High-temperature bubble type water level elevation automatic monitoring device

Abstract

The utility model provides a kind of high-temperature bubble type water level elevation automation monitoring device, comprising: bubble nozzle, copper pipe, pipe joint, industrial hose, air pump, outer shell, inner shell, sealing cover and pressure sensor assembly;Inner shell is sleeved in outer shell, and the gap between outer shell and inner shell forms heat insulation layer, and the opening of outer shell is provided with sealing cover, and sealing cover forms closed space with inner shell;Pressure sensor assembly and air pump are arranged in closed space, and pressure sensor assembly collects pressure value and water temperature to obtain water level value;One end of copper pipe is communicated with bubble nozzle, and the other end is communicated with one end of industrial hose by pipe joint, and the other end of industrial hose is communicated with air pump, by setting inner shell in outer shell, heat insulation layer is formed between inner shell and outer shell, the temperature of internal closed space can be effectively controlled, and deviation of measurement result caused by temperature influence on pressure sensor assembly is avoided.

Description

Technical Field

[0001] This utility model relates to the field of geothermal resource monitoring technology, and in particular to a high-temperature bubble-type automated water level and elevation monitoring device. Background Technology

[0002] There are many methods for measuring water level and temperature. Currently, commonly used technologies include submersible pressure sensor method, ultrasonic measurement method, radar measurement method, and bubble level gauge method. Among them, submersible pressure sensor method and bubble level gauge method are widely used in automated water level and temperature monitoring systems due to their structural characteristics and applicability.

[0003] The submersible pressure sensor method integrates the sensing element and signal processing circuitry into the probe, which is then directly immersed in water for measurement. This method performs well in ambient temperature water, offering convenient installation and stable operation. However, in high-temperature water environments, the internal electronic components, sealing structure, and connecting cables are susceptible to heat damage, leading to shortened lifespan or even functional failure. Furthermore, the thermal expansion and contraction caused by high temperatures significantly interferes with the deformation-based pressure sensing element, severely impacting the accuracy of the measurement data.

[0004] Traditional bubble level gauges also suffer from insufficient high-temperature adaptability. Several key components are prone to aging or damage under high-temperature conditions, which not only shortens equipment lifespan but may also cause system failures. Furthermore, due to the general lack of effective heat insulation design in pressure sensing modules, measurement accuracy decreases significantly under high-temperature conditions. For example, the measurement error can be controlled within ±3cm at room temperature, but expands to ±8cm at 120℃.

[0005] In summary, existing technologies have significant limitations in high-temperature water level and temperature monitoring scenarios, and there is an urgent need to develop a new monitoring device that can operate stably for a long time in high-temperature environments and has high-precision measurement capabilities. Utility Model Content

[0006] The purpose of this invention is to provide a high-temperature bubble-type automated water level and elevation monitoring device, which is a novel monitoring device capable of long-term stable operation in high-temperature environments and possessing high-precision measurement capabilities.

[0007] To address the aforementioned problems, this utility model provides a high-temperature bubble-type automated water level and elevation monitoring device, comprising: a bubble nozzle, a copper pipe, a pipe connector, an industrial hose, an air pump, an outer shell, an inner shell, a sealing cap, and a pressure sensor assembly; the inner shell is fitted inside the outer shell, and the gap between the outer shell and the inner shell forms a heat insulation layer; the sealing cap is provided at the opening of the outer shell, and the sealing cap and the inner shell form a closed space; the pressure sensor assembly and the air pump are disposed within the closed space, and the pressure sensor assembly collects pressure values ​​and water temperature to obtain water level values; one end of the copper pipe is connected to the bubble nozzle, and the other end is connected to one end of the industrial hose through the pipe connector, and the other end of the industrial hose is connected to the air pump.

[0008] Furthermore, the heat insulation layer in the aforementioned high-temperature bubble-type automated water level elevation monitoring device is filled with thermal insulation material.

[0009] Furthermore, the insulation material in the aforementioned high-temperature bubble-type automated water level elevation monitoring device is a rock wool insulation layer.

[0010] Furthermore, the above-mentioned high-temperature bubble-type automatic water level elevation monitoring device also includes: a filter screen; the filter screen is disposed on the outside of the outer shell, and the outer shell and the inner shell are provided with first mounting holes at corresponding positions; the air inlet of the air pump draws in air through the filter screen.

[0011] Furthermore, the above-mentioned high-temperature bubble-type automated water level elevation monitoring device also includes: a debugging and power interface; the debugging and power interface is located on the outside of the outer shell, and the corresponding positions of the outer shell and the inner shell are provided with second mounting holes; the air pump and the pressure sensor assembly are electrically connected to the debugging and power interface.

[0012] Furthermore, the aforementioned high-temperature bubble-type automated water level elevation monitoring device also includes: a waterproof button; the waterproof button is located on the outside of the outer shell, and a third mounting hole is provided at the corresponding position of the outer shell and the inner shell; the waterproof button is used to control the opening and closing of the air pump.

[0013] Furthermore, the bottom of the outer shell of the aforementioned high-temperature bubble-type automated water level elevation monitoring device is provided with a fixed support.

[0014] Furthermore, the aforementioned high-temperature bubble-type automated water level elevation monitoring device also includes: a high-temperature resistant lithium battery pack and a solar charging module; the high-temperature resistant lithium battery pack is made of lithium iron phosphate; the surface of the solar charging module is covered with tempered glass and has a built-in monocrystalline silicon solar cell; the solar charging module charges the high-temperature resistant lithium battery pack.

[0015] The above-mentioned technical solution of this utility model has the following beneficial technical effects: by setting an inner shell inside the outer shell and using the gap between the inner shell and the outer shell to form a heat insulation layer, the temperature of the internal enclosed space can be effectively controlled, and the pressure sensor assembly can be prevented from being affected by temperature, thus avoiding deviation in the measurement results. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram according to an embodiment of the present utility model; Figure label: 1. Bubble nozzle; 2. Copper pipe; 3. Pipe fitting; 4. Industrial hose; 5. Filter screen; 6. Debugging and power interface; 7. Waterproof button; 8. Air pump; 9. Outer shell; 10. Heat insulation layer; 11. Inner shell; 12. Pressure sensor assembly; 13. Sealing cover. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0018] refer to Figure 1This invention provides a high-temperature bubble-type automated water level elevation monitoring device, comprising: a bubble nozzle 1, a copper pipe 2, a pipe connector 3, an industrial hose 4, an air pump 8, an outer shell 9, an inner shell 11, a sealing cap 13, and a pressure sensor assembly 12. The inner shell 11 is fitted inside the outer shell 9, and a heat insulation layer 10 is formed in the gap between the outer shell 9 and the inner shell 11. To achieve better performance, the heat insulation layer 10 is filled with heat-insulating material, such as rock wool, and high-temperature resistant sealant can also be injected. A sealing cap 13 is provided at the opening of the outer shell 9, thus forming a closed space with the inner shell 11. The air pump 8 and the pressure sensor assembly 12 are disposed within this closed space. One end of the copper pipe 2 is connected to the bubble nozzle 1, and the other end is connected to one end of the industrial hose 4 via the pipe connector 3. The other end of the industrial hose 4 is connected to the air pump. Specifically, through holes for the industrial hose 4 to pass through are provided at corresponding positions on the outer shell 9 and the inner shell 11, and sealing measures are implemented at these through holes. The bubble nozzle 1 is made of porous ceramic, which has good corrosion resistance. Its surface is uniformly distributed with 0.3mm diameter air jet holes arranged in a honeycomb pattern, ensuring the generation of uniform microbubbles with a diameter of 1-2mm, avoiding pressure fluctuations caused by the collapse of large bubbles. The copper tube 2 has a wall thickness of 1.2mm, providing good pressure resistance and corrosion resistance; even in environments ranging from -40 to 125℃, its influence will not cause measurement data distortion. The industrial hose 4 has poor thermal conductivity, preventing heat transfer to the pressure sensor assembly 12 and affecting the final measurement results. The air pump 8 outputs a stable air pressure of 0.5-1MPa and is heat-resistant up to 100℃. A fixing bracket is provided at the bottom of the outer casing 9 for stable installation at the geothermal wellhead.

[0019] Since the ambient temperature is often high when measuring geothermal resources, the pressure sensor assembly 12 is easily affected by the ambient temperature, resulting in a large deviation between the measurement results and the actual situation. Therefore, by installing an inner shell 11 inside the outer shell 9 and using the gap between the two to form a heat insulation layer, and further filling it with rock wool and / or high-temperature resistant sealant, the temperature of the internal enclosed space can be effectively controlled, and the pressure sensor assembly 12 can be prevented from being affected by temperature, thus avoiding deviation in the measurement results.

[0020] A filter screen 5 is also provided on the outside of the outer casing 9. The air inlet of the air pump 8 draws in air through the filter screen 5 to ensure that the air entering the air pump 8 is free of impurities. At the same time, for easy installation, first mounting holes are provided on the outer casing 9 and the inner casing 11 to facilitate the passage of pipes.

[0021] An adjustment and power interface 6 is also provided on the outside of the outer casing 9. The air pump 8 and the pressure sensor assembly 12 are electrically connected to the adjustment and power interface 6. In addition, for easy installation, a second mounting hole is provided on the outer casing 9 and the inner casing 11 to facilitate the passage of pipes.

[0022] A waterproof button 7 is also provided on the outside of the outer casing 9, which is used to control the air pump 8 to turn on and off. In addition, for easy installation, a third mounting hole is provided on the outer casing 9 and the inner casing 11 to facilitate the passage of pipes.

[0023] To ensure long-term operation, a high-temperature resistant lithium battery pack and a solar charging module are also included. The solar charging module charges the high-temperature resistant lithium battery pack, which in turn provides power to the air pump 8 and the pressure sensor assembly 12. The lithium battery pack uses lithium iron phosphate and can be charged and discharged normally in environments ranging from -20℃ to 120℃. The surface of the solar charging module is covered with scratch-resistant and wear-resistant tempered glass, and it contains high-efficiency monocrystalline silicon solar cells.

[0024] To automatically correct measurement deviations and improve monitoring accuracy, a self-calibration program can be initiated periodically to calibrate the pressure sensor assembly at zero and full scale using the built-in standard pressure source, and then feed the calibration data back to the data processing module.

[0025] During operation, the bubble nozzle 1 and copper pipe 2 are placed below the water surface. Typically, the bubble nozzle 1 should be below the historical lowest water level. The air pump 8 is activated via the waterproof button 7. Air is drawn in through the filter screen 5 and then sequentially passed through the industrial hose 4, pipe connector 3, and copper pipe 2 to first expel the high-temperature water from the pipes, finally exiting from the bubble nozzle 1. Because the bubble nozzle 1 has uniformly distributed 0.3mm diameter air jet holes, it can generate uniform microbubbles with a diameter of 1-2mm, minimizing pressure fluctuations. At this time, the pressure sensor assembly 12 measures the gas pressure inside the pipe, combines it with real-time water temperature readings and a water density table, and finally calculates the water level elevation and sends it to the server for automated monitoring. Simultaneously, an automatic calibration program is periodically initiated to ensure the accuracy of the measurement data. Equipped with a high-temperature resistant lithium battery pack and a solar charging module, this system... It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A high-temperature bubble-type automated water level elevation monitoring device, characterized in that, include: Bubble nozzles, copper tubes, pipe fittings, industrial hoses, air pumps, housings, inner housings, sealing caps, and pressure sensor assemblies; The inner shell is fitted inside the outer shell, and the gap between the outer shell and the inner shell forms a heat insulation layer. The sealing cover is provided at the opening of the outer shell, and the sealing cover and the inner shell form a closed space. The pressure sensor assembly and the air pump are installed in the enclosed space. The pressure sensor assembly collects pressure values ​​and water temperature to obtain water level values. One end of the copper tube is connected to the bubble nozzle, and the other end is connected to one end of the industrial hose through the pipe joint. The other end of the industrial hose is connected to the air pump.

2. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 1, characterized in that: The insulation layer is filled with thermal insulation material.

3. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 2, characterized in that: The insulation material is a rock wool insulation layer.

4. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 1, characterized in that, Also includes: Filter screen; The filter screen is disposed on the outside of the outer shell, and the outer shell and the inner shell are provided with first mounting holes at corresponding positions; The air pump draws in air through the filter screen.

5. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 1, characterized in that, Also includes: Debugging and power interface; The debugging and power interface is located on the outside of the outer shell, and the outer shell and the inner shell are provided with second mounting holes at corresponding positions; The air pump and the pressure sensor assembly are electrically connected to the debugging and power interface.

6. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 1, characterized in that, Also includes: Waterproof buttons; The waterproof button is located on the outside of the outer shell, and the outer shell and the inner shell are provided with a third mounting hole at corresponding positions; The waterproof button is used to control the air pump to turn on and off.

7. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 1, characterized in that: A fixed bracket is provided at the bottom of the outer casing.

8. The high-temperature bubble-type automated water level and elevation monitoring device according to claim 1, characterized in that, Also includes: High-temperature resistant lithium battery packs and solar charging modules; The high-temperature resistant lithium battery pack is made of lithium iron phosphate. The surface of the solar charging module is covered with tempered glass and contains a built-in monocrystalline silicon cell. The solar charging module charges the high-temperature resistant lithium battery pack.

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