CN109870531A - Portable non-methane total hydrocarbons monitoring device - Google Patents
Portable non-methane total hydrocarbons monitoring device Download PDFInfo
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- CN109870531A CN109870531A CN201910188964.6A CN201910188964A CN109870531A CN 109870531 A CN109870531 A CN 109870531A CN 201910188964 A CN201910188964 A CN 201910188964A CN 109870531 A CN109870531 A CN 109870531A
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- total hydrocarbons
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Abstract
The portable non-methane total hydrocarbons monitoring device of the present invention, comprising: heat preservation tank module: built-in quantity tube, total hydrocarbon column, ten-way valve, sampling pump；Detector module: it is made of fid detector；High-temperature catalytic module: including catalyst oxidation reactor and high-temperature heating equipment；Supply module: the small size steel cylinder and an air pump and air exclusion device for being respectively used to the supply of nitrogen and hydrogen comprising two provide satisfactory gas for fid detector.
Description
Technical field
Include the present invention relates to detection device and detection system technical field, specifically, it shows a kind of portable non-first
Alkane total hydrocarbon monitoring device.
Background technique
Non-methane total hydrocarbons (NMHC) refers to the general name of all hydrocarbons in addition to methane, mainly include alkane, alkene,
The components such as aromatic hydrocarbon and oxygen-containing hydrocarbon, include and are not limited to C under normal circumstances2~C12Substance, be VOCs pollutant in atmosphere
Chief component；After the pollutant is discharged into atmosphere, photochemical reaction can occur with nitrogen oxides, be formed smelly
Oxygen contamination；Also can in atmosphere nitrate anion and the oxidants such as ozone molecule react and generate secondary organic aerosol, it is this kind of
Aerosol is exactly the chief component for causing the PM2.5 particulate matter seriously polluted to domestic atmospheric air quality in recent years；Together
When many VOCs ingredients there is acute or chronic, direct or indirect intoxicating effect, serious harm human health.
Non-methane total hydrocarbons monitoring technology mainly utilizes hydrogen flame ionization detector (FID)+chromatography post separation technology at present
Scheme, wherein include 2 tunnel chromatographic columns, all the way not have the inertia void column of separation function as total hydrocarbon column, another way is can be with
The methane column that methane and other non-methane hydrocarbons are separated, two-way chromatographic column connect to obtain respectively with fid detector
The difference of the concentration value of the concentration value of total hydrocarbon and the concentration value of methane, detected total hydrocarbon and methane is non-methane total hydrocarbons
Concentration.
The monitoring of non-methane total hydrocarbons mainly includes off-line monitoring and on-line monitoring at present.Wherein off-line monitoring uses sample first
Then gas sampler bag or sample gas sampling bottle take sample gas to speciality chemical assay laboratory and are divided from collection in worksite sample gas
Analysis, this method actual effect is poor, can have various unpredictable shapes in the process using airbag or gas cylinder sampling transfer sample gas
Condition influences final analysis result.On-line monitoring is then that the specialty analysis equipment of Chemical Analysis Lab is installed to scene, is utilized
On-line period device directly acquires the analytical equipment of sample pneumatic transmission to scene from environment or discharge outlet, and this method is accounted for using equipment
Ground is more, and volume and weight is all higher, is monitored suitable for being fixed on locality, without portability.
Therefore, it is necessary to provide a kind of portable non-methane total hydrocarbons monitoring device to solve the above problems.
Summary of the invention
The object of the present invention is to provide a kind of portable non-methane total hydrocarbons monitoring devices, single can carry to any occasion
Live instant analysis is carried out, can be used for personnel's field monitorings such as Huan Jian department, third party testing agency and environmental protection administration, factory
Non-methane total hydrocarbons concentration value.
Technical solution is as follows:
A kind of portable non-methane total hydrocarbons monitoring device, comprising:
Keep the temperature tank module: built-in quantity tube, total hydrocarbon column, ten-way valve, sampling pump；
Detector module: it is made of fid detector；
High-temperature catalytic module: including catalyst oxidation reactor and high-temperature heating equipment；
Supply module: the small size steel cylinder and an air pump and air for being respectively used to the supply of nitrogen and hydrogen comprising two
Exclusion device provides satisfactory gas for fid detector.
Further, tank module, detector module, high-temperature catalytic module, gas supply module is kept the temperature to be all set in in cabinet,
Cabinet includes pull rod and movable pulley.
Further, keeping the temperature in tank module to stablize one between 100-150 degrees Celsius really for temperature for a long time
Definite value.
Further, high-temperature catalytic module makes temperature stablize a determining value between 300~350 degrees Celsius.
Compared with prior art, present system each section is highly integrated, and small in volume is easy to carry；Using urging
Change oxidation isolation technics, can quickly separate methane from VOCs sample gas gaseous mixture.
Detailed description of the invention
Fig. 1 is one of structural schematic diagram of the invention.
Fig. 2 is second structural representation of the invention.
Specific embodiment
Embodiment:
Fig. 1 to Fig. 2 is please referred to, the present embodiment shows a kind of portable non-methane total hydrocarbons monitoring device, comprising:
Keep the temperature tank module 100: built-in quantity tube 1, total hydrocarbon column 2, ten-way valve 3, sampling pump 4；
Detector module 200: it is made of fid detector 5；
High-temperature catalytic module 300: including catalyst oxidation reactor and high-temperature heating equipment；
Supply module 400: the small size steel cylinder 6 and 7 and of air pump for being respectively used to the supply of nitrogen and hydrogen comprising two
Air exclusion device 8 provides satisfactory gas for fid detector.
Heat preservation tank module 100, detector module 200, high-temperature catalytic module 300, gas supply module 400 are all set in cabinet
In 500, cabinet 500 includes pull rod and movable pulley.
One between 100-150 degrees Celsius can be stablized for temperature for a long time in tank module 100 by, which keeping the temperature, determines value.
High-temperature catalytic module 300 makes temperature stablize a determining value between 300~350 degrees Celsius.
Compared with prior art, the system components of the present embodiment are highly integrated, and small in volume is easy to carry；Make
With catalysis oxidation isolation technics, quickly methane can be separated from VOCs sample gas gaseous mixture.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (4)
1. a kind of portable non-methane total hydrocarbons monitoring device, it is characterised in that: include:
Keep the temperature tank module: built-in quantity tube, total hydrocarbon column, ten-way valve, sampling pump；
Detector module: it is made of fid detector；
High-temperature catalytic module: including catalyst oxidation reactor and high-temperature heating equipment；
Supply module: the small size steel cylinder and an air pump and air for being respectively used to the supply of nitrogen and hydrogen comprising two
Exclusion device provides satisfactory gas for fid detector.
2. a kind of portable non-methane total hydrocarbons monitoring device according to claim 1, it is characterised in that: heat preservation tank module,
Detector module, high-temperature catalytic module, gas supply module are all set in so that in cabinet, cabinet includes pull rod and movable pulley.
3. a kind of portable non-methane total hydrocarbons monitoring device according to claim 1 or 2, it is characterised in that: incubator mould
Temperature can be stablized one between 100-150 degrees Celsius for a long time in block and determine value.
4. a kind of portable non-methane total hydrocarbons monitoring device according to claim 3, it is characterised in that: high-temperature catalytic module
Temperature is set to stablize a determining value between 300~350 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188964.6A CN109870531A (en) | 2019-03-13 | 2019-03-13 | Portable non-methane total hydrocarbons monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188964.6A CN109870531A (en) | 2019-03-13 | 2019-03-13 | Portable non-methane total hydrocarbons monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109870531A true CN109870531A (en) | 2019-06-11 |
Family
ID=66920399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910188964.6A Pending CN109870531A (en) | 2019-03-13 | 2019-03-13 | Portable non-methane total hydrocarbons monitoring device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205426869U (en) * | 2016-03-24 | 2016-08-03 | 陈霄 | Adopt portable designing's non -methane total hydrocarbon analysis module |
| CN106053652A (en) * | 2016-06-20 | 2016-10-26 | 上海市计算技术研究所 | Method and device for monitoring methane or non-methane hydrocarbon |
| CN106645461A (en) * | 2016-11-14 | 2017-05-10 | 苏州冷杉精密仪器有限公司 | Online detector for non-methane hydrocarbon and benzene compounds |
| CN106802333A (en) * | 2017-01-23 | 2017-06-06 | 宇星科技发展(深圳)有限公司 | A kind of NMHC on-line measuring device |
| CN206399909U (en) * | 2017-01-19 | 2017-08-11 | 常州磐诺仪器有限公司 | A kind of portable NMHC gas chromatograph |
| CN206756160U (en) * | 2017-05-09 | 2017-12-15 | 辽宁中博工程勘测有限公司 | A kind of total station instrument case |
-
2019
- 2019-03-13 CN CN201910188964.6A patent/CN109870531A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205426869U (en) * | 2016-03-24 | 2016-08-03 | 陈霄 | Adopt portable designing's non -methane total hydrocarbon analysis module |
| CN106053652A (en) * | 2016-06-20 | 2016-10-26 | 上海市计算技术研究所 | Method and device for monitoring methane or non-methane hydrocarbon |
| CN106645461A (en) * | 2016-11-14 | 2017-05-10 | 苏州冷杉精密仪器有限公司 | Online detector for non-methane hydrocarbon and benzene compounds |
| CN206399909U (en) * | 2017-01-19 | 2017-08-11 | 常州磐诺仪器有限公司 | A kind of portable NMHC gas chromatograph |
| CN106802333A (en) * | 2017-01-23 | 2017-06-06 | 宇星科技发展(深圳)有限公司 | A kind of NMHC on-line measuring device |
| CN206756160U (en) * | 2017-05-09 | 2017-12-15 | 辽宁中博工程勘测有限公司 | A kind of total station instrument case |
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Application publication date: 20190611 |
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| RJ01 | Rejection of invention patent application after publication |