NSR series Roots blower

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NSR series Roots blower

The determination of the flow rate can be converted as described in this sample. When it comes to special media such as hydrogen, ammonia, mixed gas, etc., you can contact our company's technical department to coordinate.

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Product description

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Selection of blower

1. Selection steps

a. Purpose: distinguish between blast use and vacuum use,

b. Gas properties: air, coal gas or other media

c. Working conditions parameters: intake temperature, intake pressure, boost (exhaust pressure or vacuum), flow, and requirements for exhaust temperature and noise

d. Environmental conditions: installation location, local atmospheric pressure, annual average temperature, etc.

NSR系列罗茨鼓风机

NSR features:

(1) The inlet of the fan adopts a spiral type. When the impeller is rotating, the top boss is cut into the casing through a spiral line to form a cavity that opens and closes sequentially, thereby reducing the pulsation of the fan.

(2) The rotor adopts a more advanced profile, its area utilization factor reaches 0.53, the volumetric efficiency is increased by 5% to 8% when the pressure is boosted to 98kPa, and the noise is reduced by about 5dB (A).

(3) The rotors are all produced by precision CNC special equipment (CNC bidirectional curved surface planer), and are quality inspected by the three-coordinate measuring center, so there is no performance error between each fan. The rotor part undergoes dynamic and static balance tests before assembly, so the fan vibration is extremely small.

(4) High-precision grinding gears are used to reduce mechanical noise. The gear accuracy is level 5 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 spray or leak oil, and eliminate the on-site pollution caused by the oil injection and oil leakage of the old Roots blower.

(6) Cooperate with a Beijing Institute of Acoustics to build an "Echo Corridor" structure on the wall panel. This structure not only helps the lubricant to dissipate heat, but also reduces 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 the components of the fan has been realized. This reduces production costs and shortens the delivery period. Under normal circumstances, the fan has a moderate amount of inventory and can be supplied on the same day.