Umbrella type hydrogen leakage safety protection system

Abstract

The invention discloses an umbrella type hydrogen leakage safety protection system, and belongs to the technical field of hydrogen refueling station equipment. A plurality of exhaust holes are formed in a hollow interlayer exhaust ceiling, and alarms are mounted on the two sides of the hollow interlayer exhaust ceiling; the ventilation pipeline serves as a supporting column to support the exhaust ceiling, a centrifugal exhaust fan is installed at the top end in the ventilation pipeline, and hydrogen concentration sensors are installed on the two sides, close to the hydrogen storage tank, of the outer wall. A plurality of layers of carbon nano tube materials are designed in the ventilating pipeline; when the hydrogen concentration sensor senses that the hydrogen concentration in the hydrogen storage tank area exceeds a threshold value, nearby leaked hydrogen is sucked into the exhaust ceiling by the exhaust fan and enters the ventilation pipeline, and after the hydrogen is adsorbed by the multi-layer carbon nano tube material, hydrogen-free air is discharged from the shutter air outlet and forms a separation layer, so that the hydrogen-free air is exhausted from the shutter air outlet. Leaked hydrogen is prevented from leaking and diffusing to the outside of the hydrogen storage tank area. The hydrogen refueling station can efficiently and rapidly respond to the safety event of hydrogen leakage of the hydrogen storage tank, leaked hydrogen can be rapidly pumped and discharged, hydrogen treatment is conducted, and potential safety accidents are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen refueling station equipment, and in particular to an umbrella-type hydrogen leakage safety protection system. Background Art

[0002] In the field of hydrogen refueling station equipment technology, the safe management of hydrogen leaks has always been a key issue. Traditional hydrogen leak protection systems usually include hydrogen sensors, leak alarms and ventilation equipment to detect, warn and handle hydrogen leak incidents. However, these traditional systems have certain limitations in response speed and leak handling efficiency. The traditional system usually only handles hydrogen after extraction and discharge by simply discharging it, and fails to effectively treat and purify the leaked hydrogen, and cannot completely prevent the safety risks that may be caused by hydrogen leaks. With the development of hydrogen energy technology, especially the expansion of hydrogen refueling station facilities and the increase in hydrogen usage, the demand for more efficient and fast-responding hydrogen leak safety protection systems is becoming increasingly urgent. These systems need to be able to quickly initiate effective extraction and treatment measures after detecting a hydrogen leak to ensure that the leaked hydrogen will not cause damage to the surrounding environment and facilities, and avoid potential safety accidents.

[0003] Therefore, the present invention aims to provide an innovative umbrella-type hydrogen leakage safety protection system, which realizes efficient and rapid response and processing to hydrogen leakage events through the combined application of key components such as hollow sandwich exhaust ceiling, ventilation duct, multi-layer carbon nanotube materials, etc. This system can not only quickly detect the situation where the hydrogen concentration exceeds the safety threshold, but also effectively adsorb and process the leaked hydrogen through the centrifugal exhaust fan and multi-layer carbon nanotube materials, and finally discharge pure air without hydrogen, and form a barrier layer to prevent the leaked hydrogen from spreading outside the hydrogen storage tank area.

[0004] The introduction of this umbrella-type hydrogen leakage safety protection system not only improves the level of safety management of hydrogen refueling stations, but also provides reliable technical support for the safe promotion and application of hydrogen energy, helps reduce the risk of potential safety accidents, and promotes the sustainable development and widespread application of hydrogen energy. Summary of the invention

[0005] In order to make up for the shortcomings of the existing hydrogen leakage protection system, the present invention provides an innovative umbrella-type hydrogen leakage safety protection system, which can quickly detect the situation where the hydrogen concentration exceeds the safety threshold, and can also effectively adsorb and treat the leaked hydrogen through a centrifugal exhaust fan and multi-layer carbon nanotube materials, and finally discharge pure air without hydrogen mixed, and form a barrier layer to prevent the leaked hydrogen from diffusing to the outside of the hydrogen storage tank area, thereby achieving efficient and rapid response and treatment of hydrogen leakage incidents. In particular, the measures for effectively adsorbing and treating the leaked hydrogen not only reduce the impact of damage to the surrounding environment and facilities, but also effectively recover hydrogen and reuse the inhaled air.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An umbrella-type hydrogen leakage safety protection system includes a hydrogen storage tank, an alarm, a hydrogen concentration sensor, and also includes a vacuum ceiling with a hollow sandwich structure and an inverted V-shaped umbrella shape and a columnar ventilation duct; the vacuum ceiling is supported on the ventilation duct and communicated with the ventilation duct; the bottom of the ventilation duct is communicated with a louver air outlet arranged on the ground outside the hydrogen filling station through a pipeline;

[0008] The bottom surface of the exhaust ceiling is provided with a plurality of exhaust holes for sucking in leaked gas;

[0009] A centrifugal exhaust fan is installed at the top of the ventilation duct; multiple layers of carbon nanotube material are arranged in the ventilation duct;

[0010] The hydrogen concentration sensor, centrifugal blower and alarm are connected to the control and processing center;

[0011] When the hydrogen concentration sensor senses that the hydrogen concentration in the nearby hydrogen storage tank area exceeds the threshold, the control processing center controls the alarm to start and the centrifugal exhaust fan to turn on, so that the leaked hydrogen nearby is sucked into the exhaust ceiling from the exhaust hole by the centrifugal exhaust fan and enters the ventilation duct. After being adsorbed by multiple layers of carbon nanotube material, pure air without hydrogen is discharged from the louver air outlet and forms a partition layer to surround the hydrogen refueling station, preventing the leaked hydrogen from leaking and spreading to the outside of the hydrogen storage tank area.

[0012] In a preferred implementation, the louvered air outlets are distributed in a ring or frame shape on the ground outside the hydrogen refueling station, enclosing the hydrogen refueling station.

[0013] In a preferred embodiment, the hydrogen concentration sensor is arranged on the outer wall of the ventilation duct, close to the hydrogen storage tank.

[0014] In a preferred embodiment, the alarm has sound and light alarm functions so as to promptly notify on-site personnel to take emergency measures when hydrogen leaks.

[0015] In a preferred embodiment, the centrifugal blower has a variable speed control function and can be adjusted in speed according to different hydrogen concentrations.

[0016] In a preferred embodiment, the sensitivity of the hydrogen concentration sensor is adjustable to meet the detection requirements in different environments and to set different hydrogen concentration alarm thresholds as required.

[0017] In a preferred embodiment, the hydrogen storage tank is supported by a hydrogen storage tank base bracket and lifted off the high-temperature ground.

[0018] In a preferred implementation, the hydrogen storage tank base bracket is made of high temperature resistant material, the height is adjustable to adapt to installation environments with different height requirements, and is equipped with a shockproof function to reduce the vibration of the hydrogen storage tank under the action of external forces, thereby ensuring the safety and stability of the hydrogen storage tank.

[0019] In a preferred implementation, the number and distribution of the extraction holes can be optimized according to the hydrogen leakage risk area in the actual use environment, but need to be evenly distributed to ensure efficient extraction of hydrogen.

[0020] In a preferred embodiment, the louver air outlet is provided with a protective net to prevent external debris from entering; the wind direction can be adjusted to adjust the air outlet direction according to actual conditions.

[0021] In a preferred embodiment, the material of the hollow sandwich exhaust ceiling is a fire-proof and corrosion-resistant metal material or a composite material.

[0022] In a preferred implementation, the hydrogen storage tanks are arranged horizontally, and a certain safety distance is maintained between different hydrogen storage tanks to prevent the leakage of hydrogen in a single tank from affecting other tanks; they are away from high-temperature heat sources and coated with a high-temperature resistant coating on the surface to prevent the high temperature from affecting the hydrogen storage tanks.

[0023] In a preferred embodiment, the ventilation duct is made of corrosion-resistant materials to improve the durability and reliability of the system; the internal structure is designed with a guide device to optimize the airflow path and improve the hydrogen adsorption and emission efficiency.

[0024] In a preferred implementation, the carbon nanotube material is arranged in multiple layers to enhance the adsorption effect of hydrogen, and can adsorb and purify the leaked hydrogen in a short time, ensuring that the exhausted air is free of hydrogen.

[0025] In a preferred implementation, the hydrogen storage tank base bracket is made of high temperature resistant material to ensure the stability of the hydrogen storage tank in a high temperature environment; the height is adjustable to adapt to installation environments with different height requirements; and it is designed with a shockproof function, which can effectively reduce the vibration of the hydrogen storage tank under the action of external forces, ensuring the safety and stability of the hydrogen storage tank.

[0026] In a preferred implementation, the number and distribution of the extraction holes can be optimized according to the hydrogen leakage risk area in the actual use environment, but need to be evenly distributed to ensure efficient extraction of hydrogen.

[0027] In a preferred embodiment, the louver air outlet is provided with a protective net to prevent external debris from entering the ventilation duct; the adjustable wind direction design can adjust the air outlet direction according to actual conditions, further improving the hydrogen leakage protection effect of the system.

[0028] In a preferred implementation, the control and processing center is provided with automatic detection and alarm functions, and can monitor the hydrogen concentration and equipment operating status in real time through a remote monitoring system.

[0029] In a preferred embodiment, the system also includes a backup power supply system. When the main power supply fails, the backup power supply system can automatically switch to ensure the normal operation of the system.

[0030] Compared with the existing technology, this system has the following advantages:

[0031] 1. Rapid response capability: The system is equipped with a hydrogen concentration sensor and a control processing center, which can monitor the changes in hydrogen concentration in real time and quickly initiate response measures. Once a hydrogen leak is detected, the system immediately activates the alarm and centrifugal exhaust fan to quickly exhaust the leaked hydrogen, greatly reducing the potential harm of the leak to the surrounding environment and facilities.

[0032] 2. Efficient processing capability: The ventilation duct is designed with multi-layer carbon nanotube materials, which have excellent hydrogen adsorption capacity. After the leaked hydrogen is adsorbed, pure air without hydrogen is discharged, which effectively prevents the leaked hydrogen from spreading outside the hydrogen storage tank area, improving the processing efficiency and safety.

[0033] 3. Facility safety: The structural design of the hollow interlayer exhaust ceiling and ventilation duct is stable, which can effectively support and protect the various components of the system. The base bracket can safely support the hydrogen storage tank while preventing the tank from contacting the high-temperature ground, reducing potential safety risks.

[0034] 4. Environmentally friendly: The system uses multi-layer carbon nanotube materials to adsorb hydrogen and emits purified pure air, which meets environmental protection requirements. At the same time, the system design takes into account energy consumption and resource utilization efficiency to minimize negative impacts on the environment.

[0035] 5. Easy to operate: The system is equipped with an intelligent control center, which is easy to operate and can automatically monitor and respond to hydrogen leakage incidents, reducing the possibility of human intervention and operational errors, and improving the reliability and safety of the system.

[0036] 6. Wide applicability: It is applicable to various types of hydrogen refueling stations and hydrogen energy facilities, and can effectively deal with hydrogen leakage problems under different scales and environmental conditions, providing reliable guarantee for the safe promotion and application of hydrogen energy.

[0037] In summary, the umbrella-type hydrogen leakage safety protection system, through innovative design and technical application, not only effectively responds to the safety challenges of hydrogen leakage and improves the safety management level of hydrogen refueling stations, but also provides reliable technical support for the safe promotion and application of hydrogen energy. It has broad application prospects and market potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural diagram of the present invention;

[0039] Figure 2 A top view of the system of the present invention;

[0040] In the figure: 1. Exhaust ceiling; 2. Alarm; 3. Centrifugal exhaust fan; 4. Hydrogen concentration sensor; 5. Hydrogen storage tank; 6. Ventilation duct; 7. Carbon nanotube material; 8. Hydrogen storage tank base bracket; 9. Exhaust hole; 10. Louver air outlet. DETAILED DESCRIPTION

[0041] In order to make those skilled in the art better understand the technical solution, the present invention will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0042] like Figure 1 and Figure 2 The present invention provides an umbrella-type hydrogen leakage safety protection system, comprising: an exhaust ceiling 1; an alarm 2; a centrifugal exhaust fan 3; a hydrogen concentration sensor 4; a hydrogen storage tank 5; a ventilation duct 6; a carbon nanotube material 7; a hydrogen storage tank base bracket 8; an exhaust hole 9; and a louver air outlet 10. The specific scheme of this embodiment is: an umbrella-type hydrogen leakage safety protection system, comprising an exhaust ceiling 1 and a hydrogen storage tank 5; the hollow interlayer exhaust ceiling 1 is in an inverted V-shaped umbrella shape; a plurality of exhaust holes 9 are installed in the hollow interlayer exhaust ceiling 1 and an alarm 2 is installed on both sides of the edge; the exhaust hole 9 is communicated with a ventilation duct 6 that serves as a pillar to support the exhaust ceiling 1; a centrifugal exhaust fan 3 is installed at the top of the ventilation duct 6, and a hydrogen concentration sensor 4 is installed on both sides of the outer wall close to the hydrogen storage tank 5; the ventilation duct 6 is provided with a centrifugal exhaust fan 3 ... A multilayer carbon nanotube material 7 is designed inside the pipe 6; the hydrogen storage tank 5 is supported by the hydrogen storage tank base bracket 8 to lift it off the high-temperature ground; the end of the ventilation duct 6 is connected to the pipe of the louver air outlet 10; the hydrogen concentration sensor 4, the centrifugal exhaust fan 3 and the alarm 2 are connected to the control and processing center; when the hydrogen concentration sensor 4 senses that the hydrogen concentration in the nearby hydrogen storage tank 5 area exceeds the threshold, the control and processing center controls the alarm 2 to start, and the centrifugal exhaust fan 3 is turned on, so that the nearby leaked hydrogen is sucked into the exhaust ceiling 1 from the exhaust hole 9 by the centrifugal exhaust fan 3 and enters the ventilation duct 6. After being adsorbed by the multilayer carbon nanotube material 7, the pure air without hydrogen is discharged from the louver air outlet 10 and forms a partition layer to prevent the leaked hydrogen from leaking and spreading to the outside of the hydrogen storage tank 5 area.

[0043] Specifically, the material of the hollow sandwich exhaust ceiling 1 is a fireproof and corrosion-resistant metal material or a composite material;

[0044] The alarm 2 has sound and light alarm functions, so as to promptly notify the on-site personnel to take emergency measures when hydrogen leaks;

[0045] The centrifugal exhaust fan 3 has a variable speed control function and can be adjusted according to the different hydrogen concentrations;

[0046] The sensitivity of the hydrogen concentration sensor 4 is adjustable to meet the detection requirements in different environments and to set different hydrogen concentration alarm thresholds as required;

[0047] The hydrogen storage tanks 5 are arranged horizontally, and a certain safety distance is maintained between different hydrogen storage tanks 5 to prevent the leakage of hydrogen from a single tank from affecting other tanks. The hydrogen storage tanks 5 are away from high-temperature heat sources and are coated with a high-temperature resistant coating on the surface to prevent the high temperature from affecting the hydrogen storage tanks 5;

[0048] The ventilation duct 6 serves as a pillar to support the hollow sandwich exhaust ceiling 1, and a centrifugal exhaust fan 3 is installed on the top of the interior. The ventilation duct 6 is made of corrosion-resistant materials to improve the durability and reliability of the system, and the internal structure is designed with a guide device to optimize the airflow path and improve the hydrogen adsorption and emission efficiency;

[0049] The carbon nanotube material 7 is arranged in multiple layers to enhance the adsorption effect of hydrogen, and can adsorb and purify the leaked hydrogen in a short time to ensure that the exhausted air is free of hydrogen.

[0050] The base support material is a high temperature resistant material to ensure the stability of the hydrogen storage tank 5 in a high temperature environment. The base support height can be adjusted to adapt to installation environments with different height requirements and is designed with a shockproof function, which can effectively reduce the vibration of the hydrogen storage tank 5 under the action of external forces and ensure the safety and stability of the hydrogen storage tank 5;

[0051] The number and distribution of the extraction holes 9 can be optimized according to the hydrogen leakage risk area in the actual use environment, but need to be evenly distributed to ensure efficient extraction of hydrogen;

[0052] The louver air outlet 10 is provided with a protective net to prevent external debris from entering the ventilation duct 6 and has an adjustable wind direction design, which can adjust the air outlet direction according to actual conditions, further improving the hydrogen leakage protection effect of the system;

[0053] The control and processing center is equipped with automatic detection and alarm functions, and can monitor the hydrogen concentration and equipment operating status in real time through the remote monitoring system;

[0054] The system also includes a backup power system, which can automatically switch to ensure normal operation of the system when the main power fails.

[0055] like Figure 1 and Figure 2 As shown, an umbrella-type hydrogen leakage safety protection system is applied to a hydrogen refueling station with a risk of hydrogen leakage, comprising the following steps:

[0056] 1) The hydrogen concentration sensor 4 monitors the hydrogen concentration around the hydrogen storage tank 5 in real time. Once it detects that the hydrogen concentration exceeds a preset safety threshold, the sensor immediately sends a signal to the control processing center;

[0057] 2) After the control processing center receives the signal from the sensor, it immediately activates the alarm 2 to sound an alarm to alert the on-site personnel;

[0058] 3) At the same time, the control processing center instructs the centrifugal exhaust fan 3 to start, and the centrifugal exhaust fan 3 begins to extract the leaked hydrogen through the exhaust hole 9 and guides it into the ventilation duct 6;

[0059] 4) The extracted hydrogen enters the ventilation duct 6, and the multilayer carbon nanotube material 7 designed in the ventilation duct 6 begins to adsorb and process the leaked hydrogen;

[0060] 5) The carbon nanotube material 7 has a highly efficient adsorption capacity, which can quickly separate and adsorb harmful components in hydrogen, ensuring that the exhausted air is pure air without hydrogen;

[0061] 6) The treated pure air without hydrogen is discharged from the end louver air outlet 10 of the ventilation duct 6. This air forms an effective isolation layer to prevent the leaked hydrogen from spreading outside the hydrogen storage tank 5 area;

[0062] 7) The control and processing center records the time, processing process and results of each hydrogen leakage incident. These data are used for subsequent safety management and accident analysis to improve the system's response and processing capabilities.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An umbrella-type hydrogen leakage safety protection system, comprising a hydrogen storage tank (5), an alarm (2), and a hydrogen concentration sensor (4), characterized in that: It also includes a vacuum ceiling (1) with a hollow sandwich structure and an inverted V-shaped umbrella shape and a columnar ventilation duct (6); the vacuum ceiling (1) is supported on the ventilation duct (6) and is connected to the ventilation duct (6); the bottom of the ventilation duct (6) is connected to a louvered air outlet (10) arranged on the ground outside the hydrogen filling station through a pipeline; The bottom surface of the exhaust ceiling (1) is provided with a plurality of exhaust holes (9) for sucking in leaked gas; A centrifugal exhaust fan (3) is installed at the top of the ventilation duct (6); a multilayer carbon nanotube material (7) is arranged inside the ventilation duct (6); The hydrogen concentration sensor (4), the centrifugal blower (3) and the alarm (2) are connected to a control processing center; When the hydrogen concentration sensor (4) senses that the hydrogen concentration in the nearby hydrogen storage tank (5) area exceeds a threshold value, the control processing center controls the alarm (2) to start and the centrifugal exhaust fan (3) to turn on, so that the nearby leaked hydrogen is sucked into the exhaust ceiling (1) from the exhaust hole (9) by the centrifugal exhaust fan (3) and enters the ventilation duct (6). After being adsorbed by the multi-layer carbon nanotube material (7), pure air without hydrogen is discharged from the louver air outlet (10) and forms a partition layer to surround the hydrogen filling station, thereby preventing the leaked hydrogen from leaking and spreading to the outside of the hydrogen storage tank (5) area.

2. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The louvered air outlets (10) are distributed in a ring or frame shape on the ground outside the hydrogen refueling station, enclosing the hydrogen refueling station.

3. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The hydrogen concentration sensor (4) is arranged on the outer wall of the ventilation duct (6), close to the hydrogen storage tank (5).

4. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The alarm (2) has an audible and visual alarm function, so as to promptly notify on-site personnel to take emergency measures when hydrogen leaks.

5. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The centrifugal exhaust fan (3) has a speed control function and can be adjusted in speed according to different hydrogen concentrations.

6. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The sensitivity of the hydrogen concentration sensor (4) is adjustable to meet the detection requirements in different environments.

7. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The hydrogen storage tank (5) is supported by a hydrogen storage tank base bracket (8) and is lifted off the high-temperature ground.

8. The umbrella-type hydrogen leakage safety protection system according to claim 7 is characterized in that: The hydrogen storage tank base bracket (8) is made of high temperature resistant material, and its height is adjustable to adapt to installation environments with different height requirements. It is provided with a shockproof function, which can reduce the vibration of the hydrogen storage tank (5) under the action of external forces, thereby ensuring the safety and stability of the hydrogen storage tank (5).

9. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The number and distribution of the extraction holes (9) can be optimized and designed according to the hydrogen leakage risk area in the actual use environment, but need to be evenly distributed to ensure efficient extraction of hydrogen.

10. The umbrella-type hydrogen leakage safety protection system according to claim 1 is characterized in that: The louver air outlet (10) is provided with a protective net to prevent external debris from entering; the wind direction can be adjusted according to actual conditions.

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