Gas source system for heavy duty gas turbine component test bed

Abstract

The invention discloses a gas source system for a heavy duty gas turbine component test bed. The gas source system comprises a component test bed; the air compression part comprises a main air compressor and a main air supercharger, the pressure of low-pressure compressed air discharged from an outlet of the main air compressor is a first preset value, and the outlet of the main air compressor is communicated with an air source inlet of the component test bed through a first pipeline; an outlet of the main air compressor is communicated with an inlet of the main air supercharger through a supercharging pipeline, and an outlet of the main air supercharger is communicated with an air source inlet of the component test bed through a second pipeline; the heating part comprises a first-stage heating furnace and a second-stage heating furnace; and the cooling part is connected with the third pipeline and the fourth pipeline. Therefore, the gas source system for the heavy-duty gas turbine component test bed has the advantage that the gas supply requirement of the component test bed can be met conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of gas turbines, and in particular to a gas source system for a heavy-duty gas turbine component test bench. Background Art

[0002] Gas turbines consist of three major components: compressor, combustion chamber and turbine. During the development of gas turbines, in-depth component tests must be carried out around the three major components. Through various component tests, key parameters in various aspects such as performance, structure, and process can be obtained to test and correct related design analysis and processing and manufacturing processes. The gas turbine combustion chamber and turbine component tests require the use of compressed air with different pressures and temperatures to simulate the actual operating conditions of different components. Therefore, the gas turbine combustion chamber and turbine component test benches need to be equipped with an air source system. In related technologies, the compressed air provided by the test facilities has fewer types of temperatures and pressures, and the adjustment accuracy is small. It is difficult to meet a variety of test conditions and consumes a lot of energy. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides an air source system for a heavy-duty gas turbine component test bench.

[0004] The gas source system for a heavy-duty gas turbine component test bench according to an embodiment of the present invention comprises:

[0005] A component test bench, wherein the component test bench has an air source inlet;

[0006] An air compression unit, the air compression unit comprising a main air compressor and a main air booster, the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor is a first preset value, the pressure of the medium-pressure compressed air discharged from the outlet of the main air booster is a second preset value, the second preset value is greater than the first preset value, the outlet of the main air compressor is connected to the air source inlet of the component test bench through a first pipeline, the outlet of the main air compressor is connected to the inlet of the main air booster through a boosting pipeline, and the outlet of the main air booster is connected to the air source inlet of the component test bench through a second pipeline;

[0007] A heating part, wherein the heating part includes a primary heating furnace and a secondary heating furnace, wherein the outlet of the main air compressor, the first connecting pipeline, the primary heating furnace, the second connecting pipeline, the secondary heating furnace, the third pipeline and the gas source inlet of the component test bench are sequentially connected, and the outlet of the main air booster, the third connecting pipeline, the primary heating furnace, the fourth connecting pipeline, the secondary heating furnace, the fourth pipeline and the gas source inlet of the component test bench are sequentially connected;

[0008] a cooling unit connected to the third pipeline and used to reduce the temperature of the low-pressure compressed air in the third pipeline, and connected to the fourth pipeline and used to reduce the temperature of the medium-pressure compressed air in the fourth pipeline;

[0009] The flow rate, pressure and temperature of the compressed air entering the component test bench are adjusted by controlling the flow rate of each of the first pipeline, the second pipeline, the third pipeline and the fourth pipeline into the air source inlet of the component test bench.

[0010] Therefore, the gas source system for a heavy-duty gas turbine component test bench according to an embodiment of the present invention has the advantage of being able to easily meet the gas supply demand of the component test bench.

[0011] In some embodiments, the cooling part includes a low-pressure cold air mixing tube and a medium-pressure cold air mixing tube, and the low-pressure cold air mixing tube and the medium-pressure cold air mixing tube are both provided with cold air mixing valves that can control their flow rates. The third pipeline and the first pipeline are connected through the low-pressure cold air mixing tube so that the low-pressure compressed air in the first pipeline can pass into the third pipeline through the low-pressure cold air mixing tube, and the fourth pipeline and the second pipeline are connected through the medium-pressure cold air mixing tube so that the medium-pressure compressed air in the second pipeline can pass into the fourth pipeline through the medium-pressure cold air mixing tube.

[0012] In some embodiments, the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are provided with a Rafale nozzle at one end adjacent to the component test bench.

[0013] In some embodiments, the outlet of the component test bench is connected to the first exhaust tower;

[0014] The outlet of the main air compressor is connected to the second exhaust tower through the first exhaust pipe;

[0015] The outlet of the main gas booster is communicated with the second exhaust tower through the second exhaust pipe.

[0016] The air source system for a heavy-duty gas turbine component test bench in an embodiment of the present invention includes a cold air compressor, which is used to provide cooling air. The outlet of the cold air compressor is connected to the cooling inlet of the component test bench through a seventh pipeline. A heater is provided on the seventh pipeline, and the heater is used to adjust the temperature of the cooling air in the seventh pipeline.

[0017] In some embodiments, the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor is greater than or equal to 0.8 MPa and less than or equal to 1.2 MPa;

[0018] The pressure of the medium-pressure compressed air discharged from the outlet of the main air booster is greater than or equal to 3.5 MPa and less than or equal to 4 MPa.

[0019] In some embodiments, the burners of the primary heating furnace and the secondary heating furnace use natural gas as fuel, and the inlets of the burners of the primary heating furnace and the secondary heating furnace are connected to the outlet of the gas supply pipe;

[0020] The flue gas outlets of the burners of the primary heating furnace and the secondary heating furnace are connected to the chimney through a flue gas pipeline.

[0021] In some embodiments, a natural gas performance heater is provided on the gas supply pipe, and the natural gas performance heater can heat the natural gas in the gas supply pipe.

[0022] In some embodiments, the natural gas performance heater may heat the natural gas in the gas supply pipe to a third preset value, where the third preset value is greater than or equal to 100°C and less than or equal to 200°C.

[0023] In some embodiments, the heat source outlet of the natural gas performance heater is connected to the heat source inlet of the natural gas performance heater through a circulation pipeline, and the circulation pipeline is connected to the flue gas pipeline through a waste heat exchanger so that the flue gas in the flue gas pipeline can heat the working fluid in the circulation pipeline through the waste heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of a gas source system for a heavy-duty gas turbine component test bench according to an embodiment of the present invention.

[0025] Figure numerals: 1. main air compressor, 2. main air booster, 3. cold air compressor, 4. primary heating furnace, 5. waste heat exchanger, 6. natural gas performance heater, 7. heater, 8. secondary heating furnace, 9. Rafale nozzle, 10. component test bench, 20. first exhaust tower, 21. second exhaust tower, 22. first exhaust pipe, 23. second exhaust pipe, 30. chimney, 41. first connecting pipeline, 43. third connecting pipeline, 44. flue gas pipeline, 45. gas supply pipe, 61. circulation pipeline, 101. first pipeline, 102. second pipeline, 103. third pipeline, 104. fourth pipeline, 105. low-pressure cold air mixing pipe, 106. medium-pressure cold air mixing pipe, 107. seventh pipeline. DETAILED DESCRIPTION

[0026] 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.

[0027] The following describes the gas source system for a heavy-duty gas turbine component test bench according to an embodiment of the present invention with reference to the accompanying drawings. Figure 1 As shown, the air source system for a heavy-duty gas turbine component test bench according to an embodiment of the present invention includes a component test bench 10, an air compression unit, a heating unit, and a temperature reduction unit.

[0028] The component test bench 10 has a gas source inlet. Specifically, the outlet of the component test bench 10 is communicated with the first exhaust tower 20, so that the gas discharged from the outlet of the component test bench 10 can be passed into the first exhaust tower 20 for treatment.

[0029] The air compression unit includes a main air compressor 1 and a main air booster 2. The pressure of the low-pressure compressed air discharged from the outlet of the main air compressor 1 is a first preset value, and the pressure of the medium-pressure compressed air discharged from the outlet of the main air booster 2 is a second preset value. The second preset value is greater than the first preset value, that is, the pressure of the medium-pressure compressed air discharged from the outlet of the main air booster 2 is greater than the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor 1. The outlet of the main air compressor 1 is connected to the air source inlet of the component test bench 10 through the first pipeline 101, so that the main air compressor 1 can provide low-pressure compressed air for the component test bench 10. The outlet of the main air compressor 1 is connected to the inlet of the main air booster 2 through a boosting pipeline, and the outlet of the main air booster 2 is connected to the air source inlet of the component test bench 10 through a second pipeline 102, that is, the low-pressure compressed air discharged from the outlet of the main air compressor 1 is passed into the main air booster 2 to be boosted into medium-pressure compressed air, and then passed into the component test bench 10 to provide medium-pressure compressed air for the component test bench 10.

[0030] In some embodiments, the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor 1 is greater than or equal to 0.8 MPa and less than or equal to 1.2 MPa. The pressure of the medium-pressure compressed air discharged from the outlet of the main air booster 2 is greater than or equal to 3.5 MPa and less than or equal to 4 MPa. For example, the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor 1 is 1 MPa. The pressure of the medium-pressure compressed air discharged from the outlet of the main air booster 2 is 3.6 MPa, 3.7 MPa or 3.8 MPa.

[0031] like Figure 1 As shown, in some embodiments, the outlet of the main air compressor 1 is communicated with the second exhaust tower 21 through the first exhaust pipe 22, and the outlet of the main air booster 2 is communicated with the second exhaust tower 21 through the second exhaust pipe 23. Thus, when the component test bench 10 does not need compressed air, the compressed air generated by the main air compressor 1 and the main air booster 2 can be directly introduced into the second exhaust tower 21.

[0032] The heating part includes a primary heating furnace 4 and a secondary heating furnace 8. The capacity of the primary heating furnace 4 is greater than that of the secondary heating furnace 8, and the temperature control accuracy of the secondary heating furnace 8 is higher than that of the primary heating furnace 4. The primary heating furnace 4 and the secondary heating furnace 8 can increase the heating rate of the compressed air and increase the temperature control accuracy. For example, the primary heating furnace 4 can heat the compressed air to 350°C, and the secondary heating furnace 8 can heat the compressed air to 550°C.

[0033] The outlet of the main air compressor 1, the first connecting pipeline 41, the primary heating furnace 4, the second connecting pipeline, the secondary heating furnace 8, the third pipeline 103 and the air source inlet of the component test bench 10 are sequentially connected. Thus, the low-pressure compressed air discharged from the main air compressor 1 can enter the primary heating furnace 4 and the secondary heating furnace 8 in sequence for heating, and the heated low-pressure compressed air is passed into the component test bench 10 through the third pipeline 103, so as to provide the component test bench 10 with low-pressure compressed air with a preset temperature after heating.

[0034] The outlet of the main gas booster 2, the third connecting pipeline 43, the primary heating furnace 4, the fourth connecting pipeline, the secondary heating furnace 8, the fourth pipeline 104 and the gas source inlet of the component test bench 10 are connected in sequence. Thus, the medium-pressure compressed air discharged from the main gas booster 2 can enter the primary heating furnace 4 and the secondary heating furnace 8 in sequence for heating, and the heated medium-pressure compressed air is passed into the component test bench 10 through the fourth pipeline 104, so as to provide the component test bench 10 with the medium-pressure compressed air with a preset temperature after heating.

[0035] The cooling unit is connected to the third pipeline 103 and can be used to reduce the temperature of the low-pressure compressed air in the third pipeline 103. The cooling unit is connected to the fourth pipeline 104 and can be used to reduce the temperature of the medium-pressure compressed air in the fourth pipeline 104. Therefore, the cooling unit can adjust the temperature of the compressed air in the third pipeline 103 and the fourth pipeline 104, so as to facilitate the adjustment of the temperature of the compressed air introduced into the component test bench 10.

[0036] In some embodiments, the cooling unit includes a low-pressure cold air mixing pipe 105 and a medium-pressure cold air mixing pipe 106. Cold air mixing valves that can control their flow rates are provided on the low-pressure cold air mixing pipe 105 and the medium-pressure cold air mixing pipe 106. The temperature control accuracy of the air source is further improved by the automatically controlled cold air mixing valve.

[0037] The third pipeline 103 and the first pipeline 101 are connected through the low-pressure cold air mixing pipe 105, so that the low-pressure compressed air in the first pipeline 101 can be passed into the third pipeline 103 through the low-pressure cold air mixing pipe 105. The temperature of the low-pressure compressed air in the first pipeline 101 is lower than the temperature of the low-pressure compressed air in the third pipeline 103 after being heated by the primary heating furnace 4 and the secondary heating furnace 8. The cold air mixing valve in the first pipeline 101 can adjust the flow rate of the low-pressure compressed air passing into the third pipeline 103, so as to adjust the temperature of the low-pressure compressed air in the third pipeline 103.

[0038] The fourth pipeline 104 and the second pipeline 102 are connected through the medium-pressure cold air mixing pipe 106, so that the medium-pressure compressed air in the second pipeline 102 can be passed into the fourth pipeline 104 through the medium-pressure cold air mixing pipe 106. The temperature of the medium-pressure compressed air in the second pipeline 102 is lower than the temperature of the medium-pressure compressed air in the fourth pipeline 104 after being heated by the first-stage heating furnace 4 and the second-stage heating furnace 8. The cold air mixing valve in the second pipeline 102 can adjust the flow rate of the medium-pressure compressed air passing into the fourth pipeline 104, so as to adjust the temperature of the low-pressure compressed air in the fourth pipeline 104.

[0039] In some embodiments, the first pipeline 101 , the second pipeline 102 , the third pipeline 103 , and the fourth pipeline 104 are each provided with a temperature detector to monitor the temperature of the compressed air in the first pipeline 101 , the second pipeline 102 , the third pipeline 103 , and the fourth pipeline 104 .

[0040] The flow rate of each of the first pipeline 101, the second pipeline 102, the third pipeline 103 and the fourth pipeline 104 entering the gas source inlet of the component test bench 10 is controlled so as to adjust the flow rate, pressure and temperature of the compressed air entering the component test bench 10. Specifically, the first pipeline 101, the second pipeline 102, the third pipeline 103 and the fourth pipeline 104 are provided with a Rafale nozzle 9 at one end adjacent to the component test bench 10. The Rafale nozzle 9 is arranged on the pipeline close to the gas use end so that the first pipeline 101, the second pipeline 102, the third pipeline 103 and the fourth pipeline 104 can select Rafale nozzles 9 with different throat flow areas according to different gas use conditions of the component test bench 10 to provide a stable gas supply flow rate. That is, the flow rate, temperature and pressure of the compressed air entering the component test bench 10 can be adjusted by controlling the gas outlet flow rate of each of the first pipeline 101, the second pipeline 102, the third pipeline 103 and the fourth pipeline 104.

[0041] like Figure 1As shown, the air source system for the heavy-duty gas turbine component test bench includes a cold air compressor 3, which is used to provide cooling air. The outlet of the cold air compressor 3 is connected to the cooling inlet of the component test bench 10 through the seventh pipeline 107. The seventh pipeline 107 is provided with a heater 7, and the heater 7 is used to adjust the temperature of the cooling air in the seventh pipeline 107. Therefore, when the temperature of the cooling air in the seventh pipeline 107 is low, the heater 7 can heat the temperature of the cooling air in the seventh pipeline 107. For example, the heater 7 is an electric heater.

[0042] In some embodiments, the burners of the primary heating furnace 4 and the secondary heating furnace 8 use natural gas as fuel, the inlets of the burners of the primary heating furnace 4 and the secondary heating furnace 8 are connected to the outlet of the gas supply pipe 45, and the smoke outlets of the burners of the primary heating furnace 4 and the secondary heating furnace 8 are connected to the chimney 30 through the smoke pipeline 44 to discharge the smoke.

[0043] In some embodiments, a natural gas performance heater 6 is provided on the gas supply pipe 45, and the natural gas performance heater 6 can heat the natural gas in the gas supply pipe 45. Specifically, the natural gas performance heater 6 can heat the natural gas in the gas supply pipe 45 to a third preset value, which is greater than or equal to 100° C. and less than or equal to 200° C. For example, the natural gas performance heater 6 can heat the natural gas in the gas supply pipe 45 to 120° C., 130° C., 150° C., 160° C., or 180° C.

[0044] In some embodiments, the heat source outlet of the natural gas performance heater 6 is connected to the heat source inlet of the natural gas performance heater 6 through the circulation pipeline 61, and the circulation pipeline 61 is connected to the flue gas pipeline 44 through the waste heat exchanger 5, so that the flue gas in the flue gas pipeline 44 can heat the working medium in the circulation pipeline 61 through the waste heat exchanger 5. The working medium discharged from the waste heat exchanger 5 and passed into the circulation pipeline 61 is passed into the natural gas performance heater 6 to heat the natural gas in the gas supply pipe 45. In other words, the waste heat exchanger 5 and the natural gas performance heater 6 cooperate to utilize the waste heat of the flue gas discharged from the flue gas outlet of the burner of the primary heating furnace 4 and the secondary heating furnace 8 to heat the temperature of the inlet natural gas entering the burner of the primary heating furnace 4 and the secondary heating furnace 8, thereby improving energy utilization and reducing energy waste. For example, the working medium in the circulation pipeline 61 is circulating water.

[0045] According to the gas source system for the heavy-duty gas turbine component test bench according to the embodiment of the present invention, a primary heating furnace 4 and a secondary heating furnace 8 are provided so that the first pipeline 101, the second pipeline 102, the third pipeline 103 and the fourth pipeline 104 can respectively supply compressed air with different pressures and temperatures to the component test bench 10. By adjusting the flow rate of the compressed air discharged from each of the first pipeline 101, the second pipeline 102, the third pipeline 103 and the fourth pipeline 104, the flow rate, temperature and pressure of the compressed air entering the component test bench 10 can be adjusted, thereby meeting the gas supply demand of the component test bench 10.

[0046] Therefore, the gas source system for the heavy-duty gas turbine component test bench according to the embodiment of the present invention has the advantage of being able to easily meet the gas supply demand of the component test bench 10 .

[0047] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. 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 described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A gas source system for a heavy-duty gas turbine component test bench, characterized in that: include: A component test bench, wherein the component test bench has an air source inlet; An air compression unit, the air compression unit comprising a main air compressor and a main air booster, the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor is a first preset value, the pressure of the medium-pressure compressed air discharged from the outlet of the main air booster is a second preset value, the second preset value is greater than the first preset value, the outlet of the main air compressor is connected to the air source inlet of the component test bench through a first pipeline, the outlet of the main air compressor is connected to the inlet of the main air booster through a boosting pipeline, and the outlet of the main air booster is connected to the air source inlet of the component test bench through a second pipeline; A heating part, wherein the heating part includes a primary heating furnace and a secondary heating furnace, wherein the outlet of the main air compressor, the first connecting pipeline, the primary heating furnace, the second connecting pipeline, the secondary heating furnace, the third pipeline and the gas source inlet of the component test bench are sequentially connected, and the outlet of the main air booster, the third connecting pipeline, the primary heating furnace, the fourth connecting pipeline, the secondary heating furnace, the fourth pipeline and the gas source inlet of the component test bench are sequentially connected; a cooling unit connected to the third pipeline and used to reduce the temperature of the low-pressure compressed air in the third pipeline, and connected to the fourth pipeline and used to reduce the temperature of the medium-pressure compressed air in the fourth pipeline; The flow rate, pressure and temperature of the compressed air entering the component test bench are adjusted by controlling the flow rate of each of the first pipeline, the second pipeline, the third pipeline and the fourth pipeline into the air source inlet of the component test bench.

2. The gas source system for a heavy-duty gas turbine component test bench according to claim 1, characterized in that: The cooling part includes a low-pressure cold air mixing tube and a medium-pressure cold air mixing tube, and the low-pressure cold air mixing tube and the medium-pressure cold air mixing tube are both provided with cold air mixing valves that can control their flow rates. The third pipeline and the first pipeline are connected through the low-pressure cold air mixing tube so that the low-pressure compressed air in the first pipeline can pass into the third pipeline through the low-pressure cold air mixing tube, and the fourth pipeline and the second pipeline are connected through the medium-pressure cold air mixing tube so that the medium-pressure compressed air in the second pipeline can pass into the fourth pipeline through the medium-pressure cold air mixing tube.

3. The gas source system for a heavy-duty gas turbine component test bench according to claim 1, characterized in that: The first pipeline, the second pipeline, the third pipeline and the fourth pipeline are provided with a Rafale nozzle at one end adjacent to the component test bench.

4. The gas source system for a heavy-duty gas turbine component test bench according to claim 1, characterized in that: The outlet of the component test bench is communicated with the first exhaust tower; The outlet of the main air compressor is connected to the second exhaust tower through the first exhaust pipe; The outlet of the main gas booster is communicated with the second exhaust tower through the second exhaust pipe.

5. The gas source system for a heavy-duty gas turbine component test bench according to claim 1, characterized in that: It includes a cold air compressor, which is used to provide cooling air. The outlet of the cold air compressor is connected to the cooling inlet of the component test bench through a seventh pipeline. The seventh pipeline is provided with a heater, which is used to adjust the temperature of the cooling air in the seventh pipeline.

6. The gas source system for a heavy-duty gas turbine component test bench according to claim 1, characterized in that: The pressure of the low-pressure compressed air discharged from the outlet of the main air compressor is greater than or equal to 0.8 MPa and less than or equal to 1.2 MPa; The pressure of the medium-pressure compressed air discharged from the outlet of the main air booster is greater than or equal to 3.5 MPa and less than or equal to 4 MPa.

7. The gas source system for a heavy-duty gas turbine component test bench according to any one of claims 1 to 6, characterized in that: The burners of the primary heating furnace and the secondary heating furnace use natural gas as fuel, and the inlets of the burners of the primary heating furnace and the secondary heating furnace are connected to the outlet of the gas supply pipe; The flue gas outlets of the burners of the primary heating furnace and the secondary heating furnace are connected to the chimney through a flue gas pipeline.

8. The gas source system for a heavy-duty gas turbine component test bench according to claim 7, characterized in that: The gas supply pipe is provided with a natural gas performance heater, and the natural gas performance heater can heat the natural gas in the gas supply pipe.

9. The gas source system for a heavy-duty gas turbine component test bench according to claim 8, characterized in that: The natural gas performance heater can heat the natural gas in the gas supply pipe to a third preset value, and the third preset value is greater than or equal to 100° C. and less than or equal to 200° C.

10. The gas source system for a heavy-duty gas turbine component test bench according to claim 7, characterized in that: The heat source outlet of the natural gas performance heater is connected to the heat source inlet of the natural gas performance heater through a circulation pipeline, and the circulation pipeline is connected to the flue gas pipeline through a waste heat exchanger so that the flue gas in the flue gas pipeline can heat the working medium in the circulation pipeline through the waste heat exchanger.

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