Fire resistant dual speed smoke exhaust fan

Fire resistant dual speed smoke exhaust fanA new type of fan between axial flow and centrifugal fans, which has the characteristics of high pressure of centrifugal fans, high flow rate of axial flow fans, high efficiency, good energy saving, low noise, and easy installation. This series of ventilation fans is designed with a new type, compact structure, small volume, light weight, easy installation, and can save 20% of electricity compared to old centrifugal fans. When the speed is less than 2000r/min, the noise is less than 75dB (A). When the fan is connected to the pipeline and installed in the air conditioning box, the noise is less than 70dB (A). Can replace medium and low pressure centrifugal fans below 200Pa, widely used in industrial and civil building ventilation and dust removal. The PYHL-14A series fan is a derivative product of the HTF series. The inlet end of the fan is equipped with a collector muffler, and the product can operate normally for 1 hour at an ambient temperature of around 300 ℃. It can provide ventilation and smoke exhaust at high temperatures, and is suitable for fire protection facilities such as underground tunnels, underground shopping malls, and underground garages.

Fire resistant dual speed smoke exhaust fanfeature

1. The HTF series fire high-temperature smoke exhaust axial flow fan has the characteristics of excellent performance, good high temperature resistance, high efficiency, less land occupation than centrifugal fans, and easy installation.

2. The HTF series high-temperature smoke exhaust axial flow ventilation fan has been tested and qualified by the fixed fire extinguishing system and fire-resistant construction quality supervision and inspection center. Its performance has reached the high-quality level in China and has been recognized by more than 30 provinces and cities nationwide. This wind turbine is exported to various provinces (cities) and autonomous regions across the country.

3. Excellent high temperature resistance performance: The fan test meets the requirements of GB/T13274-91 "Technical Conditions for General Purpose Axial Flow Fans" and GA211-2009 "High Temperature Resistance Test Method for Fire Exhaust Fans" fire code standards. The fan is designed with a built-in high temperature resistant motor and equipped with a motor cooling system. It can operate continuously for more than 100 minutes at 300 ℃ and continuously for 20 hours/time at 100 ℃ without damage. Widely used in high-rise civil buildings, underground garages, tunnels, subways and other occasions.

4. Wide application range: It can be driven by variable speed or multi speed according to the different requirements of civil buildings to achieve the purpose of dual-use (i.e. ordinary ventilation and high-temperature smoke exhaust for firefighting). The blade type is divided into axial flow smoke exhaust HTF (GYF) - I, II, D1, D2 and mixed flow smoke exhaust HTF (GYF) - III, IV, and can also be made into roof type and silencing type.

5. High efficiency: This series of fans adopts high-quality CAD software and is a new product developed through multi-objective optimization design. Tests have shown that the fan efficiency is greater than 80%, and some large machine numbers are greater than 85%. It also has the characteristic of a flat efficiency curve, which is conducive to energy conservation.

6. Easy to install and requires less space for centrifugal fans: The basic form of this fan is an axial flow fan or a mixed flow fan, which can be directly connected to the air duct or wall mounted. The installation form can be vertical or horizontal, which greatly saves space.