CN108132336A - A kind of explosion-proof LEL detecting systems - Google Patents
A kind of explosion-proof LEL detecting systems Download PDFInfo
- Publication number
- CN108132336A CN108132336A CN201810079153.8A CN201810079153A CN108132336A CN 108132336 A CN108132336 A CN 108132336A CN 201810079153 A CN201810079153 A CN 201810079153A CN 108132336 A CN108132336 A CN 108132336A
- Authority
- CN
- China
- Prior art keywords
- detector
- lel
- drying tube
- explosion
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention overcomes the deficiencies of the prior art, and provides a kind of LEL in-line analyzers, are suitable for Pipe installing；In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of LEL in-line analyzers, including filter, drying tube, air pump and detector, one end of the filter is connect with inlet end, the other end of the filter is connected on drying tube, the drying tube is connected with detector by pipeline, and the air pump is arranged on the pipeline between drying tube and detector, LEL sensors built in the detector, the detector end is connected with outlet side, and spark arrester is both provided on the pipeline of the inlet end and outlet side；It the composite can be widely applied to VOCs and administer field.
Description
Technical field
A kind of explosion-proof LEL detecting systems of the present invention, belong to VOCs Treatment process field.
Background technology
In recent years, as the atmosphere pollution such as the development of scientific and technological level and the raising of living standards of the people, haze have become
The problem of facing for world's every country.And it is exactly VOCs to cause the arch-criminal of air environmental pollution, VOCs is to wave
Hair property organic compound（volatile organic compounds）English abbreviation, industrial stationary source is primary discharge source.
The VOCs that the abatement equipments such as present RTO, DTO, CRO will be widely used in industry-by-industry administers field, their major function
It is exactly burning or high-temperature catalytic, by chemistry or biochemical reaction, VOCs is made to be transformed into CO2And water, meet the requirement of environmental protection.
Due to containing various flammable explosive gas ingredients in VOCs gases, so LEL detection and analysis, LEL need to be carried out to it
Refer to lower explosion limit, the abbreviation of Lower Explosive Limit, as soon as it is the technical terms for fuel gas,
It is the minimum concentration that fuel gas meets the explosion of open fire kind in air.If LEL is exceeded will to occur explosion accident, serious threat
The person and equipment safety.
Invention content
The invention overcomes the deficiencies of the prior art, and provides a kind of explosion-proof LEL detecting systems, are suitable for pipeline peace
Dress.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of explosion-proof LEL detecting systems, including
Filter, drying tube, air pump and detector, one end of the filter are connect with inlet end, and the other end of the filter connects
It is connected on drying tube, the drying tube is connected with detector by pipeline, and the air pump is arranged between drying tube and detector
Pipeline on, LEL sensors built in the detector, the detector end is connected with outlet side, the inlet end and outlet
Spark arrester is both provided on the pipeline at end.
Homogenizing plate built in the detector, the homogenizing plate detect air-flow for buffering.
The air pump is constant displacement pump, and constant displacement pump is brushless suitable tune motor diaphragm air pump.
The drying tube is the silica dehydrator pipe of 450ml.
The filter is straight-through type vacuum filter.
The present invention has an advantageous effect in that compared with prior art：The present invention by increasing gas pretreatment system, gram
The shortcomings of VOCs gas componants are complicated, and dust is big, washiness has been taken, has been suitable for Pipe installing.
Description of the drawings
The present invention is described further below in conjunction with the accompanying drawings.
Fig. 1 is the structural diagram of the present invention.
In figure：1 it is filter, 2 be drying tube, 3 be air pump, 4 be detector, 5 be homogenizing plate, 6 is spark arrester.
Specific embodiment
As shown in Figure 1, a kind of explosion-proof LEL detecting systems of the present invention, including filter 1, drying tube 2, air pump 3 and detector
4, one end of the filter 1 is connect with inlet end, and the other end of the filter 1 is connected on drying tube 2, the drying tube
2 are connected with detector 4 by pipeline, and the air pump 3 is arranged on the pipeline between drying tube 2 and detector 4, the detector
LEL sensors built in 4,4 end of detector connect with outlet side, are both provided on the pipeline of the inlet end and outlet side
Spark arrester 6.
Homogenizing plate 5 built in the detector 4, the homogenizing plate 5 detect air-flow for buffering.
The air pump 3 is constant displacement pump, and constant displacement pump is brushless suitable tune motor diaphragm air pump.
The drying tube 2 is the silica dehydrator pipe of 450ml.
The filter 1 is straight-through type vacuum filter.
The present invention selects the vacuum filter of dust removal and filtration selection through type, and pressure drop is small, leakage-preventing, 5 μm of filtering accuracy,
Velocity of liquid assets 20L/min；The silica dehydrator pipe of 450ml is selected, dehydrating effect is apparent, is not involved in detected gas reaction, can weigh
It is multiple to utilize.Silica gel absorption water saturation state can be shown with color, and maintenance personnel is reminded to replace drier.Constant displacement pump selects extra long life
Brushless suitable tune motor miniature diaphragm air pump.Material selection polytetrafluoroethylene (PTFE), FFPM or other materials combination, suitable for neutral and rotten
Corrosion gas or liquid.Flow 0.5-3.2L/min can adjust, so as to meet detection of the LEL sensors to gas with various ingredient
It is required that.
The present invention is process using clean metallic 304S, does not influence detected gas ingredient, special construction, front end into
Gas, using built-in homogenizing plate, buffering detection air-flow ensures accuracy of detection, rear end exhaust, the unimpeded logical circulation road of guarantee detection air-flow
Diameter.
The present invention is clamped using stainless steel anti-explosion cable, is matched using II CT5 anti-explosion box bodies of Exd, cable incoming-outgoing wire
There is DC power supply, complete control and protection to LEL sensors and constant displacement pump, and realize the signal acquisition to LEL sensors, packet
Include analog signals all the way and three-way switch amount signal.
The present invention is both provided with spark arrester in inlet end and outlet side, and spark arrester is by by housing and metal mesh filter core two
It is grouped as.Housing should have enough intensity, to bear the surge that explosion generates.Filter core is the main of prevention flame propagation
Component is the safety device for preventing inflammable gas propagation of flame, so as to ensure safety, reaches requirement of explosion proof.
The present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-described embodiment, at this
In the knowledge that field those of ordinary skill has, various changes can also be made under the premise of present inventive concept is not departed from
Change.
Claims (5)
1. a kind of explosion-proof LEL detecting systems, it is characterised in that：Including filter（1）, drying tube（2）, air pump（3）And detector
（4）, the filter（1）One end connect with inlet end, the filter（1）The other end be connected to drying tube（2）On, institute
State drying tube（2）And detector（4）It is connected by pipeline, the air pump（3）It is arranged on drying tube（2）And detector（4）Between
Pipeline on, the detector（4）Built-in LEL sensors, the detector（4）End is connected with outlet side, the inlet end
Spark arrester is both provided with on the pipeline of outlet side（6）.
2. a kind of explosion-proof LEL detecting systems according to claim 1, it is characterised in that：The detector（4）It is built-in to flow
Plate（5）, the homogenizing plate（5）Air-flow is detected for buffering.
3. a kind of explosion-proof LEL detecting systems according to claim 1, it is characterised in that：The air pump（3）For constant displacement pump,
And constant displacement pump is brushless suitable tune motor diaphragm air pump.
4. a kind of explosion-proof LEL detecting systems according to claim 1, it is characterised in that：The drying tube（2）For 450ml
Silica dehydrator pipe.
5. a kind of explosion-proof LEL detecting systems according to claim 1, it is characterised in that：The filter（1）For through type
Vacuum filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079153.8A CN108132336A (en) | 2018-01-26 | 2018-01-26 | A kind of explosion-proof LEL detecting systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079153.8A CN108132336A (en) | 2018-01-26 | 2018-01-26 | A kind of explosion-proof LEL detecting systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108132336A true CN108132336A (en) | 2018-06-08 |
Family
ID=62400221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810079153.8A Pending CN108132336A (en) | 2018-01-26 | 2018-01-26 | A kind of explosion-proof LEL detecting systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108132336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115685301A (en) * | 2023-01-04 | 2023-02-03 | 中创智科(绵阳)科技有限公司 | Explosion-proof tritium concentration measuring instrument |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900716A (en) * | 2010-06-04 | 2010-12-01 | 嘉兴学院 | Online analysis system and method for monitoring harmful gases in livestock and poultry farm |
| CN202133647U (en) * | 2011-05-03 | 2012-02-01 | 上海锦宜仪器有限公司 | Flame-proof type multi-gas detection alarm system for high-temperature environment |
| CN102489088A (en) * | 2011-12-14 | 2012-06-13 | 河南汉威电子股份有限公司 | Internal and external gas filtering devices and gas detecting device |
| CN102507868A (en) * | 2011-10-26 | 2012-06-20 | 宇星科技发展(深圳)有限公司 | Sewer gas security detection device |
| CN104267146A (en) * | 2014-08-28 | 2015-01-07 | 西红柿科技（武汉）有限公司 | Gas monitoring instrument and system |
| CN104569038A (en) * | 2013-10-11 | 2015-04-29 | 上海锦宜仪器有限公司 | Device and method for combustible gas detection |
| CN205484289U (en) * | 2016-04-14 | 2016-08-17 | 天津渤海职业技术学院 | Chemical industry harmful gas detection device |
| CN106645003A (en) * | 2016-09-30 | 2017-05-10 | 长沙开元仪器股份有限公司 | Infrared sulfur tester capable of avoiding air chamber pollution |
| CN106645579A (en) * | 2016-12-24 | 2017-05-10 | 天津达元吉科技有限公司 | Fire combustion smoke concentration detection system |
| CN106872519A (en) * | 2017-04-18 | 2017-06-20 | 国网安徽省电力公司电力科学研究院 | The flue gas of cone calorimetry is pre-processed, collected and on-line analysis device |
| CN206557181U (en) * | 2016-12-24 | 2017-10-13 | 天津达元吉科技有限公司 | A kind of burning gases concentration detection system |
| CN206670682U (en) * | 2017-03-31 | 2017-11-24 | 北京燕山和成节能环保工程技术有限公司 | A kind of gas controlling device |
-
2018
- 2018-01-26 CN CN201810079153.8A patent/CN108132336A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900716A (en) * | 2010-06-04 | 2010-12-01 | 嘉兴学院 | Online analysis system and method for monitoring harmful gases in livestock and poultry farm |
| CN202133647U (en) * | 2011-05-03 | 2012-02-01 | 上海锦宜仪器有限公司 | Flame-proof type multi-gas detection alarm system for high-temperature environment |
| CN102507868A (en) * | 2011-10-26 | 2012-06-20 | 宇星科技发展(深圳)有限公司 | Sewer gas security detection device |
| CN102489088A (en) * | 2011-12-14 | 2012-06-13 | 河南汉威电子股份有限公司 | Internal and external gas filtering devices and gas detecting device |
| CN104569038A (en) * | 2013-10-11 | 2015-04-29 | 上海锦宜仪器有限公司 | Device and method for combustible gas detection |
| CN104267146A (en) * | 2014-08-28 | 2015-01-07 | 西红柿科技（武汉）有限公司 | Gas monitoring instrument and system |
| CN205484289U (en) * | 2016-04-14 | 2016-08-17 | 天津渤海职业技术学院 | Chemical industry harmful gas detection device |
| CN106645003A (en) * | 2016-09-30 | 2017-05-10 | 长沙开元仪器股份有限公司 | Infrared sulfur tester capable of avoiding air chamber pollution |
| CN106645579A (en) * | 2016-12-24 | 2017-05-10 | 天津达元吉科技有限公司 | Fire combustion smoke concentration detection system |
| CN206557181U (en) * | 2016-12-24 | 2017-10-13 | 天津达元吉科技有限公司 | A kind of burning gases concentration detection system |
| CN206670682U (en) * | 2017-03-31 | 2017-11-24 | 北京燕山和成节能环保工程技术有限公司 | A kind of gas controlling device |
| CN106872519A (en) * | 2017-04-18 | 2017-06-20 | 国网安徽省电力公司电力科学研究院 | The flue gas of cone calorimetry is pre-processed, collected and on-line analysis device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115685301A (en) * | 2023-01-04 | 2023-02-03 | 中创智科(绵阳)科技有限公司 | Explosion-proof tritium concentration measuring instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203941102U (en) | A kind of solid waste incineration is processed on-line analysis system | |
| CN209117529U (en) | A kind of VOCs on-line monitoring system | |
| CN105289132B (en) | A kind of modularization emission-control equipment | |
| CN211263186U (en) | Detection system for concentration of hydrogen sulfide and sulfur dioxide gas | |
| CN112067758A (en) | Motor vehicle tail gas detection device | |
| CN210487693U (en) | Positive pressure type pollution source VOC on-line monitoring system | |
| CN209092900U (en) | Organic exhaust gas automated processing system | |
| CN108132336A (en) | A kind of explosion-proof LEL detecting systems | |
| CN111157477A (en) | Total hydrocarbon concentration detector and total hydrocarbon concentration detection method | |
| CN212409341U (en) | Laboratory oven VOC processing apparatus | |
| CN206492383U (en) | VOCs treatment intelligence control system | |
| CN209355433U (en) | A kind of experiment indoor harmful gas Detection & Controling device | |
| US8518166B2 (en) | Air filtering system capable of enhancing inspection convenience | |
| CN107843694A (en) | Multistage cascade gas circuit system with filtering capability | |
| CN208224190U (en) | A kind of LEL in-line analyzer | |
| CN210514197U (en) | Factory boundary VOCs on-line monitoring system suitable for multiple working conditions | |
| CN219475109U (en) | Flue gas sampling testing arrangement | |
| CN107456836A (en) | A kind of adsoption catalysis integration waste gas pollution control and treatment equipment | |
| CN208082144U (en) | Pneumatic membrane building exhaust apparatus | |
| CN103868893B (en) | Argon gas ambient dual gas supply air-channel system for elementary analysis | |
| CN208626946U (en) | A kind of activated carbon adsorption device | |
| US3901672A (en) | Filter system for halogen gas detector | |
| CN110208321A (en) | A kind of combustible gas explosion limit analysis system | |
| CN209549168U (en) | A kind of paint shop's air cleaning system | |
| CN210487695U (en) | Factory boundary low-concentration benzene series on-line monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |