Thursday, May 24, 2018

Refrigerated Water Chiller SUNDI -45℃ ~ 300℃

It is important to choose the suitable heat conduction medium, to make sure that system works stably. To choose the suitable medium according to the working temperature of the system is essential. 

type
Temp range℃
Heating  KW
Cooling capacity  KW  AT  ℃
Flow/pressure
L/min bar
Outside size
power
KW
250
100
20
0
-20
-40
SUNDI-555WV
-45+300
5.5
5.5
5.5
5.5
5
2.9
0.9
50
2
550*680*1450
9kw
SUNDI-575WV
-45+300
7.5
7.5
7.5
7.5
7
4.2
1.5
75
2
550*680*1450
11.5kw
SUNDI-5A10WV
-45+300
10
10
10
10
10
6
2
110
2.5
550*680*1450
16kw
SUNDI-5A15WV
-45+300
15
15
15
15
15
11
3.8
110
2.5
750*750*1850
23kw
SUNDI-5A25WV
-45+300
25
25
25
25
25
16
4.7
150
2.5
1000*950*1750
36kw

Type
SUNDI/UST series
Control Mode
Feedback PID + Our special dynamic control calculation, Lneya PLC controller
Temp.control
Material reaction temp.control mode and jacket temp.control mode
Program Editor
10 programs, each program can edit 45 steps.
Communication Portocol
MODBUS RTU Protocol,RS485 interface
Optional  Ethernet interface/R232 interface
Temp.feedback
The temperature of three points: the inlet and outlet of heat-conducting medium, material in reactor(External temperature sensor), PT100 sensor
Material temp. feedback
Material temp. feedbackPT100 or 420mA or communication given
Temp.feedbackPT100
Temp. difference
Set or control oil outlet temp and reactor material temp. difference
Set or control equipment liquid inlet temp. And liquid outlet temp. Difference( keep system safe)
Material temp.accuracy
±1℃ sometimes ±0.5℃
Thermal medium temp. accuracy
±0.5℃
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
Heating max output power
The heater has triple protection and independent temperature limiter to ensure the safety of heating system.
The power is greater than 15KW with a voltage regulator, and the heating power output control adopts 4-20ma linear control.
Cooling capacity
The power of taking away the heat at different temperature
Circulation flow rate and pressure
Lower than 75L/min, use Lneya Magnetic pump
Higher than 75L/min use Ultra wide temperature high energy efficiency centrifugal pump.
Pressure selection: 2bar 3bar 5bar 8barsmall power equipment can not customize
The greater the pressure, the greater the power of the motor, which will increase the system load and reduce the cooling capacity of the system.
compressor
Different type different brand compress
Mitsubishi, skop, Emerson, Danfoss, Italy Dorin, German blog, bizell, French Tecumseh.
evaporator
KAORI Plate heat exchanger
Oil separator
Emerson/Lneya
Drying filter
danfoss/Emerson
Shock tube
CASTEL/packless
voltage-controlled
danfoss/Emerson/fengsheng
Expansion valve
Emerson thermal expansion valve/Emerson electronic expansion valve/danfoss thermal expansion valve.
Select different expansion valves with different temperature and cooling capacity.
Operation panel
Lneya 7-inch touch screenshow temp curve\EXCEL data output
Optional Siemens explosion - proof touch screen.Place the operation panel outside the site area.
optional GMP, FDA operation and record module (operator use record, data record, alarm record, etc.)
Safety protection
Self-diagnosis function; freezer overload protection; high pressure switch, overload relay,thermal protection device, liquid low level protection, high temperature protection and temperature fault protection.
refrigerant
R-404A / R404A R23 mixture/ R404A R23 R14 mixture
interface size
G1/2G3/4G1DN25 DN32 DN40 DN50 DN65 DN80 DN100PN10 RF
Water-cooling W
 With W is water cooled type, lower than -60 degree equipment, you need use 7-25 degree cooled water
Water cooled condenser.
Tube heat exchanger, plate heat exchanger, tube condenser.
packlessshengKAORIJINDIANXIAOLING etc
power
AC 380V 50HZ Three-phase five-wire system.  Small power 220V 50HZ single phase
Optional 460V 60HZ220V 60HZ three-phase  
Shell material
Standard shellSUS 304optional spraying plastics color 7035
Isolation of explosion-proof
optioanlEXdIIBT4)   
Lneya explosion-proof product installation license number.PCEC-2017-B025
Positive pressure explosion-proof
optioanl(EXPXdmbIICT4) The positive pressure system must be water-cooled type
Lneya explosion-proof product installation license numberPCEC-2017-B025
Self pressurizing system
Optional self-pressurized 3bar system, the temperature of the system can be expanded, the expansion tank is normal pressure.
KDOC-80 can be used in a pressurized system with a maximum temperature of 250 degrees (-85 degree ~ 250 degree).
KDOC-220 can be used in the self-pressurized system with maximum temperature to 320 degrees (-50 degree ~ 320 degree).
KDOC-210 can be used in a self-pressurized system with a maximum temperature of 300 degrees (-70 degree ~ 300 degree)
Flow/pressure
Optional flow/pressure sensor, display flow and pressure on the touch screen.
Optional control flow/pressure.
One for two system
Optional one for two systems: the costis lower than one to one system.
One unit heating and cooling machine contains two circulation system, two cooling system, two heating systems, one expansion system, one electrical system.
High exothermic control
Customizable high heat control system algorithm and components.
flow reactor temperature control module.
It can be used in the flow reactor temp control system (pump, internal circulation system, control algorithm, refrigeration)
How to Determine Freezing Water Flow Rate?

A lot of people will ask such a question when they buy a cold water machine -- how do you determine the freezing water flow of a refrigerated water unit? So which aspects should we consider the cold water flow?

1. Water pressure test of the unit in and out of the water pipe.
Detect the pressure value of the in- and out-water, then refer to instruction about the water flow under this circumstance and determine whether the water system is normal by looking at the description in the corresponding table or flow diagram of the unit. This difference is also used to determine which part of the water pipeline has a large resistance and make corresponding rectification plan and action.

2. The air inlet temperature of the compressor should be tested only when the refrigeration operation is carried out.
If the temperature of the water chiller is tested lower than zero after running for 30 minutes, then water flow is not enough on water side heat exchanger which causes evaporation temperature and pressure to fall and cause freon in evaporator flow to the compressor suction duct in evaporation heat. That brings about the fact that the compressor suction temperature below zero. In addition, the evaporation pressure and evaporation temperature caused by low temperature setting should be excluded. However, the low-temperature unit can be considered normal as long as there is 6 ~ 8 ℃ overheat of compressor suction. So under normal water flow, the compressor suction temperature generally will be greater than 0 ℃. Temperature lower than this value should be ruled out water system problems.

3. The current needs to be tested when the pump runs.
By detecting the current of the pump of water chiller and comparing with rated current, you can determine the actual water flow, whether its water flow is big or small. Refer to the parameters above, you can draw an exact water system testing analysis report.

How to Determine Freezing Water Flow Rate?

A lot of people will ask such a question when they buy a cold water machine -- how do you determine the freezing water flow of a refrigerated water unit? So which aspects should we consider the cold water flow?

1. Water pressure test of the unit in and out of the water pipe.
Detect the pressure value of the in- and out-water, then refer to instruction about the water flow under this circumstance and determine whether the water system is normal by looking at the description in the corresponding table or flow diagram of the unit. This difference is also used to determine which part of the water pipeline has a large resistance and make corresponding rectification plan and action.

2. The air inlet temperature of the compressor should be tested only when the refrigeration operation is carried out.
If the temperature of the water chiller is tested lower than zero after running for 30 minutes, then water flow is not enough on water side heat exchanger which causes evaporation temperature and pressure to fall and cause freon in evaporator flow to the compressor suction duct in evaporation heat. That brings about the fact that the compressor suction temperature below zero. In addition, the evaporation pressure and evaporation temperature caused by low temperature setting should be excluded. However, the low-temperature unit can be considered normal as long as there is 6 ~ 8 ℃ overheat of compressor suction. So under normal water flow, the compressor suction temperature generally will be greater than 0 ℃. Temperature lower than this value should be ruled out water system problems.

3. The current needs to be tested when the pump runs.
By detecting the current of the pump of water chiller and comparing with rated current, you can determine the actual water flow, whether its water flow is big or small. Refer to the parameters above, you can draw an exact water system testing analysis report.

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