CN206930630U - A kind of gas chromatograph sampling pre-procesor - Google Patents
A kind of gas chromatograph sampling pre-procesor Download PDFInfo
- Publication number
- CN206930630U CN206930630U CN201720667105.1U CN201720667105U CN206930630U CN 206930630 U CN206930630 U CN 206930630U CN 201720667105 U CN201720667105 U CN 201720667105U CN 206930630 U CN206930630 U CN 206930630U
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- China
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- gas chromatograph
- intake passage
- sample intake
- procesor
- heating
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Abstract
The utility model discloses a kind of gas chromatograph sampling pre-procesor, including sample intake passage, one end connection engine exhaust manifold, other end connection gas chromatograph；Also include the zone of heating being arranged on outside sample intake passage and the heat-insulation layer being arranged on outside zone of heating；Temperature sensor, temperature sensor connection temperature control equipment are additionally provided with sample intake passage, temperature control equipment is also connected to zone of heating；Filter is additionally provided with sample intake passage；The utility model can be to the real-time detection of engine exhaust, while filtering can be carried out to waste gas and avoids damaging gas chromatograph.
Description
Technical field
It the utility model is related to engine emission analysis field, and in particular to a kind of preposition processing dress of gas chromatograph sampling
Put.
Background technology
Because the reserves of fossil fuel are constantly reduced, various New-type fuels（Methanol, dimethyl ether, natural gas etc.）It is universal
Apply on all kinds of h type engine hs, the use of these New-type fuels can not only alleviate petroleum fuel shortage, reduce use cost, together
When can also reduce various Routine purges things；But the novel discharge that the burning of substitute fuel never occurs before equally producing
Thing, such as formaldehyde, methanol and aldoketones material；These materials are quantitatively relatively fewer, but but have more in terms of toxicity
Strengthen strong side effect, extreme influence can be produced to health, it is therefore necessary to these emerging pollutants are carried out in detail
Experimental study and analyzing and processing.
Currently used various exhaust gas analyzers can not all be accomplished accurately to detect these Unregulated emissions, so various
New emission analyzer just needs to be introduced into the detection of engine exhaust emission；Unregulated exhaust detection more commonly used at present
Instrument just includes gas chromatographicanalyzer, material of this instrument mainly for various gas phases：1. if exist in exhaust various
Trickle particle and impurity, just have to carry out the gas sample that collects pre-treatment, the wherein unnecessary moisture of filtering and
Grain thing, prevent it from blocking sampling system and damage capillary column；2. current most of gas chromatographic detections are all to pass through sampler bag
Gas sampling is carried out, gas chromatograph is transferred to particulate syringe again afterwards and is detected, can not accomplish that real-time working condition is real-time
Detection, during gas sampling and transport, exhaust gas constituents are likely to occur change, can not Accurate Determining its material composition,
Its actual effect substantially reduces.
Utility model content
The utility model provides one kind can be to the real-time detection of engine exhaust, while can carry out filtering to waste gas and avoid damaging
The gas chromatograph sampling pre-procesor of evil gas chromatograph.
The technical solution adopted by the present invention is：A kind of gas chromatograph sampling pre-procesor, including sample intake passage, one
End connection engine exhaust manifold, other end connection gas chromatograph；Also include being arranged on zone of heating outside sample intake passage and
The heat-insulation layer being arranged on outside zone of heating；Temperature sensor, temperature sensor connection temperature control are additionally provided with sample intake passage
Device, temperature control equipment are also connected to zone of heating；Filter is additionally provided with sample intake passage.
Further, the filter is level Four filter.
Further, aspiration pump is provided between filter and gas chromatograph on the sample intake passage.
Further, gas chromatograph connection end is provided with quantitative sampling device on the sample intake passage.
Further, heat-insulation layer and the zone of heating multistage is set, and is provided with temperature corresponding to every section in sample intake passage
Sensor.
Further, engine exhaust manifold connection end is provided with control valve on the sample intake passage.
The beneficial effects of the utility model are：
（1）The utility model can not change detection material concentration by the temperature sensor being arranged in sample intake passage
Waste gas is detected in real time simultaneously；
（2）The utility model is provided with level Four filter, solid impurity and moisture in scavenging, does not change waste gas
Composition, protect gas chromatograph；
（3）The utility model can be detected in the case where ensureing normal operation together, and testing result is accurate.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1- engines, 2- engine exhaust manifolds, 3- control valves, 4- sample intake passages, 5- zones of heating, 6- heat-insulation layers,
7- temperature sensors, 8- temperature control equipments, 9- filters, 10- aspiration pumps, 11- quantitative sampling devices, 12- gas-chromatographies
Instrument.
Embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of gas chromatograph sampling pre-procesor, including sample intake passage 4, one end connection engine
Exhaust main 2, other end connection gas chromatograph 12；Also include being arranged on zone of heating 5 sample intake passage 4 outside and being arranged on adding
Heat-insulation layer 6 outside thermosphere 5；Temperature sensor 7 is additionally provided with sample intake passage 4, temperature sensor 7 connects temperature control equipment
8, temperature control equipment 8 is also connected to zone of heating 5；Filter 9 is additionally provided with sample intake passage 4.
Further, the filter 9 is level Four filter, and first layer filtering material is absorbent cotton, is mainly used to
Filter moisture；Second layer filtering material is fast quantification filter paper, 100 microns of filtering particle diameter ＞ solid impurity；Third layer filtering
Material is middling speed quantitative filter paper, 30 microns of filtering particle diameter ＞ solid impurity；4th layer of filtering material is quantitative filter paper at a slow speed, mistake
Filter 3 microns of diameter ＞ solid impurity.
Further, aspiration pump 10 is provided between filter 9 and gas chromatograph 12 on the sample intake passage 4；If
After putting filter 9, especially level Four filter, its equipment resistance is larger, and installation aspiration pump 10 is carried out by force to sample intake passage 4
Flow quantity control processed, ensure that gas normally transports.
Further, the connection end of gas chromatograph 12 is provided with quantitative sampling device 11 on the sample intake passage 4；Set
Quantitative sampling device 11, by being detected after its quantity tube precisive into gas chromatograph 12.
Further, heat-insulation layer 6 and zone of heating 5 multistage is set, and temperature is provided with sample intake passage 4 corresponding to every section
Spend sensor 7.
Further, the connection end of engine exhaust manifold 2 is provided with control valve 3 on the sample intake passage 4.
In use, engine 1, which operates caused waste gas, enters engine exhaust manifold 2, then enter by control valve 3
Sample passage 4；Different structure and the sample intake passage of length can be designed for various threst stands；In order to ensure that waste gas is protected
Vaporized state is held, the external demand of sample intake passage 4 sets zone of heating 5 and heat-insulation layer 6；By temperature sensor 7 to the gas in sample intake passage 4
Body is detected, if the temperature of sample intake passage 4 is less than 100 DEG C, needs to carry out heat temperature raising；The control of temperature control equipment 8 adds
Thermosphere 5 carries out heat temperature raising；Temperature control equipment 8 uses existing temperature control system；Heat-insulation layer 6 and zone of heating 5 carry out multistage paving
And if temperature sensor 7 is set in every section of corresponding sample intake passage 4；Each temperature sensor 7 detects this section of sample intake passage 4
Interior temperature, and testing result is fed back into temperature control equipment 8；It is more smart that temperature control can be achieved in segmentation detection and control
Really；If temperature can carry out heat temperature raising to this section of sample intake passage 4 automatically less than design temperature, reaching predetermined temperature can stop
Only heat；Waste gas subsequently enters level Four filter, filters moisture and solid granulates, due to level Four filter equipment resistance compared with
Greatly, it is necessary to install electronic air extracting pump 10, compulsory circulation control is carried out, ensures that gas normally transports；By most of solid impurity and
After moisture filtering, waste gas enters quantitative sampling device 11, by being detected after quantity tube precisive into gas chromatograph 12.
The utility model carries out multistage filtering to engine exhaust, solid impurity and moisture that can be in eliminating waste gas；Not
The real-time detection of gas chromatograph is completed while changing detection material concentration, ensures the normal operation and experimental data of instrument
Precision；Gas chromatograph is protected simultaneously, prevents detection post inactivation.
Claims (6)
- A kind of 1. gas chromatograph sampling pre-procesor, it is characterised in that：Including sample intake passage (4), one end connection is started Machine exhaust main (2), other end connection gas chromatograph (12)；Also include being arranged on the outside zone of heating (5) of sample intake passage (4) The heat-insulation layer (6) outside with zone of heating (5) is arranged on；Temperature sensor (7), TEMP are additionally provided with sample intake passage (4) Device (7) connection temperature control equipment (8), temperature control equipment (8) are also connected to zone of heating (5)；Sample intake passage is also set up on (4) There is filter (9).
- A kind of 2. gas chromatograph sampling pre-procesor according to claim 1, it is characterised in that：The filtering dress It is level Four filter to put (9).
- A kind of 3. gas chromatograph sampling pre-procesor according to claim 1, it is characterised in that：The sample introduction leads to Aspiration pump (10) is provided with road (4) between filter (9) and gas chromatograph (12).
- A kind of 4. gas chromatograph sampling pre-procesor according to claim 1, it is characterised in that：The sample introduction leads to Gas chromatograph (12) connection end is provided with quantitative sampling device (11) on road (4).
- A kind of 5. gas chromatograph sampling pre-procesor according to claim 1, it is characterised in that：The heat-insulation layer (6) set with zone of heating (5) multistage, temperature sensor (7) is provided with sample intake passage corresponding to every section (4).
- A kind of 6. gas chromatograph sampling pre-procesor according to claim 1, it is characterised in that：The sample introduction leads to Engine exhaust manifold (2) connection end is provided with control valve (3) on road (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667105.1U CN206930630U (en) | 2017-06-09 | 2017-06-09 | A kind of gas chromatograph sampling pre-procesor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667105.1U CN206930630U (en) | 2017-06-09 | 2017-06-09 | A kind of gas chromatograph sampling pre-procesor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206930630U true CN206930630U (en) | 2018-01-26 |
Family
ID=61346128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720667105.1U Expired - Fee Related CN206930630U (en) | 2017-06-09 | 2017-06-09 | A kind of gas chromatograph sampling pre-procesor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206930630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113365725A (en) * | 2019-01-31 | 2021-09-07 | 制药流体股份有限公司 | Filter for chemical reactor |
-
2017
- 2017-06-09 CN CN201720667105.1U patent/CN206930630U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113365725A (en) * | 2019-01-31 | 2021-09-07 | 制药流体股份有限公司 | Filter for chemical reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20180609 |