CN209872368U - Pressure swing adsorption device for rapidly preparing high-purity nitrogen - Google Patents
Pressure swing adsorption device for rapidly preparing high-purity nitrogen Download PDFInfo
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- CN209872368U CN209872368U CN201920516809.8U CN201920516809U CN209872368U CN 209872368 U CN209872368 U CN 209872368U CN 201920516809 U CN201920516809 U CN 201920516809U CN 209872368 U CN209872368 U CN 209872368U
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Abstract
The utility model relates to a pressure swing adsorption nitrogen generator technical field, in particular to prepare pressure swing adsorption equipment of high-purity nitrogen gas fast, including A adsorption tower, B adsorption tower, nitrogen gas storage tank, silencer, the bottom of A adsorption tower, B adsorption tower be equipped with A tower admission valve, A tower regeneration valve, B tower admission valve, B tower regeneration valve through the pipeline respectively, A tower admission valve and B tower admission valve between be equipped with total admission valve, the top of A adsorption tower, B adsorption tower be equipped with A tower air outlet valve, B tower air outlet valve through the pipeline respectively, be equipped with total air outlet valve between A tower air outlet valve, the B tower air outlet valve, one side of total air outlet valve connect respectively the filter of giving vent to anger through the pipeline, the check valve, A adsorption tower and B adsorption tower top between be equipped with the blowback valve. The utility model has the advantages that: the faster preparation of high-purity nitrogen can not only meet the requirements of a production line, but also avoid the waste of electricity for an air compressor dryer and the like caused by the emptying with unqualified purity.
Description
Technical Field
The utility model relates to a pressure swing adsorption nitrogen generator technical field, in particular to prepare pressure swing adsorption equipment of high-purity nitrogen gas fast.
Background
The pressure swing adsorption nitrogen making machine takes air as a raw material, and separates nitrogen and oxygen in the air by utilizing the difference of diffusion rates of the nitrogen and the oxygen on the surface of a carbon molecular sieve. When the machine is stopped and restarted, a part of air can be sent to a later-stage storage tank or a production line, and the product quality can be influenced or accidents can occur. At present, a small nitrogen storage tank is generally added behind an adsorption tower, and air entering the storage tank is slowly replaced after the adsorption tower is started. If the high-purity nitrogen gas with the purity of more than 99.99 percent needs to be prepared, the time is relatively long, about 1 hour of the purity of 99.99 percent, and about 2 hours of the purity of 99.999 percent, and the gas used for production is seriously influenced.
Disclosure of Invention
In order to solve the problems of the prior art, the utility model provides a pressure swing adsorption device for rapidly preparing high-purity nitrogen gas with simple structure and shortened replacement time.
The technical scheme of the utility model as follows:
the utility model provides a prepare pressure swing adsorption equipment of high-purity nitrogen gas fast, includes A adsorption tower, B adsorption tower, nitrogen gas storage tank, silencer, the bottom of A adsorption tower, B adsorption tower be equipped with A tower admission valve, A tower regeneration valve, B tower admission valve, B tower regeneration valve through the pipeline respectively, A tower admission valve and B tower admission valve between be equipped with total admission valve, the top of A adsorption tower, B adsorption tower be equipped with A tower air outlet valve, B tower air outlet valve through the pipeline respectively, A tower air outlet valve, B tower air outlet valve between be equipped with total air outlet valve, one side of total air outlet valve connect respectively the filter of giving vent to anger, the check valve through the pipeline, A adsorption tower and B adsorption tower top between be equipped with the blowback valve.
The utility model provides a beneficial effect that technical scheme brought is:
through the open time of the control total gas outlet valve, the air in the A, B two towers is firstly emptied when the adsorption just begins, so that the air can not reach the rear-stage storage tank, the time for replacing the rear-stage storage tank is greatly shortened, and the air can be used only in about 30 minutes under the condition that the rear-stage storage tank stores high-purity nitrogen. The faster preparation of high-purity nitrogen can not only meet the requirements of a production line, but also avoid the waste of electricity for an air compressor dryer and the like caused by the emptying with unqualified purity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, a pressure swing adsorption device for rapidly preparing high-purity nitrogen comprises an a adsorption tower 12, a B adsorption tower 13, a nitrogen storage tank and a silencer, wherein the bottoms of the a adsorption tower 12 and the B adsorption tower 13 are respectively provided with an a tower air inlet valve 2, an a tower regeneration valve 4, a B tower air inlet valve 3 and a B tower regeneration valve 5 through pipelines, a main air inlet valve 1 is arranged between the a tower air inlet valve 2 and the B tower air inlet valve 3, the tops of the a adsorption tower 12 and the B adsorption tower 13 are respectively provided with an a tower air outlet valve 6 and a B tower air outlet valve 7 through pipelines, a main air outlet valve 8 is arranged between the a tower air outlet valve 6 and the B tower air outlet valve 7, one side of the main air outlet valve 8 is respectively connected with an air outlet filter 10 and a one-way valve 11 through a pipeline, and a back-flushing valve 9 is arranged between the tops of the a adsorption tower 12 and the B adsorption tower.
When the system is started, firstly, the adsorption tower A12 works, the adsorption tower B13 regenerates, the main air inlet valve 1 is opened, the air inlet valve 2 of the adsorption tower A is opened, the air outlet valve 6 of the adsorption tower A is opened, the regeneration valve 5 of the adsorption tower B is opened, and at the moment, the main air outlet valve 1 is not opened.
The adsorption of the adsorption tower A12 is carried out for 60 seconds, the adsorption tower A12 is switched to the adsorption tower B13 to work, the adsorption tower A12 is regenerated, the total air inlet valve 1 is opened, the air inlet valve and the tower A air outlet valve 6 of the adsorption tower A12 are closed, the air inlet valve and the tower B air outlet valve 7 of the adsorption tower B13 are opened, the tower B regeneration valve 5 is closed, the tower A regeneration valve 4 is opened, and the total air outlet valve 1 is still not opened.
And the adsorption of the B adsorption tower 13 is carried out for 60 seconds, the adsorption is switched to the A adsorption tower 12, the cycle is carried out, and after five cycles, the total gas outlet valve 1 is opened to supply nitrogen to a nitrogen storage tank or a growth line.
During the operation of the nitrogen making machine, in the first five periods, the adsorption tower A12 adsorbs: compressed air enters from the main air inlet valve 1, enters the tank body of the adsorption tower A12 through the tower A air inlet valve 2, is adsorbed, and oxygen in the adsorption tower B13 is discharged through the tower B regeneration valve 5. When in switching, the tower A gas outlet valve 6 and the tower B gas outlet valve 7 are opened for pressure equalization.
Adsorption in column B13: compressed air enters from the main air inlet valve 1, enters the tank body of the B adsorption tower 13 through the B tower air inlet valve 3, is adsorbed, and oxygen in the A adsorption tower 12 is discharged through the A tower regeneration valve 4. And when switching, the tower B gas outlet valve 7 and the tower A gas outlet valve 6 are opened for pressure equalization.
Thereby achieving the purpose of emptying the air in the A adsorption tower 12 and the B adsorption tower 13.
After five cycles, the total gas outlet valve 8 is opened, and the gas after adsorption in the adsorption tower A12 and the adsorption tower B13 is sent to the nitrogen storage tank.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (1)
1. The utility model provides a prepare pressure swing adsorption equipment of high-purity nitrogen gas fast, includes A adsorption tower, B adsorption tower, nitrogen gas storage tank, silencer, its characterized in that, the bottom of A adsorption tower, B adsorption tower be equipped with A tower admission valve, A tower regeneration valve, B tower admission valve, B tower regeneration valve through the pipeline respectively, A tower admission valve and B tower admission valve between be equipped with total admission valve, the top of A adsorption tower, B adsorption tower be equipped with A tower air outlet valve, B tower air outlet valve through the pipeline respectively, A tower air outlet valve, B tower air outlet valve between be equipped with total air outlet valve, one side of total air outlet valve connect respectively through the pipeline and give vent to anger filter, the check valve, A adsorption tower and B adsorption tower top between be equipped with the blowback valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516809.8U CN209872368U (en) | 2019-04-16 | 2019-04-16 | Pressure swing adsorption device for rapidly preparing high-purity nitrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516809.8U CN209872368U (en) | 2019-04-16 | 2019-04-16 | Pressure swing adsorption device for rapidly preparing high-purity nitrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209872368U true CN209872368U (en) | 2019-12-31 |
Family
ID=68960489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920516809.8U Expired - Fee Related CN209872368U (en) | 2019-04-16 | 2019-04-16 | Pressure swing adsorption device for rapidly preparing high-purity nitrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209872368U (en) |
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2019
- 2019-04-16 CN CN201920516809.8U patent/CN209872368U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20200416 |