CN102489096B - Moisture filter device of standard humidity generator - Google Patents
Moisture filter device of standard humidity generator Download PDFInfo
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- CN102489096B CN102489096B CN 201110331856 CN201110331856A CN102489096B CN 102489096 B CN102489096 B CN 102489096B CN 201110331856 CN201110331856 CN 201110331856 CN 201110331856 A CN201110331856 A CN 201110331856A CN 102489096 B CN102489096 B CN 102489096B
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Abstract
A moisture filter device of a standard humidity generator comprises a gas filter bottle and a gas filter bottle cap. A gas inlet is arranged on the side wall of the gas filter bottle cap, the upper end of a moisture filter element is fastened in the gas filter bottle cap through a gas inlet sealing bolt and a fastening screw cap, a moisture filter element body is disposed in the filter gas bottle, a buffer gas storage chamber is formed between the moisture filter element body and the gas filter bottle, a gas outlet is arranged at the lower end of the gas filter bottle, the moisture filter element is cylindrical, a gas spill valve is arranged at the bottom of the cylindrical moisture gas filter element, and two filter chamber communicating valves are arranged in the middle of the moisture filter element at an interval so that three filter chambers (liquid drop filter chamber, salt mist filter chamber and dust filter chamber) are formed inside the moisture filter element. The design principle of the moisture filter device is that various harmful liquid-state or solid-state granular impurities suspending in moisture can be removed reliably by physical and chemical methods, and humidity of generated gas cannot be changed so that generation of stable, pure and constant-humidity gas is guaranteed.
Description
Technical field
The invention belongs to non electrical quantity reference instrument technical field, particularly a kind of moisture filter device of standard humidity generator, be the key configuration of standard humidity generator system.
Background technology
The key configuration that moisture filter device of standard humidity generator is the standard humidity generator system, be serially connected with between moisture generating bottle and calibrating chamber.Its effect is under the prerequisite of the humidity that does not change occurred gas, the fine droplet that in the filtering generating bottle, air-flow may be carried outside and be suspended in salt fog in gas and other minute impurities particles.
The Novel humidity sensor mostly is resistor-type or capacitive based humidity electrical measurement device, though device itself has stronger antifouling property, but as the humidity standard gas generator, its working gas, except constant humidity will be arranged, must be also without surface contamination, without the clean gas of chemical etching to humidity sensor and instrument thereof.
The humidity standard gas generator of our invention has adopted and the diverse method of saturated salt solution method humidity generator and technology before this, and this filter is the proprietary configuration of standard humidity generator, is also unprecedented brand-new design.
Summary of the invention
The purpose of this invention is to provide a kind of moisture filter device of standard humidity generator, the present invention is the corollary apparatus of humidity standard gas generator.The moisture flowed out from the humidity generating bottle escape pipe of humidity standard gas generator may carry fine droplet, small solid particle, this moisture filter device is with physics and chemical method these drops of filtering and particle and can not change again the humidity of occurred gas effectively.
Moisture filter device of standard humidity generator provided by the invention, the ring-type filter gas cylinder lid that comprises filter gas cylinder body and filter gas cylinder body top, on the sidewall of filter gas cylinder lid, an air admission hole is set, the upper end that moisture is crossed filter core is fastened in filter gas cylinder lid by air inlet sealing bolt and fastening screw lid, the main body that moisture is crossed filter core is placed in filter gas cylinder body, the inner setting with air admission hole and moisture on filter gas cylinder lid sidewall of air inlet sealing bolt filtered the gas circuit that core inner is communicated with, moisture is crossed between filter core main body and filter gas cylinder body and is formed the buffering air storage chamber, the lower end of filter gas cylinder body arranges a venthole, it is tubular that moisture is crossed filter core, the bottom that the tubular moisture is crossed filter core arranges an overflow valve, spaced two the filter chamber communicating valves of bosom that moisture is crossed filter core make the tubular moisture filter three filter chambers of core inner formation, three filter chambers from top to bottom are followed successively by the drop filter chamber, salt fog filter chamber and micronic dust filter chamber, be filled with quartz sand in the drop filter chamber, fine droplet in air-flow, can clash into quartz sand, be attached to hydrophilic quartz sand surface.Be filled with iron filings in the salt fog filter chamber, the acid ion in salt fog has certain water and energy, can be adsorbed on the iron filings surface.Be filled with the fibrous filter membrane filter core in the micronic dust filter chamber, the filtering solia particle.Quartz sand and polyester fiber film are physical methods of filtration, and iron filings react with micro-salt drop for the chemical method filtration.
The particle size of described quartz sand is 3 ~ 5mm.
Described fibrous filter membrane filter core is superfine polypropylene fibrous filter membrane filter core, 10 ~ 50 microns, aperture, and the porosity of filter membrane is 60 ~ 80%.
advantage of the present invention and good effect:
The design principle of filter of the present invention is reliably to dispel by the method for physics, chemistry various harmful liquid state, the solid impurity particulate be suspended in occurred moisture, can not change again the humidity of occurred gas simultaneously, with assurance stablized, the gas of pure, constant humidity.
Advantage of the present invention is:
One, different principle from top to bottom and the three-level filter device of function, guaranteed to occur the pure of moisture.
Two, the good filtering efficiency of special-purpose filtering material in three-level filter device.
Three, the form of filtering flask, structure.
Structure, material and the Functional Design of this device integral form are pioneering.
The accompanying drawing explanation
Fig. 1 is the moisture filter device of standard humidity generator structure chart.
In figure, 1 fastening blind nut, 2 air inlet sealing bolts, 3 O-ring seals, 4 air admission holes, 5 filter gas cylinder lids, 6 drop filter chambers, 7 filter chamber communicating valves, 8 salt fog filter chambers, 9 filter chamber communicating valves, 10 micronic dust filter chambers, 11 buffering air storage chambers, 12 overflow valves, 13 filter gas cylinder bodies, 14 ventholes.
The specific embodiment
embodiment 1:
As shown in Figure 1, moisture filter device of standard humidity generator provided by the invention, the ring-type filter gas cylinder lid 5 that comprises filter gas cylinder body 13 and filter gas cylinder body top, on the sidewall of filter gas cylinder lid, an air admission hole 4 is set, the upper end that moisture is crossed filter core is fastened in filter gas cylinder lid by air inlet sealing bolt 2 and fastening blind nut 1, the main body that moisture is crossed filter core is placed in filter gas cylinder body, the inner setting with air admission hole and moisture on filter gas cylinder lid sidewall of air inlet sealing bolt filtered the gas circuit that core inner is communicated with, moisture is crossed between filter core main body and filter gas cylinder body and is formed buffering air storage chamber 11, the lower end of filter gas cylinder body arranges a venthole 14, it is tubular that moisture is crossed filter core, the bottom that the tubular moisture is crossed filter core arranges an overflow valve 12, moisture is crossed spaced two the filter chamber communicating valves 7 of bosom and 9 of filter core, make the tubular moisture filter core inner and form three filter chambers, three filter chambers from top to bottom are followed successively by drop filter chamber 6, salt fog filter chamber 8 and micronic dust filter chamber 10.
The filtering material of drop filter chamber 6 interior fillings is pure quartz sand, and particle size is 3 ~ 5mm.Quartz sand stable chemical nature, solid, non-hygroscopic, surperficial tool hydrophily, vapour lock are little, by the air-flow of up-downgoing, will pass the unordered quartz sand gap of careless and sloppy small complications, and the fine droplet that air-flow may carry can collide quartz sand, is trapped on quartz sand surface.
The filtering material of salt fog filter chamber 8 interior fillings is iron filings.The selected saturated salt solution of generating bottle, mostly be stable non-volatile neutral inorganic solution, air-flow passes through saturated salt solution with the microbubble form, the inorganic salts molecule can not overflow, but air-flow still can be carried salt fog (the saturated salt solution droplet of minute quantity outside, humidity sensor is immersed in wherein for a long time, still pollution in various degree may occur).Moisture is through the salt fog filter chamber, and the acid ion in salt fog has certain water and energy, can be adsorbed on the iron filings surface, from moisture, dispels, and can avoid the pollution of working gas to humidity sensor.
The filtering material of micronic dust filter chamber 10 interior fillings is the fibrous filter membrane filter core.Described fibrous filter membrane filter core is superfine polypropylene fibrous filter membrane filter core, 10 ~ 50 microns, aperture, effectively suspension liquid, the solid particle of remnants in the filtering moisture.The porosity of filter membrane is 60 ~ 80%, and vapour lock is very little.Hydrone diameter maximum in working gas, be about 0.0004 micron, gas occurs and can smooth and easyly pass through filter core.
Claims (2)
1. a moisture filter device of standard humidity generator, it is characterized in that, this device comprises the ring-type filter gas cylinder lid of filter gas cylinder body and filter gas cylinder body top, on the sidewall of filter gas cylinder lid, an air admission hole is set, the upper end that moisture is crossed filter core is fastened in filter gas cylinder lid by air inlet sealing bolt and fastening screw lid, the main body that moisture is crossed filter core is placed in filter gas cylinder body, the inner setting with air admission hole and moisture on filter gas cylinder lid sidewall of air inlet sealing bolt filtered the gas circuit that core inner is communicated with, moisture is crossed between filter core main body and filter gas cylinder body and is formed the buffering air storage chamber, the lower end of filter gas cylinder body arranges a venthole, it is tubular that moisture is crossed filter core, the bottom that the tubular moisture is crossed filter core arranges an overflow valve, spaced two the filter chamber communicating valves of bosom that moisture is crossed filter core make the tubular moisture filter three filter chambers of core inner formation, three filter chambers from top to bottom are followed successively by the drop filter chamber, salt fog filter chamber and micronic dust filter chamber, be filled with quartz sand in the drop filter chamber, be filled with iron filings in the salt fog filter chamber, be filled with the fibrous filter membrane filter core in the micronic dust filter chamber, described fibrous filter membrane filter core is superfine polypropylene fibrous filter membrane filter core, 10～50 microns, aperture, the porosity of filter membrane is 60～80%.
2. device according to claim 1, the particle size that it is characterized in that described quartz sand is 3～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110331856 CN102489096B (en) | 2011-10-27 | 2011-10-27 | Moisture filter device of standard humidity generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110331856 CN102489096B (en) | 2011-10-27 | 2011-10-27 | Moisture filter device of standard humidity generator |
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| CN102489096A CN102489096A (en) | 2012-06-13 |
| CN102489096B true CN102489096B (en) | 2013-12-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026687A (en) * | 1975-02-21 | 1977-05-31 | Wolfgang Berz | Dust separator arrangement |
| CN2291660Y (en) * | 1996-09-25 | 1998-09-16 | 电子工业部第四十九研究所 | Temp.-regulating saturated salt humidity generator |
| CN201427008Y (en) * | 2009-07-02 | 2010-03-24 | 河北省电力研究院 | Sulfur hexafluoride gas moisture measurement filtering device |
| CN201744250U (en) * | 2010-05-28 | 2011-02-16 | 海南金盘电气有限公司 | System with functions of salt mist removal, ventilation and filtering |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100112295A (en) * | 2009-04-09 | 2010-10-19 | (주)지비엠 아이엔씨 | The humidity producer of 2-way type |
-
2011
- 2011-10-27 CN CN 201110331856 patent/CN102489096B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026687A (en) * | 1975-02-21 | 1977-05-31 | Wolfgang Berz | Dust separator arrangement |
| CN2291660Y (en) * | 1996-09-25 | 1998-09-16 | 电子工业部第四十九研究所 | Temp.-regulating saturated salt humidity generator |
| CN201427008Y (en) * | 2009-07-02 | 2010-03-24 | 河北省电力研究院 | Sulfur hexafluoride gas moisture measurement filtering device |
| CN201744250U (en) * | 2010-05-28 | 2011-02-16 | 海南金盘电气有限公司 | System with functions of salt mist removal, ventilation and filtering |
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| Publication number | Publication date |
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| CN102489096A (en) | 2012-06-13 |
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