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.

Active Publication Date: 2015-05-13
STERLING IND CONSULT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is always a residual leakage gap between the blade units, this leakage gap is small enough that it does not counteract the ingress of gas

Method used

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

Examples

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Embodiment Construction

[0026] exist figure 1 In the case of the side channel pump according to the present invention, the rotating shaft 14 is rotatably installed in the pump casing 15 . The pump casing 15 has an inlet hole 16 and an outlet hole 17 , wherein the inlet hole 16 is arranged concentrically with the rotating shaft 14 . The end of the pump casing 15 opposite the inlet hole 16 is designed as a split cage 18 in which the magnet elements 19 connected to the rotating shaft 14 are arranged. A magnet element 19 is arranged outside the split cage 18 , said element being connected to the output shaft of the electric motor 21 . The electric motor 21 has a controller 35 .

[0027] If the electric motor 21 is operated, the magnet element 20 performs a rotational movement about the split cage 18 . Rotation is also applied to the shaft 14 by magnetic transmission, so that it rotates in synchronization with the output shaft of the motor 21 . Since one end of the shaft 14 enters the inlet hole 16 an...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D5/00F04D15/00
CPCF04D5/006F04D15/0066F04D9/006F04D1/06F04D9/02F04D29/08F04D29/42
Inventor 海纳·科斯特
Owner STERLING IND CONSULT GMBH
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