Rapid starting method and device for supercritical carbon dioxide cycle generator set and medium

Abstract

The invention discloses a quick starting method and device for a supercritical carbon dioxide cycle generator set and a medium. The quick starting method comprises the steps that (1) a compressor is started, and carbon dioxide working medium cycle is established; 2) igniting the boiler to heat the carbon dioxide working medium; 3) increasing the rotating speed of a compressor, increasing the fuel quantity of the boiler, and stably increasing the pressure, temperature and flow of the carbon dioxide working medium; (4) when the temperature and pressure of the working medium to be reheated meet the preset conditions, the high-pressure turbine and the low-pressure turbine are impacted and accelerated; (5) a high-pressure turbine and a low-pressure turbine are warmed at a constant speed, and a generator is connected to a grid for power generation; according to the method, the device and the medium, the high efficiency and the flexibility of the supercritical carbon dioxide circulating coal-fired power generation unit can be considered, and the starting speed of the supercritical carbon dioxide reheating circulating power generation unit is increased.

Description

Technical Field

[0001] This invention belongs to the field of power cycle power generation technology, and relates to a method, equipment and medium for rapid start-up of a supercritical carbon dioxide cycle generator set. Background Technology

[0002] Supercritical carbon dioxide cycle power generation technology has become an important development direction for low-carbon flexible coal-fired power generation technology due to its advantages such as high cycle thermal efficiency and flexible operation. Among all thermodynamic system configurations of supercritical carbon dioxide cycle, the reheat cycle can significantly improve the unit's power generation efficiency and is a preferred configuration for supercritical carbon dioxide cycle generator units.

[0003] Supercritical carbon dioxide reheat cycle power generation units have two turbine generators, one high-voltage and one low-voltage. Compared to a single turbine generator without reheat cycle, the operation and control of this unit is more complex and challenging. Thermal power units operate under conditions of deep peak shaving, rapid load changes, and even frequent start-stop cycles, which exacerbates the difficulty of flexibly operating supercritical carbon dioxide coal-fired power generation units.

[0004] Therefore, balancing the high efficiency and flexibility of supercritical CO2 reheat cycle coal-fired power generation units will be key to the large-scale application of supercritical CO2 reheat cycle coal-fired power generation technology. Accelerating the start-up speed of supercritical CO2 reheat cycle power generation units is an effective technical measure to improve both efficiency and flexibility. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method, equipment and medium for rapid start-up of supercritical carbon dioxide reheat cycle generator sets. This method, equipment and medium can take into account the high efficiency and flexibility of supercritical carbon dioxide reheat cycle coal-fired generator sets and accelerate the start-up speed of supercritical carbon dioxide reheat cycle generator sets.

[0006] To achieve the above objectives, this invention discloses a rapid start-up method for a supercritical carbon dioxide cycle generator set, comprising: 1) Start the compressor to establish a carbon dioxide working fluid cycle; 2) The boiler is ignited to heat the carbon dioxide working medium; 3) Increase the compressor speed and the amount of boiler fuel, so that the pressure, temperature and flow rate of carbon dioxide working fluid rise steadily; 4) Once the reheat working fluid temperature and pressure meet the preset conditions, the high-pressure turbine and low-pressure turbine will be started and accelerated. 5) High-voltage turbine and low-voltage turbine constant-speed warm-up, generator connected to grid for power generation; 6) High-pressure turbine intake under load; 7) Increase the load of high-pressure turbines and low-pressure turbines to their rated load.

[0007] Furthermore, the specific operation of step 1) is as follows: Close the high-pressure main gas valve, high-pressure regulating valve, low-pressure main gas valve, and low-pressure regulating valve; open the high-pressure bypass regulating valve and low-pressure bypass regulating valve; fill the process circulation pipeline with carbon dioxide working fluid; start the compressor; and establish carbon dioxide working fluid circulation.

[0008] Furthermore, the specific operation of step 2) is as follows: Once the working fluid flow rate in the boiler's air-cooled wall reaches the ignition condition, the furnace is purged to establish balanced ventilation inside the furnace, and the boiler burner is ignited; the boiler air distribution is adjusted to maintain stable negative pressure in the furnace; the fuel quantity is increased to maintain stable ignition and heat the carbon dioxide working fluid.

[0009] Furthermore, the specific operation of step 3) is as follows: Increase the compressor speed to steadily increase the pressure and flow rate of the carbon dioxide working fluid; increase the boiler fuel to gradually increase the boiler's heat load, and the temperature of the carbon dioxide working fluid will steadily rise according to the temperature rise curve.

[0010] Furthermore, the specific operation of step 4) is as follows: When the reheat working fluid temperature and pressure reach the required start-up parameters, the low-pressure main gas valve is opened to start the start-up procedure. The low-pressure regulating valve is opened, and the high-pressure turbine and low-pressure turbine start-up speed is increased. The opening of the low-pressure bypass regulating valve is reduced to increase the compressor speed and the boiler fuel quantity. After each increase in turbine speed, the next speed increase is started only when the temperature difference between the inner and outer cylinders is less than the set value. The speed increase rate is increased when the critical point is reached. The start-up speed is increased in stages according to the speed increase curve, and the turbine vibration and expansion difference are monitored to keep the low-pressure regulating valve in the optimal flow regulation range.

[0011] Furthermore, the specific operation of step 5) is as follows: The high-pressure turbine and low-pressure turbine, which are arranged on the same axis, reach a speed of 3000 r / min. After the preset warm-up time, the generator is connected to the grid to generate electricity.

[0012] Furthermore, the specific operation of step 6) is as follows: Open the high-pressure main gas valve and the high-pressure regulating valve, and the high-pressure turbine starts to intake air. The high-pressure turbine and the low-pressure turbine work together to carry the load. By closing the high-pressure bypass regulating valve to increase the load, the high-pressure regulating valve is kept in the optimal flow regulation range, and the opening of the low-pressure regulating valve is gradually increased to 100%.

[0013] Furthermore, the specific operation of step 7) is as follows: Adjust the compressor speed, regulate the boiler fuel quantity and air volume, regulate the circulating water flow rate, and adjust the working fluid charge to gradually increase the load of the high-pressure turbine and low-pressure turbine to the rated load.

[0014] The present invention discloses a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the rapid start-up method for the supercritical carbon dioxide cycle generator set.

[0015] The present invention discloses a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the rapid start-up method for the supercritical carbon dioxide cycle generator set.

[0016] The present invention has the following beneficial effects: The supercritical carbon dioxide cycle generator set rapid start-up method, equipment, and medium described in this invention employs low-pressure turbine inlet acceleration during operation, which significantly shortens the start-up time of the supercritical carbon dioxide cycle generator set, reduces thermal stress during turbine acceleration, and improves the efficiency and safety of the unit during start-up and operation. This method is simple, reliable, and has low start-up costs, making it suitable for widespread application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of the method of the present invention; Figure 2 A schematic diagram of a supercritical carbon dioxide recompression cycle power generation system with high and low pressure turbines arranged coaxially. Figure 3 This is a schematic diagram of a coaxial arrangement of high and low pressure turbines. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this invention generally indicates that the preceding and following objects have an "or" relationship.

[0023] It should be understood that although terms such as first, second, third, etc., may be used in the embodiments of the present invention to describe the preset range, these preset ranges should not be limited to these terms. These terms are only used to distinguish the preset ranges from one another. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0024] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0027] Example 1 refer to Figure 1 The rapid start-up method for a supercritical carbon dioxide cycle generator set according to the present invention includes the following steps: 1) Start the compressor to establish a carbon dioxide working fluid cycle; Close the high-pressure main gas valve, high-pressure regulating valve, low-pressure main gas valve, and low-pressure regulating valve; open the high-pressure bypass regulating valve and low-pressure bypass regulating valve; fill the process circulation pipeline with carbon dioxide working fluid; start the compressor; and establish carbon dioxide working fluid circulation.

[0028] 2) The boiler is ignited to heat the carbon dioxide working medium; Once the working fluid flow rate in the boiler's air-cooled wall reaches the ignition condition, the furnace is purged to establish balanced ventilation inside the furnace, and the boiler burner is ignited; the boiler air distribution is adjusted to maintain stable negative pressure in the furnace; the fuel quantity is increased to maintain stable ignition and heat the carbon dioxide working fluid.

[0029] 3) Increase the compressor speed and the amount of boiler fuel, so that the pressure, temperature and flow rate of carbon dioxide working fluid rise steadily; Increase the compressor speed to steadily increase the pressure and flow rate of the carbon dioxide working fluid; increase the boiler fuel to gradually increase the boiler's heat load, and the temperature of the carbon dioxide working fluid will steadily rise according to the temperature rise curve.

[0030] 4) Once the reheat working fluid temperature and pressure meet the preset conditions, the high-pressure turbine and low-pressure turbine will be started and accelerated. When the reheat working fluid temperature and pressure reach the required start-up parameters, the low-pressure main gas valve is opened to start the start-up procedure. The low-pressure regulating valve is opened, and the high-pressure turbine and low-pressure turbine start-up speed is increased. The opening of the low-pressure bypass regulating valve is reduced to increase the compressor speed and the boiler fuel quantity. After each increase in turbine speed, the next speed increase is started only when the temperature difference between the inner and outer cylinders is less than the set value. The speed increase rate is increased when the critical point is reached. The start-up speed is increased in stages according to the speed increase curve, and the turbine vibration and expansion difference are monitored to keep the low-pressure regulating valve in the optimal flow regulation range.

[0031] 5) High-voltage turbine and low-voltage turbine constant-speed warm-up, generator connected to grid for power generation; The high-pressure turbine and low-pressure turbine, which are arranged on the same axis, reach a speed of 3000 r / min. After the preset warm-up time, the generator is connected to the grid to generate electricity.

[0032] 6) High-pressure turbine intake under load; Open the high-pressure main gas valve and the high-pressure regulating valve, and the high-pressure turbine starts to intake air. The high-pressure turbine and the low-pressure turbine work together to carry the load. By closing the high-pressure bypass regulating valve to increase the load, the high-pressure regulating valve is kept in the optimal flow regulation range, and the opening of the low-pressure regulating valve is gradually increased to 100%.

[0033] 7) Increase the load of high-pressure turbines and low-pressure turbines to their rated load; Adjust the compressor speed, regulate the boiler fuel quantity and air volume, regulate the circulating water flow rate, and adjust the working fluid charge to gradually increase the load of the high-pressure turbine and low-pressure turbine to the rated load.

[0034] Example 2 refer to Figure 2 The working fluid flow of a supercritical carbon dioxide recompression cycle power generation system with high and low pressure turbines arranged coaxially is as follows: Supercritical carbon dioxide, after being pressurized by the main compressor, flows through the cold-side channel of the low-temperature regenerator to absorb heat and increase its temperature. After exiting the cold-side channel of the low-temperature regenerator, it merges with the supercritical carbon dioxide from the recompression compressor and then flows into the cold-side channel of the high-temperature regenerator to continue absorbing heat and increasing its temperature. It then enters the primary gas heating surface of the boiler to absorb the heat released by fuel combustion. The heated supercritical carbon dioxide passes through the high-pressure main gas valve and the high-pressure regulating valve into the high-pressure turbine to expand and generate electricity. After exiting the turbine, the supercritical carbon dioxide enters the boiler's secondary gas heating surface to absorb heat again from fuel combustion. After absorbing heat and heating up, it passes through the low-pressure main gas valve and low-pressure regulating valve into the low-pressure turbine to continue expanding and doing work. The supercritical carbon dioxide exiting the low-pressure turbine flows sequentially through the hot-side channels of the high-temperature and low-temperature regenerators to release heat and cool down. The cooled supercritical carbon dioxide is divided into two parts: one part flows through diversion valve one into the precooler for further heat release and cooling, eventually returning to the main compressor to complete the cycle; the other part flows directly back to the re-compressor through diversion valve two to complete the cycle. Figure 3 This is a schematic diagram of a coaxial arrangement of high and low pressure turbines. A high-pressure turbine is arranged on one side of the shaft, a synchronous generator is arranged on the other side of the shaft, and a low-pressure turbine is arranged in the middle of the shaft.

[0035] by Figure 2 and Figure 3 For example, combined with Figure 1 The rapid start-up method for a supercritical carbon dioxide cycle generator set according to the present invention includes the following steps: 1) Close the high-pressure main gas valve, high-pressure regulating valve, low-pressure main gas valve, and low-pressure regulating valve; open the high-pressure bypass regulating valve and low-pressure bypass regulating valve; close the main compressor outlet valve and open the anti-surge valve; close the second diverter valve and open the first diverter valve; charge carbon dioxide working fluid into the process circulation pipeline and start the main compressor; continuously charge carbon dioxide working fluid into the process pipeline, slowly open the main compressor outlet valve, and establish carbon dioxide working fluid circulation; after the carbon dioxide working fluid flow rate reaches a certain value, open the second diverter valve and start the compressor.

[0036] 2) Once the working fluid flow rate in the boiler's air-cooled wall reaches the ignition condition, purge the furnace, balance the ventilation, establish the aerodynamic field inside the furnace, and ignite the boiler burner; adjust the boiler air distribution to maintain stable negative pressure in the furnace; increase the fuel quantity to maintain stable ignition and heat the carbon dioxide working fluid; increase the compressor speed to steadily increase the pressure and flow rate of the carbon dioxide working fluid; increase boiler fuel to gradually increase the boiler heat load, and the temperature of the carbon dioxide working fluid steadily increases according to the temperature rise curve; and start the circulating cooling water system in a timely manner to maintain the working fluid temperature at the main compressor inlet above the critical zone.

[0037] 3) When the working fluid temperature and pressure at the boiler secondary gas heating surface outlet reach the required start-up parameters, open the low-pressure main gas valve, start the start-up procedure, open the low-pressure regulating valve, and increase the start-up speed of the high- and low-pressure turbines; gradually close the low-pressure bypass regulating valve, increase the compressor speed, and increase the boiler fuel quantity. After each increase in turbine speed, wait until the temperature difference between the inner and outer cylinders is less than the set value before starting the next speed increase. When passing the critical point, appropriately increase the speed increase rate; start up and increase the speed in stages according to the speed increase curve, closely monitor turbine vibration and expansion difference, and maintain the low-pressure regulating valve in the optimal flow regulation range; monitor the vibration and expansion difference of the high-pressure turbine under coaxial arrangement.

[0038] 4) When the coaxial high and low pressure turbines reach a speed of 3000 r / min and have been warmed up for a certain period of time, the generator is excited and connected to the grid for power generation. The high pressure main gas valve is opened and the high pressure regulating valve is opened. The high pressure turbine starts to intake air and the high pressure turbine and low pressure turbine work together to carry the load. By closing the high pressure bypass regulating valve to cooperate with the load increase, the high pressure regulating valve is kept in the optimal flow regulation range, and the opening of the low pressure regulating valve is gradually increased to 100%. The compressor speed is adjusted, the boiler fuel quantity and air volume are adjusted, the circulating water flow rate is adjusted, and the working fluid charge is adjusted. The high and low pressure turbines are gradually increased to the rated load.

[0039] Example 3 A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of a rapid start-up method for a supercritical carbon dioxide cycle generator set. The memory may include main memory, such as high-speed random access memory (RAM), and may also include non-volatile memory, such as at least one disk storage device. The processor, network interface, and memory are interconnected via an internal bus, which may be an industry-standard architecture bus, a peripheral component interconnection standard bus, an extended industry-standard architecture bus, etc. The bus may be categorized as an address bus, a data bus, a control bus, etc. The memory stores the program; specifically, the program may include program code, which includes computer operation instructions. The memory may include main memory and non-volatile memory, and provides instructions and data to the processor.

[0040] Example 4 A computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the rapid start-up method for a supercritical carbon dioxide cycle generator set. Specifically, the computer-readable storage medium includes, but is not limited to, volatile memory and / or non-volatile memory. The volatile memory may include random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include read-only memory (ROM), hard disk, flash memory, optical disk, magnetic disk, etc.

[0041] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0042] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1A device that provides the functions specified in one or more boxes.

[0043] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0044] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0045] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0046] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0047] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for rapid start-up of a supercritical carbon dioxide cycle generator set, characterized in that, include: 1) Start the compressor to establish a carbon dioxide working fluid cycle; 2) The boiler is ignited to heat the carbon dioxide working medium; 3) Increase the compressor speed and the amount of boiler fuel, so that the pressure, temperature and flow rate of carbon dioxide working fluid rise steadily; 4) Once the reheat working fluid temperature and pressure meet the preset conditions, the high-pressure turbine and low-pressure turbine will be started and accelerated. 5) High-voltage turbine and low-voltage turbine constant-speed warm-up, generator connected to grid for power generation; 6) High-pressure turbine intake under load; 7) Increase the load of high-pressure turbines and low-pressure turbines to their rated load.

2. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 1) is as follows: Close the high-pressure main gas valve, high-pressure regulating valve, low-pressure main gas valve, and low-pressure regulating valve; open the high-pressure bypass regulating valve and low-pressure bypass regulating valve; fill the process circulation pipeline with carbon dioxide working fluid; start the compressor; and establish carbon dioxide working fluid circulation.

3. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 2) is as follows: Once the working fluid flow rate in the boiler's air-cooled wall reaches the ignition condition, the furnace is purged to establish balanced ventilation inside the furnace, and the boiler burner is ignited; the boiler air distribution is adjusted to maintain stable negative pressure in the furnace; the fuel quantity is increased to maintain stable ignition and heat the carbon dioxide working fluid.

4. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 3) is as follows: Increase the compressor speed to steadily increase the pressure and flow rate of the carbon dioxide working fluid; increase the boiler fuel to gradually increase the boiler's heat load, and the temperature of the carbon dioxide working fluid will steadily rise according to the temperature rise curve.

5. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 4) is as follows: When the reheat working fluid temperature and pressure reach the required start-up parameters, the low-pressure main gas valve is opened, the start-up program is started, the low-pressure regulating valve is opened, and the high-pressure turbine and low-pressure turbine start-up speed is increased. Reduce the opening of the low-pressure bypass regulating valve, increase the compressor speed and the amount of fuel in the boiler. After each increase in turbine speed, wait until the temperature difference between the inner and outer cylinders is less than the set value before starting the next speed increase. Increase the speed increase rate when the critical point is reached. Increase the speed in stages according to the speed increase curve, monitor the turbine vibration and expansion difference, and keep the low-pressure regulating valve in the optimal flow regulation range.

6. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 5) is as follows: The high-pressure turbine and low-pressure turbine, which are arranged on the same axis, reach a speed of 3000 r / min. After the preset warm-up time, the generator is connected to the grid to generate electricity.

7. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 6) is as follows: Open the high-pressure main gas valve and the high-pressure regulating valve, and the high-pressure turbine starts to intake air. The high-pressure turbine and the low-pressure turbine work together to carry the load. By closing the high-pressure bypass regulating valve to increase the load, the high-pressure regulating valve is kept in the optimal flow regulation range, and the opening of the low-pressure regulating valve is gradually increased to 100%.

8. The rapid start-up method for a supercritical carbon dioxide cycle generator set according to claim 1, characterized in that, The specific operation of step 7) is as follows: Adjust the compressor speed, regulate the boiler fuel quantity and air volume, regulate the circulating water flow rate, and adjust the working fluid charge to gradually increase the load of the high-pressure turbine and low-pressure turbine to the rated load.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the rapid start-up method for a supercritical carbon dioxide cycle generator set as described in any one of claims 1-8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the rapid start-up method for a supercritical carbon dioxide cycle generator set as described in any one of claims 1-8.

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