Drainage pipeline sealing performance test structure and sealing performance test method

Abstract

The invention provides a drainage pipeline sealing performance test structure applied to the technical field of drainage pipelines, and further designs a drainage pipeline sealing performance test method, and one inspection well (3) is connected between every two adjacent sections of pipeline assemblies (2) of the drainage pipeline sealing performance test structure. A rubber air bag plug I (6) isarranged at the outer end of the pipeline assembly (2) at one end of the pipeline body (1), a rubber air bag plug II (7) is arranged at the outer end of the pipeline assembly (2) at the other end ofthe pipeline body (1), and a socket plug (8) is arranged on the inspection well (3) and communicated with a vacuum pipeline (9) which is communicated with a vacuum pump (11). According to the drainagepipeline sealing performance test structure and the sealing performance test method, the drainage pipeline sealing performance test can be completed conveniently, rapidly, accurately and safely in alabor-saving mode, water resource waste is avoided, mounting and dismounting are convenient during the test, and whether the sealing performance is qualified or not is judged accurately.

Description

technical field [0001] The invention belongs to the technical field of drainage pipes, and more specifically relates to a drainage pipe sealing performance test structure. The invention also designs a drainage pipe sealing performance test method. Background technique [0002] The piping system composed of ductile iron drainage pipes and their accessories is an important part of the urban municipal drainage network construction. The tightness of the piping system is difficult to detect on site, and the workload is heavy. Acceptance costs are high. However, the prior art generally adopts segmental installation and segmental water injection acceptance of the pipeline system, uses the action of the gravity system of water flow to conduct closed water inspection, or utilizes positive pressure air-tight test for acceptance. The prior art has the following disadvantages: 1. The acceptance test process in the prior art is cumbersome, the on-site installation and operation are inco...

AI Technical Summary

Problems solved by technology

The prior art has the following disadvantages: 1. The acceptance test process in the prior art is cumbersome, the on-site installation and operation are inconvenient, and the work of leak detection and leak detection is time-consuming and laborious, and is restricted by the construction environment and equipment, especially for arid and semi-arid water resources. Regions, the test cost is high, and it will cause a serious waste of water resources; 2. It is not easy to find the leak point during the test process, the leak detection and leak detection cycle is long, the closed water test results are not intuitive, and the test results are uncertain

3. When the positive pressure air tightness test (air-tightness test) is used to check and accept the pipeline system, it is not suitable for large-scale pipelines, such as pipeline systems with a nominal diameter of DN>1000mm, and the larger the diameter of the pipeline, the greater the potential risk of the positive pressure test

Images