CN2773593Y - Heat exchanger - Google Patents
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- CN2773593Y CN2773593Y CN 200520002641 CN200520002641U CN2773593Y CN 2773593 Y CN2773593 Y CN 2773593Y CN 200520002641 CN200520002641 CN 200520002641 CN 200520002641 U CN200520002641 U CN 200520002641U CN 2773593 Y CN2773593 Y CN 2773593Y
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Abstract
The utility model discloses a heat exchanger which comprises two thin plate cavity walls, wherein a sealed hollow cavity body in which media can flow is formed between the inner surfaces of the two cavity walls. Both ends of each cavity wall are provided with medium flow channels which are communicated with the hollow cavity body, and the inner surfaces of the two cavity walls are engaged and fastened mutually through a plurality of pressing die jointing points. The utility model can realize the engagement of the two cavity walls of the heat exchanger through pressurizing technology, and thin walls of the heat exchanger can not be damaged, or a material structure can not have any destructive change. The two walls are jointed stably. The utility model has the advantages of low cost, flexible selection of shapes and materials of the utility model, etc.
Description
Technical field
The utility model is about a kind of heat exchanger, specifically a kind ofly forms cavity, the flat plate heat exchanger that heat conducting medium can flow therein by two thin-walled relative bondings.
Background technology
For transmission medium, have about 1.5 * 10 in the heat exchanger usually
5The pressure of handkerchief.The higher heat exchanger of flow must be able to bear this pressure or higher pressure.Therefore in powerful heat exchanger, often adopt pipeline to come bearing medium, the lamination or the surface of sheet metal are affixed with these pipelines again.By the surface of pipeline, the more important thing is surface by affixed with it lamination or sheet metal, the exchange of heat takes place between the medium of heat exchanger inside and the medium of surroundings.
Because the transfer of heat path length, the heat exchange meeting between this metal sheet surface and medium carrying pipeline weakens the ability of heat exchanger, so people have done many trials, attempt to make the big as far as possible surface of heat exchanger with its inside and outside medium directly contact.For flat plate heat exchanger, this point is particularly important.Flat plate heat exchanger has " chamber of flowing through " heat supply to lead media flow, and its external form is flat relatively.It is long-pending that flat plate heat exchanger has the maximum possible surface area and the minimum contents that contact with inside and outside medium, but problem is inner with outside pressure differential.This pressure differential must be born by plane thin-walled comparatively speaking.We know that two walls of parallel placement are separated owing to the raising of internal pressure.So in flat plate heat exchanger, their inner surface must be engaged (referring to DE-A-197 40818) at multiple spot.The tensile stress of these junction points is considerable.Up to now, in fact have only the welding be considered be used for such sheet metal joint to bear huge tensile stress.
Visible plate-type exchanger is to be bonded with each other by spot welding by two preformed steel plates to form on the market.Its production technology needs steel or special steel (metal of iron content) as raw material.Yet the metal of iron content is not optimal heat conductor.If plate-type exchanger can be made by copper-optimal heat conducting material, must rely on riveted joint and welding.Yet the shortcoming of riveted joint is that two riveting points on the sheet metal all must perforation.Though by huge effort and expensive cost, can guarantee the seal degree of these points, leak source still can inevitably take place after a while, for example causes owing to expanding with heat and contract with cold of sheet metal.Basically also can not realize flexible welding, and flexible pad can only bear very little stress at the inner surface of heat exchanger.The rigidity welding can make raw material annealing on the contrary and become softer.
We know that no matter which kind of sheet metal all can connect (connecting as TOX) by pressing mold is engaged.At first, this pressing mold connection has substituted the spot welding in the auto industry, and it has replaced the riveted joint in the aircraft manufacturing again subsequently.By upsetting pressure technology, sheet metal is engaged securely and its surface is not subjected to any damage or breaks.Utilize simple ring-type formpiston, thin plate to be joined at first is pressed in the former simultaneously.Along with continuing pressurization, the material of formpiston end is pressed towards former end material, and enters wherein, outwards expands along former end material.When the positive deformable material that has enough free spaces to hold in the former to enter wherein, this situation just might occur.Not enough is that this tie point can be flattened once more.Similarly the forward pressing mold connects and can obtain by improved technology.
This pressing mold connects and is used to the parallel connection that stacks sheet metal, shear stress can be connected absorb.Therefore thin-walled can not separated by the stress on its plane.The pressing mold junction point is unknown by the people usually perpendicular to the suction on thin plate plane.It has been generally acknowledged that in the industry it is unsettled that the copper coin that connects by the standard pressing mold engages.It is circular that the standard pressing mold connects, and it is 3,4 that its diameter is taken off your coat, 5,6,8,10 or 12 millimeters.Under different situations, the diameter of steric requirements selection maximum possible is considered in suggestion.
Summary of the invention
The purpose of this utility model provides a kind of plate-type exchanger that has the chamber of flowing through, and can bear the pressure that flows and produce in its internal cavity, as 4,6 or 10 * 10
5Handkerchief, production cost is low, and the selection of its shape and material heat exchanger flexibly.To overcome the above-mentioned defective that existing plate-type exchanger exists.
The technical scheme of the utility model technical solution problem is as follows:
A kind of heat exchanger, comprise two thin plate chamber walls, the hollow cavity of the sealing that the formation medium can flow therein between two chamber wall inner surfaces, wall two ends, described two chamber are provided with the media flow passage that communicates with hollow cavity, it is characterized in that, be meshing with each other fastening by a plurality of pressing molds abutment between the described two chamber wall inner surfaces.
According to the utility model, two walls of heat exchanger the surface is affixed each other within it be by the pressing mold abutment promptly the material deformation of two walls cause the engagement of two walls to realize.This substantial engagement only relies on pressing technology to be achieved, and can not damage its thin-walled or make material structure that any destructive variation be arranged.Such two walls still keep atresia to leak or the crack, even therefore also can not cause seepage when tie point takes place to become flexible.If the thickness of thin-walled material is enough, such abutment can be arranged in a straight line along appearance profile.
The pressing mold binding site i.e. distortion of two chamber wall materials preferably is point-like.The pressing mold abutment can be arranged in rows easily.They are each other at a distance of 10-50 millimeter, preferably 20-30 millimeter.Distance is more little, and it is more little to connect the wall that engages through pressing mold, and the tensile stress that the abutment need be born is also just more little.Internal pressure exceeds external pressure must be many more, and the pressing mold abutment must distribute will be mutually deserved near more.Sheet metal gets the optimum spacing that thickness also can influence tie point.Metallic plate is thin more, and tie point distributes approaching more, to offset the distortion of metallic plate under live load.The meaning of term " point-like material deformation " can be regarded as the regional processed shaping of material a sub-circular, this regional diameter is between 2 to 15 millimeters, preferably between 3 to 8 millimeters, depend on the material thickness of thin-walled to be connected and the stress that expection need be born.When wall thickness is about 0.5 millimeter, inside and outside differential pressure is less than 4 * 10
5During handkerchief, best pressing mold abutment diameter should be 5 or 6 millimeters.Except circle, the distortion of thin-walled can be polygon or ellipse.Usually after the distortion, the material of a slice thin-walled surrounds the material of another sheet thin-walled from behind in the form of a ring.This circle or some pressing mold connect and can bear the surprising tensile stress that vertically acts on the thin-walled planar.The tensile stress at pressing mold abutment produces the tensile stress of ring-type and produce the compression of ring-type on another sheet thin-walled on a slice thin-walled.And because the circulus that pressing mold connects, even crushed element because the pressure of Promotion From Within produces very high stress, can not make connection unclamp yet.With the sheet copper of 0.55 to 0.65 millimeters thick, the pressing mold abutment maximum of each 6 mm outer diameter can produce about 40 kilograms tensile stress.For this reason, two sheet coppers thickness together is forced into 0.35 to 0.45 millimeter.
Deformation point can be aligned to the lattice battle array very easily.The lattice battle array can be leg-of-mutton, foursquare, and hexagon also can be a rectangle.In triangle lattice battle array, equilateral triangle lattice battle array kind especially, the distance between adjacent fastening point is more even than rectangular grid battle array.Stress distribution on the metallic plate is also more even, even the stress distribution that is than fastening point on the metallic plate of square matrices is more even.
As further improvement of the utility model, heat exchanger can adopt high-thermal conductive metal, especially copper.Heat exchanger has at least one side chamber wall to be made by copper coin, and copper plate thickness is 0.3 to 1.0 millimeter, preferably 0.5 to 0.65 millimeter.But under special circumstances, as solar thermal collector, absorbing heat owing to always having in one side, the chamber wall is more favourable with different materials manufacturing meeting.This makes and can select a kind of high thermal conducting material for use and select a kind of low thermal conductance material for use at another side on one side, and still both can be coupled together.Even do not get rid of the possibility of selecting plastics for use.
As further improvement of the utility model, the processing diameter is 6 to 15 millimeters on heat exchanger two walls, and preferably 8 to 10 millimeters circular depressed is favourable.The degree of depth of these depressions is 0.1 to 3 millimeter, preferably 1 to 1.5 millimeter.The external form that caves on two walls is as one, but shaping toward each other.Therefore the depression direction is spaced from each other certain distance toward each other between two walls around these depressions, this distance is equivalent to the twice of cup depth.Depression on relative two walls also can be processed into the different degree of depth, but considers the convenience of processing, is processed into the same degree of depth usually.No matter how two metal thin-walls connect, these depressions all have very big advantage.Just because of these depressions that plays invigoration effect have been arranged, other parts of heat-exchanger surface can expand because of the effect of pressure hardly.
Because these depressions, in fact other parts of chamber wall surface can keep the plane, even heat exchanger is under the situation of bearing pressure or temperature fluctuation.This makes that the light-plated electrolemma becomes possibility on the wall of the one side chamber of flat plate heat exchanger.Because can be cooled off by the heat conducting medium of flat plate heat exchanger inside, even there is the heat input of high radiation, this photovoltaic films still can keep stable work validity.
The utility model can be amounted to the locked heat exchanger made from two independent sheet metals or a big sheet metal of opening, and has and can make infinitely-great advantage.Metallic plate can be processed into the formation grid type before being engaged or amounting to.One side or both sides along its longitudinal extension can be connected by traditional locked and welding method and seal.
Sheet metal as the chamber wall can prefabricated shaping be favourable before connection.Oneself is proved to be the preceding preform of the very favourable a kind of connection of sheet metal the circular depressed of pressing mold junction point.The slightly larger in diameter of this depression is in the diameter at pressing mold abutment.Depression has determined the distance between two walls, and then has also just determined the sectional area of thermal medium by flat plate heat exchanger.And depression has been strengthened the chamber wall of pressing mold join domain.Just because of this reinforcement, the interior pressure that tie point bore only acts on the vertical stress on the metallic plate plane.This reinforcement depression can prevent that metallic plate from twisting at edge, pressing mold abutment.The distortion meeting of this wire chamber wall connects at pressing mold and exists immediately after finishing, and this means that engagement between two walls can respond the process of expanding with heat and contract with cold and fluffs.Because such reinforcement depression is arranged, causing the load on the pressing mold abutment is symmetrically.
As use copper coin, the surface of depression can treated hardness with reinforcing material.This processing mode is meant the surface of friction depression before connecting two walls.Select in addition or as another, the reinforcement of the strength of materials also can be by realizing with the mobile concave face of the fluctuation of heat exchanger internal pressure.Copper product also can be strengthened by autotelic hot/cold processing method.
Be better implement the utility model, can be on two walls with these concave arrangement, and as far as possible accurately back-to-back to putting together.The pressing mold abutment can be near round shape, polygon or oval-shaped point-like, abutment centre thickness is the 0.1-1.2 millimeter, is 2 millimeters to 15 millimeters for the abutment diameter range of sub-circular, and the distance between the center, two adjacent pressing mold abutments is 5～110 millimeters.To the round abutment of 5 millimeters of diameters or 6 millimeters, its recess diameter is 8 millimeters to 10 millimeters, dark 1 to 1.5 millimeter.So just form the chamber of flowing through of one 2 to 3 millimeters thick.Obtain the chamber of flowing through of large-size, the degree of depth of depression should be done suitable adjustment accordingly.For make depression can be mutually to putting, they by linear symmetric shape on metal is rectangular, fold along symmetry axis then.Perhaps, there is depression intentinonally on two metallic plates ground that is mutually symmetrical on processed.
Be better implement the utility model, before pressing mold connected, heat exchanger ground periphery just had been subjected to welding.This has just prevented to change (for copper, per 100 degree temperature difference are stretched over 1.3 to 1.5 millimeters for corresponding every meter) and cause the separation at extraterrestrial confined pressure mould abutment on soldered 270 length dimension of metallic plate when the spending ground that are heated to of material.
Two opposed side edges of the utility model flat plate heat exchanger can be reinforced with acquisition longitudinally by sealed easily, and one of both sides are sealed by welding at least.Limit, two relative tops (end) is as the link of heat conducting medium access way in addition.These both sides are furnished with and the end pipe of chamber wall with material in advance.At this end, wallboard is by drawing or be pressed into the shape of pipeline and be enclosed on the end pipe that slit or boring arranged.Slit or boring and the chamber of flowing through strike up partnership, thereby end pipe inside communicates with the chamber of flowing through of heat exchanger.Then, will hold pipe and metal wooden partition to weld together.The impregnated welding procedure is applicable to this process.The end pipe is firmly being clamped by the metal wooden partition above on the area of its semi-circumference at least.The result holds pipe to be clamped by preformed two 1/4 discs of wall end exactly.It is 9 millimeters to 40 millimeters copper or aluminium end pipe that described end pipe is preferably selected diameter for use, described end pipe is press-fited into stretch out in the semi-circular clamp that hollow cavity surrounds the end pipe, adopts glue laminated to be stained with or to be weldingly fixed between the two chamber walls of hollow cavity then and gets final product.
Each angle of hollow cavity (the flat plate heat exchanger main body except that the end pipe) can closely link together with the end pipe and weld sealing safely by impregnated like this.The end pipe racks has opening, and opening has the neckline that stretches into the chamber of flowing through.This neckline can be stretched by pipe wall material and form.In addition, the end pipe can be done to such an extent that grow one section of housing width, and its openend has a segment distance from the cavity limit, can be used to insert another heat exchanger end pipe (its width is no more than its cavity) to connect both.
The scolder that dipping welding rear end pipe two ends band is wiped clean, and the internal diameter of end pipe is machined into certain size.This size should be complementary with the external dimensions of end pipe connections.This connector has one or two, and preferably two, the O RunddichtringO comes to link to each other with the end pipe end.This connector is used for heat exchanger is inserted certain system.The end face of end pipe can seal with the plug that tap is arranged.Also connector can be become the form of surrounding end pipe end face.Can also increase some T type pipes at the length direction of end pipe, these T type pipes and then can connect by plug type link to each other with other pipelines or the parts of system.
Come each parts of connected system to make member simpler with the plug type method of attachment, assemble quicker.For same purpose, we go back selection standard spare as corner fittings and other connectors, and the simple transformation of existing system.With a thermal-arrest component system that one square metre of collector area is arranged that has five flat plate heat exchangers to be combined into is example, and it is very favourable adopting the plug type method of attachment.This makes being made by manufacturers or users easier, and can realize the provisional installation of collecting system, as is installed on van or the mobile house.When needing transportation, when driving a RV car when you and travel outdoors, this system can be removed soon, and its parts are loaded respectively.This component system can be aided with the collecting system framework, a pump, and in any case a boiler is and the expansion vessel that all needs.
Can adopt conventional point-like pressing mold to be shaped and connect the method for two parallel thin plates for the heat exchanger of media flow for making.The advantage that adopts this method is can weakened or destruction as the structure of raw-material metallic plate.Metallic plate keeps preserving from, so the connection tight ness rating of tie point is guaranteed.Even for the soft alloy plate, as copper coin, to compare with traditional being welded to connect, this kind connected mode can be born the tensile stress that several times vertically act on metal sheet surface astoundingly, and therefore can there be big pressure in the space between two metallic plates.Like this, great majority have cavity and all can be made by copper coin for the slab construction that medium flows therein.It can be made into the tile of catalytic metal crystallizers such as being used for platinum or Distallation systm or whole corrugated plate or heat exchanger, and it can also make the surface of air-conditioning heat dissipation or cooling, waits some specific application.
There is heat conducting medium to flow through in the method for heat exchanger of chamber in manufacturing, two walls are connected to form cavity relatively and flow therein for medium, two walls are affixed mutually at many points of cavity inner surface, verified no matter for the connection of which kind of form, at one side chamber wall at least, preferably to have processed the circular depressed of booster action be very beneficial to the tie point place on the wall of chamber, two sides.Two metal thin-walls mode sealed by material or that shape is sealed in these sunk areas links together subsequently.The heat exchanger of Zhi Zaoing in this way, the size of its chamber wall is highly stable.The distribution of depression preferably becomes lattice battle array shape, and each tie point mutual distance in the lattice battle array should be adjusted according to the thickness and the properties of materials of metallic plate.
Description of drawings
Fig. 1: the pressing mold abutment schematic cross-section between the utility model two sheet metal chamber walls;
Fig. 2: the utility model flat plate heat exchanger schematic diagram;
Fig. 3: flat plate heat exchanger forms the schematic cross-section of hollow cavity;
Fig. 4: the heat exchanger that comprises a pipeline;
Fig. 5:, make the schematic illustration of flat plate heat exchanger by preformed sheet metal according to the utility model;
Fig. 6: in the sheet metal schematic illustration of following junction point shaped depression, depression is that the center evenly distributes with the fold line of metal thin-wall;
The sheet metal of Fig. 7: Fig. 6, it is fastening that folding and part is connected institute by pressing mold;
Fig. 8: the flat plate heat exchanger that the end pipe is arranged;
Fig. 9: the cross section at Fig. 8 heat exchanger pressing mold abutment;
Figure 10: the plug type connector of connection layout 8 flat plate heat exchangers;
Figure 11: a simple hot system;
Figure 12: comprise pump, the hot-water heating system of boiler and expansion vessel.
The specific embodiment
Further specify the utility model below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, shown in Figure 3, the utility model heat exchanger, comprise two thin plate chamber walls 13,15, the hollow cavity 29 of the sealing that the formation medium can flow therein between two chamber wall inner surfaces, described two chamber walls 13,15 two ends are provided with the media flow passage 27 that communicates with hollow cavity, are meshing with each other fastening by a plurality of pressing molds abutment 11 between described two chamber walls, 13,15 inner surfaces.
Pressing mold abutment 11 as shown in Figure 1 is based on the technology in early stage, as spot welding, develops especially for the alternative method of the spot welding of auto industry.By the pressing mold abutment 11 of this type, be parallel to each other and paste two sheet metals of putting 13,15, only need just can realize several seconds that its inner many places connect.Tensile stress and shear stress can be transmitted in this abutment 11.It obtains by exerting pressure to the pressing mold on sheet metal 13,15 both sides.As shown in Figure 1, sheet metal 13 is pressed downward in the corresponding secondary pressing mold by top-down pressing mold.When sheet metal 13 was depressed up, the sheet metal 15 of below was pressed and is made bottom it and outwards protrude.An annular detent and a center projections part are arranged at the secondary mould bottom of pressing mold from top to bottom.Therefore the material that is pressed into secondary mould is pressed in this annular detent, forms the annular section 17 of a thickening.Oneself knows the different pressing mold connected modes that have several results suitable.
Although two pressing molds have and the pressing direction of formpiston is close to parallel die wall, the formation that in two sheet metals, is stamped of the projection of a circular tooth shape.The sheet metal 15 of below surrounds a slice circular foil member 19 that belongs to upper metal thin plate 13 that is depressed with a crenate edge 18.The radius at edge 18 is less than the external diameter of circular foil member 19.Metal disk 19 sides that the pressure of punching course causes being depressed rise.Because its rises towards direction side vertical with pressure, thus it below form a hat 21 on the sheet metal 15.The result be preced with 21 and indenture edge 18 embed mutually by this way.Therefore sheet metal 13 and 15 can be separated under the situation of not damaging thin plate.
Such pressing mold is shaped and connects the manufacturing of energy alinement.For preventing in the use of heat exchanger, the power that produces at hat 21 and 18 places, indenture edge causes sheet metal 13 and 15 to unclamp each other.Pressing mold abutment 11 preferably is point-like or annular.
Figure 2 shows that a slice solar thermal collector 23.It has two copper walls 13 and 15.Can only see wherein one side among the figure.They are linked together by pressing mold abutment 11.Square lattice battle array is lined up at these abutments.Edge 25 is with traditional technology joint and with solder up.Pipeline 27 is welded on relative two jiaos.Two walls 13 are connected by the pressing mold abutment with 15, entirely are close together mutually.Even its two wall also is close together like this after the heat collector manufacturing is finished.Before heat collector 23 was made, when compacting abutment 11, the chamber of flowing through of transmitting heat conducting medium was not expanded.By the heat exchanger that the sheet metal of 0.2 millimeters thick is made, its chamber of flowing through is at four atmospheric pressure, as (4 * 10
5Handkerchief) the meeting spreading forms hollow cavity under.Risen and open along with the chamber of flowing through, two wire chamber walls 13,15 can deform, owing to there is hollow cavity, the external dimensions of heat collector 23 can be dwindled.
Figure 3 shows that by the cross section of the heat collector 23 of the formation hollow cavity of spreading.At the abutment 11, sheet metal 13,15 keeps as far as possible closely linking together.Between Liang Bi, the bulbs of pressure or be used for are measured the test pressure that heat collector 23 engages firmness can force two walls to be opened in 13,15 minutes.Form the chamber 29 (referring to Fig. 9) of flowing through of 13,15 on two walls thus.The chamber 29 of flowing through is very little for the area of heat collector, but in fact it spread all over whole cavity.The thermal-arrest zone can directly be cooled off by the almost any point except that pressing mold abutment 11 at its back side.Yet, because the diameter at pressing mold abutment is very little, about 6 millimeters, so that heat transfer path still keeps is very short.
Figure 4 shows that a heat collector or heat exchanger unit 33, it is made by hollow tube.Edge 35 is formed by the corresponding tube edge of bending.Front and back two walls between the edge 35 are by many pressing molds abutment 11 fluid-tight engagement.The edge 37 at hollow tube two ends is respectively sealed by an extremity piece 39.The input and output channel 27 of medium is received respectively on the two end pieces 39.The distribution at pressing mold abutment 11 lattice battle array triangular in shape.Around each tie point 11 six tie points 11 are arranged.In fact formed an equilateral hexagon.If this lattice battle array deflection 300, the medium that flows through in the cavity 33 no longer for the orthoscopic transmission, replace, medium is bound to walk around tie point 11, and this makes cold, and thermal medium can mix better.
The another kind of feasible method of making the chamber of flowing through is a prefabricated chamber wall.Figure 5 shows that a kind of method, by this method, sheet metal prefabricated shaping earlier is joined together then.Be prefabricated into net form respectively by pressure roller 51, two sheet metals 13 and 15.Next step joins two expanded metal sheets 13,15 together to.Two metallic plates 13,15 are engaged by formpiston 53 at the tie point place.
Prefabricated shaping is proved to be very beneficial around the chamber wall tightens a little.Circular depressed 59 on two walls 13 and 15, its depression direction back side is relative, makes two walls 13 and 15 keep a spatial separation that is determined by depression 59 degree of depth.
Figure 6 shows that a preformed thin plate, it can be folded up along the symmetry axis 61 of the prefabricated depression 59 that is symmetrically distributed.Amount to along symmetry axis 61, depression 59 is engaged with each other, and forms hollow cavity 63 as shown in Figure 7.When making flat plate heat exchanger, the edge 65 of cavity and 67 folds along dotted line, such as vertically folding, not connected then edge 67 is subjected to welding, edge 65 still keeps closure state closely when sheet metal is amounted to, as shown in Figure 6, and do not need to be subjected to welding again.At the two ends of chamber wall surface 69, two walls 13 and 15 by enlarging with tipped end pipe 71 (Fig. 8).After soldered the finishing of end pipe, be pressed into pressing mold abutment 11 in depression 59 center pointwises.
Figure 8 shows that an actual flat plate heat exchanger of making.For the tank 73 that allows end manage on 71 is shown in this figure, a butt pipe 71 is separately illustrated from hollow cavity 63.Copper coin thin-walled 13 and 15 is expanded respectively round about at the place, two ends is split into quadrant.They lump together and form the cross section is the pipeline of semicircle.End pipe 71 is welded on such pipeline.Many openings 73 are bored on the copper end pipe 71.They line up the straight line that is parallel to tubular axis on pipeline, place the chamber 29 of flowing through between two walls 13 and 15.Opening 73 has the cold drawn neckline 75 that goes out.In the heat exchanger of making, neckline 75 is deeply flowed through within the chamber 29, and is soldered on two walls 13 and 15 in the corner regions of heat exchanger hollow cavity 63 at least.
At the edge 77, two walls 13 and 15 and hollow cavity 63 surfaces almost be vertically to link together, and form a kind of reinforcement to hollow cavity 63.Depression 59 is made on two walls 13 and 15 that form hollow cavity 63.These depressions are aligned to the rectangular grid battle array, and spacing is 25 millimeters, and diameter is 8 millimeters.Pressing mold abutment 11 is positioned at the central authorities of depression, and diameter is 6 millimeters.The degree of depth of depression 59 is 1 millimeter, and the width of the chamber 29 of therefore flowing through is 2 millimeters.The outside is of a size of 20 * 100 centimetres heat exchanger, and the capacity of the chamber of flowing through is 200 milliliters, and promptly every square metre of thermal-arrest zone can have 1 liter of heat conducting medium to flow through.
Such heat exchanger in fact can be made into arbitrary dimension.A large amount of productions of standard words size make heat exchanger to be formed the bigger heat exchanger of area by polyphone, or the bigger heat exchanger of a plurality of formation capacity in parallel.By suitable pipeline configuration, single heat exchanger can be together in series or parallel under the prerequisite that does not change connection or shape.
Figure 9 shows that the sectional view at the pressing mold abutment 11 that has depression 59.11 places are pressed into circle at the abutment as the sheet metal 13 and 15 of heat exchange chamber wall.Distortion 59 forms depression on one side of two walls 13 and 15, and another side forms projection, and its joint face 79 is parallel to all the other metal sheet surfaces.The surf zone that recess is expanded increase becomes the supporting surface that chamber wall 13,15 is bonded with each other.It surpasses 1 millimeter of all the other wire chamber wall surface or maximum 1.5 to 2 millimeters because of being forced out.Such depression can be manufactured on sheet metal in enormous quantities with the method for roll-in or compacting separately.The impression deformation on this surface is good, and acts on the intensity that moment of torsion on the material joint face 79 can increase material.The sheet metal that two strengths of materials are enhanced back-to-back with distortion joint face 79 paste put together after, just can implement both connections.Method is with the pressing mold method of attachment of introducing previously or with joint face 79 central authorities of other methods of attachment in this depression both to be coupled together.Depression 59 has guaranteed the existence of certain chamber 29 of flowing through.In addition, the lattice battle array of deformation point distributes and the maximization of abutment 11 spacings, has also guaranteed the heat-exchanger surface size stability.
Pressing mold abutment 11 among Fig. 9 has added accessory 80,82 to guarantee connection.These accessories 80,82nd, brass is done, because brass is harder and lower thermal coefficient of expansion arranged than copper.Disc 80 is press-fited in the indenture at entrance pressure mould abutment 11, and becket 82 is enclosed in and turns up externally, is pressed into the Lower Half at pressing mold abutment 11.Disc and becket are guaranteed indenture edge 18 together and are preced with interlocking between 21.The pressing mold connection of this reinforcing can be born higher variations in temperature and be guaranteed stronger connection power.It can be conveniently used in hp heat exchanger or the temperature difference heat interchanger.
Heat exchanger can be realized by plug-in connector well with being connected of pipeline or adjacent heat interchanger of advancing to backflow.Figure 10 shows that such plug-in connector.Plug-in connector 81 comprises one section pipeline.This section pipeline has two annular grooves, respectively at the two ends of pipeline.In each groove, is furnished with an O type circle 83.The external diameter of plug-in connector and O type circle size with will be complementary by connected end bore.For making plug-in connector 81 insert two end pipes when connecting them, its insertion depth both sides unanimity is provided with a stop ring 85 at the middle part of plug-in connector.This stop ring is realized by magnifying diameter.
The external form of the utility model heat exchanger can be rectangle, square, triangle or other polygons, can also be different shapes such as circle.
Figure 11 shows that a simple hot system.It is made up of four heat collector unit 91 that connect together and a hot water tank 93.Running water is directly heated in heat collector 91.Hot water tank 93 is connected to form a circulatory system with heat collector 91.More the system of simple possible is not furnished with hot water tank 93.Figure 12 shows that a more complicated hot-water heating system, its thermal-arrest circulation 95 separates with running water circulation 97.Thermal-arrest circulation 95 is driven by a pump 99.It has an expansion vessel 101.A heat exchanger unit 103 is placed in the boiler.By this heat exchange unit, heated water sends its heat to running water in heat collector 91.Can find out also that from Figure 11 and 12 collocation method of many different heat collector unit 91 is arranged.
The above is the utility model preferred embodiment only, is not to be used for limiting the utility model practical range.All equalizations of being done according to the utility model scope change and modify, and are the utility model and contain.
Claims (10)
1. heat exchanger, comprise two thin plate chamber walls, the hollow cavity of the sealing that the formation medium can flow therein between two chamber wall inner surfaces, wall two ends, described two chamber are provided with the media flow passage that communicates with hollow cavity, it is characterized in that, be meshing with each other fastening by a plurality of pressing molds abutment between the described two chamber wall inner surfaces.
2. heat exchanger according to claim 1 is characterized in that, described heat exchanger also comprises and is pressed into the metal disc in the described pressing mold junction point concave surface and is enclosed in the pressing mold abutment external becket of compressing into pressing mold abutment Lower Half that turns up.
3. heat exchanger according to claim 1 and 2, it is characterized in that, also include depression on the wall of described chamber in order to the sub-circular of further reinforcing two chamber wall combinations, described abutment is positioned at this depressed area middle part, all leave distance with periphery, depression is back-to-back setting on the described two chamber walls.
4. heat exchanger according to claim 1 and 2 is characterized in that, having a chamber wall at least is copper coin chamber wall, and described copper coin chamber wall thickness is the 0.3-1.0 millimeter; Described pressing mold abutment is a sub-circular, and the diameter range at abutment is 2～15 millimeters, and abutment centre thickness is the 0.1-1.2 millimeter; The distribution of described pressing mold binding site can be capable shape, rectangle, hexagon or rounded projections arranged, and the distance between the center, adjacent pressing mold abutment is 5～110 millimeters.
5. heat exchanger according to claim 3, it is characterized in that, having a chamber wall at least is copper coin chamber wall, described copper coin chamber wall thickness is the 0.3-1.0 millimeter, the described circular depressed degree of depth is the 0.1-3 millimeter, described pressing mold abutment is a sub-circular, and the diameter range at abutment is 2～15 millimeters, and abutment centre thickness is the 0.1-1.2 millimeter; The distribution of described pressing mold binding site can be capable shape, rectangle, hexagon or rounded projections arranged, and the distance between the center, adjacent pressing mold abutment is 5～110 millimeters.
6. heat exchanger according to claim 5, it is characterized in that, described media flow passage is the end pipe that is fixed on the cavity two ends, described end pipe is provided with slotted opening, described opening communicates with hollow cavity between the heat exchanger two chamber walls, described end pipe is firmly being clamped above on its half circumferential area at least by the semi-circular sheet metal that stretches out from the cavity two ends, described end pipe is that diameter is 9～40 millimeters copper or an aluminium end pipe, and described end pipe is stained with by glue laminated or welding is fixedlyed connected with two chamber walls of cavity.
7. heat exchanger according to claim 4, it is characterized in that, described media flow passage is the end pipe that is fixed on the cavity two ends, described end pipe is provided with slotted opening, described opening communicates with hollow cavity between the heat exchanger two chamber walls, described end pipe is firmly being clamped above on its half circumferential area at least by the semi-circular sheet metal that stretches out from the cavity two ends, described end pipe is that diameter is 9～40 millimeters copper or an aluminium end pipe, and described end pipe is stained with by glue laminated or welding is fixedlyed connected with two chamber walls of cavity.
8. heat exchanger according to claim 1 and 2 is characterized in that, the external form of described heat exchanger can be rectangle, square, triangle, circle or polygon.
9. heat exchanger according to claim 5 is characterized in that, the external form of described heat exchanger can be rectangle, square, triangle, circle or polygon.
10. heat exchanger according to claim 6 is characterized in that, the external form of described heat exchanger can be rectangle, square, triangle, circle or polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002641 CN2773593Y (en) | 2005-01-18 | 2005-01-18 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002641 CN2773593Y (en) | 2005-01-18 | 2005-01-18 | Heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN2773593Y true CN2773593Y (en) | 2006-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520002641 Expired - Fee Related CN2773593Y (en) | 2005-01-18 | 2005-01-18 | Heat exchanger |
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| Country | Link |
|---|---|
| CN (1) | CN2773593Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930727A (en) * | 2015-06-24 | 2015-09-23 | 崔建伟 | Solar thermal collector integrated with insulation decorative board and processing method |
-
2005
- 2005-01-18 CN CN 200520002641 patent/CN2773593Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930727A (en) * | 2015-06-24 | 2015-09-23 | 崔建伟 | Solar thermal collector integrated with insulation decorative board and processing method |
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Granted publication date: 20060419 |