Alkaline liquor circulating heating device of water electrolysis hydrogen production device

Abstract

The application relates to the technical field of hydrogen production by electrolysis of water, and discloses a lye circulating heating device of a hydrogen production device by electrolysis of water, which comprises a lye heating tank and further comprises: a vortex assembly installed on the top of the inner wall of the lye heating tank, a stirring assembly installed at the bottom of the vortex assembly, a bottom-sinking stirring assembly movably installed at the bottom of the stirring assembly, and a reciprocating assembly installed at the top of the vortex assembly. In the application, the lye to be heated is injected into the lye heating tank through a liquid inlet pipe, and high-speed liquid flow directly impacts vortex fan blades, so that the vortex fan blades rotate on the top of a liquid equalizing plate. On one hand, the vortex fan blades drive the rotating shaft tube of the stirring assembly and the stirring blades to synchronously rotate, and continuously stir the lye in the middle of the tank; on the other hand, the vortex fan blades drive the top reciprocating screw rod to rotate in the shaft sleeve, and through threaded transmission, drive the threaded sleeve to drive the mounting frame to reciprocatingly move up and down along the through groove, so that the electric heating rod synchronously rises and falls in the lye, and the lye at different heights is uniformly heated.

Description

Technical Field

[0001] This invention relates to the field of water electrolysis hydrogen production technology, specifically to an alkaline solution circulation heating device for water electrolysis hydrogen production apparatus. Background Technology

[0002] Hydrogen and oxygen produced by the electrolysis reaction in the electrolytic cell are discharged with alkaline electrolyte and enter the hydrogen-alkali separator and oxygen-alkali separator respectively to complete gas-liquid separation. The two separated alkaline solutions are collected in a collection pipe and then enter the alkaline solution circulation pump through a connecting pipe. The circulation pump provides the circulation driving force, and after pressurization, it is sent to the alkaline solution heater through the return pipe for circulation heating.

[0003] However, most existing alkali heating devices use a fixed heating structure, where the alkali relies solely on its own flow to exchange heat. The flow rate at the bottom of the alkali heating tank is slow, which can easily lead to sedimentation and low heat exchange efficiency. Furthermore, the overall internal temperature difference of the alkali is large, making it difficult to quickly reach the heating temperature required by the process. At the same time, most of the alkali vapor generated during the heating process is directly discharged and condensed, resulting in rapid heat loss from the alkali heating tank. This not only increases additional heating energy consumption but also causes unnecessary loss of alkali. Summary of the Invention

[0004] The purpose of this invention is to provide an alkaline solution circulation heating device for an electrolytic water hydrogen production apparatus, which realizes synchronous stirring of alkaline solution at different heights in the tank, ensuring uniform overall temperature of the alkaline solution during the heating process. At the same time, it can stir the alkaline solution that has settled to the bottom, preventing the alkaline solution components from depositing and affecting the heating efficiency. It can also recover and utilize the heat carried by alkaline vapor, reducing energy consumption and alkaline solution loss.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus, comprising an alkaline solution heating tank, and further comprising: A vortex assembly is installed on the top of the inner wall of the alkali heating tank. A stirring assembly is installed at the bottom of the vortex assembly. A bottom-sinking agitator is movably installed at the bottom of the stirring assembly. A reciprocating assembly is installed on the top of the vortex assembly. Electric heating components are installed at equal intervals on the inner wall of the alkali heating tank. An interval top-pressing assembly is installed on the top of the alkali heating tank. A circulating liquid guiding assembly is installed on the top of the inner wall of the alkali heating tank. The stirring assembly is used to agitate the alkali solution in the inner wall of the alkali solution heating tank; the bottom-sinking agitator is used to agitate the alkali solution at the bottom of the inner wall of the alkali solution heating tank; the reciprocating assembly is used to drive the electric heating assembly up and down reciprocally; the electric heating assembly is used to circulate and heat the alkali solution in the inner wall of the alkali solution heating tank; the interval pressure relief assembly is used to intermittently release the alkali vapor at the top of the inner wall of the alkali solution heating tank; and the circulating liquid guiding assembly is used to circulate and introduce the alkali vapor at the top of the inner wall of the alkali solution heating tank.

[0006] Preferably, the top of the alkali heating tank is connected to and fixed with an inlet pipe, the bottom of the alkali heating tank is connected to and fixed with an outlet temperature control valve, the top of the alkali heating tank is fixedly installed with a sealing end cap, and the top of the inner wall of the alkali heating tank away from the inlet pipe is connected to and fixed with a circulating liquid pipe.

[0007] Preferably, the vortex assembly includes a liquid equalization plate fixedly installed on the inner wall of the alkali heating tank near the top. The liquid equalization plate has a liquid distribution groove that is equally spaced through the top circumference of the liquid equalization plate, and a through groove that is equally spaced through the edge of the top circumference of the liquid equalization plate. A vortex fan blade is rotatably installed on the top of the liquid equalization plate, and the water inlet end of the liquid inlet pipe located in the inner wall of the alkali heating tank is arranged opposite to the vortex fan blade.

[0008] Preferably, the agitation assembly includes a rotating shaft tube, and agitation blades are fixedly installed at equal intervals around the rotating shaft tube. The top end of the rotating shaft tube is fixedly connected to the bottom of the vortex fan blades.

[0009] Preferably, the bottom-sinking agitator includes a liquid-distributing plate, and a connecting shaft is fixedly installed in the middle of the inner wall of the liquid-distributing plate. The top end of the connecting shaft extends movably through the inner wall of the rotating shaft tube.

[0010] Preferably, the reciprocating assembly includes a reciprocating lead screw fixedly installed on the top of the vortex fan blade. The bottom end of the reciprocating lead screw is provided with three sets of fixing brackets. The three sets of fixing brackets are integrally formed with bushings at their intersecting ends. The bottom end of the reciprocating lead screw is rotatably connected to the bushings. The end of the fixing bracket away from the bushings is fixedly connected to the inner wall of the alkaline solution heating tank.

[0011] Preferably, the electric heating assembly includes a mounting bracket, and threaded sleeves are fixedly installed at the intersecting ends of the three sets of mounting brackets. The threaded sleeves are threadedly assembled with the reciprocating lead screw. The bottom end of the mounting bracket extends movably through the corresponding through groove to the bottom of the inner wall of the alkali heating tank. An electric heating rod is fixedly installed in the middle of the inner side of the mounting bracket. An electric connecting wire is electrically connected to the top of the electric heating rod. The electric connecting wire extends through to the top of the alkali heating tank. The bottom ends of the three sets of mounting brackets are respectively fixedly connected to the top circumference of the liquid separator.

[0012] Preferably, the interval pressing assembly includes a synchronous disc and an intermittent disc. The synchronous disc is fixedly installed on the top of the reciprocating screw and rotatably installed on the top of the alkali heating tank. A positioning block and a guide block are fixedly installed on the top circumferential edge and the top of the synchronous disc, respectively. The intermittent disc is rotatably installed on one side of the top of the alkali heating tank. Positioning grooves and guide grooves are equally spaced on the outer circumference of the intermittent disc. A pressure block is fixedly installed on one side of the bottom of the intermittent disc. The guide block and the guide groove are located in the same plane.

[0013] Preferably, the circulating liquid guiding assembly includes a sealing sleeve, which is connected to and fixed to one side of the top of the alkaline heating tank. A rod is movably inserted through the top of the sealing sleeve, a plug is fixedly installed at the bottom end of the rod, a protrusion is fixedly installed at the top end of the rod, and a top spring is fixedly installed between the protrusion and the top of the sealing sleeve.

[0014] Preferably, the protrusion and the pressure block are located at the bottom of the intermittent disk and are distributed opposite to each other, and one end of the top of the circulating fluid pipe is connected to the sealing sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the alkali solution to be heated is injected into the alkali heating tank through the inlet pipe. The high-speed liquid flow directly impacts the vortex fan blades, causing them to rotate on the top of the equalization plate. On one hand, the vortex fan blades drive the rotating shaft tube and stirring blades of the stirring assembly to rotate synchronously, continuously stirring the alkali solution in the middle of the tank. On the other hand, the vortex fan blades drive the top reciprocating screw to rotate in the bushing, which drives the threaded sleeve to move the mounting bracket up and down along the through groove via the threaded transmission, so that the electric heating rod rises and falls synchronously in the alkali solution, uniformly heating the alkali solution at different heights.

[0016] In this invention, the lifting and lowering of the mounting frame simultaneously drives the distribution plate to move up and down, continuously agitating the alkaline solution deposited at the bottom of the tank. Combined with the stirring blades agitating the alkaline solution in the middle, this achieves full-tank flow and mixing of the alkaline solution, avoiding bottom sedimentation and stratification, and improving heat exchange uniformity and heating efficiency.

[0017] In this invention, the reciprocating screw rotates continuously and drives the synchronous disc to rotate. When the guide block rotates into the guide groove of the intermittent disc, it drives the intermittent disc to rotate, and the positioning block is engaged in the corresponding positioning groove to complete one intermittent transmission. The pressure block at the bottom of the intermittent disc intermittently presses down on the protrusion. The protrusion overcomes the elastic force of the top spring and drives the insertion rod and the plug to move down, opening the sealing sleeve passage. The hot alkaline vapor accumulated at the top of the tank is reintroduced into the top of the alkaline heating tank through the sealing sleeve and the circulating liquid pipe, and mixed with the alkaline liquid stirred by the vortex fan blades. The waste heat of the alkaline vapor is recovered to supplement the heat inside the tank, which not only reduces heat waste and lowers operating energy consumption, but also avoids the direct discharge of alkaline vapor and the loss of alkaline liquid. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the alkaline solution heating tank in this invention; Figure 3 This is a schematic diagram of the bottom-sinking actuation component and the eddy current component in this invention; Figure 4 This is a schematic diagram of the intermediate pressure assembly structure of the present invention; Figure 5 This is a schematic diagram of the reciprocating component structure in this invention; Figure 6This is a schematic diagram of the electric heating component and the reciprocating component in this invention; Figure 7 This is a schematic diagram of the structure of the intermediate pressure assembly and the circulating liquid guiding assembly of the present invention; Figure 8 for Figure 4 A magnified view of the structure at point A in the middle; Figure 9 for Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0019] In the diagram: 100, Alkali heating tank; 200, Vortex assembly; 300, Agitator assembly; 400, Bottom-sinking agitator assembly; 500, Reciprocating assembly; 600, Electric heating assembly; 700, Interval top-pressure assembly; 800, Circulating liquid guiding assembly; 11, Inlet pipe; 12, Outlet temperature control valve; 13, Circulating liquid pipe; 14, Sealing end cap; 21, Equalizing plate; 22, Distributor tank; 23, Through channel; 24, Vortex fan blade; 31, Rotating shaft tube; 32, Agitator. Leaf; 41. Separating plate; 42. Connecting shaft; 51. Reciprocating screw; 52. Fixing bracket; 521. Bushing; 61. Mounting bracket; 62. Threaded sleeve; 63. Electric heating rod; 631. Electrical connection wire; 71. Synchronizing disc; 72. Intermittent disc; 711. Positioning block; 712. Guide block; 721. Positioning groove; 722. Guide groove; 723. Pressure block; 81. Sealing sleeve; 82. Insert rod; 821. Plug; 822. Protrusion; 823. Top spring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: This embodiment provides an alkaline solution circulation heating device for an electrolytic water hydrogen production apparatus, such as... Figures 1-9 As shown, the system includes an alkaline solution heating tank 100, and also includes: A vortex assembly 200 is installed on the top of the inner wall of the alkali heating tank 100. An agitator 300 is installed at the bottom of the vortex assembly 200. A bottom-sinking agitator 400 is movably installed at the bottom of the agitator 300. A reciprocating assembly 500 is installed on the top of the vortex assembly 200. Electric heating components 600 are installed at equal intervals on the inner wall of the alkali heating tank 100. An interval top-pressing assembly 700 is installed on the top of the alkali heating tank 100. A circulating liquid guiding assembly 800 is installed on the top of the inner wall of the alkali heating tank 100.

[0022] The alkaline heating tank 100 is connected to and fixed with an inlet pipe 11 at the top of its periphery, and with an outlet temperature control valve 12 at the bottom of its bottom. A sealing end cap 14 is fixedly installed on the top of the alkaline heating tank 100, and a circulating liquid pipe 13 is connected to and fixed on the top of the inner wall of the alkaline heating tank 100 away from the inlet pipe 11.

[0023] This design is described in the appendix. Figures 1-2 The alkali solution to be heated is pumped into the alkali heating tank 100 through the inlet pipe 11. The alkali solution is circulated and heated by the electric heating rods 63 evenly arranged in the alkali heating tank 100. When the overall temperature of the alkali solution reaches the process setting requirements, the outlet temperature control valve 12 at the bottom of the alkali heating tank 100 senses that the temperature has reached the standard and automatically opens. The heated alkali solution is discharged from the tank and sent to the subsequent electrolysis process.

[0024] The vortex assembly 200 includes a liquid equalization plate 21 fixedly installed on the inner wall of the alkali heating tank 100 near the top. Liquid equalization plates 21 have liquid distribution grooves 22 that are evenly spaced through the top circumference of the liquid equalization plate 21. Liquid equalization plates 21 have through grooves 23 that are evenly spaced through the top circumference edge of the liquid equalization plate 21. A vortex fan blade 24 is rotatably installed on the top of the liquid equalization plate 21. The water inlet end of the liquid inlet pipe 11 located in the inner wall of the alkali heating tank 100 is arranged opposite to the vortex fan blade 24.

[0025] This design is described in the appendix. Figures 2-4 The alkali solution to be heated is injected into the alkali heating tank 100 through the inlet pipe 11. The high-speed inflow of alkali solution directly impacts the vortex fan blade 24, causing the vortex fan blade 24 to rotate on the top of the liquid distribution plate 21. The rotation of the vortex fan blade 24 can disperse the alkali solution introduced at the inlet pipe 11 on the top of the liquid distribution plate 21 and distribute it evenly into the alkali heating tank 100 through the liquid distribution tank 22.

[0026] The stirring assembly 300 includes a rotating shaft tube 31, with stirring blades 32 fixedly installed at equal intervals around the rotating shaft tube 31. The top end of the rotating shaft tube 31 is fixedly connected to the bottom of the vortex fan blade 24. The bottom-sinking agitator assembly 400 includes a liquid separating plate 41, with a connecting shaft 42 fixedly installed in the middle of the inner wall of the liquid separating plate 41. The top end of the connecting shaft 42 movably penetrates into the inner wall of the rotating shaft tube 31.

[0027] This design is described in the appendix. Figure 3 , Figure 4 The vortex fan blade 24 rotates, causing the rotating shaft tube 31 of the stirring assembly 300 to rotate synchronously. The rotating shaft tube 31 drives the outer stirring blades 32 to continuously stir the alkaline solution in the middle of the alkaline solution heating tank 100.

[0028] The reciprocating assembly 500 includes a reciprocating screw 51 fixedly installed on the top of the vortex fan blade 24. Three sets of fixing brackets 52 are provided at the bottom of the reciprocating screw 51. A bushing 521 is integrally formed at the intersection of the three sets of fixing brackets 52. The bottom of the reciprocating screw 51 is rotatably connected to the bushing 521. The end of the fixing bracket 52 away from the bushing 521 is fixedly connected to the inner wall of the alkali heating tank 100. The electric heating assembly 600 includes a mounting bracket 61. A threaded sleeve 62 is fixedly installed at the intersection of the three sets of mounting brackets 61. The threaded sleeve 62 is threadedly assembled with the reciprocating screw 51. The bottom of the mounting bracket 61 extends movably through the corresponding through groove 23 to the bottom of the inner wall of the alkali heating tank 100. An electric heating rod 63 is fixedly installed in the middle of the inner side of the mounting bracket 61. An electric connecting wire 631 is electrically connected to the top of the electric heating rod 63. The electric connecting wire 631 extends through to the top of the alkali heating tank 100. The bottom of the three sets of mounting brackets 61 is fixedly connected to the top circumference of the liquid distribution plate 41.

[0029] This design is described in the appendix. Figure 4 The vortex fan blade 24 rotates synchronously, driving the reciprocating screw 51 at the top to rotate within the bushing 521. The reciprocating screw 51 drives the threaded sleeve 62 to reciprocate up and down along its shaft via threaded transmission, thereby driving the mounting frame 61 to reciprocate up and down along the through groove 23, and driving the electric heating rod 63 to move up and down in the alkaline solution, uniformly heating the alkaline solution at different heights. When the mounting frame 61 moves up and down, it drives the bottom distribution plate 41 to move up and down synchronously. The distribution plate 41 continuously agitates the alkaline solution deposited at the bottom of the alkaline solution heating tank 100, and together with the stirring blade 32 agitates the alkaline solution in the middle, it achieves the flow and mixing of the alkaline solution in the whole tank, avoids the alkaline solution at the bottom from settling and stratifying, and effectively improves the heat exchange uniformity and heating efficiency.

[0030] Example 2: Based on Example 1, this example provides an alkaline solution circulation heating device for an electrolytic water hydrogen production apparatus, such as... Figures 3-9 As shown, it includes: The stirring assembly 300 is used to stir the alkali solution in the inner wall of the alkali solution heating tank 100; the bottom-sinking agitator 400 is used to stir the alkali solution at the bottom of the inner wall of the alkali solution heating tank 100; the reciprocating assembly 500 is used to drive the electric heating assembly 600 up and down reciprocally; the electric heating assembly 600 is used to circulate and heat the alkali solution in the inner wall of the alkali solution heating tank 100; the interval pressure relief assembly 700 is used to intermittently release the alkali vapor at the top of the inner wall of the alkali solution heating tank 100; and the circulating liquid guiding assembly 800 is used to circulate and introduce the alkali vapor at the top of the inner wall of the alkali solution heating tank 100.

[0031] The interval pressure assembly 700 includes a synchronous disc 71 and an intermittent disc 72. The synchronous disc 71 is fixedly installed on the top of the reciprocating screw 51 and is rotatably installed on the top of the alkali heating tank 100. A positioning block 711 and a guide block 712 are fixedly installed on the top circumferential edge and the top of the synchronous disc 71, respectively. The intermittent disc 72 is rotatably installed on one side of the top of the alkali heating tank 100. Positioning grooves 721 and guide grooves 722 are equally spaced on the outer circumference of the intermittent disc 72. A pressure block 723 is fixedly installed on one side of the bottom of the intermittent disc 72. The guide block 712 and the guide groove 722 are located in the same plane.

[0032] This design is described in the appendix. Figures 5-7 As the reciprocating screw 51 continues to rotate, it synchronously drives the top synchronous disc 71 to rotate. When the guide block 712 of the synchronous disc 71 rotates into the guide groove 722 of the intermittent disc 72, it drives the intermittent disc 72 to rotate on the top of the alkaline heating tank 100, and the positioning block 711 rotates into the corresponding positioning groove 721 to complete the intermittent transmission.

[0033] The circulating liquid guiding assembly 800 includes a sealing sleeve 81, which is connected to and fixed to the top side of the alkaline heating tank 100. A rod 82 is movably inserted through the top of the sealing sleeve 81. A plug 821 is fixedly installed at the bottom of the rod 82. A protrusion 822 is fixedly installed at the top of the rod 82. A top spring 823 is fixedly installed between the protrusion 822 and the top of the sealing sleeve 81. The protrusion 822 and the pressure block 723 are respectively located at the bottom of the intermittent plate 72 and are distributed opposite to each other. One end of the top of the circulating liquid pipe 13 is connected to the sealing sleeve 81.

[0034] This design is described in the appendix. Figure 9 During the rotation of the intermittent disk 72, the bottom pressure block 723 intermittently presses down on the protrusion 822. The protrusion 822 overcomes the elastic force of the top spring 823, causing the insertion rod 82 and the plug 821 to move down, opening the passage of the sealing sleeve 81. The hot alkaline vapor accumulated at the top of the alkaline heating tank 100 is discharged into the circulating liquid pipe 13 through the sealing sleeve 81. It is then reintroduced into the top of the inner wall of the alkaline heating tank 100 through the circulating liquid pipe 13, where it mixes with the alkaline solution stirred by the vortex fan blade 24. The heat carried by the alkaline vapor is recovered to replenish the heat of the alkaline solution in the tank, which reduces heat waste, lowers the overall operating energy consumption of the device, and avoids the loss of alkaline solution caused by the direct discharge of alkaline vapor.

[0035] Working principle: When the alkaline solution circulating heating device of this water electrolysis hydrogen production device is in use, the alkaline solution to be heated is pumped into the alkaline solution heating tank 100 through the inlet pipe 11. The high-speed input of alkaline solution impacts the vortex fan blade 24 at the water outlet end of the inlet pipe 11, directly driving the vortex fan blade 24 to rotate on the top of the liquid equalization plate 21. The impact force of the liquid flow serves as the power source for the entire mechanism, eliminating the need for additional dedicated power components, simplifying the device structure and reducing additional energy consumption.

[0036] After the vortex fan blade 24 rotates, it simultaneously drives two mechanisms: on the one hand, the vortex fan blade 24 drives the rotating shaft tube 31 at the bottom and the stirring blade 32 to rotate synchronously. The stirring blade 32 continuously stirs the alkaline solution in the middle of the alkaline solution heating tank 100, promoting convective heat transfer of the alkaline solution; on the other hand, the vortex fan blade 24 drives the reciprocating screw 51 at the top to rotate stably in the bushing 521 at the end of the fixed frame 52. The reciprocating screw 51 drives the threaded sleeve 62 and the mounting frame 61 fixed to the threaded sleeve 62 to move up and down along the reciprocating screw 51 through the threaded transmission. The mounting frame 61 drives the electric heating rod 63, which is energized on the inside, to move up and down synchronously in the alkaline solution, circulating and heating the alkaline solution at different heights in the tank, avoiding temperature stratification caused by a fixed heating area.

[0037] When the mounting frame 61 moves up and down, it simultaneously drives the bottom-fixed distribution plate 41 to move up and down along the tank body. The distribution plate 41 continuously stirs the alkaline solution at the bottom of the alkaline solution heating tank 100, breaking up the alkaline components deposited at the bottom of the tank. Combined with the stirring action of the middle stirring blade 32, it achieves full-range flow and mixing of alkaline solution from top to bottom in the tank, avoiding the deposition and stratification of alkaline components, ensuring the overall temperature of the alkaline solution is uniform, and preventing material accumulation that would reduce heating efficiency.

[0038] During the continuous rotation of the reciprocating screw 51, the synchronous disk 71 fixed at the top is driven to rotate synchronously. When the synchronous disk 71 rotates, it drives the guide block 712 on it to gradually rotate into the guide groove 722 of the intermittent disk 72, causing the intermittent disk 72 to rotate at the top of the alkali heating tank 100. Then, the positioning block 711 of the synchronous disk 71 rotates into the corresponding positioning groove 721 to complete one intermittent transmission. During the rotation of the intermittent disk 72, the pressure block 723 at the bottom presses down on the protrusion 822 of the circulating liquid guiding component 800. The protrusion 822 overcomes the elastic force of the top spring 823 and drives the insertion rod 82 and the plug 821 to move down, opening the passage of the sealing sleeve 81. The heated alkali vapor accumulated at the top of the alkali heating tank 100 is released. The vapor is discharged into the circulating liquid pipe 13 through the sealing sleeve 81, and then reintroduced into the top of the inner wall of the alkali heating tank 100 through the circulating liquid pipe 13. The heat carried by the alkali vapor is released into the alkali liquid in the tank to complete the heat recovery. After the alkali vapor condenses, it is also reintegrated into the alkali liquid in the tank, which reduces the overall energy consumption of the device, reduces the loss of alkali liquid, and avoids the direct discharge of alkali vapor. When the pressure block 723 rotates with the intermittent plate 72 and disengages from the protrusion 822, the top spring 823 pushes the insertion rod 82 and the plug 821 to move upward and reset, re-sealing the passage of the sealing sleeve 81. The pressure in the alkali heating tank 100 gradually rises, waiting for the next intermittent liquid introduction. While realizing the recycling of alkali vapor, the pressure in the tank is kept stable.

[0039] Once the overall temperature of the alkali solution reaches the process setting requirements, the outlet temperature control valve 12 at the bottom of the alkali solution heating tank 100 senses that the temperature has reached the standard and automatically opens. The heated alkali solution is discharged from the tank and sent to the subsequent electrolysis process, completing one cycle of alkali solution heating.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus, comprising an alkaline solution heating tank (100), a vortex assembly (200), and a stirring assembly (300), characterized in that, A vortex assembly (200) is installed on the top of the inner wall of the alkali heating tank (100). An agitator (300) is installed at the bottom of the vortex assembly (200). A bottom-sinking agitator (400) is movably installed at the bottom of the agitator (300). A reciprocating assembly (500) is installed on the top of the vortex assembly (200). Electric heating assemblies (600) are installed at equal intervals on the inner wall of the alkali heating tank (100). An interval top-pressing assembly (700) is installed on the top of the alkali heating tank (100). A circulating liquid guiding assembly (800) is installed on the top of the inner wall of the alkali heating tank (100). The stirring assembly (300) is used to stir the alkali solution in the inner wall of the alkali heating tank (100), the bottom-sinking agitator assembly (400) is used to stir the alkali solution at the bottom of the inner wall of the alkali heating tank (100), the reciprocating assembly (500) is used to drive the electric heating assembly (600) up and down reciprocally, the electric heating assembly (600) is used to circulate and heat the alkali solution in the inner wall of the alkali heating tank (100), the interval top pressure assembly (700) is used to intermittently release the alkali vapor at the top of the inner wall of the alkali heating tank (100), and the circulating liquid guiding assembly (800) is used to circulate and introduce the alkali vapor at the top of the inner wall of the alkali heating tank (100).

2. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 1, characterized in that: The top of the alkali heating tank (100) is connected to and fixed with an inlet pipe (11), the bottom of the alkali heating tank (100) is connected to and fixed with an outlet temperature control valve (12), the top of the alkali heating tank (100) is fixedly installed with a sealing end cap (14), and the top of the inner wall of the alkali heating tank (100) away from the inlet pipe (11) is connected to and fixed with a circulating liquid pipe (13).

3. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 2, characterized in that: The vortex assembly (200) includes a liquid equalization plate (21) fixedly installed on the inner wall of the alkali heating tank (100) near the top. The liquid equalization plate (21) has a liquid distribution groove (22) that is evenly spaced through the top circumference. The liquid equalization plate (21) has a through groove (23) that is evenly spaced through the top circumference edge. A vortex fan blade (24) is rotatably installed on the top of the liquid equalization plate (21). The water inlet end of the liquid inlet pipe (11) located in the inner wall of the alkali heating tank (100) is arranged opposite to the vortex fan blade (24).

4. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 3, characterized in that: The agitation assembly (300) includes a rotating shaft tube (31), and agitation blades (32) are fixedly installed at equal intervals around the rotating shaft tube (31). The top end of the rotating shaft tube (31) is fixedly connected to the bottom of the vortex fan blade (24).

5. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 4, characterized in that: The bottom-sinking actuation assembly (400) includes a liquid distribution plate (41), and a connecting shaft (42) is fixedly installed in the middle of the inner wall of the liquid distribution plate (41). The top end of the connecting shaft (42) extends movably through the inner wall of the rotating shaft tube (31).

6. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 5, characterized in that: The reciprocating assembly (500) includes a reciprocating screw (51) fixedly installed on the top of the vortex fan blade (24). The bottom end of the reciprocating screw (51) is provided with three sets of fixing brackets (52). The three sets of fixing brackets (52) are integrally formed with bushings (521) at their intersecting ends. The bottom end of the reciprocating screw (51) is rotatably connected to the bushings (521). The end of the fixing bracket (52) away from the bushings (521) is fixedly connected to the inner wall of the alkaline heating tank (100).

7. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 6, characterized in that: The electric heating assembly (600) includes a mounting bracket (61). Threaded sleeves (62) are fixedly installed at the intersecting ends of the three sets of mounting brackets (61). The threaded sleeves (62) are threadedly assembled with the reciprocating screw (51). The bottom end of the mounting bracket (61) extends through the corresponding through groove (23) to the bottom of the inner wall of the alkali heating tank (100). An electric heating rod (63) is fixedly installed in the middle of the inner side of the mounting bracket (61). An electric connecting wire (631) is electrically connected to the top of the electric heating rod (63). The electric connecting wire (631) extends through to the top of the alkali heating tank (100). The bottom ends of the three sets of mounting brackets (61) are respectively fixedly connected to the top circumference of the liquid separator (41).

8. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 7, characterized in that: The interval top pressure assembly (700) includes a synchronous disk (71) and an intermittent disk (72). The synchronous disk (71) is fixedly installed on the top of the reciprocating screw (51) and rotatably installed on the top of the alkali heating tank (100). A positioning block (711) and a guide block (712) are fixedly installed on the top circumferential edge and the top of the synchronous disk (71), respectively. The intermittent disk (72) is rotatably installed on one side of the top of the alkali heating tank (100). A positioning groove (721) and a guide groove (722) are equally spaced on the outer circumference of the intermittent disk (72). A pressure block (723) is fixedly installed on one side of the bottom of the intermittent disk (72). The guide block (712) and the guide groove (722) are located in the same plane.

9. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 8, characterized in that: The circulating liquid guiding assembly (800) includes a sealing sleeve (81), which is connected to and fixed to the top side of the alkaline heating tank (100). A rod (82) is movably inserted through the top of the sealing sleeve (81). A plug (821) is fixedly installed at the bottom of the rod (82). A protrusion (822) is fixedly installed at the top of the rod (82). A top spring (823) is fixedly installed between the protrusion (822) and the top of the sealing sleeve (81).

10. The alkaline solution circulating heating device for an electrolytic water hydrogen production apparatus according to claim 9, characterized in that: The protrusion (822) and the pressure block (723) are respectively located at the bottom of the intermittent disk (72) and are distributed opposite to each other. One end of the top of the circulating liquid pipe (13) is connected to the sealing sleeve (81).

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