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Water Cooled Screw Chiller

120 Ton Water Cooled Screw Chiller
  • 120 Ton Water Cooled Screw Chiller
  • 120 Ton Water Cooled Screw Chiller
  • 120 Ton Water Cooled Screw Chiller

120 Ton Water Cooled Screw Chiller

This 120Ton/450KW water cooled screw chiller can cool your application from 5℃ to 35 ℃.

Chiller Model:          TW-460WDH

Cooling Capacity:    460KW(395600 kcal/h)  

Refrigerant:             R22/R407c/R134A

Power Supply:         380V/50HZ /3PH (Standard)
                                208-480V/60HZ/3PH(Customized)

Compressor Brand: Hanbell/Bitzer Screw Compressor

Evaporator Type:   Shell and Tube

Condenser Type:   Shell and Tube
    Content
    ▷1.
    How Does an 120 Ton Water Cooled Screw Chiller Work?
    ▷2.
    What Are The Main Components Of Water Cooled Screw Chiller ?  

            2.1 Compressor

           2.2 Evaporator

           2.3 Condenser

           2.4 Controller Panel   
    ▷3.
    How I Can Choose The Right Water Cooled Screw Chiller?

           3.1 Calculate Right Cooling Capacity For Chillers

           3.2 Power

           3.3 Water Pump

           3.4 Refrigerant

           3.5 Evaporator Choose

           3.6 Buffer Water Tank Capacity Choose
    ▷4.
    How Choose Water Cooling Tower For Your Water Cooled Screw Chiller?
    ▷5.
    What is the Difference Between Air Cooled Screw Chiller and an Water Cooled Screw Chiller
    ▷6.
    Industrial Applications of Water Cooled Screw Chiller
    ▷7.
    Contact Us to Learn More About Our Industrial Water Cooled Screw Chiller

    120 Ton Water Cooled Screw Chiller 

    Water Cooled Screw Chiller is a type of refrigeration machine that uses recirculating water from a cooling tower in order to facilitate heat exchange. Once the water is processed from a source such as a cooling tower, river, pond, etc, it goes through the water-cooled condenser and cooling tower before it is emitted as cool air into the room or building.Compared to air cooled screw chillers, water cooled screw chillers typically offer higher cooling efficiency and lower noise levels.

    120 Ton water cooled screw chiller model TW-460WDH includes 2 UNITS Semi-hermetic screw compressor using R407C refrigerant. The refrigerant is a non-depleting ozone gas and is considered environmentally friendly. 
    120 Ton water cooled screw chiller is suitable for die casting, rubber, printing, plastic injection molding, beverage production, metal polishing, the pharmaceutical industries and other other industries.
    Tongwei is the top manufacturer and supplier of the 120 Ton water cooled chiller, located in China. With many years of experience, we guarantee the production of the best quality 120 Ton water chiller with amazing specifications and super warranty offers. 
    With the help of the efficient 120 Ton water cooled screw chiller, you can achieve effective cooling in any industry.
    As a professional chiller manufacturer ,we can provide a complete range of air-cooled screw chiller,  with cooling capacity from 100KW to 2000KW and the chiller temperature control range is +30℃ to -30℃.


    Water Cooled Screw Chiller

    1.How Does An 120 Ton Water Cooled Screw Chiller Work?


    120Ton Water Cooled Screw Chiller with Buffer Water Tank Outside Installation for Reference

    2.What Are The Main Components Of Water Cooled Screw Chiller ?

    2.1 Compressor
    The compressor is the key mover in Water Cooled Screw Chiller because it produces pressure variations to stir the refrigerant around.
    For 120 Ton chiller , which is with 2 units Hanbell Screw brand or Bizter Screw compressor for optional depends on the required refrigeration capacity, using R407C refrigerant,this brand compress is with high refrigeration efficiency,low noise ,energy saving,environmental protection and durability,safety and stability. 
    Each screw compressor with 4 steps of energy control 25%-50%-75%-100% to make sure the whole screw chiller is stable and guarantee high refrigeration performance. 

    Hanbell Screw Compressor


    Bizter Screw Compressor

    2.2 Evaporator
    The evaporator is a crucial component of  water cooled screw chiller, as it is responsible for extracting heat from the liquid being cooled,it is located between the compressor and the expansion valve. Water CooledScrew Chiller Uses highly efficient closed loop shell and tube type heat exchanger as the evaporator.

    Shell and Tube Evaporator

    2.3 Condenser

    The condenser for water cooled screw chiller is water-cooed type shell and tube for high heat exchange efficiency and good stability.Its function is to cool down the refrigerant steam released from the compressor into a liquid or gas-liquid mixture.

     
    Water-cooled type Shell and Tube Condenser

    2.4 Controller Panel
    Tongwei chillers use Integrated PLC control system with human-computer interface and big LED touch screen panel.


    PLC Controller Panel

    3.How I Can Choose The Right Water Cooled Screw Chiller?

    There are four important chiller specifications you need consider when you choose a chiller for your application :the cooling capacity for chiller ,the voltage required for operation, the associated pump horsepower and flow rate (contact us for custom selection), refrigerant, and the evaporator type.

    3.1 Calculate Right Cooling Capacity For Chillrs
    One of the most frequently ask about how we can know the cooling capacity for chillers. Let’s see the below formula.

    Cooling Capacity(kw)= Flow Rate(m3/h)*Temp Change(T1-T2)/0.86
    Heat Load= C(specific heat)* M(quality output per hour )*Temp Change(T1-T2)
    Oversize the chiller by 20% Ideal Size in KW = KW x 1.2
    Noted : T1:Incoming Water Temperature (℃)      T2:Required Chilled Water Temperature(℃)    
        
    For example, what size of chiller is required to cool 5m³ water from 25°c to 15 °c in 1 hour?
    Temperature Differential = 25℃-15℃=10℃
    Water Flow Rate = 5 m³/hour
    Cooling Capacity in KW = 5 x 10 ÷ 0.86 = 58,14 KW
    Oversize the chiller = 58.14 x 1.2 = 69.76 KW
    69.96kw cooling capacity for chiller is required.

    3.2 Power

    Different countries and regions have different standards for industrial electricity, the common power supplies are 208-230V, 380-420V,440-480V,50Hz or 60Hz, 3phase.

    Such in Philippines ,the power supply is 220V 60HZ 3PH , 380V 60HZ 3PH ,460V 60HZ 3PH;

    in Singapore and Malaysia ,the power supply is 415V 50HZ 3PH;

    in Mexico ,the power supply is 220V 60HZ 3PH;

    In USA ,the power supply is 208V 60HZ 3PH;575V 60HZ 3PH;480V 60HZ 3PH and so on

    3.3 Water Pump

    When you decide the capacity/tonnage of the chiller, we will recommend you the suitable pump in KW,which standard water pump is about 2 bar .If you need more high water pressure , please us when you inquiry.

    3.4 Refrigerant

    R22, R407C, R404A, R134A are optional choices.

    R22: good cooling effect, but R22 is considered a powerful greenhouse gas, so it’s forbidden in most countries.

    R407C: a good replacement for R22, good cooling effect.

    R404A: suitable for application that requires low temperature(below -10°c).

    R134A: a non-flammable gas used primarily as a “high-temperature” refrigerant, suitable for air-cooled chiller working at a high ambient temperature above 50℃.


    3.5 Evaporator Choose

    Air cooled screw chiller generally uses one evaporators: just is shell and tube heat exchanger.(See Above 2.2)

    Shell and tube type evaporator, which requires an additional water buffer tank to connect.

    3.6 Buffer Water Tank Capacity Choose

    Buffer tank’s capacity can be customized according to specific needs. It can buffer a larger heat load, store more chilled water .


    304 Stainless Steel Water Tank 

    4.How Choose Water Cooling Tower For Your Water Cooled Screw Chiller?

    There are three important temperature factors you need to consider when choosing a cooling tower for water cooled screw chiller: inlet hot water temperature, outlet cold water temperature, and wet bulb temperature. The hot water temperature is that which enters the tower. The cold water temperature is that which leaves the water while the wet bulb temperature refers to the prevailing temperature of the geographic region where the tower is located.

    Approach is the term used to refer to the difference between the temperatures of the water source as it enters the tower versus the temperature of the water once it has left the tower. This is a crucial determiner of the effective of the heat exchange process.

    To choose the right cooling tower, mechanical efficiency should be given priority. This refers to the amount of fan power needed to circulate ambient air within the cooling tower. The range – or the difference in temperature between hot and cold water – is also crucial as it will impact energy usage.

    so to find out how to choose a cooling water tower with sufficient cooling capacity, you should understand what circumstances require the use of a cooling tower. Please find the below water cooling tower is suitable for water cooled screw chiller :

    Cooling Capacity of Chiller                            Water Cooling Tower Capacity 


    70HP(230KW/65 Ton)                                        80 Ton


    80HP(250KW/70 Ton)                                        100 Ton


    90HP(300KW/85 Ton)                                         100 Ton


    100HP(350KW/100 Ton)                                     125 Ton


    110HP(375KW/110 Ton)                                      125 Ton


    120HP(415KW/117 Ton)                                      150 Ton


    140HP(470KW/130 Ton)                                       175 Ton


    160HP(500KW/140 Ton)                                       175 Ton


    170HP(560KW/160 Ton)                                        200 Ton


    180HP(590KW/165 Ton)                                        200 Ton


    200HP(610KW/173 Ton)                                        250 Ton


    Water Cooling tower

    5.What is the Difference Between Air Cooled Screw Chiller and an Water Cooled Screw Chiller

    Air-cooled and water-cooled screw chillers are both types of chillers used for cooling applications in various industries.
    The main difference between air cooled screw chiller and water cooled screw chiller is condenser :
    The condenser of an Air-Cooled Screw Chiller is cooled by the ambient air,which the heat generated during the cooling process is dissipated into the surrounding air;

    Water Cooled Screw Chiller with a shell and tube water-type condenser that is attached to a cooling tower and is typically used in medium and wide installations where water is available.So Water cooled screw chiller need connect with water cooling tower and water cooling pump outside , the installation is more trouble than air cooled screw chiller .
    But if your ambient temperature is very high above 50℃,we suggest you use water cooled screw chiller ,as air cooled screw chiller may consume more energy to achieve the same cooling capacity due to the limitations of air as a heat exchange medium and water cooled screw chiller uses constant water source for more stable and efficient heat dissipation,so in high ambient temperature , water cooled screw chiller is more energy-efficient and better choice for your application .


    Air Cooled Screw Chiller 


    6.Industrial Applications of Water Cooled Screw Chiller

    Water-cooled screw chillers are very popular refrigeration system that can provide steady and reliable water cooling sources for both industrial and commercial usage.
    Water cooled screw chillers are also widely used in plastic industry.food industry and Cement/ Concrete Cooling.

    6.1 Plastic Industry 

    Water-cooled screw chillers are also widely used in plastic processing and plastic industry including plastic injection molding, plastic extruders, and extrusion lines, blowing molding machines.
    The function of using an water-cooled screw chiller is to provide the cooling water flow rate for cooling the plastic mold temperature down to make sure the product quality and production efficiency.


    Water Cooled Screw Chiller For Plastic Industry  

    6.2 Food Industry 

    Water cooled chiller chillers are important in the food industry to maintain temperature control, preserve quality, support various production processes, and comply with regulations.

    Water Cooled Screw Chiller For Food Industry

    6.3 Cement /Concrete Cooling

    Cement production involves a series of chemical reactions that generate significant amounts of heat.Cement is usually mixed with water to from the material known as concrete whose temperature is to a great extent determined by the water used in the chemical combination of cement aggregates and water.

    Water Cooled Screw Chiller For Cement /Concrete Cooling

    Contact Us to Learn More About Our Industrial Water Cooled Screw Chiller

    Don’t delay in making the best decision for your manufacturing business and your future by increasing your production capabilities with an water cooled screw chiller. Contact us today for more information on a chiller.
    Our probessional team will help you with any questions you have on our chiller units. We look forward to hearing from you!


           120 Ton Water Cooled Screw Chiller Technical

                  Specifications 
    MODEL:TW-460WDH

    Model

    TW-460WDH

    nominal cooling capacity

    KW

    460

    Ton

     130

    Kca/h

     395600

    Chilled Water Temperature Range

    5~35℃

    Max power consumption

    kw

    102

    Full load

    Amp

    89

    power source

     

    3PH - 380V - 50HZ (Standard)

    3PH - 220-480V - 60HZ 

    refrigerant

    type

     

    R407c

    Charge volume

    kg

    38*2

    control

     

    Electric thermal expansion valve

    compressor

    type

     

    Semi-hermetic screw

    Power

    KW

    51*2

    Start mode

     

    Y-△

    Capacity control

     

    0-25-50-75-100%

    condenser

    type

     

       Water cooled shell and tube type condenser

    Cooling tower water flow rate 

    m3/h

    97

    Pressure

    Kpa

    42

    inlet and outlet connection


    Inch

    6

    evaporator

    type

     

     Dry shell and tube type evaporator

    Chilled water flow rate

    m3/h

    79

    Pressure

    KPa

    40

    inlet and outlet connection

    Inch

                                5

    safety devices

    Over load relay for compressor ,over-current protection,high and low pressure protection,over-temperature protection,traffic protection, three-phase error protection relay, coolant level switch, flow switch

    dimension

    mm

    2950*810*1750

    Machinery weight

    kg

    2450

    Running Weight

    kg

    2810

     

    1 . Testing results under above conditions: Inlet/outlet chilled water temperature 12℃/7℃, condensing temperature 45℃.

    2. The above parameters will be updated continuously. If you have special request, please send your technical requirements before placing an order.
    1.How does a chiller system work?
    Chiller has two circulation,one is process water circulation,the other is refrigerant gas circulation.Heat picked up from the process.Heat transfers to refrigerant circulation.Heat is remove to air or water.

    2.How to calculate right cooling capacity for chillers?
    One of the most frequently ask about how we can know the cooling capacity for chillers. Let’s see the below formula.
    Cooling Capacity(kw)= Flow Rate(m3/h)*Temp Change(T1-T2)/0.86
    Heat Load= C(specific heat)* M(quality output per hour )*Temp Change(T1-T2)
    Oversize the chiller by 20% Ideal Size in KW = KW x 1.2
    Noted : T1:Incoming Water Temperature (℃)      T2:Required Chilled Water Temperature(℃)    
        
    For example, what size of chiller is required to cool 5m³ water from 25°c to 15 °c in 1 hour?
    Temperature Differential = 25℃-15℃=10℃
    Water Flow Rate = 5 m³/hour
    Cooling Capacity in KW = 5 x 10 ÷ 0.86 = 58,14 KW
    Oversize the chiller = 58.14 x 1.2 = 69.76 KW
    69.96kw cooling capacity for chiller is required.

    3.Types of chiller system?
    There are two types of chiller :Air Cooled Screw Chiller and Water Cooled Screw Chiller.
    Water cooled chiller needs a separated water cooling tower and water cooling pump ,if you don‘t have exsiting water cooling tower,we suggest you use air cooled chiller; But if your ambiemt temperature is very high above 55℃ ,we suggest you use water cooled chiller , as it is easier to dissipate heat for water cooled chiller with water cooling tower.

    4.Cooling capacity unit conversion?

       1 KW=860 kcal/h ; 

       1 TON=3.517 KW; 

       1 KW=3412 Btu/h;

    5.This chiller could do heat recovery?
    Yes,please kindly send us the temp and water volume per hour.

    6.Chiller maintenance?
    Step 1: Keep Tubes Clean
    Step 2: Ensure a Leak-free Unit
    Step 3: Sustain Proper Water Treatment(prevent scale, corrosion)
    Step 4: Analyze Oil and Refrigeran
    Please submit your basic information, we will contact you as soon as possible!

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