Tritium and carbon sampling device

Abstract

The utility model relates to a tritium and carbon sampling device. The tritium and carbon sampling device comprises a shell, an absorption unit, a cooling unit, a gas inlet unit, a catalysis unit and a control unit, wherein the interior of the shell is divided into an absorption area, a cooling area, a catalysis area and a control area. And the absorption unit is arranged in the absorption area. The cooling unit is arranged in the cooling area, and the cooling unit is connected with the absorption unit. The gas inlet unit is arranged in the cooling area, and the gas inlet unit is connected with the absorption unit. The catalysis unit is arranged in the catalysis area, and the catalysis unit is connected with the absorption unit. The control unit is arranged in the control area and is electrically connected with the absorption unit, the cooling unit, the gas inlet unit and the catalysis unit. The tritium and carbon sampling device is more regular and reasonable in overall structure, the overall structure of the tritium and carbon sampling device is simplified, and installation and maintenance of the tritium and carbon sampling device are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear reactor radioactivity monitoring, and in particular to a tritium carbon sampling device. Background Art

[0002] Tritium and carbon-14 are two radionuclides with high attention released into the environment by nuclear equipment. Among them, tritium has a strong isotope exchange capacity and a half-life of 12.6 years. Most of the tritium released into the environment will eventually form tritium water-water vapor and enter the water cycle together with ordinary water, so it is easy for humans to be radiated. Carbon-14 participates in the global carbon cycle and causes global warming. Therefore, in nuclear reaction work, it is of great significance to monitor the content of tritium and carbon in the exhaust gas. Before monitoring the content of tritium and carbon in the gas, it is usually necessary to sample the tritium and carbon in the gas through a tritium-carbon sampling device. However, in the related art, the structure of the tritium-carbon sampling device is relatively complex, and it is inconvenient to install and maintain. Before monitoring the content of tritium and carbon in the gas, it is usually necessary to sample the tritium and carbon in the gas through a tritium-carbon sampling device. However, in the related art, the structure of the tritium-carbon sampling device is relatively complex, and it is inconvenient to install and maintain. Summary of the invention

[0003] Based on this, it is necessary to provide a tritium carbon sampling device. The tritium carbon sampling device has a regular structure, a reasonable layout, and is easy to install and maintain.

[0004] A tritium carbon sampling device, comprising:

[0005] A shell, wherein the shell is divided into an absorption zone, a cooling zone, a catalytic zone and a control zone;

[0006] an absorption unit, wherein the absorption unit is arranged in the absorption zone;

[0007] A cooling unit, which is disposed in the cooling zone and connected to the absorption unit;

[0008] An air intake unit, the air intake unit is arranged in the cooling zone and connected to the absorption unit;

[0009] A catalytic unit, wherein the catalytic unit is arranged in the catalytic zone and connected to the absorption unit.

[0010] A control unit is arranged in a control area, and the control unit is electrically connected to the absorption unit, the cooling unit, the air intake unit, and the catalytic unit.

[0011] The technical solution is further described below:

[0012] In one embodiment, the absorption unit includes an absorption bottle and a bottle cap that opens and closes with the absorption bottle. The absorption area is also provided with a mounting frame, a fixing frame and a lifting mechanism. The mounting frame is arranged opposite to the fixing frame. The mounting frame is provided with a mounting groove for accommodating the absorption bottle. The fixing frame is provided with a fixing position for fixing the bottle cap. The lifting mechanism is connected to the fixing frame, and the lifting mechanism is used to drive the fixing frame to move closer to or away from the mounting frame.

[0013] In one embodiment, the cooling unit includes a first cooling module, which includes a first liquid storage tank, a first pump body, a refrigeration module and a first cooling pipe. The first liquid storage tank is used to store coolant, one end of the first cooling pipe is connected to the liquid outlet of the first liquid storage tank, and the other end of the first cooling pipe is connected to the liquid inlet of the first liquid storage tank after passing through the first pump body, the cold end of the refrigeration module and the absorption unit.

[0014] In one embodiment, the cooling unit also includes a second cooling module, which includes a second liquid storage tank, a second pump body, a heat sink, a fan and a second cooling pipe. The second liquid storage tank is used to store coolant. One end of the second cooling pipe is connected to the liquid outlet of the second liquid storage tank, and the other end of the second cooling pipe is connected to the liquid inlet of the second liquid storage tank after passing through the second pump body, the hot end of the refrigeration module and the heat sink. The fan is connected to the heat sink, and the air outlet side of the fan faces the heat sink.

[0015] In one embodiment, the cooling zone is adjacent to the catalytic zone, a first partition is provided between the cooling zone and the catalytic zone, a ventilation hole connecting the cooling zone and the catalytic zone is opened on the first partition, the heat sink is arranged on the first partition, and the air outlet side of the fan faces the ventilation hole.

[0016] In one embodiment, an air inlet hole is formed on the side wall opposite to the first partition in the cooling zone, an air outlet hole is formed on the side wall opposite to the first partition in the catalytic zone, the air inlet side of the fan faces the air inlet hole, and the air outlet side of the fan faces the air outlet hole.

[0017] In one embodiment, the absorption unit includes a front-end absorption bottle and a rear-end absorption bottle, and the catalytic unit includes an air inlet pipe, an air outlet pipe and a catalytic oxidation module, one end of the air inlet pipe is connected to the front-end absorption bottle, the other end of the air inlet pipe is connected to the air inlet of the catalytic oxidation module, one end of the air outlet pipe is connected to the air outlet of the catalytic oxidation module, and the other end of the air outlet pipe is connected to the rear-end absorption bottle.

[0018] In one embodiment, a suspension is provided on the top wall of the catalytic zone, the catalytic oxidation module is suspended on the suspension, the air inlet is provided at the bottom end of the catalytic oxidation module, and the air outlet is provided at the top end of the catalytic oxidation module.

[0019] In one embodiment, the catalytic oxidation module is disposed on a side of the catalytic zone close to the air outlet.

[0020] In one embodiment, the gas outlet pipe has an inlet end connected to the catalytic oxidation module and an outlet end connected to the rear absorption bottle;

[0021] Among them, the air outlet pipe forms a first coil portion between the air inlet end and the air outlet end, and the first coil portion is arranged opposite to the air outlet side of the fan; and / or the air outlet pipe forms a second coil portion between the air inlet end and the air outlet end, and the second coil portion is arranged opposite to the air inlet side of the fan.

[0022] In the above tritium carbon sampling device, by dividing the shell into an absorption zone, a cooling zone, a catalytic zone and a control zone, and arranging the absorption unit in the absorption zone, the cooling unit and the air intake unit in the cooling zone, the catalytic unit in the catalytic zone, and the control unit in the control zone, it is realized that each functional unit is modularly installed in different partitions, making the overall structure of the tritium carbon sampling device more regular and rational, simplifying the overall structure of the tritium carbon sampling device, and facilitating the installation and maintenance of the tritium carbon sampling device. At the same time, the catalytic unit is independently arranged in the catalytic zone, which can reduce the influence of the heat emitted by the catalytic unit when it is working on other functional units, such as the cooling unit or the control unit, and at the same time improves safety and effectively avoids the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0026] Figure 1Schematic diagram of the structure of a tritium carbon sampling device according to an embodiment.

[0027] Figure 2 for Figure 1 Schematic diagram of the structure of the tritium carbon sampling device with the top cover hidden.

[0028] Figure 3 for Figure 2 A schematic diagram of the structure of the tritium carbon sampling device shown in another perspective.

[0029] Figure 4 for Figure 2 Rear view of the tritium carbon sampling device shown in .

[0030] Figure 5 It is a schematic structural diagram of an absorption unit according to an embodiment.

[0031] Figure 6 It is a schematic structural diagram of a cooling unit according to an embodiment.

[0032] Figure 7 for Figure 6 Side view of the cooling unit shown in .

[0033] Figure 8 Schematic diagram of the structure of a catalytic unit according to an embodiment.

[0034] Description of reference numerals:

[0035] 10. Shell; 11. Absorption zone; 12. Cooling zone; 13. Catalytic zone; 14. Control zone; 15. First baffle; 151. Ventilation hole; 161. Air inlet hole; 162. Air outlet hole; 17. Second baffle; 20. Absorption unit; 211. Front absorption bottle; 212. Rear absorption bottle; 22. Bottle cap; 23. Mounting frame; 231. Mounting slot; 24. Fixing frame; 25. Lifting mechanism; 30. Cooling unit; 3 11. First liquid storage tank; 312. Refrigeration module; 313. First cooling pipe; 314. First pump body; 321. Second liquid storage tank; 322. Heat sink; 323. Fan; 324. Second pump body; 325. Second cooling pipe; 40. Catalytic unit; 41. Catalytic oxidation module; 42. Exhaust pipe; 421. First coil section; 422. Second coil section; 43. Intake pipe; 44. Suspension; 50. Intake unit. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0042] See also Figure 1 as well as Figure 2 The tritium carbon sampling device of one embodiment includes a housing 10, an absorption unit 20, a cooling unit 30, an air intake unit 50, a catalytic unit 40 and a control unit, wherein the housing 10 is divided into an absorption zone 11, a cooling zone 12, a catalytic zone 13 and a control zone 14. Specifically, in one embodiment, the housing 10 is provided with a first partition plate 15 and a second partition plate 17 intersecting with each other, so as to divide the space in the housing 10 into the absorption zone 11, the cooling zone 12, the catalytic zone 13 and the control zone 14 distributed front to back and left to right, wherein the absorption zone 11 is a semi-open area, and the remaining cooling zone 12, the catalytic zone 13 and the control zone 14 are closed areas.

[0043] The absorption unit 20 is disposed in the absorption area 11 . In one embodiment, the absorption unit 20 is used to contain absorption liquid to absorb tritium and carbon in the gas entering the absorption unit 20 .

[0044] The cooling unit 30 is disposed in the cooling zone 12, and the cooling unit 30 is connected to the absorption unit 20. In one embodiment, the cooling unit 30 is used to cool the absorption liquid in the absorption unit 20 to ensure the absorption effect of the cooling liquid.

[0045] The air intake unit 50 is disposed in the cooling zone 12, and the air intake unit 50 is connected to the absorption unit 20. In one embodiment, the air intake unit 50 is used to filter the gas and pass the gas into the absorption unit 20 to remove impurities in the gas.

[0046] The catalytic unit 40 is disposed in the catalytic zone 13 and is connected to the absorption unit 20. In one embodiment, the catalytic unit 40 is used to catalytically oxidize the gas entering the absorption unit 20 to decompose tritium and carbon compounds in the gas that cannot be directly absorbed by the absorption liquid into tritium water and carbon dioxide that are easily absorbed by the absorption liquid.

[0047] The control unit (not shown) is disposed in the control area 14 , and is electrically connected to the absorption unit 20 , the cooling unit 30 , the air intake unit 50 , and the catalytic unit 40 . The control unit is used to control the operation of the cooling unit 30 , the air intake unit 50 , and the catalytic unit 40 .

[0048] Specifically, during operation, the air intake unit 50 first inhales the gas to be tested, and then filters the gas before passing it into the absorption unit 20. The absorption liquid in the absorption unit 20 can absorb and sample the tritium and carbon in the gas. When the absorption unit 20 absorbs tritium and carbon, the cooling unit 30 continues to cool the absorption liquid in the absorption unit 20 to ensure the absorption effect of the cooling liquid. At the same time, the catalytic unit 40 catalytically oxidizes the gas entering the absorption unit 20 to decompose the tritium and carbon compounds in the gas that cannot be directly absorbed by the absorption liquid into tritium water and carbon dioxide that are easily absorbed by the absorption liquid. Ensure that the absorption unit 20 can completely absorb the tritium and carbon elements in the gas, and finally the absorption unit 20 discharges the absorbed gas to complete the tritium carbon sampling.

[0049] In the above tritium carbon sampling device, by dividing the shell 10 into an absorption zone 11, a cooling zone 12, a catalytic zone 13 and a control zone 14, and arranging the absorption unit 20 in the absorption zone 11, the cooling unit 30 and the air intake unit 50 in the cooling zone 12, the catalytic unit 40 in the catalytic zone 13, and the control unit in the control zone 14, it is realized that each functional unit is modularly installed in different partitions, making the overall structure of the tritium carbon sampling device more regular and rational, simplifying the overall structure of the tritium carbon sampling device, and facilitating the installation and maintenance of the tritium carbon sampling device. At the same time, the catalytic unit 40 is independently arranged in the catalytic zone 13, which can reduce the influence of the heat emitted by the catalytic unit 40 when working on other functional units, such as the cooling unit 30 or the control unit, and at the same time improves safety and effectively avoids the occurrence of safety accidents.

[0050] See also Figure 5The absorption unit 20 includes an absorption bottle and a bottle cap 22 that opens and closes with the absorption bottle. Specifically, the absorption bottle is used to hold absorption liquid to absorb tritium and carbon in the gas. Preferably, the number of absorption bottles and bottle caps 22 are both multiple, and the number of the two is the same. Further, in one embodiment, the multiple absorption bottles include a front absorption bottle 211 and a rear absorption bottle 212, and the catalytic unit 40 connects the front absorption bottle 211 and the rear absorption bottle 212. For example, in the present embodiment, there are four absorption bottles, of which the first two absorption bottles are the front absorption bottles 211, and the last two absorption bottles are the rear absorption bottles 212. During operation, the air intake unit 50 first passes the filtered gas into the front-end absorption bottle 211, which directly absorbs the tritium water and carbon dioxide in the gas. The gas then enters the catalytic unit 40, which decomposes the tritium and carbon compounds in the gas that cannot be directly absorbed by the front-end absorption bottle 211 into tritium water and carbon dioxide, and then passes them into the rear-end absorption bottle 212. The rear-end absorption bottle 212 absorbs the tritium water and carbon dioxide in the gas after catalytic oxidation by the catalytic unit 40 to complete sampling.

[0051] Furthermore, the absorption area 11 is also provided with a mounting frame 23, a fixing frame 24 and a lifting mechanism 25. The mounting frame 23 is arranged opposite to the fixing frame 24. The mounting frame 23 is provided with a mounting groove 231 for accommodating the absorption bottle. The fixing frame 24 is provided with a fixing position for fixing the bottle cap 22. The lifting mechanism 25 is connected to the fixing frame 24, and the lifting mechanism 25 is used to drive the fixing frame 24 to move close to or away from the mounting frame 23. In this way, when working, the absorption bottle is installed in the mounting groove 231, and the bottle cap 22 is fixed in the fixed position. The lifting mechanism 25 drives the fixing frame 24 to move close to the mounting frame 23, so that the bottle cap 22 can be automatically covered on the absorption bottle, thereby avoiding gas leakage and reducing the evaporation of the absorption liquid. When the absorption bottle needs to be taken and placed, the lifting mechanism 25 is controlled to drive the fixing frame 24 to move away from the mounting frame 23, so that the absorption bottle is separated from the bottle cap 22, and then the absorption bottle can be replaced. In this way, the taking and placing of the absorption bottle can be made more convenient and quick, and the user experience is effectively improved. Preferably, in one embodiment, the lifting mechanism 25 can be selectively configured as a linear module, a cylinder, a screw slider mechanism or a gear rack mechanism, etc., which is not limited here.

[0052] See also Figure 6 as well as Figure 7In one embodiment, the cooling unit 30 includes a first cooling module, and the first cooling module is used to cool the absorption liquid in the absorption bottle. Specifically, in one embodiment, the first cooling module includes a first liquid storage tank 311, a first pump body 314, a refrigeration module 312 and a first cooling pipe 313. The first liquid storage tank 311 is used to store cooling liquid, one end of the first cooling pipe 313 is connected to the liquid outlet of the first liquid storage tank 311, and the other end of the first cooling pipe 313 is connected to the liquid inlet of the first liquid storage tank 311 after passing through the first pump body 314, the cold end of the refrigeration module 312 and the absorption unit 20. Specifically, during operation, the first pump body 314 pumps the coolant from the liquid outlet of the first liquid storage tank 311 to the first cooling pipe 313, and then the coolant passes through the cold end of the refrigeration module 312 along the first cooling pipe 313. The cold end of the refrigeration module 312 releases cold energy to exchange heat with the coolant to reduce the temperature of the coolant. Then, the coolant continues to flow through the inside of the absorption bottle along the first cooling pipe 313, so that the cooled coolant exchanges heat with the absorption liquid inside the absorption bottle to cool the absorption liquid. Finally, the coolant flows back to the first liquid storage tank 311 along the first cooling pipe 313, and the cycle is repeated to achieve continuous cooling of the absorption liquid. Preferably, see Figure 7 The first pump body 314, the refrigeration module 312 and the first liquid storage tank 311 are stacked in sequence from bottom to top in the cooling zone 12, so that the overall structure of the first cooling module is more compact, which is convenient for centralized pipe connection and modular assembly. Preferably, the refrigeration module 312 can be a TEC (Thermo Electric Cooler, semiconductor refrigerator).

[0053] Continue to see Figure 6 as well as Figure 7Optionally, in one embodiment, the cooling unit 30 also includes a second cooling module, which is used to dissipate heat from the hot end of the refrigeration module 312. The second cooling module includes a second liquid storage tank 321, a second pump body 324, a heat sink 322, a fan 323 and a second cooling pipe 325. The second liquid storage tank 321 is also used to store coolant. One end of the second cooling pipe 325 is connected to the liquid outlet of the second liquid storage tank 321, and the other end of the second cooling pipe 325 is connected to the liquid inlet of the second liquid storage tank 321 after passing through the second pump body 324, the hot end of the refrigeration module 312 and the heat sink 322. The fan 323 is connected to the heat sink 322, and the air outlet side of the fan 323 faces the heat sink 322. During operation, the second pump body 324 pumps the coolant from the liquid outlet of the second liquid storage tank 321 to the second cooling pipe 325, and then the coolant passes through the hot end of the refrigeration module 312 along the second cooling pipe 325, and the coolant exchanges heat with the hot end of the refrigeration module 312 to reduce the temperature of the hot end of the refrigeration module 312, thereby ensuring the safe operation of the refrigeration module 312. Then, the high-temperature coolant after heat exchange continues to flow through the heat sink 322 along the second cooling pipe 325, and the fan 323 blows air to the heat sink 322 to reduce the temperature of the coolant flowing through the heat sink 322. Finally, the cooled coolant flows back to the second liquid storage tank 321 along the second cooling pipe 325, and the cycle is circulated to achieve continuous heat dissipation of the hot end of the refrigeration module 312.

[0054] See also Figure 3 as well as Figure 4 In one embodiment, the cooling zone 12 and the catalytic zone 13 are adjacently arranged, a first partition 15 is arranged between the cooling zone 12 and the catalytic zone 13, a ventilation hole 151 is opened on the first partition 15 to connect the cooling zone 12 and the catalytic zone 13, a heat sink 322 is arranged on the first partition 15, and the air outlet side of the fan 323 faces the ventilation hole 151. In this way, the fan 323 can not only dissipate heat from the heat sink 322, but also dissipate heat from the catalytic unit 40 in the catalytic zone 13 through the ventilation hole 151.

[0055] Further, see Figure 3 , an air inlet hole 161 is provided on the side wall of the cooling zone 12 opposite to the first partition 15, and an air outlet hole 162 is provided on the side wall of the catalytic zone 13 opposite to the first partition 15, the air inlet side of the fan 323 faces the air inlet hole 161, and the air outlet side of the fan 323 faces the air outlet hole 162. In this way, under the action of the fan 323, the air flow can enter the cooling zone 12 from the air inlet hole 161, then enter the catalytic zone 13 through the ventilation hole 151, and finally flow out from the air outlet hole 162, thereby strengthening the air flow in the cooling zone 12 and the catalytic zone 13, and the air flow can cool the environment near the air intake unit 50, the cooling unit 30, and the catalytic unit 40 in turn. Preferably, the number of the air inlet hole 161 and the air outlet hole 162 are both multiple, so as to ensure smoother air flow.

[0056] Alternatively, see Figure 8 The catalytic unit 40 includes an inlet pipe 43, an outlet pipe 42, and a catalytic oxidation module 41. One end of the inlet pipe 43 is connected to the front-end absorption bottle, and the other end of the inlet pipe 43 is connected to the air inlet of the catalytic oxidation module 41. One end of the outlet pipe 42 is connected to the air outlet of the catalytic oxidation module 41, and the other end of the outlet pipe 42 is connected to the rear-end absorption bottle 212. In this way, the gas treated by the front-end absorption bottle 211 can enter the catalytic oxidation module 41 through the inlet pipe 43. The catalytic oxidation module 41 decomposes the tritium and carbon compounds in the gas that cannot be directly absorbed by the front-end absorption bottle 211 into tritium water and carbon dioxide, and then passes the catalytically oxidized gas into the rear-end absorption bottle 212 through the outlet pipe 42 for absorption by the rear-end absorption bottle 212.

[0057] Further, see Figure 4 as well as Figure 8 The top wall of the catalytic zone 13 is provided with a suspension 44, the catalytic oxidation module 41 is suspended on the suspension 44, the air inlet is provided at the bottom end of the catalytic oxidation module 41, and the air outlet is provided at the top end of the catalytic oxidation module 41. By suspending the catalytic oxidation module 41, the heat dissipation effect of the catalytic oxidation module 41 can be enhanced.

[0058] See also Figure 4 as well as Figure 8 Optionally, in one embodiment, the outlet pipe 42 has an air inlet end connected to the catalytic oxidation module 41 and an air outlet end connected to the rear-stage absorption bottle 212; wherein the outlet pipe 42 is coiled between the air inlet end and the air outlet end to form a first coil portion 421, and the first coil portion 421 is arranged opposite to the air outlet side of the fan 323, so that the gas flows out from the outlet pipe 42 after being heated and catalyzed by the catalytic oxidation module 41. When passing through the first coil portion 421, the fan 323 can also cool the catalytically oxidized gas, so that the gas is cooled to room temperature before being passed into the rear-stage absorption bottle 212, thereby ensuring the absorption effect of the rear-stage absorption bottle 212.

[0059] Furthermore, in one embodiment, the outlet pipe 42 is further coiled between the air inlet end and the air outlet end to form a second coil portion 422, and the second coil portion 422 is arranged opposite to the air inlet side of the fan 323, so that the gas can pass through the second coil portion 422 after passing through the first coil portion 421, and the fan 323 can continue to cool the gas flowing through the second coil portion 422 to ensure that the gas after catalytic oxidation is reduced to room temperature. It is worth noting that in some embodiments, the outlet pipe 42 can also be provided with a first coil portion 421 or a second coil portion 422 separately.

[0060] See also Figure 4In one embodiment, the catalytic oxidation module 41 is disposed on a side of the catalytic zone 13 close to the air outlet 162. Specifically, the airflow on the side of the catalytic zone 13 close to the air outlet 162 is faster, so the surrounding temperature is lower. By disposing the catalytic oxidation module 41 on the side of the catalytic zone 13 close to the air outlet 162, the heat dissipation effect of the catalytic oxidation module 41 can be improved, and at the same time, the catalytic oxidation module 41 can be kept away from the heat sink 322 and the first coil part 421, thereby reducing the influence of the heat dissipated by the heat sink 322 and the first coil part 421 on the catalytic oxidation module 41.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A tritium carbon sampling device, characterized in that: include: A shell, wherein the shell is divided into an absorption zone, a cooling zone, a catalytic zone and a control zone; an absorption unit, wherein the absorption unit is arranged in the absorption zone; A cooling unit, which is disposed in the cooling zone and connected to the absorption unit; An air intake unit, the air intake unit is arranged in the cooling zone and connected to the absorption unit; A catalytic unit, wherein the catalytic unit is arranged in the catalytic zone and connected to the absorption unit. A control unit is arranged in a control area, and the control unit is electrically connected to the absorption unit, the cooling unit, the air intake unit, and the catalytic unit.

2. The tritium carbon sampling device according to claim 1, characterized in that: The absorption unit includes an absorption bottle and a bottle cap that opens and closes with the absorption bottle. The absorption area is also provided with a mounting frame, a fixing frame and a lifting mechanism. The mounting frame is arranged opposite to the fixing frame. The mounting frame is provided with a mounting groove for accommodating the absorption bottle. The fixing frame is provided with a fixing position for fixing the bottle cap. The lifting mechanism is connected to the fixing frame, and the lifting mechanism is used to drive the fixing frame to move closer to or away from the mounting frame.

3. The tritium carbon sampling device according to claim 1, characterized in that: The cooling unit includes a first cooling module, which includes a first liquid storage tank, a first pump body, a refrigeration module and a first cooling pipe. The first liquid storage tank is used to store coolant. One end of the first cooling pipe is connected to the liquid outlet of the first liquid storage tank, and the other end of the first cooling pipe is connected to the liquid inlet of the first liquid storage tank after passing through the first pump body, the cold end of the refrigeration module and the absorption unit.

4. The tritium carbon sampling device according to claim 3, characterized in that: The cooling unit also includes a second cooling module, which includes a second liquid storage tank, a second pump body, a heat sink, a fan and a second cooling pipe. The second liquid storage tank is used to store coolant. One end of the second cooling pipe is connected to the liquid outlet of the second liquid storage tank, and the other end of the second cooling pipe is connected to the liquid inlet of the second liquid storage tank after passing through the second pump body, the hot end of the refrigeration module and the heat sink. The fan is connected to the heat sink, and the air outlet side of the fan faces the heat sink.

5. The tritium carbon sampling device according to claim 4, characterized in that: The cooling zone is adjacent to the catalytic zone, a first partition is provided between the cooling zone and the catalytic zone, a ventilation hole connecting the cooling zone and the catalytic zone is opened on the first partition, the heat sink is arranged on the first partition, and the air outlet side of the fan faces the ventilation hole.

6. The tritium carbon sampling device according to claim 5, characterized in that: An air inlet hole is provided on the side wall opposite to the first partition in the cooling zone, an air outlet hole is provided on the side wall opposite to the first partition in the catalytic zone, the air inlet side of the fan faces the air inlet hole, and the air outlet side of the fan faces the air outlet hole.

7. The tritium carbon sampling device according to claim 6, characterized in that: The absorption unit includes a front-end absorption bottle and a rear-end absorption bottle, and the catalytic unit includes an air inlet pipe, an air outlet pipe and a catalytic oxidation module, one end of the air inlet pipe is connected to the front-end absorption bottle, the other end of the air inlet pipe is connected to the air inlet of the catalytic oxidation module, one end of the air outlet pipe is connected to the air outlet of the catalytic oxidation module, and the other end of the air outlet pipe is connected to the rear-end absorption bottle.

8. The tritium carbon sampling device according to claim 7, characterized in that: The top wall of the catalytic zone is provided with a suspension, the catalytic oxidation module is suspended on the suspension, the air inlet is provided at the bottom end of the catalytic oxidation module, and the air outlet is provided at the top end of the catalytic oxidation module.

9. The tritium carbon sampling device according to claim 8, characterized in that: The catalytic oxidation module is arranged on a side of the catalytic zone close to the air outlet.

10. The tritium carbon sampling device according to claim 8, characterized in that: The gas outlet pipe has an inlet end connected to the catalytic oxidation module and an outlet end connected to the rear absorption bottle; Among them, the air outlet pipe forms a first coil portion between the air inlet end and the air outlet end, and the first coil portion is arranged opposite to the air outlet side of the fan; and / or the air outlet pipe forms a second coil portion between the air inlet end and the air outlet end, and the second coil portion is arranged opposite to the air inlet side of the fan.

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