A cooler for thermal analysis instruments

Abstract

The invention provides a cooler for a thermal analysis instrument. The cooler for the thermal analysis instrument comprises a cold-conducting piece, a refrigerant nozzle, a refrigerant inlet pipe, a refrigerant outlet pipe and a transition joint, wherein the cold-conducting piece is hollow; one end of the cold-conducting piece is closed to form a cold-conducting surface and one end of the cold-conducting piece is open; the refrigerant nozzle is hollow and is nested in the cold-conducting piece through clearance; the refrigerant inlet pipe and the refrigerant outlet pipe are positioned on the open end side of the cold-conducting piece; the transition joint is hermetically connected with the open end of the cold-conducting piece and one end, far away from the cold-conducting surface, of therefrigerant nozzle; the inner wall of the refrigerant nozzle and the transition joint form a refrigerant inner cavity; the outer wall of the refrigerant and the inner wall of the cold-conducting pieceform a refrigerant outer cavity; the refrigerant inlet pipe is communicated with the refrigerant inner cavity; the refrigerant outlet pipe is communicated with the refrigerant outer cavity. Accordingto the cooler for the thermal analysis instrument, cold energy can be conducted to a furnace body of the thermal analysis instrument rapidly; furthermore, a structure with inner and outer double layers is formed, so that the refrigeration effect can be greatly improved.

Description

technical field [0001] The invention relates to a cooler for thermal analysis instruments. Background technique [0002] At present, thermal analysis technology is used to measure the change of physical properties of substances with temperature under program temperature control, and is used to study physical parameters such as heat, mechanics, acoustics, optics, electricity, and magnetism that occur at a certain temperature. Change is a very important method of analysis and testing. In addition, different technical methods correspond to different thermal analysis instruments, but usually thermal analysis instruments include temperature controllers, furnace bodies, physical detection units, atmosphere controllers and data processing systems, among which the furnace body is the core component of thermal analysis instruments , to provide a uniform temperature environment for the sample to be supported. [0003] Specifically, it can be divided into differential scanning calori...

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Problems solved by technology

[0005] However, the current product performance indicators are too low. Most commercialized differential scanning calorimeters do not have a low temperature zone, and only a few have low temperature indicators, which are only above 103K. At the same time, the cooling rate is also lower than 80K / min, which is difficult to meet market demand.

In addition, research on differential scanning calorimeters applied to magnetic environments is almost in its infancy

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