Solar temperature difference automatic cycle device of solar water heater

Abstract

The invention discloses a solar water heater and a solar temperature difference automatic cycle device, and belongs to the technical field of matching devices of the solar water heater. The solar temperature difference automatic cycle device is connected with a lower water pipe and an upper circulating pipe of a water storage tank of the solar water heater. The solar temperature difference automatic cycle device is characterized in that the solar temperature difference automatic cycle device comprises a solar heating tank, the solar heating tank is composed of a tank body made of heat insulating material and a transparent glass cover plate, a black bent metal heat collection pipe or a vacuum glass heat collection pipe is arranged in the solar heating tank, an inlet of the heat collection pipe is connected with the bottom end of the lower water pipe of the water storage tank of the solar water heater, an outlet of the heat collection pipe is communicated with upper layer water of the water storage tank of the solar water heater through the upper circulating pipe, and the device can run without being driven by a power source. The device is simple in structure, reliable in running, convenient to use and high in hot water go-out speed.

Description

Technical field: [0001] The invention discloses a solar water heater solar temperature difference automatic circulation device, which belongs to the technical field of solar water heater supporting devices. Background technique: [0002] The wide application of solar water heaters provides cheap and energy-saving bathing equipment for the majority of residents. It is also a green and environmentally friendly product actively promoted by the country. The distance from the water tank to the water outlet is long, generally more than ten meters, and the water outlet pipe still needs to pass through the wall, and it is difficult to implement effective heat insulation treatment on it, and the heat dissipation is serious. On the other hand, since the solar water storage tank relies on the convection conduction of the heat collecting tube to store heat, when the sunlight disappears at night, the heat convection slows down and stops, forming a water temperature distribution of hot to...

AI Technical Summary

Problems solved by technology

In this way, unless the outlet water is used continuously, there will always be a large amount of cold water when it is used at intervals. In this way, when the water outlet is opened, the hot water will not flow out for a long time, but the cold water will flow out first. This amount of cold water is not small in hot summer. In the cold winter, it even reaches a large amount, ranging from a few liters to as many as a dozen liters, and then hot water will flow out for bathing. big inconvenience

On the other hand, although circulating pumps are currently used to force circulation to achieve temperature difference balance between the upper and lower water layers, the power and material consumption is relatively large, and the service life is not long. The use effect is not ideal.

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