CN206905580U - It is a kind of for the bending-type of cooling tower, step type and ripple type denoising device - Google Patents
It is a kind of for the bending-type of cooling tower, step type and ripple type denoising device Download PDFInfo
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- CN206905580U CN206905580U CN201720408857.6U CN201720408857U CN206905580U CN 206905580 U CN206905580 U CN 206905580U CN 201720408857 U CN201720408857 U CN 201720408857U CN 206905580 U CN206905580 U CN 206905580U
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Abstract
It the utility model is related to a kind of bending-type denoising device for cooling tower, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group includes polylith noise elimination flow deflector, the air inlet of cooling tower bottom has multiple noise elimination flow deflector groups, multiple noise elimination flow deflector groups are installed at the exhaust outlet at the top of cooling tower, all noise elimination flow deflectors in same noise elimination flow deflector group are mutually parallel and are horizontally mounted, the distance between two pieces of noise elimination flow deflectors of arbitrary neighborhood are equal, the noise elimination flow deflector group of air inlet is vertically arranged, noise elimination flow deflector group at air outlet is horizontally mounted, noise elimination flow deflector in same noise elimination flow deflector group is mutually parallel, it is characterized in that：The noise elimination water conservancy diversion plate shape is in bending-type, and the center line of noise elimination flow deflector is bilateral symmetry.The utility model further relates to a kind of stepped denoising device for cooling tower and a kind of ripple type denoising device for cooling tower.
Description
Technical field
The device that a kind of cooling tower buzz is administered is the utility model is related to, particularly a kind of bending-type for cooling tower drops
Make an uproar device, a kind of stepped denoising device for cooling tower and a kind of ripple type denoising device for cooling tower.
Background technology
Mechanical-draft cooling tower is the widely used cold-end equipment of thermal power plant, its noise source strength, is distributed wide, bandwidth.From
Seen in horizontal layout, mechanical-draft cooling tower is typically located near factory circle of power plant, often causes the ring such as factory circle and neighbouring resident
Border sensitivity spot noise is exceeded, is to influence thermal power plant's factory outside noise principal element up to standard.Therefore, it is necessary to this progress noise is prevented
Control.
Air inlet noise radiation and top exhaust outlet of the noise of mechanical-draft cooling tower essentially from cooling tower bottom
Noise radiation.Genesis mechanism, circulation way for noise, cooling tower buzz can be administered and be attributed in tower, two outside tower
Basic Ways.In tower based on sound source Noise Treatment, specifically mainly there are the overboard energy absorption device of addition and high-order receipts water law；Tower is outside then
Include the sound wave barrier (sound insulation) in transaudient approach, wave absorption (containing along journey attenuation by absorption) and range attenuation (acoustic energy diffusion)
Deng three kinds of modes, specific main sound Barrier method and noise elimination flow deflector method, wherein being aided with wave absorption as making an uproar using sound wave barrier
The Main Means that sound is administered.At present, what domestic application was more is tower noise-reduction method, that is, sound barrier method and noise elimination water conservancy diversion outside
Piece.
Chinese patent 200720190473.8 discloses a kind of mechanical-draft cooling tower muffler, it is characterised in that:It
Including wind inlet silencing device, air intake guide device, air draft guiding device and air exhausting soundproofing device, the wind inlet silencing device is set
On the outside of cooling tower air inlet, it is made up of the resistance noise reduction unit and horizontally disposed reactive muffling unit of vertical setting, it is described
Towards air intake direction point, several rows are set resistance noise reduction unit up and down, and the resistance module is arranged on each two adjacent exclusion noise eliminations
Between unit；The air intake guide device is smooth from being gradually tapered up from the wind inlet silencing device to the cooling tower air inlet
Deflector is formed；The air draft guiding device is from light from the air outlet of cooling tower to the air-out muffler device that gradually expanded from
Sliding deflector is formed, and the air exhausting soundproofing device is arranged on above the cooling tower exhaust outlet, by some horizontally arranged impedances
Composite sound damping unit forms.The device needs further to be strengthened to the effect of air exhausting soundproofing, while can not in actual application
Meet demand is still very big to energy requirements.
Current existing noise elimination flow deflector uses board-type mostly.Existing board-type noise elimination flow deflector is generally one piece of square
Shape shape, length, width and height, piece are arranged in parallel with piece, form grid.Obviously, the device pitch of fins is smaller, and piece thickness is bigger, to noise
Buffer action it is better, but can so increase air flow resistance, reduce air quantity, cause cooling tower hydraulic performance decline.At present,
For existing board-type noise elimination flow deflector, in order to obtain preferable noise reduction, a usual pitch of fins all can be smaller, is even less than
Piece is thick.Which not only adds manufacturing cost, also results in flowing resistance increase.In order to reach preferable noise reduction, eliminate the noise
Flow deflector thickness is larger, and spacing is smaller, and thickness and spacing are generally 50-100mm or so.Compared with before installation denoising device,
Noise 20-30dB can be reduced, but simultaneously, than reducing 50% or so before installation, flowing resistance increases cooling tower air inlet draught area
Add more than 50Pa, ventilation reduces more than 20%, and cooling capacity reduces by more than 15%, and outlet water temperature raises 1.5 DEG C or so.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of structure design and close
The stronger bending-type denoising device for cooling tower of reason, more efficient energy-saving, Jing Yin ability, the step type drop for cooling tower
Make an uproar device and the ripple type denoising device for cooling tower.Device is made up of a kind of noise elimination flow deflector of specific pattern.The present apparatus
Technical scheme has both allowed air-flow suitable for a number of noise elimination flow deflector is evenly arranged at cooling tower air inlet and air outlet
Profit allows in tower sound wave reflection loss repeatedly in transmittance process by, and can, forms the grid device of noise reduction rectification.
The technical scheme in the invention for solving the above technical problem is：A kind of bending-type noise reduction for cooling tower fills
Put, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group include polylith noise elimination flow deflector, cool down the air inlet of tower bottom
There are multiple noise elimination flow deflector groups at place, is provided with multiple noise elimination flow deflector groups at the exhaust outlet at the top of cooling tower, same noise elimination is led
All noise elimination flow deflectors in flow group are mutually parallel and are horizontally mounted, between two pieces of noise elimination flow deflectors of arbitrary neighborhood away from
From equal, the noise elimination flow deflector group of air inlet is vertically arranged, the horizontal peace of the noise elimination flow deflector group at air outlet
Fill, the noise elimination flow deflector in same noise elimination flow deflector group is mutually parallel, it is characterised in that：The noise elimination water conservancy diversion plate shape is in folding
Curved, the center line of noise elimination flow deflector is bilateral symmetry；The center line function of noise elimination flow deflector is y-1=cosh
(nA0X), wherein x is vertical between any point and the symmetry axis of noise elimination flow deflector center line on noise elimination flow deflector center line
Distance, y are the vertical range between the tangent line on any point and noise elimination flow deflector center line summit on noise elimination flow deflector center line,
A0Enter pressure during noise elimination flow deflector end points for wind, n is the natural number more than 1；Any point on noise elimination flow deflector center line
Corresponding thickness is L,Wherein ρ is atmospheric density corresponding at the point, and v is to correspond to wind speed, P at the point
To correspond to pressure at the point；The distance between adjacent two pieces of noise elimination flow deflectors are d,Wherein υ0Enter for wind and eliminate the noise
Speed during flow deflector, g are acceleration of gravity, and k is constant；Wherein noise elimination flow deflector is layer structure, noise elimination flow deflector it is upper
Surface and lower surface are guide layer, are sound absorbing layer between the upper and lower surface of noise elimination flow deflector.Y-1=cosh (nA0x)
In, if y unit is m, 1 unit is m in the formula；If y unit is cm, 1 unit is 0.01m in the formula.N's takes
Value customizes according to the actual requirements, more specifically cools down the factors such as task, cooling tower specification and specifically considers.It is of the present utility model to set
It is non-linear that meter, which fully takes into account wind loss rate and the relation of initial air quantity, by devising the energy-saving and noise-reducing under the conditions of this
Noise elimination baffle design that can be more excellent.Noise elimination flow deflector center line symmetry axis is made at any point on noise elimination flow deflector center line
Parallel lines, the parallel lines intersect with the edge of noise elimination flow deflector, and the atmospheric density of point of intersection is on noise elimination flow deflector center line
Atmospheric density corresponding to the point, the wind speed of point of intersection is wind speed, the pressure of point of intersection corresponding to the point on noise elimination flow deflector center line
It is by force pressure corresponding to the point on noise elimination flow deflector center line.K value is appointed with reference also to concrete condition according to specific cooling
The factors such as business, cooling tower specification are specifically considered.Compared with board-type noise elimination flow deflector, bending-type noise elimination flow deflector causes noise to exist
Repeatedly turned back in communication process, improve noise elimination noise reduction ability.Therefore, under the premise of the requirement of equal noise reduction, using bending
During type muffler plate, it can suitably reduce piece thickness, increase a pitch of fins, reduce influence of the bending to flow resistance, effectively improve ventilation, improve
The cooling effect of cooling tower.
The left end and right-hand member of noise elimination flow deflector described in the utility model are arc, and noise elimination flow deflector center line left end is corresponding
Thickness be L1, thickness corresponding to noise elimination flow deflector center line right-hand member is L2, the radius of curvature numerical value of the left end of noise elimination flow deflector isThe radius of curvature numerical value of the right-hand member of noise elimination flow deflector isMiddle use is stood out compared with prior art
Design, the design of arc effectively reduces air stream and offsets the long term wear at acoustic conductance flow edge, while further reduces wind-force
Decrement, while ensure certain noise reduction capability.
Guiding device is installed below exhaust outlet described in the utility model, pond noise elimination is installed below guiding device
Pad.The equipment can further improve cooling effectiveness of the wind inside cooling tower.
Cooling tower bottom described in the utility model shares two air inlets, and two air inlets are respectively advance air port and laggard
Air port, advance air port are provided with the noise elimination flow deflector group of multiple vertical direction arrangements, and rear air inlet is provided with multiple vertical directions
The noise elimination flow deflector group of arrangement.
The damping of polylith horizontal direction installation is provided between the adjacent noise elimination flow deflector group of the utility model air inlet
Plate, one end of vibration damper plate are fixed on cooling tower, and vibration damper plate is shaped as rectangular slab, between neighbouring two pieces of noise elimination flow deflectors
It is connected by vibration damper plate, space is present between adjacent vibration damper plate in horizontal direction.On the one hand vibration damper plate ensures regular shape
The physical support of not strong noise elimination flow deflector, while the space between vibration damper plate avoids the decrease for no reason of wind-force, ensure that cold
But the basic cooling effectiveness of tower.
A kind of stepped denoising device for cooling tower, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group
Comprising polylith noise elimination flow deflector, cooling down the air inlet of tower bottom has multiple noise elimination flow deflector groups, the exhaust outlet at the top of cooling tower
Place is provided with multiple noise elimination flow deflector groups, and all noise elimination flow deflectors in same noise elimination flow deflector group are mutually parallel and horizontal
The distance between installation, two pieces of noise elimination flow deflectors of arbitrary neighborhood are equal, the vertical side in noise elimination flow deflector group edge of air inlet
To arrangement, the noise elimination flow deflector group at air outlet is horizontally mounted, and the noise elimination flow deflector in same noise elimination flow deflector group is mutually
It is parallel, it is characterised in that：The center line of the noise elimination flow deflector is symmetrical, noise elimination flow deflector include noise elimination flow deflector left part and
Noise elimination flow deflector right part, noise elimination flow deflector left part and noise elimination flow deflector right part form by noise elimination baffle, and noise elimination flow deflector is left
The noise elimination water conservancy diversion number of blocks that the noise elimination water conservancy diversion number of blocks that portion includes and noise elimination flow deflector right part include is identical, all noise elimination baffles
It is cube；In horizontal direction, the noise elimination baffle of composition noise elimination flow deflector left part is arranged in order from left to right, and composition is eliminated the noise
The noise elimination baffle of flow deflector left part from left to right forward permutations successively；In horizontal direction, composition noise elimination flow deflector right part disappears
Sound baffle is arranged in order from left to right, and the noise elimination baffle of composition noise elimination flow deflector left part from left to right arranges backward successively.
By all noise elimination baffle alignments, when the quantity of noise elimination baffle is sufficiently large, then its outline and the folding for cooling tower
The outline of curved denoising device is identical.Using the stepped denoising device for cooling tower, it can further increase flexible peace
The characteristic of dress, on the other hand, adjacent noise elimination baffle can form certain reflector space, have compared to bending-type more firm
The reflector space leaned on, similar to sunken luminous effect.Simultaneously because it is similar to bending-type shape, strongly reducing for air quantity is avoided, is protected
The cooling capacity of cooling tower foundation has been demonstrate,proved, while has enhanced the effect of noise-reduction energy-saving.Compared to bending-type there is higher noise reduction to imitate
Fruit.
A kind of ripple type denoising device for cooling tower, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group
Comprising polylith noise elimination flow deflector, cooling down the air inlet of tower bottom has multiple noise elimination flow deflector groups, the exhaust outlet at the top of cooling tower
Place is provided with multiple noise elimination flow deflector groups, and all noise elimination flow deflectors in same noise elimination flow deflector group are mutually parallel and horizontal
The distance between installation, two pieces of noise elimination flow deflectors of arbitrary neighborhood are equal, the vertical side in noise elimination flow deflector group edge of air inlet
To arrangement, the noise elimination flow deflector group at air outlet is horizontally mounted, and the noise elimination flow deflector in same noise elimination flow deflector group is mutually
It is parallel, it is characterised in that：The centre line shape of the noise elimination flow deflector is sinusoidal waveform, the centre line shape of noise elimination flow deflector
Wave function isWherein α be wave function amplitude, A0Enter pressure during noise elimination flow deflector end points, n for wind
For the natural number more than 1, the horizontal width of noise elimination flow deflector is 2X0,-X0≤x≤X0, it is any on the center line of noise elimination flow deflector
Noise elimination flow deflector thickness corresponding to a little is L, L=mA0ln2X, wherein m are constant, x be noise elimination flow deflector center line center with
Vertical range on noise elimination flow deflector center line between any point.α and n value is according to specific cooling task, cooling tower
The factors such as specification are specifically considered.2X0Specific value according to cooling tower specification select.The design mainly considers the reality of cooling tower
Relation between border cooling capacity and energy consumption, avoid invalid waste.
Compared with prior art, the utility model proposes the thickness of noise elimination flow deflector be thinned as 30-50mm, spacing increase
For 100-150mm, draught area increase by more than 30%, flowing resistance is reduced to 30Pa or so, and ventilation increase by more than 10% is cold
But ability improves 5-10%, and outlet water temperature reduces 0.5-1 DEG C.In summary, the utility model proposes three kinds of Novel silencings lead
Flow can be effectively increased the order of reflection of sound wave in a device as the denoising device of mechanical-draft cooling tower, and noise is carried out
Repeatedly absorb, improve noise reduction efficacy, and a noise elimination flow deflector pitch of fins can be increased, reduce piece thickness, effectively reduce flowing resistance, improve logical
Air quantity, and then the cooling capacity of cooling tower is improved, reach the purpose of energy-saving and noise-reducing.
Brief description of the drawings
Fig. 1 is the bending-type noise elimination flow deflector center line overlooking the structure diagram of the utility model embodiment 1.
Fig. 2 is the stepped noise elimination flow deflector center line overlooking the structure diagram of the utility model embodiment 2.
Fig. 3 is the ripple type noise elimination flow deflector center line overlooking the structure diagram of the utility model embodiment 3.
Fig. 4 is the utility model contrast groups and embodiment 1-3 cooling tower main structure diagrams.
Fig. 5 is the utility model contrast groups and embodiment 1-3 cooling tower left view structural representations.
Fig. 6 is the utility model contrast groups and embodiment 1-3 cooling tower overlooking the structure diagrams.
Fig. 7 is the utility model contrast groups main structure diagram.
Fig. 8 is the utility model contrast groups overlooking the structure diagram.
Fig. 9 is the utility model contrast groups left view structural representation.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Contrast groups.
Referring to Fig. 4 to Fig. 9.
Denoising device uses multiple noise elimination flow deflector groups 1, and each noise elimination flow deflector group 1 includes polylith noise elimination flow deflector 11,
The air inlet of cooling tower bottom has multiple noise elimination flow deflector groups 1.Cooling tower bottom shares two air inlets, two air inlets point
Not Wei advance air port and rear air inlet, advance air port is provided with the noise elimination flow deflector group 1 of multiple vertical directions arrangement, rear air inlet
The noise elimination flow deflector group 1 of multiple vertical direction arrangements is installed.
Multiple noise elimination flow deflector groups 1 are installed, the institute in same noise elimination flow deflector group 1 at the exhaust outlet at the top of cooling tower
There is noise elimination flow deflector 11 mutually parallel and be horizontally mounted, the distance between two pieces of noise elimination flow deflectors 11 of arbitrary neighborhood are homogeneous
Deng the noise elimination flow deflector group 1 of air inlet is vertically arranged, and the noise elimination flow deflector group 1 at air outlet is horizontally mounted, together
Noise elimination flow deflector 11 in one noise elimination flow deflector group 1 is mutually parallel.
Guiding device 2 is installed below exhaust outlet, pond silencer pad 3 is installed below guiding device.The four of cooling tower
Zhou Junwei sound-proof walls 4.The both sides of cooling tower are mounted on stair 5.The top of stair 5 is other to be provided with maintenance door 6.
Noise elimination flow deflector 11 is board-type noise elimination flow deflector in contrast groups.Board-type noise elimination flow deflector is generally one piece of rectangle
Shape, length, width and height, piece are arranged in parallel with piece, form grid.Obviously, the device pitch of fins is smaller, and piece thickness is bigger, to noise
Buffer action is better, but can so increase air flow resistance, reduces air quantity, causes cooling tower hydraulic performance decline.At present, it is right
In existing board-type noise elimination flow deflector, in order to obtain preferable noise reduction, a usual pitch of fins all can be smaller, even less than piece
It is thick.Which not only adds manufacturing cost, also results in flowing resistance increase.In order to reach preferable noise reduction, noise elimination is led
Flow thickness is larger, and spacing is smaller, and thickness and spacing are generally 50-100mm or so., can compared with before installation denoising device
Noise 20-30dB is reduced, but simultaneously, cooling tower air inlet draught area is than reducing 50% or so before installation, flowing resistance increase
More than 50Pa, ventilation reduce more than 20%, and cooling capacity reduces by more than 15%, and outlet water temperature raises 1.5 DEG C or so.
Embodiment 1.
Referring to Fig. 1 and Fig. 4-6.
Denoising device uses multiple noise elimination flow deflector groups 1, and each noise elimination flow deflector group 1 includes polylith noise elimination flow deflector 11,
The air inlet of cooling tower bottom has multiple noise elimination flow deflector groups 1.Cooling tower bottom shares two air inlets, two air inlets point
Not Wei advance air port and rear air inlet, advance air port is provided with the noise elimination flow deflector group 1 of multiple vertical directions arrangement, rear air inlet
The noise elimination flow deflector group 1 of multiple vertical direction arrangements is installed.
Multiple noise elimination flow deflector groups 1 are installed, the institute in same noise elimination flow deflector group 1 at the exhaust outlet at the top of cooling tower
There is noise elimination flow deflector 11 mutually parallel and be horizontally mounted, the distance between two pieces of noise elimination flow deflectors 11 of arbitrary neighborhood are homogeneous
Deng the noise elimination flow deflector group 1 of air inlet is vertically arranged, and the noise elimination flow deflector group 1 at air outlet is horizontally mounted, together
Noise elimination flow deflector 11 in one noise elimination flow deflector group 1 is mutually parallel.
Guiding device 2 is installed below exhaust outlet, pond silencer pad 3 is installed below guiding device.The four of cooling tower
Zhou Junwei sound-proof walls 4.The both sides of cooling tower are mounted on stair 5.The top of stair 5 is other to be provided with maintenance door 6.
Noise elimination flow deflector 11 is bending-type noise elimination flow deflector in the present embodiment.The center line of bending-type noise elimination flow deflector is a left side
Right symmetrical structure；The center line function of bending-type noise elimination flow deflector is y-1=cosh (nA0X), wherein x is that bending-type noise elimination is led
Vertical range on flow center line between the symmetry axis of any point and bending-type noise elimination flow deflector center line, y is bending-type
Vertical range on noise elimination flow deflector center line between the tangent line on any point and bending-type noise elimination flow deflector center line summit, A0
Enter pressure during bending-type noise elimination flow deflector end points for wind, n is the natural number more than 1；Bending-type noise elimination flow deflector center line
Thickness corresponding to upper any point is L,Wherein ρ is atmospheric density corresponding at the point, and v is at the point
Corresponding wind speed, P are to correspond to pressure at the point；The distance between adjacent two pieces of bending-types noise elimination flow deflector is d,Its
Middle υ0Enter speed during bending-type noise elimination flow deflector for wind, g is acceleration of gravity, and k is constant；Wherein bending-type noise elimination water conservancy diversion
Piece is layer structure, and the upper and lower surface of bending-type noise elimination flow deflector is guide layer, bending-type noise elimination flow deflector it is upper
It is sound absorbing layer between surface and lower surface.Y-1=cosh (nA0X) in, if y unit is m, 1 unit is m in the formula；If
Y unit is cm, then 1 unit is 0.01m in the formula.N value is customized according to the actual requirements, and more specifically cooling is appointed
The factors such as business, cooling tower specification are specifically considered.Design of the present utility model fully takes into account wind loss rate and initial air quantity
Relation is non-linear, more excellent by devising the energy-saving and noise-reducing performance under the conditions of this bending-type noise elimination baffle design.
The parallel lines of bending-type noise elimination flow deflector center line symmetry axis are made at any point on bending-type noise elimination flow deflector center line, and this is parallel
Line intersects with the edge of bending-type noise elimination flow deflector, and the atmospheric density of point of intersection is the point on bending-type noise elimination flow deflector center line
Corresponding atmospheric density, the wind speed of point of intersection is wind speed corresponding to the point on bending-type noise elimination flow deflector center line, point of intersection
Pressure is pressure corresponding to the point on bending-type noise elimination flow deflector center line.K value is with reference also to concrete condition, according to specific
Cooling task, the factor such as cooling tower specification specifically considers.Compared with board-type noise elimination flow deflector, bending-type noise elimination flow deflector makes
Obtain noise repeatedly to be turned back in communication process, improve noise elimination noise reduction ability.Therefore, under the premise of the requirement of equal noise reduction,
During using bending-type muffler plate, it can suitably reduce piece thickness, increase a pitch of fins, reduce influence of the bending to flow resistance, effectively improve logical
Air quantity, improve the cooling effect of cooling tower.
The left end and right-hand member of bending-type noise elimination flow deflector are arc, corresponding to bending-type noise elimination flow deflector center line left end
Thickness is L1, thickness corresponding to bending-type noise elimination flow deflector center line right-hand member is L2, the curvature of the left end of bending-type noise elimination flow deflector
Radius distance value isThe radius of curvature numerical value of the right-hand member of bending-type noise elimination flow deflector is
The vibration damper plate of polylith horizontal direction installation, vibration damper plate are provided between the adjacent noise elimination flow deflector group 1 of air inlet
One end be fixed on cooling tower, vibration damper plate is shaped as rectangular slab, leads between neighbouring two pieces of bending-type noise elimination flow deflectors
Cross vibration damper plate to be connected, space be present between adjacent vibration damper plate in horizontal direction.
The thickness for the bending-type noise elimination flow deflector that the present embodiment proposes is thinned as 30-50mm, and spacing increase is 100-
150mm, draught area increase by more than 30%, flowing resistance are reduced to 30Pa or so, ventilation increase by more than 10%, cooling capacity
5-10% is improved, outlet water temperature reduces 0.5-1 DEG C.In summary, the utility model proposes three kinds of Novel silencing flow deflectors can
As the denoising device of mechanical-draft cooling tower, the order of reflection of sound wave in a device is effectively increased, noise is repeatedly inhaled
Receive, improve noise reduction efficacy, and a noise elimination flow deflector pitch of fins can be increased, reduce piece thickness, effectively reduce flowing resistance, improve ventilation,
And then the cooling capacity of cooling tower is improved, reach the purpose of energy-saving and noise-reducing.
Embodiment 2.
Referring to Fig. 2 and Fig. 4-6.
Denoising device uses multiple noise elimination flow deflector groups 1, and each noise elimination flow deflector group 1 includes polylith noise elimination flow deflector 11,
The air inlet of cooling tower bottom has multiple noise elimination flow deflector groups 1.Cooling tower bottom shares two air inlets, two air inlets point
Not Wei advance air port and rear air inlet, advance air port is provided with the noise elimination flow deflector group 1 of multiple vertical directions arrangement, rear air inlet
The noise elimination flow deflector group 1 of multiple vertical direction arrangements is installed.
Multiple noise elimination flow deflector groups 1 are installed, the institute in same noise elimination flow deflector group 1 at the exhaust outlet at the top of cooling tower
There is noise elimination flow deflector 11 mutually parallel and be horizontally mounted, the distance between two pieces of noise elimination flow deflectors 11 of arbitrary neighborhood are homogeneous
Deng the noise elimination flow deflector group 1 of air inlet is vertically arranged, and the noise elimination flow deflector group 1 at air outlet is horizontally mounted, together
Noise elimination flow deflector 11 in one noise elimination flow deflector group 1 is mutually parallel.
Guiding device 2 is installed below exhaust outlet, pond silencer pad 3 is installed below guiding device.The four of cooling tower
Zhou Junwei sound-proof walls 4.The both sides of cooling tower are mounted on stair 5.The top of stair 5 is other to be provided with maintenance door 6.
Noise elimination flow deflector 11 is stepped noise elimination flow deflector in the present embodiment.Center line of stepped noise elimination flow deflector or so
Symmetrically, stepped noise elimination flow deflector includes noise elimination flow deflector left part and noise elimination flow deflector right part, noise elimination flow deflector left part and noise elimination
Flow deflector right part forms by noise elimination baffle, and the noise elimination water conservancy diversion number of blocks and noise elimination flow deflector that noise elimination flow deflector left part includes are right
The noise elimination water conservancy diversion number of blocks that portion includes is identical, and all noise elimination baffles are cube；In horizontal direction, noise elimination flow deflector is formed
The noise elimination baffle of left part is arranged in order from left to right, form noise elimination flow deflector left part noise elimination baffle from left to right successively to
Preceding arrangement；In horizontal direction, the noise elimination baffle of composition noise elimination flow deflector right part is arranged in order from left to right, forms noise elimination water conservancy diversion
The noise elimination baffle of piece left part from left to right arranges backward successively.By all noise elimination baffle alignments, when noise elimination baffle
Quantity it is sufficiently large, then its outline with for cooling tower bending-type denoising device outline it is identical.Using for cooling down
The stepped denoising device of tower, it can further increase the characteristic flexibly installed, on the other hand, adjacent noise elimination baffle can be with
Certain reflector space is formed, there is more firm reflector space compared to bending-type, similar to sunken luminous effect.Simultaneously because with
Bending-type shape is similar, avoids strongly reducing for air quantity, ensure that the cooling capacity of cooling tower foundation, while enhances noise reduction
The effect of energy-conservation.There is higher noise reduction compared to bending-type.
The thickness for the stepped noise elimination flow deflector that the present embodiment proposes is thinned as 30-50mm, and spacing increase is 100-
150mm, draught area increase by more than 30%, flowing resistance are reduced to 30Pa or so, ventilation increase by more than 10%, cooling capacity
5-10% is improved, outlet water temperature reduces 0.5-1 DEG C.In summary, the utility model proposes three kinds of Novel silencing flow deflectors can
As the denoising device of mechanical-draft cooling tower, the order of reflection of sound wave in a device is effectively increased, noise is repeatedly inhaled
Receive, improve noise reduction efficacy, and a noise elimination flow deflector pitch of fins can be increased, reduce piece thickness, effectively reduce flowing resistance, improve ventilation,
And then the cooling capacity of cooling tower is improved, reach the purpose of energy-saving and noise-reducing.
Embodiment 3.
Referring to Fig. 3-Fig. 4-6.
Denoising device uses multiple noise elimination flow deflector groups 1, and each noise elimination flow deflector group 1 includes polylith noise elimination flow deflector 11,
The air inlet of cooling tower bottom has multiple noise elimination flow deflector groups 1.Cooling tower bottom shares two air inlets, two air inlets point
Not Wei advance air port and rear air inlet, advance air port is provided with the noise elimination flow deflector group 1 of multiple vertical directions arrangement, rear air inlet
The noise elimination flow deflector group 1 of multiple vertical direction arrangements is installed.
Multiple noise elimination flow deflector groups 1 are installed, the institute in same noise elimination flow deflector group 1 at the exhaust outlet at the top of cooling tower
There is noise elimination flow deflector 11 mutually parallel and be horizontally mounted, the distance between two pieces of noise elimination flow deflectors 11 of arbitrary neighborhood are homogeneous
Deng the noise elimination flow deflector group 1 of air inlet is vertically arranged, and the noise elimination flow deflector group 1 at air outlet is horizontally mounted, together
Noise elimination flow deflector 11 in one noise elimination flow deflector group 1 is mutually parallel.
Guiding device 2 is installed below exhaust outlet, pond silencer pad 3 is installed below guiding device.The four of cooling tower
Zhou Junwei sound-proof walls 4.The both sides of cooling tower are mounted on stair 5.The top of stair 5 is other to be provided with maintenance door 6.
The present embodiment noise elimination flow deflector 11 is ripple type noise elimination flow deflector.The centre line shape of ripple type noise elimination flow deflector is
Sinusoidal waveform, the wave function of the centre line shape of ripple type noise elimination flow deflector areWherein α is wave function
Amplitude, A0Enter pressure during ripple type noise elimination flow deflector end points for wind, n is the natural number more than 1, ripple type noise elimination flow deflector
Horizontal width be 2X0,-X0≤x≤X0, ripple type corresponding to any point is eliminated the noise on the center line of ripple type noise elimination flow deflector
Flow deflector thickness is L, L=mA0ln2X, wherein m are constant, and x is that the center of ripple type noise elimination flow deflector center line disappears with ripple type
Vertical range on acoustic conductance flow center line between any point.α and n value is according to specific cooling task, cooling tower rule
The factors such as lattice are specifically considered.2X0Specific value according to cooling tower specification select.The design mainly considers the reality of cooling tower
Relation between cooling capacity and energy consumption, avoid invalid waste.
The thickness for the ripple type noise elimination flow deflector that the present embodiment proposes is thinned as 30-50mm, and spacing increase is 100-
150mm, draught area increase by more than 30%, flowing resistance are reduced to 30Pa or so, ventilation increase by more than 10%, cooling capacity
5-10% is improved, outlet water temperature reduces 0.5-1 DEG C.In summary, the utility model proposes three kinds of Novel silencing flow deflectors can
As the denoising device of mechanical-draft cooling tower, the order of reflection of sound wave in a device is effectively increased, noise is repeatedly inhaled
Receive, improve noise reduction efficacy, and a noise elimination flow deflector pitch of fins can be increased, reduce piece thickness, effectively reduce flowing resistance, improve ventilation,
And then the cooling capacity of cooling tower is improved, reach the purpose of energy-saving and noise-reducing.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and the principle described according to the utility model patent design are done, are wrapped
Include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (7)
1. a kind of bending-type denoising device for cooling tower, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group bag
The flow deflector of noise elimination containing polylith, cooling down the air inlet of tower bottom has multiple noise elimination flow deflector groups, at the exhaust outlet at the top of cooling tower
Multiple noise elimination flow deflector groups are installed, all noise elimination flow deflectors in same noise elimination flow deflector group are mutually parallel and horizontal peace
The distance between dress, two pieces of noise elimination flow deflectors of arbitrary neighborhood are equal, and the noise elimination flow deflector group of air inlet is vertically
Arrange, the noise elimination flow deflector group at air outlet is horizontally mounted, and the noise elimination flow deflector in same noise elimination flow deflector group is mutually put down
OK, it is characterised in that：The noise elimination water conservancy diversion plate shape is in bending-type, and the center line of noise elimination flow deflector is bilateral symmetry；Disappear
The center line function of acoustic conductance flow is y-1=cosh (nA0X), wherein x is any point and noise elimination on noise elimination flow deflector center line
Vertical range between the symmetry axis of flow deflector center line, y are any point and noise elimination flow deflector on noise elimination flow deflector center line
Vertical range between the tangent line on center line summit, A0Enter pressure during noise elimination flow deflector end points for wind, n is oneself more than 1
So number；Thickness corresponding to any point is L on noise elimination flow deflector center line,Wherein ρ is at the point pairs
The atmospheric density answered, v are that wind speed is corresponded at the point, and P is to correspond to pressure at the point；The distance between adjacent two pieces of noise elimination flow deflectors
For d,Wherein υ0Enter speed during noise elimination flow deflector for wind, g is acceleration of gravity, and k is constant；Wherein eliminate the noise
Flow deflector is layer structure, and the upper and lower surface of noise elimination flow deflector is guide layer, and the upper surface of noise elimination flow deflector is with
It is sound absorbing layer between surface.
2. the bending-type denoising device according to claim 1 for cooling tower, it is characterised in that：The noise elimination flow deflector
Left end and right-hand member be arc, thickness corresponding to noise elimination flow deflector center line left end is L1, noise elimination flow deflector center line right-hand member
Corresponding thickness is L2, the radius of curvature numerical value of the left end of noise elimination flow deflector isThe right-hand member of noise elimination flow deflector
Radius of curvature numerical value is
3. the bending-type denoising device according to claim 2 for cooling tower, it is characterised in that：Under the exhaust outlet
Side is provided with guiding device, and pond silencer pad is provided with below guiding device.
4. the bending-type denoising device according to claim 3 for cooling tower, it is characterised in that：The cooling tower bottom
Two air inlets are shared, two air inlets are respectively advance air port and rear air inlet, and advance air port is provided with multiple vertical directions
The noise elimination flow deflector group of arrangement, rear air inlet are provided with the noise elimination flow deflector group of multiple vertical direction arrangements.
5. the bending-type denoising device according to claim 1 for cooling tower, it is characterised in that：Air inlet is adjacent
The vibration damper plate of polylith horizontal direction installation is provided between noise elimination flow deflector group, one end of vibration damper plate is fixed on cooling tower, subtracted
Shake plate shape is rectangular slab, is connected between neighbouring two pieces of noise elimination flow deflectors by vibration damper plate, adjacent in horizontal direction
Space between vibration damper plate be present.
A kind of 6. stepped denoising device for cooling tower, based on being used for as described in claim 1-5 any claims
The energy-saving efficient bending-type denoising device of cooling tower, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group include more
Block noise elimination flow deflector, cooling down the air inlet of tower bottom has multiple noise elimination flow deflector groups, is installed at the exhaust outlet at the top of cooling tower
There are multiple noise elimination flow deflector groups, all noise elimination flow deflectors in same noise elimination flow deflector group are mutually parallel and are horizontally mounted,
The distance between two pieces of noise elimination flow deflectors of arbitrary neighborhood are equal, and the noise elimination flow deflector group of air inlet is vertically arranged
Cloth, the noise elimination flow deflector group at air outlet are horizontally mounted, and the noise elimination flow deflector in same noise elimination flow deflector group is mutually parallel,
It is characterized in that：The center line of the noise elimination flow deflector is symmetrical, and noise elimination flow deflector includes noise elimination flow deflector left part and noise elimination
Flow deflector right part, noise elimination flow deflector left part and noise elimination flow deflector right part form by noise elimination baffle, noise elimination flow deflector left part bag
The noise elimination water conservancy diversion number of blocks that the noise elimination water conservancy diversion number of blocks contained and noise elimination flow deflector right part include is identical, and all noise elimination baffles are
Cube；In horizontal direction, the noise elimination baffle of composition noise elimination flow deflector left part is arranged in order from left to right, forms noise elimination water conservancy diversion
The noise elimination baffle of piece left part from left to right forward permutations successively；In horizontal direction, the noise elimination of composition noise elimination flow deflector right part is led
Stream block is arranged in order from left to right, and the noise elimination baffle of composition noise elimination flow deflector left part from left to right arranges backward successively.
A kind of 7. ripple type denoising device for cooling tower, based on being used for as described in claim 1-5 any claims
The energy-saving efficient bending-type denoising device of cooling tower, including multiple noise elimination flow deflector groups, each noise elimination flow deflector group include more
Block noise elimination flow deflector, cooling down the air inlet of tower bottom has multiple noise elimination flow deflector groups, is installed at the exhaust outlet at the top of cooling tower
There are multiple noise elimination flow deflector groups, all noise elimination flow deflectors in same noise elimination flow deflector group are mutually parallel and are horizontally mounted,
The distance between two pieces of noise elimination flow deflectors of arbitrary neighborhood are equal, and the noise elimination flow deflector group of air inlet is vertically arranged
Cloth, the noise elimination flow deflector group at air outlet are horizontally mounted, and the noise elimination flow deflector in same noise elimination flow deflector group is mutually parallel,
It is characterized in that：The centre line shape of the noise elimination flow deflector is sinusoidal waveform, the waveform of the centre line shape of noise elimination flow deflector
Function isWherein α be wave function amplitude, A0Enter pressure during noise elimination flow deflector end points for wind, n is big
In 1 natural number, the horizontal width of noise elimination flow deflector is 2X0,-X0≤x≤X0, any point on the center line of noise elimination flow deflector
Corresponding noise elimination flow deflector thickness is L, L=mA0ln2X, wherein m are constant, and x is center and the noise elimination of noise elimination flow deflector center line
Vertical range on flow deflector center line between any point.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408857.6U CN206905580U (en) | 2017-04-19 | 2017-04-19 | It is a kind of for the bending-type of cooling tower, step type and ripple type denoising device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408857.6U CN206905580U (en) | 2017-04-19 | 2017-04-19 | It is a kind of for the bending-type of cooling tower, step type and ripple type denoising device |
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| CN206905580U true CN206905580U (en) | 2018-01-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084629A (en) * | 2017-04-19 | 2017-08-22 | 华电电力科学研究院 | A kind of bending-type, stepped and ripple type denoising device for cooling tower |
| CN108917018A (en) * | 2018-05-21 | 2018-11-30 | 老肯医疗科技股份有限公司 | A kind of medical air purifier |
-
2017
- 2017-04-19 CN CN201720408857.6U patent/CN206905580U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084629A (en) * | 2017-04-19 | 2017-08-22 | 华电电力科学研究院 | A kind of bending-type, stepped and ripple type denoising device for cooling tower |
| CN108917018A (en) * | 2018-05-21 | 2018-11-30 | 老肯医疗科技股份有限公司 | A kind of medical air purifier |
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