Noiseless heat-pipe cooling system

FIELD: heating.

SUBSTANCE: noiseless heat-pipe cooling system includes a heat source, a closed flat heat-pipe evaporator and a condenser, which are equipped with steam and liquids branch pipes connected to each other via a steam line and a condensate line. Inner surface of the bottom of the evaporator is covered with a wick. Outer surface of the evaporator housing opposite a heat source is covered with zigzag-shaped ribs, and inner surface is covered with a grid from porous material. The grid is connected at its ends to a wick-header adjacent to the inner surface of its side end faces and lower end face, which is connected through a condensate inlet branch pipe to a transport wick arranged in a condensate line. A capillary heat-pipe condenser-cooler represents a flat rectangular housing with longitudinal vertical through air slots, which is equipped with condensate inlet and outlet branch pipes arranged in its opposite end faces. The condenser is separated on inner side with a vertical partition wall with vertical slots, which is adjacent to end partition walls of air slots into a steam header and a working chamber. Inner surface of lower wall of the housing of the heat-pipe condenser-cooler is coated with a wick layer on which in the working chamber in cavities between side vertical walls of two adjacent air slots there arranged are condensation and cooling sections. Each of the sections consists of two vertical partition walls, between which a vertical distributing steam channel is arranged, which is interconnected with the steam header through a vertical slot. Vertical chambers of residual condensation are located between side vertical walls of two adjacent air slots and two above said vertical partition walls. Each vertical partition wall consists of several vertical perforated plates arranged with a gap relative to each other and covered with a layer of hydrophilic material or made from it, the holes in which are made in the form of horizontal conical capillaries. Capillaries are located so that small holes of conical capillaries of the previous plate are located opposite large holes of conical capillaries of the next plate. Plates of vertical partition walls with large holes of conical capillaries face the cavity of each steam chamber, and plates of vertical partition walls with small holes of conical capillaries face the cavity of each chamber of residual condensation. Inner surface of side vertical walls of vertical chambers of residual condensation is covered with a grid from porous material. All gaskets from porous hydrophilic material and grids from porous material are connected to a wick layer that in its turn is connected through the condensate outlet branch pipe to the transport wick of the condensate line.

EFFECT: invention allows improving reliability and efficiency of a noiseless heat-pipe cooling system.

10 dwg

 

The present invention relates to heat engineering, namely, heat-exchange equipment and can be used for cooling various heat-generating devices by evaporation of the working fluid and condensing the obtained pair without using an external refrigerant.

Known cooling device containing a closed circulation circuit with the evaporator, in which is placed the cooled object, made in the form of a coil with a cooled liquid, and a condenser connected respectively with the steam and condensate line [A.S. USSR №941834, IPC F28D 15/00, 1982].

A disadvantage of the known cooling device is performing the evaporator and condenser in the form of a shell and tube heat exchangers, which limits their specific thermal efficiency.

Closer of the present invention is an annular heat pipe with flat evaporator that contains a wick in the inner chamber, including evaporative section, consisting of a heat source and a closed container (body)in which the inner surface of the bottom is covered with a capillary structure (wick) and a condensing section, which is equipped with steam and a liquid pipe connected between a transport section, consisting of hollow tubes of the steam lines and condensate lines [US Patent No. 8016024 B2, C1 F28D 15/00, 2011].

The main disadvantages of the known devices are limited exterior heat exchange surface of the evaporator housing, the complex structure of its inner chamber and the evaporating surface, which increases the hydraulic resistance, reducing the efficiency of heat exchange with the heat source, the need of the condenser located above the location of the evaporator, to provide gravity movement of the working fluid in the evaporator and the need for condensing the obtained vapor of the working fluid in the condensing section of a significant amount of the cooling agent, which requires a cooling mechanism for feeding and movement, for example, a fan for supplying external air, is the cause of constant noise and reduces the environmental and economic efficiency of the device.

The technical result for the solution of which the present invention is directed, is to simplify the design, improving the reliability and efficiency of silent calatroni cooling system.

The technical result is achieved in silent calatroni cooling system that includes a heat source placed against his deplorably evaporator, capillary deplorably condenser-cooler connected paro is the wires, representing hollow piping and condensate lines, representing a pipeline filled with a porous material (the wick), and deplorably the evaporator includes a flat rectangular casing provided in its upper and lower ends, the pipes entrance condensate and steam escapes, the outer surface of the side faces of which, opposite the heat source is covered with zigzag edges and an inner surface coated with a grid of porous material connected with their ends with a wick-collector adjacent to the inner surface of its lateral and lower ends, through which the inlet nozzle of the condensate is connected with the transport wick placed in the condenser and the capillary deplorably capacitor-the cooler is a flat rectangular housing with a longitudinal vertical through air slits, equipped, located in its opposite ends, nozzles steam inlet and condensate outlet, divided in the vertical wall with vertical slots adjacent to the end walls of the air gaps, the steam manifold and the working chamber, the inner surface of the bottom wall of the casing teletrabajo condenser-cooler is covered with a layer of wick, which in the working chamber in the cavities between the side vertical wall and two adjacent air gaps placed sections of condensation and cooling, each of which consists of two vertical partitions, between which is arranged a vertical steam distribution channel which is connected with a steam header through a vertical slit, and between the side vertical walls of two adjacent air gaps and the aforementioned two vertical walls are vertical chambers residual condensation, each vertical partition represents several vertical perforated plates placed with a gap between them, covered with a layer of hydrophilic material or made of it, the holes which are made in the form of a horizontal tapered capillaries arranged so that the small holes are tapered capillaries previous plates are placed against the large holes with tapered capillaries subsequent plate, in the cavity of each steam chamber plate vertical partitions facing large holes tapered capillaries and into the cavity of each chamber residual condensation, on the contrary, plate vertical partitions facing small holes tapered capillary, the inner surface of the vertical side walls of the vertical chambers full of condensation covered with a lattice of porous material, each strip of porous hydrophilic material and resh the weave of porous material connected with a layer of fuse, which, in turn, through the outlet condensate outlet connected with the transport wick of a condensate line.

Figure 1-10 presents the proposed quiet teplotvornaja cooling system (BSTA) (figure 1 - schematic diagram BSTSA, figure 2, 3 - deplorably evaporator, figure 4-10 - General view, sections and units of the capillary teletrabajo capacitor).

Silent teplotvornaja cooling system (BSTA) consists of teletronix evaporators And installed near heat sources (figure 1-10 not shown), and capillary teletrabajo capacitor, connected by a steam line P, is a hollow piping and condensate lines W, representing a pipeline filled with a porous material transport wick TF. Each deplorably the evaporator And includes a flat rectangular casing 1i, equipped, located in its upper and lower ends, the pipes entrance condensate 2i and output pair 3, the outer surface of the side faces of which are parallel to the heat source (figure 1-10 not shown) covered with zigzag edges 4I and the inner surface is covered with a grid of porous material 5, which is connected with their ends on the side and bottom with a wick-collector 6I adjacent to the inner surface of the side and lower ends, through which the pipe at the ode condensate 2i is connected with the transport wick TF, placed in the condensate line railroad Capillary deplorably capacitor To a flat, rectangular case with 1K longitudinal vertical through air slits 2K, equipped, located in its opposite ends, nozzles steam inlet 3K and condensate output 4K, divided in the vertical partition 5K with vertical slits 6K adjacent to the ends of the air gaps 2K on steam collector 7K and work unit 8K. The inner surface of the bottom wall of the casing 1 is covered with a layer of porous material forming the wick-collector 9K, which in the working unit 8K in the cavities between the side vertical walls of two adjacent air gaps 2K posted condensing section 10K, each of which consists of two condensing elements 11K, which is a vertical partitions, between which is arranged a vertical steam distribution channel 12K which is connected with a steam collector 7K through the vertical slit 6K, and between the side vertical walls of two adjacent air gaps 2K and above the two condensing elements 11K are vertical chambers residual condensation C, with each the condensing element 11K is a few vertical perforated plates 14k placed with gaps between them, to the e placed strip of porous hydrophilic material 15K, which also covered the surface at a vertical perforated plates 14k adjacent to the vertical chambers residual condensation C, holes in the vertical perforated plates 14k made in the form of horizontal tapered capillaries 16K and placed so that the small holes are tapered capillaries 16K previous plate 14k placed against the large holes with tapered capillaries 16K subsequent plate 14k, while in the cavity of each vertical steam distribution channel 12K plate 14k condensing elements 11K facing large holes tapered capillaries 16K, and into the cavity of each chamber residual condensation C, on the contrary, plates 14k condensing elements 11K facing small holes tapered capillaries 16K inner surface of the side vertical walls of the vertical chambers full of condensation C covered with a lattice of porous material 17K, and all gaskets porous hydrophilic material 15K and the lattice of the porous material 17K connected with a layer of wick 9K, which, in turn, through the outlet nozzle condensate 4K is connected with the transport wick TF condensate line J.

The basis of the proposed BSCCO based on characteristics of the fluid (steam) in a conical capillaries, namely: the movement for the implementation of which is from a larger cross-section to a smaller, in the wide part of the capillary evaporation of a liquid in a narrow part of the capillary - condensation of the steam, the property of a liquid to create in the capillaries of the capillary pressure, which enables the transport of liquid wick from the zone of high pressure in the area of low pressure and high efficiency of heat transfer in heat pipes, covered inside the wick [A.V. Lykov heat and mass transfer: (Handbook). 2nd ed., Rev. and supplementary): Energy, 1978, s, 366; A.S. USSR No. 1537979, Ál. F25B 1/06, 1990; V.V. Kharitonov and other Secondary heat flow meters and environmental protection. - Minsk: Enter. school, 1988, p.146; Heat pipes and heat exchangers: from science to practice. Collection of scientific. Tr. - M.: 1990, p.106].

BSTA works in the following way (as an example, the cooling object passed to the computer). Pre-radiators And install from sources of intense heat (Central and graphics processors, video cards etc), capillary deplorably capacitor is inserted into the top cover of the computer (figure 1-10 not shown), the nozzles after which the steam inlet nozzles 3K and condensate output 4K, steam inlet 3K and condensate output 4K radiator and connect the steam and the condensate W, made of flexible tubes. Next, the system is filled with fluid (working fluid)whose type is chosen depending on the intensity of heat in the computer, the average temperature of the outer environment and the allowable temperature of the computer's hardware. When this circuit BSTA is filled so that the working fluid filled pores of a porous material gratings 5 and wicks the reservoir 6I radiators And wicks-collectors 9K, porous material strips 15K, grids 17K capillary teletrabajo capacitor and transport To wick TF. BSTA starts up automatically after the start of operation of the computer, as soon as released heat Q from heat sources. Heat is perceived by convection of the outer surface of the side edges with zigzag edges 4I, which increases the heat exchange surface teletrabajo evaporator And heats its side walls, the inner surface of which is covered with a grid of porous material 5I. As heat-side surface of the evaporator And the heat Q the working fluid in the pore lattice 5I, is heated and enters the cells between the strips of porous material, where its evaporation (strip of porous material lattice 5I prevent the formation of steam film on the inner surface of the evaporator And thus intensify the evaporation process), steam, creating pressure P1magnitude of which is determined by t is you working fluid and the heat emission intensity. The resulting steam through the outlet nozzle pair 3i is removed from the evaporator And the steam pipe P through the pipe 3K gets into the steam manifold 7K capillary teletrabajo condenser, from which through the vertical slit 6K and vertical steam distribution channels 12K flows into the condensing section 10K of the working unit 8K. From the vertical distribution of the steam channels 12K steam enters through large hole tapered capillaries 16K first plates 14k condensing elements 11K sections condensation 10K, which under the action of capillary forces moved to their small holes where its partial condensation heat of condensation of Qr1. The meniscus formed by the liquid in the capillary 16K in contact with the hydrophilic porous material strip 15K, distributed according to his then due to capillary forces, whence fall into the large openings of the capillaries 16K following plates 14k, which also comes neskondensirovannyh pairs from the previous plates 14k. In large openings tapered capillaries 16K is a partial evaporation of the resulting liquid in a conical capillary 16K previous plates 14k, which uses the heat of condensation of Qr1previous plate 14k and heat of the steam, vapor-liquid mixture under the action of capillary forces premise the Xia to the small holes tapered capillaries 16K, where there is a partial condensation of a smaller quantity of steam emitting already a smaller amount of heat Qr2. The resulting liquid, as in the first plate 16K is distributed in the pores of the strip of hydrophilic material 15K the following plates 14k, mixed with nscontainerframe steam coming from the tapered capillaries 16K previous plates 14k and the process is repeated as described above in all subsequent plates 14k. Thus, by moving the liquid-vapor mixture in the condensation element 11 from one plate 14k to another, its moisture content increases due to the ablation of part of the condensate from the steam, and the other part of the resulting condensate remains in the porous material strips 15K. Neskondensirovannyh pairs of tapered capillaries last 16K plate 14k condensing element 11K falls into the vertical chamber residual condensation C, which is the final condensation of vapor on the inner surface of the side vertical walls of the air gaps 2K due to its cooling through the wall of the flow of air passing through the slit 2K, and the absorption of the obtained condensate porous material lattice 17K. The resulting condensate from strips 15K and lattices 17K under the action of capillary forces enters the wick-collector 9K, whence it is removed from condense the ora through To a 4K pipe for condensate line W, filled transport wick TF, and through pipe 3i enters the wick-collector 6I evaporator And in which the above-described process of receiving heat from the source of heat.

A hub device that provides effective work BESTSO is capillary deplorably capacitor since the Number of plates 14k in one condensation element 11K take in order to provide condensation the most part, the pair received in the tapered capillaries 16K first on his turn plates 14k. The width of the gap between the plates 14k and gasket material 15K depend on the properties of the working fluid and is determined empirically.

The amount of condensate to be transported from the ferry on the tapered capillaries 16K plates 14k in sections condensation 10K capillary teletrabajo of the capacitor To increase as you move from one plate 14k to another, and the amount of steam, respectively, decreases. Similarly, the amount of heat of condensation of Qrialso decreases as the displacement of the liquid-vapor mixture from one plate 14k to another, as energy most of this heat is spent for the distribution of fluids in the pores of the hydrophilic strip 15K, plates 14k, similar to the formation of its free surface, capillary forces, mutual phase transformation and overcoming friction when moving the AI vapor-liquid mixture through the capillaries 16K, in connection with the proposed construction of the capillary condenser allows the condensation process is mostly steam without using an external refrigerant. For condensation of residual neskondensirovannyh pair of cameras residual condensation 13 to the outlet of the condensing elements 11 to enough air moving through free convection through air gaps 2K capillary teletrabajo condenser K.

In the proposed BSTA pump function perform wicks-collectors 6I, 9K and transport wick TF, as a function of the compressor and throttle - capillary deplorably capacitor To

Thus the proposed BSTA without a fan, compressor, pump and throttle allows the cooling process, for example, heat sources in the computer, without the cost of electricity and silently, that provides an efficient, comfortable and reliable operation of its fuel equipment.

Silent teplotvornaja cooling system including a heat source and a closed flat deplorably evaporator, in which the inner surface of the bottom covered by a wick, and a condenser equipped with steam and a liquid pipe connected between the steam line and condensate pipeline, characterized in that talocrural evaporator outer surface is of orpus opposite the heat source is covered with zigzag edges, and the inner surface is covered with a grid of porous material connected with their ends with a wick-collector adjacent to the inner surface of its lateral and lower ends, through which the inlet nozzle of the condensate is connected with the transport wick placed in the condenser and the capillary deplorably condenser-cooler is a flat rectangular housing with a longitudinal vertical through air slits, provided placed at its opposite ends connections steam inlet and condensate outlet, divided in the vertical wall with vertical slots adjacent to the end walls of the air gaps, the steam manifold and the working chamber, the inner surface of the bottom wall of the casing teletrabajo condenser-cooler is covered with a layer of wick, which in the working chamber in the cavities between the side vertical walls of two adjacent air gaps placed sections of condensation and cooling, each of which consists of two vertical partitions, between which is arranged a vertical steam distribution channel which is connected with a steam header through a vertical slit, and between the side vertical walls of two adjacent air gaps and the aforementioned two vertical walls are vertical the actual camera residual condensation, each vertical partition consists of several vertical perforated plates placed with a gap between them, covered with a layer of hydrophilic material or made of it, the holes which are made in the form of a horizontal tapered capillaries arranged so that the small holes are tapered capillaries previous plates are placed against the large holes with tapered capillaries subsequent plate in the cavity of each steam chamber plate vertical partitions facing large holes tapered capillaries and into the cavity of each chamber residual condensation, on the contrary, plate vertical partitions facing small holes tapered capillary, the inner surface of the vertical side walls of the vertical chambers residual condensation covered the lattice of porous material, all gaskets porous hydrophilic material and the lattice of porous material connected with a layer of wick, which, in turn, through the outlet condensate outlet connected with the transport wick of condensate.



 

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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 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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