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CN-122006376-A - Noise reduction type disrotatory fog gun

CN122006376ACN 122006376 ACN122006376 ACN 122006376ACN-122006376-A

Abstract

The invention discloses a noise reduction type disrotatory fog gun, and relates to the technical field of environmental protection. The noise reduction type contra-rotating fog gun comprises an air duct, a first sound absorbing cylinder, a contra-rotating air outlet device and a spraying device. The first sound-absorbing cylinder is arranged in the air duct and forms a first sound-absorbing cavity with the air duct, the first sound-absorbing cylinder is densely provided with a plurality of first sound-absorbing holes, the first sound-absorbing holes are communicated with the first sound-absorbing cavity, the counter-rotating air outlet device is arranged in the first sound-absorbing cylinder and the spraying device is arranged at the air outlet end of the air duct, the counter-rotating air outlet device comprises a driving piece, a first impeller, a reverse transmission assembly and a second impeller, the driving piece is connected with the first impeller, the reverse transmission assembly is connected between the first impeller and the second impeller, and the first impeller and the second impeller are coaxially arranged. The noise reduction type rotary fog gun provided by the invention can realize long-distance water fog blowing, meet the operation requirements of different scenes, effectively reduce noise and reduce noise pollution.

Inventors

  • LI WEI
  • LU YAOZHONG
  • WANG WEI

Assignees

  • 长沙中联重科环境产业有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (15)

  1. 1. The utility model provides a noise reduction formula disrotatory fog gun, its characterized in that includes air duct (110), first sound-absorbing cylinder (120), disrotatory air-out device (130) and atomizer (140), first sound-absorbing cylinder (120) set up in air duct (110), and with form first sound-absorbing cavity (150) between air duct (110), first sound-absorbing cylinder (120) densely covered is provided with a plurality of first sound-absorbing holes (121), first sound-absorbing holes (121) with first sound-absorbing cavity (150) intercommunication, disrotatory air-out device (130) install in first sound-absorbing cylinder (120), atomizer (140) install in air-out end (112) of air duct (110); The pair of rotary air outlet devices (130) comprises a driving piece (131), a first impeller (132), a reverse transmission assembly (133) and a second impeller (134), wherein the driving piece (131) is connected with the first impeller (132), the reverse transmission assembly (133) is connected between the first impeller (132) and the second impeller (134), the first impeller (132) and the second impeller (134) are coaxially arranged, and the driving piece (131) is used for driving the first impeller (132) and the second impeller (134) to reversely rotate.
  2. 2. The noise-reducing pair of mist cannons of claim 1, characterized in that the vane patterns of the first impeller (132) and the second impeller (134) are arranged mirror symmetrically; And/or the first impeller (132) and the second impeller (134) have a pitch of 600mm-650mm; And/or the inlet angle of the first impeller (132) is 4 ° -5 ° greater than the inlet angle of the second impeller (134).
  3. 3. The noise reduction type mist sprayer according to claim 1, wherein the reverse transmission assembly (133) comprises a housing (1331), a first rotating shaft (1332), a first bevel gear (1333) sleeved outside the first rotating shaft (1332), a second rotating shaft (1334), a second bevel gear (1335) sleeved outside the second rotating shaft (1334), a third rotating shaft (1336), a third bevel gear (1337) sleeved outside the third rotating shaft (1336), a fourth rotating shaft (1338) and a fourth bevel gear (1339) sleeved outside the fourth rotating shaft (1338), a limiting cavity is arranged in the housing (1331), the first bevel gear (1333), the second bevel gear (1335), the third bevel gear (1337) and the fourth bevel gear (1339) are meshed in a head-tail mode, and are all arranged in the limiting cavity, the first rotating shaft (1332) and the third rotating shaft (1336) are coaxially arranged, the second rotating shaft (1332) and the fourth rotating shaft (1338) are coaxially connected with the first rotating shaft (1332), the fourth rotating shaft (1338) and the fourth rotating shaft (1332), the third rotating shaft (1336) is connected with the second impeller (134).
  4. 4. The noise reduction type anti-fog gun according to claim 1, wherein the anti-fog gun further comprises a driving cover (135), the driving cover (135) comprises a cover cylinder (1351) and a second sound absorbing cylinder (1352), the cover cylinder (1351) is arranged in the second sound absorbing cylinder (1352) and forms a second sound absorbing cavity (1353) with the second sound absorbing cylinder (1352), a plurality of second sound absorbing holes (1355) are densely arranged in the second sound absorbing cylinder (1352), the second sound absorbing holes (1355) are communicated with the second sound absorbing cavity (1353), and the driving piece (131) is arranged in the cover cylinder (1351).
  5. 5. The noise reduction type anti-fog gun according to claim 4, wherein the driving cover (135) further comprises a plurality of parting strips (1354), the parting strips (1354) are arranged at intervals in parallel along the air outlet direction and are all arranged in the second sound absorption cavity (1353) so as to divide the second sound absorption cavity (1353) into a plurality of sub sound absorption cavities.
  6. 6. The noise reduction type anti-fog gun according to claim 1, wherein a first partition plate (151) is arranged in the first sound absorption cavity (150), the first partition plate (151) is arranged in an extending mode along the air outlet direction, a first end of the first partition plate (151) along the air outlet direction is connected with a first end wall of the first sound absorption cavity (150), and a second end of the first partition plate (151) along the air outlet direction is arranged at intervals with a second end wall of the first sound absorption cavity (150).
  7. 7. The noise reduction type anti-fog gun according to claim 6, wherein a second partition plate (152) is further arranged in the first sound absorption cavity (150), the second partition plate (152) extends along the air outlet direction, a first end of the second partition plate (152) along the air outlet direction is connected with the second end wall, and a second end of the second partition plate (152) along the air outlet direction is arranged at intervals with the first end wall.
  8. 8. The noise reduction type anti-fog gun according to claim 7, wherein the distance between the first baffle plate (151) and the second baffle plate (152) is 10mm-20mm; and/or the distance between the first partition plate (151) and the second end wall is 30mm-50mm; and/or the second partition (152) is spaced from the first end wall by a distance of 30mm to 50mm.
  9. 9. The noise reduction type anti-fog gun according to claim 1, wherein a plurality of spacer blocks (156) are arranged in the first sound absorption cavity (150), and the plurality of spacer blocks (156) are arranged at intervals in parallel along the air outlet direction so as to divide the first sound absorption cavity (150) into a plurality of sub sound absorption cavities.
  10. 10. The noise reduction type mist speaker of claim 1, characterized in that a ratio of a sum of areas of the plurality of first sound absorbing holes (121) to a surface area of the first sound absorbing cylinder (120) is 4% to 5%; And/or the aperture of the first sound absorption hole (121) is 1.5mm-2.0mm.
  11. 11. The noise reduction type mist sprayer according to claim 1, wherein the air duct (110) comprises a first end plate (113), a main air section (114), a second end plate (115), an air guide section (116) and a third end plate (117) which are sequentially connected, the first sound absorption cylinder (120) comprises a first sound absorption section (122) and a second sound absorption section (123) which are mutually connected, the first sound absorption cavity (150) comprises a first cavity section (153) and a second cavity section (154), the pair of air outlet devices (130) are arranged in the first sound absorption section (122), the first sound absorption section (122) is arranged in the main air section (114) and is simultaneously connected with the first end plate (113) and the second end plate (115) to form the first cavity section (153), the second sound absorption section (123) is arranged in the air guide section (116) and is simultaneously connected with the second cavity section (153) and the third end plate (154) to form the second sound absorption section (122), and the first sound absorption section (122) is in the shape of a cylinder.
  12. 12. The noise reduction type mist sprayer according to claim 11, wherein the air duct (110) further comprises a fourth end plate (118) and an air inlet section (119), the first sound absorbing cylinder (120) further comprises a third sound absorbing section (124), the first sound absorbing cavity (150) further comprises a third cavity section (155), the fourth end plate (118) is connected with the first end plate (113) through the air inlet section (119), and the third sound absorbing section (124) is arranged in the air inlet section (119) and is connected with the fourth end plate (118) and the first end plate (113) simultaneously to form the third cavity section (155), wherein the third sound absorbing section (124) and the air inlet section (119) are cone-shaped.
  13. 13. The noise reduction type anti-fog gun according to claim 1, further comprising a noise reduction guide cone (160), wherein the noise reduction guide cone (160) is arranged in the air guide cylinder (110) and is located between the pair of air outlet devices (130) and the spraying devices (140), the noise reduction guide cone (160) comprises a noise reduction plate (161) and a third sound absorption cylinder (162), the third sound absorption cylinder (162) extends along the air outlet direction, the noise reduction plate (161) is connected in the third sound absorption cylinder (162), and a plurality of third sound absorption holes (163) are densely distributed in the third sound absorption cylinder (162).
  14. 14. The noise reduction type mist speaker of claim 13, characterized in that a ratio of a sum of areas of the plurality of third sound absorbing holes (163) to a surface area of the third sound absorbing cylinder (162) is 1.5% to 4%; And/or the aperture of the third sound-absorbing hole (163) is 1mm-1.5mm.
  15. 15. The noise reduction type mist sprayer according to claim 13, wherein the noise reduction plates (161) are spirally arranged around the axis of the third sound absorption cylinder (162), or the number of the noise reduction plates (161) is plural, and the noise reduction plates (161) are radially arranged around the axis of the third sound absorption cylinder (162).

Description

Noise reduction type disrotatory fog gun Technical Field The invention relates to the technical field of environmental protection, in particular to a noise reduction type disrotatory fog gun. Background The fog gun is dust fall equipment for reducing air pollution, the spraying device of the fog gun can spray fine water mist, and the fan arranged in the fog gun is utilized to blow the water mist to a far place so as to adsorb dust particles suspended in air, so that the concentration of the particles in the air is reduced, the effects of dust emission inhibition and air purification are achieved, and the fog gun is commonly used for construction sites, transportation ports, mineral exploitation and other operation occasions with larger dust. The existing fog gun makes a dilemma in the water mist blowing distance and noise pollution, namely if the water mist blowing distance is far enough, the fan power needs to be increased, the increase of the fan power inevitably leads to the increase of noise and causes the surrounding noise pollution, and if the noise pollution is reduced, the fan power needs to be reduced, and the reduction of the fan power directly leads to the reduction of the water mist blowing distance. Therefore, the design and manufacture of the noise reduction type rotary fog gun with the advantages of long water fog blowing distance and low noise are particularly important in fog gun production. Disclosure of Invention The invention aims to provide a noise-reduction type counter-rotating fog gun, which can realize long-distance water fog blowing, meet the operation requirements of different scenes, effectively reduce noise and reduce noise pollution. The invention is realized by adopting the following technical scheme. The noise reduction type disrotatory fog gun comprises an air duct, a first sound absorption cylinder, a disrotatory air outlet device and a spraying device, wherein the first sound absorption cylinder is arranged in the air duct and forms a first sound absorption cavity with the air duct, a plurality of first sound absorption holes are densely distributed in the first sound absorption cylinder and are communicated with the first sound absorption cavity, the disrotatory air outlet device is arranged in the first sound absorption cylinder, and the spraying device is arranged at the air outlet end of the air duct; the opposite rotation air outlet device comprises a driving piece, a first impeller, a reverse transmission assembly and a second impeller, wherein the driving piece is connected with the first impeller, the reverse transmission assembly is connected between the first impeller and the second impeller, the first impeller and the second impeller are coaxially arranged, and the driving piece is used for driving the first impeller and the second impeller to reversely rotate. Optionally, the vane patterns of the first impeller and the second impeller are arranged in a mirror symmetry manner; and/or the distance between the first impeller and the second impeller is 600mm-650mm; and/or the inlet angle of the first impeller is 4-5 degrees greater than the inlet angle of the second impeller. Optionally, the reverse transmission assembly includes casing, first pivot, the first bevel gear of cover outside the first pivot, the second bevel gear of cover outside the second pivot is located, the third pivot, the third bevel gear of cover outside the third pivot is located, fourth pivot and the fourth bevel gear of cover outside the fourth pivot are located, be provided with spacing cavity in the casing, first bevel gear, the second bevel gear, third bevel gear and fourth bevel gear end-to-end engagement, and all set up in spacing cavity, first pivot and the coaxial setting of third pivot, the coaxial setting of second pivot and fourth pivot, first pivot, the second pivot, third pivot and fourth pivot all rotate with the casing, first pivot is connected with first impeller, the third pivot is connected with the second impeller. Optionally, the pair of rotary air-out device further comprises a driving cover, the driving cover comprises a cover cylinder and a second sound-absorbing cylinder, the cover cylinder is arranged in the second sound-absorbing cylinder, a second sound-absorbing cavity is formed between the cover cylinder and the second sound-absorbing cylinder, a plurality of second sound-absorbing holes are densely distributed in the second sound-absorbing cylinder, the second sound-absorbing holes are communicated with the second sound-absorbing cavity, and the driving piece is arranged in the cover cylinder. Optionally, the driving cover further includes a plurality of parting strips, and the plurality of parting strips are arranged at intervals in parallel along the air outlet direction and are all arranged in the second sound-absorbing cavity so as to divide the second sound-absorbing cavity into a plurality of sub sound-absorbing cavities. Optionally, a first baffle is arran