JPS6383561A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPS6383561A JPS6383561A JP22904486A JP22904486A JPS6383561A JP S6383561 A JPS6383561 A JP S6383561A JP 22904486 A JP22904486 A JP 22904486A JP 22904486 A JP22904486 A JP 22904486A JP S6383561 A JPS6383561 A JP S6383561A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- air conditioner
- capillary tube
- accumulator
- 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.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 14
- 239000010721 machine oil Substances 0.000 description 13
- 239000003507 refrigerant Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000010726 refrigerant oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、室内側と室外側のユニットを有する分離形空
気調和機のようなヒートポンプ方式の空気調和機に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat pump air conditioner such as a separate air conditioner having an indoor unit and an outdoor unit.
従来の技術
近年、分離形空気調和機は建築構造ならびに空気調和機
の設置方法により室内側と室外側のユニット間を結合す
る配管の長さが長くなってきている。BACKGROUND OF THE INVENTION In recent years, in separate air conditioners, the length of piping connecting indoor and outdoor units has become longer due to building structures and air conditioner installation methods.
以下図面を参照しながら、上述した従来の空気調和機の
一例について説明する。第２図は従来の空気調和機の冷
凍ティクル図を示すものである。An example of the conventional air conditioner mentioned above will be described below with reference to the drawings. FIG. 2 shows a refrigeration tickle diagram of a conventional air conditioner.
第２図において、１は圧縮機、２は四方弁、３は室外側
熱交換器、４は逆上弁、５は暖房用キャピラリーチュー
ブ、６は接続配管、７は冷房用キャピラリーチューブ、
８は室内側熱交換器、９は接続配管、１ｏはアキューム
レータであり、分離形空気調和機では少なくとも室内側
熱交換器８と冷房用キャピラリーチューブ７が室内側ユ
ニットに設けられ、室内側ユニットに設けられない各部
材が室外側ユニットに設けられている。In Fig. 2, 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger, 4 is a reverse valve, 5 is a heating capillary tube, 6 is a connecting pipe, 7 is a cooling capillary tube,
8 is an indoor heat exchanger, 9 is a connection pipe, and 1o is an accumulator.In a separate air conditioner, at least the indoor heat exchanger 8 and the cooling capillary tube 7 are provided in the indoor unit; Each member that is not provided is provided in the outdoor unit.
以上のように構成された空気調和機について、以下その
動作について説明する。The operation of the air conditioner configured as above will be described below.
まず、このような冷凍サイクルの空気調和機は冷房運転
時に圧縮機１から吐出された高温高圧の冷媒とこの冷媒
に混入された潤滑用の冷凍機油が四方弁２を経て室外側
熱交換器３に至り、ここで熱交換されて高温高圧の液冷
媒となり、この液冷媒は流入抵抗の大きい暖房用キャピ
ラリーチューブ側へはほとんど流れず、逆止弁４を流れ
て接続配管６を経て冷房用キャビラ”リーチュープ７で
減圧され、室内側熱交換器に至り、ここで蒸発して接続
配管９を通り四方弁２、アキュームレータ１０を経て再
び圧縮機１に吸入される循環サイクルを形成している。First, in such a refrigeration cycle air conditioner, high-temperature, high-pressure refrigerant discharged from the compressor 1 during cooling operation and refrigerating machine oil for lubrication mixed with this refrigerant pass through the four-way valve 2 and are transferred to the outdoor heat exchanger 3. At this point, heat is exchanged to form a high-temperature, high-pressure liquid refrigerant, and this liquid refrigerant hardly flows into the heating capillary tube, which has a large inflow resistance, but flows through the check valve 4, through the connecting pipe 6, and into the cooling cabinet. It is depressurized in the Lee tube 7, reaches the indoor heat exchanger, evaporates there, passes through the connecting pipe 9, passes through the four-way valve 2, the accumulator 10, and is sucked into the compressor 1 again, forming a circulation cycle.
発明が解決しようとする問題点
しかしながら、上記のような構成では、接続配管６，８
が長くなった場合には、圧縮機１の連続運転中に、圧縮
機１から吐出された冷媒に混入された冷凍機油も絶えず
吐出される。特に起動時においては運転中に比べて多く
吐出されるので、この冷凍機油が冷凍サイクルを循環し
て圧縮機１に戻って来るまでに時間がかかり、圧縮機１
内の冷凍機油が少なくなって、圧縮機の潤滑不良を起し
、摺動部の焼付などを起すという問題点を有していた。Problems to be Solved by the Invention However, in the above configuration, the connecting pipes 6, 8
If the period becomes long, the refrigerating machine oil mixed in the refrigerant discharged from the compressor 1 is also constantly discharged during continuous operation of the compressor 1. Particularly at startup, more oil is discharged than during operation, so it takes time for this refrigerating machine oil to circulate through the refrigeration cycle and return to the compressor 1.
The problem was that the amount of refrigerating machine oil in the compressor became low, causing poor lubrication of the compressor and seizure of the sliding parts.
また、このような問題は暖房運転時にも同様である。Moreover, such a problem also occurs during heating operation.
本発明は上記問題点の冷凍機油の不足による圧縮機の潤
滑不足を防止できるようにした空気調和機を提供するも
のである。The present invention provides an air conditioner that can prevent the above-described problem of insufficient lubrication of the compressor due to lack of refrigerating machine oil.
問題点を解決するための手段
上記問題点を解決するために本発明の空気調和機は、圧
縮機の吐出側と四方弁の間に設けた油分離器とアキュー
ムレータを電磁弁とキャピラリーチューブとを並列に接
続するバイパス路を備えたものである。Means for Solving the Problems In order to solve the above problems, the air conditioner of the present invention replaces the oil separator and accumulator provided between the discharge side of the compressor and the four-way valve with a solenoid valve and a capillary tube. It is equipped with a bypass path that is connected in parallel.
作 用
本発明は上記した構成によって、圧縮機の連続運転にお
いては、キャピラリーチューブを介して、油分離器に溜
まっている冷凍機油をバイパス路からアキュームレータ
に戻す。また、起動時においては、前記キャピラリーチ
ューブと所定時間だけ開く電磁弁を通し、油分離器に溜
まっている冷凍機油をバイパス路からアキュームレータ
に戻すことにより、冷凍機油の不足による圧縮機の潤滑
不良を防止できる。According to the above-described configuration, the present invention returns the refrigerating machine oil accumulated in the oil separator to the accumulator from the bypass path through the capillary tube during continuous operation of the compressor. Furthermore, at startup, the refrigerating machine oil accumulated in the oil separator is returned to the accumulator from the bypass path through the capillary tube and the solenoid valve that opens for a predetermined time, thereby preventing poor lubrication of the compressor due to a lack of refrigerating machine oil. It can be prevented.
実施例
以上本発明の一実施例の空気調和機について、図面を参
照しながら説明する。Embodiment An air conditioner according to an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の実施例における空気調和機の冷凍サイ
クル図を示すもので、第２図と同一部分は同符号をつけ
てこれらの説明を省略する。１１は油分離器であり、こ
の油分離器１１は冷凍サイクルの圧縮機１の吐出側と西
方弁２の間にこれらと上部が接続されて設けられている
。１２は油分離器１１の下部とアキュームレータ１ｏを
接続するバイパス路、１３．１４はバイパス路１２の途
中に設けられたキャピラリーチューブと電磁弁である。FIG. 1 shows a refrigeration cycle diagram of an air conditioner according to an embodiment of the present invention, and the same parts as in FIG. 2 are given the same reference numerals and their explanation will be omitted. Reference numeral 11 denotes an oil separator, and the oil separator 11 is provided between the discharge side of the compressor 1 of the refrigeration cycle and the west valve 2, with an upper portion connected thereto. 12 is a bypass path connecting the lower part of the oil separator 11 and the accumulator 1o, and 13.14 is a capillary tube and a solenoid valve provided in the middle of the bypass path 12.
以上のように構成された空気調和機について、以下第１
図を用いてその動作を説明する。Regarding the air conditioner configured as above, the following is the first part.
The operation will be explained using figures.
圧縮機１の連続運転中においては、圧縮機１から吐出さ
れた冷媒と冷媒に混入された冷凍機油は油分離器１１に
より冷媒と冷凍機油に分離される。During continuous operation of the compressor 1, the refrigerant discharged from the compressor 1 and the refrigerating machine oil mixed in the refrigerant are separated into the refrigerant and the refrigerating machine oil by the oil separator 11.
冷媒は四方弁２を通り凝縮器となっている熱交換器へ流
れ、冷凍機油は油分離器１１に溜まり、バイパス路を経
由しキャピラリーチューブを介してアキュームレータに
戻され、蒸発器となっている熱交換器から戻って来た低
温低圧の冷媒ガスと共に圧縮機１に戻される。The refrigerant flows through the four-way valve 2 to the heat exchanger which serves as a condenser, and the refrigerating machine oil collects in the oil separator 11 and is returned to the accumulator via the bypass path and the capillary tube, which serves as the evaporator. It is returned to the compressor 1 together with the low-temperature, low-pressure refrigerant gas that has returned from the heat exchanger.
さらに、起動時においては、圧縮機１から吐出される冷
凍機油が前記運転中に比べて多く吐出されるため、油分
離器１１内に溜まる冷媒機油が多くなるので、前記バイ
パス路１２の途中に設けられた電磁弁１４を所定時間（
吐出圧力が安定するまでの時間で通常３分程度である）
だけ開けることにより圧縮機１に冷凍機油が補充される
。Furthermore, at startup, more refrigerant oil is discharged from the compressor 1 than during the operation, so more refrigerant oil accumulates in the oil separator 11. The provided solenoid valve 14 is operated for a predetermined time (
(It usually takes about 3 minutes until the discharge pressure stabilizes.)
Refrigerating machine oil is replenished into the compressor 1 by opening the compressor 1.
さらに、この実施例の冷凍サイクルは上述のように構成
したので、空気調和機の停止時に接続配管８に溜まって
いた冷媒が圧縮機１の吐出口側に自重によって戻って来
ても、油分離器１１ならびにバイパス路１２とバイパス
路１２の途中に設けられたキャピラリーチューブ１３を
介してアキュームレータ１０に溜められる。Furthermore, since the refrigeration cycle of this embodiment is configured as described above, even if the refrigerant that had accumulated in the connecting pipe 8 returns to the discharge port side of the compressor 1 due to its own weight when the air conditioner is stopped, the oil can be separated. The liquid is stored in the accumulator 10 via the capillary tube 13 provided in the middle of the bypass path 12 and the bypass path 12.
以上のように本実施例によれば、圧縮機１の吐出側と四
方弁２の間に設けた油分離器１１とアキュームレータ１
０を所定時間開く電磁弁１４とキャピラリーチューブ１
３とを並列に接続するバイバス路１２を設けることによ
り、冷凍機油の不足による圧縮機１の潤滑不足を防止で
きる。さらに、起動時の圧縮機１の弁の破損を防ぐこと
もできる。As described above, according to this embodiment, the oil separator 11 and the accumulator 1 are provided between the discharge side of the compressor 1 and the four-way valve 2.
Solenoid valve 14 and capillary tube 1 that open 0 for a predetermined time
By providing the bypass path 12 that connects the compressor 3 in parallel, it is possible to prevent insufficient lubrication of the compressor 1 due to a shortage of refrigerating machine oil. Furthermore, damage to the valve of the compressor 1 at the time of startup can also be prevented.
また、実施例において電磁弁１４とキャピラリーチュー
ブ１３とを並列に接続としたが、電磁弁１４とキャピラ
リーチューブ１３をそれぞれのバイパス路を設けるとし
てもよい。Further, in the embodiment, the solenoid valve 14 and the capillary tube 13 are connected in parallel, but the solenoid valve 14 and the capillary tube 13 may be provided with respective bypass paths.
発明の効果
以上のように本発明は、圧縮機の吐出側と四方弁の間に
設けた油分離器とアキュームレータを電磁弁とキャピラ
リーチューブとを並列に接続するバイパス路を設けるこ
とにより、室内側と室外側のユニットの設置距離すなわ
ち、これらの接続配管を長くすることが簡単にできる。Effects of the Invention As described above, the present invention provides an oil separator and an accumulator provided between the discharge side of the compressor and the four-way valve by providing a bypass path that connects the solenoid valve and the capillary tube in parallel. In other words, it is easy to lengthen the installation distance of the unit on the outdoor side.
また、信頼性も高く、安価に提供することができる。Furthermore, it is highly reliable and can be provided at low cost.
第１図は本発明の一実施例における空気調和機の冷凍サ
イクル図、第２図は従来の空気調和機の冷凍サイクル図
である。
１・・・・・・圧縮機、２・・・・・・四方弁、３・・
・・・・室外側熱交換器、５・・・・・・暖房用キャピ
ラリーチューブ、７・・・・・・冷房用キャピラリーチ
ューブ、８・・・・・・室内側熱交換器、１０・・・・
・・アキュームレータ、１１・・・・・・油分離器、１
２・・・・・・バイパス路、１３・・・・・・キャピラ
リーチューブ、１４・・・・・・電磁弁。FIG. 1 is a refrigeration cycle diagram of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a refrigeration cycle diagram of a conventional air conditioner. 1... Compressor, 2... Four-way valve, 3...
... Outdoor heat exchanger, 5 ... Capillary tube for heating, 7 ... Capillary tube for cooling, 8 ... Indoor heat exchanger, 10 ...・・・
...Accumulator, 11...Oil separator, 1
2... Bypass path, 13... Capillary tube, 14... Solenoid valve.
Claims (1)
交換器およびアキュームレータを環状に接続した冷凍サ
イクルを有し、上記圧縮機の吐出側と四方弁の間に設け
た油分離器と上記アキュームレータを電磁弁とキャピラ
リーチューブとを並列に接続するバイパス路を備えたこ
とを特徴とする空気調和機。It has a refrigeration cycle in which a compressor, a four-way valve, an outdoor heat exchanger, a throttling device, an indoor heat exchanger, and an accumulator are connected in a ring, and an oil separator installed between the discharge side of the compressor and the four-way valve. An air conditioner comprising a bypass path that connects the accumulator, a solenoid valve, and a capillary tube in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22904486A JPS6383561A (en) | 1986-09-26 | 1986-09-26 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22904486A JPS6383561A (en) | 1986-09-26 | 1986-09-26 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6383561A true JPS6383561A (en) | 1988-04-14 |
Family
ID=16885861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22904486A Pending JPS6383561A (en) | 1986-09-26 | 1986-09-26 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6383561A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318320A (en) * | 1989-06-16 | 1991-01-25 | Sanyo Electric Co Ltd | Drink supplier |
| JPH03122460A (en) * | 1989-10-04 | 1991-05-24 | Daikin Ind Ltd | Operating controller for refrigerating machine |
-
1986
- 1986-09-26 JP JP22904486A patent/JPS6383561A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318320A (en) * | 1989-06-16 | 1991-01-25 | Sanyo Electric Co Ltd | Drink supplier |
| JPH03122460A (en) * | 1989-10-04 | 1991-05-24 | Daikin Ind Ltd | Operating controller for refrigerating machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4123829B2 (en) | Refrigeration cycle equipment | |
| JP4013261B2 (en) | Refrigeration equipment | |
| JP5229476B2 (en) | Refrigeration apparatus and control method thereof | |
| JP4640142B2 (en) | Refrigeration equipment | |
| KR100846567B1 (en) | Refrigerating apparatus | |
| JPS60245960A (en) | Refrigeration cycle of air conditioner | |
| JPH0232547B2 (en) | ||
| EP1120611A1 (en) | Refrigerating device | |
| JP2010139155A (en) | Refrigeration apparatus | |
| JP2012242081A (en) | Air conditioner | |
| EP3431903A1 (en) | Air-conditioning apparatus and method for operating the same | |
| JP4415451B2 (en) | Refrigeration equipment | |
| CN112648754A (en) | Air conditioner circulating system and circulating method thereof | |
| JP2000346474A (en) | Refrigerator | |
| JPS6383561A (en) | Air conditioner | |
| CN215951838U (en) | Refrigerating system and household appliance | |
| CN213238035U (en) | Machine room cooling unit integrated with fluorine pump | |
| CN110220258B (en) | Air conditioning system, and operation control method and device of air conditioning system | |
| KR101416934B1 (en) | Air conditioning system | |
| JPS60245966A (en) | Air conditioner | |
| JPH0350958B2 (en) | ||
| JPH04320763A (en) | Freezer | |
| JP2001280719A (en) | Refrigerating system | |
| JPS60245967A (en) | Air conditioner | |
| JP2024017109A (en) | Refrigeration cycle device |