Direct ignition method, apparatus and electronics for hydrogen-doped / pure hydrogen gas turbines

Abstract

The application provides a direct ignition method and device of a hydrogen-doped / pure hydrogen gas turbine, an electronic equipment and a storage medium. The method comprises the following steps: air is introduced into a premixing nozzle channel and a combustion chamber of the gas turbine, hydrogen-doped / pure hydrogen fuel is output from a corresponding duty nozzle of the gas turbine, the hydrogen-doped / pure hydrogen fuel is ignited to generate a duty flame at the duty nozzle, the hydrogen-doped / pure hydrogen fuel is output from the premixing nozzle, the hydrogen-doped / pure hydrogen fuel is mixed with air in the premixing nozzle channel and then enters the combustion chamber, and the mixture of the hydrogen-doped / pure hydrogen fuel and the air in the combustion chamber is ignited by the duty flame. Thus, by introducing air into the combustion chamber first, igniting the mixture introduced into the combustion chamber after the stable duty flame is formed in the combustion chamber by the duty flame, the backfire and deflagration of the hydrogen-doped / pure hydrogen fuel in the premixing nozzle channel can be effectively avoided, the ignition cost of the existing dual-fuel mode of the gas turbine is reduced, and the safety of the fuel ignition of the gas turbine is improved.

Description

Technical Field

[0001] This application relates to the field of gas turbine technology, and more particularly to a direct ignition method, apparatus, electronic equipment, and storage medium for a hydrogen-blended / pure hydrogen gas turbine. Background Technology

[0002] With the acceleration of global carbon neutrality, gas turbines capable of burning hydrogen are a key focus of research and development for various gas turbine manufacturers. Developing hydrogen-blended / pure hydrogen gas turbines can, on the one hand, resolve energy security issues, and on the other hand, alleviate the obstacles to the development of the gas turbine industry caused by natural gas shortages. It will play a key supporting role in "building a new power system with new energy as the main body".

[0003] Compared to traditional natural gas fuels, the addition of hydrogen significantly alters the physical and chemical properties of the fuel. Hydrogen broadens the combustible range of traditional hydrocarbon fuels, accelerates flame propagation, increases combustion speed in turbulent combustion, and lowers the minimum ignition energy, making it more prone to auto-ignition. The most significant impact of these changes on gas turbines is a greater susceptibility to backfire. For the currently mainstream dry-type, low-emission premixed combustion gas turbines, in addition to optimizing or modifying their premixed burners to reduce the risk of backfire, their ignition methods also need adjustment to avoid backfire and deflagration caused by auto-ignition in the premixed zone, as well as the more serious combustion safety problems arising from potential detonation.

[0004] To address the aforementioned issues, most gas turbine ignition systems in related technologies employ a dual-fuel system. During ignition, a traditional fuel system such as natural gas is used for initial ignition, followed by switching to a hydrogen-blended / pure hydrogen fuel mode. This approach aims to resolve safety issues such as backfire and deflagration during ignition.

[0005] However, dual-fuel systems using conventional natural gas ignition technology are relatively complex. When burning hydrogen-blended / pure hydrogen fuel, an additional pure natural gas circuit is required for ignition, along with matching switching control logic. Currently, according to publicly available information, there is no direct ignition technology for hydrogen-blended / pure hydrogen gas turbines, but this technology will play a crucial role in optimizing hydrogen-blended / pure hydrogen gas turbine systems and controlling costs. Summary of the Invention

[0006] This application proposes a direct ignition method, apparatus, electronic equipment, and storage medium for a hydrogen-blended / pure hydrogen gas turbine.

[0007] The first aspect of this application proposes a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine, which involves introducing air into the premixed nozzle channel and combustion chamber of the gas turbine; controlling the corresponding standby nozzle of the gas turbine to output hydrogen-blended / pure hydrogen fuel, and igniting the hydrogen-blended / pure hydrogen fuel output by the standby nozzle to generate a standby flame at the standby nozzle; controlling the premixed nozzle to output the hydrogen-blended / pure hydrogen fuel, which mixes with the air in the premixed nozzle channel and enters the combustion chamber, and the standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber.

[0008] In one embodiment of this application, controlling the duty nozzle corresponding to the gas turbine to output hydrogen-blended / pure hydrogen fuel and igniting the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to generate a duty flame at the duty nozzle includes: controlling the ignition device at the output of the duty nozzle to ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to obtain a stable initial duty flame; and controlling the initial duty flame to exchange heat with the air to generate an environmentally friendly low-temperature duty flame at the duty nozzle.

[0009] In one embodiment of this application, after controlling the premixed nozzle to output the hydrogen-blended / pure hydrogen fuel, which mixes with the air in the premixed nozzle channel and enters the combustion chamber, and is ignited by the standby flame, the method further includes: obtaining a preset fuel ratio for the output hydrogen-blended / pure hydrogen fuel in the fuel nozzle channel; determining, based on the preset fuel ratio, the minimum standby flame required for the output hydrogen-blended / pure hydrogen fuel to ignite at the preset fuel ratio; and adjusting the standby flame generated at the standby nozzle to the minimum standby flame based on the output fuel ratio output by the standby nozzle.

[0010] In one embodiment of this application, adjusting the duty flame generated at the duty nozzle to the minimum duty flame based on the output fuel ratio of the duty nozzle includes: obtaining the initial output fuel ratio of the hydrogen-blended / pure hydrogen fuel output by the duty nozzle; and, when the combustion of the hydrogen-blended / pure hydrogen fuel is stable, adjusting the initial output fuel ratio to the preset fuel ratio corresponding to the minimum duty flame, so as to adjust the duty flame generated at the duty nozzle to the minimum duty flame.

[0011] This application proposes a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The corresponding standby nozzle of the gas turbine is controlled to output hydrogen-blended / pure hydrogen fuel and ignite it, generating a standby flame at the standby nozzle. The premixed nozzle outputs hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel before entering the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. Therefore, by first introducing air into the combustion chamber and forming a stable standby flame, and then igniting the mixture subsequently introduced into the combustion chamber by the standby flame, backfire and deflagration of the hydrogen-blended / pure hydrogen fuel in the premixed nozzle channel can be effectively avoided. This reduces the ignition cost of existing dual-fuel gas turbine systems and improves the safety of gas turbine fuel ignition.

[0012] A second aspect of this application provides a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine. The device includes: an ignition module for controlling the corresponding standby nozzle of the gas turbine to output hydrogen-blended / pure hydrogen fuel and igniting the hydrogen-blended / pure hydrogen fuel output by the standby nozzle to generate a standby flame at the standby nozzle; and a control module for controlling the premixed nozzle to output the hydrogen-blended / pure hydrogen fuel, which, after being mixed with air in the premixed nozzle channel, enters the combustion chamber and is ignited by the standby flame.

[0013] In one embodiment of this application, the ignition module is specifically used to: control the ignition device at the output of the duty nozzle to ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to obtain a stable initial duty flame; and control the initial duty flame to exchange heat with the air to generate an environmentally friendly low-temperature duty flame at the duty nozzle.

[0014] In one embodiment of this application, the device further includes: an acquisition module for acquiring a preset fuel ratio of hydrogen-blended / pure hydrogen fuel output in the fuel nozzle channel; a determination module for determining, based on the preset fuel ratio, the minimum standby flame required for ignition of the output hydrogen-blended / pure hydrogen fuel at the preset fuel ratio; and a control module for controlling the standby flame generated at the standby nozzle to the minimum standby flame based on the output fuel ratio output from the standby nozzle.

[0015] In one embodiment of this application, the control module is specifically used to: obtain the initial output fuel ratio of the hydrogen-blended / pure hydrogen fuel output by the duty nozzle; and, when the hydrogen-blended / pure hydrogen fuel combustion is stable, adjust the initial output fuel ratio to the preset fuel ratio corresponding to the minimum duty flame, so as to adjust the duty flame generated at the duty nozzle to the minimum duty flame.

[0016] This application proposes a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The corresponding standby nozzle of the gas turbine is controlled to output hydrogen-blended / pure hydrogen fuel and ignite it, generating a standby flame at the standby nozzle. The premixed nozzle outputs hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel before entering the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. Therefore, by first introducing air into the combustion chamber and forming a stable standby flame, and then igniting the mixture subsequently introduced into the combustion chamber by the standby flame, backfire and deflagration of the hydrogen-blended / pure hydrogen fuel in the premixed nozzle channel can be effectively avoided. This reduces the ignition cost of existing dual-fuel gas turbine systems and improves the safety of gas turbine fuel ignition.

[0017] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the direct ignition method for a hydrogen-blended / pure hydrogen gas turbine as described in this application.

[0018] The fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, provides a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine according to the embodiments of this application.

[0019] Other effects of the above-mentioned alternative methods will be described below in conjunction with specific embodiments. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic flowchart of a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine provided in an embodiment of this application.

[0022] Figure 2 This is a schematic flowchart of another direct ignition method for a hydrogen-blended / pure hydrogen gas turbine provided in the embodiments of this application;

[0023] Figure 3 This is a schematic flowchart of another direct ignition method for a hydrogen-blended / pure hydrogen gas turbine provided in the embodiments of this application;

[0024] Figure 4 This is a schematic diagram of a hydrogen-blended / pure hydrogen gas turbine combustion chamber device provided in an embodiment of this application;

[0025] Figure 5This is a schematic diagram of the structure of a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine provided in an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the structure of a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine provided in an embodiment of this application;

[0027] Figure 7 This is a block diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0029] The following description, with reference to the accompanying drawings, describes a direct ignition method, apparatus, electronic equipment, and storage medium for a hydrogen-blended / pure hydrogen gas turbine according to embodiments of this application.

[0030] Figure 1 This is a schematic flowchart illustrating a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine provided in this embodiment. It should be noted that the execution entity of the direct ignition method for the hydrogen-blended / pure hydrogen gas turbine provided in this embodiment is a direct ignition device for the hydrogen-blended / pure hydrogen gas turbine. This direct ignition device can be implemented by software and / or hardware. In this embodiment, the direct ignition device for the hydrogen-blended / pure hydrogen gas turbine can be configured in an electronic device. The electronic device in this embodiment may include a server, and this embodiment does not specifically limit the electronic device.

[0031] like Figure 1 As shown, the direct ignition method for this hydrogen-blended / pure hydrogen gas turbine may include:

[0032] Step 101: Introduce air into the premixed nozzle passage and combustion chamber of the gas turbine.

[0033] In some embodiments, air can be continuously supplied to the premixed nozzle passage and combustion chamber of the gas turbine through the upstream compressor corresponding to the gas turbine, but this is not the only possibility.

[0034] Specifically, air can be supplied through the upstream compressor of the gas turbine, and then the air begins to fill the premixed nozzle channel and combustion chamber, thereby avoiding backfire in the premixed nozzle channel when the combustion chamber is ignited, ensuring the safety of the gas turbine.

[0035] Step 102: Control the corresponding duty nozzle of the gas turbine to output hydrogen-blended / pure hydrogen fuel, and ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to generate a duty flame at the duty nozzle.

[0036] In some embodiments, the duty nozzle may be installed downstream of the axial section of the premixed nozzle channel, but is not limited thereto.

[0037] The output of the duty nozzle is also connected to the combustion chamber to supply hydrogen-blended / pure hydrogen fuel to the combustion chamber.

[0038] In some embodiments, when the gas turbine's corresponding duty nozzle outputs hydrogen-blended / pure hydrogen fuel, ignition can be performed near the duty nozzle output port to form a stable diffusion combustion duty small flame, which can stably ignite the hydrogen-blended / pure hydrogen fuel output from the subsequent premixed nozzle channel, ensuring the stable operation of the gas turbine.

[0039] In some embodiments, the hydrogen-blended / pure hydrogen fuel output by the duty nozzle can be pure hydrogen fuel or hydrogen-blended fuel, for example, a mixture of hydrogen and methane, but is not limited thereto, and this embodiment does not specifically limit it.

[0040] Specifically, when the hydrogen-blended / pure hydrogen fuel output from the fuel nozzle is pure hydrogen fuel, the premixed nozzle channel contains pure hydrogen fuel; when the hydrogen-blended / pure hydrogen fuel output from the fuel nozzle is hydrogen-blended fuel, the premixed nozzle channel contains hydrogen-blended fuel.

[0041] Step 103: Control the premixed nozzle to output hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel and enters the combustion chamber. The mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber is ignited by the duty flame.

[0042] In some embodiments, when a stable standby flame is formed at the output port of the standby nozzle in the combustion chamber, the premixed nozzle can be controlled to output hydrogen-blended / pure hydrogen fuel to transport the hydrogen-blended / pure hydrogen fuel to the premixed nozzle channel and the combustion chamber, so as to obtain a mixture of hydrogen-blended / pure hydrogen fuel and air. When the mixture reaches the standby flame, the mixture in the combustion chamber is ignited by the standby flame, thereby igniting by the standby flame, avoiding backfire in the premixed nozzle channel, and realizing safe ignition of the gas turbine.

[0043] The fuel output by the premixed nozzle is the same as that output by the duty nozzle; it can be pure hydrogen fuel or hydrogen-blended fuel, but it is not limited to these two types.

[0044] This application proposes a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The corresponding standby nozzle of the gas turbine is controlled to output hydrogen-blended / pure hydrogen fuel and ignite it, generating a standby flame at the standby nozzle. The premixed nozzle outputs hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel before entering the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. Therefore, by first introducing air into the combustion chamber and forming a stable standby flame, and then igniting the mixture subsequently introduced into the combustion chamber by the standby flame, backfire and deflagration of the hydrogen-blended / pure hydrogen fuel in the premixed nozzle channel can be effectively avoided. This reduces the ignition cost of existing dual-fuel gas turbine systems and improves the safety of gas turbine fuel ignition.

[0045] To clearly understand this application, the following will be combined with... Figure 2 The process of the direct ignition method for hydrogen-blended / pure hydrogen gas turbines is described exemplarily, wherein this embodiment is a further refinement or extension of the above embodiment.

[0046] like Figure 2 As shown, the direct ignition method for this hydrogen-blended / pure hydrogen gas turbine may include:

[0047] Step 201: Introduce air into the premixed nozzle passage and combustion chamber of the gas turbine.

[0048] It should be noted that the specific implementation of step 201 can be found in the relevant description in the above embodiments.

[0049] Step 202: Control the ignition device at the output of the duty nozzle to ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to obtain a stable initial duty flame.

[0050] In some embodiments, the ignition device may be installed at the output port of the duty nozzle to ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to form a stable initial duty flame for igniting the mixture of hydrogen-blended / pure hydrogen fuel and air.

[0051] Step 203: Control the initial duty flame to exchange heat with the air in order to generate an environmentally friendly low-temperature duty flame at the duty nozzle.

[0052] In some embodiments, when the flame temperature is too high, the combustion of hydrogen-blended / pure hydrogen fuel will produce pollutants, such as nitrogen oxides (NOx). Therefore, in order to reduce the emissions of pollutants from the combustion of hydrogen-blended / pure hydrogen fuel, the initial duty flame can be controlled to exchange heat with the air to generate an environmentally friendly, low-temperature duty flame at the duty nozzle. In this way, the maximum temperature of the flame is reduced by the air, that is, the air plays a role in cooling the flame surface, reducing the emissions of pollutants and achieving environmentally friendly production of the gas turbine.

[0053] Step 204: Control the premixed nozzle to output hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel and enters the combustion chamber, and is ignited by the standby flame.

[0054] This application proposes a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The ignition device at the output of the standby nozzle ignites the hydrogen-blended / pure hydrogen fuel output from the standby nozzle to obtain a stable initial standby flame. The initial standby flame is controlled to exchange heat with the air to generate an environmentally friendly, low-temperature standby flame at the standby nozzle. The hydrogen-blended / pure hydrogen fuel output from the premixed nozzle is controlled, mixed with air in the premixed nozzle channel, and then enters the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. Therefore, in the direct ignition process of the hydrogen-blended / pure hydrogen gas turbine, by first introducing air into the combustion chamber and forming an environmentally friendly, low-temperature standby flame, and then igniting the mixture subsequently introduced into the combustion chamber by the standby flame, backfire and deflagration of the fuel in the premixed nozzle channel can be effectively avoided, while simultaneously achieving environmentally friendly operation of the gas turbine.

[0055] Figure 3 This is a schematic flowchart of another direct ignition method for a hydrogen-blended / pure hydrogen gas turbine provided in the embodiments of this application.

[0056] Step 301: Introduce air into the premixed nozzle passage and combustion chamber of the gas turbine.

[0057] Step 302: Control the corresponding duty nozzle of the gas turbine to output hydrogen-blended / pure hydrogen fuel, and ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to generate a duty flame at the duty nozzle.

[0058] Step 303: Control the premixed nozzle to output hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel and enters the combustion chamber, and is ignited by the standby flame.

[0059] It should be noted that the specific implementation methods of steps 201-203 can be found in the relevant descriptions in the above embodiments.

[0060] Step 304: Obtain the preset fuel ratio of hydrogen-blended / pure hydrogen fuel output in the fuel nozzle channel.

[0061] In some embodiments, the preset fuel ratio of hydrogen-blended / pure hydrogen fuel output in the fuel inlet channel can be set according to the actual business needs of the gas turbine. Usually, the preset fuel ratio corresponding to different actual business needs is fixed, so the corresponding preset fuel ratio can be fixed according to the actual business needs of the gas turbine.

[0062] Step 305: Determine the minimum standby flame required for ignition of hydrogen-blended / pure hydrogen fuel at the preset fuel ratio, based on the preset fuel ratio.

[0063] In some embodiments, based on the preset fuel ratio corresponding to the hydrogen-blended / pure hydrogen fuel, relevant technical personnel can determine the minimum standby flame required for ignition of the hydrogen-blended / pure hydrogen fuel at the preset fuel ratio, thereby achieving combustion pulsation while controlling nitrogen oxide (NOx) pollutants within the normal range, and realizing the safe operation of the gas turbine.

[0064] Step 306: Based on the output fuel ratio of the duty nozzle, adjust the duty flame generated at the duty nozzle to the minimum duty flame.

[0065] In some embodiments, one way to regulate the duty flame generated at the duty nozzle to the minimum duty flame based on the output fuel ratio of the duty nozzle is to obtain the initial output fuel ratio of hydrogen-blended / pure hydrogen fuel from the duty nozzle, and when the combustion of hydrogen-blended / pure hydrogen fuel is stable, regulate the initial output fuel ratio to a preset fuel ratio corresponding to the minimum duty flame, so as to regulate the duty flame generated at the duty nozzle to the minimum duty flame, thereby maximizing the reduction of pollutant emissions and ensuring the normal combustion operation of the gas turbine.

[0066] This application proposes a direct ignition method for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The corresponding standby nozzle of the gas turbine is controlled to output hydrogen-blended / pure hydrogen fuel, and the output hydrogen-blended / pure hydrogen fuel from the standby nozzle is ignited to generate a standby flame at the standby nozzle. The premixed nozzle outputs hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel and enters the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. A preset fuel ratio of hydrogen-blended / pure hydrogen fuel output from the fuel nozzle channel is then obtained. Based on the preset fuel ratio, the output fuel ratio is determined. The minimum standby flame required for ignition of hydrogen-blended / pure hydrogen fuel at a preset fuel ratio is controlled based on the output fuel ratio from the standby nozzle. Thus, during the direct ignition process of the hydrogen-blended / pure hydrogen gas turbine, by introducing air into the combustion chamber and forming a stable standby flame, the mixture subsequently introduced into the combustion chamber is ignited by the standby flame. By adjusting the size of the standby flame, backfire and deflagration of the hydrogen-blended / pure hydrogen fuel in the premixed nozzle channel are effectively avoided, while pollutant emissions are reduced, achieving safe and environmentally friendly operation of the gas turbine.

[0067] In summary, to better implement the direct ignition method for hydrogen-blended / pure hydrogen gas turbines, this method can be applied to applications such as... Figure 4 In the device, Figure 4 This is a schematic diagram of a combustion chamber device for a hydrogen-blended / pure hydrogen gas turbine, as shown below. Figure 4 As shown, the combustion chamber device of the hydrogen-blended / pure hydrogen gas turbine may include a standby nozzle, a premixed nozzle, a combustion chamber, a transition section, and an outlet.

[0068] Specifically, when the fuel is hydrogen-blended / pure hydrogen fuel, air is first introduced into the premixed nozzle channel and combustion chamber of the gas turbine. Then, hydrogen-blended / pure hydrogen fuel is output to the combustion chamber through a standby nozzle installed downstream of the axial section of the premixed nozzle channel and connected to the combustion chamber. The fuel is then ignited by an ignition device near the standby nozzle to generate a stable standby flame at the output of the standby nozzle, preventing backfire in the premixed nozzle channel. The premixed hydrogen-blended / pure hydrogen fuel output from the premixed nozzle channel connected to the combustion chamber is then mixed with air to obtain a mixture. This mixture is then ignited by the standby flame. The combustion gas after the premixed gas is ignited is then transferred to the outlet through a transition section, achieving safe ignition of the hydrogen-blended / pure hydrogen fuel in the gas turbine and ensuring the safe operation of the gas turbine.

[0069] Figure 5 This is a schematic diagram of the structure of a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine provided in an embodiment of this application.

[0070] like Figure 5 As shown, the direct ignition device 500 of the hydrogen-blended / pure hydrogen gas turbine includes: an ignition module 501 and a control module 502, wherein:

[0071] The ignition module 501 is used to control the output of hydrogen-blended / pure hydrogen fuel from the corresponding duty nozzle of the gas turbine and ignite the hydrogen-blended / pure hydrogen fuel output from the duty nozzle to generate a duty flame at the duty nozzle.

[0072] The control module 502 is used to control the output of hydrogen-blended / pure hydrogen fuel from the premixed nozzle. After being mixed with air in the premixed nozzle channel, the fuel enters the combustion chamber and is ignited by the standby flame.

[0073] This application proposes a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The corresponding standby nozzle of the gas turbine is controlled to output hydrogen-blended / pure hydrogen fuel and ignite it, generating a standby flame at the standby nozzle. The premixed nozzle outputs hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel before entering the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. Therefore, by first introducing air into the combustion chamber and forming a stable standby flame, and then igniting the mixture subsequently introduced into the combustion chamber by the standby flame, backfire and deflagration of the hydrogen-blended / pure hydrogen fuel in the premixed nozzle channel can be effectively avoided. This reduces the ignition cost of existing dual-fuel gas turbine systems and improves the safety of gas turbine fuel ignition.

[0074] In one embodiment of this application, the ignition module 501 is specifically used for:

[0075] The ignition device at the output of the control nozzle ignites the hydrogen-blended / pure hydrogen fuel output by the control nozzle to obtain a stable initial control flame.

[0076] The initial duty flame is controlled to exchange heat with the air in order to generate an environmentally friendly, low-temperature duty flame at the duty nozzle.

[0077] In one embodiment of this application, such as Figure 6 As shown, the device also includes an acquisition module 503, a determination module 504, and a control module 505, wherein:

[0078] The acquisition module 503 is used to acquire the preset fuel ratio of hydrogen-blended / pure hydrogen fuel output in the fuel nozzle channel.

[0079] The determination module 504 is used to determine the minimum standby flame required for ignition of hydrogen-blended / pure hydrogen fuel at the preset fuel ratio, based on the preset fuel ratio.

[0080] The control module 505 is used to control the duty flame generated at the duty nozzle to the minimum duty flame based on the output fuel ratio of the duty nozzle.

[0081] In one embodiment of this application, such as Figure 6 As shown, the control module 505 is specifically used for:

[0082] Obtain the initial output fuel ratio of hydrogen-blended / pure hydrogen fuel from the on-duty nozzle.

[0083] Under stable combustion conditions of hydrogen-blended / pure hydrogen fuel, the initial output fuel ratio is adjusted to the preset fuel ratio corresponding to the minimum duty flame, so as to adjust the duty flame generated at the duty nozzle to the minimum duty flame.

[0084] This application proposes a direct ignition device for a hydrogen-blended / pure hydrogen gas turbine. Air is introduced into the premixed nozzle channel and combustion chamber of the gas turbine. The corresponding standby nozzle of the gas turbine is controlled to output hydrogen-blended / pure hydrogen fuel and ignite it, generating a standby flame at the standby nozzle. The premixed nozzle outputs hydrogen-blended / pure hydrogen fuel, which mixes with air in the premixed nozzle channel before entering the combustion chamber. The standby flame ignites the mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber. Therefore, by first introducing air into the combustion chamber and forming a stable standby flame, and then igniting the mixture subsequently introduced into the combustion chamber by the standby flame, backfire and deflagration of the hydrogen-blended / pure hydrogen fuel in the premixed nozzle channel can be effectively avoided. This reduces the ignition cost of existing dual-fuel gas turbine systems and improves the safety of gas turbine fuel ignition.

[0085] like Figure 7 The diagram shown is a block diagram of an electronic device according to an embodiment of this application.

[0086] like Figure 7 As shown, the electronic device includes:

[0087] The memory 701, the processor 702, and computer instructions stored in the memory 701 and executable on the processor 702.

[0088] When processor 702 executes instructions, it implements the direct ignition method for hydrogen-blended / pure hydrogen gas turbines provided in the above embodiments.

[0089] Furthermore, electronic devices also include:

[0090] Communication interface 703 is used for communication between memory 701 and processor 702.

[0091] Memory 701 is used to store computer instructions that can be executed on processor 702.

[0092] The memory 701 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0093] The processor 702 is used to implement the direct ignition method for the hydrogen-blended / pure hydrogen gas turbine described in the above embodiments when executing the program.

[0094] If the memory 701, processor 702, and communication interface 703 are implemented independently, then the communication interface 703, memory 701, and processor 702 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 7 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0095] Optionally, in a specific implementation, if the memory 701, processor 702, and communication interface 703 are integrated on a single chip, then the memory 701, processor 702, and communication interface 703 can communicate with each other through an internal interface.

[0096] The processor 702 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0097] 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 application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0098] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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.

[0099] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A direct ignition method for a hydrogen-blended / pure hydrogen gas turbine, characterized in that, The method includes: Air is introduced into the premixed nozzle passage and combustion chamber of the gas turbine; Controlling the duty nozzle corresponding to the gas turbine to output hydrogen-blended / pure hydrogen fuel, and igniting the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to generate a duty flame at the duty nozzle, includes: controlling the ignition device at the output of the duty nozzle to ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to obtain a stable initial duty flame; controlling the initial duty flame to exchange heat with the air to generate a duty flame at the duty nozzle. The premixed nozzle is controlled to output the hydrogen-blended / pure hydrogen fuel, which is mixed with the air in the premixed nozzle channel and then enters the combustion chamber. The mixture of hydrogen-blended / pure hydrogen fuel and air in the combustion chamber is ignited by the standby flame. Also includes: Obtain the preset fuel ratio of hydrogen-blended / pure hydrogen fuel output within the fuel nozzle channel; Based on the preset fuel ratio, the minimum standby flame required for the output hydrogen-blended / pure hydrogen fuel to ignite at the preset fuel ratio is determined; Obtain the initial output fuel ratio of the hydrogen-blended / pure hydrogen fuel from the duty nozzle; When the combustion of the hydrogen-blended / pure hydrogen fuel is stable, the initial output fuel ratio is adjusted to the preset fuel ratio corresponding to the minimum duty flame, so as to adjust the duty flame generated at the duty nozzle to the minimum duty flame.

2. A direct ignition device for a hydrogen-blended / pure hydrogen gas turbine, characterized in that, The device includes: The ignition module is used to control the duty nozzle corresponding to the gas turbine to output hydrogen-blended / pure hydrogen fuel and ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle to generate a duty flame at the duty nozzle. The control module is used to control the output of the hydrogen-blended / pure hydrogen fuel from the premixed nozzle, which is mixed with air in the premixed nozzle channel and then enters the combustion chamber, and is ignited by the standby flame. The ignition module is specifically used for: The ignition device at the output of the duty nozzle is controlled to ignite the hydrogen-blended / pure hydrogen fuel output by the duty nozzle in order to obtain a stable initial duty flame. The initial standby flame is controlled to exchange heat with the air in order to generate a standby flame at the standby nozzle; The device further includes: The acquisition module is used to acquire the preset fuel ratio of hydrogen-blended / pure hydrogen fuel output in the fuel nozzle channel; The determining module is used to determine, based on the preset fuel ratio, the minimum standby flame required for the output hydrogen-blended / pure hydrogen fuel to ignite at the preset fuel ratio; The control module is used to control the duty flame generated at the duty nozzle to the minimum duty flame based on the output fuel ratio of the duty nozzle. The control module is specifically used for: Obtain the initial output fuel ratio of the hydrogen-blended / pure hydrogen fuel from the duty nozzle; When the combustion of the hydrogen-blended / pure hydrogen fuel is stable, the initial output fuel ratio is adjusted to the preset fuel ratio corresponding to the minimum duty flame, so as to adjust the duty flame generated at the duty nozzle to the minimum duty flame.

3. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, when the processor executes the program, it implements the direct ignition method for a hydrogen-blended / pure hydrogen gas turbine as described in claim 1.

4. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the direct ignition method for a hydrogen-blended / pure hydrogen gas turbine as described in claim 1.

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