High temperature magnetic float level gauge

CN224650692UActive Publication Date: 2026-08-18TENGZHOU FENGRUI PACKAGING PRODUCTS CO LTD
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Patent Information

Application Number
CN202522333451.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-08-18
Estimated Expiration
2035-11-04

AI Technical Summary

Technical Problem

然而,现有技术中浮子磁铁在持续高温环境下易发生退磁现象,导致磁力衰减,进而引发翻板翻转滞后或失效

Benefits of technology

[0007] The beneficial effects of this utility model are: the utility model is reasonably designed, and by adding heat insulation material to the outside of the float permanent magnet, the high temperature resistance of the permanent magnet in the float is increased, and the high liquid level alarm is activated by the built-in float activation trigger device, which further improves the accuracy of the alarm.

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Abstract

This utility model discloses a high-temperature magnetic float level gauge, comprising a level gauge body, connecting pipes, a float display panel, a level scale plate, a high-temperature resistant float, a drain pipe, a drain valve, a triggering device, and a high-level alarm. Connecting pipes are welded to the upper and lower rear ends of the level gauge body. The float display panel is installed on the front of the level gauge body, and the level scale plate is installed on the right side of the float display panel. A high-temperature resistant float is installed inside the level gauge body. A drain pipe is installed at the center of the bottom of the level gauge body, and a drain valve is installed on the drain pipe. A triggering device is installed at the center of the top of the level gauge body, and a high-level alarm activated by the triggering device is installed on top of the triggering device. This utility model has a reasonable design. By adding heat-insulating material to the permanent magnet of the float, the high-temperature resistance of the permanent magnet in the float is increased. Furthermore, the high-level alarm is activated by the built-in float activating the triggering device, further improving the accuracy of the alarm.
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Description

Technical Field

[0001] This utility model relates to the field of level gauges, and in particular to a high-temperature magnetic float level gauge. Background Technology

[0002] High-temperature magnetic level gauges are widely used in high-temperature environments such as chemical and metallurgical industries. Their core technology involves magnetic coupling between a magnet inside the float and a level plate to visualize the liquid level. However, in existing technologies, the float magnet is prone to demagnetization under sustained high temperatures, leading to magnetic attenuation and consequently causing delays or failures in the level plate's rotation. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature magnetic level gauge to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A high-temperature magnetic float level gauge includes a level gauge body, connecting pipes, a float display panel, a level scale, a high-temperature resistant float, a drain pipe, a drain valve, a triggering device, and a high-level alarm. Connecting pipes are welded to the upper and lower rear ends of the level gauge body. A float display panel is installed on the front of the level gauge body, and a level scale is installed on the right side of the float display panel. A high-temperature resistant float is installed inside the level gauge body. A drain pipe is installed at the center of the bottom of the level gauge body, and a drain valve is installed on the drain pipe. A triggering device is installed at the center of the top of the level gauge body, and a high-level alarm activated by the triggering device is installed on top of the triggering device.

[0005] Preferably, the high-temperature resistant float further includes a hollow buoyancy ring, a heat-insulating filling material, and a permanent magnet. A hollow buoyancy ring is installed around the center of the outer side of the high-temperature resistant float, and a heat-insulating filling material is installed inside the high-temperature resistant float, with a permanent magnet installed at the center of the heat-insulating filling material.

[0006] Preferably, the high-temperature magnetic float level gauge further includes a trigger rod, a baffle, a spring, and a trigger switch. The trigger rod is installed in the center of the trigger device, and a baffle is installed in the center of the trigger rod. The bottom of the trigger rod extends into the upper part of the lower level gauge body, and the trigger rod is limited by the baffle to prevent it from falling into the lower level gauge body. A spring is installed on the baffle. At the bottom of the high level alarm, a trigger switch is installed inside the trigger device, and the trigger switch can be triggered by the trigger rod being lifted by the rise of the high-temperature resistant float.

[0007] The beneficial effects of this utility model are: the utility model is reasonably designed, and by adding heat insulation material to the outside of the float permanent magnet, the high temperature resistance of the permanent magnet in the float is increased, and the high liquid level alarm is activated by the built-in float activation trigger device, which further improves the accuracy of the alarm. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the high-temperature magnetic level gauge of this utility model; Figure 2 This is a schematic diagram of the internal structure of the high-temperature magnetic level gauge of this utility model.

[0009] In the diagram: 1. Level gauge body, 2. Connecting pipe, 3. Flip display panel, 4. Level scale plate, 5. High-temperature resistant float, 6. Drainage pipe, 7. Drainage valve, 8. Triggering device, 9. High level alarm, 10. Hollow buoyancy ring, 11. Thermal insulation filling material, 12. Permanent magnet, 13. Trigger rod, 14. Baffle, 15. Spring, 16. Trigger switch. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-2 As shown, a high-temperature magnetic float level gauge includes a level gauge body 1, a connecting pipe 2, a float display panel 3, a level scale plate 4, a high-temperature resistant float 5, a drain pipe 6, a drain valve 7, a triggering device 8, and a high-level alarm 9. The connecting pipe 2 is welded to both the upper and lower ends of the rear side of the level gauge body 1. The float display panel 3 is installed on the front side of the level gauge body 1. The level scale plate 4 is installed on the right side of the float display panel 3. The high-temperature resistant float 5 is installed inside the level gauge body 1. The drain pipe 6 is installed at the center of the bottom of the level gauge body 1. The drain valve 7 is installed on the drain pipe 6. The triggering device 8 is installed at the center of the top of the level gauge body 1. The high-level alarm 9, which is activated by the triggering device 8, is installed on the top of the triggering device 8. The high-temperature resistant float 5 also includes a hollow buoyancy ring 10, a heat-insulating filling material 11, and a permanent magnet 12. The hollow buoyancy ring 10 is installed around the center of the outer side of the high-temperature resistant float 5. The heat-insulating filling material 11 is installed inside the high-temperature resistant float 5, and a permanent magnet 12 is installed at the center of the heat-insulating filling material 11. The high-temperature magnetic level gauge also includes a trigger rod 13, a baffle 14, a spring 15, and a trigger switch 16. The trigger rod 13 is installed at the center of the trigger device 8. The baffle 14 is installed at the center of the trigger rod 13, and the bottom of the trigger rod 13 extends into the upper part of the lower level gauge body 1. The trigger rod 13 is limited by the baffle 14 to prevent it from falling into the lower level gauge body 1. The spring 15 is installed on the baffle 14. The trigger switch 16 is installed at the bottom of the high level alarm 9, inside the trigger device 8. The trigger switch 16 can be triggered by the trigger rod 13 being lifted by the rising of the high-temperature resistant float 5.

[0011] The working principle of this utility model is as follows: The liquid level gauge body 1 is connected to the flange on the tank through two connecting pipes 2. The liquid in the tank enters the liquid level gauge body 1 through the bottom connecting pipe 2, and lifts the high-temperature resistant float 5 by buoyancy. During the rising process, the high-temperature resistant float 5 flips the flip plate on the flip plate display plate 3 by magnetic force, and observes the liquid level in the tank through the side liquid level scale plate 4. When the liquid level is high, the high-temperature resistant float 5 rises and lifts the trigger rod 13 on the trigger device 8. The top of the trigger rod 13 contacts the trigger switch 16 and activates the high liquid level alarm 9.

[0012] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary in all respects, and thus equivalent variations within the scope of this invention are included within its scope.

Claims

1. A high-temperature magnetic float level gauge, comprising a level gauge body (1), a connecting pipe (2), a float display panel (3), a level scale plate (4), a high-temperature resistant float (5), a drain pipe (6), a drain valve (7), a triggering device (8), and a high level alarm (9), characterized in that: The liquid level gauge body (1) has connecting pipes (2) welded to both the upper and lower ends of the rear side. The liquid level gauge body (1) has a flip-up display plate (3) installed on the front side. The flip-up display plate (3) has a liquid level scale plate (4) installed on the right side. The liquid level gauge body (1) has a high temperature resistant float (5) installed inside. The liquid level gauge body (1) has a drain pipe (6) installed at the bottom center. The drain pipe (6) has a drain valve (7) installed on it. The liquid level gauge body (1) has a trigger device (8) installed at the top center. The trigger device (8) has a high liquid level alarm (9) activated by the trigger device (8) installed on its top.

2. The high-temperature magnetic level gauge according to claim 1, characterized in that: The high-temperature resistant float (5) also includes a hollow buoyancy ring (10), a heat insulation filling material (11), and a permanent magnet (12). A hollow buoyancy ring (10) is installed around the center of the outer side of the high-temperature resistant float (5). A heat insulation filling material (11) is installed inside the high-temperature resistant float (5), and a permanent magnet (12) is installed in the center of the heat insulation filling material (11).

3. The high-temperature magnetic level gauge according to claim 2, characterized in that: The high-temperature magnetic float level gauge also includes a trigger rod (13), a baffle (14), a spring (15), and a trigger switch (16). The trigger rod (13) is installed in the center of the trigger device (8). The baffle (14) is installed in the center of the trigger rod (13). The bottom of the trigger rod (13) extends into the upper part of the lower level gauge body (1). The trigger rod (13) is limited by the baffle (14) to prevent it from falling into the lower level gauge body (1). The spring (15) is installed on the baffle (14). The trigger switch (16) is installed at the bottom of the high level alarm (9) inside the trigger device (8). The trigger switch (16) can be triggered by the trigger rod (13) driven by the rise of the high-temperature float (5).