Method and device for measuring flow of rectangular pipeline of gas turbine

Abstract

The invention provides a gas turbine rectangular pipeline flow measurement method and device, and the method comprises the steps: obtaining a plurality of measurement regions; classifying each measurement area according to the information of the flow velocity and the velocity gradient change and the position information, and determining a category label of each measurement area; for each measurement area, according to the area of the measurement area and the category label of the measurement area, determining flow measurement points which are arranged in the measurement area and do not exceed the number of the target measurement points, and arranging a total pressure tapping pipe and a static pressure tapping pipe or a total static pressure probe on the flow measurement points; determining the flow of each measurement area based on the total pressure and the static pressure collected by the total pressure tapping pipe and the static pressure tapping pipe or the total static pressure probe; and determining the total flow of the rectangular air inlet pipeline according to the sum of the flows of the measurement areas, thereby realizing comprehensive and accurate measurement of the flows of the measurement areas, and further determining the total flow of the rectangular air inlet pipeline of the gas turbine.

Description

Technical Field

[0001] This application relates to the technical field of gas turbines, and particularly to a method and device for measuring the flow rate of a rectangular duct of a gas turbine. Background Art

[0002] With the development of industry and the increasing demand for electricity, gas turbines have been widely used in the field of combined cycle power generation. The intake system of a gas turbine is an important part of the entire gas turbine equipment, and rectangular ducts are very common equipment. Therefore, in order to ensure the safe operation of the entire gas turbine equipment, it is necessary to judge the performance of the gas turbine. Among them, the intake flow rate of the gas turbine is an important indicator for judging the performance of the gas turbine. Therefore, how to measure the intake flow rate of the rectangular duct of the gas turbine is a technical problem that needs to be solved urgently at present. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems in the related art to some extent.

[0004] To this end, one object of this application is to propose a method for measuring the flow rate of a rectangular duct of a gas turbine, so as to comprehensively and accurately measure the flow rates in each measurement area, thereby determining the total flow rate of the rectangular intake duct of the gas turbine, and providing data support for judging the performance of the gas turbine.

[0005] The second object of this application is to propose a device for measuring the flow rate of a rectangular duct of a gas turbine.

[0006] The third object of this application is to propose an electronic device.

[0007] The fourth object of this application is to propose a computer-readable storage medium.

[0008] The fifth object of this application is to propose a computer program product.

[0009] To achieve the above object, an embodiment of the first aspect of the present application provides a method for measuring the flow rate of a rectangular pipeline of a gas turbine, including: obtaining a plurality of measurement regions obtained by dividing the rectangular cross-section of the rectangular intake pipeline of the gas turbine; wherein, each of the measurement regions contains information on the flow velocity and the change of the velocity gradient, as well as the position information of each measurement region in the rectangular cross-section; classifying each of the measurement regions according to the information on the flow velocity and the change of the velocity gradient and the position information, and determining the class label of each measurement region, wherein the class label is used to determine the number of flow measurement points arranged in the measurement region; for each of the measurement regions, determining the flow measurement points not exceeding the target number of measurement points arranged in the measurement region according to the area of the measurement region and the class label of the measurement region, and a total pressure tapping tube and a static pressure tapping tube or a total static pressure probe are provided on the flow measurement points; determining the flow rate of each measurement region based on the total pressure and the static pressure collected from the total pressure tapping tube and the static pressure tapping tube or the total static pressure probe provided in each measurement region; and determining the total flow rate of the rectangular intake pipeline according to the sum of the flow rates of each measurement region.

[0010] To achieve the above object, an embodiment of the second aspect of the present application provides a device for measuring the flow rate of a rectangular pipeline of a gas turbine, including: a first acquisition module, configured to obtain a plurality of measurement regions obtained by dividing the rectangular cross-section of the rectangular intake pipeline of the gas turbine; wherein, each of the measurement regions contains information on the flow velocity and the change of the velocity gradient, as well as the position information of each measurement region in the rectangular cross-section; a first determination module, configured to classify each of the measurement regions according to the information on the flow velocity and the change of the velocity gradient and the position information, and determine the class label of each measurement region, wherein the class label is used to determine the number of flow measurement points arranged in the measurement region; a second determination module, configured to, for each of the measurement regions, determine the flow measurement points not exceeding the target number of measurement points arranged in the measurement region according to the area of the measurement region and the class label of the measurement region, and a total pressure tapping tube and a static pressure tapping tube or a total static pressure probe are provided on the flow measurement points; a third determination module, configured to determine the flow rate of each measurement region based on the total pressure and the static pressure collected from the total pressure tapping tube and the static pressure tapping tube or the total static pressure probe provided in each measurement region; and a fourth determination module, configured to determine the total flow rate of the rectangular intake pipeline according to the sum of the flow rates of each measurement region.

[0011] To achieve the above object, an embodiment of the third aspect of the present application provides an electronic device, including: at least one processing unit; and

[0012] At least one memory, the at least one memory being coupled to the at least one processing unit and storing instructions for execution by the at least one processing unit, the instructions causing the electronic device to execute the above-mentioned gas turbine rectangular duct flow measurement method when executed by the at least one processing unit.

[0013] To achieve the above object, an embodiment of the fourth aspect of the present application proposes a computer-readable storage medium having a computer program stored thereon, characterized in that the computer program is executable by a processor to implement the above-mentioned gas turbine rectangular duct flow measurement method.

[0014] To achieve the above object, an embodiment of the fifth aspect of the present application proposes a computer program product, the computer program product including computer-executable instructions that implement the above-mentioned gas turbine rectangular duct flow measurement method when executed by a processor.

[0015] The gas turbine rectangular duct flow measurement method and device provided by the embodiments of the present application obtain a plurality of measurement regions obtained by dividing the rectangular cross-section of the gas turbine rectangular intake duct; wherein each measurement region contains information on the flow velocity and the change in velocity gradient and the position information of each measurement region in the rectangular cross-section; according to the information on the flow velocity and the change in velocity gradient and the position information, classify each measurement region to determine the class label of each measurement region, where the class label is used to determine the number of flow measurement points arranged in the measurement region; for each measurement region, according to the area of the measurement region and the class label of the measurement region, determine to arrange no more than the target number of flow measurement points in the measurement region, and a total pressure tapping tube and a static pressure tapping tube or a total static pressure probe are provided on the flow measurement points; based on the total pressure and static pressure collected from the total pressure tapping tube and the static pressure tapping tube or the total static pressure probe provided in each measurement region, determine the flow rate of each measurement region; according to the sum of the flow rates of each measurement region, determine the total flow rate of the rectangular intake duct. Thus, according to the information on the flow velocity and the change in velocity gradient and the position information of each measurement region, determine the class label of each measurement region, and through the class label, an appropriate number of flow measurement points can be arranged for each measurement region, so as to ensure the rationality of the layout of the flow measurement points in each measurement region, and further to achieve a comprehensive and accurate measurement of the flow rate of each measurement region, thereby determining the total flow rate of the gas turbine rectangular intake duct, providing data support for judging the performance of the gas turbine.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0017] The accompanying drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application.

[0018] Figure 1 Schematic flow of a method for measuring the flow rate of a rectangular duct of a gas turbine provided by an embodiment of this application Figure 1 ;

[0019] Figure 2 Schematic flow of a method for measuring the flow rate of a rectangular duct of a gas turbine provided by an embodiment of this application Figure 2 ;

[0020] Figure 3 Schematic diagram of the frame corresponding to multiple measurement regions of the rectangular intake duct provided by an embodiment of this application;

[0021] Figure 4 Schematic flow of a method for measuring the flow rate of a rectangular duct of a gas turbine provided by an embodiment of this application Figure 3 ;

[0022] Figure 5 Schematic flow of a method for measuring the flow rate of a rectangular duct of a gas turbine provided by an embodiment of this application Figure 4 ;

[0023] Figure 6 Schematic structural diagram of a device for measuring the flow rate of a rectangular duct of a gas turbine provided by an embodiment of this application;

[0024] Figure 7 Schematic structural diagram of an electronic device provided by an embodiment of this application. Detailed implementation manners

[0025] The embodiments of this application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain this application and should not be construed as limiting this application.

[0026] A method, device, equipment, and storage medium for measuring the flow rate of a rectangular duct of a gas turbine according to an embodiment of this application will be described below with reference to the accompanying drawings.

[0027] Figure 1 Schematic flow of a method for measuring the flow rate of a rectangular duct of a gas turbine provided by an embodiment of this application Figure 1 .

[0028] As Figure 1 shown, the method includes the following steps:

[0029] Step 101: Obtain multiple measurement regions obtained by dividing the rectangular cross-section of the rectangular intake duct of the gas turbine; among them, each measurement region contains information on the flow velocity and the change in velocity gradient, as well as the position information of each measurement region in the rectangular cross-section.

[0030] It should be noted that the method for measuring the flow rate of the rectangular duct of the gas turbine in this embodiment is executed by a device for measuring the flow rate of the rectangular duct of the gas turbine. This device for measuring the flow rate of the rectangular duct of the gas turbine can be implemented by software and / or hardware. Among them, the device for measuring the flow rate of the rectangular duct of the gas turbine can be an electronic device or can be configured in an electronic device.

[0031] The electronic device can be a device that can be installed in the gas turbine, such as a gas turbine controller, a mobile phone, a wearable device, etc. In this embodiment of the application, the case where the device for measuring the flow rate of the rectangular duct of the gas turbine is configured in the electronic device and the electronic device is a gas turbine controller is taken as an example for illustration.

[0032] In order to obtain in detail the information on the flow velocity and the change in velocity gradient included in each measurement region, as a possible implementation manner, according to the velocity distribution cloud map of the flow field of the rectangular intake duct of the gas turbine, determine the information on the flow velocity and the change in velocity gradient included in each measurement region.

[0033] As an example, obtain the basic parameters of the rectangular intake duct of the gas turbine, input the basic parameters into the simulation field of the rectangular intake duct, obtain the velocity distribution cloud map of the flow field of the rectangular intake duct of the gas turbine, and according to the velocity distribution cloud map of the flow field of the rectangular intake duct of the gas turbine, determine the information on the flow velocity and the change in velocity gradient included in each measurement region.

[0034] It can be understood that the specific quantity and specific content of the basic parameters of the rectangular intake duct of the gas turbine are determined according to the actual situation, and this embodiment does not make specific limitations. For example, the basic parameters include, but are not limited to, the intake flow rate designed for the rectangular intake duct of the gas turbine.

[0035] It can be understood that there are at least three cases for the position information of the measurement region in the rectangular cross-section, namely, the middle position of the measurement region in the rectangular cross-section, the boundary position of the measurement region in the rectangular cross-section, and the measurement region that is neither at the boundary position nor at the middle position in the rectangular cross-section.

[0036] Step 102: Classify each measurement region according to the information on the flow velocity and the change in velocity gradient and the position information, and determine the class label of each measurement region, where the class label is used to determine the number of flow measurement points arranged in the measurement region.

[0037] It can be understood that the category labels of different measurement regions are not the same, and based on different category labels, the number of flow measurement points arranged in the measurement region is also not the same.

[0038] It should be noted that the category labels include but are not limited to the core region category label, the secondary transition category label, the transition category label, the boundary category label, and the corner region category label.

[0039] Step 103: For each measurement region, determine the flow measurement points for the measurement region with no more than the target number of measurement points according to the area of the measurement region and the category label of the measurement region, and a total pressure tapping pipe and a static pressure tapping pipe or a total static pressure probe are provided on the flow measurement points.

[0040] It should be understood that since the areas of different measurement regions are different and the shapes of different measurement regions are also different, in order to comprehensively understand the total static pressure of the measurement region, a suitable measuring device is selected to be arranged on the flow measurement points according to the shape and area of the measurement region.

[0041] For example, the measurement region belonging to the core region category label usually has a large area and is a rectangular region. When arranging the flow measurement points with no more than the target number of measurement points, a total pressure tapping pipe and a static pressure tapping pipe can be provided on the flow measurement points.

[0042] For another example, the measurement region belonging to the boundary category label is usually a long and narrow region. In this case, arranging a total pressure tapping pipe and a static pressure tapping pipe on the measurement points cannot comprehensively understand the total static pressure in the measurement region. Since the total static pressure probe can be moved by being installed on a movable displacement actuator, a total static pressure probe can be provided on the flow measurement points in the measurement region belonging to the boundary category label.

[0043] Step 104: Based on the total pressure and static pressure collected from the total pressure tapping pipe and the static pressure tapping pipe or the total static pressure probe arranged in each measurement region, determine the flow rate of each measurement region.

[0044] In order to obtain the total pressure and static pressure corresponding to each measurement region respectively, as a possible implementation manner, each measurement region is tested at least once to obtain the total pressure and static pressure corresponding to each measurement region respectively.

[0045] As an example, for each measurement region, the measurement region is tested at least once under the condition that the gas turbine is operating normally; in the at least one test, the total pressure and static pressure corresponding to each flow measurement point are obtained according to the total pressure tapping pipe and the static pressure tapping pipe or the total static pressure probe arranged in the measurement region.

[0046] It should be understood that since the measurement areas belonging to the boundary area type label and the measurement areas belonging to the corner area category label are usually measurement areas with relatively small areas, there are relatively few flow measurement points arranged in the measurement areas belonging to the boundary area type label and the measurement areas belonging to the corner area category label. Therefore, only at least one test is performed on the measurement areas belonging to the boundary area type label and the measurement areas belonging to the corner area category label, and the number of total pressure and static pressure corresponding to the flow measurement points obtained is also relatively small. However, a small number of test times will affect the flow rate of the measurement areas belonging to the boundary area type label and the measurement areas belonging to the corner area category label, and it is very easy to find the distortion of the flow data.

[0047] In this example, in the case of the measurement area belonging to the boundary area type label, determine the first test quantity threshold set for the measurement area belonging to the boundary area type label; according to the first test quantity threshold and the number of flow measurement points arranged in the measurement area belonging to the boundary area type label, determine the first number of times to test the measurement area belonging to the boundary area type label; if the gas turbine is operating normally, in the first number of tests, according to the total static pressure probe set in the measurement area belonging to the boundary area type label, obtain the total pressure and static pressure corresponding to each flow measurement point respectively.

[0048] It should be noted that the first number is a positive integer greater than 1.

[0049] It should be noted that the above-set first test quantity threshold is pre-set and changeable in the gas turbine rectangular pipeline flow measurement device. For example, the set first test quantity threshold can be 10. It can be understood that in actual applications, the set first test quantity threshold can be set according to actual needs, and this embodiment does not specifically limit the set first test quantity threshold.

[0050] For example, the first test quantity threshold set for the measurement area belonging to the boundary area type label is 10, and the number of flow measurement points arranged in the measurement area belonging to the boundary area type label is 2, then the first number of times to test the measurement area belonging to the boundary area type label can be determined to be 5 (10 % 2 = 5). If the gas turbine is operating normally, in the first number of times (5) of tests, according to the total static pressure probe set in the measurement area belonging to the boundary area type label, obtain the total pressure and static pressure corresponding to each flow measurement point respectively.

[0051] In this example, in the case of a measurement area belonging to the corner area category label, a second test quantity threshold set for the measurement area determined to belong to the corner area category label is determined; according to the second test quantity threshold and the target measurement point quantity, a second number of times for testing the measurement area belonging to the corner area category label is determined; if the gas turbine is operating normally, in the second number of times of tests, according to the total static pressure probes arranged in the measurement area belonging to the corner area category label, the total pressure and static pressure corresponding to each flow measurement point and the second number of times are obtained.

[0052] Among them, it should be noted that the second number of times is a positive integer greater than 1.

[0053] Among them, it should be noted that the above-mentioned set second test quantity threshold is pre-set and changeable in the gas turbine rectangular pipeline flow measurement device. For example, the set second test quantity threshold can be 12. It can be understood that in practical applications, the set second test quantity threshold can be set according to actual needs, and this embodiment does not specifically limit the set second test quantity threshold.

[0054] For example, the second test quantity threshold set for the measurement area belonging to the corner area category label is 12, and the number of flow measurement points arranged in the measurement area belonging to the corner area category label is 2, then the second number of times for testing the measurement area belonging to the corner area category label can be determined to be 6 (12 % 2 = 6). If the gas turbine is operating normally, in the second number of times (6) of tests, according to the total static pressure probes arranged in the measurement area belonging to the corner area category label, the total pressure and static pressure corresponding to each flow measurement point and 6 are obtained.

[0055] Step 105, determine the total flow rate of the rectangular intake pipeline according to the sum of the flow rates of each measurement area.

[0056] For example, there are a measurement area A belonging to the core area category label, a measurement area B belonging to the secondary transition category label, a measurement area C belonging to the transition category label, a measurement area D belonging to the boundary category label, and a measurement area E belonging to the corner area category label. Among them, the flow rate Q1 of the measurement area A, the flow rate Q2 of the measurement area B, the flow rate Q3 of the measurement area C, the flow rate Q4 of the measurement area D, and the flow rate Q5 of the measurement area E are obtained. Then the total flow rate Q of the rectangular intake pipeline = Q1 + Q2 + Q3 + Q4 + Q5.

[0057] The gas turbine rectangular pipeline flow measurement method according to the embodiment of the present application obtains a plurality of measurement regions obtained by dividing the rectangular cross-section of the rectangular intake pipeline of the gas turbine; wherein, each measurement region contains information on the flow velocity and the change in velocity gradient, as well as the position information of each measurement region in the rectangular cross-section; according to the information on the flow velocity and the change in velocity gradient and the position information, each measurement region is classified to determine the category label of each measurement region, where the category label is used to determine the number of flow measurement points arranged in the measurement region; for each measurement region, according to the area of the measurement region and the category label of the measurement region, it is determined to arrange no more than the target number of flow measurement points in the measurement region, and a total pressure tapping pipe and a static pressure tapping pipe or a total static pressure probe are provided on the flow measurement points; based on the total pressure and static pressure collected from the total pressure tapping pipe and the static pressure tapping pipe or the total static pressure probe arranged in each measurement region, the flow rate of each measurement region is determined; according to the sum of the flow rates of each measurement region, the total flow rate of the rectangular intake pipeline is determined. Thus, according to the information on the flow velocity and the change in velocity gradient and the position information of each measurement region, the category label of each measurement region is determined. Through the category label, an appropriate number of flow measurement points can be arranged for each measurement region, so as to ensure the rationality of the layout of the flow measurement points in each measurement region, and further to achieve a comprehensive and accurate measurement of the flow rate of each measurement region, thereby determining the total flow rate of the rectangular intake pipeline of the gas turbine, providing data support for judging the performance of the gas turbine.

[0058] Based on the above embodiments, in order to clearly understand how to classify each measurement region according to the information on the flow velocity and the change in velocity gradient and the position information, and determine the category label of each measurement region, the following will be combined with Figure 2 to further exemplarily describe the method of this embodiment.

[0059] Figure 2 is a flow schematic Figure 2 of a gas turbine rectangular pipeline flow measurement method provided by the embodiment of the present application, which further refines the above embodiment.

[0060] As Figure 2 shown, the method may include the following steps:

[0061] Step 201, obtain a plurality of measurement regions obtained by dividing the rectangular cross-section of the rectangular intake pipeline of the gas turbine; wherein, each measurement region contains information on the flow velocity and the change in velocity gradient, as well as the position information of each measurement region in the rectangular cross-section.

[0062] It should be noted that the execution process of step 201 can be implemented in any one of the embodiments of the present application, and the embodiments of the present application do not make any limitations on this, nor will it be elaborated further.

[0063] Step 202: According to the information on the flow velocity and the change in velocity gradient, determine, from each measurement area, a first measurement area with the maximum flow velocity and a uniform change in velocity gradient.

[0064] Step 203: When the position information is used to indicate that the first measurement area is at the middle position of the rectangular cross-section, determine that the first measurement area belongs to the core area category label.

[0065] Step 204: When the flow velocity is less than the flow velocity of the first measurement area and greater than a preset first threshold flow velocity and / or the position information is used to indicate that the corresponding measurement area is not at the boundary position of the rectangular cross-section, determine that the measurement area belongs to the secondary transition category label.

[0066] It should be noted that the density of arranging flow measurement points in the measurement area belonging to the core area category label is less than the density of arranging flow measurement points in the measurement area belonging to the secondary transition area category label.

[0067] It should be noted that the above-mentioned preset first threshold flow velocity is pre-set and changeable in the gas turbine rectangular pipeline flow measurement device. For example, the preset first threshold flow velocity can be 90% of the flow velocity of the first measurement area. It can be understood that in practical applications, the preset first threshold flow velocity can be set according to actual needs, and this embodiment does not specifically limit the preset first threshold flow velocity.

[0068] It should be noted that there are fluctuations in the change of velocity gradient in the measurement area belonging to the secondary transition category label.

[0069] Step 205: When the flow velocity is less than the first threshold flow velocity and greater than a preset second threshold flow velocity and / or the position information is used to indicate that the corresponding measurement area is not at the boundary position of the rectangular cross-section, determine that the measurement area belongs to the transition category label.

[0070] It should be noted that the density of arranging flow measurement points in the measurement area belonging to the secondary transition area category label is less than the density of arranging flow measurement points in the measurement area belonging to the transition area category label.

[0071] It should be noted that the above-mentioned preset second threshold flow velocity is pre-set and changeable in the gas turbine rectangular pipeline flow measurement device. For example, the preset second threshold flow velocity can be 70% of the flow velocity of the first measurement area. It can be understood that in practical applications, the preset second threshold flow velocity can be set according to actual needs, and this embodiment does not specifically limit the preset second threshold flow velocity.

[0072] Among them, it should be noted that the change in the velocity gradient of the measurement area belonging to the transition category label has a slight increase compared to the change in the velocity gradient of the measurement area belonging to the sub-transition category label, and the change in the velocity gradient of the measurement area belonging to the transition category label is greater than that of the measurement area belonging to the sub-transition category label and the first measurement area respectively.

[0073] Step 206, when the position information is used to indicate the boundary position of the corresponding measurement area on the rectangular cross-section, determine the target number of boundary lines of the measurement area that coincides with the number of boundary lines of the rectangular cross-section.

[0074] In this example, if the target number is 1, determine that the measurement area belongs to the boundary area category label; if the target number is 2, determine that the measurement area belongs to the corner area category label.

[0075] Among them, it should be noted that the measurement area belonging to the boundary area category label is adjacent to the measurement area belonging to the transition category label, and the width of the measurement area belonging to the corner area category label is equal to the sum of the width of the measurement area belonging to the boundary area category label and the width of the measurement area belonging to the transition category label.

[0076] Among them, it should be noted that the change in the velocity gradient of the measurement area belonging to the boundary area category label and the measurement area belonging to the corner area category label is relatively obvious, and the change in the velocity gradient of the measurement area belonging to the boundary area category label and the measurement area belonging to the corner area category label is greater than that of the measurement area belonging to the transition category label.

[0077] It should be understood that since the number of flow measurement points arranged in different measurement areas is not the same, and the larger the area of the measurement area, the correspondingly increased number of flow measurement points required. Each flow measurement point has a corresponding total pressure and static pressure. The more flow measurement points, the more total pressure and static pressure obtained. Therefore, in order to conveniently process the total pressure and static pressure corresponding to each flow measurement point to obtain the flow rate of each flow area, the total pressure tapping pipes arranged at each flow measurement point can be connected through pipelines and connected to the first differential pressure transmitter; the static pressure tapping pipes arranged at each flow measurement point can be connected through pipelines and connected to the second differential pressure transmitter; and the total static pressure probes arranged at each flow measurement point can be connected through pipelines and connected to the third differential pressure transmitter.

[0078] Step 207, for each measurement area, determine the flow measurement points that do not exceed the target number of measurement points arranged for the measurement area according to the area of the measurement area and the category label of the measurement area, and there are total pressure tapping pipes and static pressure tapping pipes or total static pressure probes set on the flow measurement points.

[0079] Step 208: Determine the flow rate of each measurement area based on the total pressure and static pressure collected by the total pressure tapping pipes and static pressure tapping pipes or total static pressure probes set in each measurement area.

[0080] Step 209: Determine the total flow rate of the rectangular intake pipe according to the sum of the flow rates of each measurement area.

[0081] It should be noted that the execution processes of steps 207 - 209 can be implemented in any one of the embodiments of the present application, and the embodiments of the present application do not make any limitations in this regard and will not be elaborated further.

[0082] For example, the schematic diagram of the frames corresponding to multiple measurement areas of the rectangular intake pipe is as Figure 3 shown. Among them, the measurement areas belonging to the core area category label are adjacent to the measurement areas belonging to the sub-transition category label; the measurement areas belonging to the sub-transition area category label are adjacent to the measurement areas belonging to the transition category label; the measurement areas belonging to the boundary area category label are adjacent to the measurement areas belonging to the transition category label; the measurement areas belonging to the corner area category label are adjacent to the measurement areas belonging to the transition category label and the measurement areas belonging to the boundary area category label.

[0083] Among them, it should be noted that the width of the measurement area belonging to the corner area category label is equal to the sum of the widths of the measurement areas belonging to the boundary area category label and the measurement areas belonging to the transition category label.

[0084] Among them, it should be noted that Figure 3 the black dots in Figure 3 are used to represent the flow measurement points, and the total pressure tapping pipes and static pressure tapping pipes or total static pressure probes set at the flow measurement points are respectively connected through pipelines (represented by black lines in

[0085] Based on the above embodiments, in order to clearly understand how to determine the flow measurement points that do not exceed the target number of measurement points for each measurement area according to the area of the measurement area and the category label of the measurement area, the following combines Figure 4 to further exemplarily describe the method of this embodiment.

[0086] Figure 4 The flow chart of a gas turbine rectangular pipe flow measurement method provided by an embodiment of the present application Figure 3 。

[0087] As Figure 4 shown, the method may include:

[0088] Step 401: Obtain multiple measurement regions obtained by dividing the rectangular cross-section of the rectangular intake duct of the gas turbine; wherein, each measurement region contains information on flow velocity and velocity gradient changes, as well as the position information of each measurement region in the rectangular cross-section.

[0089] Step 402: Classify each measurement region according to the information on flow velocity and velocity gradient changes and the position information, and determine the class label of each measurement region. The class label is used to determine the number of flow measurement points arranged within the measurement region.

[0090] It should be noted that the execution processes of Step 401 and Step 402 can be implemented respectively in any manner in the various embodiments of the present application. The embodiments of the present application do not make any limitations in this regard and will not be elaborated further.

[0091] Step 403: Determine the target percentage threshold according to the class label of the measurement region; wherein, each class label corresponds to a target percentage threshold.

[0092] It can be understood that the target percentage thresholds corresponding to different class labels are different.

[0093] It should be noted that the target percentage threshold is pre-set and can be changed in the gas turbine rectangular duct flow measurement device. For example, the target percentage threshold corresponding to the core region class label can be 3%, and the target percentage threshold corresponding to the transition region class label can be 4%. It can be understood that in actual applications, the target percentage thresholds corresponding to different class labels can be set according to actual needs, and this embodiment does not make specific limitations on the target percentage thresholds corresponding to different class labels.

[0094] Step 404: Determine the coverage area threshold that the sum of the areas covered by the arranged flow measurement points cannot be greater than according to the product of the target percentage threshold and the area of the measurement region.

[0095] For example, the target percentage threshold corresponding to the core region class label is 3%, and the area of the measurement region S1 belonging to the core region class label. According to the product of the target percentage threshold (3%) and the area of the measurement region (S1), the coverage area threshold is determined to be S1 * 3%.

[0096] Step 405: Determine the target number of measurement points according to the coverage area threshold and the area covered by the flow measurement points.

[0097] It should be noted that the target number of measurement points is a positive integer greater than 1.

[0098] For example, assume that the coverage area threshold is S1 * 3%, and the area S2 that needs to be covered by arranging a flow measurement point. Then divide the coverage area threshold (S1 * 3%) by the area (S2) that needs to be covered by the flow measurement point to obtain an intermediate value, round the intermediate value, and determine the number of target measurement points.

[0099] It should be understood that since the area of the measurement area belonging to the boundary area type label is small, and the total static pressure probe that can move along the direction perpendicular to the wall surface of the rectangular intake pipe is set on the flow measurement points arranged in the measurement area belonging to the boundary area type label, therefore, through complex calculations to determine the number of target measurement points corresponding to the measurement area belonging to the boundary area type label is not only more troublesome but also affects the calculation speed. The number of measurement points in the measurement area belonging to the boundary area type label can be preset based on the number of flow measurement points arranged in the measurement area belonging to the boundary area type label in the past.

[0100] Among them, it should be noted that the boundary area type label includes the long-side boundary area type label and the short-side boundary area type label, and the area of the measurement area belonging to the long-side boundary area type label is larger than the area of the measurement area belonging to the short-side boundary area type label.

[0101] In this example, according to the measurement area belonging to the long-side boundary area type label, determine the preset first number of measurement points; according to the measurement area belonging to the short-side boundary area type label, determine the preset second number of measurement points; among them, the first number of measurement points is not less than the second number of measurement points.

[0102] Among them, it should be noted that the above-mentioned preset first number of measurement points is pre-set and can be changed in the gas turbine rectangular pipeline flow measurement device. For example, the preset first number of measurement points can be 3. It can be understood that in actual applications, the preset first number of measurement points can be set according to actual needs, and this embodiment does not specifically limit the preset first number of measurement points.

[0103] Among them, it should be noted that the above-mentioned preset second number of measurement points is pre-set and can be changed in the gas turbine rectangular pipeline flow measurement device. For example, the preset second number of measurement points can be 2. It can be understood that in actual applications, the preset second number of measurement points can be set according to actual needs, and this embodiment does not specifically limit the preset second number of measurement points.

[0104] Step 406, based on the total pressure and static pressure collected from the total pressure tapping pipes and static pressure tapping pipes or total static pressure probes set in each measurement area, determine the flow rate of each measurement area.

[0105] Step 407, according to the sum of the flow rates of each measurement area, determine the total flow rate of the rectangular intake pipe.

[0106] It should be noted that the execution processes of steps 406 and 407 can be implemented by any one of the embodiments of the present application respectively. The embodiments of the present application do not make any limitations in this regard and will not be elaborated further.

[0107] Based on the above embodiments, in order to clearly understand how to determine the flow rate of each measurement area based on the total pressure and static pressure collected from the total pressure tapping pipes and static pressure tapping pipes or total static pressure probes arranged in each measurement area, the following will be combined with Figure 5 to further exemplarily describe the method of this embodiment.

[0108] Figure 5 is a schematic flow chart of a method for measuring the flow rate of a rectangular pipeline of a gas turbine provided by an embodiment of the present application Figure 4 .

[0109] As Figure 5 shown, the method may include:

[0110] Step 501, obtaining a plurality of measurement areas obtained by dividing the rectangular cross-section of the rectangular intake pipeline of the gas turbine; wherein, each measurement area contains information on the flow velocity and the change in velocity gradient, as well as the position information of each measurement area in the rectangular cross-section.

[0111] Step 502, classifying each measurement area according to the information on the flow velocity and the change in velocity gradient and the position information, and determining the class label of each measurement area, where the class label is used to determine the number of flow measurement points arranged in the measurement area.

[0112] Step 503, for each measurement area, determine the flow measurement points for arranging no more than the target number of measurement points in the measurement area according to the area of the measurement area and the class label of the measurement area, and a total pressure tapping pipe and a static pressure tapping pipe or a total static pressure probe are provided on the flow measurement points.

[0113] It should be noted that the execution processes of steps 501 to 503 can be implemented by any one of the embodiments of the present application respectively. The embodiments of the present application do not make any limitations in this regard and will not be elaborated further.

[0114] Step 504, for each measurement area, determine the total pressure and static pressure corresponding to each flow measurement point in the measurement area based on the total pressure tapping pipe and the static pressure tapping pipe or the total static pressure probe arranged in the measurement area.

[0115] Step 505, determine the total static pressure average value according to the ratio of the sum of the differences between the total pressure and the static pressure corresponding to each flow measurement point in the measurement area to the total number of flow measurement points arranged in the measurement area.

[0116] Step 506: Determine the flow rate of the measurement area based on the average total static pressure.

[0117] To obtain the flow rate of the measurement area, as a possible implementation, determine the flow rate of the measurement area based on the flow velocity of the measurement area determined from the average total static pressure.

[0118] As an example, determine the flow velocity of the measurement area according to the average total static pressure; determine the flow rate of the measurement area according to the flow velocity of the measurement area and the area of the measurement area.

[0119] Step 507: Determine the total flow rate of the rectangular intake duct based on the sum of the flow rates of each measurement area.

[0120] It should be noted that the execution process of step 507 can be implemented in any one of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be elaborated further.

[0121] Figure 6 It is a schematic structural diagram of a flow rate measuring device for a rectangular duct of a gas turbine provided by an embodiment of the present application.

[0122] As Figure 6 shown, the gas turbine rectangular duct flow rate measuring device 600 includes: a first acquisition module 601, a first determination module 602, a second determination module 603, a third determination module 604, and a fourth determination module 605.

[0123] The first acquisition module 601 is configured to acquire a plurality of measurement areas obtained by dividing the rectangular cross-section of the rectangular intake duct of the gas turbine; wherein, each measurement area contains information on the flow velocity and the change in velocity gradient, as well as the position information of each measurement area in the rectangular cross-section;

[0124] The first determination module 602 is configured to classify each measurement area according to the information on the flow velocity and the change in velocity gradient and the position information, and determine the category label of each measurement area, where the category label is used to determine the number of flow measurement points arranged in the measurement area;

[0125] The second determination module 603 is configured to, for each measurement area, determine the flow measurement points arranged in the measurement area not exceeding the target number of measurement points according to the area of the measurement area and the category label of the measurement area, and a total pressure tapping tube and a static pressure tapping tube or a total static pressure probe are provided on the flow measurement points;

[0126] The third determination module 604 is configured to determine the flow rate of each measurement area based on the total pressure and the static pressure collected from the total pressure tapping tube and the static pressure tapping tube or the total static pressure probe arranged in each measurement area;

[0127] The fourth determination module 605 is configured to determine the total flow rate of the rectangular intake pipe according to the sum of the flow rates of each measurement area.

[0128] In an embodiment of the present application, the first determination module 602 is specifically configured to:

[0129] According to the information of the flow velocity and the change of the velocity gradient, determine the first measurement area with the maximum flow velocity and uniform change of the velocity gradient from each measurement area;

[0130] When the position information is used to indicate the middle position of the first measurement area in the rectangular cross-section, determine that the first measurement area belongs to the core area category label;

[0131] When the flow velocity is less than the flow velocity of the first measurement area and greater than the preset first threshold flow velocity and / or the position information is used to indicate that the corresponding measurement area is not at the boundary position of the rectangular cross-section, determine that the measurement area belongs to the sub-transition category label; wherein, the density of arranging flow measurement points in the measurement area belonging to the core area category label is less than the density of arranging flow measurement points in the measurement area belonging to the sub-transition area category label;

[0132] When the flow velocity is less than the first threshold flow velocity and greater than the preset second threshold flow velocity and / or the position information is used to indicate that the corresponding measurement area is not at the boundary position of the rectangular cross-section, determine that the measurement area belongs to the transition category label; wherein, the density of arranging flow measurement points in the measurement area belonging to the sub-transition area category label is less than the density of arranging flow measurement points in the measurement area belonging to the transition area category label;

[0133] When the position information is used to indicate that the corresponding measurement area is at the boundary position of the rectangular cross-section, determine the target number of the boundary lines of the measurement area that coincides with the number of the boundary lines of the rectangular cross-section.

[0134] In an embodiment of the present application, the first determination module 602 is further specifically configured to:

[0135] If the target number is 1, determine that the measurement area belongs to the boundary area category label; wherein, the measurement area belonging to the boundary area category label is adjacent to the measurement area belonging to the transition category label;

[0136] If the target number is 2, determine that the measurement area belongs to the corner area category label; wherein, the width of the measurement area belonging to the corner area category label is equal to the sum of the width of the measurement area belonging to the boundary area category label and the width of the measurement area belonging to the transition category label.

[0137] In an embodiment of the present application, the second determination module 603 is specifically configured to:

[0138] Determine a target percentage threshold according to the category label of the measurement area; wherein, each category label corresponds to a target percentage threshold;

[0139] Determine a coverage area threshold that the sum of the areas covered by the arranged flow measurement points cannot exceed according to the product of the target percentage threshold and the area of the measurement area;

[0140] Determine the target number of measurement points according to the coverage area threshold and the area covered by the flow measurement points.

[0141] In an embodiment of the present application, a total static pressure probe that can move along the direction perpendicular to the wall surface of the rectangular intake pipe is arranged on the flow measurement points arranged in the measurement area belonging to the boundary area type label. The boundary area type label includes the long side boundary area type label and the short side boundary area type label. The second determination module 603 is further specifically configured to:

[0142] Determine a preset first number of measurement points according to the measurement area belonging to the long side boundary area type label;

[0143] Determine a preset second number of measurement points according to the measurement area belonging to the short side boundary area type label; wherein, the first number of measurement points is not less than the second number of measurement points.

[0144] In an embodiment of the present application, the device further includes a test module, which is specifically configured to:

[0145] For each measurement area, perform at least one test on the measurement area under the condition that the gas turbine is running normally;

[0146] In at least one test, obtain the total pressure and static pressure corresponding to each flow measurement point according to the total pressure tapping pipe and static pressure tapping pipe or total static pressure probe arranged in the measurement area.

[0147] In an embodiment of the present application, the test module is further specifically configured to:

[0148] In the case of a measurement area belonging to the boundary area type label, determine a first test quantity threshold set for the measurement area belonging to the boundary area type label;

[0149] Determine the first number of times of testing the measurement area belonging to the boundary area type label according to the first test quantity threshold and the first number of measurement points and / or the second number of measurement points; wherein, the first number of times is a positive integer greater than 1;

[0150] If the gas turbine is running normally, in the first number of times of testing, obtain the total pressure and static pressure corresponding to each of the first number of flow measurement points according to the total static pressure probe arranged in the measurement area belonging to the boundary area type label.

[0151] In an embodiment of the present application, the test module is further specifically configured to:

[0152] In the case of a measurement area belonging to the corner area category label, determine a second test quantity threshold set for the measurement area belonging to the corner area category label;

[0153] According to the second test quantity threshold and the target measurement point quantity, determine a second number of times to test the measurement area belonging to the corner area category label; wherein, the second number of times is a positive integer greater than 1;

[0154] If the gas turbine is operating normally, in the second number of times of tests, according to the total static pressure probes arranged in the measurement area belonging to the corner area category label, obtain the total pressure and static pressure corresponding to each of the second number of times for each flow measurement point.

[0155] In an embodiment of the present application, the third determination module 604 is specifically configured to:

[0156] For each measurement area, based on the total pressure tapping pipe and static pressure tapping pipe or total static pressure probes arranged in the measurement area, determine the total pressure and static pressure corresponding to each flow measurement point in the measurement area;

[0157] According to the ratio of the sum of the differences between the total pressure and the static pressure corresponding to each flow measurement point in the measurement area to the total number of flow measurement points arranged in the measurement area, determine the total static pressure average value;

[0158] According to the total static pressure average value, determine the flow rate of the measurement area.

[0159] It should be noted that the foregoing explanation of the method embodiment is also applicable to the device of this embodiment, and will not be elaborated here.

[0160] The flow measurement device for a rectangular pipeline of a gas turbine provided by an embodiment of the present application obtains a plurality of measurement regions obtained by dividing the rectangular cross-section of the rectangular intake pipeline of the gas turbine; wherein each measurement region contains information on the flow velocity and the change in velocity gradient, as well as the position information of each measurement region in the rectangular cross-section; according to the information on the flow velocity and the change in velocity gradient and the position information, classify each measurement region to determine the class label of each measurement region, where the class label is used to determine the number of flow measurement points arranged in the measurement region; for each measurement region, according to the area of the measurement region and the class label of the measurement region, determine to arrange no more than the target number of flow measurement points in the measurement region, and a total pressure tapping pipe and a static pressure tapping pipe or a total static pressure probe are provided on the flow measurement points; based on the total pressure and the static pressure collected from the total pressure tapping pipe and the static pressure tapping pipe or the total static pressure probe provided in each measurement region, determine the flow rate of each measurement region; according to the sum of the flow rates of each measurement region, determine the total flow rate of the rectangular intake pipeline. Thus, according to the information on the flow velocity and the change in velocity gradient and the position information of each measurement region, determine the class label of each measurement region. Through the class label, an appropriate number of flow measurement points can be arranged for each measurement region, so as to ensure the rationality of the layout of the flow measurement points in each measurement region, and further achieve a comprehensive and accurate measurement of the flow rate of each measurement region, thereby determining the total flow rate of the rectangular intake pipeline of the gas turbine, providing data support for judging the performance of the gas turbine.

[0161] Among them, it should be noted that it should be understood that the division of each module of the above device is only a logical function division. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. And these modules can all be implemented in the form of software called by a processing element; they can also all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the second determination module 603 can be a separately established processing element, or can be integrated in a certain chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and the function of the second determination module 603 above is called and executed by a certain processing element of the above device. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or can be independently implemented. Here, the processing element can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the integrated logic circuit in the hardware of the processor element or the instruction in the form of software.

[0162] Figure 7 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

[0163] Such as Figure 7As shown, the electronic device 700 may include: a transceiver 701, a processor 702, and a memory 703.

[0164] The processor 702 executes the computer-executable instructions stored in the memory, enabling the processor 702 to execute the solutions in the above embodiments. The processor 702 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0165] The memory 703 is connected to the processor 702 via a system bus and completes communication therebetween. The memory 703 is used to store computer program instructions.

[0166] The system bus may be a peripheral component interconnect (PCI) bus, an extended industry standard architecture (EISA) bus, or the like. The system bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity, only a thick line is shown in the figure, but it does not mean that there is only one bus or one type of bus. The transceiver is used to implement communication between the database access device and other computers (such as clients, read-write libraries, and read-only libraries). The memory may include a random access memory (RAM) and may also include a non-volatile memory.

[0167] The electronic device provided in the embodiments of the present application may be the terminal device in the above embodiments.

[0168] The embodiments of the present application further provide a chip for running instructions. The chip is used to execute the technical solutions of the gas turbine rectangular duct flow measurement method in the above embodiments.

[0169] The embodiments of the present application further provide a computer-readable storage medium. The computer-readable storage medium stores computer instructions. When the computer instructions are run on a computer, the computer is enabled to execute the technical solutions of the gas turbine rectangular duct flow measurement method in the above embodiments.

[0170] In the description of the present application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0171] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0172] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A method for measuring flow rate in a rectangular pipeline of a gas turbine, characterized in that: The method comprises: Acquire a plurality of measurement areas obtained by dividing a rectangular cross section of a rectangular intake duct of a gas turbine; wherein each of the measurement areas contains information on flow velocity and velocity gradient changes and position information of each of the measurement areas in the rectangular cross section; Classify each of the measurement areas according to the information of the flow velocity and velocity gradient change and the position information, and determine a category label for each of the measurement areas, wherein the category label is used to determine the number of flow measurement points to be arranged in the measurement area; For each of the measurement areas, according to the area of ​​the measurement area and the category label of the measurement area, determine to arrange the flow measurement points in the measurement area not exceeding the target number of measurement points, and to set a total pressure taking pipe and a static pressure taking pipe or a total static pressure probe on the flow measurement point; Determine the flow rate of each of the measurement areas based on the total pressure and static pressure collected by the total pressure taking pipe and the static pressure taking pipe or the total static pressure probe provided in each of the measurement areas; The total flow rate of the rectangular air intake duct is determined according to the sum of the flow rates of the respective measurement areas.

2. The method according to claim 1, characterized in that The method of classifying each of the measurement areas according to the information of the flow velocity and velocity gradient change and the position information, and determining a category label for each of the measurement areas, wherein the category label is used to determine the number of flow measurement points arranged in the measurement area, includes: According to the information of the flow velocity and velocity gradient change, determining, from each of the measurement areas, a first measurement area with the maximum flow velocity and the uniform velocity gradient change; In a case where the position information is used to indicate that the first measurement area is in the middle of the rectangular cross section, determining that the first measurement area belongs to a core area category label; When the flow rate is less than the flow rate of the first measurement area and greater than a preset first threshold flow rate and / or the position information is used to indicate that the corresponding measurement area is not at the boundary position of the rectangular cross-section, it is determined that the measurement area belongs to the secondary transition category label; wherein the density of arranging the flow measurement points in the measurement area belonging to the core area category label is less than the density of arranging the flow measurement points in the measurement area belonging to the secondary transition area category label; When the flow rate is less than the first threshold flow rate and greater than a preset second threshold flow rate and / or the position information is used to indicate that the corresponding measurement area is not at the boundary position of the rectangular cross-section, it is determined that the measurement area belongs to the transition category label; wherein the density of arranging the flow measurement points in the measurement area belonging to the secondary transition area category label is less than the density of arranging the flow measurement points in the measurement area belonging to the transition area category label; In a case where the position information is used to indicate the boundary position of the corresponding measurement area on the rectangular cross section, a target number of boundary lines of the measurement area and the number of boundary lines of the rectangular cross section that overlap is determined.

3. The method according to claim 2, characterized in that In the case where the position information is used to indicate the boundary position of the corresponding measurement area in the rectangular cross section, after determining the target number of the number of boundary lines of the measurement area and the number of boundary lines of the rectangular cross section that overlap, the method includes: If the target number is 1, it is determined that the measurement area belongs to a boundary area category label; wherein the measurement area belonging to the boundary area category label is adjacent to the measurement area belonging to the transition category label; If the target number of strips is 2, it is determined that the measurement area belongs to the corner area category label; wherein the width of the measurement area belonging to the corner area category label is equal to the sum of the width of the measurement area belonging to the boundary area category label and the width of the measurement area belonging to the transition category label.

4. The method according to any one of claims 1 to 3, characterized in that: For each of the measurement areas, according to the area of ​​the measurement area and the category label of the measurement area, determining that the flow measurement points not exceeding the target number of measurement points are arranged in the measurement area, and providing a total pressure taking pipe and a static pressure taking pipe or a total static pressure probe at the flow measurement point, includes: Determine a target percentage threshold according to the category label of the measurement area; wherein any category label corresponds to one target percentage threshold; According to the product of the target percentage threshold and the area of ​​the measurement area, determine a coverage area threshold that the sum of the areas covered by the flow measurement points cannot be greater than; The number of target measuring points is determined according to the coverage area threshold and the area covered by the flow measuring points.

5. The method according to claim 4, characterized in that in, A total static pressure probe movable along a direction perpendicular to the wall of a rectangular air intake duct is provided at a flow measurement point arranged in a measurement area belonging to a boundary area type tag, wherein the boundary area type tag includes a long side boundary area type tag and a short side boundary area type tag, and the method further includes: Determining a preset number of first measuring points according to the measuring area belonging to the long side boundary area type label; A preset second number of measuring points is determined according to the measuring area belonging to the short-side boundary area type label; wherein the first number of measuring points is not less than the second number of measuring points.

6. The method according to claim 1, characterized in that Before determining the flow rate of each measurement area based on the total pressure and static pressure collected by the total pressure taking pipe and the static pressure taking pipe or the total static pressure probe provided in each measurement area, the method further includes: For each of the measurement areas, when the gas turbine is operating normally, testing the measurement area at least once; In at least one test, the total pressure and the static pressure corresponding to each of the flow measurement points are obtained according to the total pressure taking pipe and the static pressure taking pipe or the total static pressure probe arranged in the measurement area.

7. The method according to claim 6, characterized in that The method further comprises: In the case of a measurement area belonging to a boundary area type tag, determining a first test quantity threshold set for the measurement area belonging to said boundary area type tag; Determine a first number of times of testing the measurement area belonging to the boundary area type label according to the first test number threshold and the first number of measurement points and / or the second number of measurement points; wherein the first number of times is a positive integer greater than 1; If the gas turbine operates normally, in the first number of tests, the total pressure and static pressure corresponding to each of the flow measurement points are obtained according to the total static pressure probe set in the measurement area belonging to the boundary area type label.

8. The method according to claim 6, characterized in that The method further comprises: In the case of a measurement area belonging to a corner area category label, determining a second test quantity threshold value set for the measurement area belonging to the corner area category label; Determine a second number of times to test the measurement area belonging to the corner area category label according to the second test number threshold and the number of target measurement points; wherein the second number of times is a positive integer greater than 1; If the gas turbine operates normally, in the second number of tests, the second number of total pressures and static pressures corresponding to each of the flow measurement points are obtained according to the total static pressure probe set in the measurement area belonging to the corner area category label.

9. The method according to claim 1, characterized in that The determining of the flow rate of each measurement area based on the total pressure and static pressure collected by the total pressure taking pipe and the static pressure taking pipe or the total static pressure probe provided in each measurement area includes: For each measurement area, based on the total pressure taking pipe and the static pressure taking pipe or the total static pressure probe arranged in the measurement area, determine the total pressure and the static pressure corresponding to each of the flow measurement points in the measurement area; Determine the average total static pressure value according to the ratio of the sum of the differences between the total pressure and the static pressure corresponding to each of the flow measurement points in the measurement area to the total number of the flow measurement points arranged in the measurement area; The flow rate of the measurement area is determined based on the total static pressure average value.

10. A gas turbine rectangular pipe flow measurement device, characterized in that: include: A first acquisition module is used to acquire a plurality of measurement areas obtained by dividing a rectangular cross section of a rectangular intake duct of a gas turbine; wherein each of the measurement areas contains information on flow velocity and velocity gradient changes and position information of each of the measurement areas in the rectangular cross section; A first determination module is used to classify each of the measurement areas according to the information of the flow velocity and velocity gradient change and the position information, and determine a category label of each of the measurement areas, wherein the category label is used to determine the number of flow measurement points arranged in the measurement area; A second determination module is used to determine, for each of the measurement areas, according to the area of ​​the measurement area and the category label of the measurement area, that the flow measurement points not exceeding the target number of measurement points are arranged in the measurement area, and that a total pressure taking pipe and a static pressure taking pipe or a total static pressure probe are arranged on the flow measurement point; A third determination module is used to determine the flow rate of each of the measurement areas based on the total pressure and static pressure collected by the total pressure taking pipe and the static pressure taking pipe or the total static pressure probe provided in each of the measurement areas; The fourth determination module is used to determine the total flow of the rectangular air intake duct according to the sum of the flow rates of each of the measurement areas.

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