A method and system for testing flow capacity of a conical valve

Abstract

The application provides a conical valve flow capacity test method and system, and relates to the technical field of conical valve flow capacity test.The method comprises the following steps: obtaining a test opening value corresponding to a conical valve; at a test initial moment corresponding to each opening value, target pressure regulation is performed on the inlet pressure and outlet pressure of the conical valve, test operation and data recording are started, first data information is obtained; the outlet pressure of the conical valve is increased until cavitation cavities in the conical valve disappear, and second data information is obtained; the inlet pressure of the conical valve is increased, and third data information under the inlet pressure increase state of the conical valve is recorded; the flow capacity of the conical valve is evaluated according to the first data information, the second data information and the third data information, and an evaluation result is obtained.The performance stability and reliability of the conical valve can be improved by evaluating and improving the flow capacity of the conical valve, so that the quality of the product is improved.

Description

TECHNICAL FIELD

[0001] The application provides a conical valve flow capacity test method and system, and relates to the technical field of flow capacity test, in particular to the technical field of conical valve flow capacity test. BACKGROUND

[0002] In a fluid control system, the conical valve is a common control element, and the stability and reliability of its performance are crucial to the operation of the entire system. The flow capacity of the conical valve, that is, its control ability of fluid flow and pressure under different working conditions, is one of the important indicators to measure its performance. However, in actual application, the flow capacity of the conical valve is often affected by many factors, such as the opening of the conical valve, the flow rate of the fluid, the pressure, etc. due to the complexity of the fluid properties and the diversity of the working environment. In order to accurately evaluate the flow capacity of the conical valve, the traditional test method usually needs to test the conical valve under different working conditions for many times, and record the relevant data parameters. However, this method has the following disadvantages: first, the test process is tedious, which needs to consume a lot of time and manpower; second, due to the complexity and uncontrollability of the test environment, the accuracy and reliability of the test results are difficult to guarantee; finally, for the processing and analysis of the test data, there is a lack of scientific and effective methods and means, and it is difficult to obtain accurate evaluation results. SUMMARY

[0003] The application provides a conical valve flow capacity test method and system, which solves the problem that in actual application, the flow capacity of the conical valve is often affected by many factors, such as the opening of the conical valve, the flow rate of the fluid, the pressure, etc. due to the complexity of the fluid properties and the diversity of the working environment. In order to accurately evaluate the flow capacity of the conical valve, the traditional test method usually needs to test the conical valve under different working conditions for many times, and record the relevant data parameters. However, this method has the following disadvantages: the test process is tedious, which needs to consume a lot of time and manpower, the accuracy and reliability of the test results are difficult to guarantee, for the processing and analysis of the test data, there is a lack of scientific and effective methods and means, and it is difficult to obtain accurate evaluation results.

[0004] The application provides a conical valve flow capacity test method and system, which solves the problem that in actual application, the flow capacity of the conical valve is often affected by many factors, such as the opening of the conical valve, the flow rate of the fluid, the pressure, etc. due to the complexity of the fluid properties and the diversity of the working environment. In order to accurately evaluate the flow capacity of the conical valve, the traditional test method usually needs to test the conical valve under different working conditions for many times, and record the relevant data parameters. However, this method has the following disadvantages: the test process is tedious, which needs to consume a lot of time and manpower, the accuracy and reliability of the test results are difficult to guarantee, for the processing and analysis of the test data, there is a lack of scientific and effective methods and means, and it is difficult to obtain accurate evaluation results.

[0005] The test requirement information is extracted, and the test opening value corresponding to the conical valve is obtained according to the test requirement information;

[0006] At the test initial moment corresponding to each opening value, the target pressure regulation is performed on the inlet pressure and the outlet pressure of the conical valve, the test operation and data recording are started, and the first data information is obtained;

[0007] increasing the outlet pressure of the conical valve until cavitation bubbles in the cavity of the conical valve disappear, and obtaining second data information;

[0008] increasing the inlet pressure of the conical valve and recording third data information of the conical valve in the state of the increased inlet pressure of the conical valve;

[0009] evaluating the flow capacity of the conical valve according to the first data information, the second data information and the third data information, and obtaining an evaluation result.

[0010] Further, at a test initial moment corresponding to each opening value, target pressure adjustment is performed on the inlet pressure and the outlet pressure of the conical valve, and test operation and data recording are started to obtain the first data information, including:

[0011] extracting a test opening value of the conical valve corresponding to the current test;

[0012] obtaining a target inlet pressure value and a target outlet pressure value of the conical valve according to the test opening value of the conical valve;

[0013] adjusting the inlet pressure of the conical valve to the target inlet pressure value; wherein the target inlet pressure value is obtained by the following formula:

[0014] P mr =P min -α·(P max -P min )

[0015] wherein P mr represents the target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to the rated working pressure range of the conical valve; and α represents a first adjustment coefficient, and the first adjustment coefficient is obtained by the following formula:

[0016]

[0017] wherein ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents an opening value corresponding to full opening of the conical valve; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to the rated working pressure range of the conical valve;

[0018] adjusting the outlet pressure of the conical valve to the target outlet pressure value; wherein the target outlet pressure value is obtained by the following formula:

[0019] Pmc = (1 + β) · P min

[0020] wherein P mc represents a target outlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; β represents a second adjustment coefficient; and the second adjustment coefficient is obtained by the following formula:

[0021]

[0022] wherein P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to a rated working pressure range of the conical valve; P mr represents a target inlet pressure value;

[0023] When the test operation is stable, the vibration signal and cavitation image under the stable test operation condition are collected, and the current inlet and outlet pressure and flow data of the conical valve are recorded;

[0024] The vibration signal and cavitation image and the inlet and outlet pressure and flow data of the conical valve are taken as the first data information.

[0025] Further, the outlet pressure of the conical valve is increased until the cavitation bubbles in the cavity of the conical valve disappear, and the second data information is obtained, including:

[0026] The target inlet pressure and target outlet pressure are extracted;

[0027] The test opening value of the conical valve corresponding to the current test is extracted;

[0028] According to the test opening value of the conical valve combined with the target inlet pressure and target outlet pressure, the upper limit value and lower limit value of the pressure adjustment gradient corresponding to single pressure adjustment in the outlet pressure increasing process of the conical valve are obtained; wherein the upper limit value and lower limit value of the pressure adjustment gradient of the outlet pressure increasing of the conical valve are obtained by the following formula:

[0029]

[0030] wherein P cup represents the upper limit value of the pressure adjustment gradient of the outlet pressure increasing of the conical valve; P mc represents a target outlet pressure value; P mr represents a target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; α represents a first adjustment coefficient; and β represents a second adjustment coefficient;

[0031]

[0032] wherein P cdown represents a lower limit value of the pressure regulating gradient; P mc represents a target outlet pressure value; P mr represents a target inlet pressure value; P cup represents an upper limit value of the pressure regulating gradient;

[0033] setting the pressure regulating gradient according to the upper limit value and the lower limit value of the pressure gradient of the outlet pressure rise of the conical valve;

[0034] adjusting the outlet pressure of the conical valve according to the pressure regulating gradient until the cavitation cavities in the cavity of the conical valve disappear;

[0035] collecting vibration signals and cavitation images and inlet and outlet pressure and flow data of the conical valve under the condition that the cavitation cavities disappear as second data information.

[0036] Further, increasing the inlet pressure of the conical valve and recording third data information under the condition that the inlet pressure of the conical valve is increased, including:

[0037] extracting test requirement information;

[0038] obtaining first, second and third outlet test pressures corresponding to the conical valve according to the test requirement information;

[0039] setting first, second and third pressure increasing gradient ranges corresponding to the inlet pressure of the conical valve according to the first, second and third outlet test pressures;

[0040] setting a first pressure increasing gradient according to the first pressure increasing gradient range and increasing the inlet pressure of the conical valve according to the first pressure increasing gradient until the outlet pressure of the conical valve reaches the first outlet test pressure, and recording vibration signals and cavitation images and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the first outlet test pressure;

[0041] setting a second pressure increasing gradient according to the second pressure increasing gradient range and increasing the inlet pressure of the conical valve according to the second pressure increasing gradient until the outlet pressure of the conical valve reaches the second outlet test pressure, and recording vibration signals and cavitation images and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the second outlet test pressure;

[0042] According to the third pressure boosting gradient range, a third pressure boosting gradient is set, and the inlet pressure of the conical valve is increased according to the third pressure boosting gradient until the outlet pressure of the conical valve reaches a third outlet test pressure, and vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the third outlet test pressure are recorded;

[0043] The vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the first outlet test pressure, the vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the second outlet test pressure, and the vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the second outlet test pressure are taken as third data information.

[0044] Further, the first pressure boosting gradient range, the second pressure boosting gradient range, and the third pressure boosting gradient range are obtained by the following formula:

[0045]

[0046] wherein P rup01 represents the upper limit value corresponding to the first pressure boosting gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P cup represents the upper limit value of the pressure adjustment gradient of the outlet pressure of the conical valve;

[0047]

[0048] wherein P rdown01 represents the lower limit value corresponding to the first pressure boosting gradient range; P rup01 represents the upper limit value corresponding to the first pressure boosting gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P rup01 represents the upper limit value corresponding to the first pressure boosting gradient range;

[0049]

[0050] wherein P rup02 represents the upper limit value corresponding to the second pressure boosting gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; Pmr represents a target inlet pressure value; P mc represents a target outlet pressure value; P c01 represents a first outlet test pressure; P c02 represents a second outlet test pressure; P rup01 represents an upper limit value corresponding to the first pressure gradient range; P

[0051]

[0052] wherein, P rdown02 represents a lower limit value corresponding to the second pressure gradient range; P rup02 represents an upper limit value corresponding to the second pressure gradient range; ω c represents a test opening value of the cone valve corresponding to the current test; ω e represents an opening value corresponding to the full opening of the cone valve;

[0053]

[0054] wherein, P rup03 represents an upper limit value corresponding to the third pressure gradient range; P rup01 represents an upper limit value corresponding to the first pressure gradient range; P rup02 represents an upper limit value corresponding to the second pressure gradient range; ω c represents a test opening value of the cone valve corresponding to the current test; ω e represents an opening value corresponding to the full opening of the cone valve;

[0055]

[0056] wherein, P rdown03 represents a lower limit value corresponding to the third pressure gradient range; P rup03 represents an upper limit value corresponding to the third pressure gradient range; ω c represents a test opening value of the cone valve corresponding to the current test; ω e represents an opening value corresponding to the full opening of the cone valve.

[0057] Further, the cone valve flow capacity test system comprises:

[0058] an opening value extraction module, configured to extract test requirement information, and acquire a test opening value of the cone valve according to the test requirement information;

[0059] a first data acquisition module, configured to, at a test initial time corresponding to each opening value, perform target pressure adjustment on an inlet pressure and an outlet pressure of the cone valve, start test running and data recording, and acquire first data information;

[0060] a second data acquisition module, configured to increase the outlet pressure of the conical valve until cavitation bubbles in the cavity of the conical valve disappear, and acquire second data information;

[0061] a third data acquisition module, configured to increase the inlet pressure of the conical valve and record third data information of the conical valve in the state of the increased inlet pressure;

[0062] a capability evaluation module, configured to evaluate the flow capacity of the conical valve according to the first data information, the second data information and the third data information, and obtain an evaluation result.

[0063] Further, the first data acquisition module comprises:

[0064] a test opening value extraction module, configured to extract a test opening value of the conical valve corresponding to the current test;

[0065] a pressure value acquisition module, configured to acquire a target inlet pressure value and a target outlet pressure value of the conical valve according to the test opening value of the conical valve;

[0066] an inlet pressure adjustment calculation module, configured to adjust the inlet pressure of the conical valve to the target inlet pressure value; wherein the target inlet pressure value is acquired by the following formula:

[0067] P mr inlet pressure value min = P max - α · (P min - P )

[0068] wherein P mr represents the target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to the rated working pressure range of the conical valve; and α represents a first adjustment coefficient; and the first adjustment coefficient is acquired by the following formula:

[0069]

[0070] wherein ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents an opening value corresponding to full opening of the conical valve; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve;

[0071] an outlet pressure adjustment calculation module, configured to adjust the outlet pressure of the conical valve to a target outlet pressure value; wherein the target outlet pressure value is acquired by the following formula:

[0072] P mc = (1 + β) · P min

[0073] wherein, P mc represents the target outlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; β represents the second adjustment coefficient; and the second adjustment coefficient is obtained by the following formula:

[0074]

[0075] wherein, P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; P mr represents the target inlet pressure value;

[0076] a data recording module, configured to collect vibration signals and cavitation images under the working condition when the test is stable, and record the current inlet and outlet pressure and flow data of the conical valve when the test is stable;

[0077] the vibration signals and cavitation images and the inlet and outlet pressure and flow data of the conical valve as the first data information.

[0078] Further, the second data acquisition module comprises:

[0079] a pressure extraction module, configured to extract the target inlet pressure and the target outlet pressure;

[0080] a test opening value extraction module, configured to extract the test opening value of the conical valve corresponding to the current test;

[0081] a limit value adjustment calculation module, configured to obtain the upper limit value and the lower limit value of the pressure adjustment gradient corresponding to a single pressure adjustment in the outlet pressure rising process of the conical valve according to the test opening value of the conical valve combined with the target inlet pressure and the target outlet pressure; wherein the upper limit value and the lower limit value of the pressure adjustment gradient of the outlet pressure rising of the conical valve are obtained by the following formula:

[0082]

[0083] wherein, P cup represents the upper limit value of the pressure adjustment gradient of the outlet pressure rising of the conical valve; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P minrepresents the minimum working pressure corresponding to the rated working pressure range of the conical valve; a represents a first adjustment coefficient; and β represents a second adjustment coefficient;

[0084]

[0085] wherein, P cdown represents the lower limit value of the pressure adjustment gradient; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P cup represents the upper limit value of the pressure adjustment gradient;

[0086] a gradient setting module, configured to set a pressure adjustment gradient according to the upper limit value and the lower limit value of the pressure gradient of the outlet pressure rise of the conical valve;

[0087] a rise adjustment module, configured to perform rise adjustment on the outlet pressure of the conical valve according to the pressure adjustment gradient until the cavitation bubble in the cavity of the conical valve disappears;

[0088] a second acquisition module, configured to acquire the vibration signal and the cavitation image under the condition that the cavitation bubble in the cavity disappears, and the inlet and outlet pressure and flow data of the conical valve as second data information.

[0089] Further, the third data acquisition module comprises:

[0090] a test pressure acquisition module, configured to extract test requirement information;

[0091] acquire, according to the test requirement information, a first outlet test pressure, a second outlet test pressure and a third outlet test pressure corresponding to the conical valve;

[0092] a range setting module, configured to set, according to the first outlet test pressure, the second outlet test pressure and the third outlet test pressure, a first pressure-increase gradient range, a second pressure-increase gradient range and a third pressure-increase gradient range corresponding to the inlet pressure of the conical valve;

[0093] a first test recording module, configured to set a first pressure-increase gradient according to the first pressure-increase gradient range, and increase the inlet pressure of the conical valve according to the first pressure-increase gradient until the outlet pressure of the conical valve reaches the first outlet test pressure, and record the vibration signal, the cavitation image and the inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the first outlet test pressure;

[0094] a second test recording module, configured to set a second pressure-increase gradient according to the second pressure-increase gradient range, and increase the inlet pressure of the conical valve according to the second pressure-increase gradient until the outlet pressure of the conical valve reaches the second outlet test pressure, and record the vibration signal, the cavitation image and the inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the second outlet test pressure.

[0095] a third test recording module, configured to set a third pressure increasing gradient according to the third pressure increasing gradient range, and increase the inlet pressure of the conical valve according to the third pressure increasing gradient until the outlet pressure of the conical valve reaches a third outlet test pressure, and record the vibration signal and cavitation image and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the third outlet test pressure;

[0096] a third acquisition module, configured to acquire the vibration signal and cavitation image and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the first outlet test pressure, the vibration signal and cavitation image and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the second outlet test pressure, and the vibration signal and cavitation image and inlet and outlet pressure values when the outlet pressure of the conical valve reaches the third outlet test pressure as third data information.

[0097] Further, the range setting module comprises:

[0098] a first upper limit calculation module, configured to calculate an upper limit value corresponding to the first pressure increasing gradient range;

[0099]

[0100] wherein, P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P cup represents the upper limit value of the pressure regulating gradient of the outlet pressure of the conical valve;

[0101] a first lower limit calculation module, configured to calculate a lower limit value corresponding to the first pressure increasing gradient range;

[0102]

[0103] wherein, P rdown01 represents the lower limit value corresponding to the first pressure increasing gradient range; P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range;

[0104] a second upper limit calculation module configured to calculate an upper limit value corresponding to a second boost gradient range;

[0105]

[0106] wherein P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents a test opening value of the conical valve corresponding to the current test; ω e represents an opening value corresponding to full opening of the conical valve; P mr represents a target inlet pressure value; P mc represents a target outlet pressure value; P c01 represents a first outlet test pressure; P c02 represents a second outlet test pressure; P rup01 represents an upper limit value corresponding to a first boost gradient range;

[0107] a second lower limit calculation module configured to calculate a lower limit value corresponding to the second boost gradient range;

[0108]

[0109] wherein P rdown02 represents the lower limit value corresponding to the second boost gradient range; P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents an opening value corresponding to full opening of the conical valve;

[0110] a third upper limit calculation module configured to calculate an upper limit value corresponding to a third boost gradient range;

[0111]

[0112] wherein P rup03 represents the upper limit value corresponding to the third boost gradient range; P rup01 represents the upper limit value corresponding to the first boost gradient range; P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents an opening value corresponding to full opening of the conical valve;

[0113] a third lower limit calculation module configured to calculate a lower limit value corresponding to the third boost gradient range;

[0114]

[0115] wherein P rdown03 represents the lower limit value corresponding to the third boost gradient range; Prup03 represents the upper limit value corresponding to the third boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve.

[0116] The present application has the following advantages: By precisely adjusting the inlet and outlet pressures of the conical valve and recording the working state and related parameters of the conical valve in real time, the accuracy and precision of the test can be improved. By collecting and analyzing the operating data of the conical valve under different opening degrees and different pressure conditions, the flow capacity of the conical valve can be comprehensively evaluated, including flow characteristics, pressure loss, cavitation characteristics, etc. According to the evaluation results, the shortcomings of the conical valve in design and performance can be found out, providing scientific basis for design optimization and performance improvement. By comparing the evaluation results of different conical valves, users can choose the conical valve model and specification that better meets their application requirements. By evaluating and improving the flow capacity of the conical valve, the performance stability and reliability of the conical valve can be improved, thereby improving the quality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0117] Figure 1 is a schematic diagram of a conical valve flow capacity test method;

[0118] Figure 2 is a schematic diagram of a conical valve flow capacity test system. DETAILED DESCRIPTION

[0119] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0120] In one embodiment of the present application, the present application provides a conical valve flow capacity test method and system, which comprises:

[0121] Extracting test requirement information, and obtaining the test opening value of the conical valve corresponding to the test requirement information;

[0122] At the initial test time corresponding to each opening value, the target pressure of the inlet and outlet pressures of the conical valve is adjusted, and the test is started and data is recorded to obtain first data information;

[0123] The outlet pressure of the conical valve is increased until the cavitation bubbles in the cavity of the conical valve disappear, and second data information is obtained;

[0124] The inlet pressure of the conical valve is increased and the third data information of the conical valve under the increased inlet pressure is recorded;

[0125] Evaluate the flow capacity of the conical valve according to the first data information, second data information and third data information, and obtain the evaluation result.

[0126] The working principle of the above technical solution is: the purpose and requirements of the test are clear, and the specific test requirement information related to the evaluation of the flow capacity of the conical valve is extracted, such as the expected test opening range, pressure regulation range, etc. According to the extracted test requirement information, the opening value of the conical valve under different test scenarios is determined. These opening values will be used as the basis for testing to simulate the running state of the conical valve under different working conditions. At the initial moment of each set opening value, the inlet pressure and outlet pressure of the conical valve are accurately adjusted to achieve the predetermined target pressure value. Start the test run and make the conical valve start working under this pressure condition, and start the data recording device to record the working state and related parameters of the conical valve in real time. These data are referred to as first data information. After the conical valve runs stably for a period of time, gradually increase the outlet pressure of the conical valve and observe whether cavitation phenomenon (i.e. bubbles or gas in the liquid) occurs in the conical valve. When the observation shows that the cavitation bubbles in the conical valve cavity disappear, record the outlet pressure value and related data at this time. These data are referred to as second data information. After the outlet pressure reaches the cavitation disappearance point, further increase the inlet pressure of the conical valve to simulate the running state of the conical valve under high pressure working condition. In the process of increasing the inlet pressure, the inlet pressure value, flow rate, pressure loss and other related data of the conical valve are recorded in real time. These data are referred to as third data information. The first data information, second data information and third data information are summarized, and data analysis tools or algorithms are used to process and analyze these data. According to the analysis result, the flow capacity of the conical valve is evaluated, including the evaluation of flow characteristics, pressure loss, cavitation characteristics, etc. The evaluation result is obtained, which provides a scientific basis for the design optimization, performance improvement or selection of the conical valve.

[0127] The effect of the above technical solution is: by accurately adjusting the inlet and outlet pressures of the conical valve and recording the working state and related parameters of the conical valve in real time, the accuracy and precision of the test can be improved. By collecting and analyzing the running data of the conical valve under different opening values and different pressure conditions, the flow capacity of the conical valve can be evaluated comprehensively, including the evaluation of flow characteristics, pressure loss, cavitation characteristics, etc. According to the evaluation result, the shortcomings of the conical valve in design and performance can be found out, which provides a scientific basis for design optimization and performance improvement. By comparing the evaluation results of different conical valves, users can help to select the conical valve model and specification that is more suitable for their application requirements. By evaluating and improving the flow capacity of the conical valve, the performance stability and reliability of the conical valve can be improved, thereby improving the quality of the product.

[0128] An embodiment of the present application, at the initial moment of testing corresponding to each opening value, the inlet pressure and outlet pressure of the cone valve are adjusted to the target pressure, and the test run and data recording are started, and the first data information is obtained, including:

[0129] Extracting the test opening value of the cone valve corresponding to the current test;

[0130] According to the test opening value of the cone valve, the target inlet pressure value and the target outlet pressure value of the cone valve are obtained;

[0131] Adjusting the inlet pressure of the cone valve to the target inlet pressure value; wherein the target inlet pressure value is obtained by the following formula:

[0132] P mr =P min -α·(P max -P min )

[0133] Wherein, P mr represents the target inlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the cone valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the cone valve; alpha represents the first adjustment coefficient; and the first adjustment coefficient is obtained by the following formula:

[0134]

[0135] Wherein, omega c represents the test opening value of the cone valve corresponding to the current test; omega e represents the opening value corresponding to the full opening of the cone valve; P min represents the minimum working pressure corresponding to the rated working pressure range of the cone valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the cone valve;

[0136] Adjusting the outlet pressure of the cone valve to the target outlet pressure value; wherein the target outlet pressure value is obtained by the following formula:

[0137] P mc =(1+beta)·P min

[0138] Wherein, P mc represents the target outlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the cone valve; beta represents the second adjustment coefficient; and the second adjustment coefficient is obtained by the following formula:

[0139]

[0140] Pmin min Pmin represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; Pmax represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; Pmr represents the target inlet pressure value; Pmc represents the target outlet pressure value; and Pmin max Pmin represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; Pmax represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; Pmr represents the target inlet pressure value; Pmc represents the target outlet pressure value; and Pmin mr Pmin represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; Pmax represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; Pmr represents the target inlet pressure value; Pmc represents the target outlet pressure value; and Pmin

[0141] When the test operation is stable, the vibration signal and cavitation image under the stable test operation condition are collected, and the current inlet and outlet pressure and flow data of the conical valve are recorded;

[0142] The vibration signal and cavitation image and the inlet and outlet pressure and flow data of the conical valve are taken as the first data information.

[0143] The working principle of the above technical solution is as follows: before starting the test, the test opening value of the conical valve corresponding to the current test is first determined, which will serve as the basis for subsequent pressure adjustment and data analysis. According to the rated working pressure range (Pmin to Pmax) of the conical valve and the current test opening value (ωc), the target inlet pressure value (Pmr) is calculated through a specific adjustment coefficient (α). The calculation of α takes into account the opening value (ωe) corresponding to the full opening of the conical valve and the rated working pressure range. The inlet pressure of the conical valve is adjusted to the calculated target inlet pressure value (Pmr), ensuring that the conical valve operates at a predetermined pressure during the test. Similarly, based on the rated working pressure range (Pmin to Pmax) of the conical valve and the calculated target inlet pressure value (Pmr), the target outlet pressure value (Pmc) is calculated through another specific adjustment coefficient (β). The outlet pressure of the conical valve is adjusted to the calculated target outlet pressure value (Pmc), ensuring that the inlet and outlet pressures of the conical valve are within the preset range during the test. The working pressure fluctuation difference value can be calculated through P max -P min The working pressure fluctuation difference value can be calculated through P and The adjustment coefficient under the two different conditions of P or <0.5 can be calculated, and the working pressure fluctuation difference value of the target inlet pressure value can be calculated through α·(P max -P min The influence coefficient of different adjustment coefficients on the working pressure fluctuation difference value of the target inlet pressure value can be calculated through P The adjustment coefficient affected by the minimum value in the maximum value of P can be calculated, and the adjustment coefficient affected by the minimum value in the maximum value of P is relatively small, and the adjustment coefficient affected by the maximum value in the minimum value of P The greater the minimum value of the second adjustment coefficient, the greater the target outlet pressure value. The formula makes the adjustment coefficient change with the actual situation, greatly improving the flexibility and accuracy of the adjustment; after the test runs stably, the vibration signals and cavitation images of the cone valve during operation are collected. These signals and images reflect the running state of the cone valve under certain working conditions. At the same time, the current inlet and outlet pressure and flow data of the cone valve are recorded, which provides the real-time performance of the cone valve during the test process. The collected vibration signals, cavitation images and inlet and outlet pressure and flow data are saved as the first data information for subsequent analysis and evaluation.

[0144] The effects of the above technical solutions are: by calculating the target inlet pressure value and the target outlet pressure value, and accurately adjusting the inlet and outlet pressures of the conical valve, it can be ensured that the test is carried out under the predetermined pressure condition, and the accuracy and reliability of the test are improved. The collected vibration signals and cavitation images can intuitively reflect the running state of the conical valve under specific working conditions, providing rich data support for evaluating the performance of the conical valve. The recorded inlet and outlet pressure and flow data can provide scientific basis for the design optimization, performance improvement or selection of the conical valve, helping users make more reasonable decisions. Through the automatic control and data acquisition system, the test process can be quickly and accurately completed, and the test data can be obtained in real time, improving the test efficiency. By evaluating and analyzing the performance of the conical valve under different working conditions, potential problems can be found and improved in time, thereby promoting the improvement of product quality. Since the target inlet pressure value is dynamically calculated according to the current test opening value, this method can ensure that the conical valve can be effectively tested within its rated working pressure range under different openings. This helps to improve the accuracy and reliability of the test. By limiting the target inlet pressure value within the rated working pressure range of the conical valve, this method can avoid damage to the conical valve caused by excessive pressure, thereby ensuring the safety of the test process. The introduction of the first adjustment coefficient (α) makes the calculation of the target inlet pressure value more flexible. By adjusting the calculation formula of the first adjustment coefficient, the distribution of the target inlet pressure value can be adjusted according to actual needs to adapt to different test scenarios and test requirements. Since the calculation of the target inlet pressure value is based on the rated working pressure range of the conical valve and the current test opening value, this method has a certain predictability. Before testing, the target inlet pressure value at each opening can be calculated in advance according to the specifications of the conical valve and test requirements, thereby guiding the test process. By automatically calculating the target inlet pressure value, this method simplifies the test process, reduces the possibility of human intervention and errors, and improves the test efficiency. The above formula provides a dynamic, safe, flexible, predictable and efficient method for calculating the target inlet pressure value, which is of great significance for improving the accuracy and reliability of the conical valve test. The calculation of the target outlet pressure value and the second adjustment coefficient not only considers the rated working pressure range (P min ) of the conical valve, but also combines the target inlet pressure value (P max ), so that the outlet pressure demand of the conical valve under specific working conditions can be more comprehensively reflected. The introduction of the second adjustment coefficient (β) makes the target outlet pressure value (P mr ) able to change with the target inlet pressure value (P mc ), so that the test can be carried out under different working conditions and the test results can be more accurate and reliable. The introduction of the third adjustment coefficient (γ) makes the target outlet pressure value (P mr) to dynamically adjust. This dynamic adjustment helps ensure that the conical valve maintains stable performance under different working conditions. By limiting the target outlet pressure value within the rated working pressure range of the conical valve, this method can avoid excessive outlet pressure from damaging the system, ensuring system safety. By reasonably setting the calculation formula of the second adjustment coefficient, the distribution of the target outlet pressure value can be optimized, allowing the conical valve to achieve optimal performance under certain working conditions. By automatically calculating the target outlet pressure value, this method simplifies the operation process, reduces the possibility of human intervention and errors, and improves work efficiency. Since the calculation of the target outlet pressure value is based on the rated working pressure range of the conical valve, the target inlet pressure value, and the second adjustment coefficient, this method has a certain predictability. Before testing or operation, the target outlet pressure value can be calculated in advance according to the specifications, working conditions, and target inlet pressure value of the conical valve, thereby guiding the actual operation. The above formula provides a method for calculating the target outlet pressure value by comprehensively considering the working pressure range of the conical valve and the target inlet pressure value, with technical effects such as dynamic adjustment, high safety, performance optimization, simplified operation, and strong predictability.

[0145] In one embodiment of the present application, the outlet pressure of the conical valve is raised until the cavitation cavities in the cavity of the conical valve disappear, and second data information is obtained, including:

[0146] Extracting the target inlet pressure value and the target outlet pressure;

[0147] Extracting the test opening value of the conical valve corresponding to the current test;

[0148] According to the test opening value of the conical valve in combination with the target inlet pressure value and the target outlet pressure, the upper and lower limit values of the single pressure adjustment gradient during the outlet pressure rise of the conical valve are obtained; wherein the upper and lower limit values of the pressure adjustment gradient during the outlet pressure rise of the conical valve are obtained by the following formula:

[0149]

[0150] wherein, P cup represents the upper limit value of the pressure adjustment gradient during the outlet pressure rise of the conical valve; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; α represents the first adjustment coefficient; β represents the second adjustment coefficient;

[0151]

[0152] wherein, P cdown represents the lower limit value of the pressure adjustment gradient; Pmc represents the target outlet pressure value; P mr represents the target inlet pressure value; P cup represents the upper limit value of the pressure regulation gradient;

[0153] The pressure regulation gradient for the outlet pressure of the conical valve is set according to the upper and lower limit values of the pressure gradient;

[0154] The outlet pressure of the conical valve is adjusted according to the pressure regulation gradient until the cavitation bubbles in the cavity of the conical valve disappear;

[0155] The vibration signal and cavitation image of the conical valve under the condition that the cavitation bubbles disappear, as well as the inlet and outlet pressure and flow data of the conical valve, are collected as the second data information.

[0156] The working principle of the above technical solution is as follows: the target inlet pressure value (P mr ) and the target outlet pressure value (P mc ) are extracted from the test parameters, as well as the test opening value (ω c ) of the conical valve corresponding to the current test. Combined with the target inlet pressure value (P mr ), the target outlet pressure value (P mc ), the minimum working pressure (P min ) corresponding to the rated working pressure range of the conical valve, as well as the first adjustment coefficient (α) and the second adjustment coefficient (β), the upper limit value (P cup ) and the lower limit value (P cdown ) of the pressure regulation gradient for the outlet pressure of the conical valve are calculated through a specific formula. According to the calculated upper limit value (P cup ) and lower limit value (P cdown ) of the pressure regulation gradient, the pressure regulation gradient for the outlet pressure of the conical valve is set. This is usually achieved through a control system, ensuring that the pressure regulation is within the set gradient range. According to the set pressure regulation gradient, the outlet pressure of the conical valve is adjusted step by step. This process is usually automated, and the control system will monitor the outlet pressure and gradually increase it according to the set gradient. During the process of increasing the outlet pressure, it is necessary to continuously observe whether cavitation bubbles appear in the cavity of the conical valve. When the cavitation bubbles disappear, it means that the performance of the conical valve under this condition has reached a critical point. Under the condition that the cavitation bubbles in the cavity disappear, the vibration signal, cavitation image, and inlet and outlet pressure and flow data of the conical valve are collected. These data are referred to as the second data information, which reflects the performance of the conical valve under specific conditions.

[0157] The effects of the above technical solution are as follows: By setting upper and lower limits for the pressure regulation gradient, the rise in outlet pressure of the conical valve can be precisely controlled, ensuring that the test is conducted within the predetermined pressure range, thus improving the accuracy and reliability of the test. Continuous observation of cavitation phenomena within the conical valve cavity allows for accurate capture of the critical points of performance changes, providing crucial data for evaluating the valve's performance. The collected vibration signals, cavitation images, and inlet / outlet pressure and flow data provide rich data support for the performance evaluation of the conical valve, helping to identify potential problems and facilitate improvements. Analysis of this secondary data information allows for understanding the performance of the conical valve under different operating conditions, providing a scientific basis for design optimization and performance improvement. The automated control and data acquisition system improves testing efficiency, enabling rapid and accurate completion of the test process and acquisition of necessary data. By introducing the target outlet pressure value (Pmc) and target inlet pressure value (Pmr), as well as the rated operating pressure range of the conical valve (Pmin to Pmax), the upper and lower limits of the pressure regulation gradient can be dynamically calculated. This ensures that the conical valve maintains an appropriate pressure variation range under different operating conditions. Setting the upper limit (Pcup) and lower limit (Pcdown) of the pressure regulation gradient helps prevent the outlet pressure from being too high or too low, thereby avoiding potential system damage or performance degradation. This is achieved through the formula... It can be calculated that the [(P]] min -P mr ),(P mc -P min The minimum value of )] is in [(P min -P mr ),(P mc -P min The adjustment coefficient for the proportion of the maximum value, relatively speaking, [(P min -P mr ),(P mc -P min The larger the minimum value of ], the larger the upper limit of the pressure regulation gradient, as shown in the formula. The influence coefficient of the minimum value of (α,β) within the maximum value of (α,β) can be calculated. Relatively speaking, the larger the minimum value of (α,β), the smaller the upper limit of the pressure regulation gradient. This can be achieved through the formula... The lower limit of the pressure regulation gradient can be calculated by taking into account the upper limit of the influence of the first regulation coefficient combined with the proportion of the target inlet pressure value in the target outlet pressure value. When P is larger, cdownThe smaller the better. This ensures the safe operation of the conical valve and the system it is in. By reasonably setting the upper and lower limit values of the pressure regulation gradient, the performance of the conical valve can be optimized. For example, in a system that requires fast response, a narrower gradient range can be set to improve response speed; while in a system that requires stable output, a wider gradient range can be set to reduce pressure fluctuations. Since the upper and lower limit values of the pressure regulation gradient are calculated based on parameters such as the rated working pressure range of the conical valve, the target outlet pressure value and the target inlet pressure value, they have a certain predictability. This allows operators to pre-set appropriate gradient ranges as needed, thereby achieving effective control of the conical valve outlet pressure. By automatically calculating the upper and lower limit values of the pressure regulation gradient, the operation process is simplified, reducing the likelihood of human intervention and errors. At the same time, this also provides convenience for the maintenance of the conical valve, as operators can monitor and assess the performance status of the conical valve based on these values.

[0158] In one embodiment of the present application, the inlet pressure of the conical valve is increased and third data information of the conical valve under the condition of increased inlet pressure is recorded, including:

[0159] Extracting test requirement information;

[0160] According to the test requirement information, obtaining the first, second and third outlet test pressures corresponding to the conical valve;

[0161] According to the first, second and third outlet test pressures, setting the first, second and third pressure increase gradient ranges corresponding to the inlet pressure of the conical valve;

[0162] According to the first pressure increase gradient range, setting the first pressure increase gradient, and increasing the inlet pressure of the conical valve according to the first pressure increase gradient until the outlet pressure of the conical valve reaches the first outlet test pressure, and recording the vibration signal, cavitation image and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the first outlet test pressure;

[0163] According to the second pressure increase gradient range, setting the second pressure increase gradient, and increasing the inlet pressure of the conical valve according to the second pressure increase gradient until the outlet pressure of the conical valve reaches the second outlet test pressure, and recording the vibration signal, cavitation image and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the second outlet test pressure;

[0164] set the third pressure-increasing gradient according to the third pressure-increasing gradient range, increase the inlet pressure of the conical valve according to the third pressure-increasing gradient until the outlet pressure of the conical valve reaches the third outlet test pressure, and record the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the third outlet test pressure;

[0165] record the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the first outlet test pressure, the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the second outlet test pressure, and the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the third outlet test pressure as the third data information.

[0166] The working principle of the above technical solution is as follows: before starting the test, first extract the test requirement information, which usually includes the rated parameters of the conical valve, the expected test range, the outlet pressure points that need to be tested, etc. According to the test requirement information, determine the first outlet test pressure, the second outlet test pressure and the third outlet test pressure corresponding to the conical valve. These test pressure points represent the key points that need to be paid attention to during the test. According to each outlet test pressure point, set the first pressure-increasing gradient range, the second pressure-increasing gradient range and the third pressure-increasing gradient range corresponding to the inlet pressure of the conical valve. These gradient ranges ensure that the pressure increases gradually during the test, thereby avoiding sudden impact on the conical valve. Set the first pressure-increasing gradient according to the first pressure-increasing gradient range, and gradually increase the inlet pressure of the conical valve until the outlet pressure of the conical valve reaches the first outlet test pressure. In this process, record the vibration signal, cavitation image and inlet and outlet pressure values of the conical valve when the outlet pressure reaches the test pressure point. Set the second pressure-increasing gradient according to the second pressure-increasing gradient range, and repeat the above process until the outlet pressure reaches the second outlet test pressure. Set the third pressure-increasing gradient according to the third pressure-increasing gradient range, and continue the above steps until the outlet pressure reaches the third outlet test pressure. Organize all the data collected during the test (including vibration signal, cavitation image and inlet and outlet pressure values) according to the corresponding outlet test pressure points, and store these data as the third data information.

[0167] The effects of the above technical solutions are: by setting different pressure increasing gradient ranges, the increasing process of the inlet pressure of the cone valve can be accurately controlled, ensuring that the test process is carried out within the predetermined pressure range, and improving the accuracy and reliability of the test. By testing the performance of the cone valve at different outlet test pressure points, the performance of the cone valve under different working conditions can be comprehensively evaluated, providing an important basis for the design and optimization of the product. During the test process, a large amount of vibration signals, cavitation images, and inlet and outlet pressure values are collected, which provide rich data support for the performance evaluation of the cone valve, and help to find potential problems and improve them. Through the analysis of the third data information, the performance variation trend of the cone valve under different pressures can be understood, providing a scientific basis for the design optimization and performance improvement of the cone valve. The automatic control and data acquisition system improves the test efficiency, can quickly and accurately complete the test process and obtain the required data, and shortens the product development cycle.

[0168] In one embodiment of the present application, the first pressure increasing gradient range, the second pressure increasing gradient range and the third pressure increasing gradient range are obtained by the following formula:

[0169]

[0170] wherein, P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range; ω c represents the test opening value of the cone valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the cone valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P cup represents the upper limit value of the pressure regulation gradient of the outlet pressure of the cone valve;

[0171]

[0172] wherein, P rdown01 represents the lower limit value corresponding to the first pressure increasing gradient range; P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range; ω c represents the test opening value of the cone valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the cone valve; P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range;

[0173]

[0174] wherein, P rup02 represents the upper limit value corresponding to the second pressure increasing gradient range; ω crepresents the test opening value of the cone valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the cone valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P c02 represents the second outlet test pressure; P rup01 represents the upper limit value corresponding to the first pressure increase gradient range; P

[0175]

[0176] represents the lower limit value corresponding to the second pressure increase gradient range; P rdown02 represents the lower limit value corresponding to the second pressure increase gradient range; P rup02 represents the upper limit value corresponding to the second pressure increase gradient range; ω c represents the test opening value of the cone valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the cone valve;

[0177]

[0178] represents the upper limit value corresponding to the third pressure increase gradient range; P rup03 represents the upper limit value corresponding to the third pressure increase gradient range; P rup01 represents the upper limit value corresponding to the third pressure increase gradient range; P rup02 represents the upper limit value corresponding to the third pressure increase gradient range; ω c represents the test opening value of the cone valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the cone valve;

[0179]

[0180] represents the lower limit value corresponding to the third pressure increase gradient range; P rdown03 represents the lower limit value corresponding to the third pressure increase gradient range; P rup03 represents the lower limit value corresponding to the third pressure increase gradient range; ω c represents the test opening value of the cone valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the cone valve.

[0181] The working principle of the above technical solution is that the calculation of the upper limit value (P rup01 ) considers the test opening (ω c ) of the cone valve, the full opening (ω e ), the target inlet pressure (P mr ), the target outlet pressure (P mc ), and the first outlet test pressure (P c01) is also referenced to ensure the reasonability of the pressure increase. The lower limit value (P rdown01 ) is calculated based on the upper limit value (P rup01 ) and the current test opening (ω c ) and other parameters to ensure the stability of the pressure increase. The calculation of the upper limit value (P rup02 ) takes into account the same parameters as the first pressure increase gradient range, and also includes the second test point pressure (P c02 ) to set an appropriate pressure increase gradient before reaching the second test point.

[0182] The lower limit value (P rdown02 ) is calculated based on the upper limit value (P rup02 ) of the second pressure increase gradient range and other related parameters. The calculation of the upper limit value (P rup03 ) is based on the upper limit values (P rup01 and P rup02 ) of the first two pressure increase gradient ranges, as well as the test opening (ω c ) of the conical valve and other parameters, to ensure that the pressure increase gradient before reaching the third test point is coordinated with the first two test stages. The calculation of the lower limit value (P rdown03 ) is related to the upper limit value (P rup03 ) of the third pressure increase gradient range and other related parameters. These calculated pressure increase gradient ranges are used to control the increase of the conical valve inlet pressure, ensuring that the test process is carried out within the predetermined pressure range, and that appropriate pressure increase gradients can be set for different test stages.

[0183] The effects of the above technical solution are as follows: By calculating the pressure gradient range based on parameters such as the current opening degree of the conical valve, the target pressure, and the test point, the increase in inlet pressure of the conical valve can be precisely controlled, ensuring that the test is conducted within the predetermined pressure range, thus improving the accuracy and reliability of the test. A reasonable pressure gradient setting can avoid sudden pressure shocks to the conical valve during testing, thereby reducing the risk of equipment damage or personnel injury and improving test safety. Testing within different pressure gradient ranges allows for the collection of more performance data of the conical valve under different pressures, providing rich data support for the performance evaluation of the conical valve and helping to identify potential problems and make improvements. Analysis of the test data reveals the performance change trend of the conical valve under different pressures, providing a scientific basis for the design optimization and performance improvement of the conical valve, and contributing to the improvement of the overall product performance. Through automated control and data acquisition systems, combined with precisely set pressure gradient ranges, the testing process can be completed quickly and accurately, and the required data can be obtained, improving testing efficiency and shortening the product development cycle. By defining multiple pressure gradient ranges, precise control of the conical valve under different operating conditions can be achieved. This helps ensure that the pressure changes of the cone valve follow a predetermined gradient range during testing or operation, thereby improving system stability and reliability. Since the pressure gradient range is calculated based on dynamic factors such as the current test opening (ωc) and the target pressure values ​​(Pmr, Pmc), it is determined through the formula... The influence coefficient of ωc's proportion in ωe can be calculated. The larger it is, the better. The smaller the value, the smaller the upper or lower limit of the pressure regulation gradient corresponding to the formula. The influence coefficient of the proportion of ωc in ωe and min(P) can be calculated. rup01 ,P rup02 ) in max(P rup01 ,P rup02) in the corresponding formula. Therefore, these ranges can adapt to the needs of the conical valve under different working conditions. This dynamic adaptability enables the conical valve to maintain optimal performance under various working conditions. By setting the upper and lower limit values of the pressurization gradient range, it can avoid the conical valve from experiencing excessively high or low pressure during testing or operation, thereby protecting the system from damage. This safety design helps to extend the service life of the conical valve and reduce system maintenance costs. Since the pressurization gradient range is calculated based on a series of measurable parameters (such as test opening, target pressure value, etc.), these ranges have a certain predictability. This allows the operator to pre-set appropriate pressurization gradient ranges as needed, thereby achieving effective control of the conical valve outlet pressure. By automatically calculating the upper and lower limit values of the pressurization gradient range, the operation process is simplified, reducing the likelihood of human intervention and errors. At the same time, this also provides convenience for the maintenance of the conical valve, as the operator can monitor and evaluate the performance status of the conical valve based on these ranges.

[0184] In one embodiment of the present application, the conical valve flow capacity test system comprises:

[0185] An opening value extraction module for extracting test requirement information and obtaining the corresponding test opening value of the conical valve based on the test requirement information;

[0186] A first data acquisition module for adjusting the target pressure of the inlet and outlet pressures of the conical valve at the initial test time corresponding to each opening value, starting the test run and data recording, and acquiring first data information;

[0187] A second data acquisition module for increasing the outlet pressure of the conical valve until the cavitation cavities in the conical valve cavity disappear, and acquiring second data information;

[0188] A third data acquisition module for increasing the inlet pressure of the conical valve and recording the third data information under the condition of increasing the inlet pressure of the conical valve;

[0189] A capacity evaluation module for evaluating the flow capacity of the conical valve based on the first data information, second data information, and third data information, and obtaining an evaluation result.

[0190] The working principle of the above technical solution is: the purpose and requirements of the test are clearly defined, and specific test requirement information related to the evaluation of the flow capacity of the conical valve is extracted, such as the expected test opening range, pressure regulation range, etc. According to the extracted test requirement information, the opening value of the conical valve under different test scenarios is determined. These opening values will serve as the basis for the test, used to simulate the operating state of the conical valve under different working conditions. At the initial moment of the test corresponding to each set opening value, the inlet pressure and outlet pressure of the conical valve are accurately adjusted to achieve the predetermined target pressure value. Start the test run, make the conical valve start working under this pressure condition, and start the data recording device to record the working state and related parameters of the conical valve in real time, these data are referred to as first data information. After the conical valve runs stably for a period of time, gradually increase the outlet pressure of the conical valve, and observe whether cavitation phenomenon (i.e. bubbles or gas in the liquid) occurs in the conical valve. When the observation of the disappearance of cavitation bubbles in the conical valve cavity is observed, record the outlet pressure value and related data at this time, these data are referred to as second data information. After the outlet pressure reaches the cavitation disappearance point, further increase the inlet pressure of the conical valve to simulate the operating state of the conical valve under high pressure working condition. In the process of increasing the inlet pressure, the inlet pressure value, flow rate, pressure loss and other related data of the conical valve are recorded in real time, these data are referred to as third data information. The first data information, the second data information and the third data information are summarized, and the data are processed and analyzed by using data analysis tools or algorithms. According to the analysis result, the flow capacity of the conical valve is evaluated, including the evaluation of flow characteristics, pressure loss, cavitation characteristics, etc. The evaluation result is obtained, which provides a scientific basis for the design optimization, performance improvement or selection of the conical valve.

[0191] The effect of the above technical solution is: by accurately adjusting the inlet and outlet pressures of the conical valve, and recording the working state and related parameters of the conical valve in real time, the accuracy and precision of the test can be improved. By collecting and analyzing the operating data of the conical valve under different opening values and different pressure conditions, the flow capacity of the conical valve can be comprehensively evaluated, including flow characteristics, pressure loss, cavitation characteristics, etc. According to the evaluation result, the shortcomings of the conical valve in design and performance can be found out, which provides a scientific basis for design optimization and performance improvement. By comparing the evaluation results of different conical valves, users can help select the conical valve model and specification that better meets their application requirements. By evaluating and improving the flow capacity of the conical valve, the performance stability and reliability of the conical valve can be improved, thereby improving the quality of the product.

[0192] In an embodiment of the present application, the first data acquisition module comprises:

[0193] The test opening value extraction module is configured to extract the test opening value of the conical valve corresponding to the current test.

[0194] The pressure value acquisition module is configured to acquire a target inlet pressure value and a target outlet pressure value of the conical valve according to a test opening value of the conical valve.

[0195] The inlet pressure adjustment calculation module is configured to adjust an inlet pressure of the conical valve to the target inlet pressure value, wherein the target inlet pressure value is acquired by the following formula:

[0196] P mr = P min - α · (P max - P min )

[0197] wherein P mr represents the target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to the rated working pressure range of the conical valve; and α represents a first adjustment coefficient, and the first adjustment coefficient is acquired by the following formula:

[0198]

[0199] wherein ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents a full opening value of the conical valve; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; and P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve.

[0200] The outlet pressure adjustment calculation module is configured to adjust an outlet pressure of the conical valve to a target outlet pressure value, wherein the target outlet pressure value is acquired by the following formula:

[0201] P mc = (1 + β) · P min

[0202] wherein P mc represents the target outlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; and β represents a second adjustment coefficient, and the second adjustment coefficient is acquired by the following formula:

[0203]

[0204] wherein P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; and P mra target inlet pressure value is represented;

[0205] a data recording module is configured to collect vibration signals and cavitation images under stable test running conditions, and record current inlet and outlet pressure and flow data of the cone valve when the test running is stable;

[0206] The vibration signals and cavitation images and the inlet and outlet pressure and flow data of the cone valve are used as first data information.

[0207] The working principle of the above technical solution is as follows: before starting the test, first determine the test opening value of the cone valve corresponding to the current test, which will be used as the basis for subsequent pressure adjustment and data analysis. According to the rated working pressure range (P min to P max ) of the cone valve and the current test opening value (ω c ), the target inlet pressure value (P mr ) is calculated through a specific adjustment coefficient (α). The calculation of α takes into account the opening value (ω e ) corresponding to the full opening of the cone valve and the rated working pressure range. The inlet pressure of the cone valve is adjusted to the calculated target inlet pressure value (P mr ), to ensure that the cone valve operates at a predetermined pressure during the test. Similarly, based on the rated working pressure range (P min to P max ) of the cone valve and the calculated target inlet pressure value (P mr ), the target outlet pressure value (P mc ) is calculated through another specific adjustment coefficient (β). The outlet pressure of the cone valve is adjusted to the calculated target outlet pressure value (P mc ), to ensure that the inlet and outlet pressures of the cone valve are within the preset range during the test. After the test running is stable, the vibration signals and cavitation images of the cone valve during operation are collected, which reflect the running state of the cone valve under specific conditions. At the same time, the current inlet and outlet pressure and flow data of the cone valve are recorded, which provide real-time performance of the cone valve during the test. The collected vibration signals, cavitation images and inlet and outlet pressure and flow data are saved as first data information for subsequent analysis and evaluation.

[0208] The technical scheme has the effects that: by calculating the target inlet pressure value and the target outlet pressure value and precisely adjusting the inlet and outlet pressures of the conical valve, it can be ensured that the test is carried out under predetermined pressure conditions, and the accuracy and reliability of the test are improved. The collected vibration signals and cavitation images can intuitively reflect the running state of the conical valve under specific working conditions, providing rich data support for evaluating the performance of the conical valve. The recorded inlet and outlet pressure and flow data can provide scientific basis for the design optimization, performance improvement or selection of the conical valve, helping users make more reasonable decisions. Through the automatic control and data acquisition system, the test process can be quickly and accurately completed, and the test data can be obtained in real time, improving the test efficiency. By evaluating and analyzing the performance of the conical valve under different working conditions, potential problems can be found and improved in time, thereby promoting the improvement of product quality.

[0209] In an embodiment of the present application, the second data acquisition module comprises:

[0210] A pressure extraction module is configured to extract the target inlet pressure value and the target outlet pressure value.

[0211] A test opening value extraction module is configured to extract the test opening value of the conical valve corresponding to the current test.

[0212] A limit value adjustment calculation module is configured to obtain the upper limit value and the lower limit value of the pressure adjustment gradient corresponding to a single pressure adjustment in the outlet pressure rising process of the conical valve according to the test opening value of the conical valve in combination with the target inlet pressure value and the target outlet pressure value. The upper limit value and the lower limit value of the pressure adjustment gradient in the outlet pressure rising process of the conical valve are obtained by the following formula:

[0213]

[0214] wherein, P cup represents the upper limit value of the pressure adjustment gradient in the outlet pressure rising process of the conical valve; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; and α represents a first adjustment coefficient; and β represents a second adjustment coefficient.

[0215]

[0216] wherein, P cdown represents the lower limit value of the pressure adjustment gradient; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P cup represents the upper limit value of the pressure adjustment gradient.

[0217] a gradient setting module configured to set a pressure regulation gradient according to an upper limit value and a lower limit value of the pressure gradient of the outlet pressure of the conical valve;

[0218] a rising regulation module configured to regulate the outlet pressure of the conical valve according to the pressure regulation gradient until the cavitation cavities in the cavity of the conical valve disappear;

[0219] a second acquisition module configured to acquire vibration signals and cavitation images under the condition that the cavitation cavities disappear, and inlet and outlet pressure and flow data of the conical valve as second data information.

[0220] The working principle of the above technical solution is as follows: the target inlet pressure value (P mr ) and the target outlet pressure value (P mc ) are extracted from the test parameters, and the test opening value (ω c ) of the conical valve corresponding to the current test is extracted. Combined with the target inlet pressure value (P mr ), the target outlet pressure value (P mc ), the minimum working pressure (P min ) corresponding to the rated working pressure range of the conical valve, and the first regulation coefficient (α) and the second regulation coefficient (β), the upper limit value (P cup ) and the lower limit value (P cdown ) of the pressure regulation gradient of the outlet pressure of the conical valve are calculated through a specific formula. According to the calculated upper limit value (P cup ) and lower limit value (P cdown ) of the pressure regulation gradient, the pressure regulation gradient of the outlet pressure of the conical valve is set. This is usually achieved through a control system, ensuring that the pressure regulation is within the set gradient range. According to the set pressure regulation gradient, the outlet pressure of the conical valve is gradually regulated. This process is usually automated, and the control system will monitor the outlet pressure and gradually increase it according to the set gradient. During the process of increasing the outlet pressure, it is necessary to continuously observe whether cavitation cavities appear in the cavity of the conical valve. When the cavitation cavities disappear, it means that the performance of the conical valve under this condition has reached a critical point. Under the condition that the cavitation cavities in the cavity disappear, the vibration signals, cavitation images, and inlet and outlet pressure and flow data of the conical valve are collected. These data are referred to as second data information, which reflects the performance of the conical valve under specific conditions.

[0221] The effects of the technical solutions are as follows: by setting the upper and lower limit values of the pressure regulation gradient, the rising process of the outlet pressure of the cone valve can be accurately controlled, the test process is ensured to be performed within a predetermined pressure range, and the accuracy and reliability of the test are improved. By continuously observing the cavitation phenomenon in the cone valve cavity, the critical point of the performance change of the cone valve can be accurately captured, which provides an important basis for evaluating the performance of the cone valve. The collected vibration signals, cavitation images, and inlet and outlet pressure and flow data provide rich data support for the performance evaluation of the cone valve, which helps to find potential problems and make improvements. By analyzing the second data information, the performance of the cone valve under different working conditions can be understood, which provides a scientific basis for the design optimization and performance improvement of the cone valve. The automatic control and data acquisition system improves the test efficiency and can quickly and accurately complete the test process and obtain the required data.

[0222] In an embodiment of the present application, the third data acquisition module comprises:

[0223] A test pressure acquisition module is configured to extract test requirement information.

[0224] According to the test requirement information, the first outlet test pressure, the second outlet test pressure, and the third outlet test pressure corresponding to the cone valve are obtained.

[0225] A range setting module is configured to set the first pressure increase gradient range, the second pressure increase gradient range, and the third pressure increase gradient range corresponding to the inlet pressure of the cone valve according to the first outlet test pressure, the second outlet test pressure, and the third outlet test pressure.

[0226] A first test recording module is configured to set a first pressure increase gradient according to the first pressure increase gradient range, increase the inlet pressure of the cone valve according to the first pressure increase gradient until the outlet pressure of the cone valve reaches the first outlet test pressure, and record the vibration signals, the cavitation images, and the inlet and outlet pressure values under the condition that the outlet pressure of the cone valve reaches the first outlet test pressure.

[0227] A second test recording module is configured to set a second pressure increase gradient according to the second pressure increase gradient range, increase the inlet pressure of the cone valve according to the second pressure increase gradient until the outlet pressure of the cone valve reaches the second outlet test pressure, and record the vibration signals, the cavitation images, and the inlet and outlet pressure values under the condition that the outlet pressure of the cone valve reaches the second outlet test pressure.

[0228] A third test recording module is configured to set a third pressure increase gradient according to the third pressure increase gradient range, increase the inlet pressure of the cone valve according to the third pressure increase gradient until the outlet pressure of the cone valve reaches the third outlet test pressure, and record the vibration signals, the cavitation images, and the inlet and outlet pressure values under the condition that the outlet pressure of the cone valve reaches the third outlet test pressure.

[0229] The third acquisition module is configured to acquire, as third data information, data parameters corresponding to the vibration signal and cavitation image and the inlet-outlet pressure value when the outlet pressure of the conical valve reaches the first outlet test pressure, the vibration signal and cavitation image and the inlet-outlet pressure value when the outlet pressure of the conical valve reaches the second outlet test pressure, and the vibration signal and cavitation image and the inlet-outlet pressure value when the outlet pressure of the conical valve reaches the third outlet test pressure.

[0230] The working principle of the above technical solution is as follows: before starting the test, the test requirement information is first extracted, which usually includes the rated parameters of the conical valve, the expected test range, the outlet pressure points that need to be tested, etc. According to the test requirement information, the first outlet test pressure, the second outlet test pressure and the third outlet test pressure corresponding to the conical valve are determined. These test pressure points represent the key points that need to be paid attention to in the test process. According to each outlet test pressure point, the first pressure increasing gradient range, the second pressure increasing gradient range and the third pressure increasing gradient range corresponding to the inlet pressure of the conical valve are set. These gradient ranges ensure that the pressure increases gradually in the test process, thereby avoiding sudden impact on the conical valve. The first pressure increasing gradient is set according to the first pressure increasing gradient range, and the inlet pressure of the conical valve is gradually increased until the outlet pressure of the conical valve reaches the first outlet test pressure. In this process, the vibration signal, cavitation image and inlet-outlet pressure value of the conical valve when the outlet pressure reaches the test pressure point are recorded. The second pressure increasing gradient is set according to the second pressure increasing gradient range, and the above process is repeated until the outlet pressure reaches the second outlet test pressure. The third pressure increasing gradient is set according to the third pressure increasing gradient range, and the above steps are continued until the outlet pressure reaches the third outlet test pressure. All the data collected in the test process (including the vibration signal, cavitation image and inlet-outlet pressure value) are sorted according to the corresponding outlet test pressure points, and these data are stored as third data information.

[0231] The effects of the above technical solutions are: by setting different pressure increasing gradient ranges, the increasing process of the inlet pressure of the cone valve can be accurately controlled, ensuring that the test process is carried out within the predetermined pressure range, and improving the accuracy and reliability of the test. By testing the performance of the cone valve at different outlet test pressure points, the performance of the cone valve under different working conditions can be comprehensively evaluated, providing an important basis for the design and optimization of the product. A large amount of vibration signals, cavitation images, and inlet and outlet pressure values are collected during the test process, which provides rich data support for the performance evaluation of the cone valve and helps to find potential problems and improve them. Through the analysis of the third data information, the performance variation trend of the cone valve under different pressures can be understood, providing a scientific basis for the design optimization and performance improvement of the cone valve. The automatic control and data acquisition system improves the test efficiency, can quickly and accurately complete the test process and obtain the required data, and shortens the product development cycle.

[0232] In an embodiment of the present application, the range setting module comprises:

[0233] A first upper limit calculation module is configured to calculate an upper limit value corresponding to the first pressure increasing gradient range.

[0234]

[0235] wherein P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range; P c represents the test opening value of the cone valve corresponding to the current test; P e represents the opening value corresponding to the full opening of the cone valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P cup represents the upper limit value of the pressure adjustment gradient of the outlet pressure of the cone valve;

[0236] A first lower limit calculation module is configured to calculate a lower limit value corresponding to the first pressure increasing gradient range.

[0237]

[0238] wherein P rdown01 represents the lower limit value corresponding to the first pressure increasing gradient range; P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range; P c represents the test opening value of the cone valve corresponding to the current test; P e represents the opening value corresponding to the full opening of the cone valve; P rup01 represents the upper limit value corresponding to the first pressure increasing gradient range;

[0239] a second upper limit calculation module configured to calculate an upper limit value corresponding to a second boost gradient range;

[0240]

[0241] wherein P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents a test opening value of the conical valve corresponding to the current test; ω e represents an opening value corresponding to full opening of the conical valve; P mr represents a target inlet pressure value; P mc represents a target outlet pressure value; P c01 represents a first outlet test pressure; P c02 represents a second outlet test pressure; P rup01 represents an upper limit value corresponding to a first boost gradient range;

[0242] a second lower limit calculation module configured to calculate a lower limit value corresponding to the second boost gradient range;

[0243]

[0244] wherein P rdown02 represents the lower limit value corresponding to the second boost gradient range; P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to full opening of the conical valve;

[0245] a third upper limit calculation module configured to calculate an upper limit value corresponding to a third boost gradient range;

[0246]

[0247] wherein P rup03 represents the upper limit value corresponding to the third boost gradient range; P rup01 represents the upper limit value corresponding to the first boost gradient range; P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to full opening of the conical valve;

[0248] a third lower limit calculation module configured to calculate a lower limit value corresponding to the third boost gradient range;

[0249]

[0250] wherein P rdown03 represents the lower limit value corresponding to the third boost gradient range; Prup03 represents the upper limit value corresponding to the third pressure boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve.

[0251] The working principle of the above technical solution is as follows: the calculation of the upper limit value (P rup01 ) takes into account the test opening (ω c ) of the conical valve, the full opening (ω e ), the target inlet pressure (P mr ), the target outlet pressure (P mc ), and the first outlet test pressure (P c01 ). At the same time, the upper limit value of the pressure regulation gradient (Pcup) of the outlet pressure rise is also referred to, to ensure the reasonableness of the pressure increase. The lower limit value (P rdown01 ) is calculated based on the upper limit value (P rup01 ) and the current test opening (ω c ), etc., to ensure the stability of the pressure increase. The calculation of the upper limit value (P rup02 ) takes into account the same parameters as the first pressure boost gradient range, and also includes the second outlet test pressure (P c02 ), so as to set an appropriate pressure increase gradient before reaching the second test point.

[0252] The lower limit value (P rdown02 ) is calculated based on the upper limit value (P rup02 ) of the second pressure boost gradient range and other related parameters. The calculation of the upper limit value (P rup03 ) is based on the upper limit values (P rup01 and P rup02 ) of the first two pressure boost gradient ranges, as well as the test opening (ω c ) of the conical valve, etc., to ensure that the pressure increase gradient before reaching the third test point is coordinated with the previous two test stages. The calculation of the lower limit value (P rdown03 ) is related to the upper limit value (P rup03 ) of the third pressure boost gradient range and other related parameters. These calculated pressure boost gradient ranges are used to control the increase process of the conical valve inlet pressure, to ensure that the test process is carried out within the predetermined pressure range, and to be able to set appropriate pressure increase gradients for different test stages.

[0253] The effect of the above technical scheme is that: through the pressure increase gradient range calculated according to the current opening degree of the conical valve, the target pressure and the test point and other parameters, the increase process of the inlet pressure of the conical valve can be accurately controlled, and it is ensured that the test process is carried out in the predetermined pressure range, and the accuracy and reliability of the test are improved. Reasonable pressure increase gradient setting can avoid sudden pressure impact on the conical valve during the test process, thereby reducing the risk of equipment damage or personal injury during the test process, and improving the safety of the test. Testing in different pressure increase gradient ranges can collect more performance data of the conical valve under different pressures, provide rich data support for performance evaluation of the conical valve, and help to find potential problems and improve them. Through analysis of the test data, the performance change trend of the conical valve under different pressures can be understood, which provides a scientific basis for design optimization and performance improvement of the conical valve, and helps to improve the overall performance of the product. Through the automatic control and data acquisition system combined with the accurately set pressure increase gradient range, the test process can be quickly and accurately completed and the required data can be obtained, and the test efficiency is improved, and the product development cycle is shortened.

[0254] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A method of testing the flow capacity of a conical valve, characterized by, The conical valve flow capacity test method comprises: extracting test requirement information, and obtaining a test opening value corresponding to the conical valve according to the test requirement information; at a test initial time corresponding to each opening value, target pressure adjustment is performed on inlet pressure and outlet pressure of the conical valve, and test running and data recording are started to obtain first data information; the outlet pressure of the conical valve is raised until cavitation bubbles in a cavity of the conical valve disappear, and second data information is obtained; the inlet pressure of the conical valve is increased, and third data information of the conical valve in an increased inlet pressure state is recorded; the flow capacity of the conical valve is evaluated according to the first data information, the second data information and the third data information, and an evaluation result is obtained.

2. The method of claim 1, wherein, at a test initial time corresponding to each opening value, target pressure adjustment is performed on inlet pressure and outlet pressure of the conical valve, and test running and data recording are started to obtain first data information, comprising: extracting a test opening value of the conical valve corresponding to current test; obtaining a target inlet pressure value and a target outlet pressure value of the conical valve according to the test opening value of the conical valve; adjusting the inlet pressure of the conical valve to the target inlet pressure value; wherein the target inlet pressure value is obtained by the following formula: P mr = P min - a · (P max - P min ) P mr represents a target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to the rated working pressure range of the conical valve; α represents a first adjustment coefficient; and the first adjustment coefficient is obtained by the following formula: ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; adjusting the outlet pressure of the conical valve to the target outlet pressure value; wherein the target outlet pressure value is obtained by the following formula: P mc = (1 + β) · P min P mc represents a target outlet pressure value; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; β represents a second adjustment coefficient; and the second adjustment coefficient is obtained by the following formula: wherein P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; P mr represents the target inlet pressure value; when the test running is stable, vibration signals and cavitation images under a stable test running condition are collected, and inlet and outlet pressure and flow data of the conical valve at present are recorded; the vibration signals and the cavitation images and the inlet and outlet pressure and flow data of the conical valve are taken as the first data information.

3. The method of claim 2, wherein, the outlet pressure of the conical valve is raised until cavitation bubbles in a cavity of the conical valve disappear, and second data information is obtained, comprising: extracting the target inlet pressure value and the target outlet pressure; extracting a test opening value of the conical valve corresponding to current test; obtaining an upper limit value and a lower limit value of a pressure adjustment gradient in a single pressure adjustment during outlet pressure rising of the conical valve according to the test opening value of the conical valve in combination with the target inlet pressure value and the target outlet pressure; wherein the upper limit value and the lower limit value of the pressure adjustment gradient in the outlet pressure rising of the conical valve are obtained by the following formula: P cup represents an upper limit value of a pressure regulating gradient indicating an increase in the outlet pressure of the conical valve; P mc represents a target outlet pressure value; P mr represents a target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; α represents a first regulating coefficient; and β represents a second regulating coefficient. wherein P cdown represents the lower limit value of the pressure regulation gradient; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P cup represents the upper limit value of the pressure regulation gradient; setting a pressure adjustment gradient according to the upper limit value and the lower limit value of the pressure gradient in the outlet pressure rising of the conical valve; adjusting the outlet pressure of the conical valve according to the pressure adjustment gradient until cavitation bubbles in the cavity of the conical valve disappear; collecting vibration signals and cavitation images under the condition that the cavitation bubbles in the cavity disappear and inlet and outlet pressure and flow data of the conical valve as the second data information.

4. The method of claim 1, wherein, the inlet pressure of the conical valve is increased, and third data information of the conical valve in an increased inlet pressure state is recorded, comprising: extracting test requirement information; obtaining a first outlet test pressure, a second outlet test pressure and a third outlet test pressure corresponding to the conical valve according to the test requirement information; setting a first pressure increasing gradient range, a second pressure increasing gradient range and a third pressure increasing gradient range corresponding to the inlet pressure of the conical valve according to the first outlet test pressure, the second outlet test pressure and the third outlet test pressure; According to the first pressure gradient range, a first pressure gradient is set, and the inlet pressure of the tapered valve is increased according to the first pressure gradient until the outlet pressure of the tapered valve reaches a first outlet test pressure, and vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the tapered valve reaches the first outlet test pressure are recorded. According to the second pressure gradient range, a second pressure gradient is set, and the inlet pressure of the tapered valve is increased according to the second pressure gradient until the outlet pressure of the tapered valve reaches a second outlet test pressure, and vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the tapered valve reaches the second outlet test pressure are recorded. According to the third pressure gradient range, a third pressure gradient is set, and the inlet pressure of the tapered valve is increased according to the third pressure gradient until the outlet pressure of the tapered valve reaches a third outlet test pressure, and vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the tapered valve reaches the third outlet test pressure are recorded. The vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the tapered valve reaches the first outlet test pressure, the vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the tapered valve reaches the second outlet test pressure, and the vibration signals and cavitation images and inlet and outlet pressure values when the outlet pressure of the tapered valve reaches the third outlet test pressure are corresponding data parameters of the third data information.

5. The method of claim 4, wherein, The first pressure gradient range, the second pressure gradient range and the third pressure gradient range are obtained by the following formula: P rup01 represents the upper limit value corresponding to the first boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P cup represents the upper limit value of the pressure regulation gradient of the outlet pressure rise of the conical valve; P rdown01 represents the lower limit value corresponding to the first supercharging gradient range; P rup01 represents the upper limit value corresponding to the first supercharging gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P rup01 represents the upper limit value corresponding to the first supercharging gradient range; P rup02 represents the upper limit value corresponding to the second pressure boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P c02 represents the second outlet test pressure; P rup01 represents the upper limit value corresponding to the first pressure boost gradient range; P rdown02 represents the lower limit value corresponding to the second pressure gradient range; P rup02 represents the upper limit value corresponding to the second pressure gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P rup03 represents the upper limit value corresponding to the third pressure boost gradient range; P rup01 represents the upper limit value corresponding to the first pressure boost gradient range; P rup02 represents the upper limit value corresponding to the second pressure boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P rdown03 represents the lower limit value corresponding to the third pressure gradient range; P rup03 represents the upper limit value corresponding to the third pressure gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve.

6. A conical valve flow capacity testing system characterized by, The tapered valve flow capacity test system comprises: An opening value extraction module is configured to extract test requirement information and obtain a test opening value corresponding to the tapered valve according to the test requirement information. A first data acquisition module is configured to adjust the inlet pressure and the outlet pressure of the tapered valve to target pressure values at a test initial time corresponding to each opening value, start test operation and data recording, and acquire first data information. A second data acquisition module is configured to increase the outlet pressure of the tapered valve until cavitation bubbles in the tapered valve cavity disappear, and acquire second data information. A third data acquisition module is configured to increase the inlet pressure of the tapered valve and record third data information under the condition that the inlet pressure of the tapered valve is increased. A capacity evaluation module is configured to evaluate the flow capacity of the tapered valve according to the first data information, the second data information and the third data information, and obtain an evaluation result.

7. The conical valve flow capacity test system of claim 6, wherein, The first data acquisition module comprises: A test opening value extraction module is configured to extract a test opening value corresponding to the tapered valve for the current test. A pressure value acquisition module is configured to obtain target inlet pressure values and target outlet pressure values of the tapered valve according to the test opening value of the tapered valve. An inlet pressure adjustment calculation module is configured to adjust the inlet pressure of the tapered valve to the target inlet pressure values; wherein the target inlet pressure values are obtained by the following formula: P mr = P min - a · (P max - P min ) P mr represents a target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; P max represents a maximum working pressure corresponding to the rated working pressure range of the conical valve; and α represents a first adjustment coefficient, and the first adjustment coefficient is obtained by the following formula: ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; An outlet pressure adjustment calculation module is configured to adjust the outlet pressure of the tapered valve to the target outlet pressure values; wherein the target outlet pressure values are obtained by the following formula: P mc = (1 + β) - P min P mc represents a target outlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; β represents a second adjustment coefficient; and the second adjustment coefficient is obtained by the following formula: wherein P min represents the minimum working pressure corresponding to the rated working pressure range of the conical valve; P max represents the maximum working pressure corresponding to the rated working pressure range of the conical valve; P mr represents the target inlet pressure value; The data recording module is configured to collect vibration signals and cavitation images under stable test operation, and record current inlet and outlet pressure and flow data of the conical valve when the stable test operation is stable. The vibration signals and cavitation images and the inlet and outlet pressure and flow data of the conical valve are taken as first data information.

8. The conical valve flow capacity test system of claim 7, wherein, The second data acquisition module comprises: The pressure extraction module is configured to extract the target inlet pressure value and the target outlet pressure. The test opening value extraction module is configured to extract a test opening value of the conical valve corresponding to the current test. The limit value adjustment calculation module is configured to obtain upper and lower limit values of a pressure adjustment gradient corresponding to a single pressure adjustment in an outlet pressure rising process of the conical valve according to the test opening value of the conical valve in combination with the target inlet pressure value and the target outlet pressure. P cup represents an upper limit value of a pressure regulating gradient of an outlet pressure rise of the conical valve; P mc represents a target outlet pressure value; P mr represents a target inlet pressure value; P min represents a minimum working pressure corresponding to a rated working pressure range of the conical valve; α represents a first regulating coefficient; and β represents a second regulating coefficient. wherein P cdown represents the lower limit value of the pressure regulation gradient; P mc represents the target outlet pressure value; P mr represents the target inlet pressure value; P cup represents the upper limit value of the pressure regulation gradient; The gradient setting module is configured to set the pressure adjustment gradient according to the upper and lower limit values of the pressure gradient of the outlet pressure rising of the conical valve. The rising adjustment module is configured to perform rising adjustment on the outlet pressure of the conical valve according to the pressure adjustment gradient until cavitation bubbles in the cavity of the conical valve disappear. The second acquisition module is configured to collect vibration signals and cavitation images and inlet and outlet pressure and flow data of the conical valve under the condition that the cavitation bubbles in the cavity disappear as second data information.

9. The conical valve flow capacity test system of claim 6, wherein, The third data acquisition module comprises: The test pressure acquisition module is configured to extract test requirement information. The first outlet test pressure, the second outlet test pressure and the third outlet test pressure corresponding to the conical valve are obtained according to the test requirement information. The range setting module is configured to set a first pressure increasing gradient range, a second pressure increasing gradient range and a third pressure increasing gradient range corresponding to the inlet pressure of the conical valve according to the first outlet test pressure, the second outlet test pressure and the third outlet test pressure. The first test recording module is configured to set a first pressure increasing gradient according to the first pressure increasing gradient range, and increase the inlet pressure of the conical valve according to the first pressure increasing gradient until the outlet pressure of the conical valve reaches the first outlet test pressure, and record vibration signals and cavitation images and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the first outlet test pressure. The second test recording module is configured to set a second pressure increasing gradient according to the second pressure increasing gradient range, and increase the inlet pressure of the conical valve according to the second pressure increasing gradient until the outlet pressure of the conical valve reaches the second outlet test pressure, and record vibration signals and cavitation images and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the second outlet test pressure. The third test recording module is configured to set a third pressure increasing gradient according to the third pressure increasing gradient range, and increase the inlet pressure of the conical valve according to the third pressure increasing gradient until the outlet pressure of the conical valve reaches the third outlet test pressure, and record vibration signals and cavitation images and inlet and outlet pressure values under the condition that the outlet pressure of the conical valve reaches the third outlet test pressure. The third acquisition module is configured to acquire, as third data information, data parameters corresponding to the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the first outlet test pressure, the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the second outlet test pressure, and the vibration signal and cavitation image and the inlet and outlet pressure values when the outlet pressure of the conical valve reaches the third outlet test pressure.

10. The conical valve flow capacity test system of claim 9, wherein, The range setting module comprises: A first upper limit calculation module configured to calculate an upper limit value corresponding to the first pressure increase gradient range; P rup01 represents the upper limit value corresponding to the first boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P cup represents the upper limit value of the pressure regulation gradient of the outlet pressure rise of the conical valve; A first lower limit calculation module configured to calculate a lower limit value corresponding to the first pressure increase gradient range; P rdown01 represents the lower limit value corresponding to the first supercharging gradient range; P rup01 represents the upper limit value corresponding to the first supercharging gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P rup01 represents the upper limit value corresponding to the first supercharging gradient range; A second upper limit calculation module configured to calculate an upper limit value corresponding to the second pressure increase gradient range; P rup02 represents the upper limit value corresponding to the second boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; P mr represents the target inlet pressure value; P mc represents the target outlet pressure value; P c01 represents the first outlet test pressure; P c02 represents the second outlet test pressure; P rup01 represents the upper limit value corresponding to the first boost gradient range; A second lower limit calculation module configured to calculate a lower limit value corresponding to the second pressure increase gradient range; P rdown02 represents the lower limit value corresponding to the second pressure gradient range; P rup02 represents the upper limit value corresponding to the second pressure gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; A third upper limit calculation module configured to calculate an upper limit value corresponding to the third pressure increase gradient range; P rup03 represents the upper limit value corresponding to the third pressure boost gradient range; P rup01 represents the upper limit value corresponding to the first pressure boost gradient range; P rup02 represents the upper limit value corresponding to the second pressure boost gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve; A third lower limit calculation module configured to calculate a lower limit value corresponding to the third pressure increase gradient range; P rdown03 represents the lower limit value corresponding to the third pressure gradient range; P rup03 represents the upper limit value corresponding to the third pressure gradient range; ω c represents the test opening value of the conical valve corresponding to the current test; ω e represents the opening value corresponding to the full opening of the conical valve.

Images