Gas flow sampling method
A gas flow and flow technology, which is used in liquid/fluid solid measurement, measurement device, measurement capacity, etc., can solve the problem of unstable accuracy of measured flow parameters, and achieve unstable accuracy, maintain accuracy, and ensure The effect of reliability
Inactive Publication Date: 2016-01-27
武汉钢铁有限公司
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[0004] The embodiment of the present invention provides a gas flow sampling method to optimize the measurement of various gas media to be measured, so as to solve the technical problem that the accuracy of the measured flow parameters is unstable
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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] refer to figure 1 As shown, a gas flow sampling method provided by an embodiment of the present invention is applied to an industrial control system, and the industrial control system includes a flow sensor and instrument monitoring equipment. The flow sensor is installed on the industrial pipeline that requires flow monitoring, and the me...
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The invention discloses a gas flow sampling method. A flow measurement value of an industrial pipeline acquired by a flow sensor is received; a pressure measurement value of the industrial pipeline acquired by a pressure sensor is received; a temperature measurement value of the industrial pipeline acquired by a temperature sensor is received; whether the pressure measurement value is equal to a preset pressure threshold is judged, and a first judgment result is acquired; whether the temperature measurement value is equal to a preset temperature threshold is judged, and a second judgment result is acquired; a correction formula matched with the first judgment result and the second judgment result is selected to correct the flow measurement value, and a flow correction value of the industrial pipeline is acquired. Measurement optimization is carried out on each measured gas medium, the technical problem that flow parameter measurement accuracy in the prior art is instable can be solved, measurement errors are reduced, and an accurate industrial pipeline inner flow is finally obtained continuously. Gas flow sampling reliability is ensured, and gas flow data acquisition accuracy is improved.
Description
technical field [0001] The invention relates to the technical field of industrial control systems, in particular to a gas flow sampling method. Background technique [0002] In the field of modern industrial control, flow detection is the first reliable basis for measurement management and trade settlement, and has strong practicability. The gas flow parameter is one of the most common parameters in detection and control, which is related to the quality and safety of the production process. The fluid media often used in the fields of steel, chemical and other enterprises generally include gases such as nitrogen, argon, oxygen, coal gas, etc., steam such as saturated steam, superheated steam, and liquids such as water and oil. [0003] The flow parameters obtained by the flow sensor are in many cases the working condition flow, not the standard flow. Standard throttling devices such as orifice plates, nozzles, etc. can measure standard volume or mass flow only when the temp...
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IPC IPC(8): G01F15/04
Inventor 韩超钱辉
Owner 武汉钢铁有限公司