CN1089019C - 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 PDF

Info

Publication number
CN1089019C
CN1089019C CN99116509A CN99116509A CN1089019C CN 1089019 C CN1089019 C CN 1089019C CN 99116509 A CN99116509 A CN 99116509A CN 99116509 A CN99116509 A CN 99116509A CN 1089019 C CN1089019 C CN 1089019C
Authority
CN
China
Prior art keywords
gas
gas holder
pressure
vacuum pump
changing adsorption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN99116509A
Other languages
Chinese (zh)
Other versions
CN1240153A (en
Inventor
蒋远华
杨晓勤
尤大海
何涛
冷静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YIHUA GROUP CO Ltd HUBEI PROV
Original Assignee
YIHUA GROUP CO Ltd HUBEI PROV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YIHUA GROUP CO Ltd HUBEI PROV filed Critical YIHUA GROUP CO Ltd HUBEI PROV
Priority to CN99116509A priority Critical patent/CN1089019C/en
Publication of CN1240153A publication Critical patent/CN1240153A/en
Application granted granted Critical
Publication of CN1089019C publication Critical patent/CN1089019C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The present invention discloses a method for stabilizing the outlet pressure of a pressure changing adsorption vacuum pump by a gas tank. A gas tank with changeable gas storage volume is connected in series or in parallel between the outlet of a vacuum pump and the inlet of supercharging equipment. Gas enters the gas tank, and then, the gas is pumped to a working section using gas or a unit by the supercharging equipment, such as Root's blowers, etc., after the pressure is stabilized by the gas tank. The method stabilizes the outlet pressure of the vacuum pump, reduces working noise and is stable in operation so as to ensure production quality.

Description

Method with the gas holder stabilizing outlet pressure of pressure changing adsorption vacuum pump
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
Anti-flat device 7 and the automatic emptying device 8 of high limit taken out that is provided with on the variable capacity gas holder of the present invention can be crossed make-up gas or emptying gas when low or too high in the gas holder internal pressure, to guarantee the gas holder work safety.
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 ml 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
CN99116509A 1999-06-05 1999-06-05 Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet Expired - Fee Related CN1089019C (en)

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 CN1240153A (en) 2000-01-05
CN1089019C true 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)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03127605A (en) * 1989-10-13 1991-05-30 Seibu Gas Kk Method and device for pressure-regulating, straightening and homogenizing cyclic gas current
WO1998029182A1 (en) * 1996-12-31 1998-07-09 Keefer Bowie 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03127605A (en) * 1989-10-13 1991-05-30 Seibu Gas Kk Method and device for pressure-regulating, straightening and homogenizing cyclic gas current
WO1998029182A1 (en) * 1996-12-31 1998-07-09 Keefer Bowie 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

Also Published As

Publication number Publication date
CN1240153A (en) 2000-01-05

Similar Documents

Publication Publication Date Title
CN1062781C (en) Improved vacuum pressure swing adsorption process
CA2719750C (en) System and methods for psa gas separation using centrifugal compressor with high-speed permanent magnet motor
CN106365123B (en) A kind of list lobe pump double acting medical molecular sieve oxygen generation system and method for producing oxygen through
WO2011142992A1 (en) System and methods for psa gas separation using centrifugal compressor with high-speed induction motor
CN104058371A (en) Pressure swing adsorption gas production system and pressure swing adsorption gas production method
CN205170386U (en) Intelligence oxygen system
CN1089019C (en) Method for stabilizing outlet pressure of pressure changing adsorption vacuum pump by using air cabinet
CN208245171U (en) A kind of novel tea multistage screening plant
CN2715542Y (en) Grain heap nitrogen charging device for grain storage
CN202007134U (en) Pressurization storage type pressure swing adsorption oxygenerator
JPS5888106A (en) Operation of pressure changing device for manufacturing nitrogen from air and pressure changing device therefor
CN201245436Y (en) Multi-tower pressure swing adsorption nitrogen making machine
CN215755233U (en) Continuous material conveying system
CN101700877A (en) Process method for making nitrogen by pressure swing adsorption
CN204897397U (en) System oxygen all -in -one
CN213281456U (en) Cut stem separating device for anti-puncturing cigarette
CN204788787U (en) A high -pressure compress air system for pressure sensor test
CN205676149U (en) A kind of oxygenerator with parallel low compacting oxygen module
CN105858612A (en) Parallel-operation constant pressure altitude adaptive adsorption oxygenerator and oxygen production method
CN220537498U (en) Carbon molecular sieve pressure swing adsorption nitrogen making device
CN106044717A (en) Oxygen generator with parallel low-pressure oxygen generation modules
CN201151665Y (en) Integrated oxygen making device
CN205500774U (en) Oxygenerator is adsorbed to parallel machine constant voltage formula elevation self -adaptation
CN2402644Y (en) Suction unloader for press filter
CN219168920U (en) Stem returning system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
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

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

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20020814

Termination date: 20120605