A water supply flow control system and method based on hot water usage

By installing supply flow sensors and return flow sensors in the centralized hot water supply system, combined with flow control valves and water pumps, the supply flow and pump frequency are dynamically adjusted, solving the energy waste problem caused by the differences in hot water demand among different users, and achieving energy saving and uniform water supply.

CN117308175BActive Publication Date: 2026-07-03SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE CO LTD
Filing Date
2023-10-25
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In centralized hot water supply systems, different users have different hot water demands and usage habits, which makes it impossible for the unified heating method to distribute heat reasonably, resulting in energy waste.

Method used

By installing water supply flow sensors, return flow sensors, flow control valves, and water pumps within the same level of the pipe network, and combining this with a central processor for dynamic regulation, the minimum flow rate is determined based on the return flow rate, and the water supply flow rate and pump frequency are adjusted to achieve precise water supply management on the user side.

Benefits of technology

It enables dynamic control on the user side, meets actual needs, reduces energy consumption, and improves the uniformity of hot water distribution and energy-saving effect.

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Abstract

This invention proposes a water supply flow control system and method based on hot water consumption. The minimum flow rate is determined by measuring the return water flow rate of users within the same level of the pipe network. The return water flow rate of other users within the same level of the pipe network is adjusted according to the minimum flow rate. The operating frequency of the user's water pump is controlled according to the water supply flow rate of users within the same level of the pipe network. This meets the actual needs of users, achieves dynamic regulation, and realizes the goal of energy saving.
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