Flat Integral Solar Water Heater

Abstract

The invention discloses a flat integral solar water heater. The water heater comprises a flat plate box covered with a cover plate. There is a bottom plate under the box, and a frame around the periphery. There is an insulation layer between the box, the bottom plate, and the frame. The first threaded pipe mouth is a water inlet, the threaded pipe mouth arranged along the diagonal position of the water inlet is a hot water outlet, and the other two threaded pipe mouths are respectively provided with a temperature measuring probe and an electric heating pipe. The invention integrates several functions of heat absorption, heat conversion and hot water storage; it simplifies the heat exchange process, reduces system materials, and greatly improves the cost performance of the solar water heating system. A solid foundation has been laid.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a flat panel integral solar water heater. Background technique [0002] With the implementation of the "Renewable Energy Law", the utilization of renewable energy in my country has developed rapidly. Flat-plate solar collectors are developing rapidly in China due to their high heat collection efficiency, pressure-bearing split installation, beautiful appearance and integration with buildings (more than 90% of foreign countries are flat-plate type). However, the current flat-plate collectors still have some shortcomings such as poor antifreeze, secondary heat exchange, complex system, and high cost, especially in terms of engineering cost and operation and maintenance, they lack market competitiveness. [0003] At present, the structure of flat plate collectors at home and abroad is as follows: figure 1 Shown: It is composed of frame assembly 1, sealing strip 2, transparent cover 3, press...

AI Technical Summary

Problems solved by technology

The whole system is complex and cumbersome. The first circuit is filled with working medium (mainly antifreeze); the heat collected by the flat plate collector 35 passes through the medium circulation and the heat exchange coil 34 indirectly heats the water in the water tank.

The disadvantages of this flat plate heat collection system are reflected in three aspects. First, the heat collector adopts laser welding process equipment, which is expensive and uses a lot of copper metal, and the cost is high; second, the indirect heat exchange system is complicated and low in efficiency; third , poor antifreeze performance, antifreeze medium must be used, but the working medium is volatile and must be replenished frequently, and the operation and maintenance costs are high

[0005] At present, the most concise solar water heating system integrated machine includes vacuum tube integrated machine and flat plate integrated machine. It is more beautiful, can operate under pressure, and its safety and integration with the building have been greatly improved. However, its water tank is prominent, occupies a large area, and is not perfect. In addition, the cost is high, which seriously affects the popularization of the market. to promote

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