A shell-and-tube heat exchanger and an air conditioning system. The shell-and-tube heat exchanger includes: a shell provided with a liquid inlet and an vapor outlet, the vapor outlet being disposed at an top portion of the shell; and a heat exchange tube bundle disposed in the shell in an axial direction of the shell; wherein the heat exchange tube bundle includes: a plurality of first heat exchange tubes located at an upper portion, the first heat exchange tubes having a first spacing therebetween; and a plurality of second heat exchange tubes located at a lower portion, the second heat exchange tubes having a second spacing therebetween; the first spacing is different from the second spacing.

A shell-and-tube heat exchanger and an air conditioning system. The shell-and-tube heat exchanger includes: a shell provided with a liquid inlet and an vapor outlet, the vapor outlet being disposed at an top portion of the shell; and a heat exchange tube bundle disposed in the shell in an axial direction of the shell; wherein the heat exchange tube bundle includes: a plurality of first heat exchange tubes located at an upper portion, the first heat exchange tubes having a first spacing therebetween; and a plurality of second heat exchange tubes located at a lower portion, the second heat exchange tubes having a second spacing therebetween; the first spacing is different from the second spacing.

Apparatus, systems, and methods for a modular heating unit that may be adapted to be inline with a pipeline. The unit includes a base member having a main inlet pipe, a header, and pipes connecting the main inlet pipe with the header. A combustion chamber is positioned within the pipes. One or more heat exchangers are connected to the header. The heat exchangers each having a top surface, bottom surface, plurality of fins, inlet ring, inlet port, outlet ring, and outlet port. The modular heating unit includes external inlet and outlet pipes. A first flow path enables fluid to flow from the header into the one or more heat exchangers. An exit flow path connected to the external outlet pipe connects the one or more heat exchangers to an exit port with a portion of the exit flow path being positioned above the one or more heat exchangers.

Apparatus, systems, and methods for a modular heating unit that may be adapted to be inline with a pipeline. The unit includes a base member having a main inlet pipe, a header, and pipes connecting the main inlet pipe with the header. A combustion chamber is positioned within the pipes. One or more heat exchangers are connected to the header. The heat exchangers each having a top surface, bottom surface, plurality of fins, inlet ring, inlet port, outlet ring, and outlet port. The modular heating unit includes external inlet and outlet pipes. A first flow path enables fluid to flow from the header into the one or more heat exchangers. An exit flow path connected to the external outlet pipe connects the one or more heat exchangers to an exit port with a portion of the exit flow path being positioned above the one or more heat exchangers.

The present disclosure discloses a fluidized bed cooler with regional coordination enhancement, comprising a shell, a catalyst inlet, an interior of the shell is divided into a catalyst inlet influence region, a dilute phase region, a dense phase region and a gas distributor influence region; a catalyst inlet inclined tube is provided obliquely upward at the catalyst inlet, and a regional particle distributor is provided at the catalyst inlet; the dense phase region is provided with a plurality of dense phase baffle plates, and the dilute phase region is provided with a plurality of dilute phase baffle plates; and the gas distributor influence region is provided with double gas distributors. The fluidized bed cooler simultaneously well solves the low internal stability and the low heat exchange efficiency of the fluidized bed cooler, thereby realizing the stable and efficient operation of the fluidized bed cooler.

A baffle for a thermal transfer device can include a body having a multiple first apertures that traverse therethrough, where each first aperture has a first outer perimeter that includes a first base shape and at least one first protrusion extending from the first base shape. Each of the first apertures is configured to receive a tube. The first base shape of each first aperture has a first shape and a first size that is configured to be substantially the same as the first shape and the first size of an end of a tube.

An Integrated Hybrid Compact Fluid Heat Exchanger is disclosed. An example embodiment includes: a micro-channeled plate for a stream of a working fluid, the micro-channeled plate being diffusion bonded or brazed with a cover plate; and a fin assembly brazed, diffusion bonded, or welded to the micro-channeled plate. Other embodiments include a fan or blower coupled to the Integrated Hybrid Compact Fluid Heat Exchanger via air ducting or close coupling.

An Integrated Hybrid Compact Fluid Heat Exchanger is disclosed. An example embodiment includes: a micro-channeled plate for a stream of a working fluid, the micro-channeled plate being diffusion bonded or brazed with a cover plate; and a fin assembly brazed, diffusion bonded, or welded to the micro-channeled plate. Other embodiments include a fan or blower coupled to the Integrated Hybrid Compact Fluid Heat Exchanger via air ducting or close coupling.

A heat exchanger header includes a first stage with a first unit and a second stage with second units. The first unit includes a first branched region, a first common axis, and first fluid channels. Each of the first fluid channels includes a first end and a second end, wherein each of the first fluid channels defines a first spiral path with respect to the first common axis. Each of the second units includes a second branched region, a second common axis, and second fluid channels. Each of the second fluid channels includes a first end and a second end, wherein each of the second fluid channels defines a second spiral path with respect to the second common axis. Each of the second ends of the first fluid channels is connected to one of the second branched regions.

A heat exchanger header includes a first stage with a first unit and a second stage with second units. The first unit includes a first branched region, a first common axis, and first fluid channels. Each of the first fluid channels includes a first end and a second end, wherein each of the first fluid channels defines a first spiral path with respect to the first common axis. Each of the second units includes a second branched region, a second common axis, and second fluid channels. Each of the second fluid channels includes a first end and a second end, wherein each of the second fluid channels defines a second spiral path with respect to the second common axis. Each of the second ends of the first fluid channels is connected to one of the second branched regions.