CN210238899U - Vibration and noise reduction base for roof cooling tower - Google Patents
Vibration and noise reduction base for roof cooling tower Download PDFInfo
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- CN210238899U CN210238899U CN201920525184.1U CN201920525184U CN210238899U CN 210238899 U CN210238899 U CN 210238899U CN 201920525184 U CN201920525184 U CN 201920525184U CN 210238899 U CN210238899 U CN 210238899U
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Abstract
The utility model discloses a roofing cooling tower damping falls base of making an uproar belongs to the equipment damping and falls the technical field of making an uproar. The base comprises a plurality of pairs of bottom beams arranged on a floor plate, a base platform connected with the tops of the pair of bottom beams, a floating platform arranged on the base platform and a spring shock absorber arranged on the floating platform. The vibration load generated when the cooling tower operates is transmitted to the floating platform after being weakened through the spring shock absorber through the supporting feet, and is weakened again through the vibration isolation and sound absorption material, so that the low-frequency vibration noise is transmitted to the floor plate through the base platform and the bottom beam, and the standard of building environment noise control is achieved. In addition, the base platform, the bottom beam and the floor plate form an integral structure, so that the heat-insulating layer, the impermeable layer and the surface layer on the floor plate are effectively prevented from being damaged by vertical load, and the stability and the bearing capacity of the structure are improved.
Description
Technical Field
The utility model relates to a roofing cooling tower damping falls base of making an uproar belongs to the equipment damping and falls the technical field of making an uproar.
Background
In recent years, with the rapid development of the construction industry, the noise problem of various construction equipment is gradually highlighted. In particular, in cooling towers installed on the skirt or roof of high-rise buildings, the vibration and airflow noise are transmitted by diffusion, which causes strong noise pollution to surrounding buildings, and particularly, transmitted to lower office areas through floors, which causes serious interference to the working environment. Meanwhile, mechanical vibration is transmitted to the periphery in a low-frequency sound mode through the installation foundation and the surrounding structure, certain potential harm is caused to the structure, and radiation secondary solid-borne sound is generated on the surface of the building structure, so that the pollution of environmental noise is aggravated.
Generally, in the construction process, a silencer, a sound insulation screen, a vibration damping pad, a vibration damper and other measures are arranged on a cooling tower, so that noise transmitted to the periphery through air can be reduced, but low-frequency vibration noise transmitted through a floor slab when the cooling tower operates cannot be solved. And the existing cooling tower foundation is usually directly arranged on the finished surface layer of the floor plate, and the heat-insulating layer, the impermeable layer and the surface layer on the floor plate are easy to damage under the action of vibration load.
SUMMERY OF THE UTILITY MODEL
The utility model provides a roofing cooling tower damping base of making an uproar for eliminate the low frequency vibration noise through the floor transmission when cooling tower moves, and the cooling tower basis can not exert an influence to heat preservation, barrier layer and the surface course on the floor board.
For solving the technical problem, the utility model discloses a following technical scheme:
a roof cooling tower vibration and noise reduction base comprises:
the floor plate comprises a plurality of pairs of bottom beams arranged on the floor plate, wherein each pair of bottom beams are arranged in parallel at intervals, and the bottom beams and the floor plate form an integrated structure;
the top of each pair of bottom beams is connected through the base platform, the side edge of the base platform is provided with a convex edge, a groove is formed between the convex edges, and the base platform and the bottom beams form an integrated structure;
the floating platform is arranged in the groove of the base platform and comprises a force transmission plate and a vibration isolation and sound absorption material arranged between the force transmission plate and the base platform;
and the spring damper is arranged on the force transmission plate and used for supporting a supporting leg of the cooling tower.
Further, non-hardening sealant is filled between the floating platform and the convex edge.
Furthermore, a waterproof layer is arranged between the force transmission plate and the vibration isolation and sound absorption material.
Further, the sound-absorbing material comprises sound-absorbing cotton located below and a rubber vibration-isolating pad located on the sound-absorbing cotton.
Furthermore, a horizontal impermeable layer is laid on the floor plate and extends upwards for a certain height at the bottom beam part.
Compared with the prior art, the utility model provides a pair of base of making an uproar falls in roofing cooling tower damping, with the base platform, the floorbar becomes overall structure with the floor plate, lay vibration isolation sound absorbing material and biography power board formation floating platform in the recess of base platform, then set up on the biography power board with cooling tower spike position assorted spring damper, after the vibration load when with the cooling tower operation weakens through spring damper through the spike, transmit to floating platform, weaken once more by vibration isolation sound absorbing material, make the base platform, the floorbar transmits the low frequency vibration noise on the floor plate, reach the standard of building environmental noise control. In addition, the base platform, the bottom beam and the floor plate form an integral structure, so that the heat-insulating layer, the impermeable layer and the surface layer on the floor plate are effectively prevented from being damaged by vertical load, and the stability and the bearing capacity of the structure are improved.
Drawings
Fig. 1 is a schematic view of a roof cooling tower damping and noise reducing base frame provided with a cooling tower according to an embodiment of the present invention;
fig. 2 is a top view of a bottom beam and a base platform in an embodiment of the invention;
fig. 3 is a schematic structural diagram of a damping and noise-reducing pedestal frame of a cooling tower according to an embodiment of the present invention.
The numbers in the figures are as follows:
1-floor plate; 2-barrier layer; 3-a protective layer; 10-a bottom beam; 20-a base platform; 21-convex edge; 30-a floating platform; 31-a force transmission plate; 32-vibration isolation and sound absorption material; 32-vibration isolating and sound absorbing material 32; 33-sound absorbing cotton; 34-rubber vibration isolator; 35-non-hardening sealant; 36-a waterproof layer; 40-spring damper; 50-a cooling tower; 51-cooling tower feet.
Detailed Description
The present invention provides a vibration and noise reduction base for a roof cooling tower, which is described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The embodiment provides a vibration and noise reduction base for a roof cooling tower, which is further described with reference to fig. 1 to 3. This roofing cooling tower damping base of making an uproar that falls includes:
the floor plate comprises a plurality of pairs of bottom beams 10 arranged on a floor plate 1, wherein each pair of bottom beams 10 are arranged in parallel at intervals, and the bottom beams 10 and the floor plate 1 form an integral structure;
the top of each pair of bottom beams 10 is connected through the base platform 20, the side edge of the base platform 20 is provided with a convex edge 21, a groove is formed between the convex edges 21, and the base platform 20 and the bottom beams 10 form an integral structure;
the floating platform 30 is arranged in the groove of the base platform 20 and comprises a force transmission plate 31 and a vibration isolation and sound absorption material 32 arranged between the force transmission plate 31 and the base platform 20;
the spring damper 40 is provided on the force transmission plate 31 and supports a brace 51 of the cooling tower 50.
Referring to fig. 1 and 2, the vibration and noise reduction base for a roof cooling tower includes two pairs of bottom beams 10, wherein each pair of bottom beams 10 is provided with 1 base platform 20, two base platforms 20 are provided, each base platform 20 is provided with two rows of spring dampers 40, the positions of the spring dampers 40 correspond to the positions of the cooling tower supporting feet 51, and 4 rows of supporting feet 51 of the cooling tower 50 are respectively supported on 4 rows of spring dampers 40 on the two base platforms 20. When the cooling tower 50 is operated, the vibration load is weakened by the spring absorber 40 through the supporting feet 51 and then transferred to the floating platform 30, and the vibration isolation and sound absorption material 32 is weakened again, so that the low-frequency vibration noise is transferred to the floor plate 1 from the base platform 20 and the bottom beam 10, and the standard of building environment noise control is achieved.
The force transmission plate 31 can be made of a lightweight concrete plate or a steel plate, and the concentrated load of the supporting feet 51 is uniformly applied to the vibration isolation and sound absorption material 32 after being diffused through the force transmission plate 31, so that the vibration isolation and sound absorption material 32 can effectively play a role in vibration attenuation and noise reduction. For example, as shown in fig. 3, the vibration isolating and sound absorbing material 32 includes a sound absorbing cotton 33 located below and a rubber vibration isolating pad 34 located on the sound absorbing cotton 33. Preferably, a waterproof layer 36 is provided between the force transmission plate 31 and the vibration isolation and sound absorption material 32 to prevent rainwater or cooling water from entering the vibration isolation and sound absorption material 32 and affecting the vibration isolation and sound absorption material 32 in terms of vibration and noise reduction.
As shown in fig. 3, the spring damper 40 includes a spring body, a pressing plate fixedly connected to the upper end of the spring body, and a fixing plate fixedly connected to the upper end of the spring body, the fixing plate is connected to the force transmission plate by bolts, and the supporting leg 51 of the cooling tower is supported on the pressing plate.
Further, as shown in fig. 3, a gap between the floating platform 30 and the convex edge 21 is filled with a non-hardened sealant 35, the non-hardened sealant 35 has certain elasticity, so that the low-frequency vibration load of the force transmission plate 31 can be prevented from directly acting on the convex edge 21 of the base platform 20, and in addition, the non-hardened sealant 35 can prevent rainwater or cooling water from entering the vibration isolation and sound absorption material 32 through the gap.
The cooling tower 50 is usually installed on the floor board 1 of the top floor, and an insulating layer, an impermeable layer and a surface layer are often laid on the floor board 1 of the top floor. In order to provide the floor slab 1 with a good impermeable effect, the horizontal impermeable layer 2 of the floor slab 1 extends upwards to a certain height at the bottom beam 10. Furthermore, a protective layer 3 is arranged outside the impermeable layer 2, for example, mortar is used for plastering or a decorative surface layer is arranged, so that the impermeable layer 2 is prevented from being directly exposed to the environment. The bottom beam 10 directly transmits the vertical load to the floor plate 1, and the vertical load is effectively prevented from damaging the heat preservation layer, the impermeable layer and the surface layer. The base platform 20, the bottom beam 10 and the floor plate 1 form an integral structure, and the stability and the bearing capacity of the structure are improved.
Example two
The embodiment provides a construction method of a vibration and noise reduction base of a roof cooling tower, which is further described with reference to fig. 1 to 3. The construction method comprises the following steps:
in the construction of the floor plate 1, the bottom beam steel bars of the roof cooling tower vibration and noise reduction base are pre-embedded, so that the bottom beam steel bars and the floor plate steel bars form a whole;
after the floor plate 1 is poured, chiseling the concrete at the bottom beam 10, and then pouring the concrete of the bottom beam 10 and the concrete of the base platform 20 by using a vertical mold, so that the base platform 20, the bottom beam 10 and the floor plate 1 form an integral structure, wherein the base platform 20 is provided with edges, and a groove is formed between the edges;
laying vibration isolation and sound absorption materials 32 in the grooves, and then arranging a force transmission plate 31 on the vibration isolation and sound absorption materials 32 to form a floating platform 30;
a plurality of spring dampers 40 are arranged on the force transmission plate 31, and the positions of the spring dampers 40 are matched with the positions of the cooling tower supporting feet 51.
Further, a non-hardening sealant 35 is filled between the floating platform 30 and the ledge 21.
Further, a waterproof layer 36 is provided between the force transmission plate 31 and the vibration damping and sound absorbing material 32. Wherein, the sound-absorbing material comprises a sound-absorbing cotton 33 positioned below and a rubber vibration-isolating pad 34 positioned on the sound-absorbing cotton 33.
Further, the construction method also comprises the step of paving a horizontal impermeable layer 2 on the floor slab 1, wherein the horizontal impermeable layer 2 extends upwards for a certain height at the position of the bottom beam 10. Further, a protective layer 3 is arranged to cover the impermeable layer 2, such as mortar coating or a decorative surface layer is arranged, so as to prevent the impermeable layer 2 from being directly exposed to the environment.
EXAMPLE III
In a certain comprehensive commercial office building project, the cooling tower is arranged on 24 layers of roofs of an office tower building, and 16 square cross-flow cooling towers are used in total. Because of lack good damping precaution when the cooling tower installation, lead to cooling tower fan motor operation vibration to pass through equipment foundation and transmit to the building, especially 23 layers shake and feel showing, the noise is serious, seriously influences work official working. Through field detection, the noise value of the roof cooling tower reaches 65dB (A), the noise detection value in 23-layer offices reaches 52dB (A), and according to the requirements of urban area environmental noise standard and acoustic-low noise workplace design, the noise value exceeds the standard, and the cooling tower needs to be subjected to vibration reduction and noise reduction. In order to reduce the vibration noise of the cooling tower to the maximum extent and transmit the vibration noise to the lower-layer top plate through the floor slab and avoid the problems caused by the conventional vibration reduction measures, the technical scheme of the combined vibration reduction and noise reduction of the overhead floating platform and the spring vibration absorber is provided.
According to the equipment form, as shown in fig. 1 to 3, four bottom beams 10 are arranged on the roof, and a base platform 20 is additionally arranged on two adjacent bottom beams 10, so that the base platform and the floor plate 1 form an integral structure during structural construction, and the flatness and the stress balance of the base are ensured. The dimensions of the bottom beams 10 and the base platform 20 may be determined according to specific design requirements and the size and weight of the equipment. A floating platform 30 is laid in the groove between the ledges 21 of the base platform 20. The floating platform 30 is composed of a rubber vibration isolation pad 34, sound absorption cotton 33, a waterproof film and a light concrete layer. Meanwhile, the spring dampers 40 are uniformly arranged below the cooling tower supporting feet 51, and the spring dampers 40 are fixed on the floating platform 30. When the cooling tower 50 operates, vibration is firstly weakened through the spring vibration absorbers 40 and then transmitted to the floating platform 30, vibration is further diffused and weakened after vibration reduction is carried out through the rubber vibration isolation pads 34 and sound absorption is carried out through the sound absorption cotton 33, transmission of vibration noise is effectively weakened through a double-layer vibration isolation and layer-by-layer vibration attenuation mode, low-frequency vibration noise trouble of floors near the cooling tower can be eliminated, and noise is reduced to be within a standard range of building environment noise control.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. The utility model provides a roofing cooling tower damping and noise reduction base which characterized in that includes:
the floor plate comprises a plurality of pairs of bottom beams arranged on the floor plate, wherein each pair of bottom beams are arranged in parallel at intervals, and the bottom beams and the floor plate form an integrated structure;
the top of each pair of bottom beams is connected through the base platform, the side edge of the base platform is provided with a convex edge, a groove is formed between the convex edges, and the base platform and the bottom beams form an integrated structure;
the floating platform is arranged in the groove of the base platform and comprises a force transmission plate and a vibration isolation and sound absorption material arranged between the force transmission plate and the base platform;
and the spring damper is arranged on the force transmission plate and used for supporting a supporting leg of the cooling tower.
2. A roof cooling tower vibration and noise reduction base as claimed in claim 1,
and non-hardened sealant is filled between the floating platform and the convex edge.
3. A roof cooling tower vibration and noise reduction base as claimed in claim 1,
and a waterproof layer is arranged between the force transmission plate and the vibration isolation and sound absorption material.
4. A roof cooling tower vibration and noise reduction base as claimed in claim 1,
the sound-absorbing material comprises sound-absorbing cotton positioned below and a rubber vibration-isolating pad positioned on the sound-absorbing cotton.
5. A roof cooling tower vibration and noise reduction base as claimed in claim 1,
the floor board is laid with horizontal impervious layer, which extends upwards for a certain height at the bottom beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525184.1U CN210238899U (en) | 2019-04-17 | 2019-04-17 | Vibration and noise reduction base for roof cooling tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525184.1U CN210238899U (en) | 2019-04-17 | 2019-04-17 | Vibration and noise reduction base for roof cooling tower |
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| CN210238899U true CN210238899U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920525184.1U Active CN210238899U (en) | 2019-04-17 | 2019-04-17 | Vibration and noise reduction base for roof cooling tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005111A (en) * | 2019-04-17 | 2019-07-12 | 上海建工七建集团有限公司 | A kind of roofing cooling tower vibration and noise reducing pedestal and its construction method |
| CN113338551A (en) * | 2020-09-30 | 2021-09-03 | 中国建筑第二工程局有限公司 | Steel structure roof equipment supporting system and construction method |
-
2019
- 2019-04-17 CN CN201920525184.1U patent/CN210238899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005111A (en) * | 2019-04-17 | 2019-07-12 | 上海建工七建集团有限公司 | A kind of roofing cooling tower vibration and noise reducing pedestal and its construction method |
| CN113338551A (en) * | 2020-09-30 | 2021-09-03 | 中国建筑第二工程局有限公司 | Steel structure roof equipment supporting system and construction method |
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