Intelligent adjusting type liquid level monitor

Abstract

The utility model discloses an intelligent adjusting type liquid level monitor which comprises an air compressor, one side of the air compressor is connected with a freezing dryer, one side of the freezing dryer is connected with a nitrogen making machine, the nitrogen making machine is provided with an air outlet, the air outlet is connected with an intelligent pressure regulator, and the intelligent pressure regulator is installed based on a sleeve. The utility model relates to the technical field of liquid level monitors, in particular to an intelligent adjusting type liquid level monitor, which integrates the functions of nitrogen generation, dynamic pressure regulation and ultrasonic detection, provides stable high-purity nitrogen by using a nitrogen generator, monitors the pressure of a sleeve in real time by combining a barometer, and is linked with a high-speed electromagnetic valve to automatically supplement pressure. Pressure fluctuation and test distortion caused by gas leakage or insufficient nitrogen are effectively eliminated; meanwhile, the high-frequency ultrasonic monitor remarkably improves the liquid level measurement precision and reliability in a nitrogen noise reduction environment, and the detection efficiency and the system stability are greatly improved in cooperation with a quick release assembly and a multi-sealing design.

Description

Technical Field

[0001] This utility model relates to the field of liquid level monitoring technology, specifically to an intelligent adjustable liquid level monitoring instrument. Background Technology

[0002] Oilfields typically use fluid level monitors for flow rate testing. The specific procedure involves changing the well stroke rate and then connecting a fluid level monitor to the casing vent to test the dynamic fluid level and thus determine the formation's fluid supply.

[0003] Before testing, a nitrogen tank needs to be connected to pressurize the casing. The monitor uses ultrasound to detect the liquid level. During the transmission of ultrasound, energy is lost or interfered with by external factors. Nitrogen is an inert gas with stable chemical properties and does not easily react with other substances. It can reduce the energy loss and scattering of ultrasound, thereby reducing interference and improving the accuracy and reliability of the test. However, sometimes leakage at the casing opening or insufficient nitrogen can lead to unstable test data. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent adjustable liquid level monitor, which solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an intelligent adjustable liquid level monitor, including an air compressor, a refrigerated dryer connected to one side of the air compressor, a nitrogen generator connected to one side of the refrigerated dryer, an air outlet provided on the nitrogen generator, and an intelligent pressure regulator connected to the air outlet, the intelligent pressure regulator being installed based on a sleeve.

[0006] A liquid level detection panel is provided on one side of the nitrogen generator;

[0007] The intelligent pressure regulator includes a sealing sleeve, which is installed on the sleeve. The sealing sleeve is provided with a quick-release assembly for connecting with the sleeve. An air supply pipe is connected to the sealing sleeve and an air outlet. A control valve is provided on the air supply pipe.

[0008] The intelligent pressure regulator also includes an ultrasonic monitor, which is installed on a sealing sleeve and connected to a liquid level monitoring panel. A barometer is also installed on the sealing sleeve, with the probe of the barometer extending into the sleeve.

[0009] Preferably, the end of the air supply pipe is provided with a connecting pipe head, which is threadedly connected to the air outlet.

[0010] Preferably, the sealing sleeve seat is a cylindrical structure plate, and the ultrasonic monitor is connected to the sealing sleeve seat by screws.

[0011] Preferably, the sealing sleeve is provided with a fixed seat, and the barometer is provided with a connector that is threadedly connected to the fixed seat.

[0012] Preferably, the top end of the sleeve is provided with a flange plate, and the flange plate is provided with a plurality of through holes.

[0013] Preferably, the quick-release assembly includes a plurality of through rods, which pass through a plurality of through holes. The ends of the through rods are connected to clamping blocks. A sealing ring gasket is provided on the sealing sleeve and fits against the top of the sleeve. After the through rods on the sealing sleeve pass through the through holes, they rotate to make the clamping blocks fit against the bottom surface of the flange plate.

[0014] Beneficial effects

[0015] This invention provides an intelligent adjustable liquid level monitor. It offers the following advantages: This intelligent adjustable liquid level monitor integrates nitrogen generation, dynamic pressure regulation, and ultrasonic detection functions. It utilizes a nitrogen generator to provide stable, high-purity nitrogen, combined with a barometer to monitor the casing pressure in real time and automatically replenish pressure via a high-speed solenoid valve. This effectively eliminates pressure fluctuations and test distortions caused by leaks or insufficient nitrogen. Simultaneously, the high-frequency ultrasonic monitor significantly improves the accuracy and reliability of liquid level measurement in a nitrogen-noise-reducing environment. Combined with quick-release components and a multi-seal design, it greatly enhances detection efficiency and system stability. Attached Figure Description

[0016] Figure 1 This is a first three-dimensional structural diagram of the intelligent adjustable liquid level monitor described in this utility model.

[0017] Figure 2 This is a partial cross-sectional view of the intelligent adjustable liquid level monitor described in this utility model.

[0018] Figure 3 This is a partial three-dimensional structural diagram of the intelligent adjustable liquid level monitor described in this utility model.

[0019] In the diagram: 1. Air compressor; 2. Refrigerated dryer; 3. Nitrogen generator; 4. Air outlet; 5. Liquid level detection panel; 6. Sealing sleeve; 7. Quick-release assembly; 8. Air supply pipe; 9. Control valve; 10. Ultrasonic monitor; 11. Barometer; 12. Mounting base; 13. Flange plate; 701. Through rod; 702. Sealing ring gasket; 703. Clamping block. Detailed Implementation

[0020] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides an implementation scheme: In modern ultrasonic testing of oilfield fluid levels, a nitrogen tank needs to be connected to pressurize the casing first. Nitrogen is an inert gas with stable chemical properties and does not easily react with other substances. It can reduce the energy loss and scattering of ultrasonic waves, thereby reducing interference and improving the accuracy and reliability of the test. However, sometimes leakage at the casing opening or insufficient nitrogen can lead to unstable test data.

[0022] According to the instruction manual Figure 1-3 As can be seen, this application discloses an intelligent adjustable liquid level monitor, including an air compressor 1, a refrigerated dryer 2 for removing moisture and impurities from compressed air connected to one side of the air compressor 1, and a nitrogen generator 3 for generating high-purity nitrogen as a detection gas source connected to one side of the refrigerated dryer 2.

[0023] According to the instruction manual Figure 1-3 It can be seen that the nitrogen generator 3 is equipped with an air outlet 4, and an intelligent pressure regulator is connected to the air outlet 4. The pressure regulator is installed based on the air guide sleeve inserted into the liquid tank to be tested. A liquid level detection panel 5 is provided on one side of the nitrogen generator 3 to display real-time liquid level data and system status.

[0024] According to the instruction manual Figure 1-3 It is known that the above-mentioned intelligent pressure regulator includes a cylindrical alloy structure sealing sleeve 6, the surface of which is anodized to enhance corrosion resistance. The sealing sleeve 6 is installed at the top of the sleeve and is equipped with a quick-release assembly 7 for achieving an airtight connection with the sleeve. Furthermore, the sealing sleeve 6 is connected to the outlet 4 of the nitrogen generator 3 through the air supply pipe 8. The end of the air supply pipe 8 is preferably equipped with a connecting pipe head with an M22×1.5 standard thread and a conical seal to ensure a leak-free connection with the outlet 4. The air supply pipe 8 is equipped with a pilot-operated electromagnetic control valve 9 with a response speed of less than 50 milliseconds, which can achieve precise flow regulation of 0-50 liters / minute under 0.5 to 10 MPa conditions.

[0025] Furthermore, according to the instruction manual appendix Figure 1-3It is known that the intelligent pressure regulator also includes a high-frequency pulse ultrasonic monitor 10, which operates at a frequency of 1 MHz and is fixed to the top interface of the sealing sleeve 6 by screws. It provides non-contact measurement with an accuracy of ±0.1 mm and a range of 0-15 meters. The ultrasonic monitor 10 is connected to the liquid level monitoring panel through a shielded cable to transmit real-time liquid level signals. The sealing sleeve 6 is also equipped with a ceramic piezoresistive barometer 11, whose probe is fixed to a special fixing seat 12 through a G1 / 4 threaded interface and extends into the sleeve to monitor pressure fluctuations. The measurement accuracy reaches ±0.5 kPa. When the barometer 11 detects the internal pressure of the sealing sleeve 6, when the pressure is missing, nitrogen is replenished into the sleeve through the gas supply pipe 8.

[0026] As a preferred option, the end of the trachea 8 is further provided with a threaded connection tube head with a tapered seal.

[0027] As a preferred option, the cylindrical sealing sleeve 6 has enhanced structural rigidity, and the ultrasonic monitor 10 is double-fastened by locating pins and screws.

[0028] As a preferred option, the sealing sleeve 6 is further equipped with a special fixing seat 12 with G1 / 4 internal thread, and the barometer 11 is installed with the sealing ring through an external threaded connector.

[0029] As a preferred option, the top of the sleeve is further provided with a flange plate 13 with a thickness of not less than 12 mm, and 4 to 6 through holes of H7 precision are evenly distributed on the plate.

[0030] As a preferred option, the quick-release assembly 7 further includes a through rod 701 matching the number of through holes, with a rotatable L-shaped clamp 703 connected to its lower end. The bottom of the sealing sleeve 6 is fitted with an oil-resistant fluororubber sealing ring gasket 702. During installation, the through rod 701 is vertically inserted into the through hole and rotated 90 degrees so that the clamp 703 hooks onto the bottom surface of the flange plate 13. Finally, the airtight assembly is completed within 30 seconds by tightening the top lock nut. The disassembly process can be performed by reversing the operation.

[0031] In summary, this intelligent adjustable liquid level monitor integrates nitrogen generation, dynamic pressure regulation, and ultrasonic detection functions. It utilizes a nitrogen generator 3 to provide stable, high-purity nitrogen, and a barometer 11 to monitor the casing pressure in real time, automatically replenishing pressure via a high-speed solenoid valve. This effectively eliminates pressure fluctuations and test distortions caused by leaks or insufficient nitrogen. Simultaneously, the high-frequency ultrasonic monitor 10 significantly improves the accuracy and reliability of liquid level measurement in a nitrogen-cooled environment. Combined with the quick-release component 7 and multiple sealing designs, it greatly enhances detection efficiency and system stability.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent adjustable liquid level monitor, comprising an air compressor (1), a refrigerated dryer (2) connected to one side of the air compressor (1), and a nitrogen generator (3) connected to one side of the refrigerated dryer (2), characterized in that, The nitrogen generator (3) is provided with an outlet (4), and an intelligent pressure regulator is connected to the outlet (4). The intelligent pressure regulator is installed based on a sleeve. A liquid level detection panel (5) is provided on one side of the nitrogen generator (3); The intelligent pressure regulator includes a sealing sleeve (6), which is installed on the sleeve. The sealing sleeve (6) is provided with a quick-release assembly (7) for connecting with the sleeve. An air supply pipe (8) is connected to the sealing sleeve (6) and an air outlet (4). A control valve (9) is provided on the air supply pipe (8). The intelligent pressure regulator also includes an ultrasonic monitor (10), which is installed on a sealing sleeve (6) and connected to a liquid level monitoring panel. A barometer (11) is also provided on the sealing sleeve (6), with the probe of the barometer (11) extending into the sleeve.

2. The intelligent adjustable liquid level monitor according to claim 1, characterized in that, The end of the air supply pipe (8) is provided with a connecting pipe head, which is threadedly connected to the air outlet (4).

3. The intelligent adjustable liquid level monitor according to claim 2, characterized in that, The sealing sleeve (6) is a columnar structure plate, and the ultrasonic monitor (10) is connected to the sealing sleeve (6) by screws.

4. The intelligent adjustable liquid level monitor according to claim 3, characterized in that, The sealing sleeve (6) is provided with a fixing seat (12), and the barometer (11) is provided with a connector that is threadedly connected to the fixing seat (12).

5. The intelligent adjustable liquid level monitor according to claim 4, characterized in that, The top end of the sleeve is provided with a flange plate (13), and the flange plate (13) is provided with several through holes.

6. The intelligent adjustable liquid level monitor according to claim 5, characterized in that, The quick-release assembly (7) includes several through rods (701), which pass through several through holes. The ends of the through rods (701) are connected to clamps (703). A sealing ring gasket (702) is provided on the sealing sleeve (6) and fits against the top of the sleeve. After the through rods (701) on the sealing sleeve (6) pass through the through holes, they rotate to make the clamps (703) fit against the bottom surface of the flange plate (13).

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