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The elevator should not be scrapped, after reading this will understand
Published:2015-09-08Views: Edit people:Ministry of CommerceReproduced in:

As of the end of 2014, the number of elevators in China has more than 3500000 units, the amount of production, ownership, annual growth of the world's first. However, with the increase of the number of elevators, the old elevator running for many years also increased rapidly, and the safety risk caused by the functional degradation of the elevator components has increasingly been concerned by the society.


  


July 20th, the National Standards Committee held a media briefing, invited experts to the new release of the main parts of the elevator, the technical conditions of the national standards for interpretation.

Why to develop this standard



Because of the influence of the design, manufacture, installation, maintenance and use, there is a big difference in the service life of the elevator. It is difficult to establish the standard of the elevator. At the same time, the transformation and upgrading of the old elevator, but also the relevant departments are very "headache" one thing: a huge cost and management difficulties.

Therefore, by setting up the main parts of the elevator to scrap the technical conditions, the decision to scrap or not, and then determine whether the elevator is required to scrap, is to improve the safety in the use of the feasible way, taking into account the economic and scientific.

Currently the only relevant standards in the world



This standard is independently developed by our country, there is no relevant international standards, developed countries have no relevant standards. The standard filled in the domestic and foreign elevator industry for many years the lack of elevator related standards, the new standard will be formally implemented in February 1st next year.

13 major component technology



The new standard stipulates the "safety protection device, emergency rescue equipment, safety door in well and the trapdoor, drive host, car, layer door and the car door, an electrical control device and 13 on the safe operation of the elevator influence large elevator main parts scrapped technology conditions. Standard clear mechanical damage (such as cracking, deformation), non normal wear and tear, corrosion, material aging, electrical failure, electrical components damage and other 6 kinds of failure or potential failure mode as part of the technical conditions for the existence of risk, the need to scrap parts to provide a technical basis. To improve the operation safety and service life of the elevator, the main component of the failure or potential failure risk of the main components of the elevator to promote the upgrading and transformation.

Effectively avoid serious accidents



   As the key part of the elevator, the brake can be used as the core of the electromagnetic coil, which can lead to the phenomenon of the brake, which is easy to lead to serious safety accidents such as the lift truck, the pier bottom, and the top of the head. The standard of the brake solenoid coil iron core action exception, the phenomenon of card resistance phenomenon as a brake scrap technical conditions, will greatly reduce the risk. Hanging wire rope as elevator traction and bearing components, carrying the car with the load and the weight, and the realization of the traction drive. Rope suspension deformation or damage will not only lead to wire rope inner stress distribution is not uniform, accelerate the damage of steel wire rope, but also to the traction wheels and pulleys caused abnormal damage and accelerated damage. Standard wire rope cage shape distortion, strand extrusion, kinks, part flattened or curved fold "appears as the traction steel wire rope and the hydraulic elevator suspension rope scrap technical conditions of, will be effective to avoid the above problems.

The national standard of the national standard for the technical conditions of the main parts of the elevator


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