Design Code for Compressed Air Station Buildings

Overview of Compressed Air Station Design

The compressed air station building serves as the installation and operational space for the compressed air system, and its design must meet requirements related to equipment installation, ventilation and heat dissipation, inspection and maintenance, safe operation, and noise control. During the conceptual design phase, a comprehensive layout should be developed in consideration of air demand, site conditions, equipment configuration, and future expansion needs.

Station Building Site Selection and Plan Layout

• Location Selection:It should be located near the gas‑use load center to minimize pressure drop and energy consumption caused by long‑distance transmission.
• Space reservation:It shall accommodate equipment positioning, operation, maintenance, and lifting requirements, and provide adequate accessways and installation space.
• Zoning arrangement:Air compressors, dryers, air receivers, filters, cooling systems, and electrical distribution cabinets should be arranged in separate zones to prevent mutual interference.
• Environmental requirements:The station building shall be kept clean and dry to prevent dust, corrosive gases, and standing water from affecting equipment operation.

Ventilation, Heat Dissipation, and Temperature Control

Operation of the air compressor generates heat; therefore, the station building design must ensure adequate supply and exhaust ventilation to prevent heat buildup. The required ventilation rate and the placement of air inlets and outlets should be determined based on the equipment’s heat output, the building’s volume, and the ambient temperature.

• The air inlet and outlet should be arranged appropriately to establish an effective airflow pattern.
• Direct human contact with high-temperature areas should be avoided; where necessary, thermal insulation or protective barriers shall be provided.
• In cold winter regions, frost protection and low-temperature start-up conditions should be taken into account.

Foundation, Vibration Isolation, and Noise Control

Equipment foundations shall have sufficient load-bearing capacity and be coordinated with the building structure. For equipment that generates significant vibration and noise, vibration isolation, sound insulation, or noise reduction measures shall be implemented.

• The foundation surface shall be smooth and level to facilitate equipment leveling and secure installation.
• When connecting pipelines to equipment, the impact of vibration transmission should be taken into account, and flexible connections should be used where necessary.
• The station building’s doors, windows, and walls can be designed with structural details to meet acoustic insulation requirements.

Compressed Air Piping and Associated Facilities

Piping design shall meet requirements for flow rate, pressure, media cleanliness, and maintenance, while minimizing unnecessary bends and pressure losses. Pipe materials, valves, and connection methods shall be compatible with the operating conditions of the compressed air system.

• Piping Layout:Moving toward clarity, it facilitates identification, operation, and maintenance.
• Drainage and sewage disposal:Drainage and sewage discharge points shall be provided near low points, gas storage tanks, and filtration units.
• Gas Storage and Buffering:Configure gas storage tanks or buffer volumes based on load fluctuations and system stability.
• Labeling requirements:The pipeline medium, flow direction, and valve status shall be clearly marked.

Electrical, Control, and Lighting

The electrical system shall be compatible with the equipment’s power rating, control scheme, and site environmental conditions. Distribution cabinets, control panels, and cable routing shall be designed for ease of operation and maintenance and shall meet applicable protection requirements.

• The control logic shall be clear and facilitate start-up, shutdown, interlocking, and status monitoring.
• Station building lighting shall meet the requirements of inspection, operation, and maintenance.
• In humid and dusty environments, electrical components with an appropriate protection rating should be selected.

Safety, Fire Protection, and Emergency Management

The design of the compressed air station shall address safety risks associated with pressure equipment, rotating components, high‑temperature surfaces, and electrical systems. The facility must maintain unobstructed access routes and be equipped with appropriate safety signage and emergency response equipment.

• Pressure equipment and safety accessories shall be installed as required and readily accessible for inspection.
• High-temperature, rotating, and energized parts shall be provided with protective guards or warning signs.
• The configuration of fire-fighting equipment shall be determined in accordance with the station building’s intended use and site-specific conditions.
• Requirements for routine inspections, maintenance, and emergency response shall be established.

Installation, Acceptance, and Operation & Maintenance

Prior to installation, verify the equipment foundation, pipeline connections, electrical conditions, and ventilation requirements. During acceptance, pay close attention to the equipment’s operating status, pipeline sealing, control functions, and the effectiveness of safety devices.

• Establish a routine inspection system to record pressure, temperature, operating time, and any abnormal conditions.
• Filter elements, lubricating oil, drainage devices, and cooling components shall be maintained in accordance with the equipment’s requirements.
• The maintenance plan shall be developed in conjunction with operating conditions and equipment technical documentation.

Summary of Design Key Points

The design of compressed air station buildings shall be guided by the principles of safety, stability, energy efficiency, and maintainability, with particular emphasis on layout planning, ventilation and heat dissipation, piping configuration, electrical control systems, and safety protection measures. During the design phase, full consideration should be given to site conditions, air‑consumption requirements, and equipment technical documentation to minimize rework and operational risks in later stages.