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JP2012122688A - Heat transfer plate for plate type heat exchanger, and plate type heat exchanger - Google Patents

Heat transfer plate for plate type heat exchanger, and plate type heat exchanger Download PDF

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JP2012122688A
JP2012122688A JP2010274652A JP2010274652A JP2012122688A JP 2012122688 A JP2012122688 A JP 2012122688A JP 2010274652 A JP2010274652 A JP 2010274652A JP 2010274652 A JP2010274652 A JP 2010274652A JP 2012122688 A JP2012122688 A JP 2012122688A
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heat transfer
plate
width direction
ridges
longitudinal direction
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Norio Yamauchi
教生 山内
Kenji Kusunoki
健司 楠
Minoru Matsushita
稔 松下
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Hisaka Works Ltd
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Hisaka Works Ltd
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Abstract

【課題】組み立てや分解を行うときのハンドリング性を向上させることのできるプレート式熱交換器用の伝熱プレートを提供することを課題とする。
【解決手段】プレス成形によって略長方形状の金属プレートの両面に複数の凹条及び凸条が長手方向と直交する幅方向に延びる仮想線に対して傾斜するように形成されるとともに前記凹条及び凸条を含む領域に流路を形成すべくガスケットが配置される環状のガスケット装着溝が形成され、該ガスケット装着溝が金属プレートの長手方向と直交する幅方向の両端縁に沿った一対のストレート部を有するプレート式熱交換器用の伝熱プレートにおいて、幅方向内側で各ストレート部に沿った所定範囲にある凹条及び凸条は、幅方向内側にある前記所定範囲の境界を基準とする幅方向内側の対称位置にある凹条及び凸条に対して逆向きに傾斜していることを特徴とする。
【選択図】図１An object of the present invention is to provide a heat transfer plate for a plate heat exchanger that can improve handling when assembling and disassembling.
A plurality of ridges and ridges are formed on both surfaces of a substantially rectangular metal plate by press molding so as to be inclined with respect to a virtual line extending in a width direction perpendicular to the longitudinal direction, and the ridges and An annular gasket mounting groove in which a gasket is disposed to form a flow path is formed in a region including the ridges, and the gasket mounting groove is a pair of straight lines along both edges in the width direction perpendicular to the longitudinal direction of the metal plate. In the heat transfer plate for a plate heat exchanger having a portion, the concave stripes and the convex stripes in a predetermined range along each straight portion on the inner side in the width direction have a width based on the boundary of the predetermined range on the inner side in the width direction. It is characterized by inclining in a reverse direction with respect to the ridges and ridges at symmetrical positions inside the direction.
[Selection] Figure 1

Description

本発明は、熱交換媒体と被熱交換媒体とを熱交換させるプレート式熱交換器用の伝熱プレート及びプレート式熱交換器に関する。   The present invention relates to a heat transfer plate for a plate heat exchanger and a plate heat exchanger for exchanging heat between a heat exchange medium and a heat exchange medium.

従来から、熱交換媒体と被熱交換媒体とを熱交換させる熱交換器として、複数枚の伝熱プレートが積層され、隣り合う伝熱プレート間にガスケットを介装されることで、各伝熱プレートを境にして熱交換媒体を流通させる第一流路と被熱交換媒体を流通させる第二流路とが交互に形成されたガスケットタイプのプレート式熱交換器が提供されている。   Conventionally, as a heat exchanger for exchanging heat between a heat exchange medium and a heat exchange medium, a plurality of heat transfer plates are laminated, and a gasket is interposed between adjacent heat transfer plates, so that each heat transfer plate There is provided a gasket type plate heat exchanger in which a first flow path for circulating a heat exchange medium and a second flow path for circulating a heat exchange medium are alternately formed with a plate as a boundary.

前記伝熱プレートは、略長方形状の金属プレートをプレス成形したもので、金属プレートの両面に複数の凹条及び凸条が長手方向と直交する幅方向に延びる仮想線に対して傾斜するように形成されるとともに、前記凹条及び凸条を含む領域に熱交換媒体又は被熱交換媒体を流通させる流路を形成すべくガスケットが配置される環状のガスケット装着溝が形成されている。また、該伝熱プレートは、長手方向の一端側及び他端側に流路形成用の開口が二つずつ形成されている。   The heat transfer plate is formed by press-molding a substantially rectangular metal plate so that a plurality of concave stripes and convex stripes on both sides of the metal plate are inclined with respect to an imaginary line extending in the width direction perpendicular to the longitudinal direction. In addition to being formed, an annular gasket mounting groove is formed in which a gasket is disposed so as to form a flow path through which the heat exchange medium or the heat exchange medium flows in a region including the concave stripes and the convex stripes. In addition, the heat transfer plate has two openings for forming a flow path on one end side and the other end side in the longitudinal direction.

前記ガスケット装着溝は、前記金属プレートの長手方向と直交する方向の両端縁に沿った一対のストレート部を有しており、金属プレートの面上で長手方向の一端側及び他端側の開口を一つずつ含む所定領域を包囲するように形成されている。これにより、前記伝熱プレートは、一対のストレート部間が長手方向の延びる伝熱部（熱交換を行うための領域）になるように構成されている。   The gasket mounting groove has a pair of straight portions along both end edges in a direction orthogonal to the longitudinal direction of the metal plate, and has openings on one end side and the other end side in the longitudinal direction on the surface of the metal plate. It is formed so as to surround a predetermined region including one by one. Thereby, the said heat-transfer plate is comprised so that between a pair of straight parts may become the heat-transfer part (area | region for heat exchange) extended in a longitudinal direction.

そして、この種のプレート式熱交換器は、積層された複数枚の伝熱プレートを締付手段で積層方向に締め付けることで、ガスケット装着溝に装着されて伝熱プレート間にあるガスケットが両側の伝熱プレートに密接するとともに隣り合う伝熱プレートの凸条同士が交差衝合し、前記第一流路及び前記第二流路がそれぞれ液密な状態で形成されるようになっている。また、該プレート式熱交換器は、各伝熱プレートの一端側及び他端側の開口が積層方向に連なって第一流路に熱交換媒体を流出入させる一対の流路が第二流路に対して遮断された状態で形成されるとともに、第二流路に被熱交換媒体を流出入させる一対の流路が第一流路に対して遮断された状態で形成されるようになっている。   In this type of plate heat exchanger, a plurality of stacked heat transfer plates are tightened in the stacking direction by tightening means, so that the gasket mounted between the heat transfer plates is mounted on the gasket mounting groove. The protrusions of the adjacent heat transfer plates are in close contact with the heat transfer plate and intersect each other, so that the first flow path and the second flow path are formed in a liquid-tight state, respectively. Further, the plate type heat exchanger has a pair of flow paths in which the openings on one end side and the other end side of each heat transfer plate are connected in the stacking direction and the heat exchange medium flows into and out of the first flow path in the second flow path. A pair of flow paths that allow the heat exchange medium to flow into and out of the second flow path are formed in a state of being blocked from the first flow path.

そして、この種のプレート式熱交換器は、伝熱プレートに対する締め付けを解除することで、伝熱プレート及びガスケットを分解することができ、ガスケットの交換や伝熱プレートの伝熱部（第一流路及び第二流路を画定する領域）の清掃等を行えるようになっている。   And this kind of plate type heat exchanger can disassemble the heat transfer plate and the gasket by releasing the tightening to the heat transfer plate, and can replace the gasket and the heat transfer part of the heat transfer plate (first flow path). And an area that defines the second flow path) can be cleaned.

特開２０１０−１２７５９９号公報JP 2010-127599 A

ところで、上記構成のプレート式熱交換器は、比較的大型であり、組み立てや分解をする場合に、作業者は、重量物である伝熱プレートをバランスよく確実に持てる姿勢、すなわち、長手方向を上下方向にした姿勢で長手方向の中間部に位置する幅方向の両端部を持って作業を行うが、伝熱プレートが重量物である上に該伝熱プレートの上下方向の長さが長いことから、作業者が伝熱プレートを持ったときに把持位置を支点にして伝熱プレートが湾曲してしまい、組み立て時や分解時のハンドリング性が悪いといった問題がある。   By the way, the plate-type heat exchanger having the above configuration is relatively large, and when assembling and disassembling, the operator can hold the heat transfer plate, which is a heavy object, in a balanced manner, that is, in the longitudinal direction. Work with both ends in the width direction located in the middle in the longitudinal direction in a vertical orientation, but the heat transfer plate is heavy and the heat transfer plate is long in the vertical direction Therefore, when the worker holds the heat transfer plate, the heat transfer plate is bent with the gripping position as a fulcrum, and there is a problem that handling property at the time of assembly or disassembly is poor.

特に、伝熱性能を高めるべく伝熱プレートが薄板で構成されると、剛性が低くなるため、作業者が伝熱プレートを持ったときの湾曲が顕著になり、非常に扱い難いといった問題がある。   In particular, if the heat transfer plate is made of a thin plate in order to improve the heat transfer performance, the rigidity becomes low, so that there is a problem that the bending when the operator holds the heat transfer plate becomes remarkable and it is very difficult to handle. .

そこで、本発明は、斯かる実情に鑑み、組み立てや分解を行うときのハンドリング性を向上させることのできるプレート式熱交換器用の伝熱プレート、及びプレート式熱交換器を提供することを課題とする。   Then, in view of such a situation, the present invention has an object to provide a heat transfer plate for a plate heat exchanger and a plate heat exchanger that can improve handling when assembling and disassembling. To do.

本発明に係るプレート式熱交換器用の伝熱プレートは、プレス成形によって略長方形状の金属プレートの両面に複数の凹条及び凸条が長手方向と直交する幅方向に延びる仮想線に対して傾斜するように形成されるとともに前記凹条及び凸条を含む領域に流路を形成すべくガスケットが配置される環状のガスケット装着溝が形成され、該ガスケット装着溝が金属プレートの長手方向と直交する幅方向の両端縁に沿った一対のストレート部を有するプレート式熱交換器用の伝熱プレートにおいて、幅方向内側で各ストレート部に沿った所定範囲にある凹条及び凸条は、幅方向内側にある前記所定範囲の境界を基準とする幅方向内側の対称位置にある凹条及び凸条に対して逆向きに傾斜していることを特徴とする。   The heat transfer plate for a plate heat exchanger according to the present invention is inclined with respect to an imaginary line in which a plurality of ridges and ridges extend in the width direction perpendicular to the longitudinal direction on both surfaces of a substantially rectangular metal plate by press molding. An annular gasket mounting groove is formed in which a gasket is disposed to form a flow path in a region including the concave stripe and the convex stripe, and the gasket mounting groove is orthogonal to the longitudinal direction of the metal plate. In the heat transfer plate for a plate-type heat exchanger having a pair of straight portions along both edges in the width direction, the recesses and ridges in a predetermined range along each straight portion on the inner side in the width direction are on the inner side in the width direction. It is inclined in the opposite direction with respect to the ridges and ridges at symmetrical positions on the inner side in the width direction with respect to a boundary of the predetermined range.

上記構成のプレート式熱交換器用の伝熱プレートによれば、作業者が把持することになる幅方向の両端部の長手方向の剛性が高くなり、作業者が長手方向と直交する両端部を把持したときの撓みが抑制される。より具体的には、ガスケット装着溝の一部であるストレート部は、金属プレートの幅方向の両端縁近傍に配置されるため、幅方向内側で各ストレート部に沿った所定範囲は作業者の把持位置を含むことになる。そして、所定範囲内の凹条及び凸条が前記所定範囲の境界を基準とする幅方向内側の対称位置にある凹条及び凸条に対して逆向きに傾斜することで、当該所定範囲内の凹条及び凸条は、所定範囲外にある凹条及び凸条に対して交差する方向に延びるため、所定範囲外にある凹条及び凸条の形成される領域の曲げ作用に対して対抗することになる。従って、幅方向の両側にあるストレート部近傍において長手方向の曲げ剛性が高くなるため、作業者が幅方向の両端部を把持したときの長手方向の湾曲が抑制される。   According to the heat transfer plate for the plate heat exchanger having the above-described configuration, the rigidity in the longitudinal direction at both ends in the width direction that the operator grips increases, and the operator grips both ends that are orthogonal to the longitudinal direction. The bending at the time of doing is suppressed. More specifically, since the straight portion that is a part of the gasket mounting groove is disposed in the vicinity of both edges in the width direction of the metal plate, a predetermined range along each straight portion on the inner side in the width direction is gripped by the operator. Will include the location. And the concave stripes and ridges within the predetermined range are inclined in the opposite direction with respect to the concave stripes and ridges at the symmetrical inner position in the width direction with respect to the boundary of the predetermined range. Since the ridges and ridges extend in a direction intersecting the ridges and ridges outside the predetermined range, the ridges and ridges counteract the bending action of the regions where the grooves and ridges outside the predetermined range are formed. It will be. Therefore, since the bending rigidity in the longitudinal direction is increased in the vicinity of the straight portions on both sides in the width direction, the bending in the longitudinal direction when the operator grips both end portions in the width direction is suppressed.

本発明の一態様として、前記所定範囲の凹条及び凸条は、前記幅方向に延びる仮想線に対して４５°又は略４５°で傾斜していることが好ましい。このようにすれば、伝熱プレート（金属プレート）の所定範囲における長手方向及び幅方向の断面係数が等しく又は略等しくなり、当該所定範囲の剛性が高くなる。また、プレート式熱交換器は、複数枚の伝熱プレートを積層して流路を形成するに当り、隣り合う伝熱プレートの凸条同士を交差衝合させるようにするため、上述の如く、上記構成の伝熱プレートを積層したときに所定範囲内の凸条同士が直交して衝合（接触）する。これにより、ガスケット装着溝に隣接する前記所定領域内で長手方向及び幅方向における凸条同士の接触点の間隔が狭くなる結果、ガスケット近傍の剛性が高まり、ガスケットが伝熱プレートに確実に挟まれた状態（高いシール性能を発揮した状態）になる。   As one aspect of the present invention, it is preferable that the predetermined range of concave stripes and convex stripes is inclined at 45 ° or substantially 45 ° with respect to an imaginary line extending in the width direction. If it does in this way, the section modulus of the longitudinal direction and the width direction in the predetermined range of a heat transfer plate (metal plate) will become equal or substantially equal, and the rigidity of the predetermined range will become high. In addition, the plate heat exchanger is formed by laminating a plurality of heat transfer plates to form a flow path, so that the protrusions of adjacent heat transfer plates cross each other, as described above, When the heat transfer plates having the above configuration are stacked, the protrusions within a predetermined range are abutted (contacted) orthogonally. As a result, the distance between the contact points of the protrusions in the longitudinal direction and the width direction in the predetermined region adjacent to the gasket mounting groove is narrowed. As a result, the rigidity in the vicinity of the gasket is increased and the gasket is securely sandwiched between the heat transfer plates. It will be in the state (the state which exhibited high sealing performance).

本発明の他態様として、前記所定範囲の境界は、ストレート部の中心線から幅方向に前記金属プレートの幅方向の全寸法の５％乃至１０％の距離をおいた位置に設定されていることが好ましい。このようにすれば、長手方向の曲げ剛性を高める領域を最小限に抑えて熱交換媒体又は被熱交換媒体を流通させる領域を確保することができる。   As another aspect of the present invention, the boundary of the predetermined range is set to a position at a distance of 5% to 10% of the total dimension in the width direction of the metal plate in the width direction from the center line of the straight portion. Is preferred. By doing so, it is possible to secure a region for circulating the heat exchange medium or the heat exchange medium while minimizing the region for increasing the bending rigidity in the longitudinal direction.

本発明の別の他態様として、前記所定範囲の境界上に、長手方向に延びる補強溝が長手方向に断続的に形成されていることが好ましい。このようにすれば、補強溝を画定する一対の壁部が長手方向に形成されるため、長手方向の曲げ剛性をさらに高めることができ、作業者が幅方向の両端部を把持したときの湾曲をより確実に抑制することができる。また、補強溝であれば熱交換媒体又は被熱交換媒体の流れを阻害することもない。   As another aspect of the present invention, it is preferable that reinforcing grooves extending in the longitudinal direction are intermittently formed in the longitudinal direction on the boundary of the predetermined range. In this way, since the pair of wall portions that define the reinforcing groove are formed in the longitudinal direction, the bending rigidity in the longitudinal direction can be further increased, and the bending when the operator grips both end portions in the width direction. Can be more reliably suppressed. Moreover, if it is a reinforcement groove | channel, the flow of a heat exchange medium or a heat exchange medium will not be inhibited.

本発明のプレート式熱交換器は、長方形状に形成されて長手方向の一端側及び他端側に流路形成用開口が少なくとも二つ形成されるとともに両面に複数の凹条及び凸条が長手方向と直交する幅方向に延びる仮想線に対して傾斜するように形成され、且つ前記凹条及び凸条を含む領域に流路を形成すべくガスケットが配置される環状のガスケット装着溝が長手方向と直交する方向の両端縁に沿った一対のストレート部を有して形成された複数の伝熱プレートが積層され、隣り合う伝熱プレートがガスケット装着溝に配置されたガスケットを挟み込むことで、隣り合う伝熱プレートの凸条同士が交差衝合した状態で、各伝熱プレートを境にして熱交換媒体を流通させる第一流路と被熱交換媒体を流通させる第二流路とが交互に形成されたプレート式熱交換器において、前記伝熱プレートが上記何れかのプレート式熱交換器用の伝熱プレートで構成されていることを特徴とする。   The plate heat exchanger of the present invention is formed in a rectangular shape, and at least two flow path forming openings are formed on one end side and the other end side in the longitudinal direction, and a plurality of concave and convex strips are elongated on both sides. An annular gasket mounting groove that is formed so as to be inclined with respect to an imaginary line extending in the width direction orthogonal to the direction and in which a gasket is disposed to form a flow path in the region including the concave stripe and the convex stripe is in the longitudinal direction A plurality of heat transfer plates formed with a pair of straight portions along both end edges in a direction perpendicular to the two are stacked, and adjacent heat transfer plates sandwich adjacent gaskets disposed in gasket mounting grooves, thereby adjacent to each other. The first flow path for circulating the heat exchange medium and the second flow path for circulating the heat exchange medium are alternately formed across the heat transfer plates in a state in which the protruding strips of the matching heat transfer plates cross each other. Plate In the heat exchanger, the heat transfer plate is characterized in that it consists of heat transfer plates of the one plate heat exchanger.

上記構成のプレート式熱交換器によれば、上記何れかのプレート式熱交換器用の伝熱プレートが採用されるため、上述の作用及び効果を奏することができ、組み立てや分解がし易くなる。   According to the plate heat exchanger having the above configuration, since any one of the heat transfer plates for the plate heat exchanger is employed, the above-described operation and effect can be achieved, and assembly and disassembly are facilitated.

以上のように、本発明のプレート式熱交換器用の伝熱プレートによれば、組み立てや分解を行うときのハンドリング性を向上させることができるという優れた効果を奏し得る。   As described above, according to the heat transfer plate for a plate heat exchanger of the present invention, it is possible to achieve an excellent effect that handling properties when assembling and disassembling can be improved.

また、本発明のプレート式熱交換器によれば、上記構成のプレート式熱交換器用の伝熱プレートが採用されるため、組み立てや分解を行うときのハンドリング性を向上させることができるという優れた効果を奏し得る。   In addition, according to the plate heat exchanger of the present invention, since the heat transfer plate for the plate heat exchanger having the above-described configuration is adopted, it is possible to improve the handling property when assembling and disassembling. Can have an effect.

本発明の一実施形態に係るプレート式熱交換器の全体斜視図を示す。The whole perspective view of the plate type heat exchanger concerning one embodiment of the present invention is shown. 同実施形態に係るプレート式熱交換器の締付手段及びレールを省略した概略分解斜視図を示す。The general | schematic disassembled perspective view which abbreviate | omitted the fastening means and rail of the plate type heat exchanger which concern on the embodiment is shown. 同実施形態に係るプレート式熱交換器に採用される伝熱プレートの要部拡大図を含む平面図を示す。The top view containing the principal part enlarged view of the heat exchanger plate employ | adopted as the plate type heat exchanger which concerns on the embodiment is shown. 同実施形態に係るプレート式熱交換器における熱交換媒体及び被熱交換媒体の流動を説明するための説明図であって、（ａ）は、第一流路における熱交換媒体の流れを示し、（ｂ）は、第二流路における被熱交換媒体の流れを示す。It is explanatory drawing for demonstrating the flow of the heat exchange medium in the plate type heat exchanger which concerns on the same embodiment, and a to-be-heat exchange medium, (a) shows the flow of the heat exchange medium in a 1st flow path, b) shows the flow of the heat exchange medium in the second flow path. 本発明の他実施形態に係るプレート式熱交換器に採用される伝熱プレートの要部拡大図を含む平面図を示す。The top view containing the principal part enlarged view of the heat exchanger plate employ | adopted as the plate-type heat exchanger which concerns on other embodiment of this invention is shown. 本発明の別の実施形態に係るプレート式熱交換器に採用される伝熱プレートの要部拡大図を含む平面図を示す。The top view containing the principal part enlarged view of the heat exchanger plate employ | adopted as the plate-type heat exchanger which concerns on another embodiment of this invention is shown.

以下、本発明の一実施形態に係るプレート式熱交換器、及び該プレート式熱交換器用の伝熱プレートについて、添付図面を参照しつつ説明する。   Hereinafter, a plate heat exchanger according to an embodiment of the present invention and a heat transfer plate for the plate heat exchanger will be described with reference to the accompanying drawings.

本実施形態に係るプレート式熱交換器は、図１に示す如く、それぞれ独立した複数枚の伝熱プレート１０…が積層されている。そして、該プレート式熱交換器１は、図２に示す如く、各伝熱プレート１０を境にして熱交換媒体Ａを流通させる第一流路Ｒ１と被熱交換媒体Ｂを流通させる第二流路Ｒ２とが交互に形成され、各伝熱プレート１０に形成された二つの第一開口１００ａ，１００ｂが連なって熱交換媒体Ａを第一流路Ｒ１に対して流出入させる熱交換媒体流入路Ｒ３及び熱交換媒体流出路Ｒ４が形成されるとともに、各伝熱プレート１０に形成された二つの第二開口１０１ａ，１０１ｂが連なって被熱交換媒体Ｂを第二流路Ｒ２に対して流出入させる被熱交換媒体流入路Ｒ５及び被熱交換媒体流出路Ｒ６が形成されている。   In the plate heat exchanger according to the present embodiment, a plurality of independent heat transfer plates 10 are stacked as shown in FIG. As shown in FIG. 2, the plate heat exchanger 1 includes a first flow path R1 for circulating the heat exchange medium A and a second flow path for circulating the heat exchange medium B, with each heat transfer plate 10 as a boundary. R2 and R2 are alternately formed, and the two first openings 100a and 100b formed in each heat transfer plate 10 are connected to each other so that the heat exchange medium A flows into and out of the first flow path R1. A heat exchange medium outflow path R4 is formed, and the two second openings 101a and 101b formed in each heat transfer plate 10 are connected to allow the heat exchange medium B to flow into and out of the second flow path R2. A heat exchange medium inflow path R5 and a heat exchange medium outflow path R6 are formed.

より具体的に説明すると、本実施形態に係るプレート式熱交換器１は、複数枚の伝熱プレート１０…と、各伝熱プレート１０間に介装されるガスケット１１，１２，１３，１４と、複数枚の伝熱プレート１０…を挟み込む一対のフレームプレート１５，１６と、複数枚の伝熱プレート１０…を締め付けるための締付手段１７（図１参照）とを備えている。   More specifically, the plate heat exchanger 1 according to this embodiment includes a plurality of heat transfer plates 10... And gaskets 11, 12, 13, 14 interposed between the heat transfer plates 10. A pair of frame plates 15 and 16 sandwiching the plurality of heat transfer plates 10 and a fastening means 17 (see FIG. 1) for tightening the plurality of heat transfer plates 10 are provided.

各伝熱プレート１０…は、図３に示す如く、略長方形状の金属プレートをプレス成形したもので、、金属プレートの両面に複数の凹条１１０…，１１２…及び凸条１１１…，１１３…が長手方向と直交する幅方向に延びる仮想線ＳＬに対して傾斜するように形成されるとともに前記凹条１１０…，１１２…及び凸条１１１…，１１３…を含む領域に流路Ｒ１，Ｒ２（図１参照）を形成すべくガスケット１１，１２（図１参照）が配置される環状のガスケット装着溝１０２，１０３が形成され、該ガスケット装着溝１０２，１０３は、金属プレートの長手方向と直交する幅方向の両端縁に沿った一対のストレート部１０２ａ，１０３ａを有している。なお、本明細書に添付した各図において、凸条１１１…，１１３…を波線で表現し、凹条１１０…，１１２…を波線間の領域で表現している。   As shown in FIG. 3, each heat transfer plate 10 is formed by press-molding a substantially rectangular metal plate. A plurality of concave stripes 110, 112, and convex stripes 111, 113 are formed on both surfaces of the metal plate. Are formed so as to be inclined with respect to an imaginary line SL extending in the width direction orthogonal to the longitudinal direction, and flow paths R1, R2 ( An annular gasket mounting groove 102, 103 in which the gaskets 11, 12 (see FIG. 1) are arranged is formed to form the gasket mounting groove 102, 103, and the gasket mounting grooves 102, 103 are orthogonal to the longitudinal direction of the metal plate. It has a pair of straight portions 102a and 103a along both edges in the width direction. In each drawing attached to the present specification, the ridges 111, 113, ... are represented by wavy lines, and the concave lines 110, 112, ... are represented by areas between the wavy lines.

より具体的に説明すると、各伝熱プレート１０…は、それぞれ長方形状に形成され、四隅に開口１００ａ，１００ｂ，１０１ａ，１０１ｂが形成されている。すなわち、各伝熱プレート１０…は、幅方向の一端側に二つの第一開口１００ａ，１００ｂが長手方向に間隔をあけて設けられるとともに、幅方向の他端側に二つの第二開口１０１ａ，１０１ｂが長手方向に間隔をあけて設けられている。本実施形態において、第一開口１００ａ，１００ｂ及び第二開口１０１ａ，１０１ｂは、何れも円形に形成されている。   More specifically, each of the heat transfer plates 10 is formed in a rectangular shape, and openings 100a, 100b, 101a, and 101b are formed at four corners. That is, each heat transfer plate 10 is provided with two first openings 100a and 100b at one end in the width direction at intervals in the longitudinal direction, and two second openings 101a and 100a at the other end in the width direction. 101b are provided at intervals in the longitudinal direction. In the present embodiment, the first openings 100a and 100b and the second openings 101a and 101b are all formed in a circular shape.

そして、本実施形態に伝熱プレート１０は、前記ガスケット装着溝１０２，１０３として、二つの第二開口１０１ａ，１０１ｂを躱す一方で二つの第一開口１００ａ，１００ｂを取り囲んだ環状の第一ガスケット装着溝１０２と、二つの第一開口１００ａ，１００ｂを躱す一方で二つの第二開口１０１ａ，１０１ｂを取り囲んだ環状の第二ガスケット装着溝１０３とが形成されている。また、本実施形態に伝熱プレート１０は、各第一開口１００ａ，１００ｂを独立して包囲する円環状の第三ガスケット装着溝１０４と、各第二開口１０１ａ，１０１ｂを独立して包囲する円環状の第四ガスケット装着溝１０５とが形成されている。   In the present embodiment, the heat transfer plate 10 has an annular first gasket mounting that surrounds the two first openings 100a and 100b as the gasket mounting grooves 102 and 103 while sandwiching the two second openings 101a and 101b. A groove 102 and an annular second gasket mounting groove 103 that surrounds the two second openings 101a and 101b while forming the two first openings 100a and 100b are formed. Further, in the present embodiment, the heat transfer plate 10 includes an annular third gasket mounting groove 104 that independently surrounds the first openings 100a and 100b, and a circle that independently surrounds the second openings 101a and 101b. An annular fourth gasket mounting groove 105 is formed.

前記第一ガスケット装着溝１０２は、伝熱プレート（金属プレート）１０…の両面に設けられており、裏表で重なり合うように配置されている。すなわち、伝熱プレート（金属プレート）１０…の両面に形成された第一ガスケット装着溝１０２は、一方の面側の凸条１１１…，１１３…の頂点と他方の面側の凸条１１１…，１１３…の頂点との中間位置に共通の底部を有している。   The first gasket mounting grooves 102 are provided on both surfaces of the heat transfer plates (metal plates) 10 and are arranged so as to overlap each other. That is, the first gasket mounting grooves 102 formed on both surfaces of the heat transfer plates (metal plates) 10... Are formed at the tops of the ridges 111... 113 on one side and the ridges 111 on the other side. It has a common bottom part in the middle position with the top of 113 ....

前記第一ガスケット装着溝１０２は、上述の如く、伝熱プレート１０…の幅方向の両端縁に沿った一対のストレート部１０２ａ，１０２ａを有している。すなわち、第一ガスケット装着溝１０２は、伝熱プレート１０…の幅方向の両端縁近傍に長手方向に直線状に延びるストレート部１０２ａ，１０２ａを一部に備えている。   As described above, the first gasket mounting groove 102 has a pair of straight portions 102a and 102a along both end edges in the width direction of the heat transfer plates 10. That is, the first gasket mounting groove 102 includes straight portions 102 a and 102 a extending in a straight line in the longitudinal direction in the vicinity of both end edges in the width direction of the heat transfer plates 10.

また、前記第二ガスケット装着溝１０３は、伝熱プレート（金属プレート）１０…の両面に設けられており、裏表で重なり合うように配置されている。すなわち、伝熱プレート（金属プレート）１０…の両面に形成された第二ガスケット装着溝１０３は、一方の面側の凸条１１１…，１１３…の頂点と他方の面側の凸条１１１…，１１３…の頂点との中間位置に共通の底部を有している。   The second gasket mounting grooves 103 are provided on both surfaces of the heat transfer plates (metal plates) 10 and are arranged so as to overlap each other. That is, the second gasket mounting groove 103 formed on both surfaces of the heat transfer plate (metal plate) 10... Has the top of the ridges 111... 113 on one side and the ridges 111 on the other side. It has a common bottom part in the middle position with the top of 113 ....

また、第二ガスケット装着溝１０３は、伝熱プレート１０…の幅方向の両端縁に沿った一対のストレート部１０３ａ、１０３ａを有している。すなわち、第二ガスケット装着溝１０３は、伝熱プレート１０…の幅方向の両端縁近傍に長手方向に直線状に延びるストレート部１０３ａ，１０３ａを一部に備えている。   The second gasket mounting groove 103 has a pair of straight portions 103a and 103a along both edges in the width direction of the heat transfer plates 10. That is, the second gasket mounting groove 103 includes, in part, straight portions 103a and 103a extending linearly in the longitudinal direction in the vicinity of both end edges in the width direction of the heat transfer plates 10.

そして、第三ガスケット装着溝１０４は、伝熱プレート１０の面上で第一開口１００ａ，１００ｂと同心の円環状に形成され、第四ガスケット装着溝１０５は、伝熱プレート１０の面上で第二開口１０１ａ，１０１ｂと同心の円環状に形成されている。該第三ガスケット装着溝１０４及び第四ガスケット装着溝１０５は、何れも伝熱プレート（金属プレート）１０…の両面に設けられており、第一ガスケット装着溝１０２及び第二ガスケット装着溝１０３と同様に、裏表で共通した底部を有している。   The third gasket mounting groove 104 is formed in an annular shape concentric with the first openings 100 a and 100 b on the surface of the heat transfer plate 10, and the fourth gasket mounting groove 105 is formed on the surface of the heat transfer plate 10. It is formed in an annular shape concentric with the two openings 101a and 101b. The third gasket mounting groove 104 and the fourth gasket mounting groove 105 are both provided on both surfaces of the heat transfer plate (metal plate) 10... Are the same as the first gasket mounting groove 102 and the second gasket mounting groove 103. In addition, they have a common bottom on the front and back.

そして、本実施形態に係る伝熱プレート１０は、第一ガスケット装着溝１０２と第二ガスケット装着溝１０３とが一部を重ならせて配置されている。すなわち、第一ガスケット装着溝１０２及び第二ガスケット装着溝１０３は、互いのストレート部１０２ａ，１０２ａ，１０３ａ，１０３ａを一致させるようにして形成されている。   In the heat transfer plate 10 according to this embodiment, the first gasket mounting groove 102 and the second gasket mounting groove 103 are arranged so as to partially overlap each other. That is, the first gasket mounting groove 102 and the second gasket mounting groove 103 are formed so that the straight portions 102a, 102a, 103a, and 103a are aligned with each other.

また、第一ガスケット装着溝１０２は、第三ガスケット装着溝１０４と部分的に重なって形成され、第二ガスケット装着溝１０３は、第四ガスケット装着溝１０５と部分的に重なって形成されている。   The first gasket mounting groove 102 is formed so as to partially overlap with the third gasket mounting groove 104, and the second gasket mounting groove 103 is formed so as to partially overlap with the fourth gasket mounting groove 105.

そして、本実施形態に係る伝熱プレート１０は、少なくとも第一ガスケット装着溝１０２及び第二ガスケット装着溝１０３に包囲された領域内に複数の凹条１１０…，１１２…及び凸条１１１…，１１３…が形成されている。   The heat transfer plate 10 according to the present embodiment includes a plurality of concave stripes 110, 112, and convex stripes 111, 113 in at least an area surrounded by the first gasket mounting groove 102 and the second gasket mounting groove 103. ... is formed.

より具体的に説明すると、本実施形態に係る伝熱プレート１０は、幅方向内側で各ストレート部１０２ａ，１０２ａ，１０３ａ，１０３ａに沿った所定範囲（以下、伝熱補強領域という）ＲＡを除く領域（以下、主伝熱領域という）ＣＡが長手方向に延びる中心線ＣＬを境にして幅方向で二つの領域に区画されている。そして、主伝熱領域ＣＡにおける幅方向の一方の領域ＣＡ１に形成される凹条（以下、伝熱用凹条という）１１０…及び凸条（以下、伝熱用凸条という）１１１…は、長手方向に延びる中心線ＣＬから当該一方の領域ＣＡ１と隣接する伝熱補強領域ＲＡとの境界ＤＬ１にまで延び、長手方向に延びる中心線ＣＬ側から境界ＤＬ１に向かうにつれて長手方向の何れか一端側に先下りに傾斜するように形成されている。これに対し、主伝熱領域ＣＡにおける幅方向の他方の領域ＣＡ２に形成される伝熱用凹条１１０…及び伝熱用凸条１１１…は、長手方向に延びる中心線ＣＬから当該他方の領域ＣＡ２と隣接する伝熱補強領域ＲＡとの境界ＤＬ２にまで延び、長手方向に延びる中心線ＣＬ側から境界ＤＬ２に向かうにつれて長手方向の何れか一端側に先下りに傾斜するように形成されている。   More specifically, the heat transfer plate 10 according to the present embodiment is a region excluding a predetermined range (hereinafter referred to as a heat transfer reinforcement region) RA along each straight portion 102a, 102a, 103a, 103a on the inner side in the width direction. CA (hereinafter referred to as a main heat transfer region) is divided into two regions in the width direction with a center line CL extending in the longitudinal direction as a boundary. And the groove (hereinafter referred to as heat transfer groove) 110 ... and the protrusion (hereinafter referred to as heat transfer protrusion) 111 ... formed in one area CA1 in the width direction in the main heat transfer area CA are: One end side in the longitudinal direction extends from the center line CL extending in the longitudinal direction to the boundary DL1 between the one region CA1 and the adjacent heat transfer reinforcing region RA and going from the center line CL extending in the longitudinal direction toward the boundary DL1. It is formed so as to incline forward and backward. On the other hand, the heat transfer recesses 110 and the heat transfer protrusions 111 formed in the other region CA2 in the width direction in the main heat transfer region CA are the other region from the center line CL extending in the longitudinal direction. It extends to the boundary DL2 between the CA2 and the adjacent heat transfer reinforcement region RA, and is formed so as to incline forward or downward toward one end side in the longitudinal direction from the center line CL side extending in the longitudinal direction toward the boundary DL2. .

そして、一方の領域ＣＡ１内の伝熱用凹条１１０…と他方の領域ＣＡ２内の伝熱用凹条１１０…とが中心線ＣＬ上で接続されるとともに、一方の領域ＣＡ１内の伝熱用凸条１１１…と他方の領域ＣＡ２内の伝熱用凸条１１１…とが中心線ＣＬ上で接続されている。すなわち、主伝熱領域ＣＡ内の伝熱用凹条１１０…及び伝熱用凸条１１１…のそれぞれは、長手方向に延びる中心線ＣＬ上で屈曲した状態で長手方向に並び、ヘリングボーン状になっている。本実施形態において、主伝熱領域ＣＡ内の伝熱用凸条１１１…同士の間隔（伝熱用凹条１１０…同士の間隔）Ｐ１は、何れの箇所においても同一に設定されている。   Then, the heat transfer groove 110 in the one area CA1 and the heat transfer groove 110 in the other area CA2 are connected on the center line CL, and the heat transfer groove in the one area CA1. The ridges 111 are connected to the center line CL on the heat transfer ridges 111 in the other area CA2. That is, each of the heat transfer ridges 110 and the heat transfer ridges 111 in the main heat transfer area CA are aligned in the longitudinal direction in a state of being bent on the center line CL extending in the longitudinal direction, and are in a herringbone shape. It has become. In the present embodiment, the interval P1 between the heat transfer ridges 111 in the main heat transfer area CA (the interval between the heat transfer ridges 110) is set to be the same in any part.

これにより、主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…は、幅方向に延びる仮想線ＳＬに対して所定角度θ１で傾斜した状態になっている。なお、主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…の前記仮想線ＳＬに対する傾斜角度θ１は、流通の対象となる熱交換媒体及び被熱交換媒体の熱交換特性等に応じて適宜決められる。なお、本実施形態に係る伝熱プレート１０は、金属プレートをプレス成形したものであるため、一方の面の伝熱用凸条１１１…は他方の面の伝熱用凹条１１０…を構成し、一方の面の伝熱用凹条１１０…は他方の面の伝熱用凸条１１１…を構成している。従って、伝熱プレートは、両面において伝熱用凹条１１０…及び伝熱用凸条１１１…が略同形態で配置されている。また、伝熱補強領域ＲＡ内の後述する補強伝熱用凹条１１２…及び後述する補強伝熱用凸条１１３…も同様である。   As a result, the heat transfer ridges 110 and the heat transfer ridges 111 in the main heat transfer area CA (CA1, CA2) are inclined at a predetermined angle θ1 with respect to the virtual line SL extending in the width direction. It has become. The inclination angle θ1 of the heat transfer ridges 110 and the heat transfer ridges 111 in the main heat transfer area CA (CA1, CA2) with respect to the virtual line SL is determined by the heat exchange medium and the object to be distributed. It is appropriately determined according to the heat exchange characteristics of the heat exchange medium. In addition, since the heat transfer plate 10 according to the present embodiment is formed by press-molding a metal plate, the heat transfer ridges 111 on one surface constitute the heat transfer ridges 110 on the other surface. The heat transfer ridges 110 on one surface constitute the heat transfer ridges 111 on the other surface. Accordingly, the heat transfer plate has the heat transfer concave stripes 110 and the heat transfer convex stripes 111 arranged in substantially the same form on both sides. The same applies to the reinforcing heat transfer recesses 112 described later and the reinforcing heat transfer protrusions 113 described later in the heat transfer reinforcement region RA.

そして、各伝熱補強領域ＲＡ内の凹条（以下、補強伝熱用凹条という）１１２…及び凸条（以下、補強伝熱用凸条という）１１３…は、幅方向内側にある当該伝熱補強領域（所定範囲）ＲＡの境界ＤＬ１，ＤＬ２を基準とする幅方向内側の対称位置（主伝熱領域ＣＡの一方の領域ＣＡ１又は他方の領域ＣＡ２）にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して逆向きに傾斜している。   And, the recesses (hereinafter referred to as “reinforcement heat transfer recesses”) 112 and the protrusions (hereinafter referred to as “reinforcement heat transfer protrusions”) 113 in each heat transfer reinforcement region RA are in the width direction inside. Heat transfer grooves 110 at symmetrical positions (one area CA1 of the main heat transfer area CA or the other area CA2) on the inner side in the width direction with respect to the boundaries DL1 and DL2 of the heat reinforcement area (predetermined range) RA and It inclines in the reverse direction with respect to the convexities 111 for heat transfer.

すなわち、主伝熱領域ＣＡの一方の領域ＣＡ１と隣接する伝熱補強領域ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、前記一方の領域ＣＡ１内の伝熱用凹条１１０…及び伝熱用凸条１１１…の延びる方向に対して交差方向に延び、主伝熱領域ＣＡの他方の領域ＣＡ２と隣接する伝熱補強領域ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、前記他方の領域ＣＡ２内の伝熱用凹条１１０…及び伝熱用凸条１１１…の延びる方向に対して交差方向に延びるように形成されている。   That is, the reinforcing heat transfer concave stripes 112 and the reinforcing heat transfer convex stripes 113 in the heat transfer reinforcing area RA adjacent to the one area CA1 of the main heat transfer area CA are the heat transfer in the one area CA1. Reinforcing heat transfer recesses in the heat transfer reinforcement region RA extending in the direction intersecting with the extending direction of the recesses 110 for heat transfer and the protrusions 111 for heat transfer and adjacent to the other region CA2 of the main heat transfer region CA. 112 and the reinforcing heat transfer ridges 113 are formed to extend in a crossing direction with respect to the extending direction of the heat transfer ridges 110 and the heat transfer ridges 111 in the other region CA2. Yes.

各伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、前記幅方向に延びる仮想線ＳＬに対する角度θ２が隣り合う領域（主伝熱領域ＣＡの一方の領域ＣＡ１又は他方の領域ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…の前記幅方向に延びる仮想線ＳＬに対する角度θ１に対応して決定される。   In each heat transfer reinforcement region (predetermined range) RA, the reinforcing heat transfer concave 112 and the reinforcing heat transfer 113 are adjacent to each other at an angle θ2 with respect to the virtual line SL extending in the width direction (main heat transfer). It is determined corresponding to the angle θ1 with respect to the virtual line SL extending in the width direction of the heat transfer concave stripes 110... And the heat transfer convex stripes 111 in the one area CA1 or the other area CA2) of the area CA.

具体的には、各伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、隣り合う領域（主伝熱領域ＣＡの一方の領域ＣＡ１又は他方の領域ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…の前記幅方向に延びる仮想線ＳＬに対する角度θ１が４５°よりも小さい場合、前記幅方向に延びる仮想線ＳＬに対する角度θ２が４５°以上に設定され、隣り合う領域（主伝熱領域ＣＡの一方の領域ＣＡ１又は他方の領域ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…の前記幅方向に延びる仮想線ＳＬに対する角度θ１が４５°よりも大きい場合、前記幅方向に延びる仮想線ＳＬに対する角度θ２が４５°以下に設定される。   Specifically, the reinforced heat transfer ridges 112 and the reinforced heat transfer ridges 113 in each heat transfer reinforcement region (predetermined range) RA are adjacent regions (one region CA1 of the main heat transfer region CA). Alternatively, when the angle θ1 with respect to the virtual line SL extending in the width direction of the heat transfer concave stripes 110 and the heat transfer convex stripes 111 in the other area CA2) is smaller than 45 °, the virtual line extending in the width direction. The angle θ2 with respect to SL is set to 45 ° or more, and the heat transfer ridges 110 ... and the heat transfer ridges 111 in adjacent areas (one area CA1 of the main heat transfer area CA or the other area CA2) When the angle θ1 with respect to the virtual line SL extending in the width direction is larger than 45 °, the angle θ2 with respect to the virtual line SL extending in the width direction is set to 45 ° or less.

また、各伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、隣り合う領域（主伝熱領域ＣＡの一方の領域ＣＡ１又は他方の領域ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…の前記幅方向に延びる仮想線ＳＬに対する角度θ１が４５°である場合、前記幅方向に延びる仮想線ＳＬに対する角度θ２が４５°に設定される。   Further, the reinforcing heat transfer ridges 112 and the reinforced heat transfer ridges 113 in each heat transfer reinforcement region (predetermined range) RA are adjacent regions (one region CA1 of the main heat transfer region CA or the other one). When the angle θ1 with respect to the virtual line SL extending in the width direction of the heat transfer concave stripes 110 and the heat transfer convex lines 111 in the area CA2) is 45 °, the angle θ2 with respect to the virtual line SL extending in the width direction. Is set to 45 °.

すなわち、各伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、前記幅方向に延びる仮想線ＳＬに対する角度θ２を上記条件に設定することが好ましいが、仮想線ＳＬに対して４５°で傾斜している状態で、長手方向と幅方向の断面係数が等しくなるため、強度的に安定した状態になる。   That is, the reinforcing heat transfer ridges 112 and the reinforcement heat transfer ridges 113 in each heat transfer reinforcement region (predetermined range) RA set the angle θ2 with respect to the virtual line SL extending in the width direction as the above condition. However, since the section modulus in the longitudinal direction and that in the width direction are equal in a state where the section is inclined at 45 ° with respect to the virtual line SL, the strength is stable.

なお、図３に示す伝熱プレート１０は、主伝熱領域ＣＡ（一方の領域ＣＡ１及び他方の領域ＣＡ２）の伝熱用凹条１１０…及び伝熱用凸条１１１…は、幅方向に延びる仮想線ＳＬに対する角度θ１が３０°又は略３０°に設定され、各伝熱補強領域ＲＡの補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…が仮想線ＳＬに対して４５°又は略４５°に設定されている。   In addition, in the heat transfer plate 10 shown in FIG. 3, the heat transfer ridges 110 and the heat transfer ridges 111 in the main heat transfer area CA (one area CA1 and the other area CA2) extend in the width direction. The angle θ1 with respect to the imaginary line SL is set to 30 ° or substantially 30 °, and the reinforced heat transfer ridges 112 and the reinforced heat transfer ridges 113 of each heat transfer reinforcement region RA are 45 ° to the imaginary line SL. Or it is set to about 45 degrees.

本実施形態に係る伝熱プレート１０は、隣り合う補強伝熱用凸条１１３…の間隔（補強伝熱用凹条１１２…の間隔）Ｐ２が一定になっている。また、本実施形態に係る伝熱プレート１０は、隣り合う補強伝熱用凸条１１３…の間隔（補強伝熱用凹条１１２…の間隔）Ｐ２と主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）の伝熱用凸条１１１…間の間隔（伝熱用凹条１１０…件の間隔）Ｐ１とが同一になっている。そのため、伝熱用凸条１１１…（伝熱用凹条１１０…）及び補強伝熱用凸条１１３…（伝熱用凹条１１０…）は、前記境界ＤＬ１，ＤＬ２上で長手方向に位置ずれして配置されている。すなわち、本実施形態において、補強伝熱用凸条１１３…と伝熱用凸条１１１…とは前記仮想線ＳＬに対する角度θ１，θ２が異なった状態で間隔Ｐ１，Ｐ２が同一に設定されているため、伝熱用凸条１１１…（伝熱用凹条１１０…）及び補強伝熱用凸条１１３…（伝熱用凹条１１０…）は一部を除き前記境界ＤＬ１，ＤＬ２上で長手方向に位置ずれしている。なお、この位置ずれは全ての伝熱用凸条１１１…及び伝熱用凹条１１０と補強伝熱用凸条１１３…及び補強伝熱用凹条１１２…との間に起こるものではなく、伝熱用凸条１１１…及び伝熱用凹条１１０に対して補強伝熱用凸条１１３…及び補強伝熱用凹条１１２…が接続された状態になる部分もある。   In the heat transfer plate 10 according to this embodiment, the interval between adjacent reinforcing heat transfer ridges 113 (interval between reinforcement heat transfer ridges 112) P2 is constant. Further, the heat transfer plate 10 according to the present embodiment has an interval between adjacent reinforcing heat transfer ridges 113 (interval between reinforcement heat transfer ridges 112) P2 and the main heat transfer area CA (CA1, CA2). The interval between the heat transfer ridges 111... (The heat transfer groove 110... Interval) P1 is the same. Therefore, the heat transfer ridges 111 (the heat transfer ridges 110) and the reinforcing heat transfer ridges 113 (the heat transfer ridges 110) are displaced in the longitudinal direction on the boundaries DL1 and DL2. Are arranged. That is, in this embodiment, the reinforcing heat transfer ridges 113 and the heat transfer ridges 111 are set to have the same intervals P1 and P2 with different angles θ1 and θ2 with respect to the virtual line SL. Therefore, the heat transfer ridges 111... (Heat transfer ridges 110...) And the reinforcing heat transfer ridges 113. Is misaligned. This misalignment does not occur between all the heat transfer ridges 111 and the heat transfer recesses 110 and the reinforcement heat transfer ridges 113 and the reinforcement heat transfer ridges 112. There are also portions where the reinforcing heat transfer ridges 113 and the reinforcing heat transfer ridges 112 are connected to the heat ridges 111 and the heat transfer ridges 110.

そして、主伝熱領域ＣＡと伝熱補強領域ＲＡ（所定範囲）との境界ＤＬ１，ＤＬ２は、作業者がプレート式熱交換器１を組み立てたり分解したりするときに、伝熱プレート１０の幅方向の両端部を把持する領域が伝熱補強領域ＲＡ（所定範囲）内に含まれるように設定される。   The boundaries DL1 and DL2 between the main heat transfer area CA and the heat transfer reinforcement area RA (predetermined range) are the widths of the heat transfer plate 10 when an operator assembles or disassembles the plate heat exchanger 1. The region that holds both ends of the direction is set to be included in the heat transfer reinforcement region RA (predetermined range).

具体的には、主伝熱領域ＣＡとの各伝熱補強領域ＲＡ（所定範囲）の境界ＤＬ１，ＤＬ２は、ガスケット装着溝１０２，１０３のストレート部１０２ａ，１０３ａの中心線ＣＬ１から幅方向に伝熱プレート（プレス成形後の金属プレート）１０の幅方向の全寸法Ｘの５％乃至１０％の距離Ｘ１をおいた位置に設定されている。   Specifically, boundaries DL1 and DL2 of each heat transfer reinforcement region RA (predetermined range) with the main heat transfer region CA are transmitted in the width direction from the center line CL1 of the straight portions 102a and 103a of the gasket mounting grooves 102 and 103. It is set at a position with a distance X1 of 5% to 10% of the total dimension X in the width direction of the hot plate (metal plate after press forming) 10.

すなわち、幅方向の両側にある伝熱補強領域ＲＡ，ＲＡの幅方向の合計寸法が、伝熱プレート（プレス成形後の金属プレート）１０の幅方向の全寸法Ｘの５％乃至１０％の二倍の長さからガスケット装着溝１０２，１０３の一本分の幅寸法（ガスケットの幅寸法）を引いた値になるように設定される。   That is, the total dimension in the width direction of the heat transfer reinforcement regions RA, RA on both sides in the width direction is 5% to 10% of the total dimension X in the width direction of the heat transfer plate (metal plate after press forming) 10. It is set to a value obtained by subtracting the width dimension (the width dimension of the gasket) of one of the gasket mounting grooves 102 and 103 from the double length.

ここで具体的な数値を挙げて説明すると、一般的に一人の作業者が設置や取り外しを行うことのできる伝熱プレート１０…のサイズは、長手方向の寸法Ｙが２０００ｍｍ〜５０００ｍｍで幅方向の全寸法Ｘが７００ｍｍ〜１６００ｍｍであるため、主伝熱領域ＣＡと各伝熱補強領域ＲＡ（所定範囲）との境界ＤＬ１，ＤＬ２は、ガスケット装着溝１０２，１０３のストレート部１０２ａ，１０３ａの中心線ＣＬ１から３５ｍｍ〜１６０ｍｍ（好ましくは、幅方向の全寸法Ｘの５％である３５ｍｍ〜８０ｍｍ）の位置に設定される。そして、この種の伝熱プレート１０は、流路の幅（熱交換する領域）を広くするために、ガスケット装着溝１０２，１０３（ストレート部１０２ａ，１０３ａ）が伝熱プレート１０の幅方向の端縁の近くに配置され、ガスケット装着溝１０２，１０３（ストレート部１０２ａ，１０３ａ）の中心線ＣＬ１から伝熱プレート１０の幅方向の端縁までの距離が約２０ｍｍ〜約３０ｍｍに設定されることから、上述のように伝熱補強領域ＲＡの幅方向の寸法を設定することで、当該伝熱補強領域ＲＡ内に把持位置が含まれることになる。   Here, the specific numerical values will be described. Generally, the size of the heat transfer plate 10 that can be installed and removed by one worker is such that the dimension Y in the longitudinal direction is 2000 mm to 5000 mm and the width is in the width direction. Since all the dimensions X are 700 mm to 1600 mm, the boundaries DL1 and DL2 between the main heat transfer area CA and each heat transfer reinforcement area RA (predetermined range) are center lines of the straight portions 102a and 103a of the gasket mounting grooves 102 and 103. It is set at a position of 35 mm to 160 mm from CL1 (preferably 35 mm to 80 mm which is 5% of the total dimension X in the width direction). In this type of heat transfer plate 10, the gasket mounting grooves 102 and 103 (straight portions 102 a and 103 a) are end portions in the width direction of the heat transfer plate 10 in order to increase the width of the flow path (region for heat exchange). The distance from the center line CL1 of the gasket mounting grooves 102 and 103 (straight portions 102a and 103a) to the edge in the width direction of the heat transfer plate 10 is set to about 20 mm to about 30 mm. By setting the dimension in the width direction of the heat transfer reinforcement region RA as described above, the gripping position is included in the heat transfer reinforcement region RA.

図２に戻り、前記ガスケット１１，１２，１３，１４は、伝熱プレート１０の面交差方向から見たガスケット装着溝１０２，１０３，１０４，１０５の形態に対応して形成されている。より具体的に説明すると、本実施形態において、前記ガスケット１１，１２，１３，１４，１６として、第一ガスケット装着溝１０２の形態に対応して無端環状に形成された第一ガスケット１１と、第二ガスケット装着溝１０３の形態に対応して無端環状に形成された第二ガスケット１２と、第三ガスケット装着溝１０４の形態に対応して無端円環状に形成された第三ガスケット１３と、第四ガスケット装着溝１０５の形態に対応して無端円環状に形成された第四ガスケット１４とを備えている。   Returning to FIG. 2, the gaskets 11, 12, 13, and 14 are formed corresponding to the forms of the gasket mounting grooves 102, 103, 104, and 105 as viewed from the plane crossing direction of the heat transfer plate 10. More specifically, in the present embodiment, as the gaskets 11, 12, 13, 14, and 16, the first gasket 11 formed in an endless ring corresponding to the form of the first gasket mounting groove 102, A second gasket 12 formed in an endless ring corresponding to the form of the second gasket mounting groove 103, a third gasket 13 formed in an endless ring corresponding to the form of the third gasket mounting groove 104, and a fourth Corresponding to the form of the gasket mounting groove 105, a fourth gasket 14 formed in an endless annular shape is provided.

そして、本実施形態において、第一ガスケット１１に対して第四ガスケット１４が連結されるとともに、第二ガスケット１２に対して第三ガスケット１３が連結されている。これにより、伝熱プレート１０の何れか一方の面側にある第一ガスケット装着溝１０２に第一ガスケット１１を装着したときに、同一面側にある第四ガスケット装着溝１０５に第四ガスケット１４を一緒に装着でき、伝熱プレート１０の何れか他方の面側にある第二ガスケット装着溝１０３に第二ガスケット１２を装着したときに、同一面側にある第三ガスケット装着溝１０４に第三ガスケット１３を一緒に装着できるようになっている。   In the present embodiment, the fourth gasket 14 is connected to the first gasket 11 and the third gasket 13 is connected to the second gasket 12. As a result, when the first gasket 11 is mounted in the first gasket mounting groove 102 on one side of the heat transfer plate 10, the fourth gasket 14 is inserted into the fourth gasket mounting groove 105 on the same side. When the second gasket 12 is mounted on the second gasket mounting groove 103 on either side of the heat transfer plate 10, the third gasket can be mounted on the third gasket mounting groove 104 on the same surface side. 13 can be attached together.

なお、便宜上、第四ガスケット１４の連結された第一ガスケット１１と第三ガスケット１３の連結された第二ガスケット１２とを別個に説明したが、本実施形態においては、何れも形態及びサイズが共通しているため、第四ガスケット１４の連結された第一ガスケット１１と第三ガスケット１３の連結された第二ガスケット１２とは共通した部材である。すなわち、本実施形態に係るプレート式熱交換器１は、第四ガスケット１４の連結された第一ガスケット１１を上下が逆になるように１８０°回転させる（表裏をそのままにして１８０°回転させる）ことで第三ガスケット１３の連結された第二ガスケット１２として使用される。   For convenience, the first gasket 11 to which the fourth gasket 14 is connected and the second gasket 12 to which the third gasket 13 is connected have been described separately. Therefore, the first gasket 11 connected to the fourth gasket 14 and the second gasket 12 connected to the third gasket 13 are common members. That is, the plate heat exchanger 1 according to the present embodiment rotates the first gasket 11 connected to the fourth gasket 14 by 180 ° so that the top and bottom are reversed (rotate 180 ° with the front and back being left as they are). Thus, the second gasket 12 connected to the third gasket 13 is used.

そして、上記構成の伝熱プレート１０は、プレート式熱交換器１として組み付けられる（積層される）に当り、一つおきに上下反転させる（幅方向に延びる中心線（図示しない）を基準に１８０°回転させる）ことで、隣り合う伝熱プレート１０，１０の伝熱用凸条１１１…同士が交差衝合するとともに補強伝熱用凸部１１３…同士が交差衝合するようになっている。   When the heat transfer plate 10 having the above configuration is assembled (stacked) as the plate heat exchanger 1, the heat transfer plate 10 is inverted every other portion (based on a center line (not shown) extending in the width direction). ), The heat transfer protrusions 111 of the adjacent heat transfer plates 10 and 10 cross each other and the reinforcement heat transfer protrusions 113 cross each other.

そして、本実施形態に係る伝熱プレート１０は、伝熱補強領域ＲＡ内の補強伝熱用凸条１１３…及び補強伝熱用凹条１１２…が幅方向に延びる仮想線ＳＬに対して４５°の角度で傾斜しているため、上述の如く、伝熱プレート１０，１０を積層したときに、長手方向及び幅方向における補強伝熱用凸条１１３…同士の接触点の間隔が狭くなるようになっている。これにより、積層時におけるガスケット装着溝１０２，１０３（第一ガスケット装着溝１０２，第二ガスケット装着溝１０３）のストレート部１０２，１０３ａ近傍の強度が高まる結果、ガスケット１１，１２（第一ガスケット１１，第二ガスケット１２）と伝熱プレート１０とが確実に圧接してシール性が担保できるようになっている。   Further, the heat transfer plate 10 according to the present embodiment is 45 ° with respect to an imaginary line SL in which the ridges 113 for reinforcing heat transfer and the ridges for reinforcing heat transfer 112 in the heat transfer reinforcement region RA extend in the width direction. Therefore, when the heat transfer plates 10 and 10 are laminated as described above, the interval between the contact points of the reinforcing heat transfer protrusions 113 in the longitudinal direction and the width direction is reduced. It has become. As a result, the strength in the vicinity of the straight portions 102, 103a of the gasket mounting grooves 102, 103 (first gasket mounting groove 102, second gasket mounting groove 103) at the time of lamination is increased. As a result, the gaskets 11, 12 (first gasket 11, The second gasket 12) and the heat transfer plate 10 are securely brought into pressure contact with each other so that the sealing performance can be secured.

図１及び図２に戻り、前記一対のフレームプレート１５，１６は、厚手の金属プレートで構成されている。そして、各フレームプレート１５，１６は、長方形状に形成されており、各伝熱プレート１０の平面サイズよりも大きなサイズに設定されている。そして、一対のフレームプレート１５，１６のうち、一方のフレームプレート１５は、伝熱プレート１０の第一開口１００ａ，１００ｂ（熱交換媒体流入路Ｒ３及び熱交換媒体流出路Ｒ４）と対応した位置、及び第二開口１０１ａ，１０１ｂ（被熱交換媒体流入路Ｒ５及び被熱交換媒体流出路Ｒ６）と対応した位置に貫通穴（採番しない）が穿設されている。そして、該一方のフレームプレート１５は、図１に示す如く、その外面には配管を接続するための筒状の接続ノズル１６０…が各貫通穴に対応して取り付けられている。   Returning to FIGS. 1 and 2, the pair of frame plates 15 and 16 are formed of thick metal plates. Each frame plate 15, 16 is formed in a rectangular shape, and is set to a size larger than the planar size of each heat transfer plate 10. Of the pair of frame plates 15 and 16, one frame plate 15 corresponds to the first openings 100a and 100b (the heat exchange medium inflow path R3 and the heat exchange medium outflow path R4) of the heat transfer plate 10, In addition, through holes (not numbered) are formed at positions corresponding to the second openings 101a and 101b (heat exchange medium inflow path R5 and heat exchange medium outflow path R6). As shown in FIG. 1, cylindrical connection nozzles 160 for connecting pipes are attached to the outer surface of the one frame plate 15 so as to correspond to the respective through holes.

一対のフレームプレート１５，１６は、何れも長手方向と直交する幅方向の両端部に複数の切欠部（採番しない）が設けられている。すなわち、本実施形態に係るプレート式熱交換器１は、締付手段１７がボルト（採番しない）とナット（採番しない）とで構成されており、一対のフレームプレート１５，１６に跨るように両フレームプレート１５，１６の両端部に形成された切欠部内に配置したボルトに対してナットを螺合することで両フレームプレート１５，１６を締め付けるようになっている。   Each of the pair of frame plates 15 and 16 is provided with a plurality of notches (not numbered) at both ends in the width direction orthogonal to the longitudinal direction. That is, in the plate heat exchanger 1 according to the present embodiment, the tightening means 17 is composed of bolts (not numbered) and nuts (not numbered), and straddles a pair of frame plates 15 and 16. The frame plates 15 and 16 are tightened by screwing nuts into bolts arranged in notches formed at both ends of the frame plates 15 and 16.

なお、特に言及しないが、この種のプレート式熱交換器１は、一般的に、一対のフレームプレート１５，１６の上端部及び下端部にレールＬが挿通されており、積層される複数枚の伝熱プレート１０…の長手方向の両端部（上端部及び下端部）がレールＬに支持されている。これにより、該プレート式熱交換器１は、一対のフレームプレート１５，１６の締め付けを開放した状態で各伝熱プレート１０をレールＬに沿ってスライドさせることができるようになっている。   Although not particularly mentioned, this type of plate heat exchanger 1 generally has a plurality of laminated sheets in which rails L are inserted into upper and lower ends of a pair of frame plates 15 and 16. Both end portions (upper end portion and lower end portion) of the heat transfer plates 10 in the longitudinal direction are supported by the rail L. As a result, the plate heat exchanger 1 can slide the heat transfer plates 10 along the rails L in a state where the tightening of the pair of frame plates 15 and 16 is released.

本実施形態に係るプレート式熱交換器１は、以上の通りであり、組み立て時又は分解時に作業者が伝熱プレート１０の長手方向の略中間部にある幅方向の両端部を持って当該伝熱プレート１０の設置や運搬を行うことになる。   The plate heat exchanger 1 according to the present embodiment is as described above, and an operator has both ends of the heat transfer plate 10 in the width direction at substantially the middle part of the heat transfer plate 10 during assembly or disassembly. The heat plate 10 is installed and transported.

本実施形態に係る伝熱プレート１０は、上述の如く、幅方向内側で各ストレート部１０２ａ，１０３ａに沿った伝熱補強領域（所定範囲）ＲＡにある補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…が、幅方向内側にある前記伝熱補強領域（所定範囲）ＲＡの境界ＤＬ１，ＤＬ２を基準とする幅方向内側の対称位置（主伝熱領域ＣＡ（ＣＡ１，ＣＡ２））にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して逆向きに傾斜しているため、作業者が把持することになる幅方向の両端部の長手方向の剛性が高くなり、作業者が伝熱プレート１０の長手方向と直交する両端部を把持したときの撓みが抑制される。   As described above, the heat transfer plate 10 according to the present embodiment includes the reinforcing heat transfer recess 112 in the heat transfer reinforcement region (predetermined range) RA along the straight portions 102a and 103a on the inner side in the width direction, and the reinforcement transfer. The ridges 113 for heat are symmetrical on the inner side in the width direction with respect to the boundaries DL1 and DL2 of the heat transfer reinforcing region (predetermined range) RA on the inner side in the width direction (main heat transfer regions CA (CA1, CA2)). Are inclined in the opposite direction with respect to the heat transfer ridges 110 and the heat transfer ridges 111, so that the rigidity in the longitudinal direction at both ends in the width direction that the operator grips increases. The bending when the operator grips both end portions orthogonal to the longitudinal direction of the heat transfer plate 10 is suppressed.

より具体的には、図３に示す如く、ガスケット装着溝１０２，１０３の一部であるストレート部１０２ａ，１０３ａは、伝熱プレート（成型後の金属プレート）１０の幅方向の両端縁近傍に配置されるため、幅方向内側で各ストレート部１０２ａ，１０３ａに沿った伝熱補強領域（所定範囲）ＲＡは作業者の把持位置を含むことになる。   More specifically, as shown in FIG. 3, the straight portions 102 a and 103 a that are a part of the gasket mounting grooves 102 and 103 are arranged in the vicinity of both end edges in the width direction of the heat transfer plate (metal plate after molding) 10. Therefore, the heat transfer reinforcement region (predetermined range) RA along the straight portions 102a and 103a on the inner side in the width direction includes the gripping position of the operator.

そして、伝熱補強領域（所定範囲）ＲＡの境界ＤＬ１，ＤＬ２を基準とする幅方向内側の対称位置（主伝熱領域ＣＡ（ＣＡ１，ＣＡ２））にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…が逆向きに傾斜することで、当該伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、伝熱補強領域（所定範囲）ＲＡ外の主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して交差する方向に延びるため、伝熱用凹条１１０…及び伝熱用凸条１１１…の形成される主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）の曲げ作用に対して対抗することになる。従って、幅方向の両側にあるストレート部１０２ａ，１０３ａ近傍での長手方向の曲げ剛性が高くなるため、作業者が幅方向の両端部を把持したときの長手方向の湾曲が抑制される。これにより、組み立て時又は分解時に作業者が伝熱プレート１０の長手方向の略中間部にある幅方向の両端部を持って当該伝熱プレート１０の設置や運搬を行う際にバランスを崩す虞が格段に低くなり、安全性や作業性が向上することになる。   And the heat-transfer concave stripes 110 at the inner side in the width direction with respect to the boundaries DL1 and DL2 of the heat-transfer reinforcing region (predetermined range) RA (the main heat-transfer regions CA (CA1, CA2)) and the heat transfer The heat transfer reinforcement area 112 (predetermined range) RA and the reinforcement heat transfer depression 112 and the reinforcement heat transfer protrusion 113 in the RA are inclined in the opposite direction to the heat transfer reinforcement area (predetermined range) RA. (Predetermined range) Reinforcing heat transfer ridges 112... And reinforcing heat transfer ridges 113 in RA are in the main heat transfer area CA (CA1, CA2) outside the heat transfer reinforcement area (predetermined range) RA. The main heat transfer area CA (CA1) in which the heat transfer ridges 110 and the heat transfer ridges 111 are formed because they extend in a direction intersecting the heat ridges 110 and the heat transfer ridges 111. , CA2) to counteract the bending action. Accordingly, since the bending rigidity in the longitudinal direction in the vicinity of the straight portions 102a and 103a on both sides in the width direction is increased, the bending in the longitudinal direction when the operator grips both ends in the width direction is suppressed. Thereby, at the time of an assembly or decomposition | disassembly, when an operator has the both ends of the width direction in the substantially intermediate part of the longitudinal direction of the heat-transfer plate 10, installation and conveyance of the said heat-transfer plate 10 may lose a balance. It will be much lower and safety and workability will be improved.

そして、プレート式熱交換器１を組み立てるに当り、伝熱プレート１０の第一ガスケット装着溝１０２に第一ガスケット１１を装着するとともに第三ガスケット装着溝１０４に第三ガスケット１４を装着し、さらに、第二ガスケット装着溝１０３に第二ガスケット１２を装着するとともに第四ガスケット装着溝１０５に第四ガスケット１４を装着した上で、上述の如く、複数枚の伝熱プレート１０…を積層方向で一つおきに上下反転させた状態で積層する。なお、上述の如く、伝熱プレート１０にガスケット１１，１２，１３，１４を装着するに当り、積層時に隣り合う二つの伝熱プレート１０，１０の何れか一方にガスケット１１，１２，１３，１４が装着される。   In assembling the plate heat exchanger 1, the first gasket 11 is mounted in the first gasket mounting groove 102 of the heat transfer plate 10 and the third gasket 14 is mounted in the third gasket mounting groove 104. After the second gasket 12 is mounted in the second gasket mounting groove 103 and the fourth gasket 14 is mounted in the fourth gasket mounting groove 105, a plurality of heat transfer plates 10 are arranged in the stacking direction as described above. Laminate in an inverted state. As described above, when the gaskets 11, 12, 13, and 14 are attached to the heat transfer plate 10, the gaskets 11, 12, 13, and 14 are attached to any one of the two adjacent heat transfer plates 10 and 10 during lamination. Is installed.

そして、一対のフレームプレート１５，１６間に積層された複数枚の伝熱プレート１０…を配置した上で両フレームプレート１５，１６を互いに接近させるように締付手段１７で締め付けることで、伝熱プレート１０，１０間に介装された各ガスケット１１，１２，１３，１４が弾性変形して伝熱プレート１０に圧接し、隣り合う伝熱プレート１０，１０の伝熱用凸条１１１…同士及び補強伝熱用凸条１１１…同士が交差衝合した状態になる。すなわち、各ガスケット１１，１２，１３，１４に包囲された領域に流路が形成される。   A plurality of heat transfer plates 10... Stacked between the pair of frame plates 15 and 16 are disposed, and the frame plates 15 and 16 are tightened by the tightening means 17 so as to approach each other. The gaskets 11, 12, 13, 14 interposed between the plates 10, 10 are elastically deformed and pressed against the heat transfer plate 10, and the heat transfer ridges 111 of the adjacent heat transfer plates 10, 10 and The reinforcing heat transfer protrusions 111 are in a state of crossing each other. That is, a flow path is formed in a region surrounded by each gasket 11, 12, 13, 14.

本実施形態に係るプレート式熱交換器１は、上述の如く、各伝熱プレート１０を境にして熱交換媒体Ａを流通させる第一流路Ｒ１と被熱交換媒体Ｂを流通させる第二流路Ｒ２とが交互に形成され、各伝熱プレート１０に形成された二つの第一開口１００ａ，１００ｂが連なって熱交換媒体Ａを第一流路Ｒ１に対して流出入させる熱交換媒体流入路Ｒ３及び熱交換媒体流出路Ｒ４が形成されるとともに、各伝熱プレート１０に形成された二つの第二開口１０１ａ，１０１ｂが連なって被熱交換媒体Ｂを第二流路Ｒ２に対して流出入させる被熱交換媒体流入路Ｒ５及び被熱交換媒体流出路Ｒ６が形成される。   As described above, the plate heat exchanger 1 according to the present embodiment has the first flow path R1 for circulating the heat exchange medium A and the second flow path for circulating the heat exchange medium B, with each heat transfer plate 10 as a boundary. R2 and R2 are alternately formed, and the two first openings 100a and 100b formed in each heat transfer plate 10 are connected to each other so that the heat exchange medium A flows into and out of the first flow path R1. A heat exchange medium outflow path R4 is formed, and the two second openings 101a and 101b formed in each heat transfer plate 10 are connected to allow the heat exchange medium B to flow into and out of the second flow path R2. A heat exchange medium inflow path R5 and a heat exchange medium outflow path R6 are formed.

本実施形態に係るプレート式熱交換器１は、熱交換媒体流入路Ｒ３が伝熱プレート１０の長手方向の一端側（組み立て時の上側）に形成されるとともに、熱交換媒体流出路Ｒ４が伝熱プレート１０の長手方向の他端側（組み立て時の下側）に形成されるのに対し、被熱交換媒体流入路Ｒ５が伝熱プレート１０の長手方向の他端側（組み立て時の下側）に形成されるとともに、被熱交換媒体流出路Ｒ６が伝熱プレート１０の長手方向の一端側（組み立て時の上側）に形成されるようになっている。   In the plate heat exchanger 1 according to the present embodiment, the heat exchange medium inflow path R3 is formed on one end side in the longitudinal direction of the heat transfer plate 10 (upper side during assembly), and the heat exchange medium outflow path R4 is transmitted. The heat exchange medium inflow path R5 is formed on the other end side in the longitudinal direction of the heat plate 10 (lower side during assembly), whereas the heat exchange medium inflow path R5 is formed on the other end side in the longitudinal direction of the heat transfer plate 10 (lower side during assembly). The heat exchange medium outflow path R6 is formed on one end side in the longitudinal direction of the heat transfer plate 10 (upper side during assembly).

これにより、該プレート式熱交換器１は、図４（ａ）に示す如く、熱交換媒体Ａが第一流路Ｒ１において伝熱プレート１０の長手方向の一端側から他端側に向けて流通し、図４（ｂ）に示す如く、被熱交換媒体Ｂが第二流路Ｒ２において伝熱プレート１０の長手方向の他端側から一端側に向けて流通するようになっており、第一流路Ｒ１内の熱交換媒体Ａと第二流路Ｒ２内の被熱交換媒体Ｂとが伝熱プレート１０（伝熱領域ＣＡ及び伝熱補強領域ＲＡ）を介して熱交換するようになっている。   As a result, in the plate heat exchanger 1, as shown in FIG. 4A, the heat exchange medium A flows from one end side to the other end side in the longitudinal direction of the heat transfer plate 10 in the first flow path R1. As shown in FIG. 4B, the heat exchange medium B is circulated from the other end side in the longitudinal direction of the heat transfer plate 10 toward the one end side in the second flow path R2. The heat exchange medium A in R1 and the heat exchange medium B in the second flow path R2 exchange heat through the heat transfer plate 10 (heat transfer area CA and heat transfer reinforcement area RA).

以上のように、本実施形態に係るプレート式熱交換器１用の伝熱プレート１０は、幅方向内側で各ストレート部１０２ａ，１０３ａに沿った伝熱補強領域（所定範囲）ＲＡにある補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…が、幅方向内側にある前記伝熱補強領域（所定範囲）ＲＡの境界ＤＬ１，ＤＬ２を基準とする幅方向内側の対称位置（主伝熱領域ＣＡ（ＣＡ１，ＣＡ２））にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して逆向きに傾斜しているため、作業者が把持することになる幅方向の両端部の長手方向の剛性が高くなり、作業者が長手方向と直交する両端部を把持したときの撓みが抑制される。   As described above, the heat transfer plate 10 for the plate heat exchanger 1 according to the present embodiment is reinforced in the heat transfer reinforcement region (predetermined range) RA along the straight portions 102a and 103a on the inner side in the width direction. The ridges 112 for heat and the ridges 113 for reinforcement heat transfer are symmetrical positions (main transmissions) on the inner side in the width direction with respect to the boundaries DL1 and DL2 of the heat transfer reinforcement region (predetermined range) RA on the inner side in the width direction. Both ends in the width direction that the operator will grip because they are inclined in opposite directions with respect to the heat transfer ridges 110 and the heat transfer ridges 111 in the heat region CA (CA1, CA2)). The rigidity in the longitudinal direction of the portion is increased, and bending when the operator grips both end portions orthogonal to the longitudinal direction is suppressed.

従って、本実施形態に係る伝熱プレート１０は、組み立てや分解を行うときのハンドリング性を向上させることができるという優れた効果を奏し得る。   Therefore, the heat transfer plate 10 according to the present embodiment can exhibit an excellent effect that handling properties when assembling and disassembling can be improved.

また、本実施形態において、前記伝熱補強領域（所定範囲）ＲＡの補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、前記幅方向に延びる仮想線ＳＬに対して４５°又は略４５°で傾斜しているため、伝熱プレート（金属プレート）１０の伝熱補強領域（所定範囲）ＲＡにおける長手方向及び幅方向の断面係数が等しく又は略等しくなり、ガスケット装着溝１０２，１０３（ストレート部１０２ａ，１０３ａ）と隣接する伝熱補強領域（所定範囲）ＲＡの剛性が高くなる。   In the present embodiment, the reinforcing heat transfer ridges 112 and the reinforced heat transfer ridges 113 in the heat transfer reinforcement region (predetermined range) RA are 45 ° with respect to the virtual line SL extending in the width direction. Alternatively, since it is inclined at approximately 45 °, the section coefficients in the longitudinal direction and the width direction in the heat transfer reinforcement region (predetermined range) RA of the heat transfer plate (metal plate) 10 are equal or substantially equal, and the gasket mounting groove 102, The rigidity of the heat transfer reinforcement region (predetermined range) RA adjacent to 103 (straight portions 102a, 103a) is increased.

また、プレート式熱交換器１は、複数枚の伝熱プレート１０…を積層して流路を形成するに当り、隣り合う伝熱プレート１０の伝熱用凸条１１１…同士を交差衝合させるようにするため、上述の如く、上記構成の伝熱プレート１０を積層したときに伝熱補強領域（所定範囲）ＲＡ内の補強伝熱用凸条１１３…同士が直交して衝合（接触）することになり、ガスケット装着溝１０２，１０３に隣接する前記伝熱補強領域（所定範囲）ＲＡ内で長手方向及び幅方向における補強伝熱用凸条１１３…同士の接触点の間隔が狭くなる結果、ガスケット１１，１２近傍の剛性が高まり、ガスケット１１，１２が伝熱プレート１０，１０に確実に挟まれた状態（高いシール性能を発揮した状態）になる。   Further, when the plate heat exchanger 1 forms a flow path by stacking a plurality of heat transfer plates 10..., The heat transfer ridges 111 of adjacent heat transfer plates 10 cross each other. Therefore, as described above, the reinforcing heat transfer ridges 113 in the heat transfer reinforcement region (predetermined range) RA are orthogonal to each other (contact) when the heat transfer plates 10 having the above-described configuration are stacked. As a result, the distance between the contact points of the reinforcing heat transfer ridges 113 in the longitudinal direction and the width direction becomes narrow in the heat transfer reinforcement region (predetermined range) RA adjacent to the gasket mounting grooves 102 and 103. The rigidity in the vicinity of the gaskets 11 and 12 is increased, and the gaskets 11 and 12 are securely sandwiched between the heat transfer plates 10 and 10 (a state in which high sealing performance is exhibited).

さらに、前記伝熱補強領域（所定範囲）ＲＡの境界ＤＬ１，ＤＬ２は、ストレート部１０２ａ，１０３ａの中心線ＣＬ１から幅方向に前記金属プレートの幅方向の全寸法の５％乃至１０％の距離をおいた位置に設定されているため、長手方向の曲げ剛性を高める領域を最小限に抑えて熱交換媒体Ａ又は被熱交換媒体Ｂを流通させる領域を確保することができる。   Further, the boundaries DL1 and DL2 of the heat transfer reinforcement region (predetermined range) RA have a distance of 5% to 10% of the total dimension in the width direction of the metal plate in the width direction from the center line CL1 of the straight portions 102a and 103a. Since it is set at the position, it is possible to secure a region in which the heat exchange medium A or the heat exchange medium B is circulated while minimizing the region that increases the bending rigidity in the longitudinal direction.

従って、上記構成の伝熱プレート１０…を備えたプレート式熱交換器１は、組み立てや分解がし易くなる。   Therefore, the plate heat exchanger 1 including the heat transfer plates 10 of the above configuration is easy to assemble and disassemble.

なお、本発明は、上記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で適宜変更し得ることは勿論のことである。   In addition, this invention is not limited to the said embodiment, Of course, it can change suitably in the range which does not deviate from the summary of this invention.

上記実施形態において、伝熱補強領域ＲＡ内の補強伝熱用凸条１１３…（補強伝熱用凹条１１２…）の幅方向に延びる仮想線ＳＬに対する角度θ２が主伝熱領域ＣＡ内の伝熱用凸条１１１…（伝熱用凹条１１０…）の幅方向に延びる仮想線ＳＬに対する角度θ１と異なった状態で、伝熱補強領域ＲＡ内の補強伝熱用凸条１１３…（補強伝熱用凹条１１２…）の間隔Ｐ２を主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）内の伝熱用凸条１１１…（伝熱用凹条１１０…）の間隔Ｐ１を同一に設定することで、境界ＤＬ１，ＤＬ２で補強伝熱用凸条１１３…（補強伝熱用凹条１１２…）と伝熱用凸条１１１…（伝熱用凹条１１０…）とが位置ずれしていたが、これに限定されるものではなく、例えば、境界ＤＬ１，ＤＬ２上で補強伝熱用凸条１１３…（補強伝熱用凹条１１２…）と伝熱用凸条１１１…（伝熱用凹条１１０…）とが接続されるようにしてもよい。すなわち、伝熱補強領域ＲＡ内の補強伝熱用凸条１１３…（補強伝熱用凹条１１２…）の幅方向に延びる仮想線ＳＬに対する角度θ２が主伝熱領域ＣＡ内の伝熱用凸条１１１…（伝熱用凹条１１０…）の幅方向に延びる仮想線ＳＬに対する角度θ１と異なった状態で、伝熱補強領域ＲＡ内の補強伝熱用凸条１１３…（補強伝熱用凹条１１２…）の間隔Ｐ２を主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）内の伝熱用凸条１１１…（伝熱用凹条１１０…）の間隔Ｐ１と異ならせてもよい。   In the above embodiment, the angle θ2 with respect to the imaginary line SL extending in the width direction of the reinforcing heat transfer ridges 113 (reinforcing heat transfer ridges 112) in the heat transfer reinforcement region RA is the heat transfer in the main heat transfer region CA. Reinforcing heat transfer protrusions 113 in the heat transfer reinforcement region RA in a state different from the angle θ1 with respect to the virtual line SL extending in the width direction of the heat protrusions 111. By setting the interval P2 of the heat transfer ridges 112 ... (heat transfer ridges 110 ...) in the main heat transfer area CA (CA1, CA2) to be the same, the interval P1 of the heat transfer ridges 112 ...) The reinforcing heat transfer ridges 113 (reinforcing heat transfer ridges 112 ...) and the heat transfer ridges 111 (heat transfer ridges 110 ...) are misaligned at the boundaries DL1 and DL2. For example, the reinforcing heat transfer protrusions 113 on the boundaries DL1 and DL2 (reinforcement heat transfer) Ridges 112 ...) and ridges 111 for heat transfer (concave ridges 110 for heat transfer) may be connected. That is, the angle θ2 with respect to the imaginary line SL extending in the width direction of the reinforcing heat transfer protrusions 113 (reinforcing heat transfer recesses 112) in the heat transfer reinforcement area RA is the heat transfer protrusion in the main heat transfer area CA. Reinforcing heat transfer protrusions 113 in the heat transfer reinforcement region RA (reinforcing heat transfer recesses) in a state different from the angle θ1 with respect to the imaginary line SL extending in the width direction of the stripes 111. )) May be different from the interval P1 between the heat transfer ridges 111 (heat transfer ridges 110) in the main heat transfer area CA (CA1, CA2).

上記実施形態において、主伝熱領域ＣＡを長手方向に延びる中心線ＣＬを基準に幅方向で二つの領域ＣＡ１，ＣＡ２に区画し、長手方向に延びる中心線ＣＬ上で二つの領域ＣＡ１，ＣＡ２の伝熱用凹条１１０…同士及び伝熱用凸条１１１…同士を接続し、主伝熱領域ＣＡ内で屈曲した複数の伝熱用凹条１１０…及び伝熱用凸条１１１…を長手方向に並べてヘリングボーン状に配置したが、これに限定されるものではなく、例えば、図５に示す如く、主伝熱領域ＣＡを長手方向で複数の分割領域ＤＡ…に区画し、各分割領域ＤＡ…内に長手方向で屈曲した伝熱用凹条１１０…及び伝熱用凸条１１１…を幅方向に並べてヘリングボーン状に配置してもよい。   In the above embodiment, the main heat transfer area CA is divided into two areas CA1 and CA2 in the width direction on the basis of the center line CL extending in the longitudinal direction, and the two areas CA1 and CA2 on the center line CL extending in the longitudinal direction. The heat transfer recesses 110... And the heat transfer protrusions 111... Are connected to each other, and the plurality of heat transfer recesses 110 and the heat transfer protrusions 111 bent in the main heat transfer area CA are arranged in the longitudinal direction. However, the present invention is not limited to this. For example, as shown in FIG. 5, the main heat transfer area CA is divided into a plurality of divided areas DA in the longitudinal direction, and each divided area DA is divided. ... And the heat transfer ridges 110 bent in the longitudinal direction and the heat transfer ridges 111 may be arranged in a herringbone shape in the width direction.

具体的には、各分割領域ＤＡを当該分割領域ＤＡの幅方向に延びる中心線ＣＬ２を基準にして長手方向で二つの領域ＤＡ１，ＤＡ２に区画し、各分割領域ＤＡにおいて、長手方向の一方の領域ＤＡ１に形成される伝熱用凹条１１０…及び伝熱用凸条１１１…を中心線ＣＬ２から長手方向の一端側に向けて傾斜して形成し、長手方向の他方の領域ＤＡ２に形成される伝熱用凹条１１０…及び伝熱用凸条１１１…を幅方向に延びる中心線ＣＬ２から長手方向の他端側に向けて傾斜して形成し、各分割領域ＤＡ…で一方の領域ＤＡ１内の伝熱用凹条１１０…及び伝熱用凸条１１１…と他方の領域ＤＡ２内の伝熱用凹条１１０…及び伝熱用凸条１１１…とを幅方向に延びる中心線ＣＬ２上で接続し、各分割領域ＤＡ…の伝熱用凹条１１０…及び伝熱用凸条１１１…のそれぞれを幅方向に延びる中心線ＣＬ２上で屈曲した状態で幅方向に並べてヘリングボーン状に配置するようにしてもよい。また、この場合、隣接する分割領域ＤＡ…の伝熱用凹条１１０…同士及び伝熱用凸条１１１…同士を分割領域ＤＡの境界上で接続してもよい。   Specifically, each divided area DA is divided into two areas DA1 and DA2 in the longitudinal direction with reference to a center line CL2 extending in the width direction of the divided area DA. The heat transfer ridges 110 and the heat transfer ridges 111 formed in the region DA1 are formed to be inclined from the center line CL2 toward one end side in the longitudinal direction, and are formed in the other region DA2 in the longitudinal direction. The heat transfer ridges 110 and the heat transfer ridges 111 are formed to be inclined from the center line CL2 extending in the width direction toward the other end side in the longitudinal direction, and one region DA1 is formed in each divided region DA. On the center line CL2 extending in the width direction, the heat transfer recess 110 ... and the heat transfer protrusion 111 ... and the heat transfer recess 110 ... and the heat transfer protrusion 111 in the other region DA2 are arranged. Connected, heat transfer recess 110 in each divided area DA ... and heat transfer Article 111 ... respectively arranged in the width direction in the bent state on the center line CL2 of the extending in the width direction of the may be arranged in a herringbone pattern. In this case, the heat transfer ridges 110 of the adjacent divided regions DA and the heat transfer ridges 111 may be connected on the boundary of the divided region DA.

そして、この場合においても、主伝熱領域ＣＡ（ＣＡ１，ＣＡ２）内の伝熱用凹条１１０…及び伝熱用凸条１１１…は、幅方向に延びる仮想線ＳＬに対して所定角度θ１で傾斜した状態になるため、主伝熱領域ＣＡの両側にある各伝熱補強領域ＲＡ内の補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、幅方向内側にある当該伝熱補強領域（所定範囲）ＲＡの境界ＤＬ１，ＤＬ２を基準とする幅方向内側の対称位置（主伝熱領域ＣＡの一方の領域ＣＡ１又は他方の領域ＣＡ２）にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して逆向きに傾斜させればよい。なお、上述の如く、主伝熱領域ＣＡを長手方向に分割した場合、伝熱補強領域ＲＡにおいても長手方向に分割された状態になるが、伝熱補強領域ＲＡの分割された領域のそれぞれにある補強伝熱用凹条１１２…及び補強伝熱用凸条１１３…は、幅方向に隣り合う分割領域ＤＡの伝熱用凸条１１１…及び伝熱用凹条１１０…を対象にして傾斜方向が設定される。   Even in this case, the heat transfer recesses 110 and the heat transfer protrusions 111 in the main heat transfer area CA (CA1, CA2) are at a predetermined angle θ1 with respect to the virtual line SL extending in the width direction. Because of the inclined state, the reinforcing heat transfer concave stripes 112 and the reinforcing heat transfer convex stripes 113 in the respective heat transfer reinforcing areas RA on both sides of the main heat transfer area CA are in the width direction inside. Heat transfer grooves 110 at symmetrical positions (one area CA1 of the main heat transfer area CA or the other area CA2) on the inner side in the width direction with respect to the boundaries DL1 and DL2 of the heat reinforcement area (predetermined range) RA and What is necessary is just to make it incline in the reverse direction with respect to the convexities 111 for heat transfer. As described above, when the main heat transfer area CA is divided in the longitudinal direction, the heat transfer reinforcement area RA is also divided in the longitudinal direction, but in each of the divided areas of the heat transfer reinforcement area RA. A certain reinforcing heat transfer groove 112 and the reinforcing heat transfer protrusion 113 are inclined with respect to the heat transfer protrusion 111 and the heat transfer groove 110 in the divided area DA adjacent in the width direction. Is set.

また、上記実施形態において、伝熱補強領域ＲＡと主伝熱領域ＣＡとの境界ＤＬ１，ＤＬ２に何ら設けなかったが、これに限定されるものではなく、例えば、図６に示す如く、伝熱補強領域ＲＡと主伝熱領域ＣＡとの境界ＤＬ１，ＤＬ２上に、長手方向に延びる補強溝２００を長手方向に断続的に形成してもよい。この場合、補強溝２００は、ガスケット装着溝１０２，１０３と同様に、伝熱プレート１０の両面に設けることが好ましい。すなわち、補強溝２００は、一方の面側の伝熱用凸条１１１…の頂点と他方の面側の伝熱用凸条１１１…の頂点との中間位置に底部が位置するように形成することが好ましい。このようにすれば、補強溝２００を画定する一対の壁部が長手方向に形成されるため、長手方向の曲げ剛性をさらに高めることができ、作業者が幅方向の両端部を把持したときの湾曲をより確実に抑制することができる。また、補強溝２００で補強すれば熱交換媒体Ａ又は被熱交換媒体Ｂの流れを阻害することもない。   In the above embodiment, the boundary DL1 and DL2 between the heat transfer reinforcement area RA and the main heat transfer area CA are not provided at all. However, the present invention is not limited to this. For example, as shown in FIG. A reinforcing groove 200 extending in the longitudinal direction may be intermittently formed in the longitudinal direction on the boundaries DL1 and DL2 between the reinforcing area RA and the main heat transfer area CA. In this case, it is preferable to provide the reinforcing groove 200 on both surfaces of the heat transfer plate 10 similarly to the gasket mounting grooves 102 and 103. That is, the reinforcing groove 200 is formed so that the bottom is positioned at an intermediate position between the apex of the heat transfer ridges 111 on one side and the apex of the heat transfer ridges 111 on the other side. Is preferred. In this way, since the pair of wall portions that define the reinforcing groove 200 are formed in the longitudinal direction, the bending rigidity in the longitudinal direction can be further increased, and when the operator grips both end portions in the width direction. Bending can be more reliably suppressed. Further, if the reinforcing groove 200 is used for reinforcement, the flow of the heat exchange medium A or the heat exchange medium B is not hindered.

また、上記実施形態において、主伝熱領域ＣＡに補強構造を設けなかったが、例えば、主伝熱領域ＣＡ内の伝熱用凸条１１１…及び伝熱用凹条１１０…を部分的に横切るように補強用の溝を設けてもよい。この場合においても、補強用の溝は、一方の面側の伝熱用凸条１１１…の頂点と他方の面側の伝熱用凸条１１１…の頂点との中間位置に底部が位置するように形成することが好ましい。このようにすれば、熱交換媒体Ａ又は被熱交換媒体Ｂの流れを阻害することなく熱交換媒体Ａ又は被熱交換媒体Ｂの流体圧で主伝熱領域ＣＡ内の伝熱用凹条１１０…及び伝熱用凸条１１１…の並ぶ方向に伝熱プレート１０が延びることを抑制することができる。かかる構成は、図６に示す補強溝２００と組み合わせればより効果的である。   Moreover, in the said embodiment, although the reinforcement structure was not provided in the main heat-transfer area | region CA, for example, the heat-transfer protrusion 111 ... in the main heat-transfer area | region CA ... and the heat-transfer groove 110 ... partially cross. In this way, a reinforcing groove may be provided. Also in this case, the reinforcing groove has a bottom located at an intermediate position between the apex of the heat transfer ridges 111 on one side and the apex of the heat transfer ridges 111 on the other side. It is preferable to form. In this way, the heat transfer groove 110 in the main heat transfer area CA is generated by the fluid pressure of the heat exchange medium A or the heat exchange medium B without hindering the flow of the heat exchange medium A or the heat exchange medium B. It is possible to suppress the heat transfer plate 10 from extending in the direction in which the ... and the heat transfer ridges 111 are arranged. Such a configuration is more effective when combined with the reinforcing groove 200 shown in FIG.

上記実施形態において、伝熱補強領域ＲＡ内の補強伝熱用凸条１１３…及び補強伝熱用凹条１１２…を幅方向に延びる仮想線ＳＬに対して４５°の角度で傾斜させたが、これに限定されるものではなく、補強伝熱用凸条１１３…及び補強伝熱用凹条１１２…は、境界ＤＬ１，ＤＬ２を基準とした主伝熱領域ＣＡの対称位置にある伝熱用凹条１１０…及び伝熱用凸条１１１…に対して交差方向に延びるように形成されればよい。但し、上述の如く、長手方向及び幅方向の強度のバランスをとるには上記実施形態と同様に補強伝熱用凸条１１３…及び補強伝熱用凹条１１２…を幅方向に延びる仮想線ＳＬに対して４５°の角度で傾斜させることが好ましことは言うまでもない。   In the above embodiment, the reinforcing heat transfer ridges 113 and the reinforcing heat transfer ridges 112 in the heat transfer reinforcement region RA are inclined at an angle of 45 ° with respect to the virtual line SL extending in the width direction. The ridges 113 for reinforcing heat transfer and the ridges 112 for reinforcing heat transfer are not limited to the above, and the recesses for heat transfer at the symmetrical positions of the main heat transfer area CA with respect to the boundaries DL1 and DL2. What is necessary is just to be formed so that it may extend in the crossing direction with respect to the stripe | line 110 ... and the heat-projection protruding item | line 111 .... However, as described above, in order to balance the strength in the longitudinal direction and the width direction, the imaginary line SL extending in the width direction extends in the reinforcing heat transfer ridges 113 and the reinforced heat transfer ridges 112 in the same manner as in the above embodiment. It goes without saying that it is preferable to incline at an angle of 45 °.

１…プレート式熱交換器、１０…伝熱プレート、１１…第一ガスケット（ガスケット）、１２…第二ガスケット（ガスケット）、１３…第三ガスケット（ガスケット）、１４…第四ガスケット（ガスケット）、１５，１６…フレームプレート、１７…締付手段、１００ａ，１００ｂ…第一開口、１０１ａ，１０１ｂ…第二開口、１０２…第一ガスケット装着溝（ガスケット装着溝）、１０３…第二ガスケット装着溝（ガスケット装着溝）、１０４…第三ガスケット装着溝（ガスケット装着溝）、１０５…第四ガスケット装着溝（ガスケット装着溝）、１０２ａ，１０３ａ…ストレート部、１１０…凹条、１１１…凸条、１１２…補強凹条（凹条）、１１３…補強凸条（凸条）、１６０…接続ノズル、１６１…切欠部、２００…補強溝、Ａ…熱交換媒体、Ｂ…被熱交換媒体、ＣＡ…主伝熱領域、ＣＡ１，ＣＡ２…領域、ＣＬ，ＣＬ１，ＣＬ２…中心線、ＲＡ…伝熱補強領域（所定範囲）、ＤＡ…分割領域、ＤＡ１，ＤＡ２…領域、ＤＬ１，ＤＬ２…境界、Ｌ…レール、Ｒ１…第一流路、Ｒ２…第二流路、Ｒ３…熱交換媒体流入路、Ｒ４…熱交換媒体流出路、Ｒ５…被熱交換媒体流入路、Ｒ６…被熱交換媒体流出路、ＳＬ…仮想線、Ｘ１…距離、Ｘ，Ｙ…寸法 DESCRIPTION OF SYMBOLS 1 ... Plate type heat exchanger, 10 ... Heat transfer plate, 11 ... 1st gasket (gasket), 12 ... 2nd gasket (gasket), 13 ... 3rd gasket (gasket), 14 ... 4th gasket (gasket), DESCRIPTION OF SYMBOLS 15,16 ... Frame plate, 17 ... Tightening means, 100a, 100b ... 1st opening, 101a, 101b ... 2nd opening, 102 ... 1st gasket mounting groove (gasket mounting groove), 103 ... 2nd gasket mounting groove ( Gasket mounting groove), 104 ... Third gasket mounting groove (gasket mounting groove), 105 ... Fourth gasket mounting groove (gasket mounting groove), 102a, 103a ... Straight portion, 110 ... Concave, 111 ... Convex, 112 ... Reinforcing ridges (concave ridges), 113 ... Reinforcing ridges (ridges), 160 ... Connection nozzles, 161 ... Notches, 200 ... Reinforcing grooves, A ... Heat Exchange medium, B ... Heat exchange medium, CA ... Main heat transfer area, CA1, CA2 ... area, CL, CL1, CL2 ... Center line, RA ... Heat transfer reinforcement area (predetermined range), DA ... Divided area, DA1, DA2 ... region, DL1, DL2 ... boundary, L ... rail, R1 ... first flow path, R2 ... second flow path, R3 ... heat exchange medium inflow path, R4 ... heat exchange medium outflow path, R5 ... heat exchange medium inflow Road, R6 ... Heat exchange medium outflow passage, SL ... Virtual line, X1 ... Distance, X, Y ... Dimensions

Claims (5)

プレス成形によって略長方形状の金属プレートの両面に複数の凹条及び凸条が長手方向と直交する幅方向に延びる仮想線に対して傾斜するように形成されるとともに前記凹条及び凸条を含む領域に流路を形成すべくガスケットが配置される環状のガスケット装着溝が形成され、該ガスケット装着溝が金属プレートの長手方向と直交する幅方向の両端縁に沿った一対のストレート部を有するプレート式熱交換器用の伝熱プレートにおいて、幅方向内側で各ストレート部に沿った所定範囲にある凹条及び凸条は、幅方向内側にある前記所定範囲の境界を基準とする幅方向内側の対称位置にある凹条及び凸条に対して逆向きに傾斜していることを特徴とするプレート式熱交換器用の伝熱プレート。   A plurality of recesses and protrusions are formed on both sides of a substantially rectangular metal plate by press molding so as to be inclined with respect to an imaginary line extending in the width direction orthogonal to the longitudinal direction, and include the recesses and protrusions. An annular gasket mounting groove in which a gasket is disposed to form a flow path in the region is formed, and the gasket mounting groove has a pair of straight portions along both edges in the width direction perpendicular to the longitudinal direction of the metal plate In the heat transfer plate for a heat exchanger, the recesses and protrusions in the predetermined range along each straight portion on the inner side in the width direction are symmetrical on the inner side in the width direction with reference to the boundary of the predetermined range on the inner side in the width direction. A heat transfer plate for a plate heat exchanger, wherein the plate is inclined in a reverse direction with respect to the concave stripes and the convex stripes in position. 前記所定範囲の凹条及び凸条は、前記幅方向に延びる仮想線に対して４５°で傾斜している請求項１に記載のプレート式熱交換器用の伝熱プレート。   2. The heat transfer plate for a plate heat exchanger according to claim 1, wherein the recesses and protrusions in the predetermined range are inclined at 45 ° with respect to an imaginary line extending in the width direction. 前記所定範囲の境界は、ストレート部の中心線から幅方向に前記金属プレートの幅方向の全寸法の５％乃至１０％の距離をおいた位置に設定されている請求項１又は２に記載のプレート式熱交換器用の伝熱プレート。   The boundary of the said predetermined range is set to the position which set 5 to 10% of distance of the whole dimension of the width direction of the said metal plate in the width direction from the centerline of the straight part. Heat transfer plate for plate heat exchanger. 前記所定範囲の境界上に、長手方向に延びる補強溝が長手方向に断続的に形成されている請求項１乃至３の何れか１項に記載のプレート式熱交換器用の伝熱プレート。   The heat transfer plate for a plate heat exchanger according to any one of claims 1 to 3, wherein reinforcing grooves extending in the longitudinal direction are formed intermittently in the longitudinal direction on the boundary of the predetermined range. 長方形状に形成されて長手方向の一端側及び他端側に流路形成用開口が少なくとも二つ形成されるとともに両面に複数の凹条及び凸条が長手方向と直交する幅方向に延びる仮想線に対して傾斜するように形成され、且つ前記凹条及び凸条を含む領域に流路を形成すべくガスケットが配置される環状のガスケット装着溝が長手方向と直交する方向の両端縁に沿った一対のストレート部を有して形成された複数の伝熱プレートが積層され、隣り合う伝熱プレートがガスケット装着溝に配置されたガスケットを挟み込むことで、各伝熱プレートを境にして熱交換媒体を流通させる第一流路と被熱交換媒体を流通させる第二流路とが交互に形成されたプレート式熱交換器において、前記伝熱プレートが請求項１乃至４の何れか１項に記載のプレート式熱交換器用の伝熱プレートで構成されていることを特徴とするプレート式熱交換器。   An imaginary line which is formed in a rectangular shape and has at least two flow path forming openings on one end side and the other end side in the longitudinal direction, and a plurality of recesses and protrusions on both sides extend in the width direction perpendicular to the longitudinal direction. An annular gasket mounting groove that is formed so as to be inclined with respect to the groove and in which a gasket is disposed to form a flow path in the region including the concave stripe and the convex stripe is along both end edges in a direction perpendicular to the longitudinal direction. A plurality of heat transfer plates formed with a pair of straight portions are stacked, and adjacent heat transfer plates sandwich a gasket disposed in the gasket mounting groove so that each heat transfer plate serves as a boundary. The plate-type heat exchanger in which the first flow path for circulating the heat exchanger and the second flow path for circulating the heat exchange medium are alternately formed, and the heat transfer plate according to any one of claims 1 to 4. Plate type Plate heat exchanger, characterized in that it is composed of heat transfer plates of the exchanger.
JP2010274652A 2010-12-09 2010-12-09 Heat transfer plate for plate type heat exchanger, and plate type heat exchanger Pending JP2012122688A (en)

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