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SLJ  -150°C ~ -110°C

SLJ -150°C ~ -110°C

  • Temperature Control Range: -150°C ~ -110°C
  • Siemens PLC Controller, Danfoss Electronic Expansion Valve
  • Semi-Closed (Bipolar) Piston Compressor, Semi-Hermetic Screw Compressor

Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.

 

Application: Various Reactors, Distillation or Extraction System, Laboratory, University, Research Institute, Aerospace, Automotive Industry, Semiconductor and Electrical Test, Chemical, Pharmaceutical, Petrochemical, Biochemical, Medical, Hospital, R&D Workshop, Biological and Other Industries.

 

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The basic principle of Ultra-Low Temperature Chiller is that under ultra-low temperature, the movement of molecules is slowed down until the surface of the trapped and frozen cryogenic coiled tubes is slowed down, and the vapor is easy to be arrested, set and frozen, and the capture rate is high.

LNEYA specializes in the production of single-fluid cryogenic chillers. Temperature control range down to -150°C, which can meet the needs of different refrigeration temperatures. Products are widely used in chemical, pharmaceutical, biochemical and other industries in the field of low temperature reaction, refrigeration speed, safety and reliability. The company developed a direct-cooled ultra-low temperature chiller, using international brand compressors Carrier, using automatic cascade refrigeration mode and mixed refrigerants, within 3 minutes can be refrigerated to minus 120°C.

Advantages of Ultra Low Temperature Chillers

  • The ultra-wide temperature control range can meet the temperature requirements of different industries.
  • Secondary subcooling technology is adopted, with fast refrigeration speed.
  • Imported semi closed piston compressor, semi closed piston two-stage compressor and semi closed screw compressor are adopted. The evaporator adopts high force plate heat exchanger, which has small volume and high efficiency.
  • A full set of imported cold controls (Danfoss pressure controller, balance valve, expansion valve, solenoid valve, drying filter, Emerson oil separator, alco sight glass, check valve, etc.) are adopted.
  • Danfoss electronic expansion valve is adopted with high control accuracy.
  • Siemens PLC S7-200 / 300 controller, LNEYA touch screen display, automatic control and operation, temperature curve display, temperature record can be exported to USB flash disk, fault alarm record and other functions are adopted.
  • The large refrigerating capacity equipment adopts semi closed screw compressor with economizer operation, which is combined with electronic expansion valve to ensure high efficiency and energy saving.
  • Factory test: the load test of each equipment in the factory shall not be less than 12 hours.

Customer Cases

Basic Structure of Low Temperature Chiller

Industrial water chiller consists of compressor, condenser, evaporator, expansion valve and other accessories.

  1. Compressor: in the industrial water chiller system, the compressor is the power to ensure refrigeration. The compressor is used to increase the pressure of the refrigerant in the system and make the refrigerant circulate in the refrigeration system to achieve the purpose of refrigeration.
  2. Condenser: high temperature and high pressure Freon of the refrigeration system enters the condenser after coming out of the compressor, releases a lot of heat to the cooling medium, and then is cooled and liquefied.
  3. Evaporator: when the Freon liquid of the refrigeration system enters the expansion valve for throttling and is sent to the evaporator, it belongs to the vaporization process. At this time, it needs to absorb a lot of heat to gradually reduce the valence and mass temperature to achieve the effect of refrigeration and cooling.
  4. Expansion valve: in the refrigerant system flow chart of the industrial water chiller, we found that there is a small part between the outlet of the condenser and the inlet of the evaporator, which is called thermal expansion valve. It is a throttling and depressurizing part to reduce the condensation pressure of the refrigerant to the evaporation pressure. Therefore, its role in the refrigeration system is essential. It is connected with the refrigeration compressor, evaporator, condenser It is also called the four components of the refrigeration system.
  5. Other accessories: including drying filter and high and low pressure controller. The drying filter is non detachable. The internal structure adopts molecular sieve structure, which can remove a small amount of impurities and water in the pipeline, so as to purify the system. The high and low pressure controller plays a protective role in the refrigeration system.

 

Note: please leave your detailed requirements, we will select or customize products for you.

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Model SLJ-2W SLJ-3W SLJ-4W SLJ-6W SLJ-11W
Temperature Range  -150℃~-110℃
Cooling capacity -120℃ 2kW 3kW 4kW 6kW 11kW
-135℃ 1.4kW 2.1kW 2.8kW 4.2kW 7.7kW
Evaporator area 1.5m2 2m2 2.8m2 4m2 7.8m2
Connection size Φ16 Φ16 Φ16 Φ19 Φ22
Compressor Dorin semi-closed compressor/Bitzer semi-closed compressor
Operation Panel 7-inch color touch screen display, temperature curve record
Control System SIEMENS S7 PLC&Module,Set temperature difference of refrigeration on & off
Evaporator Danfoss/KAORI plate heat exchanger
Condenser Casing type water-cooled condenser / tube-type water-cooled condenser
Intermediate heat exchanger Danfoss/KAORI plate heat exchanger
Refrigeration accessory Oil separators, drying filters, expansion valves, refrigeration solenoid valves, pressure control, mirrors, etc. all use Emerson / Danfoss and other brands
Electric AC contactors, intermediate relays, circuit breakers, thermal relays, etc. are Schneider / ABB brand
Refrigerant R404A /R23/R14/R50 Mixed Refrigerant
Safety Protection High pressure protect; water supply cut-off protection; over-current protection; leakage protection; sequential and phase failure protection; High temperature protection; Sensor Failure protection; Liquid low level protection etc. multi-safety protection
Piping material Copper tube
Case material Cold rolled sheet spray 7035
Cooling Water at 20 degree 2.5m³/h 3m³/h 4m³/h 6m³/h 10m³/h
Power 380V50HZ 8.6kW 380V50HZ 12kW 380V50HZ 16kW 380V50HZ 24kW 380V50HZ 36kW
Dimension  (mm) 700*1000*1750 700*1000*1750 800*1200*1850 1000*1500*1850 1450*2050*2050
Weight (kg) 320kg 350kg 400kg 600kg 950kg
dB within 75 dB within 80 dB within 90 dB

Note: please leave your detailed requirements, we will select or customize products for you.

Message                  Email                      WhatsApp

Model SLJ-2W SLJ-3W SLJ-4W SLJ-6W SLJ-11W
Temperature Range  -150℃~-110℃
Cooling capacity -120℃ 2kW 3kW 4kW 6kW 11kW
-135℃ 1.4kW 2.1kW 2.8kW 4.2kW 7.7kW
Evaporator area 1.5m2 2m2 2.8m2 4m2 7.8m2
Connection size Φ16 Φ16 Φ16 Φ19 Φ22
Compressor Dorin semi-closed compressor/Bitzer semi-closed compressor
Operation Panel 7-inch color touch screen display, temperature curve record
Control System SIEMENS S7 PLC&Module,Set temperature difference of refrigeration on & off
Evaporator Danfoss/KAORI plate heat exchanger
Condenser Casing type water-cooled condenser / tube-type water-cooled condenser
Intermediate heat exchanger Danfoss/KAORI plate heat exchanger
Refrigeration accessory Oil separators, drying filters, expansion valves, refrigeration solenoid valves, pressure control, mirrors, etc. all use Emerson / Danfoss and other brands
Electric AC contactors, intermediate relays, circuit breakers, thermal relays, etc. are Schneider / ABB brand
Refrigerant R404A /R23/R14/R50 Mixed Refrigerant
Safety Protection High pressure protect; water supply cut-off protection; over-current protection; leakage protection; sequential and phase failure protection; High temperature protection; Sensor Failure protection; Liquid low level protection etc. multi-safety protection
Piping material Copper tube
Case material Cold rolled sheet spray 7035
Cooling Water at 20 degree 2.5m³/h 3m³/h 4m³/h 6m³/h 10m³/h
Power 380V50HZ 8.6kW 380V50HZ 12kW 380V50HZ 16kW 380V50HZ 24kW 380V50HZ 36kW
Dimension  (mm) 700*1000*1750 700*1000*1750 800*1200*1850 1000*1500*1850 1450*2050*2050
Weight (kg) 320kg 350kg 400kg 600kg 950kg
dB within 75 dB within 80 dB within 90 dB

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