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CN-224228867-U - Intelligent noise reduction box for Roots blower

CN224228867UCN 224228867 UCN224228867 UCN 224228867UCN-224228867-U

Abstract

The utility model discloses an intelligent noise reduction box body for a Roots blower, which comprises a noise reduction box, wherein a PLC (programmable logic controller) is arranged on the outer wall of the noise reduction box, and loudspeakers are uniformly arranged at the top end inside the noise reduction box. When the noise reduction box is used, the noise sensor can collect noise data generated by the Roots blower arranged in the noise reduction box in real time and send the noise data to the PLC for analysis and processing, the PLC is integrated with a noise reduction strategy algorithm, four speakers symmetrically distributed in the noise reduction box are automatically adjusted to start according to the noise sensor, part of main frequency noise is counteracted by emitting sound waves with opposite phases to the noise through the speaker array, and the air outlet connecting pipe and the air inlet connecting pipe are respectively provided with an impedance composite muffler, so that good noise reduction protection functions can be realized for the air outlet and the air inlet of the device, the device realizes a multi-stage comprehensive noise reduction protection structure, and the noise reduction performance is improved.

Inventors

  • SUN XINXIN

Assignees

  • 山东建宇重工有限公司

Dates

Publication Date
20260512
Application Date
20250630

Claims (8)

  1. 1. The utility model provides an intelligent noise reduction box for roots blower, its characterized in that, including noise reduction box (3), PLC controller (13) are installed to the outer wall of noise reduction box (3), and speaker (10) are evenly installed on the inside top of noise reduction box (3), and first annular heat-conducting piece (11), noise sensor (14) and temperature sensor (9) are installed in proper order to the inside of noise reduction box (3), top cap (8) are installed to the top card of noise reduction box (3), and the intermediate position department of top cap (8) is fixed with semiconductor refrigeration piece (6), and the top of semiconductor refrigeration piece (6) is provided with heating surface (19), and the top of heating surface (19) evenly is fixed with first copper alloy radiating fin (7), and the bottom of semiconductor refrigeration piece (6) is provided with refrigerating surface (18) that extends to the inside noise reduction box (3), and the bottom of refrigerating surface (18) is fixed with second annular heat-conducting piece (17) with first annular heat-conducting piece (11) assorted, and the outside wall of second annular heat-conducting piece (17) all is provided with second copper alloy radiating fin (12), air inlet connection pipe (1) and two air inlet connection pipe (5) are installed respectively, both ends of the air outlet connecting pipe (1) and the air inlet connecting pipe (5) are respectively provided with an impedance composite muffler (15) and a flange plate (16).
  2. 2. The intelligent noise reduction box body for the Roots blower, which is disclosed in claim 1, is characterized in that rubber buffer support legs (4) are uniformly arranged on two sides of the bottom of the noise reduction box (3).
  3. 3. The intelligent noise reduction box body for the Roots blower, as set forth in claim 1, is characterized in that the outer side wall of the noise reduction box (3) is provided with a high-density glass fiber cotton layer.
  4. 4. The intelligent noise reduction box body for the Roots blower according to claim 1, wherein 4 speakers (10) are arranged, and four directions of the speakers (10) inside the noise reduction box body (3) are symmetrically distributed.
  5. 5. The intelligent noise reduction box body for the Roots blower, which is disclosed in claim 1, is characterized in that locking pieces (2) are uniformly arranged at the bottoms of two sides of the top cover (8), and screws are arranged between the locking pieces (2) and the noise reduction box (3).
  6. 6. The intelligent noise reduction box body for the Roots blower according to claim 1, wherein the bottom of the top cover (8) is provided with a clamping groove (24) matched with the noise reduction box (3), and two ends of the top cover (8) are respectively provided with reserved through holes (20) matched with the air outlet connecting pipe (1) and the air inlet connecting pipe (5).
  7. 7. The intelligent noise reduction box body for the Roots blower according to claim 6, wherein the clamping groove (24) and the inner side wall of the reserved through hole (20) are both fixedly provided with a sealing air bag layer (21).
  8. 8. The intelligent noise reduction box body for the Roots blower according to claim 7, wherein the sealing air bag layer (21) is provided with an air guide connecting pipe (22), and an air valve (23) is arranged on the air guide connecting pipe (22).

Description

Intelligent noise reduction box for Roots blower Technical Field The utility model relates to the technical field of noise reduction treatment of Roots fans, in particular to an intelligent noise reduction box for a Roots fan. Background The Roots blower is widely applied to a plurality of fields such as sewage treatment, pneumatic conveying and the like because of stable flow and simple structure, and the working principle of the Roots blower is that two blade-shaped rotors perform relative motion in a cylinder to compress and convey gas, and serious noise pollution is generated when the Roots blower operates, so that a noise reduction box body is needed. The existing noise reduction box body for the Roots blower is often used for directly covering the Roots blower to separate noise, so that the heat dissipation effect of the blower is poor, the blower is easy to stop due to overheating, and new noise pollution can be generated by additionally installing additional heat dissipation of the blower. Disclosure of utility model The utility model aims to provide an intelligent noise reduction box body for a Roots blower, which is used for solving the problems in the background technology. The intelligent noise reduction box body for the Roots blower comprises a noise reduction box, wherein a PLC (programmable logic controller) is arranged on the outer wall of the noise reduction box, a loudspeaker is uniformly arranged at the top end of the inside of the noise reduction box, a first annular heat conduction piece, a noise sensor and a temperature sensor are sequentially arranged in the noise reduction box, a top cover is clamped at the top of the noise reduction box, a semiconductor refrigerating sheet is fixed at the middle position of the top cover, a heating surface is arranged at the top of the semiconductor refrigerating sheet, a first copper alloy radiating fin is uniformly fixed at the top of the heating surface, a refrigerating surface extending to the inside of the noise reduction box is arranged at the bottom of the semiconductor refrigerating sheet, a second annular heat conduction piece matched with the first annular heat conduction piece is fixed at the bottom of the refrigerating surface, a second copper alloy radiating fin is uniformly arranged on the outer side walls of the second annular heat conduction piece and the first annular heat conduction piece, an air outlet connecting pipe and an air inlet connecting pipe are respectively arranged at two ends of the top cover, and an impedance composite silencer and a flange are respectively arranged at two ends of the air outlet connecting pipe and the air inlet connecting pipe. Preferably, rubber buffer support legs are uniformly arranged on two sides of the bottom of the noise reduction box. Preferably, the outer side wall of the noise reduction box is provided with a high-density glass fiber cotton layer. Preferably, the number of the loudspeakers is 4, and the four directions of the loudspeakers in the noise reduction box are symmetrically distributed. Preferably, locking pieces are uniformly arranged at the bottoms of the two sides of the top cover, and screws are arranged between the locking pieces and the noise reduction box. Preferably, the bottom of top cap is provided with and falls case assorted clamping groove, the both ends of top cap are provided with respectively with air-out connecting pipe, air inlet connecting pipe assorted reservation opening. Preferably, the inner side walls of the clamping groove and the reserved through hole are both fixed with a sealing air bag layer. Preferably, the sealing air bag layer is provided with an air guide connecting pipe, and the air guide connecting pipe is provided with an air valve. Compared with the prior art, the utility model has the beneficial effects that: (1) The intelligent noise reduction box body for the Roots blower optimizes the structure of the device by installing a noise sensor and the like, on one hand, the noise sensor can collect noise data generated by the Roots blower arranged in the noise reduction box in real time and send the noise data to the PLC for analysis and processing, the PLC is integrated with a noise reduction strategy algorithm, four speakers symmetrically distributed in the noise reduction box are started according to the noise sensor, part of main frequency noise is counteracted by emitting sound waves with opposite noise phases through the speaker array, the noise reduction box covers the Roots blower, a high-density glass fiber cotton layer arranged on the outer side wall of the box body is utilized, a good sound insulation effect is realized, and a rubber buffer support leg at the bottom of the noise reduction box is utilized, so that good shock absorption and noise reduction protection can be realized, on the other hand, a user can open an air valve, the air guide connecting pipe is used for enabling the clamping groove on the top cover and the sealing air b