CN205598892U - Pressure swing adsorption air separation plant of integrated sorption drying function - Google Patents
Pressure swing adsorption air separation plant of integrated sorption drying function Download PDFInfo
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- CN205598892U CN205598892U CN201620439502.9U CN201620439502U CN205598892U CN 205598892 U CN205598892 U CN 205598892U CN 201620439502 U CN201620439502 U CN 201620439502U CN 205598892 U CN205598892 U CN 205598892U
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Abstract
The utility model discloses a pressure swing adsorption air separation plant of integrated sorption drying function, including the air compressor that connects gradually, filter no. 1, filter no. 2, compressed air buffer tank and product gas buffer tank, be provided with integrated form pressure swing adsorption separator between compressed air buffer tank and the product gas buffer tank, integrated form pressure swing adsorption separator is connected with compressed air buffer tank and product gas buffer tank the while. This scheme has correspondingly reduced automatic control's switching valve, the fault point still less, the operation of device is more reliable, the device flow shortens, and area reduces, and is especially applicable to the occasion that has the strict demand to installation space, a consume that it is about 10% that is used for the palingenetic compressed air consumption of drying device to reduce, mainly relies on the dry gas body of preserving in the air separation adsorbent layer, and the adsorbent on the sorption drying layer that is used for regenerating in regenerative process has effectively utilized the regeneration gas that the air separation adsorbent discharged, has reduced compressed air.
Description
Technical field
This utility model belongs to PSA Gas separation field, is specifically related to the pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function.
Background technology
Pressure-variable adsorption separation air assembly produces nitrogen or oxygen, is the most the most commonly used device obtaining product nitrogen gas and oxygen at normal temperatures.
But the pressure swing adsorption air segregation apparatus of prior art, the most all in the middle of two filters with filter, arranges a compressed air drier, uses freezing type or adsorption-type, as shown in Figure 1.But either freezing type or absorbed type drying device, all exist integrity problem, because the long flow path that gas separates, trouble point is many.Especially absorbed type drying device, in the case of using heatless regeneration technique, only by portion gas discharge in adsorption tower, reduction pressure regeneration, its regeneration degree of depth is the most not enough.It is thus desirable to consume substantial amounts of dry air (about 20%) blowback, for the regeneration of adsorbent, thus considerably increase compressed-air actuated consumption, reduce the economy of operation.
Utility model content
Technical problem to be solved in the utility model is the problem that heatless regeneration absorbed type drying device consumption of compressed air amount is excessive, and gas separation process is long, the problem of the many caused poor reliability in trouble point, purpose is to provide the pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function, load by adsorbent multilamellar by using dry adsorbent to separate with air, the mode of direct layering connection, eliminate compressed air and separate the drying device that front end preprocessing process is independently arranged, and be dried function and be integrated in pressure-variable adsorption segregation apparatus, solve the problems referred to above.Simultaneously under the conditions of special mounting, floor space is had to the occasion of rigors, can effectively reduce floor space.
This utility model is achieved through the following technical solutions:
A kind of pressure swing adsorption air segregation apparatus of integrated adsorption dry function, including the air compressor being sequentially connected with, filter one, filter two, compressed air surge tank and product gas surge tank, integrated form pressure-variable adsorption segregation apparatus it is provided with between described compressed air surge tank and product gas surge tank, and integrated form pressure-variable adsorption segregation apparatus is connected with compressed air surge tank and product gas surge tank simultaneously, in the middle of in-line filter group, need not be provided for removing the drying device of moisture in compressed air again
Further, integrated form pressure-variable adsorption segregation apparatus is provided with two or more adsorption tower, and adsorption tower is all connected with compressed air surge tank and product gas surge tank；Each adsorption tower is all filled with adsorbent；Adsorbent is at least by the adsorbent one for being dried, the adsorbent separated with for air 2 two kinds or above filler composition, adsorbent one is arranged on the air inlet side of adsorption tower, adsorbent one and adsorbent two are presented understructure in adsorption tower and are arranged, and directly connect, thus realize pressure swing adsorption technique alternating sorbent, regeneration.By the dried compressed air of adsorption dry layer, its aridity should reach the pressure leak source of regulation in " ISO 8573.1 compressed air quality standard " and be not less than 4 grade standards.
Further, the ratio for dry adsorbent one loaded in each adsorption tower in adsorption tower is 10 ~ 30%, and the ratio for the adsorbent two of air separation is 70 ~ 90%.The adsorbent used in the application is all current material, has any different with specific reference to different products and different product purities.
Further, the outlet of air compressor is connected with the entrance of filter one, the outlet of filter one is connected with the entrance of filter two, the outlet of filter two connects with the entrance of compressed air surge tank, the outlet of surge tank is connected with the entrance of integrated form pressure-variable adsorption segregation apparatus, and the outlet of integrated form pressure-variable adsorption segregation apparatus is connected with product gas surge tank, product gas exports from surge tank.
Further, filter one uses multiple filter to form filter group, the filter of different filtration grade be composed in series；Described filter two is mainly made up of the assembly that can remove micro oil steam or filler, the final filtering accuracy realized, need to reach regulation in " ISO 8573.1 compressed air quality standard " containing mechanical admixture 1 grade and the standard of oil-containing 1 grade.
This utility model compared with prior art, has such advantages as and beneficial effect:
(1) eliminating the compressed air drier being independently arranged, correspondingly reduce the switch valve automatically controlled, trouble point is less, and the operation of device is the most reliable；
(2) device flow process shortens, and floor space reduces, especially suitable for the occasion having strict demand to installing space；
(3) compressed air consumption for drying device regeneration reduces about 10%, rely primarily on the dry gas preserved in air separating adsorbent layer, for the adsorbent of regenerative adsorption drying layer in regenerative process, thus efficiently utilize the regeneration gas of air separating adsorbent discharge, reduce compressed-air actuated consumption.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is traditional pressure swing adsorption air segregation apparatus schematic diagram；
Fig. 2 is this utility model structural representation.
The parts title of labelling and correspondence in accompanying drawing:
1-air compressor, 2-filter one, 3-drying device, 4-filter two, 5-compressed air surge tank, 6A-integrated form pressure-variable adsorption segregation apparatus, 6B-pressure-variable adsorption segregation apparatus, 7-product gas surge tank.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of pressure swing adsorption air segregation apparatus of integrated adsorption dry function, including the air compressor 1 being sequentially connected with, filter 1, filter 24, compressed air surge tank 5 and product gas surge tank 7, it is provided with integrated form pressure-variable adsorption segregation apparatus 6A between described compressed air surge tank 5 and product gas surge tank 7, and integrated form pressure-variable adsorption segregation apparatus 6A is connected with compressed air surge tank 5 and product gas surge tank 7 simultaneously；Integrated form pressure-variable adsorption segregation apparatus 6A is provided with two or more adsorption tower, and adsorption tower is all connected with compressed air surge tank 5 and product gas surge tank 7；Each adsorption tower in adsorption tower is all filled with adsorbent；And adsorbent is at least by the adsorbent one for being dried, the adsorbent separated with for air 2 two kinds or above filler composition, adsorbent one is arranged on the air inlet side of adsorption tower, adsorbent one and adsorbent two and presents understructure setting in adsorption tower, and directly connects.Being provided with drying device 3 in traditional pressure swing adsorption air segregation apparatus, use pressure-variable adsorption segregation apparatus 6B, there is integrity problem in it, because the long flow path that gas separates, trouble point is many.Especially absorbed type drying device, in the case of using heatless regeneration technique, only by portion gas discharge in adsorption tower, reduction pressure regeneration, its regeneration degree of depth is the most not enough.It is thus desirable to consume the blowback of substantial amounts of dry air about 20%, for the regeneration of adsorbent, thus considerably increase compressed-air actuated consumption, reduce the economy of operation.And this programme is in the pressure swing adsorption air segregation apparatus that compressed air separates, it is integrated with the function that gas absorption formula is dried, after being pressurizeed by air compressor 1 by raw air, enters back into air pretreatment filter group；The compressed air filtered by preliminary clearning enters compressed air surge tank 5, is dried and separates standby for further air；Compressed air sequentially enters in the adsorption tower of integrated form pressure-variable adsorption segregation apparatus, sequentially enters air and is dried and air separating adsorbent layer, to realize being dried and separating of air；The product gas obtained after separation, exports through product gas buffer tank 7.Being not drawn into position and the structure of adsorption tower in figure, adsorption tower is existing structure, highly increased after the most integrated adsorption dry function.This programme is existing structure to be combined, use dry adsorbent to separate with air to load by adsorbent multilamellar, the mode of direct layering connection, eliminate compressed air and separate the drying device that front end preprocessing process is independently arranged, and be dried function and be integrated in pressure-variable adsorption segregation apparatus, correspondingly reduce the switch valve automatically controlled, trouble point is less, the operation of device is the most reliable, rely on the dry gas preserved in air separating adsorbent layer, for the adsorbent of regenerative adsorption drying layer in regenerative process, thus efficiently utilize the regeneration gas of air separating adsorbent discharge, reduce compressed-air actuated consumption.
Embodiment 2:
On the basis of above-described embodiment, when integrated form pressure-variable adsorption segregation apparatus 6A arranges water-resistant type desiccant, and during the air separating adsorbent of Preferential adsorption oxygen, may be used for the production of nitrogen.
Embodiment 3:
On the basis of above-described embodiment, when integrated form pressure-variable adsorption segregation apparatus 6A arranges water-resistant type desiccant, and during the air separating adsorbent of Preferential adsorption nitrogen, may be used for the production of oxygen.
Embodiment 4:
On the basis of above-described embodiment, when integrated form pressure-variable adsorption segregation apparatus 6A is due to the restriction of infield, in the case of highly having strict demand, multiple adsorption tower being arranged in pairs can be designed to, each adsorption tower is by identical specifications design, by programme-control is in parallel, compartment switching regenerates, thus the expansion of unit scale under the conditions of realizing limited limitation in height.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (6)
1. the pressure swing adsorption air segregation apparatus of an integrated adsorption dry function, including the air compressor (1) being sequentially connected with, filter one (2), filter two (4), compressed air surge tank (5) and product gas surge tank (7), it is characterized in that, it is provided with integrated form pressure-variable adsorption segregation apparatus (6A) between described compressed air surge tank (5) and product gas surge tank (7), and integrated form pressure-variable adsorption segregation apparatus (6A) is connected with compressed air surge tank (5) and product gas surge tank (7) simultaneously.
The pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function the most according to claim 1, it is characterized in that, described integrated form pressure-variable adsorption segregation apparatus (6A) is provided with two or more adsorption tower, and adsorption tower is all connected with compressed air surge tank (5) and product gas surge tank (7).
The pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function the most according to claim 2, it is characterised in that be all filled with adsorbent in each adsorption tower in described adsorption tower.
The pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function the most according to claim 3, it is characterized in that, described adsorbent is at least by the adsorbent one for being dried, the adsorbent separated with for air 2 two kinds or above filler composition, adsorbent one is arranged on the air inlet side of adsorption tower, adsorbent one and adsorbent two are presented understructure in adsorption tower and are arranged, and directly connect.
The pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function the most as claimed in any of claims 1 to 4, it is characterized in that, the outlet of described air compressor (1) is connected with the entrance of filter one (2), the outlet of filter one (2) is connected with the entrance of filter two (4), the outlet of filter two (4) connects with the entrance of compressed air surge tank (5), the outlet of surge tank (5) is connected with the entrance of integrated form pressure-variable adsorption segregation apparatus (6A), and the outlet of integrated form pressure-variable adsorption segregation apparatus (6A) is connected with product gas surge tank (7).
The pressure swing adsorption air segregation apparatus of a kind of integrated adsorption dry function the most according to claim 5, it is characterised in that described filter one (2) is filter group, is composed in series by the filter of different filtration grade；Described filter two (4) is mainly made up of the assembly that can remove micro oil steam or filler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620439502.9U CN205598892U (en) | 2016-05-16 | 2016-05-16 | Pressure swing adsorption air separation plant of integrated sorption drying function |
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| CN201620439502.9U CN205598892U (en) | 2016-05-16 | 2016-05-16 | Pressure swing adsorption air separation plant of integrated sorption drying function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893138A (en) * | 2022-05-10 | 2022-08-12 | 佰思迪(天津)科技有限公司 | Pulse type negative pressure adsorption equipment |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893138A (en) * | 2022-05-10 | 2022-08-12 | 佰思迪(天津)科技有限公司 | Pulse type negative pressure adsorption equipment |
| CN114893138B (en) * | 2022-05-10 | 2023-11-17 | 佰思迪(天津)科技有限公司 | Pulse type negative pressure adsorption equipment |
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