CN201662299U - Liquid argon storage tank waste gas recovery device - Google Patents
Liquid argon storage tank waste gas recovery device Download PDFInfo
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- CN201662299U CN201662299U CN2010201452978U CN201020145297U CN201662299U CN 201662299 U CN201662299 U CN 201662299U CN 2010201452978 U CN2010201452978 U CN 2010201452978U CN 201020145297 U CN201020145297 U CN 201020145297U CN 201662299 U CN201662299 U CN 201662299U
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- argon
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Abstract
The utility model discloses a liquid argon storage tank waste gas recovery device, which comprises a crude argon tower I, a crude argon tower II, a liquefying tower, a refined argon tower, a pure argon tank and a highly pure argon tank. The liquid argon storage tank waste gas recovery device is characterized in that a reflux pipeline is led out from the top end of the pure argon tank, a pure argon tank gas return valve and a pure argon tank pressure control non-return valve are arranged on the reflux pipeline in sequence; a reflux pipeline is led out from the top end of the highly pure argon tank, and a highly pure argon tank gas return valve and a highly pure argon tank pressure control non-return valve are arranged on the reflux pipeline in sequence; the reflux pipelines led out from the pure argon tank and the highly pure argon tank are communicated, pass through an argon system shutdown protection linkage valve and then are communicated with the inlet pipeline of the crude argon tower II; and a pure argon tank atmospheric valve is arranged on the pure argon tank, and a highly pure argon tank atmospheric valve is arranged on the highly pure argon tank. The liquid argon storage tank waste gas recovery device has the advantages of simple structure, low production cost, good safety and convenient operation and use, and well solves the vacuum storage tank pressure control problem in the prior art.
Description
Technical field
The utility model relates to chemical technology field, is specifically related to a kind of liquid argon storage tank waste gas recovering device that can be applicable to each class I liquid I, pulvis.
Background technology
The liquid argon product that the air separation machine group is produced enters the liquid argon storage tank by pipeline, the liquid argon storage tank is generally vacuum tube, operating pressure is below 0.8MPa, under nature, vacuum storage tank has certain vaporization phenomenon to cause jar internal pressure to raise, so often open atmospheric valve with gas emptying pressure release in the jar in the operation, to guarantee that the vacuum storage tank internal pressure is in working range.
At present, vacuum tank gas side install additional pressure control relief valve promptly when a jar internal pressure reaches setting pressure relief valve open, relief valve cut out when pressure was brought down below setting pressure, can farthest reduce emptying like this, reduced emptying loss.Gas in the vacuum tank is returned the participation rectifying of pure argon column bottom by manually-operated gate control to be produced again to outside the liquid argon eliminating tower, to reach the effect of reclaiming argon gas.
Yet emptying pressure release control jar internal pressure causes the significant wastage of product argon gas.Moreover, reclaim by pure argon column, to set up because of pure argon column rectifying operating mode when normally moving, phegma and rising gas have been set up dynamic equilibrium; Less and stable the rectifying operating mode is not had too much influence as tank body return-air amount, and the normal situation that liquid in storage tank pump conveying liquid argon takes place to start in the actual production, can cause a large amount of backflow gas-liquids to return in the jar, stablize hand-driven return-flow valve and need strengthen aperture for guaranteeing a jar internal pressure, a large amount of gases are got back to the pure argon column bottom and are participated in rectifying as rising gas, be easy to cause pure argon column liquid outstanding, pure argon column rectifying operating mode is destroyed fully, so the means of operating personnel's external emptying commonly used are stablized pressure of storage tank.In addition, when the production high-purity argon, raise as the straight argon pressure tank, for not influencing pure argon column production high-purity argon, the argon gas of straight argon jar also can only externally discharge, and causes the emptying loss.
For solving above-mentioned deficiency of the prior art, the utility model provides a kind of new solution.
The utility model content
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of storage tank easy cleaning cleaning device, that this liquid argon storage tank waste gas recovering device not only has is simple in structure, cost of manufacture is low, security good, advantage such as easy for operation, can better solve the pressure controlled problem of vacuum storage tank in the prior art.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of liquid argon storage tank waste gas recovering device is provided, comprises crude argon I tower, crude argon II tower, liquefaction tower, pure argon column, straight argon jar and high-purity argon jar; Described crude argon I tower, crude argon II tower, liquefaction tower, pure argon column, straight argon jar and high-purity argon jar are from a left side and the right side is communicated with successively; It is characterized in that: described straight argon upper end is drawn a reflux line, is disposed with straight argon jar return-air valve and straight argon pressure tank control check valve on the reflux line; Described high-purity argon upper end is drawn a reflux line, is disposed with high-purity argon jar return-air valve and high-purity argon pressure tank control check valve on the reflux line; The reflux line that described straight argon jar and high-purity argon jar are drawn is connected after be connected with the inlet pipeline of No. two towers of crude argon behind the ar system stop-working protection interlocking valve; Also be provided with straight argon jar atmospheric valve on the described straight argon jar, also be provided with high-purity argon jar atmospheric valve on the high-purity argon jar.
According to liquid argon storage tank waste gas recovering device provided by the utility model, it is characterized in that: the valve opening pressure of described straight argon pressure tank control check valve and high-purity argon pressure tank control check valve is set to 0.1MPa.
According to liquid argon storage tank waste gas recovering device provided by the utility model, it is characterized in that: the valve opening pressure of described straight argon jar atmospheric valve and high-purity argon jar atmospheric valve is provided with 1.8MPa.
In sum, that liquid argon storage tank waste gas recovering device provided by the utility model has is simple in structure, cost of manufacture is low, advantage such as easy for operation, particularly importantly, also has following advantage:
1, during the pure argon column operate as normal, per hour the feed liquor flow is 1-1.5m3 (liquid state), can not surpass 5m3/h (gaseous state) by the rising gas after the evaporator evaporation yet, and storage tank return-air flow is a fluctuation status, maximum can reach 10m3/h (gaseous state), and the utility model can be avoided significantly increasing the problem that causes the rectifying operating mode to be destroyed because of rising gas;
2, reflux gas is introduced from the crude argon II tower inlet pipeline that big air inflow (25000m3/h gaseous state) is arranged, enter and send into pure argon column after the liquefaction of liquefaction tower and participate in rectifying by extracting the crude argon that contains the oxygenate lattice out from crude argon outlet after the rectifying of crude argon II tower, final production goes out qualified liquid argon product, because of the bigger backflow argon gas of crude argon column air inflow can not influence its rectifying operating mode, contain argon gas that oxygen is higher than 1.5ppm and also can make and contain the index request that oxygen reaches corresponding product through the rectifying of crude argon column;
3, this device can effectively be controlled at 0.1MPa with the liquid argon pressure of storage tank, and liquid pump start-stop pressure of storage tank is relatively stable, and pressure of storage tank control need not the switch relief valve; Liquid argon yield increases about 100Nm3 every day.
Accompanying drawing and explanation thereof
Fig. 1 is the structure chart of liquid argon storage tank waste gas recovering device.
Wherein, 1, crude argon I tower; 2, ar system stop-working protection interlocking valve; 3, crude argon II tower; 4, liquefaction tower; 5, pure argon column; 6, straight argon jar return-air valve; 7, straight argon pressure tank control check valve; 8, straight argon jar atmospheric valve; 9, high-purity argon jar return-air valve; 10, high-purity argon pressure tank control check valve; 11, high-purity argon jar atmospheric valve; 12, straight argon jar; 13, high-purity argon jar.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.
As shown in the figure, this liquid argon storage tank waste gas recovering device comprises crude argon I tower 1, crude argon II tower 3, liquefaction tower 4, pure argon column 5, straight argon jar 12 and high-purity argon jar 13; Described crude argon I tower 1, crude argon II tower 3, liquefaction tower 4, pure argon column 5, straight argon jar 12 and high-purity argon jar 13 are from a left side and the right side is communicated with successively; It is characterized in that: a reflux line is drawn on described straight argon jar 12 tops, is disposed with straight argon jar return-air valve 6 and straight argon pressure tank control check valve 7 on the reflux line; A reflux line is drawn on described high-purity argon jar 13 tops, is disposed with high-purity argon jar return-air valve 9 and high-purity argon pressure tank control check valve 10 on the reflux line; The reflux line that described straight argon jar 12 and high-purity argon jar 13 are drawn is connected after ar system stop-working protection interlocking valve 2 backs are connected with the inlet pipeline of crude argon II tower 3; Also be provided with straight argon jar atmospheric valve 8 on the described straight argon jar 12, also be provided with high-purity argon jar atmospheric valve 11 on the high-purity argon jar 13.
The valve opening pressure of described straight argon pressure tank control check valve 7 and high-purity argon pressure tank control check valve 10 is set to 0.1MPa.The valve opening pressure of described straight argon jar atmospheric valve 8 and high-purity argon jar atmospheric valve 11 is provided with 1.8MPa.
During use, when pressure of storage tank was increased to 0.1MPa, straight argon pressure tank control check valve 7 and high-purity argon pressure tank control check valve 10 were opened air guide in crude argon II tower; Straight argon jar atmospheric valve 8 and high-purity argon jar atmospheric valve 11 are opened pressure release when pressure of storage tank further raises, and guarantee that pressure of storage tank is in working range.
The utility model has cut off the return-air duct of original time pure argon column, return-air duct is inserted on the crude argon II tower admission line, and keep the latus rectum of return-air duct constant.
In addition, finish crude argon column parking interlock protection device, realize the chain control of crude argon column parking emergency cut-off ar system stop-working protection interlocking valve 2 by configuration.
Though in conjunction with the accompanying drawings the specific embodiment of the present utility model is described, in the claim institute restricted portion of this patent, the protection that those skilled in the art do not need various modifications that creative work can make or distortion still to be subjected to this patent.
Claims (3)
1. a liquid argon storage tank waste gas recovering device comprises crude argon I tower (1), crude argon II tower (3), liquefaction tower (4), pure argon column (5), straight argon jar (12) and high-purity argon jar (13); Described crude argon I tower (1), crude argon II tower (3), liquefaction tower (4), pure argon column (5), straight argon jar (12) and high-purity argon jar (13) are from a left side and the right side is communicated with successively; It is characterized in that: a reflux line is drawn on described straight argon jar (12) top, is disposed with straight argon jar return-air valve (6) and straight argon pressure tank control check valve (7) on the reflux line; A reflux line is drawn on described high-purity argon jar (13) top, is disposed with high-purity argon jar return-air valve (9) and high-purity argon pressure tank control check valve (10) on the reflux line; The reflux line that described straight argon jar (12) and high-purity argon jar (13) are drawn is connected after ar system stop-working protection interlocking valve (2) back is connected with the inlet pipeline of No. two towers of crude argon (3); Also be provided with straight argon jar atmospheric valve (8) on the described straight argon jar (12), also be provided with high-purity argon jar atmospheric valve (11) on the high-purity argon jar (13).
2. liquid argon storage tank waste gas recovering device according to claim 1 is characterized in that: the valve opening pressure of described straight argon pressure tank control check valve (7) and high-purity argon pressure tank control check valve (10) is set to 0.1MPa.
3. liquid argon storage tank waste gas recovering device according to claim 1 is characterized in that: the valve opening pressure of described straight argon jar atmospheric valve (8) and high-purity argon jar atmospheric valve (11) is provided with 1.8MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452978U CN201662299U (en) | 2010-03-30 | 2010-03-30 | Liquid argon storage tank waste gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452978U CN201662299U (en) | 2010-03-30 | 2010-03-30 | Liquid argon storage tank waste gas recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN201662299U true CN201662299U (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201452978U Expired - Fee Related CN201662299U (en) | 2010-03-30 | 2010-03-30 | Liquid argon storage tank waste gas recovery device |
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| CN (1) | CN201662299U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506560A (en) * | 2011-09-30 | 2012-06-20 | 浙江新锐空分设备有限公司 | Method for producing pure argon from waste argon |
| CN103267403A (en) * | 2013-05-15 | 2013-08-28 | 兖矿集团有限公司 | Method and system for increasing yield of liquid argon |
| CN113074516A (en) * | 2021-04-30 | 2021-07-06 | 开封迪尔空分实业有限公司 | Argon preparation method adopting single tower |
| CN114485053A (en) * | 2022-01-28 | 2022-05-13 | 东南大学 | Control configuration system capable of self-adapting to industrial argon purification and recovery fluctuation |
-
2010
- 2010-03-30 CN CN2010201452978U patent/CN201662299U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506560A (en) * | 2011-09-30 | 2012-06-20 | 浙江新锐空分设备有限公司 | Method for producing pure argon from waste argon |
| CN103267403A (en) * | 2013-05-15 | 2013-08-28 | 兖矿集团有限公司 | Method and system for increasing yield of liquid argon |
| CN103267403B (en) * | 2013-05-15 | 2015-09-16 | 兖矿集团有限公司 | A kind of system and method improving liquid argon yield |
| CN113074516A (en) * | 2021-04-30 | 2021-07-06 | 开封迪尔空分实业有限公司 | Argon preparation method adopting single tower |
| CN114485053A (en) * | 2022-01-28 | 2022-05-13 | 东南大学 | Control configuration system capable of self-adapting to industrial argon purification and recovery fluctuation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20150330 |
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| EXPY | Termination of patent right or utility model |