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Sealing property testing device for PCCP (prestressed concrete cylinder pipe) pipeline connector

A technology for pipe joints and test devices, which is applied in the direction of using liquid/vacuum for liquid tightness measurement, etc., can solve problems such as the influence of installation accuracy and test result error, so as to reduce labor and time consumption, simplify test equipment, and improve The effect of test accuracy

Inactive Publication Date: 2012-12-26
BEIJING HANJIANHESHAN PIPELINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it consumes a lot of manpower and time, and the installation accuracy is affected by human factors, which brings large errors to the test results.

Method used

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  • Sealing property testing device for PCCP (prestressed concrete cylinder pipe) pipeline connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] During the test, first put the socket plate (5) on the base (8) of the pressure testing machine; paint the water-stop rubber ring (9) prepared in advance and put it into the socket groove of the socket plate (5). , cover the socket plate (6) to ensure that it is stable and does not slide relatively; adjust the workbench (10) of the pressure testing machine so that the workbench (10) of the pressure testing machine is in contact with the socket plate (6); 1) Pour water into the water storage tank of the socket plate (5), wait for the water to flow out from the water channel in the socket plate (6), and use the plugging bolt (7) to stop the water.

[0009] Use a vernier caliper to measure the gap between the socket plate (5) and the socket plate (6), use the pressure pump (1) to pressurize until there is a water leakage point, record the value of the pressure gauge (2), and open the plugging bolt ( 7) Release the pressure, raise the working table (10) of the pressure test...

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PUM

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Abstract

The invention relates to a device for testing a sealing property of a waterstop rubber ring, and particularly relates to the device which can simulate the sealing property of the waterstop rubber ring of a PCCP (prestressed concrete cylinder pipe) pipeline connector. The device comprises a pressurizing pump (1), a pressure gage (2), a flow guide pipe (3), a pressurizing nozzle (4), a socket disc (5), a bellmouth disc (6) and a sealing bolt (7). With the adoption of the device, a compression deformation situation of the rubber ring and a waterstop ability of the connector can be reflected truly at different installation gaps during an installation process of the PCCP pipeline connector; testing equipment is simple; consumption on labor and time is reduced; testing precision is improved; and a test result is more real and effective.

Description

technical field [0001] The invention relates to a test device for the sealing performance of a water-stop rubber ring, in particular, it can simulate the sealing performance test of the water-stop rubber ring of a PCCP pipe joint. Background technique [0002] In the PCCP pipe joint test model, how to simulate the working condition of the PCCP pipe joint water stop rubber ring is an important issue. The actual PCCP pipe joints are made of steel socket and socket joints. The socket is a special section steel with grooves. The rubber ring is filled in the groove according to the design of the cross section of the rubber groove. After installation, the rubber ring is squeezed in both directions to form a seal. force to withstand high water pressure. Usually, in the sealing test of the rubber ring of the PCCP pipe joint, the actual pipe is used for the butt test, and the required value of the test is obtained by changing the diameter of the rubber ring. The disadvantage is tha...

Claims

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Application Information

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IPC IPC(8): G01M3/02
Inventor 刘江宁孙凤昌
Owner BEIJING HANJIANHESHAN PIPELINE CO LTD
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