The heat exchanger
(57) Abstract:Usage: as regenerators for gas turbine engines. The inventive heat exchanger includes a housing 1 with input and output pipes, distribution and cameras team for the first fluid. In case you have the package 8 of the corrugated plates, cross punch and Windows, and the plates are interconnected by a peripheral edge, the punch edges and window pairs with the formation of channels for both carriers, are confined to surfaces of the mutually overlapping corrugation, cross punch located in the channels, and inlet and outlet manifolds for the second fluid. In the cells and the package 8 is set accordingly deflectors 19 and the dividing wall 20, which together form a serially connected heat transfer section with a counter-current movement of the coolant. In the package 8 installed additional dividing wall 22 with an overflow channel connecting the reservoir and cross punch are V - shaped with the top facing up. On the side wall of the housing may be attached to the trap. Inlet and outlet of m is x the vessel wall. 5 C. p. F.-ly, 6 ill. The invention relates to a surface gas-liquid or gas-air heat exchangers, such as a regenerator for gas turbine engines.Known heat exchangers, containing the symmetric case with coaxial inlet and outlet nozzles, distribution and team cameras, limited flat end and cylindrical side walls and mounted in the housing package, consisting of plates with a punch of corrugated plates are interconnected in pairs by peripheral edges to form channels for both environments, limited by the surfaces of the mutually peresekajushihsya bumps.The heat exchanger is closest to this invention, the essential features and adopted as a prototype.The described heat exchanger is not effective enough and the degree of heat recovery for use in a gas turbine engine is insufficient.The aim of the invention is to eliminate this drawback. This is solved in that the reservoir is formed is made in the plate Windows with flanging, bonded pairs, the plates are made of cross punch, forming a zigzag channels, is located in the cells, to consistently reported heat transfer section with privatecam movement of fluids. Within the sections there are additional separation wall, which made the bypass channels, informing inlet and outlet manifolds. The body is horizontal, cross punch are at the same angle relative to the vertical plane of symmetry of the hull with the formation of the inverted top up of V-shaped channels, with the side wall of the housing is equipped with a trap. One of the nozzles mounted on the side wall of the housing tangentially. The second nozzle is also mounted on the side wall of the housing tangentially, when the axes of the nozzles are mutually perpendicular, and the plate pack has two straight parallel peripheral edges, angled 45aboutto the axes of the nozzles. The axis of at least one of the socket is parallel to the axis of the housing.In Fig. 1 shows a section of the heat exchanger of Fig. 2 the section of the heat exchanger along a 0 0 B; Fig. 3 the cross section of the package In Fig. 4, 5, 6 mounting options pipe.The heat exchanger has a housing with side 1, end 2, and 3 walls, input 4 and output 5 patrol the package 8, consisting of plates 9 with a punch bumps, cross punch 11 and the window 12 with the formation of the channels 13 and 14 for both fluids, which are limited to the surfaces of vzaimoneperesekayuschihsya bumps and cross punch located in the channels 13 and 14 for the first and second heat transfer fluids. The window 12 in the collection form the inlet 15, the outlet 16 and coaxial with them intermediate 17 collectors for the second fluid. Plate 9 package 8 are interconnected by welding or soldering in pairs by edges 18 of the peripheral punch, and punch the window 12. At junction 6 and team 7 cameras installed deflectors 19 and the package 8 dividing wall 20, which together form a serially connected heat transfer section 21 counterflow movement of fluids. In addition, the package 9 can be installed additional dividing wall 22 made them overflow channels 23 connecting the collectors 15, 16 and 17. Cross punch 11 can be performed with symmetrical tilt relative to the vertical plane, as shown in Fig. 2. When the punch 1 is formed facing the top of the upward V-shaped channels 24. On the side wall 1 of the casing of the heat exchanger installed on the side wall 1 tangentially (see Fig. 4) when the radial position of the other of the socket 4. As shown in Fig. 5, both of the socket 4 and 5 can be installed tangentially to the wall 1 with mutually perpendicularly the position of the axes. The package 8 is tilted to the nozzles 4 and 5 at an angle of 45about. One of the nozzles (Fig. 6 is a pipe 5) can be strengthened and the end wall of the housing of the heat exchanger.The heat exchanger works as follows.The first fluid, for example in the turbine exhaust gas, if the heat exchanger is used as the regenerator of a gas turbine engine, is supplied to the inlet pipe 4, and then into the distribution chamber 6, passes through the channels 13 of the package 8 between the plates 9, consistently flowing in sections 21 formed by the deflectors 19 and wall 20. Giving its heat to the second fluid, for example air coming into the combustion chamber, the gas flows into the collecting chamber 7 and is removed through the outlet 5. The second fluid enters the inlet manifold 15, flows through the channels 14, the intermediate reservoir 17 and is discharged through the manifold 16, the heated first heat transfer fluid through the walls of the plates 9. This cross punch 11 form a zigzag course teplonositeley liquid medium. The use of partition walls 20 and baffles 19 provides a counter-current movement of fluids in the series connected sections 21, which significantly increases the efficiency of heat transfer in comparison with the prototype. To further increase the efficiency results of the application of the additional dividing walls 22 with a by-pass channels 23. The bypass of the second coolant through the channels 23 provides multiple countercurrent flow of fluids within the same partition 21, as shown in Fig. 1. If there is a risk of condensation in the flow part of the heat exchanger, cross punch, it is expedient to do so, as shown in Fig. 2. In this case, the condensate flows through the channels 24 on the inner surface of the wall 1 and is removed through the trap 25. Embodiments of the heat exchanger shown in Fig. 4, 5 and 6, can refuse suitable in different layout solutions of a system in which the heat exchanger. 1. A heat EXCHANGER comprising a housing and a package of pairs connected to each other at peripheral edges of the corrugated plates, and inlet and outlet nozzles, team and distribution chambers for the first theplanetary made in the plates Windows with flanging, bonded pairs, the plates are made of cross punch, forming a zigzag channels, and the body cavity separated by flat walls, installed within the package and flat baffles located in the cells, consistently reported heat transfer section with a counter-current movement of fluids.2. The heat exchanger under item 1, characterized in that the inside of the sections, there are additional separation wall, which made the bypass channels, informing inlet and outlet headers.3. Heat exchanger according to PP. 1 and 2, characterized in that the housing is horizontal, and transverse punch are at the same angle relative to the vertical plane of symmetry of the hull with the formation of the inverted top up of V-shaped channels, with the side wall of the housing is equipped with a trap.4. Heat exchanger according to PP. 1 to 3, characterized in that one of the nozzles mounted on the side wall tangentially.5. Heat exchanger according to PP. 1 to 4, characterized in that the second nozzle is also mounted on the side wall of the housing tangentially, when the axes of the nozzles are mutually perpendicu is UP>oto the axis of the pipe.6. Heat exchanger according to PP. 1 to 3, characterized in that the axis of at least one of the socket is parallel to the axis of the housing.
FIELD: agriculture: heat engineering equipment for poultry and stock-rearing.
SUBSTANCE: the invention is dealt with the field of agricultural heat engineering equipment ensuring a heat transfer from one heat-exchanger to another in presence of aggressive corrosion-influencing components in one of them. The equipment may be used in the gas-air ventilation facilities of heat recovery in poultry and stock-rearing farms. The method of production of a cross-running heat exchanger out of a polymeric material containing a package made out of polymeric cellular plates bound to each other and encased in a box ensuring an inlet and an outlet of warm and cool air streams. At that the cellular plates located in one direction in a package are bound to each other by a two-sided polymeric adhesive tape through gaskets made out of the same polymer and placed along the surface and perpendicularly to directions of cells in a plate, are kept till full polymerization of the joints with following formation of the package on all its corners with metal angle sections into a rigid metal framework. At that in one of the vertical sides of the angle section they drill some bores ensuring a free running of a liquid. Then using a sliding fit the package is inserted in the guides made out of the angle sections and mounted perpendicularly to the corners of the air-distributive box so, that the bores of the lower corner of the package meet the bores of a lateral wall of a guide. The package is fixed in the guides formed by the metal angle sections. The bores of the lower angle section of a guide should be located opposite to the bores drilled-in in the lower wall of the air channel of the box placed above a draining container. The invention ensures the necessary tightness of the channels linking the heat exchangers, possibility to use the heat exchangers at low temperatures and also to increase the cost efficiency of the polymeric material cutting.
EFFECT: the invention ensures the necessary tightness of the channels linking the heat exchangers, possibility to use the heat exchangers at low temperatures and increased the cost efficiency of the polymeric material cutting.
FIELD: gas turbine construction.
SUBSTANCE: matrix can be used in heat exchangers of heat regeneration heat system's exchanger, as well as for warming up (cooling down) gas or liquid in different heat-sing installations. Matrix of ring-shaped lamellar heat exchanger has heat-exchange members formed by lamellar plates with corrugated parts and openings of collectors, which are connected by means of lugs of internal and external diameters of plates or by means of lugs of collectors. Corrugated parts and collectors are limited by internal and external diameters of ring-shaped plate, or by lines being equidistant to them, and by frontal planes being parallel to axis of symmetry of corrugated parts. Axes of symmetry of any part and of collectors pass through center of plate. Angles between frontal planes of distributing and gathering collectors are equal to each other. Vertexes of angles are disposed at concentric circles having the same or different radiuses. Area of distributing collector relates to gathering collector is directly proportional to relation of corresponding radiuses of vertexes of angles and belongs to 0,4-0,8 interval.
EFFECT: improved efficiency of operation of heat exchanger.
2 cl, 7 dwg
FIELD: mechanical engineering; air conditioning and ventilation.
SUBSTANCE: invention relates to heat exchange devices used in air conditioning and ventilating plants, namely, to methods of evaporating cooling to dew point and to plate devices for evaporative cooling. According to invention, plates of plate device are made so that channels and perforation to pass from dry side to wet side can be at least partially wetted with evaporating liquid. Chute is provided made in part of plates which temporarily holds evaporating liquid in contact with wick material on surface of wet side of plate. Evaporating liquid flows along chute through perforation for liquid into following chute. When chute of plate from wet side is from above, perforation for liquid is on side forming reservoir for wetting opposite wick materials. When flow move along dry side, heat is conveyed to plate. In proposed method several heat transfer plates are used. Said plates have wet and dry sides and they form chutes. Plates are wetted form wet sides with evaporating liquid and they pass separately two flows, namely, working and product ones through dry sides. Flow of working gas passes along dry side and gets through perforation into channels on wet side which is cooled owing to evaporation, thermal conductivity of plate and its heat radiation.
EFFECT: provision of more effective air flow and heat transfer owing to evaporative cooling with intermediate coolant.
SUBSTANCE: invention is referred to thermal engineering and may be used in district heating systems for heating service water. Heat exchanger contains primary circuit channel located between inlet and outlet connections, secondary circuit channel located between supply pipeline assembly and return pipeline assembly, heat-conducting device between primary circuit channel and secondary circuit channel, and temperature sensor. Temperature sensor is located between secondary circuit channels close to connection with return pipeline. Besides, temperature sensor contacts with heat-conducting device or situates at small distance from it.
EFFECT: space saving in heat exchanger when temperature is measured and good results are achieved.
7 cl, 5 dwg
FIELD: heating systems.
SUBSTANCE: inventions are intended for heat exchange, and can be used for heating heat carriers. Heat exchanger core consists of two groups of alternating plates. The latter are connected to each other and each plate in each group is made at least in one of its surfaces at least with three platelets, each of which consists of a group of parallel channels, holes passing through the first and second group of plates for transferring fluid heat carriers to the platelets and from them, and distributing channels connecting opposite ends of each platelet in each of the plates to some of the holes related thereto. Distributing channels that are connected to each of the platelets in the plates of the first group are located so that they cross the distributing channels that are connected to some of the appropriate platelets in the plates of the second group. Heat exchanger can include at least one core. Heat exchanger can include headers connected to the core. Heat exchanger can include at least two cores. In heat exchanger the cores are attached rear side-to-rear side, and headers are connected to assembly for transferring fluid heat carriers to the cores and from them.
EFFECT: providing required thermal efficiency, and decreasing dimensions and mass of heat exchanger.
31 cl, 16 dwg
SUBSTANCE: invention is of relevance for operation of apparatus for air cooling of gas and is to be utilised in power engineering industry. The proposed method of the heat exchanger apparatus fabrication envisages the following activities: fabrication of finned heat exchange tubes, a framework, at least a single apparatus section with lateral walls and beams joining them together, gas inlet and outlet chambers; packing the section with a bundle of finned one-way-flow heat exchange tubes; fabrication of a manifold for gas supply and removal, a support structure and their assembly. The section walls are represented by channel bars with shelves turned towards the tubes and are equipped with fairing displacers forming the U-bar reinforcement ribs. One of the methods of the apparatus heat exchanger section fabrication envisages positioning an optimal number of tubes within the section in accordance with the dependence specified within the framework of the invention concept. An alternative method envisages assembly of the section elements on a holding frame designed within the framework of the invention concept. A third method envisages assembly of the elements in a specific sequence combined with performance of hydraulic pressure testing. The method of fabrication of the apparatus chamber for gas inlet or outlet envisages manufacture of the chamber elements and their assembly in a sequence developed within the framework of the invention concept. The method of fabrication of the gas delivery and removal manifold envisages manufacture of the manifold body sections and their assembly with the help of the tool tab designed within the framework of the invention concept. Method of hydraulic pressure testing of the apparatus sections envisages mounting the section to be tested on the hydraulic test bench designed within the framework of the invention concept with the pressure increase and drop modes as per the dependence given. Method of the manifold hydraulic pressure testing envisages it being mounted on the hydraulic test bench or a loft with the help of support structures designed within the framework of the invention concept.
EFFECT: enhanced effectiveness and precision of assembly of the apparatus and elements thereof combined with reduction of labour and material consumption, reduction of hydraulic losses occurring in the apparatus as well as technological simplification of the hydraulic pressure testing of heat exchanger sections and manifolds of the apparatus for air cooling of gas, improved effectiveness and reduced labour intensity of their performance.
25 cl, 30 dwg
SUBSTANCE: proposed multi use plate of the plate heat exchanger contains the following: the extreme and middle parts, lying in the first plane; the rib, mating these parts, the middle of which lies in the second plane parallel to the first; the first and the second pairs from the first and the second holes same in size on the opposite sides of the middle part. These pairs of holes are positioned mirror-wise relatively to the transverse axis, passing in the first or the second plane equidistantly between the pairs of holes; at that the first and the second hole in each of these pairs of holes are formed in the sections of the middle part, lying respectively in the first and the second planes; the entire space of the middle part between the sections with holes is occupied by alternating recesses and protruberances, at that the recesses bottom and the protuberances tops are lying respectively in the first and the second planes. The package assembly of such plates consists in consequent plates packing one by one with the similar planes with the rotation of each even or each odd plate by 180° relatively to the transverse axis, after that provide the plates welding in the contact places of their similar planes. The turbulizing elements can be placed in some of the forming cells, that allows to change the hydro-gasdynamic and heat-mass exchange characteristics of the working channels.
EFFECT: operating means range expansion.
8 cl, 3 dwg
FIELD: heat exchangers with flat plates, as well as their gaskets.
SUBSTANCE: the gasket designed for use in a heat-exchange device, having heat-exchange plates provided with the first and second sides, edge and a groove located on its first side and passing along the edge at a certain distance from it, includes: the elongated main part placed in the groove and sealing the connections between the mentioned first and second heat-exchange plates when the mentioned second heat-exchange plate is held pressed to the first plate; and at least one part of the plate seizure that includes at least one coupling member coming in engagement with the part of the plate on its first side, the mentioned coupling member is made integral with the mentioned coupling member is made integral with the mentioned main part of the gasket, breaks away from it in the transverse direction, crosses the plate edge and has a free end; and at least one claw connected to the mentioned free end of each mentioned coupling member by means of a hinged joint and made so that it can be bent relative to the mentioned coupling member for giving it such a position in which it engages the second side of a definite part of the plate. Besides, the claw has an initial, non-operating position in which it is inclined at a definite angle relative to the mentioned coupling member, and the mentioned hinged joint acts in such a manner that each mentioned claw can be turned and bent, bringing it from the mentioned non-operating position to a position, in which it gets engaged with the second side of the plate part under the action of the force with which the mentioned claw strives for return to its non-operating position. The invention makes it possible to produce a gasket in a plate heat-exchange device, which has clamping members for application to the heat exchanger plate of a considerable clamping force in the transverse direction so as to provide a reliable retention of the gasket on the plate in the necessary position before compression of the unit.
EFFECT: enhanced reliability.
24 cl, 41 dwg
FIELD: heat-exchange apparatuses for gaseous heat-transfer agents, whose temperature, pressure and flow rate in service may vary within a wide range.
SUBSTANCE: the method consists- in heat transfer by means of fins separating the flow-through cavities of each heat-transfer agent into parallel-connected ducts, and plates separating the adjacent flow-through cavities of different heat-transfer agents; - intensification of heat exchange of the heat-transfer agent with the fins washed by it at flowing agent with the fins washed by it at flowing of heat-transfer agents through the parallel-connected ducts of the respective flow-through cavity due to the flow of the heat-transfer agent through the perforated holes in the fins between the adjacent parallel-connected ducts as a result of fluctuation of static pressure differentials in the ducts, or at a regular destruction of the boundary layer of the heat-transfer agent in the joints of the fin sections located in succession in the direction of flow of the heat-transfer agent; - limitation of flow of the heat-transfer agent between the parallel-connected ducts of the flow-through cavity through the fin perforation holes or in the joints of the non-perforated fin sections located in succession in the direction of flow of the heat-transfer agent, to this end, the flow of the heat-transfer agent in the flow-through cavity is separated into several flows separated from one another. The heat-exchange apparatus includes: - alternating flow-through cavities of cooling and cooled heat-transfer agents formed by the separating plates of heat-conducting material; - flow-through cavities of both heat-transfer agents separated into out-of-round in cross section parallel-connected ducts by the respective fins of heat-conducting material being in a heat contact with the separating plates; - fins in each flow-through cavity, even of one heat-transfer agent, perforated or staggered in the direction of its motion with formation of several successively located sections of parallel-connected ducts so that the fin in the second and the subsequent in the direction of flow of the heat-transfer agent sections is shifted across this direction relative to both fins of the previous section making up the duct just before the shifted fin, the ducts between the fins with the adjacent sections are of a different length; -each of the flow-through cavities of the heat-transfer agent with the sections of the adjacent ducts of a different length separated by impermeable alls into several parallel-connected sections.
EFFECT: reduced weight and cross-section dimensions of the heat-exchange apparatus characterized by a sufficiently high heat transfer within a wide range of temperates, pressures and flow rates of heat-transfer agents.
3 cl, 7 dwg