CN218501671U - Radial oxygen generation adsorption tower - Google Patents
Radial oxygen generation adsorption tower Download PDFInfo
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- CN218501671U CN218501671U CN202222406517.3U CN202222406517U CN218501671U CN 218501671 U CN218501671 U CN 218501671U CN 202222406517 U CN202222406517 U CN 202222406517U CN 218501671 U CN218501671 U CN 218501671U
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Abstract
The utility model belongs to the technical field of adsorption towers of oxygen generation equipment, and aims to provide a radial oxygen generation adsorption tower, which comprises a cylinder body, wherein the cylinder body is provided with an upper end enclosure and a lower end enclosure; an air bag is arranged inside the upper end enclosure, and a compressed gas inlet is arranged above the air bag; an outer pore plate silk screen, a first molecular sieve, a middle pore plate silk screen, a second molecular sieve and an inner pore plate silk screen are sequentially arranged in the middle of the barrel, an oxygen channel is formed in the middle of the inner pore plate silk screen, the oxygen channel is communicated to the side surface of the lower end enclosure, and an oxygen outlet is formed in the tail end of the oxygen channel; and an air inlet is formed in the bottom of the lower end enclosure. The utility model has the characteristics of simple structure, molecular sieve compress tightly effectual, make oxygen purity high and the gas production is big etc, can extensively be used for PSA oxygen generation equipment adsorption tower technical field, are particularly useful for being greater than the big low pressure adsorption vacuum desorption oxygenerator of 800Nm 3/h's gas production.
Description
Technical Field
The utility model belongs to the technical field of the oxygen generation equipment adsorption tower, concretely relates to radial oxygen generation adsorption tower.
Background
Oxygen is generally obtained by an adsorption cylinder oxygen production device in industry, namely a method for separating nitrogen and oxygen by using air as a raw material and a molecular sieve as an adsorbent and selectively adsorbing the oxygen and the nitrogen by using the molecular sieve by applying a pressure swing adsorption principle is generally called PSA oxygen production. The PSA oxygen production has the characteristics of simple process flow, high automation degree, high gas production speed, low energy consumption and the like, and the product purity can be adjusted in a larger range according to the needs of users, so the PSA oxygen production device is convenient to operate and maintain and has stronger device adaptability.
At present, in a PSA oxygen production device, an adsorption tower is a key device for determining adsorption efficiency, gas production quantity and oxygen production purity. The adsorption tower structure can be divided into an axial adsorption tower and a radial adsorption tower, the axial adsorption tower has simple structure, low manufacturing cost and good operation stability, but the problem of 'boiling' of the molecular sieve in the adsorption tower is easily caused, so that the molecular sieve is frequently replaced; in addition, the axial adsorption tower also has the problem of diameter and height ratio definition, so that the adsorption cylinder is more suitable for small cubic oxygen generation. On the contrary, the radial adsorption tower can adapt to a large-cube oxygen production environment, and the molecular sieve pulverization is slow, so that the energy is saved and the environment is protected. The patent application number '202011508630.1' discloses a pressure swing adsorption oxygen generation radial flow adsorption tower, which comprises an air inlet pipe flange, an oxygen outlet pipe flange, a butterfly-shaped end enclosure, a flow distribution plate, a tank body, a first screen plate, a first internal support member, a second screen plate, a third screen plate, a second internal support member, a first feed inlet, a second feed inlet, an internal end enclosure support member, a first adsorbent and a second adsorbent, wherein the adsorption rate is improved, the pressure swing adsorption oxygen generation operation cycle time is shortened, the system operation energy consumption is reduced, and the production efficiency is improved; however, the top of the structure of the patent lacks a molecular sieve pressing device, so that the molecular sieve has larger side clearance and high pulverization speed, and the whole adsorption efficiency of the adsorption tower is influenced. Also, for example, patent application No. 201310327301.0 discloses a radial oxygen production adsorption tower, which comprises a cylindrical tower body, wherein an air inlet component is arranged at the bottom of the tower body, and an air outlet component is arranged at the top of the tower body, so that the product has the advantages of uniform adsorption, high adsorption efficiency, small floor area, large-scale design and the like; however, the structure of the patent is complex, and the bottom air inlet structure and the top air outlet structure can cause the purity of the oxygen production to be lower, and a top molecular sieve pressing device is lacked, so that the pulverization of the molecular sieve in the adsorption tower is serious. For this reason, the existing radial oxygen production adsorption tower structure is yet to be further improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a radial system oxygen adsorption tower, have simple structure, molecular sieve compress tightly effectual, make oxygen purity high and produce characteristics such as tolerance is big, can extensively be used for PSA oxygen production equipment adsorption tower technical field, be particularly useful for being greater than the big low pressure of 800Nm 3/h's the production of tolerance and adsorb vacuum desorption oxygenerator.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a radial oxygen-making adsorption tower comprises a cylinder body, wherein the cylinder body is provided with an upper seal head and a lower seal head; an air bag is arranged inside the upper end enclosure, and a compressed gas inlet is arranged above the air bag; an outer pore plate silk screen, a first molecular sieve, a middle pore plate silk screen, a second molecular sieve and an inner pore plate silk screen are sequentially arranged in the middle of the barrel, an oxygen channel is formed in the middle of the inner pore plate silk screen, the oxygen channel is communicated to the side surface of the lower end enclosure, and an oxygen outlet is formed in the tail end of the oxygen channel; and an air inlet is formed in the bottom of the lower end enclosure.
As an improvement, the cylinder body is of a conical structure with a small top and a big bottom.
As an improvement, the section of an air inlet channel on the side surface of the cylinder body is gradually reduced from bottom to top, and the air inlet channel is completely closed at the bottom surface of the upper end enclosure.
As a refinement, the gas pockets compact the first molecular sieve and the second molecular sieve.
As an improvement, the opening ratios of the outer orifice plate wire mesh, the intermediate orifice plate wire mesh and the inner orifice plate wire mesh are sequentially decreased.
As a refinement, the first molecular sieve is a 13X molecular sieve and the second molecular sieve is a lithium-type molecular sieve.
As an improvement, the first molecular sieve has a smaller packing thickness than the second molecular sieve.
As an improvement, the filling thickness of the first molecular sieve is 2/10 to 4/10 of the filling thickness of the second molecular sieve.
As an improvement, the included angle between the oxygen outlet and the horizontal direction is 30-60 degrees.
As an improvement, the cylinder is made of high-strength carbon steel or stainless steel, and the wall thickness is 5-10mm.
The utility model discloses the beneficial effect who gains does: the radial oxygen generation adsorption tower has the characteristics of simple structure, good molecular sieve compaction effect, high oxygen generation purity, large gas production rate and the like; the top pressing device is simplified by arranging the air bag pressing structure at the top of the cylinder body, and meanwhile, the first molecular sieve and the second molecular sieve in the cylinder body can be well pressed to prevent pulverization under the impact of air flow; by adopting radial flow and arranging two layers of molecular sieves in the cylinder, water can be further removed, high-purity oxygen can be obtained, and by adopting the pore plate silk screen with the sequentially reduced aperture ratio, the gas adsorption efficiency is improved, and the gas yield is improved; finally, the cylinder body is made of high-strength carbon steel or stainless steel, so that the cylinder body of the adsorption tower is ensured to have higher strength and high-pressure sealing performance, and the service life of the adsorption tower is prolonged.
Drawings
FIG. 1 is a schematic structural view of the radial oxygen-generating adsorption tower of the present invention.
In the figure: 1. the device comprises a cylinder body, 2 parts of an upper end enclosure, 3 parts of a lower end enclosure, 4 parts of an air bag, 5 parts of a compressed gas inlet, 6 parts of an outer side pore plate wire mesh, 7 parts of a first molecular sieve, 8 parts of a middle pore plate wire mesh, 9 parts of a second molecular sieve, 10 parts of an inner pore plate wire mesh, 11 parts of an oxygen channel, 12 parts of an oxygen outlet, 13 parts of an air inlet.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the radial oxygen generation adsorption tower of the embodiment includes a cylinder 1, wherein the cylinder 1 is provided with an upper seal head 2 and a lower seal head 3; an air bag 4 is arranged inside the upper end enclosure 2, and a compressed gas inlet 5 is arranged above the air bag 4; an outer pore plate silk screen 6, a first molecular sieve 7, a middle pore plate silk screen 8, a second molecular sieve 9 and an inner pore plate silk screen 10 are sequentially arranged in the middle of the cylinder body 1, an oxygen channel 11 is formed in the middle of the inner pore plate silk screen 10, the oxygen channel 11 is communicated to the side surface of the lower end enclosure 3, and an oxygen outlet 12 is formed in the tail end of the oxygen channel 11; and an air inlet 13 is formed in the bottom of the lower end enclosure 3.
Further, the cylinder body 1 is of a conical structure with a small upper part and a large lower part; specifically, the section of an air inlet channel on the side surface of the cylinder body 1 is gradually reduced from bottom to top, and the bottom surface of the upper end enclosure 2 is completely sealed, so that air is prevented from entering the upper end enclosure and affecting the compression effect of the air bag 4.
Further, the gas pockets 4 compact the first molecular sieve 7 and the second molecular sieve 9; specifically, the first molecular sieve 7 and the second molecular sieve 9 are compressed under the pressure of the gas inside the airbag 4 by introducing the compressed gas inside the airbag 4 and then sealing the compressed gas inlet 5.
Further, the aperture ratios of the outer side orifice plate wire mesh 6, the middle orifice plate wire mesh 8 and the inner orifice plate wire mesh 10 are sequentially reduced, so that the requirement that the air inflow is gradually reduced is met.
Further, the first molecular sieve 7 is a 13X molecular sieve, and the second molecular sieve 9 is a lithium type molecular sieve; further, the filling thickness of the first molecular sieve 7 is smaller than that of the second molecular sieve 9, specifically, the filling thickness of the first molecular sieve 7 is 2/10 to 4/10, preferably 3/10 of the filling thickness of the second molecular sieve 9.
Furthermore, the included angle between the oxygen outlet 12 and the horizontal direction is 30-60 degrees, preferably 35-45 degrees, so that the oxygen outlet is ensured to be smoother, and the influence on the air entering the cylinder is reduced.
Furthermore, the cylinder body 1 is made of high-strength carbon steel or stainless steel, and the wall thickness is 5-10mm, preferably 7mm, so that the cylinder body is ensured to have good sealing performance and high strength, and the service life is prolonged.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. A radial oxygen production adsorption tower comprises a cylinder body (1), wherein the cylinder body (1) is provided with an upper end enclosure (2) and a lower end enclosure (3); an air bag (4) is arranged in the upper end enclosure (2), and a compressed gas inlet (5) is arranged above the air bag (4); an outer pore plate silk screen (6), a first molecular sieve (7), a middle pore plate silk screen (8), a second molecular sieve (9) and an inner pore plate silk screen (10) are sequentially arranged in the middle of the barrel (1), an oxygen channel (11) is formed in the middle of the inner pore plate silk screen (10), the oxygen channel (11) is communicated to the side surface of the lower end enclosure (3), and an oxygen outlet (12) is formed in the tail end of the oxygen channel; and an air inlet (13) is formed in the bottom of the lower end enclosure (3).
2. The radial oxygen production adsorption column according to claim 1, wherein the cylinder (1) has a tapered structure with a small top and a large bottom.
3. The radial oxygen production adsorption tower according to claim 2, wherein the cross section of the air inlet channel on the side of the cylinder (1) is gradually reduced from bottom to top and is completely closed at the bottom surface of the upper head (2).
4. The radial oxygen generation adsorption column according to claim 1, wherein the gas bladder (4) compresses the first molecular sieve (7) and the second molecular sieve (9).
5. The radial oxygen generation adsorption tower of claim 1, wherein the open porosity of the outer orifice screen (6), the middle orifice screen (8), and the inner orifice screen (10) decreases sequentially.
6. The radial oxygen generation adsorption column according to claim 1, wherein the first molecular sieve (7) is a 13X molecular sieve and the second molecular sieve (9) is a lithium type molecular sieve.
7. The radial oxygen adsorption column of claim 6, wherein the first molecular sieve (7) has a packing thickness that is smaller than a packing thickness of the second molecular sieve (9).
8. The radial oxygen production adsorption tower of claim 7, wherein the first molecular sieve (7) has a packing thickness of 2/10 to 4/10 of the packing thickness of the second molecular sieve (9).
9. The radial oxygen generation adsorption tower of claim 1, wherein the oxygen outlet (12) is angled from 30 ° to 60 ° from horizontal.
10. The radial oxygen production adsorption tower of claim 1, 2 or 3, wherein the cylinder (1) is made of high-strength carbon steel or stainless steel, and the wall thickness is 5-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222406517.3U CN218501671U (en) | 2022-09-12 | 2022-09-12 | Radial oxygen generation adsorption tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222406517.3U CN218501671U (en) | 2022-09-12 | 2022-09-12 | Radial oxygen generation adsorption tower |
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| CN218501671U true CN218501671U (en) | 2023-02-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117463116A (en) * | 2023-11-01 | 2024-01-30 | 杭州普菲科空分设备有限公司 | Molecular sieve closing device in oxygenerator |
| CN117504530A (en) * | 2023-11-14 | 2024-02-06 | 苏州杜尔制氧设备有限公司 | High-efficiency oxygen production equipment and process suitable for calcium molecular sieve |
-
2022
- 2022-09-12 CN CN202222406517.3U patent/CN218501671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117463116A (en) * | 2023-11-01 | 2024-01-30 | 杭州普菲科空分设备有限公司 | Molecular sieve closing device in oxygenerator |
| CN117504530A (en) * | 2023-11-14 | 2024-02-06 | 苏州杜尔制氧设备有限公司 | High-efficiency oxygen production equipment and process suitable for calcium molecular sieve |
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