High-flow tritium sampler

Abstract

A high-flow tritium sampler relates to the technical field of tritium sampling equipment and comprises a box body, a tritium condensing device, a collecting water tank and a control device, the tritium condensing device comprises a condensing and evaporating assembly, a fan and a compressor, the condensing and evaporating assembly comprises an evaporator and a condenser, an air inlet of the evaporator penetrates through the box body and is communicated with the outside, an air outlet of the condenser is communicated with the fan, and the compressor is matched with the condensing and evaporating assembly; a water receiving funnel is mounted below the evaporator, and the water collecting tank is arranged below the water receiving funnel; the control device comprises a control panel, the control panel is installed in the box body, a distance exists between the control panel and the tritium condensation device, and a heat dissipation frame is installed below the control panel. High-flow sampling can be carried out on tritium in air, the sampling efficiency is improved, and the sampling energy consumption is reduced; and heat dissipation of control elements is facilitated, the service life of the elements is prolonged, the maintenance cost is reduced, and normal sampling is ensured.

Description

Technical Field

[0001] This utility model relates to the field of tritium sampling equipment technology, and in particular to a high-flow-rate tritium sampler. Background Technology

[0002] Tritium exists in nature as tritized water, tritium gas, and organic hydrocarbon compounds. Naturally occurring tritium maintains a very low and stable content. Tritium (T) is a radioactive isotope of hydrogen, a low-energy beta radiator, with a maximum energy of 18.6 keV, an average energy of 5.6 keV, and a half-life of 12.26 years.

[0003] Tritium exists primarily in the chemical forms of water tritide (HTO) and reduced tritium (including HT and CH3T), and is released into the environment as gaseous or liquid effluents. The different chemical forms of tritium result in significant differences in their harmful effects on the human body. Specifically, HT or CH3T, even if they enter the human body, have a relatively short retention time and pose less harm. However, water tritide, after entering the body through respiration and ingestion, accumulates in water-rich organs such as the liver, kidneys, small intestine, and blood. These organs have high tissue weighting factors, thus easily leading to severe internal radiation damage.

[0004] When tritium exists in the form of tritized water, its chemical properties are exactly the same as ordinary water, and it is easily absorbed by organisms. However, the toxicity of tritized water is more than 10,000 times that of tritium gas. Therefore, it is essential to sample tritium in the air.

[0005] Traditional tritium samplers mostly use a low-flow-rate method to sample tritium, which cannot sample tritium in the air at a high flow rate. If a large amount of tritium needs to be collected, it is necessary to sample for a long time, which is inefficient and consumes a lot of energy. Moreover, the control components are complex in structure and prone to heat generation. Due to the need for long-term operation, their heat dissipation capacity is affected by the structural layout, which reduces their lifespan and makes them prone to damage, affecting normal sampling and increasing maintenance costs. Utility Model Content

[0006] In view of this, the technical problem to be solved by this utility model is to provide a high-flow-rate tritium sampler that can sample tritium in the air at a high flow rate, improve sampling efficiency, reduce sampling energy consumption, and facilitate heat dissipation of control components, extend their service life, reduce maintenance costs, and ensure normal sampling.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] A high-flow-rate tritium sampler includes a housing, a tritium condensation device, a water collection tank, and a control device installed in the housing;

[0009] The tritium condensation device includes a condensation-evaporation assembly, a fan, and a compressor. The condensation-evaporation assembly includes an evaporator and a condenser installed sequentially and connected along the airflow direction. The air inlet of the evaporator passes through the housing and is connected to the outside. The air outlet of the condenser is connected to the fan. The fan draws outside air into the condensation-evaporation assembly and then discharges it to the outside. The compressor is adapted to the condensation-evaporation assembly and is used to condense tritium in the air.

[0010] A water-receiving funnel is installed below the evaporator, and a water collection tank is located below the water-receiving funnel and communicates with the water-receiving funnel. The water collection tank is used to hold the tritium water collected by the water-receiving funnel.

[0011] The control device includes a control panel, which is installed in the housing and located above the tritium condensation device. There is a gap between the control panel and the tritium condensation device, and a heat sink is installed below the control panel.

[0012] Preferably, the number of condensers is twice the number of evaporators.

[0013] Preferably, the bottom plate of the water receiving funnel is inclined.

[0014] Preferably, an L-shaped water nozzle is installed on the water receiving funnel, and the L-shaped water nozzle is connected to the water collection tank.

[0015] Preferably, a liquid level sensor is installed on the water receiving funnel, and the liquid level sensor is positioned close to the L-shaped water nozzle.

[0016] Preferably, the air inlet of the evaporator is equipped with a differential pressure filter assembly, and the differential pressure filter assembly contains filter cotton with a thickness of 10 mm and a density of 60 PPI.

[0017] Preferably, the enclosure includes a mounting top plate, the control panel is mounted on the mounting top plate, and the mounting top plate has a plurality of top heat dissipation holes.

[0018] Preferably, a box cover is hinged to the mounting top plate;

[0019] The heat sink has a rectangular structure, and several heat dissipation strips are provided on the side wall of the heat sink.

[0020] Preferably, an exhaust fan is installed on the housing, and the exhaust fan is installed on the side away from the air inlet of the condenser-evaporator assembly;

[0021] The bottom of the enclosure has ventilation holes.

[0022] Preferably, the enclosure is equipped with a safety device, a power socket, and a temperature and humidity probe.

[0023] After adopting the above technical solution, the beneficial effects of this utility model are:

[0024] This application includes a housing and a tritium condensation device, a collection tank, and a control device installed within the housing. The tritium condensation device includes a condensation-evaporation assembly, a fan, and a compressor. The condensation-evaporation assembly includes an evaporator and a condenser installed sequentially and connected along the airflow direction. The evaporator's air inlet penetrates the housing and connects to the outside, while the condenser's air outlet connects to the fan. The fan draws outside air into the condensation-evaporation assembly and then discharges it to the outside. The compressor is adapted to the condensation-evaporation assembly for condensing tritium in the air. A water-collecting funnel is installed below the evaporator, and the collection tank is located below and connected to the funnel. The tritized water produced by the evaporator's condensation collects in the funnel and then flows naturally into the collection tank for centralized collection. This continuous collection of tritium from the air meets the requirements of high-flow-rate sampling, thus improving sampling efficiency and reducing sampling energy consumption.

[0025] The control device includes a control panel, which is mounted on the enclosure and above the tritium condenser. There is a gap between the control panel and the tritium condenser, and a heat sink is installed below the control panel. By mounting the control panel above the enclosure, firstly, the control panel is unaffected by the internal temperature of the enclosure and can dissipate heat directly from the outside environment. Secondly, the heat generated by the control panel itself can also be dissipated to the outside in a timely manner, which is beneficial for its own heat dissipation, extending the service life of various control components on the control panel and reducing later maintenance costs. Simultaneously, the heat sink installed below the control panel not only facilitates heat dissipation but also protects the control components mounted on it, ensuring normal sampling operations. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the structure of a high-flow-rate tritium sampler according to an embodiment of this utility model;

[0028] Figure 2 yes Figure 1 A schematic diagram of the tritium condenser;

[0029] Figure 3 yes Figure 2 Schematic diagram of the structure of the intermediate condenser-evaporator assembly;

[0030] Figure 4 yes Figure 1 A partial cross-sectional view after the tritium condenser has been removed;

[0031] In the picture:

[0032] 1. Cabinet body; 11. Top plate mounting; 12. Top ventilation holes; 13. Cabinet cover; 14. Bottom ventilation holes;

[0033] 2. Tritium condenser; 21. Condensation and evaporation assembly; 211. Evaporator; 212. Condenser; 213. Water receiving funnel; 214. L-shaped water tap; 215. Liquid level sensor; 22. Fan; 23. Compressor; 24. Filter differential pressure assembly; 241. Filter cotton;

[0034] 3. Collect water in the tank;

[0035] 4. Control device; 41. Control panel; 42. Heat sink; 43. Heat sink strip;

[0036] 5. Exhaust fan;

[0037] 6. Safety devices;

[0038] 7. Power socket;

[0039] 8. Temperature and humidity probe. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0041] like Figures 1 to 4 As shown in the figure, the present invention includes a housing 1 and a tritium condensation device 2, a water collection tank 3 and a control device 4 installed on the housing 1.

[0042] In this application, the tritium condensation device 2 is used to condense tritium in the air to form tritized water. The tritium condensation device 2 includes a condensation-evaporation assembly 21, a fan 22, and a compressor 23. The condensation-evaporation assembly 21 includes an evaporator 211 and a condenser 212 that are installed sequentially and connected along the airflow direction. The air inlet of the evaporator 211 passes through the housing 1 and is connected to the outside. The air outlet of the condenser 212 is connected to the fan 22. The fan 22 draws outside air into the condensation-evaporation assembly 21 and then discharges it to the outside. The compressor 23 is adapted to the condensation-evaporation assembly 21 and is used to condense tritium in the air.

[0043] A water-receiving funnel 213 is installed below the evaporator 211, and a water collection tank 3 is located below and connected to the water-receiving funnel 213. The water collection tank 3 is used to hold the tritized water collected by the water-receiving funnel 213. The tritized water generated by the condensation of the evaporator 211 is collected in the water-receiving funnel 213 and then flows naturally into the water collection tank 3 for centralized collection. This continuous collection of tritium in the air meets the requirements of high-flow-rate sampling, thus improving sampling efficiency and reducing sampling energy consumption.

[0044] Preferably, the number of condensers 212 is twice the number of evaporators 211, to meet the tritium condensation requirements of the condensation-evaporation assembly 21.

[0045] The control device 4 includes a control panel 41, which is installed on the housing 1 and above the tritium condenser 2. There is a gap between the control panel 41 and the tritium condenser 2. A heat sink 42 is installed below the control panel 41. After the control panel 41 is installed above the housing 1, it is not affected by the internal temperature of the housing 1 and can dissipate heat in time through direct contact with the outside. Secondly, the heat generated by the control panel 41 itself can also be dissipated to the outside in time, which is also beneficial to its own heat dissipation, extending the service life of various control components on the control panel 41 and reducing the later maintenance costs. At the same time, the heat sink 42 installed below the control panel 41 is beneficial to the heat dissipation of the control panel 41 and also helps to protect the control components installed on it, ensuring the normal operation of sampling.

[0046] In order to facilitate the timely and convenient discharge of the tritium water generated by condensation by the water receiving funnel 213, the bottom plate of the water receiving funnel 213 is set in an inclined shape, with one end of the bottom plate inclined towards the side close to the water collection tank 3.

[0047] An L-shaped water nozzle 214 is installed on the water receiving funnel 213, and the L-shaped water nozzle 214 is connected to the water collection tank 3. A liquid level sensor 215 is installed on the water receiving funnel 213, and the liquid level sensor 215 is positioned close to the L-shaped water nozzle 214. The liquid level sensor 215 is an NPN sensor. When the tritium water in the water collection tank 3 is full, the tritium water produced subsequently will accumulate in the water receiving funnel 213, and will eventually be detected by the liquid level sensor 215. This indicates that the water collection tank 3 is full, and the liquid level sensor 215 sends an electrical signal. After being received by the control panel 41, the control alarm device will issue a reminder to remind the staff to remove the water collection tank 3 in time.

[0048] In this application, a differential pressure filter assembly 24 is installed at the air inlet of the evaporator 211. The differential pressure filter assembly 24 contains a filter cotton 241 with a thickness of 10 mm and a density of 60 PPI. The filter cotton 241 can filter impurities in the air, improving the cleanliness of the gas entering the tritium condenser 2 and also increasing the purity of the collected tritium water.

[0049] The enclosure 1 includes a mounting top plate 11, and a control panel 41 is mounted on the mounting top plate 11. The mounting top plate 11 has several top heat dissipation holes 12, which allow hot air inside the enclosure 1 to be discharged in a timely manner, facilitating heat dissipation of the enclosure 1.

[0050] A cover 13 is hinged to the mounting top plate 11; the heat dissipation frame 42 has a rectangular structure, and several heat dissipation strips 43 are provided on the side wall of the heat dissipation frame 42. When the application is not in use, the cover 13 is fastened to the mounting top plate 11 to protect the control device 4 and prevent foreign objects from entering the interior of the housing 1 through the top heat dissipation hole 12; when the application is in use, the cover 13 is opened to facilitate heat dissipation. At the same time, the heat dissipation strips 43 also allow the heat generated by the control panel 41 itself to be dissipated to the outside in a timely manner, which is also beneficial to its own heat dissipation and extends the service life of various control components on the control panel 41.

[0051] An exhaust fan 5 is installed on the housing 1. The exhaust fan 5 is installed on the side away from the air inlet of the condenser evaporator 21. A bottom heat dissipation hole 14 is opened at the bottom of the housing 1. Under the action of the exhaust fan 5, the outside air enters the housing 1 through the bottom heat dissipation hole 14 and is discharged by the exhaust fan 5. In this process, the air carries away the heat inside the housing 1 and cools down the tritium condenser 2.

[0052] The enclosure 1 is equipped with a safety device 6, a power socket 7, and a temperature and humidity probe 8. The safety device 6 can cut off the power supply in case of a short circuit, preventing fire or equipment damage. The power socket 7 is the power input terminal. The temperature and humidity probe 8 is used to monitor the humidity and temperature inside the enclosure 1 in real time. The control panel 41 is electrically connected to the fan 22, compressor 23, exhaust fan 5, and temperature and humidity probe 8, respectively.

[0053] When using this application, first open the box cover 13 to expose the control panel 41. The control panel 41 controls the fan 22 and compressor 23 to start. The fan 22 draws in outside air, and the compressor 23 is adapted to the condenser-evaporator assembly 21 to collect tritium until it condenses to form tritized water. The tritized water is collected in the collection tank 3.

[0054] During this process, the control panel 41 controls the exhaust fan 5 to turn on or off based on the detection electrical signal from the temperature and humidity probe 8.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-flow-rate tritium sampler, characterized in that, It includes a housing, a tritium condensation device, a water collection tank, and a control device installed in the housing; The tritium condensation device includes a condensation-evaporation assembly, a fan, and a compressor. The condensation-evaporation assembly includes an evaporator and a condenser installed sequentially and connected along the airflow direction. The air inlet of the evaporator passes through the housing and is connected to the outside. The air outlet of the condenser is connected to the fan. The fan draws outside air into the condensation-evaporation assembly and then discharges it to the outside. The compressor is adapted to the condensation-evaporation assembly and is used to condense tritium in the air. A water-receiving funnel is installed below the evaporator, and a water collection tank is located below the water-receiving funnel and communicates with the water-receiving funnel. The water collection tank is used to hold the tritium water collected by the water-receiving funnel. The control device includes a control panel, which is installed in the housing and located above the tritium condensation device. There is a gap between the control panel and the tritium condensation device, and a heat sink is installed below the control panel.

2. The high-flow-rate tritium sampler as described in claim 1, characterized in that, The number of condensers is twice the number of evaporators.

3. The high-flow-rate tritium sampler as described in claim 1, characterized in that, The bottom plate of the water receiving funnel is inclined.

4. The high-flow-rate tritium sampler as described in claim 1, characterized in that, An L-shaped water nozzle is installed on the water receiving funnel, and the L-shaped water nozzle is connected to the water collection tank.

5. The high-flow-rate tritium sampler as described in claim 4, characterized in that, A liquid level sensor is installed on the water receiving funnel, and the liquid level sensor is positioned close to the L-shaped water nozzle.

6. The high-flow-rate tritium sampler as described in claim 1, characterized in that, The air inlet of the evaporator is equipped with a differential pressure filter assembly, which contains filter cotton with a thickness of 10 mm and a density of 60 PPI.

7. The high-flow-rate tritium sampler as described in claim 1, characterized in that, The enclosure includes a mounting top plate, the control panel is mounted on the mounting top plate, and the mounting top plate has several top heat dissipation holes.

8. The high-flow-rate tritium sampler as described in claim 7, characterized in that, A box cover is hinged to the mounting top plate; The heat sink has a rectangular structure, and several heat dissipation strips are provided on the side wall of the heat sink.

9. The high-flow-rate tritium sampler as described in claim 1, characterized in that, An exhaust fan is installed on the housing, and the exhaust fan is installed on the side away from the air inlet of the condenser-evaporator assembly; The bottom of the enclosure has ventilation holes.

10. The high-flow-rate tritium sampler as described in claim 1, characterized in that, The enclosure is equipped with a safety device, a power socket, and a temperature and humidity probe.

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