The double-curve cooling column silencer
The utility model relates to environment protection energy-saving equipment, specifically refers to the novel circulation low resistance and high efficiency silencer that a kind of industrial power plant large cooling column is used, and relates in particular to two silencers by the line cooling tower.
Cooling tower trickle noise silencing apparatus is a kind ofly promptly to allow air communication to cross and can make noise that the device of decay is arranged to a certain degree, and promptly silencer is a kind of airflow line that sound absorption liner or special structure form can effectively reduce noise that has.Dissipative muffler is generally speaking apparent in view to the noise reduction of medium-high frequency, reasonable in designly can obtain desirable noise reduction.The size of sound deadening capacity depends mainly on sectional dimension, length and the selected sound-absorbing material of silencer.
Present dissipative muffler is because design and the structural unreasonable following defective that has: 1, can not be up to standard, and noise reduction is relatively poor; 2, influence equipment and normally ventilate, cause equipment normally to move; 3, floor space is excessive, and cost is too high.
Present technique utilization acoustics and aerodynamic principle, employing is provided with the noise reduction measure of large-scale ventilation silencing apparatus around the cooling tower air inlet, make that factory circle and sensitive spot (comprising high residential building) all can obtain good noise reduction around the cooling tower, the aerodynamic structure of at utmost having optimized simultaneously device has reduced windage, has guaranteed the thermal property of cooling tower.
Summary of the invention:
The purpose of this utility model is to provide a kind of efficient low-resistance plug than silencer, long service life, safe and reliable cooling tower silencer.
The utility model for achieving the above object, the technical scheme that is adopted is a kind of double-curve cooling column silencer.
The double-curve cooling column silencer is made up of shell and anechoic sheet, anechoic sheet is made up of perforated plate, glass cloth damping layer, stainless steel wire screen cloth, sound-absorbing material, thin-wall channel frame, it is characterized in that silencer being set at the cooling tower air inlet, the shell of silencer adopts compact steel plate integral body to process, adopt thin-wall channel to do reinforcement in the anechoic sheet by " well " font structural configuration thin-wall channel frame, fill heatproof damp-proof blanket of glass wool and do sound-absorbing material, stainless steel outer packed screen cloth, glass cloth damping layer, perforated plate.
Anechoic sheet be shaped as waveform, effectively increase the sound absorption area, do not produce excessive windage again.
Silencer is made up of the juxtaposed anechoic sheet of multi-disc, is arranged in parallel the air channel of the hyperbola of formation.This air channel meets acoustics and aerodynamic principle, does not effectively influence ventilation noise reduction the time.
Description of drawings:
Fig. 1 is the scheme of installation of the utility model double-curve cooling column silencer;
Fig. 2 is that double-curve cooling column silencer stereogram is newly opened in this practicality;
Fig. 3 is that double-curve cooling column silencer anechoic sheet schematic diagram is newly opened in this practicality;
Fig. 4 is the partial enlarged drawing that double-curve cooling column silencer anechoic sheet is newly opened in this practicality.
The specific embodiment
The water impact water surface that falls in the cooling stack produces trickle noise (being the sound that water produces when falling collecting-tank), noise spreads out of by the air inlet of cooling tower 1 bottom, at the cooling tower air inlet silencer 2 is set, the shell 4 of silencer 2 adopts compact steel plate integral body to process, noise passes through in the anechoic sheet 3 in silencer 2, adopt thin-wall channel to do reinforcement in the anechoic sheet 3 by " well " font structural configuration thin-wall channel frame 5; Fill heatproof damp-proof blanket of glass wool and do sound-absorbing material 9, stainless steel outer packed screen cloth 8, glass cloth damping layer 7, perforated plate 6; Anechoic sheet 3 is designed to undaform labyrinth type acoustical passage, increase the sound absorption area, again because passage is a undaform shape, noise can directly not spread out of by passage, when noise is propagated in passage, thus with anechoic sheet in sound-absorbing material 9 take place that friction is converted to heat energy to greatest extent, kinetic energy is absorbed, and improves acoustical absorptivity greatly, sound deadening capacity 〉=35dB (A) reaches environmental requirement.This silencer can be designed to 90 ° of-360 ° of arrangements according to cooling tower air quantity and position needs.Install and adopt flexible design, be convenient to the adjusting and the maintenance of intake under hot conditions.