Abstract: The invention relates to a heat exchanger system comprising a jacket extending along a longitudinal axis and surrounding a jacket space. A pipe bundle is arranged in the jacket space wherein pipes are wound helically around a central pipe. At least one pre-distributor container is arranged in the jacket space for accommodating and degassing a liquid-gas mixture and designed to coat a distributing means with liquid degassed in the at least one pre-distributor container. The distributing means is designed to deliver the liquid to the pipe bundle. At the top the jacket has an inlet which is aligned with the longitudinal axis and in fluid connection with the central pipe. The central pipe has at least one lateral opening so that the liquid-gas mixture can be fed via the inlet, the central pipe, and the at least one lateral opening into the at least one pre-distributor container.

Abstract: A helically coiled heat exchanger with a plurality of inlets each connected to at least one assigned tube defining a heating surface of the heat exchanger and having at least one changeover means to switch the inlet between a first operating state and a second operating state. In the first operating state, a stream of a first medium and, in the second operating state, a stream of a second medium is introduced via the inlet into the assigned tube. In the first operating state more heating surface is available to the stream of the first medium and correspondingly less heating surface is available to the stream of the second medium. In the second operating state more heating surface is available to the stream of the second medium and correspondingly less heating surface is available to the stream of the first medium.

Abstract: A process for cooling a tube side stream in a main heat exchanger is described. The process comprises: a) supplying a first mass flow of a tube side stream to a first zone of individual tubes in the tube bundle; b) supplying a second mass flow of the tube side stream to a second zone of individual tubes in the tube bundle, the second zone being offset from the first zone; c) supplying a refrigerant stream on the shell side for cooling the first and second mass flows; d) removing the evaporated refrigerant stream from the warm end of the main heat exchanger; and, e) adjusting the first mass flow of the tube side stream relative to the second mass flow of the tube side stream to maximise the temperature of the removed evaporated refrigerant stream.

Abstract: The invention relates to a heat exchanger system (1) for heat exchange between at least a first medium (M), in particular in the form of a hydrocarbon-rich phase, and a second medium (K), with at least first and second pipe space sections (101, 103; 103, 105) for accommodating the first medium (M), and with a first pipe space section connecting means (102; 104), via which the two pipe space sections (101, 103; 103, 105) are connected to one another in a flow-guiding manner. The first pipe space section (101; 103) is surrounded by a first shell space (201, 203), and the second pipe space section (103; 105) is surrounded by a second shell space (203, 205) for accommodating the second medium (K). The first shell space (201; 203) is defined by a first shell (301; 303) and the second shell space (203; 205) is defined by a second shell (303; 305).

Abstract: A process for cooling a tube side stream in a main heat exchanger is described. The process comprises: a) supplying a first mass flow of a tube side stream to a first zone of individual tubes in the tube bundle; b) supplying a second mass flow of the tube side stream to a second zone of individual tubes in the tube bundle, the second zone being offset from the first zone; c) supplying a refrigerant stream on the shell side for cooling the first and second mass flows; d) removing the evaporated refrigerant stream from the warm end of the main heat exchanger; and, e) adjusting the first mass flow of the tube side stream relative to the second mass flow of the tube side stream to maximise the temperature of the removed evaporated refrigerant stream.

Abstract: A heat exchanger for indirect heat exchange between a first fluid and a second fluid, with a shell surrounding a shell space for receiving the first fluid, a tube bundle having a plurality of tubes arranged in the shell space for receiving the second fluid, the tubes arranged in a number of tube layers, and a jacket arranged in the shell space and enclosing an outermost tube layer in the radial direction of the tube bundle. An intermediate space is formed between the tube bundle and the jacket surrounds the tube bundle. At least one elastic element is arranged with a first region between neighboring tube portions in the outermost tube layer and a second region that protrudes out of the outermost tube layer and abuts an inner side of the jacket (3) that is facing the tube bundle or connects the elastic element to the jacket.

Abstract: The invention relates to a shell and tube heat exchanger (1) having a helical tube bundle (10) within a shell (20), that defines a shell space (200) surrounding the tube bundle (10). The tubes are helically coiled about a core pipe (100) in such a manner that there is formed at least one first section (11) and at least one second section (12), separate from the first section, that surrounds the first section (11). The two sections (11, 12) have in each case at least one associated inlet (E, E?) such that the two sections (11, 12) are able to be charged separately with the first medium.

Abstract: The invention relates to a heat exchanger (1) for indirect heat exchange comprising a tube bundle (10), formed from a plurality of tubes helically coiled around a core tube (100), for receiving a first medium, a shell (20). which encloses the tube bundle (10) and defines a shell space (200) surrounding the tube bundle (10), for receiving a second medium, and a liquid distributor (40) for distributing in the shell space (200) a stream (S), conveyed in the shell space (200), of the second medium in the form of a liquid (F). According to the invention a control device (33) for controlling distribution in the shell space (200) of an additional, further stream (S?) of liquid (F), and/or for controlling distribution of stream (S) of liquid (F) in the shell space (200).

Abstract: A process for liquefying a tube side stream in a main heat exchanger is described. The process comprises the steps of: a) providing a first mass flow to the warm end of a first subset of individual tubes, b) providing a second mass flow to the warm end of a second subset of individual tubes, c) evaporating a refrigerant stream on the shell side; d) measuring an exit temperature of the first mass flow; e) measuring an exit temperature of the second mass flow; and, f) comparing the exit temperature of the first mass flow measured in step d) to the exit temperature of the second mass flow measured in step e), the process characterized in that at least one of the first and second mass flows is adjusted to equalize the exit temperature of the first mass flow with the exit temperature of the second mass flow.

Abstract: A heat exchanger for indirect heat exchange between a first fluid and a second fluid, with a shell surrounding a shell space for receiving the first fluid, a tube bundle having a plurality of tubes arranged in the shell space for receiving the second fluid, the tubes arranged in a number of tube layers, and a jacket arranged in the shell space and enclosing an outermost tube layer in the radial direction of the tube bundle. An intermediate space is formed between the tube bundle and the jacket surrounds the tube bundle. At least one elastic element is arranged with a first region between neighboring tube portions in the outermost tube layer and a second region that protrudes out of the outermost tube layer and abuts an inner side of the jacket that is facing the tube bundle or connects the elastic element to the jacket.

Abstract: A helically coiled heat exchanger with a plurality of inlets each connected to at least one assigned tube defining a heating surface of the heat exchanger and having at least one changeover means to switch the inlet between a first operating state and a second operating state. In the first operating state, a stream of a first medium and, in the second operating state, a stream of a second medium is introduced via the inlet into the assigned tube. In the first operating state more heating surface is available to the stream of the first medium and correspondingly less heating surface is available to the stream of the second medium. In the second operating state more heating surface is available to the stream of the second medium and correspondingly less heating surface is available to the stream of the first medium.

Abstract: The invention relates to a heat exchanger system comprising a jacket extending along a longitudinal axis and surrounding a jacket space. A pipe bundle is arranged in the jacket space wherein pipes are wound helically around a central pipe. At least one pre-distributor container is arranged in the jacket space for accommodating and degassing a liquid-gas mixture and designed to coat a distributing means with liquid degassed in the at least one pre-distributor container. The distributing means is designed to deliver the liquid to the pipe bundle. At the top the jacket has an inlet which is aligned with the longitudinal axis and in fluid connection with the central pipe. The central pipe has at least one lateral opening so that the liquid-gas mixture can be fed via the inlet, the central pipe, and the at least one lateral opening into the at least one pre-distributor container.

Abstract: A process for liquefying a tube side stream in a main heat exchanger is described. The process comprises the steps of: a) providing a first mass flow to the warm end of a first subset of individual tubes, b) providing a second mass flow to the warm end of a second subset of individual tubes, c) evaporating a refrigerant stream on the shell side; d) measuring an exit temperature of the first mass flow; e) measuring an exit temperature of the second mass flow; and, f) comparing the exit temperature of the first mass flow measured in step d) to the exit temperature of the second mass flow measured in step e), the process characterized in that at least one of the first and second mass flows is adjusted to equalise the exit temperature of the first mass flow with the exit temperature of the second mass flow.

Abstract: A process for cooling a tube side stream in a main heat exchanger is described. The process comprises: a) supplying a first mass flow of a tube side stream to a first zone of individual tubes in the tube bundle; b) supplying a second mass flow of the tube side stream to a second zone of individual tubes in the tube bundle, the second zone being offset from the first zone; c) supplying a refrigerant stream on the shell side for cooling the first and second mass flows; d) removing the evaporated refrigerant stream from the warm end of the main heat exchanger; and, e) adjusting the first mass flow of the tube side stream relative to the second mass flow of the tube side stream to maximise the temperature of the removed evaporated refrigerant stream.

Abstract: The invention relates to a heat exchanger (1) for indirect heat exchange comprising a tube bundle (10), formed from a plurality of tubes helically coiled around a core tube (100), for receiving a first medium, a shell (20). which encloses the tube bundle (10) and defines a shell space (200) surrounding the tube bundle (10), for receiving a second medium, and a liquid distributor (40) for distributing in the shell space (200) a stream (S), conveyed in the shell space (200), of the second medium in the form of a liquid (F). According to the invention a control means (33) for controlling distribution in the shell space (200) of an additional, further stream (S?) of liquid (F), and/or for controlling distribution of stream (S) of liquid (F) in the shell space (200).

Abstract: The invention relates to a shell and tube heat exchanger (1) having a helical tube bundle (10) within a shell (20), that defines a shell space (200) surrounding the tube bundle (10). The tubes are helically coiled about a core pipe (100) in such a manner that there is formed at least one first section (11) and at least one second section (12), separate from the first section, that surrounds the first section (11). The two sections (11, 12) have in each case at least one associated inlet (E, E?) such that the two sections (11, 12) are able to be charged separately with the first medium.

Abstract: The invention relates to a heat exchanger system (1) for heat exchange between at least a first medium (M), in particular in the form of a hydrocarbon-rich phase, and a second medium (K), with at least first and second pipe space sections (101, 103; 103, 105) for accommodating the first medium (M), and with a first pipe space section connecting means (102; 104), via which the two pipe space sections (101, 103; 103, 105) are connected to one another in a flow-guiding manner. The first pipe space section (101; 103) is surrounded by a first shell space (201, 203), and the second pipe space section (103; 105) is surrounded by a second shell space (203, 205) for accommodating the second medium (K). The first shell space (201; 203) is defined by a first shell (301; 303) and the second shell space (203; 205) is defined by a second shell (303; 305).

Abstract: The invention relates to a mass transfer or heat-exchange column, a tube bundle heat exchanger, with a first mass transfer or heat-exchange area, a first tube bundle (2), and a second mass transfer or heat-exchange area, in particular a second tube bundle (8), that is arranged spatially above the first mass transfer or heat-exchange area, which are surrounded by a cover (10?). In a tube bundle heat exchanger according to the invention, a lower end section (40) of the second, smaller tube bundle (8) projects into a cover part (13?) of the first, larger tube bundle (2), by which an intermediate space (41) is formed between the lower section (40) of the second tube bundle (8) and the cover part (13?). In the area of this intermediate space (41), an inlet (26) for injecting a medium into the column and optionally a manhole (36) are arranged on the cover part (13?).

Abstract: The invention relates to a mass transfer or heat-exchange column, a tube bundle heat exchanger, with a first mass transfer or heat-exchange area, a first tube bundle (2), and a second mass transfer or heat-exchange area, in particular a second tube bundle (8), that is arranged spatially above the first mass transfer or heat-exchange area, which are surrounded by a cover (10?). In a tube bundle heat exchanger according to the invention, a lower end section (40) of the second, smaller tube bundle (8) projects into a cover part (13?) of the first, larger tube bundle (2), by which an intermediate space (41) is formed between the lower section (40) of the second tube bundle (8) and the cover part (13?). In the area of this intermediate space (41), an inlet (26) for injecting a medium into the column and optionally a manhole (36) are arranged on the cover part (13?).

Abstract: A coiled heat exchanger having a plurality of tubes which are wound around a core tube is disclosed. The heat exchanger having a casing which delimits an outer space around the tubes, where the tubes of a first tube group have a first inner diameter and a first outer diameter and the tubes of a second tube group have a second inner diameter and a second outer diameter. The second inner diameter is different from the first inner diameter and/or the second outer diameter is different from the first outer diameter.