Minisize chromatographic column box with high precision temperature control system

A temperature control and temperature control module technology, applied in temperature control, non-electric variable control, control/regulation system, etc., can solve the problem of imprecise temperature control, etc., and achieve good response time, excellent thermal conductivity, and high strength.

Inactive Publication Date: 2006-12-13
张西咸 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect of imprecise temperature control in the existing traditional micro-chromatographic column box application technology, and to provide a new type of portable micro-chromatographic column box, which has integration, miniaturization, universal and modular Chemical, excellent thermal insulation performance, fast heating / cooling speed, high temperature control accuracy, etc.

Method used

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  • Minisize chromatographic column box with high precision temperature control system

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Embodiment 1

[0036] Such as figure 1 As shown, the high-precision temperature control miniature chromatographic column box of the present invention includes a box body 1, and the external dimensions of the box body are length*width*height equal to 80mm*80mm*80mm, and the capillary column heating skeleton 2 and the winding The capillary column 3 on the skeleton, the heating device 4 and the precision thermal resistance 5 arranged on the inner wall of the skeleton, and the temperature control system arranged outside the box. The capillary column heating skeleton is made of aluminum-magnesium alloy material, and the skeleton is cylindrical, with a cylinder diameter of 60mm and a cylinder height of 60mm. The total winding length is 1 meter, and the arrangement is closely arranged. The heating device is a silicone rubber flexible electric heating film coated on the inner wall of the frame, which is composed of a high temperature resistant fiber reinforced material as the main insulator and an ...

Embodiment 2

[0042] Such as figure 1 As shown, the high-precision temperature control micro-chromatographic column box of the present invention includes a box body 1, and the outer dimensions of the box body are length*width*height equal to 160mm*160mm*160mm, and the capillary column heating skeleton 2 and the winding The capillary column 3 on the skeleton, the heating device 4 and the precision thermal resistance 5 arranged on the inner wall of the skeleton, and the temperature control system arranged outside the box. The capillary column heating skeleton is made of aluminum-magnesium alloy material, and the skeleton is cylindrical, with a cylinder diameter of 120mm, a cylinder height of 90mm, and a wall thickness of 1mm. wrapped around the skeleton. The total length of the capillary columns is 60 meters, and the arrangement is closely spaced. The heating device is a silicone rubber flexible electric heating film coated on the inner wall of the frame, the thickness of the electric heati...

Embodiment 3

[0049] Such as figure 1 As shown, the high-precision temperature control micro-chromatographic column box of the present invention includes a box body 1, and the outer dimensions of the box body are length*width*height equal to 120mm*120mm*120mm, and the capillary column heating framework 2 and the winding The capillary column 3 on the skeleton, the heating device 4 and the precision thermal resistance 5 arranged on the inner wall of the skeleton, and the temperature control system arranged outside the box. The capillary column heating frame is made of aluminum-magnesium alloy material, and the frame is cylindrical, with a cylinder diameter of 100mm, a cylinder height of 70mm, and a wall thickness of 0.2mm. Wrapped tightly around the skeleton. The total length of the capillary column winding is 30 meters, and the arrangement is arranged at intervals. The heating device is a silicone rubber flexible electric heating film coated on the inner wall of the frame, the thickness of...

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Abstract

The invention discloses a micro chromatographic column tank which comprises a tank body, capillary column heating frame set in the tank, capillary column bound around the frame, a heating device set on the inner wall of the frame, a precise thermo resistor and a temperature control system set out of the tank. The capillary column heating frame employs metal alloy material; the capillary column employs quartz material; the heating device is flexible electrical heating membrane coated on the inner wall of the frame; the temperature control system includes a temperature control module, the precise thermo resistor connects with the signal input terminal of the temperature control module, the output terminal of the temperature control module connects with the insulating single-phase alternative current modulator module of which one end of the output terminal connects with the heating device, and the other end of the output terminal connects with the input power.

Description

technical field [0001] The invention relates to a component of an analysis instrument, in particular to a portable miniature and modularized capillary chromatographic column box with a high-precision temperature control system. Background technique [0002] Portable micro-column box is a detection instrument that works under normal temperature and pressure. The heating frame inside the chromatographic column box is made of metal material to make the capillary column cylindrical frame, and the capillary column is wound on the cylindrical frame, and the capillary column is heated by the electric heating material. Then the thermal resistance senses the temperature of the heating frame to the temperature control circuit, which controls the SSR (solid state relay) to achieve the purpose of temperature adjustment. [0003] However, due to the technical problems of heating materials and heating elements, at present, the maximum operating temperature of the traditional portable mic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/54H05B3/00H05B1/00G05D23/00
Inventor 张西咸方向张颿陈莲
Owner 张西咸
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