JPH0510190Y2 - - Google Patents
Info
- Publication number
- JPH0510190Y2 JPH0510190Y2 JP1986105788U JP10578886U JPH0510190Y2 JP H0510190 Y2 JPH0510190 Y2 JP H0510190Y2 JP 1986105788 U JP1986105788 U JP 1986105788U JP 10578886 U JP10578886 U JP 10578886U JP H0510190 Y2 JPH0510190 Y2 JP H0510190Y2
- Authority
- JP
- Japan
- Prior art keywords
- accumulator
- partition plate
- outlet pipe
- compressor
- refrigerant
- 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 - Lifetime
Links
- 239000003507 refrigerant Substances 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000010349 pulsation Effects 0.000 description 3
- 230000001743 silencing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Compressor (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は圧縮機のアキユムレータに消音効果
をもたせることにより、蒸発器との間での音響共
振をなくすようにしたものである。[Detailed description of the invention] [Industrial application field] This invention is designed to eliminate acoustic resonance between the compressor and the evaporator by providing a silencing effect to the accumulator of the compressor.
冷凍、空調装置においては、第７図に示すよう
に圧縮機１，凝縮器２、絞り機構３および蒸発器
４より成る冷凍サイクルで圧縮機１の吸入側と蒸
発器との間にアキユムレータ５を配置し、このア
キユムレータ５で蒸発器から戻つてくる気液混合
状態にある冷媒を液冷媒とガス冷媒に分離し、ガ
ス冷媒のみが圧縮機１に吸入されるようにしてい
る。
In a refrigeration and air conditioning system, an accumulator 5 is installed between the suction side of the compressor 1 and the evaporator in a refrigeration cycle consisting of a compressor 1, a condenser 2, a throttle mechanism 3, and an evaporator 4, as shown in FIG. The accumulator 5 separates the gas-liquid mixed refrigerant returned from the evaporator into liquid refrigerant and gas refrigerant, so that only the gas refrigerant is sucked into the compressor 1.
上記の目的のため、従来のアキユムレータは第
５図、第６図に示すような構造になつている。す
なわち、アキユムレータ５の外殻を成す密閉容器
６の頂面に冷媒の入口管７を、また底面に冷媒の
出口管８が設けられており、そしてこの出口管８
は密閉容器６の中央部より上方位置に、その開口
端が位置するよう長く挿入されており、かつこの
出口管８の密閉容器内底部に近い位置には、潤滑
油を圧縮機１に戻すための小孔１４が穿設されて
いる。また上記の入口管７と出口管８の間には入
口管７より流入した液冷媒が直接出口管８に流入
するのを防ぐため、冷媒の通路となる透孔１５を
有する密閉容器６内の仕切り板９が設けられてい
る。 For the above purpose, a conventional accumulator has a structure as shown in FIGS. 5 and 6. That is, a refrigerant inlet pipe 7 is provided on the top surface of a closed container 6 forming the outer shell of the accumulator 5, and a refrigerant outlet pipe 8 is provided on the bottom surface.
is inserted for a long time so that its open end is located above the center of the closed container 6, and at a position close to the inner bottom of the closed container of this outlet pipe 8 is a pipe for returning lubricating oil to the compressor 1. A small hole 14 is bored. In addition, between the inlet pipe 7 and the outlet pipe 8 described above, in order to prevent the liquid refrigerant that has flowed in from the inlet pipe 7 from directly flowing into the outlet pipe 8, a closed container 6 is provided with a through hole 15 that serves as a passage for the refrigerant. A partition plate 9 is provided.
以上のようにして入口管７から流入した気液混
合冷媒を、上記の仕切り板９によつてその下方の
密閉容器６の下部に液冷媒として溜め、上部にガ
ス冷媒を溜めるようにしており、そしてこのガス
冷媒のみを出口管８を通して圧縮機１の吸込側へ
流すようにしている。 The gas-liquid mixed refrigerant that has flowed in from the inlet pipe 7 as described above is stored as a liquid refrigerant in the lower part of the sealed container 6 below by the partition plate 9, and the gas refrigerant is stored in the upper part. Only this gas refrigerant is allowed to flow through the outlet pipe 8 to the suction side of the compressor 1.
従来のアキユムレータは以上のように構成さ
れ、そして溜まつた液冷媒をすみやかに蒸発させ
るために、これを圧縮機１に近接させて取付けら
れており、したがつて圧縮機１から伝わる吸入時
の脈動等による振動が、当該アキユムレータを介
して蒸発器４に伝達されて共鳴し、装置全体とし
て騒音が大きくなるという問題点があつた。
The conventional accumulator is constructed as described above, and is installed close to the compressor 1 in order to quickly evaporate the accumulated liquid refrigerant. There was a problem in that vibrations caused by pulsation or the like were transmitted to the evaporator 4 through the accumulator and resonated, increasing the noise of the entire device.
また、仕切板９の透孔１５が出口管８の開口よ
り高い位置にあるため、透孔１５を通過した液冷
媒の一部が直接出口管８の開口から吸引される恐
れがあつた。 Furthermore, since the through holes 15 of the partition plate 9 were located at a higher position than the openings of the outlet pipes 8, there was a risk that a portion of the liquid refrigerant that had passed through the through holes 15 would be sucked directly through the openings of the outlet pipes 8.
この考案は上記の問題点を除去するように蒸発
器との共鳴をなくし、かつ出口管からの液冷媒の
直接の吸引をなくすように、アキユムレータを改
変するものである。 This invention eliminates the above problems by modifying the accumulator to eliminate resonance with the evaporator and to eliminate direct suction of liquid refrigerant from the outlet pipe.
一般に圧縮機から伝わる吸入時の脈動等による
振動が、アキユムレータのボリユームや、蒸発器
のボリユームおよびこれら両者を接続する配管の
径や長さにより、その音響共振が例えば300Hz〜
1KHzの比較的低周波域に生じ、鋭い山を持つ周
波数特性を示すことがある。 In general, vibrations due to pulsation during suction transmitted from a compressor, etc., can cause acoustic resonance of, for example, 300Hz to
It occurs in the relatively low frequency range of 1KHz and may exhibit frequency characteristics with sharp peaks.
そしてこの音響共振が生じた場合、アキユムレ
ータ、蒸発器、配管のいずれかの仕様の変更を行
う必要があるが、冷凍サイクル上の性能への影響
や、寸法上の規制により、これらの仕様変更は難
しく、一般的にはアキユムレータと蒸発器の間に
別個に消音マフラーを設けることにより、解決し
ていたが、この考案の場合はこのような別部分を
使用することなく、一般に知られているヘルムホ
ルツの共鳴器の原理を応用してアキユムレータに
消音効果をもたせようとするものである。 If this acoustic resonance occurs, it is necessary to change the specifications of the accumulator, evaporator, or piping, but due to the impact on refrigeration cycle performance and dimensional regulations, these specification changes are prohibited. This was difficult and was generally solved by installing a separate muffler between the accumulator and the evaporator, but in the case of this invention, without using such a separate part, the generally known Helmholtz The idea is to apply the principle of a resonator to give an accumulator a silencing effect.
ところで、この際に問題となる周波数に対し説
明すると、ヘルムホルツの共鳴器の場合では共鳴
周波数0＝Ｃ／2π√Ｓ／lVで示され、Ｃは流体の音速
、
Ｓは管路断面積、ｌは管路長（但し算式がある）、
Ｖは空間容積である。したがつてこの種アキユム
レータの場合、共振周波数を低周波側にずらすた
めには上記のＳを小さくするか、あるいはｌもし
くはＶを大きくしなければならないが、Ｓを小さ
くすることは冷媒流量との関係によりこれを一定
以上にしなければ性能低下につながる。またＶを
大きくすることは、寸法上の制約により難しい場
合がある。 By the way, to explain the frequency that is a problem at this time, in the case of a Helmholtz resonator, the resonance frequency is expressed as 0 = C/2π√S/lV, where C is the sound velocity of the fluid, S is the pipe cross-sectional area, and lV. is the pipe length (there is a formula),
V is the spatial volume. Therefore, in the case of this type of accumulator, in order to shift the resonant frequency to the lower frequency side, it is necessary to reduce the above S, or to increase l or V, but reducing S will affect the refrigerant flow rate. Depending on the relationship, if this is not kept above a certain level, performance will deteriorate. Furthermore, it may be difficult to increase V due to dimensional constraints.
以上のことから、この考案ではアキユムレータ
本来の性能を損うことなく、これに付設されるそ
の内部の仕切り板の改変により所望の上記Ｓやｌ
を選択設定して、これに消音効果を持たせようと
するものである。 From the above, in this invention, the desired S and l can be achieved by modifying the internal partition plate attached to the accumulator without impairing the original performance of the accumulator.
The purpose of this is to select and set the sound to give it a silencing effect.
この考案の場合は、密閉容器６内の仕切り板１
９に所定の断面積と長さを有し、下端が出口管の
開口より低い位置で下方に向けて開口するマフラ
ー管路を形成させている。
In the case of this invention, the partition plate 1 inside the airtight container 6
The muffler pipe 9 has a predetermined cross-sectional area and length, and a muffler pipe whose lower end opens downward at a position lower than the opening of the outlet pipe is formed.
この考案の場合は、上記ヘルムホルツの原理を
応用して、圧縮機から伝わる吸入時の脈動等によ
る振動により生ずる蒸発器の共鳴が、これらの間
に設けたアキユムレータそれ自体の消音設計によ
り除去されることになる。また、マフラー管路の
下端が出口管の開口より低い位置で下方に向け開
口しているので出口管からの液冷媒の直接の吸入
がなくなる。
In the case of this device, by applying the above-mentioned Helmholtz principle, the resonance of the evaporator caused by vibrations caused by pulsation during suction transmitted from the compressor is eliminated by the noise reduction design of the accumulator itself installed between them. It turns out. Further, since the lower end of the muffler pipe opens downward at a position lower than the opening of the outlet pipe, direct suction of liquid refrigerant from the outlet pipe is eliminated.
以下、この考案のアキユムレータの一実施例に
ついて説明する。
An embodiment of the accumulator of this invention will be described below.
すなわち、第１図および第２図はこの考案のア
キユムレータの一実施例で、図中第５図ないし第
７図の従来のものと同一個所は同一符号を付して
その重複説明は省略することにするが、この考案
の場合における密閉容器６内の仕切り板１９は第
２図に示すように密閉容器６の内径とほゞ同一の
外径を有するカツプ状に形成し、かつ上記の密閉
容器６との接触面となる外周面にはその上部空気
間１１より、下部空間１２への冷媒の通路となる
所定断面積と長さを有し、下端が出口管の開口よ
り低い位置で下方に向けて開口するマフラー管路
１３を一体成形させている点に特徴があり、そし
てこの仕切り板１９は密閉容器６内に圧入もしく
はろう付により固定されている。 That is, FIGS. 1 and 2 show one embodiment of the accumulator of this invention, and the same parts in the figures as in the conventional one shown in FIGS. However, in the case of this invention, the partition plate 19 inside the closed container 6 is formed into a cup shape having an outer diameter that is approximately the same as the inner diameter of the closed container 6, as shown in FIG. 6 has a predetermined cross-sectional area and length that serves as a passage for the refrigerant from the upper air space 11 to the lower space 12, and the lower end is located downward at a position lower than the opening of the outlet pipe. A feature is that a muffler conduit 13 that opens toward the outside is integrally molded, and this partition plate 19 is fixed into the closed container 6 by press-fitting or brazing.
また第３図および第４図は、この考案の他の実
施例を示すもので、この場合の仕切り板１９に
は、密閉容器６の上部空間１１より、下部空間１
２への冷媒の通路となるマフラー管路１３が所定
の断面積と長さとを有する２本の筒状管１０によ
つて形成されている。 3 and 4 show another embodiment of this invention, in which the partition plate 19 has a lower space 11 than an upper space 11 of the airtight container 6.
A muffler conduit 13 serving as a path for refrigerant to the refrigerant 2 is formed by two cylindrical tubes 10 having a predetermined cross-sectional area and length.
この考案は以上のようにアキユムレータ内の仕
切り板に、所定の断面積と長さを有するマフラー
管路を付設させるというわずかの改変により、ア
キユムレータそれ自体に消音効果を持たせること
ができ、またこの仕切り板により密閉容器の剛性
を高めているので、この密閉容器の共振を高周波
側へずらすことになり、上記マフラー管路と相俟
つて蒸発器の共鳴による騒音を低減できるという
効果が得られるものである。さらに、マフラー管
路の下端が出口管の開口より低い位置で下方に向
け開口しているので、出口管からの液冷媒の直接
の吸入がなくなり、気液分離効果が向上するとい
う効果もある。
As described above, this invention allows the accumulator itself to have a noise-reducing effect by attaching a muffler conduit having a predetermined cross-sectional area and length to the partition plate inside the accumulator. Since the rigidity of the sealed container is increased by the partition plate, the resonance of this sealed container is shifted to the high frequency side, and together with the muffler pipe mentioned above, the effect of reducing the noise caused by the resonance of the evaporator can be obtained. It is. Furthermore, since the lower end of the muffler pipe opens downward at a position lower than the opening of the outlet pipe, there is no direct suction of liquid refrigerant from the outlet pipe, thereby improving the gas-liquid separation effect.
第１図はこの考案のアキユムレータの一実施例
を示す縦断面図、第２図はアキユムレータの仕切
り板を示す密閉容器の横断面図、第３図はこの考
案のアキユムレータの他の実施例を示す縦断面
図、第４図は同じくアキユムレータの仕切り板を
示す密閉容器の横断面図、第５図は従来のアキユ
ムレータを示す縦断面図、第６図は従来のアキユ
ムレータの仕切り板を示す密閉容器の横断面図、
第７図は一般的な冷凍、空調装置の冷凍サイクル
を示す説明図である。
なお図中、１は圧縮機、４は蒸発器、６は密閉
容器、７は入口管、８は出口管、１１は上部空
間、１２は下部空間、１３はマフラー管路、１９
は仕切り板である。その他図中同一符号は同一部
分を示すものとする。
Fig. 1 is a vertical cross-sectional view showing one embodiment of the accumulator of this invention, Fig. 2 is a cross-sectional view of a closed container showing the partition plate of the accumulator, and Fig. 3 is a diagram showing another embodiment of the accumulator of this invention. FIG. 4 is a cross-sectional view of the closed container showing the partition plate of the accumulator, FIG. 5 is a longitudinal cross-sectional view of the conventional accumulator, and FIG. 6 is a cross-sectional view of the closed container showing the partition plate of the conventional accumulator. cross section,
FIG. 7 is an explanatory diagram showing a refrigeration cycle of a general refrigeration and air conditioner. In the figure, 1 is a compressor, 4 is an evaporator, 6 is a closed container, 7 is an inlet pipe, 8 is an outlet pipe, 11 is an upper space, 12 is a lower space, 13 is a muffler pipe, 19
is a partition plate. In other figures, the same reference numerals indicate the same parts.
Claims (1)
器の頂面に設けられた冷媒の入口管と、圧縮機
に接続され、上記密閉容器の底面に設けられて
この密閉容器の中央部より上方位置に開口する
冷媒の出口管と、上記密閉容器内を上記出口管
の開口より高い位置で上部空間と下部空間とに
分割する仕切り板とを備え、この仕切り板に所
定の断面積と長さに設定され、下端が上記出口
管の開口より低い位置で下方に向けて開口する
マフラー管路を一個もしくは複数個付設させた
ことを特徴とする圧縮機用アキユムレータ。 (2) 密閉容器内に嵌挿され、その内部を上部空間
と下部空間とに分割する仕切り板をカツプ状に
形成すると共に、その外周面に一個もしくは複
数個のマフラー管路を一体成形させた実用新案
登録請求の範囲第１項記載の圧縮機用アキユム
レータ。[Claims for Utility Model Registration] (1) An airtight container, a refrigerant inlet pipe connected to an evaporator and provided on the top of the airtight container, and a refrigerant inlet pipe connected to a compressor and provided at the bottom of the airtight container. and a refrigerant outlet pipe that opens at a position above the center of the closed container, and a partition plate that divides the inside of the closed container into an upper space and a lower space at a position higher than the opening of the outlet pipe. For a compressor, characterized in that the partition plate is provided with one or more muffler pipes each having a predetermined cross-sectional area and length and opening downward at a lower end lower than the opening of the outlet pipe. Accumulator. (2) A cup-shaped partition plate that is inserted into a closed container and divides the interior into an upper space and a lower space, and one or more muffler pipes are integrally molded on the outer peripheral surface of the partition plate. An accumulator for a compressor according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986105788U JPH0510190Y2 (en) | 1986-07-10 | 1986-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986105788U JPH0510190Y2 (en) | 1986-07-10 | 1986-07-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6314963U JPS6314963U (en) | 1988-01-30 |
| JPH0510190Y2 true JPH0510190Y2 (en) | 1993-03-12 |
Family
ID=30980545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986105788U Expired - Lifetime JPH0510190Y2 (en) | 1986-07-10 | 1986-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0510190Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5958621B2 (en) * | 2014-08-22 | 2016-08-02 | ダイキン工業株式会社 | accumulator |
| JP6589235B2 (en) * | 2015-06-26 | 2019-10-16 | 本田技研工業株式会社 | Air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530979B2 (en) * | 1971-08-23 | 1980-08-14 | ||
| JPS58178166A (en) * | 1982-04-14 | 1983-10-19 | 株式会社日立製作所 | Refrigeration cycle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5177610U (en) * | 1974-12-16 | 1976-06-18 | ||
| JPS5530979U (en) * | 1978-08-22 | 1980-02-28 | ||
| JPS59146580U (en) * | 1983-03-22 | 1984-09-29 | 三菱重工業株式会社 | compressor |
-
1986
- 1986-07-10 JP JP1986105788U patent/JPH0510190Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5530979B2 (en) * | 1971-08-23 | 1980-08-14 | ||
| JPS58178166A (en) * | 1982-04-14 | 1983-10-19 | 株式会社日立製作所 | Refrigeration cycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6314963U (en) | 1988-01-30 |
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