Patent ID: 11913735
Assignee: HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A heat exchanger, comprising:
a collecting pipe having a first end, a second end, a pipe wall and an inner cavity; the pipe wall of the collecting pipe defining a plurality of insertion holes which are disposed along a length direction of the collecting pipe;
a baffle disposed in the inner cavity of the collecting pipe, the baffle extending along the length direction of the collecting pipe so as to separate the inner cavity of the collecting pipe into a first cavity and a second cavity; the baffle defining a plurality of slots which are disposed along an extending direction of the baffle, the plurality of slots and the plurality of insertion holes being disposed in a one-to-one correspondence manner, the plurality of slots extending through the baffle along a thickness direction of the baffle;
a plurality of heat exchange tubes disposed along the length direction of the collecting pipe, each of the heat exchange tubes having a first end and an inner channel, each heat exchange tube extending through a corresponding insertion hole and a corresponding slot so that the first end of each heat exchange tube is inserted into the second cavity, and at least part of each heat exchange tube is disposed in the first cavity; the inner channel of the heat exchange tube being in communication with the second cavity of the collecting pipe;
a distribution pipe partially disposed in the second cavity, the distribution pipe having a first end, a second end, a pipe wall and an inner space, the first cavity being separated from the distribution tube by the baffle along the thickness direction of the baffle, the first end of the distribution pipe being a fluid inlet, the second end of the distribution pipe being closed, the pipe wall of the distribution pipe defining a plurality of through holes which are in communication with the inner cavity of the collecting pipe and the inner space of the distribution pipe, one part of all of the through holes being located between the first end of the collecting pipe and a middle position of the collecting pipe in the length direction, the other part of all of the through holes being disposed along the length direction of the collecting pipe, distances between adjacent through holes being equal, the other part of all of the through holes being located between the middle position of the collecting pipe in the length direction and the second end of the collecting pipe, and the other part of all of the through holes comprising a first through hole, a second through hole, a third through hole, . . . , an (n−1)th through hole and an nth through hole in sequence in a direction from the middle position of the collecting pipe along the length direction toward the second end of the collecting pipe, wherein a value of n is an integer greater than or equal to five, a distance between an (i+1)th through hole and an ith through hole is:
di=λαiL0, i=1, 2, . . . n−1, α=0.618, L0 is a distance between adjacent heat exchange tubes, and λ is a coefficient.