Air pressure adjusting method and device for ultra-high-speed elevator shaft

Abstract

The invention discloses an air pressure adjusting method for an ultrahigh-speed elevator shaft. The method utilizes a forced ventilation pressure adjusting device to adjust shaft air pressure, and comprises the following steps: calculating parameters of the forced ventilation pressure adjusting device; obtaining shaft air pressure monitoring data and elevator operation data; and calculating shaft air pressure adjusting parameters to control a flow and an airflow direction of the forced ventilation pressure adjusting device, and adjusting the shaft air pressure. The invention further discloses an air pressure adjusting device for an ultrahigh-speed elevator shaft. The device comprises a controller, a shaft air pressure monitoring device and a forced ventilation pressure adjusting device. The shaft air pressure monitoring device monitors shaft air pressure in real time and sends the shaft air pressure to the controller, and the controller calculates shaft air pressure adjusting parameters and controls the forced ventilation pressure adjusting device to achieve adjustment of the shaft air pressure by supplying air to the shaft or exhausting air from the shaft. According to the method and the device, the building tapping cost can be saved, adapting to the actual situation and seasonal change of a building can be realized, noise and air pressure of an elevator car are improved, and the phenomenon that the self-closing force of a landing door is insufficient is improved.

Description

technical field [0001] The present application relates to the field of air pressure regulation in an ultra-high-speed elevator shaft, in particular to a method and device for adjusting air pressure in an ultra-high-speed elevator shaft. Background technique [0002] At present, in the field of ultra-high-speed elevator technology, for problems such as poor car comfort caused by shaft wind pressure and insufficient self-closing force of landing doors, ventilation openings with a fixed area are used in the shaft to deal with them, such as figure 1 shown. Major elevator manufacturers will calculate the area of ​​the shaft vents according to their own calculation formulas, including the shaft plunger ratio and elevator speed. [0003] Taking an elevator manufacturer as an example, the size and position of the vent hole are briefly described as follows: When the speed is 4m / s≤ν≤6m / s, opening the vent can effectively reduce the noise in the car and improve ride comfort; the best ...

AI Technical Summary

Problems solved by technology

[0004] Problems and disadvantages of the prior art: due to the fixed area of ​​the vent, the temperature and humidity in the well vary in different seasons, resulting in obvious differences in the effect of the vent due to seasonal changes, which affects the comfort of the ride; in addition, the calculation formula of the well vent The vent area shown can only be used as a reference. Due to the influence of the building environment, the actual on-site effect is uncertain. If the ventilation area of ​​the hoistway is too small, it will affect the comfort in the car and the noise outside the hall. It will be more difficult to rectify the building body again. ; Due to the limitation of the building body, if the ventilation openings with a total area of ​​sufficient area are set according to the design requirements of the elevator manufacturer, the construction cost will be increased

However, the adjustment of the size of the vent area is passive and lagging behind the adjustment of the hoistway air pressure; the effect of reducing the noise in the car is also limited. When the opening area reaches a certain size, the opening area becomes larger, and the noise value in the car does not will continue to get smaller, and the effect of reducing car shaking will no longer increase

In addition, this invention does not solve the problem of increased construction costs caused by opening large-area vents, and the difficulty of rectification in the later stage

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