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NSR Vertical Silencer Roots Blower/Roots Vacuum Pump
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- Product Description
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Selection of Blower
1. Selection steps
A. use: distinguish between blast use or vacuum use,
B. gas properties: air, gas or other media
c. Operating parameters: intake temperature, intake pressure, boost (exhaust pressure or vacuum), flow rate, and requirements for exhaust temperature and noise value
d. Environmental conditions: installation site, local atmospheric pressure, annual average temperature, etc.
The determination of the flow rate by the roots blower can be converted as described in this sample. When it comes to special media such as hydrogen, ammonia, mixed gas, etc., you can contact the technical department of our company to determine.
NSR Features:
(1) The fan inlet adopts the spiral type. When the impeller rotates, the top boss cuts into the casing through the spiral line to form a cavity that opens and closes sequentially, thus reducing the pulsation of the fan.
(2) The rotor adopts a more advanced profile, its area utilization coefficient reaches 0.53, the volumetric efficiency is increased by 5% ~ 8% at a pressure of 98kPa, and the noise is reduced by about 5dB(A).
(3) The rotors are all produced by precision numerical control special equipment (numerical control bidirectional surface planer) and are inspected by the three-coordinate measurement center, so there is no performance error between each fan. The rotor part is fully tested by dynamic and static balance before assembly, so the fan vibration is extremely small.
(4) High-precision grinding gears are used to reduce mechanical noise. The gear accuracy is the 5-level accuracy required by the national standard GB/T 10095-2008.
(5) The new fully enclosed oil tank and lubrication system ensure that the fan does not inject oil or leak oil, and eliminate the on-site pollution caused by the oil injection and oil leakage of the old Roots blower.
(6) In cooperation with an acoustic research institute in Beijing, the "echo gallery groove" structure is constructed on the wall panel. This structure not only contributes to the heat dissipation of the lubricating oil, but also reduces the mechanical noise. In practice, this structure can effectively reduce noise by about 3-5dB(A).
(7) With the establishment and improvement of the company's quality management and production management system, the interchangeability of fan components has been realized. This reduces production costs and shortens the delivery period. Under normal circumstances, the fan has a proper amount of inventory, which can be supplied on the same day.
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