CN212207217U - Gas chromatograph for non-methane total hydrocarbon and benzene series substances of gas sample - Google Patents
Gas chromatograph for non-methane total hydrocarbon and benzene series substances of gas sample Download PDFInfo
- Publication number
- CN212207217U CN212207217U CN202020788494.5U CN202020788494U CN212207217U CN 212207217 U CN212207217 U CN 212207217U CN 202020788494 U CN202020788494 U CN 202020788494U CN 212207217 U CN212207217 U CN 212207217U
- Authority
- CN
- China
- Prior art keywords
- detector
- gas
- instrument body
- chromatographic column
- sample
- 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
Abstract
The utility model discloses a gas chromatograph of non-methane total hydrocarbon of gaseous sample and benzene series, its structure includes instrument body, thermostatic chamber, vaporizer, detector, signal amplifier and display, the thermostatic chamber is inside to be equipped with the chromatographic column, the right side upper portion of instrument body is equipped with sample entry and exhaust outlet, the sample entry with the vaporizer is connected, instrument body rear portion is equipped with the mobile phase connecting pipe, just the mobile phase connecting pipe communicates with the vaporizer, chromatographic column one end with the vaporizer is connected, the chromatographic column other end with the detector is connected, the upper portion of detector with exhaust outlet is connected, signal amplifier with the detector is connected, the display embedding sets up in the right side surface of instrument body, and signal amplifier with the display is connected; the utility model has the advantages of simple structure, small volume, low cost and convenient operation.
Description
Technical Field
The utility model relates to a gas chromatograph technical field especially relates to a gas chromatograph of non-methane total hydrocarbon of gaseous sample and benzene series thing.
Background
The principle of the chromatographic instrument is that the mixture is separated by utilizing the difference of boiling point, polarity and adsorption property of the material, the sample to be analyzed is gasified in a gasification chamber and then is carried into a chromatographic column by inert gas, the column contains a liquid or solid fixed phase, each component in the sample tends to form distribution or adsorption balance between the mobile phase and the fixed phase, along with the flowing of carrier gas, the components of the sample are repeatedly distributed or adsorbed and desorbed in the movement, the component with high distribution concentration in the carrier gas firstly flows out of the chromatographic column, and the component with high distribution concentration in the fixed phase flows out after being distributed. The existing gas chromatograph has complex structure, large occupied space, high investment cost and inconvenient operation.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a gas chromatograph for non-methane total hydrocarbons and benzene series in a gas sample.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a gas chromatograph for non-methane total hydrocarbons and benzene series of gas samples comprises an instrument body, a thermostatic chamber, a vaporizing chamber, a detector, a signal amplifier and a display, wherein the thermostatic chamber is arranged at the lower part of the left side of the instrument body, a chromatographic column is arranged inside the thermostatic chamber, a sample inlet and an exhaust gas outlet are arranged on the upper part of the right side of the instrument body, the vaporizing chamber is arranged in the upper part of the right side of the instrument body, the sample inlet is connected with the vaporizing chamber, a mobile phase connecting pipe is arranged at the rear part of the instrument body and is communicated with the vaporizing chamber, one end of the chromatographic column is connected with the vaporizing chamber, the detector is arranged in the upper part of the left side of the instrument body, the other end of the chromatographic column is connected with the detector, the upper part of the detector is connected with the exhaust gas outlet, and the signal amplifier is arranged in the lower part of the, and the signal amplifier is connected with the detector, the display is embedded in the right side surface of the instrument body, and the signal amplifier is connected with the display.
Preferably, the gasification furnace further comprises a gas flow meter for controlling the flow of the inert gas, wherein the gas flow meter is arranged at the joint of the mobile phase connecting pipe and the gasification chamber.
Preferably, the device further comprises a soap film flowmeter, wherein the soap film flowmeter is arranged on one side of the thermostatic chamber and is connected with the detector.
Preferably, the detector is a FID detector.
Preferably, the chromatography column is a capillary chromatography column.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
the utility model provides a gas chromatograph of non-methane total hydrocarbon of gas sample and benzene series thing, get into the vaporizer with gas sample through the sample entry, mobile phase connecting pipe feeds into inert gas simultaneously, inert gas carries gas sample at the uniform velocity and adds the chromatographic column upper end quantitatively, after multicomponent mixed sample gets into the chromatographic column, because the adsorbent in the packet spectrum post is different to the adsorption affinity of every component, after a certain time, the functioning speed of each component in the chromatographic column is also different, the component that the adsorption affinity is weak is desorbed easily, leave the chromatographic column at first and get into the detector, and the component that the adsorption affinity is strongest is desorbed most easily, consequently leave the chromatographic column at last, so, each component can separate each other in the chromatographic column, it is detected in the detector to get into in order, record and show through signal amplifier connection display, the detected waste gas is discharged through a waste gas outlet; the utility model has the advantages of simple structure, small volume, low cost and convenient operation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a functional schematic diagram of the present invention;
in the figure: 1 instrument body, 101 thermostatic chamber, 102 mobile phase connecting tube, 103 display, 104 sample inlet, 105 waste gas outlet, 106 chromatographic column, 107 gasification chamber, 108 detector, 109 signal amplifier, 110 gas flowmeter, 111 soap film flowmeter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following drawings and embodiments are connected to further illustrate the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Referring to fig. 1-2, the technical solution adopted by the present invention is: a gas chromatograph for non-methane total hydrocarbons and benzene series of a gas sample comprises an instrument body 1, a thermostatic chamber 101, a vaporizing chamber 107, a detector 108, a signal amplifier 109 and a display 103, wherein the thermostatic chamber 101 is arranged at the lower part of the left side of the instrument body 1, a chromatographic column 106 is arranged in the thermostatic chamber 101, a sample inlet 104 and an exhaust outlet 105 are arranged at the upper part of the right side of the instrument body 1, the vaporizing chamber 107 is arranged in the upper part of the right side of the instrument body 1, the sample inlet 104 is connected with the vaporizing chamber 107, a mobile phase connecting pipe 102 is arranged at the rear part of the instrument body 1, the mobile phase connecting pipe 102 is communicated with the vaporizing chamber 107, one end of the chromatographic column 106 is connected with the vaporizing chamber 107, the detector 108 is arranged in the upper part of the left side of the instrument body 1, and the other end of the chromatographic column 106 is connected with the detector, the upper portion of the detector 108 is connected with the exhaust gas outlet 105, the signal amplifier 109 is arranged in the lower portion of the right side of the instrument body 1, the signal amplifier 109 is connected with the detector 108, the display 103 is embedded in the right side surface of the instrument body 1, the signal amplifier 109 is connected with the display 103, the soap dispenser further comprises a gas flow meter 110 for controlling the flow rate of the mobile phase, the gas flow meter 110 is arranged at the joint of the mobile phase connecting pipe 102 and the vaporizing chamber 107, the soap dispenser further comprises a soap film flow meter 111, the soap film flow meter 111 is arranged at one side of the thermostatic chamber 101 and is connected with the detector 108, the soap film flow meter 111 is used for detecting gas or flow rate, and the start and end time of the soap film passing through a section of volume in the glass tube is measured and calculated by combining a microprocessor and a sensitive element inside the soap dispenser, and finally, calculating the flow and visually displaying the flow.
In this embodiment, the detector 108 is a high-sensitivity general-purpose detector, which is an FID detector, and which responds to almost all organic substances, but does not respond or responds very little to inorganic substances, inert gases, or non-dissociated substances in the flame; the column 106 is a capillary column.
When in use, a gas sample enters the gasification chamber through the sample inlet 104, meanwhile, the mobile phase connecting pipe 102 is supplied with inert gas, the inert gas carrying gas sample is added to the upper end of the chromatographic column 106 at a constant speed and quantitatively, after a multi-component mixed sample enters the chromatographic column 106, since the adsorbents in the chromatography column 106 have different adsorption force for each component, after a certain time, the components will travel at different speeds in the column 106, and the less strongly adsorbed component will be readily desorbed, first leaving the column 106 to the detector 108, and the most strongly adsorbed component is the least readily desorbed, and therefore eventually leaves the column 106, in this way, the components are separated from each other in the column 106, and sequentially enter the detector 108 to be detected, recorded and displayed by the display 103 through the signal amplifier 109, and the detected exhaust gas is discharged through the exhaust gas outlet 105.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A gas chromatograph for non-methane total hydrocarbon and benzene series of a gas sample is characterized in that: including instrument body, thermostatic chamber, vaporizer, detector, signal amplifier and display, the thermostatic chamber is located the left side lower part of instrument body, the inside chromatographic column that is equipped with of thermostatic chamber, the right side upper portion of instrument body is equipped with sample entry and exhaust outlet, the vaporizer is located in the right side upper portion of instrument body, the sample entry with the vaporizer is connected, instrument body rear portion is equipped with the mobile phase connecting pipe, just the mobile phase connecting pipe communicates with the vaporizer, chromatographic column one end with the vaporizer is connected, the detector is located in the left side upper portion of instrument body, the chromatographic column other end with the detector is connected, the upper portion of detector with exhaust outlet connects, signal amplifier locates in the right side lower part of instrument body, just signal amplifier with the detector is connected, the display is embedded in the right side surface of the instrument body, and the signal amplifier is connected with the display.
2. The gas chromatograph of claim 1, wherein the gas sample is other than methane total hydrocarbons and benzene series, and wherein: the gasification furnace also comprises a gas flowmeter used for controlling the flow of the inert gas, wherein the gas flowmeter is arranged at the joint of the mobile phase connecting pipe and the gasification chamber.
3. The gas chromatograph of claim 1, wherein the gas sample is other than methane total hydrocarbons and benzene series, and wherein: the device also comprises a soap film flowmeter, wherein the soap film flowmeter is arranged on one side of the thermostatic chamber and is connected with the detector.
4. The gas chromatograph of claim 1, wherein the gas sample is other than methane total hydrocarbons and benzene series, and wherein: the detector is a FID detector.
5. The gas chromatograph of claim 1, wherein the gas sample is other than methane total hydrocarbons and benzene series, and wherein: the chromatographic column is a capillary chromatographic column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788494.5U CN212207217U (en) | 2020-05-13 | 2020-05-13 | Gas chromatograph for non-methane total hydrocarbon and benzene series substances of gas sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788494.5U CN212207217U (en) | 2020-05-13 | 2020-05-13 | Gas chromatograph for non-methane total hydrocarbon and benzene series substances of gas sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212207217U true CN212207217U (en) | 2020-12-22 |
Family
ID=73814644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020788494.5U Active CN212207217U (en) | 2020-05-13 | 2020-05-13 | Gas chromatograph for non-methane total hydrocarbon and benzene series substances of gas sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212207217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128193A (en) * | 2022-07-21 | 2022-09-30 | 天津津普利环保科技股份有限公司 | Detection device for non-methane total hydrocarbon and benzene series and application thereof |
-
2020
- 2020-05-13 CN CN202020788494.5U patent/CN212207217U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128193A (en) * | 2022-07-21 | 2022-09-30 | 天津津普利环保科技股份有限公司 | Detection device for non-methane total hydrocarbon and benzene series and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205263040U (en) | Gas chromatograph appearance and gaseous sampling device thereof | |
| Lord et al. | Fundamentals and applications of needle trap devices: a critical review | |
| CN202153220U (en) | NMHC (nonmethane hydrocarbons) measurement gas chromatograph | |
| CN101126686B (en) | Tube type pump-free type samplers | |
| CN202033333U (en) | Gas-phase adsorption-desorption device having function of automatically analyzing injected samples | |
| CN102359989B (en) | Multifunctional catalyst reaction evaluation and characterization device and application thereof | |
| Khan et al. | Analysis of low concentration reduced sulfur compounds (RSCs) in air: Storage issues and measurement by gas chromatography with sulfur chemiluminescence detection | |
| CN202330380U (en) | Gas chromatograph for non-methane hydrocarbon measurement | |
| CN212207217U (en) | Gas chromatograph for non-methane total hydrocarbon and benzene series substances of gas sample | |
| CN102230917B (en) | Analyzing device using gas phase chromatography and inverse gas phase chromatography together | |
| CN113155988A (en) | Non-methane total hydrocarbon detection system and method based on single valve | |
| Fraust et al. | Charcoal sampling tubes for organic vapor analysis by gas chromatography | |
| CN102043027B (en) | Method for evaluating absorbing performance of cigarette filter absorbing agent and testing system thereof | |
| Maria | Evaluation of Anasorb CMS and comparison with Tenax TA for the sampling of volatile organic compounds in indoor and outdoor air by breakthrough measurements | |
| CN203758978U (en) | Automatic continuous determination device for volume content of greenhouse gases in atmosphere | |
| US3719084A (en) | Means for separating organics containing from one to twenty carbons comprising series connected packed and capillary columns | |
| Jang et al. | Carbon nanotube sponges as an enrichment material for aromatic volatile organic compounds | |
| CN107727774B (en) | Multi-sensor chromatographic detector and detection method | |
| CN112798714A (en) | Detection system and method for non-methane total hydrocarbons | |
| CN205749410U (en) | A kind of gas chromatograph | |
| Dubois et al. | The analysis of carbon monoxide in urban air at the ppm level, and the normal carbon monoxide value | |
| CN204833816U (en) | Educational chromatograph | |
| CN111983062B (en) | Method for detecting trace DMAEA in air | |
| Wels | High-sensitivity method of radio gas chromatography for 3H-and 14C-labelled compounds | |
| CN102608243A (en) | Detection method of dibutyl phthalate in traditional Chinese medicinal materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |