| 摘要 |
FIELD: pipe line transport. SUBSTANCE: gas main designed for carrying natural gas consists of linear section provided with pipe and devices for measuring pressure of gas being carried; pipe of linear section is made of flexible gastight material, for example, fabric duplicated by gastight film at diameter of from 1.0 to 20 and fixed at rigid supports whose height ranges from 2 to 10 diameters of above-mentioned pipe which are located at distance from each other ranging from 10 to 25 heights of above-mentioned supports. Pipe of linear section of gas main is provided with stiffening members at points where it is secured to supports; stiffening members are made from flexible material having low coefficient of linear elongation. Supports are provided with braces and their upper parts are provided with brackets; length of horizontal portion of these brackets exceeds diameter of pipe of gas main linear section. Gas main is provided with shut-off valves. Secured on surface of linear section of pipe are current-conducting members. EFFECT: ecologically safe gas main; low expenses for assembly and operation and reduction of time required for assembly of gas main. |
