Air cooled cooling screw type industrial water chiller

Screw chiller applications

For cooling moulds to reduce products molding cycle, also they are available in the cooling of equipments in order to maintain normal temperature. Besides, they are suitable for other industries with the need of cooling.

In large industrial cooling

Central air conditioning system

Cold, constant temperature chamber.

Features

Well known brand compressor

Unit adopts Taiwan HANBELL or Germany BITZER brand semi-hermetic screw compressor. The latest 5 to 6 patented screw rotor profile with excellent efficiency.

Adjustable infinite or closely stepped capacity control, features energy efficient, stable and quite running.

Built-in full intelligent monitoring and protection including thermal motor temperature monitoring, phase sequence monitoring, manual reset lock-out, oil temperature sensor.

Wide range of refrigerant for option, including R22 and R134a, R407c.

Microprocessor control system

Industrial PLC centralized control combined with compressor capacity control system, precisely monitor, ensure the unit is running at optimum efficiency and reduce operating costs.

Integrated water, low temperature, high/low pressure, antifreeze, missing phrase, delay start, anti-phase, overload, motor overheating, oil pressure differential and so on many safety protections and dealing.

W shape aluminum fin type condenser, assuring adequate heat exchanging area within smaller unit size.

High efficient evaporator with internal thread copper tube.

Large air volume axial fan with metal blades. Motor separated from net-cover, fixed on exhaust port by metal.

Easy installation,reliable running

Closely stepped start-up,minimize impact to electricity

Steady and safe running, low vibration, easy for installation

Compact structure, less space demand and light in weight, easy for transport and installation

Completely wired, inspected and tested pre-delivery, saving installation time and cost.

Working Principe

Cooling circulation: the high temperature, high pressure air from compressor’s high pressure spraying outlet comes into fin type air side heat exchanger, which works as a condenser to cool down the air into liquid. Then it comes into expansion valve after filtration. There, after a pressure downfall, it comes into shell and tube type evaporator. The low temp low pressure and saturated refrigerant absorbs the heat from cooling water so to low down its temperature. The state of the shell and tube type evaporator’s refrigerant outlet are low temperature low pressure air then comes to air and liquid separator to be separated. Therefore, the air comes to compressor’s low pressure air suction inlet to get compressed. The high pressure spraying outlet(compressor) →condenser(air side heat exchanger) →filter expansion valve→evaporator(water side heat exchanger) →air and liquid separator→the low pressure air suction inlet.

Machine show: 

Working with carbonation mixer