Single-seal maintenance-free compensator
A maintenance-free, compensator technology, which is applied to the expansion compensation device for pipelines, closures, pipes/pipe joints/fittings, etc., which can solve the problems of high cost, short service life of compensators, inconvenient manufacturing and installation, etc. Long service life, good sealing effect and convenient installation
Inactive Publication Date: 2013-06-05
JIANGSU HENGFENG BELLOWS
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Problems solved by technology
[0003] The three-dimensional pipeline compensators installed in existing power plants and cement plants are generally designed for flue gas or pulverized coal pipelines. The structure of the three-dimensional pipeline compensator is relatively complicated, and it is inconvenient to manufacture and install. Leakage is prone to occur in five to five years, and the compensator must be replaced, resulting in a short service life of the compensator, a large workload for maintenance and replacement, and high costs
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[0015] Such as figure 1 As shown, the single-seal maintenance-free compensator includes casing I1 and casing II8 which are independent of each other and have the same diameter. The outer surface of the end of casing I1 is provided with end ring I7, and the outer surface of casing II8 is provided with end The ring II9, the sleeve I1 and the sleeve II8 are connected to each other through the outer shell 4, the end ring I7 and the end ring II9, and there is a gap between the sleeve I1 and the sleeve II8, so that the sleeve I1 and the sleeve II8 can be mutually Bending movement or mutual rotation, the outer shell 4 is sleeved on the outer surfaces of the end ring I7 and the end ring II9, the surfaces of the end ring I7 and the end ring II9 are respectively provided with at least two grooves, and the grooves are respectively provided with There are O-rings with different diameters, and the two ends of the outer shell 4 are respectively provided with fixing rings 2 , and the fixing ...
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The invention relates to a single-seal maintenance-free compensator which comprises a casing I and a casing II sleeved to each other. End rings I and II are arranged at the ends of the casings I and II respectively. An outer shell is sleeved to the outer surfaces of the end rings I and II. The surfaces of the end rings I and I are provided with at least two grooves respectively. O-shaped seal rings unequal in diameter are arranged in the grooves respectively. Fixed rings are arranged at two ends of the outer shell respectively and are fixedly connected with the outer shell through bolts. Compared with the prior art, the pipeline compensator is composed of the outer shell, the end rings, the fixed rings and at least two unequal-diameter O-shaped seal rings. The compensator is large in deflection angle displacement and axial displacement and is capable of effectively compensating displacement of pipeline equipment in operation. The single-seal maintenance-free compensator is effective in sealing, basically needs no maintenance in lifetime of a pipeline, and is convenient to manufacture and install and long in service life.
Description
technical field [0001] The invention relates to a pipeline compensation device, in particular to a single-seal maintenance-free compensator which can realize mutual bending motion and mutual rotation between pipelines. Background technique [0002] At present, industries such as electric power, building materials, and heat generally need to install and use three-dimensional pipeline compensators in pipelines. Three-dimensional pipeline compensators are usually composed of two spherical devices and a sleeve device. The spherical device can make radial angular displacement. The sleeve device can make axial linear displacement, and the three-dimensional pipe compensator has a large deflection angle and large axial displacement, which can effectively compensate and absorb the large displacement generated by boilers and other equipment during operation. [0003] The three-dimensional pipeline compensators installed in existing power plants and cement plants are generally designed...
Claims
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IPC IPC(8): F16L51/00B65D59/00
Inventor 蒋峰吉慧萍梅桂林蒋爱琴
Owner JIANGSU HENGFENG BELLOWS