Self-folding type air source heat pump water heater

Abstract

The present invention provides a self-folding type air source heat pump water heater comprising a compressor, a condenser, a water tank, a gas-liquid separator, an evaporative condenser, a heat returning device, an evaporator, a fan, a defrosting heater, two throttles, seven temperature sensors, four controllers and two motors, the refrigeration agent tube connects the compressor, condenser, the evaporative condenser, the heat returning device, the evaporator and the throttles together to form a self-folding type air source heat pump circle, the condenser is arranged in the water tank. In the invention, heat is provided by air source, then water in the water tank is heated by emitted heat from the condenser by the refrigeration agent circle, the water tank adopts heat preservation material for heat preservation, and air pressure tube is provided on the top. The invention adopts self-folding type heat pump, which can operates at low temperature.

Description

technical field [0001] The invention belongs to the technical field of water heaters, in particular to a self-cascading air source heat pump water heater. Background technique [0002] The provision of domestic hot water throughout the year has become one of the important symbols of modern high-quality life. At present, traditional electric water heaters directly consume expensive high-quality electric energy, and the thermal efficiency will not exceed 100%, and there are safety hazards such as easy leakage. It meets the requirements of my country's energy policy and sustainable development strategy. Traditional solar water heaters mainly rely on electricity to heat hot water in cloudy, rainy, snowy weather and winter when there is insufficient sunshine, which consumes a lot of power and has poor safety. In addition, there are disadvantages such as poor balance of heating capacity and low utilization rate of the device throughout the year. The current...

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Problems solved by technology

[0002] The provision of domestic hot water throughout the year has become one of the important symbols of modern high-quality life. At present, traditional electric water heaters directly consume expensive high-quality electric energy, and the thermal efficiency will not exceed 100%, and there are safety hazards such as easy leakage. Meet the requirements of my country's energy policy and sustainable development strategy

Traditional solar water heaters mainly rely on electric heating to produce hot water in cloudy, rainy and snowy weather and in winter when there is insufficient sunshine, which consumes a lot of power and has poor safety. In addition, there are disadvantages such as poor balance of heating capacity and low utilization rate of the device throughout the year.

The current single-cycle air source heat pump water heater with a single working fluid cannot work with high efficiency or even fail to work due to the large compression ratio when the ambient air temperature is low.

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