Temperature regulating device and temperature instrument checking device with same

Abstract

The invention relates to regulation of the temperature of a temperature instrument checking device in the field of nuclear power, aims to solve the problems of low temperature dropping speed, small temperature dropping range and high temperature dropping cost in the prior art, and provides a temperature regulating device, which comprises a temperature controller, a direct current driving circuit, a semiconductor thermoelectric piece, a heat conducting device and a radiating device, wherein the temperature controller is connected with a temperature detection device; a signal output end of the temperature controller is connected with a signal input end of the direct current driving circuit to control the turn-on and turn-off of the direct current driving circuit; an output end of the direct current driving circuit is connected with the semiconductor thermoelectric piece to make the semiconductor thermoelectric piece operate; the heat conducting device comprises a heat conducting substrate; a lower bottom surface of the semiconductor thermoelectric piece is attached to a top surface of the heat conducting substrate; and a heat conducting rod is connected to the lower bottom surface or a side face of the heat conducting substrate. The temperature regulating device has the advantages that: the semiconductor thermoelectric piece is adopted for refrigeration, a temperature dropping speed is low, a temperature dropping range is large, and temperature dropping cost is low.

Description

technical field [0001] The invention relates to temperature adjustment of a temperature instrument verification device in the nuclear power field, in particular to a temperature adjustment device for regulating the temperature of a temperature instrument verification device in the nuclear power field. Background technique [0002] The temperature calibration furnace is a device for calibrating temperature instruments. The traditional temperature instrument calibration furnace is a constant temperature tank, which uses a stirrer to stir the working medium in the constant temperature tank to flow up and down in the working area, and exchanges heat with the heater to make the working medium reach the set temperature, and through stirring The device pushes the working medium to flow in the working area, so that the temperature of the working medium is in a dynamic equilibrium state within the set range. When cooling the temperature calibration furnace, the working medium is usu...

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Problems solved by technology

[0004] In order to solve the problems of slow cooling speed, small cooling range and high cooling cost of the temperature meter calibration device in the prior art, the present invention proposes a temperature regulating device, which includes a temperature controller, a DC drive circuit, a semiconductor A thermoelectric sheet, a heat conduction device and a heat dissipation device, the temperature controller is connected with a temperature detection device, and the signal output end of the temperature controller is connected with the signal input end of the DC drive circuit to control the DC drive circuit The on-off of the direct current driving circuit is connected with the semiconductor thermoelectric piece to make the semiconductor thermoelectric piece work; the heat conduction device includes a heat conduction base; the semiconductor thermoelectric piece The lower bottom surface is fitted and connected to the top surface of the heat conduction base, and a heat conduction rod is connected to the lower bottom surface or the side of the heat conduction base

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