What are the use scenarios of air compressors in hospitals?

With regard to the use of air compressors in hospitals, according to the general specifications of the medical industry and equipment operation requirements, the following professional descriptions are made on its application fields and technical points:

1. core medical equipment power support

1. life support system:
   • ventilators, anesthesia machines and other equipment rely on stable gas source drive. The use of medical-grade air compressor can ensure that the air pressure fluctuation range is less than or equal to 0.02MPa, and ensure the safety of respiratory support for patients.
   • The hemodialysis machine needs to be equipped with a special gas source processing unit to remove oil and particles through a precision filtration device to ensure the accuracy of the dialysate ratio.
2. Diagnosis and treatment auxiliary equipment:
   • the dental comprehensive treatment table is integrated with pneumatic turbine handpiece, three-purpose spray gun and other tools, and the oil content of the air source is required to be less than or equal to 0.01 mg/m & sup3;, to avoid the risk of cross infection.
   • The endoscope system adopts a pneumatically driven lens propulsion device and needs to be equipped with a silent air compressor to ensure the comfort of the diagnosis and treatment environment.

2. operating rooms and intensive care units

1. surgical instrument power:
   • orthopedic electric drills, pneumatic saws and other equipment need a working pressure of 0.4-0.6MPa, and a double-circuit air supply system is configured to ensure the continuity of surgery.
   • Laparoscopic surgery using pneumoperitoneum machine to establish operating space, requiring pressure control accuracy of ± 1mmHg, to avoid tissue damage.
2. environmental control system:
   • the laminar flow operating room is equipped with a special air compressor unit, and the air cleanliness ISO 5 standard is realized through the high efficiency filtration module.
   • The negative pressure isolation ward adopts a variable frequency air compressor to drive the exhaust system to maintain a pressure difference of -10 to -5Pa to prevent cross-infection.

3. Hospital Infrastructure Support System

1. central gas supply network:
   • the medical gas pipe network is made of copper/stainless steel pipe, equipped with three-stage pressure relief device, and the terminal pressure is stable at 0.35-0.45MPa.
   • The standby gas source system shall meet the requirement of 72-hour continuous gas supply, and be equipped with online monitoring device to display the gas storage capacity in real time.
2. Logistics support equipment:
   • laundry steam generator, kitchen ice machine and other equipment shall be equipped with special air compressor unit to meet the steam pressure demand of 0.6-0.8MPa.
   • The logistics transmission system adopts pneumatic pipeline to transmit specimens and drugs, and the pipeline pressure is required to be less than or equal to 0.2MPa to ensure the safety of transmission.

4. Laboratory and Research Applications

1. gas supply for precision instruments:
   • gas chromatograph, mass spectrometer and other equipment shall be equipped with oil-free air compressor to ensure the purity of carrier gas ≥ 99.999 and avoid detection interference.
   • The cell incubator adopts a micro-pressure difference control system, and maintains a positive pressure environment in the box through a variable frequency air compressor to prevent pollution from invading.
2. Biosafety Protection:
   • the biological safety cabinet is equipped with an independent air supply system. The air filtered by HEPA shall reach ISO 5 level cleanliness, and the three-level biological protection shall be realized with air curtain isolation technology.

5. emergency support system

1. standby power linkage:
   • the diesel generator set and air compressor linkage device shall be configured to ensure that the gas supply is restored within 15 seconds after the mains power interruption.
   • The mobile air compressor unit is used as emergency equipment to meet the needs of rapid response in 2 hours under emergencies.
2. intelligent monitoring platform:
   • establish a central monitoring system, integrated pressure, flow, dew point and other parameters monitoring, abnormal conditions automatically trigger the three-level alarm mechanism.
   • Configure the remote diagnosis module to realize cloud visualization of equipment status, and shorten the fault response time to less than 30 minutes.

6. energy saving optimization scheme

1. energy Efficiency Management:
   • using permanent magnet frequency conversion technology, the speed is automatically adjusted according to the gas load, and the comprehensive energy efficiency is improved by more than 30%.
   • Equipped with heat recovery device, compressed heat is used for hot water supply in wards, and the comprehensive energy efficiency ratio of the system reaches 1.35.
2. pipe network optimization:
   • the pipeline layout was optimized by CFD flow field simulation to reduce the pressure loss by more than 20%.
   • The annular pipe network design is adopted, and the key area is equipped with double-circuit gas supply to ensure the reliability of gas supply ≥ 99.99.

In the application of air compressors in the medical field, enterprises should establish a full life cycle service system covering equipment selection, installation and commissioning, and operation and maintenance management. It is recommended to conduct pipe network leakage detection every quarter, and control the annual leakage rate within 2%; conduct equipment energy efficiency assessment every two years, and timely eliminate models below level 3 energy efficiency. Through technology upgrading and management optimization, operating costs can be reduced by 15%-20% under the premise of ensuring medical safety.