What are the types of fire exhaust fans?

2. The project information applied by the fan shall also be reported to the corresponding website of the Ministry of Public Security for the record.

Fire and smoke exhaust fan, also known as "fire fan, fire and high temperature smoke exhaust fan", has three common types: HTF fire and high temperature smoke exhaust fan, PYHL-14A fire and smoke exhaust fan, HTFC cabinet centrifugal fan.

1, HTF fire high temperature smoke exhaust fan
HTF fire high temperature smoke exhaust fan, its full name is "HTF fire high temperature smoke exhaust axial flow fan", can be attributed to the types of axial flow fan; It can also be referred to as "HTF fire fan, HTF fire exhaust fan".

According to GA211-2009 "High Temperature Resistance Test Method for Fire and Smoke Exhaust Fans", the fan has been run continuously for more than 60 minutes by "National Center of Fire Equipment Supervision and Quality Inspection". In the high temperature resistance test, the fan can run continuously for more than 60 minutes under the condition of medium temperature of 300℃. At the temperature of 100 degrees, 20 hours/time continuous operation.

HTF fire fan mainly has "type Ⅰ (single speed), type Ⅱ (double speed)" and other two main types. Among them: type Ⅰ single speed fan, machine number from "3.5-16" has a total of 17 specifications; Type Ⅱ two-speed fan, machine number from "5-16", 14 kinds of specifications in total.

2, PYHL-14A fire exhaust fan
PYHL-14A fire and smoke exhaust fan, full name "PYHL-14A fire and smoke exhaust mixed flow fan", also known as "PYHL-14A fire fan, PYHL-14A fan"; It is an upgraded model of HL3-2A low noise mixed flow fan (common exhaust fan).

The fan has been subjected to high temperature test by the "National Center of Fire Control Equipment Supervision and Quality Inspection" according to GA211-2009 "High Temperature Resistance Test Method for Fire Control and Smoke Exhaust Fans". The fan has been operated continuously for more than 60 minutes under the high temperature condition of 280℃ medium temperature; Under the condition of 100 degrees, a continuous operation for 20 hours without damage.

PYHL-14A fire fan also has two main types of "single speed and double speed", machine number from "2.5A-12.5A", a total of 21 specifications.

3. HTFC cabinet centrifugal fan.
HTFC cabinet centrifugal fan, the full name of "HTFC (DT) cabinet centrifugal fan", also known as "HTFC cabinet fan, HTFC fan, cabinet fan", often called "cabinet centrifugal fan".

The fan is A kind of box centrifugal fan with high efficiency and low noise. There are two types: type A and type B (type A: the motor is outside the box for fire fighting and smoke exhaust; Type B: motor in the box, mainly used for ventilation).

Among them, type A has been subjected to high temperature resistance test by "National Fire Equipment Supervision and Quality Inspection Center" according to GA211-2009 "High Temperature Resistance Test Method for Fire and smoke Exhaust Fans". It can run continuously for more than 60 minutes under high temperature conditions of 300℃.

The fan is divided into two main types: "single speed and double speed", with 19 specifications ranging from "9-30".