Annular water supply system used in building

By introducing a flowmeter and controller into the annular water supply system in the building, the stagnant section is detected and eliminated, the water quality reduction caused by the water use terminal for a long time is solved, and the water quality is improved.

CN222685608UActive Publication Date: 2025-03-28GUANGDONG ZHONGSHAN ARCHITECTURAL DESIGN INST CO LTD
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Patent Information

Application Number
CN202421253489.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-03-28
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

When the annular water supply system in the existing building has not used water for a long time, it is easy to lead to the formation of stagnant sections in the waterway, thereby promoting the growth of microorganisms and reducing the water quality of water.

Method used

An annular water supply system including a main water supply pipe, an annular water supply pipe, a flowmeter, a control valve, a drain pipe and a controller are designed. When the flowmeter detects that the water flow rate continues to be lower than the preset water flow rate for more than the preset time, the controller control control valve closes and the drain valve opens to form a short-term branched pipe network, and the water flows to the drain pipe in one-way, discharges water in the stagnant section, thereby eliminating the stagnant section.

Benefits of technology

Effectively eliminate stagnant sections in the waterway, prevent microorganisms from growing, and improve water quality.

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Abstract

The utility model discloses an indoor annular water supply system for a building. The indoor annular water supply system comprises a main water supply pipe, an annular water supply pipe, a plurality of water terminals, a flow meter, a control valve, a water drainage pipe, a water drainage valve and a controller, the annular water supply pipe comprises a water inlet end and a water return end, and the water inlet end and the water return end are both connected with the main water supply pipe to form an annular water path structure; the water using terminal is connected with the annular water supply pipe; the flow meter is arranged in the main water supply pipe, and the control valve is arranged at the water return end of the annular water supply pipe; the drainage pipe is connected with the main water supply pipe and located between the water inlet end and the water return end, and the drainage valve is arranged in the drainage pipe. The flow meter, the control valve and the drainage valve are all connected with a controller, and when the flow meter detects that the time that the water flow in the main water supply pipe is continuously lower than the preset water flow exceeds the preset time, the controller is used for controlling the control valve to be closed and the drainage valve to be opened. The utility model can eliminate the stagnant water section in the waterway and improve the water quality.
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