CN203342629U - Gas adsorption drying system - Google Patents
Gas adsorption drying system Download PDFInfo
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- CN203342629U CN203342629U CN 201320180410 CN201320180410U CN203342629U CN 203342629 U CN203342629 U CN 203342629U CN 201320180410 CN201320180410 CN 201320180410 CN 201320180410 U CN201320180410 U CN 201320180410U CN 203342629 U CN203342629 U CN 203342629U
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- adsorption
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- valve
- adsorption dehumifier
- dryers
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Abstract
The utility model relates to a gas adsorption drying system which comprises main adsorption dryers, auxiliary adsorption dryers, an online water analyzer and auxiliary valves. The gas adsorption drying system is characterized in that the main adsorption dryers and the auxiliary adsorption dryers are connected in series; the size of each auxiliary adsorption dryer is 1/20-1/5 of that of each main adsorption dryer; the online water analyzer is arranged between the main adsorption dryers and the auxiliary adsorption dryers; different main adsorption dryers are connected in parallel; different auxiliary adsorption dryers are connected in parallel as well; and the main adsorption dryers and the auxiliary adsorption dryers can be controlled through the valves for adsorption, drying, regeneration and cooling independently. According to the gas adsorption drying system, the water content in outlet gas is guaranteed to be removed thoroughly, and at the same time, the risk of penetrating of the dryers is avoided, and energy consumption in a regeneration process of the dryers is reduced; besides, the service life of a molecular sieve can be prolonged; and the gas adsorption drying system is high in operability, good in economy, safe and reliable.
Description
Technical field
The utility model relates to the gas absorption drying and dehydrating system that a kind of main adsorption dehumifier, auxiliary adsorption dehumifier, online water analyzer and attached valve thereof form.
Background technology
The adsorption dry of gas has a wide range of applications in many industrial circles.For example, at sky, dividing, in the technical process such as co 2 liquefaction, natural gas transport and liquefaction, is to avoid in deep cooling or transportation forming ice or solid hydrate blocks or the requisite operation of damage equipment even thereby process gas dehydrates.The method of dehydration comprises absorption process, absorption method, low temperature process, membrane separation process etc.Wherein best to gas deep dehydration effect with absorption method.
In industry, generally all adopt double tower or three tower adsorption systems to realize the dry and dehydration of gas.At present, double tower or three-tower system all adopt the method for operating of regular switching, one tower adsorbs a tower regeneration, the 3rd tower or absorption or regeneration during three towers, that is: drier absorption switches to the drier after regeneration by gas feed after saturated, then carry out thermal regeneration to adsorbing saturated drier, last cooling standby.And while adopting this technique; for the material after guaranteeing to process meets the needs of downstream unit; need protective layer all be set outside absorption zone of saturation and absorption transition zone and occur to prevent the gas penetration phenomenon, thereby the ratio that makes protective layer account for whole adsorption bed at the solid absorbent use initial stage is very large.Yet protective layer does not participate in adsorption dewatering at running, thereby in process, the bed utilization rate is not high.Moreover this section does not play adsorbing protective layer with whole bed thermal regeneration and cooling, must cause the extra increase of unnecessary energy waste and production cost.In addition, can produce the phenomenon of active decline and Particle attrition with the growth solid absorbent of running time, at adsorbent, use late protection layer attenuate gradually, the performance of whole adsorption bed also can significantly descend.But, because this apparatus system is regular handover operation, only estimate that according to bed temperature and pressure reduction the service condition of solid absorbent is determined by the operator switching time, rather than switched according to the actual service condition of bed.There is the low problem of apparatus system initial operating stage bed utilization ratio equally in this switching mode, and the auto levelizer system operation later stage, the risk that inevitably exists bed to be penetrated.
The utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, to save the energy and increase economic benefit, thereby a kind of workable safe and reliable gas absorption drying system is provided.
The purpose of this utility model is achieved in that
A kind of system of gas absorption drying, it is characterized in that: comprise main adsorption dehumifier, auxiliary adsorption dehumifier, online water analyzer and attached valve, wherein, between main adsorption dehumifier and auxiliary adsorption dehumifier for being connected in series, online water analyzer is arranged between main adsorption dehumifier and auxiliary adsorption dehumifier, for being connected in parallel, between different main adsorption dehumifiers, by valve, control and carry out independently of one another adsorption dry, regeneration and cooling between different main adsorption dehumifiers; Also for being connected in parallel, between different auxiliary adsorption dehumifiers, by valve, control and carry out independently of one another adsorption dry, regeneration and cooling between different auxiliary adsorption dehumifiers.
Preferably, the quantity of above-mentioned main adsorption dehumifier is 2～4.
Preferably, the quantity of above-mentioned auxiliary adsorption dehumifier is 1～2.
Preferably, the volume of above-mentioned auxiliary adsorption dehumifier is 1/20～1/5 of main adsorption dehumifier volume.
The utility model utilizes main adsorption dehumifier and auxiliary adsorption dehumifier to remove the moisture in feed gas, and main adsorption dehumifier volume is large, and switching time is long, plays the effect of main adsorption dewatering; Auxiliary adsorption dehumifier bed volume is less, only plays the protectiveness suction-operated.Main adsorption dehumifier switches according to the change of moisture content of its exit gas in good time, can give full play to the effect of bed, reduces the number of times of main adsorption dehumifier regeneration, saves the energy.Auxiliary adsorption dehumifier regularly switches according to the switching times of main adsorption dehumifier, the risk that can avoid bed to be penetrated.The system provided is workable, is easy to industrializing implementation.
Advantage of the present utility model and positive role are:
(1) system provided by the utility model, not only improved the utilization ratio of bed, and can eliminate the risk that bed is penetrated fully, thereby guaranteed high efficiency and the reliability of technique.
(2) system provided by the utility model, reduced the regeneration times of main adsorption dehumifier and auxiliary adsorption dehumifier, not only saved the energy, and be conducive to extend bed service life, and then guaranteed that technique has good economy.
The accompanying drawing explanation
Fig. 1 is process flow diagram of the present utility model.
In figure, the code name implication is as follows:
D1: main adsorption dehumifier A;
D2: main adsorption dehumifier B;
D3: auxiliary adsorption dehumifier A;
D4: auxiliary adsorption dehumifier B;
AR: online water analyzer;
V1～V18: control valve.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done and explains
Embodiment 1
The concrete technology flow process of the present embodiment refers to Fig. 1.
Temperature is that at first the raw material moisture that 50 ℃, water content are 6000ppmv enters main adsorption dehumifier D1 through control valve V2, through valve V11, valve V6, enters auxiliary adsorption dehumifier D3, finally by V15, flows out, the gas product that to obtain temperature and be 55 ℃, water content be 1ppmv.The main adsorption dehumifier of selecting and auxiliary adsorption dehumifier are respectively 2, and wherein auxiliary adsorption dehumifier volume is 1/5 of main adsorption dehumifier volume.When the water content of online Moisture Meter indication reaches 300ppmv, unstripped gas is switched to main adsorption dehumifier D2, now must open valve V4 and V13, shut off valve V2 and V11.Pass into afterwards regeneration gas main adsorption dehumifier D1 is regenerated, regeneration gas enters main adsorption dehumifier D1 through valve V12, through valve V1, flows out.Complete regeneration and cooling after, close regeneration gas terminal valve V1 and V12, when the water content of online Moisture Meter indication reaches 300ppmv again, unstripped gas is switched back to D1, now open valve V2 and V11, shut off valve V4 and V13.Then pass into regeneration gas main adsorption dehumifier D2 is regenerated, regeneration gas enters main adsorption dehumifier D2 through valve V14, through valve V3, flows out.Complete regeneration and cooling after, close regeneration gas terminal valve V1 and V12, when the water content of online Moisture Meter indication reaches 300ppmv again, again unstripped gas is switched to main adsorption dehumifier D2 by main adsorption dehumifier D1, so be cycled to repeat the switching completed between main adsorption dehumifier.After main adsorption dehumifier switching 30 times, the auxiliary adsorption dehumifier of switching, to D4, is now opened valve V8 and V17, shut off valve V6 and V15.Open afterwards valve V5 and V16 and pass into regeneration gas to auxiliary adsorption dehumifier D3 regeneration, complete regeneration cooling rear shut off valve V5 and V16.After main adsorption dehumifier completes 30 switchings again, the auxiliary adsorption dehumifier of switching, to D3, is now opened valve V6 and V15, closes V8 and V17.Open afterwards valve V7 and V18 and pass into regeneration gas to auxiliary adsorption dehumifier D4 regeneration, complete the next switching of regeneration cooling standby and use.
Embodiment 2
The concrete technology flow process of the present embodiment refers to Fig. 1.
Temperature is that at first the raw material moisture that 40 ℃, water content are 400ppmv enters main adsorption dehumifier D1 and D1 ' through control valve V2, enter auxiliary adsorption dehumifier D3 through valve V11, valve V6, flow out the gas product that to obtain temperature and be 40 ℃, water content be 0.4ppmv finally by V15.The main adsorption dehumifier of selecting is that 4, auxiliary adsorption dehumifier are 2, and wherein auxiliary adsorption dehumifier volume is 1/10 of main adsorption dehumifier volume.Increase other 2 main adsorption dehumifier D1s ' and D2' and the corresponding control valve in parallel with D1 and D2 in Fig. 1 now.When the water content of online Moisture Meter indication reaches 40ppmv, unstripped gas is switched to main adsorption dehumifier D2 and D2 ', now must open valve V4 and V13, shut off valve V2 and V11.Pass into afterwards regeneration gas to main adsorption dehumifier D1 and D1 ' regeneration, regeneration gas enters main adsorption dehumifier D1 and D1 ' through valve V12, through valve V1, flows out.Complete regeneration and cooling after, close regeneration gas terminal valve V1 and V12, when the water content of online Moisture Meter indication reaches 40ppmv again, unstripped gas is switched back to main adsorption dehumifier D1 and D1 ', now open valve V2 and V11, shut off valve V4 and V13.Then pass into regeneration gas to main adsorption dehumifier D2 and D2' regeneration, regeneration gas enters main adsorption dehumifier D2 and D2 ' through valve V14, through valve V3, flows out.Complete regeneration and cooling after, close regeneration gas terminal valve V1 and V12, when the water content of online Moisture Meter indication reaches 0.05ppmv again, again by unstripped gas by main adsorption dehumifier D1 and D1, switch to main adsorption dehumifier D2 and D2 ', so be cycled to repeat the switching completed between main adsorption dehumifier.After main adsorption dehumifier switching 15 times, the auxiliary adsorption dehumifier of switching, to D4, is now opened valve V8 and V17, shut off valve V6 and V15.Open afterwards valve V5 and V16 and pass into regeneration gas to auxiliary adsorption dehumifier D3 regeneration, complete regeneration cooling rear shut off valve V5 and V16.After main adsorption dehumifier completes 15 switchings again, the auxiliary adsorption dehumifier of switching, to D3, is now opened valve V6 and V15, closes V8 and V17.Open afterwards valve V7 and V18 and pass into regeneration gas to auxiliary adsorption dehumifier D4 regeneration, complete the next switching of regeneration cooling standby and use.
Embodiment 3
The concrete technology flow process of the present embodiment refers to Fig. 1.
Temperature is that at first the raw material moisture that 1 ℃, water content are 5ppmv enters main adsorption dehumifier D1 through control valve V2, through valve V11, valve V6, enters auxiliary adsorption dehumifier D3, finally by V15, flows out, the gas product that to obtain temperature and be 5 ℃, water content be 0.The dry device of main absorption of selecting is that 2, auxiliary adsorption dehumifier are 1, and wherein auxiliary adsorption dehumifier volume is 1/20 of main adsorption dehumifier volume.Now the auxiliary adsorption dehumifier D4 in Fig. 1 need remove and change into pipeline with V17 and is connected, and valve V7, V10 and V18 and respective lines need directly remove.When the water content of online Moisture Meter indication reaches 0.75ppmv, unstripped gas is switched to main adsorption dehumifier D2, now must open valve V4 and V13, shut off valve V2 and V11.Pass into afterwards regeneration gas main adsorption dehumifier D1 is regenerated, regeneration gas enters main adsorption dehumifier D1 through valve V12, through valve V1, flows out.Complete regeneration and cooling after, close regeneration gas terminal valve V1 and V12, when the water content of online Moisture Meter indication reaches 0.75ppmv again, unstripped gas is switched back to D1, now open valve V2 and V11, shut off valve V4 and V13.Then pass into regeneration gas main adsorption dehumifier D2 is regenerated, regeneration gas enters main adsorption dehumifier D2 through valve V14, through valve V3, flows out.Complete regeneration and cooling after, close regeneration gas terminal valve V1 and V12, when the water content of online Moisture Meter indication reaches 0.75ppmv again, again unstripped gas is switched to main adsorption dehumifier D2 by main adsorption dehumifier D1, so be cycled to repeat the switching completed between main adsorption dehumifier.After main adsorption dehumifier switching 4 times, the auxiliary adsorption dehumifier D3 of switching, to reproduced state, now opens valve V8, shut off valve V6 and V15.Open afterwards valve V5 and V16 and pass into regeneration gas to auxiliary adsorption dehumifier D3 regeneration, complete regeneration cooling rear shut off valve V5 and V16, again open valve V6 and V15, close V8.After completing 4 switchings again, main adsorption dehumifier repeats the handover operation that above operation completes auxiliary adsorption dehumifier.
Claims (4)
1. the system of a gas absorption drying, it is characterized in that: comprise main adsorption dehumifier, auxiliary adsorption dehumifier, online water analyzer and attached valve, wherein, between main adsorption dehumifier and auxiliary adsorption dehumifier for being connected in series, online water analyzer is arranged between main adsorption dehumifier and auxiliary adsorption dehumifier, for being connected in parallel, between different main adsorption dehumifiers, by valve, control and carry out independently of one another adsorption dry, regeneration and cooling between different main adsorption dehumifiers; Also for being connected in parallel, between different auxiliary adsorption dehumifiers, by valve, control and carry out independently of one another adsorption dry, regeneration and cooling between different auxiliary adsorption dehumifiers.
2. gas absorption drying system according to claim 1, is characterized in that, the quantity of main adsorption dehumifier is 2～4.
3. gas absorption drying system according to claim 1, is characterized in that, the quantity of auxiliary adsorption dehumifier is 1～2.
4. gas absorption drying system according to claim 1, is characterized in that, the volume of auxiliary adsorption dehumifier is 1/20～1/5 of main adsorption dehumifier volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180410 CN203342629U (en) | 2013-04-12 | 2013-04-12 | Gas adsorption drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180410 CN203342629U (en) | 2013-04-12 | 2013-04-12 | Gas adsorption drying system |
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| CN203342629U true CN203342629U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320180410 Expired - Fee Related CN203342629U (en) | 2013-04-12 | 2013-04-12 | Gas adsorption drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157353A (en) * | 2013-04-12 | 2013-06-19 | 北京安珂罗工程技术有限公司 | System and method for adsorbing and drying gas |
-
2013
- 2013-04-12 CN CN 201320180410 patent/CN203342629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157353A (en) * | 2013-04-12 | 2013-06-19 | 北京安珂罗工程技术有限公司 | System and method for adsorbing and drying 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 | ||
| CP02 | Change in the address of a patent holder |
Address after: 100015 Jiuxianqiao Chaoyang District East Road, No. A3, office building on the west side of the 3 floor of the Patentee after: Beijing Encryo Engineering Technology Co., Ltd. Address before: 100015, No. nine, Jiuxianqiao East Road, Beijing, A2 office on the west side of the 4 floor Patentee before: Beijing Encryo Engineering Technology Co., Ltd. |
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| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: On the east side of building 10, Ubp B10 100015 Beijing City, Chaoyang District Jiuxianqiao road two Patentee after: Beijing Encryo Engineering Technology Co., Ltd. Address before: 100015 Jiuxianqiao Chaoyang District East Road, No. A3, office building on the west side of the 3 floor of the Patentee before: Beijing Encryo Engineering Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20190412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |