38results about How to "Performance real-time monitoring" patented technology

The invention discloses a method for measuring and calculating pump efficiency based on soft flow measurement for a drainage pump. A thermodynamic system consists of a low-pressure heater (low heater for short) and the drainage pump which are connected in series. The method comprises the following steps: acquiring water pressure of an outlet of the low heater with the drainage pump, acquiring thetemperature of inlet water of the drainage pump and acquiring real-time current and real-time voltage of a motor collocated in the drainage pump, motor efficiency and power factor from a database of a factory-level SIS or a DCS of a heat-engine plant, acquiring inlet water pressure and average drainage specific volume of the drainage pump through calculation, calculating the pressure difference of the drainage pump, namely the difference between the outlet water pressure of the heater with the drainage pump and the inlet water pressure of the drainage pump, calculating the flow of the drainage pump by using a method for measuring and calculating the flow of the drainage pump in a low heating system of a thermal power unit based on energy balance, and calculating the output power and the input power of the drainage pump according to the data. The ratio of the calculated output power to the input power is the efficiency of the drainage pump.

The invention provides a device for detecting the performances of smoke pollution treatment equipment. A smoke inlet and a smoke outlet of the smoke pollution treatment equipment are respectively communicated with an equipment front smoke flue and an equipment rear smoke flue. The device comprises at least two groups of sampling pipes, wherein each group of sampling pipes comprise at least two sampling pipe layers. A smoke flue cross section where any sampling pipe layer is located comprises a plurality of equal areas, wherein one part of the equal areas are respectively provided with sample holes disposed on the sampling pipe layer, and the projections of sampling holes disposed on other sampling pipe layers are disposed at other part of the equal areas. The number of the plurality of equal areas of any smoke flue cross section where any sampling pipe layer is located is equal to the number of all sampling holes disposed on the sampling pipes of each group of sampling pipes. Each sampling pipe layer is connected with a smoke component collection and measurement unit. The device can accurately measure the processing effect of the smoke pollution treatment equipment, and monitors the operation condition of the equipment in real time.

The invention relates to a real-time monitoring method for abnormal power performance of a wind turbine, comprising the steps of: acquiring historical operating data of the wind turbine to be monitored and historical data of the anemometer tower of the wind farm where it is located in the same period; cleaning the historical operation data of the wind turbine to be monitored , eliminate invalid data, and retain the data under the normal operating state of the wind turbine to be monitored; and construct a multi-dimensional feature vector representing the power performance of the wind turbine, and divide the multi-dimensional feature vector into a model learning group and a model verification group. The beneficial effects of the present invention are: the present invention is more accurate and effective in quantitative evaluation of generated power, and not only the operating data of the wind turbine itself but also the data at the wind measuring tower are considered when establishing the prediction model, which significantly improves the model performance. prediction accuracy. The purpose of real-time monitoring of the power generation performance of the wind turbine can be realized; the invention can also monitor the change of the power performance of the wind turbine in real time.

A pump efficiency measurement method based on soft flow measurement of independent low-add-drain pumps. The thermal system of the present invention is composed of an independent low-pressure heater (referred to as low-pressure heater) and a drain pump. From the database of the plant-level monitoring information system SIS or the distributed control system DCS of the thermal power plant, obtain the outlet water pressure with the drain pump heater, obtain the temperature of the inlet water of the drain pump, and obtain the real-time current, real-time voltage, and motor efficiency of the drain pump configuration motor. With the power factor, the inlet water pressure of the drainage pump and the average drainage specific volume are calculated, and the pressure difference of the drainage pump is calculated as the difference between the outlet water pressure of the heater with the drainage pump and the inlet water pressure of the drainage pump, and the independent thermal power unit based on energy balance is applied. The low-load drain pump flow measurement method calculates the drain pump flow rate, and calculates the drain pump output power and input power according to the above data. The ratio of output power to input power is calculated as the drain pump efficiency.