METHOD TO PREVENT DETONATION OF FLAMMABLE GAS-AIR MIXTURE IN PIPE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC A62C4/02 

FIELD: heating.

SUBSTANCE: invention is related to the equipment to ensure fire and explosion safety and can be used in gas, oil, chemical and other industries. And in particular, it can used to ensure safety of engineering procedures involving flammable gases. Namely, the invention can be used in glycol or methanol fire regeneration units where flammable air-methane mixture is produced. The method implies introduction of process partitions along the whole pipe length inside it with certain distances between them that do not exceed the length of a predetonation section. The flame front in the central pipe zone is periodically suppressed by the deformation of the original stretched flame front, the flame front is directed straightly along the whole volume of the pipe through each partition distributing it to the border zones near the pipe walls by swirling the hot gas jets tangentially to the plane forming pipe sections, the front of the flame moving inside the pipe is retarded between the partitions, continuous deflagration burning process after each partition and along the whole pipe length is maintained. For the purpose of method implementation a device is proposed, it is made as an antidetonation insert and installed in the pipe, in the inner cavity of which detonation shock waves can be generated. The antidetonation insert comprises a rod and disks set on it and fitted by swirling blades bent at an angle to the axis's perpendicular.

EFFECT: deflagration continuous burning in the whole volume and along the whole length of a pipe is provided and generation of detonation shock waves is prevented.

2 cl, 3 dwg