JPH0810096B2 - Evaporator - Google Patents
EvaporatorInfo
- Publication number
- JPH0810096B2 JPH0810096B2 JP63268485A JP26848588A JPH0810096B2 JP H0810096 B2 JPH0810096 B2 JP H0810096B2 JP 63268485 A JP63268485 A JP 63268485A JP 26848588 A JP26848588 A JP 26848588A JP H0810096 B2 JPH0810096 B2 JP H0810096B2
- Authority
- JP
- Japan
- Prior art keywords
- flow
- transfer tube
- heat transfer
- refrigerant
- gas
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 description 16
- 239000012071 phase Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、主として空気調和機等に用いられ、気液二
相の冷媒を均等に分配する構成とする蒸発器に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evaporator mainly used in an air conditioner or the like and configured to evenly distribute a gas-liquid two-phase refrigerant.
従来の技術 冷凍サイクルを構成している蒸発器は、小型の場合に
は、冷媒の抵抗が少なく冷媒通路も一流路で良いが、大
型の場合には、冷媒の総流量が増し、一の流路では抵抗
が大きくなるため複数の流路にしなければならない。す
なわち、一般的な冷媒分流は、第２図に示すように冷媒
がＤ側より入り、入口側分流器12を通り、入口側伝熱管
11に分流され、熱交換器内を通り、出口側分流器２を経
てＣ側に導かれる。2. Description of the Related Art When the evaporator that constitutes a refrigeration cycle is small, the resistance of the refrigerant is small and only one flow path is required for the refrigerant, but when it is large, the total flow rate of the refrigerant increases and Since the road has a large resistance, it is necessary to use a plurality of flow paths. That is, as shown in FIG. 2, the general refrigerant distribution is such that the refrigerant enters from the D side, passes through the inlet side flow divider 12, and enters the inlet side heat transfer tube.
It is divided into 11 and passes through the heat exchanger, and is led to the C side through the outlet side flow divider 2.
従来の分流器の基本構成を第３図に示す。冷媒は、Ｄ
側より流入し、入口側分流器12内のコイルバネ４により
気液が混合され、Ｅ側へ伝熱管11より流出する。The basic structure of a conventional flow divider is shown in FIG. Refrigerant is D
The gas flows from the side, the gas-liquid is mixed by the coil spring 4 in the inlet side flow divider 12, and flows out from the heat transfer tube 11 to the side E.
発明が解決しようとする課題 しかしながら蒸発器入口の気液二相の冷媒では、分流
器が垂直である場合、第３図のプロペラ４による旋回流
の気液混合の効果は、分流器上部までは達しにくく、下
部に液相、上部に気相が流れやすく、不均一な分流状態
となってしまう。However, in the gas-liquid two-phase refrigerant at the evaporator inlet, when the flow distributor is vertical, the effect of gas-liquid mixing of the swirling flow by the propeller 4 in FIG. It is difficult to reach, and the liquid phase flows easily in the lower part and the gas phase flows in the upper part, resulting in a non-uniform shunt state.
そのため、熱交換器の能力を有効に発揮し得ず、現実
は、所定を確保するため、やや大きめの熱交換器を使用
しなければならない。Therefore, the ability of the heat exchanger cannot be effectively exhibited, and in reality, a slightly larger heat exchanger must be used in order to secure the predetermined value.
本発明は、上記課題に鑑み、熱交換器（蒸発器）を出
る冷媒の気液混合化をはかることを目的とするものであ
る。The present invention has been made in view of the above problems, and an object of the present invention is to achieve gas-liquid mixing of a refrigerant that exits a heat exchanger (evaporator).
課題を解決するための手段 そこで、上記課題を解決するための技術的な手段は、
蒸発器となる熱交換器の入口側より出口側の方が気相の
割合が大きいことを利用し、熱交換器の伝熱管内の出口
側に流体の流れと逆方向に連続的に縮小する絞り部を設
けたものである。Means for Solving the Problems Therefore, technical means for solving the above problems are
Utilizing the fact that the ratio of the gas phase is higher on the outlet side than on the inlet side of the heat exchanger that serves as an evaporator, and continuously reduces in the direction opposite to the flow of fluid at the outlet side in the heat exchanger tube of the heat exchanger. A diaphragm is provided.
作用 かかる構成とすることにより、作用は以下のようにな
る。Operation With this configuration, the operation is as follows.
冷媒の気体と液体の重量比は数十倍から数百倍であ
り、気液二相の分離は偏流の大きな理由の１つである。
熱交換気の出口側に絞り部を設けることで流量の多い流
路を絞ると、流量の少ない流路に多くの冷媒が流れ込
み、この流路を絞ることでまた流量の少ない次の流路に
多くの冷媒が流れ込む。このようにして、熱交換器の伝
熱管の出口側に絞り部を設けることで、冷媒を均等に分
流することができる。The weight ratio of the gas to the liquid of the refrigerant is several tens to several hundreds of times, and the separation of the gas-liquid two phases is one of the main reasons for the uneven flow.
When a flow passage with a large flow rate is throttled by providing a throttle on the outlet side of the heat exchange air, a large amount of refrigerant flows into the flow passage with a low flow rate, and by narrowing this flow passage to the next flow passage with a small flow rate. Many refrigerants flow in. In this way, by providing the throttle portion on the outlet side of the heat transfer tube of the heat exchanger, the refrigerant can be evenly divided.
実施例 以下、本発明の実施例を第１図に基づいて説明する。Embodiment An embodiment of the present invention will be described below with reference to FIG.
同図において１は蒸発器となる熱交換器の出口側伝熱
管、２は出口側分流器、３は出口側伝熱管１内に設けら
れ、出口側分流器２の熱交換器側（Ａ側）接続管の径を
流体の流れ方向と逆方向に連続的に細くなるように形成
した絞り部である。In the figure, 1 is an outlet-side heat transfer tube of a heat exchanger serving as an evaporator, 2 is an outlet-side flow distributor, 3 is provided in the outlet-side heat transfer tube 1, and a heat-exchanger side (A side) of the outlet-side flow distributor 2 is provided. ) A constriction part formed so that the diameter of the connecting pipe is continuously reduced in the direction opposite to the flow direction of the fluid.
上記構成によれば、熱交換器の出口側であるＡ側から
流入した流体は絞り部３を通り、出口側分流器２内のＢ
で合流し、Ｃ側へ導かれる。Ａ側より流入する冷媒は、
絞り部３による絞り効果により、ここで圧力損失を生じ
る。気相と液相との圧力損失を比較した場合、体積速度
の速い気相の方が著しく大きい。これにより仮に偏流が
生じていても、気相部の多い流路は圧力損失が大きいた
め、気相部は他流器へと流れ込む。これにより、冷媒は
略均等に分流される。According to the above configuration, the fluid flowing in from the A side, which is the outlet side of the heat exchanger, passes through the constriction portion 3 and passes through the B in the outlet side flow divider 2.
Merges at and is led to the C side. The refrigerant flowing from the A side is
Due to the throttling effect of the throttling portion 3, a pressure loss occurs here. When the pressure loss between the gas phase and the liquid phase is compared, the gas phase with a high volume velocity is significantly larger. As a result, even if a drift occurs, the flow path with many gas phase portions has a large pressure loss, so the gas phase portions flow into the other flow vessel. As a result, the refrigerant is divided almost evenly.
また、蒸発器の出口側分流器２の加工の際、バルジ加
工等にて絞り部３を成形することは極めて容易であり、
量産性に適した分流器となり得る。Further, when processing the outlet side flow divider 2 of the evaporator, it is extremely easy to form the narrowed portion 3 by bulging or the like,
It can be a shunt suitable for mass production.
発明の効果 上記実施例より明らかなように本発明は、蒸発器の伝
熱管内の出口側に設けた絞り部により、伝熱管内を流れ
る冷媒の二相状態を良好にし、熱交換器の性能を一層引
き出す作用を助長する効果を有する。EFFECTS OF THE INVENTION As is clear from the above embodiments, the present invention makes the two-phase state of the refrigerant flowing in the heat transfer tube good by the throttle portion provided on the outlet side in the heat transfer tube of the evaporator, and improves the performance of the heat exchanger. Has the effect of promoting the action of further eliciting.
第１図は本発明の実施例の分流器とそれに接続される伝
熱管の断面図、第２図は分流器を具備した熱交換器の要
部斜視図、第３図は従来例を示す分流器の断面図であ
る。 １……出口側伝熱管、２……出口側分流器、３……絞り
部。FIG. 1 is a sectional view of a flow distributor according to an embodiment of the present invention and a heat transfer tube connected thereto, FIG. 2 is a perspective view of a main part of a heat exchanger having a flow distributor, and FIG. It is sectional drawing of a container. 1 ... Exit side heat transfer tube, 2 ... Exit side flow divider, 3 ... Throttling part.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−147196（ＪＰ，Ａ) 実開 昭56−148572（ＪＰ，Ｕ) 実開 昭61−74074（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-147196 (JP, A) Actually opened 56-148572 (JP, U) Actually opened 61-74074 (JP, U)
Claims (1)
流動するフィンと、前記フィンに密着した内部を流体が
通過する伝熱管と、前記伝熱管の流体の入口側と出口側
とに接続される分流器とからなり、前記伝熱管内の出口
側に流体の流れと逆方向に連続的に縮小する絞り部を設
けた蒸発器。1. Fins in which gas is flowed between the fins arranged in parallel at regular intervals, a heat transfer tube through which a fluid passes through the inside closely contacting the fins, and a fluid inlet side and an outlet side of the heat transfer tube are connected. And an evaporator provided with a throttle portion that continuously reduces in the direction opposite to the fluid flow on the outlet side in the heat transfer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268485A JPH0810096B2 (en) | 1988-10-25 | 1988-10-25 | Evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63268485A JPH0810096B2 (en) | 1988-10-25 | 1988-10-25 | Evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02115667A JPH02115667A (en) | 1990-04-27 |
| JPH0810096B2 true JPH0810096B2 (en) | 1996-01-31 |
Family
ID=17459150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63268485A Expired - Fee Related JPH0810096B2 (en) | 1988-10-25 | 1988-10-25 | Evaporator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810096B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148572U (en) * | 1980-04-09 | 1981-11-09 | ||
| JPS6174074U (en) * | 1984-10-22 | 1986-05-19 | ||
| JPS62147196A (en) * | 1985-12-18 | 1987-07-01 | Toyo Seikan Kaisha Ltd | Liquefied gas adder |
-
1988
- 1988-10-25 JP JP63268485A patent/JPH0810096B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02115667A (en) | 1990-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6179051B1 (en) | Distributor for plate heat exchangers | |
| CN100538249C (en) | Small channel heat exchanger with reduced size headers | |
| US7967061B2 (en) | Mini-channel heat exchanger header | |
| JP2004510947A (en) | Heat exchanger with orifice partition for flow distribution | |
| EP1031801A3 (en) | Heat exchanger | |
| JPH04295599A (en) | Heat exchanger | |
| JP4084883B2 (en) | Gas-liquid two-phase distributor | |
| US6679083B1 (en) | Opposed slant tube diabatic sorber | |
| JPH0331665A (en) | flow divider | |
| Thonon et al. | Compact multifunctional heat exchangers: a pathway to process intensification | |
| JPH03177761A (en) | Heat exchanger | |
| JPH0810096B2 (en) | Evaporator | |
| JPS6214751B2 (en) | ||
| JPH06103134B2 (en) | Evaporator | |
| JP3083385B2 (en) | Heat exchanger | |
| JP2574488B2 (en) | Heat exchanger | |
| JP2820428B2 (en) | Refrigerant flow divider | |
| JPH0367968A (en) | Heat exchanger for condensing refrigerant | |
| JPS63161360A (en) | Refrigeration cycle | |
| JP3326930B2 (en) | Refrigerant shunt | |
| CN223345698U (en) | Serpentine tube type variable split flow heat exchanger and air conditioning system | |
| JPS63131965A (en) | Air conditioner | |
| JPS62147296A (en) | Heat exchanger with fins | |
| JPH04263793A (en) | Heat exchanger | |
| CN216204501U (en) | Refrigerant distribution structure and heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |