Fire detection tube type fire extinguishing device

Abstract

This utility model relates to the field of fire extinguishing technology, specifically a fire detection tube type fire extinguishing device. The purpose is to provide a fire detection tube type fire extinguishing device. The technical solution is a fire detection tube type fire extinguishing device, including an alarm, a fire detection tube, and a fire extinguishing agent bottle equipped with a container valve assembly; its characteristic is that it also includes a direct spray pipe; the fire detection tube and the direct spray pipe are connected to the container valve assembly via a T-joint.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing technology, specifically a fire detection tube type fire extinguishing device. Background Technology

[0002] The fire detection tube type fire extinguishing system is a simple, low-cost, and highly reliable independent automatic fire extinguishing system that does not rely on a power source, specialized smoke and temperature detectors, or complex equipment and pipelines. This device relies on its own stored pressure; once the fire detection tube (made of heat-sensitive material that softens and bursts at a preset temperature) ruptures due to heat, it immediately releases the extinguishing agent to extinguish the fire. The device mainly consists of a pressure vessel filled with the extinguishing agent, a container valve, and a fire detection tube or release pipe with the extinguishing agent release function. In use, the fire detection tube should be placed near or directly above the area where the fire source is most likely to occur, and multiple detection points along the tube are used for fire detection. Once a fire occurs, the fire detection tube softens and bursts at the point of highest heat, and the extinguishing medium is then released into the protected area through the fire detection tube body or nozzle.

[0003] However, existing fire detection devices still have the following shortcomings: First, after the fire detection tube is burned by an open flame, the high-pressure gas ejected from the pressure relief point will push the fire detection tube away from the ignition point, thus reducing the fire extinguishing efficiency; Second, the fire detection tube will only activate after it is burned by an open flame. If the temperature generated by the open flame is insufficient, or if there is no open flame in the early stage of the fire, the fire detection tube will not be able to function.

[0004] Therefore, designing a fire detection tube type fire extinguishing device to solve the above problems is of great significance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and provide a fire detection tube type fire extinguishing device.

[0006] The technical solution of this utility model is: A fire detection tube type fire extinguishing device includes an alarm, a fire detection tube, and a fire extinguishing agent bottle equipped with a container valve assembly; characterized in that it also includes a direct spray pipe; the fire detection tube and the direct spray pipe are connected to the container valve assembly via a tee connector.

[0007] The fire detection tube is equipped with a spiral sleeve for tube laying.

[0008] The spiral sleeve includes a positioning metal wire that is spirally wound around the outside of the fire probe tube, and the positioning metal wire is wrapped with an insulating sleeve.

[0009] The container valve assembly includes a container valve head, a first pressure gauge, a second pressure gauge, a switching valve, and a trigger tube.

[0010] The first pressure gauge is connected to the bottle body pressure gauge interface of the container valve head; the switching valve is connected to the switching valve interface of the container valve head; one end of the trigger tube is connected to the driving gas outlet of the container valve head through the main valve, and the other end is connected to the driving gas inlet of the switching valve; the second pressure gauge is connected to the flame probe pressure gauge interface of the switching valve; the alarm is electrically connected to the pressure switch, and the pressure switch is connected to the pressure switch interface of the switching valve.

[0011] The inlet of the tee connector is connected to the fire detection tube interface of the conversion valve; one end of the fire detection tube is connected to one outlet of the tee connector and the other end is connected to a plug; one end of the direct injection pipe is connected to the other outlet of the tee connector through a switch valve and the other end is connected to the direct injection nozzle.

[0012] The switching valve is a solenoid valve; a separate controller is electrically connected to the pressure switch, the switching valve, and the smoke detector.

[0013] The insulating sleeve is made of flame-retardant sheath material.

[0014] The beneficial effects of this utility model are: In this invention, when the fire detection tube is damaged and loses pressure, the position of the valve block inside the container valve head changes. At this time, the passage between the extinguishing agent bottle and the fire detection tube is opened, and the high-pressure extinguishing agent in the extinguishing agent bottle is sprayed out from the damaged port of the fire detection tube, thereby extinguishing the fire at the ignition point. When there is no open flame, the switch valve can be opened directly to release the pressure in the fire detection tube loop. After the pressure balance inside the container valve head is broken, the valve block changes position, which opens the passage between the extinguishing agent bottle and the fire detection tube, and the high-pressure extinguishing agent in the extinguishing agent bottle is sprayed out through the direct spray pipe. In this invention, a spiral sleeve is provided on the outside of the fire detector tube, and the spiral sleeve is arranged and shaped along the ignition point. Then, the spiral sleeve is fixed to the cabinet body by cable ties or a clamp structure, so that the fire detector tube between adjacent cable ties will not be severely deformed under air pressure after it breaks, causing the airflow direction to deviate from the ignition point, thereby improving the fire extinguishing effect. In addition, for some ignition points far from the cabinet installation position, since the fire detector tube cannot be directly attached to the ignition point, the spiral sleeve can be used to position the fire detector tube closer to the ignition point.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the container valve assembly of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the clamp assembly of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the base assembly of this utility model.

[0020] Figure 5 yes Figure 1 A magnified structural diagram of part A in the middle.

[0021] Figure 6 This is a cross-sectional structural diagram of the spiral sleeve of the present invention.

[0022] Figure 7 yes Figure 1 A magnified structural diagram of section B.

[0023] Figure 8 This is a front view structural schematic diagram of the container valve assembly of this utility model.

[0024] Figure 9 This is a left-side structural schematic diagram of the container valve assembly of this utility model.

[0025] Figure label: 1. Alarm device; 2. Extinguishing agent cylinder; 3. Container valve assembly; 4. Clamp assembly; 5. Base assembly; 6. Fire detection tube; 7. Pipe spiral sleeve; 8. End plug; 301. Tee connector; 302. Pressure switch; 303. Container valve head; 304. First pressure gauge; 305. Second pressure gauge; 306. Direct spray pipe; 307. Direct spray nozzle; 308. Switch valve; 309. Trigger tube; 310. Main valve of extinguishing agent cylinder; 311. Diverter valve; 401. Inner plate of clamp; 402. Outer plate of clamp; 403. Clamp ring; 404. Clamp bolt; 501. Inner side plate of the base; 502. Base support plate; 503. Base bolts; 701. Insulating sleeve; 702. Positioning wire. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] To better understand the purpose, function, and specific design of this utility model, the following detailed description is provided in conjunction with the accompanying drawings.

[0032] Reference Figures 1-9 The fire detection tube type fire extinguishing device includes an extinguishing agent bottle 2, a container valve assembly 3, an alarm 1, a fire detection tube 6, and a direct spray pipe 306.

[0033] The extinguishing agent bottle is used to store extinguishing agents (such as heptafluoropropane, carbon dioxide, etc.), and a container valve assembly 3 is installed on the top of the extinguishing agent bottle 2. The container valve assembly 3 includes a container valve head 303, a first pressure gauge 304, a second pressure gauge 305, a switching valve 311, and a trigger tube 309.

[0034] The container valve head 303 integrates all key interfaces and serves as the control center and distribution hub for the release of the extinguishing agent. The container valve head 303 is equipped with a cylinder pressure gauge interface, a fire detector pressure gauge interface, a fire detector interface, a pressure switch interface, a driving gas inlet, and a driving gas outlet.

[0035] The container valve head 303 is also provided with a switching valve interface, and one end of the switching valve 311 is connected to the switching valve interface of the container valve head 303. The switching valve is provided with the driving gas inlet, the flame probe pressure gauge interface, the flame probe interface, and the pressure switch interface. The driving gas inlet is located at the other end of the switching valve. The flame probe pressure gauge interface, the flame probe interface, and the pressure switch interface are located on the side of the switching valve. Since the side of the switching valve only has 3 interfaces (flame probe pressure gauge interface, flame probe interface, and pressure switch interface), it cannot meet the connection requirements of the direct injection pipe, so a three-way connector 301 is added.

[0036] The pressure gauge interface of the bottle is equipped with a first pressure gauge 304 for monitoring the pressure inside the extinguishing agent bottle 2. The pressure gauge interface of the fire detection tube is equipped with a second pressure gauge 305 for monitoring the pressure inside the fire detection tube and its connecting pipes. The pressure switch interface is equipped with a pressure switch 302, which is electrically connected to the alarm 1 to receive signal changes from the pressure switch 302 and issue audible and visual alarm signals to notify personnel of a fire or system malfunction. A trigger tube 309 is installed between the driving gas inlet and the driving gas outlet to transmit changes in driving gas pressure to trigger the release of the extinguishing agent.

[0037] The fire detection tube interface is equipped with a tee connector 301 (the fire detection tube interface is connected to the inlet of the tee connector 301). One end (one outlet) of the tee connector 301 is connected to the fire detection tube, and the other end (the other outlet) is connected in sequence to the switch valve 308 and the direct spray pipe 306, for providing rapid and directional fire extinguishing coverage.

[0038] The aforementioned extinguishing agent cylinder 2 is filled with high-pressure extinguishing agent, and the switching valve, trigger pipe, tee connector, and fire detection pipe form a fire detection pipe loop. Initially, the fire detection pipe loop is filled with low-pressure driving gas, typically low-pressure nitrogen, so that the valve block inside the container valve head 303 is positioned between the high-pressure extinguishing agent in the extinguishing agent cylinder 2 and the low-pressure driving gas in the fire detection pipe loop (inside the container valve head, the inner cavity above the valve block connected to the trigger pipe contains low-pressure driving gas, and the inner cavity below the valve block contains high-pressure extinguishing agent), isolating the extinguishing agent cylinder 2 from the fire detection pipe. When the fire detection pipe is damaged, the fire detection pipe loop loses pressure (the pressure in the inner cavity above the valve block connected to the trigger pipe decreases), and the valve block position changes (the valve block moves upward). At this time, the extinguishing agent cylinder 2... When the passage between the fire extinguishing agent bottle 2 and the fire detection tube 6 is connected, the high-pressure extinguishing agent in the extinguishing agent bottle 2 enters the fire detection tube through the switching valve 311 and the three-way connector 301, and is sprayed out from the broken opening of the fire detection tube 6, thereby extinguishing the fire. When there is no open flame, the switch valve can also be opened directly. At this time, the switch valve releases the pressure in the fire detection tube loop. After breaking the balance, the valve block changes position, which connects the passage between the extinguishing agent bottle 2 and the fire detection tube. The high-pressure extinguishing agent in the extinguishing agent bottle 2 flows into the direct spray pipe 306 through the switching valve 311, the three-way connector 301, and the switch valve 308, and is finally sprayed out from the direct spray pipe 306.

[0039] The above embodiment connects the switch valve 308 and the direct spray pipe 306 via a three-way connector 301. When there is no open flame at the fire point or the open flame is not enough to burn through the fire detection pipe, the switch valve can be opened directly after someone discovers the fire, so that the high-pressure extinguishing agent in the extinguishing agent bottle 2 can be sprayed out from the direct spray pipe 306 to extinguish the fire in time.

[0040] In some embodiments, a direct injection nozzle 307 is installed at the end of the direct injection pipe 306.

[0041] The aforementioned direct injection nozzle 307 can rotate 360 ​​degrees or swing at a limited angle around its mounting axis. The spray direction of the nozzle can be manually adjusted without moving or bending the direct injection pipe itself, so that the direct injection nozzle 307 is aimed at the direction of the ignition point.

[0042] In some embodiments, the switching valve 308 is a solenoid valve. The solenoid valve is electrically connected to a controller, and the controller is electrically connected to a smoke detector.

[0043] In some embodiments, the power terminals of the switching valve 308, the controller, and the smoke detector are all connected to an external power source. In another embodiment, a portable power source is provided, and the power terminals of the switching valve 308, the controller, and the smoke detector are all electrically connected to the output terminal of the portable power source.

[0044] In some embodiments, an on / off valve is installed between the bottle pressure gauge interface and the first pressure gauge 304, and between the fire probe pressure gauge interface and the second pressure gauge 305, for connecting the bottle pressure gauge interface and the first pressure gauge 304 and the fire probe pressure gauge interface and the second pressure gauge 305, or for closing the bottle pressure gauge interface and the first pressure gauge 304 and the fire probe pressure gauge interface and the second pressure gauge 305.

[0045] When the aforementioned opening and closing valve is in the closed state, the pressure gauge interface of the bottle body is disconnected from the first pressure gauge 304, and the pressure gauge interface of the fire detection tube is disconnected from the second pressure gauge 305. In actual use, the main valve of the extinguishing agent bottle 2 is generally closed first, and high-pressure extinguishing agent is injected into the extinguishing agent bottle 2. After the pressure is stabilized, the opening and closing valve between the pressure gauge interface of the bottle body and the first pressure gauge 304 can be opened. At this time, the first pressure gauge 304 displays the internal pressure of the extinguishing agent bottle 2. The opening and closing valve between the pressure gauge interface of the fire detection tube and the second pressure gauge 305 is closed to pressurize the fire detection tube. After pressurization is completed, the opening and closing valve between the pressure gauge interface of the fire detection tube 6 and the second pressure gauge 305 is opened. After the pressure is stabilized, the second pressure gauge 305 displays the pressure in the fire detection tube loop. Then the main valve of the extinguishing agent bottle 2 is opened. At this time, the fire detection tube type fire extinguishing device is in standby state.

[0046] In some embodiments, a main valve 310 is installed at the drive gas outlet. One end of the trigger tube 309 is connected to the drive gas outlet of the container valve head 303 via the main valve 310, and the other end is connected to the drive gas inlet of the switching valve 311.

[0047] The fire detection tube is equipped with a plug 8 at its distal end.

[0048] In some embodiments, the fire probe is provided with a spiral-shaped tube sleeve 7 on the outside.

[0049] The aforementioned spiral sleeve 7 is adapted to the outer diameter of the fire detector tube to facilitate its positioning. In actual use, the spiral sleeve 7 is first fitted onto the outside of the fire detector tube within the fire extinguishing area. Then, the spiral sleeve 7 is arranged and shaped along the ignition point. Finally, the spiral sleeve 7 is fixed to the cabinet using cable ties or a clamp structure (existing structure). By setting the spiral sleeve 7, the fire detector tube 6 between adjacent cable ties will not be severely deformed under air pressure after rupture, causing the fire extinguishing airflow direction to deviate from the ignition point, thereby improving the fire extinguishing effect. Finally, a plug 8 is installed at the end of the fire detector tube. In addition, for situations where the ignition point is far from the cabinet installation location, since the fire detector tube cannot be directly attached to the ignition point, the spiral sleeve 7 can be used for positioning without the need for special mounting parts (such as angle-adjustable or length-adjustable mounting parts), allowing the fire detector tube to be close to the ignition point.

[0050] In some embodiments, the spiral sleeve 7 includes an inner positioning metal wire 702 and an outer insulating sleeve 701. The positioning metal wire 702 is spirally wound around the outside of the fire detector tube, and the insulating sleeve 701 covers the outside of the positioning metal wire 702. The positioning metal wire 702 can maintain a spiral shape and can be positioned in space to ensure that the fire detector tube can be installed close to the ignition point, and that after the fire detector tube breaks and is subjected to the reverse force of air pressure, it deviates less from the ignition point, thereby improving the fire extinguishing efficiency. By setting the outer insulating sleeve 701, the positioning metal wire 702 is insulated, thus adapting to various installation environments.

[0051] In some embodiments, the cross-section of the tubing spiral sleeve 7 is circular or rectangular. When it is circular, the tubing spiral sleeve 7 is a spiral tube; when it is rectangular, the tubing spiral sleeve 7 is a spiral ribbon, with gaps between adjacent spirals.

[0052] The cross-section of the aforementioned spiral sleeve 7 can be circular or rectangular, thereby forming a spiral tube or spiral band, which facilitates fitting the fire detection tube. A gap is left between adjacent spirals of the spiral sleeve 7 to allow high-pressure extinguishing gas to be ejected after the fire detection tube ruptures.

[0053] In some embodiments, the insulating sleeve 701 is made of flame-retardant sheath material.

[0054] The aforementioned flame-retardant sheath material ensures that the internal positioning metal wire 702 is not easily exposed in a fire environment.

[0055] The fire extinguishing agent bottle 2 is installed and fixed by the clamp assembly 4 and the base assembly 5.

[0056] The aforementioned base assembly 5 includes an inner base plate 501, a base support plate 502, and base bolts 503. The cabinet has mounting holes that are compatible with it. The inner base plate 501 is installed inside the cabinet, and the base support plate 502 is installed outside the cabinet. Then, the inner base plate 501, the cabinet side wall, and the base support plate 502 are fixedly connected by the base bolts 503, thereby completing the installation of the base assembly 5.

[0057] The aforementioned clamp assembly 4 includes an inner clamp plate 401, an outer clamp plate 402, a clamp ring 403, and clamp bolts 404. A matching mounting hole is provided on the cabinet. The inner clamp plate 401 is installed inside the cabinet, and the outer clamp plate 402 is installed outside the cabinet. The fire extinguishing agent bottle 2 is then placed on the base support plate 502. The clamp ring 403, cabinet sidewall, inner clamp plate 401, and outer clamp plate 402 are then fixedly connected using the clamp bolts 404. The clamp ring 403 surrounds the fire extinguishing agent bottle 2, and its inner diameter matches the size of the fire extinguishing agent bottle 2, thus completing the installation of the clamp assembly 4 and the fixing of the fire extinguishing agent bottle 2.

[0058] The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

Claims

1. A fire detection tube type fire extinguishing device, comprising an alarm (1), a fire detection tube (6), and a fire extinguishing agent bottle (2) equipped with a container valve assembly (3); characterized in that: It also includes a direct injection pipe (306); the fire probe (6) and the direct injection pipe (306) are connected to the container valve assembly (3) via a three-way connector (301).

2. The fire detection tube type fire extinguishing device according to claim 1, characterized in that: The fire detection tube is provided with a tube-laying spiral sleeve (7) on the outside.

3. The fire detection tube type fire extinguishing device according to claim 2, characterized in that: The spiral sleeve includes a positioning metal wire (702) that is spirally wound around the outside of the fire probe tube, and the positioning metal wire (702) is wrapped with an insulating sleeve (701).

4. The fire detection tube type fire extinguishing device according to claim 3, characterized in that: The container valve assembly (3) includes a container valve head (303), a first pressure gauge (304), a second pressure gauge (305), a switching valve (311), and a trigger tube (309).

5. The fire detection tube type fire extinguishing device according to claim 4, characterized in that: The first pressure gauge (304) is connected to the bottle pressure gauge interface of the container valve head (303); the switching valve (311) is connected to the switching valve interface of the container valve head (303); one end of the trigger tube (309) is connected to the driving gas outlet of the container valve head (303) through the main valve (310), and the other end is connected to the driving gas inlet of the switching valve (311); the second pressure gauge (305) is connected to the fire probe pressure gauge interface of the switching valve (311); the alarm is electrically connected to the pressure switch (302), and the pressure switch (302) is connected to the pressure switch interface of the switching valve (311).

6. The fire detection tube type fire extinguishing device according to claim 5, characterized in that: The inlet of the three-way connector (301) is connected to the fire probe interface of the conversion valve (311); one end of the fire probe is connected to one outlet of the three-way connector (301) and the other end is connected to the plug (8); one end of the direct injection pipe (306) is connected to the other outlet of the three-way connector (301) through the switching valve (308) and the other end is connected to the direct injection nozzle (307).

7. The fire detection tube type fire extinguishing device according to claim 6, characterized in that: The switching valve (308) is a solenoid valve; a controller is electrically connected to the pressure switch (302), the switching valve (308), and the smoke detector.

8. The fire detection tube type fire extinguishing device according to claim 7, characterized in that: The insulating sleeve is made of flame-retardant sheath material.

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