H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

 What is screw chiller? A  Screw chiller  is an industrial chiller using a semi-hermetic screw type compressor. Including air cooled screw chiller and water cooled screw chiller. Screw chiller models generally range from 30HP to 300HP or even larger. Screw chiller usually use single compressor or double or four compressors. Our Screw chillers mainly use the following brands: Hanbell, Bitzer, or Refcomp. What is scroll chiller ? A scroll chiller is an  industrial chiller  using hermetic scroll type compressor. Also the sroll chillers including air cooled scroll chillers and water cooled scroll chillers. Scroll chiller models usually range from 3HP to 100HP. The Scroll types compressors brands we use are: Copeland, Danfoss, Daikin, Panasonic. Compressors qty optional. Both screw and scroll chillers have their advantages are suitable for different applications. Here are some key differences between the two: Design: A screw chiller uses a rotary screw compressor, wh...

  The  cooling tower , being exposed to outdoor environments for prolonged periods, accumulates a significant amount of sediment and debris due to its powerful fan suction. As time passes, these impurities gradually decrease the cooling tower's heat dissipation efficie ncy, resulting in clogged spray nozzles and increased infiltration of sediment and dirt into the cooling water system, severely impacting the system's refrigeration function. So how to do the regular cleaning of the cooling tower is crucial. Cleaning Treatment Process: 1. Scheme One: Shutdown Cleaning This scheme consists of sterilization and algae-killing cleaning, descaling cleaning, pre-filming, and post-cleaning cleaning stages. The entire cleaning process requires shutdown and takes about 8 days, achieving a descaling rate of over 95%. 1.1 Water Flushing: High-speed flushing (>0.15m/s) effectively removes loose dirt, sediment, detached algae, and corrosion products from the system, while checking for lea...

  The 21st century is a century of rapid technological development. The global population has exceeded 6 billion, and the shortage of land resources has increasingly become a common concern of all countries. The utilization of underground space will also be paid more attention. Country's tunnel construction has achieved leap-forward development in recent years. As of 2019, there are 56 cities in mainland China with a total line size of 6,902 kilometers. Among the 6,902 kilometers of construction lines, underground lines are 5,632 kilometers, accounting for 81.6%, and ground lines are 416 kilometers, accounting for 6%; elevated lines 853.2 Kilometers, proportion, 12.4%; The estimated demand for  water-cooled screw chiller  in this market is USD 5 million per year. At present, we have a model case and hope to achieve excellent performance in this sub-industry. H.Stars Group has invested capital in this industry since the last few years . Below is one of H.Stars Group projec...

  Industrial Chillers   are widely used, providing cooling water systems for industrial production and helping companies improve product output and quality. Therefore, we need to understand how to use chillers simply and correctly to avoid problems during use and delay production. Let us briefly understand the use of chillers from the following aspects. One: the protection of the chiller: 1. Check whether the voltage is normal, lack of phase, 2. Check and record the running current. 3. Measure and record whether the high and low pressure and temperature control temperature are normal. 4. Under normal conditions, the high pressure is 1.5MPa / the low pressure is 0.45MPa4 Check whether the interlocking control circuit device is loose and aging. 5. Check whether the oil level and oil temperature are normal. 6. Check the compressor for abnormal sound and abnormal vibration. 7. Refrigerant system test. 8. Overall commissioning and testing. 9. Regularly check whether the quality of ...