CN106241744B - A kind of low energy consumption multitower VPSA oxygen techniques - Google Patents
A kind of low energy consumption multitower VPSA oxygen techniques Download PDFInfo
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- CN106241744B CN106241744B CN201610592855.7A CN201610592855A CN106241744B CN 106241744 B CN106241744 B CN 106241744B CN 201610592855 A CN201610592855 A CN 201610592855A CN 106241744 B CN106241744 B CN 106241744B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
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- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention discloses a kind of low energy consumption multitower VPSA oxygen techniques, the adsorption tower group of at least two groups parallel connection is set, every group of adsorption tower group by two adsorption tower groups in parallel at, the oxygen technique processed is in every group of adsorption tower group, when controlling any adsorption tower absorption, another adsorption tower is made to complete the circulation absorption process of parsing.Two adsorption tower absorption in parallel, the interaction of resolving in every group of adsorption tower group can be achieved in the present invention, that is, in every group of adsorption tower group, one adsorption tower can be adsorbed, parsing can be achieved at the same time in another adsorption tower, is conducive to the progress for adsorbing and parsing stable and continuous, is that product air-flow reaches stable.
Description
Technical field
The present invention is a kind of low energy consumption multitower VPSA oxygen techniques, and in particular to is realized using four tower VPSA oxygen generation systems
The oxygen technological process processed that energy consumption can be reduced, belongs to industrial oxygenerating technical field.
Background technology
VPSA oxygenerating technologies are the oxygen generation systems of pressurized adsorbent vacuum analysis, under conditions of penetrating atmospheric pressure, utilize system
Moisture in nitrogen and utilization aluminum oxide molecular sieve absorption air in the dedicated molecular sieve used selective absorption air of oxygen etc. is miscellaneous
Matter mainly enters adsorption tower by air blower air-supply, and oxygen after absorption is at low-pressure state transmitting system, and tower inner molecular sieve
Adsorbent recycles after recycling vacuum pump to carry out vacuum analysis.In prior art production, it is commonly present following situations：
1）It is continuous oxygen-enriched to obtain using two tower VPSA oxygen generation systems.When a tower is in adsorbed state, another tower into
Row parsing, two towers alternate effect, and still, due to being pressurized adsorbent negative pressure resolving, the pressure difference in tower changes greatly, from
The product gas flow velocity that tower top is sent out is fluctuated with pressure transient.
2）In addition to the VPSA oxygen generation systems of two towers, the big engineering project of product flow can also use four tower VPSA oxygen systems
System, but usually two tower oxygen generation system parallel running, for example, existing patent document CN102049170A（A kind of VPSA air point
From the oxygen-enriched flow of system, 2011.05.11）Disclose it is a kind of mainly by two groups or more adsorption tower group and vacuum pump,
The VPSA oxygen generation systems of valve and pipeline composition, wherein every group of adsorption tower group passes through pipeline and valve by upper and lower two adsorption towers
It is formed by connecting, the oxygen-enriched flow of VPSA systems includes the following steps successively：（1）Absorption；（2）The parallel drop pressure of the upper and lower tower of tower group；
（3）The upper and lower tower paralleling abstracting vacuum of tower group；（4）The parallel boost pressure of the upper and lower tower of tower group；（5）Boosting.In like products demand
In the case of, four tower VPSA oxygen generation systems more save energy consumption than two Tower Systems used in parallel, but due to the absorption in same group
Tower still shares an air blower or vacuum pump, therefore, the product gas flow velocity for not solving to send out from tower top with pressure not
The case where stablizing and fluctuating.
3）For the power-equipment of existing VPSA oxygen generation systems, relies primarily on air blower and carries out air pressurized air-supply,
And vacuum pump carries out adsorbent parsing emptying, the prior art is often that both power-equipments point are independently arranged, respectively by each
From motor drive its operating, there are system energy consumptions it is high, occupation area of equipment is big, operation noise is big the defects of.
Invention content
The purpose of the present invention is to provide a kind of low energy consumption multitower VPSA oxygen technique, it can be achieved that two in every group of adsorption tower group
Adsorption tower absorption, the interaction of resolving of parallel connection, that is, in every group of adsorption tower group, an adsorption tower can be adsorbed, another suction
Parsing can be achieved at the same time in attached tower, is conducive to the progress for adsorbing and parsing stable and continuous, is that product air-flow reaches stable.
The present invention is achieved through the following technical solutions：A kind of low energy consumption multitower VPSA oxygen techniques, setting at least two groups are simultaneously
The adsorption tower group of connection, every group of adsorption tower group by two adsorption tower groups in parallel at, the oxygen technique processed be in every group of adsorption tower group,
When controlling any adsorption tower absorption, another adsorption tower is made to complete the circulation absorption process of parsing.
The adsorption tower is completed the buffered tank of the gas obtained after absorption and is sent out.
Between the adsorption tower group, the adsorption tower for completing parsing is interconnected.
At least two groups power-equipment is set, and every group of power-equipment includes air blower, motor and vacuum pump, and the adsorption tower is inhaled
When attached, interlocked by the air blower in every group of power-equipment and complete the air-supply absorption of the adsorption tower；When the adsorption tower parsing, by
Vacuum pump in every group of power-equipment, which interlocks, completes the parsing of the adsorption tower.
In every group of adsorption tower group, shaft, the vacuum pump shaft of air blower are coaxial with machine shaft.
Compared with prior art, the present invention haing the following advantages and advantageous effect：
（1）Present invention process can realize the interworking of each adsorption tower absorption and resolving in multigroup adsorption tower group, with
For two groups of adsorption tower groups, you can realize that arbitrary two tower can be carried out at the same time absorption and other two tower is realized parse simultaneously
Journey realizes that the progress of absorption and parsing stable and continuous, product air-flow reach stable.
（2）Present invention process be provided at least two groups air blower, motor and vacuum pump group at a set of power-equipment, can lead to
The control of piping connection and valve is crossed, realizes that any one raw air carries out pressurized feed to any one adsorption tower, with
And any one vacuum pump can carry out vacuum analysis to the adsorbent in any one adsorption tower, more conducively realize product air-flow
The state of continuous-stable.
（3）Air blower and vacuum pump use coaxial with motor of the present invention, having reduces energy consumption, saves equipment arrangement
Space reduces cost, reduces the production effect of noise decibel.
Description of the drawings
Fig. 1 is the structural diagram of the present invention（One）.
Fig. 2 is the structural schematic diagram of the present invention（Two）.
Specific implementation mode
The present invention is described in further detail with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1：
The present embodiment proposes a kind of low energy consumption multitower VPSA oxygen techniques, includes the adsorption tower group of at least two groups parallel connection,
Every group of adsorption tower group is by two adsorption tower groups in parallel at the oxygen technique processed is to control any adsorption tower in every group of adsorption tower group
When absorption, another adsorption tower is made to complete the circulation absorption process of parsing.Adsorption tower completes the buffered tank of gas obtained after absorption
It sends out.
It includes parallel connection that the present embodiment, which uses two groups of adsorption tower groups, i.e. 1# adsorption tower groups and 2# adsorption tower groups, 1# adsorption tower groups,
The adsorption tower A and adsorption tower B, 2# adsorption tower group of setting include the adsorption tower C being arranged in parallel, adsorption tower D；1# adsorption tower groups and 2#
It is both provided with air blower and vacuum pump in adsorption tower group, adsorption tower pressure air blowing is completed to adsorb by air blower, vacuum pump is complete
At the parsing of adsorption tower；In 1# adsorption tower groups, valve is equipped in the connecting pipe of air blower and adsorption tower A and adsorption tower B successively
Valve KV1a and valve are equipped in the connecting pipe of KV4a and valve KV4b, vacuum pump and adsorption tower A and adsorption tower B successively
KV1b；In 2# adsorption tower groups, valve KV4c and valve are equipped in the connecting pipe of air blower and adsorption tower C and adsorption tower D successively
Valve KV1c and valve KV1d is equipped in the connecting pipe of KV4d, vacuum pump and adsorption tower C and adsorption tower D successively；I.e. such as Fig. 1 institutes
Show structure.
The present embodiment can realize the reciprocation of any adsorption tower absorption parsing in adsorption tower group, as shown in Figure 1, when opening
Valve KV4a, valve KV4c, valve KV2a, valve KV2c, closure valve KV4b, valve KV4d, valve KV2b, valve KV2d
When, air blower is sent into air to adsorption tower A and adsorption tower C, and adsorption tower A and adsorption tower C carry out adsorption process；At the same time, it inhales
Attached tower B and adsorption tower D carry out resolving, that is, Open valve KV1b, valve KV1d, closure valve KV1a and valve KV1c.Together
Reason can also realize the interaction that above-mentioned adsorption tower is adsorbed and parsed by the control of valve.
Embodiment 2：
The present embodiment proposes a kind of low energy consumption multitower VPSA oxygen techniques, and the present embodiment can be realized between any adsorption tower
The interaction of parsing is adsorbed, structure is additionally arranged on the basis of embodiment 1 with lower structure：At least two groups power-equipment is set, often
Group power-equipment includes air blower, motor and vacuum pump, in every two groups of adsorption tower groups, connects the pipe of air blower and two adsorption towers
Between road, connecting pipe is equipped between connection vacuum pump and the pipeline of two adsorption towers, connecting pipe is equipped with valve, can be real
Now when adsorption tower adsorbs, adsorption tower air-supply absorption is staggeredly completed by the air blower in every group of power-equipment；When adsorption tower solution
When analysis, adsorption tower parsing is staggeredly completed by the vacuum pump in every group of power-equipment.In every group of adsorption tower group, it is equipped with connection two
The connection branch pipe at adsorption column outlet end is connected between branch pipe and two adsorption column outlet ends and is equipped with valve, every two groups of adsorption tower groups it
Between connection branch pipe be then connected to or block by valve and complete the adsorption tower of parsing, it can be achieved that between adsorption tower group and be interconnected.
As shown in Fig. 2, the present embodiment is additionally arranged connection branch pipe on the basis of embodiment 1, and in 1# adsorption tower groups, connection
It is equipped between valve KV3a, with adsorption tower B between branch pipe and adsorption tower A and is equipped with valve KV3b；In 2# adsorption tower groups, connected component
It is equipped between valve KV3c, with adsorption tower D between pipe and adsorption tower C and is equipped with valve KV3d, the communicating pipe between two groups of adsorption towers
Road is by inventing V6 connections or blocking.In 1# adsorption tower groups and 2# adsorption tower groups, the pipe of air blower and two adsorption towers is connected
Road（I.e. 1# air blowers connection adsorption tower A connects the pipeline of adsorption tower C and adsorption tower D with the pipeline of adsorption tower B, 2# air blowers）It
Between be equipped with connecting pipe, invention V5 is set on connecting pipe；It connects and is equipped with communicating pipe between vacuum pump and the pipeline of two adsorption towers
Road, for convenience of the use of the present embodiment intermediate pump, connecting pipe is equipped with valve V1, V2, V3, V4 as shown in Figure 2.
In the present embodiment, it is parsed when adsorption tower A and adsorption tower C carry out adsorption process, adsorption tower B and adsorption tower D
When process, it should also be closed at valve V3, V4, V5 and V6.
For the power-equipment of 1# adsorption tower groups and 2# adsorption tower groups, the present embodiment uses in every group of adsorption tower group,
Shaft, the vacuum pump shaft of the air blower mode coaxial with machine shaft pass through 1# air blowers and 1# vacuum pumps coaxial public one
The mode of the coaxial public motor of platform motor, 2# air blowers and 2# vacuum pumps, reduces energy consumption, and reach with this and reduce noise point
Shellfish saves the purpose of the device space.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the technical spirit of the present invention to any simple modification, equivalent variations made by above example, the protection of the present invention is each fallen within
Within the scope of.
Claims (3)
1. a kind of low energy consumption multitower VPSA oxygen techniques, it is characterised in that：The adsorption tower group of at least two groups parallel connection, every group of suction are set
Attached tower group is by two adsorption tower groups in parallel at the oxygen technique processed is to control any adsorption tower absorption in every group of adsorption tower group
When, so that another adsorption tower is completed the circulation absorption process of parsing, between the adsorption tower group, the adsorption tower for completing parsing mutually interconnects
It is logical,
At least two groups power-equipment is set, and every group of power-equipment includes air blower, motor and vacuum pump, the adsorption tower absorption
When, adsorption tower air-supply absorption is staggeredly completed by the air blower in every group of power-equipment；When the adsorption tower parsing, moved by every group
Vacuum pump in power equipment staggeredly completes adsorption tower parsing.
2. a kind of low energy consumption multitower VPSA oxygen techniques according to claim 1, it is characterised in that：The adsorption tower is completed
The buffered tank of gas obtained after absorption is sent out.
3. a kind of low energy consumption multitower VPSA oxygen techniques according to claim 1, it is characterised in that：Every group of adsorption tower
In group, shaft, the vacuum pump shaft of air blower are coaxial with machine shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610592855.7A CN106241744B (en) | 2016-07-26 | 2016-07-26 | A kind of low energy consumption multitower VPSA oxygen techniques |
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| CN201610592855.7A CN106241744B (en) | 2016-07-26 | 2016-07-26 | A kind of low energy consumption multitower VPSA oxygen techniques |
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| CN106241744A CN106241744A (en) | 2016-12-21 |
| CN106241744B true CN106241744B (en) | 2018-10-19 |
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| CN114471082B (en) * | 2021-12-27 | 2023-11-24 | 昆山欧拓气体设备有限公司 | Energy-saving VPSA oxygen production method and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102049170B (en) * | 2009-11-09 | 2013-09-11 | 成都华西工业气体有限公司 | Process for producing rich oxygen by VPSA (vacuum pressure swing adsorption) air separation |
| CN203212325U (en) * | 2013-04-12 | 2013-09-25 | 杭州辰睿空分设备制造有限公司 | Molecular sieve desorption and regeneration structure for VPSA (vacuum pressure swing adsorption) oxygen generating device |
| CN204656291U (en) * | 2015-04-08 | 2015-09-23 | 南京净环热冶金工程有限公司 | A kind of novel energy-conserving VPSA oxygen generating plant |
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