Drainage system of water heater

Abstract

The invention discloses a drainage system of a heat water. The drainage system comprises a hot water pipe A, a cold water pipe and a water mixing valve and one end of the hot water pipe A and one endof the cold water pipe are fixedly communicated with a hot water port and a cold water port of the water mixing valve respectively; the system further comprises a connector pipe A, a connector pipe B,a hot water pipe B, an air inlet pipe, a reversing ball block, a rotating column inhaul cable, a torsional spring, a bearing and a water distribution pipe; an inner line, connected with an adjustinghandle of the water mixing valve, of the inhaul cable retracts, the inner line end, connected with a rotating column, of the inhaul cable rotates together with the rotating column to reset under effect of the torsional spring; and at the moment, the reversing ball block rotates from the position of blocking the air inlet pipe to the position of blocking the hot water pipe A, hot water in an electric heating water tank cannot enter the hot water pipe A again, external air enters the air inlet pipe to continuously press down the hot water in the hot water pipe A, and the hot water in the hot water pipe A is discharged from the water distribution pipe. Thus, the problem that the hot water in the hot water pipe cannot be discharged after the water mixing valve is closed in winter at present issolved.

Description

technical field

[0001] The invention belongs to the technical field of hot water pipes, and relates to a water heater drainage system. Background technique

[0002] In the current water heater pipeline laying, since the water mixing valve is far away from the water outlet of the water heater, the hot water in the hot water pipe cannot be discharged after the water mixing valve is closed in winter. The water in the hot water pipe is released earlier, which is extremely inconvenient to use, and will cause the cold water in the cold water pipe and the hot water pipe to be wasted simultaneously. Contents of the invention

[0003] In order to solve the above technical problems, the present invention provides a water heater drainage system.

[0004] The present invention is achieved through the following technical solutions.

[0005] A drainage system for a water heater provided by the present invention comprises a hot water pipe A, a cold water pipe, and a water mixing valve,...

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