If the fire elevator is lower than the basement, you can directly drain the water from the bottom of the well to the outside. In order to prevent water from pouring back in the rainy season, a single-flow valve should be installed on the outer wall of the drainage pipe. If it cannot be discharged directly to the outdoors, a pool of not less than 2 cubic meters can be set up at the bottom of the well or next to it, and the water from the pool is pumped to the outside by a pump with a displacement of not less than 10L / s.
With the development of society, elevators have been widely used as a fast and convenient tool for vertical transportation in buildings, but various types of accidents have also emerged endlessly. Since 2013, Hubei, Xi'an, Shenzhen and other places have published elevators 'fatal'. In the news, many people said, 'I was panicking in the elevator.' There were 36 elevator accidents in China in 2012, and 28 people died. The survey showed that 21.74% of respondents said that they often encounter elevator failures. It may be helpful to introduce some common knowledge about elevator safety. 1. How does the elevator run? The elevator has a car and a counterweight, which are connected by a wire rope.
The wire rope is driven by the traction of the driving device (traction machine), so that the elevator car and the counterweight are in the elevator. Move up and down on the guide rail. The two ends of the traction rope are connected to the car and the counterweight respectively, and are wound on the traction wheel and the guide wheel. The traction motor drives the traction wheel to rotate after the speed is reduced by the speed reducer. ,
To achieve the lifting elevator panel factory of the car and counterweight, to achieve the purpose of transportation. The guide shoes fixed on the car can be moved up and down along fixed guide rails installed on the wall of the hoistway of the building to prevent the car from deflecting or swinging during operation. The normally closed block brake releases the brake when the motor is running, causing the elevator to run, braking in the event of a power failure, stopping the car from rising and falling, and maintaining its stationary state at a designated floor for people and goods to enter and leave. The car is a box component carrying passengers or other loads. The counterweight is used to balance the car load and reduce the power of the motor.