TWSF Screw Chiller

Category:

TWSF Screw Chiller

Water cooled, shell & tube

Cooling capacity: 387 - 1782 kW

Compressor: Screw compressor, R134A

High efficiency compressor

♦ The double-screw compressor special for German patented water- cooled unit boasts high adiabatic efficiency. The high-efficiency and large-capacity motor helps significantly reduce power consumption of the unit, enabling the unit to operate efficiently in full load or partial load.
♦ The three-stage oil separator of the compressor works with efficiency up to 99.5%.
♦ With the stepless regulation of the slide valve, a single compressor can match 25%–100% load change, and a dual head unit can implement 12.5%–100% load change.

High efficiency heat exchanger

♦ The shell-and-tube type, flooded evaporator features newly arranged and enhanced bilateral heat exchange tubes to guarantee efficient heat exchange; uses CFD simulation to calculate and design liquid baffle to balance the air field, ensuring liquid level stability, and absorbing air only instead of liquid and guaranteeing stable operation.
♦ The shell-and-tube type condenser features built-in TICA's patented oil separator, allowing the oil separation efficiency to be up to 99.9% combined with the compressor embedded oil separator; uses CFD simulation to calculate and analyze sub-cooling part, and increases the refrigerant's supercooling degree by 2-3 times, ensuring that liquid supply pipes are free of gaseous refrigerant and the unit operates efficiently and reliably.

Unique oil return

♦ The continuous oil return technology – oil injected by oil – adopts the cutting-edge, special injection pump to inject the remaining 0.1% oil in the evaporator into the compressor to ensure safe and reliable running of the compressor.
♦ With TICA’s patented technology of automatic oil injection, the system will automatically start oil-injection control program when the oil level in the compressor reaches the low limit, ensuring the compressor’s safe and efficient operation.

Precise Control system and reliable Operation

♦ Unique dynamic optimization and control algorithms —Benefiting from TICA's years of experience in air conditioning design and application, the control algorithms feature more precise calculation of unit load; the algorithms are integrated with TICA's unique dynamic optimization and control to allow the units to make adjustments in all operating conditions and to ensure the units are keeping running in an efficient, reliable and secure manner; The refrigerant water flow ranges from 40% to 110% of the nominal flow, making it more suitable for flow variable primary pump.
♦ Intelligent control —The advanced pre-control function enables measures to be taken promptly before actual failure occurs to avoid unexpected shutdown of the unit due to an alarm. —Multiple compressors can operate automatically to reach a load balance and therefore can prolong the service life of the unit. —Each compressor and circuit can be controlled independently and can serve as the standby for another compressor, minimizing the impact of possible faults. —Unique oil return control technology resolves the issue of oil seperation. —Benefiting from the fuzzy control technology, the unit is able to adjust the water temperature based on outdoor air temperature and hence can enhance efficiency to the greatest extent while meeting the needs.

Product Inquiry & Technical Specifications

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