Refrigeration machines (Chillers) are installations used to remove heat from a cooled object at a lower temperature than the ambient temperature. They can be used to obtain temperatures from +10 to -150C.
Chillers - principle of operation
Cooling occurs when heat is absorbed by boiling a liquid. The boiling heat depends on the ambient pressure and the characteristics of the liquid itself. Each of them has its own boiling heat. The most common refrigerant coolant used in modern chillers is freon. If it is in an open vessel at normal atmospheric pressure, then it boils, intensively absorbing heat. As a result, frost appears on the walls of the vessel. Freon will continue to boil until it completely passes into a gaseous state.
Chillers operate according to the described scheme with the difference that freon is in a closed hermetical heat exchanger - evaporator. During boiling, it intensely absorbs heat from the tube material. They are cooled and transfer the resulting cold to air or water, based on the purpose of the chiller. For resumption and continuity of the cycle, the gaseous refrigerant coolant is returned to liquid form in the condenser. A compressor is used to create the pressure necessary for condensation. All components are connected through pipelines in a certain sequence, forming a closed system.
Chillers - types
Chillers can be divided into several types, taking into account the cycle scheme - adsorption and absorption, compression and ejector.
Chillers - design
These are fairly complex machines consisting of a set of components. Depending on the model and design, they can change significantly, become more complicated, but the implementation of the work cycle requires a set of basic elements:
Other details are also involved in the design of the machine - solenoid valves, gauge glasses, instrumentation and measuring devices, and filter driers. All of them are connected into a single closed circuit, which is hermetical and thermally insulated. The resulting circuit is filled with refrigerant coolant.
The cost of such machines has a large price range. It will depend on the principle of operation, type, power, characteristics, additional options. First you need to make a selection based on the tasks. In the company «Akvilon Build Installation» you can find out all about chillers - advantages and disadvantages, basic characteristics, and working rules. Our experts will carry out accurate calculations and recommend the best solution for you.
We offer you chillers, the price of which will pleasantly surprise you. With the high quality of the supplied equipment, we try to adhere to a moderate pricing policy, offering affordable and effective options. You can buy сhillers from us at an attractive cost. We will also provide you with timely delivery, installation of refrigeration systems and a full range of related services.
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