Abstract: In the finned-tube heat exchanger of silicon-infiltrated silicon carbide, in which the tubes of a tube bundle, with the cooling medium flowing around the tubes, are arranged mutually parallel in a housing provided with an inlet and outlet for the cooling medium, the tubes of the tube bundle are joined to one another by fins. The fins have apertures and are arranged transversely to the tube bundle.

Abstract: Apparatus for providing heat to a reaction chamber in which an endothermic reaction is performed under utilization of hot smoke gas includes a barrier, preferably a tubular barrier at least partially enclosing the reaction chamber but being spaced therefrom; hot smoke gas is fed to a ring chamber outside of the barrier and caused to flow there along while losing some of its heat content until at a lower end of the barrier the flow of the cooled smoke gas is reversed and the gas is introduced into a gap between the barrier and the reaction chamber so that heat is transferred through the barrier from the hot smoke gas as it flows along the outside of the barrier to the gas as it flows in the gap for heating the reaction chamber in an essentially uniform manner.

Abstract: The present invention relates to a unitary heat exchanger for an air conditioner which is capable of minimizing the size, weight, and the power consumption thereof, and improving the thermal efficiency. The unitary heat exchanger comprises an air intake member for introducing the room air, and a combustion furnace for firing a fuel with the air introduced through the air intake member to generate a hot combustion gas. A heat exchanger is disposed in line with the furnace for passing the hot combustion gas from the combustion furnace therethrough and heating fresh room air supplied by a blower. An air exhaust member discharges the hot combustion gas from the heat exchange means.

Abstract: Disclosed is an improved heat exchanger whose flow rate and heat exchange rate are so improved that it may quickly respond to any demand in a very efficient way. This heat exchanger comprises a tank in which a first fluid may be circulated, this tank having an inlet port and an outlet port for the first fluid, and at least one heat conductive tubular element located within the tank, and in which a second fluid may be circulated in order to exchange heat with the first fluid within the tank, this at least one heat conductive element having ends leading outside the tank. A fluid injector is operatively connected to at least on one of the ports of the tank to generate turbulences and prevent the formation of dead spots within the tank. This injector is preferably in the shape of a loop and provided with a plurality of perforations, the loop extending in a plane parallel to and near one end of the tank.

Abstract: A plurality of baffles for adjacent finned tubes of a heat exchanger wherein a first fluid flows in the finned tubes and a second fluid of a different temperature flows past the finned tubes in heat transfer relationship therewith, include a baffle for each adjacent pair of finned tubes. A first flow path for second fluid extends in between baffles at one of the finned tubes, and a second flow path for second fluid extends in between baffles at an adjacent other of the finned tubes. The second flow path is larger between baffles at the other finned tube than the first flow path between baffles at the one finned tubes, and the second flow path is longer along baffles at the other finned tube than the first flow path along baffles at the one finned tube.

Abstract: The barrel assembly of the heat exchanger is manufactured with abutment joints between the housing and the headers thereof, and is clamped together along the axis of the assembly by a rod extending through the respective headers, and the housing, parallel to the axis, so that the housing is not vulnerable to "blowing its ends" when under pressure. The housing is also free draining at the discharge header when relieved of pressure, and this combination of features is made possible in part by the use of an insertable fluid flow cartridge for the housing which provides the tubing for one of the fluids and baffling for the other fluid when the latter fluid is circulated through the housing.

Abstract: A cross-flow heat exchanger comprising according to a preferred embodiment a shell formed of two concentric cylinders providing an annular space. A number of tubes and baffles are arranged in the annular space such that one fluid flows through the tubes in a helical fashion in the annular space and the second heat exchange fluid flows in a counter helical path in such annular space across the tubes, constrained by the baffles in such annular space. In another embodiment cross-flow is also achieved using spirally shaped tubes and spirally shaped baffles.

Abstract: A heat exchanger with internal fluid pressure relief means [33,54], and including an exchanger body [14] and a bundle of tubes [11] disposed therein. A baffle [23,46] directs liquid flow over the tubes and around the baffle at one end [26,48] spaced from the exchanger body. A spring-loaded portion [33,54] of the baffle permits relief of excessive liquid pressure applicable to the tubes.

Abstract: A heat exchanger (18) located in an enlarged flow area section (10) of a duct (12) includes a plate (14) located downstream of the exchanger for improving distribution of the duct flow.

Abstract: A heat exchanger having a plurality of tubes extending between front and rear tubesheets, baffles arranged inside the shell along a longitudinal direction of the tubes and 2 types of weld structures on respective tubesheets. Each of the tubes has an outer diameter in the range of 25.4 to 50.8 mm and the front tubesheet has a thickness less then 50 mm. The 2 types of welds comprise:(a) a structure (Type A) in which the tubesheet is provided with a hole having an inner diameter substantially equal to that of the tube, a protruded peripheral portion formed around an outside opening of the hole and an inside stepped cutout into which the end of the tube is inserted and a weld formed; and(b) a structure (Type B) in which the tube sheet is provided with an inner tapered hole and an adjacent communicating linear small diameter hole, a tube having an end portion provided with an inside stepped cutout which is inserted into the small diameter hole, and a weld formed.

Abstract: A multiple tube heat exchanger formed from a number of elbow members which when combined form a "U" shaped jacket, an elongate tubular section connected to the ends of the U-shaped jacket, a number of heat conductive U-shaped tubular members mounted in the jacket, a tube sheet mounted on the ends of said tubular members and tubular sections and a number of baffles for supporting the tubular members in a spaced relation from said tubular sections.

Abstract: A heat exchanger of the tube-fin type comprising a tank (10) having first (14) and second (16) ends, a plurality of tubes (34), a plurality of baffles (38) and a plurality of fins (42). A cap (50, 52) is connected to each end (14, 16) of the tank (10) and includes a fluid coupler (60, 61). Each cap (50, 52) comprises a female member (74) disposed therein including a plurality of interior passageways (88), first (90) and second (92) annular channels intersecting with opposite ends of the passageways (88), and a plurality of islands (94) bounded by the passageways (88) and first (90) and second (92) channels. The tank (10) further comprises a male member (72) extending from each end (14, 16) and including a plurality of outwardly extending tabs (76), an annular extending rim (82), and an annular resilient seal (84).

Abstract: A baffle in a heat exchanger having two sections hingedly connected so as to facilitate removal of the tube bundle. A top section of the baffle defines a plurality of apertures through which tubes of a removable bundle extend and has edges one of which is connected to an edge of the bottom section of the baffle in a manner which permits the bottom section to rotate relative to the top section when the heat exchanger tube bundle is being removed. When the novel features of this invention are incorporated in a heat exchanger, removal of the tube bundle is facilitated.

Abstract: A heat exchanger having two or more tube bundles extending parallel to the shell with a central longitudinal space between the tube bundles. The tube bundles have a longitudinal axis is symmetry in such space. The tubes in each bundle are laid out in concentric arcs. The arcs of each bundle have a common center of curvature which is displaced from the axis of symmetry and also from the center of curvature of each other tube bundle. The corners between the tube bundles may contain fill-in tubes. This allows compact tube packing while preserving relatively uniform fluid velocities.

Abstract: The invention relates to an arrangement in a wet electrostatic precipitator (1) intended for cleansing moisture-and-dust laden gas. The wet electrostatic precipitator (1) includes a condensing cooling arrangement (21) which is integrated with the precipitator unit (20) of the electrostatic precipitator. A plurality of emission electrodes (4) are located within the collector electrodes (5) and the collector electrodes extend through the cooling arrangement (21). Means in the form of distribution pipes (50, 60) are disposed in the upper and lower end-parts of the precipitator unit (20), in a manner such as to achieve uniform distribution of cooling medium (23) on the outer surfaces of the collector electrodes (5), the gas flowing forwardly within the collector electrodes (5).

Abstract: A marine power system having closed loop cooling includes a marine engine having a cooling fluid passage defined therethrough through which a cooling fluid stream may pass. A shell and tube heat exchanger has a tube side flow path and a shell side flow path defined therein. Cooling fluid conduits connect the cooling fluid passage from the marine engine to the tube side flow path so that the cooling fluid stream from the engine is directed through the tube side flow path of the heat exchanger. A raw water supply system directs a raw water stream from a body of water through the shell side flow path and then back to the body of water. The heat exchanger includes an outer housing and a tube bundle receiver in the outer housing. The outer housing is comprised of a shell and first and second end caps. The tube bundle includes a plurality of straight parallel tubes held between two spaced bundle bases. The housing and the bundle bases are constructed of non-metallic corrosion resistant materials.

Abstract: A high pressure heat exchanger has a body with spaced apart parallel plates with side walls joined to the peripheral edge of each plate; a tubular high pressure liquid inlet header external of the body; a tubular high pressure liquid outlet header external of the body; a plurality of separate tubular runs in communication with the inlet and outlet headers; each tubular run including a tubular portion between substantially all adjacent plates of the body; the tubular portions of the same run being interconnected at one end by a tubular liquid return with a tubular portion on the opposite side of a first adjacent body plate and interconnected at the other end by a tubular liquid return with a tubular portion on the opposite side of a second adjacent body plate; the body internal plates having a liquid communication opening which permits a second liquid to flow from the space on one side of a baffle plate to the space on the other side of the baffle plate in a serpentine flow path through the body while in heat

Abstract: A multi-tube type heat transfer apparatus includes a plurality of heat transfer tubes disposed in parallel to each other within a shell wall. A plurality of holes having a larger diameter than the outer diameter of the heat transfer tubes are provided in each of a plurality of baffle plates disposed at intervals within the shell wall. The heat transfer tubes extend through the respective holes. A flow passageway of fluid on the side of the shell is composed of annular spaces formed between the outer circumference of the heat transfer tubes and the inner circumferences of the holes in the baffle plates.

Abstract: A superheater bundle for a horizontal steam separator-superheater, the bundle comprising an array of parallel tubes disposed in a triangular pitch inside a frame (3, 4) which is polygonal in shape and symmetrical about its plane of symmetry, with the bottom of the frame delimiting an inlet orifice for steam to be superheatd and with the top of the frame delimiting an outlet orifice for superheated steam. At least two of the sloping sides (11, 13, 15, 15, 17; 12, 14, 16, 18) of th polygon-shaped frame (3, 4) are parallel to the sloping segments formed by the pitch of the tubes.

Abstract: A shell-and-tube heat exchanger with a tube sheet having false partition grooves which allows the periodic rotation of a removable heat exchanger tube bundle, as well as a method of performing such rotation.

Abstract: A baffle for a tubular structure of at least two pairs of spaced tubes comprises a first baffle sheet having two portions curved in accommodation of spaced tubes in one of the pairs, and a second baffle sheet having another two portions curved in accommodation of spaced tubes in the other of the pairs when said baffle is inserted in between these two pairs of spaced tubes. These first and second baffle sheets are structurally interconnected and biased away from each other for self-clamping retention between the two pairs of spaced tubes. The first and second baffle sheets preferably are spaced from each other for their clearing corresponding spaced tubes when they are moved toward each other against the above menbtioned bias for an insertion in between the pairs of spaced tubes.

Abstract: A heat exchanger is described wherein each heat transfer tube is individually removable along its longitudinal axis such that a dense tube configuration within the heat transfer chamber can be maintained.

Abstract: Improved performance is obtained in a multi-tube reactor for oxidation of ethylene to ethylene oxide by providing a distribution zone for the coolant located downstream of the catalyst and a contiguous cooling zone. The effluent gases from the oxidation are cooled in the cooling zone by a fluid, which has been only slightly preheated and distributed uniformly in the distribution zone by contact with tubes in which the effluent gases are in low-turbulence flow. Uniform distribution of the coolant provides substantially equal cooling of the effluent gases in each tube, thus minimizing the variation in effluent gas temperature among the tubes. Preferably, the tubes in the cooling section are packed with inert particles to facilitate heat transfer, while the tubes are empty in the distribution section to reduce heat transfer.

Abstract: An exhaust heat exchanger system recovers heat from exhaust gas emitted from a prime mover, for example, a diesel engine, gas engine, gas turbine, etc., and/or to reduce harmful components such as NO.sub.X (nitrogen oxides). A high-temperature side heat exchanger section and a low-temperature side heat exchanger section are disposed in a single casing and these heat exchanger sections are connected together through a duct. An exhaust gas purifying catalyst is disposed in the duct. Accordingly, it is possible to simplify the mechanism of the exhaust heat exchanger system, reduce the overall size of the system, lower the production cost and minimize the installation space. Further, the exhaust gas purifying operation is efficiently carried out by the action of the catalyst.

Abstract: A swimming pool heating system includes in sealed tank, a refrigerant cooling coil system contained within the sealed tank and a water flow distribution manifold within the refrigerant cooling coil system. Cool swimming pool water is pumped through the water flow manifold such that is imparts a cyclical flow of water over the refrigerant cooling coil system. The warmth of the warmed refrigerant is imparted to the cool swimming pool water and the warmed swimming pool water then exits the water flow manifold and is returned to the swimming pool.

Abstract: A gas-to-liquid heat exchanger formed by winding circular finned tubing into a helical coil has bare tubing wrapped around the coil such that it nests between adjacent turns of the finned tubing. Fittings at the inlets and outlets of both coils distribute the liquid stream so that a portion flows through each coil. The fan tube coil acts as a cooled baffle which directs the hot gas stream flowing over the finned tubes so that it contacts a greater portion of the finned tube external surface area at high velocity and increases the heat transfer effectiveness. Because the baffle is cooled, its temperature remains close to that of the finned tubing. This protects the baffle and eliminates differential expansion which could cause the baffle to fall off or loosen during operation.

Abstract: A heat exchanger for use with high pressure gases is disclosed which has a generally cylindrical shell through which pressurized gas is passed. A plurality of stacked, high pressure, fluid-carrying serial coils are arranged in parallel serpentine paths within a frame member to form a structurally independent unit. The frame member is attached to an inner support member provided within the shell to position and align the frame member and coils. In operation, the coils are arranged primarily transverse to the flow of the gas, yet, because of the serpentine path, the flow of fluid through the coils is counter to or parallel with the flow of gas in the shell. The frame member supports the serpentine coils and contains any vibrations of the coils caused by the shell gases passing over the coils.

Abstract: A heat exchanger for a turbine generator power plant includes a plurality of heat transfer tubes for transferring heat from a primary fluid cooling system to a secondary water cooling system subject to variations in inlet temperature and the presence of emulsified particles. Upon a reduction in flow rate in the secondary system, as when accommodating a reduced inlet temperature, a reusable plug assembly comprising compression-actuated cap and plug members is installed on the ends of a selected portion of the heat transfer tubes to increase flow through the remaining heat transfer tubes and thereby reduce the tendency toward sedimentation of the impurities in the tubes. An alternative construction of the plug assembly allows the assembly to be installed with access to only one end of the heat transfer tubes.

Abstract: A high pressure, multi-tube and sheet-type heat exchanger including a U-shaped jacket formed from a pair of elongate tubular sections, a fluid medium inlet disposed adjacent one end of one of the tubular sections and a fluid medium outlet disposed adjacent one end of the other tubular section, and a pair of U-shaped semicircular half sections connecting the other ends of the tubular sections, a plurality of one-piece U-shaped tubes of heat conductive material arranged in parallel-spaced relation within the jacket through which the high pressure product flows and a tube sheet mounted on the end of each tubular section, each tube sheet being provided with a plurality of openings corresponding to the number of tubes in the jacket, the tube ends being aligned in the openings in the tube sheets and sealingly affixed thereto either by welding or by press fitting a tubular insert into the open end of the tubes.

Abstract: A plate fin heat exchanger is provided having: a core having a plurality of warm layers for conducting a warm fluid and a plurality of cold layers for conducting a cold fluid, the warm layers making a first pass parallel to at a front face of the exchanger, the front face being first exposed to the cold fluid, and then passing in an essentially counterflow pattern to the flow of the cold fluid through the exchanger from a back of the exchanger to near the front face thereof; and a baffle disposed at the back face of the heat exchanger, the baffle being adapted to create a high pressure profile at the front face such that the cold fluid is distributed upon the front face in such a manner that snow and ice build-up upon the front face is minimized.

Abstract: An evaporator having a vertically mounted elongated tubular chamber, a pair of upper and lower tube sheets mounted near the ends of said tubular chamber, each tube sheet having a plurality of openings therein with a plurality of vertical evaporator tubes mounted between the pair of tube sheets, tangentially mounted inlet tubes between the upper tube sheet and a top cover for the tubular chamber, and an inverted cone mounted as a filler piece on the underside of the top cover and having its apex just slightly spaced from the upper tube sheet and its circumferential edge substantially spaced therefrom for effecting a uniform and even flow and distribution to the evaporator tubes of a liquid/solid mixture inputted into the tangential inlet tubes. The elongated tubular chamber is also provided with lateral inlet and outlet openings for inputting/outputting heated and subsequently cooled fluid to flow externally past the evaporator tubes.

Abstract: A proportion of the liquid metal flow passing through a fast reactor steam generator unit (SGU) is diverted past the outlet to a quiescent zone in the region of immersed tube-to-tubeplate welds at the water entry ends of the tubes, into which zone are given off any hydrogen bubbles which may result from a water leak into the liquid metal. The liquid metal in this zone is caused to flow through a weir system above which there is a gas space for collection of hydrogen, suitable means being provided for detection of hydrogen in this space. The hydrogen is entrained at the water inlet tube plate, the invention making use of the slow solution rate of hydrogen in sodium at lower temperatures prevailing in the quiescent zone at the water inlet end.

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: The invention relates to a heat exchanger, particularly a counter-flow heat exchanger for use in a Joule-Thomson refrigerator. The heat exchanger includes a casing having at least one pipe disposed therein which defines a first flow passage for conducting a first fluid. A second flow passage is provided between the pipe and the casing for conducting a second fluid in heat transfer relationship with the first fluid. A plurality of wire nets are provided along each of the two flow passages to facilitate heat transfer between the two respective fluids.

Abstract: The tubes in a tube bundle which is laid out in an alternating array of tubes and empty lanes are supported by corrugated slats positioned in the empty lanes, separating adjacent rows of tubes, the corrugations of each of the slats extending along the length or circumference of the slat to support the tubes and generate turbulence.

Abstract: Rod type supports or baffles are disclosed for arrays of tubes, especially those arranged in the form of a tube bundle. Each baffle comprises a pair of arcuate surfaces with a plurality of rods extending therebetween and each rod being non-normally disposed with respect to the axis of a tube bundle. In a preferred embodiment, a plurality of baffles are employed in a tube bundle so as to cause shell side fluid to sweep across the tubes in a spiral pattern, such as a double helical pattern. The invention provides an improvement in the mixing of shell side fluid in a rod baffle heat exchanger.

Abstract: The invention provides fluid handling apparatus which may be heat exchange apparatus or fluid reaction apparatus. The apparatus is provided with an interrupter structure for disrupting the fluid boundary layers at the walls of the apparatus and promoting mixing of the separated boundary layers with the adjacent core layers. One interrupter structure comprises a plurality of longitudinally-spaced interrupter elements mounted on a core rod, each element comprising a plurality of blade-like members each of at least approximately spherical segment profile in side elevation, the members extending mutually radially outward relative to one another to touch or nearly touch the said surface or surfaces adjacent the elements. The elements are spaced longitudinally from one another the distance required to provide wake intererence flow of the fluid, wherein the vortex upstream of one element cooperates with the vortex downstream of the next element in the fluid path.

Abstract: A brush seal for first and second spaced, adjoining members which are capable of undergoing universal relative displacement, the seal comprising a plurality of flexible bristles having opposite ends, one of which is secured in a clamp causing the bristles to fan outwardly towards the other end. The second member supports a joint defining a space with a throat into which the fan of bristles enter and are resiliently squeezed at the throat. The free ends of the bristles are spaced for free movement in the joint lengthwise of the bristles to accommodate relative movement of the members towards and away from one another. Relative movement of the members longitudinally in their respective planes in taken up by sliding of the bristles within the joint while relative movement of the members transversely in their respective planes is taken up by bending of the bristles at the throat. In the case of all relative movement of the members, the bristles maintain sealing contact with the joint at the throat.

Abstract: Heat exchanging device wherein plural number of support plates are provided at a required distance from one another, a plurality of through holes are formed on these support plates, a plurality of spirally corrugated heating tubes of a fluorocarbon resin are put in each of the through holes independently from one another and these heating tubes are held by elastic bushings in the support plates.

Abstract: Apparatus for effecting heat exchange between first and second fluids in a heat exchanger in which a first fluid is conveyed through a plurality of spaced U-shaped tubes assembled in a matrix of the heat exchanger, and a second fluid is conveyed around the tubes of the matrix in a direction perpendicular to the matrix so that heat exchange takes place between the first and second fluids. The U-shaped tubes have bends facing a guide wall of the heat exchanger and form a gap therebetween to permit relative movement of the tubes and the guide wall, for example, due to differential thermal expansion and vibration. Flow of the second fluid through the gap is blocked by a resilient sealing element which resiliently accommodates the relative movement of the tubes with respect to the guide wall and damps vibration. The sealing element can be a flexible mat of elastic metal felt.

Abstract: A casing for a shell- and tube-type heat exchanger is produced by deforming two axially spaced portions of a length of tubing to make their integral peripheries either larger than or smaller than the internal periphery of an intermediate portion of the casing which is interposed between the end portions. A tubestack comprising tube elements supported by tubeplates is received within the casing, with the tubeplates being disposed at least partially within the end portions respectively. In the case where the natural bore of the tubing (which forms the internal periphery of the intermediate casing portion) is accurately sized and one of the end portions has a larger internal periphery than said bore, transverse baffles of the tubestack can have external peripheries which are accurately sized to engage the internal periphery of the intermediate casing portion. Otherwise, the baffles can have flexible tires mounted on their peripheries to engage the internal periphery of the intermediate casing portion.

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: An apparatus for effecting mass and/or heat transfer, comprising a bundle of hollow filaments of substantially equal length, the ends of which are embedded in a sealing compound, a substantially cylindrical housing with connecting branches for the supply and removal of at least two media, the first medium being guided through the hollow filaments and the second medium being guided radially inwardly at the flow inlet of the housing and radially outwardly at the flow outlet, the housing comprising a substantially tubular body and two caps. The connecting branches are disposed in the caps. Each cap forms with the ends of the substantially tubular body two distributor chambers, the first of which is disposed on the end face and the second on the outside jacket of the tubular body. The outside jacket of the tubular body has at least one port in the area of the second distributor chamber. The interior of the substantially tubular body may widen conically from one end area to the other.

Abstract: A mass/heat exchange device for use as blood oxygenator, dializer, heat exchanger and the like, includes a rectangular or cylindrical elongated housing with first and second opposite axial ends. The interior of the housing is subdivided into three chambers, including an inlet chamber located at one axial end, an outlet chamber located at the opposite axial end and a central mass/heat transfer chamber located therebetween. A plurality of parallel tubes extend through the central chamber and connect the inlet and outlet chambers to provide passageways for treating medium to flow therebetween. The outer surface of each tube has the shape of a series of spherical lobes, connected end-to-end. Further, adjacent tubes are offset from one another to allow internesting of their lobes in a tight orderly packed manner. The treating medium, for example oxygen, flows through the tubes while a medium to be treated, for example blood, flows through the interstitial spaces between the tubes.

Abstract: A ventilation unit for heating or air-conditioning in a motor vehicle. The unit includes a blower and a heat exchanger, with a diffuser positioned in the flow of air from the blower. The diffuser spreads the air flow so that it substantially covers the heat exchanger area. A grid positioned between the diffuser and the heat exchanger aids in spreading the flow of air to the peripheral portions of the heat exchanger.

Abstract: A tube support plate is disclosed for supporting a plurality of tubes with reduced vibration in a nuclear steam generator. The support plate has a plurality of holes disposed therethrough in a regular array. Each hole has an axis, an interior surface and a plurality of lands supported on the interior surface and extending towards the axis. The support plate has a given thickness as taken along the hole axis, and each of the lands has a tapered surface for facilitating tube insertion. The method of forming the tube support plate comprises a first step of forming each of the holes through the support plate with a first cylindrical portion of a first diameter and a second cylindrical portion of a second diameter less than the first diameter. Next, portions of the second cylindrical portion are removed in a second step to form a plurality of lands having exposed ends supporting a tube within the hole.

Abstract: An improved heat exchange construction for tube bundle heat exchange systems including shell (4) and tube (6) types (2), incorporating detached, essentially spherical flow interrupters (24, 26) arranged in an interconnected matrix configuration (22), and disposed within the tube bundle interstices (9, 11). Substantial improvements in heat exchange and exchanger tube life, is provided. The mechanically interconnected matrix configuration of the flow interrupters provides an economical and easily assembled means to improve heat transfer outside of individual tubes in a tube bundle configuration. Continuous tube support is also provided by tube/interrupter contact, thereby greatly decreasing fatigue failures encountered in presently used multiple tube, tube/shell heat exchanger configurations (2).

Abstract: A wetted wall type method of humidifying gas with a liquid which is composed, or mainly composed, of water wherein the liquid flows down a heated vertical wall to form a wetted wall and gas flows along the wetted wall in contact with the liquid on the wetted wall to increase the humidity contained in the gas, comprises supplying a greater amount of liquid than the amount of liquid used or evaporated for increasing the humidity, and recirculating the liquid which is not evaporated from an outlet of the wetted wall to a liquid supply portion, the amount of the flowing liquid being adapted to satisfy the following equation:q<5.99.times.10.sup.5 .GAMMA..sup.2.12 (1)wherein q is the heat flux in W/m.sup.2 K where W=watts, K=temperature in degrees Kelvin, and .GAMMA. is the amount of flowing water with regard to the mass of water per unit wet width in kg/ms.

Abstract: The invention comprises a high performance segmented baffled shell and tube heat exchanger in which baffles are oriented at angles less than 180.degree. adjacent one another.

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.