Sealing rings of Hafu joint
A sealing ring and half joint technology, which is applied in the field of pipeline repair, can solve the problems of half joint seal failure, poor high pressure resistance and water hammer resistance, and flushing out.
Active Publication Date: 2010-06-23
ANHUI TONGFA EQUIP CO LTD
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Problems solved by technology
However, the existing half joint gaskets have poor high pressure resistance and water hammer resistance, and are prone to local rollover and high pressure fluid rushing out accidents, resulting in the failure of the half joint seal, so it is urgent to improve
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[0016] Such as Figure 1~5 As shown, a Huff joint includes two oppositely installed housings 30, and both sides of the housing 30 along the axial direction are provided with outwardly extending flanges 31, and the two flanges 31 are The occlusal teeth 311 and the occlusal bed 312 are respectively provided, and the two shells 30 are connected together by the occlusal teeth 311 and the occlusal beds 312 interlocking.
[0017] The shapes of the two housings 30 are the same, that is, each housing 30 is provided with two flanges 31, one flange 31 is provided with occlusal teeth 311, and the other flange 31 is provided with an occlusal bed 312, such as figure 2 , 4 , 5 shown. During construction and installation, the two housings 30 are installed opposite to each other, and the occlusal teeth 311 of one housing 30 are engaged with the occlusal bed 312 of the other housing 30, and then the bolts are sequentially passed through the two housings 30 opposite to each other. Flange e...
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The invention belongs to the technical field of emergency repair of a pipeline, which in particular relates to sealing rings of a Hafu joint. The sealing rings of the Hafu joint comprise sealing rings arranged at both sides, wherein a first sealing strip and a second sealing strip are arranged between the sealing rings, the end parts of the first sealing strip and the second sealing strip are connected with each other, and the position of the first sealing strip after the first sealing strip is symmetrical along the central axis of the sealing rings is opposite to the position of the second sealing strip. The position of the first sealing strip after the first sealing strip is symmetrical along the central axis of the sealing rings is opposite to the position of the second sealing strip, i.e. the central axes of the first sealing strip and the second sealing strip about the sealing rings are not symmetrical. By the arrangement mode of the sealing rings of the Hafu joint, the first sealing strip and the second sealing strip are incompletely abutted together or are not abutted together when the first sealing strip and the second sealing strip are oppositely installed, and the sealing effect of the sealing strips is realized by the structure matching of the sealing strips and the casings of the Hafu joint, thereby enhancing high-pressure resistance performance and water hammer resistance performance of the Hafu joint greatly and ensuring sealing property of the Hafu joint by the matching of the casings and the sealing strips.
Description
technical field [0001] The invention belongs to the technical field of pipeline emergency repair, and in particular relates to a half joint sealing ring. Background technique [0002] Water pipes, gas pipes, steam pipes, and petrochemical pipelines are widely used in production and life. These pipes may leak or be damaged due to improper maintenance, geological subsidence, and external impact. When repairs are required, Ha Seal and wrap the leakage or damage of the pipeline. [0003] The structure of the existing Huff joint includes oppositely installed shells and gaskets arranged on the shells. The structure of the gaskets is symmetrically distributed with respect to the central axis of the shells. When installed, the gaskets on the two shells are opposed to each other. together for improved sealing performance. However, the existing half joint gaskets have poor high pressure resistance and water hammer resistance, and are prone to partial rollover and high pressure fluid...
Claims
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IPC IPC(8): F16L55/17F16J15/06
Inventor 焦发兆
Owner ANHUI TONGFA EQUIP CO LTD