Abstract: A perforated plastic baffle for a shell-and-tube heat exchanger includes pressure actuated tube seals. Heat exchanger tubes run lengthwise through a cylindrical shell, and baffles traverse the tubes. The pressure actuated seals line each baffle perforation through which the tubes extend. Each seal includes a flexible annular lip that surrounds the tube and extends upstream from the baffle. Fluid flowing through the shell and being redirected by the baffles provides a pressure differential that forces the seals' lips tightly against and around the tubes. In the absence of the fluid pressure differential, the sealing force is greatly reduced which enables the tubes to be easily inserted through the baffle perforations during assembly of the heat exchanger.

Abstract: A heat exchanger particularly for solar water heating applications including a plurality of fluid conducting ducts separated by a plurality of webs which are spaced apart longitudinally to leave substantial regions of the ducts free of webs. The ducts are connected to supply and return manifolds via connectors, the connectors having recesses into which the ends of the ducts are inserted and retained when the connectors are inserted in apertures in the manifolds.

Abstract: A device for fixing loops in a component (1) of a heat exchanger constituted by tubes (10) in which a fluid flows, the loops being situated in the plane of the heat exchanger and being formed by bends and by mutually parallel vertical lengths (11), at least one tube forms an additional loop (12, 14) leaving the plane of the heat exchanger component and surrounding the vertical lengths (11), the device being characterized in that a notched flat (2) is installed level with the additional loop, said flat being provided with semicircular openings each of which receives a vertical length.

Abstract: At least one ring (2) of material having a hardness greater than that of the tube (3) and that of the hollow cylindrical component (1) is arranged around the latter in contact with its outer surface. The cylindrical component is introduced inside the tube (3) and then expanded and crimped at least in its part containing the ring of hard material (2), thereby embedding the ring in the cylindrical component (1) and in the tube (3) at the same time.

Abstract: A heat transfer unit includes an elongated finned tubular element bent in a serpentine pattern with the thickness of the wall of the tubular member made greater at return bend portions than at cross portions either by more shallow cutting of the rib material from which the fins are formed at the return bend portions than at the cross portions, or by crimping the tubular member at the return bend portions prior to cutting the fins so that a portion of the rib material from which the fins are cut is compressed inwardly on both sides of the tubular member to increase the wall thickness of tube material at the return bend portions.

Abstract: A heat exchanger having replaceable heat exchange surfaces comprises a plurality of tubes formed into a bundle wherein the tubes are arranged linearly side by side. The heat exchanger is provided with a header and reverse header at either end of the tube bundle for directing the flow of fluid therethrough. A heat exchange structure is positionable about the tube bundle in thermal contact therewith. The heat exchange structure has a surface matrix from which extend a plurality of fins for receiving heat conducted from the tube bundle. The heat exchange structure may be conveniently formed into a U-shaped sleeve which may be slid over the tubes of the tube bundle and affixed in place by means of a thermal conductive cement. The tubes may be shaped to provide a streamlined flow of a cooling fluid about the fins thereby increasing the efficiency of heat transfer to the cooling fluid.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing into a flat coil having two spaced rows of tubing. The flat coil is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree. and the ends of the first row of the coil contacts a portion of the platen causing the formation of a knob at the end of each coil.

Abstract: A counter flow heat exchanger comprising a plurality of tubes disposed in a bundle array or tube within tube configuration to enhance heat transfer between high and low pressure tubes in the array or tube in tube configuration. Also disclosed are a method of increasing the heat transfer capacity of a tube bundle heat exchanger and a liquid helium temperature refrigerator or a reliquefier utilizing the heat exchanger.

Abstract: The present invention relates to a coil assembly for use in an evaporative parallel flow or counterflow heat exchanger wherein the heat exchanger comprises a conduit oriented in a vertical direction through which external heat exchange fluids flow in a generally vertical direction, the coil assembly being mountable within the conduit, the coil assembly comprising inlet and outlet manifolds and a plurality of tubes connecting the manifolds, the tubes including bights and segments extending generally horizontally across the conduit and connected to at least one bight, the bights being oriented vertically and connecting segments of the tube at different levels within the conduit, the bights of adjacent tubes being in contact with each other, the segments having a generally elliptical cross sectional shape such that the segments of adjacent tubes are spaced from each other in a direction generally normal to the flow direction.

Abstract: A double tube modular coil steam generator is provided in which a multiplicity of inner tubes conducting water are individually surrounded by outer tubes containing liquid metal as a heat transfer agent. The double tubes form into coils, providing a large surface area while conserving space. Immersion of the double tube coil in hot liquid metal, e.g., from the core of a nuclear reactor, causes efficient transfer of heat across the liquid metal in the outer tube to the water in the inner tube, creating superheated steam, which can be cycled to a turbine and converted to electrical power.The efficiency, reliability and safety of the multiple double tube design of the steam generator obviates the necessity of many secondary heat removal and emergency components in addition to conserving space and material. The modular design allows ease of operation, fabrication and repair.

Abstract: A heat exchanger is described that is constructed of several flat tubes arranged in parallel and at a distance to one another which, at their two front sides, are each closed off tightly. The end areas of the tubes are provided with connecting openings extending transversely to their longitudinal axis and leading to the adjacent flat tube or to the adjacent group of tubes. An advantage of the invention is its ease of manufacture.

Abstract: A heat exchanger for use for example in a laundry dryer comprises a plurality of plates defining flow passages therebetween for a first heat exchange medium. Each plate is made up of a plurality of aluminum elements having mutually co-operating positive and negative profilings at their narrow sides, to fit snugly together. The plates are held at a spacing from each other in grooves in end wall members forming a holding assembly. A second heat exchange medium flows through the hollow interiors of the elements making up the plates. The hollow interiors have web portions therein, to enhance heat flow between the first and second heat exchange media.

Abstract: Apparatus for treating fluids flowing at high velocity, for mass and heat transfer, for gas-liquid contacting and for contaminant particulate, mist or fume separation, including a plurality of perforated or unperforated cylinders arrayed staggered in rows perpendicular to the direction of flow of the fluid. The elements are spatially separated from each other. Diagonal by-pass flow through the array is blocked by a partition extending from each element generally parallel to the direction of flow of fluid bisecting the space between a pair of elements of an adjacent row with the elements of the pair symmetrically spaced with respect to the partition.Also, a method of removing contaminants from gas by passing the gas through this array between and injecting a liquid into the array. Capture of the contaminants by the drops is effected because of the difference in acceleration of each as the contaminated gas passes in and out of the gap between each cylinder and its adjacent partitions.

Abstract: A heat exchanger element includes a single and integrally extruded member having at least two hollow tubes having parallel longitudinal axes, each two adjacent hollow tubes being connected by at least two webs which extend parallel to the longitudinal axes and which are formed integrally with each of the two adjacent hollow tubes. The webs have therethrough plural perforations, and the material of each web between adjacent perforations therein is deflected to form a rib extending at an angle to the web. At least one tube has formed integrally therewith a projecting track which extends parallel to the longitudinal axes. Plural heat exchanger elements are connected at the respective tracks thereof to form a tube bundle.

Abstract: In finned tube arrangements for cooling a medium which flows in the finned tubes by a second medium which flows outside of the finned tubes and transversely thereof, flow guide elements are positioned at the inflow side and/or at the outflow side of the finned tube arrangement to reduce the pressure loss and, possibly, increase the heat transfer coefficient.

Abstract: A coil tube bundle for a heat exchanger wherein substantially rigid strips are formed with substantially equally spaced slots inwardly along a front edge thereof with each slot defining a seat opening through a narrower funnel throat, and flexible tubes of resilient circular cross section disposed across aligned rows of said strips and embraced within the seats of the slots to form an interconnected grid of rigid strips and flexible tubes, the grid being coiled to a bundle with the strips parallel to a central axis and the tubes forming spirals with convolutions contacting and spaced apart by edges of the strips opposite the slotted front edges and with the tubes supported at substantially equally intervals throughout their lengths, the plastic material of the tubes and strips being non-brittle at water-freezing temperatures. The strips and tubes are preferably of slippery plastic which is non-brittle at water-freezing temperatures.

Abstract: In order to create a space-saving, block-like heat exchanger duct bundle 14 from externally wired heat exchanger tubes without additional support structures, the heat exchanger ducts each consist of a core tube 3 having a coiled wire wrapping of wiring 16 extending over the entire length of the core tube (3), the turns of the coil are shaped so that the periphery of the wrapped coil has oppositely situated flat zones 13 to enable the ducts to be packed together. Preferably the peripheries of the wrapped coils are hexagonal in cross-section as shown so that the bundle forms a honeycomb structure.

Abstract: A stake of U-shaped cross-section which, when inserted in a tube bundle between parallel rows of tubes, dampens vibrations and provides support. One stake end is arcuately shaped for engagement with the end tube in a tube row and in one embodiment an aperture is provided to accommodate a restraint which retains the stakes in series in their engagement mode.

Abstract: A double tube helical coil steam generator is provided in which a multiplicity of inner tubes conducting water are individually surrounded by outer tubes containing liquid metal as a heat transfer agent. The double tubes form into helical coils, providing a large surface area while conserving space. Immersion of the double tube helical coil in hot liquid metal, e.g., from the core of a nuclear reactor, causes efficient transfer of heat across the liquid metal in the outer tube to the water in the inner tube, creating superheated steam, which can be cycled to a turbine and converted to electrical power. The efficiency, reliability and safety of the multiple double tube design of the steam generator obviates the necessity of many secondary heat removal and emergency components in addition to conserving space and material.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing around a pair of mandrels having expanded metal cylinders thereon into a flat coil having two spaced rows of tubing. The flat coil containing the expanded metal cylinders is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing into a flat coil having two spaced rows of tubing. The flat coil is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. A piece of expanded metal is placed between the two rows. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen and the piece of expanded metal. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree.

Abstract: Apparatus for use in a heat exchange unit having wound fin tubing including a tube support assembly having a tube support and a rod for securing runs of wound fin tubing therebetween. The rod is mounted to the tube support in rod slots providing a snap fit arrangement. The entire tube support assembly is designed for use for mounting a peripherally encasing heat exchanger that is tapered to a vertical partition.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing around a pair of mandrels having expanded metal cylinders thereon into a flat coil having two spaced rows of tubing. The flat coil containing the expanded metal cylinders is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree.

Abstract: A slit fin heat exchanger is formed by wrapping slit fin tubing into a flat coil having two spaced rows of tubing. The flat coil is located on mandrels which are rotatable about spaced parallel axes with the mandrels and axes initially being in the same plane. A piece of expanded metal is placed between the two rows. The mandrels are rotated about their axes in opposite directions which shifts the plane in which the coil is located. The shifting of the plane of the coil moves a portion of a first row of the coil into contact with a planar portion of a platen and the second row of the coil into a nesting relationship with the portion of the first row which is in contact with the planar portion of the platen and the piece of expanded metal. Continued rotation of the mandrels causes folding of the portions of the coil which extends the area of nesting. The folding takes place through up to 120.degree.

Abstract: An apparatus for retaining cooling pipes employed in an ice rink comprises a belt-shaped base member which is disposed on the floor portion of a rink and a supporting member which is integrally formed on the base member such as to project vertically therefrom. The retaining apparatus is made of flexible synthetic resin and retains cooling pipes at predetermined positions in the rink. The supporting member includes fitting notch portions for retaining the cooling pipes, the fitting notch portions each having a cut portion at the upper end thereof. The fitting notch portions for the pipes are provided at predetermined spacings over the length of the supporting member.

Abstract: Superdensity assembly method and system for coiled tubing bundle plastic heat exchangers resists the large buoyancy forces occurring due to ice build-up on the multiple tubes and provides fast melt down in phase change thermal storage tanks. The coiled tubing bundle heat exchanger in the tank is assembled from numerous vertical slippery plastic strips, for example, high density polyethylene or ultra high molecular weight polypropylene, 1/8th inch to 1/4th inch thick having keyhole-shaped slots of predetermined uniform spacing extending inwardly from the front edge of each strip. Each slot terminates in a rounded seat opening spaced inwardly a predetermined distance from the rear edge of the strip.

Abstract: A serpentine type heat exchanger for use in, for example, an evaporator or condenser in an automobile air conditioner comprises a flat tube provided with a plurality of refrigerant passages therein and bent to form a serpentine tortuous cross section. Corrugated fin units which are folded into wavy form are attached to adjacent parallel portions of the flat tube. The serpentine tortuous flat tube consists of a plurality of parallel portions spaced apart from each other in the longitudinal direction of the tube and a plurality of connecting portions each connecting with two of the adjacent parallel portions. Each connecting portion consists of a plurality of arc shaped segments and at least one central connecting segment. Therefore, the height of the heat exchanger is reduced without reducing the heat exchanging area.

Abstract: A heat exchanger of modular structure comprises stacked lattices which can engage with each other, and each is formed of two series of intercrossed small plates jointly assembled by mutual engagement at the level of cuts located on the edges of the plates, with spaces being generated for circulating fluids therethrough in heat exchange relationship.

Abstract: In a tube heat exchanger, each tube in a set has a non-round cross-section and two or more ridges extending helically around the tube's center line for keeping the center lines of the tubes at defined distances from each other, some of the tubes (14) being arranged so that the distance between the center lines of two adjacent tubes is essentially the same as or less than the sum of the radii of the circles circumscribing these tubes. Flattened cross-sections of the tubes may form a pattern of squares; or the center lines of the tubes may form a dividing pattern in the form of equilateral triangles, two adjacent tubes resting against each other at supporting points where the flattened cross-section of one tube forms a right angle with the flattened cross-section of the adjacent tube on the same level.

Abstract: In a tube-shell heat exchanger containing finned tubes, the support rod baffle contains rods having longitudinal fins and a serrated cross-section, which provide more positive contact with the finned tubes than conventional smooth rods.

Abstract: A supporting means for a tube bundle arranged in an array having a plurality of rows of parallel tubes is constructed of a plurality of first and second strip members extending transversely to one another and being interlocked at cooperating slots to form a lattice structure of crossed strips with openings for receiving the tubes, and a frame extending around the periphery of the tube bundle array in engagement with the ends of the strip members.

Abstract: A heat exchanger comprising a field of profiled tubes arranged in vertical columns and horizontal rows, each profiled tube being of oblong shape and, at least in part, surrounded by at least two supporting profile strips extending in the direction of fluid flow. The profiled strips of adjacent profiled tubes in a column are held at their ends in a well-defined position. Furthermore, the profile strips can rest directly or indirectly on other profile strips, adjacent thereto at the left or right, of adjacent profiled tubes. In this way, individual profiled tubes are longitudinally displaceable in an exact field arrangement and can compensate for changes in length.

Abstract: A minimum-wear through-bore (16) is defined within a heat exchanger tube support plate (14) so as to have an hourglass configuration as determined by means of a constant radiused surface curvature (18) as defined by means of an external radius (R3), wherein the surface (18) extends between the upper surface (20) and lower surface (22) of the tube support plate (14). When a heat exchange tube (12) is disposed within the tube support plate (14) so as to pass through the through-bore (16), the heat exchange tube (12) is always in contact with a smoothly curved or radiused portion of the through-bore surface (16) whereby unacceptably excessive wear upon the heat exchange tube (12), as normally developed by means of sharp edges, lands, ridges, or the like conventionally part of the tube support plates, is eliminated or substantially reduced.

Abstract: An improved support for a heat exchanger is disclosed and includes a support member providing four engagement surfaces. The surfaces of adjacent supports, within the heat exchanger, engage so as to provide a force distribution system therein, such that the strength and rigidity of the heat exchanger are enhanced.

Abstract: A tube support grid and spacers therefor provide radially inward preloading of heat exchange tubes to minimize stress upon base welds due to differential thermal expansion. The grid comprises a concentric series of rings and spacers with opposing concave sides for conforming to the tubes and V-shaped ends to provide resilient flexibility. The flexibility aids in assembly and in transmitting seismic vibrations from the tubes to a shroud. The tube support grid may be assembled in place to achieve the desired inwardly radial preloading of the heat exchange tubes. Tab and slot assembly further minimizes stresses in the system. The radii of the grid rings may be preselected to effect the desired radially inward preloading.

Abstract: A wrapped fin heat exchanger having a plurality of circuits is disclosed. A bottom circuit of the wrapped fin heat exchanger is arranged in multiple rows and has circuiting to provide hot gaseous refrigerant to the areas of highest frost concentration during operation in the defrost mode. The circuiting allows for hot gaseous refrigerant to enter the inner loop and then flow downwardly to the bottom of the coil where the highest frost accumulation is concentrated. Refrigerant then flows upwardly through the outer row of the coil to an intermediate transition loop. The refrigerant then flows upwardly through the inner row and then back to the outer row and downwardly to an inner stop loop before being connected to the header. Hence, by circuiting the heat exchanger in the appropriate configuration it is possible to achieve the optimal frost melting and heat transfer arrangement.

Abstract: Low pressure drop tube support elements for use in shell and tube heat exchangers comprise a series of short tubular members assembled together in a chain fashion using wire or the like. Each assembly is easily mounted longitudinally in the tube bundle. The individual elements in the chain are interconnected so that when tension is applied to the chain, each element is wedged against the tubes.

Abstract: In an arrangement of at least two discrete structural parts in package form which are spaced apart from each other, the individual structural parts are coated at least on one circumference of the structural part with a metal- or ceramic-powder collar. The powder collars serve as spacers between adjacent structural parts, are preferably sprayed on, and reliably prevent fretting corrosion between the structural parts.

Abstract: A system for interlocking closely adjacent verical lengths (10, 11, FIG. 2) of tube in a heat exchanger in which the tubes form loops between an inlet and an outlet and in which the tubes are suspended from a rigid structure by said inlet and outlet. Starting from the middle lengths, each length is provided with a hollow member (12) projecting on its side towards the outside of the bundle, welded to the tube along two generator lines (14, 24), and resting against the outer face of the adjacent length, and including a downwardly projecting lip (18), while the adjacent length is provided with an opposite like member (13) likewise welded thereto along two generator lines (15, 25), pressing against the outer face of the first length below the first member, and fitted with an upwardly projecting lip (19) engaging with the lip of the first member.

Abstract: Heat exchangers depend for efficiency upon maximizing fluid flow, such as air, through their fins about tubes extending through the fins. The air flow, particularly at the ends of a heat exchanger, can sometimes be of a significantly reduced amount owing to flow restrictions caused by the construction of, or arrangement of elements in, a heat exchanger. A core (12) of a heat exchanger (10) of the present invention utilizes a relatively varied angular arrangement for tubes (16) in the core (12) which improves air flow, particularly at the ends (28,40) of the core (12). Air flow is thus improved over a portion of the heat exchanger (10) to increase heat transfer, as well as purging of debris, for the folded or zipzag core arrangement described.

Abstract: A device is provided for heating a room by convection using the heat from a conventional radiation heat source. The heating device further acts as a fireplace guard when the heat source is a fire to substantially prevent sparks or other small particles of combustion from entering the room in which the fireplace is located. The device includes a threshold unit and a plurality of spaced pipes. The pipes are supported by the threshold unit while a screen member such as metal gauze is connected between the pipes. An opening in the threshold unit is adjacent the floor surface of the room in which the heat source is located. The radiation from the heat source raises the temperature of the pipes while relatively cool air enters the opening in the threshold unit and passes into the pipes. The temperature of the air is increased by the heated pipes and exits from the top thereof to heat the room by convection.

Abstract: This disclosure relates to an aircooled heat exchanger including first and second sets of tubes that carry a fluid to be cooled. One end of each tube is connected to an inlet header and the other end is connected to an outlet header. Each tube includes first and second longitudinal portions which are joined or connected by an intermediate bent portion. The tubes are arranged in the flow path of a cooling air flow. The first portions of the first set of tubes are located upstream, with respect to the direction of air flow, relative to the second portions of the first set and relative to the first portions of the second set, and the second portions of the second set are located upstream relative to the first portions of the second set and to the second portions of the first set. This offset relation of portions of the tubes substantially equalizes the heat exchange with the air.

Abstract: A constant level of liquid carbonation is achieved irrespective of the rate at which liquid is supplied to a carbonating vessel by, respectively, establishing a thin film of liquid over refrigerated heat transfer surfaces, which may take the form of plates, and controlling, in response to the flow-rate of the liquid, the area of the heat transfer surface covered by the liquid film.

Abstract: A heat exchange device for mounting between the front fork and the engine of a motorcycle comprises two vertical coolant outflow tanks on either side of a core area, and a coolant inflow tank located midway between the outflow tanks and connected to the latter. The lower part of the device comprises a series of bent tubes having cooling fins therebetween, to form an inverted U-shaped space which straddles the top of the engine, so as to provide sufficient clearance to accommodate the expansion and contraction strokes of the front fork.

Abstract: A tube panel having both vapor generating and superheating tubes. At least two parallel vapor generating tubes are spaced apart to provide a gap therebetween. A superheating tube is contiguous with each of the two vapor generating tubes and is disposed rearwardly of the gap to span the gap for receiving radiation energy from forward of the gap to assure a proper distribution of incident heat flux among the vapor generating and superheating tubes while eliminating the need for complex and expensive vibration support members for the vapor generating tubes. In accordance with a preferred embodiment, a support member is disposed rearwardly of and adjacent the superheating tube and extends transversely to the longitudinal direction thereof, and the vapor generating tubes are supported by tie bars connected between the respective vapor generating tubes and the respective support member to effectively support the superheating tube between the vapor generating tubes and the support member.

Abstract: A heat transfer apparatus adapted for installation in a mobile liquid container such as a railroad tank car. The apparatus includes inlet and outlet ports at opposite ends of a continuous finned pipe. The continuous finned pipe extends within the container to provide a surface for conductive heat transfer from the heat transfer fluid flowing through the pipe to the contents of the container.The continuous finned pipe is provided with shock absorbers and flexible loop portions to prevent damage to the apparatus from inertial shocks to the container. A preferred embodiment is designed particularly for use in railroad tank cars adapted to carry molten sulfur. The apparatus is used to remelt the sulfur, which has solidified in transit, for unloading.

Abstract: A compact multiple coil heat exchanger having a high heat transfer density is provided to include at least an inner coil formed from a continuous tube into a plurality of contiguous turns about a common axis in a spiral arrangement and having a pitch in one direction and an outer coil formed from the continuous tube into a plurality of overlapping turns concentrically about the inner coil in a spiral arrangement having an opposite pitch. Further, a coil-forming apparatus and continuous coil-forming method is directed to form a multiple coil heat exchanger from a continuous tube using a coil-forming die rotatably mounted on a support frame. The coil-forming die includes a continuous spiral thread constructed to receive and laterally support the continuous tube while fabricating the multiple coil heat exchanger according to the continuous coil-forming method of this invention.

Abstract: Apparatus for use in a heat exchange unit having wound fin tubing including a tube support assembly having a tube support and a rod for securing runs of wound fin tubing therebetween. The rod is mounted to the tube support in rod slots providing a snap fit arrangement. The entire tube support assembly is designed for use for mounting a peripherally encasing heat exchanger that is tapered to a vertical partition.

Abstract: Desublimator for isolating sublimation products from reaction gases, which consists of a closed housing and a plurality of rows of finned tubes accommodated horizontally and superposedly therein, successive superposed finned tubes being supported, and mutually spaced, with limited adjustability, by means of cage-like perforated sliding shoes surrounding them in a box-like manner, the sliding shoes of the individual finned tubes being directly stacked one above the other and resting loosely on common supporting girders anchored to the housing, and the supporting girders having, in cross-section, the outline of a triangle with its apex pointing downward.

Abstract: In a woven ceramic heat exchanger using the basic tube-in-shell design, each heat exchanger consisting of tube sheets and tube, is woven separately. Individual heat exchangers are assembled in cross-flow configuration. Each heat exchanger is woven from high temperature ceramic fiber, the warp is continuous from tube to tube sheet providing a smooth transition and unitized construction.