Working principle of compressed air storage tanks
Compressed air storage tanks are common equipment in industrial production, primarily used to store compressed air discharged from air compressors. Their main functions include stabilizing pipeline pressure, removing some moisture and impurities, and providing a continuous, stable air supply to pneumatic devices. During operation, the tank interior is filled with high-pressure gas, forming a relatively closed system.
What is a sealed pressurized vessel?
A sealed pressurized vessel is a container in which, under closed‑system conditions, the internal fluid pressure exceeds the local atmospheric pressure. Such vessels are designed to safely and efficiently store or process gases, liquefied gases, or liquids whose maximum operating temperature is equal to or higher than their standard boiling point. Their defining characteristics are tight sealing and internal pressurization.
Does a compressed air storage tank qualify as a sealed pressurized vessel?
From the perspective of physical properties and structure,Compressed air storage tanks are explicitly classified as sealed pressurized vessels.. The reasons are as follows:
- Sealability: Storage tanks are manufactured using processes such as welding or flanged connections, offering excellent sealing performance to prevent internal gas leakage.
- Internal pressurizationThe tank contains compressed air, with a working pressure that is typically much higher than atmospheric pressure, to meet industrial gas requirements.
Therefore, compressed air storage tanks fully meet the basic definition of sealed pressurized vessels.
As a regulatory requirement for special equipment
Since compressed air storage tanks are sealed pressurized vessels containing gaseous media, a rupture or leak could trigger a severe physical explosion or shockwave injury. Consequently, relevant regulations stipulate that, for pressures meeting specified criteria—such as a maximum working pressure of 0 or greater—… 1MPa) and compressed air storage tanks meeting volumetric criteria have been incorporated intoSpecial equipmentPressure vessel categories are subject to strict regulatory oversight.
When using such equipment, enterprises must comply with the following provisions:
- Procure products manufactured by suppliers with the requisite manufacturing qualifications.
- After installation, you must register the equipment with the local authority responsible for the safety supervision and administration of special equipment.
- It is equipped with safety valves, pressure gauges, and other safety accessories, which are subject to regular calibration.
- Conduct periodic inspections in accordance with the prescribed schedule to ensure the safe operation of equipment.