Curcuit for cooling high-beat areas of structures

FIELD: power industry.

SUBSTANCE: circuit for cooling high-beat areas of structures consists of internal profiled shell, on external surface of which there are made ribs of cooling circuit, and of external profiled shell installed on internal one and bound with it by tops of ribs. Blades parallel to a bottom of a slot are made on tops of the circuit ribs; also external profile of blades corresponds to internal profile of the external shell. Blades tie tops of two adjacent ribs between them to increase strength and stability of shells. Also blades interconnect tops of all ribs forming single circular surface. For improvement of conditions of heat release lengthwise ribs are made on internal fire surface of the internal shell.

EFFECT: increased stability and durability of internal and external shells.

4 cl, 4 dwg

 

The invention relates to the field of engineering, namely the heat-exchange apparatus, and can be used to create a cooled designs with large specific heat fluxes.

At the present time for cooling of the walls of the heat-stressed structures is mainly used for regenerative cooling, comprising applying cooler special grooves made between cooled internal and external power shells fastened together along the tops of the grooves of the cooling channel.

The strength of the cooling channel in this case is determined by the strength of soldered joints between the inner and outer shells due to the fact that the strength of the solder is below the strength of the material of the shells. To increase the strength of the solder joints need to increase the contact area between the contact surfaces. The increase in the thickness of the ribs is impractical due to the fact that this leads to a decrease in the number of edges and increase the pressure drop in the cooling channel.

As a rule, if you increase the pressure inside the cooling channel, the inner shell loses its stability and bubbled, especially in the cylindrical part. To increase the strength of the shells set the roller, which causes deterioration of the overall mass of the structure.

Known cooling channel heat-stressed is onstructi, contains an inner profiled shell on the outer surface of which is made of the ribs of the cooling channel, the outer profiled membrane installed on the internal and bonded with her over the tops of the ribs of the cooling channel (MV Dobrovolsky and other "Liquid-propellant rocket engines. Principles of design", M., "Higher school", 1968, rich, p.166-167 - prototype).

The cooler is supplied to the cooling channel, is moving in the grooves between the ribs and fire cools the surface of the inner shaped shell. By connecting the shells to each other only on the tops of the ribs, while increasing the pressure in the cooling channel is not provided strength and stability of the inner shell, which leads to loss of serviceability of the structure as a whole.

The task of the invention is to remedy these disadvantages and create cooling channel design that allows you to increase the stability and strength of the inner and outer shells.

The solution of the stated problem is achieved by the fact that in the proposed path of the cooling heat-stressed structures containing internal profiled shell on the outer surface of which is made of the ribs of the cooling channel, the outer profiled membrane installed on the internal and bonded with it, for example, by soldering p. the vertices, edges, according to the invention on the tops of the ribs of the cooling channel is made petals, parallel to the bottom of the groove, with the outer profile of the petals corresponds to the inner profile of the outer shell.

To optimize the working conditions of the inner shell petals are designed so that they connect the vertices of two adjacent edges together. This arrangement of petals provides additional contact areas between the inner and outer shells, which reduces the length of the unsupported areas of the tract.

The most optimal conditions for the operation of the path is achieved when the petals connect the vertices of all edges between them to form a unified annular surface, the outer profile which equidistance inner profile of the outer shell in contact with the outer surface of the inner shell.

In this case, the annular surface of the petals form an additional bandages stiffness, which increases the stability of the membrane exposed to the pressure of coolant in the grooves of the cooling channel. In addition, the annular surface formed by the petals, allows to increase the surface area of the solder without increasing the thickness of the ribs and increase the pressure drop in the tract, reduce several times the length of the unsupported part of the river the wall due to the formation of additional supports.

To increase the surface of heat removal at the firing surface of the inner shell can be made of the longitudinal grooves.

The invention is illustrated by drawings, where figure 1 shows a longitudinal axial section of the tract, figure 2 - part of the cooling channel with petals is a perspective view of the variant of the arrangement of petals in different directions, figure 3 - part of the cooling channel with petals is a perspective view of the variant of the arrangement of petals in one direction with the formation of the annular surface 4 is part of a cooling channel with petals is a perspective view of the variant of the arrangement of petals in the same direction.

The cooling channel has an internal profiled shell 1, on the outer surface of which is made of the ribs 2 of the cooling channel 3. On the edges 2 of the cooling channel 3 made petals 4, connecting the tops of the ribs with each other. On the inner profiled outer shell 1 is set to the shaped shell 5 by means of soldering on the tops of the ribs 2 and the diaphragm 4. On the inner surface of the shell 1 is made of longitudinal ribs 6.

The proposed device operates as follows.

The cooler is supplied to the cooling channel 3, moves along the grooves between the ribs 2 and cools the hot surface of the inner profiled shell 1. By connecting the shells among themselves not only on ver the Inam ribs 2, but, petals 4, increases the stability and strength of the inner shell 1. Increased stability and strength of the inner shell 1 can increase the pressure in the cooling channel of the product inside the product that ultimately improves the efficiency of the workflow.

To increase the surface of heat removal at the firing surface of the inner shell 1 is made of longitudinal ribs 6.

The use of the proposed technical solutions will improve the stability of the inner shell and to increase the strength of the product as a whole.

1. The cooling channel heat-stressed structures containing internal profiled shell on the outer surface of which is made of the ribs of the cooling channel, the outer profiled membrane installed on the internal and bonded with her over the tops of the ribs, characterized in that the tops of the ribs of the cooling channel is made petals, parallel to the bottom of the groove, with the outer profile of the petals corresponds to the inner profile of the outer shell.

2. The cooling channel heat-stressed structures according to claim 1, characterized in that the petals connect the vertices of two adjacent edges between them.

3. The cooling channel heat-stressed structures according to claim 1, characterized in that the petals connect the vertices of all edges between them to form a unified annular surface.

4. The cooling channel heat-stressed structures according to claim 1, characterized in that on the inner firing surface of the inner shell is made of longitudinal ribs.



 

Same patents:

FIELD: power industry.

SUBSTANCE: circuit for cooling high-beat areas of structures consists of internal profiled shell, on external surface of which there are made ribs of cooling circuit, and of external profiled shell installed on internal one and bound with it by tops of ribs of cooling circuit. Hollow bridges interconnecting tops of ribs are made between ribs of the cooling circuit. Also bridges interconnect tops of all ribs forming single circular surface to increase stability of shells. For improvement of conditions of heat release lengthwise ribs are made on internal fire surface of the internal shell.

EFFECT: increased stability and durability of internal and external shells.

3 cl, 2 dwg

FIELD: heat power engineering, machine engineering, possibly manufacture of members of heat exchanges or reinforcing members.

SUBSTANCE: ribbed sheet panel includes base made of metallic sheet and having outer ribs welded to base by action of HF-currents. Base has protrusions on its rear side. Relation of protrusion height to thickness of base is in range 0.8 - 2.0. In order to make such panel, cylindrical blank of metallic sheet being base of panel is shaped to helix. Ribs are welded by means of HF- currents to outer side of base along helix. Then ribbed panel is developed till predetermined curvature radius. On rear side of panel base protrusions are made by pressing-in ribs at process of their welding to outer side of base and(or) by forming.

EFFECT: enhanced operational characteristics of panels.

8 cl, 2 ex

FIELD: applicable in devices for conduction of heat exchanging processes between two media through a wall, in particular, in chemical, food, petroleum refining branches of industry.

SUBSTANCE: the heat exchanger plate bunch has a heat exchanger bank assembled of plane-parallel plates with bundles welded in pairs in boxes fixed at the ends in tube plates with a clearance to one another and forming tubular and intertubular ducts for input and output of the hot and cold products, two plane-parallel plates with partitions for overlapping the free area of the cross-section between the plate and the body of the heat exchanger, seal belt and a detachable mounting-transport support, the heat exchanger bank is made of several successively connected modules, each provided with two side shields made in the form of plates located along the bank, except its terminal zone, and secured on the plane-parallel plates, tube and intertube headers are formed in the zones of connection of the modules. Besides, in the bunch of the plate heat exchanger the tube header is made in the form of closed plane in the central part of the bank of the adjacent modules, and the intertube header is made with two channels, one channel on each lateral side of the bank, each channel is formed by an additional shield that is mounted in the terminal zone between the shields of the adjacent modules and connected to these shields and to the plane-parallel plates. The section of each channel of the intertube header is made in the form of a segment restricted from one side by the arc of the additional shield, whose radius equals half the diagonal of the bunch section, and from the other side - by a chord, whose length equal the width of the shield plate. The seal belt is made in the form of a cylinder-shaped obturator and installed in the zone of product output from the intertube channels.

EFFECT: simplified procedure of manufacture, transportation and mounting of the bunch in the body of the heat exchanger, improved conditions of heat exchanger sealing at passage of the heat exchange products through it, reduced expenditures on manufacture.

8 dwg, 4 cl

The invention relates to heat engineering and can be used in all areas of technology for heating or cooling liquid or gaseous media, including air preheating gas turbine exhaust heat

The invention relates to heat engineering and can be used in regenerative air heaters

The invention relates to a device for carrying out heat exchange processes between the two environments through the wall and can be used in chemical, food and petroleum industries

The invention relates to the field of engineering, specifically for power plants, used for heating of premises, buildings, constructions, and also in various industrial installations

The invention relates to the field of power engineering, in particular to plate heat exchangers, and can be used to heat water in heating systems and hot water, and heating systems, boilers and other combustion installations due to the heat of hot fluid (hot water heat networks, CHP, individual boilers, etc.,)

The invention relates to intensive methods of heat transfer from hot fluid to cold and can be used in heat exchangers and energy, metallurgical and other industries, including systems waste heat recovery process plants

FIELD: power industry.

SUBSTANCE: circuit for cooling high-beat areas of structures consists of internal profiled shell, on external surface of which there are made ribs of cooling circuit, and of external profiled shell installed on internal one and bound with it by tops of ribs of cooling circuit. Hollow bridges interconnecting tops of ribs are made between ribs of the cooling circuit. Also bridges interconnect tops of all ribs forming single circular surface to increase stability of shells. For improvement of conditions of heat release lengthwise ribs are made on internal fire surface of the internal shell.

EFFECT: increased stability and durability of internal and external shells.

3 cl, 2 dwg

FIELD: technological processes.

SUBSTANCE: invention is related to method to increase temperature of substance contained in container in partially hardened condition, at that at least one heat exchanger is installed in container. It is achieved by installation of pumping device for substance mixing, heat exchange between heat exchanger and substance, substance displacement by pumping device to improve heat exchange between heat exchanger and substance, and also by mixing of substance with the help of pumping device during substance displacement inside container. When substance is displaced, then not only stagnated substance is in contact with heat exchanger for heat exchange. Amount of substance in contact with heat exchanger, therefore, considerably rises, and heat transfer depends less on substance heat conductivity.

EFFECT: invention objective is to obtain possibility of relative fast variation of substance temperature.

23 cl, 12 dwg

FIELD: heating.

SUBSTANCE: invention relates to heat engineering. The proposed device allows heat exchange between fluid medium and gas and comprises the casing, at least, one flat screen carcass made up of several heat-conducting-material capillaries arranged in parallel and equidistant relative to each other, and several heat-conducting-material wires connected to aforesaid capillaries to transfer heat via metal contacting, and pass at equal distance and crosswire relative to capillaries. The distance between wires approximates to that of their diametre. Gas flows along the wires to transfer heat to fluid medium that flows in capillaries, through capillary walls and via wires. The heat exchanger design allows the gas flowing along each screen carcass, lengthwise relative to the wires, and prevents flowing of a notable amount of gas through screen carcasses. The hothouse comprises soil surface with plants arranged thereon or in bearing pots, cultivation chute and, at least one heat exchanger. Note here that one gas inlet or outlet holes is located above leaf surface, while the other one is located below the said level, or both holes are located within the limits of the said surface. At least one heat exchanger purifies air. Several heat exchangers make the central heating system. Thermal pump system incorporates the heat exchanger.

EFFECT: higher efficiency and simplified servicing.

28 cl, 11 dwg

FIELD: the invention is designed for application in energy engineering and namely may be used at manufacturing of gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of gas air cooling apparatus envisages manufacturing of heat exchanging finned tubes, manufacturing of a frame, at least one heat exchanging section with lateral walls and interconnecting beams, manufacturing of chambers of input and output of gas, packing the bundle of heat exchanging tubes, manufacturing of collectors of input and output of gas, a supporting construction for the apparatus with supports for the engines of the ventilators and assembling of the elements of the apparatus. At that each lateral wall of the heat exchanging section is fulfilled in the shape of a channel with shelves inverted to the heat exchanging tubes and located on the interior surface of the channel's wall longitudinally oriented by dispersers-cowls of the flow of cooling environment forming the channel's ribs of rigidity which are installed in accord with the height of the channel's wall with a pitch in the axles corresponding to the double pitch between the rows of the tubes in the bundle. At that at least part of the volume of each marginal tube in the row and/or its finning is placed at least in a row under the overhang of the channel's shelf corresponding to the lateral wall of the heat exchanging section of the apparatus. At that the support for the engine of each ventilator consisting out of a central supporting element and tension bars is fulfilled suspended connecting it with corresponding bundles of the supporting construction of the gas air cooling apparatus.

EFFECT: allows to increase manufacturability of assembling the apparatus and its elements at simultaneous decreasing of labor and consumption of materials and increasing thermal technical efficiency of the heat exchanging sections and reliability of the apparatus in the whole due to manufacturing walls of heat exchanging sections allowing to use to optimum the heat exchanging volume of the section and to optimize the feeding of the exterior cooling environment to the tubes at the expense of reducing energy waists for feeding the exterior cooling environment with excluding the necessity in reverse cross-flows in the wall zones of the chambers and combining of functions of the chambers' elements providing the indicated thermal technical effect and simultaneously increasing rigidity of the frame of the heat exchanging sections.

13 dwg, 23 cl

FIELD: the invention is designed for application in energy engineering and namely may be used at manufacturing of heat exchanging apparatus particularly at manufacturing of gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of a gas air cooling apparatus envisages manufacturing and mounting of heat exchanging sections with chambers of input and output of gas and with a bundle of heat exchanging finned tubes, collectors of input and output of gas and supporting construction of the apparatus with supports for the engines of the ventilators. At that the support for the engine of each ventilator is made suspended consisting of a central supporting element and tension bars connecting it with corresponding bundles of the supporting construction of the gas air cooling apparatus. At that the central supporting element is fulfilled in the shape of a many-sided socket with a supporting site with a central transparent opening for the engine of the ventilator and connected with it and between themselves the supporting and connecting plates forming lateral edges of the socket interchanging along its perimeter supporting and connecting plates. The supporting plates are fulfilled with configuration corresponding to the configuration of supporting sites of tension bars of end plots predominantly rectangular inverted to them, the supporting plates are located with possibility to contact along its surface with the surface of the supporting site of the end plot of corresponding tension bar. The connecting plates are fulfilled in the shape of pairs of identical trapezes inverted with their smaller foundations to the supporting site for the engine of the ventilator. At that the trapeze of each pair is located diametrically opposite to each other and the central supporting element is fulfilled preferably on the slip.

EFFECT: allows to increase manufacturability of the gas air cooling apparatus, to simplify the assembling of its elements at simultaneous decreasing of men-hours and material consumption and increase reliability and longevity of the manufactured construction due to simplification of manufacturing of supports for the engines of the ventilators and the supporting construction of the apparatus as a whole and using for manufacturing of the elements of the apparatus of the technological rigging developed in the invention that allows to increase accuracy of assembling and to reduce labor-intensiveness.

15 cl, 13 dwg

FIELD: the invention is designed for application in energy engineering namely it may be used at manufacturing of heat exchanging apparatus particularly for manufacturing of heat exchanging sections of gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of a heat exchanging section of a gas air cooling apparatus envisages manufacturing and assembling of a frame of a heat exchanging section, a chamber of input and a chamber of output of cooling gas with upper, lower walls, lateral walls forming correspondingly tube and exterior plates with openings, gables and at least one power bulkhead, assembling the walls of the heat exchanging section with wall dispersers-cowls of the flow of the exterior cooling environment predominantly of air, packing the heat exchanging section with a bundle of heat exchanging finned, single passing tubes with their installation in the heat exchanging section in rows along the height with dividing the rows with elements on different distances and fixing the ends of the tubes in the openings of the tube plates. At that the number n on a meter of the width of the transversal section of the bundle of the heat exchanging tubes is taken out of condition where FT - arelative total square of the heat exchanging surface of the bundle of finned tubes falling on 1 m2 of the square of the transversal section of the flow of the heat exchanging environment predominately of air taken in the diapason 72,4<FT < 275,8, a stretched magnitude; D1- a diameter of a heat exchanging tube with finning, m; D2 -a diameter of the same heat exchanging tube without finning, m; Δ -the thickness of the fin of the finning or an average thickness of a fin, m; Β - a pitch of the fin of the tube, m.

EFFECT: allows to decrease labor-intensiveness of manufacturing and assembling of a heat exchanging section of the gas air cooling apparatus at simultaneous increasing of heat exchanging effectiveness and manufacturability due to optimization of the quantity of heat exchanging tubes in a bundle and as a result of mass of elements of the chamber of input and of the chamber of output of gas namely tube and exterior plates, optimal number of openings in which their mass is decreased at simultaneous security of demanded solidity and longevity of separate elements of a heat exchanging section and as a result of the whole gas air cooling apparatus.

5 cl, 7 dwg

FIELD: the invention is designed for application in energy engineering and namely is used for manufacturing of heat exchanging equipment particular for gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of a tube chamber of the gas air cooling apparatus or a section of the gas air cooling apparatus fabrication of half-finished articles out of metallic sheet for lateral, upper, lower and butt-ends walls and for no less than two power bulkheads of the tube chamber with openings for passing of a gas flow. At that the length of the half-finished articles for lateral walls are fulfilled correspondingly the width of the apparatus or of the section of the apparatus. All half-finished articles are fabricated for the lateral walls with fulfilling chamfers for welding. At that at least the chamfers on the half-finished articles for the lateral walls forming the tube and the exterior plates of the chamber and also the chambers on upper and lower walls are fulfilled of broken configuration in the transversal section with forming support regions and edges of a welding mouth with a technological angle of opening-out 41-53°. After fabrication of half-finished articles an in series assembling and connection on welding of lateral walls with power bulkheads are executed and trough them a united rigid construction to which the upper and the lower walls are connected is formed. After that in one of the lateral wall forming a tube plate openings for the ends of the heat exchanging tubes openings are made and in the other lateral wall forming an exterior plate threading openings coaxial with the openings in the tube plate are fulfilled for providing possibilities of introduction of technological instruments for fixing the ends of the tubes in the tube plate and the subsequent installation of caps predominantly along the thread in the openings of the exterior plate and in the upper and/or in the upper walls openings for sleeves predominantly with flanges for connection with a collector of feeding or for offsetting of gas are fulfilled. At that the power bulkheads are installed in a high range making up ±1/4 of the high of the chamber counting from medium horizontal flatness along the height of the chamber, and the gables of the chamber are mounted after installation and fixing of the ends of the heat exchanging tubes of the chamber.

The tube chamber of the gas air cooling apparatus or the section of the gas air cooling apparatus, the gas input chamber of the gas air cooling apparatus or the section of the gas air cooling apparatus and the gas output chamber of the gas air cooling apparatus or of the section of the gas air cooling apparatus are manufactured in accord with the above indicated mode.

EFFECT: allows to decrease the labor-intensiveness of the mode, increase manufacturability of the measuring chambers and improve their strength characteristics and thermal efficiency.

15 cl, 8 dwg

FIELD: the invention is designed for application in energy engineering namely in the technology of manufacturing and construction of heat exchanging sections of a gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of a heat exchanging section of a gas air cooling apparatus includes manufacturing predominantly on a loft of the lateral walls of the frame of the

section with wall displacers-cowls of air environment, assembling on a slip with support poles of the elements of the frame of the section - lateral walls, lower transversal beams and gas input-output chambers forming gables of the frame and also of frame rigidity elements with the following packing of the multi-row bundle with single-passing finned heat exchanging tubes with forming with them and the gas input-output chambers of a vessel working under pressure, installation of upper transversal beams and carrying out hydraulic tests of the assembled section. At that the terminal poles of the slip are executed with locating their leaning sites at different levels with height difference making ( 1,1-4,6)d, where d - an interior diameter of a tube of the bundle and at assembling the frame the gas input-output chambers are installed on the final poles of the slip.

The heat exchanging section of the gas air cooling apparatus is fabricated in accord with above indicated mode. The mode of manufacturing of the heat exchanging section of the gas air cooling apparatus includes manufacturing on the loft of the lateral walls of the frame of the section with wall dispersers-cowls of air environment, and also elements of rigidity of the frame, assembling on the loft with support poles of the elements of the frame - lateral walls , lower transversal beams and forming gables of the walls of the frame of the chambers of input-output of the gas and also of the elements of rigidity of the frame with following packing of the multi-row bundle out of single-passing finned heat exchanging tubes forming with their help and the gas input-output chambers of a vessel working under pressure, installation of upper transversal beams and carrying out of hydraulic tests of the assembled section. At that the low and the upper transversal beams of the frame of the section are installed along the length of the lateral walls with spacing overall of height marks, equal (0,12-),51)d, where d - an interior diameter of the tube of the bundle and cuts of different height predominantly for dimensions of the transversal section of the chambers are made for installation of gas input-output chambers on the final plots of the lateral walls in the upper belt and the overall part of the height of the walls. The heat exchanging section of the gas air cooling apparatus is characterized with the fact that it is manufactured in accord with this mode.

EFFECT: allows to increase manufacturability of fabricating of the heat exchanging sections at simultaneous lowering of metal consuming of construction, simplification of the process of fabricating and lowering labor-intensiveness.

13 cl, 10 dwg .

FIELD: the invention is designed for application in the field of heat exchange-and-power engineering namely in heat exchanging apparatus of the type of a gas air cooling apparatus.

SUBSTANCE: the heat exchanging apparatus of the type of a gas air cooling apparatus has an arrangement for drawing off and feeding into the zone of the bundle of heat exchanging tubes of exterior heat exchanging environment fulfilled in the shape of a vessel open from the side of the gables. The vessel is formed in the zone of location of the heat exchanging tubes with the help of lateral and gables walls of the heat exchanging section of the apparatus and a multi-row bundle of heat exchanging tubes. At the input it is fulfilled with multi-mouth section formed by the mouths of the casings of ventilators for feeding the cooling environment . Each of them has a baffle with a round transversal section in the zone of locating the ventilator and a multi angular predominantly rectangular transversal section in the zone adjoining to the heat exchanging section c with at least two opposite edges adjoining to the corresponding contact plots of the lateral walls of the heat exchanging section. AT that the lateral walls from the interior side of the vessel are provided with longitudinal cowl-displacers in the shape of the elements forming in the vessel extensive projections at least on the most part of the length of the interior wall of the vessel and the gables of the vessel are formed with the help of the tube plates of the gas input-output chambers of the heat exchanging section at least at the part of their height making up 0,5-0,85 of the height of the lateral walls. The tube plates are installed as piers of different height in the final ends of the plots of the lateral walls of the vessel. AT that the correlation of the total square of the multi mouth section at the input of the vessel formed with the help of mouths of the casings of the ventilators in the vessel to the square of the section of the vessel at its output makes according to overall dimensions of the vessel ∑Flow:FUPPER=0,42-0,9 and in the flatness of aerodynamic shading formed by the upper row of the bundle of the heat exchanging tubes the mentioned correlation makes 0,51±11,5% where ∑low- total square of the multi mouth input section of the vessel, m2; F upper - the dimension square of the working section of the vessel in its upper part without taking into consideration the aerodynamics shading developed by the heat exchanging tubes of the bundle,m2.

EFFECT: allows to increase efficiency of a gas air cooling apparatus due to constructive decisions of the walls of a vessel securing better aerodynamics of passing of the cooling environment including wall zones of the vessel and also in high adaptability of the system of the vessel to seasonal changes in exterior environment and mass of the cooling gas passing through the heat exchanging tubes of the bundle of the vessel at the expense of optimization of correlation of parameters of passing sections of the vessel and of the whole apparatus.

4 cl, 3 dwg

FIELD: the invention is designed for application in heat exchanging apparatus namely in heat exchanging sections and may be used in air cooling apparatus.

SUBSTANCE: the heat exchanging section of a gas air cooling apparatus has a frame consisting of lateral walls provided with wall displacers of the flow of exterior cooling environment predominantly air, upper and low beams and also chambers with tube plates for inputting and outputting of the cooling gas. In the tube plates the ends of finned heat exchanging tubes are choked up. These tubes develop a multi-row, single passing bundle. AT that each chamber of input and output of gas is located correspondingly on the input and the output of the heat exchanging tubes and together with them a vessel working under pressure. At that the chamber of input or output of gas is formed by corresponding tube plate and the parallel exterior plate which has transparent openings provided with removable corks. These openings are coaxial with the openings in the tube plate and the openings in the tube plates are located in rows at the height of the section with an axial pitch making up (0,95-1,35)-d and with axial pitch in the rows adjacent according the height making (0,91-1,21)-d where d - an exterior diameter of the finning of the heat exchanging tube. At that the openings in each row are displaced on 0,4-0,6 of the pitch from the axles of the openings in the row relatively to the adjacent rows according to the height. The number of the heat exchanging tubes in the direction of the vector of the flow of the exterior cooling environment predominantly air makes from 4 to 14 and in the row the number of the heat exchanging tubes edgewise of the section exceeds in 4-9 times the number of the heat exchanging tubes located in series along the way of the mentioned flow of exterior cooling environment predominantly air.

EFFECT: allows to increase efficiency of heat exchanging at minimum metal consuming in the construction due to optimization of the parameters of heat exchanging elements.

19 cl, 6 dwg

FIELD: the invention is designed for application in heat-and-power engineering particular in convection heating surfaces namely in the bundle of finned heat exchanging tubes and may be used in a gas air cooling apparatus.

SUBSTANCE: the bundle of finned heat exchanging tubes for a gas air cooling apparatus has tubes located in rows placed one over another with displacement of the tubes in each row relatively to the tubes in the rows adjacent throughout the height of the bundle. The rows of the tubes are separated one from another by distancing elements in the shape of plates with prominent and concave plots placed interchangeably forming supporting sites for the rows of tubes adjacent throughout the height of the bundle. At that the tubes are predominately fulfilled as single-pass ones with finning. They form in the limits of each row in projection on conditional flatness normal to the vector of the flow of an exterior heat exchanging environment inputting to the tubes predominantly cooling air flow. The flow passes through the central longitudinal axle of the tubes of each row of the plots of complete aerodynamics opaque corresponding to projections on the indicated flatness of the tubes without taking into account the finning, the plots of complete aerodynamics transparency corresponding to the projections on the indicated gaps between the edges of the fins directed to each other and adjacent to the row of the pipes and the plots of incomplete aerodynamics transparency. Each plot is limited from one side with conditional direct line passing over the tops of the fins and the other side - with the contour of the body of the tube along the base of the fins. At this the specific correlation of the mentioned conditional flatness of the unit of the area to the mentioned conditional flatness of the summary of the square projections of the indicated areas with various aerodynamics transparency in each row composes correspondingly (0,85-1,15): (1,82-2,17): (1,80-2,190).

EFFECT: allows to increase thermal effectiveness due to optimization of parameters of the heat exchanging elements.

4 dwg, 19 cl

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