The screw-type chillers feature screw compressors, which are particularly energy-efficient during part-load conditions throughout the year. I have also developed a chiller that can be referenced to Mingtong Refrigeration's chillers, with identical technology.

What is the application of the screw-type water chiller?

Cooling Units: Machines that achieve cooling effects through steam compression or absorption cycles. These liquids can flow through heat exchangers, with the purpose of cooling air or equipment. Applications: 1. Plastic Industry: Accurately controls the mold temperatures for various plastic processing, shortens the cycles for beer and plastic production, and ensures the stability of product quality. 2. Electronics Industry: Stabilizes the molecular structure of electronic components on the production line, improves the pass rate of electronic components, and is applied in the ultrasonic cleaning industry, effectively preventing the evaporation of expensive cleaning agents. 3. Electroplating Industry: Controls electroplating temperatures, increases the density and luster of electroplating, shortens the electroplating cycle, improves production efficiency, and enhances product quality. 4. Mechanical Industry: Controls the pressure oil temperature of hydraulic systems, stabilizes oil temperature and pressure, extends the service life of oil, improves mechanical lubrication efficiency, and reduces wear. 5. Construction Industry: Provides ice water for concrete, making the concrete molecular structure suitable for construction requirements, effectively improving the hardness and toughness of concrete. 6. Vacuum Coating: Controls the temperature of vacuum coating machines to ensure high-quality coatings. 7. Food Industry: Used for high-speed cooling after food processing, making it suitable for packaging requirements. Additionally, temperature control for fermented food products.

What is the refrigeration principle of a screw-type water chiller?

The cooling principle of screw chillers: Essentially, after the compressor operates, it extracts the refrigerant (in gaseous form) from the evaporator, then reduces the pressure inside the evaporator. The low-pressure gaseous refrigerant is then compressed to a high pressure and released into the condenser. Due to the compressor's operation, the refrigerant temperature is high, which is cooled by air or high-pressure gaseous refrigerant water to become a high-pressure liquid refrigerant, at which point the refrigerant temperature has dropped to room temperature. Additionally, a throttle device is set between the evaporator and condenser. As the high-pressure refrigerant passes through, the pressure drops instantly. Owing to the compressor's continuous suction, the saturation temperature (i.e., "boiling point") of the refrigerant is reduced. The refrigeration system can achieve temperatures as low as -80°C. For reference, after the compressor operates, it extracts the refrigerant (in gaseous form) from the evaporator, reduces the pressure inside the evaporator, compresses the low-pressure gaseous refrigerant to a high pressure, and releases it into the condenser. Due to the compressor's operation, the refrigerant temperature is high, which is cooled by air or high-pressure gaseous refrigerant water to become a high-pressure liquid refrigerant, at which point the refrigerant temperature has dropped to room temperature. Moreover, a throttle device is set between the evaporator and condenser, causing the pressure to drop instantly as the high-pressure refrigerant passes through. The saturation temperature (i.e., "boiling point") of the refrigerant is reduced due to the compressor's continuous suction.

Screw Chiller Features

Mingtong Refrigeration's Screw Chiller Features: Firstly, the screw chillers are categorized into water-cooled and air-cooled types. The features of the air-cooled screw chillers include: world-renowned compressors using Italian Luvafan, Japanese Shinko, Taiwanese Fu Sheng, and Hanzhong semi-hermetic screw compressors, as well as original imported twin screw compressors. The 5:6 twin screw gear ratio and advanced linear design are energy-efficient. Effective control of valve energy achieves stepped or continuous control. Balanced design ensures ultra-quiet and stable operation. Strictly processed moving parts, with a design for exhaust oil balancing blocks, offer a long maintenance cycle and fault-free operation for over 40,000 hours. High-efficiency oil separators reduce exhaust oil volume, enhancing heat transfer between the two units and improving energy efficiency and durability. The new high-efficiency evaporator features Kobe's effective internal thread copper tubes, improving heat transfer and enhancing energy efficiency. CAD/CAM design and processing techniques are used, with a compact structure, small size, and durability. The U-shaped heat exchanger tube bundle has a stepped interior that can be removed as a whole for convenience in maintenance. The dry evaporator facilitates oil return, extending the compressor's lifespan and system reliability. The air-cooled condenser features stamping成型 fins using high-speed presses, ensuring reliable flipping quality. The secondary flange design allows for a closer contact between copper tubes and fins, resulting in high heat exchange efficiency. Full imported copper tubes and fully automatic bending and welding processes significantly improve oxygen sealing and prevent refrigerant leakage. Particularly suitable for areas with scarce water resources or high water hardness. The micro-machined control system utilizes industrial-grade PLC units for centralized control, coordinating with the adjustable compressor system to accurately control the unit's cooling capacity and load matching, ensuring efficient operation.