JPH0417341B2 - - Google Patents
Info
- Publication number
- JPH0417341B2 JPH0417341B2 JP3661884A JP3661884A JPH0417341B2 JP H0417341 B2 JPH0417341 B2 JP H0417341B2 JP 3661884 A JP3661884 A JP 3661884A JP 3661884 A JP3661884 A JP 3661884A JP H0417341 B2 JPH0417341 B2 JP H0417341B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- hot water
- heat exchanger
- temperature
- storage tank
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 132
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000010257 thawing Methods 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims 1
- 238000009835 boiling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Other Air-Conditioning Systems (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を応用したヒートポンプ
給湯暖冷房機に関するもので、特に暖房時の立上
り運転と除霜運転に貯湯温水熱を有効に利用し、
かつ、常に給湯運転を可能とするものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a heat pump hot water heater/cooler that applies a heat pump, and in particular effectively utilizes stored hot water heat for startup operation during heating and defrosting operation.
Moreover, hot water supply operation is always possible.
従来例の構成とその問題点
従来から貯湯温水熱を利用するヒートポンプ給
湯暖冷房機として、第１図に示すような構成が知
られている。第１図において、ヒートポンプサイ
クルを構成する水熱交換器１の一端は循環ポンプ
２を介して下部側配管３で貯湯槽４の下部に接続
され、また、他端は上部側配管５によつて前記貯
湯槽４の上部に接続されている。前記上部側配管
５には第１の温度検知器６が設けられており、７
はポンプ制御器、８は給水管、９は給湯管であ
る。これに連結したヒートポンプサイクルは、１
０が圧縮機、１１は第１の四方弁、１２は第２の
四方弁、１３は室外熱交換器、１４は室外フア
ン、１５は室内熱交換器、１６は室内フアン、２
９は第１の絞り装置２３と第１の電磁弁２０とか
らなる直列回路に並列に第１の逆止弁１７を連結
した第１の絞り部、３０は第２の絞り装置２４と
第２の電磁弁２１とからなる直列回路の並列に第
２の逆止弁１８を連結した第２の絞り部、３１は
第３の絞り装置２５と第３の電磁弁２２とからな
る直列回路に並列に第３の逆止弁１９を連結した
第３の絞り部、２６はアキユームレータである。
又、２７は室外熱交換器１３に設けられた第２の
温度検知器である。2. Description of the Related Art Structures of Conventional Examples and Their Problems Conventionally, a structure as shown in FIG. 1 has been known as a heat pump hot water heater/cooler that utilizes heat from stored hot water. In FIG. 1, one end of a water heat exchanger 1 constituting a heat pump cycle is connected to the lower part of a hot water storage tank 4 via a lower piping 3 via a circulation pump 2, and the other end is connected to the lower part of a hot water tank 4 through an upper piping 5. It is connected to the upper part of the hot water storage tank 4. A first temperature sensor 6 is provided in the upper pipe 5, and a first temperature sensor 7 is provided in the upper pipe 5.
is a pump controller, 8 is a water supply pipe, and 9 is a hot water supply pipe. The heat pump cycle connected to this is 1
0 is a compressor, 11 is a first four-way valve, 12 is a second four-way valve, 13 is an outdoor heat exchanger, 14 is an outdoor fan, 15 is an indoor heat exchanger, 16 is an indoor fan, 2
Reference numeral 9 denotes a first throttle section in which a first check valve 17 is connected in parallel to a series circuit consisting of a first throttle device 23 and a first electromagnetic valve 20; 30 a second throttle device 24 and a second throttle device 20; A second throttle section 31 is connected in parallel to a series circuit consisting of a third solenoid valve 21 and a second check valve 18; The third throttle section 26, which is connected to the third check valve 19, is an accumulator.
Further, 27 is a second temperature sensor provided in the outdoor heat exchanger 13.
以上の様な構成において、暖房の立上り運転お
よび除霜運転について説明する。暖房の立上り運
転の場合には室内熱交換器１５を凝縮器として、
又、除霜運転の場合には室外熱交換器１３を凝縮
器として使用し、さらに、両運転の場合とも、水
熱交換器１を蒸発器として使用するように、第
１・第２の四方弁１１，１２と第１・第２・第３
の電磁弁２０，２１，２２を動作させる。また、
循環ポンプの回転方向を給湯加熱時とは逆にし
て、貯湯槽４上部の温水が、上部側配管５、水熱
交換器１、下部側配管３を通つて貯湯槽４の下部
に冷水となつて戻るように水回路を構成してい
た。 In the above configuration, heating start-up operation and defrosting operation will be explained. In the case of startup operation of heating, the indoor heat exchanger 15 is used as a condenser,
In addition, in the case of defrosting operation, the outdoor heat exchanger 13 is used as a condenser, and in both cases, the water heat exchanger 1 is used as an evaporator. Valve 11, 12 and 1st, 2nd, 3rd
The solenoid valves 20, 21, 22 are operated. Also,
The direction of rotation of the circulation pump is reversed from the direction of hot water heating, so that the hot water in the upper part of the hot water tank 4 passes through the upper pipe 5, the water heat exchanger 1, and the lower pipe 3, and becomes cold water in the lower part of the hot water tank 4. The water circuit was configured so that the
このような従来例の場合、暖房立上り、除霜運
転のように水熱交換器１を蒸発器として使用する
場合に、水回路側の循環水流量の制御を行わず、
循環ポンプの回転数を一定としていた。第２図は
横軸に水熱交換器１の入口水温（貯湯槽４上部の
温水の温度）をとり、縦軸に水熱交換器１の出口
水温（貯湯槽４下部に蓄えられる冷水の温度）を
とつて、入口水温に対する出口水温の関係を示し
たものである。つまり、入口水温が低ければ出口
水温も低くなる。第３図は、給湯加熱時に、水熱
交換器１を凝縮器として使用する場合において、
横軸に水熱交換器１の入口水温（貯湯槽４下部に
蓄えられた冷水の温度）をとり、縦軸に水熱交換
器１出口水温（貯湯槽４上部に貯えられる温水の
温度）と循環水流量とをとつて、入口水温に対す
る出口水温と循環水流量との関係を示したもので
ある。同図からわかるように、入口水温がt1より
高い場合には、出口水温（沸上温度）をほぼ一定
（設定温度t2）となるように、循環水流量を循環
ポンプ２で制御できる。ところが入口水温がt1よ
りも低い場合には、沸上温度が設定温度t2よりも
低くなる。この理由は、同図に示すように、循環
ポンプ２の微小流量域で制御が困難であるので、
低流量域で循環水流量がほぼ一定となるためであ
る。 In the case of such a conventional example, when the water heat exchanger 1 is used as an evaporator such as during heating start-up or defrosting operation, the circulating water flow rate on the water circuit side is not controlled.
The rotation speed of the circulation pump was kept constant. In Figure 2, the horizontal axis represents the inlet water temperature of the water heat exchanger 1 (the temperature of the hot water at the top of the hot water tank 4), and the vertical axis represents the outlet water temperature of the water heat exchanger 1 (the temperature of the cold water stored at the bottom of the hot water tank 4). ) to show the relationship between the inlet water temperature and the outlet water temperature. In other words, if the inlet water temperature is low, the outlet water temperature will also be low. Figure 3 shows the case where the water heat exchanger 1 is used as a condenser when heating hot water.
The horizontal axis represents the inlet water temperature of the water heat exchanger 1 (the temperature of cold water stored in the lower part of the hot water tank 4), and the vertical axis represents the water temperature at the outlet of the water heat exchanger 1 (the temperature of hot water stored in the upper part of the hot water tank 4). This figure shows the relationship between the outlet water temperature and the circulating water flow rate with respect to the inlet water temperature. As can be seen from the figure, when the inlet water temperature is higher than t 1 , the circulating water flow rate can be controlled by the circulation pump 2 so that the outlet water temperature (boiling temperature) is approximately constant (set temperature t 2 ). However, if the inlet water temperature is lower than t1 , the boiling temperature will be lower than the set temperature t2 . The reason for this is that, as shown in the figure, it is difficult to control the circulation pump 2 in the minute flow rate range.
This is because the circulating water flow rate is almost constant in the low flow area.
このように、暖房立上り運転や除霜運転時に貯
湯槽４下部にある温度以下の冷水が蓄えられる
と、給湯運転時に設定された沸上温度まで沸上げ
られなくなり、給湯保証ができないという問題を
有していた。 In this way, if cold water at a temperature lower than that in the lower part of the hot water storage tank 4 is stored during heating start-up operation or defrosting operation, the problem arises that hot water cannot be heated to the set boiling temperature during hot water supply operation, and hot water supply cannot be guaranteed. Was.
発明の目的
本発明はこの様に従来問題となつていた冬期の
給湯保証の問題を解決したヒートポンプ給湯暖冷
房機を提供することを目的とするものである。OBJECTS OF THE INVENTION It is an object of the present invention to provide a heat pump hot water heater/cooler that solves the conventional problem of guaranteeing hot water supply in winter.
発明の構成
この目的を達成するために本発明は、暖房立上
りや除霜時に、貯湯温水熱と大気熱とを選択利用
する構成としたものである。Configuration of the Invention In order to achieve this object, the present invention is configured to selectively utilize stored hot water heat and atmospheric heat during heating start-up and defrosting.
この構成によつて、冬期の給湯保証を行うもの
である。 This configuration guarantees hot water supply in winter.
実施例の説明
以下、本発明の一実施例を第４図および第５図
を用いて説明する。第４図において、下部側配管
３に第３の温度検知器２８を設けている。なお、
第１図と同一部材には同一番号を付している。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 and 5. In FIG. 4, a third temperature sensor 28 is provided in the lower piping 3. In addition,
The same members as in FIG. 1 are given the same numbers.
以上のような構成において、第１図における場
合と同様、暖房の立上り運転の場合には室内熱交
換器１５を凝縮器として、又、除霜運転の場合に
は室外熱交換器１３を凝縮器として使用し、さら
に、両運転の場合とも、先ず、水熱交換器１を蒸
発器として使用するように、第１・第２の四方弁
１１，１２と第１・第２・第３の電磁弁２０，２
１，２２を動作させる。また、循環ポンプ２の回
転方向を給湯加熱時とは逆にして、貯湯槽４の上
部の温水は上部側配管５、水熱交換器１、下部側
配管３を通つて貯湯槽４の下部に冷水となつて戻
る。この時、第３の温度検知器２８が水熱交換器
１の出口水温を常時検出する。 In the above configuration, as in the case shown in FIG. 1, the indoor heat exchanger 15 is used as a condenser in the case of startup operation of heating, and the outdoor heat exchanger 13 is used as a condenser in the case of defrosting operation. Furthermore, in both operations, the first and second four-way valves 11 and 12 and the first, second and third electromagnetic valves are connected so that the water heat exchanger 1 is used as an evaporator. valve 20,2
Operate 1 and 22. In addition, by rotating the circulation pump 2 in the opposite direction to the direction of heating the hot water, the hot water in the upper part of the hot water tank 4 passes through the upper pipe 5, the water heat exchanger 1, and the lower pipe 3 to the lower part of the hot water tank 4. It returns as cold water. At this time, the third temperature detector 28 constantly detects the outlet water temperature of the water heat exchanger 1.
そして、水熱交換器１の出口水温が第２図にお
けるt1よりも高いある設定された水温t3になれ
ば、暖房立上り運転時には室外熱交換器１３を蒸
発器となるように、又、除霜運転時には室内熱交
換器１５を蒸発器となるように、第１・第２の四
方弁１１，１２と第１・第２・第３の電磁弁２
０，２１，２２を動作させる。さらに、循環ポン
プ２の運転を停止させる。 Then, when the outlet water temperature of the water heat exchanger 1 reaches a certain set water temperature t 3 higher than t 1 in FIG. The first and second four-way valves 11 and 12 and the first, second and third solenoid valves 2 are connected so that the indoor heat exchanger 15 functions as an evaporator during defrosting operation.
Operate 0, 21, and 22. Furthermore, the operation of the circulation pump 2 is stopped.
第５図は横軸に水熱交換器１の入口水温（貯湯
槽４上部の温水の温度）をとり、縦軸に水熱交換
器１の出口水温（貯湯槽４下部に蓄えられる冷水
の温度）をとつて、入口水温に対する出口水温の
関係を示したものである。又、同図において、循
環ポンプ２の運転停止状態も示してある。同図か
ら明らかなように、水熱交換器１を蒸発器として
使用する暖房立上り運転及び除霜運転時に、貯湯
槽４下部に蓄えられる冷水の温度は常に第２図に
おけるt1よりも高くなる。そして、水熱交換器１
を凝縮器として使用する給湯加熱運転において、
この貯湯槽４下部に蓄えられる冷水を加熱し、あ
る一定の沸上温度の温水を得ることができる。こ
の場合、第３図より明らかなように、水熱交換器
１の入口水温（貯湯槽４下部の水温）がt1よりも
高いので、循環ポンプ２の循環水量調節範囲であ
る。このため、常に給湯運転において、設定され
た沸上温度を保証することができる。 In Figure 5, the horizontal axis represents the inlet water temperature of the water heat exchanger 1 (temperature of the hot water at the top of the hot water tank 4), and the vertical axis represents the outlet water temperature of the water heat exchanger 1 (the temperature of the cold water stored at the bottom of the hot water tank 4). ) to show the relationship between the inlet water temperature and the outlet water temperature. The figure also shows a state in which the circulation pump 2 is stopped. As is clear from the figure, during heating start-up operation and defrosting operation using the water heat exchanger 1 as an evaporator, the temperature of the cold water stored in the lower part of the hot water storage tank 4 is always higher than t 1 in Fig. 2. . And water heat exchanger 1
In hot water heating operation using as a condenser,
By heating the cold water stored in the lower part of the hot water storage tank 4, hot water at a certain boiling temperature can be obtained. In this case, as is clear from FIG. 3, the inlet water temperature of the water heat exchanger 1 (the water temperature at the lower part of the hot water storage tank 4) is higher than t1 , and therefore is within the circulating water amount adjustment range of the circulation pump 2. Therefore, the set boiling temperature can always be guaranteed during hot water supply operation.
発明の効果
本発明のヒートポンプ給湯暖冷房機は、暖房の
立上り運転又は除霜運転の際、水熱交換器を蒸発
器として貯湯槽の温水熱を利用する場合に、水熱
交換器の出口水温がある設定温度以下になれば、
貯湯温水熱利用から大気熱利用運転に切りかえ制
御を行うように構成しているので次のような効果
が得られる。Effects of the Invention The heat pump hot water heating/cooling device of the present invention has the advantage that when the water heat exchanger is used as an evaporator to utilize the hot water heat in the hot water storage tank during heating start-up operation or defrosting operation, the outlet water temperature of the water heat exchanger is If the temperature falls below a certain set temperature,
Since the system is configured to control switching from operation using heat from stored hot water to use using atmospheric heat, the following effects can be obtained.
冬期に暖房立上りや除霜運転で体感向上のため
に貯湯温水熱を利用した後の給湯加熱運転におい
て、常に設定された沸上温度を保証することがで
きるという利点を有している。 It has the advantage of being able to always guarantee the set boiling temperature during hot water heating operation after the stored hot water water heat is used to improve the experience during heating start-up and defrosting operation in winter.
第１図は従来のヒートポンプ給湯暖冷房機を示
す構成図、第２図は同水熱交換器を蒸発器として
使用する場合の入口水温と出口水温の関係を示す
説明図、第３図は同水熱交換器を凝縮器として使
用する場合の入口水温と出口水温、循環水流量の
関係を示す説明図、第４図は本発明のヒートポン
プ給湯暖冷房機の一実施例を示す構成図、第５図
は同水熱交換器を蒸発器として使用する場合の入
口水温と出口水温の関係を示す説明図である。
１……水熱交換器、２……循環ポンプ、３……
下部側配管、４……貯湯槽、５……上部側配管、
７……ポンプ制御器、１０……圧縮機、１１……
第１の四方弁、１２……第２の四方弁、１３……
室外熱交換器、１５……室内熱交換器、２３，２
４，２５……第１・第２・第３の絞り装置、２８
……第３の温度検知器。
Figure 1 is a configuration diagram showing a conventional heat pump water heater/cooler, Figure 2 is an explanatory diagram showing the relationship between inlet water temperature and outlet water temperature when the same water heat exchanger is used as an evaporator, and Figure 3 is the same diagram. An explanatory diagram showing the relationship between inlet water temperature, outlet water temperature, and circulating water flow rate when a water heat exchanger is used as a condenser. FIG. 5 is an explanatory diagram showing the relationship between the inlet water temperature and the outlet water temperature when the water heat exchanger is used as an evaporator. 1... Water heat exchanger, 2... Circulation pump, 3...
Lower side piping, 4...Hot water tank, 5...Upper side piping,
7... Pump controller, 10... Compressor, 11...
First four-way valve, 12... Second four-way valve, 13...
Outdoor heat exchanger, 15...Indoor heat exchanger, 23,2
4, 25...first, second, and third aperture devices, 28
...Third temperature detector.
Claims (1)
器となるよう第１の四方弁を介して前記圧縮機に
接続される水熱交換器と、この水熱交換器に接続
される第１の絞り装置と第１の電磁弁とからなる
直列回路に並列に第１の逆止弁を連結した第１の
絞り部と、この第１の絞り部に接続される第３の
絞り装置と第３の電磁弁とからなる直列回路に並
列に第３の逆止弁を連結した第３の絞り部と、こ
の第３の絞り部に一端が接続され、他端が第２の
四方弁、アキユームレータを介して前記圧縮機に
連結される室外熱交換器と、前記第１の絞り部と
第３の絞り部の連結部と前記第２の四方弁との間
に、第２の絞り装置と第２の電磁弁とからなる直
列回路に並列に第２の逆止弁を連結した第２の絞
り部と室内熱交換器を連結した冷媒回路と、前記
水熱交換器で加熱された湯水を蓄える貯湯槽と、
この貯湯槽に接続した上部側配管、前記水熱交換
器、循環ポンプ、前記貯湯槽に接続した下部側配
管などから成る水回路とを有し、暖房立上りまた
は除霜運転の際、前記水熱交換器を蒸発器として
前記貯湯槽の温水を利用する場合に、水熱交換器
の出口水温がある設定温度以下になれば、下部側
配管に設けられた温度検知器の出力信号によつ
て、貯湯温水熱利用から大気熱利用運転に切りか
え制御を行うポンプ制御器を有する構成としたヒ
ートポンプ給湯暖冷房機。1 A compressor, a water heat exchanger connected to the compressor via a first four-way valve to serve as an evaporator during heating start-up and defrosting operation, and a first water heat exchanger connected to this water heat exchanger. a first throttle section in which a first check valve is connected in parallel to a series circuit consisting of a throttle device and a first electromagnetic valve; a third throttle device connected to the first throttle section; A third constriction section has a third check valve connected in parallel to a series circuit consisting of a solenoid valve, one end of which is connected to the third constriction section, and the other end of which is connected to a second four-way valve, a second throttling device between an outdoor heat exchanger connected to the compressor via a mulletor, a connecting portion of the first throttling portion and the third throttling portion, and the second four-way valve; A refrigerant circuit that connects an indoor heat exchanger and a second throttle section in which a second check valve is connected in parallel to a series circuit consisting of a second electromagnetic valve; A storage tank for storing hot water,
The water circuit includes an upper piping connected to the hot water storage tank, the water heat exchanger, a circulation pump, a lower piping connected to the hot water storage tank, etc. When using the exchanger as an evaporator to use hot water from the hot water storage tank, if the water temperature at the outlet of the water heat exchanger falls below a certain set temperature, an output signal from a temperature sensor installed in the lower piping will cause A heat pump hot water heater/cooler configured to include a pump controller that switches from using heat from stored hot water to using atmospheric heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59036618A JPS60181553A (en) | 1984-02-28 | 1984-02-28 | Heat-pump hot-water supply air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59036618A JPS60181553A (en) | 1984-02-28 | 1984-02-28 | Heat-pump hot-water supply air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60181553A JPS60181553A (en) | 1985-09-17 |
| JPH0417341B2 true JPH0417341B2 (en) | 1992-03-25 |
Family
ID=12474787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59036618A Granted JPS60181553A (en) | 1984-02-28 | 1984-02-28 | Heat-pump hot-water supply air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60181553A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2546958B2 (en) * | 1992-10-30 | 1996-10-23 | 本州四国連絡橋公団 | Magnetic attraction type transfer device |
-
1984
- 1984-02-28 JP JP59036618A patent/JPS60181553A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60181553A (en) | 1985-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |