Combustion chamber for suppressing thermoacoustic oscillation and wavelength tube adjustment method for pure hydrogen gas turbine

Abstract

The embodiments of the present disclosure disclose a thermoacoustic oscillation suppression combustion chamber and a wavelength tube adjustment method for a pure hydrogen gas turbine. A specific implementation of the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine includes: a combustion chamber main body component, a control component and a thermoacoustic oscillation suppression component. The combustion chamber main body component includes a combustion chamber nozzle and a combustion chamber flame tube. The thermoacoustic oscillation suppression component includes at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component. Each wavelength tube adjustment component includes a wavelength tube and a transmission component, and each wavelength tube is arranged on the combustion chamber nozzle; each transmission component includes a transmission rod, a guide tube and a baffle; the temperature sensor component is arranged in each wavelength tube, and the pressure sensor component is arranged on the inner wall of the combustion chamber flame tube; the control component is in communication connection with the temperature sensor component and the pressure sensor component. This implementation can improve the effect of suppressing thermoacoustic oscillation and the stability of combustion in the combustion chamber.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of combustion chambers, and in particular to a thermoacoustic oscillation suppression combustion chamber and a wavelength tube adjustment method for a pure hydrogen gas turbine. Background Art

[0002] The combustion chamber is one of the important components of the gas turbine. Most gas turbine combustion chambers have thermoacoustic oscillation problems when working under lean combustion conditions. At present, the commonly used method to suppress the thermoacoustic oscillation of the combustion chamber is: a dynamic pressure sensor is used to obtain the main frequency of the sound pressure in the combustion chamber, and the control system drives the transmission device to adjust the piston position according to the main frequency of the sound pressure, and changes the effective length of the wavelength tube to suppress the thermoacoustic oscillation.

[0003] However, the inventors have found that when the above-mentioned method is used to suppress the thermoacoustic oscillations of the combustion chamber, the following technical problems often occur: a dynamic pressure sensor is used to obtain the main frequency of the sound pressure in the combustion chamber, and the control system monitors the main frequency at the wavelength tube. The main frequency at this position has a low fit with the overall thermoacoustic oscillation frequency of the combustion chamber, and the influence of the gas temperature on the main frequency is not taken into account when monitoring the main frequency, resulting in a low accuracy of the calculated sound velocity in the tube, which results in a poor effect of suppressing thermoacoustic oscillations, and further leads to low stability of combustion in the combustion chamber.

[0004] When adopting a technical solution to solve the technical problem 1 in the background technology, it is often accompanied by the following problems: hydrogen has strong reactivity, the combustion rate is significantly higher than that of hydrocarbon fuels, the high-frequency oscillation combustion frequency exceeds 2200Hz, and is distributed over a wider frequency band. How to determine the adjustment frequency of the wavelength tube to better suppress thermoacoustic oscillations. In response to these problems, the conventional solution is generally to pre-set the frequency type of wavelength tube adjustment to reduce the thermoacoustic oscillation phenomenon. However, the above solution has the following technical problem 2: when the gas turbine operating parameters or fuel components change, the thermoacoustic oscillation characteristics change accordingly. Different gas turbine operating parameters or fuel components use the same adjustment frequency, resulting in poor suppression of thermoacoustic oscillations, resulting in lower combustion stability in the combustion chamber.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure concept and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Summary of the invention

[0006] The content of this disclosure is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] Some embodiments of the present disclosure propose a thermoacoustic oscillation suppression combustion chamber and a wavelength tube adjustment method for a pure hydrogen gas turbine to solve the technical problems mentioned in the above background technology section.

[0008] In a first aspect, some embodiments of the present disclosure provide a thermoacoustic oscillation suppression combustion chamber for a pure hydrogen gas turbine, the thermoacoustic oscillation suppression combustion chamber for a pure hydrogen gas turbine comprising: a combustion chamber main body component, a control component and a thermoacoustic oscillation suppression component, the combustion chamber main body component comprising a combustion chamber nozzle and a combustion chamber flame tube, the thermoacoustic oscillation suppression component comprising at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component, each wavelength tube adjustment component comprising a wavelength tube and a transmission component, each wavelength tube included in the at least one wavelength tube adjustment component being arranged on the combustion chamber nozzle; each transmission component comprising a transmission rod, a guide cylinder and a baffle, one end of the guide cylinder being fixedly connected to the corresponding baffle, one end of the transmission rod being arranged in the corresponding guide cylinder and being transmission-connected to the corresponding guide cylinder, each baffle being movably arranged in the corresponding wavelength tube; the temperature sensor component being arranged in each of the wavelength tubes, the temperature sensor component being used to collect the temperature values ​​of each wavelength tube in each of the wavelength tubes, the pressure sensor component being arranged on the inner wall of the combustion chamber flame tube, the pressure sensor component being used to collect the flame tube pressure value inside the combustion chamber flame tube; the control component being communicatively connected to the temperature sensor component and the pressure sensor component.

[0009] Optionally, the combustion chamber main body assembly further includes a combustion chamber end cover, and each transmission assembly further includes a motor, each motor is arranged on the combustion chamber end cover, each motor is transmission-connected to the other end of the corresponding transmission rod, and the control assembly is communication-connected to each motor.

[0010] Optionally, an outer side surface of one end of the transmission rod is provided with an internal thread, and an inner side surface of the corresponding guide cylinder is provided with an external thread, and the transmission rod is connected to the corresponding guide cylinder through threaded transmission.

[0011] Optionally, the combustion chamber main body assembly further includes a combustion chamber casing, the pressure sensor assembly includes a pressure lead pipe and a pressure sensor, one end of the pressure lead pipe is arranged on the inner wall of the combustion chamber flame tube, and the other end is connected to the pressure sensor, the pressure sensor is arranged on the combustion chamber casing, and the pressure sensor is communicatively connected to the control assembly.

[0012] Optionally, each wavelength tube is provided with an air hole.

[0013] Optionally, the number of the wavelength tube adjustment components included in the at least one wavelength tube adjustment component is the number of the fuel hole areas, and the wavelength tubes included in the wavelength tube adjustment components are evenly distributed on the combustion chamber nozzle in a circular array.

[0014] Optionally, the at least one wavelength tube adjustment component includes a first-order wavelength tube adjustment component set and a second-order wavelength tube adjustment component set, the first-order wavelength tube adjustment component is a wavelength tube adjustment component for adjusting the first-order thermoacoustic oscillation frequency, the second-order wavelength tube adjustment component is a wavelength tube adjustment component for adjusting the second-order thermoacoustic oscillation frequency, and the sum of the number of each first-order wavelength tube adjustment component included in the first-order wavelength tube adjustment component set and the number of each second-order wavelength tube adjustment component included in the second-order wavelength tube adjustment component set is the number of the fuel hole areas.

[0015] Optionally, the above-mentioned thermoacoustic oscillation suppression component also includes various distance sensors, and each baffle is provided with a distance sensor, and the above-mentioned various distance sensors are communicatively connected with the above-mentioned control component.

[0016] In a second aspect, some embodiments of the present disclosure provide a wavelength tube adjustment method, which is applied to a thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine as described in any implementation of the first aspect, the method comprising: in response to the current time satisfying a preset time condition, collecting current temperature information of each wavelength tube corresponding to each wavelength tube identifier through the temperature sensor assembly, wherein each wavelength tube identifier corresponds to each wavelength tube included in the at least one wavelength tube adjustment assembly; collecting current pressure information of the flame tube through the pressure sensor assembly; determining each wavelength tube adjustment type corresponding to each wavelength tube identifier; for each wavelength tube identifier included in the wavelength tube identifier, performing the following steps: generating a gas average sound velocity according to the current temperature information of the wavelength tube; performing Fourier transform processing on the current pressure information of the flame tube according to the wavelength tube adjustment type corresponding to the wavelength tube identifier to obtain wavelength tube resonance frequency information; generating a wavelength tube length according to the gas average sound velocity and the wavelength tube resonance frequency information; generating a transmission rod movement distance corresponding to the wavelength tube identifier according to the wavelength tube length; and controlling an associated display device to display the generated transmission rod movement distances for a user to adjust each wavelength tube.

[0017] Optionally, each transmission assembly further includes a motor; and the method further includes: controlling each motor corresponding to each wavelength tube to perform a transmission rod moving operation according to the generated movement distances of each transmission rod.

[0018] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine of some embodiments of the present disclosure can improve the effect of suppressing thermoacoustic oscillations and the stability of combustion in the combustion chamber. Specifically, the reasons for the poor effect of suppressing thermoacoustic oscillations and the low stability of combustion in the combustion chamber are: a dynamic pressure sensor is used to obtain the main frequency of the sound pressure in the combustion chamber, and the control system monitors the main frequency at the wavelength tube, and the main frequency at this position has a low fit with the overall thermoacoustic oscillation frequency of the combustion chamber, and the influence of gas temperature on the main frequency is not taken into account when monitoring the main frequency, resulting in a low accuracy of the calculated sound velocity in the tube, which results in a poor effect of suppressing thermoacoustic oscillations, and further leads to a low stability of combustion in the combustion chamber. Based on this, the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine of some embodiments of the present disclosure includes: a combustion chamber main body component, a control component and a thermoacoustic oscillation suppression component, the above-mentioned combustion chamber main body component includes a combustion chamber nozzle and a combustion chamber flame tube, the above-mentioned thermoacoustic oscillation suppression component includes at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component, each wavelength tube adjustment component includes a wavelength tube and a transmission component, and each wavelength tube included in the above-mentioned at least one wavelength tube adjustment component is arranged on the above-mentioned combustion chamber nozzle; each transmission component includes a transmission rod, a guide cylinder and a baffle, one end of the guide cylinder is fixedly connected to the corresponding baffle, one end of the transmission rod is arranged in the corresponding guide cylinder, and is transmission-connected to the corresponding guide cylinder, and each baffle is movably arranged in the corresponding wavelength tube; the above-mentioned temperature sensor assembly is arranged in each of the above-mentioned wavelength tubes, and the above-mentioned temperature sensor assembly is used to collect the temperature values ​​of each wavelength tube in the above-mentioned each wavelength tube, the above-mentioned pressure sensor assembly is arranged on the inner wall of the above-mentioned combustion chamber flame tube, and the above-mentioned pressure sensor assembly is used to collect the flame tube pressure value inside the combustion chamber flame tube; the above-mentioned control assembly is communicatively connected with the above-mentioned temperature sensor assembly and the above-mentioned pressure sensor assembly. Because the temperature sensor assembly is provided in the combustion chamber for suppressing thermoacoustic oscillation to monitor the temperature in the wavelength tube in real time, and is used to calculate the sound velocity in the tube in real time, thereby improving the accuracy of the sound velocity in the tube, and further improving the effect of suppressing thermoacoustic oscillation. Also, because the pressure sensor assembly is used to monitor the pressure in the flame tube, the fit between the calculated main frequency and the overall thermoacoustic oscillation frequency of the combustion chamber is improved, and further the effect of suppressing thermoacoustic oscillation can be improved by adjusting the length of the wavelength tube, thereby improving the effect of suppressing thermoacoustic oscillation and the stability of combustion in the combustion chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0020] Figure 1is a schematic cross-sectional view of some embodiments of a thermoacoustic oscillation suppression combustion chamber for a pure hydrogen gas turbine according to the present disclosure;

[0021] Figure 2 is a cross-sectional schematic diagram of some embodiments of a wavelength tube adjustment assembly included in a thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to the present disclosure;

[0022] Figure 3 It is a schematic structural diagram of some embodiments of the transmission assembly included in the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine according to the present disclosure;

[0023] Figure 4 It is a schematic diagram of the structure of some embodiments of the wavelength tube adjustment method according to the present disclosure. DETAILED DESCRIPTION

[0024] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0025] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0026] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0027] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0028] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0029] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0030] Figure 1 Schematic cross-sectional view of some embodiments of a thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to the present disclosure. Figure 1It includes a combustion chamber nozzle 11, a combustion chamber flame tube 12, a combustion chamber end cover 13, a combustion chamber casing 14, a wavelength tube adjustment component 21, a temperature sensor component 22, a pressure sensor component 23 and a motor 1124.

[0031] Figure 2 It is a cross-sectional schematic diagram of some embodiments of a wavelength tube adjustment assembly included in a thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to the present disclosure. Figure 2 It includes a wavelength tube 211, a transmission rod 2121, a guide cylinder 2122, a baffle 2123 and an air hole 213.

[0032] Figure 3 It is a schematic structural diagram of some embodiments of the transmission assembly included in the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine according to the present disclosure. Figure 3 It includes a transmission rod 2121 , a guide cylinder 2122 , a baffle 2123 and a motor 2124 .

[0033] In some embodiments, the above-mentioned thermoacoustic oscillation suppression combustion chamber may include: a combustion chamber main body component 1, a control component and a thermoacoustic oscillation suppression component 2. The above-mentioned control component may be a microcontroller. The above-mentioned thermoacoustic oscillation suppression component 2 may be a component for suppressing the thermoacoustic oscillation of the combustion chamber. Figure 1 As shown, the combustion chamber main body component 1 may include a combustion chamber nozzle 11 and a combustion chamber flame tube 12. The combustion chamber nozzle 11 may be a nozzle for distributing fuel and combustion-supporting air and spraying them in a certain way for post-combustion. The combustion chamber flame tube 12 may be a flame tube of the combustion chamber. The thermoacoustic oscillation suppression component 2 may include but is not limited to at least one wavelength tube adjustment component 21, a temperature sensor component 22 and a pressure sensor component 23. The wavelength tube adjustment component 21 may be a component for adjusting the length of the wavelength tube 211. Each wavelength tube adjustment component 21 may include a wavelength tube 211 and a transmission component. The wavelength tube 211 may be a quarter-wavelength tube. The transmission component may be a component for adjusting the length of the wavelength tube 211 by transmission. Each wavelength tube 211 included in the at least one wavelength tube adjustment component 21 may be fixedly arranged on the combustion chamber nozzle 11. As an example, the wavelength tube 211 and the combustion chamber nozzle 11 may be manufactured together by three-dimensional printing.

[0034] In some embodiments, Figure 2 and Figure 3As shown, each transmission assembly may include a transmission rod 2121, a guide cylinder 2122 and a baffle 2123. The transmission rod 2121 may be a rod for transmission. The guide cylinder 2122 may be a cylinder for guiding the transmission direction of the transmission rod 2121. The baffle 2123 may be a plate for dividing the wavelength tube 211 into two cavities. One end of the guide cylinder 2122 may be fixedly connected to the corresponding baffle 2123 by welding. One end of the transmission rod 2121 may be arranged in the corresponding guide cylinder 2122 and be transmission-connected to the corresponding guide cylinder 2122. Each baffle 2123 may be movably arranged in the corresponding wavelength tube 211. The baffle 2123 and the wavelength tube 211 form a moving cavity and an effective cavity. The above-mentioned moving cavity may be a cavity where the transmission rod 2121 is located. The above-mentioned effective cavity may be a cavity for calculating the effective wavelength.

[0035] In some embodiments, the temperature sensor assembly 22 may be arranged at the end of each effective cavity. The end may be an end close to the flame tube. The temperature sensor assembly 22 may be an assembly for collecting the temperature in each wavelength tube 211. The temperature sensor assembly 22 may include at least one temperature sensor. The number of temperature sensors may not be limited. As an example, the number of temperature sensors may be the same as the number of wavelength tubes, and a temperature sensor may be arranged in each effective cavity. The temperature sensor assembly 22 may be used to collect each temperature value in each wavelength tube 211. The pressure sensor assembly 23 may be detachably arranged on the inner wall of the combustion chamber flame tube 12. The pressure sensor assembly 23 may be used to collect the pressure value inside the combustion chamber flame tube 12.

[0036] In some embodiments, the control component can be connected to the temperature sensor component 22 and the pressure sensor component 23 for communication. The communication connection method can be a wireless connection. It should be noted that the wireless connection method can include but is not limited to 3G / 4G connection, WiFi connection, Bluetooth connection, WiMAX connection, Zigbee connection, UWB (ultra wideband) connection, and other wireless connection methods currently known or to be developed in the future.

[0037] Optionally, the combustion chamber main body assembly 1 may further include a combustion chamber end cover 13. The combustion chamber end cover 13 may be a cover for mounting and supporting the assembly and sealing the combustion chamber. Each transmission assembly may further include a motor 1124. Each motor 1124 may be detachably mounted on the combustion chamber end cover 13. As an example, each motor 1124 may be detachably mounted on the combustion chamber end cover 13 by means of screw connection. Figure 3As shown, each motor 1124 is drivingly connected to the other end of the corresponding transmission rod 2121. The control assembly can be connected to each motor 1124 in a communication manner. Thus, the length of the wavelength tube can be automatically adjusted by the motor during operation.

[0038] Optionally, the outer side surface of one end of the transmission rod 2121 may be provided with an internal thread, and the inner side surface of the corresponding guide cylinder 2122 may be provided with an external thread, and the transmission rod 2121 and the corresponding guide cylinder 2122 may be connected by threaded transmission. Thus, the transmission may have self-locking properties and improve transmission accuracy.

[0039] Optionally, the combustion chamber main body assembly 1 may further include a combustion chamber casing 14. The pressure sensor assembly 23 may include a pressure guide tube and a pressure sensor. The pressure guide tube may be used to guide the internal pressure value of the equipment and system to a pressure gauge or a pressure sensor. One end of the pressure guide tube may be arranged on the inner wall of the combustion chamber flame tube 12, and the other end may be connected to the pressure sensor. The pressure sensor may be detachably arranged on the combustion chamber casing 14. It should be noted that the height of the pressure guide tube on the inner wall of the combustion chamber flame tube 12 is the same as the height at which the pressure sensor is installed on the combustion chamber casing 14. The pressure sensor may be communicatively connected to the control assembly. Thus, the pressure sensor may be arranged on the outside of the combustion chamber flame tube via the pressure guide tube, thereby extending the service life of the pressure sensor.

[0040] Alternatively, if Figure 2 As shown, each wavelength tube 211 may be provided with an air hole 213. The air hole 213 may be a hole for air to enter the corresponding wavelength tube 211. The shape and size of the air hole 213 are not limited. Thus, flames can be prevented from entering the wavelength tube.

[0041] Optionally, the number of the wavelength tube adjustment components 21 included in the at least one wavelength tube adjustment component 21 may be the number of fuel hole areas. The number of fuel hole areas may be the number of fuel hole areas divided by the combustion chamber nozzle 11. The fuel hole area may be an area where micro-mixing tubes for micro-mixing combustion are distributed. The wavelength tubes 211 included in the wavelength tube adjustment components 21 may be evenly distributed in a circular array on the combustion chamber nozzle 11. As an example, the combustion chamber nozzle 11 is evenly divided into 5 sector-shaped fuel hole areas, the number of the wavelength tube adjustment components 21 may be 5, and each sector-shaped fuel hole area corresponds to a wavelength tube 211. In this way, the uniformity of suppressing thermoacoustic oscillations can be improved.

[0042] Optionally, the at least one wavelength tube adjustment component 21 may include a first-order wavelength tube adjustment component set and a second-order wavelength tube adjustment component set. The first-order wavelength tube adjustment component may be a wavelength tube adjustment component for adjusting the first-order thermoacoustic oscillation frequency. The first-order thermoacoustic oscillation frequency may be a first-order natural frequency when thermoacoustic oscillation occurs in the oscillating combustion chamber. The second-order wavelength tube adjustment component may be a wavelength tube adjustment component for adjusting the second-order thermoacoustic oscillation frequency. The second-order thermoacoustic oscillation frequency may be a second-order natural frequency when thermoacoustic oscillation occurs in the combustion chamber. The sum of the number of each first-order wavelength tube adjustment component included in the first-order wavelength tube adjustment component set and the number of each second-order wavelength tube adjustment component included in the second-order wavelength tube adjustment component set is the number of fuel hole areas. As an example, when the number of each wavelength tube adjustment component may be 5, the number of each first-order wavelength tube adjustment component may be 3, and the number of each second-order wavelength tube adjustment component may be 2. Thus, multiple frequencies of thermoacoustic oscillations may be suppressed simultaneously, thereby improving the effect of suppressing thermoacoustic oscillations.

[0043] Optionally, the thermoacoustic oscillation suppression assembly 2 may further include various distance sensors. A distance sensor may be detachably provided on the first side of each baffle 2123. The first side may be a side close to the combustion chamber flame tube 12. The various distance sensors are communicatively connected to the control assembly. Thus, the wavelength tube length may be monitored in real time.

[0044] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine of some embodiments of the present disclosure can improve the effect of suppressing thermoacoustic oscillations and the stability of combustion in the combustion chamber. Specifically, the reasons for the poor effect of suppressing thermoacoustic oscillations and the low stability of combustion in the combustion chamber are: a dynamic pressure sensor is used to obtain the main frequency of the sound pressure in the combustion chamber, and the control system monitors the main frequency at the wavelength tube, and the main frequency at this position has a low fit with the overall thermoacoustic oscillation frequency of the combustion chamber, and the influence of gas temperature on the main frequency is not taken into account when monitoring the main frequency, resulting in a low accuracy of the calculated sound velocity in the tube, which results in a poor effect of suppressing thermoacoustic oscillations, and further leads to a low stability of combustion in the combustion chamber. Based on this, the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine of some embodiments of the present disclosure includes: a combustion chamber main body component, a control component and a thermoacoustic oscillation suppression component, the above-mentioned combustion chamber main body component includes a combustion chamber nozzle and a combustion chamber flame tube, the above-mentioned thermoacoustic oscillation suppression component includes at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component, each wavelength tube adjustment component includes a wavelength tube and a transmission component, and each wavelength tube included in the above-mentioned at least one wavelength tube adjustment component is arranged on the above-mentioned combustion chamber nozzle; each transmission component includes a transmission rod, a guide cylinder and a baffle, one end of the guide cylinder is fixedly connected to the corresponding baffle, one end of the transmission rod is arranged in the corresponding guide cylinder, and is transmission-connected to the corresponding guide cylinder, and each baffle is movably arranged in the corresponding wavelength tube; the above-mentioned temperature sensor assembly is arranged in each of the above-mentioned wavelength tubes, and the above-mentioned temperature sensor assembly is used to collect the temperature values ​​of each wavelength tube in the above-mentioned each wavelength tube, the above-mentioned pressure sensor assembly is arranged on the inner wall of the above-mentioned combustion chamber flame tube, and the above-mentioned pressure sensor assembly is used to collect the flame tube pressure value inside the combustion chamber flame tube; the above-mentioned control assembly is communicatively connected with the above-mentioned temperature sensor assembly and the above-mentioned pressure sensor assembly. Because the temperature sensor assembly is provided in the combustion chamber for suppressing thermoacoustic oscillation to monitor the temperature in the wavelength tube in real time, the accuracy of the sound velocity in the tube is improved, and the effect of suppressing thermoacoustic oscillation is further improved. Also, because the pressure sensor assembly is used to monitor the pressure in the flame tube, the fit between the calculated main frequency and the overall thermoacoustic oscillation frequency of the combustion chamber is improved, and the effect of suppressing thermoacoustic oscillation can be improved by adjusting the length of the wavelength tube, thereby improving the effect of suppressing thermoacoustic oscillation and the stability of combustion in the combustion chamber.

[0045] Continue to refer Figure 4 , shows a process 400 of some embodiments of the wavelength tube adjustment method according to the present disclosure. The wavelength tube adjustment method is applied to Figure 1 The pure hydrogen gas turbine combustion chamber for suppressing thermal acoustic oscillations comprises the following steps:

[0046] Step 401, in response to the current time satisfying a preset time condition, current temperature information of each wavelength tube corresponding to each wavelength tube identifier is collected through a temperature sensor component.

[0047] In some embodiments, the execution subject of the wavelength tube adjustment method (for example, Figure 1 The thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine shown in the figure can respond to the current time meeting the preset time condition, and collect the current temperature information of each wavelength tube corresponding to each wavelength tube identifier through the above-mentioned temperature sensor component. Among them, the above-mentioned combustion chamber can include a combustion chamber main body component and a thermoacoustic oscillation suppression component, and the above-mentioned thermoacoustic oscillation suppression component includes at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component. Each wavelength tube adjustment component can include a wavelength tube and a transmission component. The above-mentioned preset time condition can be that the interval between the current time and the time when each wavelength tube was last adjusted is the preset interval time. The above-mentioned preset interval time can be a preset interval time. For example, the above-mentioned preset interval time can be 15 seconds. The above-mentioned each wavelength tube identifier corresponds to each wavelength tube included in the above-mentioned at least one wavelength tube adjustment component. Each wavelength tube identifier corresponds to a wavelength tube. The wavelength tube identifier can be a unique identifier of the corresponding wavelength tube. The wavelength tube current temperature information included in the current temperature information of each wavelength tube can correspond to the wavelength tube identifier included in each wavelength tube identifier. The wavelength tube current temperature information can represent the current temperature value of the corresponding wavelength tube. The wavelength tube current temperature information can include but is not limited to the wavelength tube current temperature value. The current temperature value of the wavelength tube may be the current temperature value of the corresponding wavelength tube.

[0048] Step 402, collecting the current pressure information of the flame tube through the pressure sensor assembly.

[0049] In some embodiments, the execution subject may collect the current pressure information of the flame tube through the pressure sensor assembly. The current pressure information of the flame tube may represent the current pressure inside the flame tube. The current pressure information of the flame tube may include but is not limited to the current pressure of the flame tube. The current pressure of the flame tube may be the current pressure inside the flame tube.

[0050] Step 403: determining the adjustment type of each wavelength tube corresponding to each wavelength tube identifier.

[0051] In some embodiments, the execution subject may determine the wavelength tube adjustment types corresponding to the wavelength tube identifiers. The wavelength tube identifiers in the wavelength tube identifiers may correspond to the wavelength tube adjustment types included in the wavelength tube adjustment types. The wavelength tube adjustment type may characterize the type of the frequency of the thermoacoustic oscillation to be adjusted. The wavelength tube adjustment type may be, but is not limited to, at least one of the following: first-order thermoacoustic oscillation frequency adjustment, second-order thermoacoustic oscillation frequency adjustment. The first-order thermoacoustic oscillation frequency adjustment may be a first-order frequency for suppressing thermoacoustic oscillations. The second-order thermoacoustic oscillation frequency adjustment may be a second-order frequency for suppressing thermoacoustic oscillations. In practice, the execution subject may obtain the wavelength tube adjustment types corresponding to the wavelength tube identifiers from the database by wired connection or wireless connection.

[0052] For the second technical problem in the background technology, the following solution can be adopted:

[0053] In some optional implementations of some embodiments, the execution subject may determine the wavelength tube adjustment types corresponding to the wavelength tube identifiers through the following steps:

[0054] The first step is to obtain the current gas turbine operating parameter information and the historical gas turbine operating parameter information set. The current gas turbine operating parameter information may be the gas turbine operating parameter information at the current time. The gas turbine operating parameter information may include but is not limited to the gas turbine operating power, operating air volume, and operating fuel volume. The gas turbine operating power may be the power under the gas turbine operating state. The operating air volume may be the air flow required when the gas turbine is in the operating state. The operating fuel volume may be the fuel flow required when the gas turbine is in the operating state. The fuel may be hydrogen. The historical gas turbine operating parameter information in the historical gas turbine operating parameter information set may be the gas turbine operating parameter information at the corresponding historical time point. In practice, the execution subject may obtain the current gas turbine operating parameter information and the historical gas turbine operating parameter information set from the database by wired connection or wireless connection.

[0055] In the second step, for each piece of historical gas turbine operating parameter information included in the above-mentioned historical gas turbine operating parameter information set, feature extraction processing is performed on the above-mentioned historical gas turbine operating parameter information to obtain a historical gas turbine operating feature vector. In practice, for each piece of historical gas turbine operating parameter information included in the above-mentioned historical gas turbine operating parameter information set, the above-mentioned execution subject may perform feature extraction processing on the above-mentioned historical gas turbine operating parameter information through a preset feature extraction algorithm to obtain a historical gas turbine operating feature vector. Among them, the above-mentioned preset feature extraction algorithm may be a pre-set algorithm for extracting features. The above-mentioned preset feature extraction algorithm may be, but is not limited to, one of the following: support vector machine, autoencoder, principal component analysis method.

[0056] The third step is to perform feature extraction processing on the above-mentioned current gas turbine operating parameter information to obtain the current gas turbine operating feature vector. In practice, the above-mentioned execution subject can perform feature extraction processing on the above-mentioned current gas turbine operating parameter information through the above-mentioned preset feature extraction algorithm to obtain the current gas turbine operating feature vector.

[0057] In the fourth step, for each obtained historical gas turbine operation feature vector, the similarity between the historical gas turbine operation feature vector and the current gas turbine operation feature vector is determined as the operation feature similarity, wherein the similarity may be cosine similarity.

[0058] In the fifth step, the operation feature similarity that satisfies the preset matching condition among the obtained operation feature similarities is determined as the target operation feature similarity. The preset matching condition may be that the operation feature similarity is the maximum value among the operation feature similarities.

[0059] In the sixth step, the historical gas turbine operating parameter information corresponding to the above operating characteristic similarity in the above historical gas turbine operating parameter information set is determined as the target historical gas turbine operating parameter information.

[0060] The seventh step is to obtain a historical wavelength tube adjustment type group corresponding to the above-mentioned target historical gas turbine operating parameter information. The historical wavelength tube adjustment type in the above-mentioned historical wavelength tube adjustment type group may be a wavelength tube adjustment type at a historical time point. The above-mentioned historical wavelength tube adjustment type group may be each wavelength tube adjustment type applied by the gas turbine under the operating state of the above-mentioned target historical gas turbine operating parameter information. In practice, the above-mentioned execution subject may obtain the historical wavelength tube adjustment type group corresponding to the above-mentioned target historical gas turbine operating parameter information from the database through a wired connection or a wireless connection.

[0061] In the eighth step, the number of the above-mentioned wavelength tube identifiers is determined as the current number of wavelength tubes.

[0062] In a ninth step, the number of historical wavelength tube adjustment types included in the historical wavelength tube adjustment type group is determined as the number of adjustment types.

[0063] Step 10: In response to determining that the number of adjustment types meets a preset number condition, any number of wavelength tube identifiers of the adjustment types in each wavelength tube identifier group is determined as a target wavelength tube identifier group. The preset number condition may be that the number of adjustment types is greater than 1.

[0064] In the eleventh step, the target wavelength tube identification group is sorted to obtain a target wavelength tube identification sequence. In practice, the execution subject may sort the target wavelength tube identification group by a preset sorting method to obtain a target wavelength tube identification sequence. The preset sorting method may be a pre-set sorting method. The preset sorting method may be, but is not limited to, one of the following: bubble sort, insertion sort, quick sort. It should be noted that the target wavelength tube identification group may be sorted in any order.

[0065] Step 12: sort the above historical wavelength tube adjustment type group to obtain a historical wavelength tube adjustment type sequence. In practice, the above execution subject can sort the above historical wavelength tube adjustment type group by the above preset sorting method to obtain a historical wavelength tube adjustment type sequence. It should be noted that the above historical wavelength tube adjustment type group can be sorted in any order.

[0066] In step 13, for each target wavelength tube identifier included in the target wavelength tube identifier sequence, the historical wavelength tube adjustment type corresponding to the target wavelength tube identifier in the historical wavelength tube adjustment type sequence is determined as the wavelength tube adjustment type corresponding to the target wavelength tube identifier. The historical wavelength tube adjustment type corresponding to the target wavelength tube identifier may be: the serial number corresponding to the historical wavelength tube adjustment type is the same as the serial number corresponding to the target wavelength tube identifier.

[0067] In the fourteenth step, each wavelength tube identifier corresponding to the target wavelength tube identifier group is deleted from the wavelength tube identifiers to obtain a remaining wavelength tube identifier group.

[0068] In step 15, for each remaining wavelength tube identifier in the remaining wavelength tube identifier group, any historical wavelength tube adjustment type in the historical wavelength tube adjustment type group is determined as the wavelength tube adjustment type of the remaining wavelength tube identifier.

[0069] The above technical solution and its related contents, as an inventive point of the embodiment of the present disclosure, solve the second technical problem mentioned in the background technology: "When the gas turbine operating parameters or fuel components change, the thermoacoustic oscillation characteristics change accordingly. Different gas turbine operating parameters or fuel components use the same adjustment frequency, resulting in poor effect of suppressing thermoacoustic oscillation, thereby causing low stability of combustion in the combustion chamber. If the above factors are solved, the effect of improving the stability of combustion gas can be achieved. In order to achieve this effect, the combustion chamber flame tube manufacturing method disclosed in the present invention, when determining the adjustment type of each wavelength tube corresponding to each wavelength tube identifier, matches the historical operating data closest to the current operating condition from the historical operating data, and then determines the adjustment type of each wavelength tube corresponding to each wavelength tube identifier according to the adjustment type of each wavelength tube used by the closest historical operating data, so that when the thermoacoustic oscillation characteristics change, the adjustment type of each wavelength tube also changes accordingly, thereby improving the effect of suppressing thermoacoustic oscillation, thereby improving the stability of combustion in the combustion chamber.

[0070] Step 404, for each wavelength tube identifier included in each wavelength tube identifier, perform the following steps:

[0071] Step 4041, generating the average sound velocity of the gas according to the current temperature information of the wavelength tube.

[0072] In some embodiments, the execution subject may generate an average sound velocity of the gas according to the current temperature information of the wavelength tube. In practice, the execution subject may input the current temperature value of the wavelength tube included in the current temperature information of the wavelength tube as the gas temperature value into the average sound velocity formula to obtain the average sound velocity of the gas.

[0073] Step 4042, according to the wavelength tube adjustment type corresponding to the wavelength tube identifier, Fourier transform processing is performed on the current pressure information of the flame tube to obtain the wavelength tube resonance frequency information.

[0074] In some embodiments, the execution subject may perform Fourier transform processing on the current pressure information of the flame tube according to the wavelength tube adjustment type corresponding to the wavelength tube identification, and obtain the wavelength tube resonance frequency information. Wherein, the wavelength tube resonance frequency information may characterize the resonance frequency of the wavelength tube. In practice, first, the execution subject may perform Fourier transform processing on the current pressure information of the flame tube through the preset dynamic pressure acquisition software, and obtain the first-order frequency and the second-order frequency. Wherein, the preset dynamic pressure acquisition software may be a pre-set software for collecting and analyzing pressure signals. For example, the preset dynamic pressure acquisition software may be DSDAS (Dynamic Signal Data Acquisition System). Then, in response to determining that the wavelength tube adjustment type corresponding to the wavelength tube identification is the first-order thermoacoustic oscillation frequency adjustment, the first-order frequency is determined as the wavelength tube resonance frequency information. Finally, in response to determining that the wavelength tube adjustment type corresponding to the wavelength tube identification is the second-order thermoacoustic oscillation frequency adjustment, the second-order frequency is determined as the wavelength tube resonance frequency information.

[0075] Step 4043, generating the wavelength tube length according to the average sound velocity of the gas and the wavelength tube resonance frequency information.

[0076] In some embodiments, the execution subject may generate the wavelength tube length according to the gas average sound velocity and the wavelength tube resonant frequency information. In practice, the execution subject may input the gas average sound velocity and the wavelength tube resonant frequency information into a preset wavelength tube length formula to obtain the wavelength tube length. The preset wavelength tube length formula may be expressed by the following formula:

[0077]

[0078] Wherein, L may represent the wavelength tube length. n may be 1, representing a quarter wavelength mode. f may represent the above-mentioned wavelength tube resonant frequency information. The average sound velocity of the above gas can be expressed.

[0079] Step 4044: Generate a moving distance of the transmission rod corresponding to the wavelength tube identifier according to the wavelength tube length.

[0080] In some embodiments, the execution entity may generate a transmission rod moving distance corresponding to the wavelength tube identifier according to the wavelength tube length. The transmission rod moving distance may be a distance that the transmission rod needs to move. It should be noted that the transmission rod moving distance may be a positive value or a negative value. When the transmission rod moving distance is a positive value, the transmission rod needs to move toward a direction close to the flame tube, and when the transmission rod moving distance is a negative value, the transmission rod needs to move toward a direction away from the flame tube.

[0081] Optionally, the above-mentioned thermoacoustic oscillation suppression component also includes various distance sensors.

[0082] Optionally, the execution subject may further generate a moving distance of the transmission rod corresponding to the wavelength tube identifier according to the wavelength tube length through the following steps:

[0083] In the first step, the current wavelength tube length is collected by using the distance sensor corresponding to the wavelength tube identifier among the above-mentioned distance sensors.

[0084] In the second step, the difference between the current wavelength tube length and the wavelength tube length is determined as the moving distance of the transmission rod corresponding to the wavelength tube mark.

[0085] Step 405: Control the associated display device to display the generated moving distances of each transmission rod for the user to adjust each wavelength tube.

[0086] In some embodiments, the execution entity may control an associated display device to display the generated movement distances of each transmission rod for the user to adjust each wavelength tube.

[0087] Optionally, each transmission assembly may further include a motor.

[0088] Optionally, according to the generated transmission rod movement distances, the execution subject may also control the motors corresponding to the wavelength tubes to perform the transmission rod movement operation. The transmission rod movement operation may be an operation of moving an operating rod to adjust the length of the wavelength tube. In practice, for each transmission rod movement distance generated, the execution subject may control the motor corresponding to the transmission rod movement distance to perform the transmission rod movement operation to move the transmission rod by a distance corresponding to the transmission rod movement distance. The motor corresponding to the transmission rod movement distance may be a motor whose corresponding wavelength tube identifier in each motor is the same as the wavelength tube identifier corresponding to the transmission rod movement distance. As an example, if the transmission rod movement distance is 5 mm, the corresponding motor may be controlled to rotate forward to move the transmission rod 5 mm in the direction toward the flame tube. If the transmission rod movement distance is -5 mm, the corresponding motor may be controlled to rotate reversely to move the transmission rod 5 mm away from the flame tube.

[0089] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: the thermoacoustic oscillation suppression combustion chamber of the pure hydrogen gas turbine of some embodiments of the present disclosure can improve the effect of suppressing thermoacoustic oscillations and the stability of combustion in the combustion chamber. Specifically, the reasons for the poor effect of suppressing thermoacoustic oscillations and the low stability of combustion in the combustion chamber are: a dynamic pressure sensor is used to obtain the main frequency of the sound pressure in the combustion chamber, and the control system monitors the main frequency at the wavelength tube, and the main frequency at this position has a low fit with the overall thermoacoustic oscillation frequency of the combustion chamber, and the influence of gas temperature on the main frequency is not taken into account when monitoring the main frequency, resulting in a low accuracy of the calculated sound velocity in the tube, which results in a poor effect of suppressing thermoacoustic oscillations, and further leads to a low stability of combustion in the combustion chamber. Based on this, the wavelength tube adjustment method of some embodiments of the present disclosure is applied to the thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine, wherein the combustion chamber includes a combustion chamber main body component and a thermoacoustic oscillation suppression component, the thermoacoustic oscillation suppression component includes at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component, and each wavelength tube adjustment component includes a wavelength tube and a transmission component. First, in response to the current time meeting the preset time condition, the current temperature information of each wavelength tube corresponding to each wavelength tube identifier is collected through the temperature sensor component. Among them, the above-mentioned each wavelength tube identifier corresponds to each wavelength tube included in the above-mentioned at least one wavelength tube adjustment component. Thus, each temperature value in each wavelength tube at the current time can be obtained, which can be used to determine the gas sound velocity in each wavelength tube. Secondly, the current pressure information of the flame tube is collected through the pressure sensor component. Thus, the pressure in the flame tube at the current time can be obtained, which can be used to determine the adjustment frequency of the wavelength tube. Then, the adjustment type of each wavelength tube corresponding to the above-mentioned each wavelength tube identifier is determined. Thus, the adjustment type of each wavelength tube corresponding to each wavelength tube identifier under the current operating condition can be obtained, which can be used to improve the effect of suppressing thermoacoustic oscillation. Afterwards, for each wavelength tube identifier included in the above-mentioned wavelength tube identifiers, the following steps are performed: according to the current temperature information of the above-mentioned wavelength tube, the average sound velocity of the gas is generated; according to the wavelength tube adjustment type corresponding to the above-mentioned wavelength tube identifier, the current pressure information of the above-mentioned flame tube is Fourier transformed to obtain the wavelength tube resonance frequency information; according to the above-mentioned gas average sound velocity and the above-mentioned wavelength tube resonance frequency information, the wavelength tube length is generated; according to the above-mentioned wavelength tube length, the transmission rod movement distance corresponding to the above-mentioned wavelength tube identifier is generated. Thus, the average sound velocity of the gas can be calculated by the current temperature value to improve the accuracy of the average sound velocity of the gas, and the distance that each wavelength tube needs to move is obtained by the wavelength tube adjustment type corresponding to each wavelength tube, so that the wide-band thermoacoustic oscillation can be suppressed. Finally, the associated display device is controlled to display the generated movement distances of each transmission rod for the user to adjust each wavelength tube. Thus, the distance that each transmission rod needs to move can be displayed, so that the user can adjust each wavelength tube, thereby suppressing the thermoacoustic oscillation.Also, when adjusting the length of the wavelength tube, the average sound velocity of the gas is determined by real-time monitoring of the temperature to improve the accuracy of the average sound velocity of the gas, and each wavelength tube is assigned a wavelength tube adjustment type to suppress the wider bandwidth thermoacoustic oscillation, thereby improving the effect of suppressing the thermoacoustic oscillation, thereby improving the stability of combustion in the combustion chamber.

[0090] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0091] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A combustion chamber for suppressing thermoacoustic oscillation of a pure hydrogen gas turbine, wherein: The thermoacoustic oscillation suppression combustion chamber comprises: a combustion chamber main body component, a control component and a thermoacoustic oscillation suppression component. The combustion chamber main body component includes a combustion chamber nozzle and a combustion chamber flame tube, the thermoacoustic oscillation suppression component includes at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component, each wavelength tube adjustment component includes a wavelength tube and a transmission component, each wavelength tube included in the at least one wavelength tube adjustment component is arranged on the combustion chamber nozzle, and each wavelength tube included in the each wavelength tube adjustment component is uniformly distributed on the combustion chamber nozzle in a circular array, the at least one wavelength tube adjustment component includes a first-order wavelength tube adjustment component set and a second-order wavelength tube adjustment component set, the first-order wavelength tube adjustment component is a wavelength tube adjustment component for adjusting the first-order thermoacoustic oscillation frequency, the second-order wavelength tube adjustment component is a wavelength tube adjustment component for adjusting the second-order thermoacoustic oscillation frequency, and the sum of the number of each first-order wavelength tube adjustment component included in the first-order wavelength tube adjustment component set and the number of each second-order wavelength tube adjustment component included in the second-order wavelength tube adjustment component set is the number of fuel hole areas; Each transmission assembly includes a transmission rod, a guide cylinder and a baffle, one end of the guide cylinder is fixedly connected to the corresponding baffle, one end of the transmission rod is arranged in the corresponding guide cylinder and is transmission-connected to the corresponding guide cylinder, and each baffle is movably arranged in the corresponding wavelength tube; The temperature sensor assembly is arranged in each wavelength tube, and the temperature sensor assembly is used to collect the temperature value of each wavelength tube in each wavelength tube. The pressure sensor assembly is arranged on the inner wall of the flame tube of the combustion chamber, and the pressure sensor assembly is used to collect the flame tube pressure value inside the flame tube of the combustion chamber; The control component is communicatively connected with the temperature sensor component and the pressure sensor component.

2. The thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to claim 1, wherein: The combustion chamber main body component also includes a combustion chamber end cover, and each transmission component also includes a motor. Each motor is arranged on the combustion chamber end cover, and each motor is transmission-connected to the other end of the corresponding transmission rod. The control component is communication-connected to each motor.

3. The thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to claim 1, wherein: The outer side surface of one end of the transmission rod is provided with an internal thread, the inner side surface of the corresponding guide cylinder is provided with an external thread, and the transmission rod is connected with the corresponding guide cylinder through thread transmission.

4. The thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to claim 1, wherein: The combustion chamber main body component also includes a combustion chamber casing, and the pressure sensor component includes a pressure lead pipe and a pressure sensor. One end of the pressure lead pipe is arranged on the inner wall of the combustion chamber flame tube, and the other end is connected to the pressure sensor. The pressure sensor is arranged on the combustion chamber casing, and the pressure sensor is communicatively connected to the control component.

5. The thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to claim 4, wherein: Each wavelength tube is provided with an air hole.

6. The thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine according to claim 1, wherein: The thermoacoustic oscillation suppression component also includes various distance sensors. A distance sensor is disposed on each baffle, and the various distance sensors are communicatively connected with the control component.

7. A wavelength tube adjustment method, applied to the thermoacoustic oscillation suppression combustion chamber of a pure hydrogen gas turbine as claimed in any one of claims 1 to 6, wherein the thermoacoustic oscillation suppression combustion chamber comprises a combustion chamber main body component and a thermoacoustic oscillation suppression component, the thermoacoustic oscillation suppression component comprises at least one wavelength tube adjustment component, a temperature sensor component and a pressure sensor component, each wavelength tube adjustment component comprises a wavelength tube and a transmission component, the method comprising: In response to the current time satisfying the preset time condition, collecting current temperature information of each wavelength tube corresponding to each wavelength tube identifier through the temperature sensor component, wherein each wavelength tube identifier corresponds to each wavelength tube included in the at least one wavelength tube adjustment component; Collecting current pressure information of the flame tube through the pressure sensor assembly; Determine each wavelength tube adjustment type corresponding to each wavelength tube identifier, wherein the wavelength tube adjustment type represents the type of the frequency of the adjusted thermoacoustic oscillation. When determining each wavelength tube adjustment type corresponding to each wavelength tube identifier, first, historical operation data closest to the current operation condition is matched from historical operation data, and then, based on each wavelength tube adjustment type adopted by the closest historical operation data, each wavelength tube adjustment type corresponding to each wavelength tube identifier is determined; For each wavelength tube identifier included in the various wavelength tube identifiers, the following steps are performed: Generate an average sound velocity of the gas according to the current temperature information of the wavelength tube; According to the wavelength tube adjustment type corresponding to the wavelength tube identifier, Fourier transform processing is performed on the current pressure information of the flame tube to obtain the wavelength tube resonance frequency information; Generating a wavelength tube length according to the average sound velocity of the gas and the wavelength tube resonant frequency information, wherein generating a wavelength tube length according to the average sound velocity of the gas and the wavelength tube resonant frequency information comprises: The average sound velocity of the gas and the wavelength tube resonant frequency information are input into a preset wavelength tube length formula to obtain the wavelength tube length, wherein the preset wavelength tube length formula is expressed by the following formula: in, represents the wavelength tube length, is 1, indicating a quarter-wavelength mode, represents the wavelength tube resonant frequency information, represents the average sound velocity of the gas; According to the wavelength tube length, generating a transmission rod movement distance corresponding to the wavelength tube identifier; The associated display device is controlled to display the generated moving distances of the various transmission rods for the user to adjust the various wavelength tubes.

8. The method according to claim 7, wherein: Each transmission assembly also includes a motor; and the method further includes: According to the generated moving distances of the transmission rods, the motors corresponding to the wavelength tubes are controlled to perform the transmission rod moving operation.

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