Filter Performance Evaluation Method and Device System

Abstract

This application relates to a method and device system for evaluating the performance of a filter. The method includes: when the water level reaches a preset water level, controlling the purification of the test water tank, the first waterway, and the second waterway; if the purification is completed, controlling the swing table to be in the first working state, triggering the throwing of impurity fragments into the test water tank, and if the filter parameters meet the first working parameter conditions, obtaining the first fragments and performing a water change operation on the test water tank; when the water level reaches the preset water level again, controlling the purification again; if the re-purification is completed, controlling the swing table to be in the second working state and throwing the impurity fragments into the test water tank, and if the filter parameters meet the second working parameter conditions, obtaining the second fragments; evaluating the performance of the test filter based on the first fragments and the second fragments. Using this method can evaluate the influence of the swing condition on the downstream effect of the filter.

Description

Technical Field

[0001] This application relates to the technical field of test devices for nuclear reactors, and particularly to a method and device system for evaluating the performance of filters. Background Art

[0002] After a loss-of-coolant accident occurs in the reactor coolant loop inside the containment, due to the jet effect of high-temperature and high-pressure water at the break, a large amount of debris such as thermal insulation materials, paint, concrete, and coatings will be generated. At this time, the safety injection system is activated and continuously injects water into the reactor core to ensure that the reactor core is sufficiently cooled. After the safety injection system injects all the reserved water sources, it will draw the cooling water collected from the break through the recirculation filter to cool the reactor core in a cycle. Since various debris impurities generated at the break will be entrained during the collection of the cooling water, the recirculation filter will filter the cooling water containing impurities to prevent the impurities in the cooling water from blocking the flow path.

[0003] Although most large-sized debris will be intercepted by the recirculation filter, there is still a part of small-sized debris that will pass through the recirculation filter and enter the downstream. These debris entering the downstream will deposit in downstream pipelines, equipment (such as pumps, valves, heat exchangers, etc.) and reactor core fuel assemblies, which will have a certain impact on the performance of the above-mentioned equipment and the heat transfer of the reactor core fuel assemblies. In the current technology, the research on the downstream effect of recirculation filters for onshore nuclear reactors is carried out, and it is impossible to evaluate the influence of the swaying condition on the downstream effect of the recirculation filter. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a filter performance evaluation method, device, system, computer-readable storage medium, and computer program product that can evaluate the performance of the filter under swaying conditions.

[0005] In a first aspect, this application provides a filter performance evaluation method, which is applied to a controller in a performance evaluation system. The performance evaluation system further includes a shaking table, a debris collection device, and a test water tank arranged on the shaking table. A test filter is arranged inside the test water tank. The water outlet end of the test filter is connected to the inlet of the debris collection device through a first valve on a first water path, and the outlet of the debris collection device is connected to the test water tank through a second water path;

[0006] The method includes:

[0007] When the water level of the test water tank reaches a preset water level, control the purification of the test water tank, the first water path, and the second water path;

[0008] If the test water tank, the first water circuit, and the second water circuit are purified, control the swing table to be in a first working state, and trigger the injection of a specified number of impurity fragments into the test water tank, where the first working state is one of the start state or the shutdown state;

[0009] If the filter parameters of the test filter meet the first working parameter conditions, obtain the first fragments in the fragment collection device, and trigger an operation to change the water in the test water tank;

[0010] When the water level of the test water tank reaches the preset water level again, control the test water tank, the first water circuit, and the second water circuit to be purified again;

[0011] If the test water tank, the first water circuit, and the second water circuit are purified again, control the swing table to be in a second working state, and trigger the injection of the specified number of impurity fragments into the test water tank, where the second working state is the other state of the start state or the shutdown state;

[0012] If the filter parameters of the test filter meet the second working parameter conditions, obtain the second fragments in the fragment collection device;

[0013] Based on the first fragments and the second fragments, evaluate the performance of the test filter.

[0014] In one embodiment, the system further includes a third water circuit. The first water circuit includes a first water branch and a second water branch, and the second water circuit includes a third water branch and a fourth water branch; the water outlet end of the test filter is further connected to one end of a second valve on the third water circuit via the first water branch, and the other end of the second valve is connected to the fourth water branch and is connected to the test water tank via the fourth water branch;

[0015] Before controlling the purification of the test water tank, the first water circuit, and the second water circuit, it further includes: controlling the opening of the second valve on the third water circuit, closing the first valve on the second water branch, and controlling the water in the test water tank to circulate in the first water branch, the third branch, and the fourth water branch at a preset flow rate.

[0016] In one embodiment, the method for determining the preset flow rate includes: obtaining the surface area of the nuclear reactor filter and the surface area of the test filter of the test filter; determining the area reduction coefficient based on the quotient of the surface area of the nuclear reactor filter and the surface area of the test filter; and determining the preset flow rate based on the rated flow rate of the preset circulation pump and the area reduction coefficient.

[0017] In one embodiment, if the first working state is the starting state and the second working state is the closing state, the first working parameter condition is the differential pressure condition of the test filter, and the second working parameter condition is at least one of the first time condition and the differential pressure condition of the test filter.

[0018] In one embodiment, if the first working state is the closing state and the second working state is the starting state, the first working parameter condition is the differential pressure condition of the test filter, and the second working parameter condition is at least one of the second time condition and the differential pressure condition of the test filter, where the first time condition is different from the second time condition.

[0019] In one embodiment, evaluating the performance of the test filter based on the first fragment and the second fragment includes: respectively obtaining the first mass of the first fragment and the second mass of the second fragment; and evaluating the performance of the test filter under the swinging condition according to the first mass and the second mass.

[0020] In one embodiment, respectively obtaining the first mass of the first fragment and the second mass of the second fragment includes: controlling the drying and weighing of the filter bag in the fragment collection device to obtain the initial mass of the first fragment of the first fragment and the initial mass of the second fragment of the second fragment; determining the first mass based on the mass difference between the initial mass of the filter bag and the initial mass of the first fragment, and determining the second mass based on the mass difference between the initial mass of the filter bag and the initial mass of the second fragment.

[0021] In a second aspect, the present application further provides a filter performance evaluation device, and the device includes:

[0022] A purification module, configured to control the purification of the test water tank, the first water path, and the second water path when the water level of the test water tank reaches a preset water level, and configured to control the purification of the test water tank, the first water path, and the second water path again when the water level of the test water tank reaches the preset water level again;

[0023] A control module, configured to control the swing table to be in a first working state and trigger the delivery of a specified number of impurity fragments into the test water tank if the test water tank, the first water path, and the second water path are purified, where the first working state is one of the starting state or the closing state, and configured to control the swing table to be in a second working state and trigger the delivery of a specified number of impurity fragments into the test water tank if the test water tank, the first water path, and the second water path are purified again, where the second working state is the other state of the starting state or the closing state;

[0024] A first fragment acquisition module, configured to acquire a first fragment in a fragment collection device and trigger a water replacement operation for a test water tank if the filter parameters of a test filter meet a first operating parameter condition;

[0025] A second fragment acquisition module, configured to acquire a second fragment in the fragment collection device if the filter parameters of the test filter meet a second operating parameter condition;

[0026] An evaluation module, configured to evaluate the performance of the test filter based on the first fragment and the second fragment.

[0027] In a third aspect, the present application further provides a filter performance evaluation system, including a controller, a swing table, a fragment collection device, a test water tank disposed on the swing table, a first water path, and a second water path. A test filter is disposed inside the test water tank. The water outlet end of the test filter is connected to the inlet of the fragment collection device via a first valve on the first water path. The outlet of the fragment collection device is connected to the test water tank through the second water path. The memory stores a computer program, and when the controller executes the computer program, the steps of the above filter performance evaluation method are implemented.

[0028] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a controller, the steps of the above filter performance evaluation method are implemented.

[0029] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a controller, the steps of the above filter performance evaluation method are implemented.

[0030] The above-mentioned filter performance evaluation method, device, system, storage medium and computer program product. Among them, after the water level in the test water tank reaches the preset water level and the test water tank, the first waterway and the second waterway are purified, the swing table is controlled to be in the first working state, where the first working state is one of the start state or the off state. After the swing table is in the first working state, if the filter parameters of the test filter meet the first working parameter conditions, the first debris in the debris collection device is obtained, and a water change operation for the test water tank is triggered. When the water level in the test water tank reaches the preset water level again, the control is to purify the test water tank, the first waterway and the second waterway again; if the test water tank, the first waterway and the second waterway are purified again, the swing table is controlled to be in the second working state, and a specified number of impurity debris is triggered to be put into the test water tank, where the second working state is the other state of the start state or the off state. If the filter parameters of the test filter meet the second working parameter conditions, the second debris in the debris collection device is obtained; based on the first debris and the second debris, the performance of the test filter is evaluated. Thus, by keeping the initial state (water level, whether purified, etc.) of the test water tank consistent, when the swing table is in different working states, the debris when the filter parameters of the test filter meet the corresponding working condition parameters can be obtained, and the influence of the swing condition on the downstream effect of the filter can be evaluated. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural block diagram of a filter performance evaluation method in an embodiment;

[0032] Figure 2 is a structural block diagram of a filter performance evaluation method in another embodiment;

[0033] Figure 3 is a structural block diagram of a filter performance evaluation method in another embodiment;

[0034] Figure 4 is a schematic flow chart of a filter performance evaluation method in an embodiment;

[0035] Figure 5 is a schematic flow chart of a filter performance evaluation method in another embodiment;

[0036] Figure 6 is a structural block diagram of a filter performance evaluation device in an embodiment;

[0037] Figure 7 is an internal structural diagram of an electronic device in an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] In order to make the objectives, technical solutions and advantages of this application more clear and understandable, the following further details this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0039] The filter performance method provided by the embodiments of this application can be applied to, for example, Figure 1 the application performance evaluation system shown. Among them, Figure 1 the performance evaluation system shown includes a controller 102, a swing table 104, a debris collection device, and a test water tank 106 arranged on the swing table 104. Among them, a test filter 108 is arranged inside the test water tank 106. The water outlet end of the test filter 108 is connected to the inlet of the debris collection device 112 via a first valve 110 on a first waterway 114, and the outlet of the debris collection device 112 is connected to the test water tank 106 through a second waterway 116.

[0040] Among them, the swing table 104 refers to a device that can simulate sea conditions. After the controller 102 controls the start of the swing table 104, the swing table 104 can be further controlled to operate at a set swing frequency, swing angle, etc. The test water tank 106 is placed on the swing table 104. The test water tank 106 can be made of a transparent material, such as acrylic material, etc., so that the change of debris in the test water tank 106 can be easily observed. After the test filter 108 is started, it can be used to filter the debris in the test water tank 106. When the test filter 108 filters, since there will be some fine debris that cannot be filtered out and will flow out through the water outlet end of the test filter 108, therefore, by setting the debris collection device 112 to be connected to the water outlet end of the test filter 108 via the first waterway 114, the fine debris passing through the test filter 108 can be collected. The water filtered out of the fine debris finally returns to the test water tank 106 through the second waterway 116 at the outlet of the debris collection device 112. Specifically, a first valve 110 is arranged on the first waterway 114, and the flow or cut-off of the water flow from the test filter 108 to the debris collection device 112 can be realized by opening or closing the first valve 110.

[0041] In one embodiment, the test filter 108 can refer to a coarse filter, and its filter element is made of punched stainless steel plate, and the filter aperture is generally between 1.5 mm and 3 mm.

[0042] In one embodiment, the debris collection device 112 can adopt a micron-level bag filter, which can effectively collect the fine debris passing through the mesh holes of the test filter 108.

[0043] In one embodiment, for example, Figure 2 shown, the filter performance method provided by the embodiments of this application can also be applied to, for example,Figure 2 In the application performance evaluation system shown, among which, Figure 2 the performance evaluation system shown further includes a differential pressure sensor 202, a feeding box 204, a third valve 206, a pump 208, a pump 210, a fourth valve 212, and a flow meter 214.

[0044] Among which, the differential pressure sensor 202 can be used to measure the pressure difference inside and outside the test filter 108, so that the controller 102 can determine whether the test filter 108 reaches a stable state of adsorbing debris according to the pressure difference. The feeding box 204 can be used to hold the mixture of impurity debris and water to be fed into the test water tank 106. When feeding, the controller 102 can control to open the third valve 206 and the pump 208 downstream thereof to pump the mixture in the feeding box 204 into the test water tank. A pump 210, a fourth valve 212, and a flow meter 214 are further arranged on the first water path. Thus, the controller 102 can control the opening and closing of the pump 210, the fourth valve 212, and the flow meter 214 to control the flow condition of the water in the test water tank on the first water path 114.

[0045] In one embodiment, as Figure 3 shown, the filter performance method provided by the embodiment of the present application can also be applied to the application performance evaluation system shown in Figure 3 shown. Specifically, Figure 3 the performance evaluation system shown further includes a third water path 302 and a second valve 304 arranged on the third water path 302. Among which, the first water path 114 further includes a first water branch 306 and a second water branch 308, and the second water path 116 includes a third water branch 310 and a fourth water branch 312. Specifically, the water outlet end of the test filter 108 is further connected to one end of the second valve 304 on the third water path 302 via the first water branch 306. The other end of the second valve 304 is connected to the fourth water branch 312 and then connected to the test water tank via the fourth water branch 312. Thus, when the water level in the test water tank 106 reaches the preset water level, the controller 102 can open the second valve 304 and the fourth valve 212 on the first water branch 306 and close the first valve 110 and the third valve 206 on the second water branch 308 before purifying the first water path 114, the test water tank 106, and the second water path 116, so that the water flow can circulate in the first water branch 306, the fourth water branch 312, and the third water path 302 under the set flow conditions to achieve the effect of stable loop circulation.

[0046] In one embodiment, the controller 102 can be an electronic device independent of the performance evaluation system, or it can be an electronic device integrated with the performance evaluation system. The controller in the embodiment of the present application is independent of the performance evaluation system. Specifically, the controller 102 can adopt a control main board, and a CPU (Central Processing Unit) and an MCU (Micro Control Unit) can be set on the control main board.

[0047] In one embodiment, when the water level of the test water tank reaches a preset water level, the controller 102 controls the purification of the test water tank, the first water channel and the second water channel; if the purification of the test water tank, the first water channel and the second water channel is completed, the swing platform is controlled to be in a first working state, and a specified number of impurity fragments are triggered to be put into the test water tank, wherein the first working state is one of the start state and the close state; if the filter parameters of the test filter meet the first working parameter conditions, the first fragments in the fragment collection device are obtained, and the water change operation of the test water tank is triggered; when the water level of the test water tank reaches the preset water level again, the purification of the test water tank, the first water channel and the second water channel is controlled to be purified again; if the purification of the test water tank, the first water channel and the second water channel is completed again, the swing platform is controlled to be in a second working state, and a specified number of impurity fragments are triggered to be put into the test water tank, wherein the second working state is another of the start state and the close state; if the filter parameters of the test filter meet the second working parameter conditions, the second fragments in the fragment collection device are obtained; based on the first fragments and the second fragments, the performance of the test filter is evaluated.

[0048] In one embodiment, Figure 4 As shown, a filter performance evaluation method is provided, which is applied to Figure 1 The controller 102 in FIG. 1 is taken as an example to illustrate, including the following steps:

[0049] Step S402 : When the water level of the test water tank reaches a preset water level, the test water tank, the first water channel, and the second water channel are controlled to be purified.

[0050] The preset water level refers to the water level that the water in the test water tank 106 should reach. Generally, when setting the preset water level, it is necessary to consider that after the swing platform 104 is turned on, the test filter 108 is always submerged in the water in the test water tank 106. Purifying the first water channel 114 refers to eliminating any initial impurities that may be present in the first water channel 114 to avoid affecting the test results.

[0051] In one embodiment, when the controller 102 determines that the water in the test water tank 106 reaches the preset water level, it can control the second valve 304 to close and the first valve 110 to open. Thus, the debris collection device 112 can be used to purify the test water tank 106, the first waterway 114, and the second waterway 116, eliminating the influence of the initial impurities in the test water tank 106, the first waterway 114, and the second waterway 116 on the subsequent evaluation of the performance of the test filter 108.

[0052] Step S404, if the test water tank, the first waterway, and the second waterway are completed, control the swing table to be in the first working state, and trigger the feeding of a specified number of impurity debris into the test water tank, where the first working state is one of the start state or the closed state.

[0053] Among them, the first working state refers to the working state of the swing table 104. The swing table 104 can be in any one of the start state or the closed state. Therefore, after the test water tank 106, the first waterway 114, and the second waterway 116 are purified, the controller 102 can control the swing table 104 to be in the start state or control the swing table 104 to be in the closed state. The impurity debris can refer to the mixture of debris and water and can be placed in the feeding box 204.

[0054] Specifically, referring to Figure 2 As shown, the impurity debris can be placed in the feeding box 204. When the test water tank 106, the first waterway 114, and the second waterway 116 are purified, the controller 102 can control the swing table 104 to be in the first working state, and open the third valve 206 and the No. 2 pump 208 to put the impurity debris in the feeding box 204 into the test water tank 106. Of course, in some embodiments, the impurity debris can also be directly put into the test water tank 106 by manual, which is not limited here.

[0055] In one embodiment, after the test water tank 106, the first waterway 114, and the second waterway 116 are purified, the controller 102 controls the swing table 104 to be in the start state, and triggers the feeding box 204 to put the impurity debris into the test water tank 106.

[0056] Step S406, if the filter parameters of the test filter meet the first working parameter conditions, obtain the first debris in the debris collection device, and trigger the operation of changing the water in the test water tank.

[0057] Among them, the filter parameters may refer to the measured parameters related to the working time, working status, etc. of the test filter 108. The first working parameter condition refers to the conditions that the filter parameters should meet when the first fragments are obtained. The first fragments may refer to the small fragments collected in the debris collection device 112 when the swing table 104 is in the first working state and enter the debris collection device 112 through the test filter 108. For example, the first working parameter condition may refer to the pressure conditions, time conditions, etc. that the filter parameters should meet.

[0058] In one embodiment, when the controller 102 determines that the test filter 108 meets the first working parameter condition, the controller 102 can obtain the first fragment in the debris collection device 112. Furthermore, the performance evaluation system can also be provided with a drain pipe and a water injection pipe. The drain pipe can be used to drain the water in the test water tank 106, and the water injection pipe can be used to inject water into the test water tank 106. After the controller 102 obtains the first fragment, it can control the drain pipe and the water injection pipe to cooperate to complete the water change operation of the test water tank 106.

[0059] Step S408 : When the water level of the test water tank reaches the preset water level again, the test water tank, the first water channel and the second water channel are controlled to be purified again.

[0060] Among them, after the controller 102 controls to trigger the water change operation of the test water tank 106, when the water level of the test water tank 106 reaches the preset water level again, the controller 102 will once again control the purification of the first water channel 114 and the second water channel 116 of the test water tank 106. On the one hand, it can eliminate the initial impurities that may exist in the test water tank 106, the first water channel 114 and the second water channel 116. On the other hand, it can also ensure that before the swing platform 104 is controlled to be in the second working state, the objective conditions such as the test water tank 106, the first water channel 114 and the second water channel 116 remain the same as before the swing platform 104 is controlled to be in the first working state, thereby reducing the evaluation error of the subsequent test filter 108 performance.

[0061] In step S410, if the test water tank, the first water channel and the second water channel are purified again, the swing platform is controlled to be in the second working state, and a trigger is triggered to put a specified number of impurity fragments into the test water tank, wherein the second working state is another state of the start state or the shutdown state.

[0062] Among them, the second working state may include the other state of the start state or the shutdown state. The second working state is related to the first working state. Specifically, if the controller 102 controls the swing table 104 to be in the first working state and the first working state is the shutdown state, correspondingly, the second working state is the start state; if the controller 102 controls the swing table 104 to be in the first working state and the first working state is the start state, then the second working state is the shutdown state.

[0063] Among them, after the controller 102 controls the swing table 104 to be in the second working state, similarly, it will also trigger the feeding box 204 to drop the impurity fragments into the test water tank 106.

[0064] Step S412, if the filter parameters of the test filter meet the second working parameter conditions, then obtain the second fragments in the fragment collection device.

[0065] Among them, the second working parameter conditions refer to the conditions that the filter parameters should meet when obtaining the second fragments. The second fragments may refer to the fragments collected in the fragment collection device when the swing table 104 is in the second working state and enter the fragment collection device through the test filter 108. For example, the second working parameter conditions may also refer to the pressure conditions, time conditions, etc. that the filter parameters should meet.

[0066] Step S414, evaluate the performance of the test filter 108 based on the first fragments and the second fragments.

[0067] Among them, after the controller 102 obtains the first fragments and the second fragments, it can determine whether there is an impact on the performance of the test filter 108 when the swing table 104 is in the working state according to the first fragments and the second fragments.

[0068] In the above filter performance evaluation method, after the water level in the test water tank reaches the preset water level and the test water tank, the first water path, and the second water path are purified, the swing table is controlled to be in the first working state, where the first working state is one of the start state or the off state. After the swing table is in the first working state, if the filter parameters of the test filter meet the first working parameter conditions, the first debris in the debris collection device is obtained, and a water change operation for the test water tank is triggered. When the water level in the test water tank reaches the preset water level again, the test water tank, the first water path, and the second water path are controlled to be purified again. If the test water tank, the first water path, and the second water path are purified again, the swing table is controlled to be in the second working state, and a specified number of impurity debris are triggered to be put into the test water tank, where the second working state is the other state of the start state or the off state. If the filter parameters of the test filter meet the second working parameter conditions, the second debris in the debris collection device is obtained. Based on the first debris and the second debris, the performance of the test filter is evaluated. Thus, by keeping the initial state (water level, whether purified, etc.) of the test water tank consistent, the debris when the filter parameters of the test filter meet the corresponding working condition parameters in different working states of the swing table can be obtained, and the influence of the swing condition on the downstream effect of the filter can be evaluated.

[0069] In one embodiment, referring to Figure 3 As shown, the performance evaluation system further includes a third water path 302 and a second valve 304 provided on the third water path 302. Among them, the first water path 114 further includes a first water branch 306 and a second water branch 308, and the second water path 116 includes a third water branch 310 and a fourth water branch 312. Specifically, the water outlet end of the test filter 108 is further connected to one end of the second valve 304 on the third water path 302 via the first water branch 306, the other end of the second valve 304 is connected to the fourth water branch 312, and then connected to the test water tank via the fourth water branch 312. Thus, when the water level in the test water tank 106 reaches the preset water level, the controller 102 can open the second valve 304 and the fourth valve 212 on the first water branch 306 and close the first valve 110 and the third valve 206 on the second water branch 308 before controlling the purification of the first water path 114, the test water tank 106, and the second water path 116, so that the water flow can circulate in the first water branch 306, the fourth water branch 312, and the third water path 302 under the set flow conditions to achieve the effect of stable loop circulation.

[0070] Among them, when the water level in the test water tank 106 reaches the preset water level, the controller 102 can open the second valve and close the first valve before controlling the purification of the first water path, so that the first water path and the third water path can circulate under the set flow conditions to achieve the effect of stable loop circulation.

[0071] Specifically, before controlling the purification of the test water tank 106, the first waterway 114, and the second waterway 116, it further includes: controlling the opening of the second valve 304 on the third waterway 302, closing the first valve 110 on the second water branch 308, and controlling the water in the test water tank 106 to circulate in the first water branch 306, the third branch 304, and the fourth water branch 312 at a preset flow rate.

[0072] Among them, before the controller 102 controls the purification of the test water tank 106, the first waterway 114, and the second waterway 116, it will control the opening of the second valve 304, close the first valve 110, and control the water in the test water tank 106 to circulate in the first water branch 306, the third branch 304, and the fourth water branch 312 at a preset flow rate, thereby achieving the effect of stable loop circulation.

[0073] In one embodiment, the method for determining the preset flow rate includes: obtaining the surface area of the nuclear reactor filter and the surface area of the test filter of the test filter; determining the area reduction coefficient based on the quotient of the surface area of the nuclear reactor filter and the surface area of the test filter; and determining the preset flow rate based on the preset rated flow rate of the circulation pump and the area reduction coefficient.

[0074] Among them, the surface area of the nuclear reactor filter may refer to the surface area of the filter used in the actual nuclear reactor, the surface area of the test filter 108 refers to the surface area of the test filter 108 involved in the present application, the area reduction coefficient refers to the multiple difference between the surface area of the nuclear reactor filter and the surface area of the test filter 108, and the rated flow rate of the circulation pump may refer to the rated flow rate when the circulation pump sucks water from the water pool through the nuclear reactor filter in an actual nuclear reactor accident. Specifically, as shown in the following formula, it is the calculation formula for the preset flow rate:

[0075]

[0076]

[0077] Among them, k represents the area reduction coefficient, represents the surface area of the nuclear reactor filter, represents the surface area of the test filter 108, represents the preset flow rate, represents the rated flow rate of the circulation pump.

[0078] In the above embodiments, the controller 102 determines the area reduction coefficient by performing an equal-proportion operation on the surface area of the nuclear reactor and the surface area of the test filter 108, and then determines the preset flow rate based on the rated flow rate of the circulation pump and the area reduction coefficient, thereby enabling the combination of the actual water flow rate and the test water flow rate and improving the reliability of the test process.

[0079] In some embodiments, if the first working state is the starting state and the second working state is the closing state, the first working parameter condition is the test filter pressure difference condition, and the second working parameter condition is at least one of the first time condition and the test filter pressure difference condition. Among them, when the first working state is the starting state and the second working state is the closing state, it means that the controller 102 can first obtain the first debris under the swaying condition of the swaying table 104, and then obtain the second debris when the swaying table 104 stops swaying.

[0080] For example, in one embodiment, if the first working state is the starting state, the second working state is the closing state, the first working parameter condition is the test filter pressure difference condition, and the second working parameter condition is also the test filter pressure difference condition. Specifically, when the controller 102 determines whether to obtain the first debris, it can obtain the first pressure difference between the inside and outside of the test filter 108 detected by the differential pressure sensor 202. If the first pressure difference satisfies the preset pressure difference range, it indicates that the pressure difference condition is met, and then the controller 102 can obtain the first debris. When the controller 102 determines whether to obtain the second debris, it can obtain the second pressure difference between the inside and outside of the test filter 108 detected by the differential pressure sensor 202. If the second pressure difference satisfies the preset pressure difference range, it indicates that the pressure difference condition is met, and then the controller 102 can obtain the second debris.

[0081] For another example, in one embodiment, if the first working state is the starting state, the second working state is the closing state, the first working parameter condition is the test filter pressure difference condition, and the second working parameter condition is the first time condition. Among them, the first time condition is related to the duration required for the filtering parameters of the filter 108 to reach the filter pressure difference condition when the swaying table 104 operates in the starting state. Specifically, when the controller 102 determines whether to obtain the first debris, it can obtain the first pressure difference between the inside and outside of the test filter 108 detected by the differential pressure sensor 202. If the first pressure difference satisfies the preset pressure difference range, it indicates that the pressure difference condition is met, and then the controller 102 can obtain the first debris. At the same time, a time calculator is also set to determine the duration required for the first pressure difference between the inside and outside of the test filter 108 to satisfy the preset pressure difference range under the swaying condition, denoted as the first duration. When the controller 102 determines whether to obtain the second debris, it can also obtain the second debris when the duration of the swaying table 104 in the closing state reaches the first duration.

[0082] In the above embodiments, for the case where the controller 102 first controls the swing table 104 to be in the starting state and then controls the swing table 104 to be in the closed state, corresponding working parameter conditions are respectively set. Thus, when the conditions are met, the first fragment and the second fragment can be obtained respectively, which can increase the accuracy of subsequent evaluation calculations.

[0083] In some embodiments, if the first working state is the closed state and the second working state is the starting state, the first working parameter condition is the test filter pressure difference condition, and the second working parameter condition is at least one of the second time condition and the test filter pressure difference condition, and the first time condition is different from the second time condition. Wherein, when the first working state is the closed state and the second working state is the starting state, it means that the controller 102 can first obtain the first fragment when the swing table 104 stops working, and then obtain the second fragment when the swing table 104 is in the swinging condition.

[0084] For example, in one embodiment, if the first working state is the closed state and the second working state is the starting state, the first working parameter condition is the test filter pressure difference condition, and the second working parameter condition is also the test filter pressure difference condition. Specifically, when determining whether to obtain the first fragment, the controller 102 can obtain the first pressure difference between the inside and outside of the test filter 108 detected by the differential pressure sensor 202. If the first pressure difference meets the preset pressure difference range, it indicates that the pressure difference condition is met, and then the controller 102 can obtain the first fragment. When determining whether to obtain the second fragment, the controller 102 can obtain the second pressure difference between the inside and outside of the test filter 108 detected by the differential pressure sensor 202. If the second pressure difference meets the preset pressure difference range, it indicates that the pressure difference condition is met, and then the controller 102 can obtain the second fragment.

[0085] For another example, in one embodiment, if the first working state is the closed state and the second working state is the starting state, the first working parameter condition is the test filter pressure difference condition, and the second working parameter condition is the second time condition. Wherein, the second time condition is related to the duration required for the filtration parameter of the filter 108 to reach the filtration pressure difference condition when the swing table 104 runs in the closed state and the preset duration. Specifically, when determining whether to obtain the first fragment, the controller 102 can obtain the first pressure difference between the inside and outside of the test filter 108 detected by the differential pressure sensor 202. If the first pressure difference meets the preset pressure difference range, it indicates that the pressure difference condition is met, and then the controller 102 can obtain the first fragment. At the same time,

[0086] By setting a time calculator, determine the duration required when the first pressure difference between the inside and outside of the test filter 108 satisfies a preset pressure difference range while the swing table 104 is in the closed state, and record it as the second duration. When determining whether to obtain the second fragment, the controller 102 can also obtain the second fragment when the duration of the swing table 104 in the closed state reaches the second duration plus a preset duration.

[0087] It can be understood that when the swing table 104 is in the starting state, the time required for the pressure difference between the inside and outside of the test filter 108 to satisfy the pressure difference range will be longer than when the swing table 104 is in the closed state. If the swing table 104 operates for the second duration in the closed state, the pressure difference between the inside and outside of the test filter 108 can satisfy the pressure difference range. However, after the swing table 104 also operates for the second duration in the starting state, it is very likely that the pressure difference between the inside and outside of the test filter 108 cannot satisfy the pressure difference range. That is to say, the pressure between the inside and outside of the test filter 108 has not reached a stable state. If the second fragment is collected at this time, it is not conducive to the subsequent evaluation of the performance of the test filter. Therefore, in this embodiment, after the duration of the swing table 104 in the closed state reaches the second duration and then operates for a preset duration, the second fragment is obtained. In this way, it can be further ensured that the pressure between the inside and outside of the test filter 108 reaches a stable state at this time, which is beneficial to improving the accuracy of the evaluation. Of course, in some embodiments, the second fragment can also be obtained immediately when the duration of the swing table 104 in the closed state reaches the second duration, and no limitation is made here.

[0088] In addition, it should be noted that the preset duration can be obtained through a large number of experiments, or obtained according to the experience of the user. The preset duration can also be adjusted according to the actual situation, and no limitation is made here.

[0089] In one of the embodiments, based on the swinging fragments and the non-swinging fragments, evaluate the performance of the test filter under the swinging condition, including: respectively obtaining the first mass of the first fragment and the second mass of the second fragment; evaluating the performance of the test filter under the swinging condition according to the first mass and the second mass. Among them, for the first fragment and the second fragment, the controller can respectively determine the masses of the first fragment and the second fragment. Thus, the quality of the test filter under the swinging condition can be evaluated according to the first mass and the second mass.

[0090] In one embodiment, when the controller 102 evaluates the quality of the test filter 108 under the swaying condition, if the difference between the first mass of the first fragment and the second mass of the second fragment is within 3%, it can be considered that the swaying condition will not affect the downstream effect of the recirculation filter. Subsequently, when conducting the in-core heat transfer analysis, it is not necessary to consider the influence of the increased number of fragments caused by the swaying condition. If the difference between the first mass of the first fragment and the second mass of the second fragment exceeds 3%, it is considered that the swaying condition will increase the mass of the fragments entering the downstream through the recirculation filter. In subsequent analyses such as the in-core flow resistance, based on the onshore reactor analysis, it is necessary to consider the influence that the swaying condition will increase the mass of the fragments entering the downstream core through the recirculation filter.

[0091] In the above embodiment, the controller evaluates the quality of the swaying condition by mass, and can accurately complete the evaluation process.

[0092] In one embodiment, obtaining the first mass of the first fragment and the second mass of the second fragment respectively includes: controlling the drying and weighing of the filter bag in the fragment collection device to obtain the initial mass of the first fragment of the first fragment and the initial mass of the second fragment of the second fragment; determining the first mass based on the mass difference between the initial mass of the filter bag and the initial mass of the first fragment, and determining the second mass based on the mass difference between the initial mass of the filter bag and the initial mass of the second fragment.

[0093] Among them, when the controller 102 determines the first mass and the second mass, for the fragment collection device 112, by drying and weighing the filter bag in the fragment collection device, the initial mass of the filter bag before use can be obtained, as well as the initial mass of the first fragment of the first fragment and the initial mass of the second fragment after the filter bag is used. According to the mass difference between the initial mass of the filter bag and the initial mass of the first fragment, the first mass is determined, and according to the mass difference between the initial mass of the filter bag and the initial mass of the second fragment, the second mass is determined.

[0094] In the above embodiment, by using the initial mass of the filter bag before use to determine the first mass and the second mass, the subsequent evaluation accuracy can be improved to a certain extent.

[0095] In one embodiment, as Figure 5 shown, it is a schematic flow diagram of the filter performance evaluation method in a specific embodiment:

[0096] Among them, Figure 5 They are the specific implementation manners for obtaining the corresponding fragments when the swaying table 104 is in the starting state and when the swaying table 104 is in the closed state respectively.

[0097] When the swing table 104 is in the start state and the shutdown state, a specified number of fragments are weighed. Then, when the water filling circuit in the water tank (test water tank) reaches the specified flow rate, the fragments are put into the feeding box. After the swing table 104 is in the start state or the shutdown state, if the differential pressure sensor shows that the pressure difference inside and outside the filter is stable and the test stops, the fragments in different states of the swing table 104 collected by the fragment collection device can be obtained, the number of fragments collected by the fragment collection device can be calculated, and the influence of the swing condition on the downstream effect of the filter can be evaluated.

[0098] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are sequentially shown according to the indications of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps does not have a strict order limit, 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 moment, but can be executed at different moments. 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.

[0099] Based on the same inventive concept, the embodiments of the present application further provide a filter performance evaluation device for implementing the filter performance evaluation method described above. 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 filter performance evaluation device provided below can refer to the limitations on the filter performance evaluation method in the above text, and will not be repeated here.

[0100] In one embodiment, as Figure 6 shown, a filter performance evaluation device is provided, including: a purification module 602, a control module 604, a first fragment acquisition module 606, a second fragment acquisition module 608, and an evaluation module 610, where:

[0101] The purification module 602 is configured to control the purification of the test water tank, the first waterway, and the second waterway when the water level of the test water tank reaches the preset water level.

[0102] A control module 604, which is configured to, if the test water tank, the first water circuit, and the second water circuit are purified, control the swing table to be in a first working state and trigger the delivery of a specified number of impurity fragments into the test water tank, where the first working state is one of a start state or a shutdown state, and which is configured to, if the test water tank, the first water circuit, and the second water circuit are purified again, control the swing table to be in a second working state and trigger the delivery of a specified number of impurity fragments into the test water tank, where the second working state is the other of the start state or the shutdown state.

[0103] A first fragment acquisition module 606, which is configured to, if the filter parameters of the test filter meet the first working parameter conditions, acquire the first fragments in the fragment collection device and trigger an operation of changing the water in the test water tank.

[0104] A second fragment acquisition module 608, which is configured to, if the filter parameters of the test filter meet the second working parameter conditions, acquire the second fragments in the fragment collection device.

[0105] An evaluation module 610, which is configured to evaluate the performance of the test filter based on the first fragments and the second fragments.

[0106] In one embodiment, the device further includes: a second control module;

[0107] The second control module is configured to control the opening of a second valve on a third water circuit, close a first valve on a second water branch, and control the water in the test water tank to circulate in the first water branch, the third branch, and the fourth water branch at a preset flow rate.

[0108] In one embodiment, the second control module is further configured to acquire the surface area of the nuclear reactor filter and the surface area of the test filter of the test filter; determine an area reduction coefficient based on the quotient of the surface area of the nuclear reactor filter and the surface area of the test filter; and determine the preset flow rate based on the rated flow rate of the preset circulation pump and the area reduction coefficient.

[0109] In one embodiment, the evaluation module is configured to respectively acquire a first mass of the first fragments and a second mass of the second fragments; and evaluate the performance of the test filter under a swing condition according to the first mass and the second mass.

[0110] In one embodiment, the evaluation module is configured to control the drying and weighing of the filter bag in the fragment collection device to acquire an initial mass of the swing fragments of the swing fragments and an initial mass of the non-swing fragments of the non-swing fragments; determine the first mass based on the mass difference between the initial mass of the filter bag and the initial mass of the swing fragments, and determine the second mass based on the mass difference between the initial mass of the filter bag and the initial mass of the non-swing fragments.

[0111] Each module in the above filter performance evaluation device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above modules can be embedded in the controller in the electronic device in hardware form or be independent of it, or can be stored in the memory of the electronic device in software form, so as to facilitate the controller to call and execute the operations corresponding to each of the above modules.

[0112] In one embodiment, an electronic device is provided. The electronic device can be a terminal, and its internal structural diagram can be as Figure 7 shown. The electronic device includes a controller, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the controller, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, the controller of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the electronic device is used to exchange information between the controller and external devices. The communication interface of the electronic device is used to communicate with external terminals in a wired or wireless manner. The wireless manner can be implemented through WIFI, a mobile cellular network, NFC (Near Field Communication), or other technologies. The computer program, when executed by the controller, implements a filter performance evaluation method. The display unit of the electronic device is used to form a visually visible picture, which can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the electronic device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad provided on the housing of the electronic device, or an external keyboard, touchpad, or mouse, etc.

[0113] Those skilled in the art can understand that Figure 7 the structure shown in

[0114] is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the electronic device to which the solution of this application is applied. The specific electronic device may include more or fewer components than those shown in the figure, or combine some components, or have different component arrangements.

[0115] In one embodiment, an electronic device is provided, including a memory and a controller. A computer program is stored in the memory, and when the controller executes the computer program, the steps of the above filter performance evaluation method are implemented.

[0116] In one embodiment, a computer program product is provided, including a computer program which, when executed by a controller, implements the steps of the above-mentioned filter performance evaluation method.

[0117] 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 this application can include at least one of non-volatile and volatile memories. Non-volatile memories can include read-only memory (ROM), magnetic tapes, floppy disks, flash memories, optical memories, high-density embedded non-volatile memories, resistive random access memories (ReRAM), magnetoresistive random access memories (MRAM), ferroelectric random access memories (FRAM), phase change memories (PCM), graphene memories, etc. Volatile memories can include random access memory (RAM) or external cache memories, 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 this 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 controllers involved in the embodiments provided in this application can be general controllers, central controllers, graphics controllers, digital signal controllers, programmable logics, data processing logics based on quantum computing, etc., without limitation.

[0118] 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 to be within the scope described in this specification.

[0119] The above-described embodiments merely represent several implementation manners of the present application. The description thereof 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 fall within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A method for evaluating the performance of a filter, characterized in that, A controller for use in a performance evaluation system, the performance evaluation system further comprising a swing platform, a debris collection device, and a test water tank disposed on the swing platform, the test water tank being provided with a test filter, the water outlet of the test filter being connected to the inlet of the debris collection device via a first valve on a first waterway, and the outlet of the debris collection device being connected to the test water tank via a second waterway; The method comprises: When the water level of the test water tank reaches a preset water level, controlling the purification of the test water tank, the first water channel and the second water channel; If the test water tank, the first water channel, and the second water channel are purified, the swing platform is controlled to be in a first working state, and a trigger is triggered to drop a specified number of foreign debris into the test water tank, wherein the first working state is one of an on state and a off state; If the filter parameter of the test filter satisfies a first operating parameter condition, obtaining first debris in the debris collection device and triggering a water change operation for the test water tank; When the water level of the test water tank reaches the preset water level again, controlling the test water tank, the first water channel and the second water channel to be purified again; If the test water tank, the first water channel, and the second water channel are purified again, the swing platform is controlled to be in a second working state, and a trigger is triggered to drop the specified number of foreign debris into the test water tank, wherein the second working state is another state of the start state or the shut down state; If the filter parameters of the test filter meet the second operating parameter conditions, obtaining second debris in the debris collection device; The performance of the test filter is evaluated based on the first fragment and the second fragment.

2. The method according to claim 1, wherein The system further includes a third water circuit, wherein the first water circuit includes a first water branch and a second water branch, and the second water circuit includes a third water branch and a fourth water branch; the water outlet of the test filter is further connected to one end of a second valve on the third water circuit via the first water branch, and the other end of the second valve is connected to the fourth water branch, and is connected to the test water tank via the fourth water branch; Before the control of purifying the test water tank, the first water channel, and the second water channel, the method further includes: Control to open the second valve on the third water branch, close the first valve on the second water branch, and control the water in the test water tank to circulate in the first water branch, the third water branch and the fourth water branch according to a preset flow rate.

3. The method according to claim 2, wherein The method for determining the preset flow rate includes: obtaining a nuclear reactor filter surface area and a test filter surface area of the test filter; determining an area reduction factor based on a quotient of a surface area of the nuclear reactor filter and a surface area of the test filter; The preset flow rate is determined based on a preset rated flow rate of the circulation pump and the area reduction coefficient.

4. The method according to claim 1, characterized in that, If the first working state is the starting state and the second working state is the closing state, the first working parameter condition is the differential pressure condition of the test filter, and the second working parameter condition is at least one of the first time condition and the differential pressure condition of the test filter.

5. The method according to claim 1, characterized in that, If the first working state is the closing state and the second working state is the starting state, the first working parameter condition is the differential pressure condition of the test filter, and the second working parameter condition is at least one of the second time condition and the differential pressure condition of the test filter, and the first time condition is different from the second time condition.

6. The method according to claim 1, wherein Evaluating the performance of the test filter based on the first fragment and the second fragment includes: Obtaining the first mass of the first fragment and the second mass of the second fragment respectively; Evaluating the performance of the test filter under the swaying condition according to the first mass and the second mass.

7. The method according to claim 6, wherein The obtaining the first mass of the first fragment and the second mass of the second fragment respectively includes: Controlling the drying and weighing of the filter bag in the fragment collection device to obtain the initial mass of the first fragment of the first fragment and the initial mass of the second fragment of the second fragment; Determining the first mass based on the mass difference between the initial mass of the filter bag and the initial mass of the first fragment, and determining the second mass based on the mass difference between the initial mass of the filter bag and the initial mass of the second fragment.

8. A filter performance evaluation device, characterized in that, Applied to the controller in the performance evaluation system, the performance evaluation system further includes a swaying table, a fragment collection device, and a test water tank arranged on the swaying table. A test filter is arranged inside the test water tank. The water outlet end of the test filter is connected to the inlet of the fragment collection device through a first valve on the first water path, and the outlet of the fragment collection device is connected to the test water tank through a second water path; the device includes: A purification module for controlling the purification of the test water tank, the first water path, and the second water path when the water level of the test water tank reaches a preset water level, and for controlling the purification of the test water tank, the first water path, and the second water path again when the water level of the test water tank reaches the preset water level again; A control module for controlling the swaying table to be in a first working state and triggering the throwing of a specified number of impurity fragments into the test water tank if the purification of the test water tank, the first water path, and the second water path is completed, where the first working state is one of the starting state or the closing state, and for controlling the swaying table to be in a second working state and triggering the throwing of a specified number of impurity fragments into the test water tank if the purification of the test water tank, the first water path, and the second water path is completed again, where the second working state is the other state of the starting state or the closing state; A first fragment obtaining module for obtaining the first fragment in the fragment collection device and triggering a water change operation for the test water tank if the filter parameters of the test filter meet the first working parameter condition; A second fragment acquisition module, configured to acquire a second fragment in the fragment collection device if a filter parameter of the test filter meets a second operating parameter condition; An evaluation module, configured to evaluate the performance of the test filter based on the first fragment and the second fragment.

9. A filter performance evaluation system, comprising a controller, a swing table, a debris collection device, a test water tank arranged on the swing table, a first waterway and a second waterway. A test filter is arranged inside the test water tank. The water outlet end of the test filter is connected to the inlet of the debris collection device via a first valve on the first waterway. The outlet of the debris collection device is connected to the test water tank through the second waterway. A memory stores a computer program, characterized in that, When the controller executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

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