CN219736458U - Electromagnetic flowmeter - Google Patents

Abstract

The utility model provides an electromagnetic flowmeter, includes pipe, lining, electrode, the lining cover is located in the pipe, the side arm of pipe is equipped with two first through-holes of installation electrode, two first through-holes are the symmetry setting with the center pin of pipe as the symmetry axle, the lining is equipped with the second through-hole that corresponds with the first through-hole that the pipe set up, the electrode is equipped with two, two the electrode runs through two sets of first through-holes and second through-hole setting respectively, the junction of electrode and lining is equipped with insulating sleeve, two the electrode extends to the outside part of pipe and all overlaps and is equipped with the coil, installs the electrode in the lining both sides, seals its lid through insulating sleeve, constitutes smooth surface in the lining is inside, reduces the influence of sensor throttle, and outside the sleeve pipe is all located to members such as coil simultaneously, has improved the wholeness of structure.

Description

Electromagnetic flowmeter

Technical Field

The utility model relates to the technical field of electromagnetic flow meters, in particular to an electromagnetic flow meter.

Background

Electromagnetic flow meters (Electromagnetic Flowmeters, EMF for short) are new flow meters that have rapidly evolved with the development of electronics in the 50-60 th century. An electromagnetic flowmeter is an instrument which applies the principle of electromagnetic induction and measures the flow of conductive fluid according to the electromotive force induced when the conductive fluid passes through an externally applied magnetic field.

However, partial electromagnetic flowmeters in the prior art have the problems of sensor throttling, poor integrity, non-compact structure and the like.

Disclosure of Invention

In view of the shortcomings of the background technology, the utility model relates to an electromagnetic flowmeter, electrodes are arranged on two sides of a lining, the electrodes are covered by insulating sleeves, a smooth surface is formed inside the lining, the influence of sensor throttling is reduced, and meanwhile, components such as coils and the like are arranged outside a sleeve, so that the structural integrity is improved.

The utility model relates to an electromagnetic flowmeter, which comprises a conduit, a lining and electrodes, wherein the lining is sleeved in the conduit, two first through holes for installing the electrodes are arranged on side arms of the conduit, the two first through holes are symmetrically arranged by taking a central axis of the conduit as a symmetrical axis, the lining is provided with second through holes corresponding to the first through holes arranged on the conduit, the two electrodes are respectively arranged through the two groups of first through holes and the second through holes, an insulating sleeve is arranged at the joint of the electrodes and the lining, and coils are sleeved on the parts of the two electrodes extending out of the conduit.

Furthermore, the two ends of the lining are provided with turned edges, two flange plates are sleeved between the turned edges, the two first through holes are provided with side plates and wrapping plates, and the side plates and the wrapping plates enclose to form a cavity.

Further, an explosion-proof joint is arranged at the wrapping plate outside one electrode, the tail ends of the electrodes are connected with connector lugs, the coil and the connector extend to the outside of the electromagnetic flowmeter through wires passing through the inside of the explosion-proof joint, and the parts of the wires inside the explosion-proof joint are provided with organic silicon packages.

Further, the lining is made of polytetrafluoroethylene materials.

Further, the two parts of the electrodes extending out of the catheter are sequentially sleeved with a positioning sleeve, a check ring, a fixing piece gasket and a nut, the positioning sleeve is attached to the outer wall of the sleeve, and the electrodes are provided with threads in threaded connection with the nut.

Furthermore, a compression fixed check ring and a spring check ring are arranged in the explosion-proof joint.

Further, the flange plate is provided with a grounding pile mounting hole.

Further, the insulating sleeve is made of polytetrafluoroethylene materials.

The utility model has the main beneficial effects that:

the electrode and the coil are pre-buried, so that the sensor structure is simplified, key parts of the sensor are integrated, the structure is compact, the compactness is good, the weight and the size are greatly reduced, the sensor can be directly arranged on a pipeline without support, and the sensor is beneficial to maintenance and maintenance in severe environments such as environmental protection, oil fields and the like. In the performance of the electric appliance, the lining and the insulating sleeve are made of polytetrafluoroethylene materials, and no metal parts exist in the alternating magnetic field, so that eddy current is not generated, and the signal to noise ratio is improved. Due to interference attenuation, the linearity of signal conversion is improved, and thus the metering accuracy is also improved.

Drawings

FIG. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model.

Reference numerals: 1. a conduit; 2. a liner; 21. flanging; 3. a flange plate; 31. a ground pile mounting hole; 4. an insulating sleeve; 5. an electrode; 6. a positioning sleeve; 7. a retainer ring; 8. a fastener washer; 9. a nut; 10. a connector lug; 11. a side plate; 12. a coil; 13. wrapping the plate; 14. an explosion-proof joint; 15. compressing the fixed retainer ring; 16. a spring retainer ring; 17. and (5) packaging the organic silicon.

Detailed Description

The following description and the discussion of the embodiments of the present utility model will be made more complete and less in view of the accompanying drawings, in which it is to be understood that the utility model is not limited to the embodiments of the utility model disclosed and that it is intended to cover all such modifications as fall within the scope of the utility model.

For the purpose of facilitating an understanding of the embodiments of the present utility model, reference will now be made to the drawings, by way of example, of specific embodiments, and the various embodiments should not be construed to limit the embodiments of the utility model.

Embodiment 1 of the present utility model is shown with reference to fig. 1, and relates to an electromagnetic flowmeter, which comprises a conduit 1, a liner 2 and an electrode 5, wherein the liner 2 is sleeved in the conduit 1, the liner 2 is made of polytetrafluoroethylene material, two first through holes for installing the electrode 5 are arranged on side arms of the conduit 1, the two first through holes are symmetrically arranged by taking a central axis of the conduit 1 as a symmetry axis, the liner 2 is provided with a second through hole corresponding to the first through hole arranged on the conduit 1, the electrode 5 is provided with two electrodes 5 respectively penetrating through the two groups of first through holes and the second through holes, an insulating sleeve 4 is arranged at a joint of the electrode 5 and the liner 2, the insulating sleeve 4 is made of polytetrafluoroethylene material, and coils 12 are sleeved on portions of the two electrodes 5 extending out of the conduit 1.

The two ends of the lining 2 are provided with flanges 21, two flanges 3 are sleeved between the flanges 21, two side plates 11 and a wrapping plate 13 are arranged at the first through holes, and the side plates 11 and the wrapping plate 13 form a cavity in a surrounding mode.

An explosion-proof joint 14 is arranged at the wrapping plate 13 outside one electrode 5, the tail ends of the electrodes 5 are connected with connector lugs 10, the coil 12 and the connector lugs extend to the outside of the electromagnetic flowmeter through wires passing through the inside of the explosion-proof joint 14, and the parts of the wires inside the explosion-proof joint 14 are provided with organosilicon packages 17.

The two parts of the electrode 5 extending out of the catheter 1 are sequentially sleeved with a positioning sleeve 6, a retainer ring 7, a fixing piece gasket 8 and a nut 9, the positioning sleeve 6 is attached to the outer wall of the sleeve, and the electrode 5 is provided with threads connected with the nut 9 in a threaded manner.

The explosion-proof joint 14 is internally provided with a compression fixed retainer 157 and a spring retainer 167.

The flange plate 3 is provided with a ground pile mounting hole 31.

The utility model has the main beneficial effects that:

the electrode 5 and the coil 12 are pre-buried, so that the sensor structure is simplified, key parts of the sensor are integrated, the structure is compact, the compactness is good, the weight and the size are greatly reduced, the sensor can be directly arranged on a pipeline without support, and the sensor is beneficial to maintenance and repair in severe environments such as environmental protection, oil fields and the like. In the aspect of electrical performance, the lining 2 and the insulating sleeve 4 are made of polytetrafluoroethylene materials, and no metal parts exist in the alternating magnetic field, so that eddy currents are not generated, and the signal to noise ratio is improved. Due to interference attenuation, the linearity of signal conversion is improved, and thus the metering accuracy is also improved.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (8)

1. An electromagnetic flowmeter, characterized in that: including pipe (1), lining (2), electrode (5), in pipe (1) is located to lining (2) cover, the side arm of pipe (1) is equipped with two first through-holes of installation electrode (5), two first through-hole is the symmetry setting with the center pin of pipe (1) as the symmetry axis, lining (2) are equipped with the second through-hole that corresponds with the first through-hole that pipe (1) set up, electrode (5) are equipped with two, two electrode (5) run through two sets of first through-holes and second through-hole setting respectively, the junction of electrode (5) and lining (2) is equipped with insulating cover (4), two electrode (5) extend to the outside part of pipe (1) and all overlap and be equipped with coil (12).

2. An electromagnetic flowmeter according to claim 1, wherein: the lining is characterized in that flanges (21) are arranged at two ends of the lining (2), two flanges (3) are sleeved between the flanges (21), side plates (11) and a wrapping plate (13) are arranged at two first through holes, and the side plates (11) and the wrapping plate (13) are surrounded to form a cavity.

3. An electromagnetic flowmeter according to claim 2, wherein: one of them the outside package board (13) department of electrode (5) is equipped with explosion-proof joint (14), the end of electrode (5) all is connected with connector lug (10), coil (12) and connector pass through explosion-proof joint (14) inside extension to the electromagnetic flowmeter outside through the wire, the wire is equipped with organosilicon encapsulation (17) in the inside part of explosion-proof joint (14).

4. An electromagnetic flowmeter according to claim 1, wherein: the lining (2) is made of polytetrafluoroethylene material.

5. An electromagnetic flowmeter according to claim 3, wherein: the two parts of the electrode (5) extending to the outside of the catheter (1) are sequentially sleeved with a positioning sleeve (6), a retainer ring (7), a fixing piece gasket (8) and a nut (9), the positioning sleeve (6) is attached to the outer wall of the sleeve, and the electrode (5) is provided with threads in threaded connection with the nut (9).

6. An electromagnetic flowmeter according to claim 3, wherein: and a compression fixed check ring (15) and a spring check ring (16) are arranged in the explosion-proof joint (14).

7. An electromagnetic flowmeter according to claim 2, wherein: the flange plate (3) is provided with a grounding pile mounting hole (31).

8. An electromagnetic flowmeter according to claim 1, wherein: the insulating sleeve (4) is made of polytetrafluoroethylene materials.