Downstream pipeline damming alarm non-return drainage system and non-return drainage method

A drainage system and downstream technology, which is applied in the direction of sewer pipe system, waterway system, drainage structures, etc., can solve the problems such as inability to prevent backflow, and achieve the effect of simple structure, reduced initial investment, and reduced civil engineering requirements

Active Publication Date: 2020-09-18
CHINA ARCHITECTURE DESIGN & RES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a downstream pipeline backwater alarm check drainage system and a check drainage method to solve the problem that the existing gravity drainage system is applied to the basement drainage and cannot prevent backfilling

Method used

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  • Downstream pipeline damming alarm non-return drainage system and non-return drainage method
  • Downstream pipeline damming alarm non-return drainage system and non-return drainage method
  • Downstream pipeline damming alarm non-return drainage system and non-return drainage method

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Embodiment 1

[0069] A specific embodiment of the present invention discloses a drainage check system, such as Figure 24 to Figure 28 As shown, it includes a check valve 101, a check valve outer tube 5 and an outer tube cover 6; wherein, the check valve 101 is provided in the check valve outer tube 5, and the check valve outer tube 5 is divided into an upstream cavity and In the downstream cavity, the check valve 101 can be opened under the impact of the upstream water flow or under the control of external force, so that the upstream cavity and the downstream cavity can be connected, and the check valve 101 can be closed under the control of its own gravity or external force, so that the upstream cavity and The downstream cavity is sealed and separated; the outer pipe cover 6 is detachably arranged on the check valve outer pipe 5, and the outer pipe cover 6 is opened for maintenance or replacement of the check valve 101.

[0070] In this embodiment, such as Figure 1 to Figure 3 As shown, the ...

Embodiment 2

[0108] Considering that the drainage check system only has one check valve 101, once the check valve 101 fails, if the back end of the check valve 101 is blocked by foreign matter, the drainage check system cannot work normally, and it is difficult to repair when the drainage volume is large. The working stability of the drainage check system is poor.

[0109] Based on the above problems, another specific embodiment of the present invention discloses a double non-return drainage system based on the drainage non-return system disclosed in Embodiment 1, such as Figure 29 As shown, the check valve outer tube 5 and the outer tube cover 6 are included. The check valve outer tube 5 is provided with at least two check valves 101 of Embodiment 1. The check valve 101 can be controlled by the impact of upstream water flow or external force Open, and the check valve 101 can be closed under the control of its own gravity or external force. Among them, the check valve 101 is a purely mechani...

Embodiment 3

[0120] Because the existing drainage check valve has a single function, it only plays a role in preventing backflow in the pipeline, and does not have the ability to force downstream stagnant water. Another specific embodiment of the present invention discloses a downstream pipeline stagnation alarm and non-return drainage system, such as Figure 30 to Figure 31 As shown, the system includes the check valve 101 of Embodiment 1, the check valve outer tube 5 and the outer tube cover 6. The check valve 101 is a purely mechanical check valve or an electric check valve. Among them, the pure mechanical check valve relies on the drainage impact force and the gravity of the check valve to achieve opening and closing; the electric check valve relies on the control motor to achieve opening and closing.

[0121] In this embodiment, the check valve outer tube 5 is used to install components such as the check valve 101, the submersible sewage pump 9, and the sensor (level gauge). The outer tu...

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Abstract

The invention relates to a downstream pipeline damming alarm non-return drainage system and non-return drainage method, and belongs to the technical field of building water supply and drainage. The system and the method solve the problem that backward flowing cannot be prevented when an existing gravity drainage system is applied to basement drainage. The downstream pipeline damming alarm non-return drainage system comprises a non-return valve outer pipe, a non-return valve, a monitoring assembly and a control system; the non-return valve is arranged in the non-return valve outer pipe, can beopened under the impact of upstream water flow or the control of external force, and can be closed under the control of self gravity or external force; the monitoring assembly is used for monitoring upstream and downstream water levels of the non-return valve; the control system comprises a controller and an alarm device, and the controller is connected with the monitoring assembly and used for receiving upstream and downstream water level signals monitored by the monitoring assembly and sending action instructions to the non-return valve and the alarm device according to the water level state. The system and the method can be applied to basement drainage, can give an alarm in time when a downstream pipeline is damped, and effectively prevents drainage backflow caused by the damped downstream pipeline.

Description

Technical field [0001] The invention relates to the technical field of building water supply and drainage, in particular to a downstream pipeline stagnation alarm and non-return drainage system and a non-return drainage method. Background technique [0002] In the "Design Standards for Building Water Supply and Drainage" GB50015-2019, it is stipulated that when the indoor floor of the building is lower than the outdoor floor, a sewage collection tank, sewage pump or finished sewage lifting device should be installed. [0003] For the drainage system with sewage sump and sewage pump, the sump should have a certain volume to meet the water output of the drainage pump for at least 5 minutes. It should also meet the installation and inspection requirements for pump settings, water level controllers, and grilles, and must be in the pool. A flushing pipe is set at the bottom and an over-warning water level alarm device is configured. From the above design requirements, it can be known t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F3/00E03F3/04E03F7/04E03F5/22G01D21/02
CPCE03F3/00E03F3/04E03F5/22E03F7/04G01D21/02
Inventor 赵锂赵德天张辉梁岩陈钰玲
Owner CHINA ARCHITECTURE DESIGN & RES GRP CO LTD
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