Water level redundancy measuring device
A measuring device and redundant technology, applied in the liquid level indicator of physical variable measurement, and the display of liquid level indicator through pressure measurement. And other issues
Active Publication Date: 2013-12-11
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0004] There are two common failures of the submersible water level sensor. One is that the silt or other dirt deposited at the bottom of the reservoir is easy to block the diversion hole of the sensor head, resulting in measurement failure.
The second is that after a long period of use, the sealing performance of the sensor decreases, and water ingress occurs inside the sensor, which may cause measurement failure, or cause damage to the transmitter and smart meter
Method used
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Embodiment approach 1
[0018] Attached below figure 1 And attached figure 2 Further explain the application of a water level redundant measuring device of the present invention on the water storage tank, and the working principle of the measuring and control process of the present invention.
[0019] According to attached figure 1 Assemble the upper part of the housing 1, the lower part of the housing 2, the hollow plug 3, the pressure sensitive device 4, the cable 5, the spherical sealing ring 6, the upper annular sealing ring 7, the lower annular sealing ring 8 and the variable capacitor 10 into an integrated sensor , tighten the lower part 2 of the housing and the hollow plug 3 to promote the deformation of the spherical sealing ring 6, the upper annular sealing ring 7 and the lower annular sealing ring 8, and ensure the airtightness of the middle cavity of the upper part 1 of the integrated sensor housing. Ensure that the airway 9 is unimpeded with the atmosphere. After the assembly is compl...
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The invention provides a water level redundancy measuring device and belongs to the technical field of measurement. The water level redundancy measuring device is characterized in that the device is a device for measuring the same water level in two measuring modes simultaneously, wherein the two measuring modes have redundancy relation. The complete device can detect the same water level in the two measuring modes of differential pressure and capacitance. A sensor part consists of a casing upper portion 1, a casing lower portion 2, a hollow screwed plug 3, a pressure sensing device 4, a cable 5, a spherical sealing ring 6, an upper annular sealing ring 7, a lower annular sealing ring 8 and a variable capacitor 10. The largest characteristic of the water level redundancy measuring device is that after one measuring mode fails, the other measuring mode can be automatically converted, and the normal work of the measuring device is not affected. The water level redundancy measuring device is suitable for various important occasions with strict requirements for water level measurement and has the advantages of being high in reliability, compact in structure, convenient to install and the like.
Description
technical field [0001] The invention relates to a redundant measuring device for water level, which belongs to the technical field of measurement, and specifically relates to a measuring device with a dual-functional integrated structure in which the sensor is designed as two measuring modes of differential pressure signal and capacitance signal, and the two measuring modes are redundant relation. The biggest feature is that after one of the measurement methods fails, the device will automatically switch to another measurement method without affecting the normal operation of the measurement device. It is suitable for various important occasions that have strict requirements on water level measurement, and has the advantages of high reliability, compact structure, and convenient installation. Background technique [0002] Water level monitoring technology has been widely used in various fields such as industrial and agricultural production and life, and plays an important ro...
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IPC IPC(8): G01F23/14G01F23/26
Inventor 靳宝全高妍张红娟田振东王清琳
Owner TAIYUAN UNIV OF TECH