Cleanable electrode non-full pipe electromagnetic flowmeter

Abstract

The utility model provides a kind of non full pipe electromagnetic flowmeter of washable electrode, water level sensor is movably arranged in the detection pipeline inside upper portion of flowmeter pipeline, and the lower portion of water level sensor is connected with the lower portion of detection pipeline by clamping or screwing, and the detection end of water level sensor faces the inside of flowmeter pipeline;The upper opening of detection pipeline is sealingly connected with cover plate.No need to disassemble flowmeter main body to wash electrode, solve the pain points of pipe network interruption, high cost, no standby pipeline maintenance caused by traditional maintenance, guarantee the accuracy and continuity of flow data, reduce operation and maintenance difficulty and cost, improve the practicability and reliability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic flowmeters, and in particular to a non-full-pipe electromagnetic flowmeter with washable electrodes. Background Technology

[0002] Non-full-pipe electromagnetic flowmeters are key devices for fluid flow monitoring. Their core operation is based on the velocity-area method, and they mainly consist of a velocity sensor, a level sensor (liquid level gauge), and a flow display instrument. In actual operation, this device continuously collects the velocity and level data of the fluid within the pipeline and, combined with preset pipeline inner diameter parameters, can automatically calculate and display the instantaneous flow rate in real time. It is widely used in fields such as wastewater monitoring.

[0003] However, in the typical application scenario of wastewater monitoring, the detection electrodes of electromagnetic flow velocity sensors need to be in direct contact with wastewater containing impurities such as scum and oil. After long-term operation, pollutants in the wastewater can easily form a coating layer on the electrode surface or breed biofilm. This problem will directly lead to the attenuation of the electrode measurement signal, which in turn will cause a significant decrease in the accuracy of flow detection and seriously affect the reliability of monitoring data.

[0004] Existing technologies for addressing electrode fouling have significant limitations: cleaning and maintenance of fouled electrodes requires the entire flowmeter to be removed from the monitoring pipeline. This maintenance method is not only cumbersome and time-consuming, but also leads to pipeline network interruption, significantly increasing maintenance costs. More importantly, most non-full-pipe electromagnetic flowmeter installation scenarios lack backup pipelines; once the flowmeter is disassembled for maintenance, the entire monitoring system will be shut down, failing to meet the need for continuous monitoring of sewage pipeline networks.

[0005] Based on the aforementioned industry pain points, there is an urgent need for a technical solution that can clean the electrodes without disassembling the flow meter body. This solution must address the measurement accuracy issues caused by electrode contamination, while avoiding the drawbacks of traditional disassembly and maintenance, such as pipeline downtime and high costs. Furthermore, an effective contamination monitoring mechanism is needed to promptly detect electrode contamination, providing accurate data for maintenance operations and ensuring the long-term stable and accurate operation of non-full-pipe electromagnetic flow meters. Utility Model Content

[0006] The main objective of this invention is to provide a non-full-pipe electromagnetic flowmeter with washable electrodes. This solves the problem that in scenarios such as wastewater monitoring, the detection electrodes of non-full-pipe electromagnetic flowmeters are easily contaminated due to long-term contact with pollutants, leading to a decrease in measurement accuracy. Existing technologies require the entire flowmeter to be disassembled to clean the electrodes, resulting in pipeline network interruption, high maintenance costs, and inability to maintain the flowmeter in scenarios without backup pipelines. Furthermore, there is a lack of effective means to monitor electrode contamination in a timely manner.

[0007] To solve the above technical problems, the technical solution adopted by this utility model is: a non-full-pipe electromagnetic flowmeter with washable electrodes, wherein a water level sensor is movably installed inside the detection pipe at the upper part of the flowmeter pipe, the lower part of the water level sensor is snapped or threaded to the lower part of the detection pipe, and the detection end of the water level sensor faces the inside of the flowmeter pipe.

[0008] The upper opening of the inspection pipe is sealed to the cover plate.

[0009] In the preferred embodiment, the lower part of the detection pipe is connected to the flow meter pipe, and the lower part of the detection pipe is provided with an inwardly extending mounting ring. The lower part of the water level sensor is threadedly connected to or snapped into the mounting ring.

[0010] In the preferred embodiment, the mounting ring is provided with multiple vertical mounting grooves around its perimeter, and a locking block is provided around the lower perimeter of the water level sensor. The locking block passes through the mounting grooves to reach the lower surface of the mounting ring, and the locking block is locked onto the lower surface of the mounting ring by rotating the water level sensor.

[0011] In the preferred embodiment, a limit card is provided on one side of the mounting groove on the lower surface of the mounting ring, and the water level sensor is rotated to make the card block lock on the limit card.

[0012] In the preferred embodiment, the limiting card has an inclined guide slope at one end near the mounting groove, and a downwardly positioned limiting groove at the end of the slope at the other end. By rotating the water level sensor, the card block is made to pass through the guide slope and lock into the limiting groove.

[0013] In the preferred embodiment, a sealing ring is also provided on the lower surface of the annular boss at the bottom of the water level sensor, and the sealing ring is located between the annular boss at the bottom of the water level sensor and the mounting ring.

[0014] Press down on the water level sensor to compress the sealing ring, causing the locking block to move away from the limiting groove, and then remove the water level sensor.

[0015] In the preferred embodiment, the lower inner ring of the sealing cover is provided with a downwardly protruding inner ring sleeve, and the outer surface of the inner ring sleeve is in contact with the inner surface of the detection pipe.

[0016] In the preferred embodiment, a sealing ring is provided on the outer surface of the inner ring sleeve, and the sealing cover plate is connected to the detection pipeline through a flange plate.

[0017] In the preferred embodiment, the upper end of the detection pipe has an annular groove protruding towards the axis, and the lower end of the inner ring sleeve is located inside the annular groove.

[0018] In the preferred embodiment, multiple infrared sensors are also installed inside the flow meter pipe, with the infrared sensors positioned on one side of the detection electrode;

[0019] Infrared sensors detect dirt on the surface and determine the degree of dirt on the electrode surface based on the level of dirt.

[0020] This invention provides a non-full-pipe electromagnetic flowmeter with washable electrodes. The water level sensor is installed in a movable manner, balancing accurate water level detection with flexible disassembly and assembly. Sufficient space is provided for electrode cleaning. The sealing cover of the detection pipe opening prevents contamination and leakage, ensuring stable equipment operation. The connection between the detection pipe and the flowmeter pipe ensures effective detection. The mounting ring, combined with threads or snap-fit, enhances the sensor's installation firmness and ease of use. The combination of the mounting groove and the locking block allows for tool-free assembly and disassembly, improving maintenance efficiency and preventing sensor misalignment. The limiting clip prevents accidental sensor rotation and loosening, ensuring detection accuracy. Its guide slope reduces installation resistance, and the limiting groove enhances the locking firmness. The sealing ring enhances the seal against leakage and contamination. The press-to-disassemble sensor method is simple and efficient, saving maintenance time.

[0021] The inner ring of the sealing cover enhances sealing and positioning, while the sealing ring plus flange connection achieves double sealing and facilitates disassembly and assembly. The detection pipe annular groove further secures the inner ring, ensuring stable sealing. The infrared sensor can indirectly monitor electrode contamination, promptly identifying problems and preventing a decrease in measurement accuracy. The electrodes can be cleaned without disassembling the flowmeter body, addressing the pain points of traditional maintenance such as pipeline interruptions, high costs, and lack of backup pipelines. This ensures accurate and continuous flow data, reduces maintenance difficulty and costs, and improves equipment practicality and reliability. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is the appearance drawing of the flow meter of this utility model;

[0024] Figure 2 This is a front sectional view of the flow meter of this utility model;

[0025] Figure 3 This is a disassembly diagram of the water level sensor in the flow meter of this utility model;

[0026] Figure 4 This is a side sectional view of the pipeline for testing according to this utility model;

[0027] Figure 5 This is a diagram showing the installation position of the limit card in this utility model.

[0028] Figure 6 This is a structural diagram of the card block of this utility model being inserted into the limiting card;

[0029] Figure 7 This is a structural diagram of the card block being inserted into the limiting slot of the limiting card in this utility model.

[0030] In the diagram: Flow meter pipe 1; Detection pipe 2; Ring groove 201; Mounting ring 202; Mounting groove 203; Data connection socket 3; Infrared sensor 4; Detection electrode 5; Water level sensor 6; Clamp 601; Sealing cover 7; Inner ring 701; Sealing ring 8; Limiting clip 9; Limiting groove 901. Detailed Implementation

[0031] Example 1

[0032] like Figure 1-7 As shown, a non-full-pipe electromagnetic flowmeter with washable electrodes has a water level sensor 6 movably installed inside the detection pipe 2 at the upper part of the flowmeter pipe 1. The lower part of the water level sensor 6 is snapped or threaded to the lower part of the detection pipe 2, and the detection end of the water level sensor 6 faces the inside of the flowmeter pipe 1.

[0033] The upper opening of the test pipe 2 is sealed to the cover plate 7.

[0034] By installing the water level sensor 6 in a movable connection within the detection pipe 2, and ensuring that the detection end faces the inside of the flow meter pipe 1, it is guaranteed that the water level sensor 6 can accurately detect the liquid level in the pipe, and it also provides a structural basis for the subsequent disassembly of the water level sensor 6, so that the internal components of the pipe can be processed through disassembly operations. Its beneficial effect is that it realizes the flexible installation and disassembly of the water level sensor 6 without affecting the normal water level detection function, and reserves operating space for subsequent maintenance operations, avoiding the problem of maintenance difficulties caused by fixed installation of the sensor.

[0035] The upper opening of the detection pipe 2 is sealed to the cover plate 7. This design uses a cover plate 7 to seal the upper opening of the detection pipe 2, primarily to protect the internal structure of the pipe. Its benefits include effectively preventing external dust, impurities, or liquids from entering the pipe, thus avoiding contamination of internal components such as the water level sensor 6 and ensuring the accuracy of the detection. It also guarantees the internal sealing of the pipe, preventing fluid leakage from the opening and ensuring the overall stability of the flow meter's operation.

[0036] In the preferred embodiment, the lower part of the detection pipe 2 is connected to the flow meter pipe 1, and the lower part of the detection pipe 2 is provided with an inwardly extending mounting ring 202. The lower part of the water level sensor 6 is threadedly connected to or snapped into the mounting ring 202.

[0037] The connection between the detection pipe 2 and the flow meter pipe 1 is established to ensure that the water level sensor 6 can contact the fluid in the flow meter pipe 1 through the detection pipe 2 for detection. The inwardly extending mounting ring 202 serves as the mounting carrier for the water level sensor 6. The beneficial effects are that the mounting ring 202 provides a more stable and accurate installation position for the water level sensor 6, enhancing the robustness of the water level sensor 6 after installation. At the same time, the connection structure ensures the effectiveness of the detection, and the threaded or snap-fit ​​connection method further balances the convenience of installation and the reliability of the connection.

[0038] In the preferred embodiment, the mounting ring 202 is provided with multiple vertical mounting grooves 203 around its perimeter, and the water level sensor 6 is provided with a locking block 601 around its lower perimeter. The locking block 601 passes through the mounting grooves 203 to reach the lower surface of the mounting ring 202. By rotating the water level sensor 6, the locking block 601 is locked onto the lower surface of the mounting ring 202.

[0039] By setting a vertical mounting slot 203 in the mounting ring 202, and cooperating with the locking block 601 of the water level sensor 6, the locking and fixing is achieved by the action of "passing through and rotating". Its beneficial effect is that it simplifies the installation and disassembly of the water level sensor 6. It can be completed by manual operation without the need for complicated tools, which improves the operation and maintenance efficiency. At the same time, the cooperation of multiple mounting slots 203 and locking blocks 601 can ensure the uniformity and stability of the connection and prevent the water level sensor 6 from being misaligned after installation.

[0040] In the preferred embodiment, a limit card 9 is provided on the lower surface of the mounting ring 202 on one side of the mounting groove 203, and the water level sensor 6 is rotated to make the card block 601 lock onto the limit card 9.

[0041] By adding a limiting card 9 to the snap-fit ​​structure, the position of the snap-fit ​​block 601 is further limited. Its beneficial effect is that it can effectively prevent the water level sensor 6 from rotating unexpectedly due to vibration and other factors during use, which would cause the snap-fit ​​to loosen. This ensures the positional stability of the water level sensor 6 after installation, avoids affecting the detection accuracy due to sensor loosening, and improves the anti-interference ability of the overall structure.

[0042] In the preferred embodiment, the limiting card 9 has an inclined guide slope at one end near the mounting groove 203, and a downwardly positioned limiting groove 901 at the end of the slope at the other end. By rotating the water level sensor 6, the card block 601 is locked in the limiting groove 901 through the guide slope.

[0043] The structure of the limit card 9 is optimized by designing a guide slope and a limit groove 901. The beneficial effects are that the guide slope can guide the card block 601 to move smoothly during rotation, reduce the operating resistance during installation, and improve the ease of installation, while the limit groove 901 can accurately position and fix the card block 601, further enhancing the firmness of the connection, preventing the card block 601 from sliding on the limit card 9, and ensuring the long-term stable operation of the water level sensor 6.

[0044] In the preferred embodiment, a sealing ring 8 is also provided on the lower surface of the annular boss at the bottom of the water level sensor 6. The sealing ring 8 is located between the annular boss at the bottom of the water level sensor 6 and the mounting ring 202.

[0045] Pressing down on the water level sensor 6 compresses the sealing ring 8, causing the locking block 601 to move away from the limiting groove 901, thus removing the water level sensor 6.

[0046] A sealing ring 8 is provided at the connection between the water level sensor 6 and the mounting ring 202. Its beneficial effect is that it can effectively enhance the sealing between the two, prevent the fluid in the flow meter pipe 1 from leaking from the connection gap, and at the same time prevent external impurities from entering the detection pipe 2 through the gap and contaminating the water level sensor 6, ensuring the cleanliness of the detection environment, and thus maintaining the accuracy of water level detection.

[0047] Pressing down on the water level sensor 6 compresses the sealing ring 8, causing the locking block 601 to move away from the limiting groove 901, thus disassembling the water level sensor 6. This design utilizes a simple and efficient disassembly method, requiring no complex tools; the locking block 601 can be released simply by pressing, facilitating rapid disassembly of the water level sensor 6. This saves time and reduces the difficulty of subsequent cleaning and maintenance of the detection electrode 5 inside the flowmeter pipeline 1.

[0048] In the preferred embodiment, the lower inner ring of the sealing cover plate 7 is provided with a downwardly protruding inner ring sleeve 701, and the outer surface of the inner ring sleeve 701 is in contact with the inner surface of the detection pipe 2.

[0049] The structure of the sealing cover 7 has been improved by adding a downwardly protruding inner ring 701 to fit against the inner wall of the detection pipe 2. The beneficial effect is that it increases the contact area between the sealing cover 7 and the detection pipe 2, thereby improving the sealing effect. At the same time, the inner ring 701 can play a positioning role in the installation position of the sealing cover 7, ensuring that the sealing cover 7 is accurately installed at the upper opening of the detection pipe 2, and avoiding sealing failure due to installation misalignment.

[0050] In the preferred embodiment, the outer surface of the inner ring 701 is provided with a sealing ring, and the sealing cover 7 is connected to the detection pipe 2 through a flange plate.

[0051] A sealing ring is added to the outer surface of the inner ring 701, and a flange plate is used to connect the sealing cover plate 7 and the detection pipe 2. The beneficial effect is that the sealing ring can further enhance the sealing performance between the inner ring 701 and the inner wall of the detection pipe 2. The double sealing structure effectively prevents leakage, while the flange plate connection method can ensure the firmness of the connection between the sealing cover plate 7 and the detection pipe 2. At the same time, the flange connection facilitates the disassembly and assembly of the sealing cover plate 7, providing convenience for subsequent opening of the detection pipe 2 for internal maintenance.

[0052] In the preferred embodiment, the upper end of the detection pipe 2 has an annular groove 201 protruding towards the axis at its internal opening, and the lower end of the inner ring sleeve 701 is located inside the annular groove 201. The annular groove 201 at the upper opening of the detection pipe 2, with the lower end of the inner ring sleeve 701 embedded within it, provides a beneficial effect: the annular groove 201 accurately positions and limits the inner ring sleeve 701, preventing the sealing cover 7 from moving vertically or horizontally during use, further improving the stability and sealing performance of the sealing cover 7 after installation, and ensuring the cleanliness of the internal environment of the detection pipe 2.

[0053] In the preferred embodiment, the flow meter pipe 1 is also equipped with multiple infrared sensors 4, which are located on one side of the detection electrode 5. The infrared sensors 4 detect dirt adhering to their surfaces and detect the degree of dirt adhering to the surface of the detection electrode 5 according to the degree of dirt.

[0054] An infrared sensor 4 is added to one side of the detection electrode 5. Its beneficial effect is that it provides an auxiliary detection component for monitoring the dirt status of the detection electrode 5. The status information of the detection electrode 5 can be indirectly obtained through the infrared sensor 4, avoiding the technical difficulties of directly detecting dirt on the detection electrode 5 itself, and providing data support for subsequent judgment on whether the detection electrode 5 needs to be cleaned.

[0055] Infrared sensor 4 detects surface contaminants and then assesses the level of contamination on the surface of detection electrode 5. This solution clarifies the working principle of infrared sensor 4, which indirectly reflects the contamination level of detection electrode 5 by the degree of contamination on its own surface. Its advantages include eliminating the need for direct contamination detection of detection electrode 5, reducing the difficulty of detection, and enabling timely and accurate monitoring of potential contamination issues. This allows staff to plan cleaning and maintenance work in advance, preventing decreased measurement accuracy or equipment malfunction due to contamination of detection electrode 5, and ensuring the long-term stable operation of the flow meter.

[0056] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A non-full-pipe electromagnetic flowmeter with washable electrodes, characterized in that: The water level sensor (6) is movably installed inside the detection pipe (2) at the top of the flow meter pipe (1). The lower part of the water level sensor (6) is snapped or threaded to the lower part of the detection pipe (2). The detection end of the water level sensor (6) faces the inside of the flow meter pipe (1). The upper opening of the test pipe (2) is sealed to the cover plate (7).

2. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 1, characterized in that: The lower part of the detection pipe (2) is connected to the flow meter pipe (1). The lower part of the detection pipe (2) is provided with an inwardly extending installation ring (202). The lower part of the water level sensor (6) is threaded or snapped into the installation ring (202).

3. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 2, characterized in that: The mounting ring (202) has multiple vertical mounting slots (203) around its perimeter. The water level sensor (6) has a locking block (601) around its lower perimeter. The locking block (601) passes through the mounting slots (203) and reaches the lower surface of the mounting ring (202). By rotating the water level sensor (6), the locking block (601) is locked onto the lower surface of the mounting ring (202).

4. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 3, characterized in that: The lower surface of the mounting ring (202) is provided with a limit card (9) on one side of the mounting groove (203). Rotate the water level sensor (6) so that the card block (601) is locked on the limit card (9).

5. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 4, characterized in that: The limit card (9) has an inclined guide slope at one end near the mounting groove (203), and a downward-facing limit groove (901) at the end of the slope at the other end. By rotating the water level sensor (6), the card block (601) is locked in the limit groove (901) through the guide slope.

6. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 5, characterized in that: A sealing ring (8) is also provided on the lower surface of the annular boss at the bottom of the water level sensor (6). The sealing ring (8) is located between the annular boss at the bottom of the water level sensor (6) and the mounting ring (202). Press down on the water level sensor (6) to compress the sealing ring (8) and move the locking block (601) away from the limiting groove (901) to remove the water level sensor (6).

7. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 1, characterized in that: The lower inner ring of the sealing cover (7) is provided with a downward protruding inner ring sleeve (701), and the outer surface of the inner ring sleeve (701) is in contact with the inner surface of the detection pipe (2).

8. The non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 7, characterized in that: The outer surface of the inner ring sleeve (701) is provided with a sealing ring, and the sealing cover plate (7) is connected to the detection pipe (2) through a flange plate.

9. A non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 8, characterized in that: The upper end of the test pipe (2) has an inner opening with a ring groove (201) protruding towards the axis, and the lower end of the inner ring sleeve (701) is set inside the ring groove (201).

10. A non-full-pipe electromagnetic flowmeter with washable electrodes according to claim 1, characterized in that: The flow meter pipe (1) is also equipped with multiple infrared sensors (4), which are located on one side of the detection electrode (5); Infrared sensor (4) detects dirt adhering to the surface and detects the dirt adhering to the surface of detection electrode (5) according to the degree of dirt.

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