ALL >> Business >> View Article
Positive Pressure Utility Ventilator
Canada Fan Power Smoke Extractors (negative pressure ventilation) can be used for smoke removal but this has proven to be inferior to positive pressure ventilation.
The Positive Pressure Blower is a high volume fan use to pressurize a burning structure, in case of fire, in order to force the smoke out. Positive Pressure Blowers are portable, gasoline powered fans, most of which utilize a 5.5 horsepower engine. The theory of positive pressure ventilation is based on the principal of even pressure distribution. Once a structure is pressurized, air and smoke can be forced out through any opening (similar to escaping from an inflated baloon).
Canada Fan Co. has jdeveloped new Low Profile Positive Pressure Ventilators that have been designed to fit in tight compartments ans small spaces without scarificing performance or features. These compact ventilation blowers are available is both gasoline driven conviguration and with 115/230V single phase electric motor.
What makes Positive Pressure Ventilation superior to negative pressure ?
* The risk of injury from the engaged structure is reduced while placing ...
... the fan in operation.
* Positive pressure ventilation is faster to set up and requires fewer personnel.
* The Positive Pressure Blower has a self contained power source, while electric fans require cords and adaptors.
* Smoke and heat is removed from all levels of the structure unlike negative pressure which can result in localized extraction.
* Quicker results. After initial knockdown, positive pressure ventilation can be initiated and will show immediate improvements in the interior conditions.
* It allows replacement of contaminants with vital cooler, cleaner air - especially in sealed or windowless buildings. It's also very effective in large and compartmentalized buildings, warehouses, schools, etc.
* Quick results allow firefighters faster entry due to lower heat levels and improved visibility.
The following criteria should be considered for effective use of Positive Ventilation:
- The cone of air must cover the intake opening. The fan must be placed the correct distance from the structure such as that the cone of air forms a seal around the opening.
- The size and location of the discharge is important. The discharge, if at all possible should be as high and far away from the intake as is practical. The discharge size should be between 3/4 to 1/2 times the intake. This may not always be possible as the fire may have already dictated discharge locations and sizes; but whenever there is a choice, the above criteria should be used.
- It is important to control the ait flow between the intake and discharge. Positive pressure ventilation can move air long distances if proper control is maintained by opening and closing doors, windows, etc. It is important that firefighters understand not to open the structure too much: ie breaking windows, etc.
The standard features of Canada Fan Positive Pressure Ventilators include: fold down "T" handle; 8" pneumatic tires with full width axle; a "tilt and lock" device that allows the unit to be angled 20 degrees up or down with infinite positions in between; sturdy and light 1 inch wrap around frame. Explosion proof electric motors are available as drivers too.
The optimum ventilator placement distance on most 6'6" doors is about five to six feet away. If placement is too close, the seal won't be achieved. If placement is too far away, the cone of air will be hitting well outside the opening.
For additional information please refer to http://cincinnatifan.net/radialblower.html
Oleg Tchetchel
Ventilation Equipment Engineer
Canada Fan Co.
nis@primus.ca
http://www.cincinnatifan.net/OEMFans.html
http://www.cincinnatifan.net/pressureblower.html
Add Comment
Business Articles
1. Finding A Trusted Sustainability Consultant In Abu DhabiAuthor: Agile Advisors
2. Iso Certification In Dubai – Advantages For Business
Author: Agile Advisors
3. Best Forex Brokers List | Best Broker For Forex Trading 2024
Author: Top Forex Brokers Review
4. Celebrate Achievements With Customized, High-quality Awards From Trophy Deals
Author: Trophy Deals
5. Is 100% Company Ownership Possible For Expats In Saudi Arabia?
Author: jodonjo
6. We Are Hiring: Senior Executive - Indirect Taxation In Gurgaon!
Author: tanvir Khan
7. Ceratec Tower 1o8: The Eventual Fate Of Business Greatness In Balewadi, Pune
Author: Tarun
8. Enrofloxacin Manufacturer: Swisschemie
Author: Swisschemie
9. Ultimate Guide To Hotels In Mussoorie: Discover The Best Places To Stay, Including Hr Hotels And Resorts
Author: Hr Hotels and Resort
10. How Quickly Do Fast Cash Loans Online Pay Out Cash On The Same Day?
Author: Lucy Lloyd
11. Leading Digital Marketing Agency In Hyderabad And Unlock Your Brand’s Potential With Sanbrains Agency
Author: Sanbrains Seo
12. Celebrate Success With Customized Awards From Trophy Deals
Author: Trophy Deals
13. Title: Choosing The Right Humidity Stability Chamber Supplier For Your Manufacturing Needs
Author: bio gene
14. Complete Guide To Studying Mbbs In Poland
Author: Mbbs Blog
15. What Is The Process For Locating The Best Lender For Short Term Loans Online?
Author: Robert Miller