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Home > Chillers Series > Screw Industrial Refrigerating Machine - 2

Screw Industrial Refrigerating Machine - 2

Author：niasi Date：2014-6-11 2:04:58 PM Source:en.dgniasi.cn

Features of the Water cooled screw compressor type：
1、Industrial water chiller world-brand compressor:Imported double screw series compressor. Double screw with gear ratio5:6 and advanced linear design. Energy-saving and high efficiency. Energy control  can achieve the classification or non-classification energy control. With balanced design, the running is quiet and steady. The moving parts are dealt with strictly. Special design of the oil balanced block in the exhaust place.  Long maintenance circle.  Running with faults for more than 40000hours. Effective oil filter,its oil capacity brought out by the exhaust is less than 1.5%. It can effectively improve the two machines exchanging heat,saving more energy and durable.
2、Industrial water chiller new and high effective evaporator: High effective inner grooved crooved copper can increase the heat transmission effect and it is energy-saving and of high efficiency.  Using the latest CAD/CAM design processing technology and complete the CNC processing center manufacturing. Compact structure,small volume and durable.  Heat-exchange tube bundle  with U structure can clean the incrustation on the whole,easy to maintain. Dry evaporator, easy for oil recycling and improves its working life and reliability.
3、 water chiller condenser using the latest efficient external threadcopper pipe; big heat dissipating capacity, small size. Using the latest CAD/CAMmachining technology, cooperate with the CNC machining center; with compactstructure, high reliability, good appearance, high efficiency and energy-savingability.

4、Industrial water chiller air cooled condenser: Air-cooled condenser has highentire piercing with reliable sheet turning quality. Secondary flanging, copperpipe and fin closely contact with high thermal efficiency.Adoptimported copper tube and auto bend welding; Greatly enhance the oxygentightness, get rid of the refrigerant leakage phenomenon; Especially suitablefor water shortage or high hardness of water quality. 

5、Industrial water chiller microprocessing control system: Industrial PLC set central control; cooperate with the energy condenser.It can be timely and accurately control  the unit refrigerating capacity and the cooling load matching, guarantee the unit running at optimum efficiency, reducing the operation cost. Internal integration with water, low temperature, high and low voltage, antifreeze, lack of phase, delaying start, the inverse phase, overload, motor overheating, and poor hydraulic multiple security protection and processing functions

Technical Parameters：

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Single Compressor Series
Double Compressor Series 三压缩机系列
Parameters
Model
NL-
40WSS
NL-
60WSS
NL-
80WSS
NL-
120WSS
NL-
160WSS
NL-
180WSS
NL-
240WSS
NL-
80WSD
NL-
120WSD
NL-
160WSD
NL-
240WSD
NL-
320WSD
NL-
480WSD
NL-
540WST
NL-
600WST
Rated cooling Capacity50HZ
Btu/h
513807
706698
947385
1402813
1867458
2116680
2852738
1027614
1413396
1894770
2805625
3734916
5705477
6350040
6997334
Kcal/h
129407
177988
238607
353310
470335
533104
718487
258813
355976
477214
706621
940671
1436973
1599312
1762339
KW
150.5
207
277.5
410.9
547
620
835.6
301
414
555
821.8
1094
1671.2
1860
2049.6
usrt
42.8
58.9
78.9
116.8
155.5
176.3
237.6
85.6
117.7
157.8
233.7
311.1
475.2
528.9
582.8
Input power supply
 ~380V/3PHASE/ 50HZ
Input power
kw
29.9
39.9
53
77
100.3
110.9
159.9
59.8
79.8
106
154
200.6
319.8
332.7
366.6
Cooling flow control
 Thermostatic Expansion Valve   Electronic Expansion Valve (optional)    
Cooling media
 R22/407C/134A
Condensorpatterm Semi-hermetic Screw Compressor
Quantity 1
1
1
1
1
1
1
2
2
2
2
2
2
3
3
Condensor
patterm
 High Effective Inner Grooved Copper Shell and Pole
Quantity
 1
1
1
1
1
1
1
2
2
2
2
2
2
3
3
The pressure loss of the cooling water
KPa
40
40
40
50
50
50
50
50
50
50
60
60
60
60
60
Flow freezing waterM3/h
30.9
42.3
56.7
83.6
110.0
123.3
170.7
61．9
84.7
113.3
167.3
221.9
341.3
375.9
414.2
Evaporator
pattermHigh effective inner grooved copper shell and pole
Quantity 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Flow freezing water
M3/h
25.8
35.5
47.6
70.4
93.8
106.3
143.2
51.6
71.0
95.1
140.9
187．5
286.5
318.9
351.4
Temp. Controller
   German XIMENZI high effective inner grooved copper shell and pole
Safety Device
 High/low voltage switch. Exhausting overheat protection,fusible plug,anti-freezing temperature controller,compressor Heat Protector,overcurrent relay,phase sequence protector/Lack phase protector, oil pressure protector.
Machine Weight
KG
750
900
1280
1800
2200
2700
3400
1400
1700
2500
3500
4200
6500
6800
7000
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