JP2015218972A - Underground station air conditioning method and underground station air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an air conditioning load at underground station under effective utilization of low enthalpy train wind left in the prior art without giving any trouble to safety in vehicle transportation.SOLUTION: This invention relates to an air conditioning system for underground station where platform door devices 1, 2 are installed. Louvers 21 acting as opening or closing member that can be opened or closed are arranged at opening parts 13 above spandrel walls 6, 7 parting a platform 3 and railway segments 4. When cooling operation is being carried out and enthalpy of tunnel air is lower than enthalpy of a space at the platform 3, blades 21a of the louvers 21 are released to feed positively train wind accompanied by its running onto the platform 3 and in turn when enthalpy of tunnel air is higher than that of the platform, the blades 21a of the louvers 21 are closed to restrict the flowing-in of the train wind into the space of the platform 3.

Description

  The present invention relates to a platform air conditioning method and an air conditioning system in an underground station of a subway.

  Unlike underground stations, underground stations on subways need to be ventilated because they are semi-open spaces. In recent years, in order to improve the comfort of passengers, there are an increasing number of cases in which the cooling system is operated to cool the platform in the summer and intermediate periods.

  However, at the underground station, the air volume of the train wind (so-called piston wind) flowing into the platform as the vehicle travels reaches several times the supply air volume necessary for ventilation. In many current underground stations, even if this train wind flows into the platform part, it is processed as it is as an air conditioning load of the platform part.

  For this reason, when a large amount of train wind having a higher enthalpy than the design conditions of the platform part flows in the cooling operation in summer or in the intermediate period, a huge air conditioning load is required. Such high enthalpy in the train wind is thought to be caused by heat dissipation from the vehicle equipment itself, exhaust heat from the cooling equipment mounted on the vehicle, and an increase in the number of trains.

  On the other hand, recently, from the viewpoint of preventing passengers from falling, there are an increasing number of underground stations where a movable platform door device generally called a platform door is installed in a portion facing the track portion side of the platform. Among them, the so-called full-screen platform door device is used, and at underground stations that almost completely shield the track and platform, the influence of the train wind can be reduced by blocking the flow of airflow between the platform and the track. It is thought to suppress and enhance the air conditioning effect.

  The technique disclosed in Patent Document 1 is applied to a full-screen type platform door device installed between the floor and ceiling of such a platform, and is along the longitudinal direction of the platform. A ventilation duct which is provided and constitutes an upper part of the platform door device, a ventilation opening which is provided in the duct and opens to the platform side, and air which is provided in the duct and is controlled by the control device and operated. The air conditioner is configured so that cold air is sent from the air conditioner to the platform through the duct and the vent.

  On the other hand, in Patent Document 2, an openable / closable door is installed on the track to prevent wasteful discharge of warm air and cold air from the vicinity of the end of the platform into the tunnel outside the platform area. It is proposed to improve the efficiency of air conditioning.

JP 2002-89916 A JP 2012-217353 A

  By the way, the enthalpy of the train wind is not always higher than the design condition of the platform part, and may be lower than the design condition of the platform part. For example, the use of regenerative brakes has reduced heat dissipation from the power-saving vehicle equipment itself, the cooling equipment mounted on the vehicle has stopped operating, the number of operations is low, and many times during rush hours. The enthalpy of the train wind may be lower than the design conditions of the platform part depending on conditions such as the platform part being crowded by passengers.

  However, since the technology of Patent Document 1 closes the side of the platform that faces the track, it cannot be used even when the enthalpy of the train wind is lower than the design conditions of the platform as described above. . Therefore, there are further points to be improved regarding energy saving.

  Further, when applying the technique of Patent Document 1 to a station where an existing platform door at a so-called waist height position (also referred to as a movable platform fence) is installed, a large-scale repair is required. Moreover, since the obstacle called a door is originally installed on a track about patent documents 2, there is a problem on the safety of operation of vehicles.

  The present invention has been made in view of the above points, and does not give any trouble to the safety of the operation of the vehicle, and effectively uses the low-enthalpy train wind that has been neglected in the past. The purpose is to solve this problem.

In order to achieve the above object, the present invention provides an air conditioning method for an underground station that reduces the air conditioning load of the underground station where the platform door device is installed.
When cooling operation is performed for an underground station, when the enthalpy of the air in the tunnel is lower than the enthalpy of the platform of the underground station,
From the upper opening area of the waist wall separating the track portion and the platform in the platform door device, the train wind accompanying the running of the vehicle is introduced into the platform,
When air-conditioning operation is carried out for an underground station, when the enthalpy of the air in the tunnel is higher than the enthalpy of the platform of the underground station,
In the platform door device, the upper opening area of the waist wall that separates the track portion and the platform is closed to suppress the train wind accompanying the traveling of the vehicle from flowing into the platform.
Here, the enthalpy of the air in the tunnel may be the enthalpy of the air in the tunnel in all sections of the underground tunnel, or may be the enthalpy of the air in the tunnel section divided into predetermined sections. Here, the predetermined section is defined as a tunnel section between a station and a station, a plurality of tunnel sections between stations, a section between a station and a station (for example, the central portion), and from the platform end to the section. It may be the enthalpy of the air in the tunnel section.

  Furthermore, in the winter season, on the basis of the temperature in the tunnel, the temperature / humidity, or the temperature of the outside air, the upper opening area of the waist wall separating the track portion and the platform in the platform door device is closed, and the train accompanying the traveling of the vehicle You may make it suppress that a wind flows in into the said platform.

  In addition, while the vehicle is stopped on the platform, the upper opening area of the waist wall that separates the track portion and the platform in the platform door device is closed to prevent high-temperature air from the vehicle from flowing into the platform. May be.

  According to another aspect, the present invention provides an air conditioning system suitable for carrying out the air conditioning method described above, wherein an opening is formed above the waist wall separating the track portion and the platform in the platform door device, and the opening An opening / closing member that can freely open and close the opening is provided in the part.

In this case, the opening of the space formed above the opening / closing door in the platform door device may be provided with another opening / closing member that can open and close the opening.
Examples of other opening / closing members include a shutter and a louver.

  According to yet another aspect, the present invention is an air conditioning system for an underground station where a platform door device is installed, wherein an opening is formed in a partition wall separating the track portion and the platform in the platform door device, The opening is provided with an opening / closing member capable of opening and closing the opening.

  Examples of the opening / closing member include a shutter and a louver.

  In addition, a sensor for measuring the temperature or temperature / humidity in the tunnel is provided in the tunnel near the platform end, and a sensor for measuring the temperature or temperature / humidity of the platform is provided in the platform. Based on this, the opening and closing of the opening and closing member may be controlled.

  Furthermore, a sensor for measuring the temperature or temperature / humidity in the tunnel is provided in the tunnel near the platform end, and a sensor for measuring the temperature or temperature / humidity of the platform is provided on the platform. Based on the above, the opening and closing of the opening and closing member and the other opening and closing member may be controlled.

  According to the present invention, it is possible to effectively use a train wind having a low enthalpy that has been neglected in the past without any hindrance to the safety of vehicle operation, and to reduce the air conditioning load of the underground station.

It is explanatory drawing which shows typically the underground station air-conditioning system concerning embodiment from a track direction, and shows a mode that a rail vehicle is stopping at a station. It is explanatory drawing which showed typically the underground station air conditioning system concerning embodiment by seeing a track | orbit side from a platform. It is explanatory drawing which showed typically the underground station air conditioning system concerning embodiment by planar view. It is explanatory drawing which shows typically the underground station air conditioning system concerning embodiment from a track direction, and shows the mode of the station in which the rail vehicle is passing through the inside of a tunnel.

  Hereinafter, an embodiment of the present invention will be described. FIG. 1 schematically shows an underground station air conditioning system according to the embodiment as viewed from the track direction, and FIG. 2 is an explanatory view of the track side as seen from the platform. In this example, the present invention is applied to an underground station where existing so-called waist-high platform door devices 1 and 2 are employed.

  That is, waist walls 6 and 7 are installed at both ends in the width direction of the platform 3 of the underground station so as to separate the platform 3 from the track portions 4 and 5. The waist walls 6 and 7 have the same configuration, and the waist wall 6 will be described here. The waist wall 6 has a height from the waist to the chest of a general adult, for example, about 1.1 m from the floor, and is installed at predetermined intervals. An opening / closing door 10 is provided between the waist walls 6 and 6. The opening / closing door 10 slides in the lateral direction (longitudinal direction of the platform), and when the passenger F gets in and out of the vehicle 11, it slides and is accommodated in the waist wall 6 to ensure the passenger F's lifting space. Yes.

  On the upper side of the waist wall 6, appropriate frame bodies 12 are provided at predetermined intervals, and an opening 13 is formed. In this example, the upper part of the frame 12 is fixed to the ceiling 14 of the platform.

  The opening 13 is provided with a louver 21 as an opening / closing member. In the louver 21, a plurality of elongated slats 21a arranged in the horizontal direction are arranged in parallel in the height direction. Of course, the wing plate 21a may be arranged in the vertical direction and in parallel to the horizontal direction. Furthermore, instead of such a louver, a shutter or a door that slides in the vertical direction or the horizontal direction may be employed.

  The louver 21a of the louver 21 employed in this example can be rotated by driving a motor (not shown) or the like to close or open the opening 13, and the rotation angle. Thus, the aperture ratio of the opening 13 can be changed.

As shown in FIG. 3, sensors 31 and 32 for measuring temperature and humidity in the tunnel are provided in the tunnel near the end of the platform 3, and the detection results from these sensors 31 and 32 are sent to the control device C. Is output. It should be noted that the installation location and the number of the sensors 31 and 32 in the tunnel can be arbitrarily set according to the situation. Similarly, on the platform 3, a sensor 33 for detecting temperature and humidity or temperature and humidity is installed. The detection result from the sensor 33 is output to the control device C.
The control device C is also input with the operation status of the air conditioner 34 that is responsible for air conditioning in the underground station, further information such as temperature and humidity on the platform 3, the approach status of the vehicle 11, and the stop status on the platform 3. . Based on the input information, the control device C controls the opening and closing, the opening degree, and the like of the louver 21a of the louver 21 as compared with, for example, predetermined temperature and humidity conditions on the platform 3. It has become.

  The air conditioning system according to the embodiment is configured as described above. Next, an example of the operation will be described.

  For example, when the air conditioner 34 is in cooling operation in summer or intermediate period, when the enthalpy of the air in the tunnel is lower than the enthalpy of the platform 3 (that is, the enthalpy of the space on the platform 3), as shown in FIG. The opening 13 is opened so that the louver 21a of the louver 21 is opened. As a result, a train wind (so-called piston flow) due to traveling of the vehicle 11 flows into the platform 3 from the opening 13 and the opening at the top of the opening / closing door 10, and the cooling load of the air conditioner 34 is reduced.

  Conversely, when the enthalpy of the air in the tunnel is higher than the enthalpy of the platform 3, the opening 13 is closed by closing the wing plate 21 a of the louver 21 as shown in FIG. 1. As a result, the train wind due to the traveling of the vehicle 11 remains inflow from the opening at the top of the opening / closing door 10, and the cooling load of the air conditioner 34 is also reduced.

  By the way, when the vehicle 11 is stopped on the platform 3, brake heat is generated from the vehicle 11, and a large amount of heat is radiated from the mounted outdoor unit to generate a high-temperature air flow around the vehicle 11. Therefore, even in such a case, as shown in FIG. 1, by closing the slat 21a of the louver 21, it is possible to prevent these high-temperature air from flowing into the platform 3 from the opening 13, and accordingly, the cooling load. Is alleviated.

  Furthermore, when the vehicle 11 departs from the platform 3, the entire underground station becomes negative pressure. Therefore, also in this case, by closing the louver 21a of the louver 21, the negative pressure of the entire underground station can be alleviated, so that the concourse and the platform 3 can be passed from the ground through the entrance / exit of the station and the gap between the station buildings. The amount of air flowing into the can be reduced. Accordingly, in summer, the amount of high-temperature air on the ground flowing into the underground station or the first-floor concourse portion can be reduced, and the air conditioning load can be reduced accordingly.

On the other hand, in winter, based on the detection results from the sensors 31, 32, 33, when the comfort on the platform 3 is impaired due to the inflow of the train wind, for example, high-temperature and high-humidity air or low-temperature and low-humidity train wind is generated on the platform 3. When it is determined that the air flows into the inside, the louver 21a of the louver 21 may be controlled to be closed. When the control to close the louver 21a of the louver 21 is performed as described above, the ground air (cold air) flows into the concourse section on the ground floor from the entrance / exit of the station or the gap between the station buildings, as in the summer. Therefore, the heating load can be reduced.
The reason why the sensors 31 and 32 are installed in the vicinity of the tunnels of the upper and lower track portions 4 and 5 is that it is assumed that the enthalpy may be different between the upper and lower lines.

  As described above, according to the air conditioning system according to the embodiment, the air conditioning load on the platform can be reduced throughout the year, thereby reducing the size of the air conditioning equipment. Of course, since it is not necessary to install equipment related to the air conditioning system on the track portions 4 and 5, the vehicle travel is not affected at all and the safety of the vehicle operation is ensured.

In comparison between the enthalpy of the air in the tunnel and the enthalpy of the platform 3, the pressure and the like are known in advance at the design stage, etc. It is more practical to make a determination based on the detection results of the sensors 31 and 32 that detect the temperature and the sensor 33 that detects the temperature and temperature / humidity installed on the platform 3.
However, as for actual operation, for example, the difference between the enthalpy of the tunnel air and the enthalpy of the platform 3 in one day is likely to fluctuate during the day and rush hours, or throughout the year in the summer, mid-term and winter, Each enthalpy in each case may be obtained in advance, and based on that, predetermined opening / closing control may be performed in a predetermined time zone or a predetermined date zone. Of course, these may be combined to control opening and closing.
In addition, regarding the calculation of enthalpy, the enthalpy of air in the tunnel and the enthalpy of the platform 3 may be compared based on enthalpy (specific enthalpy) per unit mass.

  Furthermore, in the above-described embodiment, an opening is still formed in the upper space of the opening / closing door 10, so that the train wind flows into the platform 3 from this opening. Therefore, if a shutter or the like for opening and closing the opening is separately provided and the slat 21a of the louver 21 is opened and closed, the slat 21a of the louver 21 can be opened and closed in conjunction with the train-like platform 3. Inflow can be further suppressed. However, in such a case, it is necessary to always open the shutter when passengers get on and off.

  By the way, the concentration of carbon dioxide on the platform 3 needs to be maintained below a predetermined concentration from the viewpoint of safety and comfort. Therefore, outside air may be introduced into the platform 3 as appropriate. In such a case, when the concentration of carbon dioxide on the platform 3 is higher than a predetermined concentration, as shown in FIG. 4, the wing plate 21 a of the louver 21 is opened to open the opening 13, The air in the tunnel may be positively introduced into the platform 3 by a train wind (so-called piston flow) caused by traveling of the vehicle 11. As a result, the external air load and the conveyance power can be reduced.

  In the above-described embodiment, a so-called movable platform fence type platform door device having a waist wall having a height from the chest to the waist of an adult is used, but the present invention is a full-screen type. The present invention can also be applied to a platform door device.

  When a full-screen type platform door device is installed, a part of the partition wall that divides the platform from the track part, for example, the left and right edges of glass or transparent plastic panel, the central part, the ceiling, the opening near the floor And an opening / closing device such as a shutter or louver may be provided in the opening as described above. The partition wall itself may be an opening other than the frame, and the opening / closing device may be provided in the opening. In such a case, the opening / closing member is formed in a vertical or horizontal cross-shaped shape, and when fully closed, the platform and the track portion can be cut tightly, which is convenient for maintenance. Of course, since it is a full screen type, the air-conditioning load of the platform when fully closed can be made lower than that of the platform door device at the waist high position described above.

  When a full-screen type platform door device has already been installed, the wall part other than the opening / closing door is changed to the waist wall at the height of the waist height, and an opening is formed on the upper part. A louver, a shutter, or the like may be provided in the opening as an opening / closing member.

  It should be noted that the present invention can be realized even if only the temperature sensor is used as the sensor for detecting the state of the tunnel or the platform, not the temperature and humidity sensor. For example, instead of calculating the enthalpy by measuring the humidity, the implementation of the above-described apparatus invention can be realized even if only the temperature is used as an index of the opening / closing member. The same applies when a sensor is installed in the vicinity of the entrance of the station building or when the opening / closing member is opened / closed by receiving communication of weather data. The latter can prevent intrusion and lowering of outdoor air accompanying the running of the train by closing the opening and closing member when the outside air temperature is low in winter.

  The present invention is useful for air conditioning of an underground station where a platform door device is installed.

DESCRIPTION OF SYMBOLS 1, 2 Platform door apparatus 3 Platform 4, 5 Track part 6, 7 Waist wall 10 Opening / closing door 11 Vehicle 12 Frame body 13 Opening part 14 Ceiling part 21 Louver 21a Wing board 31, 32, 33 Temperature / humidity sensor 34 Air conditioner

Claims (9)

An air conditioning method for an underground station that reduces the air conditioning load of the underground station where the platform door device is installed,
When cooling operation is performed for an underground station, when the enthalpy of the air in the tunnel is lower than the enthalpy of the platform of the underground station,
From the upper opening area of the waist wall separating the track portion and the platform in the platform door device, the train wind accompanying the running of the vehicle is introduced into the platform,
When air-conditioning operation is carried out for an underground station, when the enthalpy of the air in the tunnel is higher than the enthalpy of the platform of the underground station,
An air conditioning method for an underground station, wherein an upper opening area of a waist wall that separates the track portion and the platform in the platform door device is closed to prevent a train wind accompanying the traveling of the vehicle from flowing into the platform. In the winter season, the upper opening area of the waist wall that separates the track portion and the platform in the platform door device is closed based on the temperature in the tunnel, the temperature / humidity, or the temperature of the outside air, so that the train wind accompanying the running of the vehicle The underground station air conditioning method according to claim 1, wherein an inflow to the platform is suppressed. While the vehicle is stopped on the platform, the upper opening area of the waist wall that separates the track portion and the platform in the platform door device is closed to prevent high-temperature air from the vehicle from flowing into the platform. The underground station air conditioning method according to any one of claims 1 to 2. An underground station air conditioning system with platform door devices installed,
An opening is formed on the upper side of the waist wall separating the track and the platform in the platform door device,
An underground station air conditioning system, wherein the opening is provided with an opening and closing member that can freely open and close the opening. 5. The underground station air conditioning system according to claim 4, wherein the opening of the space formed above the opening / closing door in the platform door device is provided with another opening / closing member capable of opening and closing the opening. . An underground station air conditioning system with platform door devices installed,
In the platform door device, an opening is formed in a partition wall separating the track portion and the platform,
An underground station air conditioning system, wherein the opening is provided with an opening and closing member that can freely open and close the opening. The underground station air conditioning system according to claim 4, wherein the opening / closing member is a shutter or a louver. In the tunnel near the platform edge, a sensor for measuring the temperature or temperature and humidity in the tunnel is provided,
The platform is equipped with sensors that measure the temperature or temperature and humidity of the platform,
The underground station air conditioning system according to any one of claims 4 to 7, wherein opening and closing of the opening and closing member is controlled based on a detection result of each sensor. In the tunnel near the platform edge, a sensor for measuring the temperature or temperature and humidity in the tunnel is provided,
The platform is equipped with sensors that measure the temperature or temperature and humidity of the platform,
6. The underground station air conditioning system according to claim 5, wherein opening and closing of the opening and closing member and the other opening and closing member is controlled based on a detection result of each sensor.

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