Weak current College】 【air-conditioning-III common air conditioning equipment-Power By】 【China power house network.

<br> Air treatment process includes the heating, cooling, humidification, purification and noise elimination, etc, this section describes the composition of air conditioning equipment, is an important chapter management object, the focus in learning to master this portion of the content. .«Ò» ¡ .¢ spray Chamber washer is a powerful air conditioning equipment, air for heating, cooling, humidification and reducing humidity, etc. Washer nozzle, spray pipe by, retaining plate, set pool and shell, etc. Air enters the water indoor air spray nozzle to .the large amount of spray droplets, contact air and drops of water, which produces heat and moisture Exchange, reach the required temperature and humidity. Washer has the advantage that you can implement the various processes for the treatment of air; the main disadvantage is the .large water, covers an area of large, complex water system, shuiyi contaminated, the current application in the comfort of air conditioning. Projects chosen spray Chamber except horizontal, single stage, there are vertical, double-level washers. 2. surface heat exchangers .and air treatment surface heat exchanger including air-heating equipment and air cooling device. Its principle is to allow htm or refrigerant or refrigerant flow through the metal pipes lumen, and want to work with air through the metal pipe wall for heat for heating or cooling .the air. Fan-coil is a typical surface heat exchangers, heating in winter can be sent, or air-conditioning in summer and sent. <br> If the cooler surface temperature below the dew point temperature of the air, the air will be .cooled and some precipitation water condensation, in table coolers lower set set the water plate, to receive and to exclude the condensed water. <br> On certain occasions, sometimes no refrigerant, directly allow refrigerant flow surface heat exchangers, air for cooling. This .heat exchanger is refrigerant circulation system part of the evaporator, the refrigerant in the heat exchanger tube vaporization heat absorption, air in the tube has been directly cool the brain drain, which is known as direct evaporative air cooling. Window type air conditioners, split- .type air-conditioning, small air handling units are this way. <br> Surface heat exchangers, with equipment is compact, room area is small, cold source heat source can be closed loop from pollution and operations management easy. Its main disadvantage is not .easy to strictly control and regulate the humidity of the air to be processed. <br> Air heating equipment in addition to the surface air heating equipment, electric heater. Third, air humidification and wet processing equipment (1) air humidification method and handling equipment .① steam humidification, commonly steam humidification devices have steam moisturizing nozzle, "dry" steam humidifiers and electric humidifiers. ② water evaporates humidifying, commonly used water evaporates humidifying equipment with compressed-air spray equipment, electric sprayer and ultrasonic humidifier. ③ Electric humidifiers, .Tempe and electrode. 2. air handling method of wet air from the main method of wet processing are cooling down and wet, liquid moisture (absorption reduced wet) and solid moisture method. IV. air purification equipment air filter is the main air purification equipment ., according to the principle consists of a metal grid immersion oil filters, dry electrostatic filter filters and fiber. 5. air transport and distribution equipment according to the sources of air, air conditioning system can be divided into direct current, closed and recirculation systems, .etc. <br> Air conditioning system in air transport and the distribution is sent by fans, and air, air distributor (air) and air induction machine. 1. wind pipe duct used materials should be a smooth surface, light weight, easy processing .and installation, and have enough strength, rigidity, and resistance to corrosion. Common duct material has the thin steel plate, aluminum or galvanized steel sheet, and so on, there are mainly two kinds of rectangular and circular cross section. <br> To .adjust the air flow of air duct, achieve rational distribution of air in the wind channel and pipes have tuned throttle in standing. 2. air conditioning system fan mainly uses centrifugal fan, axial-flow fan. 3. air distributor air distributor for low- .speed air conditioning system, and they have radial air Distributor, axial air supply air Distributor, style, air supply air Distributor, surface-air supply air Distributor and multi-functional type air supply air Distributor, etc. 4. air induction for induction for .high-speed air conditioning system air supply equipment. <br>.