CN101927113B - Visual filter capable of automatically blowing gas and filtering method thereof - Google Patents

Visual filter capable of automatically blowing gas and filtering method thereof Download PDF

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Publication number
CN101927113B
CN101927113B CN 200910086921 CN200910086921A CN101927113B CN 101927113 B CN101927113 B CN 101927113B CN 200910086921 CN200910086921 CN 200910086921 CN 200910086921 A CN200910086921 A CN 200910086921A CN 101927113 B CN101927113 B CN 101927113B
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Prior art keywords
main cavity
filtration membrane
sealing ring
chamber
inner cap
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CN 200910086921
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CN101927113A (en
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盛志正
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BEIJING BAIF-MAIHAK ANALYTICAL INSTRUMENT Co Ltd
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BEIJING BAIF-MAIHAK ANALYTICAL INSTRUMENT Co Ltd
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Abstract

The invention discloses a visual filter capable of automatically blowing gas and a filtering method thereof. The filter comprises a filtering diaphragm, a filtration chamber and a sample gas chamber, wherein the filtering diaphragm is installed in a main cavity, the filtration chamber and the sample gas chamber are separated on the two sides of the filtering diaphragm; the edge of the filtering diaphragm is provided with a seal ring; one end of the main cavity is an opening; the middle of a bottom plate on the other end is inserted with an outlet nozzle communicated with the sample gas chamber; a branch block, the filtering diaphragm, an inner cover, a glass window and a junk ring are successively installed from the bottom plate of the main cavity to the opening in the main cavity; the sample gas chamber is surrounded by one side of the filtering diaphragm, the bottom plate of the main cavity and the branch block; and the filtration chamber is sounded by the other side of the filtering diaphragm, the inner cover and the glass window. The invention is suitable for the rear end of sample gas processing; and sample gas is used before entering an on-line analyzer to obtain the purposes of dedusting and dehydrating, and the sample gas obtains high quality approaching to that of the standard gas.

Description

A kind of visual filter capable of automatically blowing gas and filter method thereof
Technical field
The present invention relates to a kind of pneumatic filter that is used on the sample gas processing system, and the gas filtration method.
Background technology
Sample gas processing system is the core key technology of on-line analysis system, and every cover sample gas processing system is all indispensable, and " dedusting " and " dewatering " of appearance gas is two very difficult problems in kind gas disposal.
At present, the pneumatic filter that domestic sample gas processing system manufacturer is adopted, " dedusting " and " dewatering " effect is not ideal always, also is in low and middle-grade levels, mainly shows as:
1, filtering accuracy is not high.
2, dirt, water gather easy the obstruction.
3, antiseptic property is poor, is prone to reveal.
4, internal volume big (general tens of cubic centimetres), it is long to analyze lag time.
5, the filtration membrane pollution situation can't be observed, can not on-line maintenance.
Summary of the invention
The present invention provides a kind of visual filter capable of automatically blowing gas and filter method thereof, solve existing pneumatic filter " dedusting " and " dewatering " effect is bad, and filtration device structure is owed rational technical problem.
The technical solution adopted for the present invention to solve the technical problems is:
This visual filter capable of automatically blowing gas comprises the filtration membrane that is installed in the main cavity, and the filter chamber and appearance air chamber that are separated in the filtration membrane both sides, and edge is provided with sealing ring at filtration membrane, it is characterized in that:
Main cavity one end is uncovered, and the base plate middle part of the other end is inserted with the outlet that is connected with the appearance air chamber and connects mouth, and main cavity inside is equipped with a piece, filtration membrane, inner cap, glass vision panel and pressure ring successively by main cavity base plate to open-mouth;
The appearance air chamber is by filtration membrane one side and main cavity base plate and prop up a piece and surround and form;
The filter chamber is surrounded by filtration membrane opposite side and inner cap, glass vision panel and forms;
Filtration membrane is fixed in the main cavity; Installed piece between filtration membrane one side and the main cavity base plate, opposite side is locked by inner cap, in cover and have air-vent; Be provided with a kind air chamber sealing ring between filtration membrane edge and the inner cap; Glass vision panel is fixed in the main cavity as a sidewall of filter chamber, and by pressure ring and cover in the enclosing cover locking of main cavity open-mouth, and the main cavity sidewall being connected with at the place, filter chamber that inlet connects mouth and bypass connects mouth; Inlet connects mouth and bypass, and to connect mouth relative and establish, and be interconnected through the filter chamber.
Can be provided with filter chamber's sealing ring between said main cavity and the glass vision panel.
Can be provided with the glass vision panel sealing ring between said glass vision panel and the pressure ring.
Said piece is circular, is intervally distributed with fan-shaped flange in annulus edge.
Said appearance air chamber sealing ring, filter chamber's sealing ring and glass vision panel sealing ring can be viton seal ring or silica gel sealing ring.
Said inner cap is the annular slice structure, and the center has air-vent, and is connected with set lever, is connected with the main cavity inwall by screw thread around the inner cap.
A kind of filter method of using visual filter capable of automatically blowing gas; It is characterized in that: gas meets mouth entering filter chamber from the inlet of visual filter capable of automatically blowing gas earlier; Wherein sub-fraction gets into the appearance air chamber through the filter membrane sheet with clean state; And connect mouth by outlet and be delivered to the on-line analysis device and carry out Measurement and analysis, and most of gas is called by-pass, emits from the bypass outlet; In the filter process of gas, operating personnel observe the filtration membrane pollution situation at any time through the glass vision panel of filter chamber's sidewall, to change filtration membrane.
Beneficial effect of the present invention is following:
The present invention adopts main cavity, a piece, filtration membrane to form the appearance air chamber by the inner cap lock sealing, and seals with sealing ring.Wherein prop up piece in order to support filtration membrane, can prevent that filtration membrane receives the blastic deformation and damage diaphragm of air pressure.The structure convenient disassembly of inner cap can be with each parts locking around the appearance air chamber.Adopt filtration membrane, glass vision panel, sealing ring, pressure ring to form the filter chamber by the enclosing cover lock sealing.Visual glass vision panel can be observed the filtration membrane pollution situation so that in time change at any time as the sidewall of filter chamber.The inlet of filter chamber connects mouth and bypass and connects mouth and communicate and can realize from the purge function, but and on-line maintenance.
This visual gas washing body filter and traditional filter of boasting compares, and has the following advantages:
1, filtering accuracy is high, can reach 0.3um, and 99.99%, have the ability that stops thin liquid mist to pass through, can " dedusting " and " dewatering " be combined effectively.
2, antiseptic property is good, is difficult for revealing.
3, internal volume is little, and it is short to analyze lag time.
4, can observe the filtration membrane pollution situation at any time through glass vision panel, so that in time change.
5, have from the purge function, but and on-line maintenance.
The present invention is applicable to the rear end of kind gas disposal, and appearance gas uses before getting into the on-line analysis device, can reach the purpose of " dedusting " and " dewatering ", makes kind gas reach close to the standard gas high-quality.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of facing of a piece.
Fig. 3 is the side-looking structural representation of a piece.
Fig. 4 is the side-looking structural representation of inner cap.
Fig. 5 is the structural representation of facing of inner cap.
Reference numeral: 1-main cavity, 2-inner cap, 3-enclosing cover, 4-prop up piece, 5-filtration membrane, 6-appearance air chamber sealing ring, 7-filter chamber sealing ring, 8-glass vision panel, 9-glass vision panel sealing ring, 10-appearance air chamber, 11-pressure ring, 12-inlet and connect that mouth, 13-bypass connect mouth, the 14-outlet connects mouth, 15-filter chamber, 16-set lever, 17-air-vent, 18-screw thread.
The specific embodiment
Embodiment is referring to shown in Figure 1, and this visual filter capable of automatically blowing gas comprises the filtration membrane 5 that is installed in the main cavity 1, and the filter chamber and appearance air chamber that are separated in the filtration membrane both sides, and edge is provided with sealing ring at filtration membrane.
Main cavity 1 one ends are uncovered, and the base plate middle part of the other end is inserted with the outlet that is connected with appearance air chamber 10 and connects mouth 14, and main cavity inside is equipped with a piece 4, filtration membrane 5, inner cap 2, glass vision panel 8 and pressure ring 11 successively by main cavity base plate to open-mouth.
Appearance air chamber 10 is by filtration membrane one side and main cavity base plate and prop up a piece and surround and form.
Filter chamber 15 is surrounded and is formed by filtration membrane opposite side and inner cap 2, glass vision panel 8.
Filtration membrane 5 is fixed in the main cavity, has installed piece 4 between filtration membrane one side and the main cavity base plate, and opposite side is by inner cap 2 lockings; Be provided with a kind air chamber sealing ring 6 between filtration membrane edge and the inner cap; Glass vision panel is fixed in the main cavity as a sidewall of filter chamber, and by pressure ring 11 and cover in enclosing cover 3 locking of main cavity open-mouth, is provided with filter chamber's sealing ring 7 between main cavity 1 and the glass vision panel; Be provided with glass vision panel sealing ring 9 between said glass vision panel and the pressure ring; 15 places are connected with inlet and connect mouth 12 and connect mouth 13 with bypass the main cavity sidewall in the filter chamber, and inlet connects mouth 12 and connects mouth 13 with bypass and establish relatively, and 15 are interconnected through the filter chamber.
Said kind of air chamber sealing ring 6, filter chamber's sealing ring 7 and glass vision panel sealing ring 9 can adopt viton seal ring.
Referring to Fig. 2, shown in Figure 3, a piece 4 is circular, is intervally distributed with fan-shaped flange in annulus edge.
Referring to Fig. 4, shown in Figure 5, said inner cap 2 is the annular slice structure, and the center has air-vent 17, and is connected with set lever 16, is connected with the main cavity inwall by screw thread 18 around the inner cap.
The method of work of this visual filter capable of automatically blowing gas is following:
Gas meets mouth entering filter chamber from the inlet of visual filter capable of automatically blowing gas earlier; Wherein sub-fraction gets into appearance air chamber 10 through filter membrane sheet 5 with clean state; And connect mouth 14 by outlet and carry out Measurement and analysis with certain flow volume delivery to on-line analysis device; And most of gas (2-4 of entering appearance air chamber doubly) is called by-pass, then emits from the bypass outlet.Inlet gas has a spot of water also can emit with by-pass.In the filter process of gas, operating personnel observe the filtration membrane pollution situation at any time through the glass vision panel of filter chamber's sidewall, to change filtration membrane 5.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.

Claims (4)

1. a visual filter capable of automatically blowing gas comprises the filtration membrane (5) that is installed in the main cavity (1), and the filter chamber and appearance air chamber that are separated in the filtration membrane both sides, and edge is provided with sealing ring at filtration membrane, it is characterized in that:
Main cavity (1) one end is uncovered; The main cavity base plate middle part of the other end is inserted with the outlet that is connected with appearance air chamber (10) and connects mouth (14), and main cavity inside is equipped with a piece (4), filtration membrane (5), inner cap (2), glass vision panel (8) and pressure ring (11) successively by main cavity base plate to open-mouth;
Appearance air chamber (10) is by filtration membrane one side and main cavity base plate and prop up a piece and surround and form;
Filter chamber (15) is surrounded and is formed by filtration membrane opposite side and inner cap (2), glass vision panel (8);
Filtration membrane (5) is fixed in the main cavity; Installed piece (4) between filtration membrane one side and the main cavity base plate, opposite side is by inner cap (2) locking, in cover and have air-vent (17); Be provided with a kind air chamber sealing ring (6) between filtration membrane edge and the inner cap; Glass vision panel is fixed in the main cavity as a sidewall of filter chamber, and by pressure ring (11) and cover in enclosing cover (3) locking of main cavity open-mouth, the main cavity sidewall in the filter chamber (15) locate to be connected with that inlet connects mouth (12) and bypass connects mouth (13); Inlet connects mouth (12) and bypass, and to connect mouth (13) relative and establish, and (15) are interconnected through the filter chamber;
Be provided with filter chamber's sealing ring (7) between said main cavity (1) and the glass vision panel;
Be provided with glass vision panel sealing ring (9) between said glass vision panel and the pressure ring.
2. visual filter capable of automatically blowing gas according to claim 1 is characterized in that: said piece (4) is intervally distributed with fan-shaped flange for circular in annulus edge.
3. visual filter capable of automatically blowing gas according to claim 1 is characterized in that: said appearance air chamber sealing ring (6), filter chamber's sealing ring (7) and glass vision panel sealing ring (9) are viton seal ring or silica gel sealing ring.
4. visual filter capable of automatically blowing gas according to claim 1; It is characterized in that: said inner cap (2) is the annular slice structure; Said inner cap (2) middle part has air-vent (17), and is connected with set lever (16), is connected with the main cavity inwall by screw thread (18) around the inner cap.
CN 200910086921 2009-06-18 2009-06-18 Visual filter capable of automatically blowing gas and filtering method thereof Active CN101927113B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910086921 CN101927113B (en) 2009-06-18 2009-06-18 Visual filter capable of automatically blowing gas and filtering method thereof

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Application Number Priority Date Filing Date Title
CN 200910086921 CN101927113B (en) 2009-06-18 2009-06-18 Visual filter capable of automatically blowing gas and filtering method thereof

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CN101927113A CN101927113A (en) 2010-12-29
CN101927113B true CN101927113B (en) 2012-12-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108801711A (en) * 2017-05-05 2018-11-13 中国辐射防护研究院 A kind of aerosol sampler quickly connected

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6315821B1 (en) * 2000-05-03 2001-11-13 Hamilton Beach/Proctor-Silex, Inc. Air filtration device including filter change indicator
CN2571464Y (en) * 2002-07-17 2003-09-10 天津泰达新水源科技开发有限公司 Fluid blasket type filter
CN2799053Y (en) * 2005-06-15 2006-07-26 北京康斯特仪表科技有限公司 A gas filtering device
CN101455925A (en) * 2008-11-21 2009-06-17 薛文伟 Self-cleaning filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6315821B1 (en) * 2000-05-03 2001-11-13 Hamilton Beach/Proctor-Silex, Inc. Air filtration device including filter change indicator
CN2571464Y (en) * 2002-07-17 2003-09-10 天津泰达新水源科技开发有限公司 Fluid blasket type filter
CN2799053Y (en) * 2005-06-15 2006-07-26 北京康斯特仪表科技有限公司 A gas filtering device
CN101455925A (en) * 2008-11-21 2009-06-17 薛文伟 Self-cleaning filter

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