Underground long-acting electromagnetic flowmeter for water well separate injection network

Abstract

The invention relates to the technical field of electromagnetic flowmeters, in particular to an underground long-acting electromagnetic flowmeter for a well separate injection network. The flowmeter comprises a measuring pipe, a mounting pipe is arranged on the outer side of the measuring pipe; a rotating block is rotationally connected to the inner side of the mounting pipe at the top end; the inner side of the rotating block is fixedly connected with a first threaded rod; a second threaded rod is arranged on the inner side of the mounting pipe at the bottom end; the inner side of the secondthreaded rod is fixedly connected with a first electrode; a third threaded rod is fixedly connected to the inner side of the mounting pipe at the top end; the inner side of the third threaded rod is slidably connected with a second electrode. The top end of the third threaded rod is fixedly connected with a rotary drum; the top end of the rotary drum is rotationally connected with a mounting plate. According to the flowmeter, with the arrangement of the mounting pipe, the rotating block, the first threaded rod, the first electrode and the third threaded rod, the convenience of device assemblyis improved, time and labor are saved, the device mounting efficiency is improved, downhole operation is facilitated, the device is fixed stably, and the use safety of the device is improved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic flowmeters, in particular to an underground long-acting electromagnetic flowmeter for water well distribution network. Background technique [0002] Electromagnetic flowmeter is a new type of flow measuring instrument developed rapidly with the development of electronic technology in the 1950s and 1960s. Electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field, because the measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity. There are no obstructing flow parts in the pipe, no pressure loss, and low requirements for straight pipe sections. It has unique adaptability to slurry measurement. Therefore, the demand for a long-term downhole long-term el...

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Problems solved by technology

[0003] Most of the downhole long-term electromagnetic flowmeters for water well distribution network existing on the market are inconvenient to assemble. The traditional downhole long-term electromagnetic flowmeters for water well distribution network are inconvenient to install when in use, and the operation is troublesome. It is convenient to carry out downhole operations, and the traditional downhole long-term electromagnetic flowmeter for water well separate injection network is inconvenient to use, has low space adaptability, and is inconvenient to adjust. Therefore, a long-term downhole long-term electromagnetic flowmeter for water well separate injection network is proposed to solve the above problems

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