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SUNDIZ Variable Frequency Series

SUNDIZ Variable Frequency Series

APPLICATIONS

Compared with SUNDI refrigeration system, the circulation system adopts variable frequency control, which saves more than 20% energy, reduces noise by more than 5 decibels, and has a small starting current compared to old products.

By increasing the frequency, the refrigeration power is increased and the cooling rate is improved by frequency conversion control of the circulation pump.

SUNDIZ -45℃~250℃

 

 Model SUNDIZ4-3
SUNDIZ4-3W
SUNDIZ4-5
SUNDIZ4-5W
SUNDIZ4-10
SUNDIZ4-10W
SUNDIZ4-15W SUNDIZ4-20W SUNDIZ4-30W
Temperature range -45℃~250℃
Heating power 5.5kW 7.5kW 15kW 25kW 38kW 60kW
Cooling  capacity  kW 250℃ 5.5kW 7.5kW 15kW 25 kW 38kW 60kW
20℃ 5.5kW 7.5kW 15 kW 25kW 38kW 60kW
-15℃ 2.3kW 3.6kW 7.5 kW 11kW 15kW 33kW
-35℃ 0.9kW 1.5kW 3.3 kW 5kW 6.5kW 10kW
Medium temp control accuracy ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃
Process temp control accuracy ±0.3℃ ±0.3℃ ±0.3℃ ±0.3℃ ±0.3℃ ±0.3℃
Pump flow rate  pressure max 50L/min 50L/min 100L/min 150L/min 250L/min 400L/min
2bar 2bar 2bar 2.5bar 2.5bar 2.5bar
Refrigerant R-404A / R507C Optional R448
Interface size G3/4 G3/4 G1 DN32 PN10 DN40 PN10 DN50 PN10

 

SUNDIZ -80℃~250℃

 

 Model SUNDIZ8-3W SUNDIZ8-4W SUNDIZ8-6W SUNDIZ8-10W SUNDIZ8-15W
Temperature range  -80℃~250℃
Heating power 3.5kW 5.5kW 7.5kW 10kW 15kW
Cooling  capacity  kW 250℃ 3.5kW 5.5kW 7.5kW 15 kW 20kW
20℃ 3.5kW 5.5kW 7.5 kW 15kW 20kW
-60℃ 1.3kW 1.8kW 3 kW 5.5kW 8kW
-75℃ 0.4kW 0.6kW 1 kW 1.8kW 2.7kW
Medium temp control accuracy ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃ ±0.1℃
Process temp control accuracy ±0.3℃ ±0.3℃ ±0.3℃ ±0.3℃ ±0.3℃
Pump flow rate  pressure max 35L/min 50L/min 100L/min 150L/min 250L/min
2bar 2bar 2bar 2.5bar 2.5bar
Refrigerant R-404A / R508B

 

Common configuration

 

System pressure display The pressure of the refrigeration system and circulation system is detected by pressure sensors and displayed on the touch screen
Controller Siemens S7-1200 PLC, fuzzy PID control algorithm, equipped with process dynamic control algorithm
Temperature control Thermal medium outlet temperature control mode, external temperature sensor: (PT100 or 4-20mA or communication
given) control mode (process dynamic control algorithm)
Programmable 25 programs, each program can edit 85 steps
Communication Protocol Ethernet interface TCP/IP protocol, RS485 interface, MODBUS protocol
Internal temp feedback Equipment thermal conductivity medium outlet temperature, medium inlet temperature, refrigeration system condensation
temperature, compressor suction temperature, cooling water temperature (for water-cooled equipment)
External temp feedback Pt100 or 4-20mA or communication given
During cascade control
Temp difference control
function
The temp difference between the outlet temp of the thermal oil and the external temp sensor can be set and controlled
The temp difference between the inlet and outlet of the equipment can be set and controlled to ensure system safety
Closed circulation
system
The whole system is 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 supply oil automatically at low temperature.
Heating Refers to the maximum heating output power of the system (according to each model)
The heater has triple protection and an independent temperature limiter to ensure the safety of the heating system
Using a voltage regulator to control the heating output and reduce the output current of the heater during process temperature control
External circulation Flow pressure Brand magnetic drive variable frequency pump
Compressor Emerson, Mitsubishi and other variable frequency compressors
Frequency converter Famous brands such as ABB
Evaporator 316L Plate Heat Exchanger
Refrigeration accessories Danfoss/Emerson accessories (dry filters, oil separators, high and low pressure protectors, expansion valves)
Operation panel Lneya customized 7-inch color touch screen, temperature curve display \ EXCEL data export
Safety protection Multiple self-diagnosis function; freezer overload protection; high/low pressure switch; overload relay, thermal protection device etc
Water-cooled condenser Plate Heat Exchanger
Shell material Cold rolled sheet (standard color 7035)
Power 380V 50HZ / 460V 60HZ

Ultra high temperature cooling technology can directly cool from a high temperature of 300℃[because only the heat transfer medium in the expansion chamber contacts with oxygen in the air (and the temperature of the expansion tank is between normal temperature and 60℃), which can reduce the risk of heat transfer medium being oxidized and absorbing water in the air. At high temperature, no heat conducting medium evaporates, and continuous temperature control of – 80℃ ~ 190℃, – 70℃ ~ 220℃, – 88℃ ~ 170℃, – 55℃ ~ 250℃ and – 30℃ ~ 300℃ can be realized without pressurization.

1. Displays all the kind of process control temperatures.
2. Shows the liquid level of the heat conducting medium in the expansion vessel.
3. Shows indication for refrigeration system working.
4. Shows indication for heater working.
5. Shows indication for circulation pump working.
6. Displays the temp. control ( materials temp. control pattern, heat conducting medium temp. control ).
7. The temp. upper limit, lower limit control can be set.
8. The temp. difference between jacket & reactor material can be set.
9. Shows the alarm to add the liquid when it is empty.
10. The refrigeration compressor can be set to operate manuallyor automatically.

APPLICATIONS

New materials | Special gas production temperature control

API | intermediate production temp control solution

Distillation concentration temperature control solution

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