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Hebei Jet Fan-Tunnel Jet Fan-Jin Blower Group Company:Tianjin fan , Tianjin blower , Tianjin fan
Tunnel jet fans are now widely used in various engineering fields. If the working interface of the tunnel jet fan is small, the air volume of the tunnel fan must be adjusted. The tunnel jet fan performs ventilation in the tunnel, so its air volume is generally relatively large, so its energy saving needs to be worked on. Now what are the characteristics of tunnel jet fans?
① Easy to repair
The tunnel jet fan is composed of two-stage non-aluminum blades, which can be combined in the middle, which brings cheapness for assembly, repair and blade adjustment.
② Low noise
The first and second generators of the tunnel jet fan are swirling, and the pressure of the fan is increasing, and the position of the atmosphere is smoothed, and the atmosphere conflict sound is increased. In addition, the casing adopts a porous lookout plate and special sound absorption information. Because the noise of parts running is under 85 decibels, the music purification has lost a significant improvement.
③ High efficiency
What are the characteristics of the tunnel jet fan? The tunnel jet fan is conceived excellently and the process is conservative. Its blade adopts the ternary fluid design, with a twisted wing shape, an all-steel structure, and its position is adjustable. Due to the large working area of the tunnel jet fan, Keep working tunnel jet fans within the scope of a useful mission.
④ Significant energy saving effect
The tunnel jet fan can be used in three ways in the ground moving of the tunnel. The low-speed operation within 600 meters in the later period consumes one-sixth of the total installed power. One thousand five hundred meters runs at process speed, the jet fan is quoted, and the energy consumption is one third of the total installed power. Beyond one hundred and fifty meters, the high speed operation of the tunnel jet fan is equivalent to three fans without the same power. Hebei jet fan has remarkable energy saving effect.
The basic features of the tunnel jet fan are energy saving, useful, low noise, and easy repair. For some large tunnel construction, the use of the tunnel jet fan can greatly increase its ventilation effect, and the angle of its blades It can be adjusted. As long as it is used correctly and pay attention to protection, the working efficiency of the tunnel jet fan will never decrease.
Jet unloading in tunnel
a. Determine the location where each fan should be installed, and transport it to this location. Due to the large size, length, and heavy cargo of the fan transport vehicle, there should be 2-3 personnel to direct the traffic in the tunnel, and the vehicle should be moved slowly.
b. After the fan is delivered in place, remove the fan, jet the fan manufacturer, and place it properly, waiting for disassembly, installation.
In this process, there should be one crane driver and two cranes operating uniformly, and strictly observe the lifting operation procedures.
Laying and connecting cables
The fan leads are concealed by steel pipes and communicate with the cable trench. Check that the cable specifications and designs are consistent with the design and whether the connection phase sequence is consistent with the design drawings.
Air velocity in the tunnel, proximity of fans to walls and vaults
Fan thrust is measured under air static conditions based on the change in air momentum of the fan. If the air at the fan inlet is in a moving state, the change in the air momentum in the fan must be reduced. If the installation location of the jet fan is close to the tunnel wall or vault, additional friction loss will inevitably occur between the air jet and the wall or vault.
The ratio of power consumption and thrust of a jet fan is related to the wind speed at the exit of the fan. For a given thrust requirement, the higher the outlet wind speed, the greater the power consumption. Therefore, in order to reduce operating costs, jet fan manufacturers should choose fans with large diameter, low speed or small blade angle as much as possible. For a given fan size, if its thrust is reduced, it will inevitably lead to an increase in the number of fans, thereby increasing the investment in the fan itself, but at this time the wind speed at the outlet of the fan will also be reduced, making the muffler cancel or reduce its length.
Compared with unidirectional fans, reversible fans are slightly less efficient and have higher noise, but they can make tunnels more selective. In the case of special needs, the one-way tunnel can be used for two-way operation. In the event of a fire, the fan can reverse the exhaust smoke.
Jet Fan Quotations-Hebei Jet Fan-Jin Blower Group Co., Ltd. (view) is provided by Jin Blower Group Co., Ltd. "Fan blower ventilator centrifugal fan" was selected by Tianjin Blower Group Co., Ltd. (fuzzlinks.com). The company is located at No. 9 Xishui West Road, Beichen District, Tianjin. For many years, Jin Blower has been adhering to provide customers with good Service, Contact: Mr. Mao. Welcome new and old customers to call us, email us, visit us and negotiate business. Jin Blower looks forward to becoming your long-term partner!
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