Steam-electricity hybrid thermodynamic system of steam production line and control method
Through the steam-electric hybrid thermal system, energy use is optimized during peak and valley power, which solves the problem of high steam generation cost in corrugated cardboard production, and achieves energy conservation, emission reduction and cost reduction.
Patent Information
- Application Number
- CN202510743538.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-08-12
AI Technical Summary
In the production of corrugated cardboard, the cost of using electric boilers or natural gas boilers to generate saturated steam is high, and enterprises face large costs when installing and maintaining the two boilers, making it difficult to achieve energy conservation and emission reduction.
A steam-electric hybrid thermal system is adopted, including the main steam pipe, return water pipe, water storage tank and electromagnetic steam generator. By combusting natural gas during peak electricity, steam is generated by heating condensate during valley electricity, steam is formed again by heating condensate during valley electricity, combining proportional control valves and sensors to achieve energy optimization.
It reduces the cost of producing saturated steam, achieves energy conservation and emission reduction, and reduces the production costs of enterprises.
Smart Images
Figure CN120466633A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of steam application production equipment, and in particular to a steam-electric hybrid thermal system and a control method for a steam production line. Background Art
[0002] The corrugated cardboard production process requires saturated steam to heat the corrugated cardboard, corrugating rollers, and hot platens. Typically, saturated steam is generated by burning natural gas in a boiler. Producing one ton of saturated steam consumes approximately 75 to 80 cubic meters of natural gas. With industrial natural gas prices ranging from 4 to 5 yuan per cubic meter, depending on the region, the cost of producing one ton of saturated steam is approximately 350 to 400 yuan. Using an electromagnetic steam generator to directly heat high-temperature condensate to produce the same amount of saturated steam would require approximately 540 to 580 kWh of electricity. However, there is a significant difference between peak and off-peak electricity prices for industrial use, ranging from 0.25 to 1.2 yuan per kWh, and electricity pricing policies vary across provinces. During peak hours, the cost of producing one ton of saturated steam using an electric boiler is approximately 900 yuan, while during off-peak hours, the cost can drop to 150 yuan or even less. Clearly, using an electric boiler to generate saturated steam full-time would be significantly more expensive than using a natural gas boiler. In light of this, some have proposed using a hybrid electric method to generate saturated steam. This involves burning natural gas during peak hours and utilizing lower off-peak electricity prices at night. However, the installation and maintenance costs of both natural gas and electric boilers are substantial, which also goes against the company's energy conservation and emission reduction goals. Summary of the Invention
[0003] In order to overcome the above-mentioned shortcomings in the prior art, the present invention provides a steam-electric hybrid thermal system for a steam production line, which solves the shortcomings of the prior art.
[0004] In order to solve the above problems, the present invention provides a steam-electric hybrid thermal system for a steam production line, comprising a main steam pipe, a return water main, a water tank for recovering condensed water and at least one group of steam units for the production line, each group of the steam units for the production line comprising at least one high-temperature steam component and at least one low-temperature steam component; it is characterized in that: each group of the steam units for the production line is equipped with an electromagnetic steam generator and a high-temperature water storage tank, the main steam pipe is connected to each of the high-temperature steam components through a steam distribution pipe, the steam inlet of the high-temperature steam component is connected to the steam distribution pipe through a first steam branch pipe; the drain outlet of the high-temperature steam component is connected to the return water distribution pipe through a first return water branch pipe; the return water distribution pipe is connected to the water inlet of the high-temperature water storage tank, the steam outlet of the high-temperature water storage tank is connected to the steam inlet of the low-temperature component through a second steam branch pipe, and the lower part of the high-temperature water storage tank is connected to the electromagnetic steam generator through a circulating water pipe The steam inlet of the electromagnetic steam generator is connected, and the steam outlet of the electromagnetic steam generator is connected to the steam distribution pipe through the third steam branch pipe; the lower part of the high-temperature water storage tank is connected to the return water main pipe through the third return water branch pipe; a proportional control steam inlet main valve is provided on the steam distribution pipe, and the proportional control steam inlet main valve is located between the main steam pipe and the steam unit of the production line; a first pneumatic valve is provided on the first steam branch pipe, and the first pneumatic valve is located between the steam distribution pipe and the high-temperature steam component; a third pneumatic valve is provided on the third steam branch pipe, and the third pneumatic valve is located between the electromagnetic steam generator and the steam distribution pipe; a first steam trap is provided on the first return water branch pipe, and the first steam trap is located between the high-temperature steam component and the return water distribution pipe; a drainage pneumatic valve is provided on the third return water branch pipe, and the drainage pneumatic valve is located between the high-temperature water storage tank and the return water main pipe.
[0005] Each group of the production line steam units also includes at least one low-temperature steam component, and the low-temperature steam component includes at least one low-temperature component. The water outlet of the low-temperature component is connected to the return water main through a second return water branch pipe, and the return water main pipe is connected to the water storage tank; a second pneumatic valve is provided on the second steam branch pipe, and the second pneumatic valve is located between the high-temperature water storage tank and the low-temperature component; a second steam trap is provided on the second return water branch pipe, and the second steam trap is located between the low-temperature steam component and the return water main pipe.
[0006] The electromagnetic steam generator is arranged at the lower part of the control box, an electromagnetic controller is arranged at the upper part of the control box, an insulation layer for heat insulation is arranged inside the control box, and the insulation layer is located between the electromagnetic steam generator and the electromagnetic controller.
[0007] The electromagnetic steam generator is provided with a liquid level detection electrode for detecting the height of the liquid level.
[0008] The electromagnetic steam generator is provided with a heating body temperature sensor for real-time monitoring of the heating body temperature.
[0009] The steam distribution pipe is provided with a plurality of real-time temperature sensors and real-time pressure sensors.
[0010] The high-temperature water storage tank is provided with a real-time pressure sensor.
[0011] The steam distribution pipe is connected to the second steam branch pipe through a steam compensation pipe, and a compensation proportional control valve is provided on the steam compensation pipe. A high-temperature tank temperature sensor for real-time monitoring is provided on the second steam branch pipe, and the high-temperature tank temperature sensor is close to the steam outlet of the high-temperature water storage tank.
[0012] The high-temperature water storage tank is provided with a liquid level detection device for detecting the liquid level.
[0013] A high-temperature water pump and a check valve are provided on the circulating water pipe. The high-temperature water pump is close to the electromagnetic steam generator, and the check valve is close to the high-temperature water storage tank.
[0014] A drain valve is provided at the bottom of the high-temperature water storage tank.
[0015] The present invention also provides a control method for a steam-electric hybrid thermal system, including a control mainboard, which communicates data with a factory transformer; a capacity monitor for real-time monitoring of the transformer's dynamic capacity is provided at the transformer end; the capacity monitor transmits the collected transformer dynamic capacity to a processor of the control mainboard in real time; the control mainboard communicates data with a proportional control steam inlet main valve, an electromagnetic steam generator, a real-time pressure sensor, and a real-time temperature sensor respectively; during off-peak power periods, the processor uses all the idle capacity of the transformer for heating the electromagnetic steam generator to generate saturated high-temperature steam based on the collected transformer dynamic capacity; through data analysis fed back by the real-time pressure sensor and the real-time temperature sensor, the opening and closing degree of the proportional control steam inlet main valve is controlled on the premise of meeting the pressure and temperature required by the steam unit of the production line, thereby reducing the usage of saturated high-temperature steam in the main steam pipe.
[0016] The present invention has the following advantages: When using the system, during peak power periods, saturated steam is generated by burning natural gas in a steam boiler. This saturated steam heats gas-consuming components, consuming natural gas as the energy. During off-peak power periods, the main steam pipe is closed or turned down, and the electromagnetic steam generator reheats the high-temperature condensate discharged from the production line's steam-consuming units, regenerating it into saturated steam. This saturated steam heats the steam-consuming components, consuming electricity as the energy. By combining steam and electricity, the present invention reduces the cost of producing saturated steam, achieving energy conservation, emission reduction, and lowering production costs for enterprises. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the system structure of Example 1 of the present invention;
[0018] Figure 2 This is a schematic diagram of the system structure of Embodiment 2 of the present invention;
[0019] Figure 3 It is a structural schematic diagram of the steam unit for the production line of the present invention.
[0020] In the figure: 1 - main steam pipe, 2 - return water main pipe, 3 - water storage tank, 4 - high-temperature steam components, 5 - low-temperature steam components, 6 - electromagnetic steam generator, 7 - steam distribution pipe, 8 - first steam branch pipe, 9 - first return water branch pipe, 10 - return water distribution pipe, 12 - low-temperature components, 13 - high-temperature water storage tank, 14 - second steam branch pipe, 15 - second return water branch pipe, 16 - circulating water pipe, 17 - third steam branch pipe, 18 - third return water branch pipe, 19 - proportional control steam inlet main valve, 20 - first pneumatic valve, 21 ——Second pneumatic valve, 22——Third pneumatic valve, 23——First steam trap, 24——Second steam trap, 25——Drainage pneumatic valve, 26——Control box, 27——Electromagnetic controller, 28——Thermal insulation layer, 29——Liquid level detection electrode, 30——Heating body temperature sensor, 31——Real-time temperature sensor, 32——Real-time pressure sensor, 33——Steam compensation pipe, 34——Compensation proportional control valve, 35——High-temperature tank temperature sensor, 36——Liquid level detection device, 37——High-temperature water pump, 38——Check valve, 39——Drain valve. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.
[0022] Example 1
[0023] See Figure 1Taking the corrugated paper production line as an example, a steam-electric hybrid thermal system of a steam production line includes a main steam pipe 1, a return water main 2, a water storage tank 3 for recovering condensed water, and at least one set of production line steam units. Each set of production line steam units includes at least one high-temperature steam component 4, where the high-temperature steam component 4 is a small cylinder component; each set of production line steam units is equipped with an electromagnetic steam generator 6 and a high-temperature water storage tank 13. The high-temperature water storage tank 13 is provided with a pressure relief valve at the outlet to ensure that the pressure of the high-temperature water storage tank 13 is lower than the pressure in the steam distribution pipe 7, so that the high-temperature water in the steam distribution pipe 7 can flow smoothly into the high-temperature water storage tank. The main steam pipe 1 is connected to each high-temperature steam component 4 through the steam distribution pipe 7, and the steam inlet of the high-temperature steam component 4 is connected to the steam distribution pipe 7 through the first steam branch pipe 8; the drain outlet of the high-temperature steam component 4 is connected to the return water distribution pipe 10 through the first return water branch pipe 9, and the return water distribution pipe 10 is connected to the water inlet of the high-temperature water storage tank 13. The steam outlet of the high-temperature water storage tank 13 is connected to the steam inlet of the low-temperature component 12 through the second steam branch pipe 14. The water outlet of the low-temperature component 12 is connected to the return water main pipe 2 through the second return water branch pipe 15, and the return water main pipe 2 is connected to the water storage tank 3; the high-temperature water storage tank 1 The lower part of the high-temperature water storage tank 13 is connected to the steam inlet of the electromagnetic steam generator 6 through the circulating water pipe 16, and the steam outlet of the electromagnetic steam generator 6 is connected to the steam distribution pipe 7 through the third steam branch pipe 17; the lower part of the high-temperature water storage tank 13 is connected to the return water main 2 through the third return water branch pipe 18; the steam distribution pipe 7 is provided with a proportional control steam inlet main valve 19, which automatically opens the valve size according to the steam consumption. The proportional control steam inlet main valve 19 is located between the main steam pipe 1 and the steam unit of the production line; the first steam branch pipe 8 is provided with a first pneumatic valve 20, which is located at the steam distribution pipe 7. A second pneumatic valve 21 is provided on the second steam branch pipe 14 between the pipe 7 and the high-temperature steam component 4, and the second pneumatic valve 21 is located between the high-temperature water storage tank 13 and the low-temperature component 5. A third pneumatic valve 22 is provided on the third steam branch pipe 17, and the third pneumatic valve 22 is located between the electromagnetic steam generator 6 and the steam distribution pipe 7; a first steam trap 23 is provided on the first return water branch pipe 9, and the first steam trap 23 is located between the high-temperature steam component 4 and the return water distribution pipe 10, and a drainage pneumatic valve 25 is provided on the third return water branch pipe 18, and the drainage pneumatic valve 25 is located between the high-temperature water storage tank 13 and the return water main pipe 2.
[0024] Preferably, the electromagnetic steam generator 6 is provided with a liquid level detection electrode 29 for detecting the height of the liquid level.
[0025] Preferably, the electromagnetic steam generator 6 is provided with a heating body temperature sensor 30 for real-time monitoring of the heating body temperature. When the heating body temperature sensor 30 monitors that the temperature is higher than the preset temperature, a warning alarm is issued. At this time, the electromagnetic steam generator 6 may be in a water shortage state and needs to be replenished with water.
[0026] Preferably, a number of real-time temperature sensors 31 and real-time pressure sensors 32 are provided on the steam distribution pipe 7. The real-time temperature sensor 31 monitors the steam temperature in the steam distribution pipe 7 in real time. The control system will adjust the valve size of the proportional control steam inlet main valve 19 according to the steam temperature in the steam distribution pipe 7, that is, adjust the amount of steam entering the steam distribution pipe 7 from the main steam pipe 1.
[0027] Preferably, a real-time pressure sensor 32 is provided on the high-temperature water storage tank 13, and the real-time pressure sensor 32 monitors the pressure of the high-temperature water storage tank 13 to ensure that the pressure of the high-temperature water storage tank 13 is lower than the pressure in the steam distribution pipe 7, so that the high-temperature water in the steam distribution pipe 7 can flow smoothly into the high-temperature water storage tank 13.
[0028] Preferably, the steam distribution pipe 7 is connected to the second steam branch pipe 14 via a steam compensation pipe 33. A compensation proportional control valve 34 is provided on the steam compensation pipe 33. A high-temperature tank temperature sensor 35 for real-time monitoring is also provided on the second steam branch pipe 14. The high-temperature tank temperature sensor 35 is located near the steam outlet of the high-temperature water storage tank 13. When the high-temperature tank temperature sensor 35 detects that the temperature of the steam output from the high-temperature water storage tank 13 is lower than a preset temperature, the control system controls the compensation proportional control valve 34 to open proportionally, replenishing the high-temperature steam from the steam distribution pipe 7 to the low-temperature steam-consuming components 5, ensuring that the temperature of the low-temperature steam-consuming components 5 reaches the operating temperature.
[0029] Preferably, the high-temperature water storage tank 13 is provided with a liquid level detection device 36 for detecting the height of the liquid level.
[0030] Preferably, a high-temperature water pump 37 and a check valve 38 are provided on the circulating water pipe 16. The high-temperature water pump 37 is close to the electromagnetic steam generator 6, and the check valve 38 is close to the high-temperature water storage tank 13. The high-temperature water pump 37 delivers high-temperature water from the high-temperature water storage tank 13 to the electromagnetic steam generator 6 for electromagnetic heating. The check valve 38 prevents the high-temperature steam from the electromagnetic steam generator 6 from flowing back into the high-temperature water storage tank 13 when the high-temperature water pump 37 stops working.
[0031] Preferably, a drain valve 39 is provided at the bottom of the high-temperature water storage tank 13 , through which sewage or other impurities in the high-temperature water storage tank 13 can be discharged.
[0032] Working principle: After using the system of the present invention, during peak power periods, saturated steam is generated by burning natural gas in a steam boiler, and the saturated steam heats the steam units of the production line. The energy consumed at this time is natural gas; during valley power periods, the proportionally controlled steam inlet main valve 19 is closed or turned down, and the electromagnetic steam generator 6 reheats the high-temperature condensate discharged from the steam units of the production line to form saturated steam again. The saturated steam heats the steam-using components, and the energy consumed at this time is electrical energy.
[0033] When the power grid switches back to peak power, the electromagnetic steam generator 6 is turned off and the above-mentioned operation of burning natural gas to generate saturated steam is repeated.
[0034] Example 2
[0035] See Figure 2 Taking the corrugated paper production line as an example, a steam-electric hybrid thermal system of a steam production line includes a main steam pipe 1, a return water main 2, a water storage tank 3 for recovering condensed water, and at least one group of production line steam units. Each group of production line steam units includes at least one high-temperature steam component 4 and at least one low-temperature steam component 5. Here, the high-temperature steam component 4 is a small cylinder component, and the low-temperature steam component 5 is a large cylinder component; each group of production line steam units is equipped with an electromagnetic steam generator and a high-temperature water storage tank 6. The main steam pipe 1 is connected to each high-temperature steam component 4 through a steam distribution pipe 7. The steam inlet of the high-temperature steam component 4 is connected to the first steam branch pipe. 8 is connected to the steam distribution pipe 7; the drain outlet of the high-temperature steam component 4 is connected to the return water distribution pipe 10 through the first return water branch pipe 9; the low-temperature steam component 5 includes at least one low-temperature component 12 and a high-temperature water storage tank 13, the return water distribution pipe 10 is connected to the water inlet of the high-temperature water storage tank 13, the steam outlet of the high-temperature water storage tank 13 and the steam inlet of the low-temperature component 12 are connected through the second steam branch pipe 14, the water outlet of the low-temperature component 12 is connected to the return water main 2 through the second return water branch pipe 15, and the return water main 2 is connected to the water storage tank 3; the lower part of the high-temperature water storage tank 13 is connected to the steam inlet of the electromagnetic steam generator 6 through the circulating water pipe 16, and the electromagnetic steam generator 6 is connected to the return water main 2. The steam outlet of the magnetic steam generator 6 is connected to the steam distribution pipe 7 through the third steam branch pipe 17; the lower part of the high-temperature water storage tank 13 is connected to the return water main 2 through the third return water branch pipe 18; a proportional control steam inlet main valve 19 is provided on the steam distribution pipe 7, and the proportional control steam inlet main valve 19 automatically opens the valve size according to the amount of steam used, and the proportional control steam inlet main valve 19 is located between the main steam pipe 1 and the steam unit of the production line; a first pneumatic valve 20 is provided on the first steam branch pipe 8, and the first pneumatic valve 20 is located between the steam distribution pipe 7 and the high-temperature steam component 4, and a second pneumatic valve 21 is provided on the second steam branch pipe 14, and the second pneumatic valve 22 is provided on the second steam branch pipe 14. A pneumatic valve 21 is located between the high-temperature water storage tank 13 and the low-temperature component 5. A third pneumatic valve 22 is provided on the third steam branch 17. The third pneumatic valve 22 is located between the electromagnetic steam generator 6 and the steam distribution pipe 7. A first steam trap 23 is provided on the first return water branch 9. The first steam trap 23 is located between the high-temperature steam component 4 and the return water distribution pipe 10. A second steam trap 24 is provided on the second return water branch 15. The second steam trap 24 is located between the low-temperature steam component 5 and the return water main 2. A drainage pneumatic valve 25 is provided on the third return water branch 18. The drainage pneumatic valve 25 is located between the high-temperature water storage tank 13 and the return water main 2.
[0036] The other structures are the same as those in Example 1 and will not be described again here.
[0037] See Figure 3 In one embodiment, the electromagnetic steam generator 6 is disposed below a control box 26, an electromagnetic controller 27 is disposed above the control box 26, and an insulation layer 28 is disposed inside the control box 26 for heat insulation, with the insulation layer 28 being located between the electromagnetic steam generator 6 and the electromagnetic controller 27. In this embodiment, the electromagnetic steam generator 6 and the control box 26 are configured as an integrated modular structure, which facilitates installation and use by the user.
[0038] The present invention also provides a control method for a steam-electric hybrid thermal system, including a control main board, which communicates data with the factory's transformer, and a capacity monitor for real-time monitoring of the transformer's dynamic capacity is provided at the transformer end, and the capacity monitor transmits the collected transformer dynamic capacity to the processor of the control main board in real time; the control main board communicates data with the proportional control steam inlet main valve, the electromagnetic steam generator 6, the real-time pressure sensor 31 and the real-time temperature sensor 31 respectively; during the off-peak period, the processor uses all the idle capacity of the transformer for heating the electromagnetic steam generator 6 to generate saturated high-temperature steam based on the collected transformer dynamic capacity, and through data analysis fed back by the real-time pressure sensor and the real-time temperature sensor, the opening and closing degree of the proportional control steam inlet main valve 19 is controlled on the premise of meeting the pressure and temperature required by the steam unit of the production line, thereby reducing the use of saturated high-temperature steam in the main steam pipe 1.
[0039] The off-peak period mentioned in this application does not specifically refer to nighttime electricity consumption. As long as the system determines that the current cost of using the electromagnetic steam generator 6 to heat and generate saturated high-temperature steam is lower than the cost of natural gas steam production, it can be considered as an off-peak period. The steam-electric hybrid thermal system of the present invention is combined with the control system and method. On the premise of meeting the electricity consumption of the enterprise's production equipment, within the capacity of the enterprise's transformer, it maximizes the use of electricity to produce steam, thereby reducing the enterprise's steam consumption cost.
[0040] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A steam-electric hybrid thermal system for a steam production line, comprising a main steam pipe, a return water main, a water storage tank for recovering condensed water, and at least one set of production line steam units, each set of production line steam units comprising at least one high-temperature steam component and at least one low-temperature steam component; characterized in that: Each group of steam units for the production line is equipped with an electromagnetic steam generator and a high-temperature water storage tank, the main steam pipe is connected to each of the high-temperature steam components through a steam distribution pipe, the steam inlet of the high-temperature steam component is connected to the steam distribution pipe through a first steam branch pipe; the drain outlet of the high-temperature steam component is connected to the return water distribution pipe through a first return water branch pipe; the return water distribution pipe is connected to the water inlet of the high-temperature water storage tank, the steam outlet of the high-temperature water storage tank is connected to the steam inlet of the low-temperature component through a second steam branch pipe, the lower part of the high-temperature water storage tank is connected to the steam inlet of the electromagnetic steam generator through a circulating water pipe, and the steam outlet of the electromagnetic steam generator is connected to the steam distribution pipe through a third steam branch pipe; the lower part of the high-temperature water storage tank is connected to the steam inlet of the electromagnetic steam generator through a third steam branch pipe. Three return water branches are connected to the return water main pipe; a proportional control steam inlet main valve is provided on the steam distribution pipe, and the proportional control steam inlet main valve is located between the main steam pipe and the steam unit of the production line; a first pneumatic valve is provided on the first steam branch pipe, and the first pneumatic valve is located between the steam distribution pipe and the high-temperature steam-using components; a third pneumatic valve is provided on the third steam branch pipe, and the third pneumatic valve is located between the electromagnetic steam generator and the steam distribution pipe; a first steam trap is provided on the first return water branch pipe, and the first steam trap is located between the high-temperature steam-using components and the return water distribution pipe; a drainage pneumatic valve is provided on the third return water branch pipe, and the drainage pneumatic valve is located between the high-temperature water storage tank and the return water main pipe.
2. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: Each group of the production line steam units also includes at least one low-temperature steam component, and the low-temperature steam component includes at least one low-temperature component. The water outlet of the low-temperature component is connected to the return water main through a second return water branch pipe, and the return water main pipe is connected to the water storage tank; a second pneumatic valve is provided on the second steam branch pipe, and the second pneumatic valve is located between the high-temperature water storage tank and the low-temperature component; a second steam trap is provided on the second return water branch pipe, and the second steam trap is located between the low-temperature steam component and the return water main pipe.
3. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The electromagnetic steam generator is arranged at the lower part of the control box, an electromagnetic controller is arranged at the upper part of the control box, an insulation layer for heat insulation is arranged inside the control box, and the insulation layer is located between the electromagnetic steam generator and the electromagnetic controller.
4. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The electromagnetic steam generator is provided with a liquid level detection electrode for detecting the height of the liquid level.
5. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The electromagnetic steam generator is provided with a heating body temperature sensor for real-time monitoring of the heating body temperature.
6. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The steam distribution pipe is provided with a plurality of real-time temperature sensors and real-time pressure sensors.
7. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The high-temperature water storage tank is provided with a real-time pressure sensor.
8. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The steam distribution pipe is connected to the second steam branch pipe through a steam compensation pipe, and a compensation proportional control valve is provided on the steam compensation pipe. A high-temperature tank temperature sensor for real-time monitoring is provided on the second steam branch pipe, and the high-temperature tank temperature sensor is close to the steam outlet of the high-temperature water storage tank.
9. The steam-electric hybrid thermal system for a steam production line according to claim 1, characterized in that: The high-temperature water storage tank is provided with a liquid level detection device for detecting the liquid level.
10. A control method for a steam-electric hybrid thermal system according to any one of claims 1 to 9, comprising a control mainboard, characterized in that: The control main board communicates data with the factory's transformer. A capacity monitor for real-time monitoring of the transformer's dynamic capacity is provided at the transformer end. The capacity monitor transmits the collected transformer dynamic capacity to the processor of the control main board in real time. The control main board communicates data with the proportional control steam inlet main valve, the electromagnetic steam generator, the real-time pressure sensor, and the real-time temperature sensor respectively. During off-peak power periods, the processor uses all the idle capacity of the transformer for heating the electromagnetic steam generator to generate saturated high-temperature steam based on the collected transformer dynamic capacity. Through data analysis fed back by the real-time pressure sensor and the real-time temperature sensor, the opening and closing degree of the proportional control steam inlet main valve is controlled on the premise of meeting the pressure and temperature required by the steam unit of the production line, thereby reducing the use of saturated high-temperature steam in the main steam pipe.