Screw air compressor (English)

I. Terminology for Basic Structure and Core Components

Screw air compressors are widely used power equipment in the industrial sector. Mastering the English terminology for their core components facilitates accurate reading of technical manuals and effective international communication.

• Air End (Screw Element):The core component of the compressor comprises the male rotor and the female rotor.
• Casing:Protect internal components and maintain structural integrity.
• Oil Separator:Used to separate compressed air from lubricating oil.
• Cooling System:Includes an air-cooled radiator or a plate heat exchanger.

II. Operating Parameters and Performance Metrics

In technical data sheets or import‑export contracts, the following performance terms frequently appear:

• Discharge Pressure:Usually with bar or psi Labelled by unit.
• Volumetric flow rate (Free Air Delivery / FAD):Refers to the actual volume of gas discharged by the compressor.
• Specific Power:The key metric for measuring energy efficiency is expressed in units of kW /(m³/min).
• Rotation Speed / RPM):The operating frequency of the main motor.

III. Vocabulary for Operation, Control, and Maintenance

During routine inspections and troubleshooting, the following terms are commonly used to refer to the controller panel and maintenance records:

• Start/Stop:Basic control commands.
• Unload / Load:Describe the compressor’s no-load and full-load operating conditions.
• High Oil Temperature:One of the common alarm messages.
• Filter Replacement:Includes the intake filter, oil filter, and separator element.

IV. Application Scenarios and Reference Standards and Specifications

In international trade and technology integration, it is often necessary to refer to relevant international standards. When drafting technical documents in English, maintaining terminological consistency can significantly reduce communication costs. Regularly compiling a device‑specific glossary and reinforcing memorization by cross‑referencing it with physical labels can markedly enhance one’s practical proficiency in professional foreign languages.