Intelligentize device used for fine material pipeline pneumatic conveying monitoring
A pneumatic conveying and pipeline technology, applied in the field of on-line monitoring devices, can solve the problems of poor reliability, complex algorithms, and large amount of calculation, and achieve the effects of overcoming measurement errors, less operation and maintenance, and low cost.
Inactive Publication Date: 2009-08-05
TIANJIN UNIV
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However, the algorithm is complex, the amount of calculation is large, and the reliability is poor.
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[0015] The intelligent device for powder pipeline pneumatic conveying monitoring of the present invention will be described in conjunction with the accompanying drawings and examples. figure 1 The arrows near the axis of the middle pipe represent the flow direction of the powder in the conveying pipe.
[0016] Such as figure 1 As shown, the intelligent device for monitoring the pneumatic conveying of the powder pipeline of the present invention is installed on the powder conveying pipeline 6, the device includes an organic casing 7, and the casing 7 includes an electrostatic sensor electrode array connected electrically 1 and an electronic circuit board 10, the electronic circuit board 10 includes a signal processing acquisition unit 2, a data processing unit 3, a system control unit 4 and a user interface unit 5 connected electrically. The device picks up the electrostatic signal induced by the powder in the conveying pipeline through the electrostatic sensor electrode array...
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The invention provides an intelligent device for monitoring pneumatic conveying of powder material pipelines, which includes an electrostatic sensor electrode array, an electronic circuit board and a casing. The electrode array of the electrostatic sensor connected electrically and the electronic circuit board composed of the signal processing acquisition unit, the data processing unit, the system control unit and the user interface unit are fixed in the shielded casing; the device is non-invasively embedded in the transmission The electrostatic sensor electrode array on the inner wall of the pipeline picks up the electrostatic signal induced by the powder in the pipeline, and gives the flow rate and flow state of the powder in the pipeline. The beneficial effect is that the device monitors the flow rate and flow state of the powder material online in real time, the electrodes do not interfere with the powder material flow, there is no wear problem, and the operation and maintenance amount is small. It overcomes the measurement error caused by improper selection of the electrode center distance, expands the flow rate measurement range, and has accurate measurement results. The device is stable and reliable, and can be used for monitoring powder pneumatic conveying in industries such as electric power, cement, and food.
Description
technical field [0001] The invention relates to an online monitoring device, in particular to an intelligent device for monitoring pneumatic conveying of powder material pipelines. Background technique [0002] The powder pneumatic conveying process is a complex gas-solid two-phase flow process. This process exists in a large number of various industrial production processes. For example, coal-fired thermal power plant primary air powder delivery, wind pipeline transportation of cement, pneumatic transportation of flour in food factories, etc. The flow velocity of the powder in the conveying pipeline is an important independent measurement parameter. If the flow rate is too slow, some powder will break away from the fluidized state and gradually deposit at the bottom of the pipeline, which will lead to pipeline blockage in severe cases. Therefore, the powder velocity must be large enough to ensure that the powder is in a fluidized state. On the contrary, if the powder fl...
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IPC IPC(8): G05B19/048G01P5/08
Inventor 闫勇邵嘉庆
Owner TIANJIN UNIV