A counter-flow heat exchanger including a core region and a plenum region. The core region including a first set of heat exchanging passageways and a second set of heat exchanging passageways disposed at least partially therein. A plenum region is disposed adjacent opposed distal ends of the core region. Each of the plenum regions including a fluid inlet plenum, a fluid outlet plenum and a tube plate disposed therebetween. The first set of heat exchanging passageways is truncated and defines a first tube-side fluid flow path in a first direction. The second set of heat exchanging passageways defines a second tube-side fluid flow path in a second opposing direction. Each of the heat exchanging passageways extending from a fluid inlet plenum to a fluid outlet plenum. The tube plates and the core region include one of a cast metal formed thereabout each of the heat exchanging passageways or a braze bond formed between each of the heat exchanging passageways.

Heat exchanger for quenching reaction gas comprising a coolable double-wall tube including an inner tubular wall and an outer tubular wall, wherein said inner tubular wall is configured to convey said reaction gas to be quenched, and wherein a space defined by said inner tubular wall and said outer tubular wall is configured to convey a coolant; a tubular connection member having a bifurcating longitudinal cross-section comprising an exterior wall section and an interior wall section defining an intermediate space filled with refractory filler material, wherein a converging end of said connection member is arranged to be in connection with an uncoolable reaction gas conveying pipe, wherein said exterior wall section is connected with said outer tubular wall of said coolable double-wall tube, wherein an axial gap is left between said interior wall section and said inner tubular wall of said coolable double-wall tube.

A counter-flow heat exchanger including a core region and a plenum region. The core region including a first set of heat exchanging passageways and a second set of heat exchanging passageways disposed at least partially therein. A plenum region is disposed adjacent opposed distal ends of the core region. Each of the plenum regions including a fluid inlet plenum, a fluid outlet plenum and a tube plate disposed therebetween. The first set of heat exchanging passageways is truncated and defines a first tube-side fluid flow path in a first direction. The second set of heat exchanging passageways defines a second tube-side fluid flow path in a second opposing direction. Each of the heat exchanging passageways extending from a fluid inlet plenum to a fluid outlet plenum. The tube plates and the core region include one of a cast metal formed thereabout each of the heat exchanging passageways or a braze bond formed between each of the heat exchanging passageways.

A heat exchanger is provided for allowing heat to be exchanged between a first fluid and a second fluid, wherein the first fluid is a liquid. The heat exchanger comprises a core comprising: a plurality of first flow paths for the first fluid and a plurality of second flow paths for the second fluid; a plurality of pin components extending into the first flow paths; a plurality of fin components extending through the second flow paths; a plurality of first enclosure bars extending between adjacent separating plates that are either side of the first flow paths, the first enclosure bars being arranged to at least partially define the first flow paths; and a plurality of second enclosure bars extending between adjacent separating plates that are either side of the second flow paths, the second enclosure bars being arranged to at least partially define the second flow paths.

A heat exchanger (1) includes a first manifold (2) and a second manifold (3) fluidically connected by at least one tube (4) with at least one brazed joint between one manifold (2,3) and the tube (4). The brazed joint is made of braze material. The first manifold (2) and the second manifold (3) are formed from non-braze materials with a higher melting point than the braze material. The non-braze material does not melt during brazing. At least one of the manifolds (2,3) has at least two non-braze material layers.

Shell-and-tube equipment includes a shell that surrounds a plurality of tubes. At least one end of each tube is joined to an inlet tube-sheet provided with respective tube-sheet bores. The inlet tube-sheet is provided with a first side and with a second side. The inlet tube-sheet is connected to each tube of the tube bundle, on its second side, in such a way that each tube does not extend inside the respective tube-sheet bore. The inlet tube-sheet is provided, on at least part of its tube-sheet bores, with respective tubular protection devices. Each tubular protection device is made in the form of a butt, or a piece of tube, that extends from the first side of the inlet tube-sheet at a respective tube-sheet bore.

Problem to be Solved To provide a heat exchanger that can increase the performance by setting an optimal number of tube groups in a configuration where each of the tube groups is provided with headers. Solution The number of arrays of tube groups of a core section 2 is set to three rows. The number N of heating medium flow holes 21 per tube is set for each width dimension Tw of tubes 20, and the tubes 20 are formed such that the width dimension Tw of the tubes and a flow channel cross-sectional area S satisfy a relationship of S1SS2. Therefore, the number of arrays of the tube groups in the core section 2 can be set to an optimal number of arrays for improving the endothermic capacity and reducing the weight, and sufficient refrigerant flow rate and pressure resistance can be secured. As a result, even when there is a restriction on the size of the entire heat exchanger, a light high-performance heat exchanger can be configured. This is significantly advantageous when the heat exchanger is used as an evaporator of a vehicle air conditioning apparatus for which a reduction in the weight of the components and an increase in the performance are demanded.

A compressor system includes a compressor having a discharge port; and a shell and tube heat exchanger fluidly coupled to the discharge port. The heat exchanger includes a shell and a tube bundle disposed inside the shell. The shell includes a first flat portion extending along a longitudinal axis of the shell from a first end of the shell to a second end of the shell, and a second flat portion parallel to the first flat portion and extending along the longitudinal axis between the first end and the second end. The tube bundle is positioned between the first flat portion and the second flat portion, and extends along the longitudinal axis between the first end of the shell and the second end of the shell.

A heat transfer tube of a heat exchanger is provided with a first and a second annular convex portions of which outer diameters are partially expanded. The first annular convex portion is positioned on an inner face side of a side plate portion of a case of the heat exchanger and is engaged with a circumferential edge portion of a first hole portion provided for the side plate portion, or the first annular convex portion contacts under pressure with an inner circumferential face of the first hole portion. The second annular convex portion is positioned on an outer face side of a header constituting member and is engaged with a circumferential edge portion of a second hole portion. Thus the side plate portion, the heat transfer tube, and a header are relatively fixed by a simple means.

A heat exchanger having at least one collecting tank with a plurality of tube openings and with a tube bundle of tubes, whereby the ends of the tubes engage in openings of the collecting tank, whereby the tubes have a broad side with the length L with opposite tube side walls and two narrow sides at the ends with the width B each with a tube wall arc, whereby the tube wall arc has a diameter that is greater than the distance of the opposite tube side walls.