Solar water heater or electric storage water heater based on spiral pipe heat exchange

Abstract

The invention relates to the field of water storage water heaters, in particular to a solar water heater or an electric storage water heater based on spiral tube heat exchange. It includes a hot water storage tank of a solar water heater or an electric water storage heater, a liquid injection port, a sewage outlet, a water softener, an electric heating rod, a controller, a support frame, a solenoid, a solar circulation inlet and a solar circulation outlet, and the hot water storage The tank body has a double-layer structure, including an outer shell and an inner tank. The interlayer of the double-layer structure is provided with an insulating layer. The electric heating rod is fixed inside the hot water storage tank and is electrically connected to the controller. The support frame is also arranged inside the hot water storage tank, which is a multi-layer structure, and the solenoid is fixed on each layer of the support frame by fasteners, and the solenoid is composed of multiple sets of uniformly distributed coils. The invention has no fouling, no hidden danger of corrosion, high heat exchange efficiency, realizes running water and soft water for bathing, is beneficial to improving people's water health, improves people's quality of life, and has great promotion and use value.

Description

technical field [0001] The invention relates to the field of water storage water heaters, in particular to a solar water heater or an electric storage water heater based on spiral tube heat exchange. Background technique [0002] Generally speaking, a solar water heater has two main components: a solar collector and a hot water storage tank. The solar collector is used to collect solar energy, while the hot water storage tank is similar to an electric water heater, storing heat in the form of hot water. available to users. The structure of the hot water storage tank of solar water heater and electric water heater all comprises water tank shell, insulating layer, liner, magnesium rod and electric heating device, yet, there is following defect in this hot water storage tank: one, is used to prevent liner The potential used for corroded magnesium rods is generally around -1.7. Such a high potential will cause a sudden increase in the potential of the inner tank and the heating...

AI Technical Summary

Problems solved by technology

The structure of the hot water storage tank of solar water heater and electric water heater all comprises water tank shell, insulating layer, liner, magnesium rod and electric heating device, yet, there is following defective in this hot water storage tank: one, is used to prevent liner The potential used for corroded magnesium rods is generally around -1.7. Such a high potential will cause a sudden increase in the potential of the inner tank and the heating tube to form an overprotection in the early stage, resulting in a large number of ions around the inner tank and the heating tube, which will accelerate the generation of scale. Second, the magnesium rods will gradually be exhausted within 1-2 years, and the inner liner of the water tank will gradually begin to corrode, which will eventually lead to water leakage in the water tank and burnout of the electric heating; third, the water temperature in the hot water storage tank will remain at 40-70°C for a long time Between the water, it is very easy to breed bacteria, viruses, and mixed with serious scale. Long-term use of such water for bathing can easily cause skin diseases such as dermatitis, eczema, and skin cancer.

Images