JPH0350458A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH0350458A JPH0350458A JP18265589A JP18265589A JPH0350458A JP H0350458 A JPH0350458 A JP H0350458A JP 18265589 A JP18265589 A JP 18265589A JP 18265589 A JP18265589 A JP 18265589A JP H0350458 A JPH0350458 A JP H0350458A
- Authority
- JP
- Japan
- Prior art keywords
- way valve
- heat exchanger
- refrigerant
- bypass circuit
- state
- 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
- 239000003507 refrigerant Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000004781 supercooling Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract 4
- 230000005514 two-phase flow Effects 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、空冷ヒートボ／プ空気調和機の暖房運転時の
吐出ガスｄ度、吐出圧力制御に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to control of discharge gas degree and discharge pressure during heating operation of an air-cooled heat pump air conditioner.
従来の装置は吐出ガス濫度又は吐出圧力が上昇した場合
に、＃儀器間の液配管からアキエムレータに至る液バイ
パス回路を開き、吸込側へ液冷媒を すことにより、吐
出ガス温度又は吐出圧力を低下させる手段をとって訃り
、Ｉｅ張器関８液配管の内部の冷媒が満液Ｄ状態として
バイパス回路の滝量ＡＭ用キャビ２りの長さ、太さを設
定してある。Conventional equipment reduces the discharge gas temperature or discharge pressure by opening the liquid bypass circuit from the liquid piping between the appliances to the Akiemulator and supplying liquid refrigerant to the suction side when the discharge gas temperature or discharge pressure increases. The length and thickness of the cavity 2 for the flow rate AM of the bypass circuit are set so that the refrigerant inside the 8-liquid piping of the Ie tensioner is in a full liquid D state.
上記従来技術は、上記の液バイパス回路のバイパス１ｋ
調整用のキャビ２りは、バイパス回路入口Ｄ版配管内の
冷媒がｃＡ液の状態にて所定の冷媒量が流れるように設
定してある。The above-mentioned conventional technology has a bypass 1k of the above-mentioned liquid bypass circuit.
The adjustment cavity 2 is set so that a predetermined amount of refrigerant flows in the bypass circuit inlet D pipe in the form of cA liquid.
しかし、バイパス回路入口の液配管内Ｄ冷媒が、冷庫サ
イクル内の冷媒ガスが不足した時、室内外機Ｄ高低差が
あり抵抗がついた時等に、気泡が混じった気液二相流と
なっている場合には、パイ，，，．回路に設けてあるキ
ャビラリが所定Ｄ 冷媒ｔを通すことが出来ず、圧縮機
・υ吐出ガス温度又は圧力を十分低下できないと言う点
について配遭がな濾れてｐらず、冷凍サイクルを適正に
維持できない場合があると言う問題があった。However, when the refrigerant D in the liquid pipe at the inlet of the bypass circuit runs out of refrigerant gas in the refrigerator cycle, or when there is resistance due to a height difference between the indoor and outdoor units D, a gas-liquid two-phase flow containing bubbles occurs. If it is, then pi,,,. The cavillary installed in the circuit cannot pass the specified refrigerant, and the temperature or pressure of the discharged gas from the compressor cannot be sufficiently lowered. There was a problem that there were cases where it could not be maintained.
本発明は、上記族バイパス回路のバイパスｔｖ安定化を
図ることを目的とし、冷媒の不足時、室内外機に高低差
がある時等に、肢配菅が気相二相流の場合の安定暖房運
転が可能な空冷ヒートボンプ式空気調和機を提供するこ
とにある。The purpose of the present invention is to stabilize the bypass tv of the above-mentioned group bypass circuit, and to stabilize the bypass tv when the limb distribution pipe is a gas phase two-phase flow when there is a shortage of refrigerant, when there is a difference in height between the indoor and outdoor units, etc. To provide an air-cooled heat pump type air conditioner capable of heating operation.
上記目的を達成するため、バイパス回路入口で気版二相
流状態Ｄ冷媒が、バイパス回路に入った後で二方弁、キ
ャビラリを通る前に完全な液状態になるように、気相二
相流Ｄ冷媒を冷却するためにバイパス回路の途中に過冷
却用熱交換器を設けたもってある。In order to achieve the above objective, the refrigerant in the gas phase two-phase flow state D at the inlet of the bypass circuit becomes a complete liquid state after entering the bypass circuit and before passing through the two-way valve and the cavity. In order to cool down the flow D refrigerant, a supercooling heat exchanger is provided in the middle of the bypass circuit.
上記過冷却用熱交換器は、膨張器間Ｄ液配管より分岐し
た液バイパス回路の途中で、且つ、二方弁かよびキャビ
ラリの上流側へ設けてあり、液配管より分岐して流れた
冷媒を冷却することが出来る。これによって膨張器間７
）戚配管ρ内部の冷媒が気液二相流状態であっても、バ
づパス回路へ分岐して入ってきた気液二相流Ｄ冷媒を冷
却して完全な版状態でバイパス回路の流量調差用キャピ
２りに迭りこむことが可能となり、所定の冷媒流量を確
保でき、冷凍サイクルの伏悪を適正に？５１１ 脚する
ことが出来る。The above-mentioned subcooling heat exchanger is installed in the middle of the liquid bypass circuit branched from the inter-expander D liquid pipe and upstream of the two-way valve and the cavity. can be cooled. This allows the expander to
) Even if the refrigerant inside the pipe ρ is in a gas-liquid two-phase flow state, the gas-liquid two-phase flow D refrigerant that branches into the bypass circuit and enters is cooled and the flow rate in the bypass circuit is maintained in a complete state. It is now possible to fit into the adjustment cap 2, ensuring a predetermined refrigerant flow rate and properly controlling the refrigeration cycle. 511 I can do leg work.
以下、本発明の−実施′Ｉｉ１１を第１図を参照して説
明する。第１図は圧縮機ｌ、西方弁８、室円，＾交換器
８、冷暖房用ｇ張器６、暖房用膨張器？、室外熱交換器
虫、アキエムレータ２を配管で順次接続して構成される
冷凍サイクルを示す。膨張器６釦よび７Ｄ間Ｄ液配蕾よ
り分岐したバイパス回路は、一度室外熱交換器４の中に
設けてある過冷却用熱交換器５を通過した後、電磁二万
弁ｌ２、バ１バスｋＡ整用キャビラリチューブｌ３を介
して、西方弁８とアキエムレータ２の間の配管へ接続さ
れている。Hereinafter, an implementation 'Ii11 of the present invention will be explained with reference to FIG. Figure 1 shows the compressor l, west valve 8, chamber ring, exchanger 8, cooling and heating g tensioner 6, and heating expander? , shows a refrigeration cycle configured by sequentially connecting an outdoor heat exchanger and an Akiemulator 2 with piping. The bypass circuit branched from the expander button 6 and the D liquid distribution between button 7D once passes through the supercooling heat exchanger 5 provided in the outdoor heat exchanger 4, and then passes through the electromagnetic valve 12 and the valve 1. The bus kA is connected to the piping between the west valve 8 and the Akie emulator 2 via the maintenance cabillary tube l3.
上記電磁升ｌ２は、圧縮機ＬＤ吐出配管へ取り付けられ
ている、吐出ガス温度倹出器９および圧力検出器１０か
らＤ信号を制御器ｌｌＫ取り込み、制御器１１よりの信
号によＯＩＡ閉を行うようになってｐｖ、吐出ガス温度
又は圧力が異常に上昇した場合４磁弁ｌ２を開き、高圧
１４ｌｌ液冷媒を圧縮機Ｄ吸入側へバイパスさせること
によって、吐出ガスの圧力および温度を低Ｆさせて冷凍
サイクルＤ状態を適正に利呻するようνこなっている。The electromagnetic cell 12 receives the D signal from the discharge gas temperature extractor 9 and the pressure detector 10 attached to the compressor LD discharge pipe to the controller 11K, and closes the OIA according to the signal from the controller 11. If the PV, discharge gas temperature or pressure rises abnormally, open the 4-magnetic valve 12 and bypass the high pressure 14 liter liquid refrigerant to the suction side of the compressor D to lower the pressure and temperature of the discharge gas. This is done so that the refrigeration cycle D state can be properly controlled.
こＤバイパス纏せる冷媒量はバイパス回路用キャピラリ
テエープ１３Ｖ？：よりｉＶＩＩＩ 呻され、上記キャ
ビラリテユープ１３の径訟よび＆さはキャビラリテエー
プ１８の人口が液冷媒の状態Ｖこ決定されている。Is the amount of refrigerant that can be collected in this D bypass circuit capillary pipe 13V? From this, the diameter of the above-mentioned cabillary pipe 13 and the population of the capillary pipe 18 are determined to be in the liquid refrigerant state.
したがって上記キャビラリテユープｌ３７）入口が気戒
二相流のままではキャビラリテユープを通る冷媒量は減
ってしまうため、冷凍サイクルＤ状態を適正な状態に十
分制一できなくなる。本発明では、バイパス回路用キャ
ビラリチューブｌ３７）人口の状態を常に液冷媒の状態
に保てるように、液配管より分岐したバイパス圏路内の
冷媒を過冷却用熱交換器５を通して冷却して液冷媒の状
態にしたのちキャビラリチュープｌ３へ導くようになっ
ている。Therefore, if the inlet of the above-mentioned cabilary unit (137) remains in air-controlled two-phase flow, the amount of refrigerant passing through the cavity unit will decrease, making it impossible to sufficiently control the state of the refrigeration cycle D to an appropriate state. In the present invention, the refrigerant in the bypass circuit branched from the liquid piping is cooled through the subcooling heat exchanger 5 to liquid refrigerant so that the state of the bypass circuit cabillary tube l37) can always be maintained in a liquid refrigerant state. After the refrigerant is turned into a refrigerant state, it is led to the cabillary tube 13.
本実施−１によれば、液配管が冷凍サイクル内Ｄ冷媒量
不足等により気液二相流状態であっても、いつも所定Ｄ
液バイパス冷媒着を確保することができる。According to this implementation-1, even if the liquid piping is in a gas-liquid two-phase flow state due to insufficient amount of D refrigerant in the refrigeration cycle, the predetermined D
Liquid bypass refrigerant adhesion can be ensured.
本発明によれば、冷媒不足時等の暖房運転に分いて、吐
出ガス温度，吐出ガス、圧力Ｄ上昇を防止し、運転範囲
を拡大することができ、空気Ａ和機Ｄ信順性を向上する
ことができる。According to the present invention, during heating operation when there is a refrigerant shortage, etc., it is possible to prevent increases in discharge gas temperature, discharge gas, and pressure D, expand the operating range, and improve reliability of air conditioning machine D. can do.
ｇｌ図は本発明Ｄ一実姉列の冷ｌｉサイ図である。
１・・・圧縮機
内浦交良器
用熱交撲器
用膨張器
出器
仰４
−ブ。
２・・・アキュムレータ ３・・・室４・・・室外熱
交換器 ５・・・過冷却６・・・冷暖房用膨’４６
７・・・暖房８・・・四方弁 ９・・・吐出ガス
温度検１０・・・吐出ガス圧力検出器 １１・・・制
１２・・・電滋弁 １８・・・キャビラリチュクル系
統
竿１口
ａ
ｔｏ
吋ρがスＡ／７屓ｅ巻
１１
砂１祁Ｙ艦The GL diagram is a cold li diagram of the D series of the present invention. 1... Expander outlet for heat exchanger for compressor inner chamber exchanger 4-bu. 2...Accumulator 3...Room 4...Outdoor heat exchanger 5...Supercooling 6...Air conditioning expansion '46
7...Heating 8...Four-way valve 9...Discharged gas temperature detection 10...Discharged gas pressure detector 11...Control 12...Electric fuel valve 18...Cabiral fuel system rod 1 mouth a to 吋ρ がす A/7 屓 e volume 11 Suna 1 Qi Y ship
Claims (1)
用膨張器、室内熱交換器を配管接続して冷凍サイクルを
形成し、冷暖房用膨張器から暖房用膨張器の管路を分岐
し、四方弁からアキュムレータの管路に至るバイパス管
路を形成する空気調和機において、バイパス管路に室外
熱交換器に設けられた過冷却用熱交換器を経て、二方弁
、キャピラリーチューブを設け、圧縮機吐出配管に吐出
温度検出器および吐出圧力検出器を設け、両検出の検出
信号を制御器に接続し、制御器と上記二方弁を制御器か
ら二方弁に開閉信号を送るように接続し、暖房運転時吐
出温度及び吐出圧力の上昇を検出器で検知し、制御器に
伝達し、制御器から二方弁に信号を伝達し二方弁を開路
し、液冷媒の一部を過冷却用熱交換器を経て圧縮器の吸
込側に送給することを特徴とする空気調和機。The compressor, four-way valve, outdoor heat exchanger, heating expander, cooling/heating expander, and indoor heat exchanger are connected via piping to form a refrigeration cycle, and the pipe line for the heating expander is branched from the cooling/heating expander. In an air conditioner that forms a bypass line from a four-way valve to an accumulator line, a two-way valve and a capillary tube are connected to the bypass line through a supercooling heat exchanger installed in an outdoor heat exchanger. A discharge temperature detector and a discharge pressure detector are installed in the compressor discharge piping, the detection signals of both detections are connected to the controller, and the controller and the above two-way valve are sent open/close signals from the controller to the two-way valve. The detector detects the rise in discharge temperature and discharge pressure during heating operation and transmits the detected data to the controller.The controller transmits a signal to the two-way valve, which opens the two-way valve and turns off the liquid refrigerant. An air conditioner characterized in that part of the air is supplied to the suction side of a compressor via a supercooling heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18265589A JPH0350458A (en) | 1989-07-17 | 1989-07-17 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18265589A JPH0350458A (en) | 1989-07-17 | 1989-07-17 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0350458A true JPH0350458A (en) | 1991-03-05 |
Family
ID=16122118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18265589A Pending JPH0350458A (en) | 1989-07-17 | 1989-07-17 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350458A (en) |
-
1989
- 1989-07-17 JP JP18265589A patent/JPH0350458A/en active Pending
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