Detection unit of liquid level transducer

Abstract

The invention relates to a detecting unit for a liquid level transmitter. The detecting unit comprises an accommodating chamber and a differential pressure sensor, and is characterized in that one end of the accommodating chamber is provided with a connecting hole; a diaphragm is welded with a diaphragm seat; a capillary tube passes through a connecting sleeve, and the capillary tube and the connecting sleeve are welded with the diaphragm seat respectively in turn; a connecting disc passes through the capillary tube and is connected with the other end of the connecting sleeve, and the connecting sleeve and the capillary tube are welded with one end of the connecting disc in turn; the other end of the connecting disc passes through a flange and the connecting hole and is welded with one end of a connecting seat of which the other end is welded with the differential pressure sensor; and the accommodating chamber is fixed with the differential pressure sensor. The detecting unit has the advantages that the diaphragm of the detecting unit is parallel to the direction of the accommodating chamber which clamps the differential pressure sensor; when the detecting unit is arranged on a container, a display unit panel of the liquid level transmitter is perpendicularly displayed upwards, so that reading is convenient on the spot; the detecting unit is convenient to be assembled and debugged on the spot and has human-oriented design, long service life and high reliability; and the number of connecting gaps is reduced, so that the stability of the transmitter is improved.

Description

technical field [0001] The invention relates to a transmitter, in particular to a detection unit of a liquid level transmitter. Background technique [0002] The diaphragm of the detection unit of the current liquid level transmitter is vertical to the chamber where the differential pressure sensor is clamped. When it is installed on the container, the display unit panel of the liquid level transmitter will be displayed upwards, which will cause certain difficulties for on-site reading. On-site installation and commissioning personnel need to turn their bodies sideways when reading, which causes inconvenience to the work, and the design of the instrument is not humanized enough; the connection method of the detection unit of the liquid level transmitter is partially welded and sealed with rubber rings or threads, so the structure Compact, the rubber ring is easy to wear, the thread is easy to loose, and the sealing is poor, which affects the service life of the liquid level ...

AI Technical Summary

Problems solved by technology

[0002] The diaphragm of the detection unit of the current liquid level transmitter is vertical to the chamber where the differential pressure sensor is clamped. When it is installed on the container, the display unit panel of the liquid level transmitter will be displayed upwards, which will cause certain difficulties for on-site reading. On-site installation and commissioning personnel need to turn their bodies sideways when reading, which causes inconvenience to the work, and the design of the instrument is not humanized enough; the connection method of the detection unit of the liquid level transmitter is partially welded and sealed with rubber rings or threads, so the structure Compact, the rubber ring is easy to wear, the thread is easy to loose, and the sealing is poor, which affects the service life of the liquid level transmitter detection unit and deteriorates the reliability of the liquid level transmitter detection unit

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