CN2874493Y - Self cleaning type pyrolysis device - Google Patents
Self cleaning type pyrolysis device Download PDFInfo
- Publication number
- CN2874493Y CN2874493Y CN 200520044576 CN200520044576U CN2874493Y CN 2874493 Y CN2874493 Y CN 2874493Y CN 200520044576 CN200520044576 CN 200520044576 CN 200520044576 U CN200520044576 U CN 200520044576U CN 2874493 Y CN2874493 Y CN 2874493Y
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- utility
- model
- self cleaning
- analytic
- analysis
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Abstract
The utility model relates to a self-cleaning thermal analysis device used for the analysis of air total volatile organic compounds comprising a sampling inlet device, an analysis tube vessel, and an anti-blowing device. The utility model is characterized in that: the sample inlet device is a six-way valve. The analysis tube vessel comprises a heating system, a temperature control system, a direct round barrel stainless steel tube with bolt caps at two ends, a sealing plate, and a quartz material's poly 2.6 second phenyl benzene analysis tube; the anti-blowing device comprises a switch valve and a needle valve. With temperature controlled by chromatographic apparatus, the utility model has the advantages of short time of thermal analysis of samples, high detection sensitivity, anti-blowing and self-cleaning of attaching reagents, elimination of repeated pollution, low cost, and easy operation.
Description
Technical field
The utility model relates to a kind of gas chromatographic analysis support equipment, especially discloses a kind of self cleaning type pyrolysis device that the air total volatile organism is analyzed that is used for that carries out the direct injected express-analysis.
Background technology
The thermal analysis apparatus of current use has two kinds: 1. by the desorption chamber, sample hose, the sample introduction syringe needle, electric heater, carrier gas inlet, compositions such as cooling coil, by straight type sample hose in the desorption chamber heating and carry out pyrolysis and analyse operation, sample enters chromatographic system with " stopper " shape from the sample introduction syringe needle with carrier gas then; But because this sample hose is in heated condition always, and the time of the intensification of device heating is longer, so that the pyrolysis of sample to analyse process also longer, thereby can cause the sample pyrolysis to analyse the component peak broadens, and apparatus structure complexity, cost height.2. formed by heating furnace and sampling device, overcome the part shortcoming in 1., but sampling pipe can not reach the function of self-cleaning, repeat to do the stack that sample can cause analytic sample, disposable use can cause the significant wastage of resource again, and to heat and temperature control resolving instrument separately, gas circuit control can not directly realize by chromatograph, complex operation, occupy breadboard big quantity space, and a large amount of dead volume the when sample that parses causes sample introduction away from chromatographic column influences the accuracy of data.
Summary of the invention
The utility model technical issues that need to address provide a kind of self-cleaning thermal analysis apparatus that the air total volatile organism is analyzed that is used for, it is shorter that this device carries out the time that pyrolysis analyses to sample, the detection sensitivity height, and the self-cleaning sampling pipe is reusable, with low cost, easy to operate.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the utility model is used for the self cleaning type pyrolysis device that the air total volatile organism is analyzed, comprise sampling device, the analytic tube container, also comprise back-blowing device, described sampling device is a six-way valve, and analytic tube container and back-blowing device are connected on the six-way valve; Described analytic tube container comprises straight type drum type stainless-steel tube, the sealing gasket and poly-2 of heating system, temperature-controlling system, two ends band nut, 6-diphenyl p-phenylene analytic tube, wherein, described heating system is connected with temperature-controlling system, gather 2,6-diphenyl p-phenylene analytic tube device is in the straight type drum type stainless-steel tube of two ends band nut.
Described sampling device, analytic tube container and back-blowing device are built in the gas chromatograph.
Described back-blowing device is to be used for the switch valve that the carrier gas switch uses and the needle valve of regime flow.
The utility model is used for the thermal analysis apparatus that the air total volatile organism is analyzed, by the chromatographic apparatus temperature control, the control gas flow, be built in the gas chromatograph, do not need to increase in addition the control of gas circuit and circuit, sample is carried out the time weak point that pyrolysis is analysed, the detection sensitivity height, and can carry out blowback and self-cleaning to adsorbent, eliminate repeated contamination, and with low cost, manipulate very convenient.
Owing to taked above-mentioned scheme, the advantage that the utility model is compared with prior art had is:
1. be built in the gas chromatograph owing to the utility model, gather 2,6-diphenyl p-phenylene analytic tube is placed near injection port one end, and the sample that parses enters analytical column in the short as far as possible time, reduce the dead volume of sample introduction and the divergence loss of sample, improved the accuracy of analyzing.
2. be used for the switch valve that the carrier gas switch uses and the needle valve of regime flow owing to be equipped with one before the utility model injector device, poly-2, after 6-diphenyl p-phenylene analytic tube is resolved, can carry out blowback, reduced the error that causes to the result owing to the accumulation repeatedly of sample, and can reuse poly-2,6-diphenyl p-phenylene analytic tube.
3. because resolver is the inside that is placed on gas chromatograph, heat by the temperature control and the flow control of gas chromatograph self, temperature control and flow control, thus reduced the loaded down with trivial details of the waste of resource and operation.
Description of drawings
Fig. 1 is the structural representation of the utility model analytic tube container;
The residing state of switch valve and six-way valve when Fig. 2 is the utility model parse state;
The residing state of switch valve and six-way valve when Fig. 3 is the utility model sample introduction;
Fig. 4 is that the utility model sample introduction finishes the back when analytic tube is carried out blowback, the residing state of switch valve and six-way valve.
Among the figure: 1, nut; 2, sealing gasket; 3, gather 2,6-diphenyl p-phenylene analytic tube; 4, platinum resistance; 5, heating rod; 6, needle valve; 7, switch valve; 8, analytic tube container; 9, six-way valve; 10, permanent flow valve.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
The utility model is used for the thermal analysis apparatus that the air total volatile organism is analyzed as shown in Figure 1 and Figure 2, mainly comprises sampling device, and analytic tube container and back-blowing device is characterized in that: described sampling device is a six-way valve 9; Described analytic tube container comprises straight type drum type stainless-steel tube, sealing gasket 2, quartz material poly-2 of heating system heating rod 5, temperature-controlling system platinum resistance 4, two ends band nut 1,6-diphenyl p-phenylene analytic tube 3; Described back-blowing device is made up of switch valve 7 and needle valve 6.
Principle of work and use that the utility model is used for the thermal analysis apparatus of air total volatile organism analysis are:
Excellent poly-2 getting, 6-diphenyl p-phenylene analytic tube is put in the analytic tube container 8, is spun on the sample position as Fig. 2 six-way valve 9, and switch valve 7 is in the state of pass, and sample is parsed.The position of rotation six-way valve 9 to Fig. 3 promptly is the position of sample introduction, and the switch valve 7 of this moment is still in the position of closing, and after sample enters chromatographic column, rotates six-way valve 9 simultaneously and opens switch valve 7, as Fig. 4 the sample blowback that remains in the analytic tube is come out.
Claims (4)
1. one kind is used for the self cleaning type pyrolysis device that the air total volatile organism is analyzed, comprise sampling device, the analytic tube container, it is characterized in that: described self cleaning type pyrolysis device also comprises back-blowing device, described sampling device is a six-way valve, and analytic tube container and back-blowing device are connected on the six-way valve; Described analytic tube container comprises straight type drum type stainless-steel tube, the sealing gasket and poly-2 of heating system, temperature-controlling system, two ends band nut, 6-diphenyl p-phenylene analytic tube, wherein, described heating system is connected with temperature-controlling system, gather 2,6-diphenyl p-phenylene analytic tube device is in the straight type drum type stainless-steel tube of two ends band nut.
2. according to the described self cleaning type pyrolysis device of claim 1, it is characterized in that: described sampling device, analytic tube container and back-blowing device are built in the gas chromatograph.
3. according to the described self cleaning type pyrolysis device of claim 1, it is characterized in that: described back-blowing device is to be used for the switch valve that the carrier gas switch uses and the needle valve of regime flow.
4. according to the described self cleaning type pyrolysis device of claim 1, it is characterized in that: its material of described analytic tube is quartzy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044576 CN2874493Y (en) | 2005-08-26 | 2005-08-26 | Self cleaning type pyrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044576 CN2874493Y (en) | 2005-08-26 | 2005-08-26 | Self cleaning type pyrolysis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874493Y true CN2874493Y (en) | 2007-02-28 |
Family
ID=37781091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520044576 Expired - Fee Related CN2874493Y (en) | 2005-08-26 | 2005-08-26 | Self cleaning type pyrolysis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874493Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699569A (en) * | 2016-03-10 | 2016-06-22 | 上海福劳斯检测技术有限公司 | Self-cleaning type thermal-desorption gas chromatographic system for online total hydrocarbon analysis |
| CN113945659A (en) * | 2021-10-13 | 2022-01-18 | 江苏天瑞仪器股份有限公司 | Gas path operation adjusting method for rapid thermal cracking RoHS detector |
-
2005
- 2005-08-26 CN CN 200520044576 patent/CN2874493Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699569A (en) * | 2016-03-10 | 2016-06-22 | 上海福劳斯检测技术有限公司 | Self-cleaning type thermal-desorption gas chromatographic system for online total hydrocarbon analysis |
| CN113945659A (en) * | 2021-10-13 | 2022-01-18 | 江苏天瑞仪器股份有限公司 | Gas path operation adjusting method for rapid thermal cracking RoHS detector |
| WO2023060776A1 (en) * | 2021-10-13 | 2023-04-20 | 江苏天瑞仪器股份有限公司 | Operation regulating method for gas path of rapid thermal cracking rohs detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |