JP3405879B2 - Plate type refrigerant flow divider - Google Patents

Plate type refrigerant flow divider

Info

Publication number
JP3405879B2
JP3405879B2 JP02403496A JP2403496A JP3405879B2 JP 3405879 B2 JP3405879 B2 JP 3405879B2 JP 02403496 A JP02403496 A JP 02403496A JP 2403496 A JP2403496 A JP 2403496A JP 3405879 B2 JP3405879 B2 JP 3405879B2
Authority
JP
Japan
Prior art keywords
plate
connection port
refrigerant
refrigerant connection
diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP02403496A
Other languages
Japanese (ja)
Other versions
JPH09217968A (en
Inventor
創 佐々木
雅彦 中村
峰敏 出石
太 河村
孝典 大西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP02403496A priority Critical patent/JP3405879B2/en
Publication of JPH09217968A publication Critical patent/JPH09217968A/en
Application granted granted Critical
Publication of JP3405879B2 publication Critical patent/JP3405879B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/40Fluid line arrangements
    • F25B41/42Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • F25B41/48Arrangements for diverging or converging flows, e.g. branch lines or junctions for flow path resistance control on the downstream side of the diverging point, e.g. by an orifice
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • F25B39/028Evaporators having distributing means

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、冷凍機器や空気調
和機の熱交換器に用いられる冷媒分流器に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant flow divider used for a heat exchanger of refrigeration equipment and an air conditioner.

【0002】[0002]

【従来の技術】熱交換器の伝熱管の細径化にともなって
冷媒配管の複数回路化が提案され、さらに、冷媒配管の
省スペース化を考慮したたとえば、特開平64ー909
71号公報に開示された冷媒分流器が提案されている。
2. Description of the Related Art As the heat transfer tubes of a heat exchanger have been made smaller in diameter, it has been proposed to use a plurality of refrigerant pipes. Further, in consideration of space saving of the refrigerant pipes, for example, Japanese Patent Laid-Open No. 64-909.
The refrigerant flow divider disclosed in Japanese Patent No. 71 has been proposed.

【0003】この冷媒分流器は、略U字状管の両端部を
略U字状管に対し略直角で同一方向に曲げた折曲げ部
と、略U字状管の中央部近傍より前記折曲げ部と同一方
向に管を押し出した突き出し部とにより構成されてい
る。
In this refrigerant distributor, both ends of a substantially U-shaped tube are bent in the same direction at substantially right angles to the substantially U-shaped tube, and the folded part is formed from the vicinity of the central portion of the substantially U-shaped tube. It is composed of a bent portion and a protruding portion that pushes out the pipe in the same direction.

【0004】そして、このような構成とすることによ
り、冷媒流路内に突出するものをなくし、冷媒の分流特
性を向上させることができる。また、管の折曲げ部と突
き出し部が同じ方向に形成されているので、冷媒配管の
省スペース化を実現することができるなどの効果があ
る。
With such a structure, it is possible to eliminate the protrusions in the refrigerant flow passage and improve the flow dividing characteristic of the refrigerant. Further, since the bent portion and the protruding portion of the pipe are formed in the same direction, there is an effect that space saving of the refrigerant pipe can be realized.

【0005】[0005]

【発明が解決しようとする課題】しかし、上記の冷媒分
流器では、管を加工したものであるため、冷媒の分流経
路が2経路に限定されそれ以上増やすことが困難であ
る。また、両端部を略U字状管に対し略直角に折曲げる
こと、あるいは突き出し部を均一な厚さで形成すること
が困難である。
However, in the above-mentioned refrigerant flow divider, since the pipe is processed, the refrigerant flow dividing passage is limited to two passages, and it is difficult to increase more. Further, it is difficult to bend both ends at substantially right angles to the substantially U-shaped tube, or to form the protrusion with a uniform thickness.

【0006】上記の事情に鑑み、本発明の目的は、製作
が容易で安価なプレート型冷媒分流器を提供することに
ある。
In view of the above circumstances, an object of the present invention is to provide a plate-type refrigerant distributor which is easy to manufacture and inexpensive.

【0007】[0007]

【課題を解決するための手段】上記の目的を達成するた
め、本発明においては、中央に大径の冷媒接続口が形成
され、この冷媒接続口を中心とする同心円上に複数の小
径の冷媒接続口が形成され、外周部が前記冷媒接続口と
反対側に突出するように絞り加工が施された第1のプレ
ートと、前記大径の冷媒接続口に連通する穴が形成さ
れ、この穴から前記大径の冷媒接続口と小径の冷媒接続
口を接続する放射状の溝が形成された、前記第1のプレ
ートの絞り加工部分の内側に嵌合する第2のプレート
と、前記第1のプレートの絞り加工部分の内側に嵌合す
中実の第3のプレートとを設け、これらのプレートを
鑞材を介して重ね合わせ接合した。
In order to achieve the above object, in the present invention, a large diameter refrigerant connection port is formed in the center, and a plurality of small diameter refrigerants are concentrically formed around the refrigerant connection port. A connection port is formed, and the outer peripheral portion is the refrigerant connection port.
A first plate that has been drawn so as to project to the opposite side and a hole that communicates with the large diameter refrigerant connection port are formed, and from this hole the large diameter refrigerant connection port and the small diameter refrigerant connection port The first preform having a radial groove for connecting
A second plate that fits inside the drawn portion of the table, and a second plate that fits inside the drawn portion of the first plate
And a solid third plate, and these plates were superposed and joined via a brazing material.

【0008】すなわち、前記各プレートは、板材をプレ
ス加工することにより容易に製造することができ、ま
た、これらのプレート相互の位置決めを容易に行え、
処理炉に入れることにより容易に鑞付けする事ができる
ので、製造が容易であり、しかも安価に製造することが
できる。
That is, each of the plates can be easily manufactured by pressing a plate material, and the plates can be easily positioned relative to each other and can be easily brazed by placing them in a heat treatment furnace. Therefore, the manufacturing is easy, and the manufacturing cost is low.

【0009】また、前記第2のプレートに形成された穴
の径および溝の幅が前記大径の冷媒接続口と小径の冷媒
接続口に接続される冷媒配管の肉厚分だけ小さく形成し
たことにより、冷媒接続口に接続用の配管を設ける際
に、冷媒接続口に接続用の配管を第2のプレートに当接
するまで挿入するだけで位置決めできるので、組立てが
容易になる。
Further, the diameter of the hole and the width of the groove formed in the second plate are made smaller by the thickness of the refrigerant pipes connected to the large diameter refrigerant connection port and the small diameter refrigerant connection port. Thus, when the connecting pipe is provided in the refrigerant connection port, the connecting pipe can be positioned by merely inserting the connecting pipe into the refrigerant connection port until it comes into contact with the second plate, which facilitates the assembly.

【0010】[0010]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図1は、本発明によるプレート型
冷媒分流器の斜視図である。同図において、1は第1の
プレートで、中央に大径の冷媒接続口4が形成され、こ
の冷媒接続口4を中心とする同心円上に複数の小径の冷
媒接続口5が形成されている。2は第2のプレートで、
前記冷媒接続口4に連通する穴と、この穴から放射状に
形成され、冷媒接続口4と冷媒接続口5を接続する複数
の溝が形成されている。3は第3のプレートで、中実の
円盤状に形成されている。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a plate type refrigerant distributor according to the present invention. In the figure, 1 is a first plate, a large-diameter refrigerant connection port 4 is formed in the center, and a plurality of small-diameter refrigerant connection ports 5 are formed concentrically around the refrigerant connection port 4. . 2 is the second plate,
A hole communicating with the refrigerant connection port 4 and a plurality of grooves formed radially from the hole and connecting the refrigerant connection port 4 and the refrigerant connection port 5 are formed. 3 is a third plate, which is formed in a solid disk shape.

【0011】そして、前記各プレート1、2、3は、鑞
材を介して重ね合わされ熱処理炉のなかで鑞付けされて
いる。また、各プレート1、2、3を鑞付けする際に冷
媒配管と接続するための接続用の配管6を同時に鑞付け
するようにしてもよい。
The plates 1, 2 and 3 are superposed on each other via a brazing material and brazed in a heat treatment furnace. Moreover, when brazing each plate 1, 2, 3 you may braze simultaneously the piping 6 for connection for connecting with a refrigerant pipe.

【0012】図2は、本発明の他の実施の形態を示す断
面図である。同図において、第1のプレート1は、その
外周部が冷媒接続口4、5と反対側に突出するように絞
り加工が施されている。また、第2、3のプレートは、
その外形が、第1のプレートの絞り加工された部分の内
側に嵌合する大きさに形成されている。7は第2のプレ
ート2に形成された溝である。
FIG. 2 is a sectional view showing another embodiment of the present invention. In the figure, the first plate 1 is drawn so that the outer peripheral portion thereof projects to the side opposite to the refrigerant connection ports 4 and 5. Also, the second and third plates are
The outer shape is formed in a size that fits inside the drawn portion of the first plate. Reference numeral 7 is a groove formed in the second plate 2.

【0013】このような構成とする事により、前記各プ
レート1、2、3相互の位置決めを容易にすることがで
きる。
With this structure, it is possible to easily position the plates 1, 2, and 3 relative to each other.

【0014】図3は、本発明で使用する第2のプレート
2の一例を示す斜視図である。同図に示す如く、中央に
形成された半径Lの穴8から放射状に溝7が形成され、
突出部9によって仕切られている。
FIG. 3 is a perspective view showing an example of the second plate 2 used in the present invention. As shown in the figure, grooves 7 are formed radially from a hole 8 having a radius L formed in the center,
It is partitioned by the protruding portion 9.

【0015】図4は、本発明によるプレート型冷媒分流
器の一部を拡大した斜視図である。同図において、図1
ないし図3と同じものは、同じ符号を付けて示してあ
る。同図において、冷媒接続口4、5の各軸心間の距離
をR、冷媒接続口4の軸心と第2のプレート2の突出部
9の先端との距離をL1(図4(A))、L2(図4
(B))とする。
FIG. 4 is an enlarged perspective view of a part of the plate type refrigerant distributor according to the present invention. In FIG.
3 to 3 are designated by the same reference numerals. In the figure, the distance between the axes of the refrigerant connection ports 4 and 5 is R, and the distance between the axis of the refrigerant connection port 4 and the tip of the projecting portion 9 of the second plate 2 is L1 (FIG. 4A). ), L2 (Fig. 4
(B)).

【0016】いま、冷媒接続口4から冷媒を導入する
と、プレート型冷媒分流器に冷媒の供給圧が内圧として
作用する。この内圧は、第3のプレート3に曲げ力とし
て作用し、その最大主応力は、第2のプレート2の突出
部9の先端に作用する。この内圧と最大主応力の関係を
図5に示す。図5からも明らかなように、距離L2が小
さいほど最大主応力を低下させることができる。
Now, when the refrigerant is introduced from the refrigerant connection port 4, the supply pressure of the refrigerant acts on the plate-type refrigerant distributor as the internal pressure. This internal pressure acts on the third plate 3 as a bending force, and its maximum principal stress acts on the tip of the projecting portion 9 of the second plate 2. The relationship between this internal pressure and the maximum principal stress is shown in FIG. As is clear from FIG. 5, the smaller the distance L2 is, the more the maximum principal stress can be reduced.

【0017】前記のプレート型冷媒分流器において、突
出部9の先端位置をそれぞれ変えることにより、冷媒の
流れを変えることができ、冷媒の分配比率を設定するこ
とができる。
In the plate-type refrigerant distributor, the flow of the refrigerant can be changed and the distribution ratio of the refrigerant can be set by changing the tip positions of the projecting portions 9.

【0018】なお、前記突出部9を、冷媒接続口4、5
の内側に接続用の配管6の肉厚分だけ突出するように形
成すると、接続用の配管6を組み付ける際に位置決めが
容易になり作業性を向上させることができる。
The projection 9 is connected to the refrigerant connection ports 4, 5
If the pipe 6 for connection is formed so as to project inside by the thickness of the pipe 6 for connection, positioning can be facilitated when the pipe 6 for connection is assembled, and workability can be improved.

【0019】[0019]

【発明の効果】以上述べた如く、本発明によれば、中央
に大径の冷媒接続口が形成され、この冷媒接続口を中心
とする同心円上に複数の小径の冷媒接続口が形成され
外周部が前記冷媒接続口と反対側に突出するように絞り
加工が施された第1のプレートと、前記大径の冷媒接続
口に連通する穴が形成され、この穴から前記大径の冷媒
接続口と小径の冷媒接続口を接続する放射状の溝が形成
された、前記第1のプレートの絞り加工部分の内側に嵌
合する第2のプレートと、前記第1のプレートの絞り加
工部分の内側に嵌合する中実の第3のプレートとを設
け、これらのプレートを鑞材を介して重ね合わせ接合す
るようにしたので、前記各プレートは、板材をプレス加
工することにより容易に製造することができ、また、
れらのプレート相互の位置決めを容易に行え、熱処理炉
に入れることにより容易に鑞付けする事ができるので、
製造が容易であり、しかも安価に製造することができ
る。
As described above, according to the present invention, a large-diameter refrigerant connection port is formed in the center, and a plurality of small-diameter refrigerant connection ports are formed concentrically around the refrigerant connection port .
Squeeze the outer periphery so that it projects to the side opposite the refrigerant connection port.
A first plate that has been processed and a hole that communicates with the large diameter refrigerant connection port are formed, and a radial groove that connects the large diameter refrigerant connection port and the small diameter refrigerant connection port is formed from this hole. Fitted inside the drawn portion of the first plate
A second plate that case, aperture pressure of the first plate
Since a solid third plate that fits inside the work portion is provided and these plates are superposed and joined via the brazing material, each plate can be easily formed by pressing a plate material. It can be manufactured to, also, this
Since these plates can be easily positioned relative to each other and can be easily brazed by placing them in a heat treatment furnace,
It is easy to manufacture and can be manufactured at low cost.

【0020】また、前記第2のプレートに形成された穴
の径および溝の幅が前記大径の冷媒接続口と小径の冷媒
接続口に接続される冷媒配管の肉厚分だけ小さく形成し
たことにより、冷媒接続口に接続用の配管を設ける際
に、冷媒接続口に接続用の配管を第2のプレートに当接
するまで挿入するだけで位置決めできるので、組立てが
容易になる。
Further, the diameter of the hole and the width of the groove formed in the second plate are made smaller by the thickness of the refrigerant pipe connected to the large diameter refrigerant connection port and the small diameter refrigerant connection port. Thus, when the connecting pipe is provided in the refrigerant connection port, the connecting pipe can be positioned by merely inserting the connecting pipe into the refrigerant connection port until it comes into contact with the second plate, which facilitates the assembly.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明によるプレート型冷媒分流器の実施の形
態を示す斜視図。
FIG. 1 is a perspective view showing an embodiment of a plate-type refrigerant distributor according to the present invention.

【図2】本発明によるプレート型冷媒分流器の他の実施
の形態を示す側面断面図。
FIG. 2 is a side sectional view showing another embodiment of the plate-type refrigerant distributor according to the present invention.

【図3】図1におけるプレート型冷媒分流器の第2のプ
レートの一例を示す斜視図。
3 is a perspective view showing an example of a second plate of the plate-type refrigerant distributor in FIG. 1. FIG.

【図4】本発明によるプレート型冷媒分流器の一部を拡
大した斜視図。
FIG. 4 is an enlarged perspective view of a part of the plate-type refrigerant distributor according to the present invention.

【図5】本発明によるプレート型冷媒分流器の内圧と応
力の関係を示す特性図。
FIG. 5 is a characteristic diagram showing the relationship between internal pressure and stress in the plate-type refrigerant flow divider according to the present invention.

【符号の説明】[Explanation of symbols]

1 第1のプレート 2 第2のプレート 3 第3のプレート 4 冷媒接続口 5 冷媒接続口 6 接続用の配管 1st plate 2 Second plate 3rd plate 4 Refrigerant connection port 5 Refrigerant connection port 6 Connection piping

───────────────────────────────────────────────────── フロントページの続き (72)発明者 河村 太 静岡県清水市村松390番地 株式会社 日立製作所 空調システム事業部 内 (72)発明者 大西 孝典 静岡県清水市村松390番地 株式会社 日立製作所 空調システム事業部 内 (56)参考文献 特開 平5−172286(JP,A) 特開 平5−118774(JP,A) 特開 平7−332303(JP,A) 特開 平8−100963(JP,A) 特開 昭64−90971(JP,A) 特開 平7−149430(JP,A) 特開 平4−148167(JP,A) 特開 平3−96795(JP,A) (58)調査した分野(Int.Cl.7,DB名) F25B 41/00 F16L 41/02 F28D 9/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Futoshi Kawamura 390 Muramatsu, Shimizu City, Shizuoka Prefecture, Hitachi Air Conditioning Systems Division (72) Inventor Takanori Onishi 390 Muramatsu Shimizu City, Shizuoka Hitachi Air Conditioning Systems Co., Ltd. (56) References JP-A-5-172286 (JP, A) JP-A-5-118774 (JP, A) JP-A-7-332303 (JP, A) JP-A-8-100963 (JP, A) JP 64-90971 (JP, A) JP 7-149430 (JP, A) JP 4-148167 (JP, A) JP 3-96795 (JP, A) (58) Survey Fields (Int.Cl. 7 , DB name) F25B 41/00 F16L 41/02 F28D 9/02

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】中央に大径の冷媒接続口が形成され、この
冷媒接続口を中心とする同心円上に複数の小径の冷媒接
続口が形成され、外周部が前記冷媒接続口と反対側に突
出するように絞り加工が施された第1のプレートと、前
記大径の冷媒接続口に連通する穴が形成され、この穴か
ら前記大径の冷媒接続口と小径の冷媒接続口を接続する
放射状の溝が形成された、前記第1のプレートの絞り加
工部分の内側に嵌合する第2のプレートと、前記第1の
プレートの絞り加工部分の内側に嵌合する中実の第3の
プレートとを設け、これらのプレート鑞材を介して重
ね合わせ接合されたことを特徴とするプレート型冷媒分
流器。
1. A large-diameter refrigerant connection port is formed in the center, a plurality of small-diameter refrigerant connection ports are formed on a concentric circle centered on the refrigerant connection port, and an outer peripheral portion is opposite to the refrigerant connection port. Rush
A first plate that has been drawn so as to come out and a hole that communicates with the large diameter refrigerant connection port are formed, and the large diameter refrigerant connection port and the small diameter refrigerant connection port are connected from this hole. Squeezing of the first plate, in which radial grooves are formed.
A second plate fitted inside the working part, and the first plate
A plate-type refrigerant distributor, characterized in that a solid third plate that fits inside the drawn portion of the plate is provided, and these plates are superposed and joined via a brazing material.
【請求項2】前記第2のプレートに形成された穴の径お
よび溝の幅が前記大径の冷媒接続口と小径の冷媒接続口
に接続される冷媒配管の肉厚分だけ小さく形成されてい
ることを特徴とする請求項1に記載のプレート型冷媒分
流器。
2. The diameter of the hole and the width of the groove formed in the second plate are made smaller by the thickness of the refrigerant pipe connected to the large diameter refrigerant connection port and the small diameter refrigerant connection port. The plate-type refrigerant distributor according to claim 1, wherein the plate-type refrigerant distributor is provided.
JP02403496A 1996-02-09 1996-02-09 Plate type refrigerant flow divider Expired - Fee Related JP3405879B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02403496A JP3405879B2 (en) 1996-02-09 1996-02-09 Plate type refrigerant flow divider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02403496A JP3405879B2 (en) 1996-02-09 1996-02-09 Plate type refrigerant flow divider

Publications (2)

Publication Number Publication Date
JPH09217968A JPH09217968A (en) 1997-08-19
JP3405879B2 true JP3405879B2 (en) 2003-05-12

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ID=12127236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP02403496A Expired - Fee Related JP3405879B2 (en) 1996-02-09 1996-02-09 Plate type refrigerant flow divider

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JP (1) JP3405879B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3932733B2 (en) * 1999-09-22 2007-06-20 三菱電機株式会社 Refrigerant distributor
CH702760A1 (en) * 2010-02-25 2011-08-31 Glatt Maschinen & Appbau Ag Liquid distributor.
JP5867001B2 (en) * 2011-11-18 2016-02-24 株式会社大林組 Underground heat exchanger
CN103673423B (en) * 2013-12-17 2015-11-25 高娟 A kind of coolant flow divider of low pressure drop
CN103759089A (en) * 2013-12-23 2014-04-30 辽宁锦兴石油机械有限公司 Rotation pipeline connecting device
CN104154802B (en) * 2014-08-19 2016-08-17 珠海格力电器股份有限公司 Refrigerant flow dividing structure, microchannel shunt assembly, heat exchanger and air-conditioner
CN106403404A (en) * 2016-09-19 2017-02-15 广东志高空调有限公司 Household multi-union type air conditioner pipeline

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