Classification and advantages of Dongguan water chillers
Classification of Dongguan water chillers (also known as Dongguan ice chillers in many places):
Industrial chillers, chillers, screw chillers, air-cooled water chillers, water cooled chillers,
Air-cooled water chiller
1、 Classification method
1. By condenser cooling method
Water cooled water chiller Air cooled water chiller
2. According to cold water outlet temperature
Normal temperature type (5 degrees to 40 degrees) Low temperature type (- 5 degrees to - 130 degrees)
3. By compressor type
Piston type water chiller Screw type water chiller Centrifugal water chiller
4. According to the form of energy utilization
Single cooling heat pump type heat recovery type single cooling and ice storage dual function type
5. By sealing method
Open semi closed fully closed
6. By refrigerant carrier
Water cooled chiller Brine chiller Ethylene glycol chiller
7. Divided by energy compensation
Electric power compensation (compression type) Thermal energy compensation (absorption type)
8. By refrigerant
R22 R123 R134a
9. Different by heat source (absorption type)
Hot water type, steam type, direct combustion type
2、 Advantages of various water chillers
A. Screw type water chiller
advantage:
1. Simple structure, few moving parts, and few vulnerable parts, only 1/10th of the piston type, with low failure rate and long service life. 2. Smooth circumferential movement, no "surge" phenomenon during low load operation, low noise, and low vibration. 3. Compression ratio can be as high as 20, and EER value is high. 4. Convenient adjustment, stepless adjustment within the range of 10% to 100%, high efficiency and significant power saving under partial load. 5. Small size, light weight, Can be used as a set up fully enclosed large capacity unit 6. Not sensitive to wet stroke 7. It operates under positive pressure and does not have external gas invasion and corrosion problems
B. Centrifugal water chiller
advantage:
1. High impeller rotation speed, large gas transmission capacity, and large single unit capacity. 2. Less vulnerable parts, reliable operation, compact structure, stable operation, low vibration, and low noise. 3. Low weight index per unit refrigeration capacity. 4. No lubricating oil is mixed in the refrigerant, and the heat transfer performance of the evaporator and condenser is good. 5. High EER value, with a theoretical value of 6.996. Convenient adjustment, stepless adjustment within 10% to 100%
C. Piston type water chiller
advantage
1. Simple materials, low requirements, easy processing, and low cost. 2. Simple system installation, easy lubrication, and no need for exhaust devices. 3. Multiple heads, high-speed, multi-cylinder, and improved performance
D. Ground source heat pump
1. Save energy. During winter operation, heat can be recovered, and during summer operation, cold energy can be recovered. It can be said to be a multifunctional water chiller, or an air conditioner, capable of heating and cooling, and can be designed to achieve versatility in production and office use. 3. Convenient measurement 4. Convenient installation, low maintenance costs 5. Flexible application, convenient adjustment, energy conservation and environmental protection. Fully automatic LCD touch screen, which can be set to start automatically at the time of the month, day, and hour, with high power saving efficiency. It can be said that the 7 is a fighter in a water chiller and air conditioning unit.