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Gansu Roots Fan-Jin Blower Group Co., Ltd.-Roots Fan Quote:Tianjin fan , Tianjin blower , Tianjin fan
The mechanism of roots fan noise
Noise source of roots fan
Roots fans contain a variety of noise sources. The roots of Roots fan brands include the following:
(1) aerodynamic noise radiated from air inlets and outlets;
(2) Mechanical noise radiated by the casing, electric idea, and bearings;
(3) Structure-borne sound of root radiation vibration. Among these local noises, the aerodynamic noise (abbreviated as aerodynamic noise) radiated from the inlet and outlet parts is strong. Others, such as mechanical noise and electromagnetic noise, are unnecessary under the premise of normal operation of the fan . According to the spectrum analysis of the noise generated by the roots fan, its characteristics are low-frequency broadband. The aerodynamic noise of the fan is mainly composed of two parts: torsional noise and eddy current noise.
Roots blower maintenance process and quality standards
1 Preparation before disassembly
(1) Master the operation of the fan, and prepare necessary drawings and documents.
(2) Have all maintenance tools, measuring tools, hoisting tools, accessories and materials available.
(3) Cut off the power supply, and the process is in compliance with the conditions of safety maintenance.
2 Disassembly and inspection
(1) Remove all accessories from the fan, large Roots fan, check the gap between the rotors, and between the rotor and the side wall.
(2) Remove the coupling or pulley, check the elastic ring or V-belt.
(3) Remove the gear box, check the tooth surface and adjust the gear bolts.
(4) Remove the bearing and bearing box, and check the oil seal and bearing.
(5) Remove the sealing parts, and check the sealing parts such as the labyrinth sleeve, moving ring, static ring, and O-ring.
(6) Remove the wall plate and check the wall plate and rotor.
3 Quality standards
Roots fan noise reduction measures
Roots blower is a typical positive displacement blower. It changes the mechanical energy of the original idea into the pressure and kinetic energy of the gas depending on the change of the rotor volume. Compared with the centrifugal blower, it has the advantages of high head, low flow affected by resistance, constant air supply, etc. Gansu Roots blower, but in the process of application, there are defects such as low efficiency and high noise. Roots fans are widely used in chemical plants, especially small and medium-sized chemical plants, because the larger noise of the fans worsens the labor premise. The selling price of Roots fans has polluted the career situation, so it has increasingly aroused people's attention to fan noise. The research task of the mechanism and prevention methods of fan noise was discussed. The research on centrifugal fans and axial fans has become more and more perfect in this regard. This article mainly analyzes the aerodynamic noise sources of Roots fans and the mechanism of their occurrence. Based on the comprehensive use cases, various types of noise reduction methods are proposed. Methods, and the necessary ways to reduce the noise of Roots fans were discussed.
Roots fan brand-Gansu Roots fan-Jin Blower Group Co., Ltd. is provided by Jin Blower Group Co., Ltd. Roots Blower Brand-Gansu Roots Blower-Jin Blower Group Co., Ltd. is a new upgrade launched by Jin Blower Group Co., Ltd. (fuzzlinks.com) this year, the above pictures are for reference only, please call this page or the pictures on Phone number, contact person: Mr. Mao.
- Tianjin Jin Blower Group (Photo) -Yunnan Roots Fan-Roots Fan
- Zhejiang Roots Fan-Large Roots Fan-Jin Blower Co., Ltd.
- Gansu Roots Fan-Jin Blower Group Co., Ltd.-Roots Fan Quote
- Jin Blower Group Co., Ltd. (Figure)-Roots Fan Price-Hebei Roots Fan
- Jiangsu Roots Fan-Jin Blower (Recommended Business)-Roots Fan Brand
- Tianjin Roots Blower-Roots Blower Brand-Tianjin Jin Blower Group
- Roots fan manufacturer-Guangxi Roots fan-Tianjin Jin Blower Group
- Shaanxi Roots Fan-Roots Fan Manufacturer-Jin Blower Group Company
- Shandong Roots Blower-Jin Blower Co., Ltd.-Roots Blower Manufacturer
- Jin Blower Group Co., Ltd. (Figure) -Roots Fan Price-Anhui Roots Fan