A high-efficiency stable-flow steam generator structure for hydrogen production by SOEC electrolysis

Abstract

This invention discloses a high-efficiency, stable-flow steam generator structure for SOEC electrolysis hydrogen production, relating to the technical field of electrolysis hydrogen production equipment. The structure includes a shell, a heat source pipe connected to an external heat source on the outer side of the shell, a liquid storage tank connected to the bottom of the shell, and a material cylinder connected to the top of the shell, with a material pipe connected to the outer side of the material cylinder. An upper cover and a lower cover are sequentially arranged from top to bottom on the outer side of the material cylinder, and a pressing assembly for electrolyte distribution is installed inside the material cylinder. The invention also includes a dual-head motor embedded between the material cylinder and the upper cover, and a main bevel gear mounted on one output shaft of the dual-head motor. Based on the condition of waste heat recycling, this invention employs a combination of thorough material distribution and triggered flow stabilization to achieve uniform heating of the electrolyte within the steam generator tube bundle, solving the problems of waste heat waste and high evaporation energy consumption.

Description

Technical Field

[0001] This invention relates to the field of electrolytic hydrogen production equipment technology, and in particular to a structure of a high-efficiency steady-flow steam generator for SOEC electrolytic hydrogen production. Background Technology

[0002] SOEC works by electrolyzing water vapor at high temperatures (650-850℃) to produce hydrogen. Based on the type of charge conducted by the electrolyte, SOEC can be divided into oxygen ion-conducting SOEC and proton-conducting SOEC. Based on the structure, SOEC can also be divided into flat-plate and tubular SOEC. The steam generator is an essential component in the SOEC electrolysis hydrogen production process. Its main function is to heat the SOEC electrolyte into steam, thereby accelerating the SOEC electrolysis hydrogen production process.

[0003] For the steam generator used in the SOEC electrolysis hydrogen production process, after the heat generated inside is used up, a small amount of residual heat can be recovered and reused, or even the residual heat can be directly discharged, resulting in the waste of heat energy accumulated by the residual heat, increasing the energy consumption of the steam generator. Furthermore, during the recovery and reuse of a small amount of heat source, turbulence is also likely to occur in the steam generator, leading to uneven heating of the electrolyte inside, which is not worth the effort. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structures, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to achieve uniform heating of the electrolyte in the steam generator tube bundle under the condition of waste heat recycling and utilization, by using a combination of full-filling and trigger-stabilized flow, while the waste heat energy is wasted and the evaporation energy consumption is high.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-efficiency steady-flow steam generator structure for SOEC electrolysis hydrogen production, comprising a shell, a heat source pipe connected to an external heat source on the outer side of the shell, a liquid storage tank connected to the bottom end of the shell, a material cylinder connected to the top end of the shell, and a material pipe connected to the outer side of the material cylinder; and, an upper cover and a lower cover are arranged sequentially from top to bottom on the outer side of the material cylinder, and a pressing assembly for distributing electrolyte is arranged inside the material cylinder, and includes a double-headed motor embedded between the material cylinder and the upper cover, and a main bevel gear sleeved on one output shaft of the double-headed motor.

[0008] Furthermore, the outer end of the liquid reservoir is provided with a recovery component and a supply component for synchronous heating of the outer shell and the barrel, and includes a recovery pipe connected to the outer end of the liquid reservoir, a compressor fan for high-speed compression of waste heat, and a jacketed cavity opened in the barrel; and the upper and lower covers are respectively provided with a trigger component and a regulating component for waste heat turbulence, and include a trigger embedded on the outside of the upper cover.

[0009] As a preferred embodiment of the SOEC electrolytic hydrogen production high-efficiency steady-flow steam generator structure of the present invention, the pressing assembly further includes a driven bevel gear meshing on the outside of the main bevel gear, and a spiral extrusion frame for extruding electrolyte into the driven bevel gear, and a feeding disc for feeding electrolyte is horizontally placed on the side of the outer shell near the material cylinder, and a short tube bundle is connected to the inner circumference of the feeding disc, and a long tube bundle is connected to the outer circumference of the feeding disc.

[0010] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure described in this invention, the short tube bundle is connected to a primary collection tray horizontally placed with the outer shell at its bottom end, and a primary discharge pipe is connected to the outer end of the primary collection tray. The long tube bundle is connected to a secondary collection tray penetrating into the liquid storage tank at its bottom end, and a secondary discharge pipe is connected to the outer end of the secondary collection tray. The connection end of the primary discharge pipe and the secondary discharge pipe is connected to a tee joint with an electrically controlled valve, and an external pipe joint for SOEC stack feeding is connected to the bottom end of the tee joint.

[0011] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure of the present invention, the recovery component further includes a separator connected to the outer end of the recovery pipe, a suction pipe connected to the suction port of the compressor at the outer end of the separator, a circulation pipe connected to the exhaust port of the compressor, and a three-way valve with a flow stabilizing valve connected to the circulation pipe.

[0012] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure described in this invention, the liquid storage tank and the separator are connected by an interconnecting pipe, and an electric heater is embedded in the top of the separator, and a heating coil for heating the waste heat in the upper layer of the liquid storage tank is provided on the electric heater.

[0013] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure of the present invention, the supply component further includes a lower guide shroud connected to the inner end of the three-way valve, a corner pipe connected to the top of the three-way valve, an upper guide shroud connected to the top of the corner pipe, a four-way valve connected to the inner end of the upper guide shroud, and a straight pipe connected to the jacket cavity connected to the inner end of the four-way valve.

[0014] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure of the present invention, wherein: the outer end of the four-way valve is connected to a bend, and the inner ends of the two bends are connected to a rotating head, and the rotating head is connected to a connecting head that is connected to the screw extruder, and a hollow cavity connected to the connecting head is opened in the screw extruder.

[0015] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure of the present invention, the triggering component further includes a pressure sensor embedded on the outside of the housing, which is triggered by an electrical signal with the trigger, and a first-stage electric push rod is fixed on the other output shaft of the dual-head motor through a coupling, and a half gear is fixed on the piston rod of the first-stage electric push rod.

[0016] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure of the present invention, wherein: a first conductive plate is fixed on the outer side of the half gear and is triggered by a trigger, and a secondary electric push rod is rotated inside the lower cover and triggered by the first conductive plate and the trigger, and a circular gear is fixed on the piston rod of the secondary electric push rod.

[0017] As a preferred embodiment of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure of the present invention, the regulating component includes a primary turbulence plate embedded in the upper guide shroud, and a primary regulating plate rotating inside the two sets of primary turbulence plates. A primary rack plate meshing with the stroke of the half gear and the spur gear is fixed on the upper and lower sides of the primary regulating plate. A secondary turbulence plate is embedded in the lower guide shroud, and a secondary regulating plate rotating inside the two sets of secondary turbulence plates is provided. A secondary rack plate is fixed on the secondary regulating plate and meshes with the stroke of the spur gear.

[0018] The beneficial effects of this invention are as follows: First, the electrolyte material used in SOEC electrolysis hydrogen production is squeezed into tube bundles of varying lengths through the pressing component, ensuring sufficient material distribution to prevent uneven distribution and subsequent uneven heating. Then, the waste heat after the heat source is used is recycled and reused through the recovery and supply components, avoiding waste of waste heat energy and reducing energy consumption, thus achieving greater energy efficiency. Next, the triggering and regulating components, based on an electrical signal triggering mechanism, achieve a stable flow regulation effect on the waste heat during the recycling process, preventing turbulence after the heat source enters the steam generator, further improving the heating uniformity of the electrolyte within the tube bundle, facilitating efficient steam evolution, and accelerating the SOEC electrolysis hydrogen production process. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A scene diagram of the structure of a high-efficiency, steady-flow steam generator for SOEC electrolysis hydrogen production.

[0021] Figure 2 A cross-sectional view of the structure of a high-efficiency steady-flow steam generator for SOEC electrolysis hydrogen production.

[0022] Figure 3 Rear view of the recovery component of the SOEC electrolytic hydrogen production high-efficiency steady-flow steam generator structure.

[0023] Figure 4 A cross-sectional view of the separator in the structure of a high-efficiency steady-flow steam generator for SOEC electrolysis hydrogen production.

[0024] Figure 5 A side cross-sectional view of the feed cylinder and pressing assembly of the SOEC electrolytic hydrogen production high-efficiency steady-flow steam generator.

[0025] Figure 6 A partial side cross-sectional view of the pressurization assembly of the SOEC electrolytic hydrogen production high-efficiency steady-flow steam generator structure.

[0026] Figure 7 A partial exploded view of the pressurization assembly of the SOEC electrolytic hydrogen production high-efficiency steady-flow steam generator structure.

[0027] Figure 8 Exploded cross-sectional view of the upper casing, lower casing, lower guide shroud, upper guide shroud, triggering assembly, and regulating assembly of the SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator.

[0028] Figure 9 Exploded side view of the triggering and regulating components of the SOEC electrolytic hydrogen production high-efficiency steady-flow steam generator.

[0029] In the diagram: 1. Outer shell; 2. Heat source pipe; 3. Liquid reservoir; 4. Material cylinder; 5. Material pipe; 6. Upper cover; 7. Lower cover; 81. Dual-head motor; 82. Main bevel gear; 83. Driven bevel gear; 84. Spiral extrusion frame; 85. Distribution disc; 86. Long tube bundle; 87. Short tube bundle; 91. Recovery pipe; 92. Separator; 93. Suction pipe; 94. Compressor; 95. Circulation pipe; 96. Three-way valve; 101. Lower guide shroud; 102. Angle pipe; 103. Upper guide shroud; 104. Four-way valve; 105. Straight pipe; 106. Jacket cavity; 111. Pressure sensor; 112. Trigger; 1 13. Primary electric actuator; 114. Half gear; 115. First conductive plate; 116. Secondary electric actuator; 117. Circular gear; 121. Primary turbulence plate; 122. Primary adjusting plate; 123. Primary rack plate; 124. Secondary turbulence plate; 125. Secondary adjusting plate; 126. Secondary rack plate; 13. Primary collecting tray; 14. Primary discharge pipe; 15. Secondary collecting tray; 16. Secondary discharge pipe; 17. T-joint; 18. Interconnecting pipe; 19. Electric heater; 20. Heating coil; 21. Bend; 22. Rotating head; 23. Connecting head; 24. Hollow cavity; 25. Slide rail groove. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, referring to Figures 1-9This is the first embodiment of the present invention. This embodiment provides a structure for a high-efficiency steady-flow steam generator for SOEC electrolysis hydrogen production, including an outer shell 1. A heat source pipe 2 connected to an external heat source is connected to the outer side of the outer shell 1. A liquid storage tank 3 is connected to the bottom of the outer shell 1 to collect the condensate generated after the tube bundle is heated and condensed. A material cylinder 4 is connected to the top of the outer shell 1. A material pipe 5 is connected to the outer side of the material cylinder 4. An upper cover 6 and a lower cover 7 are arranged sequentially from top to bottom on the outer side of the material cylinder 4. Both the heat source pipe 2 and the material pipe 5 are controlled by one-way valves to prevent backflow after the heat source and material are added.

[0034] Specifically, the cylinder 4 is equipped with a pressing assembly for electrolyte distribution, including a dual-head motor 81 embedded between the cylinder 4 and the upper cover 6, a main bevel gear 82 sleeved on one output shaft of the dual-head motor 81, a driven bevel gear 83 meshing on the outside of the main bevel gear 82, and a spiral extrusion frame 84 for electrolyte extrusion distribution embedded in the driven bevel gear 83. A distribution plate 85 for electrolyte distribution is horizontally placed on the side of the outer shell 1 near the cylinder 4, and a short tube bundle 87 is connected to the inner circumference of the distribution plate 85, and a long tube bundle 86 is connected to the outer circumference of the distribution plate 85.

[0035] First, the dual-head motor 81 drives the spiral extrusion frame 84 on the bevel gear 83 to rotate via the main bevel gear 82. The SOEC electrolyte added to the material cylinder 4 through the material pipe 5 is spirally extruded into the distribution plate 85. Then, the distribution plate 85 evenly distributes the electrolyte into the short tube bundle 87 and the long tube bundle 86. Then, the external heat source is injected into the short tube bundle 87 and the long tube bundle 86 area inside the outer shell 1 through the heat source pipe 2. The electrolyte in the short tube bundle 87 and the long tube bundle 86 is then evenly heated and evaporated. This achieves a full distribution of the electrolyte after extrusion, preventing uneven distribution of electrolyte in the tube bundle and causing uneven heating.

[0036] The bottom end of the short tube bundle 87 is connected to a primary collection tray 13 that is horizontally positioned with the outer shell 1, and a primary discharge pipe 14 is connected to the outer end of the primary collection tray 13. The bottom end of the long tube bundle 86 is connected to a secondary collection tray 15 that extends into the liquid reservoir 3, and a secondary discharge pipe 16 is connected to the outer end of the secondary collection tray 15. The connection end of the primary discharge pipe 14 and the secondary discharge pipe 16 is connected to a tee joint 17 with an electrically controlled valve, and an external pipe connector for feeding SOEC stack is connected to the bottom end of the tee joint 17.

[0037] After the electrolyte in the short tube bundle 87 and the long tube bundle 86 completes the heating and evaporation process, the electrolyte in the short tube bundle 87 first settles into the primary collection tray 13, and then is discharged through the primary discharge pipe 14 above it. The electrolyte in the long tube bundle 86 first settles into the secondary collection tray 15, and then is discharged through the secondary discharge pipe 16 above it. Both are then collected by the tee connector 17 and discharged through the external pipe connector and pipeline, reaching the SOEC stack for electrolysis to produce hydrogen. This achieves the effect of zoned discharge of the electrolyte in the short tube bundle 87 and the long tube bundle 86, preventing incomplete discharge and turbulence.

[0038] Example 2, refer to Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, the outer end of the liquid reservoir 3 is respectively provided with a recovery component and a supply component for synchronous heating of the outer shell 1 and the barrel 4, and includes a recovery pipe 91 connected to the outer end of the liquid reservoir 3, and a compressor 94 for high-speed compression of waste heat. The outer end of the recovery pipe 91 is connected to a separator 92, and the outer end of the separator 92 is connected to a suction pipe 93 connected to the suction port of the compressor 94. The exhaust port of the compressor 94 is connected to a circulation pipe 95, and a three-way valve 96 with a flow stabilizing valve is connected to the circulation pipe 95.

[0040] After the heat source completes the heating and evaporation of the electrolyte in the short tube bundle 87 and the long tube bundle 86, the waste heat generated in the outer shell 1 is pre-recovered to the separator 92 through the recovery pipe 91 under the suction force of the compressor 94. This forces the condensed water vapor carried in the waste heat to settle and precipitate, and is then discharged by the compressor 94 through the circulation pipe 95 to the three-way valve 96 under high pressure. This process circulates and recovers the waste heat generated after the use of the heat source in the outer shell 1, avoiding waste of waste heat energy and making it more energy-efficient.

[0041] The liquid receiver 3 and the separator 92 are connected by an interconnecting pipe 18. The condensate generated after the tube bundle in the liquid receiver 3 is condensed flows into the separator 92 through the interconnecting pipe 18. At the same time, the condensate generated by the waste heat recovery condensation in the separator 92 can also flow into the liquid receiver 3 through the interconnecting pipe 18, thereby expanding the condensate storage capacity and preventing overflow into the tube bundle evaporation area. An electric heater 19 is embedded in the top of the separator 92, and a heating coil 20 is installed on the electric heater 19 for heating the waste heat in the upper layer of the liquid receiver 3. The waste heat reaching the separator 92 is heated to reach the required evaporation temperature, reducing the heat source supply and saving energy.

[0042] Specifically, the compressor 94 used for high-speed compression of waste heat in the supply assembly, and the jacketed cavity 106 opened in the barrel 4, also include a lower guide shroud 101 connected to the inner end of the three-way valve 96, and a corner pipe 102 connected to the top of the three-way valve 96, and an upper guide shroud 103 connected to the top of the corner pipe 102, and a four-way valve 104 connected to the inner end of the upper guide shroud 103, and a straight pipe 105 connected to the jacketed cavity 106 connected to the inner end of the four-way valve 104.

[0043] The waste heat discharged under high pressure by the compressor 94 into the three-way valve 96 is divided into two paths. One path of waste heat is supplied into the lower guide shroud 101, directly acting on the tube bundle area inside the outer shell 1 to heat and evaporate the electrolyte in the short tube bundle 87 and long tube bundle 86. The other path of waste heat is supplied through the corner tube 102 into the four-way valve 104 on the upper guide shroud 103, and then further divided into two paths. One path of waste heat is directly supplied through the straight pipe 105 on the four-way valve 104 into the jacket cavity 106 inside the material cylinder 4. Under the action of heat conduction, the waste heat preheats the electrolyte in the material cylinder 4 in the spiral pressing state from the outside. The waste heat recovered by circulation is divided into multiple paths for utilization, so as to avoid strong turbulence of the waste heat discharged under high pressure by the compressor 94, and further improve the full utilization of waste heat energy.

[0044] The outer end of the four-way valve 104 is connected to a bend 21, and the inner ends of the two bends 21 are connected to a rotating head 22. The rotating head 22 is connected to a connecting head 23 that is connected to the screw extruder 84. A hollow cavity 24 that is connected to the connecting head 23 is opened in the screw extruder 84.

[0045] Another source of residual heat, supplied to the four-way valve 104 on the upper guide shroud 103, is delivered through the rotating head 22 on the two bent pipes 21 and the connecting head 23 to the hollow cavity 24 inside the rotating screw extruder 84. Without interfering with the normal extrusion operation of the screw extruder 84, the electrolyte in the barrel 4 is preheated from the inside. Combined with the external residual heat conduction in the jacket cavity 106, the residual heat is used to achieve efficient preheating of the electrolyte in the barrel 4, which is conducive to the rapid heating of the electrolyte in the subsequent tube bundle, accelerates the evaporation rate of the electrolyte, improves the evaporation efficiency of the electrolyte, shortens the evaporation time, and ensures the progress of SOEC electrolysis hydrogen production.

[0046] Example 3, referring to Figures 1-9 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0047] Specifically, the upper cover 6 and the lower cover 7 are respectively provided with a triggering component and an adjusting component for waste heat turbulence, and include a trigger 112 embedded on the outside of the upper cover 6, and a pressure sensor 111 embedded on the outside of the outer shell 1, which is triggered by the trigger 112 through an electrical signal. A first-stage electric push rod 113 is fixed on the other output shaft of the dual-head motor 81 through a coupling, and a half gear 114 is fixed on the piston rod of the first-stage electric push rod 113.

[0048] After the waste heat pressurizes and reaches the lower guide shroud 101 and the upper guide shroud 103, the pressure sensor 111, which monitors the heat pressure inside the outer shell 1 in real time, immediately sends an electrical signal to the trigger 112 when it detects that the pressure inside the outer shell 1 is unstable. The trigger 112 then controls the first-stage electric push rod 113 to work and controls the dual-head motor 81 to pause work within a preset time. It also drives the half gear 114 to move forward to its position, triggering the flow stabilization adjustment of the waste heat inside the upper guide shroud 103 and activating the flow stabilization measures inside the lower guide shroud 101.

[0049] A first conductive plate 115, which is triggered by contact with the trigger 112, is fixed to the outer side of the half gear 114. A secondary electric push rod 116, which is triggered by the first conductive plate 115 and the trigger 112, rotates within the lower housing 7. A PLC control panel is fixed to the outer end of the corner tube 102 via a mounting collar. Based on the primary triggering mechanism of the pressure sensor 111 and the trigger 112, and the secondary triggering mechanism of the first conductive plate 115 and the trigger 112, the control panel precisely controls the dual-head motor 81, the primary electric push rod 113, and the secondary electric push rod 116. In the quasi-open / closed state, a spherical gear 117 is fixed on the piston rod of the secondary electric push rod 116. After the trigger 112 triggers the primary electric push rod 113 to work, the first conductive plate 115 on the half gear 114, which is moved forward by the primary electric push rod 113, comes into contact with the trigger 112, triggering the secondary triggering mechanism. This forces the trigger 112 after the secondary triggering to control the secondary electric push rod 116 to work, and drives the spherical gear 117 to move forward to its position, triggering the flow stabilization adjustment of the residual heat in the lower guide shroud 101, and opening the flow stabilization measures in the upper guide shroud 103.

[0050] The adjustment assembly includes a primary turbulence plate 121 embedded in the upper guide shroud 103, and a primary adjustment plate 122 rotating inside the two sets of primary turbulence plates 121. Primary rack plates 123, which mesh with the stroke of the half gear 114 and the spur gear 117, are fixed on the upper and lower sides of the primary adjustment plate 122. A trigger 112 controls the primary electric push rod 113 to move the half gear 114 forward until it reaches the primary rack plate 123 above the primary adjustment plate 122. Then, a dual-head motor 81 controls the half gear 114 to move forward after the primary adjustment plate 122 has reached its position. Gear 114 drives the first-stage adjusting plate 122 on the first-stage rack plate 123 to rotate adaptively at an angle within the two sets of first-stage turbulence plates 121 in the upper guide shroud 103. This forces the holes on the first-stage adjusting plate 122 to partially block the holes on the two sets of first-stage turbulence plates 121, reducing the passage of residual heat through the two sets of first-stage turbulence plates 121 within the upper guide shroud 103. This achieves stable flow regulation of residual heat within the upper guide shroud 103, providing slow pressure preheating to the electrolyte squeezed in the barrel 4, until the trigger time is reached, at which point the plate is reset.

[0051] Furthermore, a secondary turbulence plate 124 is embedded within the lower guide shield 101, and a secondary adjustment plate 125 rotates within the two sets of secondary turbulence plates 124, along with a secondary rack plate 126 fixed on the secondary adjustment plate 125. This rack plate 126 meshes with the spur gear 117. The secondary-triggered electric push rod 116 drives the spur gear 117 forward, reaching the primary rack plate 123 below the primary adjustment plate 122 and the secondary rack plate 126 above the secondary adjustment plate 125. The primary adjustment plate 122, rotated by the primary trigger, is then driven into position via the primary rack plate 123 below it. The rotating sprocket 117 then drives the two sets of secondary turbulence plates 124 within the lower guide shroud 101 to rotate adaptively via the secondary rack plate 126. This forces the holes on the secondary adjustment plate 125 to partially block the holes on the two sets of secondary turbulence plates 124, reducing the passage of residual heat through the two sets of secondary turbulence plates 124 within the lower guide shroud 101. This achieves stable flow regulation of residual heat within the lower guide shroud 101, providing gentle pressure preheating to the electrolyte in the inner tube bundle of the outer shell 1, until the trigger time is reached, at which point the system resets.

[0052] Furthermore, both the primary rack plate 123 and the secondary rack plate 126 adopt a quarter-circle design, allowing them to rotate in both directions for fine-tuning. A circular slide rail groove 25 is provided within the lower guide shroud 101 and the upper guide shroud 103, rotating with the primary adjustment plate 122 and the secondary adjustment plate 125. This stabilizes the rotation of the primary and secondary adjustment plates 122 and 125 during adjustment, improving their adaptive adjustment stability. A damping sleeve is embedded within the slide rail groove 25 for rotating with the primary and secondary adjustment plates 122 and 125. This damping force, combined with the compressive force generated by the two tightly fitted primary and secondary adjustment plates 122 and 125, ensures that the primary and secondary adjustment plates 122 and 125 remain stationary, unaffected by residual heat impact.

[0053] The working principle is as follows: First, the dual-head motor 81 drives the spiral extrusion frame 84 on the bevel gear 83 to rotate through the main bevel gear 82. The SOEC electrolyte added to the material cylinder 4 through the material pipe 5 is spirally extruded into the distribution plate 85. Then, the distribution plate 85 evenly distributes the electrolyte into the short tube bundle 87 and the long tube bundle 86. Then, the external heat source is injected into the short tube bundle 87 and the long tube bundle 86 area inside the outer shell 1 through the heat source pipe 2. The electrolyte in the short tube bundle 87 and the long tube bundle 86 is evenly heated and evaporated.

[0054] After the heat source completes the heating and evaporation of the electrolyte in the short tube bundle 87 and the long tube bundle 86, the residual heat generated in the outer shell 1 is pre-recovered to the separator 92 through the recovery pipe 91 under the suction force of the compressor 94, which forces the condensed water vapor carried in the residual heat to settle and precipitate. The pure residual heat in the separator 92 is then heated by the heating coil 20 on the electric heater 19 to reach the required evaporation temperature, and then discharged by the compressor 94 through the circulation pipe 95 under high pressure to the three-way valve 96.

[0055] Meanwhile, the waste heat discharged under high pressure by the compressed blower 94 into the three-way valve 96 is divided into two paths. One path of waste heat is supplied into the lower guide shroud 101 and acts directly on the tube bundle area inside the outer shell 1 to heat and evaporate the electrolyte in the short tube bundle 87 and long tube bundle 86. The other path of waste heat is supplied into the four-way valve 104 on the upper guide shroud 103 through the corner tube 102, and then further divided into two paths. One path of waste heat is directly supplied into the jacket cavity 106 inside the material cylinder 4 through the straight pipe 105 on the four-way valve 104. Under the action of heat conduction, the waste heat preheats the electrolyte in the material cylinder 4 in the spiral pressing state from the outside.

[0056] Meanwhile, the waste heat supplied to the four-way valve 104 on the upper guide shroud 103 is delivered through the rotating head 22 on the two bent pipes 21 and the connecting head 23 to the hollow cavity 24 inside the rotating screw extruder 84. Without interfering with the normal extrusion operation of the screw extruder 84, the electrolyte in the barrel 4 is preheated from the inside. Combined with the external waste heat conduction in the jacket cavity 106, the electrolyte in the barrel 4 is preheated twice by using the recycled waste heat in a combined internal and external manner.

[0057] During the process of the waste heat from the compressed blower 94 pressurizing the air into the lower guide shroud 101 and the upper guide shroud 103, the pressure sensor 111, which monitors the heat and pressure inside the outer shell 1 in real time, immediately sends an electrical signal to the trigger 112 when it detects unstable pressure. The trigger 112 then controls the first-stage electric push rod 113 to work and controls the dual-head motor 81 to pause work within a preset time. The first-stage electric push rod 113, which is triggered by the first stage, drives the half gear 114 to move forward and reach the first-stage rack plate 123 above the first-stage adjustment plate 122. The second-stage electric push rod 116, which is triggered by the second stage, drives the spur gear 117 to move forward and reach the first-stage rack plate 123 below the first-stage adjustment plate 122 and the second-stage rack plate 126 above the second-stage adjustment plate 125. After the pause time of the dual-head motor 81 is reached, the dual-head motor 81 restarts.

[0058] Meanwhile, the reactivated dual-head motor 81 controls the half gear 114 after the first-stage trigger is in place, driving the first-stage adjusting plate 122 on the first-stage rack plate 123 to rotate adaptively at the angle of the two sets of first-stage turbulence plates 121 inside the upper guide shroud 103. This forces the holes on the first-stage adjusting plate 122 to partially block the holes on the two sets of first-stage turbulence plates 121, reducing the passage of residual heat through the two sets of first-stage turbulence plates 121 inside the upper guide shroud 103. Conversely, the holes on the first-stage adjusting plate 122 and the holes on the two sets of first-stage turbulence plates 121 are completely aligned, expanding the passage of residual heat through the two sets of first-stage turbulence plates 121 inside the upper guide shroud 103. This causes the residual heat in the upper cover 6 to be depressurized and pass through the two sets of first-stage turbulence plates 121 after the holes have been reduced or expanded, and then exerts a gentle pressure effect on the material cylinder 4, uniformly preheating the electrolyte inside.

[0059] Next, the primary regulating plate 122, triggered by the primary rotation, drives the stationary sprocket 117 to rotate via the primary rack plate 123 below. Then, the rotating sprocket 117, via the secondary rack plate 126, drives the secondary regulating plate 125 to rotate adaptively at the angle of the two sets of secondary turbulence plates 124 inside the lower guide shroud 101. This forces the holes on the secondary regulating plate 125 to partially block the holes on the two sets of secondary turbulence plates 124, reducing the diameter of the channels through which the residual heat in the lower guide shroud 101 passes through the two sets of secondary turbulence plates 124. Conversely, the holes on the secondary regulating plate 125 and the holes on the two sets of secondary turbulence plates 124 completely overlap, expanding the diameter of the channels through which the residual heat in the lower cover 7 passes through the two sets of secondary turbulence plates 124. This causes the residual heat in the lower guide shroud 101 to be depressurized and pass through the two sets of secondary turbulence plates 124 after the holes have been reduced or expanded. The pressure is then applied to the electrolyte in the inner tube bundle of the outer shell 1 for uniform heating and evaporation.

[0060] After the two trigger times have elapsed, the first-stage electric push rod 113 drives the half gear 114 to move backward and disengage from the first-stage rack plate 123 above the first-stage adjustment plate 122, resetting to the initial state. The first-stage adjustment plate 122 remains in the adjustment state. Similarly, the second-stage electric push rod 116 drives the spur gear 117 to move backward and disengage from the first-stage rack plate 123 below the first-stage adjustment plate 122 and the second-stage rack plate 126 above the second-stage adjustment plate 125, resetting to the initial state. The second-stage adjustment plate 125 remains in the adjustment state, so the residual heat reaching the upper cover 6 and lower cover 7 is always transported in a stable flow state until the pressure sensor 111 sends a trigger electrical signal to the trigger 112 next time.

[0061] Then, after the electrolyte in the short tube bundle 87 and the long tube bundle 86 has completed the heating and evaporation process, the electrolyte in the short tube bundle 87 first settles into the primary collection tray 13, and then is discharged from the primary discharge pipe 14 above it. The electrolyte in the long tube bundle 86 first settles into the secondary collection tray 15, and then is discharged from the secondary discharge pipe 16 above it. After being collected by the tee joint 17, it is discharged from the external pipe joint and pipeline, and reaches the SOEC stack for electrolysis hydrogen production.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A structure for a high-efficiency steady-flow steam generator for SOEC electrolysis hydrogen production, characterized in that: Includes a shell (1), the outer side of which is connected to a heat source pipe (2) connected to an external heat source, and a liquid reservoir (3) connected to the bottom end of the shell (1), and a material cylinder (4) connected to the top end of the shell (1), and a material pipe (5) connected to the outer side of the material cylinder (4). In addition, an upper cover (6) and a lower cover (7) are arranged sequentially from top to bottom on the outer side of the material cylinder (4), and a pressing assembly for electrolyte distribution is provided inside the material cylinder (4), including a double-head motor (81) embedded between the material cylinder (4) and the upper cover (6), and a main bevel gear (82) sleeved on one output shaft of the double-head motor (81). Furthermore, the outer end of the liquid storage tank (3) is respectively provided with a recovery component and a supply component for synchronous heating of the outer shell (1) and the barrel (4), and includes a recovery pipe (91) connected to the outer end of the liquid storage tank (3), and a compressor (94) for high-speed compression of waste heat. The recovery component also includes a separator (92) connected to the outer end of the recovery pipe (91), and a suction pipe (93) connected to the suction port of the compressor (94) connected to the outer end of the separator (92). The exhaust port of the compressor (94) is connected to a circulation pipe (95), and the circulation pipe... (95) The upper part is connected to a three-way valve (96) with a flow stabilizing valve, and a jacketed cavity (106) opened in the material cylinder (4). The supply assembly also includes a lower guide shroud (101) connected to the inner end of the three-way valve (96), and a corner tube (102) connected to the top of the three-way valve (96). The top of the corner tube (102) is connected to an upper guide shroud (103), and the inner end of the upper guide shroud (103) is connected to a four-way valve (104). The inner end of the four-way valve (104) is connected to a straight pipe (105) connected to the jacketed cavity (106). Furthermore, the upper casing (6) and the lower casing (7) are respectively provided with a triggering component and an adjusting component for waste heat turbulence, and include a trigger (112) embedded on the outside of the upper casing (6). The triggering component also includes a pressure sensor (111) embedded on the outside of the outer casing (1), which is triggered by the trigger (112) through an electrical signal. A first-stage electric push rod (113) is fixed on the other output shaft of the dual-head motor (81) through a coupling, and a half gear (114) is fixed on the piston rod of the first-stage electric push rod (113). A first conductive plate (115) that is triggered by contact with the trigger (112) is fixed on the outside of the half gear (114), and a second conductive plate that is triggered by the first conductive plate (115) and the trigger (112) rotates inside the lower casing (7). The first-stage electric push rod (116) is fixed with a spur gear (117) on the piston rod of the second-stage electric push rod (116). The adjustment assembly includes a first-stage turbulence plate (121) embedded in the upper guide shroud (103), and a first-stage adjustment plate (122) rotating inside the two sets of first-stage turbulence plates (121). A first-stage rack plate (123) meshing with the stroke of the half gear (114) and the spur gear (117) is fixed on the upper and lower sides of the first-stage adjustment plate (122). A second-stage turbulence plate (124) is embedded in the lower guide shroud (101), and a second-stage adjustment plate (125) rotating inside the two sets of second-stage turbulence plates (124) is fixed with a second-stage rack plate (126) on the second-stage adjustment plate (125) and meshing with the stroke of the spur gear (117).

2. The SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure as described in claim 1, characterized in that: The pressing assembly also includes a driven bevel gear (83) meshing with the outside of the main bevel gear (82), and a spiral extrusion frame (84) for extruding the electrolyte into the driven bevel gear (83), and a feeding disc (85) for feeding the electrolyte is horizontally placed on the side of the outer shell (1) near the material cylinder (4), and a short tube bundle (87) is connected to the inner circumference of the feeding disc (85), and a long tube bundle (86) is connected to the outer circumference of the feeding disc (85).

3. The SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure as described in claim 2, characterized in that: The bottom end of the short tube bundle (87) is connected to a primary collection tray (13) that is horizontally placed with the outer shell (1), and the outer end of the primary collection tray (13) is connected to a primary discharge pipe (14). The bottom end of the long tube bundle (86) is connected to a secondary collection tray (15) that extends into the reservoir (3), and the outer end of the secondary collection tray (15) is connected to a secondary discharge pipe (16). The connecting end of the primary discharge pipe (14) and the secondary discharge pipe (16) is connected to a tee joint (17) with an electrically controlled valve, and the bottom end of the tee joint (17) is connected to an external pipe joint for feeding SOEC stacks.

4. The SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure as described in claim 3, characterized in that: The liquid reservoir (3) and the separator (92) are connected by an interconnecting pipe (18), and an electric heater (19) is embedded on the top of the separator (92), and a heating coil (20) is provided on the electric heater (19) for heating the waste heat of the upper layer of the liquid reservoir (3).

5. The SOEC electrolysis hydrogen production high-efficiency steady-flow steam generator structure as described in claim 4, characterized in that: The outer end of the four-way valve (104) is connected to a bend (21), and the inner ends of the two bends (21) are connected to a rotating head (22). The rotating head (22) is connected to a connecting head (23) that is connected to the spiral extruder (84), and a hollow cavity (24) that is connected to the connecting head (23) is opened in the spiral extruder (84).

Images