Liquid level controller
By introducing a three-needle sensor, semiconductor components, and a CMOS integrated circuit module into the level controller, and by setting a descaling structure on the electrode-type hydraulic needle, the applicability of the level controller in demineralized water systems and the problem of electrode contamination are solved, achieving automatic electrode cleaning and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 程春霞
- Filing Date
- 2025-04-01
- Publication Date
- 2026-05-15
AI Technical Summary
Existing level controllers are not suitable for demineralized water systems, and electrode-type level controllers are easily coated with impurities in the water during use, rendering them unusable and difficult to clean.
It employs a three-needle sensor, semiconductor components, and a CMOS integrated circuit module, combined with an electrode-type hydraulic needle. The electrode is equipped with a descaling structure, including multiple fixed sleeves and cleaning brushes, which achieves automatic cleaning of the electrode through a mechanical structure.
This technology enables the effective application of level controllers in demineralized water systems. Automatic electrode cleaning ensures electrode accuracy and lifespan, while reducing maintenance difficulty and costs.
Smart Images
Figure CN224248065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level controller technology, and more particularly to a liquid level controller. Background Technology
[0002] An existing liquid level controller can be used for tap water supply and drainage, but not for demineralized water supply and drainage systems. Furthermore, the electrodes of an electrode-type liquid level controller tend to absorb impurities from the water during operation. Without regular cleaning, the electrodes become coated with these impurities and cannot be used. However, cleaning is quite troublesome. Therefore, we need a liquid level controller to solve this problem. Utility Model Content
[0003] The liquid level controller proposed in this utility model solves the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A liquid level controller includes a liquid level controller, wherein a three-needle sensor, a semiconductor device, a CMOS integrated circuit module and a thyristor are sequentially installed inside the liquid level controller, and a connector is embedded in the outer shell of the liquid level controller, the connector being electrically connected to an electrode-type hydraulic needle.
[0006] Preferably, the electrode of the electrode-type hydraulic needle is provided with a descaling structure. The electrode-type hydraulic needle includes a high-end electrode, a common-end electrode, and a low-end electrode. The descaling structure includes a first fixed sleeve with a hollow structure disposed on the outer ring of the high-end electrode. The top of the first fixed sleeve is slidably connected to the outer shell of the electrode-type hydraulic needle. Two sets of first cleaning brushes symmetrically distributed along their central axis are fixedly connected to the inner ring of the first fixed sleeve. A first one-way valve is installed at the bottom of the first fixed sleeve, and first water outlet holes are uniformly opened on the inner ring of the first fixed sleeve.
[0007] Preferably, the descaling structure further includes a second fixed sleeve with a hollow structure disposed on the outer ring of the common end electrode. The top of the second fixed sleeve is slidably connected to the outer shell of the electrode-type hydraulic needle. Two sets of second cleaning brushes symmetrically distributed along their central axis are fixedly connected to the inner ring of the second fixed sleeve. A second one-way valve is installed at the bottom of the second fixed sleeve. A second gear is fixedly connected to the outer ring of the second fixed sleeve. The inner ring of the second fixed sleeve is uniformly provided with second water outlet holes.
[0008] Preferably, the descaling structure further includes a hollow third fixing sleeve disposed on the outer ring of the lower electrode. The top of the third fixing sleeve is slidably connected to the outer shell of the electrode-type hydraulic needle. Two sets of third cleaning brushes symmetrically distributed along their central axis are fixedly connected to the inner ring of the third fixing sleeve. A third one-way valve is installed at the bottom of the third fixing sleeve. A third gear is fixedly connected to the outer ring of the third fixing sleeve, and the inner ring of the third fixing sleeve has uniformly distributed third water outlet holes.
[0009] Preferably, the first fixed sleeve and the second fixed sleeve are connected by a second pipe, the second pipe and the third fixed sleeve are connected by a first pipe, and a water pipe is fixedly connected to the outer ring of the third fixed sleeve, and a water pump is fixedly connected to the other end of the water pipe.
[0010] Preferably, a worm gear is provided above the first gear and is fixedly connected to the outer ring of the first fixed sleeve. A worm is meshed on one side of the worm gear, and a motor is fixed to the top of the worm. The motor is fixed to the outer wall of the electrode-type hydraulic needle.
[0011] This invention uses a three-needle sensor with no mechanical movement, avoiding the jamming phenomenon of float-type sensors. Moreover, it is easier to install than magnetic level gauges, capacitive sensors, and ultrasonic sensors used on the market, and requires almost no maintenance.
[0012] This invention uses semiconductor components and a CMOS integrated circuit module to acquire and process signals for demineralized water, making it more widely applicable than liquid level relays on the market. In addition to being used in tap water supply and drainage systems, it can also be applied to demineralized water supply and recovery systems in the chemical industry.
[0013] Because the output of this utility model is a thyristor output, it has a longer service life and a higher cost performance than liquid level relays with coil-type relay outputs on the market. At the same time, this product has an output fault signal, which can be used to determine whether a sealed storage device is operating normally.
[0014] This invention cleans the electrodes of the electrode-type hydraulic needle through a descaling structure, thereby ensuring the accuracy of the electrode-type hydraulic needle. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a liquid level controller proposed in this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of the first and second fixed sleeves proposed in this utility model.
[0017] Figure 3 This is a schematic diagram of the working structure of a liquid level controller proposed in this utility model.
[0018] The diagram is labeled as follows: 1. Liquid level controller; 2. Three-needle sensor; 3. CMOS integrated circuit module; 4. Semiconductor component; 5. Thyristor; 7. Electrode-type hydraulic needle; 8. Descaling structure; 801. First gear; 802. First fixed sleeve; 803. Cleaning brush; 804. High-end electrode; 805. Common electrode; 806. Second gear; 807. Second fixed sleeve; 808. Third cleaning brush; 809. Low-end electrode; 810. Third gear; 811. Third fixed sleeve; 812. First pipe; 813. Second cleaning brush; 814. Second pipe; 9. Water pipe; 10. Water pump; 11. Motor; 12. Worm gear; 13. Worm wheel. Detailed Implementation
[0019] 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.
[0020] Reference Figure 1-3 A liquid level controller includes a liquid level controller 1. Inside the liquid level controller 1, a three-needle sensor 2, a semiconductor component 4, a CMOS integrated circuit module 3 and a thyristor 5 are installed in sequence. The outer shell of the liquid level controller 1 is fitted with a connector, which is electrically connected to an electrode-type hydraulic needle 7.
[0021] In this embodiment: the electrode of the electrode-type hydraulic needle 7 is provided with a descaling structure 8. The electrode-type hydraulic needle 7 includes a high-end electrode 804, a common-end electrode 805, and a low-end electrode 809. The descaling structure 8 includes a hollow first fixing sleeve 802 disposed on the outer ring of the high-end electrode 804. The top of the first fixing sleeve 802 is slidably connected to the outer shell of the electrode-type hydraulic needle 7. Two sets of first cleaning brushes 803 symmetrically distributed along their central axis are fixed to the inner ring of the first fixing sleeve 802. A first one-way valve is installed at the bottom of the first fixing sleeve 802, and the inner ring of the first fixing sleeve 802 is uniformly provided with first water outlet holes. The first fixing sleeve 802 drives the first cleaning brushes 803 connected to it to rotate, so that the first cleaning brushes 803 can clean the scale on the surface of the high-end electrode 804. After the scale is cleaned off, it enters the interior of the first fixing sleeve 802 through the first water outlet holes.
[0022] In this embodiment, the descaling structure 8 further includes a hollow second fixing sleeve 807 disposed on the outer ring of the common end electrode 805. The top of the second fixing sleeve 807 is slidably connected to the outer shell of the electrode-type hydraulic needle 7. Two sets of second cleaning brushes 813 symmetrically distributed along their central axis are fixedly connected to the inner ring of the second fixing sleeve 807. A second one-way valve is installed at the bottom of the second fixing sleeve 807. A second gear 806 is fixedly connected to the outer ring of the second fixing sleeve 807, and a second water outlet is evenly opened on the inner ring of the second fixing sleeve 807. The first gear 801 drives the second gear 806 connected to it to rotate, the second gear 806 drives the second fixing sleeve 807 connected to it to rotate, and the second fixing sleeve 807 drives the 808 connected to it to rotate, thereby cleaning the scale on the common end electrode 805. After cleaning, the scale enters the interior of the second fixing sleeve 805 through the second water outlet.
[0023] In this embodiment, the descaling structure 8 further includes a hollow third fixing sleeve 811 disposed on the outer ring of the low-end electrode 809. The top of the third fixing sleeve 811 is slidably connected to the outer shell of the electrode-type hydraulic needle 7. Two sets of third cleaning brushes 808 symmetrically distributed along their central axis are fixedly connected to the inner ring of the third fixing sleeve 811. A third one-way valve is installed at the bottom of the third fixing sleeve 811. A third gear 810 is fixedly connected to the outer ring of the third fixing sleeve 811, and the inner ring of the third fixing sleeve 811 has uniformly distributed third water outlet holes. When the second gear 806 rotates, it drives the third gear 801 connected to it to rotate. The third gear 810 drives the third fixing sleeve 811 connected to it to rotate. The third fixing sleeve 811 drives the third cleaning brushes 808 connected to it to rotate, thereby cleaning the scale on the low-end electrode 809. After cleaning, the scale enters the interior of the third fixing sleeve 809 through the third water outlet holes.
[0024] In this embodiment: the first fixed sleeve 802 and the second fixed sleeve 807 are connected by the second pipe 814, and the second pipe 814 and the third fixed sleeve 811 are connected by the first pipe 812. A water pipe 9 is fixedly connected to the outer ring of the third fixed sleeve 811, and a water pump 10 is fixedly connected to the other end of the water pipe 9. The water pump 10 extracts the sewage containing scale inside the first fixed sleeve 802, the second fixed sleeve 807 and the third fixed sleeve 811 through the water pipe 11, the first pipe 814 and the second pipe 812, thereby completing the cleaning of the electrode of the electrode-type hydraulic needle 7 and ensuring the accuracy of the electrode-type hydraulic needle 7.
[0025] In this embodiment: a worm gear 13 is provided above the first gear 801 and is fixedly connected to the outer ring of the first fixed sleeve 802. A worm 12 is meshed on one side of the worm gear 13. A motor 11 is fixed to the top of the worm 12. The motor 11 is fixed to the outer wall of the electrode-type hydraulic needle 7. First, the motor 11 is started. The motor 11 drives the worm 12 connected to it. The worm 12 drives the worm gear 13 connected to it to rotate. The worm gear 13 drives the first fixed sleeve 802 connected to it to rotate.
[0026] Working principle: When used in a drainage system, when the water level in the container reaches the high end, the level controller 1 outputs a signal, driving the solenoid valve actuator connected to the rear end of the container to activate, initiating drainage. As the water level gradually decreases, when it falls below the low end, the level controller 1 disconnects its drive signal, the solenoid valve actuator at the rear end of the container disconnects, and drainage ends. Then, condensate from the gas-using equipment at the front end of the container continues to flow in, and the drainage process repeats when the water level reaches the high end. If the high-end signal output persists for two seconds or longer, a fault is detected, requiring manual inspection.
[0027] When used in a water supply system, when downstream water users drain the water level below the low end, the level controller sends a drive signal to activate the solenoid valve or water pump connected to the front end of the container, filling the container with water. When the water level reaches the high end, the level controller's drive signal is deactivated, the front-end solenoid valve or water pump closes, and the filling process ends. The filling process repeats when downstream water usage drops to the low end. A low-end signal output lasting two seconds or longer indicates a fault and requires manual inspection.
[0028] When descaling the electrode of the electrode-type hydraulic needle 7, the motor 11 is first started. The motor 11 drives the worm gear 12 connected to it, the worm gear 12 drives the worm wheel 13 connected to it to rotate, the worm wheel 13 drives the first fixed sleeve 802 connected to it to rotate, and the first fixed sleeve 802 drives the first cleaning brush 803 connected to it to rotate, so that the first cleaning brush 803 can clean the scale on the surface of the high-end electrode 804. After the scale is cleaned off, it enters the interior of the first fixed sleeve 802 through the first water outlet. At the same time, the rotation of the first fixed sleeve 802 drives the first gear 801 to rotate, the first gear 801 drives the second gear 806 connected to it to rotate, the second gear 806 drives the second fixed sleeve 807 connected to it to rotate, and the second fixed sleeve 807 drives the 808 connected to it to rotate, thereby cleaning the common end electrode 8. The scale on the electrode 805 is cleaned, and the cleaned scale enters the second fixed sleeve 805 through the second outlet. At the same time, the second gear 806 rotates, driving the third gear 801 connected to it to rotate. The third gear 810 drives the third fixed sleeve 811 connected to it to rotate. The third fixed sleeve 811 drives the third cleaning brush 808 connected to it to rotate, thereby cleaning the scale on the low electrode 809. The cleaned scale enters the third fixed sleeve 809 through the third outlet. Then, the water pump 10 is started. The water pump 10 extracts the wastewater containing scale from the first fixed sleeve 802, the second fixed sleeve 807 and the third fixed sleeve 811 through the water pipe 11, the first pipe 814 and the second pipe 812, thereby completing the cleaning of the electrode of the electrode-type hydraulic needle 7 and ensuring the accuracy of the electrode-type hydraulic needle 7.
[0029] 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.
[0030] 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 indicated technical features. 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.
[0031] 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 liquid level controller, comprising a first gear (801), characterized in that, The liquid level controller (1) is equipped with a three-needle sensor (2), a semiconductor device (4), a CMOS integrated circuit module (3) and a thyristor (5) in sequence inside. The liquid level controller (1) is also equipped with a connector embedded in its outer shell, and the connector is electrically connected to an electrode-type hydraulic needle (7). The electrode of the electrode-type hydraulic needle (7) is provided with a descaling structure (8). The electrode-type hydraulic needle (7) includes a high-end electrode (804), a common-end electrode (805) and a low-end electrode (809). The descaling structure (8) includes a first fixed sleeve (802) with a hollow structure disposed on the outer ring of the high-end electrode (804). The top of the first fixed sleeve (802) is slidably connected to the outer shell of the electrode-type hydraulic needle (7). Two sets of first cleaning brushes (803) are fixedly connected to the inner ring of the first fixed sleeve (802) and are symmetrically distributed along its central axis. A first one-way valve is installed at the bottom of the first fixed sleeve (802), and the inner ring of the first fixed sleeve (802) is uniformly provided with first water outlet holes. A worm gear (13) is provided above the first gear (801) and is fixed to the outer ring of the first fixed sleeve (802). A worm (12) is meshed on one side of the worm gear (13). A motor (11) is fixed on the top of the worm (12). The motor (11) is fixed to the outer wall of the electrode-type hydraulic needle (7).
2. A liquid level controller according to claim 1, characterized in that, The descaling structure (8) also includes a hollow second fixed sleeve (807) disposed on the outer ring of the common end electrode (805). The top of the second fixed sleeve (807) is slidably connected to the outer shell of the electrode-type hydraulic needle (7). Two sets of second cleaning brushes (813) are fixedly connected to the inner ring of the second fixed sleeve (807) and are symmetrically distributed along its central axis. A second one-way valve is installed at the bottom of the second fixed sleeve (807). A second gear (806) is fixedly connected to the outer ring of the second fixed sleeve (807). The inner ring of the second fixed sleeve (807) is uniformly provided with second water outlet holes.
3. A liquid level controller according to claim 1, characterized in that, The descaling structure (8) also includes a hollow third fixed sleeve (811) disposed on the outer ring of the low-end electrode (809). The top of the third fixed sleeve (811) is slidably connected to the outer shell of the electrode-type hydraulic needle (7). Two sets of third cleaning brushes (808) symmetrically distributed along their central axis are fixedly connected to the inner ring of the third fixed sleeve (811). A third one-way valve is installed at the bottom of the third fixed sleeve (811). A third gear (810) is fixedly connected to the outer ring of the third fixed sleeve (811). The inner ring of the third fixed sleeve (811) is provided with uniformly distributed third water outlet holes.
4. A liquid level controller according to claim 1, characterized in that, The first fixed sleeve (802) and the second fixed sleeve (807) are connected by a second pipe (814), and the second pipe (814) and the third fixed sleeve (811) are connected by a first pipe (812). A water pipe (9) is fixedly connected to the outer ring of the third fixed sleeve (811), and a water pump (10) is fixedly connected to the other end of the water pipe (9).