Wuxi Guanya Refrigeration Technology co., ltd
Antifreeze Flow Pressure Chiller

Antifreeze Flow Pressure Chiller

Antifreeze Flow Pressure Chiller


  • Product Description
  • System Introduce

The System Process Flow Is As Follows:


The liquid refrigerant in the evaporator of the unit is exchanged with the circulating air in the interior of the tank. The temperature rises from liquid to gas, and is sucked into the suction port of the compressor. The high-temperature and high-pressure refrigerant gas after compression by the compressor passes through The oil separator separates the refrigerating machine oil carried in the compression process, and then enters the condenser, and exchanges heat with ambient air or cooling water to change from high temperature and high pressure gas to high pressure normal temperature liquid. The high-pressure normal temperature refrigerant liquid is dried by a filter and then throttled and depressurized by an expansion valve, that is, from a high-pressure liquid to a low-pressure liquid. The low-pressure liquid (lower boiling point) enters the evaporator of the unit, and the cooling air is brought to the inside of the tank through the circulating air to achieve refrigeration.

The anti-freeze solution is injected into the 80L pressure vessel, and the fully closed circulation system is adopted. This avoids the opportunity for the antifreeze to contact with the outside air and ensures the condensation of the water. After the expansion tank is protected by nitrogen, the temperature range of the heat transfer liquid is also broadened because its boiling point is increased. In addition, oxidation of the thermally conductive liquid in contact with oxygen in the environment is also avoided, thereby extending the useful life of the thermally conductive liquid.


Model KRY-2A25W/6S KRY-2A38W/6S KRY-2A60W/6S
Temp Range -20℃~+100℃ -20℃~+100℃ -20℃~+100℃
Temperature control precision ±0.5℃ ±0.5℃ ±0.5℃
Temperature feedback Pt100 Pt100 Pt100
Temperature display 0.01k 0.01k 0.01k
Flow control/Group 1~20 L/min 1~20 L/min 1~40 L/min
Flow control accuracy/Group ±0.2L ±0.2L ±0.2L
Number of fluid output groups 6 groups 6 groups 6 groups
Pressure control/group 0.2bar~2.5bar 0.2bar~2.5bar 0.2bar~2.5bar
Flow description When the temperature control is lower than -30℃, the flow rate is controlled within 80% of the maximum value.
Flow pressure description The unit can control the flow individually or separately. Need to control different solutions at the same time (customized)
Heating Power 15kW 25kW 38kW
Cooling
capacity
100℃ 25kW 38kW 60kW
20℃ 25kW 38kW 60kW
0℃ 25kW 38kW 60kW
-20℃ 10kW 15kW 24kW
Compression Emerson Valley Wheel Compressor
Expansion valve/solenoid valve Danfoss Thermal Expansion Valve / Emerson Solenoid Valve
Oil distributor Emerson
Dry filter, Pressure control Danfoss
Evaporator Danfoss/KAORI plate heat exchanger
Circulating pump German brand magnetic drive pump
Frequency converter Delta
Flow,Pressure sensor Electromagnetic flowmeter, Johnson Controls pressure sensor
Input, Display 10 inch color touch screen \ Siemens S7-1200 PLC controller
Communication Modbus RTU protocol RS485 interface, optional CAN communication bus, Ethernet interface TCP/IP protocol
Safety protection With self-diagnosis function; Refrigerator overload protection; High pressure switch, overload relay, thermal protection
device, low liquid level protection, high temperature protection, sensor fault protection and other safety functions
Closed circulation
system
The whole system is a fully closed system, there will be no oil mist at high temperature, low temperature does not
absorb water in the air, the system in operation will not because of high temperature pressure rise, low temperature
automatically add heat conduction medium.
refrigerant R404A/R507C
Connection size There are six groups of inlet and outlet,G3/4
Cooling water@20C 6000L/H 9000L/H 15000L/H
Condenser(W) Shenshi tube type heat exchanger
Condenser(A) Optional air-cooled type, upper air outlet, the equipment size will be increased.
Power 380V50HZ 38kW max 55kW max 82kW max
Dimension cm 120*180*205 145*205*225 145*205*225
Weight(W) 900kg 1100kg 1750kg
Optional 220V 60HZ Three phase  400V 50HZ Three phase  440V 60HZ Three phase
Optional Extend to -40~+135℃
Optional The size external circulation pipe line is DN15 or DN20, do not throttle, which will increase the circulation pump load,
pipe need to be insulated, and adopt rubber and plastic insulation pipe which can afford high temp.





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