Fire exhaust fan

Release date: 2024-12-19 09:07:01 Reading volume: 1381 Author: Keruite

1、 Overview1.1. The HTF type firefighting high-temperature smoke exhaust axial flow fan has a

1、 Overview

1.1. The HTF type firefighting high-temperature smoke exhaust axial flow fan has a basic form of axial flow structure, adopts a high-temperature resistant motor, and is equipped with a special motor cooling system. The product has been tested for high temperature resistance by the National Fire Equipment Supervision and Quality Inspection Center according to GA211-1999 "Test Method for High Temperature Resistance of Firefighting Smoke Exhaust Fans". It can be continuously operated for more than 60 minutes at a medium temperature of 300 ° C and for 20 hours/time at a temperature of 100 ° C without damage. It can be used for both ventilation and smoke exhaust purposes.

1.2. Product classification

Divided by installation method: horizontal and roof mounted (W-shaped).

According to air volume and pressure, there are two types of atmospheric pressure: Type I and Type II (dual speed); There are III and IV types (dual speed) of medium pressure type (with inclined impeller); Low voltage types include D1 and D2.

According to the speed regulation method, it can be divided into single speed, dual speed, and variable frequency (using a variable frequency motor, equipped with a variable frequency controller, implementing stepless speed regulation to adapt to different working conditions, it is recommended to adjust the frequency to be locked at 25Hz~50Hz).

1.3. To meet the noise requirements of different places, fans can be equipped with mufflers of different lengths or made into wrapped types.

2、 Working conditions

Working temperature:- 20~+60 ° C (can operate continuously);

High temperature resistance: 100 ° C (can operate continuously for 20 hours), 300 ° C (capable of continuous operation for 60 minutes);

Humidity:< 90%；

Medium conditions: air (with a dust content not exceeding 100mg/m3);

Working power supply: three-phase, 380V/50Hz.

3、 Fan application

Fans can be widely used in ventilation and smoke exhaust places such as high-rise building ovens, underground garages, tunnels, etc.

4、 Fan configuration

4.1. Standard configuration

● Impeller; ● Machine casing (air duct, guide vanes, inner cylinder, motor bracket); ● Motor; ● Cooling impeller; ● Bottom line; ● Cooling air duct.

4.2. Optional parts and accessories (indicate whether to purchase when ordering)

※ Vibration reduction equipment; ※ Control box; ※ Net cover; ※ Docking flange.

5、 Processing technology

5.1. The fan impeller is made of steel, the hub is hydraulically stretched and formed, the blades are hydraulically formed after stamping, and the blades are welded and assembled with the hub. The impeller has undergone static and dynamic balance correction, and the balance accuracy is not greater than G5.6 level.

5.2. The outer flange is made by integral flanging and spinning.

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