Power plant water system and power plant water system control method
A control method and power plant water technology, applied in the field of control, can solve problems such as system pipeline vibration, system pipeline impact force, unstable operation of the power plant water system, etc., and achieve the effect of improving operational reliability
Active Publication Date: 2021-10-12
FUYANG CHINA RESOURCES POWER CO LTD
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Problems solved by technology
However, when the standby pump is put into use, it will bring a huge impact to the system pipeline, resulting in vibration of the system pipeline and unstable operation of the water system of the power plant
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Embodiment Construction
[0041] The power plant water system usually has a frequency conversion pump and a backup pump. When the frequency conversion pump fails and cannot operate, the backup pump is put into use to ensure the normal operation of the power plant water system. Commonly, in order to put the standby pump into use in time, the valve connected to the standby pump and used to discharge the fluid discharged from the standby pump into the system pipeline is usually set to a fully open state. However, if the valve is fully open, the moment the standby pump is put into use, the fluid will bring a huge impact to the system pipeline, resulting in vibration of the system pipeline, unstable operation of the water system of the power plant, and even rupture of the system pipeline The problem.
[0042] The defects in the solutions in the above prior art are all the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solu...
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Embodiments of the present invention provide a power plant water system and a control method for the power plant water system, which are applied to the power plant water system. The power plant water system includes a first water pump, a second water pump, system pipelines, a first valve, a second valve and electronic equipment. The first water pump discharges the fluid to the system pipeline through the first valve, and the second water pump discharges the fluid to the system pipeline through the second valve. The method includes: the electronic device acquires the operating frequency of the first water pump and the fluid flow rate of the system pipeline , and calculate the operating frequency and fluid flow of the first water pump to obtain the valve opening, and then generate a valve opening command according to the valve opening, and transmit it to the second valve, and the second valve uses the valve opening command in the valve opening command degrees open. Therefore, the second valve is opened with the calculated valve opening, thereby ensuring the stable discharge of fluid from the system pipeline, thereby improving the operational reliability of the water system of the power plant.
Description
technical field [0001] The invention relates to the technical field of control, in particular to a power plant water system and a control method for the power plant water system. Background technique [0002] The power plant water system plays an extremely important role in the thermal power plant. The stable operation of the power plant water system is related to the power supply quality of the thermal power plant. Usually, the water system of the power plant will be equipped with a frequency conversion pump and a backup pump. When the frequency conversion pump fails and cannot run, the backup pump will be put into use to ensure the normal operation of the water system of the power plant. However, when the standby pump is put into use, it will bring a huge impact to the system pipeline, resulting in vibration of the system pipeline and unstable operation of the water system of the power plant. Contents of the invention [0003] In view of this, the present invention prov...
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IPC IPC(8): G05D7/06
Inventor 杨洋陈官平
Owner FUYANG CHINA RESOURCES POWER CO LTD