Preparation process of explosion proof type magnetostrictive liquid level meter

A magnetostrictive liquid level and preparation process technology, which is applied in the direction of buoy liquid level indicators, etc., can solve the problems of a sharp increase in the cost of magnetostrictive liquid level gauges, very high straightness requirements for waveguide wires, and expensive imported waveguide wires. , to achieve good insulation, high hardness, and reduce storage space and length requirements

CN110625338AActive Publication Date: 2019-12-31XIAN ANCN INTELLIGENT INSTR
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-12-31

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Abstract

The invention belongs to the technical field of liquid level measurement and relates to a preparation process of an explosion proof type magnetostrictive liquid level meter. The preparation process comprises the following steps: welding a waveguide wire and a feeder, welding the waveguide wire to one end of the feeder, protecting a welding spot by a heat shrinkable tube and penetrating an inner protecting tube in parallel; penetrating the inner protecting tube into a corrugated pipe, and penetrating the corrugated pipe into an outer protecting tube; welding the corrugated pipe to a steel tube,and fixedly connecting the inner protecting tube to an electronic cabin; welding the steel tube to the electronic cabin; mounting a magnetic levitation ball on the outer side of the outer protectingtube, wherein the magnetic levitation ball is spherical, forming a columnar through hole in the center of the magnetic levitation ball, and mounting magnets in the columnar through hole, wherein the magnets and the columnar through hole are concentric, and the pole N of each magnet faces inward. By changing the protecting mode of the welding pot of the waveguide wire and the feeder, deformation ofthe waveguide wire at a low temperature can be prevented effectively and a stress effect between the inner protecting tubes can be prevented effectively. By designing a mounting structure and a distributing shape of the magnets, each magnet is mounted in a manner that the pole N faces inward, so that the vibrating amplitude of a torsional wave of the waveguide wire is enhanced and the echo signalamplitude is improved.
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Description

Technical field

[0001] The invention belongs to the technical field of liquid level measurement, relates to a preparation process of a liquid level gauge, in particular to a preparation process of an explosion-proof magnetostrictive liquid level gauge. Background technique

[0002] In the flammable and explosive environment such as petroleum and natural gas exploration and petrochemical industry, the measurement of oil volume in oil tanks is mostly carried out by manually climbing the tank and measuring with a ruler. Use a metric steel tape measure with a heavy hammer or a scaled ruler to measure, manually record the readings, and manually check the meter for conversion, and finally get the oil volume data. This measurement method is not only labor intensive, but also has unsafe factors and cannot guarantee accuracy.

[0003] Several existing level gauges mainly include: ①Capacitive and diffused silicon pressure level gauges. These sensors have serious zero drift, large measuremen...

Examples

Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the drawings and embodiments:

[0029] The invention provides a preparation process of an explosion-proof magnetostrictive level gauge, which includes the following steps:

[0030] Step 1): Weld the waveguide wire 1 and the feeder line 2, weld one end of the waveguide wire 1 and the feeder line 2, and pass them into the inner protection tube 3 in parallel, and the solder joints of the waveguide wire 1 and the feeder line 2 are protected by a heat shrink tube;

[0031] Step 2): Insert the inner protective tube 3 into the corrugated tube 4, and then thread the corrugated tube 4 into the outer protective tube 5;

[0032] Step 3): The bellows 4 and the steel pipe 8 are welded, and the inner protection tube 3 and the electronic warehouse 6 are fixedly connected;

[0033] Step 4): Weld the steel pipe 8 and the electronic warehouse 6;

[0034] Step 5) Install the maglev ball 7 on the outside of the outer ...