CN202823117U - Recycling adsorption type dryer of regenerated gas - Google Patents
Recycling adsorption type dryer of regenerated gas Download PDFInfo
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- CN202823117U CN202823117U CN 201220420723 CN201220420723U CN202823117U CN 202823117 U CN202823117 U CN 202823117U CN 201220420723 CN201220420723 CN 201220420723 CN 201220420723 U CN201220420723 U CN 201220420723U CN 202823117 U CN202823117 U CN 202823117U
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Abstract
The utility model discloses a recycling adsorption type dryer of regenerated gas, and belongs to the technical field of recycle of gas. A dry air outlet main pipe is connected with an electric heater through a dry air outlet branch pipe, and is then communicated with a pipe between a third one-way valve and a fourth one-way valve. One pipeline between a first pneumatic cut-off valve and a second pneumatic cut-off valve is connected with a sixth pneumatic cut-off valve, a pneumatic booster pump, a capsule-type air flow stabilizing tank, a seventh pneumatic cut-off valve and an efficient dehumidifying device in sequence. The efficient dehumidifying device is communicated with a wet air inlet main pipe. The recycling adsorption type dryer of the regenerated gas is capable of reasonably using and recycling energy carried by the regenerated gas, and guaranteeing thorough regeneration of an adsorption agent so as to obtain dry compressed air with high quality.
Description
Technical field
The utility model belongs to the Gas recovery technical field, is specifically related to regeneration gas and reclaims absorption drier.
Background technology
In modern enterprise, compressed-air actuated use is more and more general, and common drying device mainly contains two kinds of absorption drier and freezing type driers.Adsorption compressed air dryer is low because having finished product gas dew point, the stable advantage that freezing type drier did not have such as grade of air feed, therefore introduce domestic from the seventies and eighties in last century, and the technological assimilation of domestic each manufacturer of process, absorption and development, present adsorption type compressed air drier occupies irreplaceable status in the air drying device of compressor field.
Yet no matter be that micro-heat regeneration absorbent drying machine or heatless regeneration absorption drier purge regeneration because its regeneration need utilize finished product gas to the adsorbent of regenerator, therefore it is large to have air consumption, the shortcomings such as effective air demand is little, the simultaneously consumption of regeneration gas also is the maximum place of absorption drier power consumption.If take an operating pressure as 0.8MPa, treating capacity is 100Nm
3The heatless regeneration absorption drier of/min is example, and required regeneration tolerance is that 12% for the treatment of capacity is 12Nm
3/ min, amounting to into the electric energy that air compressor machine consumes is 70KW/h.Therefore rationally utilize and the entrained energy of reclaiming gas can guarantee that again adsorbent thoroughly regenerates, the compressed air that obtains high-quality drying becomes a difficult problem.
The utility model content
For the problem that prior art exists, the purpose of this utility model is to design the technical scheme that provides regeneration gas to reclaim absorption drier.This device can rationally utilize and the entrained energy of reclaiming gas can guarantee that again the thorough regeneration of adsorbent obtains the compressed air of high-quality drying.
Described regeneration gas reclaims absorption drier, comprise the first adsorption tower, the second adsorption tower, be connected to first check valve on the first adsorption tower and the second adsorption tower top by pipeline, the second check valve, the 3rd check valve, the 4th check valve, be connected to the first pneumatic cut-off valve of the first adsorption tower and the second adsorption tower bottom by pipeline, the second pneumatic cut-off valve, the 3rd pneumatic cut-off valve, the 4th pneumatic cut-off valve, be connected with dry air outlet supervisor on the pipeline between described the first check valve and the second check valve, be connected with humid air entrance supervisor on the pipeline between described the 3rd pneumatic cut-off valve and the 4th pneumatic cut-off valve, it is characterized in that described dry air outlet supervisor by the dry air outlet stool that arranges connect behind the electric heater with the 3rd check valve and the 4th check valve between pipeline communicate, pipeline one tunnel between described the first pneumatic cut-off valve and the second pneumatic cut-off valve connects the 6th pneumatic cut-off valve successively, Pneumatic booster pump, capsule-type gas steady-flow tank, the 7th pneumatic cut-off valve and efficient dehydrating unit, described efficient dehydrating unit communicates with humid air entrance supervisor.
Described regeneration gas reclaims absorption drier, it is characterized in that on described the first adsorption tower and the second adsorption tower inner chamber upper and lower port gas diffuser being set.
Described regeneration gas reclaims absorption drier, it is characterized in that being provided with the first adjuster and throttling arrangement in the described dry air outlet stool.
Described regeneration gas reclaims absorption drier, it is characterized in that the pipeline one tunnel between described the first pneumatic cut-off valve and the second pneumatic cut-off valve connects the 5th pneumatic cut-off valve and muffler successively.
Described regeneration gas reclaims absorption drier, it is characterized in that described efficient dehydrating unit bottom is provided with self-draining arrangement.
Described regeneration gas reclaims absorption drier, it is characterized in that the pipeline between described effect dehydrating unit and the humid air entrance supervisor is provided with the 5th check valve and the second adjuster.
Described regeneration gas reclaims absorption drier, it is characterized in that being provided with temp probe in the described electric heater.
Described regeneration gas reclaims absorption drier, it is characterized in that described the first pneumatic cut-off valve, the second pneumatic cut-off valve, the 3rd pneumatic cut-off valve, the 4th pneumatic cut-off valve, electric heater, the 5th pneumatic cut-off valve, the 6th pneumatic cut-off valve, Pneumatic booster pump, the 7th pneumatic cut-off valve controlled by switch board.
Compared with prior art, the utlity model has following beneficial effect:
1) because of regeneration gas after efficient dehydrating unit carries out efficient dehumidification treatments, moisture entrained in the regeneration gas is separated, and discharges through self-draining arrangement; Regeneration gas after the dehumidification treatments enters from humid air entrance supervisor behind the 5th check valve and the second control valve, re-starts adsorption dry and processes.Therefore the equipment regeneration gas is recycled utilization, and air consumption is almost equal to zero, and belongs to energy-saving drying machine.
2) after efficient dehydrating unit breaks down or quits work, equipment need not to shut down, and can switch to traditional regeneration gas discharging modes, does not affect the dry work of gas.
3) regeneration gas is recycled after having increased the parts such as efficient dehydrating unit, reentered humid air entrance supervisor adsorption dry, the energy consumption that has reduced like this equipment can guarantee again that adsorbent thoroughly regenerates simultaneously, obtains the compressed air of high-quality drying.
4) in the efficient dehydrating unit functions such as cyclonic separation, pre-filtering and cohesion filtration are arranged, the large quantity of moisture in the regeneration gas is through stopping and flocking settling, at last by at self-draining arrangement moisture being discharged outside the system.
5) newly added equipment adopts capsule-type gas steady-flow tank to provide stable pressure for regeneration gas reclaims, and guarantees to satisfy the regeneration gas required enough power that dewaters in efficient dehydrating unit.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: A-the first adsorption tower; B-the second adsorption tower; 1-the first pneumatic cut-off valve; 2-the second pneumatic cut-off valve; 3-the 3rd pneumatic cut-off valve; 4-the 4th pneumatic cut-off valve; 5-the first check valve; 6-the second check valve; 7-the 3rd check valve; 8-the 4th check valve; 9-the first adjuster; The 10-throttling arrangement; The 11-electric heater; 12-the 5th pneumatic cut-off valve; 13-the 6th pneumatic cut-off valve; The 14-Pneumatic booster pump; 15-capsule-type gas steady-flow tank; 16-the 7th pneumatic cut-off valve; The efficient dehydrating unit of 17-; The 18-self-draining arrangement; 19-the 5th check valve; The 20-Pressure gauge; The 21-switch board; The 22-gas diffuser; The 23-temp probe; The 24-muffler; 25-dry air outlet supervisor; 26-humid air entrance supervisor; 27-dry air outlet stool.
The specific embodiment
Further specify the utility model below in conjunction with Figure of description.
As shown in Figure 1, regeneration gas reclaims absorption drier and comprises the first adsorption tower A and the second adsorption tower B, and the first adsorption tower A and the second adsorption tower B are provided with on Pressure gauge 20, the first adsorption tower A and the second adsorption tower B inner chamber upper and lower port gas diffuser 22 is set.Be provided with the first check valve 5, the second check valve 6, the 3rd check valve 7, the 4th check valve 8 between the first adsorption tower A and the second adsorption tower B top, wherein the first check valve 5 and the second check valve 6 are connected in series, the 3rd check valve 7 and the 4th check valve 8 are connected in series, the series connection group that the first check valve 5 and the second check valve 6 consist of is connected in parallel with the group of connecting that the 3rd check valve 7 and the 4th check valve 8 consist of, and is connected with dry air outlet supervisor 25 on the pipeline between the first check valve 5 and the second check valve 6.Be provided with the first pneumatic cut-off valve 1 between the first adsorption tower A and the second adsorption tower B top, the second pneumatic cut-off valve 2, the 3rd pneumatic cut-off valve 3, the 4th pneumatic cut-off valve 4, wherein the first pneumatic cut-off valve 1 and the second pneumatic cut-off valve 2 are connected in series, the 3rd pneumatic cut-off valve 3 and the 4th pneumatic cut-off valve 4 are connected in series, the series connection group that the first pneumatic cut-off valve 1 and the second pneumatic cut-off valve 2 consist of is connected in parallel with the group of connecting that the 3rd pneumatic cut-off valve 3 and the 4th pneumatic cut-off valve 4 consist of, and is connected with humid air entrance supervisor 26 on the pipeline between the 3rd pneumatic cut-off valve 3 and the 4th pneumatic cut-off valve 4.
Dry air outlet supervisor 25 connects electric heater 11 by the dry air outlet stool 27 that arranges, dry air outlet stool 27 is provided with the first adjuster 9 and throttling arrangement 10, electric heater 11 is connected with pipeline between the 3rd check valve 7 and the 4th check valve 8, be provided with temp probe 23 in the electric heater 11, temp probe 23 is by switch board 21 controls.
Pipeline one tunnel between the first pneumatic cut-off valve 1 and the second pneumatic cut-off valve 2 connects the 6th pneumatic cut-off valve 13, Pneumatic booster pump 14, capsule-type gas steady-flow tank 15, the 7th pneumatic cut-off valve 16 and efficient dehydrating unit 17 successively, efficient dehydrating unit 17 bottoms are provided with self-draining arrangement 18, efficient dehydrating unit 17 communicates with humid air entrance supervisor 26, and the pipeline between dehydrating unit 17 and humid air entrance supervisor 26 is provided with the 5th check valve 19 and the second adjuster 25; Another road of pipeline between the first pneumatic cut-off valve 1 and the second pneumatic cut-off valve 2 connects the 5th pneumatic cut-off valve 12 and muffler 24 successively.
The first above-mentioned pneumatic cut-off valve 1, the second pneumatic cut-off valve 2, the 3rd pneumatic cut-off valve 3, the 4th pneumatic cut-off valve 4, electric heater 11, the 5th pneumatic cut-off valve 12, the 6th pneumatic cut-off valve 13, Pneumatic booster pump 14, the 7th pneumatic cut-off valve 16 are by switch board 21 controls.
Work technological process of the present utility model is as follows:
Humid air from the upstream compressor at first filters micro-oil content, aqueous water in the compressed air through the prime prefilter, and enters regeneration gas recovery absorption drier (hereinafter to be referred as drying machine).Compressed air enters from humid air entrance 26, enter the first adsorption tower A through the 3rd pneumatic cut-off valve 3, compressed air is from bottom to top by fixed adsorption bed layer in the first adsorption tower A, the be fixed adsorbent of bed of moisture in air adsorbs, and dried compressed air is responsible for 25 through the first check valve 5 and dry air outlet and is removed subsequent technique from the first adsorption tower A top outlet.
Be responsible for the finished product gas of extraction 6% the 25 dry air outlet stools 27 of drawing as regeneration gas from the dry air outlet during the second adsorption tower B regeneration, and be decompressed to 0.05MPa pressure through the first adjuster 9, throttling arrangement 10, be heated to 160 ℃ through electric heater 11 again, pass through the second adsorption tower B adsorption bed from top to bottom through the 4th check valve 8 again, bring to efficient except warm device 17 through the first pneumatic cut-off valve 2.
For making the second adsorption tower B Pressure Drop to atmospheric pressure state, the compressed air of high pressure-temperature high humility is closed through pneumatic cut-off valve 12(pneumatic cut-off valve 13), muffler 24 noise reductions are processed rear discharged to atmosphere, after the second adsorption tower B Pressure Drop is stable to atmospheric pressure state and regeneration gas flow, close pneumatic cut-off valve 12, open pneumatic cut-off valve 13, regeneration gas enters booster pump 14 superchargings, and is kept in the capsule-type gas steady-flow tank 15.When the pressure in the capsule-type gas steady-flow tank rises to 1.6MPa, open pneumatic cut-off valve 16 and carry out efficient dehumidification treatments by 17 pairs of regeneration gases of efficient dehydrating unit.In the efficient dehydrating unit 17 functions such as cyclonic separation, pre-filtering and cohesion filtration are arranged, the large quantity of moisture in the regeneration gas is through stopping and flocking settling, at last by outside the self-draining arrangement 18 discharge systems of dehydrating unit lower curtate.Regeneration gas after removing most moisture content with the slightly high pressure of specific humidity air intlet end, enters the main air inlet pipeline of drying machine through the 5th check valve 19 and flow controller 25 again, re-starts absorbed type drying and processes.
When equipment gas boosting pump 14, capsule-type gas steady-flow tank 15, efficient dehydrating unit 17 etc. need maintenance or change parts, also can open the 5th pneumatic cut-off valve 12, close the 6th pneumatic cut-off valve 13, with traditional dryer discharging regeneration gas form work, to guarantee the demand of usefulness gas.
In use, the first adsorption tower A and the second adsorption tower B are used alternatingly, and within switching time, one is in absorption, and another is in regeneration.
Specific works technique of the present utility model is as follows:
Absorption: air enters adsorption bed by the 3rd pneumatic cut-off valve 3, the 4th pneumatic cut-off valve 4 when the first adsorption tower A and the second adsorption tower B work, then goes out system through the first check valve 5, the second check valve 6.
Regeneration: adsorption tower regeneration was divided into for six steps, be divided into successively bleed off pressure, thermal regeneration, blast-cold, pressurising, Pre-handoff and regeneration delays.
1) bleed off pressure when two adsorption towers after finishing switching time, through time-delay 5-15s, open in the second pneumatic cut-off valve 2, the second adsorption tower B air with pressure after pneumatic cut-off valve 12 and muffler 24 noise reductions are processed discharged to atmosphere.The time of bleeding off pressure is 5-15s.
2) thermal regeneration bleeds off pressure end through 5-15s, starts electric heater 11, closes pneumatic cut-off valve 12 and opens pneumatic cut-off valve 13.Regeneration gas is through the first adjuster 9, throttling arrangement 10, enter electric heater 11, and being heated to 160 ℃, to enter the second adsorption tower B by the 4th check valve 8 adsorbent bed, adsorbent is carried out heating desorption, the moisture content that is desorbed out brings to efficient except warm device 17 with regeneration gas through the second pneumatic cut-off valve 2, the six pneumatic cut-off valves 13.Heating period, the temperature of regeneration gas is 160 ℃, and be 3000-4000s heat time heating time.
3) blast-cold finishes heating through the 3000-4000s heater, closes electric heater 11.Regeneration air stream is to flowing to identical with the heating period.The main purpose of cold blowing is to reduce adsorbent temperature and is beneficial to adsorbent and reaches optimum state.The blast-cold time is 3000-4000s.
4) pressurising is through the 3000-4000s cold blowing, and adsorbent temperature is down to normal temperature, closes the second pneumatic cut-off valve 2.Regeneration gas is pressurized to the absorption operating pressure with the second adsorption tower B.The pressurising time is 150-200s.
5) Pre-handoff is complete through 150-200s the second adsorption tower B regeneration, opens the 4th pneumatic cut-off valve 4.The second adsorption tower B enters adsorbed state, and humid air enters the second adsorption tower B by humid air entrance supervisor the 26, the 4th pneumatic cut-off valve 4.Dry air after the absorption removes follow-up pipeline through the second check valve 6 by dry air outlet supervisor 25, and the regenerator pipeline is because of the first adsorption tower A, identical the quitting work of the second adsorption tower B pressure simultaneously.The Pre-handoff time is 5-15s.
6) regeneration delays is closed the 3rd pneumatic cut-off valve 3 through 5-15s.The first adsorption tower A enters parse state, and two adsorption towers were finished to switch and entered next cycle this moment.The regeneration delays time is 5-15s.
Regeneration gas reclaims the adsorption tower regeneration gas and was divided into for five steps, is divided into successively regeneration gas voltage stabilizing, supercharging, current stabilization, dehumidification treatments, recovery.
1) the regeneration gas voltage stabilizing is for making the second adsorption tower B Pressure Drop to atmospheric pressure state, and the compressed air of high pressure-temperature high humility is closed through the 5th pneumatic cut-off valve 12(the 6th pneumatic cut-off valve 13), muffler 24 noise reductions are processed rear discharged to atmosphere.After time, the second adsorption tower B Pressure Drop to atmospheric pressure state and regeneration gas flow reaches stable state through t1, and the 6th pneumatic cut-off valve 13 is opened (the 5th pneumatic cut-off valve 12 is closed), and regeneration gas enters supercharging device.
2) supercharging regeneration gas is low because of its pressure, thus can't be back in the pipe network of main line, and follow-up effect on moisture extraction is brought impact.So must be to the regeneration gas pressurized treatment.Pneumatic booster pump 14 adopts pneumatic mode control, and the source of the gas source is simple, high efficiency, and can lower control in a level pressure.
3) current stabilization is at Pneumatic booster pump 14 back current stabilization cylindrical shells, be provided with capsule-type gas steady-flow tank 15 in the cylindrical shell, when regeneration gas is constantly pressurizeed through moving booster pump 14, to 15 pressurisings of capsule-type gas steady-flow tank, capsule-type gas steady-flow tank 15 constantly raises along with regeneration gas pressure and expands.When the 7th pneumatic cut-off valve 16 was opened, regeneration gas pressure was then because of higher pressure and the speed stabilizing efficient dehydrating unit 17 of flowing through.
4) dehumidification treatments is opened the 7th pneumatic cut-off valve 16 after preposition supercharging and current stabilization, and the regeneration gas high velocity stream is provided with the metal dehydrater through efficient dehydrating unit 17 in the device, and cyclone baffle device, filter etc. carry out efficient water-removing to regeneration gas to be processed.After the dehumidification treatments of efficient dehydrating unit 17, the vapour content in the regeneration gas obviously reduces, and can again enter into humid air entrance supervisor 26 and re-start the absorbed type drying processing.
5) regeneration gas of recovery after dehumidification treatments, pressure is higher, because the regeneration gas of elevated pressures is scurried into to rise, needs 25 pairs of pressure of the second adjuster to regulate for making humid air air inlet pressure, makes regeneration gas pressure a little more than the humid air entrance point.
Claims (8)
1. regeneration gas reclaims absorption drier, comprise the first adsorption tower (A), the second adsorption tower (B), be connected to first check valve (5) on the first adsorption tower (A) and the second adsorption tower (B) top by pipeline, the second check valve (6), the 3rd check valve (7), the 4th check valve (8), be connected to first pneumatic cut-off valve (1) of the first adsorption tower (A) and the second adsorption tower (B) bottom by pipeline, the second pneumatic cut-off valve (2), the 3rd pneumatic cut-off valve (3), the 4th pneumatic cut-off valve (4), be connected with dry air outlet supervisor (25) on the pipeline between described the first check valve (5) and the second check valve (6), be connected with humid air entrance supervisor (26) on the pipeline between described the 3rd pneumatic cut-off valve (3) and the 4th pneumatic cut-off valve (4), it is characterized in that described dry air outlet supervisor (25) by the dry air outlet stool (27) that arranges connect electric heater (11) rear with the 3rd check valve (7) and the 4th check valve (8) between pipeline communicate, pipeline one tunnel between described the first pneumatic cut-off valve (1) and the second pneumatic cut-off valve (2) connects the 6th pneumatic cut-off valve (13) successively, Pneumatic booster pump (14), capsule-type gas steady-flow tank (15), the 7th pneumatic cut-off valve (16) and efficient dehydrating unit (17), described efficient dehydrating unit (17) communicates with humid air entrance supervisor (26).
2. regeneration gas as claimed in claim 1 reclaims absorption drier, it is characterized in that on described the first adsorption tower (A) and the second adsorption tower (B) inner chamber upper and lower port gas diffuser (22) being set.
3. regeneration gas as claimed in claim 1 reclaims absorption drier, it is characterized in that being provided with in the described dry air outlet stool (27) the first adjuster (9) and throttling arrangement (10).
4. regeneration gas as claimed in claim 1 reclaims absorption drier, it is characterized in that the pipeline one tunnel between described the first pneumatic cut-off valve (1) and the second pneumatic cut-off valve (2) connects the 5th pneumatic cut-off valve (12) and muffler (24) successively.
5. regeneration gas as claimed in claim 1 reclaims absorption drier, it is characterized in that described efficient dehydrating unit (17) bottom is provided with self-draining arrangement (18).
6. regeneration gas as claimed in claim 1 reclaims absorption drier, it is characterized in that the pipeline between described effect dehydrating unit (17) and the humid air entrance supervisor (26) is provided with the 5th check valve (19) and the second adjuster (25).
7. regeneration gas as claimed in claim 1 reclaims absorption drier, it is characterized in that being provided with in the described electric heater (11) temp probe (23).
8. regeneration gas as claimed in claim 4 reclaims absorption drier, it is characterized in that described the first pneumatic cut-off valve (1), the second pneumatic cut-off valve (2), the 3rd pneumatic cut-off valve (3), the 4th pneumatic cut-off valve (4), electric heater (11), the 5th pneumatic cut-off valve (12), the 6th pneumatic cut-off valve (13), Pneumatic booster pump (14), the 7th pneumatic cut-off valve (16) controlled by switch board (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420723 CN202823117U (en) | 2012-08-23 | 2012-08-23 | Recycling adsorption type dryer of regenerated gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420723 CN202823117U (en) | 2012-08-23 | 2012-08-23 | Recycling adsorption type dryer of regenerated gas |
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| Publication Number | Publication Date |
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| CN202823117U true CN202823117U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220420723 Expired - Fee Related CN202823117U (en) | 2012-08-23 | 2012-08-23 | Recycling adsorption type dryer of regenerated gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784548A (en) * | 2012-08-23 | 2012-11-21 | 杭州正大空分设备制造有限公司 | Recycling adsorption type dryer of regenerated gas and recycling adsorption method of regenerated gas |
-
2012
- 2012-08-23 CN CN 201220420723 patent/CN202823117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784548A (en) * | 2012-08-23 | 2012-11-21 | 杭州正大空分设备制造有限公司 | Recycling adsorption type dryer of regenerated gas and recycling adsorption method of regenerated gas |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Fuyang District of Hangzhou City, Zhejiang Province town of 311411 venture Road No. 88 Patentee after: Zhejiang Zhengda air separation equipment Co. Ltd. Address before: 311502, Hangzhou, Zhejiang province Fuyang Gaoqiao Town, Hong Fu Village, Fu Hong Village, No. 118 Patentee before: Hangzhou Zhengda Air Separation Equipment Manufacturing Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20180823 |
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| CF01 | Termination of patent right due to non-payment of annual fee |