Abstract:
The present disclosure relates to a heat exchanger (1-1) comprising: a channel layer (3) comprising a circumferentially closed channel (5), wherein the channel layer (3) is monolithic and has been made by means of digital light processing, DLP,3D-printing, and wherein the channel layer (3) is made from a resin.
Abstract:
L'invention concerne un chauffe-eau (500) thermodynamique, notamment d'une capacité de 400 litres, comprenant un circuit caloporteur formant pompe à chaleur, comportant : a. un circuit basse pression comprenant un évaporateur (508); b. un circuit haute pression comprenant un condenseur (100) en contact avec la cuve (502) dudit chauffe-eau, caractérisé en ce que ledit condenseur comprend : bi. deux plaques superposées et plaquées l'une contre l'autre, l'une des plaques comprenant un bossage continu formant, en coopération avec l'autre plaque, un conduit réalisant un circuit de condensation selon des canaux parallèles; bii. une entrée (110) du fluide frigorigène, en phase gazeuse, selon un canal unique suivie d'une zone (111) de distribution comprenant une pluralité de bifurcations de division, répartissant chacune le fluide véhiculé d'un canal de section courante dans deux canaux de même section courante; biii. une sortie (120) selon un canal unique du fluide frigorigène en phase liquide, laquelle sortie est précédée d'au moins une zone de regroupement comprenant une pluralité de bifurcations de concentration, ladite zone de regroupement regroupant N canaux de même section courante en (I) canaux de même section courante.
Abstract:
A heat exchanger (52) which may be used in an engine, such as a vehicle engine for an aircraft or orbital launch vehicle is provided. The heat exchanger (52) may be configured as generally drum-shaped with a multitude of spiral sections (108), each containing numerous small diameter tubes (120). The spiral sections may spiral inside one another. The heat exchanger may include a support structure with a plurality of mutually axially spaced hoop supports, and may incorporate an intermediate header (440). The heat exchanger may incorporate recycling of methanol or other antifreeze used to prevent blocking of the heat exchanger due to frost or ice formation.
Abstract:
A pool-water heater manifold in fluid communication with other components of a pool-water circulation system, the manifold comprising an inlet for receiving pool water from another component of the pool-water circulation system; an outlet for transferring pool water to another component of the pool-water circulation system; a low-restriction chamber configured to allow water to flow from the inlet to the outlet; a plurality of openings for directing water to a heating device; a barrier positioned at least partially within the chamber; and means for repositioning the barrier from a first position, in which the barrier obstructs passage through the chamber of substantially all of the water received by the inlet, to a second position, in which the barrier allows passage through the chamber of substantially all of the water received by the inlet.. The pool- water heater manifold includes a low-restriction chamber having low impedance to water flow therethrough and repositionable gates or other valves within the chambers. The valves may direct water as a function of whether an associated heating device is active. At least some gates may incorporate poppet valves or other high-flow bypasses. Disclosed is furthrmore, a method of operating a pool-water heating system by causing pool water to enter a manifold of a heating device; and positioning a barrier within the manifold so as to allow pool water to flow from an inlet of the manifold to an outlet of the manifold without significant restriction if the heating device is inactive or from the inlet of the manifold to the heating device when the heating device is active.
Abstract:
The present invention relates to a heat exchanger pipe system for transporting viscous fluids, comprising a plurality of individual heat exchangers designed as pipe elements and having a predefined control temperature and/or pressure distribution along the pipe system and in the cross-section of the pipes. The invention in characterized in that heat exchangers which are in the form of pipe elements are arranged at regular distances in the pipe system. The regular distances are selected in such a manner that a predetermined temperature and/or pressure distribution is maintained along the pipe system, tempering means of a viscous fluid transported in the heat exchanger pipe are arranged in the heat exchangers and optional mixing elements which are used to maintain, in accordance with the pipe cross-section, a predetermined temperature and pressure distribution in the cross section of the pipes, and at least 30% of the length of the heat exchanger pipe system is equipped with heat exchangers. The invention also relates to a method for transporting viscous fluids by means of heat exchanger pipes.
Abstract:
A pyrometallurgical vessel for the production of metal by the electrolytic reduction of a metal bearing material dissolved in a molten salt bath, the cell including a shell 1 1 and a lining 12,1 3 on the interior of the shell, the lining including a bottom cathode lining 13 and a side wall lining 12, at least one of the bottom cathode lining 13 and a side wall lining 12 including a plurality of fluid ducts 16, 22, 31, 41 positioned within the lining for conducting a fluid therethrough, the flow of fluid through the ducts within the linings having 3-dimensional directional flow provided by 3-dimensional shapes inserted into the ducts or the ducts comprising a number of straight sections joined by curved sections arranged in a 3-dimensional shape, the 3-dimensional shapes of the ducts or the 3-dimensional shapes inserted into the ducts. The 3-D shapes in the ducts or the 3-D shape of the ducts are in such a way that secondary flows in the fluid are formed, broken and reformed imparting greater advection in the flow.
Abstract:
Methods, systems, and apparatus for cooling particulates are provided. The apparatus can include one or more coils at least partially disposed within a cylindrical housing. The one or more coils can include a plurality of tubulars connected by return bends disposed at one or more ends thereof. The apparatus can further include a support grid at least partially disposed within the housing and secured to one or more inner surfaces of one or more sidewalls thereof. The support grid can include a plurality of cross members formed of a series of concentric cylinders connected together by a plurality of radially disposed gussets. An outermost concentric cylinder can be disposed proximate the one or more inner surfaces of the one or more sidewalls, and at least one of the one or more coils can be secured to at least one of the cross members, at least one of the gussets, or both. The support grid can also include one or more beams having a first end and a second end fastened to different points on the one or more inner surfaces of the one or more sidewalls. The cross members can be disposed on at least one of the one or more beams.
Abstract:
A waste heat boiler for coal gasification of fluidized bed includes a high-temperature evaporator (200), an over-heater (300), a low-temperature evaporator (400) and a coal economizer (500) in series. The over-heater (300), the low-temperature evaporator (400) and the coal economizer (500) have water tube structures, and the high-temperature evaporator (200) has a flame tube structure.
Abstract:
There is provided a catalyst reaction apparatus comprising: a reactant inlet; a catalyst bed; a heat exchanger section; and a product outlet; wherein the heat exchanger section comprises a heat exchange pipe, through which heat exchange media can flow, extending between a pipe- inlet and a pipe-outlet as a jointless unit, at least a part of the heat exchange pipe being a coil. The invention seeks to provide a catalyst reaction apparatus, particularly a formaldehyde production apparatus, that is less susceptible to failures as a result of thermal stress; that is more easily repaired; and that may be more easily constructed.
Abstract:
The present invention relates to a method for braze-welding a fixing plate and a flow channel cap in a heat exchanger, and to a heat exchanger produced by same. The method comprises the steps of: providing a fixing plate (10) having a plurality of resilient protrusions (11) for snap-fitting; providing a flow channel cap (20), one end (22) of which is L-shaped to be snap-fitted onto the resilient protrusion (11) and the other end of which has a stepped portion (21); inserting the stepped portion (21) of the flow channel cap (20) into the resilient protrusion (11) such that an end (21b) of the stepped portion (21) contacts an end of the resilient protrusion (11); pressing the L-shaped end (22) of the flow channel cap (20) against the resilient protrusion (11) of the fixing plate (10) such that the L-shaped end (22) is snap-fitted onto the resilient protrusion (11) and thus tightly contacts the fixing plate (10), and the resilient protrusion (11) thus press-contacts the end (21b) of the stepped portion (21) to enable an end (21a) of the stepped portion (21) to tightly contact the fixing plate (10); and braze-welding the fixing plate (10) and the flow channel cap (20). The above-described method eliminates a spot-welding process which might otherwise be performed prior to the process of braze-welding the fixing plate and the flow channel cap in conventional heat exchangers, to thereby reduce manufacturing costs and labor and to improve productivity.