50ton Siemens PLC Control Water Cooled Screw Chiller
Applicattion areas of MGREENBELT water chiller
Water cooled chiller used in industrial production line cooling system very well. It can precisely control the exactly temperature , which requested by the modernized machinery production, and greatly improved the production efficiency and product quality.
MGREENBELT Industrial chiller is a good partner for the modernized industry , which feather as easy to operate with reasonable design, high quality and complete range of specifications.
1. MGREENBELT water cooled chiller general introduction
a)Low Noise, without fans
b)High Efficient and Energy Saving by cooling tower good cooling efficiency
c)Easy Operation and Installation
d)Compact Exterior
e)High quality
f)Competitive price
g)CE certificated
2. MGREENBELT water chiller protection devices
1)Phase sequence protection,
2)Phase lack protection,
3)Overload & overheat protection,
4)Exhuast air temp. protection,
5)Low & High pressure protection,
6)Ultra Low temp. protection,
7)Water flow protection
3. MGREENBELT water cooled chiller details:
As a water chiller top manufacturer, this water cooled screw chiller has the following features. Chiller
Well-known Brand Compressor
Unit adopts Germany BITZE or Taiwan HANBELL brand semi-hermetic screw compressor. The latest 5 to 6 patented screw rotor profile with excellent efficiency.
Adjustable infinite or closely stepped capacity control, features energy efficient, stable and quiet running.
Most advanced patented highest precision manufacturing process.
Built-in full intelligent monitoring and protection including thermal motor temperature monitoring, phase sequence monitoring, manual reset lock-out, oil temperature sensor.
Wide range of refrigerant for option, including R134A, R407c and R22(R404A, R507c upon request).
Microprogramming Control System
Industrial PLC centralized control combined with compressor capacity control system, precisely monitor.
Integrated protection for low temperature, high/low pressure, anti-freezing, phase missing, anti-phase, overload, motor over temperature, oil differential, flow switch, start up latency.
Optional operation language, menu leading, unit running state easy to adjust.
Easy Installation, Reliable Running
Closely stepped start-up, minimize impact to electricity.
Steady and safe running, low vibration, easy for installation.
Compact structure, less space demand and light in weight, easy for transport and installation.
Completely wired, inspected and tested pre-delivery, saving installation time and cost.
4. Water cooled chiller structure
5. chilled water cooling system
6. Water cooled Chiller pictures
Mgreebelt chiller got CE, UL, SABER, CS certificate to different market.
7. MGREENBELT factory production lines of testing every chiller
(1)Pressurization and helium leak detection of refrigeration circuit
(2)Pressurization and leak testing of fluid circuit
(3)Chiller performance and power consumption at full load
(4)Proper operation of all controls, safety devices, and alarms
(5)Electrical tests according to standards
8. Water cooled chiller parameter
1). Shell and tube evaporator and condenser, high efficient thread red copper tube (material change on request).
2). Siemens PLC control, LCD touch screen interface, easy operation, Standard design charged.
3). R22, CFC free R407c, R134a for option.
4). 380V-415V-480V/50/60HZ, 3PH for standard design. Chiller unit can be supplied according to diffierent requirements.
| Water Cooled Screw Chiller(Single compressor) |
| Model |
MG-30WS |
MG-40WS |
MG-50WS |
MG-60WS |
MG-70WS |
MG-80WS |
MG-90WS |
MG-100WS |
MG-110WS |
| Cooling capacity |
+7ºC |
RT/tons |
25.1 |
34.2 |
44.9 |
48.9 |
59.6 |
77.1 |
81.4 |
89.1 |
96.4 |
| Kcal/h |
75938 |
103458 |
135794 |
147834 |
180256 |
233060 |
246304 |
269524 |
291712 |
| KW |
88.3 |
120.3 |
157.9 |
171.9 |
209.6 |
271 |
286.4 |
313.4 |
339.2 |
| Power supply |
3PH-380V-50Hz |
| Refrigerant |
Type |
R22 |
| Control |
Thermostatic expansion valve |
| Compressor |
Type |
Semi-hermetic screw |
| Power(kw) |
21.4 |
28.2 |
35.4 |
38.8 |
47.2 |
57.9 |
60.9 |
67 |
73.1 |
| Start |
Y-△ |
| Capacity |
25-50-75-100(%) or 25-100(%) |
| Evaporator |
Type |
Shell and tube |
| Water flow(m³/h) |
15.1 |
20.6 |
27.1 |
29.5 |
35.9 |
46.5 |
49.1 |
53.7 |
58.1 |
| Dia.of inlet/outlet(inch) |
DN50 |
DN65 |
DN80 |
DN80 |
DN80 |
DN100 |
DN100 |
DN100 |
DN100 |
| Condenser |
Type |
Shell and tube |
| Water flow(m³/h) |
20.7 |
28 |
36.5 |
39.7 |
48.4 |
62 |
65.5 |
71.7 |
77.7 |
| Dia.of inlet/outlet |
DN50 |
DN65 |
DN80 |
DN80 |
DN80 |
DN100 |
DN100 |
DN100 |
DN100 |
| Protection System |
Compressor overheatprotection, high/low pressure protection,phase missing/ |
| sequence protection, flow rate protection, anti-frozen protection. |
| Dimension |
L |
2300 |
2500 |
2500 |
2500 |
2800 |
3200 |
3200 |
3500 |
3500 |
| W |
750 |
750 |
750 |
750 |
800 |
800 |
800 |
900 |
900 |
| H |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1500 |
1800 |
| Noise |
dB |
73.1 |
73.7 |
74.8 |
78.4 |
79 |
79.6 |
80.4 |
80.4 |
83.1 |
| Weight |
kg |
660 |
800 |
1000 |
1200 |
1400 |
1600 |
1800 |
2000 |
2200 |
| Double Compressor Water Cooled Screw Chiller( 5C to 35C) |
| Model |
MG-60WSD |
MG-80WSD |
MG-100WSD |
MG-120WSD |
MG-140WSD |
MG-160WSD |
MG-170WSD |
MG-180WSD |
MG-200WSD |
MG-220WSD |
| Cooling capacity |
USRT |
+7ºC |
50.2 |
68.4 |
89.8 |
100.7 |
119.2 |
138.2 |
154.1 |
162.9 |
178.2 |
192.9 |
| Kcal/h |
151876 |
206916 |
271588 |
304440 |
360512 |
417960 |
466120 |
492608 |
539048 |
583424 |
| KW |
176.6 |
240.6 |
315.8 |
354 |
419.2 |
486 |
542 |
572.8 |
626.8 |
678.4 |
| Power supply |
3PH-380V-50Hz |
| Refrigerant |
Type |
R22 |
| Control |
Thermostatic expansion valve |
| Compressor |
Type |
Semi-hermetic screw |
| Power(kw) |
42.8 |
56.4 |
70.8 |
85.3 |
94.4 |
109.6 |
105.8 |
121.8 |
134 |
146.2 |
| Start |
Y-△ |
| Capacity |
25-50-75-100(%) or 25-100(%) |
| Evaporator |
Type |
Shell and tube |
| Flow(m³/h) |
30.3 |
41.2 |
54.1 |
60.7 |
71.9 |
83.3 |
92.9 |
98.2 |
107.5 |
116.3 |
| Dia.of pipe |
DN80 |
DN100 |
DN100 |
DN100 |
DN125 |
DN125 |
DN125 |
DN150 |
DN150 |
DN150 |
| Condenser |
Type |
Shell and tube |
| Water flow(m³/h) |
41.4 |
56 |
72.9 |
82.6 |
96.9 |
112.3 |
122.2 |
131 |
143.5 |
155.5 |
| Dia.of pipe |
DN80 |
DN100 |
DN100 |
DN100 |
DN125 |
DN125 |
DN125 |
DN150 |
DN80*2 |
DN100*2 |
| Dimension |
L |
2500 |
2500 |
3500 |
3500 |
4000 |
4000 |
4000 |
4000 |
4000 |
4000 |
| W |
900 |
900 |
900 |
900 |
900 |
1000 |
1000 |
1000 |
1400 |
1400 |
| H |
1500 |
1500 |
1500 |
1500 |
1500 |
1800 |
1800 |
1800 |
1600 |
1600 |
| Noise |
dB |
73.1 |
73.7 |
74.8 |
78.4 |
79 |
79.2 |
79.6 |
80.4 |
80.4 |
83.1 |
| Weight |
kg |
1500 |
1800 |
2200 |
2500 |
2700 |
3000 |
3500 |
3600 |
3800 |
4000 |
FAQ
Q1: What information do you need to provide in order to get a quotation?
A1: For industrial water chiller we need to know the following information in order to suggest the suitable water chiller models and for providing the quotation.
-Air cooled or water cooled?
-Cooling Capacity,___Tons,___KW,___Kcal___BTU
-Power Supply_V_Phase_hz
-Refrigerant,R22 or friendly R410a,R407C
-Chilled water outlet temperature.
-Evaporator need pipe coil type or shell and tube type.
-With water pump and water tank or not.
-Order Quantity etc.
Q2:How does a chiller system work?
A2:Chiller has two circulation,one is process water circulation,the other is refrigerant gas circulation.Heat picked up from the process.Heat transfers to refrigerant circulation.Heat is remove to air or water.
Q3.How to calculate cooling capacity for chillers
Cooling Capacity(kw)= Flow Rate(m3/h)*Temp Change(T1-t2)/0.86
Heat Load= C(specific heat)* M(quality output per hour )*Temp Change(T1-T2)
Q4:Cooling capacity unit conversion?
1 USRT = 3.517 kW,
1 kW = 0.28434 USRT;
1 kcal/h = 3.968 Btu/h,
1 Btu/h = 0.252 kcal/h;
1 USRT = 3024 kcal/h,
1 kcal/h = 1.163W,
1 Btu/h = 0.2931W,
Q5:The chiller Warranty.
A5: 12 months warranty, if there are problems with the machine parts. We provide free accessories
and delivery to customers.
As a professional industrial chiller manufactuer and solution provider , we can supply kinds of chillers to meet your different cooling requirement, if the chillers above is not workable for you, please feel free send needs to us directly.
Contact Person: Libra Zhang
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