Detection test device in ore pulp conveying pipe

Abstract

The invention discloses a detection test device in an ore pulp conveying pipe, which comprises a fluid supply module and a visual test pipeline module which are sequentially connected to form a circulation path, the fluid supply module is used for conveying fluid into the circulation path, and the visual test pipeline module is used for providing different test pipelines; the detection ball module comprises a ball serving bin, a detection ball is arranged in the ball serving bin, and the ore pulp water conveying pipe is detected by putting the detection ball into the circulation path; according to the invention, the detection ball is thrown into the pipeline, so that the detection ball passes through various pipelines with different bending degrees, various test data in the pipeline are obtained, a comprehensive basis is provided for evaluation of the running state of the pipeline, the detection function of the detection ball is verified, and reliable data is provided for subsequent actual detection.

Description

Technical Field

[0001] This invention relates to the field of pipeline leak detection and fluid movement monitoring technology, and in particular to a testing device for detecting leaks inside a slurry transport pipe. Background Technology

[0002] Slurry water pipelines are widely used in mining, smelting and other industrial fields. They transport slurry fluids containing solid particles for a long time. Problems such as uneven pressure distribution and slurry deposition are prone to occur in the pipeline. At the same time, pipeline wear and corrosion can lead to leaks, affecting the transportation efficiency and causing resource waste and environmental pollution.

[0003] Among various pipeline internal condition monitoring technologies, deploying internal detectors is a common method. This method involves placing a spherical or ball-shaped carrier equipped with sensing units (such as magnetic flux leakage sensors, ultrasonic sensors, inertial measurement units, and cameras) into the pipeline, allowing it to flow with the medium and thus enabling "online" detection of pipeline wall thickness, defects, and sedimentation conditions. However, the actual effectiveness of this technology highly depends on the design performance of the detector itself and its adaptability to complex slurry flow environments. Currently, this field faces the challenge of "lacking an accurate quantitative evaluation system for assessing detection effectiveness." Summary of the Invention

[0004] The main objective of this invention is to provide a testing device for slurry conveying pipes, which aims to solve existing technical problems.

[0005] To achieve the above objectives, the present invention provides an in-slurry conveying pipe testing device, comprising a fluid supply module and a visualization test pipeline module connected in sequence to form a circulation path. The fluid supply module is used to supply fluid into the circulation path, and the visualization test pipeline module is used to provide different test pipelines. It also includes a detection ball module, including a ball launching chamber, which contains a detection ball. The detection ball is launched into the circulation path to detect the slurry water delivery pipe.

[0006] Furthermore, the visual test pipeline module includes a first pipe, a second pipe, and a third pipe connected in sequence. The first pipe is an inclined pipe section, the second pipe is a bent pipe section, and the third pipe is a horizontal pipe section. Multiple leak points are preset in the first pipe, the second pipe, and the third pipe.

[0007] Furthermore, a stainless steel conical nozzle is installed at each leak point, and a hydrophone is installed at each leak point.

[0008] Furthermore, the detection ball includes a pressure-resistant housing, and a pressure sensor is evenly distributed inside the pressure-resistant housing, located at the front end, rear end, left side and right side of the pressure-resistant housing respectively.

[0009] Furthermore, a sound sensor is also provided inside the pressure-resistant housing.

[0010] Furthermore, the ball-serving chamber includes a first port communicating with the outside and a second port communicating with the circulation passage, and both the first port and the second port are equipped with gate valves.

[0011] Furthermore, the ball-serving chamber is connected to a pressure relief pipe and a balance pipe. The pressure relief pipe is connected to the outside, and the two ends of the balance pipe are connected to the ball-serving chamber and the circulation pipeline, respectively. Both the pressure relief pipe and the balance pipe are equipped with ball valves.

[0012] Furthermore, the fluid supply module includes a water tank, a regulating valve, a centrifugal pump, and a mass flow meter. The inlet of the centrifugal pump is connected to the outlet of the water tank via a pipe, and the outlet is connected to one end of the mass flow meter via a pipe. The other end of the mass flow meter is connected to the visualization test pipeline module.

[0013] Furthermore, the fluid supply module also includes a bit tube and a differential pressure transmitter for measuring the fluid velocity in the pipeline.

[0014] Furthermore, it also includes an ultrasonic sensor, located at the bottom of the visualization test pipeline module, for monitoring the thickness of the slurry deposit inside the pipeline.

[0015] The beneficial effects of this invention are reflected in: This invention involves placing a detection ball into a pipeline, allowing it to pass through pipelines with varying degrees of curvature, and acquiring various test data within the pipeline. This provides a comprehensive basis for assessing the pipeline's operational status, verifies the detection function of the detection ball, and provides reliable data for subsequent actual testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the slurry conveying pipe testing device of the present invention; Figure 2 This is a schematic diagram of the structure of the visual test pipeline module of the present invention; Figure 3 This is a schematic diagram of the detection ball module structure of the present invention; Figure 4 This is a schematic diagram of the detection ball structure of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Fluid supply module; 11. Water tank; 12. Regulating valve; 13. Centrifugal pump; 14. Mass flow meter; 15. Pitot tube; 16. Differential pressure transmitter; 2. Visualized test pipeline module; 21. First pipe; 22. Second pipe; 23. Third pipe; 24. Conical nozzle; 25. Hydrophone; 3. Detection ball module; 31. Ball launching chamber; 311. First port; 312. Second port; 32. Detection ball; 33. Pressure sensor; 34. Sound sensor; 35. Gate valve; 36. Pressure relief pipe; 37. Balance pipe; 38. Ball valve. Detailed Implementation

[0018] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-4 The present invention provides a slurry conveying pipe testing device, comprising a fluid supply module 1 and a visualization test pipe module 2 connected in sequence to form a circulation path. The fluid supply module 1 is used to deliver fluid into the circulation path, and the visualization test pipe module 2 is used to provide different test pipes. It also includes a detection ball module 3, which includes a ball launching chamber 31 and a detection ball 32 inside the ball launching chamber 31. The slurry water delivery pipe is detected by launching the detection ball 32 into the circulation channel.

[0020] This test device simulates a real-world operating environment by placing the test ball 32 into the pipeline and introducing water into the circulation pipeline through the fluid supply module 1. The test ball 32 then passes through the pipeline with various bends within the visualization test pipeline module 2, acquiring various test data within the pipeline. This provides a comprehensive basis for evaluating the pipeline's operating status, verifies the test ball's detection function, and provides reliable data for subsequent actual testing.

[0021] In one embodiment, the visual test pipeline module 2 includes a first pipe 21, a second pipe 22, and a third pipe 23 connected in sequence. The first pipe 21 is an inclined pipe section, the second pipe 22 is a curved pipe section, and the third pipe 23 is a horizontal pipe section. Multiple leak points are pre-set within the first pipe 21, the second pipe 22, and the third pipe 23. These leak points are specifically designed for testing and can be plugged as needed. All pipe joints are smoothly transitioned to reduce fluid turbulence and the risk of jamming when the detection ball 32 passes through.

[0022] Specifically, the first tube 21, the second tube 22, and the third tube 23 are made of acrylic plexiglass tubes.

[0023] In one embodiment, a stainless steel conical nozzle 24 is installed at the leak point, and a hydrophone 25 is installed at each leak point. The conical nozzle 24 is used to simulate the flow pattern of an actual leak, and the hydrophone 25 is used to collect high-frequency sound wave signals generated by the leak.

[0024] In one embodiment, the detection ball 32 includes a pressure-resistant housing, specifically made of 304 stainless steel. Four pressure sensors 33 are evenly arranged inside the pressure-resistant housing, located at the front end, rear end, left side, and right side of the housing. The four pressure sensors 33 are used to measure the pressure around the detection ball 32 in different directions. Specifically, common liquid pressure sensors can be used for the pressure sensors 33, and those skilled in the art can choose accordingly.

[0025] In one embodiment, a sound sensor 34 is also provided inside the pressure-resistant housing. This sensor is used to collect sound signals from inside the pipeline, particularly sounds related to leaks. Specifically, the sound sensor 34 can be a common model, which can be selected by those skilled in the art.

[0026] In one embodiment, the ball-serving chamber 31 includes a first port 311 communicating with the outside and a second port 312 communicating with the circulation passage. Both the first port 311 and the second port 312 are provided with gate valves 35.

[0027] Specifically, open the gate valve 35 at the first port 311, close the gate valve 35 at the second port 312, put the detection ball 32 into the ball launching chamber 31, close the gate valve 35 at the first port 311, open the gate valve 35 at the second port 312, and the detection ball 32 can be released into the circulation pipeline.

[0028] In one embodiment, the ball-serving chamber 31 is connected to a pressure relief pipe 36 and a balance pipe 37. The pressure relief pipe 36 is connected to the outside, and the two ends of the balance pipe 37 are connected to the ball-serving chamber 31 and the circulation pipeline, respectively. Both the pressure relief pipe 36 and the balance pipe 37 are equipped with ball valves 38.

[0029] Specifically, before placing the test ball 32 into the ball-launching chamber 31, first open the ball valve 38 at the pressure relief pipe 36 to depressurize the ball-launching chamber 31. After placing the test ball 32 into the ball-launching chamber 31 and closing the gate valve 35 at the first port 311, open the ball valve 38 at the balance pipe 37 to balance the pressure in the ball-launching chamber 31 and the circulation pipeline. Finally, open the gate valve 35 at the second port 312 to complete the deployment of the test ball 32.

[0030] In one embodiment, the fluid supply module 1 includes a water tank 11, a regulating valve 12, a centrifugal pump 13 and a mass flow meter 14. The inlet of the centrifugal pump 13 is connected to the outlet of the water tank 11 through a pipe, and the outlet is connected to one end of the mass flow meter 14 through a pipe. The other end of the mass flow meter 14 is connected to the visualization test pipeline module 2.

[0031] Specifically, the water tank 11 has an opening at the top and an outlet at the bottom of the side wall for storing and supplying test water or simulated mineral slurry; the regulating valve 12 is used to precisely regulate the flow rate of the fluid entering the system; the centrifugal pump 13 provides the conveying power for the entire circulation pipeline; and the mass flow meter 14 is used to measure the flow rate of the fluid in the pipeline with high precision.

[0032] In one embodiment, the fluid supply module 1 further includes a bit tube 15 and a differential pressure transmitter 16 for measuring the fluid velocity in the pipeline.

[0033] In one embodiment, it also includes a device located at the bottom of the visualization test pipeline module 2 for monitoring the thickness of slurry deposition within the pipeline.

[0034] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing device for detecting slurry inside a conveying pipe, characterized in that: It includes a fluid supply module (1) and a visual test pipeline module (2) connected in sequence to form a circulation path. The fluid supply module (1) is used to deliver fluid into the circulation path, and the visual test pipeline module (2) is used to provide different test pipelines. It also includes a detection ball module (3), which includes a ball launching chamber (31) and a detection ball (32) is provided in the ball launching chamber (31). The slurry water delivery pipe is detected by launching the detection ball (32) into the circulation channel.

2. The slurry conveying pipe in-test device as described in claim 1, characterized in that: The visualization test pipeline module (2) includes a first pipe (21), a second pipe (22) and a third pipe (23) connected in sequence. The first pipe (21) is an inclined pipe section, the second pipe (22) is a bent pipe section, and the third pipe (23) is a horizontal pipe section. Multiple leak points are preset in the first pipe (21), the second pipe (22) and the third pipe (23).

3. The slurry conveying pipe in-test device as described in claim 2, characterized in that: A conical nozzle (24) is installed at each leak point, and a hydrophone (25) is installed at each leak point.

4. The slurry conveying pipe in-test device as described in claim 1, characterized in that: The detection ball (32) includes a pressure-resistant housing, and four pressure sensors (33) are evenly arranged inside the pressure-resistant housing, located at the front end, rear end, left side and right side of the pressure-resistant housing respectively.

5. The slurry conveying pipe in-test device as described in claim 4, characterized in that: The pressure-resistant housing is also equipped with a sound sensor (34).

6. The slurry conveying pipe in-test device as described in claim 1, characterized in that: The ball-serving chamber (31) includes a first port (311) that communicates with the outside world and a second port (312) that communicates with the circulation passage. Both the first port (311) and the second port (312) are equipped with gate valves (35).

7. The slurry conveying pipe in-test device as described in claim 6, characterized in that: The ball-serving chamber (31) is connected to a pressure relief pipe (36) and a balance pipe (37). The pressure relief pipe (36) is connected to the outside. The two ends of the balance pipe (37) are connected to the ball-serving chamber (31) and the circulation pipeline, respectively. Both the pressure relief pipe (36) and the balance pipe (37) are equipped with ball valves (38).

8. The slurry conveying pipe in-test device as described in claim 1, characterized in that: The fluid supply module (1) includes a water tank (11), a regulating valve (12), a centrifugal pump (13) and a mass flow meter (14). The inlet of the centrifugal pump (13) is connected to the outlet of the water tank (11) through a pipe, and the outlet is connected to one end of the mass flow meter (14) through a pipe. The other end of the mass flow meter (14) is connected to the visualization test pipeline module (2).

9. The slurry conveying pipe in-test device as described in claim 8, characterized in that: The fluid supply module (1) also includes a Pitot tube (15) for measuring the fluid velocity in the pipe.

10. The slurry conveying pipe in-test device as described in claim 1, characterized in that: It also includes an ultrasonic sensor, located at the bottom of the visualization test pipeline module (2), for monitoring the thickness of the slurry deposition inside the pipeline.

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