CN102553404B - Drying device and on-line monitoring instrument - Google Patents
Drying device and on-line monitoring instrument Download PDFInfo
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- CN102553404B CN102553404B CN201210030101.4A CN201210030101A CN102553404B CN 102553404 B CN102553404 B CN 102553404B CN 201210030101 A CN201210030101 A CN 201210030101A CN 102553404 B CN102553404 B CN 102553404B
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Abstract
The invention discloses a drying device. The drying device comprises an inner pipe, an outer pipe and a tee joint component, wherein the inner pipe is formed by parallelly assembling a plurality of polysulfone hollow fibrous membranes, and is used for performing osmotic treatment on sample gas which flows through the inner pipe so as to ensure that water vapor is permeated into an outer wall of the inner pipe; the outer pipe is sleeved at the periphery of the inner pipe, and a gas circulation channel is formed between the outer pipe and the inner pipe and is used for bringing away the water vapor on the outer wall of the inner pipe when the airflow of backflush gas flows through the gas circulation channel; and the tee joint component is used for connecting the inner pipe and the outer pipe to ensure that the sample gas and the backflush gas can be separated to circulate in the inner pipe and the gas circulation channel. In addition, an on-line monitoring instrument is also provided.
Description
[technical field]
The present invention relates to dehumidifying technology field, particularly relate to a kind of drying device and on-line monitoring instrument.
[background technology]
Along with development and the growth in the living standard of producing, air dewetting has developed into a new technology.Conventional air dehumidification method has freezing dehumidifying, liquid desiccant dehumidifying, solid drier dehumidifying etc.Although these traditional dehumanization methods are widely used, and still have certain deficiency.For example: freeze drying method can not reach low-down dew point, and energy consumption is larger; There is the etching problem of hygroscopic agent in liquid desiccant dehumidifying; The desiccant regeneration process of solid drier dehumidifying is complicated and can consume a large amount of energy etc.Membrane method dehumidifying, as an emerging dehumidifying technology, along with the development of new material and membrane separation technique, has obtained very large application aspect air dewetting.Make steam see through film, must produce a concentration difference at the two ends of film.This concentration difference both can, by poor the causing of film two ends steam partial pressure, can be caused by film two ends temperature difference again.General membrane method dehumidifying is substantially all poor as driving gesture using the steam partial pressure on film both sides.
For many years, membrane method dehumidifying is mainly used in the separation of industrial various gases, the dehydration of the organic solvents such as the dry and ethanol of mist.The general volume of drying tube used is larger, and adopt Compressed Gas as air inlet with increase partial pressure difference.The air that is not suitable for low discharge is dry.The drying tube that on-line monitoring instrument adopts in air inlet pretreatment link is at present generally nafion pipe, and nafion is polytetrafluoroethylene (PTFE) and perfluor-3, the copolymer of 6-diepoxy-4-methyl-7-decene-sulfuric acid.Although nafion pipe drying effect is good, volume is little, expensive, thereby has greatly improved the manufacturing cost of on-line monitoring instrument.
[summary of the invention]
Based on this, be necessary to provide a kind of drying device and the method that cost is low, drying effect is good.
A kind of drying device, comprising:
Inner tube, adopts many ps hollow fiber uf membrane row set to form, and permeates processing for the sample gas to flowing through, and makes the outer wall of vapor permeation to inner tube;
Outer tube, is set in the periphery of described inner tube, and between described inner tube, has gas communication passage, for the steam for taking away described outer wall of inner tube described in back flushing air airflow passes when gas communication passage; And
Three-way component for connecting described inner tube and described outer tube, can separately circulate sample gas and back flushing air in inner tube and described gas communication passage.
In a preferred embodiment, the surface of described inner tube is coated with silicon rubber, and two ends are used epoxy resin to encapsulate, and described epoxy resin is used for gathering fixing many ps hollow fiber uf membrane and be tightly connected described inner tube and described three-way component.
In a preferred embodiment, described outer tube adopts polytetrafluoroethylmaterial material to make.
In a preferred embodiment, described three-way component is two three-way connections, is arranged on respectively the two ends of described inner tube and described outer tube; Described three-way connection comprise outer connect mouthful, in connect mouthful and common interface, described inner tube is through described common interface, in extending to, connect mouthful and epoxy resin by inner tube end with described in connect mouth and be tightly connected; The port of described outer tube is connected with described common interface, for being communicated with described gas communication passage and the described outer mouth that connects.
In a preferred embodiment, the sample entraining air stream of described inner tube is contrary with the back flushing air airflow direction of described gas communication passage, and the ratio of the throughput of described sample gas and the throughput of back flushing air is 2: 1.
In a preferred embodiment, also comprise aspiration pump, described aspiration pump is connected with described gas communication passage, for extracting the gas in described gas communication passage, forms by described inner tube wall the osmotic pressure to outer wall.
A kind of on-line monitoring instrument, comprise monitoring equipment, described monitoring equipment comprises gas collecting mouth and gas evacuation port, for carrying out air quality standard detection, output detections result and the gas after detecting discharged by gas evacuation port entering the gas of gas collecting mouth, also comprise above-mentioned drying device, described drying device is installed on the gas collecting mouth of described monitoring equipment.
In a preferred embodiment, one end of the inner tube of described drying device is connected with the gas collecting mouth of described monitoring equipment by described three-way component, the other end of the described inner tube collection air that is used for sampling.
In a preferred embodiment, described three-way component is two three-way connections, is arranged on respectively the two ends of described inner tube and described outer tube; Described three-way connection comprise outer connect mouthful, in connect mouthful and common interface, described inner tube is through described common interface, in extending to, connect mouthful and epoxy resin by inner tube end with described in connect mouth and be tightly connected; The port of described outer tube is connected with described common interface, for being communicated with described gas communication passage and the described outer mouth that connects; Described drying device also comprises aspiration pump, and described aspiration pump is connected with the outer mouth that connects of a three-way connection, connects mouth for the collection air of sampling in a described three-way connection; In another three-way connection, connect mouth and be divided into two-way, a road is connected with the outer mouth that connects of described another three-way connection, and another road is connected with the gas collecting mouth of described monitoring equipment.
In a preferred embodiment, the sample entraining air stream of described inner tube is contrary with the back flushing air airflow direction of described gas communication passage, and the ratio of the throughput of described sample gas and the throughput of back flushing air is 2: 1.
Above-mentioned drying device and on-line monitoring instrument, the selectively penetrating processing of the sample gas of the inner tube of flowing through many ps hollow fiber uf membrane in inner tube, steam in sample gas infiltrates into outer wall from the inwall of ps hollow fiber uf membrane, infiltrate into the gas communication passage of outer wall of inner tube, follow back flushing air air-flow bleeder.Inner tube is made up of many ps hollow fiber uf membrane, and air contact area is large, and drying effect is good.In addition, above-mentioned drying device and on-line monitoring instrument, simple in structure, cost is low.
[brief description of the drawings]
Fig. 1 is the structure chart of the drying device of preferred embodiment.
[detailed description of the invention]
Undesirable in order to solve traditional drying device drying effect, and the higher problem of cost input, a kind of cost is low, drying effect is good drying device and on-line monitoring instrument have been proposed.
As shown in Figure 1, the drying device of preferred embodiment, comprises inner tube 110, outer tube 120 and three-way component 130.Inner tube 110 adopts many ps hollow fiber uf membrane row set to form, and permeates processing for the sample gas to flowing through, and makes the outer wall of vapor permeation to inner tube 110.Sample gas flows in the process of the other end from one end of inner tube 110 through the hollow bulb of ps hollow fiber uf membrane, due to the selective osmosis of ps hollow fiber uf membrane, steam in sample gas penetrates into the outer wall of ps hollow fiber uf membrane from the hollow bulb of ps hollow fiber uf membrane, infiltrate into the outer wall of inner tube 110.Outer tube 120 is set in the periphery of inner tube 110, and has gas communication passage between inner tube 110, takes away the steam of inner tube 110 outer walls when back flushing air airflow passes gas communication passage.Three-way component 130, for connecting inner tube 110 and outer tube 120, can separately circulate sample gas and back flushing air in inner tube 110 and gas circulation passage.
Above-mentioned drying device, the selectively penetrating processing of the sample gas of the inner tube of flowing through 110 ps hollow fiber uf membrane in inner tube 110, the steam in sample gas penetrates into aerated flow circulation passage by inner tube 110, follows back flushing air air-flow bleeder.In sample gas flow process, the steam in sample gas constantly infiltrates into the outer wall of inner tube 110 from inner tube 110, and is constantly taken out of by back flushing air.Inner tube 110 is made up of many ps hollow fiber uf membrane, and air contact area is large, and drying effect is good.In addition, this installation cost is low, easy care.
In the present embodiment, the surface of inner tube 110 is coated with silicon rubber, and two ends are used epoxy resin to encapsulate.Epoxy resin is used for gathering fixing many ps hollow fiber uf membrane and be tightly connected inner tube 110 and three-way component 130.Epoxy resin can separately circulate sample gas and back flushing air in inner tube 110 and gas circulation passage.
In the present embodiment, outer tube 120 adopts polytetrafluoroethylmaterial material to make.In order to remove to the full extent the steam in sample gas, can realize by the length that increases inner tube 110 and outer tube 120, in order not affect the volume of device, inner tube 110 and outer tube 120 can be made into ring-type or helical form simultaneously.
In the present embodiment, three-way component 130 is two three-way connections, is arranged on respectively the two ends of inner tube 110 and outer tube 120.Three-way connection comprise outer connect mouthfuls 132, in connect mouthfuls 134 and common interface 136.Inner tube 110 is through common interface 136, in extending to, connect mouthfuls 134 and epoxy resin by inner tube 110 ends with in connect mouthfuls 134 and be tightly connected.While inside connecting mouth 134 collection sample gas, epoxy resin blocking-up sample gas enters gas communication passage, sample gas enters the hollow bulb of ps hollow fiber uf membrane of inner tube 110 through selectively penetrating processing, and the steam in sample gas enters gas communication passage along ps hollow fiber uf membrane wall.While installing and using, inner tube 110 ends need to be along inner tube 110 one deck epoxy resin of radially pruning, to ensure the perforation of the hollow bulb of every ps hollow fiber uf membrane in inner tube 110.The port of outer tube 120 is connected with common interface 136, for being communicated with gas communication passage and connecting mouth 132 outward.
In the present embodiment, the sample entraining air stream of inner tube 110 is contrary with the back flushing air airflow direction of gas communication passage, and the ratio of the throughput of sample gas and the throughput of back flushing air is 2: 1.
In the present embodiment, drying device also comprises aspiration pump.Aspiration pump is connected with gas communication passage, for the gas in extracting gases circulation passage, forms by inner tube 110 inwalls the osmotic pressure to outer wall.
In addition, also provide a kind of on-line monitoring instrument.
A kind of on-line monitoring instrument, comprise monitoring equipment and above-mentioned drying device, this monitoring equipment comprises gas collecting mouth and gas evacuation port, for the gas that enters gas collecting mouth being carried out to air quality standard detection, output detections result and the gas after detecting being discharged by gas evacuation port.Drying device is installed on the gas collecting mouth of monitoring equipment.
In the present embodiment, one end of the inner tube 110 of drying device is connected with the gas collecting mouth of monitoring equipment by three-way component, inner tube 110 other ends collection air that is used for sampling.
In the present embodiment, three-way component 130 is two three-way connections, is arranged on respectively the two ends of inner tube 110 and outer tube 120.Three-way connection comprise outer connect mouthfuls 132, in connect mouthfuls 134 and common interface 136.Inner tube 110 is through 136 common interfaces, in extending to, connect mouthfuls 134 and epoxy resin by inner tube 110 ends with in connect mouthfuls 134 and be tightly connected.The port of outer tube 120 is connected with common interface 136, for being communicated with gas communication passage and connecting mouth 132 outward.Drying device also comprises aspiration pump, and aspiration pump is connected with the outer mouth that connects of a three-way connection, connects mouth for the collection air of sampling in this three-way connection.In another three-way connection, connect mouth and be divided into two-way, a road is connected with the outer mouth that connects of same three-way connection, and another road is connected with the gas collecting mouth of monitoring equipment.
In the present embodiment, the sample entraining air stream of inner tube 110 is contrary with the back flushing air airflow direction of gas communication passage, and the ratio of the throughput of sample gas and the throughput of back flushing air is 2: 1.
Above-mentioned drying device and on-line monitoring instrument, the sample gas of the inner tube of flowing through 110 is through the selectively penetrating processing of inner tube 110, and the steam in sample gas penetrates into aerated flow circulation passage by inner tube 110, follows aeration gas flow bleeder.Inner tube 110 is made up of many ps hollow fiber uf membrane, and air contact area is large, and drying effect is good.In addition, this drying tube is simple in structure, processing ease, and volume is little, and cost is low, easy care, sustainable operation, non-secondary pollution, remarkable for the effect on moisture extraction of air, meet the demand of on-line monitoring instrument completely.In addition, energy consumption is low, can use for a long time.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. a drying device, is characterized in that, comprising:
Inner tube, adopts many ps hollow fiber uf membrane row set to form, and permeates processing for the sample gas to flowing through, and makes the outer wall of vapor permeation to inner tube;
Outer tube, is set in the periphery of described inner tube, and between described inner tube, has gas communication passage, for the steam for taking away described outer wall of inner tube described in back flushing air airflow passes when gas communication passage; And
Three-way component for connecting described inner tube and described outer tube, can separately circulate sample gas and back flushing air in inner tube and described gas communication passage; Described three-way component is two three-way connections, is arranged on respectively the two ends of described inner tube and described outer tube; Described three-way connection comprise outer connect mouthful, in connect mouthful and common interface, described inner tube is through described common interface, in extending to, connect mouthful and epoxy resin by inner tube end with described in connect mouth and be tightly connected; The port of described outer tube is connected with described common interface, for being communicated with described gas communication passage and the described outer mouth that connects; Described inner and outer tubes are coiled into ring-type or helical form.
2. drying device according to claim 1, it is characterized in that, the surface of described inner tube is coated with silicon rubber, and two ends are used epoxy resin to encapsulate, and described epoxy resin is used for gathering fixing many ps hollow fiber uf membrane and be tightly connected described inner tube and described three-way component.
3. drying device according to claim 2, is characterized in that, described outer tube adopts polytetrafluoroethylmaterial material to make.
4. drying device according to claim 1, is characterized in that, the sample entraining air stream of described inner tube is contrary with the back flushing air airflow direction of described gas communication passage, and the ratio of the throughput of described sample gas and the throughput of back flushing air is 2:1.
5. drying device according to claim 1, is characterized in that, also comprises aspiration pump, and described aspiration pump is connected with described gas communication passage, for extracting the gas in described gas communication passage, forms by described inner tube wall the osmotic pressure to outer wall.
6. an on-line monitoring instrument, comprise monitoring equipment, described monitoring equipment comprises gas collecting mouth and gas evacuation port, for carrying out air quality standard detection, output detections result and the gas after detecting discharged by gas evacuation port entering the gas of gas collecting mouth, it is characterized in that, also comprise the drying device described in any one in claim 1 to 4, described drying device is installed on the gas collecting mouth of described monitoring equipment.
7. on-line monitoring instrument according to claim 6, is characterized in that, one end of the inner tube of described drying device is connected with the gas collecting mouth of described monitoring equipment by described three-way component, the other end of the described inner tube collection air that is used for sampling.
8. on-line monitoring instrument according to claim 6, is characterized in that, described drying device also comprises aspiration pump, and described aspiration pump is connected with the outer mouth that connects of a three-way connection, connects mouth for the collection air of sampling in a described three-way connection; In another three-way connection, connect mouth and be divided into two-way, a road is connected with the outer mouth that connects of described another three-way connection, and another road is connected with the gas collecting mouth of described monitoring equipment.
9. on-line monitoring instrument according to claim 6, is characterized in that, the sample entraining air stream of described inner tube is contrary with the back flushing air airflow direction of described gas communication passage, and the ratio of the throughput of described sample gas and the throughput of back flushing air is 2:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210030101.4A CN102553404B (en) | 2012-02-10 | 2012-02-10 | Drying device and on-line monitoring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030101.4A CN102553404B (en) | 2012-02-10 | 2012-02-10 | Drying device and on-line monitoring instrument |
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| CN102553404A CN102553404A (en) | 2012-07-11 |
| CN102553404B true CN102553404B (en) | 2014-06-25 |
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| CN201210030101.4A Active CN102553404B (en) | 2012-02-10 | 2012-02-10 | Drying device and on-line monitoring instrument |
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| CN104279675A (en) * | 2014-10-17 | 2015-01-14 | 中山市蓝水能源科技发展有限公司 | Dehumidification device in chilled-water-storage refrigerating system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231211A (en) * | 1998-04-09 | 1999-10-13 | 中国科学院大连化学物理研究所 | Membrane method dehumidifying separator |
| CN201609628U (en) * | 2009-04-09 | 2010-10-20 | 陈明 | Gas dewatering device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02240537A (en) * | 1989-03-14 | 1990-09-25 | Fuji Electric Co Ltd | Analysis apparatus for ozone in solution |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1231211A (en) * | 1998-04-09 | 1999-10-13 | 中国科学院大连化学物理研究所 | Membrane method dehumidifying separator |
| CN201609628U (en) * | 2009-04-09 | 2010-10-20 | 陈明 | Gas dewatering device |
Non-Patent Citations (1)
| Title |
|---|
| JP平2-240537A 1990.09.25 |
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Effective date of registration: 20181130 Address after: 430040 Room 587, Block B1, Biological Innovation Park, 666 High-tech Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN BOGAN SPACE TECH CO. LTD. Address before: 518000, 602, 6th floor, Zhonglian Tongtai Industrial Plant, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Saibaolun Technology Co., Ltd. |