Elevator safety is now concerned by the competen […]
Elevator safety is now concerned by the competent authorities and the media, and users are also very concerned. As a manufacturing company, they are all paying attention.
How many aspects does elevator safety involve?
First of all, elevator safety involves elevator design. There are special elevator design calculation books for elevator design, including mechanical design and electrical design. As for elevator calculations, now 70% of companies have incomplete design calculations for all models, and 20% of companies even have only one calculation for one product at the time of obtaining the license, and the calculation is no longer performed when the speed or load is reduced. Although the current elevator technology is relatively mature, it is not enough to rely on experience alone. This is one of the important factors that make the domestic brand market insufficiently convincing.
The second issue involved in elevator safety is elevator manufacturing technology and processing technology. Although the processing of large parts has been passed, especially the main safety parts are professionally produced, some small elevator companies are unable to standardize the processing of hoistway parts.
The third aspect is installation and debugging. Installation and commissioning is the final assembly of the elevator, and it is also the most important part of elevator safety. If the elevator installation team has more than five years of actual installation experience, and the installation technology and debugging are very good, the elevators they install will have no brand differences and will be very safe. If the installation team has poor technology, weak responsibility, and insufficient safety awareness, then the elevator safety is already a hidden danger.
The fourth elevator safety issue is maintenance. Relevant national regulations require one maintenance personnel to be responsible for the maintenance of up to 20 units. At present, due to the rapid growth of elevator installation and usage in the past three years, a large shortage of maintenance personnel has been caused. As elevator users have repeatedly reduced maintenance costs, maintenance personnel may perform maintenance more than twice the regulations. Some elevators have one It is difficult to perform maintenance once a month. As a result, maintenance personnel only go for repairs and emergency treatment.
The fifth aspect of elevator safety is elevator life. Generally, the design life of elevators is 15 years, especially if some Japanese elevators wear out for 15 years, they can only be replaced if they cannot be used (Japan Mitsubishi escalators have a design life of 15 years. If the guide rails are worn out, the guide rails cannot be replaced, but the elevator can only be replaced). After 15 years of use of general vertical elevators, the elevator control system and electrical system are aging, causing many failures; and mechanical wear and tear will cause safety hazards; on the other hand, the elevator accessories 15 years ago are currently unable to meet the requirements, and elevator technology In progress, maintenance becomes more difficult. Therefore, once the elevator is more than fifteen years old, the need to replace the elevator is a normal situation all over the world.
The sixth aspect is the safety of elevator use. For example, many subway escalators promote left and right standing. In fact, this is not a safe use of elevators. Because the left and right forces are the same when the elevator is designed, and the load is uneven during the use of the elevator due to the left and the right standing, so it is not good for the safety of the elevator. The safety of vertical elevators is also very important.
Of course, elevator safety is not just the above-mentioned aspects, in fact, safety is the human factor first. If elevator manufacturing, elevator installation, and elevator maintenance are highly responsible, and users are equally responsible, then elevator safety can be truly guaranteed.