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LC  -25°C ~ -5°C    Low Temperature Chillers

LC -25°C ~ -5°C Low Temperature Chillers

  • Temperature Control Range: -25°C ~ -5°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.

Features 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 LC-12W LC-20W LC-30W LC-40W LC-60W LC-80W LC-120W LC-180W LC-240W LC-360W
Temperature Range  -25°C~ -5°C
Cooling Capacity
At -20°C
12kw 20kw 30kw 40kw 60kw 80kw 120kw 180kw 240kw 360kw
10320Kcal/h 17200Kcal/h 25800Kcal/h 34400Kcal/h 51600Kcal/h 68800Kcal/h 103200Kcal/h 154800Kcal/h 206400Kcal/h 309600Kcal/h
Circulation Pump Info 6.6m³/h 9m³/h 15m³/h 15m³/h 25m³/h 25m³/h 25m³/h 35m³/h 35m³/h 50m³/h
2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max
Inlet&outlet connection size DN-25
PN-10
DN-25
PN-10
DN-32
PN-10
DN-32
PN-10
DN-40
PN-10
DN-40
PN-10
DN-40
PN-10
DN-50
PN-10
DN-50
PN-10
DN-65
PN-10
Cooling Water at 30 degree 8m³/h 10m³/h 16m³/h 20m³/h 25m³/h 30m³/h 38m³/h 55m³/h 70m³/h 100m³/h
Cold Storage tank (optional) 150L 200L 250L 350L 500L 600L 750L 1000L 1350L 1800L
Expansion tank(standard) 100L 175L 250L 350L 500L 600L 750L 1000L 1350L 1800L
Compressor Emerson Copeland、Dorin semi-closed compressor、Carlyle Carlyle、HANBELL、Fusheng、Bitzer screw compressor
Operation Panel
Control System Standard: Single-chip micocomputer controller; Stepping control; Set temperature difference of refrigeration on & off
Optional: SIEMENS S7-200PLC&Module
Closed Circulation System The whole system is a full closed circulation, there is no oil mist at high temperature and no water vapor at low temperature, pressure do not rise up when system is running. The system will supplement oil automatically at low temperature
Circulation Pump LNEYA Mangetic Pump/German Brand Mangetic Pump
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/R507C, optional: R448A
Secondary refrigerant Non-corrosive liquid, aqueous ethanol solution, aqueous glycol solution, heat transfer oil, etc.
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
Level Indicator Adopt glass liquid level indication
Piping material Expansion tank, cold storage tank and circulation pipeline are all made of SUS304
Case material Channel steel + square tube + cold rolled plate sealing plate        Spray
Dimension cm 100*150*185 100*150*185 205*145*205 205*145*205 205*145*175 245*145*205 300*160*225 350*160*205 400*160*225 500*200*225
Power 12kW max 12kW max 28kW max 38kW max 50kW max 61kW max 86kW max 127kW max 167kW max 247kW max
dB within 75 dB within 80 dB within 90 dB
Weight (kg) 800 950 1100 1350 1500 1800 2400 3100 3600 5000

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

Message                  Email                      WhatsApp

Model LC-12W LC-20W LC-30W LC-40W LC-60W LC-80W LC-120W LC-180W LC-240W LC-360W
Temperature Range  -25°C~ -5°C
Cooling Capacity
At -20°C
12kw 20kw 30kw 40kw 60kw 80kw 120kw 180kw 240kw 360kw
10320Kcal/h 17200Kcal/h 25800Kcal/h 34400Kcal/h 51600Kcal/h 68800Kcal/h 103200Kcal/h 154800Kcal/h 206400Kcal/h 309600Kcal/h
Circulation Pump Info 6.6m³/h 9m³/h 15m³/h 15m³/h 25m³/h 25m³/h 25m³/h 35m³/h 35m³/h 50m³/h
2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max 2.5bar max
Inlet&outlet connection size DN-25
PN-10
DN-25
PN-10
DN-32
PN-10
DN-32
PN-10
DN-40
PN-10
DN-40
PN-10
DN-40
PN-10
DN-50
PN-10
DN-50
PN-10
DN-65
PN-10
Cooling Water at 30 degree 8m³/h 10m³/h 16m³/h 20m³/h 25m³/h 30m³/h 38m³/h 55m³/h 70m³/h 100m³/h
Cold Storage tank (optional) 150L 200L 250L 350L 500L 600L 750L 1000L 1350L 1800L
Expansion tank(standard) 100L 175L 250L 350L 500L 600L 750L 1000L 1350L 1800L
Compressor Emerson Copeland、Dorin semi-closed compressor、Carlyle Carlyle、HANBELL、Fusheng、Bitzer screw compressor
Operation Panel
Control System Standard: Single-chip micocomputer controller; Stepping control; Set temperature difference of refrigeration on & off
Optional: SIEMENS S7-200PLC&Module
Closed Circulation System The whole system is a full closed circulation, there is no oil mist at high temperature and no water vapor at low temperature, pressure do not rise up when system is running. The system will supplement oil automatically at low temperature
Circulation Pump LNEYA Mangetic Pump/German Brand Mangetic Pump
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/R507C, optional: R448A
Secondary refrigerant Non-corrosive liquid, aqueous ethanol solution, aqueous glycol solution, heat transfer oil, etc.
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
Level Indicator Adopt glass liquid level indication
Piping material Expansion tank, cold storage tank and circulation pipeline are all made of SUS304
Case material Channel steel + square tube + cold rolled plate sealing plate        Spray
Dimension cm 100*150*185 100*150*185 205*145*205 205*145*205 205*145*175 245*145*205 300*160*225 350*160*205 400*160*225 500*200*225
Power 12kW max 12kW max 28kW max 38kW max 50kW max 61kW max 86kW max 127kW max 167kW max 247kW max
dB within 75 dB within 80 dB within 90 dB
Weight (kg) 800 950 1100 1350 1500 1800 2400 3100 3600 5000

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