CN112326361A - Tritium diffusion prevention device and tritium diffusion prevention operation method - Google Patents
Tritium diffusion prevention device and tritium diffusion prevention operation method Download PDFInfo
- Publication number
- CN112326361A CN112326361A CN202011317203.5A CN202011317203A CN112326361A CN 112326361 A CN112326361 A CN 112326361A CN 202011317203 A CN202011317203 A CN 202011317203A CN 112326361 A CN112326361 A CN 112326361A
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- Prior art keywords
- transmission
- box body
- hole
- pipe
- observation window
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- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims abstract description 46
- 229910052722 tritium Inorganic materials 0.000 title claims abstract description 46
- 238000009792 diffusion process Methods 0.000 title claims abstract description 41
- 230000002265 prevention Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 102
- 238000005070 sampling Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 20
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000010485 coping Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000000941 radioactive substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
- G01N2001/1037—Sampling from special places from an enclosure (hazardous waste, radioactive)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The disclosure belongs to the technical field of nuclear power, and particularly relates to a tritium diffusion prevention device and a tritium diffusion prevention operation method. This openly through box and the nuclear power plant vapor recovery system who is connected with the box, establish the micro-negative pressure environment fast, make former quick-operation such as connect plug and syringe needle sample and pipeline opening under the air environment that exposes, obtain effective envelope, improve staff's radiation protection effect, prevent into tritium diffusion and heavy water leakage. In addition, the tritium diffusion prevention device is simple in structure, convenient to operate, good in sealing effect, low in use cost, high in implementation speed and capable of coping with various complex field working environments.
Description
Technical Field
The invention belongs to the technical field of nuclear power, and particularly relates to a tritium diffusion prevention device and a tritium diffusion prevention operation method.
Background
Generally speaking, tritium-containing heavy water in a domestic heavy water reactor nuclear power plant generally needs to be sampled regularly or irregularly, a quick joint of a drain pipe is plugged and pulled out, and opening operations such as pipeline welding or cutting are carried out. The leakage of heavy water containing tritium is inevitable during the operation, and the released tritium is easy to enter the human body through respiration and skin ways to cause internal irradiation damage.
In the related technology, a tritium protection measure in the operation process is realized by mainly erecting a scaffold, a fireproof cloth and a temporary ventilation system on an operation site to form a temporary closed space to form a negative pressure shed. If the tritium-containing heavy water leaks or is sprayed out during the operation, the heavy water is likely to diffuse out of the negative pressure shed, so that the heavy water is lost, the ground is contaminated, and tritium diffusion events are caused.
Disclosure of Invention
In order to overcome the problems in the related art, a tritium diffusion prevention device and an operation method for preventing tritium diffusion are provided.
According to an aspect of embodiments of the present disclosure, there is provided a tritium diffusion prevention device including: the device comprises a box body, a sampler, a first transmission pipe, a second transmission pipe and a sampling pipe;
one end of the first transmission pipe is connected with the heavy water transmission system, the other end of the first transmission pipe is positioned in the box body, and the other end of the first transmission pipe is provided with a first quick joint;
two ends of the sampling tube are respectively connected with the heavy water transmission system, the sampler is connected between two ends of the sampling tube position, and the sampler is positioned in the box body;
the sampler is internally provided with a cavity, and the liquid of the heavy water transmission system is injected into the cavity through the sampling tube and flows back to the heavy water transmission system from the cavity through the sampling tube;
one end of the second conveying pipe is connected with a storage container, the other end of the second conveying pipe is provided with a second quick connector, the second quick connector can be spliced with the first quick connector, and the first quick connector and the second quick connector are opened and closed at two ends;
a transmission through hole is formed in the side wall of the box body, and the second transmission pipe can penetrate through the transmission through hole;
one or more operation through holes are formed in the side wall of the box body, and the edge of each operation through hole is connected with the cuff of one glove with sleeves;
the box body is provided with an observation window, an operator can check the internal condition of the box body through the observation window, and the observation window can be opened and closed;
the top end of the box body is provided with a ventilation interface, and the ventilation interface is connected with a steam recovery system of a nuclear power plant, so that a negative pressure space is formed inside the box body.
In one possible implementation, the device for preventing tritium diffusion further comprises: clamping a hoop;
the hoop is arranged at the position, close to the transmission through hole, on the outer side of the box body;
the clamp can fix the second transmission pipe at the position of the transmission through hole under the condition that the second transmission pipe penetrates through the transmission through hole.
In a possible implementation manner, a soft cover is arranged at the top end of the sampler, and a needle of a syringe for sampling can penetrate through the soft cover to enter the cavity and suck liquid in the cavity.
In one possible implementation, the tritium diffusion prevention device further comprises a base, and the box is arranged on the base.
In one possible implementation, the base is adjustable in height.
In a possible implementation manner, the first transmission pipe penetrates through a side wall of the box body and is connected to the side wall of the box body through a plate penetrating joint.
In a possible implementation manner, the sampling tube penetrates through the side wall of the box body and is connected to the side wall of the box body through a plate penetrating joint.
In a possible implementation manner, the frame of the observation window is provided with a sealing strip.
In one possible implementation, the device for preventing tritium diffusion further comprises: a sealing plug;
the sealing plug is used for sealing the transmission through hole.
According to another aspect of the embodiments of the present disclosure, there is provided an operation method for preventing tritium diffusion, which is applied to the above-mentioned device for preventing tritium diffusion, and includes:
opening the observation window, putting the syringe for sampling into the box body, and closing the observation window;
inserting a second transmission pipe into the transmission through hole of the box body, observing through the observation window, and inserting a second quick connector of the second transmission pipe in the box body into a first quick connector of the first transmission pipe through sleeve gloves with operation through holes so that the liquid of the heavy water transmission system is injected into the storage container through the first transmission pipe and the second transmission pipe;
under the condition that the first transmission pipe is connected with the second transmission pipe, fixing the second transmission pipe at the position of the transmission through hole by using a hoop which is positioned outside the box body and close to the position of the transmission through hole;
observing through the observation window, and operating the injector to collect the liquid in the sampler through the sleeve glove with the operation through hole;
under the condition that the liquid received by the storage container reaches a preset amount, observing through an observation window, disconnecting the first quick connector from the second quick connector through the operation of the sleeve glove with the operation through hole, and taking the second connecting pipe out of the transmission through hole;
and after the second connecting pipe is taken out of the box body, opening an observation window, taking out the injector, and closing the observation window.
The beneficial effect of this disclosure lies in: this openly through box and the nuclear power plant vapor recovery system who is connected with the box, create the little negative pressure environment fast, make former quick connector plug and syringe needle sample and field operation such as pipeline opening under the air environment that exposes, obtain effective envelope, improve staff's radiation protection effect, prevent into tritium diffusion and heavy water leakage. In addition, the tritium diffusion prevention device is simple in structure, convenient to operate, good in sealing effect, low in use cost, high in implementation speed and capable of coping with various complex field working environments.
Drawings
FIG. 1 is a schematic illustration of a tritium diffusion prevention device shown according to an exemplary embodiment.
FIG. 2 is a flow diagram illustrating a method of operation to prevent tritium diffusion according to an exemplary embodiment.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
FIG. 1 is a schematic illustration of a tritium diffusion prevention device shown according to an exemplary embodiment. As shown in fig. 1, the device for preventing tritium diffusion may include: the device comprises a box body 7, a sampler 10, a first transmission pipe 6, a second transmission pipe 3 and a sampling pipe 11, wherein the sampler 10 is arranged in the box body 7;
in the present disclosure, the box body may be provided in an applicable shape, such as a rectangular parallelepiped, a cylinder, or an irregular polygonal body, as required, and the shape of the box body is not limited in the embodiments of the present disclosure.
The material of the case may have a radiation-proof function, and for example, the material of the case includes lead or a lead-containing material.
One end of the first transmission pipe 6 can be connected with a heavy water transmission system (not shown in the figure) of a nuclear power plant, the first transmission pipe 6 can penetrate through the side wall of the box body 7, the first transmission pipe 6 can be connected to the side wall of the box body 7 through a plate penetrating joint (not shown in the figure), the other end of the first transmission pipe 6 can be located in the box body 7, and the other end of the first transmission pipe 6 can be provided with a first quick joint 61.
The two ends of the sampling tube 11 can be connected with a heavy water transmission system, the part between the two ends of the sampling tube 11 can penetrate through the side wall of the box body 7 and is connected with a sampler 10 positioned in the box body 7, and the sampling tube 11 can be connected on the side wall of the box body 7 through a plate penetrating joint. The sampler 10 is provided with a cavity, and liquid of the heavy water transmission system can be injected into the cavity through the sampling tube 11 and then flows back to the heavy water transmission system from the cavity through the sampling tube 11.
In a possible implementation mode, a sampling valve can be arranged between one end of the sampling pipe flowing into the liquid and the sampler, and when sampling is needed, the sampling valve can be opened, so that the liquid of the heavy water transmission system is injected into the sampler through the sampling pipe 11, and when sampling is finished, the sampling valve can be closed, so that the liquid circulation loop of the sampling pipe and the sampler is disconnected. The sampling valve can be arranged in the box body and enveloped by the box body, so that the radioactive substances are further prevented from leaking.
One end of the second transfer tube 3 may be connected to a storage container (not shown in the figure). The side wall of the box body 7 is provided with a transmission through hole 2, and the second transmission pipe 3 can penetrate through the transmission through hole 2. For example, the tritium diffusion preventing apparatus may further include a clamp (not shown), which may be fixedly attached to an outside of the casing 7 near the transfer through-hole, and in a case where the second transfer pipe 3 passes through the transfer through-hole 2, the second transfer pipe 3 may be tightened using the clamp so that the second transfer pipe 3 is fixed in the transfer through-hole 2.
The top of the box body 7 can be provided with a ventilation interface 1, the ventilation interface 1 is connected with a steam recovery system of a nuclear power plant, and the steam recovery system of the nuclear power plant can suck air in the box body through the ventilation interface to form a negative pressure space in the box body 7. Because the steam recovery system of the nuclear power plant is relatively stable, the probability of radioactive gas leakage caused by faults of the temporary ventilation system is reduced, in addition, the gas dissipated in the box body 7 is uniformly recovered through the steam recovery system of the nuclear power plant, the gas extracted from the box body is not required to be additionally recovered, and the radioactive gas escaping from the operation can be more efficiently and safely treated.
The other end of the second transmission pipe 3 can be provided with a second quick coupling 31, and the second quick coupling 31 can be plugged with the first quick coupling 61. After the second transmission periodical is inserted into the transmission through hole 2, the first quick coupling 61 and the second quick coupling 31 can be connected in an inserting mode, liquid of the heavy water transmission system can be injected into the storage container through the first transmission pipe 6 and the second transmission pipe 3, therefore, the sealed space of the box body 7 can form an envelope at the interface of the first transmission pipe 6 and the second transmission pipe 3, the negative pressure environment of the box body 7 can effectively enable gas in the box body 7 to escape outwards, and therefore the radioactive substances are effectively prevented from being cooperated outwards. In addition, the first quick coupling 61 and the second quick coupling 31 are both open-closed, and when the connection between the first quick coupling 61 and the second quick coupling 31 is disconnected, the first quick coupling 61 can form a plug on the first transfer pipe 6, and the second quick coupling 31 can form a plug on the second transfer pipe 3, so that the radioactive materials can be effectively prevented from being diffused.
One or more operation through holes 8 are formed in the side wall of the box body 7, and the edge of each operation through hole 8 is connected with the cuff of one glove with sleeves; for example, the box 7 may be a rectangular parallelepiped, two operation through holes 8 may be formed in one side of the box 7, and an operator may insert gloves into the gloves with sleeves to operate the devices in the box 7. Therefore, the gloves with sleeves can seal the operation through holes 8 and facilitate the operation of the devices in the box body 7 by operators.
Can set up observation window 5 on the box 7, operating personnel can look over the inside condition of box 7 through observation window 5, and this observation window 5 can open and shut to make things convenient for operating personnel to take article from the box 7.
In a possible implementation mode, a cavity is arranged in the sampler, and the cavity is communicated with the sampling tube and used for storing liquid flowing out of the sampling tube; the top end of the sampler can be provided with a soft cover (the material of the soft cover can be rubber for example), and a needle of a syringe for sampling can penetrate through the soft cover to enter the cavity and suck liquid stored in the cavity.
In a possible implementation manner, the tritium diffusion preventing device further comprises a base 12, the box body 7 is arranged on the base 12, the base 12 can be of a frame structure, and in addition, the height of the base 12 can be adjusted, so that the box body 7 can adapt to different operation scenes.
In one possible implementation, the device for preventing tritium diffusion may further include: and the sealing plug can be used for sealing the transmission through hole after the second transmission pipe is taken out of the transmission through hole and the steam recovery system of the nuclear power plant is closed, so that the residual radioactive substances in the box body are further prevented from leaking.
FIG. 2 is a flow diagram illustrating a method of operation to prevent tritium diffusion according to an exemplary embodiment. The method may be applied to the above-described device for preventing tritium diffusion, and as shown in fig. 2, the method may include:
101, inserting a second transmission pipe into a transmission through hole of the box body, observing through an observation window, and inserting a second quick connector of the second transmission pipe in the box body into a first quick connector of a first transmission pipe through sleeve gloves with operation through holes so that liquid of a heavy water transmission system is injected into a storage container through the first transmission pipe and the second transmission pipe;
102, under the condition that the first transmission pipe is connected with the second transmission pipe, fixing the second transmission pipe at the position of the transmission through hole by using a hoop which is positioned outside the box body and close to the position of the transmission through hole;
103, observing through the observation window, and operating the injector to collect liquid in the sampler through the gloves with sleeves of the operation through hole;
104, under the condition that the liquid received by the storage container reaches a preset amount, observing through an observation window, disconnecting the first quick connector from the second quick connector through the operation of the sleeve glove with the operation through hole, and taking the second connecting pipe out of the transmission through hole;
and 105, after the second connecting pipe is taken out of the box body, opening an observation window, taking out the injector, and closing the observation window.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A device for preventing tritium diffusion, comprising: the device comprises a box body, a sampler, a first transmission pipe, a second transmission pipe and a sampling pipe;
one end of the first transmission pipe is connected with the heavy water transmission system, the other end of the first transmission pipe is positioned in the box body, and the other end of the first transmission pipe is provided with a first quick joint;
two ends of the sampling tube are respectively connected with the heavy water transmission system, the sampler is connected between two ends of the sampling tube position, and the sampler is positioned in the box body;
the sampler is internally provided with a cavity, and the liquid of the heavy water transmission system is injected into the cavity through the sampling tube and flows back to the heavy water transmission system from the cavity through the sampling tube;
one end of the second conveying pipe is connected with a storage container, the other end of the second conveying pipe is provided with a second quick connector, the second quick connector can be spliced with the first quick connector, and the first quick connector and the second quick connector are opened and closed at two ends;
a transmission through hole is formed in the side wall of the box body, and the second transmission pipe can penetrate through the transmission through hole;
one or more operation through holes are formed in the side wall of the box body, and the edge of each operation through hole is connected with the cuff of one glove with sleeves;
the box body is provided with an observation window, an operator can check the internal condition of the box body through the observation window, and the observation window can be opened and closed;
the top end of the box body is provided with a ventilation interface, and the ventilation interface is connected with a steam recovery system of a nuclear power plant, so that a negative pressure space is formed inside the box body.
2. A tritium diffusion prevention device according to claim 1, characterized in that it further comprises: clamping a hoop;
the hoop is arranged at the position, close to the transmission through hole, on the outer side of the box body;
the clamp can fix the second transmission pipe at the position of the transmission through hole under the condition that the second transmission pipe penetrates through the transmission through hole.
3. The tritium diffusion prevention device according to claim 1, wherein a soft cover is arranged on the top end of the sampler, and a needle of a syringe for sampling can penetrate through the soft cover to enter the cavity and suck liquid in the cavity.
4. A tritium diffusion prevention device according to claim 1, characterized in that it further comprises a base on which the box is arranged.
5. A device for the prevention of tritium diffusion according to claim 5, characterized in that the base is adjustable in height.
6. A tritium diffusion prevention device according to claim 1, characterized in that the first transfer tube passes through the side wall of the box and is connected to the side wall of the box by a through plate joint.
7. A tritium diffusion prevention device according to claim 1, characterized in that the sampling tube passes through the side wall of the box and is connected to the side wall of the box by a through-plate joint.
8. A tritium diffusion prevention device according to claim 1, characterized in that the frame of the observation window is provided with a sealing strip.
9. A tritium diffusion prevention device according to claim 1, characterized in that it further comprises: a sealing plug;
the sealing plug is used for sealing the transmission through hole.
10. A method of operating against tritium diffusion, the method being applied to a device against tritium diffusion according to any one of claims 1 to 9, the method comprising:
opening the observation window, putting the syringe for sampling into the box body, and closing the observation window;
inserting a second transmission pipe into the transmission through hole of the box body, observing through the observation window, and inserting a second quick connector of the second transmission pipe in the box body into a first quick connector of the first transmission pipe through sleeve gloves with operation through holes so that the liquid of the heavy water transmission system is injected into the storage container through the first transmission pipe and the second transmission pipe;
under the condition that the first transmission pipe is connected with the second transmission pipe, fixing the second transmission pipe at the position of the transmission through hole by using a hoop which is positioned outside the box body and close to the position of the transmission through hole;
observing through the observation window, and operating the injector to collect the liquid in the sampler through the sleeve glove with the operation through hole;
under the condition that the liquid received by the storage container reaches a preset amount, observing through an observation window, disconnecting the first quick connector from the second quick connector through the operation of the sleeve glove with the operation through hole, and taking the second connecting pipe out of the transmission through hole;
and after the second connecting pipe is taken out of the box body, opening an observation window, taking out the injector, and closing the observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317203.5A CN112326361B (en) | 2020-11-23 | 2020-11-23 | Tritium diffusion preventing device and tritium diffusion preventing operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317203.5A CN112326361B (en) | 2020-11-23 | 2020-11-23 | Tritium diffusion preventing device and tritium diffusion preventing operation method |
Publications (2)
| Publication Number | Publication Date |
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| CN112326361A true CN112326361A (en) | 2021-02-05 |
| CN112326361B CN112326361B (en) | 2024-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011317203.5A Active CN112326361B (en) | 2020-11-23 | 2020-11-23 | Tritium diffusion preventing device and tritium diffusion preventing operation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910296A (en) * | 2021-02-07 | 2022-08-16 | 核工业理化工程研究院 | Isolated sampling device and sampling method and application thereof |
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| CN104977183A (en) * | 2014-04-09 | 2015-10-14 | 上海核创制药系统工程有限公司 | Sampling box |
| CN209820887U (en) * | 2019-05-14 | 2019-12-20 | 俞广亚 | Toxic gas closed sampling device |
| US20200277562A1 (en) * | 2017-10-24 | 2020-09-03 | Testo SE & Co. KGaA | Incubator, sample vessel, kit and method for examining a sample material |
| CN111879793A (en) * | 2020-06-15 | 2020-11-03 | 中国原子能科学研究院 | Tritium gas adsorption performance experimental device and method thereof |
| CN214749102U (en) * | 2020-11-23 | 2021-11-16 | 中核核电运行管理有限公司 | Device for preventing tritium diffusion |
-
2020
- 2020-11-23 CN CN202011317203.5A patent/CN112326361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977183A (en) * | 2014-04-09 | 2015-10-14 | 上海核创制药系统工程有限公司 | Sampling box |
| US20200277562A1 (en) * | 2017-10-24 | 2020-09-03 | Testo SE & Co. KGaA | Incubator, sample vessel, kit and method for examining a sample material |
| CN209820887U (en) * | 2019-05-14 | 2019-12-20 | 俞广亚 | Toxic gas closed sampling device |
| CN111879793A (en) * | 2020-06-15 | 2020-11-03 | 中国原子能科学研究院 | Tritium gas adsorption performance experimental device and method thereof |
| CN214749102U (en) * | 2020-11-23 | 2021-11-16 | 中核核电运行管理有限公司 | Device for preventing tritium diffusion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910296A (en) * | 2021-02-07 | 2022-08-16 | 核工业理化工程研究院 | Isolated sampling device and sampling method and application thereof |
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| Publication number | Publication date |
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| CN112326361B (en) | 2024-07-16 |
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