CN107884440A - A kind of flue gas dew point detection means - Google Patents
A kind of flue gas dew point detection means Download PDFInfo
- Publication number
- CN107884440A CN107884440A CN201711210525.8A CN201711210525A CN107884440A CN 107884440 A CN107884440 A CN 107884440A CN 201711210525 A CN201711210525 A CN 201711210525A CN 107884440 A CN107884440 A CN 107884440A
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- China
- Prior art keywords
- dew point
- hollow fibre
- fibre filament
- flue gas
- cavity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of flue gas dew point detection means,Including shell,Hollow fibre filament,Dew point is popped one's head in and joint,The enclosure material is polytetrafluoroethylene (PTFE),The enclosure includes a Ge " Shang " cavity of shape and two fixation perforates,The hollow fibre filament material is the polytetrafluoroethylene (PTFE) macromolecule non-porous hydrophilic film of load sulfonic acid group,The hollow fibre filament internal diameter is 3mm 4mm,The hollow fibre filament radical is 1,The hollow fibre filament both ends are transversely mounted on the bottom of cavity by joint sealing,Flue gas is in hollow fibre filament circulating inside,The vertical top for being sealingly mounted at cavity of dew point probe,For measuring the dew point of cavity sealing space,This kind of flue gas dew point detection means,Not only measurement accuracy is high,Stability is good,And improve the life-span of dew point probe,Reduce dew point hygrometer upkeep operation amount,It is scientific and reasonable for structure,It is safe and convenient to use,Provided a great help for people.
Description
Technical field
The present invention relates to a kind of environment monitoring technical field, more particularly, to a kind of flue gas dew point detection means.
Background technology
In environment monitoring, moisture in flue gas not only can Failure analysis equipment, and the active principle in sample gas can be molten
Solution influences accuracy of detection in condensed water；In the case of use infrared spectrum analyser, moisture even understands the accurate of interference Instrument
Degree, therefore the precisely equipment of detection smoke moisture, it can be that smoke moisture control technology extends efficient help, be unusual service condition
Early warning is provided, ensures that flue gas monitoring system being capable of the stable operation of long-term security.
Detection probe is directly arranged in gas circuit by traditional hygrometer or dew point hygrometer, is directly contacted with flue gas, for a long time
After use, dust, grease in flue gas etc. can be attached to detecting head surface, influence accuracy of detection, and SO2, NO in flue gas etc.
Highly corrosive gas even can damage probe, influence the stability of flue gas detecting system.
The polytetrafluoroethylene (PTFE) macromolecule non-porous hydrophilic film of load sulfonic acid group has the characteristic for only allowing hydrone to pass through, when
When outside has the water vapor concentration difference to produce in film, intermembranous can produce a kind of makes the concentration be intended to homogeneous driving force.Hydrone
Membranous wall is penetrated with this driving force, moved by the low side of the high lateral moisture concentration of moisture concentration.At present, such a film is being pressed
The multiple fields such as contracting air damping, analytical instrument, haldane-Henderson gas analysis apparatus widely use.
The content of the invention
The technical problem to be solved in the present invention is to overcome the defects of existing, there is provided a kind of flue gas dew point detection means, so as to
Solve the above problems.
To achieve the above object, the present invention provides following technical scheme：A kind of flue gas dew point detection means, including shell,
Hollow fibre filament, dew point probe and joint, the enclosure material are polytetrafluoroethylene (PTFE), and the enclosure includes a Ge " Shang " shape
Cavity and two fixation perforates, the hollow fibre filament material for load sulfonic acid group polytetrafluoroethylene (PTFE) macromolecule it is non-porous
Hydrophilic film, the hollow fibre filament internal diameter are 3mm-4mm, and the hollow fibre filament radical is 1, the hollow fibre filament both ends
The bottom of cavity is transversely mounted on by joint sealing, flue gas is vertical in hollow fibre filament circulating inside, the dew point probe
The top of cavity is sealingly mounted at, for measuring the dew point of cavity sealing space.
As a preferred technical solution of the present invention, the dew point probe is connected by wire with dew point display device.
Compared with prior art, the beneficial effects of the invention are as follows：This kind of flue gas dew point detection means, not only measurement accuracy
Height, stability is good, and improves the life-span of dew point probe, reduces dew point hygrometer upkeep operation amount, scientific and reasonable for structure, uses
Safe ready, provided a great help for people.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of crosscutting profile of flue gas dew point detection means of the present invention；
In figure：1st, shell；2nd, hollow fibre filament；3rd, dew point is popped one's head in；4th, joint.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments, is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of flue gas dew point detection means, including it is shell 1, hollow
Filament 2, dew point probe 3 and joint 4, the material of shell 1 be polytetrafluoroethylene (PTFE), include a Ge " Shang inside shell 1 " cavity of shape
With two fixation perforates, the material of hollow fibre filament 2 is the polytetrafluoroethylene (PTFE) macromolecule non-porous hydrophilic film of load sulfonic acid group, in
The internal diameter of hollow fiber silk 2 is 3mm-4mm, and the radical of hollow fibre filament 2 is 1, and the both ends of hollow fibre filament 2 seal horizontal stroke by joint 4
To installed in the bottom of cavity, flue gas the upper of cavity is sealingly mounted in the circulating inside of hollow fibre filament 2, dew point probe 3 vertically
Portion, for measuring the dew point of cavity sealing space.
Dew point probe 3 is connected by wire with dew point display device.
Concrete principle：In use, the flue gas containing highly corrosive component passes through doughnut in the inner side of hollow fibre filament 2
Film only allows hydrone by the way that the flue gas of the inner side of hollow fibre filament 2 is with the gas of the confined space where dew point probe 3 through hollow
Tunica fibrosa carries out hydrone exchange, and hydrone concentration balance, the confined space that dew point probe 3 measures most are reached inside and outside telolemma
Humidity be flue gas humidity, employ load sulfonic acid group polytetrafluoroethylene (PTFE) macromolecule non-porous hydrophilic film, based on chemistry
Reaction mechanism only allows hydrone by the way that the component outside molecule is removed water in flue gas to be visited by hollow-fibre membrane into dew point
First 3 place confined space, fundamentally solves the destruction to dew point probe 3 such as highly corrosive component, dust, grease in flue gas
Problem, the life-span of dew point probe 3 is extended, improves measurement accuracy, dew point probe 3 is due in confined space, air-flow
It is relatively stable, the characteristic of dew point is detected directly in gas circuit compared to traditional dew point hygrometer, eliminates gas flow rate to dew point measurement
The influence of error.
This kind of flue gas dew point detection means, not only measurement accuracy is high, and stability is good, and improves the longevity of dew point probe 3
Life, reduces dew point hygrometer upkeep operation amount, scientific and reasonable for structure, safe and convenient to use, is provided a great help for people.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (2)
1. a kind of flue gas dew point detection means, including shell（1）, hollow fibre filament（2）, dew point probe（3）And joint（4）, its
It is characterised by, the shell（1）Material is polytetrafluoroethylene (PTFE), the shell（1）Inside includes a Ge " Shang " cavity and two of shape
Individual fixation perforate, the hollow fibre filament（2）Material is the polytetrafluoroethylene (PTFE) macromolecule non-porous hydrophilic film of load sulfonic acid group,
The hollow fibre filament（2）Internal diameter is 3mm-4mm, the hollow fibre filament（2）Radical is 1, the hollow fibre filament（2）Two
End passes through joint（4）Sealing is transversely mounted on the bottom of cavity, and flue gas is in hollow fibre filament（2）Circulating inside, the dew point
Probe（3）The vertical top for being sealingly mounted at cavity, for measuring the dew point of cavity sealing space.
A kind of 2. flue gas dew point detection means according to claim 1, it is characterised in that the dew point probe（3）Pass through
Wire is connected with dew point display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210525.8A CN107884440A (en) | 2017-11-28 | 2017-11-28 | A kind of flue gas dew point detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210525.8A CN107884440A (en) | 2017-11-28 | 2017-11-28 | A kind of flue gas dew point detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107884440A true CN107884440A (en) | 2018-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210525.8A Pending CN107884440A (en) | 2017-11-28 | 2017-11-28 | A kind of flue gas dew point detection means |
Country Status (1)
| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272986A (en) * | 1979-04-16 | 1981-06-16 | Harris Corporation | Method and means for measuring moisture content of hermetic semiconductor devices |
| CN101524617A (en) * | 2009-04-09 | 2009-09-09 | 陈明 | Method for removing moisture in gases by a Nafion tube |
| CN101561426A (en) * | 2009-05-22 | 2009-10-21 | 南京盛唐电力控制系统有限公司 | Humidity measuring method and measuring device used for CEMS system |
| CN201744280U (en) * | 2010-03-19 | 2011-02-16 | 张隆华 | High molecular hollow membrane compressed gas dehumidifier |
| CN104849314A (en) * | 2015-05-20 | 2015-08-19 | 西安热工研究院有限公司 | Dustproof system and method for detection probe of acid dew point instrument |
| CN105478015A (en) * | 2015-03-18 | 2016-04-13 | 华北电力大学 | Composite membrane assembly used for capturing water in flue gas and manufacture method thereof |
-
2017
- 2017-11-28 CN CN201711210525.8A patent/CN107884440A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272986A (en) * | 1979-04-16 | 1981-06-16 | Harris Corporation | Method and means for measuring moisture content of hermetic semiconductor devices |
| CN101524617A (en) * | 2009-04-09 | 2009-09-09 | 陈明 | Method for removing moisture in gases by a Nafion tube |
| CN101561426A (en) * | 2009-05-22 | 2009-10-21 | 南京盛唐电力控制系统有限公司 | Humidity measuring method and measuring device used for CEMS system |
| CN201744280U (en) * | 2010-03-19 | 2011-02-16 | 张隆华 | High molecular hollow membrane compressed gas dehumidifier |
| CN105478015A (en) * | 2015-03-18 | 2016-04-13 | 华北电力大学 | Composite membrane assembly used for capturing water in flue gas and manufacture method thereof |
| CN104849314A (en) * | 2015-05-20 | 2015-08-19 | 西安热工研究院有限公司 | Dustproof system and method for detection probe of acid dew point instrument |
Non-Patent Citations (1)
| Title |
|---|
| 彭曦等: "磺化聚芳醚砜与可溶性聚酰亚胺共混材料制备气体除湿膜", 《膜科学与技术》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180406 |