Plunger water heater

Abstract

The invention discloses a plunger water heater which comprises a cylindrical water tank. A plunger capable of moving in a reciprocating mode between a limitation position of the left end and a limitation position of the right end of an inner cavity of the water tank is arranged in the inner cavity of the water tank. The water tank is divided into two cavities by the plunger. Heating tubes capable of heating water in the two cavities respectively are arranged in the two cavities. The two cavities of the water tank are respectively provided with a water inlet pipe and a water outlet pipe. The left end and the right end of the cavity of the water tank are respectively provided with a position switch capable of inducting whether the plunger runs to the limitation positions. The plunger water heater has the advantages that a cold water inlet and a hot water outlet do not interfere with each other, when the plunger moves to the right limitation position, cold water in the left side cavity has become hot water at preset temperature for a long time, so that hot water can be tested for a long time without waiting; further, a sealing ring on the cylindrical face of the plunger can automatically clean incrustation attached to the inner wall of an inner container of the water tank, so that the scaling unsanitary condition of the water tank is eradicated.

Description

[0001] technical field [0002] The invention relates to a water heater, in particular to a plunger water heater. Background technique [0003] At present, traditional water heaters generally include a water tank and a heating device arranged in the water tank. The cold and hot water pipes are connected in the inner tank. The hot water is pressed out, and the mixing of cold and hot water occurs at this time, which causes the loss of heat neutralization and the temperature of the hot water outlet is unstable, and the scale in the water tank cannot be cleaned. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a plunger water heater which not only can stabilize the outlet temperature of hot water but also has a self-cleaning function. [0005] In order to solve the above-mentioned technical problems, the plunger water heater of the present invention includes a cylindrical water tank, and a plunger capable of reciproc...

AI Technical Summary

Problems solved by technology

[0003] At present, traditional water heaters generally include a water tank and a heating device arranged in the water tank. The cold and hot water pipes are connected in the inner tank. The hot water is pressed out, and the mixing of cold and hot water occurs at this time, which causes the loss of heat neutralization and the temperature of the hot water outlet is unstable. In addition, the scale in the water tank cannot be cleaned.

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