High efficiency shell-and-tube heat exchanger

摘要

As The present invention relates a shell-and-tube heat exchanger, uniform and high heat exchange efficiency is obtained, to provide what can cope with a large amount of heat exchange in the compact. A and inlet header 3A and outlet header 3B of the first fluid L1, the connection header 3C, and the shell 1 provided with a feed port 5A and outlet 5B of the second fluid L2, and the heat exchanger of the plurality of Multiple tubes units U1, U2 forming the toroidal which are arranged above and below a plurality of stages by turning each wound beside spiral tube 2 is mounted in the vertical arrangement, each heat exchange tube second tube units U1, U2 is toroidal and it is connected to one of the inlet header 3A and an outlet header 3B and the connection for the header 3C through the central space 20. The first fluid L1 flowing from the inlet header 3A, through a sequential connection header 3C from the side of the tube unit U1 is close to the discharge port 5B by feeding to the next order of the tube unit U2, and the first in the shell 1 a fluid L1 mutually to heat exchange the overall flow of the second fluid L2 as upside down directions. .BACKGROUND 4