Constant-temperature bath for working viscosity liquid setting value

Abstract

The invention provides a constant-temperature bath for a working viscosity liquid setting value. The constant-temperature groove comprises a bath, a temperature controller, a temperature sensor, a heating refrigeration system and a stirring circulation device. A mixing barrel is disposed inside the bath and is provided with a fluid inlet and a fluid outlet. The height of the fluid inlet is higherthan the height of the fluid outlet. The bottom end of the bath is provided with a diverter grid. The horizontal installation height of the diverter grid is higher than the height of the fluid outletof the mixing barrel. The space enclosed by the outer wall of the mixing barrel and the diverter grid is the working area of the bath. The fluid in the mixing barrel enters the working area of the bath through the fluid outlet and the diverter grid. The fluid of the working area enters the mixing barrel through the fluid inlet. The temperature sensor is fixed in the working area of the bath. The input end and the output end of the temperature controller are respectively connected to the temperature sensor and the heating refrigeration system. The heating refrigeration system and the stirring circulation device are fixed in the mixing barrel. The invention can solve the problem of temperature accuracy, uniformity, and stability of the current constant-temperature bath.

Description

technical field [0001] The invention relates to a constant temperature device, in particular to a constant temperature tank for setting the value of working viscosity liquid. Background technique [0002] The viscosity of the liquid comes from the molecular attraction. As the temperature rises, the distance between molecules increases, the molecular attraction decreases, the internal friction decreases, and the viscosity decreases. The relationship between viscosity and temperature is very close. Under normal temperature and pressure, when the temperature changes by 1°C, the viscosity of the liquid changes by a few percent to more than ten. Therefore, the accuracy, uniformity and stability of the temperature of the constant temperature bath are very important for the determination of the working viscosity liquid. [0003] In the fixed value of the working viscosity liquid and the verification / calibration of the capillary viscometer, the judgment of the timing starting point...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of poor temperature accuracy, uniformity and stability in the current constant temperature tank, the present invention provides a constant temperature tank for setting the value of the working viscosity liquid, which can provide the required value for the setting of the working viscosity liquid. temperature environment

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