A cabinet type heptafluoropropane gas fire extinguishing device

Abstract

The invention discloses a cabinet-type heptafluoropropane gas fire extinguishing device, comprising a cabinet, a fire extinguishing agent bottle group, an electromagnetic drive device, a power controller, a nozzle and a fire detector, wherein the fire extinguishing agent bottle group is fixedly installed in the cabinet, the electromagnetic drive device is arranged on the top of the container valve of the fire extinguishing agent bottle group, the nozzle and the fire detector are arranged just above the equipment to be protected in the protection zone, the fire detector and the electromagnetic drive device are electrically connected to the power controller respectively, the nozzle comprises a hollow cylinder with a connecting port at one end, the connecting port is connected to the electromagnetic drive device through a fire extinguishing agent delivery pipeline, a plurality of spray holes inclined upward are arranged in a circumferential array on the side wall of the cylinder, and a reflective baffle is arranged above the nozzle. The invention has a fast reaction speed, can effectively achieve a 360-degree uniform fire extinguishing effect, can prevent the valuable equipment from being damaged by the impact of the high-pressure fire extinguishing agent, and can well protect the valuable equipment.

Description

Technical Field

[0001] The invention relates to the technical field of fire extinguishing devices, and in particular to a cabinet-type heptafluoropropane gas fire extinguishing device. Background Art

[0002] At present, the conventional cabinet-type HFC-227ea gas fire extinguishing device on the market is to install the fire extinguishing agent bottle group and the nozzle on the cabinet by connecting them with a hose, and then start the fire extinguishing agent bottle group through the action signal feedback of the detector installed on the top of the room. For large and expensive equipment, if the fire is extinguished after the detector is activated, the whole equipment will be scrapped and the loss will be irreparable. In addition, the spray holes on the conventional nozzles are downward or horizontally distributed 360 degrees. In this way, the fire extinguishing agent sprayed from the nozzle has a high pressure, which will damage the precision instruments in the equipment while extinguishing the fire. Summary of the invention

[0003] The purpose of the present invention is to provide a cabinet-type heptafluoropropane gas fire extinguishing device, which solves the problems in the prior art that fire extinguishing is not rapid and accurate enough and the fire extinguishing agent may damage the equipment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A cabinet-type heptafluoropropane gas fire extinguishing device comprises a cabinet, a fire extinguishing agent bottle group, an electromagnetic drive device, a power controller, a nozzle and a fire detector, wherein the fire extinguishing agent bottle group is fixedly installed in the cabinet, the electromagnetic drive device is arranged on the top of the container valve of the fire extinguishing agent bottle group, the nozzle and the fire detector are arranged directly above the equipment to be protected in the protection area, the fire detector and the electromagnetic drive device are electrically connected to the power controller respectively, the nozzle comprises a hollow cylinder with a connecting port at one end, the connecting port is connected to the electromagnetic drive device through a fire extinguishing agent delivery pipeline, a plurality of spray holes inclined upward are distributed in a circular array on the side wall of the cylinder, and a reflective baffle is provided on the upper cover of the nozzle.

[0006] Furthermore, the reflective baffle is provided with a spherical concave portion with an opening facing downward, so that the fire extinguishing agent is more evenly reflected downward.

[0007] Furthermore, the angle between the central axis of the spray hole and the central axis of the spray head is 20° to 70°, preferably 30°.

[0008] Furthermore, the spray hole is a circular through hole with a hole diameter of 1 mm to 10 mm.

[0009] Furthermore, the number of the spray holes is set to be 3 to 12.

[0010] Furthermore, the connection port is connected to the fire extinguishing agent delivery pipeline via a thread. The threaded structure is used for connection, which has the effect of quick installation or disassembly.

[0011] Furthermore, the fire detector is a composite detector of temperature, smoke and flame. Since the fire detector has the three-in-one detection function of flame, temperature and smoke, when the corresponding detection heads of any two of the detection functions are actuated, the fire extinguishing agent can be started to be sprayed, so that the fire situation can be accurately judged and intelligent automatic fire extinguishing can be realized.

[0012] Furthermore, the fire extinguishing agent delivery pipeline is formed by connecting seamless steel pipes, has strong pressure bearing capacity and high safety.

[0013] Furthermore, the power controller is also electrically connected to a timer and an audible and visual alarm, the timer is electrically connected to an emergency start button and an emergency stop button, the audible and visual alarm is arranged on the top of the cabinet, and the emergency start button and the emergency stop button are arranged on the upper part of the cabinet. In this way, two fire protection and extinguishing modes, automatic fire extinguishing and manual fire extinguishing, can be realized. Specifically, they are divided into: (1) Automatic fire protection and extinguishing mode: When the fire detector is activated, a signal is given to the audible and visual alarm to start the alarm. At this time, the timer starts to count down according to the preset time (the delay time is generally set to 10s). During the 10s delay period, if the on-site staff confirms that the fire detector is malfunctioning, they can press the emergency stop button on the cabinet to cut off the power output and end the fire alarm; if it is confirmed that there is a fire, after the delay ends, the power controller will output a DC24V power supply to the electromagnetic drive device to start the fire extinguishing agent bottle group, and the fire extinguishing agent will be sprayed from the nozzle through the fire extinguishing agent delivery pipeline to extinguish the fire. (2) Manual fire protection mode: When the on-site staff confirms that there is a fire, they can directly press the emergency start button on the cabinet. The power controller will directly output DC24V power to the electromagnetic drive device to start the fire extinguishing agent bottle group. The fire extinguishing agent will be sprayed from the nozzle through the fire extinguishing agent delivery pipeline to extinguish the fire.

[0014] Furthermore, an openable closed door is provided on the side wall of the cabinet, so that maintenance operations such as replacement of the fire extinguishing agent bottle group are convenient.

[0015] Furthermore, the fire extinguishing agent bottle group is fixed in the cabinet through a bottle hoop.

[0016] Furthermore, a force-applying portion for facilitating rotation and twisting is provided on the outer wall of the cylinder, and the force-applying portion is in the shape of a polygonal column.

[0017] Compared with the prior art, the present invention provides a cabinet-type heptafluoropropane gas fire extinguishing device, which has the following beneficial effects:

[0018] The present invention installs the nozzle and the fire detector just above the valuable equipment to be protected. Since the nozzle is located at the position where the equipment to be protected is most likely to catch fire, when a fire occurs, the fire detector immediately acts to alarm, and the electromagnetic drive device is activated to release the fire extinguishing agent through the nozzle of the special structure to extinguish the fire. The reaction speed is fast and the valuable equipment can be protected in time. At the same time, the spray holes on the nozzle are distributed in a circular array and tilted upward. The upper cover of the nozzle is provided with a reflective baffle. In this way, the fire extinguishing agent sprayed from the nozzle will first directly act on the reflective baffle, and then spread evenly around through the reaction force, which can effectively achieve a 360-degree uniform fire extinguishing effect, and can prevent the valuable equipment from being damaged by the impact of the high-pressure fire extinguishing agent, which well protects the valuable equipment and minimizes the loss of the valuable equipment.

[0019] In addition, the structure of the present invention is small in size and easy to install, and can be directly placed near valuable equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the fire extinguishing agent spraying of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the nozzle of the present invention.

[0024] Figure numerals: 1. cabinet; 11. closed door; 2. fire extinguishing agent bottle group; 21. bottle hoop; 3. electromagnetic drive device; 4. power controller; 41. delay device; 42. sound and light alarm; 43. emergency start button; 44. emergency stop button; 5. nozzle; 51. cylinder; 52. connection port; 53. spray hole; 54. force application part; 6. fire detector; 7. protection area; 71. equipment to be protected; 8. fire extinguishing agent delivery pipeline; 9. reflective baffle. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Please refer to Figure 1 to Figure 3This embodiment provides a cabinet-type heptafluoropropane gas fire extinguishing device, including a cabinet 1, a fire extinguishing agent bottle group 2, an electromagnetic drive device 3, a power controller 4, a nozzle 5 and a fire detector 6. An openable closed door 11 is provided on the side wall of the cabinet 1, which can facilitate maintenance operations such as replacing the fire extinguishing agent bottle group 2. The fire extinguishing agent bottle group 2 is fixedly installed in the cabinet 1 through a bottle hoop 21. The electromagnetic drive device 3 is arranged on the top of the container valve of the fire extinguishing agent bottle group 2. The nozzle 5 and the fire detector 6 are arranged just above the equipment to be protected 71 in the protection area 7. Since the nozzle 5 is at the position where the equipment to be protected 71 is most likely to catch fire, when a fire occurs, the fire detector 6 immediately acts to alarm, and the electromagnetic drive device 3 is activated to release the fire extinguishing agent through the nozzle 5 with a special structure to extinguish the fire. The reaction speed is fast and valuable equipment can be protected in time. The fire detector 6 and the electromagnetic drive device 3 are electrically connected to the power controller 4 respectively. The nozzle 5 includes a hollow cylinder 51 with a connection port 52 at one end, and the connection port 52 is connected to one end of the fire extinguishing agent delivery pipe 8 through a thread, and the other end of the fire extinguishing agent delivery pipe 8 is connected to the electromagnetic drive device 3. The nozzle 5 is connected by a threaded structure, which has the effect of quick installation or disassembly. Six spray holes 53 inclined upward are arranged in a circular array on the side wall of the cylinder 51, and a reflective baffle 9 is provided above the nozzle 5. In this way, the fire extinguishing agent sprayed from the nozzle 5 will first directly act on the reflective baffle 9, and then diffuse evenly to the surroundings through the reaction force, which can effectively achieve a 360-degree uniform fire extinguishing effect, and can also prevent valuable equipment from being damaged by the impact of high-pressure fire extinguishing agent, which well protects valuable equipment and minimizes the loss of valuable equipment.

[0029] Specifically, the angle between the central axis of the spray hole 53 and the central axis of the spray head 5 is 30°. Each spray hole 53 is a circular through hole with a diameter of 1 mm to 10 mm. Preferably, the diameter of the spray hole 53 is set to 2 mm.

[0030] In this embodiment, the fire detector 6 is a temperature, smoke and flame composite detector. Since the fire detector 6 has the three-in-one detection function of flame, temperature and smoke, when the corresponding detection heads of any two of the detection functions are actuated, the fire extinguishing agent can be started to be sprayed, so that the fire condition can be accurately judged and intelligent automatic fire extinguishing can be realized. Preferably, the fire detector 6 uses the AE989 series three-composite detector of Intervision.

[0031] In this embodiment, the power controller 4 is also electrically connected to a delay device 41 and an audible and visual alarm 42, the delay device 41 is electrically connected to an emergency start button 43 and an emergency stop button 44, the audible and visual alarm 42 is arranged on the top of the cabinet 1, and the emergency start button 43 and the emergency stop button 44 are arranged on the upper part of the cabinet 1. In this way, two fire protection modes, automatic fire extinguishing and manual fire extinguishing, can be realized. Specifically, they are divided into: (1) Automatic fire protection mode: When the fire detector 6 is activated, the signal is sent to the sound and light alarm 42 to start the alarm. At this time, the delay device 41 starts to count down according to the preset time (the delay time is generally set to 10s). During the 10s delay period, if the on-site staff confirms that the fire detector 6 is malfunctioning, they can press the emergency stop button 44 on the cabinet 1 to cut off the power output and end the fire alarm; if it is confirmed that there is a fire, after the delay, the power controller 4 will output DC24V power to the electromagnetic drive device 3 to start the fire extinguishing agent bottle group 2, and the fire extinguishing agent will be sprayed from the nozzle 5 through the fire extinguishing agent delivery pipeline 8 to extinguish the fire. (2) Manual fire protection mode: When the on-site staff confirms that there is a fire, they can directly press the emergency start button 43 on the cabinet 1, and the power controller 4 will directly output DC24V power to the electromagnetic drive device 3 to start the fire extinguishing agent bottle group 2, and the fire extinguishing agent will be sprayed from the nozzle 5 through the fire extinguishing agent delivery pipeline 8 to extinguish the fire.

[0032] In some specific embodiments, Figure 2 As shown, the reflective baffle 9 is provided with a spherical concave portion with an opening facing downward, so that the fire extinguishing agent is more uniform when reflected downward.

[0033] In some specific implementations, the fire extinguishing agent delivery pipeline 8 is formed by connecting seamless steel pipes, which has strong pressure bearing capacity and high safety.

[0034] In some specific embodiments, Figure 3 As shown, a force-applying portion 54 for easy rotation and twisting is provided on the outer wall of the cylindrical body 51. Preferably, the force-applying portion 54 is in a polygonal column shape.

[0035] It should be noted that in other embodiments, the number of the spray holes 53 can be reasonably selected, such as 3, 4, 8 or 12 spray holes 53. The angle between the central axis of the spray hole 53 and the central axis of the spray head 5 can also be 20°, 45°, 50°, 60°, 70°, etc.

[0036] In addition, the electromagnetic drive device 3 used in the present invention is a conventional switch device for starting a fire extinguishing agent bottle group, which is composed of an electromagnet, a needle, a spring, a valve seat and other structures, and its model is: QDQ80NRG.

[0037] The power controller 4 is a 220V to 24V switching power supply, which is a conventional power control device for gas fire extinguishing devices, model: S-150-24.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cabinet-type heptafluoropropane gas fire extinguishing device, characterized in that: The invention comprises a cabinet (1), a fire extinguishing agent bottle group (2), an electromagnetic drive device (3), a power controller (4), a nozzle (5) and a fire detector (6), wherein the fire extinguishing agent bottle group (2) is fixedly installed in the cabinet (1), the electromagnetic drive device (3) is arranged on the top of the container valve of the fire extinguishing agent bottle group (2), the nozzle (5) and the fire detector (6) are arranged directly above the equipment (71) to be protected in the protection area (7), the fire detector (6) and the electromagnetic drive device (3) are respectively electrically connected to the power controller (4), and the nozzle (5) comprises a nozzle having a A hollow cylinder (51) with a connecting port (52), the connecting port (52) being connected to the electromagnetic drive device (3) via a fire extinguishing agent delivery pipeline (8), a plurality of spray holes (53) inclined upwardly arranged in a circular array on the side wall of the cylinder (51), a reflective baffle (9) being arranged above the nozzle (5); the reflective baffle (9) being provided with a spherical concave portion with an opening facing downwardly; the spray hole (53) being a circular through hole with an aperture size of 1 mm to 10 mm, and an angle formed between a central axis of the spray hole (53) and a central axis of the nozzle (5) being 20° to 70°.

2. The cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The number of the spray holes (53) is set to be 3 to 12.

3. The cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The connection port (52) is connected to the fire extinguishing agent delivery pipeline (8) via threads.

4. The cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The fire detector (6) is a composite detector that senses temperature, smoke and flame.

5. The cabinet-type heptafluoropropane gas fire extinguishing device according to claim 1 is characterized in that: The fire extinguishing agent delivery pipeline (8) is formed by connecting seamless steel pipes.

6. The cabinet-type heptafluoropropane gas fire extinguishing device according to any one of claims 1 to 5, characterized in that: The power controller (4) is also electrically connected to a time delay device (41) and an audible and visual alarm device (42); the time delay device (41) is electrically connected to an emergency start button (43) and an emergency stop button (44); the audible and visual alarm device (42) is arranged on the top of the cabinet (1); and the emergency start button (43) and the emergency stop button (44) are arranged on the upper part of the cabinet (1).

7. The cabinet-type heptafluoropropane gas fire extinguishing device according to claim 6 is characterized in that: An openable closed door (11) is provided on the side wall of the cabinet (1).

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