Heat Exchanger Structure

Abstract

A heat exchanger includes a shell; multiple exchange tubes disposed in multiple layers from the center to the wall of the shell inside the shell; a first board and a second board arranged in parallel inside the shell; and a first spiral gas tube winding in a same direction, the first spiral gas tube having a first wall provided with a plurality of first gas pores, and the first spiral gas tube has a first inlet and a first outlet that respectively communicates with out-source gas. The heat exchanger can carry out online disturbance to the fluid in the shell internally, even in the case that the fluid media are dirty and viscous, the mixing of the fluid media tends to be uniform continuously, thus effectively improving the heat exchange effect, and convenient for cleaning, purging and maintaining the interior of the device.

1 . A heat exchanger comprising:
 a shell with a top and a bottom having a center and a wall;   multiple exchange tubes disposed in multiple layers from the center of the shell to the wall of the shell inside the shell, each layer of exchange tubes having at least one exchange tube, each exchange tube having two ends and a spiral form with a plurality of windings;   a first board and a second board arranged in parallel inside the shell, each of the first board and the second board having a plurality of holes, two ends of each exchange tube respectively passing through a hole on the first board and a hole on the second board; and   a first spiral gas tube winding in a same direction with two ends disposed inside the shell, two ends of the first spiral gas tube passing through respectively a hole in the first board and a hole on the second board, the first spiral gas tube having a first wall, the first wall facing towards the bottom of the shell being provided with a plurality of first gas pores, and the first spiral gas tube has a first inlet and a first outlet that respectively communicates with out-source gas.   
     
     
         2 . The heat exchanger of  claim 1 , further comprising a second spiral gas tube, the second spiral gas tube having a second wall facing towards the top of the shell and being provided with a plurality of second gas pores, the second spiral gas tube has a second inlet and a second outlet that respectively communicates with out-source gas, and a valve is provided on the second inlet and the second outlet of the second gas tube. 
     
     
         3 . The heat exchanger of  claim 2 , wherein the spiral second gas tube has multiple second gas pores with a porosity between 2% and 10% and the second gas pores are separated from each other by a predetermined distance. 
     
     
         4 . The heat exchanger of  claim 1 , wherein adjacent two layers of exchange tubes wind in opposite directions. 
     
     
         5 . The heat exchanger of  claim 4 , wherein the first gas pores have a porosity between 2% and 10% and are distributed in an equal interval. 
     
     
         6 . The heat exchanger of  claim 5 , wherein each layer of exchange tubes is composed of multiple exchange tubes winding in a same direction. 
     
     
         7 . The heat exchanger of  claim 4 , further comprising a core with two ends disposed between the first board and the second board, and each end of the core respectively supported by the first board and the second board, all layers of exchange tubes surround in the center of the core with spiral windings.