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Dry-burning prevention solar water heater

A solar water heater and heat collector technology, applied in the field of solar energy, can solve the problems of low strength, fluctuation of outlet water temperature, and poor comfort, so as to improve high heat resistance and high temperature tensile strength, avoid rapid thermal expansion, and increase service life Effect

Inactive Publication Date: 2014-02-05
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summer, due to the long time and high intensity of sunlight, the water temperature in the water tank is too high, and the hot water cannot be used directly. It is necessary to rely on the hot water pipe to connect with the tap water pipe, and the water temperature is adjusted by the mixing valve, so that the temperature of the outlet water fluctuates greatly. It often needs to be adjusted repeatedly during use, which is not only troublesome, but also greatly reduces the comfort of bathing
In winter, especially in the north, due to the short light time and low intensity, the hot water in the water tank often cannot reach the temperature required by people. At this time, the heater in the water tank works to heat the hot water to the required temperature first. Therefore, it is very inconvenient for people to use it in winter, and it is easy to catch a cold. Not only is the comfort of bathing poor, but it also causes a waste of water resources.

Method used

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Embodiment Construction

[0045] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] The following first introduces the relevant parts of the collector.

[0047] First, please refer to figure 1 , A solar water heater, including a heat collector 27, the water inlet of the heat collector 27 is connected to an external water source through a pipe, the water heater also includes a temperature sensor, a light sensor, a flow meter, a flow controller and a central controller; the temperature sensor There are two, which are respectively set at the water inlet position 29 and the water outlet position 28 of the heat collector to measure the temperature of the water at the water inlet and the water outlet of the heat collector; the light sensor is set on the heat absorption of the heat collector unit( figure 1 Not shown), used to detect the intensity of sunlight; the flowmeter is set on the connecting pipe between the water inlet an...

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Abstract

The invention provides a dry-burning prevention solar water heater which comprises a heat collector and a water tank connected with the heat collector, wherein the water tank comprises a liner with a multilayer structure; an electric heater is arranged in the liner. The dry-burning prevention solar water heater further comprises an electric heater dry-burning prevention device; if the electric heater is not immersed in water, the heating of the electric heater is automatically stopped, so that the dry burning of the electric heater can be prevented; after a water level rises to immerse the electric heater, the electric heater starts to execute heating again. The heating of the electric heater can be controlled according to the water level and prevent the dry burning of the electric heater.

Description

Technical field [0001] The invention belongs to the field of solar energy, and particularly relates to a solar water heater capable of preventing dry burning. Background technique [0002] As a clean and renewable energy, solar energy has the advantages of no environmental pollution and no safety hazards unmatched by other energy sources. With the increasing shortage of electricity and gas throughout the country, solar water heaters are becoming more and more popular. Traditional solar water heaters install heat collection tubes and water tanks on the roof of the building. The heat collection tubes absorb the heat of the sun to raise the water temperature, and the hot water is stored in the water tank. When needed, the hot water is introduced from the outdoor hot water pipe. Indoors, for people to use. In summer, due to the long time and high intensity of sunlight, the water temperature in the water tank is too high and the hot water cannot be used directly. The hot water pipe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/00F24J2/40F24J2/46
CPCY02E10/40
Inventor 王兴郝身刚刘金江程宁张丽
Owner NANYANG NORMAL UNIV
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