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Pipe end opening blockage

A technology of occluders and ports, applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of high cost of occlusion maintenance, complicated welding process, redundant and cumbersome workload in the pressing process, etc., to achieve Improve the efficiency of plugging operation, the effect of simple and fast plugging operation

Inactive Publication Date: 2010-08-25
张杰城
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. It is necessary to weld and seal the end plate first, and then cut off the end plate. The workload of the pressing process is redundant and cumbersome, and the efficiency of the sealing operation is low
[0005] 2. The plugging end plate used for each pressing will affect the metallographic structure of the metal after repeated welding. When welding as an end plate again, the weldability cannot be guaranteed, and the sealing performance is unreliable. The plugging end plate cannot Repeated use, high cost of plugging and maintenance
[0006] 3. Welding equipment is needed for the welding process, which has high requirements for welding precision, the welding process is complicated, and the plugging operation is not convenient and fast enough.

Method used

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  • Pipe end opening blockage
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] As shown in Fig. 1, a pipeline port blocker provided by the present invention includes:

[0022] A transmission screw rod 1. The transmission screw rod 1 has a pivot end 11, a threaded section 12 and an operating end 13. The operating end 13 may be provided with a perforation 131 to facilitate the insertion of the pull rod to rotate the transmission screw 1;

[0023] A pressure-bearing head 2 is pivotally connected to the pivot end 11 of the driving screw rod 1. The pressure-bearing head 2 has an inner end surface 21, an outer end surface 23 and a first cylinder portion 22 axially extending from the inner end surface 21; preferably The pivoting end 11 is restricted within the inner end surface 21 of the pressure head 2 to avoid the leakage of high-pressure medium; specifically, a support member can be fixed on the inner end surface 21 of the pressure head 2 located inside the first cylindrical portion 22 25. The supporting member 25 has a supporting end plate 251, the pivota...

Embodiment approach 2

[0035] As shown in Figures 2 and 3, the structure, principle and effect of this embodiment are basically the same as those of Embodiment 1, and will not be repeated. The improvements are:

[0036] The sliding cone surface 41 of the squeeze bowl 4 and the lower surface 51 of the locking slider 5 are provided with a guide structure 9 extending in the axial direction with a concave-convex fit. The guide structure 9 includes the sliding cone surface 41 and all the locking sliders 5 The protruding strip 91 on one of the lower surface 51 and the corresponding groove 92 provided on the other, that is to say, a plurality of protruding strips or grooves need to be provided on the sliding tapered surface 41, and each locking slide Each lower surface of the block 5 is provided with a corresponding groove or protrusion. For example, a protrusion 91 may be provided on the sliding cone 41 of the squeeze bowl 4, and a recess may be provided on the lower surface 51 of each locking slider 5. The ...

Embodiment approach 3

[0040] As shown in Figure 4, this embodiment has the same structure, principle and effect as Embodiment 2, but the differences are:

[0041] The specific form of the support 25 is changed. In this embodiment, the supporting member 25 is not a cylinder, but a U-shaped frame. The U-shaped frame can also be provided with a long supporting end plate 251, and the pivoting end 11 extends through the supporting end plate 251. Into the U frame. Of course, the supporting member 25 in the present invention is not limited to the cylindrical shape in the first embodiment or the U-shaped frame in the present embodiment, any other connecting member, for example, three pillars or four pillars supporting a supporting end plate 251. Such a connecting piece is also possible without limitation, and any support frame that can provide the tensile force of the pressure-bearing head 2 relative to the actuator disk 3 can be adopted.

[0042] The convex strips 91 of the guide structure 9 are not directly...

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Abstract

The invention discloses a pipeline port stopper, which comprises a transmission lead screw, a bearing head, an actuator plate, an extruding bowl, at least two locking sliders and a packer ring, wherein the transmission lead screw is provided with a pin joint end, a threaded section and an operating end; the bearing head is pivoted with the pin joint end of the transmission lead screw; the actuator plate has a threaded hole which is matched with the threaded section of the transmission lead screw; the extruding bowl is arranged slidably between the bearing head and the actuator plate, and has an inclined sliding conical surface and an extruding end face; the locking sliders are linked the actuator plate, the lower surfaces of the locking sliders are axially and slidably matched with the sliding conical surface of the extruding bowl, and the locking sliders are driven by the actuator plate to ascend along the sliding conical surface and are locked in a radial expanding state; and the packer ring is arranged between the bearing head and the actuator plate, and is extruded by the extruding end face of the extruding bowl to be in the radial expanding state so as to realize plugging.

Description

Technical field [0001] The present invention relates to a plugging tool in pipeline maintenance work plugging tools for media such as water, oil and gas, and in particular to a manual pipeline port plugging device that can block and unblock pipeline ports. Background technique [0002] Pipeline transportation is the most economical and reasonable transportation method for oil and gas. At present, my country has formed a number of regional oil and gas pipeline networks, and with the rapid development of the energy industry, my country's oil and gas pipeline construction will continue to make considerable progress. [0003] With the increase of pipeline laying length and service life in our country, it is necessary to conduct pipeline strength and tightness tests on new and old pipelines, that is, pressure test. The traditional pressing process is to weld the blocking plate of the pipe port. After the pressing test is completed, the blocking plate of the pipe port is cut off. This ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/11
Inventor 张杰城
Owner 张杰城
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