Device for installing air pipe in narrow vertical shaft and hoisting method

Abstract

The invention relates to the technical field of building construction, in particular to a device for installing an air pipe in a narrow vertical shaft and a hoisting method. The device comprises a main support, and the main support is arranged at an air pipe well and fixedly connected with an inner wall of a building and the ground; a lifting device is arranged on the main support, the lifting device is connected with a hoop device through a lifting cable, and the hoop device is used for tightly holding an upper end opening of an air pipe joint and driving the air pipe joint to ascend and descend under the action of the lifting device; and the hoop device comprises a set of holding edge strips which are oppositely arranged, and at least two opposite pull rods used for adjusting the relative distance of the holding edge strips are arranged on the holding edge strips. The lower end of the lifting cable is connected with the holding edge strips. An air pipe section is lifted and dropped back through the lifting device, an upper-section air pipe and a lower-section air pipe are connected, and the problem that installation is inconvenient in the narrow space of the air well is solved; and meanwhile, the multiple sections of air pipes are assembled into the air pipe section in advance, then hoisting installation is conducted, and the installation efficiency and reliability of the air pipe are greatly improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a device and a hoisting method for installing an air duct in a narrow shaft. Background technique [0002] In high-rise buildings, it is necessary to set up a special air duct structure for ventilation. According to engineering experience, the air duct made of concrete has a large loss of air volume along the way, which will easily lead to the failure of the mechanical smoke control system; in engineering practice, the smoothness of the air duct plays a key role in the effectiveness of the system. Therefore, the mechanical pressurized air supply system and the mechanical smoke exhaust system should use pipes to supply air, and neither of them should use civil air ducts. The air supply (smoke exhaust) pipes should be made of non-combustible materials with smooth inner walls. In addition, the continuous compression of the area of ​​mechanical and electrical function ...

AI Technical Summary

Problems solved by technology

In addition, the continuous compression of the area of ​​the mechanical and electrical functional pipe wells in super high-rise buildings makes the operable space between the pipe wells extremely tight. If the wall of the pipe well is a shear wall, the method of building the pipe well after the pipe installation is completed It is also impossible. It has become a difficult problem for the connection of the flange of the air duct, the subsequent insulation of the air duct, and the sealing of the floor.

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