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Industrial glycol chiller system Water cooled screw chiller
Glycol chiller is one kind of
low-temperature chiller using glycol water as the circulating coolant to
achieve minus temperature for industrial and process applications.
A chiller is a type of refrigeration system
that cools a tub of glycol to reduce its temperature. The glycol is then pushed
through a closed circuit of tubing or piping that is connected to the glycol chiller.
This circulates cooled glycol and helps to reduce the temperature of whatever
is attached to the system.
Oumal is a professional glycol chiller manufacturer and supplier for over 15 years.
As the leading glycol chiller company, Oumal
provides various of glycol chillers from 1.5ton to 120ton refrigeration
capacity, and air-cooled glycol chiller and water-cooled glycol chiller based
on your specific requirements.
Why do we need to add glycol into the chiller?
As we know, water will be iced once the
temperature getting 0℃ or even below, glycol is helping water anti-freezing
into iced, that’s why we call it is glycol chiller.
Using a glycol-water mix as a chiller
coolant has various benefits over the use of plain water as a chiller fluid.
These advantages are due to its unique physical properties which include a
lower freezing point than water.
Generally, A glycol chiller plant is
composed of a refrigeration component and tubing containing a glycol-water
mixture as coolant. Chilled fluid from the refrigeration unit is channeled
through the piping associated with a thermal exchanger surrounding a heated
process. After absorbing heat from the associated process, the warmed coolant
is returned to the refrigeration unit for cooling after which the process is
repeated.
For many chiller types, ethylene glycol is
mixed with water at a ratio of 60/40. This higher percentage of glycol boosts
the mixture’s antifreeze properties significantly. This is useful in cases
where rapid cooling is required. In these situations, a process can be cooled
to very low temperatures without freezing the coolant within its piping.
A conventional water chiller works on the principles of heat transmission between various mediums both fluid and solid. These cooling systems work either by heat absorption or vapor compression. The basic components of a water chiller system include a refrigeration unit and a piping system that circulated chilled coolant.
●：Temperature control -35℃ to 5℃
●：Glycol water cooled screw chiller use shell and tube evaporator
●：Glycol mixture or salt marine suitable
●：Screw or piston compressor available
●：Safety protection covered low-temperature
chiller
●：Schneider electrical components
●：PLC / Touch screen/Mic-computer control
panel.
The working diagram of glycol chiller:
1. The compressor of glycol chiller
Oumal glycol chiller uses top brand scroll or screw-type compressor features energy efficiency, low noise, and long service time.
In order to ensure that the pressure inside
the evaporator is low enough and that the refrigerant is at such a low
temperature, the compressor is used to pump out the evaporated refrigerant and
compress the low temperature and pressure into the high temperature and
pressure refrigerant gas.
2. Condenser for a glycol chiller
The refrigerant with high temperature and
pressure is condensed into liquid in the condenser. The refrigerant in the
condenser releases heat in the middle of air or water with a lower temperature
than it.
3. Thermal expansion valve in a glycol chiller
The thermal expansion valve plays an important role in a glycol chiller. The refrigerant of glycol chiller drops from the condensation pressure to the evaporation pressure, so the liquid from the condenser can be placed in the liquid receiver.
At this time, the refrigerant is in the
state of normal temperature and high pressure, and then passes through the
expansion valve to reduce the boiling point, and the liquid enters the
evaporator to absorb heat and evaporate.
4. The evaporator in a glycol chiller
There is two type of evaporator in glycol chiller- shell & tube type and plate heat exchanger.
After passing through the thermal expansion valve, the low-temperature and low-pressure refrigerant liquid exchanges with the evaporator.
Once the heat is absorbed, it becomes
saturated or overheated steam, which can be returned to the compressor for
refrigeration.
With 15 years of design and make glycol
chillers, Oumal is willing to provide all types of high-quality glycol chillers
for our valued customers.
Low Temperature Chiller Application
All low-temperature chillers manufactured by OUMAL, supplying constant glycol water is the ideal cooling partner for breweries, wineries, cider mills, and spirits, beverage, dairy milk, yogurt machine, laboratories, semiconductor, medical, pilot plants, and some other applications that require accurate and precise ultra-low temperature control.
Glycol water cooled screw chiller Products Specification
| Item Model | OMC-240WDL | |||
| Norminal cooling capacity | Temp | -10℃ | 445.4 | |
| -20℃ | 304.2 | |||
| -30℃ | 190.0 | |||
| Input Power | KW | 209.6 | ||
| Power Supply | 3PH-380V/415V 50HZ(220V/440V 60HZ)) | |||
| Refrigerant | Type | R22 （R404A） | ||
| Control Mode | Expansion Valve | |||
| Compressor | Type | Semi-Hermetic Screw | ||
| Power | KW | 209.6 | ||
| Start-up Mode | Y-△ | |||
| Capacity Control | ％ | 0-25-50-75-100 (0-33-66-100) | ||
| Evaporator | Type | Temp | Shell and Tube | |
| Chilled water flow | -10℃ | m3/h | 76.6 | |
| -20℃ | 52.3 | |||
| -30℃ | 32.7 | |||
| Pipe Diameter | Inch | 6“ | ||
| Condenser | Type | Shell and Tube | ||
| Cooling water flow | m3/h | 112.3 | ||
| Pipe Diameter | Inch | 6" | ||
| Dimension | Length | mm | 3460 | |
| Width | mm | 1550 | ||
| Height | mm | 1820 | ||
| Net Weight | kg | 3160 | ||
| Running Weight | kg | 3400 | ||
| Safety Protection: Compressor over temperature protection, over load protection, high and low pressure protection, anti-freezing protection, reversed and lacking phase protection, fusible blug, flow switch | ||||
Package and Shipping
FAQ
Q1: Could you help us to recommend the model for our project?
A1: Yes, we have engineer to check the details and make the scheme for you. Based on the following:
1)Cooling capacity;
2)chilled water inlet and outlet temperature
3)chilled water flow
4) Refrigerant;
5) Ambient temperature;
6)Voltage;
7) Be used for what industry?
8)Any other special requirements?
Q2: How to ensure your product with good quality?
A2: All our products with CE certificate. And use the well-know brand accessories, such as copeland, danfoss,Hanbell, Bitzer compressor Emerson expansion Valve, Siemens controller.
also can be customized. All OUMAL Chillers are factory tested under load conditions to ensure good quality and easy installation for users
Q3: What's the warranty?
A3: 15 months warranty for free if confirmed by both side damage in the quality reason.
Q4: Whats your payment term?
A4: We accept T/T, LC, Western Union, etc. Normally, 30% deposit for production, 70% balance before shipment.
Q5: Are you a manufacturer?
A5: Yes, we have more than 15 years in water chiller business. Also have patent on the water chiller appearance.
The control box design make the unit safety and stably.
Q6: How can i Place an order
A6: Click Below to fill the table or Call 0086 15112554736
