Energy-saving water vapor electrolyzer having heat recovery structure

Abstract

The present invention relates to the technical field of electrolyzers, and specifically disclosed is an energy-saving water vapor electrolyzer having a heat recovery structure, comprising a heating assembly, a waste heat assembly, an electrolysis assembly, and a recovery assembly, which are cyclically connected in the sequence of the heating assembly, the waste heat assembly, the electrolysis assembly, and the recovery assembly. The electrolysis assembly comprises an electrolysis housing, a first electrode, and a second electrode. The electrolysis housing has the structure of a Chinese character "凹". The first electrode and the second electrode are both fixedly connected to the lower inner portion of the electrolysis housing. The first electrode and the second electrode are symmetrically located in cavities on two sides of the electrolysis housing, respectively. In the present invention, waste heat recovery can be automatically performed and secondary heating can be performed on water vapor, and gas after electrolysis can be automatically collected separately.

Description

An energy-saving steam electrolyzer with a heat recovery structure Technical Field

[0001] This invention relates to the technical field of electrolytic cells, and more specifically to an energy-saving steam electrolytic cell with a heat recovery structure. Background Technology

[0002] A steam electrolyzer is a technology that uses steam to produce hydrogen, primarily through a high-temperature solid oxide electrolyzer. This technology typically operates at temperatures between 600 and 1000°C, efficiently decomposing steam into hydrogen and oxygen. Compared to traditional alkaline electrolyzers and proton exchange membrane electrolyzers, steam electrolyzers offer higher energy efficiency.

[0003] The existing technology still has the following areas for improvement: Existing electrolyzers can usually only heat water to a high temperature once to generate water vapor. The water vapor is easy to liquefy into water in the pipeline due to the temperature drop, resulting in a low water vapor content in the final transport, which is not conducive to the subsequent electrolysis operation, leading to a decrease in decomposition efficiency. In addition, the decomposed hydrogen and oxygen are easy to mix with water vapor, and the water content in the collected gas is easy to increase. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this invention provides an energy-saving steam electrolysis cell with a heat recovery structure, which can automatically recover waste heat and reheat steam, and can automatically collect the gases after electrolysis.

[0005] The objective of this invention can be achieved through the following technical solutions:

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

[0007] The electrolysis assembly includes an electrolysis shell, a first electrode, and a second electrode. The electrolysis shell has a U-shaped structure. The first electrode and the second electrode are both fixedly connected to the lower end of the interior 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, a gas collecting plate, and a water storage plate. The water storage plate is located below the heating shell. Multiple communication ports are uniformly fixedly arranged on the upper end of the water storage plate. The upper ends of the multiple communication ports are all fixedly connected to the lower end of the heating shell. A separation plate is fixedly arranged on the upper end of the heating shell. The upper end of the separation plate is fixedly connected to the lower end of the gas collecting plate. Multiple filter holes are uniformly distributed on the separation plate, and the multiple filter holes are trapezoidal structures.

[0009] Furthermore, the heating housing is provided with multiple heating tubes, each of which is a ring structure, and each heating tube is fixedly connected to the heating housing by a fixture.

[0010] Furthermore, a water inlet is fixedly provided at one end of the water storage pan, and a water collection port is fixedly provided at the other end of the water storage pan. 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 inner cylinder, a waste heat cover, and an exhaust pipe. The inner cylinder is fixedly disposed inside the heating shell, the fuel cylinder is located inside the inner cylinder, a placement groove is fixedly disposed at the lower end of the fuel cylinder, the fuel cylinder is located at the middle position of the water storage pan, and a waste heat pipe is fixedly disposed at the upper end of the inner cylinder.

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

[0013] Furthermore, the electrolysis assembly also includes a first collecting cover and a second collecting cover. A first connector is fixedly disposed at the lower end of the first electrode, and the first collecting cover is fixedly connected to the upper end of the first electrode. A second connector is fixedly disposed at the lower end of the second electrode, and the second collecting cover is fixedly connected to the upper end of the second electrode.

[0014] Furthermore, the first connector and the second connector are connected by a power cord, and a power interface is fixedly provided on the outside of the electrolytic shell. The second connector and the power interface are connected by a power cord. Both the first collection cover and the second collection cover are provided with multiple air inlets, and the multiple air inlets are parallel to each other.

[0015] Furthermore, the recovery assembly includes a first gas inlet, a second gas inlet, 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 inlet, the other end of the first gas inlet is fixedly connected to the first gas storage shell, a first gas outlet is fixedly provided on one side of the first gas storage shell, a first connecting pipe is fixedly provided at the lower end of the first gas storage shell, and a first control valve is fixedly provided on the first connecting pipe.

[0016] The upper end of the second collection hood is fixedly connected to the second air inlet, the other end of the second air inlet is fixedly connected to the second air storage shell, a second air outlet is fixedly provided on one side of the second air storage shell, a second connecting pipe is fixedly provided at the lower end of the second air storage shell, and a second control valve is fixedly provided on the second connecting pipe.

[0017] Furthermore, one end of the water collection pipe is fixedly installed at the outlet end of the three-way valve, and the two inlet ends of the three-way valve are respectively fixedly connected to the first connecting pipe and the second connecting pipe. A cooling shell is fixedly installed at the upper end of the first gas storage shell and the second gas storage shell, and a cooling pipe is fixedly installed inside each cooling shell. Both ends of each cooling pipe are fixedly installed on the circulator, and each cooling pipe has a spiral structure.

[0018] The beneficial effects of this invention are as follows:

[0019] (1) By setting up heating components and waste heat components, the technical effect that can be achieved is that the water storage pan is located below the heating shell, the upper end of the water storage pan is uniformly fixed with multiple connecting ports, the multiple connecting ports are arranged in a circular array, the upper ends of the multiple connecting ports are fixedly connected to the lower end of the heating shell, the upper end of the heating shell is fixedly set with a separation plate, the upper end of the separation plate is fixedly connected to the lower end of the gas collecting plate, the separation plate is uniformly distributed with multiple filter holes, the multiple filter holes are all trapezoidal structures, and the multiple filter holes are arranged in a circular array.

[0020] When the heating element is activated, the water vaporizes into steam due to the heating of the heating element and fuel cylinder. The steam is filtered through the filter holes on the separator plate and enters the gas collection plate. It then enters the electrolysis shell through the gas outlet pipe. Inside the inner cylinder, waste heat gas is generated due to fuel combustion. This waste heat gas enters the waste heat hood through the waste heat pipe, where it reheats the steam in the gas outlet pipe. The heating and waste heat components can automatically recover waste heat and reheat the steam, thereby significantly improving energy utilization efficiency and overall system performance, reducing energy waste, promoting environmental sustainability, and making the system more energy-efficient and environmentally friendly.

[0021] (2) By setting up the electrolysis assembly, the technical effect that can be achieved is that the first connector and the second connector are connected by a power line, a power interface is fixedly set on the outside of the electrolysis shell, the second connector and the power interface are connected by a power line, and multiple air inlets are opened on the first collection cover and the second collection cover. The multiple air inlets are rectangular in structure and are parallel to each other.

[0022] Water vapor enters the electrolysis shell and enters the interior of the first and second collection hoods through the air inlet. An external power supply is connected to the power interface. The water vapor is electrolyzed through the first and second electrodes. The electrolysis assembly can collect the two gases after electrolysis separately, preventing the two gases from mixing, facilitating direct collection, improving electrolysis efficiency, increasing electrolysis yield, and improving the efficiency and purity of gas collection.

[0023] (3) By setting up the recycling component, the technical effect that can be achieved is that one end of the water collection pipe is fixedly set at the outlet end of the three-way valve, the two inlet ends of the three-way valve are respectively fixedly connected to 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, each cooling pipe is fixedly set at both ends on the circulator, each cooling pipe is a spiral structure, and each cooling pipe contains coolant inside;

[0024] The circulator is started, and the coolant in the cooling pipe circulates to cool the first and second gas inlets, causing the small amount of mixed water vapor to liquefy into water and be transported back to the water storage pan. The recovery component can separate and collect water vapor in the gas, making the gas have a lower water content and higher purity. The separated water vapor can be cooled again and returned to the heating component for reheating and electrolysis, which is more energy-efficient. Attached Figure Description

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

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

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

[0028] Figure 3 is a front sectional view of the heating component and the waste heat component in this invention;

[0029] Figure 4 is a magnified view of part A in Figure 3;

[0030] Figure 5 is a magnified view of part B in Figure 3;

[0031] Figure 6 is a magnified view of part C in Figure 3;

[0032] Figure 7 is a top sectional view of the heating component in this invention;

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

[0034] Figure 9 is a front sectional view of the heating tube in this invention;

[0035] Figure 10 is a front sectional view of the electrolysis component and the recycling component in this invention;

[0036] Figure 11 is a magnified view of part D in Figure 10;

[0037] Figure 12 is a front sectional view of the electrolysis assembly in this invention;

[0038] Figure 13 is a front view of the first collection hood in this invention;

[0039] Explanation of reference numerals in the attached figures:

[0040] In the diagram: 1. Heating assembly; 11. Gas collection plate; 12. Heating housing; 13. Water inlet; 14. Water storage plate; 15. Separation plate; 16. Filter hole; 17. Heating tube; 18. Water collection pipe; 19. Water collection port; 110. Water pump; 111. Fixture; 112. Connecting port;

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

[0042] 3. Electrolysis assembly; 31. First collection shroud; 32. First electrode; 33. Power interface; 34. First connector; 35. Power cord; 36. Electrolysis housing; 37. Second connector; 38. Second electrode; 39. Second collection shroud; 310. Air inlet;

[0043] 4. Recovery component; 41. First air inlet; 42. Cooling housing; 43. First air outlet; 44. First air storage housing; 45. First control valve; 46. First connecting pipe; 47. Second connecting pipe; 48. Three-way valve; 49. Second control valve; 410. Second air storage housing; 411. Second air outlet; 412. Second air inlet; 413. Cooling pipe; 414. Circulator. Detailed Implementation

[0044] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] Referring to Figures 1 to 13, an energy-saving steam electrolyzer with a heat recovery structure disclosed in this invention includes a heating component 1, a waste heat component 2, an electrolysis component 3, and a recovery component 4, which are connected in a cyclical manner in the order of heating component 1, waste heat component 2, electrolysis component 3, and recovery component 4.

[0048] The electrolysis assembly 3 includes an electrolysis shell 36, a first electrode 32, and a second electrode 38. The electrolysis shell 36 has a U-shaped structure. The first electrode 32 and the second electrode 38 are both fixedly connected to the lower end of the interior of the electrolysis shell 36. The first electrode 32 and the second electrode 38 are symmetrically located in the cavities on both sides of the electrolysis shell 36.

[0049] The heating assembly 1 includes a heating shell 12, a gas collecting plate 11, and a water storage plate 14. The water storage plate 14 is located below the heating shell 12. Multiple connecting ports 112 are uniformly fixedly arranged on the upper end of the water storage plate 14. The multiple connecting ports 112 are arranged in a circular array. The upper ends of the multiple 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 gas collecting plate 11. Multiple filter holes 16 are uniformly distributed on the separation plate 15. The multiple filter holes 16 are all trapezoidal structures and are arranged in a circular array.

[0050] The heating housing 12 has four heating tubes 17 inside. All four heating tubes 17 are circular ring structures, and each heating tube 17 is fixedly connected to the heating housing 12 by a retainer 111.

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

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

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

[0054] Heating component 1 and waste heat component 2 can automatically recover waste heat and reheat water vapor, thereby significantly improving energy utilization efficiency and overall system performance, reducing energy waste, promoting environmental sustainability, and being more energy-efficient and environmentally friendly.

[0055] The electrolysis assembly 3 also includes a first collection cover 31 and a second collection cover 39. A first connector 34 is fixedly provided at the lower end of the first electrode 32, and the first collection cover 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 collection 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 by a power cable 35. A power interface 33 is fixedly provided on the outside of the electrolytic shell 36. The second connector 37 and the power interface 33 are connected by a power cable 35. Multiple air inlets 310 are provided on both the first collection cover 31 and the second collection cover 39. The multiple air inlets 310 are rectangular and parallel to each other.

[0057] Electrolysis component 3 can collect the two gases after electrolysis separately, preventing the two gases from mixing, facilitating direct collection, improving electrolysis efficiency, increasing electrolysis yield, and improving the efficiency and purity of gas collection.

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

[0059] The upper end of the second collection hood 39 is fixedly connected to the second air inlet 412, the other end of the second air inlet 412 is fixedly connected to the second air storage shell 410, the second air outlet 411 is fixedly provided on one side of the second air storage shell 410, the lower end of the second air storage shell 410 is fixedly provided with the second connecting pipe 47, and the second control valve 49 is fixedly provided on the second connecting pipe 47.

[0060] One end of the water collection pipe 18 is fixedly installed at the outlet end of the three-way valve 48. The two inlet ends of the three-way valve 48 are respectively fixedly connected to the first connecting pipe 46 and the second connecting pipe 47. The upper ends of the first gas storage shell 44 and the second gas storage shell 410 are respectively fixedly installed with a cooling shell 42. Each cooling shell 42 is fixedly installed with a cooling pipe 413 inside. Both ends of each cooling pipe 413 are fixedly installed on the circulator 414. Each cooling pipe 413 has a spiral structure and contains coolant inside each cooling pipe 413.

[0061] The recovery component 4 can separate water vapor from the collected gas, making the gas have a lower water content and higher purity. The separated water vapor can be cooled again and returned to the heating component 1 for reheating and electrolysis, which is more energy-efficient.

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

[0063] The working principle and usage process of this invention: the water inlet 13 is connected to the water tank, fuel is put into the fuel cylinder 24, water enters the water storage pan 14, and enters the space between the inner cylinder 26 and the heating shell 12 through the connecting port 112. The heating tube 17 is activated. 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 hole 16 on the separation plate 15 and enters the gas collecting plate 11. It enters the electrolysis shell 36 through the gas outlet pipe 23.

[0064] Waste heat gas is generated inside the built-in cylinder 26 due to fuel combustion. The waste heat gas enters the waste heat cover 22 through the waste heat pipe 21 to reheat the water vapor in the outlet pipe 23.

[0065] Water vapor enters the electrolysis shell 36 and enters the interior of the first collection hood 31 and the second collection hood 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 the positive electrode. After decomposition, the generated oxygen moves to the first gas storage shell 44 through the first gas inlet 41. The circulator 414 is started, and the coolant in the cooling pipe 413 circulates to cool the first gas inlet 41, so that the 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 oxygen can be collected through the first gas outlet 43.

[0067] The second electrode 38 is the negative electrode. After decomposition, the hydrogen gas generated moves through the second gas inlet 412 to the second gas storage shell 410. The circulator 414 is started, and the coolant in the cooling pipe 413 circulates to cool the second gas inlet 412, so that the 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 hydrogen gas 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 collection pipe 18 through the three-way valve 48 and transported back to the water storage pan 14.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An energy-saving steam electrolysis cell with a heat recovery structure, characterized in that: It includes a heating component (1), a waste heat component (2), an electrolysis component (3), and a recovery component (4), which are connected in a cyclical 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) includes an electrolysis shell (36), a first electrode (32), and a second electrode (38). The electrolysis shell (36) has a U-shaped structure. The first electrode (32) and the second electrode (38) are both fixedly connected to the lower end of the interior of the electrolysis shell (36). The first electrode (32) and the second electrode (38) are respectively symmetrically located in the cavities on both sides of the electrolysis shell (36). The waste heat assembly (2) includes a fuel cylinder (24), an inner cylinder (26), a waste heat cover (22), and an exhaust pipe (23). The inner cylinder (26) is fixedly installed inside the heating shell (12). The fuel cylinder (24) is located inside the inner cylinder (26). A placement groove (25) is fixedly installed at the lower end of the fuel cylinder (24). The fuel cylinder (24) is located in the middle of the water storage pan (14). A waste heat pipe (21) is fixedly installed at the upper end of the inner cylinder (26). The other end of the exhaust pipe (23) is fixedly connected to the middle recess of the electrolysis shell (36).

2. The energy-saving steam electrolyzer with a heat recovery structure according to claim 1, characterized in that: The heating assembly (1) includes a heating shell (12), a gas 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 uniformly fixedly arranged on the upper end of the water storage plate (14). 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 gas collecting plate (11). A plurality of filter holes (16) are uniformly distributed on the separation plate (15). The plurality of filter holes (16) are all trapezoidal structures.

3. The energy-saving steam electrolyzer with a heat recovery structure according to claim 2, characterized in that: The heating housing (12) is provided with a plurality of heating tubes (17), each of which is a ring structure, and each heating tube (17) is fixedly connected to the heating housing (12) by a fixture (111).

4. The energy-saving steam electrolyzer with a heat recovery structure according to claim 2, characterized in that: One end of the water storage pan (14) is fixedly provided with a water inlet (13), and the other end of the water storage pan (14) is fixedly provided with a water collection port (19). 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).

5. An energy-saving steam electrolyzer with a heat recovery structure according to claim 2, characterized in that: The gas collection plate (11) is fixedly connected to one side of the gas outlet pipe (23), the waste heat cover (22) is located outside the gas outlet pipe (23), and one end of the waste heat pipe (21) is connected to the waste heat cover (22).

6. An energy-saving steam electrolyzer with a heat recovery structure according to claim 4, characterized in that: The electrolysis assembly (3) further includes a first collection cover (31) and a second collection cover (39). A first connector (34) is fixedly provided at the lower end of the first electrode (32), and the first collection cover (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 collection cover (39) is fixedly connected to the upper end of the second electrode (38).

7. An energy-saving steam electrolyzer with a heat recovery structure according to claim 6, characterized in that: The first connector (34) and the second connector (37) are connected by a power cord (35). A power interface (33) is fixedly provided on the outside of the electrolytic shell (36). The second connector (37) and the power interface (33) are connected by a power cord (35). The first collection cover (31) and the second collection cover (39) are each provided with a plurality of air inlets (310), and the plurality of air inlets (310) are parallel to each other.

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

9. An energy-saving steam electrolyzer with a heat recovery structure according to claim 8, characterized in that: One end of the water collection pipe (18) is fixedly installed at the outlet end of the three-way valve (48). The two inlet ends of the three-way valve (48) are respectively fixedly connected to the first connecting pipe (46) and the second connecting pipe (47). A cooling shell (42) is fixedly installed at the upper end of the first gas storage shell (44) and the second gas storage shell (410). A cooling pipe (413) is fixedly installed inside each cooling shell (42). Both ends of each cooling pipe (413) are fixedly installed on the circulator (414). Each cooling pipe (413) has a spiral structure.

Images