Pipeline frost-crack preventing automatic protective valve in water heater

Abstract

The invention relates to the technical field of water heaters, and particularly relates to a pipeline frost-crack preventing automatic protective valve in a water heater. A solenoid drain valve is arranged in a valve body; the solenoid drain valve comprises a solenoid valve core, and a solenoid coil arranged outside the solenoid valve core; a drain cavity is also arranged in the valve body; the solenoid valve core is arranged in the drain cavity; the lower part of the drain cavity is connected with a drain opening; a solenoid valve core spring pushing the solenoid valve core is arranged in the drain cavity; the drain opening is opened and closed by the lower end of the solenoid valve core; the lower part of the drain cavity is communicated with a water outlet through a connecting pipeline; the side part of the drain cavity is communicated with a valve upper cavity through a pipeline. The valve solves the problem that pipelines in the water heater are frozen and cracked through the effect of the solenoid drain valve, eliminates the hidden danger of water leakage, and avoids unnecessary economic loss brought to users.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an automatic protection valve for preventing freezing and cracking of pipelines in the water heater. Background technique [0002] The water heater has become an indispensable appliance when people take a bath, especially in winter, it can quickly provide hot water for people to take a bath. In order to be more convenient for people to use, the water inlet pipe of the water heater is usually directly communicated with the tap water pipe. When the user needs hot water, he only needs to open the shower ball valve, and the hot water will spray out soon. After bathing, after the user closes the shower ball valve, there will always be water stored in the water heater and its connected pipelines. But when the temperature drops sharply, especially in winter in the north, the remaining water will freeze and expand, often cracking the water heater and its connected pipes. If it me...

AI Technical Summary

Problems solved by technology

But when the temperature drops sharply, especially in winter in the north, the remaining water will freeze and expand, often cracking the water heater and its connected pipes. If it melts, the water source of the tap water pipe will flow out along the breach, causing a water leakage accident. In severe cases, the water will drown household items and bring economic losses to users.

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