and a fire extinguishing agent spraying main pipeline 30 of the valve group is connected with the release pipe; the fire detection tube is communicated with a fire detection tube connecting channel 44 of the valve group; the spray head communicates with a spray head connection channel 45 of the valve block. Because above-mentioned valves have simple structure, the reliability is high, advantage with low costs, consequently the extinguishing device who has it also has above-mentioned advantage.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A valve manifold, comprising:

a valve body (10);

the fire detecting pipe starting main pipeline (20) is a blind hole formed in the valve body (10), and the fire detecting pipe starting main pipeline (20) is provided with a first air inlet located on the outer surface of the valve body (10);

the fire extinguishing agent spraying main pipeline (30) is a blind hole formed in the valve body (10) and is arranged at an interval with the fire detecting pipe starting main pipeline (20), and the fire extinguishing agent spraying main pipeline (30) is provided with a second air inlet located on the outer surface of the valve body (10);

a chamber unit (40) comprising a check valve chamber (41), a control valve chamber (42), a first communication channel (43) communicating the check valve chamber (41) with the control valve chamber (42), a fire detection pipe connection channel (44) and a spray head connection channel (45) communicating the control valve chamber (42) with the outside atmosphere, a second communication channel (46) communicating the check valve chamber (41) with the fire detection pipe starting main pipe (20), and a third communication channel (47) communicating the control valve chamber (42) with the fire extinguishing agent discharging main pipe (30), wherein a communication port of the spray head connection channel (45) communicating with the control valve chamber (42) is located between a communication port of the fire detection pipe connection channel (44) communicating with the control valve chamber (42) and the third communication channel (47);

a check valve spool (50) movably disposed within the check valve chamber (41), a junction of the check valve chamber (41) and the second communication passage (46) forming a first port (48), the check valve spool (50) having a first blocking position blocking the first port (48) and a first open position opening the first port (48);

a first elastic member (60) that applies an elastic force to the check valve spool (50) toward the first port (48);

a control valve spool (70) movably disposed in the control valve chamber (42), the control valve spool (70) separating the first communication channel (43) and the fire detecting pipe connection channel (44) from the nozzle connection channel (45) and the main fire extinguishing agent discharging pipe (30), a connection of the control valve chamber (42) and the third communication channel (47) forming a second valve port (49), the control valve spool (70) having a second blocking position blocking the second valve port (49) and a second opening position opening the second valve port (49), the main fire extinguishing agent discharging pipe (30) being in communication with the nozzle connection channel (45) with the control valve spool (70) in the second opening position;

a second elastic member (80) that applies an elastic force to the control valve spool (70) toward the second valve port (49).

2. A valve group according to claim 1, characterized in that the space of the check valve chamber (41) above the check valve spool (50) forms a space (7) to be pressurized, and in that a pressure relief channel (53) is provided in the check valve spool (50), and in that the pressure relief channel (53) communicates the space (7) to be pressurized with the first communication channel (43) when the check valve spool (50) is in the first plugging position.

3. The valve manifold according to claim 2, wherein an upper surface of the check valve spool (50) is provided with a mounting groove (51) recessed downward, and the first elastic member (60) is disposed in the mounting groove (51).

4. The valve manifold according to claim 3, wherein a plurality of air release holes (52) communicating with the mounting groove (51) are provided on an outer side wall of the check valve spool (50), the plurality of air release holes (52) are surrounded on a circumferential outer side of the mounting groove (51), and the mounting groove (51) and the plurality of air release holes (52) form the air release passage (53).

5. Valve group according to claim 1, characterized in that the main fire detecting tube activation conduit (20) and the main fire extinguishing agent discharge conduit (30) both extend along a preset direction n, the chamber units (40) being a plurality spaced along the preset direction n.

6. Valve manifold according to claim 5, 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, and/or the aperture of the second valve port (49) to the channel inner diameter of the nozzle tip connection channel (45) is equal to or larger than 6mm.

7. Valve group according to claim 5, characterized in that the main fire detector tube activation duct (20) is spaced from the main fire detector tube discharge duct (30) along a direction m perpendicular to the preset direction n, the main fire detector tube activation duct (20), the second communication channel (46) and the check valve chamber (41) are arranged along a direction o, the main fire detector tube discharge duct (30), the third communication channel (47) and the control valve chamber (42) are arranged along a direction o perpendicular to the preset direction n and the direction m, and the first communication channel (43), the fire detector tube connection channel (44) and the nozzle connection channel (45) all extend along the direction m.

8. The valve group according to claim 1, wherein the valve body (10) comprises a valve 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 an outer surface of the valve body (11), the check valve plugging cover (12) is plugged at an orifice of the check valve mounting hole to form the check valve chamber (41), the control valve plugging cover (13) is plugged at an 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), the second elastic member (80) abuts between the control valve plugging cover (13) and the control valve spool (70), wherein,

the check valve mounting hole comprises a first large-diameter section and a first necking section, the mouth of the first necking section, which is far 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 core (50) is provided with a second conical surface matched with the first conical surface (411), and a first annular sealing ring (90) is arranged between the first conical surface (411) and the second conical surface; and/or the presence of a gas in the atmosphere,

the control valve mounting hole comprises a second large-diameter section and a second necking section, a mouth part, far away from the second large-diameter section, of the second necking 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) is provided with a fourth conical surface matched with the third conical surface (421), and a second annular sealing ring (100) is arranged between the third conical surface (421) and the fourth conical surface.

9. Valve group according to claim 1, characterized in that the valve body (10) comprises a valve 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 outer surface of the valve body (11), the check valve plugging cover (12) is plugged at the orifice of the check valve mounting hole to form the check valve chamber (41), the control valve plugging cover (13) is plugged at the orifice of the control valve mounting hole to form the control valve chamber (42), the first elastic member (60) abuts against between the check valve plugging cover (12) and the check valve spool (50), the second elastic member (80) abuts against between the control valve plugging cover (13) and the control valve spool (70), wherein a third annular sealing ring (110) is provided between the control valve spool (70) and the orifice wall of the control valve mounting hole, the third annular sealing ring (110) is located above the first communication channel (43) in the extension direction of the control valve mounting hole and is located above the connection channel (44) of the spray head (45).

10. A fire suppression apparatus, comprising:

the fire extinguishing storage bottle comprises a bottle body, a container valve and a release pipe, wherein the container valve and the release pipe are arranged on the bottle body;

valve group, characterized in that it is a valve group according to any of claims 1 to 9, the main fire-finding pipe activation line (20) of which is connected to the container valve and the main fire-extinguishing agent discharge line (30) of which is connected to the release line;

a flame probe tube communicating with a flame probe tube connection channel (44) of the valve block;

a spray head in communication with a spray head connection passage (45) of the valve block.

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