Gas source system for heavy-duty gas turbine component test bed

Abstract

The gas supply system for a heavy-duty gas turbine component test bench of the present invention includes: a component test bench; an air compression unit, comprising a main air compressor and a main air booster compressor, wherein the pressure of the low-pressure compressed air discharged from the outlet of the main air compressor is a first preset value, the outlet of the main air compressor is connected to the gas supply 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 compressor through a booster pipeline, and the outlet of the main air booster compressor is connected to the gas supply inlet of the component test bench through a second pipeline; a heating unit, comprising a primary heating furnace and a secondary heating furnace; and a cooling unit, connected to a third pipeline and a fourth pipeline. Therefore, the gas supply system for a heavy-duty gas turbine component test bench according to the present invention has the advantage of easily meeting the gas supply requirements of the component test bench.

Description

Technical Field

[0001] This invention relates to the field of gas turbine technology, and more specifically to a gas source system for a heavy-duty gas turbine component test bench. Background Technology

[0002] A gas turbine comprises three main components: the compressor, the combustion chamber, and the turbine. During gas turbine development, in-depth component testing is essential, focusing on these three components to obtain key parameters related to performance, structure, and manufacturing processes. These parameters are then used to verify and refine relevant design analyses and manufacturing techniques. Combustion chamber and turbine component testing requires compressed air at varying pressures and temperatures to simulate the actual operating conditions of different components. Therefore, test benches for gas turbine combustion chambers and turbine components need to be equipped with corresponding air supply systems. Currently, existing testing facilities offer limited types of compressed air at various temperatures and pressures, have low adjustment precision, struggle to meet diverse testing conditions, and consume significant energy. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a gas source system for a heavy-duty gas turbine component test bench.

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

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

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

[0007] The heating section includes a primary heating furnace and a secondary heating furnace. 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 air source inlet of the component test bench are connected in sequence. The outlet of the main air booster compressor, the third connecting pipeline, the primary heating furnace, the fourth connecting pipeline, the secondary heating furnace, the fourth pipeline, and the air source inlet of the component test bench are connected in sequence.

[0008] A cooling section is connected to the third pipeline and can be used to reduce the temperature of the low-pressure compressed air in the third pipeline; the cooling section is connected to the fourth pipeline and can be used to reduce the temperature of the medium-pressure compressed air in the fourth pipeline.

[0009] Specifically, the flow rate of compressed air entering the component test bench is adjusted by controlling the flow rate of each of the first, second, third, and fourth pipelines into the air source inlet.

[0010] Therefore, the gas supply system for heavy-duty gas turbine component test benches according to embodiments of the present invention has the advantage of easily meeting the gas supply requirements of component test benches.

[0011] In some embodiments, the cooling section includes a low-pressure cold air mixing pipe and a medium-pressure cold air mixing pipe. Both the low-pressure cold air mixing pipe and the medium-pressure cold air mixing pipe are equipped 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 pipe so that low-pressure compressed air in the first pipeline can be introduced into the third pipeline through the low-pressure cold air mixing pipe. The fourth pipeline and the second pipeline are connected through the medium-pressure cold air mixing pipe so that medium-pressure compressed air in the second pipeline can be introduced into the fourth pipeline through the medium-pressure cold air mixing pipe.

[0012] In some embodiments, the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline are provided with Laval nozzles 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 connected to the second exhaust tower through the second exhaust pipe.

[0016] The air supply system for the heavy-duty gas turbine component test bench of this 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, which is used to regulate 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 via flue gas pipelines.

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

[0022] In some embodiments, the natural gas performance heater can heat the natural gas in the gas supply pipe to a third preset value, the third preset value being 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 via a circulation pipeline, and the circulation pipeline is connected to the flue gas pipeline via 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. Attached Figure Description

[0024] Figure 1 This is a 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] Reference numerals: 1. Main air compressor; 2. Main air booster; 3. Cold air compressor; 4. First-stage heating furnace; 5. Waste heat exchanger; 6. Natural gas performance heater; 7. Heater; 8. Second-stage heating furnace; 9. Laval 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 pipe; 43. Third connecting pipe; 44. Flue gas pipe; 45. Gas supply pipe; 61. Circulation pipe; 101. First pipe; 102. Second pipe; 103. Third pipe; 104. Fourth pipe; 105. Low-pressure cold air mixing pipe; 106. Medium-pressure cold air mixing pipe; 107. Seventh pipe. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] The gas supply system for a heavy-duty gas turbine component test bench according to an embodiment of the present invention is described below with reference to the accompanying drawings. Figure 1 As shown, the air supply 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 section, a heating section, and a cooling section.

[0028] The component test bench 10 has a gas inlet. Specifically, the outlet of the component test bench 10 is connected to the first exhaust tower 20, so that the gas discharged from the outlet of the component test bench 10 can be processed in the first exhaust tower 20.

[0029] The air compression section includes a main air compressor 1 and a main air booster compressor 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 compressor 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 compressor 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 a first pipeline 101, so that the main air compressor 1 can provide low-pressure compressed air to 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 booster pipeline. 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 introduced into the main air booster 2 and pressurized into medium-pressure compressed air before being introduced 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 compressor 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 compressor 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 connected to the second exhaust tower 21 through the first exhaust pipe 22, and the outlet of the main air booster compressor 2 is connected to the second exhaust tower 21 through the second exhaust pipe 23. Therefore, when the component test bench 10 does not require compressed air, the compressed air generated by the main air compressor 1 and the main air booster compressor 2 can be directly introduced into the second exhaust tower 21.

[0032] The heating section includes a primary heating furnace 4 and a secondary heating furnace 8. The capacity of the primary heating furnace 4 is larger 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 improve the heating rate of 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 pipe 41, the first-stage heating furnace 4, the second connecting pipe, the second-stage heating furnace 8, the third pipe 103, and the air source inlet of the component test bench 10 are connected in sequence. This allows the low-pressure compressed air discharged from the main air compressor 1 to sequentially enter the first-stage heating furnace 4 and the second-stage heating furnace 8 for heating. The heated low-pressure compressed air is then introduced into the component test bench 10 through the third pipe 103, providing the component test bench 10 with heated low-pressure compressed air at a preset temperature.

[0034] The outlet of the main air booster 2, the third connecting pipe 43, the first-stage heating furnace 4, the fourth connecting pipe, the second-stage heating furnace 8, the fourth pipe 104, and the air source inlet of the component test bench 10 are connected in sequence. This allows the medium-pressure compressed air discharged from the main air booster 2 to sequentially enter the first-stage heating furnace 4 and the second-stage heating furnace 8 for heating. The heated medium-pressure compressed air is then introduced into the component test bench 10 through the fourth pipe 104, providing the component test bench 10 with heated medium-pressure compressed air at a preset temperature.

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

[0036] In some embodiments, the cooling section includes a low-pressure cold air mixing pipe 105 and a medium-pressure cold air mixing pipe 106, both of which are equipped with cold air mixing valves that can control their flow rates. The automatically controlled cold air mixing valves further improve the temperature control accuracy of the air source.

[0037] The third pipeline 103 and the first pipeline 101 are connected by a low-pressure cold air mixing pipe 105, so that the low-pressure compressed air in the first pipeline 101 can be introduced 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 regulate the flow rate of the low-pressure compressed air introduced into the third pipeline 103, so as to regulate 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 by a medium-pressure cold air mixing pipe 106, so that the medium-pressure compressed air in the second pipeline 102 can be introduced 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 primary heating furnace 4 and the secondary heating furnace 8. The cold air mixing valve in the second pipeline 102 can regulate the flow rate of the medium-pressure compressed air introduced into the fourth pipeline 104, so as to regulate the temperature of the low-pressure compressed air in the fourth pipeline 104.

[0039] In some embodiments, a temperature sensor is provided on the first pipe 101, the second pipe 102, the third pipe 103, and the fourth pipe 104 to monitor the temperature of the compressed air in the first pipe 101, the second pipe 102, the third pipe 103, and the fourth pipe 104.

[0040] Specifically, the flow rate of compressed air entering the component test bench 10 is adjusted by controlling the flow rate of each of the first pipeline 101, second pipeline 102, third pipeline 103, and fourth pipeline 104 at the air source inlet. Specifically, each of the first pipeline 101, second pipeline 102, third pipeline 103, and fourth pipeline 104 is equipped with a Laval nozzle 9 near one end of the component test bench 10. By installing the Laval nozzle 9 on the pipelines near the air consumption end, different throat flow areas of the first pipeline 101, second pipeline 102, third pipeline 103, and fourth pipeline 104 can be selected according to different air consumption conditions of the component test bench 10, providing a stable air supply flow rate. Thus, the flow rate, temperature, and pressure of compressed air entering the component test bench 10 can be adjusted by controlling the outlet flow rate of each of the first pipeline 101, second pipeline 102, third pipeline 103, and fourth pipeline 104.

[0041] like Figure 1As shown, the air supply system for the heavy-duty gas turbine component test bench includes a cold air compressor 3, which provides cooling air. The outlet of the cold air compressor 3 is connected to the cooling inlet of the component test bench 10 via a seventh pipe 107. A heater 7 is installed on the seventh pipe 107 to regulate the temperature of the cooling air within the seventh pipe 107. Thus, when the temperature of the cooling air within the seventh pipe 107 is low, the heater 7 can heat the cooling air within the seventh pipe 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. The flue gas outlets of the burners of the primary heating furnace 4 and the secondary heating furnace 8 are connected to the chimney 30 through the flue gas pipe 44 to discharge flue gas.

[0043] In some embodiments, a natural gas performance heater 6 is provided on the gas supply pipe 45, which 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 via a circulation pipeline 61. The circulation pipeline 61 is connected to the flue gas pipeline 44 via a waste heat exchanger 5, so that the flue gas in the flue gas pipeline 44 can heat the working fluid in the circulation pipeline 61 through the waste heat exchanger 5. The working fluid discharged from the waste heat exchanger 5 and introduced into the circulation pipeline 61 is then introduced into the natural gas performance heater 6 to heat the natural gas in the gas supply pipeline 45. That is, 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 outlets of the burners of the primary heating furnace 4 and the secondary heating furnace 8 to heat the temperature of the inlet natural gas entering the burners of the primary heating furnace 4 and the secondary heating furnace 8, thereby improving energy utilization and reducing energy waste. For example, the working fluid in the circulation pipeline 61 is circulating water.

[0045] According to an embodiment of the present invention, the gas supply system for a heavy-duty gas turbine component test bench is provided with a primary heating furnace 4 and a secondary heating furnace 8, 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 requirements of the component test bench 10.

[0046] Therefore, the gas supply system for the heavy-duty gas turbine component test bench according to the present invention has the advantage of easily meeting the gas supply requirements of the component test bench 10.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to 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 includes a main air compressor and a main air booster compressor. The pressure of the low-pressure compressed air discharged from the outlet of the main air compressor is a first preset value, and the pressure of the medium-pressure compressed air discharged from the outlet of the main air booster compressor is a second preset value, wherein 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 compressor through a booster pipeline, and the outlet of the main air booster compressor is connected to the air source inlet of the component test bench through a second pipeline. The heating section includes a primary heating furnace and a secondary heating furnace. 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 air source inlet of the component test bench are connected in sequence. The outlet of the main air booster compressor, the third connecting pipeline, the primary heating furnace, the fourth connecting pipeline, the secondary heating furnace, the fourth pipeline, and the air source inlet of the component test bench are connected in sequence. A cooling section is connected to the third pipeline and can be used to reduce the temperature of the low-pressure compressed air in the third pipeline; the cooling section is connected to the fourth pipeline and can be used to reduce the temperature of the medium-pressure compressed air in the fourth pipeline. The cooling section includes a low-pressure cold air mixing pipe and a medium-pressure cold air mixing pipe. Both the low-pressure and medium-pressure cold air mixing pipes are equipped 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 pipe so that low-pressure compressed air in the first pipeline can be introduced into the third pipeline through the low-pressure cold air mixing pipe. The fourth pipeline and the second pipeline are connected through the medium-pressure cold air mixing pipe so that medium-pressure compressed air in the second pipeline can be introduced into the fourth pipeline through the medium-pressure cold air mixing pipe. Specifically, the flow rate of compressed air entering the component test bench is 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.

2. 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 Laval nozzles at one end adjacent to the component test bench.

3. 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 connected to 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 connected to the second exhaust tower through the second exhaust pipe.

4. 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. A heater is provided on the seventh pipeline, which is used to regulate the temperature of the cooling air in the seventh pipeline.

5. 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.

6. The gas supply system for a heavy-duty gas turbine component test bench according to any one of claims 1-5, 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 via flue gas pipelines.

7. The gas source system for a heavy-duty gas turbine component test bench according to claim 6, characterized in that, The gas supply pipe is equipped with a natural gas performance heater, which can heat the natural gas in the gas supply pipe.

8. The gas source system for a heavy-duty gas turbine component test bench according to claim 7, characterized in that, The natural gas performance heater can heat the natural gas in the gas supply pipe to a third preset value, which is greater than or equal to 100°C and less than or equal to 200°C.

9. 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. 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.

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