CN201664568U - PSA high efficiency starting device - Google Patents
PSA high efficiency starting device Download PDFInfo
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- CN201664568U CN201664568U CN2010201393429U CN201020139342U CN201664568U CN 201664568 U CN201664568 U CN 201664568U CN 2010201393429 U CN2010201393429 U CN 2010201393429U CN 201020139342 U CN201020139342 U CN 201020139342U CN 201664568 U CN201664568 U CN 201664568U
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Abstract
The utility model discloses a PSA high efficiency starting device including a buffer tank, a regeneration gas branch connected to and mutually parallel connected with the buffer tank, a pre-activation branch and a finished gas branch and a gas storage tank connected with the other end of the finished gas branch. The other end of the pre-activation branch and the other end of the regeneration gas branch are in a parallel connection forming into an outlet end of the regeneration gas, the regeneration gas branch, the pre-activation branch and the finished gas branch are provided with a relief valve, and the pre-activation branch and the finished gas branch are provided with a valve. The starting device makes the best of the unqualified initial finished gas that originally evacuated, and returns the unqualified initial finished gas together with the regeneration gas to backblow and regenerate adsorption beds, thereby increasing regeneration gas volume, reducing the desorption time of adsorption beds, shortening starting time, saving energy and eliminating environmental pollution.
Description
Technical field
The utility model relates to a kind of pressure swing adsorption air separation plant, refers more particularly to a kind of PSA high efficiency and opens
Machine.
Background technology
In modern industry, variable pressure absorption technique device is that the PSA device is obtaining using widely aspect gas separation and the preparation, because each adsorption tower is cycle switch operating regeneration, all adopt the mode of the finished product circulation of vital energy in the wrong direction during regeneration to blowback, recovery time is long, it is many to consume finished product gas, increased the unit cost of finished product gas, consume in order to reduce regeneration, people have done certain improvement to variable pressure absorption technique device, as China Patent No. is CN00218588.1, name is called the utility model patent of improved double tower pressure swing adsorption oxygen making device, the adsorption tower that comprises two nitrogen adsorption agent, product gas air accumulator, it is characterized in that: also have one be used for storing and have enough to meet the need than product gas concentration low slightly as surge tank with the purgative gas of the adsorbent reactivation in the tower, a part of high concentration product gas of the port of export of the tower of the need regeneration after the purgative gas in the surge tank is all pressed from two towers, the switching time of this each control valve of patent appropriate design and order, the size of surge tank and compensator or trimmer pressure, can obtain the high product rate of recovery and product gas concentration, but can't be used to the defective initial finished product gas of device start during the stage, emptying in vain, start efficient is lower, has not only wasted the energy but also polluted environment.
The utility model content
When the utility model mainly solves common pressure-swing absorption apparatus and prepares gas, the defective initial finished product gas in device start stage can only emptying and is caused the technical problem of energy waste and environmental pollution, when a kind of start is provided defective initial finished product gas all is used as regeneration gas, improves start efficient, shorten the available machine time, save the energy and eliminate the PSA high efficiency opening device of environmental pollution.
In order to solve the technical problem of above-mentioned existence, the utility model mainly is to adopt following technical proposals:
The utility model comprises surge tank, be connected and regeneration gas branch road connected with each other with surge tank, the preactivate branch road reaches the air accumulator that is connected with the other end of finished product gas branch road with finished product gas branch road, the other end of the other end of described preactivate branch road and described regeneration gas branch road also connects the formation regeneration gas port of export, described regeneration gas branch road, be equipped with pressure-reducing valve on preactivate branch road and the finished product gas branch road, be equipped with valve on described preactivate branch road and the finished product gas branch road, when device start, underproof initial finished product gas returns with regeneration gas by the preactivate branch road adsorbent bed is carried out the blowback desorption, the defective initial finished product gas of original emptying is fully utilized, strengthened regeneration tolerance, reduced the adsorbent bed desorption time, improve the concentration of finished product gas, shortened the available machine time.
As preferably, also be provided with flowmeter and check-valves on the described regeneration gas branch road, described flowmeter is located at the centre of pressure-reducing valve and check-valves, the entrance point of check-valves is connected with flowmeter, the port of export of check-valves is near the regeneration gas port of export, check-valves can prevent the refluence of air-flow, and flowmeter can be monitored the variation of regeneration air stream in real time, improves the regeneration quality of adsorbent bed.
As preferably, the valve on the described preactivate branch road is an angle pedestal valve.
As preferably, the valve on the described finished product gas branch road is a Pneumatic butterfly valve.
As preferably, also be provided with flowmeter and check-valves on the described finished product gas branch road, the entrance point of described check-valves is connected with Pneumatic butterfly valve, and the port of export of check-valves is connected with air accumulator, and check-valves can prevent to occur the air-flow phenomenon of backflowing when the Pneumatic butterfly valve fault.
The beneficial effects of the utility model are: in the device start stage, the defective initial finished product gas of original emptying is fully utilized, return with regeneration gas adsorbent bed is carried out pulse cleaning, increased regeneration tolerance, reduced adsorbent bed desorption time, shortened the available machine time, saved the energy and eliminated environmental pollution.
Description of drawings
Fig. 1 is a kind of device schematic diagram of the present utility model.
1. surge tanks among the figure, 2. pressure-reducing valve, 3. angle pedestal valve, 4. Pneumatic butterfly valve, 5. flowmeter, 6. check-valves, 7. air accumulator.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the PSA high efficiency opening device of present embodiment, as shown in Figure 1, comprise surge tank 1, be connected and regeneration gas branch road connected with each other with surge tank, the preactivate branch road reaches the air accumulator 7 that is connected with the other end of finished product gas branch road with finished product gas branch road, the other end of the other end of preactivate branch road and regeneration gas branch road also connects the formation regeneration gas port of export, the regeneration gas branch road is provided with pressure-reducing valve 2, flowmeter 5 and check-valves 6, flowmeter is arranged between pressure-reducing valve and the check-valves, the entrance point of check-valves is connected with flowmeter, and the port of export of check-valves is near the regeneration gas port of export.The preactivate branch road is provided with pressure-reducing valve and angle pedestal valve 3, and finished product gas branch road is provided with pressure-reducing valve, flowmeter, Pneumatic butterfly valve 4 and check-valves, and the entrance point of check-valves is connected with Pneumatic butterfly valve, and the port of export of check-valves is connected with air accumulator.Finished product gas enters the regeneration gas branch road respectively by the buffering of surge tank, preactivate branch road and finished product gas branch road, the finished product gas that enters the regeneration gas branch road is through the pressure-reducing valve step-down and after the metering and check-valves anti-backflow of flowmeter, flow to adsorbent bed from the regeneration gas port of export and carry out normal blowback desorption, the finished product gas that enters the preactivate branch road through the pressure-reducing valve decompression and by angle pedestal valve with flow to adsorbent bed after regeneration gas is mixed and carry out the blowback desorption, enter the finished product gas of finished product gas branch road, after pressure-reducing valve step-down and flowmeter metering, flow into air accumulator by Pneumatic butterfly valve and check-valves, use for follow-up gas equipment, in the device start stage, angle pedestal valve is opened, Pneumatic butterfly valve is closed, finished product gas can not export but all by the preactivate branch road directly and the regeneration gas mixed flow carry out the blowback desorption to adsorbent bed, increased regeneration tolerance, accelerated the recovery time of adsorbent bed, improved the regeneration quality, shortened the time of start greatly, saved the energy, the startup stage after, finished product gas reaches design concentration, angle pedestal valve closure and Pneumatic butterfly valve is opened, close the preactivate branch road, make finished product gas all flow to air accumulator, equipment enters the operate as normal program.
Claims (5)
1. PSA high efficiency opening device, it is characterized in that: comprise that surge tank (1), an end are connected with surge tank and regeneration gas branch road, preactivate branch road and finished product gas branch road connected with each other and the air accumulator (7) that is connected with the other end of finished product gas branch road, the other end of the other end of described preactivate branch road and described regeneration gas branch road also connects the formation regeneration gas port of export, be equipped with pressure-reducing valve (2) on described regeneration gas branch road, preactivate branch road and the finished product gas branch road, be equipped with valve on described preactivate branch road and the finished product gas branch road.
2. PSA high efficiency opening device according to claim 1, it is characterized in that: also be provided with flowmeter (5) and check-valves (6) on the described regeneration gas branch road, described flowmeter is located at the centre of pressure-reducing valve (2) and check-valves, the entrance point of check-valves is connected with flowmeter, and the port of export of check-valves is near the regeneration gas port of export.
3. PSA high efficiency opening device according to claim 1 is characterized in that: the valve on the described preactivate branch road is angle pedestal valve (3).
4. PSA high efficiency opening device according to claim 1 is characterized in that: the valve on the described finished product gas branch road is Pneumatic butterfly valve (4).
5. PSA high efficiency opening device according to claim 1, it is characterized in that: also be provided with flowmeter (5) and check-valves (6) on the described finished product gas branch road, the entrance point of described check-valves is connected with Pneumatic butterfly valve (4), and the port of export of check-valves is connected with air accumulator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201393429U CN201664568U (en) | 2010-03-24 | 2010-03-24 | PSA high efficiency starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201393429U CN201664568U (en) | 2010-03-24 | 2010-03-24 | PSA high efficiency starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201664568U true CN201664568U (en) | 2010-12-08 |
Family
ID=43265519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201393429U Expired - Fee Related CN201664568U (en) | 2010-03-24 | 2010-03-24 | PSA high efficiency starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201664568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600698A (en) * | 2012-03-16 | 2012-07-25 | 浙江勤策空分设备有限公司 | Variable-pressure absorption system and control method of variable-pressure absorption system |
-
2010
- 2010-03-24 CN CN2010201393429U patent/CN201664568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600698A (en) * | 2012-03-16 | 2012-07-25 | 浙江勤策空分设备有限公司 | Variable-pressure absorption system and control method of variable-pressure absorption system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20130324 |