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Slide ring seal arrangement with coated bellows unit

A mechanical sealing device and bellows technology, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve problems such as warping, and achieve the effect of preventing deposition, avoiding tension or warping

Inactive Publication Date: 2019-03-01
EAGLEBURGMANN GERMANY GMBH &CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in mechanical seal arrangements with bellows units, the shrinking process often causes warping of the slip rings in the slip ring support, which may require extensive post-processing

Method used

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  • Slide ring seal arrangement with coated bellows unit
  • Slide ring seal arrangement with coated bellows unit
  • Slide ring seal arrangement with coated bellows unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Hereinafter, the mechanical seal device 1 of the first preferred exemplary embodiment of the present invention will be described in detail.

[0026] as in figure 1 As can be seen in the figure, the mechanical seal device 1 includes a mechanical seal part having a rotary slip ring 2 and a fixed slip ring 3 , and a sealing gap 4 is defined between the rotary slip ring 2 and the fixed slip ring 3 .

[0027] In addition, the mechanical seal device 1 is included in the figure 2 The bellows unit 5 can be seen in detail in . The bellows unit 5 comprises a flexible bellows element 50 , a bellows support 51 and a slip ring support 52 . The flexible bellows element 50 is a bellows of metallic material, in particular of spring steel material. In this exemplary embodiment, the bellows element is provided as a circular bellows. It is understood that bellows with sharp folds can also be provided as flexible bellows element.

[0028] as in figure 2 As can be seen in , the side...

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PUM

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Abstract

The invention relates to a slide ring seal arrangement comprising a rotating slide ring (2) and a stationary slide ring (3) which define a sealing gap (4) between one another; a bellows unit (5) having a bellows element (50), a bellows carrier (51) and a slide ring carrier (52); wherein the bellows element (50) is connected to the bellows carrier (51) and the slide ring carrier (52) in a fluid-tight manner; wherein the bellows unit (5) has a side facing a product (7) and an atmosphere side (8); wherein that side of the bellows unit (5) that is directed towards the product (7) has a non-stick coating (6); wherein the bellows element (50) is a metal bellows; and wherein the slide ring inserted in the slide ring carrier (52) of the bellows unit (5) is inserted loosely.

Description

technical field [0001] The invention relates to a mechanical seal having a coated bellows unit for ensuring the function of the bellows unit. Background technique [0002] Mechanical seals of various designs are known from the prior art. In order to ensure the axial adjustment of the slip ring during operation of the mechanical seal, a bellows element is used which is connected to the slip ring in an axially adjustable manner. A bellows element ensures the axial movability of this slip ring. [0003] However, the mechanical seal must also fulfill a sealing function with respect to media such as hot water or liquid concrete, in which case deposits are generated at the bellows element. Over time, this deposit fills up the bellows folds of the bellows element, impairing the axial movability of the bellows element. This relates in particular to bellows made of metal, since they have relatively hard bellows folds. [0004] Known from DE 102014207188 B4 is a mechanical seal ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/34F16J15/36
CPCF16J15/3468F16J15/363
Inventor A·佩尔J·T·希尔克T·摩勒J·斯科尔泽德罗
Owner EAGLEBURGMANN GERMANY GMBH &CO KG
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