Sensor for measuring liquid-gas-liquid three-phase fluid speeds and content of each phase
A three-phase flow and phase content technology, applied in the sensor field of velocity and each phase content, can solve the problems of flow field disturbance, inability to guarantee the measurement space accuracy, large volume, etc., and achieve small flow field disturbance, simple structure, and measurement range. wide effect
Inactive Publication Date: 2017-01-11
成都金景盛风科技有限公司
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Problems solved by technology
However, this technology is currently mostly used in the measurement of two-dimensional flow velocity of gas-liquid two-phase flow
In addition, because the measuring end of an integral measuring probe needs to contain components that simultaneously measure multiphase flow velocity and gas content, due to dimensional processing and manufacturing reasons, the volume of such measuring probes is too large, and the spatial accuracy of the measurement cannot be guaranteed , there is also an obvious disturbance to the flow field
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[0027] The principle and structure of the present invention are further illustrated with a specific embodiment. Specifically, it is a sensor that measures the velocity and content of each phase of oil-air-water three-phase flow. Its structural scheme diagram, and Figure 1-4 same. The sensor consists of a measuring probe made of stainless steel material with a long cylindrical shape and a frustum-shaped end. Its appearance is similar to figure 1 Consistent with that shown. Along the central axis of the measuring probe, at the measuring end, that is, the end in the shape of a truncated cone, there is a central hole, also known as a pressure hole, and six other holes at intervals of 60o are evenly distributed along the circumferential direction, which is electrode hole. All holes are 0.8mm to 1mm in diameter and the measuring probe is 5mm in diameter. It means that the spatial accuracy of the measurement is 5mm, and it also means that it is necessary to assume that the thr...
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The invention discloses a sensor for measuring liquid-gas-liquid three-phase fluid speeds and the content of each phase, which comprises a measurement probe with a long cylindrical appearance and a circular truncated cone-shaped end part, a pressure sensor, six conductive electrodes, and a data acquisition and analysis system. Along the central axis of the measurement probe, a central hole is arranged at the measurement end, the central hole is a pressure hole, and another six electrodes are uniformly distributed along the circumferential direction. By using the value in the pressure hole, the three-phase fluid flowing speed and the flow can be determined, and the conductive electrodes can be used at the same time for measuring the content of each phase.
Description
technical field [0001] The invention belongs to the field of fluid measurement, in particular to a sensor for measuring the velocity and the content of each phase of liquid-gas-liquid three-phase flow. Background technique [0002] Liquid-gas-liquid three-phase flow refers to the flow of a material system composed of two liquids with different components and a gas. According to the definition of thermodynamics, the three substances in the system have their own and uniform physical and chemical properties, which constitute three different states of the substances, that is, "three phases". There are clearly separable interfaces between the phases, which can be separated by physical methods. [0003] In engineering, liquid-gas-liquid three-phase flow is a common flow phenomenon. For example, in the petroleum industry, the crude oil produced at the wellhead of an oil well is a multiphase flow with complex components. Among them, the oil phase refers to the liquid hydrocarbon ...
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IPC IPC(8): G01D21/02
Inventor 路明
Owner 成都金景盛风科技有限公司