Measurement of Oil Consumption by Turbine Flow Meters in Conditions of Wax Deposition

Commercial metering of oil is performed at almost all stages of the life cycle, from well production control to the transfer of the produced oil to the end customer. In most cases, special systems for measuring the quantity and quality of commercial oil (SIQO) are used for this. If such a system implements an indirect dynamic measurement method, then a turbine flow meter is most often a means of measuring volumetric flow. Its accuracy depends on many external factors, including wax deposits on the inner surface of the measuring pipeline and on the elements of the flow meter itself. The article investigates the influence of the thickness of the paraffin layer on the error value of the turbine flow meter. It is shown that the decrease in metrological reliability occurs mainly due to the appearance of a paraffin layer in the measuring line itself. It is proposed to determine the timing of the metrological characteristics verification by indirect parameters, in particular, by the change in pressure in the measuring line.

Turbine flow meter with increased metrological reliability

Рассматривается турбинный расходомер применяющийся в качестве элемента бортовой системы управления объектов космической, авиационной, судовой техники для контроля расхода рабочих жидкостей, в котором преобразование частоты в напряжение осуществляется путем сглаживания импульсов с постоянной вольт-секундной площадью, формируемых из сигнала магнитоиндукционного преобразователя. Величина площади задается с помощью генератора с кварцевой стабилизацией частоты и прецизионного стабилитрона. Показывается, что функция преобразования расходомера остается неизменной в течение всего срока эксплуатации. Описывается встроенная схема самодиагностики, обеспечивающая автоматизированную проверку метрологической исправности расходомера в процессе эксплуатации. The article considers a turbine flow meter used as an element of the on-board control system of objects of space, aviation, ship equipment to control the flow of working fluids, in which the conversion of frequency into voltage is carried out by smoothing pulses with a constant volt-second area formed from the signal of a magnetic induction converter. The size of the area is set using a crystal oscillator with frequency stabilization and a precision zener diode. It is shown that the conversion function of the flow meter remains unchanged throughout the life of the meter. A built-in self-diagnosis circuit is described, which provides an automated check of the metrological serviceability of the flow meter during operation.

On the development of low cost, optimizable, 3D printed turbine flow meters for pipe and open channel applications

<div> <p>The work sets out a method and evaluates the accuracy of a 3D printed turbine flow meter for open channel and pipe flow; that can be optimised for different situations.  The motivation for this project was to create flow meters that are low cost and available to community groups and interested individuals, this work was conducted as part of the CAMELLIA project (Community Water Management for a Liveable London).  The flowmeters have been trialled in a number of locations by users with different skill sets and technical know-how.  Hall effect sensors have been coupled with consumer grade electronics to develop the most opensource system possible.  This work has taken advantage of recent advances in DLP printing, allowing for greater resolution at a lower cost than previous generations of 3D printers.  This is combined with work developed by the Open Prop software team, has enabled user customisable sensors to be built.  </p> </div><div> <p>The presented work aims to create an opensource, low cost and easy to use solution to some flow monitoring problems.  This paper details the lessons learnt and successes of this approach; it aims to create a basis for which further development and deployment of these sensors can be achieved.  </p> </div>

Research on Non-Invasive Laser Doppler Current Measurement for Hydrothermal Vents Flow Rates Profile

Hydrothermal vents play important roles in the dynamic process of the stratosphere and the circulation of energy materials. Nowadays, invasive devices such as vane-type flow meter and turbine flow meter are commonly utilized to estimate the flow rates of hydrothermal vents. In- situ observation data obtained by LDCP system and CFD methods will be combined to solve the blind area of LDCP system during in-situ observation measurements. The flow rates profiles obtained in this project will improve the research on the circulation of energy materials and mineralization.

Design, simulation and practical experimentation of miniaturized turbine flow sensor for flow meter assessment

Flow sensors are very essential in many aspects of our daily lives. Many of the industrial processes need a very consistent flow sensor to monitor and check for irregularities in their system. Therefore, flow sensor is an important tool for advanced operation in industrial environment. In this paper, the design and development of a 3D fabricated flow sensor was carried out using SolidWork 3D CAD. SolidWork Flow Simulation was used to model the effect the turbine flow sensor would have on a constant flowing water while MATLAB Simulink flow graph was created to visualize the effect of turbine flow sensor response with voltage input. Afterwards, the design was 3D printed using UP Plus 2 3D printer. The experimentation involved selection of sensors, coding to control the turbine flow sensor and automatic data logging and storage. During the design phase, the sensors and actuators were assembled using locally sourced material. Subsequently, under controlled laboratory environment, the turbine flow sensor was tested using a DC motor which was programmed to control the revolution per minute(rpm) of the turbine flow sensor. The rpm and velocity of the turbine flow meter was measured and stored in a database via Microsoft Excel using Cool Term Software. A total number of 517 readings were analysed to evaluate the performance of the turbine flow sensor. The result shows that the turbine flow meter is responsive to the motor input voltage and yielded accurate measurement of rpm and velocity of turbine flow meter.