Orbital ball valve control method and orbital ball valve

Abstract

This application is applicable to the field of ball valve control technology, and particularly relates to a control method for an orbital ball valve and an orbital ball valve. The method is applied to an orbital ball valve. The output end of the orbital ball valve is connected to the input end of a downstream ball valve through a pipeline. The axis of the valve body passage of the orbital ball valve is parallel to the axis of the pipeline. The method detects that the downstream ball valve performs a first operation; obtains the water hammer excitation data of the first operation; and controls the orbital ball valve to perform a second operation according to the water hammer excitation data. By detecting the intensity of the water hammer phenomenon caused by the downstream ball valve, this method controls the rotation of the valve body of the orbital ball valve connected to the input end of the downstream ball valve, so that the fluid flow rate in the pipeline decreases and the flow velocity slows down, which can reduce the pressure peak value in the pipeline and the intensity of the water hammer phenomenon, protect the pipeline and the orbital ball valve, extend the service life of components such as the pipeline and the orbital ball valve, and can improve the stability of the fluid transmission system, enhance safety, and optimize the overall energy efficiency of the system.

Description

Technical Field

[0001] This application belongs to the technical field of ball valve control, and particularly relates to a control method for an orbital ball valve and an orbital ball valve. Background Art

[0002] An orbital ball valve is a valve that achieves opening and closing by rotating a spherical valve body, and is mainly used to cut off, distribute, and change the flow direction of fluids in a pipeline.

[0003] In the prior art, when an orbital ball valve is quickly opened or closed, due to the drastic change in the flow velocity of the fluid in the pipeline, a water hammer phenomenon will occur in the pipeline, causing the orbital ball valve or the pipeline to be impacted, resulting in damage to the orbital ball valve or the pipeline. Summary of the Invention

[0004] The embodiments of this application provide a control method for an orbital ball valve and an orbital ball valve, which can solve the technical problem that the orbital ball valve or the pipeline is damaged due to the water hammer phenomenon occurring when the orbital ball valve is quickly opened or closed.

[0005] In a first aspect, the embodiments of this application provide a control method for an orbital ball valve, which is applied to an orbital ball valve. The output end of the orbital ball valve is connected to the input end of a downstream ball valve through a pipeline, and the axis of the valve body passage of the orbital ball valve is parallel to the axis of the pipeline. The method includes:

[0006] Detect that the downstream ball valve is performing a first operation; wherein, the first operation is used to rotate the valve body of the downstream ball valve;

[0007] Obtain the water hammer excitation data of the first operation; wherein, the water hammer excitation data is used to represent the intensity of the water hammer phenomenon caused by the first operation in the pipeline;

[0008] According to the water hammer excitation data, control the orbital ball valve to perform a second operation; wherein, the second operation is used to rotate the valve body of the orbital ball valve until the axis of the valve body passage is not parallel to the axis of the pipeline, thereby slowing down the flow velocity of the fluid in the pipeline and reducing the intensity of the water hammer phenomenon.

[0009] The above technical solutions in the embodiments of this application have at least the following technical effects:

[0010] This method detects that a first operation for rotating the valve body of the downstream ball valve is performed on the downstream ball valve, obtains water hammer excitation data of the first operation for representing the intensity of the water hammer phenomenon caused by the first operation in the pipeline, and controls the orbital ball valve to perform a second operation according to the water hammer excitation data, so that the valve body of the orbital ball valve rotates until the axis of the valve body passage is not parallel to the axis of the pipeline, thereby slowing down the fluid flow rate in the pipeline and reducing the intensity of the water hammer phenomenon. This method controls the rotation of the valve body of the upstream orbital ball valve connected to the input end of the downstream ball valve through the pipeline by detecting the intensity of the water hammer phenomenon caused by the opening or closing of the downstream ball valve, reducing the fluid flow rate and slowing down the flow velocity in the pipeline, so as to reduce the pressure peak value of the fluid in the pipeline, reduce the intensity of the water hammer phenomenon, protect the pipeline and the orbital ball valve, extend the service life of components such as the pipeline and the orbital ball valve, and improve the stability of the fluid transmission system, enhance safety, optimize energy use, and improve the overall energy efficiency of the system.

[0011] In a possible implementation manner of the first aspect, the detecting that the downstream ball valve is performed with the first operation includes:

[0012] Obtain the valve body rotation speed data of the downstream ball valve;

[0013] When it is detected that the valve body rotation speed data is greater than zero, it is determined that the downstream ball valve is performed with the first operation.

[0014] In a possible implementation manner of the first aspect, the obtaining the water hammer excitation data of the first operation includes:

[0015] Obtain the pipeline flow velocity data; wherein, the pipeline flow velocity data represents the flow velocity of the fluid flowing in the pipeline;

[0016] According to the valve body rotation speed data and the pipeline flow velocity data, obtain the water hammer excitation data.

[0017] In a possible implementation manner of the first aspect, the obtaining the water hammer excitation data according to the valve body rotation speed data and the pipeline flow velocity data includes:

[0018] According to the valve body rotation speed data, obtain a flow velocity increase coefficient; wherein, the flow velocity increase coefficient is used to reflect the influence degree of the valve body rotation speed on the flow velocity of the fluid in the pipeline;

[0019] According to the pipeline flow velocity data and the flow velocity increase coefficient, obtain the water hammer excitation data.

[0020] In a possible implementation manner of the first aspect, the controlling the orbital ball valve to perform the second operation according to the water hammer excitation data includes:

[0021] Obtain pipeline pressure data;

[0022] Obtain pipeline pressure-bearing strength data;

[0023] Obtain the buffer correlation curve of the rotation angle data and the pipeline flow rate data of the track ball valve; the buffer correlation curve is used to reflect the relationship between the rotation angle data of the track ball valve and the fluid flow rate percentage data;

[0024] Obtain the rotation angle data of the track ball valve according to the water hammer excitation data, the pipeline pressure data, the pipeline pressure-bearing strength data, the pipeline flow rate data and the buffer correlation curve;

[0025] Control the track ball valve to perform the second operation according to the rotation angle data.

[0026] In a possible implementation manner of the first aspect, the obtaining the rotation angle data of the track ball valve according to the water hammer excitation data, the pipeline pressure data, the pipeline pressure-bearing strength data, the pipeline flow rate data and the buffer correlation curve includes:

[0027] Subtract the pipeline pressure-bearing strength data from the sum of the water hammer excitation data and the pipeline pressure data to obtain the water hammer pressure data to be buffered;

[0028] Obtain the flow rate percentage data to be buffered according to the water hammer pressure data to be buffered;

[0029] Match the flow rate percentage data to be buffered on the buffer correlation curve to obtain the rotation angle data.

[0030] In a possible implementation manner of the first aspect, the number of the track ball valves is at least one; when the number of the track ball valves is multiple, the input end of the track ball valve is communicated with the output end of the adjacent track ball valve through the pipeline, and the output end of the track ball valve closest to the downstream ball valve is communicated with the input end of the downstream ball valve; the controlling the track ball valve to perform the second operation according to the water hammer excitation data further includes:

[0031] Obtain buffer limit data according to the buffer correlation curve;

[0032] Determine the linkage quantity data of the track ball valves according to the water hammer excitation data, the pipeline pressure-bearing strength data and the buffer limit data; wherein, the linkage quantity data represents the number of the track ball valves performing the second operation;

[0033] Determine the number of the track ball valves performing the second operation according to the linkage quantity data.

[0034] In a possible implementation of the first aspect, after controlling the orbital ball valve to perform a second operation according to the water hammer excitation data, the method further includes:

[0035] Real-time detecting multi-dimensional state information in the pipeline; wherein, the multi-dimensional state information includes pressure data and fluid flow rate data in the pipeline;

[0036] Judging the presence of water hammer in the pipeline according to the multi-dimensional state information;

[0037] When the presence of water hammer indicates that the water hammer phenomenon has disappeared, controlling the orbital ball valve to perform a reset operation; wherein, the reset operation means rotating the valve body of the orbital ball valve until the axis of the valve body passage rotates to be parallel to the axis of the pipeline.

[0038] In a possible implementation of the first aspect, before detecting that the downstream ball valve is performing a first operation, the method further includes:

[0039] Obtaining pre-buffering requirement information; wherein, the pre-buffering requirement information is used to represent the possibility that the first operation will cause a water hammer phenomenon in the pipeline;

[0040] When the pre-buffering requirement information indicates that the first operation will cause a water hammer phenomenon in the pipeline, controlling the orbital ball valve to perform a third operation; wherein, the third operation is used to rotate the valve bodies of the downstream ball valve and the orbital ball valve until the included angle between the axis of the valve body passage and the axis of the pipeline is equal to a preset buffering angle.

[0041] In a possible implementation of the first aspect, the obtaining of the pre-buffering requirement information includes:

[0042] Obtaining environmental information; wherein, the environmental information includes personnel movement information near the downstream ball valve and pipeline operation data;

[0043] Determining the pre-buffering requirement information according to the environmental information.

[0044] In a possible implementation of the first aspect, the determining of the pre-buffering requirement information according to the environmental information includes:

[0045] Obtaining downstream ball valve correlation data according to the personnel movement information and the pipeline operation data; wherein, the downstream ball valve correlation data is used to represent the degree of mutual influence between the movement of personnel near the downstream ball valve, the pipeline operation data and the downstream ball valve;

[0046] Determining the downstream ball valve correlation data as the pre-buffering requirement information.

[0047] In a second aspect, an embodiment of the present application provides an orbital ball valve control system, which is applied to an orbital ball valve. The output end of the orbital ball valve is communicated with the input end of a downstream ball valve through a pipeline. The axis of the valve body passage of the orbital ball valve is parallel to the axis of the pipeline. The orbital ball valve control system includes:

[0048] A detection unit, which is used to detect that the downstream ball valve performs a first operation; wherein, the first operation is used to rotate the valve body of the downstream ball valve;

[0049] An acquisition unit, which is used to acquire the water hammer excitation data of the first operation; wherein, the water hammer excitation data is used to represent the intensity of the water hammer phenomenon caused by the first operation in the pipeline;

[0050] A control unit, which is used to control the orbital ball valve to perform a second operation according to the water hammer excitation data; wherein, the second operation is used to rotate the valve body of the orbital ball valve until the axis of the valve body passage is not parallel to the axis of the pipeline, so as to slow down the fluid flow rate in the pipeline and reduce the intensity of the water hammer phenomenon.

[0051] In a third aspect, an embodiment of the present application provides an orbital ball valve, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described in any one of the above first aspects is implemented.

[0052] In a fourth aspect, an embodiment of the present application provides a computer program product. When the computer program product runs on an orbital ball valve, the orbital ball valve is enabled to execute the orbital ball valve control method described in any one of the above first aspects.

[0053] It can be understood that the beneficial effects of the above second aspect to the fourth aspect can refer to the relevant descriptions in the above first aspect, and will not be elaborated here. Description of the Drawings

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0055] Figure 1 It is a schematic flow chart of the orbital ball valve control method provided by an embodiment of the present application;

[0056] Figure 2It is a schematic diagram of the implementation process of step S100 in the orbital ball valve control method provided by an embodiment of the present application;

[0057] Figure 3 It is a schematic diagram of the implementation process of step S200 in the orbital ball valve control method provided by an embodiment of the present application;

[0058] Figure 4 It is a schematic diagram of the implementation process of step S220 in the orbital ball valve control method provided by an embodiment of the present application;

[0059] Figure 5 It is a partial schematic diagram of the implementation process of step S300 in the orbital ball valve control method provided by an embodiment of the present application;

[0060] Figure 6 It is a schematic diagram of the implementation process of step S340 in the orbital ball valve control method provided by an embodiment of the present application;

[0061] Figure 7 It is another partial schematic diagram of the implementation process of step S300 in the orbital ball valve control method provided by another embodiment of the present application;

[0062] Figure 8 It is another partial schematic diagram of the process of the orbital ball valve control method provided by an embodiment of the present application;

[0063] Figure 9 It is yet another partial schematic diagram of the process of the orbital ball valve control method provided by an embodiment of the present application;

[0064] Figure 10 It is a schematic diagram of the implementation process of step S01 in the orbital ball valve control method provided by an embodiment of the present application;

[0065] Figure 11 It is a schematic diagram of the implementation process of step S012 in the orbital ball valve control method provided by an embodiment of the present application;

[0066] Figure 12 It is a schematic diagram of the structure of the orbital ball valve control system provided by an embodiment of the present application;

[0067] Figure 13 It is a schematic diagram of the structure of the orbital ball valve and the pipeline where it is located provided by an embodiment of the present application;

[0068] Figure 14 It is a schematic diagram of the structure of the control device of the orbital ball valve provided by an embodiment of the present application.

[0069] Among them, the reference numerals in the figure:

[0070] 100, orbital ball valve; 10, control device; 200, downstream ball valve. Detailed implementation manners

[0071] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system architectures, technologies, etc. are presented in order to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0072] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0073] It should also be understood that the term "and / or" as used in the specification of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0074] As used in the specification of the present application and the appended claims, the term "if" can be interpreted as "when", "once", "in response to determining", or "in response to detecting" depending on the context. Similarly, the phrase "if determined" or "if [the described condition or event] is detected" can be interpreted as meaning "once determined", "in response to determining", "once [the described condition or event] is detected", or "in response to detecting [the described condition or event]" depending on the context.

[0075] In addition, in the description of the specification of the present application and the appended claims, the terms "first", "second", "third", etc. are only used for differentiating descriptions and cannot be understood as indicating or implying relative importance.

[0076] The reference to "one embodiment" or "some embodiments" etc. described in the specification of the present application means that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0077] In the related art, when an orbital ball valve is rapidly opened or closed, due to the drastic change in the flow velocity of the fluid in the pipeline, a water hammer phenomenon will occur in the pipeline, causing the orbital ball valve or the pipeline to be impacted, resulting in damage to the orbital ball valve or the pipeline.

[0078] To solve the above problems, an embodiment of the present application provides a method for controlling an orbital ball valve. This method is applied to an orbital ball valve. The output end of the orbital ball valve is connected to the input end of a downstream ball valve through a pipeline. The axis of the valve body passage of the orbital ball valve is parallel to the axis of the pipeline. This method detects that the downstream ball valve is performing a first operation; wherein, the first operation is used to rotate the valve body of the downstream ball valve; obtains the water hammer excitation data of the first operation; wherein, the water hammer excitation data is used to represent the intensity of the water hammer phenomenon caused by the first operation in the pipeline; controls the orbital ball valve to perform a second operation according to the water hammer excitation data; wherein, the second operation is used to rotate the valve body of the orbital ball valve so that the axis of the valve body passage is not parallel to the axis of the pipeline, thereby slowing down the flow velocity of the fluid in the pipeline and reducing the intensity of the water hammer phenomenon. This method controls the rotation of the valve body of the upstream orbital ball valve connected to the input end of the downstream ball valve through the pipeline by detecting the intensity of the water hammer phenomenon caused by the opening or closing of the downstream ball valve, reducing the fluid flow rate and flow velocity in the pipeline, so as to reduce the pressure peak value of the fluid in the pipeline, reduce the intensity of the water hammer phenomenon, protect the pipeline and the orbital ball valve, extend the service life of components such as the pipeline and the orbital ball valve, and can improve the stability of the fluid transmission system, improve the safety of the pipeline, optimize the energy usage plan of the pipeline system, and improve the overall energy efficiency of the pipeline system.

[0079] The method for controlling an orbital ball valve provided by an embodiment of the present application can be applied to an orbital ball valve. At this time, the orbital ball valve is the execution subject of the method for controlling an orbital ball valve provided by an embodiment of the present application. The embodiment of the present application does not impose any restrictions on the specific type of the orbital ball valve.

[0080] For example, please refer to Figure 13 , the output end of the orbital ball valve 100 is connected to the input end of the downstream ball valve 200 through a pipeline. The axis of the valve body passage of the orbital ball valve 100 is parallel to the axis of the pipeline. The orbital ball valve 100 includes an orbital ball valve body and a control device 10. The orbital ball valve body is the main part for the orbital ball valve 100 to realize the basic functions of the ball valve. For example, various types of controllable orbital ball valves in the prior art can be adopted. The control device 10 is used to control the operation of the orbital ball valve body. The control device 10 can be a single-chip microcomputer, a microcontroller, a programmable automation controller, or other processing devices connected to a wireless modem, etc.

[0081] To better understand the method for controlling an orbital ball valve provided by an embodiment of the present application, the following provides an exemplary introduction to the specific implementation process of the method for controlling an orbital ball valve provided by an embodiment of the present application.

[0082] Figure 1 The figure shows a schematic flowchart of the orbital ball valve control method provided by an embodiment of the present application. The orbital ball valve control method includes:

[0083] S100, detecting that the downstream ball valve 200 is subjected to a first operation; wherein, the first operation is used to rotate the valve body of the downstream ball valve 200.

[0084] It can be understood that the first operation can be performed by an operator on the downstream ball valve 200, or a signal receiver and a driving device can be installed on the valve stem of the first ball valve, and the driving device is triggered to start by receiving a signal to rotate the valve stem, thereby rotating the valve body, but it is not limited thereto. The downstream ball valve 200 and the orbital ball valve 100 are arranged on the same pipeline. The input end of the downstream ball valve 200 is connected to the output end of the orbital ball valve 100 through a pipeline, and the fluid flows through the orbital ball valve 100 to the downstream ball valve 200. The rotation of the valve body of the downstream ball valve 200 will cause a change in the flow rate of the fluid in the pipeline. When the change in the flow rate of the fluid is severe, a water hammer phenomenon will occur.

[0085] As an optional embodiment of the present application, please refer to Figure 2 , S100, detecting that the downstream ball valve 200 is subjected to a first operation, includes:

[0086] S110, obtaining the valve body rotation speed data of the downstream ball valve 200.

[0087] It can be understood that whether the downstream ball valve 200 is opened or closed, the rotation of the valve body will cause a change in the flow rate of the fluid in the pipeline. The faster the rotation speed of the valve body of the downstream ball valve 200, the more severe the change in the flow rate of the fluid in the pipeline. The valve body rotation speed data of the downstream ball valve 200 is proportional to the intensity of the water hammer phenomenon caused. The valve body rotation speed data can be obtained by installing a rotary encoder on the driving device of the downstream ball valve 200 and reading the signal of the rotary encoder; or a speed sensor can be used to measure the valve body of the downstream ball valve 200 to obtain the valve body rotation speed data, but it is not limited thereto.

[0088] S120, when it is detected that the valve body rotation speed data is greater than zero, determining that the downstream ball valve 200 is subjected to the first operation.

[0089] It can be understood that when it is detected that the valve body rotation speed data is greater than zero, it can be determined that the valve body of the downstream ball valve 200 rotates, that is, the downstream ball valve 200 is subjected to the first operation.

[0090] With such a configuration, by acquiring the valve body rotation speed data of the downstream ball valve 200, it is possible to intuitively determine whether the downstream ball valve 200 has been subjected to the first operation, which is not easily disturbed by other environmental factors, thereby ensuring the accuracy of the data and providing a prerequisite for subsequent judgment of the intensity of the water hammer phenomenon.

[0091] S200, obtaining water hammer excitation data of a first operation; wherein the water hammer excitation data is used to indicate the intensity of the water hammer phenomenon caused by the first operation in the pipeline.

[0092] It can be understood that the first operation causes the valve body of the downstream ball valve 200 to rotate, which will cause the flow rate of the fluid in the pipeline to change. The valve body rotation speed data is proportional to the water hammer excitation data. The faster the valve body rotation speed of the downstream ball valve 200, the more drastic the change in the flow rate of the fluid in the pipeline, and the greater the intensity of the water hammer phenomenon occurring in the pipeline.

[0093] As an optional embodiment of this application, please refer to Figure 3 , S200, obtaining water hammer excitation data of the first operation, including:

[0094] S210, obtaining pipeline flow rate data; wherein the pipeline flow rate data represents the flow rate of the fluid in the pipeline.

[0095] It can be understood that the pipeline flow rate data can be obtained by installing a flow meter on the pipeline between the downstream ball valve 200 and the track ball valve 100 and obtaining the flow rate through the reading of the flow meter, or by setting a Venturi tube on the pipeline and calculating the flow rate by measuring the pressure difference of the fluid flowing through the reduced diameter section, but it is not limited to this.

[0096] S220, obtaining water hammer excitation data according to the valve body rotation speed data and the pipeline flow rate data.

[0097] It can be understood that the rotation of the valve body will cause the flow rate of the fluid in the pipeline to change. The greater the valve body rotation speed data of the downstream ball valve 200, the more drastic the change in the flow rate of the fluid in the pipeline. After executing the first operation, the greater the pipeline flow rate data in the pipeline, the greater the water hammer excitation data.

[0098] Optionally, see Figure 4 , S220, according to the valve body rotation speed data and pipeline flow rate data, obtain water hammer excitation data, including;

[0099] S2201, obtaining a flow rate amplification coefficient according to the valve body rotation speed data; wherein the flow rate amplification coefficient is used to reflect the magnitude of the influence of the valve body rotation speed on the flow rate of the fluid in the pipeline.

[0100] It can be understood that the faster the valve body of the downstream ball valve 200 rotates, the more drastic the change in the flow velocity of the fluid in the pipeline. Multiple experiments can be conducted by establishing a physical pipeline model and a ball valve model in the laboratory to test the change in the flow velocity of the fluid in the pipeline when the valve body of the downstream ball valve 200 rotates at different speeds, and calculate the average value of multiple values to obtain the flow velocity increase coefficient based on the value obtained by dividing the flow velocity data of the fluid in the pipeline after the valve body rotates by the flow velocity data of the fluid in the pipeline before the valve body rotates; or computational fluid dynamics (CFD) software can be used for numerical simulation to simulate the fluid flow conditions at different valve body rotation speeds. Through the simulation results, the flow velocity in the pipeline after the valve body rotates corresponding to different valve body rotation speeds can be obtained, calculate the ratio of the flow velocity in the pipeline after the valve body rotates to the flow velocity in the pipeline before the valve body rotates, and determine the average value of multiple ratios as the flow velocity increase coefficient, but not limited to this.

[0101] S2202. Obtain water hammer excitation data based on the pipeline flow velocity data and the flow velocity increase coefficient.

[0102] Exemplarily, water hammer excitation data can be calculated based on the pipeline flow velocity data and the flow velocity increase coefficient. According to the calculation formula of the water hammer effect "ΔP = 0.5 * ρ * (V 2 2 - V 1 2 )", where "ΔP" is the water hammer excitation data, representing the magnitude of the pressure change caused by the water hammer phenomenon in the pipeline, "ρ" is the density data of the fluid, "V 1 " is the pipeline flow velocity data, "V 2 " is the flow velocity data of the fluid in the pipeline after performing the first operation. Multiply the pipeline flow velocity data by the flow velocity increase coefficient to obtain "V 2 ". Among them, the density data of the fluid can be pre-sampled and measured in the laboratory with a hydrometer or measured with a vibrating tube densitometer, but not limited to this. For example, it can be assumed that the fluid in the pipeline is "pure water", the density "ρ" of "pure water" is 1000 kg / m³, the pipeline flow velocity data "V 1 " in the pipeline is 10 m / s, and the flow velocity increase coefficient is "1.3". The flow velocity data "V 2 " of the fluid in the pipeline after performing the first operation can be obtained as "13 m / s (10 * 1.3 = 13)". According to the formula, the water hammer excitation data "ΔP" can be obtained as "34500 Pa (0.5 * 1000 * (169 - 100) = 34500)"; or it can be assumed that the fluid in the pipeline is "gasoline", the density "ρ" of "gasoline" is 750 kg / m³, the initial flow velocity "V 1 " in the pipeline is 5 m / s, and the flow velocity increase coefficient is "3". The flow velocity data "V 2"It is "15m / s (5 * 3 = 15)", and according to the formula, the water hammer excitation data "ΔP" is "75000Pa (0.5 * 750 * (225 - 25) = 75000)". It should be noted that the values given above do not represent actual data and are only set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0103] With such a setting, by detecting the rotational speed data of the valve body of the downstream ball valve 200, the flow velocity increase coefficient is obtained. Furthermore, after the valve body of the downstream ball valve 200 performs the first operation, the change in the flow velocity of the fluid in the pipeline can be obtained. By calculating the change in the flow velocity of the fluid in the pipeline, based on the pipeline flow velocity data and the flow velocity increase coefficient, the water hammer excitation data can be obtained. In this way, the intensity of the water hammer phenomenon can be calculated in advance, and corresponding preventive measures can be taken according to the intensity of the water hammer phenomenon, optimizing the pipeline system to reduce the damage caused by the water hammer phenomenon to the pipeline, improving the safety of the pipeline, and optimizing the energy usage plan of the pipeline system.

[0104] S300, according to the water hammer excitation data, control the orbital ball valve 100 to perform a second operation; wherein, the second operation is used to rotate the valve body of the orbital ball valve 100 so that the axis of the valve body passage is not parallel to the axis of the pipeline, thereby slowing down the flow velocity of the fluid in the pipeline and reducing the intensity of the water hammer phenomenon.

[0105] It can be understood that by rotating the valve body of the orbital ball valve 100 so that the axis of the valve body passage is not parallel to the axis of the pipeline, the flow velocity of the fluid passing through the orbital ball valve 100 can be reduced. According to the formula "ΔP = 0.5 * ρ * (V 2 2 -V 1 2 )", reducing the flow velocity of the fluid can reduce the change in the pressure in the pipeline, and thus reduce the intensity of the water hammer phenomenon. A signal receiver and a driving device can be installed on the orbital ball valve 100. The signal receiver receives a signal and sends a signal to start the driving device. The output end of the driving device is connected to the valve stem or valve handle of the orbital ball valve 100 so that the driving device can drive the valve body of the orbital ball valve 100 to rotate. Among them, the signal receiver can be an MCU, a single-chip microcomputer, a data processing chip, etc., and the driving device can be a servo motor or a stepping motor, etc., but it is not limited thereto.

[0106] As an optional embodiment of the present application, please refer to Figure 5 , S300, according to the water hammer excitation data, control the orbital ball valve 100 to perform a second operation, including:

[0107] S310, obtain pipeline pressure data;

[0108] It can be understood that the pipeline pressure data can be obtained by setting a pressure gauge on the pipeline or a piezoresistive pressure sensor on the pipeline, but it is not limited to this.

[0109] S320. Obtain the pipeline pressure-bearing strength data.

[0110] Exemplarily, the pipeline pressure-bearing strength data represents the upper limit of the pressure that the pipeline can withstand. The maximum working pressure of the pipeline can be obtained by checking the material standard of the pipeline, or the allowable pressure of the pipeline can be obtained by checking the design and manufacturing standards on the pipeline label, but it is not limited to this. For example, it can be assumed that the pipeline used is a plastic pipe, and the pipeline pressure-bearing strength data is "0.3 MPa", or it can be assumed that the pipeline used is a cast iron pipeline, and the pipeline pressure-bearing strength data is "0.8 MPa". It should be noted that the above given values do not represent actual data, but are set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0111] S330. Obtain the buffer correlation curve of the rotation angle data of the orbital ball valve 100 and the pipeline flow rate data; the buffer correlation curve is used to reflect the relationship between the rotation angle data of the orbital ball valve 100 and the fluid flow rate percentage data.

[0112] Exemplarily, the buffer correlation curve is used to reflect the relationship between the rotation angle data of the orbital ball valve 100 and the pipeline flow rate data. Multiple experiments can be carried out by establishing a physical pipeline model and a ball valve model in the laboratory to test the change of the pipeline flow rate data of the fluid in the pipeline when the valve body of the orbital ball valve 100 rotates to different rotation angles. The fluid flow rate percentage data represents the percentage of the current pipeline flow rate data relative to the pipeline flow rate data before the first operation is performed. According to the data of multiple tests, the buffer correlation curve is drawn with the rotation angle data and the fluid flow rate percentage data as the horizontal and vertical coordinates respectively; or computational fluid dynamics (CFD) software can be used for numerical simulation to simulate the fluid flow situation in the pipeline at different valve body rotation angles of the orbital ball valve 100, and through the simulation results, the buffer correlation curve with the rotation angle data and the fluid flow rate percentage data as the horizontal and vertical coordinates is obtained, but it is not limited to this. For example, it can be assumed that when the rotation angle data is "30°", the fluid flow rate is moderated to "75%" of the initial flow rate; or when the rotation angle data is "45°", the fluid flow rate is moderated to "50%" of the initial flow rate. It should be noted that the above given values do not represent actual data, but are set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0113] S340. Obtain the rotation angle data of the orbital ball valve 100 according to the water hammer excitation data, the pipeline pressure data, the pipeline pressure-bearing strength data and the buffer correlation curve.

[0114] It can be understood that the peak pressure in the pipeline can be obtained based on the water hammer excitation data and the pipeline pressure data. By comparing the peak pressure in the pipeline with the pipeline pressure-bearing strength data, the pressure data that needs to be buffered and reduced by the orbital ball valve 100 can be obtained. According to the pressure data that needs to be reduced, the fluid flow velocity data that needs to be reduced can be calculated. Furthermore, based on the reduced fluid flow velocity data, the rotation angle data of the orbital ball valve 100 can be matched on the buffer correlation curve.

[0115] Optionally, please refer to Figure 6 , S340, to obtain the rotation angle data of the orbital ball valve 100 based on the water hammer excitation data, the pipeline pressure-bearing strength data, and the buffer correlation curve, including:

[0116] S3401, subtract the pipeline pressure-bearing strength data from the sum of the water hammer excitation data and the pipeline pressure data to obtain the water hammer pressure data to be buffered.

[0117] It can be understood that the water hammer pressure data to be buffered represents the pressure exceeding the pipeline pressure-bearing strength data that needs to be buffered and reduced by the orbital ball valve.

[0118] S3402, obtain the flow velocity percentage data to be buffered based on the water hammer pressure data to be buffered.

[0119] Exemplarily, the flow velocity percentage data to be buffered represents the percentage value of reducing the fluid flow velocity data flowing through the downstream ball valve to the original fluid flow velocity data that needs to be buffered by the orbital ball valve. Calculate the sum of the water hammer excitation data and the pipeline pressure data to obtain the peak value of the pressure in the pipeline. Set the pipeline safety pressure data according to the pipeline pressure-bearing strength data. Compare the size of the peak pressure in the pipeline and the pipeline safety pressure data. If the peak pressure in the pipeline is greater than the pipeline safety pressure data, adjust the rotation angle data of the orbital ball valve 100 to reduce the peak pressure in the pipeline. According to the formula "ΔP = 0.5 * ρ * (V 2 2 -V 1 2 )", it can be known that the water hammer pressure is related to the fluid flow velocity in the pipeline. In this formula, "V 1 " is the fluid flow velocity data after buffering, "V 2" is the fluid flow rate after buffering multiplied by the flow rate increase coefficient, "ΔP" is the water hammer pressure data to be buffered, "ρ" is the fluid density, and the percentage data of the flow rate to be buffered is the fluid flow rate after buffering divided by the fluid flow rate data before the downstream ball valve body rotates in the above embodiment. For example, it can be assumed that the fluid in the pipeline is "pure water", the density "ρ" of "pure water" is 1000 kg / m³, the initial flow rate "V" in the pipeline is 10 m / s, and the flow rate increase coefficient is "1.3". The water hammer excitation data can be calculated to be "30000 Pa (0.03 MPa)", and the pipeline pressure data is "0.24 MPa". When the water hammer phenomenon occurs in the pipeline, the peak pressure in the pipeline is "0.27 MPa". Assuming the pipeline is a plastic pipe and the pipeline pressure-bearing strength data is "0.3 MPa", considering the safety of pipeline operation and setting the safety factor to "0.85", the pipeline safety pressure data can be obtained as "0.255 MPa". The peak pressure in the pipeline is greater than the pipeline safety pressure data, and the orbital ball valve 100 needs to be adjusted to reduce the peak pressure in the pipeline. The maximum allowable value of the water hammer excitation data is "0.015 MPa (0.255 - 0.24 = 0.015)". According to the above calculation formula of the water hammer effect, the initial flow rate in the pipeline after adjustment can be obtained as "6.6 m / s ([15000 * 2 / 1000 / (1.3 2 -1 2 )] 0.5 = 6.6)", that is, the percentage data of the flow rate to be buffered is "66% (6.6 / 10 = 0.66)", indicating that the fluid flow rate after passing through the orbital ball valve is eased to "66%" of the flow rate before the downstream ball valve body rotates. It should be noted that the above given values do not represent actual data, but are only set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0120] S3403. Match according to the percentage data of the flow rate to be buffered on the buffering correlation curve to obtain the rotation angle data.

[0121] It can be understood that the buffering correlation curve uses the rotation angle data and the fluid flow rate percentage data as the data of the horizontal and vertical coordinate axes respectively. The corresponding rotation angle data can be matched according to the fluid flow rate percentage data on the buffering correlation curve. For example, it can be assumed that when the fluid flow rate percentage data is "66%", the corresponding rotation angle data can be obtained as "35°" according to the buffering correlation curve. It should be noted that the above given values do not represent actual data, but are only set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0122] S350. Control the orbital ball valve 100 to perform the second operation according to the rotation angle data.

[0123] With such a setting, the pressure data that needs to be buffered is obtained from the water hammer excitation data, pipeline pressure data, and pipeline pressure-bearing strength data. Then, through calculation, accurate rotation angle data is matched on the buffer correlation curve. By controlling the rotation of the valve body of the orbital ball valve 100 with the rotation angle data, the intensity of the water hammer phenomenon can be reduced while ensuring that the fluid in the pipeline flows at the maximum flow rate that the pipeline can withstand. Thus, while protecting the pipeline system, improving the safety and stability of the pipeline system, the operating efficiency of the pipeline system can be maintained at a good level, and energy consumption can be effectively reduced, and the working life of the system can be extended.

[0124] As an optional embodiment of the present application, please refer to Figure 7 , the number of the orbital ball valves 100 is at least one; when the number of the orbital ball valves 100 is multiple, the input end of the orbital ball valve 100 is connected to the output end of the adjacent orbital ball valve 100 through a pipeline, and the output end of the orbital ball valve 100 closest to the downstream ball valve 200 is connected to the input end of the downstream ball valve 200.

[0125] It can be understood that when the number of the orbital ball valves 100 is multiple, the orbital ball valve 100 closest to the downstream ball valve can be used as the main orbital ball valve for data calculation and sending linkage signals, and the other orbital ball valves 100 do not need to perform data calculation but only serve as secondary orbital ball valves for receiving signals from the main orbital ball valve. The secondary orbital ball valve controls the valve body according to the calculation result and the signal sent by the main orbital ball valve.

[0126] As an optional embodiment of the present application, according to the water hammer excitation data, controlling the orbital ball valve 100 to perform the second operation further includes:

[0127] S360, obtaining buffer limit data according to the buffer correlation curve.

[0128] Exemplarily, the buffer limit data represents the percentage data of the fluid flow rate that the orbital ball valve 100 can reduce when the rotation angle of the valve body of the orbital ball valve 100 is the largest. To maintain the continuous flow of the fluid in the pipeline, the orbital ball valve 100 cannot be completely closed, and the rotation angle of the valve body of the orbital ball valve 100 has a maximum value. The percentage data of the fluid flow rate that can be matched on the buffer correlation curve, that is, the buffer limit data, also has a corresponding maximum value. For example, the maximum value of the rotation angle data can be set to "45°", and according to the percentage data of the fluid flow rate corresponding to the buffer correlation curve, that is, the buffer limit data can be "50%"; or the maximum value of the rotation angle data can be set to "60°", and according to the percentage data of the fluid flow rate corresponding to the buffer correlation curve, that is, the buffer limit data can be "70%". It should be noted that the above given values do not represent actual data and are only set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0129] S370. Determine the linkage quantity data of the orbital ball valve 100 based on the water hammer excitation data, the pipeline pressure-bearing strength data, and the buffer limit data; wherein, the linkage quantity data represents the number of orbital ball valves 100 that perform the second operation.

[0130] It can be understood that when the water hammer excitation data is too large and the buffer limit of one orbital ball valve 100 is not sufficient to reduce the pipeline pressure peak to within the pipeline pressure-bearing strength range, multiple orbital ball valves 100 need to act together to reduce the initial flow rate reaching the downstream ball valve. Calculate the sum of the water hammer excitation data and the pipeline pressure data to obtain the pipeline pressure peak, obtain the pressure to be buffered based on the difference between the pipeline pressure peak and the pipeline pressure-bearing strength data, obtain the flow rate of the fluid in the pipeline after buffering according to the calculation formula of the water hammer effect, obtain the fluid flow rate percentage data based on the ratio of the fluid flow rate data before buffering to the fluid flow rate data after buffering, compare the size of the fluid flow rate percentage data with the buffer limit data, and then obtain the linkage quantity data. For example, it can be assumed that the fluid in the pipeline is "gasoline", the density "ρ" of "gasoline" is 750 kg / m³, the initial flow rate "V" in the pipeline is 5 m / s, and the flow rate increase coefficient is "3". The water hammer excitation data can be calculated as "0.0345 MPa", the pipeline pressure data is "0.67 MPa", and the pipeline pressure peak is "0.7045 MPa". Assume that the pipeline is a cast iron pipeline and the pipeline pressure-bearing strength data is "0.8 MPa". Set the pipeline safety factor to "0.85", and the pipeline safety pressure data can be obtained as "0.68 MPa (0.8 * 0.85 = 0.68)". The pressure to be buffered is "0.0245 MPa (0.7045 - 0.68 = 0.0245)". According to the calculation formula of the water hammer effect, the initial flow rate in the pipeline after adjustment is "2.47 m / s ([24500 * 2 / 1000 / (3 2 -1 2 ) 0.5 = 2.47)". Assume that the maximum value of the rotation angle data of one orbital ball valve 100 can be set to "45°", and the corresponding buffer limit data is "50%". The initial flow rate in the pipeline after adjustment is less than the initial flow rate after the maximum buffer of one orbital ball valve 100 (2.47 < 2.5 = 5 * 50%), and greater than the initial flow rate after the maximum buffer of two orbital ball valves 100 (2.47 > 1.25 = 5 * 50% * 50%). This indicates that one orbital ball valve 100 is not sufficient to reduce the pipeline pressure peak to within the pipeline pressure-bearing strength range, and 2 orbital ball valves 100 need to act together. The linkage quantity data of the orbital ball valve 100 can be determined as "2". It should be noted that the values given above do not represent actual data and are only set for easy understanding. The specific data depends on the actual situation and will not be elaborated here.

[0131] S380. Determine the number of the orbital ball valves 100 that perform the second operation according to the linkage quantity data.

[0132] With such a setting, the number of the orbital ball valves 100 that perform the second operation is determined according to the linkage quantity data. The pressure and flow rate in the pipeline can be gradually changed by multiple orbital ball valves 100, reducing the pressure mutation. The multiple orbital ball valves 100 can provide a more refined flow rate adjustment ability with a larger adjustment range, thereby more effectively controlling the water hammer phenomenon and reducing the intensity of the water hammer effect. Moreover, the multiple orbital ball valves 100 can form a redundant control system. When some of the orbital ball valves 100 fail, the other orbital ball valves 100 can still work normally to ensure the normal operation of the pipeline system, effectively improving the reliability of the entire pipeline system.

[0133] As an optional embodiment of the present application, please refer to Figure 8 , after controlling the orbital ball valves 100 to perform the second operation according to the water hammer excitation data, the orbital ball valve control method further includes:

[0134] S10. Real-time detect the multi-dimensional state information in the pipeline; wherein, the multi-dimensional state information includes the pressure data and the fluid flow rate data in the pipeline.

[0135] It can be understood that the multi-dimensional state information in the pipeline, such as the pressure data and the fluid flow rate data in the pipeline, can be used to reflect the operating state of the pipeline system and determine whether there are faults or other situations that may cause abnormal operation of the pipeline system in the pipeline. The pressure data at different parts of the pipeline can be obtained by setting multiple pressure gauges on the pipeline or setting multiple pressure sensors electrically connected to the control device 10 in the pipeline, but not limited thereto. The fluid flow rate data can be obtained by respectively setting multiple flow meters at multiple parts on the pipeline and reading the readings of the flow meters, or by setting multiple Venturi tubes and calculating the fluid flow rate data by measuring the pressure difference of the fluid flowing through the reduced diameter section, but not limited thereto.

[0136] S20. Judge the presence of water hammer in the pipeline according to the multi-dimensional state information.

[0137] Exemplarily, when the variation range of the pressure data or fluid flow rate data in the pipeline exceeds a preset value within a preset time, it can be determined that the water hammer presence situation in the pipeline indicates that there is a water hammer phenomenon in the pipeline. For example, assume that the preset time is 1 s and the preset variation range is 15%. When the variation range of the pressure data or fluid flow rate data in the pipeline exceeds 15% within 1 s, it is determined that the water hammer presence situation in the pipeline indicates that there is a water hammer phenomenon in the pipeline; or assume that the preset time is 0.5 s and the preset variation range is 10%. When the variation range of the pressure data or fluid flow rate data in the pipeline exceeds 10% within 0.5 s, it can be determined that the water hammer presence situation in the pipeline indicates that there is a water hammer phenomenon in the pipeline; otherwise, it can be regarded that there is no water hammer phenomenon in the pipeline. It should be noted that the above given values do not represent actual data, but are set for convenience of understanding. The specific data depends on the actual situation and will not be elaborated here.

[0138] S30, when the water hammer presence situation indicates that the water hammer phenomenon has disappeared, control the orbital ball valve 100 to perform a reset operation; wherein, the reset operation means rotating the valve body of the orbital ball valve 100 until the axis of the valve body passage rotates to be parallel to the axis of the pipeline.

[0139] It can be understood that when the pressure data or fluid flow rate data in the pipeline recovers and remains in a stable state, it can be determined that the water hammer presence situation indicates that the water hammer phenomenon in the pipeline has disappeared. For example, when the variation range of the pressure data or fluid flow rate data in the pipeline is lower than 10% within 1 s, or the variation range of the pressure data or fluid flow rate data in the pipeline is lower than 10% within 0.5 s, it can be determined that the water hammer presence situation indicates that the water hammer phenomenon in the pipeline has disappeared. It should be noted that the above given values do not represent actual data, but are set for convenience of understanding. The specific data depends on the actual situation and will not be elaborated here.

[0140] With such a setting, when it is determined that the water hammer phenomenon in the pipeline has disappeared, it is necessary to control the orbital ball valve 100 to perform a reset operation, so that the fluid flow rate slowed down by the orbital ball valve 100 is restored to normal, and then the flow rate of the pipeline system is restored to the normal level. Automatic reset can reduce the workload of the operator, and can ensure that the fluid in the pipeline flows at the designed flow rate, meet the production requirements, improve the conveying efficiency of the system, reduce the running time of the equipment under abnormal working conditions, and extend the service life of the equipment.

[0141] As an optional embodiment of the present application, please refer to Figure 9 , before detecting that the downstream ball valve 200 is performing the first operation, the orbital ball valve control method further includes:

[0142] S01, obtain pre-buffer demand information; wherein, the pre-buffer demand information is used to represent the possibility that the first operation will cause a water hammer phenomenon in the pipeline.

[0143] It can be understood that before the first operation is executed, pre-buffering requirement information can be obtained to pre-judge the possibility of the first operation causing a water hammer phenomenon in the pipeline.

[0144] Optionally, refer to Figure 10 , S01, to obtain pre-buffering requirement information, including:

[0145] S011, obtain environmental information; wherein, the environmental information includes the personnel movement information and pipeline operation data near the downstream ball valve 200.

[0146] It can be understood that the environmental information includes the personnel movement information and pipeline operation data near the downstream ball valve 200. The personnel movement information may include the movement direction and movement speed of the personnel near the downstream ball valve 200. The movement direction and movement speed of the personnel near the downstream ball valve 200 can be obtained by setting a camera or an infrared sensor on the valve body of the downstream ball valve 200, but not limited thereto. The pipeline operation data includes pressure data or fluid flow rate data in multiple pipelines, and the pressure data or fluid flow rate data in the pipeline can be obtained by setting a pressure gauge or a flow meter on the pipeline.

[0147] S012, determine the pre-buffering requirement information according to the environmental information.

[0148] It can be understood that according to the environmental information, the working environment where the downstream ball valve 200 is located can be obtained, and the working condition that the downstream ball valve 200 will be in can be inferred, and then the pre-buffering requirement information can be determined.

[0149] In a possible embodiment, refer to Figure 11 , S012, to determine the pre-buffering requirement information according to the environmental information, including:

[0150] S0121, obtain the downstream ball valve correlation data according to the personnel movement information and pipeline operation data; wherein, the downstream ball valve correlation data is used to represent the degree of mutual influence between the movement of the personnel near the downstream ball valve 200, the pipeline operation data and the downstream ball valve 200.

[0151] It can be understood that according to the movement direction and movement speed in the personnel movement information, the movement direction towards the downstream ball valve and the movement direction not towards the downstream ball valve can be respectively assigned preset correlation values, corresponding correlation values can be preset according to the magnitude of the movement speed, and corresponding correlation values can be preset according to the pipeline fault conditions indicated by the pressure data or fluid flow rate data in the pipeline operation data. The multiple correlation values are added to obtain the downstream ball valve correlation data. For example, assume that the personnel movement information indicates that someone is approaching the downstream ball valve 200 at a speed of 2 m / s, and at the same time, it is detected that the change amplitude of the pressure data or fluid flow rate data in the pipeline within the preset time of 1 s is greater than the preset value of 15%, it is determined that a pipeline fault has occurred. The operator discovers the fault and will perform a first operation on the downstream ball valve 200. The correlation value "20%" can be assigned to the movement direction towards the downstream ball valve in the movement information, the corresponding correlation value "20%" for the movement speed of "2 m / s", and the corresponding correlation value "30%" for the pipeline fault. Then the downstream ball valve correlation data is "70% (20% + 20% + 30% = 70%)"; or assume that the personnel movement information indicates that no one is moving towards the downstream ball valve 200, and at the same time, it is detected that the change amplitude of the pressure data or fluid flow rate data in the pipeline within the preset time of 0.5 s is greater than the preset value of 10%. At this time, the pipeline has a fault but no staff has discovered it. The correlation values corresponding to the movement direction and movement speed in the movement information can be set to "0%", and the corresponding correlation value "50%" for the pipeline fault. The downstream ball valve correlation data can be set to "50% (0% + 0% + 50% = 50%)". It should be noted that the above given values do not represent actual data, but are set for convenience of understanding. The specific data depends on the actual situation and will not be elaborated here.

[0152] S0122, determine the downstream ball valve correlation data as the pre-buffer demand information.

[0153] With such a setting, according to the personnel movement information and pipeline operation data in the environmental information, the pre-buffer demand information for judging the possibility of the first operation causing a water hammer phenomenon in the pipeline can be obtained, and preventive measures can be taken to avoid damage to the pipeline due to the water hammer phenomenon, thereby saving maintenance and replacement costs, improving the safety of the pipeline system, reducing transmission interruptions, and improving the transmission efficiency of the system.

[0154] S02, when the pre-buffer demand information indicates that the first operation will cause a water hammer phenomenon in the pipeline, control the orbital ball valve 100 to perform a third operation; wherein, the third operation is used to rotate the valve body of the downstream ball valve 200 and the valve body of the orbital ball valve 100 to an angle between the axis of the valve body passage and the axis of the pipeline equal to the preset buffer angle.

[0155] It can be understood that a standard data can be preset. When the pre-buffering requirement information indicates a value higher than the preset standard data, it means that the pre-buffering requirement information indicates that the first operation will cause a water hammer phenomenon in the pipeline. The preset buffering angle can be preset manually or by the control device 10 according to the pipeline operation requirements. For example, it can be set to "15°" or "30°", but it is not limited thereto.

[0156] With such a setting, by judging the possibility of the first operation causing a water hammer phenomenon and controlling the valve body of the orbital ball valve 100 to rotate to the preset angle in advance, the stability of the pipeline system can be improved, the response speed of the orbital ball valve 100 can be increased, thereby reducing the damage caused by the water hammer phenomenon to the pipeline system, reducing the losses caused by repair and replacement due to the water hammer phenomenon, improving the conveying efficiency of the system, reducing the operation time of the equipment under abnormal working conditions, and extending the service life of the equipment.

[0157] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0158] Corresponding to the orbital ball valve control method described in the above embodiments, an embodiment of the present application also provides an orbital ball valve control system. Each unit of this system can implement each step of the orbital ball valve control method. Figure 12 The structural block diagram of the orbital ball valve control system provided by the embodiment of the present application is shown. For the sake of convenience of description, only the parts related to the embodiment of the present application are shown.

[0159] Referring to Figure 12 , this system includes:

[0160] A detection unit, which is used to detect that the downstream ball valve 200 is performing a first operation; wherein, the first operation is used to rotate the valve body of the downstream ball valve 200.

[0161] An acquisition unit, which is used to acquire the water hammer excitation data of the first operation; wherein, the water hammer excitation data is used to represent the intensity of the water hammer phenomenon caused by the first operation in the pipeline.

[0162] A control unit, which is used to control the orbital ball valve 100 to perform a second operation according to the water hammer excitation data; wherein, the second operation is used to rotate the valve body of the orbital ball valve 100 so that the axis of the valve body passage is not parallel to the axis of the pipeline, thereby slowing down the fluid flow rate in the pipeline and reducing the intensity of the water hammer phenomenon.

[0163] It should be noted that, for the content such as information interaction and execution process among the above units, since it is based on the same concept as the method embodiment of the present application, for its specific functions and the technical effects brought, reference can be specifically made to the method embodiment part, and details will not be repeated here.

[0164] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above division of each functional unit is used as an example for illustration. In practical applications, the above functions can be allocated to different functional units according to needs, that is, the internal structure of the system is divided into different functional units to complete all or part of the functions described above. Each functional unit in the embodiment can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit are only for the convenience of mutual distinction and do not limit the protection scope of the present application. The specific working process of the units in the above system can refer to the corresponding process in the foregoing method embodiment, and details will not be repeated here.

[0165] The embodiment of the present application also provides a track ball valve 100. Figure 14 It is a schematic structural diagram of a control device 10 adopted by the track ball valve 100 provided in an embodiment of the present application. As Figure 14 shown, the control device 10 of this embodiment includes: at least one processor 11 ( Figure 14 only one is shown in the figure), at least one memory 12 ( Figure 14 only one is shown in the figure), and a computer program 13 stored in the at least one memory 12 and executable on the at least one processor 11. When the processor 11 executes the computer program 13, the control device 10 implements the steps in any of the above-described track ball valve control method embodiments, or enables the control device 10 to implement the functions of each unit in the above system embodiments.

[0166] Exemplarily, the computer program 13 can be divided into one or more units, and the one or more units are stored in the memory 12 and executed by the processor 11 to complete the present application. The one or more units can be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program 13 in the control device 10.

[0167] The control device 10 can be a computing device such as a single-chip microcomputer, a microcontroller, a programmable automation controller, or other processing devices connected to a wireless modem. The control device 10 may include, but is not limited to, a processor 11 and a memory 12. Those skilled in the art can understand thatFigure 14 This is only an example of the control device 10 and does not constitute a limitation on the control device 10. It may include more or fewer components than those shown in the figure, or combine certain components, or different components. For example, it may also include input / output devices, network access devices, buses, etc.

[0168] The processor 11 may be a central processing unit (CPU), and the processor 11 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0169] In some embodiments, the memory 12 may be an internal storage unit of the control device 10, such as the hard disk or memory of the control device 10. In other embodiments, the memory 12 may also be an external storage device of the control device 10, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the control device 10. Further, the memory 12 may also include both the internal storage unit and the external storage device of the control device 10. The memory 12 is used to store an operating system, application programs, a boot loader, data, and other programs, such as the program code of the computer program. The memory 12 may also be used to temporarily store data that has been output or will be output.

[0170] The embodiment of the present application also provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0171] The embodiment of the present application provides a computer program product, and when the computer program product runs on an orbital ball valve, the orbital ball valve implements the steps in any of the above method embodiments.

[0172] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above method embodiments of this application, a computer program can be used to instruct relevant hardware to complete. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the orbital ball valve, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disc, etc. In some jurisdictions, according to legislation and patent practice, the computer-readable medium cannot be an electrical carrier signal and a telecommunication signal.

[0173] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0174] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0175] In the embodiments provided in this application, it should be understood that the disclosed orbital ball valve and orbital ball valve control system can be implemented in other ways. For example, the above-described embodiments of the orbital ball valve control system are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be in an electrical, mechanical or other form.

[0176] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0177] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A track ball valve control method, characterized in that: Applied to a track ball valve, the output end of the track ball valve is connected to the input end of a downstream ball valve through a pipeline, and the axis of the valve body channel of the track ball valve is parallel to the axis of the pipeline. The method includes: It is detected that a first operation is performed on the downstream ball valve; wherein the first operation is used to rotate the valve body of the downstream ball valve; Acquiring water hammer excitation data of the first operation; wherein the water hammer excitation data is used to indicate the intensity of the water hammer phenomenon caused by the first operation in the pipeline; According to the water hammer excitation data, the track ball valve is controlled to perform a second operation; wherein the second operation is used to rotate the valve body of the track ball valve until the axis of the valve body channel is not parallel to the axis of the pipeline, thereby slowing down the flow rate of the fluid in the pipeline and reducing the intensity of the water hammer phenomenon; The step of controlling the track ball valve to perform a second operation according to the water hammer excitation data includes: Obtain pipeline pressure data; Obtain pipeline pressure strength data; Obtaining a buffer correlation curve between the rotation angle data of the track ball valve and the pipeline flow rate data; the buffer correlation curve is used to reflect the relationship between the rotation angle data of the track ball valve and the fluid flow rate percentage data; The rotation angle data of the track ball valve is obtained according to the water hammer excitation data, the pipeline pressure data, the pipeline pressure strength data, the pipeline flow rate data and the buffer correlation curve; including: subtracting the pipeline pressure strength data from the sum of the water hammer excitation data and the pipeline pressure data to obtain the water hammer pressure data to be buffered; obtaining the flow rate percentage data to be buffered according to the water hammer pressure data to be buffered; obtaining the rotation angle data according to matching the flow rate percentage data to be buffered on the buffer correlation curve; and controlling the track ball valve to perform the second operation according to the rotation angle data.

2. The orbital ball valve control method according to claim 1, characterized in that: The detecting that the downstream ball valve is subjected to a first operation comprises: Acquiring valve body rotation speed data of the downstream ball valve; When it is detected that the valve body rotation speed data is greater than zero, it is determined that the downstream ball valve is performing the first operation.

3. The orbital ball valve control method according to claim 2, characterized in that: The obtaining of water hammer excitation data of the first operation includes: Acquiring pipeline flow rate data; wherein the pipeline flow rate data represents the flow rate of the fluid in the pipeline; The water hammer excitation data is obtained according to the valve body rotation speed data and the pipeline flow rate data.

4. The orbital ball valve control method according to claim 3, characterized in that: The step of obtaining the water hammer excitation data according to the valve body rotation speed data and the pipeline flow rate data comprises: According to the valve body rotation speed data, a flow rate amplification coefficient is obtained; wherein the flow rate amplification coefficient is used to reflect the magnitude of the influence of the valve body rotation speed on the flow rate of the fluid in the pipeline; The water hammer excitation data is obtained according to the pipeline flow velocity data and the flow velocity amplification coefficient.

5. The orbital ball valve control method according to claim 1, characterized in that: The number of the track ball valve is at least one; when the number of the track ball valve is multiple, the input end of the track ball valve is connected to the output end of the adjacent track ball valve through the pipeline, and the output end of the track ball valve closest to the downstream ball valve is connected to the input end of the downstream ball valve; the controlling the track ball valve to perform the second operation according to the water hammer excitation data also includes: Obtaining buffer limit data according to the buffer correlation curve; Determine linkage quantity data of the track ball valve according to the water hammer excitation data, the pipeline pressure strength data and the buffer limit data; wherein the linkage quantity data indicates the number of the track ball valves performing the second operation; The number of the track ball valves that perform the second operation is determined according to the linkage quantity data.

6. The orbital ball valve control method according to claim 1, characterized in that: After controlling the track ball valve to perform a second operation according to the water hammer excitation data, the method further includes: Real-time detection of multi-dimensional state information in the pipeline; wherein the multi-dimensional state information includes pressure data and fluid flow rate data in the pipeline; determining the presence of water hammer in the pipeline according to the multi-dimensional status information; When the water hammer condition indicates that the water hammer phenomenon has disappeared, the track ball valve is controlled to perform a reset operation; wherein the reset operation means rotating the valve body of the track ball valve until the axis of the valve body channel rotates to be parallel to the axis of the pipeline.

7. The orbital ball valve control method according to claim 1, characterized in that: Before detecting that the downstream ball valve is subjected to a first operation, the method further includes: Acquiring pre-buffering requirement information; wherein the pre-buffering requirement information is used to indicate the possibility that the first operation will cause a water hammer phenomenon in the pipeline; When the pre-buffering requirement information indicates that the first operation will cause water hammer phenomenon in the pipeline, the track ball valve is controlled to perform a third operation; wherein, the third operation is used to rotate the valve body of the downstream ball valve and the valve body of the track ball valve until the angle between the axis of the valve body channel and the axis of the pipeline is equal to a preset buffer angle.

8. The orbital ball valve control method according to claim 7, characterized in that: The obtaining of pre-buffering requirement information includes: Acquiring environmental information; wherein the environmental information includes personnel movement information and pipeline operation data near the downstream ball valve; The pre-buffering requirement information is determined according to the environment information.

9. The orbital ball valve control method according to claim 8, characterized in that: The determining the pre-buffering requirement information according to the environment information includes: According to the personnel movement information and the pipeline operation data, downstream ball valve correlation data is obtained; wherein the downstream ball valve correlation data is used to indicate the degree of mutual influence between the movement of personnel near the downstream ball valve and the pipeline operation data and the downstream ball valve; The downstream ball valve correlation data is determined as the pre-buffering requirement information.

10. A track ball valve, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 9 is implemented.

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