CN203928820U - A kind of plate type heat exchanger - Google Patents

Abstract

The utility model relates to a kind of plate type heat exchanger, it comprises a first module group, several the second module groups and a 3rd module group, described in several, the second module group is arranged in the middle of described the first module group and described the 3rd module group, described the first module group and the 3rd module group pass fastening through-hole by securing member and the second module group is fixedly connected, described the first module group, the second module group and the 3rd module group shape match, described the first module group is successively by the first plate, the first pad, the second plate, the second pad, the 3rd plate and the 3rd pad stack composition, described the second module group is successively by the 4th plate, the first pad, the 5th plate, the first pad, the second plate, the second pad, the 3rd plate and the 3rd pad stack composition, described the 3rd module group is successively by the 4th plate, the first pad, the 6th plate stack composition.A kind of plate type heat exchanger the utility model proposes is simple in structure, disassembled, and easy care is applicable to high-pressure high-flow heat-exchange system.

Description

Plate type heat exchanger

Technical Field

The utility model belongs to heat exchanger spare field, concretely relates to plate heat exchanger.

Background

The plate heat exchanger is a heat exchange device and has important application in the industrial fields of refrigeration engineering, reaction engineering and the like. The first industrial plate heat exchanger in the world was designed in 1923 by Richard serigman, a founder of APV corporation, and applied for patent US1609971A in 1924. The patent discloses a structural form of a plate heat exchanger, which is characterized in that metal sheets with certain corrugated shapes are stacked together to form a thin rectangular channel, and heat exchange media exchange heat through plates. Although plate heat exchangers have been improved and developed over the last hundred years, the various plate heat exchangers used in the current industrial engineering still adopt the structural form of the patent. Further variations are shown in detail, such as the three media channel pattern in patent CN102721303A, or the microstructure of the heat exchange plate for the fluid properties of the heat exchange medium as in patent CN101460803A, or the manufacturing and assembling manufacturability between plates and system sealing. In a typical plate heat exchanger, a heat exchange medium flows in through upper (lower) corner holes of a rectangular plate and flows out through lower (upper) corner holes, while the heat exchange medium flows through a rectangular cavity. If the resistance of the heat exchange medium passing through the whole heat exchanger is divided into two parts of the resistance flowing between the plates and the resistance flowing through the plate holes, the proportion of the resistance flowing through the plate holes to the total resistance is higher. For a high-pressure and large-flow heat exchange system, plate hole resistance not only causes the total power loss of the system to be larger and the friction heating to be serious, but also causes the plate hole area to be easy to damage and leak due to the violent change of local dynamic pressure.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a plate heat exchanger, overcome above-mentioned defect, through the institutional advancement to the heat exchanger device, solve to high pressure, large-traffic heat transfer system, the diaphragm orifice resistance not only makes the total power loss of system great, and the friction is generated heat seriously, makes the diaphragm orifice region easily damage and the problem of leaking moreover.

In order to solve the technical problem, the utility model provides a plate heat exchanger, it includes a first module group, a plurality of second module group and a third module group, a plurality of the second module group set up in first module group with in the middle of the third module group, the edge all around of first, second, three module group is equipped with fastening through hole, first module group and third module group pass fastening through hole through the fastener and second module group fixed connection, first module group, second module group and third module group are shape assorted equilateral polygon, first module group comprises first slab, first gasket, second slab, second gasket, third slab and third gasket stack in proper order, second module group comprises fourth slab, first gasket, fifth slab, first gasket, second slab, second gasket in proper order, The third plate and the third gasket are overlapped, and the third module group is sequentially overlapped by a fourth plate, a first gasket and a sixth plate.

As a preferable embodiment of the plate heat exchanger of the present invention, in the first module group, the first plate includes a first wall surface and a second wall surface, a surface of the first plate contacting the first gasket is the second wall surface, a surface of the first plate opposite to the second wall surface is the first wall surface, the second plate includes a third wall surface and a fourth wall surface, a surface of the second plate contacting the first gasket is the third wall surface, a surface of the second plate contacting the second gasket is the fourth wall surface, the second plate is provided with a first connecting pipe through hole, the third plate includes a fifth wall surface and a sixth wall surface, a surface of the third plate contacting the second gasket is the fifth wall surface, a surface of the third plate contacting the third gasket is the sixth wall surface, the first gasket, the second gasket and the third gasket are all of frame-shaped structures, a first connecting pipe and a second connecting pipe are arranged on the first wall surface, one end of the first connecting pipe is exposed out of the first wall surface, the other end of the first connecting pipe penetrates through the first plate, a medium flows into a cavity formed by the second wall surface of the first plate, the third wall surface of the first gasket and the third wall surface of the second plate through the first connecting pipe, one end of the second connecting pipe is exposed out of the first wall surface, the other end of the second connecting pipe penetrates through first connecting pipe through holes of the first plate, the first gasket and the second plate, and the medium flows into a cavity formed by the fourth wall surface of the second plate, the second gasket and the fifth wall surface of the third plate through the second connecting pipe.

As a preferable embodiment of the plate heat exchanger of the present invention, in the second module group, the fourth plate includes a seventh wall surface and an eighth wall surface, a surface of the fourth plate contacting the first module group is the seventh wall surface, a surface of the fourth plate contacting the first gasket is the eighth wall surface, the fourth plate is provided with a second connection through hole, the fifth plate includes a ninth wall surface and a tenth wall surface, a surface of the fifth plate close to the fourth plate is the ninth wall surface, a surface of the fifth plate close to the second plate is the tenth wall surface, the second plate includes an eleventh wall surface and a twelfth wall surface, a surface of the second plate close to the fifth plate is the eleventh wall surface, a surface of the second plate close to the third plate is the twelfth wall surface, the second plate is provided with a first connecting pipe through hole, the third plate comprises a thirteenth wall surface and a fourteenth wall surface, one surface of the third plate close to the second plate is the thirteenth wall surface, one surface of the third plate close to the third module group is the fourteenth wall surface, the first gasket, the second gasket and the third gasket are all in frame-shaped structures, the fifth plate is provided with a third connecting pipe and a fourth connecting pipe, the third connecting pipe penetrates through the second connecting pipe through holes of the fifth plate, the first gasket and the fourth plate, a medium flows into a cavity formed by the tenth wall surface of the fifth plate, the eleventh wall surface of the first gasket and the eleventh wall surface of the second plate through the third connecting pipe, the fourth connecting pipe penetrates through the first connecting pipe through holes of the fifth plate, the first gasket and the second plate, and flows into a twelfth wall surface of the second plate through the fourth connecting pipe, The cavity is formed by the thirteenth wall surface of the second gasket and the third plate.

As a preferred embodiment of the plate heat exchanger of the present invention, in the third module group, the fourth plate includes a fifteenth wall surface and a sixteenth wall surface, a surface of the fourth plate contacting with the second module group is the fifteenth wall surface, a surface of the fourth plate opposite to the fifteenth wall surface is the sixteenth wall surface, the fourth plate is provided with a second connection through hole, the sixth plate includes a seventeenth wall surface and an eighteenth wall surface, a surface of the sixth plate close to the fourth plate is the seventeenth wall surface, a surface of the sixth plate opposite to the seventeenth wall surface is the eighteenth wall surface, the first gasket is in a frame structure, the sixth plate is provided with a fifth connection pipe and a sixth connection pipe, one end of the fifth connection pipe is exposed from the eighteenth wall surface, and the other end of the fifth connection pipe penetrates through the sixth plate, and a medium flows out of a cavity formed by a sixteenth wall surface of the fourth plate, the first gasket and a seventeenth wall surface of the sixth plate through a fifth connecting pipe, one end of the sixth connecting pipe is exposed out of the eighteenth wall surface, the other end of the sixth connecting pipe penetrates through second connecting pipe through holes of the sixth plate, the first gasket and the fourth plate, and the medium flows out of a cavity formed by a fourteenth wall surface of the second module block, the third gasket, the fourth plate in the third module block, the first gasket and the seventeenth wall surface of the sixth plate through the second connecting pipe.

As a preferred scheme of a plate heat exchanger is close to each edge of second slab is equipped with the first edge passageway that link up, is close to each edge of second gasket be equipped with link up with the corresponding second edge passageway of first edge passageway is close to each edge of third slab be equipped with link up with the corresponding third edge passageway of second edge passageway is close to the midpoint department of each edge of third slab is equipped with the first midpoint passageway that link up, is close to the midpoint department of each edge of third slab be equipped with link up with the corresponding second midpoint passageway of first midpoint passageway is close to the midpoint department of each edge of third gasket be equipped with link up with the corresponding third midpoint passageway of first midpoint passageway is close to the midpoint department of each edge of fourth slab be equipped with link up with the corresponding third midpoint passageway of first midpoint passageway, second midpoint passageway.

As a preferred scheme of a plate heat exchanger in the first module group, be provided with first intensive ripple on second wall, third wall and the sixth wall, be provided with the second on fourth wall and the fifth wall and strengthen the ripple in the second module group, be provided with first intensive ripple on seventh wall, tenth wall, eleventh wall and the fourteenth wall, be provided with the second on eighth wall, ninth wall, twelfth wall and the thirteenth wall and strengthen the ripple in the third module group, be provided with first intensive ripple on the fifteenth wall, be provided with the second on sixteenth wall and the seventeenth wall and strengthen the ripple.

As a preferred scheme of a plate heat exchanger, first intensive ripple includes first annular line and first "V" shape line combination, first annular line setting is put at wall central point, and first takeover, second takeover, third takeover, fourth takeover, fifth takeover, sixth takeover, first takeover through-hole and second takeover through-hole all set up in the inner diameter circle of first annular line, first "V" shape line combination sets up the outside of first annular ripple, first "V" shape line combination is by a plurality of radial "V" constitution, the directional wall center of arrow point direction of "V", the corner region of the directional wall of opening direction of "V".

As a preferred scheme of a plate heat exchanger, the ripple is reinforceed to the second includes second ring line and second "V" shape line combination, the second ring line with first ring line is corresponding, the second ring line sets up and puts at wall central point, and first takeover, second takeover, third takeover, fourth takeover, fifth takeover, sixth takeover, first takeover through-hole and second takeover through-hole all set up in the inner diameter circle of second ring line, second "V" shape line combination sets up the outside of second ring line, second "V" shape line combination is radial "V" by a plurality of and constitutes, the directional wall center of arrow direction of "V", the directional middle point region in the limit of the directional wall of the opening direction of "V".

As a preferred embodiment of the plate heat exchanger of the present invention, the first reinforced corrugation or the second reinforced corrugation is a raised corrugation or a depressed corrugation.

As an optimized scheme of a plate heat exchanger, first module group, second module group and third module group are square.

Compared with the prior art, the utility model provides a plate heat exchanger changes traditional plate heat exchanger's inner structure form, divides the flow channel of medium between the slab is inside into intermediate channel and border channel to be provided with a plurality of border channels, and then reduce the flow resistance of medium in order to adapt to high-pressure large-traffic system, the utility model discloses simple structure, high efficiency, the dependable performance, it is with low costs, satisfied the needs of production.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein,

FIG. 1 is a schematic perspective view of one embodiment of a plate heat exchanger;

FIG. 2 is a schematic perspective view of a first module set of an embodiment of a plate heat exchanger;

FIG. 3 is a schematic perspective view of a second module set of an embodiment of a plate heat exchanger;

FIG. 4 is a schematic perspective view of a third module set of an embodiment of a plate heat exchanger;

FIG. 5 is a schematic front view of a plate heat exchanger;

FIG. 6 is a schematic sectional view taken along section A-A of FIG. 5; and

fig. 7 is a partial enlarged view at I in fig. 6.

Wherein: 1 is a first module group, 2 is a second module group, 3 is a third module group, 4 is a fastener, 41 is a screw, 42 is a gasket, 43 is a nut, 44 is a fastening through hole, 5 is a first plate, 51 is a first connecting pipe, 52 is a second connecting pipe, 6 is a second plate, 61 is a first connecting pipe through hole, 62 is a first edge channel, 7 is a third plate, 71 is a first midpoint channel, 72 is a third edge channel, 8 is a fourth plate, 81 is a second connecting pipe through hole, 82 is a third midpoint channel, 9 is a fifth plate, 91 is a third connecting pipe, 92 is a fourth connecting pipe, 10 is a sixth plate, 101 is a fifth connecting pipe, 102 is a sixth connecting pipe, 11 is a first gasket, 12 is a second gasket, 121 is a second edge channel, 13 is a third gasket, 131 is a second midpoint channel, 14 is a first reinforced corrugation, 141 is a first annular corrugation, 142 is a first V-shaped corrugation combination, 15 is a second reinforced corrugation, 151 is a second annular corrugation, 152 is a second "V" corrugation combination.

Detailed Description

The plate heat exchanger of the utility model comprises a first module group 1, a plurality of second module groups 2 and a third module group 3, a plurality of second module groups 2 are arranged between the first module group 1 and the third module group 3, the peripheral edges of the first, second and third module groups are provided with fastening through holes 44, the first module group 1 and the third module group 3 pass through the fastening through holes 44 through fasteners 4 to be fixedly connected with the second module group 2, the shapes of the first module group 1, the second module group 2 and the third module group 3 are matched, the first module group 1, the second module group 2 and the third module group 3 are equilateral polygons,

the first module group 1 is formed by sequentially overlapping a first plate 5, a first gasket 11, a second plate 6, a second gasket 12, a third plate 7 and a third gasket 13, the second module group 2 is formed by sequentially overlapping a fourth plate 8, a first gasket 11, a fifth plate 9, a first gasket 11, a second plate 6, a second gasket 12, a third plate 7 and a third gasket 13, and the third module group 3 is formed by sequentially overlapping a fourth plate 8, a first gasket 11 and a sixth plate 10.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the following embodiments.

First, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Secondly, the utility model discloses utilize structural schematic diagram etc. to carry out the detailed description, when detailing the embodiment of the utility model discloses, for the convenience of explanation, the schematic diagram that shows a plate heat exchanger structure can not do local enlargement according to general proportion, moreover the schematic diagram is the example only, and it should not limit here the scope of the protection of the utility model. In addition, the actual fabrication process should include three-dimensional space of length, width and depth.

Example one

In this embodiment, for convenience of understanding, the first module group 1, the second module group 2, and the third module group 3 are illustrated as squares.

Referring to fig. 1, 5, 6 and 7, fig. 1 is a schematic perspective view of an embodiment of a plate heat exchanger, fig. 5 is a schematic front view of the plate heat exchanger, fig. 6 is a schematic cross-sectional view taken along a-a section of fig. 5, and fig. 7 is an enlarged view of a portion I of fig. 6. As shown in fig. 1, a plate heat exchanger according to the present invention includes a first module group 1 disposed at the leftmost side, a plurality of second module groups 2 disposed at the right side, and a third module group 3 disposed at the rightmost side, which are connected to form a heat exchanger whole through a plurality of fasteners 4. In one embodiment, the fastening member 4 is composed of a screw 41, a washer 42, and a nut 43, and each of the plates and the washer is provided with a fastening through hole 44 through which the screw passes.

Referring to fig. 2, fig. 2 is a schematic perspective view of a first module group of an embodiment of a plate heat exchanger. As shown in fig. 2, a first plate 5 is disposed at the leftmost side of the first module group 1, a first connection pipe 51 and a second connection pipe 52 are disposed on a first wall surface of the first plate 5 (i.e., a left side wall surface of the first plate 5, not shown), one end of the first connection pipe 51 is exposed out of the first wall surface, the other end of the first connection pipe 51 passes through a second wall surface of the first plate 5 (i.e., a right side wall surface of the first plate 5, not shown), the first connection pipe 51 and the first plate 5 are of an integrated structure, and as shown in fig. 5, 6, and 7, a medium can flow from the first connection pipe 51 to a right side area of the first plate 5. The second connecting pipe 52 and the first plate 5 are of an integrated structure, one end of the second connecting pipe 52 is exposed to the first wall surface, the other end of the second connecting pipe passes through the first connecting pipe through hole 61 of the second plate 6 on the right side of the first plate 5, and an end point of the other end of the second connecting pipe 52 is just located on the fourth wall surface of the second plate 6 (i.e., the right side wall surface of the second plate 6, not shown). The other end of the second connecting pipe 52 is welded and fixed to and sealed with the fourth wall of the second plate 6, and as shown in fig. 5, 6 and 7, the medium can flow from the second connecting pipe 52 to the right area of the second plate 6. The second wall surface of the first plate 5 is provided with a first reinforced corrugation 14, the middle area of the first reinforced corrugation 14 is provided with a first annular corrugation 141, and the periphery of the first annular corrugation 141 is provided with a plurality of first V-shaped corrugation combinations 142, wherein the arrow direction points to the center, and the opening direction points to the corner area of the second wall surface. The third wall surface of the second plate 6 (i.e. the left side wall surface of the second plate 6, not shown) is also provided with a first reinforced corrugation 14, and the middle of the third wall surface is provided with a first connecting pipe through hole 61, and the first connecting pipe through hole 61 falls into the ring of the first annular corrugation 141. The four corner regions of the third wall are provided with a first edge channel 62 therethrough. A first gasket 11 is arranged between the first plate 5 and the second plate 6, and the first gasket 11, the first plate 5 and the second plate 6 enclose a chamber. A second strengthened corrugation 15 is arranged on a fourth wall surface of the second plate 6, a second annular corrugation 151 is arranged in the middle area of the second strengthened corrugation 15, and a plurality of second V-shaped corrugation combinations 152 with arrow directions pointing to the center and opening directions pointing to the middle area of the edge are arranged on the periphery of the second annular corrugation 151. A third plate 7 is disposed on the right side of the second plate 6, a second reinforced corrugation 15 is disposed on a fifth wall surface of the third plate 7 (i.e., a left side wall surface of the third plate 7, not shown), first midpoint channels 71 are disposed in four sideline midpoint areas, and third edge channels 72 are disposed in four corner areas. A second gasket 12 is arranged between the second plate 6 and the third plate 7, and the second gasket 12, the second plate 6 and the third plate 7 enclose a cavity. The four corner regions of the second gasket 12 are provided with second edge channels 121, as shown in fig. 5, 6 and 7, when media pass through the first edge channels 62 of the corner regions of the second sheet 6, the second edge channels 121 of the corner regions of the second gasket, and the third edge channels 72 of the corner regions of the third sheet, the media do not enter the chamber surrounded by the first edge channels 62, the second edge channels 121 of the corner regions of the second gasket, and the third edge channels 72 of the corner regions of the third sheet. A first reinforcing bead 14 is provided on a sixth wall surface of the third plate 7 (i.e., a right side wall surface of the third plate 7, not shown). A third gasket 13 is arranged on the right side of the third plate, and a second midpoint channel 131 is arranged in the four side line midpoint areas of the third gasket 13.

Referring to fig. 3, fig. 5, fig. 6 and fig. 7, fig. 3 is a schematic perspective view of a second module group of an embodiment of a plate heat exchanger. As shown in fig. 3, a fourth plate 8 is disposed at the leftmost side of the second module group 2, a first reinforced corrugation 14 is disposed on a seventh wall surface of the fourth plate 8 (i.e., a left side wall surface of the fourth plate 8, not shown), a second connecting pipe through hole 81 is disposed in the middle, and a third midpoint channel 82 is disposed in the midpoint area of the four side lines. A chamber is enclosed by the third plate 7 of the first module group 1, the third gasket 13 of the first module group 1 and the fourth plate 8 of the second module group 2. The eighth wall surface of the fourth sheet 8 (i.e., the right side wall surface of the fourth sheet 8, not shown) is provided with a second reinforcing bead 15. A fifth plate 9 is disposed on the right side of the fourth plate 8, a second reinforced corrugation 15 is disposed on a ninth wall surface of the fifth plate 9 (i.e., a left side wall surface of the fifth plate 9, not shown), a first reinforced corrugation 14 is disposed on a tenth wall surface of the fifth plate 9 (i.e., a right side wall surface of the fifth plate 9, not shown), a third connection pipe 91 is disposed on the ninth wall surface of the fifth plate 9, the third connection pipe is integrated with the fifth plate 9, the other end of the third connection pipe 91 passes through a second connection pipe through hole 81 of the fourth plate 8 on the left side, and an end point of the third connection pipe passes through a seventh wall surface of the fourth plate 8, and is welded, fixed and sealed with the seventh wall surface of the fourth plate 8. As shown in fig. 5, 6 and 7, the medium may pass from the left chamber of the fourth plate 8 to the right chamber of the fifth plate 9. A fourth adapter 92 is provided on the tenth wall surface of the fifth plate 9 (i.e., the right wall surface of the fifth plate 9, not shown), and is formed integrally with the fifth plate 9. The fourth connection pipe 92 passes through the first connection pipe through hole 61 of the second plate 6 on the right, and has an end point just above the twelfth wall surface of the second plate 6 (i.e., the right side wall surface of the second plate 6, not shown), and is welded, fixed, and sealed with the twelfth wall surface of the second plate 6. As shown in fig. 5, 6 and 7, the medium can pass from the left chamber of the fifth plate 9 to the right chamber of the second plate 6. A first gasket 11 is arranged between the fifth plate 9 and the fourth plate 8 on the left side of the fifth plate, and a first gasket 11 is arranged between the fifth plate 9 and the second plate 6 on the right side of the fifth plate. A third plate 7 is arranged on the right side of the second plate 6, and a second gasket 12 is arranged between the second plate 6 and the third plate 7 on the right side. A third gasket 13 is arranged on the right side of the third plate 7, wherein the structures of the first gasket 11, the second gasket 12, the third gasket 13, the second plate 6 and the third plate 7 have been described in the description of the structures of the first gasket 11, the second gasket 12, the third gasket 13, the second plate 6 and the third plate 7 in the first module group 1, and therefore, the description thereof is omitted.

Referring to fig. 1, the right side of the second module group 2 may be provided with the second module group 2 repeatedly, or may be provided with the third module group 3. Since the structure of the second module group 2 which is repeatedly arranged has been described above, the third module group 3 is described below.

Referring to fig. 4, 5, 6 and 7, fig. 4 is a schematic perspective view of a third module group of an embodiment of a plate heat exchanger. As shown in fig. 4. A fourth plate 8 is arranged at the leftmost side of the third module group 3, and a chamber is enclosed by the fourth plate 8, the rightmost third plate 7 of the second module group 2 and the third gasket 13. A sixth plate 10 is arranged on the right side of the fourth plate 8 of the third module group 3, a fifth connecting pipe 101 and a sixth connecting pipe 102 are arranged on an eighteenth wall surface of the sixth plate 10 (namely, the right wall surface of the sixth plate 10, not shown), the fifth connecting pipe 101 and the sixth connecting pipe 102 are integrated with the sixth plate 10, one end of the sixth connecting pipe 102 is exposed out of the eighteenth wall surface, the other end of the sixth connecting pipe passes through the second connecting pipe through hole 81 of the fourth plate 8 on the left side, and the end point of the other end of the sixth connecting pipe 102 is just located on a fifteenth wall surface of the fourth plate 8 (namely, the left wall surface of the fourth plate 8, not shown). And is welded and fixed with the fifteenth wall surface of the fourth plate 8 and sealed, as shown in fig. 5, 6 and 7, the medium can flow out of the heat exchanger from the left chamber of the fourth plate 8. The sixth plate 10, the fourth plate 8 and the first gasket 11 arranged therebetween enclose a chamber. The structure of the fourth plate 8 and the first gasket 11 has already been described in the description of the structure of the first gasket 11 in the first module group 1 and the fourth plate 8 in the second module group 2, and therefore, the description thereof is omitted. A seventeenth wall surface of the sixth sheet 10 (i.e., a left side wall surface of the sixth sheet 10, not shown) is provided with a second reinforcement corrugation 15.

In summary, a medium flows in through the first connecting pipe 51, alternately passes through the edge channel of the corner region, the third connecting pipe 91, and finally flows out through the sixth connecting pipe 102; the other medium flows in through the second connection pipe 52, alternately passes through the midpoint channel, the fourth connection pipe 92 and finally flows out through the fifth connection pipe 101. The whole structure forms a plate heat exchanger with two inlets and two outlets.

The utility model relates to a plate heat exchanger level is placed heat transfer effect and is more ideal. In addition, the positions of the edge channel and the middle point channel of the corner area can be interchanged. The reinforced corrugation can be convex or concave on the wall plate, the reinforced corrugation comprises V-shaped corrugation combination and annular corrugation, the V-shaped corrugation combination is radial V-shaped with the arrow pointing to the center, and the starting point of radiation is close to the edge channel area of the chamber where the wall surface is located, namely the four corner areas or the middle point area of the four edges. The radiation terminates adjacent the central passage area of the chamber in which the wall is located. The ring-shaped veins are arranged in the region of the central channel of the chamber in such a way that the central channel is located just inside the ring-shaped veins. In addition, the reinforced corrugations of the two side plates in each chamber are symmetrically arranged, so that when a medium flows into the chamber from the connecting pipe, the medium firstly flows through the annular corrugations, and the annular corrugations promote the uniform flow of the medium in all directions of the circumference; secondly, because the radial V-shaped thread combination just obstructs the medium from flowing to the marginal channel area, the medium has to cross the V-shaped thread in the flowing process to promote local turbulence, and the local turbulence promotes the medium to maintain higher temperature difference in the near-wall surface area, thereby strengthening the heat exchange effect, but also leading the flow resistance to be increased moderately.

Because simple structure easily strengthens and for the formula of can disassembling, so the utility model discloses can adapt to high pressure system and easy to maintain and maintenance. Because the marginal passageway quantity has a plurality ofly again, inside flow resistance obviously is less than traditional plate heat exchanger, so the utility model discloses also can adapt to large-traffic heat transfer system well.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. A plate heat exchanger, characterized in that: the module comprises a first module group, a plurality of second module groups and a third module group, wherein the plurality of second module groups are arranged between the first module group and the third module group, fastening through holes are arranged at the peripheral edges of the first module group, the second module group and the third module group, the first module group and the third module group are fixedly connected with the second module group by fasteners penetrating through the fastening through holes, the first module group, the second module group and the third module group are equilateral polygons with matched shapes,

the first module group is formed by stacking a first plate, a first gasket, a second plate, a second gasket, a third plate and a third gasket in sequence, the second module group is formed by stacking a fourth plate, the first gasket, a fifth plate, the first gasket, the second plate, the second gasket, the third plate and the third gasket in sequence, and the third module group is formed by stacking the fourth plate, the first gasket and the sixth plate in sequence.

2. A plate heat exchanger according to claim 1, wherein: in the first set of modules, the first module is a module,

the first plate comprises a first wall surface and a second wall surface, the surface of the first plate, which is contacted with the first gasket, is the second wall surface, the surface of the first plate, which is opposite to the second wall surface, is the first wall surface,

the second plate comprises a third wall surface and a fourth wall surface, the third wall surface is arranged on the surface of the second plate contacted with the first gasket, the fourth wall surface is arranged on the surface of the second plate contacted with the second gasket, a first connecting pipe through hole is arranged on the second plate,

the third plate comprises a fifth wall surface and a sixth wall surface, the surface of the third plate contacted with the second gasket is the fifth wall surface, the surface of the third plate contacted with the third gasket is the sixth wall surface,

the first gasket, the second gasket and the third gasket are all frame-shaped structures,

the first wall surface is provided with a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is exposed out of the first wall surface, the other end of the first connecting pipe penetrates through the first plate, a medium flows into a cavity formed by the second wall surface of the first plate, the first gasket and the third wall surface of the second plate through the first connecting pipe, one end of the second connecting pipe is exposed out of the first wall surface, the other end of the second connecting pipe penetrates through first connecting pipe through holes of the first plate, the first gasket and the second plate, and the medium flows into a cavity formed by the fourth wall surface of the second plate, the second gasket and the fifth wall surface of the third plate through the second connecting pipe.

3. A plate heat exchanger according to claim 2, wherein: in the second set of modules, the first module is a master module,

the fourth plate comprises a seventh wall surface and an eighth wall surface, the seventh wall surface is arranged on the surface of the fourth plate contacted with the first module group, the eighth wall surface is arranged on the surface of the fourth plate contacted with the first gasket, a second connecting pipe through hole is arranged on the fourth plate,

the fifth plate comprises a ninth wall surface and a tenth wall surface, one surface of the fifth plate close to the fourth plate is the ninth wall surface, one surface of the fifth plate close to the second plate is the tenth wall surface,

the second plate comprises an eleventh wall surface and a twelfth wall surface, one surface of the second plate close to the fifth plate is the eleventh wall surface, one surface of the second plate close to the third plate is the twelfth wall surface, the second plate is provided with a first connecting pipe through hole,

the third plate comprises a thirteenth wall surface and a fourteenth wall surface, one surface of the third plate close to the second plate is the thirteenth wall surface, one surface of the third plate close to the third module group is the fourteenth wall surface,

the first gasket, the second gasket and the third gasket are all frame-shaped structures,

and a third connecting pipe and a fourth connecting pipe are arranged on the fifth plate, the third connecting pipe penetrates through second connecting pipe through holes of the fifth plate, the first gasket and the fourth plate, a medium flows into a cavity formed by a tenth wall surface of the fifth plate, the first gasket and an eleventh wall surface of the second plate through the third connecting pipe, the fourth connecting pipe penetrates through first connecting pipe through holes of the fifth plate, the first gasket and the second plate, and the medium flows into a cavity formed by a twelfth wall surface of the second plate, the second gasket and a thirteenth wall surface of the third plate through the fourth connecting pipe.

4. A plate heat exchanger according to claim 3, wherein: in the third set of modules, the first module is a master module,

the fourth plate comprises a fifteenth wall surface and a sixteenth wall surface, the fifteenth wall surface is arranged on the surface of the fourth plate contacting with the second module group, the sixteenth wall surface is arranged on the surface of the fourth plate opposite to the fifteenth wall surface, a second connecting pipe through hole is arranged on the fourth plate,

the sixth plate comprises a seventeenth wall surface and an eighteenth wall surface, one surface of the sixth plate close to the fourth plate is the seventeenth wall surface, the other surface of the sixth plate opposite to the seventeenth wall surface is the eighteenth wall surface,

the first gasket is of a frame-shaped structure,

and a fifth connecting pipe and a sixth connecting pipe are arranged on the sixth plate, one end of the fifth connecting pipe is exposed out of the eighteenth wall surface, the other end of the fifth connecting pipe penetrates through the sixth plate, a medium flows out of a cavity formed by the sixteenth wall surface of the fourth plate, the first gasket and the seventeenth wall surface of the sixth plate through the fifth connecting pipe, one end of the sixth connecting pipe is exposed out of the eighteenth wall surface, the other end of the sixth connecting pipe penetrates through second connecting pipe through holes of the sixth plate, the first gasket and the fourth plate, and the medium flows out of the cavity formed by the fourteenth wall surface of the second module, the third gasket, the fourth plate of the third module, the first gasket and the seventeenth wall surface of the sixth plate through the second connecting pipe.

5. A plate heat exchanger according to claim 4, wherein: each corner close to the second plate is provided with a through first edge channel, each corner close to the second gasket is provided with a through second edge channel corresponding to the first edge channel, each corner close to the third plate is provided with a through third edge channel corresponding to the second edge channel, the midpoint of each edge close to the third plate is provided with a through first midpoint channel, the midpoint of each edge close to the third gasket is provided with a through second midpoint channel corresponding to the first midpoint channel, and the midpoint of each edge close to the fourth plate is provided with a through third midpoint channel corresponding to the first midpoint channel and the second midpoint channel.

6. A plate heat exchanger according to claim 4, wherein:

in the first module group, the second wall surface, the third wall surface and the sixth wall surface are provided with first reinforced ripples, the fourth wall surface and the fifth wall surface are provided with second reinforced ripples,

in the second module group, the seventh wall surface, the tenth wall surface, the eleventh wall surface and the fourteenth wall surface are provided with first reinforced ripples, the eighth wall surface, the ninth wall surface, the twelfth wall surface and the thirteenth wall surface are provided with second reinforced ripples,

in the third module group, a first reinforced corrugation is arranged on the fifteenth wall surface, and second reinforced corrugations are arranged on the sixteenth wall surface and the seventeenth wall surface.

7. The plate heat exchanger according to claim 6, wherein the first strengthening corrugation comprises a first annular corrugation and a first V-shaped corrugation combination, the first annular corrugation is arranged at the center of the wall surface, the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe, the sixth connecting pipe, a first connecting pipe through hole and a second connecting pipe through hole are all arranged in an inner diameter ring of the first annular corrugation, the first V-shaped corrugation combination is arranged on the outer side of the first annular corrugation, the first V-shaped corrugation combination is composed of a plurality of radial V-shaped corrugations, the arrow direction of the V-shaped corrugations points to the center of the wall surface, and the opening direction of the V-shaped corrugations points to corner areas of the wall surface.

8. The plate heat exchanger according to claim 6, wherein the second strengthening corrugation comprises a second annular corrugation and a second V-shaped corrugation combination, the second annular corrugation corresponds to the first annular corrugation, the second annular corrugation is arranged at the center of the wall surface, the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe, the sixth connecting pipe, the first connecting pipe through hole and the second connecting pipe through hole are all arranged in an inner diameter ring of the second annular corrugation, the second V-shaped corrugation combination is arranged on the outer side of the second annular corrugation, the second V-shaped corrugation combination is composed of a plurality of radial V-shaped corrugations, the arrow direction of the V-shaped corrugations points to the center of the wall surface, and the opening direction of the V-shaped corrugations points to the middle point area of the edge of the wall surface.

9. A plate heat exchanger according to claim 7 or 8, wherein the first or second strengthening corrugation is a raised corrugation or a depressed corrugation.

10. The plate heat exchanger of claim 1 wherein the first, second and third module sets are square.