A power supply device for producing hydrogen by electrolysis of water based on IGBT technology

Abstract

The present invention relates to the field of hydrogen production energy technology, and specifically discloses a water electrolysis hydrogen production power supply device based on IGBT technology, including a parallel power supply mechanism and a power supply box for converting AC power input into DC power output, wherein the parallel power supply mechanism is evenly arranged and installed inside the power supply box, and the parallel power supply mechanism includes a rectifier module, a step-down module, a control module, a protection module and a filter module, and the power supply box includes a top box, a side plate, a door body, a bottom box and a back plate. The present invention cooperates with each other through the barrier mechanism, the heat dissipation mechanism and the dust reduction mechanism set up, so that in the process of heat dissipation and cooling inside the power supply box, the dust reduction component can intermittently dust the passing airflow, and drive the dust reduction component to vibrate continuously when cooperating with the heat dissipation and cooling, so as to guide and discharge the adsorbed dust, which not only improves the cleanliness of the system, but also optimizes the heat dissipation effect, thereby improving the overall operation efficiency of the hydrogen production power supply device.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrogen production energy, and in particular relates to a water electrolysis hydrogen production power supply device based on IGBT technology. Background Art

[0002] IGBT is a composite fully controlled, voltage-driven, power semiconductor device composed of BJT (bipolar junction transistor) and MOS (insulated gate field effect transistor). It has the characteristics of self-shutdown and can be regarded as a switch that is neither on nor off. It can improve the efficiency and quality of electricity use, and has the characteristics of high efficiency, energy saving and green environmental protection. The hydrogen production rectifier power supply using IGBT technology is mainly composed of a rectifier module and a buck module connected in series. The rectifier module includes a plurality of parallel rectifier modules, and the buck module includes a plurality of parallel buck modules. Each rectifier module and each buck module includes an input switch, an output switch and a plurality of IGBT tubes. The device can control the number of buck modules connected according to actual needs to obtain the required DC voltage. Multiple buck modules in parallel can shunt and reduce the large current borne by each IGBT tube, and cooperate with the filtering function in the circuit to improve the stability and reliability of the output voltage. Multiple rectifier modules in parallel and multiple buck modules in parallel also enable the hydrogen production power supply to continue to work when a module is damaged.

[0003] In the Chinese patent with publication number CN114726241B, a water electrolysis hydrogen production power supply device based on IGBT technology is mentioned, which relates to the field of hydrogen energy technology, and includes a series-connected rectifier module and a buck module, wherein the rectifier module includes a plurality of parallel rectifier modules, and the buck module includes a plurality of parallel buck modules; the rectifier module is used to access three-phase electricity and filter and rectify to output a DC voltage of a first amplitude; the buck module is connected to the rectifier module to reduce the amplitude of the DC voltage and output a DC voltage of a second amplitude after filtering; each of the rectifier modules and each of the buck modules includes an input switch, an output switch and a plurality of IGBT tubes. This application can improve the stability and reliability of the output voltage.

[0004] The above device relies on arc probability model and heating probability model to determine the number of rectifier modules and step-down modules to be connected. The accuracy and applicability of these models may be affected by the placement of the power supply device, which may cause unstable operation when the power supply equipment is operated in a humid, dusty and harsh environment. In addition, the above control logic is used to improve the stability and reliability of the system, but no protective measures are taken for arcs and short circuits in case of safety emergencies. Summary of the invention

[0005] The purpose of the present invention is to provide a water electrolysis hydrogen production power supply device based on IGBT technology to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A water electrolysis hydrogen production power supply device based on IGBT technology, comprising a parallel power supply mechanism and a power supply box for converting AC power input into DC power output, wherein the parallel power supply mechanism is evenly arranged and installed inside the power supply box, the parallel power supply mechanism comprises a rectifier module, a voltage reduction module, a control module, a protection module and a filter module, the power supply box comprises a top box, side panels, a door body, a bottom box and a back panel, dust reduction mechanisms are arranged on both sides of the parallel power supply mechanism, a heat dissipation mechanism is installed inside the power supply box, and a barrier mechanism is arranged below the parallel power supply mechanism; the barrier mechanism comprises a mounting frame, a sensor and a barrier curtain, the sensor The sensor is used to monitor the parallel power supply mechanism, and the blocking mechanism is used to block a single parallel power supply mechanism; the heat dissipation mechanism includes a refrigeration water tank, a circulation outlet pipe and an air cooling component, a circulation pump is provided on one side of the refrigeration water tank, and the refrigeration water tank and the circulation pump are installed inside the top box, the heat dissipation mechanism is used for air cooling and heat dissipation, and the heat dissipation mechanism is also used to cooperate with the dust reduction mechanism; the dust reduction mechanism includes a dust reduction component and a lower dust guide hopper, the dust reduction component includes a discharger, a mounting block, a lower inclined guide plate and an upper inclined guide plate, the dust reduction component is used for dust collection, the dust reduction mechanism is used for dust removal and export, and the lower inclined guide plate and the upper inclined guide plate cooperate with the air cooling component for vibration.

[0008] Preferably: a receiving plate is installed inside the top box, the refrigeration water tank and the circulation pump are installed above the receiving plate, the input end of the circulation pump is connected to the refrigeration water tank, one end of the circulation outlet pipe is connected to one side of the refrigeration water tank, the liquid outlet end of the circulation pump is connected to the circulation inlet pipe, and the circulation outlet pipe and the circulation inlet pipe are composed of a straight section, a side bending section 1 and a side bending section 2 which are connected to each other.

[0009] Preferably: the straight connection section is parallel to the ground, the side bending section 1 is connected to one end of the straight connection section, and the side bending section 2 is connected to the other end of the straight connection section, the circulating outlet pipe and the circulating inlet pipe are used to increase the coolant flow, the circulating inlet pipe and the circulating outlet pipe are connected at one end away from the refrigeration water tank through the connecting section, and the circulating inlet pipe and the circulating outlet pipe pass through the receiving plate.

[0010] Preferably: the mounting blocks are fixedly connected to the two ends above the discharger, positioning pins are inserted on both sides of the two mounting blocks, one end of the positioning pin fits the direct connection section, a terminal is provided at one end of the discharger, a spiral electrostatic tube is connected above the discharger, the mounting blocks are fixedly connected above the discharger, and the mounting blocks and the spiral electrostatic tube surround the periphery of the direct connection section.

[0011] Preferably: the lower inclined guide plates are evenly arranged below the spiral electrostatic tube and fixedly connected, the upper inclined guide plates are evenly arranged above the spiral electrostatic tube and fixedly connected, and the lower inclined guide plates and the upper inclined guide plates are staggered with each other.

[0012] Preferably: the lower dust hopper is located below the discharger, an upper dust hopper is arranged above the dust reduction assembly, filters are arranged on one side of the lower dust hopper and the upper dust hopper, the upper and lower ends of the filter are fixedly connected to the lower dust hopper and the upper dust hopper, a connecting channel is fixedly connected below the lower dust hopper, the dust reduction mechanism is evenly vertically arranged on both sides of the parallel power supply mechanism, the connecting channel is connected to another upper dust hopper, a connecting groove is provided above the bottom box, inclined guide openings are provided on both sides of the bottom box, and the connecting channel is connected to the connecting groove.

[0013] Preferably: the mounting frame is fixedly connected to the inner side of the side panel, the mounting frame is provided with evenly arranged mounting holes, the mounting holes are used to connect the two sides of the parallel power supply mechanism by bolts, the sensor is installed on the inner side of the back panel and is located at one end of the mounting frame and the parallel power supply mechanism, and the two ends of the mounting frame are fixedly connected with cross frames.

[0014] Preferably: a servo motor is installed on the outer side of the back plate, a threaded rod is installed on the output end of the servo motor, the threaded rod is rotatably connected to the inside of the cross frame, the inner side of the cross frame is slidably connected to a receiving slider, one end of the barrier curtain is connected to the top of the receiving slider, and the other end of the barrier curtain is fixedly connected to the top of the cross frame.

[0015] Preferably: the air cooling components are evenly arranged and distributed on the outer side of the side panel, the air cooling components include an outer shell, the outer shell is embedded in the outer side of the side panel, the side of the outer shell away from the side panel is provided with evenly arranged through grooves, the interior of the outer shell is fixedly connected with a bracket, a fan is installed on one side of the bracket, and a dehumidification screen is provided on the side of the bracket away from the fan.

[0016] Preferably, the side panels are located at both sides of the bottom box, the door body is located at the front end of the bottom box, the back panel is located at the rear end of the bottom box, and the top box is located at the upper ends of the side panels and the door body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The barrier mechanism, heat dissipation mechanism and dust reduction mechanism provided in the present invention cooperate with each other. During the process of heat dissipation and cooling the inside of the power supply box, the dust reduction component can intermittently absorb dust from the passing airflow, and drive the dust reduction component to vibrate continuously when cooperating with the heat dissipation and cooling, so as to guide the adsorbed dust to be discharged. This not only improves the cleanliness of the system, but also optimizes the heat dissipation effect, thereby improving the overall operating efficiency of the hydrogen production power supply device.

[0019] 2. The barrier mechanism, heat dissipation mechanism and dust reduction mechanism of the present invention cooperate with each other, so that the sensor can continuously monitor the parallel power supply mechanism. If an abnormality occurs (such as electric arc or temperature rise), it will respond quickly, and the barrier curtain will be deployed to isolate the parallel power supply mechanism to effectively prevent the spread of faults, protect the normal operation of other modules, and prevent potential safety hazards, thereby improving the operating stability of the overall system.

[0020] 3. The barrier mechanism, heat dissipation mechanism and dust reduction mechanism provided in the present invention cooperate with each other, and can enable the air flow to effectively dissipate the heat inside the power supply box through the operation of the air cooling component and the circulation pump, thereby improving the heat dissipation efficiency and ensuring the stable operation of the parallel power supply mechanism in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the three-dimensional diagrams of the present invention as a whole;

[0022] Figure 2 A front view of the present invention as a whole;

[0023] Figure 3 It is a schematic diagram of the overall internal structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the barrier mechanism of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the heat dissipation mechanism and the dust reduction mechanism of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the dust reduction mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the dust reduction assembly of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the air cooling component of the present invention.

[0029] In the figure:

[0030] 1. Power box; 11. Top box; 111. Attachment plate; 12. Side plate; 13. Door; 14. Bottom box; 141. Connection groove; 142. Inclined guide port; 15. Back plate;

[0031] 2. Parallel power supply mechanism;

[0032] 3. Barrier mechanism; 31. Mounting frame; 32. Mounting hole; 33. Sensor; 34. Horizontal frame; 35. Threaded rod; 36. Servo motor; 37. Supporting slider; 38. Barrier curtain;

[0033] 4. Heat dissipation mechanism; 41. Refrigeration water tank; 42. Circulation pump; 43. Circulation inlet pipe;

[0034] 44, circulation outlet pipe; 441, straight connection section; 442, side bending section 1; 443, side bending section 2; 444, connecting section;

[0035] 45. air cooling assembly; 451. housing; 452. through slot; 453. dehumidification screen; 454. bracket; 455. fan;

[0036] 5. Dust reduction mechanism;

[0037] 51. dust suppression assembly; 511. discharger; 512. terminal head; 513. spiral electrostatic tube; 514. mounting block; 515. positioning pin; 516. lower inclined guide plate; 517. upper inclined guide plate;

[0038] 52. Lower dust hopper; 53. Upper dust hopper; 54. Filter; 55. Connecting channel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Reference Figure 1-Figure 8 As shown, the present invention provides a water electrolysis hydrogen production power supply device based on IGBT technology, including a parallel power supply mechanism 2 and a power supply box 1 for converting AC power input into DC power output, the parallel power supply mechanism 2 is evenly arranged and installed inside the power supply box 1, the parallel power supply mechanism 2 includes a rectifier module, a step-down module, a control module, a protection module and a filter module, the power supply box 1 includes a top box 11, a side panel 12, a door body 13, a bottom box 14 and a back panel 15, dust reduction mechanisms 5 are arranged on both sides of the parallel power supply mechanism 2, a heat dissipation mechanism 4 is installed inside the power supply box 1, and a blocking mechanism 3 is arranged below the parallel power supply mechanism 2;

[0041] The blocking mechanism 3 includes a mounting frame 31, a sensor 33 and a blocking curtain 38. The sensor 33 is used to monitor the parallel power supply mechanism 2, and the blocking mechanism 3 is used to block a single parallel power supply mechanism 2.

[0042] The heat dissipation mechanism 4 includes a refrigeration water tank 41, a circulation outlet pipe 44 and an air cooling assembly 45. A circulation pump 42 is provided on one side of the refrigeration water tank 41. The refrigeration water tank 41 and the circulation pump 42 are installed inside the top box 11. The heat dissipation mechanism 4 is used for air cooling and heat dissipation. The heat dissipation mechanism 4 is also used to cooperate with the dust suppression mechanism 5.

[0043] The dust reduction mechanism 5 includes a dust reduction component 51 and a lower dust guide hopper 52. The dust reduction component 51 includes a discharger 511, a mounting block 514, a lower inclined guide plate 516 and an upper inclined guide plate 517. The dust reduction component 51 is used for collecting dust, and the dust reduction mechanism 5 is used for dust removal and export. The lower inclined guide plate 516 and the upper inclined guide plate 517 cooperate with the air cooling component 45 for vibration.

[0044] Reference Figure 2-Figure 5 In a further embodiment, a receiving plate 111 is installed inside the top box 11, a refrigeration water tank 41 and a circulation pump 42 are installed above the receiving plate 111, an input end of the circulation pump 42 is connected to the refrigeration water tank 41, one end of a circulation outlet pipe 44 is connected to one side of the refrigeration water tank 41, a liquid outlet end of the circulation pump 42 is connected to a circulation inlet pipe 43, the circulation outlet pipe 44 and the circulation inlet pipe 43 are composed of a straight section 441, a side bending section 1 442 and a side bending section 2 443 connected to each other, the straight section 441 is parallel to the ground, the side bending section 1 442 is connected to one end of the straight section 441, and the side bending section 2 443 is connected to the other end of the straight section 441, the circulation outlet pipe 44 and the circulation inlet pipe 43 are used to increase the flow of cooling liquid, the ends of the circulation inlet pipe 43 and the circulation outlet pipe 44 away from the refrigeration water tank 41 are connected by a connecting section 444, and the circulation inlet pipe 43 and the circulation outlet pipe 44 run through the receiving plate 111.

[0045] In this embodiment, a refrigerator is provided inside the cooling water tank 41 for continuously cooling the circulating coolant; the circulating inlet pipe 43 and the circulating outlet pipe 44 are both heat-conducting aluminum pipes;

[0046] When the parallel power supply mechanism 2 is used inside the power supply box 1 to start hydrogen production, the external control device will operate the circulation pump 42, the sensor 33 and the air cooling component 45, and let the discharger 511 operate intermittently. The operation of the circulation pump 42 will allow the coolant in the refrigeration water tank 41 to enter from one end of the circulation inlet pipe 43 and enter the interior of the connecting section 444 after being guided by the connecting section 444, and then flow back to the interior of the refrigeration water tank 41. During this process, the operation of the fan 455 will allow the external airflow to enter the interior of the shell 451 through the through groove 452 and be The dehumidification mesh plate 453 performs dehumidification, and then the airflow will pass through the dust reduction component 51 and the periphery of the direct connection section 441. Part of the airflow will pass through the filter 54 directly into the interior of the power supply box 1, and the other part will be guided from the connecting channel 55 and discharged to the outside from the inclined guide port 142. At the same time, the airflow entering the interior of the power supply box 1 will also be discharged from the inclined guide port 142 after accumulation. When part of the airflow passes through the dust reduction component 51 and the periphery of the direct connection section 441, it will be cooled by the coolant in the direct connection section 441 and then enter the interior of the power supply box 1, thereby cooling the parallel power supply mechanism 2.

[0047] Reference Figure 5-Figure 7In a further embodiment, the dust reduction mechanism 5 is arranged outside the direct connection section 441, the mounting block 514 is fixedly connected to the two ends above the discharger 511, and positioning pins 515 are inserted on both sides of the two mounting blocks 514, one end of the positioning pin 515 fits the direct connection section 441, a terminal 512 is arranged at one end of the discharger 511, a spiral electrostatic tube 513 is connected above the discharger 511, the mounting block 514 is fixedly connected above the discharger 511, and the mounting block 514 and the spiral electrostatic tube 513 surround the periphery of the direct connection section 441.

[0048] The mounting block 514 is composed of a circular ring and a column fixedly connected, wherein the circular ring can be separated into half rings on the left and right, and then surround the outer periphery of the direct connection section 441. The positioning pin 515 is threadedly connected, and a ball is provided at one end of the positioning pin 515 that fits the direct connection section 441, so that after the discharger 511 and the mounting block 514 are connected to the direct connection section 441 through the positioning pin 515, the discharger 511 can be swung to cooperate with the air cooling component 45.

[0049] The lower inclined guide plate 516 is evenly arranged below the spiral electrostatic tube 513 and fixedly connected, and the upper inclined guide plate 517 is evenly arranged above the spiral electrostatic tube 513 and fixedly connected. The lower inclined guide plate 516 and the upper inclined guide plate 517 are staggered with each other.

[0050] The lower inclined guide plate 516 is inclined in the opposite direction to the upper inclined guide plate 517, and the lower inclined guide plate 516 and the upper inclined guide plate 517 are staggered up and down, so that turbulence can be generated when the airflow passes through, and then the discharger 511 starts to swing; the discharger 511 is an electrostatic generator, so that electric charges can be injected into the interior of the spiral electrostatic tube 513 to generate irregularly distributed positive and negative charges inside it, and because the spiral electrostatic tube 513 is spirally wrapped around the periphery of the direct connection section 441, dust can be absorbed from the airflow passing through its periphery.

[0051] The lower dust hopper 52 is located below the discharger 511, and an upper dust hopper 53 is arranged above the dust reduction component 51. A filter 54 is arranged on one side of the lower dust hopper 52 and the upper dust hopper 53. The upper and lower ends of the filter 54 are fixedly connected to the lower dust hopper 52 and the upper dust hopper 53. A connecting channel 55 is fixedly connected to the lower part of the lower dust hopper 52. The dust reduction mechanism 5 is evenly arranged vertically on both sides of the parallel power supply mechanism 2. The connecting channel 55 is connected to another upper dust hopper 53. A connecting groove 141 is opened above the bottom box 14, and inclined guide openings 142 are opened on both sides of the bottom box 14. The connecting channel 55 is connected to the connecting groove 141.

[0052] In this embodiment, there are multiple dust reduction components 51, lower dust guide hoppers 52 and upper dust guide hoppers 53, which are arranged vertically. The lower part of each lower dust guide hopper 52 is connected to the upper part of another upper dust guide hopper 53 through a connecting channel 55, until the lower dust guide hopper 52 at the bottom is connected to the connecting groove 141 through the connecting channel 55, thereby guiding the dust;

[0053] When part of the airflow passes through the dust suppression assembly 51 and the outer periphery of the direct connection section 441, it will be blocked by the lower inclined guide plate 516 and the upper inclined guide plate 517 so that part of the airflow can be introduced into the interior of the connection channel 55 again. At the same time, since the positioning pin 515 of the mounting block 514 is not completely fixed to the direct connection section 441, it is allowed to rotate and shake around the point where the mounting block 514 is penetrated by the direct connection section 441. Therefore, the discharger 511 can be shaken as a whole to beat the filter screen 54 so that the dust on one side of the filter screen 54 can fall into the interior of the connection channel 55.

[0054] The control device connects the terminal block 512 via the line so that when the discharger 511 operates intermittently, the spiral electrostatic tube 513 will generate irregular positive and negative charges, so that the surface of the spiral electrostatic tube 513 can absorb the dust contained inside when the airflow passes through, and as the discharger 511 always swings with the operation of the air cooling component 45, the dust absorbed on the surface of the spiral electrostatic tube 513 can be vibrated and dropped into the interior of the connecting channel 55, so that multiple dust removal can be performed during the cooling process.

[0055] Reference Figure 2-Figure 4 In a further embodiment, a mounting frame 31 is fixedly connected to the inner side of the side panel 12, and the mounting frame 31 is provided with evenly arranged mounting holes 32, and the mounting holes 32 are used to connect the two sides of the parallel power supply mechanism 2 by bolts, and the sensor 33 is installed on the inner side of the back plate 15 and is located at one end of the mounting frame 31 and the parallel power supply mechanism 2, and the two ends of the mounting frame 31 are fixedly connected with a cross frame 34.

[0056] The mounting frame 31 and the cross frame 34 form a square frame, and the receiving slider 37 is slidably connected to the inner side of the square frame; the barrier curtain 38 is an arc-proof and high-temperature resistant cloth.

[0057] A servo motor 36 is installed on the outer side of the back plate 15, and a threaded rod 35 is installed on the output end of the servo motor 36. The threaded rod 35 is rotatably connected to the inside of the cross frame 34. A receiving slider 37 is slidably connected to the inner side of the cross frame 34. One end of the barrier curtain 38 is connected to the top of the receiving slider 37, and the other end of the barrier curtain 38 is fixedly connected to the top of the cross frame 34.

[0058] In this embodiment, when an arc or a sudden temperature rise occurs in the parallel power supply mechanism 2, the sensor 33 will detect it and feed back to the external control device, and cause the two servo motors 36 near the sensor 33, that is, the servo motors 36 located at the upper and lower ends of the parallel power supply mechanism 2 to operate, thereby allowing the receiving slider 37 to slide with the blocking curtain 38, and allowing the blocking curtain 38 to unfold at the upper and lower ends of the parallel power supply mechanism 2 to block the parallel power supply mechanism 2, thereby improving the protection and avoiding affecting other parallel power supply mechanisms 2.

[0059] Reference Figure 8 In a further embodiment, the air cooling component 45 is evenly arranged and distributed on the outer side of the side plate 12. The air cooling component 45 includes a shell 451, which is embedded in the outer side of the side plate 12. The shell 451 is provided with evenly arranged through grooves 452 on the side away from the side plate 12. The inside of the shell 451 is fixedly connected with a bracket 454, a fan 455 is installed on one side of the bracket 454, and a dehumidification screen 453 is provided on the side of the bracket 454 away from the fan 455.

[0060] In this embodiment, the air cooling component 45 is distributed between two adjacent dust reduction mechanisms 5, and is mainly used to introduce external airflow; the dehumidification mesh plate 453 is an activated carbon mesh in the prior art, which is used to adsorb water vapor. At the same time, there are multiple mesh holes at the bottom of the outer shell 451 for discharging condensed water droplets.

[0061] Reference Figure 1-Figure 2 In a further embodiment, the side panels 12 are located on both sides of the bottom box 14, the door body 13 is located at the front end of the bottom box 14, the back panel 15 is located at the rear end of the bottom box 14, and the top box 11 is located at the upper ends of the side panels 12 and the door body 13.

[0062] In this embodiment, the power supply box 1 is a box for placing a hydrogen production power supply in the prior art, and a control device is provided at the door 13 to operate the parallel power supply mechanism 2 to start supplying power for hydrogen production.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water electrolysis hydrogen production power supply device based on IGBT technology, comprising a parallel power supply mechanism (2) for converting AC power input into DC power output and a power supply box (1), characterized in that: The parallel power supply mechanism (2) is evenly arranged and installed inside the power supply box (1); the parallel power supply mechanism (2) comprises a rectifier module, a voltage reduction module, a control module, a protection module and a filter module; the power supply box (1) comprises a top box (11), a side plate (12), a door body (13), a bottom box (14) and a back plate (15); dust reduction mechanisms (5) are arranged on both sides of the parallel power supply mechanism (2); a heat dissipation mechanism (4) is installed inside the power supply box (1); and a blocking mechanism (3) is arranged below the parallel power supply mechanism (2); The blocking mechanism (3) comprises a mounting frame (31), a sensor (33) and a blocking curtain (38); the sensor (33) is used to monitor the parallel power supply mechanism (2); and the blocking mechanism (3) is used to block a single parallel power supply mechanism (2); The heat dissipation mechanism (4) comprises a refrigeration water tank (41), a circulation outlet pipe (44) and an air cooling component (45); a circulation pump (42) is provided on one side of the refrigeration water tank (41); the refrigeration water tank (41) and the circulation pump (42) are installed inside the top box (11); the heat dissipation mechanism (4) is used for air cooling and heat dissipation; the heat dissipation mechanism (4) is also used to cooperate with the dust suppression mechanism (5); The dust reduction mechanism (5) comprises a dust reduction component (51) and a lower dust guide hopper (52); the dust reduction component (51) comprises a discharger (511), a mounting block (514), a lower inclined guide plate (516) and an upper inclined guide plate (517); the dust reduction component (51) is used for collecting dust, the dust reduction mechanism (5) is used for removing and exporting dust, and the lower inclined guide plate (516) and the upper inclined guide plate (517) cooperate with the air cooling component (45) for vibration.

2. According to the IGBT technology-based water electrolysis hydrogen production power supply device of claim 1, it is characterized by: A receiving plate (111) is installed inside the top box (11), the refrigeration water tank (41) and the circulation pump (42) are installed above the receiving plate (111), the input end of the circulation pump (42) is connected to the refrigeration water tank (41), one end of the circulation outlet pipe (44) is connected to one side of the refrigeration water tank (41), the liquid outlet end of the circulation pump (42) is connected to the circulation inlet pipe (43), and the circulation outlet pipe (44) and the circulation inlet pipe (43) are composed of a straight section (441), a side bending section 1 (442) and a side bending section 2 (443) connected to each other.

3. According to claim 2, a water electrolysis hydrogen production power supply device based on IGBT technology is characterized in that: The straight connection section (441) is parallel to the ground, the side bending section 1 (442) is connected to one end of the straight connection section (441), and the side bending section 2 (443) is connected to the other end of the straight connection section (441). The circulation outlet pipe (44) and the circulation inlet pipe (43) are used to increase the flow of cooling liquid. The ends of the circulation inlet pipe (43) and the circulation outlet pipe (44) away from the refrigeration water tank (41) are connected through the connecting section (444), and the circulation inlet pipe (43) and the circulation outlet pipe (44) pass through the receiving plate (111).

4. According to the IGBT technology-based water electrolysis hydrogen production power supply device of claim 1, it is characterized by: The mounting blocks (514) are fixedly connected to the two ends above the discharger (511); positioning pins (515) are inserted on both sides of the two mounting blocks (514); one end of the positioning pin (515) fits the direct connection section (441); one end of the discharger (511) is provided with a terminal head (512); a spiral electrostatic tube (513) is connected above the discharger (511); the mounting blocks (514) are fixedly connected to the top of the discharger (511); and the mounting blocks (514) and the spiral electrostatic tube (513) surround the periphery of the direct connection section (441).

5. The power supply device for producing hydrogen from water by electrolysis based on IGBT technology according to claim 1, characterized in that: The lower inclined guide plate (516) is evenly arranged below the spiral electrostatic tube (513) and is fixedly connected, and the upper inclined guide plate (517) is evenly arranged above the spiral electrostatic tube (513) and is fixedly connected, and the lower inclined guide plate (516) and the upper inclined guide plate (517) are staggered with each other.

6. The power supply device for producing hydrogen from water by electrolysis based on IGBT technology according to claim 1, characterized in that: The lower dust guide hopper (52) is located below the discharger (511); an upper dust guide hopper (53) is arranged above the dust reduction assembly (51); a filter screen (54) is arranged on one side of the lower dust guide hopper (52) and the upper dust guide hopper (53); the upper and lower ends of the filter screen (54) are fixedly connected to the lower dust guide hopper (52) and the upper dust guide hopper (53); a connecting channel (55) is fixedly connected below the lower dust guide hopper (52); the dust reduction mechanism (5) is evenly arranged vertically on both sides of the parallel power supply mechanism (2); the connecting channel (55) is connected to another upper dust guide hopper (53); a connecting groove (141) is provided above the bottom box (14); inclined guide openings (142) are provided on both sides of the bottom box (14); and the connecting channel (55) is connected to the connecting groove (141).

7. The power supply device for producing hydrogen from water by electrolysis based on IGBT technology according to claim 1, characterized in that: The mounting frame (31) is fixedly connected to the inner side of the side plate (12); the mounting frame (31) is provided with mounting holes (32) that are evenly arranged and distributed; the mounting holes (32) are used to connect the two sides of the parallel power supply mechanism (2) by means of bolts; the sensor (33) is mounted on the inner side of the back plate (15) and is located at one end of the mounting frame (31) and the parallel power supply mechanism (2); and the two ends of the mounting frame (31) are fixedly connected to a cross frame (34).

8. The water electrolysis hydrogen production power supply device based on IGBT technology according to claim 1, characterized in that: A servo motor (36) is installed on the outer side of the back plate (15), and a threaded rod (35) is installed on the output end of the servo motor (36). The threaded rod (35) is rotatably connected to the inside of the cross frame (34), and a receiving slider (37) is slidably connected to the inner side of the cross frame (34). One end of the barrier curtain (38) is connected to the upper side of the receiving slider (37), and the other end of the barrier curtain (38) is fixedly connected to the upper side of the cross frame (34).

9. The water electrolysis hydrogen production power supply device based on IGBT technology according to claim 1, characterized in that: The air cooling component (45) is evenly arranged and distributed on the outer side of the side plate (12), and the air cooling component (45) includes a shell (451), and the shell (451) is embedded in the outer side of the side plate (12). The side of the shell (451) away from the side plate (12) is provided with evenly arranged and distributed through grooves (452), the inside of the shell (451) is fixedly connected with a bracket (454), a fan (455) is installed on one side of the bracket (454), and a dehumidification screen (453) is provided on the side of the bracket (454) away from the fan (455).

10. The water electrolysis hydrogen production power supply device based on IGBT technology according to claim 1, characterized in that: The side panels (12) are located on both sides of the bottom box (14), the door body (13) is located at the front end of the bottom box (14), the back panel (15) is located at the rear end of the bottom box (14), and the top box (11) is located at the upper ends of the side panels (12) and the door body (13).

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