Railway vehicle-mounted automatic fire extinguishing equipment

Abstract

The embodiment of the utility model provides railway vehicle-mounted automatic fire extinguishing equipment, and relates to the field of fire extinguishing equipment. A partition plate is mounted in an inner cavity of the equipment housing, and the partition plate divides the inner cavity of the equipment housing into a first chamber and a second chamber; a mounting frame, a fixing rod, a plurality of spraying assemblies, a plurality of first gears and a driving assembly are mounted in an inner cavity of the second cavity, the mounting frame is mounted on the lower surface of the partition plate through the fixing rod, and the spraying assemblies are mounted on the mounting frame; the multiple first gears are installed on the multiple spraying assemblies correspondingly, and the driving assembly is installed in the second cavity. In actual use, fire can be extinguished quickly, combustible materials near a fire source can be cooled preferentially, flame spreading is effectively prevented, meanwhile, the covering range of fire extinguishing materials can be gradually reduced, direct covering of the combustible materials is avoided, and flame deviation is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguishing equipment field, concretely refers to a railway vehicle-mounted automatic fire extinguishing equipment. BACKGROUND

[0002] The railway vehicle-mounted automatic fire extinguishing equipment is an important safety device on the railway passenger car, aims at improving the emergency handling capacity of the vehicle under the sudden conditions such as fire, and guaranteeing the safety of passengers and trains, at present, the development of the automatic fire extinguishing of the fire prevention and control of the railway vehicle-mounted and key place in China mostly stays in the theoretical research stage, and in the application aspect of the fire prevention and control system, the fire prevention and control facilities of the railway locomotive in China are relatively simple, mainly including installing the fire monitoring probe and using the handheld fire extinguisher.

[0003] Because there are many electrical equipment in the running railway vehicle, the space is narrow, once the fire occurs, not only the electrical equipment can be seriously damaged, but also the fire spreads fast.

[0004] The handheld fire extinguisher is used at the present stage, and the spraying type fire extinguishing equipment cannot deal with the fire of the electrical equipment, and simultaneously, the fire extinguishing fluid directly acts on the high-temperature fire source, which can easily cause the flame to deviate, and cannot meet the demand of fast fire extinguishing.

[0005] Based on this, the utility model is provided. CONTENT OF UTILITY MODEL

[0006] According to the embodiment of the utility model, a kind of railway vehicle-mounted automatic fire extinguishing equipment is provided.The problems of existing background are solved.

[0007] The utility model provides a kind of railway vehicle-mounted automatic fire extinguishing equipment.

[0008] The railway vehicle-mounted automatic fire extinguishing equipment includes: equipment cover shell, the inner chamber of the equipment cover shell is installed with partition, the inner chamber of the equipment cover shell is divided into first chamber and second chamber by the partition;

[0009] The inner chamber of the second chamber is installed with mounting bracket, fixed rod, several spray assemblies, several first gears and drive assembly, the mounting bracket is installed on the lower surface of the partition by the fixed rod, several spray assemblies are installed on the mounting bracket, several first gears are respectively installed on several spray assemblies, the drive assembly is installed in the second chamber, and the drive assembly can drive several first gears to rotate synchronously.

[0010] Preferably, the spraying assembly comprises a mounting seat, a rotating drum, a first connecting seat, a spray head and a pipeline, the mounting seat is fixedly installed on the mounting rack, the rotating drum is installed on the mounting seat, the first gear is installed on the rotating drum, the first connecting seat is installed on the rotating drum, the spray head is installed on the first connecting seat, and the pipeline is connected with the spray head.

[0011] Preferably, the bottom of the spray head is provided with a flow distribution frame.

[0012] Preferably, the driving assembly comprises a plurality of sliding channels, a plurality of racks, an extension plate, a lever, a rotating seat, a plurality of limiting grooves, a tooth ring and a second gear, the plurality of sliding channels are respectively installed on the inner wall of the equipment shell, the plurality of racks are respectively in sliding connection with the sliding channels, the racks are in meshing connection with the first gear, the extension plate is installed on the top of the rack, the lever is installed on the extension plate, the rotating seat is installed in the second cavity, the plurality of limiting grooves are respectively formed in the rotating seat, and the lever is slidingly inserted into the limiting grooves.

[0013] The tooth ring is installed on the top of the rotating seat, the second gear is installed on the lower surface of the partition plate, and the second gear is in meshing connection with the tooth ring.

[0014] A motor is installed in the first cavity, and the output end of the motor penetrates through the partition plate and is connected with the second gear.

[0015] Preferably, a protective shell is installed on the equipment shell, the pipeline penetrates through the outer wall of the equipment shell and extends into the inner cavity of the protective shell.

[0016] Preferably, the second connecting seat, a main pipeline, a pump body, a steel cylinder and a conveying pipe are further included, the second connecting seat is hollow, the second connecting seat is connected with the free end of the pipeline, one end of the main pipeline is connected with the second connecting seat, the other end of the main pipeline is connected with the output end of the pump body, one end of the conveying pipe is connected with the input end of the pump body, and the other end of the conveying pipe is connected with the steel cylinder.

[0017] Preferably, a fixing seat is further installed on the equipment shell, and a plurality of bolts are installed on the fixing seat.

[0018] The second part of the utility model provides a railway vehicle-mounted automatic fire extinguishing system.

[0019] The railway vehicle-mounted automatic fire extinguishing system comprises the railway vehicle-mounted automatic fire extinguishing equipment, and further comprises a PLC and a fire detector, and the PLC is connected with the fire detector.

[0020] One or more technical solutions provided in the application have the following technical effects or advantages:

[0021] The railway vehicle-mounted automatic fire extinguishing equipment provided by the utility model can release the fire extinguishing material through the spray head through the pump body, so that the fire extinguishing requirement is realized, and the initial coverage range diameter of the plurality of spray heads is ensured to be maximum, each spray assembly is rotated through the driving assembly, the coverage area of the fire extinguishing material is gradually reduced, the temperature of the combustible material near the fire source is preferentially lowered, and the flame deviation path is blocked.

[0022] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the utility model will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and other features, advantages, and aspects of the embodiments of the utility model will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the drawings, the same or similar reference numerals indicate the same or similar elements, wherein:

[0024] Figure 1 A structure schematic view of the railway vehicle-mounted automatic fire extinguishing equipment according to the embodiment of the utility model is shown;

[0025] Figure 2 A bird's eye view structure schematic view of the equipment cover of the railway vehicle-mounted automatic fire extinguishing equipment according to the embodiment of the utility model is shown;

[0026] Figure 3 An explosion structure schematic view of the railway vehicle-mounted automatic fire extinguishing equipment according to the embodiment of the utility model is shown;

[0027] Figure 4 An explosion structure schematic view of the spray assembly and the driving assembly of the railway vehicle-mounted automatic fire extinguishing equipment according to the embodiment of the utility model is shown;

[0028] Figure 5 A structure schematic view of the rotary seat of the railway vehicle-mounted automatic fire extinguishing equipment according to the embodiment of the utility model is shown;

[0029] Figure 6 An explosion structure schematic view of the driving assembly of the railway vehicle-mounted automatic fire extinguishing equipment according to the embodiment of the utility model is shown;

[0030] Figure 7The structure diagram of the spraying assembly of the automatic fire extinguishing equipment for railway vehicle is shown.

[0031] Figure 8 The structure diagram of the spraying assembly of the automatic fire extinguishing equipment for railway vehicle is shown.

[0032] Figure 9 The schematic diagram of the automatic fire extinguishing system for railway vehicle is shown.

[0033] The reference signs are as follows:

[0034] 1, equipment cover, 101, partition, 102, first chamber, 103, second chamber, 2, mounting frame, 201, fixed rod, 3, spraying assembly, 31, mounting seat, 32, rotating drum, 33, first connecting seat, 34, spray head, 35, pipeline, 36, flow divider, 4, first gear, 5, driving assembly, 51, slide, 52, rack, 53, extension plate, 54, lever, 55, rotating seat, 56, limiting groove, 57, gear ring, 58, second gear, 6, motor, 7, second connecting seat, 8, main pipe, 9, pump body, 10, protective shell, 11, fixing seat, 12, bolt, 13, steel cylinder, 14, conveying pipe, 15, PLC, 16, fire detector. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In addition, the term "and / or" in this paper is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects. Embodiment one

[0037] As Figure 1 and Figure 2As shown, the automatic fire extinguishing equipment for railway vehicle comprises an equipment cover 1, a fixing seat 11 is installed on the equipment cover 1, a plurality of bolts 12 are installed on the fixing seat 11, the number of the bolts 12 is at least four, and the four bolts 12 are arranged equidistantly in the circumferential direction. In use, the bolts 12 are screwed and installed on the roof of the railway train carriage, and then the equipment cover 1 is fixedly installed.

[0038] As shown in the Figure 3 and Figure 4 equipment cover 1, the inner cavity of the equipment cover 1 is provided with a partition plate 101, the inner cavity of the equipment cover 1 is divided into a first chamber 102 and a second chamber 103, the inner cavity of the second chamber 103 is provided with a mounting bracket 2, a fixing rod 201, a plurality of spraying assemblies 3, a plurality of first gears 4 and a driving assembly 5. The mounting bracket 2 is arranged in a ring shape, and the mounting bracket 2 is installed on the lower surface of the partition plate 101 through the fixing rod 201. Each spraying assembly 3 is installed on the mounting bracket 2, and each spraying assembly 3 is distributed in a circular shape, so as to ensure that the extinguishing material sprayed by each spraying assembly 3 covers a circular range, and the circular range is the extinguishing area that can be covered by the automatic fire extinguishing equipment for railway vehicle. A plurality of first gears 4 are installed on the plurality of spraying assemblies 3 respectively, and the driving assembly 5 is installed in the second chamber 103, and the driving assembly 5 can drive the plurality of first gears 4 to rotate synchronously.

[0039] As shown in the Figure 7 spraying assembly 3 comprises a mounting seat 31, a rotating drum 32, a first connecting seat 33, a spray head 34 and a pipeline 35. The mounting seat 31 is fixedly installed on the mounting bracket 2, the rotating drum 32 is installed on the mounting seat 31, and the rotating drum 32 can rotate around the mounting seat 31. The first gear 4 is installed on the rotating drum 32, and the first gear 4 is provided with a through hole which avoids the mounting bracket 2 to avoid interference during rotation. When the first gear 4 rotates, it can drive the rotating drum 32 to rotate together. The first connecting seat 33 is installed on the rotating drum 32, and the spray head 34 is installed on the first connecting seat 33. In this embodiment, the spray head 34 is selected as a K200 type carbon dioxide spray head. The bottom end of the spray head 34 is the direction of the gas outlet, and each spray head 34 can rotate synchronously with the rotating drum 32, so as to make the spray head 34 move close to or away from the center of the equipment cover 1 along the radial direction of the equipment cover 1, and then change the size of the circle surrounded by the gas outlets of each spray head 34. When the gas outlets of each spray head 34 are at the position farthest from the center of the equipment cover 1, the diameter of the circle surrounded by the gas outlets of each spray head 34 is the largest, and the extinguishing area reaches the maximum.

[0040] The pipe 35 is connected with the spray head 34, the protective shell 10 is installed on the equipment cover 1, the pipe 35 penetrates the outer wall of the equipment cover 1 and extends into the inner cavity of the protective shell 10, the pipe 35 is used for conveying the fire extinguishing material to each spray head 34, and the pipe 35 is made of flexible material, and in the embodiment, the pipe 35 is made of a PTFE-lining flexible pipe, which is corrosion-resistant and high-pressure-resistant, and is suitable for conveying the fire extinguishing material. In addition, the pipe can be protected by the protective shell 10.

[0041] By using the rotation ability of each spray head 34, the change of the fire extinguishing range can be changed. In the initial stage of the fire extinguishing work, each spray head 34 is located at the position farthest from the center of the equipment cover 1, the fire extinguishing area is the largest, the temperature of the area near the ignition point can be quickly reduced, the flame retardant effect is achieved, the flame spreading path is cut off, then by rotating each spray head 34, the fire extinguishing range is reduced, and the purpose of extinguishing the fire is gradually achieved. At the same time, by using the rotation ability of the spray head 34 in the device, the fire extinguishing material can be prevented from being directly sprayed to the flame at the initial stage of extinguishing the fire, and the flame can be prevented from being deviated. At the same time, if solid or liquid fire extinguishing material is selected, the fire extinguishing material can be prevented from being directly vaporized due to the high temperature of the flame.

[0042] As Figure 4 , Figure 5 and Figure 6As shown, the driving assembly 5 comprises a plurality of slides 51, a plurality of racks 52, an extension plate 53, a push rod 54, a rotating seat 55, a plurality of limiting grooves 56, a tooth ring 57 and a second gear 58. The plurality of slides 51 are respectively installed on the inner wall of the equipment shell 1. The plurality of racks 52 are respectively in sliding connection with the plurality of slides 51. The rack 52 can move in the up-down direction and is kept stable by the limiting of the slide 51. The rack 52 is in meshing connection with the first gear 4. When the rack 52 moves, the first gear 4 can be driven to rotate. When the rack 52 moves upwards, the rotating drum 32 is rotated through cooperation with the first gear 4, so that the bottom end of the spray head 34 moves away from the center of the equipment shell 1, and vice versa. The extension plate 53 is installed on the top of the rack 52. The push rod 54 is installed on the extension plate 53. The rotating seat 55 is installed in the second cavity 103. The plurality of limiting grooves 56 are respectively formed on the rotating seat 55, and the push rod 54 is slidingly inserted into the limiting groove 56. The limiting groove 56 is obliquely arranged. When the rotating seat 55 rotates, the limiting of the push rod 54 by the limiting groove 56 can make the rack 52 move in the up-down direction. The tooth ring 57 is installed on the top of the rotating seat 55 and can rotate synchronously. The second gear 58 is installed on the lower surface of the partition plate 101 and is in meshing connection with the tooth ring 57. When the second gear 58 rotates, the tooth ring 57 can be driven to rotate synchronously. The motor 6 is installed in the first cavity 102. The output end of the motor 6 penetrates through the partition plate 101 and is connected with the second gear 58. The opening of the motor 6 can drive the second gear 58 to rotate. In the embodiment, the model of the motor 6 is MSMF012L1U, which can accurately control the rotation number and angle of the output end and has the ability to lock the output end.

[0043] In the embodiment, the movement of the rack 52 can make the spray head 34 rotate, so as to realize the demand of changing the fire extinguishing range. The limiting of the slide 51 can ensure the accurate up-down movement of the rack 52 and ensure the accuracy of the equipment. The difference between the highest point and the lowest point of the inclined limiting groove 56 is used to control the movement range of the rack 52, so as to control the rotation range of the spray head 34.

[0044] As Figure 1 and Figure 2As shown, the railway vehicle-mounted automatic fire extinguishing device further comprises a second connecting seat 7, a main pipe 8, a pump body 9, a steel bottle 13 and a delivery pipe 14. The second connecting seat 7 is hollow inside. The free ends of the respective pipes 35 pass out of the same position of the protective shell 10, the second connecting seat 7 is connected with the free ends of the pipes 35, one end of the main pipe 8 is connected with the second connecting seat 7, and the other end of the main pipe 8 is connected with the output end of the pump body 9. The pump body 9 in this embodiment is an LCO2-150 pump, which can deliver liquid carbon dioxide for fire extinguishing. One end of the delivery pipe 14 is connected with the input end of the pump body 9, and the other end of the delivery pipe 14 is connected with the steel bottle 13. The steel bottle 13 in this embodiment contains liquid carbon dioxide for fire extinguishing, and an electric valve is additionally installed at the outlet of the steel bottle 13. When the electric valve is opened, the pump body 9 can deliver the liquid carbon dioxide to the second connecting seat 7, and then branch into the respective pipes 35, and finally the carbon dioxide is output through the spray heads 34, rapidly vaporizes and extinguishes the fire.

[0045] This embodiment also comprises a railway vehicle-mounted automatic fire extinguishing system, which is described with reference to Figure 9 The system comprises the above-mentioned railway vehicle-mounted automatic fire extinguishing device, and further comprises a PLC 15 and fire detectors 16, and the PLC 15 is electrically connected with the fire detectors 16. The number of the fire detectors 16 can be several, and the models of the several fire detectors are respectively Honeywell 5808W3 smoke detector, Apollo Series 65A Heat Detector temperature detector, FS24X Flame Detector fire detector and Bosch FAP-425-DOT multi-sensor fire detector. It is worth noting that the selection of the fire detectors 16 in this embodiment is not limited to the above-mentioned models and number, and can be adaptively adjusted according to actual needs. The PLC 15 is selected to be S7-200 SMART model. In this embodiment, the fire detectors 16 are installed near the device cover 1, and the distance between them is not greater than 30 cm, so as to ensure that the ignition point in the coverage range of the railway vehicle-mounted automatic fire extinguishing device can be accurately detected. In addition, the motor 6 and the pump body 9 are electrically connected with the PLC 15. When a fire occurs, the fire detector 15 transmits a fire signal to the PLC 16, and the PLC 16 can control the motor 6 and the pump body 9 to start corresponding work according to the pre-setting.

[0046] The working principle of the automatic fire extinguishing equipment and the automatic fire extinguishing system of the railway vehicle is as follows: first, the fire detector 16 detects the fire point and transmits the signal to the PLC 15, and the PLC 15 sends a starting signal to the motor 6. The motor 6 drives the second gear 58 to rotate, thereby driving the gear ring 57 and the rotating seat 55 to rotate, so that the limiting of the limiting groove 56 to the push rod 54 makes the plurality of racks 52 move upward, thereby driving the first gear 4 to rotate the rotating drum 32, and the bottom end of the plurality of nozzles 34 moves away from the center of the equipment housing 1, each nozzle 34 expands, and the extinguishing range covered reaches the maximum, so that the fire point is completely located in the extinguishing range covered by each nozzle 34. Subsequently, the PLC 15 drives the pump body 9 to open, and the electric valve on the steel cylinder 13 opens, and the liquid carbon dioxide in the steel cylinder 13 is pumped out, sequentially passes through the main pipe 8, the second connecting seat 7 and the pipeline 35, and is finally sprayed out of each nozzle 34. The carbon dioxide changes from liquid to gas, and the low-temperature carbon dioxide rapidly cools the area in the circular range near the fire source, thereby blocking the flame spread path. Subsequently, the motor 6 is reversely started, the racks 52 move downward, and at this time the bottom end of each nozzle 34 moves toward the center of the equipment housing 1, each nozzle 34 shrinks, the extinguishing area gradually shrinks, the flame range is reduced, and finally the flame is extinguished by the flame retardant property of the carbon dioxide.

[0047] In use, the scheme can avoid the direct action of the fire extinguishing material on the high-temperature flame, avoid the deviation of the flame, select carbon dioxide as the fire extinguishing material, prevent the fire extinguishing material from losing the extinguishing ability due to vaporization, block the flame spread path at the initial stage of extinguishing, and gradually extinguish the fire from the outside to the inside, thereby quickly weakening the fire, preventing the flame from spreading, having high extinguishing efficiency, and being practical and convenient. Embodiment Two

[0048] As shown in Figure 8 the embodiment differs from the first embodiment in that the bottom of the nozzle 34 is provided with a flow dividing frame 36. In the embodiment, the fire extinguishing material loaded in the steel cylinder 13 is liquid, and when the fire extinguishing material is sprayed out of the bottom end of the nozzle 34, the flow dividing frame 36 can make the liquid column spread, increase the coverage area of the fire extinguishing material, and improve the extinguishing efficiency.

[0049] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A railway vehicle-mounted automatic fire extinguishing device, characterized in that, include: Equipment housing (1), the inner cavity of the equipment housing (1) is equipped with a partition (101), the partition (101) divides the inner cavity of the equipment housing (1) into a first chamber (102) and a second chamber (103). The second chamber (103) is equipped with a mounting frame (2), a fixing rod (201), several spray components (3), several first gears (4) and a drive assembly (5). The mounting frame (2) is mounted on the lower surface of the partition (101) via the fixing rod (201). Several spray components (3) are mounted on the mounting frame (2). Several first gears (4) are respectively mounted on several spray components (3). The drive assembly (5) is installed in the second chamber (103) and can drive several first gears (4) to rotate synchronously. The spray assembly (3) includes a mounting base (31), a rotating drum (32), a first connecting seat (33), a nozzle (34), and a pipe (35). The mounting base (31) is fixedly mounted on the mounting frame (2). The rotating drum (32) is mounted on the mounting base (31), and the first gear (4) is mounted on the rotating drum (32). The first connecting seat (33) is mounted on the rotating drum (32), and the nozzle (34) is mounted on the first connecting seat (33). The pipe (35) is connected to the nozzle (34).

2. The railway vehicle-mounted automatic fire extinguishing equipment according to claim 1, characterized in that, A flow divider (36) is installed at the bottom of the nozzle (34).

3. The railway vehicle-mounted automatic fire extinguishing equipment according to claim 1 or 2, characterized in that, The drive assembly (5) includes several slides (51), several racks (52), an extension plate (53), a lever (54), a rotating seat (55), several limiting grooves (56), a gear ring (57), and a second gear (58). Several slides (51) are respectively installed on the inner wall of the equipment cover (1). Several racks (52) are respectively slidably connected to several slides (51), and the racks (52) are meshed with the first gear (4). The extension plate (53) is installed on the top of the racks (52). The lever (54) is installed on the extension plate (53). The rotating seat (55) is installed in the second chamber (103). Several limiting grooves (56) are respectively opened on the rotating seat (55), and the lever (54) is slidably inserted into the limiting groove (56). The toothed ring (57) is mounted on the top of the rotating seat (55), and the second gear (58) is mounted on the lower surface of the partition (101), and the second gear (58) meshes with the toothed ring (57). A motor (6) is installed in the first chamber (102), and the output end of the motor (6) passes through the partition (101) and is connected to the second gear (58).

4. The railway vehicle-mounted automatic fire extinguishing equipment according to claim 3, characterized in that, A protective shell (10) is installed on the equipment housing (1), and the pipe (35) penetrates the outer wall of the equipment housing (1) and extends into the inner cavity of the protective shell (10).

5. The railway vehicle-mounted automatic fire extinguishing equipment according to claim 4, characterized in that, It also includes a second connecting seat (7), a main pipe (8), a pump body (9), a gas cylinder (13) and a delivery pipe (14). The interior of the second connecting seat (7) is hollow. The second connecting seat (7) is connected to the free end of the pipe (35). One end of the main pipe (8) is connected to the second connecting seat (7). The other end of the main pipe (8) is connected to the output end of the pump body (9). One end of the delivery pipe (14) is connected to the input end of the pump body (9). The other end of the delivery pipe (14) is connected to the gas cylinder (13).

6. The railway vehicle-mounted automatic fire extinguishing equipment according to claim 5, characterized in that, The equipment housing (1) is also equipped with a fixing seat (11), and a number of bolts (12) are installed on the fixing seat (11).

7. The railway vehicle-mounted automatic fire extinguishing equipment according to claim 6, characterized in that, Also includes: The PLC (15) and the fire detector (16) are connected together.

Images