Screw type water-cooled chiller unit with four units

NegotiableUpdate on 03/02

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Overview

Product Name: Screw type water-cooled chiller with four units Product Overview: The "Shanglei" series water-cooled screw chiller is a product designed based on the technology of similar products at home and abroad. This series of chiller has mature technology and simple design, using a 5:6 asymmetric twin-screw compressor. Through more than 20 years of practice, it has been proven that the product has stable performance, energy saving, long service life, and extremely low failure rate. This device can provide a cold water source of 5 ℃~20 ℃, suitable for various places such as chemical, metallurgical, electronic, food and other industries in the production process.

Product Details

a. The refrigeration system circuit and unit design have multiple heads to choose from,1~4A compressor head, the system does not interfere with each other.

b. Each refrigeration system compressor starts sequentially, with a single compressor operating at low loads（25%）The star delta voltage reduction startup reduces the starting current to minimize the impact on the power grid.

c. Application of Refrigeration Compressors

◇ brand5:6Asymmetric twin-screw compressor, which is the current screw compressor, and its moving parts are reciprocating compressors1/10Vibration for reciprocating compressors1/5No need to fix the foundation. Radial and axial co use11Only high-precision GermanyFAGAnd SwedenSKFBearing combination, combined with axial thrust balance drum, balances axial load, with a failure rate of reciprocating compressor1/10By adding components, the unit can operate stably for a long period of time, with a high energy efficiency ratio and a long service life (operating life of)100000Hours), low failure rate、Easy maintenance, etc.

◇ A single compressor can achieve graded and stepless energy regulation, which is flexible, convenient, and energy-efficient in operation.

◇ The double-layer three-dimensional oil separation filter has good oil filtration effect, ensuring the normal operation of the compressor and the cleanliness of the heat exchanger, so that the unit is always in heat exchange.

◇ Adopting a pump free built-in pressure differential lubrication system, energy-saving and reliable.

◇ Fluorine resistant and low loss motor design, equipped with reliable motor overheating protection device to ensure reliable operation of the motor.

◇ The design of the exhaust chamber and continuous gas supply to the rotor ensure low vibration and low noise of the compressor.

d.Highly reliable functional components

◇ Heat exchanger: The evaporator and condenser of the unit are both shell and tube heat exchangers, using imported plates, and the internal heat exchange copper tubes are made of internally threaded copper tubes. Has a high withstand voltage rating、High heat exchange efficiency, maintenance free, long service life, etc.

◇ System: The unit adopts Siemens system. usePLCTechnology, capable of accepting programming, and equipped with comprehensive communication functions, can easily integrate with building intelligent systems.

◇ Electrical system: The unit uses electrical components from brands such as Siemens and Schneider.

◇ Human machine interface: The unit adopts Siemens touch LCD display screen, with Chinese and English human-machine interface, simple operation program, one click start, and automatic operation.

◇ Other operating components such as expansion valves, solenoid valves, drying filters, electrical components, etc. are all imported brands with reliable quality and long service life.

e.Application of refrigerants

◇Multiple refrigerants can be used, such asR134a,R407C,R404AWaiting to meet social demands.

f.The heat recovery system of the unit uses heat exchange equipment to recover and utilize the waste heat from the condenser in the refrigeration system. The high-temperature refrigerant discharged from the compressor first enters the heat recovery device, where it exchanges heat with tap water to supply domestic or process hot water, and then enters the condenser for heat exchange. Condensation heat recovery not only provides hot water, but also improves the operation of the unit and reduces its operating costs.