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 having a heat exchanger core which is configured as a plate stack has a flange plate including at least one upper partial plate facing the heat exchanger core and at least one lower partial plate facing away from the heat exchanger core. The flange plate can include a supercooling passage which is bounded by at least one partial plate in the stacking direction of the partial plates and which receives a flow of refrigerant during the operation of the heat exchanger. A high variability can be provided thanks to the compact and flexible design, by means of which the most diverse of requirements can be achieved with no major design changes.

A heating and cooling unit includes a panel, a heating assembly configured to heat the panel as part of a heating operation, and a cooling assembly configured to cool the panel as part of a cooling operation. The heating assembly includes a first plate disposed along a first side of the panel, the first plate having a body that defines a slot. The heating assembly further includes a heating element disposed within the slot. The cooling assembly includes a second plate coupled to the first plate and a cooling element coupled to the second plate. The panel, the heating assembly, and the cooling assembly are arranged in a stacked configuration with the heating assembly between the panel and the cooling assembly.

A heating and cooling unit includes a panel, a heating assembly configured to heat the panel as part of a heating operation, and a cooling assembly configured to cool the panel as part of a cooling operation. The heating assembly includes a first plate disposed along a first side of the panel, the first plate having a body that defines a slot. The heating assembly further includes a heating element disposed within the slot. The cooling assembly includes a second plate coupled to the first plate and a cooling element coupled to the second plate. The panel, the heating assembly, and the cooling assembly are arranged in a stacked configuration with the heating assembly between the panel and the cooling assembly.

A plate fin fluid processing device includes active layers, where each active layer includes a fin plate sandwiched between parting sheets so that an active fluid space is defined between the parting sheets. The active layers include an outermost active layer having an inlet and an outlet. A contingent layer body is positioned adjacent to the outermost active layer and includes a fin plate positioned between a parting sheet and a cap sheet. The contingent layer body has a fluid space that is sealed with respect to the atmosphere. A pressure monitoring system is in communication with the fluid space of the contingent layer body. An emergency pressure relief device is configured to release a pressure within the fluid space if a preset pressure is exceeded.

A brazed plate heat exchanger (10) comprising a stack of heat exchanger plates (12a, 12b) provided with a pattern comprising ridges (R) and grooves (G) to form plate interspaces (13a, 13b) for fluids to exchange heat. The heat exchanger plates are provided with port openings (O1-O4) forming inlet and outlet channels (14) for the first and second fluids, wherein at least one of the first and second heat exchanger plates is arranged with a skirt to form a chamber (17) between the port opening and the plate interspaces. The chamber (17) is open to the channel (14) through a gap between at least a free end portion of the skirt and the adjacent heat exchanger plate, and the gap varies around the circumference of the channel (14) and/or a cross section area of the chamber (17) varies around the circumference of the channel (14).

A method of forming a component for a heat exchanger is disclosed. The method comprises machining a portion of a metal sheet to form a plurality of protrusions, and forming apertures in the portion of the metal sheet so as to form a plurality of ribs defined by adjacent ones of the apertures, wherein at least one protrusion is located on each of said ribs.

A heat exchanger includes a first fluid laminate defining a first fluid cavity that is in fluid communication with and downstream from a first inlet such that at least some of the first fluid flows into the first fluid cavity. The heat exchanger includes a second fluid laminate positioned adjacent to and in contact with the first fluid laminate. The first fluid laminate and the second fluid laminate define a portion of a cylinder. The second fluid laminate defines a second fluid cavity that is in fluid communication with and downstream from a second inlet such that at least some of the second fluid flows into the second fluid cavity, such that heat may transfer between the first fluid and the second fluid via the first fluid laminate and the second fluid laminate.

A heat exchanger has at least one inlet and outlet to permit circulation of refrigerant therethrough. Each heat exchanger includes a plurality of thin sections of material arranged between a pair of thin flat outer plates. Each of the thin sections of material is comprised of parallel flow paths, allowing for the refrigerant to flow through the inlet, then from one section to the next, and finally out the outlet. The arrangement of the sections of parallel flow paths allows for the refrigerant to come into contact with the majority of the inside wall of the outer plates, allowing for maximum heat exchange. In use for cooling liquids, the heat exchangers are arranged within a frame and brought into contact with the liquid to be cooled. When the heat exchangers are used to cool liquid sufficiently to produce ice crystals, a rotating scraping device sweeps across the surface of the heat exchanger, removing any ice crystals that have formed.

A heat exchanger including a sealed housing and a body positioned inside the housing, the body including a stack of least one first assembly of first and second plates pressed against each other, between which flows a first fluid, and at least one second assembly of third and fourth plates pressed against each other, between which flows a second fluid, the first and second assemblies being arranged so that they transfer heat between the first and second fluids. This configuration limits the risk of leaks and mixing of the two fluids.