Ammonia screw compressors are an essential part of many industrial refrigeration processes, and it’s vital to understand how they work and how to properly maintain them. In this article, we’ll be discussing the basics of ammonia screw compressor operation and maintenance. Keep reading to learn more about this refrigerant compressor.
How an Ammonia Screw Compressor Works
Ammonia screw compressors are devices that use a screw-shaped rotor to compress refrigerant gas. The gas is compressed by the turning of the screws, which forces it into a smaller area. These types of compressors are often used in industrial settings, as they can handle large amounts of pressure and have a relatively low cost.
The screws are mounted on a common shaft and rotate in opposite directions. As they rotate, they move the refrigerant between them. This movement compresses the refrigerant and forces it through the compressor.
The compressed refrigerant is then sent to the condenser, where it’s cooled and turned back into a liquid. The liquid refrigerant is then sent back to the compressor, where it’s compressed again and sent to the evaporator.
The evaporator is the part of the system that cools the air. The refrigerant is vaporized in the evaporator and the cooled air is circulated into the refrigeration system.
Cleaning and Inspecting the Components
Keeping all components of a refrigerant compressor clean is essential for proper maintenance and function. The screws, discharge valve, and other internal components must be regularly cleaned to remove any built-up debris or contamination. If this debris isn’t removed, it can cause the compressor to overheat, malfunction, or even fail.
To clean the screws, the compressor must be stopped and the discharge valve closed. The screws can then be cleaned with a brush or other cleaning tool. Be sure to remove all the debris and contaminants from the screws before continuing.
The discharge valve must also be cleaned regularly. The best way to do this is to remove the valve and clean it with a brush or other cleaning tool. Ensure you remove all the debris and contaminants from the valve before reinstalling it.
Cleaning and inspecting the refrigerant compressor components on a regular basis is an essential part of screw compressor maintenance. Doing so will help ensure that the compressor runs smoothly and efficiently.
For ammonia screw compressors to work efficiently and last for an extended period of time, they need to be properly lubricated. The compressor oil must be of the right viscosity and must be changed on a regular basis. A qualified technician should handle the lubrication process to ensure that it’s done correctly.
If the compressor oil isn’t changed on a regular basis, it can break down and cause the compressor to fail. The compressor can also become contaminated with water and other impurities, which can lead to failure as well.
One of the most important things to remember about lubricating ammonia screw compressors is to use the right type of oil. There are several different types of oil that can be used, but not all of them are compatible with ammonia. In most cases, mineral oil should be used. However, if the compressor is being used in an environment where there is a lot of water present, synthetic oil can potentially be used instead. Be sure to check the equipment manual for the manufacturer’s recommended oil for that compressor.
Operating and Maintaining Ammonia Screw Compressors
Overall, the basics of ammonia screw compressor operation and maintenance are important for ensuring the compressor runs smoothly and without issue. By understanding the basics, you can avoid common problems and keep your compressor running efficiently.