Nech Series Closed Circuit Cooling Tower with Aluminium Alloy Fan

• Customization: Available
• Warranty: 2 Years
• Cooling Method: Cross Flow
• Model NO.: NECH
• Ventilation Mode: Mechanical Ventilation
• Material: Aluminum Zinc
• Air Contact Form: Wet and Dry
• Air Contact Way: Closed
• Tower Shape: Square
• Noise Level: Low
• Application Fields: Industrial
• Certification: UR, ISO
• Fan: Aluminium Alloy
• Protection Level: IP55/ IP65, Insulation Class F
• Power Supply: 380-415V/ 3p/ 50-60Hz
• Structure/ Case Material: Hdgs/ SUS
• Coil Material: Cooper/ SUS
• Transport Package: Wood Packing
• Specification: CE, UL, CTI
• Trademark: NEWIN
• Origin: Shenzhen China
• HS Code: 841989
• Production Capacity: 1000sets/Month

Product Description

Introducing the NECH Series Evaporative Condenser/Closed Cooling Tower - a pinnacle of cutting-edge technology and efficient cooling solutions.
NECH The NECH Series stands out as a prominent model in the realm of evaporative condensers. Distinguished by its innovative mixed flow heat transfer system, this design showcases the vertical crossflow direction of air and refrigerant steam. Such an ingenious configuration ensures that the air permeates uniformly through the condenser, resulting in significantly enhanced heat exchange efficiency, making it an ideal choice for modern cooling requirements.

Advantages

 

· Experience unparalleled performance with our mixed flow heat transfer, delivering superior condensation efficiency for optimal cooling results!
Designed with precision, the vertical cross-flow direction ensures even air distribution through the condenser, achieving efficient and consistent heat transfer.

· Enhanced secondary heat transfer technology boosts cooling efficiency to new heights, making every drop count.

Ingeniously crafted, the spray water first exchanges heat with the coil, then undergoes a secondary transformation through the PVC heat exchange layer. This meticulous process culminates in water collection for recycling, dramatically enhancing cooling efficiency.

· Innovative closed circuit system for superior energy savings and environmental care, designed to meet modern sustainability standards.

The refrigerant, in its gaseous state, circulates within a closed coil, ensuring cleanliness, reducing water consumption and maintenance costs, and extending the equipment's service life.

· Ingenious compact structure design offers high strength, convenience, and unmatched utility.

Occupying minimal space, our design ensures ease of shipment, effortless installation, and simplified maintenance, making it the ideal choice for streamlined operations.

 

Work Principle

When the state-of-the-art NECH evaporative condenser begins its operation:
The condensing coil serves as the primary conduit for refrigerant steam. This innovative system transforms refrigerant steam into liquid by expertly evaporating it and absorbing the heat through a sophisticated water spraying technique. Spray water elegantly flows through the coil unit and is then channeled into a highly efficient PVC heat exchange system, where it continues secondary heat transfer processes. Simultaneously, the cutting-edge axial flow fan delivers robust power, inducing air to create a cross-flow pattern inside the condenser, ensuring optimal heat exchange with the refrigerant steam, culminating in superior and efficient condensation performance.

Series	Type	Capacity	Fan Drive System	Condensation	Secondary Heat Transfer
NECH	Mixed Flow	Range	Axial Flow fans	Condensing coil	PVC heat exchange layer
	Allows the air flow evenly through the condenser.	240~2000kw	Provides power, causing the air to form a cross flow inside the condenser and exchange heat with the refrigerant steam.	The main channel of refrigerant steam.	Spray water flow into PVC layer and secondary heat transfer.
Mixed flow heat exchange,  Closed circuit system	High efficiency, Energy-saving and Environmental protection
Application	Refrigeration, Air conditioning, Chemical industry, Medicine, Food and other fields. Especially in situations with limited space or requiring efficient and compact heat transfer equipment.

Parameter

Table 1. Technical Specification

Item	Heat Rejection Capacity (KW)	Dimension (mm)					Axial Fan			Spray Pump			NH3  Ammonia Charge (kg)	Weight (kg)
Model		Length		Width	Height		Air Volume (m³/h)		Power (Kw)x Qty	Flow (m³/h)	Power (Kw)
NECH-240	240	2500	1970			2263	32000	1.1*2		32.5		1.5	25	3050
NECH-320	320	2500	1970			2263	32000	1.1*2		32.5		1.5	37	3360
NECH-400	400	3100	1970			2395	48000	1.1*3		45		2.2	39	3680
NECH-480	480	3100	1970			2395	48000	1.1*3		45		2.2	48	4050
NECH-560	560	3100	1970			2890	48000	1.1*3		58		2.2	60	4980
NECH-640	640	3100	1970			2890	48000	1.1*3		58		2.2	71	5180
NECH-800	800	3100	1970			2890	48000	1.1*3		58		2.2	83	6200
NECH-1000	1000	3840	2340			3120	64000	1.1*4		89		4	98	7610
NECH-1200	1200	4350	2340			3645	80000	1.5*4		100		5.5	110	10250
NECH-1400	1400	4350	2340			3645	80000	1.5*4		130		5.5	158	11230
NECH-1600	1600	4350	2340			3645	80000	1.5*4		130		5.5	161	13200
NECH-2000	2000	5630	2340			3890	120000	2.2*4		172		7.5	197	14730

Table 2. Heat Emission Correction Index for R717

Condensing Temp. (°C)	Air Inlet Wet Bulb Temp. (°C)
	18	19	20	21	22	23	24	25	26	27	28	29	30
30	1.40	1.51	1.63	1.79	1.99	2.24	2.56	3.00
32	1.18	1.25	1.32	1.43	1.55	1.70	1.88	2.11
34	1.02	1.07	1.12	1.19	1.28	1.36	1.48	1.61	1.80	2.06
35	0.95	0.99	1.03	1.08	1.15	1.23	1.30	1.39	1.53	1.69	1.90	2.15	2.47
36	0.89	0.92	0.96	1.01	1.07	1.13	1.20	1.28	1.39	1.53	1.70	1.91	2.17
38	0.78	0.81	0.83	0.86	0.90	0.94	0.99	1.05	1.12	1.21	1.31	1.44	1.59
40	0.70	0.72	0.74	0.76	0.80	0.83	0.87	0.91	0.96	1.02	1.09	1.18	1.29
42	0.63	0.64	0.66	0.68	0.71	0.74	0.76	0.80	0.84	0.88	0.93	0.99	1.06
44	0.56	0.58	0.59	0.61	0.63	0.65	0.67	0.70	0.76	0.76	0.79	0.83	0.86

Table 3. Heat Emission Correction Index for R22 & R134a

Condensing Temp. (°C)	Air Inlet Wet Bulb Temp. (°C)
	10	12	14	16	18	19	20	21	22	23	24	25	26	28
29	0.86	0.94	1.03	1.15	1.37	1.43	1.55	1.68	1.92	2.10	2.52	3.10
31	0.77	0.83	0.90	0.99	1.10	1.17	1.24	1.34	1.47	1.62	1.83	2.10	2.48
33	0.69	0.73	0.79	0.86	0.94	1.00	1.02	1.10	1.20	1.28	1.40	1.56	1.75	2.38
35	0.62	0.66	0.70	0.76	0.83	0.86	0.90	0.93	1.00	1.07	1.18	1.25	1.38	1.68
37	0.57	0.60	0.63	0.67	0.72	0.76	0.78	0.82	0.85	0.90	0.96	1.02	1.10	1.30
39	0.55	0.57	0.59	0.62	0.65	0.68	0.70	0.72	0.75	0.79	0.84	0.88	0.95	1.10
41	0.48	0.49	0.52	0.54	0.57	0.59	0.61	0.63	0.66	0.68	0.71	0.75	0.78	0.90
43	0.44	0.46	0.48	0.50	0.52	0.54	0.55	0.57	0.59	0.61	0.63	0.66	0.68	0.75
45	0.41	0.42	0.44	0.46	0.48	0.49	0.50	0.52	0.53	0.55	0.56	0.58	0.61	0.66

Instructions for Selection
1. Begin by confirming both the condensing temperature and the wet bulb temperature.
2. Proceed to calculate the total amount of heat abstraction that is transferred through the system to the condensers.
3. Refer to the detailed data in Table 2 or Table 3 to select the appropriate heat abstraction correction index.
4. Multiply the total heat abstraction by the selected heat correction index to determine the condensing load under specific working conditions.
5. Consult the Graph Specification sheet and choose the heat abstraction amount data that is greater than or equal to the corrected data.

Components & Options

Axial Flow Fan

Our cooling tower features a cutting-edge aluminum alloy axial flow fan, designed with forward-type blade structures for minimal wind resistance, impressive air volume, and ultra-low noise. This results in outstanding performance and exceptional efficiency. The streamlined high-strength fan stack ensures uniform airflow through both the inlet and outlet areas, significantly reducing energy consumption. The fan motor boasts a protection class of IP55 and an insulation class of F, ensuring durability and reliability.

 

Drift Eliminator

NEWIN's MBD series drift eliminator, crafted from advanced self-extinguishing PVC material, features a vertical grain texture design on its surface that enhances product strength. Assembled into a block for superb load-bearing capacity with minimal wind resistance, it effectively removes entrained water droplets from exhaust airflow-achieving a remarkable 99.99% drift capture and recovery rate.

Water Distribution System

The spray system incorporates SPJT pressure-type nozzles, delivering a fine and dense mist efficiently under the water pump's pressure. It covers a large spray area with even distribution, ensuring optimal performance.

 

Condensing Coil

Our design employs 304 stainless steel coils renowned for their robust anti-corrosion properties. The unique coil set design significantly boosts heat transfer performance. Coil materials available include SUS 304/316, Copper, or Galvanized steel.

 

PVC Heat Exchanger Layer

NEWIN's MAH series fill film, made from advanced self-extinguishing PVC material, is designed with a special texture that offers ample surface area for heat exchange. It is equipped with a grille and water receiving edge to minimize drift water loss, ensuring superior heat transfer efficiency. For enhanced durability, fill film materials can be upgraded to high-temperature resistant options.

 

Air Inlet Louver

The HDGS material air inlet louver is engineered to direct airflow evenly into the equipment, reduce noise, and protect the internal packing from exposure. This design is maintenance-free, offering long-lasting performance.

 

 

Heavy-duty Construction

Our cooling tower features a modular structure made of high-quality Z700 galvanized anti-corrosion plates. You have the option of selecting the robust NWN-Armour plate or SUS 304/316 plates for unparalleled corrosion resistance.

About NWN-Armour plate

The NWN-Armour plate, a galvanized steel panel with an advanced anti-corrosion NWN-Armour coating, offers exceptional resistance and durability that rivals stainless steel. It's a cost-effective alternative to Stainless Steel 304, providing similar protective qualities at a fraction of the price.

 

NEWIN Manufacturing Base

NEWIN FACTORY
Nestled in the vibrant and dynamic landscape of Huizhou, Guangdong, our expansive manufacturing base spans an impressive 10,000 square meters. This state-of-the-art environment is designed to foster both cutting-edge innovation and production excellence, setting a new standard in manufacturing.

ISO CERTIFICATION
Proudly holding prestigious ISO certifications, including ISO9001:2015 for Quality Management and ISO14001:2015 for Environmental Management, Newin stands as a beacon of dedication to superior quality and sustainable practices, embodying a commitment to excellence and environmental stewardship.

WORKSHOPS
Welding Workshop
Filler Thermoforming Workshop
Sheet Metal Processing Workshop
Cooling Tower Assembly Workshop

TESTING
Dedicated Independent Testing LAB


NEWIN COOLING TOWERS:

· NWN/ NWF/ NCFN Our Cutting-edge Closed Type Cooling Tower Series is meticulously engineered for optimal performance, ensuring unparalleled durability and efficiency in every application.
· NSH/ NST Our Highly efficient Open Type Cooling Tower Series is expertly designed to meet a wide range of applications, offering unmatched versatility and reliability.
· NTG Our Robust Industrial Type Cooling Tower Series is specifically crafted for demanding environments, providing exceptional durability and performance.
· NECN/NECH Our Sophisticated Evaporative Condenser systems deliver superior cooling efficiency through advanced technology, setting a benchmark in cooling solutions.
· NWFL The Innovative Dry Air Cooler solutions from Newin offer high-capacity, energy-efficient performance, perfectly tailored for modern industrial needs.


NEWIN offers a comprehensive inventory of premium cooling tower accessories, expertly catering to maintenance and replacement needs across a diverse range of cooling tower sizes and types. Contact us to customize the precise cooling tower accessories you require, ensuring optimal performance and extended longevity.

CONTAIN:
· Fan drive system components, including fan, fan stack, reducer, motor, and shaft, are expertly crafted to elevate functionality and efficiency.
· Water distribution elements, such as nozzles and drift eliminators, are designed to achieve optimal fluid management and maximize efficiency in every operation.
· Heat exchange components, including PVC infills and cooling coils, guarantee efficient thermal transfer and superior performance for all applications.
· Additional accessories, including air inlet louvers and valves, are meticulously engineered for seamless integration and enhanced performance, ensuring superior operational outcomes.
 

Packaging & Shipping

Open Type Cooling Towers Shipment: Experience logistics excellence with our expertly coordinated shipping solutions, ensuring your equipment arrives on time and in immaculate condition, ready to deliver peak performance right out of the box.

Closed Type Cooling Towers Shipment: Enjoy peace of mind with our secure and efficient delivery services. Our meticulous handling process protects your valuable assets, ensuring they are shielded from harm and arrive safely at their destination.

Technical Strength& Standards

Certifications