Control Method, Processor, Device and Storage Medium for Pneumatic-Hydraulic Actuator

Abstract

An embodiment of the present application provides a control method, a processor, a device, and a storage medium for a gas-liquid actuator. The method includes: obtaining the maximum operating pressure of a gas transmission pipeline and the performance parameters of the gas-liquid actuator, where the maximum operating pressure refers to the highest pressure that can be achieved inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline; determining a first design pressure of the gas-liquid actuator according to the maximum operating pressure and the performance parameters; obtaining a second design pressure of the gas transmission pipeline; determining the maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure; and determining the opening pressure of the safety valve according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the opening pressure.

Description

Technical Field

[0001] This application relates to the field of long-distance oil and gas pipelines, and specifically relates to a control method, a processor, a device, and a storage medium for a gas-liquid actuator. Background Art

[0002] The gas-liquid actuator is an actuator of an emergency shut-off valve for a natural gas pipeline. During actual use, the gas-liquid actuator often uses the natural gas in the gas transmission pipeline as a power source. After receiving an execution signal, the natural gas inside the gas-liquid actuator compresses the hydraulic oil to drive the gas-liquid actuator, thereby controlling the opening or closing of the emergency shut-off valve. In the prior art, a check valve is often connected between the gas transmission pipeline and the gas-liquid actuator. When the internal pressure of the gas transmission pipeline is greater than the pressure of the gas-liquid actuator, the gas can flow unidirectionally from the gas transmission pipeline into the gas-liquid actuator, so that the internal pressure of the gas-liquid actuator remains relatively high. The pressure that the pressure-bearing components of the gas-liquid actuator can withstand is limited. When the internal pressure of the gas-liquid actuator reaches a preset value, the safety valve of the gas-liquid actuator will open to release the gas, thereby reducing the internal pressure.

[0003] However, the pressure of the natural gas pipeline is relatively high, and the ambient temperature changes greatly. When a relatively high pressure is input into the gas-liquid actuator at a low temperature, the internal pressure of the gas-liquid actuator will further increase when the internal temperature of the gas-liquid actuator rises. The pressure received by the pressure-bearing components of the gas-liquid actuator will be higher than the internal pressure of the gas transmission pipeline. In the prior art, when setting the safety valve opening pressure value with the design pressure level (or the maximum pressure value that can be withstood) of the gas transmission pipeline as the design pressure level (or the maximum pressure value that can be withstood) of the gas-liquid actuator, it will cause the safety valve of the gas-liquid actuator to trip frequently, releasing natural gas, resulting in potential safety hazards at the site. If the warning pressure of the gas-liquid actuator is significantly increased, it will cause the gas-liquid actuator not to release gas under high pressure, which will further lead to damage to the pressure-bearing components. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a control method, a processor, a device, and a storage medium for a gas-liquid actuator.

[0005] To achieve the above purpose, the first aspect of this application provides a control method for a gas-liquid actuator, including: The gas-liquid actuator includes a safety valve, and the gas-liquid actuator is connected to a gas transmission pipeline. The control method includes:

[0006] Obtain the highest operating pressure of the gas transmission pipeline and the performance parameters of the gas-liquid actuator, where the highest operating pressure refers to the highest pressure that can be reached inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline;

[0007] Determine the first design pressure of the gas-liquid actuator according to the highest operating pressure and the performance parameters;

[0008] Obtain the second design pressure of the gas transmission pipeline;

[0009] Determine the maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure;

[0010] Determine the popping pressure of the safety valve according to the maximum bearing pressure value, so as to control the opening or closing of the safety valve according to the popping pressure.

[0011] In the embodiment of the present application, determining the maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure includes: comparing the first design pressure with the second design pressure of the gas transmission pipeline; when the second design pressure is greater than or equal to the first design pressure, determining the second design pressure as the maximum bearing pressure value; when the second design pressure is less than the first design pressure, determining the first design pressure as the maximum bearing pressure value.

[0012] In the embodiment of the present application, the performance parameters include at least one of the highest operating temperature, the lowest operating temperature and the safety factor of the gas-liquid actuator; wherein, the highest operating temperature refers to the highest temperature that the gas-liquid actuator can reach in the operating state, the lowest operating temperature refers to the lowest temperature that the gas-liquid actuator can reach in the operating state, and the safety factor refers to the protection parameter for the pressure-bearing components of the gas-liquid actuator, so that the first design pressure is greater than the gas pressure value at the highest operating temperature.

[0013] In the embodiment of the present application, determining the first design pressure of the gas-liquid actuator by the highest operating pressure and the performance parameters includes: determining the first design pressure according to formula (1),

[0014]

[0015] wherein, P s is the first design pressure, T2 is the highest operating temperature, in K, T1 is the lowest operating temperature, in K, P1 is the highest operating pressure, and ε is the safety factor.

[0016] In the embodiment of the present application, determining the popping pressure of the safety valve according to the maximum bearing pressure value, so as to control the opening or closing of the safety valve according to the popping pressure, includes: determining the popping pressure of the safety valve according to the maximum bearing pressure value and the protection coefficient of the safety valve, so as to control the opening or closing of the safety valve according to the popping pressure.

[0017] In the embodiment of the present application, determining the popping pressure of the safety valve according to the maximum bearing pressure value and the protection coefficient of the safety valve, so as to control the opening or closing of the safety valve according to the popping pressure, includes: determining the popping pressure of the safety valve according to formula (2),

[0018] P3 = P2 / β (2);

[0019] Among them, P3 is the take-off pressure, P2 is the maximum pressure value, and β is the protection coefficient.

[0020] In an embodiment of the present application, a one-way valve is connected between the gas-liquid actuator and the gas pipeline; when the gas pressure in the gas pipeline is greater than the gas pressure inside the gas-liquid actuator, the gas in the gas pipeline flows into the gas-liquid actuator in one direction through the one-way valve.

[0021] A second aspect of the present application provides a processor configured to execute the above-mentioned control method for a gas-liquid actuator.

[0022] A third aspect of the present application provides a control device for a gas-liquid actuator, comprising the above-mentioned processor.

[0023] A fourth aspect of the present application provides a machine-readable storage medium having instructions stored thereon, which, when executed by a processor, configures the processor to execute the above-mentioned control method for a gas-liquid actuator.

[0024] Through the above technical scheme, the maximum operating pressure of the gas pipeline and the performance parameters of the gas-liquid actuator are obtained; the first design pressure of the gas-liquid actuator is determined according to the maximum operating pressure and the performance parameters; the second design pressure of the gas pipeline is obtained; the maximum pressure value of the gas-liquid actuator is determined according to the first design pressure and the second design pressure; the tripping pressure of the safety valve is determined according to the maximum pressure value to control the safety valve to open or close according to the tripping pressure. By adopting this method, the maximum pressure value of the gas-liquid actuator and the tripping value of the safety valve can be obtained to determine the appropriate control range of the internal air pressure of the gas-liquid actuator. When the internal pressure of the gas-liquid actuator exceeds the tripping pressure of the safety valve, the gas is discharged to protect the internal pressure-bearing components of the gas-liquid actuator. When the internal pressure of the gas-liquid actuator is low, the stable operation of the gas-liquid actuator is guaranteed.

[0025] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0027] Figure 1 A schematic diagram of an application environment of a control method for a gas-liquid actuator according to an embodiment of the present application is schematically shown;

[0028] Figure 2Schematically shows a flowchart of a control method for a gas-liquid actuator according to an embodiment of the present application;

[0029] Figure 3 Schematically shows the internal structure diagram of a computer device according to an embodiment of the present application. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] The control method for a gas-liquid actuator provided by the present application can be applied to an application environment as Figure 1 shown. A one-way valve 103 is connected between a gas transmission pipeline 101 and a gas-liquid actuator 102. The gas-liquid actuator 102 includes a safety valve 1021 and a pressure-bearing component 1022. Among them, the gas transmission pipeline 101 contains high-pressure gas inside. When the air pressure inside the gas transmission pipeline 101 is greater than the air pressure inside the gas-liquid actuator 102, the gas inside the gas transmission pipeline 101 will flow into the gas-liquid actuator 102 unidirectionally through the one-way valve 103. At this time, the gas-liquid actuator 102 can be regarded as a closed container. In a low-temperature situation, the high-pressure gas inside the gas transmission pipeline 101 flows into the gas-liquid actuator 102. When the ambient temperature rises, the air pressure inside the gas-liquid actuator 102 is significantly higher than the air pressure inside the gas transmission pipeline 101. When the air pressure inside the gas-liquid actuator 102 is higher than the set pressure of the safety valve 1021, the safety valve 1021 of the gas-liquid actuator will open to discharge gas to protect the pressure-bearing component 1022 inside the gas-liquid actuator 102.

[0032] Figure 2 Schematically shows a flowchart of a control method for a gas-liquid actuator according to an embodiment of the present application. As Figure 2 shown, in an embodiment of the present application, a control method for a gas-liquid actuator is provided, including the following steps:

[0033] S202, obtain the maximum operating pressure of the gas transmission pipeline and the performance parameters of the gas-liquid actuator, where the maximum operating pressure refers to the highest pressure that can be reached inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline.

[0034] S204, determine the first design pressure of the gas-liquid actuator according to the maximum operating pressure and the performance parameters.

[0035] S206, obtain the second design pressure of the gas transmission pipeline.

[0036] S208, determine the maximum pressure value that the gas-liquid actuator can withstand according to the first design pressure and the second design pressure.

[0037] S210, determine the opening pressure of the safety valve according to the maximum pressure value that can be withstood, so as to control the opening or closing of the safety valve according to the opening pressure.

[0038] In this application, for controlling the internal pressure value of the gas-liquid actuator, first, the processor obtains the highest operating pressure of the gas transmission pipeline connected to the gas-liquid actuator. This highest operating pressure refers to the highest pressure that can be achieved inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline. Different gas transmission pipelines have different highest operating pressures, which in turn leads to different gas pressures input to the gas-liquid actuator. Secondly, according to the highest operating pressure and the performance parameters of the gas-liquid actuator, the first design pressure of the gas-liquid actuator is determined. The performance parameters of the gas-liquid actuator refer to the performance of the gas-liquid actuator in the operating state. The first design pressure refers to the pressure value calculated according to the above parameters, which is the highest gas pressure value that may be reached inside the gas-liquid actuator determined according to the environmental parameters. This value is used to determine the maximum pressure value that the gas-liquid actuator can withstand. Then, obtain the second design pressure of the gas transmission pipeline. The second design pressure of the gas transmission pipeline refers to the pressure set for the gas transmission pipeline to withstand high-pressure gas, which is higher than the highest operating pressure of the above gas transmission pipeline. This second design pressure can ensure that the gas transmission pipeline can withstand high-pressure gas without failure. Compare the first design pressure and the second design pressure to determine the maximum pressure value that the gas-liquid actuator can withstand. After determining the maximum pressure value that the gas-liquid actuator can withstand, the opening pressure of the safety valve of the gas-liquid actuator can be obtained according to this value. This opening pressure is less than the maximum pressure value that can be withstood, so as to protect the gas-liquid actuator.

[0039] By using the above method, the maximum pressure value that the gas-liquid actuator can withstand and the opening value of the safety valve can be obtained to determine the appropriate control range of the internal air pressure of the gas-liquid actuator. When the internal pressure of the gas-liquid actuator exceeds the opening pressure of the safety valve, the gas is discharged to protect the pressure-bearing components inside the gas-liquid actuator. When the internal pressure of the gas-liquid actuator is relatively low, the safety valve does not open to ensure the stable operation of the gas-liquid actuator.

[0040] In one embodiment, determining the maximum pressure-bearing value of the gas-liquid actuator according to the first design pressure and the second design pressure includes: comparing the first design pressure with the second design pressure of the gas transmission pipeline; when the second design pressure is greater than or equal to the first design pressure, determining the second design pressure as the maximum pressure-bearing value; when the second design pressure is less than the first design pressure, determining the first design pressure as the maximum pressure-bearing value. Determining the larger pressure value as the maximum pressure-bearing value of the gas-liquid actuator is to prevent the second design pressure value of the gas transmission pipeline from being small, and in the case of frequent temperature changes, the internal pressure value of the gas-liquid actuator is significantly greater than the internal pressure of the gas transmission pipeline. When the second design pressure value of the gas transmission pipeline is small, it is impossible to ensure the safe operation of the gas-liquid actuator and will also cause the safety valve to trip frequently, affecting normal operation.

[0041] In a specific embodiment, first, the processor obtains the highest operating pressure of the gas transmission pipeline and the performance parameters of the gas-liquid actuator. The processor can determine the first design pressure P of the gas-liquid actuator according to the performance parameters and the highest operating pressure s , and then obtains the second design pressure P of the gas transmission pipeline ps . When the first design pressure P s is greater than the second design pressure P ps , determine the first design pressure P s as the maximum pressure-bearing value of the gas-liquid actuator. When the first design pressure P s is less than or equal to the second design pressure P ps , determine the second design pressure P ps as the maximum pressure-bearing value of the gas-liquid actuator.

[0042] In one embodiment, the performance parameters include at least one of the highest operating temperature, the lowest operating temperature, and the safety factor of the gas-liquid actuator; wherein, the highest operating temperature refers to the highest temperature that the gas-liquid actuator can reach in the operating state, the lowest operating temperature refers to the lowest temperature that the gas-liquid actuator can reach in the operating state, and the safety factor refers to the protection parameter for the pressure-bearing components of the gas-liquid actuator, so that the first design pressure is greater than the gas pressure value at the highest operating temperature after frequent temperature changes.

[0043] In one embodiment, determining the first design pressure of the gas-liquid actuator by the highest operating pressure and the performance parameters includes: determining the first design pressure according to formula (1),

[0044]

[0045] wherein, P sLet \(P_1\) be the first design pressure, \(T_2\) be the highest operating temperature in Kelvin, \(T_1\) be the lowest operating temperature in Kelvin, \(P_1\) be the highest operating pressure, and \(\varepsilon\) be the safety factor. Through the calculation of the above formula (1), the air pressure value under the maximum environmental fluctuation of the pneumatic-liquid actuator is obtained, and multiplying it by the preset safety factor can obtain the first design pressure. This first design pressure is determined according to the environmental parameters of the pneumatic-liquid actuator and the gas pipeline pressure, which can ensure that the design pressure meets the working requirements of the pneumatic-liquid actuator.

[0046] In one embodiment, the opening pressure of the safety valve is determined according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the opening pressure, including: determining the opening pressure of the safety valve according to the maximum bearing pressure value and the protection factor of the safety valve to control the opening or closing of the safety valve according to the opening pressure.

[0047] In one embodiment, determining the opening pressure of the safety valve according to the maximum bearing pressure value and the protection factor of the safety valve to control the opening or closing of the safety valve according to the opening pressure includes: determining the opening pressure of the safety valve according to formula (2),

[0048] \(P_3 = P_2 / \beta\) (2);

[0049] where \(P_3\) is the opening pressure, \(P_2\) is the maximum bearing pressure value, and \(\beta\) is the protection factor. After obtaining the maximum bearing pressure value of the pneumatic-liquid actuator, in order to make the safety valve protect the pressure-bearing components inside the pneumatic-liquid actuator, the processor obtains a protection parameter to determine the opening pressure of the safety valve so that the internal gas pressure of the pneumatic-liquid actuator is always less than the maximum bearing pressure value.

[0050] In a specific embodiment, the protection factor \(\beta\) is 1.05, and the opening pressure of the safety valve is slightly less than the maximum bearing pressure value of the pneumatic-liquid actuator. When the internal air pressure of the pneumatic-liquid actuator reaches the opening pressure value, the safety valve opens to release natural gas so that the internal air pressure of the pneumatic-liquid actuator is always less than the maximum bearing pressure value, protecting the pressure-bearing components inside the pneumatic-liquid actuator from damage.

[0051] In one embodiment, a one-way valve is connected between the gas-liquid actuator and the gas transmission pipeline; when the gas pressure in the gas transmission pipeline is greater than the gas pressure inside the gas-liquid actuator, the gas in the gas transmission pipeline flows unidirectionally into the gas-liquid actuator through the one-way valve. As an actuator component, the gas-liquid actuator needs to store high-pressure gas inside to ensure its own actuator ability. Connecting a one-way valve between the gas-liquid actuator and the gas transmission pipeline allows the gas inside the gas transmission pipeline to flow into the gas-liquid actuator when the air pressure of the gas-liquid actuator is less than that of the gas transmission pipeline. When the gas pressure inside the gas transmission pipeline decreases, the gas inside the gas-liquid actuator will not flow back. Therefore, the air pressure inside the gas-liquid actuator will not decrease with the decrease of the gas pressure in the gas transmission pipeline, ensuring that high air pressure is stored inside the gas-liquid actuator.

[0052] In a specific embodiment, the processor obtains that the maximum operating pressure of the gas transmission pipeline is 8.3 MPa, the maximum operating temperature of the gas-liquid actuator is 313.15 K, the minimum operating temperature is 276.15 K, the safety factor is 1.3, and the second design pressure of the gas transmission pipeline is 10 MPa. After obtaining the above values, the processor determines that the first design pressure of the gas-liquid actuator is 12.23 MPa. Since this first design pressure is greater than the second design pressure of the gas transmission pipeline, the maximum pressure-bearing value of the pneumatic actuator is 12.23 MPa. When the processor obtains the maximum pressure-bearing value of the gas-liquid actuator, it obtains the protection coefficient of the safety valve as 1.05. The processor determines the popping pressure of the safety valve to be 11.65 MPa based on the protection coefficient and the maximum pressure-bearing value of the gas-liquid actuator.

[0053] By using the above method, the maximum pressure-bearing value of the gas-liquid actuator and the popping value of the safety valve can be obtained to determine the appropriate control range of the air pressure inside the gas-liquid actuator. When the internal pressure of the gas-liquid actuator exceeds the popping pressure of the safety valve, the gas is discharged to protect the pressure-bearing components inside the gas-liquid actuator. When the internal pressure of the gas-liquid actuator is relatively low, the stable operation of the gas-liquid actuator is ensured.

[0054] Figure 2 It is a schematic flow chart of a control method for a gas-liquid actuator in one embodiment. It should be understood that although Figure 2 the steps in the flow chart are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, Figure 2At least a part of the steps therein may include multiple sub-steps or multiple stages, and these sub-steps or stages do not necessarily need to be executed and completed at the same moment, but can be executed at different moments. The execution order of these sub-steps or stages does not necessarily need to be sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0055] An embodiment of the present application provides a storage medium, on which a program is stored, and when the program is executed by a processor, it implements the above control method for a pneumatic-liquid actuator.

[0056] An embodiment of the present application provides a processor, and the processor is used to run a program. Among them, when the program runs, it executes the above control method for a pneumatic-liquid actuator.

[0057] In one embodiment, a control device for a pneumatic-liquid actuator is provided, and the control device includes the above processor.

[0058] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as Figure 3 shown. The computer device includes a processor A01, a network interface A02, a memory (not shown in the figure), and a database (not shown in the figure) connected through a system bus. Among them, the processor A01 of the computer device is used to provide computing and control capabilities. The memory of the computer device includes an internal memory A03 and a non-volatile storage medium A04. The non-volatile storage medium A04 stores an operating system B01, a computer program B02, and a database (not shown in the figure). The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 in the non-volatile storage medium A04. The network interface A02 of the computer device is used to communicate with an external terminal through a network connection. When the computer program B02 is executed by the processor A01, it implements a control method for a pneumatic-liquid actuator.

[0059] Those skilled in the art can understand that Figure 3 the structure shown in

[0060] An embodiment of the present application provides a device, which includes a processor, a memory, and a program stored on the memory and executable on the processor. When the processor executes the program, the following steps are implemented: obtaining the maximum operating pressure of the gas transmission pipeline and the performance parameters of the gas-liquid actuator, where the maximum operating pressure refers to the highest pressure that can be reached inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline; determining the first design pressure of the gas-liquid actuator according to the maximum operating pressure and the performance parameters; obtaining the second design pressure of the gas transmission pipeline; determining the maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure; determining the opening pressure of the safety valve according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the opening pressure.

[0061] In one embodiment, determining the maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure includes: comparing the first design pressure with the second design pressure of the gas transmission pipeline; when the second design pressure is greater than or equal to the first design pressure, determining the second design pressure as the maximum bearing pressure value; when the second design pressure is less than the first design pressure, determining the first design pressure as the maximum bearing pressure value.

[0062] In one embodiment, the performance parameters include at least one of the highest operating temperature, the lowest operating temperature, and the safety factor of the gas-liquid actuator; where the highest operating temperature refers to the highest temperature that the gas-liquid actuator can reach in the operating state, the lowest operating temperature refers to the lowest temperature that the gas-liquid actuator can reach in the operating state, and the safety factor refers to the protection parameter for the pressure-bearing components of the gas-liquid actuator, so that the first design pressure is greater than the gas pressure value at the highest operating temperature.

[0063] In one embodiment, determining the first design pressure of the gas-liquid actuator based on the maximum operating pressure and the performance parameters includes: determining the first design pressure according to formula (1),

[0064]

[0065] where, P s is the first design pressure, T2 is the highest operating temperature, in K, T1 is the lowest operating temperature, in K, P1 is the maximum operating pressure, and ε is the safety factor.

[0066] In one embodiment, determining the opening pressure of the safety valve according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the opening pressure includes: determining the opening pressure of the safety valve according to the maximum bearing pressure value and the protection coefficient of the safety valve to control the opening or closing of the safety valve according to the opening pressure.

[0067] In one embodiment, the popping pressure of the safety valve is determined based on the maximum bearing pressure value and the protection coefficient of the safety valve to control the opening or closing of the safety valve according to the popping pressure, including: determining the popping pressure of the safety valve according to formula (2),

[0068] P3 = P2 / β (2);

[0069] wherein, P3 is the popping pressure, P2 is the maximum bearing pressure value, and β is the protection coefficient.

[0070] In one implementation, a check valve is connected between the pneumatic-liquid actuator and the gas transmission pipeline; when the gas pressure in the gas transmission pipeline is greater than the gas pressure inside the pneumatic-liquid actuator, the gas in the gas transmission pipeline flows unidirectionally into the pneumatic-liquid actuator through the check valve.

[0071] The present application also provides a computer program product, which, when executed on a data processing device, is adapted to execute a program initialized with the following method steps: obtaining the maximum operating pressure of the gas transmission pipeline and the performance parameters of the pneumatic-liquid actuator, wherein the maximum operating pressure refers to the highest pressure that can be achieved inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline; determining the first design pressure of the pneumatic-liquid actuator according to the maximum operating pressure and the performance parameters; obtaining the second design pressure of the gas transmission pipeline; determining the maximum bearing pressure value of the pneumatic-liquid actuator according to the first design pressure and the second design pressure; determining the popping pressure of the safety valve according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the popping pressure.

[0072] In one embodiment, determining the maximum bearing pressure value of the pneumatic-liquid actuator according to the first design pressure and the second design pressure includes: comparing the first design pressure with the second design pressure of the gas transmission pipeline; when the second design pressure is greater than or equal to the first design pressure, determining the second design pressure as the maximum bearing pressure value; when the second design pressure is less than the first design pressure, determining the first design pressure as the maximum bearing pressure value.

[0073] In one embodiment, the performance parameters include at least one of the highest operating temperature, the lowest operating temperature, and the safety factor of the pneumatic-liquid actuator; wherein, the highest operating temperature refers to the highest temperature that the pneumatic-liquid actuator can reach in the operating state, the lowest operating temperature refers to the lowest temperature that the pneumatic-liquid actuator can reach in the operating state, and the safety factor refers to the protection parameter for the pressure-bearing components of the pneumatic-liquid actuator, so that the first design pressure is greater than the gas pressure value at the highest operating temperature.

[0074] In one embodiment, determining the first design pressure of the pneumatic-liquid actuator according to the maximum operating pressure and the performance parameters includes: determining the first design pressure according to formula (1),

[0075]

[0076] Among them, P s is the first design pressure, T2 is the highest operating temperature in K, T1 is the lowest operating temperature in K, P1 is the highest operating pressure, and ε is the safety factor.

[0077] In one embodiment, the popping pressure of the safety valve is determined according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the popping pressure, including: determining the popping pressure of the safety valve according to the maximum bearing pressure value and the protection factor of the safety valve to control the opening or closing of the safety valve according to the popping pressure.

[0078] In one embodiment, determining the popping pressure of the safety valve according to the maximum bearing pressure value and the protection factor of the safety valve to control the opening or closing of the safety valve according to the popping pressure includes: determining the popping pressure of the safety valve according to formula (2),

[0079] P3 = P2 / β (2);

[0080] Among them, P3 is the popping pressure, P2 is the maximum bearing pressure value, and β is the protection factor.

[0081] In one implementation, a check valve is connected between the gas-liquid actuator and the gas transmission pipeline; when the gas pressure in the gas transmission pipeline is greater than the gas pressure inside the gas-liquid actuator, the gas in the gas transmission pipeline flows unidirectionally into the gas-liquid actuator through the check valve.

[0082] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0083] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0084] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in one or more processes and / or blocks Figure 1 of one or more processes and / or blocks Figure 1 specified in the flowchart.

[0085] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, so that the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one or more processes and / or blocks Figure 1 of one or more processes and / or blocks Figure 1 specified in the flowchart.

[0086] In a typical configuration, a computing device includes one or more processors (CPUs), an input / output interface, a network interface, and memory.

[0087] The memory may include non-permanent memory in the form of computer-readable media, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash memory. Memory is an example of computer-readable media.

[0088] Computer-readable media includes both permanent and non-permanent, removable and non-removable media implemented by any method or technology for storing information. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves.

[0089] It should also be noted that the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus that comprises the element.

[0090] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0091] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect" and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] The above are only embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A control method for a gas-liquid actuator, characterized in that, The gas-liquid actuator includes a safety valve, and the gas-liquid actuator is connected to a gas transmission pipeline. The control method includes: Obtaining the maximum operating pressure of the gas transmission pipeline and the performance parameters of the gas-liquid actuator, where the maximum operating pressure refers to the highest pressure that can be reached inside the gas transmission pipeline when there is gas flow inside the gas transmission pipeline; Determining a first design pressure of the gas-liquid actuator according to the maximum operating pressure and the performance parameters; Obtaining a second design pressure of the gas transmission pipeline; Determining a maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure; Determining a set pressure of the safety valve according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the set pressure; Among them, the determining the maximum bearing pressure value of the gas-liquid actuator according to the first design pressure and the second design pressure includes: Comparing the first design pressure with the second design pressure of the gas transmission pipeline; When the second design pressure is greater than or equal to the first design pressure, determining the second design pressure as the maximum bearing pressure value; When the second design pressure is less than the first design pressure, determining the first design pressure as the maximum bearing pressure value.

2. The control method for the gas-liquid actuator according to claim 1, wherein The performance parameters include at least one of the highest operating temperature, the lowest operating temperature, and the safety factor of the gas-liquid actuator; Among them, the highest operating temperature refers to the highest temperature that the gas-liquid actuator can reach in the operating state, the lowest operating temperature refers to the lowest temperature that the gas-liquid actuator can reach in the operating state, and the safety factor refers to a protection parameter for the pressure-bearing components of the gas-liquid actuator, so that the first design pressure is greater than the gas pressure value at the highest operating temperature.

3. The control method for a gas-liquid actuator according to claim 2, wherein Determining the first design pressure of the gas-liquid actuator according to the maximum operating pressure and the performance parameters includes: determining the first design pressure according to formula (1), where P s is the first design pressure, T2 is the highest operating temperature in K, T1 is the lowest operating temperature in K, P1 is the highest operating pressure, and ε is the safety factor.

4. The control method for a gas-liquid actuator according to claim 1, characterized in that The determining the set pressure of the safety valve according to the maximum bearing pressure value to control the opening or closing of the safety valve according to the set pressure includes: Determining the set pressure of the safety valve according to the maximum bearing pressure value and the protection factor of the safety valve to control the opening or closing of the safety valve according to the set pressure.

5. The control method for a gas-liquid actuator according to claim 4, characterized in that, The determining the set pressure of the safety valve according to the maximum bearing pressure value and the protection factor of the safety valve to control the opening or closing of the safety valve according to the set pressure includes: Determining the set pressure of the safety valve according to formula (2), P3 = P2 / β (2); Among them, P3 is the set pressure, P2 is the maximum bearing pressure value, and β is the protection factor.

6. The control method for a gas-liquid actuator according to claim 1, wherein, A check valve is connected between the gas-liquid actuator and the gas transmission pipeline; When the gas pressure in the gas transmission pipeline is greater than the gas pressure inside the gas-liquid actuator, the gas in the gas transmission pipeline flows unidirectionally into the gas-liquid actuator through the check valve.

7. A processor, characterized in that, Configured to execute the control method for a gas-liquid actuator according to any one of claims 1 to 6.

8. A control device for a gas-liquid actuator, characterized in that, Comprising a processor according to claim 7.

9. A machine-readable storage medium having instructions stored thereon, characterized in that, When executed by the processor, the instruction causes the processor to be configured to execute the control method for the pneumatic-liquid actuator according to any one of claims 1 to 6.

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