CN102489096A - Moisture filter device of standard humidity generator - Google Patents
Moisture filter device of standard humidity generator Download PDFInfo
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- CN102489096A CN102489096A CN2011103318563A CN201110331856A CN102489096A CN 102489096 A CN102489096 A CN 102489096A CN 2011103318563 A CN2011103318563 A CN 2011103318563A CN 201110331856 A CN201110331856 A CN 201110331856A CN 102489096 A CN102489096 A CN 102489096A
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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 of humidity standard generator is the key configuration of humidity standard generator system.
Background technology
Humidity standard generator moisture filter is the key configuration of humidity standard generator system, is serially connected with between moisture generating bottle and the calibrating chamber.Its effect is to take place not changing under the prerequisite of the humidity of gas, the fine droplet that air-flow possibly carried outside in the filtering generating bottle and be suspended in salt fog and other minute impurities particles in the gas.
Mostly novel humidity sensor 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 be except that having the constant humidity, also must be the clean gas that humidity sensor and instrument thereof is not had surface contamination, no chemical etching.
The humidity standard gas generator of our invention has adopted and before this diverse method of saturated salt solution method humidity generator and technology, and this filter is the proprietary configuration of humidity standard generator, also is unprecedented brand-new design.
Summary of the invention
The purpose of this invention is to provide a kind of humidity standard generator moisture filter, the present invention is the corollary apparatus of humidity standard gas generator.The moisture that flows out from the humidity generating bottle escape pipe of humidity standard gas generator may carry fine droplet; Small solid particle, this moisture filter be with physics and method chemistry effectively these drops of filtering and particle and can not change again the humidity of gas takes place.
Humidity standard generator moisture filter provided by the invention comprises filter gas cylinder body and the ring-type filter gas cylinder lid of filtering gas cylinder body top, on the sidewall that the filter gas cylinder covers an air admission hole is set; The upper end that moisture is crossed filter core is fastened in the filter gas cylinder lid through air inlet sealing bolt and fastening blind nut, and the main body that moisture is crossed filter core places in the filter gas cylinder body, and air inlet sealing bolt set inside is filtered the gas circuit that in-core portion is communicated with air admission hole and moisture that the filter gas cylinder covers on the sidewall; Moisture is crossed between filter core main body and the filter gas cylinder body and is formed the buffering air storage chamber; The lower end of filter gas cylinder body is provided with a venthole, and it is tubular that moisture is crossed filter core, and the bottom that the tubular moisture is crossed filter core is provided with an overflow valve; The bosom that moisture is crossed filter core is provided with two filter chamber communicating valves at interval and makes the tubular moisture filter in-core portion to form three filter chambers; Three filter chambers from top to bottom are followed successively by drop filter chamber, salt fog filter chamber and micronic dust filter chamber, are filled with quartz sand in the drop filter chamber, the fine droplet in the air-flow; Can clash into quartz sand, attached to hydrophilic quartz sand surface.Be filled with iron filings in the salt fog filter chamber, the acid ion in the salt fog has certain water and ability, 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 and the reaction of little salt drop are filtered for chemical method.
The particle size of described quartz sand is 3 ~ 5mm.
Described fibrous filter membrane filter core is a superfine polypropylene fibrous filter membrane filter core, 10 ~ 50 microns in 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 be with the method for physics, chemistry reliably dispel be suspended in various harmful liquid state, the solid impurity particulate in the moisture take place; Can not change simultaneously the humidity that gas takes place in institute again, with assurance stablized, the gas of pure, constant humidity.
Advantage of the present invention is:
One, from top to bottom different principle and the three-stage filtration device of function guaranteed to take place the pure of moisture.
Two, the good filtering efficiency of special-purpose filtering material in the three-stage filtration device.
Three, the form of filtering flask, structure.
The structure of this device integral form, material and function design are initiative.
Description of drawings
Fig. 1 is humidity standard generator moisture filter apparatus configuration figure.
Among the 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; Humidity standard generator moisture filter provided by the invention comprises filter gas cylinder body 13 and the ring-type filter gas cylinder lid 5 of filtering gas cylinder body top, on the sidewall that the filter gas cylinder covers an air admission hole 4 is set; The upper end that moisture is crossed filter core is fastened in the filter gas cylinder lid through air inlet sealing bolt 2 and fastening blind nut 1; The main body that moisture is crossed filter core places in the filter gas cylinder body, and air inlet sealing bolt set inside is filtered the gas circuit that in-core portion is communicated with air admission hole and moisture that the filter gas cylinder covers on the sidewall, and moisture is crossed between filter core main body and the filter gas cylinder body and formed buffering air storage chamber 11; The lower end of filter gas cylinder body is provided with a venthole 14; It is tubular that moisture is crossed filter core, and the bottom that the tubular moisture is crossed filter core is provided with an overflow valve 12, and the bosom that moisture is crossed filter core is provided with two filter chamber communicating valves 7 and 9 at interval; Make the tubular moisture filter in-core portion 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 filling in the drop filter chamber 6 is pure quartz sand, and particle size is 3 ~ 5mm.The quartz sand chemical property is stable, solid, non-hygroscopic, and surperficial tool hydrophily, vapour lock are little, will pass the unordered quartz sand slit of careless and sloppy small complications by the air-flow of up-downgoing, and the fine droplet that air-flow possibly carry can collide quartz sand, is trapped on the quartz sand surface.
The filtering material of filling in the salt fog filter chamber 8 is iron filings.The selected saturated salt solution of generating bottle; Mostly be stable non-volatile neutral inorganic solution; Through saturated salt solution, the inorganic salts molecule can not overflow air-flow with the microbubble form, 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, and pollution in various degree still possibly take place).Moisture is through the salt fog filter chamber, and the acid ion in the salt fog has certain water and ability, 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 filling in the micronic dust filter chamber 10 is the fibrous filter membrane filter core.Described fibrous filter membrane filter core is a superfine polypropylene fibrous filter membrane filter core, 10 ~ 50 microns in 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.The hydrone diameter is maximum in the working gas, is about 0.0004 micron, gas takes place can smooth and easyly pass through filter core.
Claims (3)
1. humidity standard generator moisture filter; 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 the filter gas cylinder lid through air inlet sealing bolt and fastening blind nut; The main body that moisture is crossed filter core places in the filter gas cylinder body, and air inlet sealing bolt set inside is filtered the gas circuit that in-core portion is communicated with air admission hole and moisture that the filter gas cylinder covers on the sidewall, and moisture is crossed between filter core main body and the filter gas cylinder body and formed the buffering air storage chamber; The lower end of filter gas cylinder body is provided with a venthole; It is tubular that moisture is crossed filter core, and the bottom that the tubular moisture is crossed filter core is provided with an overflow valve, and the bosom that moisture is crossed filter core is provided with two filter chamber communicating valves at interval and makes the tubular moisture filter in-core portion to form three filter chambers; Three filter chambers from top to bottom are followed successively by 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.
2. device according to claim 1, the particle size that it is characterized in that described quartz sand is 3 ~ 5mm.
3. device according to claim 1 and 2 is characterized in that described fibrous filter membrane filter core is a superfine polypropylene fibrous filter membrane filter core, 10 ~ 50 microns in aperture, and the porosity of filter membrane is 60 ~ 80%.
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 |
Applications Claiming Priority (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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| CN102489096A true CN102489096A (en) | 2012-06-13 |
| CN102489096B CN102489096B (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110331856 Active CN102489096B (en) | 2011-10-27 | 2011-10-27 | Moisture filter device of standard humidity generator |
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Citations (5)
| 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 |
| KR20100112295A (en) * | 2009-04-09 | 2010-10-19 | (주)지비엠 아이엔씨 | The humidity producer of 2-way type |
| 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 |
-
2011
- 2011-10-27 CN CN 201110331856 patent/CN102489096B/en active Active
Patent Citations (5)
| 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 |
| KR20100112295A (en) * | 2009-04-09 | 2010-10-19 | (주)지비엠 아이엔씨 | The humidity producer of 2-way type |
| 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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| CN102489096B (en) | 2013-12-18 |
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