Control method and device for simulating crevasse spraying process

Abstract

The invention provides a control method and device for simulating a crevasse blowing process, and relates to the technical field of nuclear reactors, and the control method for simulating the crevasse blowing process comprises the following steps: adjusting the initial state of a valve in a valve set according to initial state information; starting a heating unit in the test body based on the initial power to heat the mixed fluid, and judging whether the heating unit meets a first judgment condition of the temperature or not according to the temperature of the heating unit; when the heating unit meets the first judgment condition, the control strategy is obtained and executed, so that crevasse blow test simulation is achieved, the problem that in the prior art, misoperation is likely to occur in a test for simulating the crevasse blow process in a nuclear reactor through manual operation is solved, and the better test simulation process is achieved while quick response in the test process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear reactors, and in particular to a control method and device for simulating a breach discharge process. Background Art

[0002] Loss-of-coolant accident (LOCA) is one of the most important design basis accidents of light water reactor nuclear power plants. The large break LOCA accident caused by double-end shear fracture of the cooling pipe section of the reactor primary loop main pipeline is one of the key focuses of pressurized water reactor accident analysis.

[0003] In the test analysis process, the most important thing is to simulate the process of breach accident spraying. The spraying process lasts for a short time, about 40 to 60 seconds. The test conditions involved in the spraying process are relatively complex. The test operations include switching the spraying and bypass valves, adjusting the power of the heating rod, adjusting the opening of the breach valve, etc. In the past, the process of simulating breach spraying was completed by manual operation, which was prone to human error and poor test results. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, the first purpose of the present application is to propose a control method for simulating the breach blowing process, so as to achieve accurate and timely control of the breach blowing process.

[0006] The second objective of the present application is to provide a control device for simulating the breach blowing process.

[0007] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a control method for simulating a breach spraying process, comprising:

[0008] Adjusting the initial state of valves in the valve set according to the initial state information, wherein the valve set includes at least one of a first valve, a second valve, a third valve, and a breach regulating valve;

[0009] Based on the initial power, a heating unit in the test body is turned on to heat the mixed fluid, and according to the temperature of the heating unit, it is determined whether the heating unit meets a first temperature determination condition;

[0010] In response to the heating unit satisfying the first determination condition, a control strategy is obtained and executed to implement a breach blowdown test simulation; wherein the control strategy includes power control of the heating unit based on an attenuation rule and state control of valves in the valve set.

[0011] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a control device for simulating a breach spraying process, comprising:

[0012] A control unit, a fluid generating unit, a heating unit, a first valve, a second valve, a third valve and a breach regulating valve; wherein the fluid generating unit, the heating unit, the first valve, the second valve, the third valve and the breach regulating valve are connected via a pipeline, the control unit is respectively connected to the heating unit, the first valve, the second valve, the third valve and the breach regulating valve, and the heating unit is inside the test body;

[0013] The control unit is used to adjust the initial states of the first valve, the second valve, the third valve and the breach regulating valve according to the initial state information; turn on the heating unit based on the initial power, and determine whether the heating unit meets the first temperature determination condition according to the temperature of the heating unit; in response to the heating unit meeting the first determination condition, obtain and execute the control strategy to realize the breach spraying test simulation; wherein the control strategy includes power control of the heating unit based on the attenuation rule, and state control of the first valve, the second valve, the third valve and the breach regulating valve;

[0014] The fluid generating unit is used for generating a mixed fluid, and delivering the mixed fluid to the test body through a pipeline, a first valve and a second valve;

[0015] The heating unit in the test body is used to heat the mixed fluid and send the mixed fluid to the breach regulating valve through the pipeline and the third valve;

[0016] The breach regulating valve is used to realize breach spraying simulation.

[0017] The control method and device for simulating the breach blowing process provided in the present application adjust the initial states of the first valve, the second valve, the third valve and the breach regulating valve in the valve set through the control unit, and turn on the heating unit in the test body based on the initial power. When the temperature of the heating unit meets the first judgment condition, the attenuation rule for power control is obtained to adjust the power and control and adjust the valve state, thereby achieving efficient control of each valve and the heating unit in the test body during the test. The power control based on the attenuation rule is more in line with the decay trend of the core, and the test effect is better. The problem of easy misoperation in manual operation is solved, and the safety of the test process is ensured.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 A flow chart of a control method for simulating a breach spraying process provided in an embodiment of the present application;

[0021] Figure 2 A flow chart of another control method for simulating a breach spraying process provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of a power attenuation curve provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of a pressure drop curve provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of a test parameter change provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of a control device for simulating a breach spraying process provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0027] The following describes the control method and device for simulating the breach spraying process of an embodiment of the present application with reference to the accompanying drawings.

[0028] Figure 1 A flow chart of a control method for simulating a breach spraying process provided in an embodiment of the present application. Figure 1 As shown, the method is executed by a control unit and includes the following steps:

[0029] S101, adjusting the initial states of valves in a valve set according to initial state information.

[0030] The valve assembly includes at least one of a first valve, a second valve, a third valve and a breach regulating valve.

[0031] In some implementations, the control unit is a terminal such as a computer that can perform basic control functions, and each module is turned on and adjusted based on the control unit to reduce erroneous operations caused by manual processing.

[0032] In some implementations, the initial state information may be pre-configured information, which includes the initial state of each valve. For example, if the initial state information indicates that the first valve is closed and the other valves are open, then the initial state of the first valve in the valve set is adjusted to be closed, and the initial states of the other valves are adjusted to be open according to the initial state information. In this embodiment, the initial state information may be that the first valve, the third valve, and the breach regulating valve are closed, and the second valve is open. Based on the initial state information, the first valve, the third valve, and the breach regulating valve in the valve set are adjusted to be closed, and the second valve is opened.

[0033] S102, based on the initial power, a heating unit in the test body is turned on to heat the mixed fluid, and whether the heating unit satisfies a first temperature determination condition is determined according to the temperature of the heating unit.

[0034] Optionally, the initial power may be a set value, which is not specifically limited; that is, the heating unit in the test body is turned on, and the power of the heating unit is set to the initial power; wherein the test body may be a core simulation body.

[0035] In some implementations, the heating unit may be one or more heating rods, that is, the test body may include one or more heating rods; the heating rods are operated according to the initial power to achieve heating of the mixed fluid.

[0036] Further, the temperature of the heating unit is obtained and measured, that is, the temperature of one or more heating rods in the heating unit is measured, and whether the heating unit meets the first temperature determination condition is determined according to the temperature of the heating unit. In some implementations, the first determination condition may be that the temperature reaches a preset value. For example, when the temperature of the heating unit meets the preset value, it is determined that the heating unit meets the first temperature determination condition. Otherwise, it is determined that the heating unit does not meet the first temperature determination condition.

[0037] S103, in response to the heating unit satisfying the first determination condition, obtaining and executing a control strategy to implement a breach spraying test simulation.

[0038] The control strategy includes power control of the heating unit based on the attenuation rule and state control of the valves in the valve set.

[0039] It can be understood that the attenuation rule refers to the rule for the attenuation of the power of the heating unit during the actual breach spraying process. The power attenuation rule can be simulated according to the attenuation of power during the actual breach spraying process, and power control is performed according to the power attenuation rule. For example, the initial power is 10, and the power attenuation rule is to gradually decay by 1. Then, based on the attenuation rule, the power control of the heating unit will change from the initial power of 10 to 9, 8 until the end of the test simulation.

[0040] In some implementations, the state control of the valves in the valve set is to change the open or closed state of the valves. During the breach spraying test, the breach regulating valve is required to realize the breach spraying process, so the state control of the breach regulating valve is to be open. Accordingly, the open or closed state of the first valve, the second valve and the third valve is adaptively adjusted to ensure that the breach spraying test can be realized; in this implementation, the state of the valves in the breach spraying stage is: the second valve is closed, the first valve, the third valve and the breach regulating valve are open.

[0041] In some implementations, the opening of the breach regulating valve can also be adjusted to control the pressure of the test body based on the opening of the breach regulating valve to make it more consistent with the actual pressure changes during the breach blowing process and achieve better test results.

[0042] In this embodiment, the states of the first valve, the second valve, the third valve and the breach regulating valve in the valve set are adjusted based on the control unit, and are adjusted to the initial state at the start of the test. The heating unit in the test body is turned on based on the initial power. When the temperature of the heating unit meets the first judgment condition, the attenuation rule for power control is obtained to adjust the power and control and adjust the valve state, so as to achieve efficient control of each valve and the heating unit in the test body during the test. The power control based on the attenuation rule is more in line with the decay trend of the core, and the test effect is better. At the same time, the test process is not prone to misoperation, and the test process is safer.

[0043] Based on the above embodiments, Figure 2 A flow chart of another control method for simulating a breach spraying process provided in an embodiment of the present application. Figure 2 As shown, the method is executed by a control unit and includes the following steps:

[0044] S201, adjusting the initial states of valves in the valve set according to initial state information.

[0045] In some implementations, the initial state information includes: the first valve, the third valve and the breach regulating valve are closed, and the second valve is open; according to the initial state information, the initial state of the first valve, the third valve and the breach regulating valve is controlled to be closed, and the initial state of the second valve is controlled to be open.

[0046] In the embodiment of the present application, the implementation method of step S201 can be implemented by any of the methods in the embodiments of the present disclosure, which is not limited here and will not be repeated.

[0047] S202, based on the initial power, the heating unit in the test body is turned on to heat the mixed fluid, and whether the heating unit meets the first temperature determination condition is determined according to the temperature of the heating unit.

[0048] In some implementations, the heating unit includes at least one heating rod, and the real-time temperature of each heating rod in the heating unit is obtained; optionally, one or more temperature measuring instruments, such as thermocouples or temperature sensors, can be arranged in the test body to measure the real-time temperature.

[0049] In response to the fact that the real-time temperature of any heating rod is greater than or equal to the set temperature threshold, it is determined that the heating unit meets the first temperature judgment condition; that is, when the temperature of any heating rod reaches the set temperature threshold, it is determined that the heating unit meets the first temperature judgment condition.

[0050] In the embodiment of the present application, the implementation method of step S202 can be implemented by any of the methods in the embodiments of the present disclosure, which is not limited here and will not be repeated.

[0051] S203, in response to the heating unit satisfying the first judgment condition, obtaining the power attenuation curve of the heating unit, and using the power attenuation curve as an attenuation rule to perform power control on the heating unit, obtaining valve opening and closing information, and controlling the initial state of the valves in the valve set based on the valve opening and closing information.

[0052] In some implementations, the power decay curve describes the power decay process during the simulation test process, which can be obtained in advance by simulating the actual power decay, for example Figure 3 As shown, a power attenuation curve is obtained by simulating the decay process of the core decay, and the power of the heating unit is controlled according to the power attenuation curve as a power attenuation rule, that is, the power of the heating unit is controlled to change in real time according to the power attenuation curve, thereby simulating the decay curve of the core decay process.

[0053] Optionally, the valve opening and closing information may include closing the second valve, opening the first valve, the third valve, and the breach regulating valve, which is pre-configured test information. Specifically, the initial state of the second valve may be adjusted from open to closed based on the valve opening and closing information; in response to the second valve being completely closed, the initial states of the first valve, the third valve, and the breach regulating valve may be adjusted from closed to open based on the valve opening and closing information.

[0054] In some implementations, the breach regulating valve can also be opened to a set opening, and a pressure drop curve of the test body can be obtained. The pressure drop curve is used to describe the change trend of the pressure of the test body during the actual breach spraying process, and can be simulated based on the change of pressure during the actual breach spraying process, such as Figure 4As shown; it can be understood that different openings of the breach regulating valve have different effects on the pressure of the test body. Therefore, the pressure change affecting the test body can be adjusted according to the opening of the breach regulating valve, so that the pressure change of the test body is consistent with the pressure change trend during the actual breach spraying process. Therefore, the set opening of the breach regulating valve is adjusted according to the pressure drop curve to simulate the pressure change of the test body during the spraying process, so that the test process is more in line with the actual breach spraying process.

[0055] Based on the control method of the above embodiment, a test is performed to simulate the breach spraying process. During the test, test parameters such as the power of the heating unit, the pressure of the test body, and the flow rate change can be as follows: Figure 5 As shown in the example, the control center responds quickly according to the conditions during the test and completes each control step in the order of the test process, which can improve the control effect and reduce test errors.

[0056] In this embodiment, at the initial stage of the test, the initial state of each valve in the valve set is adjusted, that is, the valve is adaptively opened and closed, and the heating unit inside the test body is further opened with the initial power to heat the mixed fluid, and whether to start controlling the start of the spray test is determined based on whether the temperature of the heating unit meets the first judgment condition. When the temperature of any measuring point of the heating rod in the heating unit reaches the set temperature threshold, the power attenuation curve of the heating unit is obtained to power the heating unit, and the initial state of each valve is adjusted based on the valve opening and closing information. The opening of the breach regulating valve can also be adjusted to control the pressure change of the test body to conform to the corresponding pressure drop curve, so as to achieve a better test simulation process while improving the rapid response in the test process, so that the test process is more in line with the actual breach spraying process.

[0057] In order to implement the above-mentioned embodiment, the present application also proposes a control device for simulating the breach spraying process.

[0058] Figure 6 A schematic diagram of the structure of a control device for simulating a breach spraying process provided in an embodiment of the present application. Figure 6 As shown, the control device for simulating the breach spraying process includes:

[0059] A control unit 601, a fluid generating unit 602, a heating unit 603, a first valve 10, a second valve 20, a third valve 30 and a rupture regulating valve 40; wherein the fluid generating unit 602, the heating unit 603, the first valve 10, the second valve 20, the third valve 30 and the rupture regulating valve 40 are connected via pipelines, the control unit 601 is respectively connected to the heating unit 603, the first valve 10, the second valve 20, the third valve 30 and the rupture regulating valve 40, and the heating unit 603 is inside the test body.

[0060] The control unit 601 is used to adjust the initial states of the first valve 10, the second valve 20, the third valve 30 and the breach regulating valve 40 according to the initial state information; turn on the heating unit 603 based on the initial power, and determine whether the heating unit 603 meets the first temperature judgment condition according to the temperature of the heating unit 603; in response to the heating unit 603 meeting the first judgment condition, obtain and execute the control strategy to realize the breach spraying test simulation; wherein the control strategy includes power control of the heating unit 603 based on the attenuation rule, and state control of the first valve 10, the second valve 20, the third valve 30 and the breach regulating valve 40.

[0061] The fluid generating unit 602 is used to generate a mixed fluid and deliver the mixed fluid to the test body through a pipeline, a first valve 10 and a second valve 20 .

[0062] The heating unit 603 in the test body is used to heat the mixed fluid and send the mixed fluid to the breach regulating valve 40 through the pipeline and the third valve 30 .

[0063] The breach regulating valve 40 is used to realize breach spraying simulation.

[0064] In some implementations, the fluid generating unit 602 may include a saturated water generating module and a steam generating module, wherein the saturated water generating module generates saturated water, and the steam module generates steam, so that the saturated water and the steam are mixed to obtain a mixed fluid.

[0065] In some implementations, a fourth valve may be included between the fluid generating unit 602 and the heating unit 603, and the fourth valve is used to adjust the flow rate of the mixed fluid flowing into the test body; optionally, the test body may be a core simulation body, and the heating unit 603 may be one or more heating rods.

[0066] In some implementations, the control unit 601 can receive the real-time temperature of each heating rod in the heating unit 603, and in response to the temperature of any heating rod exceeding a set temperature threshold, determine that the heating unit 603 meets the first temperature judgment condition; optionally, the temperature of the heating rod can be obtained by using a temperature detection instrument, such as a thermocouple or other instrument to collect the temperature and transmit it to the control center in real time, so that the control center can perform test control in a timely manner based on changes in test data.

[0067] In response to the heating unit 603 satisfying the first judgment condition, the control unit 601 can obtain the power attenuation curve of the heating unit 603, and use the power attenuation curve as an attenuation rule to perform power control on the heating unit 603; obtain valve opening and closing information, and control the initial states of the first valve 10, the second valve 20, the third valve 30 and the breach regulating valve 40 based on the valve opening and closing information; wherein the power attenuation curve and the valve opening and closing information may be curve information obtained by simulation in advance, for example, obtained by simulating the actual power attenuation, and the power of the heating unit 603 in the test body is adjusted according to the power attenuation curve to simulate the core decay process.

[0068] Optionally, the valve opening and closing information may be closing the second valve 20, opening the first valve 10, the third valve 30 and the breach regulating valve 40; the control unit 601 adjusts the initial state of the second valve 20 from open to closed based on the valve opening and closing information; in response to the second valve 20 being completely closed, the initial states of the first valve 10, the third valve 30 and the breach regulating valve 40 are adjusted from closed to open according to the valve opening and closing information; in this embodiment, the second valve can be used to indicate whether the current test is turned on, and when the heating unit 603 meets the first judgment condition, the second valve 20 is closed to start the spraying simulation test; after the second valve 20 is completely closed, the first valve 10, the third valve 30 and the breach regulating valve 40 are opened at the same time; it can be understood that after the first valve 10 is opened, the mixed fluid will pass through the connecting pipe into the test body, and after further processing by the test body, it will flow out from the third valve 30 to reach the breach regulating valve 40, and the breach regulating valve 40 will realize the spraying process of the mixed fluid.

[0069] In some implementations, the control unit 601 opens the breach regulating valve 40 to a set opening and obtains a pressure drop curve of the test body; the set opening of the breach regulating valve 40 is adjusted according to the pressure drop curve to simulate the pressure change during the spraying process; wherein the pressure drop curve is a curve simulated in advance, for example, it can be simulated based on the pressure change during the actual breach spraying process, and the opening of the breach regulating valve 40 is adjusted according to the pressure drop curve to simulate the pressure drop trend of the test body during the spraying process, thereby improving the accuracy of the test.

[0070] It should be noted that the above explanation of the control method embodiment of the simulated breach spraying process is also applicable to the control device of the simulated breach spraying process of this embodiment, and will not be repeated here.

[0071] In an embodiment of the present application, the control unit adjusts the initial state of each valve in the valve set at the initial stage of the test, that is, adaptively opens and closes the valves, further opens the heating unit inside the test body with the initial power to heat the mixed fluid, and decides whether to start controlling the start of the spray test based on whether the temperature of the heating unit satisfies the first judgment condition. When the temperature of any measuring point of the heating rod in the heating unit reaches the set temperature threshold, the power attenuation curve of the heating unit is obtained to power the heating unit, and the initial state of each valve is adjusted based on the valve opening and closing information. The opening of the breach regulating valve can also be adjusted to control the pressure change of the test body to conform to the corresponding pressure drop curve, thereby achieving a better test simulation process, making the test process more in line with the actual breach spraying process, reducing human error operations, and more accurately simulating the test process with the power and pressure changes in the actual spraying process, thereby obtaining more effective test data.

[0072] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0073] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0074] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0075] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0078] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0079] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0080] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0081] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0082] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A control method for simulating a breach spraying process, characterized in that: Executed by the control unit, including: Adjusting the initial state of valves in the valve set according to the initial state information, wherein the valve set includes at least one of a first valve, a second valve, a third valve, and a breach regulating valve; Based on the initial power, a heating unit in the test body is turned on to heat the mixed fluid, and according to the temperature of the heating unit, it is determined whether the heating unit meets a first temperature determination condition; In response to the heating unit satisfying the first determination condition, a control strategy is obtained and executed to implement a breach blowdown test simulation; wherein the control strategy includes power control of the heating unit based on an attenuation rule and state control of valves in the valve set.

2. The method according to claim 1, characterized in that The initial state information includes: the first valve, the third valve and the breach regulating valve are closed, and the second valve is opened; According to the initial state information, the initial states of the first valve, the third valve and the breach regulating valve are controlled to be closed, and the initial state of the second valve is controlled to be open.

3. The method according to any one of claims 1 or 2, characterized in that: The heating unit includes at least one heating rod, and determining whether the heating unit meets a first temperature determination condition according to the temperature of the heating unit includes: Obtaining the real-time temperature of each heating rod in the heating unit; In response to the fact that the real-time temperature of any heating rod is greater than or equal to a set temperature threshold, it is determined that the heating unit satisfies a first temperature determination condition.

4. The method according to claim 3, characterized in that The obtaining and executing of the control strategy includes: Acquire a power attenuation curve of the heating unit, and use the power attenuation curve as an attenuation rule to perform power control on the heating unit; Valve opening and closing information is obtained, and initial states of valves in the valve set are controlled based on the valve opening and closing information.

5. The method according to claim 4, characterized in that The valve opening and closing information includes closing the second valve, opening the first valve, the third valve and the breach regulating valve, and the method includes: adjusting the initial state of the second valve from open to closed based on the valve opening and closing information; In response to the second valve being completely closed, the initial states of the first valve, the third valve and the breach regulating valve are adjusted from closed to open according to the valve opening and closing information.

6. The method according to claim 5, characterized in that The method further comprises: Open the breach regulating valve to a set opening, and obtain a pressure drop curve of the test body; The set opening of the breach regulating valve is adjusted according to the pressure drop curve to simulate the pressure change during the spraying process.

7. A control device for simulating a breach spraying process, characterized in that: include: A control unit, a fluid generating unit, a heating unit, a first valve, a second valve, a third valve and a breach regulating valve; wherein the fluid generating unit, the heating unit, the first valve, the second valve, the third valve and the breach regulating valve are connected via a pipeline, the control unit is respectively connected to the heating unit, the first valve, the second valve, the third valve and the breach regulating valve, and the heating unit is inside the test body; The control unit is used to adjust the initial states of the first valve, the second valve, the third valve and the breach regulating valve according to the initial state information; turn on the heating unit based on the initial power, and determine whether the heating unit meets the first temperature determination condition according to the temperature of the heating unit; in response to the heating unit meeting the first determination condition, obtain and execute the control strategy to realize the breach spraying test simulation; wherein the control strategy includes power control of the heating unit based on the attenuation rule, and state control of the first valve, the second valve, the third valve and the breach regulating valve; The fluid generating unit is used for generating a mixed fluid, and delivering the mixed fluid to the test body through a pipeline, a first valve and a second valve; The heating unit in the test body is used to heat the mixed fluid and send the mixed fluid to the breach regulating valve through the pipeline and the third valve; The breach regulating valve is used to realize breach spraying simulation.

8. The device according to claim 7, characterized in that The device comprises: The control unit is used to obtain the power attenuation curve of the heating unit, and use the power attenuation curve as an attenuation rule to control the power of the heating unit; obtain valve opening and closing information, and control the initial states of the first valve, the second valve, the third valve and the breach regulating valve based on the valve opening and closing information.

9. The device according to claim 8, characterized in that The valve opening and closing information includes closing the second valve, opening the first valve, the third valve and the breach regulating valve, and the device includes: The control unit adjusts the initial state of the second valve from open to closed based on the valve opening and closing information; in response to the second valve being fully closed, the control unit adjusts the initial states of the first valve, the third valve and the breach regulating valve from closed to open according to the valve opening and closing information.

10. The device according to claim 9, characterized in that The device also includes: The control unit opens the breach regulating valve to a set opening and obtains a pressure drop curve of the test body; and adjusts the set opening of the breach regulating valve according to the pressure drop curve to simulate the pressure change during the spraying process.

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