【文章內(nèi)容簡介】 ally include the sections: (1) Part of the new wind Airconditioning system during operation to capture part of the outdoor fresh air (ie fresh air), this part of the fresh air to meet indoor staff required minimum fresh air volume, so air conditioning system of fresh air taken into the amount determined by airconditioning system service uses and hygiene requirements. The new wind into the general population in the surrounding areas from pollution. These new wind into port and air conditioning systems and new air ducts installation of new wind Dust (new style air filter), new air heaters (also known as airconditioning system in a heater) came together to form a new air system air conditioning system. (2) Part of air purification Airconditioning system according to their different uses, purification of air in different ways. Therefore, in the air purification system has set an initial effect of a simple air filter cleaning system, but also set an initial effective air filter and air filter efficiency level of the general purification system, in addition to setting an initial efficiency air filters, one in the efficiency of air filters and a HEPA filter for three highpurification system filter. (3) Part of the air heat, wet Air heating, humidification and cooling, dehumidification, will bine the process, known as the air conditioning system, heat, wet part. In the air to heat, wet processing, surfaceair heat exchanger (heat exchanger within the surface by hot water or steam, known as surface air heaters, known as soft air heater). Setting a new air intakes in the system, a return air as the air before the air heater in a heater。 set before cooling dehumidification air heater, known as the secondary air heater。 set in airconditioned room before sending outlet air heater, known as the three air heaters. Three airconditioned room heater to regulate the main role of the temperature, the thermal coal used for the hot water or electric heating. The surface heat exchanger in cold water or a refrigerant through the lowtemperature watercooled surface, called the direct evaporative cooler or cooler surface, but also by spraying cold water or hot l water washer, There are also direct water spray of steam approach to achieve the air hot and wet processing. (4) The section of air transportation and distribution and control Fans and air conditioning systems to send, return air pipe as part of air transport. Duct in the regulation of air valve, butterfly valve, damper, boot valve and air outlet such as points, control section. Airconditioning system according to the different air resistance, set the number of fans are different, if the air conditioning system for a wind turbine set, the fans not only from the air role, the role was underway as a single return air fan system。 if the air conditioning system set two fans, one for the blower, another fan for the back, then called the twofan system. (5). cold and heat source of air conditioning system, Air conditioning systems used in the cold cold source is generally divided into natural and artificial sources of cold source. Natural cooling source generally refers to ground water from deep wells, artificial cold source generally refers to the use of artificial refrigeration means available, which includes the vapor pression refrigeration, absorption refrigeration, and steam jet refrigeration, and other means. Modern largescale buildings are often used for central air conditioning system, this form of structure diagram shown in Figure 1. Its working principle is when the ambient temperature is too high, the air conditioning system, through recirculated to the indoor heat away so that the indoor temperature is maintained at a certain value. When the circulation of air through the fan coil, the hightemperature air through the cooling coil of aluminum metal prior to heat exchange coil of aluminum absorbs heat from the air, the air temperature decreases, and then the cycle of freezing air given away after Indoor. Chilled water cooling coil provided by the cooling machine, cooler by the pressor, condenser and evaporator ponent. Compressor to press refrigerant, refrigerant pressed into the condenser, cooled by cooling water into the liquid, precipitation heat from the cooling water, and drained the cooling tower air. Liquid refrigerant from the condenser into the evaporator, evaporation, so that chilled water cooling, and then into the watercooled chilled water fan coil heat absorption in the air, again and again, cycle continuously, the indoor heat away. When the ambient temperature is too low, l the need for hot water into the fan coil, and the abovementioned principles, as given away heated indoor air. After air cooling, water analysis of the air relative humidity decreased, bee dry, so need to increase humidity, it is necessary to install humidifiers, water spray or spray to steam air humidification treatment, the use of such wet air to supplement inadequate amount of indoor water vapor. 3. central airconditioning control system The central airconditioning control the content and charged with parameters Central air conditioning system of air heating, cooling, humidification, dehumidification, air purification, air volume control devices, and cold air conditioning, heat and other equipment position. The capacity of these devices is the design capacity, but in the daily running of the actual load in most of the time is part of the load will not reach design capacity. Therefore, in order to fort and energy efficiency, the equipment must be realtime control, so the actual output patible with the actual load. At present, its volume control has achieved varying degrees of automation, their content has bee more abundant. Charged with the main parameters