An expansion tank

Abstract

The utility model discloses an expansion water tank, including the kettle body, the upper portion left and right of kettle body is provided with first safety interface and second safety interface, first safety interface and second safety interface are corresponded to independently provided with first chamber and second chamber respectively, the liquid temperature that circulates in first chamber and second chamber is different, be provided with first partition chamber between first chamber and second chamber, first partition chamber bottom is provided with a plurality of first through -hole, make first partition chamber direct communication with atmosphere, this water tank first through -hole passes at the communication channel of establishment with atmosphere, can balance the air pressure of partition chamber and outside in real time, avoid this pressure difference to the chamber wall transmission and form additional stress, the leakage cooling liquid can infiltrate first partition chamber preferentially, owing to the drainage effect of first through -hole, and the cooling liquid that infiltrates can discharge from the bottom quickly, forms the liquid mark or the dripping phenomenon that can be seen directly.

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