A nuclear grade resin comprehensive application performance testing device

Abstract

In order to solve the technical problem that the traditional nuclear-grade resin research is difficult to accurately grasp the performance of nuclear-grade resin under different physical fields due to the single factor, the embodiment of the present invention provides a nuclear-grade resin comprehensive application performance test device, including: a closed-loop detection circuit; the closed-loop detection circuit is provided with: a water quality control unit for controlling water quality, the water outlet of the water quality control unit is connected to the temperature control pipe of the temperature control unit; a temperature control unit for controlling the temperature of the water coming from the water outlet pipe, the temperature control pipe of the temperature control unit is connected to the resin radiation test unit; and a resin radiation test unit, the water inlet of the resin radiation test unit is connected to the water outlet pipe of the temperature control unit; the water outlet of the resin radiation test unit is connected to the water inlet pipe of the water quality control unit. The embodiment of the present invention realizes the comprehensive performance test of multiple physical fields such as water quality, temperature and radiation of nuclear-grade resin.

Description

Technical Field

[0001] The invention relates to a nuclear-grade resin comprehensive application performance testing device. Background Art

[0002] As a commonly used purification material, nuclear-grade resin has strict technical requirements for performance indicators such as exchange capacity, particle uniformity, compressive strength, transformation rate, and metal impurity content.

[0003] The molecular structure, physical and chemical properties, exchange capacity, service life and other indicators of nuclear-grade resins under operating conditions are usually affected by multiple factors. Systematic testing of the comprehensive application performance of nuclear-grade resins under simulated nuclear-related conditions (including velocity field, temperature field, pressure field, irradiation field, oxidation environment, and water quality conditions) can be closer to the actual operation of nuclear-grade resins in the first circuit. Through multi-factor superposition tests, the data obtained have stronger guiding significance for the performance improvement of nuclear-grade resins and the final engineering application test.

[0004] In traditional technology, for example, microwave digestion-atomic absorption method can be used to analyze and study the lithium transformation rate of nuclear-grade resin, the boron saturation and release characteristics of nuclear-grade resin, the irradiation performance of nuclear-grade cation exchange resin, the heating dehydration characteristics of nuclear-grade ion exchange resin and other performance indicators.

[0005] However, most of the research on nuclear-grade resins is in the stage of theoretical simulation, and the simulation test conditions are relatively ideal. Or even if the research is conducted in a physical laboratory, it is only a study of a single performance parameter, and the research factors are single, such as referring to existing technologies (study on the irradiation performance of nuclear-grade cation exchange resins). This makes the test results inaccurate and it is difficult to accurately grasp the performance of nuclear-grade resins under different physical fields, resulting in incomplete research.

[0006] The environment in which nuclear-grade resins are located in the reactor is usually under a variety of complex conditions such as high temperature, high humidity, high pressure, high radiation, and high speed. Different working environments lead to different purification performance of nuclear-grade resins, or the performance of nuclear-grade resins will change under various working conditions. Its exchange performance, service life, structural changes and other indicators will be different under different operating conditions, making it difficult for technicians to accurately grasp the purification performance of nuclear-grade resins, which often leads to poor adsorption purification effects, incomplete radioactive adsorption, or a large amount of nuclear-grade resin is added, which can easily cause blockage of the primary circuit or waste of resources. Summary of the invention

[0007] In order to solve the technical problem that the traditional nuclear-grade resin research has a single factor, which makes it difficult to accurately grasp the performance of nuclear-grade resin under different physical fields, an embodiment of the present invention provides a nuclear-grade resin comprehensive application performance testing device.

[0008] The embodiment of the present invention is achieved through the following technical solutions:

[0009] The embodiment of the present invention provides a nuclear-grade resin comprehensive application performance testing device, comprising:

[0010] A closed-loop detection primary circuit for simulating a reactor primary circuit, wherein the closed-loop detection primary circuit comprises:

[0011] A water quality control unit is used to control water quality, and a water outlet of the water quality control unit is connected to a temperature control pipeline of the temperature control unit;

[0012] A temperature control unit, used to control the temperature of water coming from the water outlet pipe, wherein the temperature control pipe of the temperature control unit is connected to the resin radiation test unit; and

[0013] A resin radiation test unit is used for radiating nuclear-grade resin to test the purification performance of the nuclear-grade resin under different physical fields. The water inlet of the resin radiation test unit is connected to the water outlet pipe of the temperature control unit;

[0014] The water outlet of the resin radiation test unit is communicated with the water inlet pipeline of the water quality control unit.

[0015] Furthermore, the water quality control unit comprises:

[0016] A water quality control system, wherein a water pipe of the water quality control system is connected to the liquid storage tank, and the water quality control system is used to monitor the water quality of the water in the liquid storage tank and control a drainage pump and a water replenishment pump of the liquid storage tank so that the water quality in the liquid storage tank meets the test requirements; and

[0017] The liquid storage tank is used to store water and is connected to the temperature control pipe of the temperature control unit through a water outlet pipe.

[0018] Furthermore, the temperature control unit comprises:

[0019] A heating furnace, used for heating water in a temperature control pipe of a temperature control unit;

[0020] a thermometer for monitoring the temperature of water in a temperature control pipe of a temperature control unit; and

[0021] The heat preservation belt is arranged on the outer side of the temperature control pipe of the temperature control unit to keep the temperature of the water in the temperature control pipe stable.

[0022] Furthermore, the resin radiation testing unit comprises:

[0023] An ion exchange column filled with nuclear grade resin, wherein the water inlet of the ion exchange column is used to communicate with a temperature control pipeline of a temperature control unit;

[0024] a radiation source for irradiating the nuclear grade resin in the ion exchange column; and

[0025] Radiation dose detection instrument, used to monitor radiation dose.

[0026] Furthermore, the testing device also includes:

[0027] The pressure control unit is used to communicate with the liquid storage tank to control the pressure in the liquid storage tank.

[0028] Furthermore, the testing device also includes:

[0029] A pre-pump filter module, used to be connected to the water outlet of the liquid storage tank; and

[0030] A booster module, the water inlet of the booster module is used to be connected to the water outlet of the pre-pump filter module, and the water outlet of the booster module is connected to the temperature control pipeline of the temperature control unit.

[0031] Furthermore, the testing device also includes:

[0032] The online monitoring system is connected to the ion exchange column and is used for online monitoring of parameters in a closed-loop detection circuit.

[0033] Furthermore, the testing device also includes:

[0034] The sampling system is connected to the ion exchange column and is used to sample the nuclear grade resin.

[0035] Furthermore, the water outlet of the ion exchange column is connected to the liquid storage tank through the back pressure module and the return water measurement module in sequence.

[0036] Furthermore, the liquid storage tank is also connected to:

[0037] Gas regulation module to control the oxygen content in the tank.

[0038] Compared with the prior art, the embodiments of the present invention have the following advantages and beneficial effects:

[0039] A nuclear-grade resin comprehensive application performance testing device in an embodiment of the present invention realizes comprehensive performance testing of multiple physical fields such as water quality, temperature and radiation of nuclear-grade resin by closed-loop detection of a water quality control unit, a temperature control unit and a resin radiation testing unit in a first circuit, breaking through the single physical field simulation method in traditional technology and avoiding the defect that the traditional nuclear-grade resin research has a single factor, which makes it difficult to accurately grasp the performance of nuclear-grade resin under different physical fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. 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.

[0041] Figure 1 This is a schematic diagram of the principle structure of the nuclear-grade resin comprehensive application performance testing device.

[0042] Figure 2 Schematic diagram of the principle structure of the pressure control unit.

[0043] Figure 3 This is a schematic diagram of the principle structure of the pre-pump filter module.

[0044] Figure 4 This is a schematic diagram of the principle structure of the boost module.

[0045] Marks and corresponding parts names in the attached drawings:

[0046] 1-pressure control unit, 2-water quality control system, 3-filtration module, 4-gas regulation module, 5-pre-pump filtration module, 6-boosting module, 7-peristaltic pump adjustment device, 8-resin radiation test unit, 9-back pressure module, 10-buffer container, 11-recovery measurement module, 12-sampling system, 13-online monitoring system, 14-temperature control unit, 15-liquid storage tank drainage or sampling port, 16-inlet thermocouple, 17-second pressure sensor, 18-sampling cooler, 19-third pressure sensor, 20-return water cooler, 21-liquid storage tank, 22-water supply pump, 101-exhaust port, 102-vent pipe, 103 -first safety valve, 104-first pressure sensor, 105-first pressure gauge, 106-first solenoid valve, 107-backup pressure valve, 108-first needle valve, 109-first ball valve, 501-water inlet to liquid storage tank, 502-second ball valve, 503-filter, 504-third ball valve, 505-fourth ball valve, 506-export to boost module; 601-water inlet to pre-pump filter module, 602-water outlet to temperature control unit, 603-pulsation damper, 604-high-pressure pump, 605-negative pressure sensor, 1401-heating furnace, 1402-insulation belt, 1201-pressure reducing valve, 1202-second needle valve. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0048] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to one of ordinary skill in the art that these specific details are not necessarily employed to practice the present invention. In other embodiments, in order to avoid obscuring the present invention, well-known structures, circuits, materials, or methods are not specifically described.

[0049] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0050] In the description of the present invention, the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “up”, “down”, “vertical”, “horizontal”, “high”, “low”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0051] Example

[0052] In order to solve the technical problem that the traditional nuclear-grade resin research has a single factor that makes it difficult to accurately grasp the performance of nuclear-grade resin under different physical fields, the embodiment of the present invention provides a nuclear-grade resin comprehensive application performance testing device, referring to Figure 1-Figure 4 As shown, it includes: a closed-loop detection loop for simulating a reactor loop, wherein the closed-loop detection loop is provided with: a water quality control unit for controlling water quality, wherein the water outlet of the water quality control unit is connected to a temperature control pipeline of a temperature control unit; a temperature control unit for controlling the temperature of water coming from a water outlet pipeline, wherein the temperature control pipeline of the temperature control unit is connected to a resin radiation test unit; and a resin radiation test unit for irradiating nuclear-grade resin to test the purification performance of the nuclear-grade resin under different physical fields, wherein the water inlet of the resin radiation test unit is connected to a water outlet pipeline of the temperature control unit; and the water outlet of the resin radiation test unit is connected to a water inlet pipeline of the water quality control unit.

[0053] Therefore, the testing device of the embodiment of the present invention realizes the comprehensive performance testing of multiple physical fields such as water quality, temperature and radiation of nuclear-grade resin through a closed detection loop composed of components such as a water quality control unit, a temperature control unit and a resin radiation testing unit, breaking through the single physical field simulation method in traditional technology and avoiding the defect that the traditional nuclear-grade resin research has a single factor, which makes it difficult to accurately grasp the performance of nuclear-grade resin under different physical fields.

[0054] refer to Figure 1-4 As shown, the nuclear-grade resin comprehensive application performance test device includes a water quality control unit, a temperature control unit 14 and a resin radiation test unit 8; wherein the water quality control unit includes: a water quality control system 2, a water pipe of the water quality control system is connected to a liquid storage tank 21, and the water quality control system is used to monitor the water quality of the water in the liquid storage tank and control the drainage pump of the liquid storage tank and the water replenishment pump 22 of the liquid storage tank so that the water quality in the liquid storage tank meets the test requirements; and a liquid storage tank, which is used to store water and is connected to the temperature control pipe of the temperature control unit through a water outlet pipe. The liquid storage tank is also connected to: a gas regulating module, which is used to control the oxygen content in the liquid storage tank. Optionally, the water quality control system includes a water quality controller, which can adjust and control the dissolved oxygen, pH, conductivity, dissolved matter, ion concentration, flow rate and / or flow parameters of the test water quality.

[0055] Specifically, the water quality control system 2 is connected to the waste liquid collection port and the reserved sampling port through two ball valves respectively, and the water quality control system is connected to the liquid storage tank through the filter module 3, the circulation pump and the ball valve; the peristaltic pump adjustment device 7 is connected above the liquid storage tank, and a liquid level meter and a foamer are arranged in the liquid storage tank. The liquid storage tank is connected to the deoxygenation interface and the oxygen control interface through the gas adjustment module 4. The water inlet is connected to the liquid storage tank through the water supply pump, the one-way valve and the liquid storage tank in turn; the liquid storage tank is connected to the liquid storage tank drainage or sampling port 15 through the solenoid valve.

[0056] Optionally, the water quality control system includes a water quality controller, which can adjust and control various parameters of the test water quality, such as dissolved oxygen, pH, conductivity, dissolution, ion concentration, flow rate and / or flow rate, and evaluate the separation effect of nuclear grade resin on specific ions by regulating the changes in water conductivity and pH; evaluate the kinetic performance of nuclear grade resin by changing flow rate and flow rate; analyze the degree of decomposition of nuclear grade resin by adjusting the content of dissolution; and simulate the actual working conditions by changing the ion concentration in the water quality environment. Stable isotopes of Cs and Sr are used to replace the corresponding radioactive ions, and a water quality liquid with a concentration of 5 to 6 times or higher is configured and stored in a liquid storage tank, which is connected to the loop through pipes and pumps. The present invention does not impose any restrictions on the type of water quality controller, as long as it can achieve the change of water quality parameters in the nuclear reactor, including but not limited to multiple water quality controllers or the integration of multiple water quality controllers.

[0057] The test device also includes a pressure control unit 1, which is connected to the liquid storage tank to control the pressure in the liquid storage tank. The pressure control system controls the water pressure of the loop, explores the performance changes of nuclear grade resin under different water pressure conditions, and simulates the pressure in different reactor loops.

[0058] Specifically, the liquid storage tank of the water quality control unit is also connected to a pressure control unit, which controls the water pressure in the liquid storage tank through the pressure control unit, thereby controlling the pressure, flow rate or flow rate of the water out of the liquid storage tank; the pressure control unit 1 includes an exhaust port 101, a vent pipe 102, a first safety valve 103, a first pressure sensor 104, a first pressure gauge 105, a first solenoid valve 106, a backup pressure valve 107, a first needle valve 108 and a first ball valve 109, and the connection relationship is referenced Figure 3 shown.

[0059] The testing device also includes: a pre-pump filter module 5, which is used to connect to the water outlet of the liquid storage tank; and a boost module 6, the water inlet of the boost module is used to connect to the water outlet of the pre-pump filter module, and the water outlet of the boost module is connected to the temperature control pipeline of the temperature control unit.

[0060] refer to Figure 1 As shown, the water outlet of the liquid storage tank of the water quality control unit passes through the pre-pump filter module and the boost module in turn and enters the temperature control unit. Among them, the pre-pump filter module includes a water inlet 501 connected to the liquid storage tank, a second ball valve 502, a filter 503, a third ball valve 504, a fourth ball valve 505 and an outlet 506 to the boost module; the connection relationship of the various components of the pre-pump filter module is shown in Reference 3. The boost module includes a water inlet 601 connected to the pre-pump filter module, a water outlet 602 to the temperature control unit, a pulsation damper 603, a high-pressure pump 604 and a negative pressure sensor 605. The connection relationship of the various components of the boost module is shown in Reference 3. Figure 4 shown.

[0061] The water outlet 602 of the boost module to the temperature control unit is communicated with the temperature control pipeline of the temperature control unit.

[0062] The temperature control unit includes: a heating furnace for heating water in the temperature control pipe of the temperature control unit; a thermometer for monitoring the temperature of the water in the temperature control pipe of the temperature control unit; and a heat preservation belt, which is arranged outside the temperature control pipe of the temperature control unit to keep the temperature of the water in the temperature control pipe stable. By adjusting the temperature range of the control loop through the temperature control system, the physical and chemical properties of nuclear grade resin at different temperatures can be explored.

[0063] refer to Figure 1As shown, the temperature control unit 14 includes a heating furnace 1401 and an insulation belt 1402. The water outlet 602 of the boost module to the temperature control unit enters the heating furnace for heating through a temperature control pipe. An insulation belt is arranged on the temperature control pipe connected to the water outlet of the heating furnace to ensure the stability of the temperature of the water outlet from the temperature control unit.

[0064] The water outlet of the temperature control unit is connected to a resin radiation test unit 8; the resin radiation test unit comprises: an ion exchange column 802 filled with nuclear grade resin, the water inlet of the ion exchange column being connected to the temperature control pipe of the temperature control unit; and a radiation source 801 for irradiating the nuclear grade resin in the ion exchange column. The resin radiation test unit is also provided with an irradiation dose detection instrument for monitoring the irradiation dose.

[0065] Optionally, there are two ion exchange columns, and the water outlet of the temperature control unit is connected to the two ion exchange columns through two branch pipes; each branch pipe is provided with an inlet thermocouple 16 and a second pressure sensor 17; the radiation range of the radiation source covers the two ion exchange columns, so that the radiation source can be controlled to generate different irradiation under different conditions to test the nuclear-grade resin in the ion exchange column.

[0066] Using 192Ir as the radiation source, the radiation intensity of the irradiation field is suitable for the radiation intensity of different reactors; the nuclear-grade resin is loaded into the ion exchange column, and the ion exchange column is placed between the radiation source and the radiation dose detector to truly simulate the radiation state of the nuclear-grade resin in the reactor loop. The ion exchange column adopts a dual-column mode, which can simulate and compare different materials at the same time, such as domestic and imported materials. The radiation dose detection instrument is used to accurately detect the radiation dose of the material in real time.

[0067] Pressure detectors are set at the upper and lower ends of the ion exchange column to detect the bed pressure drop process and the total organic carbon content of the effluent. The entire radiation system is shielded by shielding components to prevent radiation contamination; the radiation source can be used to explore the physical and chemical properties under different radiation doses, and the radiation source can be replaced according to different requirements.

[0068] Optionally, the water outlet of the ion exchange column is connected to the liquid storage tank via a back pressure module and a return water measurement module in sequence.

[0069] refer to Figure 1 As shown, the water outlet of the ion exchange column is connected to the return water cooler 20, the back pressure module 9, the buffer container 10 and the return water measurement module 11 in sequence through a pipeline provided with a third pressure sensor 19, and the return water measurement module is connected to the top of the liquid storage tank; thereby, the outlet water of the ion exchange column returns to the liquid storage tank for recycling.

[0070] The ion exchange column is also connected to an online monitoring system 13 and a sampling system 12, so that the purification capacity and other parameters of the ion exchange column can be monitored in a timely manner, thereby ensuring the timeliness and accuracy of the test. Figure 1 As shown, the online monitoring system is connected to the ion exchange column for online monitoring of parameters in a closed-loop detection circuit. The ion exchange column is connected to the online monitoring system 13 through the sampling cooler 18 and the fifth ball valve in turn. The sampling system is connected to the ion exchange column for sampling of nuclear-grade resin. The ion exchange column is connected to the sampling system through the sampling cooler. The sampling system includes a pressure reducing valve 1201 and a second needle valve 1202; the ion exchange column is connected through the sampling cooler, the pressure reducing valve and the second needle valve in turn. The sampling system also includes an automatic sampler, which is connected to the ion exchange column, and the liquid to be tested is sampled by adjusting the pressure and controlling the electromagnetic valve to flow out of the ion exchange column, thereby realizing the detection of the TOC of the dissolved substance.

[0071] The online monitoring system includes, but is not limited to, conductivity meters, pH meters, flow meters, flow meters, pressure meters, and ion concentration meters, which monitor the physical and chemical environmental change parameters in the loop in real time online to control different experimental conditions and simulate the real loop water environment. The detection of ions includes cations such as lithium, sodium, calcium, magnesium, and iron, as well as anions in various loops such as fluoride ions, chloride ions, nitrate ions, and sulfate ions. The online detection system is connected to the ion exchange column to monitor the environmental parameters in the ion exchange column in real time, such as using dynamic light scattering technology to monitor various parameters such as the sphericity and particle size of resin material particles online.

[0072] The multiple physical fields that can be realized by the test device of the embodiment of the present invention include but are not limited to various physical fields formed by velocity field, temperature field, pressure field, oxidation environment, water quality conditions and irradiation field, and the radiation intensity of the irradiation field is suitable for the irradiation intensity of different reactors.

[0073] The common ball valve, filter, pump, and pressure gauge in the circuit of the embodiment of the present invention belong to the prior art in this field, and those skilled in the art can select them according to different technical requirements.

[0074] In summary, the embodiment of the present invention forms a closed-loop detection loop by truly simulating the reactor loop, and realizes the performance test of nuclear-grade resin under the comprehensive action of multiple physical fields, thereby avoiding the defect that the traditional nuclear-grade resin research is difficult to accurately grasp the performance of nuclear-grade resin under different physical fields due to the single factor.

[0075] The embodiment of the present invention builds the experimental system based on the technical requirements of the nuclear industry on how to effectively cool the primary loop of a nuclear reactor; the experimental system is broken through the single physical field simulation method in the prior art for the organic combination of different physical fields and radiation fields, especially the test system in the prior art that does not organically combine multiple physical fields with radiation fields is solved. The test device can be used to simulate the physical and chemical properties of nuclear-grade resins under real working conditions, so that the working environment of the nuclear-grade resins is closer to the water environment of the primary loop of the reactor, so as to explore the performance of the materials, and guide the optimization and improvement of the process according to the performance changes of the materials, so that the purification ability of the nuclear-grade resins is stronger, while improving the performance, avoiding the waste of resources, having tangible economic benefits, and being able to achieve industrialization.

[0076] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nuclear grade resin comprehensive application performance testing device, characterized in that: include: A closed-loop detection primary circuit for simulating a reactor primary circuit, wherein the closed-loop detection primary circuit comprises: A water quality control unit is used to control water quality and can adjust and control dissolved oxygen, pH, conductivity, dissolved matter, ion concentration, flow rate and / or flow rate parameters of the test water quality. The water outlet of the water quality control unit is connected to the temperature control pipe of the temperature control unit; A temperature control unit, used to control the temperature of water coming from the water outlet pipe, wherein the temperature control pipe of the temperature control unit is connected to the resin radiation test unit; A resin radiation test unit is used for irradiating nuclear-grade resin to test the purification performance of the nuclear-grade resin under different physical fields, wherein the water inlet of the resin radiation test unit is connected to the water outlet pipeline of the temperature control unit, and the water outlet of the resin radiation test unit is connected to the water inlet pipeline of the water quality control unit; the resin radiation test unit comprises: an ion exchange column filled with nuclear-grade resin, the water inlet of the ion exchange column is used to be connected to the temperature control pipeline of the temperature control unit; a radiation source is used to irradiate the nuclear-grade resin in the ion exchange column; and an irradiation dose detection instrument is used to monitor the irradiation dose; A pre-pump filter module, used to connect with the water outlet of the liquid storage tank; A booster module, the water inlet of the booster module is used to be connected to the water outlet of the pre-pump filter module, and the water outlet of the booster module is connected to the temperature control pipeline of the temperature control unit; An online monitoring system, connected to the ion exchange column, is used to perform online monitoring of parameters in the closed-loop detection primary circuit; The sampling system is connected to the ion exchange column and is used to sample the nuclear grade resin.

2. The nuclear grade resin comprehensive application performance testing device as claimed in claim 1, characterized in that: The water quality control unit comprises: A water quality control system, wherein a water pipe of the water quality control system is connected to the liquid storage tank, and the water quality control system is used to monitor the water quality of the water in the liquid storage tank and control a drainage pump and a water replenishment pump of the liquid storage tank so that the water quality in the liquid storage tank meets the test requirements; and The liquid storage tank is used for storing water and is connected with the temperature control pipe of the temperature control unit through the water outlet pipe.

3. The nuclear grade resin comprehensive application performance testing device as claimed in claim 1, characterized in that: The temperature control unit comprises: A heating furnace, used for heating water in a temperature control pipe of a temperature control unit; a thermometer for monitoring the temperature of water in a temperature control pipe of a temperature control unit; and The heat preservation belt is arranged on the outer side of the temperature control pipe of the temperature control unit to keep the temperature of the water in the temperature control pipe stable.

4. The nuclear grade resin comprehensive application performance testing device as claimed in claim 2, characterized in that: The testing device further comprises: a pressure control unit, which is used to communicate with the liquid storage tank to control the pressure in the liquid storage tank.

5. The nuclear grade resin comprehensive application performance testing device as claimed in claim 2, characterized in that: The water outlet of the ion exchange column is connected to the liquid storage tank through the back pressure module and the return water measurement module in sequence.

6. The nuclear grade resin comprehensive application performance testing device as claimed in claim 2, characterized in that: The liquid storage tank is also connected to a gas regulating module for controlling the oxygen content in the liquid storage tank.

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