H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  In 2004, the Ministry of Construction issued a document that chilled water must be used in the concrete mixer projects such as subways, bridges, and dams. The chilled water varies according to the outdoor temperature across the country, and the general temperature is 2℃-7℃ . H.Stars Group  has not been involved in this market before, and customers know little about chillers, so ordinary customers buy ice cubes and ordinary tap water to solve the problem according to production needs. According to relevant statistics, this market is worth more than 3 million dollars per year. At present, only a few  concrete chiller plant  pays attention to this market. Since the chilled water temperature in this market is 2℃-7℃, the chillers are generally ammonia machines. Competing with other chiller manufacturers in this market, H.Stars Group concrete water chiller can directly supply 2°C water with advantages in terms of technology, equipment, solutions, and services. As long as...

  Introduction: Winter is coming, and the ambient temperature is about to drop below zero. This will cause great damage to the chillers, water pumps, cooling towers, terminals and other equipment. In order to ensure that chillers work normally during winter, the chiller has to survive in the low temperature environment, because it will cause a great loss to users if the unit is not maintained with proper seasonal shutdown. First of all, when those chillers are not going to turn on during winter for seasonal shutdown, water among chillers, pipes, pumps, cooling towers and terminals must be drained out clean in advance when the ambient temperature is below zero. How are we going to do for the water chiller HVAC system shutdown in winter ? Here are the tips below for seasonal water chiller system shutdown in winter how to drain out the water from HVAC system. 1.  Shell and Tube Condenser : Open the end cap of the water pipe.  After opening, pay attention to the end cover and...

  From the perspective of design to talk about the special "intelligent" creation of H.Stars Group,which is related to compressor type selection. According to the conventional thinking, the choice of compressor type is not much difficult , small unit with scroll compressor, medium unit with screw compressor, large unit with centrifugal compressor. Why mention the compressor type choice again? Let's do a simulation selection. Suppose we need a  300KW water-cooled chiller Screw Type，40STD-280WS4，Cooling Capacity:284kW，Price is 15200USD Scroll Type，20STB-100WFO4，Cooling Capacity:300kW，Price is 13500USD From the data, the cooling capacity of the scroll type chiller is 6% larger than the  screw type chiller , and the price of the scroll type chiller is 13% lower than the screw type chiller. We believe you have a clear idea of which product is more competitive. It is also applied to  Air cooled chiller .The following introduces the scroll type chiller and screw type chille...

  We all know that winter swimming has many advantages: 1. It can enhance cardiovascular function. 2. The stimulation of cold water can close the peripheral blood vessels, increase the blood supply of important organs such as heart, brain, liver and spleen, so that more oxygen can be delivered to brain cells in time, which is conducive to the elimination of nervous system fatigue. 3. The skin of those who insist on winter swimming is ruddy, shiny and elastic. And people also hope to enjoy the fun of swimming in winter, but not everyone can bear it.  Hstars group constant temperature swimming pool heat pump  can be a good solution. 1. Demand analysis of swimming pool with constant temperature Constant temperature swimming pool, also known as indoor constant temperature swimming pool; that is, the temperature of the water in the pool heating system is maintained at 26~28℃, which is suitable for the temperature of the human body. When the indoor swimming pool is designed, th...

  In the production process of rubber and plastic seals and special rubber products, 15℃ constant temperature water is required to cool the rubber mixing process, so that the semi-finished product shape is fixed and instantly formed. If accurate low-temperature water cooling is not provided, the output and quality of the product will be seriously affected . At this time, a   rubber-plastic screw chiller   is needed to produce 15℃ constant temperature water. The rubber-plastic screw chiller is the energy-intensive part of the rubber seal. How can we make the cooling system work and save energy? H.Stars Group  has cooperated with internationally renowned rubber sealing materials and special rubber companies such as Zhongding Group and Cooper Group for 15 years. In this process, H.Stars Technology has accumulated a lot of experience, the choice of the chiller of the H.stars chiller manufacturer and the rationality of the circulation design are the key, and summarizes th...

  The   plate and shell heat exchanger   is composed of a plate bundle composed of a plate group and a shell. It is a plasma arc welded corrugated plate group placed in the shell instead of the heat exchange tube of the original shell and tube heat exchanger. The plate group is used as the heat exchanger of the heat transfer element. The two fluid media respectively flow through the plate side and the shell side to achieve the purpose of heat exchange. When the fluid flows through the corrugated plates, it can produce high turbulence in the countercurrent direction, which greatly improves the exchange rate. Thermal efficiency, small terminal temperature difference, good sealing, high temperature and high pressure resistance, compact structure, small size, etc. The product can be widely used in refrigeration and air conditioning, electric power, metallurgy, petrochemical, pharmaceutical, shipbuilding, food and other fields. The industrial plate and tube heat exchanger can ...

  The four major components of the refrigeration system are compressor, evaporator, condenser and throttling device. The role of the condenser in the refrigeration system is mainly to cool and liquefy the gaseous refrigerant in the high temperature and high pressure state discharged from the compressor, so as to meet the requirements of the circulating use of the refrigerant in the system. The selection of the temperature difference between the condensing temperature and the coolant inlet and outlet involves economic issues in the refrigeration system. Increasing the condensation temperature and reducing the temperature difference between the coolant inlet and outlet can increase the heat transfer temperature difference, reduce the required heat transfer area, and reduce the investment cost of heat exchange equipment. However, lowering the condensing temperature can reduce the power consumption of the refrigeration compressor. The greater the temperature difference between the cool...