1、 Overview:

The HTFC (DT) series low-noise fire-fighting (dual-use) cabinet type centrifugal fan case is a highly effective and low-noise box type centrifugal fan designed and developed by Shanghai Jiao Tong University. The product consists of a low-noise forward leaning multi wing centrifugal fan, motor bearings, transmission components, and soundproof box. Depending on the installation position, 12 different angles of air inlet and outlet positions are provided to meet the needs of users in different installation environments. According to different requirements for fire protection and ventilation, there are two types: Type A and Type B. Type A motors are installed outside the box for fire smoke exhaust, and have been tested for high temperature resistance according to GA211-2009 "High Temperature Resistance Test Method for Fire Smoke Exhaust Fans" by the National Fire Equipment Supervision Quality Inspection. They can operate continuously for more than 60 minutes under high temperature conditions of 300 ° C; The B-type motor is installed inside the box for ventilation and air exchange.

2、 Type:

Fans are divided into twelve specifications based on diameter, ranging from 9-36. The series has an air volume of 1650-85000m3/h and a total pressure of 180-1000Pa. The HTFC cabinet centrifugal fan has been continuously improved and developed, and can now be divided into four types: I, II, III, and IV. Among them, I and III are single speed types. II. The IV type is dual speed, equipped with a dual speed motor to achieve two speed adjustments, which can meet the needs of users for performance adjustment at different operating points. The fan can also be equipped with a variable frequency motor and a variable frequency controller to achieve variable frequency speed regulation. It is recommended to lock the frequency between 25HZ and 50HZ

3、 Scope of application:

To meet the requirements of explosion-proof environments, the fan can be made into an explosion-proof fan with an explosion-proof rating of EXd II BT4, suitable for places with flammable and explosive gases.

To meet the requirements of different places, fans can be equipped with mufflers of different lengths, and the soundproof box of the fan can also be thickened to reduce fan noise.

　　Fans can be equipped with primary, medium, or significantly effective filters to improve air cleanliness. When configuring filters, actual pressure loss should be considered and the length of the fan casing should be appropriately increased.

4、 Parameter table: