CN112595798A - Miniature chromatographic column box - Google Patents
Miniature chromatographic column box Download PDFInfo
- Publication number
- CN112595798A CN112595798A CN202011478596.8A CN202011478596A CN112595798A CN 112595798 A CN112595798 A CN 112595798A CN 202011478596 A CN202011478596 A CN 202011478596A CN 112595798 A CN112595798 A CN 112595798A
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- Prior art keywords
- heat preservation
- box body
- preservation box
- motor
- heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
- G01N2030/3007—Control of physical parameters of the fluid carrier of temperature same temperature for whole column
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses a miniature chromatographic column box, which comprises a heat preservation box body, a heat preservation cover body, a stirring assembly and a heat preservation temperature measuring device, wherein the heat preservation cover body is covered on the top end of the heat preservation box body and can be opened and closed, and the heat preservation box body is internally provided with a heating device and a supporting assembly for supporting the heating device and a chromatographic column. According to the micro chromatographic column box provided by the invention, under the action of the stirring fan, heat generated by the heating device is uniformly dispersed into the heat-insulating box body, so that the temperature in the heat-insulating box body is more uniform; compared with the prior art in which the heat dissipation is realized through the heat dissipation port, when the air port is in an open state, the stirring fan works, high-temperature gas inside the incubator body rapidly penetrates through the air port to be discharged under the driving of fan blades of the stirring fan, and the rapid cooling inside the incubator body can be realized.
Description
Technical Field
The invention relates to the field of chromatographic column boxes, in particular to a miniature chromatographic column box.
Background
The gas chromatograph is applied to various fields such as chemical industry, environmental protection and the like, but is generally used in a laboratory due to large volume. A general column box of a gas chromatograph accounts for 60% or more of the whole gas chromatograph, and a micro column box has been developed to reduce the volume of the gas chromatograph and to make the gas chromatograph easily portable. However, the existing micro chromatographic column box has the following defects: 1. the temperature inside the heat insulation box is high at a position close to the heating device in the heat insulation box in the heating mode, the temperature at a position far away from the heating device is low, and the temperature inside the heat insulation box is uneven; 2. offer on the current miniature chromatographic column case box and be used for radiating thermovent, realize the inside cooling of insulation can through opening the thermovent, this cooling mode insulation can inside cooling speed is slow, can't realize rapid cooling.
Therefore, it is an urgent problem to provide a micro column box which has uniform temperature inside the column box and can realize rapid cooling inside the column box.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide the chromatographic column box which can make the temperature in the heat insulation box uniform and can realize the rapid cooling in the heat insulation box.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the device comprises a heat insulation box body, a heat insulation cover body, a stirring assembly and a heat insulation temperature measuring device, wherein the heat insulation cover body is covered on the top end of the heat insulation box body and can be opened and closed;
the support assembly comprises a first horizontal support plate and a second horizontal support plate which are vertically arranged in the heat preservation box body, and the chromatographic column is placed on the first horizontal support plate;
the stirring assembly comprises a stirring fan and a first motor, the stirring fan is horizontally arranged between the first horizontal supporting plate and the second horizontal supporting plate, and the first motor is arranged on the outer wall of the bottom end of the heat preservation box body and penetrates through the bottom end of the heat preservation box body through a first output shaft to be in transmission connection with the stirring fan;
the temperature measuring device comprises a temperature measuring platinum resistor arranged on the first horizontal supporting plate and a temperature control circuit board arranged on the outer side of the heat preservation box body, the temperature measuring platinum resistor is connected with the input end of the temperature control circuit board through a wire, and the first motor and the heating device are connected with the output end of the temperature control circuit board through wires.
As a further improvement of the invention, the side wall of one end of the heat preservation box body is provided with an openable and closable air door component which is communicated with the heat preservation box body.
As a further improvement of the invention, the air door assembly comprises a frame body arranged on the side wall of the heat preservation box body, a second motor arranged on the outer wall of one end of the frame body, a connecting rod transversely and rotatably arranged on the inner walls of two ends of the frame body, and an air door fixedly connected with the connecting rod and capable of rotating around the connecting rod, wherein the side wall of the heat preservation box body is provided with an air opening with the same size as the air door, the second motor penetrates through the side wall of the frame body through a second output shaft and is in transmission connection with the connecting rod, and the second motor is connected with the output end of the.
As a further improvement of the invention, a plurality of air holes are uniformly formed on the first horizontal supporting plate.
As a further improvement of the invention, the heating device is a heating wire which is fixed on the upper surface of the second horizontal supporting plate through a heating wire frame.
As a further improvement of the invention, the heat preservation box body is a ceramic heat preservation box body, and a heat preservation interlayer is arranged between the inner wall and the outer wall of the heat preservation box body.
As a further improvement of the invention, one end of the cover body is hinged with the top end of the heat preservation box body.
As a further improvement of the invention, the stirring fan is made of stainless steel.
As a further improvement, compared with the prior art, the invention has the following beneficial effects:
1. the heat preservation box body provided by the invention enables heat generated by the heating device to be uniformly dispersed into the heat preservation box body under the action of the stirring fan, so that the temperature in the heat preservation box body is more uniform.
2. Compared with the prior art that the heat-insulating box body adopts the heat-radiating holes for heat radiation, when the air opening is in an open state, the stirring fan works, high-temperature gas in the heat-insulating box body rapidly penetrates through the air opening to be discharged under the driving of fan blades of the stirring fan, and the rapid cooling in the heat-insulating box body can be realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the thermal insulation box of the present invention;
in the drawings:
10. a heat preservation box body; 100. a heat-insulating interlayer;
20. a heat-preserving cover body;
30. a heating device; 300. heating the wire frame;
40. a support assembly; 400. a first horizontal support plate; 4000. air holes are formed; 410. a second horizontal support plate;
50. a stirring assembly; 500. a stirring fan; 510. a first motor;
60. a damper assembly; 600. a frame body; 610. a second motor; 620. a connecting rod; 630. a damper;
70. a temperature measuring device; 700. measuring the temperature of a platinum resistor; 710. temperature control circuit board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 and 2, the present invention relates to a micro chromatographic column box, which comprises a thermal insulation box body 10, a thermal insulation cover body 20 which covers the top end of the thermal insulation box body 10 and can be opened and closed, a stirring assembly 50 and a thermal insulation temperature measuring device 70, wherein a heating device 30 is arranged in the thermal insulation box body 10, and a supporting assembly 40 for supporting the heating device 30 and a chromatographic column is arranged in the thermal insulation box body 10;
the support assembly 40 comprises a first horizontal support plate 400 and a second horizontal support plate 410 which are arranged in the heat preservation box body 10 from top to bottom, and the chromatographic column is placed on the first horizontal support plate 400; in this embodiment, the positions of the first horizontal supporting plate 400 and the second horizontal supporting plate 410 in the thermal insulation box 10 are fixed, and the fixing manner may be that the first horizontal supporting plate 400 and the second horizontal supporting plate 410 are both fixedly connected with the inner side wall of the thermal insulation box 10.
The stirring assembly 50 comprises a stirring fan 500 and a first motor 510, the stirring fan 500 is horizontally arranged between the first horizontal support plate 400 and the second horizontal support plate 410, and the first motor 510 is arranged on the outer wall of the bottom end of the heat preservation box body 10 and penetrates through the bottom end of the heat preservation box body 10 through a first output shaft to be in transmission connection with the stirring fan 500; an output shaft of the first motor 510 is in transmission connection with the stirrer fan 500 to drive the stirrer fan to rotate.
The temperature measuring device 70 comprises a temperature measuring platinum resistor 700 arranged on the first horizontal support plate 400 and a temperature control circuit board 710 arranged outside the heat preservation box body 10, the temperature measuring platinum resistor 700 is connected with the input end of the temperature control circuit board 710 through a lead, and the first motor 510 and the heating device 30 are connected with the output end of the temperature control circuit board 710 through leads. The temperature measuring device 70 is disposed in the thermal insulation box 10, the platinum temperature measuring resistor 700 transmits the detected signal to the temperature control circuit board 710, and the temperature control circuit board 710 controls the heating device 30 to heat. The first motor 510 starts to operate to drive the stirrer fan 500 to uniformly distribute heat into the interior of the thermal insulation case 10. After the temperature is heated to the target temperature, the temperature control circuit board 710 continuously controls the temperature inside the thermal insulation box 10.
The heating device 30 is a heating wire fixed on the upper surface of the second horizontal support plate 410 by a heating wire frame 300. The heating device 30 is disposed on a second horizontal support plate 410, and the first horizontal support plate 400 is used to support a chromatography column.
As shown in fig. 2, the thermal insulation box 10 is a ceramic thermal insulation box, and a thermal insulation interlayer 100 is disposed between the inner wall and the outer wall of the thermal insulation box 10, so as to further improve the thermal insulation effect of the thermal insulation box 10. The incubator 10 has an internal volume of 200cm × 200cm × 60cm, can be used for holding capillary chromatographic columns of any size, has an overall external volume of 226cm × 226cm × 120cm, and is 1/3 of a laboratory chromatographic column box.
Specifically, one end of the cover 20 is hinged to the top end of the thermal insulation box 10.
Specifically, the first motor 510 is a high temperature resistant stirring motor, and the stirring fan 500 is made of stainless steel, so that the service life is long. The temperature in the chromatographic column box is uniform and has extremely small temperature gradient.
Example 2
As shown in fig. 1, embodiment 2 differs from embodiment 1 in that: embodiment 2 has increased air door subassembly 60 on implementing 1 basis, and when needing the cooling, temperature control circuit board 710 control second motor 610 rotates to rotate to horizontal position through connecting rod 620, make air door 630 be in the open mode, temperature measurement platinum resistance 700 transmits the signal of gathering to temperature control circuit board 710 this moment, and temperature control circuit board 710 controls heating device 30 stop work again. The first motor 510 rotates to drive the stirring fan 500 to discharge the internal heat out of the thermal insulation box 10 through the air door 630, so as to achieve rapid cooling. Compared with the prior art in which the heat dissipation is performed through the heat dissipation port, when the air port is in an open state, the stirring fan 500 works, high-temperature gas inside the heat preservation box body 10 rapidly penetrates through the air port to be discharged under the driving of fan blades of the stirring fan 500, and the rapid cooling inside the heat preservation box body 10 can be achieved.
The air door assembly 60 comprises an air door 630, a connecting rod 620 and a second motor 610, the air door 630 is fixedly connected with the connecting rod 620, the connecting rod 620 is rotatably connected with the air port, the second motor 630 is in transmission connection with the connecting rod 620 to drive the connecting rod 620 to rotate, when the air door 630 is in a first state, the air door 630 blocks the air port, when the air door 630 is in a second state, the air door 630 opens the air port, and the air door 630 has two states of blocking the air port and opening the air port. The second output shaft of the second motor 610 and the connecting rod 620 can be fixedly connected by a headless inner hexagonal top tightening screw through a rigid coupling, and the air door 630 is directly welded on the connecting rod 620. The connecting rod 620 rotates the damper 630, so that the damper 630 is opened or closed.
Example 3
As shown in fig. 1 and 2, embodiment 3 differs from embodiment 1 in that: in embodiment 3, a plurality of air holes 4000 are uniformly formed in the first horizontal support plate 400, air inside the incubator body 10 passes through the air holes 4000 to contact with the chromatographic column supported on the first horizontal support plate 400, and the arrangement of the air holes 4000 further increases the temperature rising and falling speed of the chromatographic column.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A miniature chromatographic column case which is characterized in that: the device comprises a heat preservation box body (10), a heat preservation cover body (20) which covers the top end of the heat preservation box body (10) and can be opened and closed, a stirring assembly (50) and a temperature measuring device (70), wherein a heating device (30) and a supporting assembly (40) for supporting the heating device (30) and a chromatographic column are arranged in the heat preservation box body (10);
the support assembly (40) comprises a first horizontal support plate (400) and a second horizontal support plate (410) which are vertically arranged in the heat preservation box body (10), and the chromatographic column is placed on the first horizontal support plate (400);
the stirring assembly (50) comprises a stirring fan (500) and a first motor (510), the stirring fan (500) is horizontally arranged between a first horizontal supporting plate (400) and a second horizontal supporting plate (410), and the first motor (510) is arranged on the outer wall of the bottom end of the heat preservation box body (10) and penetrates through the bottom end of the heat preservation box body (10) through a first output shaft to be in transmission connection with the stirring fan (500);
the temperature measuring device (70) comprises a temperature measuring platinum resistor (700) arranged on the first horizontal supporting plate (400) and a temperature control circuit board (710) arranged on the outer side of the heat preservation box body (10), the temperature measuring platinum resistor (700) is connected with the input end of the temperature control circuit board (710) through a lead, and the first motor (510) and the heating device (30) are connected with the output end of the temperature control circuit board (710) through leads.
2. The micro chromatography column cassette of claim 1, wherein: and an openable and closable air door component (60) communicated with the heat preservation box body (10) is arranged on the side wall of one end of the heat preservation box body (10).
3. A micro-scale chromatography column cassette according to claim 2, characterized in that: air door subassembly (60) including setting up framework (600) on heat preservation box (10) lateral wall, setting up second motor (610) at framework (600) one end outer wall, transversely rotate connecting rod (620) of setting on framework (600) both ends inner wall and can center on connecting rod (620) rotatory air door (630) with connecting rod (620) fixed connection, the lateral wall of heat preservation box (10) is provided with the wind gap unanimous with air door (630) size, second motor (610) is connected with connecting rod (620) transmission through the lateral wall that second output shaft runs through framework (600), second motor (610) link to each other through the output of wire with accuse temperature circuit board (710).
4. The micro chromatography column cassette of claim 1, wherein: the first horizontal supporting plate (400) is uniformly provided with a plurality of air holes (4000).
5. The micro chromatography column cassette of claim 1, wherein: the heating device (30) is a heating wire which is fixed on the upper surface of the second horizontal supporting plate (410) through a heating wire frame (300).
6. The micro chromatography column cassette of claim 1, wherein: the heat preservation box body (10) is a ceramic heat preservation box body, and a heat preservation interlayer (100) is arranged between the inner wall and the outer wall of the heat preservation box body (10).
7. The micro chromatography column cassette of claim 1, wherein: one end of the cover body (20) is hinged with the top end of the heat preservation box body (10).
8. The micro chromatography column cassette of claim 1, wherein: the stirring fan (500) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478596.8A CN112595798A (en) | 2020-12-15 | 2020-12-15 | Miniature chromatographic column box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478596.8A CN112595798A (en) | 2020-12-15 | 2020-12-15 | Miniature chromatographic column box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112595798A true CN112595798A (en) | 2021-04-02 |
Family
ID=75195914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011478596.8A Pending CN112595798A (en) | 2020-12-15 | 2020-12-15 | Miniature chromatographic column box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112595798A (en) |
-
2020
- 2020-12-15 CN CN202011478596.8A patent/CN112595798A/en active Pending
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