Basic knowledge of central aircon system
Basic knowledge of
central aircon system
一、What is air conditioning
Air conditioning is air conditioning. It is a technology that maintains a good thermal environment in the room. The term "thermal environment" as used herein refers to the temperature, humidity, air flow rate, cleanliness, freshness etc.
四、 What is a cooling tower?
Ø A cooling tower is a kind of heat-dissipating equipment that uses water and air contact to dissipate waste heat from industrial or refrigeration air conditioners by evaporation.
Ø Principle: A cooling device in which circulating cooling water is sprayed in direct contact with air to dissipate the carried heat to the atmosphere by evaporation and convection.
Type of Cooling Tower：
1、 According to ventilation, there are natural ventilation cooling towers and mechanical ventilation cooling towers.
2、 The wet cooling tower and the dry cooling tower are divided according to the contact mode of hot water and air.
3、 In the flow direction of hot water and air, there are a counter flow cooling tower, a cross flow (AC) type cooling tower, and a mixed flow cooling tower.
4、Round cooling tower, square cooling tower, rectangular cooling tower。
5、 According to the cooling temperature, there are standard cooling towers, medium-temperature cooling towers, and high-temperature cooling towers.
6、 According to the noise level, it is divided into ordinary cooling tower, low noise cooling tower, ultra low noise cooling tower and ultra quiet cooling tower.
7、 According to the purpose, there are special cooling towers for plastic machines, special cooling towers for generators, special cooling towers for medium frequency furnaces, central air conditioning cooling towers, and power plant cooling towers.
What is an open tower and what is a closed tower
u a cooling tower that directly contacts circulating water
with air. It is called an open cooling tower.
The circulating water runs in a closed water circulation road, and the circulating water does not directly contact with the air. It is called a closed cooling tower 
What is a cross flow tower and what is a counter current tower?
lcross flow tower
During the process of heat and mass exchange between air
and water in the tower,
When air flows in a cross direction with water, this is called
a cross-flow cooling tower, or cross-flow type.
Counter flow cooling tower
In the process of heat and mass exchange between air and water
in the tower, when the air flows in the opposite direction to the
water, this is called a counter flow cooling tower, or it is called
a reverse flow type.
五、What is the end
•The terminal equipment of the central air conditioning system includes: fan coil, air handling unit, thermostat, valve, tuyere etc. • •
•Sinro Air Conditioning mainly produces fan coils, air handling units ,Cooling tower,and HAVC products.
Fan coil, air handling unit
•Fan coil is the ideal end product of central air conditioning. It consists of heat exchanger, water pipe, filter, fan, water tray, exhaust valve, bracket, etc. Its working principle is to continuously recirculate the air in the room. The air is passed through a cold water (hot water) coil and cooled (heated) to maintain a constant room temperature. Usually, fresh air is sent to the room through the new air blower unit to meet the needs of the new air volume in the air-conditioned room.
•The Air Handling Unit (AHU) is a centralized air handling system that originates from a centralized hot air heating and ventilation system that distributes heated air through a duct. The basic centralized system is an all-air single-zone system that typically includes fans, heaters, coolers, and filter components.
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