A portable water level and temperature measuring device

By designing a mobile water level and temperature measuring device, utilizing an annular float and insulated barrel structure, and combining an ultrasonic level gauge and a water temperature sensor, the problem of missing water level and temperature data under extreme cold conditions was solved, achieving stable and accurate water level and temperature measurement.

CN224435523UActive Publication Date: 2026-06-30YANSHAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANSHAN UNIV
Filing Date
2025-09-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In extremely cold conditions, traditional water level gauges and ultrasonic level meters cannot accurately measure water levels due to the influence of ice, and float thermometers cannot measure water temperature when frozen, resulting in the loss of water level and temperature data in winter, and existing equipment cannot be moved or adjusted.

Method used

A mobile water level and temperature measuring device was designed, which adopts an annular float and a bottomless insulated barrel structure. It combines an ultrasonic level gauge and a water temperature sensor, and uses a micro-nano generator and a disturbance pump to generate bubble disturbance underwater to maintain measurement accuracy and stability.

Benefits of technology

It enables dynamic measurement of water level and temperature in an ice-covered environment, avoiding measurement angle offset and temperature stratification, and ensuring data continuity and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of water conservancy engineering monitoring technology, and in particular to a portable water level and temperature measuring device. The device includes an insulated tank, an air intake valve, an annular float, and a jetting pipe. The annular float floats on the water surface, providing uniform buoyancy and preventing unilateral tilting. The bottom of the bottomless insulated tank is fixed to the top of the float, with their inner spaces connected, protecting the internal air intake valve from harsh environmental conditions. An ultrasonic level gauge is installed inside the float, ensuring it remains vertically aligned with the water surface and isolating debris to improve water level measurement accuracy. A water temperature sensor is suspended from the bottom of the float via a suspension line, maintaining the target measurement depth regardless of water level fluctuations. The jetting pipe is horizontally suspended below the float, with uniformly spaced jet holes. The ejected gas creates a disturbance zone, breaking up water temperature stratification, preventing icing, and ensuring accurate water temperature measurement. The device is portable and suitable for different measurement sections.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering monitoring technology, and in particular to a portable water level and water temperature measuring device. Background Technology

[0002] Currently, there are generally two methods for measuring water levels in rivers and reservoirs: one is to uniformly and permanently install water level gauges along the river or reservoir slope towards the deeper water, and then record the water level data by reading the scale on the gauges on-site; the other method is to establish fixed measuring points on the river or reservoir slope and use an ultrasonic level gauge mounted on an extended arm to measure and record the water level data. For measuring water temperature in rivers and reservoirs, there are generally two methods: one is to use a handheld thermometer to read and record the water temperature at a depth of 0.5m below the surface; the other method is to install a thermometer submerged at a depth of 0.5m on a buoy floating on the water surface, and record the water temperature data transmitted back by the temperature controller.

[0003] With the arrival of winter in northern regions, especially under extreme cold conditions (outdoor temperatures dropping below -35°C), when the water level at monitoring sections falls below 2.0 meters, the ice layer in the river extends from the surface to the riverbed. Under the influence of cold air, the ice thickness exceeds 1.5 meters, making traditional water level gauges unable to record accurate water level data. Another type of water level monitoring device, ultrasonic level gauges, also fails because the measurement surface for ultrasonic waves is ice, which cannot effectively reflect echoes. Furthermore, since the ice layer is below the required depth, manual ice breaking to measure water temperature becomes impossible. Additionally, thermometers that were originally floating on the ice are now firmly frozen to the surface, losing their measuring function due to the ice's obstruction.

[0004] Currently, water level gauges and ultrasonic level meters are all fixed installations, and they cannot be moved and adjusted according to changes in water level or ice conditions at the monitoring points. This results in the inability to provide accurate water level and temperature measurements for most of the winter season, leading to a loss of water level / temperature data for approximately one-third of the year. This situation poses a significant challenge to hydrological data acquisition and water resource monitoring, requiring more advanced technologies to solve the problem of water level and temperature measurement under extreme weather and ice conditions. Utility Model Content

[0005] To address the technical problem that existing technologies cannot obtain effective water level and temperature data in cold, icy winter environments, this invention provides a portable water level and temperature measuring device.

[0006] Therefore, the present invention provides the following technical solution:

[0007] A portable water level and temperature measuring device includes an insulated bucket, an air intake valve, a float, and a jetting pipe. The float has an annular structure and floats on the water surface. The insulated bucket has no bottom and its bottom is fixedly connected to the top of the float, allowing vertical communication between the inner space of the insulated bucket and the float. An ultrasonic level gauge is installed inside the float, and a water temperature sensor is connected to the bottom of the float via a suspension line, with the water temperature sensor suspended below the float. The jetting pipe is connected to the bottom of the float via a suspension line and is horizontally suspended below the float. Jet holes are evenly distributed on the jetting pipe. The air intake valve is located inside the insulated bucket, and its outlet is connected to an air inlet pipe. The outlet of the air inlet pipe passes downward through the bottomless opening of the insulated bucket and the inner space of the float, communicating with the jetting pipe below the float.

[0008] Furthermore, it also includes a micro / nano generator and a disturbance pump. The outlet of the micro / nano generator is connected to the inlet of the injection pipe and the inlet of the disturbance pump respectively through the injection pipe. The inlet of the micro / nano generator is connected to the outlet of the inlet pipe.

[0009] Furthermore, the wall of the insulated bucket is a double-layer stainless steel structure, and a heating blanket is installed on the inner side of the inner wall of the insulated bucket.

[0010] Furthermore, a conduit is installed on the wall of the insulated container, and the water temperature sensor and the ultrasonic level gauge are electrically connected to the external power control cabinet through wiring, with the wiring running inside the conduit.

[0011] Furthermore, a sealing cap is installed on the top of the insulated container, and a vent valve communicating with the internal space of the insulated container is installed on the sealing cap.

[0012] Furthermore, a connecting plate is installed at the bottom of the insulated bucket, and the connecting plate is fixedly connected to the float by bolts.

[0013] Furthermore, a lifting ring is installed at the bottom of the pontoon, and the lifting line is connected to the pontoon through the lifting ring.

[0014] Advantages and positive effects of this utility model:

[0015] The device uses an annular buoy as its core buoyancy carrier, which allows buoyancy to be applied evenly to the whole, avoiding tilting caused by uneven weight distribution on one side, and providing a foundation for the horizontal stability of the water temperature sensor and the jet pipeline. At the same time, the design of the bottomless insulated tank fixed to the top of the buoy and the inner space being open vertically effectively prevents the impact of harsh external environments on the internal working equipment.

[0016] The ultrasonic level gauge is installed inside the annular float. Taking advantage of the float's buoyancy, it remains perpendicular to the water surface, preventing measurement angle shifts caused by swaying. Simultaneously, it isolates the ultrasonic signal from obstruction and reflection interference from debris on the outer water surface, improving measurement accuracy. The water temperature sensor is suspended below the float via a suspension line, dynamically maintaining the target measurement depth as the water level fluctuates.

[0017] The jet pipe and the water temperature sensor are located below the float, and the horizontally suspended jet pipe has uniform jet holes. The gas sprayed through the jet holes can create a disturbance area around the sensor, effectively breaking up the water temperature stratification in winter or deep water areas and preventing water from freezing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a portable water level and temperature measuring device provided by this utility model.

[0020] In the diagram: 1. Power control cabinet, 3. Injection hole, 4. Micro / nano generator, 5. Injection pipe, 6. Disturbance pump, 7. Conduit sleeve, 8. Lifting ring, 9. Lifting line, 10. Water temperature sensor, 11. Sealing cover, 13. Heating blanket, 14. Air intake valve, 15. Air inlet pipe, 17. Ultrasonic level gauge, 18. Vent valve, 19. Insulated tank, 20. Connecting plate, 21. Float, 22. Injection pipeline. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] This utility model provides a portable water level and water temperature measuring device, such as Figure 1As shown, the system includes an insulated tank 19, an air intake valve 14, a float 21, a jet pipe 22, a micro / nano generator 4, and a disturbance pump 6. The float 21 has an annular structure and floats on the water surface. The insulated tank 19 has no bottom and its walls are made of double-layered stainless steel. A heating blanket 13 is installed on the inner side of the inner wall of the insulated tank 19. A connecting plate 20 is installed at the bottom of the insulated tank 19, and the connecting plate 20 is fixedly connected to the float 21 by bolts, allowing the inner ring space of the insulated tank 19 and the float 21 to be vertically connected. A sealing cap 11 is installed on the top of the insulated tank 19, and an air vent 18 communicating with the internal space of the insulated tank 19 is installed on the sealing cap 11. An ultrasonic level gauge 17 is installed on the inner side of the float 21.

[0023] A lifting ring 8 is installed at the bottom of the float 21, and each lifting ring 8 is connected to a suspension line 9. The float 21 is connected to the water temperature sensor 10 and the injection pipe 22 through the suspension line 9. The water temperature sensor 10 and the injection pipe 22 are both suspended below the float 21 through the suspension line 9. The injection pipe 22 is evenly provided with injection holes 3. The air intake valve 14 is located inside the heat preservation tank 19. The air intake valve 14 is connected to the air intake pipe 15 at the air outlet. The air intake pipe 15 passes downward through the bottomless opening of the heat preservation tank 19 and the inner ring space of the float 21, and is connected to the air intake of the micro-nano generator 4 below the float 21. The air outlet of the micro-nano generator 4 is connected to the air intake of the injection pipe 22 and the turbulence pump 6 through the injection pipe 5.

[0024] A conduit sleeve 7 is installed on the wall of the insulated tank 19. The disturbance pump 6, micro-nano generator 4, water temperature sensor 10 and ultrasonic level gauge 17 are all electrically connected to the external power control cabinet 1 through the wiring, which is run through the conduit sleeve 7.

[0025] Working principle: The device uses an annular buoy 21 as the core buoyancy carrier, which floats on the water surface of the measurement section by its own buoyancy, providing stable support for the entire device.

[0026] The insulated bucket 19 adopts a double-layer stainless steel structure. The temperature-controllable heating blanket 13 installed on the inner and outer sides can be adjusted by the power control cabinet 1. Together with the insulation material filled between the double layers, it reduces the heat exchange between the inside of the bucket and the outside. The sealing cover 11 on the top of the insulated bucket can further reduce heat loss, while the vent valve 18 on the sealing cover can balance the air pressure inside and outside the insulated bucket in real time, avoiding the damage to the components caused by the rise of air pressure inside the bucket during the heating process. At the same time, it prevents a large amount of cold air from entering and affecting the insulation effect, and provides a stable working environment for components such as the air intake valve 14 inside the bucket.

[0027] The ultrasonic level gauge 17, installed inside the float 21, can directly emit ultrasonic signals to the water surface. The distance to the water surface is calculated by the signal reflection time, and combined with the float's own floating height, the water level data of the measurement section is obtained in real time. The water temperature sensor 10, suspended below the float, is fixed at 0.5m underwater after prior debugging. This depth is the target water layer for stable temperature measurement. The sensor transmits the detected water temperature signal to the power control cabinet 1 through the wiring through the conduit sleeve 7.

[0028] The air intake valve 14 draws in air heated by the heating blanket 13 from the insulated tank and delivers it to the underwater micro-nano generator 4 via the air intake pipe 15. The number of bubbles generated by the generator can be controlled by adjusting the air intake valve. The micro-nano generator 4 converts the air into micro-nano bubbles. A portion of the bubbles is delivered to the spray pipe 22 through the spray pipe 5 and ejected from the evenly distributed spray holes 3 on the pipe, disturbing the target water layer. At the same time, the gas ejected from the spray holes 3 and the micro-nano generator 4 is heated air, breaking up the temperature stratification of the water layer and preventing the water from freezing at low temperatures. Another portion of the bubbles is delivered to the disturbance pump 6 through the spray pipe 5. The disturbance pump 6 further enhances the water layer flow effect, optimizes the local environment of the measured water area, and improves the stability of water temperature and water level measurements.

[0029] The float 21 can float up and down with the water level changes at the measurement section. It is fixed by the length of the suspension line 9, so that the water temperature sensor 10 is always kept at the target measurement depth of 0.5m underwater, avoiding the temperature measurement position shift caused by water level fluctuations. When the water level at the measurement position drops and the measurement conditions are no longer met, the entire device can be manually moved to the next measurement section that meets the requirements.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable water level and temperature measuring device, characterized in that, The system includes an insulated bucket (19), an air intake valve (14), a float (21), and a jet pipe (22). The float (21) is an annular structure and floats on the water surface. The insulated bucket (19) is a bottomless structure, with its bottom fixedly connected to the top of the float (21), allowing the inner space of the insulated bucket (19) and the float (21) to be vertically connected. An ultrasonic level gauge (17) is installed on the inner side of the float (21), and a water temperature sensor (10) is connected to the bottom of the float (21) via a suspension line (9). The water temperature sensor (10) is suspended below the float (21). The injection pipe (22) is connected to the bottom of the float (21) via a suspension line (9), and the injection pipe (22) is horizontally suspended below the float (21). The injection pipe (22) is evenly provided with injection holes (3). The air intake valve (14) is located inside the heat preservation barrel (19). The air intake valve (14) is connected to the air intake pipe (15) at the air outlet end. The air intake pipe (15) passes downward through the bottomless opening of the heat preservation barrel (19) and the inner ring space of the float (21), and communicates with the injection pipe (22) below the float (21).

2. The portable water level and temperature measuring device according to claim 1, characterized in that, It also includes a micro-nano generator (4) and a disturbance pump (6). The outlet of the micro-nano generator (4) is connected to the inlet of the injection pipe (22) and the disturbance pump (6) respectively through the injection pipe (5). The inlet of the micro-nano generator (4) is connected to the outlet of the inlet pipe (15).

3. The portable water level and temperature measuring device according to claim 1, characterized in that, The wall of the insulated bucket (19) is a double-layer stainless steel structure, and a heating blanket (13) is installed on the inner side of the inner wall of the insulated bucket (19).

4. The portable water level and temperature measuring device according to claim 1, characterized in that, The wall of the insulated bucket (19) is fitted with a conduit sleeve (7). The water temperature sensor (10) and the ultrasonic level gauge (17) are electrically connected to the external power control cabinet through a line, which is run inside the conduit sleeve (7).

5. A portable water level and temperature measuring device according to claim 1, characterized in that, A sealing cap (11) is installed on the top of the heat preservation bucket (19), and a vent valve (18) that communicates with the internal space of the heat preservation bucket (19) is installed on the sealing cap (11).

6. A portable water level and temperature measuring device according to claim 1, characterized in that, A connecting plate (20) is installed at the bottom of the insulated bucket (19), and the connecting plate (20) is fixedly connected to the float (21) by bolts.

7. A portable water level and temperature measuring device according to claim 1, characterized in that, A lifting ring (8) is installed at the bottom of the pontoon (21), and a lifting line (9) is connected to the pontoon (21) through the lifting ring (8).