1048.4KW R134A Refrigerant Water Cooled Screw Chiller

Product Specification

EK keeps looking for valuable distributors and partners around international markets…

 
R134a Refrigerant Water Cooled Screw Chiller compressors 
 
Overview

Cooling Cpacity range : 243.6~1640.7kW

Refrigerant : R134a

Touch Screen

Dual Screw Compressor

 
Unit Features
 
1.Single system flooded evaporator Multi-compressor single-system design.
The industry-leading single-system flooded evaporator design and multicompressor single-system design enable the single compressor system to provide cooling capacity of up to 470 RT. The compressors start one by one, greatly reducing shock of the startup current on the grid. In partial load, the dual compressors run by turns, providing a long life cycle.
 
2.Oil separation efficiency as high as 99.95% 
The air return outlet of the flooded evaporator is directly connected to the air suction inlet of the compressor. The optimal built-in oil route lubricating system is equipped with an innovative external efficient oil separator, which has a unique structure to change the flow direction and works with a multi-layer high-density oil filter to deliver the optimal oil separation effect with efficiency of more than 99.95%. The air return outlet of the flooded evaporator is directly connected to the air suction inlet of the compressor. This effectively reduces pressure loss and ineffective overheat of the air suction pipeline. Such design is compact, efficient and energy-saving.
 
3.Environment-friendly R134a refrigerant ,
The refrigerant injection amount is reduced by 50% or more compared with a traditional flooded unit. The lubricant injection amount is reduced by 50% or more compared with a traditional flooded unit. Applicable to heat pump, full heat recovery, and cooling accumulation conditions.
. 
4.Efficient heat exchanger
 
■ All internal heat exchange pipes use efficient heat exchange copper pipes with inner and outer
threads to ensure optimal heat exchange flow rate of the refrigerant and chilling medium, enhance the
heat transfer at the water side and refrigerant side, optimize the heat transfer efficiency, reduce energy
consumption of the unit, and lower the running expenses.
■ The evaporator adopts the latest efficient flooded design to efficiently reduce the filling amount of
the refrigerant by 50% or more compared with a traditional flooded heat exchanger.
■ The unique built-in over-cooling design of the system can fully avoid hydraulic shock of compressors and improve the cooling capacity and efficiency of the unit.
■ The multi-level automatic oil return system accurately returns oil regardless of theliquid level, eliminating impact on heat exchange efficiency.
■ The standard piping mode provided by the heat exchanger is trough coupling connection (with short
tube), facilitating field installation. Each evaporator and condenser is equipped with independent air exhaust and water drainage devices.
 
5.Precise and efficient liquid level control
 
■ The full series adopts liquid level controller with high-resolution digital display and international famous brand electronic expansion valve to steadily control the liquid level of the evaporator at the optimal position so that the unit achieves the optimal heat exchange effect at any load. This ensures high performance running of the unit and apparently improves the efficiency under partial load.
 
6.Smart Control
 
■ The large-screen LCD developed by EK is directly connected to the digital control center, greatly improving efficiency and providing monitoring, data recording, security protection, and easy operations.
■ The chilled water outlet temperature is controlled to a precision of ±0.2oC. Various sensors in the system can accurately transfer signals and data to the controller so that the controller can protect unit parts in a timely manner, ensuring reliable running of the unit.
■ Three-level password protection prevents mis-operation by non-professional personnel and ensures safe running of the unit. In addition, multiple protection functions are provided.
■ All running parameters and alerts of the unit can be recorded and saved.
■ The start/stop of the unit can be remotely controlled and data can be transmitted over Internet.
 
7.Centralized control
 
EK centralized control system adopts the industryleading control solution. The product configuration
is applicable to the control system solution for the chilled pump, cooling pump and cooling tower.
Multiple persons are allowed to control and monitor the unit on the homepage of a Microsoft-based web
browser.