CN210293327U

CN210293327U - High-precision electromagnetic flowmeter convenient to install

Info

Publication number: CN210293327U
Application number: CN201921481215.4U
Authority: CN
Inventors: 黄玺榕; 陈昱企; 华顺明
Original assignee: Jiangsu Leitai Automation Instrumentation Engineering Co ltd
Current assignee: Jiangsu Leitai Automation Instrumentation Engineering Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-04-10
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses an electromagnetic flowmeter that precision is high and be convenient for installation, including measuring the pipe, it is provided with the lining to measure the pipe inner wall, measure the side at the flange of the equal fixed connection in pipe both ends, both ends are provided with four door type buckles about and about the flange, door type buckle other end bulge is provided with the screw that runs through both sides, be provided with the bolt that runs through the door type buckle in the screw, measure pipe periphery about both ends be provided with two magnetic circuit relatively, it is provided with two electrodes relatively to measure the pipe both sides, measure the peripheral muffjoint of pipe mid portion has the casing, the casing top upwards extends and is connected with power and converter. The utility model discloses in, hang two door type buckles on the flange of the pipeline that needs measured flow, then all hang other door type buckles on the flange of the pipeline that needs measured flow, convenient laborsaving and can alone independent operation, be worth wideling popularize.

Description

High-precision electromagnetic flowmeter convenient to install

Technical Field

The invention relates to the technical field of electronics, in particular to an electromagnetic flowmeter which is high in precision and convenient to install.

Background

An electromagnetic flow meter (EMF) is a novel flow measuring instrument which is rapidly developed along with the development of electronic technology in the 50 th and 60 th century, the electromagnetic flow meter is an instrument which measures the flow of a conductive fluid according to the electromotive force induced when the conductive fluid passes through an external magnetic field by applying the electromagnetic induction principle, and the structure of the electromagnetic flow meter mainly comprises a magnetic circuit system, a measuring conduit, an electrode, a shell, a lining, a converter and the like.

At present, the electromagnetic flowmeter is generally installed and fixed through a plurality of groups of bolts and nuts when being installed, the bolts and the nuts are required to be carried separately, so that the installation is possibly influenced due to loss, in addition, the bolts and the nuts are required to be installed by other people when the installation, the time and the labor are wasted, and the inconvenience is also very high.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides an electromagnetic flowmeter which is high in precision and convenient to install.

In order to achieve the purpose, the invention adopts the following technical scheme: an electromagnetic flowmeter with high precision and convenient installation comprises a measuring conduit, wherein the inner wall of the measuring conduit is provided with a lining, two ends of the measuring conduit are fixedly connected to the side surface of a flange, the upper end, the lower end, the left end and the right end of the flange are provided with four door-shaped buckles, the contact part of the door-shaped buckles and the flange is provided with a first buffer layer, two ends of the door-shaped buckles protrude towards the center direction of the flange, the protruding part of one end is rotatably connected to the side surface of the flange connected with the measuring conduit through a hinge, the protruding part of the other end of the door-shaped buckles is provided with screw holes penetrating through two sides, the screw holes are internally provided with bolts penetrating through the door-shaped buckles, the bolts penetrate through the door-shaped buckles and are fixedly connected to the side surface of a fastening block towards the direction of the flange, the other, the measuring device comprises a measuring guide pipe, a lining, a magnetic circuit system, electrodes, a power supply and a converter, wherein two electrodes are oppositely arranged on two sides of the measuring guide pipe, the electrodes penetrate through the measuring guide pipe and the lining, one inward end surface of each electrode is flush with the inner surface of the lining, the periphery of the middle part of the measuring guide pipe is connected with a shell in a sleeved mode, the magnetic circuit system and the electrodes are wrapped between the shell and the measuring guide pipe, the top of the shell extends upwards and is connected with the power supply and the converter, power transmission cables are arranged between the magnetic circuit.

As a further description of the above technical solution:

the periphery of the lining is tightly attached to the inner wall of the measuring conduit and is made of corrosion-resistant insulating materials, and a sealing gasket is arranged at the joint of the electrode and the inner surface of the lining.

As a further description of the above technical solution:

the radius of the flange is larger than that of the measuring conduit, and the centers of the flange and the measuring conduit are on the same line.

As a further description of the above technical solution:

the middle part of the door-shaped buckle is arc-shaped, clings to the outer edge of the flange and is arc-shaped chamfer angles at the contact positions with the inner side of the flange.

As a further description of the above technical solution:

the bolt is provided with threads corresponding to the screw holes, and the outer end of the bolt protrudes out of the bolt and the diameter of the fastening block.

As a further description of the above technical solution:

insulating layers are wrapped on the surfaces of the power transmission cable and the signal cable in the shell.

The invention has the following beneficial effects:

this experiment is novel, at first put down two door type buckles on the flange of both ends, it is inboard all to pull back other door type buckles, then hang two door type buckles on the flange of the pipeline that needs measured flow, then all hang other door type buckles on the flange of the pipeline that needs measured flow, make the outside of the second buffer layer subsides the flange that needs measured flow's pipeline on all the fastening blocks, screw up the bolt, can easily fix the device on the pipeline that needs measured flow, it is convenient laborsaving and can alone independent operation, be worth wideling popularize.

Drawings

FIG. 1 is a side view of an electromagnetic flowmeter of the present invention with high accuracy and ease of installation;

FIG. 2 is a front view of an electromagnetic flowmeter of the present invention with high accuracy and ease of installation;

FIG. 3 is an enlarged view taken at A in FIG. 1;

fig. 4 is an enlarged view at B in fig. 1.

Illustration of the drawings:

1. a measurement catheter; 2. a flange; 3. a liner; 4. a door-shaped buckle; 5. a magnetic circuit system; 6. a power transmission cable; 7. a converter; 8. a signal cable; 9. a housing; 10. an electrode; 11. a power source; 12. a hinge; 13. a first buffer layer; 14. a screw hole; 15. a bolt; 16. a fastening block; 17. a second buffer layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: an electromagnetic flowmeter with high precision and convenient installation comprises a measuring conduit 1, wherein a lining 3 is arranged on the inner wall of the measuring conduit 1, two ends of the measuring conduit 1 are fixedly connected to the side surface of a flange 2, four door-shaped buckles 4 are arranged at the upper end, the lower end, the left end and the right end of the flange 2, the contact part of each door-shaped buckle 4 and the flange 2 is provided with a first buffer layer 13, two ends of each door-shaped buckle 4 protrude towards the center direction of the flange 2, the protruding part at one end is rotatably connected to the side surface of the flange 2 connected with the measuring conduit 1 through a hinge 12, the door-shaped buckle 4 can rotate inside and outside the flange 2 by taking the hinge 12 as the center, the protruding part at the other end of the door-shaped buckle 4 is provided with a screw hole 14 penetrating through two sides, a bolt 15 penetrating through the door-shaped buckle 4 is arranged in the screw hole 14, the bolt, the other side of the fastening block 16 is provided with a second buffer layer 17, the second buffer layer 17 is contacted with a pipeline flange 2 needing to measure the flow, two magnetic circuit systems 5 are oppositely arranged at the upper end and the lower end of the periphery of the measuring conduit 1 and are used for emitting an alternating electromagnetic field, two electrodes 10 are oppositely arranged at two sides of the measuring conduit 1 and are used for receiving potential signals, one end surface of the electrode 10 penetrating through the measuring conduit 1 and the lining 3 and facing inwards is flush with the inner surface of the lining 3, so that the flow of liquid in the measuring conduit 1 is not influenced, the periphery of the middle part of the measuring conduit 1 is sleeved with a shell 9, the magnetic circuit systems 5 and the electrodes 10 are wrapped between the shell 9 and the measuring conduit 1, the top of the shell 9 extends upwards and is connected with a power supply 11 and a converter 7, the power supply 11 can output alternating current, the converter 7 receives weak signals returned by the electrodes 10 and, a signal cable 8 is provided between the electrode 10 and the transducer 7 in the housing 9.

The periphery of the lining 3 is tightly attached to the inner wall of the measuring conduit 1 and is made of corrosion-resistant insulating material, a sealing gasket is arranged at the joint of the electrode 10 and the inner surface of the lining 3 to ensure the air tightness of the lining 3, the radius of the flange 2 is larger than that of the measuring conduit 1, the centers of the flange 2 and the measuring conduit 1 are all on the same line, the middle part of the door-shaped buckle 4 is in an arc shape and is tightly attached to the outer edge of the flange 2, and the contact, so that the door-shaped buckle 4 can be tightly connected with the flange 2 to ensure stability, in addition, the bolt 15 is provided with a thread corresponding to the screw hole 14, the diameter of the convex part of the outer end of the bolt 15 and the diameter of the fastening block 16 are both larger than the diameter of the screw hole 14, thus, the bolt 15 can be restrained in the screw hole 14 without falling off, and the surfaces of the transmission cable 6 and the signal cable 8 in the housing 9 are covered with the insulating layers, so that the transmission cable 6 and the signal cable 8 are intertwined without short-circuiting.

The working principle is as follows: firstly, the door-shaped buckles 4 at the top ends of the flanges 2 at two sides of the measuring conduit 1 are put down, and other door-shaped buckles 4 are all pulled back to one side where the flange 2 is connected with the measuring conduit 1, the two door-shaped buckles 4 at the top ends of the flanges 2 are hung on the pipeline flange 2 needing to measure the flow, then other door-shaped buckles 4 are all put down and clamped on the pipeline flange 2 needing to measure the flow, the second buffer layer 17 is tightly attached to the outer side of the pipeline flange 2 needing to measure the flow, the bolts 15 are screwed, the fastening block 16 tightly fixes the pipeline flange 2 needing to measure the flow, and thus the door-shaped buckles 4 tightly clamp the two flanges 2, and then the liquid can flow through the measuring conduit 1 to measure the flow.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a high and electromagnetic flowmeter convenient to installation of precision, includes measuring pipe (1), its characterized in that: the inner wall of the measuring conduit (1) is provided with a lining (3), the two ends of the measuring conduit (1) are fixedly connected to the side surface of the flange (2), the upper end, the lower end, the left end and the right end of the flange (2) are provided with four door-shaped buckles (4), the contact parts of the door-shaped buckles (4) and the flange (2) are provided with first buffer layers (13), the two ends of the door-shaped buckles (4) protrude towards the center direction of the flange (2), the protruding part of one end is rotatably connected to the side surface of the flange (2) connected with the measuring conduit (1) through hinges (12), the protruding part of the other end of the door-shaped buckle (4) is provided with screw holes (14) penetrating through the two sides, bolts (15) penetrating through the door-shaped buckles (4) are arranged in the screw holes (14), and the bolts (15) penetrate through the door-shaped buckles (4) and are fixedly, a second buffer layer (17) is arranged on the other side of the fastening block (16), two magnetic circuit systems (5) are oppositely arranged at the upper end and the lower end of the periphery of the measuring guide pipe (1), two electrodes (10) are oppositely arranged on two sides of the measuring conduit (1), one inward end surface of each electrode (10) penetrating through the measuring conduit (1) and the lining (3) is flush with the inner surface of the lining (3), the periphery of the middle part of the measuring conduit (1) is sleeved with a shell (9), a magnetic circuit system (5) and an electrode (10) are wrapped between the shell (9) and the measuring guide pipe (1), the top of the shell (9) extends upwards and is connected with a power supply (11) and a converter (7), a power transmission cable (6) is arranged between the magnetic circuit system (5) in the shell (9) and the power supply (11), and signal cables (8) are arranged between the inner electrode (10) of the shell (9) and the converter (7).

2. An electromagnetic flowmeter of claim 1 that is highly accurate and easy to install, wherein: the periphery of the lining (3) is tightly attached to the inner wall of the measuring conduit (1) and is made of an anti-corrosion insulating material, and a sealing gasket is arranged at the joint of the electrode (10) and the inner surface of the lining (3).

3. An electromagnetic flowmeter of claim 1 that is highly accurate and easy to install, wherein: the radius of the flange (2) is larger than that of the measuring conduit (1), and the centers of the flange and the measuring conduit are on the same line.

4. An electromagnetic flowmeter of claim 1 that is highly accurate and easy to install, wherein: the middle part of the door-shaped buckle (4) is arc-shaped, clings to the outer edge of the flange (2) and is arc-shaped chamfer angles at the contact positions with the inner side of the flange (2).

5. An electromagnetic flowmeter of claim 1 that is highly accurate and easy to install, wherein: the bolt (15) is provided with threads corresponding to the screw holes (14), and the diameter of the protruding part at the outer end of the bolt (15) and the diameter of the fastening block (16) are larger than that of the screw holes (14).

6. An electromagnetic flowmeter of claim 1 that is highly accurate and easy to install, wherein: insulating layers are wrapped on the surfaces of the power transmission cable (6) and the signal cable (8) in the shell (9).