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Multiple pump arrangement

A technology of eccentric screw pump, casing, applied in the direction of pump, pump element, pump control, etc.

Inactive Publication Date: 2015-08-05
NETZSCH PUMPEN & SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] But neither known eccentric screw pumps nor eccentric screw pump systems are sufficient to meet this requirement

Method used

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Embodiment Construction

[0041] according to figure 1 The device shows an eccentric screw pump 2 with a first delivery module 4 and a second delivery module 6 each comprising a stator 8 and a rotor 10, the first delivery module and the second delivery module passing through the flow housing 12 interconnected. On the end of the eccentric screw pump 2 opposite the drive mechanism 14 , a pressure housing 16 with a pressure connection 18 is arranged on the second delivery module 6 . The two delivery modules 4 , 6 are structurally identical and have a left-handed pitch L. The flow-through housing 12 is a pressure housing or a suction housing provided with a closure means 20 . The closure means 20 should be arranged in the vicinity of the pressure housing in order to avoid dead spaces which would adversely affect the flow course and thus interrupt the conveyed medium.

[0042] The eccentric screw pump 2 is equipped with support feet, not shown here. The non-conveying pipe connections of the flow housing...

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Abstract

The invention relates to an adaptive eccentric screw pump (2), which enables, if necessary, an increase of the output, the pressure and / or the simultaneous output of more than one output medium, and wherein the eccentric screw pump (2) has comparably low energy consumption and the production and maintenance expenditure thereof is kept low. For this purpose, according to the invention, the eccentric screw pump (2) is equipped with a modular output system, comprising at least two output modules (4, 6, 38, 40) comprising in each case one rotor (10) and one stator (8), wherein the output modules (4, 6, 38, 40) are coupled to one another and merely one actuation unit (14) is associated with the output system, and wherein the output system for an output medium has more than one inlet and / or outlet (18, 24) or at least one modular perfusion housing (12).

Description

technical field [0001] The invention relates to an eccentric screw pump. Background technique [0002] Eccentric screw pumps are used in different fields, for example in agriculture, chemical industry, food industry and paper industry. Eccentric screw pumps belong to the category of rotary positive displacement pumps and consist essentially of a rotor and a stator in addition to the drive mechanism. The helical rotor of the eccentric screw pump is characterized by a large pitch, a large thread depth and a small thread inner diameter. The stator is one more pitch than the rotor and the stator has twice the pitch length of the rotor. Between the stator and the rotor is formed a conveying space which moves continuously from the inlet side to the outlet side and in which conveying medium can be conveyed. [0003] The rotors of eccentric screw pumps are usually made of wear-resistant materials, such as steel. The stator, on the other hand, is usually made of elastic material,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/107F04C11/00F04C14/02F04C13/00
CPCF04C2220/00F04C2240/70F04C14/02F04C11/001F04C13/00F04C2/1071F04C2/107F04C15/008F04C18/107F04C23/001F04C29/0085
Inventor H·韦伯
Owner NETZSCH PUMPEN & SYST
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