CN206671291U - A kind of gas-detecting device - Google Patents
A kind of gas-detecting device Download PDFInfo
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- CN206671291U CN206671291U CN201720328548.8U CN201720328548U CN206671291U CN 206671291 U CN206671291 U CN 206671291U CN 201720328548 U CN201720328548 U CN 201720328548U CN 206671291 U CN206671291 U CN 206671291U
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- gas
- collection chamber
- detecting device
- bypass conduit
- feeding pipe
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Abstract
The utility model provides a kind of gas-detecting device, including detector body, discharge and sampling surge chamber, and the first collection chamber and the second collection chamber are provided with the discharge；Sampling surge chamber outlet side is connected with appendix；Appendix is provided with current divider, and two outlets of this current divider are connected with the air inlet of the first collection chamber and the air inlet of the second collection chamber respectively；The gas outlet of first collection chamber and the gas outlet of the second collection chamber are connected by sample feeding pipe respectively at the first detector body and the second detector body, and the first bypass conduit in parallel therewith is additionally provided with sample feeding pipe, and the first bypass conduit is provided with absorber；Bleeding point is respectively equipped with first collection chamber and the second collection chamber.The utility model to the gas of same time can sample simultaneously, and the gas of sampling can be tested and analyzed under same sample rate simultaneously, improve the detectability to sorbing material absorption property, and simple to operate, practical.
Description
Technical field
It the utility model is related to gas detection and analysis technical field, particularly a kind of gas-detecting device.
Background technology
Volatile organic matter is a class of pollutant of generally existing in common indoor and outdoor air.It is a kind of organic compound
The general designation of thing, their evaporation rate is big at normal temperatures, volatile.So-called volatile organic matter, English name volatile
VOC is defined as any to participate in atmospheric photochemistry by organic compounds (VOCs), U.S.'s ASTM D3960-98 standards
The organic compound of reaction.Definition of the World Health Organization in 1989 to TOVC (TVOC) is that fusing point is low
In room temperature and the general name of VOC of the boiling point between 50~260 DEG C.VOCs main components are broadly divided into 9
Class：Aromatic hydrocarbon, aliphatic saturated hydrocarbon, unsaturated aliphatic hydrocarbon/cycloalkane, terpenes, aliphatic alcohols, aldehyde/ketone, fatty acid, fat
Class and halogenated hydrocarbon, Dutch scholar Edwards etc. 2001 are in the organic pollution to Helsinki room and workplace
323 kinds of VOCs are detected in investigation altogether.VOCs is petrochemical industry, pharmaceuticals industry, printing industry, coating dress
The major pollutants adornd in the industries such as industry, surface anticorrosion, communications and transportation discharge waste gas.Polluted for VOCs existing for current China
Problem, numerous scholars are studied.Result of study is shown：The height and pollutant kind of VOCs concentration have directly with place
Relation.VOCs concentration in bus, taxi apparently higher than other places, such as the ground such as bar, and such place
VOCs is mainly based on aromatic hydrocarbon.Volatile Organic Compounds in Indoor Air either all compares from its composition, source and toxicity
More complicated, downward trend is gradually presented with the extension of finishing time in VOCs concentration.It also found simultaneously, by the interior of finishing
In air, recall rate highest be the low molecule such as the benzene homologues such as benzene, toluene and ethyl acetate, butyl acetate lipid material and
The low molecule such as cyclohexanone, valeral aldoketones and pinene vinyl.Therefore, the preventing and treating of VOCs pollutions is extremely urgent.
From processing mode point, VOCs pollution control technologies can be divided into recovery technology and destruction technology.For higher concentration (>
5000mg/m3) or the pollutant with recovery value costly typically use recovery technology, main recovery technology
Have：Absorption, absorption, condensation, UF membrane etc., wherein adsorption technology be using some such as activated carbons of the material with adsorption capacity,
The adsorbents such as molecular sieve, silica gel, adobe ore, high polymer polymeric adsorbent, adsorb harmful substance and reach and eliminate pollution
Purpose.Adsorption technology is suitable for almost all vapor phase contaminants, because it has a broad applicability, adsorption technology increasingly by
The favor of researcher, various novel absorption materials are also developed appearance in succession, in the R＆D process of novel absorption material, it is necessary to
Constantly the adsorption efficiency of detection material is to verify its adsorption effect, and needs to sample same batch product among these while examine
Analysis is surveyed, by comparing result to obtain the adsorption efficiency of material, but generally uses the sampling of different batches in the prior art
Product, even the sampling product with batch is also that successively detection and analysis contrast is carried out in the different time, this is for some groups
The result of different time detection is different for sample gas that point can not be continual and steady, the absorption effect of the material of certain final test
Rate is also inaccurate.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of gas-detecting device, solves existing inspection
The technical problem of adsorption efficiency detection contrast can not be carried out to same batch sample gas simultaneously by surveying device.
Technical scheme is used by the utility model solves its technical problem：A kind of gas-detecting device, including detection
Instrument body, in addition to discharge and sampling surge chamber, by two pistons being connected with piston rod by it in the discharge
Portion space separates, to form two collection chambers of volume identical first and the second collection chamber；The inlet end of the sampling surge chamber
It is connected with probe tube, outlet side is connected with appendix；The appendix is provided with current divider, and two outlets of this current divider are logical
The first connecting tube and the second connecting tube is crossed respectively with the air inlet of the first collection chamber and the air inlet of the second collection chamber to be connected；It is described
The gas outlet of first collection chamber and the gas outlet of the second collection chamber are examined by sample feeding pipe respectively at the first detector body and second
Survey instrument body to be connected, the first bypass conduit in parallel therewith is additionally provided with the sample feeding pipe, first bypass conduit is provided with
Absorber；Bleeding point is respectively equipped with first collection chamber and the second collection chamber, the bleeding point is by exhaust pipe with taking out
Air pump is connected；Switch valve is equipped with the exhaust pipe and sample feeding pipe.
As further preferred embodiment, filtered in the sampling surge chamber close to the position of inlet end provided with solid
Device.
As further preferred embodiment, second connecting tube is provided with the second shunt valve being in parallel therewith
Road, absorber also is provided with second bypass conduit.
As further preferred embodiment, first bypass conduit and the junction of sample feeding pipe and described second
The junction of bypass conduit and the second connecting tube is equipped with outlet reversal valve.
As further preferred embodiment, heater is additionally provided with the sample feeding pipe.
As further preferred embodiment, the absorber is made up of the filter core in cylinder and cylinder, filter core both sides
Cushion space is left between cylinder corresponding end-faces.
As further preferred embodiment, the both sides of the filter core are orifice plate, and sorbing material is filled between two orifice plates.
As further preferred embodiment, the excessively mobile limited block of limitation piston is additionally provided with the discharge.
Good effect of the present utility model：The utility model to the gas of same time can sample simultaneously, and energy
The enough gas to sampling tests and analyzes under same sample rate simultaneously, can not only obtain no filter simultaneously and have filtering
The testing result of device, the testing result by once filtering, after filtering twice can also be obtained simultaneously, is avoided in the prior art
The inaccuracy that non-concurrent same batch detection band is come, improves the detectability to sorbing material absorption property, and simple to operate,
It is practical.
Brief description of the drawings
Fig. 1 is the structural representation of gas-detecting device described in the utility model preferred embodiment；
Fig. 2 is the structural representation of absorber described in the utility model preferred embodiment.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
Reference picture 1 and Fig. 2, the utility model preferred embodiment provide a kind of gas-detecting device, including detector body,
Also include discharge 1 and sample surge chamber 8, by two pistons 4 being connected with piston rod 5 by inside it in the discharge 1
Space separates, to form two volume identical the first collection chambers 2 and the second collection chamber 3；The inlet end of the sampling surge chamber 8
It is connected with probe tube 6, outlet side is connected with appendix 9；The appendix 9 is provided with current divider 10, two of this current divider 10
Outlet is collected with the air inlet of the first collection chamber 2 and second respectively by the first connecting tube (not marked in figure) and the second connecting tube 13
The air inlet of air chamber 3 is connected；The gas outlet of first collection chamber 2 and the gas outlet of the second collection chamber 3 are divided by sample feeding pipe 18
It is not connected in the first detector body 21 with the second detector body 22, the first of parallel connection therewith is additionally provided with the sample feeding pipe 18
Bypass conduit 20, first bypass conduit 20 are provided with absorber 12；Divide on the collection chamber 3 of first collection chamber 2 and second
Not She You bleeding point, the bleeding point is connected by exhaust pipe 16 with aspiration pump 15；On the exhaust pipe and sample feeding pipe
(it is not drawn into provided with switch valve in figure).
Solid filter 7 is provided with close to the position of inlet end in the sampling surge chamber 8, it is big in gas for filtering out
Particle diameter solid impurity.
Second connecting tube 13 is provided with the second bypass conduit 11 for being in parallel therewith, in second bypass conduit 11
It also is provided with absorber 12.
First bypass conduit 20 is connected with the junction of sample feeding pipe 18 and second bypass conduit 11 with second
The junction of pipe 13 is equipped with outlet reversal valve 14.
Heater 19 is additionally provided with the sample feeding pipe 18, for being heated to the gas in sample feeding pipe simultaneously, in order to
The testing conditions at temperature required by reaching.
As shown in Fig. 2 the absorber 12 is made up of the filter core in cylinder 23 and cylinder 23, filter core both sides are corresponding to cylinder
Cushion space 24 is left between end face.
The both sides of the filter core are the plate of hole 25, and sorbing material 26 is filled between two orifice plates 25.
During using the utility model, the switch valve that is first shut off on sample feeding pipe 18 is constantly taken out using aspiration pump 15
Gas, the sampled surge chamber 8 of gas, current divider 10, is then constantly entered through the first connecting tube and the second connecting tube 13 respectively
First collection chamber and the second collection chamber, after the gas component in collection chamber is stable, aspiration pump is closed, simultaneously closes off exhaust tube
Switch valve on road and the first connecting tube and the second connecting tube, the switch valve on sampling line is opened, promote piston rod, and then
Promote piston to be moved with certain speed, make the gas in collection chamber while detected at the same rate into detector, examine
It can decide whether to use filter at any time during survey.
The utility model to the gas of same time can sample simultaneously, and can be to the gas of sampling while same
Tested and analyzed under the sample rate of sample, no filter can not only be obtained simultaneously and have the testing result of filter, can also be same
When obtain by once filtering, twice filter after testing result, avoid in the prior art non-concurrent same batch detection band come
Inaccuracy, improve the detectability to sorbing material absorption property, and simple to operate, it is practical.
Above-described is only preferred embodiment of the present utility model, should be understood that the explanation of above example only
It is to be used to help understand method and its core concept of the present utility model, is not used to limit the scope of protection of the utility model,
All any modifications made within thought of the present utility model and principle, equivalent substitution etc., it is new to should be included in this practicality
Within the protection domain of type.
Claims (8)
1. a kind of gas-detecting device, including detector body, it is characterised in that：Also include discharge and sampling surge chamber, institute
State and separated its inner space by two pistons being connected with piston rod in discharge, to form two volume identicals first
Collection chamber and the second collection chamber；The inlet end of the sampling surge chamber is connected with probe tube, and outlet side is connected with appendix；It is described
Appendix is provided with current divider, two outlets of this current divider by the first connecting tube and the second connecting tube respectively with the first gas collection
The air inlet of the air inlet of room and the second collection chamber is connected；The gas outlet of first collection chamber and the gas outlet of the second collection chamber
It is connected by sample feeding pipe respectively at the first detector body and the second detector body, is additionally provided with the sample feeding pipe in parallel therewith
The first bypass conduit, first bypass conduit is provided with absorber；On first collection chamber and the second collection chamber respectively
Provided with bleeding point, the bleeding point is connected by exhaust pipe with aspiration pump；It is equipped with out on the exhaust pipe and sample feeding pipe
Close valve.
A kind of 2. gas-detecting device according to claim 1, it is characterised in that：Close to air inlet in the sampling surge chamber
The position at end is provided with solid filter.
A kind of 3. gas-detecting device according to claim 1, it is characterised in that：Second connecting tube is provided with therewith
The second bypass conduit being in parallel, absorber also is provided with second bypass conduit.
A kind of 4. gas-detecting device according to claim 3, it is characterised in that：First bypass conduit and sample feeding pipe
Junction and the junction of second bypass conduit and the second connecting tube be equipped with outlet reversal valve.
A kind of 5. gas-detecting device according to claim 1, it is characterised in that：Heating is additionally provided with the sample feeding pipe
Device.
A kind of 6. gas-detecting device according to any one of claim 1-5 claim, it is characterised in that：The suction
Adnexa is made up of the filter core in cylinder and cylinder, and cushion space is left between filter core both sides and cylinder corresponding end-faces.
A kind of 7. gas-detecting device according to claim 6, it is characterised in that：The both sides of the filter core are orifice plate, two
Sorbing material is filled between orifice plate.
A kind of 8. gas-detecting device according to any one of claim 1-5 claim, it is characterised in that：The collection
Tracheal strips are additionally provided with the excessively mobile limited block of limitation piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328548.8U CN206671291U (en) | 2017-03-30 | 2017-03-30 | A kind of gas-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328548.8U CN206671291U (en) | 2017-03-30 | 2017-03-30 | A kind of gas-detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671291U true CN206671291U (en) | 2017-11-24 |
Family
ID=60367420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328548.8U Expired - Fee Related CN206671291U (en) | 2017-03-30 | 2017-03-30 | A kind of gas-detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671291U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057973A (en) * | 2019-04-01 | 2019-07-26 | 浙江工商大学 | A kind of use for laboratory gas safety pre-warning system and method |
| CN111398528A (en) * | 2020-04-01 | 2020-07-10 | 湖南鼎誉检验检测有限公司 | Portable air detection system for environmental improvement |
| CN112666321A (en) * | 2021-01-25 | 2021-04-16 | 南京静旭机电科技有限公司 | Energy-saving and environment-friendly detection device for green building |
| CN116242795A (en) * | 2023-05-12 | 2023-06-09 | 山东益来环保科技有限公司 | Ultraviolet smoke analyzer and application method thereof |
-
2017
- 2017-03-30 CN CN201720328548.8U patent/CN206671291U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057973A (en) * | 2019-04-01 | 2019-07-26 | 浙江工商大学 | A kind of use for laboratory gas safety pre-warning system and method |
| CN111398528A (en) * | 2020-04-01 | 2020-07-10 | 湖南鼎誉检验检测有限公司 | Portable air detection system for environmental improvement |
| CN112666321A (en) * | 2021-01-25 | 2021-04-16 | 南京静旭机电科技有限公司 | Energy-saving and environment-friendly detection device for green building |
| CN112666321B (en) * | 2021-01-25 | 2021-09-17 | 山东乾昇检测有限公司 | Energy-saving and environment-friendly detection device for green building |
| CN116242795A (en) * | 2023-05-12 | 2023-06-09 | 山东益来环保科技有限公司 | Ultraviolet smoke analyzer and application method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20200330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |