FRP Circular Counter-Flow Open Cooling Tower for Factory Cooling Water Treatment

• Customization: Available
• After-sales Service: Lifetime After-Sales
• Warranty: 12 Months
• Model NO.: Open cooling tower
• Cooling Method: Counter Flow
• Ventilation Mode: Mechanical Ventilation
• Material: Metal
• Air Contact Form: Wet and Dry
• Air Contact Way: Closed
• Tower Shape: Square
• Noise Level: Ultra Low
• Application Fields: Industrial
• Certification: RoHS, UR, ISO, CE, CCC
• Condition: New
• Customized: Yes
• OEM Service: Yes
• Modes of Packaging: Standard Export Packing
• Shipment Mark: According to Your Client′s Request
• Housing Material: Aluminum Zinc Plated Sheet and Stainless Steel
• Voltage: 380V, Customized
• Power: Customized
• Video Factory Inspection: Available
• Core Components: Engine
• Dimensions (Length X Width X Height): Depending on The Model
• Core Selling Points: 25 Years
• Cooling Type: Counter Current
• Type: Cross Flow Closed Circuit
• Application Program: Industrial Fluid Cooling
• Cooling Capacity: Ranging From 1 to 20 Tons
• Transport Package: 5450 × 2500 × 4100 Millimeters/5110 Ki
• Specification: 5450 × 2500 × 4100 millimeters/5110 ki
• Trademark: MAISHIDUN
• Origin: China
• HS Code: 8716400000
• Production Capacity: 5000sets/Year
• Package Size: 500.00cm * 255.00cm * 400.00cm
• Package Gross Weight: 5110.000kg

Product Description

Product Description

Open Circuit Cooling Tower

Open circuit cooling tower, also known as evaporative cooling tower or wet cooling tower, is a heat exchange equipment that uses the principles of water evaporation and heat absorption to cool process circulating water.
Its core feature is that the cooling water (circulating water) is directly exposed to the air and undergoes direct contact heat and mass exchange with the air. The cooled water is collected and pumped back to the equipment that needs to be cooled (such as condensers, reactors, air compressors, etc.) to absorb heat, and then the hot water is sent back to the top of the cooling tower for cooling, and so on.

Working Principle:
The cooling process of an open cooling tower mainly involves two simultaneous physical processes:
1.Sensible Heat Transfer:
Circulating water with higher temperatures comes into direct contact with air with lower temperatures.
Due to the temperature difference, heat is conducted from water to air, resulting in a decrease in water temperature and a relatively small increase in air temperature.
This part of the cooling does not involve the phase transition of water.
2.Latent Heat Transfer / Evaporative Cooling:
This is the main cooling mechanism of an open cooling tower (usually accounting for 70-80% of the total heat dissipation).
A small portion of the circulating water (approximately 1-3% of the total flow) evaporates into water vapor on the surface of the packing or during the spraying process.
The transformation of water from liquid to gas requires the absorption of a large amount of latent heat of vaporization (approximately 540 kcal/kg water), which directly comes from the remaining circulating water.
Evaporation causes a significant decrease in the temperature of the remaining circulating water.
The air that has absorbed water vapor becomes humid, and its humidity increases.

Application Area:
Industrial sector,Business field,Civilian field,Other fields

Product Advantages:

1. High cooling efficiency:
It can lower the temperature of the cooled water to near the wet bulb temperature of the ambient air (theoretical limit), which is the advantage of evaporative cooling.
2. Low initial investment cost:
The structure is relatively simple and does not require a closed heat exchange coil. The material cost is usually lower than that of a closed cooling tower.
3. The structure is relatively simple and easy to maintain: the main maintenance points (filling, water distribution, fan, water quality) have good visibility.
4. Low working pressure requirements for the system: The circulating water system is open and only needs to overcome pipeline resistance. The tower itself does not bear high pressure.
5. Suitable for high flow cooling:
Easy to design and construct large towers, widely used in industrial applications that require handling large amounts of cooling water (such as power plants).
6. The material selection is diverse and mature: FRP, PVC fillers, etc. are economical and durable.

Summary:
Open cooling tower is an efficient, economical (initial investment), and suitable cooling equipment for large-scale applications. Its core advantage lies in using the principle of evaporative cooling to lower the water temperature to near wet bulb temperature. However, its biggest challenge lies in water quality management, which requires sustained investment in water treatment to address scaling, corrosion, and microbial issues, as well as high water consumption and certain environmental impact factors. When making a choice, it is necessary to comprehensively weigh factors such as effluent temperature requirements, initial investment budget, water quality conditions, water treatment costs, system pressure, environmental limitations, and maintenance capabilities.

Standard Type Square Counter-flow Cooling Tower Selection Parameters Table
model	Cold capacity kcal/h	Circulating water volume m³/h	fan		spray pump	Connect the pipes mm			Overall size of the equipment mm			Shroud size			net weight Kg	load Kg	remarks	circulating pump
			blowing rate m³/h	power KW	power KW	Customized inlet and outlet	Water refill port	drain outlet	L	W	H	L	W	H				power KW	rate of flow m³/h	head of delivery M	water box m³	Tank size
ZM-BNL200	50000	10	8000	0.37*1	0.75	DN50	DN32	DN32	1630	910	2180	1230	910	1800	400	900	Mainframe, stand-alone unit	2.2*1	22.3	16	0.25	500x500x1000
ZM-BNL300	75000	15	8000	0.37*1	0.75	DN50	DN32	DN33	1630	910	2380	1230	910	2000	500	1000	Mainframe, stand-alone unit	2.2*1	22.3	16	0.25	500x500x1000
ZM-BNL400	100000	20	8000	0.37*2	0.75	DN65	DN32	DN32	2380	910	2380	1980	910	2000	700	1500	Mainframe, stand-alone unit	3*1	23.4	28	0.25	500x500x1000
ZM-BNL600	150000	30	8000	0.37*2	1.5	DN65	DN32	DN32	2380	1160	2380	1980	1160	2000	800	1800	Mainframe, stand-alone unit	4*2	32	27	0.5	1000x500x1000
ZM-BNL800	200000	40	12800	0.75*2	1.5	DN65	DN32	DN32	2880	1160	2425	2480	1160	2000	900	1900	Mainframe, stand-alone unit	5.5*2	46.7	28	0.5	1000x500x1000
ZM-BNL1000	250000	50	22000	1.5*2	1.5	DN65	DN32	DN32	2880	1160	2635	2480	1160	2200	1000	2300	Mainframe, stand-alone unit	5.5*2	46.7	28	0.5	1000x500x1000
ZM-BNL1200	300000	60	22000	1.5*2	2.2	DN65	DN32	DN32	2880	1410	2635	2480	1410	2200	1200	2800	Mainframe, stand-alone unit	7.5*2	65	28	0.5	1000x500x1000
ZM-BNL1600	400000	80	28000	2.2*2	3	DN80	DN32	DN32	2880	1910	2685	2480	1910	2200	1400	3600	Mainframe, stand-alone unit	7.5*2	86	25	0.5	1000x500x1000
ZM-BNL2000	500000	100	22000	1.5*4	3	DN100	DN32	DN32	3480	1910	2655	2980	1910	2200	1600	4200	Mainframe, stand-alone unit	11*2	93.5	28	1	1000x1000x1000
ZM-BNL2000	500000	convention100	28000	2.2*2	3	DN100	DN32	DN32	3480	1910	2705	2980	1910	2200	1600	4200	Mainframe, stand-alone unit	11*2	93.5	28	1	1000x1000x1000
ZM-BNL2000	500000	100	22000	1.5*3	3	DN100	DN32	DN32	3480	1910	2655	2980	1910	2200	1600	4200	Mainframe, stand-alone unit	11*2	93.5	28	1	1000x1000x1000
ZM-BNL2200	550000	110	22000	1.5*4	convention5.5/4	DN100	DN32	DN32	3480	1910	2655	2980	1910	2200	1700	4300	Mainframe, stand-alone unit	11*2	93.5	28	1	1000x1000x1000
ZM-BNL2400	600000	120	22000	1.5*4	convention5.5/4	DN100	DN32	DN32	3480	1910	2655	2980	1910	2200	1900	4600	Mainframe, stand-alone unit	15*2	130	24	1	1000x1000x1000
ZM-BNL2600	650000	130	22000	1.5*4	convention5.5/4	DN100	DN32	DN32	3480	2200	2655	2980	2200	2500	2000	5100	Mainframe, stand-alone unit	15*2	130	24	1	1000x1000x1000
ZM-BNL2800	700000	140	22000	1.5*4	convention5.5/4	DN100	DN32	DN32	3480	2200	2655	2980	2200	2500	2100	5200	Mainframe, stand-alone unit	15*2	130	24	1	1000x1000x1000
ZM-BNL3000	750000	150	28000	2.2*4	5.5	DN100	DN32	DN40	3480	2200	3005	2980	2200	2500	2200	5300	Mainframe, stand-alone unit	18.5*2	150	28	1.5	1000x1500x1000
ZM-BNL3200	800000	160	40000	3*2	5.5	DN125	DN32	DN40	3480	2200	3005	2980	2200	2500	2350	5500	Mainframe, stand-alone unit	18.5*2	150	28	1.5	1000x1500x1000
ZM-BNL3400	850000	170	40000	3*2	5.5	DN125	DN32	DN40	3480	2200	3005	2980	2200	2500	2500	5700	Mainframe, stand-alone unit	18.5*2	150	28	1.5	1000x1500x1000
ZM-BNL3600	900000	180	65000	4*2	5.5	DN125	DN32	DN40	3480	2200	3005	2980	2200	2500	2650	5900	Mainframe, stand-alone unit	18.5*2	180	25	1.5	1000x1500x1000
ZM-BNL3800	950000	190	65000	4*2	7.5	DN125	DN32	DN40	4100	2200	3165	3500	2200	2700	2800	6500	Mainframe, stand-alone unit	22*2	192	27	1.5	1000x1500x1000
ZM-BNL4000	1000000	200	65000	4*2	7.5	DN150	DN32	DN40	4100	2200	3365	3500	2200	2700	3000	7400	Mainframe, stand-alone unit	22*2	192	27	2	1000x2000x1000
ZM-BNL4400	1100000	220	75000/85000	5.5*2	7.5	DN150	DN25	DN50	4100	2200	3385	3500	2200	2700	3250	7800	Mainframe, stand-alone unit	22*2	192	27	2	1000x2000x1000
ZM-BNL4800	1200000	240	75000/85000	5.5*2	7.5	DN150	DN32	DN50	4600	2200	3385	4000	2200	2700	3500	8600	Mainframe, stand-alone unit	30*2	262	24	2	1000x2000x1000
ZM-BNL5200	1300000	260	75000/85000	5.5*2	4×2	DN150	DN32	DN50	5700	2200	3385	4500	2200	2700	4000	8900	Mainframe, stand-alone unit	30*2	262	24	3	2000x1000x1500
ZM-BNL5600	1400000	280	100000	7.5*2	4×2	DN200	DN32	DN50	5700	2200	3385	4500	2200	2700	4000	9800	Mainframe, stand-alone unit	30*2	262	24	3	2000x1000x1500
ZM-BNL6000	1500000	300	100000	7.5*2	4×2	DN200	DN32	DN50	6200	2200	3385	5000	2200	2700	6250	12600	Mainframe, stand-alone unit	22*3	160	32	4	2000x1000x2000
ZM-BNL8000	2000000	400	160000	11*2(22#)	5.5×2	DN125*4	DN32	DN50	8300	3000	4250				8500	23400	Mainframe, stand-alone unit	55*2	400	32	4	2000x1000x2000
ZM-BNL10000	2500000	500	135000	11*3(18#)	7.5×2	DN150*4	DN32	DN50	11390	3000	4250	9000	3200	4100	9250	27900	Mainframe, stand-alone unit	75*2	550	32	6	2000x1500x2000
ZM-BNL12000	3000000	600	100000	7.5*4	4×4	DN200*2	DN32	DN50	10000	3000	4200				10500	27200	Mainframe, stand-alone unit	37*3	300	32	6	2000x1500x2000
ZM-BNL14000	3500000	700	140000	7.5*4(20#)	5.5×4	DN250*2	DN32	DN50	15700	3000	4250				12000	38300	Mainframe, stand-alone unit	75*2	720	28	6	2000x1500x2000
ZM-BNL16000	4000000	800	160000	11*4(22#)	7.5×4	DN125*8	DN32	DN50	8300	6000	4250				14000	40500	Mainframe, stand-alone unit	55*3	400	32	6	2000x1500x2000
ZM-BNL20000	5000000	1000	135000	11*6(18#)	7.5×4	DN150*8	DN32	DN50	11390	6000	4250				16000	53200	Mainframe, stand-alone unit	75*3	550	32	6	2000x1500x2000
	1,Design conditions: Wet bulb temperature 27 - 28ºC, dry bulb temperature 31.5ºC.
	2,△t=5ºC,t1=37ºC,t2=32ºC;△t=8ºC,t1=40ºC,t2=32ºC.
	3,Model designations: D - Low Noise, N - Counter Current Type, T - Cooling Tower, xxx - Flow Rate, L - Dry Tank.
	4,This selection parameter table and related data are for reference only. We will configure the products based on changes in working conditions and new technologies. Please refer to the provided solutions.

Company Profile

Shandong Zhongmai Industrial Technology Co., Ltd. is a high-tech enterprise focusing on industrial science and technology research and development, intelligent manufacturing, high-end equipment production and technical services. Main products: Water purification treatment equipment (RO reverse osmosis equipment, single and double reverse osmosis equipment), mining equipment, cooling towers, mobile dining cars and other equipment. The company is based in Shandong and radiates throughout the country, and is committed to providing innovative industrial solutions and high-quality products and services for global customers.

Workshop & Equipment

Certifications

Packaging & Shipping

FAQ

Q1: Are you a trader or a manufacturer?
A: We are a direct factory! All our products are developed and produced in our self-built factory. We have a complete production line and technical team. We have full control over the entire process from raw materials to finished products, ensuring quality and cost advantages.

Q2: Can the products be customized according to requirements? How long is the customization cycle?
A: We support full customization!
Whether it's water purification equipment, mining machinery, mobile food trucks, space cabin modules, cooling towers, oil-water separators, etc., we can customize the functions, specifications, and appearances according to customer needs.
Cycle: It usually takes 15 to 60 days depending on the complexity (specifically confirmed after technical assessment), and we can respond efficiently to urgent demands.

Q3: What are the advantages of modular equipment (such as mobile food trucks, space capsules)?
A: Three core advantages:
Flexible deployment: Quick assembly, easy to move, suitable for various scenarios such as scenic spots, mining areas, and commercial streets;
On-demand expansion: Supports free combination of functional modules (such as water and electricity systems, temperature control equipment);
Shorter construction period and lower cost: Standardized components + customized design, saving more than 50% of time compared to traditional construction.

Q4: Is the technology mature? How is the equipment quality guaranteed?
A: Dual guarantee system:
Technical perfection: With years of experience in the industry, the water purification treatment, oil-water separation equipment, etc. adopt patented technologies, and the cooling tower fuel engine, etc. have passed ISO performance certification;
Strict quality control: There are multiple quality inspection procedures throughout the process, factory testing, and a warranty is provided.


Q5: How does the after-sales service respond?
A: Full-process worry-free service:
7×24-hour technical consultation;
Domestic issues responded to within 48 hours;
Free operation training + maintenance guidance.

Q6: Does the cooling tower diesel engine save energy?
A: Intelligent energy-saving design!
It adopts variable frequency control and heat recovery technology, which is 20% - 35% more energy-efficient than traditional models. It can adapt to different load requirements and significantly reduce operating costs.

Q7: The company produces so many product categories. How can it ensure professionalism?
A: Core technologies are platformized!
Relying on the modular manufacturing system and the three technical middle platforms of fluid processing, mechanical engineering, and intelligent control, multiple production lines operate to ensure that equipment in all fields reaches the industry-leading level.

Q8: How can I obtain detailed plans and quotations?
A: Four-step rapid connection:
Submit requirements (scenario/parameters/budget);
The technical team will provide a preliminary plan within 24 hours;
Sample experience/factory inspection;
After signing the contract, production will commence.