Composite pipeline noise reduction test platform and test method

Abstract

The invention belongs to the technical field of drainage, and discloses a composite pipeline noise reduction test platform and a test method.The composite pipeline noise reduction test platform comprises a platform body, a test wall body and a circulating system, the platform body is a rectangular wall, the test wall body is arranged in the middle of the platform body and divides the platform body into two parts, one part is used for laying a to-be-tested pipeline, and the other part is used for laying a to-be-tested pipeline; the other part is used for testing the sound decibel of the other side of the test wall main body, and the circulating system is connected with the to-be-tested pipeline and is used for providing water circulation for the to-be-tested pipeline for testing. Basic test adjustment is guaranteed through the test platform, operation regulations and methods are applied, the conditions of the composite pipeline in the actual working condition are effectively matched, concrete and visualization are carried out through the platform system, it is ensured that test target multi-parameter requirements reach the standard and are reflected on the platform system, the reliability and safety of the composite pipeline noise reduction field are guaranteed, and the noise reduction effect of the composite pipeline is improved. Accuracy and scientificity are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of drainage, and in particular relates to a composite pipeline noise reduction test platform and a test method. Background Art

[0002] At present, in the field of drainage, the noise of drainage risers is one of the quality indicators that affect hidden home decoration projects. During the drainage process, when water flows through the vertical pipes, due to the collision and turbulence of water in the pipes, two situations will occur. One is that the pipes will resonate, causing the house building to vibrate and produce a humming sound. The other is that turbulence occurs during the flow process and friction occurs with the inner wall of the pipe, which makes a lot of noise and seriously affects the quality of life. Therefore, noise reduction is one of the indispensable indicators, but at present, there is no reliable method in the pipeline noise reduction industry that can accurately measure the noise of pipeline drainage, or the test method is crude and there is no corresponding specification, resulting in inaccurate data collection and ineffective reflection of the performance indicators of the pipeline. Especially in the field of composite pipes, due to the combination of multiple materials and multiple processes, the test method is more complicated and needs to be tested through multiple tests and multiple methods, which is inefficient and inaccurate, and there is no corresponding professional platform for testing. Traditional methods often detect in the form of sound source divergence. This method cannot effectively replace the noise reduction test under the flow state of water flow, and can only achieve qualitative evaluation, and cannot output quantitative test reports. Summary of the invention

[0003] The object of the present invention is to provide a composite pipeline noise reduction test platform and a test method to solve the above-mentioned technical problems.

[0004] In order to solve the above technical problems, the specific technical solutions of a composite pipeline noise reduction test platform and test method of the present invention are as follows: A composite pipeline noise reduction test platform comprises a platform body, a test wall body and a circulation system. The platform body is a rectangular wall body. The test wall body is arranged in the middle of the platform body. The platform body is divided into two parts, one part is used for laying the pipeline to be tested, and the other part is used for testing the sound decibel on the other side of the test wall body. The circulation system is connected to the pipeline to be tested and is used to provide water circulation for the pipeline to be tested for testing.

[0005] Furthermore, the platform body is constructed entirely of red bricks, with 24 cm walls. The total dimensions of the platform body 1 are: length and width 5.48m*2.5m, and the space height inside the platform body is maintained at 2.5m.

[0006] Furthermore, the platform bodies are all suspended, with a standard spacing of 80 centimeters at the bottom to form a suspended layer.

[0007] Furthermore, the bottom of the platform body is connected to the ground through a supporting column to realize an elevated layer and an inner top wall. The inner wall of the platform body has sound-absorbing and sound-insulating functions. The test body wall is a 12-centimeter wall, which divides the platform body into two parts of equal size, which are 2.5m wide and 2.5m long respectively. Two soundproof doors are separately arranged on one side of the platform body.

[0008] Furthermore, a decibel meter is provided inside the platform body, which is more than 70 centimeters away from the test point or in a compartment; the decibel meter is fixed above a support frame, and the support frame is movable. There are wire holes on the ground of the platform body, and a display panel is provided on the wall of the soundproof door. The display panel can be connected to the decibel meter through the wire hole. The decibel meter has its own sensor inside, and the decibel data can be displayed in real time through the display panel.

[0009] Furthermore, the test wall body is provided with a fixed and adjustable pipe clamp, which is replaceable and movable, with a size of about 130-140 mm, and the size can be adjusted. The top and the ground of the test wall body are respectively provided with soft connecting pipe fittings, which can be installed and replaced immediately. According to different sample tubes, different pipeline arrangements can be made in real time in combination with soft connecting pipe fittings and fixed and adjustable pipe clamps. An air vent is provided at the top of the test wall body.

[0010] Furthermore, the circulation system body is arranged in the soundproof wall, and is connected with the platform body and the test wall body through the return pipe and the water inlet pipe. In the platform body part, the return pipe at the turning part of the suspended layer is set at a distance of centimeters from the bottom surface of the raised layer.

[0011] Furthermore, the main body of the circulation system includes a water tank, a Hertz pressure pump, and a high-precision flow meter. The water tank transports and recycles liquid water through a return pipe and an inlet pipe. The return pipe and the inlet pipe are arranged in a cycle, with water entering the water tank and exiting the water tank; the Hertz pressure pump is connected to the inlet pipe, and the Hertz pressure pump can automatically and manually control the inlet and return water flow; the high-precision flow meter is connected to the inlet pipe, and the current flow data is displayed in real time through the display panel.

[0012] The present invention also discloses a testing method for a composite pipeline noise reduction test platform, comprising the following steps: Step 1: First, prepare the sample tube and cut it to a fixed length according to the pipeline drawing; Step 2: According to the drawing, confirm the fixed adjustable pipe clamps and soft connectors for the pipeline direction; Step 3: Adjust the fixed adjustable pipe clamp to match the size of the pipe, and then fix the pipe. After fixing, connect the pipe port to the main pipe of the circulation system through the connecting pipe. Note that the system pipe and the air vent cannot be moved. Use polyurethane foam to fill the gap between the top surface of the platform body and the ground position; Step 3: Adjust the position of the decibel meter in the separate space inside the platform body, and fix the support frame accordingly. After positioning, fix the decibel meter through the support frame buckle, and confirm that the external display panel displays normally; Step 4: Close the corresponding soundproof door; Step 5: Start the Hertz pressure pump, adjust the Hertz pressure pump to the specified pressure and flow according to the standard specifications, and confirm that the high-precision flow meter displays the normal reading; Step 6: At this time, water flows through the return pipe and the inlet pipe and flows back into the water storage tank. You need to wait for a while until the return water stabilizes, and then read the display panel and the high-precision flow meter respectively; Step 7: Record data, including decibel display, pressure display, flow display, and observe the water flow status.

[0013] The composite pipeline noise reduction test platform and test method of the present invention have the following advantages: 1. The test method is reasonable, reliable, and dedicated to the platform system, which improves the accuracy of the test points 2. Effectively feedback data, achieve quantitative output, and visualize it 3. The platform system is dedicated to the field of composite pipeline noise reduction, with strong pertinence, scientific design and stable system operation. 4. Combination of diverse indicators, multi-parameter standardization, reduction of external interference, and low cost; 5. Solved the lack of noise reduction test in the field of composite pipelines and provided effective test methods and platform systems 6. Simple structure, high safety factor, flexible and convenient test method. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the composite pipeline noise reduction test platform of the present invention; Figure 2 This is a schematic diagram of the structure of the composite pipeline noise reduction test platform of the present invention; Explanation of the reference numerals: 1. Platform body; 11. Connecting pipe; 12. Decibel meter; 13. Support frame; 14. Wire hole; 15. Support column; 16. Soundproof door; 17. Display panel; 2. Test wall body; 21. Air vent; 22. Flexible connecting pipe; 23. Sample tube; 24. Fixed adjustable pipe clamp; 3. Circulation system; 31. Silencing wall; 32. Water storage tank; 33. Hertz pressure pump; 34. High-precision flow meter; 35. Water inlet pipe; 36. Water return pipe. DETAILED DESCRIPTION

[0015] In order to better understand the purpose, structure and function of the present invention, a composite pipeline noise reduction test platform and a test method of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1 Figure 2 As shown, a composite pipeline noise reduction test platform of the present invention includes a platform body 1, a test wall body 2, and a circulation system 3. The platform body 1 is a rectangular wall, and the test wall body 2 is arranged in the middle of the platform body 1. The platform body 1 is divided into two parts, one part is used to lay the pipeline to be tested, and the other part is used to test the sound decibel on the other side of the test wall body 2. The circulation system 3 is connected to the pipeline to be tested and is used to provide water circulation for the pipeline to be tested for testing.

[0017] The platform body 1 is built with all red bricks, with 24 cm walls. The total size of the platform body 1 is: 5.48m*2.5m in length and width. The height of the space inside the platform body 1 is kept at 2.5m. The platform body 1 is suspended to avoid the influence of ground vibration on the test. The bottom is 80 cm apart to form a suspended layer. Specifically, the bottom of the platform body 1 is connected to the ground through a support column 15 to realize the raised layer and the inner top wall. The internal wall of the platform body 1 has sound absorption and sound insulation functions. The test body wall 2 is a 12 cm wall, which is set in the middle of the platform body 1, dividing the platform body 1 into two parts of the same size, which are 2.5m wide and 2.5m long. Two soundproof doors 16 are set on one side of the platform body 1. The soundproof door 16 has a mute effect; it plays the role of simulating the full test environment and ensures the reliability of basic conditions.

[0018] A decibel meter 12 is provided inside the platform body 1, which is more than 70 cm away from the test point (test body wall 2) or in a compartment; it is fixed above a support frame 13, and the support frame 13 is movable and adjusted according to the test method. A wire hole 14 is provided on the ground of the platform body 1, and a display panel 17 is provided on the wall of the soundproof door 16. The display panel 17 can be connected to the decibel meter 12 through the wire hole 14. The decibel meter 12 has its own sensor inside, and the decibel data can be displayed in real time through the display panel 17; this method can achieve the function of collecting data, and obtaining it externally can avoid interference from other factors.

[0019] The main body 2 of the test wall is provided with a fixed and adjustable pipe clamp 24, which is replaceable and movable, with a size of about 130-140mm, and the size can be adjusted. The top and the ground of the main body 2 of the test wall are respectively provided with soft connecting pipe fittings 22, which can be installed and replaced immediately. The specification of the conventional sample pipe is 110mm, and the material is currently mainly PVC and PE; according to different sample pipes, different pipeline arrangements can be carried out in real time in combination with the soft connecting pipe fittings 22 and the fixed and adjustable pipe clamps 24, and locked after meeting the test requirements. The main body 2 of the test wall is provided with an air vent 21 at the top, which eliminates the interference of the air in the pipeline during the test and ensures the single variable property.

[0020] According to the test method, the test adjustment is restricted. The sample tube is close to the wall of the installation surface, leaving 8 cm, the center of the tube is 13.5 mm away from the main body of the test wall, and the installation height of the sample tube is about 1.8 m.

[0021] The circulation system body 3 is set in the soundproof wall 31 to avoid the influence of external noise on the outside world. It is connected with the platform body 1 and the test wall body 2 through the return pipe 36 and the water inlet pipe 35. In the platform body 1 part, the return pipe at the turning part of the suspended layer is set 35 cm away from the bottom surface of the cushion layer to prevent the vibration interference of the main body; The circulation system body 3 includes a water tank 32, a Hertz pressure pump 33, a high-precision flow meter 34, etc. The water tank 32 transports and recycles liquid water through a return pipe 36 and a water inlet pipe 35. The return pipe 36 and the water inlet pipe 35 are arranged in a loop, and the water enters the water tank 32 and exits the water tank 32; the Hertz pressure pump 33 is connected to the water inlet pipe 35, and mainly plays the role of power supply and water pressure control. In addition, the Hertz pressure pump 33 can automatically and manually control the inlet and return water flow; the high-precision flow meter 34 is connected to the water inlet pipe 35, and can display the current flow data in real time through the display panel 17, with high accuracy and fast response; Through the circulation system body 3, the test conditions can be changed, and the basic test conditions can be achieved with high precision and high efficiency, and a complete system is formed with the platform body 1 and the test wall body 2.

[0022] A test method for a composite pipeline noise reduction test of the present invention comprises the following steps: Step 1: First, prepare the sample tube 23 and cut the sample tube to a fixed length according to the pipeline drawing; Step 2: According to the drawing, confirm the fixed adjustable pipe clamp 24 and the soft connection pipe fitting 22 for the pipeline direction; Step 3: Adjust the fixed adjustable pipe clamp 24 to match the size of the pipe, and then fix the pipe. After fixing, connect the pipe port position to the pipe of the circulation system main body 3 through the connecting pipe 11. Note that the system pipe and the air vent 21 cannot be moved. Use polyurethane foam to fill the gap between the top surface of the platform main body 1 and the ground position; Step 3: Adjust the position of the decibel meter 12 in the separate space inside the platform body 1, and fix the support frame 13 accordingly. After positioning, fix the decibel meter 12 through the support frame 13 buckle, and confirm that the external display panel 17 displays normally; Step 4: Close the corresponding soundproof door 16; Step 5: Start the Hertz pressure pump 33, adjust the Hertz pressure pump 33 to the specified pressure and flow according to the standard specification, and confirm that the high-precision flow meter 34 displays the reading normally; Step 6: At this time, water flows through the return pipe 36 and the inlet pipe 35 and flows back into the water storage tank 32. It is necessary to wait for a period of time (generally about 1 minute) until the return water stabilizes, and then read the display panel 17 and the high-precision flow meter 34 respectively; Step 7: Record data, including decibel display, pressure display, flow display, and observe the water flow status.

[0023] Technical features of this test platform: 1. The test drop height is guaranteed to be 5.8~7.5m; 2. The background noise of the test environment shall not exceed ≤25dB; 3. Drainage flow, pressure and water flow are dynamically adjustable and controllable (0.5L / s, 1L / s, 2L / s and 4L / s); 4. The drainage time is controllable and the water is recycled; 5. Diversified pipeline tests, low cost and high efficiency; 6. High precision, accurate data, obvious contrast and few interference factors.

[0024] The present invention ensures basic test adjustment through the test platform, and uses operating procedures and methods to effectively match the situation of the composite pipeline in actual working conditions. It is visualized and visualized through the platform system to ensure that the multi-parameter requirements of the test target meet the standards and are reflected on the platform system, thereby ensuring the reliability, safety, accuracy and scientificity in the field of composite pipeline noise reduction.

[0025] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A composite pipeline noise reduction test platform, characterized in that: The invention comprises a platform body (1), a test wall body (2), and a circulation system (3), wherein the platform body (1) is a rectangular wall, the test wall body (2) is arranged in the middle of the platform body (1), and the platform body (1) is divided into two parts, one part is used for laying the pipeline to be tested, and the other part is used for testing the sound decibel on the other side of the test wall body (2), and the circulation system (3) is connected to the pipeline to be tested and is used to provide water circulation for the pipeline to be tested for testing.

2. The composite pipeline noise reduction test platform according to claim 1 is characterized in that: The platform body (1) is constructed entirely of red bricks, with 24 cm walls. The overall dimensions of the platform body (1) 1 are: length and width 5.48 m*2.5 m. The space height inside the platform body (1) 1 is maintained at 2.5 m.

3. The composite pipeline noise reduction test platform according to claim 1 is characterized in that: The platform bodies (1) are all suspended in the air, with a standard spacing of 80 centimeters at the bottom to form a suspended layer.

4. The composite pipeline noise reduction test platform according to claim 1 is characterized in that: The bottom of the platform body (1) is connected to the ground via a support column (15) to realize a raised layer and an inner top wall. The inner wall of the platform body (1) has a sound-absorbing and sound-insulating function. The test body wall is a 12-centimeter wall, which divides the platform body (1) into two parts of equal size, which are 2.5 meters wide and 2.5 meters long respectively. Two soundproof doors (16) are separately arranged on one side of the platform body (1).

5. The composite pipeline noise reduction test platform according to claim 4, characterized in that: A decibel meter (12) is provided inside the platform body (1) and is located more than 70 centimeters away from the test point or in a compartment; the decibel meter (12) is fixedly mounted above a support frame (13); the support frame (13) is movable; a wire hole (14) is provided on the ground of the platform body (1); a display panel (17) is provided on the wall of the soundproof door (16); the display panel (17) can be connected to the decibel meter (12) through the wire hole (14); the decibel meter (12) has a built-in sensor inside and can display decibel data in real time through the display panel (17).

6. The composite pipeline noise reduction test platform according to claim 1 is characterized in that: The test wall body (2) is provided with a fixed and adjustable pipe clamp (24), which is replaceable and movable, and has a size of about 130-140 mm, and the size can be adjusted. The top and the ground of the test wall body (2) are respectively provided with soft connecting pipe fittings (22), which can be installed and replaced immediately. According to different sample tubes, different pipeline arrangements can be carried out in real time in combination with the soft connecting pipe fittings (22) and the fixed and adjustable pipe clamps (24). The top of the test wall body (2) is provided with an air vent (21).

7. The composite pipeline noise reduction test platform according to claim 1 is characterized in that: The main body of the circulation system (3) is arranged in the soundproof wall (31), and is connected to the platform main body (1) and the test wall main body (2) through a return pipe (36) and a water inlet pipe (35). In the platform main body (1), the return pipe (36) is arranged at a turning position at the suspended layer at a distance of centimeters from the bottom surface of the cushion layer.

8. The composite pipeline noise reduction test platform according to claim 7 is characterized in that: The main body of the circulation system (3) comprises a water storage tank (32), a Hertz pressure pump (33), and a high-precision flow meter. The water storage tank (32) transports and recycles liquid water through a return water pipe (36) and a water inlet pipe (35). The return water pipe (36) and the water inlet pipe (35) are arranged in a circular manner, and water flows into the water storage tank (32) and flows out of the water storage tank (32). The Hertz pressure pump (33) is connected to the water inlet pipe (35), and the Hertz pressure pump (33) can automatically and manually control the flow of water inlet and return water. The high-precision flow meter is connected to the water inlet pipe (35), and displays the current flow data in real time through the display panel (17).

9. A method for testing a composite pipeline noise reduction test platform according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: First, prepare a sample tube (23) and cut the sample tube to a fixed length according to the pipeline drawing; Step 2: According to the drawing, confirm the fixed adjustable pipe clamp (24) and the flexible connector for the pipeline direction; Step 3: Adjust the fixed adjustable pipe clamp (24) to match the size of the pipe, and then fix the pipe. After fixing, connect the pipe port position to the main pipe of the circulation system (3) through the connecting pipe (11). Note that the system pipe and the air vent (21) cannot be moved. Use polyurethane foam to fill the gap between the top surface and the ground of the platform body (1); Step 4: Close the corresponding soundproof door (16); Step 5: Start the Hertz pressure pump (33), adjust the Hertz pressure pump (33) to a specified pressure and flow rate according to standard specifications, and confirm that the high-precision flow meter displays normal readings; Step 6: At this time, water flows through the return pipe (36) and the inlet pipe (35) and flows back into the water storage tank (32). It is necessary to wait for a period of time until the return water stabilizes, and then read the display panel (17) and the high-precision flow meter respectively; Step 7: Record data, including decibel display, pressure display, flow display, and observe the water flow status.

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