Double-pipe pressure sewage delivery system joint capable of realizing non-water-stopping maintenance

Abstract

The invention discloses a double-pipe pressure sewage delivery system joint capable of realizing non-water-stopping maintenance. The double-pipe pressure sewage delivery system joint capable of realizing non-water-stopping maintenance comprises a joint shell and two sewage delivery pipes arranged in parallel to each other, wherein each sewage delivery pipe is provided with two overhaul gate valves; the two sewage delivery pipes communicate with each other through a sewage delivery communicating pipe; the connection positions of the sewage delivery communication pipe and the two sewage deliverypipes are both positioned between the two overhaul gate valves of the corresponding sewage delivery pipes, and connection gate valves are arranged at the connection positions. The double-pipe pressure sewage delivery system joint capable of realizing non-water-stopping maintenance is applied to a pressure double-pipe sewage water delivery system, and the important functions of intensive combinedarrangement for convenient maintenance, connecting arrangement for maintenance of water delivery capacity, water-free operation to ensure the safety of maintenance personnel, zero discharge of sewageduring maintenance for environmental ecology protection and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of sewage drainage pipe network construction, in particular to a dual-pipe pressure sewage water delivery system node capable of non-stop maintenance. Background technique [0002] In the prior art, the construction of the pressurized sewage water delivery system usually adopts the following methods: First, most of the pressurized sewage water delivery systems are constructed with a single water delivery pipe. [0003] The second is that the connection, drainage, and maintenance nodes of the dual-pipe pressure sewage water delivery system project are scattered, and technical measures for zero pollution discharge during maintenance are usually not set; [0004] The above two approaches have the following disadvantages: [0005] (1) Practice 1 Once the single-pipe pressure sewage water delivery system has an accident such as pipe damage, it will definitely face a water stoppage across the line, resulting in s...

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Problems solved by technology

[0003] The second is that the connection, drainage, and maintenance nodes of the dual-pipe pressure sewage water delivery system project are scattered, and technical measures for zero pollution discharge during maintenance are usually not set;

[0005] (1) Practice 1 Once the single-pipe pressure sewage water delivery system has an accident such as pipe damage, it will definitely face a water stoppage across the line, leading to system paralysis, and the drainage pollution can only be discharged to the surrounding environment during maintenance, directly leading to environmental pollution

[0006] (2) Practice 2 The connection, drainage and maintenance nodes of the double-pipe pressure sewage water delivery system are scattered, which is inconvenient for routine inspections and emergency repairs. Failure to set up zero-emission pollution during maintenance will inevitably lead to discharge of drainage pollution to the surrounding environment during maintenance , directly lead to environmental pollution

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