Hydrogen discharging and explosion venting device and hydrogen production prefabricated cabin
The hydrogen venting and explosion relief system addresses the risk of hydrogen explosions by rapidly venting gas and redirecting explosion waves, ensuring safety in hydrogen production systems.
Patent Information
- Application Number
- CN202422209632.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, hydrogen is flammable and explosive, which leads to extremely prone to explosion when hydrogen is leaked in the hydrogen-making prefabricated chamber, endangering the safety of equipment and personnel.
A hydrogen exhaust and explosion relief device was designed, using the principle of air convection through the ventilator and explosion relief plate structure to quickly discharge hydrogen and release shock waves during explosion to prevent the explosion from harming equipment and personnel.
It effectively reduces the risk of hydrogen explosion, improves the safety of hydrogen production prefabricated chambers, prevents hydrogen leakage and alleviates the damage of explosion shock waves.
Smart Images
Figure CN223105828U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen production and explosion prevention, and particularly relates to a hydrogen discharging and explosion venting device and a hydrogen production prefabricated cabin. Background Art
[0002] At present, due to the advantages of faster manufacturing and assembly, stable pricing and transportation costs, and less restricted by permits and site limitations, the skid-mounted electrolytic water hydrogen production prefabricated cabin has become the mainstream in the hydrogen production industry with certain advantages in terms of time and money costs. However, due to the characteristics of hydrogen being flammable and explosive, and the highly oxidizing effect of pure oxygen, once leaked in a closed box, an explosion is extremely likely to occur. Moreover, once an explosion occurs, there are great potential safety hazards to the equipment and personnel at the site where the hydrogen production prefabricated cabin is located. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to overcome the defect that in the prior art, when hydrogen leaks during the hydrogen production process, an explosion is extremely likely to occur, endangering the hydrogen production equipment and operators, and to provide a hydrogen discharging and explosion venting device and a hydrogen production prefabricated cabin.
[0004] The utility model solves the above technical problem through the following technical solutions:
[0005] The utility model discloses a hydrogen discharging and explosion venting device, comprising: a hinge, a base, an explosion venting plate and a ventilator; the explosion venting plate and the base are connected through the hinge, the explosion venting plate is provided with ventilation holes, and the hydrogen inlet of the ventilator is installed above the ventilation holes; the base is used for installing the hydrogen discharging and explosion venting device on the top of the hydrogen production prefabricated cabin.
[0006] Optionally, the hydrogen discharging and explosion venting device further comprises: a pin, the pin passes through the first round hole of the explosion venting plate and the second round hole of the base to fix the explosion venting plate and the base.
[0007] Optionally, a first sealing member is arranged between the explosion venting plate and the base, and the first sealing member is used for sealing the gap between the explosion venting plate and the base.
[0008] Optionally, the hydrogen discharging and explosion venting device further comprises: an explosion-proof motor, and the explosion-proof motor is electrically connected with the ventilator.
[0009] Optionally, the ventilator comprises a spherical outer shell, a turbine head and a central column shaft are arranged inside the spherical outer shell, the turbine head is located at the center inside the spherical outer shell, one end of the central column is connected with the turbine head, and the other end is connected with the explosion-proof motor.
[0010] Optionally, the hydrogen discharging and explosion venting device further comprises: a filter, and the filter is located at the air outlet and air inlet of the ventilator.
[0011] Optionally, a second seal is provided between the housing of the ventilator and the filter.
[0012] A hydrogen production prefabricated cabin includes a hydrogen discharge and explosion venting device as described in any one of the above.
[0013] Optionally, the hydrogen production prefabricated cabin includes a third seal, and the third seal is provided between the gap between the hydrogen production prefabricated cabin and the base.
[0014] The positive and progressive effects of the present utility model are as follows: The hydrogen discharge and explosion venting device utilizes the principle of air convection to improve the air flow in the vertical direction, so as to discharge hydrogen faster when hydrogen leaks but has not exploded yet. When an explosion occurs, the shock wave is released from the explosion vent plate above the prefabricated cabin, preventing the operator from being injured by the explosion. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a schematic structural diagram of a hydrogen discharge and explosion venting device provided by an exemplary embodiment of the present utility model.
[0016] Figure 2 FIG. is an enlarged schematic diagram of a partial structure of a hydrogen discharge and explosion venting device provided by an exemplary embodiment of the present utility model.
[0017] Figure 3 FIG. is another enlarged schematic diagram of a partial structure of a hydrogen discharge and explosion venting device provided by an exemplary embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following gives a preferred embodiment and combines the drawings to more clearly and completely illustrate the present utility model, but the present utility model is not limited to the scope of the described embodiments.
[0019] In the embodiments of the present utility model, prefix words such as "first" and "second" are only used to distinguish different described objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal numbers and other prefix words for distinguishing described objects in the embodiments of the present utility model does not limit the described objects. The description of the described objects refers to the description in the context of the claims or embodiments, and should not constitute unnecessary limitations because of the use of such prefix words. In addition, in the description of this embodiment, unless otherwise specified, the meaning of "a plurality" is two or more.
[0020] Figure 1Schematic structural diagram of a hydrogen discharge and explosion venting device provided for an exemplary embodiment of the present utility model, including: a hinge 6, a base 1, an explosion venting plate 4, and a ventilator 5; the explosion venting plate 4 and the base 1 are connected by the hinge 6, there are ventilation holes on the explosion venting plate 4, and the hydrogen inlet of the ventilator 5 is installed above the ventilation holes; the base 1 is used to install the hydrogen discharge and explosion venting device on the top of the hydrogen production prefabricated cabin. The hydrogen production prefabricated cabin usually uses the method of electrolyzing water to produce hydrogen, that is, water is decomposed into hydrogen and oxygen, and the carbon emissions during the production process are very low; it can also be installed in a hydrogen production prefabricated cabin that uses other methods to generate hydrogen, such as a hydrogen production prefabricated cabin using the steam methane reforming method, where natural gas reacts with steam under high temperature and the action of a catalyst to generate hydrogen and carbon monoxide.
[0021] In this embodiment, the structure, component positions, and component connection relationships of the hydrogen discharge and explosion venting device are as follows: In addition to being connected to the explosion venting plate 4, the hinge 6 is also connected to the base 1, and the explosion venting plate 4 can be rotated through the hinge 6 to open or close; there are ventilation holes on the explosion venting plate 4 for discharging hydrogen; the ventilation holes are provided on the explosion venting plate 4, and the specific shape of the explosion venting plate 4 and the formed ventilation holes can be set according to needs; the explosion venting plate 4 can be customized and designed according to different application requirements and pressure levels to meet specific safety requirements; the material of the explosion venting plate 4 needs to consider factors such as the expected pressure load, use environment, durability, and maintenance cost, such as metals, composite materials, and special glasses, etc.; the ventilator 5 can be installed above the ventilation holes of the explosion venting plate 4. When hydrogen leaks, the hydrogen enters the ventilator 5 through the ventilation holes, and the natural wind drives the turbine to rotate, discharging the hydrogen. The hot air generated during the hydrogen production process rises, which can also accelerate air circulation and quickly discharge the hydrogen, reducing the risk of hydrogen explosion.
[0022] In this embodiment, the principle of the hydrogen discharge and explosion venting device reducing the harm of hydrogen explosion is: the strength of the explosion venting plate 4 is much lower than that of the hydrogen production prefabricated cabin. When hydrogen leaks and explodes, due to the strength of the explosion venting plate 4 being lower than that of the hydrogen production prefabricated cabin, the shock wave of the explosion is released from the explosion venting plate 4, and the explosion venting plate 4 quickly breaks, releasing pressure to prevent the explosion energy from causing greater damage to equipment such as the hydrogen production prefabricated cabin. And because the hinge 6 is connected to the explosion venting plate 4, it can prevent the explosion venting plate 4 from being blown away and falling from a height to cause injury to people.
[0023] In this embodiment, the ventilator of the hydrogen discharge and explosion venting device quickly discharges hydrogen when hydrogen leaks by using the principle of air convection. The principle of air convection refers to the phenomenon of air flow formed by uneven heating of air, where the heated air expands and rises, while the cooled air sinks. Hydrogen enters the ventilator through the hydrogen inlet of the ventilator. Since the temperature inside the ventilator is relatively high, the hydrogen is heated and rises, while the air inside the ventilator is cooled and sinks. The hydrogen flows through the rotating turbine blade inside the ventilator towards the air outlet and is discharged to the outside from the air outlet to improve the ventilation effect. In this embodiment, the hydrogen discharge and explosion venting device utilizes the principle of air convection to enhance the air flow in the vertical direction, thereby discharging hydrogen faster when hydrogen leaks but has not yet exploded. When an explosion occurs, the shock wave is released from the explosion venting plate above the prefabricated cabin to prevent the operator from being injured by the explosion.
[0024] Figure 2 The structure enlarged schematic diagram of the hydrogen discharge and explosion venting device provided for an exemplary embodiment of the present utility model. The hydrogen discharge and explosion venting device further includes: a pin 3, and the pin 3 passes through the first round hole of the explosion venting plate 4 and the second round hole of the base 1 to fix the explosion venting plate 4 and the base 1.
[0025] In this embodiment, the explosion venting plate 4 and the base 1 are connected by a hinge 6. The explosion venting plate 4 can be rotated through the hinge 6 to open or close, while the base remains stationary. When the explosion venting plate 4 is closed, to prevent the explosion venting plate 4 from shaking due to external interference, a pin 3 is installed on the explosion venting plate 4 to fix the explosion venting plate and keep it in a closed state without being affected by external interference. The number of pins 3 can be set according to requirements. When multiple pins 3 need to be installed to enhance the fixing effect, corresponding round holes need to be provided on the explosion venting plate and the base, and the pins 3 are distributed in a grid pattern at the other end opposite to the end where the explosion venting plate 4 is connected to the hinge 6.
[0026] In this embodiment, by installing pins on the explosion venting plate, it is prevented that the explosion venting plate changes its closed or open state due to external interference.
[0027] Figure 3 The structure enlarged schematic diagram of another hydrogen discharge and explosion venting device provided for an exemplary embodiment of the present utility model. A first seal 2 is provided between the explosion venting plate and the base. The first seal 2 can be a sealing strip, an O-ring, etc. The first seal 2 is used to seal the gap between the explosion venting plate and the base.
[0028] In this embodiment, during the connection process between the explosion venting plate 4 and the base 1, due to process or material reasons, good sealing performance cannot be achieved, which may cause hydrogen to leak to the outside and increase safety risks. Therefore, it is necessary to use the first seal 2 to seal the connection between the explosion venting plate 4 and the base 1. For example, the sealing strip is filled into the gap between the explosion venting plate 4 and the base 1 to form a sealed state; the number of the first seals 2 is specifically set according to the area of the connection.
[0029] In this embodiment, seals are used at the joints of the explosion vent panel, base, and hinge to improve the sealing performance of the hydrogen exhaust and explosion venting device, prevent hydrogen leakage, and reduce safety risks.
[0030] In one embodiment, the hydrogen exhaust and explosion venting device further includes: an explosion-proof motor, which is electrically connected to the ventilator.
[0031] In this embodiment, the ventilator is driven by wind power to rotate the turbine. The explosion-proof motor is used to continue driving the turbine to rotate by the motor when the wind power is insufficient. The explosion-proof motor is selected because there is a risk of explosion if an ordinary motor leaks electricity in a hydrogen-rich environment.
[0032] In this embodiment, by installing an explosion-proof motor, the ventilator can normally exhaust hydrogen even when the wind power is insufficient, and compared with an ordinary motor, the risk of explosion of the ventilator in a hydrogen-rich environment is reduced.
[0033] In one embodiment, the ventilator 5 includes a spherical housing. Inside the spherical housing, there is a turbine head and a central column. The turbine head is located at the center inside the spherical housing. One end of the central column is connected to the turbine head, and the other end is connected to the explosion-proof motor. When the explosion-proof motor starts, the power drives the central shaft to rotate, thereby causing the blades of the turbine head to rotate and exhaust hydrogen.
[0034] In this embodiment, the housing of the ventilator 5 is spherical in shape. The spherical housing ventilator can utilize the principle of the natural wind speed in nature to drive the rotation of the turbine of the fan and the convection of indoor and outdoor air. Due to the design of the ventilator, it can capture wind energy, and the wind pressure difference drives the air flow, introducing fresh outdoor air into the ventilator and exhausting the hydrogen inside the ventilator. The air inlet and outlet of the ventilator are both on the spherical housing of the ventilator. There can be only one air outlet, or both an air inlet and an air outlet can be provided at the same time; hydrogen enters the ventilator through the hydrogen inlet of the ventilator. Since the temperature of the hydrogen is relatively high inside the ventilator, the hydrogen rises due to heat, and the air inside the ventilator cools and descends. The hydrogen flows through the rotating blades of the turbine head inside the ventilator and is discharged from the air outlet to the outside to improve the ventilation and air exchange effect. The hydrogen exhaust and explosion venting device quickly and safely discharges the leaked hydrogen in the hydrogen production prefabricated cabin through the spherical ventilator.
[0035] In this embodiment, by setting a spherical ventilator and utilizing the principle of the natural wind speed in nature to drive the rotation of the turbine of the fan and the convection of indoor and outdoor air, the air flow in the vertical direction is accelerated, and the leaked hydrogen in the hydrogen production prefabricated cabin is quickly and safely discharged.
[0036] In one embodiment, the hydrogen exhaust and explosion venting device further includes: a filter, which is located at the air outlet and / or air inlet of the ventilator.
[0037] Hydrogen enters the ventilator through the hydrogen inlet of the ventilator. Since the temperature is relatively high inside the ventilator, the hydrogen heats up and rises, while the air inside the ventilator cools down and descends. The hydrogen flows through the rotating turbine head blades inside the ventilator and discharges to the outside through the air outlet.
[0038] In this embodiment, filters are provided at the air outlet and air inlet of the ventilator. The filters on the ventilator can protect the equipment inside the ventilator, such as the turbine head, etc., and prevent equipment damage or efficiency reduction caused by dust accumulation.
[0039] In one embodiment, a second seal is provided between the outer shell of the ventilator and the filter.
[0040] In this embodiment, setting a second seal between the outer shell of the ventilator and the filter can ensure that the air flows along a predetermined path, reduce air leakage, help improve the air exchange efficiency of the ventilator, and also reduce the air flow noise in the ventilator, providing a quieter operating environment.
[0041] A hydrogen production prefabricated cabin includes a hydrogen discharge and explosion venting device as described in any one of the above embodiments.
[0042] In this embodiment, the hydrogen production prefabricated cabin is installed with a hydrogen discharge and explosion venting device, enhancing the safety of the hydrogen production prefabricated cabin during operation. When there is a risk of explosion due to hydrogen leakage, the hydrogen discharge and explosion venting device installed on the hydrogen production prefabricated cabin can change the direction of the explosion shock wave and reduce the explosion power, reducing the harm to the hydrogen production prefabricated cabin and the staff.
[0043] In one embodiment, the hydrogen production prefabricated cabin includes a third seal, and the third seal is provided between the gap between the hydrogen production prefabricated cabin and the base.
[0044] In this embodiment, there is also a gap between the hydrogen production prefabricated cabin and the base. When hydrogen leaks, it is easy to flow to the outside. Therefore, a third seal is used to seal the gap between the hydrogen production prefabricated cabin and the base to prevent hydrogen from flowing to the outside and reduce the potential hazards and risks of explosion.
[0045] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only for illustration. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.
Claims
1. A hydrogen discharging and explosion venting device, characterized in that, Comprising: A hinge, a base, a pressure relief panel, and a ventilator; the pressure relief panel and the base are connected by the hinge, there are ventilation holes on the pressure relief panel, and the hydrogen inlet of the ventilator is installed above the ventilation holes; the base is used to install the hydrogen discharge and pressure relief device on the top of the hydrogen production prefabricated cabin.
2. The hydrogen discharge and explosion relief device according to claim 1, wherein The hydrogen discharge and pressure relief device further includes: a pin, the pin passes through the first round hole of the pressure relief panel and the second round hole of the base to fix the pressure relief panel and the base.
3. The hydrogen exhaust and explosion relief device according to claim 1, characterized in that A first seal is provided between the pressure relief panel and the base, and the first seal is used to seal the gap between the pressure relief panel and the base.
4. The hydrogen exhaust and explosion relief device according to claim 1, wherein, The hydrogen discharge and pressure relief device further includes: an explosion-proof motor, and the explosion-proof motor is electrically connected to the ventilator.
5. The hydrogen discharge and explosion relief device according to claim 4, characterized in that, The ventilator includes a spherical housing, a turbine head and a central column are provided inside the spherical housing, the turbine head is located at the center inside the spherical housing, one end of the central column is connected to the turbine head, and the other end is connected to the explosion-proof motor.
6. The hydrogen discharging and explosion venting device according to any one of claims 1-4, characterized in that The hydrogen discharge and pressure relief device further includes: a filter, and the filter is located at the air outlet and air inlet of the ventilator.
7. The hydrogen exhausting and explosion venting device according to claim 6, wherein, A second seal is provided between the housing of the ventilator and the filter.
8. A hydrogen production prefabricated cabin, characterized in that, Including the hydrogen discharge and pressure relief device according to any one of claims 1-7.
9. The hydrogen production prefabricated cabin according to claim 8, characterized in that, The hydrogen production prefabricated cabin includes a third seal, and the third seal is provided between the gap between the hydrogen production prefabricated cabin and the base.