Efficient constant-temperature water bath box used for laboratory and capable of conducting automatic purification

Abstract

The invention discloses an efficient constant-temperature water bath box used for a laboratory and capable of conducting automatic purification. The efficient constant-temperature water bath box comprises a water bath box body, a water circulation device and a control device, wherein a bearing plate, a water purification tank and a temperature sensor are mounted in the water bath tank body, an inlet of the water circulation device communicates with one side of the water bath tank body, an outlet of the water circulation device communicates with the other side of the water bath tank body, a semiconductor chilling plate is arranged at the bottom of the water bath box body, the side wall of the water bath box body is of a hollow structure, a heat insulation layer is arranged in the side face of the water bath box body, the bearing plate is installed at the bottom of the water bath box body, and a control system is connected with the water circulation device, the temperature sensor and the semiconductor chilling plate. According to the invention, the water exchanging frequency of the water bath box is small, a temperature adjusting speed is high, and the temperature of water in the water bath box body is relatively uniform.

Description

technical field [0001] The invention belongs to the technical field of road engineering laboratory equipment, and relates to a high-efficiency constant temperature water bath box for automatic purification in laboratories. Background technique [0002] The constant temperature water bath is an essential experimental equipment in the laboratory in the field of road engineering. The basic tests in many test procedures require the use of a constant temperature water bath for water bath insulation. Such as the softening point, ductility, penetration of asphalt materials, and the immersion Marshall test of the mixture test, etc. [0003] There are many problems in the constant temperature water bath used in the current laboratory. For example, when testing samples in a water bath for a long time, the impurities on the surface will pollute the water body in the water bath box, and frequent water changes are required; after frequent water changes, the water in the water bath box m...

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Problems solved by technology

For example, when testing samples in a water bath for a long time, the impurities on the surface will pollute the water body in the water bath box, and frequent water changes are required; after frequent water changes, the water in the water bath box must reach the preset temperature, so that the drag Slow down the progress of the entire experiment; frequent opening of the water bath will cause temperature changes in the water bath; due to the large space of the entire water bath and the poor thermal conductivity of the water, the temperature of the entire water bath is inconsistent, especially near the heating / cooling Partial temperature of the device is higher / lower

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