CN204646292U - Tunnel sound barrier natural ventilation equipment - Google Patents
Tunnel sound barrier natural ventilation equipment Download PDFInfo
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- CN204646292U CN204646292U CN201520299213.9U CN201520299213U CN204646292U CN 204646292 U CN204646292 U CN 204646292U CN 201520299213 U CN201520299213 U CN 201520299213U CN 204646292 U CN204646292 U CN 204646292U
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- natural ventilation
- sound barrier
- tunnel
- ventilation port
- side lower
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- 238000009423 ventilation Methods 0.000 title claims abstract description 103
- 230000004888 barrier function Effects 0.000 title claims abstract description 96
- 210000003141 lower extremity Anatomy 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 238000007731 hot pressing Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000010790 dilution Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 239000000779 smoke Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Ventilation (AREA)
Abstract
Be communicated with outdoor for existing tunnel sound barrier natural ventilation port, acoustic wave segment enters tunnel by the natural ventilation at sound barrier top, defening effect is not good, and this natural ventilation port is owing to arranging at top, fresh air and tunnel waste gas can only be introduced and discharge by same natural ventilation port, the problem that exhaust gas dilution effect is undesirable, disclose a kind of tunnel sound barrier natural ventilation equipment, this system comprises the sound barrier butting up against tunnel portal, the top of sound barrier is provided with top natural ventilation port, the bottom, both sides of sound barrier is respectively equipped with side lower part natural ventilation port, top natural ventilation port and all built-in electronic sealed valve of described side lower part natural ventilation port.Utilize the hot pressing difference and leeway that are formed between sound barrier top and two side lower part electric natural ventilation openings, realize effective tissue of air-flow in sound barrier, circulated flowing, reaches effective sound insulation, effective reduction tunnel portal temperature, exhaust gas concentration, the object that the flue gas stream under fire condition effectively spreads.
Description
Technical field
The utility model relates to field, tunnel, relates to the natural ventilation equipment of tunnel sound barrier concretely, belongs to tunnel ventilation technical field.
Background technology
Along with the development of road traffic and urban infrastructure, a large amount of Urban underground Tunnel arises at the historic moment, and the thing followed is the impact of tunnel traffic noise on hole nearby residents residential building, hospital, school etc.Tunnel portal traffic noise pollution has become the problem of environmental pollution that subjective reflection is paid close attention to the most gradually.In addition, traffic noise also constrains the development of tunnel portal neighboring regional economy to a certain extent.
At present, the method solving tunnel portal traffic noise pollution thing mainly adopts sound barrier, intercepts form can be divided into natural phonation barrier, manual construction sound barrier and Special artificial sound barrier according to sound barrier.Full-shadow type acoustic barrier has used in tunnel more and more in recent years.The use of sound barrier to tunnel, especially opposing traffic tunnel ventilation, smoke evacuation bring difficulty.Sound barrier adopts mechanical smoke extraction, can bring the increase of fire fighting system fund input, and meanwhile, part tunnel arranges fire fighting system also to a certain extent by the restriction of technical condition.Most current sound barrier adopts natural ventilation equipment, and namely arrange natural ventilation port or natural ventilation band at sound barrier top, such as patent publication No. CN 102182152 A etc., in Shanghai, new road construction tunnel, tunnel, Da Pu road are all applied this natural ventilation port.But the practical effect of this natural ventilation port is barely satisfactory.
Analysis reason is as follows: 1) this natural ventilation port is communicated with outdoor, and acoustic wave segment enters tunnel by the natural ventilation at sound barrier top, and defening effect is not good; 2) this natural ventilation port is owing to arranging at top, and when traffic congestion, in sound barrier, exhaust gas concentration significantly increases, and fresh air and tunnel waste gas can only be introduced and discharge by same natural ventilation port, and exhaust gas dilution effect is undesirable; 3) when there is vehicle fire accident in sound barrier, the natural ventilation port at sound barrier top, simultaneously as Leads to new breeze mouth and smoke vent opening, causes flow of flue gas in sound barrier chaotic, does not have positive role to evacuating personnel escape.
Utility model content
The purpose of this utility model is the natural ventilation equipment providing a kind of tunnel sound barrier, the hot pressing difference and leeway that are formed between sound barrier top and two side lower part electric natural ventilation openings can be utilized, realize effective tissue of air-flow in sound barrier, circulated flowing, reach effective sound insulation, effective reduction tunnel portal temperature, exhaust gas concentration, the object that the flue gas stream under fire condition effectively spreads.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of tunnel sound barrier natural ventilation equipment, comprise the sound barrier butting up against tunnel portal, the top of described sound barrier is provided with top natural ventilation port, the bottom, both sides of described sound barrier is respectively equipped with side lower part natural ventilation port, described top natural ventilation port and all built-in electronic sealed valve of described side lower part natural ventilation port.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, the lower limb distance ground 1.5-2.5m of described side lower part natural ventilation port is high.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, described electric closed valve door remote auto keying and/or on the spot manual opening-closing.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, the cross section of described sound barrier is arch, semicircle or rectangle.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, described top natural ventilation port and described side lower part natural ventilation port are arranged along the longitudinal direction in tunnel in banded respectively.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, described top natural ventilation port and described side lower part natural ventilation port are respectively an overall long band.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, described top natural ventilation port and described side lower part natural ventilation port are arranged by some short strip intervals respectively and are formed.
Optionally, in above-mentioned tunnel sound barrier natural ventilation equipment, shape, the size in the cross section of described sound barrier and the cross section in tunnel are identical.
From above disclosed technical scheme, compared with prior art, the natural ventilation equipment of the utility model tunnel sound barrier, both sound barrier defening effect originally can kept under tunnel traffic accidental conditions, tunnel temperature, concentration is reduced again under tunnel traffic retardance operating mode, and when fire working appears in tunnel, the smoke discharging effect under strengthening fire working, evacuates the escape environment of personnel under improving fire working.In addition, the natural ventilation equipment of described sound barrier, construction is simple, effectively can reduce construction investment, have stronger practicality.
Accompanying drawing explanation
Fig. 1 tunnel cross section schematic diagram.
Fig. 2 air distribution schematic diagram.
Fig. 3 tunnel Layout one.
Fig. 4 tunnel Layout two.
In figure: 1. sound barrier, 2. garage space, 3. overhead electric natural ventilation port, 4. side lower part electric natural ventilation opening, 5. sound barrier hole, 6. forward travel vehicle, 7. reverse driving vehicle, 8. electric closed valve door.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the tunnel sound barrier natural ventilation equipment that the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
As shown in figures 1-4, present embodiments provide a kind of tunnel sound barrier natural ventilation equipment, be applicable to opposing traffic tunnel, comprise the sound barrier 1 butting up against tunnel (not shown) hole, described sound barrier 1 is as the section of stretching out in tunnel, top and the bottom, both sides of described sound barrier 1 are respectively equipped with natural ventilation port, concrete, the top of described sound barrier 1 is provided with top natural ventilation port 3, the bottom, both sides of described sound barrier 1 is respectively equipped with side lower part natural ventilation port 4, described top natural ventilation port 3 and all built-in electronic sealed valve 8 of described side lower part natural ventilation port 4.Described garage space 2 is positioned at described sound barrier 1.Forward travel vehicle 6 and reverse driving vehicle 7 are in garage space 2.
Optionally, in described tunnel sound barrier natural ventilation equipment, described top natural ventilation port 3 and side lower part natural ventilation port 4 are all arranged in band shape.In order to enlarged top portion natural ventilation port to greatest extent 3 and the draught area of side lower part natural ventilation port 4, described top natural ventilation port and described side lower part natural ventilation port are respectively an overall long band, as shown in Figure 3.Certainly, under the strength conditions considering sound barrier 1, described top natural ventilation port and described side lower part natural ventilation port also can be arranged by some short strip intervals respectively and be formed, as shown in Figure 4, compare the form of overall long band, although decrease certain draught area, improve the intensity of sound barrier 1.
Optionally, in described tunnel sound barrier natural ventilation equipment, the cross section of described sound barrier 1 can be arch, semicircle or rectangle, in the present embodiment, and the cross section semicircular in shape of described sound barrier 1.
Optionally, in described tunnel sound barrier natural ventilation equipment, the lower limb distance ground 1.5-2.5m of the described natural ventilation port 4 of described sound barrier 1 liang of side lower part is high.The lower limb of described natural ventilation port 4 is too high, is unfavorable for the inflow of fresh air, and the lower limb of described natural ventilation port 4 is too low, can not play the effect of security protection.
In order to the more convenient opening and closing controlling described electric closed valve door more timely, described electric closed valve door 8 remote auto keying and/or on the spot manual opening-closing.
Optionally, in described tunnel sound barrier natural ventilation equipment, the cross section of described sound barrier 1 and the shape in the cross section in described tunnel, size are identical, so that both slitless connections.
Please continue to refer to Fig. 1 to Fig. 4, the using method of the tunnel sound barrier natural ventilation equipment of the present embodiment is as follows:
Under tunnel traffic accidental conditions, described top natural ventilation port 3 on sound barrier 1 all keeps closed condition with the electric closed valve door 8 in described side lower part natural ventilation port 4, to play good sound insulation effect, now the major function of sound barrier 1 is the sound insulation noise abatement under tunnel traffic accidental conditions.
Under tunnel traffic retardance operating mode, when tunnel sound barrier 1 interior space temperature, exhaust gas concentration exceed standard, long-range or control the electric closed valve door 8 opening top natural ventilation port 3 on sound barrier 1 on the spot immediately, simultaneously long-range or control the electric closed valve door 8 opening two side lower part natural ventilation ports 4 of sound barrier 1 on the spot, inside and outside sound barrier 1 leeway and hot pressing difference effect under, form the Air Distribution of two side lower part air intakes, top air draft in sound barrier 1, realize the reduction of temperature and exhaust gas concentration in sound barrier 1 under retardance traffic operating mode.Thus, both can reduce the temperature of tunnel portal, the exhaust gas concentration of tunnel portal discharge can be reduced again, be conducive to the formation of the good ecological environments of Sensitive Buildings such as hole nearby residents residential building, hospital, school.
Along with the reduction gradually of temperature in sound barrier 1 and exhaust gas concentration, can in sound barrier 1 temperature and exhaust gas concentration up to standard, and keep, after 30 minutes, closing electric closed valve door 8, recover accidental conditions.
When there is fire condition in tunnel sound barrier 1, long-range or control the electric closed valve door 8 opened in the top natural ventilation port 3 of sound barrier 1 on the spot immediately, simultaneously long-range or control the electric closed valve door 8 opened in two side lower part natural ventilation ports 4 of sound barrier 1 on the spot, the fresh air that temperature is lower enters in sound barrier 1 by side lower part natural ventilation port 4, after the flue gas concentration of dilution personnel escape region, under hot pressing function, carry flue gas stream discharged by top natural ventilation port 3, the temperature in personnel escape region and flue gas concentration are minimized and get rid of.This natural ventilation equipment is conducive to the escape and evacuation of personnel under fire working, has remarkable good effect to the construction of fire-fighting personal security fire extinguishing environment simultaneously.
In sum, the utility model beneficial effect is as follows:
The natural ventilation equipment of the utility model tunnel sound barrier, both sound barrier defening effect originally can kept under tunnel traffic accidental conditions, tunnel temperature, concentration is reduced again under tunnel traffic retardance operating mode, and when fire working appears in tunnel, smoke discharging effect under strengthening fire working, evacuates the escape environment of personnel under improving fire working.In addition, the natural ventilation equipment of described sound barrier, construction is simple, effectively can reduce construction investment, have stronger practicality.
Foregoing description is only the description to the utility model preferred embodiment; any restriction not to the utility model scope; any change that the those of ordinary skill in the utility model field does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (8)
1. a tunnel sound barrier natural ventilation equipment, it is characterized in that, comprise the sound barrier butting up against tunnel portal, the top of described sound barrier is provided with top natural ventilation port, the bottom, both sides of described sound barrier is respectively equipped with side lower part natural ventilation port, described top natural ventilation port and all built-in electronic sealed valve of described side lower part natural ventilation port.
2. tunnel sound barrier natural ventilation equipment as claimed in claim 1, is characterized in that, the lower limb distance ground 1.5-2.5m of described side lower part natural ventilation port is high.
3. tunnel sound barrier natural ventilation equipment as claimed in claim 1, is characterized in that, described electric closed valve door remote auto keying and/or on the spot manual opening-closing.
4. tunnel sound barrier natural ventilation equipment as claimed in claim 1, it is characterized in that, the cross section of described sound barrier is arch, semicircle or rectangle.
5. as the tunnel sound barrier natural ventilation equipment in claim 1-4 as described in any one, it is characterized in that, described top natural ventilation port and described side lower part natural ventilation port are arranged along the longitudinal direction in tunnel in banded respectively.
6. tunnel sound barrier natural ventilation equipment as claimed in claim 5, it is characterized in that, described top natural ventilation port and described side lower part natural ventilation port are respectively an overall long band.
7. tunnel sound barrier natural ventilation equipment as claimed in claim 5, it is characterized in that, described top natural ventilation port and described side lower part natural ventilation port are arranged by some short strip intervals respectively and are formed.
8. tunnel sound barrier natural ventilation equipment as claimed in claim 1, is characterized in that, shape, the size in the cross section of described sound barrier and the cross section in tunnel are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299213.9U CN204646292U (en) | 2015-05-11 | 2015-05-11 | Tunnel sound barrier natural ventilation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299213.9U CN204646292U (en) | 2015-05-11 | 2015-05-11 | Tunnel sound barrier natural ventilation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646292U true CN204646292U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520299213.9U Expired - Fee Related CN204646292U (en) | 2015-05-11 | 2015-05-11 | Tunnel sound barrier natural ventilation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847396A (en) * | 2015-05-11 | 2015-08-19 | 上海市政工程设计研究总院（集团）有限公司 | Natural ventilation method of tunnel sound barrier |
-
2015
- 2015-05-11 CN CN201520299213.9U patent/CN204646292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847396A (en) * | 2015-05-11 | 2015-08-19 | 上海市政工程设计研究总院（集团）有限公司 | Natural ventilation method of tunnel sound barrier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |