Hermetic scroll compressor water-cooled water chiller unit

1.two hermetic scroll compressor 2.shell and tube condenser 3.dry-type shell and tube heat exchanger 4.refrigerant: r22

Features of unit

1.application of economizer

 Increase the supercooling degree of liquid refrigerant and improve unit refrigerating capacity

2.reliable functional components

 Adopting newly high efficiency heat exchange tube to make dry expansion evaporator and condenser with high heat transfer efficiency, so it can improve refrigerating capacity of the unit and reduce input power;

 Solenoid valves, oil separators, electric components etc are all world famous brand with high quality and long service life.

3.application of environmental friendly refrigerant

Various refrigerant can be used, like HFC404A, HFC134a and so on

4.various secondary refrigerant can be used

 Glycol water solution, propanediol water solution, ethanol etc, or design the evaporator as an anti-corrosive one, so that Calcium chloride water solution can be used;

5.application of high efficiency oil separator

Reduce lubricant which flow in evaporator, so it can improve the heat transfer efficiency of evaporator

6.application of injection technology

 Injecting liquid refrigerant to the compression chamber of a compressor can reduce discharge temperature efficiently.

Hermetic scroll compressors are adopted, and the main features of the compressors are listed as follows

1.A dual flexible design: to ensure that the seal between the scroll plate;

2.High energy efficiency ratio: the scroll involutes wear in rather than wear out;

3.Lower noise and vibration levels of the sound spectrum, and the soft smooth sound quality;

4.Efficient Teflon bearing;

model			LSQ45D	LSQ60D	LSQ70D	LSQ90D	LSQ115D	LSQ145D
Nominal refrigerating capacity		kW	45	60	70	90	115	145
		Kcal/h ×104	3.9	5.2	6.1	7.8	10.0	12.6
		RT	13	17	20	26	33	41
Power supply			Three phase and Four wire circuit system 380V 50Hz
Nominal input power		kW×number of compressor	4.9×2	6.5×2	7.5×2	10.0×2	13.2×2	16.2×2
compressor	type		Hermetic scroll compressor
	Start-up mode		Direct start
	quantity		2
condenser	type		Shell and tube condenser
	Water quantity	t/h	9.0	12.0	14.0	18.0	23.0	28.0
	pipe diameter	mm	2-DN50	2-DN65	2-DN80	2-DN80	2-DN80	2-DN80
	Water pressure drop	kpa	50-90
evaporator	type		Dry-type shell and tube heat exchanger
	Water quantity	t/h	7.8	10.3	12.0	15.5	19.8	24.0
	pipe diameter		2-Rp2			2-Rp2-1/2
	Water pressure drop	kpa	40-70
	Temperature control		Chilled water temperature control
refrigerant	name		R22
	Control method		Thermal expansion valve
	Refrigerant charge	kg	5.0×2	6.5×2	8.0×2	10.0×2	13.0×2	16.0×2
lubricant	type		(3GS)
Overall dimension	length	mm	1650	1950	1950	1950	2500	2800
	Width	mm	670	730	730	730	730	700
	height	mm	1210	1235	1235	1280	1500	1500
Noise level		dB(A)	65	66	66	67	67	68
weight		kg	300	340	380	550	680	790

Hermetic scroll compressor water-cooled water chiller unit