Method and device for analyzing and filtering multi-channel suspended matter sample of nuclear power plant

Abstract

The invention discloses a method and a device for analyzing and filtering a multi-channel suspended matter sample of a nuclear power plant. The method comprises the following steps: S1, weighing a filter membrane in a filter to obtain G1; s2, extracting a suspended matter sample; s3, placing the suspended matter sample on a weighing sensor; s4, the suspended matter sample with the volume H passes through the filter, water is filtered out, and a filter membrane with suspended matter particles is obtained; s5, removing water from a filter membrane in the filter, and weighing to obtain G2; and S6, performing data comparison to obtain the content F of the suspended matter particles in the suspended matter sample. Installation and testing are convenient, operation is simpler and more convenient, sample loss in the testing process can be reduced through mutual cooperation of the central control module, the weighing sensor and the three-way valve, the analysis precision is improved, the filtering efficiency is high, and the result is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear power plant testing, and in particular to a method and a device for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant. Background Art

[0002] During the power operation of a nuclear power plant, suspended matter sample analysis is required for the coolant of the secondary circuit and related auxiliary systems to evaluate the operating status of the system and the corrosion of the equipment.

[0003] In the process of suspended matter sample processing in some existing technologies, sample filtration requires the use of filter presses and air compressors, which occupy a large area and are complex and cumbersome to operate; the sample filtration process relies entirely on manual control, which requires high operating skills of personnel. Once a mistake is made, it may cause equipment damage or sample filtration failure; the quality of filtered samples relies on manual control, and the quality of filtered samples cannot be accurately controlled; when sample particles clog the filter membrane and the sample in the filter canister cannot be completely filtered, the sample in the filter canister needs to be poured back into the sampling bucket for re-weighing. In this process, the sample loss is large, which affects the analysis accuracy, and the filtration efficiency is low, resulting in inaccurate results. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for manufacturing a plug connector.

[0005] The technical solution adopted by the present invention to solve the technical problem is: constructing a multi-channel suspended matter sample analysis and filtering device for a nuclear power plant, comprising the following steps;

[0006] S1: Weigh the filter membrane in the filter to obtain G1;

[0007] S2: Extract suspended matter sample;

[0008] S3: placing the suspended matter sample on the weighing sensor;

[0009] S4: passing H volume of the suspended matter sample through the filter to filter out water and obtain a filter membrane with suspended matter particles;

[0010] S5: removing the water from the filter membrane in the filter and weighing it to obtain G2;

[0011] S6: Perform data comparison to obtain the content F of suspended matter particles in the suspended matter sample.

[0012] Furthermore, in step S2, the coolant of the secondary circuit and auxiliary system of the nuclear power plant is extracted by a sampling component to obtain a suspended matter sample.

[0013] Further, in step S4, the specific operation steps are as follows:

[0014] S41: placing the liquid inlet of the filter tube into the suspended matter sample in the sampling component;

[0015] S42: Controlling the three-way valve to rotate through the central control module, so that the sampling component is connected to the filter through the filter tube;

[0016] S43: starting the booster pump by controlling the central control module, and the booster pump draws the suspended matter sample through the filter membrane inside the filter;

[0017] S44: When the suspended matter sample in the sampling component is reduced to a set weight, or the filter membrane inside the filter is blocked, the central control module controls the booster pump to stop running, thereby obtaining a wet filter membrane with suspended matter particles.

[0018] Further, in step S5, the specific operation steps are as follows:

[0019] S51: controlling the three-way valve to rotate through the central control module, so that the filter tube is disconnected from the liquid inlet and connected to the external gas;

[0020] S52: starting the booster pump by controlling the central control module, and the booster pump draws external gas through the wet filter membrane inside the filter;

[0021] S53: External air removes moisture from the wet filter membrane and the surface of the suspended particles, removes the filter membrane and dries it, and then weighs the filter membrane with the suspended particles to obtain G2.

[0022] Furthermore, in step S6, the obtained G1, G2 and H are substituted into the formula (G2-G1)÷H=F to obtain the content F of suspended particles in the suspended matter sample.

[0023] In addition, the present invention also provides a multi-channel suspended matter sample analysis and filtering device for a nuclear power plant, comprising: a filter tube, a sampling component, a filter, a three-way valve, a booster pump, a weighing sensor and a central control module, wherein one end of the filter tube is provided with a liquid inlet, and the other end of the filter tube is provided with a liquid outlet;

[0024] The sampling component is arranged at the liquid inlet, one end of the filter is connected to the filter tube, and the other end of the filter is connected to the liquid outlet. The three-way valve is installed on the filter tube between the booster pump and the sampling component, and is used to absorb external gas or suspended matter samples to reach the filter. The weighing sensor is arranged below the sampling component to weigh the suspended matter samples inside the sampling component. The pressure gauge, the three-way valve, the booster pump and the weighing sensor are all electrically connected to the central control module.

[0025] Furthermore, the sampling component is a sampling barrel, and the sampling barrel is made of transparent material.

[0026] Furthermore, the sampling barrel is provided with a scale.

[0027] Furthermore, a funnel is provided at the opening of the sampling barrel.

[0028] Furthermore, the multi-channel suspended matter sample automatic filtering device for a nuclear power plant also includes a pressure gauge arranged on the filtering tube, and the pressure gauge is electrically connected to the central control module.

[0029] The implementation of the present invention has the following beneficial effects:

[0030] The central control module controls the rotation of the three-way valve to disconnect the filter tube from the liquid inlet and connect it to the outside air, then start the booster pump, use the outside air to blow dry the wet filter membrane and the particles of the suspended matter sample, and weigh them to obtain G2. Then, data comparison and analysis are performed to obtain the content F of the suspended matter particles in the suspended matter sample. Among them, the outside air must be kept clean and free of dust, thereby improving the accuracy of obtaining the content F of the suspended matter particles. Therefore, the suspended matter samples in the sampling component can be used multiple times during the entire operation, reducing the number of times the test personnel collect suspended matter samples, saving test time, and improving accuracy and test efficiency. The entire device is small and does not take up too much area, is easy to install and test, and is simpler and more convenient to operate. The cooperation between the central control module, the weighing sensor and the three-way valve can reduce sample loss during the test, improve analysis accuracy, high filtration efficiency, and more accurate results. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] In the attached figure:

[0033] Figure 1 It is a flow chart of a method for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant provided by an embodiment of the present invention;

[0034] Figure 2 is a flowchart of step S4 provided in an embodiment of the present invention;

[0035] Figure 3 is a flowchart of step S5 provided in an embodiment of the present invention;

[0036] Figure 4The present invention is a schematic structural diagram of a multi-channel suspended matter sample analysis and filtering device for a nuclear power plant provided in an embodiment of the present invention.

[0037] Description of symbols in the figure

[0038] Filter tube 1, liquid inlet 2, liquid outlet 3, sampling component 4, filter 5, three-way valve 6, booster pump 7, weighing sensor 8, central control module 9, funnel 10, pressure gauge 11. DETAILED DESCRIPTION

[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0040] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0042] See also Figures 1 to 4 A method for analyzing and filtering a multi-channel suspended matter sample in a nuclear power plant in a first embodiment of the present invention specifically comprises the following steps:

[0043] S1: weigh the filter membrane in filter 5 to obtain G1;

[0044] S2: Extract suspended matter sample;

[0045] S3: placing the suspended matter sample on the weighing sensor 8;

[0046] S4: passing H volume of the suspended matter sample through the filter 5 to filter out water and obtain a filter membrane with suspended matter particles;

[0047] S5: removing the water from the filter membrane in the filter 5 and weighing it to obtain G2;

[0048] S6: Perform data comparison to obtain the content F of suspended matter particles in the suspended matter sample.

[0049] The present application includes steps S1: weighing the filter membrane in the filter 5 to obtain G1; S2: extracting a suspended matter sample; S3: placing the suspended matter sample on a weighing sensor 8; S4: allowing H volume of the suspended matter sample to pass through the filter 5 to filter out water and obtain a filter membrane with suspended matter particles; S5: S5: removing water from the filter membrane in the filter 5 and weighing it to obtain G2; S6: performing data comparison to obtain the content F of suspended matter particles in the suspended matter sample.The test personnel first remove the filter membrane in the filter 5 and weigh it to obtain G1. During the weighing process, avoid touching the filter membrane with your hands. The test personnel can hold the filter membrane with tweezers for weighing to prevent impurities from sticking to the filter membrane and affecting the filtering effect and the accuracy of the test value. After recording G1, reinstall the filter membrane in the filter 5, and then place the empty sampling component 4 on the weighing sensor 8 to record A1. After that, the test personnel can use the sampling component 4 to extract samples with suspended matter, which can be convenient for loading and avoid pollution of the surrounding environment by suspended matter samples. It is more hygienic and environmentally friendly and reduces damage to the human body. Place the sampling component 4 containing the suspended matter sample on the weighing sensor 8 to obtain The total weight of the sampling component 4 and the suspended matter sample is A2. The test personnel use the formula A1-A2=A3 to obtain the actual weight or volume of the obtained suspended matter sample as A3, or make the weighing sensor 8 peel the sampling component 4 so that the weighing sensor 8 directly displays the weight of A3, and insert the liquid inlet 2 of the filter tube 1 into the suspended matter sample of the sampling component 4. Then, the central control module 9 controls the three-way valve 6 to rotate, and the sampling component 4 and the filter 5 are connected through the filter tube 1. Then, the booster pump 7 is started to make the booster pump 7 transport the suspended matter sample to the filter membrane of the filter 5. The particles of the suspended matter sample will remain on the filter membrane, and the water will pass through the filter membrane and be discharged. Observe the value A4 displayed on the weighing sensor 8. The desired weight or volume of the suspended matter sample is A3-A4=H. The value A4 displayed on the weighing sensor 8 is monitored and recorded in real time by the central control module 9. Then, the value is substituted into A3-A4=H to obtain the weight or volume of the suspended matter sample particles passing through the filter membrane as H, thereby obtaining a wet filter membrane with suspended matter sample particles. Then, the central control module 9 controls the three-way valve 6 to rotate, disconnecting the filter tube 1 from the liquid inlet 2 and connecting it to the outside air. Then, the booster pump 7 is started, and the wet filter membrane and the suspended matter sample particles are blown dry with the outside air to obtain G2, and then the data is compared. The content F of suspended particles in the suspended sample is obtained by analysis, wherein the outside air must be kept clean and dust-free, thereby improving the accuracy of obtaining the content F of suspended particles, and then the suspended sample in the sampling component 4 can be used multiple times during the entire operation, reducing the number of times the test personnel collect suspended samples, saving test time, and improving accuracy and test efficiency. The entire device is small and does not take up too much area, is easy to install and test, and is simpler and more convenient to operate. The cooperation between the central control module 9, the weighing sensor 8 and the three-way valve 6 can reduce sample loss during the test, improve analysis accuracy, high filtration efficiency, and more accurate results.

[0050] See also Figures 1 to 4 In some embodiments, in step S2, the coolant of the secondary circuit and auxiliary system of the nuclear power plant is extracted by the sampling component 4 to obtain a suspended matter sample.

[0051] The present application extracts the coolant of the secondary circuit and auxiliary system of the nuclear power plant through the sampling component 4 to obtain a suspended matter sample. The content F of the obtained suspended matter particles can be used to more accurately evaluate the operating status of the system and the corrosion of the equipment, and then timely maintenance and replacement can be carried out, thereby improving the safety factor, ensuring the safety of the lives of people around, and avoiding the loss of the surrounding environment and objects.

[0052] See also Figures 1 to 4 , in some embodiments, in step S4, the specific operation steps are as follows;

[0053] S41: placing the liquid inlet 2 of the filter tube 1 into the suspended matter sample in the sampling component 4;

[0054] S42: The three-way valve 6 is controlled to rotate by the central control module 9, so that the sampling component 4 is connected to the filter 5 through the filter tube 1;

[0055] S43: The booster pump 7 is started by the central control module 9, and the booster pump 7 extracts the suspended matter sample through the filter membrane inside the filter 5;

[0056] S44: When the suspended matter sample in the sampling component 4 is reduced to a set weight, or the filter membrane inside the filter 5 is blocked, the central control module 9 controls the booster pump 7 to stop running, thereby obtaining a wet filter membrane with suspended matter particles.

[0057] The present application includes steps S41: placing the liquid inlet 2 of the filter tube 1 into the suspended matter sample in the sampling component 4; S42: controlling the rotation of the three-way valve 6 through the central control module 9, and connecting the sampling component 4 with the filter 5 through the filter tube 1; S43: controlling the booster pump 7 to start through the central control module 9, and the booster pump 7 will extract the suspended matter sample through the filter membrane inside the filter 5; S44: when the suspended matter sample in the sampling component 4 is reduced to a set weight, or the filter membrane inside the filter 5 is blocked, the central control module 9 controls the booster pump 7 to stop running, and obtains a moist filter membrane with suspended matter particles. The weight change on the weighing sensor 8 can be detected and set by the central control module 9. When the weight lost on the weighing sensor 8 reaches the value set by the central control module 9, the central control module 9 will first cut off the power to the booster pump 7, so that the suspended matter sample in the sampling component 4 will no longer enter the filter tube 1. After that, the liquid inlet 2 is taken out from the sampling component 4, and the booster pump 7 is started again by the central control module 9, so that the residual suspended matter sample in the filter tube 1 continues to be transported to the filter membrane of the filter 5 through the booster pump 7, thereby making the weight or volume of the suspended matter sample lost on the weighing sensor 8 closer to the weight or volume of the suspended matter sample reaching the filter membrane of the filter 5, thereby improving the accuracy of the suspended matter particle content F finally extracted.

[0058] When the filter membrane on the filter 5 is blocked, no water will flow out of the liquid outlet 3, and the value of the pressure gauge 11 will increase rapidly. At this time, the state of the pressure gauge 11 will be fed back to the central control module 9, so that the central control module 9 controls the boost pump 7 to stop running, thereby protecting the entire equipment, improving safety, and protecting the surrounding environment and personnel. The liquid inlet 2 of the filter tube 1 needs to be suspended in the suspended sample in the sampling component 4 to avoid contact with the sampling component 4, which affects the weighing and monitoring of the sampling component 4 by the weighing sensor 8, thereby improving the safety of the entire process and improving the accuracy of the suspended particle content F finally extracted.

[0059] See also Figures 1 to 4 , in some embodiments, in step S5, the specific operation steps are as follows;

[0060] S51: The three-way valve 6 is controlled to rotate by the central control module 9, so that the filter tube 1 is disconnected from the liquid inlet 2 and connected to the external gas;

[0061] S52: The central control module 9 controls the booster pump 7 to start, and the booster pump 7 draws external gas through the wet filter membrane inside the filter 5;

[0062] S53: External air removes moisture from the wet filter membrane and the surface of the suspended particles, removes the filter membrane and dries it, and then weighs the filter membrane with the suspended particles to obtain G2.

[0063] The present application comprises steps S51: the central control module 9 controls the three-way valve 6 to rotate, so that the filter tube 1 is disconnected from the liquid inlet 2 and connected to the external gas; S52: the central control module 9 controls the booster pump 7 to start, and the booster pump 7 draws the external gas through the wet filter membrane inside the filter 5; S53: the external gas removes the moisture on the surface of the wet filter membrane and the suspended particles, removes the filter membrane for drying, and weighs the filter membrane with the suspended particles to obtain G2. After obtaining the desired suspended sample, the central control module 9 controls the three-way valve 6 to rotate, so that the filter tube 1 is disconnected from the liquid inlet 2 and connected to the external gas; S52: the central control module 9 controls the booster pump 7 to start, and the booster pump 7 draws the external gas through the wet filter membrane inside the filter 5; S53: the external gas removes the moisture on the surface of the wet filter membrane and the suspended particles, and after removing the filter membrane for drying, the filter membrane with the suspended particles is weighed to obtain G2. After obtaining the desired suspended sample, the central control module 9 controls the three-way valve 6 to rotate, so that the filter tube 1 is disconnected from the liquid inlet 2 and connected to the external gas; It is disconnected from the liquid inlet 2 and connected to the external air. The external air is then drawn through the wet filter membrane inside the filter 5 by the booster pump 7. The moisture on the surface of the wet filter membrane and the suspended particles is blown away by the external air. The operator removes the filter membrane from the inside of the filter 5 and dries the filter membrane. The moisture inside the filter membrane is removed during the drying process. The dried suspended particles and the filter membrane are then weighed to obtain G2. The whole process is more automated, and the operator does not need to make manual adjustments, thereby reducing labor intensity and improving the accuracy of the suspended particle content F finally extracted.

[0064] Among them, when the filter membrane on the filter 5 is blocked, the existing suspended matter sample passing through the filter membrane of the filter 5 can be recorded, and H can be obtained in the same way. Then, the filter membrane of the filter 5 is removed, and another layer of filter membrane is laid on it to clamp the suspended matter particles therein between the two layers of filter membranes. Then, it is reinstalled on the filter 5, and the three-way valve 6 can be controlled by the central control module 9 to rotate to a position connected to the air. Then, the booster pump 7 is started to draw air from the booster pump 7 to blow the suspended matter particles between the two filter membranes back and forth. When the booster pump 7 draws air from the outside and then discharges it from the liquid outlet 3, the suspended matter particles will be blown onto the bottom filter membrane. When the booster pump 7 draws air from the liquid outlet 3 and then discharges it from the end of the three-way valve 6 connected to the outside, the suspended particles will be blown onto the top filter membrane, but the suspended particles will always be sandwiched between the two filter membranes. The total weight G2 of the top filter membrane, the bottom filter membrane and the suspended particles in the middle is weighed together, and then the total weight G1 of the clean top filter membrane and the bottom filter membrane is subtracted to obtain the weight of the suspended particles, thereby improving the drying efficiency of the suspended particles and the filter membrane, and preventing the suspended particles from always clogging the bottom filter membrane, thereby improving the safety during drying and the accuracy of the suspended particle content F finally extracted.

[0065] See also Figures 1 to 4 In some embodiments, in step S6, the obtained G1, G2 and H are substituted into the formula (G2-G1)÷H=F to obtain the content F of suspended particles in the suspended sample.

[0066] The present application obtains the content F of suspended particles in the suspended matter sample by substituting the obtained values ​​of G1, G2 and H into the formula (G2-G1)÷H=F of the central control module 9, thereby improving the accuracy of the suspended matter particle content F finally extracted, and can better perform suspended matter sample analysis on the coolant of the secondary circuit and related auxiliary systems to evaluate the operating status of the system and the corrosion of the equipment, thereby improving safety, protecting the lives of surrounding personnel, and being able to timely maintain the secondary circuit and related auxiliary systems, extend their service life, and save maintenance costs.

[0067] See also Figure 3 and Figure 4The present invention also provides a multi-channel suspended matter sample automatic analysis and filtering device for a nuclear power plant, comprising: a filter tube 1, a sampling component 4, a filter 5, a three-way valve 6, a booster pump 7, a weighing sensor 8 and a central control module 9, wherein a liquid inlet 2 is arranged at one end of the filter tube 1, and a liquid outlet 3 is arranged at the other end of the filter tube 1; the sampling component 4 is arranged at the liquid inlet 2, one end of the filter 5 is connected to the filter tube 1, and the other end of the filter 5 is connected to the liquid outlet 3, the three-way valve 6 is installed on the filter tube 1 between the booster pump 7 and the sampling component 4, and is used to absorb external gas or suspended matter samples to reach the filter 5, the weighing sensor 8 is arranged below the sampling component 4, and weighs the suspended matter samples inside the sampling component 4, and the pressure gauge 11, the three-way valve 6, the booster pump 7 and the weighing sensor 8 are all electrically connected to the central control module 9.

[0068] Among them, the central control module 9 is used to detect and control the value change on the weighing sensor 8, and the weight of the sampling component 4 detected by the weighing sensor 8 is fed back to the central control module 9. When the value on the weighing sensor 8 drops to the value set on the central control module 9, the central control module 9 will control the booster pump 7 to stop running, thereby improving the accuracy of the extracted suspended particle content F, and can also protect the filter 5 and the filter tube 1. When the booster pump 7 stops, the three-way valve 6 can be controlled to rotate through the central control module 9, which further improves safety, reduces waste of suspended samples, and thus reduces labor intensity and protects the surrounding environment.

[0069] In the present application, a liquid inlet 2 is provided at one end of the filter tube 1, and a liquid outlet 3 is provided at the other end of the filter tube 1; a sampling component 4 is arranged at the liquid inlet 2, one end of the filter 5 is connected to the filter tube 1, and the other end of the filter 5 is connected to the liquid outlet 3, a three-way valve 6 is installed on the filter tube 1 between the booster pump 7 and the sampling component 4, and is used to absorb external gas or suspended matter samples to reach the filter 5, a weighing sensor 8 is arranged below the sampling component 4, and the suspended matter samples inside the sampling component 4 are weighed, and the pressure gauge 11, the three-way valve 6, the booster pump 7 and the weighing sensor 8 are all electrically connected to the central control module 9. When the particles in the suspended matter sample are to be analyzed, the liquid inlet 2 of the filter tube 1 is inserted into the suspended matter sample of the sampling component 4, and then the three-way valve 6 is controlled to rotate by the central control module 9, so that the sampling component 4 and the filter 5 are connected through the filter tube 1, and then the booster pump 7 is started to make the booster pump 7 transport the suspended matter sample to the filter membrane of the filter 5, and the particles of the suspended matter sample will remain on the filter membrane, and the water will pass through the filter membrane and be discharged. By observing the weighing sensor 8, when the desired weight or volume of the suspended matter sample is reached, a wet filter membrane with suspended matter sample particles is obtained, and then the three-way valve 6 is controlled to rotate by the central control module 9 to disconnect the filter tube 1 from the liquid inlet 2 and connect with the outside air, and then the booster pump 7 is started, and the wet filter membrane and the particles of the suspended matter sample are blown dry by the outside air to weigh and obtain G2, and then the data comparison analysis is performed to obtain the content F of the suspended matter particles in the suspended matter sample, and then the content F of the suspended matter particles in the suspended matter sample obtained is more accurate, the operation is more convenient, and the labor intensity is reduced.

[0070] The filter 5 is a detachable structure, which enables the test personnel to easily remove the filter membrane from the filter 5 for weighing, thereby reducing labor intensity.

[0071] See also Figure 3 and Figure 4 In some embodiments, the sampling component 4 is a sampling barrel, and the sampling barrel is made of transparent material.

[0072] In the present application, the sampling component 4 is in the form of a sampling barrel, which is more convenient for test personnel to extract suspended matter samples, and the cost is lower. The handle on the sampling barrel is convenient for test personnel to move the sampling barrel, which is more labor-saving and improves the efficiency of the test. A large number of suspended matter samples can be taken out at one time, and the content F of suspended matter particles can be tested in batches, so that the test value is more accurate. The sampling component 4 can also be a beaker, which can more intuitively see the state of the suspended matter sample, improve the accuracy of extracting the suspended matter sample, and reduce the error in the test.

[0073] The present application adopts a sampling barrel made of a transparent material. The sampling barrel made of the transparent material can more intuitively see the state of the suspended sample. During the test, it can be observed whether the suspended particles in the suspended sample are precipitated to affect the test data. After precipitation occurs, the test personnel can stir the suspended sample or replace the suspended sample in time. It is also convenient for the test personnel to observe the remaining amount of the suspended sample in the sampling barrel, avoiding the idling of the booster pump 7 and affecting the service life of the entire device. The content F of the suspended particles obtained is more accurate, reducing the error in the test.

[0074] See also Figure 3 and Figure 4 In some embodiments, a scale is provided on the sampling barrel.

[0075] The present application provides a scale on the sampling barrel, and the sampling barrel with a scale can make it easier for test personnel to take samples, so that test personnel can roughly know how much suspended matter sample they need to take during the sampling process, thereby avoiding waste of suspended matter samples. The scale set on the sampling barrel can also make test personnel more intuitively see the volume of the suspended matter sample flowing out of the sampling barrel, making it easier for test personnel to analyze the amount of suspended matter samples, thereby improving the accurate value of the content F of suspended matter particles, serving as a reminder for test personnel and reducing labor intensity.

[0076] See also Figure 3 and Figure 4 In some embodiments, a funnel 10 is provided at the opening of the sampling barrel.

[0077] The present application provides a funnel 10 at the opening of the sampling barrel. The funnel 10 can be plugged into the sampling barrel or fixedly installed at the opening of the sampling barrel. The fixedly installed funnel 10 can facilitate the test personnel to extract the suspended matter sample when extracting the suspended matter sample, reduce the labor intensity, and make the suspended matter sample enter the sampling barrel more smoothly, thereby improving the extraction efficiency. Through the funnel 10, the test personnel can more easily insert the liquid inlet 2 into the suspended matter sample in the sampling component 4, thereby improving the efficiency of obtaining the suspended matter particle content F.

[0078] The plug-in installed funnel 10 is more convenient to carry and replace. When the funnel 10 is damaged, it can be replaced in time, thus reducing the maintenance cost.

[0079] See also Figure 3 and Figure 4 In some embodiments, the multi-channel suspended matter sample automatic filtering device for a nuclear power plant further includes a pressure gauge 11 disposed on the filter tube 1 , and the pressure gauge 11 is electrically connected to the central control module 9 .

[0080] The present application monitors the clogging of the filter membrane on the filter 5 by setting a pressure gauge 11 on the filter tube 1. The pressure gauge 11 is located on the filter tube 1 between the filter 5 and the three-way valve 6. When the value of the pressure gauge 11 rises rapidly, it indicates that the filter membrane is clogged. At this time, the value change of the pressure gauge 11 will be fed back to the central control module 9, so that the central control module 9 controls the boost pump 7 to stop running, thereby protecting the filter tube 1 and the filter 5, improving safety, and ensuring the safety of surrounding personnel and the environment.

[0081] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the scope covered by the claims of the present invention.

Claims

1. A method for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant, characterized in that: The specific steps include: S1: Weigh the filter membrane in the filter (5) to obtain G1; S2: Extract suspended matter sample; S3: placing the suspended matter sample on the weighing sensor (8); S4: passing H volume of the suspended matter sample through the filter (5) to filter out water and obtain a filter membrane with suspended matter particles; S5: removing the water from the filter membrane in the filter (5) and weighing it to obtain G2; S6: Perform data comparison to obtain the content F of suspended matter particles in the suspended matter sample.

2. The method for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant according to claim 1, characterized in that: In the step S2, the coolant of the secondary circuit and auxiliary system of the nuclear power plant is extracted by the sampling component (4) to obtain a suspended matter sample.

3. The method for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant according to claim 2, characterized in that: In step S4, the specific operation steps are as follows: S41: placing the liquid inlet (2) of the filter tube (1) into the suspended matter sample in the sampling component (4); S42: Controlling the rotation of the three-way valve (6) through the central control module (9) to connect the sampling component (4) with the filter (5) through the filter tube (1); S43: The booster pump (7) is started by controlling the central control module (9), and the booster pump (7) extracts the suspended matter sample through the filter membrane inside the filter (5); S44: When the suspended matter sample in the sampling component (4) is reduced to a set weight, or the filter membrane inside the filter (5) is blocked, the central control module (9) controls the booster pump (7) to stop running, thereby obtaining a wet filter membrane with suspended matter particles.

4. The method for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant according to claim 3, characterized in that: In step S5, the specific operation steps are as follows: S51: controlling the three-way valve (6) to rotate through the central control module (9) so that the filter tube (1) is disconnected from the liquid inlet (2) and connected to the external gas; S52: The booster pump (7) is started by controlling the central control module (9), and the booster pump (7) draws external gas through the wet filter membrane inside the filter (5); S53: External air removes moisture from the wet filter membrane and the surface of the suspended particles, removes the filter membrane and dries it, and then weighs the filter membrane with the suspended particles to obtain G2.

5. The method for analyzing and filtering multi-channel suspended matter samples in a nuclear power plant according to claim 4, characterized in that: In the step S6, the obtained G1, G2 and H are substituted into the formula (G2-G1)÷H=F to obtain the content F of suspended particles in the suspended sample.

6. A multi-channel suspended matter sample analysis and filtering device for a nuclear power plant, characterized in that: include: A filter tube (1), a sampling component (4), a filter (5), a three-way valve (6), a booster pump (7), a weighing sensor (8) and a central control module (9), wherein one end of the filter tube (1) is provided with a liquid inlet (2), and the other end of the filter tube (1) is provided with a liquid outlet (3); The sampling component (4) is arranged at the liquid inlet (2); one end of the filter (5) is connected to the filter tube (1); the other end of the filter (5) is connected to the liquid outlet (3); the three-way valve (6) is installed on the filter tube (1) between the booster pump (7) and the sampling component (4) and is used to absorb external gas or suspended matter samples to reach the filter (5); the weighing sensor (8) is arranged below the sampling component (4) and weighs the suspended matter samples inside the sampling component (4); the three-way valve (6), the booster pump (7) and the weighing sensor (8) are all electrically connected to the central control module (9).

7. The multi-channel suspended matter sample analysis and filtering device for a nuclear power plant according to claim 6, characterized in that: The sampling component (4) is a sampling barrel, and the sampling barrel is made of a transparent material.

8. The multi-channel suspended matter sample analysis and filtering device for a nuclear power plant according to claim 7, characterized in that: The sampling barrel is provided with a scale.

9. The multi-channel suspended matter sample analysis and filtering device for a nuclear power plant according to claim 7, characterized in that: A funnel (10) is provided at the opening of the sampling barrel.

10. The multi-channel suspended matter sample analysis and filtering device for a nuclear power plant according to claim 6, characterized in that: The nuclear power plant multi-channel suspended matter sample automatic filtering device further comprises a pressure gauge (11) arranged on the filtering tube (1), and the pressure gauge (11) is electrically connected to the central control module (9).

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