PROCEDURE FOR CONTROL OF TECHNICAL STATE OF MAINS INTER-CROSSING (VERSIONS) Russian patent published in 2011 - IPC F17D5/06 

FIELD: machine building.

SUBSTANCE: procedure for control of technical state of mains inter-crossing (versions) refers to pipeline transport and can be used for control of technical state of mains inter-crossing. According to the first version there are measured values of stresses U₁, U₂ between ground and each main in a point of crossing. Further, there is determined modulus of difference lU₁-U₂I of measured values of stresses. A value of modulus of difference lU₁-U₂I is compared with a threshold value ε. When modulus of difference lU₁-U₂I exceeds threshold value ε, there is diagnosed hazardous state of main crossing. According to the second version of the procedure there are measured values of stresses lU₁-U₂I between ground and each main in a point of crossing and there is controlled measured values U₁, U₂ of stresses belonging to corresponding intervals of allowed values (U_H1…U_B1), (U_H2…U_B2). Also, in case, when at least one measured value of stresses U₁ or U₂ is beyond a corresponding allowed range there is diagnosed a hazardous state of main crossing.

EFFECT: elimination of main crossing hazardous state.

2 cl, 1 dwg