Heat exchanger and heat exchange system comprising the heat exchanger

Abstract

A heat exchanger and a heat exchange system including the heat exchanger. The heat exchanger includes a shell and heat exchange tubes located in the shell, and further includes a flow guide device which is disposed in the shell and includes a receiving portion arranged between two adjacent rows of heat exchange tubes and extending substantially horizontally along a length direction of the shell for receiving liquid, and a guiding portion arranged to guide the liquid received by the receiving portion to a bottom inside the shell.

What is claimed is: 
     
         1 . A heat exchanger, comprising a shell and heat exchange tubes located in the shell, wherein the heat exchanger further comprises a flow guide device, which is disposed in the shell and comprises a receiving portion arranged between two adjacent rows of heat exchange tubes and extending substantially horizontally along a length direction of the shell for receiving liquid, and a guiding portion arranged to guide the liquid received by the receiving portion to a bottom inside the shell. 
     
     
         2 . The heat exchanger according to  claim 1 , wherein the receiving portion comprises a first portion and a second portion that are at the same height or different heights in a height direction of the shell, and the guiding portion is arranged to be located between the first portion and the second portion and face a guiding groove at the bottom inside the shell. 
     
     
         3 . The heat exchanger according to  claim 1 , wherein at least a part of the receiving portion is configured to have a contour that urges the liquid to flow toward the guiding portion. 
     
     
         4 . The heat exchanger according to  claim 3 , wherein the receiving portion is configured such that an end portion on at least one side thereof is higher than a middle part of the receiving portion in a height direction of the shell, a gas flow channel is formed between the end portion and an inner wall of the shell, and the guiding portion is connected to the receiving portion and arranged in the middle part of the receiving portion. 
     
     
         5 . The heat exchanger according to  claim 1 , wherein the receiving portion is arranged such that the number of heat exchange tubes located above the receiving portion is not larger than the number of heat exchange tubes located below the receiving portion. 
     
     
         6 . The heat exchanger according to  claim 1 , wherein the receiving portion is arranged to be at a first preset distance from the nearest row of heat exchange tubes located above the receiving portion and at a second preset distance from the nearest row of heat exchange tubes located below the receiving portion, the second preset distance being not smaller than the first preset distance. 
     
     
         7 . The heat exchanger according to  claim 1 , wherein the receiving portion is arranged to extend to tube plates at both ends of the heat exchanger. 
     
     
         8 . The heat exchanger according to  claim 1 , further comprising:
 a support member arranged in the shell for supporting at least part of the heat exchange tubes; and/or   a superheated gas diffuser arranged above the heat exchange tubes for guiding fluid entering from an inlet of the heat exchanger to diverge from both sides of the superheated gas diffuser; and/or   a supercooling chamber arranged inside the shell and communicating with an outlet of the heat exchanger, wherein the liquid at the bottom inside the shell enters the supercooling chamber through an opening at the bottom of the supercooling chamber.   
     
     
         9 . The heat exchanger according to  claim 8 , wherein the heat exchanger is provided with at least two support members and the flow guide device is arranged at least between two adjacent support members. 
     
     
         10 . A heat exchange system, comprising the heat exchanger according to  claim 1 .