Novel liquid level detection device

Abstract

The utility model discloses a novel liquid level detection device, which comprises a mounting rack, a detection module and a measurement module, the detection module is fixedly arranged at the top of the mounting rack, the measurement module comprises a movable rod and a floating part, the movable rod is movably arranged on the mounting rack and is opposite to the detection module up and down, and the floating part is connected with the bottom end of the movable rod. The floating part is arranged in the detected equipment and floats up and down along with the change of the liquid level in the detected equipment, so that the movable rod vertically moves on the mounting frame, and the end part of the top end of the movable rod penetrates through or is far away from the detection module to detect the liquid level in the detected equipment. According to the utility model, the electrical part is not in contact with liquid (oil and liquid), so that the functional problem caused by the fact that a traditional liquid level detection device is in direct contact with an oil layer or is close to the oil layer in the oil-water separator and even is gathered by oil smoke is avoided, and a separated detection mode is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level detection, and in particular to a novel liquid level detection device. Background Art

[0002] Oil level detection in oil tanks or flammable liquid level detection is an important part of many industrial automation control systems. In actual applications, it is necessary to know the oil level in the oil tank or the level of flammable liquid in real time to help take corresponding measures, prevent in advance, prevent unnecessary losses, and avoid affecting daily production and safety issues.

[0003] However, in traditional technologies, when detecting the oil level of an oil tank or the liquid level of a flammable liquid, many types of liquid level gauges are used, mainly float level gauges, where the float is placed outside the electrical pole and inserted into the oil tank. The differential pressure level gauge requires the pressure sensor to be sunk to the bottom of the liquid surface. The above-mentioned traditional liquid level detection device requires the sensor to be placed in the liquid. If it is left there for a long time, the liquid will corrode the detection device, which will lead to inconvenience in installation and potential safety hazards. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a novel liquid level detection device.

[0005] To achieve the above-mentioned purpose, the utility model discloses a novel liquid level detection device, including a mounting frame, a detection module and a measuring module. The detection module is fixedly arranged on the top of the mounting frame, and the measuring module includes a movable rod and a floating component. The movable rod is movably arranged on the mounting frame, and it is opposite to the detection module up and down. The floating component is connected to the bottom end of the movable rod. The floating component is arranged in the detected equipment, and it floats up and down with the change of the liquid level in the detected equipment so that the movable rod moves vertically on the mounting frame, so that the end of the top end of the movable rod passes through or is away from the detection module to detect the liquid level in the detected equipment.

[0006] Further, the detection module includes a shell, an annular sensing element, a circular hole portion and a detection circuit, the circular hole portion is arranged on one side of the shell, the annular sensing element and the detection circuit are respectively fixedly arranged in the shell, the annular sensing element is electrically connected to the signal input and output end of the detection circuit, and the signal output end of the detection circuit is electrically connected to the external controlled device;

[0007] The annular sensing element is arranged concentrically with the circular hole portion, and the top end of the movable rod is movably arranged in the circular hole portion as the liquid level changes.

[0008] Furthermore, the outer contour of the mounting frame is preferably L-shaped, the horizontal section of the mounting frame serves as the first connecting part, and the vertical section thereof serves as the second connecting part, the detection module is fixedly arranged on the second connecting part, and the movable rod is movably arranged on the first connecting part.

[0009] Furthermore, a mounting through hole is provided on the first connecting portion, and the measuring module further comprises a pipe sleeve, and the pipe sleeve is liftably arranged in the mounting through hole.

[0010] Furthermore, a pipe-maintaining through hole is provided in the pipe-maintaining sleeve, and the movable rod is movably arranged in the pipe-maintaining through hole.

[0011] Furthermore, a limiting portion is provided at the end of the top end of the movable rod;

[0012] The diameter of the limiting portion is greater than the diameter of the mounting through hole.

[0013] Furthermore, the pipe sleeve is T-shaped in a vertical section, and a first threaded portion is provided on the outer periphery of the vertical section of the pipe sleeve, and the first threaded portion is threadedly connected to the mounting through hole.

[0014] Furthermore, an adjusting portion is provided on the top of the floating component, a second threaded portion is provided on the outer periphery of the bottom end of the movable rod, and the adjusting portion is threadedly screwed on the second threaded portion.

[0015] Furthermore, the outer side wall of the adjusting portion is provided with an outer hexagon.

[0016] Furthermore, the outer side wall of the adjusting portion is provided with an outer hexagon.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the electrical part of the device does not contact the liquid (oil, liquid), thus avoiding the functional problems caused by the traditional liquid level detection device in the oil-water separator due to direct contact with the oil layer or proximity to the oil layer, or even the accumulation of oil smoke, thereby realizing a separate detection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the overall structure of the utility model;

[0020] Figure 3 (A) is a diagram showing the setting state of the floating component in the utility model when the liquid level does not reach the setting height; Figure 3 (B) is a diagram showing the setting state of the floating component in the utility model when the liquid level reaches the set height. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will be combined with Figure 1-Figure 3 The utility model is further described in detail with reference to the accompanying drawings.

[0022] Reference Figure 1-Figure 2 As shown, a novel liquid level detection device is characterized in that it includes a mounting frame 1, a detection module 2 and a measurement module 3.

[0023] The detection module 2 includes a housing 21, an annular sensing element 22, a circular hole 23 and a detection circuit (not shown in the figure), wherein the circular hole 23 is arranged on one side of the housing, and the circular hole 23 is in conduction with the top and the bottom of the housing 21. The annular sensing element 22 and the detection circuit are respectively fixedly arranged in the housing 21. The annular sensing element 22 is arranged concentrically with the circular hole 23. The annular sensing element 22 is electrically connected to the signal input and output ends of the detection circuit, and the signal output end of the detection circuit is electrically connected to the external controlled device.

[0024] In this embodiment, the annular induction element 22 is an induction coil.

[0025] The outer contour of the mounting frame 1 of this embodiment is preferably L-shaped, the horizontal section of the mounting frame 1 serves as the first connecting portion 11, and the vertical section thereof serves as the second connecting portion 12, and the first connecting portion 11 is provided with a mounting through hole 111. The detection module 2 is fixedly arranged on the second connecting portion 12, specifically, the bottom of the housing 21 is fixedly connected to the top of the second connecting portion 12, and the circular hole portion 23 is opposite to the mounting through hole 111 up and down.

[0026] The measuring module 3 comprises a pipe sleeve 31, a movable rod 32 and a floating component 33. In this embodiment, the floating component 33 is preferably a floating ball.

[0027] The pipe-aligning sleeve 31 is arranged in the installation through hole 111 . A pipe-aligning through hole 311 is arranged on the pipe-aligning sleeve 31 . The center of the pipe-aligning through hole 311 is arranged concentrically with the circular hole portion 23 .

[0028] The movable rod 32 is movably arranged in the pipe through hole 311 , and a limiting portion 321 is arranged at one end of the movable rod 32 . In this embodiment, the limiting portion 321 is formed integrally with the movable rod 32 . The limiting portion 321 is located between the pipe sleeve 31 and the detection module 2 .

[0029] Furthermore, the outer diameter of the limiting portion 321 is larger than the diameter of the pipe main through hole 311. When the bottom of the limiting portion 321 is in contact with the top of the pipe main sleeve 31, the downward displacement of the movable rod 32 is limited to prevent the device from failing.

[0030] The floating component 33 is connected to the other end of the movable rod 32 , and the floating component 33 is located below the pipe sleeve 31 .

[0031] Furthermore, a second threaded portion is disposed on the outer periphery of the other end of the movable rod 32, and an adjusting portion 331 is disposed on the top of the floating component 33. In this embodiment, the adjusting portion 331 is formed integrally with the floating component 33.

[0032] The adjusting portion 331 is provided with a threaded hole extending downward from the top, and the threaded hole is threadedly connected to the second threaded portion.

[0033] Furthermore, an outer hexagon 331 - 1 is provided on the adjusting portion 331 . When in use, a tool is applied to the outer hexagon 331 - 1 and rotated, thereby adjusting the relative position of the adjusting portion 331 on the second threaded portion to fine-tune the setting height of the floating component 33 .

[0034] Furthermore, the pipe sleeve 31 is T-shaped in a vertical section, and a first threaded portion 312 is provided on the outer periphery of the vertical section of the pipe sleeve 31, and the first threaded portion 312 is threadedly connected to the mounting through hole 111. The outer periphery of the horizontal section of the pipe sleeve 31 is rotated to make it rise and fall on the mounting through hole 111, and the setting height of the floating component 33 is adjusted.

[0035] Recombination Figure 3 As shown, during operation, the mounting bracket 1 is fixedly arranged on the top of the detected device, and the floating component 33 is arranged in the detected device. When the liquid level in the detected device rises, the floating component 33 is pushed upward, and the movable rod 32 is driven to slide along the tube positive hole 311, so that the limit portion 321 is penetrated into the circular hole portion 23 to change the magnetic field distribution inside the annular sensing element 22 to cause a voltage change. The voltage change is measured by the detection circuit and outputs an electrical signal to control the action of other components that take the liquid level as the working condition; when the liquid level in the detection device is lower than the preset position, the floating component 33 descends.

[0036] In this embodiment, the detection module cooperates with the liftable movable rod driven by the floating component to transmit a signal, thereby determining whether the liquid level in the detected device reaches the set position.

[0037] Compared with the liquid level detection device in the prior art, the electrical part of the device does not contact the liquid (oil, liquid), avoiding the functional problems caused by the traditional liquid level detection device in the oil-water separator due to direct contact with the oil layer or proximity to the oil layer, or even the accumulation of oil smoke, thus realizing a separate detection device.

[0038] The overall installation of this embodiment is simple and can be directly installed on the existing detected equipment. In actual use, the device is simple, safe and reliable, which improves the user experience.

[0039] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. Any modifications made according to the spirit of the main technical scheme of the utility model should be included in the protection scope of the utility model.

Claims

1. A new type of liquid level detection device, characterized in that: The invention comprises a mounting frame (1), a detection module (2) and a measuring module (3), wherein the detection module (2) is fixedly arranged on the top of the mounting frame (1), and the measuring module (3) comprises a pipe sleeve (31), a movable rod (32) and a floating component (33), wherein the pipe sleeve (31) is adjustably arranged on the mounting frame (1), the movable rod (32) is movably arranged on the pipe sleeve (31) and is vertically opposite to the detection module (2), a limiting portion (321) is arranged at the top of the movable rod (32), and the floating component (33) is connected to the bottom of the movable rod (32), and the floating component (33) is arranged in the detected device and floats up and down with the change of the liquid level in the detected device so that the movable rod (32) moves vertically on the mounting frame (1), so that the limiting portion (321) is passed through the detection module (2) or abuts against the top of the pipe sleeve (31), so as to detect the liquid level in the detected device.

2. The novel liquid level detection device according to claim 1 is characterized in that: The detection module (2) comprises a housing (21), an annular sensing element (22), a circular hole portion (23) and a detection circuit, wherein the circular hole portion (23) is arranged on one side of the housing, the annular sensing element (22) and the detection circuit are respectively fixedly arranged in the housing (21), the annular sensing element (22) is electrically connected to a signal input / output end of the detection circuit, and the signal output end of the detection circuit is electrically connected to an external controlled device; The annular sensing element (22) is arranged concentrically with the circular hole portion (23), and the top end of the movable rod (32) is movably arranged in the circular hole portion (23) as the liquid level changes.

3. The novel liquid level detection device according to claim 1 is characterized in that: The outer contour of the mounting frame (1) is L-shaped, the horizontal section of the mounting frame (1) serves as a first connecting portion (11), and the vertical section of the mounting frame (1) serves as a second connecting portion (12), the detection module (2) is fixedly arranged on the second connecting portion (12), and the movable rod (32) is movably arranged on the first connecting portion (11).

4. The novel liquid level detection device according to claim 3 is characterized in that: The first connecting portion (11) is provided with a mounting through hole (111), and the measuring module (3) further comprises a pipe sleeve (31), wherein the pipe sleeve (31) is arranged in the mounting through hole (111) in a liftable manner.

5. The novel liquid level detection device according to claim 4 is characterized in that: A pipe-aligning through hole (311) is provided in the pipe-aligning sleeve (31), and the movable rod (32) is movably inserted into the pipe-aligning through hole (311).

6. The novel liquid level detection device according to claim 4 is characterized in that: The diameter of the limiting portion (321) is greater than the diameter of the mounting through hole (111).

7. The novel liquid level detection device according to claim 4 is characterized in that: The pipe sleeve (31) is T-shaped in a vertical cross section, and a first threaded portion (312) is provided on the outer periphery of the vertical section of the pipe sleeve (31), and the first threaded portion (312) is threadedly connected to the mounting through hole (111).

8. The novel liquid level detection device according to claim 1 is characterized in that: The top of the floating component (33) is provided with an adjusting portion (331), the outer periphery of the bottom end of the movable rod (32) is provided with a second threaded portion, and the adjusting portion (331) is threadedly screwed onto the second threaded portion.

9. The novel liquid level detection device according to claim 8 is characterized in that: The outer side wall of the adjusting portion (331) is provided with an outer hexagon (331-1).

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