Impeller quality evaluation method and device

Abstract

The invention provides an impeller quality evaluation method and device, and relates to the technical field of water meter impeller quality evaluation.The impeller quality evaluation method comprises the steps that a vertical upward horn mouth pipeline is controlled to output conical water flow based on preset parameters of a current to-be-detected impeller, so that the current to-be-detected impeller is in a target suspension state in the conical water flow; detecting the balance, the sinkage and the swing condition of the current impeller to be detected in the target suspension state; and based on the detection result, the quality of the current to-be-detected impeller is evaluated, and the technical problems that the impeller evaluation efficiency is low and the accuracy is limited are solved.

Description

Technical Field

[0001] The invention relates to the technical field of water meter impeller quality assessment, and in particular to an impeller quality assessment method and device. Background Art

[0002] In the field of modern water meter manufacturing, the impeller is the core functional component inside the water meter, and its quality directly determines the overall performance and measurement accuracy of the water meter. The impeller plays a key role in the water meter, converting the kinetic energy of the water flow into a measurable signal through its rotational motion, thereby achieving accurate measurement of the water flow. Therefore, the quality control of the impeller has always been a crucial link in the water meter manufacturing process.

[0003] At present, the quality inspection of impellers in the industry mainly focuses on the precise measurement of their key geometric dimensions. Although this method can ensure the manufacturing accuracy of the impeller to a certain extent, the inspection method that only relies on physical dimensions has obvious limitations. It cannot fully reflect the operating performance of the impeller under actual working conditions, such as the dynamic response ability of the impeller under different water flow speeds, pressure changes and long-term operating environments.

[0004] The inventors have found that in order to accurately evaluate the working efficiency of the impeller, the impeller is generally assembled into a complete water meter device, and then a series of complex whole-machine tests are performed to check whether it meets the design requirements. However, this evaluation method that relies on whole-machine testing is not only time-consuming and labor-intensive, but also difficult to conduct effective pre-evaluation before the impeller enters the final assembly stage. Summary of the invention

[0005] The object of the present invention is to provide a method and device for evaluating impeller quality, so as to alleviate the technical problems of low efficiency and limited accuracy of impeller evaluation.

[0006] In a first aspect, the present invention provides a method for evaluating impeller quality, comprising:

[0007] Based on the preset parameters of the impeller to be tested, the vertically upward bell-mouthed pipe is controlled to output a conical water flow, so that the impeller to be tested is in a target suspension state in the conical water flow; wherein the target suspension state is used to simulate the operating state of the impeller to be tested under actual working conditions;

[0008] Testing the balance, sinking amount and swinging condition of the impeller to be tested which is in the target suspension state;

[0009] Based on the detection result, the quality of the impeller to be tested is evaluated.

[0010] In an optional embodiment, the step of controlling the vertically upward bell-mouthed pipe to output a conical water flow based on preset parameters of the impeller to be tested includes:

[0011] Obtain the geometric parameters, angle of attack, and weight of the current impeller to be measured, and calculate the suspension lift and gravity of the current impeller to be measured respectively;

[0012] Establish an equivalent relationship between the suspension lift and gravity of the current impeller to be measured, and determine the target flow rate;

[0013] According to the target flow rate, control the vertically upward flared pipe to output a conical water flow.

[0014] In an alternative embodiment, the steps of obtaining the geometric parameters, angle of attack, and weight of the current impeller to be measured, and calculating the suspension lift and gravity of the current impeller to be measured respectively, include:

[0015] Calculate the gravity of the current impeller to be measured based on the weight of the current impeller to be measured;

[0016] According to the geometric parameters of the current impeller to be measured, determine the geometric shape and effective projected area of the current impeller to be measured;

[0017] Based on the geometric shape and angle of attack, determine the lift coefficient of the current impeller to be measured;

[0018] Based on the lift coefficient, the effective projected area, and the density and velocity of the conical water flow output by the vertically upward flared pipe, calculate the suspension lift of the current impeller to be measured.

[0019] In an alternative embodiment, the steps of controlling the vertically upward flared pipe to output a conical water flow based on the preset parameters of the current impeller to be measured, include:

[0020] Obtain the weight of the current impeller to be measured, and calculate the gravity of the current impeller to be measured;

[0021] Based on a preset fluid simulation software, simulate the conical water flow output by the vertically upward flared pipe, and analyze the suspension lift at different flow rates:

[0022] From the multiple suspension lifts corresponding to different flow rates, find the target suspension lift equivalent to the gravity of the current impeller to be measured, and determine the target flow rate corresponding to the target suspension lift;

[0023] According to the target flow rate, control the vertically upward flared pipe to output a conical water flow.

[0024] In an alternative embodiment, the steps of detecting the balance, sinking amount, and swinging condition of the current impeller to be measured in the target suspension state, include:

[0025] Detect the rotational offset of the current impeller to be measured in the target suspension state, and determine whether the balance of the current impeller to be measured meets the requirements;

[0026] Detect the sinking distance of the current impeller to be measured in the target suspended state within a preset time, and determine whether the sinking amount of the current impeller to be measured meets the requirements;

[0027] Detect the swing amplitude of the current impeller to be measured in the target suspended state, and determine whether the swing condition of the current impeller to be measured meets the requirements.

[0028] In an alternative embodiment, the step of evaluating the quality of the current impeller to be measured based on the detection results includes:

[0029] If the balance, sinking amount, and swing amplitude of the current impeller to be measured all meet the corresponding preset requirements, the quality evaluation of the current impeller to be measured passes;

[0030] If the balance, sinking amount, or swing amplitude of the current impeller to be measured does not meet the corresponding preset requirements, the quality evaluation of the current impeller to be measured fails.

[0031] In an alternative embodiment, the method further includes:

[0032] For the current impeller to be measured whose quality evaluation fails, adjust the blade inclination angle, curvature, or number, and optimize the edge shape of the blade.

[0033] In a second aspect, the present invention provides an evaluation device for the quality of an impeller, including:

[0034] A control module that controls a vertically upward flared pipe to output a conical water flow based on preset parameters of the current impeller to be measured, so that the current impeller to be measured is in a target suspended state in the conical water flow; wherein, the target suspended state is used to simulate the operating state of the impeller to be measured under actual working conditions;

[0035] A detection module that detects the balance, sinking amount, and swing condition of the current impeller to be measured in the target suspended state;

[0036] An evaluation module that evaluates the quality of the current impeller to be measured based on the detection results.

[0037] In a third aspect, the present invention provides an electronic device, including a memory, a processor, and a program stored on the memory and capable of running on the processor. When the processor executes the program, the method described in any one of the foregoing embodiments is implemented.

[0038] In a fourth aspect, the present invention provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed, the method described in any one of the foregoing embodiments is implemented.

[0039] The embodiments of the present invention provide a method and device for evaluating the quality of an impeller, which controls the flow rate of the conical water flow output from the vertically upward bell-mouthed pipe according to the preset parameters of the current impeller to be tested, so that the impeller to be tested can present a target suspension state under actual working conditions in the conical water flow at this flow rate; on this basis, the balance, sinking amount and swing of the impeller to be tested are tested, and more accurate test results can be obtained. That is, based on such test results, the quality of the impeller can be more accurately evaluated, so as to select qualified impellers for use in water meters, thereby ensuring the measurement accuracy and safety of the water meters.

[0040] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A flow chart of an impeller quality assessment method provided by an embodiment of the present invention;

[0044] Figure 2 A schematic diagram of functional modules of an impeller quality assessment device provided by an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the hardware architecture of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Currently, before the impeller enters the final assembly stage, there is no efficient and direct pre-evaluation system or method in the industry for quickly identifying the actual working performance of the impeller. This current situation not only restricts the improvement of production efficiency but also affects the stability and reliability of product quality to a certain extent. Especially during large-scale production, the lack of effective pre-evaluation means may lead to a large number of unqualified impellers flowing into subsequent production links, thereby increasing production costs and quality risks.

[0048] Based on this, an evaluation method and device for the quality of an impeller provided by an embodiment of the present invention can evaluate the quality of the impeller, a key component of a water meter, in a relatively simple manner while ensuring the accuracy of the evaluation.

[0049] To facilitate the understanding of this embodiment, first, a detailed introduction to an evaluation method for the quality of an impeller disclosed by an embodiment of the present invention will be given. This method can be applied to intelligent control devices such as a host computer, a controller, and a server.

[0050] Figure 1 It is a flowchart of an evaluation method for the quality of an impeller provided by an embodiment of the present invention.

[0051] Referring to Figure 1 , this method can be implemented through the following steps:

[0052] Step S102, controlling a vertically upward flared pipe to output a conical water flow based on the preset parameters of the currently measured impeller, so that the currently measured impeller is in a target suspension state in the conical water flow.

[0053] Among them, the target suspension state is used to simulate the operating state of the measured impeller under actual working conditions.

[0054] Here, in an embodiment of the present invention, a conical water flow formed by a vertically upward flared pipe can be used for the effective detection of a water meter impeller without support, without the need to apply other supporting appliances, which is relatively simple; in addition, an embodiment of the present invention can also be applicable to the quality evaluation of various types of impellers, while the traditional method based on appliance evaluation needs to set corresponding appliances for each type of impeller, and different types of impellers are evaluated for quality through different appliances, which is costly and also requires additional time.

[0055] It should be noted that through a vertically upward flared pipe, the water flow forms a conical flow state in the pipe, that is, a conical water flow is formed, and the conical water flow jets vertically upward from the pipe orifice; this conical water flow helps the impeller to be suspended in the water flow and remain stable in the suspension state at this time, which is convenient for detection; among them, the flow rate of the water flow can be controlled so that the impeller is in a target suspension state in the conical water flow. The impeller in the target suspension state can rotate freely and is uniformly affected by the water flow, and the impeller detection result in this state is more accurate.

[0056] Step S104, detect the balance, sinking amount, and swinging condition of the current impeller under test in the target floating state.

[0057] Here, by suspending the impeller in the water flow, there is no need for additional assembly equipment for the impeller, and it is possible to more accurately detect the balance, sinking amount, and swinging condition of the impeller, and then screen out qualified impellers.

[0058] Step S106, evaluate the quality of the current impeller under test based on the detection results.

[0059] Here, according to the impeller detection results, select qualified impellers for use in water meters.

[0060] In a preferred embodiment of actual application, control the flow rate of the conical water flow output by the vertically upward flared pipe according to the preset parameters of the current impeller under test, so that the impeller under test can be in the target floating state under actual working conditions in this conical water flow with this flow rate; on this basis, then detect the balance, sinking amount, and swinging condition of this impeller under test, and more accurate detection results can be obtained, that is, based on such detection results, the quality of the impeller can be more accurately evaluated, so as to select qualified impellers for use in water meters and ensure the measurement accuracy and use safety of the water meter.

[0061] In some embodiments, step S102 can control the flow rate of the conical water flow in the following manner, so that the current impeller under test is in the target floating state in the conical water flow, including:

[0062] Step 1.1), obtain the geometric parameters, angle of attack, and weight of the current impeller under test, and calculate the suspension lift and gravity of the current impeller under test respectively.

[0063] Exemplarily, first, calculate the gravity of the current impeller under test based on the weight of the current impeller under test; secondly, determine the geometric shape and effective projected area of the current impeller under test according to the geometric parameters of the current impeller under test; thirdly, determine the lift coefficient of the current impeller under test based on the geometric shape and angle of attack; finally, calculate the suspension lift of the current impeller under test based on the lift coefficient, effective projected area, and the density and velocity of the conical water flow output by the vertically upward flared pipe.

[0064] Among them, the suspension lift F of the current impeller under test can be calculated by the following formula lift :

[0065]

[0066] Among them, ρ is the fluid density, v is the water flow velocity, C L is the lift coefficient, and A is the effective projected area of the impeller.

[0067] Step 1.2), establish an equivalent relationship between the suspension lift and the gravity of the current impeller to be measured, and determine the target flow rate.

[0068] Here, establish F y the gravity of the impeller and the suspension lift F lift of the equivalent equation, and then calculate the target flow rate v of the water flow.

[0069] Step 1.3), according to the target flow rate, control the vertical upward flared pipe to output a conical water flow.

[0070] On the basis of the foregoing embodiment, control the conical water flow according to the target flow rate V, so that the flow rate of the conical water flow reaches the target flow rate.

[0071] As an alternative embodiment, step S102 can also control the conical water flow in the following manner, including:

[0072] Step 2.1), obtain the weight of the current impeller to be measured, and calculate the gravity of the current impeller to be measured.

[0073] Step 2.2), based on the preset fluid simulation software, simulate the conical water flow output by the vertical upward flared pipe, and analyze the suspension lift at different flow rates.

[0074] Among them, the preset fluid simulation software can select Ansys Fluent fluid simulation software. At this time, the suspension lift corresponding to a variety of different flow rates can be obtained.

[0075] Step 2.3), from the variety of suspension lifts corresponding to different flow rates, find the target suspension lift equivalent to the gravity of the current impeller to be measured, and determine the target flow rate corresponding to the target suspension lift.

[0076] Here, according to the gravity of the current impeller to be measured, find the same target suspension lift, and the flow rate value corresponding to the target suspension lift is the target flow rate.

[0077] Step 2.4), according to the target flow rate, control the vertical upward flared pipe to output a conical water flow.

[0078] On the basis of the foregoing embodiment, control the conical water flow according to the target flow rate V, so that the flow rate of the conical water flow reaches the target flow rate.

[0079] In some embodiments, in the case where the impeller is in the target suspension state, step S104 detects from aspects such as balance, sinking amount and swinging condition, specifically including:

[0080] Step 3.1), detect the rotational offset of the current impeller to be measured in the target suspension state, and judge whether the balance of the current impeller to be measured meets the requirements.

[0081] Exemplarily, detect the rotation of the impeller in the target suspended state and determine whether it remains stable. If the impeller shows obvious shaking or deflection, it indicates that its balance is poor and does not meet the requirements.

[0082] Step 3.2), detect the sinking distance of the current impeller to be measured in the target suspended state within a preset time, and determine whether the sinking amount of the current impeller to be measured meets the requirements.

[0083] Exemplarily, within a certain time, detect the sinking distance of the impeller in the water flow. If the sinking amount is too large, it may mean that the weight distribution of the impeller is uneven or there is a problem with the material, which does not meet the requirements.

[0084] Step 3.3) Detect the swing amplitude of the current impeller to be measured in the target suspended state, and determine whether the swing condition of the current impeller to be measured meets the requirements.

[0085] Exemplarily, detection methods such as using sensors and visual observation can be used to detect the swing amplitude of the impeller in the suspended state. If the swing amplitude is too large, it may indicate that there is an imbalance in the impeller or the water flow is unstable, which does not meet the requirements.

[0086] Based on the foregoing embodiments, step S106 for evaluating the quality of the current impeller to be measured based on the detection results can be implemented through the following steps, specifically including:

[0087] Step 4.1), if the balance, sinking amount, and swing amplitude of the current impeller to be measured all meet the corresponding preset requirements, the quality evaluation of the current impeller to be measured passes.

[0088] Step 4.2), if the balance, sinking amount, or swing amplitude of the current impeller to be measured does not meet the corresponding preset requirements, the quality evaluation of the current impeller to be measured fails.

[0089] Among them, the preset requirements can be understood as the qualified ranges corresponding to the balance, sinking amount, and swing amplitude respectively set according to actual needs and industry standards. In the embodiments of the present invention, the detection results are compared with the preset requirements to determine whether the impeller is qualified. For unqualified impellers, further adjustment or replacement is required.

[0090] At the same time, the qualified impellers are screened and recorded for subsequent use. For unqualified impellers, the problems should be recorded and corresponding measures should be taken for improvement. Exemplarily, the embodiments of the present invention can also optimize and adjust the unqualified impellers through the following methods:

[0091] Step 5.1), for the current impeller to be measured whose quality evaluation fails, adjust the blade inclination angle, curvature or quantity, and optimize the edge shape of the blade.

[0092] Here, the impeller after optimization and adjustment is again subjected to steps S102 - S106 of the embodiment of the present invention. If it is still unqualified, step 5.1) is executed again; this process is repeatedly executed until the quality assessment of the impeller after optimization and adjustment is qualified.

[0093] The embodiment of the present invention provides a method capable of independently and effectively evaluating the performance and quality of an impeller before assembly. This method is characterized by being fast, accurate, and efficient, and can comprehensively evaluate the operating performance of the impeller under actual working conditions in the stage after the impeller is manufactured and before assembly. By screening out unqualified impellers in advance, not only can the overall quality of the water meter be significantly improved. In addition, the introduction of this method will also bring innovative changes to the water meter manufacturing industry, promoting the industry to develop in the direction of higher efficiency and higher quality.

[0094] In some embodiments, as Figure 2 shown, the embodiment of the present invention provides an evaluation device for the quality of an impeller, including:

[0095] A control module that controls a vertically upward flared pipe to output a conical water flow based on preset parameters of the current impeller to be measured, so that the current impeller to be measured is in a target suspended state in the conical water flow; wherein, the target suspended state is used to simulate the operating state of the impeller to be measured under actual working conditions;

[0096] A detection module that detects the balance, sinking amount, and swinging condition of the current impeller to be measured in the target suspended state;

[0097] An evaluation module that evaluates the quality of the current impeller to be measured based on the detection results.

[0098] Further, the control module is used to obtain the geometric parameters, angle of attack, and weight of the current impeller to be measured, and respectively calculate the suspension lift and gravity of the current impeller to be measured; establish an equivalence relationship between the suspension lift and gravity of the current impeller to be measured, and determine the target flow rate; according to the target flow rate, control the vertically upward flared pipe to output a conical water flow.

[0099] Further, the control module is used to calculate the gravity of the current impeller to be measured based on the weight of the current impeller to be measured; determine the geometric shape and effective projected area of the current impeller to be measured according to the geometric parameters of the current impeller to be measured; determine the lift coefficient of the current impeller to be measured based on the geometric shape and angle of attack; calculate the suspension lift of the current impeller to be measured based on the lift coefficient, the effective projected area, and the density and velocity of the conical water flow output by the vertically upward flared pipe.

[0100] Further, the control module is configured to obtain the weight of the current impeller to be measured, calculate the gravity of the current impeller to be measured; simulate the conical water flow output by the vertically upward flared pipe based on a preset fluid simulation software, and analyze the suspension lift at different flow rates: from multiple suspension lifts corresponding to different flow rates, search for the target suspension lift equivalent to the gravity of the current impeller to be measured, and determine the target flow rate corresponding to the target suspension lift; control the vertically upward flared pipe to output a conical water flow according to the target flow rate.

[0101] Further, the detection module is configured to detect the rotational offset of the current impeller to be measured in the target suspension state, and determine whether the balance of the current impeller to be measured meets the requirements; detect the sinking distance of the current impeller to be measured in the target suspension state within a preset time, and determine whether the sinking amount of the current impeller to be measured meets the requirements; detect the swing amplitude of the current impeller to be measured in the target suspension state, and determine whether the swing condition of the current impeller to be measured meets the requirements.

[0102] Further, the evaluation module is configured to: if the balance, sinking amount, and swing amplitude of the current impeller to be measured all meet the corresponding preset requirements, the quality evaluation of the current impeller to be measured passes; if the balance, sinking amount, or swing amplitude of the current impeller to be measured does not meet the corresponding preset requirements, the quality evaluation of the current impeller to be measured fails.

[0103] Further, the device is further configured to adjust the blade inclination angle, curvature, or number of the current impeller to be measured with a failed quality evaluation, and optimize the edge shape of the blade.

[0104] The embodiment of the present invention provides an electronic device for implementing a method. In this embodiment, the electronic device may be, but is not limited to, a computer device with analysis and processing capabilities such as a personal computer (PC), a laptop computer, a monitoring device, a server, etc.

[0105] As an exemplary embodiment, reference may be made to Figure 3 , the electronic device 110 includes a communication interface 111, a processor 112, a memory 113, and a bus 114. The processor 112, the communication interface 111, and the memory 113 are connected through the bus 114; the memory 113 is used to store a computer program that supports the processor 112 to execute the above method, and the processor 112 is configured to execute the program stored in the memory 113.

[0106] The machine-readable storage medium mentioned in this document can be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and so on. For example, the machine-readable storage medium can be: RAM (Random Access Memory), volatile memory, non-volatile memory, flash memory, storage drives (such as hard disk drives), any type of storage disk (such as optical discs, DVDs, etc.), or similar storage media, or a combination thereof.

[0107] The non-volatile medium can be non-volatile memory, flash memory, storage drives (such as hard disk drives), any type of storage disk (such as optical discs, DVDs, etc.), or similar non-volatile storage media, or a combination thereof.

[0108] It can be understood that the specific operation methods of the functional modules in this embodiment can refer to the detailed descriptions of the corresponding steps in the above method embodiment, and will not be repeated here.

[0109] The computer-readable storage medium provided by the embodiment of the present invention stores a computer program in the readable storage medium. When the computer program code is executed, the method described in any of the above embodiments can be implemented. For the specific implementation, refer to the method embodiment and will not be elaborated here.

[0110] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems and devices described above can refer to the corresponding processes in the foregoing method embodiments and will not be repeated here.

[0111] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0112] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0113] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the technical field of the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention.

Claims

1. A method for evaluating the quality of an impeller, characterized in that, Including: Controlling a vertically upward flared pipe to output a conical water flow based on preset parameters of the current impeller to be tested, so that the current impeller to be tested is in a target suspended state in the conical water flow; wherein, the target suspended state is used to simulate the operating state of the impeller to be tested under actual working conditions; Detecting the balance, sinking amount and swinging condition of the current impeller to be tested in the target suspended state; Evaluating the quality of the current impeller to be tested based on the detection results.

2. The method according to claim 1, wherein The step of controlling a vertically upward flared pipe to output a conical water flow based on preset parameters of the current impeller to be tested includes: Obtaining the geometric parameters, angle of attack and weight of the current impeller to be tested, and respectively calculating the suspension lift and gravity of the current impeller to be tested; Establishing an equivalence relationship between the suspension lift and gravity of the current impeller to be tested, and determining the target flow rate; Controlling a vertically upward flared pipe to output a conical water flow according to the target flow rate.

3. The method according to claim 2, wherein The step of obtaining the geometric parameters, angle of attack and weight of the current impeller to be tested, and respectively calculating the suspension lift and gravity of the current impeller to be tested includes: Calculating the gravity of the current impeller to be tested based on the weight of the current impeller to be tested; Determining the geometric shape and effective projected area of the current impeller to be tested according to the geometric parameters of the current impeller to be tested; Determining the lift coefficient of the current impeller to be tested based on the geometric shape and angle of attack; Calculating the suspension lift of the current impeller to be tested based on the lift coefficient, the effective projected area, and the density and velocity of the conical water flow output by the vertically upward flared pipe.

4. The method according to claim 1, wherein The step of controlling a vertically upward flared pipe to output a conical water flow based on preset parameters of the current impeller to be tested includes: Obtaining the weight of the current impeller to be tested, and calculating the gravity of the current impeller to be tested; Simulating the conical water flow output by the vertically upward flared pipe based on preset fluid simulation software, and analyzing the suspension lift at different flow rates: Searching for a target suspension lift equivalent to the gravity of the current impeller to be tested from various suspension lifts corresponding to different flow rates, and determining the target flow rate corresponding to the target suspension lift; Controlling a vertically upward flared pipe to output a conical water flow according to the target flow rate.

5. The method according to claim 1, characterized in that The step of detecting the balance, sinking amount and swinging condition of the current impeller to be tested in the target suspended state includes: Detecting the rotational offset of the current impeller to be tested in the target suspended state, and judging whether the balance of the current impeller to be tested meets the requirements; Detecting the sinking distance of the current impeller to be tested in the target suspended state within a preset time, and judging whether the sinking amount of the current impeller to be tested meets the requirements; Detecting the swinging amplitude of the current impeller to be tested in the target suspended state, and judging whether the swinging condition of the current impeller to be tested meets the requirements.

6. The method according to claim 1, wherein The step of evaluating the quality of the current impeller to be tested based on the detection results includes: If the balance, sinking amount and swinging amplitude of the current impeller to be tested all meet the corresponding preset requirements, the quality evaluation of the current impeller to be tested passes; If the balance, sinking amount or swinging amplitude of the current impeller to be tested does not meet the corresponding preset requirements, the quality evaluation of the current impeller to be tested fails.

7. The method according to claim 6, characterized in that The method further includes: For the current impeller under test that fails the quality assessment, adjust the blade inclination angle, curvature or quantity, and optimize the edge shape of the blade.

8. An evaluation device for the mass of an impeller, characterized in that, It includes: A control module that controls the flared pipe outputting conical water flow vertically upward based on the preset parameters of the current impeller under test, so that the current impeller under test is in a target suspension state in the conical water flow; wherein, the target suspension state is used to simulate the operating state of the impeller under test under actual working conditions; A detection module that detects the balance, sinking amount and swinging condition of the current impeller under test in the target suspension state; An evaluation module that evaluates the quality of the current impeller under test based on the detection results.

9. An electronic device, characterized in that, It includes a memory, a processor, and a program stored on the memory and capable of running on the processor. When the processor executes the program, it implements the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored in the readable storage medium, and when the computer program is executed, it implements the method according to any one of claims 1 - 7.

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