RU95104520A - Evaporative chamber of loop thermal tube - Google Patents

Abstract

FIELD: heat-power engineering; removal of heat from thermally stressed objects. SUBSTANCE: evaporative chamber has housing with lateral wall 1 and end walls 2 and 3. Capillary porous packing 4 is located inside housing. Packing has central blind passage 5 whose lateral and end surfaces are in thermal contact with additional inner wall 6 of chamber. Packing 4 forms circular passage 7 with lateral wall 1 lengthwise which is bounded with projection 8 of packing 4 and clearances 9 and 10 with end walls 2 and 3 of chamber, respectively. Longitudinal bores 11 are provided along thermocontact surface of packing 4 with inner wall 6; threaded grooves 12 are provided on thermocontact surface of inner wall 6 which form system of grooves for discharge of steam to clearance 10 which is used as steam header communicating with steam line 13 of loop thermal tube. Circular clearance 7 and end clearance 9 form chamber for accumulating the liquid flowing from condensate line 14. Chamber of other version is provided with through central passage. According to third version, chamber is made in the form of truncated cone and according to last version, chamber is made in the form of cylinder changing to truncated cone. EFFECT: enhanced efficiency of heat removal from heat generating sources. 4 cl, 5 dwg

Claims (1)

The invention relates to the field of heat engineering, in particular, to heat pipes, and can be used to remove heat from heat-stressed objects. The invention is aimed at providing efficient heat dissipation from heat sources, which require uniform cooling of all or most of the heat-generating surface during their operation. The evaporation chamber comprises a housing including a side wall 1 and end walls 2 and 3. A capillary-porous nozzle 4 is located inside the housing, having a dead end central channel 5, the side and end surfaces of which are in thermal contact with the additional inner wall 6 of the chamber. The nozzle 4 forms an annular gap 7 with a side wall 1 at a length limited by the protrusion 8 of the nozzle 4 and the gaps 9 and 10 with the end walls 2 and 3 of the chamber, respectively. Longitudinal grooves 11 are made along the thermal contact surface of the nozzle 4 with the inner wall 6, and threaded grooves 12 are formed on the thermal contact surface of the inner wall 6, which form a single groove system for diverting steam into the gap 10, which acts as a steam manifold in communication with the steam conduit 13 of the contour heat pipe. The annular gap 7 together with the end gap 9 form a single cavity for accumulating liquid coming from the condensate conduit 14. Another variant of the chamber has a through central channel, the chamber may have the shape of a truncated cone or the shape of a cylinder turning into a truncated cone.