CN102095823A - Chromatographic column box - Google Patents
Chromatographic column box Download PDFInfo
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- CN102095823A CN102095823A CN2010105762639A CN201010576263A CN102095823A CN 102095823 A CN102095823 A CN 102095823A CN 2010105762639 A CN2010105762639 A CN 2010105762639A CN 201010576263 A CN201010576263 A CN 201010576263A CN 102095823 A CN102095823 A CN 102095823A
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- post
- chromatograph
- post box
- air intake
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Abstract
The invention relates to a chromatographic column box. The chromatographic column box comprises a column box body, preferably the column box body is provided with a cylindrical inner wall and a rectangular outer wall; a fan motor fixed on the rear panel of the column box body; a centrifugal fan blade, a heating device, a temperature sensor and a chromatographic column support are arranged in the column box body; an air inlet and an air outlet respectively are formed on the rear panel of the column box body and communicated with the inside of the column box body; an air inlet door is arranged outside the air inlet, an air outlet door is arranged outside the air outlet; and the opening of the air inlet door and the air outlet door is controlled by the motor; and preferably, the motor is a step motor. The chromatographic column box has small size, fast heating and cooling, is easy to install and replace chromatographic columns, and can be used in portable gas chromatography.
Description
Technical field
The present invention relates to the chromatograph box in a kind of analysis and test device field, particularly relate to a kind of gas chromatograph post case of miniaturization.
Background technology
Gas chromatograph is applied in various fields such as chemical industry, environmental protection, but since bulky, generally be placed on the laboratory and use.The post case of gas chromatograph accounts for more than 60% of whole gas chromatograph, wants to make gas chromatograph microminiaturization, portable, just must make the chromatograph box microminiaturization.
Once proposed a kind of annular chromatography post case in the prior art, this chromatograph box is by the metal fever conduction heat transfer, and heat transfer rate is slower than thermal convection, and metal heat transfer conducts heat evenly not as gaseous exchange.Simultaneously, this chromatograph box adopts the temperature of control metal soaking piece to control post the temperature inside the box, because the thermal inertia of metal soaking piece is big, the temperature control difficulty is big, and is not easy to realize being rapidly heated and fast cooling.
Also have a kind of miniature chromatograph box, this post case is square, mainly is heating film, chromatographic column, thermistor are installed on the bracing frame, the bracing frame material is an almag, its temperature transfer mode is mainly leaned on the heat conduction of bracing frame, and 2 fans are arranged, and quickens when being used to lower the temperature to descend.But the airflow field of this chromatograph box is not symmetrically and evenly, enter the cold air of post case can not be fully chromatographic column by bracing frame, and bracing frame stores more heat energy, its cooling-down effect is affected.The chromatographic column of this scheme, heating film are incorporate in addition, change the chromatographic column difficulty, and the selection of chromatographic column is also very limited.
This shows that above-mentioned existing chromatograph box and chromatograph obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Fundamental purpose of the present invention is, overcoming the defective that existing chromatograph box exists, is by adopting centrifugal fan, cylindrical box inwall and a kind of chromatograph box of new structure, technical matters to be solved are provided, reduce the volume of chromatograph box, and have good temp regulating function.
This chromatograph box makes and changes the chromatographic column easy operating by adopting centrifugal fan blade, heating arrangement and the chromatographic column support that can install, dismantle.By setting out gas port and air intake opening, and the aperture by Electric Machine Control air outlet valve, inlet valve, can realize fast cooling and nearly ambient temperature control.The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of chromatograph box that proposes according to the present invention comprises: the post box body offers air intake opening and gas outlet with this post box body internal communication on the backboard of this post box body; And fan electromotor, being fixed on the rear panel of described post box body, the axle of fan electromotor gos deep in the post box body, and is provided with the centrifugal fan blade at the axle of fan electromotor.As more excellent mode, chromatograph box of the present invention also comprises: the chromatographic column support is arranged on described post box body inside; Temperature sensor is arranged on described post box body inside; Heating arrangement is arranged on described post box body inside; And post case Qianmen, link to each other with the post box body by door-hinge before the chromatograph box that is arranged on post box body bottom.The inner space of described post box body is cylindric.Described fan electromotor is the adjustable speed direct current generator.Preferable, this chromatograph box also is arranged at the air intake opening baffle plate of post box body inside, the ring flat-plate shape that this air intake opening baffle plate is a center drilling, and the axle of fan electromotor passes this air intake opening its centre perforate.Perforate of described air intake opening its centre and described post box body inside center regional connectivity.Described gas outlet is communicated with front area in the described post box body by the ventiduct that a baffle plate and post box body inwall form.The control motor of described inlet valve and air outlet valve is a stepper motor.
By above technical scheme as can be known, chromatograph box of the present invention has following advantage at least: reduce the volume of chromatograph box than foward-push fan commonly used by adopting described centrifugal fan; Described centrifugal fan blade rotates in described post box body, forms depression near motor shaft, forms the high-pressure area in described centrifugal fan blade outer rim, and this will make and form circulating current in the post case, and this air-flow makes post the temperature inside the box field even; Chromatographic column is the hot air that is circulated, and is heated evenly; Because be to add hot-air with heater strip, the air heat absorption capacity coefficient is little, and the post casing is long-pending little, can realize the programming rate greater than 100 ℃/minute, and temperature range can be from environment temperature to 420 ℃; Described post box body has air intake opening and gas outlet, air intake opening is near the depression of motor shaft, the gas outlet communicates with the anterior high-pressure area of post box body by the ventiduct of described post box body inside, when inlet valve, air outlet valve are opened under air door control Electric Machine Control, the cold air of outside can be from the air intake opening suction, release from the gas outlet, thereby realize that fast cooling needs 2 minutes from 250 ℃ to the temperature higher 5 ℃ than environment temperature, can realize the control of near-ambient temperature by the aperture of controlling inlet valve and air outlet valve; Injector, detecting device are installed on the described post box body top board, and chromatographic column links to each other with injector, detecting device by general connector; Described centrifugal fan blade, heating arrangement, chromatographic column support can take out in described post box body, handled easily person dismounting, installation chromatographic column; Described post casing is long-pending be present post casing long-pending about 20%, save electric power more than 90%, above-mentioned every index still is expected to significantly improve through further optimization.
Not only miniaturization of chromatograph box of the present invention also makes things convenient for the chromatographic column dismounting, installs.The present invention has purposes and application prospect widely for miniaturization, portability and the online gas chromatograph of making industry spot of gas chromatograph, has remarkable economical and social benefit.
Above-mentioned explanation instrument is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the synoptic diagram of the top view of one embodiment of the invention chromatograph box.
Fig. 2 is the synoptic diagram of the front view of one embodiment of the invention chromatograph box.
Fig. 3 is the schematic perspective view of one embodiment of the invention chromatograph box.
Among the figure
1, door-hinge 9, air outlet valve 10, inlet valve 11, air door control motor 12, transmission shaft 13, chromatograph box Qianmen 14, injector connecting pipe 15, detecting device connecting pipe 16, fan electromotor 17, air intake opening 18, gas outlet 19, temperature sensor 20, ventiduct before post box body 2, chromatographic column support 3, heating arrangement 4, centrifugal fan blade 5, air intake opening baffle plate 6, detecting device 7, injector 8, the chromatograph box
Embodiment
Step elaboration the present invention reaches technological means and the effect that predetermined goal of the invention is taked in order more to advance one by one, below in conjunction with accompanying drawing and preferred embodiment, to chromatograph box and its embodiment of chromatograph, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
As shown in Figure 1 to Figure 3, Fig. 1 is the synoptic diagram of the top view of the chromatograph box that proposes of preferred embodiment of the present invention, and Fig. 2 is the synoptic diagram of the front view of this chromatograph box, and Fig. 3 is the synoptic diagram of the stereographic map of this chromatograph box.
This chromatograph box comprises: post box body 1, and preferred, post box body inwall is cylindrical, makes the inner space of post box body be cylindric, the outer wall of post box body is a cuboid; Fan electromotor 16 is fixed on the rear panel of described post box body; Centrifugal fan blade 4 is fixed on the axle of described fan electromotor 16; Heating arrangement 3 is a ring-type, is arranged on described post box body 1 inside, and is positioned at centrifugal fan blade 4 outsides, and described heating arrangement can wholely take out, and integral body is inserted, the convenient installation.Chromatographic column support 2 is a ring-type, is arranged at described post box body inside, and is positioned at heating arrangement 3 outsides, and the chromatographic column support can wholely take out, and integral body is inserted, the convenient installation.Temperature sensor 19 is installed on the chromatographic column support 2; Air intake opening 17 and gas outlet 18 are opened in respectively on the backboard of described post box body.Air intake opening baffle plate 5 is the ring flat-plate shape of center drilling, and the axle of fan electromotor 16 passes the center drilling of this air intake opening baffle plate 5, forms air intake passage, makes air intake opening 17 and described post box body inside center regional connectivity.Gas outlet 18 is communicated with front area in the described post box body by the ventiduct 20 that a baffle plate forms.Inlet valve 10 is arranged outside the air intake opening 17, air outlet valve 9 is arranged outside the gas outlet 18, the aperture of inlet valve 10 and air outlet valve 9 is subjected to 11 controls of air door motor by transmission shaft 12, and preferable, this air door motor 11 is a stepper motor.Post case Qianmen 13 is arranged on the front of described post box body, post case Qianmen 13 by the chromatograph box that is arranged on the bottom before door-hinge 8 link to each other with post box body 1.Be provided with detecting device 6 and injector 7 at the top of post box body 1, this injector 7 is connected in injector connecting pipe 14, and this detecting device 6 is connected in detecting device connecting pipe 15.
When driving 4 rotations of centrifugal fan blade, fan electromotor 16 can form depression near the axle at this fan electromotor, form the high-pressure area at centrifugal fan blade 4 radially outer edges, to make and form circulating current in the post box body 1, this air-flow makes post box body 1 interior temperature field even, and the hot-air that chromatographic column is circulated evenly heats.Because post box body 1 volume heat absorption capacity coefficient little, air is little, can realize the programming rate greater than 100 ℃/minute, upper temperature limit can reach 420 ℃.
The mirror face stainless steel that post box body 1 usefulness 1mm is thick is made, the inner diameter 220mm of post box body 1, outer wall length and width are 280mm, the inner chamber degree of depth 60mm of post box body 1, post box body 1 back wall thickness 30mm, the cotton thermal insulation material of filling glass between post box body 1 inner and outer wall.The thickness 30mm at post case Qianmen 13, the length and width at post case Qianmen 13 is 280mm, the cotton thermal insulation material of post case Qianmen 13 inner filling glass.The diameter of centrifugal fan blade 4 is 100mm, thickness 40mm.Heating arrangement 3 diameter 140mm, thickness 50mm, power is 150 watts at full capacity.Chromatographic column support 2 diameter 180mm, thickness 50mm.Air outlet valve 9 and inlet valve 10 diameters are 40mm.Fan electromotor 16 is a direct current generator, and output power is adjustable, 25 watts at full capacity.
Other indispensable parts that chromatograph post case of the present invention is required and do not describe part in detail and all adopt prior art to get final product do not repeat them here.
Gas chromatograph post case of the present invention is under the control of the SC6000 of Chongqing Sichuan Instrument Analyzer Co., Ltd gas chromatograph temperature controller, accuracy of temperature control reaches ± and 0.05 ℃, the temperature control scope can reach environment temperature+5～420 ℃, can realize 9 rank temperature programmes, and repeatability is better than 0.5%.Programming rate during cooling, needs 2 minute from 250 ℃ to the temperature higher 5 ℃ than environment temperature greater than 100 ℃/minute.Be better than advanced at present universal gas chromatograph index, but its volume is about 20% of an existing gas chromatograph volume, saves electric power more than 90%.The present invention has purposes and application prospect widely for miniaturization, portability and the online gas chromatograph of making industry spot of gas chromatograph, has remarkable economical and social benefit.
The above, instrument is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (8)
1. chromatograph box is characterized in that it comprises:
The post box body offers air intake opening and gas outlet with this post box body internal communication on the backboard of this post box body; And
Fan electromotor is fixed on the rear panel of described post box body, and the axle of fan electromotor gos deep in the post box body, and is provided with the centrifugal fan blade at the axle of fan electromotor.
2. chromatograph box according to claim 1 is characterized in that also comprising:
The chromatographic column support is arranged on described post box body inside;
Temperature sensor is arranged on described post box body inside;
Heating arrangement is arranged on described post box body inside; And
Post case Qianmen links to each other with the post box body by door-hinge before the chromatograph box that is arranged on post box body bottom.
3. chromatograph box according to claim 1 is characterized in that the inner space of described post box body is cylindric.
4. chromatograph box according to claim 1 is characterized in that described fan electromotor is the adjustable speed direct current generator.
5. according to each described chromatograph box of claim 1-4, it is characterized in that also comprising: be arranged at the air intake opening baffle plate of post box body inside, the ring flat-plate shape that this air intake opening baffle plate is a center drilling, the axle of fan electromotor passes this air intake opening its centre perforate.
6. chromatograph box according to claim 5 is characterized in that perforate of described air intake opening its centre and described post box body inside center regional connectivity.
7. as each described chromatograph box of claim 1-4, it is characterized in that described gas outlet is communicated with front area in the described post box body by the ventiduct that a baffle plate and post box body inwall form.
8. chromatograph box as claimed in claim 1, the control motor that it is characterized in that described inlet valve and air outlet valve is a stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105762639A CN102095823A (en) | 2010-12-07 | 2010-12-07 | Chromatographic column box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105762639A CN102095823A (en) | 2010-12-07 | 2010-12-07 | Chromatographic column box |
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| CN102095823A true CN102095823A (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105762639A Pending CN102095823A (en) | 2010-12-07 | 2010-12-07 | Chromatographic column box |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018379A (en) * | 2012-11-23 | 2013-04-03 | 上海仪电分析仪器有限公司 | Rapid cooling structure for gas chromatograph column box |
| CN104597176A (en) * | 2015-01-08 | 2015-05-06 | 聚光科技(杭州)股份有限公司 | Cooling method of gas chromatograph |
| CN104678032A (en) * | 2013-11-28 | 2015-06-03 | 杭州捷岛科学仪器有限公司 | Gas chromatographic column incubator |
| CN106546688A (en) * | 2015-09-21 | 2017-03-29 | 中国科学院大连化学物理研究所 | A kind of heat abstractor for portable gas chromatography column casing |
| CN106568878A (en) * | 2015-10-13 | 2017-04-19 | 中国石油天然气股份有限公司 | Method for activating a tenax sampling tube |
| CN107796894A (en) * | 2016-09-02 | 2018-03-13 | 塞莫费雪科学（不来梅）有限公司 | Sample preparation device and method for the improvement of elementary analysis spectrometer |
| CN111796045A (en) * | 2020-07-13 | 2020-10-20 | 杭州道宇检测技术有限公司 | Chromatographic column heating device for gas chromatograph |
| CN112034081A (en) * | 2020-09-07 | 2020-12-04 | 浙江安联检测技术服务有限公司 | High-efficient heating gas chromatography device |
| CN112595798A (en) * | 2020-12-15 | 2021-04-02 | 南京工业职业技术大学 | Miniature chromatographic column box |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3088606B2 (en) * | 1993-11-04 | 2000-09-18 | 株式会社堀場製作所 | Constant temperature bath |
| US20030037592A1 (en) * | 2001-08-21 | 2003-02-27 | Thermo Finnigan Llc | Gas chromatograph oven assembly |
| JP2003344376A (en) * | 2002-05-27 | 2003-12-03 | Hitachi High-Technologies Corp | Gaschromatograph |
| CN1719224A (en) * | 2004-07-08 | 2006-01-11 | 安捷伦科技有限公司 | Method and apparatus for an analytical instrument oven module with variable speed fan |
| CN2840036Y (en) * | 2005-11-24 | 2006-11-22 | 上海神开科技工程有限公司 | Side opening door chromatographic column box |
| CN101762661A (en) * | 2010-01-28 | 2010-06-30 | 靳斌 | Chromatographic column box and gas chromatographer thereof |
| CN201886010U (en) * | 2010-12-07 | 2011-06-29 | 西华大学 | Chromatographic column box |
-
2010
- 2010-12-07 CN CN2010105762639A patent/CN102095823A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3088606B2 (en) * | 1993-11-04 | 2000-09-18 | 株式会社堀場製作所 | Constant temperature bath |
| US20030037592A1 (en) * | 2001-08-21 | 2003-02-27 | Thermo Finnigan Llc | Gas chromatograph oven assembly |
| JP2003344376A (en) * | 2002-05-27 | 2003-12-03 | Hitachi High-Technologies Corp | Gaschromatograph |
| CN1719224A (en) * | 2004-07-08 | 2006-01-11 | 安捷伦科技有限公司 | Method and apparatus for an analytical instrument oven module with variable speed fan |
| CN2840036Y (en) * | 2005-11-24 | 2006-11-22 | 上海神开科技工程有限公司 | Side opening door chromatographic column box |
| CN101762661A (en) * | 2010-01-28 | 2010-06-30 | 靳斌 | Chromatographic column box and gas chromatographer thereof |
| CN201886010U (en) * | 2010-12-07 | 2011-06-29 | 西华大学 | Chromatographic column box |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018379A (en) * | 2012-11-23 | 2013-04-03 | 上海仪电分析仪器有限公司 | Rapid cooling structure for gas chromatograph column box |
| CN104678032A (en) * | 2013-11-28 | 2015-06-03 | 杭州捷岛科学仪器有限公司 | Gas chromatographic column incubator |
| CN104597176A (en) * | 2015-01-08 | 2015-05-06 | 聚光科技(杭州)股份有限公司 | Cooling method of gas chromatograph |
| CN106546688A (en) * | 2015-09-21 | 2017-03-29 | 中国科学院大连化学物理研究所 | A kind of heat abstractor for portable gas chromatography column casing |
| CN106546688B (en) * | 2015-09-21 | 2018-06-29 | 中国科学院大连化学物理研究所 | A kind of radiator for portable gas chromatography column casing |
| CN106568878B (en) * | 2015-10-13 | 2018-05-04 | 中国石油天然气股份有限公司 | Method for activating a tenax sampling tube |
| CN106568878A (en) * | 2015-10-13 | 2017-04-19 | 中国石油天然气股份有限公司 | Method for activating a tenax sampling tube |
| CN107796894A (en) * | 2016-09-02 | 2018-03-13 | 塞莫费雪科学（不来梅）有限公司 | Sample preparation device and method for the improvement of elementary analysis spectrometer |
| CN107796894B (en) * | 2016-09-02 | 2024-07-12 | 塞莫费雪科学（不来梅）有限公司 | Improved sample preparation apparatus and method for elemental analysis spectrometer |
| CN111796045A (en) * | 2020-07-13 | 2020-10-20 | 杭州道宇检测技术有限公司 | Chromatographic column heating device for gas chromatograph |
| CN111796045B (en) * | 2020-07-13 | 2022-06-14 | 杭州道宇检测技术有限公司 | Chromatographic column heating device for gas chromatograph |
| CN112034081A (en) * | 2020-09-07 | 2020-12-04 | 浙江安联检测技术服务有限公司 | High-efficient heating gas chromatography device |
| CN112595798A (en) * | 2020-12-15 | 2021-04-02 | 南京工业职业技术大学 | Miniature chromatographic column box |
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Application publication date: 20110615 |