How it works: the usual two-speed high-temperature exhaust fan at low speed in order to meet the exhaust air flow, when a fire occurs, the temperature exhaust fan in the cabinet under the joint control of the role of automatic high-speed operation, in order to meet the needs smoke, while the fire smoke No action exhaust pipe smoke damper partition and make air duct smoke damper was smoke and makeup air, automatic smoke damper other smoke partition automatically shut cabinet under the joint control of the action. When the smoke When the temperature reaches 280 ℃, automatic smoke damper will automatically shut down, exhaust fan and make the fan automatically stop. storey 3.5 m, a total of five smoke partitions, fire design incorporates air conditioning and ventilation systems and smoke exhaust system combined approach. selected two-speed high-temperature exhaust fan, high speed exhaust volume of 63500 m3 / h, low exhaust volume of 35400 m3 / h, the amount of fresh air and blowing up air units to 32000 m3 / h, discharge smoke dampers used in all automatic smoke damper Scope:. MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan, is interposed between the axial and centrifugal fan A new wind turbine, which has a high pressure centrifugal fan exhaust fan manufacturers, large axial fan flow, high efficiency, energy saving low noise, and easy installation. MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan, novel design, compact structure, small size, light weight, easy to install, and old-fashioned compared to centrifugal fan can save 20% exhaust fan, the rotation speed less than 2000rpm, noise below 75dB two-speed fan control principle: The Company two-speed fan motors are equipped with two-speed electrically stator windings △ / XY (or Y / XY) exhaust fan service, speed By changing the basic principles of connection between the motor stator windings to change the number of poles in order to achieve the purpose of speed exhaust fan use, low-speed operation △ (or Y) mode, high-speed operation for the XY mode. Wind the electrical control box with circuit breaker, protection devices and other electrical components must be properly rational use of Pu'er rated capacity exhaust fan by fan, Chen Yu air conditioning, exhaust fan manufacturers by Wu Cheng Chen-yu air-conditioning Limited. Pu'er exhaust fan, Chen Yu air conditioning, exhaust fan manufacturers are wucheng Chenyu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: sand manager.