阅读说明：本技术 一种单端设置风亭的地铁车站环控系统 (Subway station environmental control system with wind pavilions arranged at single end ) 是由 王静伟 罗燕萍 罗辉 王迪军 朱奕豪 秦旭 李林林 于 2020-12-11 设计创作，主要内容包括：本发明公开了一种单端设置风亭的地铁车站环控系统,包括设置于车站一端的排风井、第一活塞风井、第二活塞风井、用于将所述第一活塞风井与车站隧道连接的第一风道、用于将所述第二活塞风井与车站隧道连接的第二风道、用于将所述排风井与车站公共区连接的排风风道；所述第一风道上设有第一上风道,所述第一上风道上设有第一隧道风机；所述第二风道上设有第二上风道,所述第二上风道上设有第二隧道风机；所述排风风道上设有排风风机。所述地铁车站环控系统解决了市中心车站风亭、冷却塔布置困难的问题,可集中力量拆迁车站一端设置地面风亭,减小了车站地面附属占地面积和土建投资及建设费用。(The invention discloses a subway station environment control system with a wind pavilion arranged at one end of a single end, which comprises an air exhausting well, a first piston air shaft, a second piston air shaft, a first air channel, a second air channel and an air exhausting channel, wherein the air exhausting well, the first piston air shaft and the second piston air shaft are arranged at one end of a station; a first upper air duct is arranged on the first air duct, and a first tunnel fan is arranged on the first upper air duct; a second upper air duct is arranged on the second air duct, and a second tunnel fan is arranged on the second upper air duct; and an exhaust fan is arranged on the exhaust air duct. The subway station environment control system solves the problem that the arrangement of the wind pavilions and the cooling towers in the station at the center of a city is difficult, and the ground wind pavilions can be arranged at one end of the station capable of being disassembled by concentrated force, so that the floor area occupied by the ground of the station, civil engineering investment and construction cost are reduced.)

1. A subway station environment control system with a wind pavilion at one end is characterized by comprising a wind exhausting well, a first piston wind well, a second piston wind well, a first air duct, a second air duct and a wind exhausting duct, wherein the wind exhausting well, the first piston wind well and the second piston wind well are arranged at one end of a station; a first upper air duct is arranged on the first air duct, and a first tunnel fan is arranged on the first upper air duct; a second upper air duct is arranged on the second air duct, and a second tunnel fan is arranged on the second upper air duct; and an exhaust fan is arranged on the exhaust air duct.

2. A subway station environment control system with a single-ended wind pavilion according to claim 1, wherein a connecting air channel is arranged between said first upper air channel and said second upper air channel, and said connecting air channel is provided with a first air valve.

3. A subway station environment control system with a wind pavilion at one end as claimed in claim 1, wherein a first silencer and a second silencer are arranged on the first upper air duct, and are respectively arranged at two ends of the first tunnel fan; and a second air valve is further arranged on the first air channel and is arranged below the second silencer.

4. A subway station environment control system with a wind pavilion at one end as claimed in claim 1, wherein a third silencer and a fourth silencer are arranged on the second upper air duct, and are respectively arranged at two ends of the second tunnel fan; and a third air valve is further arranged on the second upper air duct and is arranged below the fourth silencer.

5. A subway station environment control system with a single-ended wind pavilion according to claim 1, wherein a fifth silencer, a fourth air valve and a fifth air valve are further arranged on the first air duct, the fifth silencer is positioned above the first upper air duct, the fourth air valve is connected in parallel with the first upper air duct, and the fifth air valve is positioned below the first upper air duct.

6. A subway station environment control system with a single-ended wind pavilion according to claim 1, wherein a sixth silencer, a sixth air valve and a seventh air valve are arranged on the second air channel, the sixth silencer is positioned above the second upper air channel, the sixth air valve is connected with the second upper air channel in parallel, and the seventh air valve is positioned below the second upper air channel.

7. A subway station environment control system with a wind booth at one end as claimed in claim 1, wherein a seventh silencer, an eighth silencer and an exhaust air valve are further disposed on said exhaust air duct, said seventh silencer and said eighth silencer are disposed at two ends of said exhaust fan, respectively, and said exhaust air valve is disposed under said eighth silencer.

8. A subway station environment control system with a wind booth at one end according to claim 1, wherein the exhaust air duct comprises a first exhaust air duct, a second exhaust air duct, a third exhaust air duct and a fourth exhaust air duct, the first exhaust air duct and the second exhaust air duct are respectively disposed on a station tunnel, the third exhaust air duct and the fourth exhaust air duct are respectively disposed in a station public area, and one end of the third exhaust air duct is respectively connected with the first exhaust air duct and the second exhaust air duct.

9. A subway station environment control system with a wind pavilion at one end as claimed in claim 1, wherein said station public area is provided with a ventilation and air conditioning system, and air ducts of said ventilation and air conditioning system are arranged near and far.

10. A subway station environment control system with a wind pavilion at one end as claimed in claim 1, wherein a cold source device of said subway station environment control system is a buried cooling tower.

Technical Field

The invention belongs to the technical field of subway ventilation, and particularly relates to a subway station environment control system with a wind pavilion arranged at one end.

Background

With the encryption of subway line networks and the development of comprehensive development and utilization of regional land, subway stations are arranged in established areas, and the arrangement of outdoor kiosks of ventilation and air-conditioning systems is increasingly limited, including the limitation of land area, landscape requirements, environmental conditions and the like. In a ventilation and air conditioning system of a subway, an air shaft is necessary in function as a passage for ventilation of indoor and outdoor air of a tunnel and a station space. The conventional station environmental control system comprises 8 wind pavilions, the scheme of the system is high in civil engineering cost, large ground auxiliary floor areas are needed at two ends of a station, the arrangement of a station wind shaft positioned in a city center or a commercial center is very difficult, and land acquisition and removal costs are huge.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a subway station environment control system with a wind pavilion arranged at one end, which solves the problem that the wind pavilion and a cooling tower in a station at the center of a city are difficult to arrange, can concentrate strength to arrange a ground wind pavilion at one end of the station, and reduces the floor area of the station.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a subway station environment control system with a wind pavilion at one end comprises an air exhausting shaft, a first piston air shaft, a second piston air shaft, a first air channel, a second air channel and an air exhausting channel, wherein the air exhausting shaft, the first piston air shaft and the second piston air shaft are arranged at one end of a station; a first upper air duct is arranged on the first air duct, and a first tunnel fan is arranged on the first upper air duct; a second upper air duct is arranged on the second air duct, and a second tunnel fan is arranged on the second upper air duct; and an exhaust fan is arranged on the exhaust air duct.

Furthermore, a connecting air duct is arranged between the first upper air duct and the second upper air duct, and a first air valve is arranged on the connecting air duct.

Further, a first silencer and a second silencer are arranged on the first upper air duct, and the first silencer and the second silencer are respectively arranged at two ends of the first tunnel fan; and a second air valve is further arranged on the first air channel and is arranged below the second silencer.

Further, a third silencer and a fourth silencer are arranged on the second upper air duct, and the third silencer and the fourth silencer are respectively arranged at two ends of the second tunnel fan; and a third air valve is further arranged on the second upper air duct and is arranged below the fourth silencer.

Furthermore, a fifth silencer, a fourth air valve and a fifth air valve are further arranged on the first air duct, the fifth silencer is located above the first upper air duct, the fourth air valve is connected with the first upper air duct in parallel, and the fifth air valve is located below the first upper air duct.

Furthermore, a sixth silencer, a sixth air valve and a seventh air valve are arranged on the second air duct, the sixth silencer is located above the second upper air duct, the sixth air valve is connected with the second upper air duct in parallel, and the seventh air valve is located below the second upper air duct.

Furthermore, a seventh silencer, an eighth silencer and an exhaust air valve are further arranged on the exhaust air duct, the seventh silencer and the eighth silencer are respectively arranged at two ends of the exhaust fan, and the exhaust air valve is arranged below the eighth silencer.

Furthermore, the air exhaust duct comprises a first air exhaust duct, a second air exhaust duct, a third air exhaust duct and a fourth air exhaust duct, the first air exhaust duct and the second air exhaust duct are respectively arranged on the station tunnel, the third air exhaust duct and the fourth air exhaust duct are respectively arranged in the station public area, and one end of the third air exhaust duct is respectively connected with the first air exhaust duct and the second air exhaust duct.

Furthermore, a ventilation and air-conditioning system is arranged in the station public area, and air pipes of the ventilation and air-conditioning system are arranged near the far end.

Furthermore, a cold source device of the subway station environment control system adopts a buried cooling tower.

According to the invention, the station piston air shaft and the new air exhaust shaft are arranged at one end of the station tunnel in a centralized manner, 8 air pavilions contained in a conventional subway station are reduced, and no pavilion is arranged at the other end, so that the number of the air shafts, the pavilions and the fans is reduced. The subway station environment control system solves the problem that the arrangement of the wind pavilions and the cooling towers in the station at the center of a city is difficult, the ground wind pavilions can be arranged at one end of the station which can be disassembled by concentrated force, the floor area occupied by the ground of the station and civil engineering investment and construction cost are reduced, a group of wind pavilions are arranged on the ground, noise sources can be reduced, complaint risks are reduced, and social, environmental and economic benefits are obvious.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a schematic diagram of the single-ended uniform air supply of the large system of the present invention;

description of reference numerals:

1-an exhaust air shaft, 2-a first piston air shaft, 3-a second piston air shaft, 4-a first air passage, 5-a second air passage, 6-a connecting air passage, 7-a first air valve, 8-a first upper air passage, 9-a first tunnel fan, 10-a first silencer, 11-a second silencer, 12-a third silencer, 13-a fourth silencer, 14-a fifth silencer, 15-a sixth silencer, 16-a second air valve, 17-a third air valve, 18-a fourth air valve, 19-a fifth air valve, 20-a sixth air valve, 21-a seventh air valve, 22-a second upper air passage, 23-a fan, 24-a seventh exhaust silencer, 25-an eighth silencer, 26-an exhaust air valve, 27-a first exhaust air passage, 28-second air exhaust duct.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, an embodiment of the invention provides a subway station environment control system with a single-end-provided wind booth, which comprises an exhaust shaft 1, a first piston wind shaft 2, a second piston wind shaft 3, a first air duct 4 for connecting the first piston wind shaft 2 with a station tunnel, a second air duct 5 for connecting the second piston wind shaft 3 with the station tunnel, and an exhaust air duct for connecting the exhaust shaft 1 with a station public area, wherein the exhaust shaft 1 is arranged at one end of a station; the ventilating shaft and the piston ventilating shaft are arranged at one end of the station tunnel, the number of the piston ventilating shafts and the number of the fans are reduced, the problem that the arrangement of the station wind pavilions in the urban center is difficult is solved, and meanwhile the occupied area and the construction cost of the station are reduced.

A first upper air duct 8 is arranged on the first air duct 4, a first tunnel fan 9, a first silencer 10, a second silencer 11, a fifth silencer 14, a second air valve 16, a fourth air valve 18 and a fifth air valve 19 are arranged on the first upper air duct 8, the first silencer 10 and the second silencer 11 are respectively arranged at two ends of the first tunnel fan 9, the second air valve 16 is arranged below the second silencer 11, the fifth silencer 14 is arranged above the first upper air duct 8, the fourth air valve 18 is connected with the first upper air duct 8 in parallel, and the fifth air valve 19 is arranged below the first upper air duct 8; the structure can convert the air duct and reduce the noise.

A second upper air duct 22 is arranged on the second air duct 5, a second tunnel fan, a third silencer 12, a fourth silencer 13, a sixth silencer 15, a third air valve 17, a sixth air valve 20 and a seventh air valve 21 are arranged on the second upper air duct 22, the third silencer 12 and the fourth silencer 13 are respectively arranged at two ends of the second tunnel fan, the third air valve 17 is arranged below the fourth silencer 13, the sixth silencer 15 is arranged above the second upper air duct 22, the sixth air valve 20 is connected with the second upper air duct 22 in parallel, and the seventh air valve 21 is arranged below the second upper air duct 22; the exhaust air duct is provided with an exhaust fan 23, a seventh silencer 24, an eighth silencer 25 and an exhaust air valve 26, a connecting air duct 6 is arranged between the first upper air duct 8 and the second upper air duct 22, the connecting air duct 6 is provided with a first air valve 7, the seventh silencer 24 and the eighth silencer 25 are respectively arranged at two ends of the exhaust fan 23, and the exhaust air valve 26 is arranged below the eighth silencer 25. The connecting air channel and the air valve device can convert the air channels, so that air flows through different air channels. And the muffler device can reduce noise.

Further, the exhaust air duct includes a first exhaust air duct 27, a second exhaust air duct 28, a third exhaust air duct and a fourth exhaust air duct, the first exhaust air duct 27 and the second exhaust air duct 28 are respectively disposed on the station tunnel, the third exhaust air duct and the fourth exhaust air duct are respectively disposed in the station public area, and one end of the third exhaust air duct is respectively connected to the first exhaust air duct 27 and the second exhaust air duct 28. The advantage of above structure can be with the gas in the tunnel through the wind channel of airing exhaust discharge.

Furthermore, a ventilation and air-conditioning system is arranged in the station public area, and air pipes of the ventilation and air-conditioning system are arranged near the far end. The structure ensures even air supply.

Furthermore, a cold source device of the subway station environment control system adopts a buried cooling tower.

The invention discloses a working principle of a subway station environment control system with a wind pavilion arranged at one end, which comprises the following steps:

taking the left line as an example, when a train enters a station and stops, the exhaust fan starts to operate, the exhaust air valve is opened, and the exhaust air duct laid in the station tunnel starts to exhaust hot air. Taking the left line as an example, when a train enters the station, air in the tunnel is exhausted out of the station through the second air duct and the second piston air shaft; when the train leaves the station, the air outside the station flows into the tunnel through the second air duct and the second piston air shaft. And the corresponding exhaust air valve and the sixth air valve are opened in the whole process.

And if the fire disaster happens to the station tunnel, starting a smoke exhaust mode. Taking the left line as an example, the fourth air valve and the sixth air valve are closed, the second air valve, the third air valve, the first air valve and the seventh air valve are opened, the first tunnel air and the second tunnel fan are opened, and the smoke in the station is exhausted out of the station through the first air channel and the second air channel and the first piston air shaft and the second piston air shaft.

In summary, compared with the prior art, the method has the following advantages:

1. according to the subway station environment control system with the wind pavilions arranged at one end, the station piston wind shafts and the new air exhaust shafts are arranged at one end of the station tunnel in a centralized mode, 8 wind pavilions contained in a conventional subway station are reduced to 4, the wind pavilions are not arranged at the other end of the station tunnel, and the number of the wind shafts, the wind pavilions and the fans is reduced. The subway station environment control system solves the problem that the arrangement of the wind pavilions and the cooling towers in the station at the center of a city is difficult, the ground wind pavilions can be arranged at one end of the station which can be disassembled by concentrated force, the floor area occupied by the ground of the station and civil engineering investment and construction cost are reduced, a group of wind pavilions are arranged on the ground, noise sources can be reduced, complaint risks are reduced, and social, environmental and economic benefits are obvious.

2. For a station with a wind pavilion arranged at one end, the air volume of a station fan is increased, and the wind speed required by specifications when an accident occurs in the front and rear regions of the station can be ensured during blockage and fire; during normal operation, the number of the interval ventilation air exchange is reduced due to the fact that the number of the wind pavilions is reduced, and for a station with the wind pavilions arranged at one end, the length of the front interval and the rear interval is required to be not more than 2.5km so as to meet the requirement that the smoke exhaust air speed of the section of the interval is not less than 2 m/s. The piston air shafts of the front station and the rear station and the piston air shaft of the station are utilized for ventilation, so that the fresh air quantity and the ventilation times required by the specification are ensured.

3. Referring to fig. 2, the public area ventilation and air conditioning system is provided with a set of system for the near-far end public area respectively, and the near-far end air pipes are also arranged independently, so that the near-far end uniform air supply of the public area can be realized. Principle of even air supply: firstly, the air valve on the near-far end air pipe is adjusted to ensure that the air quantity on the near-far end air duct is the same; secondly, the near-far end air pipe keeps the section of the air pipe pipeline unchanged and the area F of the air outlet according to the uniform air supply principle₀But not equal to each other, but the flow coefficient of each opening and the flow formed by static pressure are ensured, so that the flow of each orifice is ensured to be equal.

Flow rate Q of each air outlet₀：

m is the flow coefficient of the orifice;

F₀-an aperture area;

v_j-air velocity, m/s, caused by the difference in static pressure inside and outside the duct;

r-air Density, kg/m³；

P_j-the static pressure, Pa, of the air in the duct.

4. The cold source equipment is arranged underground, and a buried cooling tower is adopted, so that the floor area of the ground is reduced to the maximum extent.

It should be noted that other contents of the subway station environment control system with a wind pavilion at one end disclosed by the invention can be referred to the prior art, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.