CN213932673U

CN213932673U - Electromagnetic flowmeter

Info

Publication number: CN213932673U
Application number: CN202120131984.2U
Authority: CN
Inventors: 莫志聪
Original assignee: Guangzhou Shunyi Automation Equipment Co Ltd
Current assignee: Guangzhou Shunyi Automation Equipment Co Ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-08-10
Anticipated expiration: 2031-01-18

Abstract

An electromagnetic flowmeter relates to the technical field of instruments; it comprises a shell, a conductive fluid channel, electrodes, a magnet exciting coil, a measuring tube, a line outlet tube and a converter; the shell in be provided with electrically conductive fluid passage, electrically conductive fluid passage's lateral wall is provided with the electrode, the outside of shell is around being equipped with excitation coil, installs the survey buret on the shell, the shell is connected with the converter through going out the spool. The electromagnetic flowmeter of the utility model is not affected by the change of fluid density, viscosity, temperature, pressure and electric rate, and the linear measuring principle can realize high-precision measurement; the measuring tube is internally provided with no flow choking piece, the pressure loss is small, the straight tube section is required to be low, the utility model has the advantages of simple structure, reasonable setting, low manufacturing cost and the like.

Description

Electromagnetic flowmeter

Technical Field

The utility model relates to an instrument technical field, concretely relates to electromagnetic flowmeter.

Background

The electromagnetic flowmeter measures the flow of conducting fluid based on the electromotive force induced when the conducting fluid passes through external magnetic field by means of electromagnetic induction principle. The method is widely applied to flow measurement and control in industrial and agricultural production process processes of petrochemical industry, ferrous metallurgy, water supply and drainage, irrigation, seawater and water treatment, environmental protection sewage measurement and control, papermaking, medicine, food and the like. The existing electromagnetic flowmeter is influenced by the change of fluid density, viscosity, temperature, pressure and electric rate, and the precision measurement is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, reasonable in design, convenient to use's electromagnetic flowmeter to prior art's defect and not enough.

In order to achieve the above object, the utility model adopts the following technical scheme: it comprises a shell, a conductive fluid channel, electrodes, a magnet exciting coil, a measuring tube, a line outlet tube and a converter; the shell in be provided with electrically conductive fluid passage, electrically conductive fluid passage's lateral wall is provided with the electrode, the outside of shell is around being equipped with excitation coil, installs the survey buret on the shell, the shell is connected with the converter through going out the spool.

After the structure is adopted, the utility model discloses the beneficial effect who produces does: the electromagnetic flowmeter of the utility model is not affected by the change of fluid density, viscosity, temperature, pressure and electric rate, and the linear measuring principle can realize high-precision measurement; the measuring tube is internally provided with no flow choking piece, the pressure loss is small, the straight tube section is required to be low, the utility model has the advantages of simple structure, reasonable setting, low manufacturing cost and the like.

Drawings

Fig. 1 is a structural view of the present invention.

Description of reference numerals:

the device comprises a shell 1, a conductive fluid channel 2, electrodes 3, a magnet exciting coil 4, a measuring pipe 5, a wire outlet pipe 6 and a converter 7.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Referring to fig. 1, the following technical solutions are adopted in the present embodiment: it comprises a shell 1, a conductive fluid channel 2, an electrode 3, a magnet exciting coil 4, a measuring tube 5, a line outlet tube 6 and a converter 7; the casing 1 in be provided with electrically conductive fluid passage 2, the lateral wall of electrically conductive fluid passage 2 is provided with electrode 3, the outside of casing 1 is around being equipped with excitation coil 4, install on the casing 1 and survey buret 5, casing 1 is connected with converter 7 through going out spool 6.

The working principle of the specific embodiment is as follows: when a conductor moves in a magnetic field, induced electromotive force is generated at two ends of the conductor in the direction vertical to the direction of the magnetic field and the movement direction; the electromagnetic flow converter provides stable exciting current for the exciting coil of the electromagnetic flow sensor on one hand, so that the magnetic induction intensity B is a constant, and the electromotive force induced by the sensor is amplified/converted into a standard current signal or a standard frequency signal, thereby facilitating the display, control and adjustment of the flow.

After adopting above-mentioned structure, this embodiment produces beneficial effect does: the electromagnetic flowmeter according to the present embodiment is not affected by changes in fluid density, viscosity, temperature, pressure, and electrical rate, and the linear measurement principle can achieve high-accuracy measurement; the measuring tube has no flow choking piece, the pressure loss is small, the requirement on the straight tube section is low, and the specific implementation mode has the advantages of simple structure, reasonable arrangement, low manufacturing cost and the like.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An electromagnetic flowmeter, characterized in that: it comprises a shell, a conductive fluid channel, electrodes, a magnet exciting coil, a measuring tube, a line outlet tube and a converter; the shell in be provided with electrically conductive fluid passage, electrically conductive fluid passage's lateral wall is provided with the electrode, the outside of shell is around being equipped with excitation coil, installs the survey buret on the shell, the shell is connected with the converter through going out the spool.