Hydrogen engine rotating turbine blade cooling effect test equipment and method

Abstract

The present invention relates to a device and method for testing the cooling effect of rotating turbine blades in a hydrogen combustion engine. The test device comprises an air supply device, a combustion chamber, a turbine, a steam turbine, and a temperature measuring device. The turbine comprises a turbine body, stationary blades, moving blades, and a rotor. The rotor is disposed through the turbine body, the stationary blades are disposed on the turbine body, and the moving blades are disposed on the rotor. The rotor can drive the moving blades to rotate. The air supply device is used to supply hydrogen and oxygen to the combustion chamber. The combustion chamber is connected to the turbine body, and the steam turbine is connected to the combustion chamber and the turbine body. Part of the steam extraction from the steam turbine enters the combustion chamber, and another part of the steam extraction from the steam turbine enters the turbine body. The temperature measuring device is connected to the turbine and is used to measure the temperature of the stationary blades, moving blades, and turbine interstages. The test device of the present invention can test the cooling effect of turbine blades in a rotating hydrogen combustion engine, analyze the influence of steam on the cooling effect of the rotating turbine blades of the hydrogen combustion engine, and provide support for the design of the hydrogen combustion engine.

Description

Technical Field

[0001] The present invention relates to the technical field of gas turbines, and in particular to a device and method for testing the cooling effect of rotating turbine blades of a hydrogen combustion engine. Background Art

[0002] As the requirements for carbon emissions at home and abroad become increasingly stringent, the carbon emission pressure of traditional gas turbines that use natural gas as fuel is increasing.

[0003] Hydrogen combustion engines are gas turbines that use hydrogen instead of natural gas as fuel. While natural gas combustion turbines primarily emit carbon dioxide and nitrogen oxides, hydrogen combustion engines primarily emit water vapor, offering zero carbon emissions and environmental benefits. Furthermore, hydrogen combustion engines can be combined with renewable energy to address the challenges of large-scale, long-term storage and flexible grid integration of renewable energy.

[0004] A major difficulty in the development of hydrogen combustion engines lies in the design and experimental verification of the cooling effect of the rotating turbine blades. Since the initial temperature of the gas entering the combustion chamber of the combustion engine is relatively high, a suitable cooling solution is needed to cool the turbine blades so that they are not burned by the high temperature. The design solution and cooling effect test of traditional natural gas gas turbines have certain limitations in the applicability of hydrogen combustion engines, mainly manifested in the following aspects: First, the exhaust gas from the combustion chamber of traditional natural gas gas turbines is mainly carbon dioxide and nitrogen oxides, while the exhaust gas from the combustion chamber of hydrogen combustion engines is mainly water vapor. The exhaust medium is different, and the work done and cooling characteristics in the rotating turbine are also different. Second, in order to consider the matching of the cooling medium and the exhaust medium, unlike traditional natural gas gas turbines that use air to cool the turbine vanes, moving blades and rotors, the cooling of hydrogen combustion engines can be designed to use steam cooling.

[0005] Currently, there are no publicly available test benches specifically designed to evaluate the cooling effect of rotating turbine blades in hydrogen combustion engines. There are also no test protocols for using steam as a working fluid for rotating turbine cooling, making it impossible to accurately evaluate the cooling effect of steam on rotating turbine blades in hydrogen combustion engines. Furthermore, conventional steam sources require specialized steam generation equipment, which is extremely expensive. Furthermore, the steam produced after the test turbine has completed its work is difficult to reuse, resulting in energy waste.

[0006] However, in the relevant technology, there is no test bench for testing and evaluating the cooling effect of turbine blades in a rotating state of a hydrogen combustion engine, nor is there a test plan for using water vapor as a working fluid to cool the turbine in a rotating state. Therefore, correctly evaluating the cooling effect of steam on the rotating turbine blades of a hydrogen combustion engine is of great significance to the design of hydrogen combustion engines. Summary of the Invention

[0007] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0008] To this end, an embodiment of the present invention proposes a cooling effect test device for rotating turbine blades of a hydrogen combustion engine. The experimental equipment can perform cooling effect tests on turbine blades in a rotating state of a hydrogen combustion engine, analyze the influence of steam on the cooling effect of rotating turbine blades of a hydrogen combustion engine, provide support for the design of hydrogen combustion engines, and has good practicality.

[0009] The embodiment of the present invention also provides a method for testing the cooling effect of rotating turbine blades of a hydrogen combustion engine.

[0010] According to an embodiment of the present invention, a hydrogen combustion engine rotating turbine blade cooling effect test device includes: an air supply device, a combustion chamber, a turbine, a steam turbine and a temperature measuring device, the turbine includes a turbine body, stationary blades, moving blades and a rotor, the rotor is inserted into the turbine body, the stationary blades are arranged on the turbine body, the moving blades are arranged on the rotor, the rotor rotates relative to the turbine body to drive the moving blades to rotate, the air supply device is connected to the combustion chamber for supplying hydrogen and oxygen into the combustion chamber, the combustion chamber is connected to the turbine body, the steam turbine is connected to the combustion chamber and the turbine body, part of the steam extraction of the steam turbine enters the combustion chamber, and another part of the steam extraction of the steam turbine enters the turbine body, and the temperature measuring device is connected to the turbine for measuring the temperature of at least one of the stationary blades, the moving blades and the turbine interstage.

[0011] According to an embodiment of the present invention, a test device for the cooling effect of rotating turbine blades of a hydrogen-fired engine can supply hydrogen and oxygen to the combustion chamber through an air supply device. The hydrogen and oxygen burn in the combustion chamber to form hot steam and pass into the turbine body. Part of the steam extracted from the turbine enters the combustion chamber, and another part of the steam extracted from the turbine enters the turbine body, thereby cooling the combustion chamber and the turbine. The temperature measuring device can measure the temperature of the stationary blades, moving blades and / or turbine stages, thereby obtaining key parameters characterizing the cooling effect of the cooling blades, and then analyzing the influence of steam on the cooling effect of the turbine blades when the turbine is rotating, providing support for the design of hydrogen-fired engines, and having good practicality.

[0012] In some embodiments, the gas supply device includes a water electrolysis device and an oxygen supplement device. The water electrolysis device is used to decompose water into hydrogen and oxygen and introduce the hydrogen and oxygen into the combustion chamber. The oxygen supplement device is used to supplement oxygen into the combustion chamber.

[0013] In some embodiments, the gas supply device further includes a hydrogen supply pipeline, a first oxygen supply pipeline and a second oxygen supply pipeline. The hydrogen supply pipeline is connected to the water electrolysis device and the combustion chamber for supplying hydrogen into the combustion chamber. The first oxygen supply pipeline is connected to the water electrolysis device and the combustion chamber for supplying oxygen into the combustion chamber. The second oxygen supply pipeline is connected to the oxygen replenishing device and the combustion chamber for replenishing oxygen into the combustion chamber. The hydrogen supply pipeline is provided with at least one of a first hydrogen flowmeter, a first hydrogen thermometer and a first hydrogen pressure gauge. The first oxygen supply pipeline is provided with at least one of a first oxygen flowmeter, a first oxygen thermometer and a first oxygen pressure gauge. The second oxygen supply pipeline is provided with at least one of a second oxygen flowmeter, a second oxygen thermometer and a second oxygen pressure gauge.

[0014] In some embodiments, the hydrogen supply pipeline is provided with a first vent valve and a first vent, and the first vent is used to release the hydrogen in the hydrogen supply pipeline to the outside; and / or, the first oxygen supply pipeline is provided with a second vent valve and a second vent, and the second vent is used to release the oxygen in the first oxygen supply pipeline to the outside; and / or, the second oxygen supply pipeline is provided with a third vent valve and a third vent, and the third vent is used to release the oxygen in the second oxygen supply pipeline to the outside.

[0015] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment also includes a first steam extraction pipeline and a second steam extraction pipeline, the stator blades include first-stage stator blades, one end of the first steam extraction pipeline is connected to the steam turbine, and the other end of the first steam extraction pipeline is connected to the combustion chamber; one end of the second steam extraction pipeline is connected to the steam turbine, and the other end of the second steam extraction pipeline is connected to the turbine body, so as to be used to introduce steam into the turbine body to cool the first-stage stator blades and the moving blades.

[0016] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment also includes a first heat exchanger and a second heat exchanger. The first heat exchanger is arranged on the first steam extraction pipeline to heat the steam in the first steam extraction pipeline. The second heat exchanger is arranged on the second steam extraction pipeline to heat the steam in the second steam extraction pipeline.

[0017] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment also includes a third steam extraction pipeline and a fourth steam extraction pipeline, and the stator blades also include second-stage stator blades and third-stage stator blades. One end of the third steam extraction pipeline is connected to the steam turbine, and the other end of the third steam extraction pipeline is connected to the turbine body, so as to be used to pass steam into the turbine body to cool the second-stage stator blades and the moving blades. One end of the fourth steam extraction pipeline is connected to the steam turbine, and the other end of the fourth steam extraction pipeline is connected to the turbine body, so as to be used to pass steam into the turbine body to cool the third-stage stator blades and the moving blades.

[0018] In some embodiments, the first steam extraction pipeline is provided with at least one of a first regulating valve, a first flow meter, a first pressure gauge and a first thermometer; and / or, the second steam extraction pipeline is provided with at least one of a second regulating valve, a second flow meter, a second pressure gauge and a second thermometer; and / or, the third steam extraction pipeline is provided with at least one of a third regulating valve, a third flow meter, a third pressure gauge and a third thermometer; and / or, the fourth steam extraction pipeline is provided with at least one of a fourth regulating valve, a fourth flow meter, a fourth pressure gauge and a fourth thermometer.

[0019] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment also includes a turbine exhaust pipe, one end of the turbine exhaust pipe is connected to the turbine body, and a turbine exhaust thermometer and a turbine exhaust pressure gauge are provided on the turbine exhaust pipe.

[0020] In some embodiments, the other end of the turbine exhaust line is connected to the second heat exchanger and the first heat exchanger in sequence.

[0021] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment further includes a recovery pipeline, which is connected to the turbine exhaust pipeline through the first heat exchanger, and the recovery pipeline is used to pass the gas into the steam turbine.

[0022] In some embodiments, a recovery gas pressure gauge and a recovery gas thermometer are provided on the recovery pipeline.

[0023] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment also includes a combustion chamber exhaust pipeline, which is connected to the combustion chamber and the turbine body, and is provided with a combustion chamber exhaust regulating valve and a combustion chamber exhaust thermometer.

[0024] In some embodiments, the temperature measuring device includes a stationary blade temperature measuring device, a moving blade temperature measuring device and a turbine interstage temperature measuring device. The stationary blade temperature measuring device is used to measure the temperature of the stationary blade, the moving blade temperature measuring device is used to measure the temperature of the moving blade, and the turbine interstage temperature measuring device is used to measure the temperature of the turbine interstage.

[0025] In some embodiments, the hydrogen engine rotating turbine blade cooling effect test equipment also includes a torque meter and a hydraulic dynamometer. The rotor extends out of the turbine body and is connected to the torque meter and the hydraulic dynamometer. The torque meter and the hydraulic dynamometer are used to measure the output power of the turbine.

[0026] A method for testing the cooling effect of a hydrogen combustion engine rotating turbine blade according to an embodiment of the present invention includes the hydrogen combustion engine rotating turbine blade cooling effect testing device described in any one of the above embodiments. The method includes the following steps:

[0027] supplying hydrogen and oxygen into the combustion chamber through the gas supply device;

[0028] Passing part of the extracted steam from the steam turbine into the combustion chamber to cool the temperature in the combustion chamber;

[0029] passing the steam in the combustion chamber into the turbine;

[0030] Passing another portion of the steam extracted from the steam turbine into the turbine body to cool the stationary blades and the moving blades;

[0031] The temperature of at least one of the stationary blades, the moving blades, and the turbine interstage is measured by the temperature measuring device.

[0032] According to an embodiment of the present invention, a method for testing the cooling effect of rotating turbine blades of a hydrogen-fired engine can supply hydrogen and oxygen to the combustion chamber through an air supply device. The hydrogen and oxygen burn in the combustion chamber to form hot steam and pass into the turbine body. Part of the steam extracted from the steam turbine enters the combustion chamber, and another part of the steam extracted from the steam turbine enters the turbine body, thereby cooling the combustion chamber and the turbine. The temperature measuring device can measure the temperature of the stationary blades, moving blades and / or turbine stages, thereby obtaining key parameters characterizing the cooling effect of the cooling blades, and then analyzing the influence of steam on the cooling effect of the turbine blades when the turbine is rotating, providing support for the design of hydrogen-fired engines, and having good practicality.

[0033] In some embodiments, the method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine further includes: introducing hydrogen and oxygen into the combustion chamber through a water electrolysis device;

[0034] Supplementing oxygen into the combustion chamber through an oxygen supplementing device;

[0035] measuring the hydrogen inlet temperature, hydrogen inlet flow rate and hydrogen inlet pressure on the hydrogen supply pipeline by the first hydrogen flowmeter, the first hydrogen thermometer and the first hydrogen pressure gauge;

[0036] measuring the oxygen intake temperature, oxygen intake flow rate and oxygen intake pressure on the first oxygen supply pipeline by using the first oxygen flowmeter, the first oxygen thermometer and the first oxygen pressure gauge;

[0037] The oxygen intake temperature, oxygen intake flow rate and oxygen intake pressure on the second oxygen supply pipeline are measured by the second oxygen flow meter, the second oxygen thermometer and the second oxygen pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of a hydrogen combustion engine rotating turbine blade cooling effect test device according to an embodiment of the present invention.

[0039] Figure 2 It is a schematic diagram of a hydrogen combustion engine rotating turbine blade cooling effect test device according to another embodiment of the present invention.

[0040] Figure 3 Schematic diagram of a method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine according to an embodiment of the present invention.

[0041] Reference numerals:

[0042] 1. Gas supply device; 11. Water electrolysis device; 12. Oxygen supplement device; 13. Hydrogen supply pipeline; 131. First hydrogen flowmeter; 132. First hydrogen thermometer; 133. First hydrogen pressure gauge; 134. First vent valve; 135. First vent; 14. First oxygen supply pipeline; 141. First oxygen flowmeter; 142. First oxygen thermometer; 143. First oxygen pressure gauge; 144. Second vent valve; 145. Second vent; 15. Second oxygen supply pipeline; 151. Second oxygen flowmeter; 152. Second oxygen thermometer; 153. Second oxygen pressure gauge; 154. Third vent valve; 155. Third vent; 16. First compressor; 17. Second compressor; 18. Third compressor; 19. Water inlet pipeline; 191. Water inlet regulating valve; 192. Water inlet flowmeter;

[0043] 2. Combustion chamber; 21. Combustion chamber exhaust pipe; 211. Combustion chamber exhaust regulating valve; 212. Combustion chamber exhaust thermometer;

[0044] 3. Turbine; 31. Turbine body; 32. Rotor; 33. Torque meter; 34. Hydraulic dynamometer;

[0045] 411, first regulating valve; 412, first flowmeter; 413, first pressure gauge; 414, first thermometer; 421, second regulating valve; 422, second flowmeter; 423, second pressure gauge; 424, second thermometer; 431, third regulating valve; 432, third flowmeter; 433, third pressure gauge; 434, third thermometer; 441, fourth regulating valve; 442, fourth flowmeter; 443, fourth pressure gauge; 444, fourth thermometer;

[0046] 5. Temperature measuring device; 51. Stationary blade temperature measuring device; 52. Telemetry and moving blade temperature measuring device; 53. Turbine interstage temperature measuring device;

[0047] 61. First heat exchanger; 62. Second heat exchanger;

[0048] 71. Turbine exhaust pipe; 72. Turbine exhaust temperature gauge; 73. Turbine exhaust pressure gauge;

[0049] 81. Recovery pipeline; 82. Recovery gas pressure gauge; 83. Recovery gas thermometer. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0051] Please refer to the following Figures 1 to 3 The present invention describes a device and method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine according to an embodiment of the present invention.

[0052] like Figure 1 and Figure 2 As shown, a hydrogen combustion engine rotating turbine blade cooling effect test device according to an embodiment of the present invention includes: an air supply device 1, a combustion chamber 2, a turbine 3, a steam turbine (not shown), and a temperature measurement device 5. The turbine 3 can be a single-stage turbine or a multi-stage turbine. For example, in this application, the turbine 3 is a multi-stage turbine. The turbine 3 includes a turbine body 31, stationary blades (not shown), rotor blades (not shown), and a rotor 32. The rotor 32 is disposed through the turbine body 31. The stationary blades are disposed on the turbine body 31, and the rotor blades are disposed on the rotor 32. The rotor 32 rotates relative to the turbine body 31 to drive the rotor blades to rotate.

[0053] The air supply device 1 is connected to the combustion chamber 2 for supplying hydrogen and oxygen into the combustion chamber 2. The combustion chamber 2 is connected to the turbine body 31. The steam turbine is connected to the combustion chamber 2 and the turbine body 31. Part of the steam extraction of the steam turbine enters the combustion chamber 2, and another part of the steam extraction of the steam turbine enters the turbine body 31. The temperature measuring device 5 is connected to the turbine 3 for measuring the temperature of at least one of the stationary blades, the moving blades and the turbine interstage.

[0054] According to an embodiment of the present invention, a hydrogen combustion engine rotating turbine blade cooling effect test device can supply hydrogen and oxygen to the combustion chamber 2 through an air supply device 1. The hydrogen and oxygen burn in the combustion chamber 2 to form hot steam, which is then passed into the turbine body 31. A portion of the steam turbine exhaust enters the combustion chamber 2, and another portion of the steam turbine exhaust enters the turbine body 31, thereby cooling the combustion chamber 2 and the turbine 3. The temperature measurement device 5 can measure the temperature of the stator blades, rotor blades, and / or turbine interstages, thereby obtaining key parameters characterizing the cooling effect of the cooling blades, and further analyzing the effect of steam on the cooling effect of the hydrogen combustion engine rotating turbine blades. For example, the cooling effect test of the rotating turbine blades 3 can be conducted, and the cooling effect test of the rotating turbine blades 3 can also be conducted, providing support for the design of the hydrogen combustion engine, and having good practicality. In addition, because the steam turbine exhaust is used as the cooling steam, the steam generation device can be saved, the scale of the test bench can be simplified, and the use effect of the hydrogen combustion engine rotating turbine blade cooling effect test device is improved.

[0055] Alternatively, as Figure 2 As shown, the gas supply device 1 includes a water electrolysis device 11 and an oxygen supply device 12. The water electrolysis device 11 is used to decompose water into hydrogen and oxygen and introduce them into the combustion chamber 2. The oxygen supply device 12 is used to supplement oxygen into the combustion chamber 2. It can be understood that the water electrolysis device 11 is connected to a water inlet pipe 19, which can supply pure water to the water electrolysis device 11. The water inlet pipe 19 is provided with a water inlet regulating valve 191 and a water inlet flowmeter 192, so as to control the flow of water from the water inlet pipe 19 into the water electrolysis device 11, thereby controlling the flow of hydrogen and oxygen generated by the water electrolysis device 11.

[0056] Specifically, if Figure 2As shown, the gas supply device 1 further includes a hydrogen supply line 13, a first oxygen supply line 14, and a second oxygen supply line 15. The hydrogen supply line 13 is in communication with the water electrolysis device 11 and the combustion chamber 2 and is used to supply hydrogen into the combustion chamber 2. The first oxygen supply line 14 is in communication with the water electrolysis device 11 and the combustion chamber 2 and is used to supply oxygen into the combustion chamber 2. The second oxygen supply line 15 is in communication with the oxygen supplementing device 12 and the combustion chamber 2 and is used to supplement oxygen into the combustion chamber 2. It is understood that the oxygen supplementing device 12 can supplement oxygen into the combustion chamber 2 through the second oxygen supply line 15 to ensure that the hydrogen in the combustion chamber 2 can be fully burned.

[0057] Among them, Figure 2 As shown, the hydrogen supply line 13 is provided with a first hydrogen flowmeter 131, a first hydrogen thermometer 132, and a first hydrogen pressure gauge 133. The first hydrogen flowmeter 131 can measure the flow rate of hydrogen in the hydrogen supply line 13, the first hydrogen thermometer 132 can measure the temperature of the hydrogen in the hydrogen supply line 13, and the first hydrogen pressure gauge 133 can measure the pressure of the hydrogen in the hydrogen supply line 13, thereby obtaining the parameters of the hydrogen entering the combustion chamber 2 from the water electrolysis device 11.

[0058] like Figure 2 As shown, the first oxygen supply line 14 is provided with a first oxygen flowmeter 141, a first oxygen thermometer 142, and a first oxygen pressure gauge 143. The first oxygen flowmeter 141 can measure the flow rate of oxygen in the first oxygen supply line 14, the first oxygen thermometer 142 can measure the temperature of the oxygen in the first oxygen supply line 14, and the first oxygen pressure gauge 143 can measure the pressure of the oxygen in the first oxygen supply line 14, thereby obtaining the parameters of the oxygen entering the combustion chamber 2 from the water electrolysis device 11.

[0059] like Figure 2 As shown, the second oxygen supply line 15 is provided with a second oxygen flowmeter 151, a second oxygen thermometer 152, and a second oxygen pressure gauge 153. The second oxygen flowmeter 151 can measure the flow rate of oxygen in the second oxygen supply line 15, the second oxygen thermometer 152 can measure the temperature of the oxygen in the second oxygen supply line 15, and the second oxygen pressure gauge 153 can measure the pressure of the oxygen in the second oxygen supply line 15, thereby obtaining the parameters of the oxygen entering the combustion chamber 2 from the oxygen replenishing device 12.

[0060] Furthermore, if Figure 2As shown, the hydrogen supply line 13 is provided with a first vent valve 134 and a first vent 135. The first vent 135 is used to release the hydrogen in the hydrogen supply line 13 to the outside. It is understood that by controlling the first vent valve 134 and the first vent 135, hydrogen can be discharged to the atmosphere in an emergency. The first oxygen supply line 14 is provided with a second vent valve 144 and a second vent 145. The second vent 145 is used to release the oxygen in the first oxygen supply line 14 to the outside. It is understood that by controlling the second vent valve 144 and the second vent 145, oxygen can be discharged to the atmosphere in an emergency. The second oxygen supply line 15 is provided with a third vent valve 154 and a third vent 155. The third vent 155 is used to release the oxygen in the second oxygen supply line 15 to the outside. It can be understood that by controlling the third vent valve 154 and the third vent 155, oxygen can be discharged into the atmosphere in an emergency state, thereby improving the reliability of the hydrogen engine rotating turbine blade cooling effect test equipment during use.

[0061] Specifically, if Figure 2 As shown, a first compressor 16 is provided on the hydrogen supply pipeline 13, a second compressor 17 is provided on the first oxygen supply pipeline 14, and a third compressor 18 is provided on the second hydrogen supply pipeline 13, so that the gas in the combustion chamber 2 can be fully burned, thereby improving the combustion effect of the combustion chamber 2.

[0062] In some embodiments, as Figure 1 and Figure 2 As shown, the hydrogen combustion engine rotating turbine blade cooling effect test equipment also includes a first steam extraction pipeline and a second steam extraction pipeline. The stator blades include first-stage stator blades. One end of the first steam extraction pipeline is connected to the steam turbine, and the other end of the first steam extraction pipeline is connected to the combustion chamber 2. One end of the second steam extraction pipeline is connected to the steam turbine, and the other end of the second steam extraction pipeline is connected to the turbine body 31. This is used to supply steam to the turbine body 31 to cool the first-stage stator blades and rotor blades.

[0063] Alternatively, as Figure 1 and Figure 2 As shown, the hydrogen combustion engine rotating turbine blade cooling effect test equipment further includes a first heat exchanger 61 and a second heat exchanger 62. The first heat exchanger 61 is disposed on the first steam extraction pipeline to heat the steam in the first steam extraction pipeline, and the second heat exchanger 62 is disposed on the second steam extraction pipeline to heat the steam in the second steam extraction pipeline. It will be understood that the hydrogen combustion engine rotating turbine blade cooling effect test equipment of this embodiment of the present invention can heat the first section of the extraction steam in the first steam extraction pipeline by disposing the first heat exchanger 61, and can heat the second section of the extraction steam in the second steam extraction pipeline by disposing the second heat exchanger 62.

[0064] Furthermore, if Figure 1 and Figure 2As shown, the cooling effect test equipment for the rotating turbine blades of a hydrogen combustion engine also includes a third steam extraction pipeline and a fourth steam extraction pipeline, and the stator blades also include second-stage stator blades and third-stage stator blades. One end of the third steam extraction pipeline is connected to the steam turbine, and the other end of the third steam extraction pipeline is connected to the turbine body 31, so as to be used to pass steam for cooling the second-stage stator blades and moving blades into the turbine body 31. One end of the fourth steam extraction pipeline is connected to the steam turbine, and the other end of the fourth steam extraction pipeline is connected to the turbine body 31, so as to be used to pass steam for cooling the third-stage stator blades and moving blades into the turbine body 31.

[0065] Specifically, if Figure 1 and Figure 2 As shown, the first steam extraction pipeline is provided with a first regulating valve 411, a first flowmeter 412, a first pressure gauge 413, and a first thermometer 414. The second steam extraction pipeline is provided with a second regulating valve 421, a second flowmeter 422, a second pressure gauge 423, and a second thermometer 424. The third steam extraction pipeline is provided with a third regulating valve 431, a third flowmeter 432, a third pressure gauge 433, and a third thermometer 434. The fourth steam extraction pipeline is provided with a fourth regulating valve 441, a fourth flowmeter 442, a fourth pressure gauge 443, and a fourth thermometer 444.

[0066] It will be appreciated that, in order to increase the flow rate of the working medium and simultaneously cool the temperature of the combustion chamber 2, the first-stage extraction steam of the steam turbine passes through the first heat exchanger 61 through the first extraction steam pipeline before entering the combustion chamber 2. A first regulating valve 411, a first flowmeter 412, a first pressure gauge 413, and a first thermometer 414 are provided on the first extraction steam pipeline. This allows the flow rate of the first-stage extraction steam of the steam turbine entering the combustion chamber 2 to be adjusted and the desired steam parameters to be obtained.

[0067] The second-stage extraction steam of the steam turbine passes through the second extraction steam pipeline, is heated in the second heat exchanger 62, and then enters the turbine 3 to cool the first-stage stationary blades and moving blades. A second regulating valve 421, a second flow meter 422, a second pressure gauge 423, and a second thermometer 424 are provided on the second extraction steam pipeline, so as to adjust the flow rate of the second-stage extraction steam of the steam turbine entering the turbine 3 and obtain the required steam parameters.

[0068] The third-stage extraction steam from the steam turbine passes through the third extraction pipeline and directly enters turbine 3 to cool the first-stage rotor blades before being exhausted. The third extraction pipeline is equipped with a third regulating valve 431, a third flowmeter 432, a third pressure gauge 433, and a third thermometer 434. This allows the flow rate of the third-stage extraction steam entering turbine 3 to be adjusted and the desired steam parameters to be achieved.

[0069] The fourth-stage steam extraction from the steam turbine passes through a fourth extraction pipeline, allowing the fourth-stage extraction steam to enter single-stage turbine 3 for further exhaust cooling. A fourth regulating valve 441, a fourth flowmeter 442, a fourth pressure gauge 443, and a fourth thermometer 444 are provided on the fourth extraction pipeline to regulate the flow rate of the fourth-stage extraction steam entering turbine 3 and achieve the desired cooling steam parameters.

[0070] Furthermore, if Figure 1 and Figure 2 As shown, a combustion chamber exhaust pipe 21 is also provided between the combustion chamber 2 and the turbine 3. The combustion chamber exhaust pipe 21 is connected to the combustion chamber 2 and the turbine body 31. A combustion chamber exhaust regulating valve 211 and a combustion chamber exhaust thermometer 212 are provided on the combustion chamber exhaust pipe 21, so as to adjust the flow rate of the first stage steam extraction of the steam turbine entering the combustion chamber 2 and obtain the required steam parameters and measurement parameters of the exhaust of the combustion chamber 2.

[0071] In some embodiments, as Figure 1 and Figure 2 As shown, the hydrogen engine rotating turbine blade cooling effectiveness test equipment also includes a turbine exhaust line 71. One end of the turbine exhaust line 71 is connected to the turbine body 31. The turbine exhaust line 71 is provided with a turbine exhaust temperature gauge 72 and a turbine exhaust pressure gauge 73. The other end of the turbine exhaust line 71 is connected to the second heat exchanger 62 and the first heat exchanger 61 in sequence.

[0072] The hydrogen engine rotating turbine blade cooling effect test equipment also includes a recovery pipeline 81, which is connected to the turbine exhaust pipeline 71 through the first heat exchanger 61. The recovery pipeline 81 is used to pass the gas into the deaerator of the turbine thermal system.

[0073] It is understandable that if Figure 1 and Figure 2 As shown, turbine 3 exhaust passes through turbine exhaust pipe 71 and enters second heat exchanger 62 to heat the second extraction steam of the steam turbine. After exiting second heat exchanger 62, turbine 3 exhaust enters first heat exchanger 61 to heat the first extraction steam of the steam turbine. After exiting first heat exchanger 61, turbine 3 exhaust returns to the thermal system of the steam turbine through recovery pipe 81. This solution recovers the working fluid and energy of the exhaust and saves the need for experimental exhaust gas recovery equipment. Optionally, recovery pipe 81 is equipped with a recovery gas temperature meter 83 and a recovery gas pressure gauge 82 to obtain the parameters of the gas returning to the steam turbine.

[0074] In some embodiments, as Figure 1 and Figure 2As shown, the temperature measuring device 5 includes a stationary blade temperature measuring device 51, a telemetry and moving blade temperature measuring device 52 and a turbine interstage temperature measuring device 53. The stationary blade temperature measuring device 51 is used to measure the stationary blade temperature, the telemetry and moving blade temperature measuring device 52 is used to measure the temperature of the moving blade, and the turbine interstage temperature measuring device 53 is used to measure the temperature between turbine stages, thereby obtaining the stationary blade temperature, moving blade temperature and interstage temperature of the turbine 3 under different airflow conditions, which are key parameters characterizing the cooling effect of the cooling blades.

[0075] In some embodiments, the cooling effect test equipment for the rotating turbine blades of a hydrogen combustion engine also includes a torque meter 33 and a hydraulic dynamometer 34. The rotor 32 extends out of the turbine body 31 and is connected to the torque meter 33 and the hydraulic dynamometer 34. The torque meter 33 and the hydraulic dynamometer 34 are used to measure the output power of the turbine 3.

[0076] Optionally, the turbine 3 of the hydrogen engine rotating turbine blade cooling effect test equipment of the embodiment of the present invention can be modeled in a 0.3-0.5 ratio, so that the test accuracy of the hydrogen engine rotating turbine blade cooling effect test equipment can be higher and the test data can be more reliable.

[0077] Optionally, the stationary blades and the moving blades of the test turbine 3 adopt the designed blades, so as to better simulate the cooling effect of the designed blades.

[0078] Optionally, for the stators of the test turbine 3, the flow ratio of the exhaust gas and cooling steam of the combustion chamber 2 under the test operating conditions and the design operating conditions of the hydrogen engine are kept similar in motion, and the Mach numbers are approximately equal to ensure similar flow fields.

[0079] Optionally, for the stator blades of the test turbine 3, the Reynolds numbers of the test condition and the design condition are approximately equal, and both enter the self-modeling region with similar flow, thereby ensuring dynamic similarity.

[0080] According to another embodiment of the present invention, a method for testing the cooling effect of a hydrogen combustion engine rotating turbine blade is applied to the hydrogen combustion engine rotating turbine blade cooling effect testing device of any one of the above embodiments. The method comprises the following steps:

[0081] Hydrogen and oxygen are supplied to the combustion chamber 2 through the gas supply device 1;

[0082] Pass part of the steam extracted from the steam turbine into the combustion chamber 2 to cool the temperature inside the combustion chamber 2;

[0083] The steam in the combustion chamber 2 is passed into the turbine 3;

[0084] Another part of the steam extracted from the steam turbine is passed into the turbine body 31 to cool the stationary and moving blades;

[0085] The temperatures of the stationary blades, moving blades and turbine interstages are measured by the temperature measuring device 5 .

[0086] like Figure 2 As shown, according to the cooling effect test method of the rotating turbine blades of a hydrogen combustion engine according to an embodiment of the present invention, hydrogen and oxygen can be supplied to the combustion chamber 2 through the air supply device 1. The hydrogen and oxygen burn in the combustion chamber 2 to form hot steam and pass into the turbine body 31. Part of the steam extraction of the steam turbine enters the combustion chamber 2, and the other part of the steam extraction of the steam turbine enters the turbine body 31, so that the combustion chamber 2 and the turbine 3 can be cooled. The temperature measuring device 5 can measure the temperature of the stationary blades, the moving blades and / or the turbine stage, so as to obtain the key parameters characterizing the cooling effect of the cooling blades, and then analyze the influence of steam on the cooling effect of the rotating turbine blades of the hydrogen combustion engine, provide support for the design of the hydrogen combustion engine, and have good practicality.

[0087] Furthermore, the method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine further includes:

[0088] Hydrogen and oxygen are introduced into the combustion chamber 2 through the water electrolysis device 11;

[0089] Supplementing oxygen into the combustion chamber 2 through the oxygen supplement device 12;

[0090] The hydrogen inlet temperature, hydrogen inlet flow rate and hydrogen inlet pressure on the hydrogen supply pipeline 13 are measured by a first hydrogen flowmeter 131, a first hydrogen thermometer 132 and a first hydrogen pressure gauge 133;

[0091] The first oxygen flowmeter 141, the first oxygen thermometer 142 and the first oxygen pressure meter 143 are used to measure the oxygen intake temperature, oxygen intake flow rate and oxygen intake pressure on the first oxygen supply pipeline;

[0092] The oxygen intake temperature, oxygen intake flow rate and oxygen intake pressure on the second oxygen supply pipeline are measured by the second oxygen flow meter 151 , the second oxygen thermometer 152 and the second oxygen pressure meter 153 .

[0093] Furthermore, the method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine further includes:

[0094] The first stage extraction steam of the steam turbine is passed into the first heat exchanger 61 for heating, and then the heated first stage extraction steam is passed into the combustion chamber 2 to cool the combustion chamber 2;

[0095] Parameters of the first stage steam extraction are measured by the first regulating valve 411, the first flow meter 412, the first pressure gauge 413 and the first thermometer 414;

[0096] The second stage extraction steam of the steam turbine is passed to the second heat exchanger 62 for heating, and then the heated second stage extraction steam is passed into the turbine body 31 to cool the first stage stationary blades and moving blades;

[0097] The parameters of the second stage steam extraction are measured by the second regulating valve 421, the second flow meter 422, the second pressure gauge 423 and the second thermometer 424;

[0098] The third stage extraction steam of the steam turbine is introduced into the turbine body 31 to cool the second stage stator and rotor blades;

[0099] The parameters of the third stage steam extraction are measured by the third regulating valve 431, the third flow meter 432, the third pressure gauge 433 and the third thermometer 434;

[0100] The fourth stage extraction steam of the steam turbine is introduced into the turbine body 31 to cool the third stage stator and rotor blades;

[0101] The parameters of the fourth stage steam extraction are measured by the fourth regulating valve 441 , the fourth flow meter 442 , the fourth pressure gauge 443 and the fourth thermometer 444 .

[0102] Furthermore, the method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine further includes:

[0103] The gas in the turbine body 31 is discharged through the turbine exhaust line 71;

[0104] The exhaust gas temperature and exhaust gas pressure of the turbine exhaust line 71 are measured by the exhaust gas temperature gauge 72 and the exhaust gas pressure gauge 73;

[0105] The gas discharged from the turbine exhaust pipe 71 is sequentially introduced into the second heat exchanger 62 and the first heat exchanger 61 to heat the first stage extraction steam and the second stage extraction steam of the steam turbine;

[0106] The gas from the turbine exhaust line 71 is passed into the steam turbine through the recovery line 81 for recovery and deoxygenation treatment;

[0107] The temperature and pressure of the gas in the recovery pipe 81 are measured by the recovery gas pressure gauge 82 and the recovery gas thermometer 83 .

[0108] Specifically, if Figure 3 As shown, the method for testing the cooling effect of the rotating turbine blades of a hydrogen combustion engine adopts the above-mentioned testing equipment for the cooling effect of the rotating turbine blades of a hydrogen combustion engine, and includes the following steps in sequence.

[0109] S1: Pure water enters the water electrolysis device 11, and the generated hydrogen and oxygen enter the combustion chamber 2 through the first compressor 16 and the second compressor 17 respectively. To ensure sufficient combustion, an oxygen supplement device 12 can be added to supplement oxygen, and it enters the combustion chamber 2 after passing through the third compressor 18. In order to increase the flow rate of the working medium and cool the temperature of the combustion chamber 2, the first stage of the steam extraction of the steam turbine is heated by the first heat exchanger 61 and then enters the combustion chamber 2 to cool the combustion chamber 2. The flow rate, temperature and pressure of hydrogen are obtained according to the hydrogen intake parameter measuring device, the flow rate, temperature and pressure of hydrogen are obtained according to the oxygen intake parameter measuring device, and the flow rate, temperature and pressure of the cooling steam in the combustion chamber 2 are obtained according to the first stage of the steam extraction parameter measuring device of the steam turbine.

[0110] S2: Exhaust from combustion chamber 2 enters turbine 3 through combustion chamber exhaust line 21 to perform work. The output power of turbine 3 is measured using the torque meter and hydraulic dynamometer 34. The exhaust gas after completing the work is discharged through turbine exhaust line 71. The second-stage extraction steam of the steam turbine passes through the second heat exchanger 62 and enters turbine 3 to cool the first-stage stator and rotor blades. The third-stage extraction steam of the steam turbine passes through the third extraction line and directly enters turbine 3 to cool the second-stage stator and rotor blades. The fourth-stage extraction steam of the steam turbine passes through the fourth extraction line and directly enters turbine 3 to cool the third-stage stator and rotor blades. This allows the temperature measurement device 5 to measure the stator and rotor blade temperatures and interstage temperature of turbine 3.

[0111] S3: After the exhaust gas of turbine 3 enters the turbine exhaust pipe 71, the temperature and pressure of the exhaust gas of turbine 3 are obtained through the turbine exhaust thermometer 72 and the turbine exhaust pressure gauge 73. The exhaust gas first passes through the second heat exchanger 62 to heat the second-stage extraction steam of the steam turbine, and then passes through the first heat exchanger 61 to heat the first-stage extraction steam of the steam turbine. After leaving the first heat exchanger 61, the exhaust gas of turbine 3 enters the recovery pipe 81. The flow rate, temperature and pressure in the recovery pipe 81 are measured by the recovery gas pressure gauge 82 and the recovery gas thermometer 83. The gas enters the thermal cycle of the thermal power plant from the recovery pipe 81, realizing the recovery of working fluid and energy and saving the experimental exhaust gas recovery device.

[0112] S4: The flow rates of hydrogen and oxygen are changed by adjusting the opening of the water inlet regulating valve 191 of the water inlet pipe 19 of the water electrolysis device 11, the flow rate of supplementary oxygen is changed by adjusting the opening of the oxygen supplement regulating valve of the oxygen supplement device 12, and the flow rate of cooling steam is changed by adjusting the opening of the steam inlet valve of the steam turbine extraction.

[0113] Repeat S1 to S4 to record the measurement parameters inside the turbine 3, hydrogen intake parameters, oxygen intake parameters, supplementary oxygen intake parameters, cooling steam parameters, combustion chamber exhaust line 21, turbine exhaust line 71, air flow parameters in the recovery line 81, and parameters of the torque meter 33 and the hydraulic dynamometer 34 under different operating conditions, so as to evaluate the blade cooling effect under different operating conditions and cooling steam.

[0114] In summary, the cooling effect test device and method for the rotating turbine blades of a hydrogen-fired engine of the present invention can simulate the working conditions of the steam-cooled rotating turbine blades of a hydrogen-fired engine through experimental methods, and can perform cooling effect tests on the stationary blades of turbine 3 in a rotating state, and can also perform cooling effect tests on the moving blades of turbine 3 in a rotating state.

[0115] By adjusting the flow rates of hydrogen, oxygen, and air entering combustion chamber 2, complete hydrogen combustion and simulation of various operating conditions are achieved. Since turbine extraction steam is used as cooling steam, steam generation equipment can be saved, simplifying the scale of the overhaul test bench. At the same time, the exhaust steam from the single-stage turbine 3 is not discharged directly. Instead, it passes through a two-stage heat exchanger, heats the turbine extraction steam, and then enters the turbine condenser, saving both exhaust steam energy and exhaust equipment. By measuring parameters within the single-stage turbine 3 under different operating conditions, the blade cooling effect under different operating conditions, cooling steam, and cooling water flow rates can be evaluated. The test conditions and design conditions for combustion chamber 2 exhaust and cooling medium parameters are consistent, meeting the criteria of geometric similarity, kinematic similarity, and dynamic similarity. The test results provide experimental support for the autonomous design and operating parameter setting of the hydrogen engine rotary turbine 3 and steam cooling system, and address deficiencies in theoretical analysis.

[0116] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0117] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0118] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0119] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0120] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0121] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those skilled in the art are all within the scope of protection of the present invention.

Claims

1. A hydrogen combustion engine rotating turbine blade cooling effect test equipment, characterized in that: include: An air supply device, a combustion chamber, a turbine, a steam turbine, and a temperature measuring device. The turbine includes a turbine body, stationary blades, moving blades, and a rotor. The rotor is inserted into the turbine body, the stationary blades are arranged on the turbine body, and the moving blades are arranged on the rotor. The rotor rotates relative to the turbine body to drive the moving blades to rotate. The air supply device is in communication with the combustion chamber for supplying hydrogen and oxygen into the combustion chamber, the combustion chamber is in communication with the turbine body, the steam turbine is in communication with the combustion chamber and the turbine body, a portion of the steam extracted from the steam turbine enters the combustion chamber, and another portion of the steam extracted from the steam turbine enters the turbine body, and the temperature measuring device is connected to the turbine for measuring the temperature of at least one of the stationary blades, the moving blades, and the turbine interstage; It also includes a first steam extraction pipeline and a second steam extraction pipeline, the stator blades include first-stage stator blades, one end of the first steam extraction pipeline is connected to the steam turbine, and the other end of the first steam extraction pipeline is connected to the combustion chamber; one end of the second steam extraction pipeline is connected to the steam turbine, and the other end of the second steam extraction pipeline is connected to the turbine body, so as to supply steam to the turbine body for cooling the first-stage stator blades and the moving blades.

2. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 1, characterized in that: The gas supply device includes a water electrolysis device and an oxygen supplement device. The water electrolysis device is used to decompose water into hydrogen and oxygen and introduce the hydrogen and oxygen into the combustion chamber. The oxygen supplement device is used to supplement oxygen into the combustion chamber.

3. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 2, characterized in that: The gas supply device further includes a hydrogen supply pipeline, a first oxygen supply pipeline, and a second oxygen supply pipeline. The hydrogen supply pipeline is in communication with the water electrolysis device and the combustion chamber to supply hydrogen into the combustion chamber. The first oxygen supply pipeline is in communication with the water electrolysis device and the combustion chamber to supply oxygen into the combustion chamber. The second oxygen supply pipeline is in communication with the oxygen supplement device and the combustion chamber to supplement oxygen into the combustion chamber. The hydrogen supply pipeline is provided with at least one of a first hydrogen flowmeter, a first hydrogen thermometer and a first hydrogen pressure gauge, the first oxygen supply pipeline is provided with at least one of a first oxygen flowmeter, a first oxygen thermometer and a first oxygen pressure gauge, and the second oxygen supply pipeline is provided with at least one of a second oxygen flowmeter, a second oxygen thermometer and a second oxygen pressure gauge.

4. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 3, characterized in that: The hydrogen supply pipeline is provided with a first vent valve and a first vent device, and the first vent device is used to release the hydrogen in the hydrogen supply pipeline to the outside; And / or, the first oxygen supply pipeline is provided with a second vent valve and a second vent device, the second vent device is used to release the oxygen in the first oxygen supply pipeline to the outside; And / or, a third vent valve and a third vent device are provided on the second oxygen supply pipeline, and the third vent device is used to release the oxygen in the second oxygen supply pipeline to the outside.

5. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 1, characterized in that: It also includes a first heat exchanger and a second heat exchanger. The first heat exchanger is arranged on the first steam extraction pipeline to heat the steam in the first steam extraction pipeline. The second heat exchanger is arranged on the second steam extraction pipeline to heat the steam in the second steam extraction pipeline.

6. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 5, characterized in that: It also includes a third steam extraction pipeline and a fourth steam extraction pipeline. The stator blades also include second-stage stator blades and third-stage stator blades. One end of the third steam extraction pipeline is connected to the steam turbine, and the other end of the third steam extraction pipeline is connected to the turbine body, so as to be used to pass steam into the turbine body to cool the second-stage stator blades and the moving blades. One end of the fourth steam extraction pipeline is connected to the steam turbine, and the other end of the fourth steam extraction pipeline is connected to the turbine body, so as to be used to pass steam into the turbine body to cool the third-stage stator blades and the moving blades.

7. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 6, characterized in that: The first steam extraction pipeline is provided with at least one of a first regulating valve, a first flow meter, a first pressure gauge and a first thermometer; And / or, the second steam extraction pipeline is provided with at least one of a second regulating valve, a second flow meter, a second pressure gauge and a second thermometer; And / or, the third steam extraction pipeline is provided with at least one of a third regulating valve, a third flow meter, a third pressure gauge and a third thermometer; And / or, the fourth steam extraction pipeline is provided with at least one of a fourth regulating valve, a fourth flow meter, a fourth pressure gauge and a fourth thermometer.

8. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 5, characterized in that: It also includes a turbine exhaust pipeline, one end of which is connected to the turbine body, and a turbine exhaust thermometer and a turbine exhaust pressure gauge are provided on the turbine exhaust pipeline.

9. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 8, characterized in that: The other end of the turbine exhaust pipe is connected to the second heat exchanger and the first heat exchanger in sequence.

10. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 9, characterized in that: It also includes a recovery pipeline, which is connected to the turbine exhaust pipeline through the first heat exchanger, and the recovery pipeline is used to pass the gas into the steam turbine.

11. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 10, characterized in that: The recovery pipeline is provided with a recovery gas pressure gauge and a recovery gas thermometer.

12. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 1, characterized in that: It also includes a combustion chamber exhaust pipeline, which is connected to the combustion chamber and the turbine body. The combustion chamber exhaust pipeline is provided with a combustion chamber exhaust regulating valve and a combustion chamber exhaust thermometer.

13. The hydrogen combustion engine rotating turbine blade cooling effect test equipment according to claim 1, characterized in that: The temperature measuring device includes a stationary blade temperature measuring device, a moving blade temperature measuring device and a turbine interstage temperature measuring device. The stationary blade temperature measuring device is used to measure the stationary blade temperature, the moving blade temperature measuring device is used to measure the temperature of the moving blade, and the turbine interstage temperature measuring device is used to measure the temperature of the turbine interstage.

14. The cooling effect test equipment for rotating turbine blades of a hydrogen combustion engine according to claim 1, characterized in that: It also includes a torque meter and a hydraulic dynamometer. The rotor extends out of the turbine body and is connected to the torque meter and the hydraulic dynamometer. The torque meter and the hydraulic dynamometer are used to measure the output power of the turbine.

15. A method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine, characterized in that: The cooling effect test equipment for a hydrogen combustion engine rotating turbine blade according to any one of claims 1 to 14, wherein the cooling effect test method for a hydrogen combustion engine rotating turbine blade comprises the following steps: supplying hydrogen and oxygen into the combustion chamber through the gas supply device; Passing part of the extracted steam from the steam turbine into the combustion chamber to cool the temperature in the combustion chamber; passing the steam in the combustion chamber into the turbine; Passing another portion of the steam extracted from the steam turbine into the turbine body to cool the stationary blades and the moving blades; The temperature of at least one of the stationary blades, the moving blades, and the turbine interstage is measured by the temperature measuring device.

16. A method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine, characterized in that: The hydrogen combustion engine rotating turbine blade cooling effect test equipment as claimed in claim 4, wherein the hydrogen combustion engine rotating turbine blade cooling effect test method comprises the following steps: supplying hydrogen and oxygen into the combustion chamber through the gas supply device; Passing part of the extracted steam from the steam turbine into the combustion chamber to cool the temperature in the combustion chamber; passing the steam in the combustion chamber into the turbine; Passing another portion of the steam extracted from the steam turbine into the turbine body to cool the stationary blades and the moving blades; measuring the temperature of at least one of the stationary blades, the moving blades, and the turbine interstage by the temperature measuring device; Also includes: introducing hydrogen and oxygen into the combustion chamber through a water electrolysis device; Supplementing oxygen into the combustion chamber through an oxygen supplementing device; measuring the hydrogen inlet temperature, hydrogen inlet flow rate and hydrogen inlet pressure on the hydrogen supply pipeline by the first hydrogen flowmeter, the first hydrogen thermometer and the first hydrogen pressure gauge; measuring the oxygen intake temperature, oxygen intake flow rate and oxygen intake pressure on the first oxygen supply pipeline by using the first oxygen flowmeter, the first oxygen thermometer and the first oxygen pressure gauge; The oxygen intake temperature, oxygen intake flow rate and oxygen intake pressure on the second oxygen supply pipeline are measured by the second oxygen flow meter, the second oxygen thermometer and the second oxygen pressure gauge.

17. A method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine, characterized in that: The hydrogen combustion engine rotating turbine blade cooling effect test equipment as claimed in claim 7, wherein the hydrogen combustion engine rotating turbine blade cooling effect test method comprises the following steps: supplying hydrogen and oxygen into the combustion chamber through the gas supply device; Passing part of the extracted steam from the steam turbine into the combustion chamber to cool the temperature in the combustion chamber; passing the steam in the combustion chamber into the turbine; Passing another portion of the steam extracted from the steam turbine into the turbine body to cool the stationary blades and the moving blades; measuring the temperature of at least one of the stationary blades, the moving blades, and the turbine interstage by the temperature measuring device; Also includes: Passing the first stage extraction steam of the steam turbine into the first heat exchanger for heating, and then passing the heated first stage extraction steam into the combustion chamber to cool the combustion chamber; measuring parameters of the first-stage steam extraction by using the first regulating valve, the first flow meter, the first pressure gauge, and the first thermometer; Passing the second-stage extraction steam of the steam turbine into the second heat exchanger for heating, and then passing the heated second-stage extraction steam into the turbine body to cool the first-stage stator blades and the moving blades; measuring parameters of the second-stage steam extraction by using the second regulating valve, the second flow meter, the second pressure gauge, and the second thermometer; The third stage extraction steam of the steam turbine is introduced into the turbine body to cool the second stage stator blades and the moving blades; measuring parameters of the third stage steam extraction by means of the third regulating valve, the third flow meter, the third pressure gauge and the third thermometer; The fourth stage extraction steam of the steam turbine is introduced into the turbine body to cool the third stage stator blades and the moving blades; The parameters of the fourth stage steam extraction are measured by the fourth regulating valve, the fourth flow meter, the fourth pressure gauge and the fourth thermometer.

18. A method for testing the cooling effect of a rotating turbine blade of a hydrogen combustion engine, characterized in that: The hydrogen combustion engine rotating turbine blade cooling effect test equipment as claimed in claim 11, wherein the hydrogen combustion engine rotating turbine blade cooling effect test method comprises the following steps: supplying hydrogen and oxygen into the combustion chamber through the gas supply device; Passing part of the extracted steam from the steam turbine into the combustion chamber to cool the temperature in the combustion chamber; passing the steam in the combustion chamber into the turbine; Passing another portion of the steam extracted from the steam turbine into the turbine body to cool the stationary blades and the moving blades; measuring the temperature of at least one of the stationary blades, the moving blades, and the turbine interstage by the temperature measuring device; Also includes: discharging the gas in the turbine body through the turbine exhaust pipeline; measuring the exhaust temperature and exhaust pressure of the turbine exhaust line by means of the turbine exhaust temperature meter and the turbine exhaust pressure meter; passing the gas discharged from the turbine exhaust pipe into the second heat exchanger and the first heat exchanger in sequence to heat the first stage extraction steam and the second stage extraction steam of the steam turbine; The gas from the turbine exhaust pipe is introduced into the steam turbine through the recovery pipe for recovery and deoxygenation treatment; The temperature and pressure of the gas in the recovery pipeline are measured by the recovery gas pressure gauge and the recovery gas thermometer.

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