A corrosion-proof liquid level indicator for sulfuric acid storage tanks

Abstract

The utility model discloses a kind of anticorrosive liquid level indicator for sulfuric acid storage tank, belong to sulfuric acid storage tank liquid level indicator technical field, including fixed frame, the inner wall of fixed frame is rotatably connected with opening and closing plate, the upper surface of opening and closing plate is fixedly connected with positioning frame, the inner wall of positioning frame is fixedly connected with wiping pad, the inner wall of fixed frame is fixedly connected with servo motor, the output end of servo motor power is fixedly connected with worm. The anticorrosive liquid level indicator for sulfuric acid storage tank, by setting rotatable opening and closing plate, positioning frame and wiping pad, the effective protection of liquid level indicator probe is realized, when not using, opening and closing plate can be closed, probe is shielded, avoid its long time exposure in corrosive steam, to prolong the service life of equipment, second servo motor driven worm, worm wheel and rotating cylinder system, so that opening and closing plate can be flexibly rotated, it is convenient to operate, the setting of steel wire rope ensures the stable connection of positioning frame and opening and closing plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of sulfuric acid storage tank level indicators, and particularly relates to a corrosion-resistant level indicator for sulfuric acid storage tanks. Background Technology

[0002] A sulfuric acid storage tank level indicator is a device used to monitor the liquid level in a sulfuric acid storage tank. It can reflect the changes in the liquid level of sulfuric acid in the tank in real time and accurately. Its design fully considers the strong corrosiveness and other physical properties of sulfuric acid, ensuring stable operation under complex working conditions and providing a guarantee for production safety.

[0003] Currently, while existing sulfuric acid storage tank level indicators can measure the liquid level, the evaporation of the liquid inside the tank easily generates corrosive vapors. These vapors can adhere to the probe of the level indicator, corroding it and significantly reducing its lifespan. Furthermore, the lack of protection when not in use means that prolonged contact with corrosive vapors also reduces the lifespan of the level indicator.

[0004] To address this issue, we propose a corrosion-resistant liquid level indicator for sulfuric acid storage tanks. Utility Model Content

[0005] The purpose of this invention is to solve the problem of inconvenience in protecting liquid level indicators in the prior art, and to propose a corrosion-resistant liquid level indicator for sulfuric acid storage tanks.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A corrosion-resistant liquid level indicator for sulfuric acid storage tanks includes a fixed frame, an opening and closing plate rotatably connected to the inner wall of the fixed frame, a positioning frame fixedly connected to the upper surface of the opening and closing plate, a wiping pad fixedly connected to the inner wall of the positioning frame, a servo motor fixedly connected to the inner wall of the fixed frame, a worm gear fixedly connected to the output end of the servo motor, a worm wheel meshing with the outer surface of the worm gear, a rotating cylinder fixedly connected to the inner wall of the worm wheel, both ends of the rotating cylinder being rotatably connected to the inner wall of the fixed frame, and two steel wire ropes sleeved inside the rotating cylinder, the bottom end of each steel wire rope being fixedly connected to the upper surface of the positioning frame.

[0007] Preferably, the outer surface of the fixed frame is fixedly connected to the mounting frame, and the upper surface of the mounting frame is provided with four positioning holes.

[0008] Preferably, a sealing gasket is fixedly connected to the bottom surface of the mounting frame, and the inner wall of the sealing gasket is fixedly connected to the outer surface of the mounting frame.

[0009] Preferably, eight reinforcing blocks are fixedly connected to the upper surface of the mounting frame, and the side of each group of reinforcing blocks that is close to each other is fixedly connected to the inner wall of the fixed frame.

[0010] Preferably, a battery is fixedly connected to the upper surface of the fixed frame, and the battery is electrically connected to the servo motor through wires.

[0011] Preferably, an ultrasonic level gauge is fixedly connected to the inner wall of the fixed frame, and a probe is fixedly installed at the bottom of the ultrasonic level gauge.

[0012] Preferably, a support block is fixedly connected to the inner wall of the fixed frame, and the inner wall of the support block is rotatably connected to the bottom end of the worm gear.

[0013] In summary, the technical effects and advantages of this utility model are as follows: By incorporating a rotatable opening and closing plate, a positioning frame, and a wiping pad, effective protection is achieved for the level indicator probe. When not in use, the opening and closing plate can be closed to shield the probe, preventing it from being exposed to corrosive vapors for extended periods and thus extending the equipment's service life. Furthermore, the servo motor-driven worm gear, worm wheel, and rotating cylinder system allows the opening and closing plate to rotate flexibly, facilitating operation. Simultaneously, the steel wire rope ensures a stable connection between the positioning frame and the opening and closing plate, further enhancing the protective effect. In addition, the wiping pad allows for wiping the probe when the opening and closing plate is closed, removing any adhering corrosive vapors and reducing the risk of corrosion. This design not only improves the level indicator's protective performance but also reduces maintenance costs and enhances the equipment's reliability and stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the fixed frame of this utility model; Figure 2 This is a three-dimensional structural diagram of the ultrasonic level gauge of this utility model; Figure 3 This is a three-dimensional cross-sectional structural diagram of the fixed frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the servo motor of this utility model.

[0015] In the diagram: 1. Fixed frame; 2. Mounting frame; 3. Positioning hole; 4. Sealing gasket; 5. Battery; 6. Reinforcing block; 7. Ultrasonic level gauge; 8. Probe; 9. Opening plate; 10. Positioning frame; 11. Wiping pad; 12. Servo motor; 13. Worm gear; 14. Worm wheel; 15. Rotating cylinder; 16. Steel wire rope; 17. Support block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A corrosion-resistant liquid level indicator for sulfuric acid storage tanks includes a fixed frame 1. The fixed frame 1 is characterized by: an opening and closing plate 9 rotatably connected to its inner wall; a positioning frame 10 fixedly connected to the upper surface of the opening and closing plate 9; and an installation frame 2 fixedly connected to the outer surface of the fixed frame 1. The upper surface of the installation frame 2 has four positioning holes 3. The installation frame 2 significantly widens the contact area with the sulfuric acid storage tank, allowing the indicator to be installed more securely. The positioning holes 3 provide a precise reference for installation, facilitating quick and accurate installation using bolts and other fasteners, greatly improving installation efficiency.

[0018] A wiping pad 11 is fixedly connected to the inner wall of the positioning frame 10, a servo motor 12 is fixedly connected to the inner wall of the fixing frame 1, and a sealing gasket 4 is fixedly connected to the bottom surface of the mounting frame 2. The inner wall of the sealing gasket 4 is fixedly connected to the outer surface of the fixing frame 1. The addition of the sealing gasket 4 is like adding a waterproof wall to the installation contact surface. It can effectively fill the existing tiny gaps and prevent corrosive vapors and tiny droplets volatilized from the sulfuric acid storage tank from seeping in from the installation part.

[0019] The servo motor 12 has a worm gear 13 fixedly connected to its power output end. Eight reinforcing blocks 6 are fixedly connected to the upper surface of the mounting frame 2. The side of each group of reinforcing blocks 6 that is close to each other is fixedly connected to the inner wall of the fixed frame 1. The reinforcing blocks 6 enhance the structural strength of the mounting frame 2 and they combine the mounting frame 2 and the fixed frame 1 more tightly. This multi-reinforcement design enables the entire indicator to maintain structural stability and not easily loosen or deform when facing the vibration or external impact that may be generated by the sulfuric acid storage tank.

[0020] The outer surface of the worm gear 13 is meshed with a worm wheel 14, and the inner wall of the worm wheel 14 is fixedly connected to a rotating cylinder 15. The upper surface of the fixed frame 1 is fixedly connected to a storage battery 5. The storage battery 5 is electrically connected to the servo motor 12 through wires. The storage battery 5 provides an independent and reliable power supply solution for the servo motor 12. Even if the external power supply system fails or is interrupted, or if the installation environment is not suitable for connecting to a conventional power line, the indicator can still drive the servo motor 12 by relying on the storage battery 5.

[0021] Both ends of the rotating cylinder 15 are rotatably connected to the inner wall of the fixed frame 1. Two steel wire ropes 16 are sleeved inside the rotating cylinder 15. An ultrasonic level gauge 7 is fixedly connected to the inner wall of the fixed frame 1. A probe 8 is fixedly installed at the bottom of the ultrasonic level gauge 7. The integration of the ultrasonic level gauge 7 and the probe 8 is the core of this device to realize liquid level measurement. Fixing them inside the fixed frame 1 makes the liquid level measurement function a standard configuration of the device, meeting the basic requirements of sulfuric acid storage tank liquid level monitoring. On the other hand, this fixed installation method ensures the accuracy and stability of the probe 8 position, which is conducive to improving the accuracy of ultrasonic measurement.

[0022] The bottom end of each wire rope 16 is fixedly connected to the upper surface of the positioning frame 10. A support block 17 is fixedly connected to the inner wall of the fixed frame 1. The inner wall of the support block 17 is rotatably connected to the bottom end of the worm gear 13. The support block 17 provides support for the rotation of the worm gear 13, so that the worm gear 13 can rotate more stably, thereby ensuring the stability of the opening and closing plate 9.

[0023] The working principle of this utility model is as follows: In use, the operator first connects the ultrasonic level gauge 7 and the servo motor 12 to an external power supply and controller. The servo motor 12 can be connected to the battery 5 for power supply. Then, the installer uses the four positioning holes 3 on the mounting frame 2 to firmly fix the entire indicator to the sulfuric acid storage tank. The sealing gasket 4 at the bottom of the mounting frame 2 will tightly adhere to the surface of the storage tank, acting like a sealing ring to seal any gaps and prevent corrosive sulfuric acid vapor from sneaking in. Then, the servo motor 12 is turned on. The power output end of the servo motor 12 drives the worm gear 13 to rotate. The worm gear 13 meshes with the worm wheel 14, causing the worm wheel 14 to rotate, which in turn drives the rotating cylinder 15 to rotate. The two ends of the rotating cylinder 15 are rotatably connected to the inner wall of the fixed frame 1. During its rotation, the steel wire rope 16 sleeved inside is extended and retracted with the rotation of the rotating cylinder 15. The bottom end of the steel wire rope 16 is connected to the positioning frame 10. Due to the pulling of the steel wire rope 16, the positioning frame 10 moves accordingly, thereby driving the fixed connection thereto. The opening and closing plate 9 rotates around the rotating connection with the inner wall of the fixed frame 1. When the opening and closing plate 9 rotates open, the probe 8 is exposed, and the ultrasonic level gauge 7 starts to work normally to measure the liquid level in the sulfuric acid storage tank. The ultrasonic level gauge 7 measures the liquid level by emitting ultrasonic waves and receiving the signals reflected back from the surface of the measured medium. When the ultrasonic waves encounter the surface of the medium during propagation, they will be reflected. The ultrasonic level gauge 7 calculates the liquid level height based on the time difference between the emitted and received signals. When the measurement is completed, the servo motor 12 is started again to rotate in the opposite direction and repeat the above transmission process. The opening and closing plate 9 will gradually close. During the closing process of the opening and closing plate 9, the wiping pad 11 on the inner wall of the positioning frame 10 will come into contact with the probe 8. The wiping pad 11 will gently and effectively wipe away the tiny droplets or impurities that adhere to the surface of the probe 8 due to contact with corrosive vapor, thereby protecting the probe 8 and reducing the risk of corrosion. The wiping pad 11 can be made of fluororubber sponge or silicone rubber sponge corrosion-resistant material, but it still needs to be replaced regularly.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant liquid level indicator for sulfuric acid storage tanks, comprising a fixing frame (1), characterized in that: The inner wall of the fixed frame (1) is rotatably connected to an opening and closing plate (9), and the upper surface of the opening and closing plate (9) is fixedly connected to a positioning frame (10). The inner wall of the positioning frame (10) is fixedly connected to a wiping pad (11), and the inner wall of the fixed frame (1) is fixedly connected to a servo motor (12). The output end of the servo motor (12) is fixedly connected to a worm gear (13), and the outer surface of the worm gear (13) is meshed with a worm wheel (14). The inner wall of the worm wheel (14) is fixedly connected to a rotating cylinder (15). Both ends of the rotating cylinder (15) are rotatably connected to the inner wall of the fixed frame (1). Two steel wire ropes (16) are sleeved inside the rotating cylinder (15), and the bottom end of each steel wire rope (16) is fixedly connected to the upper surface of the positioning frame (10).

2. The corrosion-resistant liquid level indicator for sulfuric acid storage tanks according to claim 1, characterized in that: The outer surface of the fixed frame (1) is fixedly connected to the mounting frame (2), and the upper surface of the mounting frame (2) is provided with four positioning holes (3).

3. The corrosion-resistant liquid level indicator for sulfuric acid storage tanks according to claim 2, characterized in that: A sealing gasket (4) is fixedly connected to the bottom surface of the mounting frame (2), and the inner wall of the sealing gasket (4) is fixedly connected to the outer surface of the fixing frame (1).

4. The corrosion-resistant liquid level indicator for sulfuric acid storage tanks according to claim 2, characterized in that: The upper surface of the mounting frame (2) is fixedly connected with eight reinforcing blocks (6), and the side of each group of reinforcing blocks (6) that is close to each other is fixedly connected to the inner wall of the fixed frame (1).

5. The corrosion-resistant liquid level indicator for sulfuric acid storage tanks according to claim 1, characterized in that: A battery (5) is fixedly connected to the upper surface of the fixed frame (1), and the battery (5) is electrically connected to the servo motor (12) through wires.

6. The corrosion-resistant liquid level indicator for sulfuric acid storage tanks according to claim 1, characterized in that: An ultrasonic level gauge (7) is fixedly connected to the inner wall of the fixed frame (1), and a probe (8) is fixedly installed at the bottom of the ultrasonic level gauge (7).

7. The corrosion-resistant liquid level indicator for sulfuric acid storage tanks according to claim 1, characterized in that: The inner wall of the fixed frame (1) is fixedly connected to a support block (17), and the inner wall of the support block (17) is rotatably connected to the bottom end of the worm (13).

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