The performance characteristics of air-cooled heat pump and water pump and compare what are the different?

Air-cooled heat pump and water pump is usually used in large units, chillers, with the wind ( Air) To walk in tropical and absorb heat, to generate the cold water and hot water. Water chilling unit, cooling water to take away heat, to generate the cold water. The choice of a unit, application to the design of the central air conditioning system of large buildings, does not have a fixed mode of special, need to combine local objective conditions to be considered at the time, no matter adopt what kind of equipment form must architecture, structure, and other related electrical and mechanical professional actively cooperate with. As a professional design, the main is combined with the actual situation of project, comprehensive consideration of various factors, on the premise of ensuring technology is feasible, safe and reliable, to use and economy principle, implement the willingness of investors. Chillers with water-cooled unit, each has its own characteristics, according to the different using environment, space, and the size of the refrigerating capacity of the unit, and the different city and region to carry out comprehensive consideration to choose. The building, the greater the preferred water chilling unit, the smaller buildings, chillers are selected. Air cooling machine is mainly used for the dry region, the advantage is to save room area, convenient installation, relative to the water chilling unit and than, its operating conditions is not influenced by environmental temperature stability, and water chilling unit is mainly used in areas where the water sources are relatively abundant, its operation is stable, but due to the cooling water anti-freezing problem, winter is more troublesome, due to the simple use of cooling tower, the north cannot heating in winter, should choose water or ground source heat water pump system, refrigeration and heating effect is good, is the current selection, air cooling machine in the north has the certain difficulty, the use of heat pump heating need electric auxiliary heating water device, to perfect. Second, the characteristics of air-cooled heat pump units 1, save water resources, environmental protection, high utilization rate of equipment. 2, installed in the outdoor, such as roof, balcony, do not need to build dedicated machine room, do not take effective construction area, save construction investment. Cooling in summer and heating in winter, eliminating the boiler room, good for engineering construction and landscape design. Out the cooling water system and cooling tower, cooling water pump, pipe network and water treatment equipment, save this part of the investment and operation cost. 3, the winter heating energy saving, heat pump heating than electricity directly to the province about two-thirds of the heating power. Form a variety of heat pump, heat pump with low noise, impact on the environment is relatively small. 4, safety protection and automatic control installed within a body at the same time, reliable operation, installation, and easy to use. The longer the better operation, low maintenance cost. Third, the characteristics of the water cooled heat pump units 1, wide application range, low cost. Mature technology, but also the widely used air conditioning systems. General set 2, cold and heat sources, convenient operation and maintenance management. High summer cooling efficiency is higher, can effect comparing. 3, the initial investment is relatively low, no heat preservation pipe system greatly reduce the material cost. While the number of chillers is below. Demand for housing is not high, only need to meet the requirements of general ventilation. The service life of the unit 4, significantly higher than air cooling units. A relatively small volume, covers an area of less. Four chillers, economic and technical comparison of initial investment to be a bit higher than the initial investment of water-cooled unit, the unit refrigeration power consumption is slightly higher than the water-cooling chiller. But comprehensive annual fee and water cooled chillers unit flat or slightly lower. Water chiller in the longer run, good for the chillers, air-cooled units and water chilling unit compared to initial investment payback period is shorter. How much water chilling unit cooling water filling water is one of the important factors affecting the cost. Strengthen the maintenance and management, reduce the water consumption of important aspect is to reduce the cost of water chilling unit. Is suitable for the chillers in regional water supply system of medium and small; The annual operating hours, the better the longer the refrigeration system USES air-cooled refrigeration unit; Air-cooled refrigeration unit comprehensive annual fee is lower than the water cooling system, but if water system management in proper form, fill water control below 3%, air-cooled refrigeration unit is water-cooled refrigerating unit is to increase the initial investment is very difficult to recycle.
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