CN111207604A - High-efficient environment-friendly mechanical draft cooling tower - Google Patents

High-efficient environment-friendly mechanical draft cooling tower Download PDF

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Publication number
CN111207604A
CN111207604A CN202010125961.0A CN202010125961A CN111207604A CN 111207604 A CN111207604 A CN 111207604A CN 202010125961 A CN202010125961 A CN 202010125961A CN 111207604 A CN111207604 A CN 111207604A
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CN
China
Prior art keywords
rectangular
noise reduction
arranged below
sound
structural member
Prior art date
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Pending
Application number
CN202010125961.0A
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Chinese (zh)
Inventor
赵迎九
邱兆国
李庆建
魏普
石鑫
沈建永
江腾武
郭江海
任玉凤
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Huadian Heavy Industries Co Ltd
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Huadian Heavy Industries Co Ltd
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Publication date
Application filed by Huadian Heavy Industries Co Ltd filed Critical Huadian Heavy Industries Co Ltd
Priority to CN202010125961.0A priority Critical patent/CN111207604A/en
Publication of CN111207604A publication Critical patent/CN111207604A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/10Arrangements for suppressing noise
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/16Arrangements for preventing condensation, precipitation or mist formation, outside the cooler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00Component parts of trickle coolers
    • F28F25/02Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00Component parts of trickle coolers
    • F28F25/02Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/08Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface

Abstract

The invention discloses a high-efficiency environment-friendly 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 invention can reduce the generation of the feather fog and eliminate the low-frequency noise generated by the fan blades.

Description

High-efficient environment-friendly mechanical draft cooling tower
Technical Field
The invention relates to a high-efficiency environment-friendly mechanical ventilation cooling tower, belonging to the field of cooling towers.
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 an efficient and environment-friendly mechanical draft cooling tower to reduce the generation of the plume and eliminate the low frequency noise.
Disclosure of Invention
The invention aims to provide an efficient environment-friendly mechanical ventilation cooling tower, which can reduce the generation of fog and eliminate low-frequency noise.
In order to solve the technical problems, the invention adopts the following technical scheme: a high-efficiency environment-friendly 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 invention changes the structure of the noise inlet and the noise outlet in the existing mechanical draft cooling tower, namely, the air inlet silencer is arranged at the noise inlet, the air exhaust silencer is arranged at the noise outlet, and the air inlet silencer and the air exhaust silencer with the same silencing structure can reduce the fluid resistance of noise by at least 30 percent, thereby achieving the effect of reducing the local resistance in the mechanical draft cooling tower.
In the efficient environment-friendly mechanical ventilation cooling tower, the exhaust silencer and the intake silencer respectively comprise silencing cavities and silencing plates and/or pointed silencing bodies, the plurality of silencing plates and/or pointed silencing bodies are arranged in the silencing cavities, 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 above-mentioned efficient and environment-friendly mechanical draft cooling tower, the length of the first rectangular noise-damping portion is greater than the length of the second rectangular noise-damping portion. 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 efficient environment-friendly mechanical ventilation cooling tower, the first rectangular noise elimination part and the second rectangular noise elimination part are both provided with noise elimination 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 efficient environment-friendly 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 above-mentioned high-efficiency environment-friendly mechanical ventilation cooling tower, the sound-deadening layer is formed by 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 high-efficient environment-friendly mechanical draft cooling tower, the demister of making an uproar falls includes 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 efficient environment-friendly mechanical ventilation cooling tower, an included angle α between the square structural member and the horizontal plane is 45 degrees.
In the efficient and environment-friendly 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 invention has the following beneficial effects:
(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; compared with the common silencer, the air exhaust silencer and the air intake silencer of the invention have the advantages that: 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 invention adopts the air exhaust silencer and the air intake silencer to reduce the silencer resistance by eliminating the negative pressure resistance, eliminates the pneumatic noise caused by the negative pressure resistance at the tail part of the air flow, and realizes the low-frequency noise reduction. The exhaust silencer or the intake silencer of the invention is 1/3 of the weight of the conventional silencer, thus being convenient for construction and installation.
(4) The sound insulation guide cylinder adopts a silencing layer formed by glass wool and/or rock wool, so that low-frequency noise can be effectively absorbed, the noise reduction effect of the sound insulation guide cylinder is improved, and the noise reduction performance of the mechanical ventilation cooling tower is further improved.
(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, which 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 and not to limit 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 view of the intake silencer of the present invention;
FIG. 3 is a schematic view of the construction of the cusp-shaped muffler body of the present invention;
FIG. 4 is a schematic view of another intake silencer according to the present invention;
FIG. 5 is a schematic structural view of the acoustical panel of the present invention;
FIG. 6 is a schematic view of one construction of a noise reduction mist eliminator of the present invention;
FIG. 7 is a schematic view of another construction of a noise reduction mist eliminator of the present invention;
FIG. 8 is an enlarged view of C in FIG. 7;
fig. 9 is a schematic structural view 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 invention is further described with reference to the following figures and detailed description.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention.
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 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.
Example 1 of the invention: a high-efficiency environment-friendly mechanical ventilation cooling tower comprises 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 device is characterized by further comprising a sound insulation guide cylinder 3 arranged below the 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 zone 8 arranged below the water collector 5, and a water falling silencer 6 arranged below the water distribution filler zone 8. Wherein, the exhaust silencer 2 and the intake silencer 7 both comprise a silencing cavity 9 and a silencing plate 10 or a cusp-shaped silencing body 11, and the silencing plate 10 or the cusp-shaped silencing body 11 is arranged in the silencing cavity 9.
Example 2 of the invention: a high-efficiency environment-friendly mechanical ventilation cooling tower comprises 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 device is characterized by further comprising a sound insulation guide cylinder 3 arranged below the 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 zone 8 arranged below the water collector 5, and a water falling silencer 6 arranged below the water distribution filler zone 8. Wherein, exhaust silencer 2 and air inlet silencer 7 all include anechoic chamber 9 and a plurality of parallel arrangement's anechoic plate 10, and anechoic plate 10 is built-in anechoic chamber 9.
Example 3 of the invention: a high-efficiency environment-friendly mechanical ventilation cooling tower comprises 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 device is characterized by further comprising a sound insulation guide cylinder 3 arranged below the 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 zone 8 arranged below the water collector 5, and a water falling silencer 6 arranged below the water distribution filler zone 8. Wherein, the air exhaust silencer 2 and the air intake silencer 7 both comprise a silencing cavity 9 and a silencing tip-shaped silencing body 11, and the silencing tip-shaped silencing body 11 is arranged in the silencing cavity 9. The tip-shaped muffler body 11 includes a muffler tapered portion 12, a first rectangular muffler portion 13, and a second rectangular muffler portion 14, which are connected in this order. The length of the first rectangular noise canceling portion 13 is longer than the length of the second rectangular noise canceling portion 14. The first rectangular muffling portion 13 and the second rectangular muffling portion 14 are each provided with a muffling hole.
Example 4 of the invention: a high-efficiency environment-friendly mechanical ventilation cooling tower comprises 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 device is characterized by further comprising a sound insulation guide cylinder 3 arranged below the 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 zone 8 arranged below the water collector 5, and a water falling silencer 6 arranged below the water distribution filler zone 8. The exhaust silencer 2 and the intake silencer 7 respectively comprise a silencing cavity 9, a silencing plate 10 and a pointed silencing body 11, and the silencing plate 10 and the pointed silencing body 11 are arranged in the silencing cavity 9. The tip-shaped muffler body 11 includes a muffler tapered portion 12, a first rectangular muffler portion 13, and a second rectangular muffler portion 14, which are connected in this order. The length of the first rectangular noise canceling portion 13 is longer than the length of the second rectangular noise canceling portion 14. The first rectangular muffling portion 13 and the second rectangular muffling portion 14 are each provided with a muffling hole. The inner side wall of the sound insulation guide cylinder 3 is pasted with a sound attenuation layer. The sound-deadening layer is formed of glass wool.
Example 5 of the invention: a high-efficiency environment-friendly mechanical ventilation cooling tower comprises 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 device is characterized by further comprising a sound insulation guide cylinder 3 arranged below the 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 zone 8 arranged below the water collector 5, and a water falling silencer 6 arranged below the water distribution filler zone 8. The exhaust silencer 2 and the intake silencer 7 respectively comprise a silencing cavity 9, a silencing plate 10 and a pointed silencing body 11, the silencing plate 10 and the pointed silencing body 11 are arranged in the silencing cavity 9, and the silencing plates 10 and the pointed silencing bodies 11 are arranged in an ABAB shape at intervals (A is a silencing plate and B is a pointed silencing body). The tip-shaped muffler body 11 includes a muffler tapered portion 12, a first rectangular muffler portion 13, and a second rectangular muffler portion 14, which are connected in this order. The length of the first rectangular noise canceling portion 13 is longer than the length of the second rectangular noise canceling portion 14. The first rectangular muffling portion 13 and the second rectangular muffling portion 14 are each provided with a muffling hole. The inner side wall of the sound insulation guide cylinder 3 is pasted with a sound attenuation layer. The sound attenuation layer is formed by glass wool and rock wool. The noise reduction demister 4 includes 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.
The embodiment 6 of the invention relates to an efficient environment-friendly mechanical ventilation cooling tower, which comprises 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, an intake silencer 7 arranged at the bottom of the tower body 1, a sound insulation guide cylinder 3 arranged below the exhaust silencer 2, a noise reduction demister 4 arranged below the sound insulation guide cylinder 3, a water receiver 5 arranged below the noise reduction demister 4, a water distribution filler area 8 arranged below the water receiver 5, and a downpipe noise eliminator 6 arranged below the water distribution filler area 8, wherein the exhaust silencer 2 and the intake silencer 7 respectively comprise a noise reduction cavity 9, a noise reduction plate 10 and a cusp-shaped noise elimination body 11, the noise reduction plate 10 and the cusp-shaped noise elimination body 11 are arranged in an ABAB-shaped interval mode (A is a noise reduction plate, B is a cusp-shaped noise reduction body), the noise reduction body 11 comprises a noise reduction square part 12, a first rectangular cone part 13 and a second square part 3515, a square part 15 is arranged on the noise reduction structure, and an included angle is formed by connecting the square part 15 and a square part 3515 and a square part 15 is arranged between the noise reduction structure part and the noise reduction square part 15.
Example 7 of the invention: a high-efficiency environment-friendly mechanical ventilation cooling tower comprises 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 device is characterized by further comprising a sound insulation guide cylinder 3 arranged below the 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 zone 8 arranged below the water collector 5, and a water falling silencer 6 arranged below the water distribution filler zone 8. The exhaust silencer 2 and the intake silencer 7 respectively comprise a silencing cavity 9, a silencing plate 10 and a pointed silencing body 11, the silencing plate 10 and the pointed silencing body 11 are arranged in the silencing cavity 9, and the silencing plates 10 and the pointed silencing bodies 11 are arranged in an ABAB shape at intervals (A is a silencing plate and B is a pointed silencing body). The tip-shaped muffler body 11 includes a muffler tapered portion 12, a first rectangular muffler portion 13, and a second rectangular muffler portion 14, which are connected in this order. The length of the first rectangular noise canceling portion 13 is longer than the length of the second rectangular noise canceling portion 14. The first rectangular muffling portion 13 and the second rectangular muffling portion 14 are each provided with a muffling hole. The inner side wall of the sound insulation guide cylinder 3 is pasted with a sound attenuation layer. The sound-deadening layer is formed by rock wool. The noise reduction and mist eliminator 4 comprises a diamond-shaped structure 18, a third rectangular structure 19 connected to the diamond-shaped structure 18, and a fourth rectangular structure 20 connected to the diamond-shaped structure 18.
The working principle of the invention is as follows:
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. The silencing layer formed by the glass wool and/or the rock wool has the function of resisting low-frequency noise, and can effectively absorb the low-frequency noise, further eliminate the noise generated by the mechanical ventilation cooling tower and improve the noise reduction of the mechanical ventilation 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. In order to eliminate the fog, the noise reduction demister 4 formed by the first rectangular structural part 16, the square structural part 15 and the second rectangular structural part 17 which are sequentially connected is adopted, when saturated hot and humid air passes through the square structural part 15, negative pressure whirlpool wake vortexes are generated at a negative pressure region formed by the square structural part 15 and the second rectangular structural part 17, so that air flow disturbance is caused, the hot air from a dry region of a cooling tower and the hot and humid air from a wet region of the cooling tower are mixed more uniformly to form unsaturated air, the unsaturated air cannot generate a water vapor condensation phenomenon along with the temperature reduction, the fog cannot be generated, and the defogging effect of the mechanical ventilation cooling tower can be improved.
The invention also adopts a noise reduction demister formed by sequentially connecting a third rectangular structural member 19, a diamond structural member 18 and the third rectangular structural member 19 as shown in fig. 7, when saturated hot and humid air passes through the diamond structural member 18, negative pressure whirlpool wake vortex is generated at a negative pressure region formed by the square structural member 15 and the second rectangular structural member 17, so that air flow disturbance is realized, the hot air from a dry region of the cooling tower and the hot and humid air from a wet region of the cooling tower are mixed more uniformly to form unsaturated air, and as the unsaturated air does not generate water vapor condensation along with temperature reduction, fog is not generated, thereby also achieving the purpose of improving the demisting effect of the mechanical ventilation cooling tower.
The invention discloses a high-efficiency environment-friendly 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 invention can reduce the generation of the feather fog and eliminate the low-frequency noise generated by the fan blades.

Claims (10)

1. The efficient environment-friendly 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. The high-efficiency environment-friendly mechanical ventilation cooling tower as claimed in claim 1, wherein the exhaust muffler (2) and the intake muffler (7) each comprise a muffling cavity (9) and a plurality of muffling plates (10) and/or cusp-shaped muffling bodies (11), and the muffling plates (10) and/or the cusp-shaped muffling bodies (11) are/is arranged in the muffling cavity (9); the plurality of sound-absorbing plates (10) are arranged in parallel at equal intervals.
3. The tower of claim 2, wherein the sound-deadening cone (12), the first rectangular sound-deadening portion (13), and the second rectangular sound-deadening portion (14) are sequentially connected to each other.
4. An efficient and environment-friendly mechanical ventilation cooling tower as claimed in claim 3, wherein the length of the first rectangular sound-deadening portion (13) is greater than that of the second rectangular sound-deadening portion (14).
5. The tower of claim 3, wherein the first rectangular noise-reduction portion (13) and the second rectangular noise-reduction portion (14) are provided with noise-reduction holes.
6. The efficient and environment-friendly mechanical ventilation cooling tower as claimed in claim 1, wherein a sound-deadening layer is attached to the inner side wall of the sound-insulation guide cylinder (3).
7. The tower of claim 6, wherein the sound-damping layer is made of glass wool and/or rock wool.
8. An efficient and environment-friendly mechanical ventilation cooling tower as claimed in claim 5 or 7, wherein the noise reduction demister (4) comprises a square structural member (15), a first rectangular structural member (16) connected with the square structural member (15), and a second rectangular structural member (17) connected with the square structural member (15).
9. The tower of claim 8, wherein the angle α between the cube structure (15) and the horizontal plane is 45 degrees.
10. An efficient and environment-friendly mechanical ventilation cooling tower as claimed in claim 5 or 7, wherein the noise reduction demister (4) comprises a diamond-shaped structural member (18), a third rectangular structural member (19) connected with the diamond-shaped structural member (18), and a fourth rectangular structural member (20) connected with the diamond-shaped structural member (18).
CN202010125961.0A 2020-02-27 2020-02-27 High-efficient environment-friendly mechanical draft cooling tower Pending CN111207604A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114294972A (en) * 2021-11-26 2022-04-08 华电重工股份有限公司 Low-noise mechanical ventilation cooling tower

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CN107166990A (en) * 2017-05-25 2017-09-15 江苏海鸥冷却塔股份有限公司 The vortex street flow mixing device dispersed fog for dry-and wet-type cooling tower
CN108106452A (en) * 2017-12-22 2018-06-01 佛山静凉空调环保设备有限公司 A kind of partition type low noise counter-flow cooling tower
CN109488832A (en) * 2018-12-12 2019-03-19 华电重工股份有限公司 A kind of strip-type silencer
CN211903805U (en) * 2020-02-27 2020-11-10 华电重工股份有限公司 Low-noise water-saving mechanical ventilation cooling tower

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437729C1 (en) * 1984-10-15 1986-04-17 Dieter Prof. Dr.-Ing. 7500 Karlsruhe Wurz Cooling tower
CN2615622Y (en) * 2003-08-06 2004-05-12 北京绿创环保科技有限责任公司 Civil and industrial cooling tower noise eliminating silencer
CN202690540U (en) * 2012-05-07 2013-01-23 山东省临风鼓风机有限公司 Broadband silencer for fan
CN105571346A (en) * 2016-02-01 2016-05-11 华电重工股份有限公司 Environment-friendly mechanical draft cooling tower
CN107166990A (en) * 2017-05-25 2017-09-15 江苏海鸥冷却塔股份有限公司 The vortex street flow mixing device dispersed fog for dry-and wet-type cooling tower
CN108106452A (en) * 2017-12-22 2018-06-01 佛山静凉空调环保设备有限公司 A kind of partition type low noise counter-flow cooling tower
CN109488832A (en) * 2018-12-12 2019-03-19 华电重工股份有限公司 A kind of strip-type silencer
CN211903805U (en) * 2020-02-27 2020-11-10 华电重工股份有限公司 Low-noise water-saving mechanical ventilation cooling tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114294972A (en) * 2021-11-26 2022-04-08 华电重工股份有限公司 Low-noise mechanical ventilation cooling tower

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