CN111962410A - Ventilation fire-fighting type totally-enclosed sound barrier - Google Patents
Ventilation fire-fighting type totally-enclosed sound barrier Download PDFInfo
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- CN111962410A CN111962410A CN202010771643.1A CN202010771643A CN111962410A CN 111962410 A CN111962410 A CN 111962410A CN 202010771643 A CN202010771643 A CN 202010771643A CN 111962410 A CN111962410 A CN 111962410A
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- sound barrier
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Business, Economics & Management (AREA)
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention provides a ventilation fire-fighting type totally-enclosed sound barrier, which is characterized in that: the device comprises a steel frame support, a low-melting-point sound barrier unit and a ventilation, noise elimination and smoke exhaust device; the steel frame support consists of an upright post support and an arc-shaped top frame, and the bottom end of the upright post support is fixedly connected with an independent foundation embedded part or an embedded part in a track foundation; the low-melting-point sound barrier unit and the ventilation, noise elimination and smoke exhaust device are fixedly connected with the steel frame support through connecting parts; the low-melting-point sound barrier unit is arranged on one side or two sides of the fully-closed sound barrier or forms the whole fully-closed sound barrier except the ventilation, noise elimination and smoke discharge device. It has realized the totally closed sound barrier of acoustics in the true physical meaning, and the smoke exhaust structural style includes that the low temperature fusing board of top smoke exhaust structure and both sides fuses the back and discharges fume, provides a more convenient fire control mode of putting out a fire, directly puts out a fire in both sides when taking place the conflagration.
Description
Technical Field
The invention relates to a totally-enclosed sound barrier, in particular to a totally-enclosed sound barrier suitable for ventilation and fire control.
Background
Currently, sound barriers have been used as the most effective means for noise control of railway, urban rail transit and highway traffic, and especially in recent years, cities develop rapidly, and rail transit lines passing through urban areas have great influence on the urban sound environment. The main structural types of sound barriers include: the noise reduction effect of the vertical sound barrier can reach 6-10dB generally, the noise reduction effect of the semi-closed sound barrier can reach 9-15dB generally, and when the noise barrier with the noise reduction of 15dB or above is required, a fully-closed structure is required. The totally-enclosed sound barrier is required to be provided with a natural smoke outlet which is not less than 5% of the horizontal projection area of the interval due to the fire protection requirement of a line, so that the totally-enclosed sound barrier is directly prevented from realizing the acoustic totally-enclosed in the real physical sense, the noise reduction effect of a high-rise building is limited, and the problem of noise influence complaint is also caused. The noise reduction of the totally-enclosed sound barrier can reach 15-20dB usually, but the noise reduction of 5% of natural smoke outlets is 0-5dB, so that the whole sound insulation of the totally-enclosed sound barrier is reduced by about 4-8dB, and the noise reduction at the positions of the smoke outlets is lower.
Adopt the totally closed sound barrier of true physical meaning will certainly increase the degree of difficulty of fire control and the unobstructed nature of discharging fume that put out a fire, the fire control of circuit is put out a fire and the security requirement of discharging fume will more difficult reach, must design more convenient sound barrier structure and the material that satisfies the fire control and put out a fire and the requirement of discharging fume. As can be seen from the existing cases, technical researches and patents, related researches are also carried out in China at present, for example, ventilation noise elimination shutters are designed at the top, but the scheme is not adopted in the totally-enclosed sound barriers implemented in China at present, namely, the noise elimination shutters have the advantages of large self weight, limited noise elimination amount and large resistance. Secondly, there is objection to the smoke evacuation performance. Certainly, another important reason is that after the top exhaust port is sealed, even if the exhaust port is designed, smoke can be exhausted, but when a fire happens to the totally-closed sound barrier, rescue is difficult to implement by an external fire-fighting facility, the fire-fighting potential safety hazard is very large, and the fire risk in a larger scale is very easy to cause.
Therefore, the study on the top smoke outlet of the totally-enclosed sound barrier not only has the function of silencing (sound absorption or sound insulation), but also can ensure that the top ventilation opening has good smoke exhaust performance when a fire occurs; meanwhile, because the totally-enclosed sound barrier is of an enclosed structure, when a fire disaster occurs, people can be evacuated in a short time, a fire-fighting facility can be ensured to extinguish the fire in time, and potential safety hazards causing larger fire risks are eliminated, so that the fire-fighting facility is very necessary and urgent.
Disclosure of Invention
The invention needs to solve a technical problem of realizing the acoustic full-sealing in real physical meaning and increasing the noise elimination quantity of the acoustic full-sealing at the ventilation position; secondly, a light structure which meets the smoke exhaust requirement at the top of the totally-enclosed sound barrier is designed, so that smoke can be safely exhausted when a fire disaster occurs in an actual engineering project; thirdly, the totally closed sound barrier design is more convenient fire control mode of putting out a fire to when taking place the conflagration, thereby let outside fire control facility can convenient rescue, thereby reduce the risk that the conflagration enlarges on the one hand, on the other hand makes the scene accident smoke volume discharge more easily, reduces the personnel injury that arouse because the flue gas is too much, moreover makes the personnel on scene can safe timely sparse.
A ventilation fire-fighting type totally-enclosed sound barrier comprises a steel frame support 1, a low-melting-point sound barrier unit 4 and a ventilation, noise elimination and smoke discharge device 7; the steel frame support 1 consists of an upright post support 2 and an arc-shaped top frame 3, and the bottom end of the upright post support 2 is fixedly connected with an independent foundation embedded part or an embedded part in a track foundation; the low-melting-point sound barrier unit 4, the ventilation, noise elimination and smoke exhaust device 7 and the steel frame support 1 are fixedly connected by a connecting part 8; the low-melting-point sound barrier unit 4 is arranged on one side or two sides of the totally-enclosed sound barrier or forms a totally-enclosed sound barrier whole except the ventilation, noise elimination and smoke discharge device 7.
Further, the ventilation fire-fighting type totally-enclosed sound barrier comprises a steel frame support 1, a low-melting-point sound barrier unit 4, a transparent sound barrier unit 5, a sound barrier unit 6 and a ventilation noise-elimination smoke-discharging device 7; the steel frame support 1 consists of an upright post support 2 and an arc-shaped top frame 3, and the bottom end of the upright post support 2 is fixedly connected with an independent foundation embedded part or an embedded part in a track foundation; the low-melting-point sound barrier unit 4, the transparent sound barrier unit 5, the sound barrier unit 6 and the ventilation, noise elimination and smoke exhaust device 7 are fixedly connected with the steel frame support 1 by using a connecting part 8; the low-melting-point sound barrier unit 4 is arranged on one side or two sides of the totally-enclosed sound barrier; the transparent sound barrier unit 5 is arranged at the top or the side of the totally-enclosed sound barrier; the sound barrier unit 6 is arranged at the top or the side of the totally-enclosed sound barrier.
Further, the connecting component 8 includes a bolt, a weld, a spring clip, a fixed baffle, a movable baffle, and other prior art fixed connecting components.
Further, the transparent sound barrier unit 5 includes a laminated glass sound-proof screen, a transparent acrylic board sound-proof screen or a transparent glass window.
Further, the ventilation, noise elimination and smoke exhaust device 7 comprises a light high-noise elimination sheet 9 and a frame connecting structural member 10, wherein the light high-noise elimination sheet 9 is fixedly connected with the frame connecting structural member 10, and the fixed connection comprises riveting, bolt connection, welding or bonding. The light high-noise-reduction sheet 9 comprises a light high-noise-reduction or high-noise-reduction sheet.
Further, the low melting point sound barrier unit 4 comprises a low melting point particle sound barrier 11 and a low melting point skeleton 12; the low-melting-point skeleton 12 is used for fixedly connecting the low-melting-point particle sound barrier 11 to the upright post bracket 2, and the connection mode is various connection modes in the prior art, including but not limited to connection parts such as connection plates, baffles and bolts, which are made of low-melting-point materials.
Furthermore, the low-melting-point sound barrier unit 4 is connected with the steel frame support 1 through a bolt and a low-melting-point support plate 13, one end of the low-melting-point support plate 13, the flange of the steel frame support 1 and the low-melting-point sound barrier 4 are fixed through a bolt, and the other end of the low-melting-point support plate 13 and the low-melting-point sound barrier 4 are fixed through a bolt; sealing beads 14 are provided between adjacent low melting point sound barrier units.
The ventilation, noise elimination and smoke evacuation device is arranged at the top of a totally-enclosed sound barrier, is light in weight (the weight of the device is not more than 60kg/m 3), meets the requirements of normal ventilation and accident ventilation at ordinary times, is small in ventilation resistance, is connected with an arc-shaped support (fixed modes such as bolt connection, welding, spring clamping, fixed baffle plates or movable baffle plates and the like), and has a noise elimination amount interval of 3-15 dB.
The low melting point sound barrier unit of the invention has a lower melting point (the optional range of the fusing temperature range is 150 ℃ C. and 300 ℃ C., and can be determined according to specific temperature values). When a fire disaster happens, the low-melting-point sound barrier unit is fused by heating (including fusing of the self barrier plate or fusing of the self framework), or the connecting plate is fused to lose support, or the connecting bolt is fused to directly fall off or the single-side hinge is fixed to fall off, so that when the fire fighting is guaranteed, the convenience of smoke exhaust and ventilation can be greatly increased due to the increase of the air inlet area after the falling off, and the injury of personnel caused by too much smoke is reduced.
When the conflagration breaing out, low melting point sound barrier is heated fusing, or the connecting plate fusing loses support, or after connecting bolt fusing directly drops off, the fire control medium of fire engine can directly spray the burning things which may cause a fire disaster, makes the initial stage conflagration obtain effective control, and the fire control potential safety hazard reduces, causes the more large-scale conflagration risk to reduce. The problem that the fire-fighting medium of the fire engine can not directly spray the fire source is solved. People can be evacuated and evacuated in time through the position of the fallen low-melting-point sound barrier.
Wherein the combustion performance of the low-melting-point sound barrier unit is A-level non-combustible; the toxicity of the smoke accords with the safety level two; environmental performance grade E0, no formaldehyde, Total Volatiles (TVOC) of the sheet no greater than 0.5mg/m2 h.
The invention is not limited to the important application fields of railways and highways, and also comprises ventilation device systems for bridge fields, industry, fire protection, civil use and commercial use, closed plants and the like.
Has the advantages that:
the invention realizes the acoustic totally-enclosed sound barrier in the real physical sense, and the smoke exhaust structure comprises a top smoke exhaust structure and smoke exhaust after the low-temperature fusing plates on the two sides are fused. Provides a more convenient fire-fighting mode, and when a fire breaks out, the fire is directly extinguished on two sides. On one hand, external fire-fighting facilities can conveniently rescue, and fire-fighting media of the fire truck can directly spray fire sources, so that the risk of fire expansion is reduced; on the other hand, the smoke quantity of the site accident is easier to discharge, and the injury of people caused by excessive smoke is reduced. And people can be evacuated and evacuated in time through the position of the fallen low-melting-point sound barrier.
Drawings
FIG. 1: a section view of a ventilation fire-fighting type totally-enclosed sound barrier;
FIG. 2: a ventilation, noise elimination and smoke exhaust device;
FIG. 3: a low melting point sound barrier unit diagram;
FIG. 4: one of the connection diagrams of low melting point sound barrier units.
Detailed Description
The present invention will be further explained below for better understanding of the objects, technical solutions and technical effects of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
As shown in fig. 1, the ventilation fire-fighting type totally-enclosed sound barrier comprises a steel frame support 1, a low-melting-point sound barrier unit 4 and a ventilation, noise elimination and smoke discharge device 7; the steel frame support 1 consists of an upright post support 2 and an arc-shaped top frame 3, and the bottom end of the upright post support 2 is fixedly connected with an independent foundation embedded part or an embedded part in a track foundation; the low-melting-point sound barrier unit 4, the ventilation, noise elimination and smoke exhaust device 7 and the steel frame support 1 are fixedly connected through a connecting part 8.
The low-melting-point sound barrier unit 4 is arranged on one side or two sides of the totally-enclosed sound barrier or forms a totally-enclosed sound barrier whole except the ventilation, noise elimination and smoke discharge device 7.
The connecting part 8 comprises a bolt, a welding part, a spring clamp, a fixed baffle, a movable baffle and other fixing connecting parts in the prior art.
Example 2
As shown in fig. 1, a ventilation fire-fighting type totally-enclosed sound barrier comprises a steel frame support 1, a low-melting-point sound barrier unit 4, a transparent sound barrier unit 5, a sound barrier unit 6 and a ventilation, noise elimination and smoke discharge device 7; the steel frame support 1 consists of an upright post support 2 and an arc-shaped top frame 3, and the bottom end of the upright post support 2 is fixedly connected with an independent foundation embedded part or an embedded part in a track foundation; the low-melting-point sound barrier unit 4, the transparent sound barrier unit 5, the sound barrier unit 6, the ventilation, noise elimination and smoke exhaust device 7 and the steel frame support 1 are fixedly connected through a connecting part 8.
The transparent sound barrier unit 5 is arranged at the top or the side of the totally-enclosed sound barrier; the sound barrier unit 6 is arranged at the top or the side of the totally-enclosed sound barrier.
The connecting part 8 comprises a bolt, a welding part, a spring clamp, a fixed baffle, a movable baffle and other fixing connecting parts in the prior art.
The transparent sound barrier unit 5 comprises a laminated glass sound insulation screen, a transparent acrylic plate sound insulation screen or a transparent glass window.
Example 3
Further, the air conditioner is provided with a fan,
as shown in fig. 2, the ventilation, noise elimination and smoke evacuation device 7 includes a light-weight high noise elimination (sound insulation or sound absorption) sheet 9 and a frame connection structural member 10, wherein the light-weight high noise elimination (sound insulation or sound absorption) sheet 9 and the frame connection structural member 10 are fixedly connected, and the fixed connection includes riveting, bolting, welding or bonding.
Example 4
Further, the air conditioner is provided with a fan,
as shown in fig. 3, the low melting point sound barrier unit 4 includes a low melting point particulate sound barrier 11 and a low melting point skeleton 12; the low-melting-point skeleton 12 is used for fixedly connecting the low-melting-point particle sound barrier 11 to the upright post bracket 2, and the connection mode is various connection modes in the prior art, including but not limited to connection parts such as connection plates, baffles and bolts, which are made of low-melting-point materials. When a fire occurs, the connecting parts in the low-melting-point framework 12 can be fused by themselves, so that the low-melting-point framework loses support and falls off.
Example 5
Further, in the present invention,
as shown in fig. 4, the connection mode of the low melting point sound barrier unit is disclosed, and the inventor states here that the embodiment in example 4 is only disclosed by way of example, and is not limited to the disclosure of the only connection mode.
The low-melting-point sound barrier unit 4 is connected with the steel frame support 1 through a bolt and a low-melting-point support plate 13, one end of the low-melting-point support plate 13, the flange of the steel frame support 1 and the low-melting-point sound barrier 4 are fixed through a bolt, and the other end of the low-melting-point support plate 13 and the low-melting-point sound barrier 4 are fixed through a bolt; sealing beads 14 are provided between adjacent low melting point sound barrier units.
The above examples are intended to be illustrative of possible embodiments of the invention only and are not intended to limit the scope of the invention, which is intended to be covered by the claims unless there is any departure from the scope of the invention which is equivalent to practice or modification thereof, or to apply the invention to sound barriers which are not totally enclosed but which are otherwise required for fire protection. The shape of the device, or one of the modes of ventilation, noise elimination, smoke exhaust, fire extinguishing and the like are all the objects protected by the patent.
Claims (6)
1. A totally closed sound barrier of ventilation fire control type which characterized in that: the device comprises a steel frame support, a low-melting-point sound barrier unit and a ventilation, noise elimination and smoke exhaust device; the steel frame support consists of an upright post support and an arc-shaped top frame, and the bottom end of the upright post support is fixedly connected with an independent foundation embedded part or an embedded part in a track foundation; the low-melting-point sound barrier unit and the ventilation, noise elimination and smoke exhaust device are fixedly connected with the steel frame support through connecting parts; the low-melting-point sound barrier unit is arranged on one side or two sides of the fully-closed sound barrier, or the fully-closed sound barrier except the ventilation, noise elimination and smoke discharge device is integrally formed.
2. A fire-ventilation type totally-enclosed sound barrier as claimed in claim 1, wherein: the low-melting-point sound barrier unit, the transparent sound barrier unit, the sound barrier unit and the ventilation, noise elimination and smoke exhaust device are fixedly connected with the steel frame support by using connecting parts; the low-melting-point sound barrier unit is arranged on one side or two sides of the totally-enclosed sound barrier; the transparent sound barrier unit is arranged at the top or the side of the totally-enclosed sound barrier; the sound barrier unit is arranged at the top or the side of the totally-enclosed sound barrier.
3. A totally enclosed sound barrier of the fire-fighting type according to claim 1 or 2, wherein: the connecting part comprises a bolt, a welding part, a spring clamp, a fixed baffle and a movable baffle fixed connecting part.
4. A fire-ventilation type totally-enclosed sound barrier as claimed in claim 2, wherein: the transparent sound barrier unit comprises a laminated glass sound insulation screen, a transparent acrylic plate sound insulation screen or a transparent glass window.
5. A totally enclosed sound barrier of the fire-fighting type according to claim 1 or 2, wherein: the ventilation, noise elimination and smoke exhaust device comprises a light high-noise elimination sheet and a frame connecting structural member, wherein the light high-noise elimination sheet is fixedly connected with the frame connecting structural member.
6. A totally enclosed sound barrier of the fire-fighting type according to claim 1 or 2, wherein: the low-melting-point sound barrier unit comprises a low-melting-point particle sound barrier and a low-melting-point framework; the low-melting-point framework is used for fixedly connecting the low-melting-point particle sound barrier to the upright post bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010771643.1A CN111962410A (en) | 2020-08-04 | 2020-08-04 | Ventilation fire-fighting type totally-enclosed sound barrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010771643.1A CN111962410A (en) | 2020-08-04 | 2020-08-04 | Ventilation fire-fighting type totally-enclosed sound barrier |
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| CN111962410A true CN111962410A (en) | 2020-11-20 |
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| CN202010771643.1A Pending CN111962410A (en) | 2020-08-04 | 2020-08-04 | Ventilation fire-fighting type totally-enclosed sound barrier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114525743A (en) * | 2022-03-11 | 2022-05-24 | 中铁二院工程集团有限责任公司 | Sound barrier smoke exhaust sound absorber and closed sound barrier |
| CN117488715A (en) * | 2023-12-28 | 2024-02-02 | 山西军昊实业有限公司 | Totally-enclosed sound barrier with top capable of being provided with external object |
-
2020
- 2020-08-04 CN CN202010771643.1A patent/CN111962410A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114525743A (en) * | 2022-03-11 | 2022-05-24 | 中铁二院工程集团有限责任公司 | Sound barrier smoke exhaust sound absorber and closed sound barrier |
| CN114525743B (en) * | 2022-03-11 | 2023-06-02 | 中铁二院工程集团有限责任公司 | Sound barrier smoke exhaust sound absorber and closed sound barrier |
| CN117488715A (en) * | 2023-12-28 | 2024-02-02 | 山西军昊实业有限公司 | Totally-enclosed sound barrier with top capable of being provided with external object |
| CN117488715B (en) * | 2023-12-28 | 2024-03-29 | 山西军昊实业有限公司 | Totally-enclosed sound barrier with top capable of being provided with external object |
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