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Single type universal hinge type expanding joint with thickness and crack detecting device

A crack detection and detection device technology, applied in the field of pipeline expansion joints, can solve the problems of heavy maintenance and replacement, short service life of expansion joints, economical personal injury, etc., achieve low manufacturing costs, enhance overall performance, and improve safety Effects on Sex and Reliability

Inactive Publication Date: 2019-03-26
JIANGSU HENGFENG BELLOWS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pipe is stretched or contracted due to thermal expansion and cold contraction, the bellows will be stretched or compressed, plus the pressure on the inner wall of the bellows. During long-term use, due to the large expansion and contraction of the heating pipe, the The number of waves of the pipe is large, and the bellows of the expansion joint are prone to leakage due to fatigue. Once the internal pressure bellows expansion joint leaks, the entire expansion joint will fail
Therefore, regular maintenance or replacement of pipeline expansion joints is required, resulting in a short service life of the expansion joints, a large workload for maintenance and replacement, and high costs
Sometimes due to failure to detect leaks and failed expansion joints in time, it may even lead to production safety accidents, resulting in serious personal injury and economic losses

Method used

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  • Single type universal hinge type expanding joint with thickness and crack detecting device
  • Single type universal hinge type expanding joint with thickness and crack detecting device

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:

[0017] Such as figure 1 and figure 2 As shown, the single-type universal hinge expansion joint equipped with thickness and crack detection devices includes an expansion joint body, a detection device and a control device. 11. A detection device is provided on the bellows 9; the detection device includes a thickness and crack detection device 10, and the control device includes a signal transmission device, a data processing device and a data terminal; the detection device is electrically connected to the power supply and the signal transmission device respectively, and the signal The transmission device is electrically connected to the data processing device by wire or wirelessly, and the data processing device is electrically connected to the data terminal.

[0018] In this embodiment, the outer surface of the left connecting pipe 1 is provided w...

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Abstract

The invention relates to a single type universal hinge type expanding joint with a thickness and crack detecting device. An expanding joint body, a detecting device and a control device are included;the expanding joint body comprises a left connection pipe, a corrugated pipe and a right connection pipe which are sequentially connected; the corrugated pipe is provided with the detecting device; the detecting device comprises the thickness and crack detecting device; the control device comprises a signal transmission device, a data processing device and a data terminal; the detecting device iselectrically connected with a power source and the signal transmission device; the signal transmission device is electrically connected with the data processing device in a wired or wireless manner; and the data processing device is electrically connected with the data terminal. According to the single type universal hinge type expanding joint with the thickness and crack detecting device, variousdata of the expanding joint are acquired through the detecting device, are sent to the mobile phone of related personnel after processing, and can be looked over any time, and an alarm is given out during leaking of the expanding joint. The single type universal hinge type expanding joint with the thickness and crack detecting device facilitates optimizing the product design, can accurately predict the maintaining, overhauling and replacing time of the expanding joint, and achieves intelligent detecting and monitoring.

Description

technical field [0001] The invention relates to the technical field of pipeline expansion joints, in particular to a single universal hinge type expansion joint provided with thickness and crack detection devices. Background technique [0002] Pipeline compensators are also called expansion joints. They are installed in sections of heating pipelines or gas pipelines to compensate for expansion and contraction of pipelines, especially for long-distance heating pipelines that transport high-temperature and high-pressure media. The wall thickness of expansion joints is relatively thick. Large, high strength, absorbing more axial displacement of the pipeline. Therefore, the reliability requirements for pipeline expansion joints are relatively high. [0003] At present, most of the commonly used bellows expansion joints work in the internal pressure type. After the medium is passed into the pipeline, the medium will enter the inner cavity of the bellows, that is, the inner wall...

Claims

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Application Information

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IPC IPC(8): F16L51/02F17D5/06F17D5/00
CPCF16L51/02F17D5/00F17D5/06
Inventor 吉慧萍
Owner JIANGSU HENGFENG BELLOWS
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