Cylinder-shaped air medium high temperature constant temperature bath

Abstract

The invention discloses a cylindrical air medium high-temperature thermostatic bath which comprises a shell, an insulating layer, an inner tank, an insulation cover plate, a temperature sensor, a heater, a motor and a temperature controller; the key points of the thermostatic bath lie in that: the internally lower part of the shell is provided with the motor and the temperature sensor; the upper middle part of the shell is provided with the inner tank; an output shaft of the motor runs through the insulating layer and the bottom of the inner tank, and is fixedly connected with a centrifugal fan blade at the bottom of the inner tank; the middle of the inner tank is fixedly provided with a porous uniform-temperature cylinder; a cylindrical air deflector and the heater are arranged between the inner tank and the porous uniform-temperature cylinder; the working medium of the inner tank is an air medium; the temperature sensor is arranged between the porous uniform-temperature cylinder and the cylindrical air deflector; the insulation cover plate covers an upper opening of the inner tank and is provided with small through holes used for inserting a standard thermometer and a thermometer to be detected. The bath successfully realizes the high-temperature thermostatic bath taking the air medium as the working medium and has the advantages of safety, environmental protection, multiple purposes, being economical and wide working temperature range.

Description

technical field [0001] The invention relates to an air medium high temperature constant temperature device, in particular to an air medium high temperature constant temperature tank without a refrigeration device, and more particularly to a cylindrical air medium high temperature constant temperature tank. Background technique [0002] At present, in order to verify or compare thermometers or temperature sensors, constant temperature baths are needed, but in the prior art, the constant temperature baths are mainly liquid medium constant temperature baths, and liquid medium constant temperature baths need different liquid media and different constant temperature tank. For example, when the temperature required for the verification or comparison of thermometers or temperature sensors is below 0°C, the liquid medium is alcohol medium, and the corresponding alcohol medium low-temperature constant temperature bath is required; when the verification or comparison of thermometers o...

AI Technical Summary

Problems solved by technology

Although the liquid medium constant temperature bath has a high-precision thermometer or temperature sensor for verification or comparison, the liquid medium constant temperature bath also has some shortcomings: First, different liquid media and different constant temperature baths are required in the constant temperature section with different requirements. The use of its liquid medium and constant temperature tank is limited, resulting in the need for multiple liquid media and multiple constant temperature tanks when the same thermometer or temperature sensor is used for verification or comparison; When the medium is at a high temperature, the volatiles of the oil medium will affect the environment and human health, and there are defects in environmental protection; the third is that the oil medium is at a high temperature and the alcohol medium is at a higher temperature, and it is easy to catch fire and explode. security flaws

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