CN102103099A - Natural gas dew point instrument - Google Patents
Natural gas dew point instrument Download PDFInfo
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- CN102103099A CN102103099A CN2009102015458A CN200910201545A CN102103099A CN 102103099 A CN102103099 A CN 102103099A CN 2009102015458 A CN2009102015458 A CN 2009102015458A CN 200910201545 A CN200910201545 A CN 200910201545A CN 102103099 A CN102103099 A CN 102103099A
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- gas
- dew point
- point instrument
- sensor
- gas dew
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a natural gas dew point instrument, comprising a sampling chamber, a sensor and a display device, wherein the sensor is an alumina capacitance sensor comprising three parts, i.e. a pure aluminum inner core, an alumina thin film and a gold film; and the sampling chamber comprises a standard gas calibration system and a contaminant removal device which comprises a stainless fine particle filter and a coalification filter. The natural gas dew point instrument has the advantages of settling the problem of contaminant deposition after natural gas is dried and ensuring the accuracy of the measurement result of the instrument through periodical calibration.
Description
Technical field
The present invention relates to a kind of dew point hygrometer.
Background technology
Usually rock gas is rich in steam after underground come out, and needs to remove steam to prevent corrosive pipeline and to guarantee the steady quality of pipeline transmission rock gas.The general TRI ETHYLENE GLYCOL that all adopts removes moisture in the rock gas as hygroscopic material.But when the ethylene glycol absorption impurity when saturated, the hydro carbons carbon compound, sulfuretted hydrogen and other corrosive gass remain in the rock gas after drying always, these compositions and as the remaining in the instrument of the ethylene glycol of hygroscopic material all can influence sensor.Carbon compound will damage and covering sensor, delay the response time, if electrodeposition substances such as ethylene glycol on sensor, it will change response characteristic.Even before not damaging sensor, corrosive substance also will permanently change the response of sensor to humidity.
Summary of the invention
Purpose of the present invention addresses the above problem exactly, reduces after super-dry the deposition of all kinds of materials in the gas, prolongs instrument serviceable life, and keeps the accuracy of measurement data for a long time.For realizing this purpose, the invention provides a kind of gas dew point instrument, comprise sampler chamber, sensor and display device, described sensor is the aluminium oxide capacitive transducer, comprises the fine aluminium inner core, aluminum oxide film and golden film three parts; Described sampler chamber comprises contaminant removal device and gas calibration system.
Preferably, the contaminant removal device of described sampler chamber comprises stainless steel particulate filter and coalification filtrator.
Preferably, described stainless steel particulate filter, its thorax body and function glass fibre and epoxy resin manufacturing, the withstand voltage 260bars that reaches can filter 0.5 micron particulate.
Preferably, described coalification filtrator can filter suspended particle.
Preferably, described gas calibration system comprises that calibration cycle is provided with unit, gas holding bottle and gas path pipe.
The invention has the advantages that, solved the problem of pollutant sediment in the gas, and, guarantee apparatus measures result's accuracy by periodic calibration.
Description of drawings
Fig. 1 has showed structural drawing of the present invention.
Embodiment
Embodiment one
See also Fig. 1, Fig. 1 is a structural drawing of the present invention.The present invention includes sampler chamber, sensor and three parts of display unit, wherein sampler chamber comprises contaminant removal device and gas calibration system.Wherein contaminant removal device comprises stainless steel particulate filter and coalification filtrator, the thorax body and function glass fibre of stainless steel particulate filter and epoxy resin manufacturing, the withstand voltage 260bars that reaches can filter 0.5 micron particulate, but the suspended particle in the coalification filtrator filtering gas.Wherein the gas calibration system comprises that calibration cycle is provided with unit, gas holding bottle and three parts of gas path pipe.Sensor adopts the aluminium oxide capacitive transducer, comprises the fine aluminium inner core, and aluminum oxide film and golden film three parts are measured dew point by capacitance variations.
The invention has the advantages that, by contaminant removal device, can effectively avoid pollutant to deposit on sensor, the gas modular system be calibrated by regularly sensor being placed the gas environment simultaneously, guarantees apparatus measures result's accuracy.Wherein gas can be inert gases such as nitrogen.
A kind of gas dew point instrument provided by the invention, above embodiment are only in order to explanation, and unrestricted technical scheme of the present invention.Those of ordinary skill in the art is to be understood that: the present invention is made amendment or is equal to replacement, and do not break away from any modification or partial replacement of the spirit and scope of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. a gas dew point instrument comprises sampler chamber, sensor and display device, it is characterized in that:
Described sensor is the aluminium oxide capacitive transducer, comprises the fine aluminium inner core, aluminum oxide film and golden film three parts;
Described sampler chamber comprises contaminant removal device and gas calibration system.
2. gas dew point instrument as claimed in claim 1 is characterized in that, the contaminant removal device of described sampler chamber comprises stainless steel particulate filter and coalification filtrator.
3. gas dew point instrument as claimed in claim 2 is characterized in that, described stainless steel particulate filter, and its thorax body and function glass fibre and epoxy resin manufacturing, the withstand voltage 260bars that reaches can filter 0.5 micron particulate.
4. gas dew point instrument as claimed in claim 2 is characterized in that, described coalification filtrator can filter suspended particle.
5. gas dew point instrument as claimed in claim 1 is characterized in that, described gas calibration system comprises that calibration cycle is provided with unit, gas holding bottle and gas path pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102015458A CN102103099A (en) | 2009-12-21 | 2009-12-21 | Natural gas dew point instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102015458A CN102103099A (en) | 2009-12-21 | 2009-12-21 | Natural gas dew point instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102103099A true CN102103099A (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102015458A Pending CN102103099A (en) | 2009-12-21 | 2009-12-21 | Natural gas dew point instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102103099A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333218A (en) * | 2018-04-13 | 2018-07-27 | 福建双环能源科技股份有限公司 | A kind of online gas detection analysis and filtration treatment system |
| CN109358091A (en) * | 2018-09-25 | 2019-02-19 | 四川泰兰德科技有限公司 | A kind of α-Al2O3-SiO2 capacitance sensor dew point measurement device |
| CN112666217A (en) * | 2020-11-10 | 2021-04-16 | 西安交通大学 | Capacitive dew point monitoring device and method |
-
2009
- 2009-12-21 CN CN2009102015458A patent/CN102103099A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333218A (en) * | 2018-04-13 | 2018-07-27 | 福建双环能源科技股份有限公司 | A kind of online gas detection analysis and filtration treatment system |
| CN109358091A (en) * | 2018-09-25 | 2019-02-19 | 四川泰兰德科技有限公司 | A kind of α-Al2O3-SiO2 capacitance sensor dew point measurement device |
| CN112666217A (en) * | 2020-11-10 | 2021-04-16 | 西安交通大学 | Capacitive dew point monitoring device and method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110622 |