Automatic dirt removing type air energy water heater

Abstract

The invention discloses an automatic dirt removing type air energy water heater. The automatic dirt removing type air energy water heater comprises an evaporator, a compressor, a water tank and a heat exchange pipe set. The heat exchange pipe set comprises a plurality of heat exchange pipes which are arranged along the inner wall of the water tank, are the same in diameter and are vertically arranged. Every two adjacent heat exchange pipes are communicated through a connecting pipe. The outer wall of any heat exchange pipe is sleeved with a dirt prevention pipe. The upper ends and the lower ends of the heat exchange pipes are connected with heat exchange pipe bearings respectively. The dirt prevention pipes can rotate relative to the heat exchange pipes. The water tank is arranged outside the heat exchange pipe set in a covering manner. A plurality of annular grooves containing annular fins are formed in the inner wall of the water tank from top to bottom, and the annular grooves and the opposite annular fins are matched in grain and depth. An insulating layer is arranged at the outer portion of the water tank. The insulating layer comprises glass cellucotton, insulating cotton and a foam plate arranged from interior to exterior in sequence. The designed automatic dirt removing type air energy water heater is high in heating speed, the heat exchange area is increased, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to an air energy water heater, in particular to an automatic descaling type air energy water heater. Background technique [0002] An air source water heater, also known as an "air source heat pump water heater", is a device that uses the working principle of a heat pump to absorb heat from the air to produce hot water. The air-energy water heater transfers the heat in the environment to the water by allowing the refrigerant to continuously complete the thermodynamic cycle of evaporation, compression, condensation, throttling, and re-evaporation. The power consumption of air-energy water heaters is usually only a quarter of that of electric water heaters, and it does not need to rely on sunlight for heating like solar water heaters. Since the work of air-energy water heaters is realized through heat exchange with refrigerants, electric heating elements are not required. In contact with water, there will be no potential safety haz...

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Problems solved by technology

[0003] The air energy water heater transfers the heat of the heat medium to the water through the heat exchange tube. One of the existing heat exchange tubes is an external heat exchange tube, that is, the heat exchange tube is wound around the outer circumference of the water tank to heat the water in the water tank. One heating method is insufficient for heat exchange, the heating speed of the water in the middle of the water tank is slow, and the heat loss of the external heat exchange tube is large, and the energy consumption is also high; The tube is built into the water tank to heat the water. The double-layer coil greatly increases the heat transfer area, with high heat transfer efficiency and low energy consumption. The structure of the double-layer coil is not easy to clean the scale on the outside of the heat exchange tube. As the scale on the outer wall of the heat exchange tube increases, the heat exchange effect of the heat exchange tube becomes worse and worse, and the energy consumption gradually increases.

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