An apparatus for supplying and dissipating heat, for carrying out reactions and for mixing and dispersing flowing media in a housing with an internal diameter for a medium and comprising internal fittings made up of a bundle of tubes with an external diameter or made up of other elongate elements oriented parallel to the longitudinal axis of the housing is provided. The apparatus includes crosspieces or crosspiece layers installed crosswise between the elongate elements. The crosspieces are inclined in relation to the longitudinal axis of the housing and are not in contact. After axially successive crosspieces, or a length, the crosspieces are installed between the tubes and turned by preferably 90°. A heat-transfer medium can flow in a co-current or counter-current mode. This results in a mixer/heat exchanger or reactor with an extremely large heat-transfer capacity and almost plug flow.

A heat exchanger comprises a jacket element and an insert element. The jacket element is configured as a fluid channel for a fluid to be tempered. The insert element is arranged in the fluid channel. The insert element includes web elements which are connected to the jacket element at different locations. Some of the web elements contain web element channels which are fluidly connected with the jacket element, so that in the operating state, a heat transfer fluid which is supplied to the jacket element can flow through the web elements. The jacket element contains chambers for a heat transfer fluid. The chambers contain one inlet opening and one outlet opening for the heat transfer fluid. The inlet opening and the outlet opening of the chamber are connected to the web element channels of two web elements each, which belong to the same row of web elements.

A shell-and-tube heat exchanger with externally-connected tube chambers includes a tube sheet, a shell, heat exchanging tubes, an inlet externally-connected tube chamber, and an outlet externally-connected tube chamber, wherein: the inlet and outlet externally-connected tube chambers are respectively fixed to corresponding positions of the tube sheet, two flow guiding devices are respectively located in the inlet and outlet externally-connected tube chambers, the two flow guiding devices respectively have two cavities therein, multiple flow guide channels outwardly extend from the cavities to the tube sheet and communicated with the tube sheet; one cavity of the outlet externally-connected tube chamber is communicated with a tube side outlet pipe, and one cavity of the inlet externally-connected tube chamber is communicated with a tube side inlet pipe. The shell-and-tube heat exchanger is reasonable in design, can effectively improve the sealing performance and reduce the tube side pressure drop, and has broad application prospects.

Embodiments of the disclosure pertain to an improved heat exchanger unit that includes a frame having a top region, a bottom region, and a plurality of side regions. The unit has a first cooler coupled with the frame proximate to a respective side region and generally parallel to a vertical axis. The unit has a second cooler coupled with the frame proximate to the top region and generally perpendicular to the vertical axis. The unit includes an inner airflow region within the heat exchanger unit, and a first baffle disposed within the inner airflow region.

Heat exchange devices (30) and methods of using same are provided. In a general embodiment, the present disclosure provides for heat exchange devices (30) that are cooling devices having a double helical coil (32) in a phase-mixing-cooling section, a helical coil (36) in a phase-separation-cooling section, and a back-pressure valve (34) intermediate the two coils (32,36). The cooling devices provide maximum extraction of the heat content from a heated food product using a direct-injected liquid cryogen, and complete separation of the gaseous cryogen phase from the cooled product, while avoiding the formation of a stable foam. Hybrid direct-indirect cooling devices are also provided, as well as methods for using same.

A tube-bundle heat exchanger includes built-in elements formed by deflection surfaces, windows and directing sections. The product flows in the outer chamber of a tube-bundle heat exchanger with an inlet and an outlet for the product and an inlet and an outlet for the heat carrier medium in the tubes. The deflection panels including the tube-bundle heat exchanger are modified such that they leave windows open and a directing section is attached on the inlet side and the outlet side of the deflection surface. These directing sections run parallel to the tube axes and cross one another. The flow is divided by the direction sections on the inlet side and directed to the windows in opposing directions, where it then exits on respective opposing sides of the outlet sections and is deflected.

A reaction/mixing/heat exchange tube, including an outer tube, an inner tube disposed in the outer tube; and a fluid channel formed between the outer tube and the inner tube. The outer tube includes a wall including a plurality of first flat segments, and a plurality of first communication holes formed between every two adjacent first flat segments.

The heat exchanger (1) contains a jacket element (2) and an insert element (3), wherein the insert element (3) is arranged in the operating state in the interior of the jacket element (2). The insert element has a longitudinal axis (4). The insert element (3) contains an insert jacket element (31) and a plurality of web elements (9, 10), the web elements (9, 10) having a first end (13) and a second end (14). The first end (13) and the second end (14) of each web element (9, 10) are connected to the insert jacket element (31) at different locations. At least a portion of the web elements (9, 10) includes web element channels (11, 12), the web element channels (11, 12) extending from the first end (13) of the web element (11) to the second end (14) of the web element (11). An intermediate jacket element (5) is arranged between the insert jacket element (31) and the jacket element (2).

A heat exchanger comprises a jacket element and an insert element, the jacket element forming a fluid channel for a fluid to be tempered, a flowable medium or a fluid mixture. The insert element is arranged in the fluid channel. The insert element contains a plurality of web elements which are connected to the jacket element at different locations. At least some of the web elements contain web element passages which are in fluid-conducting connection with the jacket element so that, in the operating state, a heat transfer fluid which is fed to the jacket element can flow through the web elements, wherein the jacket element contains a plurality of chambers for a heat transfer fluid, wherein at least one of the chambers is disposed with a plurality of inlet openings and outlet openings for the heat transfer fluid.

Provided is a fluid flow-passage device in which the flow passage length of each of a plurality of fluid flow-passages can be increased even if the plurality of fluid flow-passages are formed so as to extend in parallel to each other, and in which the inside of each of the plurality of fluid flow-passages can be easily cleaned. In the fluid flow-passage device, a plurality of fluid flow-passages which extend in parallel to each other and through which a fluid is made to flow are disposed. The fluid flow-passage device comprises: a body having a plurality of substrates that are laminated in a prescribed lamination direction; and a plurality of lids, each of which can be attached to and detached from the body. Each of the plurality of fluid flow-passages includes: a first fluid flow-passage that is disposed between two substrates among the plurality of substrates, the two substrates being in contact with each other in the lamination direction; and a second fluid flow-passage that is disposed between two substrates among the plurality of substrates, the two substrates being in contact with each other in the lamination direction and being disposed at a different position in the lamination direction from the first fluid flow-passage, and that is positioned more toward the downstream side than the first fluid flow-passage in the direction in which the fluid flows.