JP2000161778A - Hot-water storage tank for solar heat collecting device - Google Patents
Hot-water storage tank for solar heat collecting deviceInfo
- Publication number
- JP2000161778A JP2000161778A JP33575098A JP33575098A JP2000161778A JP 2000161778 A JP2000161778 A JP 2000161778A JP 33575098 A JP33575098 A JP 33575098A JP 33575098 A JP33575098 A JP 33575098A JP 2000161778 A JP2000161778 A JP 2000161778A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- temperature
- storage tank
- water storage
- hot
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 238000000071 blow moulding Methods 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 abstract description 10
- 239000004677 Nylon Substances 0.000 abstract description 9
- 229920001778 nylon Polymers 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Fluid Heaters (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、太陽熱を利用して給湯
を行うことが可能な太陽熱集熱装置に用いられる貯湯タ
ンクに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water storage tank used for a solar heat collecting apparatus capable of supplying hot water using solar heat.
【０００２】[0002]
【従来の技術】従来より、太陽熱集熱器から離れたとこ
ろに密閉型の貯湯タンクを設置し、貯湯タンクに熱交換
器を内蔵させ、専用の熱媒体（例えばプロピレングリコ
ール等の不凍液）を循環ポンプで太陽熱集熱器に供給し
て加熱し、温められた熱媒体を熱交換器に流して貯湯タ
ンク内の水を間接的に加熱する太陽熱集熱装置は公知で
ある。2. Description of the Related Art Conventionally, a closed type hot water storage tank is installed at a place away from a solar heat collector, a heat exchanger is built in the hot water storage tank, and a dedicated heat medium (for example, an antifreeze such as propylene glycol) is circulated. 2. Description of the Related Art There is known a solar heat collector that supplies heat to a solar heat collector by a pump and heats the heated heat medium through a heat exchanger to indirectly heat water in a hot water storage tank.
【０００３】このような太陽熱集熱装置を図３を用いて
説明すると、太陽熱集熱器１０と貯湯タンク１１とは、
互いに離間しているが、太陽熱集熱器１０の入口と、貯
湯タンク１１に内蔵された熱交換器１２の出口とは往き
配管１３によって連結され、また太陽熱集熱器１０の出
口と熱交換器１２の入口とは戻り配管１４によって連結
されている。また往き配管１３の途中には、循環ポンプ
１５とリザーブタンク１６が取り付けられている。[0003] Such a solar heat collector will be described with reference to FIG. 3. The solar heat collector 10 and the hot water storage tank 11 are
Although separated from each other, the inlet of the solar heat collector 10 and the outlet of the heat exchanger 12 incorporated in the hot water storage tank 11 are connected by an outgoing pipe 13, and the outlet of the solar heat collector 10 is connected to the heat exchanger. The inlet 12 is connected by a return pipe 14. A circulation pump 15 and a reserve tank 16 are mounted in the middle of the outgoing pipe 13.
【０００４】この太陽熱集熱装置では、太陽熱集熱器１
０内の熱媒体の温度が、貯湯タンク１１内の水温より一
定温度（例えば５℃）以上高くなると、循環ポンプ１５
が作動し、熱交換器１２から出た熱媒体が、往き配管１
３からリザーブタンク１６に入り、さらにリザーブタン
ク１６から循環ポンプ１５を経た後、往き配管１３を通
って太陽熱集熱器１０に流れ、太陽熱集熱器１０内で温
められる。そして太陽熱集熱器１０で温められた熱媒体
は、戻り配管１４から熱交換器１２に流れ、貯湯タンク
１１内の水を間接的に加熱して熱交換器１２から出てい
くという循環を繰り返すようにしている。In this solar heat collector, the solar heat collector 1
When the temperature of the heat medium in the water tank 0 becomes higher than the water temperature in the hot water storage tank 11 by a certain temperature (for example, 5 ° C.) or more, the circulation pump 15
Operates, and the heat medium flowing out of the heat exchanger 12 is transferred to the outgoing pipe 1.
After entering the reserve tank 16 from the reservoir tank 3 and passing through the circulation pump 15 from the reserve tank 16, it flows through the outgoing pipe 13 to the solar heat collector 10 and is heated in the solar heat collector 10. Then, the heat medium heated by the solar heat collector 10 flows from the return pipe 14 to the heat exchanger 12, indirectly heats the water in the hot water storage tank 11, and repeats the circulation of leaving the heat exchanger 12. Like that.
【０００５】そして貯湯タンク１１の天井部に接続され
た出湯管１７を介して、一定量のお湯が外部に取り出さ
れると、同量の水が貯湯タンク１１の底部に接続された
給水管１８を介して貯湯タンク１１内に供給される。こ
の給水管１８の途中には、減圧逆止弁１９が取り付けら
れている。また貯湯タンク１１の底部は、排水管２０も
接続されており、貯湯タンク１１の内部を掃除したり、
貯湯タンク１１を移設する際には、この排水管２０から
お湯を取り出すことができる。When a certain amount of hot water is taken out through a tapping pipe 17 connected to the ceiling of the hot water storage tank 11, the same amount of water is supplied to a water supply pipe 18 connected to the bottom of the hot water storage tank 11. The hot water is supplied into the hot water storage tank 11 through the hot water storage tank. In the middle of the water supply pipe 18, a pressure-reducing check valve 19 is attached. A drain pipe 20 is also connected to the bottom of the hot water storage tank 11 to clean the inside of the hot water storage tank 11,
When the hot water storage tank 11 is moved, hot water can be taken out from the drain pipe 20.
【０００６】しかしながら集熱効率の高い条件下（例え
ば夏期の晴天日）で、貯湯タンク１１内のお湯が取り出
されることなく、熱媒体が循環し続けると、貯湯タンク
１１内のお湯の温度がどんどん上昇し、貯湯タンク１１
の構成部材が短期間で劣化しやすくなるという問題があ
る。However, under conditions of high heat collection efficiency (eg, a sunny day in summer), if the heat medium continues to circulate without the hot water in the hot water storage tank 11 being taken out, the temperature of the hot water in the hot water storage tank 11 will rise steadily. And hot water storage tank 11
However, there is a problem that the constituent member is easily deteriorated in a short period of time.
【０００７】そのため通常は、貯湯タンク１１の側壁に
ワックスサーモタイプの温圧弁又は温調弁２１を取り付
け、熱交換器１２付近のお湯の温度が一定温度（例えば
８０℃）以上になると、この温圧弁又は温調弁２１から
熱交換器１２付近のお湯を外部に取り出し、それに代わ
って給水管１８から新たな水を貯湯タンク１１内に供給
することによって貯湯タンク１１内のお湯の温度を下げ
るようにしている。[0007] Therefore, usually, a thermostatic valve or temperature control valve 21 of a wax thermo type is attached to the side wall of the hot water storage tank 11, and when the temperature of the hot water near the heat exchanger 12 exceeds a certain temperature (for example, 80 ° C.), this temperature is increased. The temperature of the hot water in the hot water storage tank 11 is reduced by taking out hot water near the heat exchanger 12 from the pressure valve or the temperature control valve 21 and supplying new water into the hot water storage tank 11 from the water supply pipe 18 instead. I have to.
【０００８】[0008]
【発明が解決しようとする課題】ところで従来より太陽
熱集熱装置用貯湯タンクには、減圧逆止弁を介して水道
から直接、水が供給されるため、通常は、耐圧強度に優
れたステンレス製タンクが用いられている。However, since the water is directly supplied to the hot water storage tank for the solar heat collecting apparatus from the water supply through the pressure-reducing check valve, the stainless steel is usually made of stainless steel having excellent pressure resistance. A tank is used.
【０００９】しかしながらステンレス製タンクは、重量
が大きいため、持ち運びや据付工事に大変手間がかか
り、作業者の負担も大きかった。またステンレス製タン
クは、複数枚のステンレス板を溶接して製作するため、
製作に手間がかかり、コストも高くなった。However, since the stainless steel tank is heavy, it takes a lot of time to carry and install the tank, and the burden on the operator is great. Stainless steel tanks are manufactured by welding multiple stainless steel plates.
The production took time and cost.
【００１０】このような事情から、本出願人は、特願平
１０−３０５２４８号において、プロー成形によって中
空の円筒状に成形された樹脂製の内槽と繊維強化樹脂体
からなる被覆層を備えてなる貯湯タンクを提案してい
る。[0010] Under such circumstances, the present applicant has disclosed in Japanese Patent Application No. 10-305248, a resin-made inner tank formed into a hollow cylindrical shape by blow molding and a coating layer made of a fiber-reinforced resin body. Hot water storage tanks.
【００１１】この貯湯タンクは、軽量であり、しかも接
合部がないため、漏水の虞れもないという利点を有して
いる。This hot water storage tank has the advantage that it is lightweight and has no joints, so there is no risk of water leakage.
【００１２】しかしながら、このような形態の貯湯タン
クの側壁に温圧弁や温調弁を取り付けるために孔を形成
すると、タンクの強度が著しく低下する虞れがあり、そ
の側壁に温圧弁や温調弁を取り付けることは困難であっ
た。However, if holes are formed on the side wall of such a hot water storage tank for mounting a hot-pressure valve or a temperature control valve, the strength of the tank may be significantly reduced. It was difficult to install the valve.
【００１３】本発明は、上記事情に鑑みなされたもので
あり、樹脂製の内槽を備えてなる貯湯タンクを使用し、
これに温圧弁や温調弁を取り付けても、強度が著しく低
下する虞れがなく、また湯温が上昇しても、タンクの構
成部材が短期間で劣化することがない太陽熱集熱装置用
貯湯タンクを提供することを目的とする。The present invention has been made in view of the above circumstances, and uses a hot water storage tank having a resin inner tank,
Even if a temperature pressure valve or a temperature control valve is attached to this, there is no danger that the strength will be significantly reduced, and even if the temperature of the hot water rises, the components of the tank will not deteriorate in a short period of time. It is intended to provide a hot water storage tank.
【００１４】[0014]
【課題を解決するための手段】本発明の太陽熱集熱装置
用貯湯タンクは、底部に給水管が取り付けられ、底部付
近に熱交換器が内蔵されてなる貯湯タンクであって、天
井部には、熱交換器付近まで延びる導水管と、この導水
管内に天井部付近のお湯の温度を検知する感温部が挿入
された温圧弁又は温調弁が取り付けられてなり、天井部
付近の湯温が一定温度以上になると、導水管から温圧弁
又は温調弁を通して熱交換器付近のお湯が外部に取り出
され、この取り出されたお湯と同量の水が給水管から内
部に供給されるようにしてなることを特徴とする。SUMMARY OF THE INVENTION A hot water storage tank for a solar heat collecting apparatus according to the present invention is a hot water storage tank having a water supply pipe attached to a bottom and a heat exchanger built in near the bottom. A water pipe extending to the vicinity of the heat exchanger, and a temperature control valve or a temperature control valve in which a temperature sensing part for detecting the temperature of the hot water near the ceiling is attached. When the temperature exceeds a certain temperature, the hot water near the heat exchanger is taken out from the water pipe through a hot-pressure valve or a temperature control valve, and the same amount of water as the hot water taken out is supplied inside from the water supply pipe. It is characterized by becoming.
【００１５】また本発明の太陽熱集熱装置用貯湯タンク
は、ブロー成形によって中空の円筒状に成形された樹脂
製の内槽と、繊維強化樹脂体からなる被覆層を備えてな
ることを特徴とする。Further, the hot water storage tank for a solar heat collecting apparatus of the present invention is characterized by comprising a resin inner tank formed into a hollow cylindrical shape by blow molding, and a coating layer made of a fiber-reinforced resin body. I do.
【００１６】[0016]
【作用】前述したように、ブロー成形によって中空の円
筒状に成形された樹脂製の内槽と、繊維強化樹脂体から
なる被覆層を備えてなる貯湯タンクの側壁部に孔を形成
すると、強度が著しく低下する虞れがあるが、その天井
部や底部に孔を形成しても、強度の著しい低下は招かな
い。As described above, when holes are formed in the side wall of a hot water storage tank having a resin-made inner tank formed into a hollow cylindrical shape by blow molding and a coating layer made of a fiber-reinforced resin body, the strength is improved. However, even if holes are formed in the ceiling and the bottom, no significant decrease in strength is caused.
【００１７】そこで本発明では、貯湯タンクの天井部に
温圧弁又は温調弁を取り付けることによって、樹脂製の
貯湯タンクを使用しても、強度の著しい低下を招かない
ようにしている。因みに温圧弁とは、温度と圧力を検知
する感温部を備え、温度と圧力の変動によって弁が開閉
するものである。従って温圧弁を使用すると、湯温が一
定温度以上になった場合に弁が開くと共に、貯湯タンク
内の圧力が一定値以上になった場合にも弁が開くため、
貯湯タンク内のお湯の最高温度と最大圧力を規制でき
る。また温調弁とは、温度を検知する感温部を備え、温
度の変動によって弁が開閉するものである。Therefore, in the present invention, by attaching a hot-pressure valve or a temperature control valve to the ceiling of the hot water storage tank, even if a resin-made hot water storage tank is used, the strength is not significantly reduced. Incidentally, the hot-pressure valve is provided with a temperature sensing part for detecting the temperature and the pressure, and the valve is opened and closed by the fluctuation of the temperature and the pressure. Therefore, when a hot-pressure valve is used, the valve opens when the hot water temperature exceeds a certain temperature, and also opens when the pressure in the hot water storage tank becomes a certain value or more.
The maximum temperature and pressure of hot water in the hot water storage tank can be regulated. The temperature control valve has a temperature sensing part for detecting a temperature, and the valve opens and closes due to a change in temperature.
【００１８】この種の貯湯タンク内には、お湯が充満さ
れ、お湯の温度は、天井部付近が最も高くなるが、本発
明においては、天井部付近の湯温が一定温度以上になる
と、導水管から温圧弁又は温調弁を通して熱交換器付近
のお湯が外部に取り出されるようになっているため、集
熱効率の高い条件下で貯湯タンク内のお湯が長時間取り
出されることなく、湯温が上昇しても、その最高温度
が、温圧弁や温調弁の設定温度以上になることはない。This type of hot water storage tank is filled with hot water, and the temperature of the hot water is highest near the ceiling, but in the present invention, when the temperature of the hot water near the ceiling becomes higher than a certain temperature, the temperature is lowered. Because the hot water near the heat exchanger is taken out from the water pipe through a hot pressure valve or a temperature control valve, the hot water in the hot water storage tank is not taken out for a long time under conditions of high heat collection efficiency, and the hot water temperature is reduced. Even if the temperature rises, the maximum temperature does not exceed the set temperature of the temperature control valve or the temperature control valve.
【００１９】すなわち温圧弁や温調弁の設定温度を、例
えば８０℃に設定しておくと、貯湯タンク内のお湯の温
度が上昇し、その水面付近の湯温が８０℃に達すると、
温圧弁又は温調弁の感温部がそれを検知して弁が開き、
熱交換器付近のお湯が導水管から温圧弁又は温調弁を通
して外部に取り出され、それに代わって新たな水が貯湯
タンクの底部に設けられた給水管を通して貯湯タンク内
に供給される。そしてこの供給された水が導水管を通し
て温圧弁又は温調弁の感温部に達し、感温部付近の湯温
が８０℃未満まで下がると弁が閉じるため、給水管から
の水の供給は短時間で停止することになる。That is, if the set temperature of the temperature control valve or the temperature control valve is set to, for example, 80 ° C., the temperature of the hot water in the hot water storage tank rises, and when the temperature near the water surface reaches 80 ° C.
The temperature sensing part of the temperature or pressure control valve detects it and the valve opens,
Hot water in the vicinity of the heat exchanger is taken out of the water pipe through a hot-pressure valve or a temperature control valve, and instead, new water is supplied into the hot water storage tank through a water supply pipe provided at the bottom of the hot water storage tank. Then, the supplied water reaches the temperature sensing part of the temperature and pressure control valve or the temperature regulating valve through the water pipe, and when the temperature of the hot water near the temperature sensing part falls below 80 ° C., the valve closes. It will stop in a short time.
【００２０】従って単に貯湯タンクの天井部に温圧弁又
は温調弁を取り付け、その感温部によって天井部付近の
お湯の温度を検知し、その温度が一定以上になった時、
天井部付近のお湯から外部に取り出し、その代わりに底
部から給水を行うと、天井部付近の湯温が設定温度未満
になった時には、貯湯タンクに貯められていた大部分の
お湯が水と入れ替わっていることになるため不経済であ
るが、本発明では、天井部から熱交換器付近まで延びる
導水管が取り付けられ、この導水管内に温圧弁又は温調
弁の感温部が挿入されているため、導水管から貯湯タン
ク内の熱交換器付近のお湯が取り出され、その代わりに
底部の給水管から新たな水が供給され、それが導水管ま
で達すると、その水が短時間で導水管を通って感温部に
達し、感温部付近の湯温を低下させて弁が閉じることに
なるため、貯湯タンクの熱交換器付近とその下方のお湯
だけが水と置換するだけで済む。Therefore, a hot-pressure valve or a temperature control valve is simply attached to the ceiling of the hot water storage tank, and the temperature sensing part detects the temperature of the hot water near the ceiling, and when the temperature reaches a certain level or more,
When hot water near the ceiling is taken out to the outside and water is supplied from the bottom instead, most of the hot water stored in the hot water storage tank is replaced with water when the temperature near the ceiling falls below the set temperature. However, in the present invention, a water guide pipe extending from the ceiling to the vicinity of the heat exchanger is attached, and the temperature sensing part of the temperature control valve or the temperature control valve is inserted into the water guide pipe. Therefore, hot water near the heat exchanger in the hot water storage tank is taken out of the water pipe, and new water is supplied instead from the water supply pipe at the bottom, and when it reaches the water pipe, the water is quickly drained. Thus, the temperature of the hot water near the temperature sensing part is lowered and the valve is closed, so that only the hot water near the heat exchanger of the hot water storage tank and below the heat exchanger needs to be replaced with water.
【００２１】本発明で使用する導水管としては、水に対
して無害で、一定の耐熱性を有し、天井部に取り付け可
能であれば、いずれの材料や寸法の管でも良く、例えば
内径φ２０ｍｍ以上のナイロンホースが使用できる。The water guide pipe used in the present invention may be any pipe or pipe of any material and dimensions as long as it is harmless to water, has a certain heat resistance, and can be attached to the ceiling. The above nylon hoses can be used.
【００２２】また本発明においては、ブロー成形によっ
て中空の円筒状に成形された樹脂製の内槽と、繊維強化
樹脂体からなる被覆層を備えてなる貯湯タンクを使用す
ると、軽量で、水道水の水質による腐食や漏水の虞れが
ないため好ましい。Further, in the present invention, when a resin-made inner tank formed into a hollow cylindrical shape by blow molding and a hot water storage tank provided with a coating layer made of a fiber-reinforced resin body are used, the weight of the tap water can be reduced. This is preferable because there is no risk of corrosion or water leakage due to the water quality of water.
【００２３】[0023]
【実施例】以下、本発明の太陽熱集熱装置用貯湯タンク
を実施例に基づいて詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hot water storage tank for a solar heat collecting apparatus according to the present invention will be described in detail based on embodiments.
【００２４】図１は、本発明に係る貯湯タンクを示す説
明図であり、図２は、図１の貯湯タンクを使用した太陽
熱集熱装置を示す説明図である。FIG. 1 is an explanatory view showing a hot water storage tank according to the present invention, and FIG. 2 is an explanatory view showing a solar heat collecting apparatus using the hot water storage tank of FIG.
【００２５】図中、太陽熱集熱器１０は、真空ガラス管
（外径φ１２６ｍｍ、全長２８３０ｍｍ）の中に、表面
を選択吸収膜処理した幅１１６ｍｍ、長さ２６２０ｍ
ｍ、厚み０．４ｍｍの鉄製集熱板と、この集熱板の中心
軸にプレスでかしめられた外径φ１５．８８ｍｍ、厚み
０．６ｍｍの銅製熱媒管をサポータで保持して収納した
形態を有する集熱管を１２本使用したものであり、その
有効集熱面積は、３．６４ｍ2である。In the figure, a solar heat collector 10 is a vacuum glass tube (outer diameter φ126 mm, total length 2830 mm) in which the surface is selectively absorbing film-treated with a width of 116 mm and a length of 2620 m.
m, a heat collecting plate made of iron having a thickness of 0.4 mm, and a copper heat medium pipe having an outer diameter of φ15.88 mm and a thickness of 0.6 mm crimped on a central axis of the heat collecting plate by a press and stored by a supporter. , And the effective heat collecting area thereof is 3.64 m 2 .
【００２６】また貯湯タンク１１を構成する樹脂製の内
槽２２は、ブロー成形によって中空の円筒状に成形され
たものであり、その天井部と底部は、外方に膨出した曲
面形状を有している。この内槽２２は、ポリブデン樹脂
から形成され、外径５００ｍｍ、全長１２１０ｍｍ、厚
み３ｍｍの寸法を有し、貯湯量は約２００リットルであ
る。内槽２２の天井部には、外方に突出した２本の連通
管２２ａ、２２ｂが設けられ、中央に設けられた一方の
連通管２２ａは出湯口としての役割を有し、他方の連通
管２２ｂは、温圧弁２３の取り付け部としての役割を有
する。また内槽２２の底部にも、外方に突出した２本の
連通管２２ｃ、２２ｄが設けられ、これらは各々給水口
と排水口としての役割を有する。連通管２２ａ、２２
ｃ、２２ｄの内径は、いずれもφ２３ｍｍであり、配管
用金具２４、２５、２６を用いて各々出湯管１７、給水
管１８、排水管２０に接続される。また連通管２２ｂの
内径は、φ２３ｍｍであり、取り付け金具２７を介して
温圧弁２３が取り付けられる。尚、給水管１８には、設
定圧力が０．８０ｋｇ／ｃｍ2の減圧逆止弁１９が取り
付けられている。The resin inner tank 22 constituting the hot water storage tank 11 is formed into a hollow cylindrical shape by blow molding, and its ceiling and bottom have a curved surface shape bulging outward. are doing. The inner tank 22 is formed of a polybutene resin, has an outer diameter of 500 mm, a total length of 1210 mm, and a thickness of 3 mm, and has a hot water storage capacity of about 200 liters. Two communicating pipes 22a and 22b protruding outward are provided on the ceiling of the inner tank 22, and one communicating pipe 22a provided at the center has a role as a tap hole, and the other communicating pipe. 22 b has a role as a mounting portion for the hot-pressure valve 23. Two communicating pipes 22c and 22d projecting outward are also provided at the bottom of the inner tank 22, and these serve as a water supply port and a drain port, respectively. Communication pipes 22a, 22
The inside diameters of c and 22d are each φ23 mm, and are connected to the tapping pipe 17, the water supply pipe 18, and the drain pipe 20 by using pipe fittings 24, 25, and 26, respectively. The inner diameter of the communication pipe 22 b is φ23 mm, and the hot-pressure valve 23 is attached via a fitting 27. The water supply pipe 18 is provided with a pressure reducing check valve 19 having a set pressure of 0.80 kg / cm 2 .
【００２７】貯湯タンク１１の底部を貫通して内部に挿
入された熱交換器１２は、ステンレス製パイプから形成
されており、このパイプは、外径φ１６ｍｍ、全長８ｍ
の寸法を有し、伝熱面積は０．４ｍ2であり、内槽２２
の底部から上方に８０〜３４０ｍｍの範囲で、螺旋状に
取り付けられている。この熱交換器１２は、内槽２２の
ブロー成形時に一体成形されたものである。The heat exchanger 12 inserted through the bottom of the hot water storage tank 11 is formed of a stainless steel pipe having an outer diameter of 16 mm and a total length of 8 m.
The heat transfer area is 0.4 m 2 ,
Is helically mounted in a range of 80 to 340 mm upward from the bottom. The heat exchanger 12 is integrally formed when the inner tank 22 is blow-molded.
【００２８】内槽２２の天井部と底部の外表面には、強
度の向上を図るため、金属製補強板２８、２９が配設さ
れ、天井部に配設された金属製補強板２８には、内槽２
２の連通管２２ａを挿入可能な管状部２８ａと連通管２
２ｂを挿入可能な小孔２８ｂとが形成されている。また
底部に配設された金属製補強板２９には、内槽２２の連
通管２２ｃ、２２ｄを挿入可能な管状部２８ｃ、２８ｄ
と、熱交換器１２を貫通するための小孔が２箇所形成さ
れている。内槽２２と各金属製補強板２８、２９の外表
面には、連通管２２ａ、２２ｂ、２２ｃ、２２ｄや熱交
換器１２の貫通部分を除いて、ほぼ全面に亘って繊維強
化樹脂体３０が被覆され、これによって貯湯タンク１１
全体の強度の向上を図っている。尚、金属製補強板２
８、２９は、平均肉厚が３．２ｍｍの鉄板であり、また
繊維強化樹脂体３０は、エポキシ樹脂を含浸させたガラ
ス繊維を２．５ｍｍの厚みで回巻きした後、乾燥させた
ものである。Metal reinforcing plates 28 and 29 are provided on the outer surface of the ceiling and the bottom of the inner tank 22 in order to improve the strength, and the metal reinforcing plates 28 provided on the ceiling are provided with the metal reinforcing plates 28 and 29. , Inner tank 2
The tubular portion 28a into which the second communication tube 22a can be inserted and the communication tube 2
A small hole 28b into which 2b can be inserted is formed. Further, tubular portions 28c and 28d into which the communication pipes 22c and 22d of the inner tank 22 can be inserted are provided on the metal reinforcing plate 29 provided at the bottom.
And two small holes for penetrating the heat exchanger 12 are formed. On the outer surfaces of the inner tank 22 and the metal reinforcing plates 28 and 29, a fiber-reinforced resin body 30 is provided over substantially the entire surface except for the communicating pipes 22a, 22b, 22c and 22d and the penetrating portion of the heat exchanger 12. The hot water storage tank 11
The overall strength is improved. The metal reinforcing plate 2
8 and 29 are iron plates having an average thickness of 3.2 mm, and the fiber reinforced resin body 30 is obtained by winding glass fibers impregnated with an epoxy resin to a thickness of 2.5 mm and then drying. is there.
【００２９】内槽２２の天井部に位置する連通管２２ａ
は、天井部に配設される金属製補強板２８の所定箇所に
形成された管状部２８ａに挿入され、この連通管２２ａ
と管状部２８ａとは、固定治具（図示せず）によって固
定されている。A communication pipe 22a located on the ceiling of the inner tank 22
Is inserted into a tubular portion 28a formed at a predetermined position of a metal reinforcing plate 28 provided on the ceiling, and the communication pipe 22a
And the tubular portion 28a are fixed by a fixing jig (not shown).
【００３０】また天井部に位置するもう一つの連通管２
２ｂは、金属製補強板２８の所定箇所に形成された小孔
２８ｂに挿入され、この連通管２２ｂには取り付け金具
２７を介してワックスサーモタイプの温圧弁２３が取り
付けられている。またこの連通管２２ｂには、熱交換器
１２付近まで延びるナイロンホース３１も取り付けら
れ、このナイロンホース３１内には、温圧弁２３の感温
部２３ａが挿入され、この感温部２３ａが内槽２２の天
井部付近に位置し、天井部付近のお湯の温度を検知する
ようになっている。連通管２２ｂ、取り付け金具２７及
びナイロンホース３１は、固定治具（図示せず）によっ
て固定されている。Another communication pipe 2 located on the ceiling
2 b is inserted into a small hole 28 b formed at a predetermined position of the metal reinforcing plate 28, and a wax thermo-type hot-pressure valve 23 is attached to the communication pipe 22 b via a fitting 27. A nylon hose 31 extending to the vicinity of the heat exchanger 12 is also attached to the communication pipe 22b. A temperature sensing part 23a of the hot-pressure valve 23 is inserted into the nylon hose 31, and the temperature sensing part 23a is connected to the inner tank. 22 is located near the ceiling and detects the temperature of hot water near the ceiling. The communication pipe 22b, the fitting 27, and the nylon hose 31 are fixed by a fixing jig (not shown).
【００３１】温圧弁２３は、天井部付近の湯温が、その
設定温度（例えば８０℃）に達すると、弁が開いてナイ
ロンホース３１から温圧弁２３を通して、熱交換器１２
付近のお湯が外部に取り出される。そして底部の給水管
１８から貯湯タンク１１内に新たな水が供給され、この
水がナイロンホース３１内を通って感温部２３ａに達
し、感温部２３ａ付近の湯温が設定温度未満まで低下す
ると、再び温圧弁２３が閉じ、給水が停止する。従っ
て、熱交換器１２付近とそれより下方のお湯だけが取り
出され、それと同量の水が供給され、熱交換器１２より
上方のお湯は、水と混合されず、湯温があまり低下しな
いため、経済的である。When the temperature of the hot water near the ceiling reaches the set temperature (for example, 80 ° C.), the valve opens and the heat exchanger 12 passes through the nylon hose 31 through the hot pressure valve 23.
Nearby hot water is taken out. Then, new water is supplied into the hot water storage tank 11 from the water supply pipe 18 at the bottom, and this water passes through the nylon hose 31 to reach the temperature sensing portion 23a, and the temperature of the hot water near the temperature sensing portion 23a drops below the set temperature. Then, the temperature and pressure valve 23 is closed again, and the water supply is stopped. Therefore, only the hot water near the heat exchanger 12 and below it is taken out, the same amount of water is supplied, and the hot water above the heat exchanger 12 is not mixed with the water and the temperature of the hot water does not decrease so much. Is economical.
【００３２】この貯湯タンク１１の重量は約２０ｋｇで
あり、その耐圧強度を測定したところ、水圧で１９ｋｇ
／ｃｍ2であり、同寸法のステンレス製タンクに比べる
と、はるかに軽量でありながら、同等の耐圧強度を有し
ていた。The hot water storage tank 11 weighs about 20 kg, and its pressure resistance was measured.
/ Cm 2, which is much lighter than a stainless steel tank of the same dimensions, but has the same pressure resistance.
【００３３】上記した太陽熱集熱器１０と貯湯タンク１
１は、太陽熱集熱器１０の入口と熱交換器１２の出口を
連結する往き配管１３と、太陽熱集熱器１０の出口と熱
交換器１２の入口を連結する戻り配管１４によって接続
されている。The above-mentioned solar heat collector 10 and hot water storage tank 1
1 is connected by an outgoing pipe 13 connecting the inlet of the solar heat collector 10 and the outlet of the heat exchanger 12 and a return pipe 14 connecting the outlet of the solar heat collector 10 and the inlet of the heat exchanger 12. .
【００３４】往き配管１３には、循環ポンプ１５と、リ
ザーブタンク１６が取り付けられている。リザーブタン
ク１６は、ポリプロピレン樹脂成形品であり、その容量
は約３０リットルである。循環ポンプ１５の出力は、１
００Ｖ・１１５Ｗであり、熱媒体としては、５０％濃度
のプロピレングリコールの不凍液を使用した。A circulation pump 15 and a reserve tank 16 are attached to the outgoing pipe 13. The reserve tank 16 is a molded product of polypropylene resin and has a capacity of about 30 liters. The output of the circulation pump 15 is 1
The heat medium used was an antifreeze of propylene glycol having a concentration of 50%.
【００３５】このような太陽熱集熱装置においては、循
環ポンプ１５が作動すると、熱交換器１２から出た熱媒
体は、往き配管１３からリザーブタンク１６に入り、さ
らにリザーブタンク１６から出て、循環ポンプ１５を経
た後、往き配管１３を通って太陽熱集熱器１０に流れ、
戻り配管１４から熱交換器１２に流れ、貯湯タンク１１
内の水を間接的に加熱して熱交換器１２から出ていく。In such a solar heat collecting apparatus, when the circulating pump 15 operates, the heat medium flowing out of the heat exchanger 12 enters the reserve tank 16 through the outgoing pipe 13, further exits the reserve tank 16, and circulates. After passing through the pump 15, it flows to the solar heat collector 10 through the going pipe 13,
It flows from the return pipe 14 to the heat exchanger 12, and the hot water storage tank 11
The water inside is heated indirectly and leaves the heat exchanger 12.
【００３６】そして貯湯タンク１１の内槽２２の天井部
に設けられた連通管（出湯管）２２ａを介して、出湯管
１７から一定量のお湯が外部に取り出されると、同量の
水が貯湯タンク１１の内槽２２の底部に設けられた連通
管（給水口）２２ｃを介して給水管１８から貯湯タンク
１１内に供給される。また貯湯タンク１１の内槽２２の
底部に設けられた別の連通管（排水口）２２ｄから貯湯
タンク１１内のお湯を抜き取ることも可能である。When a certain amount of hot water is taken out of the tapping pipe 17 through a communication pipe (a tapping pipe) 22a provided on the ceiling of the inner tank 22 of the hot water storage tank 11, the same amount of water is stored. The hot water is supplied from the water supply pipe 18 into the hot water storage tank 11 via a communication pipe (water supply port) 22 c provided at the bottom of the inner tank 22 of the tank 11. It is also possible to extract hot water in the hot water storage tank 11 from another communication pipe (drain port) 22d provided at the bottom of the inner tank 22 of the hot water storage tank 11.
【００３７】[0037]
【発明の効果】以上のように本発明の太陽熱集熱装置用
貯湯タンクは、樹脂製の内槽を備えてなる貯湯タンクを
使用しても、その天井部に温圧弁や温調弁を取り付ける
ため、強度が著しく低下することはなく、また内部に貯
められたお湯の温度が一定値以上に上昇した時に、お湯
の一部だけを取り出し、それと同量の新たな水を供給し
て湯温を低下させることが可能であるため、貯湯タンク
の構成部材が短期間で劣化するのを防止できると共に経
済的である。As described above, in the hot water storage tank for a solar heat collecting apparatus of the present invention, even when a hot water storage tank having an inner tank made of resin is used, a hot-pressure valve or a temperature control valve is attached to the ceiling. Therefore, the strength does not drop significantly, and when the temperature of the hot water stored inside rises above a certain value, only a part of the hot water is taken out and the same amount of fresh water is supplied to supply hot water Therefore, it is possible to prevent the constituent members of the hot water storage tank from being deteriorated in a short time, and it is economical.
【図１】本発明の太陽熱集熱装置用貯湯タンクを示す概
略縦断面図である。FIG. 1 is a schematic longitudinal sectional view showing a hot water storage tank for a solar heat collecting apparatus of the present invention.
【図２】図１の貯湯タンクを使用した太陽熱集熱装置を
示す説明図である。FIG. 2 is an explanatory view showing a solar heat collecting apparatus using the hot water storage tank of FIG.
【図３】従来の太陽熱集熱装置を示す説明図である。FIG. 3 is an explanatory view showing a conventional solar heat collecting apparatus.
１０ 太陽熱集熱器 １１ 貯湯タンク １２ 熱交換器 １３ 往き配管 １４ 戻り配管 １５ 循環ポンプ １６ リザーブタンク １７ 出湯管 １８ 給水管 ２０ 排水管 ２１ 温圧弁又は温調弁 ２２ 内槽 ２３ 温圧弁 ２３ａ 感温部 ２８、２９ 金属製補強板 ３０ 繊維強化樹脂体 ３１ ナイロンホース DESCRIPTION OF SYMBOLS 10 Solar heat collector 11 Hot water storage tank 12 Heat exchanger 13 Outgoing pipe 14 Return pipe 15 Circulation pump 16 Reserve tank 17 Hot water pipe 18 Water supply pipe 20 Drain pipe 21 Temperature control valve or temperature control valve 22 Inner tank 23 Temperature control valve 23a Temperature sensing part 28, 29 Metal reinforcing plate 30 Fiber reinforced resin body 31 Nylon hose
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｋ 63:00 105:08 Ｂ２９Ｌ 22:00 31:18 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B29K 63:00 105: 08 B29L 22:00 31:18
Claims (2)
に熱交換器が内蔵されてなる貯湯タンクであって、天井
部には、熱交換器付近まで延びる導水管と、この導水管
内に天井部付近のお湯の温度を検知する感温部が挿入さ
れた温圧弁又は温調弁が取り付けられてなり、天井部付
近の湯温が一定温度以上になると、導水管から温圧弁又
は温調弁を通して熱交換器付近のお湯が外部に取り出さ
れ、取り出されたお湯と同量の水が給水管から内部に供
給されるようにしてなることを特徴とする太陽熱集熱装
置用貯湯タンク。1. A hot water storage tank having a water supply pipe attached to a bottom and a heat exchanger built in the vicinity of the bottom, a water pipe extending to the vicinity of the heat exchanger on a ceiling, and a ceiling in the water pipe. A thermo-pressure valve or temperature control valve with a temperature sensing part inserted to detect the temperature of the hot water near the ceiling is attached. Hot water in the vicinity of the heat exchanger is taken out to the outside through a water supply tank, and the same amount of water as the taken out hot water is supplied to the inside from a water supply pipe.
された樹脂製の内槽と、繊維強化樹脂体からなる被覆層
を備えてなることを特徴とする請求項１記載の太陽熱集
熱装置用貯湯タンク。2. The solar heat collecting apparatus according to claim 1, further comprising a resin inner tank formed into a hollow cylindrical shape by blow molding, and a coating layer formed of a fiber-reinforced resin body. Hot water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33575098A JP2000161778A (en) | 1998-11-26 | 1998-11-26 | Hot-water storage tank for solar heat collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33575098A JP2000161778A (en) | 1998-11-26 | 1998-11-26 | Hot-water storage tank for solar heat collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000161778A true JP2000161778A (en) | 2000-06-16 |
Family
ID=18292053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33575098A Pending JP2000161778A (en) | 1998-11-26 | 1998-11-26 | Hot-water storage tank for solar heat collecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000161778A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012511137A (en) * | 2008-12-08 | 2012-05-17 | ヘンリ ペテリ ベヘール ベスローテン フェンノートシャップ | Container with hose connection |
| CN104654587A (en) * | 2015-02-10 | 2015-05-27 | 奥特朗电器（广州）有限公司 | Pressure-bearing rotationally-molded liner for electric water heater and manufacturing method thereof |
| CN107166732A (en) * | 2017-06-02 | 2017-09-15 | 广东万和新电气股份有限公司 | One kind turnover water swivel and water heater |
-
1998
- 1998-11-26 JP JP33575098A patent/JP2000161778A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012511137A (en) * | 2008-12-08 | 2012-05-17 | ヘンリ ペテリ ベヘール ベスローテン フェンノートシャップ | Container with hose connection |
| CN104654587A (en) * | 2015-02-10 | 2015-05-27 | 奥特朗电器（广州）有限公司 | Pressure-bearing rotationally-molded liner for electric water heater and manufacturing method thereof |
| CN107166732A (en) * | 2017-06-02 | 2017-09-15 | 广东万和新电气股份有限公司 | One kind turnover water swivel and water heater |
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