CN204891541U - Tritiated water recovery unit - Google Patents
Tritiated water recovery unit Download PDFInfo
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- CN204891541U CN204891541U CN201520675942.XU CN201520675942U CN204891541U CN 204891541 U CN204891541 U CN 204891541U CN 201520675942 U CN201520675942 U CN 201520675942U CN 204891541 U CN204891541 U CN 204891541U
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- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 title claims abstract description 167
- 238000011084 recovery Methods 0.000 title abstract description 18
- 239000002808 molecular sieve Substances 0.000 claims abstract description 17
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003463 adsorbent Substances 0.000 claims description 159
- 239000007789 gas Substances 0.000 abstract description 118
- 238000000034 method Methods 0.000 abstract description 24
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 abstract description 17
- 229910052722 tritium Inorganic materials 0.000 abstract description 17
- 238000001179 sorption measurement Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000012159 carrier gas Substances 0.000 abstract description 2
- 240000000233 Melia azedarach Species 0.000 abstract 1
- 230000008569 process Effects 0.000 description 15
- 238000010521 absorption reaction Methods 0.000 description 11
- 229920006395 saturated elastomer Polymers 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000013461 design Methods 0.000 description 8
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses a tritiated water recovery unit, including tritiated water feeding device, the 2nd gas circulation pump, condenser, tritiated water storage jar and inside first adsorption bed and the third adsorption bed of all loading the 5A molecular sieve, tritiated water feeding device connects first adsorption bed and constitutes the tritiated water and gets rid of the return circuit, the 2nd gas circulation pump, first adsorption bed, condenser and third adsorption bed connect gradually to third adsorption bed hui lian makes the 2nd gas circulation pump, first adsorption bed, condenser and third adsorption bed constitute a tritiated water and retrieves the return circuit in the condenser input, tritiated water storage jar connection condenser output. The utility model discloses need not adopt extra carrier gas can realize the recovery of tritiated water in the gas to only export liquid tritiated water, the operation in -process can not produce all the other tritiated waste, safe and reliable, simultaneously, will the utility model discloses on being connected to the tooling in tritium technology laboratory, can realize the continuous recovery of tritiated water in the different kinds of gases.
Description
Technical field
The utility model relates to a kind of retracting device, and what be specifically related to is a kind of tritiated water retracting device.
Background technology
As everyone knows, tritium is the isotope of hydrogen, is a kind of expensive strategic material, is also the nucleic with beta activity simultaneously.Tritiated water is the oxide morphology of tritium, and tritium generates tritiated water easily via oxidation reaction or exchange reaction under the atmosphere having water or oxygen; As tritium technological experiment room except tritium system, in order to reduce the content of tritium, the normal method of catalytic oxidation that adopts generates tritiated water.In addition, when tritium leakage accident occurs, the water vapour in tritium and gas can react generation tritiated water.
The tritiated water produced under above-mentioned operating mode, usual employing molecular sieve adsorption is removed, such as China Patent No. is ZL201420315799.9, utility model creates the patented technology that name is called " tritiated water gathering-device ", and China Patent No. be ZL201420780775.0, utility model creates name and is called the patented technology of " a kind of heavy duty detergent detritiation purifier ", all to this has been elaboration.But after molecular sieve adsorption is saturated, need to carry out thermal regeneration to recover its water absorbing capacity to molecular sieve, this process will produce a large amount of tritiated waters, and is generally adopt condensation method to carry out tritiated water recovery at present.This kind of method is the principle utilizing water vapour dew point to decline with temperature, the form that water vapour changes solid ice into is reclaimed, and this not only needs to adopt the special low temperature equipment of mechanical compress refrigeration, conductor refrigeration or liquid nitrogen cooling, but also need to carry out the design of cold-trap process pipe, making ice blocks.But these all can cause the construction cost of tritiated water recovery system and operating cost to increase, and operation can be made to control to become complicated, reliability is not high.
Due to the resource shortage of tritium; and the bio-toxicity of tritiated water is 25000 times of molecular state tritium; therefore from the viewpoint of environmental protection and the utilization of resources two, a kind of system efficient, reliable and with low cost of design is needed to reclaim the tritiated water in gas.
Utility model content
For the deficiency of above-mentioned technology, the utility model provides a kind of tritiated water retracting device, not only can remove tritiated water well from gas, and has the function of tritiated water recovery.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of tritiated water retracting device, comprises the first adsorbent bed and the 3rd adsorbent bed that tritiated water feedway, the second gas circulator, condenser, tritiated water storage tank and inside are all filled with 5A molecular sieve; Described tritiated water feedway is connected with the first adsorbent bed and forms tritiated water removes loop; Described second gas circulator, the first adsorbent bed, condenser are connected successively with the 3rd adsorbent bed, and the 3rd adsorbent bed is returned and is connected in condenser input, make the second gas circulator, the first adsorbent bed, condenser, the 3rd adsorbent bed and condenser form a tritiated water and reclaim loop; Described tritiated water storage tank is connected with condenser output.
Specifically, described tritiated water feedway comprises the technological equipment be equipped with containing tritiated water gas, and the first gas circulator be simultaneously connected with this technological equipment and the first adsorbent bed; Described first adsorbent bed is connected with technological equipment.
As preferably, described technological equipment is to produce the equipment of tritiated water or the facility containing tritiated water.
For convenience of the continued operation of gas removal tritiated water, the utility model also comprises and being connected and second adsorbent bed in parallel with the first adsorbent bed with the first gas circulator, the second gas circulator and condenser respectively, and this second adsorbent bed inside is filled with 5A molecular sieve equally.
Further, described first gas circulator, between the first adsorbent bed and condenser by first triple valve connect, this first gas circulator, between the second adsorbent bed and condenser by second triple valve connect; Described second gas circulator, between the first adsorbent bed and technological equipment by the 3rd triple valve connect, this second gas circulator, between the second adsorbent bed and technological equipment by the 4th triple valve connect.
For convenience of the continued operation that tritiated water is collected, the utility model also comprises and being connected with the second gas circulator and condenser respectively and four adsorbent bed in parallel with the 3rd adsorbent bed, and the 4th adsorbent bed inside is filled with 5A molecular sieve equally.
Again further, connected by the 5th triple valve between described second gas circulator and the 3rd adsorbent bed, connected by the 6th triple valve between this second gas circulator and the 4th adsorbent bed; Described 3rd is connected by the 7th triple valve between adsorbent bed and condenser; Described 4th is connected by the 8th triple valve between adsorbent bed and condenser.
Further, described first gas circulator and between the first adsorbent bed and the second adsorbent bed, the second gas circulator and between the first adsorbent bed and the second adsorbent bed, the second gas circulator and be equipped with flow controller between the 3rd adsorbent bed and the 4th adsorbent bed.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model is by arranging tritiated water feedway, gas circulator, condenser, tritiated water storage tank and being filled with the adsorbent bed of 5A molecular sieve, and the annexation devised between all parts, thus achieve the complete design of tritiated water recovery process in gas, the utility model not only has tritiated water in conventional gas and removes function, and possess the function of tritiated water recovery, the recovery of tritiated water in gas can be realized continuously.
(2) the utility model adopts adsorbent bed as the assembly reclaiming tritiated water from gas, and adopt function admirable and cheap 5A molecular sieve as the filler of adsorbent bed, utilize ripe molecular sieve water absorption technique the tritiated water in gas can be removed, avoid and need to adopt special cryotrap, therefore, relative to traditional tritiated water condensation recycling method, the utility model not only structure is simple, with low cost, and it is easy to run control.
(3) the utility model only need using the gas (can be inert gas or air) in technological equipment as working media, do not need to introduce the recovery that extra gas can realize tritiated water from outside, due to can not tritiated waste be increased newly in the process of plant running, therefore safe and reliable to operation.
(4) the utility model has been arranged in parallel the second adsorbent bed and the 4th adsorbent bed, can with the first adsorbent bed and the 3rd adsorbent bed alternate run, be independent of each other, one of them adsorbent bed is for adsorbing tritiated water, another carries out by thermal desorption simultaneously, realize regeneration, so also ensure that the uninterrupted operation of whole retracting device, significantly improve the operating efficiency of device.
(5) the utility model switches by adopting the working method of multiple triple valve to all parts, under the function prerequisite not affecting whole device, not only easy to operate, and effectively controls the equipment volume of device.
(6) the utility model is also provided with flow controller, the suitably flow of adjustments of gas flow media and flow velocity in the process can run at the utility model, thus improves the safety and stability of device operation further.
(7) the utility model is reasonable in design, practical, with low cost, and can continuous operation, be connected on the technological equipment of tritium technological experiment room, the continuous recovery of tritiated water in dissimilar gas can be realized, therefore, the utility model has good promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model-embodiment.
Fig. 2 is the first using state figure of the utility model-embodiment.
Fig. 3 is the second using state figure of the utility model-embodiment.
Fig. 4 is the third using state figure of the utility model-embodiment.
Wherein, the parts name that Reference numeral is corresponding is called:
1-technological equipment, 2-first gas circulator, 3-flow controller, 4-first triple valve, 5-first adsorbent bed, 6-the 3rd triple valve, 7-second triple valve, 8-second adsorbent bed, 9-the 4th triple valve, 10-second gas circulator, 11-condenser, 12-tritiated water storage tank, 13-the 7th triple valve, 14-the 3rd adsorbent bed, 15-the 5th triple valve, 16-the 8th triple valve, 17-the 4th adsorbent bed, 18-the 6th triple valve, 19-pressure sensor, 20-humidity sensor.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment
As shown in Figure 1, the utility model provides a kind of device that can reclaim tritiated water from gas, is mainly used in nuclear facilities tritiate and the tritiated water process aspect in tritium technique.The utility model comprises tritiated water feedway, the first adsorbent bed 5, second gas circulator 10, condenser 11, tritiated water storage tank 12 and the 3rd adsorbent bed 14.Described first adsorbent bed 5 and the 3rd adsorbent bed 14 inside are all filled with 5A molecular sieve, and described tritiated water feedway for providing the gas containing tritiated water in the first adsorbent bed 5, so that the tritiated water in gas removes by the first adsorbent bed 5.This tritiated water feedway comprises the technological equipment 1 be equipped with containing tritiated water gas, and the first gas circulator 2 be simultaneously connected with this technological equipment 1 and the first adsorbent bed 5; Described first adsorbent bed 5 is connected with technological equipment 1; Technological equipment 1, first gas circulator 2 and the first adsorbent bed 5 form a tritiated water and remove loop.Technological equipment 1 in the present embodiment can be equipment containing tritiated water or space, as the catalytic oxidation bed of detritiation process; Also can be the glove box containing tritiated water or room, the gas componant containing tritiated water can be air or inert gas.
Described second gas circulator 10 is connected with the first adsorbent bed 5 and the 3rd adsorbent bed 14 simultaneously, described condenser 11 is also connected with the first adsorbent bed 5 and the 3rd adsorbent bed 14 simultaneously, second gas circulator 10, first adsorbent bed 5, condenser 11 and the 3rd adsorbent bed 14 form a tritiated water and reclaim loop, for reclaiming the tritiated water collected in the first adsorbent bed 5, and collected in the tritiated water storage tank 12 be connected with condenser 11 output.
Reclaim the switching between loop for convenience of tritiated water removal loop and tritiated water, in the present embodiment, connected by the first triple valve 4 between the first gas circulator 2, first adsorbent bed 5 and condenser 11; Connected by the 3rd triple valve 6 between second gas circulator 10, first adsorbent bed 5 and process equipment 1; Connected by the 5th triple valve 15 between second gas circulator 10 and the 3rd adsorbent bed 14; Connected by the 7th triple valve 13 between 3rd adsorbent bed 14 and condenser 11.
Also be provided with the second adsorbent bed 8 and the 4th adsorbent bed 17, and be also all filled with 5A molecular sieve in the second adsorbent bed 8 and the 4th adsorbent bed 17.The second described adsorbent bed 8 is in parallel with the first adsorbent bed 5, and the 4th adsorbent bed 17 is then in parallel with the 3rd adsorbent bed 14.Adsorbent bed in parallel can realize alternate run, and also for ease of and facilitate tritiated water to remove loop and tritiated water to reclaim switching between loop, in the present embodiment, connected by the second triple valve 7 between the first gas circulator 2, second adsorbent bed 8 and condenser 11; Connected by the 4th triple valve 9 between second gas circulator 10, second adsorbent bed 8 and process equipment 1; Connected by the 6th triple valve 18 between second gas circulator 10 and the 4th adsorbent bed 17; Connected by the 8th triple valve 16 between 4th adsorbent bed 17 and condenser 11.
According to the device reclaiming tritiated water from gas that above-mentioned functions describes, introduce the flow process that the present embodiment reclaims tritiated water from gas below, the gas containing tritiated water that the present embodiment adopts is air.
As shown in figs. 2 to 4, concrete the says, the realization flow of the present embodiment comprises tritiated water and removes pattern and tritiated water take-back model.
Pattern one removed by tritiated water:
As shown in Figure 2, this pattern comprises the following steps:
(1) switch the first triple valve and the 3rd triple valve, make technological equipment, the first gas circulator, the first adsorbent bed formation tritiated water removal loop, all the other valves be connected with this loop are in closed condition;
(2) the first gas circulator is opened;
(3) gas containing tritiated water in technological equipment is pumped in the first adsorbent bed by the first gas circulator, and the first adsorbent bed, by the tritiated water absorption in gas, makes gas removal tritiated water;
(4) remove the gas after tritiated water and be back to technological equipment via the first adsorbent bed;
(5) circulation step (3), (4), until the first adsorbent bed absorption is saturated.
Hollow arrow in Fig. 2 represents the gas flow of dry gas, and filled arrows represents the gas flow containing tritiated water.After the first adsorbent bed is saturated, need to be converted to tritiated water removal pattern two work on.
Pattern two removed by tritiated water:
As shown in Figure 3, this pattern comprises the following steps:
(1) after the first adsorbent bed absorption is saturated, switch the second triple valve and the 4th triple valve, make technological equipment, the first gas circulator, the second adsorbent bed formation tritiated water removal loop; Switch the first triple valve and the 3rd triple valve simultaneously, make adsorbent bed 1 remove loop from tritiated water and disconnect;
(2) the first gas circulator is opened;
(3) gas containing tritiated water in technological equipment is pumped in the second adsorbent bed by the first gas circulator, and the second adsorbent bed, by the tritiated water absorption in gas, makes gas removal tritiated water;
(4) remove the gas after tritiated water and be back to technological equipment via the second adsorbent bed;
(5) circulation step (3), (4), until the second adsorbent bed absorption is saturated.
Hollow arrow in Fig. 3 represents that tritiated water is removed loop dry gas and flowed to, and filled arrows represents the gas flow containing tritiated water.Remove when pattern two works at tritiated water and need to regenerate the first adsorbent bed and tritiated water recycling.
Tritiated water take-back model one:
After first adsorbent bed is saturated, its regeneration and tritiated water recycling, as shown in Figure 3, this pattern comprises the following steps:
(1) while pattern two operation removed by tritiated water, switch the 5th triple valve and the 7th triple valve, make the second gas circulator, the first adsorbent bed, condenser and the 3rd adsorbent bed form tritiated water and reclaim loop;
(2) the second gas circulator is opened;
(3) second gas circulators extract the dry gas in tritiated water retracting device, and enter into the first adsorbent bed with contrary airflow direction, heat the first adsorbent bed simultaneously, its temperature is made to reach more than 300 DEG C, tritiated water in first adsorbent bed is heated continuous desorb, form tritiated water steam, then along with air-flow enters into condenser;
(4) most of tritiated water steam-condensation is become tritiated water by condenser, and collects in tritiated water storage tank; Meanwhile, the tritiated water steam that small part remains enters into the 3rd adsorbent bed, is adsorbed, remove the tritiated water in gas by the 3rd adsorbent bed;
(5) gas removing tritiated water turns back in pipeline, and continues to be pumped in the first adsorbent bed by the second gas circulator;
(6) circulation step (3) ~ (5), until the 3rd adsorbent bed absorption is saturated.
Dotted line hollow arrow in Fig. 3 represents that tritiated water reclaims the flow direction of loop dry gas, and dotted line filled arrows represents the flow direction of tritiated water steam and tritiated water.After the 3rd adsorbent bed is saturated, needs to be converted to tritiated water take-back model two proceeds tritiated water recovery.
Tritiated water take-back model two:
As shown in Figure 4, this pattern comprises the following steps:
(1) after the 3rd adsorbent bed is saturated, switch the 6th triple valve and the 8th triple valve, make the second gas circulator, the first adsorbent bed, condenser and the 4th adsorbent bed form tritiated water and reclaim loop; Switch the 5th triple valve and the 7th triple valve simultaneously, make the 3rd adsorbent bed reclaim loop from tritiated water and disconnect;
(2) the second gas circulator is opened;
(3) second gas circulators extract the dry gas in tritiated water retracting device, and enter into the first adsorbent bed with contrary airflow direction, bed temperature reaches more than 300 DEG C, tritiated water in first adsorbent bed is heated continuous desorb, form tritiated water steam, then along with air-flow enters into condenser;
(4) the second gas circulator and the flow controller between the 3rd adsorbent bed and the 4th adsorbent bed is opened, a part of dry gas that second gas circulator is extracted enters into the 3rd adsorbent bed with contrary airflow direction, heat the 3rd adsorbent bed simultaneously, its temperature is made to reach more than 300 DEG C, tritiated water in 3rd adsorbent bed is heated continuous desorb, form tritiated water steam, then along with air-flow enters into condenser;
(5) most of tritiated water steam-condensation is become tritiated water by condenser, and collects in tritiated water storage tank; Meanwhile, the tritiated water steam that small part remains enters into the 4th adsorbent bed, is adsorbed, remove the tritiated water in gas by the 4th adsorbent bed;
(6) gas removing tritiated water turns back in pipeline, and continues to be pumped in the first adsorbent bed by the second gas circulator;
(7) circulation step (4) ~ (6), until after the complete desorb of the 3rd adsorbent bed tritiated water, the flow controller of entrance of blinding off a line;
(8) circulation step (3), (5), (6), until the 4th adsorbent bed absorption is saturated.
Hollow arrow in Fig. 4 represents that tritiated water is removed dry gas in loop and flowed to, and filled arrows represents the gas flow containing tritiated water; Dotted line hollow arrow represents that tritiated water reclaims the flow direction of dry gas in loop, and dotted line filled arrows represents the flow direction of tritiated water steam and tritiated water.
First and second above-mentioned adsorbent bed and third and fourth adsorbent bed all adopt alternation pattern, unsaturation adsorbent bed carry out gas detritiation water chemical treatment, the adsorbent bed reached capacity then carries out regeneration and processes, and so just can realize removal and the recovery of tritiated water simultaneously.Adopt two position three-way valve can realize the switching of adsorbent bed, without the need to closing gas circulator.So make four adsorbent bed alternate cycles work between two, just can realize a large amount of removal and the recycling of tritiated water in gas.
In above-described embodiment, when performing tritiated water removal and tritiated water reclaims two kinds of patterns, for guaranteeing the security operated further, the utility model is also provided with multiple flow controller 3, pressure sensor 19 and humidity sensor 20 respectively.According to the data that pressure sensor 19 and humidity sensor 20 Real-Time Monitoring obtain, operating personnel can adjust the duty of all parts, particularly adsorbent bed in real time, thus not only increase the operating efficiency of device, and eliminate the potential safety hazard that may exist.Such as, when water content is greater than 1ppm in gas, carry out gas circuit conversion immediately, be changed to another adsorbent bed through regeneration process and continue to remove tritiated water; Pressure sensor can prevent pipeline superpressure.And utilize the flow-control of flow controller 3, then the flow of gas flowing media and flow velocity can be regulated, thus improve the stability of plant running.
In said apparatus structure, the first gas circulator 2 selects membrane pump, and adopts positive displacement multiple layer metal diaphragm to drive the pattern of carrying, and so can not pollute process gas, and can avoid leaking containing tritium gas.All-metal mass flow controller selected by flow controller, also can not pollute process gas, and can avoid equally leaking containing tritium gas.Adsorbent bed is fixed-bed structure, and preferably adopt particle diameter to be that the 5A molecular sieve of Φ 1 ~ 2mm is as packing material, the saturated water absorption capacity of this packing material is 20% ~ 25%, and there is excellent water-absorption kinetics performance, in actual applications, specific design adsorbent bed scale can be carried out according to the tritiated water treating capacity under actual condition, thus avoid frequent regeneration.
Second gas circulator 10 selects bellowspump, and it adopts, and positive displacement bellows is flexible drives the pattern of carrying, and can not pollute equally to process gas, and can avoid leaking containing tritium gas.Condenser 11 selection standard shell-and-tube heat exchanger, shell side leads to cooling water, and tube side leads to working gas, gas can be cooled to room temperature, carries out Selection and Design according to gas flow and the gateway temperature difference; And be provided with tritiated water recovery channel in the connecting pipe of tube side outlet, pipeline is provided with valve and carries out break-make control.Tritiated water storage tank 12 selects the stainless cylinder of steel of heavy wall, and the inlet channel of storage tank is provided with the connecting sleeve with the tritiated water recovery channel of condenser, and water inlet pipe is provided with valve carries out break-make control, avoids tritiated water to spread in room atmosphere.
Threeway two-position valve then selected by triple valve, when one end is communicated with, the other end is closed, such as, when the first adsorbent bed 5 is in the duty of the tritiated water removed in gas, first triple valve 4 is communicated with it with the 3rd triple valve 6, and now the second adsorbent bed 8 is in reproduced state, and coupled valve second triple valve 7 and the 4th triple valve 9 are closed.
On the basis of the utility model based on the molecular sieve water absorption technique of maturation, by Structure and energy design cleverly, achieve the object reclaiming tritiated water from gas well.Not only structure is simple for the utility model, reliability is strong, and does not need to adopt extra carrier gas can realize the recovery of tritiated water in gas, and therefore with low cost, simple operation, operating flexibility are large.Further, the utility model in the process run, output only have liquid tritiated water, do not produce other tritiated waste any, thus collected tritiated water also has the high advantage of purity.Meanwhile, utilize the mode of adsorbent bed alternation, the utility model can continuous operation, after on the technological equipment being connected to tritium technological experiment room, can realize the continuous recovery of tritiated water in dissimilar gas.Therefore, compared to existing technology, technological progress is obvious, has substantial feature and progress for the utility model.
Above-described embodiment is only the utility model preferred embodiment; it is not the restriction to the utility model protection domain; in every case design principle of the present utility model being adopted, and the change carried out non-creativeness work on this basis and make, all should belong within protection domain of the present utility model.
Claims (8)
1. a tritiated water retracting device, it is characterized in that, comprise the first adsorbent bed (5) and the 3rd adsorbent bed (14) that tritiated water feedway, the second gas circulator (10), condenser (11), tritiated water storage tank (12) and inside are all filled with 5A molecular sieve; Described tritiated water feedway is connected with the first adsorbent bed (5) and forms tritiated water removes loop; Described second gas circulator (10), the first adsorbent bed (5), condenser (11) are connected successively with the 3rd adsorbent bed (14), and the 3rd adsorbent bed (14) is returned and is connected in condenser (11) input, make the second gas circulator, the first adsorbent bed, condenser and the 3rd adsorbent bed form a tritiated water and reclaim loop; Described tritiated water storage tank (12) is connected with condenser (11) output.
2. a kind of tritiated water retracting device according to claim 1, it is characterized in that, described tritiated water feedway comprises the technological equipment (1) be equipped with containing tritiated water gas, and the first gas circulator (2) be simultaneously connected with this technological equipment (1) and the first adsorbent bed (5); Described first adsorbent bed (5) is connected with technological equipment (1).
3. a kind of tritiated water retracting device according to claim 2, is characterized in that, described technological equipment (1) is to produce the equipment of tritiated water or the facility containing tritiated water.
4. a kind of tritiated water retracting device according to Claims 2 or 3, it is characterized in that, also comprise and being connected and second adsorbent bed (8) in parallel with the first adsorbent bed (5) with the first gas circulator (2), the second gas circulator (10) and condenser (11) respectively, this second adsorbent bed (8) inside is filled with 5A molecular sieve equally.
5. a kind of tritiated water retracting device according to claim 4, it is characterized in that, described first gas circulator (2), between the first adsorbent bed (5) and condenser (11) by the first triple valve (4) connect, this first gas circulator (2), between the second adsorbent bed (8) and condenser (11) by the second triple valve (7) connection; Described second gas circulator (10), between the first adsorbent bed (5) and technological equipment (1) by the 3rd triple valve (6) connect, this second gas circulator (10), between the second adsorbent bed (8) and technological equipment (1) by the 4th triple valve (9) connection.
6. a kind of tritiated water retracting device according to claim 5, it is characterized in that, also comprise and being connected with the second gas circulator (10) and condenser (11) respectively and four adsorbent bed (17) in parallel with the 3rd adsorbent bed (14), the 4th adsorbent bed (17) inside is filled with 5A molecular sieve equally.
7. a kind of tritiated water retracting device according to claim 6, it is characterized in that, connected by the 5th triple valve (15) between described second gas circulator (10) and the 3rd adsorbent bed (14), connected by the 6th triple valve (18) between this second gas circulator (10) and the 4th adsorbent bed (17); Connected by the 7th triple valve (13) between described 3rd adsorbent bed (14) and condenser (11); Connected by the 8th triple valve (16) between described 4th adsorbent bed (17) and condenser (11).
8. a kind of tritiated water retracting device according to claim 7, it is characterized in that, described first gas circulator (2) and between the first adsorbent bed (5) and the second adsorbent bed (8), the second gas circulator (10) and between the first adsorbent bed (5) and the second adsorbent bed (8), the second gas circulator (10) and be equipped with flow controller (3) between the 3rd adsorbent bed (14) and the 4th adsorbent bed (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675942.XU CN204891541U (en) | 2015-09-02 | 2015-09-02 | Tritiated water recovery unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520675942.XU CN204891541U (en) | 2015-09-02 | 2015-09-02 | Tritiated water recovery unit |
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| CN204891541U true CN204891541U (en) | 2015-12-23 |
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| CN201520675942.XU Expired - Fee Related CN204891541U (en) | 2015-09-02 | 2015-09-02 | Tritiated water recovery unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032122A (en) * | 2015-09-02 | 2015-11-11 | 中国工程物理研究院材料研究所 | Tritiated water recycling device and achieving method thereof |
| CN106840766A (en) * | 2017-01-06 | 2017-06-13 | 中国工程物理研究院核物理与化学研究所 | A kind of sampling method for air tritiated water |
| CN106971766A (en) * | 2017-04-17 | 2017-07-21 | 中国工程物理研究院核物理与化学研究所 | The retracting device of HTO in a kind of molecular sieve |
-
2015
- 2015-09-02 CN CN201520675942.XU patent/CN204891541U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032122A (en) * | 2015-09-02 | 2015-11-11 | 中国工程物理研究院材料研究所 | Tritiated water recycling device and achieving method thereof |
| CN106840766A (en) * | 2017-01-06 | 2017-06-13 | 中国工程物理研究院核物理与化学研究所 | A kind of sampling method for air tritiated water |
| CN106971766A (en) * | 2017-04-17 | 2017-07-21 | 中国工程物理研究院核物理与化学研究所 | The retracting device of HTO in a kind of molecular sieve |
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