External plugging device for pipeline purging
A technology for occluders and the outer wall of pipelines, which is applied in the direction of pipe components, sealing surface connections, pipes/pipe joints/pipe fittings, etc., which can solve the problems of time-consuming, laborious and high cost, and achieve the effect of convenient operation and cost saving
Pending Publication Date: 2021-11-09
河北越启恒橡塑制品有限公司
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Problems solved by technology
[0003] The embodiment of the present invention provides an external occluder for pipeline purging, which aims to solve the technical problems of time-consuming, labor-intensive and high-cost purge operations inside the pipeline
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[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] It should be noted that the terms "length", "width", "height", "thickness", "top", "bottom", "front", "back", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed a...
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The invention provides an external plugging device for pipeline purging. The external plugging device comprises a valve connecting piece, a driving sleeve, a clamping mechanism, a rear abutting piece, a sealing ring and a sealing driving assembly. The valve connecting piece is used for mounting a valve; the driving sleeve is connected between the outer wall of a pipeline and a sleeve in the radial direction of the pipeline in a sleeved manner and can slide in the axial direction of the pipeline; the clamping mechanism comprises a plurality of clamping blocks arranged around the periphery of the pipeline and a plurality of clamping rings which are used for being connected to the outer wall of the pipeline in a sleeving manner and tend to be elastically opened towards the outer side in the radial direction of the pipeline; the rear abutting piece is connected to the periphery of the pipeline in a sleeving manner and can slide in the axial direction of the pipeline; the sealing ring is located between the driving sleeve and the rear abutting piece in the axial direction of the pipeline; and the sealing driving assembly enables the driving sleeve to drive the clamping mechanism to be clamped and fixed to the periphery of the pipeline and enables the sealing ring to deform in the radial direction so as to seal the sleeve. The external plugging device for pipeline purging aims at solving the technical problems that time and labor are wasted and cost is high when purging operation is conducted on the interior of the pipeline.
Description
technical field [0001] The invention belongs to the technical field of pipeline occluders, in particular to an external occluder for pipeline purging. Background technique [0002] After the welding of the pipeline is completed, the interior of the pipeline should be purged (blasting and purging). During the specific purging operation, flanges should be welded at both ends of the pipeline, and butterfly valves should be installed on the flanges, and then high-pressure gas should be filled into the pipeline, and the high-pressure gas should be released by opening the butterfly valve to realize blasting and purging in the pipeline. After the purging is completed, the pipeline needs to be restored, so the purging operation requires welding and removal of flanges, which results in time-consuming and labor-intensive operations and very high costs. Contents of the invention [0003] An embodiment of the present invention provides an external occluder for pipeline purging, which...
Claims
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IPC IPC(8): F16L19/065F16L19/07F16L55/07
CPCF16L19/005F16L19/062F16L19/065F16L19/07F16L55/07
Inventor 胡月胡承启
Owner 河北越启恒橡塑制品有限公司