CN205643265U - Non -methane total hydrocarbon autosampler - Google Patents
Non -methane total hydrocarbon autosampler Download PDFInfo
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- CN205643265U CN205643265U CN201620416649.6U CN201620416649U CN205643265U CN 205643265 U CN205643265 U CN 205643265U CN 201620416649 U CN201620416649 U CN 201620416649U CN 205643265 U CN205643265 U CN 205643265U
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- sample
- nmhc
- branch road
- automatic sampler
- supply
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Abstract
The utility model discloses a non -methane total hydrocarbon autosampler, non -methane total hydrocarbon autosampler includes: multichannel valve switch, vaporization water supply ware, gaseous blending machine and catalyst converter, wherein, multichannel valve switch is used for switching over the appearance of advancing of first sample and second sample, and first sample is used for detecting and wherein contains total hydrocarbon and get into first branch road, and the second sample is used for detecting and wherein contains methane and get into the second branch road, vaporization water supply ware is connected to first branch road for to first branch road supply vaporization water, gaseous blending machine sets up on first way for the mixing comes from the first sample of multichannel valve switch and the vaporization water that comes from vaporization water supply ware, the catalyst converter is used for the first sample behind the catalysis channel qi body blending machine mixing. The utility model has the advantages of can generate methane with other non -methane total hydrocarbon catalysis, make non -methane total hydrocarbon's measured value more approach true measurement concentration to simple operation, high efficiency.
Description
Technical field
This utility model relates to gas automatic sampling device field, automatic particularly to a kind of NMHC
Injector.
Background technology
The mensuration of NMHC is to utilize gas chromatograph-flame ionization detector (FID) to carry out
Analyze, carry out qualitative, quantitative calculating with the mixing gas of methane, propane.The operation principle of FID based on
It is ionized probability (1/10 in the carbon in carbon response theory, i.e. compound6) it is identical.And in reality
During mensuration, the probability that hydrocarbon compound is ionized can be by hydrogen and AIR Proportional, self sense
The factor impacts such as group's polarity is strong and weak.The hydrocarbon compound response value deviation of equal in quality concentration is very big, makes
Become the deviation of determination data and legitimate reading.
Additionally, in test, many employing syringes or airbag gather sample, the mode of manual sample introduction is tested
NMHC.This operating process more frequently, the longest, and the error artificially caused is the biggest.
Existing gas automatic sampling device is used for gaseous sample auto injection, but this equipment deficiency is nothing
Method meets the mensuration of NMHC.
Utility model content
The purpose of this utility model is to provide the convenient of a kind of energy Accurate Determining NMHC concentration
Efficient NMHC automatic sampler.
A kind of NMHC automatic sampler, wherein, described NMHC automatic sampler includes:
Multiple valve switch, vaporization water supply, gas vortex mixer and catalyst converter；Wherein, described manifold
Road Vavle switching device is for switching the first sample and the sample introduction of the second sample, and described first sample is used for detecting
Total hydrocarbon contained therein also enters the first branch road, and described second sample is used for detecting methane contained therein and goes forward side by side
Enter the second branch road；Described vaporization water supply is connected to described first branch road, for described first
Road supply vaporization water；Described gas vortex mixer is arranged on described first branch road, for mixing from institute
State described first sample of multiple valve switch and from the described vaporization of described vaporization water supply
Water；Described catalyst converter is for being catalyzed described first sample after described gas vortex mixer mixes.
It is preferred that described NMHC automatic sampler also includes carrier gas supply, described dilution
Gas supply is connected with described multiple valve switch and for for described first sample and described the
Two sample supply carrier gas.
It is preferred that described multiple valve switch includes: Multi-channel switching valve, gas mixing chamber, gas
Stream regulation controller, the first gasometry ring, the second gasometry ring, the first six-way valve and the two or six
Logical valve；Wherein, described Multi-channel switching valve and described carrier gas supply connect described gas mixing chamber,
Air-flow regulation controller, described gas it is provided with between described carrier gas supply and described gas mixing chamber
Hybrid chamber connects described first gasometry ring in parallel and the second gasometry ring, described first gas
Quantitative loop connects described first six-way valve, and described second gasometry ring connects described second six-way valve,
Described carrier gas supply is connected with described first six-way valve and described second six-way valve the most respectively, described
First gasometry ring is for for described first sample amounts, and described first six-way valve is used for exporting warp
Quantitative described first sample, described second gasometry ring for for described second sample amounts, and
Described second six-way valve is for exporting through quantitative described second sample.
It is preferred that described vaporization water supply includes container filled with water and vaporization water heater.
It is preferred that described catalyst converter is hollow circular-tube.
It is preferred that described hollow circular-tube is straight tube or helical form bend pipe.
It is preferred that the bore of described hollow circular-tube is 10mm, pipe external diameter is 20mm, and pipe range is
1m。
It is preferred that the outer wall of described hollow circular-tube is wrapped up by heater, and described heater also includes
Temperature sensor and controllable temperature module, the inside of described hollow circular-tube is provided with nickel shot active catalyst.
It is preferred that be provided with temperature controller on described first branch road in described catalyst converter downstream, and/
Or it is provided with temperature controller on described second branch road.
It is preferred that be connected to described first branch road at described vaporization water supply on described first branch road
The upstream at place is provided with a pump.
The beneficial effects of the utility model are: the catalysis of other NMHCs can be generated methane,
Make the measured value of NMHC closer to truly measuring concentration, and simple operation, efficiently.
Accompanying drawing explanation
Fig. 1 is that the structure of the NMHC automatic sampler according to this utility model preferred embodiment is shown
It is intended to.
Fig. 2 is the multichannel of the NMHC automatic sampler according to this utility model preferred embodiment
The structural representation of Vavle switching device.
[description of reference numerals]
1 NMHC automatic sampler
2 multiple valve switch
21 Multi-channel switching valves
22 gas mixing chamber
23 air-flow regulation controllers
24 first gasometry rings
25 second gasometry rings
26 first six-way valves
27 second six-way valves
3 carrier gas supplies
4 vaporization water supplies
41 containers filled with water
42 vaporization water heaters
43 pumps
5 gas vortex mixers
6 catalyst converters
7 first branch roads
71 pumps
72 temperature controllers
8 second branch roads
81 temperature controllers
9 gas chromatograpies
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with tool
Body embodiment, and referring to the drawings, the utility model is described in further detail.
Fig. 1 is that the structure of the NMHC automatic sampler according to this utility model preferred embodiment is shown
It is intended to.As it is shown in figure 1, NMHC automatic sampler 1 includes multiple valve switch 2, dilute
Outgassing supply 3, vaporization water supply 4, gas vortex mixer 5 and catalyst converter 6.
Multiple valve switch 2 is used for switching the first sample and the sample introduction of the second sample, the first sample
In detecting total hydrocarbon contained therein and entering the first branch road 7, the second sample is used for detecting methane contained therein
And enter the second branch road 8.
Carrier gas supply 3 is connected with multiple valve switch 2 and is used for is the first sample and second
Sample supply carrier gas.
Vaporization water supply 4 is connected to the first branch road 7, for the first branch road 7 supply vaporization water.
Vaporization water supply 4 includes container filled with water 41 and vaporization water heater 42.Container filled with water 41 and vaporization
A pump 43 it is provided with between water heater 42.First branch road 7 is connected at vaporization water supply 4
Upstream at first branch road 7 is provided with a pump 71.
Gas vortex mixer 5 is arranged on the first branch road 7, for mixing from multiple valve switch 2
The first sample and from vaporization water supply 4 vaporization water.
Catalyst converter 6 is for being catalyzed the first sample after gas vortex mixer 5 mixes.Catalyst converter 6 is empty
Heart pipe.Hollow circular-tube is straight tube or helical form bend pipe.The bore of hollow circular-tube is 10mm, pipe
External diameter is 20mm, and pipe range is 1m.The outer wall of hollow circular-tube is wrapped up by heater, and heater is also
Including temperature sensor and controllable temperature module, the inside of hollow circular-tube is provided with nickel shot active catalyst.
First branch road 7 is provided with temperature controller 72 in catalyst converter 6 downstream, at the second branch road 8
It is provided with temperature controller 81.
After temperature controller, the first branch road 7 is connected gas chromatogram respectively with the second branch road 8
Instrument 9, i.e. NMHC automatic sampler 1 connect gas chromatograph 9.In first branch road 7
The second sample in one sample and the second branch road 8 finally respectively enters gas chromatograph 9, to examine respectively
Survey the total hydrocarbon in the first sample and the methane in the second sample.It is finally completed by gas chromatograph 9
Mensuration to NMHC.
Fig. 2 is the multichannel of the NMHC automatic sampler according to this utility model preferred embodiment
The structural representation of Vavle switching device.As in figure 2 it is shown, multiple valve switch 2 includes that multichannel switches
Valve 21, gas mixing chamber 22, air-flow regulation controller the 23, first gasometry ring the 24, second gas
Body quantitative loop the 25, first six-way valve 26 and the second six-way valve 27.
Multi-channel switching valve 21 and carrier gas supply 3 connect gas mixing chamber, carrier gas supply 3
And being provided with air-flow regulation controller 23 between gas mixing chamber 22, gas mixing chamber 22 connects parallel connection
First gasometry ring 24 and the second gasometry ring 25, the first gasometry ring 24 connects the one or six
Logical valve 26, the second gasometry ring 25 connects the second six-way valve 27, and carrier gas supply 3 is also distinguished
Being connected with the first six-way valve 26 and the second six-way valve 27, the first gasometry ring 24 is used for being first
Sample amounts, and the first six-way valve 26 is for exporting through the first quantitative sample, the second gasometry
Ring 25 is used for being the second sample amounts, and the second six-way valve 27 is for exporting through the second quantitative sample.
In actual mechanical process, in measuring sample during methane, automatic sampler pass through quantitative loop
Quantitatively, entering gas chromatograph 9, GDX-104 chromatographic column is analyzed quantitatively；In measuring sample
During total hydrocarbon, sample by quantitative loop in automatic sampler quantitatively after, with vaporization water Hybrid Heating, pass through
High temperature nickel particulate catalytic post is catalyzed, and hydrocarbon compound is converted into gaseous methane the most at last, by
GDX-104 chromatographic column is analyzed quantitatively.During analysis, automatic sampler has the dilute of controllable flow rate
Releasing function, carrier gas is nitrogen.Being parallel pipeline in automatic sampler, two 1ml in parallel are fixed for entrance
Amount ring, by multiple valve switching methane and the sample introduction of total hydrocarbon.
By high temperature nickel granule, hydrocarbon compound is catalyzed, is measured after being converted into methane, can keep away
Exempting from the response variance that different functional groups is brought, make the sample normalization of complexity, measurement result is the most accurate.
This utility model utilizes vaporization water and actual sample Hybrid Heating, by high temperature nickel particulate catalytic post
Being catalyzed, hydrocarbon compound is converted into gaseous methane the most at last, utilizes gas chromatograph-FID to analyze,
Measure NMHC concentration.
The utility model has the advantage of and the catalysis of other NMHCs can be generated methane, make non-first
The measured value of alkane total hydrocarbon is closer to truly measuring concentration.Control respectively to add it addition, this kind of equipment is software
Thermal control gentleness flow rate of pipelines assembly, it is achieved full-automatic, easily operates, it is possible to disposable process organizes sample more
Product, save time working time.
Particular embodiments described above, to the purpose of this utility model, technical scheme and beneficial effect
Carry out further describing it should be understood that the foregoing is only concrete reality of the present utility model
Execute example, be not limited to this utility model, all within spirit of the present utility model and principle,
Any modification, equivalent substitution and improvement etc. done, should be included in protection domain of the present utility model
Within.
Claims (10)
1. a NMHC automatic sampler, it is characterised in that described NMHC is automatic
Injector includes: multiple valve switch, vaporization water supply, gas vortex mixer and catalyst converter；Its
In,
Described multiple valve switch for switching the first sample and the sample introduction of the second sample, described first
Sample is used for detecting total hydrocarbon contained therein and entering the first branch road, and described second sample is for detection wherein
Contained methane also enters the second branch road；
Described vaporization water supply is connected to described first branch road, for described first branch road supply vapour
Change water；
Described gas vortex mixer is arranged on described first branch road, for mixing from described multiple valve
Described first sample of switch and the described vaporization water from described vaporization water supply；
Described catalyst converter is for being catalyzed described first sample after described gas vortex mixer mixes.
NMHC automatic sampler the most according to claim 1, it is characterised in that institute
Stating NMHC automatic sampler and also include carrier gas supply, described carrier gas supply is with described
Multiple valve switch connects and for diluting for described first sample and described second sample supply
Gas.
NMHC automatic sampler the most according to claim 2, it is characterised in that institute
State multiple valve switch to include: Multi-channel switching valve, gas mixing chamber, air-flow regulation controller,
First gasometry ring, the second gasometry ring, the first six-way valve and the second six-way valve；Wherein,
Described Multi-channel switching valve and described carrier gas supply connect described gas mixing chamber, described dilute
Air-flow regulation controller, described gas mixing chamber it is provided with between outgassing supply and described gas mixing chamber
Connect described first gasometry ring in parallel and the second gasometry ring, described first gasometry ring
Connecting described first six-way valve, described second gasometry ring connects described second six-way valve, described dilute
Outgassing supply is connected with described first six-way valve and described second six-way valve the most respectively, described first gas
Body quantitative loop is for for described first sample amounts, and described first six-way valve is for exporting through quantitative
Described first sample, described second gasometry ring for for described second sample amounts, and described the
Two six-way valves are for exporting through quantitative described second sample.
NMHC automatic sampler the most according to claim 1, it is characterised in that institute
State vaporization water supply and include container filled with water and vaporization water heater.
NMHC automatic sampler the most according to claim 1, it is characterised in that institute
Stating catalyst converter is hollow circular-tube.
NMHC automatic sampler the most according to claim 5, it is characterised in that institute
Stating hollow circular-tube is straight tube or helical form bend pipe.
NMHC automatic sampler the most according to claim 5, it is characterised in that institute
The bore stating hollow circular-tube is 10mm, and pipe external diameter is 20mm, and pipe range is 1m.
NMHC automatic sampler the most according to claim 5, it is characterised in that institute
The outer wall stating hollow circular-tube is wrapped up by heater, and described heater also includes temperature sensor and can
Temperature control module, the inside of described hollow circular-tube is provided with nickel shot active catalyst.
NMHC automatic sampler the most according to claim 1, it is characterised in that
It is provided with temperature controller in described catalyst converter downstream on described first branch road, and/or at described second branch road
It is provided with temperature controller.
NMHC automatic sampler the most according to claim 1, it is characterised in that
The upstream being connected at described first branch road at described vaporization water supply on described first branch road is provided with
One pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416649.6U CN205643265U (en) | 2016-05-10 | 2016-05-10 | Non -methane total hydrocarbon autosampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416649.6U CN205643265U (en) | 2016-05-10 | 2016-05-10 | Non -methane total hydrocarbon autosampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643265U true CN205643265U (en) | 2016-10-12 |
Family
ID=57058496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620416649.6U Active CN205643265U (en) | 2016-05-10 | 2016-05-10 | Non -methane total hydrocarbon autosampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205643265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270183A (en) * | 2018-12-03 | 2019-01-25 | 华电智控（北京）技术有限公司 | Gas-chromatography non-methane total hydrocarbons detection device |
| CN110780015A (en) * | 2018-07-31 | 2020-02-11 | 西安市宇驰检测技术有限公司 | Detection device and detection method for non-methane total hydrocarbons |
-
2016
- 2016-05-10 CN CN201620416649.6U patent/CN205643265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780015A (en) * | 2018-07-31 | 2020-02-11 | 西安市宇驰检测技术有限公司 | Detection device and detection method for non-methane total hydrocarbons |
| CN109270183A (en) * | 2018-12-03 | 2019-01-25 | 华电智控（北京）技术有限公司 | Gas-chromatography non-methane total hydrocarbons detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chang Miao Inventor after: Liu Baoxian Inventor after: Zhang Dawei Inventor after: Shen Xiue Inventor after: Song Cheng Inventor after: Zhao Hongshuai Inventor after: Shu Xiaoping Inventor before: Chang Miao Inventor before: Shen Xiue |
|
| COR | Change of bibliographic data |