Double-pressure-bearing solar water heater

Abstract

The invention discloses an integral double-pressure-bearing solar water heater which comprises a support, a water tank shell, a thermal insulating layer, a heat exchange jacket, a heat-conducting interfacial packing layer and an inner heat storage container, wherein a short heat-exchange working medium circulating tube used for connecting a pressure-bearing solar vacuum heat collecting tube is arranged on the heat exchange jacket, the heat exchange jacket is provided with a heat-exchange working medium filling port and a heat-exchange working medium overflow port, and the heat-exchange working medium circulating tube communicates the pressure-bearing solar vacuum heat collecting tube and an cavity of the heat exchange jacket. A cold water inlet tube and a hot water outlet tube are connected on the inner heat storage container. The heat exchange jacket is tightly attached too the inner heat storage container through the heat-conducting interfacial packing layer. Heat collection and heat storage of the integral double-pressure-bearing solar water heater provided by the invention respectively and independently operate in a closed type, use water is used by bearing pressure, the use water can not be polluted due to the seepage of a heat exchange working medium, the use water is sanitary, and the system is safe and reliable. The entire system has reasonable structural design, low cost, high cost performance and long service life.

Description

technical field [0001] The invention relates to a double pressure water tank and an integrated double pressure solar water heater utilizing the double pressure water tanks, belonging to the field of solar thermal utilization. Background technique [0002] At present, there are mainly two types of solar water heaters on the market according to the way of water use, one is a non-pressurized solar water heater; the other is a pressurized solar water heater. Due to its low price, the non-pressurized solar water heater has been greatly developed in the early stage, but because it adopts the open operation principle, it will lead to disadvantages such as easy pollution of water and uncomfortable bathing. Therefore, in recent years, the integrated pressurized solar water heater Water heaters have developed rapidly. The existing integrated pressurized solar water heater can be divided into two types according to the principle of heat collection, one is a metal heat pipe type solar ...

AI Technical Summary

Problems solved by technology

[0003] Based on the current situation, the integrated double-pressure solar water heater proposed uses a pressure-bearing water tank with an external independent heat-exchanging jacket. Solar water heaters are easy to corrode, easy to scale and high cost

At the same time, it also solves the problem that there is only one layer of metal wall between the heat exchange working medium and the water used in the double-changing jacket solar water heater. Once corrosion and perforation occur, the problem of poisonous heat exchange working medium polluting the water used

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