【 Weak current College 】 ultra high-speed elevator challenges---Power By 【 China power house network 】

Japan Hitachi company will be held in February 2008 in Ibaraki Prefecture building the world's tallest elevator test towers, always as high as 203 m. 　　When completed, it will be used to conduct the most highly manoeuvrable 78 km of elevator operation test. From elevator company elevator testing tower height pursuit can be seen, in its future business decisions, ultra-high-building continues to be important in their target markets. Ultra high speed elevator market geometry? recently there was news that Japan Hitachi company will be held in February 2008 in Ibaraki Prefecture building the world's tallest elevator test towers, always as high as 203 meters, this will refresh the Mitsubishi Motors company was completed in September 2007 the elevator testing tower height record — 173 m. 　　It is reported that the project is expected to cost approximately 60 million yen (approximately 54 million), was built, it can be used to conduct the most highly manoeuvrable 78 km of elevator operation test. Represented by its ultra-high speed elevator present in areas of development, the elevator is on what impact the entire industry? science times reporters interviewed Chinese society President ren day lift laughs and Xizi Otis Elevator co., Ltd. Yu Wang. 　　Elevator Testing Tower is not the better Japan Mitsubishi Electric company in September 2007 the completion of the elevator testing Tower high 173 m, used to be the world's tallest elevator test towers, Hitachi's 203 m test tower will refresh the record, but this is only the high tower above the ground. 　　Ren day laugh told reporters, Finland Kone elevator company waste mine into the deep underground elevator testing Tower up to 300 meters, is the highest on record. 　　Ren day laughs, Elevator Testing Tower's main function is to simulate the actual operating environment, the elevator in the new product to market before the elevator's technical performance, security, part performance adequate safety and reliability testing. Yu Wang said, elevator and automobile, aircraft, as part of the building in the Interior of the run, so we must adapt to the changes of the building itself. Everyday see a still from the surface of high-rise buildings, in fact, always changing, subject to the influence of wind, air current, the building will be after about a few cm of swing, swing and more to the height, the more obvious; as a result of the enamel steel frame structure, building, high noon and evening and there are differences. 　　More than 10 m high building, two variations are very small, but the 100-metre tall variations will be much more, so when designing the construction requires a more precise calculation. 　　Theoretical and laboratory data that cannot be resolved in the evasion of the elevator or adapt to such changes. Thus, you need to have a relatively high test tower to simulate this State, observation elevator in actual operating circumstances occur, or running effect design can be met. The higher the requirements for the elevator buildings of rating run faster. Ultra-high elevator testing Tower, commonly used in the building of the super high speed elevator test needs. 　　Normally, the operating speed of 1 m/s below elevator is called low-speed elevator, 1 to 2 m/s for medium-lift, 2 m/s for high speed elevators, 4 m/s or more elevators is called super high-speed elevators. Ultra high speed elevator to rated speed run before and after a long process of acceleration and deceleration, if elevator Tower is too low, the need for speed and ran out. Elevator in addition to ensure passenger safety and comfort to the pursuit of psychological satisfaction. 　　Lift time if you stay in the car in time 60 ~ 90 seconds that normally does not make the passenger appears anxious mental. So the elevator from the bottom to go directly to the highest levels of uptime are often control in 60 seconds, this is also the choice for the high speed of common guidelines for the elevator. Ultra high speed elevator on safety devices, mechanical parts, vibration, noise, etc., are all put new demands, pressure, acceleration curve, etc will be included in the test. 　　Thus, the need and running environment similar to lift tower in millions of times by accident on the run, the new product can eventually go to market. 　　Test tower is a necessary condition. However, the market for different buildings, Elevator Testing Tower's height will vary. It is understood that the world's fastest elevators were installed in Chinese Taipei 101. It can operate at 16.7 m/s, is Japan's Toshiba elevator companies. 　　Prior to this the fastest elevator is 12.5 m/s from Japan's Mitsubishi elevator manufacturing company. 　　But the two companies of Elevator Testing Tower at that time were the highest in the world. Ultra high speed elevator faces several challenges as day laugh that research in the elevator, several major challenges must be addressed in the elevator testing Tower. First, the security issues. In 1853, the United States Otis company first invented a safety device that makes the original for the contents of the lift for the first time manned tool. 　　In high-rise buildings, elevators are vertical transport means, is a large-scale comprehensive Mechatronics equipment, including many electrical safety devices and mechanical safety device, such as power protection devices, emergency stop switch, ladder overspeed protection, overload protection, limit switch, emergency stop switch, and brake, speed limiter, safety clamp, bumpers, etc. These safety devices are able to guarantee the safe operation of the elevator. Elevator with cabin and on heavy, connecting them by wire rope, rope through drive unit (tractor) traction drive, the car and on along the Rails for movement up and down. Wire rope configuration not only to bear the elevator car and rated load, but also to ensure that the size of the drag gravitation. Elevator car and floor signal, control cabinet at any time to maintain communications, there needs to be accompanied by a cable. Elevator lifting height increases, rope and cables and wire ropes and cables, of vibration problems is also very prominent, the length of the contract and its own weight, etc., are all brought many new problems. Secondly is comfort. 　　Ultra high speed elevator often have greater speed of addition, subtraction, will give passengers a greater sense of overweight and weightlessness. The elevator runs too fast, large cabin vibration and noise, the harness will rapidly changing some commuters eardrum will feel uncomfortable. Elevator is a means of transport, a transport capacity issues. When you configure the elevator required complex traffic analysis to ensure that meet the requirements. Many complex operations on your computer to complete theTraffic analysis of input data including building traffic pattern, the elevator speed, switch time and stop time, etc. Stop time is traffic analysis in a complex of input data, because it is dependent on the number of elevator passenger elevator car with access to the number of functions, it is very discrete. Usually stop time is in the process of using elevator takes most of the parameters, it therefore becomes decided to lift system transport capacity of the decisive factors. 　　World's tallest building, one of the original New York World Trade Center complex, construction area of 9 million square feet, in the design of the early days of computer simulation technology used for elevator passenger traffic traffic analysis. Each seat has 104 110 layer Tower elevators and direct Ministry regional high-speed elevators for building 5 000 employees and approximately 8 000 daily visitors vertical transport services. Another way to improve elevator transport capacity is double-deck cabin lift. Double-deck cabin lifts have been installed in Chicago life building, Boston John Hancock building, and in Chicago Sears Tower was used as a gateway to air transit direct high-speed elevator lobby. As the name implies, the double-deck cabin is divided into upper and lower body structure, passengers from the top and bottom layers station Hall doors access car, lower car dock singular floors, the upper floor of the car dock area. 　　This arrangement is to alleviate the superiority of a layer-staircase Hall crowd crowded. This mode in passenger volume during peak periods of extremely high operating efficiency. 　　Ren day smile that, to some extent, architects and construction companies in pursuit of high rise buildings, just on their imagination and skill levels. 　　At present, the world's largest Super high-rise buildings mainly concentrated in the cities of Asia, like China's Hong Kong, Taiwan, Shanghai, Guangzhou, and Malaysia, Japan, U.A.E., some developed city. Yu Wang said, high-speed elevator in Chinese elevator market sales of around 15 million units per year, which runs at speeds up to 5 m/s above, probably only a 200-bed, but the entire elevator market share per couple. Ren day smile said, China is now the largest elevator market, but relatively late. In 1979, the Chinese mainland only 1 million or so of the elevator. Since reform and opening up, world-class elevator companies, such as the United States Otis, Japan's Mitsubishi, Hitachi, Toshiba, European Kone, Schindler, Thyssen, have successively into China. At the same time, a number of outstanding local Jiangnan Jiajie elevator companies, canny, shenlong, Shenyang Sanyo, Bo lint, following the West Henan, Shandong, 100 Sturt's rapidly growing up. But the research and development capabilities, our national brand miss the multinational brand, but these multinationals in China research and development ability can't keep up with their local research and development ability of the parent company. At present, China's elevator market competition is very fierce, Elevator enterprises to survive and develop, the quality to go up, costs down, this will require technology innovation, the need to increase research and developmentcapabilities, is eliminated.