CN102418546A - Pneumatic ventilation structure for underpass - Google Patents
Pneumatic ventilation structure for underpass Download PDFInfo
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- CN102418546A CN102418546A CN2011103011748A CN201110301174A CN102418546A CN 102418546 A CN102418546 A CN 102418546A CN 2011103011748 A CN2011103011748 A CN 2011103011748A CN 201110301174 A CN201110301174 A CN 201110301174A CN 102418546 A CN102418546 A CN 102418546A
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- 238000009423 ventilation Methods 0.000 title abstract description 22
- 238000009434 installation Methods 0.000 claims description 12
- 231100000206 health hazard Toxicity 0.000 abstract 1
- 239000003570 air Substances 0.000 description 91
- 239000000463 material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012080 ambient air Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The invention relates to a pneumatic ventilation structure for an underpass, and belongs to the field of traffic engineering. The building structure of the conventional underpass is not changed, an air collection and air inlet device and a pneumatic air extracting device are arranged on plane awnings at left and right underground entryways, so that ventilation of the underpass is realized; the plane awnings at the left and right underground entryways have straight top plate structures and are supported by a support upright post and a transverse support pipe; the air collection and air inlet device is arranged in the center of a plane top plate at the left underground entryway; and the pneumatic air extracting device is arranged in the center of a plane top plate at the right underground entryway. The structure is air-powered, energy-saving and environment-friendly, does not need any power device, realizes natural ventilation of the underpass, and solves the problems of poor air environment, dirty air and mildew-wet walls in the underpass, the health hazard of people entering the underpass, and the like.
Description
Technical field
The present invention relates to pass the pneumatic air-exchanging structure of street underground passage under a kind of, belong to the traffic engineering field.
Background technology
Underground pedestrian passageway does not receive the restriction of ground level road width, and sleety weather uses safer, and is less to ground landscape and traffic impact.But in long underground pedestrian passageway; Because people residence time long (as do small business etc.), particularly old man and weakling have rational Design of ventilation if throw; Ventilation is not enough; Underground passage air environment certainly will be relatively poor, and that air becomes is dirty, wall is mould wet, and the people's in the admission passage health is worked the mischief; In addition, also can influence it and use, like the safety of electrical equipment in the passage etc.So how under the investment of minimum and operating cost condition, solve the ventilating problem of underground pedestrian passageway.This is a problem demanding prompt solution.
General middle following several kinds of schemes (" building heat-energy air conditioner " Municipal Design and Research Inst. Nanjing City that adopts on the present engineering; Xie Ninghan; 2001 years the 4th phases, p47): 1. the mode that the most extensively adopts is no wind pipe type induced draught, is to utilize the ventilation fan to carry out forced ventilation at the passage middle position; Its shortcoming is to want consumes electric power, and there is noise in motor.2. blast is very little to the influence that underground pedestrian passageway ventilates, and can ignore.So, how to take measures, create the condition of ventilating of helping with blast? One of measure; Increase the access area; Strengthen the effect of blast and hot pressing, make under identical blast and hot pressing function, to have produced bigger ventilation motive force, its shortcoming is that construction costs increases; Two of measure increases the hole wall height, and with the pattern such as streamlined that the hole barricade is designed to help ventilating, utilizes it to introduce bigger ventilation as the ventilation deflector; Three of measure, according to the long-term prevailing wind in locality always be provided with the hole towards, using population has the long time towards the windward side; Four of measure reduces the exit and entrance gradient, makes to block near the hole lessly, reduces flowing resistance, increases ventilation.Above-mentioned four measures are common to exist a shortcoming exactly because building structure has symmetry, makes and can only improve the air flow condition in underground passage two end entrance sources, little to the change of passage centre.How to realize efficient, unpowered, the low-cost ventilation of underground passage, its relevant patent is actually rare.
Summary of the invention
The purpose of this invention is to provide a kind of building structure that can realize down passing the pneumatic ventilation of street underground passage, relatively poor to solve underground passage air environment, air is dirty, wall mould wet, to problems such as the people's in the admission passage health work the mischief.
Technical scheme of the present invention is: pass underground passage pneumatic air-exchanging structure in street under a kind of; Do not change existing building structure of passing the street underground passage down, realize the ventilation of passing the street underground passage down through installation collection wind inlet duct and pneumatic air extractor on the plane canopy 1 at underground entrance passage place, the left and right sides.
Pass the left underground entrance passage 2 of the pneumatic air-exchanging structure of street underground passage and the plane canopy 1 at right underground entrance passage 7 places under said and all adopt straight top board structure or other structure, come supporting plane canopy 1 through support post 12 and cross binding pipe 11.At left underground entrance passage 2 place flat top central authorities installation collection wind inlet ducts, the pneumatic air extractor of right underground entrance passage 7 places flat top central authorities installation.
The installation site of said collection wind inlet duct and pneumatic air extractor can exchange.
Said collection wind inlet duct is made up of arc air gathering plate 2, blast pipe 3, air inlet transverse tube 9, blast pipe air intake duct 10, left side backplate 18.Arc air gathering plate 2 constitutes both wings, is connected fixing with left side backplate 18.Air inlet transverse tube 9 laterally is installed on the plane canopy 1 of below of arc air gathering plate 2, and pouring waterproof bonding material in place, slit makes it fixing and do not seep water.Air inlet transverse tube 9 is provided with blast pipe air intake duct 10, and air inlet transverse tube 9 lower ends central authorities are communicated with blast pipe 3, blast pipe 3 lower ends export with under pass street underground passage 4 and be communicated with.Arc air gathering plate 2 can be one or more pairs of and symmetrical placement.
Said pneumatic air extractor is made up of V-type curved panel 14, exhausting groove 15, exhausting transverse tube 16, exhausting scavenge trunk 17, right side backplate 19.Be provided with the V-type curved panel 14 that two symmetries are placed, be connected fixing with right side backplate 19.Exhausting transverse tube 16 laterally is installed on the plane canopy 1 of V-arrangement cambered plate 14 belows; Exhausting transverse tube 16 is provided with exhausting groove 15; Exhausting scavenge trunk 17 1 ends are communicated with exhausting transverse tube 16; The other end is to extending below, and is divided into two-way and enters into down and pass street underground passage 4 entrance, and two lower port are near passing the ground of street underground passage 4 and extend internally one section down.
Said exhausting transverse tube 16 embeds and is placed on the plane canopy 1 of V-arrangement cambered plate 14 belows, and is higher than the plane of plane canopy 1.
Operating principle of the present invention is: utilize air-flow different, pressure is also different, and air-flow is big more, and pressure is more little.When the street was crossed in wind, the right and left underground entrance passage had air-flow to get into simultaneously, was provided with collection wind inlet duct on left underground entrance passage 2 flat top; And be provided with pneumatic air extractor on right underground entrance passage 7 top boards, make that when air flow stream is crossed passage passing street underground passage 4 exists differential pressure of atmospheric pressure down; The air pressure on the left side is big, and the air pressure on the right is little, make air can under pass street underground passage 4 left sides and flow to the right; Form the convection current air, pass street underground passage ventilation under realizing.
When collection wind inlet duct was crossed in wind, a side of the arc air gathering plate 2 of two both wings symmetry poured into air-flow in the air inlet transverse tube 9 through blast pipe air intake duct 10 along cambered surface, and air inlet transverse tube 9 is to extending below, and air draught is sent into down passed in the street underground passage 4.Consider rainy day, current might enter into down through blast pipe air intake duct 10 and pass in the street underground passage 4, cause passage moist.Air inlet transverse tube 9 laterally is placed on the plane canopy 1, and pouring waterproof bonding material in place, slit makes it to fix and do not seep water.So just keep off current outside air inlet transverse tube 9, avoid passing in the street underground passage 4 under the rainwater inflow.
When pneumatic air extractor was crossed in wind, air-flow poured into pneumatic groove 6 along cambered surface and flows out, and the structure of the V-arrangement cambered plate 14 of depression makes the air velocity at pneumatic groove 6 places become big, and air pressure diminishes.Because the air pressure at pneumatic groove 6 places less than ambient air pressure, constitutes differential pressure of atmospheric pressure, form the convection current air.Exhausting transverse tube 16 is installed in pneumatic groove 6 belows, and exhausting transverse tube 16 tops are exhausting grooves 15, are depression, so just in exhausting transverse tube 16, deflate.And the other end of exhausting scavenge trunk 17 is to extending below; Being divided into two-way enters into down and passes street underground passage 4 entrance; Two approaching ground of passing street underground passage 4 down of lower port; And in passage, extend one section, and so just foul atmosphere in the underground passage is extracted out, pass street underground passage ventilation under realizing.Exhausting transverse tube 16 embeds and is placed on the plane canopy 1, is higher than the plane, so just keeps off current outside exhausting transverse tube 16, avoids passing in the street underground passage 4 under the rainwater inflow.
The invention has the beneficial effects as follows: with wind is power, has realized the natural ventilation that time passes the street underground passage need not any power set also its civil structure for a change, energy-conserving and environment-protective.It is relatively poor to have solved underground passage air environment, air is dirty, wall mould wet, to problems such as the people's in the admission passage health work the mischief.
Description of drawings
Fig. 1 is a vertical view of the present invention;
Fig. 2 collects wind inlet duct master sectional view for the present invention;
Fig. 3 is an air inlet pipe sketch map of the present invention;
Fig. 4 is the present invention left side underground passage inlet A-A sectional view;
Fig. 5 is the pneumatic air extractor master of a present invention sectional view;
Fig. 6 is an exhaust tube sketch map of the present invention;
Fig. 7 is the right underground passage inlet of the present invention B-B sectional view;
Fig. 8 is master's sectional view of the present invention;
Each label is among the figure: 1: plane canopy, 2: left underground entrance passage, 3: blast pipe, 4: pass the street underground passage, 5 down: exhaust column; 6: pneumatic groove, 7: right underground entrance passage, 8: wind collection slot, 9: air intake transverse tube, 10: the blast pipe air intake duct; 11: cross binding pipe, 12: support post, 13: underground passage entrance steps, 14:V shape cambered plate, 15: the exhausting groove; 16: exhausting transverse tube, 17: exhausting scavenge trunk, 18: left side backplate, 19: the right side backplate.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described further, but content of the present invention is not limited to said scope.
Embodiment 1: shown in Fig. 1-8; Pass underground passage pneumatic air-exchanging structure in street under a kind of; Do not change existing building structure of passing the street underground passage down, realize the ventilation of passing the street underground passage down through installation collection wind inlet duct and pneumatic air extractor on the plane canopy 1 at underground entrance passage place, the left and right sides.
Pass the left underground entrance passage 2 of the pneumatic air-exchanging structure of street underground passage and the plane canopy 1 at right underground entrance passage 7 places under said and all adopt straight top board structure, support through support post 12 and cross binding pipe 11.At left underground entrance passage 2 place flat top central authorities installation collection wind inlet ducts, the pneumatic air extractor of right underground entrance passage 7 places flat top central authorities installation.
Said collection wind inlet duct is made up of arc air gathering plate 2, blast pipe 3, air inlet transverse tube 9, blast pipe air intake duct 10, left side backplate 18.Arc air gathering plate 2 constitutes both wings, is connected fixing with left side backplate 18.Air inlet transverse tube 9 laterally is installed on the plane canopy 1 of below of arc air gathering plate 2, and pouring waterproof bonding material in place, slit makes it fixing and do not seep water.Air inlet transverse tube 9 is provided with blast pipe air intake duct 10, and air inlet transverse tube 9 lower ends central authorities are communicated with blast pipe 3, blast pipe 3 lower ends export with under pass street underground passage 4 and be communicated with.Arc air gathering plate 2 is a pair of and symmetrical placement.
Said pneumatic air extractor is made up of V-type curved panel 14, exhausting groove 15, exhausting transverse tube 16, exhausting scavenge trunk 17, right side backplate 19.Be provided with the V-type curved panel 14 that two symmetries are placed, be connected fixing with right side backplate 19.Exhausting transverse tube 16 laterally is installed on the plane canopy 1 of V-arrangement cambered plate 14 belows; Exhausting transverse tube 16 is provided with exhausting groove 15; Exhausting scavenge trunk 17 1 ends are communicated with exhausting transverse tube 16; The other end is to extending below, and is divided into two-way and enters into down and pass street underground passage 4 entrance, and two lower port are near passing the ground of street underground passage 4 and extend internally one section down.
Said exhausting transverse tube 16 embeds and is placed on the plane canopy 1 of V-arrangement cambered plate 14 belows, and is higher than the plane of plane canopy 1.
Operating principle of the present invention is: utilize air-flow different, pressure is also different, and air-flow is big more, and pressure is more little.When the street was crossed in wind, the right and left underground entrance passage had air-flow to get into simultaneously, was provided with collection wind inlet duct on left underground entrance passage 2 flat top; And be provided with pneumatic air extractor on right underground entrance passage 7 top boards, make that when air flow stream is crossed passage passing street underground passage 4 exists differential pressure of atmospheric pressure down; The air pressure on the left side is big, and the air pressure on the right is little, make air can under pass street underground passage 4 left sides and flow to the right; Form the convection current air, pass street underground passage ventilation under realizing.
When collection wind inlet duct was crossed in wind, a side of the arc air gathering plate 2 of two both wings symmetry poured into air-flow in the air inlet transverse tube 9 through blast pipe air intake duct 10 along cambered surface, and air inlet transverse tube 9 is to extending below, and air draught is sent into down passed in the street underground passage 4.Consider rainy day, current might enter into down through blast pipe air intake duct 10 and pass in the street underground passage 4, cause passage moist.Air inlet transverse tube 9 laterally is placed on the plane canopy 1, and pouring waterproof bonding material in place, slit makes it to fix and do not seep water.So just keep off current outside air inlet transverse tube 9, avoid passing in the street underground passage 4 under the rainwater inflow.
When pneumatic air extractor was crossed in wind, air-flow poured into pneumatic groove 6 along cambered surface and flows out, and the structure of the V-arrangement cambered plate 14 of depression makes the air velocity at pneumatic groove 6 places become big, and air pressure diminishes.Because the air pressure at pneumatic groove 6 places less than ambient air pressure, constitutes differential pressure of atmospheric pressure, form the convection current air.Exhausting transverse tube 16 is installed in pneumatic groove 6 belows, and exhausting transverse tube 16 tops are exhausting grooves 15, are depression, so just in exhausting transverse tube 16, deflate.And the other end of exhausting scavenge trunk 17 is to extending below; Being divided into two-way enters into down and passes street underground passage 4 entrance; Two approaching ground of passing street underground passage 4 down of lower port; And in passage, extend one section, and so just foul atmosphere in the underground passage is extracted out, pass street underground passage ventilation under realizing.Exhausting transverse tube 16 embeds and is placed on the plane canopy 1, is higher than the plane, so just keeps off current outside exhausting transverse tube 16, avoids passing in the street underground passage 4 under the rainwater inflow.
Embodiment 2: shown in Fig. 1-8; Pass underground passage pneumatic air-exchanging structure in street under a kind of; Do not change existing building structure of passing the street underground passage down, realize the ventilation of passing the street underground passage down through installation collection wind inlet duct and pneumatic air extractor on the plane canopy 1 at underground entrance passage place, the left and right sides.
Pass the left underground entrance passage 2 of the pneumatic air-exchanging structure of street underground passage and the plane canopy 1 at right underground entrance passage 7 places under said and all adopt straight top board structure, support through support post 12 and cross binding pipe 11.At left underground entrance passage 2 place flat top central authorities installation collection wind inlet ducts, the pneumatic air extractor of right underground entrance passage 7 places flat top central authorities installation.
The installation site of said collection wind inlet duct and pneumatic air extractor can exchange.
Said collection wind inlet duct is made up of arc air gathering plate 2, blast pipe 3, air inlet transverse tube 9, blast pipe air intake duct 10, left side backplate 18.Arc air gathering plate 2 constitutes both wings, is connected fixing with left side backplate 18.Air inlet transverse tube 9 laterally is installed on the plane canopy 1 of below of arc air gathering plate 2, and pouring waterproof bonding material in place, slit makes it fixing and do not seep water.Air inlet transverse tube 9 is provided with blast pipe air intake duct 10, and air inlet transverse tube 9 lower ends central authorities are communicated with blast pipe 3, blast pipe 3 lower ends export with under pass street underground passage 4 and be communicated with.Arc air gathering plate 2 is two pairs and symmetry placement.
Said pneumatic air extractor is made up of V-type curved panel 14, exhausting groove 15, exhausting transverse tube 16, exhausting scavenge trunk 17, right side backplate 19.Be provided with the V-type curved panel 14 that two symmetries are placed, be connected fixing with right side backplate 19.Exhausting transverse tube 16 laterally is installed on the plane canopy 1 of V-arrangement cambered plate 14 belows; Exhausting transverse tube 16 is provided with exhausting groove 15; Exhausting scavenge trunk 17 1 ends are communicated with exhausting transverse tube 16; The other end is to extending below, and is divided into two-way and enters into down and pass street underground passage 4 entrance, and two lower port are near passing the ground of street underground passage 4 and extend internally one section down.
Said exhausting transverse tube 16 embeds and is placed on the plane canopy 1 of V-arrangement cambered plate 14 belows, and is higher than the plane of plane canopy 1.
Claims (6)
1. pass the pneumatic air-exchanging structure of street underground passage under one kind; All adopt straight top board structure on the straight canopy (1) that left side underground entrance passage (2) and right underground entrance passage (7) are located; It is characterized in that: come supporting plane canopy (1) through support post (12) and cross binding pipe (11); Locate flat top central authorities at left underground entrance passage (2) collection wind inlet duct is installed, right underground entrance passage (7) is located flat top central authorities pneumatic air extractor is installed.
2. pass underground passage pneumatic air-exchanging structure in street under according to claim 1, it is characterized in that: the installation site of said collection wind inlet duct and pneumatic air extractor can exchange.
3. pass underground passage pneumatic air-exchanging structure in street under according to claim 1, it is characterized in that: said collection wind inlet duct is made up of arc air gathering plate (2), blast pipe (3), air inlet transverse tube (9), blast pipe air intake duct (10), left side backplate (18); Arc air gathering plate (2) constitutes both wings; Be connected fixing with left side backplate (18); Air inlet transverse tube (9) laterally is installed on the plane canopy (1) of below of arc air gathering plate (2); Air inlet transverse tube (9) is provided with blast pipe air intake duct (10), and air inlet transverse tube (9) lower end central authorities are communicated with blast pipe (3), blast pipe (3) lower end export with under pass street underground passage (4) and be communicated with.
4. pass underground passage pneumatic air-exchanging structure in street under according to claim 3, it is characterized in that: said arc air gathering plate (2) can be one or more pairs of and symmetrical placement.
5. pass underground passage pneumatic air-exchanging structure in street under according to claim 1, it is characterized in that: said pneumatic air extractor is made up of V-type curved panel (14), exhausting groove (15), exhausting transverse tube (16), exhausting scavenge trunk (17), right side backplate (19); Be provided with the V-type curved panel (14) that symmetry is placed; Be connected fixing with right side backplate (19); Exhausting transverse tube (16) laterally is installed on the plane canopy (1) of V-arrangement cambered plate (14) below; Exhausting transverse tube (16) is provided with exhausting groove (15), and exhausting scavenge trunk (17) one ends are communicated with exhausting transverse tube (16), and the other end is to extending below; Be divided into two-way and enter into down and pass street underground passage (4) entrance, two lower port are near passing the ground of street underground passage (4) and extend internally one section down.
6. pass underground passage pneumatic air-exchanging structure in street under according to claim 5, it is characterized in that: said exhausting transverse tube (16) embeds on the plane canopy (1) that is placed on V-arrangement cambered plate (14) below, and is higher than the plane of plane canopy (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103011748A CN102418546A (en) | 2011-10-09 | 2011-10-09 | Pneumatic ventilation structure for underpass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103011748A CN102418546A (en) | 2011-10-09 | 2011-10-09 | Pneumatic ventilation structure for underpass |
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| Publication Number | Publication Date |
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| CN102418546A true CN102418546A (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103011748A Pending CN102418546A (en) | 2011-10-09 | 2011-10-09 | Pneumatic ventilation structure for underpass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244167A (en) * | 2013-05-02 | 2013-08-14 | 中邮建技术有限公司 | Manhole forced ventilation construction method and manhole forced ventilation curtain |
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| US3824911A (en) * | 1971-12-16 | 1974-07-23 | I Janelid | Ventilation of a tunnel, mine adit or the like |
| CN1289878A (en) * | 2000-09-20 | 2001-04-04 | 岳阳市人民防空办公室 | Substructure with directional natural ventilation |
| CN2628925Y (en) * | 2003-04-27 | 2004-07-28 | 孙东行 | Indoor ventilator |
| CN101660824A (en) * | 2009-09-08 | 2010-03-03 | 曹清 | Energy-saving environment-friendly ventilation system |
| CN102200022A (en) * | 2011-04-20 | 2011-09-28 | 杭州行者工业产品设计事务所 | Tunnel ventilation system |
| CN202284478U (en) * | 2011-10-09 | 2012-06-27 | 昆明理工大学 | Pneumatic ventilation structure for street-cross underground passage |
-
2011
- 2011-10-09 CN CN2011103011748A patent/CN102418546A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3824911A (en) * | 1971-12-16 | 1974-07-23 | I Janelid | Ventilation of a tunnel, mine adit or the like |
| CN1289878A (en) * | 2000-09-20 | 2001-04-04 | 岳阳市人民防空办公室 | Substructure with directional natural ventilation |
| CN2628925Y (en) * | 2003-04-27 | 2004-07-28 | 孙东行 | Indoor ventilator |
| CN101660824A (en) * | 2009-09-08 | 2010-03-03 | 曹清 | Energy-saving environment-friendly ventilation system |
| CN102200022A (en) * | 2011-04-20 | 2011-09-28 | 杭州行者工业产品设计事务所 | Tunnel ventilation system |
| CN202284478U (en) * | 2011-10-09 | 2012-06-27 | 昆明理工大学 | Pneumatic ventilation structure for street-cross underground passage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244167A (en) * | 2013-05-02 | 2013-08-14 | 中邮建技术有限公司 | Manhole forced ventilation construction method and manhole forced ventilation curtain |
| CN103244167B (en) * | 2013-05-02 | 2015-09-30 | 中邮建技术有限公司 | Manhole shaft forced ventilation construction method and manhole shaft forced ventilation cloth curtain |
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Application publication date: 20120418 |