The screw chiller is designed to supply industrial chilled water, maintaining a controlled temperature range of 0–35°C or even as low as 0 to -40°C. Many users rely on continuous 24-hour operation, which means the system should be reliable and problem-free. However, no matter how well-maintained a chiller is, prolonged use can lead to various issues. One common problem is refrigerant deficiency. Shenzhen Dongyuejin Chiller Plant has analyzed the causes and effects of insufficient refrigerant in screw chillers.
The screw chiller plays a vital role in industrial cooling applications, providing precise temperature control for various processes. Due to the high demand for uninterrupted operation, the unit must be robust and durable. Despite this, over time, issues such as refrigerant loss can occur, affecting performance and efficiency.
When refrigerant levels are low, several symptoms may appear:
1. The suction and discharge pressures of the screw compressor will drop below normal operating levels.
2. Reduced refrigerant leads to lower evaporation rates in the evaporator, resulting in decreased cooling capacity and poor overall performance.
3. The thermal expansion valve may not frost properly, or there may be little to no condensation in air conditioning mode.
4. Frosting in the evaporator becomes minimal or nonexistent, and condensation is either absent or very light.
5. The compressor runs under a lighter load, potentially leading to idling, with current values lower than the rated specifications.
If refrigerant is overcharged, it can also cause problems, such as increased pressure and reduced efficiency. Therefore, maintaining the correct refrigerant level is essential for optimal chiller performance.
So what causes refrigerant loss in a screw chiller? Several factors may contribute:
1. Improper initial charging of the refrigerant during installation.
2. Leaks in the refrigeration system due to poor sealing or damaged components.
3. Inadequate maintenance or improper handling during service, which can introduce leaks.
Shenzhen Dongyuejin Chiller Factory advises that if refrigerant deficiency is detected, the entire system should be thoroughly inspected to identify the source of the leak. Once the issue is resolved, the refrigerant should be replenished according to manufacturer guidelines to restore normal operation.
A properly installed and maintained screw chiller system should operate efficiently for a long time without needing frequent refrigerant top-ups. However, when leaks occur, it's crucial to address them first before adding more refrigerant.
This article was originally published by Shenzhen Dongyuejin Refrigeration. Please note the original source: http://news.chinawj.com.cn
Editor: Hardware Business Network Information Center, http://news.chinawj.com.cn
53Cm Nonwoven Wallpaper,Home Decor Nonwoven Wallpaper,European Retro Wallpaper,Waterproof Non-Woven Wallpaper
JIANGSU ARTSTYLE DECORATION MATERIALS CO..LTD , https://www.artstyledecor.com