a constant temperature bath

Abstract

The invention discloses a constant temperature liquid tank. The constant temperature liquid tank includes a liquid circulation module, a heat exchange module and a control module, wherein the liquid circulation module is a closed structure; the liquid circulation module includes a water tank, a liquid pipeline, a water pump and a heat shield, and the heat exchange module includes a first thermoelectric assembly and The second thermoelectric assembly, the first thermoelectric assembly and the second thermal resistance are respectively attached to two opposite side walls of the zigzag pipe in the liquid pipeline, and the control module is connected to the water pump, the first thermoelectric assembly and the second thermoelectric assembly. The technical solution provided by the embodiments of the present invention enables the temperature of the liquid in the water tank to be adjusted in time, and improves the uniformity and stability of the temperature of the liquid in the water tank.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of liquid temperature control, in particular to a constant temperature liquid tank. Background technique [0002] The constant temperature liquid tank is a necessary condition in chemical, biological and physical experiments. It is widely used in medical and health, food industry, metallurgical industry and other fields, and is favored by users. [0003] The constant temperature liquid tank in the prior art includes a water tank and a liquid flow pipe connected to the water tank. The side wall of the liquid flow pipe away from the water tank is closely attached to the thermoelectric assembly, and the heat or cold generated by the thermoelectric assembly can be transferred to the liquid flow pipe. liquid, and then adjust the temperature of the liquid in the water tank through the liquid flow to keep the temperature of the liquid in the water tank constant. Among them, the liquid flow pi...

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Problems solved by technology

Among them, the liquid flow pipe is a groove-shaped structure, that is, a non-sealed structure, so the liquid flow pipe is a non-pressure-bearing circuit, which cannot withstand high pressure, and the flow velocity of the liquid inside it is small, resulting in the liquid in the liquid flow pipe The speed of heat exchange with the thermoelectric components is limited, and the temperature of the liquid in the water tank cannot be adjusted quickly, resulting in a decrease in the temperature uniformity and stability of the water tank and the liquid

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