Vibration absorption tubing and manufacturing method thereof

A vibration absorbing pipe, comprising a corrugated pipe, wherein

• the corrugated pipe comprises a corrugated pipe body and two corrugated pipe connecting sections, and two ends of the corrugated pipe body are each provided with one corrugated pipe connecting section;
• the vibration absorbing pipe further comprises two adaptors, each adaptor comprises a first adaptor fitting portion that fits with the corresponding corrugated pipe connecting section, and the corrugated pipe is welded to the adaptors through the corrugated pipe connecting sections;
• each of the two adaptors has an inner cavity, and the inner cavity of each adaptor is in communication with an inner cavity of the corrugated pipe;
• and
• the respective corrugated pipe connecting section is at least partially located in the corresponding adaptor, the corrugated pipe connecting sections are used for fitting with the adaptors, an outer wall portion of the corresponding corrugated pipe connecting section is fixed to at least a portion of an inner wall portion of the first adaptor fitting portion by welding, and a weld seam between the corrugated pipe and each adaptor is at least partially located at the corresponding corrugated pipe connecting section and/or an inner side of the corresponding adaptor;
• and wherein
• the vibration absorbing pipe further comprises two connecting pipes;
• each adaptor comprises an inner boss, and the respective inner boss is located at a middle portion of the inner cavity of the corresponding adaptor;
• and
• the corrugated pipe is fixed to the connecting pipes through the adaptors, the respective connecting pipe is at least partially located in the corresponding adaptor, at least a part of an outer wall portion of the respective connecting pipe is fixed to at least a part of an inner wall portion of a second adaptor fitting portion of the corresponding adaptor by welding, and a weld seam between the respective connecting pipe and the corresponding adaptor is at least partially located at the respective connecting pipe and/or the inner side of the corresponding adaptor,
• a portion between the respective corrugated pipe connecting section and the corresponding first adaptor fitting portion is at least partially provided with a fitting clearance, the fitting clearance is arranged to extend axially, the fitting clearance is filled with solder, and a length of the fitting clearance in an axial direction is greater than twice a wall thickness of the corresponding corrugated pipe connecting section;
• and
• a fitting clearance is provided between the respective connecting pipe and the corresponding second adaptor fitting portion, the fitting clearance is arranged to extend axially, and the fitting clearance is filled with solder;
• the respective connecting pipe comprises a connecting pipe joint section, and a length of the fitting clearance between the connecting pipe joint section and the corresponding second adaptor fitting portion is greater than twice a wall thickness of the corresponding connecting pipe joint section,
• the vibration absorbing pipe comprises the two connecting pipes, a material of each connecting pipe is different from a material of the corrugated pipe, the corrugated pipe is made of stainless steel, each connecting pipe is made of copper or aluminum, and each adaptor is made of red copper;
• and
• the vibration absorbing pipe comprises a protection mesh, the protection mesh is made of stainless steel, each corrugated pipe connecting section is welded to the corresponding adaptor, and the respective adaptor is welded to the corresponding connecting pipe;
• the protection mesh is a stainless steel braided mesh sleeve, a braiding angle of the stainless steel braided mesh sleeve ranges from 40° to 60°, and a coverage rate of the stainless steel braided mesh sleeve ranges from 75% to 95%.