CN213875557U - Benzene series fourteen-way valve gas circuit system - Google Patents
Benzene series fourteen-way valve gas circuit system Download PDFInfo
- Publication number
- CN213875557U CN213875557U CN202022748241.8U CN202022748241U CN213875557U CN 213875557 U CN213875557 U CN 213875557U CN 202022748241 U CN202022748241 U CN 202022748241U CN 213875557 U CN213875557 U CN 213875557U
- Authority
- CN
- China
- Prior art keywords
- interface
- column
- fourteen
- way valve
- aromatic hydrocarbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The utility model discloses a benzene series fourteen logical valve gas circuit system belongs to gaseous detection technology field. The device comprises a fourteen-way valve, an aromatic hydrocarbon quantitative ring, a total hydrocarbon quantitative ring, an aromatic hydrocarbon column, a total hydrocarbon column and a methane column; the fourteen-way valve is sequentially provided with a first interface to a fourteenth interface in a clockwise sequence. By arranging one path of sample inlet, two FID detectors, three paths of carrier gas and switching of the fourteen-way valve, various organic gases can be detected simultaneously, so that the detection efficiency is greatly improved, and the detection gas path structure is simplified; and a back flushing gas circuit is added, so that the back flushing can be more conveniently carried out on the total hydrocarbon column and the methane column.
Description
Technical Field
The utility model relates to a benzene series fourteen logical valve gas circuit system belongs to gaseous detection technical field.
Background
The FID detector, known collectively as a flame ionization detector, is a high sensitivity, universal detector. It responds to almost all organic compounds, and generally, FID can be detected only in places with carbon-hydrogen bonds, so that FID is generally considered to be a universal detector for hydrocarbon organic compounds. And has no or little response to inorganic substances, inert gases, or substances that do not dissociate in the flame, etc. The sensitivity of FID is 100-10000 times higher than that of a thermal conductivity detector, the detection limit reaches 10-13g/s, the FID is not sensitive to temperature and quick in response, is suitable for being connected with an open tubular column to separate complex samples, has the linear range of 7 th power of 10, is the best means for detecting hydrocarbons in a gas chromatography detector, and is widely used for detecting volatile hydrocarbons and a plurality of carbon-containing compounds. At present, detection of various gases needs to be carried out step by step, and multiple times of detection needs to be carried out, so that the detection efficiency is low. Therefore, the benzene series fourteen-way valve gas circuit system is designed, can detect multiple gases simultaneously, improves the detection efficiency, and can perform back flushing.
Disclosure of Invention
The utility model discloses the technical problem that will solve lies in: the utility model provides a benzene series fourteen way valve gas circuit system, it has solved and has used the FID detector to detect multiple gas at present, and detection efficiency remains the problem that improves.
The utility model discloses the technical problem that will solve takes following technical scheme to realize:
a benzene series fourteen-way valve gas circuit system comprises a fourteen-way valve, an aromatic hydrocarbon quantitative ring, a total hydrocarbon quantitative ring, an aromatic hydrocarbon column, a total hydrocarbon column and a methane column;
the fourteen-way valve is sequentially provided with a first interface to a fourteenth interface in a clockwise sequence;
wherein:
the first interface is connected with the sample outlet;
the second interface is connected with a sample inlet, and sample gas is introduced into the sample inlet;
the third interface is connected with the sixth interface through an aromatic hydrocarbon quantitative ring;
the fourth interface is connected with a third gas-carrying inlet;
the fifth interface is connected with an aromatic hydrocarbon column, and the aromatic hydrocarbon column is connected with a second FID detector;
the seventh interface and the fourteenth interface are connected through a total hydrocarbon quantification ring;
the eighth interface is connected with the twelfth interface through a total hydrocarbon column, and two ends of the methane column are connected with two ends of the total hydrocarbon column in parallel through a three-way valve;
the ninth interface is connected with the vent;
the tenth interface is connected with the second carrier gas inlet;
the eleventh interface is connected with the first FID detector;
the thirteenth interface is connected to the first carrier gas inlet.
As a preferred example, the sample gas comprises THC, CH4、C6H6、C7H8、C8H10At least one of them.
The utility model has the advantages that: by arranging one path of sample inlet, two FID detectors, three paths of carrier gas and switching of the fourteen-way valve, various organic gases can be detected simultaneously, so that the detection efficiency is greatly improved, and the detection gas path structure is simplified; and a back flushing gas circuit is added, so that the back flushing can be more conveniently carried out on the total hydrocarbon column and the methane column.
Drawings
Fig. 1 is a schematic structural view of the fourteen-way valve of the present invention in the on state;
fig. 2 is a schematic structural diagram of the fourteen-way valve of the present invention in a closed state.
In the figure: the system comprises a fourteen-way valve 1, an aromatic hydrocarbon quantification ring 2, a total hydrocarbon quantification ring 3, an aromatic hydrocarbon column 4, a total hydrocarbon column 5, a methane column 6, a sample outlet 7, a sample inlet 8, a third carrier gas inlet 9, a second FID detector 10, a three-way valve 11, a vent 12, a second carrier gas inlet 13, a first FID detector 14, a first carrier gas inlet 15, a first interface 101, a second interface 102, a third interface 103, a fourth interface 104, a fifth interface 105, a sixth interface 106, a seventh interface 107, an eighth interface 108, a ninth interface 109, a tenth interface 110, an eleventh interface 111, a twelfth interface 112, a thirteenth interface 113 and a fourteenth interface 114.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.
Examples
As shown in fig. 1 and 2, a benzene series fourteen-way valve gas circuit system comprises a fourteen-way valve 1, an aromatic hydrocarbon quantitative ring 2, a total hydrocarbon quantitative ring 3, an aromatic hydrocarbon column 4, a total hydrocarbon column 5 and a methane column 6;
the fourteen-way valve 1 is sequentially provided with a first interface 101 to a fourteenth interface 114 in a clockwise sequence;
wherein:
the first interface 101 is connected with the sample outlet 7;
the second interface 102 is connected with the sample inlet 8, and the sample inlet 8 is filled with sample gas;
the third interface 103 is connected with the sixth interface 106 through an aromatic hydrocarbon quantitative ring 2;
the fourth interface 104 is connected with a third carrier gas inlet 9;
the fifth interface 105 is connected with the aromatic hydrocarbon column 4, and the aromatic hydrocarbon column 4 is connected with the second FID detector 10;
the seventh interface 107 is connected with the fourteenth interface 114 through the total hydrocarbon quantification ring 3;
the eighth interface 108 is connected with the twelfth interface 112 through the total hydrocarbon column 5, and two ends of the methane column 6 are connected in parallel at two ends of the total hydrocarbon column 5 through the three-way valve 11; the methane column 6 and the total hydrocarbon column 5 are switched by the three-way valves 11 at the two ends and are respectively communicated, namely the methane column 6 and the total hydrocarbon column 5 are respectively connected into the gas circuit. During back blowing, the three-way valve 11 is also used for switching to respectively conduct back blowing.
The ninth interface 109 is connected with the vent 12;
the tenth port 110 is connected to the second carrier gas inlet 13;
the eleventh interface 111 is connected to the first FID detector 14;
the thirteenth port 113 is connected to the first carrier gas inlet 15.
The FID detector is connected with the damping tube.
The working principle is as follows:
as shown in fig. 1, the intake state:
(1) the sample inlet 8 is filled with sample gas, and the sample gas enters the aromatic hydrocarbon quantitative ring 2 through the second interface 102 and the third interface 103 which are communicated; the total hydrocarbon quantitative ring 3 enters through a sixth interface 106 and a seventh interface 107 which are communicated with each other, and is finally connected with a sample outlet 7;
(2) the first carrier gas inlet 15 performs back flushing on the total hydrocarbon column 5 and the methane column 6, the second carrier gas inlet 13 performs purging on the first FID detector 14, and the third carrier gas inlet 9 performs purging on the aromatic hydrocarbon column 4 and the second FID detector 10.
As shown in fig. 2, the sampling state:
(1) the third carrier gas inlet 9 fills carrier gas into the fourth interface 104, pushes the sample gas to sequentially pass through the aromatic hydrocarbon quantitative ring 2 and the aromatic hydrocarbon column 4, and enters the second FID detector 10 for detection;
(2) the first carrier gas inlet 15 fills carrier gas into the thirteenth port 113, and pushes the sample gas to enter the first FID detector 14 for detection through the total hydrocarbon quantification ring 3, the total hydrocarbon column 5, and the methane column 6.
By arranging the sample inlet 8, the two FID detectors and the three carrier gases and depending on the switching of the fourteen-way valve 1, various organic gases can be detected simultaneously, the detection efficiency is greatly improved, and the detection gas path structure is simplified; and a back-blowing gas circuit is added, so that the total hydrocarbon column 5 and the methane column 6 can be back-blown more conveniently.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A benzene series fourteen-way valve gas circuit system is characterized by comprising a fourteen-way valve, an aromatic hydrocarbon quantitative ring, a total hydrocarbon quantitative ring, an aromatic hydrocarbon column, a total hydrocarbon column and a methane column;
the fourteen-way valve is sequentially provided with a first interface to a fourteenth interface in a clockwise sequence;
wherein:
the first interface is connected with the sample outlet;
the second interface is connected with a sample inlet, and sample gas is introduced into the sample inlet;
the third interface is connected with the sixth interface through an aromatic hydrocarbon quantitative ring;
the fourth interface is connected with a third gas-carrying inlet;
the fifth interface is connected with an aromatic hydrocarbon column, and the aromatic hydrocarbon column is connected with a second FID detector;
the seventh interface and the fourteenth interface are connected through a total hydrocarbon quantification ring;
the eighth interface is connected with the twelfth interface through a total hydrocarbon column, and two ends of the methane column are connected with two ends of the total hydrocarbon column in parallel through a three-way valve;
the ninth interface is connected with the vent;
the tenth interface is connected with the second carrier gas inlet;
the eleventh interface is connected with the first FID detector;
the thirteenth interface is connected to the first carrier gas inlet.
2. The benzene series fourteen-way valve gas circuit system according to claim 1, wherein the sample gas comprises THC and CH4、C6H6、C7H8、C8H10At least one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022748241.8U CN213875557U (en) | 2020-11-24 | 2020-11-24 | Benzene series fourteen-way valve gas circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022748241.8U CN213875557U (en) | 2020-11-24 | 2020-11-24 | Benzene series fourteen-way valve gas circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213875557U true CN213875557U (en) | 2021-08-03 |
Family
ID=77039291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022748241.8U Active CN213875557U (en) | 2020-11-24 | 2020-11-24 | Benzene series fourteen-way valve gas circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213875557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144493A (en) * | 2022-06-27 | 2022-10-04 | 山东光测环境科技有限公司 | Gas circuit structure of on-line monitoring analyzer |
-
2020
- 2020-11-24 CN CN202022748241.8U patent/CN213875557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115144493A (en) * | 2022-06-27 | 2022-10-04 | 山东光测环境科技有限公司 | Gas circuit structure of on-line monitoring analyzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102128894B (en) | Online analytical chromatograph and chromatographic detection method for gases in insulating oil | |
| CN104849374A (en) | Non-methane hydrocarbon analysis equipment and method | |
| CN111579694B (en) | System and method for analyzing content of trace impurities in deuterium-tritium mixed gas | |
| CN213875557U (en) | Benzene series fourteen-way valve gas circuit system | |
| CN209471083U (en) | A kind of non-methane total hydrocarbons content detection device | |
| Luong et al. | Multidimensional gas chromatography for the characterization of permanent gases and light hydrocarbons in catalytic cracking process | |
| CN113155988A (en) | Non-methane total hydrocarbon detection system and method based on single valve | |
| CN109490443A (en) | A kind of non-methane total hydrocarbons content detection device and method | |
| CN111323525B (en) | Non-methane total hydrocarbon and benzene series concentration on-line analysis and detection device | |
| Han et al. | Micro-fabricated packed metal gas preconcentrator for enhanced monitoring of ultralow concentration of isoprene | |
| CN107643352A (en) | NMHC detection means and method | |
| CN203758978U (en) | Automatic continuous determination device for volume content of greenhouse gases in atmosphere | |
| CN202305489U (en) | Chromatographic instrument for detecting failure of SF6 electric equipment | |
| CN101275931B (en) | Method for detecting trace quantity SOX in hydrogen using adsorption concentration | |
| CN201780285U (en) | Universal device for analyzing impurities in high-purity non-corrosive gas | |
| CN112986442A (en) | Oil-gas integrated detection gas chromatograph for high-voltage electrical equipment | |
| CN2616907Y (en) | Gaseous phase chromatograph with three detectors | |
| CN104614474A (en) | Gas circuit configuration method for measuring three major greenhouse gases by using double-valve system | |
| CN209311403U (en) | Gas-chromatography non-methane total hydrocarbons detection device | |
| CN212180697U (en) | Online analysis device for mixed gas | |
| CN212568651U (en) | Non-methane total hydrocarbon detection device | |
| CN216350541U (en) | Airtight environment air gas detection and analysis device in warehouse | |
| CN209979564U (en) | Gas chromatographic analyzer | |
| CN116068107A (en) | Device and method for separating components of dissolved gas in high-precision transformer oil | |
| CN214895052U (en) | Real-time detection device for methane and non-methane total hydrocarbons |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |