A lead screw type rapid repair fixture and a method for repairing pipelines using it
A screw-type, fixture technology, applied in the direction of pipe components, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve the problems that it is difficult to ensure the clamping force of the seals, the chain cannot be continuously adjusted, and the requirements for the working space are high. Convenient construction, enlarged clamping force, easy and fast operation
Active Publication Date: 2016-04-06
BEIJING GAS GRP
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AI Technical Summary
Problems solved by technology
However, since the chain cannot be adjusted continuously, it is difficult to ensure the clamping force on the seal
[0004] The mechanical blockage emergency treatment technology has the following advantages: 1. No need to reduce the pressure, and does not affect the user's gas supply; 2. The hot work is controllable and improves the safety factor; but it also has the following disadvantages: 1. The operation time is long; 2. , higher requirements for working space; 3, higher labor intensity
In the case of minor leaks in the general gas operation process, the cost of using this technology is relatively high, and the construction time is relatively long
Method used
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Embodiment 2
[0051] like figure 2 As shown, the difference between the present embodiment 2 and the embodiment 1 is that a repair method of a lead screw type fast repair fixture is characterized in that it includes the following steps:
[0052] A. Place the middle part of the plugging plate 3 on the leakage of the pipeline 1;
[0053] B. Connect the two sets of fixtures 2 with the plugging plate 3 at the same side of the leakage of the pipeline 1;
[0054] C, utilize the sprocket wheel 221 to fix the two ends of the chain 4, and the chain 4 fixes the leak-stopping plate through the chain groove of the leak-stopping plate 3;
[0055] D. Tighten the screw rod 21 to raise the lifting plate 22, thereby tightening the plugging plate 3;
[0056] E. Weld with the pipeline 1 along the outer edge of the leak plugging plate 3 that is not blocked by the fixture 2;
[0057] F. Remove the fixture 2, and weld the outer edge of the plugging plate 3 blocked by the fixture 2 to the pipe 1.
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The invention discloses a screw rod type rapid first-aid repair fixture and a method for carrying out first-aid repair on a pipeline by the same and relates to a fixture, in particular to a chain-type clasping fixture for plugging the pipeline and a method for carrying out first-aid repair on the pipeline by the same. The invention aims to provide the screw rod type rapid first-aid repair fixture, which has a simple structure, is low in cost, is simple and convenient to operate, has strong adaptability to the environment and is convenient to install, and the first-aid repair method thereof. The screw rod type rapid first-aid repair fixture disclosed by the invention comprises a screw (21), a lifting plate (22), chain wheels (221), a guide rail (23), an upper cross frame (231), a lower cross frame (232) and a base; the upper cross frame (231) and the lower cross frame (232) are rotatably connected with both upper and lower ends of the screw (21); the screw (21) is in threaded connection with the middle part of the lifting plate (22); the lifting plate (22) fix both ends of a chain (4) by the chain wheels (221).
Description
technical field [0001] The invention relates to a clamp, in particular to a chain clamp used for sealing pipelines and a method for repairing pipelines using the same. Background technique [0002] At present, there are several kinds of leak plugging clamps for emergency repair of pipelines, such as steel belt clamps, which have the advantage of simple operation, but cannot be welded with open flames, and cannot guarantee permanent sealing. At the same time, the seal does not have a pressure relief structure, and lateral leakage may occur during installation and affect the operation. In addition, the seal is only clamped by a steel belt, and the force is not uniform. It has high requirements on the surface condition of the pipeline, and has poor adaptability to the environment. It is suitable for plugging under low pressure. [0003] The chain clamp is a device that clamps the leak plugging plate on the pipeline through a chain. Its advantages are light equipment, simple in...
Claims
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IPC IPC(8): F16L55/17
CPCF16L55/17
Inventor 高顺利李夏喜吴国荣赵欣廖如超石志强秦臻晋铁汉
Owner BEIJING GAS GRP