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Body part of a slide ring seal, slide ring seal, flow machine with said slide ring seal, and method of fastening said slide ring seal

A technology for fluid machines and mechanical seals, which is applied to the components of pumping devices for elastic fluids, engine seals, machines/engines, etc., and can solve problems such as expensive, complex structure, and complex seal structure.

Active Publication Date: 2006-11-22
SULZER MANAGEMENT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When considering the pump casing or casing cover, prior art slip ring seals additionally require a relatively complex seal structure and at least two holes for the seal's set screws
Such a structure is relatively complex and therefore expensive

Method used

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  • Body part of a slide ring seal, slide ring seal, flow machine with said slide ring seal, and method of fastening said slide ring seal
  • Body part of a slide ring seal, slide ring seal, flow machine with said slide ring seal, and method of fastening said slide ring seal
  • Body part of a slide ring seal, slide ring seal, flow machine with said slide ring seal, and method of fastening said slide ring seal

Examples

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Embodiment Construction

[0010] FIG. 1 shows a prior art construction of a sliding ring seal of a centrifugal pump, by means of which the pumping space 12 in the region of the impeller 10 of the centrifugal pump is separated from the shaft space 14 of the pump. The pumping space refers to basically all spaces in open communication with the impeller 10 . In other words, the pumping space 12 covers the area in front and behind the impeller 10 . Likewise, the shaft space 14 refers precisely to the space directly communicating with the shaft of the pump. Here, the shaft space 14 is located between the slide ring seal and the shaft 18 . The seal structure also of course prevents the fluid to be pumped from leaking from the pumping space into the atmosphere between the casing 16 and the seal. In the configuration shown schematically in FIG. 1, the mechanical seal comprises: a rotating slip ring unit 24 positioned on the shaft 18 between the shoulder 20 of the shaft and the impeller 10; a non-rotating slip...

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Abstract

The present invention relates to a new kind of a mechanical seal, a so called slide ring seal, which is used, for example, for sealing a shaft space of a centrifugal pump in relation to a pumping space thereof. The present invention especially relates both to centering said mechanical seal and / or fastening said mechanical seal to the casing of said centrifugal pump and a body part used for the attachment. A characterizing feature of a mechanical seal in accordance with the present invention, comprising at least one rotary slide ring unit (24, 24', 24''), a body part by means of which said seal is attached to said casing (16), and at least one either separate counter ring unit (42, 42') or a counter ring unit (42, 42') stationarily attached to said body part, is that said body part (40, 40') is provided with inclined fastening means (52), by means of which the body part (40, 40') is tightened to the casing both axially and radially.

Description

technical field [0001] The present invention relates to a new type of mechanical seal, a so-called slide ring seal, for example for sealing the shaft space of a centrifugal pump with respect to its pumping space. In particular, the invention relates to the fixing of said mechanical seal on the casing or casing cover of a fluid machine, the fluid machine itself and the body part of said slide ring seal, and the fixing of said slide ring seal on said fluid machine. method on the machine. Background technique [0002] Hereinafter fluid machines refer to centrifugal pumps, but it should be borne in mind that the term fluid machines in the present invention refers to all fluid treatment equipment having a rotating shaft which is sealed such that the fluid to be treated cannot flow out of the equipment along the axis . The prior art introduces, for example, sliding ring seals, as shown in FIG. 1 , wherein a sliding ring seal used as a shaft seal of a pump is usually fixed on the...

Claims

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Application Information

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IPC IPC(8): F16J15/16F04D29/12F04D29/42F16J15/34
CPCF16J15/3464F04D29/10F16J15/16
Inventor H·曼尼宁
Owner SULZER MANAGEMENT AG
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