Method to make panels with inbuilt heat pipes and/or inserts, panel with inbuilt heat pipes and/or inserts
SUBSTANCE: method intended to make panels with inbuilt heat pipes and/or inserts includes the following operations. Provision of lower board, which comprises lugs in selected areas, at both sides of heat pipes or inserts arrangement zones, and lugs are substantially flat and are intended for straightening over upper surface of lower board. Partial straightening of lugs in direction of arrangement zones. Arrangement of heat pipes and/or inserts in each zone of arrangement between lugs and in contact with upper surface of lower board. End of lugs straightening so that they adjoin side surfaces of heat pipes and/or inserts. Application of a layer of the first glue of specified thickness to side surfaces of heat pipes and/or inserts. Arrangement of intermediate structures at both sides of side surfaces of each heat pipe and/or insert, having substantially the same height that height of heat pipes and/or inserts and being in contact with upper surface of lower board. Arrangement of upper board above heat pipes and/or inserts and intermediate structures and in contact with them.
EFFECT: simplified manufacturing of panels.
16 cl, 7 dwg
The invention relates to panels with integrated heat pipes and/or inserts, and in particular to methods of manufacturing such panels.
Under "panel with integrated heat pipes or inserts" means the panel containing plates, called upper and lower, between which is still installed heat pipes and/or inserts (for example, two or three, and also thirty or forty)separated by an intermediate structures such as honeycomb (or "Nida"). However, under the "inserts" imply a unit, for example, aluminum, which is used further for fixing the installed equipment.
Specialist in the art it is known that the manufacture of such panels can be done in two ways, containing several stages, starting with a flat sheet or marble slab), the upper and lower plates, the heat(s) of the pipe(pipes) and/or inserts, rods and intermediate structures.
The first method consists, primarily, in the processing cores to their full coating material, allowing their removal from moulds. Then you should put the bottom plate on a flat sheet and applying a layer of glue. Next, the intermediate patterns are placed at selected locations to determine the area of the heat pipe or insert. Then heat pipes and/or inserts are placed in the zones of their time is edenia between the intermediate structures. And, finally, part of the free space between the heat pipes and/or inserts and intermediate structures must be filled with glue swelling type. After that, the upper plate (or additional sheet) is placed on top of heat pipes and/or inserts and intermediate structures before contact with them after coating the lower surface of the upper plate layer of glue. Then the treated rods are inserted through the upper plate (or additional sheet) so that they are located in the space containing swellable adhesive on both sides of the heat pipes and/or inserts. The entire complex (including a marble slab) should be placed in an oven or autoclave for a specified period of time for polymerization of the panel. Then it should be removed from the form. Thereafter, the rods are extracted from the form. Then the rods must be clean.
It should be noted that in the case of using an additional sheet should be removed and glued permanently to the upper plate, called "flight plate" (use additional sheet allows you to reconcile the expansion of swelling of the adhesive without the use of x-ray analysis).
The second method consists, primarily, in the processing of the rods so as to fully cover the material, allowing you to remove them from the mold. Then you should have treated crucial and in selected areas of the marble slabs the corresponding zones of the placement of heat pipes or inserts on the bottom plate. Further, the bottom plate, pre-coated with adhesive, should be placed on a flat sheet so that through him you miss rods. Then, the intermediate structure located between the lines of the rods outside the zones of placing a heat pipe or insert. After heat pipes or insert must be pomnite in the areas of allocation between the lines of the rods. After that, the free space between the heat pipes and/or inserts and intermediate structures should be filled with glue swelling type. Then heat pipes and/or inserts and intermediate patterns should cover the top of the upper plate (or additional sheet) before contact with the latter, pre-coated bottom surface of the top plate layer of glue. The entire complex (including a marble slab) are placed in an oven or autoclave at a specified time for polymerization of the panel. Then the panel carefully removed from the mold, releasing from rods rigidly connected with a marble slab. And finally, you should clear the rods.
Now the second method is more preferable because the tolerances for the location of heat pipes and/or inserts are small (typically of the order of a millimetre). But these tolerances quickly selected, as soon as the number of heat pipes and/who do inserts becomes significant and the size of the panel increases.
In any of the used method, the number of stages is too large, and removal of cores of the panels is difficult and sometimes almost impossible due to the effect of adhesive on the shaft or on the location where the protection can be damaged when performing manipulations and/or when they are poorly protected. The situation, of course, can be improved by using, for example, conical studs and/or holes, with flattening, but it will increase the cost and will not reduce the number of necessary operations.
None of the known methods is entirely satisfactory, and the invention, therefore, aims to improve the situation by offering this manufacturing method, which does not require the use of rods while maintaining the accuracy of the location of heat pipes and/or inserts (and even increasing it, as it becomes less or equal to 1 mm), providing, thus, the ability to combine a large number of heat pipes and/or inserts, usually from thirty to forty, maybe even more.
To achieve this goal, we propose a method of manufacturing the panel(s) with built-in heat(s) tube(s) and/or inserts, comprising the steps:
a) preparation of the bottom plate, containing, in selected places, placed on both sides of the drop zones of the heat pipes and/or inserts, essentially square the sky tabs which can be bent upward from the upper surface,
b) partial straightening of the reeds in the direction of drop zones,
(C) the location of the heat pipes and/or inserts in each zone between the reeds and in contact with the outer surface of the bottom plate,
d) the end of the straightening of the reeds adjacent to the side surfaces of the heat pipes and/or inserts,
e) applying the first adhesive layer of a selected thickness on the side surfaces of the heat pipes and/or inserts,
f) the location of the intermediate structures of essentially the same height as the height of the heat pipes and/or inserts, with both sides of the lateral surfaces of each of the heat pipes and/or inserts and in contact with the top surface of the bottom plate,
g) placing the upper plate above the heat pipes and/or inserts and intermediate structures in contact with the latter.
The method according to the invention may contain other features which can be taken separately or in combination, and including:
- on the stage) you can place the bottom plate on a sheet or marble slab) selected flatness before the location of the heat pipes and/or inserts;
- in stage b) can be applied to the upper surface of the bottom plate one layer (second) adhesive before or after partial straightening of the reeds;
- on stage (g) before placing the top dps which you can apply on its lower surface intended for contact with heat pipes and/or inserts and intermediate structures) one layer (second) adhesive;
- in stage b) can be partially bend the tabs that they form an angle with the top surface of the bottom plate, is selected in the range between about 15° and about 45°. For example, you can choose the angle of about 30°;
- tabs can be made in the bottom plate by known means machining, laser cutting, sharp jet of fluid, punching;
- alternatively, the tabs may be additionally performed on the upper surface of the bottom plate;
- in stage C) on the sheet (or a marble slab) can be placed curb frame, and then place the bottom plate;
- after step g) can be done in step h), consisting in placing the assembled panel in an oven or autoclave;
- after surgery (h) can be done in phase i), which consists in removing from the mold assembled panels for its separation from marble slabs;
- you can use an intermediate structure type cell structures;
- you can use one (first) adhesive swelling type.
In the invention it is also proposed panel with built-in heat pipes(Oh) and/or inserts(Oh), made according to the method of manufacture shown above.
The invention, particularly applicable, although not limited to the manufacture of panels with integrated heat pipes and/or inserts designed for use in outer years is tion apparatus, for example satellites. It can be used in other areas, such as in aircraft or vehicles, as soon as there is the need to embed the heat pipe or the insert panel (or "metal sandwich").
The invention is further explained in the following description, which is not restrictive, with reference to the accompanying drawings, in which:
1 schematically depicts the upper surface of the bottom plate panel with integrated heat pipes,
figure 2 schematically depicts a cross section of the bottom plate of figure 1 after partial straightening of the reeds,
figure 3 schematically depicts a cross section of the bottom plate of figure 2 after location on a marble slab and after installation of the heat pipes in their drop zones,
figure 4 schematically depicts a cross section of the bottom plate of figure 2 after location on a marble slab, after installation of the heat pipes in their drop zones and after full straightening of the reeds,
figure 5 schematically depicts a cross section of the bottom plate of figure 2 after location on a marble slab, after installation of the heat pipes in their areas of allocation, after a complete straightening of the reeds and causing swelling of the adhesive on the lateral surface of the heat pipes
6 schematically depicts a cross section lower the plate of figure 2 after location on a marble slab, after installation of the heat pipes in their areas of allocation, after a complete straightening of the reeds, after causing swelling of glue on the side surfaces of the heat pipes and the arrangement of the intermediate structures,
7 schematically depicts a cross section of the bottom plate of figure 2 after location on a marble slab, after installation of the heat pipes in their areas of allocation, after a complete straightening of the reeds, after causing swelling of glue on the side surfaces of the heat pipes, after placing the intermediate structures and install the top plate.
The attached drawings serve not only to complete the invention, but also, if necessary, for its definition. It is important to note that in figure 1-7 corresponding to the dimensions of the various elements are relative and do not represent the real size.
The aim of the invention is simplified manufacturing panels with integrated heat pipes and/or inserts without the use of fixing rods.
Below as a non-limiting example will be presented to the panel with integrated heat pipes, designed for installation on the spacecraft, such as satellites. But such panels can only contain inserts (instead of heat pipes) or the Association of the heat pipe(s) and inserts(CI). In addition, these panels can be at the established other equipment or systems, in particular in the field of aircraft or vehicles, if necessary, the introduction of a heat pipe or insert in the panel. Such panels may be of any size, such as 6 m ×5 m (the size limit depends on the size of the autoclave in which the polymerization).
For implementing the method according to the invention must, above all, to ensure that the first stage (a)at least one bottom plate SI, for example, from aluminum, the upper plate of the SS, for example, of aluminum, heat pipes Ci (and/or insertion), usually linear forms (but which may take any geometric shape, such as L-, U-, V - or S-shaped), and intermediate structures Nj, for example, cell type (or "Nida") aluminum having a height essentially equal to the height of the heat pipes Ci. Preferably also have a flat surface (usually called a marble slab) MS having a sufficient flatness (typically of the order of 0.1 mm to 100 mm when the overall flatness of 2 mm).
The following concepts are lower(ll) and upper(Yaya) denote systematically or position relative to the marble slabs (MS), or orientation, respectively, to the upper bearing surface of the marble slabs (MS) and is identical to this (upper) bearing surface (and, therefore, opposed to it).
In accordance with the invention and as shown in Fi is .1, the bottom plate SI contains the tabs (or "stoppers") L essentially flat, which initially are essentially parallel to its upper surface, and may be deflected from her up.
Under the tab " means any item (or foot, or clip)made integral with the plate SI and which can be bent by about 90° relative to the upper surface of the mentioned bottom plate SI.
These tabs can be manufactured by any well-known specialist in this field by the way. For example, as shown in figure 1, they can be made in the bottom plate SI machining, laser cutting, sharp jet of fluid or punching. For example, in the case of machining, they can be executed by the cutter in 5/10thmillimeters in diameter. In this case, the lugs L are initially in the areas of incision ZD bottom plate SI.
Alternatively, the tabs L can be imposed on the upper surface of the bottom plate SI. In this case, they are made separately and then rigidly fixed at the level of the selected areas on the upper surface of the bottom plate SI, for example, by welding or gluing.
In the example schematically shown in figure 1, the lugs L are essentially triangular (or V-shaped) form. But it is not mandatory. Acceptable any form of fixation (or podklinivanija) when onocr the nom bending, in this part, adjacent to the heat pipe may be semicircular or Crescent.
These tabs L are located in selected areas of the bottom plate SI on both sides of the drop zones ZCi, which must be installed heat pipes Ci. The reeds L, we can say, installed in series, which limit the lateral edge zones of placing a heat pipe ZCi. Zone ZNj the upper surface of the bottom plate SI, which are placed on both sides of the drop zones ZCi heat pipes, designed for intermediate structures (or Nida) Nj. In the schematic and non-limiting example depicted in figure 1-7, the bottom plate SI contains two drop zones heat pipes ZC1 and ZC2 (i=1 and 2) and three zones of the intermediate structures of ZN1-ZN3 (j=1-3). However, the number of drop zones heat pipes ZCi and zones of intermediate structures ZNj may be significantly greater than 2 and, if necessary, for example, 30 or 40, even 60.
The number of reeds L, bounding each area of the heat pipes ZCi, varies depending on the size and geometry (or shape) of the heat pipes. For example, you can provide them a number from 6 to 8 and more for each of the heat pipes Ci.
As soon as the lugs L are installed, the bottom plate SI, at least, can be treated to increase the adhesion of the glue.
In the second stage (b), shown in figure 2, the lugs L of the bottom plate SI part is but bent in the direction of the drop zones heat pipe ZCi.
This partial extension allows you to place heat pipes Ci in their drop zones ZCi. It is easy rotation of all of the reeds L that they form a given angle relative to the upper surface of the bottom plate SI. When the tabs L are not overlaid, they are allocated from a zone cut ZD.
The angle of rotation is, for example, from about 15° to about 45°. You can, for example, to select the angle of bending is approximately 30°, as schematically depicted in figure 2.
In this second step (b) the upper surface of the bottom plate SI may be, if necessary, covered with a layer of the second adhesive SE, before or after partial straightening of the reeds. The adhesive layer SE can be applied, for example, on the upper surface in the form of a film of small thickness, typically 100-150 g per 1 m2or thickness of approximately 0.1 mm, the adhesive SO taken, for example, type redux 312.
At the third stage (C), schematically shown in figure 3, heat pipes Ci have in their respective areas of allocation ZCi, i.e. between pairs of rows of reeds L, the bounding area ZCi. This arrangement is intended to ensure contact the bottom surface of the heat pipes Ci with the top surface of the bottom plate SI for fixed mounting on the latter with a layer of a second adhesive SE.
To improve the adhesion of heat pipes Ci to the upper surface of the lower p is the ITA SI on heat pipes Ci can also apply a layer of the second adhesive SO before you install them in the area ZCi.
However, as shown in figure 3, to facilitate the manufacture of the panel p of the bottom plate SI may be placed on a flat surface (or a marble slab) MS before the location of the heat pipes Ci in their drop zones ZCi. In this case, the bottom surface of the bottom plate SI is placed on the upper surface of the marble slabs MILLISECONDS.
The manufacture of the panel P can be further simplified by placing the bottom plate SI inside curb frame SV placed on the upper surface of the marble slabs MILLISECONDS.
In the fourth stage (d), schematically depicted in figure 4, again unbend the tabs L to their attachment to the lateral surfaces of the heat pipes Ci. At the end of the final bending angle between the reeds L and the bottom surface of the SI becomes essentially equal to 90°. Heat pipes Ci, therefore, well positioned and secured in their respective areas of allocation ZCi.
On the fifth step (e), schematically depicted in figure 5, put a layer of first adhesive SE on the side surfaces of the heat pipes Ci, as well as in the fully deflected tabs L. This layer (first adhesive has a predetermined thickness. For example, choose a thickness of about 2 mm (but it can be less or more depending on the type (first) layer SE glue used).
This (first) adhesive SE is preferably swelling, that is, it transforms into a sticky foam and apolnet all voids, educated Nida Nj with the side surfaces of the heat pipes Ci. For example, you can use glue CE type redux 206.
At the sixth step (f), schematically depicted in Fig.6, place the intermediate structure (or Nida) Hj in the relevant areas of plant ZNj, i.e. on both sides of the heat pipes Ci.
This arrangement is intended to ensure contact of the inner surface of the intermediate structures of Nj with the top surface of the bottom plate SI for their immobilization on the last due to a layer of the second adhesive to which it was applied.
To improve the adhesion of the intermediate structures of Nj to the upper surface of the bottom plate SI intermediate structure, Nj may also, if necessary, be covered with a layer of the second adhesive before placing them in areas of installation ZNj.
It is important to note that the fifth (e), and sixth (f) the steps can be interchanged. In this case, first place the intermediate structure Nj in their respective areas of plant ZNj, then put a layer of first adhesive SE between the side surfaces of the heat pipes Ci and adjacent intermediate structures Nj.
At the seventh step (g), schematically depicted in Fig.7, the top plate SS is placed over the upper surfaces of the heat pipes Ci and intermediate structures Nj that its bottom surface is in contact with the said upper surface is due.
To improve the immobilization of the upper plate of SS relative to the heat pipes Ci and intermediate structures Nj its lower surface covered with a layer of the second adhesive prior to installation on the place.
At this stage the various elements (SI, Ci, L, Nj and SS), forming the panel P, is already connected.
The method may include the eighth step (h), in which the panel P with integrated heat pipes, preferably placed on a marble slab MS is injected into a furnace or autoclave at a certain time and under certain pressure. This placement in the furnace is intended for polymerization of the first and second types of glue (when they are used for this purpose) and, consequently, the final consolidation of the various elements (SI, Ci, L, Nj and SS) in the assembled panel P with respect to each other.
In this case, the method ends the ninth stage (i) removing from the mold, designed to separate the assembled panel P from marble slabs MILLISECONDS.
The method according to the invention provides significant advantages over known methods, in particular:
- exception use rods and, therefore, the initial extraction of the forms and their treatment in prison, as well as savings on manufacturing,
- a runtime exception holes in the top plate, and a marble slab for the passage of rods
- a runtime exception holes in the accompanying pre is the metal (as, for example, coated with Teflon fiberglass)used to prevent sticking,
the exception of the removal action rods, which is very delicate
- automatic and very precise installation of the heat pipes and/or inserts and intermediate structures
- lack of redundancy of the drop zones (first) swelling glue,
- the use of a single polymerization plate regardless of the type of the panel,
- one stage polymerization instead of two,
- eliminates the risk of inability to eject from the mold.
The invention is not limited to variants of the method of manufacturing panels with integrated heat pipes and/or inserts described above as examples, but it encompasses all variants that may encounter a specialist in this field in the framework of the following claims.
1. A method of manufacturing the panel(s) (R) with built-in(s) heat pipe(s) and/or insertion(s), characterized in that it consists of a) the availability of plates, called the lower (SI)containing the selected sites hosted on both sides of the drop zones heat pipe or insert (ZCi), reeds (L)is essentially flat and designed for straightening above the upper surface of the plate, (b) partial straightening mentioned reeds (L) in the direction of drop zones (ZCi)) the location of the aforementioned heat pipes and/or the inserts (Ci) in each zone (ZCi) between the tabs (L) and in contact with said top surface of the bottom plate (SI), d) after straightening mentioned reeds (L) in such a way that they are pressed against the lateral surfaces mentioned heat pipes and/or the inserts (Ci), e) applying the first adhesive (SE) layer of specified thickness on the side surfaces of the heat pipes and/or inserts (Ci), (f) placing the intermediate structures (Nj) is essentially the same height as the aforementioned heat pipes and/or the insert (Ci), with both lateral sides of each of the heat pipes and/or inserts (Ci), and contact with said top surface of the bottom plate (SI), and (g) placing the upper plate (SS) above mentioned heat pipes and/or inserts (Ci) and the above-mentioned intermediate structures (Nj) in contact with the latter.
2. The method according to claim 1, characterized in that in stage C) before implementation of the location of heat pipes and/or inserts (Ci) mentioned bottom plate (SI) is placed on the selected surface flatness (MS).
3. The method according to claim 1, characterized in that stage b) referred to the upper surface of the bottom plate (SI) is covered with a layer of the second adhesive (SE) after partial straightening mentioned reeds (L).
4. The method according to claim 1, characterized in that stage b) referred to the upper surface of the bottom plate (SI) cover with a second layer of glue before partial straightening mentioned reeds (L).
5. The method according to claim 1, characterized in that in step (g) before saving the tion mentioned upper plate (SI) its lower surface, which must be in contact with the said heat pipes and/or inserts (Ci) and the above-mentioned intermediate structures (Nj), cover with a layer of this second glue.
6. The method according to claim 1, characterized in that stage b) partially straighten the mentioned tabs (L) so that they made an angle with the top surface of the bottom plate (SI)selected in the range from 15° to 45°.
7. The method according to claim 6, characterized in that the said angle is selected to be essentially 30°.
8. The method according to claim 1, characterized in that the tabs (L) is performed in the above-mentioned bottom plate (SI) by technical means, selected from the group consisting of, at least, machining, laser cutting, the cutting jet of fluid and stamping.
9. The method according to claim 1, characterized in that the tabs (L) are superimposed on the upper surface of the mentioned bottom plate (SI).
10. The method according to claim 2, characterized in that in stage C) to the selected surface flatness (MS) place a curb frame (ST), then the mentioned bottom plate (SI) is placed in said curb frame (SW).
11. The method according to claim 1, characterized in that after step (g) it contains step h), which referred to the assembled panel (B) placed in an oven or autoclave.
12. The method according to claim 11, characterized in that after step (h) it contains phase i), in which sobran the second panel (B) is removed from the mold to separate from said selected surface flatness (MS).
13. The method according to claim 1, characterized in that use intermediate patterns (Nj) cell shape.
14. The method according to claim 1, wherein using the first adhesive swelling type.
15. Panel (R) with built-in heat(s) tube(s) and/or insertion(s), characterized in that it is made using the manufacturing method according to one of the preceding paragraphs.
16. The panel 15, characterized in that it is designed for installation in the spacecraft.
FIELD: power industry.
SUBSTANCE: heat pipe electric element includes housing made from dielectric material and consisting of the cover blanked off on both edges with hot and cold walls made from dielectric material; casing made from electrically conducting material and placed inside the shell coaxially so that its upper and lower edges are toothed along the whole perimetre and tightly pressed with tops of teeth to inner surfaces of hot and cold walls so that triangular holes are formed between teeth and interact with steam transport zone, thus forming evaporation and condensation zones; annular space between the shell and casing is filled with wick made from porous material with homogeneous electrochemical characteristic, which in its turn is filled with working liquid, and upper and lower edges of casing are connected with electric wires to upper and lower external terminals.
EFFECT: improving efficiency and reliability.
SUBSTANCE: integrated heat tube includes housing forming a closed vacuum chamber having heat transfer medium and a group of heat conductors connected to the closed chamber. Each group contacts the closed chamber and heat transfer medium. Radiating surface of heat tube can be considerably enlarged owing to changes in construction of heat conductors. Method for ensuring large heat dissipation surface for integrated heat tube involves steps at which there made is corrugated thin-wall channel or heat-absorbing construction or any of their combinations. There made is curved surface for corrugated thin-wall channel for fluid medium, or curved surface for thin-wall channel for fluid medium in the form of a closed tube, or curved or bent surface for heat-absorbing construction or any of their combinations. There made is a group of thin-wall channels for fluid medium inside the closed chamber. Method of developing the construction of heat-absorbing end of integrated heat tube, which involves the steps at which the heat-absorbing end shall be smooth and flat or smooth and protruding or smooth and deep, there provided are cavities passing through opposite sides or through one and the same side of the housing. There made is heat-absorbing end of heat tube in the form of closed corrugated thin-wall curved surface; at that, there made are groups of finned curved surfaces, there made is metal plate having cavity, channel for molten substance, and air discharge channel. Method of heat exchange in integrated heat tube, which involves the steps at which there provided is heat absorption owing to contact with heat source on the surface of heat-absorbing end of heat tube housing; at that, heat is transferred to the same heat transfer medium in the same closed chamber through surface of heat-absorbing housing end. Method of heat exchange in rotary integrated heat tube using liquid medium involves the steps at which there used is round cross-section of heat tube housing as heat-absorbing end for heat absorption owing to contact with heat source during high-speed rotation when heat tube rotates at high speed.
EFFECT: large cooling area, high heat transfer speed, low heat resistance.
63 cl, 23 dwg
SUBSTANCE: invention relates to heat engineering, and namely to heat tubes intended mainly for freezing of soil with the purpose of reinforcement of foundations and bases of various facilities erected on permanently frozen soils. In gravity-assisted heat pipe containing tight housing partially filled with liquid heat carrier and having evaporation and condensation zones and with transportation zone, housing in evaporation zone and in transportation zone or in any of those zones has at least one insert made in the form of bellow connected with cylindrical tips to the housing sections between which an insert is located, bellow is enclosed in flexible metal sleeve the ends of which are fixed on the above tips; the insert is also equipped with rigid removable casing for fixing mutual position of the housing sections between which there is an insert made with possibility of being located around the above sleeve and attached to the housing sections adjacent to the insert.
EFFECT: design of the tube provides high degree of manufacturability, transportation and installation thereof to operating position on the object.
3 cl, 7 dwg
FIELD: heating systems.
SUBSTANCE: invention is intended for cooling of ground and can be used in construction industry. Heat pipe includes tubular housing, condenser of which is located above the ground surface, and evaporator - in cooled ground, which are provided with external finnings, filler pipe for vacuum treatment and filling of heat pipe with heat carrier with its further sealing. Heat pipe is provided with removable refill capacity tightly installed on the end of heat pipe condenser by means of coupling nut and by using annular seal. Filler pipe is connected to cavity of the above capacity, through end wall of which in direction of longitudinal axis of heat pipe there tightly installed is female wrench for the sealing screw installed in the edge of condenser along longitudinal line of heat pipe. From lower edge of sealing screw there made is central channel with side outlet for passage of heat carrier from cavity of removable refill capacity to cavity of heat pipe. Side outlet is located above annular seal of sealing screw when it is not completely screwed and below the above annular seal when the screw is completely tightened. Heat pipe is provided with sealing element in the form of a plug for installation instead of removable refill capacity after filling is completed.
EFFECT: increasing heat pipe efficiency.
2 cl, 3 dwg
FIELD: heating systems.
SUBSTANCE: control method of heat pipe filling quality involves heat supply to one of its sections and measurement of temperatures at two points on opposite ends of heat pipe on both sides from heat supply zone. Temperatures are measured at heat pipe points at several heat flux values in the range of zero to maximum operating value. Then curve of difference of measured temperatures of heat flux value is built, and as per this curve, the conclusion is drawn whether there is non-condensed gas in heat pipe or not.
EFFECT: improving sensitivity and accuracy of quality control of heat pipe filled with heat carrier.
FIELD: engines and pumps.
SUBSTANCE: proposed coaxial multi-heat pipe engine comprises evaporation and condensation chambers consisting of vertical shells with their inner surface coated with strips and grid made from porous material and wick, all having their open end faces connected to covers of appropriate distribution (separation) sections. Evaporation chamber separated, from below, by concave perforated entrainment separator, accommodates distributing manifold furnished with nozzles arranged at the evaporation shell centers. Evaporation and condensation chambers communicate, via O-ring, with working chamber housing coaxially mounted power turbines. The latter have the peripheral edges of their vanes rigidly attached to inner wall of said working chamber, along normal to said inner wall surface. Distributing manifold center accommodates cylindrical vessel and feed pump communicated with distributing manifold of evaporation chamber.
EFFECT: higher efficiency.
FIELD: heating systems.
SUBSTANCE: inventions are intended for heat removal and can be used in aircraft. Cooling device includes tube system which is tightly closed in relation to ambient atmosphere, has thermal coupling in heat reception section with heat source, and in heat transfer section - with heat absorber and which has adiabatic transfer section. Tube system is filled with heat-transfer medium. In heat reception section and/or in heat removal section there provided is heat exchanger which connects heat source and heat absorber to tube system. Heat absorber includes aircraft external wall section. Cold accumulator is provided between heat source and heat absorber. Method of heat removal from heat source to heat absorber consists in the fact that tube system tightly closed in relation to ambient atmosphere is filled with heat transfer medium which, during heat removal from heat source in heat reception section, is changed from liquid phase to gaseous phase and supplied to heat transfer section in which it is again condensed and moves back to heat reception section. Fan is used to control heat transfer between heat source and heat exchanger.
EFFECT: reducing costs for cooling and increasing heat transfer.
15 cl, 7 dwg
SUBSTANCE: invention is aimed at heat exchanging and can be used in energy sector. A heat recovery unit comprises a casing divided by a leakproof baffle into the cells for the cold and hot media, and a heat tube bundle passing through the cells and fixed in the baffle. The cold medium cell is divided into two chambers by a wall being perpendicular to the baffle between the cold and hot media cells, namely into the cold medium preheating chamber and final heating chamber. The former chamber is filled by heat tubes along its total height and the latter chamber is made with a tank which is free from the heat tubes and made in the chamber upper part. The chambers are interconnected by a pipeline. Heat tubes in the hot medium cell or in the cold medium cell or in both cells can be ribbed.
EFFECT: expanded applicability and high economic parametres of the performance along with high heat engineering efficiency and reliability.
4 cl, 1 dwg
FIELD: heating systems.
SUBSTANCE: invention is designed for heat transfer and can be used for ensuring operation of mechanical devices submerged into liquid medium. Thermal siphon contains housing, the working volume of lower chamber of which is filled with liquid, cone by means of which the lower chamber with steam line for transporting steam is partitioned, steam generator in lower chamber and condenser in upper chamber. Condenser is cooled surface of upper chamber of thermal siphon, some part of lower chamber is intended for air accumulation and other gaseous impurities originally contained in thermal siphon. Valve for releasing some air to the outside is installed in lower chamber.
EFFECT: invention allows improving heat transfer effectiveness in thermal siphon from heated part to cooled section by intensifying heat transfer during condensation in conditions of high air content of the system.
FIELD: heating systems.
SUBSTANCE: this heat pipe is intended mainly for freezing of soil. Pipe includes tight housing filled up with heat carrier and having evaporation and condensation zones, and transport zone, as well as thermoelectric elements, cold surfaces of which have thermal contact to external surface of housing wall in condensation zone, and hot surfaces - to heaters. Peculiar feature of pipe is that housing is provided with external surface of wall having rectangular shape (60) in cross section in condensation zone at the internal cross section in that zone, which does not change as to housing length. Thermoelectric converters (6) are installed on all four sides of external surface of housing wall, and heaters are made in the form of finned plates (8) so that they form cavity (9) enclosing the housing, and free internal volume of the above cavity is filled with low heat-conducting material with low saturation coefficient.
EFFECT: increasing heat transfer ability of heat pipe.
FIELD: cooling equipment, particularly heat exchange apparatuses.
SUBSTANCE: device to remove heat from heat-generation component includes coolant stored in liquid coolant storage part, heat absorbing part including at least one the first microchannel and installed near heat-generation component. Heat absorbing part communicates with storage part. Liquid coolant partly fills microchannel due to surface tension force and evaporates into above microchannel with gaseous coolant generation during absorbing heat from heat generation component. Device has coolant condensing part including at least one the second microchannel connected to above coolant storage part separately from the first microchannel, gaseous coolant movement part located near heat-absorbing part and condensing part and used for gaseous coolant movement from the first microchannel to the second one. Device has case in which at least heat-absorbing part is placed and heat-insulation part adjoining heat absorbing part to prevent heat absorbed by above part from migration to another device parts.
EFFECT: reduced size, increased refrigeration capacity, prevention of gravity and equipment position influence on device operation.
22 cl, 4 dwg
FIELD: heat power engineering.
SUBSTANCE: heat pipe comprises vertical housing with evaporation and condensation zones and partially filled with heat-transfer agent and coaxial hollow insert in the evaporation zone which defines a ring space with the housing and is provided with outer fining. An additional hollow cylindrical insert of variable radius made of a non-heat-conducting material is interposed between the condensation zone and coaxial hollow insert. The outer side of the additional insert and inner side of the housing of the heat pipe define a closed space.
EFFECT: reduced metal consumption.
FIELD: heat power engineering.
SUBSTANCE: heat exchanger comprises housing separated into chambers of evaporation and condensation with a baffle provided with heat pipes which are arranged in both of the chambers. The zones of evaporation of the pipes are positioned inside the evaporation chamber, and zones of the condensation of the pipes are positioned inside the condensation chamber. The heat pipes inside the evaporation chamber are made of wound pipes of oval cross-section. The zones of condensation of heat pipes are also made of wound pipes of oval cross-section .
EFFECT: enhanced efficiency.
1 cl, 6 dwg
FIELD: heating engineering.
SUBSTANCE: heat pipe can be used for heat transmission and temperature control procedures. Heat pipe has evaporator provided with capillary-porous nozzle and capacitor. Evaporator and nozzle are connected by vapor line and condensate pipeline. Nozzle is made of electric-insulating material, for example, of ceramics. Grid-shaped electrode is mounted at the inner side of nozzle. The electrode is connected with rod electrode, which is mounted inside airtight isolator at edge part of evaporator.
EFFECT: improved heat power; prolonged length of heat pipe.
FIELD: heat-power engineering; utilization of low-potential heat, heat of soil inclusive.
SUBSTANCE: proposed thermosiphon includes heat pump with thermosiphon containing working medium capable of changing its liquid state to gaseous state and vice versa; it includes evaporation and condensation parts; thermosiphon is provided with hermetic thermal tube whose working medium is capable of changing its liquid state to gaseous state and vice versa; it also has evaporation and condensation parts; condensation part of thermal tube bounds cavity of heat pump evaporator together with outer housing, cover and lower platform; said cavity is provided with branch pipes for delivery of liquid phase of heat pump working medium and discharge of gaseous phase of heat pump working medium in such way that condensation part of thermal tube forms inner housing of heat pump evaporator; mounted in between of outer and inner housings of heat pump evaporator is intermediate housing which is provided with holes in lower part for passage of liquid or gaseous phase of heat pump working medium circulating inside its evaporator; tubes-nozzles mounted between inner and intermediate housings are directed vertically upward for admitting liquid phase of heat pump working medium under pressure; heat pump evaporator has inner surfaces. Besides that, outer, inner and intermediate housings of heat pump evaporator are taper in shape and are so located that have common vertical axis of symmetry; inner surfaces of heat pump evaporator and inner housing are finned.
EFFECT: considerable reduction of thermal head between soil and working medium in heat pump evaporator; reduced overall dimensions; possibility of utilization of energy of compressed liquid fed from heat pump condenser to evaporator.
3 cl, 2 dwg
FIELD: heat transfer equipment, particularly to carry heat for long distances, for instance refrigerators.
SUBSTANCE: heat-exchanging system comprises closed loop including main heat-exchanging channel, heat carrier agent pumping device, additional heat-exchanging channel and heat-carrier supply channel connecting the main and additional heat-exchanging channels. Heat carrier agent pumping device may withdraw heat carrier agent in vapor or vapor-and-liquid state from one heat-exchanging channel and supply above vapor or vapor-and-liquid heat carrier agent under elevated pressure into another heat-exchanging channel. Heat carrier agent supply channel is formed as channel with capillary partition closing the channel. During heat-exchanging system operation the capillary partition obstructs vapor penetration or vapor-and-liquid flow. The vapor penetration obstruction is defined by cooperation between meniscuses and inner surfaces of capillary channels formed in the partition. The vapor-and-liquid flow obstruction is defined by bubble meniscuses cooperation with inner surfaces of capillary channels of the partition. The heat carrier agent pumping device may withdraw vapor or vapor-and-liquid heat carrier agent from any heat-exchanging channel and pump above heat carrier agent under elevated pressure in another heat-exchanging channel.
EFFECT: increased efficiency of heat-exchanging system.
14 dwg, 18 cl
FIELD: applicable for heat abstraction in various media.
SUBSTANCE: the heat transferring device has a sealed pipe with condensation and evaporation zones filled up with a heat-transfer agent with pockets provided on the inner surface, the pockets used for inhibition of draining condensate are located in the evaporation zone and made annular or formed by the sections of the helical surface adjoining the pipe inner wall with its lower edge at an acute angle, which are separated from one another by radial partitions, the annular pocket is formed by the side surface of the truncated cone, adjoining the inner wall of the mentioned pipe with the larger base. Besides, at least some of the pockets located one above other are positioned at such a distance that a capillary effect occurs between the surfaces facing one the other.
EFFECT: enhanced efficiency of heat transfer due to the increase of the pipe surface wettable by the heat-transfer agent, as well as simplified structure an facilitated actuation of the device.
3 cl, 7 dwg
FIELD: chemical and oil industry.
SUBSTANCE: reactor comprises housing, means for supplying initial components and discharging finished product, unit for heating and cooling made of a number of heat pipes, additional catalyzer applied on the heat pipes and/or housing and made of a coating. The heat pipes are staggered in the space of the housing. The total area of the surface of the heat pipes in the catalytic zone should provide heating and cooling the catalytic zone.
EFFECT: enhanced efficiency.
5 cl, 1 dwg
FIELD: electric mechanical engineering, possible use for cooling electric generators and electric engines.
SUBSTANCE: in proposed system for cooling electric machines, containing compressed air source with force pipeline, splitting vortex pipe, having as a result of energy division to hollows - hot one and cold one, thermal pipe made inside the hollow shaft of electric machine, as a special feature, along axis of hollow shaft a tubular channel is made for passage of cold flow from splitting vortex pipe, and space, formed by external surface of tubular channel and internal surface of hollow shaft is thermal pipe, condensation area of which - external surface of tubular channel, and evaporation area - internal surface of hollow shaft.
EFFECT: efficient and even cooling of electric machine, simplified construction, increased manufacturability.
FIELD: control of temperature of spacecraft and their components.
SUBSTANCE: proposed method includes measurement of temperatures in spacecraft temperature control zones, comparison of these temperatures with high and low permissible magnitudes and delivery of heat to said zones at low limits. Heat is delivered by conversion of electrical energy into thermal energy. Power requirements are measured at different standard time intervals of spacecraft flight forecasting orientation of its solar batteries to Sun. Magnitude of electric power generated by solar batteries is determined by forecast results. Measured magnitudes of consumed electric power are compared with forecast data. According to results obtained in comparison, flight time is divided into sections at excess of energy generated by solar batteries over consumed power, equality of these magnitudes and shortage of generated energy. High magnitudes of temperature are maintained at excess energy sections by conversion of difference of generated energy and consumed energy into heat. In case of reduction of generated energy in the course of changing the orientation of solar batteries on Sun, temperature in these zones is reduced to low limits at simultaneous equality of energies. In case of further increase of generated energy, temperature in said zones is increased to high limits at equality of energies. Then, in the course of change of generated energy, temperature correction cycles in temperature control zones are repeated.
EFFECT: avoidance of excess of consumed energy above generated energy of solar batteries.