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Air Source Heat Pump Water Heater Structure Oct 24, 2017

Air source heat pump water heater is divided into three major systems:

1, refrigeration system: mainly composed of the following four components: compressor, expansion valve, air side heat exchanger (evaporator) and water side heat exchanger (condenser). Supplemented by four-way valve, gas-liquid separator, reservoir, filters and so on.

1.1 Compressor: is the heart of the heat pump hot water unit, the core components. It is like a pump, plays a role in carrying energy, it works in the process of consuming part of the energy. The current air source heat pump commercial units using the United States Copeland compression, Daikin compressors, Hitachi compressors, air source heat pump machine used in the compressor are Panasonic compressors, Hitachi compressors, Meizhi compressor.

1.2 expansion valve: play a regulatory medium in the system of pressure and flow effects, throttle step by step. Expansion valve with capillary, electronic expansion valve, thermal expansion valve. The current air source heat pump commercial unit using the expansion valve with electronic expansion valve, thermal expansion valve, air source heat pump household use of the expansion valve mainly capillary.

1.3 Air side heat exchanger: the media and air exchange heat to establish a platform, the media in the air side of the heat exchanger to absorb the heat in the air. Current air source heat pump commercial unit used

1.4 water side heat exchanger: the media and water exchange heat to establish a platform, the media in the water side of the heat exchanger cooling water to the water heat, the water heating. At present, the water side heat pump commercial unit uses the water side heat exchanger has the casing heat exchanger and the plate type heat exchanger, the current air source heat pump commercial unit uses the water side heat exchanger mainly has the coil heat exchanger.

2, ventilation system: mainly fan, fan. The ventilation system is mainly to let the new (relatively high temperature) air through the air side of the heat exchanger, heat exchange with the media.

3, electronic control system: the main circuit boards, control panels, compression capacitors, fan capacitors, data lines, all kinds of temperature sensors. So that the water heater intelligent operation, detection failure, protection and other units.

Air source heat pump water heater works:

The most common use of heat pumps is the steam compression heat pump. Its working principle is: the refrigerant evaporates in the evaporator after evaporation, evaporated into the superheated steam into the compressor, in the compressor by the adiabatic compression into high temperature and high pressure gas, condensed by the condenser constant pressure for the low temperature and high pressure liquid, liquid The refrigerant is throttled by a throttling device to a low temperature and low pressure liquid, and then enters the evaporator constant pressure heat absorption, followed by reciprocating circulation. Air source heat pump water heater is the heat of the air to the water will be heated to the water.

What are the advantages of air source heat pump water heaters compared to fuel / gas boilers?

1, safety: air source heat pump water heater heating, the water tank does not exist in the electric heating, water and electricity safety separation, there is no leakage electric shock safety hazards, completely belong to safety products; fuel / gas boiler heating, the use of fuel / gas, there is leakage Poisoning, explosion and other security risks.

2, energy-saving: air source heat pump water heater energy efficiency up to 400% -600%, fuel / gas boiler efficiency is only 80-90%, air source heat pump water heater than oil can save more than 50% operating costs.

3, environmental protection: air source heat pump water heater heating, the use of fuel for the clean air source, are environmentally friendly products; boiler heating using fuel / gas, pollution of air emissions.

4, installation: air source heat pump water heater installation location flexible, can be installed in the roof, basement, ground, etc .; boiler installation, the need for boiler room.

5, the use of: air source heat pump water heater with automatic control, without manual care, operation, etc., convenient; boiler need special care, increase the wages.

6, the use of approval: air source heat pump water heaters are safe and environmentally friendly products, the installation does not require the use of EPA approval, and the boiler needs EPA approval to use.

7, the first investment and payback period: the first investment in air source heat pump water heater (engineering) than the boiler, but the air source heat pump water heater (engineering) investment recovery period is short, relatively investment boilers, more than a year to recover costs.