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CN-224231083-U - Noise reduction detection device of silencer

CN224231083UCN 224231083 UCN224231083 UCN 224231083UCN-224231083-U

Abstract

The utility model discloses a noise reduction detection device of a silencer, which belongs to the technical field of silencer detection and comprises an array detection assembly, wherein the array detection assembly comprises a plurality of foldable frame bodies, a detection unit and a bendable connection unit, the detection unit comprises a first sound sensor for detecting low-range noise and a second sound sensor for detecting high-range noise, the measuring ranges of the first sound sensor and the second sound sensor are partially overlapped, the first sound sensor and the second sound sensor are respectively connected with the top of the foldable frame bodies, the plurality of foldable frame bodies are connected end to end through the connection unit, and the plurality of foldable frame bodies can be arranged to form an annular array for enclosing the silencer to be detected. According to the utility model, the sound sensors can be arranged in all directions of the silencer to be detected, the noise of the silencer to be detected in different directions can be accurately detected, and the detection requirement of the full range can be met.

Inventors

  • HU CHENG
  • MA XIANBO

Assignees

  • 武汉旌胜科技有限公司

Dates

Publication Date
20260512
Application Date
20250722

Claims (9)

  1. 1. The noise reduction detection device of the silencer is characterized by comprising an array detection assembly, wherein the array detection assembly comprises a plurality of foldable frame bodies, a detection unit and a bendable connection unit, the detection unit comprises a first sound sensor for detecting low-range noise and a second sound sensor for detecting high-range noise, the measuring ranges of the first sound sensor and the second sound sensor are partially overlapped, the first sound sensor and the second sound sensor are respectively connected with the top of the foldable frame bodies, the foldable frame bodies are connected end to end through the connection unit, and the foldable frame bodies can be arranged to form an annular array for enclosing the silencer to be detected.
  2. 2. The noise reduction detection device of the silencer according to claim 1, wherein the range of the first sound sensor is 10 db-50 db.
  3. 3. The noise reduction detection device of a muffler according to claim 1 or 2, wherein the range of the second sound sensor is 40db to 150db.
  4. 4. The noise reduction detecting device of a muffler according to claim 1, wherein the connecting unit comprises a plurality of links hinged to each other, and the links at both ends are detachably connected to the adjacent two folding frames respectively through brackets.
  5. 5. The noise reduction detection device of a muffler according to claim 1, wherein the connection unit comprises a plurality of connection plates hinged to each other, the connection plates are rotatably connected by pins, and the connection plates at two ends are detachably connected to two adjacent folding frame bodies by brackets, respectively.
  6. 6. The noise reduction detection device of a silencer according to claim 1, wherein the folding frame body comprises three supporting frames and a plurality of scissor type folding frames, the three supporting frames are vertically arranged and are arranged at intervals, the three supporting frames are connected through the scissor type folding frames, and the distance between the three supporting frames can be synchronously adjusted to realize the unfolding or folding of the connecting frame body.
  7. 7. The noise reduction detection device of the silencer according to claim 6, wherein the tops of the two supporting frames on the two sides are respectively connected with the first sound sensor and the second sound sensor, and universal wheels are arranged at the bottoms of the two supporting frames on the two sides.
  8. 8. The noise reduction detection device of claim 1, wherein the annular array is a regular polygon.
  9. 9. The noise reduction detection device of a muffler according to claim 1, further comprising a control center for collecting and processing signals, wherein the control center is electrically connected to the plurality of first and second sound sensors through wires, respectively, and the control center is connected to one of the folding frames.

Description

Noise reduction detection device of silencer Technical Field The utility model relates to the technical field of muffler detection, in particular to a noise reduction detection device of a muffler. Background The industrial silencer is suitable for any industry such as various industrial and mining industries, enterprises, units and the like, and can reduce equipment such as various fans, boilers, generators, water pumps, steam turbines, deaerators, expansion vessels, safety valves, pipelines, pipeline flushing pipes, steam equipment, air compressors, gas emission and the like which need silencing and noise reduction. In some special demanding areas, it is necessary to detect noise in all directions of the muffler, ensuring that the noise at different positions of the relative distance from the muffler is smaller than a predetermined value. Meanwhile, the detection range of the silencer is required to be 20dB-150dB. The existing noise detection device can only detect the noise in a single direction, and is difficult to accurately detect the noise in different directions of the silencer. In addition, the common noise sensor is 30-120 dB, the special customized noise sensor with the range of 20-150 db is wide, the ordering period is long, and the price cost is particularly high. Disclosure of utility model In view of the foregoing, it is necessary to provide a noise reduction detection device for a muffler, so as to solve the problems that the conventional detection device can only perform data acquisition in a single direction, cannot meet the overall evaluation requirement of the circumferential noise reduction performance of the muffler, and the wide-range noise sensor is expensive and has a long supply period. The utility model provides a noise reduction detection device of a silencer, which comprises an array detection assembly, wherein the array detection assembly comprises a plurality of foldable frame bodies, a detection unit and a bendable connecting unit, the detection unit comprises a first sound sensor for detecting low-range noise and a second sound sensor for detecting high-range noise, the measuring ranges of the first sound sensor and the second sound sensor are partially overlapped, the first sound sensor and the second sound sensor are respectively connected with the top of the foldable frame bodies, the foldable frame bodies are connected end to end through the connecting unit, and the foldable frame bodies can be arranged to form an annular array for enclosing the silencer to be detected. Further, the range of the first sound sensor is 10 dB-50 dB. Further, the range of the second sound bed sensor is 40 dB-150 dB. Further, the connecting unit comprises a plurality of chain links hinged with each other, and the chain links at two ends are detachably connected with the adjacent two folding frame bodies respectively through the brackets. Further, the connecting unit comprises a plurality of connecting plates hinged with each other, the connecting plates are connected with each other through pins in a rotating mode, and the connecting plates at two ends are detachably connected with two adjacent folding frame bodies through brackets respectively. Further, the folding frame body comprises three support frames and a plurality of scissor type folding frames, wherein the three support frames are vertically arranged and are arranged at intervals, the three support frames are connected through the scissor type folding frames, and the distance between the three support frames can be synchronously adjusted, so that the folding or unfolding of the connecting frame body is realized. Further, the tops of the two supporting frames on the two sides are respectively connected with the first sound sensor and the second sound sensor, and universal wheels are arranged at the bottoms of the two supporting frames on the two sides. Further, the annular array is a regular polygon. Further, the folding frame further comprises a control center for collecting and processing signals, the control center is electrically connected with the plurality of first sound sensors and the second sound sensors through wires respectively, and the control center is connected with one of the folding frame bodies. Compared with the prior art, the utility model has the following beneficial effects: (1) The utility model relates to a noise reduction detection device of a silencer, which is provided with an array detection assembly, wherein the array detection assembly comprises a plurality of folding frame bodies, a detection unit and a bendable connection unit, the detection unit comprises a first sound sensor and a second sound sensor which are used for detecting low-range noise, the second sound sensor is used for detecting high-range noise, and the measuring ranges of the first sound sensor and the second sound sensor are partially overlapped, so that the measuring range set of the first sound sensor and the second sound sensor can