CN208268771U - A kind of Dewar tank fills and device for recovering tail gas - Google Patents
A kind of Dewar tank fills and device for recovering tail gas Download PDFInfo
- Publication number
- CN208268771U CN208268771U CN201721795143.1U CN201721795143U CN208268771U CN 208268771 U CN208268771 U CN 208268771U CN 201721795143 U CN201721795143 U CN 201721795143U CN 208268771 U CN208268771 U CN 208268771U
- Authority
- CN
- China
- Prior art keywords
- dewar bottle
- gas
- tail gas
- nitrogen
- storage tank
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000003860 storage Methods 0.000 claims abstract description 23
- 238000000465 moulding Methods 0.000 claims abstract description 13
- 239000006200 vaporizer Substances 0.000 claims abstract description 13
- 238000009826 distribution Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 64
- 239000007789 gas Substances 0.000 abstract description 46
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 31
- 238000002309 gasification Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007792 gaseous phase Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
It is filled the utility model discloses a kind of Dewar bottle and device for recovering tail gas, belong to Dewar bottle production technical field, it solves liquid nitrogen in existing apparatus and is easy gasification in transmission process, the equal pressure difference that can not carry out of Dewar bottle inner and outer air pressure directly fills, and the tail gas that Dewar bottle and storage tank generate is difficult to the problem of being recycled.Device includes storage tank, Dewar bottle, gas cylinder, charging device and device for recovering tail gas.The utility model is filled using cryogenic pump, can not only prevent liquid nitrogen pressure reduction, is also provided pressure to fill and is pushed, solve the problems, such as liquid nitrogen in the transmission due to heat exchange and generator is difficult to carry out pressure difference directly to fill；After so that nitrogen gas purity is reached 5N high pure nitrogen standard after purification into vaporizer gasification, purifier after the nitrogen that nitrogen vaporized in Dewar bottle and nitrogen storage tank gas phase are discharged is collected, it is filled again with moulding press pressurization into gas cylinder, to solve the recycling and utilization of Dewar bottle tail gas and storage tank tail gas, efficiency is improved benefit and filled.
Description
Technical field
The utility model belongs to Dewar bottle production technical field, and in particular to a kind of Dewar bottle fills and tail gas recycle dress
It sets.
Background technique
Existing Dewar container for liquefied nitrogen bottle methods for filling is by the pressure difference wavy metal between liquid nitrogen storage tank and Dewar bottle
Pipe connection directly carries out what weighing filled to Dewar bottle bottle group.This methods for filling it is actual fill operation in there are following several
Point is insufficient:
1, the liquid nitrogen of liquid nitrogen storage tank liquid-phase outlet output causes a large amount of liquid nitrogen gasifications, gas through metal bellows and air heat-exchange
Nitrogen after change causes Dewar bottle bottle pressure constantly to increase, and bottle pressure rises to after liquid nitrogen storage tank balance, fills operation and is difficult to continue；
2, after Dewar bottle pressure and liquid nitrogen storage tank pressure balance, putting on Dewar bottle is switched on to maintain to continue to fill
Empty valve, which is just able to achieve, to be continued to fill, and is wasted as caused by line emptying very big；
3, it fills that efficiency is too low by the mode that pressure difference fills, fills speed and the time depends on the size of pressure difference, fill
One most fast needs 20 minutes or so；
4, gasification tail gas caused by filling can not recycle.
Utility model content
It is filled the purpose of the utility model is to provide a kind of Dewar bottle and device for recovering tail gas, to solve liquid in existing apparatus
Nitrogen is easy gasification in transmission process, and the equal pressure difference that can not carry out of Dewar bottle inner and outer air pressure directly fills, what Dewar bottle and storage tank generated
Tail gas is difficult to the problem of being recycled.
In order to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of Dewar bottle fills and device for recovering tail gas, including storage tank, Dewar bottle and gas cylinder, further includes charging device and tail
Gas recovering device, charging device include cryogenic pump, go out liquid distribution header and on-ground weigher, the liquid outlet of storage tank by cryogenic pump and into
Liquid valve is connected to liquid distribution header out, and liquid distribution header is in charge of equipped with several liquid and is connected respectively with the liquid inlet of Dewar bottle out
It connects, the bottom of Dewar bottle is equipped with on-ground weigher；Device for recovering tail gas includes vaporizer, purifier and moulding press, the drain of Dewar bottle
It is in charge of by gas and is connected to gas main, gas main is connected to the entrance of vaporizer, the outlet of vaporizer and purifier
Entrance connection, the outlet of purifier are connected to the entrance of moulding press, and moulding press is connect by gas service pipe with several gas cylinders.
In order to further realize the utility model, pressure gauge is equipped between cryogenic pump and liquid feed valve.
In order to further realize the utility model, storage tank is connected by exhaust valve with gas main.
The utility model compared to the prior art the utility model has the advantages that
The utility model is filled using cryogenic pump, can not only be prevented liquid nitrogen pressure reduction, also be provided pressure to fill
Push it is dynamic, solve the problems, such as liquid nitrogen in the transmission due to heat exchange and generator is difficult to carry out pressure difference directly to fill；By Dewar bottle
Interior vaporized nitrogen and the nitrogen of nitrogen storage tank gas phase discharge enter vaporizer gasification after collecting, purifier makes nitrogen after purification
It after purity reaches 5N high pure nitrogen standard, then is pressurized and is filled into gas cylinder with moulding press, to solve Dewar bottle tail gas and storage tank
The recycling and utilization of tail gas, improve benefit and fill efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Detailed description of the invention meaning is as follows: 1, cryogenic pump；2, go out liquid distribution header；3, on-ground weigher；4, storage tank；5, liquid feed valve；6, liquid
Body is in charge of；7, Dewar bottle；8, vaporizer；9, purifier；10, moulding press；11, drain；12, gas is in charge of；13, gas is total
Pipe；14, gas service pipe；15, gas cylinder；16, pressure gauge；17, exhaust valve；18, liquid-phase outlet；19, gaseous phase outlet.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and detailed description.
Cryogenic pump used in embodiment be the adhesion of Hangzhou platform produce cryogenic liquid low pressure liquid pump (flow 2000L/h,
Outlet pressure 0.6-3.0MPa), fill used in connecting tube be vacuum metal bellows.
As shown in Figure 1, a kind of Dewar bottle fills and device for recovering tail gas, including storage tank, Dewar bottle and gas cylinder, it further include filling
Assembling device and device for recovering tail gas, charging device include cryogenic pump 1, go out liquid distribution header 2 and on-ground weigher 3, the liquid outlet of storage tank 4
It is connected to by cryogenic pump 1 and liquid feed valve 5 with liquid distribution header 2 out, pressure gauge 16 is equipped between cryogenic pump 1 and liquid feed valve 5, out liquid
Distribution header 2 is in charge of 6 equipped with several liquid and is connect respectively with the liquid inlet of Dewar bottle 7, and the bottom of Dewar bottle 7 is equipped with on-ground weigher
3；The device for recovering tail gas includes vaporizer 8, purifier 9 and moulding press 10, and the drain 11 of Dewar bottle 7 is in charge of by gas
12 are connected to gas main 13, and storage tank 4 is connected by exhaust valve 17 with gas main 13, gas main 13 and vaporizer 8
Entrance connection, the outlet of vaporizer 8 are connected to the entrance of purifier 9, and the outlet of purifier 9 is connected to the entrance of moulding press 10,
Moulding press 10 is connect by gas service pipe 14 with several gas cylinders 15.
When operation, liquid nitrogen is discharged into cryogenic pump 1 from the liquid-phase outlet 18 of storage tank 4, and the liquid nitrogen pressure after suppressing is through pressure
The measurement of table 16 control is gone out liquid distribution header 2 and is in charge of in 6 injection Dewar bottles 15 into liquid in 1.0-2.0MPa, Dewar bottle bottle
Filling for group is completed after on-ground weigher 3 weighs qualification；Vaporized nitrogen is discharged from the drain 11 of Dewar bottle 15 in Dewar bottle 15,
Enter vaporizer 8 after the nitrogen that gas is in charge of the discharge of gaseous phase outlet 19 of 12 and storage tank 4 comes together in gas main 13 to carry out
Thoroughly gasification enters purifier 9 after nitrogen gasification and purifies, and purifier 9 is provided with high-efficiency adsorbent to moisture, the oxygen in nitrogen
Equal impurity compositions Adsorption, makes the nitrogen gas purity in 9 exit of purifier reach 5N high pure nitrogen standard, nitrogen enters moulding press
10 pressurizations are filled by gas service pipe 14 into gas cylinder, and operation terminates.
Claims (3)
1. a kind of Dewar bottle fills and device for recovering tail gas, including storage tank, Dewar bottle and gas cylinder, it is characterised in that: further include filling
Assembling device and device for recovering tail gas, the charging device include cryogenic pump (1), go out liquid distribution header (2) and on-ground weigher (3), storage tank
(4) liquid outlet is connected to by cryogenic pump (1) and liquid feed valve (5) with liquid distribution header (2) out, out in liquid distribution header (2)
It is in charge of (6) equipped with several liquid to connect with the liquid inlet of Dewar bottle (7) respectively, the bottom of Dewar bottle (7) is equipped with on-ground weigher (3)；
The device for recovering tail gas includes vaporizer (8), purifier (9) and moulding press (10), and the drain (11) of Dewar bottle (7) passes through
Gas is in charge of (12) and is connected to gas main (13), and gas main (13) is connected to the entrance of vaporizer (8), vaporizer (8)
Outlet is connected to the entrance of purifier (9), and the outlet of purifier (9) is connected to the entrance of moulding press (10), and moulding press (10) is logical
Gas service pipe (14) is crossed to connect with several gas cylinders (15).
2. Dewar bottle as described in claim 1 fills and device for recovering tail gas, it is characterised in that: the cryogenic pump (1) and into
Pressure gauge (16) are equipped between liquid valve (5).
3. Dewar bottle as claimed in claim 1 or 2 fills and device for recovering tail gas, it is characterised in that: the storage tank (4) passes through
Exhaust valve (17) is connected with gas main (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721795143.1U CN208268771U (en) | 2017-12-20 | 2017-12-20 | A kind of Dewar tank fills and device for recovering tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721795143.1U CN208268771U (en) | 2017-12-20 | 2017-12-20 | A kind of Dewar tank fills and device for recovering tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268771U true CN208268771U (en) | 2018-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721795143.1U Active CN208268771U (en) | 2017-12-20 | 2017-12-20 | A kind of Dewar tank fills and device for recovering tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432053A (en) * | 2020-11-19 | 2021-03-02 | 深圳市凯丰实业发展有限公司 | Zero discharge system device of liquid nitrogen storage tank |
| CN112555674A (en) * | 2020-12-24 | 2021-03-26 | 珠海森铂低温能源装备有限公司 | Filling station cold energy utilization device |
-
2017
- 2017-12-20 CN CN201721795143.1U patent/CN208268771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432053A (en) * | 2020-11-19 | 2021-03-02 | 深圳市凯丰实业发展有限公司 | Zero discharge system device of liquid nitrogen storage tank |
| CN112555674A (en) * | 2020-12-24 | 2021-03-26 | 珠海森铂低温能源装备有限公司 | Filling station cold energy utilization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Dewar tank filling and tail gas recovery device Effective date of registration: 20220329 Granted publication date: 20181221 Pledgee: Bank of China Limited Lanzhou Xigu center sub branch Pledgor: LANZHOU YULONG GAS CO.,LTD. Registration number: Y2022620000008 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231013 Granted publication date: 20181221 Pledgee: Bank of China Limited Lanzhou Xigu center sub branch Pledgor: LANZHOU YULONG GAS CO.,LTD.|JINCHANG LONGBO GAS Co.,Ltd. Registration number: Y2022620000008 |