Non-contact electronic water gauge
By employing a non-contact design and the use of a conductive liquid medium, the problems of easy corrosion and dirt accumulation in humid environments have been solved, enabling the electronic water level gauge to achieve long lifespan and high accuracy measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 张仲良
- Filing Date
- 2026-02-25
- Publication Date
- 2026-05-15
AI Technical Summary
Existing electronic water level gauges are prone to accumulating dirt on their sensor surfaces after prolonged contact with the water body being measured, leading to aging and corrosion, which affects measurement accuracy, especially in humid and corrosive environments.
A non-contact electronic water level gauge is designed. It uses a conductive liquid as a medium and separates the detection area from the electronic water level gauge through a gas-liquid separator. The water level is indirectly measured by monitoring the changes in the conductive liquid level, avoiding direct contact. The purity and impurity-free characteristics of the conductive liquid protect the electronic water level gauge from corrosion and dirt.
It effectively protects the electronic water level gauge, prevents corrosion and dirt accumulation, extends its service life, and improves the accuracy and stability of measurements.
Smart Images
Figure CN122042002A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of electronic water level gauge technology, specifically relating to a non-contact electronic water level gauge. Background Technology
[0002] An electronic water level gauge is an electronic instrument used to detect water levels and is an important tool in the field of modern hydrological monitoring. Currently, most electronic water level gauges on the market use a combination of sensors and data processing units to measure water levels. Their structure mainly includes a sensor section, a signal transmission section, and a data processing and display section. The sensor section is responsible for detecting changes in water level and converting these changes into electrical signals. The signal transmission section is responsible for transmitting the signals captured by the sensor to the data processing unit. The data processing unit processes the received signals, calculates the actual water level, and displays it.
[0003] However, existing electronic water level gauges still have some limitations. For example, after prolonged direct contact with the water body being measured, dirt may accumulate on the sensor surface, leading to sensor aging, corrosion, or contamination, thus reducing measurement accuracy. In particular, traditional electronic water level gauges generally use measuring elements made of ordinary metal materials, which are susceptible to corrosion in humid and corrosive environments. At the same time, the accumulation of dirt on the sensor surface affects sensor performance and may even lead to failure.
[0004] Therefore, it is necessary to design a non-direct contact electronic water gauge that is isolated from the water body being measured during measurement and has a long service life. Summary of the Invention
[0005] This invention provides a non-contact electronic water level gauge to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A non-contact electronic water level gauge includes: a first container; an inlet is provided on one side of the first container; a second container; the second container is disposed inside the first container; a third container; the third container is disposed inside the first container; the second container and the third container are connected; the first container, the second container and the third container are all elongated structures; conductive liquid is injected into the second container and the third container; an electronic water level gauge is disposed in the third container; and a gas-liquid separator is disposed on the second container and the third container.
[0007] As a further improvement to the technical solution, the second container, the third container and the first container are in the same length direction; the electronic water gauge is in the same length direction as the third container.
[0008] As a further improvement to the technical solution, the bottom of the second container is close to the end of the first container where the water inlet is located, and its top is spaced apart from the end of the first container away from the water inlet.
[0009] As a further improvement to the technical solution, the gas-liquid separator on the second container is located at the end of the second container away from the water inlet.
[0010] As a further improvement to the technical solution, the bottom end of the third container is close to the end of the first container where the water inlet is located, and the other end of the third container extends upward through the first container; the gas-liquid separator on the third container is located at the end of the third container that passes through the first container.
[0011] As a further improvement to the technical solution, the volume of the second container is larger than the volume of the third container.
[0012] As a further improvement to the technical solution, the electronic water level gauge is vertically distributed; the sensing units on the electronic water level gauge are distributed in parallel at intervals along the length of the electronic water level gauge; the interval between the sensing units of the electronic water level gauge gradually decreases from the end closest to the water inlet.
[0013] As a further improvement to the technical solution, the first container also includes a base; the base is provided at one end of the first container where the water inlet is located; the base is located below the water inlet.
[0014] As a further improvement to the technical solution, the base is separated from the interior of the first container; the base is a hollow structure; the second container, the third container, and the base are connected; the conductive liquid is distributed in the second container, the third container, and the base, and its function is to increase sensitivity.
[0015] As a further improvement to the technical solution, the end of the second container near the water inlet is connected to the top of the base; the end of the third container near the water inlet extends into the base, close to the inner bottom surface of the base, and communicates with the base.
[0016] As a further improvement to the technical solution, the water inlets are spaced apart along the circumferential direction of the center line of the first container.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This application separates the water in the detection area from the electronic water level gauge throughout the entire process, preventing impurities, sewage, plankton, etc., from coming into contact with the electronic water level gauge, thus protecting it from corrosion and dirt accumulation. Simultaneously, using a conductive liquid as a medium, the electronic water level gauge monitors changes in the conductive liquid level in a third container, converting the changes to determine the water level in the detection area. The purity, lack of impurities, and harmlessness of the conductive liquid protect the electronic water level gauge and extend its service life. In use, the first container is placed vertically in the detection area, with the water submerged above the inlet. Water enters the first container through the inlet, and after entering, it compresses the first container. The air inside the first container is drawn into the second container through the first gas-liquid separator, increasing the air pressure inside the second container. As the gas volume and pressure increase in the second container, the conductive liquid inside is compressed, causing it to flow into the third container. The liquid level in the second container drops, while the liquid level in the third container rises. The air in the third container is then discharged outdoors through the second gas-liquid separator. An electronic level gauge in the third container contacts the conductive liquid, monitoring its level change. The electronic level gauge records the current liquid level in the third container and records it as a detection parameter. The system measures the initial water level of a body of water. When the water level changes, such as rising while the position of the first container remains unchanged, the pressure on the first container increases, causing the water level inside it to rise. Since the air pressure in the first container is greater than that in the second container, air is forced into the second container, further increasing the air pressure. This causes the conductive liquid level in the second container to drop, while the conductive liquid level in the third container rises. The electronic water level gauge monitors the change in the conductive liquid level in the third container and calculates the water level of the entire body of water. Similarly, when the water level of the body of water... When the water level drops, the position of the first container remains unchanged. As the water level in the monitored area decreases, the pressure on the first container decreases, and the water level inside the first container begins to drop. The air pressure inside the first container decreases, while the air pressure inside the second container is greater than that inside the first container. The gas in the second container enters the first container through the first gas-liquid separator, causing the conductive liquid level in the second container to rise. The conductive liquid level in the third container decreases, and the air pressure inside the third container decreases. Outside air enters the third container through the second gas-liquid separator. The electronic water level gauge monitors the change in the conductive liquid level in the third container and calculates the water level of the monitored area after conversion. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of a non-contact electronic water level gauge provided by the present invention. Figure 1 ; Figure 2 for Figure 1 The front view; Figure 3 for Figure 2 Sectional view at point AA; Reference numerals: 1-First container, 11-Inlet, 12-Base, 2-Second container, 3-Third container, 4-Electronic water level gauge, 5-Gas-liquid separator. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.
[0021] The terms "first," "second," and similar words used in this invention application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Example 1: like Figures 1 to 3 As shown, a non-contact electronic water level gauge includes: a first container 1, a second container 2, a third container 3, an electronic water level gauge 4, and a gas-liquid separator 5; the first container 1, the second container 2, and the third container 3 are all elongated structures, preferably cylindrical; the volume of the first container 1 is larger than the volumes of the second container 2 and the third container 3, the second container 2 and the third container 3 are both disposed within the first container 1, the length directions of the first container 1, the second container 2, and the third container 3 are the same, the second container 2 and the third container 3 are connected, and conductive liquid, which can be water, is injected into the second container 2 and the third container 3, and the conductive liquid flows between the second container 2 and the third container 3; the electronic water level gauge 4 is disposed within the third container 3, and the conductive liquid and the electronic water level gauge 4 are connected. The bottom of the sub-water gauge 4 is in contact with the electronic water gauge 4, which is connected to an external display screen or control system circuit. The length direction of the electronic water gauge 4 is the same as the length direction of the third container 3. The gas-liquid separator 5 is set on the second container 2 and the third container 3. The gas-liquid separator 5 includes a first gas-liquid separator and a second gas-liquid separator. The first gas-liquid separator and the second gas-liquid separator can be gas-liquid separation valves. The gas-liquid separator 5 on the second container 2 is the first gas-liquid separator, and the gas-liquid separator 5 on the third container 3 is the second gas-liquid separator. The second container 2 is connected to the first container 1 through the gas-liquid separator 5. That is, the first gas-liquid separator separates the gas and liquid in the first container 1, so that the air in the first container 1 enters the second container 2, and the liquid in the first container 1 is isolated from the second container 2.
[0024] like Figures 1 to 3 As shown, preferably, the bottom end of the second container 2 is close to the end of the first container 1 where the inlet 11 is opened, and its top end is separated from the end of the first container 1 away from the inlet 11. The gas-liquid separator 5 on the second container 2 is located at the end of the second container 2 away from the inlet 11, that is, the gas-liquid separator 5 on the second container 2 is away from the inlet of the first container 1. Preferably, the gas-liquid separator 5 on the second container 2 is located on the top surface of the second container 2, so as to avoid the liquid in the first container 1 from prematurely submerging the gas-liquid separator on the second container 2, so that the gas in the first container 1 can enter the second container 2 as much as possible.
[0025] like Figures 1 to 3 As shown, preferably, the bottom end of the third container 3 is close to the end of the first container 1 where the water inlet 11 is opened, and the other end of the third container 3 extends upward through the first container 1; the gas-liquid separator 5 on the third container 3 is located at the end of the third container 3 that passes through the first container 1, that is, the second gas-liquid separator is located at the end of the third container 3 that passes through the first container 1, and the third container 3 is connected to the outside air through the second gas-liquid separator to increase or discharge the gas in the third container 3.
[0026] like Figure 1 As shown, preferably, the inlets 11 are evenly distributed along the circumferential direction of the center line of the first container 1 to facilitate the entry of liquid into the first container 1.
[0027] Work style: In use, the first container 1 is placed vertically in the detection water area, with the water submerged above the inlet 11. Water enters the first container 11 through the inlet 11, compressing the air inside. This air then passes through the first gas-liquid separator into the second container 2, increasing the gas pressure within the second container 2. As the gas volume and pressure increase in the second container 2, the conductive liquid inside is compressed, causing it to flow into the third container 3. The liquid level in the second container 2 decreases, while the liquid level in the third container 3 increases. The air in the third container 3 then passes through the second gas-liquid separator... The gas-liquid separator discharges outdoors. The electronic water level gauge 4 in the third container 3 contacts the conductive liquid, monitoring its level change. The electronic water level gauge 4 records the current level of the conductive liquid in the third container 3, which is then recorded as the initial water level of the detection area. When the water level in the detection area changes, such as when the water level rises while the position of the first container 1 remains unchanged, the pressure on the first container 1 increases, causing the water level in the first container 1 to rise. The air pressure in the first container 1 becomes greater than the air pressure in the second container 2, forcing air from the first container 1 into the second container 2. The air pressure in the second container 2 continues to increase, and the air pressure in the second container 2... As the conductive liquid level decreases, the conductive liquid level in the third container 3 increases. The electronic water level gauge 4 monitors the change in the conductive liquid level in the third container 3 and calculates the water level of the detected area. Similarly, when the water level in the detected area decreases, the position of the first container 1 remains unchanged. As the water level in the detected area decreases, the pressure on the first container 1 decreases, and the water level in the first container 1 begins to decrease. The air pressure in the first container 1 decreases, and the air pressure in the second container 2 is greater than that in the first container 1. The gas in the second container 2 enters the first container 1 through the first gas-liquid separator, causing the conductive liquid level in the second container 2 to rise and the conductive liquid level in the third container 3 to decrease. The air pressure inside container 3 decreases, and outside air enters the third container 3 through the second gas-liquid separator. The electronic water level gauge 4 monitors the change in the conductive liquid level inside the third container 3 and calculates the water level of the tested area through conversion ratio. The entire process separates the water in the tested area from the electronic water level gauge 4, preventing impurities, sewage, plankton, etc. in the tested area from coming into contact with the electronic water level gauge 4, thereby protecting the electronic water level gauge and preventing it from corroding and accumulating dirt. At the same time, using the conductive liquid as a medium, the electronic water level gauge 4 monitors the change in the conductive liquid level inside the third container 3 and calculates the water level of the tested area through conversion ratio. By utilizing the pure, impurity-free, and harmless characteristics of the conductive liquid, the electronic water level gauge is protected and its service life is extended.
[0028] like Figure 3As shown, preferably, the volume of the second container 2 is greater than the volume of the third container 3, that is, the diameter of the second container 2 is greater than the diameter of the third container 3, and the length of the second container 2 is less than the length of the third container 3. This makes the change in the conductive liquid level of the second container 2 less than the change in the conductive liquid level of the third container 3. The small change in the conductive liquid level of the second container 2 drives the large change in the conductive liquid level of the third container 3, thereby reducing the amount of conductive liquid used and increasing the measurement range of the electronic water level gauge 4.
[0029] Preferably, the electronic water level gauge 4 is vertically distributed; the sensing units on the electronic water level gauge 4 are distributed in parallel and spaced along the length of the electronic water level gauge 4; the spacing between the sensing units of the electronic water level gauge 4 gradually decreases from the end closest to the inlet 11; the rise of the conductive liquid level in the third container 3 is driven by the air pressure in the second container 2; the higher the conductive liquid level in the third container 3 rises, the greater the power required, resulting in a non-constant ratio between the air pressure change in the second container 2 and the conductive liquid level change in the third container 3; the conversion ratio between the conductive liquid level in the third container 3 and the water level in the detected area is not fixed; as the conductive liquid level in the third container 3 rises, the conversion ratio between the conductive liquid level in the third container 3 and the water level in the detected area becomes lower and lower.
[0030] Example 2: like Figure 3 As shown, compared with Embodiment 1, the difference is that the first container 1 also includes a base 12; the first container 1 has a base 12 at one end where the water inlet 11 is opened; the base 12 is located below the water inlet 11 and provides support to stabilize the first container 1.
[0031] like Figure 3 As shown, preferably, the base 12 is separated from the interior of the first container 1; the base 12 is a hollow structure; the second container 2 and the third container 3 are connected to the base 12; the conductive liquid is distributed in the second container 2, the third container 3 and the base 12, that is, the base 12 is filled with conductive liquid, the conductive liquid increases the weight of the base 12, thereby increasing the stability of the first container 1, and at the same time, using the base 12 as an intermediate container can increase the overall capacity and facilitate the flow of conductive liquid between the second container 2 and the third container 3.
[0032] like Figure 3 As shown, preferably, the end of the second container 2 near the inlet 11 is connected to the top of the base 12; the end of the third container 3 near the inlet 11 extends into the base 12, close to the inner bottom surface of the base 12, and communicates with the base 12, so that the conductive liquid can enter the third container 3 as much as possible. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A non-contact electronic water level gauge, characterized in that, include: First container (1); A water inlet (11) is provided on one side of the first container (1); The second container (2) is disposed inside the first container (1); The third container (3) is disposed inside the first container (1); the second container (2) and the third container (3) are connected; the first container (1), the second container (2) and the third container (3) are all elongated structures; the second container (2) and the third container (3) are filled with conductive liquid; Electronic water level gauge (4) installed in the third container (3); A gas-liquid separator (5) is disposed on the second container (2) and the third container (3).
2. The non-contact electronic water level gauge according to claim 1, characterized in that, The second container (2) and the third container (3) are in the same length direction as the first container (1); the electronic water gauge (4) is in the same length direction as the third container (3).
3. The non-contact electronic water level gauge according to claim 1, characterized in that, The bottom end of the second container (2) is close to the end of the first container (1) where the water inlet (11) is located, and its top end is separated from the end of the first container (1) away from the water inlet (11).
4. The non-contact electronic water level gauge according to claim 3, characterized in that, The gas-liquid separator (5) on the second container (2) is located at the end of the second container (2) away from the inlet (11).
5. The non-contact electronic water level gauge according to claim 1, characterized in that, The bottom end of the third container (3) is close to the end of the first container (1) where the water inlet (11) is located, and the other end of the third container (3) extends upward through the first container (1); the gas-liquid separator (5) on the third container (3) is located at the end of the third container (3) that passes through the first container (1).
6. The non-contact electronic water level gauge according to claim 1, characterized in that, The volume of the second container (2) is greater than the volume of the third container (3).
7. The non-contact electronic water level gauge according to claim 6, characterized in that, The electronic water gauge (4) is vertically distributed; the sensing units on the electronic water gauge (4) are distributed in parallel and spaced along the length of the electronic water gauge (4); the spacing between the sensing units of the electronic water gauge (4) gradually decreases from the end closest to the inlet (11).
8. The non-contact electronic water level gauge according to any one of claims 1-7, characterized in that, The first container (1) also includes a base (12); the base (12) is provided at one end of the first container (1) where the water inlet (11) is located; the base (12) is located below the water inlet (11).
9. The non-contact electronic water level gauge according to claim 8, characterized in that, The base (12) is separated from the interior of the first container (1); the base (12) is a hollow structure; the second container (2) and the third container (3) are connected to the base (12); the conductive liquid is distributed in the second container (2), the third container (3) and the base (12).
10. The non-contact electronic water level gauge according to claim 9, characterized in that, The second container (2) is connected to the top of the base (12) at one end near the water inlet (11); the third container (3) extends into the base (12) at one end near the water inlet (11), close to the inner bottom surface of the base (12), and communicates with the base (12).