JPH0360021B2 - - Google Patents
Info
- Publication number
- JPH0360021B2 JPH0360021B2 JP59274308A JP27430884A JPH0360021B2 JP H0360021 B2 JPH0360021 B2 JP H0360021B2 JP 59274308 A JP59274308 A JP 59274308A JP 27430884 A JP27430884 A JP 27430884A JP H0360021 B2 JPH0360021 B2 JP H0360021B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- evaporator
- compressor
- stabilizer
- heat pump
- 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.)
- Expired - Lifetime
Links
- 239000003507 refrigerant Substances 0.000 claims description 58
- 239000003381 stabilizer Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- CZHYKKAKFWLGJO-UHFFFAOYSA-N dimethyl phosphite Chemical compound COP([O-])OC CZHYKKAKFWLGJO-UHFFFAOYSA-N 0.000 description 1
- NFORZJQPTUSMRL-UHFFFAOYSA-N dipropan-2-yl hydrogen phosphite Chemical compound CC(C)OP(O)OC(C)C NFORZJQPTUSMRL-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Central Heating Systems (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はヒートポンプに関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a heat pump.
近年、省エネルギの観点からヒートポンプが多
く賞用されるようになり、特に負荷流体温度が
100℃を超える高温用のものが注目されている。
In recent years, heat pumps have been widely used from the perspective of energy saving, especially when the load fluid temperature is
Products for high temperatures exceeding 100℃ are attracting attention.
しかしながら、このような高い温度範囲におい
ては、従来のＲ−11、Ｒ−113などのフロン系冷
媒を用いた場合は分解が生じるので、これを防ぐ
ため、例えば、特開昭55−48277号公報にあるよ
うに、ジメチルフオスフアイト、ジイソプロピル
フオスフアイトなどの安定剤を冷媒に添加する必
要がある。しかしながら、フロン系冷媒に添加す
る安定剤は一般に高沸点のものが多いので、ヒー
トポンプの運転中に、蒸発器に送り込まれる冷媒
中に溶けていた安定剤が、蒸発器において蒸発せ
ずに蒸発器内に蓄積され、安定剤が冷媒と共に循
環しなくなり、冷媒の安定性が悪化して冷媒の分
解が生ずる、という問題点がある。
However, in such a high temperature range, when conventional fluorocarbon refrigerants such as R-11 and R-113 are used, decomposition occurs. It is necessary to add stabilizers such as dimethyl phosphite and diisopropyl phosphite to the refrigerant, as shown in . However, since stabilizers added to fluorocarbon refrigerants generally have high boiling points, during operation of the heat pump, the stabilizers dissolved in the refrigerant sent to the evaporator do not evaporate in the evaporator. The problem is that the stabilizer is not circulated with the refrigerant and the stability of the refrigerant deteriorates, resulting in decomposition of the refrigerant.
本発明は、従来のものの上記の問題点を解決
し、安定剤が蒸発器に蓄積されずに冷媒と共に循
環し、冷媒の安定性を保ち、冷媒の分解を引き起
こすことのないヒートポンプを提供することを目
的とする。 The present invention solves the above-mentioned problems of the conventional ones, and provides a heat pump in which the stabilizer circulates together with the refrigerant without being accumulated in the evaporator, maintains the stability of the refrigerant, and does not cause decomposition of the refrigerant. With the goal.
本発明は、圧縮機、凝縮器、蒸発器、減圧機構
及びこれらの機器を接続する冷媒経路を有し、冷
媒中に熱による分解を防ぐ安定剤が加えられてい
るヒートポンプにおいて、前記蒸発器内の安定剤
を含む冷媒液を、前記蒸発器の下部から取り出
し、前記圧縮機の出口までの間の冷媒流路の一部
に導くバイパス通路を設けたことを特徴とするヒ
ートポンプである。
The present invention provides a heat pump having a compressor, a condenser, an evaporator, a pressure reduction mechanism, and a refrigerant path connecting these devices, and in which a stabilizer is added to the refrigerant to prevent decomposition due to heat. The heat pump is characterized in that a bypass passage is provided for taking out the refrigerant liquid containing the stabilizer from the lower part of the evaporator and guiding it to a part of the refrigerant flow path up to the outlet of the compressor.
本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described using the drawings.
第１図において、１は圧縮機、３は凝縮器、７
は蒸発器、６は減圧機構であり、これらの機器の
間を冷媒経路として冷媒通路２，５，９が接続し
ている。 In Fig. 1, 1 is a compressor, 3 is a condenser, and 7 is a compressor.
is an evaporator, 6 is a pressure reducing mechanism, and refrigerant passages 2, 5, and 9 are connected between these devices as refrigerant paths.
４は負荷流体配管、８は熱源水配管である。 4 is a load fluid pipe, and 8 is a heat source water pipe.
１０は、蒸発器７の下部の、冷媒液が溜る部分
に接続されたバイパス管であり、途中にポンプ１
１を備え、末端は分岐管１２，１３，１４に分岐
し、それぞれ、圧縮機１の入口付近、内部及び出
口付近に開口する。 10 is a bypass pipe connected to the lower part of the evaporator 7 where the refrigerant liquid accumulates, and the pump 1 is connected to the part in the middle.
1, and its ends branch into branch pipes 12, 13, and 14, which open near the inlet, inside, and near the outlet of the compressor 1, respectively.
このようなヒートポンプを運転した場合に、蒸
発器７において冷媒液の一部はポンプ１１によ
り、バイパス管１０を経て分岐管１２，１３，１
４により圧縮機１の入口側（低圧部）、中間部
（中間圧部）、出口側（高圧部）にそれぞれ導かれ
る。 When such a heat pump is operated, a part of the refrigerant liquid in the evaporator 7 is pumped through the bypass pipe 10 to the branch pipes 12, 13, 1 by the pump 11.
4 to the inlet side (low pressure section), intermediate section (intermediate pressure section), and outlet side (high pressure section) of the compressor 1, respectively.
このようにして、蒸発器７の中の冷媒液の一部
が圧縮機１により移送される気体の中に混入せし
められ、この気体と共に移送される。蒸発器７の
中で安定剤は蒸発せずに冷媒より重いので蒸発器
下部に滞留し、蒸発器７中の安定剤の濃度は次第
に大となり、特に蒸発器７の底部付近で大とな
る。この滞留した安定剤が冷媒液と共に蒸発器７
の下部から効率よく取り出されバイパス管１０に
吸い込まれて圧縮機１の移送気体に混じこれと共
に冷媒循環サイクルに再び投じられるので、冷媒
の安定化をはかることができ、圧縮機１の出口の
高温下においても冷媒の安定化をはかることがで
き、冷媒の分解を防ぎ安定した運転を行うことが
できる。 In this way, a portion of the refrigerant liquid in the evaporator 7 is mixed into the gas transferred by the compressor 1 and is transferred together with this gas. The stabilizer does not evaporate in the evaporator 7, but because it is heavier than the refrigerant, it stays at the bottom of the evaporator, and the concentration of the stabilizer in the evaporator 7 gradually increases, especially near the bottom of the evaporator 7. This retained stabilizer is added to the evaporator 7 along with the refrigerant liquid.
The refrigerant is efficiently extracted from the lower part of the refrigerant, sucked into the bypass pipe 10, mixed with the transfer gas of the compressor 1, and thrown into the refrigerant circulation cycle again. The refrigerant can be stabilized even when the refrigerant is at the bottom, preventing decomposition of the refrigerant and ensuring stable operation.
また、液冷媒を圧縮機１の吐出側にも噴霧する
ので、冷媒の過熱防止にも役立ち、冷媒の安定性
を確保する。 Furthermore, since the liquid refrigerant is also sprayed on the discharge side of the compressor 1, it is useful for preventing overheating of the refrigerant, and the stability of the refrigerant is ensured.
圧縮機１としては遠心式、往復動式、スクリユ
ー式、ルーツ式など、種々の型式の圧縮機が用い
られる。 As the compressor 1, various types of compressors are used, such as a centrifugal type, a reciprocating type, a screw type, and a Roots type.
また、バイパス管１０による冷媒液の供給先
は、蒸発器７の出口から圧縮機１の吐出側までの
間の冷媒流路であつて、圧縮機１により冷媒蒸気
と共に移送され得る場所ならどこでもよい。この
供給先は単数でも複数でもよく、複数の場合、そ
れぞれ蒸発器７から別個に取り出すようにしても
よい。 Further, the refrigerant liquid may be supplied by the bypass pipe 10 to any place in the refrigerant flow path between the outlet of the evaporator 7 and the discharge side of the compressor 1 where it can be transferred together with the refrigerant vapor by the compressor 1. . This supply destination may be single or plural, and in the case of plurality, it may be taken out from the evaporator 7 separately.
第２図はバイパス冷媒液がノズル１５より、圧
縮機１の中間部として羽根車１６の途中の部分
に、及び出口側としてデイフユーザ１７部に噴霧
される例を示す。１８はケーシングシユラウドで
ある。出口側の供給先としては、このほかスクロ
ール部、或いは圧縮機１の吐出口までの導管など
としてもよい。 FIG. 2 shows an example in which the bypass refrigerant liquid is sprayed from the nozzle 15 onto an intermediate portion of the impeller 16 as the intermediate portion of the compressor 1 and onto a differential user 17 portion as the outlet side. 18 is a casing shroud. In addition, the supply destination on the outlet side may be a scroll portion, a conduit to the discharge port of the compressor 1, or the like.
第３図は、バイパス冷媒液をノズル１５から圧
縮機１の入口側に噴霧する例を示す。このほか、
入口側の油溜めに導いてもよい。 FIG. 3 shows an example in which the bypass refrigerant liquid is sprayed from the nozzle 15 to the inlet side of the compressor 1. other than this,
It may also be led to an oil sump on the inlet side.
以上の実施例においてバイパス冷媒液を送る加
圧源としてポンプ１１の代りに、ヒートポンプサ
イクル内の吐出圧、又は凝縮圧力の冷媒を利用し
たエゼクタを用いてもよい。そのほか、圧縮機１
の入口側に送る場合圧縮機１の吸込側の冷媒通路
を絞り、その絞り部分に冷媒通路（分岐管１２）
を接続する方法や、冷媒通路を毛細管として毛細
管現像を利用して送る方法や、蒸発器７を圧縮機
１より高い所に置いて重力を利用して送る方法、
などが用いられる。 In the above embodiments, instead of the pump 11 as the pressurized source for sending the bypass refrigerant liquid, an ejector that utilizes the refrigerant at the discharge pressure or condensation pressure within the heat pump cycle may be used. In addition, compressor 1
When sending refrigerant to the inlet side of the compressor 1, the refrigerant passage on the suction side of the compressor 1 is throttled, and the refrigerant passage (branch pipe 12)
A method of connecting the refrigerant to a capillary tube, a method of transporting the refrigerant using capillary development, a method of placing the evaporator 7 higher than the compressor 1 and transporting the refrigerant using gravity,
etc. are used.
以上の説明は単段圧縮機についてなされている
が、多段圧縮機を用いる場合でも同様の効果があ
る。 Although the above explanation has been made regarding a single-stage compressor, the same effect can be obtained even when a multi-stage compressor is used.
本発明は、蒸発器内の安定剤を含む冷媒液を、
前記蒸発器の下部から取り出し、前記圧縮機の出
口までの間の冷媒流路の一部に導くバイパス通路
を設けたことにより、蒸発器の中で安定剤は蒸発
せずに冷媒より重いので下部に滞留し、この滞留
した安定剤が冷媒液とともに蒸発器下部から効率
よく取り出され、圧縮機の移送気体に混入され、
冷媒の安定化をはかることが容易に可能であり、
圧縮機の出口高温下においても冷媒の分解を防
ぎ、著しく安定した運転を確保でき、しかも冷媒
中に溶けている安定剤が蒸発器に蓄積することな
く、均等に冷媒に溶けた状態でヒートポンプサイ
クルが形成されるので、安定剤が有効に作用し、
安定した運転を行うヒートポンプを提供すること
ができ、実用上極めて大なる効果を奏する。
The present invention provides that the refrigerant liquid containing the stabilizer in the evaporator is
By providing a bypass passage that takes the stabilizer out from the bottom of the evaporator and leads it to a part of the refrigerant flow path up to the outlet of the compressor, the stabilizer does not evaporate in the evaporator, but because it is heavier than the refrigerant, it is removed from the bottom of the evaporator. This stagnant stabilizer is efficiently taken out from the bottom of the evaporator together with the refrigerant liquid and mixed into the transfer gas of the compressor.
It is easily possible to stabilize the refrigerant,
It prevents the decomposition of the refrigerant even under high temperatures at the compressor outlet, ensuring extremely stable operation.Moreover, the stabilizer dissolved in the refrigerant does not accumulate in the evaporator and is evenly dissolved in the refrigerant, allowing the heat pump cycle to continue. is formed, so the stabilizer acts effectively,
It is possible to provide a heat pump that operates stably, which is extremely effective in practice.
第１図ないし第３図は本発明の実施例のフロー
図である。
１……圧縮機、２……冷媒通路、３……凝縮
器、４……負荷流体配管、５……冷媒通路、６…
…減圧機構、７……蒸発器、８……熱源水配管、
９……冷媒通路、１０……バイパス管、１１……
ポンプ、１２，１３，１４……分岐管、１５……
ノズル、１６……羽根車、１７……デイフユー
ザ、１８……ケーシングシユラウド。
1-3 are flow diagrams of embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Compressor, 2... Refrigerant passage, 3... Condenser, 4... Load fluid piping, 5... Refrigerant passage, 6...
... pressure reduction mechanism, 7 ... evaporator, 8 ... heat source water piping,
9... Refrigerant passage, 10... Bypass pipe, 11...
Pump, 12, 13, 14...branch pipe, 15...
Nozzle, 16... impeller, 17... differential user, 18... casing shroud.
Claims (1)
らの機器を接続する冷媒経路を有し、冷媒中に熱
による分解を防ぐ安定剤が加えられているヒート
ポンプにおいて、前記蒸発器内の安定剤を含む冷
媒液を、前記蒸発器の下部から取り出し、前記圧
縮機の出口までの間の冷媒流路の一部に導くバイ
パス通路を設けたことを特徴とするヒートポン
プ。1. In a heat pump that has a compressor, a condenser, an evaporator, a pressure reduction mechanism, and a refrigerant path connecting these devices, and in which a stabilizer is added to the refrigerant to prevent decomposition due to heat, the stabilizer in the evaporator A heat pump characterized in that a bypass passage is provided for taking out a refrigerant liquid containing the evaporator from the lower part of the evaporator and guiding it to a part of the refrigerant flow path up to the outlet of the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27430884A JPS61159053A (en) | 1984-12-28 | 1984-12-28 | Heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27430884A JPS61159053A (en) | 1984-12-28 | 1984-12-28 | Heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61159053A JPS61159053A (en) | 1986-07-18 |
| JPH0360021B2 true JPH0360021B2 (en) | 1991-09-12 |
Family
ID=17539832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27430884A Granted JPS61159053A (en) | 1984-12-28 | 1984-12-28 | Heat pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61159053A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641820B2 (en) * | 1986-10-01 | 1994-06-01 | スーパーヒートポンプ・エネルギー集積システム技術研究組合 | heat pump |
| US4843837A (en) * | 1986-02-25 | 1989-07-04 | Technology Research Association Of Super Heat Pump Energy Accumulation System | Heat pump system |
| JPH061135B2 (en) * | 1987-05-19 | 1994-01-05 | 工業技術院長 | Heat pump |
| JP5486174B2 (en) * | 2008-08-28 | 2014-05-07 | 株式会社前川製作所 | Heat pump device and reciprocating compressor for refrigerant |
| JP5864886B2 (en) * | 2011-04-20 | 2016-02-17 | 東京電力株式会社 | Condenser |
| JP7038300B2 (en) * | 2017-07-27 | 2022-03-18 | パナソニックＩｐマネジメント株式会社 | Refrigeration cycle device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538942A (en) * | 1976-07-13 | 1978-01-26 | Shigeo Miyazaki | Bicycle |
| JPS5548277A (en) * | 1978-09-07 | 1980-04-05 | Du Pont Mitsui Fluorochem Co Ltd | Flon composition for heat transfer medium |
-
1984
- 1984-12-28 JP JP27430884A patent/JPS61159053A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538942A (en) * | 1976-07-13 | 1978-01-26 | Shigeo Miyazaki | Bicycle |
| JPS5548277A (en) * | 1978-09-07 | 1980-04-05 | Du Pont Mitsui Fluorochem Co Ltd | Flon composition for heat transfer medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61159053A (en) | 1986-07-18 |
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