JP2004093042A - Circulation device for pond water - Google Patents
Circulation device for pond water Download PDFInfo
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- JP2004093042A JP2004093042A JP2002256334A JP2002256334A JP2004093042A JP 2004093042 A JP2004093042 A JP 2004093042A JP 2002256334 A JP2002256334 A JP 2002256334A JP 2002256334 A JP2002256334 A JP 2002256334A JP 2004093042 A JP2004093042 A JP 2004093042A
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- Prior art keywords
- heat
- water
- pond
- pipeline
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
Description
【０００１】
【発明の属する技術分野】
この発明は、ため池、公園池、湖沼等に設置して原水に自然対流を起こさせる、太陽熱を利用した池水等の循環装置に関する。
【０００２】
【従来の技術】
ため池、公園池、湖沼等においては、水面と池底の水温差により水が常に流動しているが、冬季停滞期と夏季停滞期があり、表層部と池底部との池水の上下動がなくなる。特に、夏場には地底部に滞留した水は嫌気性となり腐敗をもたらす。従来、ため池等の原水の直接浄化、水質保全の技術は各種実施されており、水中撹拌や曝気撹拌により水流を循環させ、嫌気性を改善する装置はよく知られている。そして、地上に搬送可能なポンプ浄化機構を設け、吸込ポンプの吸込管と吐出ポンプの吐出管を湖沼等に開口した浄化装置も、例えば、実開平７−９４９７号公報に記載してあるように公知である。また、フロートを設けた噴水曝気装置と循環流を発生させる水中ミキサーを組合せ、池全体を循環流により曝気させる装置も、例えば、特公平４−３３５２０号公報に記載してあるように公知である。
【０００３】
【発明が解決しようとする課題】
従来の陸上設置の浄化装置は、装置本体を陸上に設置するため、用地費、ポンプ動力費、据付け工事費等が高くなり、大容量処理では不利となる。また、池等の水面に設置する浮体式接触酸化装置は、小規模な池水等の直接浄化として確実性、常用性があるが、池内に浮遊する夾雑物等による循環原水ポンプの詰りや夾雑物の除去等の保守管理が課題となる。池面積や池水水量が多くなると、設備費も高くなる。この発明は、動力費を使わずに、太陽熱を利用した安価な装置で、池底を加温して池水に対流を起させる池水等の循環装置を提供する。
【０００４】
【課題を解決するための手段】
この発明の要旨は、エンドレス状のパイプラインをため池等に設置して、水面上に太陽光の吸熱部と、池底に放熱部を形成すると共に、パイプラインに熱媒体を封入して、パイプラインの途中にラインポンプを介装したもので、太陽熱を蓄熱した熱媒体を池底に導いてパイプラインの放熱部で池底の水を加温して循環流動させ、池底の嫌気性を防止できる。パイプラインの吸熱部と放熱部の熱媒体を置換させる時間だけラインポンプを作動するもので、非常に安価なランニングコストで実現できる。具体的には、パイプラインが、吸熱管を格子状に配列した太陽光の吸熱部と、ドラフトチューブに放熱管をコイル状に周回させた太陽熱の放熱部とからなるもので、熱効率を高めることができる。そして、パイプラインは、水面上の吸熱部と池底の放熱部を熱伝導性の良い材質としたもので、温度上昇を一部分に集中させて、池水の対流を起させることができる。また、パイプラインの吸熱部と放熱部の容量をほぼ同等としたもので、水面上の熱せられた冷媒の全量を水中の放熱部に移送できる。なお、パイプラインを減圧状態とすれば、減圧により熱媒体の沸点が低下して、冬季においても凝縮水による加熱が行なえる。
【０００５】
【発明の実施の形態】
この発明に係る装置は上記のように構成してあり、池水等の水面を照射する太陽光によりパイプラインの吸熱部が加熱され、吸熱部の熱媒体に太陽熱を畜熱する。日没後あるいは所定時間ごとに、パイプラインの吸熱部と放熱部の熱媒体を置換させる時間だけラインポンプを作動して、加熱媒体の全量を水中の放熱部に移動させる。放熱部に移動した加熱媒体により熱交換が行われ、放熱部の近傍の池水か暖められる。加温された池底の水が上昇し、池水等の水を循環流動させる。特に、夜間には水面近くの水が冷やされて対流が発生する。これにより、非常に安価なランニングコストで水面近くの溶存酸素を多く含んだ水と池底の嫌気状態の水を置換して、池水の腐敗防止等の機能を発揮する。
【０００６】
【実施例】
この発明に係る池水等の循環装置について図１に基づき詳述すると、エンドレス状のパイプライン１がため池Ａに設置してあり、水面上に集合させた太陽光の吸熱部２と、池底に集合させた放熱部３を形成してある。パイプライン１には蓄熱性のよい水またはアンモニア等の熱媒体が封入してあり、熱媒体を移送させるラインポンプ４がパイプライン１の途中に介装してある。水面上に設置したパイプライン１の吸熱部２は格子状に吸熱管５が配列してあり、吸熱管５は熱伝導性の良いステンレス材としてある。なお、吸熱管５は黒く着色したゴム材として、太陽光を吸熱しやすくしてもよいものである。パイプライン１の放熱部３は、上下を解放した円筒状のドラフトチューブ６にコイル状に周回させた放熱管７が配設してある。放熱管７も熱伝導性の良いステンレス材としてある。
【０００７】
パイプライン１の吸熱部２と放熱部３の容量をほぼ同等としてあり、昼間太陽光で熱せられた吸熱部２の熱媒体を夕刻にあるいは所定時間ごとにラインポンプ４を作動して、水中の放熱部３に移動させる。放熱部３の放熱管７でドラフトチューブ１の内部の水を熱交換により加温して、暖められた水を上昇させて池水の対流を起させる。水面近くの溶存酸素を多く含んだ水を池底に送込み、池底の嫌気状態の水を水面近くに循環流動させて、微生物による好気性処理が行なわれる。この操作は、ラインポンプ４にて水面上と水中部を置換させる時間だけ運転するものであり、非常に安価なランニングコストで実現できる。なお、パイプライン１を減圧状態で密封すれば、減圧により熱媒体の沸点が低下して、太陽光の弱い冬季でも吸熱部２の熱媒体が蒸発し、蒸気となった熱媒体が放熱部３で凝縮水となり、加熱された池底の水が上昇して、池水の対流が生じるものである。
【０００８】
【発明の効果】
以上のように、この発明に係る池水等の循環装置は、動力費を使わずに、太陽熱を利用した安価な装置で、池底を加温して池水に対流を起させる池水等の循環装置となるものである。即ち、従来の水中撹拌や曝気撹拌により水流を循環させ、嫌気性を改善する装置は、用地費、据付け工事費、動力等の維持管理費を必要とするものであるが、この発明にあっては、水面上に集合させた太陽光の吸熱部と、池底に集合させた放熱部を形成したパイプラインに熱媒体を封入し、パイプラインの途中にラインポンプを介装したもので、太陽熱を蓄熱した熱媒体を池底に導いてパイプラインの放熱部で池底の水を加温して循環流動させ、池底が嫌気性となるのを防止できる。パイプラインの吸熱部と放熱部の熱媒体を置換させる時間だけラインポンプを作動するもので、非常に安価なランニングコストで実現できる。
【０００９】
パイプラインが、吸熱管を格子状に配列した太陽光の吸熱部と、ドラフトチューブに放熱管をコイル状に周回させた太陽熱の放熱部とからなるもので、熱効率を高めることができる。そして、パイプラインは、水面上の吸熱部と池底の放熱部を熱伝導性の良い材質としたもので、温度上昇を一部分に集中させて、池水の対流を起させることができる。また、パイプラインの吸熱部と放熱部の容量をほぼ同等としたもので、水面上の熱せられた冷媒の全量を水中の放熱部に移送できる。なお、パイプラインを減圧状態とすれば、減圧により熱媒体の沸点が低下して、冬季においても凝縮水による加熱が行なえる。このように、非常に安価なランニングコストで、水面近くの溶存酸素を多く含んだ水と池底の嫌気状態の水を循環、置換することができる。
【図面の簡単な説明】
【図１】この発明に係る池水等の循環装置のフローチャートである。
【符号の説明】
１ パイプライン
２ 吸熱部
３ 放熱部
４ ラインポンプ
５ 吸熱管
６ ドラフトチューブ
７ 放熱管
Ａ ため池[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a circulating device for pond water or the like using solar heat, which is installed in a reservoir, a park pond, a lake, or the like to cause natural convection in raw water.
[0002]
[Prior art]
In reservoirs, park ponds, lakes and marshes, water is constantly flowing due to the temperature difference between the water surface and the bottom of the pond. . In particular, in the summer, water that has accumulated at the bottom of the ground becomes anaerobic and causes decay. Conventionally, various techniques for directly purifying raw water in reservoirs and the like and for preserving water quality have been implemented, and apparatuses for improving the anaerobic property by circulating a water flow by stirring in water or aeration and stirring are well known. Further, a purifying apparatus provided with a pump purifying mechanism capable of being conveyed to the ground and opening the suction pipe of the suction pump and the discharge pipe of the discharge pump to a lake or the like is also disclosed in, for example, Japanese Utility Model Laid-Open No. 7-9497. It is known. Also, a device that combines a fountain aeration device provided with a float with an underwater mixer that generates a circulating flow and aerates the entire pond with a circulating flow is also known, for example, as described in Japanese Patent Publication No. 4-33520. .
[0003]
[Problems to be solved by the invention]
In the conventional on-land purification apparatus, since the main body of the apparatus is installed on land, land costs, pump power costs, installation work costs, and the like are high, which is disadvantageous in large-capacity processing. In addition, the floating contact oxidizer installed on the surface of a pond or the like has certainty and regular use as direct purification of small-scale pond water, but clogging of the circulating raw water pump due to impurities floating in the pond and other impurities Maintenance management, such as removal of waste, is an issue. When the pond area and pond water volume increase, the equipment cost also increases. The present invention provides an inexpensive apparatus utilizing solar heat without using a power cost, and a circulating apparatus for pond water or the like for heating a pond bottom and causing convection in the pond water.
[0004]
[Means for Solving the Problems]
The gist of the present invention is to install an endless pipeline in a reservoir or the like, form a heat absorbing portion for sunlight on the water surface, and a heat radiating portion on the bottom of the pond, enclose a heat medium in the pipeline, and form a pipe. A line pump is interposed in the middle of the line.The heat medium that stores solar heat is guided to the pond bottom, and the water in the pond bottom is heated and circulated and flowed by the radiating section of the pipeline to reduce the anaerobicity of the pond bottom. Can be prevented. The line pump is operated only for the time required to replace the heat medium in the heat absorbing portion and the heat radiating portion of the pipeline, and can be realized at a very low running cost. Specifically, the pipeline is made up of a solar heat absorbing portion in which heat absorbing tubes are arranged in a lattice shape, and a solar heat radiating portion in which a heat radiating tube is wrapped around a draft tube in a coil shape to improve thermal efficiency. Can be. In the pipeline, the heat absorbing portion on the water surface and the heat radiating portion on the bottom of the pond are made of a material having good thermal conductivity, and the convection of the pond water can be caused by concentrating the temperature rise on a part. Further, since the capacities of the heat absorbing portion and the heat radiating portion of the pipeline are substantially equal, the entire amount of the heated refrigerant on the water surface can be transferred to the heat radiating portion underwater. If the pipeline is set in a reduced pressure state, the boiling point of the heat medium decreases due to the reduced pressure, and heating with condensed water can be performed even in winter.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
The apparatus according to the present invention is configured as described above. The heat absorbing portion of the pipeline is heated by the sunlight irradiating the surface of the water such as pond water, and the heat medium of the heat absorbing portion heats the solar heat. After sunset or at predetermined time intervals, the line pump is operated for a time to replace the heat absorbing portion of the pipeline with the heat medium of the heat radiating portion, thereby moving the entire amount of the heating medium to the heat radiating portion in water. Heat exchange is performed by the heating medium moved to the heat radiating section, and the pond water near the heat radiating section is warmed. The heated water at the bottom of the pond rises and circulates and flows water such as pond water. Especially at night, water near the water surface is cooled and convection occurs. As a result, the water containing a large amount of dissolved oxygen near the water surface is replaced with the anaerobic water at the bottom of the pond at a very low running cost, thereby exhibiting functions such as prevention of decay of the pond water.
[0006]
【Example】
The circulating device for pond water and the like according to the present invention will be described in detail with reference to FIG. 1. An endless pipeline 1 is installed in a reservoir A, and a heat absorbing portion 2 for sunlight gathered on the water surface and a bottom of the pond. The heat dissipating portions 3 are formed as a group. A heat medium such as water or ammonia having good heat storage properties is sealed in the pipeline 1, and a line pump 4 for transferring the heat medium is interposed in the pipeline 1. The heat-absorbing section 2 of the pipeline 1 installed on the water surface has heat-absorbing tubes 5 arranged in a lattice, and the heat-absorbing tubes 5 are made of stainless steel having good heat conductivity. The heat absorbing tube 5 may be made of a rubber material colored black so as to easily absorb the sunlight. The heat radiating section 3 of the pipeline 1 is provided with a heat radiating pipe 7 that is wrapped in a coil shape around a cylindrical draft tube 6 that is open up and down. The radiator tube 7 is also made of a stainless material having good heat conductivity.
[0007]
The capacity of the heat absorbing section 2 and the heat radiating section 3 of the pipeline 1 is substantially equal, and the heat pump of the heat absorbing section 2 heated by daytime sunlight is operated in the evening or every predetermined time by operating the line pump 4 so that the water is absorbed in the water. It is moved to the radiator 3. The water inside the draft tube 1 is heated by heat exchange by the heat radiating pipe 7 of the heat radiating section 3 to raise the warmed water to cause convection of pond water. Aerobic treatment with microorganisms is performed by sending water containing a large amount of dissolved oxygen near the water surface to the bottom of the pond and circulating and flowing anaerobic water near the water surface near the bottom of the pond. This operation is performed only for the time required to replace the water surface with the underwater part by the line pump 4, and can be realized at a very low running cost. If the pipeline 1 is sealed in a decompressed state, the boiling point of the heat medium decreases due to the decompression, and even in winter when sunlight is weak, the heat medium in the heat absorbing unit 2 evaporates, and the heat medium that has become steam becomes the heat radiating unit 3. Then, condensed water is generated, and the heated water at the bottom of the pond rises, causing convection of the pond water.
[0008]
【The invention's effect】
As described above, the circulating device for pond water and the like according to the present invention is an inexpensive device using solar heat without using a power cost, and a circulating device for pond water or the like for heating the pond bottom and causing convection in the pond water. It is what becomes. That is, the conventional apparatus for circulating a water stream by underwater stirring or aeration stirring to improve anaerobic requires land costs, installation work costs, maintenance costs such as power, etc. A heat pump is sealed in a pipeline that has a heat absorbing part of sunlight gathered on the water surface and a heat radiating part gathered at the bottom of the pond, and a line pump is interposed in the middle of the pipeline. The heat medium storing the heat is guided to the bottom of the pond, and the water at the bottom of the pond is heated and circulated and flown by the heat radiating portion of the pipeline, whereby the pond bottom can be prevented from becoming anaerobic. The line pump is operated only for the time required to replace the heat medium in the heat absorbing portion and the heat radiating portion of the pipeline, and can be realized at a very low running cost.
[0009]
The pipeline is composed of a solar heat absorbing portion in which heat absorbing tubes are arranged in a lattice shape, and a solar heat radiating portion in which a heat radiating tube is wrapped around a draft tube in a coil shape, thereby improving thermal efficiency. In the pipeline, the heat absorbing portion on the water surface and the heat radiating portion on the bottom of the pond are made of a material having good thermal conductivity, and the convection of the pond water can be caused by concentrating the temperature rise on a part. Further, since the capacities of the heat absorbing portion and the heat radiating portion of the pipeline are substantially equal, the entire amount of the heated refrigerant on the water surface can be transferred to the heat radiating portion underwater. If the pipeline is set in a reduced pressure state, the boiling point of the heat medium decreases due to the reduced pressure, and heating with condensed water can be performed even in winter. In this manner, the water containing much dissolved oxygen near the water surface and the anaerobic water at the bottom of the pond can be circulated and replaced at very low running costs.
[Brief description of the drawings]
FIG. 1 is a flowchart of a circulating device for pond water or the like according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pipeline 2 Heat absorption part 3 Heat radiation part 4 Line pump 5 Heat absorption tube 6 Draft tube 7 Heat radiation tube A Reservoir
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002256334A JP2004093042A (en) | 2002-09-02 | 2002-09-02 | Circulation device for pond water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002256334A JP2004093042A (en) | 2002-09-02 | 2002-09-02 | Circulation device for pond water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004093042A true JP2004093042A (en) | 2004-03-25 |
| JP2004093042A5 JP2004093042A5 (en) | 2005-06-02 |
Family
ID=32061587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002256334A Pending JP2004093042A (en) | 2002-09-02 | 2002-09-02 | Circulation device for pond water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2004093042A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004249248A (en) * | 2003-02-21 | 2004-09-09 | Yokogawa Electric Corp | Water cleaning system |
| KR101030977B1 (en) | 2010-09-06 | 2011-04-28 | 주식회사 서영엔지니어링 | Plant community apparatus for water purification using solar heat |
| JP2011194354A (en) * | 2010-03-23 | 2011-10-06 | Satoru Takamori | Apparatus for improving quality of water in dam lake, river or lake |
| CN102432142A (en) * | 2011-12-13 | 2012-05-02 | 浙江省环境保护科学设计研究院 | Solar domestic sewage anaerobic treatment device and method |
| CN114249367A (en) * | 2021-12-18 | 2022-03-29 | 四川大学 | Solar-energy-based reinforced closed water body convection device and method |
-
2002
- 2002-09-02 JP JP2002256334A patent/JP2004093042A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004249248A (en) * | 2003-02-21 | 2004-09-09 | Yokogawa Electric Corp | Water cleaning system |
| JP4518235B2 (en) * | 2003-02-21 | 2010-08-04 | 横河電機株式会社 | Water purification system |
| JP2011194354A (en) * | 2010-03-23 | 2011-10-06 | Satoru Takamori | Apparatus for improving quality of water in dam lake, river or lake |
| KR101030977B1 (en) | 2010-09-06 | 2011-04-28 | 주식회사 서영엔지니어링 | Plant community apparatus for water purification using solar heat |
| CN102432142A (en) * | 2011-12-13 | 2012-05-02 | 浙江省环境保护科学设计研究院 | Solar domestic sewage anaerobic treatment device and method |
| CN102432142B (en) * | 2011-12-13 | 2013-07-31 | 浙江省环境保护科学设计研究院 | Solar domestic sewage anaerobic treatment device and method |
| CN114249367A (en) * | 2021-12-18 | 2022-03-29 | 四川大学 | Solar-energy-based reinforced closed water body convection device and method |
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