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Method and device for testing the sealing performance of double-end dry gas seals of centrifugal compressors

A centrifugal compressor and dry gas sealing technology, which is applied to parts, mechanical equipment, machines/engines, etc. of pumping devices for elastic fluids, and can solve problems such as no effective detection means

Active Publication Date: 2020-03-31
SHENYANG BLOWER WORKS GROUP CORP
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Problems solved by technology

[0005] In view of this, this application provides a method and device for detecting the sealing performance of the double-end dry gas seal of the centrifugal compressor. Sealing performance, there is no effective detection method at present

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  • Method and device for testing the sealing performance of double-end dry gas seals of centrifugal compressors
  • Method and device for testing the sealing performance of double-end dry gas seals of centrifugal compressors
  • Method and device for testing the sealing performance of double-end dry gas seals of centrifugal compressors

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] Aiming at the problem that there is no effective detection method for the overall gas sealing performance of the centrifugal compressor unit after the double-end dry gas seal is assembled with the centrifugal compressor, this embodiment provides a double-end dry gas seal for the centrifugal compressor. The sealing performance testing method of the seal is combined with the static gas for dry gas sealing performance testing to...

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Abstract

This application discloses a method and device for detecting the sealing performance of the double-end dry gas seal of a centrifugal compressor, which relates to the technical field of centrifugal compressors. After the double-end dry gas seal is assembled with the centrifugal compressor, the overall Gas sealing performance testing. The method includes: after the double-end dry gas seal is assembled with the centrifugal compressor, filling the sealing gas area of ​​the dry gas seal with sealing gas and filling the isolation gas area with isolation gas, and making the pressure of the isolation gas and the pressure of the sealing gas Meet the pressure standard for the normal operation of the double-end dry gas seal of the centrifugal compressor; by monitoring the pipeline pressure and intake air volume of the seal gas area and the isolation gas area respectively, combined with the exhaust volume of the double-end dry gas seal, determine the centrifugal compressor. The sealing performance of the double-face dry gas seal of the compressor. This application is applicable to the sealing performance detection of the double-end dry gas seal of the centrifugal compressor.

Description

technical field [0001] The present application relates to the technical field of centrifugal compressors, in particular to a method and device for detecting the sealing performance of dry gas seals on both ends of centrifugal compressors. Background technique [0002] Centrifugal compressor is an important strategic equipment, which is widely used in chemical processes such as oil refining, fertilizer, refrigeration, liquefied natural gas (LNG) and so on. Common working media are: ammonia, propylene, natural gas, petroleum-rich gas, carbon monoxide, methanol, ethylene, hydrogen, etc., many of which are flammable, explosive, toxic, and harmful. [0003] In order to ensure the safety of the centrifugal compressor, a double-face dry gas seal is commonly used as the shaft end seal to ensure that the working medium of the unit will not leak outside the unit, so as to avoid potential safety hazards and environmental pollution. This kind of seal is used as a shaft end seal to prev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F04D29/00F04D29/08
CPCF04D27/001F04D29/002F04D29/083
Inventor 亢天明汪创华孙家姝陈久国
Owner SHENYANG BLOWER WORKS GROUP CORP
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