| CPC F28D 7/0066 (2013.01) [F28D 7/1692 (2013.01); F28F 19/04 (2013.01); F28D 2021/0022 (2013.01)] | 20 Claims |
|
1. A flow reactor comprising three flow paths of a first flow path, a second flow path, and a third flow path all of which spirally circulates in a space formed between an inner tube and an outer tube that are concentrically arranged, wherein
a heat exchange is performed between a fluid to be processed, which is a first fluid flowing through the first flow path, and a second fluid and a third fluid flowing through the second flow path and the third fluid path via a heat transfer body,
wherein the flow reactor includes:
the inner tube and the outer tube;
an inner heat transfer body and an outer heat transfer body disposed in the space formed between the inner tube and the outer tube,
wherein a first distance between a peak portion of the inner heat transfer body and a valley portion of the outer heat transfer body in a radial direction defines a maximum flow path width of the first flow path, and a second distance between a valley portion of the inner heat transfer body and a peak portion of the outer heat transfer body in the radial direction defines a minimum flow path width of the first flow path, the minimum flow path width being smaller than the maximum flow path width,
wherein a cross sectional shape of the inner and outer heat transfer bodies in an axial-direction cross sectional view is a thread shape, and the inner and outer heat transfer bodies are assembled into a thread shape; by changing shapes of an external thread portion and an internal thread portion, a flow path area of the first flow path is changed, and the second flow path and the third flow path are spirally formed; then the heat exchange is performed via the inner and outer heat transfer bodies, and
wherein an angle formed by the peak portion of the inner heat transfer body is larger than an angle formed by the valley portion of the outer heat transfer body.
|