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JLSF-70D Industrial Air Cooled Water Chiller With Screw Compressor Overload Protection

Dongguan Jialisheng Refrigeration Equipment Co., Ltd.

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JLSF-70D Industrial Air Cooled Water Chiller With Screw Compressor Overload Protection

Country/Region china
City & Province dongguan guangdong
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Product Details

JLSF-70D Air Cooled Screw Chiller Intelligent Equipment, Injection Molding Machine, Injection Molding Accessories

 

Product Description:


Air-cooled screw chiller is a kind of industrial refrigeration and commercial air conditioning equipment, mainly composed of evaporator, compressor, condenser and expansion valve and other components. It uses a screw compressor to compress the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure gas, then releases heat to the outside through the condenser, and finally reduces the temperature and pressure of the refrigerant through the expansion valve to return to the evaporator for recycling.

During operation, the air-cooled screw chiller absorbs the heat in the outdoor air, cools the cooling water and circulates it to the room, so as to reduce the indoor temperature. Its cooling efficiency is greatly affected by factors such as outdoor temperature and humidity, so its effect may be limited in high-temperature and high-humidity environments.

Compared with water-cooled chillers, air-cooled screw chillers do not require an additional cooling water system, so they are simpler and more cost-effective. However, since it uses outside air for cooling, it can be problematic in areas with high air pollution or where indoor air quality needs to be maintained.


 

 

Production Features:


Features of the air-cooled screw chiller include:

1.No additional cooling water system: Compared with water-cooled chillers, air-cooled screw chillers do not require additional cooling water systems, so they are simpler and cost-effective.

 

2.Wide range of applications: Air-cooled screw chillers are suitable for various types of buildings and places, such as commercial office buildings, hotels, hospitals, schools, etc.

 

3.High refrigeration efficiency: The air-cooled screw chiller uses a screw compressor, which has the advantages of high refrigeration efficiency, low noise, and low maintenance cost.

 

4.Easy installation: The installation of the air-cooled screw chiller is relatively simple and does not require additional equipment such as water pipes and water pumps.

 

5.High reliability: The air-cooled screw chiller is designed and manufactured with high precision, and has good stability and reliability.

 

6.Strong adaptability: The air-cooled screw chiller has strong adaptability and can adapt to different environmental conditions and load changes.

 

 

 

Working Principle:


The working principle of the air-cooled screw chiller is as follows:

Compression process: The refrigerant is compressed into a high-temperature and high-pressure gas in the screw compressor, and then enters the condenser.

 

Condensation process: The high-temperature and high-pressure gas is cooled in the condenser to become a high-pressure liquid, and at the same time release heat, which is dissipated into the outdoor air through fans and radiators.

 

Expansion process: After the high-pressure liquid is decompressed by the expansion valve, it becomes a low-temperature and low-pressure liquid, and then enters the evaporator.

 

Evaporation process: The low-temperature and low-pressure liquid evaporates in the evaporator, absorbs the heat in the room, cools down the cooling water in the room, and circulates it to the room, thereby achieving the purpose of reducing the indoor temperature.

 

Techinical Parameters:

 

ModelJLSF-30DJLSF-40DJLSF-50DJLSF-60DJLSF-70DJLSF-80DJLSF-90DJLSF-100DJLSF-110D
Cooling capacityKW/h94.8126.4158.0189.6221.2252.8284.4316.0347.6
Kcal/h84,000112,000140,000168,000196,000224,000252,000280,000308,000
Temperature range5℃~35℃(Below 0℃ can be customized)
Power supply3N-380V/415V        50HZ/60HZ
Total powerKW24.833.741.545.257.4626972.583.6
Running currentA4156.569.675.996.586.7116.2122111.3
Chilled waterm³/h1519.624.22935404550.253.8
compressortypeSemi-hermetic screw type
 Start methodY-△
 capacity adjustment0,25,50,75,100
 input powerKW23.330.738.542.251.4566366.373
Frozen oiltypeHBR-A01
 filling volumeL778121616161618
refrigeranttypeR-22/R407C
 control methodTemperature Sensing External Pressure Equalizing Expansion Valve
Evaporatorfilling volumeKG162227323642465256
 typeshell and tube
condenserDiametermmDN65DN80DN80DN80DN80DN100DN100DN100DN125
 typeHigh-efficiency copper-sleeved aluminum-fin type + low-noise external rotor fan
 Cooling air volumem³/h280003600045000550063000740008300092000102000
protective deviceHigh and low voltage switch, antifreeze protection, soluble plug, safety valve, overload protection device, coil overheat protector, automatic temperature protection switch, etc.
DimensionsLmm220023002500280028002910310031503150
 Wmm110011001200120018002050205020502050
 Hmm182020302030203021002100210021002100
weightKG92011201350156017801920223024502720

 

 

ModelJLSF-120DJLSF-130DJLSF-150DJLSF-160DJLSF-180DJLSF-200DJLSF-240DJLSF-260DJLSF-300D
Cooling capacityKW/h379.2410.8474.0505.6568.8632.0758.4821.6948.0
Kcal/h336,000364,000420,000448,000504,000560,000672,000728,000840,000
Temperature range5℃~35℃(Below 0℃ can be customized)
Power supply3N-380V/415V 50HZ/60HZ
Total powerKW149169195.1204.8240247.5282309.4364.5
Running currentA88.6100.5114.8120.5141.6145.6165.5182214.4
Chilled waterm³/h5965747990101119130152
compressortypeSemi-hermetic screw type
 Start methodY-△
 capacity adjustment0,25,50,75,100
 input powerKW79.688.5102.8108.5126.6130.6150.5167199.4
Frozen oiltypeHBR-A01
 filling volumeL181823242428323236
refrigeranttypeR-22/R407C
 control methodTemperature Sensing External Pressure Equalizing Expansion Valve
Evaporatorfilling volumeKG6266758092103121126150
 typeshell and tube         
condenserDiametermmDN1250DN150DN200
 typeHigh-efficiency copper-sleeved aluminum-fin type + low-noise external rotor fan
 Cooling air volumem³/h112000122000141000150000169000189000223000245000285000
protective deviceHigh and low voltage switch, antifreeze protection, soluble plug, safety valve, overload protection device, coil overheat protector, automatic temperature protection switch, etc.
DimensionsLmm350038004120425046804680523056306550
 Wmm210021002100210021002100210021002210
 Hmm212021202120212021202120212021202150
weightKG305033603670355041204230465055707420

 


Application Industry:


The air-cooled screw chiller is a chiller that uses a screw compressor and an air-cooled condenser, and is suitable for the following industries:

 

1.Industrial manufacturing: In the industrial manufacturing process, many equipment need to be cooled, such as plastic processing equipment, metal processing equipment, chemical equipment, etc. At this time, it is necessary to use air-cooled screw chillers to provide cooling services for these equipment.

 

2.Commercial buildings: Air-cooled screw chillers can provide refrigeration services for large commercial buildings, factories and public places, such as shopping centers, supermarkets, hotels, hospitals, office buildings, etc.

 

3.Pharmaceutical industry: In the pharmaceutical industry, many production processes need to control temperature and humidity to ensure product quality and safety, so chillers are needed for cooling and humidity control.

 

4.Food industry: In the food industry, many production processes require temperature control, such as wine, beverages, dairy products, etc., and chillers are required for refrigeration.

 

5.Electronics industry: In the electronics industry, many devices need to be cooled, such as electronic components, semiconductor equipment, etc., and chillers are required for cooling.

 

In short, air-cooled screw chillers are suitable for various industries and occasions that require refrigeration, such as industrial manufacturing, commercial construction, pharmaceutical industry, food industry, electronics industry, etc.

 

      
  Automotive Manufacturing           Chemical Engineering                  Electronics Industry                Electroplating Industry

 

     

  Injection Molding Industry           Pharmaceutical Industry           Plastic Packaging Industry               Printing Industry

 

 

Upport and Services:


Chiller technical support and service includes:

1. 24/7 customer support
2. Remote guidance installation and maintenance
3. Remote Diagnostics and Troubleshooting
4. Phone/Email Advice and Guidance
5. User friendly documentation and manuals
6. Software Updates and Upgrades
7. Cost price of spare parts and consumables

 

 

Packing and Shipping:


Chillers are packaged and shipped in standard plywood wooden boxes. All components are secured and protected with a film, and the unit is then placed on a pallet for easy transport. And affix the shipping mark information label on the wooden box to ensure correct delivery.

 

 

What are the advantages of air-cooled screw chillers compared with water-cooled chillers?


Air-cooled screw chillers and water-cooled chillers are two common types of chillers, and they have some differences in cooling methods and characteristics. Here are some advantages of air-cooled screw chillers over water-cooled chillers:

1. Simplified installation: The air-cooled screw chiller does not require additional cooling water sources, so there is no need to lay cooling water pipes and cooling towers during installation. This makes the installation process of air-cooled screw chillers more simplified and economical.

 

2. Eliminate water treatment: Water-cooled chillers need to deal with cooling water quality, including preventing scale, corrosion, and microbial growth. In contrast, the air-cooled screw chiller does not need to deal with the cooling water quality, which reduces the cost and workload of water treatment equipment and maintenance.

 

3. Save water resources: Water-cooled chillers require a large supply of cooling water, which means that a large amount of water resources need to be consumed. The air-cooled screw chiller is cooled by air and does not require a large amount of water resources. It is more suitable for areas where water resources are scarce or where environmental protection is required.

 

4. More flexible use of space: Water-cooled chillers require facilities such as cooling towers and cooling water pipes, which occupy a certain amount of space. The air-cooled screw chiller does not need these facilities and can be placed more flexibly in places with limited space.

 

5. Lower operating costs: Since air-cooled screw chillers do not require additional cooling water sources and water treatment equipment, they are generally more economical in terms of operating costs than water-cooled chillers. In addition, the maintenance and cleaning work of air-cooled screw chillers is relatively small.

 

It should be noted that the air-cooled screw chiller may be slightly inferior to the water-cooled chiller in terms of heat dissipation effect and operating temperature. In specific industrial applications, water-cooled chillers may be more suitable if the ambient temperature is high or the temperature control requirements are high. Therefore, factors such as specific application requirements, environmental conditions, and economic factors need to be considered when selecting the appropriate chiller type.

 

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