Safety management protection device for hydrogen filling station of chemical enterprise

Abstract

The invention relates to the technical field of chemical enterprise hydrogen filling station safety protection equipment, and discloses a chemical enterprise hydrogen filling station safety management protection device which comprises a water tank, a lifting assembly, a driving assembly, a monitoring assembly and a water spraying assembly, the lifting assembly comprises a supporting cylinder, a supporting rod and a locking button, and the supporting cylinder is fixedly connected to the top of the water tank; after hydrogen leakage of a chemical enterprise occurs, large-area water mist can be increased through sound and light, leakage information can be directly transmitted, safety measures can be taken at the same time, the hydrogen ignition point can be reduced, the explosion limit can be reduced, electrostatic conduction can be increased, an initial fire can be effectively and rapidly extinguished, and the device is simple, low in energy consumption and high in practicability. The device is simple in structure and low in cost, can achieve early warning, disposal, ignition point reduction, explosion limit reduction, static electricity conduction increase and extinguish initial fire at the same time, is large in leakage disposal measure and efficient, and can extinguish initial fire generated by hydrogen leakage at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection equipment for hydrogen filling stations in chemical enterprises, and specifically to a safety management and protection device for hydrogen filling stations in chemical enterprises. Background Art

[0002] Environmental protection and renewable energy are two key issues of concern in the world today. Therefore, efficient, new, and green environmental protection products have become one of the key research directions for scientists in various countries. Hydrogen is an environmental protection and renewable energy source, and at the same time, it is also a good conversion carrier for energy storage at peak electricity consumption. Its flammable nature also allows it to be used as a fuel. It can burn and release heat. When mixed with natural gas for combustion, it can reduce carbon emissions and be used by urban residents and industrial enterprises. Hydrogen belongs to flammable and explosive gases, and during storage, it needs to be fully sealed to avoid leakage and explosion.

[0003] Currently, in the industry, only leakage alarm devices are installed for hydrogen leakage. When hydrogen leakage is detected, only audible and visual warnings are issued, and there are no corresponding safety disposal measures. Often, due to the noise of machinery and vehicles at the hydrogen filling station site affecting the transmission of leakage information by the hydrogen leakage alarm device, production safety accidents occur.

[0004] Although existing hydrogen filling stations have sufficient protection for the sealed storage of hydrogen, there is no special device for preventing and warning hydrogen leakage safety disposal in terms of safety management. During the long-term storage of hydrogen, in case of accidental employee operation errors or equipment aging leading to hydrogen leakage, it is impossible to detect hydrogen leakage in a timely and effective manner, which is likely to cause serious safety accidents. Moreover, after hydrogen leakage, it is not easily detonated when the concentration in the room does not reach the explosion critical value. The explosion critical value is related not only to the hydrogen concentration but also to the air humidity. If the air humidity is relatively high, then the explosion limit will increase accordingly. If the explosion critical value increases, the staff will have more time to detect hydrogen leakage, thereby reducing the probability of safety accidents after hydrogen leakage. Summary of the Invention

[0005] The present invention provides a safety management and protection device for hydrogen filling stations in chemical enterprises, which has the following advantages: after hydrogen leakage in chemical enterprises, it can not only transmit leakage information through audible and visual signals but also increase a large area of water mist, and can simultaneously take safety measures to lower the ignition point of hydrogen, reduce the explosion limit, and increase static electricity conduction. When an incipient fire occurs, it can effectively and quickly extinguish the fire. The device is simple, consumes less energy, and has a low cost. It can simultaneously achieve warning, disposal, lowering the ignition point, reducing the explosion limit, increasing static electricity conduction, extinguishing incipient fires, and the equipment itself has no safety risks, reaching intrinsic safety. The leakage disposal measures are large and efficient, and can simultaneously extinguish the incipient fire generated by hydrogen leakage, solving the problems raised in the above background art.

[0006] The present invention provides the following technical solution: A safety management and protection device for a hydrogen filling station in a chemical enterprise, comprising a water tank, a lifting assembly, a driving assembly, a monitoring assembly and a water spraying assembly. The lifting assembly includes a support cylinder, a support rod and a locking knob. The support cylinder is fixedly connected to the top of the water tank. The support rod is slidably connected to the inside of the support cylinder. The top end of the support rod is fixedly connected with a top plate. The bottom of the top plate is fixedly connected with a driving box. A rotating box is rotatably connected to the outside of the support rod and below the top plate. A plurality of universal wheels are rotatably connected to the bottom of the water tank. A limiting assembly is arranged inside the rotating box.

[0007] As a preferred technical solution of the present invention, the driving assembly includes an air pump, a conduit, an impeller, a bevel gear and a bevel gear ring. The air pump is fixedly connected to the inside of the top plate. The output end of the air pump is fixedly connected with a conduit, and the end of the conduit away from the air pump extends into the driving box. An impeller is rotatably connected to the inside of the driving box.

[0008] As a preferred technical solution of the present invention, a bevel gear is fixedly connected to the impeller, and the bevel gear is located outside the driving box. A bevel gear ring is fixedly connected to the rotating box, and the bevel gear is meshed with the bevel gear ring.

[0009] As a preferred technical solution of the present invention, the monitoring assembly includes a hydrogen concentration monitor and a buzzer and flashing light alarm. The hydrogen concentration monitor is fixedly connected to the input end of the air pump. A buzzer and flashing light alarm is fixedly connected to the top of the top plate, and the buzzer and flashing light alarm is electrically connected to the hydrogen leakage concentration monitor.

[0010] As a preferred technical solution of the present invention, the water spraying assembly includes spray heads, an annular opening, a water pump, a water suction pipe and a conduit. A plurality of spray heads are communicated with the rotating box.

[0011] As a preferred technical solution of the present invention, a water pump is fixedly connected to the inside of the water tank. The input end and the output end of the water pump are respectively fixedly connected with a water suction pipe and a conduit.

[0012] As a preferred technical solution of the present invention, an annular opening is formed in the rotating box, and the end of the conduit away from the water pump extends into the support rod and is opposite to the annular opening.

[0013] As a preferred technical solution of the present invention, the limiting assembly includes a limiting ring and a limiting groove. A limiting ring is fixedly connected to the inner diameter of the bevel gear ring, and a limiting groove corresponding to the limiting ring is formed in the support rod.

[0014] As a preferred technical solution of the present invention, two sealing rings are fixedly connected to the inner diameter of the rotating box, and the two sealing rings are respectively located on the upper and lower sides of the annular opening, and the surface of the sealing ring is in contact with the surface of the support rod.

[0015] The present invention has the following beneficial effects: 1. For this safety management and protection device of a hydrogen filling station in a chemical enterprise, when hydrogen leaks in the chemical enterprise, it can not only transmit the leakage information directly through sound and light, but also increase a large area of water mist. At the same time, safety measures can be taken to lower the ignition point of hydrogen, reduce the explosion limit, and increase static electricity conductivity. When a fire breaks out initially, it can be effectively and quickly extinguished. The device is simple, energy-consuming is less, and the cost is low. It can simultaneously achieve early warning, disposal, lower the ignition point, reduce the explosion limit, increase static electricity conductivity, and extinguish the initial fire. The equipment itself has no safety risks, and the equipment reaches intrinsic safety. The leakage disposal measures are large and efficient, and at the same time, it can extinguish the initial fire caused by hydrogen leakage.

[0016] 2. For this safety management and protection device of a hydrogen filling station in a chemical enterprise, in order to facilitate the limitation of the rotation position of the rotating box, by setting a limiting component, a limiting ring is fixedly connected to the inner diameter of the bevel gear ring, and corresponding limiting grooves are opened on the support rod. When the rotating box rotates, the position of the rotating box can be restricted. In order to facilitate improving the sealing performance of the contact position between the rotating box and the support rod, by setting a sealing ring, two sealing rings are fixedly connected to the inner diameter of the rotating box, and the two sealing rings are respectively located on the upper and lower sides of the annular opening, and the surface of the sealing ring is in contact with the surface of the support rod to seal the contact between the rotating box and the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the present invention; Figure 3 is a schematic diagram of the driving component of the present invention; Figure 4 is a schematic diagram of the lifting component of the present invention; Figure 5 is a schematic diagram of the driving component of the present invention.

[0018] In the figure: 1, water tank; 11, universal wheel; 2, top plate; 3, driving box; 4, rotating box; 5, lifting component; 51, support cylinder; 52, support rod; 53, locking button; 6, driving component; 61, air pump; 62, air duct; 63, impeller; 64, bevel gear; 65, bevel gear ring; 7, monitoring component; 71, hydrogen concentration monitor; 72, buzzer and light alarm; 8, water spraying component; 81, spray head; 82, annular opening; 83, water pump; 84, water suction pipe; 85, air duct; 9, limiting component; 91, limiting ring; 92, limiting groove; 10, sealing ring. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0020] Please refer to Figures 1-5 , a safety management and protection device for a hydrogen filling station in a chemical enterprise, including a water tank 1, a lifting assembly 5, a driving assembly 6, a monitoring assembly 7, and a water spraying assembly 8. The lifting assembly 5 includes a support cylinder 51, a support rod 52, and a locking button 53. The support cylinder 51 is fixedly connected to the top of the water tank 1. The support rod 52 is slidably connected to the inside of the support cylinder 51. The top end of the support rod 52 is fixedly connected to a top plate 2. The bottom of the top plate 2 is fixedly connected to a driving box 3. A rotating box 4 is rotatably connected to the outside of the support rod 52 and below the top plate 2. A plurality of universal wheels 11 are rotatably connected to the bottom of the water tank 1. A limiting assembly 9 is arranged inside the rotating box 4.

[0021] Please refer to Figures 1-5 , in a preferred implementation mode, the driving assembly 6 includes an air pump 61, an air duct 62, an impeller 63, a bevel gear 64, and a bevel gear ring 65. The air pump 61 is fixedly connected to the inside of the top plate 2. The output end of the air pump 61 is fixedly connected to an air duct 62, and one end of the air duct 62 away from the air pump 61 extends into the driving box 3. An impeller 63 is rotatably connected to the inside of the driving box 3.

[0022] Start the air pump 61. The air pump 61 conveys gas into the driving box 3 through the air duct 62. Under the action of the air flow, the impeller 63 starts to rotate. When the impeller 63 rotates, it will drive the bevel gear 64 connected thereto to start rotating.

[0023] Please refer to Figures 1-5 , in a preferred implementation mode, a bevel gear 64 is fixedly connected to the impeller 63, and the bevel gear 64 is located outside the driving box 3. A bevel gear ring 65 is fixedly connected to the rotating box 4, and the bevel gear 64 is meshed with the bevel gear ring 65.

[0024] When the impeller 63 rotates, it will drive the bevel gear 64 connected thereto to start rotating. The meshing of the bevel gear 64 and the bevel gear ring 65 will cause the bevel gear ring 65 to drive the rotating box 4 to start rotating around the support rod 52.

[0025] Please refer to Figures 1-5, in a preferred embodiment, the monitoring component 7 includes a hydrogen concentration monitor 71 and a buzzer and light alarm 72. The hydrogen concentration monitor 71 is fixedly connected to the input end of the air pump 61, and the buzzer and light alarm 72 is fixedly connected to the top of the top plate 2, and the buzzer and light alarm 72 is electrically connected to the leakage hydrogen concentration monitor 71.

[0026] When the hydrogen concentration monitor 71 detects that the concentration of the leaked hydrogen reaches the explosion critical value, it will transmit to the buzzer and light alarm 72, and the buzzer and light alarm 72 will start to remind people through sound and light.

[0027] Please refer to Figures 1-5 , in a preferred embodiment, the water spraying component 8 includes a spray head 81, an annular opening 82, a water pump 83, a water suction pipe 84 and a water guide pipe 85. A plurality of spray heads 81 are communicated with the rotating box 4.

[0028] When the rotating box 4 rotates, the water inside it will spray water mist through a plurality of spray heads 81 to extinguish the initially occurring fire.

[0029] Please refer to Figures 1-4 , in a preferred embodiment, a water pump 83 is fixedly connected inside the water tank 1, and the input end and the output end of the water pump 83 are respectively fixedly connected with a water suction pipe 84 and a water guide pipe 85.

[0030] Start the water pump 83, and the water pump 83 will transport the water in the water tank 1 to the rotating box 4 through the water guide pipe 85 and spray water mist through the spray head 81 to start extinguishing the fire.

[0031] Please refer to Figures 1-5 , in a preferred embodiment, an annular opening 82 is formed on the rotating box 4, and one end of the water guide pipe 85 away from the water pump 83 extends into the support rod 52 and is opposite to the annular opening 82.

[0032] An annular opening 82 is formed on the rotating box 4, one end of the water guide pipe 85 is communicated with the water pump 83, and the other end is communicated with the rotating box 4 through the annular opening 82, so that the water in the water tank 1 enters the rotating box 4.

[0033] Please refer to Figures 1-5 , in a preferred embodiment, the limiting component 9 includes a limiting ring 91 and a limiting groove 92. A limiting ring 91 is fixedly connected to the inner diameter of the bevel gear ring 65, and a limiting groove 92 corresponding to the limiting ring 91 is formed on the support rod 52.

[0034] In order to facilitate the limitation of the rotation position of the rotating box 4, by setting the limiting component 9, a limiting ring 91 is fixedly connected to the inner diameter of the bevel gear ring 65, and a corresponding limiting groove 92 is formed on the support rod 52. When the rotating box 4 rotates, the position of the rotating box 4 can be limited.

[0035] Please refer to Figures 1-5 , in a preferred embodiment, two sealing rings 10 are fixedly connected to the inner diameter of the rotating box 4. The two sealing rings 10 are respectively located on the upper and lower sides of the annular opening 82, and the surface of the sealing ring 10 is in contact with the surface of the support rod 52.

[0036] To facilitate improving the sealing performance at the contact position between the rotating box 4 and the support rod 52, by providing the sealing rings 10, two sealing rings 10 are fixedly connected to the inner diameter of the rotating box 4. The two sealing rings 10 are respectively located on the upper and lower sides of the annular opening 82, and the surface of the sealing ring 10 is in contact with the surface of the support rod 52 to seal the contact between the rotating box 4 and the support rod 52.

[0037] Working principle: During use, when the hydrogen concentration monitor 71 detects that the concentration of leaked hydrogen reaches the combustion and explosion critical value, it will transmit to the buzzer and light alarm 72. The buzzer and light alarm 72 starts to remind people through sound and light. At the same time, the air pump 61 is started. The air pump 61 transports gas into the drive box 3 through the air duct 62. Under the action of the air flow, the impeller 63 starts to rotate. When the impeller 63 rotates, it will drive the bevel gear 64 connected thereto to start rotating. The meshing of the bevel gear 64 and the bevel gear ring 65 will cause the bevel gear ring 65 to drive the rotating box 4 to start rotating around the support rod 52. At the same time, the water pump 83 is started. The water pump 83 transports the water in the water tank 1 through the water duct 85 to the rotating box 4 and sprays water mist through the spray head 81 to start extinguishing the fire. When hydrogen leaks in a chemical enterprise, this device can not only transmit the leakage information directly through sound and light but also increase a large area of water mist, and can simultaneously take safety measures to lower the ignition point of hydrogen, reduce the explosion limit, and increase the static electricity conductivity. When a fire breaks out initially, it can effectively and quickly extinguish the fire. The device is simple, consumes less energy, and has a low cost. It can simultaneously achieve early warning, disposal, lowering the ignition point, reducing the explosion limit, increasing the static electricity conductivity, and extinguishing the initial fire. The equipment itself has no safety risks, the equipment reaches intrinsic safety, the leakage disposal measures are large and efficient, and it can simultaneously extinguish the initial fire caused by hydrogen leakage.

[0038] To facilitate limiting the rotation position of the rotating box 4, by providing the limiting component 9, a limiting ring 91 is fixedly connected to the inner diameter of the bevel gear ring 65, and a corresponding limiting groove 92 is provided on the support rod 52. When the rotating box 4 rotates, the position of the rotating box 4 can be restricted.

[0039] To facilitate improving the sealing performance at the contact position between the rotating box 4 and the support rod 52, by providing the sealing rings 10, two sealing rings 10 are fixedly connected to the inner diameter of the rotating box 4. The two sealing rings 10 are respectively located on the upper and lower sides of the annular opening 82, and the surface of the sealing ring 10 is in contact with the surface of the support rod 52 to seal the contact between the rotating box 4 and the support rod 52.

[0040] To facilitate the locking and fixing of the telescopic length of the support rod 52, a locking knob 53 is threadedly connected to the support cylinder 51. One end of the locking knob 53 abuts against the surface of the support rod 52 to fix the position of the support rod 52 within the support cylinder 51. In addition, to facilitate the movement and transportation of this device, universal wheels 11 are fixedly connected to the bottom of the water tank 1 for moving the entire device.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety management and protection device for a hydrogen filling station in a chemical enterprise, comprising a water tank (1), a lifting assembly (5), a driving assembly (6), a monitoring assembly (7) and a water spraying assembly (8), characterized in that: The lifting assembly (5) includes a support cylinder (51), a support rod (52) and a locking knob (53). The support cylinder (51) is fixedly connected to the top of the water tank (1). The support rod (52) is slidably connected inside the support cylinder (51). The top end of the support rod (52) is fixedly connected to a top plate (2). The bottom of the top plate (2) is fixedly connected to a drive box (3). A rotating box (4) is rotatably connected to the outside of the support rod (52) and below the top plate (2). A plurality of universal wheels (11) are rotatably connected to the bottom of the water tank (1). A limiting assembly (9) is arranged inside the rotating box (4).

2. The safety management and protection device for a hydrogen filling station in a chemical enterprise according to claim 1, wherein: The drive assembly (6) includes an air pump (61), a conduit (62), an impeller (63), a bevel gear (64) and a bevel gear ring (65). The air pump (61) is fixedly connected inside the top plate (2). The output end of the air pump (61) is fixedly connected to a conduit (62), and one end of the conduit (62) away from the air pump (61) extends into the drive box (3). An impeller (63) is rotatably connected inside the drive box (3).

3. The safety management and protection device for a hydrogen filling station of a chemical enterprise according to claim 2, characterized in that: A bevel gear (64) is fixedly connected to the impeller (63), and the bevel gear (64) is located outside the drive box (3). A bevel gear ring (65) is fixedly connected to the rotating box (4), and the bevel gear (64) is meshed with the bevel gear ring (65).

4. A safety management and protection device for a hydrogen filling station in a chemical enterprise according to claim 2, characterized in that: The monitoring assembly (7) includes a hydrogen concentration monitor (71) and a buzzer and light alarm (72). The hydrogen concentration monitor (71) is fixedly connected to the input end of the air pump (61). The buzzer and light alarm (72) is fixedly connected to the top of the top plate (2), and the buzzer and light alarm (72) is electrically connected to the hydrogen leakage concentration monitor (71).

5. The safety management and protection device for a hydrogen filling station in a chemical enterprise according to claim 1, characterized in that: The water spraying assembly (8) includes spray heads (81), an annular opening (82), a water pump (83), a water suction pipe (84) and a conduit (85). A plurality of spray heads (81) are communicated with the rotating box (4).

6. The safety management and protection device for a hydrogen filling station in a chemical enterprise according to claim 5, characterized in that: A water pump (83) is fixedly connected inside the water tank (1). The input end and the output end of the water pump (83) are respectively fixedly connected to a water suction pipe (84) and a conduit (85).

7. The safety management and protection device for a hydrogen filling station of a chemical enterprise according to claim 5, characterized in that: An annular opening (82) is formed in the rotating box (4), and one end of the conduit (85) away from the water pump (83) extends into the support rod (52) and is opposite to the annular opening (82).

8. The safety management and protection device for a hydrogen filling station of a chemical enterprise according to claim 3, characterized in that: The limiting assembly (9) includes a limiting ring (91) and a limiting groove (92). The limiting ring (91) is fixedly connected to the inner diameter of the bevel gear ring (65). A limiting groove (92) corresponding to the limiting ring (91) is formed in the support rod (52).

9. The safety management and protection device for a hydrogen filling station in a chemical enterprise according to claim 5, wherein: Two sealing rings (10) are fixedly connected to the inner diameter of the rotating box (4). The two sealing rings (10) are respectively located on the upper and lower sides of the annular opening (82), and the surfaces of the sealing rings (10) are attached to the surface of the support rod (52).

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