A liner tube for an inlet channel of a plate heat exchanger may include an open front side for supplying a refrigerant mass flow, an at least partially closed rear side, and at least two bag-like chambers running in a longitudinal direction of the liner tube. Each chamber may communicate with the open front side, and may have openings at chamber-dependent different positions for distributing the refrigerant mass flow in plate stacks of the plate heat exchanger.

A heat exchanger including a shell having a longitudinal axis, a plurality of baffles, such as elliptical sector-shaped baffles, each mounted in the shell at a helix angle H.sub.B to guide a fluid flow into a helical pattern through the shell. Each of the plurality of baffles includes an outer circumferential edge, a proximal radial edge, a distal radial edge, a proximal side, a distal side, and a plurality of spaced apart holes that are traversed by a plurality of axially extending tubes. Each of the first plurality of seal strips is disposed from a proximal of the plurality of baffles to a distal of the plurality of baffles.

An evaporator includes an enclosure with a lateral confinement shell with a substantially horizontal axis, which internally accommodates a dispenser of a coolant fluid and at least one tube bundle, which is arranged below the dispenser. The evaporator further includes exchanger tubes, which are passed through by a fluid to be cooled. At least one first group of exchanger tubes is arranged along rows which extend on substantially horizontal and mutually superimposed planes. The exchanger tubes of each row are arranged in at least one respective tray for collecting and distributing the liquid coolant fluid. Each tray has, along at least one first longitudinal edge, at least one first containment sidewall which is adapted to allow the liquid coolant fluid contained therein to fall by overflowing into an underlying tray and is provided in its bottom with openings for draining the liquid coolant fluid.

A heat exchanger includes a shell, refrigerant distributor, tube bundle, and first upper baffle. The shell has a refrigerant inlet through which at least refrigerant with liquid refrigerant flows and a shell refrigerant vapor outlet. A longitudinal center axis of the shell extends substantially parallel to a horizontal plane. The refrigerant distributor fluidly communicates with the refrigerant inlet and is disposed within the shell. The refrigerant distributor has at least one liquid refrigerant distribution opening that distributes liquid refrigerant. The tube bundle is disposed inside of the shell below the refrigerant distributor so that the liquid refrigerant discharged from the refrigerant distributor is supplied to the tube bundle. The first upper baffle is vertically disposed at a top of the tube bundle. The first upper baffle extends laterally outwardly from the tube bundle toward a first lateral side of the shell.

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.

The present invention application relates to a spiral heat exchanger and a manufacturing method therefor. The spiral heat exchanger comprises: a mandrel (1) having an axis extending in the direction of left and right; and a heat-conducting thin strip (2) spirally wound around the periphery of the mandrel (1) for at least three laps. The heat-conducting thin strip (2) of any two adjacent laps are spaced apart by a certain distance; baffle ribs (3) extending in the direction of left and right are supported between the heat-conducting thin strip (2) of any two adjacent laps; the baffle ribs (3) are arranged in sequence along a radial direction of the mandrel (1), so as to form a plurality of hot fluid flow channels (4) and a plurality of cold fluid flow channels (5) which are arranged alternately along the radial direction of the mandrel (1); each cold fluid outlet (5b) is provided with a first blocking bar (6) for blocking a portion of the cold fluid outlet (5b); each of the fluid outlet (4b) is provided with a second blocking bar (7) for blocking a portion of the hot fluid outlet (4b); the first blocking bars (6) are arranged in sequence along a first radial direction (R1), and the second blocking bars (7) are arranged in sequence along a second radial direction (R2). The spiral heat exchanger is compact and ingenious in structure and with a small flow resistance, has a large heat exchange area and high heat exchange efficiency, and is quite suitable situations both for gas-gas heat exchange and gas-liquid heat exchange.

A shell-and-tube heat exchanger according to the present invention comprises: an outer barrel having a cavity provided therein such that heating water flows along the same; a lower tube plate that covers an opening near one end of the outer barrel; an upper tube plate that covers an opening near the other end of the outer barrel, the upper tube plate providing an inner space in which a heat source is positioned; a plurality of flues for guiding combustion gas from the upper tube plate to the outside of the lower tube plate; and a main diaphragm arranged across a reference direction between the lower tube plate and the upper tube plate, a plurality of through-holes being formed in the main diaphragm such that the flues penetrate the same, wherein at least some of the through-holes constitute a large-width through-hole (single hole) that at least two of the flues penetrate together.

A heat exchanger (10) of heat pipe configuration for transferring heat between a first and second process streams via a heat transfer fluid comprises: at least one first process stream passage (19); at least one second process stream passage (29); and a shell (11) enclosing the first and second process stream passages (19, 29) within a volume (55). The volume (55), as a result of a heat transfer process, is fully filled with both vapour and liquid phases of the heat transfer fluid. The first and second process stream passages (19, 29) are spaced by a disengagement zone (50) enabling gravitational separation of said vapour and liquid phases and limiting accumulation of liquid phase heat transfer fluid about the first process stream passage(s) (19). Such heat exchangers can be used, among other applications, to replace a flash cooling stage in a Bayer process plant.

This disclosure describes an improved heat transfer system for use in reaction vessels used in chemical and biological processes. In one embodiment, a heat transfer baffle comprising two sub-assemblies adjoined to one another is provided.

A heat exchanger includes a shell, refrigerant distributor, tube bundle, and a first baffle. The shell has a refrigerant inlet through which at least refrigerant with liquid refrigerant flows and a shell refrigerant vapor outlet. A longitudinal center axis of the shell extends substantially parallel to a horizontal plane. The refrigerant distributor fluidly communicates with the refrigerant inlet and is disposed within the shell. The refrigerant distributor has at least one liquid refrigerant distribution opening that distributes liquid refrigerant. The tube bundle is disposed inside of the shell below the refrigerant distributor. The first baffle extends from a first lateral side of the shell. The first baffle is vertically disposed 5% to 40% of an overall height of the shell above a bottom edge of the shell, and extends laterally inwardly from the first lateral side by a distance not more than 20% of a width of the shell.