Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pipeline direct drinking water supply system and control method thereof
The embodiment of the invention discloses a pipeline direct drinking water supply system and a control method thereof.The system comprises a water supply pump, a PLC and a plurality of water supply subareas, the PLC collects a pressure feedback value P of a constant pressure point in real time through a pressure sensor A, and if it is detected that P is smaller than Hf, the water supply pump is controlled to work in a frequency increasing and speed increasing mode; if P is detected to be greater than or equal to Hd, controlling the water supply pump to reduce the frequency and speed, and controlling the surge tank to supplement pressure and reduce the frequency; and if so, controlling the water supply pump to continuously reduce the frequency until a shutdown dormant state. According to the method, starting from the purpose of ensuring water use of the most unfavorable subarea, through analysis and calculation of pipeline impedance characteristics of the most unfavorable path, the pressure head change condition of a pressure control point caused by variable pressure control of a constant pressure point is described, and a pressure operation interval of variable pressure control is given to meet normal water use of the subarea.
本发明实施例公开了一种管道直饮水供水系统及其控制方法，所述系统包括供水泵、PLC控制器和多个供水分区，所述PLC控制器通过压力传感器A实时采集定压点压力反馈值P，若检测到P＜Hf，则控制供水泵升频升速工作；若检测到P≥Hd，则控制供水泵降频降速，稳压罐补压，降频的过程中，如果一直P>Hf，则控制供水泵持续降频直至停机休眠状态。本发明从保证最不利分区用水的目的出发，通过最不利路径的管路阻抗特性的分析和计算，从而描述出定压点的变压控制导致的控压点的压头变化情况，并给出变压控制的压力运行区间，以满足分区正常用水。
Pipeline direct drinking water supply system and control method thereof
The embodiment of the invention discloses a pipeline direct drinking water supply system and a control method thereof.The system comprises a water supply pump, a PLC and a plurality of water supply subareas, the PLC collects a pressure feedback value P of a constant pressure point in real time through a pressure sensor A, and if it is detected that P is smaller than Hf, the water supply pump is controlled to work in a frequency increasing and speed increasing mode; if P is detected to be greater than or equal to Hd, controlling the water supply pump to reduce the frequency and speed, and controlling the surge tank to supplement pressure and reduce the frequency; and if so, controlling the water supply pump to continuously reduce the frequency until a shutdown dormant state. According to the method, starting from the purpose of ensuring water use of the most unfavorable subarea, through analysis and calculation of pipeline impedance characteristics of the most unfavorable path, the pressure head change condition of a pressure control point caused by variable pressure control of a constant pressure point is described, and a pressure operation interval of variable pressure control is given to meet normal water use of the subarea.
本发明实施例公开了一种管道直饮水供水系统及其控制方法，所述系统包括供水泵、PLC控制器和多个供水分区，所述PLC控制器通过压力传感器A实时采集定压点压力反馈值P，若检测到P＜Hf，则控制供水泵升频升速工作；若检测到P≥Hd，则控制供水泵降频降速，稳压罐补压，降频的过程中，如果一直P>Hf，则控制供水泵持续降频直至停机休眠状态。本发明从保证最不利分区用水的目的出发，通过最不利路径的管路阻抗特性的分析和计算，从而描述出定压点的变压控制导致的控压点的压头变化情况，并给出变压控制的压力运行区间，以满足分区正常用水。
Pipeline direct drinking water supply system and control method thereof
管道直饮水供水系统及其控制方法
ZHENG YUANGUI (Autor:in)
01.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
,
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
Modular uninterrupted pipeline direct drinking water system and water supply method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2023