JP2019086235A - Plate-type heat exchanger - Google Patents

Abstract

To provide a plate-type heat exchanger capable of exchanging heat between a heat exchange medium and a medium to be heat-exchanged with a requested heat exchange performance without installing a plurality of plate-type heat exchangers.SOLUTION: A first flow path formation header for demarcating a flow path communicating with a plurality of first opening parts aligned on an outer peripheral surface of a body part in which a first flow path for circulating a heat exchange medium with a heat transfer plate as a boundary and a second flow path for circulating a medium to be heat-exchanged are formed alternately, a second flow path formation header for demarcating a flow path communicating with a plurality of second opening parts aligned on an outer peripheral surface of a body part, a third flow path formation header 5 for demarcating a flow path communicating with a plurality of third opening parts within a desired range from among a plurality of third opening parts aligned on an outer peripheral surface of a body part, and a fourth flow path formation header for demarcating a flow path communicating with a plurality of fourth opening parts within a desired range from among a plurality of fourth opening parts aligned on an outer peripheral surface of a body part can be connected.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a plate type heat exchanger including a plurality of heat transfer plates stacked and adjacent heat transfer plates forming flow paths.

  Conventionally, plate heat exchangers are known. The plate type heat exchanger is a heat transfer plate having four through holes penetrating in a first direction, and includes a plurality of heat transfer plates overlapped in the first direction.

  In such a plate type heat exchanger, a first flow path for flowing a heat exchange medium having fluidity and a heat exchange medium having flowability are each separated by a plurality of heat transfer plates superposed in the first direction. The second flow paths to be circulated are alternately formed. In addition, by overlapping the plurality of heat transfer plates in the first direction, the through holes of each heat transfer plate are connected in the first direction, and a pair of first series passages communicating with only the first flow path are formed. A pair of second communication passages communicating with only the second flow passage are formed.

  In such a plate type heat exchanger, the heat exchange medium supplied to one of the first series passages flows through the first flow path and flows out of the other first series passage, while the heat exchange medium supplied to one second communication passage The supplied heat exchange medium flows through the second flow path and flows out of the other second communication path. Thereby, the heat exchange medium flowing through the first flow passage and the heat exchange medium flowing through the second flow passage exchange heat via the heat transfer plate (see, for example, Patent Document 1).

  In the plate type heat exchanger configured as described above, in order to exchange heat between a single heat exchange medium and a single heat exchange medium, for example, a single (common) heat exchange medium and heat exchange conditions or types When heat exchange is performed with different heat exchange media, a plurality of plate type heat exchangers are used according to the number of heat exchange media to be subjected to heat exchange.

  In this case, piping connected to a supply source of the heat exchange medium is connected to one first series passage of each of the plurality of plate heat exchangers, and the other one of the plurality of plate heat exchangers is connected A pipe connected to the discharge destination of the heat exchange medium is connected to the series passage. On the other hand, piping connected to the source of the heat exchange medium to be a target is connected to one second communication passage of each of the plurality of plate type heat exchangers, and a plurality of plate type heat exchangers A pipe connected to the discharge destination of the heat exchange medium is connected to each other second communication passage. Thereby, in each plate type heat exchanger, the heat exchange medium and the heat exchange medium exchange heat depending on the heat exchange condition or the type of the heat exchange medium.

  Moreover, in the plate type heat exchanger of the above configuration, the flow distance of the heat exchange medium in the first flow passage (linear distance from the inlet to the outlet) and the flow distance of the heat exchange medium in the second flow passage (from the inlet to the outlet Since the straight distance) is constant, when the flow distance of each of the heat exchange medium and the heat exchange medium is short, the opportunity for heat exchange between the heat exchange medium and the heat exchange medium can not be sufficiently obtained. The medium may not be at the required temperature or condition.

  In this case, a plurality of plate type heat exchangers are installed, and piping connected to the supply source of the heat exchange medium is connected to one of the first serial passages of each of the plurality of plate type heat exchangers. Piping connected to the discharge destination of the heat exchange medium is connected to the other first series passage of each plate heat exchanger. Further, in order to make the second flow paths of the plurality of plate type heat exchangers be continuous flow paths, the other second communication path of the plate type heat exchanger including the second flow path which is the upstream of the flow paths, A pipe is connected to one of the second communication passages of the plate type heat exchanger including the second flow passage which is the downstream region with respect to the upstream region. As a result, an opportunity (through heat exchange with the heat exchange medium flowing through the first flow path) of the heat exchange medium through the second flow path is secured, and the heat exchange medium is brought to the required temperature state or property. .

  As described above, in the conventional plate-type heat exchanger, a plurality of plate-type heat exchangers are required depending on the number of heat exchange media to be subjected to heat exchange and the required heat exchange performance.

Japanese Patent Application Publication No. 2007-255826

  Therefore, it is an object of the present invention to provide a plate-type heat exchanger capable of heat exchange between a heat exchange medium and a target heat exchange medium with the required heat exchange performance without installing a plurality of heat exchange mediums. I assume.

  A plate type heat exchanger according to the present invention includes a plurality of heat transfer plates stacked in a first direction, and a first flow path for circulating a heat exchange medium with each heat transfer plate as a boundary and a heat exchange medium A second flow path to be alternately formed, the main body portion being either an inlet for supplying the heat exchange medium to the first flow path or an outlet for discharging the heat exchange medium from the first flow path A heat exchange medium is discharged from the plurality of first open parts aligned in the first direction on the outer periphery of the main body and the inlet or the first flow path that supplies the heat exchange medium to the first flow path. A plurality of second openings aligned in a first direction on the outer periphery of the main body, and an inlet or an inlet for supplying a heat exchange medium to the second flow path, the second opening being the other of the outlets; At the third opening, which is one of the outlets for discharging the heat exchange medium from the second flow path Thus, the heat exchange medium is discharged from the plurality of third open parts aligned in the first direction on the outer periphery of the main body, and the inlet or second flow line that supplies the heat exchange medium to the second flow path. A fourth open portion which is the other of the outlets, comprising: a plurality of fourth open portions aligned in a first direction on the outer periphery of the main body, the single open end communicating with the aligned first open portions A first flow path forming header defining a flow path, a second flow path forming header defining a single flow path in communication with the plurality of second opening portions to be aligned, a plurality of third opening portions to be aligned A third channel-forming header defining a single flow passage in communication with the plurality of third openings in the desired range, and a plurality of fourth openings in the desired range of the plurality of fourth openings And a fourth flow path formation header that defines a flow path in communication with the second flow path.

  According to the above configuration, the heat exchange medium is supplied to the first opening, which is either the inlet for supplying the heat exchange medium to the first flow path or the outlet for discharging the heat exchange medium from the first flow path, and the heat exchange medium is supplied to the first flow path The heat exchange medium is discharged from the inlet or the second flow passage which supplies the heat exchange medium to the second flow passage, which is the other opening of the heat exchange medium from the inlet or the first flow passage. The fourth opening, which is either the third opening that is one of the outlets, the inlet that supplies the heat exchange medium to the second flow path, or the outlet that discharges the heat exchange medium that is discharged from the second flow path Since the portion is on the outer periphery of the main portion, each of the plurality of heat transfer plates stacked in the first direction causes the entire or substantially the entire heat transfer plate adjacent in the first direction to face each other. Thereby, the area | region which contributes to heat exchange with the heat exchange medium which distribute | circulates a 1st flow path and the to-be-exchanged heat exchange medium which distribute | circulates a 2nd flow path becomes the same or substantially the same. Accordingly, the heat exchange efficiency in each of the plurality of second flow paths can be made uniform.

  Further, by connecting the first flow path forming header, the second flow path forming header, the third flow path forming header, and the fourth flow path forming header to the main body, a desired flow path configuration can be obtained.

  That is, while the plurality of third openings in the desired range communicate with each other by the flow path defined by the third flow path forming header, the plurality of fourth openings in the desired range define the fourth flow path forming header The plurality of second flow paths in the desired range can be made into independent flow paths by appropriately determining the number and arrangement of the third flow path forming header and the fourth flow path forming header so as to communicate with each other. The plurality of second flow paths in different ranges can be continuous flow paths.

  As one aspect of the present invention, the main body portion includes a plurality of third opening groups in which the plurality of third openings are aligned in the first direction and a plurality of fourth opening groups in which the plurality of fourth openings are aligned in the first direction. The different third opening groups are arranged at different positions in the outer peripheral direction centered on the first direction, and the different fourth open group groups are arranged at different positions in the outer peripheral direction centered on the first direction Is preferred. In this manner, a plurality of third opening portions communicating with the flow path defined by the third flow path forming header, and a plurality of fourth opening portions communicating with the flow path defined by the fourth flow path forming header are different in outer circumferential direction Since it arrange | positions in a location, the connection aspect (pattern) of the 3rd flow-path formation header with respect to a main-body part and a 4th flow-path formation header increases, and it can be set as various flow-path aspects.

  As another aspect of the present invention, each of the plurality of heat transfer plates is formed in a polygonal shape including at least five corners when viewed from the first direction, and is overlapped so as to match the contour when viewed from the first direction. Preferably, the first opening, the second opening, the third opening, and the fourth opening are defined by straight edges included in the contours of adjacent heat transfer plates. In this way, the main body portion becomes an appearance polygonal pillar, and in each of the plurality of planes included in the outer peripheral surface, the plurality of first opening portions, the plurality of second opening portions, the plurality of third opening portions, and the plurality The fourth opening of the is aligned. Thereby, alignment etc. of a 1st flow-path formation header, a 2nd flow-path formation header, a 3rd flow-path formation header, and a 4th flow-path formation header can be made easy and reliable.

  ADVANTAGE OF THE INVENTION According to this invention, the outstanding effect that heat exchange can be made to heat-exchange with the required heat exchange performance can be exhibited, without installing multiple heat exchange media and object heat exchange object.

FIG. 1 is a perspective view of a plate-type heat exchanger according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the plate type heat exchanger according to the same embodiment. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2 and is a cross-sectional view in which a partial range in the first direction is omitted. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2 and is a cross-sectional view in which a partial range in the first direction is omitted. FIG. 5 is a V-V cross-sectional view of FIG. 2, and is a cross-sectional view in which a partial range in the first direction is omitted. FIG. 6 is a perspective view of the main body of the plate type heat exchanger according to the embodiment, and is a schematic overall perspective view showing connecting portions of heat transfer plates by thick lines. FIG. 7 is a perspective view of the main body of the plate type heat exchanger according to the embodiment, and is a schematic overall perspective view showing connecting portions of heat transfer plates by thick lines. FIG. 8 is a schematic view of the heat transfer plate of the plate type heat exchanger according to the embodiment as viewed from the first surface side. FIG. 9 is a schematic view of the heat transfer plate of the plate type heat exchanger according to the embodiment as viewed from the second surface side. FIG. 10 is a schematic perspective view of the main body of the plate type heat exchanger according to the embodiment. FIG. 11 is a schematic perspective view of the main body of the plate type heat exchanger according to the same embodiment. FIG. 12 is a view for explaining the flow mode of the heat exchange medium in the first flow passage of the plate type heat exchanger according to the embodiment. FIG. 13 is a view for explaining the flow mode of the heat exchange medium in the second flow passage of the plate type heat exchanger according to the embodiment. FIG. 14 is a view for explaining the flow mode of the heat exchange medium in the second flow path of the plate type heat exchanger according to the embodiment. FIG. 15 is a view for explaining the flow mode of the heat exchange medium in the second flow path of the plate type heat exchanger according to the embodiment. FIG. 16 is a perspective view of a plate type heat exchanger according to another embodiment of the present invention. FIG. 17 is a perspective view of a plate type heat exchanger according to another embodiment of the present invention. FIG. 18 is a view for explaining the flow mode of the heat exchange medium in the plate type heat exchanger of FIG. 16 and FIG. 17. FIG. 19 is a perspective view of a plate type heat exchanger according to still another embodiment of the present invention. FIG. 20 is a view for explaining the flow of the heat exchange medium in the plate type heat exchanger of FIG. FIG. 21 is an explanatory view of the flow mode of the heat exchange medium in the first flow passage of the plate type heat exchanger according to still another embodiment of the present invention. FIG. 22 is a diagram for describing the flow mode of the heat exchange medium in the second flow path in one section area of the plate type heat exchanger according to the embodiment. FIG. 23 is a view for explaining the flow mode of the heat exchange medium in the second flow path in another section area of the plate type heat exchanger according to the embodiment. FIG. 24 is a view for explaining the flow mode of the heat exchange medium in the second flow path in another section area of the plate type heat exchanger according to the embodiment.

  Hereinafter, a plate type heat exchanger concerning one embodiment of the present invention is explained with reference to an accompanying drawing.

  As shown in FIGS. 1 and 2, the plate heat exchanger 1 includes a main body 2. In the present embodiment, the plate type heat exchanger 1 includes a plurality of flow path forming headers 3, 4, 5, 6 connected to the main body 2.

  As shown in FIGS. 2 to 5, the main body 2 includes a plurality of heat transfer plates 7... Stacked in the first direction. As shown in FIGS. 3 to 5, the main body 2 has a first flow passage Ra for circulating the heat exchange medium A and a second flow passage Rb for circulating the heat exchange media B1, B2 and B3. The first flow passage Ra and the second flow passage Rb are alternately formed in the first direction with the heat transfer plates 7 as boundaries.

  As shown in FIGS. 3 to 7, either of the inlet for supplying the heat exchange medium A to the first flow passage Ra or the outlet for discharging the heat exchange medium A from the first flow passage Ra as shown in FIGS. Is the first open section 200..., And the plurality of first open sections 200... Aligned in the first direction on the outer periphery of the main body section 2 and the heat exchange medium A supplied to the first flow path Ra A second opening 210 which is the other inlet (in the present embodiment, the outlet) for discharging the heat exchange medium A from the inlet or the first flow passage Ra. Heat exchange mediums B1, B2, B3 from a plurality of second open sections 210... Aligned in the direction and inlets or second flow paths Rb supplying the heat exchange mediums B1, B2, B3 to the second flow path Rb Third opening to be one of the outlets to be discharged (in the embodiment, the inlet) 220, a plurality of third open portions 220 aligned in the first direction on the outer periphery of the main body 2, and inlets for supplying the heat exchange media B1, B2 and B3 to the second flow path Rb or The fourth open portion 230... Serving as the other of the outlets (the outlet in this embodiment) for discharging the heat exchange media B1, B2, B3 from the second flow path Rb. And a plurality of fourth opening portions 230... Aligned in the first direction.

  That is, on the outer periphery of the main body 2, a first opening group 20 in which a plurality of first opening sections 200... Are aligned in a first direction, and a plurality of second opening sections 210. A fourth opening group 21 in which a second opening group 21 and a plurality of third opening sections 220 are aligned in a first direction, and a fourth opening group in which a plurality of fourth opening sections 230 are aligned in the first direction And 23 are formed.

  In the present embodiment, each of the first opening group 20 and the second opening group 21 is provided one by one, and each of the third opening group 22 and the fourth opening group 23 is plural.

  The first opening group 20 and the second opening group 21 correspond to each other, and the third opening group 22 and the fourth opening group 23 correspond to each other. In the present embodiment, the first opening group 20 and the second opening group 21 are paired with each other, and the third opening group 22 and the fourth opening group 23 are paired with each other. .

  As shown in FIGS. 3, 6 and 7, the first opening group 20 and the second opening group 21 are formed over the entire range or substantially the entire range in the first direction of the main body 2, respectively.

  In the present embodiment, since there are a plurality of third opening portion groups 22 and a plurality of fourth opening portion groups 23, as shown in FIGS. 4 to 7, they are formed in a partial range of the main portion 2 in the first direction. Ru.

  The plurality of third opening groups 22 are arranged in different ranges (positions) in the first direction. Specifically, in the present embodiment, the main body portion 2 is a plurality of divided areas S1, S2, and S3 each divided into a predetermined range in the first direction, and the plurality of divided areas aligned in the first direction Areas S1, S2 and S3 are set. Along with this, the third opening portion group 22 is disposed for each of the divided regions S1, S2, and S3.

  Then, the third opening group 22 in the divided areas S1, S2 and S3 adjacent in the first direction is at different positions in the circumferential direction centering on the virtual line (center line of the main body 2) extending in the first direction. Be placed.

  Specifically, as shown in FIGS. 6 and 7, in each of the plurality of divided areas S1, S2, and S3 aligned in the first direction, the plurality of divided areas D1, D2, D3, D4, and D5 aligned in the circumferential direction , D6 are set. Based on this, the third open portion group 22 in the divided areas S1, S2 and S3 adjacent in the first direction is arranged in the divided areas D2 and D3 located at different positions in the circumferential direction, as shown in FIG. . In the present embodiment, the third opening portion group 22 disposed in each of the divided regions S1, S2, and S3 adjacent in the first direction is two adjacent in the circumferential direction so as to be disposed at different positions in the circumferential direction. It is arranged in one of the two divided areas D2 and D3.

  The plurality of fourth opening groups 23 are disposed at different positions in the first direction. Specifically, in the present embodiment, as described above, the main body portion 2 includes the plurality of divided areas S1, S2, and S3 each divided into a predetermined range in the first direction, and in the first direction A plurality of divided areas S1, S2 and S3 are set. Along with this, the fourth opening group 23 is disposed for each of the divided areas S1, S2 and S3 as shown in FIGS. 4 and 5.

  Then, the fourth opening group 23 in the divided areas S1, S2 and S3 adjacent in the first direction is at different positions in the circumferential direction centering on the virtual line (center line of the main body 2) extending in the first direction. Be placed.

  Specifically, as described above, a plurality of divided areas D1, D2, D3, D4, D5, D6 arranged in the circumferential direction are set in each of the plurality of divided areas S1, S2, S3 arranged in the first direction. Ru. Based on this, the fourth open portion group 23 located in the divided areas S1, S2 and S3 adjacent in the first direction is arranged in the divided areas D5 and D6 located at different positions in the circumferential direction, as shown in FIG. . In the present embodiment, the fourth open portion group 23 disposed in each of the divided regions S1, S2, and S3 adjacent in the first direction is two adjacent in the circumferential direction so as to be disposed at different positions in the circumferential direction. It is arranged in any one of the two divided areas D5 and D6.

  In the present embodiment, the fourth opening group 23 is disposed in the division areas D5, D6 located at positions corresponding to the division areas D2, D3 in which the third opening section group 22 as a pair is disposed.

  As shown in FIGS. 8 and 9, each of the plurality of heat transfer plates 7 has a first surface Sa and a second surface Sb opposite to the first surface Sa in the first direction.

  As shown in FIG. 8, a plurality of concave streaks 70 and a plurality of convex streaks 71 are formed on the first surface Sa of the heat transfer plate 7. In the first surface Sa of the heat transfer plate 7, the grooves 70 and the ridges 71 are arranged in parallel, and alternately arranged in the direction orthogonal to the longitudinal direction of the grooves 70 and the ridges 71.

  In the present embodiment, the concave streaks 70 and the convex streaks 71 of the first surface Sa of the heat transfer plate 7 include a plurality of linear portions 700 and 710 disposed continuously. In the first surface Sa of the heat transfer plate 7, the adjacent straight portions 700 and 710 are virtual lines which are connected to each other at their ends and extend in a direction orthogonal to the first direction, and are connected to each other It is inclined with respect to a virtual line (not shown) passing through the part (connection point) P. In the present embodiment, in the first surface Sa of the heat transfer plates 7, the adjacent straight portions 700 and 710 are arranged symmetrically with reference to an imaginary line passing through the end portions (connection points P) connected to each other. .

  As shown in FIG. 9, a plurality of concave streaks 70 and a plurality of convex streaks 71 are formed on the second surface Sb of the heat transfer plate 7. The heat transfer plates 7 are formed by press-forming a metal plate, and the concave stripes 70 of the second surface Sb are in a relationship between the convex stripes 71 of the first surface Sa and the front and back, and the convex stripes 71 of the second surface Sb are , And the relationship between the concave 70 and the front and back of the first surface Sa.

  Accordingly, the concave stripes 70 and the convex stripes 71 of the second surface Sb of the heat transfer plate 7 are formed in the same manner as the convex stripes 71 and the concave stripes 70 of the first surface Sa when viewed from the first direction. That is, in the second surface Sb of the heat transfer plate 7, the grooves 70 and the ridges 71 are arranged in parallel, and alternately arranged in the direction orthogonal to the longitudinal direction of the grooves 70 and the ridges 71.

  In the present embodiment, the concave streaks 70 and the convex streaks 71 of the second surface Sb of the heat transfer plate 7 include a plurality of linear portions 700 and 710 disposed continuously. In the second surfaces Sb of the heat transfer plates 7, the adjacent straight portions 700 and 710 are connected to each other at their ends and connected to an imaginary line (not shown) passing through the connected ends (connection points) P. It is inclined against. In the present embodiment, in the second surface Sb of the heat transfer plates 7, the adjacent straight portions 700 and 710 are arranged symmetrically with reference to an imaginary line passing through the connected ends.

  The ridges 71 formed on the first surface Sa and the second surface Sb of each of the plurality of heat transfer plates 7 are capable of crossing and abutting with the ridges 71 of the heat transfer plate 7 adjacent in the first direction. It is formed.

  Each of the plurality of heat transfer plates 7 is formed in a polygonal shape including at least five corner portions 72 as viewed from the first direction, as shown in FIGS. In the present embodiment, each of the plurality of heat transfer plates 7 is formed in a hexagonal shape as viewed from the first direction. More specifically, each of the plurality of heat transfer plates 7 is formed in a regular hexagonal shape as viewed from the first direction.

  Accordingly, the contours of the heat transfer plates 7 include six corner portions 72 as viewed from the first direction. Further, the heat transfer plates 7 include six straight sides 73, 74, and 75 connecting the apexes of the adjacent corner portions 72. In the present embodiment, the angles of the six corner portions 72 are the same, and the lengths of the six sides 73, 74, 75 are the same. Therefore, in the contours of the heat transfer plates 7, the six sides 73, 74, 75 are a pair of first sides 73 spaced apart in a second direction orthogonal to the first direction, each of which is a first A pair of first sides 73 extending in a third direction orthogonal to the direction and the second direction and a pair of second sides 74 spaced in a direction intersecting the first direction A pair of second sides 74 extending in a direction orthogonal to the pair and a pair of third sides 75 spaced in a direction intersecting the first direction, each being orthogonal to the mutually spaced direction And a pair of third sides 75 extending in the direction. The pair of second sides 74 and the pair of third sides 75 are arranged symmetrically with respect to an imaginary line (not shown) extending in the second direction through the center of the first side 73.

  Along with this, in the present embodiment, the straight line portions 700 and 710 of the concave streaks 70 and the convex streaks 71 of the first surface Sa of the heat transfer plate 7 are sides 73, 74, which are included in the contour of the heat transfer plate 7. It is formed to extend in a direction intersecting each of 75 (first side 73, second side 74, third side 75). As described above, since the concave stripes 70 and the convex stripes 71 of the second surface Sb are in a front and back relationship with the convex stripes 71 and the concave stripes 70 of the first surface Sa, the concave surfaces of the second surface Sb of the heat transfer plate 7. The straight portions 700 and 710 of the ridge 70 and the ridges 71 also correspond to the sides 73, 74 and 75 (first side 73, second side 74, third side 75) included in the outline of the heat transfer plate 7. And extend in a cross direction.

  As shown in FIGS. 10 and 11, the plurality of heat transfer plates 7 are superimposed so as to match the contours as viewed from the first direction. In this state, the ridges 71 of the adjacent heat transfer plates 7 abut each other (see FIGS. 3 to 5).

  In the present embodiment, the plurality of heat transfer plates 7 are formed in a polygonal shape (hexagonal shape) when viewed from the first direction, and are superimposed in a state where their respective contours match when viewed from the first direction, The main body 2 is formed in a polygonal column shape.

  Accordingly, on the outer periphery of the main body portion 2, a plurality of planar regions in which the first side 73, the second side 74, and the third side 75 of the plurality of heat transfer plates 7 are arranged in the first direction One) formed. Along with this, in the present embodiment, areas obtained by dividing the planar areas in which the sides 73, 74 and 75 of the plurality of heat transfer plates 7 are arranged into predetermined areas in the first direction are divided areas S1, S2 and S3. It is done. In addition, since the corner portions 72 of the plurality of heat transfer plates 7 are arranged in a line in the first direction on the outer periphery of the main body portion 2, lines in which the corner portions 72 are arranged are divided regions D1, D2, D3, D4, It is set as a boundary between D5 and D6.

  Then, as described above, in the state where the plurality of heat transfer plates 7 are superimposed in the first direction, as shown in FIGS. 3 to 7, the heat transfer plates adjacent in the first direction to define the first flow passage Ra. 7 are sealed between the sides 73, 74, 75 other than the side 73 that defines the first open portion 200 ... and the second open portion 210 ..., and adjacent in the first direction to define a second flow path Rb The heat transfer plates 7 are sealed between the sides 73, 74, 75 other than the sides 74, 75 that define the third opening 220... And the fourth opening 230.

  In the present embodiment, the heat transfer plates 7 adjacent to each other in the first direction to define the first flow paths Ra have sides 73 and 74 other than the sides 73 defining the first open portions 200 and the second open portions 210. , 75 are connected in a fluid-tight or airtight manner by welding. Further, the heat transfer plates 7 which define the second flow paths Rb adjacent to each other in the first direction have sides 73 and 74 other than the sides 74 and 75 which define the third opening 220 and the fourth opening 230. , 75 are connected in a fluid-tight or airtight manner by welding. 6 and 7, the portions 73, 73, 74, 74, 75, and 75 are connected (welded) to each other in a thick line.

  Thereby, the first open part 200 ..., the second open part 210 ..., the third open part 220 ... and the fourth open part 230 ... are straight sides 73, which are included in the contours of the heat transfer plates 7 adjacent to each other. It is defined by 74 and 75.

  And the outer periphery of the main-body part 2 is comprised so that connection of four types of flow-path formation headers 3,3,4,5 is possible. More specifically, as shown in FIG. 2, the plate type heat exchanger 1 according to the present embodiment has four flow passage forming headers 3, 4, 5, 6, and the first open portion 200. A first flow passage forming header 3 defining a flow passage communicating with the opening portion group 20), and a second flow passage forming header 4 defining a flow passage communicating with the second opening portion 210 (second opening portion group 21) , And the third flow passage forming header 5 defining a flow passage communicating with the third opening portion 220 (the third opening portion group 22) and the fourth opening portion 230 (the fourth opening portion group 23) And a fourth flow path forming header 6 defining a flow path.

  Accordingly, as shown in FIG. 10 and FIG. 11, the first connection portion 24 for connecting the first flow path forming header 3 and the second flow path forming header 4 are connected to the outer periphery of the main body 2. A third connection portion 26 for connecting the second connection portion 25, the third flow path forming header 5, and a fourth connection portion 27 for connecting the fourth flow path forming header 6 are set.

  As shown in FIG. 10, the first connection portion 24 is an annular region set along the outline of the first open portion group 20. In the present embodiment, the first open portion group 20 is a planar member included in the outer periphery of the main body 2 in which the sides 73 (in the present embodiment, one first side 73 in the present embodiment) of the plurality of heat transfer plates 7. In the region, since the first connection portion 24 is formed over the entire range or substantially the entire range in the first direction of the main body portion 2, the first connection portion 24 has sides 73 of the plurality of heat transfer plates 7 (in the present embodiment, one side). The first side 73 is formed along the outline of a planar region (a region obtained by combining the divided regions D1 present in each of the plurality of divided regions S1, S2, and S3).

  As shown in FIG. 11, the second connection portion 25 is an annular region set along the outline of the second opening portion group 21. In the present embodiment, the second open portion group 21 is a planar member included in the outer periphery of the main portion 2 in which the sides 73 of the plurality of heat transfer plates 7 (in the present embodiment, the other first side 73) are arranged. In the region, since the second connection portion 25 is formed over the entire range or substantially the entire range in the second direction of the main body portion 2, the second connection portion 25 is a side 73 of the plurality of heat transfer plates 7 (in the present embodiment, the other The first side 73 is formed along the outline of the planar regions (regions obtained by combining the divided regions D2 present in each of the plurality of divided regions S1, S2, and S3).

  As shown in FIG. 10, the third connection portion 26 is an annular region set along the outline of the third opening portion group 22. In the present embodiment, the third opening portion group 22 includes the sides 74 and 75 (in the present embodiment, one second side 74 and one third side 75, respectively) of the plurality of heat transfer plates 7. The third connection portion 26 is formed over the entire area of a part of the planar region included in the outer periphery of the main body 2 (a single divided area D2, D3 in the divided areas S1, S2, S3). Is formed along the outline of a single divided area D2, D3 within the divided areas S1, S2, S3 in which the third opening portion group 22 is present.

  As shown in FIG. 11, the fourth connection portion 27 is an annular region set along the outline of the fourth opening portion group 23. In the present embodiment, the fourth opening group 23 includes the sides 74 and 75 of the plurality of heat transfer plates 7... (In the present embodiment, the other second side 74 and the other third side 75 are arranged) The fourth connection portion 27 is formed over the entire area of a part of the planar region included in the outer periphery of the main body 2 (a single divided area D5, D6 in the divided areas S1, S2, S3). Is formed along the outline of a single divided area D5, D6 within the divided areas S1, S2, S3 in which the fourth open portion group 23 is present.

  Returning to FIG. 2, the first flow path forming header 3 is a first main body portion 30 that defines a flow path, and a tubular first pipe connection portion 31 having an inner hole, and the inner hole is a first main body portion 30. And a first pipe connection 31 connected to the first main body 30 in communication with the flow path defined above.

  The first main body portion 30 is formed in a box shape and has one surface opened. Specifically, the first main body portion 30 has a plate-like first top plate portion 300 having a thickness in one direction, a first end in one direction, and a second end opposite to the first end. A first frame portion 301 having an annular shape, the first end portion being connected to the outer peripheral end of the first top plate portion 300, and the first top plate portion 300 and the first frame portion 301 The area surrounded by and is the flow path.

  The first frame portion 301 is formed corresponding to the outline of the first open portion group 20. In the present embodiment, the first open portion group 20 is a planar member included in the outer periphery of the main body 2 in which the sides 73 (in the present embodiment, one first side 73 in the present embodiment) of the plurality of heat transfer plates 7. Since the first frame portion 301 is formed over the entire range or substantially the entire range in the first direction of the main body portion 2 in the region, the first frame portion 301 is a side 73 of the plurality of heat transfer plates 7 (in the present embodiment, one side). The first side 73) is formed corresponding to the outline of the planar region. Along with this, the second end of the first frame portion 301 functions as a first connected portion 302 connected to the first connection portion 24 of the main body portion 2.

  In the present embodiment, the first connected portion 302 (second end) of the first frame portion 301 of the first flow path forming header 3 is liquid-tight or airtight with respect to the first connection portion 24 of the main body 2 by welding. Connected

  The first pipe connection portion 31 is a first cylindrical portion 310 having an inner hole, and a first flange portion for connecting a pipe with the first cylindrical portion 310 having one end and the other end in one direction. And an annular first flange portion 311 connected to one end of the first tubular portion 310. The other end of the first tubular portion 310 of the first pipe connection portion 31 is connected to the first main body portion 30 so that the inner hole is communicated with the flow path defined by the first main body portion 30.

  The second flow path forming header 4 is a second main body 40 defining a flow path, and a cylindrical second pipe connection 41 having an inner hole, and the flow in which the inner hole is defined by the second main body 40 And a second pipe connection 41 connected to the second main body 40 in communication with the passage.

  The second main body portion 40 is formed in a box shape and has one surface opened. Specifically, the second main body 40 has a plate-like second top plate 400 having a thickness in one direction, and a first end in one direction and a second end opposite to the first end. A second frame portion 401 having an annular second frame portion 401 having a first end connected to the outer peripheral end of the second top plate portion 400, and the second top plate portion 400 and the second frame portion 401 The area surrounded by and is the flow path.

  The second frame portion 401 is formed corresponding to the outline of the second open portion group 21. In the present embodiment, the second open portion group 21 is a planar member included in the outer periphery of the main portion 2 in which the sides 73 of the plurality of heat transfer plates 7 (in the present embodiment, the other first side 73) are arranged. Since the second frame portion 401 is formed over the entire range or substantially the entire length in the first direction of the main body portion 2 in the region, the second frame portion 401 is a side 73 of the plurality of heat transfer plates 7 (in the present embodiment, one side It is formed corresponding to the outline of the planar region in which the first side 73 is arranged. Along with this, the second end of the second frame portion 401 functions as a second connected portion 402 connected to the second connection portion 25 of the main body portion 2.

  In the present embodiment, the second connected portion 402 (second end) of the second frame portion 401 of the second flow path forming header 4 is liquid-tight or airtight by welding with respect to the second connection portion 25 of the main body 2. Connected to

  The second pipe connection portion 41 is a second cylindrical portion 410 having an inner hole, and a second flange portion for connecting a pipe with the second cylindrical portion 410 having one end and the other end in one direction. And an annular second flange portion 411 connected to one end of the second cylindrical portion 410. The other end of the second tubular portion 410 of the second pipe connection portion 41 is connected to the second main portion 40 so that the inner hole is in communication with the flow path defined by the second main portion 40.

  The third flow path forming header 5 is a third main body 50 defining a flow path, and a tubular third pipe connection 51 having an inner hole, the flow having the inner hole defined by the third main body 50. And a third pipe connection 51 connected to the third main body 50 in communication with the passage.

  The third main body portion 50 is formed in a box shape and has one surface opened. Specifically, the third main body portion 50 includes a plate-like third top plate portion 500 having a thickness in one direction, a first end in one direction, and a second end opposite to the first end. A third frame portion 501 having an annular third frame portion 501 having a first end connected to the outer peripheral end of the third top plate portion 500; and the third top plate portion 500 and the third frame portion 501. The area surrounded by and is the flow path.

  The third frame portion 501 is formed to surround a necessary number of third opening portions 220 among the plurality of third opening portions 220 constituting the third opening portion group 22. In the present embodiment, the third opening portion group 22 includes the sides 74 and 75 (in the present embodiment, one second side 74 and one third side 75, respectively) of the plurality of heat transfer plates 7. It is formed in divided regions S1, S2 and S3 which are a part of a planar region included in the outer periphery of the main body portion 2. Therefore, the third frame portion 501 is formed to surround the necessary number of third opening portions 220 in the divided regions S1, S2, and S3.

  In the present embodiment, the third frame portion 501 is a single unit located in the divided regions S1, S2, and S2 so as to surround all of the plurality of third opening portions 220 that make up the third opening portion group 22. It is formed corresponding to the contours of divided areas D2, D3. Along with this, the second end of the third frame portion 501 functions as a third connected portion 502 connected to the third connecting portion 26 of the main body portion 2.

  In the present embodiment, the third connected portion 502 (second end) of the third frame portion 501 of the third flow path forming header 5 is liquid-tight or airtight by welding to the third connection portion 26 of the main body 2. Connected to

  The third pipe connection portion 51 is a third cylindrical portion 510 having an inner hole, and a third flange portion for connecting a pipe with the third cylindrical portion 510 having one end and the other end in one direction. And an annular third flange portion 511 connected to one end of the third cylindrical portion 510. In the third pipe connection portion 51, the other end of the third cylindrical portion 510 is connected to the third main body portion 50, so that the inner hole is communicated with the flow path defined by the third main body portion 50.

  The fourth flow path forming header 6 is a fourth main body portion 60 which defines a flow path, and a tubular fourth pipe connection portion 61 having an inner hole, in which the inner hole is defined by the fourth main body portion 60 And a fourth pipe connection 61 connected to the fourth main body 60 in communication with the passage. The fourth main body portion 60 is formed in a box shape and has one surface opened.

  Specifically, the fourth main body portion 60 includes a plate-like fourth top plate portion 600 having a thickness in one direction, and a first end in one direction and a second end opposite to the first end. And a fourth frame portion 601 having a first end connected to the outer peripheral end of the fourth top plate portion 600, and the fourth top plate portion 600 and the fourth frame portion 601. The area surrounded by and is the flow path.

  The fourth frame portion 601 is formed to surround a necessary number of fourth opening portions 230 among the plurality of fourth opening portions 230 constituting the fourth opening portion group 23. In the present embodiment, the fourth opening group 23 includes the sides 74 and 75 of the plurality of heat transfer plates 7... (In the present embodiment, the other second side 74 and the other third side 75 are arranged) It is formed in divided regions S1, S2 and S3 which are a part of a planar region included in the outer periphery of the main body portion 2. Therefore, the fourth frame portion 601 is formed to surround the necessary number of fourth opening portions 230 in the divided regions S1, S2, and S3.

  In the present embodiment, the fourth frame portion 601 is a single unit located in the divided regions S1, S2, and S3 so as to surround all of the plurality of fourth open portions 230 that configure the fourth open portion group 23. It is formed corresponding to the contours of divided regions D5 and D6. Along with this, the second end of the fourth frame portion 601 functions as a fourth connected portion 602 connected to the fourth connection portion 27 of the main body portion 2.

  In the present embodiment, the fourth connected portion 602 (second end) of the fourth frame portion 601 of the fourth flow path forming header 6 is liquid-tight or airtight by welding to the fourth connection portion 27 of the main body 2. Connected to

  The fourth pipe connection portion 61 is a fourth cylindrical portion 610 having an inner hole, and a fourth flange portion for connecting a pipe with a fourth cylindrical portion 610 having one end and the other end in one direction. And an annular fourth flange portion 611 connected to one end of the fourth cylindrical portion 610. In the fourth pipe connection portion 61, the other end of the fourth cylindrical portion 610 is connected to the fourth main portion 60, so that the inner hole is in communication with the flow path defined by the fourth main portion 60.

  The plate type heat exchanger 1 according to the present embodiment is as described above, and the first pipe connection portion 31 (the first flange portion 311) of the first flow path forming header 3 is used as a supply source of the heat exchange medium A. Connected pipes (not shown) are connected, and pipes (not shown) connected to the discharge destination of the heat exchange medium A are connected to the second pipe connection portion 41 (second flange portion 411) of the second flow path forming header 4 Be done. Further, in the present embodiment, each of the third pipe connection portions 51 (third flange portions 511) of the plurality of third flow path formation headers 5 corresponding to the plurality of third opening portion groups 22 is heated Pipes (not shown) connected to different supply sources of the exchange media B1, B2, B3 are connected, and fourth pipe connection parts of the plurality of fourth flow path formation headers 6 corresponding to the plurality of fourth open part groups 23 respectively Piping (not shown) connected to different discharge destinations or common discharge destinations of the heat exchange media B1, B2, B3 is connected to each of the 61 (fourth flange portion 611).

  Accordingly, as shown in FIG. 12, the heat exchange medium A supplied to the first flow path forming header 3 has a plurality of first open portions 200 on the outer periphery of the main body 2 as inlets. The heat exchange medium A flowing into the first flow passage Ra and flowing in each of the plurality of first flow passages Ra forms the second flow with each of the plurality of second open portions 210 on the outer periphery of the main body 2 as an outlet. It flows into the flow path in the path formation header 4 and is finally discharged to the discharge destination.

  As shown in FIGS. 13 to 15, the heat exchange media B1, B2 and B3 having different supply sources supplied to the plurality of third flow path forming headers 5 are divided into the divided areas S1, S2, and so on. In S3, the plurality of third opening portions 220 on the outer periphery of the main body 2 and each of the plurality of third opening portions 220 communicating with the flow path of the third flow path forming header 5 as an inlet The heat exchange medium A which has flowed into the plurality of second flow paths Rb and circulated in each of the plurality of second flow paths Rb is a plurality of fourth opening portions 230 on the outer periphery of the main body portion 2. Flowing into the flow path in the fourth flow path forming header 6 with each of the plurality of fourth opening portions 230 communicating with the flow path defined by the fourth flow path forming header 6 as an outlet, and finally being discharged to the discharge destination Exhausted.

  Thus, the heat exchange medium A flowing through the first flow passage Ra and the heat exchange mediums B1, B2, B3 flowing through the second flow passage Rb exchange heat via the heat transfer plate 7.

  Thereby, in the plate type heat exchanger 1 according to the present embodiment, even if it is one unit, it is supplied from the common supply source with each of the heat exchange media B1, B2, B3 to be subjected to different supply sources. Heat exchange with the heat exchange medium A with the required performance.

  As described above, the plate-type heat exchanger 1 according to the present embodiment includes the plurality of heat transfer plates 7 stacked in the first direction and the heat exchange medium A with the heat transfer plates 7 as boundaries. The heat exchange medium A is provided with a main portion 2 in which a first flow passage Ra to be circulated and a second flow passage Rb to circulate the heat exchange media B1, B2 and B3 are alternately formed. The first open portion 200... Which is either one of an inlet for supplying heat or an outlet for discharging the heat exchange medium A from the first flow path Ra, and a plurality of first open portions 200 aligned in the first direction on the outer periphery ... and the second open portion 210 which is the other of the inlet for supplying the heat exchange medium A to the first flow path Ra or the outlet for discharging the heat exchange medium A from the first flow path Ra, A plurality of second open sections 210... Aligned in one direction and second channel Rb A third open portion 220 which is either the inlet for supplying the exchange media B1, B2 or B3 or the outlet for discharging the heat exchange media B1, B2 or B3 from the second flow passage Rb. Heat exchange media B1, B2,... From a plurality of third open portions 220... Aligned in the first direction, and inlets or second flow channels Rb supplying heat exchange media B1, B2, B3 to the second flow channel Rb. A plurality of fourth opening portions 230 which are the other of the outlets for discharging B3 and which includes a plurality of fourth opening portions 230 aligned in the first direction on the outer periphery A first flow path forming header 3 defining a single flow path communicating with 200... A second flow path forming header 4 defining a single flow path communicating with a plurality of aligned second openings 210. A plurality of third openings 220... And a plurality of fourth openings 230 in a desired range of the plurality of fourth openings 230... Defining a single flow passage communicating with the three openings 220. A fourth flow path forming header 6 that defines the flow paths in communication is connectable.

  According to the above configuration, the first opening portion 200 ... which becomes either the inlet for supplying the heat exchange medium A to the first flow path Ra or the outlet for discharging the heat exchange medium A from the first flow path Ra, ..., the first flow path Ra The second opening portion 210 which is either the inlet for supplying the heat exchange medium A or the outlet for discharging the heat exchange medium A from the first flow passage Ra, the heat exchange mediums B1, B2,. Third open portion 220, which is either the inlet for supplying B3 or the outlet for discharging the heat exchange media B1, B2, B3 from the second flow path Rb, and the heat exchange medium for the second flow path Rb There is a fourth opening 230 on the outer periphery of the main body 2, which is the other of the inlets for supplying B1, B2 and B3 or the outlets for discharging the heat exchange media B1, B2 and B3 from the second flow path Rb. Therefore, the plurality of heat transfer plates 7 stacked in the first direction Each is made to face the heat transfer plate 7 ... and the entire surface or substantially the entire surface adjacent in the first direction. Thereby, the area | region which contributes to heat exchange with heat exchange medium A which distribute | circulates 1st flow path Ra, and heat exchange medium B1, B2, B3 which distribute | circulates 2nd flow path Rb becomes the same or substantially the same. Therefore, equalization of heat exchange efficiency in each of a plurality of 2nd channel Rb is attained.

  Further, by connecting the first flow passage forming header 3, the second flow passage forming header 4, the third flow passage forming header 5, and the fourth flow passage forming header 6 to the main body portion 2, a desired flow passage configuration can be obtained. .

  That is, while the plurality of third opening parts 220 in the desired range are in communication with the flow path defined by the third flow path forming header 5, the plurality of fourth opening parts 230 in the desired range are the fourth flow In order to communicate by the channels defined by the channel forming header 6, the number and arrangement of the third channel forming header 5 and the fourth channel forming header 6 are appropriately determined to obtain a plurality of second streams within a desired range. The path Rb can be an independent flow path, or the plurality of second flow paths Rb in different ranges can be continuous flow paths.

  In the present embodiment, the main body 2 is a fourth opening in which the third opening group 22 in which the plurality of third openings 220 are aligned in the first direction and the plurality of fourth openings 230 are aligned in the first direction. A plurality of part groups 23 are provided, and different third opening part groups 22 are disposed at different positions in the outer peripheral direction centering on the first direction, and different fourth opening part groups 23 are outer peripheral direction centering on the first direction Are placed at different locations.

  According to this configuration, the third opening 220 communicating with the flow channel defined by the third flow channel forming header 5 and the fourth opening 230 communicating with the flow channel defined by the fourth flow channel forming header 6 Are arranged at a plurality of different positions in the outer peripheral direction, so the connection aspect (pattern) of the third flow path forming header 5 and the fourth flow path forming header 6 to the main body 2 is increased, and various flow path forms may be made. it can.

  In the present embodiment, each of the plurality of heat transfer plates 7 is formed in a polygonal shape including at least five corner portions 72 as viewed from the first direction, and the contours are made to match when viewed from the first direction. The first opening 200, the second opening 210, the third opening 220, and the fourth opening 230 are straight sides 73 included in the contours of the adjacent heat transfer plates 7. , 74, 75 are defined.

  According to this configuration, the main body portion 2 has an appearance polygonal pillar shape, and in each of the plurality of planar regions included in the outer peripheral surface, the plurality of first opening portions 200..., The plurality of second opening portions 210. And the plurality of fourth openings 230... Are aligned. Thereby, alignment etc. of the 1st flow-path formation header 3, the 2nd flow-path formation header 4, the 3rd flow-path formation header 5, and the 4th flow-path formation header 6 can be made easy and reliable.

  As described above, according to the plate type heat exchanger 1 according to the present embodiment, the heat exchange medium A and the heat exchange mediums B1, B2, and B3 to be treated are required without installing a plurality of them. The excellent effect that heat exchange can be performed can be achieved.

  The present invention is not limited to the above embodiment, and it is needless to say that appropriate modifications can be made without departing from the scope of the present invention.

  In the said embodiment, while the 1st open part 200 comprised the inlet of 1st flow path Ra and the 2nd open part 210 comprised the exit of 1st flow path Ra, it is not limited to this. For example, the first open portion 200 may constitute an outlet of the first flow passage Ra, and the second open portion 210 may constitute an inlet of the first flow passage Ra. That is, the first flow passage forming header 3 may be connected to the discharge destination of the heat exchange medium A, and the second flow passage forming header 4 may be connected to the supply source of the heat exchange medium A.

  Moreover, while the 3rd open part 220 constituted the entrance of the 2nd channel Rb and the 4th open part 230 constituted the outlet of the 2nd channel Rb, it is not limited to this. For example, the third opening 220 may constitute an outlet of the second flow passage Rb, and the fourth opening 230 may constitute an inlet of the second flow passage Rb. That is, while the third flow passage forming header 5 is connected to the discharge destination of the heat exchange media B1, B2, B3, the fourth flow passage forming header 6 is connected to the supply source of the heat exchange media B1, B2, B3. It may be done.

  In the above embodiment, each of the plurality of heat transfer plates 7 is formed into a hexagonal shape including at least six corner portions 72 as viewed from the first direction, whereby the main body portion 2 is formed into a hexagonal column shape. Not limited to this. For example, when each of the plurality of heat transfer plates 7 is formed into a polygonal shape as viewed from the first direction, each of the plurality of heat transfer plates 7 as viewed from the first direction has at least three corner portions 72. The main body portion 2 may be formed into a polygonal column shape by being formed into a polygonal shape.

  Moreover, in the said embodiment, although the main-body part 2 was formed in polygonal columnar shape by making each of several heat-transfer plate 7 ... into a polygonal shape seeing from a 1st direction, it is not limited to this. For example, the main body portion 2 may be formed in a cylindrical shape by making each of the plurality of heat transfer plates 7 circular as viewed from the first direction.

  Also in this case, the main body portion 2 is the first open portion 200 which is either the inlet for supplying the heat exchange medium A to the first flow passage Ra or the outlet for discharging the heat exchange medium A from the first flow passage Ra. A plurality of first open sections 200... Aligned in the first direction on the outer periphery, an inlet for supplying the heat exchange medium A to the first flow path Ra, or an outlet for discharging the heat exchange medium A from the first flow path Ra A plurality of second open parts 210 which are arranged in the first direction on the outer circumference and the second flow paths Rb are heat exchange mediums B1, B2 and B3 which are the other second open parts 210. A third opening 220 which is either one of an inlet for supplying or an outlet for discharging the heat exchange media B1, B2 and B3 from the second flow passage Rb, and a plurality of third opening 220 arranged in the first direction on the outer periphery Heat exchange media B1, B2,. A fourth open portion 230 which is the other of the inlet for supplying 3 and the outlet for discharging the heat exchange media B1, B2 and B3 from the second flow path Rb, and is aligned in the first direction on the outer periphery Of course, a plurality of fourth opening portions 230... May be provided.

  In the above embodiment, the main body 2 includes the plurality of third opening portion groups 22 and the plurality of fourth opening portion groups 23, and the third opening portion groups 22 in the adjacent divided regions S1, S2, and S3 are circumferentially The fourth open portion groups 23 in the adjacent divided areas S1, S2, and S3 are arranged at different positions in the circumferential direction, but the present invention is not limited thereto.

  For example, like the first opening group 20 and the second opening group 21, each of the third opening group 22 and the fourth opening group 23 covers the entire range (a plurality of sections in the first direction of the main body 2) It may be formed in the entire range of the combined area of the areas S1, S2, S3) or substantially the entire range.

  In this case, each of the plurality of third flow path forming headers 5 is the same as the third open portion 220 of the required number of the third open portions 220 of the third open portion group 22. Among the plurality of fourth opening portions 230 ... that are connected to the main body 2 so as to communicate the flow paths to be defined, and each of the plurality of fourth flow path forming headers 6 constitutes the fourth opening portion group 23. It should just be connected to the main-body part 2 so that the flow path to define itself may be made to communicate with the required number of 4th open part 230 ....

  In the above embodiment, pipes connected to different supply sources of the heat exchange media B1, B2, B3 are connected to the plurality of third flow path forming headers 5 respectively, and the plurality of fourth flow path forming headers 6 are respectively connected Although the pipes connected to different discharge destinations or common discharge destinations of the heat exchange media B1, B2, and B3 are connected, the present invention is not limited thereto.

  For example, the fourth flow path forming header 6 is disposed corresponding to one or more of the two division areas S1 and S3 sandwiching the division area S2, and the flow paths defined by the fourth flow path forming headers 6 are arranged. On the premise that the fourth open part group 23 (a plurality of fourth open parts 230) in the corresponding divided areas S1 and S3 communicate with each other, as shown in FIG. The plurality of third flow path formation headers 5 provided corresponding to the third opening portion groups 22 in the divided regions S1 and S3 may be connected by piping.

  In addition, the fourth flow path forming header 6 is disposed corresponding to each of the two division areas S1 and S3 sandwiching the division area S2 in one or more, and the flow paths defined by the fourth flow path formation headers 6 On the premise that the fourth open part group 23 (a plurality of fourth open parts 230) in the corresponding divided areas S1 and S3 communicate with each other, as shown in FIG. A single third flow path forming header 5 may be disposed so as to straddle the third opening group 22 in the divided regions S1 and S3.

  In this way, as shown in FIG. 18, the plurality of second flow paths Rb in different divided regions S1 and S3 become continuous flow paths through the flow paths defined by the third flow path forming header 5.

  Specifically, the fourth open portion 230 (the fourth open portion 230 communicating with the flow passage of the fourth flow passage forming header 6 in one of the divided regions S1) in the one divided region S1 is in the second divided region S1. The third opening portion 220 (the third opening portion 220 communicating with the flow path of the third flow path forming header 5) in one of the divided areas S1 while being the inlet of the flow path Rb is located in the one divided area S1 It becomes an outlet of two flow paths Rb.

  In addition, the third opening 220 (the third opening 220 communicating with the flow passage of the third flow passage forming header 5) in the other divided region S1 is at the inlet of the second flow passage Rb in the other divided region S3. And the fourth open part 230 in the other divided area S3 (the fourth open part 230 communicating with the flow path of the other fourth flow path forming header 6) in the other divided area S3 It is the exit of Rb.

  Therefore, when the heat exchange medium B1 is supplied to one fourth flow path forming header 6, the heat exchange medium B1 flows through the second flow path Rb of the one divided area S1, and then the third flow The second channel Rb of the other divided area S3 flows through the channel defined by the channel forming header 5 and flows out to the channel defined by the other fourth channel forming header 6.

  As a result, the opportunity for heat exchange medium B1 to flow through the second flow passage Rb (the opportunity to exchange heat with the heat exchange medium A) increases, so the heat exchange medium B1 only passes through the second flow passage Rb once. In this case, when the required heat exchange can not be performed, the heat exchange medium B1 can be brought into the required properties or temperature state.

  In addition, the fourth flow path forming header 6 is arranged to correspond to the required number of fourth openings 230 of the plurality of fourth openings 230 constituting the fourth opening group 23 in the single divided area S1. Another fourth flow path is disposed to correspond to the remaining fourth open portion 230 among the plurality of fourth open portions 230 constituting the fourth open portion group 23 in the single divided area S1. Assuming that the formation header 6 is disposed, as shown in FIG. 19, a single third corresponding to the third opening portion group 22 (plurality of third opening portions 220) in the single sectioned area S1. The three flow path forming header 5 may be disposed.

  In this way, as shown in FIG. 20, the plurality of second flow paths Rb become continuous flow paths via the flow paths defined by the third flow path formation header 5. Thereby, as in the plate type heat exchanger 1 shown in FIGS. 16 and 17, the opportunity for the heat exchange medium B1 to flow through the second flow passage Rb (the opportunity for heat exchange with the heat exchange medium A) increases. When the required heat exchange can not be performed by passing the second heat exchange medium B1 only once through the second flow passage Rb, the required heat exchange medium B1 can be brought into the required properties or temperature state.

  In any of the above embodiments, the flow direction of the heat exchange media B1, B2, B3 is changed once in the third flow path forming header 5, but for example, at least the fourth flow connected to the supply source By arranging another fourth flow passage forming header 6 between the passage forming header 6 and the fourth flow passage forming header 6 connected to the discharge destination, the heat exchange medium B1 in the third flow passage forming header 5 , B2, and B3 may be changed twice. Further, the heat exchange medium is provided by arranging a plurality of at least one of the third flow passage forming header 5 and the fourth flow passage forming header 6 for communicating the second flow passages Rb in different ranges in the first direction. The distribution directions of B1, B2 and B3 may be changed three or more times. That is, the arrangement and the number of the third flow passage forming header 5 and the fourth flow passage forming header 6 may of course be changed according to the flow modes (forms) of the heat exchange media B1, B2 and B3.

  In the above-mentioned embodiment, although each of the 1st opening part group 20 and the 2nd opening part group 21 which become a pair (it has correspondence) was provided one each, it is not limited to this. For example, a plurality of at least one of the first opening portion group 20 and the second opening portion group 21 that are paired (in correspondence) may be provided. In this case, as shown in FIG. 21, at least one of the inlet and the outlet of the first flow passage Ra (the outlet in FIG. 21) can be plural. That is, the heat exchange media A can be merged or distributed in the first flow passage Ra.

  In addition, a plurality of at least one of the third opening portion group 22 and the fourth opening portion group 23 that are paired (in correspondence) may be provided. In this case, as shown in FIGS. 22 to 24, at least one of the inlet and the outlet (the outlet in FIGS. 22 to 24) of the second flow passage Rb can be plural. That is, the heat exchange media B1, B2, and B3 can be merged or distributed in the second flow path Rb. In addition, if different inlets of the second flow passage Rb are used, different heat exchange media B1, B2, B3 can be mixed in the second flow passage Rb, so, for example, different heat exchange media B1, B2, B3 The plate heat exchanger 1 can also function as a reactor if it is a chemical material that reacts by mixing and heating.

  In the above-described embodiment, the first and second surfaces Sa and Sb of the heat transfer plate 7 are the concave streaks 70 and the convex streaks 71 including the plurality of straight lines 700 and 710, respectively. The end portions (connection points P) of are connected to each other to form the concave streaks 70 and the convex streaks 71 having a bent shape, but the present invention is not limited thereto.

  For example, in each of the first surface Sa and the second surface Sb of the heat transfer plate 7, linear concave streaks 70 and convex streaks 71 may be formed over the entire length. Further, instead of the concave streaks 70 and the convex streaks 71, a plurality of concave portions (dents) and convex portions (projections) may be formed on the first surface Sa and the second surface Sb of the heat transfer plate 7, respectively. That is, the forms of the first surface Sa and the second surface Sb of the heat transfer plate 7 are appropriately changed according to the properties of the heat exchange medium A and the heat exchange media B1, B2 and B3 to be circulated and the required performance. do it.

  In the above embodiment, each of the first flow passage forming header 3, the second flow passage forming header 4, the third flow passage forming header 5, and the fourth flow passage forming header 6 is formed in a box shape, but is limited thereto I will not. For example, all or a part of the first flow path forming header 3, the second flow path forming header 4, the third flow path forming header 5, and the fourth flow path forming header 6 partially open the peripheral wall and It may be in the form of a pipe defining a flow path. Even in this case, the headers 3, 4, 5 and 6 are connected to the main body 2, and the flow path and the open part group (the first open part group) defined by the peripheral wall through a part (open part) of the peripheral wall By connecting the second opening portion group 21, the third opening portion group 22, and the fourth opening portion group 23), the same operation and effect as those of the above-described embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 1 ... Plate type heat exchanger, 2 ... main-body part, 3 ... 1st flow-path formation header (flow-path formation header), 4 ... 2nd flow-path formation header (flow-path formation header), 5 ... 3rd flow-path formation header (Flow path forming header), 6 ... fourth flow path forming header (flow path forming header), 7 ... heat transfer plate, 20 ... first open part group, 21 ... second open part group, 22 ... third open part Group 23 24 fourth opening group 24 first connection 25 25 second connection 26 26 third connection 27 27 fourth connection 30 first body 31 first piping Connection part 40: second body part 41: second pipe connection part 50: third body part 51: third pipe connection part 60: fourth body part 61: fourth pipe connection part 70: Recesses, 71, convex lines, 72, corner portions, 73, first side (side), 74, second side (side), 75, third side (side), 200, first open portion, DESCRIPTION OF SYMBOLS 10 ... 2nd opening part, 220 ... 3rd opening part, 230 ... 4th opening part, 300 ... 1st top plate part, 301 ... 1st frame part, 302 ... 1st connected part, 310 ... 1st cylindrical shape Sections 311: first flange portion 400: second top plate portion 401: second frame portion 402: second connected portion 410: second cylindrical portion 411: second flange portion 500: second portion Three top plate portion 501 third frame portion 502 third connected portion 510 third cylindrical portion 511 third flange portion 600 fourth top plate portion 601 fourth frame portion 602 fourth fourth connected portion 610 fourth cylindrical portion 611 fourth flange portion 700, 710 straight portion A heat exchange medium B1, B2, B3 heat exchange medium D1, D2 , D3, D4, D5, D6 ... divided area, P ... connection point, Ra ... first flow path, Rb ... second flow path, S1, S2, S3 ... divided area, a ... a first surface, Sb ... second surface

Claims (3)

  A plurality of heat transfer plates overlapped in the first direction, and a first flow path for circulating the heat exchange medium at each heat transfer plate and a second flow path for circulating the heat exchange medium are alternately formed. The main body portion is a first open portion which is either an inlet for supplying the heat exchange medium to the first flow path or an outlet for discharging the heat exchange medium from the first flow path, and the main body portion is A second open part, which is either the plurality of first open parts aligned in the first direction on the outer periphery, the inlet for supplying the heat exchange medium to the first flow path, or the outlet for discharging the heat exchange medium from the first flow path The heat exchange medium is discharged from the plurality of second open parts aligned in the first direction on the outer periphery of the main body, and the inlet or second flow path supplying the heat exchange medium to the second flow path A third opening, which is either one of the outlets to be A fourth opening which is the other of a plurality of aligned third openings and an inlet for supplying the heat exchange medium to the second flow path or an outlet for discharging the heat exchange medium from the second flow path; A first flow path forming header comprising a plurality of fourth openings aligned in a first direction on the outer periphery of the main body and defining a single flow channel in communication with the aligned first openings; A second channel forming header defining a single channel communicating with the plurality of second openings, and a plurality of third openings in a desired range of the plurality of aligned third openings A third flow path forming header defining a single flow path, and a fourth flow path forming header defining a flow path in communication with a plurality of fourth openings in a desired range of the plurality of fourth openings A plate type heat exchanger characterized by being connectable.   The main body portion includes a plurality of third opening groups in which a plurality of third openings are aligned in a first direction and a plurality of fourth opening groups in which a plurality of fourth openings are aligned in a first direction, and different third openings The plate according to claim 1, wherein the group is arranged at different positions in the outer peripheral direction centered on the first direction, and the different fourth opening group is arranged at different positions in the outer peripheral direction centered on the first direction. Heat exchanger.   Each of the plurality of heat transfer plates is formed in a polygonal shape including at least five corners when viewed from the first direction, and is superimposed so as to match the contour when viewed from the first direction, the first opening, The plate type heat exchanger according to claim 1 or 2, wherein the second open part, the third open part and the fourth open part are defined by straight sides included in the contours of the adjacent heat transfer plates.