Shell-and-tube heat exchanger with distributed inlet-outlets

Abstract

A shell-and-tube heat exchanger with distributed inlet-outlets includes a shell, heat exchanging tubes, a tube plate, an outlet fluid distribution device and an inlet fluid distribution device. Each of the inlet and outlet fluid distribution devices includes a tube side connecting pipe and at least one bell-shaped tube. A fine end of the bell-shaped tube is connected with the tube side connecting pipe, the tube side connecting pipe passes through the tube plate, a magnifying sealing plate is installed at a magnifying end of the bell-shaped tube, the magnifying sealing plate has circular holes respectively corresponding to the heat exchanging tubes, the heat exchanging tubes are respectively installed within the circular holes of the magnifying sealing plate and communicated with an interior of the bell-shaped tube. The shell-and-tube heat exchanger is reasonable in design, strong in practicality and simple in preparation process, so that it has broad application prospects.

What is claimed is: 
     
         1 . A shell-and-tube heat exchanger with distributed inlet-outlets, comprising a shell, multiple heat exchanging tubes, a tube plate, an outlet fluid distribution device and an inlet fluid distribution device, wherein: each of the outlet fluid distribution device and the inlet fluid distribution device comprises a tube side connecting pipe and at least one bell-shaped tube; a fine end of the bell-shaped tube is connected with the tube side connecting pipe, the tube side connecting pipe passes through the tube plate, a magnifying sealing plate is installed at a magnifying end of the bell-shaped tube, the magnifying sealing plate has multiple circular holes which are respectively corresponding to the heat exchanging tubes, the heat exchanging tubes are respectively installed within the circular holes of the magnifying sealing plate and communicated with an interior of the bell-shaped tube. 
     
     
         2 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 1 , wherein: a sieve structure, having multiple evenly distributed holes, is located in the bell-shaped tube of the inlet fluid distribution device; the sieve structure has a groove, an opening of the groove faces towards the fine end of the bell-shaped tube. 
     
     
         3 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 2 , wherein: the distributed holes are circular, triangular or polygonal. 
     
     
         4 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 1 , further comprising a split-ranging inlet-outlet device, wherein: the split-ranging inlet-outlet device comprises a U-shaped thick tube, two ends of the U-shaped thick tube penetrate through a commutating sealing plate, the inlet fluid distribution device is installed at an outlet of the U-shaped thick tube, the outlet fluid distribution device is installed at an inlet of the U-shaped thick tube. 
     
     
         5 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 2 , further comprising a split-ranging inlet-outlet device, wherein: the split-ranging inlet-outlet device comprises a U-shaped thick tube, two ends of the U-shaped thick tube penetrate through a commutating sealing plate, the inlet fluid distribution device is installed at an outlet of the U-shaped thick tube, the outlet fluid distribution device is installed at an inlet of the U-shaped thick tube. 
     
     
         6 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 3 , further comprising a split-ranging inlet-outlet device, wherein: the split-ranging inlet-outlet device comprises a U-shaped thick tube, two ends of the U-shaped thick tube penetrate through a commutating sealing plate, the inlet fluid distribution device is installed at an outlet of the U-shaped thick tube, the outlet fluid distribution device is installed at an inlet of the U-shaped thick tube. 
     
     
         7 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 1 , wherein: a gas-liquid mixing device is set in the tube side connecting pipe of the inlet fluid distribution device. 
     
     
         8 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 2 , wherein: a gas-liquid mixing device is set in the tube side connecting pipe of the inlet fluid distribution device. 
     
     
         9 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 3 , wherein: a gas-liquid mixing device is set in the tube side connecting pipe of the inlet fluid distribution device. 
     
     
         10 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 7 , wherein: the tube side connecting pipe of the inlet fluid distribution device comprises a straight tube portion and a bell-shaped magnifying portion, a fine end of the bell-shaped magnifying portion is connected with the straight tube portion, a seal plate is installed at a magnifying end of the bell-shaped magnifying portion, the seal plate has multiple through-holes which are corresponding to the thin ends of all bell-shaped tubes, the fine ends of all the bell-shaped tubes are respectively installed within the through-holes of the seal plate, and communicated with an interior of the bell-shaped magnifying portion. 
     
     
         11 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 8 , wherein: the tube side connecting pipe of the inlet fluid distribution device comprises a straight tube portion and a bell-shaped magnifying portion, a fine end of the bell-shaped magnifying portion is connected with the straight tube portion, a seal plate is installed at a magnifying end of the bell-shaped magnifying portion, the seal plate has multiple through-holes which are corresponding to the thin ends of all bell-shaped tubes, the fine ends of all the bell-shaped tubes are respectively installed within the through-holes of the seal plate, and communicated with an interior of the bell-shaped magnifying portion. 
     
     
         12 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 9 , wherein: the tube side connecting pipe of the inlet fluid distribution device comprises a straight tube portion and a bell-shaped magnifying portion, a fine end of the bell-shaped magnifying portion is connected with the straight tube portion, a seal plate is installed at a magnifying end of the bell-shaped magnifying portion, the seal plate has multiple through-holes which are corresponding to the thin ends of all bell-shaped tubes, the fine ends of all the bell-shaped tubes are respectively installed within the through-holes of the seal plate, and communicated with an interior of the bell-shaped magnifying portion. 
     
     
         13 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 7 , wherein: the heat exchanging tubes are internal thread tubes, an inner wall thereof has positive and negative spiral alternately-circulating continuous projections or grooves. 
     
     
         14 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 10 , wherein: the heat exchanging tubes are internal thread tubes, an inner wall thereof has positive and negative spiral alternately-circulating continuous projections or grooves. 
     
     
         15 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 12 , wherein: the heat exchanging tubes are internal thread tubes, an inner wall thereof has positive and negative spiral alternately-circulating continuous projections or grooves. 
     
     
         16 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 13 , wherein: a draft tube is located at a shell side inlet-outlet of the shell. 
     
     
         17 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 14 , wherein: a draft tube is located at a shell side inlet-outlet of the shell. 
     
     
         18 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 15 , wherein: a draft tube is located at a shell side inlet-outlet of the shell. 
     
     
         19 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 16 , wherein: the seal plate and the magnifying sealing plate are flat, spherical, oval or other convex shapes. 
     
     
         20 . The shell-and-tube heat exchanger with the distributed inlet-outlets, as recited in  claim 18 , wherein: the seal plate and the magnifying sealing plate are flat, spherical, oval or other convex shapes.