A gas turbine starting method, device, electronic equipment and storage medium

Abstract

This invention belongs to the field of gas turbine technology and provides a gas turbine start-up method, device, electronic equipment, and storage medium. The method includes: receiving a dispatch command, completing unit start-up preparation, starting the gas compressor, performing high-speed turning gear operation, continuously introducing coke oven gas through a calorific value enhancement device while the gas is in a flowing state in the pipeline, opening the vent valve at the end of the gas pipeline and the vent valve of the calorific value meter body, igniting the calorific value meter, and performing the gas turbine start-up operation after the gas calorific value stabilizes, thereby quickly starting the gas turbine. This invention solves the problem of excessively long start-up waiting time for gas turbines in a static state in the prior art, shortening the gas turbine start-up time by 4-5 hours and increasing power generation.

Description

Technical Field

[0001] This invention relates to the field of gas turbine technology, and in particular to a gas turbine starting method, apparatus, electronic equipment, and storage medium. Background Technology

[0002] A gas turbine is an internal combustion power machine that uses a continuously flowing gas as a working fluid to drive an impeller to rotate at high speed, converting the energy of fuel into useful work. The working process of a gas turbine is as follows: the coal compressor continuously compresses the coal gas (from 10 kPa to 1 MPa), the compressed coal gas enters the combustion chamber, mixes with compressed air and burns to become high-temperature gas, which then flows into the gas turbine to expand and do work, driving the turbine impeller to rotate together with the generator rotor to do work.

[0003] The gas turbine must ensure that the calorific value of the gas is within the design range (usually 2950-3800 kJ / m³). 3 To prevent the calorific value of the gas from being too low or too high, a calorific value increasing / decreasing device is installed: when the calorific value is too low, the device mixes in coke oven gas with a higher calorific value to increase the calorific value; when the calorific value is too high, the device mixes in nitrogen gas with a lower calorific value to decrease the calorific value. Therefore, gas turbines are equipped with instruments for online real-time monitoring of the gas calorific value: a calorific value analyzer (referred to as a calorific value meter, which mainly relies on sampling from the inlet pipe of the coal compressor, with a pipe diameter of DN15, and continuously burning and monitoring the calorific value in the combustion chamber of the calorific value meter).

[0004] However, due to the long-term static operation of the gas turbine unit (time ≥ 24 hours), the gas in the pipeline does not flow for a long time, and nitrogen from the coal press shaft seal continuously leaks into the gas pipeline, which will cause the calorific value of the gas in the pipeline to be too low, making it impossible to successfully ignite the calorific value meter, thus causing a delay in start-up. The usual method is to introduce coke oven gas in the static state and open the vent valve on the calorific value meter to continuously vent it, and wait for 4-5 hours before igniting the calorific value meter, so as to carry out subsequent start-up operations. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a gas turbine starting method, device, electronic equipment and storage medium to solve the problem of excessively long start-up waiting time for gas turbines in a static state in the prior art.

[0006] To achieve the above and other related objectives, the present invention provides a gas turbine start-up method, the method comprising:

[0007] Receive dispatch instructions and complete unit start-up preparations;

[0008] Start the gas compressor and perform high-speed rotary cranking;

[0009] Coke oven gas is continuously introduced into the pipeline while the gas is in a flowing state through the calorific value enhancement device.

[0010] Open the vent valve at the end of the gas pipeline and the vent valve on the calorific value meter body;

[0011] Ignite the calorific value meter and, after the calorific value of the gas stabilizes, start the gas turbine.

[0012] Optionally, after receiving the dispatch instruction, all instruments of the gas turbine are checked for start-up conditions to ensure that the unit is ready for start-up.

[0013] Optionally, the rotation speed of the high-speed rotating cylinder is increased to 900 revolutions per minute, causing the gas to flow rapidly within the pipeline.

[0014] Optionally, the coke oven gas is purified by dust removal before being introduced into the coke oven, and the amount of coke oven gas introduced into the coke oven is 2,000 cubic meters per hour.

[0015] Optionally, the flow and release of gas are carried out simultaneously, and the unqualified gas is released through the release valve at the end of the gas pipeline and the release valve of the calorific value meter body.

[0016] Optionally, after continuously rotating the gas at high speed for at least 10 minutes, attempt to ignite the calorific value meter. After successful ignition, continuously observe the calorific value of the gas, keep it stable at 3300 kJ per cubic meter, and continue rotating the gas at high speed for 10 minutes.

[0017] Optionally, after the calorific value meter works successfully and the calorific value of the gas gradually stabilizes, the calorific value meter monitor releases a normal signal, and then the next start-up operation of the gas turbine is executed.

[0018] Based on the same inventive concept, the present invention also provides a gas turbine starting device, the device comprising:

[0019] The receiving module is used to receive dispatch instructions and complete the unit startup preparation;

[0020] The turning module is used to start the gas compressor and perform high-speed turning.

[0021] The heating module is used to continuously supply coke oven gas through a calorific value device when the gas is in a flowing state in the pipeline.

[0022] The venting module is used to open the venting valve at the end of the gas pipeline and the venting valve on the calorific value meter body;

[0023] The start-up module is used to ignite the calorific value meter and, after the calorific value of the gas stabilizes, to perform the gas turbine start-up operation.

[0024] Based on the same inventive concept, the present invention also provides an electronic device, the electronic device comprising:

[0025] One or more processors;

[0026] A storage device for storing one or more programs that, when executed by one or more processors, enable the electronic device to implement a gas turbine start-up method as described above.

[0027] Based on the same inventive concept, the present invention also provides a storage medium storing a computer program thereon, which, when executed by a computer processor, causes the computer to perform a gas turbine start-up method as described above.

[0028] As described above, the gas turbine starting method, apparatus, electronic device, and storage medium of the present invention have at least the following beneficial effects:

[0029] By receiving dispatch instructions, the unit prepares for startup, starts the gas compressor, performs high-speed turning, and continuously supplies coke oven gas through the calorific value enhancement device while the gas is in a flowing state in the pipeline. The gas pipeline end vent valve and the calorific value meter body vent valve are opened to ignite the calorific value meter. After the gas calorific value stabilizes, the gas turbine startup operation is performed to quickly start the gas turbine. This solves the problem of excessively long startup waiting time for gas turbines in a static state in the existing technology, shortens the gas turbine startup time by 4-5 hours, and increases power generation.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0032] Figure 1 This is a flowchart illustrating a gas turbine start-up method in an exemplary embodiment of this application.

[0033] Figure 2 This is a block diagram illustrating a gas turbine starting device in an exemplary embodiment of this application.

[0034] Figure 3 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown. Detailed Implementation

[0035] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0036] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show components relevant to the present invention and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. The structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0037] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0038] In one exemplary embodiment, this application provides an exemplary gas turbine start-up method, please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a flowchart illustrating an exemplary embodiment of a gas turbine start-up method, the method comprising at least steps S110 to S150, detailed below:

[0039] Step S110: Receive dispatch instructions and complete unit start-up preparation;

[0040] Step S120: Start the gas compressor and perform high-speed rotary cranking;

[0041] Step S130: Coke oven gas is continuously introduced into the pipeline while the gas is in a flowing state through the calorific value enhancement device.

[0042] Step S140: Open the gas pipeline end vent valve and the calorific value meter body vent valve;

[0043] Step S150: Ignite the calorific value meter and, after the calorific value of the gas stabilizes, start the gas turbine.

[0044] Steps S110 to S150 are described in detail below:

[0045] In step S110, a dispatching instruction is received and the unit start-up preparation is completed. After receiving the dispatching instruction, all instruments of the gas turbine are checked for start-up conditions to ensure that the unit start-up conditions are ready. The gas turbine unit includes a calorific value meter, a gas compressor, a gas turbine combustion chamber, a generator, a coal cooler, and a calorific value increasing / decreasing mixer. Under the default condition that the unit start-up conditions are ready, the monitor of the calorific value meter shows a normal signal.

[0046] In step S120, the gas compressor is started and high-speed turning is performed. The speed of the high-speed turning is increased to 900 revolutions per minute, and the gas in the pipeline flows rapidly. Since the gas turbine unit is in a long-term static operation state, the gas in the pipeline does not flow for a long time, and the nitrogen in the gas compressor shaft seal will continue to leak into the gas pipeline. At this time, the gas in the pipeline is an unqualified mixed gas, which cannot meet the gas calorific value requirements for gas turbine startup. By using the high-speed turning state of the gas compressor, the gas in the pipeline is made to flow rapidly.

[0047] In step S130, while the gas in the pipeline is in a flowing state, coke oven gas is continuously introduced through the calorific value enhancement device. Before introducing the coke oven gas, the coke oven gas is purified by dust removal. The coke oven gas can be purified by wet electrostatic precipitator. The amount of coke oven gas introduced is 2000 cubic meters per hour.

[0048] In step S140, the gas pipeline end vent valve and the calorimeter body vent valve are opened, and the gas flow and venting are carried out simultaneously. The unqualified gas is vented through the gas pipeline end vent valve and the calorimeter body vent valve. While the gas in the pipeline is in a flowing state, the unqualified mixed gas in the pipeline is vented at the same time as the coke oven gas is introduced. After the gas in the pipeline is qualified, the gas pipeline end vent valve and the calorimeter body vent valve are closed.

[0049] In step S150, the calorific value meter is ignited. After the calorific value of the gas stabilizes, the gas turbine is started. After continuous high-speed turning for at least 10 minutes, the calorific value meter is ignited again. After successful ignition, the calorific value of the gas is continuously observed and kept stable at 3300 kJ per cubic meter. High-speed turning continues for another 10 minutes. After the calorific value meter works successfully and the calorific value of the gas gradually stabilizes, the calorific value meter monitor releases a normal signal, and the next gas turbine start-up operation is performed. The calorific value of the gas can be adjusted by a calorific value increase / decrease mixer. When the calorific value of the gas is lower than the gas turbine start-up requirements, coking coal gas is introduced to increase the calorific value of the gas. When the calorific value of the gas is higher than the gas turbine start-up requirements, nitrogen is introduced to decrease the calorific value of the gas.

[0050] As can be seen, the technical solution provided in this embodiment completes the unit start-up preparation by receiving dispatch instructions, starting the gas compressor, and performing high-speed turning gear operation. With the gas in the pipeline in a flowing state, coke oven gas is continuously introduced through the calorific value enhancement device. The gas pipeline end vent valve and the calorific value meter body vent valve are opened to ignite the calorific value meter. After the gas calorific value stabilizes, the gas turbine start-up operation is performed. The high-speed turning gear drives the coke oven gas in the pipeline to flow, accelerates the release of coke oven gas in the pipeline, accelerates the increase of the gas calorific value in the pipeline, and quickly starts the gas turbine. This solves the problem of excessively long start-up waiting time for gas turbines in a static state in the prior art, shortens the gas turbine start-up time by 4-5 hours, and increases power generation.

[0051] Figure 2 This is a block diagram illustrating a gas turbine starting device according to an exemplary embodiment of this application. The device can be applied to… Figure 1 The implementation environment shown is not limited to this embodiment. This device can also be applied to other exemplary implementation environments and specifically configured in other devices. This embodiment does not limit the implementation environment to which the device is applicable.

[0052] like Figure 2 As shown, this exemplary gas turbine start-up device includes: a receiving module 201, a turning gear module 202, a heat enhancement module 203, a venting module 204, and a start-up module 205. Detailed descriptions of each component are as follows:

[0053] The receiving module 201 is configured to receive dispatch instructions and complete the unit start-up preparation;

[0054] The turning module 202 is configured to start the gas compressor and perform high-speed turning.

[0055] The heating module 203 is configured to continuously supply coke oven gas through the calorific value device when the gas in the pipeline is in a flowing state.

[0056] Venting module 204 is configured to open the venting valve at the end of the gas pipeline and the venting valve of the calorific value meter body;

[0057] The start-up module 205 is configured to ignite the calorific value meter and, after the calorific value of the gas stabilizes, perform the gas turbine start-up operation.

[0058] The gas turbine start-up device provided in this application first receives a dispatching command, completes the unit start-up preparation, starts the gas compressor, performs high-speed turning gear operation, and continuously introduces coke oven gas through the calorific value enhancement device while the gas in the pipeline is in a flowing state. The gas pipeline end vent valve and the calorific value meter body vent valve are opened to ignite the calorific value meter. After the gas calorific value stabilizes, the gas turbine start-up operation is performed to quickly start the gas turbine. This solves the problem of excessively long start-up waiting time for gas turbines in a static state in the prior art, shortens the gas turbine start-up time by 4-5 hours, and increases power generation.

[0059] It should be noted that the gas turbine starting device provided in the above embodiments and the gas turbine starting method provided in the above embodiments belong to the same concept. The specific operation methods of each module and unit have been described in detail in the method embodiments and will not be repeated here. In practical applications, the gas turbine starting device provided in the above embodiments can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. This is not a limitation here.

[0060] Embodiments of this application also provide an electronic device, including: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the gas turbine start-up method provided in the above embodiments.

[0061] Figure 3 A schematic diagram of a computer system suitable for implementing the embodiments of this application is shown. It should be noted that... Figure 3 The computer system 300 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0062] like Figure 3As shown, the computer system 300 includes a Central Processing Unit (CPU) 301, which can perform various appropriate actions and processes based on programs stored in Read-Only Memory (ROM) 302 or programs loaded from storage portion 308 into Random Access Memory (RAM) 303, such as performing the methods described in the above embodiments. The RAM 303 also stores various programs and data required for system operation. The CPU 301, ROM 302, and RAM 303 are interconnected via a bus 304. An Input / Output (I / O) interface 305 is also connected to the bus 304.

[0063] The following components are connected to I / O interface 305: an input section 306 including a keyboard, mouse, etc.; an output section 307 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive 310 is also connected to I / O interface 305 as needed. Removable media 311, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 310 as needed so that computer programs read from them can be installed into storage section 308 as needed.

[0064] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 309, and / or installed from removable medium 311. When the computer program is executed by central processing unit (CPU) 301, it performs various functions defined in the system of this application.

[0065] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0066] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0067] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0068] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a computer's processor, causes the computer to perform the gas turbine start-up method as described above. This computer-readable storage medium may be included in the electronic device described in the above embodiments, or it may exist independently and not incorporated into that electronic device.

[0069] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the gas turbine start-up method provided in the various embodiments described above.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method of starting a gas turbine, characterized by, The method includes: Receive dispatch instructions and complete unit start-up preparations; Start the gas compressor and perform high-speed rotary cranking; Coke oven gas is continuously introduced into the pipeline while the gas is in a flowing state through the calorific value enhancement device. Open the vent valve at the end of the gas pipeline and the vent valve on the calorific value meter body; Ignite the calorific value meter and, after the calorific value of the gas stabilizes, start the gas turbine. After continuously rotating the gas at high speed for at least 10 minutes, attempt to ignite the calorific value meter. Once the calorific value meter is successfully ignited, continue to observe the calorific value of the gas, keeping it stable at 3300 kJ per cubic meter, and continue rotating the gas at high speed for another 10 minutes.

2. A method of starting a gas turbine according to claim 1, characterised in that, The steps of receiving dispatch instructions and completing unit start-up preparations include: After receiving the dispatch instructions, all instruments of the gas turbine are checked for start-up conditions to ensure that the unit is ready for start-up.

3. A method of starting a gas turbine according to claim 1, wherein The steps of starting the gas compressor and performing high-speed turning gear operation include: The high-speed rotating wheel speed is increased to 900 revolutions per minute, and the gas in the pipeline flows rapidly.

4. A method of starting a gas turbine according to claim 1, wherein The step of continuously supplying coke oven gas through a calorific value enhancement device while the gas is in a flowing state within the pipeline includes: Before introducing coke oven gas, the coke oven gas is purified by dust removal, and the amount of coke oven gas introduced is 2000 cubic meters per hour.

5. A method of starting a gas turbine according to claim 1 wherein, The steps of opening the gas pipeline end vent valve and the calorific value meter body vent valve include: The flow and release of gas are carried out simultaneously. Unqualified gas is released through the release valve at the end of the gas pipeline and the release valve on the calorific value meter body.

6. A method of starting a gas turbine according to claim 1 wherein, The steps of igniting the calorific value meter and starting the gas turbine after the gas calorific value has stabilized also include: Once the calorific value meter is working successfully and the calorific value of the gas gradually stabilizes, the calorific value meter monitor will release a normal signal, and then the next start-up operation of the gas turbine will be executed.

7. A combustion engine starting device, characterized in that The device includes: The receiving module is used to receive dispatch instructions and complete the unit startup preparation; The turning module is used to start the gas compressor and perform high-speed turning. The heating module is used to continuously supply coke oven gas through a calorific value device when the gas is in a flowing state in the pipeline. The venting module is used to open the venting valve at the end of the gas pipeline and the venting valve on the calorific value meter body; The start-up module is used to ignite the calorific value meter. After the calorific value of the gas stabilizes, the gas turbine start-up operation is performed. Specifically, after continuous high-speed rotation for at least 10 minutes, the calorific value meter is attempted to be ignited. After the calorific value meter is successfully ignited, the calorific value of the gas is continuously observed and kept stable at 3300 kJ per cubic meter. High-speed rotation is then continued for another 10 minutes.

8. An electronic device, comprising: The electronic device includes: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement a gas turbine start-up method as described in any one of claims 1 to 6.

9. A storage medium, characterized by It stores a computer program that, when executed by the computer's processor, causes the computer to perform a gas turbine start-up method according to any one of claims 1 to 6.

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