CN217662418U - Back-blowing regeneration device of efficient molecular sieve oxygen generator - Google Patents
Back-blowing regeneration device of efficient molecular sieve oxygen generator Download PDFInfo
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- CN217662418U CN217662418U CN202221628177.2U CN202221628177U CN217662418U CN 217662418 U CN217662418 U CN 217662418U CN 202221628177 U CN202221628177 U CN 202221628177U CN 217662418 U CN217662418 U CN 217662418U
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Abstract
The utility model discloses a back-blowing regeneration device of a high-efficiency molecular sieve oxygen generator, which comprises an air buffer tank, wherein the air buffer tank is connected with a pressure swing adsorption oxygen generation device, the pressure swing adsorption oxygen generation device is connected with an oxygen buffer tank, and the oxygen buffer tank is connected with a flow detection and emptying system; the front end of the air buffer tank is provided with a clean compressed air inlet, the rear end of the air buffer tank is connected with a PLC control system, and the PLC control system is connected with an electromagnetic valve group; the pressure swing adsorption oxygen generation equipment comprises an adsorption tower A and an adsorption tower B which are arranged side by side; the flow detection and emptying system sequentially comprises a filter, an oxygen purity detector and a flow detector, and a finished gas outlet is formed in the tail end of the flow detection and emptying system; the front end of the finished product air outlet is also connected with a back flushing regeneration pipeline, and the back flushing regeneration pipeline is connected to the upper pressure equalizing pipeline, so that a back flushing regeneration function is realized, the demand of clean compressed air in the adsorption tower is reduced, and the purposes of energy conservation and environmental protection are achieved.
Description
Technical Field
The utility model belongs to the technical field of pressure swing adsorption oxygenerator, concretely relates to high-efficient molecular sieve oxygenerator blowback regenerating unit.
Background
The molecular sieve oxygen generator is a common industrial oxygen generator for separating nitrogen from oxygen by a molecular sieve adsorption principle, and has the working principle that raw material air is pressurized by a compressor, solid impurities such as oil, dust and the like and water are removed by an air pretreatment device, then the raw material air enters an adsorption tower provided with the molecular sieve, and nitrogen, carbon dioxide and the like in the air are adsorbed, so that high-purity oxygen is obtained. At present, molecular sieve oxygen production is the only established, universal process with international and national standards.
In the oxygen generation process flow of the existing oxygen generator, the adsorption double towers need to consume a part of dry and clean compressed air in the uniform process to take away the water adsorbed by the adsorbent, the consumed compressed air can be discharged through the lower silencer, and the consumed air source invisibly increases the energy consumption cost of the oxygen generator. The back-blowing regeneration device is researched and developed, unqualified oxygen in the oxygen buffer tank is back-blown into the adsorption tower, so that the consumption of compressed air of the adsorption dryer can be effectively reduced, and the aims of energy conservation and consumption reduction are fulfilled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a high-efficient molecular sieve oxygenerator blowback regenerating unit, have simple structure, blowback regeneration is effectual, degree of automation is high and characteristics such as energy-concerving and environment-protective, can extensively be used for pressure swing adsorption oxygenerator technical field.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a back-blowing regeneration device of a high-efficiency molecular sieve oxygen generator comprises an air buffer tank, wherein the air buffer tank is connected with pressure swing adsorption oxygen generation equipment, the pressure swing adsorption oxygen generation equipment is connected with an oxygen buffer tank, and the oxygen buffer tank is connected with a flow detection and emptying system; the front end of the air buffer tank is provided with a clean compressed air inlet, the rear end of the air buffer tank is connected with a PLC control system, and the PLC control system is connected with an electromagnetic valve group; the pressure swing adsorption oxygen generation equipment comprises an adsorption tower A and an adsorption tower B which are arranged side by side, an upper pressure equalizing pipeline and a lower pressure equalizing pipeline are connected between the adsorption tower A and the adsorption tower B, and a plurality of electric valves are arranged on the upper pressure equalizing pipeline and the lower pressure equalizing pipeline; the flow detection and emptying system sequentially comprises a filter, an oxygen purity detector and a flow detector, and a finished gas outlet is formed in the tail end of the flow detection and emptying system; the front end of the finished product air outlet is also connected with a back flushing regeneration pipeline, and the back flushing regeneration pipeline is connected to the upper pressure equalizing pipeline, so that a back flushing regeneration function is realized, the demand of clean compressed air in the adsorption tower is reduced, and the purposes of energy conservation and environmental protection are achieved.
As an improvement, the adsorption tower A and the adsorption tower B are tank bodies with equal volume, and a self-operated molecular sieve pressing device is arranged on each tank body.
As an improvement, the electric valves are all connected with the electromagnetic valve group, and the opening and closing of the electromagnetic valves are controlled by the PLC control system, so that automatic uniform and back-blowing regeneration work is completed.
As an improvement, the tail end of the lower pressure equalizing pipeline is connected with a silencer.
As an improvement, a one-way check valve and a pneumatic control valve are arranged on the back-blowing regeneration pipeline.
As an improvement, safety valves are arranged at the top parts of the air buffer tank and the oxygen buffer tank, and automatic sewage draining outlets are arranged at the bottom parts of the air buffer tank and the oxygen buffer tank.
As an improvement, the oxygen buffer tank is made of high-strength carbon steel, and a wear-resistant ceramic chip is embedded on the inner surface of the oxygen buffer tank.
The utility model discloses the beneficial effect who gains does: the back-blowing regeneration device of the high-efficiency molecular sieve oxygenerator has the characteristics of simple structure, good back-blowing regeneration effect, high automation degree, energy conservation, environmental protection and the like; the back end of the oxygen buffer tank is provided with the back flushing regeneration pipeline, and a venting outlet is omitted, so that when the purity of the generated oxygen is unqualified, the generated oxygen can be directly used as regenerated gas to be blown into the adsorption tower to replace clean compressed air, the effects of energy saving and environmental protection are achieved, and the blown oxygen has lower water content and better effect compared with the clean compressed air; the silencer is arranged at the tail end of the lower pressure equalizing pipeline of the adsorption tower, so that the noise generated when tail gas is discharged by equipment can be reduced, and the working environment of a workshop is improved; in addition, the oxygen buffer tank adopts high-strength carbon steel material, and has inlayed the wear-resisting potsherd at the inner surface, has solved the oxygen buffer tank internal surface need not be perishable rusty problem for a long time, and the clearance of the internal attached debris of jar of also being more convenient for of wearing plate simultaneously.
Drawings
Fig. 1 is a schematic diagram of the work flow of the back-blowing regeneration device of the high-efficiency molecular sieve oxygenator of the present invention.
In the figure: 1. air buffer tank, 2, pressure swing adsorption oxygenerator, 3, oxygen buffer tank, 4, clean compressed air entry, 5, PLC control system, 6, electromagnetism valves, 7, adsorption tower A,8, adsorption tower B,9, go up the pressure-equalizing pipeline, 10, lower pressure-equalizing pipeline, 11, motorised valve, 12, filter, 13, oxygen purity detector, 14, flow detector, 15, the export of finished product gas, 16, blowback regeneration pipeline, 17, the muffler, 18, the relief valve, 19, automatic drain.
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 back-blowing regeneration device of the high-efficiency molecular sieve oxygen generator of this embodiment includes an air buffer tank 1, the air buffer tank 1 is connected to a pressure swing adsorption oxygen generation device 2, the pressure swing adsorption oxygen generation device 2 is connected to an oxygen buffer tank 3, and the oxygen buffer tank 3 is connected to a flow detection and evacuation system; the front end of the air buffer tank 1 is provided with a clean compressed air inlet 4, the rear end of the air buffer tank is connected with a PLC control system 5, and the PLC control system 5 is connected with an electromagnetic valve group 6; the pressure swing adsorption oxygen generation equipment 2 comprises an adsorption tower A7 and an adsorption tower B8 which are arranged side by side, an upper pressure equalizing pipeline 9 and a lower pressure equalizing pipeline 10 are connected between the adsorption tower A7 and the adsorption tower B8, and a plurality of electric valves 11 are arranged on the upper pressure equalizing pipeline 9 and the lower pressure equalizing pipeline 10; the flow detection and emptying system sequentially comprises a filter 12, an oxygen purity detector 13 and a flow detector 14, and a finished gas outlet 15 is arranged at the tail end of the flow detection and emptying system; a back-flushing regeneration pipeline 16 is further connected to the front end of the finished product air outlet 15, the back-flushing regeneration pipeline 16 is connected to the upper pressure equalizing pipeline 9, and a one-way check valve and a pneumatic control valve are arranged on the back-flushing regeneration pipeline 16, so that a back-flushing regeneration function is realized, the demand of clean compressed air in the adsorption tower is reduced, and the purposes of energy conservation and environmental protection are achieved.
Further, the adsorption tower A7 and the adsorption tower B8 are tank bodies with equal volume, and a self-operated molecular sieve pressing device is arranged on the tank bodies; specifically, the adsorption tower A7 and the adsorption tower B8 are provided with pressure gauges, and the side surfaces of the adsorption tower A7 and the adsorption tower B8 are provided with molecular sieve visual windows, so that the molecular sieve pulverization condition can be conveniently watched, and the molecular sieves in the adsorption tower can be replaced in time.
Furthermore, the electric valves 11 are all connected with the electromagnetic valve group 6, and the PLC control system 5 is used for controlling the opening and closing of the electric valves to complete automatic uniform and back flushing regeneration work, so that the automatic operation efficiency of the device is improved.
Furthermore, the tail end of the lower pressure equalizing pipeline 10 is connected with a silencer 17, so that noise generated when tail gas is discharged by equipment is reduced, and the working environment of a workshop is improved.
Further, safety valves 18 are arranged at the tops of the air buffer tank 1 and the oxygen buffer tank 3, and automatic sewage outlets 19 are arranged at the bottoms of the air buffer tank and the oxygen buffer tank; specifically, the safety valve 18 automatically opens for pressure relief when the air pressure in the tank body exceeds the rated pressure, and the automatic sewage draining outlet 19 is controlled to open and close through an automatic butterfly valve, so that sewage draining is performed on the tank body at regular intervals.
Further, oxygen buffer tank 3 adopts the carbon steel material of excelling in, and inlay at the inner surface has wear-resisting potsherd, and is concrete, wear-resisting potsherd is one of alumina ceramics or carborundum pottery to solved oxygen buffer tank internal surface need not be perishable rusty problem for a long time, wear-resisting potsherd surface is smooth simultaneously, the clearance of the internal portion attached debris of jar of also being more convenient for.
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 (7)
1. The back-blowing regeneration device of the efficient molecular sieve oxygen generator is characterized by comprising an air buffer tank (1), wherein the air buffer tank (1) is connected with a pressure swing adsorption oxygen generation device (2), the pressure swing adsorption oxygen generation device (2) is connected with an oxygen buffer tank (3), and the oxygen buffer tank (3) is connected with a flow detection and emptying system; the front end of the air buffer tank (1) is provided with a clean compressed air inlet (4), the rear end of the air buffer tank is connected with a PLC control system (5), and the PLC control system (5) is connected with an electromagnetic valve group (6); the pressure swing adsorption oxygen generation equipment (2) comprises an adsorption tower A (7) and an adsorption tower B (8) which are arranged side by side, an upper pressure equalizing pipeline (9) and a lower pressure equalizing pipeline (10) are connected between the adsorption tower A (7) and the adsorption tower B (8), and a plurality of electric valves (11) are arranged on the upper pressure equalizing pipeline (9) and the lower pressure equalizing pipeline (10); the flow detection and emptying system sequentially comprises a filter (12), an oxygen purity detector (13) and a flow detector (14), and a finished gas outlet (15) is arranged at the tail end of the flow detection and emptying system; the front end of the finished gas outlet (15) is also connected with a back flushing regeneration pipeline (16), and the back flushing regeneration pipeline (16) is connected to the upper pressure equalizing pipeline (9).
2. The back-blowing regeneration device of the efficient molecular sieve oxygen generator according to claim 1, wherein the adsorption tower A (7) and the adsorption tower B (8) are tanks with equal volume, and a self-operated molecular sieve compacting device is arranged on the tanks.
3. The back-blowing regeneration device of the high-efficiency molecular sieve oxygenator as claimed in claim 1, wherein the electrically operated valves (11) are connected to the electrically operated valve set (6).
4. The back-blowing regeneration device of the high-efficiency molecular sieve oxygen generator according to claim 1, characterized in that a silencer (17) is connected to the end of the lower pressure equalizing pipeline (10).
5. The back-flushing regeneration device of the high-efficiency molecular sieve oxygen generator according to claim 1, wherein the back-flushing regeneration pipeline (16) is provided with a one-way check valve and a pneumatic control valve.
6. The back-blowing regeneration device of the efficient molecular sieve oxygenator according to claim 1, wherein the air buffer tank (1) and the oxygen buffer tank (3) are provided with safety valves (18) at the top and automatic sewage outlets (19) at the bottom.
7. The back-blowing regeneration device of the efficient molecular sieve oxygen generator of claim 6, wherein the oxygen buffer tank (3) is made of high-strength carbon steel and is embedded with wear-resistant ceramic plates on the inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221628177.2U CN217662418U (en) | 2022-06-28 | 2022-06-28 | Back-blowing regeneration device of efficient molecular sieve oxygen generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221628177.2U CN217662418U (en) | 2022-06-28 | 2022-06-28 | Back-blowing regeneration device of efficient molecular sieve oxygen generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116920565A (en) * | 2023-09-18 | 2023-10-24 | 上海联风气体有限公司 | Dirty argon separation system and method capable of reducing cryogenic dirty argon discharge |
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2022
- 2022-06-28 CN CN202221628177.2U patent/CN217662418U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116920565A (en) * | 2023-09-18 | 2023-10-24 | 上海联风气体有限公司 | Dirty argon separation system and method capable of reducing cryogenic dirty argon discharge |
| CN116920565B (en) * | 2023-09-18 | 2023-12-22 | 上海联风气体有限公司 | Dirty argon separation system and method capable of reducing cryogenic dirty argon discharge |
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