Advanced Closed Cooling Tower for Optimal Cooling Performance and Durability

• 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

NECH Series Evaporative Condenser / Closed Cooling Tower
NECH is one of the quintessential designs in the realm of evaporative condensers. Distinguished by its innovative mixed-flow heat transfer system, it optimizes the vertical cross-flow direction of air and refrigerant steam. This avant-garde design ensures that air flows effortlessly and uniformly through the condenser, thereby significantly enhancing heat exchange efficiency and delivering superior cooling performance.

Advantages

 

· Experience the unparalleled efficiency with our mixed flow heat transfer system, engineered to boost condensation efficiency to new heights.
The innovative vertical cross flow design ensures that air and refrigerant steam intersect perfectly, allowing air to flow uniformly through the condenser, optimizing the heat transfer process.

· Our secondary heat transfer technology significantly elevates cooling efficiency, setting a new benchmark in cooling solutions.

The process initiates as spray water traverses the condenser coil, engaging in a primary heat exchange. It then flows through the lower PVC heat exchange layer for a secondary interaction before finally collecting in the basin for recycling, substantially enhancing cooling performance.

· Embrace a closed circuit system that champions energy efficiency and environmental protection.

The refrigerant circulates in a gaseous state within a closed coil, maintaining cleanliness, reducing water usage and maintenance costs, and extending the lifespan of the equipment.

· Ingeniously engineered with a compact structure, offering robustness and convenience.

Its small footprint simplifies shipment and ensures ease of installation and maintenance, catering to your every need.

 

Work Principle

When NECH evaporative condenser is in operation:
The condensing coil acts as the primary conduit for the refrigerant steam, where it masterfully transforms the refrigerant steam into liquid. This is achieved through a brilliant process of evaporating and absorbing heat facilitated by a finely-tuned spray of water. The sprayed water navigates through the coil unit seamlessly and then flows into the high-performance PVC heat exchange, continuing the secondary heat transfer process. Simultaneously, the precision-engineered axial flow fan generates the necessary power, crafting a sophisticated cross flow of air within the condenser. This air interacts with the refrigerant steam, optimizing the heat exchange, resulting in unparalleled 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 Optimal Selection
1. Begin by confirming essential parameters: condensing temperature and wet bulb temperature.
2. Calculate the total heat abstraction amount that flows through the system to the condensers for an accurate assessment.
3. Consult Table 2 or Table 3 for selecting the appropriate heat abstraction amount correction index that aligns with your needs.
4. Multiply the total heat abstraction amount by the heat correction index to determine the precise condensing load under the specified working conditions.
5. Refer to the Graph Specification sheet to choose heat abstraction data that meets or exceeds the corrected data, ensuring optimal performance.

Components & Options

Axial Flow Fan

Introducing our state-of-the-art cooling tower special aluminum alloy axial flow fan, designed with a forward-type blade structure for reduced wind resistance yet delivering an impressive air volume. Experience low noise, outstanding performance, and superior efficiency. The streamline, high-strength fan stack ensures uniform airflow across the fan inlet and outlet areas, significantly minimizing energy consumption. The fan motor is robustly constructed with a protection class of IP55 and an insulation class of F, guaranteeing both reliability and longevity.

 

Drift Eliminator

Our innovative MBD series drift eliminator, crafted by NEWIN, utilizes advanced self-extinguishing PVC material. With a vertically textured sheet surface design, it enhances product strength and is glued into a cohesive block for strong load-bearing capacity. This design minimizes wind resistance and effectively captures and recovers a remarkable 99.99% of entrained water droplets from the exhaust airflow.

 

Water Distribution System

The spray system employs SPJT pressure-type nozzles, creating a fine and dense liquid mist under the pressure action of water pumps. Featuring a large spray area and even distribution, this system ensures optimal water coverage and cooling efficiency.

 

Condensing Coil

Engineered with high anti-corrosion 304 stainless steel coils, our condensing coil boasts a special coil set design that enhances heat transfer performance. Available coil materials include SUS 304/316, Copper, or Galvanized steel, providing a versatile selection for diverse needs.

 

PVC Heat Exchanger Layer

The NEWIN MAH series fill film, crafted from advanced self-extinguishing PVC material, features a special texture design. It offers a substantial heat exchange surface area, equipped with a grille and water-receiving edge to minimize drift water loss and ensure high heat transfer efficiency. For added durability, fill film materials can be upgraded to high-temperature resistant options.

 

Air Inlet Louver

Crafted from HDGS material, our air inlet louver ensures a seamless and even airflow into the equipment, significantly reducing noise while preventing packing exposure. Enjoy a maintenance-free experience with this innovative design.

 

 

Heavy-duty Construction

Our modular structure features top-notch Z700 galvanized anti-corrosion plates, offering robust protection. Options include strong corrosion-resistant NWN-Armour plates or SUS 304/316 plates, making it a formidable choice for various environmental conditions.

About NWN-Armour plate

NWN-Armour plates are galvanized steel panels with an exceptional NWN-Armour anti-corrosion coating, providing resistance and corrosion protection comparable to stainless steel. This offers a cost-effective alternative to Stainless Steel 304, delivering outstanding durability and value.

 

NEWIN Manufacturing Base

NEWIN FACTORY
Nestled in the vibrant landscape of Huizhou, Guangdong, our expansive manufacturing base stretches across an impressive 10,000 square meters. It is a beacon of modernity, providing a state-of-the-art environment that seamlessly blends innovation with production excellence, ensuring top-tier output.

ISO CERTIFICATION
Boasting prestigious ISO certifications like ISO9001:2015 for Quality Management and ISO14001:2015 for Environmental Management, Newin proudly stands as a testament to our unwavering commitment to superior quality and sustainable practices, ensuring our products not only meet but exceed industry standards.

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 state-of-the-art Closed Type Cooling Tower Series is designed for optimal performance, ensuring exceptional durability and outstanding efficiency. Engineered to perform under diverse conditions, it guarantees reliability and longevity.
· NSH/ NST Our highly efficient Open Type Cooling Tower Series excels across a diverse range of applications with versatility and reliability at its core, offering robust solutions tailored to meet the dynamic needs of modern industries.
· NTG Our robust Industrial Type Cooling Tower Series is meticulously designed for the most demanding environments, offering unparalleled durability and steadfast performance, making it the ideal choice for industrial settings.
· NECN/NECH Our sophisticated Evaporative Condenser systems deliver superior cooling efficiency through cutting-edge technology, setting new benchmarks in performance and energy efficiency.
· NWFL The innovative Dry Air Cooler solutions from Newin are engineered for high-capacity, energy-efficient performance, perfectly suited for the rigorous demands of modern industrial operations.


NEWIN offers a comprehensive selection of premium cooling tower accessories, meticulously designed to address maintenance and replacement needs across a wide spectrum of cooling tower sizes and types. Contact us to customize the precise accessories needed to ensure optimal performance and extend the longevity of your cooling systems.

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

Packaging & Shipping

Open Type Cooling Towers Shipment: Embark on a seamless journey of logistics brilliance with our meticulously orchestrated shipping solutions. We pledge not only timely arrival but also pristine condition, ensuring your equipment is poised to deliver exceptional performance from the very first use.

Closed Type Cooling Towers Shipment: Enjoy unrivaled peace of mind with our robust and streamlined delivery services. Our scrupulous handling process serves as a steadfast protector for your prized equipment, safeguarding it against any potential harm and ensuring it reaches its destination flawlessly secure.

Technical Strength& Standards

Certifications