JP2019100686A - Plate type heat exchanger - Google Patents

Plate type heat exchanger Download PDF

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JP2019100686A
JP2019100686A JP2017235879A JP2017235879A JP2019100686A JP 2019100686 A JP2019100686 A JP 2019100686A JP 2017235879 A JP2017235879 A JP 2017235879A JP 2017235879 A JP2017235879 A JP 2017235879A JP 2019100686 A JP2019100686 A JP 2019100686A
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branch
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heat transfer
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田中　信雄
Nobuo Tanaka
信雄 田中
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Hisaka Works Ltd
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Abstract

To provide a plate-type heat exchanger capable of uniformly supplying a first fluid as an evaporation or condensation object to a plurality of first flow channels, and improving heat exchanging performance.SOLUTION: A plate type heat exchanger includes a plurality of flow channel formation members connected in a first direction at positions corresponding to through holes of heat transfer plates to form a first fluid supply passage, each flow channel formation member has a through hole for forming a first fluid supply, the first flow supply passage includes an upstream system and a downstream system, the upstream system includes an introduction port extended in the first direction, a branch portion disposed at an intermediate portion in the first direction, a pair of branch flow channels extended in the first direction respectively in a region on one side and a region on the other side with respect to a branch portion in the first direction as a boundary, and the downstream system includes an opened portion directly or indirectly communicated to a tip of a branch flow channel of the upstream system.SELECTED DRAWING: Figure 2

Description

本発明は、蒸発器や凝縮器として用いられるプレート式熱交換器に関する。   The present invention relates to a plate type heat exchanger used as an evaporator or a condenser.

従来から、プレート式熱交換器は、流体を蒸発させる蒸発器や、流体を凝縮させる凝縮器として多用されている（例えば、特許文献１参照）。   BACKGROUND ART Conventionally, plate heat exchangers are widely used as an evaporator for evaporating a fluid and a condenser for condensing a fluid (see, for example, Patent Document 1).

プレート式熱交換器は、図１７乃至図１９に示す如く、複数の伝熱プレート１０１…を備える。この種のプレート式熱交換器１００では、複数の伝熱プレート１０１…が第一方向に重ね合わされることによって、蒸発又は凝縮の対象となる第一流体Ａを流通させる第一流路Ｒａと、第一流体Ａを蒸発又は凝縮させる第二流体Ｂ（第一流体Ａとの熱交換の対象となる第二流体Ｂ）を流通させる第二流路Ｒｂと、第一流路Ｒａのみに連通し、第一流路Ｒａに第一流体Ａを流入させる第一流体供給路Ｒａ１と、第一流路Ｒａのみに連通し、第一流路Ｒａから第一流体Ａを流出させる第一流体排出路Ｒａ２と、第二流路Ｒｂのみに連通し、第二流路Ｒｂに第二流体Ｂを流入させる第二流体供給路Ｒｂ１と、第二流路Ｒｂのみに連通し、第二流路Ｒｂから第二流体Ｂを流出させる第二流体排出路Ｒｂ２とが形成される。   The plate type heat exchanger includes a plurality of heat transfer plates 101, as shown in FIGS. In the plate type heat exchanger 100 of this type, a plurality of heat transfer plates 101 are stacked in a first direction to form a first flow path Ra for flowing a first fluid A to be evaporated or condensed, A second channel Rb for circulating a second fluid B (a second fluid B to be subjected to heat exchange with the first fluid A) that evaporates or condenses the first fluid A, and only in communication with the first channel Ra; A first fluid supply passage Ra1 that allows the first fluid A to flow into the first passage Ra, and a first fluid discharge passage Ra2 that communicates with only the first passage Ra and that allows the first fluid A to flow out of the first passage Ra The second fluid supply passage Rb1 is in communication with only the flow passage Rb and allows the second fluid B to flow into the second flow passage Rb, and is in communication with only the second flow passage Rb, and the second fluid B is communicated from the second flow passage Rb. A second fluid discharge passage Rb2 to be discharged is formed.

より具体的に説明すると、複数の伝熱プレート１０１…のそれぞれは、第一方向に第一面と該第一面の反対側の第二面とを有する。伝熱プレート１０１の第一面及び第二面のそれぞれには、複数の凹条及び凸条（採番しない）が形成されている。   More specifically, each of the plurality of heat transfer plates 101 has a first surface in the first direction and a second surface opposite to the first surface. On each of the first surface and the second surface of the heat transfer plate 101, a plurality of concave streaks and convex streaks (not numbered) are formed.

複数の伝熱プレート１０１のそれぞれは、第一方向に貫通した第一孔１０２であって、第一方向と直交する第二方向の一端側の領域のうち、第一方向及び第二方向と直交する第三方向の一端部に配置された第一孔１０２と、第一方向に貫通した第二孔１０３であって、第二方向の他端側の領域のうちの第三方向の一端部に配置された第二孔１０３と、第一方向に貫通した第三孔１０４であって、第二方向の他端側の領域のうちの第三方向の他端部に配置された第三孔１０４と、第一方向に貫通した第四孔１０５であって、第二方向の一端側の領域のうちの第三方向の他端部に配置された第四孔１０５とを有する（図１５参照）。   Each of the plurality of heat transfer plates 101 is a first hole 102 penetrating in a first direction, which is orthogonal to the first direction and the second direction in a region on one end side of the second direction orthogonal to the first direction First hole 102 disposed at one end in the third direction and the second hole 103 penetrating in the first direction at one end in the third direction of the region on the other end side in the second direction The second hole 103 disposed, and the third hole 104 penetrating in the first direction, and the third hole 104 disposed at the other end in the third direction of the region on the other end side of the second direction And the fourth hole 105 penetrating in the first direction, the fourth hole 105 being disposed at the other end of the third direction in the region on the one end side of the second direction (see FIG. 15) .

これに伴い、複数の伝熱プレート１０１が重ね合わされることで、隣り合う伝熱プレート１０１の凸条同士が交差衝合し、隣り合う伝熱プレート１０１間に第一流路Ｒａ又は第二流路Ｒｂが形成される。この種のプレート式熱交換器１００において、第一流路Ｒａ及び第二流路Ｒｂは、伝熱プレート１０１を境にして交互に形成される。   Along with this, by overlapping the plurality of heat transfer plates 101, the ridges of the adjacent heat transfer plates 101 cross-abut, and the first flow passage Ra or the second flow passage is formed between the adjacent heat transfer plates 101. Rb is formed. In the plate type heat exchanger 100 of this type, the first flow passage Ra and the second flow passage Rb are alternately formed with the heat transfer plate 101 as a boundary.

さらに、複数の伝熱プレート１０１の第一孔１０２が第一方向に連なって第一流体供給路Ｒａ１が形成されるとともに、複数の伝熱プレート１０１の第二孔１０３が第一方向に連なって第一流体排出路Ｒａ２が形成される。また、複数の伝熱プレート１０１の第三孔１０４が第一方向に連なって第二流体供給路Ｒｂ１が形成されるとともに、複数の伝熱プレート１０１の第四孔１０５が第一方向に連なって第二流体排出路Ｒｂ２が形成される。   Furthermore, while the first holes 102 of the plurality of heat transfer plates 101 are continuous in the first direction to form the first fluid supply path Ra1, the second holes 103 of the plurality of heat transfer plates 101 are continuous in the first direction The first fluid discharge path Ra2 is formed. Further, while the third holes 104 of the plurality of heat transfer plates 101 are continuous in the first direction to form the second fluid supply passage Rb1, the fourth holes 105 of the plurality of heat transfer plates 101 are continuous in the first direction A second fluid discharge passage Rb2 is formed.

これに伴い、この種のプレート式熱交換器１００において、第一流体供給路Ｒａ１に供給された第一流体Ａは、第一流路Ｒａを通って第一流体排出路Ｒａ２に流出するとともに、第二流体供給路Ｒｂ１に供給された第二流体Ｂは、第二流路Ｒｂを通って第二流体排出路Ｒｂ２に流出する。これにより、第一流路Ｒａと第二流路Ｒｂとを仕切る伝熱プレート１０１を介して第一流体Ａと第二流体Ｂとが熱交換する。   Along with this, in the plate type heat exchanger 100 of this type, the first fluid A supplied to the first fluid supply passage Ra1 flows out to the first fluid discharge passage Ra2 through the first passage Ra, and The second fluid B supplied to the second fluid supply passage Rb1 flows out to the second fluid discharge passage Rb2 through the second passage Rb. Thereby, the first fluid A and the second fluid B exchange heat via the heat transfer plate 101 that divides the first flow passage Ra and the second flow passage Rb.

ところで、この種のプレート式熱交換器１００では、重ね合わされる伝熱プレート１０１…の数が多くなると、熱交換に寄与する伝熱面積が広くなり、熱交換性能が高くなるとされている。   By the way, in this type of plate type heat exchanger 100, when the number of heat transfer plates 101 to be stacked increases, the heat transfer area contributing to heat exchange becomes wider, and the heat exchange performance becomes higher.

しかしながら、伝熱プレート１０１…の数が多くなると、第一流体供給路Ｒａ１、第一流体排出路Ｒａ２、第二流体供給路Ｒｂ１、及び第二流体排出路Ｒｂ２のそれぞれの第一方向の長さが、重ね合わされる伝熱プレート１０１…の数に応じて長くなる。   However, when the number of heat transfer plates 101... Increases, the length in the first direction of each of the first fluid supply passage Ra1, the first fluid discharge passage Ra2, the second fluid supply passage Rb1, and the second fluid discharge passage Rb2 However, the length of the heat transfer plates 101...

すなわち、複数の伝熱プレート１０１…の第一孔１０２が連なることによって第一流体供給路Ｒａ１が形成されるとともに、第二孔１０３が連なることによって第一流体排出路Ｒａ２が形成され、複数の伝熱プレート１０１…の第三孔１０４が連なることによって第二流体供給路Ｒｂ１が形成されるとともに、第四孔１０５が連なることによって第二流体排出路Ｒｂ２が形成されるため、第一流体供給路Ｒａ１、第一流体排出路Ｒａ２、第二流体供給路Ｒｂ１、及び第二流体排出路Ｒｂ２のそれぞれの流路長は、重ね合わされる伝熱プレート１０１…の数が多くなれば、その数に応じて長くなる。   That is, the first holes 102 of the plurality of heat transfer plates 101 are connected to form the first fluid supply path Ra1, and the second holes 103 are connected to form the first fluid discharge path Ra2. The third holes 104 of the heat transfer plates 101 are connected to form the second fluid supply passage Rb1, and the fourth holes 105 are connected to form the second fluid discharge passage Rb2. As for the flow path length of each of the path Ra1, the first fluid discharge path Ra2, the second fluid supply path Rb1, and the second fluid discharge path Rb2, if the number of heat transfer plates 101. Depending on the length.

その結果、重ね合わされる伝熱プレート１０１…の数が多くなると、第一流路Ｒａに第一流体Ａを流入させる第一流体供給路Ｒａ１での第一流体Ａの流通抵抗が大きくなり、第一流体供給路Ｒａ１において第一流体Ａが流通し難くなる。そのため、この種のプレート式熱交換器１では、第一流体供給路Ｒａ１の入口側における第一流路Ｒａへの第一流体Ａの流入量と、第一流体供給路Ｒａ１の奥側における第一流路Ｒａへの第一流体Ａの流入量とが不均一になる。   As a result, when the number of heat transfer plates 101 to be superimposed increases, the flow resistance of the first fluid A in the first fluid supply passage Ra1 that causes the first fluid A to flow into the first flow passage Ra increases, and the first It becomes difficult for the first fluid A to flow in the fluid supply path Ra1. Therefore, in the plate type heat exchanger 1 of this type, the inflow of the first fluid A to the first flow passage Ra at the inlet side of the first fluid supply passage Ra1 and the first rank at the back side of the first fluid supply passage Ra1. The inflow of the first fluid A to the passage Ra becomes uneven.

すなわち、この種のプレート式熱交換器１００は、第一方向に並ぶ複数の第一流路Ｒａ…に対する第一流体Ａの分配ムラが生じる。その結果、この種のプレート式熱交換器１００では、伝熱プレート１０１…の数を多くしても（第一流路Ｒａの数を多くしても）、熱交換性能（蒸発性能或いは凝縮性能）を高めるのに限界がある。   That is, in this type of plate type heat exchanger 100, distribution unevenness of the first fluid A to the plurality of first flow paths Ra arranged in the first direction occurs. As a result, in this type of plate type heat exchanger 100, even if the number of heat transfer plates 101 is increased (even if the number of first flow paths Ra is increased), the heat exchange performance (evaporation performance or condensation performance) There is a limit to raising

特開平１１−２８７５７２号公報Unexamined-Japanese-Patent No. 11-287572

そこで、本発明は、複数の第一流路に対して蒸発又は凝縮の対象となる第一流体を均等に供給でき、熱交換性能を高めることのできるプレート式熱交換器を提供することを課題とする。   Therefore, it is an object of the present invention to provide a plate type heat exchanger which can uniformly supply the first fluid to be evaporated or condensed to the plurality of first flow paths and can improve the heat exchange performance. Do.

本発明に係るプレート式熱交換器は、第一方向に貫通した貫通孔を互いに対応した位置に有する複数の伝熱プレートであって、第一方向に重ね合わされ、第一流体を流通させる第一流路と第二流体を流通させる第二流路とを第一方向で交互に形成した複数の伝熱プレートと、伝熱プレートの貫通孔と対応する位置で第一方向に連なり、第一流体を第一流路のみに供給する第一流体供給路を形成する複数の流路形成部材とを備え、複数の流路形成部材のそれぞれは、第一方向に貫通した貫通孔であって、相互に連続して第一流体供給路を形成する少なくとも一つの貫通孔を有し、第一流体供給路は、第一流体の供給源に直接的又は間接的に接続される上流系統と、上流系統と流体的に接続される下流系統とを含み、上流系統は、第一方向に延びる導入部であって、第一流体の供給源に繋がる配管に直接的又は間接的に連通する導入部と、複数の伝熱プレートのうちの第一方向の中間部にある伝熱プレート間と対応した位置に配置された分岐部であって、第一方向と直交する方向における導入部と異なる位置で第一方向に貫通するとともに、導入部と連通した分岐部と、分岐部と連通する基端と該基端の反対側の先端とを有する一対の分岐流路であって、第一方向における分岐部を境にした一方側の領域及び他方側の領域のそれぞれで第一方向に延びる一対の分岐流路を含み、下流系統は、上流系統の分岐流路の先端と直接的又は間接的に連通する開放部であって、第一方向の複数箇所で対応する第一流路に向かって開放した複数の開放部を含むことを特徴とする。   The plate type heat exchanger according to the present invention is a plurality of heat transfer plates having through holes penetrating in a first direction at mutually corresponding positions, which are overlapped in the first direction to allow the first fluid to flow A plurality of heat transfer plates formed alternately in the first direction with the passage and the second flow path for flowing the second fluid, and the first flow in the first direction at positions corresponding to the through holes of the heat transfer plate And a plurality of flow path forming members that form a first fluid supply path that supplies only to the first flow path, wherein each of the plurality of flow path forming members is a through hole that penetrates in a first direction and is mutually continuous And at least one through hole that forms a first fluid supply passage, the first fluid supply passage being an upstream system connected directly or indirectly to the first fluid supply source, an upstream system, and a fluid And the downstream system extending in the first direction. An introduction unit that directly or indirectly communicates with the pipe connected to the first fluid supply source, and the heat transfer plates in the middle of the plurality of heat transfer plates in the first direction A branch portion disposed at the same position, which penetrates in the first direction at a position different from the introduction portion in the direction orthogonal to the first direction, and a branch portion communicating with the introduction portion and a proximal end communicating with the branch portion And a distal end opposite to the proximal end, the pair extending in the first direction in each of the one side region and the other side region bordering the branch portion in the first direction A downstream channel is an open portion that directly or indirectly communicates with the tip of the upstream channel's bifurcated channel, and is opened toward the corresponding primary channel at multiple locations in the first direction. It is characterized by including a plurality of openings.

本発明の一態様として、複数の流路形成部材のそれぞれは、第二流路を挟んで第一方向に並ぶ第一流路に対応して配置され、隣り合う伝熱プレートの貫通孔の周囲に挟まれていてもよい。   As one aspect of the present invention, each of the plurality of flow path forming members is disposed corresponding to the first flow path aligned in the first direction across the second flow path, and around the through holes of the adjacent heat transfer plates It may be pinched.

本発明の他態様として、下流系統は、上流系統の分岐流路の先端と直接的又は間接的に連通する最下流分岐部であって、第一方向と直交する方向における導入部及び分岐流路と異なる位置で第一方向に貫通した最下流分岐部と、第一方向における最下流分岐部を境にした一方側の領域及び他方側の領域のそれぞれで第一方向に延びる一対の最下流分岐流路とを含み、最下流分岐流路のそれぞれは、最下流分岐部と連通する基端と、該基端の反対側の先端であって、開放部と連通する先端とを有してもよい。   As another aspect of the present invention, the downstream system is a most downstream branch unit in direct or indirect communication with the tip of the branch channel of the upstream system, and the introduction section and the branch channel in the direction orthogonal to the first direction. And a pair of the most downstream branches extending in the first direction in each of the one side region and the other side region bordering the most downstream branch portion in the first direction at the most downstream branch portion penetrating in the first direction at different positions Each of the most downstream branch flow channels includes a proximal end in communication with the most downstream branch, and a distal end opposite to the proximal end in communication with the opening; Good.

本発明によれば、複数の第一流路に対して蒸発又は凝縮の対象となる第一流体を均等に供給でき、熱交換性能を高めることができるという優れた効果を奏し得る。   ADVANTAGE OF THE INVENTION According to this invention, the 1st fluid used as the object of evaporation or condensation can be equally supplied with respect to several 1st flow paths, and the outstanding effect that heat exchange performance can be improved can be show | played.

図１は、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である。FIG. 1 is an overall perspective view of a plate-type heat exchanger according to an embodiment of the present invention. 図２は、同実施形態に係るプレート式熱交換器の概略分解斜視図である。FIG. 2 is a schematic exploded perspective view of the plate type heat exchanger according to the same embodiment. 図３は、同実施形態に係るプレート式熱交換器の二種類の伝熱プレートのうちの一方の伝熱プレートを第一面側から見た概略図である。FIG. 3 is a schematic view of one of the heat transfer plates of the two types of heat transfer plates of the plate type heat exchanger according to the embodiment as viewed from the first surface side. 図４は、同実施形態に係るプレート式熱交換器の二種類の伝熱プレートのうちの一方の伝熱プレートを第二面側から見た概略図である。FIG. 4 is a schematic view of one of the heat transfer plates of the two types of heat transfer plates of the plate type heat exchanger according to the embodiment as viewed from the second surface side. 図５は、同実施形態に係るプレート式熱交換器の二種類の伝熱プレートのうちの他方の伝熱プレートを第一面側から見た概略図である。FIG. 5 is a schematic view of the other heat transfer plate of the two types of heat transfer plates of the plate type heat exchanger according to the same embodiment as viewed from the first surface side. 図６は、同実施形態に係るプレート式熱交換器の二種類の伝熱プレートのうちの他方の伝熱プレートを第二面側から見た概略図である。FIG. 6 is a schematic view of the other heat transfer plate of the two types of heat transfer plates of the plate type heat exchanger according to the same embodiment as viewed from the second surface side. 図７は、同実施形態に係るプレート式熱交換器が備える複数の流路形成部材を第一方向に配列した状態の斜視図である。FIG. 7 is a perspective view of a state in which a plurality of flow path forming members provided in the plate type heat exchanger according to the embodiment are arranged in a first direction. 図８は、同実施形態に係るプレート式熱交換器が備える複数の流路形成部材の共通構成のみを図示した外観正面図である。FIG. 8 is an external front view illustrating only a common configuration of a plurality of flow passage forming members provided in the plate type heat exchanger according to the embodiment. 図９は、同実施形態に係るプレート式熱交換器が備える複数の流路形成部材の共通構成のみを図示した外観側面図である。FIG. 9 is an external side view illustrating only a common configuration of a plurality of flow passage forming members provided in the plate type heat exchanger according to the embodiment. 図１０は、図１のＸ−Ｘ断面図であって、第一流体の流れを付加した図である。FIG. 10 is a cross-sectional view taken along the line X-X of FIG. 1 to which a first fluid flow is added. 図１１は、図１のＸＩ−ＸＩ断面図であって、第二流体の流れを付加した図である。FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 1 and is a view to which a second fluid flow is added. 図１２は、同実施形態に係るプレート式熱交換器が備える複数の流路形成部材を第一方向に配列した状態の斜視図であって、第一流体の流れを付加した図である。FIG. 12 is a perspective view of a state in which a plurality of flow path forming members provided in the plate type heat exchanger according to the embodiment are arranged in a first direction, and is a view to which a flow of a first fluid is added. 図１３は、本発明の他実施形態に係るプレート式熱交換器が備える複数の流路形成部材を第一方向に配列した状態の斜視図である。FIG. 13 is a perspective view of a state in which a plurality of flow path forming members provided in a plate type heat exchanger according to another embodiment of the present invention are arranged in a first direction. 図１４は、他実施形態に係るプレート式熱交換器が備える複数の流路形成部材の共通構成のみを図示した外観正面図である。FIG. 14: is the external appearance front view which illustrated only the common structure of the some flow-path formation member with which the plate type heat exchanger which concerns on other embodiment is equipped. 図１５は、他実施形態に係るプレート式熱交換器の断面図であって、第一流体の流れを付加した図である。FIG. 15 is a cross-sectional view of a plate type heat exchanger according to another embodiment, to which a first fluid flow is added. 図１６は、本発明の別の実施形態に係るプレート式熱交換器の断面図であって、第一流体の流れを付加した図である。FIG. 16 is a cross-sectional view of a plate heat exchanger according to another embodiment of the present invention, to which a first fluid flow is added. 図１７は、従来のプレート式熱交換器の概略分解斜視図である。FIG. 17 is a schematic exploded perspective view of a conventional plate type heat exchanger. 図１８は、従来のプレート式熱交換器の断面図であって、第一流体の流れを付加した図である。FIG. 18 is a cross-sectional view of a conventional plate type heat exchanger, to which a first fluid flow is added. 図１９は、従来のプレート式熱交換器の断面図であって、第二流体の流れを付加した図である。FIG. 19 is a cross-sectional view of a conventional plate heat exchanger, to which a second fluid flow is added.

以下、本発明の一実施形態について、添付図面を参照しつつ説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

本実施形態に係るプレート式熱交換器は、図１及び図２に示す如く、第一方向に重ね合わされた複数の伝熱プレート２，３を備える。本実施形態に係るプレート式熱交換器１は、図２に示す如く、複数の伝熱プレート２，３に加え、隣り合う伝熱プレート２，３間に配置される複数の流路形成部材４を備える。また、プレート式熱交換器１は、第一方向に重ね合わされた複数の伝熱プレート２，３を挟む一対のエンドプレート５，６を備える。   The plate type heat exchanger according to the present embodiment, as shown in FIGS. 1 and 2, includes a plurality of heat transfer plates 2 and 3 stacked in a first direction. The plate type heat exchanger 1 according to the present embodiment is, as shown in FIG. 2, in addition to the plurality of heat transfer plates 2 and 3, a plurality of flow path forming members 4 disposed between adjacent heat transfer plates 2 and 3. Equipped with The plate type heat exchanger 1 further includes a pair of end plates 5 and 6 sandwiching the plurality of heat transfer plates 2 and 3 stacked in the first direction.

複数の伝熱プレート２，３のそれぞれは、図３乃至図６に示す如く、第一方向に第一面Ｓａと該第一面Ｓａの反対側の第二面Ｓｂとを有するプレート本体部２０，３０を有する。本実施形態において、伝熱プレート２，３は、プレート本体部２０，３０の外周に接続され且つプレート本体部２０，３０に対して面交差する方向に延出した環状嵌合部２１，３１を備える。   Each of the plurality of heat transfer plates 2 and 3 has a plate body 20 having a first surface Sa and a second surface Sb opposite to the first surface Sa in a first direction, as shown in FIGS. 3 to 6. , 30. In the present embodiment, the heat transfer plates 2 and 3 have annular fitting portions 21 and 31 connected to the outer periphery of the plate body portions 20 and 30 and extending in a direction intersecting the plate body portions 20 and 30. Prepare.

プレート本体部２０，３０の第一面Ｓａ及び第二面Ｓｂのそれぞれには、複数の凹条２００，３００及び凸条２０１，３０１が形成されている。なお、図３乃至図６において、凹条２００，３００を破線で表現し、凸条２０１，３０１を破線間にある直線で表現している。   On each of the first surface Sa and the second surface Sb of the plate body portions 20 and 30, a plurality of concave streaks 200 and 300 and convex streaks 201 and 301 are formed. In FIG. 3 to FIG. 6, the concave streaks 200 and 300 are represented by broken lines, and the convex streaks 201 and 301 are represented by straight lines between the broken lines.

複数の凹条２００，３００及び凸条２０１，３０１のそれぞれは、第一方向と直交する第二方向に延びる仮想線（図示しない）に対して傾斜する方向に延びている。複数の凹条２００，３００及び凸条２０１，３０１は、自身の延びる方向と直交する方向に交互に配置されている。伝熱プレート２，３は、金属プレートをプレス成型したもので、第一面Ｓａの凹条２００，３００は、第二面Ｓｂの凸条２０１，３０１と表裏の関係にあり、第一面Ｓａの凸条２０１，３０１は、第二面Ｓｂの凹条２００，３００と表裏の関係にある。   Each of the plurality of concave streaks 200 and 300 and the convex streaks 201 and 301 extends in a direction inclined with respect to an imaginary line (not shown) extending in a second direction orthogonal to the first direction. The plurality of concave streaks 200 and 300 and the convex streaks 201 and 301 are alternately arranged in a direction perpendicular to the direction in which the concave streaks 200 and 300 and the convex streaks 201 and 301 extend. The heat transfer plates 2 and 3 are formed by press-forming a metal plate, and the concave streaks 200 and 300 of the first surface Sa have a front and back relationship with the convex streaks 201 and 301 of the second surface Sb. The convex streaks 201 and 301 are in the relation of the concave streaks 200 and 300 of the second surface Sb to the front and back.

伝熱プレート２，３のそれぞれのプレート本体部２０，３０は、第一方向から見て矩形状に形成され、四隅のそれぞれに貫通孔２０２，２０３，２０４，２０５，３０２，３０３，３０４，３０５を有する。   The plate body portions 20 and 30 of the heat transfer plates 2 and 3 are formed in a rectangular shape as viewed from the first direction, and the through holes 202, 203, 204, 205, 302, 303, 304, 305 are formed at the four corners. Have.

より具体的には、プレート本体部２０，３０は、貫通孔として、第二方向の一端側の領域のうち、第一方向及び第二方向と直交する第三方向の一端部に配置された第一孔２０２，３０２と、第二方向の他端側の領域のうちの第三方向の一端部に配置された第二孔２０３，３０３と、第二方向の他端側の領域のうちの第三方向の他端部に配置された第三孔２０４，３０４と、第二方向の一端側の領域のうちの第三方向の他端部に配置された第四孔２０５，３０５とを有する。   More specifically, the plate body portions 20 and 30 are disposed as through holes in one end portion in the third direction orthogonal to the first direction and the second direction in the region on the one end side in the second direction. The first holes 202 and 302, the second holes 203 and 303 disposed at one end in the third direction of the other end side of the second direction, and the second of the regions on the other end side of the second direction It has third holes 204 and 304 arranged at the other end in three directions, and fourth holes 205 and 305 arranged at the other end in the third direction of the region on one end side in the second direction.

本実施形態において、第一孔２０２，３０２、第二孔２０３，３０３、第三孔２０４，３０４、及び第四孔２０５，３０５のそれぞれは、丸孔である。本実施形態において、第二孔２０３，３０３、第三孔２０４，３０４、及び第四孔２０５，３０５の孔径は、同径である。これに対し、第一孔２０２，３０２の孔径は、第二孔２０３，３０３、第三孔２０４，３０４、及び第四孔２０５，３０５の孔径よりも大径である。   In the present embodiment, each of the first holes 202 and 302, the second holes 203 and 303, the third holes 204 and 304, and the fourth holes 205 and 305 is a round hole. In the present embodiment, the hole diameters of the second holes 203 and 303, the third holes 204 and 304, and the fourth holes 205 and 305 are equal. On the other hand, the hole diameter of the first holes 202 and 302 is larger than the hole diameter of the second holes 203 and 303, the third holes 204 and 304, and the fourth holes 205 and 305.

本実施形態において、第一孔２０２，３０２の周囲、及び第二孔２０３，３０３の周囲は、第二面Ｓｂ側に膨出している。すなわち、第一孔２０２，３０２の周囲、及び第二孔２０３，３０３の周囲は、第一面Ｓａ側で窪んでいる。これに対し、第三孔２０４，３０４の周囲及び第四孔２０５，３０５の周囲は、第一面Ｓａ側に膨出している。すなわち、第三孔２０４，３０４の周囲及び第四孔２０５，３０５の周囲は、第二面Ｓｂ側で窪んでいる。   In the present embodiment, the peripheries of the first holes 202 and 302 and the peripheries of the second holes 203 and 303 bulge toward the second surface Sb. That is, the peripheries of the first holes 202 and 302 and the peripheries of the second holes 203 and 303 are recessed on the first surface Sa side. On the other hand, the peripheries of the third holes 204 and 304 and the peripheries of the fourth holes 205 and 305 bulge toward the first surface Sa. That is, the peripheries of the third holes 204 and 304 and the peripheries of the fourth holes 205 and 305 are recessed on the second surface Sb side.

本実施形態において、複数の伝熱プレート２，３には、二種類の伝熱プレート２，３が含まれる。二種類の伝熱プレート２，３は、プレート本体部２０，３０の凹条２００，３００及び凸条２０１，３０１の傾斜方向を異にするとともに、環状嵌合部２１，３１の延出する方向を異にし、それ以外の構成（プレート本体部２０，３０の第一方向から見た輪郭の形状及びサイズ、第一方向から見た第一孔２０２，３０２、第二孔２０３，３０３、第三孔２０４，３０４、及び第四孔２０５，３０５の配置及びサイズ）は共通している。   In the present embodiment, the plurality of heat transfer plates 2 and 3 include two types of heat transfer plates 2 and 3. The two types of heat transfer plates 2 and 3 have different directions of inclination of the concave strips 200 and 300 and the convex strips 201 and 301 of the plate body portions 20 and 30, and the extending directions of the annular fitting portions 21 and 31. Other than that (the shape and size of the outline of the plate main body 20, 30 as viewed from the first direction, the first holes 202, 302 as viewed from the first direction, the second holes 203 The arrangement and size of the holes 204 and 304 and the fourth holes 205 and 305 are common.

具体的には、二種類の伝熱プレート２，３のうちの一方の伝熱プレート２において、凹条２００及び凸条２０１は、第三方向の中間から第三方向の両端に向けて先下りに傾斜するとともに、環状嵌合部２１がプレート本体部２０の第二面Ｓｂ側に延出している（図３及び図４参照）。これに対し、二種類の伝熱プレート２，３のうちの他方の伝熱プレート３において、凹条３００及び凸条３０１は、第三方向の両端から第三方向の中間に向けて先下りに傾斜するとともに、環状嵌合部３１がプレート本体部３０の第一面Ｓａ側に延出している（図５及び図６参照）。   Specifically, in one of the heat transfer plates 2 of the two types of heat transfer plates 2 and 3, the concave streaks 200 and the convex streaks 201 go down from the middle in the third direction to both ends in the third direction. The annular fitting portion 21 extends on the second surface Sb side of the plate main body portion 20 (see FIGS. 3 and 4). On the other hand, in the other heat transfer plate 3 of the two types of heat transfer plates 2 and 3, the concaves 300 and the convexs 301 go down from both ends in the third direction toward the middle in the third direction. While it inclines, the annular fitting part 31 is extended to the 1st surface Sa side of the plate main-body part 30 (refer FIG.5 and FIG.6).

これにより、本実施形態に係るプレート式熱交換器１において、隣り合う伝熱プレート２，３が第一面Ｓａ同士を対向させるとともに第二面Ｓｂ同士対向させるように、二種類の伝熱プレート２，３が第一方向において交互に配置されることで、隣り合う伝熱プレート２，３の環状嵌合部２１，３１同士が嵌合するのに併せ、隣り合う伝熱プレート２，３の第一面Ｓａの凸条２０１，３０１同士が交差衝合するとともに、隣り合う伝熱プレート２，３の第二面Ｓｂの凸条２０１，３０１同士が交差衝合するようになっている。   Thereby, in the plate type heat exchanger 1 according to the present embodiment, two kinds of heat transfer plates such that the adjacent heat transfer plates 2 and 3 cause the first surfaces Sa to face each other and cause the second surfaces Sb to face each other. By alternately arranging 2 and 3 in the first direction, the annular fitting portions 21 and 31 of the heat transfer plates 2 and 3 adjacent to each other fit together, and the heat transfer plates 2 and 3 adjacent to each other The ridges 201 and 301 of the first surface Sa cross-abut, and the ridges 201 and 301 of the second surface Sb of the heat transfer plates 2 and 3 adjacent to each other cross-abut.

図７に示す如く、複数の流路形成部材４のそれぞれは、第一方向に貫通した少なくとも一つの貫通孔４２を有する。   As shown in FIG. 7, each of the plurality of flow path forming members 4 has at least one through hole 42 penetrating in the first direction.

複数の流路形成部材４…のそれぞれの外形（第一方向から見た輪郭及び第一方向と直交する方向から見た輪郭）は共通している。すなわち、複数の流路形成部材４において、貫通孔の数、配置以外の構成は共通している。   The outer shapes of the plurality of flow path forming members 4 (a contour viewed from the first direction and a contour viewed from the direction orthogonal to the first direction) are common. That is, in the plurality of flow passage forming members 4, the configuration other than the number and arrangement of the through holes is common.

より具体的に説明する。複数の流路形成部材４…のそれぞれは、図８及び図９に示す如く、第一方向に第一面（採番しない）と該第一面の反対側の第二面（採番しない）とを有するプレート状の本体部４０と、本体部４０の第一面及び第二面の少なくとも何れか一方の面に接続された嵌合部４１とを有する。   It will be described more specifically. As shown in FIGS. 8 and 9, each of the plurality of flow path forming members 4 is a first surface (not numbered) in a first direction and a second surface (not numbered) opposite to the first surface. And a fitting portion 41 connected to at least one of the first surface and the second surface of the main body portion 40.

本体部４０の第一方向における厚みＴ１は、隣り合う伝熱プレート２，３の間隔と対応している（図９参照）。本実施形態において、図８に示す如く、本体部４０の外周４００は、円弧部４００ａと、円弧部４００ａの両端を繋ぐ直線部４００ｂとを含む。本体部４０の円弧部４００ａの半径ｒ１は、第一孔２０２，３０２の半径よりも大きく設定される。本実施形態の本体部４０では、円弧部４００ａの中心ＣＰ１から直線部４００ｂまでの最短の直線距離Ｌ１は、第一孔２０２，３０２の半径よりも短く設定される。   The thickness T1 in the first direction of the main body 40 corresponds to the distance between the adjacent heat transfer plates 2 and 3 (see FIG. 9). In the present embodiment, as shown in FIG. 8, the outer periphery 400 of the main body 40 includes an arc portion 400 a and a straight portion 400 b connecting both ends of the arc portion 400 a. The radius r1 of the arc portion 400a of the main body 40 is set larger than the radius of the first holes 202 and 302. In the main body portion 40 of the present embodiment, the shortest linear distance L1 from the center CP1 of the arc portion 400a to the linear portion 400b is set shorter than the radius of the first holes 202 and 302.

これに伴い、本実施形態では、第一孔２０２，３０２の孔中心と本体部４０の円弧部４００ａの中心ＣＰ１とを一致させた状態で、本体部４０の第一面及び第二面のそれぞれの周縁部（円弧部４００ａに沿った部分）が、第一方向から見て伝熱プレート２，３の第一孔２０２，３０２の周囲と重なるようになっている。   Accordingly, in the present embodiment, each of the first surface and the second surface of the main body 40 in a state in which the hole centers of the first holes 202 and 302 and the center CP1 of the arc portion 400a of the main body 40 are aligned. The peripheral edge portion (portion along the arc portion 400a) of the heat transfer plate overlaps with the periphery of the first holes 202 and 302 of the heat transfer plates 2 and 3 when viewed from the first direction.

嵌合部４１は、伝熱プレート２，３の第一孔２０２，３０２に嵌合可能に形成される。より具体的に説明すると、本実施形態において、嵌合部４１の外周は、円弧部４１０ａと、円弧部４１０ａの両端を繋ぐ直線部４１０ｂとを含む。嵌合部４１の円弧部４１０ａの中心ＣＰ２は、本体部４０の円弧部４１０ａの中心ＣＰ１と一致している。すなわち、本体部４０と嵌合部４１とは、同心である。   The fitting portion 41 is formed to be fittable to the first holes 202 and 302 of the heat transfer plates 2 and 3. More specifically, in the present embodiment, the outer periphery of the fitting portion 41 includes an arc portion 410 a and a straight portion 410 b connecting both ends of the arc portion 410 a. The center CP2 of the arc portion 410a of the fitting portion 41 coincides with the center CP1 of the arc portion 410a of the main body portion 40. That is, the main body portion 40 and the fitting portion 41 are concentric.

嵌合部４１の円弧部４１０ａの半径ｒ２は、第一孔２０２，３０２の半径と同一又は第一孔２０２，３０２の半径よりも僅かに小さい。嵌合部４１において、円弧部４１０ａの中心ＣＰ２から直線部４１０ｂまでの最短の直線距離Ｌ２は、第一孔２０２，３０２の半径よりも短く設定される。本実施形態において、嵌合部４１の円弧部４１０ａの中心ＣＰ２から直線部４１０ｂまでの最短の直線距離Ｌ２は、本体部４０の円弧部４００ａの中心ＣＰ１から該本体部４０の直線部４００ｂまでの最短の直線距離Ｌ１と同一である。すなわち、本体部４０の直線部４００ｂと嵌合部４１の直線部４１０ｂとは、第一方向において連続している。   The radius r2 of the arc portion 410a of the fitting portion 41 is the same as the radius of the first holes 202, 302 or slightly smaller than the radius of the first holes 202, 302. In the fitting portion 41, the shortest linear distance L2 from the center CP2 of the arc portion 410a to the linear portion 410b is set shorter than the radius of the first holes 202 and 302. In the present embodiment, the shortest linear distance L2 from the center CP2 of the arc portion 410a of the fitting portion 41 to the straight portion 410b is the distance from the center CP1 of the arc portion 400a of the main portion 40 to the straight portion 400b of the main portion 40. It is the same as the shortest linear distance L1. That is, the linear portion 400 b of the main body portion 40 and the linear portion 410 b of the fitting portion 41 are continuous in the first direction.

本実施形態の流路形成部材４において、図９に示す如く、嵌合部４１は、本体部４０の第一面のみに接続されている。これに伴い、嵌合部４１の第一方向の厚みＴ２は、伝熱プレート２，３を構成する金属プレート（プレス成型される金属プレート）の二枚の合計厚み（第一方向に重なる伝熱プレート２，３の第一孔２０２，３０２の周囲の合計厚み）と一致又は略一致している。   In the flow path forming member 4 of the present embodiment, as shown in FIG. 9, the fitting portion 41 is connected only to the first surface of the main body portion 40. Along with this, the thickness T2 of the fitting portion 41 in the first direction is the total thickness of the two metal plates (metal plates to be press-formed) constituting the heat transfer plates 2 and 3 (heat transfer overlapping in the first direction) The total thickness of the peripheries of the first holes 202 and 302 of the plates 2 and 3 match or substantially match.

複数の流路形成部材４…の共通構成は、以上の通りであり、図７に示す如く、第一方向に整列した状態で配置される。これを前提に、複数の流路形成部材４…のそれぞれは、自身の配置位置に応じ、第一方向に貫通した少なくとも一つ貫通孔４２を有する。本実施形態に係るプレート式熱交換器１は、第一方向に整列した複数の流路形成部材４の第一方向の一方の端にある流路形成部材４側から他方の端にある流路形成部材４側に向けて第一流体を供給することを前提としている。これに伴い、本実施形態において、複数の流路形成部材４…には、第一方向の他方の端側に配置される流路形成部材４として、貫通孔を有していない流路形成部材４が含まれる。   The common configuration of the plurality of flow path forming members 4... Is as described above, and as shown in FIG. 7, they are arranged in the first direction. On the premise of this, each of the plurality of flow path forming members 4 ... has at least one through hole 42 penetrating in the first direction according to the arrangement position of itself. The plate type heat exchanger 1 according to the present embodiment is a flow path from the side of the flow path forming member 4 at one end of the plurality of flow path forming members 4 aligned in the first direction to the other end. It is premised that the first fluid is supplied toward the forming member 4 side. Along with this, in the present embodiment, a plurality of flow passage forming members 4... Are flow passage forming members having no through holes as the flow passage forming member 4 disposed on the other end side in the first direction. 4 are included.

ここで具体的に説明すると、複数の流路形成部材４…は、第一方向に重ね合わされた伝熱プレート２，３の第一孔２０２，３０２の配置に対応するように、第一方向に連なって配置される（図２参照）。すなわち、複数の流路形成部材４…は、プレート式熱交換器１の内部において、第一方向に整列して配置される。   More specifically, the plurality of flow path forming members 4 are arranged in the first direction so as to correspond to the arrangement of the first holes 202 and 302 of the heat transfer plates 2 and 3 overlapped in the first direction. They are arranged in series (see FIG. 2). That is, the plurality of flow path forming members 4... Are arranged in the first direction in the interior of the plate type heat exchanger 1.

これを前提に、第一方向に整列する複数の流路形成部材４…が配置される部材配置領域Ｓのうち、第一方向の一方側の半分又は略半分の領域Ｓ１に配置される複数の流路形成部材４…は、貫通孔４２として、互いに対応した位置に配置された第一貫通孔４２０を有する。すなわち、部材配置領域Ｓの第一方向の中間又は略中間を境界Ｅ１とした第一領域Ｓ１及び第二領域Ｓ２のうち、第一方向の一方の端を含む第一領域Ｓ１内にある複数の流路形成部材４…のそれぞれには、第一貫通孔４２０が設けられる。本実施形態において、第一貫通孔４２０の中心は、本体部４０の円弧部４００ａ及び嵌合部４１の円弧部４１０ａの中心ＣＰ１，ＣＰ２と一致している。   On the premise of this, among the member disposition areas S in which the plurality of flow path forming members 4 aligned in the first direction are disposed, the plurality disposed in the half or substantially half area S1 of one side in the first direction The flow path forming members 4 have first through holes 420 arranged at positions corresponding to each other as the through holes 42. That is, among the first area S1 and the second area S2 in which the middle or substantially middle of the first direction of the member disposition area S is the boundary E1, a plurality of the first areas S1 including one end in the first direction A first through hole 420 is provided in each of the flow path forming members 4. In the present embodiment, the center of the first through hole 420 coincides with the centers CP1 and CP2 of the arc portion 400a of the main body 40 and the arc portion 410a of the fitting portion 41.

複数の流路形成部材４…のうち、第一領域Ｓ１と第二領域Ｓ２との境界Ｅ１上にある流路形成部材４は、貫通孔４２として、第一貫通孔４２０に対して第一方向と直交する方向にずれた位置で第一方向に貫通した第二貫通孔４２１と、第一方向に貫通した第三貫通孔４２２であって、第一貫通孔４２０と第二貫通孔４２１とを連通させた第三貫通孔４２２とを有する。すなわち、第一方向の中間部にある単一の流路形成部材（以下、上流側基準部材という）４は、貫通孔４２として、第一貫通孔４２０、第二貫通孔４２１及び第三貫通孔４２２を有する。   Among the plurality of flow path forming members 4 ..., the flow path forming member 4 on the boundary E1 between the first area S1 and the second area S2 serves as the through hole 42 in the first direction with respect to the first through hole 420 A second through hole 421 penetrating in the first direction at a position shifted in a direction orthogonal to the second direction, and a third through hole 422 penetrating in the first direction, the first through hole 420 and the second through hole 421 And a third through hole 422 communicating with each other. That is, the single flow passage forming member (hereinafter referred to as the upstream reference member) 4 located at the middle portion in the first direction serves as the first through hole 420, the second through hole 421 and the third through hole as the through holes 42. It has 422.

上流側基準部材４に対して第一方向の両側のそれぞれにある少なくとも一つの流路形成部材４は、上流側基準部材４の第二貫通孔４２１と対応した位置で第一方向に貫通した第四貫通孔４２３を有する。   The at least one flow passage forming member 4 on each side of the upstream reference member 4 in the first direction penetrates in the first direction at a position corresponding to the second through hole 421 of the upstream reference member 4 It has four through holes 423.

本実施形態において、部材配置領域Ｓの第一方向の中間を境界Ｅ１とした第一領域Ｓ１及び第二領域Ｓ２のそれぞれにある複数の流路形成部材４…のうち、上流側基準部材４と隣り合う流路形成部材４を含む複数の流路形成部材４…であって、部材配置領域Ｓの第一方向の中間（境界Ｅ１）から第一領域Ｓ１の第一方向の中間部にまで並ぶ複数の流路形成部材４…、及び、部材配置領域Ｓの第一方向の中間（境界Ｅ１）から第二領域Ｓ２の第一方向の中間部にまで並ぶ複数の流路形成部材４…のそれぞれが、第四貫通孔４２３を有する。   In the present embodiment, the upstream side reference member 4 and the plurality of flow passage forming members 4 in each of the first region S1 and the second region S2 with the middle in the first direction of the member disposition region S as the boundary E1 A plurality of flow path forming members 4 including the adjacent flow path forming members 4 are arranged from the middle (boundary E1) in the first direction of the member arrangement area S to the middle part in the first direction of the first area S1. A plurality of flow path forming members 4 ... and a plurality of flow path forming members 4 lined up in the first direction from the middle (boundary E1) in the first direction of the member disposition area S to the middle portion in the first direction of the second area S2. Has a fourth through hole 423.

すなわち、部材配置領域Ｓの第一方向の中間を境界Ｅ１とした第一領域Ｓ１及び第二領域Ｓ２のそれぞれにおいて、当該領域Ｓ１，Ｓ２の第一方向の中間を境界Ｅ２とした第一領域Ｓ３及び第二領域Ｓ４のうち、部材配置領域Ｓの第一方向の中間にある境界Ｅ１と隣接する第一領域Ｓ３にある複数の流路形成部材４…が第四貫通孔４２３を有する。   That is, in each of the first area S1 and the second area S2 with the middle in the first direction of the member arrangement area S as the boundary E1, the first area S3 with the middle in the first direction of the areas S1 and S2 as the boundary E2. Among the second regions S4, the plurality of flow passage forming members 4 in the first region S3 adjacent to the boundary E1 in the middle in the first direction of the member disposition region S have the fourth through holes 423.

そして、部材配置領域Ｓの第一方向の中間を境界Ｅ１とする第一領域Ｓ１及び第二領域Ｓ２のそれぞれにおいて、該第一領域Ｓ１及び第二領域Ｓ２の第一方向の中間にある境界Ｅ２に位置する流路形成部材４は、貫通孔４２として、第一貫通孔４２０及び第四貫通孔４２３のそれぞれに対して第一方向と直交する方向にずれた位置で第一方向に貫通した第五貫通孔４２４と、第一方向に貫通した長穴状の第六貫通孔４２５であって、第四貫通孔４２３と第五貫通孔４２４とを連通させた第六貫通孔４２５を有する。   Then, in each of the first area S1 and the second area S2 having the middle in the first direction of the member disposition area S as the boundary E1, the boundary E2 in the middle of the first direction of the first area S1 and the second area S2 The flow passage forming member 4 positioned in the first through hole 42 penetrates in the first direction at a position deviated from the first through hole 420 and the fourth through hole 423 in the direction orthogonal to the first direction. The fifth through hole 424 is a sixth through hole 425 in the form of a long hole penetrating in the first direction, and has a sixth through hole 425 in which the fourth through hole 423 and the fifth through hole 424 are communicated.

すなわち、部材配置領域Ｓを二分した第一領域Ｓ１及び第二領域Ｓ２のそれぞれの第一方向の中間部にある単一の流路形成部材（以下、下流側基準部材という）４は、貫通孔４２として、第四貫通孔４２３、第五貫通孔４２４及び第六貫通孔４２５を有する。なお、本実施形態においては、部材配置領域Ｓを二分した第一領域Ｓ１及び第二領域Ｓ２のうちの一方の領域（第一領域Ｓ１）にある下流側基準部材４は、貫通孔４２として、第四貫通孔４２３、第五貫通孔４２４及び第六貫通孔４２５の他に、第一貫通孔４２０も有する。   That is, a single flow passage forming member (hereinafter, referred to as a downstream reference member) 4 located in the middle of each of the first region S1 and the second region S2 obtained by dividing the member arrangement region S into two through holes As the reference numeral 42, the fourth through hole 423, the fifth through hole 424, and the sixth through hole 425 are provided. In the present embodiment, the downstream reference member 4 in one of the first area S1 and the second area S2 obtained by dividing the member arrangement area S into two (first area S1) serves as the through hole 42. In addition to the fourth through hole 423, the fifth through hole 424, and the sixth through hole 425, a first through hole 420 is also included.

そして、下流側基準部材４（境界Ｅ２）を境にした第一領域Ｓ３及び第二領域Ｓ４のそれぞれにおいて、下流側基準部材４に対して第一方向の両側のそれぞれにある少なくとも一つの流路形成部材４は、下流側基準部材４の第五貫通孔４２４と対応した位置で第一方向に貫通した第七貫通孔４２６を有する。   And, in each of the first area S3 and the second area S4 bordering the downstream reference member 4 (boundary E2), at least one flow path on each side of the downstream reference member 4 in the first direction The forming member 4 has a seventh through hole 426 penetrating in the first direction at a position corresponding to the fifth through hole 424 of the downstream side reference member 4.

本実施形態において、下流側基準部材４と隣り合う流路形成部材４を含む複数の流路形成部材４…であって、下流側基準部材４（境界Ｅ２）から該下流側基準部材４を挟む第一領域Ｓ３及び第二領域Ｓ４の第一方向の中間部にまで並ぶ複数の流路形成部材４が、第七貫通孔４２６を有する。   In the present embodiment, the plurality of flow path forming members 4 including the flow path forming member 4 adjacent to the downstream side reference member 4 sandwich the downstream side reference member 4 from the downstream side reference member 4 (boundary E2) The plurality of flow passage forming members 4 arranged in the first direction intermediate portion of the first region S3 and the second region S4 have seventh through holes 426.

そして、下流側基準部材４を挟む第一領域Ｓ３及び第二領域Ｓ４の第一方向の中間部に位置する流路形成部材４は、貫通孔４２として、第一方向に貫通した第八貫通孔４２７であって、第七貫通孔４２６と連通するとともに当該流路形成部材４の外周上で開放した第八貫通孔４２７を有する。本実施形態において、第八貫通孔４２７は、本体部４０及び嵌合部４１の外周４００，４１０を構成する直線部４００ｂ，４１０ｂ上で開放している。   Then, the flow passage forming member 4 positioned at the middle portion in the first direction of the first region S3 and the second region S4 sandwiching the downstream side reference member 4 is an eighth through hole penetrating in the first direction as the through hole 42 427, and has an eighth through hole 427 in communication with the seventh through hole 426 and open on the outer periphery of the flow path forming member 4; In the present embodiment, the eighth through hole 427 is open on the straight portions 400 b and 410 b that constitute the outer circumferences 400 and 410 of the main body 40 and the fitting portion 41.

図２に戻り、一対のエンドプレート５，６のそれぞれは、伝熱プレート２，３のプレート本体部２０，３０と重なるプレート状のエンドプレート本体５０，６０と、エンドプレート本体５０，６０の外周全周から延出した環状嵌合部５１，６１であって、伝熱プレート２，３の環状嵌合部２１，３１と嵌合可能な環状嵌合部５１，６１とを有する。   Returning to FIG. 2, each of the pair of end plates 5 and 6 has the plate-like end plate bodies 50 and 60 overlapping the plate body portions 20 and 30 of the heat transfer plates 2 and 3 and the outer peripheries of the end plate bodies 50 and 60 The annular fitting portions 51 and 61 extend from the entire circumference, and have annular fitting portions 51 and 61 that can be engaged with the annular fitting portions 21 and 31 of the heat transfer plates 2 and 3.

一対のエンドプレート５，６のうちの一方のエンドプレート５において、エンドプレート本体５０は、伝熱プレート２，３の第二孔２０３，３０３、第三孔２０４，３０４、第四孔２０５，３０５）と対応する貫通孔（図示しない）を有する。   In the end plate 5 of one of the pair of end plates 5 and 6, the end plate main body 50 includes the second holes 203 and 303, the third holes 204 and 304, and the fourth holes 205 and 305 of the heat transfer plates 2 and 3. And corresponding through holes (not shown).

また、一方のエンドプレート５において、エンドプレート本体５０は、第一孔２０２，３０２と対応して配置される流路形成部材４の第一貫通孔４２０の内孔と対応する貫通孔（図示しない）を有する。これに伴い、一方のエンドプレート５は、エンドプレート本体５０，６０の各貫通孔に対応して設けられた四つのノズル５２，５３，５４，５５であって、自身の内孔を対応する貫通孔に連通させた状態で該エンドプレート本体５０に接続された筒状のノズル５２，５３，５４，５５を有する。   Further, in one end plate 5, the end plate main body 50 is a through hole (not shown) corresponding to the inner hole of the first through hole 420 of the flow path forming member 4 disposed corresponding to the first holes 202 and 302. ). Along with this, one end plate 5 is four nozzles 52, 53, 54, and 55 provided corresponding to the respective through holes of the end plate main bodies 50 and 60, and the corresponding inner holes of the end plate It has cylindrical nozzles 52, 53, 54, 55 connected to the end plate main body 50 in a state of being communicated with the holes.

本実施形態に係るプレート式熱交換器１は、図１０に示す如く、複数の伝熱プレート２，３が第一方向に重ね合わされる。これに併せ、複数の流路形成部材４のそれぞれの配列を守った状態で、隣り合う伝熱プレート２，３の第一面Ｓａ，Ｓａ間に本体部４０が配置されるとともに、嵌合部４１が第一孔２０２，３０２に嵌合される。   In the plate type heat exchanger 1 according to the present embodiment, as shown in FIG. 10, a plurality of heat transfer plates 2 and 3 are overlapped in the first direction. In addition to this, the main body portion 40 is disposed between the first surfaces Sa, Sa of the heat transfer plates 2, 3 adjacent to each other in a state in which the respective arrays of the plurality of flow path forming members 4 are protected. 41 are fitted into the first holes 202, 302.

この状態において、複数の流路形成部材４のそれぞれは、自身の嵌合部４１を隣り合う流路形成部材４に密接させる。なお、本実施形態において、本体部４０及び嵌合部４１の外周４００，４１０に含まれる直線部４００ｂ，４１０ｂが伝熱プレート２，３の内側（第二方向における中間側）に向くように配置される。そして、一対のエンドプレート５，６が複数の伝熱プレート２，３を挟んだ状態で配置され、各部材２，３，４の密接する部分が液密に接合される。   In this state, each of the plurality of flow path forming members 4 brings its own fitting portion 41 into close contact with the adjacent flow path forming members 4. In the present embodiment, the linear portions 400b and 410b included in the outer peripheries 400 and 410 of the main body portion 40 and the fitting portion 41 are disposed so as to face the inside (intermediate side in the second direction) of the heat transfer plates 2 and 3. Be done. And a pair of end plates 5 and 6 is arranged in the state which pinched a plurality of heat transfer plates 2 and 3, and the intimate portion of each member 2, 3 and 4 is joined in a fluid tight manner.

本実施形態においては、隣り合う伝熱プレート２，３の凸条２０１，３０１の交差衝合した交差点、互い嵌合した環状嵌合部２１，３１同士、第一孔２０２，３０２の周囲同士、第二孔２０３，３０３の周囲同士、第三孔２０４，３０４の周囲同士、第四孔２０５，３０５の周囲同士等がロウ付けされる。また、隣り合う流路形成部材４，４同士がロウ付けされるとともに、流路形成部材４の本体部４０の外周縁部と第一孔２０２，３０２の周囲とがロウ付けされる。   In the present embodiment, the intersection where the ridges 201 and 301 of the heat transfer plates 2 and 3 adjacent to each other cross each other, the annular fitting parts 21 and 31 fitted to each other, and the circumferences of the first holes 202 and 302, The peripheries of the second holes 203 and 303, the peripheries of the third holes 204 and 304, the peripheries of the fourth holes 205 and 305, and the like are brazed. Further, the flow path forming members 4 and 4 adjacent to each other are brazed, and the outer peripheral edge portion of the main body 40 of the flow path forming member 4 and the periphery of the first holes 202 and 302 are brazed.

これにより、本実施形態に係るプレート式熱交換器１において、図１０及び図１１に示す如く、伝熱プレート２，３を境にして、第一流体Ａを第二方向に流通させる第一流路Ｒａと、第二流体Ｂを第二方向に流通させる第二流路Ｒｂとが、第一方向において交互に形成される。   Thereby, in the plate type heat exchanger 1 according to the present embodiment, as shown in FIGS. 10 and 11, the first flow path for causing the first fluid A to flow in the second direction with the heat transfer plates 2 and 3 as boundaries. Ra and second flow paths Rb for flowing the second fluid B in the second direction are alternately formed in the first direction.

また、複数の伝熱プレート２，３の第二孔２０３，３０３が第一方向に連なり、第一流路Ｒａのみに連通し、第一流路Ｒａから第一流体Ａを流出させる第一流体排出路Ｒａ２が形成される（図１０参照）。さらに、複数の伝熱プレート２，３の第三孔２０４，３０４が第一方向に連なり、第二流路Ｒｂのみに連通し、第二流路Ｒｂに第二流体Ｂを流入させる第二流体供給路Ｒｂ１が形成され、複数の伝熱プレート２，３の第四孔２０５，３０５が第一方向に連なり、第二流路Ｒｂのみに連通し、第二流路Ｒｂから第二流体Ｂを流出させる第二流体排出路Ｒｂ２が形成される（図１１参照）。   In addition, the second holes 203 and 303 of the plurality of heat transfer plates 2 and 3 are connected in the first direction, communicate only with the first flow passage Ra, and cause the first fluid A to flow out of the first flow passage Ra. Ra2 is formed (see FIG. 10). Furthermore, the third holes 204 and 304 of the plurality of heat transfer plates 2 and 3 are continuous in the first direction, communicate only with the second flow passage Rb, and cause the second fluid B to flow into the second flow passage Rb. A supply passage Rb1 is formed, and the fourth holes 205 and 305 of the plurality of heat transfer plates 2 and 3 are connected in the first direction, and communicate with only the second passage Rb, and the second fluid B is passed from the second passage Rb. A second fluid discharge passage Rb2 to be discharged is formed (see FIG. 11).

本実施形態にプレート式熱交換器１では、図１０及び図１２に示す如く、複数の流路形成部材４…の貫通孔（第一貫通孔４２０、第二貫通孔４２１、第三貫通孔４２２、第四貫通孔４２３、第五貫通孔４２４、第六貫通孔４２５、第七貫通孔４２６、第八貫通孔４２７）が、連通し、第一流路Ｒａのみに連通した第一流体供給路Ｒａ１であって、第一流路Ｒａに対して第一流体Ａを流入させる第一流体供給路Ｒａ１を形成する。   In the plate type heat exchanger 1 according to the present embodiment, as shown in FIGS. 10 and 12, the through holes (the first through holes 420, the second through holes 421, the third through holes 422) of the plurality of flow path forming members 4. , The fourth through hole 423, the fifth through hole 424, the sixth through hole 425, the seventh through hole 426, and the eighth through hole 427), and the first fluid supply passage Ra1 communicated only with the first passage Ra. That is, the first fluid supply passage Ra1 is formed to allow the first fluid A to flow into the first flow passage Ra.

本実施形態において、複数の流路形成部材４…の配置に対応して、各流路形成部材４の貫通孔（第一貫通孔４２０、第二貫通孔４２１、第三貫通孔４２２、第四貫通孔４２３、第五貫通孔４２４、第六貫通孔４２５、第七貫通孔４２６、第八貫通孔４２７）の配置及び数が異なるため、第一流体供給路Ｒａ１は、下流側に向かうほど第一流体Ａを第一方向に分配する経路となる。   In the present embodiment, the through holes (the first through holes 420, the second through holes 421, the third through holes 422, the fourth through holes 420 of the respective flow path forming members 4 corresponding to the arrangement of the plurality of flow path forming members 4). Because the arrangement and the number of the through holes 423, the fifth through holes 424, the sixth through holes 425, the seventh through holes 426, and the eighth through holes 427 are different, the first fluid supply passage Ra1 is It becomes a path for distributing one fluid A in the first direction.

具体的には、第一流体供給路Ｒａ１は、第一流体Ａの供給源に直接的又は間接的に接続される上流系統ＵＳと、上流系統ＵＳと流体的に接続される下流系統ＤＳとを含む。   Specifically, the first fluid supply passage Ra1 includes an upstream system US directly or indirectly connected to the source of the first fluid A, and a downstream system DS fluidly connected to the upstream system US. Including.

上流系統ＵＳは、第一方向に延びる導入部ＵＳ１であって、第一流体Ａの供給源に繋がる配管（図示しない）に直接的又は間接的に連通する導入部ＵＳ１と、複数の伝熱プレート２，３のうちの第一方向の中間部にある伝熱プレート２，３間と対応した位置に配置された分岐部ＵＳ２であって、第一方向と直交する方向における導入部ＵＳ１と異なる位置で第一方向に貫通するとともに、導入部ＵＳ１と連通した分岐部ＵＳ２と、分岐部ＵＳ２と連通する基端と該基端の反対側の先端とを有する一対の分岐流路ＵＳ３，ＵＳ３であって、第一方向における分岐部ＵＳ２を境にした一方側の領域（第一領域）Ｓ１及び他方側の領域（第二領域）Ｓ２のそれぞれで第一方向に延びる一対の分岐流路ＵＳ３，ＵＳ３を含む。   The upstream system US is an introducing unit US1 extending in the first direction, and is in direct or indirect communication with a pipe (not shown) connected to a supply source of the first fluid A, and a plurality of heat transfer plates A bifurcated portion US2 arranged at a position corresponding to the space between the heat transfer plates 2 and 3 in the middle portion in the first direction of 2 and 3 and different from the introduction portion US1 in the direction orthogonal to the first direction A pair of branch channels US3 and US3 having a branch portion US2 communicating with the introduction portion US1 and a base end communicating with the branch portion US2 and a tip opposite to the base end. A pair of branch flow paths US3 and US3 extending in the first direction in the region (first region) S1 on one side bordering the branch portion US2 in the first direction and the region (second region) S2 on the other side including.

本実施形態の上流系統ＵＳにおいては、複数の流路形成部材４の第一貫通孔４２０が連なって導入部ＵＳ１が形成され、複数の流路形成部材４の第四貫通孔４２３が連なって分岐流路ＵＳ３が形成される。これに伴い、第一方向の中間部にある流路形成部材（上流側基準部材）４の第二貫通孔４２１が分岐部ＵＳ２を構成する。また、第一方向の中間部にある流路形成部材（上流側基準部材）４の第三貫通孔４２２が、導入部ＵＳ１と分岐部ＵＳ２とを連通させる連通部ＵＳ４を構成する。   In the upstream system US of the present embodiment, the first through holes 420 of the plurality of flow path forming members 4 are connected to form the introducing portion US1, and the fourth through holes 423 of the plurality of flow path forming members 4 are connected to branch. A flow path US3 is formed. Along with this, the second through hole 421 of the flow path forming member (upstream-side reference member) 4 in the middle portion in the first direction constitutes the branch portion US2. Further, the third through hole 422 of the flow path forming member (upstream-side reference member) 4 in the middle portion in the first direction constitutes a communicating portion US4 that brings the introducing portion US1 and the branching portion US2 into communication.

下流系統ＤＳは、上流系統ＵＳの分岐流路ＵＳ３の先端と直接的又は間接的に連通する開放部ＤＳ１であって第一方向の複数箇所で対応する第一流路Ｒａに向かって開放した複数の開放部ＤＳ１…を含む。本実施形態において、下流系統ＤＳは、上流系統ＵＳの分岐流路ＵＳ３の先端と直接的又は間接的に連通する最下流分岐部ＤＳ２であって、第二方向において、導入部ＵＳ１及び分岐流路ＵＳ３と異なる位置で第一方向に貫通した最下流分岐部ＤＳ２と、第一方向における最下流分岐部ＤＳ２を境にした一方側の領域（第一領域）Ｓ３及び他方側の領域（第二領域）Ｓ４のそれぞれで第一方向に延びる一対の最下流分岐流路ＤＳ３，ＤＳ３とを含み、最下流分岐流路ＤＳ３，ＤＳ３のそれぞれは、最下流分岐部ＤＳ２と連通する基端と、該基端の反対側の先端であって、開放部ＤＳ１と連通する先端とを有する。   The downstream system DS is an open portion DS1 in direct or indirect communication with the tip of the branch flow path US3 of the upstream system US, and a plurality of open ends DS1 open toward the corresponding first flow path Ra at multiple locations in the first direction. Including the opening portion DS1. In the present embodiment, the downstream system DS is the most downstream branch portion DS2 that directly or indirectly communicates with the tip of the branch channel US3 of the upstream system US, and in the second direction, the introduction section US1 and the branch channel A region (first region) S3 on one side bordering the most downstream branch portion DS2 penetrating in the first direction at a position different from US3 and the most downstream branch portion DS2 in the first direction and a region on the other side (second region And a pair of most downstream branch channels DS3 and DS3 extending in the first direction in each of S4, each of the most downstream branch channels DS3 and DS3 having a proximal end communicating with the most downstream branch portion DS2, and the base It has a tip opposite to the end and in communication with the opening DS1.

本実施形態の下流系統ＤＳにおいては、下流側基準部材４の第五貫通孔４２４が最下流分岐部ＤＳ２を構成する。これに伴い、下流側基準部材４の第六貫通孔４２５が、分岐流路ＵＳ３と最下流分岐部ＤＳ２とを連通させる連通部ＤＳ４を構成する。   In the downstream system DS of the present embodiment, the fifth through hole 424 of the downstream side reference member 4 constitutes the most downstream branch portion DS2. Along with this, the sixth through hole 425 of the downstream side reference member 4 configures the communication portion DS4 that causes the branch flow path US3 and the most downstream branch portion DS2 to communicate with each other.

そして、第一方向における最下流分岐部ＤＳ２を境にした一方側の領域（第一領域）Ｓ３及び他方側の領域（第二領域）Ｓ４のそれぞれにある流路形成部材４の第七貫通孔４２６が連なり、最下流分岐部ＤＳ２と連通した最下流分岐流路ＤＳ３が形成される。また、第一方向における最下流分岐部ＤＳ２を境にした一方側の領域（第一領域）Ｓ３及び他方側の領域（第二領域）Ｓ４のそれぞれの第一方向の中間部にある流路形成部材４の第八貫通孔４２７が、第一流路Ｒａに向けて開放した開放部ＤＳ１を構成する。   The seventh through hole of the flow passage forming member 4 in each of the first region S3 and the second region S4 bordering the most downstream branch portion DS2 in the first direction. 426 are connected, and the most downstream branch flow passage DS3 in communication with the most downstream branch portion DS2 is formed. In addition, the flow path is formed in the first direction intermediate portion of one region (first region) S3 and the other region (second region) S4 bordering on the most downstream branch portion DS2 in the first direction. The eighth through hole 427 of the member 4 constitutes an open portion DS1 opened toward the first flow passage Ra.

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、ノズル５２に接続された配管（図示しない）から第一流体供給路Ｒａ１に第一流体Ａが供給されると、第一流体Ａは、導入部ＵＳ１を第一方向に流通する。そして、第一流体Ａは、部材配置領域Ｓの第一方向の中間部（略中間）に到達すると、連通部ＵＳ４を通って分岐部ＵＳ２に到達する。分岐部ＵＳ２には、第一方向において、当該分岐部ＵＳ２の両側に延びる一対の分岐流路ＵＳ３，ＵＳ３が連通しているため、第一流体Ａは、分岐部ＵＳ２から一対の分岐流路ＵＳ３，ＵＳ３を流通する。すなわち、第一流体Ａは、分岐部ＵＳ２を起点にして第一方向の両側に分配される。そして、第一流体Ａが分岐流路ＵＳ３，ＵＳ３を流通し、部材配置領域Ｓの第一方向の中間部（上流側基準部材４）を境界Ｅ１とする第一領域Ｓ１及び第二領域Ｓ２のそれぞれの中間部に到達すると、その中間部にある流路形成部材（下流側基準部材）４の連通部ＤＳ４を通って最下流分岐部ＤＳ２に到達する。   The plate type heat exchanger 1 according to the present embodiment is as described above, and when the first fluid A is supplied from the pipe (not shown) connected to the nozzle 52 to the first fluid supply path Ra1, The fluid A flows in the introduction portion US1 in the first direction. Then, when the first fluid A reaches a middle portion (approximately middle) in the first direction of the member disposition area S, the first fluid A reaches the branch portion US2 through the communication portion US4. Since a pair of branch flow paths US3 and US3 extending on both sides of the branch portion US2 communicate with the branch portion US2 in the first direction, the first fluid A flows from the branch portion US2 to the pair of branch flow paths US3 , Distribute the US3. That is, the first fluid A is distributed to both sides in the first direction starting from the branch portion US2. Then, the first fluid A flows in the branch channels US3 and US3 and the first region S1 and the second region S2 of which the intermediate portion (upstream reference member 4) in the first direction of the member disposition region S is the boundary E1. When reaching each middle part, it reaches the most downstream branch part DS2 through the communication part DS4 of the flow path forming member (downstream side reference member) 4 in the middle part.

最下流分岐部ＤＳ２には、第一方向において、当該最下流分岐部ＤＳ２の両側に延びる一対の最下流分岐流路ＤＳ３が連通しているため、第一流体Ａは、最下流分岐部ＤＳ２から一対の最下流分岐流路ＤＳ３，ＤＳ３を流通する。すなわち、第一流体Ａは、最下流分岐部ＤＳ２を起点にして第一方向の両側に分配される。   Since the pair of most downstream branch channels DS3 extending on both sides of the most downstream branch DS2 communicates with the most downstream branch DS2 in the first direction, the first fluid A flows from the most downstream branch DS2 The pair of most downstream branch flow paths DS3 and DS3 are circulated. That is, the first fluid A is distributed to both sides in the first direction starting from the most downstream branch portion DS2.

そして、第一流体Ａが最下流分岐流路ＤＳ３，ＤＳ３を流通し、下流側基準部材４を境界とする一方側の領域及び他方側の領域の第一方向の中間部に到達すると、その中間部にある流路形成部材４の開放部ＤＳ１から第一流路Ｒａに向けて流出する。   Then, when the first fluid A flows in the most downstream branch flow channels DS3 and DS3 and reaches the intermediate portion in the first direction of the region on one side bordering the downstream side reference member 4 and the region on the other side, It flows out from open part DS1 of channel formation member 4 in a part towards 1st channel Ra.

本実施形態において、流路形成部材４において、本体部４０及び嵌合部４１のそれぞれの外周４００，４１０が直線部４００ｂ，４１０ｂを有し、該外周４００，４１０に含まれる円弧部４００ａ，４１０ａの中心ＣＰ１，ＣＰ２から直線部４００ｂ，４１０ｂまでの最短の直線距離Ｌ１，Ｌ２が第一孔２０２，３０２の半径よりも短く設定されるため、複数箇所にある開放部ＤＳ１のそれぞれから流出した第一流体Ａは、第一方向に連なった第一孔２０２，３０２と流路形成部材４の直線部４００ｂ，４１０ｂとの間の空間で第一方向に広がりつつ、直近にある少なくとも一つ（本実施形態においては複数）の第一流路Ｒａに流入する。すなわち、供給された第一流体Ａは、同一距離又は略同一距離の経路を通って第一方向における複数箇所に均等に分配され、複数の第一流路Ｒａのそれぞれ（分配された箇所に近い第一流路Ｒａ）に流れ込む。   In the present embodiment, in the flow path forming member 4, the outer peripheries 400 and 410 of the main body portion 40 and the fitting portion 41 respectively have straight portions 400 b and 410 b, and arc portions 400 a and 410 a included in the outer peripheries 400 and 410. The shortest linear distances L1 and L2 from the centers CP1 and CP2 of the first to the straight portions 400b and 410b are set shorter than the radius of the first holes 202 and 302. One fluid A extends in the first direction in the space between the first holes 202 and 302 connected in the first direction and the straight portions 400 b and 410 b of the flow path forming member 4, In the embodiment, it flows into the plurality of first flow paths Ra. That is, the supplied first fluid A is equally distributed to a plurality of locations in the first direction through the same distance or approximately the same distance, and each of the plurality of first flow paths Ra (a position close to the distributed location It flows into one flow path Ra).

そして、第一流体Ａは、第一流路Ｒａを第二方向に流通した上で、第一流体排出路Ｒａ２及びこれに繋がるノズル５３を通って流出する。   Then, the first fluid A flows through the first flow passage Ra in the second direction, and then flows out through the first fluid discharge passage Ra2 and the nozzle 53 connected thereto.

これに対し、図１１に示す如く、ノズル５４に接続された配管（図示しない）から第二流体供給路Ｒｂ１に第二流体Ｂが供給されると、第二流体Ｂは、第二流体供給路Ｒｂ１を通って複数の第二流路Ｒｂに流入する。そして、第二流体Ｂは、第二流路Ｒｂを第二方向に流通した上で、第二流体排出路Ｒｂ２及びこれに繋がるノズル５５を通って流出する。   On the other hand, as shown in FIG. 11, when the second fluid B is supplied to the second fluid supply passage Rb1 from a pipe (not shown) connected to the nozzle 54, the second fluid B is supplied to the second fluid supply passage It flows into the plurality of second flow paths Rb through Rb1. Then, the second fluid B flows in the second flow path Rb in the second direction, and then flows out through the second fluid discharge path Rb2 and the nozzle 55 connected thereto.

このように、第一流体Ａが第一流路Ｒａを流通するのに併せ、第二流体Ｂが第二流路Ｒｂを流通することにより、第一流体Ａ及び第二流体Ｂは、第一流路Ｒａと第二流路Ｒｂとを区画する伝熱プレート２，３を介して熱交換を行う。   As described above, when the first fluid A flows through the first flow passage Ra and the second fluid B flows through the second flow passage Rb, the first fluid A and the second fluid B are the first flow passage. Heat exchange is performed via the heat transfer plates 2 and 3 which partition Ra and the second flow path Rb.

以上のように、プレート式熱交換器１は、第一方向に貫通した貫通孔２０２，３０２，２０３，３０３，２０４，３０４，２０５，３０５を互いに対応した位置に有する複数の伝熱プレート２，３であって、第一方向に重ね合わされ、第一流体Ａを流通させる第一流路Ｒａと第二流体Ｂを流通させる第二流路Ｒｂとを第一方向で交互に形成した複数の伝熱プレート２，３と、伝熱プレート２，３の貫通孔（第一孔）２０２，３０２と対応する位置で第一方向に連なり、第一流体Ａを第一流路Ｒａのみに供給する第一流体供給路Ｒａ１を形成する複数の流路形成部材４…とを備え、複数の流路形成部材４…のそれぞれは、第一方向に貫通した貫通孔（第一貫通孔４２０、第二貫通孔４２１、第三貫通孔４２２、第四貫通孔４２３、第五貫通孔４２４、第六貫通孔４２５、第七貫通孔４２６、第八貫通孔４２７）であって、相互に連続して第一流体供給路Ｒａ１を形成する少なくとも一つの貫通孔（第一貫通孔４２０、第二貫通孔４２１、第三貫通孔４２２、第四貫通孔４２３、第五貫通孔４２４、第六貫通孔４２５、第七貫通孔４２６、第八貫通孔４２７の少なくとも何れか一つ）を有し、第一流体供給路Ｒａ１は、第一流体Ａの供給源に直接的又は間接的に接続される上流系統ＵＳと、上流系統ＵＳと流体的に接続される下流系統ＤＳとを含み、上流系統ＵＳは、第一方向に延びる導入部ＵＳ１であって、第一流体Ａの供給源に繋がる配管に直接的又は間接的に連通する導入部ＵＳ１と、複数の伝熱プレート２，３のうちの第一方向の中間部にある伝熱プレート２，３間と対応した位置に配置された分岐部ＵＳ２であって、第一方向と直交する方向における導入部ＵＳ１と異なる位置で第一方向に貫通するとともに、導入部ＵＳ１と連通した分岐部ＵＳ２と、分岐部ＵＳ２と連通する基端と該基端の反対側の先端とを有する一対の分岐流路ＵＳ３，ＵＳ３であって、第一方向における分岐部ＵＳ２を境にした一方側の領域（第一領域）Ｓ１及び他方側の領域（第二領域）Ｓ２のそれぞれで第一方向に延びる一対の分岐流路ＵＳ３，ＵＳ３を含み、下流系統ＤＳは、上流系統ＵＳの分岐流路ＵＳ３，ＵＳ３の先端と直接的又は間接的に連通する開放部ＤＳ１，ＤＳ１であって、第一方向の複数箇所で対応する第一流路Ｒａに向かって開放した複数の開放部ＤＳ１，ＤＳ１を含む。   As described above, the plate-type heat exchanger 1 includes the plurality of heat transfer plates 2 having the through holes 202, 302, 203, 303, 204, 304, 205, and 305 penetrating in the first direction at mutually corresponding positions, 3 and a plurality of heat transfer in which a first flow passage Ra for passing the first fluid A and a second flow passage Rb for passing the second fluid B are alternately formed in the first direction. A first fluid which is connected in the first direction at a position corresponding to the plates 2 and 3 and the through holes (first holes) 202 and 302 of the heat transfer plates 2 and 3 and supplies the first fluid A only to the first flow passage Ra. A plurality of flow path forming members 4 forming the supply path Ra1 are provided, and each of the plurality of flow path forming members 4 is a through hole (first through hole 420, second through hole 421) penetrating in the first direction. , Third through hole 422, fourth through hole 423, fifth through hole 4 4, the sixth through hole 425, the seventh through hole 426, the eighth through hole 427), and at least one through hole (first through hole 420, which forms the first fluid supply passage Ra1 continuously to one another) At least one of the second through hole 421, the third through hole 422, the fourth through hole 423, the fifth through hole 424, the sixth through hole 425, the seventh through hole 426, and the eighth through hole 427) The first fluid supply path Ra1 includes the upstream system US directly or indirectly connected to the source of the first fluid A, and the downstream system DS fluidly connected to the upstream system US, The system US is an introducing part US1 extending in the first direction, and is directly or indirectly in communication with a pipe connected to a supply source of the first fluid A, and a plurality of heat transfer plates 2, 3 Corresponded between the heat transfer plates 2 and 3 in the middle of the first direction of And a branch portion US2 penetrating through in the first direction at a position different from the introduction portion US1 in the direction orthogonal to the first direction, the branch portion US2 communicating with the introduction portion US1, and the branch portion US2 A pair of branch channels US3 and US3 each having a proximal end in communication and a distal end opposite to the proximal end, and a region (first region) S1 on one side bordering the branch portion US2 in the first direction The downstream system DS includes a pair of branch channels US3 and US3 extending in the first direction in each of the other regions (second regions) S2, and the downstream system DS directly or with the tip of the branch channels US3 and US3 of the upstream system US The open portions DS1 and DS1 indirectly communicating with each other include a plurality of open portions DS1 and DS1 opened toward the corresponding first flow path Ra at a plurality of locations in the first direction.

上記構成によれば、流路形成部材４によって形成される第一流体供給路Ｒａ１は、第一方向に重ね合わされた複数の伝熱プレート２，３のうちの第一方向の中間部にある伝熱プレート２，３と対応する位置を基準とした第一方向の一方側の領域（第一領域）Ｓ１及び他方側の領域（第二領域）Ｓ２のそれぞれに分岐した態様で形成される。   According to the above configuration, the first fluid supply path Ra1 formed by the flow path forming member 4 is located at the intermediate portion in the first direction of the plurality of heat transfer plates 2 and 3 stacked in the first direction. It forms in the aspect branched to each area | region (1st area | region) S1 of one side of the 1st direction based on the position corresponding to the heat plates 2 and 3 and area | region (2nd area | region) S2 of the other side.

これにより、第一流体供給路Ｒａ１を流通する第一流体Ａは、第一方向の少なくとも二か所に分配された状態で第一流路Ｒａに到達する。すなわち、分岐部ＵＳ２から第一流路Ｒａに到達するまでの第一流体Ａの流通距離が同一又は略同一の状態で、第一流体Ａが第一方向の異なる位置にある開放部ＤＳ１…から流出する。   Thereby, the first fluid A flowing through the first fluid supply passage Ra1 reaches the first flow passage Ra in a state of being distributed to at least two places in the first direction. That is, the first fluid A flows out from the open portions DS1 at different positions in the first direction in a state where the flow distance of the first fluid A from the branch portion US2 to the first flow path Ra is the same or substantially the same. Do.

従って、第一流体Ａは、第一方向の複数箇所に分配され、複数の第一流路Ｒａのそれぞれに対して略等しい状態で流入する。よって、本実施形態に係るプレート式熱交換器１は、複数の第一流路Ｒａに対して蒸発又は凝縮の対象となる第一流体Ａを均等に供給でき、熱交換性能を高めることができる。   Therefore, the first fluid A is distributed to a plurality of locations in the first direction, and flows into the plurality of first flow paths Ra in substantially the same state. Therefore, the plate type heat exchanger 1 according to the present embodiment can uniformly supply the first fluid A to be evaporated or condensed to the plurality of first flow paths Ra, and can improve the heat exchange performance.

本実施形態において、複数の流路形成部材４…のそれぞれは、第二流路Ｒｂを挟んで第一方向に並ぶ第一流路Ｒａに対応して配置され、隣り合う伝熱プレート２，３の貫通孔（第一孔）２０２，３０２の周囲に挟まれている。このようにすれば、複数の流路形成部材４…のそれぞれが、伝熱プレート２，３によって拘束される。従って、複数の流路形成部材４…の位置ズレが防止される結果、複数の流路形成部材４…の貫通孔によって形成される第一流体供給路Ｒａ１の連通性が確実に確保される。   In the present embodiment, each of the plurality of flow passage forming members 4 is disposed corresponding to the first flow passage Ra aligned in the first direction across the second flow passage Rb, and the adjacent heat transfer plates 2, 3 The through holes (first holes) 202 and 302 are sandwiched. In this way, each of the plurality of flow path forming members 4 is restrained by the heat transfer plates 2 and 3. Therefore, as a result of preventing displacement of the plurality of flow path forming members 4 ..., the communication of the first fluid supply path Ra1 formed by the through holes of the plurality of flow path forming members 4 ... is reliably ensured.

本実施形態において、下流系統ＤＳは、上流系統ＵＳの分岐流路ＵＳ３，ＵＳ３の先端と直接的又は間接的に連通する最下流分岐部ＤＳ２であって、第一方向と直交する方向における導入部ＵＳ１及び分岐流路ＵＳ３と異なる位置で第一方向に貫通した最下流分岐部ＤＳ２と、第一方向における最下流分岐部ＤＳ２を境にした一方側の領域（第一領域）Ｓ３及び他方側の領域（第二領域）Ｓ４のそれぞれで第一方向に延びる一対の最下流分岐流路ＤＳ３，ＤＳ３とを含み、最下流分岐流路ＤＳ３，ＤＳ３のそれぞれは、最下流分岐部ＤＳ２と連通する基端と、該基端の反対側の先端であって、開放部ＤＳ１と連通する先端とを有する。   In the present embodiment, the downstream system DS is the most downstream branch section DS2 that directly or indirectly communicates with the tip of the branch flow path US3, US3 of the upstream system US, and the introduction section in the direction orthogonal to the first direction A region (first region) S3 on one side bordering the most downstream branch portion DS2 penetrating in the first direction at a position different from US1 and the branch flow path US3 and the most downstream branch portion DS2 in the first direction Each of the regions (second regions) S4 includes a pair of most downstream branch channels DS3 and DS3 extending in the first direction, and each of the most downstream branch channels DS3 and DS3 is a base that communicates with the most downstream branch portion DS2. It has an end and a tip opposite to the proximal end and in communication with the opening DS1.

上記構成によれば、第一方向に重ね合わされた複数の伝熱プレート２，３のうちの第一方向の中間部にある伝熱プレート２，３と対応する位置を基準とした第一方向の一方側の領域（第一領域）Ｓ１及び他方側の領域（第二領域）Ｓ２のそれぞれにある領域を更に第一方向で細分化した二つの領域（最下流分岐部ＤＳ２を境にした一方側の領域（第一領域）Ｓ３及び他方側の領域（第二領域）Ｓ４）のそれぞれに順々に分岐した態様で形成される。   According to the above configuration, the heat transfer plates 2 and 3 at the middle portion in the first direction of the plurality of heat transfer plates 2 and 3 stacked in the first direction are based on the position corresponding to the heat transfer plates 2 and 3 in the first direction. Two regions (one side bordering the most downstream branch portion DS2) obtained by further dividing the region in each of the region (first region) S1 on the one side and the region (second region) S2 on the other side in the first direction Of the first region S3 and the other region (second region) S4) are formed in such a manner as to sequentially branch.

これにより、第一流体供給路Ｒａ１を流通する第一流体Ａは、上流系統ＵＳだけでなく、下流系統ＤＳにおいても第一方向に順々に分岐した態様で流通した上で第一流路Ｒａに到達する。すなわち、第一流体Ａは、第一方向において異なる位置にある第一流路Ｒａに流入するが、分岐部ＵＳ２から第一流路Ｒａに到達するまでの距離が同一又は略同一になる。   As a result, the first fluid A flowing through the first fluid supply passage Ra1 is circulated not only in the upstream system US but also in the downstream system DS in the first branch direction in a branched manner in the first direction to the first flow passage Ra. To reach. That is, although the first fluid A flows into the first flow path Ra located at different positions in the first direction, the distances from the branch portion US2 to the first flow path Ra are the same or substantially the same.

従って、第一流体Ａは、第一方向の複数箇所に分配され、複数の第一流路Ｒａのそれぞれに対して略等しい状態で流入する。よって、本実施形態に係るプレート式熱交換器１は、複数の第一流路Ｒａに対して蒸発又は凝縮の対象となる第一流体Ａを均等に供給でき、熱交換性能を高めることができる。   Therefore, the first fluid A is distributed to a plurality of locations in the first direction, and flows into the plurality of first flow paths Ra in substantially the same state. Therefore, the plate type heat exchanger 1 according to the present embodiment can uniformly supply the first fluid A to be evaporated or condensed to the plurality of first flow paths Ra, and can improve the heat exchange performance.

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、適宜変更を加え得ることは勿論である。   The present invention is not limited to the above embodiment, and it is needless to say that appropriate modifications can be made without departing from the scope of the present invention.

上記実施形態において、第一流路Ｒａに第一流体Ａを供給する第一流体供給路Ｒａ１を複数の流路形成部材４…で構成したが、例えば、第二流路Ｒｂに対して第二流体Ｂを均等に供給されるような場合には、第二流体供給路Ｒｂ１についても、複数の流路形成部材で構成してもよい。この場合の複数の流路形成部材は、第一流体供給路Ｒａ１を形成する流路形成部材４と同様に構成されることは言うまでもない。   In the above embodiment, the first fluid supply path Ra1 for supplying the first fluid A to the first flow path Ra is configured by the plurality of flow path forming members 4... But, for example, the second fluid for the second flow path Rb In the case where B is uniformly supplied, the second fluid supply passage Rb1 may also be constituted by a plurality of flow passage forming members. It goes without saying that the plurality of flow path forming members in this case are configured in the same manner as the flow path forming member 4 that forms the first fluid supply path Ra1.

上記実施形態において、複数の流路形成部材４…の形成した第一流体供給路Ｒａ１の下流系統ＤＳが最下流分岐部ＤＳ２及び一対の最下流分岐流路ＤＳ３，ＤＳ３を備えたが、これに限定されない。例えば、上流系統ＵＳの分岐流路ＵＳ３，ＵＳ３のそれぞれの先端に対し、下流系統ＤＳの開放部ＤＳ１が接続され、第一流体供給路Ｒａ１が一か所（分岐部ＵＳ２）で第一方向に分岐した形態に形成され、二か所の開放部ＤＳ１，ＤＳ１から第一流路Ｒａに向けて第一流体Ａを流出させるようにしてもよい。   In the above embodiment, the downstream system DS of the first fluid supply passage Ra1 formed by the plurality of flow passage forming members 4 has the most downstream branch portion DS2 and the pair of most downstream branch passages DS3, DS3 It is not limited. For example, the open end DS1 of the downstream system DS is connected to each tip of the branch flow paths US3 and US3 of the upstream system US, and the first fluid supply path Ra1 is in one direction (branch area US2) in the first direction The first fluid A may flow out from the two open portions DS1 and DS1 toward the first flow passage Ra.

また、複数の流路形成部材４…の形成した第一流体供給路Ｒａ１の下流系統ＤＳが、上流系統ＵＳの分岐流路ＵＳ３と最下流分岐部ＤＳ２とを流体的に接続する中間の分岐系統であって、第一流体Ａを第一方向に分配する少なくとも一つの分岐系統をさらに備えてもよい。   In addition, a downstream branch system DS of the first fluid supply passage Ra1 formed by the plurality of flow passage forming members 4 ... is an intermediate branch system in which the branch passage US3 of the upstream system US and the most downstream branch portion DS2 are fluidly connected And at least one branch system for distributing the first fluid A in the first direction.

この場合、中間の分岐系統は、上流側の流路（例えば、上流系統ＵＳの分岐流路ＵＳ３）に接続される中間分岐部と、中間分岐部と連通し且つ中間分岐部を境にした一方側の領域（第一領域）及び他方の領域（第二領域）のそれぞれで第一方向に延びる一対の中間分岐流路であって、自身の延びる一方側の領域（第一領域）及び他方の領域（第二領域）の第一方向の中間部に先端（終端）を有し、該先端に下流系統ＤＳ内の下流側の部位（例えば、開放部ＤＳ１）に接続される一対の中間分岐流路とを備えればよい。なお、言うまでもないが、複数の流路形成部材４…のそれぞれにおいて、分岐系統の数に応じた数の貫通孔が異なる位置に配置されることは勿論である。   In this case, the middle branch system is in communication with the middle branch connected to the upstream flow path (for example, the branch flow path US3 of the upstream system US) and the middle branch, and is bordered by the middle branch A pair of middle branch flow channels extending in the first direction in each of the side area (first area) and the other area (second area), which is the one side area (first area) and the other of which one side extends A pair of middle branch flow having a tip (end) at the middle in the first direction of the region (second region) and connected to the downstream side portion (for example, open portion DS1) in the downstream system DS at the tip It is sufficient to have a path. Needless to say, it goes without saying that in each of the plurality of flow path forming members 4 ..., the number of through holes corresponding to the number of branch systems is disposed at different positions.

上記実施形態において、流路形成部材４…の本体部４０及び嵌合部４１の外周４００，４１０が円弧部４００ａ，４１０ａ及び直線部４００ｂ，４１０ｂを含み、該外周４００，４１０の円弧部４００ａ，４１０ａの中心ＣＰ１，ＣＰ２から直線部４００ｂ，４１０ｂまでの最短の直線距離Ｌ１，Ｌ２が第一孔２０２，３０２の半径よりも設定されることで、開放部ＤＳ１から流出した第一流体Ａが第一方向に広がりつつ、該開放部ＤＳ１の直近にある複数の第一流路Ｒａに流入する（第一流体供給路Ｒａ１において分配された第一流体Ａが複数の第一流路Ｒａの全てに流入する）ようにしたが、これに限定されない。   In the above embodiment, the outer peripheries 400 and 410 of the main body portion 40 of the flow path forming member 4 and the fitting portion 41 include arc portions 400a and 410a and straight portions 400b and 410b. The shortest linear distances L1 and L2 from the centers CP1 and CP2 of 410a to the straight portions 400b and 410b are set more than the radius of the first holes 202 and 302, so that the first fluid A flowing out from the open portion DS1 is While expanding in one direction, it flows into a plurality of first flow paths Ra in the immediate vicinity of the opening portion DS1 (the first fluid A distributed in the first fluid supply path Ra1 flows into all of the plurality of first flow paths Ra ) But it is not limited thereto.

例えば、図１３及び図１４に示す如く、複数の流路形成部材４…は、本体部４０の外周縁部が隣り合う伝熱プレート２，３に挟まれることを前提に、本体部４０の中心ＣＰ１から外周４００までの直線距離（円形の場合には、半径）ｒ１が全周の何れの箇所においても第一孔２０２，３０２の半径よりも長くなるように形成されてもよい。この場合において、複数の流路形成部材４…の外径は、第一孔２０２，３０２の孔形状と相似形状にすることが好ましい。   For example, as shown in FIG. 13 and FIG. 14, the plurality of flow path forming members 4... Center the main body 40 on the premise that the outer peripheral edge of the main body 40 is sandwiched between the heat transfer plates 2 and 3 adjacent to each other. The linear distance (in the case of a circle, the radius) r1 from CP1 to the outer periphery 400 may be formed to be longer than the radius of the first holes 202 and 302 at any point on the entire periphery. In this case, it is preferable that the outer diameters of the plurality of flow path forming members 4 be similar to the shape of the first holes 202 and 302.

この場合、図１５に示す如く、第一方向に連なる複数の流路形成部材４…のそれぞれは、上記実施形態と同様に、貫通孔（第一貫通孔４２０、第二貫通孔４２１、第三貫通孔４２２、第四貫通孔４２３、第五貫通孔４２４、第六貫通孔４２５、第七貫通孔４２６、第八貫通孔４２７の少なくとも何れか一つ）を有することで、第一方向に間隔をあけて配置される特定の流路形成部材４…の開放部ＤＳ１のみが対応する単一の第一流路Ｒａと連通する。   In this case, as shown in FIG. 15, each of the plurality of flow path forming members 4 connected in the first direction is a through hole (a first through hole 420, a second through hole 421, a third By providing at least any one of the through holes 422, the fourth through holes 423, the fifth through holes 424, the sixth through holes 425, the seventh through holes 426, and the eighth through holes 427, the distance in the first direction Only the open portion DS1 of the specific flow path forming member 4... Disposed open opens in communication with the corresponding single first flow path Ra.

そのため、他の第一流路Ｒａ（開放部ＤＳ１を有していない流路形成部材４…と対応する複数の第一流路Ｒａ）は、伝熱プレート２，３に設けられた貫通孔（採番しない）であって、第一孔２０２，３０２から第二方向において離れた位置で第一方向に貫通した貫通孔を介して互いに連通され、その貫通孔によって少なくとも二回ターンし、最下流にある第一流路Ｒａが第一流体排出路Ｒａ２に接続されればよい。   Therefore, the other first flow paths Ra (a plurality of first flow paths Ra corresponding to the flow path forming members 4 not having the open portion DS1) are through holes (numbering) provided in the heat transfer plates 2 and 3 Not communicate with each other via a through hole penetrating in the first direction at a position separated from the first holes 202 and 302 in the second direction, and turn at least twice by the through holes, and are at the most downstream position The first flow passage Ra may be connected to the first fluid discharge passage Ra2.

このようにしても、第一流体供給路Ｒａ１において、第一流体Ａが第一方向に少なくとも一回分配された上で、複数の開放部ＤＳ１から第一流路Ｒａに向け流出するため、第一流体Ａの流通距離は均一又は略均一となる。従って、上記実施形態と同様の作用及び効果を奏することができる。   Even in this case, in the first fluid supply passage Ra1, the first fluid A is distributed at least once in the first direction, and then flows out from the plurality of open parts DS1 toward the first passage Ra. The flow distance of the fluid A is uniform or substantially uniform. Therefore, the same operation and effect as the above embodiment can be achieved.

上記実施形態において、部材配置領域Ｓの第一方向の中間部にある流路形成部材（上流側基準部材）４が単一の第二貫通孔４２１を有するとともに、上流側基準部材４の両側にある流路形成部材４が単一の第二貫通孔４２１と対応する位置に第四貫通孔４２３を有したが、これに限定されない。   In the above embodiment, the flow path forming member (upstream reference member) 4 at the middle portion in the first direction of the member disposition area S has a single second through hole 421 and on both sides of the upstream reference member 4 Although the certain flow-path formation member 4 had the 4th through-hole 423 in the position corresponding to the single 2nd through-hole 421, it is not limited to this.

例えば、図１６に示す如く、部材配置領域Ｓの第一方向の中間部にある流路形成部材（上流側基準部材）４が、異なる位置に二つの第二貫通孔４２１を有し、上流側基準部材４の第一方向の一方側の領域（第一領域）Ｓ１にある流路形成部材４が二つの第二貫通孔４２１のうちの一方の第二貫通孔４２１と対応する位置に第四貫通孔４２３を有するとともに、上流側基準部材４の第一方向の他方側の領域（第二領域）Ｓ２にある流路形成部材４が二つの第二貫通孔４２１のうちの他方の第二貫通孔４２１と対応する位置に第四貫通孔４２３を有してもよい。   For example, as shown in FIG. 16, the flow path forming member (upstream reference member) 4 at the intermediate portion in the first direction of the member disposition area S has two second through holes 421 at different positions, The flow path forming member 4 in the region (first region) S1 on one side in the first direction of the reference member 4 is positioned at a position corresponding to the second through hole 421 of one of the two second through holes 421 The flow passage forming member 4 having the through hole 423 and in the region (second region) S2 on the other side of the upstream reference member 4 in the first direction is the second through hole of the other of the two second through holes 421 A fourth through hole 423 may be provided at a position corresponding to the hole 421.

すなわち、上流系統ＵＳは、単一の分岐部ＵＳ２に対して一対の分岐流路ＵＳ３が接続された態様に限定されるものではなく、例えば、異なる位置にある分岐部ＵＳ２のそれぞれに対して何れか一方の分岐流路ＵＳ３が接続された態様にされてもよい。   That is, the upstream system US is not limited to a mode in which a pair of branch flow paths US3 is connected to a single branch portion US2, and, for example, any one of the branch portions US2 in different positions may be used. Alternatively, one branch flow path US3 may be connected.

また、上流側基準部材４が偶数個の第二貫通孔４２１（分岐部ＵＳ２）有し、上流側基準部材４の第一方向の一方側の領域（第一領域）Ｓ１にある流路形成部材４が上流側基準部材４の有する第二貫通孔４２１のうちの半分の第二貫通孔４２１のそれぞれと対応する位置に第四貫通孔４２３を有するとともに、上流側基準部材４の第一方向の他方側の領域（第二領域）Ｓ２にある流路形成部材４が、上流側基準部材４の有する第二貫通孔４２１のうちの半分の第二貫通孔４２１であって、一方側の領域（第一領域Ｓ１）の流路形成部材４の第四貫通孔４２３と対応しない位置にある第二貫通孔４２１と対応する位置に第四貫通孔４２３を有してもよい。すなわち、上流系統ＵＳにおいて、複数対の分岐流路ＵＳ３，ＵＳ３が設けられてもよい。   In addition, the upstream side reference member 4 has an even number of second through holes 421 (branch portion US2), and the flow path forming member is in the region (first region) S1 on one side of the upstream reference member 4 in the first direction. A fourth through hole 423 is provided at a position corresponding to each of the second through holes 421 of half of the second through holes 421 of the upstream side reference member 4 and the first side of the upstream side reference member 4 The flow passage forming member 4 in the other side region (second region) S2 is a half of the second through holes 421 of the second through holes 421 of the upstream side reference member 4, and the one side region The fourth through hole 423 may be provided at a position corresponding to the second through hole 421 which does not correspond to the fourth through hole 423 of the flow passage forming member 4 in the first region S1). That is, in the upstream system US, a plurality of pairs of branch flow paths US3, US3 may be provided.

この場合、各対の分岐流路ＵＳ３，ＵＳ３の第一方向の長さ（先端の位置）が異なっていてもよいし、同じであってもよい。この点、下流系統ＤＳの最下流分岐部ＤＳ２及び最下流分岐流路ＤＳ３も同様である。   In this case, the length in the first direction (the position of the tip) of each pair of branched flow paths US3 and US3 may be different or may be the same. The same applies to the most downstream branch portion DS2 and the most downstream branch channel DS3 of the downstream system DS in this regard.

上記実施形態の流路形成部材４…において、本体部４０の第一面のみに嵌合部４１が接続されたが、これに限定されない。例えば、本体部４０の第一面及び第二面のそれぞれに嵌合部４１が接続されてもよい。この場合、第一方向における嵌合部４１の厚みは、一つの伝熱プレート２，３の厚みに対応して設定されればよい。   Although the fitting part 41 was connected only to the 1st surface of the main-body part 40 in flow-path formation member 4 ... of the said embodiment, it is not limited to this. For example, the fitting portion 41 may be connected to each of the first surface and the second surface of the main body portion 40. In this case, the thickness of the fitting portion 41 in the first direction may be set to correspond to the thickness of one of the heat transfer plates 2 and 3.

上記実施形態において、流路形成部材４（本体部４０）の外周縁部が隣り合う伝熱プレート２，３の貫通孔（第一孔２０２，３０２）の周囲に挟まれたが、これに限定されない。例えば、複数の流路形成部材４…のそれぞれの外径が、伝熱プレート２，３の貫通孔（第一孔）２０２，３０２の孔径よりも小さく設定され、第一方向に連なった複数の流路形成部材４…が、第一方向に連なる複数の伝熱プレート２，３の貫通孔（第一孔）２０２，３０２内に挿入されてもよい。   In the above embodiment, the outer peripheral edge portion of the flow path forming member 4 (main body portion 40) is sandwiched around the through holes (first holes 202 and 302) of the heat transfer plates 2 and 3 adjacent to each other, but is limited thereto I will not. For example, the outer diameters of the plurality of flow passage forming members 4 are set to be smaller than the hole diameters of the through holes (first holes) 202 and 302 of the heat transfer plates 2 and 3, and the plurality of The flow path forming members 4 may be inserted into the through holes (first holes) 202 and 302 of the plurality of heat transfer plates 2 and 3 connected in the first direction.

この場合、第一方向で隣り合う流路形成部材４同士が機械的に接続されることが好ましく、例えば、隣り合う流路形成部材４，４同士が凹凸嵌合によって接続されてもよい。   In this case, it is preferable that the flow path forming members 4 adjacent to each other in the first direction be mechanically connected. For example, the adjacent flow path forming members 4 and 4 may be connected by concavo-convex fitting.

また、第一方向に連なった複数の流路形成部材４…（一体化した複数の流路形成部材４）のうちの両端にある流路形成部材４は、最も端にある伝熱プレート２，３或いはエンドプレート５，６に支持されてもよい。但し、導入部ＵＳ１のみに第一流体Ａが供給されるように、最も端にある流路形成部材４は、最も端にある伝熱プレート２或いはエンドプレート５と液密に接続され、これらの貫通孔は、導入部ＵＳ１と対応したサイズに設定されることは勿論である。   Further, the flow passage forming members 4 at both ends of the plurality of flow passage forming members 4 connected in the first direction (a plurality of integrated flow passage forming members 4) are the heat transfer plate 2 at the end, 3 or end plates 5, 6 may be supported. However, in order to supply the first fluid A only to the introducing portion US1, the flow passage forming member 4 at the end is connected in a fluid tight manner to the heat transfer plate 2 or the end plate 5 at the end. Of course, the through hole is set to a size corresponding to the introduction portion US1.

上記実施形態において、複数の流路形成部材４…のそれぞれは、第二流路Ｒｂを挟んで第一方向に並ぶ第一流路Ｒａと対応するように配置されたが、これに限定されない。すなわち、単一の流路形成部材４と、単一の第一流路Ｒａとが一対一の関係にあったが、これに限定されない。例えば、複数の流路形成部材４…のそれぞれ、或いは、複数の流路形成部材４…の少なくとも何れか一つが、二つ以上の第一流路Ｒａと対応するように形成されてもよい。すなわち、流路形成部材４は、少なくとも二つの第一流路Ｒａに跨るように配置されてもよい。但し、複数の流路形成部材４…の貫通孔は、上記実施形態と同様に、第一流体Ａを第一方向に分配する第一流体供給路Ｒａ１を形成可能に配置されることは勿論である。   In the above embodiment, each of the plurality of flow path forming members 4 is arranged to correspond to the first flow path Ra aligned in the first direction across the second flow path Rb, but is not limited thereto. That is, although the single flow passage forming member 4 and the single first flow passage Ra were in a one-to-one relationship, it is not limited thereto. For example, each of the plurality of flow path forming members 4 or at least one of the plurality of flow path forming members 4 may be formed to correspond to two or more first flow paths Ra. That is, the flow path forming member 4 may be arranged to straddle at least two first flow paths Ra. However, it goes without saying that the through holes of the plurality of flow path forming members 4 are arranged to be able to form the first fluid supply path Ra1 for distributing the first fluid A in the first direction, as in the above embodiment. is there.

１…プレート式熱交換器、２，３…伝熱プレート、４…流路形成部材、５，６…エンドプレート、２０，３０…プレート本体部、２１，３１…環状嵌合部、４０…本体部、４１…嵌合部、４２…貫通孔、５０，６０…エンドプレート本体、５１，６１…環状嵌合部、５２，５３，５４，５５…ノズル、２００，３００…凹条、２０１，３０１…凸条、２０２，３０２…第一孔（貫通孔）、２０３，３０３…第二孔（貫通孔）、２０４，３０４…第三孔（貫通孔）、２０５，３０５…第四孔（貫通孔）、４００，４１０…外周、４００ａ，４１０ａ…円弧部、４００ｂ，４１０ｂ…直線部、４２０…第一貫通孔（貫通孔）、４２１…第二貫通孔（貫通孔）、４２２…第三貫通孔（貫通孔）、４２３…第四貫通孔（貫通孔）、４２４…第五貫通孔（貫通孔）、４２５…第六貫通孔（貫通孔）、４２６…第七貫通孔（貫通孔）、４２７…第八貫通孔（貫通孔）、Ａ…第一流体、Ｂ…第二流体、ＣＰ１，ＣＰ２…中心、ＤＳ…下流系統、ＤＳ１…開放部、ＤＳ２…最下流分岐部、ＤＳ３…最下流分岐流路、ＤＳ４…連通部、Ｅ１…境界、Ｅ２…境界、Ｌ１，Ｌ２…直線距離、ｒ１…半径、ｒ２…半径、Ｒａ…第一流路、Ｒａ１…第一流体供給路、Ｒａ２…第一流体排出路、Ｒｂ…第二流路、Ｒｂ１…第二流体供給路、Ｒｂ２…第二流体排出路、Ｓ…部材配置領域、Ｓ１…第一領域、Ｓ２…第二領域、Ｓ３…第一領域、Ｓ４…第二領域、Ｓａ…第一面、Ｓｂ…第二面、ＵＳ…上流系統、ＵＳ１…導入部、ＵＳ２…分岐部、ＵＳ３…分岐流路、ＵＳ４…連通部   DESCRIPTION OF SYMBOLS 1 ... Plate type heat exchanger, 2, 3 ... Heat-transfer plate, 4 ... Flow-path formation member, 5, 6 ... End plate, 20, 30 ... Plate main-body part, 21, 31 ... Annular fitting part, 40 ... Main body Parts, 41: fitting part, 42: through hole, 50, 60: end plate main body, 51, 61: annular fitting part, 52, 53, 54, 55: nozzle, 200, 300 ... concave line, 201, 301 ... convex line, 202, 302 ... first hole (through hole), 203, 303 ... second hole (through hole), 204, 304 ... third hole (through hole), 205, 305 ... fourth hole (through hole) Outer periphery 400a 410a arc part 400b 410b linear part 420 first through hole (through hole) 421 second through hole (through hole) 422 third through hole (Through hole), 423 ... fourth through hole (through hole), 424 ... fifth through hole Through hole) 425 sixth through hole (through hole) 426 seventh through hole (through hole) 427 eighth through hole (through hole) A first fluid B second fluid CP1 , CP2 ... center, DS ... downstream system, DS1 ... open part, DS2 ... most downstream branch part, DS3 ... most downstream branch flow path, DS4 ... communication part, E1 ... boundary, E2 ... boundary, L1, L2 ... linear distance, r1 radius, r2 radius, Ra first channel, Ra1 first fluid supply channel, Ra2 first fluid discharge channel, Rb second channel, Rb1 second fluid supply channel Rb2 second fluid Discharge path, S: member arrangement area, S1: first area, S2: second area, S3: first area, S4: second area, Sa: first surface, Sb: second surface, US: upstream system, US1 ... introduction part, US2 ... branch part, US3 ... branch flow path, US4 ... communication part

Claims (3)

第一方向に貫通した貫通孔を互いに対応した位置に有する複数の伝熱プレートであって、第一方向に重ね合わされ、第一流体を流通させる第一流路と第二流体を流通させる第二流路とを第一方向で交互に形成した複数の伝熱プレートと、伝熱プレートの貫通孔と対応する位置で第一方向に連なり、第一流体を第一流路のみに供給する第一流体供給路を形成する複数の流路形成部材とを備え、複数の流路形成部材のそれぞれは、第一方向に貫通した貫通孔であって、相互に連続して第一流体供給路を形成する少なくとも一つの貫通孔を有し、第一流体供給路は、第一流体の供給源に直接的又は間接的に接続される上流系統と、上流系統と流体的に接続される下流系統とを含み、上流系統は、第一方向に延びる導入部であって、第一流体の供給源に繋がる配管に直接的又は間接的に連通する導入部と、複数の伝熱プレートのうちの第一方向の中間部にある伝熱プレート間と対応した位置に配置された分岐部であって、第一方向と直交する方向における導入部と異なる位置で第一方向に貫通するとともに、導入部と連通した分岐部と、分岐部と連通する基端と該基端の反対側の先端とを有する一対の分岐流路であって、第一方向における分岐部を境にした一方側の領域及び他方側の領域のそれぞれで第一方向に延びる一対の分岐流路を含み、下流系統は、上流系統の分岐流路の先端と直接的又は間接的に連通する開放部であって、第一方向の複数箇所で対応する第一流路に向かって開放した複数の開放部を含むことを特徴とするプレート式熱交換器。   A plurality of heat transfer plates having through holes penetrating in a first direction at mutually corresponding positions, the heat transfer plates being overlapped in the first direction, and a second flow passing the first flow and the second flow A plurality of heat transfer plates alternately formed in the first direction with a passage, and a first fluid supply that is connected in the first direction at a position corresponding to the through holes of the heat transfer plate and supplies the first fluid only to the first flow passage And a plurality of flow passage forming members forming the passages, each of the plurality of flow passage forming members being a through hole penetrating in the first direction, at least forming the first fluid supply passage continuously with one another. The first fluid supply passage includes an upstream system connected directly or indirectly to the source of the first fluid and a downstream system fluidly connected to the upstream system, having one through hole; The upstream system is an introduction portion extending in the first direction, and the source of the first fluid An introduction part directly or indirectly in communication with the connected piping, and a branch part disposed at a position corresponding to a position between the heat transfer plates in the middle in the first direction of the plurality of heat transfer plates, A pair penetrating in the first direction at a position different from the introduction part in the direction orthogonal to one direction and having a branch part in communication with the introduction part, a base end in communication with the branch part, and a tip opposite to the base end A branch channel including a pair of branch channels extending in the first direction in each of a region on one side bordering the branch in the first direction and a region on the other side, and the downstream system is an upstream system A plate type characterized in that it is an open part in direct or indirect communication with the tip of the branch flow path, and includes a plurality of open parts opened toward the corresponding first flow path at a plurality of places in the first direction. Heat exchanger. 複数の流路形成部材のそれぞれは、第二流路を挟んで第一方向に並ぶ第一流路に対応して配置され、隣り合う伝熱プレートの貫通孔の周囲に挟まれている請求項１に記載のプレート式熱交換器。   Each of the plurality of flow path forming members is disposed corresponding to the first flow path aligned in the first direction across the second flow path, and is sandwiched around the through holes of the adjacent heat transfer plates. Plate heat exchanger as described in. 下流系統は、上流系統の分岐流路の先端と直接的又は間接的に連通する最下流分岐部であって、第一方向と直交する方向における導入部及び分岐流路と異なる位置で第一方向に貫通した最下流分岐部と、第一方向における最下流分岐部を境にした一方側の領域及び他方側の領域のそれぞれで第一方向に延びる一対の最下流分岐流路とを含み、最下流分岐流路のそれぞれは、最下流分岐部と連通する基端と、該基端の反対側の先端であって、開放部と連通する先端とを有する請求項１又は２に記載のプレート式熱交換器。   The downstream system is the most downstream branch communicating directly or indirectly with the tip of the branch channel of the upstream system, and in the first direction at a position different from the introduction section and the branch channel in the direction orthogonal to the first direction. And a pair of most downstream branch channels extending in the first direction in each of the one side region and the other side region bordering the most downstream branch portion in the first direction, The plate type according to claim 1 or 2, wherein each of the downstream branch channels has a proximal end in communication with the most downstream branch, and a distal end opposite to the proximal end and in communication with the open portion. Heat exchanger.
JP2017235879A 2017-12-08 2017-12-08 Plate type heat exchanger Pending JP2019100686A (en)

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