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

Short Description:


Process Principle

Configurations

Technical Parameters

work Theory

Feactures

Applications

Product Tags

Product performance description

Comparing to the open-system cooling towers, easier to maintain is a distinct feature of ICE’s evaporative closed circuit coolers which are an excellent option for any cooling system with other benefits following:
Reduce water consumption, save energy and equipment maintenance.
Avoid the significant risk of fouling factors in heat exchangers or similar facilities.
Significant installation and operational costs savings (no need of pump, valves, additional pipe works and etc.)
Wider application environment – closed-loop equipment is available to operate in sub-freezing outdoor temperatures. It is highly versatile from cooling industrial process equipment to maintaining temperatures in data centers and computer rooms to chemical manufacturing.

Structure chart of ICE counter-flow Closed Circuit Cooling Tower

ICE Evaporative counter-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
ICE evaporative closed loop cooling towers installed basket type spray nozzles remains clog free while providing even and constant water distribution to maximize the heat transfer between air, water and the process fluid to increase the heat rejection efficiency.
The spray nozzles mounted in corrosion-free water distribution pipes for an easy disassembly.

Red Copper Tube
The key component tub is applying with high quality T2 type red copper which purchased from famous brand manufacturer to ensure a reliable and stable performance of our equipments.

Drift Eliminator
Constructed and made of PVC to reduce water loss during wet operation and limits the drift rate to lower water consumption and avoid scale.

Louver with Damper
There is a damper serves to control the air flow during the operation of cooling towers been applied in certain water, air heat pump system or similar cooling process to avoid the heat loss during the downtime of equipment especially in cold weather.

Electric Heater
When the atmosphere temperature is above 0℉(-18℃), with the electric heater the basin water temperature will not lower than 40℉(4.4℃). There is a low water protection set in the heater to ensure it will only work when it was immersed in water. All the elements regarding electric heater been installed inside the case and adapt for the outdoor operation.

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

Casing Material
ICE standard cooling towers use the latest highly corrosion-resistant coated steel sheet which consist zinc as the main substrate, in combination with Al, Mg and a trace amount of silicon. The service life is 3~6 times longer comparing with normal aluminized zinc steel sheet and the heat-resisting and thermal resistance feature is also excellent.

ICE counter-flow Closed Circuit Cooling Tower Structure Feature Picture
ICE Counter-flow Closed Circuit Cooling Tower system applied in steel factory
ICE Counter-flow Closed Circuit Cooling Tower system applied in aluminium manufacturer
ICE Counter-flow Closed Circuit Cooling Tower system applied in heat-engine plant

The cooled dry air enters through the louvers on each sides of the tower in the bottom, and drawn upwards and over the coils by the force from the axial fan which installed on the top, agitating the falling water (came from the water distribution system) and increasing the transfer efficiency of heat in a state of hot wet air discharged out of the tower into the atmosphere. During this working process, a small amount of the re-circulating water evaporates due to latent heat transfer through the tube and walls of the coils, removing heat from the system. In this mode of operation, due to the evaporative performance lower the leaving water temperatures and the fan energy been saved.


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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

    sdafa

    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

    sdar

    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

    saag

    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

    asf

    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

    vdsh

    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

    asd

    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 Counter-flow Closed-circuit Cooling Tower

    Model

    Fan

    Spraying Pump

    Inlet/outlet pipe size

    Supply pipe size

    Working Pressure Range

    Net Weight

    Function Weight

    Dimension

    Air Volume

    Power

    Flow Rate

    Power

    m3/h

    KW

    m3/h

    KW

    DN

    DN

    Mpa

    KG

    KG

    L*W*H(mm)

    ICE-6T

    12000

    0.75

    11

    0.75

    DN65

    DN25

    0.05-0.35

    390

    707

    1600x980x1850

    ICE-10T

    12000

    0.75

    11

    0.75

    DN65

    DN25

    0.05-0.35

    408

    739

    1600x980x1850

    ICE-15T

    12000 x2

    0.75×2

    25

    1.5

    DN65

    DN25

    0.05-0.35

    530

    1074

    2350x1000x1900

    ICE-20T

    12000 x2

    0.75×2

    25

    1.5

    DN65

    DN25

    0.05-0.35

    550

    1109

    2350x1000x1900

    ICE-30T

    16800 x2

    1.1×2

    25

    1.5

    DN80

    DN25

    0.05-0.35

    776

    1662

    2850x1170x2750

    ICE-40T

    16800 x2

    1.1×2

    25

    1.5

    DN80

    DN25

    0.05-0.35

    822

    1737

    2850x1170x2750

    ICE-50T

    22000 x2

    1.5×2

    25

    1.5

    DN100

    DN25

    0.05-0.35

    1027

    1976

    2850x1170x3150

    ICE-60T

    22000×2

    1.5×2

    25

    1.5

    DN100

    DN25

    0.05-0.35

    1077

    2058

    2850x1170x3150

    ICE-70T

    22000 x2

    1.5×2

    44

    2.2

    DN125

    DN25

    0.05-0.35

    1350

    2562

    2850x1400x3290

    ICE-80T

    22000×2

    1.5×2

    44

    2.2

    DN125

    DN25

    0.05-0.35

    1418

    3051

    2850x1400x3290

    ICE-100T

    16800 x4

    1.1×4

    88

    2.2

    DN150

       DN40

    0.05-0.35

    2174

    3873

    3200x1800x3490

    ICE-120T

    16800 x4

    1.1×4

    88

    2.2

    DN150

    DN40

    0.05-0.35

    2253

    4221

    3200x1800x3490

    ICE-140T

    22000 x6

    1.5×6

    88

    2.2

    DN150

    DN40

    0.05-0.35

    2356

    4560

    4500x2100x4200

    ICE-160T

    22000 x6

    1.5×6

    88

    2.2

    DN150

    DN40

    0.05-0.35

    2491

    4685

    4500x2100x4200

    ICE-180T

    22000×6

    1.5×6

    150

    3

    DN150

    DN40

    0.05-0.35

    2595

    5534

    4500x2100x4200

    Technical Parameters of Counter-flow Closed-circuit Cooling Tower

    Model

    Fan

    Spraying Pump

    Inlet/outlet pipe size

    Supply pipe size

    Working Pressure Range

    Net Weight

    Function Weight

    Dimension

    Air Volume

    Power

    Flow Rate

    Power

    m3/h

    KW

    m3/h

    KW

    DN

    DN

    Mpa

    KG

    KG

    L*W*H(mm)

    ICE-200T

    75000×2

    5.5×2

    150

    3

    DN200

    DN40

    0.05-0.35

    3016

    6439

    4500x2100x4377

    ICE-240T

    75000×2

    5.5×2

    150

    3

    DN200

    DN40

    0.05-0.5

    3688

    7777

    5100x2300x4896

    ICE-280T

    100000 x2

    7.5×2

    190

    4

    DN250

    DN65

    0.05-0.5

    4186

    9654

    5100x2300x4896

    ICE-300T

    100000 x2

    7.5×2

    190

    4

    DN250

    DN65

    0.05-0.5

    4362

    10174

    5100x2300x4896

    ICE-320T

    100000 x2

    7.5×2

    190

    4

    DN250

    DN65

    0.05-0.5

    4539

    10694

    5100x2300x4896

    ICE-340T

    100000 x2

    7.5×2

    190

    4

    DN250

    DN65

    0.05-0.5

    4715

    11214

    5100x2300x4896

    ICE-360T

    125000 x2

    11×2

    190

    4

    DN250

    DN65

    0.05-0.5

    4892

    11734

    5100x2300x4896

    ICE-380T

    125000×2

    11×2

    280

    5.5

    DN250

    DN65

    0.05-0.5

    5068

    12254

    5800x3000x4910

    ICE-400T

    125000 x2

    11×2

    280

    5.5

    DN250

    DN65

    0.05-0.5

    5245

    12774

    5800x3000x4910

    ICE-420T

    125000×2

    11×2

    280

    5.5

    DN250

    DN65

    0.05-0.5

    5421

    13294

    5800x3000x4910

    ICE-440T

    140000 x2

    11×2

    280

    5.5

    DN300

       DN65

    0.05-0.5

    5597

    13814

    5800x3000x4910

    ICE-460T

    140000 x2

    11×2

    350

    7.5

    DN300

    DN65

    0.05-0.5

    5774

    14334

    5800x3000x4910

    ICE-480T

    140000 x2

    11×2

    350

    7.5

    DN300

    DN65

    0.05-0.5

    5950

    14853

    5800x3000x4910

    ICE-500T

    140000 x2

    11×2

    350

    7.5

    DN300

    DN65

    0.05-0.5

    6127

    15373

    5800x3000x4910

    ICE-520T

    180000×2

    15×2

    350

    7.5

    DN300

    DN65

    0.05-0.5

    7065

    17652

    6200x3200x4950

    asfaf

    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 Counter-flow Closed Circuit Cooling Tower system applied in aluminium manufacturer ICE Counter-flow Closed Circuit Cooling Tower system applied in heat-engine plant ICE Counter-flow Closed Circuit Cooling Tower system applied in steel factory55

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