Fitting/manifold attachment and method for its installation for heat exchanger

FIELD: applicable in heat exchangers.

SUBSTANCE: the method for positioning of the fitting relative to the heat exchanger manifold consists in provision of a manifold with a wall having a through hole, provision of a fitting having a base, pipe connection projecting from the base and having an inner surface, and an opening passing through the base for provision of access to the inner surface; insert of the pipe connection in the hole from one side of the wall so that the fitting base would be on one side of the wall, and the pipe union part would be on the other side of the wall; deformation of the inner surface of the pipe connection with the aid of a tool for deformation inserted through the mentioned opening in the mentioned base for expansion of the mentioned part of the pipe connection to a shape which prevents withdrawal of the mentioned pipe connection from the mentioned hole. The fitting/manifold attachment of a heat exchanger includes: a manifold having a wall having a thickness and a hole passing through the thickness from the outer surface of the manifold to its inner part; a hole having a preliminary shape; and a fitting having a base and a pipe connection projecting from the base that can be deformed; a pipe connection having an outer surface, inner surface and a part projecting from the base to a distance exceeding the mentioned thickness of the mentioned wall; the pipe connection is deformed from the first shape to the second shape; in the first shape the outer surface of the pipe union corresponds to the preliminary shape of the hole for provision of a free insertion of the pipe connection into the hole with the part passing through the wall to the inner part of the manifold; in the second shape the mentioned part is increased so as to keep the pipe connection in the hole; the fitting has an opening passing through the base for provision of access to the inner surface of the pipe connection with the aid of a tool for deformation inserted through the opening for deformation of the pipe connection from the first shape to the second shape.

EFFECT: improved fitting/manifold attachment for a heat exchanger.

9 cl, 16 dwg

 

This invention relates to heat exchangers and, in particular, for fastening the fitting/manifold and a method of Assembly for a heat exchanger.

It is known that the technology of heat exchangers are used, the fittings attached to the nodes forming the heat exchanger of the collector, to generate the input or output part, or adapter pipe. Such fittings are often mounted on the reservoir by means of a preliminary positioning of the fitting relative to the manifold so that the fitting hole coincided with the opening of the reservoir. It is known that the holes are aligned with installed in the hole of the fitting or manifold fitting and the subsequent introduction fitting in the return hole. After aligning the holes of the fitting smooth out or bring welded to the manifold to prevent displacement between them. Fastening the fitting to the manifold then assumes the welding process, such as brazing for the formation of a welded joint between the fitting and the manifold. Although these methods of mounting and can be used for the intended purposes, there is always room for improvement.

For example, the process of Stripping and/or prihvatyvaya welding can be long, and privatively welding can change the properties of the material of the fitting and/or reservoir surrounding the weld area.

The nearest Academy of Sciences of the log of the first object of the invention is a method of manufacturing a heat exchanger, including the positioning of the fitting relative to the manifold of the heat exchanger includes a header with a wall having a through hole, and the fitting (JP 6007871, 18.01.1994, p.5).

The closest analogue to the second object of the invention is a method of manufacturing a heat exchanger comprising fastening the fitting/manifold for a heat exchanger containing a reservoir with a wall having a thickness and a hole passing through the thickness from the outer surface of the reservoir to the inner part of the hole with a preliminary form and fitting (JP 6007871, 18.01.1994, p.5).

The main object of the invention is to provide a new and improved fastening fitting/manifold and method of its installation.

In accordance with the first aspect of the invention the method provides for positioning of the fitting relative to the collector. The method includes the steps of providing: a collector with a wall having an aperture; providing a fitting having a base, a socket extending from the base and having an inner surface, and an aperture passing through the base to provide access to the inner surface; inserting the fitting into the hole from one side wall to the base of the fitting would be on one side of the wall and part of the fitting would be on the other side of the wall; the deformation of the inner surface of the fitting with p is the power tool for deformation, inserted through the mentioned opening in said base to extend the mentioned part of the fitting to form, which prevents the extrusion nozzle of the above-mentioned holes.

In accordance with the first aspect of the invention the method further includes the step of welding hard soldering fitting to the manifold.

In accordance with another aspect of the invention mentioned aperture has a Central axis and said step of deforming includes the application of effort the said tool along said axis.

In accordance with the following aspect of the invention mentioned inner surface is a surface of a truncated cone, and the step of deforming includes deforming said surface of the truncated cone to the cylindrical surface.

In accordance with the following aspect of the invention, the above step of deforming includes the increase mentioned fitting to create a landing with tightness between the said socket and the said hole.

In accordance with the second aspect of the invention, the fastening fitting/manifold for a heat exchanger includes a header having a wall having a certain thickness, and a hole passing through the thickness from the outer surface of the reservoir to the inner part of the hole has a preliminary form and the fitting having a base and capable of formirovaniia fitting, extending from the base. The fitting has an outer surface, an inner surface and a part protruding from the base a distance greater than said thickness of the said wall. The fitting is deformed from the first shape to the second shape, the first shape of the outer surface of the fitting nominally corresponds to the pre-shaped holes to allow the fitting to be freely inserted into the hole part, passing through the wall into the interior of the collector, the second form of the said enlarged portion to hold the fitting in the hole. The fitting further includes an aperture passing through the base to provide access to the inner surface of the fitting using the tool for deformation, is inserted through the opening to deform the fitting from the first form to the second form.

In accordance with the following aspect of the invention the said hole is circular and the outer surface of the fitting is cylindrical.

In accordance with the following aspect of the invention the inner surface of the nozzle has the shape of a truncated cone.

In accordance with the following aspect of the invention, the socket has an open end.

In accordance with the following aspect of the invention, the socket has a closed end.

Other objects, advantages and features of the invention, Boutonnat from the following detailed description, performed together with the drawings, the previous entry and the subsequent formulas.

Figure 1 - front View of the heat exchanger, including mount fitting/manifold made in accordance with the present invention.

Figure 2 - Exploded image view in section, taken along the line 2-2 in figure 1.

Figure 3 is a View in section, taken along the line 2-2 in figure 1.

4 is a View taken along the line 4-4 in figure 3.

5 is an Enlarged detail view indicated by line 5-5 on Figure 3, showing the fitting in the first position.

6 is a View similar to the view of Figure 5, showing the fitting in the second position.

7 is a General view of another variant of the fitting shown in figure 1.

Fig View taken along the line 8-8 7.

Fig.9 is a side View of the fitting shown in figure 5.

Figure 10 is a top View of the fitting shown in figure 5.

11 is a View similar to the view of Fig, showing the shape of the extruded profile, which should be used for the manufacture of the fitting shown in Fig.7.

Fig view of another variant of the fitting shown in figure 1.

Fig - side View of the fitting shown in Fig.

Fig and 15 Views showing the tool used for fitting depicted in Fig and 13.

Fig Enlarged view of the fitting shown on Fig and 13, showing the fitting in the deformed position.

The difference is examples of installation of the fitting on the manifold shown in the drawings in connection with the heat exchanger of parallel flow 20, including a pair of long branched pipelines in the form of a tubular cylindrical reservoir 22; one or more fittings 24 attached to at least one of the collectors 22; many of multichannel tubes 26 that extend between the manifolds 22; and seaviewing ribs 28 (shown schematically in figure 1), passing between adjacent pieces of pipe 24. It should be clear that the invention may find application in other forms of heat exchangers that use other types of collectors, ribs, heat exchanger tubes or pipes, such as, for example, a cylindrical tube heat exchanger, plate fin heat exchangers coil type, etc. Besides, it is not necessary that the collectors were cylindrical in cross-section, the lights may have a complex structure, like the tank, attached to the manifold. Therefore, for specific forms of the heat exchanger or manifold there are no restrictions.

Figure 2 shows that the manifold 22 includes a wall 30 having a circular hole 32 passing through the thickness of the wall 30 from the side 34 to the other side 36 of wall 30. The wall 30 separates the internal volume 38 in the manifold 22 from external 40.

The fitting 24 includes a base 42 and socket 44 having a cylindrical outer surface 46 extending from the base 42. The portion 48 of the fitting 44 extends from the base 42 by a distance D, to the / establishment, which more than the wall thickness. The open end of the fitting 44 includes a circular opening 49. The cylindrical outer surface 46 corresponds to the circular shape of the opening 32, to allow the fitting 44 to be freely inserted into the hole 32 so that the portion 48 has passed the inner space 38 of the manifold 22, as shown in Figure 3. The fitting 44 has an inner surface 50 nominally shape of a truncated cone converging as the distance from the base 42 to the opening 49, and the inner surface 50 forms a truncated cone centered on the axis 52. The base 42 includes an aperture 54 nominally cylindrical shape, extending through the base 42 to provide access to the inner surface 50. The aperture 54 is centered on the axis 52. In the implementation shown in figure 2 and 3, the base 42 also includes an outer thread 56, which allows the pipe or pipeline (not shown) to be attached through passage 58 formed in the opening 54. A pair of flanges 60 and 62 of the hexagonal shapes are adjacent to the fitting 44 and the threads 56, respectively. The flanges 60 and 62 can be put into engagement with a tool such as a wrench (not shown)for resisting torque coupling devices, sitting down on the thread 56. Thread 56 and the flanges 60 and 62 centered on the axis 52. Essentially a cylindrical punch 64 to join Phi is Inga 24 to the reservoir 22. Punch 64 includes a lug 66 forms a truncated cone, which passes into the section 68 has a cylindrical shape and the groove 70.

To attach the fitting 24 to the collector 22 of the fitting 44 is inserted into the hole 32 so that the portion 48 has passed through the wall 30 of the inner space 38 of the manifold 22, as shown in Figure 3. Then the punch 64 is inserted through the opening 54 in the direction of the arrow And along the axis 52 so that the tip 66 in the form of a truncated cone gears inner surface 50 forms a truncated cone. Then the punch 64 is pushed in the direction of the arrow And along the axis 52 to deform the inner surface 50 by gradually entering into contact with the conical tip 66 and a cylindrical section 68 with the surface 50. This operation causes the inner surface 50 in the form of a truncated cone continuously and irreversibly deformed to the cylindrical surface 50', as shown in Fig.6. The deformation of the inner surface 50 causes permanent deformation of the external surface 46 so that it diverges socket to form a truncated cone, as shown in Fig.6. The resulting extension part 48 eliminates pulling the nozzle out of the hole 32, as part 48 is wider than the hole 32.

As well shown in Fig.6, in some applications, the hole 32, the outer surface 46, the internal p is the surface 50, conical tip 66 and section 68 should be handled in size to one another so that then the end portion 48 is deformed when using the punch 64, the outer surface 46 had a tight fit around the circumference of the hole 32 and the wall 30 captured between the flange 60 and the surface 48.

After the fitting 24 is fixed relative to the manifold 22 through the deformation of the end portion 48 of the punch 64, the fitting 24 may be welded to the manifold 22 to create a welded joint between the fitting 44 and the hole 32, using an appropriate welding technology, such as the corresponding induction brazing.

Another implementation of the fitting 24 is shown in Fig.7-10 and is defined as 24'. The fitting 44' in this version is identical to the fitting 44 of execution, shown in figure 1, including an aperture 49, part 48, the inner and outer surface 46 and 50. The performance of the base 42', shown in figure 4, differs from the base 42, as shown in figure 1. Namely, the base 42' is in the General case of rectangular form with a part in the form of the seat 80 having a pair of surfaces 82 that nominally meet the outer surface of the wall 30, as shown by the dotted lines on Fig. The surface 82 separated by a channel 84. Flat surface 85 is located at the intersection between the base 42 and socket 44'. As clearly seen in Figure 9, the and side of the base 42' is provided by a flat surface 86, opposite the fitting 44' and the seat 80. A threaded hole 88 in the surface 86 for engagement with a fastener (not shown) of connecting device (not shown), which connects a pipe or a pipe with a cylindrical passage 58'made in the cylindrical opening 54.

Although the performance of the fitting 24', shown in Fig.7-10 may be manufactured using a suitable manufacturing process, such as casting, injection molding of metal or by machining, it is preferable that the fitting 24' was machined using a milling head and then face milling cutter, as shown by the dotted lines 92 and 94 in Figure 10.

The fitting 24' attached to the manifold 22 with a punch 64 and method described above for the fitting 24. The fitting 24' is fixed relative to the manifold 22 by means of deformation of the part 48' by means of the punch 64; fitting 24' may be attached to the manifold 22 to create a binding connection between the fitting 44' and the hole 32 using a suitable welding technologies, such as the corresponding induction brazing. In addition, the surface 82 of the seat 80 are fixed on the surface 34 of the manifold 22 by means of an appropriate welding technology, such as a suitable brazing. In some applications it is desirable to connect the surface and 82 and 34, and the fitting 44 with a hole 32 essentially simultaneously, using the same welding technology.

Fig is a perspective view of another variant of the fitting 24. This performance is indicated by the position 24" and is identical to the performance of 24', shown in Figure 5-8, except for two changes fitting 44 and one change of base 42. Namely, as clearly seen in Fig 13, the fitting 44 of the fitting 24 has a closed end 98 in contrast to the opening 49'shown in Fig.7-10. In addition, as clearly seen in Fig, the inner surface 50 is cylindrical in its undeformed position, in contrast to the surface 50'having the shape of a truncated cone, shown in Fig.7-10. And finally, a cylindrical hole 100 through the base 42" to the extreme surface 102 and is connected to the aperture 54. A hole 100 is designed to receive a connecting pipe (not shown), which may be secured in the hole 100 through the use of appropriate technology, such as welding hard soldering to create a welded joint. As shown in Fig and 15, and the firing pin 104 is required for irreversible deformation of the edge 48". The head 104 has four tabs 106, which are made on the striker for radial outward exposure in the direction perpendicular to the axis 52". After fitting 44 is inserted into the hole 32, and the firing pin 104 p is meshaetsia in the aperture 54 and the four tabs 106 exert a radial pressure to the outside for an irreversible deformation of the inner surface 50" to shape, shown in Fig. Then the tabs 106 radial pulled inside, and the hammer 104 is removed from the aperture 54". The die 104 is preferred for fitting 24"because the closed end 98 of the fitting 44 will prevent the movement of the tip 66 of the punch 64 past the surface 50". The fitting 24" can then be secured to the manifold by the method described for fitting 22'. Although the preferred material of the fitting 24 and the collector 22 is aluminum, any other suitable material, is exposed to permanent deformation, can be used for fitting 24, and any suitable material can be applied in the reservoir 22 for all versions of the fitting 24 shown in figure 1 to 16, in accordance with the requirements in each particular case of application. Although it is preferable that the hole 32 was round, fitting 44 had a cylindrical outer surface 46, in some cases, these goals may be desirable to use parts of other shapes. Although it is preferable that the hole 32 and the surface 46 has the appropriate shape, in some cases it may be advantageous that the hole 32 and the surface 46 at least partially correspond to each other.

For all variants of the fitting 24 shown in Figure 1-16, it must be borne in mind that, by deforming the inner surface 50 of deforming Probolic is 64 or brisk 104, inserted through the base 42 of the fitting 24 on one side of the manifold 22, the fitting 24 should be attached to the manifold 22 without access to the fitting 24 on the opposite side of the manifold 22.

1. The positioning of the fitting relative to the manifold of the heat exchanger, comprising the steps:

providing the collector with a wall having a through hole;

providing a fitting having a base, a socket extending from the base and having an inner surface, and an aperture passing through the base to provide access to the inner surface;

the insertion of the fitting into the hole from one side wall to the base of the fitting would be on one side of the wall and part of the fitting would be on the other side of the wall.

the deformation of the inner surface of the fitting tool for deformation inserted through the mentioned opening in said base to extend the mentioned part of the fitting to form, which prevents the pulling mentioned fitting of these holes.

2. The method according to claim 1, further comprising the step of welding hard soldering fitting to the manifold.

3. The method according to claim 1 where the above-mentioned aperture has a Central axis, and said step of deforming includes the application of effort the said tool along said axis.

4. The method according to claim 1 where the mentioned inner surface is a surface of a truncated cone, and the step of deforming includes deforming said surface of the truncated cone to the cylindrical surface.

5. The method according to claim 1, where the said step of deforming includes the increase mentioned fitting to create a landing with tightness between the said socket and the said hole.

6. Mount fitting/manifold for a heat exchanger, including

a manifold having a wall having a thickness and a hole passing through the thickness from the outer surface of the reservoir to the inner part of it; the hole having a pre-form; and

the fitting having a base and is able to deform the fitting extending from the base; a nozzle having an external surface, an internal surface and a part protruding from the base a greater distance than said thickness of the said wall; fitting is deformed from the first shape to the second shape; in the first form the outer surface of the fitting nominally corresponds to the pre-shaped holes to allow the fitting to be freely inserted into the hole part, passing through the wall into the inner part of the collector; the second form are referred to the enlarged portion to hold the fitting in the hole; fitting further includes an aperture passing through the base to provide access to the inner surface of the charge port of the and using the tool to deform, inserted through the opening to deform the fitting from the first form to the second form.

7. Mount fitting/manifold according to claim 6, where the said hole is circular and the outer surface of the fitting is cylindrical.

8. Mount fitting/manifold according to claim 6, where the inner surface of the nozzle has the shape of a truncated cone.

9. Mount fitting/manifold according to claim 6, where the socket has an open end.

10. Mount fitting/manifold according to claim 6, where the fitting has a closed end.



 

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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.

2 dwg

Spacer plate // 2259530

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

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