Does loading and unloading a screw air compressor affect its mechanical operation?
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Does loading and unloading a screw air compressor affect its mechanical operation?
Your question is quite profound; I personally suggest that the moderator move this question to the top so that everyone can discuss it. In my opinion, an answer to this question can only be found by considering various aspects such as theory and practical application
The purpose of unloading is to adjust the flow rate, so a gas tank is generally installed in the system. Prolonged unloading can increase the vibration of the compressor; in severe cases, it may cause damage to the screws.
Additionally, frequent loading and unloading is harmful to the machine; such operations are usually automated, so everyone can discuss ways to address this issue. 1. Select an appropriate gas tank based on the amount of gas required. 2. Install a volume control servo system on the compressor control pipeline to adjust the settings automatically according to the amount of gas in use
Regardless of the type of loading or unloading, it has an impact on the operation of machinery. However, normal, moderate, and gradual loading or unloading has a minor effect on the machinery and is considered acceptable; in fact, it can even be regarded as having no impact at all. On the other hand, such actions can cause certain damage to the machinery, and this damage is closely related to the condition of the machinery itself as well as the load conditions prior to loading or unloading. Common examples include the destruction of the lubricating oil film, which leads to increased wear on the bearings. Of course, under normal circumstances such damage is considered an “internal injury,” and its impact on mechanical operation does not become apparent immediately.
The compatriot upstairs explained it quite clearly. There are specific rules regarding the start-up and shutdown of screw air compressors for loading and unloading purposes, and these must be thoroughly understood. :victory: