Manhole cover plate with rectification cover and vent valve of combined water supply pipeline

A technology for water supply pipes and manhole cover plates, which is applied in the directions of pipe elements, underwater structures, pipes/pipe joints/pipe fittings, etc., can solve the problems of large water head loss, high number of structures and high civil construction investment, and achieves easy processing and structure. Simple, practical effects

Inactive Publication Date: 2014-03-19
CHINA NERIN ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, manholes and exhaust valves are usually set separately in water delivery projects, resulting in a large number of openings in the water delivery main pipe, a large loss of water head, and a high number of corresponding structures and civil engineering investment

Method used

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  • Manhole cover plate with rectification cover and vent valve of combined water supply pipeline
  • Manhole cover plate with rectification cover and vent valve of combined water supply pipeline

Examples

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Embodiment

[0014] Examples: The present invention has a combined water supply pipe manhole cover plate with a fairing and an exhaust valve. A fairing plate 3 with the same shape as the inner wall of the water supply main pipe 2 is added to the opening of the water supply main pipe 2 of the ordinary manhole, and the fairing The cover plate 3 and the manhole cover body 1 are welded and connected as a whole through a short steel pipe 6. After installing the manhole fairing plate 3, when the water supply pipeline is in normal operation, the outer wall of the main pipeline at the manhole is basically continuous, which effectively maintains the stable flow of water in the pipeline, and eliminates the local head loss caused by ordinary manholes. During maintenance, the cover body 1 and the fairing plate 3 are opened together, which does not affect the personnel to enter the pipeline for maintenance.

[0015] The manhole fairing and the exhaust valve 4 are combined to form an assembly. On the bas...

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Abstract

The invention relates to a manhole cover plate with a rectification cover and a vent valve of a combined water supply pipeline. The manhole cover plate comprises a cover plate body connected with the position of a manhole of a water supply main pipe, wherein a through hole is arranged at the center of the cover plate body, a short tube penetrates through the through hole of the cover plate body, an air hole is formed in the tube body at the lower end of the short tube positioned in the manhole, the lower end of the short tube is connected with a rectification cover plate which covers the hole in the position of the manhole of the water supply main pipe, and the upper end of the short tube is sequentially connected with a repair valve and the vent valve through flanges. By means of structural optimization and innovation, a water delivery system can effectively save energy and reduce cost, and the whole device is simple in structure, easy to manufacture, strong in practicability, applicable to all water supply projects using large-diameter pipes, especially suitable for long-distance water delivery pipelines.

Description

technical field [0001] The invention relates to a water supply pipeline manhole cover plate, in particular to a combined water supply pipeline manhole cover plate with a fairing cover and an exhaust valve. technical background [0002] Water pipeline is a common part of municipal water supply projects. In order to ensure its normal operation and maintenance needs, auxiliary structures such as valve wells, exhaust wells, and drainage wells should generally be installed on water pipelines. For large-diameter pipelines (usually DN800 Above) for internal maintenance problems, maintenance manholes must be set at a certain distance. [0003] The above-mentioned auxiliary facilities play an important and indispensable role in ensuring the normal operation of the water delivery pipeline, but at the same time, they will also affect the flow state of the water flow in the pipeline, resulting in local head loss, thereby increasing the energy consumption of the water delivery system. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/07F16L55/18
CPCE02D29/1436
Inventor 刘奕缪晶广周斌洪庆松魏晓军
Owner CHINA NERIN ENG
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