Hangzhou KASSEL Machinery co., ltd E-mail: kassel@kassel-group.com
Home > News > Content
Layout And Operation Of Water Cooled Chiller
- Oct 27, 2017 -

This courseware mainly describes how to use a number of Water Cooled Chiller together, there are a variety of combinations, piping and control methods, usually constitute a frozen room.

Single Water Cooled Chiller

The simplest form is that only one chiller supplies chilled water to the coil of the building. The chilled water can be cooled in a water-cooled or air-cooled manner. Regardless of the cooling medium, the single chiller has a common feature of some and multiple chiller combinations.

These features include chilled water flow control, energy-saving mode of operation, control methods and typical operating steps.

First, let us know some of the following basic principles:

Let us know:

1 water flow changes

2 energy consumption

How to control Water Cooled Chiller

4 general run order

For traffic changes

Water Cooled Chiller are designed to run at a flow rate of 3fps to 12fps. In the flow rate range, the tube flow in the turbulent state, good performance, heat transfer to achieve the desired results. When the flow rate is less than 3fps, the flow becomes laminar flow, and the heat exchanger will not be able to achieve the desired effect and the performance will be unstable. Chiller operation will be unstable.

Therefore, the tube flow must be outside the laminar flow area to ensure reliable and reliable operation.

Although the maximum flow rate required for the heat exchanger design is 12 fps, the design of the system must take into account the pressure drop, so the designer should take measures to ensure a pressure drop of 20 to 30 inches of water. Generally speaking, this will make the tube flow rate between 8 ~ 10fps.

Therefore, the percentage of the ladle flow that may occur in the Water Cooled Chiller is between 30% and 38%. In this take 40%. Thus, it is advisable to keep the Water Cooled Chiller operating at a load of not less than 40% to ensure that the Water Cooled Chiller are operating reliably and reliably.

Chiller group heat exchanger flow rate range - (3 <speed <12 feet / second), usually 8 ~ 10 fps;

Water Cooled Chiller are designed to run at a flow rate of 3fps to 12fps. In the flow rate range, the tube flow in the turbulent state, good performance, heat transfer to achieve the desired results. When the flow rate is less than 3fps, the flow becomes laminar flow, and the heat exchanger will not be able to achieve the desired effect and the performance will be unstable. Chiller operation will be unstable.

Therefore, the tube flow must be outside the laminar flow area to ensure reliable and reliable operation.