Hydrogen production device

Abstract

The utility model provides a hydrogen production device. The hydrogen production device comprises a bottom plate, a frame and a bearing piece, the bearing piece is fixed to the frame, the bearing piece and the bottom plate are arranged in a spaced mode, and the bearing piece bears the alkali liquor box. The supporting part and the bottom plate are arranged at intervals, so that the situation that the supporting structure is installed on the bottom plate and occupies too much bottom space of the alkali liquor box can be avoided, the space below the alkali liquor box can be used for arranging hydrogen production parts, mutual interference of installation and maintenance of the parts is avoided, and the containing space is fully and reasonably utilized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydrogen production by water electrolysis, and particularly relates to a hydrogen production device. BACKGROUND

[0002] In an AEM (anion exchange membrane) water electrolysis device, an alkali tank is an important component responsible for storing and supplying alkaline electrolyte used in the electrolysis process. In the related art, in order to enable liquid to be smoothly discharged from the alkali tank, the alkali tank is usually arranged to be elevated. However, since the bearing structure of the alkali tank is usually arranged on the bottom plate, a large space is occupied at the bottom, resulting in unreasonable structural layout. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the application provide a hydrogen production device, which can improve the technical problem of unreasonable structural layout of the hydrogen production device.

[0004] Embodiments of the application provide a hydrogen production device, which comprises:

[0005] a bottom plate;

[0006] a frame surrounding the bottom plate and forming a containing space with the bottom plate;

[0007] an electrolytic tank located in the containing space and fixed to the bottom plate;

[0008] an alkali tank located in the containing space, connected to the electrolytic tank and arranged to be spaced apart from the bottom plate;

[0009] a bearing member fixed to the frame and arranged to be spaced apart from the bottom plate, the bearing member bearing the alkali tank.

[0010] In some embodiments, the frame comprises a support beam and two oppositely arranged side plates, the two side plates are connected to the bottom plate and protrude from the same side of the bottom plate, the support beam is connected between the two side plates, one end of the bearing member is connected to the support beam, and the other end bears the alkali tank.

[0011] In some embodiments, the bearing member comprises an extension and a bearing part, the extension is connected to the support beam and extends towards the bottom plate, and the bearing part protrudes from the extension, and a side of the bearing part away from the bottom plate bears the alkali tank.

[0012] In some embodiments, the hydrogen production device comprises two bearing members, the two bearing members are located on two sides of the alkali tank respectively, and the two bearing members cooperate to bear the alkali tank.

[0013] In some embodiments, the supporting member further comprises a limiting part connected to the supporting part and located on the same side of the supporting part as the extending part, the limiting part is located on the side of the supporting part away from the caustic soda tank, and two limiting parts are oppositely arranged and located on two sides of the caustic soda tank.

[0014] In some embodiments, the hydrogen production device further comprises an electrical cabin connected to the side of the electrolytic cell away from the bottom plate, the electrical cabin is spaced apart from the caustic soda tank, and the support beam supports the electrical cabin.

[0015] In some embodiments, the hydrogen production device further comprises a side beam, the side beam and the support beam are respectively supported on two sides of the electrical cabin, each support beam comprises a bottom support plate and a side support plate connected to each other, the side support plate is connected between two side plates, the bottom support plate is connected to the side support plate and protrudes towards the side beam, and the side away from the bottom plate of the bottom support plate supports the electrical cabin.

[0016] In some embodiments, the extending part further comprises an extending arm connected to the supporting part and a fixing block connected to the end of the extending arm away from the bottom plate and protruding away from the caustic soda tank, and the fixing block is fixed to the side of the bottom support plate facing the bottom plate.

[0017] In some embodiments, the frame further comprises two limiting baffle plates spaced apart, each limiting baffle plate is connected between two side plates, and the caustic soda tank and the electrical cabin are arranged between the two limiting baffle plates.

[0018] In some embodiments, the hydrogen production device further comprises a water replenishment valve and a water drainage valve, the water replenishment valve and the water drainage valve are arranged between the caustic soda tank and the bottom plate and fixed to the bottom plate, and the caustic soda tank is connected to the water replenishment valve and the water drainage valve.

[0019] The beneficial effects of the embodiments of the present application are as follows:

[0020] In the embodiments of the present application, the hydrogen production device comprises a bottom plate, a frame and a supporting member, the supporting member is fixed to the frame and spaced apart from the bottom plate, and the supporting member supports the caustic soda tank. By spacing apart the supporting member and the bottom plate, the installation of the supporting structure on the bottom plate can avoid occupying too much space at the bottom of the caustic soda tank, so that more space below the caustic soda tank can be used to arrange hydrogen production parts, and the space is not crowded to avoid mutual interference of installation and maintenance of each part, so as to fully and reasonably utilize the accommodation space and improve the rationality of the structure layout. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0022] Figure 1 is a structural schematic diagram of a hydrogen production device provided by an embodiment of the present application;

[0023] Figure 2 is a structural schematic diagram of a hydrogen production device provided by an embodiment of the present application;

[0024] Figure 3 is a structural schematic diagram of a supporting member provided by an embodiment of the present application;

[0025] Figure 4 is a structural schematic diagram of a hydrogen production device provided by an embodiment of the present application;

[0026] Figure 5 is a side view of a hydrogen production device provided by an embodiment of the present application.

[0027] Reference signs:

[0028] 100, hydrogen production device;

[0029] 10, bottom plate;

[0030] 20, frame; 21, support beam; 211, side support plate; 212, bottom support plate; 22, side plate; 23, edge beam; 24, limiting baffle;

[0031] 30, electrolytic cell;

[0032] 40, lye tank;

[0033] 50, supporting member; 51, extension; 52, supporting part; 53, limiting part; 511, extension arm; 512, fixing block;

[0034] 60, electrical cabin;

[0035] 70, water replenishment valve; 71, water drainage valve; 72, temperature sensor base; 73, liquid return valve; 74, filter; 75, oxygen exhaust joint; 76, water inlet joint through plate; 77, water drainage joint through plate; 78, back pressure assembly; 79, gas-liquid separation member; DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application. In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the present application, and is not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower of the device in the actual use or working state, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the contour of the device.

[0037] Please refer to Figures 1-2 The present application provides a hydrogen production device 100, which comprises a bottom plate 10 and a frame 20, the frame 20 is arranged around the bottom plate 10 and forms a containing space with the bottom plate 10, the hydrogen production device 100 further comprises an electrolytic cell 30, an alkali tank 40 and a supporting member 50, the electrolytic cell 30 is located in the containing space and is fixed to the bottom plate 10, the alkali tank 40 is located in the containing space, the alkali tank 40 is connected to the electrolytic cell 30 and is arranged spaced apart from the bottom plate 10. The supporting member 50 is fixed to the frame 20 and is arranged spaced apart from the bottom plate 10, and the supporting member 50 supports the alkali tank 40.

[0038] The alkali tank 40 is used to store and provide the alkaline electrolyte required for electrolysis of the electrolytic cell 30. Compared with arranging the alkali tank 40 on the bottom plate 10, by elevating the alkali tank 40, the oxygen containing water can be separated from the liquid under the action of gravity in the alkali tank 40, and the residual water can be reduced. However, the supporting structure of the existing alkali tank 40 is usually fixed to the bottom plate 10, which occupies a lot of space at the bottom, resulting in unreasonable structure layout.

[0039] In the present application, the supporting member 50 is fixed to the frame 20 and is arranged spaced apart from the bottom plate 10, and the supporting member 50 supports the alkali tank 40. By arranging the supporting member 50 spaced apart from the bottom plate 10, the supporting structure of the alkali tank 40 does not occupy too much space at the bottom, and more space below the alkali tank 40 can be used to arrange other hydrogen production components such as an alkali circulation pump, a water replenishing valve 70, a water discharge valve 71, a liquid return valve 73 and the like, so as to avoid the space crowded and the mutual interference of the installation and maintenance of the components, to fully and reasonably utilize the containing space and improve the rationality of the structure layout.

[0040] In some examples, the alkali solution tank 40 can be a vertical structure, the height of the alkali solution tank 40 is greater than the width, and an internal gas-liquid separation baffle is arranged, so that the water-containing oxygen in the alkali solution tank 40 can be separated by gravity separation and baffle separation principle, so that the alkali solution tank 40 has the functions of alkali solution storage and oxygen gas-liquid separation, has a simple structure, does not need water filtering materials, has low use cost and small maintenance cost.

[0041] In some embodiments, the frame 20 includes a support beam 21 and two oppositely arranged side plates 22, the two side plates 22 are spaced apart and connected to the bottom plate 10, and protrude from the same side of the bottom plate 10, the support beam 21 is connected between the two side plates 22, and the supporting member 50 is connected to one end of the support beam 21 and supports the alkali solution tank 40 at the other end.

[0042] Specifically, the length direction of the bottom plate 10 is the first direction, the width direction of the bottom plate 10 is the second direction, the height direction of the side plate 22 is the third direction, the side plate 22 is arranged at both ends of the bottom plate 10, the support beam 21 extends along the first direction, the supporting member 50 is perpendicular to the support beam 21 and extends along the third direction, and the supporting member 50 extends partially in the second direction.

[0043] Please refer to Figure 3 , Figure 3 is a structural schematic diagram of the supporting member 50 provided by the embodiments of the present application. In some embodiments, the supporting member 50 includes an extension part 51 and a supporting part 52, the extension part 51 is connected to the support beam 21 and extends towards the bottom plate 10, and the supporting part 52 protrudes from the extension part 51 and supports the alkali solution tank 40 on the side away from the bottom plate 10.

[0044] Specifically, the alkali solution tank 40 includes a first bottom surface, the first bottom surface includes a first long side and a first short side connected to the first long side, the alkali solution tank 40 further includes a first end surface and a first side surface, the first side surface is connected to the first long side, the first end surface is connected to the first short side, the first side surface faces the electrical cabin 60, the supporting part 52 is supported on the first bottom surface, and the extension part 51 abuts against the first side surface.

[0045] In some embodiments, the hydrogen production device 100 includes two supporting members 50, the two supporting members 50 are respectively located on both sides of the alkali solution tank 40, and the two supporting members 50 cooperate to support the alkali solution tank 40.

[0046] Specifically, the supporting parts 52 of the two supporting members 50 abut against both ends of the first bottom surface of the alkali solution tank 40, the extension parts 51 of the two supporting members 50 respectively abut against the two first side surfaces of the alkali solution tank 40, and the two supporting members 50 can cooperate from both sides to increase the supporting effect on the alkali solution tank 40.

[0047] In some embodiments, the bracket 50 further comprises a limiting part 53 connected to the bracket part 52 and located on the same side of the bracket part 52 as the extension part 51, the limiting part 53 is located on the side of the bracket part 52 away from the lye tank 40, and the two limiting parts 53 are oppositely arranged and located on both sides of the lye tank 40.

[0048] Specifically, the limiting part 53 comprises a bottom edge and a side edge connected to each other, the bracket part 52 is connected to the bottom edge, the extension part 51 is connected to the side edge, the bracket part 52 is used to support the first bottom surface, the extension part 51 abuts against the first side surface, and the limiting part 53 abuts against the first end surface, and the two brackets 50 can be cooperated from both sides to limit the lye tank 40.

[0049] Please refer to Figures 4-5 , Figure 4 is a structural schematic diagram of a hydrogen production device 100 provided by an embodiment of the present application, Figure 5 is a side view of a hydrogen production device 100 provided by an embodiment of the present application. In some embodiments, the hydrogen production device 100 further comprises an electrical cabin 60 connected to the side of the electrolytic cell 30 away from the bottom plate 10, the electrical cabin 60 is spaced apart from the lye tank 40, and the support beam 21 supports the electrical cabin 60.

[0050] It can be understood that in the water electrolysis system, the electrolytic cell 30 needs stable power supply, and the electrical cabin 60 usually contains control systems (such as PLC, frequency converter, power module, relay, etc.), which are responsible for monitoring and adjusting the current, voltage, temperature and other parameters in the water electrolysis process, to ensure that the electrolysis reaction proceeds stably. The electrical cabin 60 can concentrate key equipment together, which is convenient for management and control. The power management module in the electrical cabin 60 is responsible for converting external power into current and voltage suitable for the electrolysis reaction, to ensure the stability of power supply in the electrolysis process. The electrical cabin 60 can also contain a power monitoring system for real-time monitoring of current, voltage and other parameters, and adjusting as needed.

[0051] In some embodiments, the electrical cabin 60 is arranged in extension along a first direction, and the electrical cabin 60 is connected to one side plate 22 at both ends, the electrical cabin 60 has a horizontal structure, and the length of the electrical cabin 60 is greater than the height, so that there is enough space to arrange the electrolytic cell 30 at the bottom of the electrical cabin 60, and the electrical cabin 60 and the lye tank 40 can be flush away from the bottom plate.

[0052] In some embodiments, the hydrogen production device 100 further comprises a side beam 23, the side beam 23 and the support beam 21 are respectively supported on two sides of the electrical cabin 60, each of the support beam 21 comprises a bottom support plate 212 and a side support plate 211 connected to each other, the side support plate 211 is connected between two side plates 22, the bottom support plate 212 is connected to the side support plate 211 and protrudes towards the side beam 23, and the bottom support plate 212 supports the electrical cabin 60 away from one side of the bottom plate 10.

[0053] Specifically, the support beam 21 further comprises a flange, and two ends of each side support plate 211 are respectively connected to a flange, the flanges are arranged in a direction parallel to the side plate 22, and the flanges are used to fix the two ends of the support beam 21 to the two side plates 22 respectively.

[0054] Specifically, the side beam 23 is connected between the two side plates 22 and extends in a first direction, the side beam 23 and the support beam 21 cooperate to support the electrical cabin 60, the electrical cabin 60 comprises a second bottom surface and a second side surface, the second bottom surface comprises two second long sides arranged oppositely, the second side surface is connected to the second long sides, the bottom support plate 212 is supported on the second bottom surface, and the side support plate 211 abuts against the second side surface.

[0055] In some embodiments, the extension 51 further comprises an extension arm 511 and a fixing block 512, the extension arm 511 is connected to the supporting portion 52, the fixing block 512 is connected to one end of the extension arm 511 away from the bottom plate 10 and protrudes away from the caustic tank 40, and the fixing block 512 is fixed to one side of the bottom support plate 212 facing the bottom plate 10. The fixing block 512 can increase the stability of the connection and improve the structural connection effect.

[0056] In some embodiments, at least one opening is arranged on the fixing block 512, and another opening is arranged on the bottom support plate 212 in correspondence, and a nut is arranged through the bottom support plate 212 and the fixing block 512 to screw the fixing block 512 and the bottom support plate 212.

[0057] In some embodiments, the fixing block 512 can also protrude away from the bottom plate 10 and be fixed to one side of the side support plate 211 away from the second side surface.

[0058] In some embodiments, the frame 20 further comprises two spacing limiting baffle plates 24, each of the limiting baffle plates 24 is connected between two side plates 22, and the caustic tank 40 and the electrical cabin 60 are arranged between the two limiting baffle plates 24.

[0059] Specifically, from the external front frame 20, one of the limiting baffles 24 is arranged on the side of the alkali tank 40 away from the electrical cabin 60, and the other limiting baffle 24 is arranged on the side of the electrical cabin 60 away from the alkali tank 40. The limiting baffles 24 and the support beams 21 extend in the first direction, and the electrolytic tank 30 is arranged below the electrical cabin 60 and extends in the first direction. In this application, the electrical cabin 60 and the alkali tank 40 are isolated, and the system is arranged in layers from top to bottom and in zones from left to right, and is reasonably compact in space utilization. The internal various functional assemblies are independently installed and maintained, and do not interfere with each other, and high-efficiency electrolytic water hydrogen production is realized under the premise of safety, stability and automation.

[0060] In some embodiments, the hydrogen production device 100 further comprises a water supply valve 70 and a drain valve 71, which are arranged between the alkali tank 40 and the bottom plate 10 and are fixed to the bottom plate 10. The water supply valve 70 and the drain valve 71 are arranged protruding towards the alkali tank 40, and the alkali tank 40 is connected to the water supply valve 70 and the drain valve 71. In this application, since the support 50 is not arranged on the bottom plate 10, there is more space at the bottom to arrange structures such as the water supply valve 70 or the drain valve 71, and the space limitation is smaller.

[0061] In some embodiments, the hydrogen production device 100 further comprises a temperature sensor base 72, a liquid return valve 73 and a filter 74. The temperature sensor base 72 has a first passage and a second passage arranged therein. A first temperature sensor is arranged on the first passage, and a second temperature sensor is arranged on the second passage. The first temperature sensor and the second temperature sensor can respectively detect the temperature of the alkali inlet and outlet of the electrolytic tank 30. The hydrogen production device 100 further comprises a temperature sensor base 72, a liquid return valve 73 and a filter 74. The temperature sensor base 72, the liquid return valve 73 and the filter 74 are arranged on the bottom plate 10.

[0062] In some embodiments, the hydrogen production device 100 further comprises a back pressure assembly 78 and a gas-liquid separation member 79. The back pressure assembly 78 is installed between the side plate 22 and the alkali tank 40, and the gas-liquid separation member 79 is installed between the side plate 22 and the electrolytic tank 30 and arranged in front of the electrolytic tank 30. The back pressure assembly 78 integrates the back pressure valve, the pressure relief valve and the safety valve on one valve block, which is compact in structure and convenient to install, and can realize the process control and pressure safety function of hydrogen production pressure.

[0063] The hydrogen production device 100 further comprises a plate-penetrating oxygen exhaust connector 75, a plate-penetrating water inlet connector 76 and a plate-penetrating drain connector 77, which are all arranged on the side plate 22.

[0064] Specifically, the alkali outlet of the alkali tank 40, the alkali circulating pump, the radiator, the first passage of the temperature sensor base 72, the filter 74, the alkali inlet of the electrolytic tank 30, the alkali outlet of the electrolytic tank 30, the second passage of the temperature sensor base 72, and the alkali inlet of the alkali tank 40 are connected in series by pipes to form an alkali circulating pipeline.

[0065] In some examples, the drain port of the alkali tank 40, the drain valve 71, and the through-plate drain joint 77 are connected in series by pipes to form a drain pipeline.

[0066] In some examples, the through-plate water inlet joint 76, the water replenishment valve 70, and the water replenishment port of the alkali tank 40 are connected in series by pipes to form a water replenishment pipeline.

[0067] In some examples, the hydrogen outlet of the electrolytic tank 30, the wet hydrogen inlet of the gas-liquid separation piece 79, the liquid discharge port of the gas-liquid separation piece 79, the liquid return valve 73, and the liquid return port of the alkali tank 40 are connected by a hydrogen cooling coil to form a hydrogen gas-liquid separation and liquid return pipeline.

[0068] In some examples, the dry hydrogen outlet of the gas-liquid separation piece 79 and the hydrogen inlet of the back pressure assembly 78 are connected by a pipe to form a hydrogen output pipeline.

[0069] In some examples, the oxygen outlet of the alkali tank 40 and the through-plate oxygen exhaust joint 75 are connected by a pipe to form an oxygen exhaust pipeline.

[0070] The above detailed the embodiments of the present application, and the principles and implementation manners of the present application are described by applying specific examples; the above embodiment descriptions are only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the present application; in summary, the content of the present description should not be understood as a limitation of the present application.

Claims

1. A hydrogen production apparatus, characterized in that, include: Base plate; The frame is set up around the base plate and forms a receiving space with the base plate; An electrolytic cell is located within the accommodating space and fixed to the base plate; An alkali solution tank is located within the containment space. The alkali solution tank is connected to the electrolytic cell and is spaced apart from the bottom plate. The support member is fixed to the frame and spaced apart from the base plate, and supports the alkali tank.

2. The hydrogen production apparatus according to claim 1, characterized in that, The frame includes a support beam and two oppositely arranged side plates. The two side plates are connected to the base plate at intervals and protrude from the same side of the base plate. The support beam is connected between the two side plates. One end of the support member is connected to the support beam, and the other end supports the alkali tank.

3. The hydrogen production apparatus according to claim 2, characterized in that, The support member includes an extension and a support portion. The extension is connected to the support beam and extends toward the base plate. The support portion protrudes from the extension and supports the alkali tank on the side of the support portion away from the base plate.

4. The hydrogen production apparatus according to claim 3, characterized in that, The hydrogen production device includes two support components, which are located on both sides of the alkali tank and cooperate to support the alkali tank.

5. The hydrogen production apparatus according to claim 4, characterized in that, The support also includes a limiting part, which is connected to the support and located on the same side of the support as the extension. The limiting part is located on the side of the support away from the alkali tank. The two limiting parts are arranged opposite to each other and are located on both sides of the alkali tank.

6. The hydrogen production apparatus according to claim 3, characterized in that, The hydrogen production device also includes an electrical compartment, which is connected to the side of the electrolyzer away from the bottom plate. The electrical compartment is spaced apart from the alkali tank, and the support beam supports the electrical compartment.

7. The hydrogen production apparatus according to claim 6, characterized in that, The hydrogen production device also includes side beams, which, along with the support beams, support the electrical compartment on both sides. Each support beam includes a bottom support plate and a side support plate connected to each other. The side support plate is connected between two side plates, and the bottom support plate is connected to the side support plate and protrudes toward the side beam. The side of the bottom support plate facing away from the bottom plate supports the electrical compartment.

8. The hydrogen production apparatus according to claim 7, characterized in that, The extension also includes an extension arm and a fixing block. The extension arm is connected to the support portion, and the fixing block is connected to the end of the extension arm away from the bottom plate and protrudes away from the alkali tank. The fixing block is fixed to the side of the bottom support plate facing the bottom plate.

9. The hydrogen production apparatus according to claim 6, characterized in that, The frame also includes two spaced-apart limiting baffles, each of which is connected between the two side plates, and the alkali tank and electrical compartment are disposed between the two limiting baffles.

10. The hydrogen production apparatus according to any one of claims 1-9, characterized in that, The hydrogen production device also includes a water supply valve and a drain valve, which are located between the alkali tank and the base plate and are fixed to the base plate. The alkali tank is connected to the water supply valve and the drain valve.

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