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Tee pressure-testing device and method for pipeline punching and pipeline plugging

A pipe and tee technology, which is applied in the field of tee pressure test devices for pipe opening and plugging, can solve the problems of heavy welding workload, affecting the quality of tee, waste of materials, etc., and achieves convenient operation, improved efficiency, and overall machine compact effect

Active Publication Date: 2013-06-05
TIANJIN LVQING PIPELINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the pressure test of the tee for opening and plugging is to weld the two ends of the tee to the head, and install the water inlet pipe and pressure gauge on the head of one end, and then weld the two ends after the pressure test. The disadvantages of cutting off the head are: 1) Customized non-standard heads, the material waste is serious; 2) Welding regenerates welding stress on the heat-treated elbow, which affects the quality of the tee; 3) The welding workload is large and the efficiency is low. Low

Method used

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  • Tee pressure-testing device and method for pipeline punching and pipeline plugging
  • Tee pressure-testing device and method for pipeline punching and pipeline plugging

Examples

Experimental program
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Effect test

Embodiment 1

[0022] like figure 1 As shown, the pipe opening and plugging of the present embodiment use a three-way pressure test device, including a pressure test system, a hydraulic system, a fixed plug 3, a movable plug 4 and a structural frame 1; The moving plug, the hydraulic system is connected to the moving plug 4; the fixed plug 3 is provided with the water inlet channel 3-1, and the pressure test line 9-1 of the pressure test system is connected to the The water inlet channel 3-1 is connected. The structural frame 1 includes a beam 1-1, a first end plate 1-2 and a second end plate 1-3, and the two ends of the beam 1-1 are respectively connected to the first end plate 1-2 and the The second end plate 1-3 is welded or hinged; the fixed plug 3 is connected to the first end plate 1-2 and is located between the first end plate 1-2 and the second end plate 1-3 between; the hydraulic system includes a trolley 2, a hydraulic station 6 and a hydraulic cylinder 5 communicating with the hy...

Embodiment 2

[0028] like figure 2 As shown, the main difference between the pipe opening and plugging of the present embodiment and the three-way pressure test device of embodiment 1 is that the two plugs are removable movable plugs 4; it includes: a pressure test system (with Embodiment 1 is the same, not shown in the figure), hydraulic system, two movable plugs 4 and structural frame 1; the hydraulic system is connected with the movable plug 4; one of the movable plugs 4 is provided with the water inlet channel 3-1 (same as embodiment 1, not shown in the figure), and the pressure test line 9-1 of the pressure test system (same as embodiment 1, not shown in the figure) ) communicates with the water inlet channel 3-1. The structural frame 1 includes a beam 1-1, a first end plate 1-2 and a second end plate 1-3, and the two ends of the beam 1-1 are respectively connected to the first end plate 1-2 and the The second end plate 1-3 is welded or hinged; the hydraulic system includes a hydrau...

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Abstract

The invention discloses a tee pressure-testing device and a tee pressure-testing method for pipeline punching and pipeline plugging. The device comprises a pressure-testing system, two plugs and a plug-driving system, wherein at least one of the plugs can be a moveable plug; the plug-driving system is in driving connection with the moveable plug; a water inlet passage is arranged on at least one of the plugs; and a pressure-testing line of the pressure-testing system is communicated with the water inlet passage. By the device, the material is saved, the pressure-testing efficiency is high, and the plugs and the openings of the tee for the pipeline punching and the pipeline plugging are not required to be welded.

Description

technical field [0001] The invention relates to a pipeline pressure test device and a pipeline pressure test method, in particular to a pipeline opening and sealing tee pressure testing device and a pressure testing method for pipeline opening and sealing tee pressure testing. Background technique [0002] In the prior art, the pressure test of the tee for opening and plugging is to weld the two ends of the tee to the head, and install the water inlet pipe and pressure gauge on the head of one end, and then weld the two ends after the pressure test. The disadvantages of cutting off the head are: 1) Customized non-standard heads, the material waste is serious; 2) Welding regenerates welding stress on the heat-treated elbow, which affects the quality of the tee; 3) The welding workload is large and the efficiency is low. Low. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a pipe opening and s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/04
Inventor 石建忠
Owner TIANJIN LVQING PIPELINE TECH CO LTD