Gas-filled self-expanding type bell examination, repair and seal technology
A technology for repairing sealing and self-expansion, which is applied in the direction of pipes/pipe joints/fittings, mechanical equipment, pipe components, etc., can solve the problems of long maintenance time, backward process, high difficulty, etc., to improve the maintenance speed, improve the safety factor, The effect of enhancing mechanical strength
Active Publication Date: 2009-03-11
ANSHAN IRON & STEEL GROUP CORPORATION
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Problems solved by technology
[0003] ——The present invention overcomes the above-mentioned defects, and the purpose is to change the problems of backward technology, danger, long maintenance time and difficulty, and to improve the efficiency and quality of maintenance, and to provide an inflatable self-expanding socket maintenance and sealing process
Method used
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Embodiment Construction
[0020] The air-inflating self-expanding socket inspection and sealing process of the present invention is realized in this way. The outer rubber surface of the high-pressure rubber hose is expanded and tightened on the functional pipe wall at the pipe connection by using compressed air, and one to two seals are formed at the pipe connection socket. Section, seal the medium leaked at the pipe socket inside, and then use the perfusion sealant or grouting material to perform the perfusion operation. The short-term sealing action time of the high-pressure hose is within the range of 3 to 6 days to ensure that the sealant or grouting material It should be fully cured and achieve long-term sealing strength, which should reach: a. After pouring sealant and grouting material, its bonding strength and tensile strength are all above 10MPa; b. To prevent large-scale flow of colloid or slurry, it is necessary to make Corresponding outer fenders.
[0021] Do concrete explanation below in c...
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The invention relates to an inflation self-expansion typed pipe socket maintenance sealing process which is characterized in that: compressed air is used for expanding the external glue surface of a high pressure glue pipe on an action pipe wall of the pipe connection; the pipeline connecting pipe socket position forms one to two sealing sections; the medium leaked at the pipeline socket is sealed in the pipeline; subsequently, pouring sealing glue or pouring material is used for pouring operation; short-term sealing affect time of the high-pressure glue pipe is ranging from 3 days to 6 days, thus ensuring sufficient solidifying of the sealing glue or pouring material and keeping long-term sealing strength. The process replaces original process of flax, lead fusing and lead pouring. After the inflated air achieves the working pressure, the pipeline can be recovered to run, thereby greatly improving the maintenance speed and greatly improving the maintenance quality and safety performance; simultaneously, the sealing capability and strength of the pipeline socket position are reinforced, the whole anti-deformation rigidity of the pipeline is reinforced, and the safety coefficient of the production running is improved.
Description
technical field [0001] The invention belongs to the technical field of water supply and drainage, and relates to an inspection and sealing process for an inflatable self-expanding socket. Background technique [0002] At present, there are many cast iron or cement pipes in the water supply pipes, because they cannot be welded, so the pipe socket connection method is mostly used. When this connection method leaks, the oilseed is usually drilled first, and then the molten lead is poured. water, but it is rarely possible to ensure no leakage after a round of brazing, so it is often necessary to refill the hemp, which greatly affects the quality of maintenance, and the operation time of this process is very long. In addition, metal lead must be used to seal after brazing, and the melting process not only wastes wood, but also produces toxic fumes such as lead vapor, and, in the specific pouring operation, it is easy to produce dangerous situations such as splashing and explosion...
Claims
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IPC IPC(8): F16L55/175
Inventor 付长虹付志海栗露于利刘乃军
Owner ANSHAN IRON & STEEL GROUP CORPORATION