Electromagnetic flowmeter sensor structure

Abstract

The utility model discloses an electromagnetic flowmeter sensor structure which comprises a connector, a connecting plate, a sealing ring, a measuring tube, an electrode, a magnetic circuit system and a shell. One end of the connector is welded to the connecting plate, the other end of the connector is connected with a user pipeline, one end of the connecting plate is welded to the connector, the other end of the connecting plate is connected with the measuring pipe through internal threads, the sealing ring is installed between the connecting plate and the measuring pipe, and the two ends of the measuring pipe are connected with the connecting plate through external threads. The electrodes are symmetrically arranged at the front and back positions in the middle of the measuring tube, and the magnetic circuit systems are symmetrically arranged at the upper and lower positions in the middle of the measuring tube and are vertical to the electrodes. The device solves the problem that an insulating lining needs to be installed in a measuring tube of a traditional electromagnetic flowmeter, so that the machining period of the electromagnetic flowmeter is shortened, and the sensor structure is easy and convenient to assemble and stable in performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, and particularly to a sensor structure of an electromagnetic flowmeter. Background Technique

[0002] The working principle on which the electromagnetic flowmeter is based is Faraday's law of electromagnetic induction. When a conductive fluid flows through the sensor and makes a movement of cutting magnetic force lines, an induced electromotive force will be generated, which is taken by the electrodes in the measured pipe, thereby obtaining the flow rate.

[0003] The existing traditional electromagnetic flowmeter sensors have the following defects:

[0004] For the existing traditional electromagnetic flowmeter sensors, austenitic stainless steel is basically selected as the measuring pipe, and according to different measuring media, corresponding insulating materials are selected as the lining in the measuring pipe. The manufacturing process is relatively complex, and the processing cycle is also relatively long. Therefore, a solution needs to be given. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a sensor structure of an electromagnetic flowmeter to solve the problems raised in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model is realized through the following technical solutions: A sensor structure of an electromagnetic flowmeter includes a connector, a connecting plate, a sealing ring, a measuring pipe, electrodes, a magnetic circuit system and a housing; one end of the connector is welded to the connecting plate, and the other end is connected to the user pipeline. One end of the connecting plate is welded to the connector, and the other end is connected to the measuring pipe through an internal thread. The sealing ring is installed between the connecting plate and the measuring pipe. The two ends of the measuring pipe are connected to the connecting plate through external threads. The electrodes are symmetrically installed at the front and rear positions in the middle of the measuring pipe. The magnetic circuit system is symmetrically installed at the upper and lower positions in the middle of the measuring pipe and is perpendicular to the electrode positions.

[0009] Preferably, the measuring pipe is processed from an insulating material. Threads are provided at both ends of the measuring pipe, and the outer diameter of the threads is lower than the outer diameter of the measuring pipe.

[0010] Preferably, the housing is welded to the outer circle of the connecting plate.

[0011] (3) Beneficial Effects

[0012] The utility model provides a sensor structure of an electromagnetic flowmeter. The following beneficial effects are achieved:

[0013] The structure of this electromagnetic flowmeter sensor uses a measuring tube directly processed from insulating material without the need for additional lining treatment. Connecting plates with connectors welded on are directly screwed onto both ends of the measuring tube. A sealing ring is used to seal between the measuring tube and the connecting plates. Finally, the left and right connecting plates and the measuring tube are welded together by a housing, making it impossible to loosen. Additionally, the connectors at both ends can be welded in corresponding connection modes according to user requirements. This solves the problem that an insulating lining must be installed inside the measuring tube of traditional electromagnetic flowmeters, reduces the processing cycle of electromagnetic flowmeters, and the sensor structure is easy to assemble and has stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic structural diagram of the whole of the present utility model.

[0015] In the figure, 1, connector; 2, connecting plate; 3, sealing ring; 4, measuring tube; 5, electrode; 6, magnetic circuit system; 7, housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figure 1 , an embodiment of the present utility model provides a technical solution: a structure of an electromagnetic flowmeter sensor, characterized in that it includes a connector 1, a connecting plate 2, a sealing ring 3, a measuring tube 4, an electrode 5, a magnetic circuit system 6, and a housing 7;

[0018] The problem solved is that one end of the connector 1 is welded to the connecting plate 2, and the other end is connected to the user pipeline. One end of the connecting plate 2 is welded to the connector 1, and the other end is connected to the measuring tube 4 through internal threads. The sealing ring 3 is installed between the connecting plate 2 and the measuring tube 4. Both ends of the measuring tube 4 are connected to the connecting plate 2 through external threads. The electrodes 5 are symmetrically installed at the front and rear positions in the middle of the measuring tube 4. The magnetic circuit system 6 is symmetrically installed at the upper and lower positions in the middle of the measuring tube 4 and is perpendicular to the position of the electrodes 5.

[0019] Further, the measuring tube 4 is made of insulating material. Threads are provided at both ends of the measuring tube 4, and the outer diameter of the threads is lower than the outer diameter of the measuring tube 4. The measuring tube 4 itself is made of insulating material and has a certain strength to withstand fluids under a certain pressure. Threads are provided at both ends of the measuring tube 4, and the outer diameter of the threads is lower than the outer diameter of the measuring tube 4, forming a plane for installing the sealing ring 3, thus solving the problem that an insulating lining must be installed inside the measuring tube of a traditional electromagnetic flowmeter, and reducing the processing cycle of the electromagnetic flowmeter.

[0020] Effectively, one end of the connecting plate 2 is welded with a connector 1, and the other end is provided with an internal thread corresponding to the external thread of the measuring tube 4. The connecting plate 2 is symmetrically installed at the left and right ends of the measuring tube 4 and presses the sealing ring 3 to ensure the seal between the connecting plate 2 and the measuring tube 4.

[0021] Differently, the outer shell 7 is welded to the outer circle of the connecting plate 2. The outer shell 7 is welded to the outer circles of two connecting plates 2, making the left and right connecting plates 2 and the measuring tube 4 into a whole, and they cannot move relative to each other, resulting in the loosening of the sealing ring 3. In addition, the connecting heads at both ends can be welded with corresponding connection methods according to user requirements.

[0022] Working principle: During operation, the staff first welds two groups of connectors 1 and connecting plates 2 together, installs the sealing rings 3 at the bottoms of the external threads at both ends of the measuring tube 4 respectively, then symmetrically screws the welded connecting plates 2 into the external threads at both ends of the measuring tube 4, and presses the sealing rings 4 to ensure the seal between the connecting plate 2 and the measuring tube 4. Electrodes 5 are installed at the front and rear positions in the middle part of the measuring tube 4, and a magnetic circuit system 6 is installed at the upper and lower positions in the middle part of the measuring tube 4. The connections between the upper and lower magnetic circuit systems 6 and the front and rear electrodes 5 are perpendicular to each other; finally, the outer shell 7 is welded to the outer circles of the left and right connecting plates 2 of the measuring tube 4, making the left and right connecting plates 2 and the measuring tube 4 into a whole.

[0023] For the 1. connector; 2. connecting plate; 3. sealing ring; 4. measuring tube; 5. electrode; 6. magnetic circuit system; 7. outer shell of the present utility model, the components are all common standard parts or parts known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. The problem solved by the present utility model is that for existing traditional electromagnetic flowmeter sensors, austenitic stainless steel is basically selected as the measuring tube, and according to different measuring media, corresponding insulating materials are selected as the lining in the measuring tube. The manufacturing process is relatively complex, and the processing cycle is relatively long. Through the mutual combination of the above components, the present utility model solves the problem that an insulating lining must be installed inside the measuring tube of a traditional electromagnetic flowmeter, thus reducing the processing cycle of the electromagnetic flowmeter, and the sensor structure is simply assembled and has stable performance.

[0024] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0025] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electromagnetic flowmeter sensor structure, characterized in that: It includes a connector (1), a connecting plate (2), a sealing ring (3), a measuring tube (4), electrodes (5), a magnetic circuit system (6) and a housing (7); One end of the connector (1) is welded to the connecting plate (2), and the other end is connected to the user pipeline. One end of the connecting plate (2) is welded to the connector (1), and the other end is connected to the measuring tube (4) through an internal thread. The sealing ring (3) is installed between the connecting plate (2) and the measuring tube (4). Both ends of the measuring tube (4) are connected to the connecting plate (2) through external threads. The electrodes (5) are symmetrically installed at the front and rear positions in the middle of the measuring tube (4). The magnetic circuit system (6) is symmetrically installed at the upper and lower positions in the middle of the measuring tube (4) and is perpendicular to the position of the electrodes (5).

2. The electromagnetic flowmeter sensor structure according to claim 1, characterized in that: The measuring tube (4) is processed from an insulating material. Threads are provided at both ends of the measuring tube (4), and the outer diameter of the threads is lower than the outer diameter of the measuring tube (4).

3. The electromagnetic flowmeter sensor structure according to claim 1, characterized in that: The housing (7) is welded to the outer circle of the connecting plate (2).

Images