A flow detection device and its numerical modeling method
A flow detection device and flow detection technology are applied in the flow control of electric devices, etc., which can solve the problems of increasing measurement error, inability to effectively improve control accuracy, and reduce signal accuracy, so as to achieve the effect of improving accuracy
Active Publication Date: 2016-08-03
KINGLAB LAB EQUIP +1
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Problems solved by technology
[0002] The fluid in the pipeline system will have pressure loss due to the influence of pipe components (valve, elbow, manifold, reducer, filter, etc.), making the flow velocity and flow distribution in the pipeline unstable. However, there is currently no equipment that can directly measure the flow rate. It can only be inferred by using the flow rate detection device to measure it. However, the difference in the use environment makes the simulation results or derivation formulas in the laboratory unable to be directly applied to the field. Let the flow control in the pipeline system always be in an open-loop control environment, and the control accuracy cannot be effectively improved
[0003] Furthermore, when the pipeline fluid passes through the valve structure, due to the difference in the opening angle of the valve structure, the fluid at the back end of the valve will produce different degrees of turbulence, which will increase the measurement error and reduce the signal accuracy.
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Embodiment 1
[0036] Depend on figure 1 with figure 2 It can be known from the above that the flow detection device S is used to control the flow rate of the gas conveyed in the gas flow pipeline 5, and the flow rate in the gas flow pipeline 5 can be further adjusted by the flow detection device S to facilitate subsequent use. The flow detection device S includes a measuring pipeline 10 , a valve control module 20 , a flow detection module 30 and a processing module 40 . The measuring pipeline 10 is assembled on one side of the airflow pipeline 5. When the diameters of the airflow pipeline 5 and the measuring pipeline 10 are different, an adapter 11 can be added for easy assembly.
[0037] The valve control module 20 is configured in the measuring pipeline 10 , the valve control module 20 includes a valve structure 21 and a valve actuation unit 22 , and the valve control module 20 can adjust the opening degree of the valve structure 21 by controlling the valve actuation unit 22 . In prac...
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The invention relates to a flow detection device and a flow detection numerical modeling method, which are used for controlling the gas flow in a pipeline. The flow detection device includes a measurement pipeline, a valve control module, a flow detection module and a processing module. The processing module can use the data measured by the flow detection module to construct a numerical model of the flow characteristic fitting curve, and feedback from the processing module A control signal is used to regulate the opening degree of the valve structure, so as to further precisely control the flow in the pipeline.
Description
technical field [0001] The present invention relates to a flow detection device suitable for gas flow control in an air flow pipeline, which uses measurement data to construct a numerical model and feeds back a control signal to regulate the opening degree of a valve device to precisely control the flow in the air flow pipeline and Its numerical modeling method. Background technique [0002] The fluid in the pipeline system will have pressure loss due to the influence of pipe components (valve, elbow, manifold, reducer, filter, etc.), making the flow velocity and flow distribution in the pipeline unstable. However, there is currently no equipment that can directly measure the flow rate. It can only be inferred by using the flow rate detection device to measure it. However, the difference in the use environment makes the simulation results or derivation formulas in the laboratory unable to be directly applied to the field. Keeping the flow control in the pipeline system alwa...
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IPC IPC(8): G05D7/06
Inventor 李进宗
Owner KINGLAB LAB EQUIP