Methods and devices heat or cool viscous materials, such as meat emulsions useful for producing food and other products. The devices have a heat exchanger including a first plate, a second plate attached to the first plate, and a first spacer and a second spacer arranged between the first plate and the second plate. The first plate, the second plate, the first spacer, and the second spacer define at least one temperature controlled passage for a product to pass through the heat exchanger.

A return waterbox for a heat exchanger, such as a shell-and-tube heat exchanger, is provided. The return waterbox may include an insert configured to direct a fluid flow(s) in the return waterbox. In some embodiments, such as in a two-pass heat exchanger, the insert can be configured to receive water from one portion of the heat exchanger tubes in the first pass and redirect the received water to another portion of the heat exchanger tubes in the second pass.

A heat exchanger (100) and a multi-split system having the same are provided. The heat exchanger (100) includes: a manifold (1) including a main body (11), an inlet (12) disposed in a bottom portion of the main body (11) and a plurality of split-flow ports distributed in a side wall of the main body (11) along a length direction thereof, in which the main body (11) includes a plurality of pipes from bottom to top, the pipe located downstream has a smaller flow area than the pipe located upstream in each two adjacent pipes, each pipe has a height no greater than 0.5 m, and a number of the pipes is 2≦N≦3; a header (2) communicated with the manifold (1) via a plurality of heat exchange tubes spaced apart from one another along an up and down direction, the header (2) having an outlet (21) for discharging a refrigerant.

A heat exchanger (100) and a multi-split system having the same are provided. The heat exchanger (100) includes: a manifold (1) including a main body (11), an inlet (12) disposed in a bottom portion of the main body (11) and a plurality of split-flow ports distributed in a side wall of the main body (11) along a length direction thereof, in which the main body (11) includes a plurality of pipes from bottom to top, the pipe located downstream has a smaller flow area than the pipe located upstream in each two adjacent pipes, each pipe has a height no greater than 0.5 m, and a number of the pipes is 2≦N≦3; a header (2) communicated with the manifold (1) via a plurality of heat exchange tubes spaced apart from one another along an up and down direction, the header (2) having an outlet (21) for discharging a refrigerant.

A heat exchanger includes first fluid passages that each have a first inlet that communicates into a first core passage and then a first outlet. The first inlet has a first inlet cross-sectional perimeter. The first core passage has a first core cross-sectional perimeter. Second fluid passages are interleaved with the first fluid passages. Each of the second passages have a second inlet that communicates into a second core passage and then a second outlet. The second inlet has a second inlet cross-sectional perimeter. The second core passage has a second core cross-sectional perimeter. The first and second core cross-sectional perimeters are larger than their respective first and second inlet cross-sectional perimeters. The first and second core passages are undivided from their respective first and second inlets to their respective first and second outlets.

A heat exchanger includes first fluid passages that each have a first inlet that communicates into a first core passage and then a first outlet. The first inlet has a first inlet cross-sectional perimeter. The first core passage has a first core cross-sectional perimeter. Second fluid passages are interleaved with the first fluid passages. Each of the second passages have a second inlet that communicates into a second core passage and then a second outlet. The second inlet has a second inlet cross-sectional perimeter. The second core passage has a second core cross-sectional perimeter. The first and second core cross-sectional perimeters are larger than their respective first and second inlet cross-sectional perimeters. The first and second core passages are undivided from their respective first and second inlets to their respective first and second outlets.

A heat exchanger in which a connecting part may be coupled to a header tank of the heat exchanger in the short term without using a separate coupling component before a brazing process is performed, and a coupling method of a connecting part thereof. The connecting part is coupled to a first header tank or a second header tank while surrounding a predetermined region of an outer peripheral surface of the first header tank or the second header tank, a region of the connecting part to which external force is locally applied being coupled to the first header tank or the second header tank while protruding together with the first header tank or the second header tank.

A method of making an end-piece for a plate heat exchanger, wherein the end-piece includes a frame part having inner and outer portions, and an intermediate portion arranged between the inner and outer portions, with the outer wall surface of the inner portion being arranged to face a first surface of a package of heat transfer plates comprising the plate heat exchanger, and the first surface having a center portion and a peripheral portion encircling the center portion. The method includes extruding the frame part with plural cavities in the intermediate portion of the frame part that extend in the extrusion direction of the frame part and that are parallel to the frame part axis, with outer dimensions of the outer wall surface of the inner portion configured to be at least as large as outer dimensions of the center portion of the first surface heat transfer plate package.

A fluid coil includes a tube bundle having a series of straight tubing runs and a series of return bends extending between and fluidically connecting ones of the straight tubing runs, an expansion header fluidically connected to at least some of the return bends and a polymeric material disposed in the expansion header. The polymeric material has an initial shape and is compressible to repeatedly expand and contract between a first volume in which water is present in the tube bundle and a second volume in which the water undergoes a phase change. Contraction of the polymeric material absorbs an increase in volume as the water undergoes the phase change to prevent stressing and rupture of the tube bundle and upon an opposite phase change, the polymeric material returns to its initial shape. The polymeric material can be a pressurizable bladder. A system and method to prevent the rupture of a tube bundle in a fluid coil are also disclosed.

A fluid coil includes a tube bundle having a series of straight tubing runs and a series of return bends extending between and fluidically connecting ones of the straight tubing runs, an expansion header fluidically connected to at least some of the return bends and a polymeric material disposed in the expansion header. The polymeric material has an initial shape and is compressible to repeatedly expand and contract between a first volume in which water is present in the tube bundle and a second volume in which the water undergoes a phase change. Contraction of the polymeric material absorbs an increase in volume as the water undergoes the phase change to prevent stressing and rupture of the tube bundle and upon an opposite phase change, the polymeric material returns to its initial shape. The polymeric material can be a pressurizable bladder. A system and method to prevent the rupture of a tube bundle in a fluid coil are also disclosed.