Liquid distributor branch pipe structure and liquid distributor

A liquid distributor branch pipe structure, comprising two branch pipe components, wherein each branch pipe component comprises a stainless steel pipe and a copper connecting pipe welded to an end of the stainless steel pipe, and a stainless steel pipe on one of the branch pipe components is welded to a liquid distributor body;

• copper connecting pipes on the two branch pipe components are sleeved, and a brazed layer formed by non-furnace brazing is formed in a sleeving gap, a stainless steel pipe in one branch pipe component extends out of a corresponding copper connecting pipe to form a stainless steel extension section, the stainless steel extension section extends into the other branch pipe component, a blocking region is formed at an assembly gap or a spacing chamber between an outer peripheral wall of the stainless steel extension section and an inner peripheral wall of the other branch pipe component, to block extension of the brazed layer towards an end surface of the stainless steel extension section.