Dual-heat-storage intelligent water heating system based on heat storage type solar heat collectors

Abstract

An embodiment of the invention provides a dual-heat-storage intelligent water heating system based on heat storage type solar heat collectors. The dual-heat-storage intelligent water heating system based on the heat storage type solar heat collectors comprises the heat storage type solar heat collectors, an off-peak electricity heat storage water tank, an auxiliary heat source, a hot water usage terminal, a circulating water pump, a controllable electric three-way valve, a first controllable solenoid valve and a second controllable solenoid valve. Each heat storage type solar heat collector comprises a water tank. The e embodiment of the invention provides the dual-heat-storage intelligent water heating system based on the heat storage type solar heat collectors, the heat storage type solar heat collectors can simultaneously accomplish the whole process of heat collection, heat transfer, heat exchange and heat storage, the cycle between the heat collectors and circulating media and thecycle between the circulating media and the heat storage water tank are avoided, the heat exchange heat resistance and the heat dissipation loss are reduced, the heat collection temperature and the heat storage temperature are improved, the heat collection area is reduced, the system cost is reduced, and the system is simple in structure and easy to achieve.

Description

technical field [0001] The invention relates to the field of solar water heating systems, in particular to a dual heat storage intelligent water heating system based on a heat storage type solar heat collector. Background technique [0002] The solar water heating system uses solar collectors to collect solar heat, fully converts the sun's light energy into heat energy under the irradiation of sunlight, and transfers the heat collected by the system to the In the large-scale water storage and heat preservation water tank, the water in the water storage and heat preservation water tank is heated to become a relatively stable quantitative energy device after matching the equivalent energy such as electricity, gas, and fuel oil. The system can not only provide hot water for production and domestic use, but also serve as a cold and heat source for other forms of solar energy utilization. It is an application product with the most economic value, the most mature technology, and c...

AI Technical Summary

Problems solved by technology

[0003] However, solar energy also has the disadvantages of intermittency and low energy density, so there are corresponding disadvantages when using solar thermal systems: First, solar thermal systems are limited by site conditions, and the heat collection area is insufficient to achieve the required heat output; In continuous cloudy, rainy and snowy days, the heat collected by the sun is insufficient. Therefore, for these two problems, other energy sources are needed to supplement the heat of the system, and supplementing in the form of low-peak electricity can maximize the use of solar energy and reduce electricity costs.

[0006] 1) At least 2 pumps and three cycles are required, the system is complicated, the energy loss is large, and the cost is high;

[0007] 2) At least 2 water tanks are required, the floor area is large, and the heat exchange energy loss between the water tanks is large;

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