Optimized adjustment method for hydrogen production from renewable energy sources

Abstract

The invention relates to an optimal regulation method for hydrogen production by renewable energy sources. The method comprises three steps of data acquisition, system construction and hydrogen production operation. The system disclosed by the invention is high in integration and modularization degree, can effectively meet the requirements of hydrogen preparation and production work with various productivity and production requirements, and has good adaptability and universality; meanwhile, during operation, multiple factors such as market demand, equipment capacity and energy supply are effectively planned as a whole, the production efficiency is greatly improved while the hydrogen preparation production continuity and stability are effectively improved, and meanwhile, during operation, the energy recycling efficiency can be effectively improved, so that the production cost is greatly reduced; the comprehensive utilization rate of resources is improved, and the stability and continuity of operation of production equipment are improved.

Description

Technical Field

[0001] The present invention relates to an optimization regulation method for hydrogen production from renewable energy, belonging to the technical field of hydrogen production. Background Art

[0002] Currently, in order to reduce the energy consumption in hydrogen production, using renewable energy to provide power supply for hydrogen production equipment has gradually become the current main development trend. However, in actual production work, during the operation of renewable energy equipment, its power generation, heat generation and other working efficiencies are extremely susceptible to factors such as the natural environment, the source of renewable resources, and the operating status of production equipment, resulting in a large impact on its power generation and heat generation working efficiencies and stabilities, thus affecting the working efficiency of hydrogen production operations and the stability of gas production. At the same time, the hydrogen production capacity is also affected by market demand, and it is also prone to contradictions between market demand and the operating efficiency of hydrogen production equipment and the power generation and heat generation efficiencies of renewable energy, thus easily causing supply-demand contradictions such as excessive hydrogen production capacity or the inability of hydrogen production capacity to effectively meet market demand. In response to this problem, there is currently no effective production scheduling method for synergistically regulating the three core factors of hydrogen production efficiency, renewable energy supply efficiency, and market fluctuations, resulting in poor precision in current hydrogen production control and regulation, seriously affecting the costs, stabilities, and reliabilities of hydrogen production and supply operations.

[0003] In response to this problem, there is an urgent need to develop an optimization regulation method for hydrogen production from renewable energy to meet the needs of actual work. Summary of the Invention

[0004] In order to solve the deficiencies in the prior art, the present invention has a high degree of system integration and modularization, can effectively meet the needs of hydrogen production work with various production capacities and production demands, and has good adaptability and versatility; at the same time, during operation, it effectively plans and coordinates multiple factors such as market demand, equipment production capacity, and energy supply, effectively improving the continuity and stability of hydrogen production, while greatly improving production efficiency. At the same time, during operation, it can also effectively improve the recycling efficiency of energy, thus greatly reducing production costs, improving the comprehensive utilization rate of resources, and improving the stability and continuity of the operation of production equipment.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: An optimization regulation method for hydrogen production from renewable energy, comprising the following steps: S1. Data collection: First, collect the single-unit hydrogen production volume and operating power of the hydrogen generator equipment used for hydrogen production. At the same time, collect the overall efficiency and production capacity requirements for hydrogen production needed in the production. Then, select the types and power generation efficiencies of the renewable energy equipment participating in the hydrogen production operation. At the same time, collect the structural data of the hydrogen production site. Finally, on the one hand, calculate the minimum energy demand to ensure stable hydrogen production based on the operating parameters and theoretical hydrogen production of the hydrogen generator equipment; on the other hand, count and calculate the minimum and maximum power supply amounts of each renewable energy equipment under extreme conditions, and calculate the average power supply amount. S2. System construction: According to the structural data of the hydrogen production site collected in S1, respectively arrange the areas for the hydrogen generator equipment and the renewable energy equipment. At the same time, set up a power adjustment system for the renewable energy equipment to provide electrical and thermal energy supplies for the hydrogen generator. Then, on the one hand, based on the current hydrogen market demand output and the theoretical hydrogen production in S1, set the operating efficiency and power demand of each hydrogen generator equipment, and summarize and calculate the operating efficiency and power demand required for the overall operation of each hydrogen generator equipment; on the other hand, according to each renewable energy equipment, raw material costs, and natural environmental factor conditions, calculate the current power generation and efficiency of each renewable energy equipment, and the total power generation and power generation efficiency of each renewable energy equipment. Finally, on the one hand, summarize the operating efficiency and power demand of each hydrogen generator equipment and the current power generation and efficiency of each renewable energy equipment into the same curve graph for statistics, and on the other hand, summarize the operating efficiency and power demand required for the overall operation and the total power generation and power generation efficiency data of the renewable energy equipment into the same curve graph for statistics, so as to obtain the single-equipment operating efficiency statistical table and the overall system operating efficiency statistical table. S3. Hydrogen production operation: After completing S2, set the hydrogen production volume according to market needs, and keep the hydrogen production volume at a level not greater than 95% of the theoretical hydrogen production. Then, select the specific hydrogen generators participating in the production according to actual production needs, and set the actual production capacity of each hydrogen generator. The hydrogen generators not participating in the production are in standby state for backup. Then, drive the overall operation of the renewable energy equipment according to the electrical energy required for production activities, and divide the renewable energy equipment participating in the operation into the main power supply group and the auxiliary power supply group. Among them, the renewable energy equipment in the main power supply group operates and generates electricity at an efficiency of 80% - 90% to provide electrical energy for the hydrogen generators participating in the production activities; the total renewable energy equipment in the auxiliary power supply group operates and generates electricity at an efficiency of 5% - 10%, and the electrical energy generated is used to supply the power demand of non-production system equipment. Meanwhile, during the production process, on the one hand, the hydrogen generators participating in production are alternately replaced and maintained with the hydrogen generators in standby state; on the other hand, the renewable energy devices in the main power supply group and the auxiliary power supply group are subject to alternate replacement maintenance and operation, and during the replacement of the renewable energy devices, first, the power generation of the renewable energy devices in the auxiliary power supply group is increased to the maximum power generation that meets the production needs and is connected to the power supply system of the hydrogen generators participating in production, and then the power generation of the renewable energy devices to be overhauled and maintained is gradually reduced until it is completely shut down, and after the overhaul is completed, it is added to the auxiliary power supply group to run again.

[0006] Further, in the step S2, in the individual device operation efficiency statistical table, the intersection point of the operation curve of the hydrogen generator device and the operation curve of the renewable energy device is regarded as the optimal balance operation value, and then a specific optimal balance operation value is selected to guide the subsequent hydrogen production operation, and the optimal balance operation value coordinates the operation states of each hydrogen generator and renewable energy device.

[0007] Further, in the step S2, the power regulation system includes a dispatching server, a data communication network, a data acquisition terminal, and a resource comprehensive coordination agency. Among them, the dispatching server establishes data connections with the data acquisition terminal and the resource comprehensive coordination agency respectively through the data communication network. There are several data acquisition terminals, which are respectively in data connection with each hydrogen generator and renewable energy device. There are at least two resource comprehensive coordination agencies, which are connected in parallel with each other and are respectively connected to each hydrogen generator and renewable energy device.

[0008] Further, the resource comprehensive coordination agency includes a bearing keel, a circulation pump, a pressure regulating pump, a booster pump, a heat exchange mechanism, a heat storage tank, a battery pack, a hydrogen storage tank, a control circuit, a hydraulic circulation pipeline, a hydrogen gas diversion pipeline, and a rectifier circuit system. Among them, the bearing keel is a frame structure with an axis perpendicular to the horizontal plane and an axial cross-section in the shape of "I". There is at least one heat storage tank, battery pack, and hydrogen storage tank, which are respectively located in the grooves on the side wall of the bearing keel and are evenly distributed around the axis of the bearing keel. The hydrogen storage tank is connected to the hydrogen gas diversion pipeline through a booster pump, and the booster pump is connected to each hydrogen generator through the hydrogen gas diversion pipeline. At the same time, the hydrogen storage tank is also connected to a pressure regulating pump, and the pressure regulating pump is connected to external devices and renewable energy devices through the hydrogen gas diversion pipeline. The battery pack is electrically connected to each hydrogen generator and renewable energy device respectively through the rectifier circuit system. The heat storage tank is connected to the hydraulic circulation pipeline through a circulation pump on the one hand, and the hydraulic circulation pipeline is connected to each hydrogen generator and renewable energy device through the heat exchange mechanism. The rectifier circuit system and the control circuit are both located inside the bottom of the bearing keel, and the control circuit is also electrically connected to the circulation pump, pressure regulating pump, booster pump, heat exchange mechanism, heat storage tank, battery pack, and rectifier circuit system respectively.

[0009] Furthermore, the load-bearing keel includes a load-bearing base, load-bearing columns, a protective top plate, a lifting drive mechanism, auxiliary load-bearing columns, a ring drive guide rail, trays and sliders. The load-bearing base and the protective top plate are both disc-shaped structures, and the protective top plate is located directly above the load-bearing base and is coaxially distributed with the load-bearing base. The upper end surface of the load-bearing base is connected to the load-bearing columns, the upper end surface of the load-bearing columns is connected to the lifting drive mechanism and is connected to the protective top plate through the lifting drive mechanism, and the load-bearing base, load-bearing columns, protective top plate and lifting drive mechanism are coaxially distributed. There are at least three auxiliary load-bearing columns, which are respectively connected to the outer side surfaces of the load-bearing base and the protective top plate and are evenly distributed around the axis of the load-bearing columns. There are at least three ring drive guide rails. One of the ring drive guide rails is connected to the upper end surface of the load-bearing base and is coaxially distributed with the load-bearing columns. At least one ring drive guide rail coaxial with the outer side surface of the load-bearing columns is provided, and another ring drive guide rail is provided at the position of the auxiliary load-bearing column corresponding to the ring drive guide rail connected to the load-bearing columns. There are several trays, which are connected to the upper end surface of the load-bearing base through the ring drive guide rails. The heat storage tank, the battery pack and the hydrogen storage tank are respectively slidably connected to the load-bearing base through the trays, and at the same time, the heat storage tank, the battery pack and the hydrogen storage tank are respectively slidably connected to the ring drive guide rails connected to the load-bearing columns and the auxiliary load-bearing columns through the sliders. The lifting drive mechanism and the ring drive guide rails are both electrically connected to the control circuit.

[0010] Furthermore, the heat storage tank includes a storage tank body, an electric heating mechanism, a heat storage medium, a circulating heat conduction medium, a heat exchanger and a temperature sensor. The storage tank body is a closed cavity structure, with a feeding port provided on its upper end surface and two circulation ports provided on its lower end surface, and the two circulation ports are communicated with the heat exchange mechanism through a hydraulic circulation pipeline. At the same time, one of the circulation ports is communicated with the hydraulic circulation pipeline through a circulation pump. There is at least one heat exchanger, which is located inside the storage tank body and is coaxially distributed with the storage tank body, and is communicated with the two circulation ports at the same time. The heat exchanger and the heat exchange mechanism form a closed circulation pipeline through the hydraulic circulation pipeline. There are several electric heating mechanisms, which are embedded in the inner side surface of the storage tank body and are evenly distributed around the axis of the storage tank body. There is at least one temperature sensor, which is located inside the storage tank body and is connected to the top of the storage tank body. The heat storage medium is located inside the storage tank body and covers the outside of the heat exchanger. The electric heating mechanism and the temperature sensor are both electrically connected to the control circuit. The circulating heat conduction medium is located inside the heat exchanger, the hydraulic circulation pipeline and the heat exchange mechanism.

[0011] Further, the heat exchange mechanism includes heat exchange tubes, heat conduction plates, heat preservation protective covers, heat conduction metal shrapnel, and elastic cushion blocks. There are several heat exchange tubes, which are connected to each other through elastic cushion blocks and distributed within the same plane range. At the same time, the axes of each heat exchange tube are parallel to the horizontal plane. The heat preservation protective cover has a "U"-shaped groove structure in cross-section and covers outside each heat exchange tube. Each heat exchange tube is connected to the bottom of the groove of the heat preservation protective cover through at least three elastic cushion blocks evenly distributed along its axis. The heat conduction plate is embedded in the notch of the groove body of the heat preservation protective cover, and its plate surface is parallel to each heat exchange tube. At the same time, each heat exchange tube is connected to the rear end surface of the heat conduction plate through several heat conduction metal shrapnel, and the distance between the heat conduction plate and the heat exchange tube is 0-10 millimeters. At the same time, the heat conduction plate is slidably connected to the inner side surface of the heat preservation protective cover through an elastic cushion block. At the same time, several connecting blocks evenly distributed around its axis are additionally arranged on the outer side surface of the heat preservation protective cover, and the axis of the connecting block is perpendicular to the plate surface of the heat conduction plate.

[0012] Further, the control circuit is a circuit based on a programmable controller. At the same time, the control circuit is additionally provided with any one or several of, including but not limited to, a display, a keyboard, a potentiometer, a multi-section switch, an instrument, and a rotary switch for common use.

[0013] Further, the scheduling server is a data server platform based on cloud computing and is provided with a distributed data storage mechanism; the data acquisition terminal is a circuit system based on DSP and FPGA chips, and the data acquisition terminal is additionally provided with at least one serial communication port and at least one wireless communication module.

[0014] The system of the present invention has a high degree of system integration and modularization, can effectively meet the hydrogen production work requirements of various production capacities and production demands, and has good adaptability and versatility; at the same time, during operation, it effectively plans the market demand, equipment production capacity, and energy supply factors in an overall manner, effectively improves the continuity and stability of hydrogen production while greatly improving production efficiency. At the same time, during operation, it can also effectively improve the recycling efficiency of energy, thereby greatly reducing production costs, improving the comprehensive utilization rate of resources, and improving the stability and continuity of the operation of production equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in detail below in conjunction with the drawings and specific embodiments; Figure 1 It is a schematic flow chart of the method of the present invention Figure 2 It is a schematic structural diagram of the power adjustment system; Figure 3 It is a schematic partial structural diagram of the resource comprehensive coordination mechanism; Figure 4 It is a schematic partial cross-sectional view of the load-bearing keel; Figure 5 It is a schematic partial sectional view of the heat storage tank structure; Figure 6 It is a schematic partial sectional view of the heat exchange mechanism structure. Specific implementation manner

[0016] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to implement in construction, the present invention will be further described below in conjunction with specific implementation manners.

[0017] As Figures 1 - 4 shown, an optimization and regulation method for hydrogen production from renewable energy includes the following steps: S1, data collection. First, collect the single-unit hydrogen production volume and operating power of the hydrogen generator equipment used for hydrogen production; at the same time, collect the overall efficiency and production capacity requirements of hydrogen production required; then select the types and power generation efficiencies of the renewable energy equipment participating in the hydrogen production operation; at the same time, collect the structural data of the hydrogen production site; finally, on the one hand, calculate the minimum energy demand to meet stable hydrogen production according to the operating parameters and theoretical hydrogen production of the hydrogen generator equipment; on the other hand, count and calculate the minimum power supply and maximum power supply of each renewable energy equipment under extreme conditions, and calculate the average power supply; S2, system construction. According to the structural data of the hydrogen production site collected in S1, respectively arrange the areas of the hydrogen generator equipment and the renewable energy equipment, and at the same time set a power adjustment system for the renewable energy equipment to provide electrical energy and heat energy supply for the hydrogen generator; then, on the one hand, according to the current hydrogen market demand output and the theoretical hydrogen production in S1, set the operating efficiency and power demand of each hydrogen generator equipment, and summarize and calculate the operating efficiency and power demand required for the overall operation of each hydrogen generator equipment; on the other hand, according to each renewable energy equipment, raw material cost, natural environment factors, calculate the current power generation and efficiency of each renewable energy equipment, and the total power generation and power generation efficiency of each renewable energy equipment; finally, on the one hand, summarize the operating efficiency and power demand of each hydrogen generator equipment and the current power generation and efficiency of each renewable energy equipment into the same curve graph for statistics, and on the other hand, summarize the operating efficiency and power demand required for the overall operation and the total power generation and power generation efficiency data of the renewable energy equipment into the same curve graph for statistics, so as to obtain a single equipment operating efficiency statistical table and an overall system operating efficiency statistical table; S3. Hydrogen production operation. After completing S2, set the hydrogen production volume according to market demand and maintain the hydrogen production volume at a level not greater than 95% of the theoretical hydrogen production volume. Select specific hydrogen generators participating in production according to actual production needs and set the actual production capacity of each hydrogen generator. The hydrogen generators not participating in production are in standby state for backup. Then, drive the overall operation of the renewable energy equipment according to the electric energy required for production activities, and divide the renewable energy equipment participating in the operation into a main power supply group and an auxiliary power supply group. Among them, the renewable energy equipment in the main power supply group operates and generates electricity at an efficiency of 80% - 90% to provide electric energy for the hydrogen generators participating in production activities. The total renewable energy equipment in the auxiliary power supply group operates and generates electricity at an efficiency of 5% - 10%, and the electric energy generated by it supplies the electricity demand of non-production system equipment. Meanwhile, during the production process, on the one hand, the hydrogen generators participating in production and the hydrogen generators in standby state are alternately replaced for maintenance and equipment maintenance. On the other hand, the renewable energy equipment in the main power supply group and the auxiliary power supply group adopts alternate replacement for maintenance and maintenance operations. And during the replacement of the renewable energy equipment, first, the power generation of the renewable energy equipment in the auxiliary power supply group is increased to the maximum power generation that meets production needs and is connected to the power supply system of the hydrogen generators participating in production. Then, the power generation of the renewable energy equipment that needs to be repaired and maintained is gradually reduced at a uniform speed until it stops completely, and after the repair is completed, it joins the auxiliary power supply group again to operate.

[0018] In this embodiment, in the S2 step, in the individual equipment operation efficiency statistical table, the intersection point of the operation curve of the hydrogen generator equipment and the operation curve of the renewable energy equipment is regarded as the best balance operation value. Then, select a specific best balance operation value to guide the subsequent hydrogen production operation, and the best balance operation value coordinates the operation states of each hydrogen generator and renewable energy equipment.

[0019] It should be emphasized that in the S2 step, the power regulation system includes a dispatching server 1, a data communication network 2, a data acquisition terminal 3, and a resource comprehensive coordination agency 4. Among them, the dispatching server 1 establishes data connections with the data acquisition terminal 3 and the resource comprehensive coordination agency 4 respectively through the data communication network 2. There are several data acquisition terminals 3, which are respectively connected to each hydrogen generator 5 and renewable energy equipment 6 in data communication. There are at least two resource comprehensive coordination agencies 4, and the resource comprehensive coordination agencies 4 are connected in parallel with each other and are respectively connected to each hydrogen generator 3 and renewable energy equipment 4.

[0020] It should be emphasized that the resource comprehensive coordination agency 4 includes a load-bearing keel 41, a circulation pump 42, a pressure regulating pump 43, a booster pump 44, a heat exchange mechanism 45, a heat storage tank 46, a battery pack 47, a hydrogen storage tank 48, a control circuit 49, a hydraulic circulation pipeline 40, a hydrogen gas diversion pipeline 401, and a rectifier circuit system 402. Among them, the load-bearing keel 41 has an axis perpendicular to the horizontal plane and a frame structure with a "work" shaped axial cross-section. There is at least one heat storage tank 46, battery pack 47, and hydrogen storage tank 48, which are respectively located in the grooves on the side wall of the load-bearing keel 41 and are evenly distributed around the axis of the load-bearing keel 41. The hydrogen storage tank 48 is connected to the hydrogen gas diversion pipeline 401 through the booster pump 44, and the booster pump 44 is connected to each hydrogen generator 5 through the hydrogen gas diversion pipeline 401. At the same time, the hydrogen storage tank 48 is also connected to the pressure regulating pump 43, and the pressure regulating pump 43 is connected to external equipment and renewable energy equipment 6 through the hydrogen gas diversion pipeline 401. The battery pack 47 is electrically connected to each hydrogen generator 5 and renewable energy equipment 6 respectively through the rectifier circuit system 402. On the one hand, the heat storage tank 47 is connected to the hydraulic circulation pipeline 40 through the circulation pump 42, and the hydraulic circulation pipeline 40 is connected to each hydrogen generator 5 and renewable energy equipment 6 through the heat exchange mechanism 45. Both the rectifier circuit system 402 and the control circuit 49 are located inside the bottom of the load-bearing keel 41, and the control circuit 49 is also electrically connected to the circulation pump 42, pressure regulating pump 43, booster pump 44, heat exchange mechanism 45, heat storage tank 46, battery pack 47, and rectifier circuit system 402 respectively.

[0021] Among them, the load-bearing keel 41 includes a load-bearing base 410, a load-bearing column 411, a protective top plate 412, a lifting drive mechanism 413, an auxiliary load-bearing column 414, an annular drive guide rail 415, a tray 417, and a slider 416. The load-bearing base 410 and the protective top plate 412 are both disc-shaped structures, and the protective top plate 412 is located directly above the load-bearing base 410 and is coaxially distributed with the load-bearing base 410. The upper end surface of the load-bearing base 410 is connected to the load-bearing column 411, and the upper end surface of the load-bearing column 411 is connected to the lifting drive mechanism 413 and is connected to the protective top plate 412 through the lifting drive mechanism 413. The load-bearing base 410, the load-bearing column 411, the protective top plate 412, and the lifting drive mechanism 413 are coaxially distributed. There are at least three auxiliary load-bearing columns 414, which are respectively connected to the outer side surfaces of the load-bearing base 410 and the protective top plate 412 and are evenly distributed around the axis of the load-bearing column 411. There are at least three annular drive guide rails 415. One of the annular drive guide rails 415 is connected to the upper end surface of the load-bearing base 410 and is coaxially distributed with the load-bearing column 411. At least one annular drive guide rail 415 coaxial with the outer side surface of the load-bearing column 411 is provided, and another annular drive guide rail 415 is provided at the position of the auxiliary load-bearing column 414 corresponding to the annular drive guide rail 415 connected to the load-bearing column 411. There are several trays 417, which are connected to the upper end surface of the load-bearing base 410 through the annular drive guide rail 415. The heat storage tank 46, the battery pack 47, and the hydrogen storage tank 48 are respectively slidably connected to the load-bearing base 410 through the tray 417. At the same time, the heat storage tank 46, the battery pack 47, and the hydrogen storage tank 48 are respectively slidably connected to the annular drive guide rails 415 connected to the load-bearing column 411 and the auxiliary load-bearing column 414 through the slider 416. The lifting drive mechanism 413 and the annular drive guide rail 414 are both electrically connected to the control circuit 49.

[0022] See Figure 5The heat storage tank 46 includes a storage tank body 461, an electric heating mechanism 462, a heat storage medium 463, a circulating heat-conducting medium 464, a heat exchanger 465, and a temperature sensor 466. The storage tank body 461 is a closed cavity structure, and a feeding port 467 is provided on its upper end surface, and two circulation ports 468 are provided on its lower end surface. The two circulation ports 468 are connected to the heat exchange mechanism 45 through the hydraulic circulation pipeline 40, and one of the circulation ports 468 is connected to the hydraulic circulation pipeline 40 through the circulation pump 42. At least one of the heat exchangers 465 is located in the storage tank body 461 and is coaxially distributed with the storage tank body 461, and is connected to the two circulation ports 468. The heat exchanger 461 forms a closed circulation pipeline through the hydraulic circulation pipeline 40 and the heat exchange mechanism 45. The electric heating mechanisms 462 are multiple and embedded in the inner side of the storage tank body 461 and evenly distributed around the axis of the storage tank body 461. At least one temperature sensor 466 is located in the storage tank body 461 and connected to the top of the storage tank body 461. The heat storage medium 463 is located in the storage tank body 461 and is coated on the outside of the heat exchanger 465. The electric heating mechanism 462 and the temperature sensor 466 are both electrically connected to the control circuit 49. The circulating heat-conducting medium 464 is located in the heat exchanger 465, the hydraulic circulation pipeline 40 and the heat exchange mechanism 45.

[0023] See also Figure 6 The heat exchange mechanism 45 includes a heat exchange tube 451, a heat conducting plate 452, a heat preservation protective cover 453, a heat conducting metal spring 454, and an elastic pad 455. The heat exchange tubes 451 are multiple, and each heat exchange tube 451 is connected to each other through the elastic pad 455 and distributed in the same plane. At the same time, the axis of each heat exchange tube 451 is parallel to the horizontal plane. The heat preservation protective cover 453 is a groove structure with a "凵" shape in cross section, which is covered outside each heat exchange tube 451, and each heat exchange tube 461 is connected to the groove bottom of the heat preservation protective cover 453 through at least three elastic pads 455 evenly distributed along its axis. The heat conducting plate 452 is embedded in the notch of the slot body of the heat preservation protective cover 453, and its plate surface is parallel to each heat exchange tube 451. At the same time, each heat exchange tube 451 is connected to the rear end surface of the heat conducting plate 452 through a plurality of heat conducting metal springs 454, and the spacing between the heat conducting plate 452 and the heat exchange tube 451 is 0-10 mm. At the same time, the heat conducting plate 451 is slidably connected to the inner side of the heat preservation protective cover 453 through an elastic pad 455. At the same time, the outer side of the heat preservation protective cover 453 is further provided with a plurality of connecting blocks 456 evenly distributed around its axis, and the axis of the connecting block 456 is perpendicular to the plate surface of the heat conducting plate 452.

[0024] Further optimized, the control circuit 49 is a circuit based on a programmable controller. At the same time, the control circuit is also equipped with any one or more of a display, a keyboard, a potentiometer, a multi-stage switch, an instrument, and a knob switch, including but not limited to.

[0025] In this embodiment, the scheduling server 1 is a data server platform based on cloud computing, and a distributed data storage mechanism is provided; the data acquisition terminal 3 is a circuit system based on DSP and FPGA chips, and the data acquisition terminal 3 is further provided with at least one serial communication port and at least one wireless communication module.

[0026] The system of the present invention has a high degree of integration and modularization, can effectively meet the needs of hydrogen production work with various production capacities and production requirements, and has good adaptability and versatility; at the same time, during operation, various factors such as market demand, equipment production capacity, and energy supply are effectively coordinated and planned, effectively improving the continuity and stability of hydrogen production, while greatly improving production efficiency. At the same time, during operation, the recycling efficiency of energy can be effectively improved, thus greatly reducing production costs, improving the comprehensive utilization rate of resources, and improving the stability and continuity of the operation of production equipment.

[0027] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An optimization and regulation method for hydrogen production from renewable energy, characterized in that The optimization regulation method for hydrogen production from renewable energy includes the following steps: S1. Data collection: First, collect the single-unit hydrogen production volume and operating power of the hydrogen generator equipment used for hydrogen production; simultaneously collect the overall efficiency and production capacity requirements of hydrogen production; then select the types and power generation efficiencies of the renewable energy equipment participating in the hydrogen production operation; also collect the structural data of the hydrogen production site; finally, on the one hand, calculate the minimum energy demand to ensure stable hydrogen production based on the operating parameters and theoretical hydrogen production of the hydrogen generator equipment; on the other hand, count and calculate the minimum power supply and maximum power supply of each renewable energy equipment under extreme conditions, and calculate the average power supply. S2. System construction: According to the structural data of the hydrogen production site collected in S1, respectively arrange the areas of the hydrogen generator equipment and the renewable energy equipment, and set up a power adjustment system for the renewable energy equipment to provide electrical and thermal energy for the hydrogen generator; then, on the one hand, based on the current hydrogen market demand output and the theoretical hydrogen production in S1, set the operating efficiency and power demand of each hydrogen generator equipment, and summarize and calculate the operating efficiency and power demand required for the overall operation of each hydrogen generator equipment; on the other hand, calculate the current power generation and efficiency of each renewable energy equipment and the total power generation and power generation efficiency of each renewable energy equipment according to the conditions of each renewable energy equipment, raw material costs, and natural environment factors; finally, on the one hand, summarize the operating efficiency and power demand of each hydrogen generator equipment and the current power generation and efficiency of each renewable energy equipment in the same curve graph for statistics, and on the other hand, summarize the operating efficiency and power demand required for the overall operation and the total power generation and power generation efficiency data of the renewable energy equipment in the same curve graph for statistics, so as to obtain the single-equipment operating efficiency statistical table and the overall system operating efficiency statistical table. S3. Hydrogen production operation: After completing S2, set the hydrogen production volume according to market needs and keep the hydrogen production volume at a level not greater than 95% of the theoretical hydrogen production volume, and select the specific hydrogen generators participating in the production according to actual production needs and set the actual production capacity of each hydrogen generator. The hydrogen generators not participating in the production are in standby state for backup; then drive the overall operation of the renewable energy equipment according to the electrical energy required for production activities, and divide the renewable energy equipment participating in the operation into a main power supply group and an auxiliary power supply group. Among them, the renewable energy equipment in the main power supply group operates and generates electricity at an efficiency of 80% - 90% to provide electrical energy for the hydrogen generators participating in production activities; the total renewable energy equipment in the auxiliary power supply group operates and generates electricity at an efficiency of 5% - 10%, and the electrical energy generated is used to supply the power demand of non-production system equipment. Meanwhile, during the production process, on the one hand, the hydrogen generators participating in production are alternately replaced for maintenance and equipment maintenance with the hydrogen generators in standby state; on the other hand, the renewable energy equipment in the main power supply group and the auxiliary power supply group adopts alternate replacement maintenance and operation. Moreover, during the replacement of the renewable energy equipment, first, the power generation of the renewable energy equipment in the auxiliary power supply group is increased to the maximum power generation that meets the production needs and is connected to the power supply system of the hydrogen generators participating in production. Then, the power generation of the renewable energy equipment that needs to be repaired and maintained is gradually reduced until it stops completely, and after the repair is completed, it is added to the auxiliary power supply group to operate again.

2. The optimization adjustment method for hydrogen production from renewable energy according to claim 1, wherein, In the S2 step, in the individual equipment operation efficiency statistical table, the intersection point of the operation curve of the hydrogen generator equipment and the operation curve of the renewable energy equipment is regarded as the optimal balance operation value. Then, a specific optimal balance operation value is selected to guide the subsequent hydrogen production operation, and the optimal balance operation value coordinates the operation states of each hydrogen generator and renewable energy equipment.

3. The optimization adjustment method for hydrogen production from renewable energy according to claim 1 is characterized in that, In the S2 step, the power regulation system includes a dispatching server, a data communication network, data acquisition terminal machines, and a resource comprehensive coordination agency. Among them, the dispatching server establishes data connections with the data acquisition terminal machines and the resource comprehensive coordination agency respectively through the data communication network. There are several data acquisition terminal machines, which are respectively connected to each hydrogen generator and renewable energy equipment for data communication. There are at least two resource comprehensive coordination agencies, which are connected in parallel with each other and are respectively connected to each hydrogen generator and renewable energy equipment.

4. The optimization regulation method for hydrogen production from renewable energy according to claim 3, characterized in that, The resource comprehensive coordination agency includes a load-bearing keel, a circulation pump, a pressure regulating pump, a booster pump, a heat exchange mechanism, a heat storage tank, a battery pack, a hydrogen storage tank, a control circuit, a hydraulic circulation pipeline, a hydrogen diversion pipeline, and a rectifier circuit system. Among them, the load-bearing keel is a frame structure with an axis perpendicular to the horizontal plane and an axial cross-section in the shape of an "I". There is at least one heat storage tank, battery pack, and hydrogen storage tank, which are respectively located in the groove bodies on the side walls of the load-bearing keel and are evenly distributed around the axis of the load-bearing keel. Among them, the hydrogen storage tank is connected to the hydrogen diversion pipeline through a booster pump, and the booster pump is connected to each hydrogen generator through the hydrogen diversion pipeline. At the same time, the hydrogen storage tank is also connected to a pressure regulating pump, and the pressure regulating pump is connected to external equipment and renewable energy equipment through the hydrogen diversion pipeline. The battery pack is electrically connected to each hydrogen generator and renewable energy equipment respectively through the rectifier circuit system. On the one hand, the heat storage tank is connected to the hydraulic circulation pipeline through a circulation pump, and the hydraulic circulation pipeline is connected to each hydrogen generator and renewable energy equipment through the heat exchange mechanism. The rectifier circuit system and the control circuit are both located inside the bottom of the load-bearing keel, and the control circuit is also electrically connected to the circulation pump, pressure regulating pump, booster pump, heat exchange mechanism, heat storage tank, battery pack, and rectifier circuit system respectively.

5. The optimization adjustment method for hydrogen production from renewable energy according to claim 4, characterized in that The load-bearing keel includes a load-bearing base, load-bearing columns, a protective top plate, a lifting drive mechanism, auxiliary load-bearing columns, a circular drive guide rail, trays, and sliders. The load-bearing base and the protective top plate are both disc-shaped structures, and the protective top plate is located directly above the load-bearing base and is coaxially distributed with the load-bearing base. The upper end surface of the load-bearing base is connected to the load-bearing columns, the upper end surface of the load-bearing columns is connected to the lifting drive mechanism and is connected to the protective top plate through the lifting drive mechanism, and the load-bearing base, load-bearing columns, protective top plate, and lifting drive mechanism are coaxially distributed. There are at least three auxiliary load-bearing columns, which are respectively connected to the outer side surfaces of the load-bearing base and the protective top plate and are evenly distributed around the axis of the load-bearing columns. There are at least three circular drive guide rails. One circular drive guide rail is connected to the upper end surface of the load-bearing base and is coaxially distributed with the load-bearing columns. At least one circular drive guide rail coaxial with the outer side surface of the load-bearing columns is provided, and another circular drive guide rail is provided at the position of the auxiliary load-bearing column corresponding to the circular drive guide rail connected to the load-bearing columns. There are several trays, which are connected to the upper end surface of the load-bearing base through the circular drive guide rails. The heat storage tank, battery pack, and hydrogen storage tank are respectively slidably connected to the load-bearing base through the trays. At the same time, the heat storage tank, battery pack, and hydrogen storage tank are respectively slidably connected to the circular drive guide rails connected to the load-bearing columns and auxiliary load-bearing columns through the sliders. The lifting drive mechanism and the circular drive guide rail are both electrically connected to the control circuit.

6. The optimized adjustment method for hydrogen production from renewable energy according to claim 4, characterized in that The heat storage tank includes a storage tank body, an electric heating mechanism, a heat storage medium, a circulating heat conduction medium, a heat exchanger, and a temperature sensor. The storage tank body is a closed cavity structure, with a feeding port provided on its upper end surface and two circulation ports provided on its lower end surface. The two circulation ports are communicated with the heat exchange mechanism through a hydraulic circulation pipeline. At the same time, one of the circulation ports is communicated with the hydraulic circulation pipeline through a circulation pump. There is at least one heat exchanger, which is located inside the storage tank body and is coaxially distributed with the storage tank body, and is communicated with the two circulation ports. The heat exchanger and the heat exchange mechanism form a closed circulation pipeline through the hydraulic circulation pipeline. There are several electric heating mechanisms, which are embedded in the inner side surface of the storage tank body and are evenly distributed around the axis of the storage tank body. There is at least one temperature sensor, which is located inside the storage tank body and is connected to the top of the storage tank body. The heat storage medium is located inside the storage tank body and covers the outside of the heat exchanger. The electric heating mechanism and the temperature sensor are both electrically connected to the control circuit. The circulating heat conduction medium is located inside the heat exchanger, hydraulic circulation pipeline, and heat exchange mechanism.

7. An optimization adjustment method for hydrogen production from renewable energy according to claim 4, characterized in that, The heat exchange mechanism includes a heat exchange tube, a heat conduction plate, a heat preservation protective cover, a heat conduction metal spring piece, and an elastic pad. There are several heat exchange tubes, and each heat exchange tube is connected to each other through an elastic pad and distributed within the same plane. At the same time, the axis of each heat exchange tube is distributed parallel to the horizontal plane. The heat preservation protective cover is a "凵"-shaped groove structure with a cross section, which is coated on the outside of each heat exchange tube, and each heat exchange tube is connected to the groove bottom of the heat preservation protective cover through at least three elastic pads evenly distributed along its axial direction. The heat conduction plate is embedded in the groove of the heat preservation protective cover groove body, and its plate surface is distributed parallel to each heat exchange tube. At the same time, each heat exchange tube is connected to the rear end face of the heat conduction plate through a number of heat conduction metal spring pieces, and the spacing between the heat conduction plate and the heat exchange tube is 0-10 mm. At the same time, the heat conduction plate is slidably connected to the inner side of the heat preservation protective cover through an elastic pad. At the same time, the outer side of the heat preservation protective cover is provided with a number of connection blocks evenly distributed around its axis, and the axis of the connection block is vertically distributed to the plate surface of the heat conduction plate.

8. An optimization adjustment method for hydrogen production from renewable energy according to claim 4, characterized in that, The control circuit is a circuit based on a programmable controller. At the same time, the control circuit is also equipped with any one or more of a display, a keyboard, a potentiometer, a multi-stage switch, an instrument, and a knob switch, but not limited to the display, a keyboard, a potentiometer, a multi-stage switch, and a knob switch.

9. The optimized adjustment method for hydrogen production from renewable energy according to claim 1, characterized in that, The dispatch server is a data server platform based on cloud computing and is provided with a distributed data storage mechanism; the data acquisition terminal is a circuit system based on DSP and FPGA chips, and the data acquisition terminal is also provided with at least one serial communication port and at least one wireless communication module.

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