JPS591958A - Heat pump type heating apparatus - Google Patents
Heat pump type heating apparatusInfo
- Publication number
- JPS591958A JPS591958A JP11046082A JP11046082A JPS591958A JP S591958 A JPS591958 A JP S591958A JP 11046082 A JP11046082 A JP 11046082A JP 11046082 A JP11046082 A JP 11046082A JP S591958 A JPS591958 A JP S591958A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- compressor
- refrigerant
- liquid separator
- 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.)
- Granted
Links
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
- 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
- F25B2400/13—Economisers
-
- 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
- F25B2400/23—Separators
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Central Heating Systems (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、と−トポンプ式暖房装置に関し、特に気液分
離器を備え、該気液分離器で分離された中間圧ガス冷媒
を圧縮機の圧縮行程中にインジェクションするようにし
た中間圧ガスインジェクションタイプのものに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pump-type heating system, and more particularly, to a tomato pump type heating device, which is equipped with a gas-liquid separator, and injects intermediate-pressure gas refrigerant separated by the gas-liquid separator during the compression stroke of a compressor. This invention relates to an intermediate pressure gas injection type.
従来、このような中間圧ガスインジェクションタイプの
ヒートポンプ式暖房装置は、圧縮機と、凝縮器としての
車内熱交換器と、キャピラリチューブ等よりなる膨張機
構と、該膨張機構の中間に配設された気液分離器と、蒸
発器としての室外熱交換器とを備え、圧縮機から吐出さ
れたガス冷媒を室内熱交換器で凝縮したのち膨張機構で
減圧し、その間で気液分離器でガス冷媒と液冷媒に分離
して、中間圧のガス冷媒を前記圧縮機の圧縮行程中にイ
ンジェクションする一方、液冷媒を室外熱交換器で蒸発
した後前記圧縮機へ吸入し、該圧縮機で上記中間圧ガス
冷媒と共に圧縮するというサイクルを繰シ返すことによ
り、上記中間圧ガス冷媒による冷媒循環量の増大により
暖房能力の向上を図るようにしたものである（実開昭４
９−１１１２５２号公報参照）。Conventionally, such an intermediate-pressure gas injection type heat pump type heating device has a compressor, an in-vehicle heat exchanger as a condenser, an expansion mechanism consisting of a capillary tube, etc., and a system installed between the expansion mechanism. Equipped with a gas-liquid separator and an outdoor heat exchanger as an evaporator, the gas refrigerant discharged from the compressor is condensed in the indoor heat exchanger and then reduced in pressure by the expansion mechanism. The intermediate-pressure gas refrigerant is injected into the compressor during the compression stroke, while the liquid refrigerant is evaporated in an outdoor heat exchanger and then sucked into the compressor. By repeating the cycle of compression together with the pressure gas refrigerant, heating capacity is improved by increasing the amount of refrigerant circulated by the intermediate pressure gas refrigerant.
9-111252).
しかるに、上記従来のものでは、圧縮機内のガス冷媒の
もつ熱量の一部が圧縮機本体から外部へ放熱すること、
および圧縮機と室内熱交換器との間の冷媒通路を流れる
高温冷媒の熱量が外部へ放熱することにより、ヒートロ
スとなり、暖房能力の向上を十分に図れないという間粗
があった。特に、四路切換弁を備えて該四路切換弁によ
り暖房運転と冷媒運転とを切換えるようにしたヒートポ
ンプ式冷暖房装置では、暖房運転時、該四路切換弁の内
部において圧縮機より吐出された高温冷媒の熱量が、室
外熱交換器より流入した低温冷媒との大きな温度差によ
り多量に吸熱されて、高温冷媒の大きなヒートロスによ
り暖房能力の低下が大きいという不具合があった。However, in the above conventional system, a part of the heat of the gas refrigerant in the compressor is radiated from the compressor body to the outside.
Furthermore, the amount of heat of the high-temperature refrigerant flowing through the refrigerant passage between the compressor and the indoor heat exchanger is radiated to the outside, resulting in heat loss, and the heating capacity cannot be sufficiently improved. In particular, in a heat pump air-conditioning system that is equipped with a four-way switching valve and is configured to switch between heating operation and refrigerant operation using the four-way switching valve, during heating operation, the air discharged from the compressor inside the four-way switching valve is There was a problem in that a large amount of heat was absorbed by the high-temperature refrigerant due to the large temperature difference with the low-temperature refrigerant flowing in from the outdoor heat exchanger, and the heating capacity was greatly reduced due to the large heat loss of the high-temperature refrigerant.
そこで、本発明ではかかる諸点に鑑みてなされたもので
あり、圧縮機本体および該圧縮機吐出口と室内熱交換器
との間の冷媒通路からの放出熱を気液分離器に袷熱し、
中間圧ガス冷媒発生量を増加させることにより、ヒート
ロスとして外部へ放出される熱量を回収利用して暖房能
力の向上を図ることを目的とするものである。Therefore, the present invention has been made in view of these points, and the heat released from the compressor body and the refrigerant passage between the compressor discharge port and the indoor heat exchanger is transferred to a gas-liquid separator, and
The purpose is to improve the heating capacity by increasing the amount of intermediate pressure gas refrigerant generated and recovering and utilizing the amount of heat released to the outside as heat loss.
この目的を達成するため、本発明の構成は、圧縮機と、
凝縮器と、膨張機構および該膨張機構の中間部に配設さ
れた気液分離器と、蒸発器とを備え、前記気液分離器で
分離されたガス冷媒を圧縮機°の圧縮行程中にインジェ
クションするようにしたヒートポンプ式暖房装置におい
て、前記圧縮機の吐出ガスと前記気液分離器上流側の液
冷媒とを熱交換する熱交換部を設けることにより、気液
分離器における中間圧ガス発生量を増加させるようにし
たものである。To achieve this objective, the configuration of the present invention includes a compressor;
It includes a condenser, an expansion mechanism, a gas-liquid separator disposed in the middle of the expansion mechanism, and an evaporator, and the gas refrigerant separated by the gas-liquid separator is separated during the compression stroke of the compressor. In a heat pump type heating device configured to perform injection, intermediate pressure gas is generated in the gas-liquid separator by providing a heat exchange section that exchanges heat between the discharge gas of the compressor and the liquid refrigerant on the upstream side of the gas-liquid separator. The amount is increased.
以下、本発明の実施例を図面に基づいて詳細に説明する
。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は、本発明をヒートポンプ式冷暖房装置に適用し
た場合の冷暖房回路を示し、（１）は圧縮機、（２）は
四路切換弁、（３）は凝縮器としての室内熱交換器、（
４）および（５）／／′Ｊ：、膨張機構としての第１お
よび第２キヤピラリチユーブ、（６）は両キャピラリチ
ューブ（４）、（５）間に配設された気液分離器、（７
）は蒸発器としての室外熱交換器であり、それぞれ冷媒
通路としての連絡用配管（８）〜（１５）により接続さ
れている。また、（１６）は上記気液分離器（６）のガ
ス部と圧縮機（１）の圧縮行程途中部とを接続するガス
インジェクション管、（１７）は該ガスインジェクショ
ン管（１６）の途中に介設され、暖房運転時に開作動す
る電磁弁、（１８）は冷房運転時に気液分離器（６）お
よび第１キヤピラリチユーブとをバイパスさせるための
逆止弁付きバイパス管である。而して、暖房運転時、四
路切換弁（２）を実線の如く切換えて冷媒を矢印の如く
流通せしめるとともに、気液分離器（６）で分離された
中間圧ガス冷媒をガスインジェクション管（１６）を介
して圧縮機（１）の圧縮行程中にインジェクションして
冷媒循環量を増加させたインジェクション方式による暖
房運転を行う一方、冷房運転時、四路切換弁（２）を破
線の如く切換えて冷媒を暖房運転時とは逆方向に流通せ
しめて冷房運転を行うように構成されている。FIG. 1 shows a heating and cooling circuit when the present invention is applied to a heat pump air-conditioning system, in which (1) is a compressor, (2) is a four-way switching valve, and (3) is an indoor heat exchanger as a condenser. ,(
4) and (5)//'J: first and second capillary tubes as expansion mechanisms; (6) is a gas-liquid separator disposed between both capillary tubes (4) and (5); (7
) is an outdoor heat exchanger serving as an evaporator, and is connected to each other by communication pipes (8) to (15) serving as refrigerant passages. Further, (16) is a gas injection pipe that connects the gas section of the gas-liquid separator (6) and the middle part of the compression stroke of the compressor (1), and (17) is a gas injection pipe that connects the gas part of the gas-liquid separator (6) to the middle part of the compression stroke of the compressor (1). The interposed electromagnetic valve (18) which is opened during heating operation is a bypass pipe with a check valve for bypassing the gas-liquid separator (6) and the first capillary tube during cooling operation. During heating operation, the four-way switching valve (2) is switched as shown by the solid line to allow the refrigerant to flow as shown by the arrow, and the intermediate pressure gas refrigerant separated by the gas-liquid separator (6) is passed through the gas injection pipe ( 16) during the compression stroke of the compressor (1) to increase the circulating amount of refrigerant for heating operation, while during cooling operation, the four-way selector valve (2) is switched as shown by the broken line. The cooling operation is performed by causing the refrigerant to flow in the opposite direction to that during the heating operation.
そして、上記圧縮機（１）と四路切換弁（２）との間の
連絡用配管（８）の途中は第１キヤピラリデユープ（４
）と気液分離器（６）との間の連絡用配管（ｌｌ）に対
し、二重管構造まだは配管同志の接触等により近接せし
めて配置されて熱交換部としての熱交換器（１９）を構
成している。In the middle of the communication pipe (8) between the compressor (1) and the four-way switching valve (2) is a first capillary duplex (4).
) and the gas-liquid separator (6), the heat exchanger (19 ).
ま°た、熱交換器（１９）は直接気液分離器（６）内に
設けてもよい。Alternatively, the heat exchanger (19) may be provided directly within the gas-liquid separator (6).
まだ、上記熱交換器（１９）に代わる熱交換部の構造と
しては、第２図に示すように、圧縮機（１）本体表面に
気液分離器（６）を直接固着したもの、あるいは第３図
に示すように該圧縮機（１）本体を被覆する圧縮機防音
材（２０）の内部に該圧縮機（１）本体に近接させて気
液分離器（６）を配置した構造としてもよい。As for the structure of the heat exchanger in place of the heat exchanger (19), as shown in Fig. 2, a gas-liquid separator (6) is directly fixed to the surface of the compressor (1) main body, or a As shown in Fig. 3, a gas-liquid separator (6) may be arranged close to the compressor (1) body inside the compressor sound insulating material (20) that covers the compressor (1) body. good.
次に、上記実施例の作用を第４図のモリエル線図により
説明すると、暖房運転時、（ａ）点で室外熱交換器（７
）からの低温冷媒が圧縮機（１）に吸入された後、該圧
縮機（１）で圧縮され、（ｂ）点で気液分離器（６）か
らの中間圧ガス冷媒が（Ｃ′）点を通って圧縮機（１）
に導入、混合されて（ｃ）点に至り、さらに圧縮が続け
られて（ｄ）点に至る。ついで、熱交換器（１９）の放
熱によｐ（ｅ）点までエンタルピが下った後、室内熱交
換器（３）で冷却液化されて（ｆ）点に至シ、第１キヤ
ピラリチユーブ（４）により（ｇ）点まで膨張して、気
液分離器（６）に送られ、中間圧ガス冷媒と液冷媒に分
離される。そして、中間圧ガス冷媒は圧縮行程中の圧縮
機に吸入されて（Ｃ）点に至る一方で、液冷媒は第２キ
ャピラリチュ−−ブ（５）によシ（ｈ）点から（ｉ）点
に至った後、室外熱交換器（７）で蒸発されて（ｊ）点
に至り、四路切換弁（２）内で高温冷媒からの熱を受け
て（ａ）点に戻るという暖房運転サイクルを繰り返す。Next, the operation of the above embodiment will be explained using the Mollier diagram shown in FIG. 4. During heating operation, the outdoor heat exchanger (7
) is sucked into the compressor (1) and then compressed by the compressor (1), and at point (b) the intermediate pressure gas refrigerant from the gas-liquid separator (6) is transferred to (C'). Compressor (1) through the point
are introduced and mixed to reach point (c), and further compression is continued to reach point (d). Then, after the enthalpy decreases to point p(e) due to heat radiation from the heat exchanger (19), it is cooled and liquefied in the indoor heat exchanger (3) to reach point (f), and then the first capillary tube ( 4), the refrigerant is expanded to point (g) and sent to the gas-liquid separator (6), where it is separated into intermediate-pressure gas refrigerant and liquid refrigerant. The intermediate pressure gas refrigerant is sucked into the compressor during the compression stroke and reaches point (C), while the liquid refrigerant is passed through the second capillary tube (5) from point (h) to point (i). After reaching point (j), it is evaporated in the outdoor heat exchanger (7), and returns to point (a) after receiving heat from the high temperature refrigerant in the four-way switching valve (2). Repeat the cycle.
ここにおいて、圧縮機から吐出された（ｃり点での高温
冷媒のエンタルピは、圧縮機（１）本体および圧縮機（
１）と室内熱交換器（３）との間の冷媒通路からの放出
熱等により＜ｅ）点せで下降するが、この放出熱の一部
は熱交換部としての熱交換器（１９）等で気液分離器（
６）に給熱されて気液分離が促進され、その結果、中間
圧ガス冷媒の発生量が増加し、冷媒循環量の増大により
暖房能力を向上させることができる。尚、増加したカス
冷媒をインジェクションするためには、中間ガス圧を従
来より高めることが望ましい。また、その分、四路切換
弁（２）内での高温冷媒と低温冷媒との熱交換量を少な
くして圧縮機（１）への吸入ガスの過熱度を低く抑える
ことができるので、冷媒循環量をより一層増加させるこ
とになり、暖房能力の一層の向上を図ることができる０
尚、上記実施例では、第１キヤピラリチユーブ（４）と
気液分離器（６）との間に熱交換部を設けだが、室内側
熱交換器と気液分離器との間であれば、任意の部位に設
けてもよい。また、本発明はヒートポンプ式冷暖房装置
に限らず、単にヒートポンプ式暖房装置に対して広く適
用できるものであるのは言うまでもない。Here, the enthalpy of the high-temperature refrigerant discharged from the compressor (at point c) is expressed by the compressor (1) main body and the compressor (
1) and the indoor heat exchanger (3), which descends due to heat emitted from the refrigerant passage between the indoor heat exchanger (3) and the heat exchanger (19). Gas-liquid separator (
6) heat is supplied to promote gas-liquid separation, and as a result, the amount of intermediate-pressure gas refrigerant generated increases, and the heating capacity can be improved by increasing the amount of refrigerant circulation. Note that in order to inject the increased amount of dregs refrigerant, it is desirable to increase the intermediate gas pressure higher than before. In addition, the amount of heat exchange between the high-temperature refrigerant and the low-temperature refrigerant within the four-way switching valve (2) can be reduced, and the degree of superheating of the suction gas to the compressor (1) can be kept low. By further increasing the amount of circulation, it is possible to further improve the heating capacity.
In the above embodiment, the heat exchange section is provided between the first capillary tube (4) and the gas-liquid separator (6), but if it is between the indoor heat exchanger and the gas-liquid separator, , may be provided at any location. Furthermore, it goes without saying that the present invention is not limited to heat pump type air-conditioning devices, but can be widely applied simply to heat pump type heating devices.
以上説明したように、本発明によれば、中間圧ガスイン
ジェクションタイプのヒートポンプ式暖房装置において
、圧縮機の吐出ガスと気液分離器上流側の液冷媒とを熱
交換するようにしたので、従来ヒートロスとして外部に
放出されていた熱量を有効利用して中間圧ガス冷媒量を
増加させ、冷媒循環流量を増加させることができるので
、暖房能力の向上を有効に図ることができるものである
。As explained above, according to the present invention, in an intermediate pressure gas injection type heat pump type heating system, heat exchange is performed between the discharge gas of the compressor and the liquid refrigerant on the upstream side of the gas-liquid separator. Since the amount of heat that was released to the outside as heat loss can be effectively utilized to increase the amount of intermediate pressure gas refrigerant and the refrigerant circulation flow rate, it is possible to effectively improve the heating capacity.
図面は本発明の実施例を例示し、第１図は中間圧ガスイ
ンジェクションタイプのヒートポンプ式冷暖房装置の配
管系統図、第２図は圧縮機本体の斜視図、第３図は第２
図の変形例を示す斜視図、第４図はモリエル線図である
。
（１）・・圧縮機、（３）・・室内熱交換器、（４）、
・第１キヤピラリンユーブ、（５）・・第２キヤピラリ
チユーズ、（６）・・気液分離器、（７）・・室外熱交
換器、（１９）・・熱交換器。The drawings illustrate embodiments of the present invention; FIG. 1 is a piping system diagram of an intermediate-pressure gas injection type heat pump air-conditioning system, FIG. 2 is a perspective view of the compressor main body, and FIG.
A perspective view showing a modification of the figure, and FIG. 4 is a Mollier diagram. (1)...Compressor, (3)...Indoor heat exchanger, (4),
- First capillary tube, (5)... Second capillary tube, (6)... Gas-liquid separator, (7)... Outdoor heat exchanger, (19)... Heat exchanger.
Claims (1)
構（４）、（５）および該膨張機構（４）、（５）の中
間部に配設された気液分離器（６）と、蒸発器（７）と
を備え、前記気液分離器（６）で分離されたガス冷媒を
圧縮機（１）の圧縮行程中にインジェクションするよう
にしたヒートポンプ式暖房装置において、前記圧縮機（
１）の吐出ガスと前記気液分離器（６）上流側の液冷媒
とを熱交換する熱交換部（１９）を設けたことを特徴と
するヒートポンプ式暖房装置。il+ A compressor (l,), a condenser (3), an expansion mechanism (4), (5), and a gas-liquid separator (6) disposed in the middle of the expansion mechanisms (4), (5). ) and an evaporator (7), in which the gas refrigerant separated by the gas-liquid separator (6) is injected into the compression stroke of the compressor (1). Machine (
A heat pump type heating device characterized in that a heat exchange part (19) is provided for exchanging heat between the discharged gas of 1) and the liquid refrigerant on the upstream side of the gas-liquid separator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11046082A JPS591958A (en) | 1982-06-26 | 1982-06-26 | Heat pump type heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11046082A JPS591958A (en) | 1982-06-26 | 1982-06-26 | Heat pump type heating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS591958A true JPS591958A (en) | 1984-01-07 |
| JPS6353457B2 JPS6353457B2 (en) | 1988-10-24 |
Family
ID=14536269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11046082A Granted JPS591958A (en) | 1982-06-26 | 1982-06-26 | Heat pump type heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007147227A (en) * | 2005-11-30 | 2007-06-14 | Daikin Ind Ltd | Refrigerating device |
-
1982
- 1982-06-26 JP JP11046082A patent/JPS591958A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007147227A (en) * | 2005-11-30 | 2007-06-14 | Daikin Ind Ltd | Refrigerating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6353457B2 (en) | 1988-10-24 |
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