Oil-water tow-phase flowmeter

A flowmeter, oil-water technology, applied in the direction of volume/mass flow generated by mechanical effects, and the detection of fluid flow by measuring differential pressure, which can solve the problem of insufficient accuracy of flowmeter and achieve the effect of improving measurement accuracy

Active Publication Date: 2011-11-16
海安华达石油仪器有限公司
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  • Abstract
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AI Technical Summary

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.

Method used

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Embodiment Construction

[0022] Such as figure 1 , 2 As shown, the flow meter of the present invention includes a piston 1, a piston rod 2, a cylinder body 3, an inlet three-way reversing valve 4, an outlet three-way reversing valve 8, a linear displacement sensor 5, a sealing resistance removal device 6, A, B Cavity, A, B cavity differential pressure sensors 9, 10, temperature sensor 7, balance weight 11 and microcomputer 12, said piston rod 2 is located at the upper and lower ends of piston 1, said cylinder body 3 is set outside piston 1, The imported three-way reversing valve 4 is located inside the piston 1, the linear displacement sensor 5 and the sealing resistance removal device 6 are parallel to the piston rod 2, wherein the upper and lower ends of the cylinder body 3 are respectively provided with plugs 16 -1, 16-2, the sealing assembly 17 and the pressure cap 18, an annular gap is formed between the outer diameter of the piston rod 2 and the inner diameter of the cylinder body 3, and the an...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/34
Inventor 钱如树
Owner 海安华达石油仪器有限公司
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