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Trane Centrifugal Chiller
Trane Centrifugal Chiller

Trane Centrifugal Chiller

Condenser: high-efficiency heat exchange tube to reduce power consumption. Unique tube clamp technology effectively protects the heat exchange tube.

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Product Introduction

Model description

Main components

Condenser: high-efficiency heat exchange tube to reduce power consumption. Unique tube clamp technology effectively protects the heat exchange tube.

Compressor: high efficiency, two-stage compression, wide cooling capacity adjustment range.

Semi-closed motor: liquid refrigerant cooling, low winding temperature. The operating environment is clean and the reliability is high.

Onboard starter: It is convenient for users to install and save user operation space.

Falling film evaporator: less cooling capacity charge, reducing use cost. High-efficiency heat exchange structure, energy saving is visible.

CH530 control cabinet: self-adaptive control, the unit runs more stable. The feedforward function makes the energy adjustment more sensitive. Support one-time pump frequency conversion, the system is more energy-efficient.

Unit characteristics

●Using two-stage compression and single-stage economizer structure improves the efficiency of the unit both in theory and in actual application.

●The advanced fluid dynamics principle is used to optimize the design of compressor impeller and guide vane, which greatly improves the efficiency of the unit.

●The advanced basic load function can give priority to the use of high-efficiency units to save users' operating costs.

●The chiller with high reliability, so you can rest assured.

●The high-strength aluminum alloy impeller is tested under the condition of 125% of the design speed. After assembly, the vibration is less than 5m m/s through the dynamic balance test, which ensures the reliability of the unit.

●The compressor and motor adopt a closed structure, without couplings, shaft seals and other wearing parts, which ensures the reliability of the unit.

●The liquid refrigerant cools the motor, the motor is fully cooled, and the winding temperature is low, which ensures the reliability of the unit.

●The unique multi-target tracking automatic control system enables the unit to operate normally in the harsh external environment and guarantees the reliability of the unit.

●The cold water variable flow compensation function enables the air conditioning system to realize the variable flow of cold water at the inlet and outlet of the evaporator, eliminating the need for a complicated secondary frequency conversion system and supporting the energy saving of the system.

●Quick start function, the unit can be restarted 30-60 seconds after shutdown, especially suitable for temporary power failure of the unit's power system.

●A chiller with strong adaptability and a wide range of applications.

●Strong ability to adjust part load, the unit can run at 10-16% load at least.

●The unit adapts to a wide temperature range of the external environment, which can meet the requirements of using the unit in excessive seasons.

Causes of Centrifugal Compressor Surge

Since the centrifugal compressor is a speed compressor, the phenomenon of "surging" will occur when the partial load is small.

As shown in the figure, the speed V at the outlet of the centrifugal compressor can be decomposed into a tangential speed Vt and a radial speed VR. The tangential speed Vt depends on the diameter of the impeller and the speed of the impeller, and the radial speed is proportional to the flow of refrigerant. For example, when the angle between the speed V and the tangential speed Vt is reduced to a certain value, the compressor gas cannot be pressed out.

Cooling capacity under standard conditions: the chilled water inlet temperature is 12°C, the chilled water inlet temperature is 32°C, and the cooling water outlet temperature is 37°C.

The standard water chamber is under pressure of 1.0MPa.

Unit size and weight