CN204693950U - For the nitrogen gas supply device that rare gas is purified - Google Patents
For the nitrogen gas supply device that rare gas is purified Download PDFInfo
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- CN204693950U CN204693950U CN201520408002.4U CN201520408002U CN204693950U CN 204693950 U CN204693950 U CN 204693950U CN 201520408002 U CN201520408002 U CN 201520408002U CN 204693950 U CN204693950 U CN 204693950U
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- rare gas
- nitrogen
- liquid nitrogen
- supply device
- condenser
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Abstract
The utility model discloses a kind of nitrogen gas supply device of purifying for rare gas, comprising: for generation of the oxygenerator of liquid nitrogen, described oxygenerator is provided with two-way and exports, and a road exports and is connected to liquid nitrogen separator, and another road exports and is connected to Dewar tank; Described liquid nitrogen separator is connected with the condenser for condensation rare gas; The bottom of described condenser is connected with the rectifying column for extracting high-purity rare gas; Described rectifying column is provided with rare gas control valve and rare gas products export valve; Described Dewar tank is also connected with condenser.Structure of the present utility model is owing to decreasing compressor, and equipment operation maintenance cost is low, and avoids the links such as frequent start-stop compressor and cylinder filling, and manual operation load greatly reduces, and production efficiency is effectively promoted.
Description
Technical field
A kind of nitrogen gas supply device of purifying for rare gas of the utility model.
Background technology
O in high pure nitrogen
2, H
2, CO
2and each impurity composition content such as moisture is much lower compared with pure nitrogen gas, see the following form, one is freeze after can preventing excess moisture from entering rectifying column and affect heat exchange, and two is that nitrogen gas purity is higher, is more conducive to the accurate control of temperature.
| N 2(％) | O 2(％) | H 2(％) | CO(％) | CO 2(％) | CH 4(％) | H 2O(％) | |
| Purity nitrogen | 99.99 | 50 | 15 | 5 | 10 | 5 | 15 |
| High Purity Nitrogen | 99.999 | 3 | 1 | 1 | 1 | 1 | 3 |
Existing nitrogen gas supply mode has the directly bottled high pure nitrogen of buying, but this nitrogen gas supply mode cost is higher, seldom adopts in industry.In addition, also having a kind of supply mode to be by the industrial nitrogen of oxygenerator output, i.e. the pure nitrogen gas of 99.99%, by sending into nitrogen purifier after compressor compresses to 15Mpa, removing O wherein by catalyst combustion reaction
2, H
2, CH
4deng impurity, CO absorption simultaneously
2and H
2o, finally purifies to the high pure nitrogen of 99.999%, compresses afterwards in steel cylinder.During use, steel cylinder is accessed high pure nitrogen connector place, send in rare gas krypton xenon tower.
The industrial nitrogen supply mode Problems existing of employing oxygenerator output is: use compressor cost higher, maintenance and operation is loaded down with trivial details, and the frequent link such as start-stop compressor and cylinder filling, increases manual operation load, reduces production effect.
Utility model content
In order to solve the shortcoming of prior art, the utility model provides a kind of nitrogen gas supply device of purifying for rare gas, and this nitrogen gas supply device can be avoided frequent start-stop compressor and cylinder filling link and reduce manual operation load, thus improving production efficiency.
For achieving the above object, the utility model is by the following technical solutions:
For the nitrogen gas supply device that rare gas is purified, comprising:
For generation of the oxygenerator of liquid nitrogen, described oxygenerator is provided with two-way and exports, and a road exports and is connected to liquid nitrogen separator, and another road exports and is connected to Dewar tank;
Described liquid nitrogen separator is connected with the condenser for condensation rare gas; The bottom of described condenser is connected with the rectifying column for extracting high-purity rare gas; Described rectifying column is provided with rare gas control valve and rare gas products export valve; Described Dewar tank is also connected with condenser.
The first liquid nitrogen control valve is provided with between described oxygenerator and liquid nitrogen separator.
High Purity Nitrogen pressure-regulating valve is also provided with between described liquid nitrogen separator and condenser.
The second liquid nitrogen control valve is provided with between described Dewar tank and condenser.
The top of described liquid nitrogen separator is provided with the first nitrogen atmospheric valve, and the top of described condenser is provided with the second nitrogen atmospheric valve.
Described Dewar tank also and be provided with Dewar tank inlet valve between oxygenerator.
Described Dewar tank also and be provided with Dewar tank outlet valve between High Purity Nitrogen pressure-regulating valve.
The liquid nitrogen pressure that described oxygenerator provides is greater than 0.3Mpa.
Stainless-steel vacuum pipeline is adopted to be connected between described oxygenerator with Dewar tank.
Described rare gas comprises Krypton and xenon.
At oxygenerator stable conditions, the oxygen of output and nitrogen gas purity qualified time, the liquid nitrogen product of output can meet requirement of the present utility model, and therefore, the utility model has again the manufacturer of rare gas purifying plant all applicable to existing oxygenerator.This device is since putting into operation, and operational effect is good.The advantage of this feedway has:
(1) Dewar tank cost compared with nitrogen decontamination plant and compressor much lower, up-front investment is few, simple to operate and easily obtain;
(2) this device simplifies flow process, and avoid the problem that nitrogen purge link moderate purity is not up to standard, production reliability significantly promotes;
(3) owing to decreasing compressor, equipment operation maintenance cost is low, and avoids the links such as frequent start-stop compressor and cylinder filling, and manual operation load greatly reduces, and production efficiency is effectively promoted; Therefore, this device has the universal meaning of popularization.
Accompanying drawing explanation
Fig. 1 is former high pure nitrogen feedway schematic diagram;
Fig. 2 is structural representation of the present utility model.
Wherein, 1. oxygenerator, 2. membrane compressor, 3. nitrogen decontamination plant, 4. steel cylinder, 5. cylinder outlet stop valve, 6. High Purity Nitrogen pressure-regulating valve, 7. the second nitrogen atmospheric valve, 8. condenser, 9. rectifying column, 10. rare gas control valve, 11. rare gas products export valves, 12. first liquid nitrogen control valves, 13. liquid nitrogen separators, 14. first nitrogen atmospheric valves, 15. second liquid nitrogen control valves, 16. Dewar tanks, 17. Dewar tank inlet valves, 18. Dewar tank outlet valves.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
As shown in Figure 1, during former high pure nitrogen feedway work, rare gas enters rectifying column 9 from rare gas control valve 10, the liquid nitrogen of oxygenerator 1 output enters liquid nitrogen separator 13 through the first liquid nitrogen control valve 12, and the low temperature nitrogen carried secretly by liquid nitrogen by the first nitrogen atmospheric valve 14 is emitted and controls liquid nitrogen separator liquid level; Liquid nitrogen enters in condenser 7 by the second liquid nitrogen control valve 15 again, and as the low-temperature receiver of rectifying column, the nitrogen after evaporation bleeds off from the second nitrogen atmospheric valve 7.
The nitrogen of oxygenerator 1 output is compressed to 14-15Mpa through membrane compressor 2, enters in nitrogen decontamination plant 3, removes O wherein by catalyst combustion reaction
2, H
2, CH
4deng impurity, CO absorption simultaneously
2and H
2o, finally purifies to high pure nitrogen, compresses afterwards in steel cylinder 4.When carrying to condenser 8, open cylinder outlet stop valve 5, control High Purity Nitrogen pressure in condenser by High Purity Nitrogen pressure-regulating valve 6, and then control the rectifying pressure in rectifying column 9, last rectifying rare gas is out exported by rare gas products export valve 11.
As shown in Figure 2, nitrogen gas supply device of purifying for rare gas of the present utility model, comprising:
For generation of the oxygenerator 1 of liquid nitrogen, described oxygenerator 1 is provided with two-way and exports, and a road exports and is connected to liquid nitrogen separator 13, and another road exports and is connected to Dewar tank 16; Described liquid nitrogen separator 13 is connected with the condenser 8 for condensation rare gas; The bottom of described condenser 8 is connected with the rectifying column 9 for extracting high-purity rare gas; Described rectifying column 9 is provided with rare gas control valve 10 and rare gas products export valve 11; Described Dewar tank 16 is also connected with condenser 8.
The first liquid nitrogen control valve 12 is provided with between described oxygenerator 1 and liquid nitrogen separator 13.
High Purity Nitrogen pressure-regulating valve 6 is also provided with between described liquid nitrogen separator 13 and condenser 8.
The second liquid nitrogen control valve 15 is provided with between described Dewar tank 16 and condenser 8.
The top of described liquid nitrogen separator 13 is provided with the first nitrogen atmospheric valve 14, and the top of described condenser 8 is provided with the second nitrogen atmospheric valve 7.
Described Dewar tank 16 also and between oxygenerator 1 is provided with Dewar tank inlet valve 17.
Described Dewar tank 16 also and between High Purity Nitrogen pressure-regulating valve 6 is provided with Dewar tank outlet valve 18.
The liquid nitrogen pressure that described oxygenerator 1 provides is greater than 0.3Mpa.
Described oxygenerator 1 is connected with adopting stainless-steel vacuum pipeline between Dewar tank 16.
Described rare gas comprises Krypton and xenon.
Described Dewar tank 16 bears pressure and is greater than 2.0Mpa, can from boosting and having stable-pressure device.
The precondition of the nitrogen gas supply device work for rare gas purification of the present utility model is: in the liquid nitrogen of oxygenerator output, each impurity composition content is close with high pure nitrogen.
Operation principle of the present utility model is:
Rare gas enters rectifying column 9 from rare gas control valve 10, a liquid nitrogen part for oxygenerator 1 output enters liquid nitrogen separator 13 through the first liquid nitrogen control valve 12, the low temperature nitrogen carried secretly by liquid nitrogen by the first nitrogen atmospheric valve 14 is emitted, control liquid nitrogen separator liquid level, liquid nitrogen enters in condenser 7 by the second liquid nitrogen control valve 15 again, as the low-temperature receiver of rectifying column 9, the nitrogen after evaporation bleeds off from the second nitrogen atmospheric valve 7.
Another part liquid nitrogen enters in Dewar tank 16 by opening Dewar tank inlet valve 17, until liquid level reaches more than 2/3, when needs supply high pure nitrogen to condenser 8, open back-up valve, liquid nitrogen is evaporated to high pure nitrogen after absorbing environmental temperature in coils, return in Dewar tank 16 and pressure in Dewar tank 16 is constantly raised, until to pressure needed for rectifying, then Dewar tank outlet valve 18 is opened, the High Purity Nitrogen pressure and the flow that enter condenser 8 is controlled by high pure nitrogen control valve 5, and then control rectifying pressure in rectifying column 9, last rectifying rare gas is out exported by rare gas products export valve 11.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (10)
1., for the nitrogen gas supply device that rare gas is purified, it is characterized in that, comprising:
For generation of the oxygenerator of liquid nitrogen, described oxygenerator is provided with two-way and exports, and a road exports and is connected to liquid nitrogen separator, and another road exports and is connected to Dewar tank;
Described liquid nitrogen separator is connected with the condenser for condensation rare gas; The bottom of described condenser is connected with the rectifying column for extracting high-purity rare gas; Described rectifying column is provided with rare gas control valve and rare gas products export valve; Described Dewar tank is also connected with condenser.
2. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, between described oxygenerator and liquid nitrogen separator, be provided with the first liquid nitrogen control valve.
3. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, between described liquid nitrogen separator and condenser, be also provided with High Purity Nitrogen pressure-regulating valve.
4. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, between described Dewar tank and condenser, be provided with the second liquid nitrogen control valve.
5. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, the top of described liquid nitrogen separator is provided with the first nitrogen atmospheric valve, and the top of described condenser is provided with the second nitrogen atmospheric valve.
6. a kind of nitrogen gas supply device of purifying for rare gas as claimed in claim 1, it is characterized in that, described Dewar tank also and be provided with Dewar tank inlet valve between oxygenerator.
7. a kind of nitrogen gas supply device of purifying for rare gas as claimed in claim 3, it is characterized in that, described Dewar tank also and be provided with Dewar tank outlet valve between High Purity Nitrogen pressure-regulating valve.
8. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, the liquid nitrogen pressure that described oxygenerator provides is greater than 0.3Mpa.
9. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, between described oxygenerator with Dewar tank, adopt stainless-steel vacuum pipeline to be connected.
10. as claimed in claim 1 a kind of for rare gas purify nitrogen gas supply device, it is characterized in that, described rare gas comprises Krypton and xenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408002.4U CN204693950U (en) | 2015-06-12 | 2015-06-12 | For the nitrogen gas supply device that rare gas is purified |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408002.4U CN204693950U (en) | 2015-06-12 | 2015-06-12 | For the nitrogen gas supply device that rare gas is purified |
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| Publication Number | Publication Date |
|---|---|
| CN204693950U true CN204693950U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520408002.4U Expired - Fee Related CN204693950U (en) | 2015-06-12 | 2015-06-12 | For the nitrogen gas supply device that rare gas is purified |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774103A (en) * | 2018-07-06 | 2018-11-09 | 山东重山光电材料股份有限公司 | A kind of production method and production system of tetra- chlorobutanes of 1,2,3,4- |
-
2015
- 2015-06-12 CN CN201520408002.4U patent/CN204693950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774103A (en) * | 2018-07-06 | 2018-11-09 | 山东重山光电材料股份有限公司 | A kind of production method and production system of tetra- chlorobutanes of 1,2,3,4- |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160612 |