摘要:
A heat exchanger and an integral sealing device (100, 200, 300, 400, 500) used for a manifold (10, 10') in the heat exchanger. The manifold (10, 10') on one side of the heat exchanger comprises two pipelines (11, 12, 11', 12') which are parallel to each other and communicated with each other. A first bore (13) and a second bore (14) are formed in two pipelines (11, 12, 11', 12') due to a drilling process. The frrst bore (13) is used for enabling refrigerant to flow from a cavity of one of two pipelines (11, 12, 11', 12') into a cavity of the other pipeline. The second bore (14) is a process hole left by the drilling process, and the integral sealing device (100, 200, 300, 400, 500) seals the process hole.
摘要:
Disclosed herein is a shell and tube heat exchanger including a shell having a cylindrical body, a pair of tube sheets installed to divide the inside of the shell and provided with a plurality tube insertion holes formed therethrough so as to face each other, and a plurality of tubes respectively welded to the tube insertion holes facing each other to connect the tube sheets, and further including a plurality of tube joint members having the same diameter as that of the tubes and respectively inserted into the tube insertion holes of the tube sheets, and a plurality of ring wires manufactured by cutting a welding wire having a long length into pieces having a designated length and bending the pieces into a ring shape and inserted into the outer circumferences of both ends of the tubes, wherein ring-shaped tube sheet grooves spaced from the tube insertion holes by a designated distance in the outer circumferential surface are formed on each of facing surfaces of the tube sheets so as to form joint parts, both ends of the tubes are inserted into the tube insertion holes of the tube sheets facing each other such that both ends of the tubes contact one end of each of the tube joint members facing the ends of the tubes and are located within the recessed distance range of the tube sheet grooves, and the ends of the tubes together with the tube joint members and the joints are welded to the respective tube sheets by a welding torch inserted into each of the tube joint members using the ring wires as a filler metal.
摘要:
A heat exchanger and an integral sealing device (100, 200, 300, 400, 500) used for a manifold (10, 10') in the heat exchanger. The manifold (10, 10') on one side of the heat exchanger comprises two pipelines (11, 12, 11', 12') which are parallel to each other and communicated with each other. A first bore (13) and a second bore (14) are formed in two pipelines (11, 12, 11', 12') due to a drilling process. The frrst bore (13) is used for enabling refrigerant to flow from a cavity of one of two pipelines (11, 12, 11', 12') into a cavity of the other pipeline. The second bore (14) is a process hole left by the drilling process, and the integral sealing device (100, 200, 300, 400, 500) seals the process hole.
摘要:
A heat transfer tube is provided. The heat transfer tube includes: a tube body made of an extruded material of an aluminum alloy having a composition including: 0.3 mass% or more and less than 0.8 mass% of Mn; more than 0.1 mass% and less than 0.32 mass% of Si; 0.3 mass% or less of Fe; 0.06 mass% or more and 0.3 mass% or less of Ti; and Al balance including inevitable impurities, a ratio of a Mn content to a Si content, Mn%/Si%, exceeding 2.5; and a Zn-containing layer provided to an outer surface of the tube body.
摘要:
The present application relates to a method of manufacturing a tube sheet (7) and heat exchanger assembly for a pool reactor or pool condenser for use in the production of urea from ammonia and carbon dioxide, wherein the method comprises manufacturing of the tube sheet (7) from a carbon steel material grade and providing said tube sheet (7) with corrosion protective layers (8, 9) of an austenitic- ferritic duplex stainless steel grade, wherein the heat exchanger comprises at least one U-shaped tube (13) of an austenitic-ferritic duplex stainless steel grade, the method further comprises inserting at least two sleeves (11) of an austenitic-ferritic duplex stainless steel grade through the tube sheet (7) such that both ends of the sleeve (11) extend in a direction away from the tube sheet (7), the method further comprises connecting the sleeves (11), at least the opposing ends thereof, to at least the protective layers (8,9) of the tube sheet (7) and finally, connecting both ends of the at least one U-shaped tube (13) to the respective sleeves (11).
摘要:
Die Erfindung betrifft einen Wärmetauscher (100) zum Wärmetausch zwischen einem ersten Fluid (I) einerseits, insbesondere einem Abgas und/oder einer Ladeluft, und einem zweiten Fluid (II) andererseits, insbesondere einem Kühlmittel, mit einem Block (10) zur voneinander getrennten und wärmetauschenden Führung des ersten und des zweiten Fluids (I, II) aufweisend: -eine Anzahl von dem ersten Fluid (I) durchströmbaren Strömungskanälen (30) -eine die Strömungskanäle (30) aufnehmende, von dem zweiten Fluid (II) durchströmbare Kammer (41), -ein Gehäuse (40), in dem die Kammer (41) und die Strömungskanäle (30) angeordnet sind, sowie -ein das erste und zweite Fluid (I, II) weitgehend trennenden Boden (50), welcher die in Form von Rohren gebildeten Strömungskanäle (30) auf Abstand hält, wobei -ein Halteabschnitt (H) eines Rohres in einer Öffnung (51) des Bodens (50) gehalten ist und die Öffnung (51) einen Kragen (52) mit einer den Öffnungsbereich erweiternden Einführschräge (1) aufweist. Erfindungsgemäß ist dabei vorgesehen, dass der Kragen (52) an wenigstens einer Seite eine die Einführschräge (1) zum Inneren des Öffnungsbereichs verformende Einwölbung (2) aufweist.
摘要:
Le tube plat, pour un échangeur de chaleur, notamment de véhicule automobile, comporte un insert (60) possédant un pli central (62) formant une cloison de séparation qui délimite deux canaux de circulation (66, 68) pour un fluide caloporteur. L'insert (60) comporte des ondulations (70). L'une de ces ondulations constitue la cloison de séparation (62). Avantageusement, les ondulations (70) de l'insert situées de part et d'autre du pli central (62) comportent des persiennes. Le tube peut être fermé à une extrémité, ou comporter deux extrémités ouvertes.