Sealing buoy liquid level meter based on magnetic coupling
By using a magnetically coupled sealed float level gauge, the corrosion and gas leakage problems of the float level gauge are solved through the design of magnetic float and slider coupling, achieving stable measurement and low maintenance.
Patent Information
- Application Number
- CN202320874115.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-19
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2033-04-19
AI Technical Summary
The level sensing part of existing float level gauges is directly exposed to the liquid being measured, which leads to corrosion and the volatilization of harmful gases, affecting the air quality of the working environment. In addition, the float is greatly affected by the fluctuation of the liquid surface.
The sealed float level gauge with magnetic coupling transmits the level signal by coupling a magnetic float and a magnetic slider, and connecting a steel wire rope through a guide tube and pulley assembly. This avoids contact between the steel wire rope and the medium, and the float is mounted on the guide tube and is not affected by liquid level fluctuations.
It effectively prevents the leakage of harmful gases, the wire rope does not stick to crystals, it is virtually maintenance-free, the measurement is accurate and reliable, the float moves stably, and the maintenance requirements are reduced.
Smart Images
Figure CN223883048U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid level gauge technical field, provide a sealed float liquid level gauge based on magnetic coupling especially, effectively prevent harmful gas leakage and cause environmental pollution. BACKGROUND
[0002] The existing float liquid level gauge is a commonly used liquid level indication structure, usually comprising a liquid level sensing part and a liquid level display part, the liquid level sensing part senses the change of the liquid level, and the signal is transmitted to the liquid level display part, and the specific value of the liquid level is displayed through the liquid level display part. The liquid level sensing part of the existing float liquid level gauge is usually directly exposed in the measured liquid, and the measured liquid can be leaked out through the connection structure of the liquid level sensing part and the liquid level display part, which can cause corrosion of the liquid level sensing part and volatilization of harmful gas, affect the air quality of the working environment and cause air pollution. In addition, the float ball of the existing liquid level sensing part is usually freely floating on the liquid surface, which is greatly affected by the liquid surface fluctuation. SUMMARY
[0003] In order to solve the above technical problems, the utility model provides a sealed float liquid level gauge based on magnetic coupling.
[0004] The utility model is realized in this way, provide a sealed float liquid level gauge based on magnetic coupling, including magnetic float ball, guide pipe, magnetic slider and liquid level display structure, the guide pipe upper end protrudes the jar body and is connected on the jar body, the lower end is inserted to below the lowest liquid level of jar body, and the guide pipe lower end is equipped with float ball limiting structure, the middle of magnetic float ball is equipped with through hole, the guide pipe passes through magnetic float ball through through hole, the magnetic slider is set up in the guide pipe inside and can move up and down, the magnetic slider is coupled with magnetic float ball, the upper end of magnetic slider is connected with pull rope, and the pull rope is connected with liquid level display structure through the guide pipe.
[0005] Preferably, a magnetic steel ring groove is arranged on the inner wall of the through hole of the magnetic float ball, and an annular magnetic steel is arranged in the magnetic steel ring groove, and the annular magnetic steel is coupled with the magnetic slider.
[0006] Further preferably, the float ball limiting structure comprises a float ball baffle, and the float ball baffle is sealingly and fixedly connected to the lower end of the guide pipe.
[0007] Further preferably, the liquid level display structure is a pointer liquid level display structure or a magnetic flap liquid level display structure.
[0008] Further preferably, the liquid level display structure is arranged on the side of the tank body, the upper end of the guide pipe is connected with the liquid level display structure through a pulley assembly, the pulley assembly comprises two pulley boxes, each of which is provided with a fixed pulley, one pulley box is fixedly connected to the upper end of the guide pipe, the other pulley box is fixedly connected to the upper end of the liquid level display structure, the two pulley boxes are connected through a pulley box connecting pipe, and the upper end of the pull rope passes through the pulley box at the upper end of the guide pipe, the pulley box connecting pipe and the pulley box at the upper end of the liquid level display structure in sequence and is then connected with the liquid level display structure.
[0009] Further preferably, a guide pipe mounting flange is arranged on the tank body, and a through hole is arranged on the guide pipe mounting flange, the guide pipe passes through the through hole and is sealingly and fixedly connected with the guide pipe mounting flange.
[0010] Compared with the prior art, the utility model has the advantages that:
[0011] The sealing float level meter based on magnetic coupling can effectively prevent harmful gas from leaking from the instrument installation port, the steel wire rope and the pulley are not in contact with the medium and the medium volatile gas, the steel wire rope is not sticky and hung with crystalline substances, and is almost maintenance-free; the float ball is installed on the steel pipe and is not affected by liquid surface fluctuation, the float ball moves stably up and down, and the steel wire rope cannot be separated from the pulley groove. BRIEF DESCRIPTION OF DRAWINGS
[0012] The utility model will be further described in detail in combination with the drawings and embodiments:
[0013] Figure 1 It is an overall installation structure schematic view of the utility model. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model will be further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.
[0015] REFERENCE Figure 1 The utility model provides a kind of sealing float level meter based on magnetic coupling, including magnetic float ball 1, guide pipe 2, magnetic slider 3 and liquid level display structure 11, guide pipe 2 upper end extends out of tank body 4 and is connected in tank body 4, lower end extends into to below the lowest liquid level of tank body 4, and guide pipe 2 lower end is equipped with float ball limiting structure, magnetic float ball 1 middle is equipped with through hole, guide pipe 2 passes through magnetic float ball 1 by through hole, magnetic slider 3 is movably arranged in guide pipe 2, magnetic slider 3 is coupled with magnetic float ball 1, magnetic slider 3 upper end is connected with pull rope 5, and pull rope 5 is connected with liquid level display structure 11 by guide pipe 2.
[0016] When the liquid level in the tank 4 changes, the magnetic floating ball 1 moves up and down with the liquid level, the magnetic floating ball 1 couples the magnetic sliding block 3, the magnetic sliding block 3 moves up and down under the driving of the magnetic floating ball 1, the magnetic sliding block 3 pushes or pulls the pull rope 5, the pull rope 5 transmits the signal to the liquid level display structure 11, and the liquid level display structure 11 displays the liquid level. In order to prevent the magnetic sliding block 3 from being affected by air pressure when moving downward in the guide pipe 2, an air pressure balance hole is arranged on the magnetic sliding block 3 in the vertical direction.
[0017] As a specific coupling mode of the magnetic floating ball 1 and the magnetic sliding block 3, a magnetic steel ring groove is arranged on the inner wall of the through hole of the magnetic floating ball 1, an annular magnetic steel 6 is arranged in the magnetic steel ring groove, and the annular magnetic steel 6 is coupled with the magnetic sliding block 3.
[0018] As a specific implementation mode of the floating ball limiting structure, the floating ball limiting structure comprises a floating ball baffle 7, and the floating ball baffle 7 is sealingly and fixedly connected to the lower end of the guide pipe 2.
[0019] Preferably, the liquid level display structure 11 is a pointer liquid level display structure or a magnetic flap liquid level display structure.
[0020] In order to facilitate the connection of the liquid level display structure 11, the liquid level display structure 11 is arranged on the side of the tank 4, the upper end of the guide pipe 2 is connected with the liquid level display structure 11 through a pulley assembly, the pulley assembly comprises two pulley boxes 12, each of which is provided with a fixed pulley 8, one pulley box 12 is fixedly connected to the upper end of the guide pipe 2, and the other pulley box 12 is fixedly connected to the upper end of the liquid level display structure 11, the two pulley boxes 12 are connected through a pulley box connecting pipe 9, and the upper end of the pull rope 5 passes through the pulley box 12 at the upper end of the guide pipe 2, the pulley box connecting pipe 9 and the pulley box 12 at the upper end of the liquid level display structure 11 in sequence, and is connected with the liquid level display structure 11.
[0021] In order to facilitate the connection of the guide pipe 2 on the tank 4, a guide pipe mounting flange 8 is arranged on the tank 4, the guide pipe mounting flange 8 is provided with a through hole, and the guide pipe 2 passes through the through hole and is sealingly and fixedly connected with the guide pipe mounting flange 8.
[0022] Preferably, the floating ball is generally a large floating ball with a diameter of 400 mm, and the arrangement of the large-volume floating ball can effectively overcome the influence of some harmful factors such as medium sticking on the guide pipe 2 on the reliability of the instrument.
[0023] When the utility model is installed on the tank 4, the following steps are included (taking the pointer liquid level display structure as an example):
[0024] 1. Install the floating ball 1 and the guide pipe 2.
[0025] Install the float ball 1 on the guide pipe 2 according to the direction indicated by the float ball, and then install the float ball limiting structure at the lower end of the guide pipe 2, i.e. fix the float ball baffle 7 at the lower end of the guide pipe 2, fix the guide pipe 2 with the tank body 4, and install the pulley box 12 on the guide pipe 2;
[0026] 2. Install the liquid level display structure 11:
[0027] The liquid level display structure 11 comprises a liquid level display panel and a pointer, another pulley box 12 is installed above the liquid level display structure, the liquid level display panel is installed on the tank body 4 through a clamp plate, and the two pulley boxes 12 are basically at the same height;
[0028] 3. Measure the distance between the two pulley boxes 12, and make and install the pulley box connecting pipe 9;
[0029] 4. Determine the length of the pull rope 5, install the magnetic slider 3, and the pull rope 5 is a steel wire rope:
[0030] 1) When the tank is empty: fix one end of the steel wire rope with the pointer, place the pointer at the full-scale position, determine the length of the steel wire rope when the float ball 1 is at the full tank position through the pulley box 12 and the pulley box connecting pipe 9, etc., and cut the steel wire rope. Install the other end of the steel wire rope on the magnetic slider 3, slowly put the magnetic slider 3 into the guide pipe 2 until the magnetic slider 3 is coupled with the float ball 1, and ensure that the steel wire rope cannot slip off during installation and that the steel wire rope is fixed well;
[0031] 2) When the liquid level is above half of the tank: install one end of the steel wire rope on the magnetic slider 3, slowly put the magnetic slider 3 into the guide pipe 2 until the magnetic slider 3 is coupled with the float ball 1, actually measure the position of the liquid surface of the tank, and determine the height of the liquid level. The position of the pointer has been determined, the length of the steel wire rope is determined and cut through the pulley box 12 and the pulley box connecting pipe 9, etc., and the other end of the steel wire rope is fixed with the pointer. Ensure that the steel wire rope cannot slip off during installation and that the steel wire rope is fixed well;
[0032] 5. Check whether the steel wire rope is at the middle position of the two fixed pulleys 8, install the cover of the pulley box 12, and tighten all fasteners, and the installation is completed.
[0033] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.
Claims
1. A sealed float level gauge based on magnetic coupling, characterized in that, It includes magnetic float ball (1), guide pipe (2), magnetic slider (3) and liquid level display structure (11), the upper end of guide pipe (2) extends out of tank body (4) and is connected on tank body (4), the lower end extends into below the lowest liquid level of tank body (4), and the lower end of guide pipe (2) is equipped with float ball limiting structure, the middle of magnetic float ball (1) is equipped with through hole, guide pipe (2) passes through magnetic float ball (1) through through hole, magnetic slider (3) is movably arranged in guide pipe (2), magnetic slider (3) is coupled with magnetic float ball (1), the upper end of magnetic slider (3) is connected with pull rope (5), and pull rope (5) is connected with liquid level display structure (11) by passing out of guide pipe (2).
2. The magnetically coupled sealed float level gauge according to claim 1, characterized in that, The through hole inner wall of the magnetic float ball (1) is provided with a magnetic steel ring groove, and an annular magnetic steel (6) is arranged in the magnetic steel ring groove, and the annular magnetic steel (6) is coupled with the magnetic slider (3).
3. The magnetically coupled sealed float level gauge according to claim 1, wherein, The float ball limiting structure includes a float ball baffle (7) sealingly and fixedly connected to the lower end of the guide pipe (2).
4. The magnetically coupled sealed float level gauge according to claim 1, wherein, The liquid level display structure (11) is a pointer liquid level display structure or a magnetic flap liquid level display structure.
5. The magnetically coupled sealed float level gauge according to claim 1, wherein, The liquid level display structure (11) is arranged on the side of the tank body (4), and the upper end of the guide pipe (2) is connected with the liquid level display structure (11) through a pulley assembly, the pulley assembly includes two pulley boxes (12), each provided with a fixed pulley (8) in the pulley box (12), one pulley box (12) is fixedly connected to the upper end of the guide pipe (2), and the other pulley box (12) is fixedly connected to the upper end of the liquid level display structure (11), the two pulley boxes (12) are connected through a pulley box connecting pipe (9), and the upper end of the pull rope (5) sequentially passes through the pulley box (12) at the upper end of the guide pipe (2), the pulley box connecting pipe (9) and the pulley box (12) at the upper end of the liquid level display structure (11), and then is connected with the liquid level display structure (11).
6. The magnetically coupled sealed float liquid level meter of claim 1, wherein, A guide pipe mounting flange (10) is arranged on the tank body (4), the guide pipe mounting flange (10) is provided with a through hole, and the guide pipe (2) passes through the through hole and is sealingly and fixedly connected with the guide pipe mounting flange (10).