JP2011174401A - Accumulator for multiple cylinder compressor - Google Patents

Accumulator for multiple cylinder compressor Download PDF

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Publication number
JP2011174401A
JP2011174401A JP2010038343A JP2010038343A JP2011174401A JP 2011174401 A JP2011174401 A JP 2011174401A JP 2010038343 A JP2010038343 A JP 2010038343A JP 2010038343 A JP2010038343 A JP 2010038343A JP 2011174401 A JP2011174401 A JP 2011174401A
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Japan
Prior art keywords
accumulator
container
outlet pipe
compressor
lower container
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Pending
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JP2010038343A
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Japanese (ja)
Inventor
Toru Aya
亨 綾
Hiroshi Shiizaki
啓 椎崎
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Panasonic Corp
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Panasonic Corp
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Priority to JP2010038343A priority Critical patent/JP2011174401A/en
Publication of JP2011174401A publication Critical patent/JP2011174401A/en
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  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that an abnormal sound is produced by deforming a lower vessel by gas pressure applied to the inside of a hermetic vessel when connecting an accumulator to a compressor to be operated and inclining an outlet pipe to come into contact with another outlet pipe and an inner wall of the hermetic vessel inside the hermetic vessel and that an opening part of the outlet pipe directly faces a plurality of holes provided to a partition plate, and a liquid component of refrigerant flowing therein via the outlet pipe is directly sucked in the compressor through outlet pipe. <P>SOLUTION: Only a lower vessel 3 of an accumulator has plate thickness larger than a barrel part 4 and an upper vessel 2 or contains a rib 10 so that the inclination of the outlet pipe can be suppressed by an inexpensive method. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、多気筒圧縮機に用いられるアキュムレータに関するものである。   The present invention relates to an accumulator used in a multi-cylinder compressor.

従来の多気筒圧縮機用アキュムレータは、図3に示すように、半球面を有する上部容器2と、同じく半球面を有する下部容器3と、円筒状の胴部4と、上部容器1の上方に設けられた入口管5と、圧縮機(図示せず)と接続され前記密閉容器1の下部に設けられた複数の取付孔10a,10bから挿入された複数の出口管6a,6bと、この出口管6a,6bと前記入口管5との間に設置された複数の孔7を有する仕切板8とで構成されている。   As shown in FIG. 3, the conventional accumulator for a multi-cylinder compressor has an upper container 2 having a hemispherical surface, a lower container 3 having the same hemispherical surface, a cylindrical body 4, and an upper container 1. An inlet pipe 5 provided, a plurality of outlet pipes 6a and 6b connected to a compressor (not shown) and inserted from a plurality of mounting holes 10a and 10b provided in the lower part of the sealed container 1, and the outlet It is comprised by the partition plate 8 which has the some hole 7 installed between the pipes 6a and 6b and the said inlet pipe 5. As shown in FIG.

前記構成において、入口管5から流入した冷媒の液成分は、仕切板8に当たった後、この仕切板8に設けられた複数の孔7を通り、一旦、密閉容器1の下部へ溜まった後、気化してから出口管6a,6bよりガス成分として圧縮機へ流出する。   In the above-described configuration, the liquid component of the refrigerant flowing from the inlet pipe 5 hits the partition plate 8, passes through the plurality of holes 7 provided in the partition plate 8, and is once accumulated in the lower portion of the sealed container 1. After vaporization, the gas flows out from the outlet pipes 6a and 6b as a gas component to the compressor.

前記従来の構成では、複数の出口管6a,6bは、密閉容器1の半球面状の下部に複数の取付孔9a,9bを設け、そこから密閉容器1内部に挿入したうえ、ロウ付けなどの方法によって設置固定されていた。   In the conventional configuration, the plurality of outlet pipes 6a and 6b are provided with a plurality of mounting holes 9a and 9b in the lower part of the hemispherical shape of the sealed container 1, inserted into the sealed container 1 from there, and brazed. The installation was fixed by the method.

当該アキュムレータは、圧縮機に接続して運転したときに密閉容器1内部に加えられるガスの圧力によって下部容器3が変形し、出口管6a,6bの傾きが大きくなるという課題があった。   The accumulator has a problem that the lower container 3 is deformed by the pressure of gas applied to the inside of the sealed container 1 when connected to the compressor and the inclination of the outlet pipes 6a and 6b is increased.

これら出口管6a,6bが傾いた状態になると、密閉容器1の内部で出口管6a,6bが互いに接触したり、あるいは密閉容器1の内壁に接触して異常音の原因となることがあった。   When these outlet pipes 6a and 6b are inclined, the outlet pipes 6a and 6b may contact each other inside the sealed container 1 or may contact the inner wall of the sealed container 1 to cause abnormal noise. .

さらに、場合によっては、出口管5a,5bの開口部が仕切板8に設けられた複数の孔7に直接のぞくことになり、入口管4から流入した冷媒の液成分がそのまま出口管5a,5bを経て圧縮機に吸入されるため、気液分離というアキュムレータ本来の機能を果たさず、圧縮機の信頼性を低下させるといった課題を生じていた。   Further, in some cases, the openings of the outlet pipes 5a and 5b are directly looked into the plurality of holes 7 provided in the partition plate 8, and the liquid component of the refrigerant flowing from the inlet pipe 4 is directly used as the outlet pipes 5a and 5b. Therefore, there is a problem in that the accumulator original function of gas-liquid separation is not performed and the reliability of the compressor is lowered.

上記課題を解決する従来技術として、図4に示すように、特許文献1に開示されているアキュムレータが知られている。この技術によれば、アキュムレータの出口管を中間板8に設けられた固定穴9a,9bに挿入、固定することで出口管の倒れを防止するものである(例えば、特許文献1参照)。   As a conventional technique for solving the above problem, an accumulator disclosed in Patent Document 1 is known as shown in FIG. According to this technique, the outlet pipe of the accumulator is inserted into and fixed to the fixing holes 9a and 9b provided in the intermediate plate 8 to prevent the outlet pipe from falling (for example, see Patent Document 1).

特開2006−299943号公報JP 2006-299943 A

しかしながら、前記従来技術では、密閉容器内に別途中間板を溶接固定する必要があり、部品点数及び組立工数の増加によるコストアップの課題があった。   However, in the prior art, it is necessary to separately weld and fix the intermediate plate in the sealed container, and there is a problem of cost increase due to an increase in the number of parts and the number of assembly steps.

本発明は、このような従来の課題を解決するものであり、出口管の傾きのない多気筒圧
縮機用アキュムレータを提供することを目的とする。
The present invention solves such a conventional problem, and an object of the present invention is to provide an accumulator for a multi-cylinder compressor without an inclination of an outlet pipe.

前記従来の課題を解決するために本発明のアキュムレータは、下部容器3のみの強度を向上したことを特徴としている。これによって、冷媒運転中にも下部容器3の変形を抑え、出口管6a,6bの傾きを抑えることができる。また強度向上を下部容器3に限定することで材料費の上昇を最小限に抑えることができる。   In order to solve the conventional problem, the accumulator of the present invention is characterized in that the strength of only the lower container 3 is improved. Thereby, deformation of the lower container 3 can be suppressed even during the refrigerant operation, and the inclination of the outlet pipes 6a and 6b can be suppressed. Further, the increase in material cost can be minimized by limiting the strength improvement to the lower container 3.

本発明の多気筒圧縮機用アキュムレータは、圧縮機に接続して運転した場合にも複数の出口管の傾きを抑え、異常音や圧縮機の信頼性低下といった不具合を防いだ多気筒圧縮機用アキュムレータを低コストで提供することができる。   The accumulator for a multi-cylinder compressor according to the present invention is used for a multi-cylinder compressor that suppresses the inclination of a plurality of outlet pipes even when operated while connected to the compressor, and prevents problems such as abnormal noise and reduced compressor reliability. An accumulator can be provided at low cost.

本発明の実施の形態1におけるアキュムレータの断面図Sectional drawing of the accumulator in Embodiment 1 of this invention 本発明の実施の形態2におけるアキュムレータの下部容器の拡大図The enlarged view of the lower container of the accumulator in Embodiment 2 of this invention 従来のアキュムレータの一例を示す断面図Sectional view showing an example of a conventional accumulator 従来のアキュムレータのもう一つの例を示す断面図Sectional drawing which shows another example of the conventional accumulator 本発明の実施の形態3におけるアキュムレータの下部容器の拡大図The enlarged view of the lower container of the accumulator in Embodiment 3 of this invention 本発明の実施の形態4におけるアキュムレータの下部容器の拡大図The enlarged view of the lower container of the accumulator in Embodiment 4 of this invention

第1の発明は、密閉容器を構成する上部容器と胴部容器と下部容器のうち、下部容器3の板厚を胴部容器及び上部容器の板厚に対し1.3倍以上にしたものである。   1st invention is what made the plate | board thickness of the lower container 3 1.3 times or more with respect to the plate | board thickness of a trunk | drum container and an upper container among the upper container, trunk | drum container, and lower container which comprise an airtight container. is there.

この構成により、冷媒がアキュムレータ内に封入された場合にも下部容器の圧力による変形を抑え、出口管の傾きを抑えることができる。   With this configuration, even when the refrigerant is sealed in the accumulator, deformation due to the pressure of the lower container can be suppressed, and the inclination of the outlet pipe can be suppressed.

第2の発明は、密閉容器を構成する上部容器と胴部容器と下部容器のうち、下部容器3にリブを設置したものである。   2nd invention installs a rib in the lower container 3 among the upper container, trunk | drum container, and lower container which comprise an airtight container.

この構成により、冷媒がアキュムレータ内に封入された場合にも下部容器の圧力による変形を抑え、出口管の傾きを抑えることができる。   With this configuration, even when the refrigerant is sealed in the accumulator, deformation due to the pressure of the lower container can be suppressed, and the inclination of the outlet pipe can be suppressed.

以下、本発明の実施の形態について図面を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(実施の形態1)
図1は、本発明の実施の形態1における多気筒圧縮機用アキュムレータの図である。
(Embodiment 1)
FIG. 1 is a diagram of an accumulator for a multi-cylinder compressor according to Embodiment 1 of the present invention.

図1において、上部容器2と、下部容器3及び胴部4を接続した円筒状の密閉容器1の上方に入口管5と、圧縮機(図示せず)と接続された前記密閉容器1の内部に挿入される複数の出口管6a,6bとが設置されている。また、上記密閉容器のうち下部容器3の板厚を上部容器2および胴部容器4の板厚に対し1.5倍以上になるように構成されている。   In FIG. 1, the inside of the said closed container 1 connected to the inlet pipe 5 and the compressor (not shown) above the cylindrical closed container 1 which connected the upper container 2, the lower container 3, and the trunk | drum 4. A plurality of outlet pipes 6a and 6b are installed. In addition, the thickness of the lower container 3 of the above-described sealed containers is configured to be 1.5 times or more that of the upper container 2 and the body container 4.

上記構成のアキュムレータが圧縮機に接続されて運転を行う場合、アキュムレータ内には冷媒ガスが流入する。密閉容器1内には冷媒ガスの圧力がかかるが、本発明のアキュムレータは下部容器3の板厚を上部容器2および胴部容器4の板厚に対し1.5倍以上の厚さに構成しているため、下部容器3自体の圧力に対する変形量を小さく抑え、下部容器3に溶接固定された出口管6a,6bの傾きを低減、結果として出口管6a,6b同士の接
触を防ぐことができる。
When the accumulator having the above-described configuration is connected to the compressor and operates, refrigerant gas flows into the accumulator. Although the pressure of the refrigerant gas is applied in the sealed container 1, the accumulator of the present invention is configured such that the thickness of the lower container 3 is 1.5 times or more the thickness of the upper container 2 and the body container 4. Therefore, the deformation amount with respect to the pressure of the lower container 3 itself can be kept small, the inclination of the outlet pipes 6a and 6b fixed to the lower container 3 by welding can be reduced, and as a result, contact between the outlet pipes 6a and 6b can be prevented. .

(実施の形態2)
図2は、本発明の実施の形態2における多気筒圧縮機用アキュムレータの図である。
(Embodiment 2)
FIG. 2 is a diagram of an accumulator for a multi-cylinder compressor according to Embodiment 2 of the present invention.

図2において、上部容器2と、下部容器3及び胴部4を接続した円筒状の密閉容器1の上方に入口管5と、圧縮機(図示せず)と接続された前記密閉容器1の内部に挿入れる複数の出口管6a,6bとが設置されている。また、上記密閉容器のうち下部容器3の内部には、変形を抑えるためのリブ10が複数の出口管の設置方向に沿う方向に設置されている。   In FIG. 2, the inside of the said closed container 1 connected to the inlet pipe 5 and the compressor (not shown) above the cylindrical closed container 1 which connected the upper container 2, the lower container 3, and the trunk | drum 4. A plurality of outlet pipes 6a and 6b are installed. Moreover, the rib 10 for suppressing a deformation | transformation is installed in the inside of the lower container 3 among the said airtight containers in the direction in alignment with the installation direction of a some exit pipe | tube.

実施の形態1と同様、上記構成により下部容器3自体の変形を抑え、また下部容器3に溶接固定された出口管6a,6bの傾きを抑えることができる。   As in the first embodiment, the above configuration can suppress the deformation of the lower container 3 itself, and can suppress the inclination of the outlet pipes 6a and 6b fixed to the lower container 3 by welding.

(実施の形態3)
上記リブの形状は図2に示す形状に限定する必要は無く、図5に示す通り圧力容器の外側に設置することも可能である。
(Embodiment 3)
The shape of the rib need not be limited to the shape shown in FIG. 2, and can be installed outside the pressure vessel as shown in FIG.

(実施の形態4)
また、リブを追加するのではなく、図6に示すとおり下部容器3の形状自体を段付きの形状にしても同様の効果が得られる。
(Embodiment 4)
Moreover, the same effect is acquired even if it does not add a rib but makes the shape itself of the lower container 3 stepped shape as shown in FIG.

以上のように、本発明にかかる多気筒圧縮機用アキュムレータは、簡素な構造で、安価でかつ確実出口管の傾きを防止することが可能となるので、空気調和装置や冷蔵庫等の冷凍機器の用途に適用できる。   As described above, the accumulator for a multi-cylinder compressor according to the present invention has a simple structure, is inexpensive, and can reliably prevent the inclination of the outlet pipe. Applicable to usage.

1 密閉容器
2 上部容器
3 下部容器
4 胴部
5 入口管
6a 出口管
6b 出口管
7 仕切り板に設けられた孔
8 仕切り板
9a 取付孔
9b 取付孔
10 リブ
DESCRIPTION OF SYMBOLS 1 Sealed container 2 Upper container 3 Lower container 4 Trunk part 5 Inlet pipe 6a Outlet pipe 6b Outlet pipe 7 Hole provided in the partition plate 8 Partition plate 9a Installation hole 9b Installation hole 10 Rib

Claims (4)

上部容器と下部容器と胴部からなる密閉容器に前記上部容器の上方に入口管を設置し、圧縮機と接続され、前記密閉容器内部に挿入される複数の出口管と、これら出口管と前記入口管との間に複数の孔を有する仕切板を前記上部容器に設置し、下部容器の板厚を、上部容器及び胴部容器の板厚に対し1.3倍以上にしたことを特徴とする多気筒圧縮機用アキュムレータ。 An inlet pipe is installed above the upper container in a sealed container composed of an upper container, a lower container, and a body, and is connected to a compressor, and a plurality of outlet pipes inserted into the sealed container, the outlet pipes, and the A partition plate having a plurality of holes between the inlet pipe is installed in the upper container, and the thickness of the lower container is set to be 1.3 times or more of the thickness of the upper container and the trunk container. Accumulator for multi-cylinder compressors. 下部容器内部にリブを設けたことを特徴とする請求項1記載の多気筒圧縮機用アキュムレータ。 The accumulator for a multi-cylinder compressor according to claim 1, wherein a rib is provided inside the lower container. 下部容器外側にリブを設けたことを特徴とする請求項1記載の多気筒圧縮機用アキュムレータ。 2. The accumulator for a multi-cylinder compressor according to claim 1, wherein a rib is provided outside the lower container. 複数の出口管の方向に沿う方向に段を設けた形状を有する下部容器で構成されたことを特徴とする請求項1記載の多気筒圧縮機用アキュムレータ。 2. The accumulator for a multi-cylinder compressor according to claim 1, wherein the accumulator is composed of a lower container having a shape provided with a step in a direction along a plurality of outlet pipes.
JP2010038343A 2010-02-24 2010-02-24 Accumulator for multiple cylinder compressor Pending JP2011174401A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099025A1 (en) * 2016-11-29 2018-06-07 广东美芝制冷设备有限公司 Liquid reservoir and compressor having same
WO2020181764A1 (en) * 2019-03-13 2020-09-17 珠海格力电器股份有限公司 Gas-liquid separator, compressor assembly and air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099025A1 (en) * 2016-11-29 2018-06-07 广东美芝制冷设备有限公司 Liquid reservoir and compressor having same
WO2020181764A1 (en) * 2019-03-13 2020-09-17 珠海格力电器股份有限公司 Gas-liquid separator, compressor assembly and air conditioner

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