Abstract:
The invention relates to a plate heat exchanger in which the heat exchanging plates are brazed together along the periphery (17) of the exchanger and around port holes (2’,4’) in neighbouring plates to prevent that the heat exchanging flows mix when flowing through port channels comprising said port holes (2’,4’). In order to facilitate draining of heat exchanging media from the exchanger and in order to obtain better exploitation of the heat exchanger volume the sealing of neighbouring plates around port holes may according to the invention be effected in different plans (24, 25).
Abstract:
The dual fin enhancement preferably includes a dry area enhancement (32) superimposed upon a wet area enhancement (36). The dry area enhancement (32) includes a plurality of boundary layer restarts (33) for mixing temperature-stratified layers of air flowing over the dry region (28) of the fin (30) to enhance heat transfer between the fin (30) and the layers of air. The boundary layer restarts preferably include chevron shaped lances and are positioned adjacent a leading edge (25a) of the fin (30). The wet area enhancement (36) preferably includes corrugations (34) for collecting condensate formed on the wet region (26) of the fin (30). The invention also includes a method of making dual fin enhancements.
Abstract:
A heat exchanger for cooling (1), comprising a plurality of tubes (14) and (15) having a heat exchanging medium path (20) therein and disposed in parallel with each other in ventilating direction, and tanks (2) and (3) disposed at least on one side of the tubes (14) and (15), wherein a space is provided between the tube (14) and the tube (15) to provide a drain path (25), whereby condensed water produced on the surfaces of the tubes and fins can be drained efficiently from the drain path downwards so as to prevent the condensed water from reaching the leeward of the heat exchanger for cooling, from spattering further leeward from the heat exchanger for cooling, or a ventilation resistance from being increased due to clogging.
Abstract:
Die Erfindung betrifft eine Vorrichtung (1) zum Auffangen eines Kondensats umfassend eine Auffangrinne (2) mit einem Bodenbereich (3), wenigstens einer Seitenwand (4) und einer Kontaktfläche (5) zum Inkontaktbringen mit einem Gegenstück eines kondensatbildenden Elements. Die Auffangrinne (2) ist wenigstens teilweise umlaufend mit der Kontaktfläche (5) an das kondensatbildende Element anlegbar.
Abstract:
The present invention relates to a profile (1) of piping, in particular piping for making a heat exchanger (10) for a condensation boiler (20), characterized in that the cross-section of the profile (1) has a trapezoidal portion (2), having two bases (4, 5) and two sides (6, 7), and a triangular portion (3), having a base (6) and two sides (8, 9), wherein a first side (6) of the trapezoidal portion (2) coincides with the base (6) of the triangular portion (3), wherein the second side (7) and the bases (4, 5) of the trapezoidal portion and the sides (8, 9) of the triangular portion (3) form the inner walls of the profile (1), wherein a first angle (a) between the first base (4) of the trapezoidal portion (2) and the first side (8) of the triangular portion (3) adjacent to it is comprised between 45° and 135°, preferably 90°, wherein a second angle (β) between the second base (5) of the trapezoidal portion (2) and the second side (9) of the triangular portion (3) adjacent to it is comprised between 180° and 270°, preferably 225°. Further, the present invention concerns a coiled heat exchanger (10) for condensation boilers providing said profile (1) and a condensation boiler (20) providing said heat exchanger (10).
Abstract:
A combination refrigeration displacement and drain device is disclosed that can be mounted within a heat exchanger, such as a shell and tube heat exchanger, which may be used for example as a heat exchanger in a chiller unit, which may be used in an HVAC or refrigeration system. One example of such components can include heat exchangers, such as for example a condenser employing a gravity drain. Advantageously, the combination refrigeration displacement and drain device herein can provide a refrigerant charge reduction for example that is used in the chiller unit, while facilitating drainage out of the heat exchanger. The combination refrigeration displacement and drain device can alleviate the liquid refrigerant accumulation that may normally be necessary to induce flow in a gravity drain design.
Abstract:
본 발명은 냉각 자켓 및 이를 이용한 냉방 시스템에 관한 것으로서, 상기 냉각 자켓은, LNG 배관의 외주에 마련되고, 상기 LNG 배관의 외주면과 그 내주면 사이에 열교환부가 형성되도록 그 내경이 상기 LNG 배관의 외경보다 크게 형성되는 중공의 관 형상을 갖는 하우징, 상기 열교환부 내로 공기를 취입하도록 상기 하우징의 일측에 형성되는 인렛 및 상기 열교환부에서 냉각된 공기가 배출되도록 상기 하우징의 타측에 형성되는 아웃렛을 포함한다. 따라서 본 발명에 의하면 공기 중 수분의 응축 문제를 간단히 해결하고 간단한 구조로 효율적인 냉방을 가능케 할 수 있다.