JPH0450500B2 - - Google Patents
Info
- Publication number
- JPH0450500B2 JPH0450500B2 JP59145145A JP14514584A JPH0450500B2 JP H0450500 B2 JPH0450500 B2 JP H0450500B2 JP 59145145 A JP59145145 A JP 59145145A JP 14514584 A JP14514584 A JP 14514584A JP H0450500 B2 JPH0450500 B2 JP H0450500B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- hot water
- heat storage
- storage tank
- temperature
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 238000005338 heat storage Methods 0.000 claims description 42
- 239000011232 storage material Substances 0.000 claims description 20
- 239000002775 capsule Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、蓄熱タンクの蓄熱制御方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heat storage control method for a heat storage tank.
従来、太陽熱利用温水器と貯湯タンクとを循環
経路で連通させ、加熱された温水を循環させつつ
貯湯タンクに溜め置き、必要に応じて温水を取り
出し、その分量の新規水の補給を行つて使用出来
るよう構成された温水装置において、貯湯槽内の
温水の温度低下を防止するため、潜熱蓄熱カプセ
ル（以下「PCMカプセル」と言う）あるいは岩
石などを貯湯槽内に配置し、日照中高温化された
温水温度を蓄熱し、夜間など加熱されない時間帯
に放熱させることが行なわれる。
Conventionally, a solar water heater and a hot water storage tank are connected through a circulation path, heated hot water is circulated and stored in the hot water storage tank, and hot water is taken out as needed and used by replenishing that amount of fresh water. In order to prevent the temperature of the hot water in the hot water tank from dropping, a latent heat storage capsule (hereinafter referred to as a "PCM capsule") or a rock, etc. is placed in the hot water tank in order to prevent the hot water from becoming hot during sunlight. The heated water temperature is stored and the heat is radiated during times when heating is not being performed, such as at night.
ところで、従来の蓄熱タンクにおいては第２図
に示すように、太陽熱利用温水器Ａにおける集熱
器A′の温湯出口温度T1と、蓄熱タンクＢの下部
水温T2とを比較し、この温度差が一定以上とな
つたときに、循環ポンプＰを作動させ、もつて蓄
熱制御を行なつていたが、蓄熱タンク内の温水容
積が、蓄熱材の占める容積分少なくされ、しか
も、蓄熱材の熱伝導率が悪いことが相剰し、温水
が充分に蓄熱材に熱を与えないまま蓄熱タンク下
部に至り、そこから再び集熱器A′へと循環され
やすく、このため早期のうちに温度T1と温度T2
の差が小さくなり、これを検出した制御装置によ
つてポンプＰが停止され、日照中充分な高温水が
得られるにもかかわらず早期のポンプ停止に起因
して蓄熱効率の向上が妨げられることがあるとい
つた問題があつた。
By the way , in a conventional heat storage tank, as shown in FIG. When the difference exceeds a certain level, the circulation pump P is activated to perform heat storage control, but the volume of hot water in the heat storage tank is reduced by the volume occupied by the heat storage material. Due to poor thermal conductivity, the hot water reaches the bottom of the heat storage tank without imparting sufficient heat to the heat storage material, and from there it is likely to be circulated back to the heat collector A′, which causes the temperature to drop at an early stage. T 1 and temperature T 2
The difference in temperature becomes small, and the control device that detects this stops the pump P, and even though sufficient high-temperature water can be obtained during sunshine, the pump stops early and the improvement in heat storage efficiency is hindered. There was a problem when there was a problem.
この発明は、上記問題点に鑑み、蓄熱タンク内
における蓄熱効率を向上させることを目的として
なされたものである。
In view of the above-mentioned problems, the present invention was made with the aim of improving heat storage efficiency within a heat storage tank.
即ち、この発明の蓄熱タンクの蓄熱制御方法
は、加熱装置と熱媒循環経路で連通された貯湯タ
ンク内に蓄熱材を投入し、加熱装置より送られる
熱媒の熱を蓄熱させるよう構成した蓄熱タンクに
おいて、貯湯タンク内の蓄熱材分布の中で最も低
熱となる蓄熱材分布位置に熱感知センサを内蔵し
た蓄熱カプセルを配置し、この熱感知センサによ
る情報と加熱装置の熱媒流出口の温度情報とを比
較し、該比較値により熱媒循環ポンプの稼働を制
御することを特徴とするものである。
That is, the heat storage control method for a heat storage tank of the present invention is a heat storage tank configured to put a heat storage material into a hot water storage tank that is connected to a heating device through a heat medium circulation path, and to store heat of a heat medium sent from the heating device. In the tank, a heat storage capsule with a built-in heat sensing sensor is placed at the location where the heat storage material has the lowest heat among the heat storage material distribution in the hot water storage tank, and information from this heat sensing sensor and the temperature of the heating medium outlet of the heating device are placed. This is characterized in that the comparison value is used to control the operation of the heat medium circulation pump.
太陽熱利用温水器と貯湯タンクとの間に温水が
循環されると熱は次第に蓄熱材に蓄えられていく
が既述のように蓄熱材の熱伝導率が悪いため充分
に熱交換がされないまま温水は貯湯タンクから循
環出口方向へ流れる傾向が強い。この貯湯タンク
の循環出口は通常貯湯タンクの下部に設けられる
から貯湯タンクの下部水温は比較的早期のうちに
上昇してしまう。
When hot water is circulated between the solar water heater and the hot water storage tank, the heat is gradually stored in the heat storage material, but as mentioned above, due to the poor thermal conductivity of the heat storage material, the hot water is not sufficiently exchanged. has a strong tendency to flow from the hot water storage tank toward the circulation outlet. Since the circulation outlet of this hot water storage tank is usually provided at the bottom of the hot water storage tank, the water temperature at the bottom of the hot water storage tank rises relatively quickly.
しかし、循環ポンプは蓄熱材内に内蔵された温
度感知センサによる温度情報によつて制御される
ため、循環する熱媒温度にかかわりなく蓄熱カプ
セル内の温度のみによつて制御され、従つて、蓄
熱材中の温度が充分に昇温されるまで、循環ポン
プによる温水循環が継続されるのである。 However, since the circulation pump is controlled by temperature information from a temperature sensor built into the heat storage material, it is controlled only by the temperature inside the heat storage capsule, regardless of the temperature of the circulating heat medium. The circulating pump continues to circulate hot water until the temperature inside the material has risen sufficiently.
これによつて熱が無駄に放射されることなく有
効に蓄えられることとなるのである。 This allows heat to be effectively stored without being wasted.
次にこの発明の実施例を説明する。 Next, embodiments of this invention will be described.
第１図はこの発明の実施例の断面図である。 FIG. 1 is a sectional view of an embodiment of the invention.
貯湯タンク１内にPCMカプセル、あるいは熱
容量の大きい岩石等蓄熱材２…２を投入し、加熱
装置（図示例は太陽熱利用温水器）５との間を循
環させて熱媒Ｈの熱を蓄熱させるよう構成した蓄
熱タンクにおいて、貯湯タンク１内の蓄熱材２…
２の分布の中で、最も低熱となる蓄熱材部位Ｓ
に、熱感知センサ３を内蔵した蓄熱カプセル２０
（第３図）を配置し、貯湯タンク１内を循環する
熱媒温度でなく、この熱感知センサ３による情報
と加熱装置５の熱媒流出口５Ａの温度情報とを比
較し、この比較蓄熱材により熱媒循環ポンプ６の
稼働を制御するのである。なお、図中７は制御装
置を、また８は新規水の供給管、９は温水取出口
を示す。 A heat storage material 2...2, such as a PCM capsule or a rock with a large heat capacity, is put into the hot water storage tank 1, and is circulated between it and a heating device (the example shown is a solar water heater) 5 to store the heat of the heat medium H. In the heat storage tank configured as such, the heat storage material 2 in the hot water storage tank 1...
In the distribution of 2, the heat storage material part S that has the lowest heat
, a heat storage capsule 20 with a built-in heat detection sensor 3
(Fig. 3), and compares not the temperature of the heat medium circulating in the hot water storage tank 1, but the information from this heat sensing sensor 3 and the temperature information of the heat medium outlet 5A of the heating device 5, and compares the temperature information of the heat medium outlet 5A of the heating device 5. The operation of the heat medium circulation pump 6 is controlled by the material. In the figure, 7 indicates a control device, 8 indicates a new water supply pipe, and 9 indicates a hot water outlet.
（実施例 １）
第１図に示したように上部に熱媒循環経路の流
入口、下部に同流出口を有する容積１m3の円筒型
貯湯タンク１のPCMカプセル２…２分布の中で
最も低熱となる位置としてその内部の最下層Ｓ
に、第３図に示すようにカプセル２内に蓄熱剤２
Ａ及び温度感知センサ３を内蔵したPCMカプセ
ル２０を１個配置した後、通常のPCMカプセル
２…２を投入し、温水取出口９を閉鎖して新規水
の供給管８から水を供給して満水させた後閉鎖
し、次いで太陽熱利用温水器５よりの温水を流入
させる温水供給管５Ｂを貯湯タンク１上部に連通
すると共に、貯湯タンク１下部より循環ポンプ６
を介して太陽熱利用温水器５へ熱媒を戻す循環管
路５Ｃを形成し、PCMカプセル２０より出力さ
れる温度情報と太陽熱利用温水器５の温水出口５
Ａに設けた温度センサの温度情報とにより制御装
置７を介して循環ポンプ６を制御し太陽熱利用温
水器よりの温水の循環制御を行つた。(Example 1) As shown in Fig. 1, the PCM capsule 2 of the cylindrical hot water storage tank 1 with a volume of 1 m3 , which has the inlet for the heat medium circulation path at the upper part and the outlet at the lower part, is the highest among the two distributions. The lowest layer S inside is the location where the temperature is low.
Then, as shown in Fig. 3, a heat storage agent 2 is placed inside the capsule 2.
After arranging one PCM capsule 20 containing A and the temperature sensor 3, a normal PCM capsule 2...2 is put in, the hot water outlet 9 is closed, and water is supplied from the new water supply pipe 8. A hot water supply pipe 5B, which is closed after being filled with water and then allows hot water from the solar water heater 5 to flow in, is connected to the upper part of the hot water storage tank 1, and a circulation pump 6 is connected from the lower part of the hot water storage tank 1.
A circulation pipe 5C is formed to return the heating medium to the solar water heater 5 via the temperature information outputted from the PCM capsule 20 and the hot water outlet 5 of the solar water heater 5.
The circulation pump 6 was controlled via the control device 7 based on the temperature information from the temperature sensor provided at A, and the circulation of hot water from the solar water heater was controlled.
上記制御は、太陽熱利用温水器５の温水出口５
Ａ側がPCMカプセル２０の温度より高ければ循
環ポンプが作動するように設定した。 The above control is performed by the hot water outlet 5 of the solar water heater 5.
The circulation pump was set to operate if the temperature on the A side was higher than the temperature of the PCM capsule 20.
（実施例 ２）
実施例１で使用した温度感知センサを内蔵した
PCMカプセル２０の他は蓄熱材として、岩石を
用い、実施例１と同様にして太陽熱利用温水器よ
りの温水を循環制御させた。(Example 2) A device with a built-in temperature sensor used in Example 1
Other than the PCM capsule 20, rocks were used as heat storage materials, and hot water from a solar water heater was circulated and controlled in the same manner as in Example 1.
実施例１および２において初期水温26℃、日射
量2000Kcal／m2day下で温水の循環制御をし、日
没直後の温度を測定したところ、日没前の日照量
減少によりタンク内部水温が30℃であつたにもか
かわらず、PCMカプセル２０よりの検出温度は
38℃まで上昇していた。 In Examples 1 and 2, the circulation of hot water was controlled at an initial water temperature of 26°C and a solar radiation of 2000 Kcal/m 2 day, and the temperature was measured immediately after sunset. It was found that the water temperature inside the tank decreased to 30°C due to the decrease in the amount of sunlight before sunset. ℃, the temperature detected from PCM capsule 20 was
The temperature had risen to 38℃.
これに対し、従来の水温のみに基づく制御のも
のについて、同様に貯湯実験を行なつたところ、
PCM内の温度、水温共に26℃となつており、本
発明の方法が蓄熱効果に優れることが判明した。 On the other hand, when we conducted a similar hot water storage experiment using conventional control based only on water temperature, we found that
Both the temperature inside the PCM and the water temperature were 26°C, indicating that the method of the present invention has an excellent heat storage effect.
この発明は以上説明したように、貯湯タンクへ
の熱媒循環の制御を、熱媒温度ではなく、蓄熱の
行なわれる蓄熱材中の温度を基準にして行なうた
め蓄熱量が充分に大きくなるまで、熱媒の循環が
継続され、効率の良い温度補償が実現されるので
ある。
As explained above, this invention controls the circulation of the heat medium to the hot water storage tank based on the temperature in the heat storage material where heat is stored, not the heat medium temperature. The circulation of the heat medium continues, and efficient temperature compensation is achieved.
第１図はこの発明の説明図、第２図は従来例の
説明図、第３図は熱感知センサを内蔵した蓄熱材
の断面図である。
１……貯湯タンク、２……蓄熱材、３……温度
感知センサ、５……加熱装置（太陽熱利用温水
器）、６……熱媒循環ポンプ、Ｓ……最も低熱と
なる蓄熱材部位。
FIG. 1 is an explanatory diagram of the present invention, FIG. 2 is an explanatory diagram of a conventional example, and FIG. 3 is a sectional view of a heat storage material incorporating a heat sensing sensor. 1...Hot water storage tank, 2...Heat storage material, 3...Temperature sensing sensor, 5...Heating device (solar water heater), 6...Heat medium circulation pump, S...Heat storage material portion that generates the lowest heat.
Claims (1)
ンク内に蓄熱材を投入し、加熱装置より送られる
熱媒の熱を蓄熱させるよう構成した蓄熱タンクに
おいて、貯湯タンク内の蓄熱材分布の中で最も低
熱となる蓄熱材分布位置に熱感知センサを内蔵し
た蓄熱カプセルを配置し、この熱感知センサによ
る情報と加熱装置の熱媒流出口の温度情報とを比
較し、該比較値により熱媒循環ポンプの稼働を制
御することを特徴とする蓄熱タンクの蓄熱制御方
法。1 In a heat storage tank configured to store heat of the heat medium sent from the heating device by putting a heat storage material in the hot water storage tank that is connected to the heating device through a heat medium circulation path, the distribution of the heat storage material in the hot water storage tank A heat storage capsule with a built-in heat sensing sensor is placed at the heat storage material distribution position where the lowest heat occurs, and the information from this heat sensing sensor is compared with the temperature information at the heating medium outlet of the heating device. A heat storage control method for a heat storage tank, the method comprising controlling the operation of a circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14514584A JPS6124944A (en) | 1984-07-11 | 1984-07-11 | Control of heat accumulation in heat accumulating tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14514584A JPS6124944A (en) | 1984-07-11 | 1984-07-11 | Control of heat accumulation in heat accumulating tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6124944A JPS6124944A (en) | 1986-02-03 |
| JPH0450500B2 true JPH0450500B2 (en) | 1992-08-14 |
Family
ID=15378455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14514584A Granted JPS6124944A (en) | 1984-07-11 | 1984-07-11 | Control of heat accumulation in heat accumulating tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6124944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2909320B2 (en) * | 1992-09-14 | 1999-06-23 | 岐阜工業株式会社 | Form cleaning tool and concrete formwork keren device using the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02275255A (en) * | 1989-04-14 | 1990-11-09 | Tsuneo Hojo | Accumulated heat utilizing device of solar light converted thermal energy |
| GB2467800A (en) * | 2009-02-17 | 2010-08-18 | Andrew Hill | System in which the temperature of a heat supplier and a heat consumer are compared |
-
1984
- 1984-07-11 JP JP14514584A patent/JPS6124944A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2909320B2 (en) * | 1992-09-14 | 1999-06-23 | 岐阜工業株式会社 | Form cleaning tool and concrete formwork keren device using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6124944A (en) | 1986-02-03 |
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