Principle of Fire High Temperature Smoke Exhaust Axial Flow Fan

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

Classified by installation method, horizontal and roof mounted (W-based hollow)

According to the wind pressure of the scenery, there are two types of lightning pressure: Type I and Type II (dual speed), medium pressure display (with inclined flow impeller), III and IV sacral (dual speed), and low pressure display

Compression type 1, D2 type-

According to the speed regulation method, it can be divided into single speed, double violation, and variable speed (using a variable cheek heart machine, equipped with a variable frequency controller, and implementing stepless speed regulation to adapt to different working conditions. It is recommended to adjust the jerk mirror to be set between 25 days x and 50 mesh z). 1.3. To meet the noise requirements of different places, fans can be equipped with mufflers of different lengths, which can be made into wrapped types

2. Working conditions

Working temperature: -20~+60 ℃ (can operate continuously):

Temperature resistance: 100 ℃ (can operate continuously for 20 hours), 30a ℃ [can be j]

Humidity:<90%;

Media conditions; Air (with a dust content not exceeding 100 mg/m)

Working day; Three phase, 38OV/5Ohz

3. Fan application

Threshold machines can be widely used in high-rise buildings, ovens, underground vehicles E

4. Fan configuration

4.1 Standard Configuration

Continuous operation for 60 minutes),

E Road and other messy smoke exhaust yards.

Impeller, casing (air duct, guide vanes, inner arrow, motor bracket), · motor t

Cooling impeller; Weijiao: Cooling air duct.

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

※ Vibration reduction equipment; Control box: ※ o cover; Spot 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 undergoes static and dynamic balance correction. The balance accuracy shall not exceed G5.6.

5-2. The outer flange is made by integral edge spinning-