Integrated measuring method for operating parameters of general centrifugal pump

Abstract

The invention relates to the field of detection for related operating parameters of a centrifugal pump and aims to provide an integrated measuring method for the operating parameters of a general centrifugal pump. The integrated measuring method for the operating parameters of the general centrifugal pump comprises the step of using a pressure transmitter and a temperature sensor, specifically comprises measuring the pump flow, the operating efficiency of the pump and heat taken away by the pump. According to the invention, only the pump inlet and outlet pressure, pump outlet water temperature and total water temperature after heat exchange are detected, the data are easily collected, the accuracy is very high, the sensor equipment basically does not need to be maintained, and the cost of the equipment is ultralow. The invention designs the brand new method for detecting the centrifugal pump flow, the method is fit for all water conveying systems, the calculation errors of flow and efficiency are within 3%, and the non-measuring use demand is met.

Description

technical field [0001] The invention relates to the detection field of relevant operating parameters of centrifugal pumps, in particular to an integrated measurement method for operating parameters of general centrifugal pumps. Background technique [0002] Centrifugal pumps are used in various fields of production and life. As the core equipment of hydraulic conveying systems, they play a decisive role. At the same time, the centrifugal pump is also the only high-energy-consuming equipment in the hydraulic conveying system. Its energy consumption determines the consumption of the system. Therefore, it is necessary to measure the operating parameters of the centrifugal pump, such as output flow, operating efficiency, and transmitted energy. Monitoring for energy analysis. For the judgment of the energy consumption of centrifugal pumps, we should comprehensively consider the output water volume, operating efficiency and operating power consumption of centrifugal pumps. [0...

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Problems solved by technology

[0003] At present, the flow detection of centrifugal pumps is realized by means of special flow meters, and the installation environment required by special flow meters in actual use is very harsh, and if the maintenance is not in place, it will be easily damaged, which also increases the initial investment. Therefore, many industrial enterprises have given up the installation of flowmeters, or installed them as decorations; at present, the detection of energy transmission is mainly through the installation of energy meters, and the measurement of energy by energy meters is based on flow detection; currently The detection of centrifugal pump efficiency by industrial enterprises is still a blank. Due to the limitation of input costs, only a few centrifugal pump manufacturers have the ability to detect centrifugal pump efficiency with centrifugal pump test benches, and the required test equipment is relatively high. Although the test accuracy High, but not suitable for promotion in industrial enterprises

[0004] At present, at least 80-90% of the centrifugal pump systems of industrial enterprises lack the ability to detect important data such as output flow and efficiency

Moreover, almost all industrial enterprises only require the operation of centrifugal pump systems to meet the needs of back-end users, and adjustments are also made through the experience of workers. The specific operating status, energy consumption, whether there are potential risks, whether there are The room for optimization and improvement, etc., are blind and ignorant

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