A combustion simulation test device for a peak-shaving gas turbine unit

Abstract

The present invention belongs to the technical field of peak-shaving gas turbine units, and specifically relates to a combustion simulation test device for peak-shaving gas turbine units. In view of the deficiency that the current combustion simulation test of gas turbine units mainly burns natural gas, but does not test the mixed combustion of hydrogen and natural gas, the present invention adopts the following technical scheme: a combustion simulation test device for a peak-shaving gas turbine unit, comprising: an air system; a gas system; a combustion system; a flue gas recovery system; a flushing system; the air system sends air to the burner, and the gas system sends natural gas or hydrogen to the surge tank; when conducting a mixed combustion test of natural gas and hydrogen, the air system sends air to the surge tank, and the gas system sends a mixed natural gas and hydrogen to the surge tank. The beneficial effects of the present invention are: single hydrogen or natural gas and mixed combustion experiments can be carried out, the flue gas can be recovered and processed, and the system can be cleaned.

Description

Technical Field

[0001] The invention belongs to the technical field of peak-shaving gas turbine units, and in particular relates to a combustion simulation test device for a peak-shaving gas turbine unit. Background Art

[0002] Compared with traditional coal-fired power generation, gas-fired power generation has the advantages of high efficiency and fast response. The gas turbine is the core equipment in the gas-fired power generation system. Natural gas is used as the main fuel to drive the gas turbine power generation equipment to operate, and the generated electricity supplies the power needs of users. The gas turbine unit can adjust the production situation according to the market demand for electricity, and start in time to supplement the electricity when the market demand for electricity is large.

[0003] The combustion effect of gas turbines directly affects the power generation efficiency. With the national carbon neutrality goal, the combustion requirements are getting higher and higher.

[0004] Existing research on gas turbine combustion focuses on adjusting the combustion of natural gas. There are few test systems for hydrogen mixed fuel combustion, and there is a gap in research on hydrogen mixed fuel combustion. At the same time, for test devices that need to conduct separate natural gas combustion tests, separate hydrogen combustion tests, and hydrogen and natural gas mixed combustion tests, in order to ensure the reliability of the test results, the devices need to be cleaned in various test rooms, but the existing technology does not disclose how to clean them. In addition, existing research focuses on reducing carbon oxide emissions, but rarely involves whether the emission requirements of carbon neutrality are met. Summary of the invention

[0005] In view of the deficiency that current combustion simulation tests of gas turbine units mainly focus on the combustion of natural gas, but there are no tests on the mixed combustion of hydrogen and natural gas, the present invention provides a combustion simulation test device for a peak-shaving gas turbine unit, which conducts comprehensive experimental research on the combustion of hydrogen and natural gas fuels to improve combustion efficiency, reduce NOX emissions, and facilitate the realization of carbon neutrality goals.

[0006] To achieve the above object, the present invention adopts the following technical solution: a combustion simulation test device for a peak-shaving gas turbine unit, the combustion simulation test device for a peak-shaving gas turbine unit comprising:

[0007] an air system, the air system providing air for the test;

[0008] A fuel gas system, which provides natural gas and hydrogen for the test;

[0009] A combustion system, the combustion system is used for the separate combustion of natural gas or hydrogen and the mixed combustion of natural gas and hydrogen, the combustion system comprises a connected surge tank and a burner;

[0010] A flue gas recovery system, the flue gas recovery system is used to recover the flue gas generated by the test device;

[0011] A flushing system, the flushing system being used for flushing the burner and the flue gas recovery system;

[0012] When conducting a single natural gas or hydrogen combustion test, the air system supplies air to the burner, and the gas system supplies natural gas or hydrogen to the surge tank;

[0013] When conducting a natural gas and hydrogen mixed combustion test, the air system supplies air to the surge tank, and the fuel gas system supplies mixed natural gas and hydrogen to the surge tank.

[0014] The combustion simulation test device for a peak-shaving gas turbine unit of the present invention can carry out a hydrogen combustion test and a natural gas combustion test alone, can carry out a combustion test of a mixture of hydrogen and natural gas in different proportions, can recycle and process the flue gas, and can clean the system.

[0015] As an improvement, the air system comprises:

[0016] Compressed air tanks;

[0017] a first electric heater, used for heating the air in the compressed air tank;

[0018] a first compressor, connected to the compressed air tank;

[0019] A first air electric valve, connected to the first compressor, for controlling the air flow; and an air pipeline, connected to various components in the air system, including

[0020] an air combustion-supporting pipe, connecting the first air electric valve and the burner; and

[0021] An air combustion pipe is connected in parallel with the air combustion-supporting pipe and communicates with the first air electric valve and the burner.

[0022] As an improvement, the air system further comprises:

[0023] A first connecting valve is provided on the air combustion-supporting pipe;

[0024] A first temperature gauge is provided on the air combustion-supporting pipe;

[0025] A first air flow control valve is provided on the air combustion-supporting pipe;

[0026] A second connecting valve is provided on the air combustion pipe;

[0027] a second electric heater, used to continue heating the air in the air combustion tube;

[0028] A second temperature gauge is provided on the air combustion-supporting pipe;

[0029] A bypass valve connecting the air combustion-supporting pipe and the air combustion pipe;

[0030] A second air flow control valve is provided on the air combustion pipe;

[0031] The air atomizing nozzle is arranged on the air combustion tube.

[0032] As an improvement, the air system further includes an auxiliary air system, and the auxiliary air system includes:

[0033] Auxiliary air pipe; and connected by the auxiliary air pipe

[0034] Filter;

[0035] Second compressor;

[0036] The first electric valve;

[0037] Flow controller;

[0038] The third temperature gauge;

[0039] The first pressure reducing valve;

[0040] a third electric heater;

[0041] a third air flow control valve;

[0042] a fourth air flow control valve;

[0043] Wherein, the auxiliary air pipe is respectively connected with the pressure stabilizing tank and the burner through two auxiliary air pipes connected in parallel; the third air flow control valve and the fourth air flow control valve are respectively arranged on the two auxiliary air pipes.

[0044] As an improvement, the fuel gas system comprises a natural gas supply pipeline and a hydrogen supply pipeline, the natural gas supply pipeline and the hydrogen supply pipeline at least partially overlap, and the fuel gas system is connected to the pressure stabilizing tank and the burner respectively.

[0045] As an improvement, the gas system comprises:

[0046] Gas pipelines;

[0047] A hydrogen manual valve is provided on the gas pipeline;

[0048] A hydrogen tank connected to the hydrogen manual valve;

[0049] A natural gas manual valve, arranged on the gas pipeline;

[0050] A natural gas tank connected to the natural gas manual valve; and

[0051] The second electric valve;

[0052] Gas flow control valve;

[0053] Gas check valve;

[0054] Second pressure reducing valve;

[0055] Pressure gauge;

[0056] Heat exchangers;

[0057] Pressure relief valve;

[0058] Wherein, the heat exchanger is connected to the air system, and the pressure relief valve is arranged at the end of the gas system.

[0059] As an improvement, the gas pipeline includes a common pipeline, a first gas pipe connected to the pressure regulating tank, and a second gas pipe connected to the burner. The first gas pipe is provided with a first gas butterfly valve, and the second gas pipe is provided with a second gas butterfly valve.

[0060] As an improvement, the gas system further comprises:

[0061] A vapor-liquid separator is provided on the natural gas delivery pipeline and the hydrogen delivery pipeline;

[0062] A liquid solenoid valve connected to the vapor-liquid separator;

[0063] A gas recovery tank is connected to the liquid solenoid valve.

[0064] As an improvement, the combustion system further comprises:

[0065] A mixed gas pipe, connecting the pressure stabilizing tank and the burner;

[0066] A mixed gas flow control valve, arranged on the mixed gas pipe;

[0067] The fuel gas atomizing nozzle is arranged on the mixed gas pipe.

[0068] As an improvement, the flue gas recovery system comprises:

[0069] Fume recovery tank;

[0070] A flue gas recovery pipe, connecting the flue gas recovery tank and the burner;

[0071] A ball valve is provided on the flue gas recovery pipe;

[0072] Flue gas flow valve;

[0073] Mixing tank;

[0074] Flue gas analyzer;

[0075] Flue gas treatment box;

[0076] Muffler;

[0077] A recovery pipeline, connecting the burner and the mixing tank;

[0078] The steam trap is arranged on the recovery pipeline.

[0079] As an improvement, the flushing system comprises:

[0080] Water tank;

[0081] a first water pipe, connecting the water tank and the burner;

[0082] A first water flow regulating valve is provided on the first water pipe;

[0083] A second water pipe, connecting the water tank and the smoke recovery tank;

[0084] The second water volume regulating valve is arranged on the second water pipe.

[0085] The beneficial effects of the peak-shaving gas turbine unit combustion simulation test device of the present invention are: hydrogen combustion tests and natural gas combustion tests can be carried out separately, hydrogen and natural gas mixed combustion tests in different proportions can be carried out, flue gas can be recovered and processed, and the system can be cleaned; the test system conducts combustion simulation tests on existing gas turbines, fills the gaps in hydrogen combustion and hydrogen mixed combustion directions, and can analyze combustion efficiency and combustion temperature; the test system can also study the addition of air during the combustion process, filling the gap in combustion; the system can recycle flue gas to ensure a clean environment; the system can be cleaned to ensure that the system can be reused; the system studies hydrogen combustion of gas turbines under the existing carbon neutrality background, is innovative, can reduce carbon emissions, and achieve carbon neutrality. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] Figure 1 It is a structural block diagram of a combustion simulation test device for a peak-shaving gas turbine unit according to a first embodiment of the present invention.

[0087] In the figure, 0, hydrogen tank; 0-1, hydrogen manual valve; 1, natural gas tank; 2, natural gas manual valve; 3, pressure relief valve; 4, gas pipeline; 5, second electric valve; 6, gas-liquid separator; 7, liquid solenoid valve; 8, gas recovery tank; 9, heat exchanger; 10, gas flow control valve; 11, gas check valve; 12, second pressure reducing valve; 13, pressure gauge; 14, first gas pipe; 15, first gas butterfly valve; 16 second gas pipe; 17, second gas butterfly valve; 18, water tank; 19, flue gas analyzer; 20, flue gas treatment box; 21, silencer; 22, second water pipe; 23, second water flow regulating valve; 24, flue gas flow valve; 25, first water pipe; 26, steam trap; 27, first water flow regulating valve; 28, compressed air tank; 29, first electric heater; 30, air pipeline; 31, first Compressor; 32, first air electric valve; 33, first connecting valve; 34, second connecting valve; 35, third electric heater; 36, third air flow control valve; 37, fourth air flow control valve; 38, second thermometer; 39, first thermometer; 40, air combustion tube; 41, second electric heater; 42, air combustion tube; 43 pressure regulating tank; 44, mixed gas flow control valve; 45, gas atomizing nozzle; 46, flue gas recovery tank; 47, recovery pipeline; 48, second air flow control valve, 49, air atomizing nozzle; 50, first air flow control valve; 51, burner; 52, flue gas ball valve; 53, filter; 54, auxiliary air pipe; 55, compressor; 56, mixing tank; 57, first electric valve; 58, flow controller; 59, third thermometer; 60, first pressure reducing valve. DETAILED DESCRIPTION

[0088] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0089] See also Figure 1 , a peak-shaving gas turbine unit combustion simulation test device of the present invention, the peak-shaving gas turbine unit combustion simulation test device comprises:

[0090] an air system, the air system providing air for the test;

[0091] A fuel gas system, which provides natural gas and hydrogen for the test;

[0092] A combustion system, the combustion system is used for the separate combustion of natural gas or hydrogen and the mixed combustion of natural gas and hydrogen, the combustion system comprises a connected surge tank and a burner;

[0093] A flue gas recovery system, the flue gas recovery system is used to recover the flue gas generated by the test device;

[0094] A flushing system, the flushing system being used for flushing the burner and the flue gas recovery system;

[0095] When conducting a single natural gas or hydrogen combustion test, the air system supplies air to the burner, and the gas system supplies natural gas or hydrogen to the surge tank;

[0096] When conducting a natural gas and hydrogen mixed combustion test, the air system supplies air to the surge tank, and the fuel gas system supplies mixed natural gas and hydrogen to the surge tank.

[0097] The combustion simulation test device for a peak-shaving gas turbine unit of the present invention can carry out a hydrogen combustion test and a natural gas combustion test alone, can carry out a combustion test of a mixture of hydrogen and natural gas in different proportions, can recycle and process the flue gas, and can clean the system.

[0098] Embodiment 1

[0099] See also Figure 1 , a peak-shaving gas turbine unit combustion simulation test device according to a first embodiment of the present invention, the peak-shaving gas turbine unit combustion simulation test device comprising:

[0100] an air system, the air system providing air for the test;

[0101] A fuel gas system, which provides natural gas and hydrogen for the test;

[0102] A combustion system, the combustion system is used for the separate combustion of natural gas or hydrogen and the mixed combustion of natural gas and hydrogen, the combustion system comprises a pressure stabilizing tank 43 and a burner 51 which are connected;

[0103] A flue gas recovery system, the flue gas recovery system is used to recover the flue gas generated by the test device;

[0104] A flushing system, the flushing system is used to flush the burner 51 and the flue gas recovery system;

[0105] When conducting a single natural gas or hydrogen combustion test, the air system supplies air to the burner 51, and the gas system supplies natural gas or hydrogen to the surge tank 43;

[0106] When conducting a natural gas and hydrogen mixed combustion test, the air system supplies air to the surge tank 43 , and the fuel gas system supplies mixed natural gas and hydrogen to the surge tank 43 .

[0107] In this embodiment, the air system includes:

[0108] Compressed air tank 28;

[0109] A first electric heater 29, used for heating the air in the compressed air tank 28;

[0110] A first compressor 5531, connected to the compressed air tank 28;

[0111] The first air electric valve 32 is connected to the first compressor 5531 and is used to control the air flow; and the air duct 30 is connected to the various components in the air system, including

[0112] An air combustion-supporting pipe 40, connecting the first air electric valve 32 and the burner 51; and

[0113] The air combustion pipe 42 is connected in parallel with the air combustion-supporting pipe 40 , and communicates with the first air electric valve 32 and the burner 51 .

[0114] In this embodiment, the air system further includes:

[0115] A first connecting valve 33 is provided on the air combustion-supporting pipe 40;

[0116] A first temperature gauge 39 is provided on the air combustion-supporting tube 40;

[0117] A first air flow control valve 50 is provided on the air combustion-supporting pipe 40;

[0118] A second connecting valve 34 is provided on the air combustion pipe 42;

[0119] A second electric heater 41, used to continue heating the air in the air combustion tube 42;

[0120] A second temperature gauge 38 is provided on the air combustion-supporting tube 40;

[0121] A bypass valve, connecting the air combustion-supporting pipe 40 and the air combustion pipe 42;

[0122] A second air flow control valve 48 is provided on the air combustion pipe 42;

[0123] The air atomizing nozzle 49 is disposed on the air combustion pipe 42 .

[0124] In this embodiment, the air system further includes an auxiliary air system, and the auxiliary air system includes:

[0125] Auxiliary air pipe 54; and connected by the auxiliary air pipe 54

[0126] Filter 53;

[0127] A second compressor 55;

[0128] A first electric valve 57;

[0129] Flow controller 58;

[0130] The third temperature meter 59;

[0131] A first pressure reducing valve 60;

[0132] A third electric heater 35;

[0133] A third air flow control valve 36;

[0134] Fourth air flow control valve 37;

[0135] The auxiliary air pipe 54 is connected to the pressure stabilizing tank 43 and the burner 51 respectively through two auxiliary air pipes connected in parallel; the third air flow control valve 36 and the fourth air flow control valve 37 are respectively arranged on the two auxiliary air pipes.

[0136] In this embodiment, the gas system includes a natural gas supply pipeline and a hydrogen supply pipeline, the natural gas supply pipeline and the hydrogen supply pipeline at least partially overlap, and the gas system is connected to the pressure stabilizing tank 43 and the burner 51 respectively.

[0137] In this embodiment, the gas system includes:

[0138] Gas pipeline 4;

[0139] A hydrogen manual valve 0-1 is provided on the gas pipeline 4;

[0140] Hydrogen tank 0, connected to the hydrogen manual valve 0-1;

[0141] A natural gas manual valve 2, provided on the gas pipeline 4;

[0142] A natural gas tank 1 connected to the natural gas manual valve 2; and a second electric valve 5 arranged on the gas pipeline 4 in turn;

[0143] Gas flow control valve 10;

[0144] Gas check valve 11;

[0145] A second pressure reducing valve 12;

[0146] Pressure gauge 13;

[0147] Heat exchanger 9;

[0148] Pressure relief valve 3;

[0149] The heat exchanger 9 is connected to the air system, and the pressure relief valve 3 is arranged at the end of the gas system.

[0150] In this embodiment, the gas pipeline 4 includes a common pipeline, a first gas pipe 14 connected to the pressure regulating tank 43, and a second gas pipe 16 connected to the burner 51. The first gas pipe 14 is provided with a first gas butterfly valve 15, and the second gas pipe 16 is provided with a second gas butterfly valve 17.

[0151] In this embodiment, the gas system further includes:

[0152] A vapor-liquid separator is provided on the natural gas delivery pipeline and the hydrogen delivery pipeline;

[0153] A liquid solenoid valve 7, connected to the vapor-liquid separator;

[0154] The gas recovery tank 8 is connected to the liquid solenoid valve 7 .

[0155] In this embodiment, the combustion system further includes:

[0156] A mixed gas pipe, connecting the pressure stabilizing tank 43 and the burner 51;

[0157] A mixed gas flow control valve 44 is provided on the mixed gas pipe;

[0158] The fuel gas atomizing nozzle 45 is arranged on the mixed gas pipe.

[0159] In this embodiment, the flue gas recovery system includes:

[0160] Flue gas recovery tank 46;

[0161] A flue gas recovery pipe, connected to the flue gas recovery tank 46 and the burner 51;

[0162] A ball valve is provided on the flue gas recovery pipe;

[0163] Flue gas flow valve 24;

[0164] Mixing tank 56;

[0165] Flue gas analyzer 19;

[0166] Flue gas treatment box 20;

[0167] Muffler 21;

[0168] A recovery pipe 47, communicating with the burner 51 and the mixing tank 56;

[0169] The steam trap 26 is disposed on the recovery pipe 47 .

[0170] In this embodiment, the flushing system includes:

[0171] Water tank 18;

[0172] A first water pipe 25, connecting the water tank 18 and the burner 51;

[0173] A first water flow regulating valve 27 is provided on the first water pipe 25;

[0174] A second water pipe 22, connected to the water tank 18 and the smoke recovery tank 46;

[0175] The second water volume regulating valve 23 is disposed on the second water pipe 22 .

[0176] Diffusion combustion test is a test in which air and fuel are mixed and burned at the same time, which is mainly divided into hydrogen diffusion combustion test and natural gas diffusion combustion test.

[0177] The working process of the hydrogen combustion test in the first embodiment of the present invention is: open the hydrogen manual valve 0-1, open the second electric valve 5, the hydrogen in the hydrogen tank 0 flows through the pipeline, passes through the gas-liquid separator 6, and the liquid flows through the liquid solenoid valve 7 to enter the gas recovery tank 8 for recovery, and the hydrogen enters the heat exchanger 9 for heat exchange, and the flow is controlled by the gas flow control valve 10. The gas check valve 11 can control the flow to flow out in one direction, and the second pressure reducing valve 12 can reduce the pressure, open the first gas butterfly valve 15 to enter the gas pressure regulating tank 43 for pressure stabilization, when the pressure is stable, open the mixed gas flow control valve 44 and the gas atomizing nozzle 45 for atomization, and the atomized hydrogen enters the burner 51. At the same time, the air heated by the first electric heater 29 passes through the air pipeline 30, the first compressor 31, the first air electric valve 32, the second connecting valve 34, the air combustion pipe, the second thermometer 38, the second air flow control valve 48, and the air atomizing nozzle 49 and then enters the burner 51, and the hydrogen combustion test can be carried out. During the test, the second gas butterfly valve 17 can be opened to perform a gas supplement test. During the test, the first air flow control valve 50 can be opened to perform an air supplement test.

[0178] The working process of the natural gas combustion test in the first embodiment of the present invention is: open the natural gas manual valve 2, open the second electric valve 5, the natural gas in the natural gas tank 1 flows through the pipeline, passes through the gas-liquid separator 6, and the liquid flows through the liquid solenoid valve 7 to enter the gas recovery tank 8 for recovery, and the natural gas enters the heat exchanger 9 for heat exchange, and the flow is controlled by the gas flow control valve 10. The gas check valve 11 can control the flow to flow out in one direction, and the second pressure reducing valve 12 can reduce the pressure, open the first gas butterfly valve 15 to enter the gas pressure regulating tank 43 for pressure stabilization, when the pressure is stable, open the mixed gas flow control valve 44 and the gas atomizing nozzle for atomization, and the atomized hydrogen enters the burner 51. At the same time, the air heated by the first electric heater 29 passes through the air pipeline 30, the first compressor 31, the first air electric valve 32, the second connecting valve 34, the air combustion pipe, the second thermometer 38, the second air flow control valve 48, and the air atomizing nozzle 49 and then enters the burner 51, and the natural gas combustion test can be carried out. During the test, the second gas butterfly valve 17 can be opened to carry out the gas supplement test. During the test, the first air flow control valve 50 may be opened to perform an air replenishment test.

[0179] Conduct a premixed combustion test, that is, a mixed combustion test in which air and fuel are mixed and burned at the same time.

[0180] The working process of the mixed combustion test in the first embodiment of the present invention is as follows: open the hydrogen manual valve 0-1 and the natural gas manual valve 2, adjust the mixing ratio of hydrogen and natural gas, open the second electric valve 5, after the mixed gas passes through the gas-liquid separator 6, the liquid flows through the liquid solenoid valve 7 and enters the gas recovery tank 8 for recovery, the mixed gas enters the heat exchanger 9 for heat exchange, the flow is controlled by the gas flow control valve 10, the gas check valve 12 can control the flow to flow out in one direction, the second pressure reducing valve 12 can reduce the pressure, open the first gas butterfly valve 15 to enter the pressure regulating tank 43 for pressure stabilization, open the second compressor 55, the second compressor 55 extracts air, the air first passes through the filter 53 to filter impurities, then flows through the first electric valve 57, the flow is controlled by the flow controller 58, and after being heated by the electric heater, it enters the pressure regulating tank 43 through the third air flow control valve 36. After the air and the mixed gas are pressure-stabilized in the pressure regulating tank 43, open the mixed gas flow control valve 44 and the gas atomizing nozzle for atomization, and then the mixed combustion test can be carried out. During the test, the fourth air flow control valve 37 may be opened to perform an air replenishment test.

[0181] Since premixed combustion is prone to flashback and has a high combustion temperature, during the test, the fourth air flow control valve 37 can be opened to perform a test of supplementing air in the middle of the burner 51, and the first air flow control valve 50 can be opened to perform a test of supplementing air at the rear of the burner 51.

[0182] When conducting hydrogen or natural gas premixed combustion tests, only one of the fuel gases may be supplied.

[0183] The working process of flue gas recovery in the first embodiment of the present invention is: during the combustion process, the flue gas ball valve 52 is opened, the flue gas enters the flue gas recovery tank 46, the flue gas flow valve 24 is opened, the flue gas volume is adjusted, and after the flue gas enters the mixing tank 56, it flows through the flue gas analyzer 19 to analyze the combustion effect of different combustion tests. After the flue gas is treated by the flue gas treatment box 20, it is silenced and discharged by the muffler 21. The flue gas analyzer 19 can calculate carbon emissions. After the test, the hydrogen manual valve 0-1 and the natural gas manual valve 2 are closed, and the air continues to be purged (the air is not heated at this time), and the remaining flue gas is blown into the flue gas recovery tank 46, and the remaining flue gas is discharged. The air continues to be purged (the air is not heated at this time), and the burner 51 and the flue gas recovery tank 46 are air cooled.

[0184] The working process of flushing in the first embodiment of the present invention is: after the air purge is completed, the first water regulating valve 27 and the second water regulating valve 23 are opened, and water enters the burner 51 and the flue gas recovery tank 46 to flush the impurities generated by the combustion. The water is divided into two paths. The water in the burner 51 enters the mixing tank 56 through the drain valve 26, and the water in the flue gas recovery tank 46 enters the mixing tank 56 through the flue gas flow valve 24.

[0185] The beneficial effects of the peak-shaving gas turbine unit combustion simulation test device of embodiment 1 of the present invention are: hydrogen combustion tests and natural gas combustion tests can be carried out separately, and hydrogen and natural gas mixed combustion tests in different proportions can be carried out, which fills the gaps in the directions of hydrogen combustion and hydrogen mixed combustion, and can analyze the combustion efficiency and combustion temperature; the test system can also study the addition of air during the combustion process, filling the gap in combustion; the system can recycle flue gas to ensure a clean environment; the system can be cleaned to ensure that the system can be reused; the system studies hydrogen combustion of gas turbines under the existing carbon neutrality background, is innovative, can reduce carbon emissions, and achieve carbon neutrality.

[0186] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the above specific implementation. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A combustion simulation test device for a peak-shaving gas turbine unit, characterized in that: The peak-shaving gas turbine unit combustion simulation test device comprises: A combustion system, the combustion system being used for the separate combustion of natural gas or hydrogen and the mixed combustion of natural gas and hydrogen, the combustion system comprising a pressure stabilizing tank (43) and a burner (51) which are connected to each other; an air system, the air system being in communication with the surge tank (43) and the burner (51); a gas system, the gas system being in communication with the pressure-surge tank (43) and the burner (51); a flue gas recovery system, the flue gas recovery system being in communication with the burner (51); a flushing system, the flushing system being used for flushing the system in communication with the burner (51) and the flue gas recovery system; When conducting a single natural gas or hydrogen premixed combustion test, the air system supplies air to the surge tank (43), and the gas system supplies natural gas or hydrogen to the surge tank (43); When conducting a natural gas and hydrogen premixed combustion test, the air system supplies air to the surge tank (43), and the fuel gas system supplies mixed natural gas and hydrogen to the surge tank (43); When performing a single natural gas or hydrogen non-premixed combustion test, the air system supplies air to the burner (51), and the gas system supplies natural gas or hydrogen to the burner (51); When performing a natural gas and hydrogen mixed non-premixed combustion test, the air system supplies air to the burner (51), and the gas system supplies mixed natural gas and hydrogen to the burner (51); The air system comprises: Compressed air tank (28); a first electric heater (29), used for heating the air in the compressed air tank (28); A first compressor (31) connected to the compressed air tank (28); a first air electric valve (32) connected to the first compressor (31) for controlling the air flow rate; and an air pipeline (30) connected to various components in the air system, including an air combustion-supporting pipe (40) connecting the first air electric valve (32) and the burner (51); and An air combustion pipe (42) connected in parallel with the air combustion-supporting pipe (40) and communicating with the first air electric valve (32) and the burner (51); The air system further comprises: A first connecting valve (33) is provided on the air combustion-supporting pipe (40); A first temperature gauge (39) is arranged on the air combustion-supporting pipe (40); A first air flow control valve (50) is provided on the air combustion-supporting pipe (40); A second connecting valve (34) is provided on the air combustion pipe (42); a second electric heater (41), used to continue heating the air in the air combustion tube (42); A second temperature gauge (38) is disposed on the air combustion-supporting pipe (40); A bypass valve connecting the air combustion-supporting pipe (40) and the air combustion pipe (42); a second air flow control valve (48) disposed on the air combustion pipe (42); An air atomizing nozzle (49) is disposed on the air combustion tube (42); The air system also includes an auxiliary air system, and the auxiliary air system includes: Auxiliary air pipe (54); and connected via the auxiliary air pipe (54) Filter (53); A second compressor (55); A first electric valve (57); Flow controller (58); Third Temperature Table (59); A first pressure reducing valve (60); A third electric heater (35); A third air flow control valve (36); a fourth air flow control valve (37); The auxiliary air pipe (54) is respectively connected to the pressure stabilizing tank (43) and the burner (51) through two auxiliary air pipes connected in parallel; the third air flow control valve (36) and the fourth air flow control valve (37) are respectively arranged on the two auxiliary air pipes; When performing a premixed combustion test, the auxiliary air system supplements air to the burner (51) through the fourth air flow control valve (37); The flushing system comprises: Water tank (18); A first water pipe (25) connecting the water tank (18) and the burner (51); a first water flow regulating valve (27), arranged on the first water pipe (25); A second water pipe (22) connected to the water tank (18) and the smoke recovery tank (46); The second water volume regulating valve (23) is arranged on the second water pipe (22).

2. A combustion simulation test device for a peak-shaving gas turbine unit according to claim 1, characterized in that: The gas system comprises a natural gas supply pipeline and a hydrogen supply pipeline, the natural gas supply pipeline and the hydrogen supply pipeline at least partially overlap, and the gas system is connected to the pressure stabilizing tank (43) and the burner (51) respectively.

3. A combustion simulation test device for a peak-shaving gas turbine unit according to claim 2, characterized in that: The gas system comprises: Gas pipeline (4); A hydrogen manual valve (0-1) is arranged on the gas pipeline (4); A hydrogen tank (0), connected to the hydrogen manual valve (0-1); A natural gas manual valve (2) is arranged on the gas pipeline (4); A natural gas tank (1) connected to the natural gas manual valve (2); and A second electric valve (5); Gas flow control valve (10); Gas check valve (11); A second pressure reducing valve (12); Pressure gauge (13); Heat exchanger (9); Pressure relief valve (3); The heat exchanger (9) is connected to the air system, and the pressure relief valve (3) is arranged at the end of the gas system.

4. A combustion simulation test device for a peak-shaving gas turbine unit according to claim 3, characterized in that: The gas pipeline (4) comprises a common pipeline, a first gas pipe (14) connected to the pressure stabilizing tank (43), and a second gas pipe (16) connected to the burner (51); the first gas pipe (14) is provided with a first gas butterfly valve (15), and the second gas pipe (16) is provided with a second gas butterfly valve (17); the gas system further comprises: A vapor-liquid separator is provided on the natural gas delivery pipeline and the hydrogen delivery pipeline; A liquid solenoid valve (7), connected to the vapor-liquid separator; The gas recovery tank (8) is connected to the liquid solenoid valve (7).

5. The combustion simulation test device for a peak-shaving gas turbine unit according to claim 1, characterized in that: The combustion system further comprises: A mixed gas pipe, communicating the pressure stabilizing tank (43) and the burner (51); A mixed gas flow control valve (44) is provided on the mixed gas pipe; The mixed gas atomizing nozzle (45) is arranged on the mixed gas pipe.

6. A combustion simulation test device for a peak-shaving gas turbine unit according to claim 1, characterized in that: The flue gas recovery system comprises: Flue gas recovery tank (46); a flue gas recovery pipe, connected between the flue gas recovery tank (46) and the burner (51); A ball valve is provided on the flue gas recovery pipe; Flue gas flow valve (24); Mixing tank (56); Flue gas analyzer (19); Flue gas treatment box (20); Silencer (21); A recovery pipe (47) connected to the burner (51) and the mixing tank (56); The steam trap (26) is arranged on the recovery pipe (47).

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