Self-circulation pipeline system of multifunctional solar water heater

Abstract

The invention provides a self-circulation pipeline system of a multifunctional solar water heater. The system is structurally composed of a solar heat collection system, a temperature difference pump self-circulation system, a domestic water system and a heating water circulation system. The solar heat collection system is separated from the domestic hot water system, so that drinking water quality can be ensured, and staleness water and high-mineral-substance water can be prevented from being drunk. The domestic water system adopts a tap water injection method, hot water is discharged by injecting tap water, the quantity of used hot water is equal to that of the injected tap water, heat of the domestic water comes from the solar heat collection system, and winter heating hot water also comes from the solar heat collection system. The water circulation system adopts the pump forced circulation and automatically discharges circulation water of a solar heat collector into a heat preservation tank in auxiliary mode, so that the system can still be used in winter in the northern region where temperature is low.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a self-circulation pipeline system of a multifunctional solar water heater. Background technique [0002] In the traditional vacuum tube solar water heater, the water storage tank is set on the upper part of the vacuum tube collector. The shortcomings in use are: the solar water storage tank uses a water level controller to control the intermittent water injection, so the hot water heated by solar energy has a long storage time and is dirty. There are many disadvantages. It can only be used for family bathing, and basically cannot be used for cooking and drinking. In addition, in cold regions, when encountering continuous low-temperature weather in winter, the vacuum tubes and water storage tanks are easy to freeze and crack, and the upper and lower water pipes are also easy to freeze. Basically, It can not be used in winter, even in sunny weather occasionally, because the u...

AI Technical Summary

Problems solved by technology

[0002] In the traditional vacuum tube solar water heater, the water storage tank is set on the upper part of the vacuum tube heat collector. The disadvantages in use are: the solar water storage tank uses a water level controller to control intermittent water injection, so the hot water heated by the solar energy has a long storage time and dirt. There are many disadvantages, it can only be used for family bathing, and basically cannot be used for cooking and drinking. In addition, in cold regions, when encountering continuous low temperature weather in winter, the vacuum tube and water storage tank are easy to freeze and crack, and the upper and lower water pipes are also easy to freeze. It can’t be used in winter, even in sunny weather occasionally, because the upper and lower water pipes are frozen, it can’t be used normally, resulting in cheap selling and high cost of use, and most of the functions are single and can only be showered, which is far from meeting the needs of the majority of users

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