A flow meter self-cleaning mechanism

Abstract

The utility model belongs to flowmeter technical field especially, it is a kind of flowmeter self-cleaning mechanism, including flowmeter body, the liquid inlet end fixed mounting of flowmeter body has control valve, one end of control valve is fixedly connected with connecting pipe, one end of connecting pipe is fixedly connected with self-cleaning filter mechanism. This flowmeter self-cleaning mechanism, by setting self-cleaning filter mechanism, when using, the fluid in the flowmeter body is filtered by filter cover, and the driving paddle is moved by fluid entering process, driving pipe and cleaning cover are rotated, brush strip is moved, filter cover is cleaned, thereby the existing measured fluid often contains impurity, easy to cause flowmeter blockage, influence flowmeter's measurement accuracy, and need frequently to flowmeter overall removal cleaning, lead to the problem of inconvenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, and in particular to a flow meter self-cleaning mechanism. Background Technology

[0002] In industrial settings, instruments used to measure fluid flow are collectively referred to as flow meters or flow meters. They are among the most important instruments in industrial measurement. With industrial development, the requirements for the accuracy and range of flow measurement are becoming increasingly stringent. To adapt to various applications, different types of flow meters have emerged and are widely used in industries such as oil and gas, petrochemicals, water treatment, food and beverage, pharmaceuticals, energy, metallurgy, pulp and paper, and building materials.

[0003] Since the fluid being measured often contains impurities, when the fluid passes through the flow meter, the impurities are easily left in the flow meter, causing blockage and affecting the measurement accuracy of the flow meter. In addition, the flow meter needs to be disassembled and cleaned frequently, which makes maintenance inconvenient. Therefore, a self-cleaning mechanism for the flow meter is needed. Utility Model Content

[0004] Based on the existing technical problems that the fluids being measured often contain impurities, which can easily cause flow meter blockage and affect the accuracy of flow meter measurement, and that the flow meter needs to be frequently disassembled and cleaned, resulting in inconvenient maintenance, this utility model proposes a self-cleaning mechanism for flow meters.

[0005] This utility model proposes a self-cleaning mechanism for a flow meter, including a flow meter body. A control valve is fixedly installed at the inlet end of the flow meter body. One end of the control valve is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to a self-cleaning filter mechanism. The self-cleaning filter mechanism is used to filter the fluid entering the flow meter body and to self-clean the filter screen used for fluid filtration.

[0006] Preferably, the self-cleaning filter mechanism includes a filter tube, one end of which is fixedly connected to one end of the connecting tube, a limiting ring is fixedly connected to the inner wall of the connecting tube, and a filter screen is fixedly connected to the surface of the limiting ring.

[0007] The surface of the filter screen is conical, the filter screen is located inside the filter tube, and the axis of the filter screen is eccentrically set with respect to the axis of the filter tube.

[0008] Preferably, a fixed magnetic ring is fixedly connected to the inner wall of the filter tube, and a movable magnetic ring is provided on one side of the fixed magnetic ring. The surface of the movable magnetic ring is slidably connected to the inner wall of the filter tube, and the surfaces of the movable magnetic ring and the fixed magnetic ring that are close to each other have the same pole.

[0009] Preferably, the inner wall of the movable magnetic ring is fixedly connected to a connecting rod, and the three connecting rods are arranged in a ring array with the axis of the movable magnetic ring as the center.

[0010] One end of the connecting rod is fixedly connected to a drive tube, the axis of the drive tube is concentric with the axis of the filter tube, and a drive blade is fixedly connected to the inner wall of the drive tube. Multiple drive blades are arranged in a ring array with the axis of the drive tube as the center.

[0011] Preferably, a cleaning cover is fixedly connected to one end of the drive tube, the inner wall of the cleaning cover is sleeved with the surface of the filter screen, and a brush strip is fixedly connected to the inner wall of the cleaning cover. Multiple brush strips are arranged in a ring array with the axis of the cleaning cover as the center.

[0012] Preferably, the other end of the drive tube is fixedly connected to a liquid collecting hopper, and one end of the liquid collecting hopper is slidably connected to the inner wall of the filter tube.

[0013] Preferably, a drain pipe is fixedly connected to the surface of the filter tube, and a sealing cap is threaded to one end of the drain pipe.

[0014] The beneficial effects of this utility model are as follows:

[0015] By incorporating a self-cleaning filtration mechanism, the fluid entering the flow meter body is filtered through the filter screen during use. The fluid's entry process drives the drive blades, which in turn rotate the drive tube and cleaning cover, causing the brush strips to move and clean the filter screen. This solves the problems of existing methods where the measured fluid often contains impurities, easily causing flow meter blockage and affecting measurement accuracy, and requiring frequent disassembly and cleaning of the entire flow meter, leading to inconvenient maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a self-cleaning mechanism for a flow meter proposed in this utility model;

[0017] Figure 2 The left view shows the filter tube structure of a flow meter self-cleaning mechanism proposed in this utility model.

[0018] Figure 3 This utility model proposes a self-cleaning mechanism for a flow meter. Figure 2 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 This is a three-dimensional view of the limiting ring structure of a flowmeter self-cleaning mechanism proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the sealing cover structure of a flow meter self-cleaning mechanism proposed in this utility model.

[0021] In the diagram: 1. Flow meter body; 2. Control valve; 3. Connecting pipe; 4. Filter pipe; 401. Limiting ring; 402. Filter screen; 403. Fixed magnetic ring; 404. Movable magnetic ring; 405. Connecting rod; 406. Drive pipe; 407. Drive blade; 408. Cleaning cover; 409. Brush strip; 410. Liquid collection hopper; 411. Drain pipe; 412. Sealing cover. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-5 A flow meter self-cleaning mechanism includes a flow meter body 1. The flow meter body 1 is a commercially available flow meter body 1, so its internal structure and wiring diagram are known and need not be described in detail. A control valve 2 is fixedly installed at the liquid inlet end of the flow meter body 1.

[0024] Furthermore, the control valve 2 is a commercially available manual control valve 2, the internal structure of which is known and will not be described in detail here. In this embodiment, the control valve 2 is used to control the flow of the measuring fluid into the flow meter body 1 for flow measurement and to cut off the flow of the fluid into the flow meter body 1.

[0025] One end of the control valve 2 is fixedly connected to the connecting pipe 3, and one end of the connecting pipe 3 is fixedly connected to the self-cleaning filter mechanism. The self-cleaning filter mechanism is used to filter the fluid entering the flow meter body 1 and to self-clean the filter screen 402 used for fluid filtration.

[0026] The self-cleaning filter mechanism includes a filter tube 4, one end of which is fixedly connected to one end of a connecting tube 3. A limiting ring 401 is fixedly connected to the inner wall of the connecting tube 3, and a filter screen 402 is fixedly connected to the surface of the limiting ring 401.

[0027] The surface of the filter screen 402 is conical. The filter screen 402 is located inside the filter tube 4, and the axis of the filter screen 402 is eccentrically set with respect to the axis of the filter tube 4.

[0028] During use, the fluid entering the flow meter body 1 is filtered through the filter screen 402.

[0029] A fixed magnetic ring 403 is fixedly connected to the inner wall of the filter tube 4. A movable magnetic ring 404 is provided on one side of the fixed magnetic ring 403. The surface of the movable magnetic ring 404 is slidably connected to the inner wall of the filter tube 4. The surfaces of the movable magnetic ring 404 and the fixed magnetic ring 403 that are close to each other have the same pole.

[0030] When in use, the surfaces of the movable magnetic ring 404 and the fixed magnetic ring 403 approach each other and have the same pole. At the same time, the movable magnetic ring 404 and the fixed magnetic ring 403 maintain a distance through magnetic repulsion of the same pole.

[0031] The inner wall of the movable magnetic ring 404 is fixedly connected to a connecting rod 405, and the three connecting rods 405 are arranged in a ring array with the axis of the movable magnetic ring 404 as the center.

[0032] One end of the connecting rod 405 is fixedly connected to the drive tube 406. The axis of the drive tube 406 is concentric with the axis of the filter tube 4. The inner wall of the drive tube 406 is fixedly connected to the drive blade 407. Multiple drive blades 407 are arranged in a ring array with the axis of the drive tube 406 as the center.

[0033] In use, the drive tube 406 is concentric with the filter tube 4, and the filter screen 402 is eccentric with the filter tube 4. This makes the axis of the drive tube 406 eccentric with the conical tip of the filter screen 402. After the fluid enters through the drive tube 406 and comes into contact with the filter screen 402, it flows towards the eccentricity, thereby driving the drive blade 407 to rotate the drive tube 406.

[0034] One end of the drive tube 406 is fixedly connected to a cleaning cover 408. The inner wall of the cleaning cover 408 is sleeved with the surface of the filter screen cover 402. The inner wall of the cleaning cover 408 is fixedly connected to a brush strip 409. Multiple brush strips 409 are arranged in a ring array with the axis of the cleaning cover 408 as the center.

[0035] The other end of the drive tube 406 is fixedly connected to the liquid collection hopper 410, and one end of the liquid collection hopper 410 is slidably connected to the inner wall of the filter tube 4.

[0036] In use, the fluid is collected by the collection hopper 410, and the fluid enters the filter tube 4 from the inlet end of the filter tube 4 through the drive tube 406 to the outlet end of the filter tube 4, which drives the drive blade 407 to rotate and drives the cleaning cover 408 to rotate.

[0037] A drain pipe 411 is fixedly connected to the surface of the filter tube 4, and a sealing cap 412 is threaded to one end of the drain pipe 411.

[0038] In use, the sealing cover 412 is opened by rotating the thread, and then the impurities and dirt in the filter tube 4 are discharged through the drain pipe 411.

[0039] By setting a self-cleaning filtration mechanism, the fluid entering the flow meter body 1 is filtered through the filter screen 402 during use. The fluid entering the flow meter drives the drive blade 407 to rotate, which in turn drives the drive pipe 406 and the cleaning cover 408 to rotate, thereby moving the brush strip 409 to clean the filter screen 402. This solves the problems of impurities in the fluid being measured, which can easily cause flow meter blockage and affect the accuracy of flow meter measurement, as well as the inconvenience of frequent disassembly and cleaning of the flow meter.

[0040] Working principle: During use, the fluid entering the flow meter body 1 is filtered by the filter screen 402. As the fluid enters the flow meter body 1, it is collected by the collection hopper 410. The fluid enters through the drive pipe 406 with a smaller orifice, contacting the drive blades 407. Because the axis of the drive pipe 406 is eccentric to the axis of the filter screen 402, the fluid is diverted by the filter screen 402 during its movement, driving the drive blades 407 to move and the drive pipe 406 to rotate, thus rotating the cleaning cover 408. The rotating cleaning hood 408 drives the brush strips 409 to clean and prevent clogging of the filter screen 402. Impurities on the filter screen 402 are cleaned by the brush strips 409 and fall into the filter tube 4. After periodically rotating the manual control valve 2 to close the connection between the connecting pipe 3 and the flow meter body 1, a collection container is placed below the drain pipe 411. The sealing cap 412 on the drain pipe 411 is opened, allowing fluid to drain through the drain pipe 411 into the collection container. This process collects and removes fluid and impurities from the filter tube 4. After cleaning, the sealing cap 412 is replaced, and the manual control valve 2 is opened to connect the connecting pipe 3 and the flow meter body 1.

[0041] 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 flow meter self-cleaning mechanism comprising a flow meter body (1) characterized by: A control valve (2) is fixedly installed at the inlet end of the flow meter body (1). One end of the control valve (2) is fixedly connected to a connecting pipe (3). One end of the connecting pipe (3) is fixedly connected to a self-cleaning filter mechanism. The self-cleaning filter mechanism is used to filter the fluid entering the flow meter body (1) and to self-clean the filter screen (402) used for fluid filtration.

2. The flow meter self-cleaning mechanism according to claim 1, characterized in that: The self-cleaning filter mechanism includes a filter tube (4), one end of which is fixedly connected to one end of the connecting tube (3), and a limiting ring (401) is fixedly connected to the inner wall of the connecting tube (3), and a filter screen (402) is fixedly connected to the surface of the limiting ring (401). The surface of the filter screen (402) is conical, the filter screen (402) is located inside the filter tube (4), and the axis of the filter screen (402) is eccentrically set with respect to the axis of the filter tube (4).

3. The flow meter self-cleaning mechanism according to claim 2, characterized in that: A fixed magnetic ring (403) is fixedly connected to the inner wall of the filter tube (4). A movable magnetic ring (404) is provided on one side of the fixed magnetic ring (403). The surface of the movable magnetic ring (404) is slidably connected to the inner wall of the filter tube (4). The surfaces of the movable magnetic ring (404) and the fixed magnetic ring (403) that are close to each other have the same pole.

4. The flow meter self-cleaning mechanism according to claim 3, characterized in that: The inner wall of the movable magnetic ring (404) is fixedly connected to a connecting rod (405), and the three connecting rods (405) are arranged in a ring array with the axis of the movable magnetic ring (404) as the center. One end of the connecting rod (405) is fixedly connected to a drive tube (406), the axis of the drive tube (406) is concentric with the axis of the filter tube (4), and a drive blade (407) is fixedly connected to the inner wall of the drive tube (406). Multiple drive blades (407) are arranged in a ring array with the axis of the drive tube (406) as the center.

5. The flow meter self-cleaning mechanism according to claim 4, characterized in that: One end of the drive tube (406) is fixedly connected to a cleaning cover (408). The inner wall of the cleaning cover (408) is sleeved with the surface of the filter screen (402). The inner wall of the cleaning cover (408) is fixedly connected to a brush strip (409). Multiple brush strips (409) are arranged in a ring array with the axis of the cleaning cover (408) as the center.

6. The flow meter self-cleaning mechanism according to claim 5, characterized in that: The other end of the drive tube (406) is fixedly connected to a liquid collecting hopper (410), and one end of the liquid collecting hopper (410) is slidably connected to the inner wall of the filter tube (4).

7. A flow meter self-cleaning mechanism according to claim 6, characterized in that: The surface of the filter tube (4) is fixedly connected to a drain pipe (411), and one end of the drain pipe (411) is threadedly connected to a sealing cap (412).

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