In 2009, in the face of weaker external demand conditions, insufficient domestic market as a whole, the elevator industry and other industries face the same hitherto unknown pressure. The volume of real estate is a way to shrink, led directly to the major elevator manufacturers sales dropped sharply, with the enterprise orders, the majority of elevator enterprises overstock and some foreign brands elevator giant even consider changing investment strategies in china. After entering the second half of 2009, China's economic V recovery, the largest revenue recovery of the real estate market led to the elevator production and sales gradually increased, but the elevator industry situation has inevitably changed dramatically.
Since the Olympic Games, World Expo and a series of international events, a revolution of energy saving, environmental protection and science and technology has been set up in china. This indicates that the new generation of green energy saving elevators and high-tech intelligent elevators will gradually become the mainstream of the market. In addition, the government procurement project has become a new growth point of the elevator market, such projects are mainly concentrated in the field of public transport and infrastructure, and the investment is not small, will open a new situation for the elevator industry.
China is now in the stage of rapid urbanization. With the continuing development of "high", public implementation upgrades, the elevator industry has become the most urgent needs, but due to the economic development level is not balanced, the differences in population density and city level inconsistent factors, Chinese domestic elevator industry development imbalance, both in the elevator or lift the distribution of new distribution serious imbalance. Especially populous provinces, such as Shandong, Sichuan, Chongqing elevator and Henan provinces have large population and increased at a low level, so with the upgrading of regional revitalization, lift demand for such two or three lines of the city will be more substantial growth.
At present, the control system used in elevator industry is mainly microcomputer control and PLC control, in which the microcomputer control is still the mainstream control scheme. Especially in vertical elevators, more than 90% use microcomputer control. This is mainly due to the high sensitivity and low cost of microcomputer control, the high computing ability of CPU and the high anti-interference ability. PLC has the advantage of simple logic control and reliability, so it is more widely used in escalator than straight ladder.
The future of high-speed elevators will also be a direction of development. The comfort of the ladder and the excessive smoothness of the start and stop of the elevator will also become more prominent. Therefore, in the next few years, microcomputer control will still be the mainstream, but the advantages of PLC's high reliability and easy maintenance will make PLC have more applications. The combination of microcomputer control and PLC control can realize humanized design better.
The driving modes of the elevator include frequency conversion drive, DC drive, hydraulic drive, double speed motor, etc. the inverter has become the most widely used elevator drive. The application of frequency converter in elevator lifting and gate. Vertical elevators and escalators will use the frequency converter to upgrade, the ladder on the door machine will also use small power inverter. The scale of the converter used for lifting is 228 thousand units, and the frequency converter applied to the gate machine is 132 thousand units.
The application of low voltage electric in elevator is mainly contactor and relay. The relay is used to control the switch of the electrical equipment in the loop, and is also used in the traditional elevator to control the whole system. But the logic relation is very complicated, and now it has been eliminated gradually. Contactor is an electric appliance used for remote closing and cutting off power circuit, and its power contact is closed by electromagnetic system.
09 years, the elevator industry relay market capacity is 44 million, contactor market capacity of 136 million. As the elevator control system has become the past, with the increase of the number of elevator, relay and contactor in the elevator market is gradually saturated, relay and contactor growth trend in the next few years will slow down.
As one of the beneficial industries of economic recovery, China's elevator industry has shown remarkable performance in 2009, which has become the largest elevator production and export volume in the world. Chinese Elevator Association predicted that the next five years China's vertical elevator and escalator market in domestic and export markets accounted for the entire global market in half and 1/3, for a long time in the future China will be the world's largest elevator market, the annual output value of over 100 billion yuan, the elevator market has broad prospects.
In 2009, the annual output of elevators in China increased by about 5% compared with 250 thousand units in 2008, and exports decreased by about 30%, and the domestic market increased by 13%. Affected by the global financial crisis, the international market exports decreased by 30%, about 10 thousand units. Domestic market demand is large, still maintained the momentum of sustained growth, but the rise rate has slowed down.
China's elevator market will continue to maintain an annual rate of 20%, with an average annual sales of at least $50 billion. The next 50 years, China's new housing area will reach 20 billion square meters. At present, the provisions of the state more than 20 meters tall buildings should be installed elevators, the future residential market demand for elevators will be very large. In addition, the airport, shopping malls, subways and other large public facilities for escalators, sightseeing elevators and other elevators are also very impressive.
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