Elevator system selection in super high-rise buildings Abstract: in super high-rise buildings, fast, efficient and stable vertical service is indispensable. As a vertical means of transportation, the selection of its quantity configuration, control mode and relevant parameters will not only directly affect the primary investment of the building, generally the elevator investment accounts for about 10% of the total investment of the building), but also affect the use safety and operation service quality of the building...
key words: elevator system selection and application of high-rise buildings I. The configuration of high-rise and super high-rise elevators in super high-rise buildings, fast Efficient and stable vertical service is indispensable. And obtained the certificate issued by the German passive Housing Research Institute. As a vertical means of transportation, the configuration of its number, control mode and the selection of relevant parameters will not only directly affect the one-time investment of buildings (generally, the investment of elevators accounts for about 10% of the total investment of buildings), but also affect the use safety and operation service quality of buildings. In the building, it is very important to properly select the number, capacity, running speed and control mode of elevators, and once the elevators in the building are selected, installed and used, it has almost become a permanent fact. In the future, it is very difficult or even impossible to increase or modify the type. Therefore, in the design, we should pay full attention to the configuration of elevators at the beginning of the design. Most modern super high-rise buildings are about 100 floors, and the population flow in the building is large, and the vertical traffic mainly depends on elevators. The key to effectively designing elevators in super high-rise buildings is to use various local elevators for service, and organize the elevator system in local areas. Access to these local areas is served by a fast shuttle elevator from the ground departure station to the air waiting hall in the local area. Passengers arrive at the air waiting hall and then transfer to the section elevator. In order to transport passengers to the destination at the fastest speed, generally every 30 ~ 35 floors of the building is a local area. The elevator configuration of conventional super high-rise building (100 floors) is shown in Figure 1. Figure 1 conventional super high-rise building (100 floors) elevator configuration in the configuration of super high, then how to solve these failures is the key floor elevator, we should pay attention to the following points: 1 The limit number of feasible elevators for a single group of elevators is 8. 2. The number of floors above each elevator floor area (office building) shall not exceed 15 ~ 16 floors (18 ~ 20 floors for double floors). 3. The load of typical office building elevator is 1350, 1600 and 1800kg. Double layer: 1350/1350; 1600/1600； 1800/1800kg。 4. The typical air corridor/sightseeing floor elevator load capacity is 2040; 2250； 2500kg。 5. The vertical acceleration of the elevator is 0.9 ~ 1.5m/s2. 6. The elevator speed focuses on overcoming long travel; The typical elevator speed without reducer is: 2.5, 3 The future development trend of medical packaging is to accelerate the product upgrading of packaging system 5, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0m/s, etc. 7. The longest travel of traction elevator is 600m. 2、 The control system of high-rise and super high-rise elevators because the super high-rise building adopts the multi elevator system, in order to improve the use efficiency of the elevator group, meet the needs of passengers at the fastest speed, and shorten the waiting time of passengers, the microcomputer elevator control system should be used to process a large amount of information in time through the computer control system to judge the call information of each platform and the position, direction, opening and closing state of each elevator Call in the lift car and other states to improve the transportation capacity, improve the service quality, and improve the economic benefits of the super building. Elevator microcomputer group control system mainly includes the following aspects: 1 The lift car shall slow down before arriving at each parking platform, and be forced to slow down and stop before arriving at the platforms at both ends to avoid hitting the top and bottom, so as to ensure safety. 2. Register the platform to which the passengers in the lift car want to arrive and use the indicator light as the response signal. Slow down and stop before arriving at the designated platform, cancel the number, register the call of the passengers waiting for the elevator and make the response signal. 3. Drive straight with full load, and only stop at the platform designated by the passengers in the lift car. 4. When the car arrives at a platform and becomes empty, another platform calls. Compare the distance from the car to the calling floor with other cars in the same direction during driving, and the closer one arrives at the calling station and cancels the number. 5. Call the passengers at the end platform to call the service of the car near the landing platform and the empty car. 6. The car position display is set at each platform to predict the passengers on the platform, eliminate the anxiety of passengers, and make passengers move to the answering elevator in advance to shorten the waiting time. 7. After the platform call is registered and answered, when the lift car arrives at the platform, there shall be a sound to remind the passengers waiting for the lift. 8. The running car scans the deceleration point of each platform and decides whether to stop according to whether there is a call in the car or platform. 9. The passenger platform calls the lift car, and the responders of all elevators that can provide services at the same platform respond. 10. The control room classifies the elevator group into single level stops and double level stops. All elevators end at the end station. At the middle level station, the single level platform calls the car of the double level platform. The control room does not register and does not respond, and vice versa. 11. The call from the intermediate platform to the direct elevator is not registered and will not be answered. 12. When the car completes the transmission task, if there is no call signal or is instructed to perform other services, the elevator stops at the platform, the car door opens, and waits for other call signals. 13. The control system monitors the status of the elevator at all times and scans the call status of each platform at the same time. 3、 Power supply system of high-rise and super high-rise elevators the power supply system of super high-rise elevators is generally equipped with two independent power supplies to ensure the power consumption of the elevator and prevent passengers from staying in the running elevator due to the interruption of the power supply of the elevator. When one power supply fails or is repaired, the other power supply will be put into operation automatically. In case of accident or power failure in a large area, the second power supply cannot supply power, then the power supply system should be switched to the third power supply, and the third power supply of super high-rise buildings is generally supplied by diesel generators. When the third power supply also fails, it can only rely on the battery for power supply. Generally, the battery is required to provide emergency lighting and emergency power to the public passage of each floor, and the rest supplies power to the elevator and can maintain the elevator to continue working. 4、 The grounding system of elevator the grounding system of elevator becomes complex after modern elevator adopts computer system control and will not be captured by them. It includes signal grounding, safety grounding protection and lightning protection grounding protection. 1. Signal grounding
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