Air conditioning and the application of sanitary hot water integrated unit - heat pump water heaters, air conditioning - heat pump industry

Technology Hotline: air-conditioning Co., Ltd. Foshan resistant armor (TANG Xiao-Wei He Xianglin 0757-85116005) Abstract: The article concludes that Kelaitaike air conditioning and sanitary hot water integrated air + hot water unit can be used with very good function, when used in air conditioning systems can also take hot water, cold water in the summer can be provided separately / hot water and heating and cooling for the three functions, in the winter alone could provide hot water and air-conditioning hot water two functions, does not use air conditioning at night, when the production of domestic hot water, the unit can meet all kinds of places the user needs. This equipment will not only reduce the cost of hotel air conditioning system to increase the cooling capacity to extend the service life of existing units; can also generate a large number of low-cost domestic hot water, to Energy Effects; when the air conditioning to meet the requirements, the unit can be automatically converted mode absorbs heat from the surrounding environment to get hot water system.

Keywords: air conditioning and sanitary hot water units economic integration 1. Introduction As China's economic development, quality of life of people demand a higher demand on water has become increasingly important, the traditional central air conditioning systems of refrigeration to achieve normal function, there will be a lot of heat through the water and the air in vain into the atmosphere, has not been used. At the same time as Energy Tensions, electric water heater and oil / gas water heater as low efficiency, so rapid has been the development of heat pump water heater, but people tend to ignore its cooling function. Therefore, the Kelaitaike developed air conditioning and sanitary hot water unit can effectively be integrated heat pump water heater combined with the refrigeration and air conditioning system to provide air-conditioning cooling load, while also providing free hot water, greatly enhanced unit of actual use efficiency, save energy, it will help reduce greenhouse gas emissions.

2. Air conditioning and sanitary hot water unit describes the integration Nature of the water of the lower by the high flow, heat transfer is always from high to low. But people can pump the water from the lower elevated to high, in order to achieve the lower tops by water flow, refrigeration cycle can also transfer heat from low to high temperature. Therefore, refrigeration and air conditioning unit is essentially a heat lifting equipment, refrigeration air conditioning unit's role is to draw heat from the surrounding environment, and pass it an object to be heated (the higher the temperature of objects), air conditioning and sanitary hot one installation of refrigeration and air conditioning unit is a branch.

Figure 1, air conditioning and sanitary hot water integrated unit Appearance Kelaitaike integrated air conditioning and sanitary hot water units integrated wind cold and heat pump water heater unit features two products, using a water-cooled condenser as a hot water generator, an air-cooled condenser as a compensation device , an air conditioning evaporator as a cold water generator (also can be used as cooling water use), to provide hot water and cold air conditioning, heater and air conditioner has two functions, it has air-conditioning systems and other Hot water system No great advantage. Units can also be a separate water heater or air conditioning as used.

Figure 2, air conditioning and sanitary hot water unit system integration unit schematic Shown in Figure 2, air conditioning and sanitary hot water integrated unit, mainly by the compressor, evaporator, hot water condenser, finned heat exchanger, expansion valve of five parts, so that working fluid continuously through the completion of evaporation (heat absorbing evaporator) --- Compression --- condensation (heat release) --- cutting --- and then evaporating the thermal cycle process, in which the low temperature heat transfer medium to water, air conditioning and sanitary hot water units in the work of integration, and ordinary, like air-conditioning and heat pump units, in the evaporator to absorb the energy of low temperature media QA; part of its own energy consumption, that the compressor power consumption QB, through the refrigerant cycle system in the condenser for heat Qc, Qc = QA + QB, so air conditioning and sanitary hot water heater unit integration efficiency (QA + Qc / QB, much larger than refrigeration units QA / QB, and Heat Pump Systems Qc / QB, this can be seen, air conditioning and sanitary hot water units to provide integrated cooling and heating function, can save a lot of energy, while also reducing emissions of CO2 and other pollutants, to achieve energy saving results.

3. Project Overview Of this project is to be "Oriental Hotel Xiamen Vanguard," the invitation, the Vanguard for its Oriental Hotel in Xiamen for air conditioning and hot water system design. This hotel is a five-star, a total of ten layers, the total construction area of about 8000m2, total demand for water 40T / day, room air-conditioning total area of about 1700m2, located in Xiamen, Fujian Province. Xiamen is located in the eastern coastal areas of China, a subtropical marine monsoon climate, annual average temperature of 19.5 ~ 21 , warm and humid throughout the year like spring. Calendar year average temperature 20.0 . Employers are in line with the national energy conservation and reduce operating costs to consider, would like to use Kelaitaike's air conditioning and sanitary hot water to do integration of hotel rooms air-conditioning unit, while providing the necessary hot water room. The project put into use in 2009 and achieved good results.

4. Kelaitaike heat pump and under temperature conditions of Xiamen, the estimated unit energy efficiency:

I am Components Electronic suppliers writer, reports some information about fluorescent pendant lighting , piaa headlight bulbs.