Liquid level precision control hydrophobic device

Abstract

The utility model relates to the field of drainage device, especially liquid level accurate regulation and control drainage device, including the cylinder, cylinder lateral wall lower part through -type fixed with first steam exhaust pipe, cylinder lower extreme middle part through -type fixed with first drainage pipe, is equipped with the water interception mechanism on the first drainage pipe, the below of water interception mechanism is provided with first detection mechanism. The utility model discloses through setting up water interception mechanism, can cut off the steam of inflow U -shaped pipe when first valve body closes, the inclined pipe is designed to make water body under the action of gravity fast discharge, and the drainage opportunity can be accurately controlled by opening second valve body, through setting up rotary column and driving spoon -shaped block rotation, cooperation sealing disc forms dynamic seal, reduces steam reverse leakage, the recess design of spoon -shaped block accelerates condensate separation, through -hole makes condensate fast drop to the bottom of cylinder, improves the drainage efficiency, solves the problem that the drainage device is difficult to cut off the water body in the drainage pipe and discharge fast.

Description

Technical Field

[0001] This utility model belongs to the field of hydrophobic devices, specifically relating to a hydrophobic device for precise liquid level control. Background Technology

[0002] Because steam in a steam pipe condenses into water when it encounters cold air, and because the temperature difference between steam and hot water is significant, and because water in the pipe will greatly consume the steam and prevent it from flowing smoothly, a drain pipe needs to be installed along a certain length of the steam pipe to ensure minimal steam consumption.

[0003] Traditional condensate drains require frequent valve opening and closing to ensure reliable drainage, leading to increased steam leakage and reduced system efficiency. Meanwhile, some low-leakage designs may cause water accumulation in equipment due to untimely drainage. Existing condensate drains are unable to quickly cut off and discharge water from the drain pipe, and it is also difficult to quickly detect the composition of the filtered water in the drain pipe and to accurately control the discharge level. Further improvements are needed. Utility Model Content

[0004] To overcome the problems of existing hydrophobic devices being unable to quickly cut off and discharge water from the hydrophobic pipe, and being unable to quickly detect the composition of the filtered water in the hydrophobic pipe, and being unable to accurately control the discharge of liquid level, a hydrophobic device with precise liquid level control is proposed.

[0005] The technical solution of this utility model is: a liquid level precise control and drainage device, including a cylinder; a first steam pipe is fixedly connected through the lower part of the side wall of the cylinder, a first drainage pipe is fixedly connected through the middle of the lower end of the cylinder, a water-cutting mechanism is provided on the first drainage pipe, and a first detection mechanism is provided below the water-cutting mechanism.

[0006] A steam inlet pipe is fixedly connected through the upper part of the side wall of the cylinder;

[0007] The cylinder body is provided with a U-shaped seat, and a second drain pipe is installed on the U-shaped seat. One end of the second drain pipe is connected to the first steam pipe, and the other end of the second drain pipe is connected to the second steam pipe. A controller is fixed to the side end of the U-shaped seat.

[0008] A rotating column is rotatably installed on the inner wall of the cylinder, and a rotating cylinder is rotatably installed on the side wall of the rotating column. Three spoon-shaped blocks are fixedly connected to the side wall of the rotating cylinder. The end of the spoon-shaped blocks is provided with a groove, and a through hole is provided through the inner wall of the groove. A motor is fixedly connected to one side of the cylinder. The output shaft of the motor passes through one side of the cylinder and is fixedly connected to one end of the rotating column. A liquid level sensor is fixedly connected to the lower part of the inner wall of the cylinder.

[0009] The inner wall of the second drainage pipe is fixed with the first filter plate and the second filter plate.

[0010] The lower end of the second drain pipe is equipped with two outlet pipes, and the outlet pipes are equipped with a fifth valve body and a sixth valve body. The second filter plate is located between the two outlet pipes, and the distance between the first filter plate and the second filter plate is greater than the distance from the outlet pipe to the second filter plate.

[0011] A second testing device is located below the water outlet pipe.

[0012] Furthermore, a third valve body is provided on the first steam pipe, and a fourth valve body is provided on the second steam pipe.

[0013] Furthermore, the water interception mechanism includes a first valve body, a U-shaped tube, an inclined tube, and a second valve body; the first valve body is installed on the first drain pipe, and a U-shaped tube is fixedly connected to the lower end of the first drain pipe. The U-shaped tube is U-shaped and its opening faces downward. The second valve body is installed on the side walls of both ends of the U-shaped tube. An inclined tube is installed at the lower ends of both ends of the U-shaped tube. The inclined tube is inclined. A sealing disc is fixedly connected to the inner wall of one side of the cylinder. The sealing disc and the spoon-shaped block are close to each other at their respective ends.

[0014] Furthermore, a protective shell is fixed to the side wall of the second drain pipe, and two holes are opened through the lower end of the protective shell, with the inner wall of the holes fitting against the upper part of the side wall of the drain pipe.

[0015] Furthermore, there is a gap between the lower end of the first filter plate and the bottom surface of the inner wall of the second drainage pipe.

[0016] Furthermore, the fifth and sixth valve bodies form a cylindrical space inside the water outlet pipe, and the height of the cylindrical space is greater than ten centimeters.

[0017] Furthermore, the first testing mechanism includes a collection tank, a second testing head, and a second water quality analyzer; the collection tank and the second water quality analyzer are located below the water interception mechanism, a bracket is fixed to the side wall of the collection tank, the second testing head is installed on the bracket, and the second water quality analyzer and the second testing head are electrically connected.

[0018] Furthermore, the second testing mechanism includes a water receiving bucket, a first testing head, and a first water quality testing instrument; a water receiving bucket and a first testing head are provided below the water outlet pipe, a support block is fixedly connected to the upper end of the water receiving bucket, and the first water quality testing instrument is installed on the support block, and the first water quality testing instrument and the first testing head are electrically connected.

[0019] Furthermore, a limiting hole is formed through the center of one side of the sealing disc, and the inner wall of the limiting hole fits against the side wall of the rotating column.

[0020] The beneficial effects of this utility model are:

[0021] 1. The water interception mechanism consists of a first valve body, a U-shaped tube, an inclined tube, and a second valve body. When the first valve body is closed, it can cut off the steam flowing into the U-shaped tube. The inclined design of the inclined tube allows the water to be discharged quickly under the action of gravity. Opening the second valve body can precisely control the drainage timing. By setting a rotating column to drive the spoon-shaped block to rotate, a dynamic seal is formed with the sealing plate to reduce the back leakage of steam. The groove design of the spoon-shaped block accelerates the separation of condensate. The through hole allows the condensate to drip quickly to the bottom of the cylinder, improving the drainage efficiency and solving the problem that the water trap is difficult to quickly cut off and discharge the water in the water trap.

[0022] 2. The first and second filter plates perform staged filtration of the water. The two outlet pipes collect the water from the first and second filtration stages through the fifth and sixth valve bodies, respectively. Combined with the water receiving tank, the first detection head, and the first water quality analyzer of the second detection mechanism, the water composition at different filtration stages can be quickly compared and analyzed. The first detection mechanism detects the initial condensate composition in real time through the collection box, the second detection head, and the second water quality analyzer, which facilitates data support for the analysis of the physicochemical properties of steam and solves the problem of difficulty in quickly detecting the composition of the filtered water in the drain pipe.

[0023] 3. The liquid level sensor monitors the water level inside the cylinder in real time, and the controller links with the water interception mechanism to achieve precise drainage and avoid water accumulation in the equipment. In addition, the motor drives the rotating column to rotate, and the spoon-shaped block accelerates the separation of steam and water through centrifugal force, which can reduce the amount of water carried by steam and solve the problem of difficulty in accurately controlling the discharge of liquid level. Attached Figure Description

[0024] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0025] Figure 2 The diagram shown is a three-dimensional structural diagram of the internal structure of the cylinder of this utility model;

[0026] Figure 3 The diagram shown is a three-dimensional structural schematic of the water outlet pipe of this utility model.

[0027] Figure 4 The diagram shown is a three-dimensional structural schematic of the second detection mechanism of this utility model;

[0028] Figure 5 The diagram shown is a three-dimensional structural schematic of the motor of this utility model;

[0029] Figure 6 The diagram shown is a three-dimensional structural schematic of the first testing mechanism of this utility model;

[0030] Figure 7 The diagram shown is a three-dimensional cross-sectional view of the second drainage pipe of this utility model.

[0031] The labels in the attached diagram are as follows: 1. Cylinder; 2. First steam pipe; 3. First drain pipe; 31. First valve body; 32. U-shaped pipe; 33. Inclined pipe; 34. Second valve body; 4. First detection mechanism; 5. Steam inlet pipe; 6. U-shaped seat; 7. Second drain pipe; 8. Second steam pipe; 9. Controller; 10. Third valve body; 11. Fourth valve body; 12. Sealing disc; 13. Rotating column; 14. Rotating cylinder; 15. Spoon-shaped block; 16. Groove; 17. Through hole; 18. Liquid level sensor; 19. Protective shell; 20. Water outlet pipe; 21. Fifth valve body; 22. Sixth valve body; 23. Water receiving bucket; 24. First detection head; 25. First water quality analyzer; 26. Motor; 27. Collection box; 28. Second detection head; 29. ​​Second water quality analyzer; 71. First filter plate; 72. Second filter plate. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Example 1: Please refer to Figures 1-7 The liquid level precise control and drainage device includes a cylinder 1; a first steam pipe 2 is fixedly connected through the lower part of the side wall of the cylinder 1, and a first drainage pipe 3 is fixedly connected through the middle of the lower end of the cylinder 1. A water-cutting mechanism is provided on the first drainage pipe 3, and a first detection mechanism 4 is provided below the water-cutting mechanism.

[0034] A steam inlet pipe 5 is fixedly connected through the upper part of the side wall of the cylinder 1;

[0035] The cylinder 1 is provided with a U-shaped seat 6 on the outside. A second drain pipe 7 is installed on the U-shaped seat 6. One end of the second drain pipe 7 is connected to the first steam pipe 2. The other end of the second drain pipe 7 is connected to the second steam pipe 8. A controller 9 is fixed to the side end of the U-shaped seat 6.

[0036] A rotating column 13 is rotatably mounted on the inner wall of the cylinder 1. A rotating cylinder 14 is rotatably mounted on the side wall of the rotating column 13. Three spoon-shaped blocks 15 are fixedly connected to the side wall of the rotating cylinder 14. A groove 16 is opened at the end of the spoon-shaped block 15. A through hole 17 is opened through the inner wall of the groove 16. A motor 26 is fixedly connected to one side of the cylinder 1. The output shaft of the motor 26 passes through one side of the cylinder 1 and is fixedly connected to one end of the rotating column 13. A liquid level sensor 18 is fixedly connected to the lower part of the inner wall of the cylinder 1.

[0037] The inner wall of the second drainage pipe 7 is fixedly connected to the first filter plate 71 and the second filter plate 72.

[0038] Two outlet pipes 20 are installed at the lower end of the second drain pipe 7. A fifth valve body 21 and a sixth valve body 22 are installed on the outlet pipes 20. The second filter plate 72 is located between the two outlet pipes 20. The distance between the first filter plate 71 and the second filter plate 72 is greater than the distance between the outlet pipe 20 and the second filter plate 72.

[0039] A second inspection mechanism is located below the water outlet pipe 20.

[0040] In use, steam is connected to the steam inlet pipe 5, allowing steam to enter the interior of the cylinder 1. The motor 26 is turned on, driving the rotating column 13 to rotate. The rotating column 13 then drives the spoon-shaped block 15 to rotate. Because the spoon-shaped block 15 is spoon-shaped, some of the steam condenses into water and falls downwards through the through-hole 17. The steam is then transported to the first steam outlet pipe 2 and flows into the second drain pipe 7, before being discharged outwards through the second steam outlet pipe 8. During this process, some of the steam inside the cylinder 1 condenses into water and flows into the water-catching mechanism through the first drain pipe 3. Opening the water-catching mechanism temporarily stores the water. Then, opening the water-catching mechanism injects the water into the first detection mechanism 4. Opening the first detection mechanism 4 allows for the detection of the water. In addition, after the water enters the interior of the second drain pipe 7, it can be filtered by the first filter plate 71 and the second filter plate 72. The two outlet pipes 20 can collect the water that has passed through the first filter plate 71 and the second filter plate 72 respectively. Then, the water that has passed through the first filter plate 71 and the second filter plate 72 can be tested to obtain the untreated water, the water that has undergone one treatment, and the water that has undergone two treatments. This makes it convenient to test the components in these three types of water and determine the physicochemical properties of the steam. Furthermore, since the cylinder 1 is equipped with a liquid level sensor 18, turning on the liquid level sensor 18 can accurately detect the liquid level in the cylinder 1. When the liquid level sensor 18 detects the liquid level, the water interception mechanism can be opened in time to drain the water, which is convenient to use.

[0041] Please see Figure 1 In this embodiment, a third valve body 10 is provided on the first steam pipe 2, and a fourth valve body 11 is provided on the second steam pipe 8. The third valve body 10 and the fourth valve body 11 can independently adjust the steam discharge, and reduce unnecessary steam leakage by precisely controlling the valve opening.

[0042] Please see Figure 1 and Figure 3 In this embodiment, a protective shell 19 is fixedly connected to the side wall of the second drain pipe 7. Two holes are opened through the lower end of the protective shell 19. The inner wall of the holes is attached to the upper part of the side wall of the water outlet pipe 20. The protective shell 19 can improve the heat preservation effect of the second drain pipe 7.

[0043] Please see Figure 1 and Figure 7 In this embodiment, there is a gap between the lower end of the first filter plate 71 and the bottom surface of the inner wall of the second condensate pipe 7. The design of the gap allows water formed by the cooling of steam to flow out through one of the outlet pipes 20.

[0044] Please see Figure 1 and Figure 3In this embodiment, the fifth valve body 21 and the sixth valve body 22 form a cylindrical space inside the water outlet pipe 20, and the height of the cylindrical space is greater than ten centimeters. The cylindrical space can form a water seal, which can temporarily store water and prevent steam from leaking back through the water outlet pipe 20.

[0045] Please see Figure 1 and Figure 6 In this embodiment, the first detection mechanism 4 includes a collection box 27, a second detection head 28, and a second water quality analyzer 29. The collection box 27 and the second water quality analyzer 29 are arranged below the water interception mechanism. A bracket is fixed to the side wall of the collection box 27, and the second detection head 28 is installed on the bracket. The second water quality analyzer 29 and the second detection head 28 are electrically connected. The collection box 27 collects the initial condensate discharged by the water interception mechanism in real time. The second detection head 28 is directly inserted into the water body for in-situ detection. The second water quality analyzer 29 analyzes the data simultaneously to realize real-time monitoring of the condensate composition.

[0046] Please see Figure 1 and Figure 4 In this embodiment, the second detection mechanism includes a water receiving tank 23, a first detection head 24, and a first water quality detector 25. The water receiving tank 23 and the first detection head 24 are located below the water outlet pipe 20. A support block is fixed to the upper end of the water receiving tank 23, and the first water quality detector 25 is installed on the support block. The first water quality detector 25 and the first detection head 24 are electrically connected. The water receiving tank 23 receives the filtered water. The first detection head 24 is immersed in the water receiving tank 23 to detect the water quality in real time. The first water quality detector 25 displays the data synchronously. Combined with the multi-stage filter plate, the graded detection and comparative analysis of steam condensate can be realized.

[0047] Please see Figures 1-4 In this embodiment, a limiting hole is formed through the center of one side of the sealing disc 12. The inner wall of the limiting hole fits against the side wall of the rotating column 13. The limiting hole and the rotating column 13 cooperate to form a mechanical positioning, which improves the stability of the rotating column 13 when it rotates.

[0048] Example 2: Please refer to Figure 1 and Figure 2Based on Embodiment 1, this application provides a technical solution: the water interception mechanism includes a first valve body 31, a U-shaped tube 32, an inclined tube 33, and a second valve body 34; the first valve body 31 is installed on the first drain pipe 3, and the lower end of the first drain pipe 3 is fixedly connected to the U-shaped tube 32, which is U-shaped and has its opening facing downwards. The side walls of both ends of the U-shaped tube 32 are each equipped with a second valve body 34, and the lower ends of both ends of the U-shaped tube 32 are jointly equipped with an inclined tube 33, which is inclined. A sealing disc 12 is fixedly connected to the inner wall of one side of the cylinder 1, and the ends of the sealing disc 12 and the spoon-shaped block 15 that are close to each other are in contact with each other. Closing the first valve body 31 can block the steam out of the cylinder 1. Opening the second valve body 34 can allow the water in the U-shaped tube 32 to enter the interior of the inclined tube 33. The inclined design of the inclined tube 33 accelerates the discharge of water. The first valve body 31 controls the opening and closing of the main channel, and the second valve body 34 precisely adjusts the drainage volume, which can avoid steam leakage caused by frequent opening and closing.

[0049] Working principle: When working, the external steam pipe is connected to the steam inlet pipe 5, and the steam enters the inside of the cylinder 1 through the steam inlet pipe 5. At this time, the motor 26 is started, and its output shaft drives the rotating column 13 to rotate. The rotating column 13 then drives the rotating cylinder 14 and the spoon-shaped block 15 to rotate.

[0050] The spoon-shaped block 15 is spoon-shaped. When the steam is rotated, it is cooled and some of it will condense into water. This water will drip down through the through hole 17 in the groove 16 at the end of the spoon-shaped block 15. The steam after the condensate is separated will enter the first steam pipe 2, then flow into the second drain pipe 7, and finally be discharged through the second steam pipe 8.

[0051] The third valve body 10 and the fourth valve body 11 are respectively installed on the first steam pipe 2 and the second steam pipe 8, and can independently adjust the steam discharge to reduce unnecessary steam leakage.

[0052] Water formed by steam condensation inside the cylinder 1 will enter the water interception mechanism through the first drain pipe 3. The water interception mechanism consists of a first valve body 31, a U-shaped pipe 32, an inclined pipe 33, and a second valve body 34. By closing the first valve body 31, the steam outflow inside the cylinder 1 can be blocked. By opening the second valve body 34, the water in the U-shaped pipe 32 will enter the inclined pipe 33. The inclined pipe 33 is set at an angle, which can accelerate the discharge of water into the first detection mechanism 4 for detection.

[0053] After the condensate enters the second drain pipe 7, it will be filtered by the first filter plate 71 and the second filter plate 72. There is a gap between the lower end of the first filter plate 71 and the bottom surface of the inner wall of the second drain pipe 7, which allows larger particles or impurities that are not filtered to temporarily settle, thus avoiding clogging the filter plate pores. The two outlet pipes 20 are located on both sides below the second filter plate 72. The fifth valve body 21 and the sixth valve body 22 are installed on the outlet pipes 20. They form a cylindrical space with a height of more than 10 cm inside the outlet pipes 20, and use hydrostatic pressure to form a water seal to block the reverse leakage of steam, while also achieving temporary water storage.

[0054] The water discharged from the outlet pipe 20 will enter the interior of the water receiving tank 23. The water receiving tank 23 receives the filtered water. The first detection head 24 is immersed in the water receiving tank 23 to detect the water quality in real time. The first water quality detector 25 displays the data simultaneously. Combined with the multi-stage filter plate, the graded detection and comparative analysis of steam condensate can be realized.

[0055] The water discharged by the intercepting mechanism enters the first detection mechanism 4, the collection box 27 collects the initial condensate in real time, the second detection head 28 is directly inserted into the water for in-situ detection, and the second water quality analyzer 29 analyzes the data simultaneously to realize real-time monitoring of the condensate composition.

[0056] In addition, a liquid level sensor 18 is fixedly connected to the lower part of the inner wall of the cylinder 1, which can monitor the liquid level in the cylinder in real time. When the liquid level reaches the threshold, the liquid level sensor 18 transmits the signal to the controller 9, and the controller 9 links the water interception mechanism to start drainage to prevent water accumulation in the equipment.

[0057] In addition, a U-shaped seat 6 is provided on the outside of the cylinder 1, and the second drain pipe 7 is installed on the U-shaped seat 6. The lower end of the protective shell 19 fixed to its side wall has two holes. The inner wall of the holes and the upper part of the side wall of the water outlet pipe 20 are attached to form a physical barrier. The protective shell 19 can improve the protection of the second drain pipe 7.

Claims

1. A liquid level precision control hydrophobic device, comprising a cylinder (1); characterized in that: A first steam pipe (2) is fixedly connected through the lower part of the side wall of the cylinder (1), and a first drain pipe (3) is fixedly connected through the middle of the lower end of the cylinder (1). A water-cutting mechanism is provided on the first drain pipe (3), and a first detection mechanism (4) is provided below the water-cutting mechanism. A steam inlet pipe (5) is fixedly connected to the upper part of the side wall of the cylinder (1); The cylinder (1) is provided with a U-shaped seat (6) on the outside. A second drain pipe (7) is installed on the U-shaped seat (6). One end of the second drain pipe (7) is connected to the first steam pipe (2). The other end of the second drain pipe (7) is equipped with a second steam pipe (8). A controller (9) is fixed to the side end of the U-shaped seat (6). A rotating column (13) is rotatably installed on the inner wall of the cylinder (1), and a rotating cylinder (14) is rotatably installed on the side wall of the rotating column (13). Three spoon-shaped blocks (15) are fixedly connected to the side wall of the rotating cylinder (14). A groove (16) is opened at the end of the spoon-shaped block (15), and a through hole (17) is opened through the inner wall of the groove (16). A motor (26) is fixedly connected to one side of the cylinder (1). The output shaft of the motor (26) passes through one side of the cylinder (1) and is fixedly connected to one end of the rotating column (13). A liquid level sensor (18) is fixedly connected to the lower part of the inner wall of the cylinder (1). The inner wall of the second drainage pipe (7) is fixed with the first filter plate (71) and the second filter plate (72); The lower end of the second drain pipe (7) is equipped with two outlet pipes (20). The outlet pipes (20) are equipped with a fifth valve body (21) and a sixth valve body (22). The second filter plate (72) is located between the two outlet pipes (20). The distance between the first filter plate (71) and the second filter plate (72) is greater than the distance between the outlet pipe (20) and the second filter plate (72). A second testing mechanism is located below the water outlet pipe (20).

2. The liquid level precision regulating hydrophobic device according to claim 1, wherein: The first steam pipe (2) is equipped with a third valve body (10), and the second steam pipe (8) is equipped with a fourth valve body (11).

3. The liquid level precision regulating hydrophobic device according to claim 1, wherein: The water interception mechanism includes a first valve body (31), a U-shaped pipe (32), an inclined pipe (33), and a second valve body (34). The first valve body (31) is installed on the first drain pipe (3). The lower end of the first drain pipe (3) is fixedly connected to the U-shaped pipe (32). The U-shaped pipe (32) is U-shaped and its opening faces downward. The side walls of both ends of the U-shaped pipe (32) are equipped with the second valve body (34). The lower ends of both ends of the U-shaped pipe (32) are jointly equipped with the inclined pipe (33). The inclined pipe (33) is inclined. A sealing disc (12) is fixedly connected to the inner wall of one side of the cylinder (1). The sealing disc (12) and the spoon-shaped block (15) are close to each other at one end.

4. The liquid level precision control hydrophobic device of claim 1, wherein: The second drain pipe (7) has a protective shell (19) fixed to its side wall. The lower end of the protective shell (19) has two holes, and the inner wall of the holes is attached to the upper part of the side wall of the drain pipe (20).

5. The liquid level precision regulating hydrophobic device according to claim 1, wherein: There is a gap between the lower end of the first filter plate (71) and the bottom surface of the inner wall of the second drainage pipe (7).

6. The hydrophobic device for precise liquid level control according to claim 1, characterized in that: The fifth valve body (21) and the sixth valve body (22) form a cylindrical space inside the water outlet pipe (20), and the height of the cylindrical space is greater than ten centimeters.

7. The hydrophobic device for precise liquid level control according to claim 1, characterized in that: The first testing mechanism (4) includes a collection box (27), a second testing head (28), and a second water quality tester (29); the collection box (27) and the second water quality tester (29) are arranged below the water interception mechanism. A bracket is fixed to the side wall of the collection box (27), and the second testing head (28) is installed on the bracket. The second water quality tester (29) and the second testing head (28) are electrically connected.

8. The liquid level precision regulating hydrophobic device according to claim 1, wherein: The second testing mechanism includes a water receiving bucket (23), a first testing head (24), and a first water quality testing instrument (25); a water receiving bucket (23) and a first testing head (24) are provided below the water outlet pipe (20), a support block is fixedly connected to the upper end of the water receiving bucket (23), and the first water quality testing instrument (25) is installed on the support block. The first water quality testing instrument (25) and the first testing head (24) are electrically connected.

9. The liquid level precision regulating hydrophobic device according to claim 3, wherein: A limiting hole is provided through the center of one side of the sealing disc (12), and the inner wall of the limiting hole fits against the side wall of the rotating column (13).

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