A vibration isolation and noise reduction device for a shipborne fan
A fan and noise reduction technology, which is applied to the components of pumping devices for elastic fluids, mechanical equipment, machines/engines, etc., can solve problems such as severe vibration, overheating of fans, and ineffective vibration and noise reduction. Achieve the effect of reducing the transmission of vibration and noise, simple and reliable structure, and solving the problems of vibration isolation and heat dissipation
Active Publication Date: 2019-09-27
HARBIN ENG UNIV
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Problems solved by technology
[0005] The vibration isolation structure of the fan that can be found at present is relatively complicated, and the effect of vibration reduction and noise reduction is not very significant
For example, in the patent CN160373554A, the air inlet and outlet are simply opened on the square sound insulation cover. Since the air inlet and outlet are directly connected to the outside world through the outer wall, the noise reduction effect is not very good, and no cooling holes and fan vibration isolators are installed, which is easy to cause Fan overheating and severe vibration problems
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[0022] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0023] combine Figure 1-6 , the relevant components of the shipborne fan vibration isolation and noise reduction device are: the first concave sound insulation board 1, the second concave sound insulation board 2, the rectangular sound insulation board 3, the fan 4, the spring damping vibration isolator 5, the muffler 6, Deck 7, soundproof door panel 8. The outer surface of the sound insulation cover is made of steel material, the inner surface of the steel material is coated with damping material asphalt, the middle is glass wool, and the innermost layer is glass cloth and steel mesh. The inner surface of the sound insulation enclosure is wavy. The first concave sound insulation board 1 and the second concave sound insulation board 2 are respectively connected to the rectangular sound insulation board 3 by welding, and the sound insulation door panel and the s...
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The invention aims at providing a carrier-borne fan vibration isolation and noise reduction device. The carrier-borne fan vibration isolation and noise reduction device comprises a first U-shaped sound-proof board, a second U-shaped sound-proof board, rectangular sound-proof boards, sound-proof door boards and a fan; the second U-shaped sound-proof board with an upward opening is arranged on a deck; the first U-shaped sound-proof board with a downward opening is buckled on the second U-shaped sound-proof board; the first U-shaped sound-proof board and the second U-shaped sound-proof board arearranged in a staggered manner; the rectangular sound-proof boards are fixed at the rears of the first U-shaped sound-proof board and the second U-shaped sound-proof board; the sound-proof door boardsare arranged at the fronts of the first U-shaped sound-proof board and the second U-shaped sound-proof board; the first U-shaped sound-proof board, the second U-shaped sound-proof board, the rectangular sound-proof boards and the sound-proof door boards form a sound-proof cover; a deck air vent is formed in the deck; the exterior of the sound-proof cover, a first air channel, the interior of thesound-proof cover, a second air channel and the deck air vent communicate; and the fan is located in the sound-proof cover and is arranged on a fan base. The vibration noise transmission of a carrier-borne fan is reduced, and the vibration isolation and heat dissipation problems of the fan are effectively solved.
Description
technical field [0001] The invention relates to a vibration isolation and noise reduction device for ship equipment, in particular to a shipboard fan ventilation and noise reduction device. Background technique [0002] Marine fans are mainly used for ship ventilation, ventilation, heating, dust removal, and transportation of flammable and explosive gases. They play an important role in the normal operation of ships and the work and life of crew members. [0003] Excessive noise when the marine fan is working will cause the local noise index of the ship to exceed the standard, and even affect the transmission of the pilot's operation password on the two wings of the bridge. Excessive noise will affect the comfort of the crew's work and life. In order to make the vibration and noise of the fan meet the qualified requirements, the fan vibration isolation and noise reduction transformation should be carried out to deal with major problems. [0004] Adding a vibration isolation...
Claims
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IPC IPC(8): F04D29/66
Inventor王志凯郭鹏飞姚熊亮李永宽田悦
OwnerHARBIN ENG UNIV