Metallic element with a honeycomb structure of the interwoven layers of sheet metal (options)
(57) Abstract:Usage: in vehicles as housing-catalyst carrier for exhaust gas. The inventive metallic element with a honeycomb structure with mutually intertwined, at least partially structured sheet layers (3, 4), which are curved, in particular approximately voluntourism, the element in the outer annular zone (6) and the inner annular zone (5) has at least take three return line (2a, 2b, 2c,..., ACC. 7a, 7b, 7c... ), around which the bound sheet layers (3, 4) with the direction of curvature, varying respectively from the outside in, such an element may be made of a hollow roll by star-shaped deformation and subsequent weave outer part surrounding the inner part and is therefore preferred from the point of view of manufacturing technology, also you can embed long electrical conductor, performing the role of the heating conductor or the measuring sensor. Saved the mechanical advantage of the element with a honeycomb structure with multiple sheet layers, passing curved from the inside out. 2 C. and 16 h.p. f-crystals, 23 ill. From the application to the German patent DE-OS 2321378 it is known to manufacture components with a honeycomb structure from a sheet of tape, in which sheet the tape supply lines bend, fold and insert into the cylindrical sleeve. When this tape is located around the center, and the outer peripheral segments, as directed to the center of the tape, and outside, form a circle. Herself sheet tape remains not, resulting in an element with a honeycomb structure generally formed only a few flow channels of large cross-section. Inside this metal carrier remains cylindrical cavity, which cannot be used in the process of catalytic conversion.From a European patent application EP-OS 245737 known manufacturing element with a honeycomb structure from a large number of individual sheet layers. When this stack layers stacked alternately corrugated and smooth sheet sections and then this pile twist around two fixed points, so that element is formed with a honeycomb structure, the sheet layers is otoplenie element with a honeycomb structure of the bent consistently mangrooves respectively zigzag sheet of tape. In the bend regions tape provided with pre-prepared lines of bending.The prior art has several disadvantages. Thus, according to DE-OS 2321378 catalytically active surface is too small, whereas when applying, in particular, in vehicles much more desirable catalytic surface while at the same time very compact external dimensions. According to EP-OS 245 737 element with a honeycomb structure made from a separate sheet sections. However, the manipulation of such plots is very problematic, because the metal sheets are very thin and have a very smooth surface, so that they easily stick together with each other. When the manufacturer has to pay special attention to this. In DE-OS 3341868 although these shortcomings are eliminated, however, the element with a honeycomb structure is very rigid, so that it sometimes doesn't withstand thermal loads. Furthermore, the method of successive bending zigzag layers very expensive.From EP-A-0245736 known element with a honeycomb structure in which the individual sheet layers in the outer area in the form of evolvent, which leads to a very uniform structure and most of the mouth of the known metallic element with a honeycomb structure with at least partially structured sheet layers, which are curved, in particular approximately voluntourism, from the inner annular zone in the Central zone to the outer annular zone of the casing.In the method of manufacturing such elements with a honeycomb structure intertwine three or more stacks of at least partially structured metal sheets.These structural forms have many advantages, in particular, that when thermal alternating loads forces are distributed element with a honeycomb structure uniformly, however, the drawback is the fact that it is necessary to cut a large number of sheets at a certain length and stacked in piles. In addition, the individual sheet layers are not so long that one such sheet can be embedded electrical conductors of sufficient length for heating element with a honeycomb structure or for the proper measurement throughout the cross section.Although from the application WO 91/14855 known element with a honeycomb structure with at least one integrated electrical conductor, however, a simple version of the guide can have only a limited length.Thus, the objective of this Shemai surface, which are manufactured using a small number of technological stages of a small number of sheet metal and which is capable of withstanding thermal variable loads.Further, the present invention is to create an element with a honeycomb structure, in particular case-the carrier of the catalyst for purification of exhaust gases of internal combustion engines of vehicles, which consists only of a small number of sheet metal, has a uniform structure and design is also suitable for so that you know at least one of the sheet layers to embed at least one long electrical conductor or one of the sheet layers to perform as long insulated electrical conductor.To solve this problem is a metallic element with a honeycomb structure with mutually intertwined, at least partially structured sheet layers, which are curved, in particular approximately in the form of evolvent, between the outer annular area of the casing and the inner annular area of the Central section alternately in one and in the other direction, forming a loop, the element least three return line, around which the bound sheet layers.As explained below using the drawings, such an element with a honeycomb structure can be easily made from a hollow roll by star-shaped bend and the subsequent mutual weave "rays of the stars". Hollow roll consists of a spirally wound around each other structured metal sheets, which form a hollow cylinder with outer radius R and inner radius r. The cross-sectional area of the hollow cylinder is equal to (R2-r2and about the cross-sectional area corresponds to the element with a honeycomb structure, manufactured forth from this hollow roll. In the simplest case, the hollow roll is a single helix from one smooth and one corrugated sheet metal, however, there is also the possibility to make multiple-helix, for example, of alternating smooth and corrugated metal sheets. It is also possible alternating layers of differently structured sheets, such as sheets, corrugated inclined at an angle, as is known from the current level of technology in many different versions. Hollow roll can, for example, easy to flatten and not weave after this, as is known from the prior art, for example from EP 332891 B 1, and push from the outside in at least three places, resulting in a stellate form. "Rays" stars can be woven in one direction around the center of the star, resulting in a desirable cross-section, densely populated structured sheet layers. The individual sheet layers are approximately the involute with the difference that these layers, in contrast to the prior art, mutually shorted, resulting in not out perform the loose ends, and outside are only bent the rear parts of the leaves.The number of return lines which are always the same for both directions of curvature should preferably be inside and outside of not less than four. In certain applications, especially when you want to make an element with a honeycomb structure that has a hollow inner annular section, it is desirable to provide an even greater number of lines to return. The difference between the outer and inner radius (R-r) of the hollow roll and the number of return lines, as well as their initial distribution on the periphery of the hollow roll define a further form transverse cachepolicy different way, moreover, it is preferable to use from one to five sheet tapes, which at least partially have a corrugated structure. "Partially" means that such a structure has in some areas one sheet tape or it has some of the tapes. You can, for example, to produce hollow roll from a single sheet of tape which, for example, half of its length is smooth, while the second half of corrugated and then bent. It is also possible to design one smooth and one corrugated sheet tape or multiple tapes, and can find a use for all structures and substructures of sheet metal, is known from the prior art. In General, the hollow roll is preferably made of three to six layers, which are formed by winding from one to five sheet tapes.The present invention is particularly suitable for items with a honeycomb structure, in which you need to embed at least one isolated from the element with a honeycomb structure electrical conductor, which is made in the form of heating of the conductor and/or the measuring sensor. For the manufacture of, for example, the temperature sensor measuring the temperature in the transverse széchenyi. the same applies to the heating wire for electrically heated element with a honeycomb structure. In accordance with this present invention is compared to elements with a cellular structure consisting of a large number of separate sheets, the advantage that without any difficulty you can embed long conductor, such as wire, in one of the sheet layers, preferably corrugated sheet layer. As is known, such an electrical conductor can be placed, for example, in the conductor casing and, for example, to Cavalcanti between the two sheet layers. It is also possible any other way of embedding an electric conductor sheet layer, for example laying in incised corrugated sheet layer. Passing an electrical conductor through the window in the outer casing surrounding the element with a honeycomb structure, can be carried out in accordance with the unpublished application for a patent in Germany P 4129893.4 from September 9, 1991, which fully included in the present description by reference. In the General case, the element with a honeycomb structure according to the invention, is surrounded by a casing, and the extreme outer sheet layer as that of the casing along the lines of contact oblige to connect with housing high temperature soldering at least some parts of the lines of contact with the casing.Between the sheet layers should at least in some areas to connect high-temperature soldering, preferably at the site of one or both ends.A method of manufacturing a metal element with a honeycomb structure from at least partially structured sheet layers comprises the following steps:
a) from one to ten, preferably three to five sheet strips, which at least partially have a certain structure, is made hollow roll, which consists of several, preferably three to ten layers;
b) a hollow roll back inside at least three lines and deform at least three lines from the outside in, resulting in a corresponding number of lines of return as in the outer annular section and an inner annular section;
in) formed stellate structure squeeze through unidirectional rotational weave exterior lines of return in relation to the internal lines of the return.As further more explained through drawings, we are talking about a very quick and simple method of manufacture, consisting of a small number of stages. However, by lagatta evenly spaced around the periphery of the hollow roll, it is possible to make various shapes, similarly to the known diversity of forms according to the prior art. The return line, which are shown in the drawings, can also be distributed across multiple concentric circles or uneven finish the element with a honeycomb structure to obtain a special form.For example, the hollow roll can be deformed from the outside in at least four lines, and for the formation of non-circular cross-sections of the return line are arranged in the circumferential direction at different distances from each other.Without any problems in this process it is possible to build at least one sheet band formed of two closely adjacent to each other sheet layers, between which are mounted electrically insulated at least one electrical conductor. This way you can without any process changes to accommodate very long electrical conductor uniformly distributed on the cross section of the element with a honeycomb structure that can perform the role of the temperature sensor or the heating element.As already known from the prior, what is an easy way to get the element with a honeycomb structure with a hollow interior of the Central area, which in this case does not necessarily support the Central pipe.Element with a honeycomb structure preferably made of corrugated thin metal strip with a thickness of about 0.02 to 0.1 mm Embossed tape passes alternately from the center to the casing and thence back again to the center. With each layer of corrugated ribbon lies on the adjacent layer of tape, so that the formed metal spiral media or evoluntionary patterns with lots of passing in the axial direction of the channels. Loop metal strip, directed radially inward, are its vertex points within the centre, which they can fill out almost entirely. The location of the loops in the center is not necessarily symmetric. Loop directed radially outward bound around loops, directed radially inwards and thereby around the center, allowing it turns out the already mentioned spiral form. The outer sections of the loops are connected with the outer casing by splicing or flush.Given the loop mutual fit of the corrugation is camping one another and to keep the flow channels of a particular cross-section. This can be achieved by applying a special form of the corrugations in the corrugated ribbon, for example according to DE-05 3347086. However, the corrugations can be extruded and at an angle to the direction of the tape. Especially preferred is the deviation from the vertical corrugations with respect to the edge of the corrugated tape 2 of 10o. Then the for loop, respectively zigzag sequential bending corrugated tape corrugations overlap, precluding slippage of one corrugated ribbon in the other.Another possibility to resolve the interpenetration of the two corrugated strips creates the introduction of the separation of smooth ribbons. Preferably corrugated ribbon between two smooth ribbons. When the loop, respectively zigzag laying arranged so smooth and corrugated ribbons smooth tape inside, lies to itself, resulting in embossed tape always relies on such a double layer of smooth tape, and you can choose the smooth ribbon of the appropriate thickness, for example about 0.02 mmIn another preferred embodiment in the element with a honeycomb structure is placed a few and, in the result, each time alternating smooth and corrugated ribbon. As the outer layer is provided correspondingly smooth the tape as otherwise, when the loop, respectively zigzag arrangement of the two sides of the same corrugated tape can lie on one another. With this arrangement, with repeatedly laid one on another smooth and corrugated ribbons can be filled and the larger cross-sectional element with a honeycomb structure without any significant increase in the number of loops or the number of twists around the center.Another possibility branch loop located corrugated ribbons is the introduction of individual sections of smooth strips between layers of corrugated ribbon. In this case, the sheet sections are inserted between layers of corrugated ribbons from both the center and the edges, making the smooth areas of the tape are approximately star-shaped. Lots of smooth tape, directed outwards, woven around the center with loops, directed radially outward and connected to the outer casing by splicing or flush.In order to prevent in the La that impose on each other is smooth and corrugated ribbon. In the vertex points of the hinges to both sides simultaneously with both edges cut off, respectively, are cut in such a way that in the middle of the tape remains only a very narrow bridge. Areas of smooth and corrugated ribbon between the two jumpers twisted 180oaround the longitudinal axis in the direction of the previous section of the tape. In the subsequent loop, respectively zigzag folding of the tape, respectively, overlap each other, one layer smooth and one corrugated layer of the tape.In the method of manufacturing element with a honeycomb structure according to the invention, at least one corrugated metal strip wound in a single or multi-layered hollow coil. This corrugated tape is applied on the winding mandrel, evenly spaced on a circle with an inner diameter D1. The number of layers of winding are obtained from a given thickness and then loops, which in turn depends on a given diameter element with a honeycomb structure. Typically, the number of winding mandrel is chosen so that it corresponds to the number of loops required for the manufacture of a metal carrier to the corrugated tape after weave loops and manufacturing corrugated tape is slid between the winding mandrel to the center of the element with a honeycomb structure. From outside the circular ring of corrugated ribbons down pulling mandrel and tighten them corrugated ribbon to the center, and the winding mandrel elastic buckling, so as not to pull the tape too much. After pulling the corrugated strip having first round shape takes the form of a socket, and the winding mandrels are now on reduced round diameter D2.In the next stage of the technological process of winding mandrels are removed. Radially outer loop entwine around the radially inner loops. This corrugated tape pressed against the respective adjacent layers of corrugated ribbons, resulting in an element with a honeycomb structure becomes a spiral structure with an outer diameter D3. During the weave pulling mandrel serve as support for loops, so they are fixed in the center. In conclusion made so the element with a honeycomb structure is inserted into the casing and connect with him in the dock or flush.This method of manufacture can be modified by moving during the winding corrugated ribbon on the winding mandrel, two smooth vannoy tape does not prevent the interpenetration of the two lying on top of each other the layers of corrugated ribbons, for example, if a simple sine flutes.In the modern automotive industry often requires the use of elements with a honeycomb structure, the shape of which differs from that round. Often used ellipse or stadionallee metal carriers are manufactured in such a way that the center metal of the media is concentrated in the point or circle, and takes a form similar to the line. For example, ellipsometry metal carriers are made so that the radially inner loop is pulled in straight lines, about which connects the two focus of the ellipse. Similarly easily produce other forms of elements with a honeycomb structure, and other geometric designs center adjust accordingly, for example in the form of a curve.But this way you cannot make items with a honeycomb structure special geometric shapes, such as so-called "osteopenia" elements. In order to produce such forms, offers the length of the loops to do is not uniform, but vary it. There is a very simple change the outer form element with a honeycomb structure.Another form of execution of the element with detistov in one casing. This form of exercise can also be carried out using one-piece smooth and/or corrugated ribbon. In this case, create a stack of zig-zag superimposed on each metal strips, which then twist around two fixed points, the result of which get mentioned S-shaped arrangement.Preferred versions of the invention, which, however, is not limited, are presented as examples in the drawings. In particular, it shows:
in Fig. 1 design element with a honeycomb structure according to the invention in cross section;
in Fig. 2 hollow roll in the diagrammatic representation in cross-section, used in its original form to obtain the element with a honeycomb structure according to the invention;
in Fig. 3 part cross-sectional partially deformed star hollow roll according to Fig. 2;
in Fig. 4 the location of the lines of return to obtain the element with a honeycomb structure of the oval cross section of the hollow roll;
in Fig. 5 is a schematic depiction of another example of execution with return lines, distributed on several concentric circles;
in Fig. 6, the uneven distribution of l is IG. 8 element with a honeycomb structure with an uneven cross-sectional shape;
in Fig. 9 corrugated sheet layer with embedded electric conductor, which can be used when creating an element with a honeycomb structure according to the invention;
in Fig. 10 is a schematic depiction of the round element with a honeycomb structure;
in Fig. 11 is a schematic depiction of an elliptic element with a honeycomb structure;
in Fig. 12 element with a honeycomb structure before weaving, loops of different lengths;
in Fig. 13 element with a honeycomb structure after weave, loops of different lengths;
in Fig. 14 corrugated tape with oblique corrugations;
in Fig. 15 bent pile;
in Fig. 16 pile, twisted around the two fixed points;
in Fig. 17 element with a honeycomb structure with twisted plots leaf ribbon;
in Fig. 18 part of the plot sheet tape with a jumper;
in Fig. 19 circular wound corrugated strip;
in Fig. 20 corrugated ribbon is wound in the form of sockets;
in Fig. 21 spiral bound element with a honeycomb structure;
in Fig. 22 circular wound smooth and corrugated ribbon; and
in Fig. 23 corrugated ribbon, vypov cross section of the construction element with a honeycomb structure according to the invention with a circular cross section. Element with a honeycomb structure consists of arranged in the outer casing 1 alternating smooth 3 and 4 corrugated sheet layers. In the inner annular zone 5, there are three or more internal lines 2a, 2b, 2c. return and outer annular zone 6 has the same external lines 7a, 7b, 7c. return. Sheet layers 3, 4 are twisted around these return lines respectively with alternating direction of curvature and are bent between every two lines return, preferably approximately voluntourism. The line of contact between the outer sheet layers with the outer shell 1 can be at least partially connected by high-temperature soldering. In order to avoid overlapping each other sheet layers of the same structure may provide additional intermediate layers 10, which are inserted at an intermediate stage during the deformation.In Fig. 2 shows schematically a cross section of the hollow roll, from which it is possible to make an element with a honeycomb structure according to the invention. In this example, the execution of the hollow roll consists of smooth and corrugated sheet 3 sheet 4, which in turn spiral wound hollow cylinder. This hollow cylinder has come to, giving it a star shape. Under certain conditions it is necessary to prop up the hollow roll inside the lines 7a, 7b, 7c, 7d return, to obtain uniform deformation. As a result of this deformation lines 2a, 2b, 2c, 2d return are located in the inner annular zone 5, and the lines 7a, 7b, 7c, 7d return first form "rays" of the stars. The intermediate condition of receipt of this form is shown schematically by a pulling in Fig. 3. Arrows 8 indicate the direction of movement of lines 2a, 2b, 2c, 2d return inside. If now, as shown by arrows 9, "rays" stars squeeze in a dense body by rotational weave in the same direction of the external lines 7a, 7b, 7c, 7d return in relation to the internal lines 2a, 2b, 2c, 2d return, you get the required form element with a honeycomb structure.In Fig. 4 shows the initial position of lines 7a, 7b, 7c, 7d and 2a, 2b, 2c, 2d of return to education element with a honeycomb structure of the oval form. Points 7a, 7b, 7c, 7d return are not evenly distributed along the inner periphery of the hollow roll and lie at the corners of a rectangle (not a square, as in Fig. 2), resulting in a star-shaped deformation and subsequent interweaving formed an oval cross-section.In Fig. 6 shows schematically, as when a large number of external lines 13a, 13b, 13c. return and internal lines 14a, 14b, 14c and 15a, 15b, 15c. return you can avoid too much internal cavity, if it is undesirable. For this part of the internal lines 14a, 14b, 14c return lies on a circle of smaller radius than the other lines 15a, 15b, 15c return.In contrast, in Fig. 7 is shown as formed hollow interior of the Central area, surrounded by a pipe 17, in which all internal lines 16a, 16b, 16c. return are arranged in a concentric circle inside the inner annular zone 5.In Fig. 8 schematically shows an example of how it is possible according to the invention to fill the uneven cross-section. The internal lines 18a, 18b, 18c, 18d return are unevenly inside, so when the weave can fill in an irregular cross-section.And finally, in Fig. 9 shows, as may be posted by an electrical conductor 43, separated by insulation 45, inside sheet layer, while the sheet is in which is placed an electrical conductor 43. Separate metal sheets can be joined at their ends by connection with brazing.In the described manufacturing process of the element with a honeycomb structure practically nothing change if instead of a simple corrugated layer to apply a double layer with an embedded electrical conductor according to Fig. 9.The present invention is primarily suitable for the manufacture of metal buildings-catalysts carriers for vehicles in mass production, and so manufactured items with a honeycomb structure due to its symmetrical form and through approximately voluntourism passing the layers have a particularly high resistance to thermal alternating loads and high mechanical stresses.In Fig. 10 schematically shows a circular element with a honeycomb structure. In this case, superimposed on each other in the form of loops of sheet layers 3, 4 are located in the inner annular zone 5, which is located coaxially with the center 11 of the element with a honeycomb structure and twisted around the center 11. When this radial inner loop 21 completely fill the center 11. Radial geometric circuit. The element structure with a honeycomb structure approximately spiral, and the spiral originate mainly from round 11. The distance between the spirals constantly, because it is given by the width of the sheet layers 3, 4.In Fig. 11 shows an element with a honeycomb structure of elliptical form. In this case, the sheet layers 3, 4 superimposed on each loop and drawn radially inner loops 21 to prosobranch center 11, which is located in the middle of the element with a honeycomb structure and surrounds the straight line 11, which connects the foci of the ellipse. This inner loop 21 completely fill the center 11. The radial outer loop 22 twisted around the center 11, and the individual layers of the sheets 3, 4 lie on top of each other. The structure element with a honeycomb structure is also a spiral. The number of loops 21, 22 depends on the area element with a honeycomb structure to be completed. In this case, 23 of the internal loops 21 are bent around the pulling mandrel 31 and fastened to the center 11. The number of internal loops 21 respectively pulling mandrel 31 can be increased or reduced in any manner for the whole amount. The outer loop 22 adjacent corrugations of sheet layers 3, 4 to okruzhayuscyem with a honeycomb structure with loops of different lengths before interlacing. When this sheet layers 3, 4, skipped over the winding mandrel 32, involved pulling the mandrel 31 with different intervals, resulting in a range of lengths of the loops. Pulling mandrel 31 to draw prosobranch center 11, and in this example, the pulling mandrel 31 has not reached this center 11. Then the outer loop 22 braid around the center 1 in the U direction of the circumference, and the winding mandrel 32 previously removed.In Fig. 13 shows the "osteopathy element with a honeycomb structure, which is made from the loop located sheet layers 3, 4 as shown in Fig. 12. The center 11 has prosobranch form, contains a straight line 11', which connects the tricks of both hoteleobrotowy ends. Element with a honeycomb structure is inserted into the casing 1 and connected with it by splicing or flush.In Fig. 14 shows a crimped ribbon 4 with oblique corrugations. This bumps 41 are deflected at an angle from vertical of 40 to edges 39 of the tape 4. Due to the inclination of the corrugated tape 4 at the vertices of the loops 21, 22 to each other overlap two layers of corrugated tape 4, in which the corrugations 41 are respectively the opposite direction with respect to noframe 41' of the underlying layer 7 corrugated tape at an acute angle.In Fig. 15 shows a stack of 50 with a zigzag bent to each other by a layer 4 of a corrugated ribbon, which (stack) held between two fixed points 51. The ends of the stack 50 braided in the direction of the circumference around the fixed points 51, resulting in a gain element with a honeycomb structure, the layers which have an approximately S-shaped. Such an element with a honeycomb structure shown in Fig. 16.In Fig. 17 schematically shows a device for manufacturing an element with a honeycomb structure. The device serves corrugated strip 4 and smooth the tape 3. Using the marking device 60 from the edges 39 of the strips 3, 4 are cut down Prosobranchia areas, resulting in the longitudinal axis of the tape 3, 4 only a very narrow bridge 65. Then the sections 61' tapes spin relative to sections 61 tapes 180oaround the longitudinal axis, and jumpers 65 clear of the sides of the spiral. In the device for wrinkling of mutually twisted sections 61 and 61' tapes pile, and jumpers 65 are located at the vertices 66 loops.In Fig. 19 21 shows the manufacture of another element with a honeycomb structure. Corrugated ribbon 4 serves in a device for twisting, consisting of the m winding mandrel 32. At the next stage of the technological process to a hollow roll down pulling mandrel 31 and travel between the winding mandrel 32 to the center 11 of the element with a honeycomb structure. The hollow roll is deformed by pulling circular sectors 20 to form rosettes. When this winding mandrel 32 is moved to the center 11, whereupon the outer diameter D2 of the outlet becomes smaller than the inner diameter D1 of the hollow roll. Winding mandrel 32, located in the radially outer loops 22, delete, while pulling mandrel 31 remain in the radially inner loops 21 and during the subsequent stage weave fixed inner loop 21 in the center 11. After weave pulling mandrel 31 is also removed from the inner loops 21, resulting in an element with a honeycomb structure consisting only of the corrugated tape 4. Corrugated ribbon 4 in the element with a honeycomb structure is a spiral. The outer diameter D3 of the element with a honeycomb structure is less than the outer diameter D2 of the outlet.In Fig. 22 shows the production of another element with a honeycomb structure, in which the corrugated strip 4 and two smooth tape 3 at the same time avivausa in the hollow roll. This bumps the Rhone hollow roll consist of smooth ribbons. The remaining process steps similar to those described in Fig. 20 and 21.In Fig. 23 depicts a smooth tape 3, outstretched in the form of sockets. In between corrugated ribbons 4 inserted smooth sections 70 of sheet metal. Sections 70 sheets are, on the one hand, to the center 11 to the winding mandrel 32, and, on the other hand, from the pulling mandrel 31 to the outside, allowing individual layers of corrugated ribbons 4 are separated from each other every time a smooth section 70 of the sheet. After removal of the winding mandrel 32 outer loop 22 braid around the center 11 in the U direction of the circumference. mm 1. Metallic element with a honeycomb structure with at least partially structured sheet layers, which are curved, in particular approximately voluntourism, from the inner annular zone in the Central zone to the outer annular zone of the casing, characterized in that the sheet layers between the inner and outer annular zones are alternately in one and the other direction and form a loop, and the outer annular zone near the cover element has at least three return line, around which the bound sheet layers.2. Elemere three, preferably four.3. Item under item 1 or 2, characterized in that the inner Central area of the element with a honeycomb structure within the inner annular zone is hollow.4. The element at PP. 1, 2 or 3, characterized in that the element with a honeycomb structure consists of one five sheet strips, which at least partially have a corrugated structure.5. Item one by one from PP.1 to 4, characterized in that the return line are located on two or more konzentrisch circles.6. The element at PP.1 to 4, characterized in that the return line is unequally distributed in accordance with the cross-sectional shape of the element with a honeycomb structure.7. Item one by one from PP.1 to 6, characterized in that the element with a honeycomb structure is surrounded by an external shell and the extreme outer sheet layer at least on some areas of their lines of contact with the casing connected with it high-temperature soldering.8. Item one by one from PP.1 to 7, characterized in that the sheet layers are connected to each other by at least some sections of their lines of contact, preferably in the area of one or both ends, high temperature polnostyu fill the center.10. Item one by one from PP.1 to 9, characterized in that the corrugation of the corrugated metal strip rejected by the angle 2 of 10ofrom the vertical to the longitudinal edge of the metal strip.11. Item one by one from PP.1 to 10, characterized in that a separate smooth or corrugated sheet metal strips inserted between adjacent corrugated respectively smooth sheet layers to avoid the formation of double layers.12. Item one by one from PP.1 to 11, characterized in that the element with a honeycomb structure includes at least one sheet layer, in which is embedded at least one electrically isolated from the leaf layer electrical conductor, made in the form of heating of the conductor or of the measuring sensor.13. Item under item 12, characterized in that the sheet layer with an electrical conductor is a corrugated sheet layer of the two sheet strips between which it is embedded, preferably zavalova, electric Windows Explorer.14. The element at PP.1 to 10, characterized in that the element with a honeycomb structure consists of corrugated and two smooth skin stapler remover tape and corrugated metal ribbon is between the two is the established levels consists of several corrugated and smooth metal strips, moreover, the corrugated metal strip located between the smooth metal ribbons.16. The element at PP.1 to 10, characterized in that between each layer of the corrugated metal strip inserted a separate sheet sections.17. The element at PP.1 to 10, characterized in that the element with a honeycomb structure consists of smooth metal and/or corrugated metal strip, and the metal tape in the vertex points of the loops cut to education narrow jumpers on both edges and areas of the tape is rotated relative to the respective downstream portions of the tape 180orelative to the longitudinal axis.18. Element with a honeycomb structure with a pile of S-shaped spaced sheet layers, wherein the stack is formed of zigzag bent smooth tape and/or corrugated ribbon.
FIELD: heat engineering devices.
SUBSTANCE: the recuperative heat exchanger has rigidly fastened tube plates with tubes installed in them in concentric circles, the tube cavities communicate with one another for supply of the heat-transfer agent, connections for supply and discharge of the heat-transfer agent by means of which the tube cavities are connected, the heat exchanger has intermediate tubes, the cavity of each tube communicates with the cavities of the two adjacent tubes by means of two branches, and the cavities of the delivery and discharge branches communicate with the cavities of the first and last tube of the formed tube coil, the interaxial distance between the last and first tubes in the adjacent concentric circles equals the interaxial distance of the branches, the length of the tubes installed in the adjacent concentric circles differs by the value equal or exceeding the size of the branches fastened on the tubes. Besides, pouring holes are made in the tube plates for communication of the cavities between the plates, the heat exchanger is provided with a perforated or cellular casing and lugs fastened on the plates, it is also provided with a perforated tube with a connection for discharge of the heated heat-transfer agent, it is installed in the holes heat-transfer agent, it is installed in the holes made in the center of the tube plates.
EFFECT: produced recuperative heat exchanger for heat-up of the liquid discharge zone in tanks with petroleum products.
4 cl, 4 dwg
FIELD: heavy industry, applicable for cooling of circulating water of industrial enterprises.
SUBSTANCE: the heat-exchange apparatus has several cooling stages, each of them being made in the form of sections having a zigzag radiator, blow fan supplying the air flow directly to the zigzag supplying pipeline, and offtakes, and the rate of flow of cooling air produced by the blow fan is controlled with the aid of an induction motor fed and controlled by a frequency converter depending on the signal running from the temperature-sensitive element installed past the heater; the cooling stages are changed over with the aid of an automatic cooling water temperature control system.
EFFECT: reduced labor content of production, provided maintenance of the temperature of the heat-transfer agent within a preset range with the aid of a monitoring system.
FIELD: the invention refers to heating engineering and may be used in cooling technique.
SUBSTANCE: the heat exchanger for a refrigerator has a board, a pipeline for cooling medium being in heat conducting contact with the board and a layer of a holding material bounded with the board and the pipeline. The layer of the holding material is of bituminous composition with a stuff, at that the heat capacity of the stuff is larger then the heat capacity of the bitumen. The heat exchanger is manufactured by way of forming a foot consisting of a board, a pipeline and a plate out of bituminous composition, at that out of the plate by heating and pressing the packet they form a layer of holding material. At such execution the heat exchanger may be easily utilized.
EFFECT: provides firm joining of the layers of holding material with the board.
12 cl, 5 dwg
SUBSTANCE: invention relates to the sphere of heating engineering immediately dealing with design of heat exchange elements; proposed is a heat exchanger to be utilised as the evaporator of a refrigerant apparatus such as a household refrigerator or freezer as well as a method for its fabrication. The heat exchanger is fabricated of a support plate, a profiled component manufactured of a thermal insulant and having a groove arranged on its surface and a tube for heat medium circulation that is specially shaped to match the groove path. The heat exchanger fabrication technique envisages the tube being fitted in the profiled component groove and the support plate attached to the profiled component surface the tube is positioned on.
EFFECT: fabrication of high quality heat exchangers even under relatively non-strict requirements to manufacture tolerances.
2 cl, 2 dwg
SUBSTANCE: thermal compression device includes high pressure gas source connected to cylinders-compressors, device for thermal cycling of cylinders-compressors, of the set of capacities with various temperatures and cold source. Cold source in the form of Dewar vessel, which is filled with cooling agent, is located together with capacities with various temperatures on the installation device. Installation device is fixed with possibility of rotation. Low-temperature capacity is heat insulated, filled with liquid heat carrier and equipped with heat exchanger arranged in heat carrier. Heat exchanger is made in the form of a coil with bifilar winding of the tube and with diametre of the forming winding, which is more than the diametre of the circle enveloping cylinders-compressors. One end of the tube is connected through the side output by means of flexible connection and an adapter to Dewar vessel equipped with pressurisation system. The other tube end is led out to atmosphere. Cylinders-compressors and the source of forming the liquid heat carrier flow to capacities are suspended on the cover of the capacity, which is attached to the bracket in upper part of the support of the lifting mechanism. Lifting mechanism is located together with installation mechanism on the platform equipped with devices for its movement and fixture.
EFFECT: simplifying the design, improving the operation and increasing the efficiency of thermal compression device.
3 cl, 6 dwg
FIELD: power engineering.
SUBSTANCE: heat exchanger comprises the first pipe section, helically twisted into the first spiral to let through the first working coolant medium. The first spiral and the second spiral produced from the helically twisted second pipe section are inserted one into the other and connected to each other. Besides, the pipe sections are connected by means of a pipe section stretching between opposite ends of both spirals.
EFFECT: higher efficiency of device application.
9 cl, 12 dwg
FIELD: power engineering.
SUBSTANCE: heat exchanger comprising a twisted pipeline, supplying a fluid working medium to the heat exchanger, a helical axis of horizontal direction and parts of the twisted pipeline arranged on the top and bottom from the helical axis. In accordance with this invention the helical pipeline provides for a double-section passage circuit, besides, the first passage circuit having large dimensions is designed for the working medium of the heat exchanger, and the second smaller circuit of passage is designed as a ventilation circuit. At the same time for each spiral passage in the upper part of the helical axis on a part of the twisted pipeline there is at least one hole for air exhaust, which connect to each other the first and second passage circuits.
EFFECT: provision of maximum possible ventilation for a heat exchanger with a pipeline of twisted type and a horizontal helical axis.
9 cl, 4 dwg
SUBSTANCE: wire-and-tube heat exchanger, in particular, for a domestic refrigerator, comprises two layers of wire and a refrigerant tube passing through the intermediate space between the layers. The intermediate space is filled at least partially with bitumen. The bitumen film is heated and pressed into inside the intermediate space through the gaps between the wires.
EFFECT: improved efficiency of heat exchange between the heat carrying medium and the energy accumulating medium regardless of the mounting position of a heat exchanger, simplified manufacturing.
14 cl, 6 dwg
SUBSTANCE: in the heat exchanging device the finned heat exchanging tube with the diameter d is made serpentine-shaped with an outer finning diameter D and the thickness of the fins L1, located at a distance L2 from each other. The amplitude of the serpentine A on the outer finning diameter is not less than
EFFECT: intensification of heat exchanging due to turbulence in the flow passing inside the finned serpentine-shaped tubes, and increase in the area of heat exchanging of the device.
23 cl, 8 dwg, 2 tbl
SUBSTANCE: group of inventions relates to a refrigerating device and to the evaporator used in such a refrigerating device. The evaporator for a refrigerating device comprises a pipe through which the refrigerant passes. The said evaporator comprises at least one bearing plate on which the pipe is fixed. Between the pipe and the bearing plate a heat-distributing layer is located. The heat-distributing layer is graphitiferous. Also a refrigerating device is disclosed.
EFFECT: group of inventions is aimed at providing good heat exchange between the pipe and the bearing plate, increasing efficiency.
15 cl, 6 dwg