The Jiangsu Provincial Standard DB32 / T2887-2016 “Electromagnetism detecting method of the hoisting elevator rope” has been published and implemented by our company. The standard stipulates the use of flux, magnetic flux leakage and remanence principle for nondestructive testing. Iron wire magnetic wire inside and outside the broken wire and other local defects and metal cross-sectional area of the loss of detection methods to detect the application.
The elevator is a kind of electric motor driven vertical lift, with box shaped pod, for multistory buildings or by people carrying goods. There are steps, step plate installed in continuous operation of the track, commonly known as the escalator or walkway. Fixed lifting equipment for service floor. The vertical elevator has a car that runs between at least two rigid rails with a vertical or inclined angle of less than 15 degrees. Regardless of the way it is used, the elevator is used as a general term for vertical transport in buildings.
According to speed can be divided into:
Low – speed elevator (1 m / s or less);
Fast elevator (1 ~ 2 m / s);
High-speed elevator (2 m / s or more).
Elevator by use classification, the following:
Passenger elevators, designed for the delivery of passengers to the elevator, requires a sound safety facilities and a certain car decoration.
A cargo elevator, designed primarily for the transport of goods, usually accompanied by an elevator.
Medical elevator, for the delivery of beds, stretchers, medical vehicles and the design of the elevator, the car has a long and narrow features.
Debris lift, for the library, office buildings, hotels, transportation of books, documents, food and other design of the elevator.
Sightseeing elevator, car wall transparent, for passengers to use the elevator.
A vehicle elevator used as an elevator to transport vehicles.
Ship lifts, elevators used on ships.
Construction of elevators, construction and maintenance of the elevator.
Other types of elevators, in addition to the above commonly used elevators, but also some special purpose elevators, such as cold storage elevators, explosion-proof elevators, mine elevators, power station elevators, firefighters elevators, oblique elevators, nuclear island elevators.
The elevator is a kind of electric motor driven vertical lift, with box shaped pod, for multistory buildings or by people carrying goods. There are steps, step plate installed in continuous operation of the track, commonly known as the escalator or walkway. Fixed lifting equipment for service floor. The vertical elevator has a car that runs between at least two rigid rails with a vertical or inclined angle of less than 15 degrees. The size and structure of the car is convenient for passengers to enter or unload goods. Regardless of the way it is used, the elevator is used as a general term for vertical transport in buildings. According to the speed can be divided into low speed elevator (1 m / s), fast elevator (1 ~ 2 m / s) and high speed elevator (more than 2 m / s). In the middle of the nineteenth Century, hydraulic elevator began to be applied in low rise buildings. In 1852, the United States E.G. Otis developed a wire rope hoist safety elevator. In 80s, the drive device has been further improved, such as the motor driven by the worm winding drum, the use of balance weight, etc.. The end of nineteenth Century, the use of friction wheel drive, greatly increasing the lift height of the lift.
At the end of the 20th century, the elevator adopts permanent magnet synchronous traction machine as power. Greatly reducing the room area, and has low energy consumption, energy efficiency, enhance the advantages of speed, greatly boosting the real estate to the direction of development of high-level.
The biggest difference between ordinary elevator and fire in high-rise residential elevator is different, the fire lift is a special for fire fighting and rescue firefighters in the power set, fire elevator should have two independent power supply, only a common power supply.
High-rise residential elevators and elevators fire is the biggest difference between the use of different, fire elevator is dedicated for firefighters fire fighting and rescue, in the power settings, the fire elevator should have two independent power supply, ordinary only one power supply.
In addition, the fire elevator and high-rise residential ordinary elevator, compared with the following requirements:
1, fire elevator should be located before the room, the door before the room should be used B fire doors;
2, the front room should rely on the external walls set up in the first floor should be set up through the outdoor safety exit or through the length of not less than equal to 30m of the channel leading outdoors;
3, fire elevator shaft, the engine room and the adjacent elevator shaft, between the engine room, fire resistance should be not less than 2.00h non-burning body partition separated;
4, when the door to open the door when the fire door should be set; in the first floor of the fire elevator shaft wall should be set for firefighters dedicated operation button, fire elevator car interior decoration should be non-combustion materials and Its internal fire-fighting intercom should be set up special;
5, fire elevator downhole should be set drainage facilities, the capacity of drainage wells should not be less than 2 square meters, the displacement of the drainage pump should not be less than 10L / s. Fire elevator room door should be set before the retaining measures;
6, fire lift the load should not be less than 800Kg, fire elevator speed, should be from the first floor to the top of the run time of not more than 60s calculated to determine (that is, the emergency landing time);
7, fire lift power and control cables, wires should be taken waterproof measures;
8, fire elevator should use a dedicated power supply circuit, when the production and daily life is cut off, should still be able to ensure that electricity, the power distribution equipment should be clearly marked;
9, fire elevator power supply, in its distribution line at the end of a power distribution box at the end set up automatic switching device;
10, fire elevator control linkage in the fire control room, fire elevator usually can also be used as an ordinary elevator, or both passenger and freight use.
11, fire elevator can be used for emergency landing.
Elevator failures, accidents have occurred, for the popularity of elevator safety knowledge, for you to sort out.
Taboo 1:
When the elevator is not used to elevator the door or to wait for the door ladder, it is forbidden to use the hand to lift the door.
Once the door open, not only the car will be an emergency stop, causing passengers trapped in the car, affecting the normal operation of the elevator, more likely to cause passengers waiting to fall into the hoistway or injury. When the car is running, once the door is opened, the car will be emergency stop, causing passengers trapped in the car, affecting the normal operation of the elevator. Therefore, regardless of whether or not the elevator operation, grilled, pry, support, rely on the elevator doors are extremely dangerous.
Taboo 2:
Children should not take a separate elevator
Because the child self-care ability is weak, do not know the safety knowledge of elevator, lively, easily lead to misuse, and self-protection is not strong, alone in the car or emergency situations prone to danger.
Taboo 3:
Should not jump in the car
Jumping in the car, left and right shaking, will cause the elevator safety device malfunction caused by passengers trapped in the car, affecting the normal operation of the elevator, while there may damage the elevator parts.
Taboo 4:
Pets should pay attention to what the elevator
Do not use long strings to lead the pet ride, the application of hand tight or cling to prevent the string is layer, car door caught, resulting in operational safety incidents.
Taboo 5:
Flammable and explosive materials into the car
Dangerous goods such as flammable, explosive or corrosive articles should not be brought into the elevator car. In the event of an accident, personal injury or damage to the equipment may result. In particular, corrosive items will be scattered to the elevator will not be aware of the hidden dangers of accidents.
Taboo 6:
Overflow items should not be brought into
Passengers will be flowing rain gear, overflow items into the car or cleaning the floor when the water will be brought into the elevator car, will tide the car floor so that passengers slip, and even make the water along the car door sill clearance Into the shaft and the occurrence of electrical equipment short-circuit fault.
