Temporary plugging device and method suitable for pipelines of different diameters
A technology for plugging devices and pipelines, which is applied in pipeline protection, pipeline anti-corrosion/anti-rust protection, and pipe components. High construction efficiency and convenient disassembly
Inactive Publication Date: 2018-06-22
MCC TIANGONG GROUP
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Problems solved by technology
This method has the following disadvantages: 1, the blind plate may cause damage to the nozzle during welding and cutting; 2, the recycling rate of the blind plate is low; 3, it takes a lot of time, and it is necessary to carry a welding machine, Generators and other equipment to the site, the operation process is cumbersome and inefficient
4. In the process of welding and sealing, poor sealing often occurs
Method used
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Embodiment Construction
[0021] Such as figure 1 with Picture 1-1 Shown: A temporary plugging device suitable for pipes with different diameters, including threaded screw, circular plugging cover, fixed sleeve, three main support rods and three secondary support rods. The top of the threaded screw is a concave inner hexagon for carrying and installation and disassembly, and the rest of the positions are all threaded; the circular sealing cover plate is welded by 3mm ordinary steel plate, and the outer part of the circular ring is welded. The diameter is the same as the outer diameter of the larger pipeline to be blocked; the fixed sleeve is made of seamless steel pipe, and its inner diameter is larger than the outer diameter of the threaded screw.
[0022] The threaded lead screw passes through the center of the circular blocking cover plate and is fixed by the blocking nut, and the gap between the blocking nut and the blocking cover plate is sealed with sealant. The plugging nut is used for the th...
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A temporary plugging device suitable for pipelines of different diameters comprises a threaded lead screw, an annular plugging cover plate, a fixed sleeve, three main supporting rods and three secondary supporting rods. The threaded lead screw penetrates the circle center of the annular plugging cover plate and is fixed through a plugging nut, and the plugging nut and one end of the fixed sleeve are fixed. Three hinge blocks are evenly and fixedly mounted at the other end of the fixed sleeve in the circumferential direction, and the fixed sleeve is hinged to one end of each of the three secondary supporting rods through the three hinge blocks. The other ends of the three secondary supporting rods are hinged to the three main supporting rods, and the top ends of the three main supporting rods are hinged to the threaded lead screw through the three hinge blocks mounted on the threaded lead screw correspondingly. Sliding blocks are mounted at the tail ends of the three main supporting rods. By means of the temporary plugging device, pipe openings of different pipe diameters within a certain range can be temporarily plugged, good plugging sealing performance is achieved, and cyclic utilization can be achieved; and the pipelines cannot be damaged, and construction cost is reduced.
Description
technical field [0001] The invention belongs to the field of pipeline welding and product protection, and in particular relates to a temporary sealing device and a sealing method suitable for pipelines with different diameters. Background technique [0002] During engineering construction, the pipelines piled up on the construction site are placed in the open air. If they are not temporarily blocked, the inner wall of the pipeline without anti-corrosion treatment will be severely corroded due to various natural environmental factors, and a certain degree of damage will be caused to the pipeline. Natural pollution will have a serious impact on future construction. [0003] At present, the temporary sealing of pipelines mainly adopts the blind plate sealing method. Blind plate plugging is to weld a steel plate at the nozzle that needs to be plugged for the purpose of temporary plugging. This method has the following disadvantages: 1, the blind plate may cause damage to the n...
Claims
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Login to View More IPC IPC(8): F16L55/115F16L58/00
CPCF16L55/1152F16L58/00
Inventor 贾海涛吴广成
Owner MCC TIANGONG GROUP