H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  Sand mill, also known as laboratory bead mill, or nano sand mill, is mainly used for wet grinding of chemical liquid products. It is mainly composed of body, grinding cylinder, sand grinding disc (lever), grinding medium, motor and feeding pump. The speed of feeding is controlled by the feeding pump. The grinding media of this equipment are generally divided into zirconia beads, glass beads, zirconium silicate beads, etc.   Since the sand mill (bead mill) is working, the material and the grinding medium will have strong collision and friction, which will generate a lot of heat energy, and the grinding inside of the sand mill should generally not exceed 65 degrees. The machine protection temperature will cause the temperature switch to act, and the sand mill will automatically stop for protection, thus affecting the production efficiency. Inversely, if the internal temperature of the grinding is too low, the viscosity of the grinding slurry will be too high, the action motor ...

  The compressor is the heart of the   chiller , and the normal operation of the compressor is the basis for the normal operation of the chiller. Therefore, if we want to understand the chiller, we must first understand the compressor. Today we will talk about the reasons for the internal protection of the semi-hermetic screw compressor. There is a thermal switch inside the screw compressor. The function of this switch is to disconnect the power supply circuit to the motor of the compressor when the temperature of the compressor exceeds the set value, and the compressor can not be turned on until the compressor is cooled down. And compressor Work. This is the internal protection of the compressor. Today we will talk about the reasons and solutions for this situation. 1.The refrigeration system is short of refrigerant. When the refrigerant is insufficient, the refrigerant returning to the compressor will be overheated, causing the compressor to heat up as a whole, causing the t...

  First of all we need to understand what is meaning by "carbon dioxide " here. Generally speaking, carbon  dioxide emissions refer to the emissions of greenhouse gases such as carbon dioxide and methane. Carbon reduction action is to reduce greenhouse gas emissions, thereby reducing the greenhouse effect. If too much greenhouse gas emissions cause the earth's average temperature to be too high, it will lead to global climate anomalies. The most direct result is the melting of glaciers in the Arctic and Antarctic, rising sea levels, submersion of land and coastal cities, and complete disappearance of most islands. Natural disasters that are sensitive to temperature changes, such as typhoons, extreme weather, and forest fires, will increase substantially. However, while we are carrying out reducing carbon emssion ,we still need confort cooling air in hot seasons. How we deisgn the system to make it greener ? Below is one of the project we have designed with  a high efficie...