Water Cooled Screw Chiller

Water Cooled Screw Chiller is an efficient and reliable industrial chiller unit, with its main components featuring a screw compressor, hence referred to as water-cooled screw chiller. It utilizes a screw compressor and water-cooling heat dissipation method, providing excellent refrigeration capacity and stable performance. The chiller is equipped with a cooling tower or a cooling water circulation system, which utilizes external cooling water for heat dissipation, meeting a wide range of industrial demands. With a wide temperature control range and refrigeration capacity, it can precisely control temperatures between 3°C to 50°C, making it suitable for industries such as plastic processing, chemical, pharmaceutical, and others. Water Cooled Screw Chiller chillers are the ideal choice in the field of industrial cooling, ensuring stable operation of equipment and processes.

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 Application Scope in the Industry

Water Cooled Screw Chillers have extensive applicability in industrial settings. They are used in industries such as plastics (injection molding, extrusion), plastic packaging, automotive manufacturing, electronics manufacturing, electroplating, pharmaceuticals, chemicals, ultrasonic cooling, printing, and others. They maintain stable operating temperatures for equipment and processes, thus improving production efficiency. Water-cooled screw chillers are typically suitable for large-scale cooling requirements in production and processing equipment. They are widely used in industries such as plastic processing (injection molding, extrusion), meeting various process cooling needs, greatly enhancing the production efficiency and product quality of plastic molding machines.

Injection Molding Industry	Extrusion Industry	Plastic Packaging Industry
Pharmaceutical Industry	Automotive Manufacturing Industry	Chemical Engineering Industry
Electroplating Industry	Electronics Industry	Printing Industry

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 Highlights of the Product

Semi-hermetic Screw Compressor

With low noise and vibration levels, it achieves energy savings of over 20%.

The water-cooled screw compressor utilizes a semi-hermetic screw compressor, offering advantages such as stability, reliability, low noise, and low vibration. During the compression process, gas enters the compression chamber from the suction end of the screw, and as the screw rotates, the gas is gradually compressed and eventually discharged through the exhaust end. The thread shape and rotational motion of the screw ensure the continuity and stability of the gas during the compression process. Bitzer or Hanbell, two globally renowned brands, provide the screw compressors used in the Xiecheng water-cooled screw compressor, ensuring long-lasting, efficient, and stable operation. Compared to traditional scroll compressors, it achieves energy savings of over 20%, resulting in more energy-efficient operation.

Features：1. 20% Energy Saving     2. low Noise     3. Low Vibration

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 Stepless Capacity from 25% to 100%

Screw compressors feature stepless capacity control, which means that a single compressor can continuously adjust the cooling capacity in any range between 25% to 100%. This allows for precise control of energy output, ensuring stable and efficient operation.

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 Shell and Tube Evaporator

The Water Cooled Screw Chiller utilizes a shell and tube evaporator. In this system, the refrigerant evaporates inside the heat exchange tubes, while water flows on the shell side. To enhance the heat exchange efficiency, a 2mm thick baffle plate is installed on the shell side, causing the water to flow back and forth to create ice brine. Additionally, to maintain a stable operating temperature, the exterior shell of the evaporator is covered with insulation material.

For the heat exchange tubes, we employ high-efficiency seamless copper tubes. These tubes undergo a grooving process to form internal thread fins, thereby increasing the heat exchange surface area with the refrigerant. With this technology, the heat transfer area is doubled, significantly improving the heat transfer efficiency.

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 Shell and Tube Condenser

Water Cooled Screw Chiller utilizes a shell and tube condenser, with the internal copper tubes employing an outer thread embossing process. This design effectively enhances the heat exchange efficiency between the refrigerant and water during the process. Compared to traditional smooth copper tubes, the outer thread embossing process increases the surface area of the copper tubes, thereby expanding the contact area for heat exchange and improving the thermal conductivity of the condenser. This optimization design allows the condenser of the water-cooled chiller to transfer heat from the refrigerant to the water more rapidly and consistently, enabling the water to carry away the heat.

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 RS485 Remote Communication System

Equipped with RS485 communication capability, this feature enables the integration of the water-cooled screw chiller and plastic molding machine into a single data platform, enabling automated remote management.

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 Variable Frequency Drive System (optional)

Highly efficient and energy-saving, utilizing world-class onboard variable frequency drive technology, which greatly enhances the partial load energy efficiency of the unit. The highest integrated part load value (IPLV) can reach around 10.

Advantages of VFD System 1. High efficiency and energy savings of over 30%. 2. ABB VFD enables seamless and stepless adjustment from 1% to 100%. 3. Soft start feature reduces startup current impact, while the built-in DC reactor minimizes harmonic interference.

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 Product Details

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 Specifications

Model		UNIT	XC-L30WS	XC-L40WS	XC-L50WS	XC-L60WS	XC-L80WS	XC-L100WS
Refrigerating capacity		kw	91	142.5	186.5	200.1	248.6	375
		kcal/h	78260	122550	160390	172086	213796	322500
Input Power		Kw	22	30	37	45	60	37x2
Control type			expansion valve
Refrigerant			R22（R407C）
Compressor	Type		Semi-hermetic Screw
	Quantity		1/2/4
	Startup mode		Y-△
	Capacity control(%)		0-25-50-75-100
Power			3PH-380V/50HZ（200V/220V/415V   50HZ/60HZ）
Evaporator	Type		Shell and tube type
	Cooling water flow（m3/h）		19	21	26	30	39	55
	Inet and outlet pipe caliber(Inch)		3"	3"	3"	3"	4"	4"
Condenser	Type		Shell and Tube Type
	Cooling water flow（m3/h）		21	26	33	40	45	69
	Inet and outlet pipe caliber(Inch)		3"	3"	3"	4"	4"	4"
Safety protector			High and low pressure protection,overload protection,overtemperature protection,phase sequence protection,etc.
Dimensions(L*W*H)		mm	2145*800* 1670	2340*800* 1670	2340*800* 1670	2580*800* 1720	3130*900* 1860	3340*1300* 1450

Model		UNIT	XC-L120WS	XC-L160WS	XC-L180WS	XC-L240WS	XC-L280WS	XC-L320WS
Refrigerating capacity		kw	406	537.1	565.2	876	1106	1230
		kcal/h	349160	461906	486072	753360	951590	1057800
Input Power		Kw	45x2	60x2	67.5x2	90x2	105x2	120x2
Control type			Expansion valve
Refrigerant			R22（R407C）
Compressor	Type		Semi-hermetic Screw
	Quantity		1/2/4
	Startup mode		Y-△
	Capacity control(%)		0-25-50-75-100
Power			3PH-380V/50HZ（200V/220V/415V   50HZ/60HZ）
Evaporator	Type		Shell and tube type
	Cooling water flow（m3/h）		68	86	96	136	150	168
	Inet and outlet pipe caliber(Inch)		4"	4"	6"	6"	6"	6"
Condenser	Type
	Cooling water flow（m3/h）		85	108	122	170	186	220
	Inet and outlet pipe caliber(Inch)		4"	4"	4"x2	4"x2	5"x2	5"x2
Safety protector			High and low pressure protection,overload protection,overtemperature protection,phase sequence protection,etc.
Dimensions(L*W*H)		mm	3340*1300* 1500	3880*875* 1850	3910*875* 1950	3670*1330* 2130	4250*1320* 2150	4350*1320* 2150

Model		UNIT	XC-L360WS	XC-L440WS	XC-L500WS	XC-L560WS	XC-L640WS	XC-L720WS
Refrigerating capacity		kw	1385	1753	1890	2130	2570	2891
		kcal/h	1030280	1575800	1625400	1831800	2210200	2486260
Input Power		Kw	135x2	165x2	187x2	210x2	240x2	270x2
Control type			Expansion valve
Refrigerant			R22（R407C）
Compressor	Type		Semi-hermetic Screw
	Quantity		1/2/4
	Startup mode		Y-△启动
	Capacity control(%)		0-25-50-75-100
Power			3PH-380V/50HZ（200V/220V/415V   50HZ/60HZ）
Evaporator	Type		Shell and tube type
	Cooling water flow（m3/h）		206	240	273	308	337	412
	Inet and outlet pipe caliber(Inch)		8"	8"	10"	10"	10"	10"
Condenser	类型 Type
	Cooling water flow（m3/h）		252	294	334	372	416	506
	Inet and outlet pipe caliber(Inch)		6"x2	6"x2	6"x2	6"x2	8"x2	8"x2
Safety protector			High and low pressure protection,overload protection,overtemperature protection,phase sequence protection,etc.
Dimensions(L*W*H)		mm	4450*1580* 2230	4900*1600* 2350	4950*1760* 2360	5010*1760* 2360	4310*2350* 2630	4310*2350* 2750