CN211903805U - Low-noise water-saving mechanical ventilation cooling tower - Google Patents
Low-noise water-saving mechanical ventilation cooling tower Download PDFInfo
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- CN211903805U CN211903805U CN202020221083.8U CN202020221083U CN211903805U CN 211903805 U CN211903805 U CN 211903805U CN 202020221083 U CN202020221083 U CN 202020221083U CN 211903805 U CN211903805 U CN 211903805U
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Abstract
The utility model discloses a low-noise water-saving mechanical ventilation cooling tower, which comprises a tower body and a noise reduction structure, wherein the noise reduction structure comprises an exhaust silencer arranged at the top of the tower body and an intake silencer arranged at the bottom of the tower body; the device comprises a sound insulation guide cylinder arranged below an exhaust silencer, a noise reduction demister arranged below the sound insulation guide cylinder, a water collector arranged below the noise reduction demister, a water distribution filler zone arranged below the water collector, and a water falling silencer arranged below the water distribution filler zone. The utility model discloses can reduce the production of feather fog, eliminate the produced low frequency noise of fan blade.
Description
Technical Field
The utility model relates to a water-saving mechanical draft cooling tower of low noise belongs to the cooling tower field.
Background
The existing mechanical draft cooling tower is that hot water is sprayed on the surface of a filler and contacts cold air through the filler, so that exchange effect is generated between the hot water and the cold air, and part of the hot water is evaporated, namely evaporation latent heat in evaporation water vapor is discharged to the air. In winter or under the condition of high environmental humidity, a large amount of fog can be generated after saturated damp and hot air radiated by the mechanical ventilation cooling tower is contacted with the atmosphere, so that the environment and nearby traffic are influenced. The traditional mechanical ventilation cooling tower has the problem that low-frequency noise is difficult to eliminate. Therefore, there is a need to develop a low-noise water-saving mechanical draft cooling tower to reduce the generation of the plume and eliminate the low-frequency noise.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water-saving mechanical draft cooling tower of low noise can be with the production that reduces the feather fog to eliminate low frequency noise.
In order to solve the technical problem, the utility model discloses a following technical scheme: a low-noise water-saving mechanical ventilation cooling tower comprises a tower body and a noise reduction structure, wherein the noise reduction structure comprises an exhaust silencer arranged at the top of the tower body and an intake silencer arranged at the bottom of the tower body; the device comprises a sound insulation guide cylinder arranged below an exhaust silencer, a noise reduction demister arranged below the sound insulation guide cylinder, a water collector arranged below the noise reduction demister, a water distribution filler zone arranged below the water collector, and a water falling silencer arranged below the water distribution filler zone. The utility model discloses changed the structure of noise entry and noise outlet among the current mechanical draft cooling tower, installed the air inlet silencer in noise entrance promptly, at the noise outlet department installation silencer of airing exhaust, the air inlet silencer that has the same noise-abatement structure can reduce noise fluid resistance at least 30% with the silencer of airing exhaust, plays the effect that reduces local resistance in the mechanical draft cooling tower.
In the low-noise water-saving mechanical ventilation cooling tower, the exhaust silencer and the intake silencer respectively comprise a silencing cavity and silencing plates and/or pointed silencing bodies, the plurality of silencing plates and/or pointed silencing bodies are arranged in the silencing cavity, and each pointed silencing body comprises a silencing cone part, a first rectangular silencing part and a second rectangular silencing part which are sequentially connected; the plurality of sound-absorbing plates are arranged in parallel at equal intervals. The silencing plate and the cusp-shaped silencing body have the silencing and sound-absorbing functions, and can effectively absorb noise through the silencing plate or the cusp-shaped silencing body arranged in the silencing cavity, so that the noise reduction amount of the mechanical ventilation cooling tower is increased.
In the aforementioned low-noise water-saving mechanical draft cooling tower, the length of the first rectangular noise-reducing part is greater than the length of the second rectangular noise-reducing part. The area of the cross section of the first rectangular sound attenuation part is larger than that of the cross section of the second rectangular sound attenuation part, and the first rectangular sound attenuation part is a sound absorption main body part. The silencing plate and the cusp-shaped silencing body have the silencing and sound-absorbing functions, and can effectively absorb noise through the silencing plate or the cusp-shaped silencing body arranged in the silencing cavity, so that the noise reduction amount of the mechanical ventilation cooling tower is increased.
In the aforementioned low-noise water-saving mechanical ventilation cooling tower, the first rectangular noise-reducing portion and the second rectangular noise-reducing portion are both provided with noise-reducing holes. The noise fluid flows along the surface of the muffling cone to the first rectangular muffling portion, and enters the interiors of the first rectangular muffling portion and the second rectangular muffling portion through the muffling hole.
In the low-noise water-saving mechanical ventilation cooling tower, the inner side wall of the sound insulation guide cylinder is coated with the sound attenuation layer. The noise reduction layer attached to the inner side wall of the guide cylinder can effectively absorb turbulent flow noise generated by the tip of the fan blade, and the noise reduction amount of the mechanical ventilation cooling tower is further improved.
In the aforementioned low-noise water-saving mechanical ventilation cooling tower, the sound-deadening layer is formed of glass wool and/or rock wool. The noise reduction layer formed by the glass wool and/or the rock wool can effectively absorb low-frequency noise and improve the noise reduction effect of the sound insulation guide cylinder.
In the aforementioned water-saving mechanical draft cooling tower of low noise, the defroster of making an uproar falls includes the square structure, the first rectangle structure of being connected with the square structure, and the second rectangle structure of being connected with the square structure.
In the aforementioned low-noise water-saving mechanical ventilation cooling tower, an included angle α between the cube structural member and the horizontal plane is 45 degrees.
In the aforementioned low-noise water-saving mechanical ventilation cooling tower, the noise reduction demister comprises a diamond-shaped structural member, a third rectangular structural member connected with the diamond-shaped structural member, and a fourth rectangular structural member connected with the diamond-shaped structural member.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the air exhaust silencer and the air inlet silencer can improve the noise reduction of the mechanical ventilation cooling tower by 5 decibels, the sound insulation guide cylinder can improve the noise reduction by at least 5 decibels, and the noise reduction demister can improve the noise reduction by 5 decibels, so that the whole noise generated by the mechanical ventilation cooling tower is greatly reduced, and the surrounding environment of the mechanical ventilation cooling tower is ensured; the utility model discloses exhaust silencer and air inlet silencer compare with ordinary silencer: the exhaust muffler or the intake muffler is less than the common muffler, so the noise reduction material can be saved by more than 17 percent, and the cost is saved.
(2) By adopting the noise reduction demister, the cold and hot mixing is more sufficient, the emission of the plume is reduced, the water saving amount can be effectively improved by about 10%, and the resistance is reduced by more than 30%;
(3) the utility model discloses the silencer resistance has been reduced to the mode that adopts exhaust silencer and air inlet silencer utilization elimination negative pressure resistance to eliminate the aerodynamic noise that air current afterbody negative pressure resistance arouses, realized the low frequency and fallen and make an uproar, compare with conventional silencer structure, the utility model provides a difficult problem that the elimination local resistance of conventional silencer and low frequency were fallen and are made an uproar. The utility model discloses exhaust silencer or air inlet silencer is 1/3 of conventional silencer weight, the construction installation of being convenient for.
(4) The amortization layer that sound insulation draft tube adopted glass cotton and/or rock wool to form can the effective absorption low frequency noise, improves sound insulation draft tube's noise reduction effect, has further improved the utility model discloses mechanical draft cooling tower's the performance of making an uproar of falling.
(5) The noise reduction function demister integrally eliminates noise by using a plate silencer principle, turbulent flow is formed by a rotation negative pressure zone formed by a square structural member and a second rectangular structural member or a rotation negative pressure zone formed by a diamond structural member and a fourth rectangular structural member, hot air from a dry zone of a cooling tower and humid hot air from a wet zone of the cooling tower are uniformly mixed, and therefore the phenomenon of fog at the outlet of a mechanical draft cooling tower is improved and avoided, and the generation of the fog can be reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention without undue limitation of the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the intake silencer of the present invention;
fig. 3 is a schematic structural view of the cusp-shaped muffler body of the present invention;
FIG. 4 is a schematic structural view of another intake silencer according to the present invention;
FIG. 5 is a schematic diagram of the structure of the silencer of the present invention;
FIG. 6 is a schematic structural view of the noise reduction and defogger of the present invention;
FIG. 7 is a schematic view of another structure of the noise reduction and defogger of the present invention;
FIG. 8 is an enlarged view of C in FIG. 7;
fig. 9 is a schematic structural diagram of an exhaust muffler of the present invention.
Reference numerals: 1-a tower body, 2-an exhaust silencer, 3-a sound insulation guide cylinder, 4-a noise reduction demister, 5-a water receiver, 6-a water falling silencer, 7-an air inlet silencer, 8-a water distribution filler region, 9-a silencing cavity, 10-a silencing plate, 11-a pointed silencer, 12-a silencing cone, 13-a first rectangular silencing part, 14-a second rectangular silencing part, 15-a cube structural member, 16-a first rectangular structural member, 17-a second rectangular structural member, 18-a diamond structural member, 19-a third rectangular structural member and 20-a fourth rectangular structural member.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
In order to make the technical field person understand the utility model scheme better, combine the attached drawings in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model clearly, describe completely.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model discloses a theory of operation:
the noise fluid resistance is reduced through the air inlet silencer 7 so as to reduce the local resistance at the noise inlet, and meanwhile, the noise at the noise outlet is further absorbed by the air exhaust silencer 2 which has the same silencing structure with the air inlet silencer 7, so that the noise generated by the mechanical ventilation cooling tower is effectively reduced. Noise is absorbed by a sound-deadening layer attached to the inner side wall of the sound-insulation guide cylinder 3, so that turbulent flow noise generated by a fan blade at the top of the mechanical ventilation cooling tower is eliminated. Adopt the amortization layer of glass cotton and/or rock wool formation to have the effect of impedance low frequency noise, can effective absorption low frequency noise through this amortization layer, further eliminate the produced noise of mechanical draft cooling tower, improve the utility model discloses the volume of making an uproar falls of mechanical draft cooling tower.
The cold air enters the mechanical ventilation cooling tower and is changed into saturated damp and hot air after heat exchange, and water vapor in the saturated damp and hot air is condensed along with the reduction of the temperature, so that a large amount of fog can be generated. For eliminating the feather fog, the utility model discloses in adopt by the first rectangle structure 16 that connects gradually, the defroster 4 of making an uproar falls of square structure 15 and the formation of second rectangle structure 17, when the humid hot-air of saturation passes through square structure 15, form negative pressure district department at square structure 15 and second rectangle structure 17 and produce the negative pressure wake vortex that circles round, thereby make the air current disturbance, it is more even to make the hot-air that comes from the cooling tower dry zone mix with the humid hot-air that comes from the cooling tower wet zone, and then form unsaturated air, unsaturated air can not reduce and produce the vapor condensation phenomenon along with the temperature, thereby can not produce the feather fog, can improve the defogging effect of mechanical draft cooling tower from this.
The utility model discloses still adopted as shown in fig. 7 by third rectangle structure 19, rhombus structure 18 and third rectangle structure 19 connect gradually and the defroster of making an uproar that falls that forms, when saturated damp and hot air passes through rhombus structure 18, form negative pressure district department at cube structure 15 and second rectangle structure 17 and produce the negative pressure wake vortex that circles round, thereby make the air current disturbance, it is more even to make the hot-air that comes from the cooling tower dry zone mix with the damp and hot air who comes from the cooling tower wet zone, in order to form unsaturated air, because of unsaturated air can not reduce along with the temperature and produce the vapor condensation phenomenon, therefore can not produce the feather fog, from this can reach the purpose that improves mechanical force ventilation cooling tower defogging effect equally.
Claims (10)
1. A low-noise water-saving mechanical ventilation cooling tower is characterized by comprising a tower body (1) and a noise reduction structure, wherein the noise reduction structure comprises an exhaust silencer (2) arranged at the top of the tower body (1) and an intake silencer (7) arranged at the bottom of the tower body (1); the air-conditioning system is characterized by further comprising a sound insulation guide cylinder (3) arranged below the air exhaust silencer (2), a noise reduction demister (4) arranged below the sound insulation guide cylinder (3), a water collector (5) arranged below the noise reduction demister (4), a water distribution filler area (8) arranged below the water collector (5), and a water falling silencer (6) arranged below the water distribution filler area (8).
2. A low-noise water-saving mechanical ventilation cooling tower according to claim 1, wherein the exhaust muffler (2) and the intake muffler (7) each comprise a muffling chamber (9) and a plurality of muffling plates (10) and/or cusp-shaped muffling bodies (11), the muffling plates (10) and/or the cusp-shaped muffling bodies (11) are built in the muffling chamber (9); the plurality of sound-absorbing plates (10) are arranged in parallel at equal intervals.
3. A low-noise water-saving mechanical draft cooling tower according to claim 2, wherein the cusp-shaped noise damper (11) comprises a noise damping cone portion (12), a first rectangular noise damping portion (13) and a second rectangular noise damping portion (14) which are connected in this order.
4. A low noise water-saving mechanical draft cooling tower according to claim 3, wherein the length of the first rectangular noise damping portion (13) is longer than the length of the second rectangular noise damping portion (14).
5. A low noise water saving type mechanical draft cooling tower according to claim 3, wherein the first rectangular noise reduction part (13) and the second rectangular noise reduction part (14) are provided with noise reduction holes.
6. A low-noise water-saving mechanical ventilation cooling tower according to claim 1, wherein the inner side wall of the sound insulation guide cylinder (3) is coated with a sound-absorbing layer.
7. A low noise water-saving mechanical draft cooling tower according to claim 6, wherein the sound deadening layer is formed of glass wool and/or rock wool.
8. A low noise water saving type mechanical draft cooling tower according to claim 5 or 7, wherein the noise reduction defogger (4) comprises a cube structure (15), a first rectangular structure (16) connected to the cube structure (15), and a second rectangular structure (17) connected to the cube structure (15).
9. A low noise water saving type mechanical draft cooling tower according to claim 8, wherein the angle α between the square structural member (15) and the horizontal plane is 45 degrees.
10. A low noise water saving type mechanical draft cooling tower according to claim 5 or 7, wherein the noise reduction defogger (4) comprises a diamond structure (18), a third rectangular structure (19) connected with the diamond structure (18), and a fourth rectangular structure (20) connected with the diamond structure (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020221083.8U CN211903805U (en) | 2020-02-27 | 2020-02-27 | Low-noise water-saving mechanical ventilation cooling tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020221083.8U CN211903805U (en) | 2020-02-27 | 2020-02-27 | Low-noise water-saving mechanical ventilation cooling tower |
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| CN211903805U true CN211903805U (en) | 2020-11-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207604A (en) * | 2020-02-27 | 2020-05-29 | 华电重工股份有限公司 | High-efficient environment-friendly mechanical draft cooling tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207604A (en) * | 2020-02-27 | 2020-05-29 | 华电重工股份有限公司 | High-efficient environment-friendly mechanical draft cooling tower |
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