Oil-water tow-phase flowmeter

Abstract

The invention provides an oil-water two-phase flowmeter. The flowmeter comprises a piston, piston rods, a cylinder, an inlet three-way reversing valve, an outlet three-way reversing valve, a linear displacement sensor, a seal resistance removal device, cavities A and B, differential pressure transducers for the cavities A and B, a temperature sensor, a balance weight and a micro-computer, wherein the piston rods are arranged at upper and lower ends of the piston; the cylinder is sleeved outside the piston; the inlet three-way reversing valve is positioned inside the piston; and the linear displacement sensor and the seal resistance removal device are parallel to the piston rods. The oil-water two-phase flowmeter has the advantages that: 1, total instant flow and accumulated flow of a two-phase mixture can be measured online, and the respective instant flow and accumulated flow of oil and water can be simultaneously measured; 2, the flowmeter can be connected in series between an experimental model and a back pressure valve, the blank volume of pipelines between the experimental model and the measurement device can be minimized, so that the measurement device can truly and instantly reflect the dynamic situation of two phases in the experimental model; and 3, the flow meter can endure high pressure.

Description

technical field [0001] The invention relates to an oil-water two-phase flowmeter, belonging to the technical field of instrumentation. Background technique [0002] Flowmeter is one of the large categories of instruments in process automation instruments and devices. It is widely used in metallurgy, electric power, coal, chemical industry, petroleum, transportation, construction, textile, food, medicine, agriculture, environmental protection and people's daily life. It is an important tool to develop industrial and agricultural production, save energy, improve product quality, improve economic efficiency and management level, and occupies an important position in the national economy. In process automation instruments and devices, flow meters have two major functions: as a detection instrument for a process automation control system and as a total meter for measuring the amount of materials. [0003] In the process of oilfield scientific research, a large number of experime...

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Problems solved by technology

[0003] In the process of oilfield scientific research, a large number of experiments are to be done. During the experiment, the oil-water two-phase mixture is accurately measured, but the accuracy of the existing flowmeter is not high enough.

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