H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  Screw compressor chillers can be divided into  air-cooled screw chillers  and  water-cooled screw chillers  according to different heat dissipation methods. According to different temperatures, it can also be divided into low temperature screw chillers, and according to the protection method, there are explosion-proof screw chillers.  Explosion-proof screw chillers  are mainly used in the chemical industry. The core components-compressors of these screw chillers are screw-type series of well-known brands, such as: Taiwan Hanbell screw compressor, Germany Bitzer screw compressor, the lubrication effect is very good, and the service life is over 20 years. When the compressor lubrication system of the screw chiller is better, it can reduce the friction force, friction heat and wear of parts of the compressor, better improve the mechanical efficiency of the compressor, and increase the reliability and working life of the compressor. The compressor lubric...

  Project Overview This project is for one of the new factory buildings for one of the 500 fortune company of  Dairy industry . The factory new workshop building area is about 17,000 square meters, with a total of 2 floors. H.Stars Group has helped this company to design the energy saving cooling system by adopting  low-temperature chiller  and low-ambient temperature air source heat pump unit Project Requirement Project design This project has air conditioning system, ice water system and hot water system, which has both cooling demand and heating load. The design of a system for the project can meet all the above requirements. Under the premise of ensuring safe and reliable operation, this scheme should balance the cold and heat as much as possible to make the system efficient and energy-saving. See the system flow chart for details. The whole project designs a refrigeration station, equipped with a flooded type  water-cooled low-temperature chiller  (wit...

  The  industrial chiller machine  has become one of the essential equipment for cooling in most production enterprises, and the screw chiller is a large-scale industrial refrigeration equipment. Screw chillers are divided into air-cooled screw chillers and water-cooled screw chillers. Compressors, condensers, and evaporators are important components of screw chillers. When purchasing a screw chiller machine, you must first understand the main control parameters of the screw chiller, such as refrigeration coefficient, cooling capacity, refrigerant, input power, etc. When choosing a screw chiller, we must consider the cooling capacity, the user's operating voltage, the outlet water temperature, and the condensing temperature. Use this to determine the model of the compressor, as well as the energy of the evaporator and condenser. The actual cooling capacity of the  screw chiller equipment  is related to the following factors: 1. Chilled water outlet temperature a...

  In the process of using the chiller, have you encountered the problem that the chilled water of the chiller does not circulate? How to solve the problem of the chilled water not circulating? We all know that under normal circumstances, small industrial chillers have been equipped with chilled water circulation pumps, such as Packaged air-cooled chillers,  box-type water-cooled chillers , and large capacity chillers such as  screw chillers  and open-type water chillers. The chiller does not contain a chilled water circulating pump. At this time, when installing the cooling water system, an external chilled water circulation pump must be installed, so that the cooling water returns to the chiller for cooling after absorbing the heat of the cooling equipment, so that the cooling water supply pipe forms a circulation system. It should be noted that no matter whether the chilled water pump is inside the built-in chiller case or outside the chiller, it is recommended tha...

  An important step in the commissioning of screw chillers and scroll chillers is the charging of refrigerant. Generally,   Oumal screw chillers  are filled with the specified type of refrigerant before leaving the factory. After the chiller arrives at the chiller installation site, first check whether the screw chiller is damaged during transportation, check the high and low pressure gauges, and confirm whether the chiller is in good condition. If it is found that the refrigerant is insufficient or leaking, you need to find out the leak place and fix it, and then add the specified type of refrigerant according to the product instructions. For some screw chillers, the refrigerant needs to be emptied for transportation due to transportation problems. Therefore, after the machine arrives at the installation site, the refrigerant needs to be added again, and the appropriate refrigerant must be added according to the manufacturer's requirements. Before adding refrigerant, the...

  Both   air-cooled screw chillers   and   water-cooled screw chillers   use semi-hermetic screw compressors, and screw compressors have a high energy efficiency ratio. At present, the compressors of screw-type industrial chillers mostly use compressor brands such as Hanbell Bitzer, Fusheng, and Refcomp and other compressor brands. The main difference between the air-cooled screw chiller and the water-cooled screw chiller is the form of heat dissipation. The air-cooled screw chiller uses a fan to dissipate heat, uses air as the cooling medium, and dissipates heat through the air through a fin condenser and a low-noise fan. To cool the refrigerant, the water-cooled chiller uses water as the cooling medium, and then the cooling water cools the refrigerant. Secondly, the installation of the air-cooled screw chiller is simple and does not require a cooling tower. Because the screw chiller machine is relatively large, an external water tank is used. The air-cooled sc...

  With the continuous improvement of domestic industrial production capacity,   industrial chillers   are more and more favored by enterprises. However, during the installation process of industrial chillers, some installation problems are often encountered. So how do we properly install an industrial chiller? 1. After unpacking the new machine, first check the accessories in the box according to the list, so as to avoid the failure of normal installation of the chiller due to the lack of accessories. After confirmation, follow the installation drawings and installation sequence provided by the chiller manufacturer. The water-cooled chiller needs to be installed with a cooling water system. After the cooling tower pipeline is installed, ensure that the water circulation is normal. 2. Please ensure that the working voltage of the chiller is stable and normal. Make sure the power socket is in good contact and the ground wire is grounded reliably. It is necessary to pay atte...