CN2567577Y - Horizontal desorption device - Google Patents
Horizontal desorption device Download PDFInfo
- Publication number
- CN2567577Y CN2567577Y CN 02266958 CN02266958U CN2567577Y CN 2567577 Y CN2567577 Y CN 2567577Y CN 02266958 CN02266958 CN 02266958 CN 02266958 U CN02266958 U CN 02266958U CN 2567577 Y CN2567577 Y CN 2567577Y
- Authority
- CN
- China
- Prior art keywords
- joint
- desorbing
- carrier gas
- pipe
- sampling
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a horizontal heat desorbing device matching with a gas chromatograph, which is composed of a desorbing pipe, an adsorbent, a carrier gas joint, a sampling joint, a heating block, a temperature control circuit, sealing members and a radiator, wherein the middle section of the desorbing pipe is filled with the adsorbent, the external side of the desorbing pipe is provided with the heating block, one end of the desorbing pipe is connected with the carrier gas joint, and the other end of the desorbing pipe is connected with a sampling joint, the commissures of the desorbing pipe are provided with the sealing members, and the radiator is arranged at the external side of the carrier gas joint. The device of the utility model has the advantages of high desorbing rate, short testing time, simple structure, convenient operation, etc.
Description
Technical field
The utility model relates to gas chromatograph, particularly a kind of horizontal thermal desorption device.
Background technology
Sample to material composition complexity, content rareness, as airborne harmful gas after the building construction indoor decoration etc., when carrying out the gas chromatographic analysis detection, need handle by thermal desorption device, make it reach the test request of stratographic analysis the sample of gathering.THE METHOD OF THERMAL DESORPTION is: gather gaseous sample and it is concentrated with solid adsorbent, heating makes tested gaseous volatilization in the sample come out (desorb) again, but tested gas can not take place to decompose and can not produce other compounds again in the thermal desorption process, to reach the detection effect of stratographic analysis.For satisfying above requirement, except control sampling volume, heating-up temperature, flow rate of carrier gas and adsorbent were selected, the gas path layout of thermal desorption device, structural design, cell configuration were also very important.Existing thermal desorption device, structurally exist long and weak points such as the inequality of being heated, the fragile sealing difference of graphite grazing packing ring and installation difficulty height, the easy gas leakage of sampling joint and sampling inconvenience heat time heating time, so problems such as the ubiquity desorption efficiency is low, the test duration long, operation inconvenience.
Summary of the invention
The existing apparatus desorption efficiency is low in order to solve for the utility model, the test duration long, the inconvenient existing technical matters of operation, and a kind of simple in structure, easy to operate horizontal thermal desorption device is provided.
According to above-mentioned purpose, the utility model provides a kind of horizontal thermal desorption device, comprises desorption tube, adsorbent, joint, heat block, temperature control circuit, is characterized in: also have seal, heating radiator, seal is made up of nut and packing washer, and joint is divided into carrier gas joint, sampling joint; Wherein the desorption tube interlude is filled with adsorbent, the desorption tube two ends are connected with carrier gas joint, sampling joint respectively, and the junction all is equipped with seal, and the desorption tube interlude outside is equipped with heat block, heat block is connected with temperature control circuit, and the carrier gas joint is equipped with heating radiator outward.
Said apparatus, wherein packing washer is made by silastic material.
Said apparatus, joint two ends of wherein sampling all have sealing that screw thread is installed.
The utility model has been owing to taked above technical measures, and therefore horizontal thermal desorption device has short, simple in structure, easy to operate advantage of desorption efficiency height, detection time.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in drawings, in advance at desorption tube 1 interlude filling solid adsorbent 2, and fully gather micro-sample 10 in the gas.Before the test, successively with the nut 5-1 of seal 5, the two ends that silicone rubber seal packing ring 5-2 is set in desorption tube 1, stretch into respectively then in the carrier gas joint 3 and sampling joint 4 that is set with heating radiator 8, having good plastic silicon rubber closely cooperates both, fastening nut 5-1 can make the junction sealing and fixing again, install heat block 6 in desorption tube 1 outside at last, installation process is very convenient.At this moment, carrier gas joint 3 is connected with the carrier gas input media, and sampling joint 4 is connected with stopple coupon, and heat block 6 is connected with temperature control circuit 7.During test, by 6 heating of 7 pairs of heat blocks of temperature control circuit, rising along with temperature, adsorbent 2 and the absorption affinity that is adsorbed between the sample reduce gradually, by carrier gas input media control flow rate of carrier gas, under the direct purging of carrier gas 9, make the sample 10 that is adsorbed on the adsorbent 2 remove absorption, collect by stopple coupon through sampling joint 4, can carry out the stratographic analysis test.Here, the two ends of sampling joint 4 all have sealing screw thread are installed, and the sealing sampling head can be installed, and are convenient to the needle cylinder type stopple coupon and insert the sampling of sampling head rubber gasket.And heating radiator 9 plays the desorption tube effect of cooling rapidly that makes after the heating, is difficult for being subjected to heat ageing to protect flexible carrier gas input pipe.Test finishes, as long as unscrew the nut 5-1 at two ends, desorption tube 1 can be unloaded, and is easy to operate.
Claims (3)
1. a horizontal thermal desorption device comprises desorption tube, adsorbent, joint, heat block, temperature control circuit, it is characterized in that: also have seal, heating radiator, seal is made up of nut and packing washer, and joint is divided into carrier gas joint, sampling joint; Wherein the desorption tube interlude is filled with adsorbent, the desorption tube two ends are connected with carrier gas joint, sampling joint respectively, and the junction all is equipped with seal, and the desorption tube interlude outside is equipped with heat block, heat block is connected with temperature control circuit, and the carrier gas joint is equipped with heating radiator outward.
2. device according to claim 1, it is characterized in that: packing washer is made by silastic material.
3. device according to claim 1 is characterized in that: sampling joint two ends all have sealing that screw thread is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266958 CN2567577Y (en) | 2002-09-09 | 2002-09-09 | Horizontal desorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266958 CN2567577Y (en) | 2002-09-09 | 2002-09-09 | Horizontal desorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2567577Y true CN2567577Y (en) | 2003-08-20 |
Family
ID=33732665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02266958 Expired - Fee Related CN2567577Y (en) | 2002-09-09 | 2002-09-09 | Horizontal desorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2567577Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004130A (en) * | 2010-11-11 | 2011-04-06 | 天津市先权工贸发展有限公司 | Full-automatic multi-purpose adsorption instrument |
| CN103235063A (en) * | 2013-05-02 | 2013-08-07 | 中山大学 | Pretreatment device and method for analyzing flammable liquid ingredient in residual fragment of fire scene |
| CN109839295A (en) * | 2017-11-27 | 2019-06-04 | 中国科学院大连化学物理研究所 | One kind being enriched with absorption-thermal desorption device for trace samplings |
-
2002
- 2002-09-09 CN CN 02266958 patent/CN2567577Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004130A (en) * | 2010-11-11 | 2011-04-06 | 天津市先权工贸发展有限公司 | Full-automatic multi-purpose adsorption instrument |
| CN102004130B (en) * | 2010-11-11 | 2012-11-14 | 天津市先权工贸发展有限公司 | Full-automatic multi-purpose adsorption instrument |
| CN103235063A (en) * | 2013-05-02 | 2013-08-07 | 中山大学 | Pretreatment device and method for analyzing flammable liquid ingredient in residual fragment of fire scene |
| CN103235063B (en) * | 2013-05-02 | 2015-11-18 | 中山大学 | Analyze pretreating device and the method for flammable liquid composition in the residual fragment of the scene of a fire |
| CN109839295A (en) * | 2017-11-27 | 2019-06-04 | 中国科学院大连化学物理研究所 | One kind being enriched with absorption-thermal desorption device for trace samplings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110333127B (en) | Online measurement system, method and application of gas-phase semi-volatile organic compounds | |
| CN109603413B (en) | Device and method for separating hydrogen and methane in mixed gas and measuring hydrogen isotopes | |
| CN101609074B (en) | Refrigeration-type purge and trap instrument being applicable to nitric oxide | |
| CN102062767A (en) | Online sampling, enriching, thermal desorption and chromatographic sample injection device combined device for atmospheric sample | |
| CN1803252A (en) | Sample-taking adsorption tube and its hydrolyzed adsorption device | |
| CN103852370A (en) | Mobile low-temperature adsorption concentration-thermal desorption device and application method thereof | |
| CN109870341A (en) | Volatile organic matter original position cold-trap enrichment-Thermal desorption sample pretreatment device | |
| CN202599102U (en) | Fast heating and cooling desorption furnace of thermal desorption device | |
| CN211014150U (en) | Thermal desorption instrument and analysis system for volatile organic compound detection | |
| CN2567577Y (en) | Horizontal desorption device | |
| CN2567576Y (en) | Vertical heat desorption device | |
| CN110646549B (en) | Thermal desorption instrument and analysis system for volatile organic compound detection and working method thereof | |
| CN215339692U (en) | Novel portable gas chromatography mass spectrometer | |
| CN103760004B (en) | Solvent desorption device and method | |
| CN108693261A (en) | A kind of detection method and sampling apparatus of Indoor Air Benzene and total volatile organic compounds | |
| CN219399540U (en) | Adsorption component, high-low temperature component and pretreatment device | |
| CN203053764U (en) | Collecting device for light hydrocarbon components in rock samples | |
| CN109557224B (en) | Gas chromatograph with auxiliary cooling device and using method thereof | |
| CN208399446U (en) | A kind of second level pyrolysis analysis system | |
| CN204405615U (en) | A kind of thermal desorption adsorption tube | |
| CN109342618A (en) | A kind of automation pre-processing device for VOCs in gas chromatographic detection material | |
| CN215218715U (en) | Gaseous hydrocarbon isotope on-line extraction device in gas and mineral inclusion | |
| CN112763635B (en) | Gas chromatographic column, application and low-boiling-point fluorine-containing compound separation method | |
| CN203203837U (en) | Trace gas sampling connection device | |
| Twibell et al. | A splitless Curie point pyrolysis capillary inlet system for use with the adsorption wire technique of vapour analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |