Liquid metal coolant hydrogen production device with circulation device

Abstract

The present invention relates to the field of hydrogen production, and specifically provides a liquid metal coolant hydrogen production device with a circulation device, aiming to solve the problem of non-smooth circulation of liquid metal coolant in the prior art. To this end, the liquid metal coolant hydrogen production device with a circulation device of the present invention includes a reaction tank, the reaction tank is used to hold the liquid metal coolant, a heat source and a water injection device are provided in the reaction tank, the heat source is used to maintain the liquid metal coolant at a certain temperature, the water injection device is used to inject water into the liquid metal coolant, and a circulation device is also provided in the reaction tank, the circulation device is used to drive the liquid metal coolant to circulate. The present invention drives the liquid metal coolant to circulate through the circulation device, extracts the cooled liquid metal coolant, and at the same time transports the liquid metal coolant heated by the heat source to the reaction position, thereby improving the hydrogen production efficiency.

Description

Technical Field

[0001] The invention relates to the field of hydrogen production, and specifically provides a liquid metal coolant hydrogen production device with a circulation device. Background Art

[0002] At present, most industrial water electrolysis hydrogen production equipment adopts alkaline water electrolyzers, but the liquid pipes of water electrolysis hydrogen production equipment are prone to corrosion and leakage. At present, there is no good method to solve the problem of electrochemical corrosion of water electrolysis hydrogen production equipment. To this end, Chinese patent application CN114057160A discloses a system and method for producing hydrogen in a liquid heavy metal coolant device. The liquid metal coolant refers to a cooling medium composed of low-melting point alkali metals and low-melting point alloys. Liquid lead-bismuth alloy can be selected. Water is injected into the liquid heavy metal coolant. After the water contacts the liquid heavy metal coolant, it evaporates quickly to generate water vapor. The water vapor reacts with the liquid heavy metal coolant at high temperature and is decomposed into hydrogen and dissolved oxygen ions, avoiding the problem of pipeline corrosion. However, this method still has problems and shortcomings.

[0003] The water injection pipe of this application injects water from the side. Since the density of the liquid metal coolant is much greater than that of water, the liquid metal coolant can easily flow back into the water injection pipe. Since the water injection pipe extends from the side, if the liquid metal coolant flows along the water injection pipe to the outside of the container, it will solidify when it is cooled, thereby blocking the water injection pipe and causing the reaction to not proceed normally. In this application, water is sprayed upward to promote the circulation of the liquid metal coolant. However, the liquid metal coolant cools down after meeting water. According to the principle of thermal expansion and contraction, the density of the cooled liquid metal increases. To promote its circulation, part of the driving force of the water will be offset, which is not conducive to the circulation of the liquid metal coolant. When the concentration of oxygen ions increases, the reaction will be inhibited. Although an electrode oxygen pump device is used to make the oxygen ions form oxygen at the anode of the oxygen pump device and then extract the oxygen, the hydrogen production efficiency of this method still needs to be improved.

[0004] Accordingly, the art needs a new liquid metal coolant hydrogen production device to solve the above problems. Summary of the invention

[0005] The present invention aims to solve the above technical problems, that is, to solve the problem of the unsmooth circulation of liquid metal coolant in the prior art. To this end, the present invention provides a liquid metal coolant hydrogen production device with a circulation device, the liquid metal coolant hydrogen production device comprises a reaction pool, the reaction pool is used to hold the liquid metal coolant, a heat source and a water injection device are arranged in the reaction pool, the heat source is used to maintain the liquid metal coolant at a certain temperature, the water injection device is used to inject water into the liquid metal coolant, and a circulation device is also arranged in the reaction pool, the circulation device is used to drive the liquid metal coolant to circulate.

[0006] In a specific embodiment of the liquid metal coolant hydrogen production device with a circulation device, the circulation device includes:

[0007] Driving pump;

[0008] The inflow pipe and the outflow pipe are respectively arranged at two ends of the driving pump. The liquid metal coolant after the reaction flows in from the inflow pipe and flows out from the outflow pipe after passing through the driving pump.

[0009] In a specific embodiment of the liquid metal coolant hydrogen production device with a circulation device, the inlet pipe is a U-shaped pipe.

[0010] In a specific embodiment of the liquid metal coolant hydrogen production device with a circulation device, the circulation device further comprises:

[0011] An exhaust passage is communicated with the inlet pipe.

[0012] In a specific embodiment of the liquid metal coolant hydrogen production device with a circulation device, the heat source is arranged in the center of the reaction pool.

[0013] In a specific embodiment of the liquid metal coolant hydrogen production device with a circulation device, there are two circulation devices, which are symmetrically arranged on both sides of the heat source, and the outlet of the outflow pipe is close to the heat source.

[0014] In a specific embodiment of the above-mentioned liquid metal coolant hydrogen production device with a circulation device, the liquid metal coolant hydrogen production device further includes:

[0015] A partition plate is located in the reaction tank and is arranged around the heat source in a vertical direction to form a heating zone;

[0016] After the liquid metal coolant flows out from the outflow pipe, it flows into the heating zone, is heated when passing through the heat source, and after flowing out of the heating zone, flows to the side of the water injection device to react with water.

[0017] In a specific embodiment of the liquid metal coolant hydrogen production device with a circulation device, the outflow pipe is located below the inflow pipe in the vertical direction.

[0018] In a specific embodiment of the above-mentioned liquid metal coolant hydrogen production device with a circulation device, the partition plate includes:

[0019] A vertical partition plate is arranged around the heat source in a vertical direction to form a heating zone;

[0020] The transverse partition plate is horizontally arranged above the inflow pipe to prevent the heated liquid metal coolant from being sucked into the inflow pipe.

[0021] In a specific embodiment of the above-mentioned liquid metal coolant hydrogen production device with a circulation device, the liquid metal coolant hydrogen production device further includes:

[0022] The oxygen pump device is arranged in the reaction pool and is used to convert oxygen ions in the reaction pool into oxygen gas for discharge, so as to promote the reaction between the liquid metal coolant and water.

[0023] In the case of adopting the above technical solution, the present invention can drive the liquid metal coolant to circulate, extract the cooled liquid metal coolant, and at the same time transport the liquid metal coolant heated by the heat source to the reaction position, thereby improving the hydrogen production efficiency. The inflow pipe can separate the hydrogen and the liquid metal coolant, so that the heat source can heat the liquid metal coolant more fully, and the contact area between the liquid metal coolant and the water is larger, further improving the hydrogen production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a top view of the reaction tank in the invention;

[0026] Figure 2 The present invention Figure 1 A cross-sectional view showing an inlet pipe;

[0027] Figure 3 It is a structural schematic diagram of the water injection nozzle in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the oxygen pump device in the present invention.

[0029] In the figure: 1, reaction pool, 2, heat source, 3, water injection device, 4, circulation device, 5, oxygen pump device, 6, condenser, 7, hydrogen collector, 81, vertical partition, 82, horizontal partition, 9, heating zone, 10, hydrogen detector, 31, water injection pipe, 32, water injection nozzle, 33, shell, 34, first partition, 35, first cavity, 36, first water injection hole, 37, second partition, 38, second cavity, 39, second water injection hole, 41, drive pump, 42, inflow pipe, 43, outflow pipe, 44, exhaust channel, 51, power supply, 52, switch, 53, anode, 54, cathode, 55, rheostat, 56, voltage measuring device, 57, tubular ceramic membrane. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0031] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, ordinal numbers such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-4 As shown, the present invention proposes a liquid metal coolant hydrogen production device, which includes a reaction pool 1, the reaction pool 1 is used to hold the liquid metal coolant, and a heat source 2 is arranged in the reaction pool 1, which is arranged in the reaction pool 1, and the heat source 2 is used to maintain the liquid metal coolant at a certain temperature; in order to facilitate heating of the liquid metal coolant and uniform heating effect, the heat source 2 is arranged in the center of the reaction pool 1; the heat source 2 can be electric heating, reactor heat energy or other heating devices selected according to actual conditions, as long as it can be used to heat the liquid metal coolant, and this change does not deviate from the principle and scope of the present invention.

[0034] A water injection device 3 is arranged in the reaction pool 1, and is used to inject water into the liquid metal coolant; a circulation device 4 is arranged in the reaction pool 1, and is used to make the liquid metal coolant circulate in the reaction pool 1, and the heat source 2 is located at the outlet side of the circulation device 4, which is convenient for heating the cooled liquid metal coolant on the one hand, and shortens the distance for the heated liquid metal coolant to reach the reaction position on the other hand; in order to drive the liquid metal coolant in the entire reaction pool 1 to circulate, there are two circulation devices 4, which are symmetrically arranged on both sides of the heat source 2; in order to increase the reaction speed, a plurality of water injection devices 3 can be arranged, and a plurality of water injection devices 3 are arranged along the reaction pool 1. The inner wall is distributed on both sides of the circulation device 4; and the oxygen pump device 5 is arranged in the reaction pool 1. After water contacts the liquid heavy metal coolant, it evaporates quickly to generate water vapor. The water vapor undergoes a cracking reaction with the liquid heavy metal coolant at high temperature and is decomposed into hydrogen and dissolved oxygen ions. When the concentration of oxygen ions increases, the reaction will be inhibited; the oxygen ions form oxygen at the anode of the oxygen pump device 5, and then the oxygen is extracted, so that the oxygen ion concentration in the reaction pool 1 can be controlled to promote the forward progress of the hydrogen production reaction; since the liquid metal coolant reacts with water near the water injection device 3, a plurality of oxygen pump devices 5 can be set, all of which are arranged around the water injection device 3.

[0035] In this embodiment, the circulation device 4 promotes the circulation of the liquid metal coolant in the entire reaction pool 1. After the heat source 2 and the circulation device 4 cooperate, the cooled liquid metal coolant can be continuously extracted, and the heated liquid metal coolant can be transported to the reaction position, and then the water injection device 3 is cooperated to continuously inject water, so that the hydrogen production reaction can be carried out continuously and efficiently; the oxygen pump device 5 can convert the oxygen ions generated by the hydrogen production reaction into oxygen gas, and control the oxygen ion concentration within a suitable range to avoid the inhibition of the hydrogen production reaction after the oxygen ion concentration increases; in this embodiment, multiple influencing factors in the hydrogen production reaction process are taken into account, and the hydrogen production efficiency is improved through the mutual cooperation of the heat source 2, the water injection device 3, the circulation device 4 and the oxygen pump device 5.

[0036] like Figure 2As shown, in this embodiment, in order to solve the problem that the water injection pipe is easily blocked, the water injection device 3 includes: a water injection pipe 31, one end of the water injection pipe 31 is used to connect to an external water source, and the other end extends into the liquid metal coolant; a water injection nozzle 32, which is arranged at the other end of the water injection pipe 31 and is connected to the water injection pipe 31, the upper surface of the water injection nozzle 32 is located below the liquid surface of the liquid metal coolant, so that water can react with the liquid metal coolant after being sprayed out, the water injection pipe 31 is connected to the water injection nozzle 32, so a part of the water injection pipe 31 will be immersed in the liquid metal coolant, but the top of the water injection pipe 31 is located above the liquid surface of the liquid metal coolant, so that even if some liquid metal coolant flows back into the water injection nozzle 32, it will not exceed the liquid surface of the liquid metal coolant, and the liquid metal coolant in the water injection nozzle 32 is still in a high temperature state and will not solidify when cold. As long as the water pressure is increased, the liquid metal coolant can be pushed out of the water injection nozzle 32.

[0037] If a water outlet hole is directly provided on the water injection pipe 31, the liquid metal coolant may enter the water injection pipe 31 from any of the water outlet holes, causing blockage; in this solution, water is sprayed through the water injection nozzle 32, which can prevent the liquid metal coolant from directly entering the water injection pipe 31, and the position of the reaction can be adjusted by adjusting the position of the water injection nozzle 32. Further, in order to simplify the structure of the water injection pipe 31, the water injection pipe 31 can extend into the liquid metal coolant in the vertical direction.

[0038] Since the liquid metal coolant reacts with water near the second water injection hole 39 , in order to quickly convert the oxygen ions generated by the reaction into oxygen gas for discharge, a plurality of oxygen pump devices 5 may be arranged around the water injection pipe 31 .

[0039] Further, if Figure 2 As shown, the liquid metal coolant hydrogen production device also includes: a condenser 6, which is arranged outside the reaction pool 1 and connected to the top of the reaction pool 1. After the hydrogen and vaporized water at the top of the reaction pool 1 enter the condenser 6, the gaseous water is cooled and becomes liquid and remains in the condenser 6, and the hydrogen passes through the hydrogen detector 10 and enters the hydrogen collector 7; the condenser 6 and the water injection pipe 31 can be connected through a one-way valve. When the condensed water in the condenser 6 reaches a certain amount, it is discharged into the water recovery pipe 31 for secondary utilization; in order to prevent the water in the condenser 6 from flowing back into the reaction pool 1, the connection point between the condenser 6 and the reaction pool 1 is higher than the connection point between the condenser 6 and the water injection pipe 31.

[0040] Further, if Figure 2As shown, in this embodiment, the circulation device 4 includes: a driving pump 41, which can be an impeller pump, and the driving pump 41 includes an impeller part; an inlet pipe 42 and an outlet pipe 43 are respectively arranged at both ends of the driving pump 41, and the reacted liquid metal coolant is sucked from the inlet pipe 42 by the driving pump 41, and is discharged from the outlet pipe 43 after passing through the impeller part of the driving pump 41. The outlet of the outlet pipe 43 is close to the heat source 2, which is convenient for heating the cooled liquid metal coolant and also shortens the distance of the heated liquid metal coolant flowing to the reaction position.

[0041] Since part of the hydrogen generated during the reaction will be mixed with the liquid metal coolant, in order to separate the hydrogen and the liquid metal coolant, the inlet pipe 42 is set as a U-shaped tube. Since the density difference between the liquid metal coolant and the hydrogen is very large, the liquid metal coolant can be easily separated from the hydrogen when flowing in the U-shaped tube, and then the separated hydrogen is collected to avoid the liquid metal coolant entraining gas for circulation, so that the heat source 2 can heat the liquid metal coolant more fully, and the contact area between the liquid metal coolant and the water is larger, thereby improving the hydrogen production efficiency.

[0042] Furthermore, since hydrogen will be separated at the inlet pipe 42 and the drive pump 41, the circulation device 4 also includes an exhaust channel 44, and the drive pump 41 also includes a pump shaft portion. The gap formed between the pump shaft portion of the drive pump 41 and the outer casing or other parts is the exhaust channel 44. The exhaust channel 44 is connected to the inlet pipe 42 and the impeller portion of the drive pump 41, and can also be connected to the outlet pipe 43. The hydrogen in the inlet pipe 42 and the hydrogen in the impeller portion of the drive pump 41 are discharged through the exhaust channel 44. If there is residual hydrogen in the outlet pipe 43, it can also be discharged through the exhaust channel 44; the exhaust channel 44 can be located above the inlet pipe 42 and the impeller portion in the vertical direction. After the hydrogen and the liquid metal coolant are separated, the hydrogen density is small and can be directly discharged along the exhaust channel 44 above.

[0043] Further, if Figure 1-2 As shown, in this embodiment, in order to allow water and liquid metal coolant to fully contact and react, the preferred solution is that water is sprayed upward to react with the high-temperature liquid metal coolant above, and the liquid metal coolant with a lowered temperature after reacting with water flows out from below. In order to allow the circulation of the liquid metal coolant in the reaction pool 1 to proceed in an orderly manner, the liquid metal coolant hydrogen production device also includes: a partition plate, which is arranged in the reaction pool 1, and the partition plate is arranged around the heat source 2 in a vertical direction to form a heating zone 9; the cooled liquid metal coolant is drawn into the inlet pipe 42 by the driving pump 41, and then flows into the heating zone 9 through the outlet pipe 43, is heated when passing through the heat source 2, and flows to the side of the water injection device 3 after flowing out of the heating zone 9 to react with water.

[0044] Furthermore, the partition plate includes a vertical partition plate 81 and a horizontal partition plate 82. The vertical partition plate 81 is arranged around the heat source 2 in the vertical direction to form a heating zone 9. The vertical partition plate 81 can limit the flow direction of the heated liquid metal coolant in the heating zone 9. The vertical partition plates 81 can be arranged continuously or at intervals. The cross section can be square or circular, or other suitable forms, as long as the flow direction of the heated liquid metal coolant can be limited; Figure 2 It can be seen that the transverse partition plate 82 is arranged above the inlet pipe 42 in the horizontal direction to prevent the heated liquid metal coolant from being directly sucked into the inlet pipe 42. Figure 1 It can be seen that the circulation device 4 is arranged next to the water injection device 3, near the location where the hydrogen production reaction occurs, and the inflow pipe 42 can suck the cooled liquid metal coolant from under the horizontal partition plate 82.

[0045] Furthermore, since the heat source 2 is arranged at the bottom of the reaction pool 1, the outflow pipe 43 is arranged below the inflow pipe 42 in the vertical direction, so that the liquid metal coolant flowing out of the outflow pipe 43 will flow from top to bottom into the vicinity of the water injection device 3 after passing through the heating zone 9, so as to react with water.

[0046] Further, if Figure 3 As shown, in order to make the water spray out evenly, the water injection nozzle 32 includes: a shell 33; a first partition plate 34, which is arranged on the shell 33, and a first cavity 35 is formed between the first partition plate 34 and the shell 33, and the water injection pipe 31 is connected to the first cavity 35; a first water injection hole 36, which is arranged on the first partition plate 34, and the water in the water injection pipe 31 flows into the first cavity 35 and then flows out from the first water injection hole 36, so that the water in the water injection pipe 31 is sprayed out more evenly, thereby increasing the contact area between water and liquid metal coolant and improving the reaction efficiency.

[0047] In order to make the water spray out more evenly, the water injection nozzle 32 further includes: a second partition 37, which is arranged on the shell 33, a second cavity 38 is formed between the first partition 34 and the second partition 37, and the first cavity 35 and the second cavity 38 are connected through the first water injection hole 36; a second water injection hole 39, which is arranged on the second partition 37. After the water in the water injection pipe 31 flows into the first cavity 35, it is possible that most of the water will flow out from the first water injection hole 36 close to the water injection pipe 31. After the second cavity 38 is set, the water flows out of the first water injection hole 36 and then flows into the second cavity 38, and then sprays out more evenly from the second water injection hole 39, further improving the reaction efficiency. If the second cavity 38 is located below the first cavity 35 in the vertical direction, the generated hydrogen will rise and may enter the water injection nozzle 32, affecting the reaction. Therefore, the second cavity 38 can be arranged above the first cavity 35 in the vertical direction. Since the second cavity 38 is located above the first cavity 35 in the vertical direction and water is sprayed upward, the oxygen pump device 5 can be arranged above the second partition 37 to facilitate the hydrogen production reaction.

[0048] like Figure 4 As shown, in order to improve the efficiency of hydrogen production, the oxygen pump device 5 includes: a power supply 51, which is connected to a switch 52, and the switch 52 is used to control the on and off of the power supply 51; an anode 53, which is arranged in the reaction cell 1 and connected to the positive electrode of the power supply 51, and the anode can use platinum (Pt) as a material for releasing oxygen; a cathode 54, which is arranged in the reaction cell 1 and connected to the negative electrode of the power supply 51; a rheostat 55, which is connected in series with the power supply 51, and the resistance value of the rheostat 55 is adjusted according to the size of the oxygen ion concentration in the center of the reaction cell 1, so as to change the voltage between the anode 53 and the cathode 54 when the switch 52 is closed, so as to promote the oxygen release rate, thereby improving the hydrogen production efficiency.

[0049] like Figure 4 As shown, the power supply 51, the switch 52, the rheostat 55 and the anode 53 are connected in sequence. The rheostat 55 can be a sliding rheostat. When the switch 52 is in the closed state, when the oxygen ion concentration is high, the rheostat 55 slides upward to increase the voltage value of the electrode; when the oxygen ion concentration is low, the rheostat 55 slides downward to reduce the voltage value of the electrode, thereby promoting the precipitation of oxygen.

[0050] Furthermore, in this embodiment, in order to measure the oxygen concentration in the liquid metal, the oxygen pump device 5 further includes: a voltage measuring device 56, which is used to measure the voltage between the cathode 54 and the anode 53 when the switch 52 is disconnected. The voltage measuring device 56 can be a voltmeter. When the switch 52 is turned on, the rheostat 55 slides to the uppermost section. Due to the migration of oxygen ions, an oxygen ion concentration difference is generated between the anode 53 and the cathode 54 to form an electromotive force. The voltage is measured by the voltage measuring device 56, and the relationship between the voltage signal and the oxygen ion concentration can be deduced, thereby achieving the measurement of the oxygen concentration in the liquid metal. The structure is simple and easy to manufacture and operate.

[0051] The oxygen pump device 5 also includes: a tubular ceramic membrane 57, and the anode 53 is arranged in the tubular ceramic membrane 57. After the oxygen ions pass through the tubular ceramic membrane 57, oxygen is formed at the anode 53. In order to allow the hydrogen production reaction to continue, a ceramic material with low resistance is selected as the electrolyte layer.

[0052] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A liquid metal coolant hydrogen production device with a circulation device, the liquid metal coolant hydrogen production device comprising a reaction pool (1), the reaction pool (1) being used to hold the liquid metal coolant, the reaction pool (1) being provided with a heat source (2) and a water injection device (3), the heat source (2) being used to maintain the liquid metal coolant at a certain temperature, the water injection device (3) being used to inject water into the liquid metal coolant, It is characterized in that A circulation device (4) is also provided in the reaction pool (1), and the circulation device (4) is used to drive the liquid metal coolant to circulate; The circulation device (4) comprises: A driving pump (41); an inflow pipe (42) and an outflow pipe (43), wherein the inflow pipe (42) is a U-shaped pipe, and the inflow pipe (42) and the outflow pipe (43) are respectively arranged at two ends of the driving pump (41); the liquid metal coolant after the reaction flows in from the inflow pipe (42), passes through the driving pump (41), and then flows out from the outflow pipe (43); An exhaust passage (44) is communicated with the inlet pipe (42).

2. The liquid metal coolant hydrogen production device with a circulation device according to claim 1, characterized in that: The heat source (2) is arranged in the center of the reaction tank (1).

3. The liquid metal coolant hydrogen production device with a circulation device according to claim 2, characterized in that: There are two circulation devices (4), which are symmetrically arranged on both sides of the heat source (2), and the outlet of the outflow pipe (43) is close to the heat source (2).

4. The liquid metal coolant hydrogen production device with a circulation device according to claim 3, characterized in that: The liquid metal coolant hydrogen production device also includes: A partition plate located in the reaction pool (1), the partition plate being arranged around the heat source (2) to form a heating zone (9); After flowing out of the outflow pipe (43), the liquid metal coolant flows into the heating zone (9), is heated when passing through the heat source (2), and after flowing out of the heating zone (9), flows to the side of the water injection device (3) to react with water.

5. The liquid metal coolant hydrogen production device with a circulation device according to claim 4, characterized in that: The outflow pipe (43) is located below the inflow pipe (42) in the vertical direction.

6. The liquid metal coolant hydrogen production device with a circulation device according to claim 4, characterized in that: The partition plate comprises: A vertical partition plate (81) is arranged around the heat source (2) in a vertical direction to form the heating zone (9); A transverse partition plate (82) is arranged above the inlet pipe (42) in a horizontal direction to prevent the heated liquid metal coolant from being sucked into the inlet pipe (42).

7. The liquid metal coolant hydrogen production device with a circulation device according to claim 1, characterized in that: The liquid metal coolant hydrogen production device also includes: An oxygen pump device (5) is arranged in the reaction pool (1) and is used to convert oxygen ions in the reaction pool (1) into oxygen gas for discharge, so as to promote the reaction between the liquid metal coolant and water.

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