CN211741173U - Chromatographic column heating box - Google Patents
Chromatographic column heating box Download PDFInfo
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- CN211741173U CN211741173U CN201922441283.4U CN201922441283U CN211741173U CN 211741173 U CN211741173 U CN 211741173U CN 201922441283 U CN201922441283 U CN 201922441283U CN 211741173 U CN211741173 U CN 211741173U
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- heating cabinet
- box
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- chromatography column
- column heating
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Abstract
The utility model discloses a chromatographic column heating cabinet relates to the equipment technical field of chromatographic column, has solved the inhomogeneous problem of heating temperature of chromatographic column heating cabinet, the utility model discloses a be equipped with the metal casing pipe in the heating cabinet, the metal casing pipe is double-deck sleeve pipe, be equipped with the heater strip for hollow in the middle of sleeve pipe skin and the inlayer, hollow department top and bottom are the intercommunication state, hollow bottom and air compressor intercommunication, air compressor and air pressure stabilizing valve intercommunication, be equipped with the temperature-sensing ware in the box, the utility model has the advantages of simple structure, it is effectual to chromatographic column heating, guarantee the air stability in the heating cabinet, air temperature is stable.
Description
Technical Field
The utility model relates to an equipment technical field of chromatographic column, more specifically relate to a chromatographic column heating cabinet.
Background
The gas chromatograph is a chromatographic analysis device using gas as a mobile phase. The principle is mainly to realize the separation of the mixture by utilizing the differences of the boiling point, the polarity and the adsorption property of the substances. After being gasified in the gasification chamber, the sample to be analyzed is carried into the chromatographic column by inert gas (i.e. carrier gas, also called mobile phase), the column contains liquid or solid stationary phase, and each component in the sample tends to form distribution or adsorption equilibrium between the mobile phase and the stationary phase. With the flowing of the carrier gas, the sample components are repeatedly distributed or adsorbed/desorbed in motion for many times, and the components with high distribution concentration in the carrier gas flow out of the chromatographic column firstly, and the components with high distribution concentration in the stationary phase flow out after being distributed.
And the gas chromatograph is injected by a sample injector, then is introduced into a capillary chromatographic column in the heat preservation box for component separation, and finally is sent into detection equipment for detection. The existing column oven generally utilizes a resistance wire to heat air, and then utilizes a fan blade to stir the air so as to achieve the effect of soaking and keeping the temperature constant. However, in practical use, even if the fan is used for stirring, local temperature difference still occurs, so that the capillary chromatographic column is heated unevenly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve current chromatographic column heating unstability, the inhomogeneous problem of temperature heating, the utility model designs a chromatographic column heating cabinet.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme: the utility model provides a chromatographic column heating cabinet, includes box and heater strip be equipped with metal sleeve in the heating cabinet, metal sleeve is double-deck sleeve pipe, be equipped with the heater strip for hollow in the middle of the sleeve pipe skin and the inlayer, hollow department top and bottom are the connected state, hollow bottom and air compressor intercommunication, air compressor and air surge damping valve intercommunication.
Further, be equipped with temperature-sensing ware in the box, conveniently detect the temperature in the box, its heating of stable control that can be better.
Further, double-deck sleeve pipe is the disconnect-type structure, the bottom half is equipped with a track, double-deck sleeve pipe can move on the track, be equipped with a plurality of stop gear on the track, stop gear is including establishing the recess in the track bottom, be equipped with the spring in the recess, the spring is connected with the ball, the radius of ball is less than the recess, the spheroid is located the track under the spring natural state, can make things convenient for the installation of chromatographic column, can be better heat the chromatographic column.
Further, the maximum power of the heating wire is 440 w.
Further, the air pressure of the air compressor is 0.05 Mpa.
Further, the box adopts double-deck corrosion resistant plate, the corrosion resistant steel inlayer is equipped with the heat preservation cotton, further avoids thermal-insulated not good of effect, leads to the temperature unstability in the heating cabinet, the heat preservation is 20 mm.
Further, be equipped with control panel on the box, control panel is connected with the PLC controller, PLC controller and heater strip, air compressor, temperature-sensing ware and air surge damping valve electric connection for control box that can be more intelligent.
The utility model has the advantages as follows:
1. the utility model discloses a chromatographic column heating cabinet, through being equipped with double-deck sleeve pipe in the box, and double-deck sleeve pipe encircles around the chromatographic column body, be equipped with the heater strip for the hollow in the middle of sleeve pipe skin and the inlayer, and for well logical connectivity, then be equipped with air compressor in double-deck sleeve pipe department for lead to the entering in with the air, make under the stable prerequisite of box internal pressure, the temperature is also stable through the heater strip, and air compressor and air surge damping valve intercommunication can pass through the stability of air pressure more simultaneously, guarantee the stability of its air, and the stability of the temperature in the whole box.
2. Double-deck sleeve pipe is disconnect-type structure, the bottom half is equipped with a track, double-deck sleeve pipe can move on the track, and pushes down the ball through the ball that resets after the ball passes through when passing through the ball, and back spacing is fixed, can be according to the installation of the size convenience chromatographic column of chromatographic column, can be better heat the chromatographic column.
3. The box adopts double-deck corrosion resistant plate, the stainless steel inlayer is equipped with the heat preservation cotton, further avoids thermal-insulated not good of effect, leads to the temperature unstability in the heating cabinet, be equipped with control panel on the box, control panel is connected with the PLC controller, PLC controller and heater strip, air compressor, temperature-sensing ware and air pressure stabilizing valve electric connection for the control box that can be more intelligent.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the limiting mechanism of the present invention;
fig. 3 is a schematic top view of the present invention;
reference numerals: 1-box body, 2-heating wire, 3-metal sleeve, 4-air compressor, 5-air pressure stabilizing valve, 6-track, 7-limiting mechanism, 701-groove, 702-spring and 703-ball.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 3, a chromatographic column heating box comprises a box body 1 and heating wires 2, wherein a metal sleeve 3 is arranged in the heating box, the metal sleeve 3 is a double-layer sleeve, the heating wires 2 are arranged in the middle of the outer layer and the inner layer of the sleeve in a hollow mode, the top and the bottom of the hollow part are in a communicated state, the hollow bottom is communicated with an air compressor 4, the air compressor 4 is communicated with an air pressure stabilizing valve 5, a temperature sensor is arranged in the box body 1, the temperature in the box body 1 can be conveniently detected, and the heating of the chromatographic column heating box can be controlled better and stably.
The working principle is as follows: through being equipped with double-deck sleeve pipe in box 1, and double-deck sleeve pipe encircles around the chromatographic column body, be equipped with heater strip 2 for the hollow in the middle of sleeve pipe skin and the inlayer, and for well logical connectivity structure, then be equipped with air compressor 4 in double-deck sleeve pipe department for it enters into to lead to the air in through, make under the stable prerequisite of box 1 internal pressure, the temperature is also stable through heater strip 2, and air compressor 4 and air surge damping valve 5 intercommunication can pass through the stability of air pressure more simultaneously, the maximum power of heater strip 2 is 440w, air compressor 4's air pressure is 0.05 Mpa.
Example 2
As shown in fig. 1 to fig. 3, in order to make the installation of the chromatographic column more convenient, the present embodiment is further improved on the basis of embodiment 1, specifically: the double-deck sleeve pipe is the disconnect-type structure, 1 bottom of box is equipped with a track 6, the double-deck sleeve pipe can move on track 6, be equipped with a plurality of stop gear 7 on the track 6, stop gear 7 is including establishing the recess 701 in track 6 bottom, be equipped with spring 702 in the recess 701, spring 702 is connected with ball 703, ball 703's radius is less than recess 701, the spheroid is located track 6 under the spring 702 natural state, can make things convenient for the installation of chromatographic column, can be better heats the chromatographic column, heater strip 2 is the flexible state, can follow the sleeve pipe and remove and do the extension, the double-deck sleeve pipe is 10-15mm at the distance that moves of track 6.
Example 3
As shown in fig. 1 to fig. 3, in order to make the utility model more intelligent in use and better in sealing effect, the present embodiment is further improved on the basis of embodiment 2, specifically: the box 1 adopts double-deck corrosion resistant plate, the stainless steel inlayer is equipped with the heat preservation cotton, further avoids thermal-insulated not good of effect, leads to the temperature unstability in the heating cabinet, the heat preservation is 20mm, be equipped with control panel on the box 1, control panel is connected with the PLC controller, PLC controller and heater strip 2, air compressor 4, temperature-sensing ware and 5 electric connection of air surge damping valve for control box 1 that can be more intelligent.
Claims (10)
1. The utility model provides a chromatographic column heating cabinet, includes box (1) and heater strip (2), its characterized in that: the heating box is characterized in that a metal sleeve (3) is arranged in the heating box (1), the metal sleeve (3) is a double-layer sleeve, the middle of the outer layer and the inner layer of the double-layer sleeve is hollow and is provided with heating wires (2), the top and the bottom of the hollow part are in a communicated state, the hollow bottom is communicated with the air compressor (4), and the air compressor (4) is communicated with the air pressure stabilizing valve (5).
2. The chromatography column heating cabinet of claim 1, wherein: a temperature sensor is arranged in the box body (1).
3. The chromatography column heating cabinet of claim 1, wherein: the double-layer sleeve is of a separated structure.
4. The chromatography column heating cabinet of claim 3, wherein: the double-layer sleeve pipe box is characterized in that a track (6) is arranged at the bottom of the box body (1), the double-layer sleeve pipe can move on the track (6), and a plurality of limiting mechanisms (7) are arranged on the track (6).
5. The chromatography column heating cabinet of claim 4, wherein: the limiting mechanism (7) comprises a groove (701) formed in the bottom of the track, a spring (702) is arranged in the groove (701), the spring (702) is connected with a ball (703), the radius of the ball (703) is smaller than that of the groove (701), and the ball (703) is located in the track (6) in the natural state of the spring (702).
6. The chromatography column heating cabinet of claim 1, wherein: the maximum power of the heating wire (2) is 440 w.
7. The chromatography column heating cabinet of claim 1, wherein: the air pressure of the air compressor (4) is 0.05 Mpa.
8. The chromatography column heating cabinet of claim 1, wherein: the box body (1) adopts a double-layer stainless steel plate, and the inner layer of the stainless steel plate is provided with heat insulation cotton.
9. The chromatography column heating cabinet of claim 1, wherein: the heat preservation layer is 20 mm.
10. The chromatography column heating cabinet of claim 2, wherein: the air conditioner box is characterized in that a control panel is arranged on the box body (1) and connected with a PLC (programmable logic controller), and the PLC is electrically connected with the heating wires (2), the air compressor (4), the temperature sensor and the air pressure stabilizing valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441283.4U CN211741173U (en) | 2019-12-30 | 2019-12-30 | Chromatographic column heating box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441283.4U CN211741173U (en) | 2019-12-30 | 2019-12-30 | Chromatographic column heating box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211741173U true CN211741173U (en) | 2020-10-23 |
Family
ID=72872018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922441283.4U Active CN211741173U (en) | 2019-12-30 | 2019-12-30 | Chromatographic column heating box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211741173U (en) |
-
2019
- 2019-12-30 CN CN201922441283.4U patent/CN211741173U/en active Active
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