JPH08128388A - Oil separator for oil cooled compressor - Google Patents
Oil separator for oil cooled compressorInfo
- Publication number
- JPH08128388A JPH08128388A JP27118794A JP27118794A JPH08128388A JP H08128388 A JPH08128388 A JP H08128388A JP 27118794 A JP27118794 A JP 27118794A JP 27118794 A JP27118794 A JP 27118794A JP H08128388 A JPH08128388 A JP H08128388A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- oil
- casing
- material layer
- absorbing material
- 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.)
- Granted
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば冷凍装置に用い
られる油冷式圧縮機の油分離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 oil separator of an oil-cooled compressor used in, for example, a refrigeration system.
【０００２】[0002]
【従来の技術】従来、図１０，図１１に示す油冷式圧縮
機の油分離器が公知である（特開平１−２１００１１
号，特開昭６０−１８４９８４号各公報）。図１０に示
す油分離器の場合、円筒形胴体１内の軸方向の一方の側
と他方の側とを仕切る第１，第２デミスタ２，３と、胴
体１の一方の側の上部にガス入口接手４と、胴体１の他
方の側の下部にガス出口接手５とが設けてあり、ガス入
口接手４から胴体１内に流入したガスを鏡板６に衝突さ
せるようにしてある。2. Description of the Related Art Conventionally, an oil separator for an oil-cooled compressor shown in FIGS. 10 and 11 has been known (Japanese Patent Laid-Open No. 1-2110011).
No. 60-184984). In the case of the oil separator shown in FIG. 10, the first and second demisters 2 and 3 for partitioning one side and the other side in the axial direction in the cylindrical body 1 and the gas on the upper side of the one side of the body 1 are separated. An inlet joint 4 and a gas outlet joint 5 are provided on the lower portion of the other side of the body 1 so that the gas flowing from the gas inlet joint 4 into the body 1 collides with the end plate 6.
【０００３】また、図１１では、メインケーシング７を
高圧部と低圧部とに区画し、高圧部をメインケーシング
７の下部に設けるとともに、この高圧部に連通する油分
離器８をメインケーシング７に結合した油冷式スクリュ
圧縮機が開示されている。この圧縮機では、吐出ポート
９に連通する内部流路開口部１０から上方に油分離器８
の内周面に向けて吐出するように形成してあり、吐出ガ
スはこの内周面に衝突した後、油分離エレメントにより
油分離され、吐出口１１から図示しない吐出流路に送り
出されるようになっている。Further, in FIG. 11, the main casing 7 is divided into a high-pressure portion and a low-pressure portion, the high-pressure portion is provided below the main casing 7, and an oil separator 8 communicating with this high-pressure portion is provided in the main casing 7. A combined oil cooled screw compressor is disclosed. In this compressor, the oil separator 8 is provided upward from the internal flow path opening 10 communicating with the discharge port 9.
It is formed so as to be discharged toward the inner peripheral surface of, and after the discharge gas collides with this inner peripheral surface, it is separated into oil by the oil separation element and sent out from the discharge port 11 to a discharge flow path (not shown). Has become.
【０００４】[0004]
【発明が解決しようとする課題】上記従来の装置の内、
図１０に示す油分離器の場合、ガス入口接手４から流入
してきたガスは、直接、入口側鏡板６に衝突する。一
方、圧縮機がスクリュ圧縮機の場合、雄ロータの歯数に
より決まる基本周波数とその倍数の脈動を発生させ、そ
れが圧縮機から油分離器に至る吐出管内を伝わって、油
分離器内に進む。そして、それが鏡板６に衝突し、胴体
１の振動を惹起する結果、大きな騒音が発生するという
問題が生じる。SUMMARY OF THE INVENTION Among the above conventional devices,
In the case of the oil separator shown in FIG. 10, the gas flowing from the gas inlet joint 4 directly collides with the inlet end plate 6. On the other hand, when the compressor is a screw compressor, it generates pulsation of the fundamental frequency determined by the number of teeth of the male rotor and its multiples, which is transmitted through the discharge pipe from the compressor to the oil separator, and then into the oil separator. move on. Then, it collides with the end plate 6 and causes the vibration of the body 1, resulting in a problem that a large noise is generated.
【０００５】また、図１１に示す油分離器の場合、圧縮
機から吐出されたガスは、直接、胴体、即ち油分離器８
の内周面に衝突するため、この胴体を振動させることに
なり、図１０に示す油分離器の場合と同様な問題が生じ
る。本発明は、斯る従来の問題点を課題としてなされた
もので、騒音の低減を可能とした油冷式圧縮機の油分離
器を提供しようとするものである。Further, in the case of the oil separator shown in FIG. 11, the gas discharged from the compressor is directly fed to the body, that is, the oil separator 8
Since it collides with the inner peripheral surface of this, the body is vibrated, and the same problem as in the case of the oil separator shown in FIG. 10 occurs. The present invention has been made to solve the conventional problems, and an object thereof is to provide an oil separator of an oil-cooled compressor that can reduce noise.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、第１発明は、圧縮機からの油を伴った吐出ガスが流
入するガス流入部を有するとともに、この流入したガス
を、油分離エレメントを通過させた後、流出させるガス
流出部を有する容器と、上記ガス流入部の上記容器内側
の開口部を包囲するとともにガス出口を有するケーシン
グ、およびこの開口部に対して対向する位置に通気性、
耐熱性のある吸音材層を備えた消音部とを設けて形成し
た。In order to solve the above-mentioned problems, the first invention has a gas inflow part into which discharge gas accompanied with oil from a compressor flows, and the inflowing gas is separated into oil. After passing through the element, a container having a gas outflow portion for flowing out, a casing surrounding the opening inside the container of the gas inflow portion and having a gas outlet, and venting to a position facing the opening sex,
And a sound deadening part having a heat-resistant sound absorbing material layer.
【０００７】第２発明は、上記ケーシングの内部空間の
ガスの流れ方向に沿った寸法をａ，上記開口部からこれ
に対して対向する内周面に向かう方向の距離をｂ，上記
両方向に直交する方向の距離をｃ，消音対象の最低周波
数の波長をλ0（ｍ）とすると、上記ケーシングを、 ａ＞λ0／４ ｂ＞λ0／１０ ｃ＞λ0／１０ の関係が成立する大きさに形成した。According to a second aspect of the present invention, the dimension of the internal space of the casing along the gas flow direction is a, the distance from the opening to the inner peripheral surface facing the opening is b, and the distance is orthogonal to both directions. the distance direction of the c, and the wavelength of the lowest frequency of silencing target and lambda 0 (m), the casing, the relationship of a> λ 0/4 b> λ 0/10 c> λ 0/10 is satisfied Formed to size.
【０００８】第３発明は、上記ケーシングを上記容器の
内周壁から離して形成した。According to a third aspect of the invention, the casing is formed apart from the inner peripheral wall of the container.
【０００９】第４発明は、上記ガス出口を上記容器の下
部に設けて形成した。According to a fourth aspect of the invention, the gas outlet is formed in the lower portion of the container.
【００１０】第５発明は、上記吸音材層を断面Ｌ字形に
形成するとともに、このＬ字形の一方の端部に向き合う
位置に上記ガス流入部の開口部を、他方の端部に向き合
う位置に上記ガス出口を設けて形成した。According to a fifth aspect of the present invention, the sound absorbing material layer is formed in an L-shaped cross section, and the opening of the gas inflow portion is located at a position facing one end of the L-shaped, and at a position facing the other end. It was formed by providing the gas outlet.
【００１１】[0011]
【作用】上記発明のように構成することにより、圧縮機
から吐出され、油分離器内に流入してきたガスが直接容
器の内周面に衝突することはなくなる。With the structure as described above, the gas discharged from the compressor and flowing into the oil separator does not directly collide with the inner peripheral surface of the container.
【００１２】[0012]
【実施例】次に、本発明の一実施例を図面にしたがって
説明する。図１，２は、第１，第２発明に係る油冷式圧
縮機、例えばスクリュ圧縮機の油分離器を示し、ガス流
入部２１およびガス流出部２２を有する容器２３と、こ
の内部に配置した消音部２４とを備えている。ガス流入
部２１には、図示しない圧縮機からの油を伴った吐出ガ
スが流入する。そして、容器２３の油分離エレメント２
５にて吐出ガスは、油と分離され、ガス流出部２２から
出てゆき、分離された油は一旦下方の油溜まり部２６に
溜められる。なお、この油溜まり部２６の油は、油流出
口２７から図示しない油供給路を経て、上記圧縮機のロ
ータ室、軸受，軸封部に供給され、循環使用される。Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show an oil separator of an oil-cooled compressor according to the first and second aspects of the invention, for example, a screw compressor, and a container 23 having a gas inflow part 21 and a gas outflow part 22 and a container 23 arranged inside the container 23. And a muffling section 24. Discharge gas accompanied by oil from a compressor (not shown) flows into the gas inflow portion 21. And the oil separation element 2 of the container 23
At 5, the discharge gas is separated from the oil and flows out from the gas outflow portion 22, and the separated oil is temporarily stored in the oil sump portion 26 below. The oil in the oil sump 26 is supplied from the oil outlet 27 through an oil supply passage (not shown) to the rotor chamber, the bearing, and the shaft seal of the compressor, and is circulated.
【００１３】一方、消音部２４には、ガス流入部２１の
容器内側の開口部２８を包囲するとともにガス出口２９
を有するケーシング３０と、およびこの開口部２８に対
して対向する位置に通気性、耐熱性のある吸音材層３１
とが設けてある。本実施例では、開口部２８はケーシン
グ３０の下部に位置し、ガス出口２９はケーシング３０
の上部に位置するように形成してある。また、吸音材層
３１の材料としては、例えば繊維状のステンレス鋼群が
好適であるが、本発明はこれに限定するものではない。
なお、ケーシング３０の下部には、この内部でガスから
分離した油が油溜まり部２６に滴下するための図示しな
い油落とし孔が設けられている。On the other hand, the muffling section 24 surrounds the opening 28 inside the container of the gas inflow section 21 and also the gas outlet 29.
And a sound absorbing material layer 31 having air permeability and heat resistance at a position facing the opening 30.
And are provided. In this embodiment, the opening 28 is located at the bottom of the casing 30, and the gas outlet 29 is located at the casing 30.
It is formed so as to be located on the upper part of. Further, as the material of the sound absorbing material layer 31, for example, a fibrous stainless steel group is suitable, but the present invention is not limited to this.
An oil drop hole (not shown) is provided in the lower portion of the casing 30 so that the oil separated from the gas inside the casing 30 drops into the oil sump 26.
【００１４】そして、斯る消音部２４を設けることによ
り、ガス流入部２１から容器２３内に入ってきたガス
を、まず最初に、容器２３の内周面ではなく、吸音材層
３１に衝突させるようになっている。このガスの一部は
吸音材層３１内を通過し、残りのガスは吸音材層３１外
で、ケーシング３０の内周面、および吸音材層３１に衝
突を繰り返し、ガス出口２９からケーシング３０外に出
てゆく。このように、容器２３内に流入してきたガスの
エネルギは、吸音材層３１内を通過する間に、或は吸音
材層３１外で衝突を繰り返す間に消音部２４に吸収さ
れ、結果的に容器２３外に放出される騒音は抑制され
る。By providing such a sound deadening part 24, the gas entering the container 23 from the gas inflow part 21 is first made to collide not with the inner peripheral surface of the container 23 but with the sound absorbing material layer 31. It is like this. A part of this gas passes through the sound absorbing material layer 31, and the rest of the gas is outside the sound absorbing material layer 31, repeatedly colliding with the inner peripheral surface of the casing 30 and the sound absorbing material layer 31, and the gas exit 29 outside the casing 30. Go out to. As described above, the energy of the gas flowing into the container 23 is absorbed by the sound deadening portion 24 while passing through the sound absorbing material layer 31 or repeatedly colliding outside the sound absorbing material layer 31, and as a result, The noise emitted to the outside of the container 23 is suppressed.
【００１５】第２発明に係る油分離器の場合、図１，２
に示すように、ケーシング３０の内部空間のガスの流れ
方向に沿った寸法をａ，開口部２８からこれに対して対
向する内周面に向かう方向の距離をｂ，上記両方向に直
交する方向の距離をｃ，消音対象の最低周波数の波長を
λ0（ｍ）とすると、ケーシング３０を、ａ＞λ0／４，
ｂ＞λ0／１０，ｃ＞λ0／１０の関係が成立する大きさ
に形成してある。なお、スクリュ圧縮機の場合、雄ロー
タの回転数をｎ（ｒｐｍ）、雄ロータの歯数をｚ、冷媒
ガス中での音速をＣ（ｍ／ｓ）とするとλ0＝６０Ｃ／
（ｎｚ）（ｍ）で表され、例えばｎ＝３６００，ｚ＝
４，Ｃ＝１７０とすると、λ0＝０．７０８（ｍ）とな
り、ａ＞１７７ｍｍ，ｂ＞７１ｍｍ，ｃ＞７１ｍｍとな
る。In the case of the oil separator according to the second invention, FIGS.
As shown in FIG. 4, the dimension of the inner space of the casing 30 along the gas flow direction is a, the distance from the opening 28 toward the inner peripheral surface facing the opening b is b, and the distance in the direction orthogonal to both directions is shown. distance c, and the wavelength of the lowest frequency of silencing target and λ 0 (m), a casing 30, a> λ 0/4 ,
relationship b> λ 0/10, c > λ 0/10 is is formed to a size which satisfies. In the case of a screw compressor, λ 0 = 60C /, where n (rpm) is the number of rotations of the male rotor, z is the number of teeth of the male rotor, and C (m / s) is the speed of sound in the refrigerant gas.
(Nz) (m), for example, n = 3600, z =
4, C = 170, λ 0 = 0.708 (m), and a> 177 mm, b> 71 mm, and c> 71 mm.
【００１６】ケーシング３０内の空間部は、吸音材層３
１とともに消音部２４の重要な構成要素となっている。
もしも、この空間部がないと、圧損が大き過ぎて冷媒ガ
スが流れなくなる。また、副次的な効果として油を伴っ
た吐出ガスが吸音材と衝突して油と分離される。一般
に、消音器の消音特性は、消音器の容積と比例関係にあ
り、この容積を大きくすることにより消音性能を向上さ
せることができる。しかしながら、消音部２４は油分離
器に内蔵させるため、現実的な処理として必要最小限の
寸法を上式のように定めている。The space inside the casing 30 is provided with the sound absorbing material layer 3
1 is an important constituent element of the muffling section 24.
If this space is not provided, the pressure loss will be too large and the refrigerant gas will not flow. As a secondary effect, the discharge gas accompanied by oil collides with the sound absorbing material and is separated from the oil. Generally, the muffling characteristic of the muffler is in a proportional relationship with the volume of the muffler, and the muffling performance can be improved by increasing this volume. However, since the muffling section 24 is built in the oil separator, the minimum required size is set as in the above formula for practical processing.
【００１７】なお、上式のように定めた根拠は、以下の
通りである。ガス流入部２１から流入したガスにより生
じた音の内、ケーシング３０内の下方に伝播して、底面
で反射した音の位相と、直接上方に向かう音の位相とを
異ならせる必要がある。もしも、ａの大きさをλ0／２
とすると、上記両位相が同一となり、音波の振幅を増大
するように作用することになる。これに対して、ａの大
きさをλ0／４とすると、上記両位相が１８０゜、即ち
半波長だけずれて、音波同志が互いに打ち消し合うよう
に作用することになる。したがって、ａの大きさをλ0
／４より大きくすることにより、上記両位相をずらすと
ともに、ガスがガス流入部２１からガス出口２９に至る
間に吸音材によるエネルギの吸収ができるだけ大きくな
るようにようにしてある。また、ｂおよびｃの大きさに
ついては、テスト結果より、消音効果の大きいのはλ0
／１０より大きい場合であることが確認されたことによ
る。The grounds defined by the above equation are as follows. Among the sounds generated by the gas flowing in from the gas inflow portion 21, it is necessary to make the phase of the sound propagating downward in the casing 30 and reflected at the bottom surface different from the phase of the sound going directly upward. If the magnitude of a λ 0/2
Then, the above two phases are the same, and they act to increase the amplitude of the sound wave. In contrast, when the size of a and lambda 0/4, the both phase 180 °, i.e. shifted by half wavelength will act as sound wave comrades cancel each other. Therefore, the size of a is λ 0
By making it larger than / 4, both the phases are shifted and the energy absorption by the sound absorbing material is maximized while the gas reaches the gas inflow portion 21 and the gas outlet 29. Regarding the magnitudes of b and c, λ 0 has a greater silencing effect than the test results.
It is confirmed that the case is larger than / 10.
【００１８】図３は、油冷式スクリュ圧縮機の油分離器
について行った周波数分析の結果を示し、実線による曲
線が消音部２４を取り付けた油分離器の場合で、破線に
よる曲線が消音部２４を取り付けない油分離器の場合を
示している。この図３より、騒音の最も支配的な周波数
５００Ｈｚの部分（騒音の２次のピーク部）で、かなり
騒音が低減されていることが分かる。FIG. 3 shows the results of the frequency analysis performed on the oil separator of the oil-cooled screw compressor, where the solid line curve represents the case of the oil separator with the muffling section 24, and the broken line curve represents the muffling section. The case of an oil separator without 24 is shown. From FIG. 3, it can be seen that the noise is considerably reduced at the most dominant frequency portion of the noise of 500 Hz (secondary peak portion of noise).
【００１９】図４，５は、第３発明に係る油冷式圧縮機
の油分離器を示し、図１，２に示す油分離器とは、ケー
シング３０を容器２３の内周壁から離して設けた点を除
き、他は実質的に同一であり、互いに共通する部分につ
いては、同一番号を付して説明を省略する。このよう
に、ケーシング３０を容器２３の内周壁から離すことに
より、圧縮機からの吐出ガスによる振動が容器２３に伝
わるのを少なくし、騒音をより一層低減するようになっ
ている。4 and 5 show an oil separator of an oil-cooled compressor according to a third aspect of the present invention, in which the casing 30 is provided separately from the inner peripheral wall of the container 23. Except for the above point, the other parts are substantially the same, and the common parts are denoted by the same reference numerals and the description thereof will be omitted. In this way, by separating the casing 30 from the inner peripheral wall of the container 23, the vibration due to the discharge gas from the compressor is less transmitted to the container 23, and the noise is further reduced.
【００２０】図６，７は、第４発明に係る油冷式圧縮機
の油分離器を示し、図１，２に示す油分離器とは、ガス
流入部２１とガス出口２９の位置関係を上下逆にした点
を除き、他は実質的に同一であり、互いに共通する部分
については、同一番号を付して説明を省略する。この油
分離器の場合、騒音の低減については、図１，２に示す
油分離器とほぼ同じであるが、ガス出口２９を下方に位
置させることによりガスと油との分離効率は向上する。FIGS. 6 and 7 show the oil separator of the oil-cooled compressor according to the fourth aspect of the present invention. The oil separator shown in FIGS. Except for the fact that they are turned upside down, the other parts are substantially the same, and the parts common to each other are denoted by the same reference numerals and the description thereof is omitted. In the case of this oil separator, noise reduction is almost the same as that of the oil separator shown in FIGS. 1 and 2, but the gas and oil separation efficiency is improved by positioning the gas outlet 29 below.
【００２１】図８，９は、第５発明に係る油冷式圧縮機
の油分離器を示し、図１，２に示す油分離器とは、吸音
材層３１を断面Ｌ字形とし、ケーシング３０内の上部
で、吸音材層３１の下方にガス出口２９を設けた点を除
き、他は実質的に同一であり、互いに共通する部分につ
いては、同一番号を付して説明を省略する。この油分離
器の場合、吸音材層３１を断面Ｌ字形とすることによ
り、ガスが流れる吸音材層３１中の距離を長くすること
により、吸収するガスのエネルギの量を増大させ、より
一層、騒音を低減するようにしてある。8 and 9 show an oil separator of an oil-cooled compressor according to the fifth aspect of the present invention. The oil separator shown in FIGS. 1 and 2 has a sound absorbing material layer 31 having an L-shaped cross section and a casing 30. Except that the gas outlet 29 is provided below the sound absorbing material layer 31 in the upper part of the inside, the other parts are substantially the same, and the common parts are denoted by the same reference numerals and description thereof is omitted. In the case of this oil separator, the sound absorbing material layer 31 has an L-shaped cross section, and the distance in the sound absorbing material layer 31 through which the gas flows is increased, thereby increasing the amount of energy of the gas to be absorbed, and further It is designed to reduce noise.
【００２２】なお、図６〜図９では、容器２３に直接ケ
ーシング３０を取り付けた例を示したが、第４，５発明
はこれに限定するものでなく、容器２３の内周壁から離
してケーシング３０を設けたものであってもよい。ま
た、図４，５および図８，９では、ガス流入部２１を下
方にガス出口２９を上方に設けた例を示したが、第３，
第５発明はこれに限定するものでなく、ガス流入部２１
とガス出口２９の位置関係を上下逆にしてもよい。Although FIGS. 6 to 9 show examples in which the casing 30 is directly attached to the container 23, the fourth and fifth inventions are not limited to this, and the casing is separated from the inner peripheral wall of the container 23. 30 may be provided. 4 and 5 and FIGS. 8 and 9 show an example in which the gas inflow portion 21 is provided below and the gas outlet 29 is provided above.
The fifth invention is not limited to this, but the gas inflow portion 21
The positional relationship between the gas outlet 29 and the gas outlet 29 may be inverted.
【００２３】[0023]
【発明の効果】以上の説明より明らかなように、第１発
明によれば、圧縮機からの油を伴った吐出ガスが流入す
るガス流入部を有するとともに、この流入したガスを、
油分離エレメントを通過させた後、流出させるガス流出
部を有する容器と、上記ガス流入部の上記容器内側の開
口部を包囲するとともにガス出口を有するケーシング、
およびこの開口部に対して対向する位置に通気性、耐熱
性のある吸音材層を備えた消音部とを設けて形成してあ
る。このため、圧縮機から吐出され、油分離器内に流入
してきたガスが直接容器の内周面に衝突することはなく
なり、消音部内の吸音材層によりガスのエネルギが吸収
され騒音の低減が可能になるという効果を奏する。As is apparent from the above description, according to the first aspect of the present invention, the gas inflow portion into which the discharge gas accompanied with oil from the compressor flows is provided, and the inflowing gas is
After passing through the oil separation element, a container having a gas outflow portion for flowing out, and a casing having a gas outlet surrounding the opening of the gas inflow portion inside the container,
Further, a sound deadening portion provided with a sound absorbing material layer having air permeability and heat resistance is provided at a position facing the opening. Therefore, the gas discharged from the compressor and flowing into the oil separator does not directly collide with the inner peripheral surface of the container, and the sound absorbing material layer in the sound deadening part absorbs the energy of the gas to reduce noise. Has the effect of becoming.
【００２４】また、第２発明によれば、上記ケーシング
の内部空間のガスの流れ方向に沿った寸法をａ，上記開
口部からこれに対して対向する内周面に向かう方向の距
離をｂ，上記両方向に直交する方向の距離をｃ，消音対
象の最低周波数の波長をλ0（ｍ）とすると、上記ケー
シングを、 ａ＞λ0／４ ｂ＞λ0／１０ ｃ＞λ0／１０ の関係が成立する大きさに形成してある。このため、第
１発明による効果に加えて、消音部内で発生した音波の
内、ケーシングの内周面で反射した音波と、直接ガス出
口側に向かう音波とが、その位相が重なり合うことな
く、互いに弱め合うことにより、或は一定の寸法より吸
音材層を大きくして、吸音材層によるガスエネルギの吸
収を増大させることにより、より一層、騒音が低減され
るという効果を奏する。According to the second aspect of the invention, the dimension of the internal space of the casing along the gas flow direction is a, and the distance from the opening toward the inner peripheral surface facing the opening is b. the distance in the direction perpendicular to the directions c, and the wavelength of the lowest frequency of silencing target and λ 0 (m), the casing, a> lambda of 0/4 b> λ 0/ 10 c> λ 0/10 It is formed to a size that establishes a relationship. Therefore, in addition to the effect of the first invention, among the sound waves generated in the sound deadening part, the sound wave reflected by the inner peripheral surface of the casing and the sound wave directly heading to the gas outlet side do not overlap each other in phase, and By weakening each other or making the sound absorbing material layer larger than a certain size to increase absorption of gas energy by the sound absorbing material layer, noise is further reduced.
【００２５】さらに、第３発明によれば、上記ケーシン
グを上記容器の内周壁から離して形成してある。このた
め、第１、或は第２発明による効果に加えて、ケーシン
グの振動が容器に伝わるのが抑制され、さらに騒音が低
減されるという効果を奏する。Further, according to the third invention, the casing is formed apart from the inner peripheral wall of the container. Therefore, in addition to the effect of the first or second invention, the vibration of the casing is suppressed from being transmitted to the container, and the noise is further reduced.
【００２６】さらに、第４発明によれば、上記ガス出口
を上記容器の下部に設けて形成してある。 このため、
第１、第２或は第３発明による効果に加えて、消音部内
でのガスと油の分離が促進されるという効果を奏する。Further, according to the fourth aspect of the invention, the gas outlet is provided in the lower portion of the container. For this reason,
In addition to the effect of the first, second or third invention, there is an effect that the separation of gas and oil in the muffling section is promoted.
【００２７】さらに、第５発明によれば、上記吸音材層
を断面Ｌ字形に形成するとともに、このＬ字形の一方の
端部に向き合う位置に上記ガス流入部の開口部を、他方
の端部に向き合う位置に上記ガス出口を設けて形成して
ある。このため、第１，第２，第３、或は第４発明によ
る効果に加えて、吸音材層中のガスの移動距離が長くな
り、吸収されるガスエネルギが増大することにより、さ
らに騒音が低減されるという効果を奏する。Further, according to the fifth invention, the sound absorbing material layer is formed into an L-shaped cross section, and the opening of the gas inflow portion is provided at a position facing one end of the L-shaped and the other end is provided. The gas outlet is provided at a position facing each other. Therefore, in addition to the effect of the first, second, third, or fourth invention, the moving distance of the gas in the sound absorbing material layer becomes long, and the absorbed gas energy increases, which further causes noise. The effect is reduced.
【図１】 第１，第２発明に係る油冷式圧縮機の油分離
器の断面図である。FIG. 1 is a sectional view of an oil separator of an oil-cooled compressor according to first and second aspects of the invention.
【図２】 図１のII−II線断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】 図１，２に示す油分離器、および消音部を有
さない油分離器を油冷式圧縮機に適用して行った周波数
分析の結果を示す図である。FIG. 3 is a diagram showing the results of frequency analysis performed by applying the oil separator shown in FIGS. 1 and 2 and the oil separator having no muffling section to an oil-cooled compressor.
【図４】 第３発明に係る油冷式圧縮機の油分離器の断
面図である。FIG. 4 is a sectional view of an oil separator of an oil-cooled compressor according to a third invention.
【図５】 図４のV−V線断面図である。5 is a sectional view taken along line VV of FIG.
【図６】 第４発明に係る油冷式圧縮機の油分離器の断
面図である。FIG. 6 is a sectional view of an oil separator of an oil-cooled compressor according to a fourth aspect of the invention.
【図７】 図６のVII−VII線断面図である。7 is a sectional view taken along line VII-VII of FIG.
【図８】 第５発明に係る油冷式圧縮機の油分離器の断
面図である。FIG. 8 is a sectional view of an oil separator of an oil-cooled compressor according to a fifth aspect of the invention.
【図９】 図８のIX−IX線断面図である。9 is a sectional view taken along line IX-IX of FIG.
【図１０】 従来の油冷式圧縮機の油分離器の断面図で
ある。FIG. 10 is a sectional view of an oil separator of a conventional oil-cooled compressor.
【図１１】 従来の別の油冷式圧縮機の油分離器の断面
図である。FIG. 11 is a sectional view of an oil separator of another conventional oil-cooled compressor.
２１ ガス流入部 ２２ ガス流出部 ２３ 容器 ２４ 消音部 ２５ 油分離エレメント ２８ 開口部 ２９ ガス出口 ３０ ケーシング ３１ 吸音材層 21 gas inflow part 22 gas outflow part 23 container 24 muffling part 25 oil separation element 28 opening 29 gas outlet 30 casing 31 sound absorbing material layer
Claims (5)
するガス流入部を有するとともに、この流入したガス
を、油分離エレメントを通過させた後、流出させるガス
流出部を有する容器と、上記ガス流入部の上記容器内側
の開口部を包囲するとともにガス出口を有するケーシン
グ、およびこの開口部に対して対向する位置に通気性、
耐熱性のある吸音材層を備えた消音部とを設けて形成し
たことを特徴とする油冷式圧縮機の油分離器。1. A container having a gas inflow portion into which a discharge gas accompanied by oil from a compressor flows, and a gas outflow portion from which the inflowing gas is allowed to flow out after passing through an oil separation element, A casing that surrounds the opening inside the container of the gas inlet and has a gas outlet, and air permeability at a position facing the opening,
An oil separator of an oil-cooled compressor, which is formed by providing a sound deadening part having a heat-resistant sound absorbing material layer.
方向に沿った寸法をａ，上記開口部からこれに対して対
向する内周面に向かう方向の距離をｂ，上記両方向に直
交する方向の距離をｃ，消音対象の最低周波数の波長を
λ0（ｍ）とすると、上記ケーシングを、 ａ＞λ0／４ ｂ＞λ0／１０ ｃ＞λ0／１０ の関係が成立する大きさに形成したことを特徴とする請
求項１に記載の油冷式圧縮機の油分離器。2. A dimension of the inner space of the casing along the gas flow direction is a, a distance in a direction from the opening toward an inner peripheral surface facing the opening is b, and a distance in a direction orthogonal to the two directions. distance c, and the wavelength of the lowest frequency of silencing target and λ 0 (m), the casing, a> λ 0/4 b > λ 0 / to 10 c> λ 0/10 sizes which satisfy the relationship of It formed, The oil separator of the oil-cooled compressor of Claim 1 characterized by the above-mentioned.
離して形成したことを特徴とする請求項１または２に記
載の油冷式圧縮機の油分離器。3. The oil separator of the oil-cooled compressor according to claim 1, wherein the casing is formed apart from the inner peripheral wall of the container.
形成したことを特徴とする請求項１から３のいずれかに
記載の油冷式圧縮機の油分離器。4. The oil separator of the oil-cooled compressor according to claim 1, wherein the gas outlet is formed at a lower portion of the container.
ともに、このＬ字形の一方の端部に向き合う位置に上記
ガス流入部の開口部を、他方の端部に向き合う位置に上
記ガス出口を設けて形成したことを特徴とする請求項１
から４のいずれかに記載の油冷式圧縮機の油分離器。5. The sound absorbing material layer is formed to have an L-shaped cross section, the opening of the gas inflow portion is located at a position facing one end of the L-shaped, and the gas outlet is located at a position facing the other end. 2. The structure according to claim 1, wherein
4. The oil separator of the oil-cooled compressor according to any one of 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27118794A JP2935815B2 (en) | 1994-11-04 | 1994-11-04 | Oil separator of oil-cooled compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27118794A JP2935815B2 (en) | 1994-11-04 | 1994-11-04 | Oil separator of oil-cooled compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08128388A true JPH08128388A (en) | 1996-05-21 |
| JP2935815B2 JP2935815B2 (en) | 1999-08-16 |
Family
ID=17496566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27118794A Expired - Lifetime JP2935815B2 (en) | 1994-11-04 | 1994-11-04 | Oil separator of oil-cooled compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2935815B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006065567A2 (en) | 2004-12-14 | 2006-06-22 | Carrier Corporation | Refrigerant/oil separator |
| JP2007327439A (en) * | 2006-06-08 | 2007-12-20 | Kobe Steel Ltd | Oil separator of oil-cooled compressor |
| EP1960722A1 (en) * | 2005-12-14 | 2008-08-27 | Carrier Corporation | Combined muffler and oil separator for refrigerant system |
| US7967901B2 (en) | 2008-04-14 | 2011-06-28 | Kobe Steel, Ltd. | Lubricating liquid separator |
-
1994
- 1994-11-04 JP JP27118794A patent/JP2935815B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006065567A2 (en) | 2004-12-14 | 2006-06-22 | Carrier Corporation | Refrigerant/oil separator |
| EP1828692A2 (en) * | 2004-12-14 | 2007-09-05 | Carrier Corporation | Refrigerant/oil separator |
| US7310970B2 (en) * | 2004-12-14 | 2007-12-25 | Carrier Corporation | Refrigerant/oil separator |
| EP1828692A4 (en) * | 2004-12-14 | 2010-12-01 | Carrier Corp | Refrigerant/oil separator |
| EP1960722A1 (en) * | 2005-12-14 | 2008-08-27 | Carrier Corporation | Combined muffler and oil separator for refrigerant system |
| EP1960722A4 (en) * | 2005-12-14 | 2011-12-14 | Carrier Corp | Combined muffler and oil separator for refrigerant system |
| JP2007327439A (en) * | 2006-06-08 | 2007-12-20 | Kobe Steel Ltd | Oil separator of oil-cooled compressor |
| US7967901B2 (en) | 2008-04-14 | 2011-06-28 | Kobe Steel, Ltd. | Lubricating liquid separator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2935815B2 (en) | 1999-08-16 |
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