CN203882634U - Tritium water collecting device - Google Patents
Tritium water collecting device Download PDFInfo
- Publication number
- CN203882634U CN203882634U CN201420315799.9U CN201420315799U CN203882634U CN 203882634 U CN203882634 U CN 203882634U CN 201420315799 U CN201420315799 U CN 201420315799U CN 203882634 U CN203882634 U CN 203882634U
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- CN
- China
- Prior art keywords
- molecular sieve
- tritium
- hto
- gas
- liquid nitrogen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a tritium water collecting device. A vacuum booster pump, an air-cooling coil, a cold trap cooler, a molecular sieve absorber, a liquid nitrogen temperature molecular sieve absorber and an impurity removal bed in the tritium water collecting device are connected through pipelines. According to the working process, the vacuum booster pump compresses gas containing tritium into the air-cooling coil to be cooled to be at the temperature of 40 DEG C, then the gas containing tritium enters the cold trap cooler to be cooled, tritium water is absorbed through the molecular sieve absorber and is absorbed through the liquid nitrogen temperature molecular sieve absorber at the liquid nitrogen temperature finally, and residual gas containing tritium is exhausted to a tritium purification system through a blowoff valve. By means of the tritium water collecting device, the service life of an alloy hydrogen absorption bed and a catalytic oxidation bed of the tritium purification system can be prolonged by about 50%, the use efficiency can be improved by more than 50%, and generated molecular sieve adsorbent radioactive waste is reduced by more than 80%. The tritium water collecting device can also be applied to nuclear emergency of highly radioactive tritium gas in nuclear facilities.
Description
Technical field
The utility model belongs to that the tritiated water in high radiation tritium gas in nuclear facilities is collected and the removal device field of impurity, is specifically related to a kind of HTO gathering-device.
Background technology
Because tritium is the virose radioactive nuclide of tool, in a lot of nuclear facilities, there is the foreign gas of high radiation tritium gas, tritiated water and other nucleic.These tritium gas, tritiated water and foreign gas are directly discharged can be to environment, must collect through purified treatment and reaches or lower than tritium emission standard, meet the requirement of protection of the environment.Current processing mode is direct purification, and cleaning system is mainly to take the material technologies such as catalyst oxidation and molecular sieve drying, absorption hydrogen, and its principle one is to be converted into tritiated water containing the tritium in tritium waste gas through catalytic oxidation, directly absorbs with molecular sieve; The 2nd, under purer tritium gas or inert gas atmosphere, directly absorb CO, CO in tritium gas with absorption hydrogen bed
2, O
2, CH
xdeng catalyzer, absorption hydrogen bed accessory being had to poisoning effect, make its Efficiency Decreasing even ineffective, the drawbacks such as the refuse that produces while therefore utilizing existing purified treatment mode to process tritium waste gas in tritium field is many, efficiency is low, cost is high, organic tritium stubbornness.For this reason, the HTO gathering-device of the utility model development can overcome the above problems.The HTO gathering-device of the utility model development is collected the HTO steam in tritium gas atmosphere, and removes most of N
2, CO
2, O
2, CH
xetc. foreign gas, reduce the poisoning effect of foreign gas for tritium cleaning system absorption hydrogen bed and catalytic oxidation bed.Molecular sieve drying absorption service efficiency can improve more than 50%, catalytic oxidant life 50% left and right, improve molecular sieve drying adsorption efficiency and reduce the frequency of changing molecular sieve drying absorption, reduce the more than 80% of molecular sieve drying adsorbent radioactive waste of changing, also reduced replacing radioactivity and penetrated the irradiated risk of refuse molecular sieve drying adsorbent operating personnel.
Summary of the invention
Process in order to overcome high radiation tritium gas in prior art the weak point that generation refuse is many, treatment effeciency is low, cost is high, the utility model provides a kind of HTO gathering-device.
Realize the technical solution of the utility model as follows
HTO gathering-device of the present utility model, is characterized in, described device comprises vacuum gooster pump, air-cooling coils, cold-trap refrigeratory, molecular sieve absorber, liquid nitrogen temperature molecular sieve absorber, removal of impurities bed, pipeline, exhaust-valve.Its annexation is that described vacuum gooster pump, air-cooling coils, cold-trap refrigeratory, molecular sieve absorber, liquid nitrogen temperature molecular sieve absorber, removal of impurities bed connect by gas pipeline successively, are provided with exhaust-valve on gas pipeline; Wherein, described cold-trap refrigeratory, molecular sieve absorber are also connected with the cold-trap that cooling medium is housed respectively by condensation pipe.
Described vacuum gooster pump will be pressed into air-cooling coils cool to room temperature containing tritium gas, enter again cold-trap refrigeratory cooling, the condensation of part HTO is got off, then utilize the molecular sieve in molecular sieve absorber to absorb HTO, finally in liquid nitrogen temperature molecular sieve absorber, under liquid nitrogen temperature, utilize molecular sieve to absorb HTO, residual gas is mainly tritium gas, is discharged to tritium cleaning system by exhaust-valve II; After HTO has been collected, liquid nitrogen temperature molecular sieve absorber is suitably heated up, tritium gas is discharged and most of foreign gas continues to be absorbed by molecular sieve, discharge adopt removal of impurities bed to remove foreign gas containing tritium gas after be discharged to tritium cleaning system by exhaust-valve I.
On described vacuum gooster pump pump head, be provided with buffering dedusting protector.
Described cold-trap refrigeratory is outside equipped with muff;
Described liquid nitrogen temperature molecular sieve absorber is outside equipped with vacuum heat-insulating layer, and top is provided with heat insulation cover plate, temp probe and exhaust-valve II.
Described removal of impurities bed is outside equipped with heating jacket, and top is provided with temperature controller.
Vacuum gooster pump in the utility model device will be pressed into air-cooling coils containing tritium gas and be cooled to approximately 40 DEG C, make part HTO be condensed into liquid state; Enter again cold-trap refrigeratory cooling, most HTO condensations are got off; Then utilize molecular sieve to absorb HTO, finally under liquid nitrogen temperature, utilize molecular sieve further to absorb trapping HTO steam and other gas, residual gas (being mainly tritium gas) is discharged to tritium cleaning system.Under liquid nitrogen temperature, molecular sieve can all trap gas tritium, HTO steam and other gas, heats up a little, tritium gas can be discharged and other gas including HTO steam can not be released in about 100K.After HTO has been collected, liquid nitrogen temperature molecular sieve absorber is suitably heated up, tritium gas is discharged and most of foreign gas continues to be absorbed by molecular sieve, what discharge adopts removal of impurities bed to remove a large amount of N containing tritium gas
2, CO
2, O
2, be discharged to tritium cleaning system after the foreign gas such as CHx.
The beneficial effects of the utility model are:
(1) life-span of prolongation tritium cleaning system absorption hydrogen bed and catalytic oxidation bed.Due to N
2, CO
2, O
2, CH
xetc. foreign gas, tritium cleaning system absorption hydrogen bed and catalytic oxidation bed accessory are had to poisoning effect, gathering-device of the present utility model can be removed most of N by liquid nitrogen temperature molecular sieve absorber, removal of impurities bed
2, CO
2, O
2, CH
xetc. foreign gas, thereby can reduce the poison infringement of foreign gas for tritium cleaning system absorption hydrogen bed and catalytic oxidation bed, so can extend life-span 50% left and right of tritium cleaning system absorption hydrogen bed and catalytic oxidation bed;
(2) efficiency is high.Due under most HTOs are condensed in cold-trap refrigeratory is cold, residual gas enters molecular sieve absorber again, utilize molecular sieve to absorb HTO, has therefore reduced molecular sieve and absorb the total amount of tritiated water, can improve service efficiency more than 50%.
(3) refuse is few.Owing to having improved molecular sieve drying adsorption efficiency, thereby reduced the frequency of changing molecular sieve drying absorption, adopted this device, the molecular sieve drying adsorbent radioactive waste of replacing reduces more than 80%.
(4) tritium gas emergency monitoring.Because device of the present utility model is removable, portable, device of the present utility model gets off airborne tritium condensation by vacuum gooster pump, air-cooling coils, cold-trap refrigeratory, molecular sieve absorber, condensed fluid is emitted from the tap hole of cold-trap refrigeratory, device of the present utility model detects as sample, so can effectively be applied to the nuclear emergency work of high radiation tritium gas in nuclear facilities.
Device of the present utility model can make collected and assisted by other reagent by direct containing tritium gas, can collect the HTO steam in atmosphere, and remove most of N in any nuclear facilities while having high radioactivity tritium gas
2, CO
2, O
2, CH
xetc. foreign gas, to reduce the poisoning effect of foreign gas for tritium cleaning system absorption hydrogen bed and catalytic oxidation bed.The molecular sieve drying adsorbent radioactive waste producing is reduced more than 80%, and service efficiency improves more than 50%, catalytic oxidant life 50% left and right, and the utility model is simple in structure, easy operating.
Brief description of the drawings
Fig. 1 is HTO gathering-device structural representation of the present utility model;
Fig. 2 is HTO gathering-device process chart of the present utility model;
In figure, 1. vacuum gooster pump 2. air-cooling coils 3. cold-trap refrigeratory 4. cold-trap 5. molecular sieve absorber 6. muff 7. liquid nitrogen temperature molecular sieve absorber 8. vacuum heat-insulating layer 9. exhaust-valve I 10. removal of impurities bed 11. heating jacket 12. exhaust-valve II.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
Fig. 1 is HTO gathering-device structural representation of the present utility model, HTO gathering-device of the present utility model, comprises vacuum gooster pump 1, air-cooling coils 2, cold-trap refrigeratory 3, molecular sieve absorber 5, liquid nitrogen temperature molecular sieve absorber 7, removal of impurities bed 10, pipeline, exhaust-valve.Its annexation is that described vacuum gooster pump 1, air-cooling coils 2, cold-trap refrigeratory 3, molecular sieve absorber 5, liquid nitrogen temperature molecular sieve absorber 7, removal of impurities bed 10 connect by gas pipeline successively, are provided with respectively exhaust-valve on gas pipeline; Wherein, described cold-trap refrigeratory 3, molecular sieve absorber 5 are also connected with the cold-trap 4 that cooling medium is housed respectively by condensation pipe.
In the present embodiment, cold-trap refrigeratory 3 adopts cold-trap-10 DEG C refrigeratory, molecular sieve absorber 5 adopts-10 DEG C of molecular sieve absorbers, described vacuum gooster pump 1 will be pressed into air-cooling coils 2 cool to room temperature containing tritium gas, enter again a cold-trap-10 DEG C refrigeratory and be cooled to-10 DEG C, the condensation of part HTO is got off, then utilize the molecular sieve in-10 DEG C of molecular sieve absorbers to absorb HTO at-10 DEG C, finally in liquid nitrogen temperature molecular sieve absorber 7, under liquid nitrogen temperature, utilize molecular sieve to absorb HTO, residual gas is mainly tritium gas, be discharged to tritium cleaning system by exhaust-valve II 12, after HTO has been collected, liquid nitrogen temperature molecular sieve absorber 7 is suitably heated up, tritium gas is discharged and most of foreign gas continues to be absorbed by molecular sieve, discharge adopt removal of impurities bed 10 to remove foreign gas containing tritium gas after be discharged to tritium cleaning system by exhaust-valve I 9.
On described vacuum gooster pump 1 pump head, be provided with buffering dedusting protector.
A described cold-trap-10 DEG C refrigeratory is outside equipped with muff 6;
Described liquid nitrogen temperature molecular sieve absorber 7 is outside equipped with vacuum heat-insulating layer 8, and top is provided with heat insulation cover plate, temp probe and exhaust-valve II 12.
Described removal of impurities bed 10 is outside equipped with heating jacket 11, and top is provided with temperature controller.
In the utility model device, the effect of each ingredient is as follows:
Air-cooling coils: HTO steam is cooled to 40 DEG C, makes part HTO be condensed into liquid state;
Cold-trap-10 DEG C refrigeratory: HTO steam is cooled to-10 DEG C, makes most HTOs be condensed into liquid state;
-10 DEG C of molecular sieve absorbers: at-10 DEG C, part HTO is absorbed by molecular sieve;
Liquid nitrogen temperature molecular sieve absorber: under liquid nitrogen temperature (77K), HTO steam and other gas are trapped by molecular sieve;
Removal of impurities bed: utilize and soak the synthetic getter material of stagnant reducing process foreign gas contained in gas is absorbed or decomposed as oxygen, methane, carbon dioxide etc., reduce the impact of foreign gas for tritium cleaning system absorption hydrogen bed, further reduce the foreign gas that prime cryosorption is not removed completely.
Fig. 2 is HTO gathering-device process chart of the present utility model, in the utility model, between each several part, connect by gas pipeline, on pipeline, be provided with some exhaust-valves, wherein between DEG C refrigeratory of air-cooling coils and cold-trap-10, be also connected by interior cold-trap and the pipeline that cooling medium is housed.It uses workflow: vacuum gooster pump 1 will be pressed into air-cooling coils 2 by pipeline containing tritium gas, make containing 40 DEG C of tritium gas cool to room temperature, and make part HTO be condensed into liquid state, cooledly enter again a cold-trap-10 DEG C refrigeratory by pipeline and be cooled to-10 DEG C containing tritium gas, then utilize-10 DEG C of molecular sieve absorbers to absorb HTO at-10 DEG C, finally under liquid nitrogen temperature, utilize liquid nitrogen temperature molecular sieve absorber 7 to absorb HTO, residual gas (being mainly tritium gas) is discharged (to tritium cleaning system) by exhaust-valve II 12.Under liquid nitrogen temperature, (77K) liquid nitrogen temperature molecular sieve absorber 7 can completely trap gas tritium, HTO steam and other gas, heats up a little, tritium gas can be discharged and other gas including HTO steam can not be released in about 100K.After HTO has been collected, liquid nitrogen temperature molecular sieve absorber 7 is suitably heated up, tritium gas is discharged and most of foreign gas continues to be absorbed by liquid nitrogen temperature molecular sieve absorber 7, what discharge adopts removal of impurities bed 10 to remove a large amount of N containing tritium gas
2, CO
2, O
2, CH
xafter foreign gas, be discharged to tritium cleaning system by exhaust-valve I 9.
The utility model device meets the application of radiation work completely.
The utility model can overcome when having high radioactivity tritium gas in any nuclear facilities to be collected the HTO steam in atmosphere, and removes most of N
2, CO
2, O
2, CH
xetc. foreign gas, reduce the poisoning effect of foreign gas for tritium cleaning system absorption hydrogen bed and catalytic oxidation bed; The utility model device also can be external to cleaning system rear portion, and the HTO steam that tritium cleaning system is produced is collected, and further reduces the tritium concentration level being discharged in environment, ensures staff's health and the safety of environment.And nuclear emergency work, the efficiency that can effectively be applied to high radiation tritium gas in nuclear facilities are high, respond well.
The utility model device is not limited to this embodiment, all can implement and have described good result described in the utility model device context.
Claims (5)
1. a HTO gathering-device, it is characterized in that, described device comprises vacuum gooster pump (1), air-cooling coils (2), cold-trap refrigeratory (3), molecular sieve absorber (5), liquid nitrogen temperature molecular sieve absorber (7), removal of impurities bed (10), pipeline, exhaust-valve; Its annexation is, described vacuum gooster pump (1), air-cooling coils (2), cold-trap refrigeratory (3), molecular sieve absorber (5), liquid nitrogen temperature molecular sieve absorber (7), removal of impurities bed (10) connect by gas pipeline successively, are provided with exhaust-valve on gas pipeline; Wherein, described cold-trap refrigeratory (3), molecular sieve absorber (5) are also connected with the cold-trap (4) that cooling medium is housed respectively by condensation pipe; Described vacuum gooster pump (1) will be pressed into air-cooling coils (2) cool to room temperature containing tritium gas, enter again cold-trap refrigeratory (3) cooling, the condensation of part HTO is got off, then utilize the molecular sieve in molecular sieve absorber (5) to absorb HTO, finally in liquid nitrogen temperature molecular sieve absorber (7), under liquid nitrogen temperature, utilize molecular sieve to absorb HTO, residual gas is discharged to tritium cleaning system by exhaust-valve II (12); After HTO has been collected, liquid nitrogen temperature molecular sieve absorber (7) is suitably heated up, tritium gas is discharged and most of foreign gas continues to be absorbed by molecular sieve, what discharge adopts removal of impurities bed (10) to be discharged to tritium cleaning system by exhaust-valve I (9) after removing foreign gas containing tritium gas.
2. HTO gathering-device according to claim 1, is characterized in that: on described vacuum gooster pump (1) pump head, be provided with buffering dedusting protector.
3. HTO gathering-device according to claim 1, is characterized in that: described cold-trap refrigeratory (3) is outside equipped with muff (6).
4. HTO gathering-device according to claim 1, is characterized in that: described liquid nitrogen temperature molecular sieve absorber (7) is outside equipped with vacuum heat-insulating layer (8), and top is provided with heat insulation cover plate, temp probe and exhaust-valve II (12).
5. HTO gathering-device according to claim 1, is characterized in that: described removal of impurities bed (10) is outside equipped with heating jacket (11), and top is provided with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420315799.9U CN203882634U (en) | 2014-06-16 | 2014-06-16 | Tritium water collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420315799.9U CN203882634U (en) | 2014-06-16 | 2014-06-16 | Tritium water collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882634U true CN203882634U (en) | 2014-10-15 |
Family
ID=51683109
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420315799.9U Expired - Fee Related CN203882634U (en) | 2014-06-16 | 2014-06-16 | Tritium water collecting device |
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|---|---|
| CN (1) | CN203882634U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167233A (en) * | 2014-06-16 | 2014-11-26 | 中国工程物理研究院核物理与化学研究所 | Tritium water collecting device |
| CN104538074A (en) * | 2014-12-03 | 2015-04-22 | 中国核动力研究设计院 | Tritium trap device used for removing tritium in helium-3 gas, and tritium-removing method |
| CN106659975B (en) * | 2014-07-01 | 2018-11-02 | Gct股份有限公司 | The method that tritiated water is detached from light-water |
| CN112999869A (en) * | 2021-03-04 | 2021-06-22 | 中国人民解放军陆军炮兵防空兵学院 | Device and method for continuously extracting tritium from fusion reactor liquid metal lithium-lead alloy |
-
2014
- 2014-06-16 CN CN201420315799.9U patent/CN203882634U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167233A (en) * | 2014-06-16 | 2014-11-26 | 中国工程物理研究院核物理与化学研究所 | Tritium water collecting device |
| CN106659975B (en) * | 2014-07-01 | 2018-11-02 | Gct股份有限公司 | The method that tritiated water is detached from light-water |
| CN104538074A (en) * | 2014-12-03 | 2015-04-22 | 中国核动力研究设计院 | Tritium trap device used for removing tritium in helium-3 gas, and tritium-removing method |
| CN112999869A (en) * | 2021-03-04 | 2021-06-22 | 中国人民解放军陆军炮兵防空兵学院 | Device and method for continuously extracting tritium from fusion reactor liquid metal lithium-lead alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20190616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |