| 摘要 |
FIELD: power engineering, particularly gas cooling equipment. ^ SUBSTANCE: method involves producing least two intermediate header body sections provided with orifices adapted to receive connection pipes having flanges to connect thereof with gas inlet or outlet chambers of heat-exchanging section of the gas air-cooling plant; manufacturing end body members shaped as doubly curved bottoms; producing flanges with connection pipes; assembling and welding header body and welding bottoms to intermediate sections of header body. Header body is created by joining intermediate sections to central cylindrical one to form T-member having two coaxial cylindrical parts adjoining intermediate sections and having diameters of not less than intermediate section diameters. Adjoined to above cylindrical parts is the third cylindrical part adapted to be connected to gas pipeline. The third cylindrical part is inclined substantially at 90° to above cylindrical parts and extends substantially at 90° to plane passing through vertical axes of the connection pipes of intermediate sections. Diameter of the third cylindrical part is equal to 0.81-1.10 diameters of cylindrical body part. Technological support to facilitate manufacture of gas inlet and outlet header body or header body sections has frame with at least two support members, namely with support plates arranged from both sides from medium vertical plane of housing body to be produced and spaced apart from longitudinal axis thereof to support contact points in lower body half for radial distance corresponding to outer body radius. Each support member comprises not less than one flat part tangential to corresponding radius and arranged to be supported along cylindrical body section generator or cylindrical body part generator so that above radius is spaced an angular distance equal to 15-75° from vertical line in plane transversal to the generator in both opposite directions beginning from lower point of cross-section of the body or body section preferably shaped as solids of revolution. ^ EFFECT: increased manufacturability, reduced labor inputs and material consumption for header components assemblage, increased quality, reliability and service life of header characterized with elevated internal pressure due to optimized parameters of header body sections and technological supports, increased assemblage accuracy and improved header body stability during boring operations performing. ^ 18 cl, 5 dwg |
