跳至主要内容

Advantages and disadvantages of piston chillers - Oumalchiller.com

 Advantages and disadvantages of piston chillers

According to the different types of chiller compressors, industrial chillers can be divided into fully enclosed scroll chillers, semi-enclosed piston chillers, and semi-enclosed screw chillers. All kinds of compressors have their advantages and disadvantages. Today, Omar Refrigeration will take you to talk about the advantages and disadvantages of piston chillers.


Semi-Hermetic Piston compressor Chiller


Piston chiller is a chiller with semi-hermetic piston compressor as the main engine. The unit is composed of refrigeration compressors, condensers, evaporators, thermal expansion valves, etc., and is equipped with automatic energy regulation and automatic safety protection devices. The piston compressor device system is relatively simple, and this type of compressor is generally used more in low temperature conditions. For general piston compressors, the brands we use are Bitzer Semi-hermetic Piston compressor, Copeland Semi-hermetic Piston compressor, or Dorin semi-hermetic Piston compressor.


Advantages of piston chillers:

1. Wide range of applicable pressures; strong maintainability.

2. Using multi-head, high-speed multi-cylinder, the performance can be improved.

3. The material is simple, the general metal material can be used, the processing is easy, and the cost is lower than that of the screw chiller.


Determination of piston chiller:

1. There are many parts and wearing parts.

2. The compression ratio is low, the cooling capacity of a single machine is small, and the cylinder unloading adjustment cannot be adjusted steplessly.

3. It has a reciprocating motion up and down, and the vibration is large, and the weight index per unit cooling capacity is large.

4. It is very sensitive to liquid shock.


types of chiller compressor

标签：

评论

发表评论

此博客中的热门博文

Avoid Downtime, Cut Costs: Smart Maintenance for Smarter Chillers

  Screw water-cooled chillers   typically operate around 3,000 hours per year, depending on China's climate and geographical conditions. Regular and scientific maintenance is crucial to ensure long-term, reliable operation, extend the lifespan, and reduce operating costs. Maintenance and Upkeep Preventive maintenance during operation and inspection involves creating annual and monthly maintenance plans based on actual operating conditions. Shutdown Procedures In winter, clean and dry the unit. Open the drain valve to empty the  shell-and-tube heat exchanger  to avoid freezing. The shutdown sequence is: chiller off - cooling tower fan off - cooling water pump off - chilled water pump off. Special attention to anti-freezing: 1. Drain the evaporator and condenser if the unit is outdoors below 0°C during standby. 2. Interlock the water flow switch with the unit to prevent freezing when the chilled water flow switch malfunctions. 3. Ensure water in the evaporator is flowi...
发表评论
阅读全文

How to design a water chiller system with AHU for pharmaceutical factory workshop | Hstarschiller.com

  Nowadays, it’s become more and more aware of pharmaceutical enterprises to realize the significance of building an efficient and green to environment cooling system in the factory, because it can not only help the owner to save the running cost but also contribute to the society by reducing the emissions, especially for those developed countries . But how to design a simple but energy saving cooling system with clean workshop? Below we are going to give you a real case for your reference to help you understand well, especially for those are quite new to the water chiller system field. Firstly,this project has been done by  H.Stars Group  ,including the system design,equipment manufacturing and installation etc. Below is the detailed project overview to help you understand the owner’s requirement . Project address: one of the pharmaceutical factories located in China Project desire: Requesting a constant temperature with humidity for oral solid preparation workshop Proje...
发表评论
阅读全文

What Makes High-Temperature Heat Pump Units Essential for Modern Energy Use

  High-temperature heat pump units   have become essential to modern energy utilization technologies, finding widespread applications across various industries such as industrial, agricultural, and commercial sectors. These units' unique performance and advantages are key in driving energy transitions and achieving energy conservation and emission reductions. This blog will explore the working principles, application areas, technical features, and future trends of high-temperature heat pump units. How Do High-Temperature Heat Pump Units Work? High-temperature heat pump units operate based on the principle of the reverse Carnot cycle. They use a small amount of electrical or thermal energy to absorb heat from a low-temperature source and transfer it to a high-temperature source. The process involves four key stages: evaporation, compression, condensation, and expansion. During evaporation, the refrigerant absorbs heat from the low-temperature source and turns into a low-pressur...
发表评论
阅读全文