The Design Of Single Screw Pump Test Bench

With the vigorous development of today’s society, energy problem increasinglyprominent, oil demand is also more and more big. Screw pump as the most widely used oilfield production equipment, the surge in the number of manufacturers also have sprung up,more and more with the kinds of screw pump. Screw pump quality fit and unfit qualitydirectly affect oil field drilling, substandard quality, low efficiency, short service life of screwpump fault such frequent shortcomings will affect the oil production, and even lead to majoraccidents. Screw pump before they go out the scientific detection line is the most effectiveway to avoid these problems. At present many domestic screw pump manufacturers still usetraditional artificial detection methods, this approach cannot be allowed to, fully reflects theperformance of screw pump, so convenient, smart way of screw pump detection is theinevitable trend.The screw pump detection control system is according to the Jinzhou PengYu pumpindustry co. LTD. requirements and relevant national standard design, used in JinzhouPengYu pump industry co. LTD. a scientific and comprehensive product testing. Screw pumpdetection control system consists of upper machine and lower machine of two parts. Thelower machine part is composed of detection module and control module, upper machine partfor the data processing module. Detection module for detecting pressure of screw pump inletand outlet, medium flow and temperature, motor speed and other parameters during the test,according to the tolerance range and the maximum error range of the sensor is completed, theselection of data acquisition hardware and related hardware circuit design.The control moduleis mainly composed of high performance DSP controller and inverter to control the motorspeed of screw. Due to motor can’t precise mathematical model is established, and thus selectthe adaptive fuzzy control method combined with the SVPWM principle to designthree-phase ac motor speed control system, in order to verify the rationality of the design, setup in MATLAB/SIMULINK simulation model, the simulation results are obtained, finishedwith TMS320F2812chip as the core design related with motor speed control circuit hardwaredesign. Data processing module by using Visual Basic6.0to design software design oflanding interface, system control interface, print interface, the main control of test systeminterface for the whole test system online real-time monitoring, pump efficiency andvolumetric efficiency calculation and test data real time display, and save test data into thespecified database, provide some theoretical reference for screw pump research anddevelopment the new product, print interface can print all previous test data report，in theapplication of screw pump in the practical detecting system，Respectively, to complete thework at the speed100r/min and150r/min in case of screw detection，And print the testreport data table of screw pump.