Cross-flow Closed Circuit Cooling Towers / Evaporative Closed-circuit Coolers

Short Description:


Process Principle

Configurations

Technical Parameters

work Theory

Feactures

Applications

Product Tags

Features of cross-flow closed circuit cooling towers:

Convenient Maintenance
Humanization design structure with over-sized access door (lockable) and sufficient inner space, the maintenance personnel could conveniently enter inside of the tower for daily inspection and maintenance no matter the equipment is running or shut-downs.

Anti-scaling
Due to the cooled dry air and spray water flow in a parallel path, the surface of tube been completely damped by the spray water to avoid any dry spot which will lead to scale deposit. And the spray water’s temperature is lower than scaling temperature which also highly reduces scaling.

Excellent Heat Exchange Performance
The cross-flow closed loop coolers adopt a combination technology of both coil and stuffing for heat rejection which optimized the heat transfer surfaces to improve the system efficiency. 

ICE Evaporative cross-flow closed circuit coolers’ structure and key components introduction:

Ventilation System (Fan)
Outdoor axial fan with good performance of three-protection design, equipped with aluminum blade and IP56, F class driven motor with induced ventilator which will block the air and reduce the leakage.

Advanced Water Distribution System
Due to the air and water flow in a parallel path, it is capable to inspect and maintain during the running process.

Cooler (coil)
Made in high quality stainless steel 304 which been classified and passed 3 times 2.5Mpa pressure measurement to ensure the performance.

Scale Cleaner
It’s an optional choice for the recalculating water treatment.

Filling (PVC)
Constructed and made of PVC to lower the spray water temperature which will avoid scale and the filling actually increase the system efficiency by reducing the water consumption with a better heat transferring performance.

Spray Pump
ICE coolers equipped with mechanical sealed centrifugal pump.

Water Basin
The slope design (tilt towards pollutant discharge exit) and the stainless steel strainer will improve the overflow and pollution discharge simultaneously clears the pollutants and impurities in the basin.

Structure chart of ICE cross-flow Closed Circuit Cooling Tower
ICE cross-flow Closed Circuit Cooling Tower system applied in brewery
ICE cross-flow Closed Circuit Cooling Tower System applied in chemical plant
ICE cross-flow Closed Circuit Cooling Tower System applied in petroleum refineries

As induced draft type cross flow evaporative cooling tower, the tower fluid (water, oil or propylene glycol) is used to provide cooling which is enclosed in a coil and is not exposed directly to the air. The coil serves to isolate the process fluid from the outside air, keeping it clean and contaminate free in a closed loop. Outside of the coil, there is water spraying over the coil and mixes with the outside air to discharge warm air from the cooling tower to the atmosphere as a portion of the water evaporates. Cold water outside of the coil is re-circulated and reused: the cool water loops back to the beginning of the process to absorb more heat during evaporating. It helps maintain a clean process fluid which will reduce the maintenance and operation costs. 


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  • sadaf

    DS:The standard closed loop series adopt direct-drive axial fans, fitted with resin or al-alloy airfoil blades perfectly balanced and coupled to a weather proof TEFC three-phases electric motor. The fan casing is a galvanized steel cylinder to draw the air vertically and avoid the risk of recirculation. The tip speed of the impeller is limited to keep the noise level within acceptable limits.

    Non-direct Drive Axial Fans

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    DS:A part of open loop series adopt non-direct drive axial fans, fitted with al-alloy airfoil blades perfectly balanced and coupled with gear box or belts with spead reducer, to a weather proof TEFC three-phases electric motor. The fan casing is a galvanized steel cylinder to draw the air vertically and avoid the risk of recirculation. The tip speed of the impeller is limited to keep the noise level within acceptable limits.

    LOW NOISE FANS

    Fans with low noise design, suitable for installation locations with strict noise limit, 6 to 12 db(a) lower than standard fan system.

    Spary Nozzies

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    DS :The Spiral Target Nozzles used for cooling towers, injection molded in polypropylene unit consisting of two parts, main body with integral target diffuser and a snap-on insert or orifice cap. The nozzles installed in bottom of the hot water distribution basins, to eliminate water diffusion decks below the hot water basins, provide full water coverage of the fills by gravity flow, removable and replaceable but of long service life. Sizes and variety depends on the tower size, water flow rate and water quality.

    Spar Pump

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    DS :Cast iron material,Siemens motor High flow and low pump head

    The selected pumps are of dynamic-static balance, with shaft as an extended section from the motor, for most reliable concentricity. With first grade bearings, the pumps runat minimized vibration and low noise. Mechanicseals avoids abrasion to shaft, no leakage in long term service life. Overload protected on any point of the performance curve, not exceeding the rated power during the whole working period. Enclosure materials and installation arrangement can be optional and modified to suit different projects requirements.

    Fill

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    DS:The fills are formed in flame-retardant PVC sheets with a special shape design of herringbone surface, to distribute water evenly over the entire fill area for maximal thermal performance, can be integrated with air inlet louvers and drift eliminators. For medium fouled water, fill types with enlarged grids are available to reduce the chances of blocks. All the raw materials are of virgin grade from approved suppliers, with long service life in tough environment.

    Drift Eliminator

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    DS:Cellular Drift Eliminators are specifically designed to achieve maximum drift removal. With significantly lower pressure drop. The modules are constructed of a series of sinusoidal-shaped, corrugated PVC sheets that are mechanically assembled to mating sinusoidal structural waves, forming closed cells. These cells force the drift droplets being carried in the leaving airstream to make three distinct changes in direction. When the air is forced to change direction, the inertia of the water droplets keeps them moving in a straight line, causing them to impact the wall of the drift eliminator and drain back into the wet section of the tower.

    Spary pipe

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    DS:Spray Pipes made in U-PVC from FPC, of high mechanical strength and long service life, holding pressure1.0 Mpa, accessible to inspect and maintain from outside of the tower, convenient to check with when running fully, completed with buttonholes for quick and tight installations of spray nozzles.

    Float valve

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    DS:Heavy duty floating valve, made in stainless steel, floating ball in engineering plastic or stainless steel, with long service life. Water level adjustable.

    Fasteners

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    DS :Fasteners of leading brands, standard materials in steel dacromet treated, stainless steel on options. Intensity of fastners is higher than average.

    Control Panel

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    DS:The control panel is optional for each cooling tower, or a group of towers can share a central control station. The enclosure can be made in powder coated carbon steel, or stainless steel on options, with or without weather proof arrangement.

    Circulation Auxiliary Section

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    DS:Circulation Pumps with Transfer Water Tank, as an integrated solution of circulating system, with PID design on request.

    Protective Accessories

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    DS:For maintenance convenience and safety, made in HDG steel or stainless steel.

    Eletrical Heater

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    DS:Applied to heat the freezing water when restarting the tower during winter season in some area.

    PLC Digital Control

    DS:In cases digital or remote control function required, the PLC can be applied and programmed according to the project demands, with or without PC connection terminal, usually of brand Simens or AB.

    FREQUENCY CONTROL

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    DS:An optional part to adjust the frequency of power supply.

    AUTO MAKE UP UNIT

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    An optional part to make up the liquid automatically, to be working together with liquid level controller.

    Condensation Coil 

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    The condensing coils are made of high-quality

    seamless stell pipes with thickness of 25mm.(GB/T8163)The design pressure is 1.97Mpa .All the coils have been pneumatically tested 3times at 2.5Mpa to avoid leakage .The coils are galvanized to avoid being rotten .The slope of coils helps the discharge of liquid ,The differential pressure of the coil is small

    Electronic Water-Curing Device

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    The electronic water-curing device is very advanced and

    works under 220V power supply .It can help the condenser to antiscale ,descale,sterilize and eliminate alga,activating the circular cooling water

    Technical Parameters of Cross-flow Closed-circuit Cooling Tower

    Model

    Fan

    Spraying Pump

    Inlet/outlet pipe size

    Net Weight

    Function Weight

    Dimension

    Air Volume

    Power

    Qty.

    Flow Rate

    Power

    m3/h

    KW

    Unit

    m3/h

    KW

    DN

    KG

    KG

    L*W*H(mm)

    HICE-60T

    60000

    4

    1 45

    1.5

    DN100

    3370

    4300

    2110x2410x4225

    HICE-65T

    60000

    4

    1 45

    1.5

    DN100

    3580

    4500

    2110x2410x4225

    HICE-70T

    65000

    5.5

    1 45

    1.5

    DN100

    3650

    4600

    2110x2410x4225

    HICE-80T

    62000

    4

    1 65

    2.2

    DN100

    4060

    5100

    2210x3030x4265

    HICE-85T

    75000

    5.5

    1 65

    2.2

    DN100

    4150

    5200

    2210x3030x4265

    HICE-95T

    75000

    5.5

    1 65

    2.2

    DN125

    4430

    5500

    2210x3030x4265

    HICE-100T

    75000

    5.5

    1 65

    2.2

    DN125

    4880

    6200

    2210x3030x4965

    HICE-105T

    87000

    7.5

    1 65

    2.2

    DN125

    4950

    6300

    2210x3030x4965

    HICE-130T

    2X65000

    2X5.5

    2 100

    3

    DN150

    5780

    7500

    3860x2410x4225

    HICE-140T

    2X60000

    2X4

    2 100

    3

    DN150

    6020

    7800

    3860x2410x4225

    HICE-150T

    2X72000

    2X7.5

    2 100

    3

    DN150

    6260

    8100

    3860x2410x4225

    HICE-165T

    2X62000

    2X4

    2 130

    4

    DN150

    6830

    9500

    4070x2610x4965

    HICE-180T

    2X75000

    2X5.5

    2 130

    4

    DN200

    6970

    9700

    4070x2610x4965

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    ICE series belong to induced draft type cross flow cooling towers. During the working process, dry cool air is inlet through wide louvers on one side of the tower, then directed through the heat exchange coils and wet deck fills across the spray water, becoming wet hot air, eventually induced draught out of the tower into the atmosphere by the fans on the top. In this process, a part of heat from the fluids inside the closed loop is transferred efficiently, and removed continuously.

    PRODUCTS ADVANTAGES

    Compatible with numerous process fluids

    (water, water/glycol, oil, other fluids)

    ◆ Capable and flexible in customized solutions

    ◆ Factory assembled for maximal installation convenience

    ◆ Modular design suits a wide range of heat rejection duties

    ◆ Compact design with minimal footprints

    ◆ Multiple corrosion resistant options

    ◆ Low sound operation options available

    ◆ More optimizing options available

    ◆ Performance and quality guaranteed

    ◆ Super long service life

    ICE cross-flow Closed Circuit Cooling Tower system applied in brewery ICE cross-flow Closed Circuit Cooling Tower System applied in chemical plant ICE cross-flow Closed Circuit Cooling Tower System applied in petroleum refineries

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