The invention discloses a
heat exchanger header air gathering
pipe assembly. A stainless steel connecting
pipe and stable frames are included. The stainless steel connecting
pipe comprises a first stainless steel connecting pipe body and a second stainless steel connecting pipe body which are each provided with at least two steel
branch pipes and the corresponding stable frame. A manufacturing method of the
heat exchanger header air gathering pipe
assembly comprises the following steps that firstly, stainless steel connecting pipe and steel
branch pipe preparing is conducted; secondly, stainless steel connecting pipe and steel
branch pipe welding work is conducted; and thirdly, air gathering pipe
assembly assembling is conducted. According to the
heat exchanger header air gathering pipe assembly and the manufacturing method thereof, the stainless steel connecting pipe is divided into two connecting pipe bodies, and when one connecting pipe body goes wrong, only the connecting pipe bodywith the fault needs to be replaced; and the design of the stable frames is adopted, and actual installation of the air gathering pipe assembly can be facilitated. A
welding device is adopted in theheat exchanger header air gathering pipe assembly,
electric resistance welding work between the stainless steel connecting pipe and the steel branch pipes is achieved, simultaneous
welding work is conducted between the multiple steel branch pipes and the stainless steel connecting pipe at the same time, and the
electric resistance welding rate and quality are effectively improved.