Centrifugal Water Cooled Chillers
Description
A centrifugal chiller unit is a large capacity commercial water cooled system that consists of multiple components such as a centrifugal refrigeration compressor, evaporator, condenser, main motor, extraction and recovery device, lubrication system, control cabinet, and starting cabinet.
The chiller unit can be 2 types according to the cooling method: air-cooled and water-cooled, and can be 2 types according to the structural form: screw type and centrifugal type. The main component that distinguishes centrifugal chillers from screw chillers is the centrifugal compressor.
​Features
Centrifugal chillers are large capacity water chillers with the following main advantages:
1. The single unit has a large cooling capacity, higher cooling efficiency and a compact structure, making the body lighter under the same cooling capacity;
2. Good performance with a cooling capacity of 300-3000KW;
3. The impeller rotates smoothly, with low vibration and low noise;
4. Flexible installation and convenient maintenance;
5. Convenient adjustment, capable of achieving stepless adjustment economically over a large range of cooling capacity;
6. No vulnerable parts such as air valves, packing, piston rings, etc., making the operation more reliable.
​Structure and Working Principle
The centrifugal chiller is composed of a motor, a centrifugal compressor, a condenser, an evaporator, etc. The centrifugal compressor has a fast speed, and the high-speed rotation drives the air to increase the temperature and pressure, generating high-temperature and high-pressure steam. Then it enters the condenser, releases heat, and forms a high-temperature and high-pressure liquid. Then it passes through the throttling device and flows to the evaporator. It becomes a low-temperature and low-pressure liquid through decompression and heat absorption, and returns to the centrifugal compressor for cyclic compression.