Air source heat pump water heater with air replacement function

Abstract

The invention discloses an air source heat pump water heater with an air replacement function. The air source heat pump water heater comprises a hot water tank, a first cavity and a second cavity are formed inside the hot water tank, a water inlet tank is fixedly connected to the top end of the inner wall of the first cavity, a rotating rod penetrating to the bottom of the water inlet tank is rotationally connected to the bottom end of the inner wall of the water inlet tank, and fan blades are fixedly connected to the outer wall of the rotating rod and inside the water inlet tank. According to the air source heat pump water heater, a water flow can drive the fan blades to rotate, the rotation of the fan blades can drive the rotating rod to rotate, the rotating rod drives a rotating shaft to rotate so that a sliding block can slide inside a sliding groove, a collecting funnel can spirally slide outside a spiral air cooling pipe, then scale on the outer wall of the air cooling pipe can be scraped, heat of high-temperature refrigerant gas inside the air cooling pipe can directly make contact with cold water through the pipe wall of the air cooling pipe, and the situation that the heating rate is affected by much scale on the outer wall of the air cooling pipe is avoided.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an air source heat pump water heater with an air replacement function. Background technique [0002] With the development of social economy, people's requirements for quality of life are getting higher and higher. Taking showers as an example, gas water heaters, electric water heaters, and solar water heaters are far from meeting people's needs for comfort, energy saving, and safety. Therefore, an air source heat pump water heater based on the heat pump cycle principle has been widely used. The air source heat pump water heater is mainly composed of an evaporator, a compressor, an air cooler, and an expansion valve. Evaporation, refrigerant steam constant entropy compression, refrigerant isobaric cooling, refrigerant liquid constant entropy expansion consists of four cycle processes. When working, it uses the evaporator and fan to absorb the low-temperature heat energy in t...

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Problems solved by technology

[0003] However, the air-cooled tube inside the existing air-source heat pump water heater with air replacement function is soaked in water for a long time, and the water in the water heater is only commonly used tap water. A lot of scale prevents the outer wall of the air-cooled tube from directly contacting the tap water, which affects the heating speed of the tap water, and the long-term existence of scale will also reduce the service life of the air-cooled tube

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