CN114345081A - Pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA - Google Patents
Pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA Download PDFInfo
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- CN114345081A CN114345081A CN202011087900.6A CN202011087900A CN114345081A CN 114345081 A CN114345081 A CN 114345081A CN 202011087900 A CN202011087900 A CN 202011087900A CN 114345081 A CN114345081 A CN 114345081A
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- sleeved
- air
- wall
- oxygen
- buffer tank
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000001301 oxygen Substances 0.000 title claims abstract description 51
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 51
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 25
- 239000000872 buffer Substances 0.000 claims abstract description 46
- 238000005192 partition Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention discloses a pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA (pressure swing adsorption), which comprises an air compressor, an air buffer tank connected to the air outlet end of the air compressor through a connecting pipe, a freeze dryer communicated with the air buffer tank through the connecting pipe, a filter group sleeved on the inner wall of one side of the freeze dryer, an oxygen generation host sleeved at one end of the filter group and an oxygen buffer tank sleeved at the air outlet end of the oxygen generation host, wherein sliding grooves are formed in the inner walls of two sides of the air buffer tank, sliding blocks are arranged in the sliding grooves in a sliding manner, mounting pipes are welded on the outer walls of the two sliding blocks on the opposite sides, filter elements are sleeved on the inner walls of the bottom ends of the mounting pipes, and partition plates are welded on the outer walls of the top ends of the mounting pipes. The spring of the invention buffers the impact force on the filter element, can prevent the filter element from being broken or damaged, prolongs the service life of the filter element, can buffer and simultaneously lead the compressed air to smoothly enter the air outlet pipe, and improves the working efficiency.
Description
Technical Field
The invention relates to the technical field of pressure swing adsorption oxygen generation, in particular to a pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA.
Background
Pressure swing adsorption, PSA for short, is a novel gas adsorption separation technology, which has the following advantages: the product purity is high; the method can generally work at room temperature and low pressure, the bed layer does not need to be heated during regeneration, and the product purity is high; the equipment is simple, and the operation and the maintenance are simple and convenient; continuous cycle operation, which can be fully automated, has therefore received attention from all the countries' industries when this new technology has emerged, and has been rapidly developed and matured, it is known as pressure swing adsorption, which is a method of adsorption under pressure with reduced pressure (vacuum) or atmospheric desorption, if the temperature is not changed, and it is seen that pressure swing adsorption is adsorption and desorption by changing the pressure.
Among the oxygen technology of current pressure swing adsorption, can use air compressor to carry into in the air buffer tank after with air compression and filter, because the air can lead to the air pressure grow after being compressed, can lead to the fact the impact to the filter core after carrying into the air buffer tank, lead to the filter core to be broken or impaired easily.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA comprises an air compressor, an air buffer tank connected with the air outlet end of the air compressor through a connecting pipe, a freeze dryer communicated with the air buffer tank through a connecting pipe, a filter group sleeved on the inner wall of one side of the freeze dryer, an oxygen generation host sleeved at one end of the filter group and an oxygen buffer tank sleeved at the air outlet end of the oxygen generation host, wherein chutes with T-shaped structures are respectively formed on the inner walls of two sides of the air buffer tank, slide blocks with T-shaped structures are slidably mounted in the chutes, mounting pipes are welded on the outer walls of two opposite sides of the slide blocks, filter elements are sleeved on the inner walls of the bottom ends of the mounting pipes, partition plates are welded on the outer walls of the top ends of the mounting pipes, air outlet holes distributed equidistantly are formed in the outer walls of the top of the partition plates, buffering mechanisms are sleeved in the air outlet holes and comprise connecting pipes, the connecting pipe cup joints in the outlet opening at baffle top, and has cup jointed the sliding ring on the outer wall of connecting pipe top, slidable mounting has the sleeve pipe on the sliding ring outer wall, and has cup jointed the spacing ring on the sleeve pipe bottom inner wall, cup jointed on the sleeve pipe upper portion inner wall and kept off the ring, the cover is equipped with the spring on the outer wall that the connecting pipe is located the spacing ring below, the air buffer tank has cup jointed the fixed plate on being located baffle top volume inner wall, open on the outer wall of fixed plate bottom have with the mounting hole of buffer gear position looks adaptation, and the sleeve pipe cup joints in the mounting hole.
Preferably, the oxygen generation host comprises two separation towers, and the two separation towers are connected with each other through a connecting pipe.
Preferably, the outer wall of one side of the bottom of the air buffer tank is provided with an air inlet, and the inner wall of the air inlet is sleeved with an air inlet pipe.
Preferably, the inner diameter of the limiting ring is matched with the outer diameter of the connecting pipe, and the connecting pipe is slidably mounted in the limiting ring.
Preferably, the inner diameter of the baffle ring is larger than that of the slip ring.
Preferably, an air outlet is formed in the outer wall of one side of the top end of the air buffer tank, and an air outlet pipe is sleeved on the inner wall of the air outlet.
The invention has the beneficial effects that:
1. the air compressor conveys compressed air into the air buffer tank, the slide blocks are arranged on the inner walls of the two sides of the air buffer tank, the compressed air impacts the filter element, at the moment, the filter element and the mounting pipe move upwards along the inner wall of the air buffer tank to drive the connecting pipe to move, the spring is extruded in the moving process, the spring buffers impact force on the filter element, the filter element can be prevented from being washed away or damaged, and the service life of the filter element is prolonged;
2. during compressed air got into the air buffer tank, because connecting pipe, fender ring and sleeve pipe all are both ends open-ended pipeline, consequently compressed air filters the back at the filter core and enters into the cover intraductally through the connecting pipe in the installation, and the reentrant enters into the outlet pipe and carries out operation on next step in getting into the freeze-dryer, and in compressed air can be smooth entering into the outlet pipe, improved work efficiency.
Drawings
FIG. 1 is a schematic diagram of a pressure swing adsorption oxygen generation plant for producing high purity oxygen using two-stage PSA in accordance with the present invention;
FIG. 2 is a schematic cross-sectional view of an air buffer tank of a pressure swing adsorption oxygen generation apparatus for producing high purity oxygen using two-stage PSA;
FIG. 3 is a schematic cross-sectional view of a buffering mechanism of a pressure swing adsorption oxygen generator for producing high purity oxygen by using two-stage PSA.
In the figure: 1 air compressor, 2 air buffer tanks, 3 freeze dryers, 4 filter banks, 5 system oxygen host computers, 6 oxygen buffer tanks, 7 intake pipes, 8 sliders, 9 installation pipes, 10 filter elements, 11 clapboards, 12 connecting pipes, 13 slip rings, 14 sleeves, 15 spacing rings, 16 retaining rings, 17 springs, 18 fixed plates, 19 outlet pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a pressure swing adsorption oxygen generating device for producing high purity oxygen by using two-stage PSA, comprising an air compressor 1, an air buffer tank 2 connected to the air outlet end of the air compressor 1 through a connecting pipe, a freeze dryer 3 communicated with the air buffer tank 2 through a connecting pipe, a filter set 4 sleeved on the inner wall of one side of the freeze dryer 3, an oxygen generating main machine 5 sleeved on one end of the filter set 4, and an oxygen buffer tank 6 sleeved on the air outlet end of the oxygen generating main machine 5, wherein the oxygen generating main machine 5 comprises two separation towers which are connected with each other through a connecting pipe, an air inlet is opened on the outer wall of one side of the bottom of the air buffer tank 2, an air inlet pipe 7 is sleeved on the inner wall of the air inlet, chutes of a "T" shaped structure are opened on the inner walls of both sides of the air buffer tank 2, and a slider 8 of a "T" shaped structure is slidably installed in the chutes, the outer wall of one side, opposite to the two sliding blocks 8, is welded with a mounting pipe 9, the inner wall of the bottom end of the mounting pipe 9 is sleeved with a filter element 10, the outer wall of the top end of the mounting pipe 9 is welded with a partition plate 11, the outer wall of the top end of the partition plate 11 is provided with air outlet holes distributed at equal intervals, a buffer mechanism is sleeved in the air outlet holes and comprises a connecting pipe 12, the connecting pipe 12 is sleeved in the air outlet holes of the top end of the partition plate 11, the outer wall of the top end of the connecting pipe 12 is sleeved with a sliding ring 13, the outer wall of the sliding ring 13 is slidably provided with a sleeve 14, the inner wall of the bottom end of the sleeve 14 is sleeved with a limit ring 15, the inner diameter of the limit ring 15 is matched with the outer diameter of the connecting pipe 12, the connecting pipe 12 is slidably mounted in the limit ring 15, the inner wall of the upper part of the sleeve 14 is sleeved with a baffle ring 16, the inner diameter of the baffle ring 16 is larger than the inner diameter of the sliding ring 13, the outer wall of the connecting pipe 12 below the limit ring 15 is sleeved with a spring 17, air buffer tank 2 is located and has cup jointed fixed plate 18 on 11 top volume inner walls of baffle, it has the mounting hole with buffer gear position looks adaptations to open on the outer wall of fixed plate 18 bottom, and sleeve pipe 14 cup joints in the mounting hole, can prevent that filter core 10 from being washed out or impaired, has improved the life of filter core 10, and compressed air has improved work efficiency in can smooth entering into outlet duct 19 simultaneously, it has the gas outlet to open on 2 top one side outer walls of air buffer tank, and has cup jointed outlet duct 19 on the gas outlet inner wall.
The working principle is as follows: during air compressor 1 carried the air after compressing into air buffer tank 2, be equipped with slider 8 on the 2 both sides inner walls of air buffer tank, compressed air led to the fact the impact to filter core 10, filter core 10 and installation pipe 9 can be along 2 inner walls of air buffer tank rebound this moment, and then drive connecting pipe 12 and remove, can extrude spring 17 at the removal in-process, spring 17 cushions the impact force that filter core 10 received, prevent that filter core 10 from being washed out or impaired.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA comprises an air compressor (1), an air buffer tank (2) connected with an air outlet end of the air compressor (1) through a connecting pipe, a freeze dryer (3) communicated with the air buffer tank (2) through a connecting pipe, a filter group (4) sleeved on the inner wall of one side of the freeze dryer (3), an oxygen generation host (5) sleeved at one end of the filter group (4) and an oxygen buffer tank (6) sleeved at an air outlet end of the oxygen generation host (5), and is characterized in that sliding grooves of T-shaped structures are respectively formed on the inner walls of two sides of the air buffer tank (2), sliding blocks (8) of the T-shaped structures are slidably mounted in the sliding grooves, mounting pipes (9) are welded on the outer wall of one side opposite to the sliding blocks (8), and filter elements (10) are sleeved on the inner wall of the bottom end of the mounting pipes (9), the mounting structure is characterized in that a partition plate (11) is welded on the outer wall of the top end of the mounting pipe (9), air outlets distributed at equal intervals are formed in the outer wall of the top of the partition plate (11), a buffer mechanism is sleeved in the air outlets, the buffer mechanism comprises a connecting pipe (12), the connecting pipe (12) is sleeved in the air outlets at the top of the partition plate (11), a sliding ring (13) is sleeved on the outer wall of the top end of the connecting pipe (12), a sleeve (14) is slidably mounted on the outer wall of the sliding ring (13), a limiting ring (15) is sleeved on the inner wall of the bottom end of the sleeve (14), a baffle ring (16) is sleeved on the inner wall of the upper portion of the sleeve (14), a spring (17) is sleeved on the outer wall of the connecting pipe (12) below the limiting ring (15), a fixing plate (18) is sleeved on the inner wall of the air buffer tank (2) above the partition plate (11), and a mounting hole matched with the position of the buffer mechanism is formed in the outer wall of the bottom of the fixing plate (18), and the sleeve (14) is sleeved in the mounting hole.
2. The pressure swing adsorption oxygen plant for producing high purity oxygen using two-stage PSA according to claim 1, wherein the oxygen generation main unit (5) comprises two separation columns, and the two separation columns are connected to each other by a connection pipe.
3. The pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA according to claim 1, wherein the air buffer tank (2) is provided with an air inlet on the outer wall of one side of the bottom, and the air inlet is sleeved on the air inlet pipe (7) on the inner wall.
4. The pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA according to claim 1, wherein the inner diameter of the limiting ring (15) is matched with the outer diameter of the connecting pipe (12), and the connecting pipe (12) is slidably mounted in the limiting ring (15).
5. The pressure swing adsorption oxygen plant for producing high purity oxygen using two-stage PSA as claimed in claim 1, wherein the baffle ring (16) has a larger inner diameter than the slip ring (13).
6. The pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA according to claim 1, wherein the outer wall of one side of the top end of the air buffer tank (2) is provided with an air outlet, and the inner wall of the air outlet is sleeved with an air outlet pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011087900.6A CN114345081A (en) | 2020-10-13 | 2020-10-13 | Pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011087900.6A CN114345081A (en) | 2020-10-13 | 2020-10-13 | Pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA |
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| Publication Number | Publication Date |
|---|---|
| CN114345081A true CN114345081A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011087900.6A Pending CN114345081A (en) | 2020-10-13 | 2020-10-13 | Pressure swing adsorption oxygen generation device for producing high-purity oxygen by using two-stage PSA |
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| Country | Link |
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| CN (1) | CN114345081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095991A (en) * | 2022-05-10 | 2022-09-23 | 王嘉豪 | Pressure adjusting device of nitrogen heater |
-
2020
- 2020-10-13 CN CN202011087900.6A patent/CN114345081A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095991A (en) * | 2022-05-10 | 2022-09-23 | 王嘉豪 | Pressure adjusting device of nitrogen heater |
| CN115095991B (en) * | 2022-05-10 | 2023-08-18 | 王嘉豪 | Nitrogen heater pressure regulating device |
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Application publication date: 20220415 |