CN208771120U - The device of radon is removed in a kind of krypton xenon extraction process - Google Patents
The device of radon is removed in a kind of krypton xenon extraction process Download PDFInfo
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- CN208771120U CN208771120U CN201820254004.6U CN201820254004U CN208771120U CN 208771120 U CN208771120 U CN 208771120U CN 201820254004 U CN201820254004 U CN 201820254004U CN 208771120 U CN208771120 U CN 208771120U
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- radon
- xenon
- krypton
- krypton xenon
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Abstract
The utility model relates to the device of radon is removed in a kind of krypton xenon extraction process, it includes except radon purifier, the radon purifier that removes includes at least 1 radon absorber, krypton xenon feeding pipe is arranged in the entrance of the radon absorber, and the outlet setting of the radon absorber is connected to the krypton xenon discharging pipeline of krypton xenon refined unit；The radon absorber also sets up regeneration pipeline and bypass line.Compared with prior art, the utility model eliminates influence of the krypton and xenon recovering plant to human health by using the radon impurity in reasonable adsorption design removal krypton xenon raw material；Regeneration pipeline and bypass line are set to realize the regeneration of adsorbent simultaneously, reduce the loss of material, reduces cost of material；The utility model be separately provided except radon adsorber volume it is smaller, it is easy to operate, with entirely purification ice chest do radiation protection processing compared with, investment can be reduced, it is convenient for safeguarding.
Description
Technical field
The utility model relates to the dress of radon is removed in a kind of krypton xenon extraction process more particularly to a kind of krypton xenon extraction process
It sets.
Background technique
Chemical element radon is also referred to as Dong, is a kind of chemical element.The common elemental form of radon is radon gas, is colourless, nothing
It smells, tasteless inert gas, there is radioactivity.The chemical reaction torpescence of radon, radon are also difficult to react into other elements
For compound.Radon does not have known biological effect.Because radon is radgas, after in people's suction body, what radon decayed
Alpha particle can cause radiation injury in the respiratory system of people, cause lung cancer.
Contain micro radon in air, in krypton xenon extraction process, with the progress that krypton xenon is concentrated, the concentration of radon can also be got over
Come higher.Especially during krypton-xenon concentrate refines, the various isotopes concentrations of radon can reach peak, and decay generation
Radioactivity can have an impact human health.Since the half-life isotopes of radon are shorter, it is known that the radioactive isotope of radon has200Rn~226Rn is in totally 27.Wherein, longest-lived is222Rn, half-life period 3.82d.According to the characteristic that krypton xenon is concentrated, radon meeting
It concentrates in each tower bottom, has seriously affected the physical and mental health of operator；In the prior art by the purification of krypton xenon refined unit
Ice chest carries out radiation protection processing as a whole, at high cost, and more difficult maintenance.
Utility model content
The utility model is directed to the problems of the prior art, based on the high feature of radon consistence in current krypton xenon subtractive process,
The device that radon is removed in a kind of krypton xenon extraction process is provided, by using the radon in reasonable adsorption design removal krypton xenon raw material
Impurity eliminates influence of the krypton and xenon recovering plant to human health.
To achieve the above objectives, the present invention adopts the following technical solutions:
The utility model provides the device that radon is removed in a kind of krypton xenon extraction process comprising radon purifier is removed, it is described to remove
Radon purifier includes at least 1 radon absorber, and krypton xenon feeding pipe is arranged in the entrance of the radon absorber, the radon absorber
Outlet setting is connected to the krypton xenon discharging pipeline of krypton xenon refined unit.
In order to advanced optimize above-mentioned apparatus, the technical measures that the utility model is taken further include:
Further, the krypton xenon feeding pipe is connected to the bottom of the radon absorber, and the krypton xenon discharging pipeline connects
It is connected to the top of the radon absorber.
Further, adsorbent is loaded in the radon absorber, the adsorbent is in silica gel, active carbon, molecular sieve
One kind.
Further, bypass line is arranged in the radon absorber, and the both ends of the bypass line are respectively connected to described remove
Krypton xenon feeding pipe and krypton xenon the discharging pipeline of radon purifier.
Further, regeneration pipeline is arranged in the radon absorber, and the regeneration pipeline includes purging air inlet pipeline and purging
Outlet pipe.
Further, the purging air inlet pipeline is connected to the krypton xenon discharging pipeline, the purging outlet pipe connection
To the krypton xenon feeding pipe.
Further, the krypton xenon feeding pipe, krypton xenon discharging pipeline, bypass line, purging air inlet pipeline, purging outlet
Setting inlet valve, outlet valve, by-passing valve, purging intake valve and purging air outlet valve are respectively corresponded on pipeline.
Further, the purging air inlet pipeline is connected to the krypton xenon discharging pipeline in the upstream end of the outlet valve,
The purging outlet pipe is connected to the krypton xenon feeding pipe, the both ends of the bypass line at the downstream of the inlet valve
Krypton xenon feeding pipe and krypton xenon discharging pipeline are connected at the downstream of the upstream end of the inlet valve and the outlet valve respectively.
Further, described device further includes controller, and the controller is electrically connected to the krypton xenon inlet valve and bypass
Valve；Wherein, radon detector is set on the krypton xenon feeding pipe, and the radon detector is electrically connected to the controller.
Further, the krypton xenon refined unit includes level-one rectifying column, two-stage rectification tower, pure krypton column, thick xenon tower and pure
Xenon tower；Wherein, the krypton xenon discharging piping connection level-one rectifying column of the radon absorber, the tower top of level-one rectifying column are connected to master and change
Hot device, the tower bottom of level-one rectifying column are connected to two-stage rectification tower；Two-stage rectification top of tower is connected to pure krypton column, two-stage rectification tower bottom
Portion is connected to thick xenon tower, and thick xenon top of tower is connected to pure xenon column.
Further, the quantity of the radon absorber is 2, and to be arranged in parallel, 2 absorbers share bypass line,
Branch is arranged to be respectively used to 2 absorbers in regeneration pipeline.
The method of operation of above-mentioned apparatus is as follows: after the concentration of krypton xenon, the sum of the concentration of usually Krypton and xenon reaches
After 99% or more, referred to as krypton-xenon concentrate.It can enter krypton xenon refined unit, mainly rectifying, absorption or rectifying with
Adsorb the further separating-purifying that hybrid technique carries out krypton xenon.
Before mixture enters rectifying column, initially enter except radon purifier.Except radon purifier includes at least 1 absorption
Device contains adsorbent in absorber.According to the characteristic of radon, adsorbent can be specific silica gel, active carbon, molecular sieve etc..According to
The processing flow of krypton-xenon concentrate, radon gas content, the adsorbance of adsorbent determine loadings.Radon isotope longest half-life period
3.82d, adsorption time control more than 15 days or so.When adsorption time long enough, except radon purifier can need not regenerate.
When considering from volume and economic angle, except radon adsorbent volume is not sufficiently large, settable scavenging pipeline and purging
Valve, to be regenerated to except radon absorber.Reproduction time is short, can be concentrated by the way that bypass line is arranged for krypton xenon during regeneration
The continuous gas entry of object.
Compared with prior art, the utility model has the following beneficial effects:
The characteristic that the utility model utilizes radon easily to adsorb, is removed radon by using adsorbent, eliminates krypton and xenon recovering plant
Influence to human health；Regeneration pipeline and bypass line are set to realize the regeneration of adsorbent simultaneously, reduce the loss of material,
Reduce cost of material；Controller is also set up, when radon contents is lower in charging, raw material is directly passed through krypton xenon refined unit,
Processing step is reduced, drain on manpower and material resources is reduced.
Detailed description of the invention
Fig. 1 is the process signal that the device of radon is removed in one of an embodiment of the present invention krypton xenon extraction process
Figure；
Fig. 2 is the stream that the device of radon is removed in the krypton xenon extraction process for add in another embodiment of the utility model controller
Journey schematic diagram；
Appended drawing reference in figure is as follows:
1, krypton xenon feeding pipe；2, krypton xenon discharging pipeline；3, bypass line；4, air inlet pipeline is purged；5, escape pipe is purged
Road；6, radon absorber；7, krypton xenon refined unit；8, radon detector；9, controller；V1, inlet valve；V2, outlet valve；V3, bypass
Valve；V4, purging intake valve；V5, purging air outlet valve；C1, level-one rectifying column；C2, two-stage rectification tower；C3, pure krypton column；C4, thick xenon
Tower；C5, pure xenon column；E, main heat exchanger.
Specific embodiment
The device of radon is removed in a kind of krypton xenon extraction process of the utility model comprising radon purifier is removed, it is described except radon is pure
Change device and include at least 1 radon absorber, krypton xenon feeding pipe, the outlet of the radon absorber is arranged in the entrance of the radon absorber
The krypton xenon discharging pipeline for being connected to krypton xenon refined unit is set.
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
Embodiment 1
The present embodiment is the device that radon is removed in the krypton xenon extraction process of a preferred versions.
As shown in Figure 1, removing the device of radon in krypton xenon extraction process described in the present embodiment, including remove radon purifier, institute
It states except radon purifier includes 1 radon absorber 6, krypton xenon feeding pipe 1, the radon absorption is arranged in the bottom of the radon absorber 6
The top setting of device 6 is connected to the krypton xenon discharging pipeline 2 of krypton xenon refined unit 7；Silica gel is loaded in the radon absorber 6.
In the present embodiment, the setting regeneration pipeline of radon absorber 6 and bypass line 3, the two of the bypass line 3
End is respectively connected to the krypton xenon feeding pipe 1 except radon purifier 6 and krypton xenon discharging pipeline 2；The regeneration pipeline includes blowing
Air pipe 4 and purging outlet pipe 5 are swept into, the purging air inlet pipeline 4 is connected to the krypton xenon discharging pipeline 2, the purging
Outlet pipe 5 is connected to the krypton xenon feeding pipe 1.
In the present embodiment, the krypton xenon feeding pipe 1, krypton xenon discharging pipeline 2, bypass line 3, purging air inlet pipeline 4,
Setting inlet valve V1, outlet valve V2, by-passing valve V3, purging intake valve V4 and purging outlet are respectively corresponded on purging outlet pipe 5
Valve V5；And the purging air inlet pipeline 4 is connected to the krypton xenon discharging pipeline 2 in the upstream end of the outlet valve V2, it is described to blow
It scans out air pipe 5 and is connected to the krypton xenon feeding pipe 1, the both ends of the bypass line 3 at the downstream of the inlet valve V1
Krypton xenon feeding pipe 1 is connected at the downstream of the upstream end of the inlet valve V1 and the outlet valve V2 respectively and krypton xenon goes out
Expects pipe road 2.
In the present embodiment, the equipment that the krypton xenon refined unit 7 is included is the equipment in technique commonly used in the art,
Cooling capacity is provided by liquid nitrogen, and specially the refined unit includes level-one rectifying column C1, two-stage rectification tower C2, pure krypton column C3, thick xenon tower
C4 and pure xenon column C5；Wherein, the krypton xenon discharging pipeline 1 of the radon absorber 6 connects level-one rectifying column C1, level-one rectifying column C1
Tower top be connected to main heat exchanger E, the tower bottom of level-one rectifying column C1 is connected to two-stage rectification tower C2；At the top of two-stage rectification tower C2
It is connected to pure krypton column C3, the bottom two-stage rectification tower C2 is connected to thick xenon tower C4, is connected to pure xenon column C5 at the top of thick xenon tower C4.
Embodiment 2
The present embodiment is 1Nm with krypton-xenon concentrate flow3For/h, illustrate in krypton xenon extraction process described in embodiment 1
Remove the method for operation of the device of radon.
In the present embodiment, within the scope of in order to make radon radioactivity drop to health, consider that period half-life period is 4, note is most
4 times of long 3.82d, 15.28 days.The loadings that adsorbent is designed with this, during normal operation, filling large amount of adsorption in
At 15.28 days, it is believed that after adsorbent adsorbs radon gas, interior at runtime, radon partly declines, and adsorbent can continue to adsorb radon
Gas can not regenerate.Adsorbent can select specific silica gel, active carbon, molecular sieve.Adsorbing environment is room temperature.
If stopped or because certain reason causes the moment of air inflow to increase, when moment can adsorb full except radon absorber.It removes
Radon absorber needs regeneration treatment, when regeneration, such as needs continuous production, turns off inlet valve V1, outlet valve V2, open by-passing valve
V3.Then by the purging intake valve V4 supplying nitrogen of starting radon absorber 6, purging air outlet valve V5 discharge purging nitrogen is opened,
High altitude discharge is placed in atmosphere.Air inlet can such as be suspended, then can not open by-passing valve V3.
Embodiment 3
The present embodiment is the device that radon is removed in the krypton xenon extraction process of another preferred versions, it includes equipment and pipeline with
Embodiment 1 is most of identical, in addition to arranged below:
It is not shown in the figure, the present embodiment setting 2 absorbers in parallel, 2 absorbers share bypass line, regeneration pipeline
Branch is set to realize the independent regeneration of each absorber, 2 absorbers load active carbon and molecular sieve respectively, and above-mentioned setting guarantees
Wherein when 1 absorber adsorption saturation, the regeneration of the absorber is realized, at this point, another absorber can come into operation, guarantee radon
Removal；
As shown in Fig. 2, the present embodiment is also additionally arranged controller 9, the controller 9 is electrically connected to the krypton xenon inlet valve V1
With by-passing valve V3；Wherein, radon detector 8 is set on the krypton xenon feeding pipe 1, and the radon detector 8 is electrically connected to described
Controller 9, the setting position of the radon detector 8 are the upstream position at 3 access of bypass line；Wherein krypton xenon inlet valve V1 and
By-passing valve V3 is control switch valve.
The working principle of above controller 9 is as follows: radon detector 8 detects radon contents in krypton-xenon concentrate first,
And will test value and be sent to controller 9, when detected value is lower than setting value, controller 9 issues signal, krypton xenon inlet valve V1 is closed,
By-passing valve V3 is opened, krypton-xenon concentrate is directly entered krypton xenon refined unit 7；When detected value is higher than setting value, controller 9 issues letter
Number, krypton xenon inlet valve V1 is opened, by-passing valve V3 is closed, krypton-xenon concentrate enters the removal that radon absorber carries out radon.
As can be seen from the above embodiments, the characteristic that the utility model utilizes radon easily to adsorb, setting remove radon absorber, remove krypton xenon
Radon gas in concentration process, the utility model be separately provided except radon adsorber volume it is smaller, it is easy to operate, it is cold with entirely refining
Case does radiation protection processing and compares, and can reduce investment, convenient for safeguarding.
Specific embodiment of the utility model is described in detail above, but it is merely an example, this is practical new
Type is not restricted to particular embodiments described above.To those skilled in the art, any pair of the utility model carries out
Equivalent modifications and substitution also all among the scope of the utility model.Therefore, in the spirit and model for not departing from the utility model
Lower made equal transformation and modification are enclosed, should all be covered in the scope of the utility model.
Claims (10)
1. removing the device of radon in a kind of krypton xenon extraction process, which is characterized in that described to remove radon purifier including removing radon purifier
Including at least 1 radon absorber (6), krypton xenon feeding pipe (1) is arranged in the entrance of the radon absorber (6), the radon absorber
(6) outlet setting is connected to krypton xenon discharging pipeline (2) of krypton xenon refined unit (7).
2. in a kind of krypton xenon extraction process according to claim 1 remove radon device, which is characterized in that the krypton xenon into
Expects pipe road (1) is connected to the bottom of the radon absorber (6), and krypton xenon discharging pipeline (2) is connected to the radon absorber (6)
Top.
3. removing the device of radon in a kind of krypton xenon extraction process according to claim 1, which is characterized in that the radon absorption
Adsorbent is loaded in device (6), the adsorbent is selected from one of silica gel, active carbon, molecular sieve.
4. removing the device of radon in a kind of krypton xenon extraction process described in any one of claim 1 to 3, feature exists
In bypass line (3) are arranged in the radon absorber (6), and the both ends of the bypass line (3) are respectively connected to described except radon purifies
The krypton xenon feeding pipe (1) and krypton xenon of device discharge pipeline (2).
5. removing the device of radon in a kind of krypton xenon extraction process according to claim 4, which is characterized in that the radon absorption
Regeneration pipeline is arranged in device (6), and the regeneration pipeline includes purging air inlet pipeline (4) and purging outlet pipe (5).
6. removing the device of radon in a kind of krypton xenon extraction process according to claim 5, which is characterized in that described to be purged into
Air pipe (4) is connected to krypton xenon discharging pipeline (2), and the purging outlet pipe (5) is connected to the krypton xenon feeding pipe
(1)。
7. in a kind of krypton xenon extraction process according to claim 5 remove radon device, which is characterized in that the krypton xenon into
Expects pipe road (1), krypton xenon discharge pipeline (2), are right respectively on bypass line (3), purging air inlet pipeline (4), purging outlet pipe (5)
Inlet valve (V1), outlet valve (V2), by-passing valve (V3), purging intake valve (V4) and purging air outlet valve (V5) should be set.
8. removing the device of radon in a kind of krypton xenon extraction process according to claim 7, which is characterized in that described to be purged into
Air pipe (4) is connected to krypton xenon discharging pipeline (2), the purging outlet pipe in the upstream end of the outlet valve (V2)
(5) the krypton xenon feeding pipe (1), the both ends point of the bypass line (3) are connected at the downstream of the inlet valve (V1)
Krypton xenon feeding pipe (1) and krypton xenon are not connected at the downstream of the upstream end of the inlet valve (V1) and the outlet valve (V2)
It discharges pipeline (2).
9. removing the device of radon in a kind of krypton xenon extraction process according to claim 8, which is characterized in that described device is also
Including controller (9), the controller (9) is electrically connected to the krypton xenon inlet valve (V1) and by-passing valve (V3)；Wherein, described
Radon detector (8) are set on krypton xenon feeding pipe (1), the radon detector (8) is electrically connected to the controller (9).
10. removing the device of radon in a kind of krypton xenon extraction process according to claim 1, which is characterized in that the krypton xenon
Refined unit (7) includes level-one rectifying column (C1), two-stage rectification tower (C2), pure krypton column (C3), thick xenon tower (C4) and pure xenon column
(C5)；Wherein, krypton xenon discharging pipeline (2) of the radon absorber (6) is connected to level-one rectifying column (C1), level-one rectifying column (C1)
Tower top be connected to main heat exchanger (E), the tower bottom of level-one rectifying column (C1) is connected to two-stage rectification tower (C2)；Two-stage rectification tower
(C2) it is connected at the top of pure krypton column (C3), the bottom of two-stage rectification tower (C2) is connected to thick xenon tower (C4), thick xenon tower (C4)
Top is connected to pure xenon column (C5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254004.6U CN208771120U (en) | 2018-02-12 | 2018-02-12 | The device of radon is removed in a kind of krypton xenon extraction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820254004.6U CN208771120U (en) | 2018-02-12 | 2018-02-12 | The device of radon is removed in a kind of krypton xenon extraction process |
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|---|---|
| CN208771120U true CN208771120U (en) | 2019-04-23 |
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ID=66145465
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023697A (en) * | 2019-11-20 | 2020-04-17 | 郝文炳 | Method and device for reducing liquid nitrogen usage amount in refining of krypton and xenon |
| CN114508899A (en) * | 2022-02-09 | 2022-05-17 | 上海交通大学四川研究院 | Cryogenic rectification system and process capable of operating in forward and reverse directions to obtain ultra-pure xenon |
-
2018
- 2018-02-12 CN CN201820254004.6U patent/CN208771120U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023697A (en) * | 2019-11-20 | 2020-04-17 | 郝文炳 | Method and device for reducing liquid nitrogen usage amount in refining of krypton and xenon |
| CN114508899A (en) * | 2022-02-09 | 2022-05-17 | 上海交通大学四川研究院 | Cryogenic rectification system and process capable of operating in forward and reverse directions to obtain ultra-pure xenon |
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