CN103091433A - Improved water-bath device - Google Patents
Improved water-bath device Download PDFInfo
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- CN103091433A CN103091433A CN2011103374493A CN201110337449A CN103091433A CN 103091433 A CN103091433 A CN 103091433A CN 2011103374493 A CN2011103374493 A CN 2011103374493A CN 201110337449 A CN201110337449 A CN 201110337449A CN 103091433 A CN103091433 A CN 103091433A
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- bath device
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Abstract
The invention discloses an improved water-bath device. The improved water-bath device comprises an external-layer container containing a heat-conducting medium, an internal-layer container used for containing a capillary column is arranged in the external-layer container, the internal-layer container is arranged in the heat-conducting medium through a supporting part, an electric heater and a temperature sensor are arranged in the heat-conducting medium in the external-layer container, the electric heater and the temperature sensor are accessed to a control system through a circuit, and an annular window is arranged around the circumference of the internal-layer container. The water-bath device adopts a two-layer structure, the heat-conducting medium is positioned between the external-layer container and the internal-layer container, and the capillary column to be processed is positioned in the internal-layer container and does not directly contact with the heat-conducting medium, so the fluctuation of the temperature of the heat-conducting medium can be buffered, and the stability of the temperature of the capillary column is improved. Further, the internal-layer container adopts the annular window, the circumferential temperature distribution uniformity of the internal-layer container is improved, and the stationary phase coating thickness homogeneity is guaranteed.
Description
Technical field
The present invention relates to a kind of water bath heating device, can be used for the fixedly phase that drying is coated in the capillary column inwall.
Background technology
Capillary chromatographic column is applied in the analyzing and testing field widely, capillary chromatographic column mainly is comprised of capillary column and the related accessory of glass or metal material, wherein the inwall of capillary column is coated with fixedly phase, and its performance has critical impact to detecting effect.
Add man-hour and be generally fixing phased soln or be dispersed in and be configured to coating liquid in organic solvent, then coating liquid is fed in capillary column, then make fixedly through vacuum drying that the phase material is covering at the capillary column inwall.
In prior art when the coating liquid in capillary column is carried out vacuum drying, need to heat, the tepidarium of for example capillary column being put into 35～40 degrees centigrade is heated, but the temperature stability of tepidarium is difficult to control, in case larger temperature fluctuation meeting occurs, the fixing homogeneity of covering of phase is caused harmful effect, then affect the performance of capillary chromatographic column.Although some technology adopts double-deck water bath device, be that heat-conducting medium is between outer layer container and internal layer container, pending capillary column is arranged in internal layer container, directly do not contact with heat-conducting medium, in order to guarantee the thermal conductivity of internal layer container, internal layer container is metal material, for the ease of observing the capillary column in internal layer container, the internal layer container sidewall is with transparent window, but so internal layer container is damaged in the heat transfer homogeneity that makes progress in week, and also the homogeneity of covering is mutually fixed in impact to a certain extent.
Summary of the invention
The invention provides that a kind of that capillary column is subjected to is thermally-stabilised, and the water bath device of being convenient to observe, by the improvement to internal layer container transparent form, improved the fixing homogeneity of covering mutually thickness, guaranteed the performance of capillary chromatographic column.
A kind of improved water bath device, comprise the outer layer container that is loaded with heat-conducting medium, be provided with in described outer layer container be used to the internal layer container that takes up capillary column, this internal layer container is erected in described heat-conducting medium by support component, in heat-conducting medium in described outer layer container, electric heater and temperature sensor are installed, described electric heater and temperature sensor are by the circuit access control system, and described internal layer container is around the form that is circumferentially with annular of self.
In order to facilitate temperature control, temperature sensor gathers the heat-conducting medium temperature signal and is passed to control system, control system is by contrasting as can be known the heat-conducting medium temperature whether in preset range, and sends control signal to electric heater as required, to implement heating or stopped heating.
Described support component is the bracing frame that is fixed on the outer layer container bottom, and described internal layer container is arranged on this bracing frame.Described support component can also be in-flanges or other form of outer layer container opening, to guarantee that internal layer container is erected in heat-conducting medium.
Described heat-conducting medium can adopt highly purified water.
For the ease of observing the capillary column in internal layer container, be transparent material as preferred described outer layer container, described internal layer container adopts metal material, be convenient to heat conduction as aluminium, stainless steel etc., and the setting of form is particularly crucial, and in internal layer container, its circumferential temperature distribution evenness is very important, therefore in the present invention, form is annular, around the circumferential continuous distribution of internal layer container.
For the ease of processing, as preferably, described internal layer container is cylindric, and described form is cylindric being inlaid in internal layer container.
In order to guarantee the stable of form, be divided into three sections from top to bottom as preferred described internal layer container, described form is middle one section, the junction between adjacent segment is with the snap-in structure that cooperatively interacts.
For example at the bottom of epimere, the top of edge and hypomere is along with ring groove, and the edge, top of form and the end are along with the annular flange flange that matches with described ring groove.
In order to guarantee the sealing of internal layer container sidewall, the junction between described adjacent segment adopts bonding mode to connect.
As another embodiment, the junction between adjacent segment is provided with sealing gasket, is provided be used to making described three sections clamping devices that mutually compress.
For ease of operation, described outer layer container and internal layer container are all with the upper cover of activity.
Water bath device of the present invention adopts double-decker, heat-conducting medium is between outer layer container and internal layer container, and pending capillary column is arranged in internal layer container, does not directly contact with heat-conducting medium, can cushion the fluctuation of heat-conducting medium temperature like this, improve the stability of capillary column temperature.Internal layer container adopts annular form in addition, has improved its circumferential temperature distribution evenness, has guaranteed the fixing homogeneity of covering mutually thickness.
Description of drawings
Fig. 1 is the structural representation of water bath device of the present invention, and wherein outer layer container adopts and analyses and observe method to illustrate its inner structure;
Fig. 2 is the structural representation of water bath device internal layer container of the present invention;
Fig. 3 is the sectional view of three sections junctions in water bath device internal layer container of the present invention.
Embodiment
Referring to accompanying drawing, water bath device of the present invention comprises the outer layer container 1 that is loaded with heat-conducting medium, is provided with in outer layer container 1 be used to the internal layer container 3 that takes up capillary column, and internal layer container 3 is erected in heat-conducting medium by the bracing frame 2 that is fixed on outer layer container 1 bottom.
In heat-conducting medium in outer layer container 1, electric heater 5 and temperature sensor 6 are installed, electric heater 5 and temperature sensor 6 are by circuit access control system 7.Temperature sensor 5 gathers the heat-conducting medium temperature signals and is passed to control system 7, and control system 7 is by contrasting as can be known the heat-conducting medium temperature whether in preset range, and sends control signal to electric heater 5 as required, to implement heating or stopped heating.
Heat-conducting medium adopts highly purified water, and outer layer container 1 and internal layer container 3 adopt cylindrical structure, and outer layer container 1 material is clear glass.
In Fig. 3, as seen, edge, the top of epimere edge, 8 end and hypomere 9 is with ring groove, and the edge, top of form 4 and edge, the end are with the annular flange flange that matches with ring groove.Epimere 8 and hypomere 9 materials adopt aluminium, and form 4 is the clear glass material.See through the capillary column in the visible internal layer container 3 of the direction of arrow.
Water bath device of the present invention adopts double-decker, heat-conducting medium is between outer layer container and internal layer container, and pending capillary column is arranged in internal layer container, does not directly contact with heat-conducting medium, can cushion the fluctuation of heat-conducting medium temperature like this, improve the stability of capillary column temperature.Internal layer container adopts annular form in addition, has improved its circumferential temperature distribution evenness, has guaranteed the fixing homogeneity of covering mutually thickness.
Claims (7)
1. improved water bath device, comprise the outer layer container that is loaded with heat-conducting medium, be provided with in described outer layer container be used to the internal layer container that takes up capillary column, this internal layer container is erected in described heat-conducting medium by support component, in heat-conducting medium in described outer layer container, electric heater and temperature sensor are installed, described electric heater and temperature sensor pass through the circuit access control system, it is characterized in that, described internal layer container is around the form that is circumferentially with annular of self.
2. improved water bath device as claimed in claim 1, is characterized in that, described support component is the bracing frame that is fixed on the outer layer container bottom, and described internal layer container is arranged on this bracing frame.
3. improved water bath device as claimed in claim 2, is characterized in that, described internal layer container is cylindric, and described form is cylindric being inlaid in internal layer container.
4. improved water bath device as claimed in claim 3, is characterized in that, described internal layer container is divided into three sections from top to bottom, and described form is middle one section, and the junction between adjacent segment is with the snap-in structure that cooperatively interacts.
5. improved water bath device as claimed in claim 4, is characterized in that, at the bottom of the epimere of described internal layer container, edge, the top of edge and hypomere is with ring groove, and the edge, top of form and edge, the end are with the annular flange flange that matches with described ring groove.
6. improved water bath device as claimed in claim 5, is characterized in that, the junction between described adjacent segment adopts bonding mode to connect.
7. improved water bath device as claimed in claim 5, is characterized in that, the junction between adjacent segment is provided with sealing gasket, is provided be used to making described three sections clamping devices that mutually compress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103374493A CN103091433A (en) | 2011-10-31 | 2011-10-31 | Improved water-bath device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103374493A CN103091433A (en) | 2011-10-31 | 2011-10-31 | Improved water-bath device |
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| Publication Number | Publication Date |
|---|---|
| CN103091433A true CN103091433A (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011103374493A Pending CN103091433A (en) | 2011-10-31 | 2011-10-31 | Improved water-bath device |
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| CN (1) | CN103091433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632505A (en) * | 2018-12-25 | 2019-04-16 | 南通同诚建设工程质量检测有限公司 | A kind of indoor doors or windows detector effectively improving measuring accuracy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5526681A (en) * | 1995-04-20 | 1996-06-18 | Selby; Theodore W. | Gas-containing vessel to establish desired heat flux |
| US20050086947A1 (en) * | 2003-10-23 | 2005-04-28 | Smc Corporation | Constant temperature liquid bath |
| CN201304340Y (en) * | 2008-12-01 | 2009-09-09 | 中国计量学院 | Heat pipe-based temperature stabilization device |
| CN202305491U (en) * | 2011-10-31 | 2012-07-04 | 天津市科密欧化学试剂有限公司 | Improved water bath device |
-
2011
- 2011-10-31 CN CN2011103374493A patent/CN103091433A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5526681A (en) * | 1995-04-20 | 1996-06-18 | Selby; Theodore W. | Gas-containing vessel to establish desired heat flux |
| US20050086947A1 (en) * | 2003-10-23 | 2005-04-28 | Smc Corporation | Constant temperature liquid bath |
| CN201304340Y (en) * | 2008-12-01 | 2009-09-09 | 中国计量学院 | Heat pipe-based temperature stabilization device |
| CN202305491U (en) * | 2011-10-31 | 2012-07-04 | 天津市科密欧化学试剂有限公司 | Improved water bath device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632505A (en) * | 2018-12-25 | 2019-04-16 | 南通同诚建设工程质量检测有限公司 | A kind of indoor doors or windows detector effectively improving measuring accuracy |
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Application publication date: 20130508 |