Spraying system detection method and device, computer equipment and storage medium

Abstract

The invention relates to a spraying system detection method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring an equiaxed diagram of a spraying system in a nuclear power plant; according to the equiaxed diagram, the target orifice plate flow passing through a throttling orifice plate in the circulation pipeline is determined; under the condition that the target orifice plate flow belongs to the standard flow interval, a spraying pump is controlled to be started, and the pipeline flow in a circulating pipeline is detected; and when it is detected that the pipeline flow in the circulation pipeline is the preset flow, all the isolation valves are controlled to be opened in sequence, and the opening time of the isolation valves and the reliability of the circulation pipeline are detected. By adopting the method, the reliability detection of the spraying system can be simply, efficiently and comprehensively completed.

Description

Technical Field

[0001] The present application relates to the field of nuclear power technology, and particularly to a method, device, computer equipment and storage medium for detecting a spray system. Background Art

[0002] The containment is of particular importance to the safety of nuclear power plants. It is the last barrier to prevent fission products from the fuel and radioactive substances in the primary circuit from entering the environment. In the event of a loss of coolant accident (LOCA) or a rupture accident of the steam pipeline inside the containment, high-temperature and high-pressure steam is ejected, causing the pressure and temperature inside the containment to rise. The function of the containment spray system is to spray and condense the steam to reduce the pressure and temperature inside the containment to an acceptable level and ensure the integrity of the containment. Therefore, the reliability of the containment spray system is crucial.

[0003] In traditional technologies, reliability detection is usually carried out for each component in the spray system (such as spray pumps, safety valves, and pipelines, etc.), but there is no complete detection method for the reliability of the spray system. Based on this, it is necessary to propose a comprehensive and efficient detection method for the spray system. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a method, device, computer equipment and storage medium for detecting a spray system that can comprehensively detect the reliability of the spray system.

[0005] In a first aspect, the present application provides a method for detecting a spray system, which is applied to a control device of the spray system. The spray system includes a circulation pipeline, a spray pump and at least one isolation valve installed on the circulation pipeline. The method includes:

[0006] Obtain an isometric drawing of the spray system in a nuclear power plant;

[0007] Determine a target orifice flow rate passing through an orifice plate in the circulation pipeline according to the isometric drawing;

[0008] When the target orifice flow rate belongs to a standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline;

[0009] When it is detected that the pipeline flow rate in the circulation pipeline is a preset flow rate, control each isolation valve to open in sequence and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0010] In one embodiment, determining a target orifice flow rate passing through an orifice plate according to the isometric drawing includes:

[0011] Determine the pipeline length and pipeline diameter of the circulation pipeline according to the isometric drawing;

[0012] Adjust the orifice diameter of the throttle orifice plate according to the pipeline length and pipeline diameter to adjust the orifice flow rate of the orifice plate;

[0013] Use the adjusted orifice flow rate as the target orifice flow rate.

[0014] In one embodiment, adjusting the orifice diameter of the throttle orifice plate according to the pipeline length and pipeline diameter includes:

[0015] Obtain the preset friction loss coefficient, local resistance coefficient, and fluid density;

[0016] Determine the orifice head loss of the throttle orifice plate according to the pipeline length, pipeline diameter, friction loss coefficient, local resistance coefficient, and fluid density;

[0017] Adjust the orifice diameter of the throttle orifice plate according to the magnitude relationship between the orifice head loss and the standard head loss.

[0018] In one embodiment, determining the orifice head loss of the throttle orifice plate according to the pipeline length, pipeline diameter, friction loss coefficient, local resistance coefficient, and fluid density includes:

[0019] Determine the friction loss along the path of the throttle orifice plate according to the pipeline length, pipeline diameter, and friction loss coefficient;

[0020] Determine the local resistance loss of the throttle orifice plate according to the local resistance coefficient and fluid density;

[0021] Determine the orifice head loss of the throttle orifice plate according to the friction loss along the path and the local resistance loss of the throttle orifice plate.

[0022] In one embodiment, determining the orifice head loss of the throttle orifice plate according to the friction loss along the path and the local resistance loss of the throttle orifice plate includes:

[0023] Obtain the head of the spray pump;

[0024] Use the sum of the friction loss along the path and the local resistance loss of the throttle orifice plate as the orifice resistance loss of the throttle orifice plate;

[0025] Use the sum of the head and the orifice resistance loss as the orifice head loss of the throttle orifice plate.

[0026] In one embodiment, adjusting the orifice diameter of the throttle orifice plate according to the magnitude relationship between the orifice head loss and the standard head loss includes:

[0027] When the orifice head loss is greater than the standard head loss, reduce the orifice diameter of the throttle orifice plate;

[0028] When the orifice plate head loss is less than the standard head loss, increase the orifice diameter of the throttle orifice plate;

[0029] When the orifice plate head loss is equal to the standard head loss, stop adjusting the orifice diameter of the throttle orifice plate.

[0030] In a second aspect, the present application also provides a spray system detection device, including:

[0031] An image acquisition module for acquiring an isometric view of the spray system in a nuclear power plant;

[0032] A flow rate determination module for determining the target orifice plate flow rate through the throttle orifice plate in the circulation pipeline according to the isometric view;

[0033] A flow rate detection module for controlling the opening of the spray pump and detecting the pipeline flow rate in the circulation pipeline when the target orifice plate flow rate is within the standard flow rate range;

[0034] A pipeline detection module for sequentially controlling the opening of each isolation valve and detecting the opening time of the isolation valve and the reliability of the circulation pipeline when the pipeline flow rate in the circulation pipeline is detected to be a preset flow rate.

[0035] In a third aspect, the present application also provides a computer device, including a memory and a processor, the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0036] Acquire an isometric view of the spray system in a nuclear power plant;

[0037] Determine the target orifice plate flow rate through the throttle orifice plate in the circulation pipeline according to the isometric view;

[0038] When the target orifice plate flow rate is within the standard flow rate range, control the opening of the spray pump and detect the pipeline flow rate in the circulation pipeline;

[0039] When the pipeline flow rate in the circulation pipeline is detected to be a preset flow rate, sequentially control the opening of each isolation valve and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0040] In a fourth aspect, the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0041] Acquire an isometric view of the spray system in a nuclear power plant;

[0042] Determine the target orifice plate flow rate through the throttle orifice plate in the circulation pipeline according to the isometric view;

[0043] When the target orifice plate flow rate is within the standard flow rate range, control the opening of the spray pump and detect the pipeline flow rate in the circulation pipeline;

[0044] When the pipeline flow rate in the circulating pipeline is detected to be the preset flow rate, each isolation valve is controlled to open in sequence, and the opening time of the isolation valve and the reliability of the circulating pipeline are detected.

[0045] In a fifth aspect, the present application also provides a computer program product, including a computer program, which when executed by a processor implements the following steps:

[0046] Obtain the isometric drawing of the spray system in the nuclear power plant;

[0047] Determine the target orifice flow rate passing through the orifice plate in the circulating pipeline according to the isometric drawing;

[0048] When the target orifice flow rate is within the standard flow rate range, control the spray pump to start, and detect the pipeline flow rate in the circulating pipeline;

[0049] When the pipeline flow rate in the circulating pipeline is detected to be the preset flow rate, each isolation valve is controlled to open in sequence, and the opening time of the isolation valve and the reliability of the circulating pipeline are detected.

[0050] The above-mentioned spray system detection method, device, computer equipment and storage medium obtain the isometric drawing of the spray system in the nuclear power plant; determine the target orifice flow rate passing through the orifice plate in the circulating pipeline according to the isometric drawing; when the target orifice flow rate is within the standard flow rate range, control the spray pump to start, and detect the pipeline flow rate in the circulating pipeline; when the pipeline flow rate in the circulating pipeline is detected to be the preset flow rate, each isolation valve is controlled to open in sequence, and the opening time of the isolation valve and the reliability of the circulating pipeline are detected. In this embodiment, based on the isometric drawing of the spray system, the target orifice flow rate of the circulating pipeline can be calculated more accurately, avoiding the situation where the orifice flow rate target orifice flow rate passing through the orifice plate in the circulating pipeline does not match when directly starting the spray pump, reducing the potential risk of damage to the circulating pipeline during the detection of the spray system, reducing the detection cost of the spray system, and initially improving the detection efficiency of the spray system; when the target orifice flow rate is within the standard flow rate range, then control the spray pump to start. At this time, the circulating pipeline can withstand the flow pressure brought by the start of the spray pump, further ensuring the stability of the spray system; when the pipeline flow rate in the circulating pipeline is the preset flow rate, control the isolation valve to open in sequence to determine the operability of the isolation valve in the spray system and the reliability of the circulating pipeline, reducing unnecessary repeated processes during the detection of the spray system, and simply, efficiently and comprehensively completing the reliability detection of the spray system. Description of the Drawings

[0051] To more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or related technologies. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0052] Figure 1 The application environment diagram of a spray system detection method provided in this embodiment;

[0053] Figure 2A The flow schematic diagram of the first spray system detection method provided in this embodiment;

[0054] Figure 2B The schematic diagram of a nozzle provided in this embodiment;

[0055] Figure 3 The flow schematic diagram of a step for adjusting the orifice diameter of an orifice plate provided in this embodiment;

[0056] Figure 4 The flow schematic diagram of a step for head loss of an orifice plate provided in this embodiment;

[0057] Figure 5 The flow schematic diagram of the second spray system detection method provided in this embodiment;

[0058] Figure 6 The structural block diagram of a spray system detection device provided in this embodiment;

[0059] Figure 7 The internal structure diagram of a computer device provided in this embodiment. Detailed implementation manners

[0060] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the following further details the present application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0061] The spray system detection method provided by the embodiments of the present application can be applied as Figure 1In the application environment shown. Among them, this embodiment is applied to the control device 101 of the spray system. The spray system includes a circulation pipeline, as well as a spray pump 102 and at least one isolation valve 103 installed on the circulation pipeline. The computer device obtains the isometric view of the spray system in the nuclear power plant; according to the isometric view, determines the target orifice flow rate through the orifice plate in the circulation pipeline; when the target orifice flow rate belongs to the standard flow rate range, controls the spray pump 102 to start, and detects the pipeline flow rate in the circulation pipeline; when it is detected that the pipeline flow rate in the circulation pipeline is the preset flow rate, sequentially controls each isolation valve 103 to open, and detects the opening time of the isolation valve and the reliability of the circulation pipeline. Among them, the computer device can be either a terminal or a server. The terminal can be, but is not limited to, various personal computers, laptop computers, smart phones, tablet computers, Internet of Things devices, and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, etc. The portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The server can be implemented by an independent server or a server cluster composed of multiple servers.

[0062] In an exemplary embodiment, as Figure 2A shown, a method for detecting a spray system is provided. Taking the computer device in Figure 1 as an example, the method includes the following steps 201 to step 204. Among them:

[0063] Step 201, obtain the isometric view of the spray system in the nuclear power plant.

[0064] Among them, the spray system can be understood as a system that reduces the pressure and temperature of the containment in the nuclear power plant by spraying condensed steam. Exemplarily, such as the containment spray system (EAS). There are four annular spray headers on the circulation pipeline, fixed at the top of the containment, and the center is located on the central axis of the reactor building to ensure that the spray of each pipeline can cover the entire containment. There are a total of 506 nozzles on the spray header, the nozzle diameter is 9.5 mm, the average water droplet diameter is 0.27 mm, and the maximum water droplet diameter is 1.4 mm. The isometric view can be understood as the graph obtained by projecting the spray system onto a single projection plane.

[0065] Specifically, the computer device obtains the pre-stored isometric view of the spray system in the nuclear power plant, and obtains information such as the total length of the circulation pipeline and the number of pipeline accessories from the isometric view.

[0066] It should be noted that before the reliability test of the spray system in the nuclear power plant, the following should also be completed: checking whether the computer equipment in the spray system (such as the unit equipment that controls the opening and closing of the spray pump and isolation valve) has been set up; connecting the drain pipe to the boron water recovery system (RPE system) so that the spray condensate steam in the spray pump can be discharged from the containment; installing a temporary pipe on the 20-meter platform in the containment from the current flange on the circulation pipeline and connecting the temporary pipe to the in-core component pool (such as the fuel pool), and at the same time installing a temporary gasket and a temporary blind plate on the preset pipeline in the temporary pipeline; checking the patency of the dome nozzles.

[0067] Among them, the temporary pipeline can be understood as a pipeline designed to meet the detection requirements of the spray system. The temporary pipeline is also designed with fixed brackets, bolts, gaskets and temporary orifice plates. The nominal diameter of the pipeline (i.e., the average value of the outer diameter and inner diameter of the pipeline) is 150 mm and the wall thickness is equal to 3.4 mm. In order to facilitate the installation and disassembly of the temporary pipeline, flange connections are also designed on each temporary pipeline.

[0068] Exemplarily, the method of installing the temporary gasket and the temporary blind plate can be as follows: Assume that there are two flanges with a nominal diameter of 250 mm (elevation 46 meters) on both the temporary pipeline 1 and the temporary pipeline 2. Remove these two flanges and replace them with temporary flanges. At the same time, install a temporary blind plate between these two flanges. The material of this temporary blind plate can be metastable austenitic stainless steel (lCrl8Ni9Ti), and the thickness can be 8 mm. The tightening torques of both the temporary blind plate and the temporary flange can be 16 daN.m. After the detection of the spray system is completed, the temporary blind plate and the temporary flange can be removed and the formal permanent flanges can be installed.

[0069] Exemplarily, as Figure 2B shown in the nozzle schematic diagram, the circulation pipeline 1 is connected to the nozzle 3 through the short pipe 2. The water flowing through the circulation pipeline can enter the nozzle through the short pipe and then be sprayed out by the nozzle to achieve the purpose of reducing the pressure and temperature of the containment. Among them, the method of checking the patency of the dome nozzles can be: According to the structure of the nozzle 3 and the characteristics of the on-site environment, use an endoscope to check whether there are any blocking foreign objects within the nozzle range 4 to determine whether it is unobstructed.

[0070] Step 202, according to the isometric drawing, determine the target orifice flow rate through the orifice plate in the circulation pipeline;

[0071] One optional implementation method can be: According to the isometric drawing, set up a spray system simulation model; through this spray system simulation model, determine the orifice flow rate through the orifice plate in the circulation pipeline; in the case that the initial orifice flow rate does not belong to the standard flow rate range, adjust the orifice diameter of the orifice in the spray system simulation model, and determine the orifice flow rate through the adjusted orifice plate again until the orifice flow rate belongs to the standard flow rate range to obtain the target orifice flow rate and the target orifice diameter.

[0072] Another optional implementation method may be that during the determination of the orifice plate flow rate, it may deviate from the standard flow rate range. Therefore, it is necessary to adjust the orifice plate flow rate of the throttle orifice plate as much as possible so that the target orifice plate flow rate belongs to the standard flow rate range. That is, according to the isometric drawing, determine the pipeline length and pipeline diameter of the circulation pipeline; according to the pipeline length and pipeline diameter, adjust the orifice diameter of the throttle orifice plate to adjust the orifice plate flow rate of the orifice diameter; use the adjusted orifice plate flow rate as the target orifice plate flow rate.

[0073] Specifically, parse the pipeline length and pipeline diameter of the circulation pipeline from the isometric drawing; through a pre-trained orifice diameter determination model, determine the orifice diameter of the throttle orifice plate according to the pipeline length and pipeline diameter until the orifice plate flow rate belongs to the standard flow rate range, and obtain the target orifice plate flow rate and the target orifice diameter.

[0074] Step 203, when the target orifice plate flow rate belongs to the standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline.

[0075] Among them, the standard flow rate range can be 600m 3 / h - 1250m 3 / h.

[0076] Specifically, when the target orifice diameter flow rate belongs to the standard flow rate range, it proves that the pipeline flow rate can bear the pipeline flow rate output by the spray pump at this time. At this time, the computer device controls the spray pump to start, and at the same time, detects the pipeline flow rate in the circulation pipeline.

[0077] Step 204, when the pipeline flow rate in the detected circulation pipeline is the preset flow rate, control each isolation valve to open in sequence and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0078] Among them, the preset flow rate can be 814m 3 / h. This preset flow rate is the flow rate value obtained by removing the ejector flow rate on the basis of the preset pump flow rate. The preset pump flow rate is 850m 3 / h, and the ejector flow rate is 36m 3 / h.

[0079] Specifically, when the pipeline flow rate in the detected circulation pipeline is the preset flow rate, it proves that the flow rate in the circulation pipeline is in a state of exceeding the maximum flow rate that the pipeline can bear at this time. Control each isolation valve to open in sequence; at this time, detect whether the isolation valve is operable, the reliability of the circulation pipeline (such as whether the circulation pipeline is damaged), and the upstream and downstream pressure difference situation; in the case of the maximum upstream and downstream pressure difference, verify whether the opening time of the isolation valve is less than the preset duration (such as 21s); if so, it proves that the reliability of the isolation valve in the spray system is normal, otherwise, the reliability is abnormal.

[0080] The above spray system detection method, device, computer equipment and storage medium obtain the isometric view of the spray system in the nuclear power plant; according to the isometric view, determine the target orifice flow rate through the orifice plate in the circulation pipeline; when the target orifice flow rate belongs to the standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline; when the pipeline flow rate in the circulation pipeline is detected to be the preset flow rate, control each isolation valve to open in sequence and detect the opening time of the isolation valve and the reliability of the circulation pipeline. In this embodiment, based on the isometric view of the spray system, the target orifice flow rate of the circulation pipeline can be calculated more accurately, avoiding the situation that the target orifice flow rate of the orifice plate in the circulation pipeline does not match when directly starting the spray pump, reducing the potential risk of damage to the circulation pipeline during the detection of the spray system, and initially improving the detection efficiency of the spray system; when the target orifice flow rate belongs to the standard flow rate range, then control the spray pump to start. At this time, the circulation pipeline can withstand the flow pressure brought by the start of the spray pump, further ensuring the stability of the spray system; when the pipeline flow rate in the circulation pipeline is the preset flow rate, control the isolation valve to open in sequence to determine the operability of the isolation valve in the spray system and the reliability of the circulation pipeline, reducing unnecessary repeated processes during the detection of the spray system, and simply, efficiently and comprehensively completing the reliability detection of the spray system.

[0081] Figure 3 It is a schematic flow chart of the orifice plate aperture adjustment step in an embodiment. The step of adjusting the orifice plate aperture of the orifice plate according to the pipeline length and pipeline diameter in the above embodiment is refined, and an orifice plate aperture adjustment method is given, including the following steps:

[0082] Step 301, obtain the preset friction factor along the path, local resistance coefficient and fluid density.

[0083] Among them, the friction factor along the path can be understood as a dimensionless parameter that measures the energy loss per unit length caused by friction with the pipe wall when the fluid flows in the circulation pipeline; the local resistance coefficient can be understood as the ratio of the local resistance generated by the fluid flowing through the circulation pipeline to the corresponding dynamic pressure, and its value is also a dimensionless number. The fluid density can be understood as the mass of the fluid per unit volume flowing through the circulation pipeline. The friction factor along the path, local resistance coefficient and fluid density can all be obtained from the nuclear power plant operation specifications and outline requirements. It should be noted that the friction factor along the path can also be determined by the Alitzhul formula.

[0084] Step 302, determine the orifice head loss of the orifice plate according to the pipeline length, pipeline diameter, friction factor along the path, local resistance coefficient and fluid density.

[0085] Specifically, a orifice plate head loss determination model is pre-trained. The pipeline length, pipeline diameter, friction factor along the path, local resistance coefficient, and fluid density are input into the orifice plate head loss determination model to determine the orifice plate head loss of the throttle orifice plate.

[0086] Step 303: Adjust the orifice diameter of the throttle orifice plate according to the magnitude relationship between the orifice plate head loss and the standard head loss.

[0087] One optional implementation is: Determine the magnitude relationship between the orifice plate head loss and the standard head loss; Adjust the orifice diameter of the throttle orifice plate according to the orifice diameter adjustment method corresponding to this magnitude relationship.

[0088] Another optional implementation is: When the orifice plate head loss is greater than the standard head loss, reduce the orifice diameter of the throttle orifice plate; When the orifice plate head loss is less than the standard head loss, increase the orifice diameter of the throttle orifice plate; When the orifice plate head loss is equal to the standard head loss, stop adjusting the orifice diameter of the throttle orifice plate.

[0089] Exemplarily, the method of adjusting the orifice diameter of the throttle orifice plate can be to adjust the orifice diameter of a preset size; It can also be to determine the adjustment size of the orifice diameter according to the difference between the orifice plate head loss and the standard head loss to adjust the orifice diameter.

[0090] In this embodiment, by comparing the magnitude relationship between the orifice plate head loss and the standard head loss, it can be determined whether the orifice plate flow rate through the throttle orifice plate meets the requirements, so as to accurately adjust the orifice diameter of the throttle orifice plate in reverse, further improving the accuracy of orifice diameter determination, avoiding repeatedly determining the orifice diameter by adjusting the orifice diameter by injecting water into the throttle orifice plate to determine the orifice plate flow rate, improving the adjustment efficiency of the orifice diameter, and reducing the cost of adjusting the orifice diameter.

[0091] Figure 4 It is a schematic flow chart of the step of determining the orifice plate head loss in an embodiment. It details the step of determining the orifice plate head loss of the throttle orifice plate according to the pipeline length, pipeline diameter, friction factor along the path, local resistance coefficient, and fluid density in the above embodiment, and gives an optional method for determining the orifice plate head loss, including the following steps:

[0092] Step 401: Determine the friction loss along the path of the throttle orifice plate according to the pipeline length, pipeline diameter, and friction factor along the path.

[0093] Among them, the friction loss along the path can be understood as the mechanical energy loss caused by the fluid viscosity and the friction of the pipe wall when the fluid flows in the circulating pipeline.

[0094] Specifically, according to the pipeline length, pipeline diameter, and friction factor, the friction loss of the orifice plate is determined through the following formula (1-1).

[0095] (1-1)

[0096] Among them, Δp friction represents the friction loss, λ represents the friction factor, L represents the pipeline length, D represents the pipeline diameter, ρ represents the fluid density, and v represents the fluid velocity.

[0097] Step 402 determines the local resistance loss of the orifice plate according to the local resistance coefficient and the fluid density.

[0098] Among them, the local resistance loss can be understood as the loss generated by the sudden change of the fluid flowing through the circulating pipeline (such as cross-sectional change, direction change, or velocity change).

[0099] Specifically, according to the local resistance coefficient and the fluid density, the local resistance loss of the orifice plate is determined through the following formula (1-2).

[0100] (1-2)

[0101] Among them, Δp local represents the local resistance loss, ξ represents the local resistance coefficient, ρ represents the fluid density, and v represents the fluid velocity.

[0102] Step 403 determines the orifice head loss of the orifice plate according to the friction loss and local resistance loss of the orifice plate.

[0103] One optional implementation is: taking the sum of the friction loss and local resistance loss of the orifice plate as the orifice head loss of the orifice plate.

[0104] Another optional implementation is: obtaining the head of the spray pump; taking the sum of the friction loss and local resistance loss of the orifice plate as the orifice resistance loss of the orifice plate; taking the sum of the head and the orifice resistance loss as the orifice head loss of the orifice plate.

[0105] In this embodiment, according to the pipeline length, pipeline diameter, and friction factor, the friction loss of the orifice plate is determined; according to the local resistance coefficient and the fluid density, the local resistance loss of the orifice plate is determined; according to the friction loss and local resistance loss of the orifice plate, the orifice head loss of the orifice plate is determined, which can accurately determine the head loss of the orifice plate.

[0106] In one embodiment, this embodiment gives an optional method for detecting a spray system, taking the application of this method to a server as an example for illustration. AsFigure 5 As shown in Figure 5 , the method includes the following steps:

[0107] Step 501, obtain the isometric drawing of the spray system in the nuclear power plant.

[0108] Step 502, determine the pipeline length and pipeline diameter of the circulation pipeline according to the isometric drawing.

[0109] Step 503, obtain the preset friction loss coefficient, local resistance coefficient, and fluid density.

[0110] Step 504, determine the friction loss of the orifice plate according to the pipeline length, pipeline diameter, and friction loss coefficient.

[0111] Step 505, determine the local resistance loss of the orifice plate according to the local resistance coefficient and fluid density.

[0112] Step 506, obtain the head of the spray pump.

[0113] Step 507, take the sum value between the friction loss and the local resistance loss of the orifice plate as the orifice resistance loss of the orifice plate.

[0114] Step 508, take the sum value between the head and the orifice resistance loss as the orifice head loss of the orifice plate.

[0115] Step 509, adjust the orifice diameter of the orifice plate according to the magnitude relationship between the orifice head loss and the standard head loss, so as to adjust the orifice flow rate of the orifice diameter.

[0116] Specifically, when the orifice head loss is greater than the standard head loss, reduce the orifice diameter of the orifice plate; when the orifice head loss is less than the standard head loss, increase the orifice diameter of the orifice plate; when the orifice head loss is equal to the standard head loss, stop adjusting the orifice diameter of the orifice plate.

[0117] Step 510, take the adjusted orifice flow rate as the target orifice flow rate.

[0118] Step 511, when the target orifice flow rate belongs to the standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline.

[0119] Step 512, when the pipeline flow rate in the circulation pipeline is detected to be the preset flow rate, control each isolation valve to open in sequence, and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0120] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are sequentially shown 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, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0121] Based on the same inventive concept, an embodiment of the present application further provides a spray system detection device for implementing the above-mentioned spray system detection method. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the spray system detection device provided below can refer to the limitations on the spray system detection method in the above text, and will not be repeated here.

[0122] In an exemplary embodiment, as Figure 6 shown, a spray system detection device is provided, including: an image acquisition module 10, a flow rate determination module 11, a flow rate detection module 12, and a pipeline detection module 13, where:

[0123] The image acquisition module 10 is used to acquire an isometric view of the spray system in the nuclear power plant;

[0124] The flow rate determination module 11 is used to determine the target orifice flow rate through the orifice plate in the circulation pipeline according to the isometric view;

[0125] The flow rate detection module 12 is used to control the opening of the spray pump and detect the pipeline flow rate in the circulation pipeline when the target orifice flow rate belongs to the standard flow rate range;

[0126] The pipeline detection module 13 is used to sequentially control the opening of each isolation valve and detect the opening time of the isolation valve and the reliability of the circulation pipeline when the pipeline flow rate in the circulation pipeline is detected to be the preset flow rate.

[0127] In some embodiments, the flow rate determination module 11 includes:

[0128] The pipeline determination unit is used to determine the pipeline length and pipeline diameter of the circulation pipeline according to the isometric view;

[0129] The flow rate adjustment unit is used to adjust the orifice diameter of the orifice plate according to the pipeline length and pipeline diameter to adjust the orifice flow rate of the orifice diameter;

[0130] A flow determination unit for using the adjusted orifice plate flow rate as the target orifice plate flow rate.

[0131] In some embodiments, the flow rate adjustment unit is further configured to obtain a preset friction loss coefficient, local resistance coefficient, and fluid density; determine the orifice plate head loss of the throttle orifice plate according to the pipeline length, pipeline diameter, friction loss coefficient, local resistance coefficient, and fluid density; and adjust the orifice diameter of the throttle orifice plate according to the magnitude relationship between the orifice plate head loss and the standard head loss.

[0132] In some embodiments, the flow rate adjustment unit is further configured to determine the friction resistance loss of the throttle orifice plate according to the pipeline length, pipeline diameter, and friction loss coefficient; determine the local resistance loss of the throttle orifice plate according to the local resistance coefficient and fluid density; and determine the orifice plate head loss of the throttle orifice plate according to the friction resistance loss and local resistance loss of the throttle orifice plate.

[0133] In some embodiments, the flow rate adjustment unit is further configured to obtain the head of the spray pump; use the sum value between the friction resistance loss and the local resistance loss of the throttle orifice plate as the orifice plate resistance loss of the throttle orifice plate; and use the sum value between the head and the orifice plate resistance loss as the orifice plate head loss of the throttle orifice plate.

[0134] In some embodiments, the flow rate adjustment unit is further configured to reduce the orifice diameter of the throttle orifice plate when the orifice plate head loss is greater than the standard head loss; increase the orifice diameter of the throttle orifice plate when the orifice plate head loss is less than the standard head loss; and stop adjusting the orifice diameter of the throttle orifice plate when the orifice plate head loss is equal to the standard head loss.

[0135] Each module in the above spray system detection device can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor of the computer device in hardware form or be independent of it, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to the above respective modules.

[0136] In an exemplary embodiment, a computer device is provided. The computer device can be a server, and its internal structure diagram can be as Figure 7As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O), and a communication interface. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data. The input / output interface of the computer device is used to exchange information between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals through a network connection. When the computer program is executed by the processor, it implements a method for detecting a sprinkler system.

[0137] Those skilled in the art can understand that Figure 7 the structure shown in is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the computer device to which the solution of this application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0138] In an exemplary embodiment, a computer device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, the following steps are implemented:

[0139] Obtain the isometric drawing of the sprinkler system in the nuclear power plant;

[0140] According to the isometric drawing, determine the target orifice flow rate through the orifice plate in the circulation pipeline;

[0141] When the target orifice flow rate belongs to the standard flow rate range, control the sprinkler pump to start and detect the pipeline flow rate in the circulation pipeline;

[0142] When it is detected that the pipeline flow rate in the circulation pipeline is the preset flow rate, control each isolation valve to open in sequence, and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0143] In one embodiment, when the processor executes the computer program, the following steps are also implemented:

[0144] According to the isometric drawing, determine the pipeline length and pipeline diameter of the circulation pipeline;

[0145] According to the pipeline length and pipeline diameter, adjust the orifice diameter of the orifice plate to adjust the orifice flow rate of the orifice diameter;

[0146] Take the adjusted orifice plate flow rate as the target orifice plate flow rate.

[0147] In one embodiment, when the processor executes the computer program, the following steps are further implemented:

[0148] Obtain the preset friction loss coefficient, local resistance coefficient, and fluid density;

[0149] Determine the orifice plate head loss of the throttle orifice plate according to the pipeline length, pipeline diameter, friction loss coefficient, local resistance coefficient, and fluid density;

[0150] Adjust the orifice diameter of the throttle orifice plate according to the magnitude relationship between the orifice plate head loss and the standard head loss.

[0151] In one embodiment, when the processor executes the computer program, the following steps are further implemented:

[0152] Determine the friction loss of the throttle orifice plate according to the pipeline length, pipeline diameter, and friction loss coefficient;

[0153] Determine the local resistance loss of the throttle orifice plate according to the local resistance coefficient and fluid density;

[0154] Determine the orifice plate head loss of the throttle orifice plate according to the friction loss and local resistance loss of the throttle orifice plate.

[0155] In one embodiment, when the processor executes the computer program, the following steps are further implemented:

[0156] Obtain the head of the spray pump;

[0157] Take the sum of the friction loss and local resistance loss of the throttle orifice plate as the orifice resistance loss of the throttle orifice plate;

[0158] Take the sum of the head and the orifice resistance loss as the orifice plate head loss of the throttle orifice plate.

[0159] In one embodiment, when the processor executes the computer program, the following steps are further implemented:

[0160] In the case where the orifice plate head loss is greater than the standard head loss, reduce the orifice diameter of the throttle orifice plate;

[0161] In the case where the orifice plate head loss is less than the standard head loss, increase the orifice diameter of the throttle orifice plate;

[0162] In the case where the orifice plate head loss is equal to the standard head loss, stop adjusting the orifice diameter of the throttle orifice plate.

[0163] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0164] Obtain the isometric view of the spray system in the nuclear power plant;

[0165] Determine the target orifice flow rate through the orifice plate in the circulation pipeline according to the isometric view;

[0166] When the target orifice flow rate belongs to the standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline;

[0167] When it is detected that the pipeline flow rate in the circulation pipeline is the preset flow rate, control each isolation valve to open in sequence and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0168] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:

[0169] Determine the pipeline length and pipeline diameter of the circulation pipeline according to the isometric view;

[0170] Adjust the orifice diameter of the orifice plate according to the pipeline length and pipeline diameter to adjust the orifice flow rate of the orifice diameter;

[0171] Take the adjusted orifice flow rate as the target orifice flow rate.

[0172] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:

[0173] Obtain the preset friction factor along the way, local resistance coefficient and fluid density;

[0174] Determine the orifice head loss of the orifice plate according to the pipeline length, pipeline diameter, friction factor along the way, local resistance coefficient and fluid density;

[0175] Adjust the orifice diameter of the orifice plate according to the magnitude relationship between the orifice head loss and the standard head loss.

[0176] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:

[0177] Determine the friction loss along the way of the orifice plate according to the pipeline length, pipeline diameter and friction factor along the way;

[0178] Determine the local resistance loss of the orifice plate according to the local resistance coefficient and fluid density;

[0179] Determine the orifice head loss of the orifice plate according to the friction loss along the way and the local resistance loss of the orifice plate.

[0180] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented:

[0181] Obtain the head of the spray pump;

[0182] Take the sum of the frictional resistance loss and the local resistance loss of the orifice plate as the orifice resistance loss of the orifice plate;

[0183] Take the sum of the head and the orifice resistance loss as the orifice head loss of the orifice plate.

[0184] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0185] When the orifice head loss is greater than the standard head loss, reduce the orifice diameter of the orifice plate;

[0186] When the orifice head loss is less than the standard head loss, increase the orifice diameter of the orifice plate;

[0187] When the orifice head loss is equal to the standard head loss, stop adjusting the orifice diameter of the orifice plate.

[0188] In one embodiment, a computer program product is provided, including a computer program that implements the following steps when executed by a processor:

[0189] Obtain the isometric drawing of the spray system in the nuclear power plant;

[0190] Determine the target orifice flow rate through the orifice plate in the circulation pipeline according to the isometric drawing;

[0191] When the target orifice flow rate belongs to the standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline;

[0192] When the pipeline flow rate in the circulation pipeline is detected to be the preset flow rate, control each isolation valve to open in sequence and detect the opening time of the isolation valve and the reliability of the circulation pipeline.

[0193] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0194] Determine the pipeline length and pipeline diameter of the circulation pipeline according to the isometric drawing;

[0195] Adjust the orifice diameter of the orifice plate according to the pipeline length and pipeline diameter to adjust the orifice flow rate of the orifice diameter;

[0196] Take the adjusted orifice flow rate as the target orifice flow rate.

[0197] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0198] Obtain the preset frictional resistance coefficient, local resistance coefficient and fluid density;

[0199] Determine the orifice head loss of the orifice plate according to the pipeline length, pipeline diameter, friction factor along the way, local resistance coefficient, and fluid density;

[0200] Adjust the orifice diameter of the orifice plate according to the magnitude relationship between the orifice head loss and the standard head loss.

[0201] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0202] Determine the frictional resistance loss of the orifice plate according to the pipeline length, pipeline diameter, and friction factor along the way;

[0203] Determine the local resistance loss of the orifice plate according to the local resistance coefficient and fluid density;

[0204] Determine the orifice head loss of the orifice plate according to the frictional resistance loss and local resistance loss of the orifice plate.

[0205] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0206] Obtain the head of the spray pump;

[0207] Take the sum value between the frictional resistance loss and local resistance loss of the orifice plate as the orifice resistance loss of the orifice plate;

[0208] Take the sum value between the head and the orifice resistance loss as the orifice head loss of the orifice plate.

[0209] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0210] When the orifice head loss is greater than the standard head loss, reduce the orifice diameter of the orifice plate;

[0211] When the orifice head loss is less than the standard head loss, increase the orifice diameter of the orifice plate;

[0212] When the orifice head loss is equal to the standard head loss, stop adjusting the orifice diameter of the orifice plate.

[0213] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with relevant regulations.

[0214] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0215] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0216] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method for detecting a spraying system, characterized in that, A control device applied to a spray system, the spray system including a circulation pipeline, as well as a spray pump and at least one isolation valve installed on the circulation pipeline, the method including: Obtain the isometric drawing of the spray system in the nuclear power plant; According to the isometric drawing, determine the target orifice flow rate through the orifice plate in the circulation pipeline; When the target orifice flow rate belongs to the standard flow rate range, control the spray pump to start and detect the pipeline flow rate in the circulation pipeline; When it is detected that the pipeline flow rate in the circulation pipeline is the preset flow rate, control each of the isolation valves to open in sequence and detect the opening time of the isolation valve and the reliability of the circulation pipeline; 2. The method according to claim 1, characterized in that, The determining the target orifice flow rate through the orifice plate according to the isometric drawing includes: According to the isometric drawing, determine the pipeline length and pipeline diameter of the circulation pipeline; According to the pipeline length and the pipeline diameter, adjust the orifice diameter of the orifice plate to adjust the orifice flow rate of the orifice diameter; Take the adjusted orifice flow rate as the target orifice flow rate.

3. The method according to claim 2, wherein The adjusting the orifice diameter of the orifice plate according to the pipeline length and the pipeline diameter includes: Obtain the preset friction factor along the way, local resistance coefficient and fluid density; According to the pipeline length, the pipeline diameter, the friction factor along the way, the local resistance coefficient and the fluid density, determine the orifice head loss of the orifice plate; According to the magnitude relationship between the orifice head loss and the standard head loss, adjust the orifice diameter of the orifice plate.

4. The method according to claim 3, characterized in that, The determining the orifice head loss of the orifice plate according to the pipeline length, pipeline diameter, friction factor along the way, local resistance coefficient and fluid density includes: According to the pipeline length, the pipeline diameter and the friction factor along the way, determine the friction loss along the way of the orifice plate; According to the local resistance coefficient and the fluid density, determine the local resistance loss of the orifice plate; According to the friction loss along the way and the local resistance loss of the orifice plate, determine the orifice head loss of the orifice plate.

5. The method according to claim 4, wherein The determining the orifice head loss of the orifice plate according to the friction loss along the way and the local resistance loss of the orifice plate includes: Obtain the head of the spray pump; Take the sum value between the friction loss along the way and the local resistance loss of the orifice plate as the orifice resistance loss of the orifice plate; Take the sum value between the head and the orifice resistance loss as the orifice head loss of the orifice plate.

6. The method according to claim 3, wherein The adjusting the orifice diameter of the orifice plate according to the magnitude relationship between the orifice head loss and the standard head loss includes: When the orifice head loss is greater than the standard head loss, reduce the orifice diameter of the orifice plate; When the orifice head loss is less than the standard head loss, increase the orifice diameter of the orifice plate; When the orifice head loss is equal to the standard head loss, stop adjusting the orifice diameter of the orifice plate.

7. A spray system detection device, characterized in that, The device includes: An image acquisition module for obtaining the isometric drawing of the spray system in the nuclear power plant; A flow determination module, configured to determine a target orifice plate flow rate passing through an orifice plate in the circulation pipeline according to the isometric drawing; A flow detection module, configured to control the spray pump to turn on and detect the pipeline flow rate in the circulation pipeline when the target orifice plate flow rate belongs to a standard flow rate range; A pipeline detection module, configured to sequentially control each of the isolation valves to open and detect the opening time of the isolation valve and the reliability of the circulation pipeline when the pipeline flow rate in the circulation pipeline is detected to be a preset flow rate; 8. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

Images