H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  In the world of industrial cooling, scroll air-cooled chillers are spearheading an energy-efficiency revolution. Among them, the newly launched 800kW chiller by   H.Stars Group   has quickly become a topic of industry discussion. But what qualifies as a “large-scale” unit in this field? Let’s decode the standards of industrial chiller classification from a technical perspective. 1. Understanding Chiller Size Classifications In the HVAC industry, the size of a chiller is defined by more than just its physical footprint. According to ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers),  scroll air-cooled chillers  can be categorized by cooling capacity as follows (for reference): • Small Units: <200kW • Medium Units: 200–500kW • Large Units: >500kW This classification considers system integration, efficiency curves, and actual application environments—not just output power. International giants like Trane and Carrier follow s...

  In the maritime industry,   heat exchangers   play a vital role in ensuring the efficiency and safety of ship operations. Marine heat exchangers made with stainless steel tubes and nickel-copper tube sheets have emerged as the preferred solution due to their exceptional performance and durability. Advantages of Stainless Steel Tubes in Marine Heat Exchangers Stainless steel is renowned for its outstanding corrosion resistance and high-temperature tolerance. In the harsh marine environment, where seawater and various working media pose significant corrosion risks,  stainless steel tubes  offer long-lasting protection and efficiency. Their high strength and excellent processability enable them to withstand high pressure, making them well-suited for the complex and variable conditions ships often encounter. Benefits of Nickel-Copper Alloy Tube Sheets The use of nickel-copper alloy combined with carbon steel for tube sheets provides superior corrosion resistance, ...

  Among the many pieces of equipment in industrial settings,   dual-mode screw inverter chillers   shine like unique gems, offering exceptional value. For businesses, understanding their special features not only maximizes their efficiency but also brings unexpected benefits in cost control and productivity improvement. Whether in the production workshops of large factories or the server rooms of data centers, dual-mode screw inverter chillers play a vital role. Today, let’s explore what makes them so special. 1. Dual-Mode Operation One of the standout features of dual-mode screw inverter chillers is their ability to operate in two distinct modes: cooling and ice-making. They can seamlessly switch between these modes based on actual needs. In cooling mode, they provide a stable low-temperature environment for production equipment and office spaces, effectively reducing temperatures and ensuring smooth operations while preventing overheating-related failures or reduced lif...

  In the chemical industry,  heat exchangers  are critical equipment for achieving material heat exchange and improving energy efficiency. United Factory, a professional heat exchanger manufacturer, has customized a stainless steel spray heat exchanger tailored to the specific n eeds of chemical plants, meeting the high-performance requirements of heat exchange equipment in chemical production. Material selection is crucial. United Factory uses high-quality 316L stainless steel as the main material for the  spray heat exchanger . This material not only offers excellent corrosion resistance, capable of withstanding the acidic and alkaline environments common in chemical production, but also ensures stable operation under complex working conditions due to its high thermal conductivity and excellent processing properties. The design structure reflects innovation and practicality. The spray heat exchanger improves heat exchange efficiency by uniformly spraying the coolin...

  Industrial chillers  include air-cooled chillers, water-cooled chillers, and  screw chillers , which are widely used in the plastic industry, pharmaceutical industry, food processing industry, chicken hatching bases, etc. However, many customers do not know how to use the industrial chiller after purchasing it, and do not know whether the machine is working properly. Let's talk about the main signs of normal operation of the chiller. 1. Condenser: Water-cooled chiller cooling water system: The cooling water should be sufficient, the water pressure should reach more than 0.15MPa, and the temperature difference between the inlet and outlet water should not be too large, otherwise it indicates insufficient water flow. 2. Compressor: When the compressor is running, the optimal superheat is 4~8 degrees, the maximum suction superheat does not exceed 15℃, and the condensation phenomenon is limited to the compressor return air pipe, and there should be no frost in other parts. ...

  In the operation of hotels, energy costs are a significant factor that cannot be overlooked. The advent of   heat recovery chillers   offers an efficient and energy-saving solution for hotels. ​ A heat recovery chiller, in simple terms, not only performs cooling tasks but also effectively recovers heat. For hotels, this is a highly practical feature. Traditional chillers only accomplish cooling, wasting the heat generated. However, heat recovery chillers are different; they can convert the otherwise wasted heat into usable hot water. In principle, during the cooling cycle of a chiller, the refrigerant releases heat. Heat recovery chillers use special devices to collect this heat, and through a series of heat exchange processes, they can produce hot water. This hot water can be used in various scenarios within the hotel. For example, it can supply water for guest rooms' washing and brushing, provide hot water for the hotel's restaurant kitchen, and even be used for heati...

  In the world of industrial equipment, pairing   low-temperature chillers   with pump skid units has become a recommendation many companies swear by. At H.Stars, we highly recommend this combination for several strategic reasons, which reflect our expertise and forward-thinking approach to industrial operations. ​ The Benefits of Using Pump Skid Units with Low-Temperature Chillers When it comes to industrial cooling systems, maintaining a stable and efficient water circulation system is critical for ensuring the consistent output of the chiller. Pump skid units, thanks to their integrated design, provide a highly effective solution to this challenge. Here’s why they make a perfect match for low-temperature chillers: 1. Optimized System Efficiency Pump skid units play a crucial role in stabilizing water flow parameters—speed, pressure, and volume—ensuring the chiller operates at peak efficiency. By maintaining steady water circulation, they prevent fluctuations in cooling...