Evaporator with absorption type core filled with carbon fibers or materials with high water absorbability

Abstract

The invention discloses an evaporator with an absorption type core filled with carbon fibers or materials with high water absorbability. The evaporator comprises an evaporator outer tube, an ammonia tube, a carbon fiber or high-water-absorbability material layer and a pure helium tube, the carbon fiber or high-water-absorbability material layer is arranged in the inner wall of the evaporator outer tube, and the liquid ammonia tube and the pure helium tube are disposed in the evaporator outer tube. The materials with high water absorbability are cotton fabrics or polyvinyl alcohol fibers. Compared with the prior art, the evaporator has the advantages that 1), liquid ammonia can be prevented from quickly flowing in the tube, and flow rate can be controlled; and 2), the carbon fibers can absorb and store the liquid before the liquid is evaporated, evaporation density is improved, lower temperature level can be obtained, higher heat transfer temperature difference in a box can be obtained, refrigerating capacity is utilized more effectively, accordingly, efficiency is enhanced, and energy consumption is saved.

Description

technical field [0001] The invention relates to an evaporator which adopts an absorption core with good thermal conductivity, acid and alkali resistance, and certain water absorption performance, and uses carbon fibers or materials with strong water absorption as fillers. Background technique [0002] The invention of the modern single refrigerator is a revolution in the history of refrigerator development. In 1923, Swedish engineers Baltzar von Platen (1898-1984) and Carl Munters (Carl Munters, 1897-1989) successfully developed a modern refrigerator using the principle of "heat generates cold". In the refrigerator they invented, the coolant (ammonia water) absorbs heat and vaporizes (boils) in a closed system to lower the internal temperature of the refrigerator, thereby achieving the cooling effect. After the ammonia vapor is absorbed by the water, it is pumped back into the vaporizer of the refrigerator again. This is the world's first diffusion-absorption refrigerator. ...

AI Technical Summary

Problems solved by technology

This method is currently a common solution, but it cannot further improve the cooling performance of the core. At the same time, it bothers major manufacturers to a certain extent in terms of manufacturing cost and processing difficulty.

Images