Two-phase closed thermosyphon with internal adiabatic section for efficient ultra-long-distance heat exchange

Abstract

A TPCT with an internal adiabatic section for efficient ultra-long-distance heat exchange is provided, and includes a condensation section, an adiabatic section and an evaporation section. It is internally equipped with a vapor guiding core pipe and a liquid guiding core pipe passing through the adiabatic section side by side. A top sealing partition plate and a bottom sealing partition plate are arranged at each end of the adiabatic section to fix a wall of TPCT, along with the vapor and liquid guiding core pipes. A cavity is formed by the top and bottom sealing partition plates, the wall of TPCT, the vapor and liquid guiding core pipes, remaining sealed from the outside. Both the top and bottom sealing partition plates are independently sealed from the vapor and liquid guiding core pipes.

What is claimed is: 
     
         1 . A two-phase closed thermosyphon comprising:
 a condensation section;   an adiabatic section for efficient ultra-long-distance heat exchange;   an evaporation section;   a vapor guiding core pipe passing through the adiabatic section;   a liquid guiding core pipe passing through the adiabatic section;   a top sealing partition plate and arranged at a first end of the adiabatic section and coupled to (i) a wall of the two-phase closed thermosyphon, (ii) the vapor guiding core pipe, and (iii) the liquid guiding core pipe;   a bottom sealing partition plate arranged at a second end of the adiabatic section and coupled to (i) the wall of the two-phase closed thermosyphon, (ii) the vapor guiding core pipe, and (iii) the liquid guiding core pipe;   a cavity enclosed and formed by (i) a portion of the top sealing partition plate, (ii) a portion of the bottom sealing partition plate, (iii) the wall of the two-phase closed thermosyphon, (iv) the vapor guiding core pipe, and (v) the liquid guiding core pipe, the cavity being sealed against the outside, and the top sealing partition plate and the bottom sealing partition plate being sealed against the vapor guiding core pipe and the liquid guiding core pipe,   wherein the vapor guiding core pipe has (i) a top in communication with a top portion of the condensation section and (ii) a bottom fixed to the bottom sealing partition plate such that the vapor core pipe is in communication with the evaporation section, and wherein the liquid guiding core pipe has (i) a top fixed to the top sealing partition plate such that the liquid guiding core pipe is in communication with the condensation section and (ii) a bottom in communication with a bottom portion of the evaporation section.   
     
     
         2 . The two-phase closed thermosyphon of  claim 1 , wherein the vapor guiding core pipe and the liquid guiding core pipe are open-ended pipes with cross sections of pipe ports of arbitrary shapes. 
     
     
         3 . The two-phase closed thermosyphon of  claim 1 , wherein a distance from a top opening of the vapor guiding core pipe to the top of the condensation section (i) is less than or equal to a length of the condensation section, and (ii) has a minimum value ensuring a maximum outlet flow rate of a vaporous working medium in the vapor guiding core pipe; and a distance from a bottom opening of the liquid guiding core pipe to the bottom of the evaporation section (i) is less than or equal to a length of the evaporation section, and (ii) has a minimum value ensuring a maximum outlet flow rate of a liquid working medium in the liquid guiding core pipe. 
     
     
         4 . The two-phase closed thermosyphon of  claim 3 , wherein the vaporous working medium flows through the vapor guiding core pipe; and the liquid working medium flows through the liquid guiding core pipe. 
     
     
         5 . The two-phase closed thermosyphon of  claim 1 , wherein surfaces of the top sealing partition plate and the bottom sealing partition plate have arbitrary shapes. 
     
     
         6 . The two-phase closed thermosyphon of  claim 1 , wherein the cavity is either filled with adiabatic material or vacuumed.