Side-channel pump, and method for operating a side-channel pump

A side channel and channel technology, applied in the field of side channel pumps and running side channel pumps, can solve the problems of small leakage gaps and inability to offset the entry of gas.
CN104619989AActive Publication Date: 2015-05-13STERLING IND CONSULT GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
STERLING IND CONSULT GMBH
Publication Date
2015-05-13

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Abstract

The invention relates to a side-channel pump (28) and to a method for operating a side-channel pump (28) in which an impeller (22) rotates in a working chamber (23) provided with a side channel (24). According to the invention, the pump (28) is operated at an overspeed with a gas-filled working chamber (23) in a first step. The speed is then reduced to an operating speed in order to pump a liquid. The pump according to the invention has a high suction power as a result of the overspeed, but only gas is drawn initially.
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Description

technical field

[0001] The present invention relates to side runner pumps and methods for operating side runner pumps. In this pump, the impeller rotates in a working chamber with side flow passages. Background technique

[0002] Side channel pumps are used to pump liquids and gas-liquid mixtures. The advantage of a side channel pump is that even with relatively large amounts of gas entrained in the liquid, the operation of the pump is only slightly impaired.

[0003] Side channel pumps can also be used to pump in pure gas. For example, for pumping in liquid from a tank, even if the riser line is filled with gas. However, in the case of side-channel pumps according to the prior art, this is only possible if the working chamber contains a large amount of liquid. When the impeller rotates, a large amount of liquid forms a liquid ring in the working chamber, by means of which adjacent blade units are partially closed relative to each other. Although there is always a resid...

Claims

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