Energy-saving steam electrolyzer with heat recovery structure

Abstract

The present invention relates to the technical field of electrolyzers, and specifically discloses an energy-saving water vapor electrolyzer with a heat recovery structure, comprising a heating component, a waste heat component, an electrolysis component and a recovery component, which are connected in a circular manner in the order of the heating component, the waste heat component, the electrolysis component and the recovery component; the electrolysis component comprises an electrolysis shell, a first electrode and a second electrode, the electrolysis shell is a concave structure, the first electrode and the second electrode are both fixedly connected at the lower end of the inner part of the electrolysis shell, and the first electrode and the second electrode are symmetrically located in the cavities on both sides of the electrolysis shell. The present invention can automatically recover waste heat and reheat water vapor, and can automatically collect gas after electrolysis.

Description

Technical Field

[0001] The invention relates to the technical field of electrolyzers, and in particular to an energy-saving steam electrolyzer with a heat recovery structure. Background Art

[0002] Steam electrolyzer is a technology that uses water vapor to produce hydrogen by electrolysis, mainly through a solid oxide electrolysis cell at high temperature. This technology usually operates at a high temperature of 600 to 1000°C and can efficiently decompose water vapor into hydrogen and oxygen. Compared with traditional alkaline electrolyzers and proton exchange membrane electrolyzers, steam electrolyzers have higher energy efficiency.

[0003] The existing technology still has the following areas for improvement: the existing electrolytic cells can usually only heat water once at a high temperature to generate water vapor, and the water vapor is easily liquefied into water due to the decrease in temperature in the pipeline, resulting in a low water vapor content in the final transportation, which is not conducive to the subsequent electrolysis operation and leads to a decrease in the decomposition efficiency. In addition, the decomposed hydrogen and oxygen are easily mixed with the water vapor, and the water content in the collected gas is likely to become high. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides an energy-saving steam electrolyzer with a heat recovery structure, which can automatically recover waste heat and reheat the steam, and can automatically collect the gas after electrolysis.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An energy-saving steam electrolyzer with a heat recovery structure comprises a heating component, a waste heat component, an electrolysis component and a recovery component, which are connected in a circular manner in the order of the heating component, the waste heat component, the electrolysis component and the recovery component;

[0007] The electrolysis assembly comprises an electrolysis shell, a first electrode and a second electrode. The electrolysis shell is in a concave shape. The first electrode and the second electrode are both fixedly connected to the lower end of the inner part of the electrolysis shell. The first electrode and the second electrode are symmetrically located in the cavities on both sides of the electrolysis shell.

[0008] Furthermore, the heating assembly includes a heating shell, an air collecting plate and a water storage plate, the water storage plate is located below the heating shell, a plurality of connecting ports are evenly and fixedly provided on the upper end of the water storage plate, the upper ends of the plurality of connecting ports are fixedly connected to the lower end of the heating shell, a separation plate is fixedly provided on the upper end of the heating shell, the upper end of the separation plate is fixedly connected to the lower end of the air collecting plate, a plurality of filter holes are evenly distributed on the separation plate, and the plurality of filter holes are all trapezoidal structures.

[0009] Furthermore, a plurality of heating tubes are arranged inside the heating shell, and the plurality of heating tubes are all of annular structure, and each of the heating tubes is fixedly connected to the heating shell via a fixer.

[0010] Furthermore, a water inlet is fixedly provided at one end of the water storage tray, a water collection port is fixedly provided at the other end of the water storage tray, a water collection pipe is detachably provided on the water collection port, and a water pump is fixedly provided on the water collection pipe.

[0011] Furthermore, the waste heat assembly includes a fuel cylinder, an internal cylinder, a waste heat cover and an exhaust pipe, the internal cylinder is fixedly arranged inside the heating shell, the fuel cylinder is located inside the internal cylinder, a placement groove is fixedly arranged at the lower end of the fuel cylinder, the fuel cylinder is located in the middle position of the water storage tray, and a waste heat pipe is fixedly arranged at the upper end of the internal cylinder.

[0012] Furthermore, the outlet pipe is fixedly connected to one side of the gas collecting plate, the other end of the outlet pipe is fixedly connected to the middle depression of the electrolysis shell, the waste heat cover is located outside the outlet pipe, and one end of the waste heat pipe is connected to the waste heat cover.

[0013] Furthermore, the electrolytic assembly also includes a first collecting cover and a second collecting cover, the lower end of the first electrode is fixedly provided with a first connector, the upper end of the first electrode is fixedly connected to the first collecting cover, the lower end of the second electrode is fixedly provided with a second connector, and the upper end of the second electrode is fixedly connected to the second collecting cover.

[0014] Furthermore, the first connector and the second connector are connected via a power cord, a power interface is fixedly provided on the outer side of the electrolysis shell, the second connector and the power interface are connected via a power cord, and the first collection cover and the second collection cover are both provided with a plurality of air inlet holes, and the plurality of air inlet holes are parallel to each other.

[0015] Further, the recovery assembly includes a first gas delivery port, a second gas delivery port, a first gas storage shell and a second gas storage shell, the upper end of the first collection cover is fixedly connected to the first gas delivery port, the other end of the first gas delivery port is fixedly connected to the first gas storage shell, one side of the first gas storage shell is fixedly provided with a first gas outlet, the lower end of the first gas storage shell is fixedly provided with a first connecting pipe, and the first connecting pipe is fixedly provided with a first control valve;

[0016] The upper end of the second collecting cover is fixedly connected to the second gas delivery port, the other end of the second gas delivery port is fixedly connected to the second gas storage shell, a second gas outlet is fixedly provided on one side of the second gas storage shell, a second connecting pipe is fixedly provided at the lower end of the second gas storage shell, and a second control valve is fixedly provided on the second connecting pipe.

[0017] Furthermore, one end of the water collecting pipe is fixedly arranged at the outlet end of the tee, and the two inlet ends of the tee are respectively fixedly connected with the first connecting pipe and the second connecting pipe, and the upper ends of the first air storage shell and the second air storage shell are respectively fixedly arranged with a cooling shell, and a cooling pipe is fixedly arranged inside each of the cooling shells, and both ends of each of the cooling pipes are fixedly arranged on the circulator, and each of the cooling pipes is a spiral structure.

[0018] The beneficial effects of the present invention are:

[0019] (1) By setting the heating component and the waste heat component, the technical effect that can be achieved is that the water storage tray is located below the heating shell, the upper end of the water storage tray is evenly and fixedly provided with a plurality of communication ports, the plurality of communication ports are arranged in a circular array, the upper ends of the plurality of communication ports are all fixedly connected to the lower end of the heating shell, the upper end of the heating shell is fixedly provided with a separation tray, the upper end of the separation tray is fixedly connected to the lower end of the gas collecting tray, a plurality of filter holes are evenly distributed on the separation tray, the plurality of filter holes are all of a trapezoidal structure, and the plurality of filter holes are arranged in a circular array;

[0020] Start the heating tube. Due to the heating of the heating tube and the fuel cylinder, the water is heated and vaporized into water vapor. The water vapor is filtered through the filter holes on the separation disk and enters the gas collecting disk, and then enters the electrolysis shell through the outlet pipe. Waste heat gas is generated in the built-in cylinder due to the combustion of fuel. The waste heat gas enters the waste heat cover through the waste heat pipe, and the water vapor in the outlet pipe is reheated. The heating component and the waste heat component can automatically recover the waste heat and reheat the water vapor, thereby significantly improving the energy utilization efficiency and the overall performance of the system, reducing energy waste, promoting environmental sustainable development, and being more energy-saving and environmentally friendly.

[0021] (2) By setting up the electrolytic assembly, the technical effect that can be achieved is that the first connector and the second connector are connected through a power line, a power interface is fixedly provided on the outer side of the electrolytic shell, the second connector and the power interface are connected through a power line, and the first collection cover and the second collection cover are both provided with a plurality of air inlet holes, all of which are rectangular structures, and the plurality of air inlet holes are parallel to each other;

[0022] Water vapor enters the electrolysis shell, and enters the interior of the first collection cover and the second collection cover through the air inlet hole. The power interface is connected to an external power source, and the water vapor is electrolyzed through the first electrode and the second electrode. The electrolysis component can separately collect the two gases after electrolysis to prevent the two gases from mixing, facilitate direct collection, improve electrolysis efficiency, increase electrolysis output, and improve gas collection efficiency and purity.

[0023] (3) By setting up the recovery component, the technical effect that can be achieved is that one end of the water collecting pipe is fixedly set at the outlet end of the tee, the two inlet ends of the tee are respectively fixedly connected with the first connecting pipe and the second connecting pipe, the upper ends of the first gas storage shell and the second gas storage shell are respectively fixedly set with a cooling shell, each cooling shell is fixedly set with a cooling pipe inside, both ends of each cooling pipe are fixedly set on the circulator, each cooling pipe is a spiral structure, and there is coolant inside each cooling pipe;

[0024] Start the circulator, and the coolant in the cooling tube circulates to cool the first gas outlet and the second gas outlet, so that the mixed small amount of water vapor is cooled and liquefied into water, which is transported back to the water storage tray. The recovery component can separate and collect the water vapor in the gas, so that the water content of the gas is lower and the purity is higher. The separated water vapor can be cooled again and returned to the heating component for reheating and electrolysis, which is more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a front view of the present invention;

[0027] Figure 2 It is a front cross-sectional view of the present invention;

[0028] Figure 3 It is a front cross-sectional view of the heating component and the residual heat component in the present invention;

[0029] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0030] Figure 5 for Figure 3 A partial enlarged view of B in the middle;

[0031] Figure 6 for Figure 3 A partial enlarged view of middle C;

[0032] Figure 7 A top sectional view of the heating assembly of the present invention;

[0033] Figure 8 is a top view of the separation disk of the present invention;

[0034] Fig. 9 It is a front cross-sectional view of the heating tube in the present invention;

[0035] Fig.10 It is a front cross-sectional view of the electrolysis component and the recovery component in the present invention;

[0036] Fig.11 for Fig.10 A partial enlarged view of D in the middle;

[0037] Fig.12 is a front cross-sectional view of the electrolytic component of the present invention;

[0038] Fig.13 It is a front view of the first collecting cover in the present invention;

[0039] Description of reference numerals:

[0040] In the figure: 1, heating assembly; 11, air collecting plate; 12, heating shell; 13, water inlet; 14, water storage plate; 15, separation plate; 16, filter hole; 17, heating pipe; 18, water collecting pipe; 19, water collecting port; 110, water pump; 111, fixer; 112, connecting port;

[0041] 2. Waste heat assembly; 21. Waste heat pipe; 22. Waste heat cover; 23. Exhaust pipe; 24. Fuel cylinder; 25. Placement slot; 26. Internal cylinder;

[0042] 3. Electrolytic assembly; 31. First collecting cover; 32. First electrode; 33. Power interface; 34. First connector; 35. Power cord; 36. Electrolytic shell; 37. Second connector; 38. Second electrode; 39. Second collecting cover; 310. Air inlet;

[0043] 4. Recovery component; 41. First gas transmission port; 42. Cooling shell; 43. First gas outlet; 44. First gas storage shell; 45. First control valve; 46. First connecting pipe; 47. Second connecting pipe; 48. Three-way device; 49. Second control valve; 410. Second gas storage shell; 411. Second gas outlet; 412. Second gas transmission port; 413. Cooling pipe; 414. Circulator. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] Reference Figures 1 to 13 , is an energy-saving steam electrolyzer with a heat recovery structure disclosed in the present invention, comprising a heating component 1, a waste heat component 2, an electrolysis component 3 and a recovery component 4, which are connected in a cycle in the order of the heating component 1, the waste heat component 2, the electrolysis component 3 and the recovery component 4.

[0048] The electrolytic assembly 3 includes an electrolytic shell 36, a first electrode 32 and a second electrode 38. The electrolytic shell 36 is a concave structure. The first electrode 32 and the second electrode 38 are both fixedly connected to the lower end of the inner part of the electrolytic shell 36. The first electrode 32 and the second electrode 38 are symmetrically located in the cavities on both sides of the electrolytic shell 36.

[0049] The heating assembly 1 includes a heating shell 12, an air collecting plate 11 and a water storage plate 14. The water storage plate 14 is located below the heating shell 12. A plurality of connecting ports 112 are evenly and fixedly arranged on the upper end of the water storage plate 14. The plurality of connecting ports 112 are arranged in a circular array. The upper ends of the plurality of connecting ports 112 are all fixedly connected to the lower end of the heating shell 12. A separation plate 15 is fixedly arranged on the upper end of the heating shell 12. The upper end of the separation plate 15 is fixedly connected to the lower end of the air collecting plate 11. A plurality of filter holes 16 are evenly distributed on the separation plate 15. The plurality of filter holes 16 are all of a trapezoidal structure. The plurality of filter holes 16 are arranged in a circular array.

[0050] Four heating tubes 17 are arranged inside the heating shell 12 . The four heating tubes 17 are all annular structures. Each heating tube 17 is fixedly connected to the heating shell 12 via a fixer 111 .

[0051] A water inlet 13 is fixedly provided at one end of the water storage pan 14 , a water collection port 19 is fixedly provided at the other end of the water storage pan 14 , a water collection pipe 18 is detachably provided on the water collection port 19 , and a water pump 110 is fixedly provided on the water collection pipe 18 .

[0052] The waste heat assembly 2 includes a fuel cylinder 24, an internal cylinder 26, a waste heat cover 22 and an exhaust pipe 23. The internal cylinder 26 is fixedly arranged inside the heating shell 12. The fuel cylinder 24 is located inside the internal cylinder 26. A placement groove 25 is fixedly arranged at the lower end of the fuel cylinder 24. The fuel cylinder 24 is located in the middle position of the water storage tray 14. A waste heat pipe 21 is fixedly arranged at the upper end of the internal cylinder 26.

[0053] An outlet pipe 23 is fixedly connected to one side of the gas collecting plate 11 , and the other end of the outlet pipe 23 is fixedly connected to the middle depression of the electrolysis shell 36 . The waste heat cover 22 is located outside the outlet pipe 23 , and one end of the waste heat pipe 21 is connected to the waste heat cover 22 .

[0054] The heating component 1 and the waste heat component 2 can automatically recover waste heat and reheat the water vapor, thereby significantly improving energy utilization efficiency and the overall performance of the system, reducing energy waste, promoting sustainable environmental development, and being more energy-saving and environmentally friendly.

[0055] The electrolytic assembly 3 also includes a first collecting cover 31 and a second collecting cover 39. The first connector 34 is fixedly provided at the lower end of the first electrode 32, the first collecting cover 31 is fixedly connected to the upper end of the first electrode 32, the second connector 37 is fixedly provided at the lower end of the second electrode 38, and the second collecting cover 39 is fixedly connected to the upper end of the second electrode 38.

[0056] The first connector 34 and the second connector 37 are connected via a power cord 35, a power interface 33 is fixedly provided on the outer side of the electrolysis shell 36, the second connector 37 and the power interface 33 are connected via a power cord 35, and a plurality of air inlet holes 310 are provided on the first collection cover 31 and the second collection cover 39, and the plurality of air inlet holes 310 are all rectangular structures, and the plurality of air inlet holes 310 are parallel to each other.

[0057] The electrolysis component 3 can collect the two gases after electrolysis separately, prevent the two gases from mixing, facilitate direct collection, improve electrolysis efficiency, increase electrolysis output, and improve gas collection efficiency and purity.

[0058] The recovery component 4 includes a first gas delivery port 41, a second gas delivery port 412, a first gas storage shell 44 and a second gas storage shell 410. The upper end of the first collecting cover 31 is fixedly connected to the first gas delivery port 41, and the other end of the first gas delivery port 41 is fixedly connected to the first gas storage shell 44. A first gas outlet 43 is fixedly provided on one side of the first gas storage shell 44, and a first connecting pipe 46 is fixedly provided at the lower end of the first gas storage shell 44, and a first control valve 45 is fixedly provided on the first connecting pipe 46.

[0059] The upper end of the second collecting hood 39 is fixedly connected to the second gas delivery port 412, the other end of the second gas delivery port 412 is fixedly connected to the second gas storage shell 410, a second gas outlet 411 is fixedly provided on one side of the second gas storage shell 410, a second connecting pipe 47 is fixedly provided at the lower end of the second gas storage shell 410, and a second control valve 49 is fixedly provided on the second connecting pipe 47.

[0060] One end of the water collecting pipe 18 is fixedly set at the outlet end of the tee 48, and the two inlet ends of the tee 48 are respectively fixedly connected with the first connecting pipe 46 and the second connecting pipe 47. The upper ends of the first air storage shell 44 and the second air storage shell 410 are respectively fixedly set with a cooling shell 42, and a cooling pipe 413 is fixedly set inside each cooling shell 42. Both ends of each cooling pipe 413 are fixedly set on the circulator 414. Each cooling pipe 413 is a spiral structure, and there is coolant inside each cooling pipe 413.

[0061] The recovery component 4 can separate and collect water vapor in the gas, making the water content of the gas lower and the purity higher. The separated water vapor can be re-cooled and returned to the heating component 1 for re-heating and electrolysis, which is more energy-efficient.

[0062] The first electrode 32 is a positive electrode, and the second electrode 38 is a negative electrode.

[0063] The working principle and use process of the present invention are as follows: the water inlet 13 is connected to the water tank, fuel is put into the fuel cylinder 24, water enters the water storage tray 14, enters between the built-in cylinder 26 and the heating shell 12 through the connecting port 112, and the heating tube 17 is started. Due to the heating of the heating tube 17 and the fuel cylinder 24, the water is heated and vaporized into water vapor. The water vapor is filtered through the filter holes 16 on the separation disk 15 and enters the gas collecting disk 11, and enters the electrolysis shell 36 through the gas outlet pipe 23;

[0064] The waste heat gas is generated in the inner cylinder 26 due to the combustion of fuel. The waste heat gas enters the waste heat cover 22 through the waste heat pipe 21 and performs secondary heating on the water vapor in the outlet pipe 23.

[0065] The water vapor enters the electrolysis shell 36, and enters the first collection cover 31 and the second collection cover 39 through the air inlet 310. The power interface 33 is connected to an external power source, and the water vapor is electrolyzed through the first electrode 32 and the second electrode 38.

[0066] The first electrode 32 is a positive electrode. After decomposition, the generated oxygen moves to the first gas storage shell 44 through the first gas delivery port 41. The circulator 414 is started, and the coolant in the cooling pipe 413 circulates to cool the first gas delivery port 41, so that a small amount of water vapor mixed in the oxygen is cooled and liquefied into water. The water flows into the first connecting pipe 46 through the first control valve 45, and the oxygen can be collected through the first gas outlet 43.

[0067] The second electrode 38 is a negative electrode. After decomposition, the generated hydrogen moves to the second gas storage shell 410 through the second gas delivery port 412. The circulator 414 is started, and the coolant in the cooling pipe 413 circulates to cool the second gas delivery port 412, so that a small amount of water vapor mixed in the oxygen is cooled and liquefied into water. The water flows into the second connecting pipe 47 through the second control valve 49, and the hydrogen can be collected through the second gas outlet 411.

[0068] After the collection of oxygen and hydrogen is completed, the water pump 110 is turned on, and the water in the first connecting pipe 46 and the second connecting pipe 47 is moved to the water collecting pipe 18 through the tee 48 and transported back to the water storage tray 14 .

[0069] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An energy-saving steam electrolyzer with a heat recovery structure, characterized in that: It comprises a heating component (1), a waste heat component (2), an electrolysis component (3) and a recovery component (4), which are connected in a circular manner in the order of the heating component (1), the waste heat component (2), the electrolysis component (3) and the recovery component (4); The electrolysis assembly (3) comprises an electrolysis shell (36), a first electrode (32) and a second electrode (38); the electrolysis shell (36) is in a concave shape; the first electrode (32) and the second electrode (38) are both fixedly connected to the lower end of the inside of the electrolysis shell (36); the first electrode (32) and the second electrode (38) are respectively and symmetrically located in cavities on both sides of the electrolysis shell (36); The waste heat assembly (2) comprises a fuel cylinder (24), an internal cylinder (26), a waste heat cover (22) and an air outlet pipe (23); the internal cylinder (26) is fixedly arranged inside the heating shell (12); the fuel cylinder (24) is located inside the internal cylinder (26); a placement groove (25) is fixedly arranged at the lower end of the fuel cylinder (24); the fuel cylinder (24) is located at the middle position of the water storage tray (14); a waste heat pipe (21) is fixedly arranged at the upper end of the internal cylinder (26); and the other end of the air outlet pipe (23) is fixedly connected to a recessed position in the middle of the electrolysis shell (36); The heating assembly (1) comprises a heating shell (12), an air collecting plate (11) and a water storage plate (14); the water storage plate (14) is located below the heating shell (12); a plurality of communication ports (112) are evenly and fixedly arranged at the upper end of the water storage plate (14); the upper ends of the plurality of communication ports (112) are all fixedly connected to the lower end of the heating shell (12); a separation plate (15) is fixedly arranged at the upper end of the heating shell (12); the upper end of the separation plate (15) is fixedly connected to the lower end of the air collecting plate (11); a plurality of filter holes (16) are evenly distributed on the separation plate (15); the plurality of filter holes (16) are all of a trapezoidal structure; A plurality of heating tubes (17) are arranged inside the heating shell (12); the plurality of heating tubes (17) are all of annular structure; and each heating tube (17) is fixedly connected to the heating shell (12) via a fixer (111).

2. The energy-saving steam electrolyzer with a heat recovery structure according to claim 1, characterized in that: A water inlet (13) is fixedly provided at one end of the water storage tray (14), a water collection port (19) is fixedly provided at the other end of the water storage tray (14), a water collection pipe (18) is detachably provided on the water collection port (19), and a water pump (110) is fixedly provided on the water collection pipe (18).

3. The energy-saving steam electrolyzer with a heat recovery structure according to claim 1, characterized in that: The air outlet pipe (23) is fixedly connected to one side of the air collecting plate (11), the residual heat cover (22) is located outside the air outlet pipe (23), and one end of the residual heat pipe (21) is connected to the residual heat cover (22).

4. The energy-saving steam electrolyzer with a heat recovery structure according to claim 2, characterized in that: The electrolytic assembly (3) further comprises a first collecting hood (31) and a second collecting hood (39); a first connector (34) is fixedly provided at the lower end of the first electrode (32); the first collecting hood (31) is fixedly connected to the upper end of the first electrode (32); a second connector (37) is fixedly provided at the lower end of the second electrode (38); and the second collecting hood (39) is fixedly connected to the upper end of the second electrode (38).

5. The energy-saving steam electrolyzer with a heat recovery structure according to claim 4, characterized in that: The first connector (34) and the second connector (37) are connected via a power line (35); a power interface (33) is fixedly provided on the outer side of the electrolysis shell (36); the second connector (37) and the power interface (33) are connected via a power line (35); and a plurality of air inlet holes (310) are provided on the first collection cover (31) and the second collection cover (39); the plurality of air inlet holes (310) are parallel to each other.

6. The energy-saving steam electrolyzer with a heat recovery structure according to claim 4, characterized in that: The recovery assembly (4) comprises a first gas delivery port (41), a second gas delivery port (412), a first gas storage shell (44) and a second gas storage shell (410); the upper end of the first collection cover (31) is fixedly connected to the first gas delivery port (41); the other end of the first gas delivery port (41) is fixedly connected to the first gas storage shell (44); a first gas outlet (43) is fixedly provided on one side of the first gas storage shell (44); a first connecting pipe (46) is fixedly provided at the lower end of the first gas storage shell (44); and a first control valve (45) is fixedly provided on the first connecting pipe (46); The upper end of the second collecting hood (39) is fixedly connected to the second gas delivery port (412), the other end of the second gas delivery port (412) is fixedly connected to the second gas storage shell (410), a second gas outlet (411) is fixedly provided on one side of the second gas storage shell (410), a second connecting pipe (47) is fixedly provided at the lower end of the second gas storage shell (410), and a second control valve (49) is fixedly provided on the second connecting pipe (47).

7. The energy-saving steam electrolyzer with a heat recovery structure according to claim 6, characterized in that: One end of the water collecting pipe (18) is fixedly arranged at the outlet end of the tee (48), and the two inlet ends of the tee (48) are respectively fixedly connected to the first connecting pipe (46) and the second connecting pipe (47), and the upper ends of the first gas storage shell (44) and the second gas storage shell (410) are respectively fixedly arranged with a cooling shell (42), and a cooling pipe (413) is fixedly arranged inside each cooling shell (42), and both ends of each cooling pipe (413) are fixedly arranged on the circulator (414), and each cooling pipe (413) is a spiral structure.

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