CN201120244Y - Secondary adsorption pressure swing adsorption air separation system - Google Patents

Secondary adsorption pressure swing adsorption air separation system Download PDF

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Publication number
CN201120244Y
CN201120244Y CNU2007200433751U CN200720043375U CN201120244Y CN 201120244 Y CN201120244 Y CN 201120244Y CN U2007200433751 U CNU2007200433751 U CN U2007200433751U CN 200720043375 U CN200720043375 U CN 200720043375U CN 201120244 Y CN201120244 Y CN 201120244Y
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CN
China
Prior art keywords
air separation
storage tank
air
pressure
separation system
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
CNU2007200433751U
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Chinese (zh)
Inventor
黄公连
冯华南
杨耀峰
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.)
Wuxi Hualing Filter Equipment Co., Ltd.
Original Assignee
WUXI HUAFENG GAS SEPARATION EQUIPMENT CO Ltd
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.)
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Priority to CNU2007200433751U priority Critical patent/CN201120244Y/en
Application granted granted Critical
Publication of CN201120244Y publication Critical patent/CN201120244Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a secondary adsorption pressure-swing adsorption air separation device, and is to provide a pressure-swing adsorption air separation system which can further improve the purity of the pure gas in a gas storage tank. The technical proposal is that the pressure-swing adsorption air separation system which can be used for the secondary absorption comprises an absorption tower, an air input device which is connected on the input opening of the absorption tower, the input opening of the absorption tower is further connected with a normal atmosphere desorption device, the output opening of the absorption tower is connected with an electrical control valve and a one-way valve in parallel, and is further serially connected with an air separation gas storage tank, the outlet of the air separation gas storage tank is connected with a stop valve, and a molecular sieve is arranged in the air separation gas storage tank, the volume of the air separation gas storage tank is smaller than or equal to half of that of the absorption tower, a molecular sieve is added into a pure air storage tank, which is used for further absorbing impurity-contained gas in pure oxygen or pure nitrogen which is absorbed by a primary absorption of the absorption tower, thereby, the purity of the pure oxygen or pure nitrogen in the pure air storage tank is further improved, and the problems which can not be effectively solved for a long term are solved.

Description

Secondary adsorption and pressure-swing adsorption air separation system
Technical field
The utility model relates to a kind of pressure-swing adsorption air separation system of second adsorption.
Background technology
Raising along with people's living standard, people are also improving constantly the understanding of ambient air quality importance, the air separation adsorbent equipment is used increasingly extensive, traditional air-seperation system that gas is separated absorption, only carry out a gas absorption desorb, clean gas through absorption is standby in the adsorption tower inflow gas holding vessel, gas purity through once absorption also needs further raising because of various factors sometimes, how further to improve the purity of clean gas in the gas storage tank, be the technical barrier that perplexs the professional and technical personnel for a long time, fail effectively to solve always.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of further pressure-swing adsorption air separation system that improves of purity that can make clean gas in the gas storage tank.
The technical solution of the utility model is a kind of pressure-swing adsorption air separation system that is used for second adsorption, comprise adsorption tower, the air input unit that on the input port of adsorption tower, connects by pipeline, the input port of adsorption tower also is connected with the normal pressure desorption apparatus, the delivery outlet of adsorption tower is connected with electrically-controlled valve and check valve, in parallel between electrically-controlled valve and the check valve, be connected in series a divided gas flow holding vessel again, the outlet of divided gas flow holding vessel is connected with stop valve, is provided with molecular sieve in the described divided gas flow holding vessel.
The molecular sieve that is provided with in the divided gas flow holding vessel is the system oxygen molecular sieve, it also can be system nitrogen molecular sieve, the volume of divided gas flow holding vessel is smaller or equal to half of adsorption tower volume, air cleaner, air compressor, condenser, check valve, air tank, the electrically-controlled valve of air input unit for being connected in series successively, the normal pressure desorption apparatus is an electrically-controlled valve.
Beneficial effect: the utility model is by in pressure-swing adsorption air separation system, add molecular sieve in the clean gas holding vessel, pure oxygen that further absorption process adsorption tower once adsorbs or the impure gas in the pure nitrogen gas, make the pure oxygen in the clean gas holding vessel or the purity of pure nitrogen gas obtain further to improve, solved the problem that effectively solved of failing for a long time.
Description of drawings
Fig. 1 is a pressure-swing adsorption air separation system structural representation of the present utility model
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing
A kind of air separation and adsorption system that is used for second adsorption shown in Figure 1, comprise air cleaner 1, air compressor 2, condenser 3, check valve 4, air tank 5, the air input unit that electrically-controlled valve 6 is formed by connecting is connected on the input port 12 of adsorption tower 7 by pipeline, the input port 12 of adsorption tower 7 also is connected with normal pressure desorption apparatus 10, the delivery outlet 11 of adsorption tower 7 is parallel with electrically-controlled valve 8 and check valve 9, be connected in series a divided gas flow holding vessel 13 again, the outlet of divided gas flow holding vessel is connected with stop valve 14, be filled with molecular sieve in the described divided gas flow holding vessel, described normal pressure desorption apparatus 10 is an electrically-controlled valve.
During native system work, air is through air cleaner 1, flow into air compressor 2, through entering air tank 5 through check valve 4 after condenser 3 coolings, enter adsorption tower 7 absorption from air tank 5 effluent airs through electrically-controlled valve 6, the clean gas of process absorption flows into divided gas flow holding vessels 13 through the outlet 11 and the check valve 9 of adsorption tower 7, electrically-controlled valve 10 is carried out the normal pressure desorb, be filled with system oxygen molecular sieve or system nitrogen molecular sieve in the divided gas flow holding vessel 13, gas is further absorption in holding vessel 13, purity is further enhanced, clean gas through second adsorption discharges by the stop valve 14 that holding vessel 13 exports, and the foreign gas of absorption enters in the adsorption tower 7 by holding vessel 13 inlet and electrically-controlled valve 8 blowbacks of opening, gas emptying with the free space in the adsorption tower, thereby recover the adsorption capacity of molecular sieve, this process enters next do action process after finishing.

Claims (6)

1, a kind of pressure-swing adsorption air separation system of second adsorption, comprise adsorption tower (7), the air input unit that connects by pipeline is gone up in input port (12) in adsorption tower (7), the input port (12) of adsorption tower (7) also is connected with normal pressure desorption apparatus (10), the delivery outlet (11) of adsorption tower (7) is connected with electrically-controlled valve (8) and check valve (9), be in parallel between electrically-controlled valve (8) and the check valve (9), be connected in series a divided gas flow holding vessel (13) again, the outlet of divided gas flow holding vessel (13) is connected with stop valve (14), it is characterized in that: be provided with molecular sieve in the described divided gas flow storage tank (13).
2, pressure-swing adsorption air separation system according to claim 1 is characterized in that: the molecular sieve that is provided with in the described divided gas flow storage tank (13) is the system oxygen molecular sieve.
3, pressure-swing adsorption air separation system according to claim 1 is characterized in that: the molecular sieve that is provided with in the described divided gas flow storage tank (13) is system nitrogen molecular sieve.
4, pressure-swing adsorption air separation system according to claim 1 is characterized in that: the volume of described divided gas flow storage tank (13) is smaller or equal to half of adsorption tower (7) volume.
5, pressure-swing adsorption air separation system according to claim 1, it is characterized in that: air cleaner (1), air compressor (2), condenser (3), check valve (4), air tank (5), the electrically-controlled valve (6) of described air input unit for being connected in series successively, the output of electrically-controlled valve (6) is connected on the input port (12) of adsorption tower (7).
6, pressure-swing adsorption air separation system according to claim 1 is characterized in that: normal pressure desorption apparatus (10) is an electrically-controlled valve.
CNU2007200433751U 2007-10-30 2007-10-30 Secondary adsorption pressure swing adsorption air separation system Expired - Fee Related CN201120244Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200433751U CN201120244Y (en) 2007-10-30 2007-10-30 Secondary adsorption pressure swing adsorption air separation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200433751U CN201120244Y (en) 2007-10-30 2007-10-30 Secondary adsorption pressure swing adsorption air separation system

Publications (1)

Publication Number Publication Date
CN201120244Y true CN201120244Y (en) 2008-09-24

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Family Applications (1)

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CNU2007200433751U Expired - Fee Related CN201120244Y (en) 2007-10-30 2007-10-30 Secondary adsorption pressure swing adsorption air separation system

Country Status (1)

Country Link
CN (1) CN201120244Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106348260A (en) * 2016-10-13 2017-01-25 池州山立分子筛有限公司 Nitrogen gas generation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106348260A (en) * 2016-10-13 2017-01-25 池州山立分子筛有限公司 Nitrogen gas generation device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20090320

Address after: A, zone 03, South Station economic development garden, New South District, Jiangsu, Wuxi, China: 214027

Patentee after: Wuxi Hualing Filter Equipment Co., Ltd.

Address before: A, zone 03, South Station economic development garden, New South District, Jiangsu, Wuxi, China: 214027

Patentee before: Wuxi Huafeng Gas Separation Equipment Co., Ltd.

ASS Succession or assignment of patent right

Owner name: WUXI CITY HUALING FILTER EQUIPMENT CO., LTD.

Free format text: FORMER OWNER: WUXI CITY HUAFENG GAS SEPARATION EQUIPMENT CO., LTD.

Effective date: 20090320

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

Granted publication date: 20080924

Termination date: 20101030