Jinan ventilation pipeline is a pipeline system used for air transmission and distribution. Purified ventilation duct is a metal or non-metallic duct for ventilation and air conditioning engineering of industrial and civil buildings. It is an infrastructure to make air circulate and reduce the concentration of harmful gases. Do you know how to do the installation and intermediate inspection of air duct? below
(1) Firstly, find out the elevation of air duct according to the design drawings of Jinan air duct and reference to the civil baseline.
(2) After the elevation is determined, the air duct support and hanger form shall be determined according to the space where the air duct system is located. The air duct support and hanger form and material specification shall be selected according to<<Heating and Ventilation Design Selection Manual>>(T607).
(3) Installation hanger
(A) Find out the laying position of the suspender according to the center line of the air duct, and the single suspender is on the center line of the air duct; The double suspenders shall be installed symmetrically according to the bolt hole distance of the tray or the centerline of the air duct.
(B) The suspender can be welded or hung on the hanger according to the form of hanger.
(C) When installing the riser clamp, the upper hanger shall be fixed first, and then the hanging line shall be obtained by hammering in the center. The lower clamp shall be fixed according to the hanging line.
(D) When the air duct is long and a row of supports need to be installed, fix the two ends first, and then install other supports with the pull wire method.
(E) Fixed supports must be provided for the installation of ventilation pipes in Jinan.
(F) Embedded parts of supports and hangers or embedded parts of expansion bolts shall be free of paint and oil stain shall be removed. (G) The support and hanger shall not be installed at the air outlet, valve and inspection hole to avoid hindering the operation. The hanger shall not be directly hung on the flange.
(G) The insulation air duct shall not directly contact with the support, but shall be padded with solid wooden strips with the same thickness as the insulation layer.
(H) The spacing between supports and hangers of air duct shall meet the design requirements. If there is no design requirement, the spacing of uninsulated horizontal air duct shall not be greater than four meters if its diameter or side length is less than 400 mm; The distance between diameters or side lengths greater than 400mm shall not be greater than 3m; The spacing between supports of uninsulated vertical air duct shall not be more than four meters, and each riser shall have at least two supports.
The above is a question about the relevant content of "understanding the installation and intermediate inspection of air duct from three aspects". If you have any doubts or needs, you can come to our website at any time http://www.teen-livesexshows.com Consult!