CN203324238U - Thermal conductivity detector with rapid cooling function - Google Patents
Thermal conductivity detector with rapid cooling function Download PDFInfo
- Publication number
- CN203324238U CN203324238U CN2013203846573U CN201320384657U CN203324238U CN 203324238 U CN203324238 U CN 203324238U CN 2013203846573 U CN2013203846573 U CN 2013203846573U CN 201320384657 U CN201320384657 U CN 201320384657U CN 203324238 U CN203324238 U CN 203324238U
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- thermal conductivity
- conductivity detector
- tcd
- temperature
- semiconductor refrigeration
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Abstract
The utility model relates to a thermal conductivity detector with the rapid cooling function, wherein the thermal conductivity detector is frequently used in various gas chromatographs. The thermal conductivity detector is formed by a thermal conductivity detector body and semiconductor refrigeration sheets, the semiconductor refrigeration sheets are closely connected with the thermal conductivity detector body through high-temperature-resistant ceramic thermal conducting sheets to form a whole, the thermal conductivity detector body is formed by a thermal conductivity detector temperature sensor, thermal conductivity detector thermal conduction ponds and thermal conductivity detector inner heaters, and the semiconductor refrigeration sheets are closely connected with the thermal conductivity detector body through the high-temperature-resistant ceramic thermal conducting sheets. According to the thermal conductivity detector, the semiconductor refrigeration sheet is stable in work performance and low in energy consumption. The thermal conductivity detector body and the semiconductor refrigeration sheets are controlled through a host computer temperature control part of one gas chromatograph, and therefore the gradient constant temperature of the thermal conductivity detector can be achieved. By means of the rapid cooling detector function, the carrier gas use quantity of the gas chromatographs can be effectively reduced, and the test time can be shortened.
Description
Technical field
The utility model relates to a kind of thermal conductivity detector (TCD) with quick cooling function that all kinds of gas chromatographs are commonly used, and belong to the very general non-destructive concentration type of gas chromatography instrument and detect, be a kind of chemical analysis proving installation.
Background technology
At present, in the detecting device of all kinds of gas chromatographs, thermal conductivity detector (TCD) uses very generally, but all kinds of thermal conductivity detector (TCD) all needs to continue logical carrier gas cooling after using or use the mode such as air-cooled, water-cooled to lower the temperature, and needs the time longer.Design a kind of thermal conductivity detector (TCD) with quick cooling function, realize in the stratographic analysis testing process cooling and various gradient increased temperature, constant temperature needs to detecting device fast, effectively shorten detecting device temperature fall time in experimentation, improve analytical test efficiency, the analytical test met under all kinds of gas chromatograph complex situations is very necessary.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of thermal conductivity detector (TCD) with quick cooling function that provides all kinds of gas chromatographs to use meets the requirement that thermal conductivity detector (TCD) uses rear fast cooling or exact constant temperature.
The technical solution of the utility model is:
A kind of thermal conductivity detector (TCD) with quick cooling function of the utility model, consist of thermal conductivity detector (TCD) and semiconductor chilling plate, and described semiconductor chilling plate closely connects into an integral body by refractory ceramics conducting strip and thermal conductivity detector (TCD) main body; Described thermal conductivity detector (TCD) consists of thermal conductivity detector (TCD) temperature sensor, thermal conductivity detector (TCD) heat conduction pond and thermal conductivity detector (TCD) internal heater.
Thermal conductivity detector (TCD) of the present utility model can be the thermal conductivity detector (TCD) of plurality of specifications, its outer wall closely is connected with semiconductor chilling plate by the ceramic insulation conducting strip, during use, thermal conductivity detector (TCD) is by original working method work, realize the fast cooling of thermal conductivity detector (TCD) when it need to be lowered the temperature by semiconductor chilling plate work refrigeration, realize cooling fast.
Advantage of the present utility model:
1, the semiconductor chilling plate technology maturation that the utility model is used, its DC high-power cooling piece stable work in work, energy consumption is low; 2, use refractory ceramics conducting strip energy quick heat radiating between semiconductor chilling plate and thermal conductivity detector (TCD), good insulation effect is arranged simultaneously, the impact of electric current on detecting device while avoiding cooling piece work; 3, the work temperature probe of cooling piece can directly utilize former thermal conductivity detector (TCD) heating temperature probe itself, realizes and the coupling of the inner heating temperature control circuit of detecting device, effectively reduces costs; 4, thermal conductivity detector (TCD) starts fast cooling after use, can at short notice detector temperature be down to reasonable temperature; 5, pass through the control of the main frame temperature control part of gas chromatograph to thermal conductivity detector (TCD) and cooling piece, can realize the gradient constant temperature of detecting device; 6, can effectively reduce the carrier gas consumption of gas chromatograph by quick cooling detector functions, shorten experimental period.
The accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation with thermal conductivity detector (TCD) of quick cooling function of the utility model.
In figure: 1. semiconductor chilling plate, 2. thermal conductivity detector (TCD) main body, 3. refractory ceramics conducting strip, 4. thermal conductivity detector (TCD) temperature sensor, 5. thermal conductivity detector (TCD) heat conduction pond, 6. thermal conductivity detector (TCD) internal heater.
Embodiment
Below in conjunction with accompanying drawing, the utility model is conducted further description:
In Fig. 1, a kind of thermal conductivity detector (TCD) with quick cooling function of the utility model, consist of thermal conductivity detector (TCD) and semiconductor chilling plate, and described semiconductor chilling plate 1 closely connects into an integral body by refractory ceramics conducting strip 3 and thermal conductivity detector (TCD) main body 2; Described thermal conductivity detector (TCD) 2 consists of thermal conductivity detector (TCD) temperature sensor 4, thermal conductivity detector (TCD) heat conduction pond 5 and thermal conductivity detector (TCD) internal heater 6.The outside of described quick cooling function thermal conductivity detector (TCD) has two chip semiconductor cooling pieces 1, semiconductor chilling plate 1 closely to be connected with the employing refractory ceramics conducting strip 3 between thermal conductivity detector (TCD).
When the utility model is used as a detection part of gas chromatograph, for detections such as gas concentrations, during use, the control circuit of gas chromatograph is by thermal conductivity detector (TCD) temperature sensor 4 detector for measuring internal temperatures, by 6 pairs of detecting devices of thermal conductivity detector (TCD) internal heater, heat up, realize detection at high temperature, carry out the fast-refrigerating cooling by semiconductor chilling plate 1 work when detection needs to lower the temperature after finishing, meet the quick cooling requirement of thermal conductivity detector (TCD); Thermal conductivity detector (TCD) internal heater 6 and semiconductor chilling plate 1 associated working simultaneously can realize that gradient or curve heat up, cooling, meets the constant temperature requirement of different experimental conditions.
Claims (2)
1. the thermal conductivity detector (TCD) with quick cooling function, consist of thermal conductivity detector (TCD) (2) and semiconductor chilling plate (1), it is characterized in that: described semiconductor chilling plate (1) closely connects into an integral body by refractory ceramics conducting strip (3) and thermal conductivity detector (TCD) main body (2); Described thermal conductivity detector (TCD) (2) consists of thermal conductivity detector (TCD) temperature sensor (4), thermal conductivity detector (TCD) heat conduction pond (5) and thermal conductivity detector (TCD) internal heater (6).
2. according to the described a kind of thermal conductivity detector (TCD) with quick cooling function of claims 1, it is characterized in that: there are two chip semiconductor cooling pieces (1) outside of described quick cooling function thermal conductivity detector (TCD); Between semiconductor chilling plate (1) and thermal conductivity detector (TCD), adopt refractory ceramics conducting strip (3) closely to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203846573U CN203324238U (en) | 2013-07-01 | 2013-07-01 | Thermal conductivity detector with rapid cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203846573U CN203324238U (en) | 2013-07-01 | 2013-07-01 | Thermal conductivity detector with rapid cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324238U true CN203324238U (en) | 2013-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203846573U Expired - Fee Related CN203324238U (en) | 2013-07-01 | 2013-07-01 | Thermal conductivity detector with rapid cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324238U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861779A (en) * | 2017-02-20 | 2017-06-20 | 广东工业大学 | A kind of segmented micro-fluidic chip temperature regulating device |
| CN107328846A (en) * | 2017-08-10 | 2017-11-07 | 中国科学院长春应用化学研究所 | Mass spectrum sampling system and cooling device |
| CN108918743A (en) * | 2018-07-10 | 2018-11-30 | 中国科学院电子学研究所 | Micro thermal conductivity detector |
| CN109406530A (en) * | 2018-10-10 | 2019-03-01 | 南京佳业检测工程有限公司 | A kind of non-destructive testing device of chemical emission combustion furnace |
-
2013
- 2013-07-01 CN CN2013203846573U patent/CN203324238U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861779A (en) * | 2017-02-20 | 2017-06-20 | 广东工业大学 | A kind of segmented micro-fluidic chip temperature regulating device |
| CN107328846A (en) * | 2017-08-10 | 2017-11-07 | 中国科学院长春应用化学研究所 | Mass spectrum sampling system and cooling device |
| CN108918743A (en) * | 2018-07-10 | 2018-11-30 | 中国科学院电子学研究所 | Micro thermal conductivity detector |
| CN108918743B (en) * | 2018-07-10 | 2020-02-04 | 中国科学院电子学研究所 | Miniature thermal conductivity detector |
| CN109406530A (en) * | 2018-10-10 | 2019-03-01 | 南京佳业检测工程有限公司 | A kind of non-destructive testing device of chemical emission combustion furnace |
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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: 20131204 Termination date: 20140701 |
|
| EXPY | Termination of patent right or utility model |