JPS6250743B2 - - Google Patents
Info
- Publication number
- JPS6250743B2 JPS6250743B2 JP17790983A JP17790983A JPS6250743B2 JP S6250743 B2 JPS6250743 B2 JP S6250743B2 JP 17790983 A JP17790983 A JP 17790983A JP 17790983 A JP17790983 A JP 17790983A JP S6250743 B2 JPS6250743 B2 JP S6250743B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- pipe
- bar
- outlet
- heat exchanger
- 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
Links
- 239000003507 refrigerant Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はフレオン冷媒等を使用する空気調和機
の熱交換器に関し、性能向上をはかるものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a heat exchanger for an air conditioner using Freon refrigerant or the like, and is intended to improve the performance.
従来のこの種熱交換器は第1図に示す如く熱交
換器のパイプ1が入口から出口に至るまで製作容
易にするために同一内径のものであつた。かかる
構造のものにおいて冷媒がガス化あるいは液化す
る間に冷媒流速が10:1以上に変化し冷媒側の熱
伝達率が入口側と出口側とで異なり(約2:1)
したがつてその間の熱交換量が不均一となり性能
低下をもたらしていた。
In the conventional heat exchanger of this kind, as shown in FIG. 1, the pipe 1 of the heat exchanger has the same inner diameter from the inlet to the outlet in order to facilitate manufacturing. In such a structure, the refrigerant flow rate changes by 10:1 or more while the refrigerant is gasified or liquefied, and the heat transfer coefficient on the refrigerant side differs between the inlet side and the outlet side (approximately 2:1).
Therefore, the amount of heat exchanged between them becomes non-uniform, resulting in a decrease in performance.
本発明は上記欠点を除去するものである。 The present invention eliminates the above drawbacks.
すなわち、冷媒状態に合せ冷媒の流速を変える
べくパイプ内に径の異なるバーを挿入することに
より改良を行つたものである。
That is, an improvement was made by inserting bars with different diameters into the pipe in order to change the flow rate of the refrigerant depending on the refrigerant condition.
以下本発明の実施例を凝縮器を例にとつて第2
図、第3図により説明する。3はフイン、4は冷
媒用パイプ、5は入口、6は出口、7はパイプ4
内に挿入したバーでありその端面8を先細でパイ
プ4の冷媒流通面積を出口6側に向つてせばめる
ようにテーパーをつけて次第に外径を大にしてあ
る。とともに、図示の如く、液成分の多い出口6
側のパイプ4内に挿入されたバー7ほど外径の大
きなものとしている。
Hereinafter, a second embodiment of the present invention will be explained using a condenser as an example.
This will be explained with reference to FIG. 3 is a fin, 4 is a refrigerant pipe, 5 is an inlet, 6 is an outlet, 7 is a pipe 4
It is a bar inserted inside, and its end face 8 is tapered so as to narrow the refrigerant flow area of the pipe 4 toward the outlet 6 side, and its outer diameter gradually increases. At the same time, as shown in the figure, an outlet 6 with a large amount of liquid component
The bar 7 inserted into the pipe 4 on the side has a larger outer diameter.
かかる構造によれば入口5側では従来通り冷媒
が高温で温度差があるので熱交換量が大である
が、出口6側でも流速が大きくなるので冷媒流速
が大きくなるため熱交換量が大きく得られる。こ
の場合冷媒の圧力損失は従来のもので入口5側の
ガス域に対して出口6側の液域は10分の1程度で
あるので断面積が2分の1に減少されても冷媒の
圧力損失増加の影響はほとんどなく、却つてパイ
プ内壁を充分に満して流れるので損失は全く無と
考えてよい。バー7に関しては端面を先細にして
あるが、これにより流れ整流化して圧損の増加を
防止するほか冷媒乱れの音発生を防止できる。又
はバー7は冷媒用パイプ4の直線部に設けて挿
入、加工等の製作を容易にするほか冷媒により振
動されるのを防止すべくプラスチツク製でひれを
容易に設け、容易に挿入支持できるようにしてあ
る。 According to this structure, on the inlet 5 side, the refrigerant is at a high temperature and there is a temperature difference, so the amount of heat exchange is large, but the flow rate is also high on the outlet 6 side, so the refrigerant flow rate is increased, so the amount of heat exchange is large. It will be done. In this case, the pressure loss of the refrigerant is conventional, and the liquid area on the outlet 6 side is about 1/10 of the gas area on the inlet 5 side, so even if the cross-sectional area is reduced to 1/2, the refrigerant pressure There is almost no effect of increased loss, and on the contrary, it can be considered that there is no loss at all because the flow sufficiently fills the inner wall of the pipe. The end face of the bar 7 is tapered, which not only rectifies the flow and prevents an increase in pressure loss but also prevents the generation of noise from turbulence of the refrigerant. Alternatively, the bar 7 is provided on the straight part of the refrigerant pipe 4 to facilitate insertion, processing, etc., and to prevent it from being vibrated by the refrigerant, the bar 7 is easily provided with fins made of plastic so that it can be easily inserted and supported. It is set as.
第4図は別な実施例であつて既製の銅パイプま
たはアルミパイプ等の金属物を想定し、両端をめ
くらに仕上げ径の異なる複数本の中空のバー9,
10,11を出口6側に向つて段ごとに径を大き
くして配置したものであり第2図と同様な効果が
得られるほか、既製のパイプで容易に実現できる
特徴がある。尚、本実施例は上記の性能向上効果
に加えて、めくらのバーを使用することにより冷
媒用パイプの内容積が少なくなるので必要冷媒量
が少なくできるほか、そのために圧縮機内の冷凍
機油の減少も防止できるなど波及効果が極めて大
である。 FIG. 4 shows another embodiment, in which a metal object such as a ready-made copper pipe or aluminum pipe is assumed, and a plurality of hollow bars 9 with different finishing diameters are formed with both ends blind.
10 and 11 are arranged with the diameter increasing in stages toward the outlet 6 side, and in addition to obtaining the same effect as shown in FIG. 2, it also has the feature that it can be easily realized with a ready-made pipe. In addition to the above-mentioned performance improvement effect, this embodiment reduces the internal volume of the refrigerant pipe by using a blind bar, which reduces the amount of refrigerant required. The ripple effect is extremely large, as it can also prevent
以上説明したように本発明によれば冷媒用パイ
プの内部に、液成分が多くなる方向に外径の大き
くなるとともに、液成分の多いパイプ内ほど外径
の大きいバーを挿入したので、簡単にきめ細かに
冷媒側熱伝達率を高め熱交換器全体が均一で高い
性能が得られるほか、冷媒量を少なくでき冷凍機
油不足による圧縮機のロツク事故も防止できるな
ど波及効果のある空気調和機の熱交換器を得るこ
とができる。
As explained above, according to the present invention, a bar is inserted inside the refrigerant pipe, the outer diameter of which increases in the direction in which the liquid component increases, and the outer diameter of which increases as the liquid component increases. In addition to finely increasing the heat transfer coefficient on the refrigerant side and achieving uniform high performance throughout the heat exchanger, it also reduces the amount of refrigerant and prevents compressor lock-up accidents due to lack of refrigerating machine oil. You can get an exchanger.
第1図は従来の熱交換器の略正面断面図、第2
図は本発明の熱交換器の略正面断面図、第3図は
第2図のA−A断面図、第4図は本発明の別な実
施例を示す熱交換器の略正面断面図、第5図は第
4図のB−B断面図である。
3……フイン、4……冷媒用パイプ、5……入
口、6……出口、7……バー、8……端面、9,
10,11……バー。
Figure 1 is a schematic front sectional view of a conventional heat exchanger;
The figure is a schematic front sectional view of the heat exchanger of the present invention, FIG. 3 is a sectional view taken along the line AA in FIG. 2, and FIG. 4 is a schematic front sectional view of a heat exchanger showing another embodiment of the present invention. FIG. 5 is a sectional view taken along line BB in FIG. 4. 3... Fin, 4... Refrigerant pipe, 5... Inlet, 6... Outlet, 7... Bar, 8... End face, 9,
10,11...bar.
Claims (1)
流れる冷媒の液域に挿入されたバーとを備え、該
バーが、前記液域の液成分が多くなる方向に外径
が大きくなるテーパーに形成され、且つ、該バー
が、前記液成分の多いパイプ内ほど外径が大きい
ことを特徴とする空気調和機の熱交換器。1 Comprising a plurality of pipes with the same inner diameter and a bar inserted into a liquid region of a refrigerant flowing inside the pipe, the bar is tapered so that the outer diameter increases in the direction in which the liquid component in the liquid region increases. A heat exchanger for an air conditioner, wherein the bar has an outer diameter larger in the pipe where the liquid component is larger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17790983A JPS5977273A (en) | 1983-09-28 | 1983-09-28 | Heat exchanger for air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17790983A JPS5977273A (en) | 1983-09-28 | 1983-09-28 | Heat exchanger for air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5977273A JPS5977273A (en) | 1984-05-02 |
JPS6250743B2 true JPS6250743B2 (en) | 1987-10-27 |
Family
ID=16039177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17790983A Granted JPS5977273A (en) | 1983-09-28 | 1983-09-28 | Heat exchanger for air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5977273A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3795928A4 (en) * | 2018-05-15 | 2021-04-07 | Mitsubishi Electric Corporation | Refrigeration cycle device |
-
1983
- 1983-09-28 JP JP17790983A patent/JPS5977273A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5977273A (en) | 1984-05-02 |
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