CN201886010U - Chromatographic column box - Google Patents
Chromatographic column box Download PDFInfo
- Publication number
- CN201886010U CN201886010U CN2010206449740U CN201020644974U CN201886010U CN 201886010 U CN201886010 U CN 201886010U CN 2010206449740 U CN2010206449740 U CN 2010206449740U CN 201020644974 U CN201020644974 U CN 201020644974U CN 201886010 U CN201886010 U CN 201886010U
- Authority
- CN
- China
- Prior art keywords
- box body
- post
- chromatograph
- post box
- air intake
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a chromatographic column box which comprises a column box body, a fan motor, a centrifugal fan blade, a heating device, a temperature sensor, a chromatographic column support, a gas inlet, a gas outlet, and an openable front column box door, preferably, the inner wall of the column box body is cylindrical, and the outer wall of the column box body is cubic; the fan motor is fixedly arranged on a rear panel of the column box body; the centrifugal fan blade, the heating device, the temperature sensor and the chromatographic column support are arranged inside the column box body; the gas inlet and the gas outlet are respectively arranged on the rear panel of the column box body and communicated with the interior of the column box body; and an inlet valve is arranged outside the gas inlet, an outlet valve is arranged outside the gas outlet, the openness of the inlet valve and the outlet valve are controlled by a motor, preferably, the motor is a stepping motor. The chromatographic column box can be minimized, has fast temperature rise and reduction, is easy to install and replace a chromatographic column, and can be used for a portable gas chromatographic instrument.
Description
Technical field
The utility model relates to the chromatograph box in a kind of analysis and test device field, particularly relates 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 utility model that has practical value finally.
The utility model content
Fundamental purpose of the present utility model is, overcome the defective that existing chromatograph box exists, and provide a kind of chromatograph box of new structure, technical matters to be solved is by adopting centrifugal fan, cylindrical box inwall, 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 purpose of this utility model and solve its technical matters and realize by the following technical solutions.Comprise according to a kind of chromatograph box that the utility model proposes: 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 utility model 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, the utility model chromatograph box 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 realization fast cooling, need 2 minutes from 250 ℃ to the temperature higher 5 ℃, can realize the control of near-ambient temperature by the aperture of controlling inlet valve and air outlet valve than environment temperature; 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 utility model also makes things convenient for the chromatographic column dismounting, installs.The utility model 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 only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and be implemented according to the content of instructions, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the synoptic diagram of the top view of the utility model one embodiment chromatograph box.
Fig. 2 is the synoptic diagram of the front view of the utility model one embodiment chromatograph box.
Fig. 3 is the schematic perspective view of the utility model one embodiment 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
For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to chromatograph box and its embodiment of chromatograph, structure, feature and the effect thereof that the utility model 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 utility model, 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 utility model 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 utility model 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 utility model 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, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, any those skilled in the art, in not breaking away from the technical solutions of the utility model 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 solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
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 |
|---|---|---|---|
| CN2010206449740U CN201886010U (en) | 2010-12-07 | 2010-12-07 | Chromatographic column box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206449740U CN201886010U (en) | 2010-12-07 | 2010-12-07 | Chromatographic column box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886010U true CN201886010U (en) | 2011-06-29 |
Family
ID=44183556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206449740U Expired - Fee Related CN201886010U (en) | 2010-12-07 | 2010-12-07 | Chromatographic column box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886010U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095823A (en) * | 2010-12-07 | 2011-06-15 | 西华大学 | Chromatographic column box |
| CN102879507A (en) * | 2012-10-08 | 2013-01-16 | 南通大学 | Chromatographic column temperature evener in efficient liquid chromatograph thermostat |
| CN109001322A (en) * | 2018-08-01 | 2018-12-14 | 北京普析通用仪器有限责任公司 | A kind of gas chromatograph column oven of fast cooling |
-
2010
- 2010-12-07 CN CN2010206449740U patent/CN201886010U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095823A (en) * | 2010-12-07 | 2011-06-15 | 西华大学 | Chromatographic column box |
| CN102879507A (en) * | 2012-10-08 | 2013-01-16 | 南通大学 | Chromatographic column temperature evener in efficient liquid chromatograph thermostat |
| CN109001322A (en) * | 2018-08-01 | 2018-12-14 | 北京普析通用仪器有限责任公司 | A kind of gas chromatograph column oven of fast cooling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102095823A (en) | Chromatographic column box | |
| CN101995443A (en) | Chromatograph column box | |
| CN101762661B (en) | Chromatographic column box and gas chromatographer thereof | |
| CN102095528B (en) | Temperature sensor calibration device | |
| CN201886010U (en) | Chromatographic column box | |
| CN203688695U (en) | Hot air ageing oven used for cable | |
| CN201886009U (en) | Chromatograph column box | |
| CN203333663U (en) | High-speed wind field PCR (Polymerase Chain Reaction) instrument | |
| CN201885829U (en) | Calibrating device for temperature sensor | |
| CN103202359A (en) | Full-automatic black tea fermentation device | |
| CN209680113U (en) | A kind of thermal shock test chamber | |
| CN206313095U (en) | A kind of electric vehicle heating system | |
| CN201828095U (en) | Quick refrigerant feeding device | |
| CN201622267U (en) | Chromatographic column box and gas-phase chromatograph | |
| CN214374579U (en) | Low-pressure VOC (volatile organic compound) test device | |
| CN207001298U (en) | A kind of portable biological sample storing unit | |
| CN205718320U (en) | A kind of auxiliary agent Constant Temp. Oven | |
| CN204776736U (en) | A novel constant temperature insulation can for bio -pharmaceuticals | |
| CN216525340U (en) | System constant temperature structure for specific surface area and aperture analyzer | |
| CN209894566U (en) | Test paper strip constant temperature incubation box | |
| CN104676038B (en) | Gas furnace | |
| CN203207098U (en) | Full-automatic black tea fermentation device | |
| JPH09201540A (en) | Draft chamber | |
| CN206269516U (en) | Coiled battery experiment drying device | |
| CN207231116U (en) | A kind of hot air drier of dry detection sample |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131207 |