Hydrogen production plant and thermal management system

Abstract

The utility model discloses hydrogen production equipment and a heat management system, and relates to the technical field of hydrogen production, the hydrogen production equipment comprises an electrolytic bath, a gas-liquid separator, a first heat exchanger and a heat tracing station, the electrolytic bath is provided with a gas outlet, the gas-liquid separator is communicated with the gas outlet, and the gas-liquid separator is also provided with a heat flow outlet; the first heat exchanger is provided with a first electrolyte inlet, a heat tracing liquid inlet and a heat tracing liquid outlet; the first electrolyte inlet is communicated with the hot flow outlet, and the heat tracing liquid inlet is communicated with the heat tracing liquid outlet; the heat tracing station, the heat tracing liquid inlet and the heat tracing liquid outlet jointly form a circulation loop, so that heat tracing liquid flowing out of the heat tracing liquid outlet enters the heat tracing station and then enters the first heat exchanger through the heat tracing liquid inlet. According to the technical scheme provided by the utility model, the recycling rate of waste heat generated in the hydrogen production process can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production, in particular to a hydrogen production device and a thermal management system. Background Art

[0002] A large amount of heat is generated during the hydrogen production process by electrolysis. However, in traditional hydrogen production equipment, the alkaline solution with a large amount of heat energy separated from the gas-liquid separator is usually heat-exchanged by circulating cold water and then circulated into the electrolytic cell, which wastes a lot of heat. Utility Model Content

[0003] The main purpose of the utility model is to provide a hydrogen production equipment and a thermal management system, aiming to improve the recovery rate of waste heat in the hydrogen production equipment.

[0004] To achieve the above-mentioned purpose, the hydrogen production equipment proposed in the utility model includes an electrolytic cell, a gas-liquid separator, a first heat exchanger and a heating station, the electrolytic cell has a gas outlet, the gas-liquid separator is connected to the gas outlet, and the gas-liquid separator also has a heat flow outlet; the first heat exchanger has a first electrolyte inlet, a heating liquid inlet and a heating liquid outlet; the first electrolyte inlet is connected to the heat flow outlet, and the heating liquid inlet is connected to the heating liquid outlet; the heating station, the heating liquid inlet and the heating liquid outlet jointly form a circulation loop, so that the heating liquid flowing out of the heating liquid outlet enters the heating station and then enters the first heat exchanger through the heating liquid inlet.

[0005] In one embodiment, a first control valve is provided between the heat flow outlet and the first electrolyte inlet;

[0006] And / or, the first heat exchanger further has a first electrolyte outlet communicated with the first electrolyte inlet, and a second control valve is provided on a side of the first electrolyte outlet away from the first electrolyte inlet.

[0007] In one embodiment, a first circulation pump is provided on the circulation loop.

[0008] In one embodiment, the first heat exchanger further includes a first electrolyte outlet communicated with the first electrolyte inlet, and the hydrogen production equipment further includes a second heat exchanger, and the second heat exchanger includes:

[0009] a second electrolyte inlet, the heat flow outlet and the first electrolyte outlet both being in communication with the second electrolyte inlet;

[0010] a second electrolyte outlet, the second electrolyte outlet being connected to the electrolytic cell;

[0011] A cooling pipe is isolated from both the second electrolyte inlet and the second electrolyte outlet.

[0012] In one embodiment, a third control valve is provided between the second electrolyte inlet and the hot flow outlet.

[0013] In one embodiment, a first control valve is provided between the heat flow outlet and the first electrolyte inlet; the first heat exchanger further has a first electrolyte outlet connected to the first electrolyte inlet, and a second control valve is provided on a side of the first electrolyte outlet away from the first electrolyte inlet;

[0014] The hydrogen production equipment further includes a second heat exchanger, wherein the second heat exchanger includes:

[0015] a second electrolyte inlet, the heat flow outlet and the first electrolyte outlet both being in communication with the second electrolyte inlet;

[0016] a second electrolyte outlet, the second electrolyte outlet being connected to the electrolytic cell;

[0017] A cooling pipeline is isolated from both the second electrolyte inlet and the second electrolyte outlet; a third control valve is provided between the second electrolyte inlet and the hot flow outlet.

[0018] In one embodiment, the heat tracing station comprises:

[0019] A heating water supply device, the heating water supply device is connected to the heating liquid outlet;

[0020] A heat tracing water return device, the heat tracing water return device is connected to the heat tracing liquid inlet;

[0021] A heating pipeline, the two ends of which are respectively connected to the heating water supply device and the heating water return device, so as to be thermally connected to the heating point required for heating.

[0022] In one embodiment, the heating pipes are provided with at least two, at least two of the heating pipes are arranged in parallel, and each of the heating pipes is provided with a fourth control valve; and / or, the heating pipe includes a flexible joint and at least two sections of heating sub-pipes, and at least two sections of the heating sub-pipes are connected by the flexible joint.

[0023] The utility model also provides a heat management system, comprising a heating point and the above-mentioned hydrogen production equipment, wherein the heating point is arranged close to the heating station and is heat-conductingly connected to the heating station.

[0024] In one embodiment, the heating station includes a heating pipe, the heating point is arranged in close contact with the heating pipe, and the thermal management system also includes a binding member and an insulating member, the binding member binds the heating point and the heating pipe, and the insulating member is wrapped outside the binding member.

[0025] The technical solution of the utility model connects the gas-liquid separator to the gas outlet of the electrolytic cell, so that the gas mixed with a part of the electrolyte in the electrolytic cell can enter the gas-liquid separator for gas-liquid separation to extract crude hydrogen and crude oxygen, and the gas-liquid separator also has a heat flow outlet, which is used for the separated electrolyte to flow out. The electrolyte carries a large amount of heat, and by connecting the heat flow outlet with the first electrolyte inlet of the first heat exchanger, the first heat exchanger also has a heating liquid inlet and a heating liquid outlet, so that the electrolyte carrying a large amount of heat enters the first heat exchanger and exchanges heat with the heating liquid entering the first heat exchanger through the heating liquid inlet, so that the temperature of the heating liquid increases when it flows out from the heating liquid outlet. By forming a circulation loop with the heating station, the heating liquid inlet and the heating liquid outlet, the heating liquid with the increased temperature enters the heating station and exchanges heat with the hot spot near the heating station, thereby heating the hot spot, so that the temperature of the hot spot is increased, avoiding the risk of the hot spot failing to work in a cold environment, and at the same time making full use of the large amount of waste heat generated in the hydrogen production process, improving the recovery rate of waste heat in the hydrogen production process. In addition, the heating liquid after heat exchange with the hot spot flows out of the heating station and flows back to the first heat exchanger through the heating liquid inlet, and then exchanges heat with the electrolyte entering the first heat exchanger again, avoiding the introduction of new heating liquid from the outside, thereby improving the recycling rate of the heating liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 A structural schematic diagram of an embodiment of a hydrogen production device provided by the utility model;

[0028] Figure 2 A schematic diagram of the connection structure of a heat tracing point and a heat tracing pipe in a heat management system provided by the utility model;

[0029] Figure 3 This is a schematic diagram of the connection structure of another embodiment of the heating point and the heating pipeline in the thermal management system provided by the utility model.

[0030] Description of Figure Numbers:

[0031] 100. Electrolyzer;

[0032] 200. Gas-liquid separator;

[0033] 300, first heat exchanger; 310, first electrolyte inlet; 320, heating liquid inlet; 330, heating liquid outlet; 340, first electrolyte outlet;

[0034] 400, heating station; 410, heating pipeline; 420, fourth control valve;

[0035] 510, first control valve; 520, second control valve; 530, third control valve; 540, on-off valve

[0036] 600, first circulation pump;

[0037] 710, hot spot; 720, binding piece; 730, thermal insulation piece;

[0038] 800, second heat exchanger; 810, second electrolyte inlet; 820, second electrolyte outlet;

[0039] 900. Second circulation pump.

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0044] A large amount of heat is generated during the electrolytic hydrogen production process. However, in traditional hydrogen production equipment, the alkali solution with a large amount of heat energy separated from the gas-liquid separator is usually heat-exchanged by circulating cold water and then circulated into the electrolyzer, which wastes a lot of heat. When the electrolysis device is arranged outdoors, especially in colder areas, the heating problem of some instruments and some manual valves must also be considered. Currently, most of the devices on the market use traditional hot water, steam heating or electric heating modes. The heat source for heating is usually an additional heat source other than electrolysis, which greatly wastes energy.

[0045] The utility model provides a hydrogen production device.

[0046] See also Figure 1 In one embodiment of the utility model, the hydrogen production equipment includes an electrolyzer 100, a gas-liquid separator 200, a first heat exchanger 300 and a heating station 400. The electrolyzer 100 has a gas outlet, the gas-liquid separator 200 is connected to the gas outlet, and the gas-liquid separator 200 also has a heat flow outlet; the first heat exchanger 300 has a first electrolyte inlet 310, a heating liquid inlet 320 and a heating liquid outlet 330; the first electrolyte inlet 310 is connected to the heat flow outlet, and the heating liquid inlet 320 is connected to the heating liquid outlet 330; the heating station 400, the heating liquid inlet 320 and the heating liquid outlet 330 jointly form a circulation loop, so that the heating liquid flowing out of the heating liquid outlet 330 enters the heating station 400 and then enters the first heat exchanger 300 through the heating liquid inlet 320.

[0047] The electrolytic cell 100 is provided with an electrolyte, and the electrolytic cell 100 is powered on to electrolyze the electrolyte, thereby generating hydrogen and oxygen. Two gas-liquid separators 200 may be provided, and the hydrogen and oxygen flowing out of the electrolytic cell 100 enter different gas-liquid separators 200 respectively, so as to preliminarily dry the hydrogen and oxygen mixed with the electrolyte, thereby generating crude hydrogen and crude oxygen. The gas-liquid separator 200 also has a hot flow outlet, which is used to flow out the electrolyte with a large amount of heat. The hydrogen production equipment in the technical solution of the utility model further includes a first heat exchanger 300, which has a first electrolyte inlet 310, a heating liquid inlet 320 and a heating liquid outlet 330. The first electrolyte inlet 310 is connected to the heat flow outlet, so that the electrolyte with a large amount of heat flowing out of the gas-liquid separator 200 enters the first heat exchanger 300, and at the same time, the heating liquid with a lower temperature enters the first heat exchanger 300 through the heating liquid inlet 320 to exchange heat with the electrolyte with a large amount of heat, thereby increasing the temperature of the heating liquid flowing out of the heating liquid outlet 330. By forming a circulation loop with the heating station 400, the heating liquid inlet 320 and the heating liquid outlet 330, the heating liquid with a higher temperature flowing out of the heating liquid outlet 330 enters the heating station 400 and heats the hot spot 710 near the heating station 400, thereby making full use of the heat of the electrolyte flowing out of the gas-liquid separator 200, and improving the utilization rate of the waste heat generated in the hydrogen production process. In addition, the temperature of the heating fluid decreases after flowing out of the heating station 400, and it flows back to the heating fluid inlet 320 and enters the first heat exchanger 300, thereby undergoing the next round of heat exchange with the electrolyte with a large amount of heat flowing into the first heat exchanger 300, thereby improving the utilization rate of the heating fluid.

[0048] Specifically, the electrolyte can be an alkali solution or water. In order to ensure the safety of the heating fluid during circulation, water is usually used for the heating fluid. When the electrolyte and the heating fluid are heat exchanged in the first heat exchanger 300, the two can flow in different pipelines respectively. Specifically, the first heat exchanger 300 has an electrolyte flow channel and a heating fluid flow channel, the electrolyte flow channel and the heating fluid flow channel are isolated from each other, one of the ports of the electrolyte flow channel is the first electrolyte inlet 310; the two ports of the heating fluid flow channel form the heating fluid inlet 320 and the heating fluid outlet 330 respectively. In addition, after the heating fluid enters the heating station 400, the circulation pipeline where the heating fluid is located and the heating point 710 can also be independently and closely arranged, or the circulation pipeline where the heating fluid is located can wrap the heating point 710, etc., as long as the heating fluid can exchange heat with the heating point 710, so as to facilitate the transfer of the heat of the heating fluid to the heating point 710, so as to make full use of the waste heat generated in the hydrogen production process, and improve the recovery rate of the waste heat. The hot spot 710 may be an outdoor test pipe, a level gauge, a valve, an isolator or other components. Since the hot spot 710 is common knowledge to those skilled in the art, it will not be described in detail.

[0049] The technical solution of the utility model connects the gas-liquid separator 200 to the gas outlet of the electrolytic cell 100, so that the gas mixed with a part of the electrolyte in the electrolytic cell 100 can enter the gas-liquid separator 200 for gas-liquid separation to extract crude hydrogen and crude oxygen, and the gas-liquid separator 200 also has a heat flow outlet, which is used for the separated electrolyte to flow out. The electrolyte carries a large amount of heat, and by connecting the heat flow outlet with the first electrolyte inlet 310 of the first heat exchanger 300, the first heat exchanger 300 also has a heating liquid inlet 320 and a heating liquid outlet 330, so that the electrolyte carrying a large amount of heat enters the first heat exchanger 300 and exchanges heat with the heating liquid entering the first heat exchanger 300 through the heating liquid inlet 320, so that the temperature of the heating liquid increases when it flows out from the heating liquid outlet 330. By forming a circulation loop with the heating station 400, the heating liquid inlet 320 and the heating liquid outlet 330, the heating liquid with the increased temperature enters the heating station 400 and exchanges heat with the hot spot 710 near the heating station 400, thereby heating the hot spot 710, so that the temperature of the hot spot 710 is increased, avoiding the risk of the hot spot 710 failing to work in a cold environment, and at the same time, making full use of the large amount of waste heat generated in the hydrogen production process, improving the recovery rate of the waste heat in the hydrogen production process. In addition, after the heating liquid exchanges heat with the hot spot 710, it flows out of the heating station 400 and flows back to the first heat exchanger 300 through the heating liquid inlet 320, and then exchanges heat with the electrolyte entering the first heat exchanger 300 again, avoiding the introduction of new heating liquid from the outside, thereby improving the recycling rate of the heating liquid.

[0050] like Figure 1 As shown, in the embodiment of the present utility model, a first control valve 510 is provided between the hot flow outlet and the first electrolyte inlet 310 .

[0051] The first control valve 510 may be a one-way valve that limits one-way conduction from the hot flow outlet to the first electrolyte inlet 310. Alternatively, the first control valve 510 may be a two-way solenoid valve or a ball valve.

[0052] By setting the first control valve 510 between the heat flow outlet and the first electrolyte inlet 310, the heat flow outlet can be connected to the first electrolyte inlet 310 or disconnected from the first electrolyte inlet 310 by controlling the first control valve 510. For example, in a cold environment, in order to facilitate the heating of the hot spot 710, the first control valve 510 can be opened so that the electrolyte with a certain amount of heat flowing out of the heat flow outlet can enter the first heat exchanger 300 through the first electrolyte inlet 310 to exchange heat with the heating liquid in the first heat exchanger 300, thereby ensuring that the temperature of the heating liquid flowing out of the heating liquid outlet 330 is high, and the heating liquid carries the waste heat generated in the hydrogen production process to heat the hot spot 710, thereby improving the recovery rate of the waste heat generated in the hydrogen production process. In hot summer, the first control valve 510 can be closed to turn off the heating function of the hydrogen production equipment on the hot spot 710.

[0053] like Figure 1 As shown, in the embodiment of the present invention, the first heat exchanger 300 further has a first electrolyte outlet 340 communicated with the first electrolyte inlet 310 , and a second control valve 520 is provided on a side of the first electrolyte outlet 340 away from the first electrolyte inlet 310 .

[0054] By disposing the second control valve 520 on the side of the first electrolyte outlet 340 away from the first electrolyte inlet 310, it is convenient for the user to disassemble and repair the first heat exchanger 300. It should be noted that the electrolyte flowing out of the first electrolyte outlet 340 can be directly discharged or circulated back into the electrolytic cell 100.

[0055] like Figure 1 As shown, based on the solution that the heating station 400, the heating liquid inlet 320 and the heating liquid outlet 330 jointly form a circulation loop, in an embodiment of the present utility model, a first circulation pump 600 is provided on the circulation loop.

[0056] By arranging the first circulation pump 600 on the circulation loop, sufficient power can be provided for the heating liquid to flow on the circulation loop, ensuring the stable circulation of the heating liquid. Specifically, the first circulation pump 600 can be arranged between the heating station 400 and the heating liquid inlet 320, or between the heating station 400 and the heating liquid outlet 330.

[0057] like Figure 1As shown, in an embodiment of the utility model, the first heat exchanger 300 also includes a first electrolyte outlet 340 connected to the first electrolyte inlet 310, the hydrogen production equipment also includes a second heat exchanger 800, the second heat exchanger 800 includes a second electrolyte inlet 810, a second electrolyte outlet 820 and a cooling pipe, the hot flow outlet and the first electrolyte outlet 340 are both connected to the second electrolyte inlet 810; the second electrolyte outlet 820 is connected to the electrolytic cell 100; the cooling pipe is isolated from the second electrolyte inlet 810 and the second electrolyte outlet 820.

[0058] By connecting the first electrolyte outlet 340 to the second electrolyte inlet 810 of the second heat exchanger 800, and the second electrolyte outlet 820 to the electrolytic cell 100, the electrolyte flowing out of the first electrolyte outlet 340 can enter the second heat exchanger 800, and then exchange heat with the coolant in the cooling pipe in the second heat exchanger 800 again, thereby further reducing the temperature of the electrolyte so that it can meet the temperature requirements when entering the electrolytic cell 100. In addition, by connecting the hot flow outlet to the second electrolyte inlet 810, and the second electrolyte outlet 820 to the electrolytic cell 100, the electrolyte flowing out of the hot flow outlet can also enter the second heat exchanger 800 to exchange heat with the coolant in the cooling pipe, thereby reducing the temperature of the electrolyte so that it can meet the temperature requirements when entering the electrolytic cell 100.

[0059] like Figure 1 As shown, further, a third control valve 530 is provided between the second electrolyte inlet 810 and the hot flow outlet.

[0060] By providing the third control valve 530 between the second electrolyte inlet 810 and the heat flow outlet, it is possible to control whether the electrolyte flowing out of the heat flow outlet can flow to the second heat exchanger 800 by controlling the opening and closing of the third control valve 530. Specifically, the third control valve 530 may be a one-way valve, the conduction direction of which is from the heat flow outlet to the second electrolyte inlet 810. Alternatively, the third control valve 530 may also be a two-way solenoid valve or an electric ball valve.

[0061] In a cold environment, in order to improve the heating efficiency of the hot spot 710, the third control valve 530 can be closed so that all the electrolyte flowing out of the hot flow outlet enters the first heat exchanger 300, so that the heating fluid in the first heat exchanger 300 and the electrolyte can exchange more heat, and the temperature of the heating fluid when it flows out of the heating fluid outlet 330 is increased as much as possible, thereby improving the heating efficiency and heating temperature of the hot spot 710.

[0062] In a hot environment, there is no need to heat the test pipe, level gauge, valve, isolator and other components, so the first control valve 510 and the second control valve 520 mentioned above can be closed, and the third control valve 530 can be opened, so that the electrolyte flowing out of the hot flow outlet directly enters the second heat exchanger 800 to exchange heat with the coolant in the cooling pipe, so as to cool the electrolyte, and then the cooled electrolyte enters the electrolytic cell 100 for electrolysis, thereby improving the recycling rate of the electrolyte.

[0063] like Figure 1 As shown, further, the cooling pipeline of the second heat exchanger 800 includes a coolant inlet and a coolant outlet, the coolant inlet is connected to the coolant source, and a stop valve 540 is provided at the front end of the coolant inlet, and the stop valve 540 can control whether the coolant is passed into the second heat exchanger 800, thereby reducing the risk of coolant input when the second heat exchanger 800 is not used. Specifically, the coolant can be cold water or other liquids with lower temperatures.

[0064] like Figure 1 As shown, further, a second circulation pump 900 is provided between the second heat exchanger 800 and the electrolytic cell 100 .

[0065] With such an arrangement, the second circulation pump 900 can provide power for the flow of electrolyte on the circulation path formed by the electrolytic cell 100, the gas-liquid separator 200 and the second heat exchanger 800, thereby ensuring that the electrolyte circulates effectively and stably on the circulation path.

[0066] like Figure 1 As shown, in an embodiment of the utility model, the heating station 400 includes a heating water supply device, a heating water return device and a heating pipe 410. The heating water supply device is connected to the heating liquid outlet 330; the heating water return device is connected to the heating liquid inlet 320; the two ends of the heating pipe 410 are respectively connected to the heating water supply device and the heating water return device, so as to be thermally connected to the heating point 710 required for heating.

[0067] The heating water supply device can be a pipeline structure or a box structure, etc. By connecting the heating water supply device with the heating liquid outlet 330, the hot water flowing out of the heating liquid outlet 330 of the first heat exchanger 300 can enter the heating water supply device, so that the heating water supply device can provide hot water.

[0068] Similarly, the heat tracing water return device can be a pipe structure or a box structure, etc. By connecting the heat tracing water return device with the heat tracing liquid inlet 320, the water from the heat tracing station 400 can flow back to the first heat exchanger 300 through the heat tracing water return device, thereby achieving a circulating flow effect of the heat tracing liquid. The heat tracing pipe 410 is connected to the heat tracing point 710 by heat conduction, which means that the heat tracing pipe 410 can transfer heat to the heat tracing point 710. For example, the heat tracing pipe 410 can be arranged in close contact with the heat tracing point 710, or the heat tracing pipe 410 and the heat tracing point 710 are connected by heat conductive adhesive, etc.

[0069] By connecting the two ends of the heating pipe 410 to the heating water supply device and the heating water return device respectively, the heating pipe 410 is thermally connected to the heating point 710. The heating pipe 410 receives hot water provided by the heating water supply device, so that when passing through the heating point 710, it can heat the heating point 710 and increase the temperature at the heating point 710. Then, the hot water enters the heating water return device to flow back into the first heat exchanger 300 through the heating water return device.

[0070] like Figure 1 As shown, further, at least two heating pipes 410 are provided, and at least two heating pipes 410 are arranged in parallel, and each heating pipe 410 is provided with a fourth control valve 420.

[0071] By providing at least two heat tracing pipes 410, the at least two heat tracing pipes 410 can heat the same heat tracing point 710 at the same time, thereby improving the heat tracing efficiency; the at least two heat tracing pipes 410 can also heat different heat tracing points 710. In addition, by providing a fourth control valve 420 on each heat tracing pipe 410, the on-off of each heat tracing pipe 410 can be controlled separately, so that the on-off of each heat tracing pipe 410 can be flexibly controlled, thereby improving the flexibility of control.

[0072] Specifically, the fourth control valve 420 may be a one-way valve, which conducts from the heating water supply device to the heating water return device. Alternatively, the fourth control valve 420 may be a two-way solenoid valve or an electric ball valve.

[0073] In the technical solution of the present utility model, the heating pipe 410 includes a flexible joint and at least two sections of heating sub-pipes, and the at least two sections of heating sub-pipes are connected by the flexible joint.

[0074] Such a configuration makes it easy to disassemble and repair the heating pipe 410, thereby reducing the cost of repair and replacement. Specifically, the sizes of the interfaces at both ends of the flexible joint are the same, so that two sections of heating sub-pipes with the same pipe diameter can be connected through the flexible joint; or, the sizes of the interfaces at both ends of the flexible joint are different, so that two sections of heating sub-pipes with different pipe diameters can be connected through the flexible joint.

[0075] The utility model also proposes a thermal management system, which includes a heat tracing point 710 and a hydrogen production device. The specific structure of the hydrogen production device refers to the above embodiment. Since the thermal management system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the heat tracing point 710 is arranged near the heat tracing station 400 and is thermally connected to the heat tracing station 400.

[0076] By arranging the heating point 710 close to the heating station 400 and thermally connecting to the heating station 400, the heat of the heating station 400 can be transferred to the heating point 710, so that the temperature of the heating point 710 is increased to ensure that the heating point 710 can work normally.

[0077] In the embodiments of the present invention, Figure 2 or Figure 3 As shown, the heating station 400 includes a heating pipe 410, and the heating point 710 is arranged in close contact with the heating pipe 410. The thermal management system also includes a binding member 720 and a thermal insulation member 730. The binding member 720 binds the heating point 710 and the heating pipe 410, and the thermal insulation member 730 is wrapped outside the binding member 720.

[0078] The binding member 720 is used to bind the hot spot 710 and the heating pipe 410 together. The binding member 720 can be a wire or a rope, etc., as long as it can achieve the effect of binding the hot spot 710 and the heating pipe 410 together. By binding the hot spot 710 and the heating pipe 410 together through the binding member 720, the relative position of the hot spot 710 and the heating pipe 410 is relatively fixed, and the two can be more firmly attached, thereby ensuring a good heat conduction effect. In addition, the thermal insulation member 730 can be a thermal insulation blanket or an aluminum silicate rope. By wrapping the thermal insulation member 730 outside the binding member 720, the thermal insulation member 730 can wrap at least part of the hot spot 710 and the heating pipe 410, so that the heating pipe 410 transfers more heat to the hot spot 710 without leaking easily, so as to improve the heat conduction efficiency.

[0079] Specifically, taking the hot spot 710 as a test pipeline as an example, Figure 2 As shown, when there is one heat tracing point 710, there can be one heat tracing pipe 410, and the outer wall of one heat tracing pipe 410 is arranged to fit the outer wall of another heat tracing pipe 410. Figure 3 As shown, when two heating point 710 are provided, the two heating point 710 can be simultaneously disposed in close contact with one heating pipe 410 .

[0080] Furthermore, in order to protect the heat insulating member 730, a protective layer may be wrapped around the heat insulating member 730. The protective layer may be made of stainless steel, so as to adapt to the outdoor environment and reduce the risk of rust while protecting the heat insulating member 730. Of course, the protective layer may also be made of other materials as long as the effect of protecting the heat insulating member 730 can be achieved.

[0081] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hydrogen production device, characterized in that: include: an electrolytic cell having a gas outlet; A gas-liquid separator, the gas-liquid separator is connected to the gas outlet, and the gas-liquid separator also has a heat flow outlet; A first heat exchanger, wherein the first heat exchanger has a first electrolyte inlet, a heating fluid inlet, and a heating fluid outlet; the first electrolyte inlet is connected to the heat flow outlet, and the heating fluid inlet is connected to the heating fluid outlet; as well as The heating station, the heating fluid inlet and the heating fluid outlet together form a circulation loop, so that the heating fluid flowing out of the heating fluid outlet enters the heating station and then enters the first heat exchanger through the heating fluid inlet.

2. The hydrogen production equipment according to claim 1, characterized in that: A first control valve is provided between the heat flow outlet and the first electrolyte inlet; And / or, the first heat exchanger further has a first electrolyte outlet communicated with the first electrolyte inlet, and a second control valve is provided on a side of the first electrolyte outlet away from the first electrolyte inlet.

3. The hydrogen production equipment according to claim 1, characterized in that: The circulation loop is provided with a first circulation pump.

4. The hydrogen production equipment according to claim 1, characterized in that: The first heat exchanger further includes a first electrolyte outlet communicated with the first electrolyte inlet, and the hydrogen production equipment further includes a second heat exchanger, and the second heat exchanger includes: a second electrolyte inlet, the heat flow outlet and the first electrolyte outlet both being in communication with the second electrolyte inlet; a second electrolyte outlet, the second electrolyte outlet being connected to the electrolytic cell; A cooling pipe is isolated from both the second electrolyte inlet and the second electrolyte outlet.

5. The hydrogen production equipment according to claim 4, characterized in that: A third control valve is provided between the second electrolyte inlet and the hot flow outlet.

6. The hydrogen production equipment according to claim 1, characterized in that: A first control valve is provided between the heat flow outlet and the first electrolyte inlet; the first heat exchanger also has a first electrolyte outlet connected to the first electrolyte inlet, and a second control valve is provided on a side of the first electrolyte outlet away from the first electrolyte inlet; The hydrogen production equipment further includes a second heat exchanger, wherein the second heat exchanger includes: a second electrolyte inlet, the heat flow outlet and the first electrolyte outlet both being in communication with the second electrolyte inlet; a second electrolyte outlet, the second electrolyte outlet being connected to the electrolytic cell; A cooling pipeline is isolated from both the second electrolyte inlet and the second electrolyte outlet; a third control valve is provided between the second electrolyte inlet and the hot flow outlet.

7. The hydrogen production equipment according to any one of claims 1 to 6, characterized in that: The heating station comprises: A heating water supply device, the heating water supply device is connected to the heating liquid outlet; A heat tracing water return device, the heat tracing water return device is connected to the heat tracing liquid inlet; A heating pipeline, the two ends of which are respectively connected to the heating water supply device and the heating water return device, so as to be thermally connected to the heating point required for heating.

8. The hydrogen production equipment according to claim 7, characterized in that: There are at least two heating pipes, at least two of which are arranged in parallel, and each of which is provided with a fourth control valve; And / or, the heating pipe comprises a flexible joint and at least two sections of heating sub-pipes, and at least two sections of the heating sub-pipes are connected via the flexible joint.

9. A thermal management system, characterized in that: It comprises a heating point and the hydrogen production equipment according to any one of claims 1 to 8, wherein the heating point is arranged close to the heating station and is thermally connected to the heating station.

10. The thermal management system according to claim 9, characterized in that: The heating station includes a heating pipe, the heating point is fitted with the heating pipe, and the thermal management system also includes a binding part and a thermal insulation part, the binding part binds the heating point and the heating pipe, and the thermal insulation part is wrapped outside the binding part.

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