CN-224231087-U - Pipeline liquid noise detection device

Abstract

The utility model discloses a pipeline liquid noise detection device, which belongs to the technical field of pipeline liquid noise detection, and comprises a silencing detection system and a liquid flow generation system, wherein the silencing detection system comprises a detection pipeline, a connecting unit and a plurality of hydrophones, two ends of an element to be detected are respectively connected with the middle part of the detection pipeline in series through the connecting unit, the connecting unit can be bent relatively so as to adapt to the elements to be detected with different sizes, the hydrophones are arranged along the detection pipeline so as to detect noise generated when liquid flows through the elements to be detected, the liquid flow generation system comprises a liquid flow pipeline and a reduction unit, the two reduction units are arranged at two ends of the liquid flow pipeline so as to carry out silencing and noise reduction on flowing external liquid, and interference is eliminated, and two ends of the liquid flow pipeline are respectively communicated with two ends of the detection pipeline to form a closed liquid flow loop. The utility model can detect the noise change when the liquid flow passes through the element to be detected.

Inventors

• JIANG JINKUN
• RAN QIPING

Assignees

• 武汉旌胜科技有限公司

Dates

Publication Date

20260512

Application Date

20250722

Claims (10)

1. 1. A pipeline liquid noise detection apparatus for detecting noise when a liquid flow passes through an element to be detected, comprising: The silencing detection system comprises a detection pipeline, a connecting unit and a plurality of hydrophones, wherein two ends of an element to be detected are respectively connected with the middle part of the detection pipeline in series through the connecting unit; The liquid flow generation system comprises a liquid flow pipeline and an abatement unit, wherein the two abatement units are arranged at two ends of the liquid flow pipeline for silencing and reducing noise of flowing external liquid and eliminating interference, and the two ends of the liquid flow pipeline are respectively communicated with the two ends of the detection pipeline to form a closed liquid flow loop.
2. 2. The device for detecting noise of liquid in a pipeline according to claim 1, wherein the connection unit comprises a plurality of branch pipes, a spherical adapter and a rotary joint, and the spherical adapter and the rotary joint are respectively arranged between the two branch pipes to form a linear connection structure capable of being freely bent and adjusted.
3. 3. A liquid noise detector for a pipeline according to claim 2, wherein said branch pipe is a straight pipe or a bent pipe, said branch pipe at one end is detachably connected to said element to be detected, and said branch pipe at the other end is in communication with said detecting pipeline.
4. 4. The apparatus of claim 1, further comprising a first processing module for collecting and processing noise signals, said first processing module being electrically connected to a plurality of said hydrophones by cables.
5. 5. The apparatus of claim 1, wherein the abatement unit comprises a vibration abatement nipple in communication with the fluid conduit, the vibration abatement nipple being capable of reducing vibration of the fluid flow relative to the conduit, and a water muffler capable of reducing noise of the fluid flow.
6. 6. The pipe liquid noise detection apparatus according to claim 1, wherein the liquid flow generation system further comprises a water tank and a water pump which are sequentially communicated with the liquid flow pipe, and a liquid flow control unit including an electromagnetic flow valve for measuring a flow rate of the liquid flow pipe and an electric throttle valve for changing the flow rate of the liquid flow pipe, the electromagnetic flow valve and the electric throttle valve being respectively communicated with the liquid flow pipe.
7. 7. A pipe liquid noise detection apparatus according to claim 6, wherein said noise reduction detection system further comprises a pressure detection unit including a plurality of pressure gauges for detecting the internal pressure of said liquid flow pipe, a plurality of said pressure gauges being disposed equidistantly along said detection pipe.
8. 8. The apparatus of claim 7, further comprising a second processing module for controlling and monitoring the pressure of the pipeline, the second processing module being electrically connected to a plurality of the pressure gauges and electromagnetic flow valves by cables.
9. 9. The device for detecting noise of a liquid in a pipeline according to claim 1, wherein at least two shut-off valves for opening and closing the pipeline are provided on the liquid flow pipeline.
10. 10. The device for detecting the noise of the liquid in the pipeline according to claim 1, wherein a thermometer for measuring the temperature and a vacuum gauge for measuring the vacuum degree are arranged on the liquid flow pipeline.

Description

Pipeline liquid noise detection device Technical Field The utility model relates to the technical field of pipeline liquid noise detection, in particular to a pipeline liquid noise detection device. Background In vessels traveling on water or underwater, it is necessary to transport a large number of different liquids, including water purification, sewage, fuel oil, lubricating oil, cooling oil, and the like. These fluids may flow through various piping elements such as valves, elbows, reducer pipes, etc. during the delivery process. In the process of flowing various liquids through the components, vibration and noise with different degrees can be generated due to friction between the fluid and the pipe wall, vortex generation, abrupt pressure change and the like. These noises may not only cause resonance damage to the overall structure of the ship, but also cause serious noise pollution, interfering with the normal operation of the ship equipment and the healthy life of the crew. Particularly in special ships with extremely high requirements for silencing, such as submarines, the control of fluid noise is of great importance. There is a lack of specialized equipment in the art that can detect fluid noise for different sizes and types of pipe elements. Conventional noise detection devices often have problems of inability to adapt to different sized devices under test, susceptibility to external flow disturbances during detection, lack of a complete flow circulation system, and inability to simultaneously monitor noise signals and fluid parameters. These problems severely limit the accuracy and reliability of pipeline liquid noise detection. Disclosure of utility model In view of the foregoing, there is a need for a device for detecting liquid noise in a pipeline, which solves the problem of the prior art that there is no specialized equipment capable of detecting liquid noise for pipeline elements of different sizes and types. The utility model provides a pipeline liquid noise detection device, which is used for detecting noise when liquid flows through an element to be detected, and comprises the following components: The silencing detection system comprises a detection pipeline, a connecting unit and a plurality of hydrophones, wherein two ends of an element to be detected are respectively connected with the middle part of the detection pipeline in series through the connecting unit; The liquid flow generation system comprises a liquid flow pipeline and an abatement unit, wherein the two abatement units are arranged at two ends of the liquid flow pipeline for silencing and reducing noise of flowing external liquid and eliminating interference, and the two ends of the liquid flow pipeline are respectively communicated with the two ends of the detection pipeline to form a closed liquid flow loop. Further, the connecting unit comprises a plurality of branch pipes, a spherical adapter and a rotary joint, wherein the spherical adapter and the rotary joint are respectively arranged between the two branch pipes to form a linear connecting structure capable of being freely bent and adjusted, Further, the branch pipe is a straight pipe or a bent pipe, the branch pipe positioned at the tail end of one side is detachably connected with the element to be detected, and the branch pipe positioned at the tail end of the other side is communicated with the detection pipeline. Further, the device also comprises a first processing module for collecting and processing noise signals, and the first processing module is electrically connected with a plurality of hydrophones through cables. Further, the reduction unit comprises a vibration reduction connecting pipe and a water muffler, wherein the vibration reduction connecting pipe is communicated with the liquid flow pipeline, the vibration reduction connecting pipe can reduce vibration of liquid flow relative to the pipeline, and the water muffler can reduce noise of the liquid flow. Further, the liquid flow generating system further comprises a water tank, a water pump and a liquid flow control unit, wherein the water tank, the water pump and the liquid flow control unit are sequentially communicated with the liquid flow pipeline, the liquid flow control unit comprises an electromagnetic flow valve for measuring the flow of the liquid flow pipeline and an electric throttle valve for changing the flow of the liquid flow pipeline, and the electromagnetic flow valve and the electric throttle valve are respectively communicated with the liquid flow pipeline. Further, the silencing detection system further comprises a pressure detection unit, wherein the pressure detection unit comprises a plurality of pressure gauges used for detecting the internal pressure of the liquid flow pipeline, and the pressure gauges are equidistantly arranged along the detection pipeline. Further, the system also comprises a second processing module for controlling and monitoring the pipeline pressure