JPH0345871A - Refrigerant flow divider for freezing circuit - Google Patents
Refrigerant flow divider for freezing circuitInfo
- Publication number
- JPH0345871A JPH0345871A JP1175744A JP17574489A JPH0345871A JP H0345871 A JPH0345871 A JP H0345871A JP 1175744 A JP1175744 A JP 1175744A JP 17574489 A JP17574489 A JP 17574489A JP H0345871 A JPH0345871 A JP H0345871A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- flow
- flow path
- refrigerant flow
- flow passage
- 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.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 131
- 230000008014 freezing Effects 0.000 title 1
- 238000007710 freezing Methods 0.000 title 1
- 238000005057 refrigeration Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は冷媒を複数の蒸発器等に分流する冷凍回路の冷
媒分流器に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a refrigerant flow divider for a refrigeration circuit that divides refrigerant to a plurality of evaporators and the like.
（従来の技術）
従来、自動販売機の複数の冷却室を冷却する冷凍回路と
して第２図に示すものが知られている。(Prior Art) Conventionally, a refrigeration circuit shown in FIG. 2 is known as a refrigeration circuit for cooling a plurality of cooling chambers of a vending machine.
この冷凍回路は圧縮機１の冷媒を凝縮器２に流して凝縮
し、この凝縮液冷媒をキャピラリチューブ３に流して減
圧し、更に、この減圧冷媒を冷媒分流器４を介して複数
の蒸発器５に流して蒸発させ、しかる後圧縮機１に戻す
ようになっている。In this refrigeration circuit, refrigerant from a compressor 1 is passed through a condenser 2 to be condensed, this condensed liquid refrigerant is passed through a capillary tube 3 to reduce the pressure, and the reduced pressure refrigerant is then passed through a refrigerant flow divider 4 to a plurality of evaporators. 5 for evaporation, and then returned to the compressor 1.
この冷媒分流器４は、第３図に示すようにタンク状に形
成し、その上端にはキャピラリチューブ３に連通ずる冷
媒流入リードパイプロを連結し、下端には各蒸発器５に
連通し並列に配列された複数の冷媒流出リードパイプ７
ａ、７ｂ、７ｃ、７ｄを連結したものである（実開昭６
２−１００４７２号）。The refrigerant flow divider 4 is formed into a tank shape as shown in FIG. 3, and has a refrigerant inflow lead pipe connected to the capillary tube 3 at its upper end, and connected to each evaporator 5 in parallel at its lower end. A plurality of refrigerant outflow lead pipes 7 arranged in
It is a combination of a, 7b, 7c, and 7d.
No. 2-100472).
（発明が解決しようとする課題）
この冷凍回路の冷媒分流器４においては、冷媒流入リー
ドパイプロ及び各冷媒流出リードパイプ７ａ、７ｂ、７
ｃ、７ｄが垂直上下方向に延びるよう配置しなければな
らない。即ち、第３図に示すように、この各バイブロ、
７ａ、７ｂ、７ｃ。(Problems to be Solved by the Invention) In the refrigerant flow divider 4 of this refrigeration circuit, a refrigerant inflow lead pipe and each refrigerant outflow lead pipe 7a, 7b, 7
c and 7d must be arranged so that they extend vertically in the up and down direction. That is, as shown in FIG. 3, each vibro,
7a, 7b, 7c.
７ｄが傾斜して配置されるときは、冷媒分流器４内に溜
る冷媒が重力により下部側に位置する冷媒流出リードパ
イプ７ａ、７ｂに集中的に流れ、冷媒の片流れを起すか
らである。7d is arranged at an angle, the refrigerant accumulated in the refrigerant flow divider 4 flows intensively into the refrigerant outflow lead pipes 7a and 7b located on the lower side due to gravity, causing a one-sided flow of the refrigerant.
しかしながら、この冷媒分流器４を誤差なく冷凍回路中
に組付けるためには、高精度の組付は作業が要求される
し、また、この冷媒分流器４を誤差なく組付けたとして
も、この冷媒分流器４がタンク状に形成されその容積が
大きくなっていることから、冷媒分流器４内に噴出され
る冷媒がこのタンク内で大きく揺動し、これまた冷媒の
片流れの大きな原因となっていた。However, in order to assemble this refrigerant flow divider 4 into the refrigeration circuit without error, high-precision assembly work is required, and even if this refrigerant flow divider 4 is assembled without error, this Since the refrigerant flow divider 4 is formed into a tank shape and has a large volume, the refrigerant jetted into the refrigerant flow divider 4 oscillates greatly within the tank, which is also a major cause of one-sided flow of refrigerant. was.
本発明の目的は前記従来の問題点に鑑み、冷媒の片流れ
を起すことなく、所定量の冷媒を確実に流出することが
できる冷凍回路の冷媒分流器を提供することにある。SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a refrigerant flow divider for a refrigeration circuit that can reliably flow out a predetermined amount of refrigerant without causing one-sided flow of refrigerant.
（課題を解決するための手段）
本発明は前記目的を達成するため、冷媒流入リードパイ
プと複数の冷媒流出リードパイプとを連通させ、該冷媒
流入り−ドパイブの冷媒を該各冷媒流出リードパイプに
分流する冷凍回路の冷媒分流器において、前記冷媒流入
リードパイプの出口側には第１の冷媒流路を設けるとと
もに、前記各冷媒流出リードパイプの入口側には該第１
の冷媒流路の先端に連通する第２の冷媒流路をそれぞれ
設け、該各第２の冷媒流路は該第１の冷媒流路に対して
直角で、かつ、等間隔に配置し、該各冷媒流路の流通断
面積はそれぞれ対応する該各リードパイプの流通断面積
より小さく形成した。(Means for Solving the Problems) In order to achieve the above object, the present invention communicates a refrigerant inflow lead pipe with a plurality of refrigerant outflow lead pipes, and transfers the refrigerant from the refrigerant inflow to the refrigerant outflow lead pipes to each refrigerant outflow lead pipe. In a refrigerant flow divider for a refrigeration circuit, a first refrigerant flow path is provided on the outlet side of the refrigerant inflow lead pipe, and a first refrigerant flow path is provided on the inlet side of each refrigerant outflow lead pipe.
a second refrigerant flow path communicating with the tip of the refrigerant flow path, each second refrigerant flow path being perpendicular to the first refrigerant flow path and arranged at equal intervals; The flow cross-sectional area of each refrigerant flow path was formed to be smaller than the flow cross-sectional area of each corresponding lead pipe.
（作 用）
本発明によれば、冷媒流入リードパイプから流出する冷
媒は第１の冷媒流路を介して各第２の冷媒流路の入口側
に吐出される。このとき、第２の冷媒流路が第１の冷媒
流路に対して直角で、かつ、等間隔に配置されているか
ら、第１の冷媒流路から流れる冷媒が均等に各第２の冷
媒流路に向って流れる。(Function) According to the present invention, the refrigerant flowing out from the refrigerant inflow lead pipe is discharged to the inlet side of each second refrigerant flow path via the first refrigerant flow path. At this time, since the second refrigerant flow path is perpendicular to the first refrigerant flow path and is arranged at equal intervals, the refrigerant flowing from the first refrigerant flow path is evenly distributed to each second refrigerant flow path. Flows toward the channel.
また、各冷媒流路の流通断面積がそれぞれ対応する各リ
ードパイプの流通断面積より小さくなっているから、冷
媒の流速が速くなるとともに、冷媒が各冷媒流路内で揺
動することがない。従って、冷媒分流器を傾けて取付け
ている場合にあっても、重力の影響に伴なう不均一な流
れが減少し、冷媒流量の誤差が極めて小さくなる。In addition, since the flow cross-sectional area of each refrigerant flow path is smaller than the flow cross-sectional area of each corresponding lead pipe, the flow rate of the refrigerant becomes faster and the refrigerant does not oscillate within each refrigerant flow path. . Therefore, even if the refrigerant flow divider is installed at an angle, uneven flow due to the influence of gravity is reduced, and errors in the refrigerant flow rate are extremely reduced.
（実施例）
第１図及び第４′図は本発明に係る冷凍回路の冷媒分流
器で、従来例と同様にキャピラリチューブからの冷媒を
複数の蒸発器に分流するようになっている。(Embodiment) Figures 1 and 4' show a refrigerant flow divider for a refrigeration circuit according to the present invention, which divides refrigerant from a capillary tube to a plurality of evaporators as in the conventional example.
この冷媒分流器１０は偏平円柱状に形成し、その上部中
央には上下に延びる第１のパイプ挿入穴１１を形成し、
また、その下部寄りには周縁から中心寄りに水平に延び
る第２のパイプ挿入穴１２を等間隔に４個形成している
。この第１のパイプ挿入穴１１にはキャピラリチューブ
に連通する冷媒流入リードパイプ（以下、流入パイプと
いう）１３の出口側が挿入ろう付けされている。第２の
バイブ挿入穴１２には各蒸発器にそれぞれ連通する冷媒
流出リードパイプ（以下、流出パイプという）１４の入
口側が挿入ろう付けされている。This refrigerant flow divider 10 is formed in the shape of a flat cylinder, and a first pipe insertion hole 11 extending vertically is formed in the center of the upper part.
Moreover, four second pipe insertion holes 12 extending horizontally from the periphery toward the center are formed at equal intervals near the bottom thereof. The outlet side of a refrigerant inflow lead pipe (hereinafter referred to as an inflow pipe) 13 communicating with the capillary tube is inserted into the first pipe insertion hole 11 and brazed therein. The inlet side of a refrigerant outflow lead pipe (hereinafter referred to as an outflow pipe) 14 communicating with each evaporator is inserted into the second vibe insertion hole 12 and brazed therein.
この冷媒分流器１ｏ中で、流入パイプ１３の出口側下方
には、上端がこの流入パイプ１３の下端中央に臨む第１
の冷媒流路（以下、第１流路という）１５が形成され、
また、各流出バイブ１４の入口側前方には、一端が各流
出バイブ１４の先端の中央に鴎む同形状の第２の冷媒流
路（以下、第２の流路という）１６が形成されている。In this refrigerant flow divider 1o, a first pipe whose upper end faces the center of the lower end of the inflow pipe 13 is located below the outlet side of the inflow pipe 13.
A refrigerant flow path (hereinafter referred to as a first flow path) 15 is formed,
Further, a second refrigerant flow path (hereinafter referred to as a second flow path) 16 having the same shape and having one end located in the center of the tip of each outflow vibrator 14 is formed in front of the inlet side of each outflow vibrator 14. There is.
また、この各第２流路１６は等間隔に配列され、その各
他端が冷媒分流器１ｏの中心軸上で交わるとともに、こ
の交点部分１７に第１流路１５が交わり、第１流路１５
を流れる冷媒が各第２流路１６に噴出されるようになっ
ている。更に、この第１流路１５の径は流入パイプ１３
の内径よりも小さく、各第２流路１６の径は流出バイブ
１４の内径よりも小さくなっている。The second flow paths 16 are arranged at equal intervals, and their other ends intersect on the central axis of the refrigerant flow divider 1o, and the first flow path 15 intersects at this intersection portion 17. 15
The refrigerant flowing therein is spouted into each second flow path 16. Furthermore, the diameter of this first flow path 15 is equal to that of the inflow pipe 13.
The diameter of each second flow path 16 is smaller than the inner diameter of the outflow vibe 14.
本実施例によれば、キャピラリチューブにて減圧された
冷媒が流入パイプ１３を介して冷媒分流器１０内に圧送
される。この圧送された冷媒は第１流路１５内を流れ、
更に交点部分１７で四方に飛散し各第２流路１６内に流
れる。この各第２流路１６内の冷媒は各流出パイプ１４
を介して各蒸発器に流れる。According to this embodiment, the refrigerant whose pressure has been reduced in the capillary tube is fed under pressure into the refrigerant flow divider 10 via the inflow pipe 13. This pressure-fed refrigerant flows in the first flow path 15,
Furthermore, it scatters in all directions at the intersection portion 17 and flows into each second flow path 16 . The refrigerant in each second flow path 16 flows through each outflow pipe 14.
to each evaporator.
このような冷媒分流器１０内の冷媒の流れにおいて、各
第２流路１６が第１流路１５に対して直角で、かつ、等
間隔で配置されているから、第１流路１５から流出する
冷媒が均等に各第２流路１６に流れ、各蒸発器に同量の
冷媒を流すことができる。In such a flow of refrigerant in the refrigerant flow divider 10, since each second flow path 16 is arranged at right angles to the first flow path 15 and at equal intervals, the refrigerant flows out from the first flow path 15. The refrigerant flows equally into each second flow path 16, and the same amount of refrigerant can flow into each evaporator.
また、各流路１５．１６の径が各パイプ１３゜１４の内
径より小さくしているため、第１流路１５と第２流路１
６との冷媒流通断面が小さくなる。これにより、冷媒が
各流路１５，１６内で揺動することがなく、また各流路
１５．１６内における冷媒の流速が速くなる。従って、
この冷媒分流器１０が傾いて取付けられている場合にあ
っても、重力の影響に伴なう不均一な流れが減少し、各
流出パイプ１４に流れる冷媒量の誤差が極めて小さくな
る。In addition, since the diameter of each flow path 15.16 is smaller than the inner diameter of each pipe 13.14, the first flow path 15 and the second flow path 1
6 becomes smaller. This prevents the refrigerant from swinging within each of the flow paths 15 and 16, and increases the flow rate of the refrigerant within each of the flow paths 15 and 16. Therefore,
Even if this refrigerant flow divider 10 is installed at an angle, uneven flow due to the influence of gravity is reduced, and errors in the amount of refrigerant flowing into each outflow pipe 14 are extremely small.
また、この各第２流路１６を各蒸発器の容量に合せてそ
の径を変えるときは、その径の変化に対応して各第２流
路１６の冷媒量も変化するが、本実施例によれば、第２
流路１５の冷媒が各第２流路１６に向って均等に飛散す
るから、この径の変更により冷媒量の制御も適確に行な
うことができる。Furthermore, when changing the diameter of each second flow path 16 according to the capacity of each evaporator, the amount of refrigerant in each second flow path 16 also changes in accordance with the change in diameter. According to the second
Since the refrigerant in the flow path 15 is evenly scattered toward each second flow path 16, the amount of refrigerant can also be accurately controlled by changing the diameter.
（発明の効果）
以上説明したように、本発明によれば、第１の冷媒流路
から流れる冷媒が均等に各第２の冷媒流路に向って流れ
ることは勿論のこと、各冷媒流路内の揺動が防止される
とともに、冷媒流速が速くなるため、冷媒分流器が傾い
て取付けられている場合においても、各冷媒流出リード
パイプの冷媒流量の誤差が極めて小さく、冷媒を均等に
分流することができる。更に、このように第１の冷媒流
路の冷媒が各第２の冷媒流路に向って均等に飛散するか
ら、この各第２の冷媒流路の流通断面積を変えることに
よる流量制御も適確に行なうことができる。(Effects of the Invention) As described above, according to the present invention, the refrigerant flowing from the first refrigerant flow path not only flows uniformly toward each second refrigerant flow path, but also allows each refrigerant flow path to This prevents internal vibration and increases the refrigerant flow rate, so even if the refrigerant divider is installed at an angle, the error in the refrigerant flow rate of each refrigerant outlet lead pipe is extremely small, and the refrigerant is evenly distributed. can do. Furthermore, since the refrigerant in the first refrigerant flow path is evenly scattered toward each of the second refrigerant flow paths, flow rate control by changing the flow cross-sectional area of each of the second refrigerant flow paths is also suitable. It can be done accurately.
第１図及び第４図は本発明の一実施例を示すもので、第
１図は冷媒分流器の断面図、第２図は自動販売機の冷凍
回路図、第３図は従来の冷媒分流器の断面図、第４図は
第１図のＩＶ−ＩＶ線矢視方向の断面図である。
図中、１０・・・冷媒分流器、１３・・・冷媒流入リー
ドパイプ、１４・・・冷媒流出リードパイプ、１５−１
゜第１の冷媒流路、１６・・・第２の冷媒流路。Figures 1 and 4 show an embodiment of the present invention. Figure 1 is a cross-sectional view of a refrigerant flow divider, Figure 2 is a refrigeration circuit diagram of a vending machine, and Figure 3 is a conventional refrigerant flow divider. A cross-sectional view of the vessel, FIG. 4 is a cross-sectional view taken along the line IV--IV in FIG. 1. In the figure, 10... Refrigerant flow divider, 13... Refrigerant inflow lead pipe, 14... Refrigerant outflow lead pipe, 15-1
゜First refrigerant flow path, 16... second refrigerant flow path.
Claims (1)
を連通させ、該冷媒流入リードパイプの冷媒を該各冷媒
流出リードパイプに分流する冷凍回路の冷媒分流器にお
いて、 前記冷媒流入リードパイプの出口側には第１の冷媒流路
を設けるとともに、前記各冷媒流出リードパイプの入口
側には該第１の冷媒流路の先端に連通する第２の冷媒流
路をそれぞれ設け、該各第２の冷媒流路は該第１の冷媒
流路に対して直角で、かつ、等間隔に配置し、該各冷媒
流路の流通断面積はそれぞれ対応する該各リードパイプ
の流通断面積より小さく形成した ことを特徴とする冷凍回路の冷媒分流器。[Scope of Claims] A refrigerant flow divider for a refrigeration circuit that communicates a refrigerant inflow lead pipe with a plurality of refrigerant outflow lead pipes, and divides the refrigerant of the refrigerant inflow lead pipe into each of the refrigerant outflow lead pipes, comprising: A first refrigerant flow path is provided on the outlet side of the lead pipe, and a second refrigerant flow path that communicates with the tip of the first refrigerant flow path is provided on the inlet side of each refrigerant outflow lead pipe, Each of the second refrigerant flow paths is arranged at right angles to the first refrigerant flow path and at equal intervals, and the flow cross-sectional area of each of the refrigerant flow paths is equal to the flow cross-section of each corresponding lead pipe. A refrigerant flow divider for a refrigeration circuit, characterized in that it is formed smaller than its area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1175744A JPH0345871A (en) | 1989-07-10 | 1989-07-10 | Refrigerant flow divider for freezing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1175744A JPH0345871A (en) | 1989-07-10 | 1989-07-10 | Refrigerant flow divider for freezing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345871A true JPH0345871A (en) | 1991-02-27 |
Family
ID=16001490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1175744A Pending JPH0345871A (en) | 1989-07-10 | 1989-07-10 | Refrigerant flow divider for freezing circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345871A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257339A (en) * | 1996-03-26 | 1997-10-03 | Hitachi Ltd | Refrigerant flow divider and manufacturing method thereof |
| US9041406B2 (en) | 2012-07-02 | 2015-05-26 | Denso Corporation | Insulation deterioration detection apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6322568B2 (en) * | 1984-03-19 | 1988-05-12 | Fujitsu Ltd |
-
1989
- 1989-07-10 JP JP1175744A patent/JPH0345871A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6322568B2 (en) * | 1984-03-19 | 1988-05-12 | Fujitsu Ltd |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09257339A (en) * | 1996-03-26 | 1997-10-03 | Hitachi Ltd | Refrigerant flow divider and manufacturing method thereof |
| US9041406B2 (en) | 2012-07-02 | 2015-05-26 | Denso Corporation | Insulation deterioration detection apparatus |
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