Tritium and carbon sampling system

Abstract

The utility model relates to a tritium and carbon sampling system. The tritium and carbon sampling system comprises a tritium and carbon sampling device and a temperature acquisition device, the temperature acquisition device comprises a first temperature sensor, and the first temperature sensor is used for detecting the environment temperature of the position where the tritium and carbon sampling device is located. The tritium and carbon sampling device comprises a cooling unit, an absorption unit and a control unit, the cooling unit is connected with the absorption unit, and the control unit is electrically connected with the cooling unit and the first temperature sensor. When the environment temperature detected by the first temperature sensor is larger than a first preset temperature, the first temperature sensor feeds back temperature information to the control unit, the control unit sends cooling information to the cooling unit, the cooling unit cools the cooling liquid and supplies the cooling liquid to the absorption unit, and the cooling liquid reduces the temperature of the absorption liquid. The temperature of the absorption liquid is kept in a preset temperature range. Under the action of the cooling liquid, the cooling function of the absorption unit is realized, and the reliability of the sampling result of the tritium and carbon sampling device is ensured.

Description

Technical Field

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

[0002] In nuclear power plants, it is often necessary to set up a large number of tritium-carbon sampling devices to sample tritium and carbon 14 in the gas in order to monitor the content of tritium and carbon 14 in the exhaust gas during the nuclear reaction.

[0003] The absorption unit of the tritium carbon sampling device absorbs tritium-containing HTO and 14 When CO2 is used, the temperature of the absorption liquid in the absorption unit needs to be controlled to avoid excessively high temperature of the absorption liquid, which will affect 14 The solubility of CO2 in the absorption liquid, etc. However, the common tritium carbon sampling device cannot effectively control the temperature of the absorption liquid of the tritium carbon sampling device when the ambient temperature changes greatly, which affects the reliability of the tritium carbon sampling results. Summary of the invention

[0004] Based on this, it is necessary to provide a tritium carbon sampling system to ensure the reliability of tritium carbon 14 sampling results.

[0005] A tritium carbon sampling system, comprising a tritium carbon sampling device and a temperature collection device;

[0006] The temperature acquisition device comprises a first temperature sensor, and the first temperature sensor is used to detect the ambient temperature of the location where the tritium carbon sampling device is located;

[0007] The tritium carbon sampling device includes a cooling unit, an absorption unit and a control unit. The cooling unit is connected to the absorption unit. The control unit is electrically connected to the first temperature sensor and the cooling unit. The control unit is used to control the cooling unit to cool the coolant and transport the coolant to the absorption unit when the ambient temperature is greater than a first preset temperature.

[0008] In one embodiment, the cooling unit is provided with a first liquid outlet, the absorption unit is provided with a first liquid inlet, and the first liquid outlet is connected to the first liquid inlet; the temperature acquisition device also includes a second temperature sensor, the second temperature sensor is provided at the first liquid outlet, or the second temperature sensor is provided in a pipeline between the first liquid outlet and the first liquid inlet, and the second temperature sensor is used to detect the temperature of the coolant flowing out through the first liquid outlet; the control unit is electrically connected to the second temperature sensor, and the control unit is used to control the cooling unit to adjust the cooling temperature according to the temperature of the coolant flowing out through the first liquid outlet.

[0009] In one embodiment, the tritium carbon sampling system further includes an alarm, and the alarm is electrically connected to the control unit, and the control unit is used to control the alarm to operate when the temperature of the coolant flowing out through the first liquid outlet is greater than a second preset temperature.

[0010] In one embodiment, the cooling unit includes a first liquid storage tank, a first pump body, a cooling body and a first circulation pipe. The first liquid storage tank is used to store coolant. The first liquid storage tank is provided with a second liquid inlet and a second liquid outlet. One end of the first circulation pipe is connected to the second liquid outlet, and the other end of the first circulation pipe is connected to the second liquid inlet after passing through the first pump body, the low-temperature side of the cooling body and the absorption unit to form a first cooling circulation loop.

[0011] In one embodiment, the cooling body is a semiconductor cooler.

[0012] In one embodiment, the cooling unit also includes a second liquid storage tank, a second pump body, a heat sink, a fan and a second circulation pipe. The second liquid storage tank is also used to store coolant. The second liquid storage tank is provided with a third liquid inlet and a third liquid outlet. One end of the second circulation pipe is connected to the third liquid outlet, and the other end of the second circulation pipe is connected to the third liquid inlet after passing through the second pump body, the high temperature side of the cooling body and the heat sink to form a second cooling circulation loop. The fan is connected to the heat sink, and the air outlet side of the fan faces the heat sink.

[0013] In one embodiment, the first liquid storage tank and / or the second liquid storage tank is provided with a liquid level switch; the control unit is electrically connected to the liquid level switch, and the control unit is used to control the alarm to operate when the liquid level of the coolant in the first liquid storage tank and / or the second liquid storage tank is lower than a preset liquid level.

[0014] In one embodiment, the first cooling circulation loop and / or the second cooling circulation loop is provided with a pressure sensor, and the pressure sensor is electrically connected to the control unit, and the control unit is used to control the alarm to operate when the pressure of the first cooling circulation loop and / or the second cooling circulation loop is greater than a preset pressure value.

[0015] In one of the embodiments, the tritium carbon sampling device further comprises a catalytic unit, wherein the catalytic unit is connected to the absorption unit, and the catalytic unit is used for catalytically oxidizing the gas in the absorption unit.

[0016] In one embodiment, the absorption unit includes an absorption bottle, which is used to hold absorption liquid; the absorption bottles are provided in plurality, and the plurality of absorption bottles include a front absorption bottle and a rear absorption bottle, and the catalytic unit connects the front absorption bottle with the rear absorption bottle; the rear absorption bottle is provided with a fourth liquid outlet for discharging coolant, and the fourth liquid outlet is provided with a liquid outlet pipe; the temperature collection device also includes a third temperature sensor, and the third temperature sensor is provided at the liquid outlet or the liquid outlet pipe.

[0017] In the above tritium carbon sampling system, the first temperature sensor detects the ambient temperature of the location of the tritium carbon sampling device in real time. When the ambient temperature detected by the first temperature sensor is greater than the first preset temperature, the first temperature sensor feeds back the temperature information to the control unit, and the control unit sends cooling information to the cooling unit. The cooling unit cools the coolant and supplies the coolant to the absorption unit. The coolant reduces the temperature of the absorption liquid so that the temperature of the absorption liquid is maintained within the preset temperature range. Under the action of the coolant, the cooling function of the absorption unit is realized, and the reliability of the sampling result of the tritium carbon sampling device is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a simplified structural diagram of a tritium carbon sampling system according to an embodiment of the present application.

[0019] Figure 2 Schematic diagram of the structure of a tritium carbon sampling device according to an embodiment of the present application.

[0020] Figure 3 It is a schematic structural diagram of a cooling unit according to an embodiment of the present application.

[0021] Figure 4 Schematic diagram of the structure of a sampling unit according to an embodiment of the present application.

[0022] Description of Figure Numbers:

[0023] 10. Tritium carbon sampling device; 11. Cooling unit; 111. First liquid storage tank; 112. Cooling body; 113. First circulation pipe; 114. First pump body; 115. Second liquid storage tank; 116. Heat sink; 117. Fan; 119. Second circulation pipe; 12. Absorption unit; 121. Front absorption bottle; 122. Rear absorption bottle; 123. Bottle cap; 13. Catalytic unit; 20. Temperature acquisition device; 22. Second temperature sensor; 30. Pressure sensor. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 A tritium carbon sampling system provided in one embodiment of the present application includes a tritium carbon sampling device 10 and a temperature collection device 20 .

[0026] The temperature collection device 20 includes a first temperature sensor, which is disposed in the environment where the tritium carbon sampling device 10 is located, and is used to detect the ambient temperature of the location where the tritium carbon sampling device 10 is located. For example, the first temperature sensor is disposed on the side of the tritium carbon sampling device 10.

[0027] See also Figure 1 and Figure 2 The tritium carbon sampling device 10 includes a cooling unit 11, an absorption unit 12 and a control unit. The cooling unit 11 is connected to the absorption unit 12, and the absorption unit 12 is used to contain an absorption liquid, and the absorption liquid absorbs tritium and carbon 14 in the gas entering the absorption unit 12. The cooling unit 11 is used to cool the absorption liquid in the absorption unit 12 to ensure the absorption effect of the absorption liquid.

[0028] The control unit is electrically connected to the first temperature sensor and the cooling unit 11 , and is used for controlling the cooling unit 11 to cool the coolant and transport the absorption liquid to the absorption unit 12 when the ambient temperature is greater than the first preset temperature.

[0029] It should be noted that the first preset temperature can be set according to actual conditions. For example, in this embodiment, the first preset temperature is 15° C. Of course, in other embodiments, the first preset temperature can also be other values, which is not limited thereto.

[0030] In the above-mentioned tritium carbon sampling system, the first temperature sensor detects the ambient temperature of the location of the tritium carbon sampling device 10 in real time. When the ambient temperature detected by the first temperature sensor is greater than the first preset temperature, the first temperature sensor feeds back the first preset temperature to the control unit, and the control unit sends cooling information to the cooling unit 11. The cooling unit 11 cools the coolant so that the temperature of the coolant is maintained between 0°C and 5°C. The cooled coolant is supplied to the absorption unit 12. The coolant lowers the temperature of the absorption liquid so that the temperature of the absorption liquid is maintained within the preset temperature range, for example, the temperature of the absorption liquid is maintained between 10°C and 15°C. In this way, under the action of the coolant, the cooling function of the absorption unit 12 is realized, and the reliability of the sampling result of the tritium carbon sampling device 10 is ensured.

[0031] In one embodiment, the cooling unit 11 is provided with a first liquid outlet, and the absorption unit 12 is provided with a first liquid inlet, and the first liquid outlet is connected to the first liquid inlet. In this way, after the cooling unit 11 cools the coolant, the coolant enters the absorption unit 12 through the first liquid outlet and the first liquid inlet to cool the absorption liquid in the absorption unit 12, thereby ensuring the absorption effect of the absorption liquid.

[0032] Further, see Figure 1 The temperature acquisition device 20 further includes a second temperature sensor 22, which is disposed at the first liquid outlet, or the second temperature sensor 22 is disposed in a pipeline between the first liquid outlet and the first liquid inlet, and the second temperature sensor 22 is used to detect the temperature of the coolant flowing out of the first liquid outlet. The control unit is electrically connected to the second temperature sensor 22, and the control unit is used to control the cooling unit 11 to adjust the cooling temperature according to the temperature of the coolant flowing out of the first liquid outlet.

[0033] During operation, the second temperature sensor 22 detects the temperature of the coolant flowing out through the first liquid outlet. If the second temperature sensor 22 detects that the temperature of the coolant flowing out through the first liquid outlet increases, the temperature of the coolant flowing out through the first liquid outlet is fed back to the control unit. The control unit controls the cooling unit 11 to adjust the cooling temperature according to the temperature fluctuation of the coolant, ensuring that the tritium carbon sampling device 10 can sample within a predetermined temperature range. Specifically, if the temperature of the coolant flowing out through the first liquid outlet increases, the control unit controls the cooling unit 11 to increase the cooling amount; if the temperature of the coolant flowing out through the first liquid outlet decreases, the control unit controls the cooling unit 11 to reduce the cooling amount.

[0034] Furthermore, the tritium carbon sampling system also includes an alarm, which is electrically connected to the control unit, and the control unit is used to control the alarm to work when the temperature of the coolant flowing out of the first liquid outlet is greater than the second preset temperature. Optionally, the alarm is a buzzer, an audible and visual alarm, etc.

[0035] It should be noted that when the second temperature sensor 22 detects that the temperature of the coolant flowing out of the first liquid outlet is greater than the second preset temperature, for example, the second preset temperature is 10°C, proving that the cooling unit 11 has a fault, the second temperature sensor 22 feeds back the second preset temperature to the control unit, and the control unit issues a shutdown command. At the same time, the control unit controls the alarm to issue a corresponding alarm message to remind the staff to handle it in time.

[0036] In one embodiment, see Figure 2 and Figure 3 The cooling unit 11 includes a first cooling module, which is used to cool the absorption liquid in the absorption unit 12. When working, the first cooling module cools the cooling liquid and supplies the cooling liquid to the absorption unit 12. The cooling liquid reduces the temperature of the absorption liquid so that the temperature of the absorption liquid is maintained within a preset temperature range. Under the action of the cooling liquid, the cooling function of the absorption unit 12 is realized, ensuring the reliability of the sampling result of the tritium carbon sampling device 10.

[0037] Further, see Figure 1 and Figure 3 The first cooling module includes a first liquid storage tank 111, a first pump body 114, a cooling body 112 and a first circulation pipe 113. The first liquid storage tank 111 is used to store cooling liquid. The first liquid storage tank 111 is provided with a second liquid inlet and a second liquid outlet. One end of the first circulation pipe 113 is connected to the second liquid outlet, and the other end of the first circulation pipe 113 passes through the first pump body 114, the low temperature side of the cooling body 112, and the absorption unit 12, and is connected to the second liquid inlet to form a first cooling circulation loop.

[0038] During operation, the first pump body 114 pumps the coolant from the second liquid outlet of the first liquid storage tank 111 to the first circulation pipe 113, and then the coolant passes through the low-temperature side of the cooling body 112 along the first circulation pipe 113. The low-temperature side of the cooling body 112 releases cold energy to exchange heat with the coolant to reduce the temperature of the coolant. Then, the coolant continues to flow through the absorption unit 12 along the first circulation pipe 113, so that the cooled coolant exchanges heat with the absorption liquid in the absorption unit 12 to cool the absorption liquid. Finally, the coolant flows back to the first liquid storage tank 111 through the second liquid inlet along the first circulation pipe 113. In this way, the absorption liquid is continuously cooled.

[0039] Optionally, the cooling body 112 is a semiconductor cooler, which can adjust the input voltage of the semiconductor cooler according to the temperature of the coolant flowing out of the first liquid outlet detected by the second temperature sensor 22, thereby changing the cooling output and achieving the purpose of controlling the coolant temperature.

[0040] In one embodiment, the cooling unit 11 further includes a second cooling module, which is used to dissipate heat from the high-temperature side of the cooling body 112. When the ambient temperature detected by the first temperature sensor is high, or when the second temperature sensor 22 detects that the temperature of the coolant flowing out through the first liquid outlet is high, the temperature of the high-temperature side of the cooling body 112 is reduced by the second cooling module, and then the temperature of the low-temperature side of the cooling body 112 is reduced, so as to reduce the temperature of the coolant, so that the temperature of the absorption liquid is maintained within a preset temperature range.

[0041] Further, see Figure 3 The second cooling module includes a second liquid storage tank 115, a second pump body, a heat sink 116, a fan 117 and a second circulation pipe 119. The second liquid storage tank 115 is also used to store coolant. The second liquid storage tank 115 is provided with a third liquid inlet and a third liquid outlet. One end of the second circulation pipe 119 is connected to the third liquid outlet, and the other end of the second circulation pipe 119 is connected to the third liquid inlet after passing through the second pump body, the high temperature side of the cooling body 112, and the heat sink 116 to form a second cooling circulation loop. The fan 117 is connected to the heat sink 116, and the air outlet side of the fan 117 faces the heat sink 116. When working, the second pump body pumps the coolant out of the third liquid outlet to the second circulation pipe 119. Then, the coolant passes through the high temperature side of the cooling body 112 along the second circulation pipe 119, and the coolant exchanges heat with the high temperature side of the cooling body 112 to reduce the temperature of the high temperature side of the cooling body 112, thereby ensuring the safe operation of the cooling body 112. Then, the high-temperature coolant after heat exchange continues to flow through the heat sink 116 along the second circulation pipe 119, and the fan 117 blows air to the heat sink 116 to reduce the temperature of the coolant flowing through the heat sink 116. Finally, the cooled coolant flows back to the second liquid storage tank 115 from the third liquid inlet along the second circulation pipe 119. In this way, continuous heat dissipation of the high-temperature side of the cooling body 112 is achieved.

[0042] In one embodiment, the first liquid storage tank 111 and / or the second liquid storage tank 115 are provided with a liquid level switch, and the control unit is electrically connected to the liquid level switch and the alarm. The control unit is used to control the alarm to work when the liquid level of the coolant in the first liquid storage tank 111 and / or the second liquid storage tank 115 is lower than the preset liquid level. When the liquid level of the coolant in the first liquid storage tank 111 and / or the second liquid storage tank 115 is lower than the preset liquid level, the liquid level switch feeds back the information to the control unit, and the control unit controls the alarm to send a corresponding alarm message to remind the staff to handle it in time. In this way, it can ensure that the coolant is maintained at the preset liquid level height, avoid the tritium carbon sampling device 10 from being unable to accurately sample due to coolant leakage, etc., and improve the safety of the operation.

[0043] In one embodiment, see Figure 1The first cooling loop and / or the second cooling loop are provided with a pressure sensor 30, and the pressure sensor 30 is electrically connected to the control unit. In this way, by providing the pressure sensor 30 in the first cooling loop and / or the second cooling loop, the pressure sensor 30 can detect the pressure change of the first cooling loop and / or the second cooling loop. When the pressure detected by the pressure sensor 30 exceeds the preset pressure value, the pressure sensor 30 feeds back the pressure information to the control unit, and the control unit controls the alarm to send out corresponding alarm information to remind the staff to handle it in time, which is conducive to improving the safety of the operation.

[0044] In one embodiment, see Figure 1 The tritium carbon sampling device 10 also includes a catalytic unit 13, which is connected to the absorption unit 12. The catalytic unit 13 is used to catalytically oxidize the gas in the absorption unit 12 to decompose the tritium and carbon 14 compounds in the gas that cannot be directly absorbed by the absorption liquid into tritium water and tritium water that are easily absorbed by the absorption liquid. 14 CO2.

[0045] During operation, the gas is filtered and passed into the absorption unit 12. The absorption liquid in the absorption unit 12 can absorb and sample the tritium and carbon 14 in the gas. When the absorption unit 12 absorbs tritium and carbon 14, the cooling unit 11 continues to cool the absorption liquid in the absorption unit 12 to ensure the absorption effect of the cooling liquid. At the same time, the catalytic unit 13 catalytically oxidizes the gas entering the absorption unit 12 to decompose the tritium and carbon 14 compounds in the gas that cannot be directly absorbed by the absorption liquid into tritium water and carbon 14 that are easily absorbed by the absorption liquid. 14 CO2, ensuring that the absorption unit 12 can completely absorb the tritium and carbon 14 elements in the gas, and finally the absorption unit 12 discharges the absorbed gas to complete the tritium carbon sampling.

[0046] Further, see Figure 1 and Figure 4 The absorption unit 12 includes an absorption bottle and a bottle cap 123 that opens and closes with the absorption bottle. The absorption bottle is used to hold an absorption liquid to absorb tritium and carbon 14 in the gas. There are multiple absorption bottles and bottle caps 123, and the two are the same in number. The multiple absorption bottles include a front absorption bottle 121 and a rear absorption bottle 122. The catalytic unit 13 connects the front absorption bottle 121 and the rear absorption bottle 122. When working, the filtered gas is passed into the front absorption bottle 121, and the front absorption bottle 121 directly absorbs tritium water and carbon 14 in the gas. 14 The gas then enters the catalytic unit 13, which decomposes the tritium and carbon 14 compounds in the gas that cannot be directly absorbed by the front-end absorption bottle 121 into tritium water and 14 CO2 is then passed into the rear absorption bottle 122, which absorbs tritium water in the gas catalytically oxidized by the catalytic unit 13 and14 CO2 to complete the sampling.

[0047] In this embodiment, there are four absorption bottles in total, the first two absorption bottles are front-end absorption bottles 121 , and the last two absorption bottles are rear-end absorption bottles 122 .

[0048] In one embodiment, see Figure 1 The rear-stage absorption bottle 122 is provided with a fourth liquid outlet for discharging the coolant, and the fourth liquid outlet is provided with a liquid outlet pipe. The temperature acquisition device 20 also includes a third temperature sensor, and the third temperature sensor is provided in the liquid outlet pipe. In this way, by providing the third temperature sensor in the liquid outlet pipe, the third temperature sensor detects the temperature of the coolant flowing out of the rear-stage absorption bottle 122, and according to the temperature information detected by the third temperature sensor, the working condition of the cooling unit 11 can be controlled by the control unit.

[0049] In this embodiment, a third temperature sensor is arranged on the liquid outlet pipe of the fourth liquid outlet of the third and / or fourth absorption bottle.

[0050] In one embodiment, the tritium carbon sampling system has alarm and safety interlocking functions, which increase the safety of the tritium carbon sampling system and reduce operational risks.

[0051] The tritium carbon sampling system also has remote information communication and SMS alarm functions to reduce personnel inspections. This solution can provide remote information and reduce personnel inspections by setting up a remote information communication module. In addition, by setting up the SMS alarm function and issuing remote alarm information, it can prompt the staff to carry out relevant maintenance work.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 system, characterized in that: It includes a tritium carbon sampling device and a temperature collection device; The temperature acquisition device comprises a first temperature sensor, and the first temperature sensor is used to detect the ambient temperature of the location where the tritium carbon sampling device is located; The tritium carbon sampling device includes a cooling unit, an absorption unit and a control unit. The cooling unit is connected to the absorption unit. The control unit is electrically connected to the first temperature sensor and the cooling unit. When the ambient temperature is greater than a first preset temperature, the control unit is used to control the cooling unit to cool the coolant and control the cooling unit to transport the coolant to the absorption unit.

2. The tritium carbon sampling system according to claim 1, characterized in that: The cooling unit is provided with a first liquid outlet, the absorption unit is provided with a first liquid inlet, and the first liquid outlet is communicated with the first liquid inlet; The temperature acquisition device further includes a second temperature sensor, which is disposed at the first liquid outlet, or the second temperature sensor is disposed in a pipeline between the first liquid outlet and the first liquid inlet, and the second temperature sensor is used to detect the temperature of the coolant flowing out of the first liquid outlet; The control unit is electrically connected to the second temperature sensor, and the control unit is used to control the cooling unit to adjust the cooling temperature according to the temperature of the coolant flowing out through the first liquid outlet.

3. The tritium carbon sampling system according to claim 2, characterized in that: The tritium carbon sampling system also includes an alarm, which is electrically connected to the control unit. The control unit is used to control the alarm to operate when the temperature of the coolant flowing out through the first liquid outlet is greater than a second preset temperature.

4. The tritium carbon sampling system according to claim 3, characterized in that: The cooling unit includes a first liquid storage tank, a first pump body, a cooling body and a first circulation pipe. The first liquid storage tank is used to store coolant. The first liquid storage tank is provided with a second liquid inlet and a second liquid outlet. One end of the first circulation pipe is connected to the second liquid outlet, and the other end of the first circulation pipe is sequentially connected to the first pump body, the low-temperature side of the cooling body, the absorption unit and then the second liquid inlet to form a first cooling circulation loop.

5. The tritium carbon sampling system according to claim 4, characterized in that: The cooling body is a semiconductor cooler.

6. The tritium carbon sampling system according to claim 4, characterized in that: The cooling unit also includes a second liquid storage tank, a second pump body, a heat sink, a fan and a second circulation pipe. The second liquid storage tank is also used to store coolant. The second liquid storage tank is provided with a third liquid inlet and a third liquid outlet. One end of the second circulation pipe is connected to the third liquid outlet, and the other end of the second circulation pipe is connected to the third liquid inlet after passing through the second pump body, the high-temperature side of the cooling body and the heat sink to form a second cooling circulation loop. The fan is connected to the heat sink, and the air outlet side of the fan faces the heat sink.

7. The tritium carbon sampling system according to claim 6, characterized in that: The first liquid storage tank and / or the second liquid storage tank is provided with a liquid level switch; the control unit is electrically connected to the liquid level switch, and the control unit is used to control the alarm to operate when the liquid level of the coolant in the first liquid storage tank and / or the second liquid storage tank is lower than a preset liquid level.

8. The tritium carbon sampling system according to claim 6, characterized in that: The first cooling circulation loop and / or the second cooling circulation loop is provided with a pressure sensor, and the pressure sensor is electrically connected to the control unit. The control unit is used to control the alarm to operate when the pressure of the first cooling circulation loop and / or the second cooling circulation loop is greater than a preset pressure value.

9. The tritium carbon sampling system according to any one of claims 1 to 8, characterized in that: The tritium carbon sampling device also includes a catalytic unit, which is connected to the absorption unit and is used for catalytically oxidizing the gas in the absorption unit.

10. The tritium carbon sampling system according to claim 9, characterized in that: The absorption unit comprises an absorption bottle, and the absorption bottle is used to hold the absorption liquid; the absorption bottle is provided in plurality, and the plurality of absorption bottles comprises a front absorption bottle and a rear absorption bottle, and the catalytic unit is connected with the front absorption bottle and the rear absorption bottle; The rear-stage absorption bottle is provided with a fourth liquid outlet for discharging the coolant, and the fourth liquid outlet is provided with a liquid outlet pipe; the temperature collection device also includes a third temperature sensor, and the third temperature sensor is provided at the liquid outlet or the liquid outlet pipe.

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