Measurement system and method for two-phase flow flow and dryness

Abstract

The invention provides a measurement system and method of two-phase-flow flow and dryness. The system comprises a first pipe, a second pipe and a third pipe, and a cooling pipe is arranged between thesecond pipe and the third pipe; a temperature measurement device and a pressure measurement device are arranged at the junction of the first pipe and a two-phase-flow loop, and the first pipe is internally provided with a heating device; a temperature measurement device and a pressure measurement device are arranged at the junction of the second pipe and the first pipe, and the second pipe is internally provided with a heating device; a temperature measurement device and a pressure measurement device are arranged at the junction of the cooling pipe and the second pipe, and the cooling pipe isinternally provided with a cooler; a temperature measurement device and a pressure measurement device are arranged at the junction of the third pipe and the cooling pipe, the third pipe is internallyprovided with a heating device, and a temperature measurement device and a pressure measurement device are arranged at the junction of the third pipe and the two-phase-flow loop. The measurement system and method of the two-phase-flow flow and the dryness are low in price and high in reliability, have no specific requirement on the working medium of the two-phase flow, the flow and the dryness ofthe flow before testing are not damaged, during measurement, a gas-liquid separating device is not needed, and the requirement for field quick measurement can be met.

Description

technical field [0001] The invention belongs to the field of fluid measurement, and in particular relates to a measurement system and method for flow and dryness of two-phase flow. Background technique [0002] Gas-liquid two-phase flow exists in large quantities in industrial production and scientific research experiments. In order to control management or experimental research on two-phase flow, it is necessary to measure its flow and dryness. Currently commonly used flowmeters can only measure the flow of single-phase flow, and the measurement error is large and the price is expensive when the flow is low. Compared with single-phase flow, two-phase flow is more complex. Due to the complex and changeable flow patterns, it becomes very difficult and expensive to measure the flow rate and dryness of two-phase flow with traditional single-phase flow measurement methods. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies ...

AI Technical Summary

Problems solved by technology

At present, the commonly used flowmeter can only measure the flow of single-phase flow, and the measurement error is large and expensive in the case of low flow.

Compared with single-phase flow, two-phase flow is more complicated. Due to the complex and changeable flow patterns, it becomes very difficult and expensive to measure the flow rate and dryness of two-phase flow with traditional single-phase flow measurement methods.

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