CN1240153A - Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet - Google Patents
Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet Download PDFInfo
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- CN1240153A CN1240153A CN 99116509 CN99116509A CN1240153A CN 1240153 A CN1240153 A CN 1240153A CN 99116509 CN99116509 CN 99116509 CN 99116509 A CN99116509 A CN 99116509A CN 1240153 A CN1240153 A CN 1240153A
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- gas
- pressure
- gas holder
- vacuum pump
- changing adsorption
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Abstract
The present invention discloses a method for stabilizing outlet pressure of pressure-swing adsorption vacuum pump by gas tank. It is characterized by that a gas tank whose gas volume can be changed is serially or parallelly connected between the outlet of vacuum pump and booster equipment. Firstly the gas is fed into the gas tank, where the pressure is stabilized, and the gas is then pumped by the booster equipment such as Roots blower, etc., to work station or unit having need of using gas. Said method can stabilize outlet pressure of vacuum pump, reduce work noise, stabilize operation and ensure quality of product.
Description
The present invention relates to a kind of method, particularly relate to a kind of method that adopts variable capacity gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump.
Be in the transformation adsorption separation process of product gas mutually with easy absorption, vavuum pump used (CN1195572) from the product pneumatic transmission of extracting out in the adsorption tower to back workshop section or unit.Traditional method is an advanced moisture trap of the gas of vacuum pump outlet and a surge tank, and then see off with supercharging equipments such as Roots blowers, because vavuum pump and the intrinsic of supercharging equipment service behaviour do not match, make the pressure oscillation of vacuum pump outlet very big, cause the big and frequent excess load of vavuum pump and supercharging equipment electric load fluctuation, produce very big noise, shorten service life; The production workshop section load of making raw material with the gas of sending also is among the fluctuation, and the production shakiness is not easy to operate, and product quality and production equipment all are on the hazard.Use constant volume equipment to do moisture trap and surge tank quite big for addressing this problem, so that pressure curve is level and smooth, invest quite greatly, effect is undesirable.
Purpose of the present invention just provides a kind of reduced investment, the little method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump of noise is stablized, produced to output pressure.
The object of the present invention is achieved like this: a kind of method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump, the advanced variable capacity gas holder of the gas of vacuum pump outlet, behind the gas holder steady pressure, pump to gas workshop section unit with supercharging equipments such as Roots blowers again, be provided with gas return path control gas holder height on stream.Anti-flat device and the automatic emptying device of high limit taken out is set on the variable capacity gas holder; The pattern of gas holder is a Vertical Lift or spiral; The volume of gas holder is 30-10000m
3
Method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump provided by the invention, because serial or parallel connection one variable capacity gas holder at vacuum pump outlet and between with the import of gas unit, the gas that vavuum pump comes out can be used the gas holder steady pressure, the vacuum pump outlet pressure oscillation is reduced, vavuum pump and the fluctuation of supercharging equipment electric load reduce and load alleviates, the noise that produces reduces, and has prolonged the service life of vavuum pump; Adopt the form of variable capacity gas holder, make the moisture separator of the comparable former use of gas holder volume and buffering tank volume little a lot, reduced investment; The gas return path control device of She Zhiing reaches the anti-normal operation that flat device has guaranteed gas holder of taking out on stream.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of embodiment of the present invention.
Fig. 2 is another kind of embodiment of the present invention.
Method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump provided by the invention, the high-purity easy absorption phase gas that vavuum pump is extracted out from adsorption tower during work enters the variable capacity gas holder, sends into back workshop section or unit with supercharging equipments such as Roots blowers again behind the variable capacity gas holder.Bleed early stage at vavuum pump, the ability that the gas flow that vavuum pump is sent can pass on more than Roots blower, this moment, the variable capacity gas holder rose, and volume increases so that pressure does not raise; Bleed the later stage at vavuum pump, gas is fewer and feweri in the adsorption tower, and the gas flow that vavuum pump is sent is less than the pumpage of Roots blower, and this moment, gas holder descended, and volume reduces so that pressure does not descend.Move in circles like this, utilize gas holder lifting change gas storage volume to make vacuum that mouth pressure is shown and reached stable, bring equipment operation and production status stable, noise reduces greatly.
Gas holder container of the present invention is 30-10000m
3
The present invention controls gas holder lifting in normal fluctuation range by gas return path is set, and when gas holder is reduced to the design lower bound, opens the atmospheric loop to the gas holder return-air, so that gas holder is elevated to normal range (NR).
Fig. 1 has represented a kind of embodiment of the present invention, and variable capacity gas holder 1 adopts method in parallel to connect.The CO that vavuum pump 2 is extracted out in the adsorption tower 3
2Gas, average discharge 148.5Nm
3/ min is through 120m
3Moisture trap 4 after enter 100m respectively
3Gas holder m1 and 90m
3Surge tank 5, the gas that comes out enters Roots blower 6 and delivers to CO
2Produce urea after the compressor pressurizes, record vavuum pump 2 outlet pressures and be stabilized between the 2.95-3.2KPa.
That Fig. 2 represents is another kind of embodiment of the present invention, and variable capacity gas holder 1 adopts series system to connect.The CO that vavuum pump 2 is extracted out from adsorption tower 3
2Gas, average discharge 270Nm
3/ min is through 500m
3Gas holder 1 after enter Roots blower 6, record vavuum pump 2 outlet pressures and be stabilized between the 2.95-3.05KPa.
Claims (4)
1, a kind of method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump, the advanced variable capacity gas holder of gas that it is characterized in that vacuum pump outlet, behind the gas holder steady pressure, pump to gas workshop section or unit with supercharging equipment again, be provided with gas return path control gas holder height on stream.
2, the method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump according to claim 1 is characterized in that being provided with on the variable capacity gas holder anti-flat device and the automatic emptying device of high limit taken out;
3, according to claim 1 or 2 described methods with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump, the pattern that it is characterized in that gas holder is a Vertical Lift or spiral.
4, the method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump according to claim 1 and 2, the volume that it is characterized in that gas holder is 30-10000m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116509A CN1089019C (en) | 1999-06-05 | 1999-06-05 | Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116509A CN1089019C (en) | 1999-06-05 | 1999-06-05 | Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1240153A true CN1240153A (en) | 2000-01-05 |
| CN1089019C CN1089019C (en) | 2002-08-14 |
Family
ID=5279314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99116509A Expired - Fee Related CN1089019C (en) | 1999-06-05 | 1999-06-05 | Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089019C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040979A (en) * | 2022-05-16 | 2022-09-13 | 青岛国林环保科技股份有限公司 | Pressure swing adsorption oxygen generation device and oxygen generation method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0732858B2 (en) * | 1989-10-13 | 1995-04-12 | 西部瓦斯株式会社 | Method for simultaneously regulating, rectifying and homogenizing cyclic gas flow and apparatus therefor |
| EP0952883A1 (en) * | 1996-12-31 | 1999-11-03 | Bowie Gordon Keefer | High frequency pressure swing adsorption |
| CN1195572A (en) * | 1998-01-24 | 1998-10-14 | 伍仁兴 | Pressure swing adsorption gas separation method capable of simultaneously purifying adsorbable phase and non-adsorbable phase from mixed gas |
-
1999
- 1999-06-05 CN CN99116509A patent/CN1089019C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115040979A (en) * | 2022-05-16 | 2022-09-13 | 青岛国林环保科技股份有限公司 | Pressure swing adsorption oxygen generation device and oxygen generation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1089019C (en) | 2002-08-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hubei Chuxing Chemical Co., Ltd. Assignor: Yihua Group Co., Ltd., Hubei Prov. Contract fulfillment period: 2009.3.17 to 2019.3.16 contract change Contract record no.: 2009420000016 Denomination of invention: Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet Granted publication date: 20020814 License type: Exclusive license Record date: 2009.5.6 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.17 TO 2019.3.16; CHANGE OF CONTRACT Name of requester: HUBEI CHUXING CHEMICAL CO., LTD. Effective date: 20090506 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020814 Termination date: 20120605 |