Tunnel jet fan

Tunnel jet fan

Tunnel jet fan has:Unidirectional jet fan, bidirectional jet fan. There are electronic and mechanical types of bidirectional jet fans. can be30Switch to the rated speed of the fan in both forward and reverse directions within seconds. For occasions with high noise requirements, mufflers can be added to reduce their noise. Product features:The shell is formed by spinning and flanging with a specialized machine tool imported from the United States, and the inner wall of the impeller section is precision machined, Corrosion resistance, reliability, and economy, Silencers can also be added to reduce its noise. Direct drive, low maintenance workload.

Tunnel jet fan

New efficient and energy-saving tunnelfanBoth ends can be equipped with noise reduction devices, which can control the noise level80Within decibels

The tunnel counter cyclone press in fan is a new generation of energy-saving local ventilation fan developed and produced based on the summary of the existing counter rotating axial flow fan structure and technical performance in China.

The tunnel has the characteristics of reasonable structure, complete specifications, high efficiency, obvious energy-saving effect, low noise, and long air supply distance for the cyclone press in fan.

According to different ventilation resistance requirements, the cyclone press in fan in the tunnel can be used as a whole machine or in stages, thereby reducing ventilation power consumption and saving energy. The length of the tunnel is2000mThe internal fan can supply air normally without moving, reducing the labor intensity of workers and saving ventilation time, making it an ideal equipment for tunnel ventilation.

Tunnel mounted cyclone fans can be used for high-pressure ventilation in industries such as metallurgy, non-ferrous metals, gold, chemical, shipbuilding, and ceramics.

Tunnel to cyclone machine
Jet fan is a special type of axial fan mainly used in longitudinal ventilation systems of tunnels such as highways, railways, and subways, providing all the thrust;It can also be used in sensitive areas of semi transverse ventilation systems or transverse ventilation systems, such as the inlet and outlet of tunnels, to induce airflow or exhaust smoke.

1、 Introduction to Jet Fan

Jet fan is a special axial flow fan with open inlet and outlet. Under these working conditions, the fan is designed to have a high efficiency(Exceeding the operating point with a certain static pressure)The force exerted by a jet fan on the air, commonly known as--Thrust, the force exerted on the fan support'Equal magnitude, reverse direction'.

2、 Key points for product selection

1. The selected control parameters for the jet fan are:Airflow, wind pressure, noise, etc.

2. Jet ventilation fans are mainly used in longitudinal ventilation systems of parking garages or other sports and commercial venues. The fans are generally suspended at the top or on both sides of the room, do not occupy building area, and do not require additional air ducts. They have the characteristics of high efficiency, low noise, smooth operation, and easy maintenance.

3、 Execution standards

product standard

GB/T13274-1991Technical Specifications for General Purpose Axial Flow Fans

GB/T3235-1999Basic Types, Dimensional Parameters, and Performance Curves of Ventilation Fans

GB/T2888Measurement Method for Noise of Fans and Roots Blowers

JB/T8690-1998Noise Limits for Industrial Ventilators

GB19761-2005Ventilation functional efficiency limit values and energy-saving evaluation values

Engineering standards

GB/T10178-88Field Test of Ventilation Fan

GB50275-98Code for Construction and Acceptance of Compressor, Fan, and Pump Installation Engineering

GB50243-2002Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering

GB50019-2003Design Code for Heating, Ventilation and Air Conditioning