Temperature-resistant high-precision side-mounted magnetic liquid level meter
By using stainless steel level tube body and polypropylene magnetic float ball, the measurement error and corrosion resistance problems in high-temperature environments are solved, and high-precision level measurement and remote monitoring are realized. It is suitable for liquid level measurement and control in petroleum, chemical industry, pharmaceutical, food and other industries.
Patent Information
- Application Number
- CN202422490897.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The existing side-mounted magnetic level meter has poor working stability in high temperature environments, prone to measurement errors or damage, and insufficient corrosion resistance, which cannot meet the needs of industrial applications for high-precision and remote monitoring.
It uses stainless steel level tube body and polypropylene magnetic float ball, combined with high-precision level sensor and magnetic flap ruler to achieve accurate measurement and display of liquid levels, with high temperature and corrosion resistance, and remote monitoring is achieved through magnetic coupling.
Maintain measurement accuracy in high temperature environments, extend equipment life, and have remote monitoring functions to meet the application needs of industrial automation and remote control systems.
Smart Images

Figure CN223204989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of magnetic liquid level gauges, in particular to a temperature-resistant and high-precision side-mounted magnetic liquid level gauge. Background Art
[0002] As an important industrial measuring instrument, side-mounted magnetic level gauges are widely used in liquid level measurement and control in industries such as petroleum, chemical, pharmaceutical, and food. Their basic principle is that a magnetic float moves up and down with changes in liquid level, and then drives a magnetic flap to flip through magnetic coupling to visually display the liquid level. With the continuous development of industrial technology, higher requirements are placed on liquid level measurement accuracy, high temperature resistance, corrosion resistance, and remote monitoring. Some existing side-mounted magnetic level gauges have poor operating stability in high-temperature environments and are prone to measurement errors or damage. This is mainly because the internal materials of the level gauge cannot withstand high temperatures, resulting in performance degradation or failure. When handling corrosive liquids, the corrosion resistance of existing side-mounted magnetic level gauges may not meet the requirements. Prolonged contact with corrosive media will cause corrosion and damage to the internal parts of the level gauge, affecting measurement accuracy and service life. Some side-mounted magnetic level gauges currently on the market lack remote monitoring functions and cannot achieve real-time data transmission and remote monitoring. This limits the application scope of level gauges in industrial automation and remote control systems. To address this issue, we propose a high-precision, temperature-resistant side-mounted magnetic level gauge. Utility Model Content
[0003] (1) Technical problems solved
[0004] In view of the deficiencies in the prior art, the utility model provides a temperature-resistant and high-precision side-mounted magnetic level gauge, which solves the above-mentioned problems.
[0005] (2) Technical solution
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a temperature-resistant, high-precision side-mounted magnetic liquid level gauge, comprising a liquid level tube body, a liquid inlet, a liquid outlet, a magnetic flip scale, a liquid level sensor, a first flange, a second flange, a first fixing buckle and a second fixing buckle. The top of the liquid level tube body is fixedly mounted with the first flange, the top of the first flange is fixedly mounted with the second flange, the top of the second flange is provided with a liquid level sensor, a magnetic flip scale is provided on one side of the liquid level tube body, an opening is provided on the side of the liquid level tube body close to the first flange to form a liquid outlet, and an opening is provided on the side of the liquid level tube body away from the liquid outlet to form a liquid inlet, and the second fixing buckle and the first fixing buckle are respectively provided on the sides of the liquid level tube body close to the liquid inlet and the liquid outlet.
[0007] Preferably, the magnetic flip scale includes a protective plate, a magnetic flip plate and a base. The side of the base close to the liquid level tube body is provided with a groove corresponding to the arc surface of the liquid level tube body. The side of the base facing away from the liquid level tube body is provided with a groove, and multiple groups of magnetic flip plates are arranged inside. The multiple groups of magnetic flip plates are arranged longitudinally. A protective plate is fixedly installed on the surface of the side of the base facing away from the liquid level tube body. The base in the magnetic flip scale is fixedly installed with the liquid level tube body by a first fixing buckle and a second fixing buckle.
[0008] Preferably, the protective plate is made of acrylic material, and a set of rotating shafts are rotatably installed on both sides of the multiple groups of magnetic flaps. The multiple groups of magnetic flaps are rotatably installed inside the groove of the base away from the liquid level tube body through the rotating shafts on both sides.
[0009] Preferably, the magnetic flip plate is a cylindrical magnetic flip plate, and the arc surface of the magnetic flip plate cylinder is white and red.
[0010] Preferably, a float rod is fixedly installed at the bottom end of the liquid level sensor, a second flange is provided on the side of the float rod close to the liquid level sensor, the float rod extends through one side of the second flange and extends downward, and the liquid level sensor is fixedly installed on the top of the second flange through the float rod.
[0011] Preferably, a magnetic float is slidably engaged inside the liquid level tube body, the middle of the magnetic float is hollowed out, and the other end of the float rod extends downward and passes through the middle of the magnetic float and is fixedly connected to the bottom end of the liquid level tube body.
[0012] Preferably, the magnetic float is made of polypropylene and is provided with a permanent magnet inside, and the shell of the liquid level tube is made of stainless steel.
[0013] (3) Beneficial effects
[0014] Compared with the existing technology, the utility model provides a temperature-resistant and high-precision side-mounted magnetic level gauge with the following beneficial effects:
[0015] 1. This temperature-resistant, high-precision side-mounted magnetic level gauge and level sensor, combined with the precise position indication of a magnetic float, enables accurate measurement of liquid levels. This is crucial for industrial processes requiring strict level control. The magnetic flip scale design allows level changes to be intuitively displayed through color changes. This visual indication allows operators to quickly and accurately understand the current level.
[0016] 2. The temperature-resistant and high-precision side-mounted magnetic level gauge has a level tube made of stainless steel and has good high-temperature resistance. This enables the level gauge to work stably in a high-temperature environment without affecting the measurement accuracy or causing equipment damage due to temperature changes. It also has good corrosion resistance, which means that the level gauge can resist the erosion of various corrosive liquids and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the three-dimensional main view structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the liquid level sensor of the utility model;
[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the magnetic flip scale of the utility model;
[0022] Figure 6 This is a schematic diagram of the magnetic flap structure of the utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the white surface magnetic flip plate of the utility model.
[0024] In the figure: 1. Liquid level tube body; 2. Liquid inlet; 3. Liquid outlet; 4. Magnetic flip scale; 5. Protective plate; 6. Magnetic flip plate; 7. Base; 8. Liquid level sensor; 9. Float rod; 10. First flange; 11. Second flange; 12. First fixing buckle; 13. Second fixing buckle; 14. Rotating shaft; 15. Magnetic float. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] See also Figure 1-7A temperature-resistant and high-precision side-mounted magnetic liquid level gauge comprises a liquid level tube body 1, a liquid inlet 2, a liquid outlet 3, a magnetic flip scale 4, a liquid level sensor 8, a first flange 10, a second flange 11, a first fixing buckle 12 and a second fixing buckle 13. The top of the liquid level tube body 1 is fixedly mounted with the first flange 10, the top of the first flange 10 is fixedly mounted with the second flange 11, the top of the second flange 11 is provided with the liquid level sensor 8, a magnetic flip scale 4 is provided on one side of the liquid level tube body 1, an opening is provided on the side of the liquid level tube body 1 close to the first flange 10 to form a liquid outlet 3, and an opening is provided on the side of the liquid level tube body 1 away from the liquid outlet 3 to form a liquid inlet 2, and a second fixing buckle 13 and a first fixing buckle 12 are respectively provided on the sides of the liquid level tube body 1 close to the liquid inlet 2 and the liquid outlet 3.
[0027] Furthermore, the magnetic flip scale 4 includes a protective plate 5, a magnetic flip plate 6 and a base 7. The side of the base 7 close to the liquid level tube body 1 is provided with a groove corresponding to the arc surface of the liquid level tube body 1, and the side of the base 7 facing away from the liquid level tube body 1 is provided with a groove, and multiple groups of magnetic flip plates 6 are arranged inside, and the multiple groups of magnetic flip plates 6 are arranged longitudinally. The protective plate 5 is fixedly installed on the surface of the side of the base 7 facing away from the liquid level tube body 1. The base 7 in the magnetic flip scale 4 is fixedly installed with the liquid level tube body 1 through a first fixing buckle 12 and a second fixing buckle 13.
[0028] Furthermore, the protective plate 5 is made of acrylic material, and a set of rotating shafts 14 are rotatably installed on both sides of the multiple sets of magnetic flaps 6. The multiple sets of magnetic flaps 6 are rotatably installed in the groove of the base 7 away from the liquid level tube body 1 through the rotating shafts 14 on both sides.
[0029] Furthermore, the magnetic flip plate 6 is a cylindrical magnetic flip plate, and the arc surface color of the magnetic flip plate 6 cylinder is divided into white and red.
[0030] Furthermore, a float rod 9 is fixedly installed at the bottom end of the liquid level sensor 8, and a second flange 11 is provided on the side of the float rod 9 close to the liquid level sensor 8. The float rod 9 extends through one side of the second flange 11 and extends downward. The liquid level sensor 8 is fixedly installed on the top of the second flange 11 through the float rod 9.
[0031] Furthermore, a magnetic float 15 is slidably engaged inside the liquid level tube body 1 , the middle of the magnetic float 15 is hollowed out, and the other end of the float rod 9 extends downward and passes through the middle of the magnetic float 15 and is fixedly connected to the bottom end of the liquid level tube body 1 .
[0032] Furthermore, the magnetic float 15 is made of polypropylene and has a permanent magnet disposed therein, and the shell of the liquid level tube 1 is made of stainless steel.
[0033] Working principle: There is a magnetic float 15 inside the level gauge. The float is made of polypropylene and has good temperature resistance and chemical stability. At the same time, a permanent magnet is embedded inside to make it magnetic. The float floats up and down freely according to the height of the liquid level in the container and always maintains the same height as the liquid level. When the float moves up and down with the change of liquid level, the permanent magnet inside it will affect the external magnetic scale 4 through magnetic coupling. The magnetic scale consists of a base 7, a magnetic flap 6 and a protective plate 5. The magnetic flap 6 is installed in the recess of the base 7 through the rotating shaft 14. The magnetic flap 6 is in the groove and can be flipped under the action of the magnetic field. The arc surface of the magnetic flap 6 is designed to be two-color, white and red. When the permanent magnet in the float ball approaches, the magnetic flap at the corresponding position will flip due to the action of the magnetic field, changing from one color to another, from white to red, thereby visually forming a clear liquid level indication line. The liquid level sensor 8 is connected to the float ball through the float ball rod 9. The float ball rod 9 passes through the second flange 11 and extends to the inside of the liquid level tube body 1. It is fixedly connected to the magnetic float ball 15. As the float ball moves up and down, the float ball rod 9 also moves accordingly. The liquid level sensor 8 is a liquid level sensor having a plurality of internal and external components, and the plurality of internal components are connected to the liquid level sensor 8. The plurality of internal components are connected to the liquid level sensor 8 and the plurality of internal components are connected to the liquid level sensor 8. The plurality of internal components are connected to the liquid level sensor 8 and the plurality of internal components are connected to the liquid level sensor 8. The plurality of internal components are connected to the liquid level sensor 8 and the plurality of internal components are connected to the liquid level sensor 8. The plurality of internal components are connected to the liquid level sensor 8 and the plurality of internal components are connected to the liquid level sensor 8.
[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A heat-resistant, high-precision side-mounted magnetic liquid level gauge, comprising a liquid level tube (1), a liquid inlet (2), a liquid outlet (3), a magnetic flip scale (4), a liquid level sensor (8), a first flange (10), a second flange (11), a first fixing buckle (12), and a second fixing buckle (13), characterized in that: A first flange (10) is fixedly mounted on the top of the liquid level tube body (1), a second flange (11) is fixedly mounted on the top of the first flange (10), a liquid level sensor (8) is provided on the top of the second flange (11), a magnetic scale (4) is provided on one side of the liquid level tube body (1), an opening is provided on the side of the liquid level tube body (1) close to the first flange (10) to form a liquid outlet (3), an opening is provided on the side of the liquid level tube body (1) away from the liquid outlet (3) to form a liquid inlet (2), and a second fixing buckle (13) and a first fixing buckle (12) are respectively provided on the side of the liquid level tube body (1) close to the liquid inlet (2) and the liquid outlet (3).
2. The temperature-resistant, high-precision side-mounted magnetic level gauge according to claim 1, characterized in that: The magnetic flip scale (4) comprises a protective plate (5), a magnetic flip plate (6) and a base (7); a groove corresponding to the arc surface of the liquid level tube (1) is provided on the side of the base (7) close to the liquid level tube (1); a groove is provided on the side of the base (7) away from the liquid level tube (1), and multiple groups of magnetic flip plates (6) are arranged inside, and the multiple groups of magnetic flip plates (6) are arranged in a longitudinal direction; a protective plate (5) is fixedly installed on the surface of the side of the base (7) away from the liquid level tube (1); the base (7) in the magnetic flip scale (4) and the liquid level tube (1) are fixedly installed together by a first fixing buckle (12) and a second fixing buckle (13).
3. The temperature-resistant, high-precision side-mounted magnetic level gauge according to claim 2, characterized in that: The protective plate (5) is made of acrylic material, and a set of rotating shafts (14) are rotatably mounted on both sides of the multiple sets of magnetic flaps (6). The multiple sets of magnetic flaps (6) are rotatably mounted inside the groove of the base (7) away from the liquid level tube body (1) through the rotating shafts (14) on both sides.
4. The temperature-resistant, high-precision side-mounted magnetic level gauge according to claim 3, characterized in that: The magnetic flip plate (6) is a cylindrical magnetic flip plate, and the colors of the cylindrical arc surface of the magnetic flip plate (6) are white and red.
5. The temperature-resistant, high-precision side-mounted magnetic level gauge according to claim 1, characterized in that: A float rod (9) is fixedly mounted on the bottom end of the liquid level sensor (8); a second flange (11) is provided on the side of the float rod (9) close to the liquid level sensor (8); the float rod (9) extends through one side of the second flange (11) and extends downward; the liquid level sensor (8) is fixedly mounted on the top end of the second flange (11) via the float rod (9).
6. The temperature-resistant, high-precision side-mounted magnetic level gauge according to claim 5, characterized in that: The liquid level tube body (1) is internally slidably engaged with a magnetic float (15), the middle portion of which is hollowed out, and the other end of the float rod (9) extends downward and passes through the middle portion of the magnetic float (15) and is fixedly connected to the bottom end of the liquid level tube body (1).
7. The temperature-resistant, high-precision side-mounted magnetic level gauge according to claim 6, characterized in that: The magnetic float (15) is made of polypropylene and has a permanent magnet inside. The shell of the liquid level tube (1) is made of stainless steel.