CO2 cold venting fire extinguishing early warning device
Patent Information
- Application Number
- CN202520880066.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-05-06
AI Technical Summary
[0002]CO2冷放空是指通过低温控制技术对二氧化碳（CO2）储罐或管道进行安全排放的操作，核心在于避免高压液态CO2直接释放时因汽化吸热导致设备冻损，同时减少CO2气体逃逸造成的资源浪费和环境污染，在一些高危场所（例如化工、电力、食品加工）火灾隐患较高，传统灭火方式具有一定局限性和缺陷，其中水基灭火剂会导致精密设备腐蚀或油类火灾扩散（如油墨飞溅），而干粉灭火系统残留物污染环境，且无法抑制深层火源复燃
一、通过安装架将轨道预装在车间上方，轨道的安装位置以及安装高度视车间消防区进行调整，移动座在轨道上移动，对车间消防区进行巡检，巡检路径可自定义，可覆盖传统固定式设备难以触及的盲区，通过火灾探测器对火灾进行检测，当检测到火灾发生预警箱上的声光报警器发出警报，储罐内部高压储存的液态CO2通过固定管一侧喷头喷放，通过快速释放CO2，将防护空间内的氧浓度降至%以下，阻断燃烧链式反应，液态CO2在喷放时汽化吸热，使火场温度骤降，抑制复燃，达到灭火效果；
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Figure CN224792756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fire extinguishing and early warning equipment, specifically to a CO2 cold venting fire extinguishing and early warning equipment. Background Technology
[0002] CO2 cold venting refers to the safe release of carbon dioxide (CO2) from storage tanks or pipelines using cryogenic control technology. The core principle is to prevent equipment freezing damage caused by the heat absorption during vaporization of high-pressure liquid CO2 during direct release, while also reducing resource waste and environmental pollution caused by CO2 gas escape. In some high-risk locations (such as chemical, power, and food processing plants), where fire hazards are high, traditional fire extinguishing methods have certain limitations and defects. Water-based extinguishing agents can cause corrosion of precision equipment or spread of oil fires (such as ink splatter), while dry powder extinguishing systems leave residues that pollute the environment and cannot suppress the reignition of deep fire sources.
[0003] For these high-risk locations, existing technologies use CO2 fire extinguishing and early warning equipment based on a combination of high-pressure liquefied carbon dioxide and fire early warning devices to achieve a safety system that integrates fire detection, intelligent early warning, and rapid fire extinguishing. However, factory workshops are large, and the protection area of a single fire extinguishing and early warning device is limited. If multiple devices are installed to cover the workshop in a grid pattern, it will increase costs significantly, far exceeding the fire protection budget of small and medium-sized enterprises, and will also conflict with the layout of workshop equipment and occupy workshop space. Utility Model Content
[0004] The purpose of this invention is to provide a CO2 cold venting fire extinguishing and early warning device to address the aforementioned shortcomings in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A CO2 cold venting fire extinguishing and early warning device includes a track, a toothed plate fixedly connected to the bottom of the track, several mounting brackets fixedly connected to the top of the track, a movable seat slidably arranged on the outer side of the track, a first swinging member arranged at the bottom of the movable seat, second swinging members arranged on both sides of the first swinging member, a fixed pipe arranged at one end of the second swinging member, several nozzles arranged on one side of the fixed pipe, a storage tank arranged at the bottom of the first swinging member, and telescopic hoses connected to both sides of the top of the storage tank, the top of the telescopic hoses being connected to the bottom of the fixed pipe; A warning box is installed on one side of the mobile base, and a fire detector is installed on one side of the warning box.
[0006] Preferably, the first swinging component includes a box body fixedly disposed at the bottom of the movable seat, the bottom of the box body being fixedly connected to the top of the storage tank, an electric push rod being disposed inside the box body, a rack being fixedly connected to the top rod of the electric push rod, half gears being meshed on both sides of the rack, a rotating shaft being fixedly connected to the inner ring of the half gear, the outer side of the rotating shaft being slidably connected to the inner wall of the box body, and one side of the half gear being connected to the second swinging component.
[0007] Preferably, the second swinging component includes a fixed rod disposed on the outside of the half gear, a fixed disk fixedly connected to one side of the fixed rod, a rotating rod rotatably disposed at the center of the fixed disk, a semi-circular plate fixedly connected to the outside of the rotating rod, a guide rod fixedly connected to the inner wall of the semi-circular plate, an annular groove for cooperating with the guide rod being opened on one side of the fixed disk, a counterweight fixedly connected to the center of the bottom of the semi-circular plate, and one end of the rotating rod fixedly connected to the outside of the fixed tube.
[0008] Preferably, a motor is installed inside the movable base, and a drive gear is fixedly connected to the output end of the motor. The outer side of the drive gear meshes with a gear plate.
[0009] Preferably, a pair of rollers are rotatably provided at the top of the movable seat, and the rollers roll in grooves on both sides of the top of the track.
[0010] Preferably, guide blocks are fixedly connected to both sides of the rack away from the half gear, and guide grooves are provided on both sides of the inner wall of the box near the guide blocks.
[0011] In the above technical solution, the CO2 cold venting fire extinguishing and early warning device provided by this utility model has the following beneficial effects: 1. The track is pre-installed above the workshop using a mounting frame. The installation position and height of the track are adjusted according to the workshop's fire protection zone. The movable seat moves on the track to inspect the workshop's fire protection zone. The inspection path can be customized and can cover blind spots that are difficult for traditional fixed equipment to reach. Fire detectors are used to detect fires. When a fire is detected, the audible and visual alarm on the early warning box sounds an alarm. The high-pressure liquid CO2 stored inside the tank is released through a nozzle on one side of the fixed pipe. By rapidly releasing CO2, the oxygen concentration in the protected space is reduced to below a certain percentage, interrupting the combustion chain reaction. The liquid CO2 vaporizes and absorbs heat during the release, causing the temperature of the fire scene to drop sharply, inhibiting reignition, and achieving the fire extinguishing effect. 2. The electric push rod inside the box drives the rack to move up and down, causing the half gear to drive the rotating shaft to rotate inside the box. This, in turn, drives the two fixed tubes to swing up and down through the second swinging component. When the fixed tubes swing up and down, the semicircular plate on the outside of the rotating rod is affected by the weight of the counterweight, causing the rotating rod to rotate inside the fixed plate. The semicircular plate rotates on one side of the fixed plate and, under the action of inertia, drives the fixed tubes to swing left and right to increase the spray range of the nozzle, achieve omnidirectional spray, increase the effective coverage radius of the nozzle, and reduce the fire extinguishing blind spot. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0013] Figure 1 This is a schematic diagram of a preferred embodiment of the CO2 cold venting fire extinguishing and early warning device provided by this utility model.
[0014] Figure 2 This is a schematic diagram of the structure of the first swinging component shown in this utility model; Figure 3 This is a schematic diagram of the structure of the second swinging component shown in this utility model; Figure 4 This is a schematic diagram of the internal structure of the movable base shown in this utility model.
[0015] 1. Track; 101. Toothed plate; 102. Mounting bracket; 2. Movable seat; 201. Warning box; 202. Fire detector; 3. First swing component; 31. Box body; 32. Electric push rod; 33. Rack; 34. Half gear; 35. Rotating shaft; 4. Second swing component; 41. Fixed rod; 42. Fixed plate; 43. Rotating rod; 44. Semicircular plate; 45. Guide rod; 46. Annular groove; 47. Counterweight; 5. Fixed pipe; 6. Storage tank; 7. Telescopic hose; 8. Motor; 9. Drive gear; 10. Roller; 11. Guide block; 12. Guide groove. Detailed Implementation
[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0018] like Figure 1-4 As shown, the CO2 cold venting fire extinguishing and early warning device provided in this embodiment of the utility model includes a track 1, a toothed plate 101 fixedly connected to the bottom of the track 1, a plurality of mounting brackets 102 fixedly connected to the top of the track 1, a movable seat 2 slidably arranged on the outer side of the track 1, a first swing member 3 arranged at the bottom of the movable seat 2, a second swing member 4 arranged on both sides of the first swing member 3, a fixed pipe 5 arranged at one end of the second swing member 4, a plurality of nozzles arranged on one side of the fixed pipe 5, a storage tank 6 arranged at the bottom of the first swing member 3, and a telescopic hose 7 connected to both sides of the top of the storage tank 6, with the top of the telescopic hose 7 connected to the bottom of the fixed pipe 5; A warning box 201 is installed on one side of the mobile base 2, and a fire detector 202 is installed on one side of the warning box 201.
[0019] In this embodiment, the track 1 is pre-installed above the workshop using the mounting bracket 102. The installation position and height of the track 1 are adjusted according to the fire zone of the workshop. The movable seat 2 moves on the track 1 to inspect the fire zone of the workshop. The inspection path can be customized and can cover blind spots that are difficult to reach by traditional fixed equipment. The fire detector 202 detects the fire. When a fire is detected, the audible and visual alarm on the fire warning box 201 sounds an alarm. The liquid CO2 stored under high pressure inside the storage tank 6 is sprayed out through the nozzle on one side of the fixed pipe 5. By rapidly releasing CO2, the oxygen concentration in the protected space is reduced to below 15%, which blocks the combustion chain reaction. When the liquid CO2 is sprayed, it vaporizes and absorbs heat, causing the temperature of the fire scene to drop sharply, inhibiting reignition, and achieving the fire extinguishing effect. The first swinging member 3 drives the two fixed pipes 5 to swing up and down, and the second swinging member 4 drives the two fixed pipes 5 to swing left and right to increase the spray range of the nozzle, achieve omnidirectional spraying, increase the effective coverage radius of the nozzle, and reduce the fire extinguishing blind spots.
[0020] Specifically, the first swinging component 3 includes a box 31 fixedly installed at the bottom of the movable seat 2. The bottom of the box 31 is fixedly connected to the top of the storage tank 6. An electric push rod 32 is installed inside the box 31. A rack 33 is fixedly connected to the top rod of the electric push rod 32. Half gears 34 are meshed on both sides of the rack 33. A rotating shaft 35 is fixedly connected to the inner ring of the half gear 34. The outer side of the rotating shaft 35 is slidably connected to the inner wall of the box 31. One side of the half gear 34 is connected to the second swinging component 4.
[0021] In this embodiment, the electric push rod 32 inside the box 31 drives the rack 33 to move up and down, causing the half gear 34 to drive the rotating shaft 35 to rotate inside the box 31, and then drives the two fixed tubes 5 to swing up and down through the second swing member 4.
[0022] Specifically, the second swinging component 4 includes a fixed rod 41 disposed on the outside of the half gear 34, a fixed disk 42 fixedly connected to one side of the fixed rod 41, a rotating rod 43 rotatably disposed at the center of the fixed disk 42, a semicircular plate 44 fixedly connected to the outside of the rotating rod 43, a guide rod 45 fixedly connected to the inner wall of the semicircular plate 44, an annular groove 46 for cooperating with the guide rod 45 is opened on one side of the fixed disk 42, a counterweight 47 is fixedly connected to the center of the bottom of the semicircular plate 44, and one end of the rotating rod 43 is fixedly connected to the outside of the fixed tube 5.
[0023] In this embodiment, when the fixed tube 5 swings up and down, the semicircular plate 44 on the outer side of the rotating rod 43 is affected by the gravity of the counterweight 47, causing the rotating rod 43 to rotate inside the fixed disk 42. The semicircular plate 44 rotates on one side of the fixed disk 42 and drives the fixed tube 5 to swing back and forth under the action of inertia. When the semicircular plate 44 rotates, the guide rod 45 slides in the annular groove 46 to guide the rotating rod 43 and the semicircular plate 44.
[0024] Specifically, the movable base 2 is equipped with a motor 8, and the output end of the motor 8 is fixedly connected to a drive gear 9. The outer side of the drive gear 9 is meshed with the toothed plate 101.
[0025] A pair of rollers 10 are rotatably mounted on the top of the movable seat 2, and the rollers 10 roll in the grooves on both sides of the top of the track 1.
[0026] In this embodiment, the drive gear 9 meshes with the toothed plate 101, so that when the motor 8 drives the drive gear 9 to rotate, the moving seat 2 moves horizontally on the track 1. The roller 10 inside the moving seat 2 rolls in the groove at the top of the track 1, which guides and limits the moving seat 2, making the moving seat 2 move more stably and smoothly.
[0027] Specifically, guide blocks 11 are fixedly connected to both sides of the rack 33 away from the half gear 34, and guide grooves 12 are opened on both sides of the inner wall of the box 31 near the guide blocks 11.
[0028] In this embodiment, when the rack 33 moves, the guide block 11 moves within the guide groove 12 to guide and limit the rack 33, thereby improving the stability of the rack 33 during movement.
[0029] Work steps: 1. The track 1 is pre-installed above the workshop using the mounting bracket 102. The installation position and height of the track 1 are adjusted according to the fire zone of the workshop. The movable seat 2 moves on the track 1 to inspect the fire zone of the workshop. The inspection path can be customized and can cover blind spots that are difficult to reach by traditional fixed equipment. The fire detector 202 detects the fire. When a fire is detected, the audible and visual alarm on the fire warning box 201 sounds an alarm. The liquid CO2 stored under high pressure inside the storage tank 6 is sprayed through the nozzle on one side of the fixed pipe 5. By rapidly releasing CO2, the oxygen concentration in the protected space is reduced to below 15%, which blocks the combustion chain reaction. When the liquid CO2 is sprayed, it vaporizes and absorbs heat, which causes the temperature of the fire scene to drop sharply, inhibiting reignition and achieving the fire extinguishing effect. 2. The electric push rod 32 inside the housing 31 drives the rack 33 to move up and down, causing the half gear 34 to drive the rotating shaft 35 to rotate inside the housing 31. This, in turn, drives the two fixed tubes 5 to swing up and down through the second swinging member 4. When the fixed tubes 5 swing up and down, the semicircular plate 44 on the outside of the rotating rod 43 is affected by the gravity of the counterweight 47, causing the rotating rod 43 to rotate inside the fixed plate 42. The semicircular plate 44 rotates on one side of the fixed plate 42 and drives the fixed tubes 5 to swing left and right under the action of inertia, so as to improve the spray range of the nozzle, realize omnidirectional spray, increase the effective coverage radius of the nozzle, and reduce the fire extinguishing blind spot.
[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A CO2 cold venting fire suppression and early warning device, characterized in that, Includes a track (1), a toothed plate (101) is fixedly connected to the bottom of the track (1), a number of mounting brackets (102) are fixedly connected to the top of the track (1), a movable seat (2) is slidably arranged on the outside of the track (1), a first swing member (3) is arranged at the bottom of the movable seat (2), a second swing member (4) is arranged on both sides of the first swing member (3), a fixed pipe (5) is arranged at one end of the second swing member (4), a number of nozzles are arranged on one side of the fixed pipe (5), a storage tank (6) is arranged at the bottom of the first swing member (3), and a telescopic hose (7) is connected to both sides of the top of the storage tank (6), and the top of the telescopic hose (7) is connected to the bottom of the fixed pipe (5); A warning box (201) is provided on one side of the mobile seat (2), and a fire detector (202) is provided on one side of the warning box (201).
2. The CO2 cold venting fire extinguishing and early warning device according to claim 1, characterized in that, The first swinging component (3) includes a box (31) fixedly installed at the bottom of the movable seat (2). The bottom of the box (31) is fixedly connected to the top of the storage tank (6). An electric push rod (32) is provided inside the box (31). A rack (33) is fixedly connected to the top rod of the electric push rod (32). Half gears (34) are meshed on both sides of the rack (33). A rotating shaft (35) is fixedly connected to the inner ring of the half gear (34). The outer side of the rotating shaft (35) is slidably connected to the inner wall of the box (31). One side of the half gear (34) is connected to the second swinging component (4).
3. The CO2 cold venting fire extinguishing and early warning device according to claim 2, characterized in that, The second swing member (4) includes a fixed rod (41) disposed on the outside of the half gear (34), a fixed plate (42) is fixedly connected to one side of the fixed rod (41), a rotating rod (43) is rotatably disposed at the center of the fixed plate (42), a semi-circular plate (44) is fixedly connected to the outside of the rotating rod (43), a guide rod (45) is fixedly connected to the inner wall of the semi-circular plate (44), an annular groove (46) is opened on one side of the fixed plate (42) to cooperate with the guide rod (45), a counterweight (47) is fixedly connected to the center of the bottom of the semi-circular plate (44), and one end of the rotating rod (43) is fixedly connected to the outside of the fixed tube (5).
4. The CO2 cold venting fire suppression and early warning device according to claim 1, characterized in that, The movable seat (2) is equipped with a motor (8), and the output end of the motor (8) is fixedly connected to a drive gear (9). The outer side of the drive gear (9) is meshed with a toothed plate (101).
5. The CO2 cold venting fire extinguishing and early warning device according to claim 1, characterized in that, A pair of rollers (10) are rotatably provided on the top of the movable seat (2), and the rollers (10) roll in the grooves on both sides of the top of the track (1).
6. The CO2 cold venting fire extinguishing and early warning device according to claim 2, characterized in that, Guide blocks (11) are fixedly connected to both sides of the rack (33) away from the half gear (34), and guide grooves (12) are opened on both sides of the inner wall of the box (31) near the guide blocks (11).