RAILROAD PLATFORM DOOR ARRANGEMENT

Abstract

A platform door arrangement with a traffic route (1), a railroad platform (2), a partially raised partition (3) between the platform (2) and the traffic route (1) and platform doors (31) arranged in the partition wall (3). The traffic route (1) and the platform (2) are arranged within a housing having a ceiling (22), or within a subway. An air exchange occurs between the traffic route (1) and the platform (2) via a free space (30) between the partially raised partition (3) and the ceiling (22). The free space (30) is closed off in an air permeable manner from above the partially raised partition (3) up to the ceiling (22).

Claims

1. A railroad platform door arrangement with a traffic route (1), a railroad platform (2), a partially raised partition (3) between the platform (2) and the traffic route (1) and platform doors (31) arranged in the partition wall (3), wherein the traffic route (1) and the platform (2) are arranged within a housing having a ceiling (22), or within a subway, wherein an air exchange occurs between the traffic route (1) and the platform (2) via a free space (30) between the partially raised partition (3) and the ceiling (22), and wherein the free space (30) is closed off in an air permeable manner from above the partially raised partition (3) up to the ceiling (22).

2. The railroad platform door arrangement according to claim 1, wherein the air-permeable closure (4) comprises grille elements.

3. The railroad platform door arrangement according to claim 2, wherein the grille elements are arranged above each platform door (31).

4. The railroad platform door arrangement according to claim 2, wherein the grille elements (40) are ventilation grilles with profiled guide plates.

5. The railroad platform door arrangement according to claim 2, wherein the grille elements (40) are controllably closable ventilation grilles (44).

6. The railroad platform door arrangement according to claim 5, wherein the closable ventilation grille (44) has an actuator (42) which actively closes the grille element (40) when a sensor signal is present, wherein the closable ventilation grille (44) is open in the rest state.

7. The railroad platform door arrangement as claimed in claim 2, wherein the air-permeable closure (4) has air-impermeable closure elements (43) alternatingly adjacent the grille elements (40) above the partially raised partition wall (3) up to the ceiling (22).

8. The railroad platform door arrangement as claimed in claim 1, wherein, in addition to the air-permeable closure (4), latticed air openings are provided in the partition (3) above the partially raised partition (3).

9. The railroad platform door arrangement according to claim 2, wherein lights, signs, loudspeakers, cameras and/or monitors are arranged on the grille elements (40) and/or the closure elements of the air-permeable closure.

10. The railroad platform door arrangement according to claim 1, wherein the platform doors (31) are also anchored to the ceiling (22) by means of construction elements (32).

Description

[0022] An exemplary embodiment of the invention is described in detail below with reference to the appended figures.

[0023] Therein:

[0024] FIG. 1 is a cross-sectional view of a platform door arrangement in a subway station and

[0025] FIG. 2 is a view of the platform door arrangement shown in FIG. 1.

[0026] FIG. 1 shows a cross-section of a subway station with a traffic route 1 in the form of railroad tracks in a tunnel. In the vicinity of the stop, a platform 2 with a platform edge 21 is provided adjacent the traffic lane 1. A partition 3 is provided between the platform 2 and the traffic route 1 near the platform edge 21. The dividing wall 3 divides the subway station into a traffic area 10 and a platform area 20. The partition wall 3 has a corresponding fit to the platform doors 31 which are aligned on the traffic route, here the tracks for subway trains, which open only when subway train assigned the subway station is stopped at the platform 2 and its doors open. In this case, the doors of the subway train are in coincidence with the open platform doors 31 of the partition 3. Before the train leaves, the railroad platform doors 31 close, as well as the doors of the subway train U which is represented here only in dash-lines.

[0027] The partition wall 3 is designed as a so-called partially raised partition, so that a clearance 30 forms above the partition 3, but is bridged by means of construction elements 32 with a ceiling 22 of the subway stop area. This results in a high degree of strength of the partition wall 3, since pressure fluctuations are introduced into the floor of the platform 2 as well as into the ceiling 22 of the underground tunnel in the earth. The two-sided support at the top and at the bottom of the partition 3 allows for a more delicate and lighter, thus more cost-effective construction. The construction elements 32 are made of electrically conductive material and serve simultaneously for grounding purposes.

[0028] However, the free space 30 above the partition 3 is closed air-permeably. In the exemplary embodiment illustrated in FIG. 2, the air-impermeable closure 4 consists of grille elements 40, which are arranged, for example, above the platform doors 31, respectively. In the exemplary embodiment illustrated in FIG. 1, the grille element 40 consists of a plurality of baffle plates or profiled guide plates 41 arranged one above the other horizontally and which, in addition to the grille-like structure, guide the airflow permitted by the grille element 40. In a further embodiment, the profiled guide plates 41 can be designed such that they can be adjusted via an actuator so that the grille element forms a closable ventilation grille.

[0029] In addition, above the traffic area 10 in the ceiling 22 of the underground tunnel, a smoke extraction system 5 is provided, with a vent or fan 51 and an air duct 52 for the subway system. In the event of any fire events, smoke gases can be withdrawn from the platform area 20 via the grille elements 40 or, as the case may be, the closable ventilation grilles 44 in open position, and, of course, from the traffic area 10.

[0030] Further, there is shown in FIG. 2 the partition 3 between the railroad platform 2 and the ceiling 22, the free space 30 above the partially raised partition 3 above the platform doors 31 being provided with grille elements 40 between the stiffening construction elements 32. The area between the grille elements 40 is provided with an air-impermeable closure element 43. When the platform doors 31 are closed, air exchange L can thus only take place via the grille elements 40 above the platform doors 31.

[0031] By the deliberate provision of an air exchange L between the traffic area 10 and the platform area 20 above the partition 3, it is ensured on the one hand that pressure differences can be compensated for quickly in these two areas and that, especially in the event of a fire, smoke extraction systems 5 arranged in the traffic area 10 are also sufficient in order to extract any smoke gases which may occur in the railroad platform zone 20. These are sucked from the platform area 20 by the air-permeable closure 4 above the partition 3 into the traffic area 10 and then to the smoke extraction system 5.

[0032] On the other hand, the closing of the open space above the partition 3 by means of grille elements 40 or lockable ventilation grilles 44 permits a secure separation between the platform area 20 and the traffic area 10 so that no persons can climb over the partition 3 from the platform 2 into the traffic area 10. No foreign bodies or only very small foreign bodies can enter the traffic area 10 from the platform area 20 through the grille elements 40 or lockable ventilation grilles 44. A contamination of the track area and the associated risk of fire is thus largely avoided. In addition, the cleaning cost for the track area of the stops as well as the adjacent stretch of tunnels is reduced.

REFERENCE LIST

[0033] 1 Traffic route [0034] 10 Traffic area [0035] 2 Platform [0036] 20 Platform area [0037] 21 Platform edge [0038] 22 Ceiling [0039] 3 Partition wall [0040] 30 Space [0041] 31 Platform door [0042] 32 Construction element [0043] 4 Air-permeable closure [0044] 40 Grille element [0045] 41 Baffle plate or profiled guide plate [0046] 42 Actuator [0047] 43 Air-impermeable closure element [0048] 44 Closeable ventilation grille [0049] 5 Smoke extraction system [0050] 51 Fans [0051] 52 Air duct [0052] L Air exchange [0053] U Subway train