Secondary water supply optimization method and device for reducing pressure of municipal pipe network

Abstract

The invention discloses a secondary water supply optimization method for reducing municipal pipe network pressure, which comprises the following steps: S1, collecting historical water supply data, and calculating to obtain a daily water consumption reference curve and a water consumption peak time period; s2, taking the time that the starting time of the water consumption peak period is advanced by a certain advance time amount as the preposed time, and fully storing the water tank in advance from the preposed time; and S3, carrying out peak shifting water inflow stabilizing operation according to the actual water storage amount of the water tank in the water consumption peak period. The invention further discloses a device which comprises a control center, a regulating valve, a flow meter and a liquid level meter. According to the method, a daily water reference curve and daily average water flow are calculated according to historical water supply data, average water replenishing flow is calculated on the basis of the daily average water flow, a water tank is fully filled with the average water replenishing flow in advance before the peak water consumption period, and peak shifting water inflow stabilizing operation is carried out by fully utilizing the adjustable water storage volume of the water tank in the peak water consumption period; therefore, the pressure of a water pipe network during the peak period of water consumption is reduced, water pressure and water flow velocity fluctuation in the pipe network are reduced, and energy consumption is saved.

Description

technical field [0001] The invention relates to the field of secondary water supply system management, in particular to a secondary water supply optimization method and device for reducing the pressure of a municipal pipe network. Background technique [0002] With the rapid development of residential quarters in cities, the importance of secondary water supply systems as ancillary facilities for residential buildings has become increasingly prominent. All are equipped with water tanks as the transfer part between the urban water pipe network and the user's water. In the normal water supply of the urban water pipe network, the most economical water supply flow rate is set, and the energy consumption of providing the same volume of water at the most economical water supply flow rate is the smallest. During the low water consumption period, each residential area connected to the water pipe network consumes less water, and the water supply in the pipe network is greater than t...

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Problems solved by technology

[0004] The present invention aims to overcome the problems in the prior art that the water supply pressure of the pipe network still needs to be greatly increased and the energy consumption is increased during water supply during the peak water consumption period, and the adjacent secondary water supply systems with similar water properties still have insufficient water supply, and provide A secondary water supply optimization method and device for alleviating municipal pipe network pressure, calculating daily water reference curves and daily average water flow based on historical water supply data, calculating the average water replenishment flow based on the daily average water flow, and filling the water tank in advance before the peak water consumption period , make full use of the adjustable water storage volume of the water tank during the peak water consumption period to perform peak shifting and smooth water intake operation, thereby reducing the pressure of the water pipe network during the peak water consumption period, reducing the fluctuation of water pressure and water flow rate in the pipe network, and saving energy consumption

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