The Best Technology for the Application Educating the Specifier on Medical Air & Medical Vacuum Systems
Want to discuss the technologies Feel an educated specifier is the best business partner Often hear from end users they aren t sure who selected the pump. See where a technology is selected which is likely incorrect for the application
Codes NFPA 99: Health Care Facilities Complete rules for the safe application of electrical systems, gas and vacuum systems, and environmental systems, along with materials and emergency management practices. The 2015 edition has the most recent developments in medical equipment and processes as well as new methods to reduce fire, explosion, and electrical hazards.
Definition: Air & Vacuum Medical Air is life sustaining breathing air used by hospitals, surgery centers, dental facilities, outpatient clinics Applications include respirators and breathing tents. Medical Vacuum typically used for evacuation in surgical procedures found in same facilities as medical air Lab Air is normally a less stringent variation of medical air used in industrial and clinical laboratories for sterilizers, controlled experiments, and other laboratory processes. Lab Vacuum is normally a less stringent variation of medical vacuum used in industrial laboratories, clinical laboratories, universities, and health testing facilities.
What determines the Best Technology for the Application? The technology they ve always used? Cheapest price? Buddy who comes by once a month? Salesman that always says we re having a special this month? Today much is chosen by what is existing, what the specifier is most familiar, or what the MedGas Manufacturer recommends
Factors that determine the Best Technology for the Application What will the demand profile of the facility look like? Constant demand? Low/High Peaks What about sustainability of the facility? What is the maintenance practices? Are there energy considerations? What is the budget criteria, willing to invest?
Traditional Air Technologies Reciprocating Compressors Scroll Compressors Screw Compressors Liquid Ring Compressors
Reciprocating Compressors Traditional Piston Displacement Compressor incorporating Teflon Rings and oil-free operation Highly reliable and easily rebuilt Requires moderate level of maintenance and routine monitoring
Scroll Compressors Compression starts from the outside of the scroll and works toward delivery pressure at the center. Compression is accomplished by the orbiting scroll moving with in the fixed scroll. Highly reliable Low maintenance Quiet operation Air inlet Air Stationary scroll Low tolerance to running in reverse Orbiting scroll Air outlet
Oil-less Rotary Screw High Output for larger demands (30Hp+) Highly reliable Low maintenance, oil in gear chamber Quiet operation Available in Air/Water Cooled configurations
Liquid Ring Compressors Key. Considerations: Not used as much today Low Maintenance Water Quality critical to lower maintenance Water temperature critical to achievable Vacuum levels Utility cost of water Quiet Operation
Review of Air Technologies Technology Cost ($/CFM) Life Span (hours) Noise Maintenance Cost Energy Consumption (CFM/HP) Additional Considerations Reciprocating 798.5 20,000+ 84 db High 3.5 Scroll 729.2 10,000+ 73dB Low 3.2 Screw 289.1 30,000 69dB Medium 4.2 What is facility capabilities What is facility capabilities Environmental Considerations Liquid Ring 594 30,000+ 71dB Low 4.2 Environmental Considerations Assumptions: Based upon equipment costs not installed cost Prices ONLY for like comparison of technologies Used 7 ½ Hp for comparison except 30Hp for Screw
Traditional Vacuum Technologies Dry Rotary Vane Lubricated Rotary Vane Contactless Claw Liquid Ring
Dry Rotary Vane Technology Key Considerations: Medium Maintenance Required on Vanes Depth of Vacuum a factor Quiet Operation
Lubricated Rotary Vane Technology Key Considerations: Lower Maintenance Required on Vanes Deeper Vacuum Levels achieved Affordable Pump Relatively Quiet Operation Not allowed as WAGD evac pump by code Replace Oil Every 1,000 hrs.
Contactless Claw Technology Key Considerations: Low Maintenance Higher Cost of Equipment Gear Oil Replacement Good candidate for VFD (energy efficiency alternative) Vacuum Level considerations 24 Hg Noise Considerations WAGD evac pump if Fomblin is utilized
Liquid Ring Technology Key Considerations: Low Maintenance Water Quality critical to lower maintenance Utility cost of water Quiet Operation
Review of Vacuum Technologies Technology Cost ($/CFM) Life Span (hours) Noise Maintenance Cost Energy Consumption (CFM/HP) Additional Considerations Dry Vane 390 10,000+ 79dB High 4.3 Lube Vane 264 10,000+ 79dB Medium 6.9 Contactless Claw 330 30,000 85dB Low 8.7 Liquid Ring 594 30,000+ 76dB Low 4.2 Altitude considerations Good choice for deeper Vacuum Altitude considerations Good choice for deeper Vacuum Assumptions: Based upon equipment costs not installed cost Prices ONLY for comparison of technologies Used 7 ½ Hp for comparison
Key Considerations: Only one VFD per system Inherent soft start/stop, easier on mechanical system Fail-safe backup schema 25Hz min run frequency for cooling reasons
Amps Medical Vacuum VFD Controls (Claw) VFD Frequency vs. Amps 16 15.8 16.6 14 14.4 14.3 14.5 12 10 8 6 10.4 10.3 10.5 8.5 8.6 8.7 7.5 7.1 7.1 6 6.2 6.2 4.9 4.9 4.9 11.9 11 9.7 9 8.3 7.7 7.2 6.8 5.5 5.6 4 HP 5.4 HP 6.4 HP 7.5 HP 8.7 HP 15 HP 4 20 Hz 30 Hz 40 Hz 50 Hz 60 Hz Frequency
DBA Level Claw Vacuum VFD Controls (Claw) VFD DBA vs. Frequency 90 89 88 87 86 86 86 85 85 84 84 84 82 80 81 82 81 79 82 82 79 83 82 4 HP 5.4 HP 6.4 HP 7.5 HP 8.7 HP 78 77 77 76 76 76 76 74 72 74 74 73 20 Hz 30 Hz 40 Hz 50 Hz 60 Hz Frequency
Environmental Considerations Often should consider the utility cost associated with some selections Consider the noise/vibration in applications where worker productivity can be an issue Seismic considerations of pumps and compressors
What is Patton s Medical Core Business?
Thank You! End of Core Presentation
Retrofit opportunities for Scrolls?
Retrofit opportunities for Recips?
Control Panel Retrofits 28
Control Panel Retrofits 29
Sequencing Panel Retrofits
Sequencing Panel Retrofits Great Retrofit opportunity for existing Air/Vac Systems Can be used with multiple technologies Can incorporate troubleshooting guide Can incorporate maintenance alarms Gateway to Building Automation Systems (BACnet )
Space Saver Air
Tank mount 10Hp Pumps
20Hp Duplex Scroll System
Factory Training
Air and Vacuum Controls Pressure Display Runtime Display Dew Point/CO Monitoring 4-Day Dew Point Trend Display Alarm History Display Troubleshooting Guidelines Display Maintenance Schedule and History Display Service Indicator Replacement Parts Display Battery Backup for History Display HMI (Human Machine Interface)
Additional Capabilities: Graphical Gateway 7 Wide TFT Graphic Touch Screen with Motion Actuated Back-lit LED and Bright 65,536 (16-bit) Colors Downloadable Trend Information via USB Host Port or Network Device 128MB Flash Memory, 64MB DRAM Built-in Ethernet Port 10/100 Base-T (RJ45) Supports over 100 Communication Protocols including BACnet IP, Ethernet IP, and Modbus TCP/IP Built-in Multiple Ports it can handle three (3) additional Proto-cols simultaneously Built-in VNC server allowing remote monitoring over Ether-net/Internet network for Real Time monitoring of live graphics through standard browser, smart phones & mobile devices Share data between HMI and Building Management systems with no additional software to implement HMI (Human Machine Interface)
Networking: Which would you prefer? Patton s Medical Beacon Total Alert Versus
Medical Manifold
Zone Valve Boxes