JPH05332639A - Heat pump device - Google Patents
Heat pump deviceInfo
- Publication number
- JPH05332639A JPH05332639A JP4168251A JP16825192A JPH05332639A JP H05332639 A JPH05332639 A JP H05332639A JP 4168251 A JP4168251 A JP 4168251A JP 16825192 A JP16825192 A JP 16825192A JP H05332639 A JPH05332639 A JP H05332639A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- compressor
- heat
- temperature
- centrifugal compressor
- 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
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は温水を加熱するのに好適
なヒートポンプ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump device suitable for heating hot water.
【０００２】[0002]
【従来の技術】従来のヒートポンプ装置の１例が図２に
示されている。遠心式圧縮機１で圧縮された冷媒ガスは
吐出管２を経て凝縮器３に入り、ここで伝熱管４内を流
過する温水と熱交換してこれを加熱することにより凝縮
液化する。この冷媒液は絞り手段５で絞られることによ
り断熱膨張した後、蒸発器６に入り、ここで伝熱管７内
を流過する冷水を冷却することによって蒸発気化する。
そして、この冷媒ガスは圧縮機１に吸入されて再び圧縮
される。凝縮器３で加熱された温水及び蒸発器６で冷却
された冷水は図示しない需要先に送られる。2. Description of the Related Art One example of a conventional heat pump device is shown in FIG. The refrigerant gas compressed by the centrifugal compressor 1 passes through the discharge pipe 2 and enters the condenser 3 where it exchanges heat with the hot water flowing through the heat transfer pipe 4 to heat it to be condensed and liquefied. This refrigerant liquid is adiabatically expanded by being squeezed by the squeezing means 5, and then enters the evaporator 6, where evaporative vaporization is performed by cooling the cold water flowing through the heat transfer tube 7.
Then, this refrigerant gas is sucked into the compressor 1 and compressed again. The hot water heated by the condenser 3 and the cold water cooled by the evaporator 6 are sent to a customer (not shown).
【０００３】[0003]
【発明が解決しようとする課題】上記従来のヒートポン
プ装置において、凝縮器３から取り出される温水の温度
を高くするために、凝縮器３における冷媒の凝縮温度を
温水の出口温度以上に設定すると、遠心圧縮機１の最終
段における冷媒ガスの温度がその物性上問題となる臨界
温度に接近するため、遠心圧縮機１の性能が悪化すると
いう不具合があった。In the above conventional heat pump device, if the condensation temperature of the refrigerant in the condenser 3 is set to be higher than the outlet temperature of the hot water in order to raise the temperature of the hot water taken out from the condenser 3, the centrifugal force is increased. Since the temperature of the refrigerant gas in the final stage of the compressor 1 approaches the critical temperature, which is a problem in terms of its physical properties, the performance of the centrifugal compressor 1 deteriorates.
【０００４】[0004]
【課題を解決するための手段】本発明は上記課題を解決
するために発明されたものであって、その要旨とすると
ころは、冷媒ガスを圧縮するための遠心式圧縮機と、こ
の圧縮機で圧縮された冷媒ガスを温水と熱交換させるこ
とにより凝縮液化させると同時に上記温水を加熱する凝
縮器とを備えたヒートポンプ装置において、上記圧縮機
と上記凝縮器とを繋ぐ冷媒回路に上記圧縮機から吐出さ
れた高温の冷媒ガスの顕熱によって上記凝縮器で加熱さ
れた温水を加熱してこれを昇温させる顕熱回収器を介装
したことを特徴とするヒートポンプ装置にある。SUMMARY OF THE INVENTION The present invention has been invented to solve the above problems, and its gist is to provide a centrifugal compressor for compressing a refrigerant gas, and this compressor. In a heat pump device including a condenser that heats the hot water while condensing and liquefying the refrigerant gas that has been compressed with hot water, the compressor is provided in a refrigerant circuit that connects the compressor and the condenser. The heat pump device is characterized in that a sensible heat recovery device for heating the warm water heated by the condenser by the sensible heat of the high-temperature refrigerant gas discharged from the condenser is provided.
【０００５】上記凝縮器と上記顕熱回収器のヒートバラ
ンスを演算する演算器と、この演算器の演算結果に基い
て上記遠心式圧縮機を制御する制御装置を設けることが
できる。A computing unit for computing the heat balance between the condenser and the sensible heat recovery unit, and a control unit for controlling the centrifugal compressor based on the computation result of the computing unit can be provided.
【０００６】[0006]
【作用】第１の発明においては、遠心圧縮機から吐出さ
れた高温の冷媒ガスは顕熱回収器に入り、ここでその顕
熱を温水に与えた後、凝縮器に入り、ここでその潜熱を
温水に与えることによって凝縮液化する。一方、温水は
凝縮器で冷媒の潜熱を奪うことによって加熱された後、
顕熱回収器で冷媒ガスの顕熱を奪うことによって昇温す
る。In the first aspect of the invention, the high-temperature refrigerant gas discharged from the centrifugal compressor enters the sensible heat recovery device, where the sensible heat is applied to hot water, and then enters the condenser, where the latent heat Is condensed and liquefied by applying to hot water. On the other hand, hot water is heated by removing the latent heat of the refrigerant in the condenser,
The sensible heat recovery unit takes the sensible heat of the refrigerant gas to raise the temperature.
【０００７】第２の発明においては、凝縮器と顕熱回収
器とのヒートバランスを演算器で演算し、この演算結果
に基いて制御装置により遠心圧縮機を制御する。In the second aspect of the present invention, the heat balance between the condenser and the sensible heat recovery unit is calculated by the arithmetic unit, and the control unit controls the centrifugal compressor based on the calculation result.
【０００８】[0008]
【実施例】本発明の１実施例が図１に示されている。遠
心圧縮機１と凝縮器３とを繋ぐ冷媒回路２に顕熱回収器
８が介装されている。しかして、圧縮機１から吐出され
た高温の冷媒ガスは顕熱回収器８に入り、ここで伝熱管
９内を流過する温水に顕熱を与えた後、凝縮器３に入
り、ここで伝熱管４内を流過する温水に潜熱を与えるこ
とにより凝縮液化する。そして、絞り手段５、蒸発器６
を経て圧縮機１に戻る。一方、温水は凝縮器３の伝熱管
４内を流過する過程で冷媒の潜熱を奪うことにより加熱
され、次いで、顕熱回収器８の伝熱管９内を流過する過
程で冷媒ガスの顕熱を奪うことにより昇温する。DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIG. A sensible heat recovery device 8 is provided in a refrigerant circuit 2 that connects the centrifugal compressor 1 and the condenser 3. Then, the high-temperature refrigerant gas discharged from the compressor 1 enters the sensible heat recovery device 8, where sensible heat is given to the hot water flowing through the heat transfer tube 9, and then enters the condenser 3 where Latent heat is applied to the warm water flowing through the heat transfer tube 4 to condense and liquefy it. Then, the squeezing means 5 and the evaporator 6
After that, it returns to the compressor 1. On the other hand, the hot water is heated by depriving the latent heat of the refrigerant in the process of passing through the heat transfer tube 4 of the condenser 3, and then, the sensible heat of the refrigerant gas is passed through the process of passing through the heat transfer tube 9 of the sensible heat recovery device 8. The temperature rises by removing heat.
【０００９】かくして、冷媒の凝縮温度は温水にその需
要先から要求される温度以下に低下させることができる
ので、遠心圧縮機１の最終段における冷媒ガスの温度を
臨界温度より充分低い値とすることができる。この結
果、冷媒の物性及び遠心圧縮機１の性能が安定するのみ
ならず遠心圧縮機１の駆動動力が減少するので、ヒート
ポンプ装置の効率も向上する。Thus, the condensing temperature of the refrigerant can be lowered to the temperature required for the hot water or less by the customer, so that the temperature of the refrigerant gas in the final stage of the centrifugal compressor 1 is set to a value sufficiently lower than the critical temperature. be able to. As a result, not only the physical properties of the refrigerant and the performance of the centrifugal compressor 1 become stable, but also the driving power of the centrifugal compressor 1 decreases, so that the efficiency of the heat pump device also improves.
【００１０】次いで、このヒートポンプ装置の制御につ
いて説明する。演算器10には温度センサ12によって検出
された凝縮器３入口の温水温度Ｔ1 、温度センサ13によ
って検出された圧縮機１出口の冷媒ガス温度Ｔ2 及び圧
力センサ14によって検出された圧縮機１出口の冷媒ガス
圧力Ｐが入力され、ここでこれら検出値に基いて凝縮器
３と顕熱回収器８のヒートバランスを維持するのに最適
な圧縮機１の回転数が算出される。この演算器10の演算
結果は制御装置11に入力され、この制御装置11は上記遠
心圧縮機の最適回転数を目標値として上記遠心圧縮機１
に出力してその回転数、ベーン開度、デイフューザー操
作量等を調整することにより温度センサ15によって検出
された顕熱回収器８出口の温水温度Ｔ3 を所定の値に維
持する。Next, the control of this heat pump device will be described. The calculator 10 has a hot water temperature T 1 at the inlet of the condenser 3 detected by the temperature sensor 12, a refrigerant gas temperature T 2 at the outlet of the compressor 1 detected by the temperature sensor 13, and the compressor 1 detected by the pressure sensor 14. The refrigerant gas pressure P at the outlet is input, and the optimum rotation speed of the compressor 1 for maintaining the heat balance between the condenser 3 and the sensible heat recovery device 8 is calculated based on these detected values. The calculation result of the calculator 10 is input to the control device 11, and the control device 11 sets the optimum rotational speed of the centrifugal compressor as a target value.
The temperature of the hot water T 3 at the outlet of the sensible heat recovery device 8 detected by the temperature sensor 15 is maintained at a predetermined value by output to the sensible heat recovery device 8 by adjusting the rotation speed, the vane opening, the diffuser operation amount, and the like.
【００１１】しかして、凝縮器３入口の温水温度Ｔ1 を
入力しているので、凝縮器３と顕熱回収器８のヒートバ
ランス演算は現在のそれでなく無駄時間経過後の予測値
として得られ、従って、この予測値に対応する圧縮機の
最適回転数を目標値として設定できるので、ヒートポン
プ装置の制御が安定する。However, since the hot water temperature T 1 at the inlet of the condenser 3 is input, the heat balance calculation of the condenser 3 and the sensible heat recovery device 8 is obtained not as the current value but as a predicted value after the dead time has elapsed. Therefore, since the optimum rotation speed of the compressor corresponding to this predicted value can be set as the target value, the control of the heat pump device becomes stable.
【００１２】更に、この制御によれば、部分負荷追従形
制御が可能であるため、ヒートポンプ装置の効率的運転
が全運転領域において可能となり、従って、ヒートポン
プ装置の運転経費を低減できる。Further, according to this control, since the partial load follow-up type control is possible, the heat pump device can be efficiently operated in the entire operation region, and therefore the operating cost of the heat pump device can be reduced.
【００１３】[0013]
【発明の効果】本発明においては、遠心圧縮機と凝縮器
とを繋ぐ冷媒回路に遠心圧縮機から吐出された高温の冷
媒ガスの顕熱によって凝縮器で加熱された温水を加熱し
てこれを昇温させる顕熱回収器を介装したため、冷媒の
凝縮温度は温水にその需要先から要求される温度以下に
低下させることができるので、遠心圧縮機の最終段にお
ける冷媒ガスの温度を臨界温度より充分低い値とするこ
とができ、この結果、冷媒の物性及び遠心圧縮機の性能
が安定するのみならず遠心圧縮機の駆動動力が減少する
ので、ヒートポンプ装置の効率も向上する。上記凝縮器
と上記顕熱回収器のヒートバランスを演算する演算器
と、この演算器の演算結果に基いて上記遠心式圧縮機を
制御する制御装置を設ければ、ヒートポンプ装置の制御
が安定するのみならず、その運転経費を低減できる。According to the present invention, the hot water heated in the condenser is heated by the sensible heat of the high-temperature refrigerant gas discharged from the centrifugal compressor in the refrigerant circuit connecting the centrifugal compressor and the condenser. Since the sensible heat recovery device for raising the temperature is installed, the condensing temperature of the refrigerant can be lowered to the temperature required by the hot water supplier or less, so the temperature of the refrigerant gas in the final stage of the centrifugal compressor is set to the critical temperature. The value can be made sufficiently lower, and as a result, not only the physical properties of the refrigerant and the performance of the centrifugal compressor are stabilized, but also the driving power of the centrifugal compressor is reduced, so that the efficiency of the heat pump device is also improved. If a computing unit that computes the heat balance between the condenser and the sensible heat recovery unit and a control device that controls the centrifugal compressor based on the computation result of this computing unit are provided, the control of the heat pump device will be stable. In addition, the operating cost can be reduced.
【図１】本発明の１実施例を示す系統図である。FIG. 1 is a system diagram showing an embodiment of the present invention.
【図２】従来のヒートポンプ装置の系統図である。FIG. 2 is a system diagram of a conventional heat pump device.
１ 遠心圧縮機 ３ 凝縮器 ２ 冷媒回路 ８ 顕熱回収器 10 演算器 11 制御装置 1 Centrifugal compressor 3 Condenser 2 Refrigerant circuit 8 Sensible heat recovery device 10 Computing device 11 Controller
Claims (2)
と、この圧縮機で圧縮された冷媒ガスを温水と熱交換さ
せることにより凝縮液化させると同時に上記温水を加熱
する凝縮器とを備えたヒートポンプ装置において、上記
圧縮機と上記凝縮器とを繋ぐ冷媒回路に上記圧縮機から
吐出された高温の冷媒ガスの顕熱によって上記凝縮器で
加熱された温水を加熱してこれを昇温させる顕熱回収器
を介装したことを特徴とするヒートポンプ装置。1. A centrifugal compressor for compressing a refrigerant gas, and a condenser for condensing and liquefying the refrigerant gas compressed by the compressor with hot water to condense and liquefy the refrigerant gas. In the heat pump device, the hot water heated in the condenser is heated by the sensible heat of the high-temperature refrigerant gas discharged from the compressor in the refrigerant circuit connecting the compressor and the condenser to raise the temperature thereof. A heat pump device comprising a sensible heat recovery device.
ランスを演算する演算器と、この演算器の演算結果に基
いて上記遠心式圧縮機を制御する制御装置を設けたこと
を特徴とする請求項１記載のヒートポンプ装置。2. An arithmetic unit for calculating the heat balance between the condenser and the sensible heat recovery unit, and a control unit for controlling the centrifugal compressor based on the arithmetic result of the arithmetic unit. The heat pump device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4168251A JPH05332639A (en) | 1992-06-04 | 1992-06-04 | Heat pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4168251A JPH05332639A (en) | 1992-06-04 | 1992-06-04 | Heat pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05332639A true JPH05332639A (en) | 1993-12-14 |
Family
ID=15864551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4168251A Pending JPH05332639A (en) | 1992-06-04 | 1992-06-04 | Heat pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05332639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100666057B1 (en) * | 2005-01-21 | 2007-01-11 | (주)이노션 | A system for warm or cool water-production of heat-pump type |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127057A (en) * | 1986-11-14 | 1988-05-30 | 松下電器産業株式会社 | Heat pump hot-water supply machine |
| JPH03255857A (en) * | 1990-03-02 | 1991-11-14 | Hitachi Ltd | Air conditioner and heat exchanger used for the same and manufacture thereof |
-
1992
- 1992-06-04 JP JP4168251A patent/JPH05332639A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63127057A (en) * | 1986-11-14 | 1988-05-30 | 松下電器産業株式会社 | Heat pump hot-water supply machine |
| JPH03255857A (en) * | 1990-03-02 | 1991-11-14 | Hitachi Ltd | Air conditioner and heat exchanger used for the same and manufacture thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100666057B1 (en) * | 2005-01-21 | 2007-01-11 | (주)이노션 | A system for warm or cool water-production of heat-pump type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19991221 |