CN207036775U - VOC on-line monitoring system - Google Patents
VOC on-line monitoring system Download PDFInfo
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- CN207036775U CN207036775U CN201720596796.0U CN201720596796U CN207036775U CN 207036775 U CN207036775 U CN 207036775U CN 201720596796 U CN201720596796 U CN 201720596796U CN 207036775 U CN207036775 U CN 207036775U
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Abstract
The utility model provides VOC on-line monitoring system.Its technical scheme is：Carrier gas channel（1）Through carrier gas pressure maintaining valve（2）With carrier gas flow stabilizing valve（3）, then through eight ways valve（6）With determining volume buret（4）After return to eight ways valve（6）Through chromatographic column（7）Return again to eight ways valve（6）With flame photometric detector（8）Connection, gas pipeline（11）Through gas stabilized-pressure valve（10）With combustion gas flow stabilizing valve（9）With flame photometric detector（8）Connection, combustion-supporting feed channel（14）Through helping gas stabilized-pressure valve（13）With combustion-supporting gas flow stabilizing valve（12）With flame photometric detector（8）Connection, in eight ways valve（6）It is provided with sample port（5）.The beneficial effects of the utility model：Practicality reasonable in design, there is the advantages of small volume, easy to detect, safe and reliable, measurement accuracy is high.
Description
Technical field
It the utility model is related to environmental monitoring technology field, especially VOC on-line monitoring system.
Background technology
VOC abbreviation VOCs, it is defined as referring under normal temperature that saturated vapor pressure is more than 70Pa, often in China
Organic compound of the boiling point below 260 DEG C is depressed, or vapour pressure is more than or equal to 10Pa with corresponding under the conditions of 20 DEG C
Volatile whole organic compounds.Comprising：Alkanes, aromatic hydrocarbons, esters, aldehydes and other etc..What is identified at present has 300
It is a variety of.It is most common to have total carbon hydrocarbon（THC）, methane, NMHC, benzene homologues（Benzene,toluene,xylene）, trichloro ethylene, three
Chloromethanes, trichloroethanes, diisocyanate（TDI）, and formaldehyde etc..
VOCs harm is very big, in 900 multiple indoor outer chemical materials having confirmed that at present and biological material, waves
Hair property organic compound（VOCs）At least more than 350 kinds（>1ppb）, wherein kind more than 20 is carcinogenic substance or mutagen.Haze
（The factor）The main component of 20% haze is that VOCs discharge is formed, and is the shape of photochemical fog according to analysis VOCs
Into main component.VOCs has extremely strong pathogenic teratogenesis threat, gently twitch often, dizzy, nausea, stupor, memory loss, when heavy
The VOC in kidney, liver, brain and nervous system detection air and in pollution sources is damaged, existing method is
The tested gas of collection, is transported to test in laboratory, and this method presence is not portable, testing result deviation is big, can not more carry out
The drawbacks of line monitors in real time.Furthermore existing VOCs detecting instruments can only measure the total content of volatile organic matter, it is impossible to detect
Go out content ratio shared by each composition.
The content of the invention
The purpose of this utility model is aiming at drawbacks described above existing for prior art, there is provided a kind of VOC
On-line monitoring system, realize gas continuous monitoring and real-time data transmission.
Technical solution adopted in the utility model is：Carrier gas channel is through carrier gas pressure maintaining valve and carrier gas flow stabilizing valve, then through eight
Port valve returns again to eight ways valve through chromatographic column and is connected with flame photometric detector with determining to return to eight ways valve after volume buret, gas pipeline
It is connected through gas stabilized-pressure valve and combustion gas flow stabilizing valve with flame photometric detector, combustion-supporting feed channel is through helping gas stabilized-pressure valve and combustion-supporting gas
Flow stabilizing valve is connected with flame photometric detector, and sample port is provided with eight ways valve.
The beneficial effects of the utility model：Practicality reasonable in design, there is small volume, easy to detect, safe and reliable, measurement essence
The advantages of high to be spent, realizes gas continuous monitoring and real-time data transmission, efficient by VOC measures in real time,
Solve the problems, such as to measure the benzene homologues of the difficult desorption of easily absorption simultaneously, improve the accuracy of detection, improve environmental quality；It can realize
A variety of VOCs in real-time online, continuous monitoring pollution sources and environment in addition to total carbon hydrocarbon.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in figure 1, VOC on-line monitoring system, it is mainly by carrier gas channel 1, carrier gas pressure maintaining valve 2, load
Gas flow stabilizing valve 3, determine volume buret 4, sample port 5, eight ways valve 6, chromatographic column 7, flame photometric detector 8, combustion gas flow stabilizing valve 9, combustion
Gas pressure maintaining valve 10, gas pipeline 11, combustion-supporting gas flow stabilizing valve 12, gas stabilized-pressure valve 13 and combustion-supporting feed channel 14 is helped to form.Carrier gas pipe
Road 1 returns to eight ways valve 6 through chromatographic column 7 through carrier gas pressure maintaining valve 2 and carrier gas flow stabilizing valve 3, then through eight ways valve 6 and after determining volume buret 4
Return again to eight ways valve 6 to be connected with flame photometric detector 8, gas pipeline 11 is through gas stabilized-pressure valve 10 and combustion gas flow stabilizing valve 9 and fire
Flame photometric detector 8 connects, and combustion-supporting feed channel 14 is through helping gas stabilized-pressure valve 13 and combustion-supporting gas flow stabilizing valve 12 and flame photometric detection
Device 8 is connected, and sample port 5 is provided with eight ways valve 6.
Utility model operating process is as follows：Carrier gas, through carrier gas pressure maintaining valve 2 and carrier gas flow stabilizing valve 3, then is passed through by carrier gas channel 1
Eight ways valve 6 returns again to eight ways valve 6 through chromatographic column 7 and is connected with flame photometric detector 8 with determining to return to eight ways valve 6 after volume buret 4,
Combustion gas is connected by gas pipeline 11 through gas stabilized-pressure valve 10 and combustion gas flow stabilizing valve 9 with flame photometric detector 8, and combustion-supporting gas passes through
Combustion-supporting feed channel 14 is through helping gas stabilized-pressure valve 13 and combustion-supporting gas flow stabilizing valve 12 to be connected with flame photometric detector 8.The utility model
Gas continuous monitoring and real-time data transmission are realized, passes through the efficient measurement, while solve to survey in real time of VOC
The problem of benzene homologues of the difficult desorption of amount easily absorption, the accuracy of detection is improved, improves environmental quality；Can realize real-time online,
A variety of VOCs in continuous monitoring pollution sources and environment in addition to total carbon hydrocarbon.
Claims (1)
1. VOC on-line monitoring system, it is characterised in that：Carrier gas channel（1）Through carrier gas pressure maintaining valve（2）And carrier gas
Flow stabilizing valve（3）, then through eight ways valve（6）With determining volume buret（4）After return to eight ways valve（6）Through chromatographic column（7）Return again to eight ways valve
（6）With flame photometric detector（8）Connection, gas pipeline（11）Through gas stabilized-pressure valve（10）With combustion gas flow stabilizing valve（9）With flame
Photometric detector（8）Connection, combustion-supporting feed channel（14）Through helping gas stabilized-pressure valve（13）With combustion-supporting gas flow stabilizing valve（12）With flame light
Spend detector（8）Connection, in eight ways valve（6）It is provided with sample port（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720596796.0U CN207036775U (en) | 2017-05-26 | 2017-05-26 | VOC on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720596796.0U CN207036775U (en) | 2017-05-26 | 2017-05-26 | VOC on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036775U true CN207036775U (en) | 2018-02-23 |
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ID=61469942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720596796.0U Active CN207036775U (en) | 2017-05-26 | 2017-05-26 | VOC on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207036775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187037A (en) * | 2019-07-04 | 2019-08-30 | 山东大学 | The measurement system and method for 57 kinds of volatile organic contents in surrounding air |
-
2017
- 2017-05-26 CN CN201720596796.0U patent/CN207036775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187037A (en) * | 2019-07-04 | 2019-08-30 | 山东大学 | The measurement system and method for 57 kinds of volatile organic contents in surrounding air |
| CN110187037B (en) * | 2019-07-04 | 2021-06-04 | 山东大学 | System and method for measuring content of 57 volatile organic compounds in ambient air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180821 Address after: 257091 B9 89 block, hi tech corridor, intersection of East five road and Fenhe Road, Dongying, Shandong. Patentee after: Shandong Haihui Environmental Technology Co. Ltd. Address before: 257100 Jinshui North District, Dongying, Shandong Patentee before: Wang Xinfeng |
|
| TR01 | Transfer of patent right |