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Thermal barrier

A technology of heat blocking and fixing mechanism, applied in mechanical equipment, machine/engine, liquid fuel engine, etc., can solve the problems of inner ring expansion, shortened service life, reduced pump efficiency, etc., to achieve the effect of reducing heat and optimal placement

Pending Publication Date: 2021-11-05
KSB AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the thermal barrier function exists only at the interface with the shaft end of the motor
However, since the heat is directly transferred to the inner ring of the deep groove ball bearing, the inner ring expands and the bearing warps, resulting in shortened service life
In the embodiment operated with coolant, the outer rotor runs in coolant, which leads to considerable frictional losses, which significantly reduce the efficiency of the pump

Method used

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Examples

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Embodiment Construction

[0023] figure 1 The pump assembly 1 is shown in the form of a magnetically coupled pump assembly. The pump unit 1 has a multi-part housing unit 2 with a hydraulic housing 3 designed as a screw housing, a housing cover 4, a bearing bracket crown 5, a bearing bracket 6 and a bearing cover 7 .

[0024] The hydraulic housing 3 has an inlet opening 8 for sucking in the conveying medium and an outlet opening 9 for discharging the conveying medium. The housing cover 4 is arranged on the side of the hydraulic housing 3 opposite the inlet opening 8 . The bearing support dome 5 is fastened to the side of the housing cover 4 facing away from the hydraulic housing 3 . The bearing bracket 6 is installed on the side of the bearing bracket raised top 5 opposite to the housing cover 4 . The bearing cover 7 is fixed on the side of the bearing bracket 6 away from the bearing bracket crown 5 again.

[0025] The receiving tank 10, which is preferably produced by deep drawing or casting, is f...

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PUM

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Abstract

The invention relates to a pump arrangement (1), in particular a magnetic clutch pump arrangement, comprising an inner chamber (11) formed by a housing arrangement (2), a separating can (10) which hermetically seals a chamber (12) enclosed by it with respect to the inner chamber (11) formed by the housing arrangement (2), an impeller shaft (13) that can be driven in rotation about an axis of rotation (A), an impeller (16) arranged on one end of the impeller shaft (13), an inner rotor (17) arranged on the other end of the impeller shaft (13), a drive device, a drive shaft (20) that can be driven in rotation about the axis of rotation (A) by the drive device, and an outer rotor (24) which is arranged on the drive shaft (20) and co-operates with the inner rotor (17), wherein the outer rotor (24) comprises a first carrier element (25) and a second carrier element (32) connected to the first carrier element (25), the first carrier element (25) comprising a thermal barrier device (37).

Description

technical field [0001] The present invention relates to a pump assembly, in particular a magnetically coupled pump assembly, having: an inner space formed by a housing assembly; the chamber is hermetically sealed with respect to the interior space formed by the housing assembly; an impeller shaft rotatably driven about the axis of rotation; an impeller disposed at one end of the impeller shaft; an inner rotor disposed at the other end of the impeller shaft; drive means; a drive shaft rotatable about an axis of rotation that can be driven by a drive device; and an outer rotor arranged on the drive shaft and cooperating with the inner rotor, wherein the outer rotor has a first support part and a second support part connected to the first support part . Background technique [0002] This type of pump assembly is very common and is used in almost all industries. Machines of the current type are also used in areas at risk of explosion. For various production and conveying equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/02F04D29/58
CPCF04D13/024F04D29/5853F04D13/02F04D13/026F04D29/58F04D29/62
Inventor J·格罗舍尔
Owner KSB AG