JPS62284154A - Heat pump system - Google Patents
Heat pump systemInfo
- Publication number
- JPS62284154A JPS62284154A JP12468286A JP12468286A JPS62284154A JP S62284154 A JPS62284154 A JP S62284154A JP 12468286 A JP12468286 A JP 12468286A JP 12468286 A JP12468286 A JP 12468286A JP S62284154 A JPS62284154 A JP S62284154A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- turbine
- condenser
- heat pump
- pump system
- 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
- 239000007788 liquid Substances 0.000 claims description 14
- 229920006395 saturated elastomer Polymers 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 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
- 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
- Central Heating Systems (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (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】
３、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システム、特に出力温度の高いヒ
ートポンプシステムの性能、特に成績係数の上昇を図る
技術に関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a heat pump system, particularly a technique for improving the performance, particularly the coefficient of performance, of a heat pump system with a high output temperature.
本発明者は凝縮器から導出される凝縮液の保有するエネ
ルギーを有効利用するため、凝縮液を減圧膨脹（フラッ
シュ）させ、発生する蒸気でタービンを駆動し、ヒート
ポンプの圧縮機の駆動動力の一部として回収する技術を
提案した。In order to effectively utilize the energy possessed by the condensate drawn out from the condenser, the inventor decompresses and expands the condensate (flash) and uses the generated steam to drive a turbine, thereby contributing to the driving power of the heat pump compressor. The department proposed a technology to collect the waste.
本発明は、この技術を更に発展させたものである。飽和
蒸気により膨脹タービンを駆動する場合、第３図に示す
ように、蒸気が膨脹し減圧するにつれて、蒸気の乾き度
Ｘが低下する。すなわち、蒸気が湿ってくるわけで、蒸
気の中に水滴を含むようになる。こういう状態でタービ
ンを駆動すると、蒸気の流体力学的な損失のため、十分
な性能が得られないばかりか、タービン翼の侵食等を起
こしたりする場合がある。The present invention further develops this technology. When an expansion turbine is driven by saturated steam, the dryness X of the steam decreases as the steam expands and its pressure decreases, as shown in FIG. In other words, the steam becomes moist and contains water droplets. If the turbine is driven under these conditions, not only will sufficient performance not be obtained due to hydrodynamic loss of steam, but the turbine blades may suffer erosion.
従って、通常、タービン出口の蒸気の乾き度を８５〜９
０％を限度として、これ以下にならないように膨脹後圧
力を選定する。Therefore, the dryness of the steam at the turbine outlet is usually set to 85 to 9.
The pressure after expansion is selected so as not to fall below 0%.
しかし、出力温度の高いヒートポンプシステムにおいて
、フラッシュ蒸気タービンシステムを適用する場合、フ
ラッシュ圧力が高くなると、タービン出口における蒸気
の乾き度を制限すると、十分な膨脹ができないことにな
る。However, when a flash steam turbine system is applied to a heat pump system with a high output temperature, if the flash pressure becomes high and the dryness of the steam at the turbine outlet is limited, sufficient expansion will not be possible.
１本発明は、熱水をフラッシュして生成した飽和蒸気を
加熱して過熱蒸気とし、これをタービンに導入すること
によりタービン出口の乾き度の下限を維持したままター
ビン膨脹比を太き（とる。すなわち、タービンの動力を
大きくすることを目的とする。1 The present invention heats saturated steam generated by flashing hot water to produce superheated steam, and introduces this into the turbine to increase the turbine expansion ratio while maintaining the lower limit of dryness at the turbine outlet. In other words, the purpose is to increase the power of the turbine.
すなわち、本発明は、蒸発器、圧縮機、凝縮器、絞り機
構、気液分離機構及び膨脹タービン、復水器からなるヒ
ートポンプシステムにおいて、気液分離機構から導出さ
れる飽和蒸気を、凝縮器において凝縮・生成した飽和水
と熱交換させ、過熱蒸気とした後に膨脹タービンに導く
ことを特徴とする。That is, the present invention provides a heat pump system comprising an evaporator, a compressor, a condenser, a throttle mechanism, a gas-liquid separation mechanism, an expansion turbine, and a condenser, in which saturated steam derived from the gas-liquid separation mechanism is sent to the condenser. It is characterized by exchanging heat with condensed and generated saturated water to turn it into superheated steam, which is then introduced to an expansion turbine.
以下、図面により本発明の実施例について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明にがかるヒートポンプシステムの系統図
であり、配管１２から蒸発器１１に供給された熱媒体は
低温熱源１３から熱を吸収して蒸気Ｓ１となり、配管１
４を経由して第１段圧縮機１５に導入される。ここで、
圧縮されて高温高圧蒸気Ｓ２となり、配管１６を経由し
て第２段圧縮機１７に導入される。ここで、圧縮されて
高温高圧蒸気Ｓ、となり、さらに配管１８を経由して凝
縮器１９に供給され、高温の熱エネルギーを高温熱源２
０に供給すると共に、蒸気Ｓ３は凝縮する。FIG. 1 is a system diagram of the heat pump system according to the present invention, in which the heat medium supplied from the piping 12 to the evaporator 11 absorbs heat from the low-temperature heat source 13 and becomes steam S1, and the piping 1
4 to the first stage compressor 15. here,
It is compressed into high-temperature, high-pressure steam S2, which is introduced into the second stage compressor 17 via the pipe 16. Here, it is compressed into high-temperature, high-pressure steam S, which is further supplied to a condenser 19 via a pipe 18, and transfers high-temperature thermal energy to a high-temperature heat source 2.
0, the steam S3 condenses.
凝縮器１９において凝縮された熱媒液りは配管２１を経
由して絞り機構としての膨脹弁２２にて膨脹し気液分離
器としてのフラッシュタンク２３において液体ＬＬと蒸
気Ｓ４とに分離される。The heat medium liquid condensed in the condenser 19 passes through a pipe 21, expands in an expansion valve 22 as a throttling mechanism, and is separated into liquid LL and vapor S4 in a flash tank 23 as a gas-liquid separator.
蒸気Ｓ４は配管２４を経由して熱交換器２５に導入され
、前記凝縮器１９において凝縮された熱媒液しによって
加熱されて過熱蒸気Ｓ、となる。この過熱蒸気Ｓｓは導
管２７を経由して第１段圧縮機１５を駆動するための蒸
気タービン２８に導入される。蒸気タービン２８から４
出された蒸気Ｓ６は配管２９を経由して復水器３０に送
られ、ここで凝縮して低温液体Ｌ２となり、配管３１を
経由してポンプ３２により昇圧され、配管３３を経て、
配管３４と合流し、フラッシュタンク２３において、気
液分離された液体し、と混合した後、管１２を経由して
蒸発器１１に循環供給される。上記熱交換器２５は前記
配管２１の途中に接続されていることは言うまでもない
。The steam S4 is introduced into the heat exchanger 25 via the pipe 24, and is heated by the heat medium liquid condensed in the condenser 19 to become superheated steam S. This superheated steam Ss is introduced via a conduit 27 into a steam turbine 28 for driving the first stage compressor 15. steam turbine 28 to 4
The released steam S6 is sent to the condenser 30 via the pipe 29, where it is condensed to become a low-temperature liquid L2, and the pressure is increased by the pump 32 via the pipe 31.
It merges with the pipe 34 , mixes with the gas-liquid separated liquid in the flash tank 23 , and then is circulated and supplied to the evaporator 11 via the pipe 12 . It goes without saying that the heat exchanger 25 is connected midway through the piping 21.
第２図は本発明にがかるヒートポンプシステムのモリエ
ール線図である。図中の符号の示す箇所は第１図におい
て同一符号の示す位置における条件を示している。FIG. 2 is a Moliere diagram of the heat pump system according to the present invention. The locations indicated by the symbols in the figure indicate the conditions at the positions indicated by the same symbols in FIG.
本図において、熱交換器２５において、凝縮熱水は、４
−５に移動する際、熱を放出してフラッシュした蒸気を
加熱し、蒸気は飽和状態６″から過熱状態６゛°゛ に
移動する。この過熱状態からタービンに導入することに
よりタービン出口乾き度の過度な低下を起さずに膨脹比
を大きくとれる。In this figure, in the heat exchanger 25, the condensed hot water is
-5, heat is released to heat the flashed steam, and the steam moves from a saturated state of 6" to a superheated state of 6".By introducing the steam from this superheated state into the turbine, the turbine outlet dryness The expansion ratio can be increased without causing an excessive decrease in
上記のように、本発明は、蒸発器、圧縮機、凝縮器、絞
り機構、気液分離機構及び膨脹タービン、復水器からな
るヒートポンプシステムにおいて、気液分離機構から導
出される飽和蒸気を、凝縮器において凝縮・生成した飽
和水と熱交換させ、過熱蒸気とした後に膨脹タービンに
導くようになしたので、タービン出口における蒸気の乾
き度を下限値以上に保ったまま、タービン膨脹比を大き
くとれ、従って、タービンの回収動力が大きくなるため
、圧縮機を駆動する電動機の出力は小さくて済む。As described above, the present invention provides a heat pump system consisting of an evaporator, a compressor, a condenser, a throttle mechanism, a gas-liquid separation mechanism, an expansion turbine, and a condenser, in which saturated steam derived from the gas-liquid separation mechanism is By exchanging heat with the saturated water condensed and generated in the condenser and turning it into superheated steam, it is led to the expansion turbine, so the turbine expansion ratio can be increased while keeping the dryness of the steam at the turbine outlet above the lower limit. Therefore, since the recovered power of the turbine becomes large, the output of the electric motor that drives the compressor can be small.
よって、ヒートポンプシステムの全体性能（成績係数）
を向上させることができる。Therefore, the overall performance (coefficient of performance) of the heat pump system
can be improved.
この理由を説明すると、第３図において、圧力Ｐ１の飽
和蒸気６Ｎからタービンにおいて断熱膨脹させ、また、
タービン出口乾き度ＸをＸ＝０．８５とすると、本図の
点７、圧力Ｐ２まで膨脹する。この場合、タービンの熱
落差はΔｉ で示される。若し、蒸気が同一圧力ＰＩＡ
で、過熱されている場合（点６ ）、同−乾き度まで膨
脹すると、点７°、圧力Ｐ、まで膨脹することになる。To explain the reason for this, in FIG. 3, saturated steam 6N at pressure P1 is adiabatically expanded in the turbine, and
When the turbine outlet dryness X is set to X=0.85, it expands to point 7 in this figure, pressure P2. In this case, the thermal drop of the turbine is denoted by Δi. If the steam is at the same pressure PIA
If it is superheated (point 6) and expands to the same degree of dryness, it will expand to point 7° and pressure P.
本図で明らかな通り、同一圧力Ｐ□の蒸気であっても、
出口乾き度の制限を設定すると、蒸気を過熱する必要が
ある。本発明は、熱水をフラッシュする前に自己の熱で
、フラッシュ蒸気を加熱することも特徴とするものであ
る。As is clear from this figure, even if the steam is at the same pressure P□,
Setting the outlet dryness limit requires the steam to be superheated. The present invention is also characterized by heating the flash steam with its own heat before flashing the hot water.
第１図は本発明にかかるヒートポンプシステムの系統図
、第２図は本発明にかかるヒートポンプシステムのモリ
エール線図、第３図は本発明にかかるタービン部の作動
を示すモリエール線図である。
１１・・・蒸発器、１５．１７・・・圧縮機、１９・・
・凝縮器、２２・・・絞り機構、２３・・・気液分離器
、２８・・・タービン、３０・・・復水器。FIG. 1 is a system diagram of a heat pump system according to the present invention, FIG. 2 is a Moliere diagram of the heat pump system according to the present invention, and FIG. 3 is a Moliere diagram showing the operation of a turbine section according to the present invention. 11...Evaporator, 15.17...Compressor, 19...
- Condenser, 22... Throttle mechanism, 23... Gas-liquid separator, 28... Turbine, 30... Condenser.
Claims (1)
膨脹タービン、復水器からなるヒートポンプシステムに
おいて、気液分離機構から導出される飽和蒸気を、凝縮
器において凝縮・生成した飽和水と熱交換させ、過熱蒸
気とした後に膨脹タービンに導くことを特徴とするヒー
トポンプシステム。In a heat pump system consisting of an evaporator, compressor, condenser, throttling mechanism, gas-liquid separation mechanism, expansion turbine, and condenser, saturated water is produced by condensing saturated steam derived from the gas-liquid separation mechanism in the condenser. A heat pump system that exchanges heat with the steam to generate superheated steam, which is then introduced to an expansion turbine.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12468286A JPS62284154A (en) | 1986-05-31 | 1986-05-31 | Heat pump system |
| EP86201755A EP0239680B1 (en) | 1986-03-25 | 1986-10-10 | Heat pump |
| EP89106280A EP0329199A1 (en) | 1986-03-25 | 1986-10-10 | A method of curtailing power for driving a compressor in a heat pump and a compressor operating according to such a method |
| DE8686201755T DE3676191D1 (en) | 1986-03-25 | 1986-10-10 | HEAT PUMP. |
| AT86201755T ATE59098T1 (en) | 1986-03-25 | 1986-10-10 | HEAT PUMP. |
| ES86201755T ES2018470B3 (en) | 1986-03-25 | 1986-10-10 | HEAT PUMP, ENERGY RECOVERY METHOD AND METHOD TO REDUCE THE COMPRESSOR DRIVE POWER IN THE CARLOR PUMP. |
| CA000520727A CA1298985C (en) | 1986-03-25 | 1986-10-17 | Heat pump, energy recovery method and method of curtailing power for driving compressor in the heat pump |
| US07/129,876 US4896515A (en) | 1986-03-25 | 1987-12-04 | Heat pump, energy recovery method and method of curtailing power for driving compressor in the heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12468286A JPS62284154A (en) | 1986-05-31 | 1986-05-31 | Heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62284154A true JPS62284154A (en) | 1987-12-10 |
Family
ID=14891463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12468286A Pending JPS62284154A (en) | 1986-03-25 | 1986-05-31 | Heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62284154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9719699B2 (en) | 2011-04-28 | 2017-08-01 | Panasonic Intellectual Property Management Co., Ltd. | Refrigeration device |
-
1986
- 1986-05-31 JP JP12468286A patent/JPS62284154A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9719699B2 (en) | 2011-04-28 | 2017-08-01 | Panasonic Intellectual Property Management Co., Ltd. | Refrigeration device |
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