SUBSTANCE: invention relates to heat engineering, namely, to plate-type heat-exchangers. The heat-exchanger consists of a core enclosed in a shell with upper and lower walls and a pair of opposite side walls. The heat-exchanger housing contains upper plate being adjacent to the upper wall and lower plate being adjacent to the lower wall and a pair of side plates adjoining each of side walls. In addition, the upper plate is attached to the lower plate and side plates are interconnected. So the housing plates are interconnected by means of threaded fastenings and include spaced pins. Besides, the side plate pins are placed between the upper and lower plates pins.
EFFECT: reduction of heat-exchanger production and assembling costs due to support housing strengthening and using less strong and less expensive shell.
19 cl, 6 dwg
The technical field
The present invention relates generally to heat exchangers and, more precisely, to plate heat exchangers.
At least some conventional heat exchangers can be classified into two categories: tubular heat exchangers and plate heat exchangers. Traditional plate heat exchangers are manufactured by blending a variety of plates having such a configuration that the two fluids, one of which is relatively hot and the other is relatively cold, can pass between alternate channels, restricted plates.
Plate heat exchangers can be divided into two categories, namely, heat exchangers, sealed with gaskets and welded heat exchangers. Heat exchangers, sealed with gaskets, can provide access to the plates for cleaning, lower thermal stress and the cost per unit area. However, the use of gaskets imposes some limitations with regard to temperature, pressure and compatibility with your liquids. One of the problems encountered in existing welded heat-exchange units, is the existence of large thermal stresses that can lead to shorter equipment life. Large proizvodstvennaya separation is relatively hot and relatively cold fluid using traditional welding operations represent another potential drawback.
Brief description of the invention
The heat exchanger may include a housing and a core with a shell. The shell may have an upper wall, a lower wall and a pair of opposed side walls connecting the top and bottom walls for the formation of at least part of the fence, in which may be placed in the liquid. The housing may have a top plate adjacent to the top wall, the bottom plate adjacent to the bottom wall, and a pair of side plates, each of which is bordered on one of the side walls. The top plate can be connected with the lower plate, and side plates can be connected to each other to maintain the top wall, bottom wall and side walls of the shell. Support provided by the body, can, at least in some applications, to allow the use of less durable and less expensive shell.
In one embodiment, preferred at the present time, the core of the heat exchanger includes top and bottom walls and a pair of side walls connecting the top and bottom walls, and the housing surrounds at least a section of each of the upper and lower walls and side walls. The casing may consist of a number of plates connected to each other with the possibility of separation to ensure access to the core if desired. This embodiment allows and shall prepare the wall by flame cutting instead of the traditional mechanical processing. Of course, there can be used other execution, modification and/or replacement in accordance with the desired characteristics for a particular application.
Brief description of drawings
These and other objectives, features and advantages of the present invention will become apparent after the following detailed descriptions of preferred options accomplishments and best version of the attached claims and accompanying drawings, in which:
1 shows a perspective view of one preferred in the present variant implementation of the heat exchanger;
figure 2 shows a top view of the heat exchanger of figure 1;
figure 3 shows a side view of the heat exchanger of figure 1;
4 shows an end view of the heat exchanger;
figure 5 shows a perspective view of the core welded plate heat exchanger, which can be used in the Assembly shown in figure 1; and
figure 6 shows in perspective the local neckline core figure 5, showing the area of the plates in the inner space of the core.
A detailed description of the preferred embodiments
Referring to the drawings more in detail, figures 1 to 4 shows one variant of implementation of the heat exchanger 10 includes an external support body 12 and the inner core 14. The heat exchanger 10 is shown as the plate is loebmann, rectangular core 14, although other shapes and configurations. The purpose of the drawings and this description is to show illustrative embodiments of the invention and not to limit in any way the construction, location or method by which the invention is implemented.
As best shown in Figure 5, the core 14 comprises an outer shell 16, consisting of a main intake manifold 18, a main exhaust manifold 20, an auxiliary intake manifold 22, which forms the site of one of the side wall 24 of the shell 16 or fully this wall, additional exhaust manifold 26, which forms the plot of the other side wall 28 of the shell or fully this wall, the upper wall 30 and lower wall 32. The reservoirs 18, 20, 22, 26 and the walls 30, 32 are connected to the fence Assembly of the plates 31, part of which is shown in Fig.6. The reservoirs 18, 20, 22, 26 and the walls 30, 32 can be welded to each other to form at least essentially complete fencing. Additional intake and exhaust manifolds 22 and 26 and the walls 30, 32 can be an essentially flat plate, providing the shell 16 is essentially in the form of a box or a rectangular parallelepiped.
As best shown in Fig.6, the internal device is the creation and design of the core 14, including the Assembly of the plates 31 may be essentially the same as described in U.S. Patent No. 6516874, the description of which is incorporated fully herein by reference. Usually the inside of the shell 16 are lots of tapes, each of which is denoted by the reference position 34, which form part of the Assembly 31 of the plate pack. Each cassette 34 is composed of two rectangular heat transfer plates 36 and 36A, the Central section of the housing each of which is equipped with a number of parallel and inclined bumps or indentations. When forming cartridge 34 a of the heat transfer plates 36, 36A is rotated 180 degrees and flipped to one of the plates superimposed on top of the other. As can be seen in Fig.6, this forces each of the corrugations of the heat transfer plates 36, 36A to cross each other with a constant angle and to provide a number of parallel directed at an angle of external ridges 38 and inner ridges 40 for each of the heat transfer plates 36, 36A.
As can be seen in Figure 5 and 6, the cassette 34 inside the core of the heat exchanger 10 determine the main channels 42 for the flow of primary fluid and secondary channels 44 for the flow of additional fluid. The primary fluid enters the heat exchanger 10 through the main inlet pipe 45, which is rigidly connected to the intake manifold 18 of the arcuate shape. The main liquid goes black the C main discharge port 46, which is rigidly connected to the exhaust manifold 20 of the arcuate shape. Accordingly, the principal liquid, a part of the heat exchanger 10 through the main inlet pipe 45, passes through the main channels 42 and exits the heat exchanger 10 through the main discharge nozzle 46. Additional fluid enters the heat exchanger 10 via the auxiliary inlet connection 47, passes through additional channels 44 and out through the additional outlet nozzle 48. It is obvious that the inlet pipe 47 and the outlet 48 are rigidly connected to an auxiliary intake manifold 22 and an extra exhaust manifold 26, respectively.
As shown in figures 1 to 4, the support body 12 includes opposite upper and lower plates 52, 54 and a pair of opposed side plates 56, 58, all of which are located near the outer surface of the shell 16 of the core 14. Plate 52-58 preferably connected to each other and are hard, so that the supporting body 12 is rigid and resists deformation in the Assembly and can prevent improper expansion, at least sections of the shell 16. The housing 12 preferably supports at least the area of the three sides of the shell 16 and preferably a substantial area (for example, more than half of the surface area) three or more sides of the shell 16. This allows yet make the shell 16 of the core of a more subtle or less durable material. In at least some embodiments, this may reduce the cost of Assembly of the heat exchanger, as, for example, the material of the shell which is in contact with the liquid, as a rule, is a relatively expensive material such as stainless steel, and may need less of this material. The supporting body 12, on the other hand, is not in contact with the fluid and can be made of less expensive carbon steel. Additionally can be reduced machining and welding, and the base plate 52-58 can be obtained by flame cutting or other means) and can be relatively unprocessed, thereby further reducing the cost of manufacture and Assembly of heat exchanger 10.
A pair of opposite upper and lower plates 52, 54 and a pair of opposed side plates 56, 58 can be connected to each other for the formation of at least essentially complete fencing that hosts the core 14. In one preferred in the present embodiment, the multiple connection devices 60 are used for detachable connection of adjacent plates to each other so that the housing 12 can be disassembled and extract the core 14 for repair or replacement on a new core. In the shown embodiment, the connecting device 60 includes the t fingers, spaced along the plate 52-58, and the connectors 64, which are connected to each other, the fingers of adjacent plates. Because of the relatively large number of fingers and connectors in this embodiment shown in the drawings, not all of these parts are marked on the drawings. Instead, to facilitate review and understanding of the drawings in the drawings, given only an exemplary number of such parts.
More specifically, as best shown in Figures 1 to 3, the upper and lower plates 52, 54 may be of identical design. Plates 52, 54 may be essentially flat, with the fingers 66 are posted and pass outward from opposite sides of each of the plates 52, 54. The fingers 66 on one side of the plates extend away from the fingers 66 on the other side of this plate, and the plates 52, 54 can preferably be located so that the fingers 66 on the upper plate 52 are aligned with the fingers 66 on the bottom plate 54. Each finger 66 preferably has at least one through hole 68. Apertures 68 aligned in the fingers 66 of the upper and lower plates 52, 54 are aligned to pass through connector 64, so that the aligned fingers 66 can be connected to each other. As shown, the connector 64 may include a rod 70 having ends 72 are threaded, and a nut 74 can be tightened on each end 72 of the rod 70.
Side plates 56, 58 may be identical and so doctitle design such upper and lower plates 52, 54, but are located near the side walls 24, 28 of the core 14. Side plates 56, 58 include the fingers 76, passing out, and the fingers 76 on one side of the plate 56 is aligned with the fingers 76 on the other side of the plate 58. The fingers 76 of the side plates 56, 58 are also preferably include at least one through hole 78, and the holes 78 in the fingers 76 of one of the side plates 56 are aligned with the holes 78 in the respective fingers 76 of the other side plate 58 to provide a connection of the fingers 76 of the side plates 56, 58 to each other. The fingers 76 of the side plates 56, 58 preferably are placed in the gaps between adjacent fingers 66 of the upper and lower plates 52, 54 and inserted between them. The fingers 76 of the side plates 56, 58 may be held at right angles to the fingers 66 of the upper and lower plates 52, 54. The rods 70 can pass through the holes 78 are aligned fingers 76 of the side plates 56, 58, and a nut 74 is preferably tightened on each end 72 of the rod 70.
Thus, the connectors 64 clamp the aligned fingers 66 of the upper and lower plates 52, 54 to each other against the adjacent walls or surfaces of the core. Similarly, the connectors 64 clamp the aligned fingers 76 of the side plates 56, 58 to each other against the adjacent walls of the core. In one embodiment, preferable on toadie time side plates 56, 58 do not touch the upper and lower plates 52, 54. All the boundary between the two plates may be provided with a clearance in a quarter of an inch so that the clamping force applied to the shell and not to the adjacent panels. As an alternative example, the plates 52, 54, 56 and 58 can be hooked to each other and positioned end-to-end with the core to prevent unwanted expansion of the core or the occurrence of stress.
So all plates 52-58 are connected to each other and can be separated by removing the nuts 74 to provide access to the core 14. The rods 70, connecting with each other, the side plates 56, 58 can be done in parallel upper and lower plates 52, 54 and beyond. The rods 70, connecting with each other of the upper and lower plates 52, 54 may be parallel to the side plates 56, 58 and beyond. The ends 80, 82 of the housing 12 can be opened to allow passage through one or more inlet pipes 45 and outlet pipes 46 for connection with suitable pipes or similar items. Otherwise, one or all of the ends 80, 82 may be blocked and supported by individual plates or sections of the top, bottom or side plates, which are near the ends. Therefore, the supporting body 12 in the shown embodiment provides gestco the support for the four sides of the shell 14. Support can be installed to a greater or lesser number of sides depending on the requirements for a particular application, and, for example, through one or more plates of the support body can be made holes for the inlet and outlet pipes, or other devices if necessary.
The anchor body 12 can be placed on one or more brackets 90 to facilitate the joining of the heat exchanger 10 to another structure and its disengagement from. The brackets 90 may include passing out of the leg 92, and preferably spaced along the length of the heat exchanger 10.
The above description of the individual variants of the invention is only explanatory and, therefore, their changes, modifications and/or replacement should not be considered as departing from the essence and scope of the invention. As a non-limiting example, despite the fact that the supporting body 12, shown and described in an exemplary embodiment, can be disassembled and removed from the core 14, the support body 12 may be welded or otherwise more or less permanently assembled, providing limited access to the core 14, or not providing access. Additionally, although shown and described, the housing 12 includes a metal plate, the area of the support housing 12 or the entire bearing housing can be made the C other materials in accordance with the desires for a particular application. Installation or Assembly according to the present invention may have any one of the foregoing features and/or advantages, to have some or all of them. What options, preferred at the present time, include the specific grounds mentioned herein above, should not mean that all the variants of the present invention must have such features.
1. A heat exchanger containing a core comprising a shell having many sides, and at least one channel for fluid, which circulates the liquid; a housing surrounding at least a section of each of the at least three sides of the shell remote from them, to maintain at least three sides of the shell against the pressure of the fluid therein, the housing includes a pair of opposing plates, each of which includes a multitude of fingers, with the fingers of one plate of a pair of opposite plates aligned and connected with the fingers of the other plate of the pair of opposite plate.
2. The heat exchanger of claim 1, wherein the housing includes two opposing pairs of plates, the fingers of the plates in one of the opposite pairs are connected to each other, and the fingers of the plates in the other of the opposite pairs are connected to each other.
3. The heat exchanger according to claim 2, in which the plates of one of the opposite pairs are connected to each other and engage with other plates of opposite pairs, and plates of opposite pairs are connected to each other and engage with the plates of one of the opposite pairs.
4. The heat exchanger according to claim 2, in which at least one of the fingers of the plate in one of the opposite pairs is located between the two fingers of the plate in the other of the opposite pairs.
5. The heat exchanger according to claim 4, in which a multitude of fingers of each plate are located between adjacent fingers of the adjacent plate.
6. The heat exchanger according to claim 1, in which each of the plates comprises at least. one hole, through which passes a connector for connecting the plates to each other.
7. The heat exchanger according to claim 3, in which the connector includes a threaded section and a nut, with the possibility of separation, is placed on the threaded section.
8. The heat exchanger according to claim 7, in which the connector includes a rod having threaded ends and nuts on each end of the rod.
9. The heat exchanger according to claim 3, in which each pair of opposite plates are connected outside of the other pair of opposite plates.
10. The heat exchanger according to claim 9, in which the fingers of each aligned pair of plates held out for an adjacent area of the other pair of opposite plates.
11. The heat exchanger according to claim 9, in which each set of fingers includes a through hole, and the hole aligned with what's fingers opposite each pair of plates are located outside of the other pair of opposite plates, and are designed to receive a connector that is located outside the other pair of opposite plates.
12. Heat exchanger according to claim 11, in which a pair of plates connected to each other with the possibility of separation.
13. A heat exchanger containing a core having a shell with a top wall, bottom wall, and a pair of opposite side walls connecting the top and bottom walls for the formation of at least part of the fence, in which may be placed in the liquid, the housing having a top plate adjacent to the top wall, the bottom plate adjacent to the bottom wall, and a pair of side plates adjacent to each of the side walls, while the upper plate is connected to the bottom plate, and side plates are connected to each other to maintain the top wall, bottom wall and side walls of the shell.
14. Heat exchanger according to item 13, in which the shell is composed of a material suitable for contact with the fluid circulating in the core, and the housing consists of a carbon steel.
15. Heat exchanger according to item 13, wherein the plate body are connected to each other with the possibility of separation.
16. Heat exchanger according to § 15, in which the plates are connected to each other by means of threaded fasteners.
17. Heat exchanger according to item 13, wherein the plate body includes spaced fingers, the fingers of the side of the Plaza is placed in between the fingers of the upper and lower plates.
18. The heat exchanger 17 in which the side plates are fastened to each other and to the core, and top and bottom walls bonded with each other and with the core.
19. Heat exchanger according to p, in which the force of attachment provided with a host of connectors.
FIELD: engines and pumps, heating.
SUBSTANCE: proposed tubular heat exchanger comprises two heat exchanger section tube plates with the holes wherein attached are heat exchanger tubes to form tight joints. The heat exchange tubes fitted into tube plates, the pre-assembled heat exchange section tube plate is directed upward. Note that the anaerobic adhesive is applied on the tube plate outer surface edge and its each extending part in the amount corresponding to the volume of circular gaps between each tube and the mating hole in the tube plate to completely fill the circular gaps. Then, the joints are cured to form a polymer composition in the gap spaces. The said tubular heat exchanger is restored by separating heat exchange tubes from the tub plates and destructing the aforesaid polymer composition in the said gaps. The heat exchange tube and tube plate inner and outer surfaces are cleaned of dirt, worn-out tubes are replaced. Now, the re-assembly of heat exchange tube with tube plates is effected as described above. Similarly, the tubular heat exchanger with soldered, welded or flanged permanent joints can be restored.
EFFECT: simpler assembly and repair of tubular heat exchangers.
9 cl, 14 dwg, 5 ex
FIELD: constructional engineering, pipelines.
SUBSTANCE: methods and devices for channel lead-in of two fluids within multichannel monolithic structure (in monolith), their distribution and lead-out are proposed, where channel apertures being scattered all over the sectional area of the said structure. The said device contains collector head, either monolithic assembly or monolithic complete set, or assembly battery or complete sets, or monolithic block. Moreover, invention features method and reactor for mass- and/or heat exchange between two fluids, the said fluids being distributed through one or more collector heads and assemblies or complete sets, or assembly batteries or complete sets, or blocks.
EFFECT: simple and effective way to supply two various fluids to individual channels within multichannel monolithic structure without pipe application, as well as to connect some monoliths.
23 cl, 18 dwg
FIELD: technological processes.
SUBSTANCE: invention may be used in modernisation of horizontal machines of air cooling with heat exchanging sections that have welded undetachable chambers of rectangular shape. In the back wall chambers form at least one window for access to internal surface of pipes and their cleaning from the products that have been accumulated in the process of air cooling machines operation. The window has circular shape or shape of two circles joined to each other. Centre of circle coincides with axis of one of the openings of tubular grid. Centres of two circles coincide with axes of corresponding openings of tubular grid. Mentioned windows are covered with shields with sealing gaskets made of soft metal or soft nonmetal gasket material. Shields are fixed with the help of threaded plugs that are installed in the openings of back wall, which are closer to the shields.
EFFECT: increase of servicing convenience and machines reliability and increase of service life.
4 cl, 2 dwg
FIELD: heat-exchanging equipment, particularly tube-and-shell heat-exchangers.
SUBSTANCE: heat-exchanger comprises shell adapted to receive the first fluid and deflecting partitions installed at an angle to longitudinal heat-exchanger axis and shaped as quadrants. The partitions guide the first fluid flow into helical structure with uniform velocity. Each partition has corresponding pair of opposite flat or curved sides and a number of spaced apart orifices receiving a number of axial tubes adapted to circulate the second fluid flow. In the second embodiment heat-exchanger comprises quadrant deflecting partitions crossed with tube bundle carrying the second fluid flow and adapted to guide the first fluid flow along helical path across tube bundle. Said heat-exchanger also has reinforcing unit, which selectively unites tube bundle carrying the second fluid flow to minimize vibration and increase supporting thereof. Tube-and-shell heat-exchanger made in accordance with the third embodiment comprises the first row of quadrant deflecting partitions and the second row of quadrant deflecting partitions, which define double helical structure crossed with tube bundle carrying the second fluid flow and extending at an angle to longitudinal heat-exchanger axis to direct the first fluid flow into helical structure with substantially uniform velocity.
EFFECT: improved heat-exchanging efficiency, increased uniformity of fluid flow velocity as fluid flow passes along helical path.
20 cl, 4 dwg
FIELD: heating equipment, in particular, heating systems of buildings operating on hot water, water vapor and other heat-transfer agents.
SUBSTANCE: the heating appliance is made in the form of a section with duct for the heat-transfer agent, formed by ribbed members, each ribbed member represents a plate, one of the plates is made at least with three stepped bulges in the form of pipe connections, whose wider part adjoins the plate, and the ducts for the heat-transfer agent are formed by pipe connections of the adjacent ribbed members inserted in one another, the heating appliance is provided with covers, one of which is connected to the first ribbed member, at the other to the last ribbed member of the section with formatting of mixing chambers, the inlet cover in the direction of flow of the heat-transfer agent is provided with inlet and outlet pipe connections, besides, the inlet pipe connection of the inlet cover is installed with a clearance of 0.9 to 1.3 mm relative to the beginning of the duct for inlet of the heat-transfer agent.
EFFECT: enhanced convective heat exchange of the heat-transfer agent, reduced cost of manufacture, simplified process of assembly.
FIELD: heat power engineering.
SUBSTANCE: device comprises sealing member made of Z-shaped metallic wire grids. The bends of the member are arranged at the sites of diverging and converging of the space between the tube bank and casing of the heat exchanger.
EFFECT: enhanced efficiency.
FIELD: heat exchange apparatus; chemical industry and power engineering.
SUBSTANCE: proposed heat exchange header has body and distributor secured in it and made in form of honeycomb with cells containing one raw of electric rollers secured between bounding grates located at distance exceeding five ball diameters. Provision is made for automatic adjustment relative to external change of flow velocity with no consumption of energy for control and no consumption of liquid in case of change in inlet pressure.
EFFECT: enhanced efficiency.
FIELD: tubes sheets for chemical reactors or heat exchangers.
SUBSTANCE: proposed tube sheet has first and second perforated parts which are made separately and are complementary relative to each other; parts are connected by means of many bolts inserted in respective holes of first and second perforated parts for mechanical connection and forming of tube sheet. Tube sheet for chemical reactors or heat exchangers has first and second perforated parts connected by welding of bolt heads. Tube sheet of chemical reactor or heat exchanger has first and second perforated parts connected by means of many bolts inserted in special holes in first and second perforated parts which are welded together by means of additional welded joints. Tube sheet for chemical reactor or heat exchanger has first and second half-round parts which are connected mechanically. First half-round part has projection and second half-round part has recess for forming connection of these parts.
EFFECT: facilitated procedure of manufacture of tube sheets; low cost.
9 cl, 2 dwg
FIELD: lining apparatuses for plate type heat exchanger, plate type heat exchanger and method for making heat exchanger having pack of heat exchanging plates and end plate.
SUBSTANCE: lining apparatus is designed for heat exchanger including pack of heat exchanging plates and end plate. Said end plate has outer side and inner side turned to pack of plate and at least one opening. In said opening lining apparatus is mounted. Lining apparatus includes first portion made of metal sheet and having, practically cylindrical part of tube and butt zone, and second portion made of metal sheet and having, practically cylindrical part of tube and butt zone. Part of tube of first portion is designed for introducing to said opening. Thickness of material of first portion exceeds that of material of second portion at least in overlap zone. Plate type heat exchanger includes pack of heat exchanging plates and end plate. The last has outer side and inner side turned to pack of plate and at least one opening. Lining apparatus is mounted in said opening. Method for making heat exchanger including pack of heat exchanging plates and end plate. The last has outer side and inner side turned to pack of plate and at least one opening. Method comprises steps of providing first portion and second portion; introducing part of tube of second portion into part of tube of first portion in such a way that to create region where tube portions are mutually overlapped. In said region thickness of material of first portion exceeds that of material of second portion. Part of tube of second portion is joined with part of tube of first portion by means of welded joint.
EFFECT: improved design, enhanced quality of lining apparatus for plate type heat exchanger, simplified process for making lining.
13 cl, 3 dwg
FIELD: heat-exchangers, particularly submersible ones.
SUBSTANCE: heat-exchanger comprises body perforated with orifices located at cylindrical inlet chamber height, tube plate, tube bundle arranged so that coolant is directed transversely to the tube bundle. Heat exchanger also has displacers and spacing grid. Hexahedral collector is formed on tube bundle at inlet chamber height so that the collector is coaxial to the body. The hexahedral collector perimeter is free of tubes. Radial channels extend from collector corners to tube bindle perimeter. The radial channels are also free from tubes. Displacers are installed in spacing grid below inlet chamber.
EFFECT: possibility of uniform coolant flow over each heat-exchanging tube, provision of equal temperature characteristics at each tube outlet and reduced vibration of tubes in tube bundle.
FIELD: heat-exchange apparatus; liquid-to-liquid heat exchangers.
SUBSTANCE: collector chamber of shell-and-tube heat exchanger adjoining the tube sheet of tube bank includes partitions dividing it into supply and discharge compartments; they have U-shaped profile with strip located between its runs; it is made from elastic material; one end of strip is secured on tube sheet and second end is bent at 180 deg. on side of supply compartment.
EFFECT: enhanced operational reliability.
FIELD: heat-power engineering; heat exchangers with mixing of heat-transfer agent flows at different temperatures.
SUBSTANCE: circular partition is provided with circular V-shaped box smoothly perforated over perimeter and located above holes of heat-transfer agent inlet branch pipes; vertex of V-shaped box is rigidly connected with circular partition and end faces of box are tightly connected with inner surface of body and outer surface of casing.
EFFECT: reduced hydraulic resistance at simultaneous reduction of usage of metal.
5 cl, 4 dwg
FIELD: heat-power engineering; power engineering; chemical and oil industries.
SUBSTANCE: proposed chamber is provided with rods having section in form of rectangle; rods are mounted over entire perimeter of tube bank in parallel with tubes; vertices of adjacent faces directed towards each other form diffuser and contraction passages. Vertices of faces of adjacent rods directed towards each other may be rounded-off.
EFFECT: reduced hydraulic resistance and enhanced reliability.
2 cl, 3 dwg
FIELD: heat power engineering.
SUBSTANCE: the inventions are intended for heating water and-or steam and may be used in heat power engineering. The boiler plant contains a cylindrical boiler having one course of gases and an internal cylindrical shielded furnace chamber, an air heater, controlled circuits of heating of a heat carrier and fuels, one and more rows of heat exchange pipes, a ring-shaped cylindrical sectional header and a contact economizer. The finned heat exchange pipes are made U-shaped or coiled and form in the end part of the furnace chamber a radiation-convective beam. At that the gas-tightness of the furnace chamber may be ensured either by heat exchange diaphragms connecting the heat exchange pipes or by a heat exchange cylindrical surface. The heat exchange diaphragms, as well as the heat exchange cylindrical surface, which is sealing the furnace chamber and the convective part of the boiler, are spread to the frontal collector. On the collector there are outlet branch-pipes for withdrawal of the heat carrier, from which it is simultaneously possible to take the heat-carrier of several parameters. The boiler plant is countercurrent in respect to a temperature pressure of the furnace chamber and has one and more supporting devices. The back butt of the furnace chamber serves a part of a heating surface of the air-heater together with a branch-pipe of the outlet of the combustion products. The boiler and its heat-exchange pipes are made with in an series heating of the heat-carrier at the speed of its movement in the heat-exchange pipes of 2.15 m\s. The ring-shaped finned boiler header has sections, which are formed by partitions both blank and perforated, one and more frontal covers, one and more pipe plates, on which the heat-exchange pipes of the boiler are fixed. A part of the partitions is made flat and a part of the partitions is made as a ring or a part of a ring. The external finned frontal side of a collector is a part of the heating surface of the air heater. Inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.
EFFECT: the inventions ensure increased efficiency of the boiler gross load and expansion of its functionalities.
20 cl, 27 dwg
FIELD: the invention is assigned for application in heat-exchange apparatus in particular in chemical and other industries specifically for heat treatment of bulk material.
SUBSTANCE: heat-exchange apparatus has housing, heat-exchange pipes arranged vertically and fixed in pipe grates. Heat-exchange apparatus is provided with discharge arrangement placed under lower pipe grate and composed of fixed and moving plates which have hollow holes corresponding to hollow holes in the lower tubular grate. At that the fixed plate is joined without gap with lower pipe grate and moving plate is installed with possibility to make back-and-forth motion in horizontal plane overlapping size of holes. Moreover the moving plate is installed on vertical flat rings.
EFFECT: allows to expand technological possibilities of using vertical housing tube heat-exchange apparatus for realization of heat-exchange between solid bulk material and liquid or gaseous heat-carrying agent, intensifies heat-exchange and give possibility to regulate this process.
2 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: device has upper and lower pipe-shaped collectors, made of aluminum profile, connected to row of vertical ribbed aluminum recorder pipes via short pipe elements, hermetically fixed on one side by press mounting in recorder pipes, placed between pipe element end projecting into hollow of collector and its input into collector aperture, while each pipe element is made in form of barrel, having conical and cylindrical portions, on outer surfaces of which at least one ring-shaped recess is made, in place of transfer of cylindrical portion to conic portion a special piece is made, placed between end of recorder pipe and collector, and compacting element is made in form of transfer cone pressed into edge of input aperture of transfer cone collector, mated with flat ring-shaped surface of special piece and cylindrical surface of barrel, projecting end of which is made open by access from the side of conic portion of barrel. Upper and lower collectors in places of barrels connection have longitudinal flat portions, thickness of which is greater than thickness of walls of round section, and ribbing of each aluminum pipe of recorder is made in form of longitudinal radial plates, placed symmetrically relatively to pipe axis, and face and back surfaces of ribbing form with at least two plates adjacent to them closed air channels, connected to atmosphere at level of upper and lower collectors. Method for mounting recorder pipe in aperture of pipe collector of heating convective radiator is realized by intermediate element, having conic surfaces, by outputting end of intermediate element inside the collector and its resilient depression, while intermediate element is made in form of barrel, having conical and cylindrical portions, inner channel of barrel in zone of outlet of its end into collector hollow is made steeply narrowing, plastic depression is performed by pushing working piston through inner channel of branch pipe on the side of its conical portion until piston falls out into collector hollow, and is then removed.
EFFECT: higher durability and manufacturability.
8 cl, 7 dwg
FIELD: the invention is meant for heat-exchanging and may be used in compact heat-exchangers made of pipes and a housing which are applied at flying vehicles.
SUBSTANCE: the limiter of flow-over of the heat-carrying agent between pipes and the housing in the heat-exchanging apparatus is fulfilled in the form of radial bulkheads installed in parallel to the axis of the housing. The limiter has elements in the form of balls located between the housing, pipes and radial bulkheads, the diameter of elements exceeds the magnitude of gaps between pipes. At that mentioned elements are fulfilled out of polymeric materials.
EFFECT: the invention allows to improve heat-exchanging.
FIELD: placement in structural members of heat-exchange apparatuses.
SUBSTANCE: the spacer plate has a rim with rows of strips made with deepened in the form of circumferences, the dimensions of the circumferences of the arcs of deepenings are made variable with a increase from the periphery to the center of the heat-exchange apparatus.
EFFECT: uniform distribution of flow of the heat-transfer agent in the cross section of the heat-transfer apparatus.
2 cl, 3 dwg
FIELD: heat exchange apparatus; chemical industry and power engineering.
SUBSTANCE: proposed manifold has body with distributor secured on it. Secured to non-magnetic body are magnetic coils; distributor consists of movable and rigidly secured screens made from magnetic material with porous medium placed in between them. Porous medium may be made from foamed plastic and at least 5 rows of elastic balls whose diameter exceeds pitch of screen; it may include at least four layers of ferrite particles at effective diameter equal to diameter of elastic balls.
EFFECT: possibility of performing control of flows in wide temperature range.
4 cl, 9 dwg
FIELD: heat-exchanging equipment production, particularly for power machinery building.
SUBSTANCE: building cradle comprises system including members with support-and-guiding surfaces adapted to temporarily receive support panel for fan engine installation, wherein the support panel is temporarily secured to above support-and-guiding surfaces. The support-and-guiding surfaces are also used to receive support plates to fasten tension bar ends and connection plates arranged between the support plates. Building cradle member for support panel receiving define a circle in plane and has at least one horizontal support-and-guiding surface. Building cradle members for support and connection plates are mainly formed as prisms having trapezoid cross-sections with at least outer inclined face forming support-and-guiding surface to receive support and connection plates of central support member for fan engine installation.
EFFECT: increased manufacturability of gas air-cooling plant production, simplified assemblage, reduced costs and increased reliability and service life of structure to be produced.
10 cl, 6 dwg