The composition and introduction of BUSCH chiller

      Water cooled chiller is a water cooling equipment, can provide constant temperature, constant current, constant pressure cooling water equipment. Its working principle is to machine water tank into a certain amount of water, through the refrigeration system will be cooling water, again by the water pump cooling water into the cooling equipment, frozen water will heat away after elevated temperature back to the water tank, achieve cooling effect. The cooling water temperature can be adjusted automatically according to the requirement, and can save water for a long time. Therefore, Water cooled chiller is a kind of standard energy saving equipment.
Cooling principle of industrial chiller
Generally speaking, the industrial chiller contains three systems: the refrigerant circulating system, the water circulating system, the electric appliance self-control system.

Refrigerant cycle system:

     After the liquid refrigerant in the evaporator absorbs heat from the water and began to evaporate, liquid refrigerant complete evaporation of gas is sucked into the compressor and compression (pressure and temperature increase, the gaseous refrigerant through the condenser (air / water) heat absorption and condenses into liquid, through the thermal expansion valve or capillary throttle into low-temperature and low-pressure refrigerant into the evaporator, refrigerant cycle process is completed.

Basic composition of refrigeration system

    Compressor: compressor is the core component of the whole refrigeration system, and also the source of the power source of refrigerant compression.. Its role is to convert the input into mechanical energy, suction, compression and transport of refrigerant vapor, driven cycle of Condenser: in the refrigeration process, the condenser plays an output heat and can condense the refrigerant.From a refrigeration compressor discharge pressure superheated steam entering the condenser, the in all of the heat absorption working process, including from, as well as evaporator and refrigerating compressor in the pipe by absorbing heat transfer to the surrounding medium (water or air) away; refrigerant high pressure superheated steam to condense into liquid.

     Dry filter: in the refrigeration cycle must prevent moisture and dirt from entering, source of moisture is mainly of micro amount of water contained in the newly added lubricating oil and refrigerant, or due to system maintenance time gas into the water. If the system of moisture is not ruled out clean, when the refrigerant through the throttle valve (thermal expansion valve or capillary), due to the decrease of temperature, pressure and sometimes water will solidify into ice, causes the channel blocking, affecting the normal operation of the refrigeration device. Therefore, the drying filter must be installed in the refrigeration system.

    Throttling valve: thermal expansion valve (or capillary) in the refrigeration equipment installed in the dry filter and evaporator, thermal expansion valve of the temperature sensitive package is wrapped in the evaporator outlet. Its main function is the normal temperature and high pressure liquid refrigerant flows in a thermal expansion valve throttle step-down, low-temperature low-pressure refrigerant vapor (mostly liquid, small steam) into the evaporator, in the evaporator absorbs heat of vaporization, and achieve cooling purpose.

    The evaporator: the evaporator is the heat transfer equipment that is absorbed by the refrigerant liquid (in fact boiling) to absorb the heat of the cooling medium.. Its function in the refrigeration system is to absorb heat. In order to ensure the evaporation process can be stable and lasting, we must keep the evaporation of the gas away from the evaporation of the compressor and keep the evaporation pressure.
     Refrigerants: most industrial cooled water chillers used in modern industry use R22 or R407C as refrigerants. The refrigerant is the working fluid in the refrigeration system. Its main function is to carry the heat and realize the heat sink and the heat release when the state change.

Water circulating system:

     The water circulation system is the equipment which takes water from the pump to the user to cool the water from the water tank, the frozen water takes the heat away the temperature rise, then returns to the freezing tank.

Electrical control system:

The electrical control system includes power supply (main circuit) and automatic control part (control circuit). The main circuit part is the power supply through the contactor to the compressor, the fan, the pump and so on. The control circuit includes a temperature controller, pressure protection, delay relays, relays, overload protection and other combinations to achieve the automatic start and stop of the water temperature, protection and other functions.

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