Self-circulation pipeline system of multifunctional solar water heater

A solar water heater and solar collector technology, applied in the field of solar energy, can solve the problems of easy freezing of upper and lower water pipes, can only be used for family bathing, single function, etc., and achieve the effect of ensuring the quality of drinking water

CN103206736BActive Publication Date: 2015-06-17杨德和
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-06-17

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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.
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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...

Examples

Embodiment

[0024] The water circulation heat exchange process of domestic hot water system, heating water circulation system and solar heat collection system is as follows:

[0025] Production of heating and hot water in winter: In winter, the loop control valve connected in series between the circulating hot water outlet pipe at the bottom of the outer water tank of the thermopump and the circulating warm water inlet pipe at the lower end of the solar collector is closed, the circulating pump of the heating water circulation system is turned on, and the solar energy The heat collection system and the heating water circulation system form a large circulation system. The solar heat absorbed by the solar collector first heats the circulating water in the solar heat collection system and the heating water circulation system, and the indoor environment obtains the heat of the solar energy through the heat sink. Temporary use under weather conditions;

[0026] Production of domestic hot water...