Withair is proud to offer an extensive line of water-cooled screw
chillers ranging from 33 to 1,000+ tons. The water-cooled screw
chillers feature a variety of models and options engineered to fit
a wide range of applications. Withair water-cooled screw chillers
are ideal for customers who are focused on high energy efficiency,
superior reliability and long equipment life. Withair products
within the unique portfolio are designed to help lower
environmental impact with next-generation, low global warming
potential refrigerants and high-efficiency operation.
Withair the medium and low temperature chiller is based on this
year's design of low temperature water-cooled chillers by key
technicians of this company. It integrates the advanced technology
of products in same category, and is a highly effective, energy
saving and environment protecting fifth generation chiller designed
and developed by this company. The application of advanced
technology promotes the product to an international leading
status.The equipment can provide -45℃~0℃ medium and low
temperatures and a secondary refrigerant that may be applied to any
place where there is a demand for varieties of medium and low
temperature cold sources. This can assist with the production
process of any industry,i.e. pharmaceutical, chemistry, metallurgy,
electronic and food, etc., and act as the cold source mainframe of
large size refrigerators and ice stadiums.
The heat recovery products can keep water at 50℃~60℃ and play a
role of saving energy.
The key advantages Include
Multiple system independent design technology, independent control,
non-interference in each other.
Under the circumstances, each compressor in the refrigeration
systems at the minimum load (25%), the startup of the Y- for
voltage reduction may decrease the start current and have an impact
on the electric network.
Heat recovery technology for waste heat utilization
Through the heat collector technology outfitted in this equipment,
it may keep water at 40℃~60℃. Here, based on the requirements of
water sources of different water quality levels, the maximum
recovery rate reaches over 70% and can save the integrated energy.
Application of High Effective Refrigeration Compressor
An imported highly-effective semi-hermetic screw compressor
economizer shall be adopted. The main features of the compressor
are as follows:
* International well-known brand screw refrigeration compressor
with American and European patent technology.
* Third generation nonsymmetrical tooth-type screw of the most
advanced line with high efficiency of 5:6.
*Semi-hermetic design, where only three moving components are
required and small component quantity, low fault rate and easy
maintenance are featured as well.
*Grading or continuous energy adjustment may be actualized, which
are convenient and flexible in control, and high in energy saving
*The non-spacing multiple thrust bearing and radial bearing, from
the well-known companies, SKF and FAG, are precise in structure and
high in reliability.
*The double-layer three-dimensional oil separation filer has an
excellent effect in oil filtering and may assure the compressor to
be at a normal working state and that the heat exchanger is working
* The pump-free style of inbuilt pressure difference lubricant
supply and lubrication system is energy saving, highly effective
*The motor, which features a specific fluorine resistance and low
iron loss, is equipped wi