CN201844999U - Gas chromatographic thermostat - Google Patents
Gas chromatographic thermostat Download PDFInfo
- Publication number
- CN201844999U CN201844999U CN2010205893560U CN201020589356U CN201844999U CN 201844999 U CN201844999 U CN 201844999U CN 2010205893560 U CN2010205893560 U CN 2010205893560U CN 201020589356 U CN201020589356 U CN 201020589356U CN 201844999 U CN201844999 U CN 201844999U
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- China
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- inner core
- metal inner
- chromatographic column
- constant temperature
- heating rod
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Abstract
The utility model discloses a gas chromatographic thermostat, which comprises a chromatographic column and a heating rod, and is characterized in that the chromatographic column is fixedly arranged on a metal inner core by pressing rings and a fastening ring; after the heating rod and an over temperature protection bimetallic strip are arranged in the metal inner core, the metal inner core is fixedly arranged on a fixing frame; a temperature probe is arranged on the fastening ring; the metal inner core is arranged in a lagging casing provided with a heat insulation layer; and a gas inlet pipe and a gas outlet pipe which are connected with the chromatographic column are arranged on the lagging casing. Compared with the prior art, the thermostat has the advantages of simple structure, small volume, high and even heating speed, and greatly improved analysis accuracy and precision, and is convenient to use.
Description
Technical field
The utility model relates to quality analysis and detection technique field, specifically a kind of gas chromatography constant temperature oven.
Background technology
At present, the constant temperature oven that gas chromatography is used, use be air bath, utilize the air in the heating arrangement heated constant temperature case, chromatographic column is in the heated air.The air bath constant temperature oven has two kinds, a kind of have a fan, and a kind of do not have a fan.The constant temperature oven that fan is arranged, fan can be accelerated cross-ventilation, makes constant temperature the temperature inside the box even, but has the constant temperature oven volume of fan huge.The constant temperature oven that does not have fan utilizes the thermal diffusion and the heat conduction of air self, makes non-uniform temperature in the constant temperature oven, the monitoring of inconvenient temperature.The gas chromatography constant temperature oven of prior art influences the post effect of chromatographic column, and the accuracy and the precision of analysis also are greatly affected.
Summary of the invention
The purpose of this utility model is a kind of gas chromatography constant temperature oven that designs at the deficiencies in the prior art, it adopts the thermostatic mode of metal bath heating, utilize metal heat little, the characteristics that coefficient of heat conductivity is big, make even, the Fast Heating of temperature energy of constant temperature oven, and volume is also little, heat insulation, high insulating effect, and very attractive in appearance.
The concrete technical scheme that realizes the utility model purpose is: a kind of gas chromatography constant temperature oven, comprise: chromatographic column and heating rod, being characterized in that chromatographic column is fixed by trim ring, tight loop is arranged on the metal inner core, is fixedly installed on the fixed mount behind built-in heating rod of metal inner core and the overtemperature prote bimetallic strip; Tight loop is provided with temp probe; The metal inner core is arranged in the lagging casing that is provided with thermofin, and lagging casing is provided with gas inlet tube and the gas outlet tube that is connected with chromatographic column.
Described metal inner core is cylindrical, twines chromatographic column on its cylinder, and chromatographic column is provided with tight loop outward, and tight loop is fixedly installed on chromatographic column on the cylinder of metal inner core, and it is upper and lower to be compressed by trim ring.
Described lagging casing is the circular insulation can of teflon material, and its bottom is provided with aluminum alloy bottom plate.
Described heating rod is embedded in the interior in-core of metal mutually with the overtemperature prote bimetallic strip, compresses with the metal inner core to contact.
The utility model compared with prior art has simple in structure, and volume is little, and is easy to use, and firing rate is fast and even, and the accuracy and the precision of analysis improve greatly.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model schematic appearance.
Embodiment
The utility model is installed and used like this: after chromatographic column 5 being wound on the metal inner core 11 of aluminium alloy; put the tight loop 12 of aluminium alloy; on; under put trim ring 13; after temp probe 6 and overtemperature prote bimetallic strip 4 and single-ended heating rod 9 being fixed on the fixed mount 3 of aluminium alloy; with temp probe 6; in the metal inner core 11 that overtemperature prote bimetallic strip 4 and single-ended heating rod 9 insert respectively and the tight loop 12 of aluminium alloy; overtemperature prote bimetallic strip 4 compresses with metal inner core 11 with single-ended heating rod 9 and contacts; temp probe 6 compresses with tight loop 12 and contacts; cover thermofin 8 then; put into the lagging casing 7 of teflon; by screw fixed mount 3 is fixedly installed in the lagging casing 7, new type of metal bath constant temperature oven just installs like this.Then temp probe 6, heating rod 9 and overtemperature prote bimetallic strip 4 are connected with the heating controller of peripheral hardware; Gas inlet tube 15 is connected with sample gas; Gas outlet tube 16 is connected with analytical equipment, realizes the sampling and analysing of gas.
More than just the utility model being further described, is not in order to the restriction this patent, and all is that the utility model equivalence is implemented, and all should be contained within the claim scope of this patent.
Claims (4)
1. gas chromatography constant temperature oven, comprise: chromatographic column (5) and heating rod (9), it is characterized in that chromatographic column (5) is fixed by trim ring (13), tight loop (12) is arranged on the metal inner core (11), is fixedly installed on the fixed mount (3) behind built-in heating rod of metal inner core (11) (9) and the overtemperature prote bimetallic strip (4); Tight loop (12) is provided with temp probe (6); Metal inner core (11) is arranged in the lagging casing (7) that is provided with thermofin (8), and lagging casing (7) is provided with gas inlet tube (15) and the gas outlet tube (16) that is connected with chromatographic column (5).
2. according to the described gas chromatography constant temperature oven of claim 1, it is characterized in that described metal inner core (11) is for cylindrical, twine chromatographic column (5) on its cylinder, the outer tight loop (12) that is provided with of chromatographic column (5), tight loop (12) is fixedly installed on chromatographic column (5) on the cylinder of metal inner core (11), and it is upper and lower to be compressed by trim ring (13).
3. according to the described gas chromatography constant temperature oven of claim 1, it is characterized in that described lagging casing (7) is the circular insulation can of teflon material, its bottom is provided with aluminum alloy bottom plate (1).
4. according to the described gas chromatography constant temperature oven of claim 1, in it is characterized in that described heating rod (9) and overtemperature prote bimetallic strip (4) being embedded in metal inner core (11) mutually, compress with metal inner core (11) and to contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205893560U CN201844999U (en) | 2010-11-03 | 2010-11-03 | Gas chromatographic thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205893560U CN201844999U (en) | 2010-11-03 | 2010-11-03 | Gas chromatographic thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844999U true CN201844999U (en) | 2011-05-25 |
Family
ID=44039886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205893560U Expired - Lifetime CN201844999U (en) | 2010-11-03 | 2010-11-03 | Gas chromatographic thermostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844999U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890133A (en) * | 2012-10-19 | 2013-01-23 | 南通大学 | Temperature evener integrated with multiple chromatographic columns different in length |
| CN102901785A (en) * | 2012-10-22 | 2013-01-30 | 南通大学 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
| CN103134659A (en) * | 2011-12-05 | 2013-06-05 | 常熟卓辉光电科技有限公司 | Environment test device of fluorescent lamp |
| CN104122351A (en) * | 2013-04-24 | 2014-10-29 | 中国科学院大连化学物理研究所 | Uniform-temperature chromatographic column heating apparatus |
| CN104407080A (en) * | 2014-12-08 | 2015-03-11 | 同方威视技术股份有限公司 | Portable gas chromatographic capillary column module |
| CN104931626A (en) * | 2014-03-20 | 2015-09-23 | 常州仪盟核芯仪器有限公司 | Chromatography capillary column box |
| CN105929094A (en) * | 2016-04-18 | 2016-09-07 | 沈阳汉威科技有限公司 | Heat insulation box of gas chromatographic column |
| WO2019100530A1 (en) * | 2017-11-22 | 2019-05-31 | 济南兰光机电技术有限公司 | Gas constant temperature device and detection system |
-
2010
- 2010-11-03 CN CN2010205893560U patent/CN201844999U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134659A (en) * | 2011-12-05 | 2013-06-05 | 常熟卓辉光电科技有限公司 | Environment test device of fluorescent lamp |
| CN102890133A (en) * | 2012-10-19 | 2013-01-23 | 南通大学 | Temperature evener integrated with multiple chromatographic columns different in length |
| CN102901785A (en) * | 2012-10-22 | 2013-01-30 | 南通大学 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
| CN102901785B (en) * | 2012-10-22 | 2013-12-04 | 南通大学 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
| CN104122351A (en) * | 2013-04-24 | 2014-10-29 | 中国科学院大连化学物理研究所 | Uniform-temperature chromatographic column heating apparatus |
| CN104931626A (en) * | 2014-03-20 | 2015-09-23 | 常州仪盟核芯仪器有限公司 | Chromatography capillary column box |
| CN104407080A (en) * | 2014-12-08 | 2015-03-11 | 同方威视技术股份有限公司 | Portable gas chromatographic capillary column module |
| CN105929094A (en) * | 2016-04-18 | 2016-09-07 | 沈阳汉威科技有限公司 | Heat insulation box of gas chromatographic column |
| WO2019100530A1 (en) * | 2017-11-22 | 2019-05-31 | 济南兰光机电技术有限公司 | Gas constant temperature device and detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170224 Address after: 200331 Shanghai, Yongdeng Road, lane, room 1, No. 201, room 277 Patentee after: In such Chun Cheng (Shanghai) Environmental Protection Technology Co. Ltd Address before: 201803 Jiangqiao Industrial Development Zone, Shanghai, Jiangqiao Road, No. 18, No. Patentee before: China Petroleum Shanghai Instrument Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |