CN217007150U

CN217007150U - Chromatographic capillary column box

Info

Publication number: CN217007150U
Application number: CN202220638709.4U
Authority: CN
Inventors: 王勇; 王赞; 王德军; 王浩; 高雷; 马运会
Original assignee: Rainbow Chemical Instr Co ltd Shandong Lunan
Current assignee: Rainbow Chemical Instr Co ltd Shandong Lunan
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-19
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a chromatographic capillary column box, which relates to the technical field of chromatographic column boxes and comprises a box body, wherein a box door is arranged at the front end of the box body, an armored heating wire is arranged in the box body and fixed on the inner wall of a box body back plate through a support, a fan is arranged on one side, away from the back plate, of the armored heating wire, a capillary column is arranged on the outer side of the fan, an air inlet door is arranged at the bottom of the box body, an air blower is connected to the outer side of the air inlet door, an air outlet door is arranged at the lower end of one side of the box body, a detector and a vaporization chamber are further arranged on the box body, and the detector and the vaporization chamber are respectively connected with the two ends of the capillary column.

Description

Chromatographic capillary column box

Technical Field

The utility model relates to the technical field of chromatographic column boxes, in particular to a chromatographic capillary column box.

Background

The chromatograph first separates the mixture using a chromatographic column and then sequentially detects the separated components using a detector. The gas chromatograph is a separation and analysis tool for multi-component mixture, and it uses gas as mobile phase and adopts column chromatography technique of flushing method. When the multi-component analysis substance enters the chromatographic column, the distribution coefficients of gas phase and fixed liquid-liquid phase of each component in the chromatographic column are different, so that the components have different running speeds in the chromatographic column, sequentially leave the chromatographic column after a certain column length, enter a detector, are converted into electric signals after detection, and are sent to a data processing workstation, thereby completing the qualitative and quantitative analysis of the substance to be detected. The chromatographic capillary column is an important element for separating and analyzing substances in gas chromatography, and is placed in a column box with a certain temperature.

The chromatographic column box is a key component of the chromatographic instrument, and the performance indexes of the chromatographic column box determine the analysis precision of the chromatographic instrument and the consistency, stability and reliability of the instrument. Common chromatographic column boxes mainly comprise an air bath column box and an electric heating column box. The principle of the air bath column box is that air is heated firstly, and then the column box is heated by hot air, and the technology is slow in temperature rise and fall speed and is not suitable for temperature programmed chromatography. The principle of electrical heating post case is earlier to the post case heating, with the mode heating capillary chromatographic column of conduction, this technique goes up and down the temperature speed general, but the consumption is big, resource-wasting to, the chromatographic column case volume of using at present is great, portable not convenient for.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model aims to provide a chromatographic capillary column box, which can solve the technical problems of general temperature rise and fall speed, large power consumption and large volume of the existing electric heating column box.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides a chromatogram capillary column case, includes the box, the box front end is equipped with the chamber door, the inside armor heater strip that is equipped with of box, the armor heater strip passes through the support to be fixed on the inner wall of box backplate, one side that the backplate was kept away from to the armor heater strip is equipped with the fan, the fan outside is equipped with the capillary column, the bottom half is equipped with the air inlet door, the outside of air inlet door is connected with the air-blower, box one side lower extreme is equipped with the air outlet door, still be provided with detector and vaporizer on the box, the detector is connected with the capillary column both ends respectively with the vaporizer.

Preferably, the armored heating wire and the fan are concentrically arranged, and the diameter of the armored heating wire is larger than that of the outer ring of the fan.

Preferably, the number of the brackets is eight, and the eight brackets are distributed on the circumference of the circular armored heating wire at equal intervals.

Preferably, the fan is driven by a motor, and the motor is fixedly connected to the outer side of the back plate of the box body.

Preferably, the temperature sensor is fixedly arranged on the inner wall of the box body.

Preferably, the outer side of the box body is also provided with an insulating layer.

Preferably, the heat-insulating layer is made of glass fiber heat-insulating cotton.

Compared with the prior art, the utility model has the beneficial effects that:

1. the heat insulation layer is arranged on the outer side of the box body, so that the temperature in the box body is favorably kept.

2. Through setting up the fan, do benefit to and blow away evenly the heat of armor heater strip in the box for the temperature improves rapidly.

3. The column box heating adopts an armored heating wire, which is beneficial to avoiding the problem of insulation of a heating power supply in a small space.

4. The temperature sensor is arranged, so that the temperature value in the box body can be monitored, and the opening and closing of the air inlet door and the air outlet door can be controlled; the air blower is favorable for sending outside air into the box body to realize cooling.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a front view of a chromatography capillary cartridge in accordance with the present invention;

fig. 2 is a left side view of a chromatography capillary column box according to the present invention.

Description of reference numerals:

1-box body, 2-box door, 3-armored heating wire, 4-bracket, 5-fan, 6-air inlet door, 7-blower, 8-air outlet door, 9-detector, 10-vaporization chamber, 11-temperature sensor, 12-heat preservation layer.

Detailed Description

The utility model will be described in detail by way of example with reference to the accompanying drawings, which form a part hereof, and in which it is to be understood that the described embodiments are by way of illustration only, and not by way of limitation.

As shown in fig. 1-2, a chromatographic capillary column box comprises a box body 1, wherein a box door 2 is arranged at the front end of the box body 1, an armored heating wire 3 is arranged inside the box body 1, and the column box is heated by the armored heating wire 3, so that the problem of heating power insulation in a small space is avoided; the armored heating wire 3 is fixed on the inner wall of the back plate of the box body 1 through the brackets 4, the number of the brackets 4 is eight, and the eight brackets 4 are distributed on the circumference of the round armored heating wire 3 at equal intervals, so that the stability of the armored heating wire 3 is improved; one side that armor heater strip 3 kept away from the backplate is equipped with fan 5, armor heater strip 3 sets up with fan 5 is concentric, the diameter of armor heater strip 3 is greater than the diameter of fan 5 outer lane, through setting up fan 5, does benefit to and blows off evenly the heat of armor heater strip 3 in box 1 for the temperature improves rapidly. The fan 5 is driven by a motor, and the motor is fixedly connected to the outer side of the back plate of the box body 1. A capillary column is arranged on the outer side of the fan 5, an air inlet door 6 is arranged at the bottom of the box body 1, an air blower 7 is connected to the outer side of the air inlet door 6, an air outlet door 8 is arranged at the lower end of one side of the box body 1, the air blower 7 rotates when the temperature is reduced, the air inlet door 6 and the air outlet door 8 are opened, the wind direction rotates for a circle in the box body 1, finally the wind is discharged through the air outlet door 8, when the temperature is reduced to a set temperature, the air blower 7 stops rotating, and the air inlet door 6 and the air outlet door 8 are automatically closed; the box body 1 is also provided with a detector 9 and a vaporizing chamber 10, and the detector 9 and the vaporizing chamber 10 are respectively connected with two ends of a capillary column. The temperature control box further comprises a temperature sensor 11, and the temperature sensor 11 is fixedly arranged on the inner wall of the box body 1. The temperature sensor 11 is arranged to facilitate monitoring of the temperature value in the box body 1, so that opening and closing of the air inlet door 6 and the air outlet door 8 are controlled; the box 1 outside still is equipped with heat preservation 12, heat preservation 12 adopts glass fiber heat preservation cotton, glass fiber heat preservation cotton has that coefficient of heat conductivity is low, sound absorption effect is good, characteristics such as long, tensile strength are high.

The working principle is as follows: firstly, after the power is switched on, the armored heating wire 3 is heated, and the fan 5 blows the heat of the armored heating wire 3 uniformly. Secondly, the analysis substance enters the capillary column after passing through the vaporizing chamber 10, is separated for a period of time, is detected by the detector 9 and then is converted into an electric signal to be sent to the data processing workstation, thereby completing the qualitative and quantitative analysis of the measured substance. Finally, the blower 7 cools the inside of the case 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the application concepts of the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The utility model provides a chromatogram capillary column case, includes box (1), box (1) front end is equipped with chamber door (2), its characterized in that: the utility model discloses a box, including box (1), fan, air inlet door (6), box (1), detector (9), vaporizer (10), box (1), support (4), fan (5), capillary column, box (1) bottom, air-blower (7) are connected to the outside of air inlet door (6), box (1) one side lower extreme is equipped with air outlet door (8), still be provided with detector (9) and vaporizer (10) on box (1), detector (9) and vaporizer (10) are connected with capillary column both ends respectively.

2. A chromatography capillary column cassette as claimed in claim 1, wherein: the armored heating wire (3) and the fan (5) are arranged concentrically, and the diameter of the armored heating wire (3) is larger than that of the outer ring of the fan (5).

3. A chromatography capillary column kit as claimed in claim 2, wherein: the number of the brackets (4) is eight, and the eight brackets (4) are equidistantly distributed on the circumference of the circular armored heating wire (3).

4. A chromatography capillary column cassette as claimed in claim 1, wherein: the fan (5) is driven by a motor, and the motor is fixedly connected to the outer side of the back plate of the box body (1).

5. A chromatography capillary column cassette as claimed in claim 1, wherein: the temperature control box is characterized by further comprising a temperature sensor (11), wherein the temperature sensor (11) is fixedly arranged on the inner wall of the box body (1).

6. A chromatography capillary column cartridge according to claim 1, wherein: and a heat-insulating layer (12) is also arranged on the outer side of the box body (1).

7. A chromatography capillary column cartridge according to claim 6, wherein: the heat-insulating layer (12) is made of glass fiber heat-insulating cotton.