Centrifugal compressor unit The centrifuge uses centrifugal force to separate liquid solid particles The machinery of each component in the mixture of liquid and liquid. The centrifugal refrigeration compressor is a rotary speed compressor, which is most suitable for compressing large-capacity gas or steam. The centrifugal chiller uses electricity as the power source. The Freon refrigerant evaporates in the evaporator and absorbs the heat of the refrigerant water for cooling. The wet steam of the Freon after the evaporation and absorption is compressed into high temperature and high pressure gas by the compressor, which is then cooled by the water-cooled condenser. After condensing, it becomes a liquid, and the Freon liquid is throttled by an expansion valve and enters the evaporator for recirculation, thereby preparing 7℃-12℃ chilled water for users.
Reliable impeller The impeller material is high-strength aluminum alloy, milled and manufactured, with high strength and strong corrosion resistance; it has passed a series of rigorous tests such as blade shape detection, dynamic balance, and over-speed, so it is efficient and reliable. The impeller material is high-strength aluminum alloy, milled and manufactured, with high strength and strong corrosion resistance; it has passed a series of rigorous tests such as blade shape detection, dynamic balance, and over-speed, which is efficient and reliable. High efficiency and energy saving High efficiency ternary impeller The new high-efficiency impeller designed by the ternary flow principle is composed of backward-curved long and short blades to ensure the efficiency of the unit at full load and partial load; The adjustable diffuser structure adjusts the air flow channel area, which can best improve the partial load performance of the unit. System flow chart Compression principle of centrifugal compressor The gas to be compressed is introduced into the impeller through the suction chamber; the gas sucked in by the impeller follows the impeller to rotate at high speed under the action of the impeller blades, and the gas is led out after its pressure and speed are increased due to the centrifugal force and the diffused flow in the impeller The diffuser is introduced around the impeller; after the gas flows out of the impeller, it has a higher flow rate. In order to fully convert this part of the velocity energy, a flow section is set behind the impeller to gradually expand, and the velocity energy is converted into pressure energy to improve the gas Pressure; the diffused gas is collected in the volute and then led out of the machine. The above process is the compression principle of the centrifuge. The According to the type of compressor: open type: this form is to arrange the compressor, the speed increaser and the motor separately, or the compressor and the speed increaser together, and the motor is arranged separately, and they are connected by a coupling . This type has leakage problems due to shaft extension. Semi-enclosed type: This form encloses the compressor, speed increaser and motor in the same shell, but the parts are connected by screws and can be disassembled. This form requires the motor to be resistant to fluorine. According to the compressor level: single-stage compression: only one-stage impeller compression method. Two-stage compression: a compression method with two-stage impeller. Multi-level compression: refers to the compression method of three levels and above The centrifugal chiller used for central air conditioning is mainly composed of the following parts: 1. Compressor 2. Main motor 3. Evaporator (full liquid horizontal shell and tube type) 4. Condenser (water-cooled full liquid horizontal shell and tube type) 5. Throttle device 6. Compressor inlet energy adjustment mechanism 7. Pumping recovery device 8. Lubricating oil system 9. Safety protection device 10. Oil recovery device and microcomputer control system Advantages of centrifuge: The blades rotate at a high speed, and the speed changes produce pressure. It is a speed compressor. Few moving parts, low failure rate and high reliability. The comprehensive energy efficiency ratio is high, generally above 6.0. 30% load operation can realize stepless adjustment, and the energy saving effect is more obvious. The cooling capacity attenuation of the centrifugal chiller is mainly caused by the water quality: the condenser and evaporator of the unit are both heat exchangers. If the heat transfer tube wall is fouled, the cooling capacity of the unit decreases, but the condenser and evaporator are in the design process of the manufacturer It has been considered to be convenient for cleaning. With the long use time, the cooling capacity has little attenuation, and almost no. Electric refrigeration has a history of more than 100 years. The technology and manufacturing process are mature, and it is easy to use and maintain. It has become a popular product for many users. The centrifugal compressor has an average life span of 75,000 hours. The unit has been filled with freon and oil, and the user can use it with water and electricity on site. The unit does not need overhaul, only the water system needs to be cleaned, and the maintenance cost is low.
