Durable Closed Cooling Tower with Aluminium Alloy Fan and IP65 Rating

• Customization: Available
• Warranty: 2 Years
• Cooling Method: Mixed 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
• Condition: New
• Fan: Aluminium Alloy
• Protection Level: IP55/ IP65, Insulation Class F
• Capacity Range: 240~2000kw
• 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
Model Name: NECH The NECH is a popular type of evaporative condenser, renowned for its innovative mixed flow heat transfer design, featuring a vertical cross flow direction for both air and refrigerant steam. This sophisticated design ensures that air flows uniformly through the condenser, greatly enhancing heat exchange efficiency for optimal performance.

Advantages

 

· Our innovative mixed flow heat transfer technology significantly boosts condensation efficiency, ensuring your system operates at peak performance.
Experience unparalleled heat transfer efficiency with our vertical cross-flow design, which ensures that air and refrigerant steam flow uniformly through the condenser for optimal results.

· Revolutionize your cooling process with our secondary heat transfer feature, designed to enhance cooling efficiency like never before.

Our system ingeniously utilizes a two-step heat exchange process: initially, the spray water flows through the condenser coil for an initial exchange, and subsequently passes through a PVC heat exchange layer for secondary heat transfer, before finally collecting in the basin for recycling-maximizing cooling efficiency every step of the way.

· Embrace sustainability with our closed circuit system that emphasizes energy savings and environmental protection.

By condensing the gaseous refrigerant within a closed coil circulation, our design minimizes maintenance costs, reduces water consumption, and extends the equipment's service life, all while maintaining cleanliness and efficiency.

· Benefit from our compact structure design that combines high strength with user-friendly convenience.

Enjoy a small footprint that simplifies shipping, installation, and maintenance, ensuring our product is as practical as it is powerful.

 

Work Principle

During the operation of the NECH evaporative condenser:
The condensing coil serves as the primary conduit for refrigerant steam, which transforms the refrigerant steam into a liquid state through the process of evaporation and heat absorption via water spraying. This spray water flows over the coil unit, subsequently entering the PVC heat exchange system, continuing the secondary heat transfer process. Meanwhile, the powerful axial flow fan delivers the necessary force, creating a cross-flow of air inside the condenser, effectively exchanging heat with the refrigerant steam, thereby ensuring superior condensation efficiency.

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 to ensure optimal efficiency.
2. Calculate the total heat abstraction amount that permeates the system, ultimately reaching the condensers.
3. Refer to Table 2 or Table 3 below to select the appropriate heat abstraction amount correction index.
4. Multiply the total amount of heat abstraction by the heat correction index to determine the condensing load under specified working conditions.
5. Consult the Graph Specification sheet to select heat abstraction amount data that is equal to or greater than the corrected data value.

Components & Options

Axial Flow Fan

Crafted with precision, this cooling tower utilizes a specialized aluminum alloy axial flow fan with a forward blade structure design. Experience remarkably low wind resistance and enjoy a significant air volume with minimal noise. This design ensures stellar performance and outstanding efficiency. The fan's streamlined high-strength stack ensures consistent airflow through both the inlet and outlet areas, significantly curtailing energy consumption. Additionally, the fan motor boasts an IP55 protection class and an F-class insulation to ensure durable performance.

 

Drift Eliminator

Our NEWIN-crafted MBD series drift eliminator employs advanced self-extinguishing PVC material. The vertical grain texture design on the sheet surface not only enhances the product's strength but also ensures robust load-bearing capacity. Effortlessly eliminating exhaust air flow's entrained water droplets, it captures and recovers up to an impressive 99.99% of drift, offering minimal wind resistance.

 

Water Distribution System

The spray system features cutting-edge SPJT pressure type nozzles, delivering a fine and dense liquid mist under the exerted pressure of the water pump. This setup ensures an expansive spray area with evenly distributed coverage, optimizing the cooling process.

 

Condensing Coil

Using 304 stainless steel coils characterized by high anti-corrosion properties, this system is engineered for excellence. The innovative coil set design enhances heat transfer performance, ensuring robust and efficient functionality. Available coil materials include SUS 304/316, Copper or Galvanized steel, catering to diverse needs.

 

PVC Heat Exchanger Layer

Featuring the NEWIN-designed MAH series fill film, this layer employs advanced self-extinguishing PVC material with a specialized texture design, providing an expansive heat exchange surface area. Equipped with a grille and water receiving edge, it effectively reduces the loss of drift water while ensuring unmatched heat transfer efficiency. For even greater resilience, fill film materials can be upgraded to withstand higher temperatures.

 

Air Inlet Louver

The HDGS material air inlet louver is ingeniously designed to facilitate even airflow into the equipment, minimizing noise and preventing exposure of the packing. This maintenance-free component is a testament to long-lasting quality.

 

 

Heavy-duty Construction

Engineered with a modular structure, this construction employs high-quality Z700 galvanized anti-corrosion plates. Opt for the incredibly robust NWN-Armour plate or SUS 304/316 plate, both offering exceptional corrosion resistance.

About NWN-Armour plate

The NWN-Armour plate is a galvanized steel panel with a unique anti-corrosion coating that mirrors the resistance of stainless steel. It stands as a remarkably cost-effective alternative to Stainless Steel 304, offering the dual advantages of excellent durability and budget-friendliness.

 

NEWIN Manufacturing Base

NEWIN FACTORY
Nestled in the vibrant landscape of Huizhou, Guangdong, our expansive manufacturing base covers an impressive 10,000 square meters. This state-of-the-art facility is a hub of innovation and excellence, where cutting-edge technology meets outstanding craftsmanship.

ISO CERTIFICATION
Boasting prestigious ISO certifications, including ISO9001:2015 for Quality Management and ISO14001:2015 for Environmental Management, Newin exemplifies a steadfast commitment to superior quality and sustainable practices, setting a gold standard in the industry.

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, engineered for optimal performance, ensures unparalleled durability and efficiency.
· NSH/ NST Our highly efficient Open Type Cooling Tower Series is designed to meet diverse applications, offering unmatched versatility and reliability.
· NTG Our robust Industrial Type Cooling Tower Series is specifically tailored for demanding environments, providing exceptional durability and performance.
· NECN/NECH Our sophisticated Evaporative Condenser systems deliver superior cooling efficiency through cutting-edge technology and design.
· NWFL Newin's innovative Dry Air Cooler solutions offer high-capacity, energy-efficient performance tailored for modern industrial demands.


NEWIN offers a comprehensive range of premium cooling tower accessories, tailored to meet the diverse maintenance and replacement needs of various cooling tower sizes and types. Contact us for customized solutions that ensure peak performance and longevity.

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

Packaging & Shipping

Open Type Cooling Towers Shipment: Experience unparalleled logistics excellence with Newin (Guangdong) Machinery Co., Ltd. Our expertly coordinated shipping solutions guarantee that your equipment arrives punctually and in pristine condition, ensuring it is ready to deliver peak performance immediately upon arrival. Trust in our commitment to exceptional service and reliability for your cooling tower needs.

Closed Type Cooling Towers Shipment: Enjoy complete peace of mind with our reliable and secure delivery services from Newin (Guangdong) Machinery Co., Ltd. Our meticulous handling process serves as a vigilant protector for your valuable assets, ensuring they are safeguarded from any potential harm and reach their destination in perfect condition. Rely on our dedication to excellence in logistics for a seamless and stress-free shipping experience.

Technical Strength& Standards

Certifications