Alarming device and alarming system for preventing backwater backward-flowing in gravity water drainage pipeline

Abstract

The invention discloses an alarming device for preventing backwater backward-flowing in gravity water drainage pipeline. The alarming device for preventing the backwater backward-flowing in the gravity water drainage pipeline includes a water drainage pipe, a t-shaped pipe is installed on the water drainage pipe, a water backward-flowing detection pipe is installed on a tunnel of the t-shaped pipe, a fluid level probe used for detecting a fluid level height is installed in the water backward-flowing detection pipe, the top part of the water backward-flowing detection pipe is sealed by a coverplate, an upward direction of a fluid level of the water backward-flowing detection pipe and an upward direction of the fluid level of the water drainage pipe are the same, the fluid level of the water backward-flowing detection pipe rises upwards the cover plate, and a breather pipe used for outputting air in the water backward-flowing detection pipe is installed at the top part of the water backward-flowing detection pipe; and a signal output terminal of the fluid level probe is connected with a signal input terminal of an alarming system. The invention further discloses an alarming system for preventing backwater backward-flowing in gravity water drainage pipeline. The alarming device for preventing backwater backward-flowing in gravity water drainage pipeline has the beneficial effectsthat the fluid level probe is arranged to monitor fluid level conditions in the water drainage pipe in real time, and when risks appearing, the risks can be treated in time to avoid waste water flowing backward into room of a building and avoid property loss and property disputes.

Description

technical field [0001] The invention relates to the technical field of water return prevention in buildings, in particular to an alarm device and an alarm system for preventing water return and backflow of gravity drainage pipes. Background technique [0002] Gravity drainage refers to the use of water potential generated by gravity to drain water. During the drainage process, the water is not pressurized, and only the gravity flow of the fluid is used to achieve the purpose of drainage. Therefore, the water can only flow from high to low. Gravity drainage The system is often used for domestic drainage of buildings. [0003] However, the current gravity drainage system in the building is usually a drainage pipe shared by multiple floors or drainage rooms. This pipe is affected by factors such as construction quality and drainage water quality, and it is easy to block and make drainage difficult, and it is not easy to be found, resulting in sewage and waste water. The return...

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Problems solved by technology

[0003] However, the current gravity drainage system in the building is usually a drainage pipe shared by multiple floors or drainage rooms. This pipe is affected by factors such as construction quality and drainage water quality, and it is easy to block and make drainage difficult, and it is not easy to be found, resulting in sewage and waste water. The return water is poured back into the bathroom, kitchen, living room, bedroom and other spaces in the building downstream of the pipeline, seriously affecting the function and use of the building, causing numerous property losses and property disputes

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