A multiphase flowmeter pre-processor with impurity filtering function

Abstract

The utility model belongs to flowmeter technical field especially a kind of multi-phase flowmeter preposition device with impurity filtering function, including flowmeter body, the feed end surface of flowmeter body is equipped with filter mechanism, filter mechanism includes filter pipe, and the feed end surface of flowmeter body is fixedly connected with the one end of filter pipe through flange and intercommunication.The multi-phase flowmeter preposition device with impurity filtering function, by being equipped with filter mechanism on the feed end surface of flowmeter body, metal impurities in filter pipe are captured using magnet in filter mechanism, and magnet is movably installed using installation ring, so that, after filtering, magnet is deflected using installation ring, so that magnet drives metal impurities in filter pipe to migrate, impurities are recycled using collection box, metal impurities are prevented from blocking or wearing sensor in flowmeter body, so that the material entering multi-phase flowmeter is filtered conveniently.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and in particular to a pre-filter for a multiphase flow meter with impurity filtration function. Background Technology

[0002] In multiphase flow meter applications, the ingress of metal particles is indeed a common problem that affects equipment performance. Specifically, metal particles may originate from raw materials in the fluid, pipe wear, or external environmental contamination. These metal particles can adversely affect the flow meter's sensor, fluid channels, and even electrical systems, leading to blockages, wear, signal distortion, or equipment malfunctions. This is especially true during oil and gas field production processes, where the fluid may contain metal particles. Particularly during the production phase of oil and gas wells, metal particles are often generated from wear in pipes or equipment. These particles can enter the flow meter with the fluid, and when they enter the sensor section of the multiphase flow meter, they can cause scratches or blockages on the sensor surface. Utility Model Content

[0003] To address the technical problem of existing multiphase flow meters being affected by metal impurities entering the meter, this invention proposes a multiphase flow meter pre-filter with impurity filtration function.

[0004] This utility model proposes a pre-filter for a multiphase flow meter with impurity filtration function, including a flow meter body. A filter mechanism is installed on the feed end surface of the flow meter body. The filter mechanism includes a filter tube, one end of which is fixedly connected and communicates with the feed end surface of the flow meter body through a flange.

[0005] Preferably, the outer surface of the filter tube is slidably fitted with an installation ring, and the surfaces of the two installation rings are provided with installation grooves. The inner walls of the installation grooves are fixedly connected with magnets, and the inner side walls of the two installation rings are fixedly connected with anti-slip plates.

[0006] The above technical solution utilizes grooves on the surface of the mounting ring for magnet installation, thereby reducing the gap between the magnet and the inside of the filter tube. The mounting ring drives the magnet to deflect, and the overlapping of two anti-slip plates further hinders the deflection of the mounting ring, preventing pipe vibration or deflection of the mounting ring under the influence of gravity.

[0007] Preferably, the lower end of the filter tube is provided with a feeding trough, and a collection box is slidably inserted into the inner wall of the feeding trough, the collection box being open on the upper surface.

[0008] The above technical solution uses a collection box to collect impurities discharged from the feeding trough, thereby preventing impurities from scattering. A sealing gasket or other mechanism can also be fitted onto the outer surface of the collection box to facilitate sealing of the feeding trough.

[0009] Preferably, the inner wall of the filter tube is provided with a groove, and a metal strip is slidably connected to the inner wall of the groove. A cover plate is fixedly connected to one end of the metal strip, and the cover plate is located directly above the collection box.

[0010] The above technical solution restricts the running trajectory of the metal strip by using a chute, and the metal strip slides within the chute, further reducing the distance between the metal strip and the magnet.

[0011] Preferably, a limiting plate is slidably connected to the lower end surface of the mounting ring, and the limiting plate is located directly below the collection box.

[0012] The above technical solution uses a limiting plate to prevent the collection box from falling off by the mating mounting ring, thus making it easier to avoid the collection box falling off.

[0013] Preferably, screws are inserted into both ends of the limiting plate, the upper ends of the screws are fixedly inserted into both ends of the collection box, and the two ends of the collection box are fixed to the lower end of the filter tube by screws.

[0014] The above technical solution not only uses screws to install and fix the collection box, but also helps to prevent the installation ring from shifting in the horizontal direction.

[0015] The beneficial effects of this utility model are as follows:

[0016] By installing a filter mechanism on the feed end surface of the flow meter body, the magnet in the filter mechanism captures metal impurities in the filter tube. The magnet is movably installed by the mounting ring, so that after filtration, the mounting ring deflects the magnet, causing the magnet to move the metal impurities in the filter tube, which is convenient for the collection box to recover the impurities. This avoids the metal impurities clogging or wearing down the sensor in the flow meter body, thus making it easy to filter materials entering the multiphase flow meter. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a multiphase flow meter pre-filter with impurity filtration function proposed in this utility model.

[0018] Figure 2 This is a cross-sectional view of the filter tube structure of a multiphase flow meter pre-amplifier with impurity filtration function proposed in this utility model.

[0019] Figure 3 This is a cross-sectional view of the mounting ring structure of a multiphase flowmeter pre-amplifier with impurity filtration function proposed in this utility model.

[0020] Figure 4This is a perspective view of the cover plate structure of a multiphase flow meter pre-amplifier with impurity filtration function proposed in this utility model.

[0021] Figure 5 This is a perspective view of the collection box structure of a multiphase flowmeter pre-amplifier with impurity filtration function proposed in this utility model.

[0022] In the diagram: 1. Flow meter body; 2. Filter tube; 21. Mounting ring; 22. Magnet; 23. Anti-slip plate; 24. Collection box; 25. Metal strip; 26. Cover plate; 3. Limiting plate; 4. Screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-5 A multiphase flow meter pre-filter with impurity filtration function includes a flow meter body 1. A filter mechanism is installed on the feed end surface of the flow meter body 1. The filter mechanism includes a filter tube 2. One end of the filter tube 2 is fixedly connected and communicates with the feed end surface of the flow meter body 1 through a flange.

[0025] To install the magnet 22, an installation ring 21 is slidably fitted onto the outer surface of the filter tube 2. Each of the two installation rings 21 has an installation groove, and the magnet 22 is fixedly connected to the inner wall of the groove. Anti-slip plates 23 are fixedly connected to the inner side walls of both installation rings 21. The installation of the magnet 22 utilizes the grooves on the surface of the installation rings 21, thus reducing the gap between the magnet 22 and the inside of the filter tube 2. The installation rings 21 drive the magnet 22 to deflect, and the overlapping of the two anti-slip plates 23 further hinders the deflection of the installation rings 21, preventing pipe vibration or deflection of the installation rings 21 under the influence of gravity. A discharge trough is provided at the lower end of the filter tube 2. A collection box 24 is slidably inserted into the inner wall of the discharge trough. The collection box 24 has an open upper surface, used to collect impurities discharged from the discharge trough, thus preventing impurities from scattering. Sealing gaskets and other mechanisms can also be fitted onto the outer surface of the collection box 24 to facilitate sealing of the discharge trough.

[0026] To install the collection box 24, a groove is provided on the inner wall of the filter tube 2. A metal strip 25 is slidably connected to the inner wall of the groove. A cover plate 26 is fixedly connected to one end of the metal strip 25. The cover plate 26 is located directly above the collection box 24. The groove restricts the movement of the metal strip 25, and the metal strip 25 slides within the groove, further reducing the distance between the metal strip 25 and the magnet 22. A limit plate 3 is slidably connected to the lower end of the mounting ring 21. The limit plate 3 is located directly below the collection box 24. The limit plate 3 prevents the mounting ring 21 from falling off the collection box 24, thus avoiding the collection box 24 from falling off.

[0027] By installing a filter mechanism on the feed end surface of the flow meter body 1, the magnet 22 in the filter mechanism captures metal impurities in the filter tube 2. The magnet 22 is movably installed by the mounting ring 21, so that after filtration, the mounting ring 21 deflects the magnet 22, causing the magnet 22 to move the metal impurities in the filter tube 2, which is convenient for the collection box 24 to recover the impurities. This avoids the metal impurities clogging or wearing down the sensor in the flow meter body 1, thus making it easy to filter materials entering the multiphase flow meter.

[0028] Screws 4 are inserted into both ends of the limiting plate 3. The upper end of the screw 4 is fixedly inserted into both ends of the collection box 24. The two ends of the collection box 24 are fixed to the lower end of the filter tube 2 by the screws 4. While the collection box 24 is installed and fixed by the screws 4, it is easy to prevent the installation ring 21 from shifting in the horizontal direction.

[0029] Working principle:

[0030] Before use, move the mounting ring 21 to both sides to install the collection box 24. Then move the mounting ring 21 to the surface of the collection box 24 and fix it to the surface of the collection box 24 by adding screws 4 through the limiting plate 3. Rotate the two mounting rings 21 so that the magnets 22 on the surface of the two mounting rings 21 are located at the 3 o'clock and 9 o'clock positions respectively. When the mounting ring 21 rotates, it causes the anti-slip plate 23 on the inner wall of the mounting ring 21 to overlap. The friction of the surface of the anti-slip plate 23 resists the deflection of the mounting ring 21, and the metal strip 25 slides upward in the groove under the attraction of the magnet 22. The two cover plates 26 are spliced ​​at the lower end of the filter tube 2 and seal the opening surface of the collection box 24.

[0031] When in use, magnet 22 attracts the metal impurities flowing through filter tube 2, and the impurities are adsorbed onto the inner wall of filter tube 2.

[0032] After use, manually deflect the mounting ring 21 so that the magnet 22 is directly below the collection box 24. The metal strip 25 deflects downward under the attraction of the magnet 22, and the cover plate 26 deflects upward under the action of the metal strip 25, and scrapes off the impurities that move with the magnet 22. The opening surface of the collection box 24 opens, and the metal impurities fall into the collection box 24. Then, the impurities are removed by disassembling the collection box 24.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pre-filter for a multiphase flow meter with impurity filtration function, comprising a flow meter body (1), characterized in that: A filter mechanism is installed on the feed end surface of the flow meter body (1). The filter mechanism includes a filter tube (2). One end of the filter tube (2) is fixedly connected and communicates with the feed end surface of the flow meter body (1) through a flange. The outer surface of the filter tube (2) is slidably fitted with an installation ring (21). The surfaces of the two installation rings (21) are provided with installation grooves. The inner walls of the installation grooves are fixedly connected with magnets (22). The inner side walls of the two installation rings (21) are fixedly connected with anti-slip plates (23).

2. The pre-filter device for a multiphase flow meter with impurity filtration function according to claim 1, characterized in that: The filter tube (2) has a feeding groove at its lower end, and a collection box (24) is slidably inserted into the inner wall of the feeding groove. The collection box (24) has an open upper surface.

3. The pre-filter device for a multiphase flow meter with impurity filtration function according to claim 2, characterized in that: The inner wall of the filter tube (2) is provided with a sliding groove, and a metal strip (25) is slidably connected to the inner wall of the sliding groove. A cover plate (26) is fixedly connected to one end of the metal strip (25), and the cover plate (26) is located directly above the collection box (24).

4. A pre-filter for a multiphase flow meter with impurity filtration function according to claim 3, characterized in that: The lower end surface of the mounting ring (21) is slidably connected to a limiting plate (3), which is located directly below the collection box (24).

5. A pre-filter for a multiphase flow meter with impurity filtration function according to claim 4, characterized in that: Screws (4) are inserted into both ends of the limiting plate (3). The upper end of the screws (4) is fixedly inserted into both ends of the collection box (24). The two ends of the collection box (24) are fixed to the lower end of the filter tube (2) by screws (4).

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