An automatic circulating water heater used in combination with a stove and a solar water heater

Abstract

An automatic circulating water heater used in combination with stoves and solar water heaters, mainly composed of a water tank, a water tank partition, a U-shaped water pipe in the tank, a water inlet one-way water valve, a water outlet one-way water valve, a water inlet pipe, a water outlet pipe, safety valve etc. The water tank partition is set at the center of the water tank, the top of the water tank partition is not closed, the top of the water tank partition is fixed with an inverted U-shaped water pipe, and the water tank is connected with a water inlet pipe and an outlet pipe, which are respectively installed at the bottom of the two sides of the water tank separated by the water tank partition . A check valve is installed on the water inlet pipe and the water outlet pipe to control the direction of water flow. A safety air valve is installed on the top of the water tank, and the pressure will be automatically reduced if the set air pressure is exceeded.

Description

technical field [0001] The invention relates to a water heater, in particular to an automatic circulating water heater used in combination with a stove and a solar water heater. Background technique [0002] There are vast mountainous villages in our country. Due to inconvenient transportation and scattered residents, the main way for farmers to heat in winter is to use firewood stoves for heating. The source of hot water in winter mainly depends on solar water heaters and firewood stoves. At that time, solar energy could not provide hot water, and the voltage of rural electricity was unstable and low, and it was not easy to use electricity to heat hot water, and it was not economical. Its domestic hot water is mainly provided by burning water in a wood-fired stove. Its disadvantages are: when hot water is needed, the water in the kettle boils slowly, which cannot meet the needs in time; The air is exhausted, and the heat is lost in vain. Later, some technical workers adde...

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Problems solved by technology

[0002] There are vast mountainous villages in our country. Due to inconvenient transportation and scattered residents, the main way for farmers to heat in winter is to use firewood stoves for heating. The source of hot water in winter mainly depends on solar water heaters and firewood stoves. At that time, solar energy could not provide hot water, and the voltage of rural electricity was unstable and low, so it was not easy to use electricity to heat hot water, and it was not economical

Its domestic hot water is mainly provided by burning water in a wood-fired stove. Its disadvantages are: when hot water is needed, the water in the kettle boils slowly, which cannot meet the needs in time; The air is exhausted, and the heat is lost in vain

This causes the solar water storage device to be far away from the furnace heating device, and the water between the two devices cannot convect through the interconnected water pipes. Even if there is weak convection, due to the relatively long length of the water pipes, the hot water reaches the solar energy through the water pipes. The heat in the water tank has already been dissipated in the water pipe, even if the water pipe is provided with an insulation layer, the effect is not obvious, because the length of the water pipe is long, the flow rate of the water convection is very slow, and no matter how good the heat preservation effect is, the heat of the hot water in the water pipe is relatively small It will also be lost in large quantities over a long period of time

It is very inconvenient to use the hot water device by manually turning on the water circulation pump and heating the water with a small flow rate. If the power is cut off or the operation is forgotten during use, it may cause the water tank to be dry-boiled or the solar water heater may be filled with excessive water. Potential to damage equipment causing dangerous situations and wasting water resources

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