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Wind shelters and subway station on the cooling tower of the problem set

Forward, how to reduce the Subway on the urban environment and the impact of the urban landscape has been more and more attention to the construction unit, but also learn from successful experiences abroad. One form of exposure to low air pavilion in Guangzhou, Shenzhen, Shanghai, Beijing and other places have tried and application of the subway. The more air pavilion set in the road green belt, the height of the lower, directly on the square in Figure 3 on the hood-type air side open air pavilion,[link widoczny dla zalogowanych], covered with steel mesh grille, decorative wall using a variety of materials, greatly reducing the the impact on the urban landscape has become the highlight in the subway. El dwarf open air pavilion in the Guangzhou Metro, examples of successful application of the Shenzhen Metro in Figure 4. Figure 4, exposure to low wind Pavilion Metro 4.2 Arrangement of the cooling tower cooling tower to reduce the impact on the urban landscape, reduce operating noise, the industry has been engaged in the relentless product technology research, such as ultra-low noise cooling tower, no fan cooling towers, closed loop cooling towers and other products have been very mature. Due to cooling efficiency, volume, cost and other factors, the application in the field of rail transport is still the conventional contact-based ultra-low noise cooling towers; and the way the layout has been to explore unconventional methods and applications These methods are: a sunken, semi-sunken, duct inlet type, such as several hidden green. The so-called sunken, semi-sunken arrangement of the cooling tower is installed in a sink pits, the pit into the air space around the left to ask, and cooling towers of the air dome to be installed to prevent air back. Small pit covered with the cooling towers of steel mesh grille. This layout can be placed in the green belt in the cooling tower in Guangzhou, Shenzhen Metro is widely used as shown in Figure 5. Although this method reduces the installation of the cooling tower height, but likely to cause air return; the same time, the need for air intake, a large sink hole needs to be done often. Railway Survey and Design RAILWAYSURVEYANDDESlGN2oo6 (5) 15 Railway Survey and Design Figure 5 subway sink cooling tower inlet air cooling duct tabu set refers to the cooling towers installed in the basement or underground duct at one end, leaving only the ground the cooling tower outlet, into the wind with the upper part of the basement or the use of wind IzI inlet side into the wind so the height difference. This layout has a good visual concealment, the air will not return phenomenon. Can effectively reduce the noise. In addition to a large area suitable for square, green, etc., but still suitable for the slopes of both tunnels, etc.. Shown in Figure 6. Figure 6, the inlet air cooling duct Tabu Green Home schematic layout is hidden in the flower beds or the green one and a half to do the basement below, which will be installed in the cooling tower, the height difference by flower beds set side air intake hole, leaving only the flower beds above the cooling the outlet to the tower. This layout has a good visual concealment, not prone to air reflow phenomenon, and of great benefit in reducing noise. Particularly suitable for large-scale square, green spaces, flower beds,[link widoczny dla zalogowanych], etc.. Figure 7. Figure 7 green home hidden schematic cooling Tabb 4.3 need to consider exposure to low air pavilion with first need to consider the flood problem, the kiosks directly connected wind tunnel, once flooded the losses, so this style booths flood control along the height must be higher than 1:3. The second is the dust problem, the city's cleanliness and the foreign country there is a big gap between the open air pavilion set IzI short positions to be elected in the greenbelts. Last is the need to set the bottom in the wind Pavilion submersible sewage pump shaft exclude rain; wind kiosks and consider measures to eliminate the noise. By sunken, semi-sink cooling Tabu home should be considered when the main cooling tower of hot air return of heat dissipation. Green hidden cooling air inlet duct tabu set, the main need to consider equipment installation, maintenance path,[link widoczny dla zalogowanych], space and other issues, followed by coordination with landscape design, consider the water discharge, security and other issues. 5 Conclusion booths set up in the wind issue, first, to fully optimize the design of tunnel ventilation system to reduce the size of surface wind Pavilion. Second, select the appropriate location using a flexible approach, for a large area of green space near the station, first of all consider the exposure to low air pavilion; the crowded downtown area of the station,[link widoczny dla zalogowanych], can be considered part of the use of hood type air pavilion. If the conditions and development in building construction, the air shaft to the podium through the roof. The layout of the cooling tower, cooling tower should take full account of the noise, heat, water drift reasonable choice of the environmental impact of the arrangement of the cooling tower in order to achieve harmony with the surrounding environment.

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