Liquid flow monitoring system based on wet type capacitance liquid level sensor
A technology of capacitive liquid level and liquid flow, which is applied in the direction of volume/mass flow, liquid/fluid solid measurement, and liquid level indicator for physical variable measurement generated by electromagnetic effects. Accurate, ultrasonic flowmeter is easily affected by external environment and other problems, to achieve the effect of strong applicability, reasonable structure, easy to use and convenient to use
Inactive Publication Date: 2020-01-14
JIXI TIANHE TECH
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Problems solved by technology
However, due to the uneven distribution of liquid flow velocity in channels and pipes, it is difficult to achieve accurate measurement results
In addition, the ultrasonic flowmeter is also vulnerable to the external environment, and the detection accuracy is difficult to guarantee
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[0009] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. A liquid flow monitoring system based on a wet capacitance liquid level sensor, including an RC oscillator A15 and an RC oscillator B11, the system also includes a wet capacitance liquid level sensor A1 and a wet capacitance liquid level sensor B6; the wet capacitance liquid sensor A1 and wet capacitive liquid level sensor B6 are respectively composed of a cylindrical outer electrode 5, a cylindrical inner electrode 4, a sealed and insulating upper end plug 8 and a sealed and insulating lower end plug 2. The cylindrical inner electrode 4 is mated and installed on the cylindrical outer electrode 5 In the cylinder cavity, the sealing and insulating upper end plug 8 is fitted on the part between the cylindrical inner electrode 4 and the upper end of the cylindrical outer electrode 5, and the sealing and insulating lower end plug 2 is fitted on the part betwe...
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The invention, which belongs to the liquid flow monitoring equipment field, discloses a liquid flow monitoring system based on a wet type capacitance liquid level sensor. The liquid flow monitoring system comprises RC oscillators A and B, wet type capacitance liquid level sensors A and B and a single-chip microcomputer microprocessor. Each of the wet type capacitance liquid level sensors A and B is respectively formed by assembling a cylindrical outer electrode, a cylindrical inner electrode, an upper sealing insulation plug and a lower sealing insulation plug. Air inlet-outlet holes and liquid inlet holes are formed in the upper sides and lower sides of the side walls of the cylindrical outer electrodes; and insulating layers are arranged on the outsides of the cylindrical inner electrodes in an inclusive manner. Analysis and calculation programs including liquid level, liquid level difference and liquid flow information are stored in a chip of the single-chip microcomputer microprocessor. According to the invention, the two wet type capacitance liquid level sensors cooperate with each other to measure the potential difference of liquid in a pipeline and a channel to calculate a flow, so that the measurement errors caused by inertia and fatigue of the traditional sensor are eliminated. The liquid flow monitoring system has characteristics of being reasonable in structure, highin application capacity, high in measurement precision and easy and convenient to use.
Description
technical field [0001] The invention belongs to liquid flow monitoring equipment, and mainly relates to a liquid flow monitoring system based on a wet capacitance liquid level sensor. Background technique [0002] At present, liquid flow is mostly detected by ultrasonic flowmeter, electromagnetic flowmeter, turbine flowmeter, dual rotor flowmeter, mass flowmeter, Pasteur tank flowmeter, etc. Most of the above-mentioned flowmeters use the principle of directly measuring the liquid flow velocity to complete the liquid flow measurement. However, due to the uneven distribution of the flow velocity of the liquid in the channels and pipes, it is difficult to achieve accurate measurement results. In addition, ultrasonic flowmeters are also susceptible to external environmental influences, and it is difficult to guarantee detection accuracy. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art ...
Claims
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Login to View More IPC IPC(8): G01F1/56G01F23/26
CPCG01F1/56G01F23/263
Inventor 宋士合朱贵臣张皓博刘兰波李金懋黄睿石金玉王德安
Owner JIXI TIANHE TECH