A virtual-real combined based steam turbine pump testing device

Abstract

The embodiment of the application provides a turbo pump test device based on virtual-real combination. The turbo pump test device based on virtual-real combination is realized by combining a physical turbo pump test bench with a pipeline system in a real-time simulation platform, sharing test data and real-time simulation data, and giving boundary conditions of the turbo pump when the system runs based on the virtual simulation pipeline system in the real-time simulation platform. Based on the boundary conditions calculated by the simulation system, the test bench is controlled to give the same boundary conditions to drive the turbo pump to run, and the actual data at the outlet of the turbo pump is fed back to the simulation system as input for further calculation of the simulation system, so that the characteristic analysis and verification of the turbo pump in the virtual system are continuously carried out.

Description

Technical Field

[0001] This application relates to the field of marine power technology, and in particular to a turbine pump testing device based on a combination of virtual and real technologies. Background Technology

[0002] Steam turbine pumps are widely used in the feedwater, lubricating oil, and cooling water systems of marine steam power systems, primarily for transporting feedwater, lubricating oil, and cooling water. Since steam turbine pumps use steam as the driving medium, their performance is directly affected by changes in the parameters of the working steam. During operation, fluctuations in the parameters of the driving steam will affect the operating characteristics of the turbine pump. These changes directly impact the transport characteristics of the systems it operates in, such as the feedwater, lubricating oil, and cooling water systems, thus affecting the operational economy and safety of the marine power system. Therefore, comprehensive testing of the operating characteristics of the steam turbine pump is necessary during the design process.

[0003] Currently, testing of steam turbine pumps primarily involves independent experiments focusing on their operational performance. It's difficult to comprehensively measure the actual operating characteristics of steam turbine pumps within the piping system, especially under varying operating conditions, the matching characteristics between the steam turbine and the piping, and the operating characteristics under system control strategies. Testing the actual operating characteristics of steam turbine pumps within the piping system requires full-scale test benches, resulting in very high testing costs and poor bench versatility. In marine propulsion systems, there are numerous types of steam turbine pumps and complex piping systems; therefore, there is an urgent need to design a steam turbine pump testing device based on a combination of virtual and real-world testing. Summary of the Invention

[0004] This invention provides a turbine pump testing device based on a virtual-physical integration approach. It combines a physical turbine pump test bench with a piping system in a real-time simulation platform, utilizing the sharing of experimental and real-time simulation data to achieve this virtual-physical integration. The virtual simulation piping system in the real-time simulation platform provides the boundary conditions for the turbine pump during system operation. Based on the boundary conditions calculated by the simulation system, the test bench applies the same boundary conditions to drive the turbine pump. The actual data from the turbine pump outlet is transmitted back to the simulation system as input for further calculations. This process is continuously repeated to conduct characteristic analysis and verification of the turbine pump within the virtual system.

[0005] This invention provides a turbine pump testing device based on a combination of virtual and real simulation. The testing device includes: a turbine pump test bench 5, a data processing unit 21, a real-time simulation platform 22, an adjustment device, and pipeline accessories.

[0006] The steam turbine pump to be tested is installed on the steam turbine pump test bench 5 and connected to the external steam and circulating water pipelines through pipelines.

[0007] A steam shut-off valve 1, a steam regulating device 2, a first pressure sensor 3, and a first temperature sensor 4 are installed on the steam pipeline at the inlet of the steam turbine pump.

[0008] A second pressure sensor 6, a second temperature sensor 7, a first flow meter 8, a steam outlet regulating device 9, a condenser 10, and a condensate tank 11 are arranged on the steam pipeline at the outlet of the steam turbine pump.

[0009] A fourth pressure sensor 17, a fourth temperature sensor 18, a circulating water regulating device 19, and a shut-off valve 20 are arranged on the working medium pipeline at the inlet of the steam turbine pump.

[0010] A circulating water tank 12, a turbine pump outlet regulating device 13, a second flow meter 14, a third temperature sensor 15, and a third pressure sensor 16 are arranged on the working medium pipeline at the outlet of the steam pump.

[0011] The data processing unit 21 collects sensor measurement data on the pipeline and transmits it to the real-time simulation platform 22;

[0012] The calculation results from the real-time simulation platform 22 can be transmitted to the steam regulating device (2), the steam outlet regulating device (9), the turbine pump outlet regulating device (13), and the circulating water regulating device (19) through the data processing unit 21.

[0013] In some embodiments, the testing apparatus can be used for rated operating condition performance testing, and the testing method includes:

[0014] The data processing unit 21 provides the boundary conditions for the rated operation of the turbine pump. The steam regulating device 2 and the circulating water regulating device 19 are adjusted according to the rated operation boundary conditions to make the turbine pump inlet conditions reach the design conditions. The steam outlet regulating device 9 and the turbine pump outlet regulating device 13 are adjusted to simulate the rated design conditions of the turbine pump outlet boundary conditions, and the steady-state operation data of the turbine pump is measured and recorded.

[0015] In some embodiments, the testing apparatus can be used for variable operating condition performance testing of steam turbine pumps, and the testing method includes:

[0016] During the variable operating condition performance test of the steam turbine pump, the upstream and downstream boundary conditions of the steam turbine pump under a given initial operating condition are first calculated using the real-time simulation platform 22. The steam regulating device 2, the circulating water regulating device 19, the steam outlet regulating device 9, and the steam turbine pump outlet regulating device 13 are then adjusted to bring the steam turbine pump into the initial operating condition regulation. The simulation platform then begins variable operating condition operation. Under the variable operating condition, the upstream and downstream regulation of the steam turbine pump calculated by the simulation program is used to control and regulate the steam regulating device 2, the circulating water regulating device 19, the steam outlet regulating device 9, and the steam turbine pump outlet regulating device 13, so that the inlet parameters and outlet resistance characteristics of the steam turbine pump are always the same as the simulation calculation. The operating characteristic data of the steam turbine pump are then recorded.

[0017] In some embodiments, the testing apparatus can be used for turbine pump control strategy verification tests, and the test methods include:

[0018] During the verification test of the turbine pump control strategy, the turbine pump test bench 5 is connected to the virtual pipeline system in the real-time simulation platform 22 through the data processing unit 21. The real-time simulation platform 22 calculates the turbine pump inlet conditions under the variable operating condition control strategy, and controls and adjusts the steam regulating device 2, the circulating water regulating device 19, the steam outlet regulating device 9, and the turbine pump outlet regulating device 13 to ensure that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench 5 through the data processing unit 21. The turbine pump operates under variable operating conditions according to the control strategy, and the actual operating data of the turbine pump is recorded.

[0019] In some embodiments, the testing apparatus can be used for turbine pump-pipeline matching characteristic testing, and the testing method includes:

[0020] During the turbine pump-pipeline matching characteristic test, the turbine pump test bench 5 is connected to the virtual pipeline system in the real-time simulation platform 22 through the data processing unit 21. The real-time simulation platform 22 calculates the turbine pump inlet conditions under the variable operating condition control strategy, and controls and adjusts the steam regulating device 2, the circulating water regulating device 19, the steam outlet regulating device 9, and the turbine pump outlet regulating device 13 to ensure that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench 5 through the data processing unit 21. The turbine pump operating parameters are used as the boundary input conditions of the virtual pipeline system in the real-time simulation platform 22 to calculate the system operating characteristics and record the turbine pump operating data; different pipeline system schemes are modified to test the turbine pump operating characteristics.

[0021] This invention provides a method for rated operating condition performance testing, based on the turbine pump testing device based on a combination of virtual and real conditions described in the above embodiments. The method includes:

[0022] The data processing unit 21 provides the boundary conditions for the rated operation of the turbine pump. The steam regulating device 2 and the circulating water regulating device 19 are adjusted according to the rated operation boundary conditions to make the turbine pump inlet conditions reach the design conditions. The steam outlet regulating device 9 and the turbine pump outlet regulating device 13 are adjusted to simulate the rated design conditions of the turbine pump outlet boundary conditions. The steady-state operation data of the turbine pump are measured and recorded.

[0023] This invention provides a method for testing the performance of a steam turbine pump under varying operating conditions, based on the virtual-real combined steam turbine pump testing device described in the above embodiments. The method includes:

[0024] During the variable operating condition performance test of the steam turbine pump, the upstream and downstream boundary conditions of the steam turbine pump under a given initial operating condition are first calculated using the real-time simulation platform 22. The steam regulating device 2, the circulating water regulating device 19, the regulating steam outlet regulating device 9, and the steam turbine pump outlet regulating device 13 are adjusted to bring the steam turbine pump into the initial operating condition regulation. The simulation platform then starts operating under variable operating conditions. Under variable operating conditions, the upstream and downstream regulation of the steam turbine pump calculated by the simulation program is used to control the regulating steam regulating device 2, the circulating water regulating device 19, the regulating steam outlet regulating device 9, and the steam turbine pump outlet regulating device 13, so that the inlet parameters and outlet resistance characteristics of the steam turbine pump are always the same as the simulation calculation. The operating characteristic data of the steam turbine pump are recorded.

[0025] This invention provides a method for verifying the control strategy of a steam turbine pump, based on the virtual-real combined steam turbine pump testing device described in the above embodiments. The method includes:

[0026] During the verification test of the turbine pump control strategy, the turbine pump test bench 5 and the virtual pipeline system in the real-time simulation platform 22 are connected through the data processing unit 21. The real-time simulation platform 22 calculates the turbine pump inlet conditions under the variable operating condition control strategy and controls the regulating steam regulating device 2, circulating water regulating device 19, regulating steam outlet regulating device 9 and turbine pump outlet regulating device 13 to ensure that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench 5 through the data processing unit 21. The turbine pump operates under variable operating conditions according to the control strategy, and the actual operating data of the turbine pump is recorded.

[0027] This invention provides a method for testing the matching characteristics of a steam turbine pump and its pipeline, based on the steam turbine pump testing device using a combination of virtual and real methods described in the above embodiments. The method includes:

[0028] During the turbine pump-pipeline matching characteristic test, the turbine pump test bench 5 and the virtual pipeline system in the real-time simulation platform 22 are connected through the data processing unit 21. Under the variable operating condition control strategy, the real-time simulation platform 22 calculates the turbine pump inlet conditions and controls the regulating steam regulating device 2, circulating water regulating device 19, regulating steam outlet regulating device 9, and turbine pump outlet regulating device 13 to ensure that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench 5 through the data processing unit 21. The turbine pump operating parameters are used as the boundary input conditions of the virtual pipeline system in the real-time simulation platform 22 to calculate the system operating characteristics and record the turbine pump operating data. Different pipeline system schemes are modified to test the turbine pump operating characteristics.

[0029] The beneficial effects of the above embodiments of the present invention include:

[0030] 1) It eliminates the need to construct a complex actual piping system to match the turbine pump, thus reducing the testing and experimental costs of the turbine pump;

[0031] 2) The test bench is versatile and can test different types and sizes of steam turbine pumps;

[0032] 3) It can test and verify the actual operating performance of the turbine pump under different operating conditions in the actual pipeline system;

[0033] 4) By calling different virtual pipeline systems, the matching characteristics of the turbine pump-pipeline system can be verified, which can help optimize the design of the pipeline system. Attached Figure Description

[0034] The accompanying drawings illustrate, by way of example and not limitation, the various embodiments discussed herein.

[0035] Figure 1 This is a schematic diagram of a turbine pump testing device based on a combination of virtual and real data, according to an embodiment of the present invention.

[0036] Symbol explanation:

[0037] 1. Steam shut-off valve; 2. Steam regulating device; 3. First pressure sensor; 4. First temperature sensor; 5. Steam turbine pump test bench; 6. Second pressure sensor; 7. Second temperature sensor; 8. First flow meter; 9. Steam outlet regulating device; 10. Condenser; 11. Condensate tank; 12. Circulating water tank; 13. Steam turbine pump outlet regulating device; 14. Second flow meter; 15. Third temperature sensor; 16. Third pressure sensor; 17. Fourth pressure sensor; 18. Fourth temperature sensor; 19. Circulating water regulating device; 20. Shut-off valve; 21. Data processing unit; 22. Real-time simulation platform. Detailed Implementation

[0038] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0039] In the embodiments described in this application, it should be noted that, unless otherwise stated and limited, the term "connection" should be interpreted broadly. For example, it can be an electrical connection, or a connection between two internal components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term according to the specific circumstances.

[0040] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein.

[0041] This invention relates to a turbine pump testing device based on a combination of virtual and real methods, applicable to the testing of turbine pumps in steam power system feedwater systems, circulating water systems, and lubricating oil systems.

[0042] This invention provides a turbine pump testing device based on a virtual-physical integration approach. It combines a physical turbine pump test bench with a piping system in a real-time simulation platform, utilizing the sharing of experimental and real-time simulation data to achieve this virtual-physical integration. The virtual simulation piping system in the real-time simulation platform provides the boundary conditions for the turbine pump during system operation. Based on the boundary conditions calculated by the simulation system, the test bench applies the same boundary conditions to drive the turbine pump. The actual data from the turbine pump outlet is transmitted back to the simulation system as input for further calculations. This process is continuously repeated to conduct characteristic analysis and verification of the turbine pump within the virtual system.

[0043] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Figure 1 This is a schematic diagram of a turbine pump testing device based on a combination of virtual and real data, according to an embodiment of the present invention.

[0044] like Figure 1As shown, the turbine pump testing device based on a virtual-real combination provided by the present invention consists of a turbine pump test bench 5, a data processing unit 21, a real-time simulation platform 22, an adjustment device, and pipeline accessories. Here, the adjustment device includes a steam adjustment device 2, a steam outlet adjustment device 9, a turbine pump outlet adjustment device 13, and a circulating water adjustment device 19. In a specific embodiment, the adjustment device may be a regulating valve. The turbine pump under test is installed on the turbine pump test bench 5 and connected to external steam and circulating water pipelines via pipelines. A steam shut-off valve 1, a steam adjustment device 2, a first pressure sensor 3, and a first temperature sensor 4 are arranged on the turbine pump inlet steam pipeline; a second pressure sensor 6, a second temperature sensor 7, a first flow meter 8, a steam outlet adjustment device 9, a condenser 10, and a condensate tank 11 are arranged on the turbine pump outlet steam pipeline. A shut-off valve 20, a circulating water regulating device 19, a fourth temperature sensor 18, and a fourth pressure sensor 17 are installed on the working medium inlet pipeline of the steam pump. A third pressure sensor 16, a third temperature sensor 15, a second flow meter 14, a steam pump outlet regulating device 13, and a circulating water tank 12 are installed on the working medium outlet pipeline of the steam pump. The data processing unit 21 collects the sensor measurement data on the pipeline and transmits it to the real-time simulation platform 22. The calculation results of the real-time simulation platform can be transmitted to the steam regulating device 2, the steam outlet regulating device 9, the steam pump outlet regulating device 13, and the circulating water regulating device 19 through the data processing unit 21.

[0045] Use Case 1: Rated Operating Condition Performance Test

[0046] The data processing unit 21 provides the boundary conditions for the rated operation of the turbine pump. The steam regulating device 2 and the circulating water regulating device 19 are adjusted according to the rated operation boundary conditions to make the turbine pump inlet conditions reach the design conditions. The steam outlet regulating device 9 and the turbine pump outlet regulating device 13 are adjusted to simulate the rated design conditions of the turbine pump outlet boundary conditions. The steady-state operation data of the turbine pump are measured and recorded.

[0047] Example 2: Variable Operating Condition Performance Test of Steam Turbine Pump

[0048] During the variable operating condition performance test of the steam turbine pump, the upstream and downstream boundary conditions of the steam turbine pump under a given initial operating condition are first calculated using a real-time simulation platform. The steam regulating device 2, circulating water regulating device 19, regulating steam outlet regulating device 9, and steam turbine pump outlet regulating device 13 are adjusted to bring the steam turbine pump into the initial operating condition regulation. The simulation platform then starts operating under variable operating conditions. Under variable operating conditions, the upstream and downstream regulation of the steam turbine pump calculated by the simulation program is used to control the regulating steam regulating device 2, circulating water regulating device 19, regulating steam outlet regulating device 9, and steam turbine pump outlet regulating device 13, so that the inlet parameters and outlet resistance characteristics of the steam turbine pump are always the same as the simulation calculation. The operating characteristic data of the steam turbine pump are recorded.

[0049] Test Case 3: Verification Experiment of Turbine Pump Control Strategy

[0050] During the verification test of the turbine pump control strategy, the turbine pump test bench 5 and the virtual pipeline system in the real-time simulation platform 22 are connected through the data processing unit 21. The real-time simulation platform 22 calculates the turbine pump inlet conditions under the variable operating condition control strategy and controls the regulating steam regulating device 2, circulating water regulating device 19, regulating steam outlet regulating device 9 and turbine pump outlet regulating device 13 to ensure that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench 5 through the data processing unit 21. The turbine pump operates under variable operating conditions according to the control strategy, and the actual operating data of the turbine pump is recorded.

[0051] Test Case 4: Steam Turbine Pump-Pipeline Matching Characteristics Test

[0052] During the turbine pump-pipeline matching characteristic test, the turbine pump test bench 5 and the virtual pipeline system in the real-time simulation platform 22 are connected through the data processing unit 21. Under the variable operating condition control strategy, the real-time simulation platform 22 calculates the turbine pump inlet conditions and controls the regulating steam regulating device 2, circulating water regulating device 19, regulating steam outlet regulating device 9, and turbine pump outlet regulating device 13 to ensure that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench 5 through the data processing unit 21. The turbine pump operating parameters are used as the boundary input conditions of the virtual pipeline system in the real-time simulation platform 22 to calculate the system operating characteristics and record the turbine pump operating data. Different pipeline system schemes are modified to test the turbine pump operating characteristics.

[0053] This invention provides a turbine pump testing device based on a combination of virtual and real methods.

[0054] The testing device in this embodiment of the invention consists of a turbine pump testing device, a data processing unit, a real-time simulation system, and corresponding pipelines and valves. Test data from the turbine pump testing device is collected by the real-time data processing unit and uploaded to the real-time simulation system as boundary conditions.

[0055] The real-time simulation system is connected to the regulating valve of the testing device via a data processing unit. The system calculates the operating boundary conditions of the turbine pump and adjusts the inlet and outlet regulating devices of the turbine pump through a control program to achieve the operating boundary conditions.

[0056] The outlet data of the turbine pump operation is returned to the simulation system through the data processing unit, driving the simulation system to perform real-time calculations.

[0057] The virtual pipeline system in the real-time simulation platform of the test device in this embodiment of the invention can be modified and rebuilt, supports different virtual pipeline system schemes, and verifies the matching characteristics of the turbine pump-pipeline system.

[0058] The turbine pump test bench in the test device of this invention can be equipped with different types and sizes of turbine pumps, which can be connected to the test device through inlet and outlet interfaces.

[0059] The technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0060] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A turbine pump testing device based on a combination of virtual and real methods, characterized in that, The testing device includes: a steam turbine pump test bench (5), a data processing unit (21), a real-time simulation platform (22), an adjustment device, and pipeline accessories; The steam turbine pump to be tested is installed on the steam turbine pump test bench (5) and connected to the external steam and circulating water pipelines through pipelines; A steam shut-off valve (1), a steam regulating device (2), a first pressure sensor (3), and a first temperature sensor (4) are arranged on the steam pipeline at the inlet of the steam turbine pump. A second pressure sensor (6), a second temperature sensor (7), a first flow meter (8), a steam outlet regulating device (9), a condenser (10), and a condensate tank (11) are arranged on the steam pipeline at the outlet of the steam turbine pump. A fourth pressure sensor (17), a fourth temperature sensor (18), a circulating water regulating device (19), and a shut-off valve (20) are arranged on the working medium pipeline at the inlet of the steam turbine pump. A circulating water tank (12), a turbine pump outlet regulating device (13), a second flow meter (14), a third temperature sensor (15) and a third pressure sensor (16) are arranged on the working medium pipeline at the outlet of the steam pump. The data processing unit (21) collects sensor measurement data on the pipeline and transmits it to the real-time simulation platform (22); The calculation results of the real-time simulation platform (22) can be transmitted to the steam regulating device (2), the steam outlet regulating device (9), the turbine pump outlet regulating device (13) and the circulating water regulating device (19) through the data processing unit (21).

2. The turbine pump testing device based on a combination of virtual and real methods according to claim 1, characterized in that, The testing device can be used for rated operating condition performance testing, and the testing methods include: The data processing unit (21) provides the boundary conditions for the rated operation of the turbine pump. The steam regulating device (2) and the circulating water regulating device (19) are adjusted according to the rated operation boundary conditions to make the turbine pump inlet conditions reach the design conditions. The steam outlet regulating device (9) and the turbine pump outlet regulating device (13) are adjusted to simulate the rated design conditions of the turbine pump outlet boundary conditions, and the steady-state operation data of the turbine pump is measured and recorded.

3. The turbine pump testing device based on a combination of virtual and real methods according to claim 1, characterized in that, The testing device can be used for variable operating condition performance testing of steam turbine pumps, and the testing methods include: When conducting the variable operating condition performance test of the steam turbine pump, the upstream and downstream boundary conditions of the steam turbine pump under a given initial operating condition are first calculated through the real-time simulation platform (22). The steam regulating device (2), the circulating water regulating device (19), the steam outlet regulating device (9), and the steam turbine pump outlet regulating device (13) are adjusted to make the steam turbine pump be in the initial operating condition regulation. The simulation platform starts to run under variable operating conditions. Under the variable operating conditions, the upstream and downstream regulation of the steam turbine pump calculated by the simulation program is used to control and regulate the steam regulating device (2), the circulating water regulating device (19), the steam outlet regulating device (9), and the steam turbine pump outlet regulating device (13) so that the inlet parameters and outlet resistance characteristics of the steam turbine pump are always the same as the simulation calculation. The operating characteristic data of the steam turbine pump are recorded.

4. The turbine pump testing device based on a combination of virtual and real methods according to claim 1, characterized in that, The testing device can be used for turbine pump control strategy verification tests, and the test methods include: During the verification test of the turbine pump control strategy, the turbine pump test bench (5) and the virtual pipeline system in the real-time simulation platform (22) are connected through the data processing unit (21). The real-time simulation platform (22) calculates the turbine pump inlet conditions under the variable operating condition control strategy, controls and adjusts the steam regulating device (2), the circulating water regulating device (19), the steam outlet regulating device (9), and the turbine pump outlet regulating device (13) so that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench (5) through the data processing unit (21). The turbine pump operates under variable operating conditions according to the control strategy, and the actual operating data of the turbine pump is recorded.

5. The turbine pump testing device based on a combination of virtual and real methods according to claim 1, characterized in that, The testing device can be used for turbine pump-pipeline matching characteristic testing, and the testing methods include: During the turbine pump-pipeline matching characteristic test, the turbine pump test bench (5) and the virtual pipeline system in the real-time simulation platform (22) are connected through the data processing unit (21). The real-time simulation platform (22) calculates the turbine pump inlet conditions under the variable operating condition control strategy, controls and adjusts the steam regulating device (2), the circulating water regulating device (19), the steam outlet regulating device (9), and the turbine pump outlet regulating device (13) so that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench (5) through the data processing unit (21). The turbine pump operating parameters are used as the boundary input conditions of the virtual pipeline system in the real-time simulation platform (22) to calculate the system operating characteristics and record the turbine pump operating data. Different pipeline system schemes are modified to test the turbine pump operating characteristics.

6. A method for testing rated operating condition performance, characterized in that, Based on the turbine pump testing device based on a combination of virtual and real data according to claim 1, the method includes: The data processing unit (21) provides the boundary conditions for the rated operation of the turbine pump. The steam regulating device (2) and the circulating water regulating device (19) are adjusted according to the rated operation boundary conditions to make the turbine pump inlet conditions reach the design conditions. The steam outlet regulating device (9) and the turbine pump outlet regulating device (13) are adjusted to simulate the rated design conditions of the turbine pump outlet boundary conditions. The steady-state operation data of the turbine pump are measured and recorded.

7. A method for testing the performance of a steam turbine pump under varying operating conditions, characterized in that, Based on the turbine pump testing device based on a combination of virtual and real data according to claim 1, the method includes: When conducting the variable operating condition performance test of the steam turbine pump, the upstream and downstream boundary conditions of the steam turbine pump under the given initial operating conditions are first calculated through the real-time simulation platform (22). The steam regulating device (2), the circulating water regulating device (19), the regulating steam outlet regulating device (9) and the steam turbine pump outlet regulating device (13) are adjusted to make the steam turbine pump be in the initial operating condition regulation. The simulation platform starts to run under variable operating conditions. The upstream and downstream regulation of the steam turbine pump calculated by the simulation program under the variable operating conditions controls the regulating steam regulating device (2), the circulating water regulating device (19), the regulating steam outlet regulating device (9) and the steam turbine pump outlet regulating device (13) to make the inlet parameters and outlet resistance characteristics of the steam turbine pump always the same as the simulation calculation. The operating characteristic data of the steam turbine pump are recorded.

8. A method for verifying a turbine pump control strategy, characterized in that, Based on the turbine pump testing device based on a combination of virtual and real data according to claim 1, the method includes: During the verification test of the turbine pump control strategy, the turbine pump test bench (5) and the virtual pipeline system in the real-time simulation platform (22) are connected through the data processing unit (21). The real-time simulation platform (22) calculates the turbine pump inlet conditions under the variable operating condition control strategy, controls and regulates the steam regulating device (2), the circulating water regulating device (19), the regulating steam outlet regulating device (9), and the turbine pump outlet regulating device (13), so that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench (5) through the data processing unit (21). The turbine pump operates under variable operating conditions according to the control strategy, and the actual operating data of the turbine pump is recorded.

9. A method for testing the matching characteristics of a steam turbine pump-pipeline, characterized in that, Based on the turbine pump testing device based on a combination of virtual and real data according to claim 1, the method includes: During the turbine pump-pipeline matching characteristic test, the turbine pump test bench (5) and the virtual pipeline system in the real-time simulation platform (22) are connected through the data processing unit (21). The real-time simulation platform (22) calculates the turbine pump inlet conditions under the variable operating condition control strategy, controls and regulates the steam regulating device (2), the circulating water regulating device (19), the regulating steam outlet regulating device (9), and the turbine pump outlet regulating device (13), so that the turbine pump inlet parameters and outlet resistance characteristics are always the same as the simulation calculation. At the same time, the turbine pump control command is transmitted to the turbine pump test bench (5) through the data processing unit (21). The turbine pump operating parameters are used as the boundary input conditions of the virtual pipeline system in the real-time simulation platform (22), the system operating characteristics are calculated, and the turbine pump operating data is recorded. Different pipeline system schemes are modified to test the turbine pump operating characteristics.

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