The core problem of compressor oper
Two products support half of Danfoss' refrigeration business? Valves and compressors. valve Danfoss was founded in 1933. At the beginning of its establishment, its founder Metz Clausen invented the unique thermal expansion valve product, leading the industry trend. The technical content of this expansion valve was at the forefront of the world at that time, and became the leading product of Danfoss.
Since then, refrigeration and air-conditioning products derived from valves have gradually become the leading industry of Danfoss. Danfoss' first bucket of gold is earned through the production and sales of thermostatically controlled expansion valves, one of the key components of refrigerators, air conditioners and other equipment. So far, the output value of refrigeration and air-conditioning equipment and components accounts for about half of Danfoss' total output value. For more than half a century of development, Danfoss has sold more than 100 million valves worldwide, and has experienced several generations of innovation and verification. The Danfoss expansion valve series has both stable and efficient performance, and has become the most widely used product in the Danfoss refrigeration product series. In the next two weeks, okmarts.com, an expert who has been cultivating valve products for two decades, will take you in-depth understanding of Danfoss expansion valve products and applications. Use is the king: "Thermal expansion valve superheat adjustment" Introduction: The performance of the thermal expansion valve depends on the correct "superheat adjustment". If the superheat is too low, it will cause liquid backflow and affect the regulation ability and energy efficiency; if the superheat is too high, it will result in flow limitation, low evaporator area usage, and lower evaporation temperature. In this theme live broadcast, application experts will introduce the expansion valve superheat and cooling capacity curves, MSS concepts, and give common adjustment suggestions.
New technology rising from the ground: "Danfoss ETS Hummingbird® Innovative Electronic Expansion Valve" Introduction: ETS Hummingbird® is an electronic stepper electric valve suitable for air conditioning and refrigeration applications. It can accurately inject liquid refrigerant into the evaporator, and ensure the dual-flow electromagnetic seal closing function, thereby providing smooth system operation and accurately adjusting the flow rate. ETS Colibri® is compatible with electronic control solutions provided by Danfoss and other manufacturers. Compared to traditional expansion valve equipment, ETS Hummingbird® is smaller in size and lighter in weight. Compared to the equipment provided by the solutions on the market, ETS Colibri® valves are generally 80% lighter.
compressor Danfoss has been designing, developing, and producing commercial refrigeration scroll compressors since the early 1990s. At present, Danfoss has three production bases worldwide, located in the United States, France, and China. Among them, China has the most complete compressor series. It is a leading domestic industrial production quality control standard, and has a strong global R&D base. The test base covers more than half of the earth's after-sales testing centers. Smart and efficient is the general trend: "Danfoss VZH full range inverter compressor" Introduction: Danfoss Inverter Scroll Compressor VZH is the third-generation scroll compressor that provides inverter technology for commercial air conditioning applications. The cooling range is from 4 to 52 TR (15 – 184 kW), enabling precise cooling and humidity management, low starting current, and further partial load and seasonal energy efficiency improvements. The guest speaker in this issue, Mr. Chen Qi, has 20 years of commercial refrigeration and air conditioning application experience. He will focus on the VZH full range of inverter compressors and supporting CDS803 303 inverters to analyze the hottest inverter solutions for commercial scroll compressors.
Theme: "Cooling Room Control Solution in Large Refrigeration System" Introduction: Danfoss provides comprehensive solutions for large-scale refrigeration systems. In addition to valves, sensors and other products based on the bottom of the control system, Danfoss also provides comprehensive, reliable and professional refrigeration control subsystem solutions and comprehensive distributed control solutions for refrigeration system control. The Danfoss cold room control scheme is used for the end temperature refrigeration control of large refrigeration systems. The control subsystem controls the temperature of the cold room by receiving the system status signal sent by the temperature and other sensors, and can implement various functions in the cold room of the cold store, ensure the automatic defrosting of the evaporator, and realize the safe, reliable and efficient operation of the system .
Theme: "Danfoss large-scale refrigeration system barrel pump control solution" Introduction: Danfoss provides comprehensive solutions for large-scale refrigeration systems. In addition to valves, sensors and other products based on the bottom of the control system, Danfoss also provides comprehensive, reliable and professional refrigeration control subsystem solutions and comprehensive distributed control solutions for refrigeration system control. In large-scale refrigeration systems, the barrel pump is usually used to ensure the cooling operation of the system and improve the efficiency of the system. Therefore, the control of the barrel pump subsystem has become the link between high and low pressure in many large refrigeration systems, involving system stability and reliability. And efficiency. Danfoss' control subsystem covers three levels of sensors, actuators and controllers to ensure safe, reliable and efficient operation of the system.
