Tritium removal system and tritium removal method

Abstract

An embodiment of the present application discloses a tritium removal system and a tritium removal method. The tritium removal system includes a tritium removal unit, an input unit, a regeneration unit, an output unit, and a venting unit. In the process of using the tritium removal system provided by the embodiment of the present application, helium gas containing tritiated water can enter the tritium removal unit through the input unit. After the tritium removal unit dries and adsorbs the tritiated water in the helium gas through a drying tower, the helium gas is then discharged into the helium gas circuit through the output unit. The tritium removal unit of the tritium removal system provided by the embodiment of the present application includes a plurality of tritium removal components arranged in parallel. Through the setting of a first control valve and a second control valve, each drying tower can work independently, and the molecular sieve desiccant in the drying tower is heated and regenerated through the regeneration unit, which has the characteristics of high tritium removal efficiency, large gas processing capacity, and long continuous operation time.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of in-pile irradiation technology of nuclear fuel, and particularly to a tritium removal system and a tritium removal method. Background Art

[0002] On a research reactor, a helium loop of a transient in-pile irradiation test system of nuclear fuel can be used to quickly and uniformly change the irradiation power of nuclear fuel. The rapid power transient change is very important for exploring the integrity and safety of fuel elements. To ensure the purity of helium in the irradiation test system loop, reduce the diffusion of tritiated water generated during the operation of the helium loop, prevent the release of radioactive tritium into the environment, and reduce the absorbed dose of operating personnel, it is necessary to remove tritium from the helium loop. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, a first aspect of the present invention provides a tritium removal system.

[0005] A second aspect of the present invention provides a tritium removal method.

[0006] In view of this, according to a first aspect of the embodiments of the present application, a tritium removal system is proposed, including:

[0007] A tritium removal unit;

[0008] An input unit, the input unit being connected to the input end of the tritium removal unit;

[0009] A regeneration unit, the regeneration unit being connected to the input end of the tritium removal unit;

[0010] An output unit, the output unit being connected to the output end of the tritium removal unit;

[0011] An evacuation unit, the evacuation unit being connected to the output end of the tritium removal unit;

[0012] Wherein, the tritium removal unit includes a plurality of tritium removal components arranged in parallel, and each tritium removal component includes a drying tower, a first control valve and a second control valve. The first control valve is arranged at the input end of the drying tower, and the second control valve is arranged at the output end of the drying tower.

[0013] In a feasible implementation manner, the input unit includes:

[0014] An input pipeline, the input pipeline being connected to the input end of the tritium removal unit;

[0015] A pre-filter, the pre-filter being arranged on the input pipeline;

[0016] A third control valve, which is arranged at the input end of the input pipeline;

[0017] A first pressure detection component, which is connected to the input pipeline.

[0018] In a feasible implementation manner, the regeneration unit includes:

[0019] A regeneration pipeline, which communicates with the input end of the tritium removal unit;

[0020] A heater, which is arranged on the regeneration pipeline;

[0021] A fourth control valve, which is arranged at the input end of the regeneration pipeline;

[0022] A first temperature sensor, which is connected to the heater;

[0023] A second temperature sensor, which is connected to the regeneration pipeline and is located at the output end of the heater.

[0024] In a feasible implementation manner, it further includes: an experimental simulation unit, and the experimental simulation unit includes:

[0025] A regeneration medium supply component, a tritium removal simulation experiment component, a regulating pipeline and an output pipeline. The regeneration medium supply component and the tritium removal simulation experiment component are in parallel, the regulating pipeline and the output pipeline are in parallel, the regulating pipeline communicates with the regeneration medium supply component and the tritium removal simulation experiment component, and the output pipeline communicates with the regeneration medium supply component and the tritium removal simulation experiment component.

[0026] In a feasible implementation manner, the regeneration medium supply component includes: a supply pipeline, a first gas cylinder, a fifth control valve, and a first flowmeter. The supply pipeline communicates with the first gas cylinder, and the fifth control valve and the first flowmeter are arranged on the supply pipeline. The regulating pipeline and the output pipeline communicate with the supply pipeline;

[0027] The tritium removal simulation experiment component includes: a simulation pipeline, a second gas cylinder, a humidifier, a steam-water separator and a sixth control valve. The simulation pipeline communicates with the second gas cylinder, and the humidifier, the steam-water separator and the sixth control valve are sequentially arranged on the simulation pipeline. The regulating pipeline and the output pipeline communicate with the simulation pipeline;

[0028] A seventh control valve is arranged on the regulating pipeline;

[0029] The output line includes a first output port and a second output port. The first output port is used to communicate with the input unit, and the second output port is used to communicate with the regeneration unit.

[0030] In a feasible implementation manner, the output unit includes:

[0031] An output pipeline, which is connected to the output end of the tritium removal unit;

[0032] A post-filter, which is arranged on the output pipeline;

[0033] An eighth control valve, which is arranged at the output end of the output pipeline;

[0034] A third pressure detection component, which is connected to the output pipeline;

[0035] A first dew point meter, which is connected to the output pipeline;

[0036] An eleventh control valve, which is arranged between the first dew point meter and the output pipeline.

[0037] In a feasible implementation manner, the evacuation unit includes:

[0038] An evacuation pipeline, which is connected to the output end of the tritium removal unit;

[0039] A vacuum pumping pipeline, which is connected to the output end of the evacuation pipeline;

[0040] A ninth control valve, which is arranged on the vacuum pumping pipeline;

[0041] An evacuation pipe, which is connected to the output end of the evacuation pipeline;

[0042] A muffler, which is arranged on the evacuation pipe;

[0043] A third temperature sensor, which is connected to the evacuation pipeline;

[0044] A tenth control valve, which is arranged on the evacuation pipe.

[0045] According to the second aspect of the embodiments of the present application, a tritium removal method is provided, which is applied to the tritium removal system described in any of the above technical solutions. The tritium removal method includes:

[0046] Performing a vacuum pumping process on the tritium removal unit through the evacuation unit;

[0047] Input the medium containing tritiated water into the tritium removal unit, and after tritium removal treatment, discharge it via the output unit;

[0048] Close the input unit and the output unit, and evacuate the tritium removal unit through the evacuation unit;

[0049] Turn on the regeneration unit to regenerate the tritium removal unit.

[0050] In a feasible implementation manner, the tritium removal method further includes:

[0051] In response to the leak detection instruction, supply the experimental medium to the tritium removal system through the experimental simulation unit, and control the output end of the tritium removal system to be in a closed state for leak point detection;

[0052] In response to the test instruction, supply the test medium with a dew point temperature greater than or equal to the first threshold to the tritium removal unit through the experimental simulation unit, and test the dew point value of the medium discharged from the output end of the tritium removal unit;

[0053] In response to the regeneration experiment instruction, supply the regeneration medium to the tritium removal unit through the regeneration medium supply component of the experimental simulation unit to regenerate the tritium removal unit, and then supply the test medium with a dew point temperature greater than or equal to the first threshold to the tritium removal unit through the tritium removal simulation experiment component, and test the dew point value of the medium discharged from the output end of the tritium removal unit.

[0054] In a feasible implementation manner, the step of supplying the regeneration medium to the tritium removal unit through the regeneration unit in response to the regeneration instruction includes:

[0055] Turn on the heater of the regeneration unit, supply the regeneration medium to the tritium removal unit through the regeneration pipeline, the regeneration medium heats and regenerates the molecular sieve desiccant in the drying tower, and then discharges the gas through the evacuation unit.

[0056] Compared with the prior art, the present invention has at least the following beneficial effects:

[0057] The tritium removal system provided by the embodiment of the present application includes a tritium removal unit, an input unit, a regeneration unit, an output unit, and a venting unit. In the process of using the tritium removal system provided by the embodiment of the present application, the helium gas containing tritiated water can enter the tritium removal unit through the input unit. After the tritium removal unit dries and adsorbs the tritiated water in the helium gas through the drying tower, the helium gas is then discharged into the helium gas circuit through the output unit. The tritium removal unit of the tritium removal system provided by the embodiment of the present application includes a plurality of tritium removal components arranged in parallel. Through the setting of the first control valve and the second control valve, each drying tower can work independently, and has the characteristics of high tritium removal efficiency, large gas treatment capacity, and long continuous operation time. Further, through the setting of the regeneration unit in the tritium removal system provided by the embodiment of the present application, after the tritium removal unit has been removing tritium for a period of time, a medium with a higher temperature can be supplied to the tritium removal unit through the regeneration unit to heat and regenerate the molecular sieve desiccant in the drying tower. Then, the medium used for regeneration can be discharged outside the tritium removal unit through the venting unit, so that the tritium removal system can operate continuously, and the safety and convenience of operation of the tritium removal system are high. Still further, through the setting of the venting unit, in addition to being used to discharge the medium for regenerating the drying tower, the impurity gas in the tritium removal system can also be evacuated through the venting unit before the tritium removal system removes tritium, making the use of the tritium removal system more efficient. Description of the Drawings

[0058] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0059] Figure 1 It is a schematic structural diagram of a tritium removal system according to an embodiment provided by the present application;

[0060] Figure 2 It is a schematic structural diagram of a performance experiment of a tritium removal system according to an embodiment provided by the present application;

[0061] Figure 3 It is a schematic step flow chart of a tritium removal method according to an embodiment provided by the present application.

[0062] Among them, Figures 1 to 2 The corresponding relationship between the reference numerals and the component names in the drawings is:

[0063] 110 Tritium removal unit, 120 Input unit, 130 Regeneration unit, 140 Output unit, 150 Venting unit, 160 Experiment simulation unit;

[0064] 111 Drying tower, 112 First control valve, 113 Second control valve;

[0065] 121 Input pipeline, 122 pre-filter, 123 third control valve, 124 first pressure detector;

[0066] 131 regeneration pipeline, 132 heater, 133 fourth control valve, 134 first temperature sensor, 135 second temperature sensor;

[0067] 141 output pipeline, 142 post-filter, 143 eighth control valve, 144 third pressure detector, 145 first dew point meter, 146 eleventh control valve;

[0068] 151 evacuation pipeline, 152 vacuum extraction pipeline, 153 ninth control valve, 154 evacuation pipe, 155 muffler, 156 third temperature sensor, 157 tenth control valve;

[0069] 161 regeneration medium supply assembly, 162 tritium removal simulation experiment assembly, 163 adjustment pipeline, 164 output line, 165 seventh control valve, 166 second dew point meter, 167 regeneration test instrument valve, 168 fourth pressure detector;

[0070] 1611 supply pipeline, 1612 first gas cylinder, 1613 fifth control valve, 1614 first flow meter;

[0071] 1621 simulation pipeline, 1622 second gas cylinder, 1623 humidifier, 1624 steam-water separator, 1625 sixth control valve, 1626 twelfth control valve;

[0072] 1641 first output port, 1642 second output port. Detailed implementation mode

[0073] In order to better understand the above technical solution, the technical solution of the embodiment of the present application will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the embodiments are detailed descriptions of the technical solution of the embodiment of the present application, rather than limitations on the technical solution of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0074] Such as Figure 1 And Figure 2As shown in the figure, a tritium removal system is provided according to the first aspect of the embodiments of the present application, including: a tritium removal unit 110; an input unit 120 connected to the input end of the tritium removal unit 110; a regeneration unit 130 connected to the input end of the tritium removal unit 110; an output unit 140 connected to the output end of the tritium removal unit 110; and a venting unit 150 connected to the output end of the tritium removal unit 110. Among them, the tritium removal unit 110 includes a plurality of parallel tritium removal components, and each tritium removal component includes a drying tower 111, a first control valve 112, and a second control valve 113. The first control valve 112 is provided at the input end of the drying tower 111, and the second control valve 113 is provided at the output end of the drying tower 111.

[0075] The tritium removal system provided by the embodiments of the present application includes a tritium removal unit 110, an input unit 120, a regeneration unit 130, an output unit 140, and a venting unit 150. In the process of using the tritium removal system provided by the embodiments of the present application, helium gas containing tritiated water can enter the tritium removal unit 110 through the input unit 120. After the tritium removal unit 110 dries and adsorbs the tritiated water in the helium gas through the drying tower 111, the helium gas is then discharged into the helium gas circuit through the output unit 140. The tritium removal unit 110 of the tritium removal system provided by the embodiments of the present application includes a plurality of parallel tritium removal components. Through the settings of the first control valve 112 and the second control valve 113, each drying tower 111 can operate independently, with the characteristics of high tritium removal efficiency, large gas processing capacity, and long continuous operation time. Further, the tritium removal system provided by the embodiments of the present application further includes a regeneration unit 130. After the tritium removal unit 110 has been removing tritium for a period of time, a medium with a higher temperature can be supplied to the tritium removal unit 110 through the regeneration unit 130 to heat and regenerate the molecular sieve desiccant in the drying tower 111. Then, the medium used for regeneration can be discharged outside the tritium removal unit 110 through the venting unit 150, enabling the tritium removal system to operate continuously, with high safety and convenient operation. Still further, through the setting of the venting unit 150, in addition to being used to discharge the medium for regenerating the drying tower 111, the impurity gas in the tritium removal system can also be vented through the venting unit 150 before the tritium removal system removes tritium, making the use of the tritium removal system more efficient.

[0076] It can be understood that since the tritium removal unit 110 includes a plurality of parallel tritium removal components, and each tritium removal component includes a drying tower 111, a first control valve 112, and a second control valve 113, the independent use of each drying tower 111 can be controlled by controlling the first control valve 112 and the second control valve 113 of each tritium removal component. By setting a plurality of drying towers 111, the continuous operation time of the tritium removal system can be increased, meeting the process requirements.

[0077] It is understandable that the input end of the tritium removal unit 110 is connected to the input unit 120 and the regeneration unit 130. Based on this, during the use of the tritium removal system, the input unit 120 can be connected to the process section or equipment that needs tritium removal in the helium loop of the fuel transient irradiation test system, while the regeneration unit 130 is used to connect the regeneration medium. By remotely controlling the opening and closing of the third control valve 123 and the fourth control valve 133, the tritium removal helium or the regeneration medium can be conveniently and quickly connected to the input end of the tritium removal unit 110.

[0078] Furthermore, the output end of the tritium removal unit 110 is connected to the output unit 140 and the evacuation unit 150. The output unit 140 is connected to the process section or equipment of the helium loop of the fuel transient irradiation test system that needs to discharge the tritium-removed helium. By independently setting the evacuation unit 150, the tritium removal system can be evacuated or evacuated when needed, making the use of the tritium removal system more efficient and convenient.

[0079] In some examples, the design pressure of the tritium removal system is 7 MPa, the design temperature is 300 °C, the rated flow rate is 0.04 Nm 3 / min, and the main material is 022Cr17Ni12Mo2 stainless steel. The tritium removal system adopts a modular design and layout, and the system is integrally skid-mounted. All equipment is installed in an overall frame and connected to the fuel transient irradiation test system through pipe nozzles.

[0080] As Figure 1 and Figure 2 shown, in a feasible implementation manner, the input unit 120 includes: an input pipeline 121, which is connected to the input end of the tritium removal unit 110; a pre-filter 122, which is arranged on the input pipeline 121; a third control valve 123, which is arranged at the input end of the input pipeline 121; and a first pressure detection component 124, which is connected to the input pipeline 121.

[0081] In this technical solution, the structural composition of the input unit 120 is further provided. The input unit 120 may include an input pipeline 121, a pre-filter 122, a third control valve 123, and a first pressure detection component 124. During the tritium removal process, the third control valve 123 can be opened to make the input pipeline 121 in a conducting state. The helium containing tritiated water can enter the tritium removal unit 110 after passing through the pre-filter 122. After the tritium removal unit 110 dries and adsorbs the tritiated water in the helium through the drying tower 111, the helium is then discharged into the helium loop through the output unit 140. By setting the pre-filter 122, solid and liquid particles in the helium can be filtered out, and then the helium enters the tritium removal unit 110, which can make the operation of the tritium removal unit 110 safer and more efficient, and at the same time can make the quality of the helium output by the output unit 140 higher.

[0082] It can be understood that by setting the first pressure detector 124, the pressure of the medium input via the input pipeline 121 can be detected, making the use of the tritium removal system safer.

[0083] It can be understood that the filtration grade of the pre-filter 122 is 1μm, that is to say, the pre-filter 122 is used to remove solid and liquid particles of 1μm and above.

[0084] It can be understood that in addition to being used to input helium gas that needs to be de-tritiated, the input pipeline 121 can also be used to input a medium for testing the tritium removal system. For example, if the dew point of the test medium is known, then the medium with the known dew point is input into the tritium removal unit 110 through the input pipeline 121. After that, by detecting the dew point of the medium output via the output unit 140, the tritium removal effect of the tritium removal unit 110 can be determined, ensuring that the tritium removal unit 110 can perform tritium removal and guaranteeing the reliability of the operation of the tritium removal system.

[0085] Such as Figure 1 and Figure 2 As shown, in a feasible implementation, the regeneration unit 130 includes: a regeneration pipeline 131, connected to the input end of the tritium removal unit 110; a heater 132, arranged on the regeneration pipeline 131; a fourth control valve 133, arranged at the input end of the regeneration pipeline 131; a first temperature sensor 134, connected to the heater 132; and a second temperature sensor 135, connected to the regeneration pipeline 131 and located at the output end of the heater 132.

[0086] In this technical solution, the structural composition of the regeneration unit 130 is further provided. The regeneration unit 130 can include a regeneration pipeline 131, a heater 132, a fourth control valve 133, a first temperature sensor 134, and a second temperature sensor 135. Based on this, during the use of the regeneration unit 130, the regeneration medium can be input into the tritium removal unit 110 through the regeneration pipeline 131. During the regeneration process, the heater 132 can be turned on. The heater 132 can heat the regeneration medium. After the heated medium enters the drying tower 111 and contacts the molecular sieve desiccant in the drying tower 111, the molecular sieve desiccant can be heated, carrying the water vapor on the molecular sieve desiccant, and then discharged outside the tritium removal system via the evacuation unit 150, which can improve the regeneration efficiency of the drying tower 111. And by setting the fourth control valve 133, it is convenient to control the opening and closing of the regeneration pipeline 131. By setting the first temperature sensor 134, it is convenient to monitor the operating temperature of the heater 132. And by setting the second temperature sensor 135, it is convenient to monitor the temperature of the medium after heating, ensuring the feasibility of regeneration.

[0087] In some examples, the adsorbent in the drying tower 111 is a spherical molecular sieve with a diameter of φ3mm to φ5mm, and the filter elements in the pre-filter 122 and the post-filter 142 are both made of 06Cr19Ni10 sintered stainless steel material.

[0088] In some examples, to ensure the reliability of heating, the heater 132 can be an electric heater. The heating resistance wire is arranged in the inner cavity of the electric heater. The heating power of the electric heater is 1kW, and the electric heating wire uses Ni20Cr80 heating resistance wire.

[0089] As Figure 1 and Figure 2 shown, in a feasible implementation, an experimental simulation unit 160 is further included. The experimental simulation unit 160 includes a regeneration medium supply component 161, a deuterium removal simulation experiment component 162, a regulating pipeline 163, and an output pipeline 164. The regeneration medium supply component 161 and the deuterium removal simulation experiment component 162 are in parallel, the regulating pipeline 163 and the output pipeline 164 are in parallel, the regulating pipeline 163 is connected to the regeneration medium supply component 161 and the deuterium removal simulation experiment component 162, and the output pipeline 164 is connected to the regeneration medium supply component 161 and the deuterium removal simulation experiment component 162.

[0090] In this technical solution, the structural composition of the experimental simulation unit 160 is further provided. In addition to heating the regeneration medium, the experimental simulation unit 160 can also store the regeneration medium for output, and at the same time, it can also be used to store the medium for actual measurement and simulation of the deuterium removal system. Through the setting of the experimental simulation unit 160, the actual deuterium removal effect of the deuterium removal unit 110 can be detected, and at the same time, the regeneration performance can also be detected.

[0091] In this technical solution, the experimental simulation unit 160 includes a regeneration medium supply component 161. Based on this, when the drying tower 111 in the deuterium removal unit 110 is regenerated by the regeneration unit 130, the regeneration medium supply component 161 can be turned on, and the regeneration medium is output through the regeneration medium supply component 161. The output flow of the regeneration medium is adjusted by the regulating pipeline 163, and then the regeneration medium can be output to the regeneration pipeline 131 of the regeneration unit 130 through the output pipeline 164. After further heating by the heater 132, it is supplied into the drying tower 111 to heat the molecular sieve desiccant in the drying tower 111 for regeneration, so that the deuterium removal system can operate efficiently.

[0092] In this technical solution, the experimental simulation unit 160 further includes a tritium removal simulation experiment component 162. Based on this, helium gas can be stored in the tritium removal simulation experiment component 162. Then, when detecting the performance of the tritium removal system, a test medium with a dew point value greater than or equal to the first threshold can be output through the tritium removal simulation experiment component 162. The test medium can be input into the tritium removal unit 110 through the input unit 120. After that, only by detecting the dew point of the medium output through the output unit 140 can the tritium removal effect of the tritium removal unit 110 be determined. For the same reason, after the drying tower 111 is regenerated by the regeneration medium supply component 161 and the heater 132, a test medium with a dew point value greater than or equal to the first threshold can also be output through the tritium removal simulation experiment component 162. The test medium can be input into the tritium removal unit 110 through the input unit 120. After that, only by detecting the dew point of the medium output through the output unit 140 can the regeneration effect of the drying tower 111 of the tritium removal unit 110 be determined, which is convenient for clarifying the temperature and supply flow rate of the regeneration medium and making the use of the tritium removal system safer and more efficient.

[0093] As Figure 1 and Figure 2 shown, in a feasible implementation, the regeneration medium supply component 161 includes: a supply pipeline 1611, a first gas cylinder 1612, a fifth control valve 1613, and a first flowmeter 1614. The supply pipeline 1611 is connected to the first gas cylinder 1612. The fifth control valve 1613 and the first flowmeter 1614 are arranged on the supply pipeline 1611. The adjustment pipeline 163 and the output pipeline 164 are connected to the supply pipeline 1611.

[0094] In this technical solution, the structural composition of the regeneration medium supply component 161 is further provided. The first gas cylinder 1612 can be used to store the regeneration medium. The setting of the fifth control valve 1613 facilitates controlling the output, closing, and opening degree of the first gas cylinder 1612. The setting of the first flowmeter 1614 facilitates detecting the medium output from the supply pipeline 1611. Based on this, when the tritium removal unit 110 is regenerated by the regeneration medium supply component 161, the fifth control valve 1613 can be opened, and the first gas cylinder 1612 outputs the regeneration medium. At the same time, the supply pipeline 1611 is conducted to the adjustment pipeline 163. In this case, the opening degree of the fifth control valve 1613 can be adjusted, and the reading of the first flowmeter 1614 can be observed. When the flow rate of the regenerated medium supply meets the expected requirements, the adjustment pipeline 163 can be closed, and the supply pipeline 1611 can be conducted to the output pipeline 164. The output pipeline 164 can output the regeneration medium with a target flow rate for the regeneration pipeline 131. After the regeneration medium is heated by the heater 132, the molecular sieve desiccant in the drying tower 111 can be regenerated.

[0095] In some examples, in order to reduce costs while ensuring the reliability of the tritium removal system operation, the medium stored in the first gas cylinder 1612 can be nitrogen.

[0096] In some examples, in order to facilitate the detection of the dew point and pressure of the medium output via the tritium removal simulation experiment component 162 and the medium output via the regenerated medium supply component 161, a second dew point meter 166, a regeneration test instrument valve 167, and a fourth pressure detector 168 can also be provided on the output line 164.

[0097] In a feasible implementation, the tritium removal simulation experiment component 162 includes: a simulation pipeline 1621, a second gas cylinder 1622, a humidifier 1623, a steam-water separator 1624, and a sixth control valve 1625. The simulation pipeline 1621 is connected to the second gas cylinder 1622, and the humidifier 1623, the steam-water separator 1624, and the sixth control valve 1625 are sequentially arranged on the simulation pipeline 1621. The adjustment pipeline 163 and the output line 164 are connected to the simulation pipeline 1621.

[0098] In this technical solution, the structural composition of the tritium removal simulation experiment component 162 is further provided. When it is necessary to detect the performance of the tritium removal system, the sixth control valve 1625 can be opened, and then the second gas cylinder 1622 outputs the test medium. At the same time, the humidifier 1623 and the steam-water separator 1624 are opened. In this case, the test medium can be output through the adjustment pipeline 163. During this process, by adjusting the humidifier 1623 and the steam-water separator 1624, the dew point temperature of the test medium can be adjusted. When the dew point temperature meets the test requirements, the adjustment pipeline 163 can be closed, so that the test medium is output to the input unit 120 via the output line 164, and the test medium can enter the tritium removal unit 110. Then, by detecting the dew point of the test medium output via the tritium removal unit 110, the actual tritium removal effect of the tritium removal unit 110 can be tested.

[0099] It can be understood that for the same reason, when it is necessary to detect the regeneration effect of the tritium removal unit 110, after the regeneration of the tritium removal unit 110 is completed, the sixth control valve 1625 can be opened, and then the second gas cylinder 1622 outputs the test medium. At the same time, the humidifier 1623 and the steam-water separator 1624 are opened. In this case, the test medium can be output through the adjustment pipeline 163. During this process, by adjusting the humidifier 1623 and the steam-water separator 1624, the dew point temperature of the test medium can be adjusted. When the dew point temperature meets the test requirements, the adjustment pipeline 163 can be closed, so that the test medium is output to the input unit 120 via the output line 164, and the test medium can enter the tritium removal unit 110. Then, by detecting the dew point of the test medium output via the tritium removal unit 110, the actual regeneration effect of the tritium removal unit 110 can be tested.

[0100] In a feasible implementation, a seventh control valve 165 is provided on the regulating pipeline 163. With this arrangement, it is convenient to control the opening and closing of the regulating pipeline 163. When adjusting the dew point of the test medium or the flow rate of the regeneration medium, the seventh control valve 165 can be in an open state. After the test medium or the regeneration medium is debugged, the seventh control valve 165 can be closed so that the test medium or the regeneration medium is output via the output path 164.

[0101] As Figure 1 and Figure 2 shown, in a feasible implementation, the output path 164 includes a first output port 1641 and a second output port 1642. The first output port 1641 is used to communicate with the input unit 120, and the second output port 1642 is used to communicate with the regeneration unit 130. Based on this, it is convenient to connect the output path 164 with the input unit 120 and the regeneration unit 130, enabling different medium gases to be supplied to the intended units, making the use of the tritium removal system more convenient, avoiding frequent switching of the pipeline connection mode, and reducing the probability of incorrect operation.

[0102] As Figure 1 and Figure 2 shown, in a feasible implementation, the output unit 140 includes: an output pipeline 141, connected to the output end of the tritium removal unit 110; a post-filter 142, provided on the output pipeline 141; an eighth control valve 143, provided at the output end of the output pipeline 141; a third pressure detection component 144, connected to the output pipeline 141; a first dew point meter 145, connected to the output pipeline 141; and an eleventh control valve 146, provided between the first dew point meter 145 and the output pipeline 141. Based on this, after the tritium in the helium gas containing tritiated water is removed by the tritium removal unit 110, the post-filter 142 can further filter out solid and liquid particulate matters and then input them into the helium gas circuit to complete the tritium removal of the helium gas containing tritiated water. The arrangement of the eighth control valve 143 facilitates the control of the opening and closing of the output pipeline 141.

[0103] In this technical solution, in addition to outputting the tritium-removed helium gas during the actual operation process, the output unit 140 can also output the medium for testing the tritium removal system. By opening the eleventh control valve 146, the completed tritium-removed test medium can be tested through the first dew point meter 145, thereby detecting the actual tritium removal effect and regeneration effect of the tritium removal unit 110, making the use of the tritium removal system safer and more efficient.

[0104] In some examples, to improve the filtration efficiency, both the pre-filter 122 and the post-filter 142 are filled with sintered 304 stainless steel material.

[0105] As Figure 1 and Figure 2 shown, in a feasible embodiment, the evacuation unit 150 includes: an evacuation pipeline 151, connected to the output end of the tritium removal unit 110; a vacuum pumping pipeline 152, connected to the output end of the evacuation pipeline 151; a ninth control valve 153, arranged on the vacuum pumping pipeline 152; an evacuation pipe 154, connected to the output end of the evacuation pipeline 151; a muffler 155, arranged on the evacuation pipe 154; a third temperature sensor 156, connected to the evacuation pipeline 151; and a tenth control valve 157, arranged on the evacuation pipe 154.

[0106] In this technical solution, the structural composition of the evacuation unit 150 is further provided. The evacuation unit 150 may include an evacuation pipeline 151, a vacuum pumping pipeline 152, and a ninth control valve 153. Based on this, it can be connected to the vacuum pumping pipeline 152 through a vacuum pumping device, and then the ninth control valve 153 is opened, and the tritium removal unit 110 can be evacuated through the evacuation pipeline 151, so that the tritium removal system enters the state to be used.

[0107] In this technical solution, the evacuation unit 150 may further include an evacuation pipe 154 and a muffler 155. Based on this, when evacuating the tritium removal system, the gas medium can be discharged outside the tritium removal system through the evacuation pipe 154 and the muffler 155, which can reduce the exhaust noise and make it safer to use.

[0108] In some examples, in order to facilitate the control of the evacuation pipeline 151, the tenth control valve 157 may be arranged at the front end of the muffler 155.

[0109] As Figure 3 shown, according to the second aspect of the embodiments of the present application, a tritium removal method is proposed, which is applied to the tritium removal system of any of the above technical solutions. The tritium removal method includes:

[0110] Step 301: Evacuate the tritium removal unit through the evacuation unit;

[0111] Step 302: Input the medium containing tritiated water into the tritium removal unit, and after tritium removal treatment, discharge it through the output unit;

[0112] Step 303: Close the input unit and the output unit, and evacuate the tritium removal unit through the evacuation unit;

[0113] Step 304: Start the regeneration unit to regenerate the tritium removal unit.

[0114] Since the tritium removal method provided by the embodiments of the present application is applied to the tritium removal system of any of the above technical solutions, this tritium removal method has all the beneficial effects of the tritium removal system of the above technical solutions.

[0115] As Figures 1 to 3 shown, through the tritium removal method provided by the embodiments of the present application, first, the evacuation unit 150 evacuates the tritium removal unit 110 to make the tritium removal system enter the standby state. Then, when tritium removal is required, the helium gas containing tritiated water can enter the tritium removal unit 110 through the input unit 120. After the tritium removal unit 110 dries and adsorbs the tritiated water in the helium gas through the drying tower 111, the helium gas is then discharged into the helium gas circuit through the output unit 140. After the tritium removal operation is completed, the system is depressurized. Specifically, the evacuation unit 150 can evacuate the gas in the tritium removal system. Then, the regeneration unit 130 can output the regeneration medium and heat the regeneration medium at the same time, so that the regeneration medium heats and regenerates the molecular sieve desiccant in the drying tower 111. Then, the medium used for regeneration can be discharged outside the tritium removal unit 110 through the evacuation unit 150, so that the tritium removal system can operate continuously, and the tritium removal system has high safety and is convenient to operate.

[0116] As Figure 1 and Figure 2 shown, the tritium removal method provided by the embodiments of the present application, in combination with the specific structure of the tritium removal system, may include the following steps:

[0117] System connection: Connect the tritium removal system to the fuel transient irradiation test loop. Among them, the input unit 120 and the output unit 140 are connected to the helium pipeline system of the test loop, the evacuation pipe 154 of the evacuation unit 150 is connected to the exhaust system of the test loop, and the evacuation pipeline 152 of the evacuation unit 150 is connected to the evacuation system of the test loop.

[0118] System evacuation: Use the evacuation system of the fuel transient irradiation test loop and the evacuation pipeline 152 to evacuate the tritium removal system. After the vacuum degree of the tritium removal system meets the requirements, close the ninth control valve 153, and the tritium removal system is in a standby state.

[0119] System tritium removal: Open the third control valve 123, and the helium gas containing tritiated water enters the drying tower 111 of the tritium removal unit 110 from the input unit 120. After drying and adsorbing the tritiated water, it is discharged into the helium pipeline system of the test loop through the post-filter 142 and the eighth control valve 143 in sequence.

[0120] System depressurization: Close the third control valve 123 and the eighth control valve 143, and open the tenth control valve 157 and the second control valve 113 at the outlet of the tritium removal component in sequence, and discharge the helium gas in the tritium removal unit 110 to the exhaust system of the irradiation test loop through the evacuation pipe 154.

[0121] System regeneration: Turn on the heater 132 and the fourth control valve 133. The dried nitrogen gas is electrically heated and then enters the drying tower 111 of the tritium removal unit 110 to heat and regenerate the molecular sieve desiccant. The regenerated gas coming out of the drying tower 111 is discharged into the exhaust system of the irradiation test loop after noise elimination by the discharge port muffler 155.

[0122] Thus, in the embodiment of the present invention, aiming at the tritium removal requirement of the in-core transient irradiation test system for nuclear fuel, the tritium in the helium circuit, which is the core component of the test system, is removed, ensuring the purity of the helium gas in the irradiation test loop and preventing radioactive tritium from being released into the environment. The present invention uses the molecular sieve drying and adsorption process to remove the tritiated water in the helium circuit. The tritium removal system is provided with 6 groups of parallel tritium removal components, and each group of tritium removal components can operate independently in sequence. And pre-filters 122 and post-filters 142 are respectively arranged at the inlet and outlet of the tritium removal unit 110, which has the characteristics of high tritium removal efficiency, large gas treatment capacity and long continuous operation time. Moreover, the present invention uses the method of electrically heating inert gas to regenerate the molecular sieve desiccant. The tritium removal waste gas is discharged to the waste gas treatment system. The tritium removal and regeneration are remotely operated by a computer system. And the tritium removal system adopts modular design and layout, which has the characteristics of high safety, convenient installation and operation.

[0123] As Figure 1 and Figure 2 shown, in a feasible embodiment, the tritium removal method further includes: in response to a leak detection instruction, supplying an experimental medium to the tritium removal system through the experimental simulation unit 160, and controlling the output end of the tritium removal system to be in a closed state for leak point detection.

[0124] In this technical solution, considering the safe operation of the tritium removal system, the leak point of the tritium removal system can also be detected. Based on this, an experimental medium can be supplied to the tritium removal unit 110, and the tritium removal system is maintained at a certain pressure. Then, by controlling the output end of the tritium removal unit 110 to be in a closed state, the leak point of the tritium removal system can be detected, ensuring the safe operation of the equipment.

[0125] As Figure 1 and Figure 2 shown, in some examples, in combination with the specific structure of the tritium removal system, in response to a leak detection instruction, the specific control of the tritium removal system may include the following steps:

[0126] Open the fifth control valve 1613 of the experimental simulation unit 160, the instrument valve in front of the fourth pressure detector 168, and the first output port 1641, and close the second output port 1642 and the twelfth control valve 1626 of the experimental simulation unit 160;

[0127] Open the third control valve 123, the first control valve 112, and the second control valve 113 of the tritium removal system, close the eighth control valve 143, the tenth control valve 157, and the fourth control valve 133 of the tritium removal system. First, slowly raise the pressure of the tritium removal system to 3.5 MPa, and then increase the pressure step by step by 0.5 MPa until the test pressure is reached and keep the pressure for 30 minutes. Preferably, the test pressure is 7 MPa. During the pressure holding period, apply a leak detection agent to the welds and mechanical connection parts for inspection. After the test, reduce the pressure of the tritium removal system to atmospheric pressure. Specifically, during the test, no bubbles emerging, no abnormal sounds, and no visible deformation at the welds and mechanical connection parts indicate that the test is qualified.

[0128] In a feasible implementation, the tritium removal method further includes: in response to a test instruction, supplying a test medium with a dew point temperature greater than or equal to a first threshold to the tritium removal unit 110 through the experimental simulation unit 160, and testing the dew point value of the discharged medium via the output end of the tritium removal unit 110.

[0129] In this technical solution, considering the need to accurately understand the tritium removal ability of the tritium removal system, it is also possible to, in response to a test instruction, supply a test medium with a known dew point to the tritium removal unit 110, and then detect the dew point value of the output medium via the tritium removal unit 110, so as to obtain the tritium removal effect of the tritium removal system, making the use of the equipment more reliable.

[0130] As Figure 1 and Figure 2 shown, in some examples, in combination with the specific structure of the tritium removal system, in response to a test instruction, the specific control of the tritium removal system may include the following steps:

[0131] Test flow rate adjustment: Close the fifth control valve 1613, the first output port 1641, and the second output port 1642 of the experimental simulation unit 160, open the sixth control valve 1625, the tenth control valve 157, and the seventh control valve 165, and adjust the helium test flow rate output via the tritium removal simulation experiment component 162. Preferably, adjust the helium test flow rate to 2.4 ± 0.1 Nm 3 / h;

[0132] Helium dew point measurement and adjustment: After the helium test flow rate reaches the target value, open the regeneration test instrument valve 167, measure the helium dew point at the inlet of the tritium removal system, and adjust the dew point of helium by changing the water level height of the humidifier 1623. Preferably, adjust the helium dew point to ≥ 6 °C;

[0133] The drying tower 111 adsorbs. Open the input unit 120 of the tritium removal system, the first control valve 112 and the second control valve 113 of a single set of drying towers 111, and conduct adsorption tests on the six sets of drying towers 111 of the tritium removal unit 110 in sequence. The test time for each set of drying towers 111 is 4 hours. After the adsorption test of each set of drying towers 111 is completed, record the dew point of the helium gas at the outlet of the drying tower 111 measured by the first dew point meter 145 of the output unit 140. Preferably, it is qualified if the dew point of the helium gas measured by the first dew point meter 145 at the outlet of the drying tower 111 is ≤ -40°C.

[0134] As Figure 1 and Figure 2 shown, in a feasible implementation manner, the tritium removal method further includes: in response to a regeneration experiment instruction, after the adsorption experiment of the tritium removal unit 110 is completed, supply a regeneration medium to the tritium removal unit 110 through the regeneration medium supply component 161 of the experiment simulation unit 160 to regenerate the tritium removal unit 110, and then output a test medium with a dew point temperature greater than or equal to a first threshold to the tritium removal unit 110 through the tritium removal simulation experiment component 162, and test the dew point value of the medium discharged through the output end of the tritium removal unit 110 after regeneration.

[0135] In this technical solution, considering that the tritium removal unit 110 can be regenerated through the setting of the regeneration unit 130, the tritium removal effect after the regeneration of the tritium removal system should be verified. Based on this, the tritium removal system can also respond to a regeneration experiment instruction. First, supply a regeneration medium to the tritium removal unit 110 through the regeneration medium supply component 161 of the experiment simulation unit 160, and the heater 132 heats the regeneration medium to regenerate the drying tower 111. After the regeneration is completed, a test medium with a dew point temperature greater than or equal to a first threshold can be output to the tritium removal unit 110 through the tritium removal simulation experiment component 162, and then the dew point value of the medium output through the tritium removal unit 110 is detected, so as to know the regeneration effect of the tritium removal system and make the use of the equipment safer and more reliable.

[0136] In some examples, combined with the specific structure of the tritium removal system, in response to a regeneration experiment instruction, the specific control of the tritium removal system may include the following steps:

[0137] Test flow rate adjustment. Close the sixth control valve 1625 of the test system, the twelfth control valve 1626 arranged at the output end of the simulation pipeline 1621, the first output port 1641 and the second output port 1642, open the fifth control valve 1613 and the seventh control valve 165 of the test system, and adjust the nitrogen test flow rate output through the regeneration medium supply component 161; preferably, adjust the nitrogen test flow rate to 4.2 ± 0.2 Nm 3 / h;

[0138] Nitrogen dew point measurement and adjustment. After the nitrogen test flow rate reaches the target value, open the regeneration test instrument valve 167, measure the nitrogen dew point at the inlet of the tritium removal system, and adjust the nitrogen dew point by replacing the gas source; preferably, adjust the nitrogen dew point to ≤ -40°C.

[0139] Electric heating regeneration. Open the fourth control valve 133 of the regeneration pipeline 131, the inlet and outlet valves of the single-group drying tower 111, and the tenth control valve 157 of the evacuation pipe 151, and conduct regeneration tests on the six groups of drying towers 111 of the tritium removal unit 110 in sequence; during the test, first set the temperature of the electric heater 132 to 290°C and turn on the electric heating. When the nitrogen temperatures at the inlet and outlet of the drying tower 111 are stable at the set values, preferably, the set values of the nitrogen temperatures at the inlet and outlet of the drying tower 111 are 190°C ± 25°C and > 100°C respectively. After the electric heater 132 continues to heat for 30 minutes, turn it off, and continue to supply gas until the nitrogen temperature at the outlet of the drying tower 111 drops below the target value of 60°C, and the regeneration ends. Evacuate the regeneration medium from the tritium removal system, and then conduct adsorption tests on the six groups of drying towers 111 of the tritium removal unit 110 in sequence. The test time for each group of drying towers 111 is 4 hours. After the adsorption test of each group of drying towers 111 ends, record the helium dew point at the outlet of the drying tower 111 measured by the first dew point meter 145 of the output unit 140. Preferably, the helium dew point measured by the first dew point meter 145 at the outlet is ≤ -40°C for the regeneration test to be qualified.

[0140] In a feasible implementation manner, the step of supplying the regeneration medium from the regeneration unit 130 to the tritium removal unit 110 in response to the regeneration instruction includes: turning on the heater 132 of the regeneration unit 130, supplying the regeneration medium to the tritium removal unit 110 through the regeneration pipeline 131, heating and regenerating the molecular sieve desiccant in the drying tower 111 with the regeneration medium, and then discharging the gas through the evacuation unit 150.

[0141] In this technical solution, the specific steps of regeneration are further provided. The regeneration medium can be input into the tritium removal unit 110 through the regeneration pipeline 131. During the regeneration process, the heater 132 can be turned on, and the heater 132 can heat the regeneration medium. After being heated, the medium enters the drying tower 111 and contacts the molecular sieve desiccant in the drying tower 111, so as to heat the molecular sieve desiccant and carry the water vapor on the molecular sieve desiccant, and then discharge it to the outside of the tritium removal system through the evacuation unit 150, which can improve the regeneration efficiency of the drying tower 111. The setting of the fourth control valve 133 facilitates the control of the opening and closing of the regeneration pipeline 131. The setting of the first temperature sensor 134 facilitates the monitoring of the operating temperature of the heater 132, and the setting of the second temperature sensor 135 facilitates the monitoring of the temperature of the medium after heating, ensuring the feasibility of regeneration.

[0142] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "plural" means two or more, unless otherwise clearly defined. The terms "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "joined" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0143] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation on the present invention.

[0144] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0145] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tritium removal system, characterized in that, Comprising: Tritium removal unit; Input unit, the input unit being connected to the input end of the tritium removal unit; Regeneration unit, the regeneration unit being connected to the input end of the tritium removal unit; Output unit, the output unit being connected to the output end of the tritium removal unit; Emptying unit, the emptying unit being connected to the output end of the tritium removal unit; Wherein, the tritium removal unit includes a plurality of tritium removal components arranged in parallel, and each tritium removal component includes a drying tower, a first control valve and a second control valve. The first control valve is arranged at the input end of the drying tower, and the second control valve is arranged at the output end of the drying tower; Wherein, the regeneration unit includes: Regeneration pipeline, the regeneration pipeline being connected to the input end of the tritium removal unit; Heater, the heater being arranged on the regeneration pipeline; Fourth control valve, the fourth control valve being arranged at the input end of the regeneration pipeline; First temperature sensor, the first temperature sensor being connected to the heater; Second temperature sensor, the second temperature sensor being connected to the regeneration pipeline and located at the output end of the heater; The tritium removal system further includes: an experimental simulation unit, and the experimental simulation unit includes: Regeneration medium supply component, tritium removal simulation experiment component, adjustment pipeline and output path. The regeneration medium supply component and the tritium removal simulation experiment component are in parallel, the adjustment pipeline and the output path are in parallel, the adjustment pipeline is connected to the regeneration medium supply component and the tritium removal simulation experiment component, and the output path is connected to the regeneration medium supply component and the tritium removal simulation experiment component; The regeneration medium supply component includes: a supply pipeline, a first gas cylinder, a fifth control valve, and a first flowmeter. The supply pipeline is connected to the first gas cylinder, and the fifth control valve and the first flowmeter are arranged on the supply pipeline. The adjustment pipeline and the output path are connected to the supply pipeline; The tritium removal simulation experiment component includes: a simulation pipeline, a second gas cylinder, a humidifier, a steam-water separator and a sixth control valve. The simulation pipeline is connected to the second gas cylinder, and the humidifier, the steam-water separator and the sixth control valve are sequentially arranged on the simulation pipeline. The adjustment pipeline and the output path are connected to the simulation pipeline; A seventh control valve is arranged on the adjustment pipeline; The output path includes a first output port and a second output port. The first output port is used to be connected to the input unit, and the second output port is used to be connected to the regeneration unit; Wherein, the emptying unit includes: Emptying pipeline, the emptying pipeline being connected to the output end of the tritium removal unit; Vacuum pumping pipeline, the vacuum pumping pipeline being connected to the output end of the emptying pipeline; Ninth control valve, the ninth control valve being arranged on the vacuum pumping pipeline; Emptying pipe, the emptying pipe being connected to the output end of the emptying pipeline; Silencer, the silencer being arranged on the emptying pipe; Third temperature sensor, the third temperature sensor being connected to the emptying pipeline; Tenth control valve, the tenth control valve being arranged on the emptying pipe.

2. The tritium removal system according to claim 1, wherein The input unit includes: Input pipeline, the input pipeline being connected to the input end of the tritium removal unit; Prefilter, the prefilter is arranged on the input pipeline; Third control valve, the third control valve is arranged at the input end of the input pipeline; First pressure detection component, the first pressure detection component is connected to the input pipeline.

3. The tritium elimination system according to claim 1, wherein The output unit includes: Output pipeline, the output pipeline is communicated with the output end of the tritium removal unit; Postfilter, the postfilter is arranged on the output pipeline; Eighth control valve, the eighth control valve is arranged at the output end of the output pipeline; Third pressure detection component, the third pressure detection component is connected to the output pipeline; First dew point meter, the first dew point meter is connected to the output pipeline; Eleventh control valve, the eleventh control valve is arranged between the first dew point meter and the output pipeline.

4. A tritium removal method, characterized in that, Applied to the tritium removal system according to any one of claims 1 to 3, the tritium removal method includes: Performing a vacuum pumping process on the tritium removal unit through the evacuation unit; Inputting the medium containing tritiated water into the tritium removal unit, and discharging it through the output unit after tritium removal treatment; Closing the input unit and the output unit, and evacuating the tritium removal unit through the evacuation unit; Starting the regeneration unit to regenerate the tritium removal unit.

5. The tritium removal method according to claim 4, characterized in that, Further includes: In response to a leak detection instruction, supplying an experimental medium to the tritium removal system through the experimental simulation unit, and controlling the output end of the tritium removal system to be in a closed state for leak point detection; In response to a test instruction, supplying a test medium with a dew point temperature greater than or equal to a first threshold to the tritium removal unit through the experimental simulation unit, and testing the dew point value of the medium discharged from the output end of the tritium removal unit; In response to a regeneration experiment instruction, supplying a regeneration medium to the tritium removal unit through the regeneration medium supply component of the experimental simulation unit to regenerate the tritium removal unit, and then outputting a test medium with a dew point temperature greater than or equal to a first threshold to the tritium removal unit through the tritium removal simulation experiment component, and testing the dew point value of the medium discharged from the output end of the tritium removal unit.

6. The tritium removal method according to claim 5, characterized in that, The step of supplying a regeneration medium to the tritium removal unit through the regeneration unit in response to a regeneration instruction includes: Starting the heater of the regeneration unit, supplying a regeneration medium to the tritium removal unit through the regeneration pipeline, the regeneration medium heats and regenerates the molecular sieve desiccant in the drying tower, and then discharges the gas through the evacuation unit.

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