CN202849068U - Non-equal pressure equalizing apparatus for pressure swing adsorption nitrogen production equipment - Google Patents
Non-equal pressure equalizing apparatus for pressure swing adsorption nitrogen production equipment Download PDFInfo
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- CN202849068U CN202849068U CN201220452414.4U CN201220452414U CN202849068U CN 202849068 U CN202849068 U CN 202849068U CN 201220452414 U CN201220452414 U CN 201220452414U CN 202849068 U CN202849068 U CN 202849068U
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- pneumavalve
- pneumatic valve
- pipeline
- adsorption tower
- nitrogen
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Abstract
The utility model discloses nitrogen production equipment, and especially relates to a non-equal pressure equalizing apparatus for pressure swing adsorption nitrogen production equipment. A pipe connected to the top of a first absorption column (11) is provided with a fifth pneumatic valve (5); the pipe connected to the middle part of the first absorption column (11) is provided with a ninth pneumatic valve (9); and the pipe connected with the bottom of the first absorption column (11) is provided with a first pneumatic valve (1) and a third pneumatic valve (3) in parallel; the pipe connected with the top of a second absorption column (22) is provided with a sixth pneumatic valve (6); the pipe connected to the middle part of the second absorption column (22) is provided with a tenth pneumatic valve (10); and the pipe connected to the bottom of the second absorption column (11) is provided with a second pneumatic valve (2) and a fourth pneumatic valve (4) in parallel; the pipes on which the first pneumatic valve (1) and the second pneumatic valve (2) are arranged are intercommunicated and connected to an emptier; the pipes on which the fifth pneumatic valve (5) and the sixth pneumatic valve (6) are arranged are intercommunicated and connected to a nitrogen outlet pipe; and the pipes on which the ninth pneumatic valve (9), the tenth pneumatic valve (10), the third pneumatic valve (3) and the fourth pneumatic valve (4) are arranged are communicated with each other and connected to an air inlet. The apparatus provided by the utility model solves the problems of low nitrogen utilization rate, high compressed air consumption and low nitrogen production rate of molecular sieves of the conventional pressure equalizing apparatus.
Description
Technical field
The utility model relates to a kind of equipment of making nitrogen, relates in particular to a kind of inequality equalizing device for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE.
Background technology
In the prior art, be used for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE equalizing device its all on the pressure mode to upper and lower under all pressures mode, because the Nitrogen plant nitrogen gas purity progressively increases progressively in adsorption tower from top to bottom, so causing the defective of this equalizing device is that the nitrogen utilization ratio is low in the pressure equalizing, cause compressed air loss large, under equal conditions, the molecular sieve denitrification production rate is low.
The utility model content
The purpose of this utility model is to be provided for the inequality equalizing device of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE, and it is low to solve existing equalizing device nitrogen utilization ratio, the large and low problem of molecular sieve denitrification production rate of compressed air loss.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of inequality equalizing device for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE, comprise the first adsorption tower and the second adsorption tower, the pipeline that described the first adsorption tower top connects is provided with the 5th pneumavalve, the pipeline that the middle part connects is provided with the 9th pneumavalve, and parallel connection is provided with the first pneumavalve and the 3rd pneumavalve on the pipeline that the bottom connects; The pipeline that described the second adsorption tower top connects is provided with the 6th pneumavalve, and the pipeline that the middle part connects is provided with the tenth pneumavalve, and parallel connection is provided with the second pneumavalve and the 4th pneumavalve on the pipeline that the bottom connects; The pipeline at wherein said the first pneumavalve and the second pneumavalve place is interconnected and is connected to emptier, the pipeline at described the 5th pneumavalve and the 6th pneumavalve place is interconnected and is connected to the nitrogen outlet pipeline, and described the 9th pneumavalve, the tenth pneumavalve, the 3rd pneumavalve and the 4th pneumavalve place pipeline are interconnected and are connected to gas inlet.
For making the utility model play better technique effect:
Further technical scheme is that the pipeline at above-mentioned nitrogen outlet place is provided with the 8th pneumavalve.
Further technical scheme is that the pipeline at above-mentioned gas inlet place is provided with the 7th pneumavalve.
The beneficial effect that adopts technique scheme to produce is: gas was drawn from the adsorption tower middle part that absorption finishes and is entered the adsorption tower bottom that desorption finishes when inequality was all pressed, progressively increase progressively from top to bottom in adsorption tower according to the Nitrogen plant nitrogen gas purity, like this that nitrogen gas purity is higher gas all is pressed onto another adsorption tower from adsorption tower, improved the nitrogen gas concn of another adsorption tower, reduce simultaneously the absorption of the interior carbonaceous molecular sieve of adsorption tower to oxygen, improved the utilization ratio of carbonaceous molecular sieve.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for the inequality equalizing device of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 shows the embodiment that the utility model is used for the inequality equalizing device of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE: a kind of inequality equalizing device for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE, comprise the first adsorption tower 11 and the second adsorption tower 12, the pipeline that described the first adsorption tower 11 tops connect is provided with the 5th pneumavalve 5, the pipeline that the middle part connects is provided with the 9th pneumavalve 9, and parallel connection is provided with the first pneumavalve 1 and the 3rd pneumavalve 3 on the pipeline that the bottom connects; The pipeline that described the second adsorption tower 22 tops connect is provided with the 6th pneumavalve 6, and the pipeline that the middle part connects is provided with the tenth pneumavalve 10, and parallel connection is provided with the second pneumavalve 2 and the 4th pneumavalve 4 on the pipeline that the bottom connects; The pipeline at wherein said the first pneumavalve 1 and the second pneumavalve 2 places is interconnected and is connected to emptier, the pipeline at described the 5th pneumavalve 5 and the 6th pneumavalve 6 places is interconnected and is connected to the nitrogen outlet pipeline, and described the 9th pneumavalve 9, the tenth pneumavalve 10, the 3rd pneumavalve 3 and the 4th pneumavalve 4 place pipelines are interconnected and are connected to gas inlet.
According to the utility model another embodiment for the inequality equalizing device of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE, the pipeline at nitrogen outlet place is provided with the 8th pneumavalve 8.
According to the utility model another embodiment for the inequality equalizing device of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE, the pipeline at gas inlet place is provided with the 7th pneumavalve 7.
Principle of work of the present utility model is:
When 11 work of the first adsorption tower, the second adsorption tower 22 desorption and regenerations, open the 7th pneumavalve 7, the 3rd pneumavalve 3, the 5th pneumavalve 5, the 8th pneumavalve 8, the second pneumavalve 2, all the other pneumavalves cut out, dry pressurized air enters the first adsorption tower 11 through the 7th pneumavalve 7, the 3rd pneumavalve 3, the first adsorption tower 11 interior carbonaceous molecular sieve adsorption of oxygen, nitrogen is sent by the 5th pneumavalve 5, the 8th pneumavalve 8, and simultaneously the carbonaceous molecular sieve in the second adsorption tower 22 discharges oxygen rich gas regeneration being depressurized under the atmospheric condition.
In the time of need to all pressing, after the molecular sieve adsorption in the first adsorption tower 11 is saturated, the second adsorption tower 22 has been regenerated, in order fast the second adsorption tower 22 to be carried out punching press, improve simultaneously the utilization ratio of nitrogen, open pneumavalve the 5th pneumavalve 5, the 6th pneumavalve 6, the 9th pneumavalve 9, the 4th pneumavalve 4, all the other pneumavalves cut out, the rich nitrogen of the high density on the first adsorption tower 11 middle parts and top is by the 5th pneumavalve V5, the 6th pneumavalve 6, the 9th pneumavalve 9, the 4th pneumavalve 4 enters the second adsorption tower 22, when the pressure in the first adsorption tower 11 and the second adsorption tower 22 is suitable, all presses and finish; When 22 absorption of the second adsorption tower, 11 regeneration of the first adsorption tower, open the 7th pneumavalve 7, the 4th pneumavalve 4, the 6th pneumavalve 6, the 8th pneumavalve 8, the first pneumavalve 1, all the other pneumavalves cut out, dry pressurized air through the 7th open pneumavalve 7, the 4th pneumavalve 4 enters the second adsorption tower 22, carbonaceous molecular sieve adsorption of oxygen in the second adsorption tower 22, nitrogen is sent by the 6th pneumavalve 6, the 8th pneumavalve 8, and the carbonaceous molecular sieve in the first adsorption tower 11 is depressed under the atmospheric condition in reduction and discharges oxygen recovery simultaneously.
Again all press, after the second adsorption tower 22 molecular sieve adsorption are saturated, the first adsorption tower 11 has been regenerated, in order fast the first adsorption tower 11 to be carried out punching press, improve simultaneously the utilization ratio of nitrogen, open the 5th pneumavalve 5, the 6th pneumavalve 6, the tenth pneumavalve 10, the 3rd pneumavalve 3, all the other pneumavalves cut out, the rich nitrogen of the high density on the first adsorption tower 11 middle parts and top enters the second adsorption tower 22 by the 5th pneumavalve 5, the 6th pneumavalve 6, the tenth pneumavalve 10, the 3rd pneumavalve 3, when two pressure towers are suitable, all press and finish.So iterative cycles successively closes out nitrogen and goes out.
" embodiment " who speaks of in this manual, " another embodiment ", " embodiment ", " preferred embodiment " etc., the specific features, structure or the characteristics that refer in conjunction with this embodiment description are included among at least one embodiment of the application's generality description.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification sheets.Furthermore, when describing a specific features, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also drop in the scope of the present utility model.
Although with reference to a plurality of explanatory embodiment of the present utility model the utility model is described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and embodiment will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be obvious.
Claims (3)
1. inequality equalizing device that is used for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE, comprise the first adsorption tower (11) and the second adsorption tower (12), it is characterized in that: the pipeline that described the first adsorption tower (11) top connects is provided with the 5th pneumavalve (5), the pipeline that the middle part connects is provided with the 9th pneumavalve (9), and parallel connection is provided with the first pneumavalve (1) and the 3rd pneumavalve (3) on the pipeline that the bottom connects; The pipeline that described the second adsorption tower (22) top connects is provided with the 6th pneumavalve (6), the pipeline that the middle part connects is provided with the tenth pneumavalve (10), and parallel connection is provided with the second pneumavalve (2) and the 4th pneumavalve (4) on the pipeline that the bottom connects; The pipeline at wherein said the first pneumavalve (1) and the second pneumavalve (2) place is interconnected and is connected to emptier, the pipeline at described the 5th pneumavalve (5) and the 6th pneumavalve (6) place is interconnected and is connected to the nitrogen outlet pipeline, and described the 9th pneumavalve (9), the tenth pneumavalve (10), the 3rd pneumavalve (3) and the 4th pneumavalve (4) place pipeline are interconnected and are connected to gas inlet.
2. the inequality equalizing device for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE according to claim 1, it is characterized in that: the pipeline at described nitrogen outlet place is provided with the 8th pneumavalve (8).
3. the inequality equalizing device for THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE according to claim 1, it is characterized in that: the pipeline at described gas inlet place is provided with the 7th pneumavalve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452414.4U CN202849068U (en) | 2012-09-07 | 2012-09-07 | Non-equal pressure equalizing apparatus for pressure swing adsorption nitrogen production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452414.4U CN202849068U (en) | 2012-09-07 | 2012-09-07 | Non-equal pressure equalizing apparatus for pressure swing adsorption nitrogen production equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202849068U true CN202849068U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220452414.4U Expired - Lifetime CN202849068U (en) | 2012-09-07 | 2012-09-07 | Non-equal pressure equalizing apparatus for pressure swing adsorption nitrogen production equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152145A (en) * | 2015-08-12 | 2015-12-16 | 杭州天利空分设备制造有限公司 | Nitrogen production device provided with oxygen recovery system |
-
2012
- 2012-09-07 CN CN201220452414.4U patent/CN202849068U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152145A (en) * | 2015-08-12 | 2015-12-16 | 杭州天利空分设备制造有限公司 | Nitrogen production device provided with oxygen recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG TUOHANG INDUSTRIAL EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHEJIANG TUOHANG MECHANICAL AND ELECTRICAL EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 311401 Zhejiang, Hangzhou, Fuyang, Dongzhou street, East Hope Road, building 18, No. second Patentee after: ZHEJIANG TUOHANG INDUSTRIAL EQUIPMENT Co.,Ltd. Address before: 311400, second, 18 East Hope Road, Dongzhou street, Zhejiang, Fuyang Patentee before: ZHEJIANG TUOHANG MECHANICAL AND ELECTRICAL EQUIPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |