WO2013061966A1 - Plate heat exchanger - Google Patents
Plate heat exchanger Download PDFInfo
- Publication number
- WO2013061966A1 WO2013061966A1 PCT/JP2012/077362 JP2012077362W WO2013061966A1 WO 2013061966 A1 WO2013061966 A1 WO 2013061966A1 JP 2012077362 W JP2012077362 W JP 2012077362W WO 2013061966 A1 WO2013061966 A1 WO 2013061966A1
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- WIPO (PCT)
- Prior art keywords
- gasket
- heat transfer
- plate
- flow path
- temperature fluid
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/10—Arrangements for sealing the margins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/20—Fastening; Joining with threaded elements
- F28F2275/205—Fastening; Joining with threaded elements with of tie-rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
Definitions
- the present invention relates to a plate heat exchanger that exchanges heat between a high-temperature fluid and a low-temperature fluid. Specifically, the present invention provides a low-temperature flow path and a flow path for circulating a high-temperature fluid between the heat transfer plates by laminating a plurality of heat transfer plates and interposing a gasket around the heat transfer plates. The present invention relates to a plate heat exchanger in which flow paths for circulating fluid are alternately formed.
- the plate heat exchanger includes a plurality of rectangular heat transfer plates 20 between a rectangular plate-shaped fixed frame 11 in a vertical posture and a rectangular plate-shaped moving frame 12 in a vertical posture. 20, are stacked in a vertical posture, and as shown in FIG. 9, the first flow path 1 and the second flow path 2 are alternately formed between the heat transfer plate 20 and the heat transfer plate 20, The high temperature fluid H and the low temperature fluid C are heat-exchanged by circulating the high temperature fluid H through the first flow path 1 and flowing the low temperature fluid C through the second flow path 2.
- passage holes 11a to 11d serving as the entrances and exits of the fluids H and C are provided, and the moving frame 12 is not provided with a passage hole.
- dedicated plates hereinafter referred to as “D plates” and “E plates”
- Passage holes are provided at the four corners of the D plate 31, and gaskets (hereinafter referred to as “D gaskets”) 140 surrounding the passage holes are interposed between the D plate 31 and the fixed frame 11. It is disguised.
- the E plate 32 is not provided with a passage hole.
- the heat transfer plate 20 is provided with passage holes 21 to 24 serving as inlets and outlets of the fluids H and C at the four corners, and a heat transfer portion (not numbered) is provided at the intermediate portion.
- the upper and lower passage holes 21 and 22 communicate with the heat transfer section, and the upper right and lower passage holes 23 and 24 open to the heat transfer section. Do not do it, or vice versa.
- the gasket 130 is a separate or illustrated flow path forming gasket 131 that surrounds the outer peripheral portion (inner side along the outer peripheral edge) of each heat transfer plate 20 and a communication path forming gasket 132 that surrounds the passage holes 21 to 24. It is said that it was formed integrally.
- the upper and lower communication passage forming gaskets 132, 132 surround the right upper and lower passage holes 23, 24, thereby blocking the left upper and lower passage holes 21, 22 and the first flow path 1.
- the first flow path 1 through which the high-temperature fluid H flows is provided by the flow path forming gasket 131 surrounding the left and upper passage holes 21 and 22 and the heat transfer section. Yes.
- the upper and lower communication passage forming gaskets 132 and 132 surround the left and upper passage holes 21 and 22, thereby blocking the right and upper passage holes 23 and 24 and the second flow path 2.
- the second flow path through which the low-temperature fluid C circulates because the flow path forming gasket 131 surrounds the upper and lower communication path forming gaskets 132 and 132 and the heat transfer section. 2 is provided.
- the high temperature fluid H flows downward from the upper left passage hole 21 through the first flow path 1 and is discharged from the lower left passage hole 22, and the low temperature fluid C is discharged from the lower right passage hole 24 to the second.
- the fluids H and C are heat-exchanged by flowing upward in the flow path 2 and being discharged from the upper right passage hole 23.
- a plurality of cassette plates in which the outer peripheral portions of the two heat transfer plates are permanently joined by laser welding or brazing are stacked in a vertical posture, and a gasket is interposed on the outer peripheral portion of the cassette plate.
- a junction type plate heat exchanger in which a first flow path or a second flow path is formed in a cassette plate, and a second flow path or a first flow path is formed between the cassette plate and the cassette plate. It is described in Document 1 and the like.
- Patent Document 2 discloses a plate heat exchanger having a double (two) gasket in which a part of a gasket for use and a part of a communication passage forming gasket are arranged in parallel. This plate heat exchanger is characterized in that the double gasket is fixed to the heat transfer plate without using an adhesive, and the other portion of the gasket is bonded to the heat transfer plate using an adhesive.
- the double gasket is interposed between the heat transfer plates that are stacked (alternately), so that there is no double gasket and a flow path that connects the heat transfer portion and the passage hole is formed. Yes.
- the portion of the heat transfer plate where the double gasket is not interposed is easily deformed by the internal pressure, but the double gasket is not bonded to the heat transfer plate by an adhesive. The pressure resistance is improved.
- the high-temperature fluid H flowing into the first flow path 1 flows through the communication passage 3 formed by the communication passage forming gasket 132 surrounding the passage hole 21 as shown in FIG. Yes.
- the communication path forming gasket 132 forming the communication path 3 through which the high temperature fluid H circulates has an inside (wet contact side) in contact with the high temperature fluid H in a wet heat environment. Therefore, thermal degradation proceeds such as hardening or softening due to long-term use.
- the main component of the gasket 132 for forming the communication path is a polymer (RH)
- it reacts with oxygen (O 2 ) when heated by the high temperature fluid H to generate an alkyl radical (R ⁇ ).
- O 2 oxygen
- the alkyl radical (R ⁇ ) reacts with oxygen to generate peroxy radical (ROO ⁇ ).
- the peroxy radical (ROO.) Reacts with the polymer (RH) to generate peroxide (ROOH).
- This peroxide (ROOH) is unstable and easily decomposes into alkoxy radicals (RO.) And hydroxyl radicals (OH.).
- the liquid contact side is in contact with the high temperature fluid H and the non-liquid contact side is in contact with the atmosphere.
- the main component polymer collapses due to the oxidative degradation reaction, the number of radicals increases, and molecular chain scission and cross-linking reactions proceed.
- the inherent elasticity of the rubber is lost, and the structure of the communication path forming gasket 132 is in a compression environment. This is due to insufficient surface pressure due to the progress of compression set and the development of cracks. Break occurs. Due to this breakage, the high temperature fluid H may leak from the communication path 3 into the second flow path and mix with the low temperature fluid C.
- the plate heat exchanger described in Patent Document 2 has a double gasket inside.
- the communication path forming gasket 132 forming the communication path 3 through which the high temperature fluid H flows is not doubled, oxidation deterioration may occur and the high temperature fluid H may leak to the outside.
- an object of the present invention is to provide a plate heat exchanger in which a communication path forming gasket that forms a communication path through which a high-temperature fluid flows is prevented from deteriorating.
- a plurality of heat transfer plates in which a plurality of passage holes are formed are stacked, and a flow path forming gasket is interposed between the outer peripheral portions of adjacent heat transfer plates.
- the first flow path through which the high-temperature fluid flows and the second fluid through which the low-temperature fluid flows are alternately formed with the heat transfer plate as a boundary, and the communication passage forming gaskets surrounding the passage holes are adjacent to each other.
- a communication path for allowing fluid to flow into and out of the first flow path and a communication path for allowing fluid to flow into and out of the second flow path are formed, and the communication path forming gasket includes the passage hole An inner gasket member surrounding the inner gasket and an outer gasket member surrounding the inner gasket.
- the communication path forming gasket may be doubled only between the heat transfer plates forming the communication path through which the high-temperature fluid flows. Good.
- the plate heat exchanger according to the present invention is formed by laminating a plurality of cassette plates in which the outer peripheral portions of two heat transfer plates having a plurality of passage holes are permanently connected, and for each adjacent cassette plate.
- a flow path forming gasket is interposed between the outer peripheral portions, and a communication path forming gasket surrounding the passage hole is interposed between adjacent heat transfer plates, so that the inside of the cassette plate and the interval between the cassette plates can be reduced.
- the first flow path through which the high temperature fluid flows or the second flow path through which the low temperature fluid flows are alternately formed, and the communication path forming gasket includes an inner gasket member surrounding the passage hole and an outer gasket member surrounding the inner gasket. And is doubled.
- a drainage hole is formed in the heat transfer plate between the inner gasket member and the outer gasket member of the communication path forming gasket.
- a configuration can be employed.
- an air supply hole is formed in the heat transfer plate between the inner gasket member and the outer gasket member between the communication path forming gaskets,
- a configuration in which an inert gas is filled in a sealed space surrounded by the inner and outer gasket members and the heat transfer plate can be employed.
- FIG. 1 It is a general
- FIG. 6 shows a second embodiment of the plate heat exchanger according to the present invention, and is an enlarged cross-sectional view of an essential part taken along line VV of FIG. It is a principal part expanded sectional view which shows 3rd Embodiment of the plate-type heat exchanger which concerns on this invention. It is a schematic perspective view which shows the conventional plate type heat exchanger. It is a general
- FIGS. A first embodiment of a plate heat exchanger according to the present invention will be described with reference to FIGS. However, the same parts as in the prior art will be described with the same reference numerals. In the following description, descriptions such as up, down, left, and right are examples of each embodiment, and it is needless to say that actual positions may be different.
- the plate heat exchanger includes a first flow path 1 and a second flow path between a heat transfer plate 20 and a heat transfer plate 20 as in the prior art. 2, the high-temperature fluid H is circulated through the first flow path 1, and the low-temperature fluid C is circulated through the second flow path 2.
- the first flow path 1 and the second flow path 2 are provided by a gasket 30 interposed between the heat transfer plate 20 and the heat transfer plate 20.
- a flow path forming gasket 31 surrounding the outer peripheral portion of the heat transfer plate 20 and a communication path forming gasket 32 surrounding the passage holes 21 to 24 are integrally formed (shown in FIGS. 1 and 2). Or it forms so that it may become another body (shown in FIG. 3).
- the boundary portion between the heat transfer portion and the passage holes 21 to 24 is shared.
- double line gasket a communication path forming gasket (hereinafter referred to as “double line gasket”) 32 provided with a communication path 3 through which the high-temperature fluid H flows. Is a double of the inner gasket member 32a and the outer gasket member 32b. Accordingly, double grooves are formed in the heat transfer plate 20 corresponding to the inner gasket member 32a and the outer gasket member 32b of the double line gasket 32.
- the inner gasket member 32a is formed in an annular shape so as to surround the passage holes 21 and 22.
- the outer gasket member 32 b is formed in a deformed trapezoidal shape, and a boundary portion with the second flow path 2 is shared with the flow path forming gasket 31.
- the double line gasket 32 in which the flow path forming gasket 31 and the communication path forming gasket 32 are formed separately from each other includes an annular inner gasket member 32a surrounding the passage holes 21 and 22, respectively.
- the annular outer gasket member 32b surrounding the inner gasket member 32a is concentrically arranged in parallel. Therefore, the outer gasket member 32 b does not have a portion shared with the flow path forming gasket 31.
- the communication path 3 through which the high-temperature fluid H flows is provided by the double line gasket 32 surrounding the left and upper passage holes 21 and 22.
- the communication passage 3 through which the low-temperature fluid C flows is formed in the upper and lower passage holes 23, 24 by the communication passage forming gasket 132 of a general gasket (hereinafter referred to as “single line gasket”) 130 used conventionally.
- the double line gasket 32 may be provided by surrounding the upper and lower passage holes 23, 24.
- the communication path forming gasket 132 of the single line gasket 130 blocks the right and left upper and lower passage holes 23 and 24, and the flow path forming gasket 131 surrounds the left and upper left and right passage holes 21 and 22 and the heat transfer section.
- the flow path forming gasket 131 provided with the first flow path 1 may also be configured such that the inner gasket member and the outer gasket member are doubled in parallel. By doing so, the gasket provided with the first flow path 1 can be prevented from being oxidized and deteriorated.
- the flow path forming gasket 131 provided with the second flow path 2 may also be configured such that the inner gasket member and the outer gasket member are doubled in parallel. By doing so, the first flow path 1 and the second flow path 2 can be assembled without being distinguished.
- gasket 30 and the single line gasket 130 are alternately interposed between the adjacent heat transfer plates 20 and 20, whereby the high temperature fluid H flows through the first flow path 1 from the passage hole 21 on the left side.
- the low temperature fluid C is discharged from the lower left passage hole 22, while the low temperature fluid C flows through the second flow path 2 from the lower right passage hole 24 and is discharged from the upper right passage hole 23. Heat is exchanged between H and the low-temperature fluid C.
- the high-temperature fluid H flows into the first flow path 1 by flowing through the communication path 3 on the left side.
- the high-temperature fluid H in the communication path 3 touches the inner gasket member 32a of the double line gasket 32.
- the high-temperature fluid H does not touch the atmosphere. The oxidation degradation reaction is difficult.
- the high temperature fluid H flowing through the lower left communication passage 3 is heat-exchanged with the low temperature fluid C and is cooled, so the gasket 32 forming the lower left flow passage 3 is not double but single. It may be. Even if the communication passage 3 for communicating the upper and lower passage holes 23, 24 is provided by the communication passage forming gasket 132 of the single line gasket 130, the low temperature fluid C flows in the communication passage 3, The communication path forming gasket 132 does not become so hot that it is oxidized and deteriorated.
- the double line gasket 32 does not crack, and the high temperature fluid H does not leak from the communication path 3.
- a portion of the heat transfer plate 20 sandwiched between the inner gasket member 32a and the outer gasket member 32b of the double line gasket 32 is provided with both or both of the drainage holes 25 and the air supply holes 26. It is characterized by that.
- the drainage hole 25 is provided with an annular gasket 33 between the heat transfer plates 20 and 20 provided with the first flow path 1.
- the drainage hole 25 is made continuous by the gasket 33.
- the nozzle 13 continuing to the drainage hole 25 is attached to the fixed frame 11, and when the high temperature fluid H leaks from the nozzle 13 as shown in FIG. 6, the inner gasket member It can be detected that 32a is leaking due to cracks or the like.
- 5 and 6 are double D gaskets in which the double line gasket 32 shown in FIG. 2 is interposed between the heat transfer plates 20 and between the fixed frame 11 and the D plate 20d.
- the plate type heat exchanger of the second embodiment can be implemented even with the double line gasket 32 shown in FIG.
- the air supply holes 26 are formed so that the inner gasket member 32a is more resistant to oxidative degradation. That is, an inert gas such as nitrogen is supplied from the air supply hole 26 into a sealed space surrounded by the inner gasket member 32a and the outer gasket member 32b of the double line gasket 32 and the two heat transfer plates 20, and the inner gasket member. Prevent 32a from contacting oxygen at all.
- FIG. 4 By interposing the annular gasket 33, the inert gas is supplied into the sealed space from the nozzle 14 that is connected to the gasket 33 and attached to the frame 11. As shown in FIG. 4, a nozzle 14 for supplying this inert gas is attached to the fixed frame 11.
- the drainage hole 25 and the air supply hole 26 may be provided only in the upper left communication passage 3 through which the high temperature fluid H flows at a high temperature, but the double lower side in which the lower left communication passage 3 through which the cooled high temperature fluid H flows is provided.
- the drain gasket 25 and the air supply hole 26 in the line gasket 32, it can be assembled upside down. Accordingly, in this case, when the liquid discharge hole 25 and the air supply hole 26 are turned upside down, the liquid discharge hole 25 becomes the air supply hole 26 and the air supply hole 26 becomes the liquid discharge hole 25.
- the third embodiment is characterized in that a double line gasket 32 is interposed between a cassette plate 200 and a plurality of cassette plates 200 stacked in a vertical posture.
- the cassette plate 200 is obtained by permanently connecting the outer peripheral portions of the two heat transfer plates 20 and 20 by laser welding or brazing (indicated by black circles in FIG. 7).
- a second flow path 2 through which the flow path 1 or the low temperature fluid C flows is provided.
- a plurality of cassette plates 200 are stacked, and a second flow path 2 for circulating the low temperature fluid C or a first flow path 1 for circulating the high temperature fluid H is provided between the cassette plates 200 and 200.
- a gasket 30 is interposed on the outer peripheral portion of the stacked cassette plate 200 and cassette plate 200.
- the gasket 30 is a combination of a flow path forming gasket (not shown) interposed at the permanently connected outer peripheral portion of the cassette plate 200 and a double line gasket 32 provided with the communication path 3.
- a flow path forming gasket (not shown) interposed at the permanently connected outer peripheral portion of the cassette plate 200 and a double line gasket 32 provided with the communication path 3.
- an annular inner gasket member 32a surrounding the passage holes 21 and 22 and an outer gasket member 32b surrounding the inner gasket member 32a are concentrically arranged in parallel.
- the outer gasket member 31b is interposed inside the permanent connection as shown in the figure.
- the outer gasket member 32b is interposed between the permanently connected portions 201, and the inner gasket member 31a is interposed between the permanently connected inner sides (lines interposed in the outer gasket member 31b in FIG. 7). Be dressed.
- the communication passage 3 is formed by a double line gasket 32 surrounding the passage holes 21 and 22.
- the inner gasket member 32a of the double line gasket 32 is in contact with the high-temperature fluid H, but the reaction with oxygen in the atmosphere is suppressed and oxidative degradation is suppressed.
- the double line gasket 32 is prevented from cracking and settling due to aging, and the high temperature fluid H does not leak early.
- the high temperature fluid H does not leak. can do.
- a plurality of heat transfer plates 20 in which a plurality of passage holes 21, 22, 23, and 24 are formed are stacked, and between the outer peripheral portions of the adjacent heat transfer plates 20.
- the gasket 31 for channel formation By interposing the gasket 31 for channel formation, the first channel 1 for circulating the high-temperature fluid H and the second fluid 2 for circulating the low-temperature fluid C are alternately formed with the heat transfer plate 20 as a boundary.
- the communication passage forming gaskets 32 and 32 surrounding the passage holes 21, 22, 23 and 24 are interposed between the adjacent heat transfer plates 20, thereby allowing the fluids H and C to flow through the first flow path 1.
- the communication path 3 that flows into and out of the second flow path 2 and the communication path 3 that flows into and out of the second flow path 2 are formed, and the communication path forming gasket 32 is an inner gasket member 32a that surrounds the passage holes 21, 22, 23, and 24. And the outer side surrounding the inner gasket 32a And a gasket member 32b are doubly. For this reason, the communication passage forming gasket 32 is formed by double the inner gasket member 32a and the outer gasket member 32b so as to surround the passage holes 21, 22, 23, 24, thereby forming the communication passage 3.
- the communication path forming gasket 32 is doubly arranged in parallel only between the heat transfer plates 20 forming the communication path 3 through which the high-temperature fluid H flows. ing. Accordingly, in view of the fact that the gasket deterioration for the communication passage forming gasket 32 that forms the communication passage 3 through which the high-temperature fluid H circulates easily proceeds due to the oxidation deterioration reaction, only the gasket 32 for communication passage formation is doubled.
- the communication path forming gasket 32 that forms a flow path through which the fluid C flows is made a single layer.
- the plate heat exchanger includes a plurality of cassette plates 200 in which the outer peripheral portions of the two heat transfer plates 20, 20 having a plurality of passage holes 21, 22, 23, 24 are permanently connected.
- the flow path forming gaskets 31 are interposed between the outer peripheral portions of the adjacent cassette plates 200 and 200 which are stacked, and the communication path forming gaskets 32 surrounding the passage holes 21, 22, 23 and 24 are adjacent to each other.
- the communication path forming gasket 32 is formed and has an inner gasket member 32a surrounding the passage hole and an outer gasket member 32b surrounding the inner gasket 32a. It is heavy. For this reason, the communication path forming gasket 32 interposed between the cassette plate 200 and the cassette plate 200 is doubled by the inner gasket member 32a and the outer gasket member 32b. In the case where the first flow path 1 through which H flows is provided, the communication path forming gasket 32 is less likely to undergo oxidative deterioration reaction, suppresses the progress of gasket deterioration, and prevents the high temperature fluid H from leaking from the communication path 3. Can do.
- the drainage holes 25 are formed in the heat transfer plate 20 between the inner gasket member 32a and the outer gasket member 32b of the communication path forming gasket 32. Has been. Therefore, the drainage holes 25 are formed in the heat transfer plate 20 between the inner gasket member 32a and the outer gasket member 32b, so that the inner gasket is removed from the inner gasket member 32a due to the settling due to thermal deterioration and aging deterioration. The leaked high temperature fluid H can be discharged from the drain hole 25 in the outer gasket member 32b.
- the air supply holes 26 are formed in the heat transfer plate 20 between the inner gasket member 32a and the outer gasket member 32b between the communication path forming gaskets 32.
- the sealed space surrounded by the inner and outer gasket members and the heat transfer plate 20 is filled with an inert gas.
- the inert gas is filled in the sealed space surrounded by the inner gasket member 32a, the outer gasket member 32b, and the heat transfer plate 20, thereby eliminating the air present in the sealed space.
- the oxidation deterioration reaction of the inner gasket member 32a can be suppressed as much as possible.
- the plate type heat exchanger for stacking the cassette plates 200 described in the third embodiment also includes the exhaust holes and the air supply holes 26 described in the second embodiment, and in the first embodiment.
- the communication path forming gasket 32 may be doubled only on the upstream side of the first flow path 1.
- the nozzle 13 continuing to the drainage hole 25 and the nozzle 14 continuing to the air supply hole 26 may be provided in the moving frame 12 instead of the fixed frame 11.
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- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
2………第2流路
3………連通路
20……伝熱プレート
21,22,23,24…通路孔
25……排液孔
26……給気孔
30……ガスケット
31……流路形成用ガスケット
32……連通路形成用ガスケット(ダブルラインガスケット)
32a…内側ガスケット部材
32b…外側ガスケット部材
200…カセットプレート
C………低温流体
H………高温流体 DESCRIPTION OF
32a ...
Claims (5)
- 複数の通路孔を形成した伝熱プレートが複数枚積層され、
隣り合う各伝熱プレートの外周部間に流路形成用ガスケットが介装されることで、伝熱プレートを境にして高温流体を流通させる第1流路と、低温流体を流通させる第2流体とが交互に形成され、
前記通路孔を囲む連通路形成用ガスケットが隣り合っている伝熱プレート間に介装されることで、流体を第1流路に流入出させる連通路と第2流路に流入出させる連通路とが形成され、
前記連通路形成用ガスケットは、前記通路孔を囲む内側ガスケット部材と該内側ガスケットを囲む外側ガスケット部材とを有して二重にされている
プレート式熱交換器。 A plurality of heat transfer plates having a plurality of passage holes are laminated,
A flow path forming gasket is interposed between the outer peripheral portions of adjacent heat transfer plates, so that a first flow path for circulating a high-temperature fluid across the heat transfer plate and a second fluid for circulating a low-temperature fluid And are formed alternately,
A communication passage for allowing fluid to flow into and out of the first flow path and a communication path for flowing into and out of the second flow path by interposing between the adjacent heat transfer plates with the communication path forming gasket surrounding the passage hole. And formed,
The plate-type heat exchanger, wherein the communication path forming gasket is doubled by having an inner gasket member surrounding the passage hole and an outer gasket member surrounding the inner gasket. - 前記連通路形成用ガスケットは、前記高温流体が流通する連通路を形成する伝熱プレート間にのみ二重に並列されている請求項1に記載のプレート式熱交換器。 The plate-type heat exchanger according to claim 1, wherein the communication path forming gasket is doubly arranged in parallel only between heat transfer plates forming a communication path through which the high-temperature fluid flows.
- 複数の通路孔を形成した2枚の伝熱プレートの外周部を永久接続したカセットプレートが複数枚積層され、
隣り合う各カセットプレートの外周部間に流路形成用ガスケットが介装され、
前記通路孔を囲む連通路形成用ガスケットが隣り合っている伝熱プレート間に介装されることで、
カセットプレート内とカセットプレート間とに高温流体を流通させる第1流路又は低温流体を流通させる第2流路が交互に形成され、
前記連通路形成用ガスケットは、前記通路孔を囲む内側ガスケット部材と該内側ガスケットを囲む外側ガスケット部材とを有して二重にされている
プレート式熱交換器。 A plurality of cassette plates in which the outer peripheral portions of two heat transfer plates having a plurality of passage holes are permanently connected are laminated,
A gasket for forming a flow path is interposed between the outer peripheral portions of the adjacent cassette plates,
By interposing the gasket for communication passage formation surrounding the passage hole between adjacent heat transfer plates,
A first flow path for flowing a high-temperature fluid or a second flow path for flowing a low-temperature fluid are alternately formed in the cassette plate and between the cassette plates,
The plate-type heat exchanger, wherein the communication path forming gasket is doubled by having an inner gasket member surrounding the passage hole and an outer gasket member surrounding the inner gasket. - 前記連通路形成用ガスケットの内側ガスケット部材と外側ガスケット部材との間の伝熱プレートには、排液孔が形成されている請求項1ないし3のいずれか一項に記載のプレート式熱交換器。 The plate-type heat exchanger according to any one of claims 1 to 3, wherein a drainage hole is formed in a heat transfer plate between the inner gasket member and the outer gasket member of the communication path forming gasket. .
- 前記連通路形成用ガスケット間の内側ガスケット部材と外側ガスケット部材との間の伝熱プレートには、給気孔が形成され、内外ガスケット部材と伝熱プレートとによって囲まれた密閉空間内に不活性ガスが充填されている請求項1ないし4のいずれか一項に記載のプレート式熱交換器。 An air supply hole is formed in a heat transfer plate between the inner gasket member and the outer gasket member between the communication path forming gaskets, and an inert gas is enclosed in a sealed space surrounded by the inner and outer gasket members and the heat transfer plate. The plate heat exchanger according to any one of claims 1 to 4, wherein
Priority Applications (4)
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JP2013540787A JP6097696B2 (en) | 2011-10-24 | 2012-10-23 | Plate heat exchanger |
US14/354,120 US20140338870A1 (en) | 2011-10-24 | 2012-10-23 | Plate heat exchanger |
CN201280048896.XA CN103946663B (en) | 2011-10-24 | 2012-10-23 | Heat-exchangers of the plate type |
EP12843569.0A EP2772718B1 (en) | 2011-10-24 | 2012-10-23 | Plate heat exchanger |
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JP2011233098 | 2011-10-24 | ||
JP2011-233098 | 2011-10-24 |
Publications (1)
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WO2013061966A1 true WO2013061966A1 (en) | 2013-05-02 |
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PCT/JP2012/077362 WO2013061966A1 (en) | 2011-10-24 | 2012-10-23 | Plate heat exchanger |
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US (1) | US20140338870A1 (en) |
EP (1) | EP2772718B1 (en) |
JP (1) | JP6097696B2 (en) |
CN (1) | CN103946663B (en) |
WO (1) | WO2013061966A1 (en) |
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CN104101237A (en) * | 2014-06-25 | 2014-10-15 | 无锡溥汇机械科技有限公司 | Plate heat exchanger |
CN104121791A (en) * | 2014-07-18 | 2014-10-29 | 无锡溥汇机械科技有限公司 | Plate heat exchanger |
US9772146B2 (en) | 2011-11-11 | 2017-09-26 | Hisaka Works, Ltd. | Plate heat exchanger |
CN114636331A (en) * | 2020-12-16 | 2022-06-17 | 丹佛斯有限公司 | Gasket unit insert for heat exchanger |
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DE102013222130A1 (en) * | 2013-10-30 | 2015-04-30 | MAHLE Behr GmbH & Co. KG | Heat exchanger |
CN104359337A (en) * | 2014-12-04 | 2015-02-18 | 胡甜甜 | Multi-medium plate heat exchanger |
US20170089644A1 (en) * | 2015-09-30 | 2017-03-30 | Spx Flow, Inc. | Port Connection for a Heat Exchanger |
CN107478078A (en) * | 2017-08-17 | 2017-12-15 | 佛山禅能换热器有限公司 | Mix application method and plate type heat exchanger of the sealing gasket in plate type heat exchanger |
US10458718B2 (en) * | 2017-11-29 | 2019-10-29 | Asia Vital Components Co., Ltd. | Airtight penetration structure for heat dissipation device |
DE102022112039A1 (en) | 2022-05-13 | 2023-11-16 | Akg Verwaltungsgesellschaft Mbh | Safety heat exchanger |
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Also Published As
Publication number | Publication date |
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EP2772718A1 (en) | 2014-09-03 |
US20140338870A1 (en) | 2014-11-20 |
JP6097696B2 (en) | 2017-03-15 |
JPWO2013061966A1 (en) | 2015-04-02 |
CN103946663A (en) | 2014-07-23 |
EP2772718A4 (en) | 2015-07-29 |
CN103946663B (en) | 2016-06-29 |
EP2772718B1 (en) | 2019-05-15 |
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