A magnetically sensitive dual-color level gauge that is easy to observe

Abstract

This utility model discloses a magnetically sensitive bicolor level gauge that is easy to observe, relating to the field of level gauge technology. It includes a measuring tube with a magnetic float inside that rises and falls with the liquid level. A display mechanism is installed on the outer wall of the measuring tube, and a controller is fixedly connected to the bottom of the display mechanism. The display mechanism includes a magnetic flip display column, a display slot, a vent pipe, an external connecting pipe, and a jet nozzle. The display slot is located on the outer wall of the magnetic flip display column. This utility model connects one end of the external connecting pipe to the top of the vent pipe, and the other end can be connected to an external dry air source. When moisture or snow accumulates on the surface of the protective cover in complex weather conditions, obstructing visibility, dry gas is introduced through the external connecting pipe. The gas is then blown evenly from the jet nozzle onto the outer surface of the transparent plate through the vent pipe, quickly removing moisture or snow and preventing obstruction of observation. Combined with a camera, it provides image acquisition functionality for remote observation, solving the problem of operators being unable to approach dangerous areas for observation.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge technology, and in particular to a magnetically sensitive bicolor liquid level gauge that is easy to observe. Background Technology

[0002] In industrial production, liquid level monitoring is a key link in ensuring production safety, optimizing process flow, and preventing media leakage or overflow. Whether it is a storage tank, reaction vessel, boiler drum, or various containers, the liquid level inside is directly related to the stability of equipment operation, product quality, and operator safety. Magnetic level gauges are widely used in high-risk media monitoring scenarios such as chemical and petroleum industries due to their advantages of being leak-free, corrosion-resistant, and adaptable to high pressure.

[0003] However, in actual industrial scenarios, traditional magnetic level gauges are not capable of long-distance observation. Industrial storage tanks are often located at high altitudes or in dangerous areas, and operators need to observe the liquid level from a safe distance. When observing from a distance, the color boundary is blurred, which can easily lead to misjudgment of the liquid level. In addition, in complex weather conditions, water vapor or snow on the surface of the protective cover can obstruct the view, making it difficult to accurately read the liquid level even at close range. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of traditional magnetic level gauges in long-distance observation. Industrial storage tanks are often located at high altitudes or in hazardous areas, requiring operators to observe the liquid level from a safe distance. However, the color boundaries are often blurred during long-distance observation, which can lead to misjudgments of the liquid level. Furthermore, in complex weather conditions, moisture or snow accumulation on the protective cover can obstruct the view, making it difficult to accurately read the liquid level even at close range. Therefore, this invention proposes a magnetic dual-color level gauge that is easier to observe.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a magnetically sensitive dual-color level gauge that is easy to observe, comprising a measuring tube, inside which is a magnetic float that rises and falls with the liquid level, a display mechanism installed on the outer wall of the measuring tube, a controller fixedly connected to the bottom surface of the display mechanism, the display mechanism comprising a magnetic flip display column, a display slot, a vent pipe, an outer connecting pipe, and an air jet nozzle, the display slot being formed on the outer wall of the magnetic flip display column, a transparent plate being installed on the inner wall of the display slot, multiple dual-color magnetic flip columns that can rotate around a horizontal axis being arranged inside the display slot, the vent pipe being embedded in the outer wall of the magnetic flip display column, the outer connecting pipe being fixedly connected to the top of the vent pipe, the air jet nozzle being formed on the inner side wall of the display slot and communicating with the inside of the vent pipe, and a liftable and movable camera being installed on one side of the display mechanism.

[0006] Preferably, the display mechanism further includes a servo motor, a movable slot, and a lead screw. The movable slot is formed on the side wall of the magnetic flip display column, the lead screw is rotatably connected to the inner wall of the movable slot, the servo motor is installed on the lower outer wall of the magnetic flip display column, and the output shaft end of the servo motor is connected to the bottom end of the lead screw.

[0007] Preferably, one end of the camera is movably connected to the inner wall of the movable groove, and the camera is threaded onto the outer wall of the lead screw.

[0008] Preferably, the top end of the measuring tube is fixedly connected to a second connecting tube, and the bottom end of the measuring tube is fixedly connected to a first connecting tube.

[0009] Preferably, a temperature sensor is installed on the side wall of the magnetic flip display column, and one end of the temperature sensor is inserted into the inner wall of the measuring tube.

[0010] Preferably, the bottom surface of the measuring tube is fixedly connected to a drain valve.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, one end of the external pipe is fixedly connected to the top of the vent pipe, and the other end can be connected to an external dry air source. When water vapor or snow accumulates on the surface of the protective cover and obstructs the view in complex weather, dry gas is introduced through the external pipe. The gas is blown evenly from the nozzle to the outer surface of the transparent plate through the vent pipe, quickly removing water vapor or snow and avoiding obstruction of observation. It also provides image acquisition function for remote observation in conjunction with the camera, solving the problem that operators cannot approach dangerous areas for observation.

[0013] 2. In this utility model, the servo motor, movable groove, and lead screw work together. When the servo motor is started, the lead screw rotates and drives the camera to move up and down along the movable groove, which can cover the entire length of the magnetic flip column and solve the problem of blind spots in the observation of fixed cameras. It is especially suitable for liquid level observation of tall storage tanks. Operators can view the details of the liquid level at different heights through a remote terminal. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a magnetically sensitive bicolor level gauge that is easy to observe is provided for this utility model;

[0015] Figure 2 A schematic diagram of the connection structure of a magnetically sensitive dual-color liquid level gauge camera that is easy to observe is provided for this utility model;

[0016] Figure 3 A side view of the structure of a magnetically sensitive bicolor level gauge that is easy to observe is provided for this utility model.

[0017] Figure 4This invention proposes a magnetically sensitive bicolor level gauge that is easy to observe. Figure 3 Enlarged view of the structure at point A in the middle.

[0018] Legend: 1. Measuring tube; 2. Display mechanism; 21. Magnetic flip display column; 22. Display slot; 23. Servo motor; 24. Movable slot; 25. Lead screw; 26. Vent pipe; 27. External pipe; 28. Air nozzle; 3. Transparent plate; 4. Controller; 5. Camera; 6. Temperature sensor; 7. Connecting pipe one; 8. Connecting pipe two; 9. Drain valve. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a magnetically sensitive dual-color level gauge that is easy to observe. It includes a measuring tube 1, inside which is a magnetic float that rises and falls with the liquid level. A display mechanism 2 is installed on the outer wall of the measuring tube 1. A controller 4 is fixedly connected to the bottom of the display mechanism 2. The controller 4 is a PLC controller that receives signals from various sensors and controls the gas flow of the jet nozzle 28, the lifting and lowering of the camera 5, and other actions to achieve automated observation assistance. The display mechanism 2 includes a magnetic flip display column 21, a display slot 22, a vent pipe 26, an outer pipe 27, and a jet nozzle 28. The display slot 22 is opened on the outer wall of the magnetic flip display column 21. A transparent plate 3 is installed on the inner wall of the display slot 22. Multiple dual-color magnetic flip columns that can rotate around a horizontal axis are arranged inside the display slot 22. The vent pipe 26 is embedded in the outer wall of the magnetic flip display column 21. The outer pipe 27 is fixedly connected to the top of the vent pipe 26. The jet nozzle 28 is opened on the inner side wall of the display slot 22 and communicates with the inside of the vent pipe 26. A camera 5 that can be lifted and moved is installed on one side of the display mechanism 2.

[0022] The specific settings and functions of this embodiment are described in detail below. The magnetic flip display column 21 provides a mounting carrier for the magnetic flip column. The liquid level height is intuitively displayed by changing the color of the magnetic flip column. The high-contrast coating improves the basic visibility. The transparent plate 3 is made of anti-glare tempered glass or polycarbonate plate and is sealed at the opening end of the display tank 22. The edges are sealed with waterproof strips to protect the magnetic flip column inside the display tank 22 from dust and rainwater corrosion. At the same time, the anti-glare design reduces the mirror reflection under strong light and ensures the clarity of close-range observation. One end of the external pipe 27 is fixedly connected to the top of the vent pipe 26, and the other end can be connected to an external dry air source. When water vapor or snow accumulates on the surface of the protective cover and obstructs the view in complex weather, dry gas is introduced through the external pipe 27. The gas is blown evenly from the air nozzle 28 through the vent pipe 26 to the outer surface of the transparent plate 3 to quickly remove water vapor or snow and avoid obstructing the observation. Together with the camera 5, it provides image acquisition function for remote observation and solves the problem that operators cannot approach dangerous areas for observation.

[0023] Example 2: Figure 1 - Figure 4 As shown, the display mechanism 2 also includes a servo motor 23, a movable slot 24, and a lead screw 25. The movable slot 24 is opened on the side wall of the magnetic flip display column 21. The lead screw 25 is rotatably connected to the inner wall of the movable slot 24. The servo motor 23 is installed on the lower outer wall of the magnetic flip display column 21. The output shaft end of the servo motor 23 is connected to the bottom end of the lead screw 25. One end of the camera 5 is movably connected to the inner wall of the movable slot 24. The camera 5 is threaded onto the outer wall of the lead screw 25. The top end of the measuring tube 1 is fixedly connected to a connecting pipe 2 8. The bottom end of the measuring tube 1 is fixedly connected to a connecting pipe 1 7. A temperature sensor 6 is installed on the side wall of the magnetic flip display column 21. One end of the temperature sensor 6 is inserted into the inner wall of the measuring tube 1. The bottom surface of the measuring tube 1 is fixedly connected to a drain valve 9.

[0024] The overall effect of this embodiment is that, through the coordinated use of the servo motor 23, the movable groove 24, and the lead screw 25, when the servo motor 23 is started, the lead screw 25 rotates and drives the camera 5 to move up and down along the movable groove 24, which can cover the entire length of the magnetic flip column 21, solving the problem of blind spots in the observation of fixed cameras. It is especially suitable for liquid level observation of tall storage tanks. Operators can view the details of the liquid level at different heights through a remote terminal. One end of the temperature sensor 6 is inserted into the inner wall of the measuring tube 1 to monitor the temperature of the medium inside the tube in real time. When it is necessary to clean the measuring tube 1 or replace the internal float, the residual medium inside the tube can be drained by opening the drain valve 9 without disassembling the entire measuring tube 1, reducing maintenance time and media waste, and avoiding corrosion of the equipment by the residual medium.

[0025] The usage and working principle of this device are as follows: The measuring tube 1 is sealed and connected to the corresponding interface of the container being measured through the connecting pipe 7 and the connecting pipe 8 to ensure that the measuring tube 1 is connected to the inside of the container. The medium in the container being measured enters the measuring tube 1 through the connecting pipe 7 and the connecting pipe 8. The magnetic float in the measuring tube 1 rises and falls synchronously with the liquid level, and the built-in permanent magnet is used. When the float rises and falls with the liquid level, its magnet is magnetically coupled through the non-magnetic wall of the measuring tube 1 to the dual-color magnetic flip column in the magnetic flip display column 21 in the display mechanism 2, which drives the magnetic flip column of the corresponding height to rotate around the horizontal axis. When the dual-color magnetic flip column rotates, its surface color changes synchronously. The color boundary can be directly observed through the transparent plate 3. This boundary is the real-time liquid level height.

[0026] Connect the external pipe 27 to an external dry air source, and install a valve in the air circuit controlled by the controller 4. Connect the controller 4 to the power supply and the remote monitoring terminal, and debug the image transmission function of the camera 5. For close-range observation, directly observe the color change of the magnetic flip column in the display tank 22 through the anti-glare transparent plate 3. The color change point is the actual liquid level height. For remote observation, send a command to the controller 4 through the remote terminal to start the servo motor 23, drive the lead screw 25 to move the camera 5 up and down along the movable tank 24. The camera 5 collects images of the magnetic flip column at different heights and transmits them to the terminal. The operator can remotely confirm the liquid level.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A magnetic sensitive bicolor liquid level gauge for easy observation, comprising a measuring tube (1) with a magnetic float inside the measuring tube (1) rising and falling with the liquid level, characterized in that: The outer wall of the measuring tube (1) is equipped with a display mechanism (2), and the bottom surface of the display mechanism (2) is fixedly connected to a controller (4). The display mechanism (2) includes a magnetic flip display column (21), a display slot (22), a ventilation pipe (26), an outer pipe (27), and a jet nozzle (28). The display slot (22) is opened on the outer wall of the magnetic flip display column (21). A transparent plate (3) is installed on the inner wall of the display slot (22). Multiple dual-color magnetic flip columns that can rotate around a horizontal axis are arranged inside the display slot (22). The ventilation pipe (26) is embedded in the outer wall of the magnetic flip display column (21). The outer pipe (27) is fixedly connected to the top of the ventilation pipe (26). The jet nozzle (28) is opened on the inner side wall of the display slot (22) and communicates with the inside of the ventilation pipe (26). A camera (5) that can be raised and lowered is installed on one side of the display mechanism (2).

2. A magnetic sensitive dual color liquid level gauge for easy observation according to claim 1, characterized in that: The display mechanism (2) also includes a servo motor (23), a movable slot (24) and a lead screw (25). The movable slot (24) is opened on the side wall of the magnetic flip display column (21). The lead screw (25) is rotatably connected to the inner wall of the movable slot (24). The servo motor (23) is installed on the lower outer wall of the magnetic flip display column (21). The output shaft end of the servo motor (23) is connected to the bottom end of the lead screw (25) for transmission.

3. The magnetically sensitive bicolor level gauge for easy observation according to claim 2, characterized in that: One end of the camera (5) is movably connected to the inner wall of the movable groove (24), and the camera (5) is threaded onto the outer wall of the lead screw (25).

4. A magnetic sensitive dual color liquid level gauge for easy observation according to claim 1, characterized in that: The top end of the measuring tube (1) is fixedly connected to a connecting tube two (8), and the bottom end of the measuring tube (1) is fixedly connected to a connecting tube one (7).

5. A magnetic sensitive dual color liquid level gauge for easy observation according to claim 1, characterized in that: A temperature sensor (6) is installed on the side wall of the magnetic flip display column (21), and one end of the temperature sensor (6) is inserted into the inner wall of the measuring tube (1).

6. A magnetic sensitive dual color liquid level gauge for easy observation according to claim 1, characterized in that: The bottom surface of the measuring tube (1) is fixedly connected to a drain valve (9).

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