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Eccentric screw pump having an automatic adjustment system and adjustment method

An eccentric screw pump, adjustment technology, applied in the direction of the pump, pump control, pump components, etc., can solve the problem of increasing the weight of the stator-rotor-system

Inactive Publication Date: 2017-09-26
NETZSCH PUMPEN & SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a significantly higher weight of the stator-rotor-system
Furthermore, all clamping devices must be tightened individually for fine adjustment

Method used

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  • Eccentric screw pump having an automatic adjustment system and adjustment method
  • Eccentric screw pump having an automatic adjustment system and adjustment method
  • Eccentric screw pump having an automatic adjustment system and adjustment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] FIG. 1 shows a schematic partial view of a known stator-rotor system 1 for an eccentric screw pump. Such a system 1 comprises a generally metallic, single-filar helical rotor (not shown) and a stator 3 with double-filar threads. During operation of the eccentric screw pump, the rotor performs an eccentric rotational movement with its body axis about the longitudinal axis X3 of the stator. The stator 3 comprises an elastomer part 4 and a stator housing 5 , wherein there is no fixed connection between the elastomer part 4 and the stator housing 5 .

[0051] figure 2 A schematic partial view of a first embodiment of a stator-rotor system 10 according to the invention is shown, which has an adjusting mechanism 12 for fine adjustment or adjustment of the stator 3 . The adjustment mechanism 12 includes a fixed first adjustment element 13 and a second adjustment element 14 with a variable position. A change in the distance between the two setting elements 13 , 14 leads to d...

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PUM

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Abstract

The invention relates to an eccentric screw pump comprising a stator-rotor system having a rotor with a rotor screw and a stator with an inner thread. The stator comprises a support element and an elastomer part, wherein the support element completely surrounds some sections of the elastomer part. According to the invention, the stator-rotor system has an adjustment mechanism for adjusting the stator. The adjustment mechanism is coupled via a controller to at least one sensor for determining actual operating parameters of the stator-rotor system and / or of the eccentric screw pump, wherein an actuation of the adjustment mechanism can be carried out by the controller, taking into consideration the actual operating parameters determined by means of at least one sensor. The invention also relates to a method for adapting the operating state of an eccentric screw pump.

Description

technical field [0001] The invention relates to an eccentric screw pump according to the features of the preambles of claims 1 and 7 and to a method for adjusting the operating state of an eccentric screw pump. Background technique [0002] The invention relates to an eccentric screw pump for conveying liquid and / or granular media. [0003] Eccentric screw pumps are pumps for conveying a wide variety of media, especially viscous, highly viscous and abrasive media such as slurries, liquid manure, oil and fats. In this case, a driven, helical rotor rolls in a stator. The stator is a housing with a screw-shaped coiled inner side. For this purpose, the rotor performs an eccentric rotational movement with its main body axis about the stator axis. The outer screw, ie the stator, is in the form of a double thread, while the rotor screw is only single threaded. The rotor is usually made of a highly abrasion-resistant material, such as steel. The stator, on the other hand, consi...

Claims

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Application Information

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IPC IPC(8): F04C2/107F04C14/00F04C14/28
CPCF04C2/1071F04C2/1075F04C14/00F04C14/28F04C2240/81F04C2240/811F04C2270/175
Inventor S·福伊特C·科奈德H·卡莫尔C·宾迪格M·特克纳彦
Owner NETZSCH PUMPEN & SYST
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