How many meters is the maintenance and machining workshop from the air compressor room?

I. Fire Safety Spacing Requirements

The distance between the maintenance and machining workshop and the air compressor room must first comply with the relevant national building fire‑protection design codes. The specific required separation depends on the characteristics of the two buildings.Fire Hazard ClassificationandFire resistance rating.

• Conventional Maintenance WorkshopIf the maintenance workshop is classified as Class C or Class D (e.g., standard mechanical machining), the fire separation distance from the air compressor room shall be determined in strict accordance with the fire resistance ratings of both buildings, and the minimum spacing requirements stipulated in the current Building Design Fire Protection Code must be rigorously consulted and implemented.
• Workshop involving hazardous operationsIf the maintenance workshop contains Class A or Class B fire‑hazard areas—such as painting, gas welding, or the use of flammable solvents—the required fire separation distance from the air compressor room will be significantly increased. The fire separation standards between Class A and Class B industrial buildings and related structures must be strictly enforced, and, where necessary, explosion‑proof walls shall be used to provide physical isolation.

II. Noise and Vibration Control Distance

During operation, air compressors generate significant mechanical and airflow noise, accompanied by a certain degree of vibration. In maintenance and machining workshops where precision instrument processing is performed or frequent verbal communication is required, the layout should prioritize noise and vibration control.

• Physical distance attenuation: In the absence of additional soundproofing measures, it is recommended to leverage the principle of distance attenuation and, where site conditions permit, maximize physical separation to ensure that noise levels within the workshop comply with the hygienic design standards for industrial enterprises.
• Building sound insulation treatmentIf space constraints within the plant area prevent maintaining adequate separation, the walls and doors/windows between the air compressor room and the workshop must be fitted with specialized sound-absorbing and sound-insulating materials, and the compressor foundation must be equipped with vibration isolation. In such cases, the required minimum distance may be adjusted accordingly, but only following a professional acoustic assessment.

III. Considerations for Ventilation and Thermal Management Design

During operation, air compressor rooms generate substantial heat and require adequate ventilation and heat dissipation. When determining the distance and relative positioning of these facilities, it is also necessary to take into account the prevailing wind direction and airflow patterns within the plant site.

• Avoid direct exposure to hot air.The exhaust vents or ventilation windows of the air compressor room shall not be directly oriented toward the intake vents or open areas of the maintenance and machining workshop, to prevent hot exhaust gases and oil mist from contaminating the maintenance environment.
• Dominant Wind Direction LayoutIt is recommended to locate the air compressor room on the prevailing upwind side or the leeward side relative to the annual minimum‑frequency wind direction of the maintenance and machining workshop, thereby ensuring that the workshop’s indoor air quality remains unaffected by heat dissipation from the compressor room and any potential exhaust emissions.

IV. Comprehensive Layout and Compliance Recommendations

The specific distance between the maintenance and machining workshop and the air compressor room should not be determined solely on the basis of a single empirical value; rather, it should be assessed through a systematic evaluation.

• During the site master planning phase, priority should be given to consulting the most recent…Code for General Layout Design of Industrial EnterprisesandDesign Code for Compressed Air Stations.
• The design must be carried out by a qualified design firm, based on the workshop’s specific process flow, equipment inventory, and safety assessment report, to ensure accurate calculations and detailed drawing preparation.
• If the existing layout is to be modified at a later stage, a new safety and fire‑protection assessment must be conducted to ensure that the post‑modification clearances continue to comply with current occupational safety standards.