CN201392287Y - Gas detection device response air chamber - Google Patents
Gas detection device response air chamber Download PDFInfo
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- CN201392287Y CN201392287Y CN 200920126404 CN200920126404U CN201392287Y CN 201392287 Y CN201392287 Y CN 201392287Y CN 200920126404 CN200920126404 CN 200920126404 CN 200920126404 U CN200920126404 U CN 200920126404U CN 201392287 Y CN201392287 Y CN 201392287Y
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- air chamber
- air
- gas
- filter cup
- detector
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Abstract
The utility model discloses a gas detection device response air chamber, which comprises a gas inlet and outlet device, an air chamber casing, a detector, an air chamber imbedding gland and a detection cavity, wherein the air chamber imbedding gland is connected on the upper end of the air chamber casing by a holding screw to form the detection cavity, the detector is mounted in the detection cavity, the gas inlet and outlet device is arranged on the lower end of the detection cavity, an upper center hole of the air chamber imbedding gland is provided with imbedding glue provided with a cable, the middle portions of the detection cavity and the gas inlet and outlet device are provided with air chamber chucks whose two disks are mutually attached together, the hollow portion forms an exchange cavity, the middle lower portion of the exchange cavity is provided with a filter cup, the lower surface of the filter cup is attached to the surface of the air chamber chuck, the lateral wall is pressed on the inner lateral wall of the air chamber casing, a drainage film is arranged between the filter cup and the detector, and the lateral wall of the drainage film is pressed on the inner lateral wall of the air chamber casing. The gas detection device response air chamber has wide acclimatization, excellent water filtration and dedusting effect and long element service span, and can be matched with various gas detection elements.
Description
Technical field:
The utility model relates to a kind of measurement mechanism, especially a kind of integrated air chamber of pipeline gas pick-up unit.
Technical background:
Tradition is used for pipeline gas pick-up unit structural shape mainly by following several: based on pitot tube principle plug in construction air chamber, probe direct-insert and pipeline upstream and downstream elementary errors laminated structure sampling air chamber.Detect 2 the differential pressures samplings in hole and static pressure detection hole based on pitot tube principle plug in construction air chamber according to dynamic pressure, because it is very little that dynamic pressure detects 2 differential pressures in hole and static pressure detection hole, differential pressure is not enough to fully displacement probe air chamber gas in low flow velocity pipeline testing process, cause the interior actual concentrations of actual detected numerical value and pipeline to differ far away, after the response, do not reach the requirement of real-time monitoring at all.Be easier to stop up thieff hatch at detection pipeline gas humidity than big and dust concentration ratio of higher time, not too be adapted to high steam and high dust atmosphere.Probe direct-insert structure is simpler, probe directly stretches into pipe interior and causes probe very easily to be subjected to the pipeline environmental impact, can't satisfy high steam and high dust atmosphere and use, but because simple in structure, purer or be used for environmental classes such as tunnel and detect more employing in detected gas.Pipeline upstream and downstream elementary errors laminated structure sampling air chamber is flexible for installation, detectable concentration can reflect truly that pipeline detection point gas concentration changes, but traditional approach lacks containing filtrations such as solid particle polluter, mist of oil and steam mist, influences gas concentration accuracy of detection and element serviceable life.
More than several pick-up unit structural shapes analysis as can be seen: traditional pipeline gas pick-up unit exist conform relatively poor; The drainage weak effect, defectives such as element weak point in serviceable life.
The utility model content:
The purpose of this utility model provides a kind of gas detection response air chamber, this device is applicable to gas discharge in mine pipeline, petrochemical complex etc., contains the air chamber structure pattern of environment mal-condition using gases detecting sensors such as solid particle polluter, mist of oil and steam mist in the detected gas.Therefore it is wider to conform, the drainage good dedusting effect, and the element long service life also can connect all gases detecting element, and sample mode adopts side Tube Drain detection mode, produces the differential pressure sampling by process structure.
For achieving the above object, the technical solution of the utility model is: adopt a kind of gas-detecting device response air chamber, comprise turnover device of air, air chamber shell, detector, air chamber embedding gland and test chamber, wherein air chamber embedding gland is installed in air chamber shell upper end formation test chamber with holding screw, detector is housed in the test chamber, the turnover device of air is positioned at the below of air chamber shell, and it is characterized in that: there is the casting glue of tape cable in the described air chamber embedding of A. gland center upper portion hole; B. the air chamber chuck that has two cards to fit together mutually between described test chamber and the described turnover device of air, this air chamber chuck has the ring dress of groove to connect clip soon with inwall to be connected with gland nut, because connecing clip soon loads and unloads easily, therefore can dismantle gas detection response air chamber fast, be convenient to the fast assembling-disassembling of detector; The hollow space of C. described air chamber chuck constitutes the exchange cavity; D. be provided with filter cup in described air chamber shell lower end, this filter cup lower surface and air chamber chuck upper surface are fitted, this filter cup and air chamber shell interference fit, this filter cup is capillary filtration unit or the sintered powder porous metallurgy that highly dense high fine fibre forms, and can realize therefore that solid particle polluter, mist of oil and steam mist are pounced on to obtain; Be provided with hydrophobic membrane between filter cup and described detector, this hydrophobic membrane and air chamber shell interference fit have spacing between described filter cup and the hydrophobic membrane; E. on the sidewall of the air chamber shell between described hydrophobic membrane and the detector, be provided with demarcation/exhaust nozzle; F. described turnover device of air is made up of axial component and the horizontal projection that is positioned at the axial component middle part, the horizontal projection of described turnover device of air sets out gas port, the top of axial component is provided with the gas flow guiding awl, this gas flow guiding awl upper end is stretched in the described exchange cavity, cavity around the described gas flow guiding awl communicates with the gas outlet, described air intake opening passes described gas flow guiding awl for turnover device of air axial central through hole, this air intake opening.
Be provided with rubber gasket between dish and the lower wall on the described air chamber chuck, this air chamber chuck has the annular of groove to connect clip soon with inwall to be connected with gland nut.
Described casting glue is inverse-T-shaped, and material is an epoxy resin, and sealing property is better.
Described hydrophobic membrane is a micropore PTEE breathable films, and is therefore corrosion-resistant, high temperature resistant, can bearing certain pressure and do not damage, play the effect of hydrophobic, air-permeability;
Effect of the present utility model is: by two-stage filtration mechanism, so the filtering accuracy height, it is effective that hot and humid sample gas detects drainage, overcome the traditional measurement mode and be subjected to water vapor condensation to produce the shortcoming of big measuring error; The device cavity volume is little, and it is short to analyze retardation time; Automatically differential pressure sampling, draining automatically, to compare maintenance little with the conventional manual artificial drainage; The all steel shell does not produce static, and treating apparatus is a passive device, belongs to essential safety.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Synoptic diagram when Fig. 2 does not work for connecing clip 13 and gland nut 14 among Fig. 1 soon;
Fig. 3 connects clip 13 cut-open views soon among Fig. 2;
Synoptic diagram when Fig. 4 works for connecing clip 13 and gland nut 14 among Fig. 1 soon.
Meaning of each numbering is in the above-mentioned accompanying drawing: 1. air intake opening, 2. gas flow guiding awl, 3. air chamber chuck, 4. filter cup, 5. hydrophobic membrane, 6. air chamber shell, 7. detector, 8. air chamber embedding gland, 9. holding screw, 10. demarcation/exhaust nozzle, 11. rubber gasket, 12. gas outlets, 13. connect clip soon, 14. gland nut, 15. casting glues, 16. cables, 17. the exchange cavity, 18. test chambers, 19. turnover device of air.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
See also Fig. 1: gas-detecting device response air chamber comprises turnover device of air 19, air chamber shell 6, detector 7, air chamber embedding gland 8 and test chamber 18, wherein air chamber embedding gland 8 usefulness holding screws 9 are installed in air chamber shell 6 upper ends formation test chamber 18, detector 7 is housed in the test chamber 18, turnover device of air 19 is positioned at the below of air chamber shell 6, and it is characterized in that: the described air chamber embedding of A. gland 8 center upper portion holes have tape cable 16 to be inverse-T-shaped casting glue 15; B. the air chamber chuck 3 that has two cards to fit together mutually between described test chamber 18 and the described turnover device of air 19; C. described air chamber chuck 3 middle parts are provided with through hole, and the hollow space of fitting constitutes exchange cavity 17 mutually; D. be provided with filter cup 4 in described air chamber shell 6 lower ends, these filter cup 4 lower surfaces and air chamber chuck 3 upper surfaces are fitted, this filter cup 4 and air chamber shell 6 interference fit, between filter cup 4 and described detector 7, hydrophobic membrane 5 is arranged, this hydrophobic membrane 5 and air chamber shell 6 interference fit have spacing between described filter cup 4 and the hydrophobic membrane 5; E. be provided with on the sidewall of the air chamber shell 6 between described hydrophobic membrane 5 and detector 7 and the extraneous demarcation/exhaust nozzle 10 that communicates; F. described turnover device of air 19 is made up of axial component and the horizontal projection that is positioned at the axial component middle part, described turnover device of air 19 horizontal projections set out gas port 12, the top of axial component is provided with gas flow guiding awl 2, this gas flow guiding is bored 2 upper ends and is stretched in the described exchange cavity 17, cavity around the described gas flow guiding awl 2 communicates with gas outlet 12, described air intake opening 1 passes described gas flow guiding awl 2 for turnover device of air 19 axial central through hole, this air intake opening 1.
By Fig. 1～Fig. 4 as can be seen: be provided with rubber gasket 11 between dish and the lower wall on the described air chamber chuck 3, these air chamber chuck 3 usefulness inwalls have the ring dress of groove to connect clip 13 soon to be connected with gland nut 14.
Implementation procedure of the present utility model is such: pipeline gas to be measured enters exchange cavity 17 from bottom air inlet 1, and the gas after filtering then enters inverting chamber body 17 after by filter cup 4; Air chamber exchange cavity 17 communicates with detector 7, can enter detector 7 by hydrophobic membrane 5 rapidly at diffusion therapeutic method to keep the adverse qi flowing downward body.Gas to be measured contains big water gaging and solid impurity particle thereof usually, by making purer gas enter detector 7 after the most of solid impurity particle filtration in filter cup 4 backs, realize gas-water separation under the effect of gas flow guiding awl 2 and hydrophobic membrane 5, aqueous water is bored 2 outer wall gaps by gas flow guiding and is entered gas outlet 12 effluent gases outdoor under action of gravity.In use can realize exempting to dismantle calibration sensor by opening demarcation/exhaust nozzle 10.Also can connect clip 13 soon, the air chamber part is separated with air chamber chuck 3, realize the laboratory sensor demarcation by special use ventilation mouth by opening.As casting glue 15, leading in/out of cable 16 in particular cases can realize the requirement of air chamber flame proof to air chamber embedding gland 8 by modified epoxy.
Claims (4)
1, a kind of gas-detecting device response air chamber, comprise turnover device of air (19), air chamber shell (6), detector (7), air chamber embedding gland (8) and test chamber (18), wherein air chamber embedding gland (8) is installed in air chamber shell (6) upper end formation test chamber (18) with holding screw (9), detector (7) is housed in the test chamber (18), turnover device of air (19) is positioned at the below of air chamber shell (6), and it is characterized in that: there is the casting glue (15) of tape cable (16) in the described air chamber embedding of A. gland (8) center upper portion hole; B. the air chamber chuck (3) that has two cards to fit together mutually between described test chamber (18) and the described turnover device of air (19); The hollow space of C. described air chamber chuck (3) constitutes exchange cavity (17); D. be provided with filter cup (4) in described air chamber shell (6) lower end, this filter cup (4) lower surface and air chamber chuck (3) upper surface are fitted, this filter cup (4) and air chamber shell (6) interference fit, between filter cup (4) and described detector (7), be provided with hydrophobic membrane (5), this hydrophobic membrane (5) and air chamber shell (6) interference fit have spacing between described filter cup (4) and the hydrophobic membrane (5); E. on the sidewall of the air chamber shell (6) between described hydrophobic membrane (5) and the detector (7), be provided with demarcation/exhaust nozzle (10); F. described turnover device of air (19) is made up of axial component and the horizontal projection that is positioned at the axial component middle part, described turnover device of air (19) laterally projection sets out gas port (12), the top of axial component is provided with gas flow guiding awl (2), this gas flow guiding awl (2) upper end is stretched in the described exchange cavity (17), described gas flow guiding awl (2) cavity on every side communicates with gas outlet (12), described air intake opening (1) is turnover device of air (19) axial central through hole, and this air intake opening (1) passes described gas flow guiding awl (2).
2, gas-detecting device response air chamber according to claim 1, it is characterized in that: described air chamber chuck (3) is gone up between dish and the lower wall and is provided with rubber gasket (11), and this air chamber chuck (3) has the annular of groove to connect clip (13) soon with inwall to be connected with gland nut (14).
3, gas-detecting device response air chamber according to claim 1, it is characterized in that: described casting glue (15) is inverse-T-shaped, and material is an epoxy resin.
4, gas-detecting device response air chamber according to claim 1, it is characterized in that: described hydrophobic membrane (5) is micropore PTEE breathable films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920126404 CN201392287Y (en) | 2009-02-23 | 2009-02-23 | Gas detection device response air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920126404 CN201392287Y (en) | 2009-02-23 | 2009-02-23 | Gas detection device response air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392287Y true CN201392287Y (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920126404 Expired - Fee Related CN201392287Y (en) | 2009-02-23 | 2009-02-23 | Gas detection device response air chamber |
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| CN (1) | CN201392287Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913563A (en) * | 2014-04-09 | 2014-07-09 | 上海岗崎控制仪表有限公司 | Three-phase biomass sensor and filtration and turbulence method thereof |
| CN104596973A (en) * | 2015-01-27 | 2015-05-06 | 重庆蓝图信息产业股份有限公司 | Gas sensor and method for detecting concentration of methane gas in septic tank by using gas sensor |
| CN104950083A (en) * | 2015-06-28 | 2015-09-30 | 哈尔滨东方报警设备开发有限公司 | Simple gas detector calibration nozzle |
| CN105092321A (en) * | 2014-05-22 | 2015-11-25 | 中国石油化工股份有限公司 | Passive gas collection apparatus |
| CN105136876A (en) * | 2015-08-06 | 2015-12-09 | 南京英格玛仪器技术有限公司 | P2O5 minim moisture sensor capable of rapidly measuring |
| CN105548021A (en) * | 2015-12-21 | 2016-05-04 | 河北工程大学 | Gas sampling device |
| CN107238580A (en) * | 2017-06-06 | 2017-10-10 | 中煤科工集团重庆研究院有限公司 | Self-calibration gas chamber and distributed optical fiber methane sensing system |
| CN107843694A (en) * | 2017-10-31 | 2018-03-27 | 中煤科工集团重庆研究院有限公司 | Multistage cascade gas circuit system with filtering capability |
-
2009
- 2009-02-23 CN CN 200920126404 patent/CN201392287Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913563A (en) * | 2014-04-09 | 2014-07-09 | 上海岗崎控制仪表有限公司 | Three-phase biomass sensor and filtration and turbulence method thereof |
| CN103913563B (en) * | 2014-04-09 | 2015-12-30 | 上海岗崎控制仪表有限公司 | A kind of three-phase biologic matter sensor and filtering and turbulent method |
| CN105092321A (en) * | 2014-05-22 | 2015-11-25 | 中国石油化工股份有限公司 | Passive gas collection apparatus |
| CN105092321B (en) * | 2014-05-22 | 2017-12-12 | 中国石油化工股份有限公司 | A kind of passive type gas collecting apparatus |
| CN104596973A (en) * | 2015-01-27 | 2015-05-06 | 重庆蓝图信息产业股份有限公司 | Gas sensor and method for detecting concentration of methane gas in septic tank by using gas sensor |
| CN104596973B (en) * | 2015-01-27 | 2017-04-26 | 重庆蓝图信息产业股份有限公司 | Gas sensor and method for detecting concentration of methane gas in septic tank by using gas sensor |
| CN104950083A (en) * | 2015-06-28 | 2015-09-30 | 哈尔滨东方报警设备开发有限公司 | Simple gas detector calibration nozzle |
| CN105136876A (en) * | 2015-08-06 | 2015-12-09 | 南京英格玛仪器技术有限公司 | P2O5 minim moisture sensor capable of rapidly measuring |
| CN105136876B (en) * | 2015-08-06 | 2017-07-11 | 南京英格玛仪器技术有限公司 | A kind of P that can quickly measure2O5Micro- water sensor |
| CN105548021A (en) * | 2015-12-21 | 2016-05-04 | 河北工程大学 | Gas sampling device |
| CN107238580A (en) * | 2017-06-06 | 2017-10-10 | 中煤科工集团重庆研究院有限公司 | Self-calibration gas chamber and distributed optical fiber methane sensing system |
| CN107843694A (en) * | 2017-10-31 | 2018-03-27 | 中煤科工集团重庆研究院有限公司 | Multistage cascade gas circuit system with filtering capability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RE Free format text: FORMER NAME: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTITUTE Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee after: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Institute of Coal Science Research Institute |
|
| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CCTEG CHONGQING RESEARCH INSTITUTE Co.,Ltd. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20160223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |