Maintenance-free self-regulation compensator
A self-adjusting, maintenance-free technology, applied to expansion compensation devices for pipelines, pipes/pipe joints/pipes, mechanical equipment, etc. The leakage of the bellows of the device can achieve the effect of low maintenance cost, long service life and enhanced sealing performance.
Inactive Publication Date: 2013-06-05
吉慧萍
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Problems solved by technology
During use, due to the large amount of expansion and contraction produced by the heating pipeline, the wave number of the compensator bellows is large, and the bellows of the compensator are prone to local leakage due to fatigue. Therefore, regular maintenance or replacement of the compensator is required, resulting in the life of the compensator. Shorter, more maintenance and replacement work, higher cost
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[0014] like figure 1 and figure 2 As shown, the maintenance-free self-adjusting compensator includes a connecting pipe 1, a guide cylinder 2, an outer sheath 7, a bellows 6 and a long connecting pipe 13, the inner surface of the connecting pipe 1 is connected with the guide cylinder 2, and the outer surface of the connecting pipe 1 The surface is fixedly connected with the outer sheath 7 through the ring plate 3, the bellows 6 is sleeved between the outer sheath 7 and the long connecting pipe 13 and connected with the outer sheath 7 and the long connecting pipe 13 respectively, and the guide tube 2 extends into the long connecting pipe 13, one end of the bellows 6 is fixedly connected to the guide plate 4 through the end ring 5, the guide plate 4 is fixedly connected to the end of the long connecting pipe 13 close to the connecting pipe 1, and the other end of the bellows 6 is connected to the outer sheath through the end plate 9 The inner surface of 7 is fixedly connected, ...
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The invention relates to a maintenance-free self-regulation compensator which comprises a connecting pipe, a guide cylinder, an outer sheath, a corrugated pipe and a long connecting pipe. The corrugated pipe is connected with the inner surface of the outer sheath, an end plate is connected with a sealing packing device, the device comprises a guide ring, a sealing ring and a pressure plate I, the guide ring is fixedly connected with the end plate, the sealing ring is arranged in a sealing cavity formed by the guide ring and the long connecting pipe, a bolt with a nut is arranged between the pressure plate I and the end plate, a spring is arranged between the nut and the pressure plate I, a convex ring is arranged at a position, which is in contact with the sealing ring, on the pressure plate I, a guide nozzle is arranged at the convex ring, and the pressure plate enables the convex ring to compress the sealing ring via the bolt and the spring. The maintenance-free self-regulation compensator has the advantages that owing to a spring and bolt sealing structure capable of automatically regulating the sealing pressure, the self-regulation sealing structure of the compensator can effectively block media even if the corrugated pipe leaks due to fatigue in a usage procedure, so that leakage of the integral compensator is prevented; and sealing packing can be injected via the guide nozzle, the sealing performance of the compensator is strengthened, and accordingly the compensator is maintenance-free.
Description
technical field [0001] The invention relates to a pipeline telescopic expansion compensation device, in particular to a maintenance-free self-adjusting compensator which adopts bellows and spring bolts to automatically adjust sealing pressure. Background technique [0002] At present, it is necessary to install several compensators in sections to compensate for the expansion and contraction of the existing heating pipelines, especially for long-distance heating pipelines buried underground for transporting high-temperature and high-pressure media, and the wall thickness of the compensators is relatively large. , Higher strength. During use, due to the large amount of expansion and contraction produced by the heating pipeline, the wave number of the compensator bellows is large, and the bellows of the compensator are prone to local leakage due to fatigue. Therefore, regular maintenance or replacement of the compensator is required, resulting in the life of the compensator. S...
Claims
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IPC IPC(8): F16L51/02
Inventor 吉慧萍蒋峰梅桂林蒋爱琴
Owner 吉慧萍