A kind of manufacture method of self-tightening sealing plate type heat exchanger
Technical field
The present invention relates to a kind of heat exchanger fin, plate type heat exchanger and manufacture method thereof.
Background technology
The heat exchanger of industrial application has various structures, as steel pipe type, fin tube type, top tubular type, heat pipe-type, the various ways such as board-like.Wherein, plate type heat exchanger has that heat exchange efficiency is high, compact conformation, the advantage such as cheap, has obtained using widely.But there is sealing difficulty in plate type heat exchanger at present, manufactures the problems such as difficulty of processing is larger, causes the in use two media for heat exchange mutually to go here and there mixed.As the heat exchanger of industrial furnace combustion product gases waste heat recovery, more if air capacity seals in flue gas, can cause dewpoint corrosion, cause heat exchanger and affiliated facility thereof to lose efficacy, thereby have a strong impact on the cycle of operation of this device.Analyze reason, cause a poor major reason heat exchanger of plate type heat exchanger sealing effectiveness between heat exchanger fin and heat exchanger fin, to be connected the mode that normally adopts direct welding in manufacture process, in order to meet seal request, welding procedure difficulty is very big, even so, still often there is heat transferring medium mixed sealing problem mutually.And, be subject to process technology limit, manufacture a heat exchanger from just essential its size dimension that determines at the beginning of design, and cannot according to heat exchange specifically need flexible, thereby affect the range of application of heat exchanger.
Summary of the invention
The object of the invention is in order to solve the problems of the technologies described above, provide a kind of simple in structure, manufacture easy exchange fin structure.
Another object of the present invention be for provide a kind of simple in structure, self-tightening sealing plate type heat exchanger very convenient, that can be assembled into as required different size size is installed.
A further object of the invention is to provide the manufacture method of above-mentioned self-tightening sealing plate type heat exchanger.
Exchange fin structure of the present invention, comprises square plate body, and four limits of described square plate body are equipped with curling back-shaped structure, and the back-shaped structure on described adjacent both sides is mutually mated and be curling towards the opposite.
Described square plate body is provided with many parallel deflectors, and described deflector can be straight shape, S shape or other shape.
Exchange fin structure of the present invention is different from common board-like exchange fin structure, the difference that forms on four limits of square plate body curling towards back-shaped structure, be described curling being oriented up or down, if a side opposite side is curling towards upwards, another opposite side is curling towards downward, makes like this curl direction of back-shaped structure on adjacent both sides just in time contrary.Described back-shaped structure is that section is inwardly shown as or outside curling back-shaped structure.Upwards back-shaped interstructural that this structure can realize the square plate body of the downward back-shaped structure of arbitrary square plate body and its lower floor mates grafting, the curly form of described back-shaped structure can be the curling of curling or 90 curling or other proper angle in degree right angles of arc, and the back-shaped structure matching of correspondence between upper and lower two square plate bodys can present labyrinth shape hermetically-sealed construction after pegging graft.
Self-tightening sealing plate type heat exchanger of the present invention, comprises square plate body, and four limits of described square plate body are equipped with curling back-shaped structure, and the back-shaped structure on described adjacent both sides is mutually mated and be curling towards the opposite; Described polylith square plate body overlaps formation cube structure, and its downward curling back-shaped structure of square plate body that is positioned at upper strata is pegged graft with its back-shaped structure upsweeping of square plate body that is positioned at lower floor.
Described heat exchanger also includes upper and lower shrouding, and two corresponding sides of described upper sealing plate are provided with curling back-shaped structure downwards, and the back-shaped structure upsweeping of the square plate body of this back-shaped structure and the cube structure the superiors is pegged graft; Two corresponding sides of described lower shrouding are provided with the back-shaped structure upsweeping, and the downward curling back-shaped structure of this back-shaped structure and the undermost heat exchanger fin of cube structure is pegged graft.
Described square plate body is provided with many parallel deflectors.
Four jiaos of perpendicular edge of the cube structure that the square plate body that described polylith overlaps forms are fixed with strengthening vertical bar.
The connector that splices or be connected with pipeline for is mutually housed on four vertical planes of described cube structure.
By the overlapping grafting of multiple square plate bodys, can form the cube structure with multilayer side's heat exchanger fin, owing to being positioned at its downward curling back-shaped structure of square plate body and its back-shaped structure grafting (two back-shaped structure matching are pegged graft) upsweeping of square plate body that is positioned at lower floor on upper strata, after multilayer is pegged graft like this, in the cube structure forming, there are two heat that do not communicate and change passage, be cubical four vertical planes, before, below and left, the right side communicates between two, and (what between adjacent side's body plate body, form is upper, lower two-layer interchannel does not communicate), can pass into respectively two media and carry out heat exchange, and, when two media flows into respectively after passage separately, the fluid pressure of medium can make two adjacent heat exchanger fins expand, the power producing that expands can make two heat exchanger fins stretch in opposite directions, and then sealing place (being the back-shaped structure of two heat exchanger fins of inserting state) is compressed mutually, thereby reach the effect of self-tightening sealing.
Further, the length of the back-shaped structure of the corresponding both sides of described square plate body is more preferably greater than the length of another corresponding back-shaped structure in both sides, and the long limit that can be convenient to so the back-shaped structure of later-stage utilization is strengthened and fixes four jiaos of cube structures.
Described strengthening vertical bar is used for four of cube structure jiaos to carry out further sealing and reinforcing, strengthens its sealing effectiveness of four jiaos, has also strengthened the connection of whole cube structure and has fixed.
The setting of described upper and lower shrouding is for the cube structure the superiors and undermost square plate body are sealed, and the form of also having utilized back-shaped structure to peg graft.
The manufacture method of above-mentioned self-tightening sealing plate type heat exchanger, carry out in the steps below:
(1) by both sides corresponding before and after on square plate body four limits respectively inside or outwards curling (in the present embodiment, roll angle is 90 degree flangings) form the back-shaped structure towards upwards, and by corresponding left and right both sides respectively outside or inwardly curling (in the present embodiment, roll angle is 90 degree flangings) form towards downward back-shaped structure, the back-shaped structure of forward and backward corresponding sides and the back-shaped structure matching of left and right corresponding sides, make heat exchanger fin; Described curling angle can be arc or 90 degree right angles, and curling flanging amount can need to determine according to manufacturing, be preferably 5-15cm.
(2) by arbitrary horizontal direction 90-degree rotation in two overlapping square plate bodys, the downward back-shaped structure correspondence of the square plate body in upper strata is inserted in the square plate body of lower floor back-shaped structure upwards, make two square plate bodys realize grafting and form labyrinth shape hermetically-sealed construction, repeat aforesaid operations, multiple square plate bodys are realized and pegged graft (can design according to specific needs any multilayer), make the heat exchanger of cube structure.
In described step (1), at least one surface of square plate body, many parallel deflectors are installed.Described deflector axially should be with back-shaped structure on same plate face axially identical, described deflector can be straight shape or S shape, is welded in the surface of square plate body with the form of spot welding or continuous welding, deflector not only can water conservancy diversion but also can have been strengthened the rigidity of heat exchanger fin.
In step (2), install shrouding in the superiors of described cube structure, orlop is installed lower shrouding; The mounting means of described upper sealing plate is, two corresponding sides of square plate body are curled into respectively to back-shaped structure downwards, and the back-shaped structure upsweeping of the square plate body of this back-shaped structure and the cube structure the superiors is pegged graft; The mounting means of described lower shrouding is, two corresponding sides of square plate body are upsweeped respectively and form back-shaped structure, makes the downward curling back-shaped structure grafting of this back-shaped structure and the undermost square plate body of cube structure.
In described step (2), in four vertical angles of cube structure that upper and lower shrouding has been installed, strengthening vertical bar is installed, to reinforce the connection between multiple square plate bodys; Then the connector that mutually splices or be connected with pipeline between heat exchanger is installed on four vertical planes of cube structure.
Heat in described strengthening vertical bar and stereochemical structure respective corners is changed the back-shaped structure end welding of sheet, and the object that adds strengthening vertical bar is in order to reinforce heat exchanger on the one hand, is also convenient to installation connecting element simultaneously.Described connector is installed respectively (welding) on four vertical planes of heat exchanger, the most frequently used is to use flange as connector, the cube structure of several formed objects can connect by flange like this, and the flange that this flange is also convenient to input or output in pipeline opening with heat transferring medium is simultaneously connected.
Beneficial effect:
1. by the grafting of simple back-shaped structure, realizing self-energized seal between heat exchanger fin connects, need the workload of welding few, the mode of the seal welding of passing by is compared, not only good sealing effect, the two media that has solved heat exchange is in the past gone here and there mixed problem mutually, and greatly reduces manufacture difficulty.
2. utilize grafting form can realize free assembling, not only can control the size of the stereochemical structure of assembling, also can realize according to the actual requirements combination and the splicing between heat exchanger, make to manufacture and become very flexible, reduce production cost, time saving and energy saving, make and can be transported to scene after independent heat exchanger and assemble into larger-size heat exchanger through flange again, very convenient and practical, plate type heat exchanger of the present invention can be applied under various working, for example, as gas/gas, gas/liquid or the heat exchange of liquid/liquid (as for the waste heat recovery of industrial furnace combustion product gases etc.)
Brief description of the drawings
Fig. 1 is square plate shear angle schematic diagram;
Fig. 2 is that both sides upsweep and form back-shaped structural representation before and after square plate;
Fig. 3 is that before and after square plate, both sides curl into back-shaped structural representation downwards;
Fig. 4 is exchange fin structure schematic diagram of the present invention;
Fig. 5 is the partial enlarged drawing of the back-shaped structure of Fig. 4 I portion;
Fig. 6 two heat exchanger fin inserting state schematic diagrames;
Fig. 7 is the partial enlarged drawing of the back-shaped structure of Fig. 6 II portion inserting state;
Fig. 8 is the cube structural representation forming after polylith heat exchanger fin is pegged graft;
Fig. 9 is upper sealing plate structural representation;
Figure 10 is lower closing plate structure schematic diagram;
The upper and lower shrouding scheme of installation of Figure 11;
Figure 12 is the scheme of installation of strengthening vertical bar;
Figure 13 is heat exchanger schematic perspective view;
Figure 14 is multiple heat exchange assembling schematic diagrames.
Wherein, shrouding, the back-shaped structure of 5-11-, 6-strengthening vertical bar, 7-flange, 8-heat exchanger under the square plate body of 1-, 1 '-square plate body, 1-1-front, 1-2-back, 1-3-the right, the 1-4-left side, the back-shaped structure of 1-11-, 1-11 '-back-shaped structure, the back-shaped structure of 1-21-, the back-shaped structure of 1-31-, the back-shaped structure of 1-41-, 1-41 '-back-shaped structure, 2-deflector, 3-cube structure, 4-upper sealing plate, the back-shaped structure of 4-11-, 5-.
Detailed description of the invention
Referring to Fig. 4, exchange fin structure is: four limit 1-1 of square plate body 1, 1-2, 1-3, 1-4 is equipped with curling back-shaped structure 1-11, 1-21, 1-31, 1-41, wherein front 1-1 and back 1-2 are towards the back-shaped structure 1-11 upsweeping, 1-21, the right 1-3 and left side 1-4 are towards downward curling back-shaped structure 1-31, 1-41, as shown in Figure 5, described back-shaped structure 1-11, 1-21 is inwardly curling, and back-shaped structure 1-31, 1-41 is outwards curling, back-shaped structure 1-11, 1-21 and back-shaped structure 1-31, in the back-shaped structure of 1-41, mutually mate, described square plate body 1 upper face is provided with many parallel deflectors 2.
Referring to Fig. 6-Figure 12, the structure of described heat exchanger 8 is: on above-mentioned heat exchanger fin basis, square polylith plate body 1 is overlapped to form to cube structure 3, square plate body 1 ' its downward curling two the back-shaped structures (Fig. 7 only illustrates one of them back-shaped structure 1-41 ') that are arranged in upper strata are pegged graft with square plate body 1 its back-shaped structure upsweeping (Fig. 7 only illustrates one of them back-shaped structure 1-11) that is arranged in lower floor.Two corresponding sides of described upper sealing plate 4 are provided with curling back-shaped structure 4-11 downwards, and the back-shaped structure that the square plate body 1 of this back-shaped structure 4-11 and the superiors upsweeps is pegged graft; Two corresponding sides of described lower shrouding 5 are provided with the back-shaped structure 5-11 upsweeping, and the downward curling back-shaped structure of this back-shaped structure 5-11 and undermost square plate body is pegged graft, and its local inserting state is identical with state between inserting between square plate body.Four jiaos of perpendicular edge of described cube structure 3 are fixed with strengthening vertical bar 6, and described cube is tied and on four vertical planes of 3 structures, is equipped with for splicing mutually or the flange 7 that is connected with pipeline.
The manufacture method of heat exchanger 8 of the present invention is carried out in the steps below:
1. see Fig. 1, the other side's body plate body 1 carries out shear angle so that curling, cuts off distance A and is flanging amount (preferably 10-15cm);
2. see Fig. 2, front 1-1 and back 1-2 are curled into back-shaped structure 1-11 and 1-21 towards upwards and inwardly (or outwards), see Fig. 3 and Fig. 5, then the right 1-3 and left side 1-4 are curled into back-shaped structure 1-31 and 1-41 towards downward and outside (or inwardly), back-shaped structure 1-11,1-21 can mate with 1-31,1-41, and the more back-shaped structure 1-11 of the length of side of back-shaped structure 1-31,1-41 and 1-21 long (according to the design of shear angle different or equate also can, be plugged to the sealing that does not affect the later stage);
3. see Fig. 4, make heat exchanger fin at the upper face welding deflector 2 of square body plate body 1, described deflector axially should be identical with back-shaped structure 1-11 and 1-21, can not affect like this mobile 1 of square body plate body of medium;
4. see Fig. 6 and Fig. 7, make as stated above polylith heat exchanger fin, make the square body plate body 1 of polylith heat exchanger fin overlapping up and down, and by two overlapping arbitrary neighborhood square plate bodys 1, 1 ' in arbitrary horizontal direction 90-degree rotation, the square plate body 1 in upper strata ' downward back-shaped structure (one of them back-shaped structure 1-11 is only shown in Fig. 7) correspondence is inserted in the square plate body 1 of lower floor back-shaped structure (one of them back-shaped structure 1-11 is only shown in Fig. 7) upwards, two square plate bodys 1 are realized pegs graft, repeat aforesaid operations, the square plate body of multilayer (can design according to specific needs any multilayer) is realized pegs graft, see Fig. 8, form cube structure 3,
5. see Fig. 9-Figure 11, install shrouding 4 in the superiors of described cube structure 3, orlop is installed lower shrouding 5 (seeing Figure 11); 4 mounting means of described upper sealing plate are, see Fig. 9, two corresponding sides of square plate body are curled into respectively to back-shaped structure 4-41 downwards and make upper sealing plate 4, the back-shaped structure 4-11 of upper sealing plate 4 and the back-shaped structure upsweeping of the cube structure 3 square plate bodys 1 of the superiors are pegged graft; The mounting means of described lower shrouding 5 is, see Figure 10, two corresponding sides of square plate body are upsweeped respectively and form back-shaped structure 5-11 and make lower shrouding 5, the downward curling back-shaped structure grafting of the back-shaped structure that makes lower shrouding 5 and the square plate body 1 of cube structure 3 orlop;
6. see Figure 12, in four vertical angles of cube structure 3, strengthening vertical bar 6 is installed, to reinforce the connection between multiple square plate bodys; This strengthening vertical bar 6 is according to the concrete shape of vertical angle and reasonable structure design, so that later stage mounting flange 7 use;
8. see Figure 13, mounting flange 7 on four vertical planes of cube structure 3, this flange 7 can be used for 8, heat exchanger and mutually splices or be connected with the flange on pipeline, manufactures to obtain heat exchanger 8 of the present invention;
9. see Figure 14, further, can utilize multiple the heat exchangers 8 that flange 8 makes step 8 to connect and assemble by flange, manufacture the larger heat exchanger of heat exchange area.
Operation principle:
Referring to Figure 13 and Figure 14, medium one for heat exchange (as flue gas) enters heat exchanger 8 by E side along the direction of arrow through pipeline, and gone out by F effluent, heat transferring medium two (as air) enters heat exchanger 8 by G side along the direction of arrow through pipeline, and gone out by H effluent, two media are in the interior heat exchange of heat exchanger 8, when two media is respectively in inflow heat exchanger 8 separately after respective channel, the fluid pressure of medium can make two adjacent square plate volume expansions, the power producing that expands can make two square plate bodys stretch in opposite directions, and then sealing place (being the back-shaped structure of two square plate bodys of inserting state) is compressed mutually, thereby reach the effect of self-tightening sealing, therefore can there is not the mixed problem of string mutually in two media in heat exchanger.