Solar water heating system provided with electric heating pipe

Abstract

The invention discloses a solar water heating system provided with an electric heating pipe. The solar water heating system comprises a pressure-bearing water tank, a circulating hot water pump and a non-vacuum heat collecting plate, wherein the upper top end of the pressure-bearing water tank is provided with a pressure-reducing valve, one side of a box body is provided with a hot water outlet, a cooling fluid outlet, a cooling fluid inlet and a cold water inlet from top to bottom; the other side of the box body is provided with the electrical heating pipe penetrating into the pressure-bearing water tank, a heat conducting pipeline is arranged in the pressure-bearing water tank and respectively connected with a cooling fluid inlet and a cooling fluid outlet which are arranged on a shell of the non-vacuum heat collecting plate through the cooling fluid outlet and the cooling fluid inlet; and the circulating hot water pump is arranged on a connecting pipeline of the cooling fluid inletof the pressure-bearing water tank and the cooling fluid outlet of the shell of the non-vacuum heat collecting plate. The solar water heating system provided with the electric heating pipe in the invention has the advantages that the thermal efficiency and solar utilization rate are improved, meanwhile, the electric heating pipe is used for heating the water in the pressure-bearing water tank, the problem that the solar energy is insufficient so as not to heat water temperature can be solved, therefore people can use the system more conveniently and the requirements of people are met.

Description

technical field [0001] The invention relates to a solar water heating system, in particular to a solar water heating system with electric heat pipes. Background technique [0002] When the existing solar water heater is in use, the cold water is first put into the water storage tank and then poured into a plurality of parallel solar heat collecting tubes. The specific gravity circulates to make the whole tank of water warm up for people to use. Since the heat energy of solar radiation heats up the whole tank of water through the slow heating method of the solar collector tube, there are the following defects: 1. Slow heating speed and low thermal efficiency; The remaining water in the heat pipe cannot be discharged and used, and the utilization rate is low; 3. The solar energy utilization efficiency is low; 4. The vacuum heat collecting pipe is easy to accumulate sundries and produce scale, hot water cannot be eaten, and the interior cannot be cleaned. [0003] In addition...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a solar water heating system with electric heating pipes, aiming to solve the problems of low thermal efficiency, easy generation of scale, and single heating method of existing solar water heaters, which cannot meet the needs of people's domestic hot water.

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