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.