JPH0132910B2 - - Google Patents
Info
- Publication number
- JPH0132910B2 JPH0132910B2 JP10182882A JP10182882A JPH0132910B2 JP H0132910 B2 JPH0132910 B2 JP H0132910B2 JP 10182882 A JP10182882 A JP 10182882A JP 10182882 A JP10182882 A JP 10182882A JP H0132910 B2 JPH0132910 B2 JP H0132910B2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- storage tank
- heat exchanger
- water storage
- heat medium
- 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 140
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0015—Domestic hot-water supply systems using solar energy
- F24D17/0021—Domestic hot-water supply systems using solar energy with accumulation of the heated water
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Description
【発明の詳細な説明】
本発明は貯湯式で給湯する給湯装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water supply device that supplies hot water using a hot water storage type.
近年省エネルギーの観点から、ガスエンジン排
熱や太陽熱を貯湯槽に貯え、給湯に利用しようと
する給湯装置の開発が盛んである。 In recent years, from the perspective of energy conservation, there has been active development of water heaters that store gas engine exhaust heat and solar heat in a hot water storage tank and use it to heat hot water.
以下図面を参照しながら、上述したような従来
の給湯装置について説明を行なう。第１図は従来
の給湯装置の構成を示すものである。図において
１は熱源機であり、２は熱媒体循環用ポンプで１
の熱源機と貯湯槽下部に位置する貯湯槽内熱交換
器３間で熱媒体を循環させる。４は貯湯槽本体
で、５は給水口、６は給湯口である。次にその動
作について説明する。まず熱源機例えば、エンジ
ンや太陽熱集熱器、などによつて加熱された熱媒
体と貯湯槽内貯湯水７とが貯湯槽内熱交換器３を
介して自然対流で熱交換する。また給湯時には、
給湯口６を開ける事で、給水を行ないながら、給
湯するものである。 The conventional water heater as described above will be explained below with reference to the drawings. FIG. 1 shows the configuration of a conventional water heater. In the figure, 1 is a heat source machine, 2 is a heat medium circulation pump, and 1
A heat medium is circulated between the heat source device and the hot water storage tank heat exchanger 3 located at the bottom of the hot water storage tank. 4 is a hot water storage tank body, 5 is a water supply port, and 6 is a hot water supply port. Next, its operation will be explained. First, a heat medium heated by a heat source device such as an engine or a solar heat collector and the hot water 7 in the hot water storage tank exchange heat by natural convection via the heat exchanger 3 in the hot water storage tank. Also, when supplying hot water,
By opening the hot water supply port 6, hot water is supplied while supplying water.
第３図は、このような貯湯式給湯装置で、貯湯
槽全体を沸上げ、その後大量給湯例えば風呂への
張水などを行ない、再び沸上げる場合の貯湯槽か
らの給湯温度の変化を示したものである。図より
明らかなように、第１図に示す従来例によると、
大量給湯使用後の給湯温度の上昇は、このような
自然対流加熱方式では貯湯槽内全体が一様に加熱
していくので第３図の破線のように緩やかにな
る。それ故、風呂への張水などの大量給湯使用
後、さらに差し湯として、高温水を必要とする場
合には、必要温度に到達までに時間がかかり、差
し湯が不可能であるという欠点を有している。 Figure 3 shows the change in the temperature of hot water supplied from the hot water storage tank when the entire hot water storage tank is boiled, and then a large amount of hot water is supplied, such as filling a bath, to boil it again. It is something. As is clear from the figure, according to the conventional example shown in Fig. 1,
In such a natural convection heating method, the temperature of hot water after a large amount of hot water supply is heated becomes gradual as shown by the broken line in FIG. 3 because the entire inside of the hot water storage tank is heated uniformly. Therefore, if high-temperature water is required for pouring hot water after using a large amount of hot water, such as when filling a bath, it takes time to reach the required temperature, making it impossible to pour hot water. have.
このような欠点を改良する方法として、第２図
に示す従来の給湯装置もある。図において熱源機
１′と、熱媒体循環用ポンプ２′は、第１図の第１
従来例と同じである。８は貯湯槽内貯湯水を循環
させる循環ポンプであり、その循環経路９には、
貯湯水７′と、熱源機１′により加熱された熱媒体
との間で熱交換させる熱交換器１０が設けてあ
る。このように貯湯水７′の強制対流による強制
対流加熱方式にすると、熱交換器１０で加熱され
た貯湯水７′が貯湯槽上部より溜まり、徐々に下
部の方に満たされていく事になる。この時循環ポ
ンプ８の循環量を制御する事により、加熱後の貯
湯水温度を高くすることができる。それ故、第３
図に示す温度曲線では大量出湯後の立上りが速
く、図の実線で示すようになり、前述の差し湯に
必要な高温の給湯水が短時間でとれる事になる。 As a method for improving such drawbacks, there is also a conventional water heater shown in FIG. In the figure, the heat source device 1' and the heat medium circulation pump 2' are
This is the same as the conventional example. 8 is a circulation pump that circulates the hot water stored in the hot water storage tank, and the circulation path 9 includes:
A heat exchanger 10 is provided for exchanging heat between the stored hot water 7' and the heat medium heated by the heat source device 1'. In this way, if the forced convection heating method is used by forced convection of the hot water 7', the hot water 7' heated by the heat exchanger 10 will accumulate from the top of the hot water storage tank and gradually fill the bottom. . At this time, by controlling the circulation amount of the circulation pump 8, the temperature of the heated hot water can be increased. Therefore, the third
In the temperature curve shown in the figure, the temperature rises quickly after a large amount of hot water is dispensed, as shown by the solid line in the figure, and the hot water required for the above-mentioned hot water supply can be obtained in a short time.
しかしながらこのような構成では、貯湯槽内の
温水を循環させるポンプが必要となり、システム
効率が問題となる場合にはポンプ動力分がけシス
テム効率が下るとともに、システム自身が複雑に
なるという欠点を有している。 However, such a configuration requires a pump to circulate the hot water in the hot water storage tank, and if system efficiency is an issue, the efficiency of the pump power distribution system decreases and the system itself becomes complicated. ing.
本発明は上記従来例の欠点に鑑み、システムと
して構成の簡単な自然対流加熱方式であり、さら
に高温給湯が早く出来て差し湯も可能な給湯装置
を提供するものである。 In view of the above-mentioned drawbacks of the conventional example, the present invention provides a water heater that uses a natural convection heating system with a simple system configuration, can quickly heat hot water, and can also pour hot water.
以下、本発明の一実施例について、図面を参照
しながら説明する。第４図は本発明一実施例にお
ける給湯装置の構成を示すものである。第４図に
おいて、１３は貯湯槽である。熱媒体循環用ポン
プ１２、熱源機１１、上部貯湯水加熱用熱交換器
１８、貯湯槽１３の下部に設けられた貯湯槽内熱
交換器１４を順次連結して熱媒体循環回路１９を
構成しており、さらに上部貯湯水加熱用熱交換器
１８と貯湯槽内熱交換器１４の間に三方電磁弁１
５を設け、この三方電磁弁５から貯湯槽内熱交換
器１４と熱媒体循環ポンプ１２の間に至る熱媒体
バイパス径路２３が設けられている。なお、上部
貯湯水加熱用熱交換器１８は熱媒体循環回路１９
において貯湯槽内熱交換器１４よりも上流に位置
している。１６は給水口、１７は貯湯槽１３の頂
部に設けられた給湯口である。２０は温水往循環
管、２１は温水戻循環管であり、それぞれ貯湯槽
１３の上部と上部貯湯水加熱用熱交換器１８の下
部、貯湯槽１３の最上部と上部貯湯水加熱用熱交
換器１９の上部とを接続し、貯湯水循環回路を構
成している。また貯湯槽１３の上部には温度セン
サー２２が設けられ、三方電磁弁１５と連動する
ように構成されている。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 shows the configuration of a water heater according to an embodiment of the present invention. In FIG. 4, 13 is a hot water storage tank. A heat medium circulation circuit 19 is constructed by sequentially connecting a heat medium circulation pump 12, a heat source device 11, an upper storage water heating heat exchanger 18, and a hot water storage tank heat exchanger 14 provided at the lower part of the hot water storage tank 13. Furthermore, a three-way solenoid valve 1 is installed between the upper hot water heating heat exchanger 18 and the hot water tank internal heat exchanger 14.
5, and a heat medium bypass path 23 extending from the three-way solenoid valve 5 to between the hot water storage tank heat exchanger 14 and the heat medium circulation pump 12 is provided. The heat exchanger 18 for heating the upper hot water is connected to the heat medium circulation circuit 19.
It is located upstream of the hot water storage tank heat exchanger 14. 16 is a water supply port, and 17 is a hot water supply port provided at the top of the hot water storage tank 13. 20 is a hot water outward circulation pipe, and 21 is a hot water return circulation pipe, which respectively connect the upper part of the hot water tank 13 and the lower part of the upper hot water heating heat exchanger 18, and the uppermost part of the hot water tank 13 and the upper hot water heating heat exchanger. It is connected to the upper part of No. 19 to form a stored hot water circulation circuit. Further, a temperature sensor 22 is provided at the upper part of the hot water storage tank 13, and is configured to operate in conjunction with the three-way solenoid valve 15.
以上のように構成された給湯装置について、以
下その動作を説明する。貯湯槽１３の上部の温度
が低く、温度センサー２２の設定温度以下の時に
は、三方電磁弁１５の作動により、第４図の矢印
（一点鎖線）の如く熱媒体が循環する。この時、
熱媒体循環回路１９内に設けた上部貯湯水加熱用
熱交換器１８によつて、貯湯水が加熱され、温水
循環管２０、上部貯湯水加熱用熱交換器１８、温
水戻循環管２１、貯湯槽１３上部の間で矢印（破
線）方向に貯湯水が循環し、貯湯槽１３の上部の
貯湯水が加熱される。 The operation of the water heater configured as described above will be described below. When the temperature in the upper part of the hot water storage tank 13 is low and is below the set temperature of the temperature sensor 22, the three-way solenoid valve 15 is operated to circulate the heat medium as indicated by the arrow (dotted chain line) in FIG. At this time,
The hot water is heated by the upper hot water heating heat exchanger 18 provided in the heat medium circulation circuit 19, and the hot water circulation pipe 20, the upper hot water heating heat exchanger 18, the hot water return circulation pipe 21, and the hot water storage The stored hot water circulates between the upper parts of the tank 13 in the direction of the arrow (dashed line), and the stored hot water in the upper part of the hot water tank 13 is heated.
次の上部温度が上昇し、温度センサー２２の設
定温度以上になつた時には、三方電磁弁１５の作
動により、第４図の実線の如く熱媒体が循環す
る。この時、上部貯湯水加熱熱交換器１８での貯
湯水との熱交換量は、熱媒体と貯湯水との温度差
が小さくそれ故少なくなり、貯湯槽内熱交換器１
４に持込まれて、そこで貯湯水と熱交換する。ま
た、ここで温度センサー２２の設定温度は、第３
図の出湯曲線で示す、差し湯必要温度TS以上に
設定してある。さらに、温水往循環管２０の貯湯
槽１３への取付位置は、その位置より上部の貯湯
槽容量が差し湯として必要な量を満足するような
位置とする。 When the next upper temperature rises and exceeds the set temperature of the temperature sensor 22, the three-way solenoid valve 15 is activated to circulate the heat medium as shown by the solid line in FIG. At this time, the amount of heat exchanged with the stored hot water in the upper hot water heating heat exchanger 18 is reduced because the temperature difference between the heat medium and the stored hot water is small, and the heat exchanger 18
4, where it exchanges heat with the stored hot water. Moreover, the set temperature of the temperature sensor 22 is the third
The required hot water temperature T S is set at or above the hot water supply curve shown in the figure. Furthermore, the hot water circulation pipe 20 is attached to the hot water storage tank 13 at a position such that the capacity of the hot water storage tank above that position satisfies the amount required for pouring hot water.
第４図の構成によれば、貯湯槽水温が低い場
合、例えば第３図において大量給湯後で使い切り
給湯温度が低く、差し湯の必要が生じた場合に
は、まず上部貯湯水加熱熱交換器１８によつて、
貯湯槽上部の差し湯に必要な量だけの貯湯水を、
貯湯水の自然循環によつて加熱する事ができる。
それゆえ、第３図の実線のような曲線となり差し
湯が短時間で可能となる。さらにこの時貯湯水の
加熱は自然循環によつて行なわれるため、ポンプ
などの動力が不要である。さらに、第４図の実施
例では、貯湯槽上部に温度センサー２２と熱媒体
循環回路１９に三方電磁弁１５を設けて、温度セ
ンサー２２のON−OFFにより三方電磁弁１５の
ON−OFF制御しているが、温度センサー２２と
三方電磁弁１５をなくして熱媒体が常に貯湯槽内
熱交換器１４を通るようにしても、貯湯槽内貯湯
水水温が高い場合には、貯湯槽上部の貯湯水を差
し湯に必要な温度まで短時間で加熱できる。 According to the configuration shown in Fig. 4, when the water temperature in the hot water storage tank is low, for example, in Fig. 3, when the hot water supply temperature is low after a large amount of hot water supply, and hot water needs to be poured, first the upper hot water storage water heating heat exchanger is used. By 18,
Pour just the amount of stored water needed for hot water at the top of the hot water storage tank.
It can be heated by the natural circulation of stored water.
Therefore, the curve becomes like the solid line in Figure 3, and hot water can be poured in a short time. Furthermore, since the stored hot water is heated by natural circulation, there is no need for power such as a pump. Furthermore, in the embodiment shown in FIG. 4, a temperature sensor 22 is provided in the upper part of the hot water storage tank and a three-way solenoid valve 15 is provided in the heat medium circulation circuit 19.
Although ON-OFF control is performed, even if the temperature sensor 22 and the three-way solenoid valve 15 are removed so that the heat medium always passes through the heat exchanger 14 in the hot water tank, if the temperature of the hot water in the hot water tank is high, The water stored at the top of the hot water tank can be heated to the temperature required for pouring hot water in a short time.
以上のように本発明は、熱媒体循環回路の貯湯
槽内熱交換器より上流に、熱媒体と貯湯槽の上部
貯湯水とを熱交換させる上部貯湯水加熱用熱交換
器を設け、貯湯水が上部貯湯水加熱用熱交換器の
下部より入つて、上部より出て貯湯槽最上部に戻
るように構成されてあるために貯湯槽上部を短時
間で加熱できて、差し湯が可能であるとともに、
上部貯湯水加熱用熱交換器での加熱は自然循環加
熱であるために、ポンプ動力を不要とする事がで
き、その実用効果は大なるものがある。 As described above, the present invention provides an upper hot water heating heat exchanger for exchanging heat between the heat medium and the hot water stored in the upper part of the hot water tank upstream of the hot water storage tank heat exchanger of the heat medium circulation circuit, and Since the hot water enters from the bottom of the upper hot water heating heat exchanger, exits from the top, and returns to the top of the hot water tank, the top of the hot water tank can be heated in a short time and hot water can be poured. With,
Since the heating in the heat exchanger for heating the hot water in the upper part is natural circulation heating, pump power is not required, which has great practical effects.
第１図は従来の自然対流加熱方式給湯装置の構
成図、第２図は従来の強制対流加熱方式給湯装置
の構成図、第３図は自然対流方式および強制対流
方式での給湯温度の変化を示す図、第４図は本発
明の一実施例における給湯装置の構成図である。
１１……熱源機、１２……熱媒体循環ポンプ、
１３……貯湯槽、１４……貯湯槽内熱交換器、１
５……三方電磁弁、１８……上部貯湯水加熱熱交
換器、１９……熱媒体循環回路、２３……熱媒体
バイパス径路。
Figure 1 is a block diagram of a conventional natural convection heating water heater, Figure 2 is a diagram of a conventional forced convection water heater, and Figure 3 shows changes in hot water temperature in natural convection and forced convection systems. The figure shown in FIG. 4 is a configuration diagram of a water heater according to an embodiment of the present invention. 11... Heat source machine, 12... Heat medium circulation pump,
13... hot water storage tank, 14... hot water storage tank heat exchanger, 1
5... Three-way solenoid valve, 18... Upper hot water heating heat exchanger, 19... Heat medium circulation circuit, 23... Heat medium bypass path.
Claims (1)
加熱用熱交換器、前記貯湯槽内下部に配設された
貯湯槽内熱交換器、前記循環ポンプの順に熱媒体
が流れる熱媒体循環回路と、前記貯湯槽上部から
上部貯湯水加熱用熱交換器を経て貯湯槽最上部に
戻る貯湯水循環回路を備え、前記上部貯湯水加熱
用熱交換器と貯湯槽内熱交換器の間に切換弁を設
けるとともに、この切換弁から前記貯湯槽内熱交
換器をバイパスして循環ポンプに至る熱媒体バイ
パス径路を設け、前記切換弁は貯湯槽上部水温に
より制御され、熱媒体の流れる経路を貯湯槽内熱
交換器側もしくは熱媒体バイパス径路側に切換え
る構成とした給湯装置。1. A heat medium circulation circuit in which a heat medium flows in the following order: a hot water storage tank, a circulation pump, a heat source device, an upper heat exchanger for heating hot water, a heat exchanger in the hot water tank disposed at the lower part of the hot water storage tank, and the circulation pump. and a hot water circulation circuit that returns from the top of the hot water storage tank to the top of the hot water storage tank via an upper hot water heating heat exchanger, and a switching valve between the upper hot water heating heat exchanger and the hot water tank internal heat exchanger. In addition, a heat medium bypass path is provided from the switching valve to the circulation pump, bypassing the heat exchanger in the hot water storage tank, and the switching valve is controlled by the upper water temperature of the hot water storage tank, and the heat medium flow path is set to the hot water storage tank. A water heater configured to switch to the internal heat exchanger side or the heat medium bypass path side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57101828A JPS58219358A (en) | 1982-06-14 | 1982-06-14 | Hot-water supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57101828A JPS58219358A (en) | 1982-06-14 | 1982-06-14 | Hot-water supplier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58219358A JPS58219358A (en) | 1983-12-20 |
| JPH0132910B2 true JPH0132910B2 (en) | 1989-07-11 |
Family
ID=14310957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57101828A Granted JPS58219358A (en) | 1982-06-14 | 1982-06-14 | Hot-water supplier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58219358A (en) |
-
1982
- 1982-06-14 JP JP57101828A patent/JPS58219358A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58219358A (en) | 1983-12-20 |
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