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Antifreezing method of flat plate solar water heater

A technology for solar water heaters and flat-plate heat collectors, which is applied to solar heat collectors, solar thermal energy, and solar thermal power generation. It can solve problems such as damage to heat collectors, and achieve the effects of simple structure, avoiding freezing, and low cost of antifreezing

Inactive Publication Date: 2010-09-08
铜陵市清华宝能源设备有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the prior art and provide an antifreeze method for flat solar water heaters, which can overcome the problem of damage to the heat collector due to low temperature

Method used

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  • Antifreezing method of flat plate solar water heater
  • Antifreezing method of flat plate solar water heater

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Experimental program
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Embodiment Construction

[0008] Such as figure 1 As shown, the flat-panel solar water heater includes a flat-plate heat collector 5, an insulated water tank 3, and upper and lower circulation pipes 4, 6 connecting the flat-plate heat collector 5 and the insulated water tank 3, and a circulating water pump 7 is connected in series to the lower circulation pipe 6. Pipelines 1 and 2 are respectively the cold water inlet pipe and the hot water outlet pipe of the thermal insulation water tank 3 in the figure. When the outdoor air temperature reaches below zero, the circulating water pump 7 is started, so that the water in the flat-plate heat collector can keep circulating and avoid water from freezing in the flat-plate heat collector.

[0009] The circulating water pump can be opened manually or automatically. The circulating water pump is manually opened, and the power switch of the circulating water pump is set indoors. When the automatic opening and closing method is adopted, a temperature control swi...

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Abstract

The invention relates to an antifreezing method of a flat plate solar water heater, which comprises a flat plate collector, a heat insulation water tank, and an upper circulating pipe and a lower circulating pipe which are connected to the flat plate collector and the heat insulation water tank, wherein a water circulating pump is connected onto the upper circulating pipe or the lower circulating pipe in series. The invention additionally arranges the water circulating pump in a circulating pipeline, when the outside air temperature is below zero in winter, the water circulating pump is started, so water in the flat plate collector can be kept to circularly flow, and thereby icing is avoided, not only the antifreezing effect is good, but also the structure is simple and the manufacturing cost is lower.

Description

technical field [0001] The invention relates to a flat solar water heater, in particular to a method for preventing freezing of a flat solar water heater. Background technique [0002] Solar water heater is a device that uses sunlight energy to convert heat energy to heat water from low temperature to high temperature, so as to meet the needs of hot water in people's life and production. At present, flat-panel solar water heaters are mainly composed of flat-plate heat collectors, heat-insulating water tanks, and upper and lower circulation pipes. sent to the insulated water tank. There are two types of flat-plate collectors used in flat-panel solar water heaters: glass vacuum tube collectors and metal flat panel collectors. Both glass vacuum tube collectors and metal flat panel collectors have The problem of being vulnerable to freezing damage, especially after freezing in the glass vacuum tube collector, it is very easy to break. Even for metal plate collectors, since th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/00F24J2/46F24S10/50
CPCY02E10/40Y02E10/44
Inventor 查正友
Owner 铜陵市清华宝能源设备有限责任公司