Self-diagnosis electromagnetic flowmeter

Abstract

The utility model relates to the technical field of electromagnetic flow meters, and discloses a self-diagnosis electromagnetic flow meter which comprises an electromagnetic flow meter body, a through pipe and flanges, connecting lugs are arranged at the two ends of the through pipe, bolts are arranged in the middles of the connecting lugs, and the two ends of the through pipe are in threaded connection with the flanges through the bolts. An electromagnetic flowmeter body is mounted on the outer surface of the through pipe, a defoaming structure is mounted in the through pipe and comprises a sleeve, four connecting rods, a mounting ring, a rotating shaft and a spiral blade, the connecting rods are arranged in the sleeve and evenly distributed, the mounting ring is arranged at the end, away from the sleeve, of each connecting rod, and the rotating shaft is arranged on the mounting ring. A rotating shaft is rotationally connected to the middle of the mounting ring; a plurality of spiral blades are arranged at two ends of the rotating shaft. According to the electromagnetic flowmeter, fluid flowing into the through pipe can be defoamed through the arranged defoaming structure, the influence of bubbles existing in the fluid on the measurement result of the electromagnetic flowmeter body is reduced, and a good practical effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to a self-diagnostic electromagnetic flowmeter. Background Art

[0002] The electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field. It is widely used in petroleum, chemical industry, metallurgy, textile, papermaking and other fields.

[0003] The utility model patent application document with the publication number "CN209211214U" discloses an electromagnetic flowmeter with a self-diagnosis function of faults, which is mainly composed of a working box, a signal converter, a pulse controller, a full-bridge inverter, a single-chip microcomputer, a connecting pipe, a coil, a sensor group, a through pipe and a flange. When the technical solution works normally, the working indicator light is always on. When the circuit fails, the circuit breaker is powered off, the circuit breaker power failure triggers the contact, and the contact triggers the circuit indicator light and the fault light to power on, so that the circuit can perform self-diagnosis, avoiding the need to detect one by one when troubleshooting the line due to line problems.

[0004] The electromagnetic flowmeter with fault self-diagnosis function disclosed in the above document has the following defects: the electromagnetic flowmeter is installed inside the through pipe. When the fluid contains bubbles and flows inside the through pipe, when the bubbles rub against the electrode of the electromagnetic flowmeter, they will cover the entire electrode, causing the electromagnetic flowmeter signal input circuit to be open instantaneously, resulting in the output signal fluctuating, thereby affecting the measurement result and causing deviation.

[0005] It can be seen from this that the existing electromagnetic flowmeter with fault self-diagnosis function does not have a structure for eliminating bubbles, and it is necessary to improve the existing deficiencies and provide a self-diagnosis electromagnetic flowmeter. Utility Model Content

[0006] The purpose of the utility model is to provide a self-diagnostic electromagnetic flowmeter to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a self-diagnostic electromagnetic flowmeter, comprising an electromagnetic flowmeter body, a through pipe and a flange, both ends of the through pipe are provided with connecting ear blocks, the middle part of the connecting ear blocks is provided with bolts, both ends of the through pipe are threadedly connected with the flange through bolts, the outer surface of the through pipe is provided with the electromagnetic flowmeter body, the interior of the through pipe is provided with a defoaming structure, the defoaming structure comprises a sleeve, a connecting rod, a mounting ring, a rotating shaft and spiral blades, the interior of the sleeve is provided with a connecting rod, the connecting rods are fixed in four and evenly distributed, one end of the connecting rod away from the sleeve is provided with a mounting ring, the middle part of the mounting ring is rotatably connected with a rotating shaft, both ends of the rotating shaft are provided with a plurality of spiral blades, the outer surfaces of the spiral blades are provided with a plurality of defoaming spikes, and the outer surface of the sleeve abuts against the inner surface of the through pipe.

[0009] Furthermore, a first sealing groove is formed on the outer surface of the through pipe, a sealing ring is formed at one end of the flange, and a sealing ring is installed in the interior of the first sealing groove.

[0010] Furthermore, a placement hole is provided inside the flange, and a filter is installed inside the placement hole.

[0011] Furthermore, a through opening is provided on the outer surface of the through pipe, an abutment groove is provided on the outer surface of the sleeve, the through opening is connected to the abutment groove, and a fixing structure is installed inside the through opening.

[0012] Furthermore, the fixing structure includes a pulling block, a limiting rod, a fixing rod, a spring, a fixing block, a slide plate and a top plate, a fixing rod being provided at one end of the fixing block, a pulling block being provided at the other end of the fixing rod, a slide plate being installed on the outer surface of the fixing rod, a sliding hole being provided in the middle of the top plate, a fixing rod being slidably connected inside the sliding hole, a through hole being provided on the outer surface of the slide plate, the through holes being fixed in two and symmetrically arranged, a limiting rod being slidably connected inside the through holes, one end of the limiting rod being installed on the outer surface of the through pipe, the other end of the limiting rod being installed on the outer surface of the top plate, the spring being sleeved on the outer surface of the fixing rod, one end of the spring being installed on the outer surface of the slide plate, the other end of the spring being installed on the outer surface of the top plate, the fixing block being installed inside the through opening, and the outer surface of the fixing block abuts against the inner surface of the abutting groove.

[0013] Furthermore, the outer surface of the pulling block is provided with anti-slip stripes, the inner surface of the through opening is provided with a second sealing groove, the outer surface of the fixing block is provided with an elastic sealing plate, and the elastic sealing plate is fitted inside the second sealing groove.

[0014] The utility model has the following beneficial effects:

[0015] (1) The defoaming structure provided in the utility model can defoam the fluid flowing into the through pipe, thereby reducing the influence of bubbles in the fluid on the measurement result of the electromagnetic flowmeter, and achieving a good practical effect.

[0016] (2) The utility model pulls the pull block outward, so that the pull block drives the fixing rod to move outward. When the fixing rod moves, the fixing block and the abutment groove are no longer abutted. When the outer surface of the fixing block is flush with the inner surface of the through pipe, the sleeve is pulled outward to disengage the sleeve from the through pipe, thereby achieving a quick disassembly effect.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the local structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the through pipe, defoaming structure and fixed structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the defoaming structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the fixed structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the flange structure of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. Electromagnetic flowmeter body; 2. Through pipe; 201. Connecting ear block; 202. First sealing groove; 203. Through port; 3. Flange; 301. Sealing ring; 302. Placement hole; 4. Bolt; 5. Defoaming structure; 501. Sleeve; 50101. Abutment groove; 502. Connecting rod; 503. Mounting ring; 504. Rotating shaft; 505. Spiral blade; 6. Filter screen; 7. Fixed structure; 701. Pull block; 702. Limit rod; 703. Fixed rod; 704. Spring; 705. Fixed block; 706. Slide plate; 707. Top plate; 8. Elastic sealing plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Figure 6 As shown, the utility model is a self-diagnostic electromagnetic flowmeter, including an electromagnetic flowmeter body 1, a through pipe 2 and a flange 3, both ends of the through pipe 2 are provided with connecting ear blocks 201, the middle part of the connecting ear blocks 201 is provided with bolts 4, both ends of the through pipe 2 are threadedly connected with the flange 3 through the bolts 4, the outer surface of the through pipe 2 is installed with the electromagnetic flowmeter body 1, the interior of the through pipe 2 is installed with a defoaming structure 5, the defoaming structure 5 includes a sleeve 501, a connecting rod 502, a mounting ring 503, a rotating shaft 504 and spiral blades 505, the interior of the sleeve 501 is provided with a connecting rod 502, the connecting rods 502 are fixed to four and evenly distributed, the end of the connecting rod 502 away from the sleeve 501 is provided with a mounting ring 503, the middle part of the mounting ring 503 is rotatably connected with a rotating shaft 504, both ends of the rotating shaft 504 are provided with a plurality of spiral blades 505, the outer surface of the spiral blades 505 is provided with a plurality of defoaming spikes, and the outer surface of the sleeve 501 is in contact with the inner surface of the through pipe 2.

[0029] A first sealing groove 202 is formed on the outer surface of the through pipe 2 , a sealing ring 301 is formed at one end of the flange 3 , and the sealing ring 301 is installed in the interior of the first sealing groove 202 .

[0030] A placement hole 302 is provided inside the flange 3 , and a filter screen 6 is installed inside the placement hole 302 .

[0031] A through opening 203 is formed on the outer surface of the through pipe 2 , and an abutment groove 50101 is formed on the outer surface of the sleeve 501 . The through opening 203 is connected to the abutment groove 50101 , and a fixing structure 7 is installed inside the through opening 203 .

[0032] The fixing structure 7 includes a pull block 701, a limit rod 702, a fixing rod 703, a spring 704, a fixing block 705, a slide plate 706 and a top plate 707. The fixing rod 703 is provided at one end of the fixing block 705, the other end of the fixing rod 703 is provided with a pull block 701, the outer surface of the fixing rod 703 is installed with a slide plate 706, a sliding hole is opened in the middle of the top plate 707, the fixing rod 703 is slidably connected inside the sliding hole, and a through hole is opened on the outer surface of the slide plate 706, and the through holes are fixed in two and symmetrically arranged. The internal sliding connection of the through hole is provided with a limit rod 702, one end of the limit rod 702 is mounted on the outer surface of the through pipe 2, and the other end of the limit rod 702 is mounted on the outer surface of the top plate 707. The spring 704 is sleeved on the outer surface of the fixed rod 703, one end of the spring 704 is mounted on the outer surface of the slide plate 706, and the other end of the spring 704 is mounted on the outer surface of the top plate 707. The fixed block 705 is mounted inside the through hole 203, and the outer surface of the fixed block 705 abuts against the inner surface of the abutment groove 50101.

[0033] The outer surface of the pull block 701 is provided with anti-slip stripes, the inner surface of the through opening 203 is provided with a second sealing groove, and the outer surface of the fixing block 705 is provided with an elastic sealing plate 8, which is installed in the second sealing groove.

[0034] When in use, first install the external water inlet pipe and the flange 3 containing the filter screen 6, then install the external water outlet pipe and the other flange 3, then open the water valve, the fluid flows into the inside of the through pipe 2 through the water inlet pipe, the fluid first passes through the filter screen 6 for preliminary defoaming and filtration, when the filtered fluid passes through the spiral blade 505, it drives the spiral blade 505 to rotate, while the spiral blade 505 rotates, the defoaming spikes defoam the bubbles inside the fluid, the defoamed fluid is discharged through the water outlet pipe, reducing the impact of bubbles inside the fluid on the electromagnetic flowmeter body 1 The measurement results are affected. When the defoaming structure 5 needs to be disassembled, first remove the bolt 4 by rotating it counterclockwise to cancel the fixed installation of the flange 3 and the through pipe 2, then remove the flange 3, and then pull the pull block 701 outward to make the pull block 701 drive the fixing rod 703 to move outward. When the fixing rod 703 moves, the fixing block 705 and the abutment groove 50101 are cancelled. When the outer surface of the fixing block 705 is flush with the inner surface of the through pipe 2, pull the sleeve 501 outward to make the sleeve 501 detach from the through pipe 2, so as to achieve the effect of quick disassembly.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A self-diagnostic electromagnetic flowmeter, comprising an electromagnetic flowmeter body (1), a through pipe (2) and a flange (3), characterized in that: Both ends of the through pipe (2) are provided with connecting ear blocks (201), the middle of the connecting ear blocks (201) are provided with bolts (4), both ends of the through pipe (2) are threadedly connected to the flange (3) via the bolts (4), the outer surface of the through pipe (2) is provided with an electromagnetic flowmeter body (1), and the interior of the through pipe (2) is provided with a defoaming structure (5); The defoaming structure (5) comprises a sleeve (501), a connecting rod (502), a mounting ring (503), a rotating shaft (504) and a spiral blade (505). A connecting rod (502) is arranged inside the sleeve (501). The connecting rods (502) are fixed in four numbers and are evenly distributed. A mounting ring (503) is arranged at one end of the connecting rod (502) away from the sleeve (501). The middle part of the mounting ring (503) is rotatably connected to the rotating shaft (504). A plurality of spiral blades (505) are arranged at both ends of the rotating shaft (504). The outer surface of the spiral blade (505) is provided with a plurality of defoaming spikes. The outer surface of the sleeve (501) is in contact with the inner surface of the through pipe (2).

2. A self-diagnostic electromagnetic flowmeter according to claim 1, characterized in that: The outer surface of the through pipe (2) is provided with a first sealing groove (202), one end of the flange (3) is provided with a sealing ring (301), and the interior of the first sealing groove (202) is fitted with a sealing ring (301).

3. A self-diagnostic electromagnetic flowmeter according to claim 1, characterized in that: A placement hole (302) is provided inside the flange (3), and a filter screen (6) is installed inside the placement hole (302).

4. A self-diagnostic electromagnetic flowmeter according to claim 1, characterized in that: The outer surface of the through pipe (2) is provided with a through opening (203), the outer surface of the sleeve (501) is provided with an abutment groove (50101), the through opening (203) and the abutment groove (50101) are connected, and a fixing structure (7) is installed inside the through opening (203).

5. A self-diagnostic electromagnetic flowmeter according to claim 4, characterized in that: The fixing structure (7) comprises a pulling block (701), a limiting rod (702), a fixing rod (703), a spring (704), a fixing block (705), a sliding plate (706) and a top plate (707); one end of the fixing block (705) is provided with a fixing rod (703); the other end of the fixing rod (703) is provided with a pulling block (701); the outer surface of the fixing rod (703) is installed with a sliding plate (706); a sliding hole is opened in the middle of the top plate (707); the fixing rod (703) is slidably connected inside the sliding hole; the outer surface of the sliding plate (706) is opened with through holes; the through holes are fixed as two symmetrically arranged The through hole is internally slidably connected to a limit rod (702), one end of the limit rod (702) is mounted on the outer surface of the through pipe (2), and the other end of the limit rod (702) is mounted on the outer surface of the top plate (707); the spring (704) is sleeved on the outer surface of the fixing rod (703), one end of the spring (704) is mounted on the outer surface of the slide plate (706), and the other end of the spring (704) is mounted on the outer surface of the top plate (707); the fixing block (705) is mounted inside the through hole (203), and the outer surface of the fixing block (705) is in contact with the inner surface of the abutment groove (50101).

6. A self-diagnostic electromagnetic flowmeter according to claim 5, characterized in that: The outer surface of the pulling block (701) is provided with anti-slip stripes, the inner surface of the through opening (203) is provided with a second sealing groove, and the outer surface of the fixing block (705) is provided with an elastic sealing plate (8), and the elastic sealing plate (8) is installed in cooperation with the inside of the second sealing groove.

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