Industrial steam supply flow measuring system based on attemperating water flow and working method

Abstract

The invention discloses an industrial steam supply flow measuring system based on the attemperating water flow and a working method. A plurality of temperature measuring points and a plurality of pressure measuring points are arranged on an industrial steam supply pipeline and an attemperating water pipeline; and due to the fact that the pipe diameter of the attemperating water pipeline connected with the industrial steam supply pipeline is small, the fluid flow is small, and the fluid density is large, so that measurement is easy, the measurement precision is high, and measurement can be achieved through multiple measurement modes such as an ultrasonic flowmeter or a vortex shedding flowmeter. Therefore, the flow of the attemperating water entering the industrial steam supply pipeline can be accurately measured, and the pressure and the temperature of the attemperating water and the pressure and the temperature of the industrial steam supply before and after attemperating are combined, so that the flow of the industrial steam supply is finally calculated. According to the industrial steam supply flow measuring system based on the attemperating water flow and the working method provided by the invention, the investment cost is low, the operation is simple, and the precision of the obtained industrial steam supply flow (especially when the industrial steam supply flow is small) is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of industrial steam supply for coal-fired generating sets, and in particular relates to an industrial steam supply flow measurement system and working method based on desuperheating water flow. Background technique [0002] In the industrial steam supply process of the power plant, the data on the meter should be used as the basis for the settlement of the steam flow. Therefore, the metering of the steam meter plays an important role in the current heat supply settlement of the power plant, and its measurement accuracy is directly related to the accuracy of the settlement. Sex is closely related to the economic interests of both supply and demand. However, there are still some deficiencies in the use of the current power plant heating steam instruments. Take the standard throttling differential pressure flow metering device that is widely used at present as an example. Fluid flow state etc. are very demandi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the design, selection, installation and measurement process of the standard throttling differential pressure flow metering device in the industrial steam supply of the existing power plant, and to provide an industrial steam supply flow measurement system based on desuperheating water flow And working methods, effectively solve the problem of narrow measurement range and low load measurement error

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