An explosion-proof system for hydrogen production by water electrolysis

Abstract

The application discloses a kind of water electrolysis hydrogen production explosion-proof system, including shell, partition, hydrogen production module, power supply control module and fan assembly, partition is divided into first chamber and second chamber with shell, hydrogen production module and power supply control module are integrated in shell and hydrogen production module and power supply control module are respectively arranged in first chamber and second chamber to reduce volume and easy with staff operation and maintenance, power supply control module is connected with hydrogen production module by cable assembly to control hydrogen production module operation and power supply for hydrogen production module to hydrogen production, shell is provided with air inlet with second chamber communication, and fan assembly is communicated with second chamber by the air inlet of second chamber to guide wind flow from air inlet into second chamber to increase the air pressure of second chamber to enable second chamber to isolate hydrogen, therefore, the application can reduce cost, reduce volume and be easy to staff operation and maintenance while explosion-proof.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water electrolysis hydrogen production equipment, in particular to a water electrolysis hydrogen production explosion-proof system. BACKGROUND

[0002] The common water electrolysis hydrogen production equipment is mainly divided into two parts: a hydrogen production process equipment for water electrolysis hydrogen production and a power distribution equipment for power supply of the hydrogen production process equipment. Since the hydrogen produced by the hydrogen production process equipment is easy to explode when contacting with the electric spark of the power distribution room, currently, there are two technical forms in the design of the water electrolysis hydrogen production equipment: one is to set the hydrogen production process equipment and the power distribution equipment in two different cabins respectively and prevent the hydrogen from contacting with the power distribution equipment through the spacing between the two cabins; the other is to set the hydrogen production process equipment and the power distribution equipment in the same cabin and prevent the hydrogen from contacting with the electric spark to explode by using the explosion-proof power distribution equipment.

[0003] Although the technical form of setting the hydrogen production process equipment and the power distribution equipment in two different cabins respectively can prevent explosion, it occupies a large area, resulting in high cost and difficulty for the staff to operate and maintain the equipment. Although the explosion-proof power distribution equipment is used to integrate the hydrogen production process equipment and the power distribution equipment in the same cabin, it can prevent explosion while reducing the occupied area, but due to the use of explosion-proof products and large heat dissipation of the power distribution equipment, the cost is high and the volume of the whole cabin is large. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a water electrolysis hydrogen production explosion-proof system which can prevent explosion while reducing cost, volume and facilitating operation and maintenance of the staff.

[0005] According to the water electrolysis hydrogen production explosion-proof system of the first aspect of the present application, the shell is provided with a partition plate to divide the shell into at least a first chamber and a second chamber, and the shell is also provided with an air inlet communicating with the second chamber. The hydrogen production module is arranged in the shell and located in the first chamber. The power supply control module is arranged in the shell and located in the second chamber. The power supply control module is connected with the hydrogen production module through a cable assembly to control the operation and power supply of the hydrogen production module. The fan assembly is arranged in the shell and used to guide the air flow from the air inlet into the second chamber to increase the air pressure of the second chamber.

[0006] According to the water electrolysis hydrogen production explosion-proof system of the present application, at least the following beneficial effects are achieved:

[0007] The application discloses a water electrolysis hydrogen production explosion-proof system, which can integrate a hydrogen production module and a power supply control module in a shell to reduce the volume and facilitate use, a partition plate is arranged in the shell to divide the shell into a first chamber and a second chamber, the hydrogen production module and the power supply control module are arranged in the first chamber and the second chamber respectively, the power supply control module is connected with the hydrogen production module through a cable assembly to control the operation of the hydrogen production module and supply power for the hydrogen production module to produce hydrogen, and a fan assembly is further arranged on the shell, the fan assembly is communicated with the second chamber through an air inlet of the second chamber to guide air flow into the second chamber through the air inlet to increase the air pressure of the second chamber so that the second chamber can isolate hydrogen.

[0008] According to some embodiments of the application, a pressure sensor is arranged in the second chamber, the pressure sensor is connected with the power supply control module to provide a pressure signal, the power supply control module can at least convert the pressure signal into a control signal, the power supply control module is electrically connected with the fan assembly to output the control signal to control the on-off of the fan assembly, when the pressure sensor detects that the pressure of the second chamber is less than a minimum pressure threshold, the power supply control module outputs a first control signal and controls the fan assembly to rotate to increase the pressure of the second chamber, and when the pressure sensor detects that the pressure of the second chamber is greater than a maximum pressure threshold, the power supply control module outputs a second control signal and controls the fan assembly to stop rotating.

[0009] According to some embodiments of the application, a temperature regulating assembly is arranged in the second chamber, the power supply control module is connected with the temperature regulating assembly to provide a temperature control signal to control the temperature regulating assembly to regulate the temperature of the second chamber.

[0010] According to some embodiments of the application, a base is arranged in the second chamber of the shell, a wiring groove is arranged in the base, and the power supply control module is arranged on the base, and the cable assembly is arranged in the wiring groove.

[0011] According to some embodiments of the application, the cable assembly comprises a communication cable and a power cable, the power supply control module is connected with the hydrogen production module through the communication cable to transmit a control instruction to control the operation of the hydrogen production module, the power supply control module is connected with the hydrogen production module through the power cable to supply power for the hydrogen production module, the shell is provided with a first opening and a second opening which are respectively communicated with the first chamber and the second chamber, the communication cable is arranged in the first opening and the power cable is arranged in the second opening to separate the communication cable from the power cable.

[0012] According to some embodiments of the present application, the inner side wall of the first through hole and the outer peripheral wall of the communication cable or the inner side wall of the second through hole and the outer peripheral wall of the power cable are filled with a fire-retardant member.

[0013] According to some embodiments of the present application, the power supply control module comprises a power distribution unit, a rectifier unit and a control unit, the power distribution unit is used for connecting and modulating the power supply, the rectifier unit is used for rectifying alternating current into direct current, the control unit is connected with the power distribution unit to control the power distribution unit to modulate the power supply, the rectifier unit is connected with the power distribution unit, the control unit is connected with the hydrogen production module through the communication cable, and the rectifier unit is connected with the hydrogen production module through the power cable.

[0014] According to some embodiments of the present application, the second chamber of the shell further comprises a base shell, the control unit is arranged at a first end of the base shell, the power distribution unit is arranged at a second end of the base shell, the first end and the second end are opposite to each other, and the base shell is provided with a baffle between the control unit and the power distribution unit.

[0015] According to some embodiments of the present application, the shell is provided with an exhaust fan, the first chamber is provided with a ventilation opening, and the exhaust fan is communicated with the ventilation opening to exhaust the leaked hydrogen in the first chamber.

[0016] According to some embodiments of the present application, the partition plate is an explosion-proof plate.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 It is an internal structure schematic view of a water electrolysis hydrogen production explosion-proof system according to the present application;

[0020] Figure 2 It is a plane schematic view of a water electrolysis hydrogen production explosion-proof system according to the present application.

[0021] REFERENCE NUMERALS:

[0022] Housing 100; first chamber 110; second chamber 120; flange 130; exhaust fan 140; air inlet 150; partition 200; power supply control module 300; rectifier cabinet 310; rectifier cabinet interface 311; rectifier cabinet cable port 312; rectifier cabinet cabinet body 313; base shell 320; temperature adjustment assembly 400; air conditioner outdoor unit 410; air conditioner indoor unit 420; door group 500; first door 510; second door 520; third door 530; fourth door 540; port group 600; first port 610; second port 620; first side wall port 630; second side wall port 640. DETAILED DESCRIPTION

[0023] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are for the purpose of explanation only, and are not to be understood as limiting the present application.

[0024] In the description of the present application, it should be understood that, in relation to orientation description, for example, the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more. Greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] As Figure 1As shown, the explosion-proof system for hydrogen production by water electrolysis includes a shell 100, a partition 200, a power supply control module 300, a temperature adjusting assembly 400, a door group 500, and a port group 600. The shell 100 is provided with an air inlet 150. The partition 200 is arranged in the shell 100 and divides the shell 100 into a first chamber 110 and a second chamber 120, and the air inlet 150 is communicated with the second chamber 120. The power supply control module 300 is arranged in the shell 100 and located in the second chamber 120. The power supply control module 300 includes a rectifier cabinet 310 and a base 320. The temperature adjusting assembly 400 is arranged in the shell 100 and located in the second chamber 120 to adjust the temperature of the second chamber 120. The door group 500 is arranged in the shell 100 and includes a first door 510, a second door 520, a third door 530, and a fourth door 540. The first door 510 and the second door 520 are used to communicate the first chamber 110 with the outside, and the third door 530 and the fourth door 540 are used to communicate the second chamber 120 with the outside. The port group 600 includes a first port 610, a second port 620, and a second side wall port 640. The first port 610 and the second port 620 are respectively communicated with the first chamber 110 and the second chamber 120.

[0028] It should be noted that the first chamber 110 is provided with a hydrogen production module, and the power supply control module 300 is connected with the hydrogen production module through a cable assembly. The power supply control module 300 supplies power to the hydrogen production module and controls the operation of the hydrogen production module.

[0029] The cable assembly includes a communication cable and a power cable. The power supply control module 300 is connected with the hydrogen production module through the communication cable to transmit control instructions to control the operation of the hydrogen production module. The power supply control module 300 is connected with the hydrogen production module through the power cable to supply power to the hydrogen production module. The communication cable is arranged in the first port 610, and the power cable is arranged in the second port 620, so that the communication cable and the power cable are separated from each other, thereby reducing the interference of the power cable on the communication cable.

[0030] The inner side wall of the first port 610 and the outer peripheral wall of the communication cable, or the inner side wall of the second port 620 and the outer peripheral wall of the power cable are filled with a fire-retardant member to improve the sealing performance and fireproof performance of the second chamber 120.

[0031] The fire-retardant member can be filled with cement, rock wool, or other materials with fire-retardant properties.

[0032] In addition, the hydrogen production module includes an electrolytic cell, a gas-liquid separation device, and a purification device. The electrolytic cell is used to electrolyze water into hydrogen and oxygen. The gas-liquid separation device is used to separate the generated hydrogen and oxygen from the electrolyte respectively and pretreat the separated hydrogen into raw hydrogen. The purification device is used to deoxidize and dry the raw hydrogen to output high-purity hydrogen.

[0033] In addition, the first chamber 110 is further provided with a fire detection device and an alarm device, which are used for monitoring and alarming the first chamber 110 to improve the safety performance of the first chamber 110. The fire detection device is connected with the power supply control module 300 to provide a fire signal. The power supply control module 300 converts the fire signal into a fire alarm signal. The power supply control module 300 is connected with the alarm device to output the fire alarm signal to control the alarm device to alarm. When the fire detection device detects a fire in the first chamber 110, the power supply control module 300 outputs the fire alarm signal to the alarm device to control the alarm device to alarm the staff.

[0034] The fire detection device can be a smoke detector, a flame detector, or the like.

[0035] The alarm device can be a buzzer, a fire automatic alarm system, or the like.

[0036] It should be noted that the shell 100 is provided with a fan assembly. The fan assembly is connected with the second chamber 120 through the air inlet 150 to guide the air flow from the air inlet 150 into the second chamber 120 to increase the air pressure of the second chamber 120.

[0037] The fan assembly can be a turbine, a centrifugal fan, or an axial fan.

[0038] In addition, the second chamber 120 is provided with a pressure sensor. The pressure sensor controls the on-off of the fan assembly through the power supply control module 300, so that the air pressure of the second chamber 120 is always greater than the outdoor atmospheric pressure to isolate hydrogen and prevent explosion.

[0039] The pressure sensor is connected with the power supply control module 300 to provide a pressure signal. The power supply control module 300 can convert the pressure signal into a control signal. The power supply control module 300 is electrically connected with the fan assembly to output the control signal to control the on-off of the fan assembly. When the pressure sensor detects that the pressure of the second chamber 120 is less than a minimum pressure threshold, the power supply control module 300 outputs a first control signal and controls the fan assembly to rotate to increase the pressure of the second chamber 120. When the pressure sensor detects that the pressure of the second chamber 120 is greater than a maximum pressure threshold, the power supply control module 300 outputs a second control signal and controls the fan assembly to stop rotating.

[0040] In addition, the power supply control module 300 comprises a power distribution unit, a rectifier unit and a control unit, the power distribution unit is used for connecting and modulating the power supply, the rectifier unit is used for rectifying alternating current into direct current, the control unit is connected with the power distribution unit to control the power distribution unit to modulate the power supply, the rectifier unit is connected with the power distribution unit, the control unit is connected with the hydrogen production module through a communication cable, and the rectifier unit is connected with the hydrogen production module through a power cable.

[0041] The control unit and the power distribution unit are arranged in the base shell 320 to reduce the volume, the control unit is arranged at the first end of the base shell 320, the power distribution unit is arranged at the second end of the base shell 320, the first end and the second end are opposite to each other, and the base shell 320 is provided with a baffle between the control unit and the power distribution unit to distinguish the control unit and the power distribution unit.

[0042] The rectifier unit is arranged in the rectifier cabinet 310, and the rectifier cabinet 310 is provided with a rectifier cabinet interface 311 and a rectifier cabinet cable opening 312 to facilitate the rectifier unit to receive alternating current for processing and output.

[0043] In addition, the shell 100 is provided with a base in the second chamber 120, the base is provided with a wiring slot, the power supply control module 300 is arranged on the base, and the cable assembly is arranged in the wiring slot to facilitate the cable assembly to enter and exit and maintenance.

[0044] In addition, the partition plate 200 is arranged by using an explosion-proof plate to improve the safety performance.

[0045] Referring to Figure 1 In some embodiments of the present application, the second chamber 120 is also provided with a temperature sensor, the temperature sensor controls the operation of the temperature control assembly 400 through the power supply control module 300 to make the temperature in the second chamber 120 in a proper state.

[0046] The temperature sensor is connected with the power supply control module 300 to provide a temperature signal, the power supply control module 300 converts the temperature signal into a temperature control signal, the power supply control module 300 is connected with the temperature control assembly 400 to output the temperature control signal to control the temperature control assembly 400 to operate, when the temperature sensor detects that the indoor temperature exceeds the maximum temperature threshold, the power supply control module 300 outputs a first temperature control signal to control the temperature control assembly 400 to increase the refrigeration effect for indoor cooling; when the temperature sensor detects that the indoor temperature is less than the minimum temperature threshold, the power supply control module 300 outputs a second temperature control signal to control the temperature control assembly 400 to reduce the refrigeration effect.

[0047] The temperature adjusting assembly 400 is provided by a split air conditioner, and the split air conditioner comprises an air conditioner outdoor unit 410 and an air conditioner indoor unit 420. The air conditioner outdoor unit 410 is arranged outside the shell 100, and the air conditioner indoor unit 420 is arranged inside the shell 100 and near the rectifier cabinet 310 of the second chamber 120 to facilitate heat dissipation of the rectifier unit.

[0048] It should be noted that the temperature adjusting assembly 400 can also adjust the temperature of the second chamber 120 by using air conditioning equipment such as a cold air machine and an air conditioner fan.

[0049] Referring to Figure 1 In some embodiments of the present application, the third door 530 and the fourth door 540 are arranged on the two sides of the power supply control module 300 to facilitate operation and maintenance of the equipment by the staff.

[0050] The inner periphery of the door frame of the third door 530 and the fourth door 540 is sealed by a sealing strip to improve the sealing performance of the second chamber 120.

[0051] Referring to Figure 1 In some embodiments of the present application, the first through port 610 and the second through port 620 are arranged near the rectifier cabinet 310 and the base shell 320, respectively, to facilitate arrangement of the cable assembly.

[0052] Referring to Figure 2 In some embodiments of the present application, the shell 100 is provided with an exhaust fan 140, the first chamber 110 is provided with a ventilation port to communicate the first chamber 110 with the exhaust fan 140, the exhaust fan 140 guides the air flow to flow out of the first chamber 110 through the ventilation port to discharge the leaked hydrogen in the first chamber 110, and the first chamber 110 is further provided with a hydrogen concentration detection device. The hydrogen concentration detection device is used for monitoring and alarming the leaked hydrogen in the first chamber 110 to improve the safety performance of the first chamber 110.

[0053] The hydrogen concentration detection device is connected with the power supply control module 300 to provide a hydrogen concentration signal, the power supply control module 300 converts the hydrogen concentration signal into an exhaust fan control signal, the power supply control module 300 is connected with the exhaust fan 140 to output the exhaust fan control signal to control the operation of the exhaust fan 140. When the hydrogen concentration detection device detects that the hydrogen concentration in the first chamber 110 exceeds the maximum hydrogen concentration threshold value, the power supply control module 300 outputs a first exhaust fan control signal to the exhaust fan 140 and controls the exhaust fan 140 to rotate to discharge the leaked hydrogen. When the hydrogen concentration detection device detects that the hydrogen concentration in the first chamber 110 is less than the minimum hydrogen concentration threshold value, the power supply control module 300 outputs a second exhaust fan control signal to the exhaust fan 140 and controls the exhaust fan 140 to stop rotating.

[0054] The hydrogen concentration detection device can be a hydrogen concentration sensor.

[0055] Referring to Figure 2 In some embodiments of the present application, the shell 100 is provided with a flange 130, the hydrogen production module is provided with a gas output pipeline to output the produced hydrogen, and the external hydrogen storage device is provided with a gas inlet pipeline to receive the produced hydrogen, and the flange 130 is used to connect the gas output pipeline of the hydrogen production module and the gas inlet pipeline of the external hydrogen storage device.

[0056] Referring to Figure 2 In some embodiments of the present application, the second door 520, which communicates the first chamber 110 with the outside, is provided with a gas permeable hole to increase the ventilation of the first chamber 110.

[0057] Referring to Figure 2 In some embodiments of the present application, the shell 100 is provided with a first side wall opening 630 to communicate the first chamber 110 with the outside to facilitate the connection of the hydrogen production module in the first chamber 110 with external devices.

[0058] The present application is a water electrolysis hydrogen production explosion-proof system, which integrates the hydrogen production module and the power supply control module 300 in the shell 100 and respectively arranges them in the first chamber 110 and the second chamber 120 separated by the partition 200. The power supply control module 300 is connected with the hydrogen production module through the cable assembly to control the operation of the hydrogen production module and supply power to the hydrogen production module to produce hydrogen. The produced hydrogen is output through the gas output pipeline of the hydrogen production module.

[0059] When the user uses it, the pressure sensor in the second chamber 120 starts to operate and monitors the air pressure in the second chamber 120. The pressure sensor provides the pressure signal obtained by monitoring the air pressure to the power supply control module 300. The power supply control module 300 converts the pressure signal into a control signal and outputs it to the fan assembly to control the on-off of the fan assembly so that the air pressure in the second chamber 120 is always greater than the outdoor atmospheric pressure to isolate the hydrogen. When the pressure sensor detects that the pressure of the second chamber 120 is less than the minimum pressure threshold, the power supply control module 300 outputs the first control signal and controls the fan assembly to rotate to pressurize the second chamber 120 to isolate the hydrogen. When the pressure sensor detects that the pressure of the second chamber 120 is greater than the maximum pressure threshold, the power supply control module 300 outputs the second control signal and controls the fan assembly to stop rotating.

[0060] Meanwhile, the temperature sensor in the second chamber 120 also starts to operate and monitor the temperature of the second chamber 120, and the temperature sensor provides the monitored temperature signal to the power supply control module 300, the power supply control module 300 converts the temperature signal into a temperature control signal and outputs the temperature control signal to the temperature adjusting assembly 400 to control the refrigeration effect of the temperature adjusting assembly 400 so that the temperature in the second chamber 120 is in a proper state. When the temperature sensor detects that the indoor temperature exceeds the maximum temperature threshold, the power supply control module 300 outputs a first temperature control signal to control the temperature adjusting assembly 400 to increase the refrigeration effect for cooling the second chamber 120. When the temperature sensor detects that the temperature in the second chamber 120 is less than the minimum temperature threshold, the power supply control module 300 outputs a second temperature control signal to control the temperature adjusting assembly 400 to reduce the refrigeration effect.

[0061] In addition, the hydrogen concentration detection device of the first chamber 110 also starts to operate and monitor the hydrogen concentration of the first chamber 110, and the hydrogen concentration detection device provides the hydrogen concentration signal to the power supply control module 300, the power supply control module 300 converts the hydrogen concentration signal into an exhaust fan control signal and outputs the exhaust fan control signal to the exhaust fan 140 to control the on-off of the exhaust fan 140 so as to exhaust the leaked hydrogen in the first chamber 110. When the hydrogen concentration detection device detects that the hydrogen concentration of the first chamber 110 exceeds the maximum hydrogen concentration threshold, the power supply control module 300 outputs a first exhaust fan control signal to the exhaust fan 140 and controls the exhaust fan 140 to rotate to exhaust the leaked hydrogen. When the hydrogen concentration detection device detects that the hydrogen concentration of the first chamber 110 is less than the minimum hydrogen concentration threshold, the power supply control module 300 outputs a second exhaust fan control signal to the exhaust fan 140 and controls the exhaust fan 140 to stop rotating.

[0062] In addition, the fire detection device of the first chamber 110 also starts to operate and monitor the fire condition of the first chamber 110. When the fire detection device detects that a fire occurs in the first chamber 110, the fire detection device provides a fire signal to the power supply control module 300, and the power supply control module 300 converts the fire signal into a fire alarm signal and outputs the fire alarm signal to the alarm device to control the alarm device to alarm the staff.

[0063] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present disclosure.

[0064] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An explosion-proof system for hydrogen production by water electrolysis, characterized by, The application relates to a hydrogen production device, which comprises the following components: a shell; a partition plate arranged in the shell to divide the shell into at least a first chamber and a second chamber, the shell being further provided with an air inlet communicating with the second chamber; a hydrogen production module arranged in the shell and located in the first chamber; a power supply control module arranged in the shell and located in the second chamber, the power supply control module being connected with the hydrogen production module through a cable assembly to control the operation of the hydrogen production module and supply power to the hydrogen production module; a fan assembly arranged in the shell, the fan assembly being used to guide air flow from the air inlet into the second chamber to increase the air pressure in the second chamber; a pressure sensor arranged in the second chamber, the pressure sensor being connected with the power supply control module to provide a pressure signal, the power supply control module being capable of converting the pressure signal into a control signal, the power supply control module being electrically connected with the fan assembly to output the control signal to control the on-off of the fan assembly, when the pressure sensor detects that the pressure in the second chamber is less than a minimum pressure threshold, the power supply control module outputs a first control signal and controls the fan assembly to rotate to increase the air pressure in the second chamber, when the pressure sensor detects that the pressure in the second chamber is greater than a maximum pressure threshold, the power supply control module outputs a second control signal and controls the fan assembly to stop rotating.

2. The explosion-proof system for hydrogen production by water electrolysis according to claim 1, characterized in that: a temperature regulating assembly arranged in the second chamber, the power supply control module being connected with the temperature regulating assembly to provide a temperature control signal to control the temperature regulating assembly to regulate the temperature of the second chamber.

3. The explosion-proof system for hydrogen production by water electrolysis according to claim 1, characterized in that: the shell is provided with a base in the second chamber, the base is provided with a wiring groove, the power supply control module is arranged on the base, and the cable assembly is arranged in the wiring groove.

4. The explosion-proof system for hydrogen production by water electrolysis according to claim 1, characterized in that: the cable assembly comprises a communication cable and a power cable, the power supply control module is connected with the hydrogen production module through the communication cable to transmit a control instruction to control the operation of the hydrogen production module, the power supply control module is connected with the hydrogen production module through the power cable to supply power to the hydrogen production module, the shell is provided with a first opening and a second opening, which respectively communicate with the first chamber and the second chamber, the communication cable is arranged in the first opening, and the power cable is arranged in the second opening, so that the communication cable and the power cable are separated from each other.

5. The explosion-proof system for hydrogen production by water electrolysis according to claim 4, characterized in that: the inner side wall of the first opening and the outer peripheral wall of the communication cable or the inner side wall of the second opening and the outer peripheral wall of the power cable are filled with a fire-retardant member.

6. The explosion-proof system for hydrogen production by water electrolysis according to claim 4, characterized in that: the power supply control module comprises a power distribution unit, a rectifier unit and a control unit, the power distribution unit is used to connect and modulate a power supply, the rectifier unit is used to convert alternating current into direct current, the control unit is connected with the power distribution unit to control the power distribution unit to modulate the power supply, the rectifier unit is connected with the power distribution unit, the control unit is connected with the hydrogen production module through the communication cable, and the rectifier unit is connected with the hydrogen production module through the power cable.

7. The explosion-proof system for hydrogen production by water electrolysis according to claim 6, characterized in that: The second chamber of the shell further comprises a base shell, the control unit is arranged at a first end of the base shell, the power distribution unit is arranged at a second end of the base shell, the first end and the second end are opposite to each other, and the base shell is provided with a baffle between the control unit and the power distribution unit.

8. The explosion-proof system for hydrogen production by water electrolysis according to claim 1, characterized in that: An exhaust fan is arranged on the shell, the first chamber is provided with a ventilation opening, and the exhaust fan is communicated with the ventilation opening to exhaust the hydrogen leaked in the first chamber.

9. The explosion-proof system for hydrogen production by water electrolysis according to claim 1, characterized in that: The partition plate is an explosion-proof plate.

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