CN217276336U

CN217276336U - Large-caliber electromagnetic flowmeter

Info

Publication number: CN217276336U
Application number: CN202220608701.3U
Authority: CN
Inventors: 张静; 唐德华
Original assignee: Tianjin Huawen Apparatus Instrument Co ltd
Current assignee: Tianjin Huawen Apparatus Instrument Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-23
Anticipated expiration: 2032-03-21

Abstract

The utility model belongs to the technical field of flowmeters, in particular to a large-caliber electromagnetic flowmeter, which comprises two flowmeter shells which are mutually clamped and fixed, wherein, flowmeter end covers are fixedly arranged at the two ends of the flowmeter shells, linings are fixedly arranged at the inner sides of the flowmeter shells and the flowmeter end covers, an excitation coil and an electrode plate are fixedly arranged between the linings and the flowmeter shells, a display is fixedly arranged on the outer side wall of the flowmeter shell, the flowmeter shell can be divided into two semi-circular arc plates with equal size by arranging the flowmeter shells, a magnetic shoe is arranged on the inner wall of the flowmeter shell, a radiating fin is arranged on the outer wall of the flowmeter shell, the heat generated by the excitation coil can be radiated by the flowmeter shell, the flowmeter shell can be conveniently dismounted, and the flowmeter shell can be dismounted to replace the excitation coil inside after the excitation coil is burnt out, more convenient, can reduce cost of maintenance.

Description

Large-caliber electromagnetic flowmeter

Technical Field

The utility model belongs to the technical field of the flowmeter, concretely relates to heavy-calibre electromagnetic flowmeter.

Background

The electromagnetic flowmeter is a novel flow measuring instrument which is rapidly developed along with the development of electronic technology in the 50-60 th of the 20 th century, and the electromagnetic flowmeter 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.

The existing electromagnetic flowmeter shell is integrated, an internal coil is always in an electrified state in the use process of the electromagnetic flowmeter, when the current passing through the coil is too large, the abnormal rise of the temperature inside the coil or a shell can be caused, the coil can be damaged in the environment with limited heat dissipation, and the whole flowmeter is scrapped, so that the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heavy-calibre electromagnetic flowmeter to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a heavy-calibre electromagnetic flowmeter, includes the fixed flowmeter casing of two mutual blocks, the both ends fixed mounting of flowmeter casing has the flowmeter end cover, the inboard fixed mounting of flowmeter casing, flowmeter end cover has the lining, fixed mounting has excitation coil and electrode slice between lining and the flowmeter casing, fixed mounting has the display on the lateral wall of flowmeter casing, the display with excitation coil, electrode slice electric connection, the fixed convex magnetic shoe that is equipped with on the inside wall of flowmeter casing, the excitation coil is around establishing on the magnetic shoe, be fixed with a plurality of fin on the lateral wall of flowmeter casing, the fin with flowmeter casing integrated into one piece.

Preferably, a flange plate is fixedly arranged at one end, far away from the flowmeter shell, of the flowmeter end cover, and screw holes which are distributed in a central symmetry mode are formed in the flange plate.

Preferably, the flowmeter end cover is close to the fixed go-between that is equipped with of one end of flowmeter casing, the edge of flowmeter casing is equipped with convex connecting strip, the connecting strip is fixed with the go-between spiro union, just the sealing washer is installed with the junction of flowmeter end cover to the flowmeter casing.

Preferably, the outer side walls of the two ends of the lining are provided with clamping grooves, and the flowmeter end cover and the flowmeter shell are clamped and installed in the clamping grooves.

Preferably, a reinforcing plate is embedded and fixed in the lining.

Preferably, the number of the flowmeter shells is two, and each flowmeter shell is a semicircular arc plate.

Preferably, two binding posts are fixedly arranged on the display, and the display is electrically connected with an external power supply through the binding posts.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a but set up the flowmeter casing of split, wherein the flowmeter casing is set up to two big semicircular arc boards such as waiting, and magnetism boots are set up on the inner wall of flowmeter casing, and the outer wall of flowmeter casing has still set up the fin, and the heat that excitation coil produced can dispel the heat through the flowmeter casing, and the flowmeter casing still conveniently dismantles, after excitation coil burns out, can unpack apart the flowmeter casing and change inside excitation coil, and is more convenient, can reduce cost of maintenance.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is the schematic structural diagram of the flow meter after the flow meter casing is removed.

In the figure: 1. a flow meter housing; 11. a connecting strip; 12. a heat sink; 13. a magnetic shoe; 2. a flow meter end cap; 21. a flange plate; 211. a screw hole; 22. a connecting ring; 3. an electrode sheet; 4. a display; 41. a binding post; 5. a liner; 501. a card slot; 51. a reinforcing plate; 6. a field coil; 7. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a heavy-calibre electromagnetic flowmeter, including two fixed flowmeter shell 1 of mutual block, flowmeter shell 1's both ends fixed mounting has flowmeter end cover 2, flowmeter shell 1, flowmeter end cover 2's inboard fixed mounting has lining 5, fixed mounting has excitation coil 6 and electrode slice 3 between lining 5 and the flowmeter shell 1, fixed mounting has display 4 on flowmeter shell 1's the lateral wall, display 4 and

excitation coil

6, 3 electric connection of electrode slice, the fixed convex magnetic shoe 13 that is equipped with on flowmeter shell 1's the inside wall, excitation coil 6 is around establishing on magnetic shoe 13, be fixed with a plurality of fin 12 on flowmeter shell 1's the lateral wall, fin 12 and flowmeter shell 1 integrated into one piece.

In this embodiment, but through setting up split flowmeter casing 1, wherein flowmeter casing 1 is set up to two equal big semicircular arc boards, flowmeter end cover 2 fixed connection through bolt and both sides, magnetic shoe 13 is set up on flowmeter casing 1's inner wall, and flowmeter casing 1's outer wall has still set up fin 12, thus, the heat that excitation coil 6 produced can effectually dispel the heat through flowmeter casing 1, accelerate the heat to scatter and disappear, in order to reduce excitation coil 6's operating temperature, and simultaneously, flowmeter casing 1 still conveniently dismantles, after excitation coil 6 burns out, can take apart flowmeter casing 1 and change inside excitation coil 6, and is more convenient, and the maintenance cost can be reduced.

Specifically, a flange 21 is fixedly arranged at one end of the flowmeter end cover 2 far away from the flowmeter shell 1, screw holes 211 which are distributed in a central symmetry manner are formed in the flange 21, a connecting ring 22 is fixedly arranged at one end of the flowmeter end cover 2 close to the flowmeter shell 1, a convex connecting strip 11 is arranged at the edge of the flowmeter shell 1, the connecting strip 11 is fixed with the connecting ring 22 in a screwing manner, and a sealing ring 7 is arranged at the joint of the flowmeter shell 1 and the flowmeter end cover 2, so that the flowmeter shell 1 and the flowmeter end cover 2 are arranged in a split manner, the flowmeter end cover 2 is connected with pipelines at two sides, the flowmeter shell 1 can be independently detached, the internal excitation coil 6 is conveniently replaced, the sealing ring 7 can play a sealing role, the connecting ring 22 on the flowmeter end cover 2 is used for being connected with the connecting strip 11 on the flowmeter shell 1, and the sealing ring 7 can be clamped between the connecting ring 22 and the connecting strip 11, the sealing performance is better.

Specifically, all seted up draw-in groove 501 on the both ends lateral wall of lining 5, flowmeter end cover 2 and the equal block of flowmeter casing 1 are installed in draw-in groove 501, so, when flowmeter end cover 2 and flowmeter casing 1 are installed in the outside of lining 5, just convenient location to the fixed position of flowmeter end cover 2 and flowmeter casing 1 in advance, and it is fixed to install bolt again, more easy to assemble.

Specifically, the inside of lining 5 is inlayed and is established and be fixed with reinforcing plate 51, and wherein lining 5 can adopt polytetrafluoroethylene, and the chemical property is stable to certain acid and alkali resistance has, and reinforcing plate 51's material can adopt stainless steel, can guarantee lining 5's intensity.

Specifically, flowmeter shell 1 symmetry sets up to two, and every flowmeter shell 1 is the semicircle board, so, two flowmeter shell 1 symmetry block alright install in the outside of lining 5, also convenient dismantlement simultaneously.

Specifically, two terminals 41 are fixedly arranged on the display 4, the display 4 is electrically connected with an external power supply through the terminals 41, the terminals 41 are used for being connected with an external power supply line to supply power to the excitation coil 6 and the electrode plates 3, so that the excitation coil 6 provides a magnetic field, and the electrode plates 3 detect the change of fluid in the magnetic field, thereby detecting the flow of the fluid.

The utility model discloses a theory of operation and use flow: when using, be connected to fluidic pipeline with the flowmeter end cover 2 at both ends in, and be connected terminal 41 and control circuit, make excitation coil 6 provide the magnetic field, electrode slice 3 detects fluidic change in the magnetic field, thereby detect out fluidic flow, so, excitation coil 6 is under operating condition, can dispel the heat through flowmeter casing 1 and surperficial fin 12, accelerate the heat to scatter and disappear, with the operating temperature who reduces excitation coil 6, and simultaneously, flowmeter casing 1 still conveniently dismantles, after excitation coil 6 burns out, can unpack flowmeter casing 1 and change inside excitation coil 6 apart, and is more convenient, and the maintenance cost can be reduced.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-caliber electromagnetic flowmeter is characterized in that: comprises two flowmeter shells (1) which are mutually clamped and fixed, flowmeter end covers (2) are fixedly arranged at two ends of each flowmeter shell (1), the inner sides of the flowmeter shell (1) and the flowmeter end cover (2) are fixedly provided with linings (5), an excitation coil (6) and an electrode plate (3) are fixedly arranged between the lining (5) and the flowmeter shell (1), a display (4) is fixedly arranged on the outer side wall of the flowmeter shell (1), the display (4) is electrically connected with the excitation coil (6) and the electrode plate (3), a convex magnetic shoe (13) is fixedly arranged on the inner side wall of the flowmeter shell (1), the magnet exciting coil (6) is wound on the magnet shoe (13), a plurality of radiating fins (12) are fixed on the outer side wall of the flowmeter shell (1), the radiating fins (12) and the flowmeter shell (1) are integrally formed.

2. A large bore electromagnetic flowmeter according to claim 1, wherein: the flowmeter is characterized in that a flange plate (21) is fixedly arranged at one end, far away from the flowmeter shell (1), of the flowmeter end cover (2), and screw holes (211) which are distributed in a central symmetry mode are formed in the flange plate (21).

3. A large bore electromagnetic flowmeter according to claim 1, wherein: flowmeter end cover (2) are close to the fixed go-between (22) that is equipped with of one end of flowmeter casing (1), the edge of flowmeter casing (1) is equipped with convex connecting strip (11), connecting strip (11) are fixed with go-between (22) spiro union, just sealing washer (7) are installed to the junction of flowmeter casing (1) and flowmeter end cover (2).

4. A large bore electromagnetic flowmeter according to claim 1 wherein: all seted up draw-in groove (501) on the both ends lateral wall of lining (5), flowmeter end cover (2) and flowmeter casing (1) are all the block and are installed in draw-in groove (501).

5. A large bore electromagnetic flowmeter according to claim 1 wherein: and a reinforcing plate (51) is embedded and fixed in the lining (5).

6. A large bore electromagnetic flowmeter according to claim 1, wherein: the flowmeter is characterized in that the flowmeter shell (1) is symmetrically arranged into two parts, and each flowmeter shell (1) is a semicircular arc plate.

7. A large bore electromagnetic flowmeter according to claim 1, wherein: two binding posts (41) are fixedly arranged on the display (4), and the display (4) is electrically connected with an external power supply through the binding posts (41).