CN107843694A - Multi-stage cascade air-channel system with filtering function - Google Patents
Multi-stage cascade air-channel system with filtering function Download PDFInfo
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- CN107843694A CN107843694A CN201711045916.9A CN201711045916A CN107843694A CN 107843694 A CN107843694 A CN 107843694A CN 201711045916 A CN201711045916 A CN 201711045916A CN 107843694 A CN107843694 A CN 107843694A
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- Prior art keywords
- air
- channel system
- air chamber
- filtering function
- stage cascade
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of multi-stage cascade air-channel system with filtering function, includes filter, aspiration pump and the cascade air chamber group formed of being connected by multiple air chambers successively along sample flow of air direction；The sensor for detection is provided with single air chamber, the air inlet of the multi-cascade air-channel system and gas outlet are located at filter and tail end air chamber respectively；By setting the air chamber of multiple series connection in the rear end of aspiration pump, and each air chamber is provided with the sensor for detecting heterogeneity and concentration, and the convenient monitoring gaseous species of extension on demand are compact-sized, are easy to a variety of occasions and support the use, applied widely.
Description
Technical field
The present invention relates to field of gas detection, and in particular to a kind of multi-stage cascade air-channel system with filtering function.
Background technology
The places such as coal mine gas pipeline extraction concentration monitor, municipal sewage system, septic tank, methane-generating pit, destructor plant, need
Monitor the hazardous gases such as poisonous and harmful, flammable class, such as methane, carbon monoxide, carbon dioxide, hydrogen sulfide.The present invention solves
The suspended particulate such as dust, steam, aerosol enters measurement air chamber in extraction-type pipeline, causes measurement error change even to fail greatly difficult
Topic.
Therefore, be solve problem above, it is necessary to which a kind of multi-stage cascade air-channel system with filtering function, can conveniently be pressed
Monitoring gaseous species, and convenient dismounting parts need to be extended, it is compact-sized, it is easy to a variety of occasions and supports the use.
The content of the invention
In view of this, the purpose of the present invention is the defects of overcoming in the prior art, there is provided has the multistage level of filtering function
Join air-channel system, can.
The multi-stage cascade air-channel system with filtering function of the present invention, include filtering dress successively along sample flow of air direction
Put, aspiration pump and the cascade air chamber group formed of being connected by multiple air chambers；The sensor for detection is provided with single air chamber,
The air inlet of the multi-cascade air-channel system and gas outlet are located at filter and tail end air chamber respectively.
Further, the filter includes the front and rear coarse filter and fine filter set, is set in the coarse filter
The SiC microporous filter elements for coarse filtration are equipped with, the PTFE perforated membranes for secondary filter are provided with the fine filter
Piece.
Further, the aspiration pump is additionally provided with the displacement gas outlet for forming Rapid replacement loop.
Further, the cylindrical shell of the single air chamber including top end opening, the sensor that is arranged in cylindrical shell and
For blocking top end opening and being fixed the gland of sensor, the gland is detachably secured to cylindrical shell top, institute
State and air chamber inner chamber is formed between sensor and cylindrical shell inner chamber bottom surface, the air chamber inner chamber is provided with and communicated with suction nozzle and outlet
Mouth.
Further, the air chamber inner chamber is cylindrical cavity, and the suction nozzle and outlet nozzle are that central axis breaks with cylindrical cavity
The tangent straight length of circle that face is formed, the straight length are located at the bottom of cylindrical cavity.
Further, in addition to for controlling pumping pump work and handling the controller of each sensor gathered data, the control
The output end of device processed and the control signal of aspiration pump connect, and the output end of each sensor and the input of controller connect.
Further, the controller is additionally provided with remote communication module, and the remote communication module is used for remote control control
Device processed.
Further, the coarse filter and fine filter are provided with dewatering outlet.
Further, the cylindrical shell bottom is fixedly installed air chamber mounting bracket, and the air chamber mounting bracket is installed for L-shaped
Plate, the side plate of L-shaped installing plate attaches with cylindrical shell bottom surface to be fixed, and another side plate is provided with connecting hole.
The beneficial effects of the invention are as follows：A kind of multi-stage cascade air-channel system with filtering function disclosed by the invention, lead to
Cross and the air chamber of multiple series connection is set in the rear end of aspiration pump, and each air chamber is provided with for detecting heterogeneity and concentration
Sensor, the convenient monitoring gaseous species of extension on demand are compact-sized, are easy to a variety of occasions and support the use, applied widely.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of air chamber in the present invention；
Fig. 3 is air chamber partial sectional view in the present invention.
Embodiment
Fig. 1 is the structural representation of the present invention, and Fig. 2 is the structural representation of air chamber in the present invention, and Fig. 3 is gas in the present invention
Room partial sectional view, as illustrated, the multi-stage cascade air-channel system with filtering function in the present embodiment, along sample flow of air side
To including filter, aspiration pump 1 and the cascade air chamber group formed of being connected by multiple air chambers 2 successively；It is respectively provided with single air chamber 2
There is the sensor 3 for detection, the air inlet of the multi-cascade air-channel system and gas outlet are located at filter and tail end respectively
Air chamber；The filter is filtered for test sample gas to be checked, impurity Interference Detection precision is avoided, by aspiration pump 1
Rear end sets the air chamber of multiple series connection, and each air chamber is provided with the sensor 3 for detecting heterogeneity and concentration, convenient
Extension monitoring gaseous species on demand, it is compact-sized, it is easy to a variety of occasions and supports the use, it is applied widely.
In the present embodiment, the filter includes the front and rear coarse filter 4 and fine filter 5 set, the coarse filtration
The SiC microporous filter elements for coarse filtration are provided with device 4, are provided with the fine filter 5 for secondary filter
PTFE porous membranes；The sintered microporous filter elements of SiC.The dust 99% of dust-filtering precision sample gas filtering accuracy >=0.3 μm,；
Realize dust-filtering coarse filtration after gas condenses；Not only accurate dedusting can also retain PTFE porous membranes and prevention is suspended in sample
Fine liquid mist in gas is by and using high-efficiency polymerization filtration membrane, diaphragm has micron filter precision, dust-filtering precision
>=0.05 μm of dust 99.9%；Membrane surface has hydrophobic, fuel shedding quality, filter liquid state and fine powder through special ferment treatment
Dirt water is automatically drained out through self-cleaning membrane surface, and it is easy to maintenance that filter can quickly change filtration membrane online.
In the present embodiment, the aspiration pump 1 is additionally provided with the displacement gas outlet 6 for forming Rapid replacement loop；Quickly
Displacement loop is 3 formulas, described constant by coarse filter and fine filter total gas couette, by adjusting to multistage level
To flow (usual 300ml/min~600ml/min) is provided, remaining is arranged connection gas circuit flow with gas by Rapid replacement loop more
Put to safety zone；It, which is acted on, shunts sample by bypass sample line, and guarantee is transported to on-line analysis device air chamber inner chamber gas
Stream flow meets monitoring requirements, can Rapid replacement coarse filter and smart mistake compared with the low speeds flow sample line of single line stream
Filter " dead volume " interior gas, reduces total transportation lag time.
In the present embodiment, the single air chamber includes the cylindrical shell 7 of top end opening, the biography being arranged in cylindrical shell 7
Sensor 3 and for blocking top end opening and being fixed the gland 8 of sensor 3, the gland 8 is detachably secured to cylindrical shell
The top of body 7, air chamber inner chamber is formed between sensor 3 and cylindrical shell 7 inner chamber bottom surface, the air chamber inner chamber is provided with and communicated with
Suction nozzle 9 and outlet nozzle 10；The through hole that is passed through for data cable and close with gland packing box is provided among the gland 8
Envelope, is provided with sealing ring, the fixation of gland 8 can be by being threadedly coupled with cylindrical shell 7 between the gland 8 and cylindrical shell 7
Annular gland 11 fix.
In the present embodiment, the air chamber inner chamber is cylindrical cavity 12, the suction nozzle 9 and outlet nozzle 10 be central axis with
The tangent straight length of circle that cylindrical cavity section is formed, the straight length are located at the bottom of cylindrical cavity；In cylindrical cavity bottom and valve
Hole is tangent, evaporated condensation water aggregation dead angle.
In the present embodiment, in addition to for controlling aspiration pump 1 to work and handle the controller of each gathered data of sensor 3,
The output end of the controller is connected with the control signal of aspiration pump 1, the output end of each sensor 3 and the input of controller
Connection；The controller can be existing 51 single-chip microcomputer, realize Automated condtrol aspiration pump 1 and data acquisition.
In the present embodiment, the controller is additionally provided with remote communication module, and the remote communication module is used to remotely control
Controller processed；The remote communication module includes long distance wireless sending and receiving module, realizes man-machine interaction and telecommunication, has
GPRS data interaction, remote control, the miscellaneous function such as power-off, blower fan on the spot is controlled on the spot.
In the present embodiment, the coarse filter 4 and fine filter 5 are provided with dewatering outlet 13；As illustrated, it is convenient to clean
Filter inner chamber.
In the present embodiment, the bottom of cylindrical shell 7 is fixedly installed air chamber mounting bracket 14, and the air chamber mounting bracket is L
Shape installing plate, the side plate of L-shaped installing plate attaches with the bottom surface of cylindrical shell 7 to be fixed, and another side plate is provided with connecting hole；Structure letter
It is single, easy for installation, fixing-stable.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (9)
- A kind of 1. multi-stage cascade air-channel system with filtering function, it is characterised in that：Included successively along sample flow of air direction Filter device, aspiration pump and the cascade air chamber group formed of being connected by multiple air chambers；The biography for detection is provided with single air chamber Sensor, the air inlet of the multi-cascade air-channel system and gas outlet are located at filter and tail end air chamber respectively.
- 2. the multi-stage cascade air-channel system according to claim 1 with filtering function, it is characterised in that：The filtering dress Coarse filter and fine filter including front and rear setting are put, the SiC micropore mistakes for coarse filtration are provided with the coarse filter Filtering element, the PTFE porous membranes for secondary filter are provided with the fine filter.
- 3. the multi-stage cascade air-channel system according to claim 1 with filtering function, it is characterised in that：The aspiration pump It is additionally provided with the displacement gas outlet for forming Rapid replacement loop.
- 4. the multi-stage cascade air-channel system according to claim 3 with filtering function, it is characterised in that：The single gas The cylindrical shell of room including top end opening, the sensor being arranged in cylindrical shell and for blocking top end opening and being fixed The gland of sensor, the gland are detachably secured to cylindrical shell top, the sensor and cylindrical shell inner chamber bottom surface Between form air chamber inner chamber, the air chamber inner chamber is provided with and communicated with suction nozzle and outlet nozzle.
- 5. the multi-stage cascade air-channel system according to claim 4 with filtering function, it is characterised in that：In the air chamber Chamber is cylindrical cavity, the tangent straight length of the circle that the suction nozzle and outlet nozzle, which are central axis, to be formed with cylindrical cavity section, The straight length is located at the bottom of cylindrical cavity.
- 6. the multi-stage cascade air-channel system according to claim 1 with filtering function, it is characterised in that：Also include being used for Control pumping pump work and the controller for handling each sensor gathered data, the output end of the controller and the control of aspiration pump Input connects, and the output end of each sensor and the input of controller connect.
- 7. the multi-stage cascade air-channel system according to claim 6 with filtering function, it is characterised in that：The controller Remote communication module is additionally provided with, the remote communication module is used for remote control controller.
- 8. the multi-stage cascade air-channel system according to claim 2 with filtering function, it is characterised in that：The coarse filtration Device and fine filter are provided with dewatering outlet.
- 9. the multi-stage cascade air-channel system according to claim 4 with filtering function, it is characterised in that：The cylindrical shell Body bottom is fixedly installed air chamber mounting bracket, and the air chamber mounting bracket is L-shaped installing plate, the side plate and cylinder of L-shaped installing plate Housing bottom surface, which attaches, fixes, and another side plate is provided with connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045916.9A CN107843694A (en) | 2017-10-31 | 2017-10-31 | Multi-stage cascade air-channel system with filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045916.9A CN107843694A (en) | 2017-10-31 | 2017-10-31 | Multi-stage cascade air-channel system with filtering function |
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| Publication Number | Publication Date |
|---|---|
| CN107843694A true CN107843694A (en) | 2018-03-27 |
Family
ID=61681081
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045916.9A Pending CN107843694A (en) | 2017-10-31 | 2017-10-31 | Multi-stage cascade air-channel system with filtering function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221028A (en) * | 2019-06-20 | 2019-09-10 | 应急管理部四川消防研究所 | Gas sensor arrangement and connection method applied to gas analyzer |
| CN111313129A (en) * | 2018-12-11 | 2020-06-19 | 中国科学院大连化学物理研究所 | Alkali-removing and hydrogen-eliminating film, preparation thereof and aluminum oxide battery comprising alkali-removing and hydrogen-eliminating film |
| CN111773832A (en) * | 2020-07-14 | 2020-10-16 | 中煤科工集团重庆研究院有限公司 | Gas pretreatment system with anti-turbulence and calibration functions |
| CN111795871A (en) * | 2020-07-14 | 2020-10-20 | 中煤科工集团重庆研究院有限公司 | Automatic coal mine gas sampling device and sampling time setting method |
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| CN1866027A (en) * | 2006-05-18 | 2006-11-22 | 南京卓成自动化设备有限公司 | Integrated gas online detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111313129A (en) * | 2018-12-11 | 2020-06-19 | 中国科学院大连化学物理研究所 | Alkali-removing and hydrogen-eliminating film, preparation thereof and aluminum oxide battery comprising alkali-removing and hydrogen-eliminating film |
| CN111313129B (en) * | 2018-12-11 | 2021-05-11 | 中国科学院大连化学物理研究所 | Alkali-removing and hydrogen-eliminating film, preparation thereof and aluminum oxide battery comprising alkali-removing and hydrogen-eliminating film |
| CN110221028A (en) * | 2019-06-20 | 2019-09-10 | 应急管理部四川消防研究所 | Gas sensor arrangement and connection method applied to gas analyzer |
| CN111773832A (en) * | 2020-07-14 | 2020-10-16 | 中煤科工集团重庆研究院有限公司 | Gas pretreatment system with anti-turbulence and calibration functions |
| CN111795871A (en) * | 2020-07-14 | 2020-10-20 | 中煤科工集团重庆研究院有限公司 | Automatic coal mine gas sampling device and sampling time setting method |
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Application publication date: 20180327 |