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Installation method of pressurized fan for building smoke exhaust system

A pressurized fan and smoke exhaust system technology, which is applied to parts of pumping devices for elastic fluids, hoisting devices, mechanical equipment, etc., can solve the problem of time-consuming pressurized fans, troublesome transportation, and impact on pressurization Fan installation progress and other issues, to achieve the effect of saving handling time, efficient installation, and convenient hoisting

Active Publication Date: 2020-12-15
ZHEJIANG PROVINCE ERJIAN CONSTR GRP INSTALLATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the "Code for Fire Protection Design of High-Rise Civil Buildings", a pressurized air supply port should be installed every two to three floors in the stairwell. Usually, a pressurized fan should be installed every other air supply port. Correspondingly transport to the required floor, and then install the pressurized fan in the pressurized air supply port through expansion screws, etc. The transportation of the pressurized fan takes a lot of time, which affects the installation progress of the pressurized fan, and needs to be improved

Method used

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  • Installation method of pressurized fan for building smoke exhaust system
  • Installation method of pressurized fan for building smoke exhaust system
  • Installation method of pressurized fan for building smoke exhaust system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for installing a pressurized fan for a building smoke exhaust system, comprising the following steps:

[0040] S1, preparation before installation, such as figure 1 As shown, the installation rod 14 is set above the building where the pressurized fan needs to be installed, and the installation rod 14 can be fixedly connected with the building. The installation rod 14 is horizontally arranged, and the installation rod 14 is rotatably connected with a fixed pulley 15, and the fixed pulley 15 is positioned at the outside of the building and directly above the place where the pressurized fan is installed. The hoisting device 2 (not shown in the figure) usually adopts a winch, and the suspension rope 3 of the hoisting device 2 is passed around the fixed pulley 15 . Installing bar 14 is positioned at fixed pulley 15 axial both sides and also all is fixed with guide rope 8, and the lower end of guide rope 8 is fixedly connected with ground anchor 9, makes guide rope ...

Embodiment 2

[0046] A method for installing a pressurized fan for a building smoke exhaust system, the difference from Embodiment 1 is that the installation rod 14 is not connected to the building, and hoisting equipment is used.

[0047] Such as figure 2 As shown, the hoisting device includes a mounting base 1 , and wheels are usually provided on the bottom of the mounting base 1 , which facilitates the movement of the hoisting device. The mounting base 1 is provided with a lifting device 2, the lifting device 2 is usually a hoist, and the suspension rope 3 is wound on the hoist and installed, and the free end of the suspension rope 3 is also provided with a hook 4, which is used to connect with the pressurized fan. The rope 3 is fixed with a connecting rope 5 near the hook 4, and the end of the connecting rope 5 away from the hanging rope 3 is connected with a carabiner 6.

[0048] Such as figure 2 , image 3 As shown, two reels 7 rotate on the mounting base 1 , and the two reels 7 ...

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Abstract

The invention discloses an installation method of a booster fan for a building smoke exhaust system, and relates to the technical field of building installation. According to the technical scheme, S1,preparation before installation is conducted, specifically, an installation rod is arranged and rotationally connected with a fixed pulley, the fixed pulley is located on the outer side of a buildingand located over the installation position of the booster fan, a lifting rope of a lifting device is wound around the fixed pulley, and the two sides, in the axial direction of the fixed pulley, of the installation rod are both provided with guide ropes; S2, booster fan lifting is conducted, specifically, the lifting rope of the lifting device is connected to the booster fan needing to be installed, the two sides of the booster fan are in sleeving connection with the guide ropes through climbing hooks correspondingly, the lifting device is started to drive the booster fan to move upwards to acorresponding boosting air feeding opening along the two guide ropes; and S3, booster fan installation is conducted, specifically, the booster fan is dragged into the boosting air feeding opening, and the booster fan is installed and fixed through expansion bolts. By arranging the fixed pulley and the lifting device, the time for carrying the booster fan is saved, so that installation of the booster fan is more efficient.

Description

technical field [0001] The invention relates to the technical field of building installation, more specifically, it relates to a method for installing a pressurized fan used in a building smoke exhaust system. Background technique [0002] According to fire statistics, smoke is the chief culprit of death in building fires, and the proportion of people dying from smoke is relatively large, even as high as 80%. Moreover, after a fire breaks out in a building, the accumulation of smoke and dust will affect the firefighting progress of the firefighters, which is not conducive to controlling the fire. Therefore, smoke exhaust systems will be designed for existing buildings. [0003] For example, the Chinese utility model patent with the patent number CN203654678U discloses a fire and smoke prevention system for high-rise buildings, which is applied to buildings with 20 to 32 floors. The fan is equipped with an independent pressurized fan in the basement, and several pressurized ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/60B66D1/12B66D1/36
CPCB66D1/12B66D1/36F04D29/601
Inventor 朱东伟常志忠俞庆干杨汶雨蔡进军
Owner ZHEJIANG PROVINCE ERJIAN CONSTR GRP INSTALLATION
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