Lifting type magnetostriction displacement transmitter

Abstract

The invention relates to a lifting type magnetostriction displacement transmitter and belongs to the technical field of magnetostriction displacement transmitters. The magnetostriction displacement transmitter comprises a magnetostriction body with the hollow interior, a fixed bracket is fixedly arranged on the outer wall of the magnetostriction body; an electronic watch head is arranged at the end part of the magnetostriction body; a waveguide tube is fixedly arranged in the magnetostriction body; the waveguide tube is arranged along the length of the magnetostriction body; one end of the waveguide tube penetrates through the magnetostriction body and is fixedly connected with the electronic watch head; the outer wall of the waveguide tube is annularly sleeved with a piston sleeve; magnetic steel is fixedly arranged at the end, located in the magnetostriction body, of the piston sleeve. The other end of the piston sleeve is positioned outside the magnetostriction body; the piston sleeve slides in the length direction of the waveguide tube, a flat sealing cover body is arranged at the end, away from the electronic gauge outfit, of the magnetostriction body in a threaded mode, the piston sleeve is sleeved with the flat sealing cover body in a surrounding mode, and the flat sealing cover body abuts against the outer wall of the piston sleeve, and the effects of reducing the influence of condensate water on magnetic steel displacement and guaranteeing real-time monitoring of gas injection tree displacement change are achieved.

Description

technical field [0001] The invention relates to the technical field of magnetostrictive displacement transmitters, in particular to a lift-type magnetostrictive displacement transmitter. Background technique [0002] At present, in the early stage of production of offshore oil production platforms, due to the viscous state of the underground oil reservoir, it is impossible to rely on ground pressure or pumps for exploitation. Therefore, the high-temperature steam at 357°C can only be injected into the underground oil reservoir to reduce its viscosity and inject gas. 1~2 weeks, keep warm for 2 weeks, and then pump oil with electric submersible pump. During gas injection, due to the high temperature or pressure of the steam, the gas injection tree and the pipeline will be pushed to move, and a large movement will cause serious mechanical damage to the gas injection tree. At this time, the gas injection tree is monitored in real time through the magnetostrictive displacement tr...

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Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: in cold weather, the above-mentioned device is fixed on the gas injection tree, and it is easy to generate condensed water, which eventually leads to freezing, causing the magnetic steel to not move normally, and affecting the real-time monitoring of the displacement change of the gas injection tree

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