【 Weak current College 】 heat pump type

1. air (heat pump) to air as a "source of" air-source heat pump, adopt refrigerant role energy transfer. Current product mainly household heat pump air conditioner, commercial modular heat pump air conditioner and heat pump chiller. Heat pump air conditioner has been accounted for sales of 40-50% of annual capacity to 400 million units. Heat pump chiller start since the early 1990s, in the hot summer and cold winter region has been widely applied, according to incomplete statistics, the region part of the city central air conditioner cold heat source heat pump chiller has accounted for 20-30%, and the application continues to expand and move to this trend. Second, water source heat pump groundwater as heat source, and in winter using hot pump to absorb its heat to the building, in the summer heat pump will absorb the heat to its emissions, implementation of building cooling. Although the current air-source heat pump unit in China has a very wide range of applications, but it exists in the heat pump capacity with decreasing of outdoor air temperature reduction and frosting, and water-source heat pump overcomes these shortcomings, but also high operational reliability, application there are in China in recent years gradually expanding trend. 3. ground-source heat pump is in the earth ground source heat pumps as a heat source on buildings air conditioning technology, the winter through the heat pump will land in low heat energy on building heating, cold storage and deposit for the summer; summer through the heat pump to heat transfer inside the building to the ground on building for cooling, while keeping the thermal energy storage for the winter. Due to its energy-saving, environmental protection, thermal characteristics, attracted the attention of the world. Europe and the United States and other developed countries the use of ground source heat pumps have decades of history, especially in the heating has accumulated a great deal of design, construction and operation of information and data. 4. composite heat pump in order to compensate for a single-source heat pump limitations and take full advantage of the low-energy, using a variety of composite heat pump. Such as air-air heat pump, air-water heat pump, water-water heat pump, water-air heat pump units, Sun-air-source heat pump system, air heat recovery and heat pumps, solar-thermal water source heat pump system, water triple compound heat pump, soil-water-source heat pump system, etc. 1, Sun-air-source heat pump system with Sun-air-source heat pump system is in a traditional air-source heat pump system, based on the use of solar energy, heat and newly developed system. It can be used for refrigeration, heating, domestic hot water, a natural energy, pollution-free, wide applicability, high efficiency and heat source system of the type. 2. soil-water heat pump system for soil-water heat pump (hereinafter referred to as soil heat pumps) can take advantage of the low grade of soil heat to provide hot water or space heating for buildings. United States, Germany and Sweden and other Nordic countries, there is more than one such heat pump running, soil heat pump technology is mature, and to promote the use of quickly. Currently developing soil heat pump for heating of technical specifications. 3, solar energy-solar water source heat pump water source heat pump system consists of three parts, namely, the solar thermal system, water source heat pump system and hot water supply system. The system is the building's fire water tank and water supply system as. To resolve intermittent solar energy and instability. When the water temperature is higher than 35 ° c ring road, water source heat pump system with fire water tank fractured, cooling tower, input water temperature when the loop is run in 15 ~ 35 ¡æ, solar Act Tower stop running, domestic hot water supply of heat source collection of solar energy for heating and domestic water temperature; when the loop is less than 15 ℃, the connectedness with the loop, the solar fire water reservoir water source heat pump system absorbs solar energy. If there is excess solar energy to continue heating water.

Heat pump in addition to the above four types, there are Jet heat pumps, absorption heat pump, narms capacity adjustable heat pump and CO2 as refrigerant heat pump system.