JP2004361073A - Hot water storage tank, and hot water supply device - Google Patents

Hot water storage tank, and hot water supply device Download PDF

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JP2004361073A
JP2004361073A JP2004109386A JP2004109386A JP2004361073A JP 2004361073 A JP2004361073 A JP 2004361073A JP 2004109386 A JP2004109386 A JP 2004109386A JP 2004109386 A JP2004109386 A JP 2004109386A JP 2004361073 A JP2004361073 A JP 2004361073A
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hot water
tank
water
water supply
storage tank
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JP4132054B2 (en
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Kazunori Oniki
和則 鬼木
Daisuke Imada
大輔 今田
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Showa Corp
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Showa Seisakusho Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water storage tank capable of reducing component costs, installable in a narrow installation space, and a hot water supply device provided with the hot water storage tank. <P>SOLUTION: In a position of a ceiling part 10b neighborhood in a body 10a of the hot water storage tank 1, first and second penetration pipes 25 and 26 having a smaller bore than a bore of a first upper side stream lining unit 11 and penetrating the hot water storage tank are arranged in a circumferential direction, and tip portions of the first and second penetration pipes 25 and 26 respectively penetrate a circumferential face in a bottom neighborhood of the first upper side stream lining unit 11. On the other hand, in a position of a bottom part 10c neighborhood in the body 10a of the hot water storage tank 1, third and fourth penetration pipes 23 and 24 having a smaller bore than a first lower side stream lining unit 12 and penetrating the hot water storage tank 1 are arrange in the circumferential direction, and tip portions of the third and fourth penetration pipes 23 and 24 respectively penetrate a circumferential face in a bottom neighborhood of the first lower side stream lining unit 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、湯を貯える貯湯槽、及び該貯湯槽を備える給湯装置に関する。   The present invention relates to a hot water storage tank for storing hot water and a hot water supply device provided with the hot water storage tank.

給水管によって貯湯槽内に水を充填する一方、この貯湯槽と加熱器との間に介装した循環路によって貯湯槽内の水を加熱器との間で循環しつつ、加熱器の加熱によって昇温させた湯水を貯湯槽に貯え、この湯水を、貯湯槽に連結してある給湯管から給湯する給湯装置が開発されている(例えば、特許文献1)。   While the water is filled in the hot water tank by the water supply pipe, while the water in the hot water tank is circulated between the hot water tank and the heater by a circulation path interposed between the hot water tank and the heater, the water is heated by the heater. There has been developed a hot water supply device that stores heated water in a hot water tank and supplies the hot water from a hot water supply pipe connected to the hot water tank (for example, Patent Document 1).

図10は従来の給湯装置の構成を示す模式図であり、図中、100は湯水を貯える貯湯槽である。この貯湯槽100の内部構造については後述する。貯湯槽100は、円筒状の本体110aの上下端を部分球形状の天井部110b及び底部110cで封止してなる槽本体110を備えてなり、槽本体110の底部110cには複数の脚部が設けてある。本体110aの底部110c近傍の位置には、水道水等の原水を供給する給水管150が連結してあり、該給水管150から貯湯槽100内に原水が加圧供給される。これによって、貯湯槽100内が加圧状態に維持されている。   FIG. 10 is a schematic diagram showing the configuration of a conventional hot water supply apparatus, in which 100 is a hot water storage tank for storing hot water. The internal structure of the hot water storage tank 100 will be described later. The hot water storage tank 100 includes a tank main body 110 in which the upper and lower ends of a cylindrical main body 110a are sealed with a partially spherical ceiling 110b and a bottom 110c, and the bottom 110c of the tank main body 110 has a plurality of legs. Is provided. A water supply pipe 150 for supplying raw water such as tap water is connected to a position near the bottom 110c of the main body 110a, and the raw water is pressurized and supplied into the hot water storage tank 100 from the water supply pipe 150. Thus, the inside of the hot water storage tank 100 is maintained in a pressurized state.

また、貯湯槽100には、貯湯槽100内の貯蔵水を昇温すべく取水する取水管153の一端が、前述した給水管150の連結位置とは周方向へ位置を異ならせて取り付けてあり、該取水管153の他端は、水を加熱する加熱器140の入水口に連結してある。この取水管153の中途位置には、貯湯槽100内の貯蔵水を加熱器140へ給送するポンプ141が介装してある。前述した加熱器140には、加熱昇温した湯水を出水する出水口が設けてあり、該出水口には、前記貯湯槽100へ湯水を注入する注湯管154の一端が連結してある。そして、注湯管154の他端は、貯湯槽100の本体110aであって天井部110b近傍の位置に連結してある。   In addition, one end of an intake pipe 153 that takes in water to raise the temperature of the stored water in the hot water tank 100 is attached to the hot water tank 100 at a position different from the connection position of the water supply pipe 150 in the circumferential direction. The other end of the water intake pipe 153 is connected to a water inlet of a heater 140 for heating water. A pump 141 for feeding stored water in the hot water storage tank 100 to the heater 140 is provided at an intermediate position of the intake pipe 153. The above-described heater 140 is provided with a water outlet for discharging heated and heated hot water, and one end of a pouring pipe 154 for injecting hot water into the hot water storage tank 100 is connected to the water outlet. The other end of the pouring pipe 154 is connected to the main body 110a of the hot water storage tank 100 and to a position near the ceiling 110b.

一方、貯湯槽100の天井部110b中央には、該貯湯槽100内に貯えられた湯水を使用場所へ供給する給湯管151が連結してあり、貯湯槽100内の湯水は内部圧力によって給湯管151内へ吐出される。この給湯管151には、蛇口・シャワーヘッド等に連通する複数の枝管が連結してあり、給湯管151内を通流する湯水は各枝管へ供給される。蛇口・シャワーヘッド等が連結する各連結管には前述した給水管150に連通する枝管も接続してあり、各連結管内で湯水と原水とを混合することによって、所要の温度の湯水を使用し得るようにしてある。   On the other hand, a hot water supply pipe 151 for supplying hot water stored in the hot water storage tank 100 to a place of use is connected to the center of the ceiling 110b of the hot water storage tank 100, and the hot water in the hot water storage tank 100 is heated by the internal pressure. 151 is discharged. A plurality of branch pipes communicating with a faucet, a shower head, and the like are connected to the hot water supply pipe 151, and hot water flowing through the hot water supply pipe 151 is supplied to each branch pipe. A branch pipe communicating with the above-described water supply pipe 150 is also connected to each connecting pipe to which the faucet, shower head, etc. are connected, and hot water of a required temperature is used by mixing hot water and raw water in each connecting pipe. I can do it.

前記給湯管151は、貯湯槽100の本体110aの略中央位置に連結した返湯管152に連通しており、給湯管151内を通流する湯水は返湯管152によって貯湯槽100へ還流される。このように、貯湯槽100内の湯水が給湯管151及び返湯管152によって循環されているため、前述した枝管へ所定温度の湯水を供給することができる。   The hot water supply pipe 151 communicates with a hot water return pipe 152 connected to a substantially central position of the main body 110a of the hot water storage tank 100, and hot water flowing through the hot water supply pipe 151 is returned to the hot water storage tank 100 by the hot water return pipe 152. You. As described above, since the hot water in the hot water storage tank 100 is circulated by the hot water supply pipe 151 and the hot water return pipe 152, hot water at a predetermined temperature can be supplied to the branch pipe described above.

図11は図10に示した貯湯槽100の縦断面図である。なお、図中、図10に示した部分に対応する部分には、同じ番号を付してその説明を省略する。図11に示した如く、貯湯槽100の本体110aであって底部110c近傍の位置には、槽内に連通し、図10に示した加熱器140へ取水するための端寸筒状の取水口104が突設してあり、加熱器140によって加熱・昇温された湯は、貯湯槽100の本体110aであって天井部110b近傍の位置に突設した筒状の注湯口105から貯湯槽100内に注入される。   FIG. 11 is a longitudinal sectional view of the hot water storage tank 100 shown in FIG. In the figure, portions corresponding to the portions shown in FIG. 10 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 11, an end-shaped cylindrical water intake port communicating with the inside of the main body 110a of the hot water storage tank 100 and near the bottom 110c for taking water to the heater 140 shown in FIG. The hot water heated and heated by the heater 140 is supplied to the hot water tank 100 from a cylindrical pouring port 105 protruding at a position near the ceiling 110b of the main body 110a of the hot water tank 100. Injected into.

一方、貯湯槽100の本体110aであって前記取水口104と略同じ位置には、原水を供給する給水口103が取水口104と対向配置してあり、該給水口103から貯湯槽100内に原水が圧入される。また、貯湯槽100の天井部110bの略中央位置には、槽内に連通する端寸筒状の給湯口102が突設してあり、給湯口102から図10に示した給湯管151へ湯水が吐出されるようになっている。そして、給湯管151及び返湯管152を循環した湯水は、貯湯槽100の本体110aであって前記給水口103より少し上方の位置に設けた返湯口106から貯湯槽100内へ還流するようになっている。   On the other hand, in the main body 110a of the hot water tank 100, at approximately the same position as the water intake port 104, a water supply port 103 for supplying raw water is disposed opposite to the water intake port 104, and from the water supply port 103 into the hot water storage tank 100. Raw water is injected. At approximately the center of the ceiling 110b of the hot water storage tank 100, an end-sized tubular hot water supply port 102 communicating with the inside of the hot water storage tank 100 protrudes, and the hot water supply port 102 supplies hot water to the hot water supply pipe 151 shown in FIG. Is discharged. The hot water circulated through the hot water supply pipe 151 and the hot water return pipe 152 is returned to the hot water storage tank 100 from the hot water supply port 106 provided at a position slightly above the water supply port 103 on the main body 110a of the hot water storage tank 100. Has become.

また、貯湯槽100の本体110aの略中央には、貯湯槽100内の貯蔵水の温度が所定温度以下になったとき図10に示したポンプ141を駆動させるサーモスタット142の検温器143が本体110aの壁面を貫通する態様で取り付けてある。
特開2000−179941号公報(図1)
Also, at the approximate center of the main body 110a of the hot water tank 100, a temperature detector 143 of a thermostat 142 for driving the pump 141 shown in FIG. 10 when the temperature of the stored water in the hot water tank 100 becomes lower than a predetermined temperature is provided. Is mounted so as to penetrate through the wall surface of the.
JP 2000-179941 A (FIG. 1)

しかし、このような給湯装置では、湯水の使用状態に応じて、貯湯槽内の湯水を一時的に、加熱器の加熱能力を超えて給湯することがあるが、かかる場合、従来の給湯装置にあっては、次のような問題があった。   However, in such a hot water supply device, depending on the use condition of the hot water, the hot water in the hot water storage tank may be temporarily heated to exceed the heating capacity of the heater. Then, there were the following problems.

図12は、従来の貯湯槽内の湯水を、加熱器の加熱能力を超えて給湯した場合の貯湯槽内の貯蔵水の温度変化を模式的に示す図面である。なお、図中、図11に示した部分に対応する部分には同じ番号を付してその説明を省略する。   FIG. 12 is a drawing schematically showing a temperature change of stored water in a hot water storage tank when hot water in a conventional hot water storage tank is supplied with water exceeding the heating capacity of a heater. In the figure, portions corresponding to the portions shown in FIG. 11 are denoted by the same reference numerals, and description thereof will be omitted.

図12(a)に示した如く、給湯口102から、加熱器の加熱能力以内で給湯している場合、貯湯槽100の上位位置に配設してある注湯口105から、加熱器によって加熱・昇温された後の湯水が注入されており、サーモスタットの検温器143を設けた位置より上方の上層は、略65℃〜75℃の高湯水温領域Rhになっている。給湯口102から供給された湯水は循環中の放熱により温度が低下し、貯湯槽100の検温器143と給水口103との間の位置に配設してある返湯口106から槽内へ還流されており、検温器143を設けた位置より下方の中層は、略45℃〜65℃の帯状の中湯水温領域Rmになっている。一方、貯湯槽100の下位位置に配設してある給水口103から、給湯量に応じた量の原水が給水され、貯湯槽100の下層は、返湯口106から還流された返湯と原水との混合によって25℃〜45℃の帯状の低湯水温領域Rlになっている。そして、貯湯槽100の最下層は、25℃未満の水温領域Rwになっている。   As shown in FIG. 12A, when hot water is supplied from the hot water supply port 102 within the heating capacity of the heater, the hot water is supplied from the hot water supply port 105 provided at the upper position of the hot water storage tank 100 by the heater. The hot water after the temperature is raised is injected, and the upper layer above the position where the thermostat 143 is provided is a high hot water temperature region Rh of approximately 65 ° C. to 75 ° C. The temperature of the hot water supplied from the hot water supply port 102 decreases due to heat radiation during circulation, and the hot water is returned to the inside of the hot water storage tank 100 from the hot water return port 106 disposed between the temperature detector 143 and the water supply port 103. The middle layer below the position where the temperature detector 143 is provided is a belt-like middle bath water temperature region Rm of approximately 45 ° C to 65 ° C. On the other hand, raw water of an amount corresponding to the amount of hot water is supplied from a water supply port 103 disposed at a lower position of the hot water tank 100, and the lower layer of the hot water tank 100 is supplied with hot water and raw water refluxed from the hot water supply port 106. , A belt-like low hot water temperature range Rl of 25 ° C to 45 ° C is obtained. The lowermost layer of the hot water storage tank 100 is in a water temperature region Rw of less than 25 ° C.

しかし、給湯口102から、加熱器の加熱能力を超えた給湯が開始されると、図12(b)に示した如く、貯湯槽100から吐出される給湯量に応じた量の原水が給水口103から貯湯槽100内に供給される一方、加熱器によって加熱・昇温された湯が注湯口105から槽内へ流入される量は、槽外へ流出する給湯量より少ないため、高湯水温領域Rhが減少し始めると共に、中湯水温領域Rm及び低湯水温領域Rlが拡大する。   However, when hot water supply exceeding the heating capacity of the heater is started from the hot water supply port 102, as shown in FIG. 12B, raw water of an amount corresponding to the hot water supply amount discharged from the hot water storage tank 100 is supplied to the water supply port. While the amount of hot water heated and heated by the heater from the heater 103 into the hot water storage tank 103 flows into the hot water tank 105 from the pouring port 105, it is smaller than the amount of hot water flowing out of the hot water tank. As Rh begins to decrease, the middle hot water temperature region Rm and the low hot water temperature region Rl expand.

加熱器の加熱能力を超えた給湯が続くと、図12(c)に示した如く、高湯水温領域Rhが消失した後、中湯水温領域Rmが減少し始める一方、低湯水温領域Rlが更に拡大する。そして、ついには、図12(d)(e)に示した如く、中湯水温領域Rmも消失して、低湯水温領域Rl及び水温領域Rwのみとなる。   If the hot water supply exceeding the heating capacity of the heater continues, as shown in FIG. 12C, after the high hot water temperature region Rh disappears, the middle hot water temperature region Rm starts to decrease, while the low hot water temperature region Rl further increases. Expanding. Finally, as shown in FIGS. 12D and 12E, the middle hot water temperature region Rm also disappears, leaving only the low hot water temperature region R1 and the water temperature region Rw.

一般に、シャワー等でお湯として有効な湯温は、略45℃〜65℃の中湯温以上の湯温であるので、上述した図12(d)(e)のような状態では、かかる有効温度の湯水を供給することができない。従って、このような状態が発生することを回避しなければならないが、上述した如き従来の給湯装置にあっては、容量が大きい貯湯槽100を設置しなければならないため、貯湯槽100に要する部品コストが高く、また、広い設置スペースを要するという問題があった。   In general, the effective hot water temperature as a hot water in a shower or the like is approximately equal to or higher than the middle hot water temperature of about 45 ° C. to 65 ° C. Therefore, in the state shown in FIGS. Can not supply hot water. Therefore, it is necessary to avoid occurrence of such a state. However, in the conventional hot water supply apparatus as described above, since the hot water tank 100 having a large capacity must be installed, parts required for the hot water tank 100 are required. There are problems that the cost is high and a large installation space is required.

本発明は斯かる事情に鑑みてなされたものであって、その目的とするところは、部品コストを低減し得ると共に、より狭い設置スペースに設置することができる貯湯槽、及び該貯湯槽を備える給湯装置を提供することにある。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a hot water tank that can reduce component costs and can be installed in a narrower installation space, and includes the hot water tank. A hot water supply device is provided.

請求項1記載の本発明は、湯水を貯える殻状の槽本体に、槽本体の内外を連通する複数の連通口が設けてある貯湯槽において、前記槽本体の天井側に、1又は複数の第1連通口が配設してあり、前記槽本体の底部側に、1又は複数の第2連通口が配設してあり、前記槽本体内の天井又はその近傍に、前記第1連通口から注入される湯を、減速させつつ槽本体の天井へ導く上側整流部材が配置してあり、前記槽本体内の底部又はその近傍に、前記第2連通口から供給される原水を、減速させつつ槽本体の底部へ導く下側整流部材が配置してあることを特徴とする。   The present invention according to claim 1 is a hot water storage tank in which a plurality of communication ports communicating between the inside and outside of the tank body are provided in a shell-shaped tank body for storing hot and cold water, wherein one or a plurality of A first communication port is provided, and one or more second communication ports are provided on the bottom side of the tank body, and the first communication port is provided on a ceiling in the tank body or in the vicinity thereof. An upper rectifying member that guides the hot water injected from the tank to the ceiling of the tank body while decelerating is disposed, and at or near the bottom in the tank body, the raw water supplied from the second communication port is decelerated. It is characterized in that a lower rectifying member for guiding to the bottom of the tank main body is arranged.

請求項2記載の本発明は、前記上側整流部材内の流路の断面面積は、前記第1連通口から注入される湯の流路の断面面積より大きく、前記下側整流部材内の流路の断面面積は、前記第2連通路から供給される原水の流路の断面面積より大きいことを特徴とする。   The cross-sectional area of the flow path in the upper rectifying member is larger than the cross-sectional area of the flow path of the hot water injected from the first communication port, and the flow path in the lower rectifying member Is larger than the cross-sectional area of the flow path of the raw water supplied from the second communication path.

請求項3記載の本発明は、湯水を貯える殻状の槽本体に、外部へ湯水を供給する給湯口、内部へ湯を注入する注湯口、内部へ原水を供給する給水口、及び内部から取水する取水口が設けてある貯湯槽において、前記給湯口は槽本体の天井に配設してあり、前記注湯口は槽本体の天井側に配設してあり、前記給水口及び取水口は槽本体の底部側に配設してあり、前記槽本体内の天井又はその近傍に、前記注湯口から注入される湯を、減速させつつ槽本体の天井へ導く上側整流部材が配置してあり、前記槽本体内の底部又はその近傍に、給水口から供給される原水を、減速させつつ槽本体の底部へ導く下側整流部材が配置してあることを特徴とする。   According to a third aspect of the present invention, there is provided a shell-shaped tank body for storing hot water, a hot water supply port for supplying hot water to the outside, a hot water supply port for pouring hot water into the inside, a water supply port for supplying raw water to the inside, and water intake from the inside. In the hot water storage tank provided with a water inlet, the water supply port is provided on the ceiling of the tank body, the water supply port is provided on the ceiling side of the tank body, and the water supply port and the water intake port are provided in the tank. It is disposed on the bottom side of the main body, and at or near the ceiling in the tank main body, an upper rectifying member that guides the hot water injected from the pouring port to the ceiling of the tank main body while decelerating is disposed, A lower rectifying member that guides raw water supplied from a water supply port to the bottom of the tank body while decelerating the raw water supplied from the water supply port is provided at or near the bottom of the tank body.

請求項4記載の本発明は、前記上側整流部材内の流路の断面面積は、前記注湯口の断面面積より大きく、前記下側整流部材内の流路の断面面積は、前記給水口の断面面積より大きいことを特徴とする。   The cross-sectional area of the flow path in the upper rectification member is larger than the cross-sectional area of the pouring port, and the cross-sectional area of the flow path in the lower rectification member is a cross-section of the water supply port. It is characterized by being larger than the area.

請求項5記載の本発明は、前記注湯口から注入される湯は、上側整流部材の内面に衝突して進行方向が天井へ変更されるようにしてあり、給水口から供給される原水は、下側整流部材の内面に衝突して進行方向が底部へ変更されるようにしてあることを特徴とする。   In the present invention according to claim 5, the hot water injected from the pouring port collides with the inner surface of the upper rectifying member so that the traveling direction is changed to the ceiling, and the raw water supplied from the water supply port is The traveling direction is changed to the bottom by colliding with the inner surface of the lower rectifying member.

請求項6記載の本発明は、前記取水口は下側整流部材の流路中から取水するようにしてあることを特徴とする。   The present invention described in claim 6 is characterized in that the water intake port is adapted to take water from inside the flow path of the lower rectifying member.

請求項7記載の本発明は、前記槽本体には、前記給湯口から外部へ供給した湯水を内部へ返送するための返湯口が、前記上側整流部材内へ返湯するように設けてあることを特徴とする。   In the present invention according to claim 7, the bath main body is provided with a hot water return port for returning hot water supplied from the hot water supply port to the outside to return to the inside of the upper rectifying member. It is characterized.

請求項8記載の本発明は、湯水を貯える竪型殻状の槽本体に、外部へ湯水を供給する給湯口、内部へ湯を注入する注湯口、内部へ原水を供給する給水口、内部から取水する取水口、及び前記給湯口から外部へ供給した湯水を内部へ返送するための返湯口が設けてある貯湯槽において、前記給湯口は槽本体の天井に配設してあり、前記注湯口及び返湯口は槽本体の天井側に配設してあり、前記給水口及び取水口は槽本体の底部側に配設してあり、前記注湯口に連通した第1管部材及び前記返湯口に連通した第2管部材が、槽本体内に延設してあり、両管部材の内径より大きい内径の有底筒状をなし、槽本体内の天井近傍に、その開口を前記天井に臨ませて配置した第1上側整流器内に、第1管部材の先端部及び第2管部材の先端部がそれぞれ挿入させてあり、また、前記給水口に連通した第3管部材及び前記取水口に連通した第4管部材が、槽本体内に延設してあり、両管部材の内径より大きい内径の有底筒状をなし、槽本体内の底部近傍に、その開口を前記底部に臨ませて配置した第1下側整流器内に、第3管部材の先端部及び第4管部材の先端部がそれぞれ挿入させてあることを特徴とする。   The present invention according to claim 8 provides a vertical shell-shaped tank body for storing hot water, a hot water supply port for supplying hot water to the outside, a hot water supply port for injecting hot water into the inside, a water supply port for supplying raw water to the inside, In a hot water storage tank provided with a water intake for taking water and a hot water supply port for returning hot water supplied from the hot water supply port to the outside, the hot water supply port is provided on a ceiling of the tank main body, and the hot water supply port is provided. And the hot water outlet is disposed on the ceiling side of the tank body, the water supply port and the water intake port are disposed on the bottom side of the water tank body, and the first pipe member and the hot water return port communicating with the pouring port are provided. A communicating second pipe member extends in the tank body, has a bottomed cylindrical shape having an inner diameter larger than the inner diameter of both pipe members, and has an opening facing the ceiling near the ceiling in the tank body. The distal end of the first pipe member and the distal end of the second pipe member are respectively inserted into the first upper rectifier arranged in the vertical direction. A third pipe member communicating with the water supply port and a fourth pipe member communicating with the water intake port extend in the tank body, and have a bottomed bottom with an inner diameter larger than the inner diameter of both pipe members. The distal end of the third pipe member and the distal end of the fourth pipe member are respectively inserted into a first lower rectifier having a tubular shape and having an opening facing the bottom near the bottom in the tank body. It is characterized by having been done.

請求項9記載の本発明は、湯水を貯える横型殻状の槽本体に、外部へ湯水を供給する給湯口、内部へ湯を注入する注湯口、内部へ原水を供給する給水口、内部から取水する取水口、及び前記給湯口から外部へ供給した湯水を内部へ返送するための返湯口が設けてある貯湯槽において、前記槽本体内の天井に、前記注湯口の内径及び返湯口の内径より大きい内径のトンネル状の第2上側整流器が貯湯槽の長手方向へ設けてあり、また、槽本体内の底部に、前記給水口の内径及び取水口の内径より大きい内径のトンネル状の第2下側整流器が貯湯槽の長手方向へ設けてあり、前記給湯口、注湯口及び返湯口は、前記第2上側整流器内に連通させてあり、前記給水口及び取水口は、前記第2下側整流器内に連通させてあることを特徴とする。   According to a ninth aspect of the present invention, there is provided a horizontal shell-shaped tank body for storing hot water, a hot water supply port for supplying hot water to the outside, a hot water supply port for injecting hot water into the inside, a water supply port for supplying raw water to the inside, and water intake from inside. In a hot water storage tank provided with a hot water supply port for returning hot water supplied from the hot water supply port to the outside, and a hot water supply port for returning the hot water to the inside of the hot water supply port, the inside diameter of the hot water supply port and the inside diameter of the hot water supply port are provided on the ceiling in the tank body. A tunnel-shaped second upper rectifier having a large inner diameter is provided in the longitudinal direction of the hot water tank, and a second lower rectifier having an inner diameter larger than the inner diameter of the water supply port and the inner diameter of the water intake port is provided at the bottom in the tank body. A side rectifier is provided in the longitudinal direction of the hot water storage tank, the hot water supply port, the pouring port and the hot water return port are communicated with the second upper rectifier, and the water supply port and the water intake port are connected to the second lower rectifier. It is characterized by being communicated with the inside.

請求項10記載の本発明は、湯水を貯える殻状の槽本体を具備する貯湯槽と、水を加熱して湯を供給する加熱器と、互いに加熱器と前記貯湯槽との間に架設してあり、貯湯槽から取水する取水管及び貯湯槽へ湯を注入する注湯管と、前記取水管に介装してあり貯湯槽内の水を加熱器へ送給するポンプと、前記貯湯槽外へ湯水を供給する給湯管と、貯湯槽内へ原水を供給する給水管とを備える給湯装置において、請求項1から6のいずれかに記載の貯湯槽を備えることを特徴とする。   The present invention according to claim 10 provides a hot water storage tank having a shell-shaped tank main body for storing hot water, a heater for heating water to supply hot water, and a bridge between the heater and the hot water storage tank. A water intake pipe for taking water from the hot water tank and a pouring pipe for injecting hot water into the hot water tank, a pump interposed in the water intake pipe for feeding water in the hot water tank to a heater, and the hot water tank A hot water supply device comprising a hot water supply pipe for supplying hot water to the outside and a water supply pipe for supplying raw water into the hot water storage tank is provided with the hot water storage tank according to any one of claims 1 to 6.

請求項11記載の本発明は、湯水を貯える殻状の槽本体を具備する貯湯槽と、水を加熱して湯を供給する加熱器と、互いに加熱器と前記貯湯槽との間に架設してあり、貯湯槽から取水する取水管及び貯湯槽へ湯を注入する注湯管と、前記取水管に介装してあり貯湯槽内の水を加熱器へ送給するポンプと、前記貯湯槽外へ湯水を供給する給湯管と、貯湯槽内へ原水を供給する給水管と、前記給湯管に連通し、貯湯槽へ返湯する返湯管とを備える給湯装置において、請求項7、8又は9に記載の貯湯槽を備えることを特徴とする。   The present invention according to claim 11 is a hot water storage tank having a shell-shaped tank main body for storing hot water, a heater for heating water and supplying hot water, and a bridge between the heater and the hot water tank. A water intake pipe for taking water from the hot water tank and a pouring pipe for injecting hot water into the hot water tank, a pump interposed in the water intake pipe for feeding water in the hot water tank to a heater, and the hot water tank A hot water supply apparatus comprising: a hot water supply pipe for supplying hot water to the outside; a water supply pipe for supplying raw water into the hot water storage tank; and a hot water return pipe communicating with the hot water supply pipe and returning hot water to the hot water storage tank. Or the hot water storage tank described in 9 is provided.

請求項12記載の本発明は、更に、前記貯湯槽内の温度を検出する検温器と、この検温器が検出した温度に基づいて前記ポンプの運転を制御する制御器とを備え、前記検温器は、前記槽本体の底部近傍に配置してあることを特徴とする。   The present invention according to claim 12, further comprising: a temperature detector for detecting a temperature in the hot water storage tank; and a controller for controlling operation of the pump based on the temperature detected by the temperature detector. Is arranged near the bottom of the tank body.

請求項13記載の本発明は、前記槽本体の高さ方向へ前記検温器と位置を異ならせて配設してあり、貯湯槽内の温度を検出する一又は複数の他の検温器を更に備え、前記制御器は、前記検温器から与えられる温度信号及び前記他の検温器から与えられる温度信号の内、前記ポンプの運転の制御に用いる温度信号を切り替える切替手段を具備することを特徴とする。   The present invention according to claim 13 is arranged so that the position of the temperature detector differs from that of the temperature detector in the height direction of the tank body, and further includes one or more other temperature detectors for detecting the temperature in the hot water storage tank. Wherein the controller comprises switching means for switching a temperature signal used for controlling the operation of the pump, out of a temperature signal given from the temperature detector and a temperature signal given from the other temperature detector. I do.

請求項14記載の本発明は、前記切替手段は、前記検温器及び/又は他の検温器に対応して、任意の切替時刻を設定することができる切替時刻設定手段と、時刻を計測する時計とを具備し、この時計が計測した時刻と前記切替時刻設定手段で設定された時刻とが一致したとき、対応する検温器から与えられる温度信号に切り替えるようにしてあることを特徴とする。   The present invention according to claim 14, wherein the switching means is a switching time setting means capable of setting an arbitrary switching time corresponding to the temperature detector and / or another temperature detector, and a clock for measuring the time. And when the time measured by the clock coincides with the time set by the switching time setting means, the time is switched to a temperature signal given from a corresponding temperature detector.

請求項15記載の本発明は、前記給水管で供給される原水の温度を検出する原水用検温器を備え、前記切替手段は、前記原水用検温器が検出した原水の温度及び予め設定された基準温度に基づいて、前記切り替え動作を行うようにしてあることを特徴とする。   The present invention according to claim 15 is provided with a raw water temperature detector for detecting the temperature of raw water supplied by the water supply pipe, and the switching means is configured to set a temperature of the raw water detected by the raw water temperature detector and a preset temperature. The switching operation is performed based on a reference temperature.

請求項1及び3記載の本発明によれば、槽本体内の天井又はその近傍に、注湯口(第1連通口)から注入される湯を、減速させつつ槽本体の天井へ導く上側整流部材が配置してあり、前記槽本体内の底部又はその近傍に、給水口(第2連通口)から供給される原水を、減速させつつ槽本体の底部へ導く下側整流部材が配置してあるため、貯湯槽内で撹拌・対流を生じることが可及的に防止され、注入された湯は貯湯槽の天井から底部へ、順次積層される態様で、即ち、原水との界面を保った状態で貯えられて行くと共に、給水口から内部に供給された原水は、貯湯槽内で撹拌・対流を生じることが可及的に防止され、内部に供給された原水は、槽本体の底部に留まり、湯と原水との界面が乱れることなく保たれる。従って、貯湯槽内のほとんどの領域を湯にすることができ、従来と同じ容積の貯湯槽で有効温度の湯水をより多量に貯蔵することができるため、より少ない容量の貯湯槽を適用することができる。従って、貯湯槽に要する部品コストを低減し得ると共に、より狭い設置スペースに設置することができる。   According to the first and third aspects of the present invention, the upper rectifying member that guides the hot water injected from the pouring port (first communication port) to the ceiling of the tank main body at or near the ceiling in the tank main body while decelerating the hot water. And a lower rectifying member that guides raw water supplied from a water supply port (second communication port) to the bottom of the tank main body while decelerating the raw water supplied from the water supply port (second communication port) is disposed at or near the bottom in the tank main body. Therefore, stirring and convection in the hot water storage tank are prevented as much as possible, and the injected hot water is sequentially stacked from the ceiling to the bottom of the hot water storage tank, that is, a state in which the interface with the raw water is maintained. The raw water supplied to the inside from the water supply port is prevented as much as possible from being stirred and convection in the hot water storage tank, and the raw water supplied to the inside stays at the bottom of the tank main body. In addition, the interface between hot water and raw water is maintained without being disturbed. Therefore, since most of the area in the hot water tank can be turned into hot water, and a large amount of hot and cold water at the effective temperature can be stored in the hot water tank having the same volume as the conventional one, it is necessary to apply a hot water tank with a smaller capacity. Can be. Therefore, the cost of parts required for the hot water storage tank can be reduced, and the hot water tank can be installed in a narrower installation space.

また、請求項2及び4記載の本発明によれば、上側整流部材内の流路の断面面積は、注湯口の断面面積(第1連通口から注入される湯の流路の断面面積)より大きく、下側整流部材内の流路の断面面積は、給水口の断面面積(第2連通路から供給される原水の流路の断面面積)より大きいため、注湯口から注入される湯は、上側整流部材内に流入するとその流速が低減され、緩やかな流れとなって貯湯槽内の天井へ導かれ、同様に、給水管から供給される原水は、下側整流部材内に流入するとその流速が低減され、緩やかな流れとなって貯湯槽内の底部へ導かれる。   According to the second and fourth aspects of the present invention, the cross-sectional area of the flow path in the upper rectifying member is larger than the cross-sectional area of the pouring port (the cross-sectional area of the flow path of hot water injected from the first communication port). Since the cross-sectional area of the flow path in the lower rectifying member is larger than the cross-sectional area of the water supply port (the cross-sectional area of the flow path of the raw water supplied from the second communication path), the hot water injected from the pouring port is When flowing into the upper rectifying member, the flow velocity is reduced and the flow becomes gentle and is guided to the ceiling in the hot water storage tank. Similarly, when the raw water supplied from the water supply pipe flows into the lower rectifying member, the flow velocity becomes Is reduced, and a gentle flow is guided to the bottom in the hot water storage tank.

請求項5記載の本発明によれば、注湯口から注入される湯は、上側整流部材の内面に衝突して進行方向が天井へ変更されるようにしてあり、給水口から供給される原水は、下側整流部材の内面に衝突して進行方向が底部へ変更されるようにしてあるため、湯及び原水は、上側整流部材の内面及び下側整流部材の内面にそれぞれ衝突した後、その向きを変えられて槽本体内の天井及び底部へ導かれ、これによっても流速が低減され、より減速された湯及び原水が槽本体内の天井及び底部へ導かれる。   According to the fifth aspect of the present invention, the hot water injected from the pouring port collides with the inner surface of the upper rectifying member so that the traveling direction is changed to the ceiling, and the raw water supplied from the water supply port is Since the traveling direction is changed to the bottom by colliding with the inner surface of the lower rectifying member, the hot water and the raw water collide with the inner surface of the upper rectifying member and the inner surface of the lower rectifying member, respectively. Is changed and guided to the ceiling and the bottom in the tank body, whereby the flow velocity is also reduced, and hot water and raw water with a further reduced speed are guided to the ceiling and the bottom in the tank body.

請求項6記載の本発明によれば、取水口は下側整流部材の流路中から取水するようにしてあるため、給水口から下側整流部材の流路内へ供給された原水の一部がそのまま取水され、これによって、原水の供給が槽本体内に与える撹拌の影響が低減される。   According to the sixth aspect of the present invention, since the water intake port is configured to take water from inside the flow path of the lower rectifying member, a part of the raw water supplied from the water supply port into the flow path of the lower rectification member. Is taken as it is, thereby reducing the influence of stirring on the supply of raw water in the tank body.

請求項7記載の本発明によれば、給湯口から外部へ供給した湯水を内部へ返送するための返湯口が、前記上側整流部材内へ返湯するように設けてあるため、槽本体内に返送された湯水は、注湯口から注入される湯と混合して温度差が低減された後、槽本体内の天井へ緩やかに導かれ、返湯が槽本体内に与える撹拌・対流の影響が可及的に低減される。   According to the present invention as set forth in claim 7, since the hot water supply port for returning hot water supplied from the hot water supply port to the outside is provided so as to return hot water into the upper rectifying member, the inside of the tank main body is provided. The returned hot water mixes with the hot water injected from the pouring port to reduce the temperature difference, and then is gently guided to the ceiling inside the tank body, and the effect of the stirring and convection that the returned hot water has on the inside of the tank body. It is reduced as much as possible.

請求項8記載の本発明によれば、注湯口に連通した第1管部材及び返湯口に連通した第2管部材が、槽本体内に延設してあり、両管部材の内径より大きい内径の有底筒状をなし、槽本体内の天井近傍に、その開口を前記天井に臨ませて配置した第1上側整流器内に、第1管部材の先端部及び第2管部材の先端部がそれぞれ挿入させてあり、また、給水口に連通した第3管部材及び取水口に連通した第4管部材が、槽本体内に延設してあり、両管部材の内径より大きい内径の有底筒状をなし、槽本体内の底部近傍に、その開口を前記底部に臨ませて配置した第1下側整流器内に、第3管部材の先端部及び第4管部材の先端部がそれぞれ挿入させてあるため、貯湯槽内のほとんどの領域を湯にすることができ、従来と同じ容積の貯湯槽で有効温度の湯水をより多量に貯蔵することができるため、より少ない容量の貯湯槽を適用することができる。従って、貯湯槽に要する部品コストを低減し得ると共に、より狭い設置スペースに設置することができる。   According to the present invention as set forth in claim 8, the first pipe member communicating with the pouring port and the second pipe member communicating with the return port extend inside the tank body and have an inner diameter larger than the inner diameter of both pipe members. The top end of the first pipe member and the front end of the second pipe member are disposed in a first upper rectifier having a bottomed cylindrical shape near the ceiling in the tank body and an opening facing the ceiling. A third pipe member connected to the water supply port and a fourth pipe member connected to the water intake port extend in the tank body, and have a bottomed bottom having an inner diameter larger than the inner diameter of both pipe members. The distal end of the third pipe member and the distal end of the fourth pipe member are respectively inserted into a first lower rectifier having a tubular shape and having an opening facing the bottom near the bottom in the tank body. Most of the area inside the hot water tank can be turned into hot water. It is possible to store hot water in larger amounts, it can be applied hot water storage tank of smaller volume. Therefore, the cost of parts required for the hot water storage tank can be reduced, and the hot water tank can be installed in a narrower installation space.

また、請求項9記載の本発明によれば、槽本体内の天井に、注湯口の内径及び返湯口の内径より大きい内径のトンネル状の第2上側整流器が貯湯槽の長手方向へ設けてあり、また、槽本体内の底部に、前記給水口の内径及び取水口の内径より大きい内径のトンネル状の第2下側整流器が貯湯槽の長手方向へ設けてあり、給湯口、注湯口及び返湯口は、第2上側整流器内に連通させてあり、給水口及び取水口は、第2下側整流器内に連通させてあるため、注湯口から注入される湯、及び返湯口から返送される湯水は第2上側整流器内で混合され温度が低減されると共に流速が減じられて第2上側整流器の開口から槽本体内の天井へ緩やかに流出される。このとき、第2上側整流器が横型の槽本体の長手方向へ設けてあるため、天井の長手方向へ拡がり、撹拌・対流が生じ難い。従って、第2上側整流器の開口から流出された湯は、貯湯槽内で撹拌・対流を生じることが可及的に防止され、貯湯槽の天井から底部へ、順次積層される態様で、即ち、原水との界面を保った状態で貯えられて行く。   According to the ninth aspect of the present invention, a tunnel-shaped second upper rectifier having an inner diameter larger than the inner diameter of the pouring port and the inner diameter of the return port is provided on the ceiling in the tank body in the longitudinal direction of the hot water tank. Also, a tunnel-shaped second lower rectifier having an inner diameter larger than the inner diameter of the water supply port and the inner diameter of the water intake port is provided at the bottom in the tank main body in the longitudinal direction of the hot water storage tank. The spout is communicated with the second upper rectifier, and the water supply port and the intake port are communicated with the second lower rectifier, so that hot water injected from the pouring port and hot water returned from the return port are provided. Are mixed in the second upper rectifier, the temperature is reduced and the flow velocity is reduced, and the water is slowly discharged from the opening of the second upper rectifier to the ceiling in the tank body. At this time, since the second upper rectifier is provided in the longitudinal direction of the horizontal tank main body, it spreads in the longitudinal direction of the ceiling, and stirring and convection hardly occur. Therefore, the hot water flowing out of the opening of the second upper rectifier is prevented as much as possible from causing agitation and convection in the hot water tank, and is sequentially stacked from the ceiling to the bottom of the hot water tank, that is, It is stored while maintaining the interface with raw water.

また、給水口から給水される原水は、前同様、第2下側整流器によって緩やかに槽本体内の底部へ導かれてそこに貯えられて行く。従って、貯湯槽内で撹拌・対流を生じることが可及的に防止され、内部に供給された原水は、槽本体の底部に留まり、湯と原水との界面が乱れることなく保たれる。   The raw water supplied from the water supply port is gently guided to the bottom in the tank body by the second lower rectifier as before, and is stored there. Therefore, the generation of agitation and convection in the hot water storage tank is prevented as much as possible, and the raw water supplied inside stays at the bottom of the tank main body, and the interface between the hot water and the raw water is maintained without being disturbed.

ところで、請求項10及び11記載の本発明では、上述した如き貯湯槽を備えるため、貯湯槽に要する部品コストを低減し得ると共に、より狭い設置スペースに貯湯槽を設置することができる。   By the way, according to the present invention as set forth in claims 10 and 11, since the hot water tank is provided as described above, the cost of parts required for the hot water tank can be reduced, and the hot water tank can be installed in a narrower installation space.

請求項12記載の本発明によれば、貯湯槽内の温度を検出する検温器と、この検温器が検出した温度に基づいて前記ポンプの運転を制御する制御器とを備え、前記検温器は、前記槽本体の底部近傍に配置してあるため、槽本体内の略全領域が所定の温度の湯に保たれる。   According to the twelfth aspect of the present invention, there is provided a temperature detector for detecting the temperature in the hot water storage tank, and a controller for controlling the operation of the pump based on the temperature detected by the temperature detector. Since it is arranged near the bottom of the tank main body, substantially the entire area in the tank main body is kept at a predetermined temperature of hot water.

請求項13記載の本発明によれば、槽本体の高さ方向へ前記検温器と位置を異ならせて配設してあり、貯湯槽内の温度を検出する一又は複数の他の検温器を更に備え、前記制御器は、前記検温器から与えられる温度信号及び前記他の検温器から与えられる温度信号の内、前記ポンプの運転の制御に用いる温度信号を切り替える切替手段を具備するため、貯湯槽内で高湯水温領域と水温領域との界面を維持した状態で給湯運転を行うことができるのに加え、切替手段で与えられる温度信号を切り替えることによって、貯湯槽に貯蔵される有効温度の湯水の容量を、貯湯槽の天井部から対応する検温器が取付けられた高さ位置までの容量にそれぞれ変更させることができる。これによって、貯湯槽からの給湯状況に応じた容量の湯水を貯湯槽内に蓄えることができるので、原水の加熱に要する燃料コストを可及的に低減することができ、給湯装置のランニングコストを小さくすることができる。   According to the present invention as set forth in claim 13, the temperature detector is disposed at a position different from the temperature detector in the height direction of the tank main body, and one or more other temperature detectors for detecting the temperature in the hot water storage tank are provided. Furthermore, the controller is provided with switching means for switching a temperature signal used for controlling the operation of the pump among a temperature signal provided from the temperature detector and a temperature signal provided from the other temperature detector. In addition to performing the hot water supply operation while maintaining the interface between the high hot water temperature region and the water temperature region in the tank, the effective temperature of the hot water stored in the hot water storage tank can be stored by switching the temperature signal given by the switching means. Can be changed to the capacity from the ceiling of the hot water tank to the height position where the corresponding temperature detector is attached. With this, hot water having a capacity according to the hot water supply condition from the hot water storage tank can be stored in the hot water storage tank, so that the fuel cost required for heating the raw water can be reduced as much as possible, and the running cost of the hot water supply device can be reduced. Can be smaller.

請求項14記載の本発明によれば、切替手段は、前記検温器及び/又は他の検温器に対応して、任意の切替時刻を設定することができる切替時刻設定手段と、時刻を計測する時計とを具備し、この時計が計測した時刻と前記切替時刻設定手段で設定された時刻とが一致したとき、対応する検温器から与えられる温度信号に切り替えるようにしてあるため、時間帯に応じて貯湯槽からの給湯状況が変化する場合、それに対応する時刻を予め設定しておくことによって、貯湯槽に貯蔵される有効温度の湯水の容量を自動で変更させることができ、管理者は切替作業という煩雑な作業から解放される。   According to the fourteenth aspect of the present invention, the switching unit measures the time and the switching time setting unit that can set an arbitrary switching time corresponding to the temperature detector and / or another temperature detector. A clock is provided, and when the time measured by the clock matches the time set by the switching time setting means, the temperature is switched to a temperature signal given from a corresponding temperature detector. When the hot water supply condition from the hot water storage tank changes, the capacity of the effective temperature hot water stored in the hot water storage tank can be automatically changed by presetting the corresponding time in advance, You are free from the complicated work of work.

請求項15記載の本発明によれば、前記貯湯槽に原水を供給する給水管で供給される原水の温度を検出する原水用検温器を備え、切替手段は、原水用検温器が検出した原水の温度及び予め設定された基準温度に基づいて、前記切り替え動作を行うようにしてあるため、季節で変化する原水の温度に応じて、貯湯槽に貯蔵される有効温度の湯水の容量を自動で変更させることができる。   According to the present invention as set forth in claim 15, there is provided a raw water temperature detector for detecting a temperature of the raw water supplied by a water supply pipe for supplying the raw water to the hot water storage tank, and the switching means is configured to detect the raw water detected by the raw water temperature detector. The switching operation is performed based on the temperature of the raw water and the preset reference temperature, so that the capacity of the effective temperature of the hot water stored in the hot water storage tank is automatically adjusted according to the temperature of the raw water that changes with the season. Can be changed.

本発明では、湯水を貯える殻状の槽本体の天井に、外部へ湯水を供給する給湯口(第1連通口)が配設してあり、槽本体の天井側に、内部へ湯を注入する注湯口(第1連通口)が配設してあり、槽本体の底部側に、内部へ原水を供給する給水口(第2連通口)及び内部から取水する取水口(第2連通口)が配設してある。   In the present invention, a hot water supply port (first communication port) for supplying hot water to the outside is provided on the ceiling of the shell-shaped tank main body storing hot water, and hot water is injected into the ceiling side of the tank main body. A pouring port (first communication port) is provided, and a water supply port (second communication port) for supplying raw water to the inside and a water intake port (second communication port) for taking water from inside are provided on the bottom side of the tank body. It is arranged.

なお、槽本体に第1連通口を1つ設けておき、この第1連通口によって、外部への湯水の供給と、内部への湯の注入を第2連通口とを行うようにしてもよい。同様に、槽本体に第2連通口を1つ設けておき、この第2連通口によって、内部への原水の供給と、内部からの取水とを行うようにしてもよい。   The tank body may be provided with one first communication port, and the first communication port may be used to supply hot water to the outside and to inject the hot water into the second communication port. . Similarly, one second communication port may be provided in the tank body, and the supply of raw water to the inside and the intake of water from the inside may be performed by the second communication port.

この槽本体内の天井又はその近傍に、注湯口(第1連通口)から注入される湯を、減速させつつ槽本体の天井へ導く上側整流部材が配置してあり、注湯口(第1連通口)から注入された湯は、上側整流部材によって緩やかに槽本体内の天井へ導かれてそこに貯えられて行く。従って、貯湯槽内で撹拌・対流を生じることが可及的に防止され、注入された湯は貯湯槽の天井から底部へ、順次積層される態様で、即ち、原水との界面を保った状態で貯えられて行く。   An upper rectifying member that guides the hot water injected from the pouring port (first communication port) to the ceiling of the tank main body while decelerating the hot water injected from the pouring port (first communication port) is disposed at or near the ceiling in the tank body. The hot water injected from the mouth) is gently guided to the ceiling in the tank body by the upper rectifying member and stored there. Therefore, agitation and convection in the hot water tank are prevented as much as possible, and the injected hot water is sequentially stacked from the ceiling to the bottom of the hot water tank, that is, in a state where the interface with the raw water is maintained. Going to be stored.

一方、槽本体内の底部又はその近傍に、給水口(第2連通口)から供給される原水を、減速させつつ槽本体の底部へ導く下側整流部材が配置してあり、給水口(第2連通口)から内部に供給された原水は、下側整流部材によって緩やかに槽本体内の底部へ導かれてそこに貯えられて行く。従って、前同様、貯湯槽内で撹拌・対流を生じることが可及的に防止され、内部に供給された原水は、槽本体の底部に留まり、湯と原水との界面が乱れることなく保たれる。   On the other hand, a lower rectifying member that guides raw water supplied from a water supply port (second communication port) to the bottom of the tank main body while decelerating the raw water is disposed at or near the bottom of the tank main body. Raw water supplied to the inside from the (two communication ports) is gently guided to the bottom in the tank body by the lower rectifying member and stored there. Therefore, as before, agitation and convection in the hot water storage tank are prevented as much as possible, and the raw water supplied inside stays at the bottom of the tank main body, and the interface between the hot water and the raw water is maintained without being disturbed. It is.

これによって、貯湯槽内のほとんどの領域を湯にすることができ、従来と同じ容積の貯湯槽で有効温度の湯水をより多量に貯蔵することができるため、より少ない容量の貯湯槽を適用することができる。従って、貯湯槽に要する部品コストを低減し得ると共に、より狭い設置スペースに設置することができる。   This makes it possible to make most of the area in the hot water tank hot water, and to store a larger amount of hot water at the effective temperature in the hot water tank having the same volume as before, so that a hot water tank with a smaller capacity is applied. be able to. Therefore, the cost of parts required for the hot water storage tank can be reduced, and the hot water tank can be installed in a narrower installation space.

また、本発明では、貯湯槽内に配置した上側整流部材内の流路の断面面積は、注湯口の断面面積(第1連通口から注入される湯の流路の断面面積)より大きく、これによって、注湯口から注入される湯は、上側整流部材内に流入するとその流速が低減され、緩やかな流れとなって貯湯槽内の天井へ導かれる。同様に、貯湯槽内に配置した下側整流部材内の流路の断面面積は、給水口の断面面積(第2連通路から供給される原水の流路の断面面積)より大きく、給水管から供給される原水は、下側整流部材内に流入するとその流速が低減され、緩やかな流れとなって貯湯槽内の底部へ導かれる。   Further, in the present invention, the cross-sectional area of the flow path in the upper straightening member disposed in the hot water storage tank is larger than the cross-sectional area of the pouring port (the cross-sectional area of the flow path of hot water injected from the first communication port). Thus, when the hot water injected from the pouring port flows into the upper straightening member, the flow velocity thereof is reduced, and the hot water is led to the ceiling in the hot water storage tank as a gentle flow. Similarly, the cross-sectional area of the flow path in the lower rectifying member disposed in the hot water storage tank is larger than the cross-sectional area of the water supply port (the cross-sectional area of the flow path of raw water supplied from the second communication path), and When the supplied raw water flows into the lower rectifying member, the flow velocity thereof is reduced, and the raw water becomes a gentle flow and is guided to the bottom in the hot water storage tank.

更に、本発明では、注湯口から注入される湯は、上側整流部材の内面に衝突して進行方向が天井へ変更されるようにしてあり、給水口から供給される原水は、下側整流部材の内面に衝突して進行方向が底部へ変更されるようにしてある。このように、湯及び原水は、上側整流部材の内面及び下側整流部材の内面にそれぞれ衝突した後、その向きを変えられて槽本体内の天井及び底部へ導かれるため、これによっても流速が低減され、より減速された湯及び原水が槽本体内の天井及び底部へ導かれる。   Further, in the present invention, the hot water injected from the pouring port collides with the inner surface of the upper rectifying member so that the traveling direction is changed to the ceiling, and the raw water supplied from the water supply port is supplied to the lower rectifying member. The traveling direction is changed to the bottom by colliding with the inner surface of the vehicle. In this way, the hot water and the raw water collide with the inner surface of the upper rectifying member and the inner surface of the lower rectifying member, respectively, and then are turned and guided to the ceiling and the bottom in the tank body. Hot water and raw water that has been reduced and decelerated is guided to the ceiling and the bottom in the tank body.

また、本発明では、前述した取水口は下側整流部材の流路中から取水するようにしてあるため、給水口から下側整流部材の流路内へ供給された原水の一部がそのまま取水され、これによって、原水の供給が槽本体内に与える撹拌の影響が低減される。また、取水口の断面面積を下側整流部材の流路の断面面積より小さくしておくことによって、槽本体内から緩やかに取水することができ、槽本体内からの取水が槽本体内に与える撹拌の影響を可及的に低減することができる。   Further, in the present invention, since the above-mentioned water intake port is configured to take water from inside the flow path of the lower rectification member, a part of the raw water supplied from the water supply port into the flow path of the lower rectification member is taken as it is. As a result, the influence of stirring on the supply of raw water to the inside of the tank body is reduced. In addition, by making the cross-sectional area of the water intake smaller than the cross-sectional area of the flow path of the lower rectifying member, it is possible to take water gently from the inside of the tank main body, and the water taken from inside the tank main body is given to the inside of the tank main body. The effect of stirring can be reduced as much as possible.

ところで、給湯口から外部へ供給した湯水を内部へ返送するための返湯口が槽本体に設けてある場合、本発明では、槽本体に返湯口が、直接又は管状部材を介して、上側整流部材内へ返湯するように設けてある。これによって、槽本体内に返送された湯水は、注湯口から注入される湯と混合して温度差が低減された後、槽本体内の天井へ緩やかに導かれるため、返湯が槽本体内に与える撹拌・対流の影響が可及的に低減される。   By the way, in the present invention, when the hot water supply port for returning hot and cold water supplied from the hot water supply port to the inside is provided in the tank main body, the hot water return port is provided in the tank main body directly or through the tubular member. It is provided to return hot water inside. As a result, the hot water returned into the tank body is mixed with the hot water injected from the pouring port to reduce the temperature difference, and is then gently guided to the ceiling in the tank body. The effect of agitation and convection on the water is reduced as much as possible.

本発明を竪型の貯湯槽に適用した場合は次のような構成になる。即ち、湯水を貯える竪型殻状の槽本体の天井に、外部へ湯水を供給する給湯口が配設してあり、槽本体の天井側に、内部へ湯を注入する注湯口及び給湯口から外部へ供給した湯水を内部へ返送するための返湯口が配設してあり、槽本体の底部側に、内部へ原水を供給する給水口及び内部から取水する取水口が配設してある。   When the present invention is applied to a vertical hot water storage tank, the configuration is as follows. That is, a hot water supply port for supplying hot water to the outside is provided on the ceiling of the vertical shell-shaped tank main body for storing hot water, and a hot water supply port and a hot water supply port for injecting hot water into the inside are provided on the ceiling side of the tank main body. A hot water outlet for returning hot water supplied to the outside to the inside is provided, and a water supply port for supplying raw water to the inside and a water intake for taking water from the inside are provided on the bottom side of the tank body.

前記注湯口には第1管部材が連通させてあり、返湯口には第2管部材が連通させてあり、両管部材は、槽本体内の直径方向へ互いに対向するように延設してある。槽本体内の天井近傍には、両管部材の内径より大きい内径の有底筒状をなし、その開口を前記天井に臨ませて第1上側整流器が配置してあり、この第1上側整流器内に、第1管部材の先端部及び第2管部材の先端部がそれぞれ挿入させてある。第1上側整流器内には、第1管部材の先端部から湯が、また第2管部材の先端部から返送された湯水が流入され、湯及び湯水は第1上側整流器内で混合され温度が低減されると共に流速が減じられて第1上側整流器の開口から槽本体内の天井へ緩やかに流出される。このとき、両管部材が、槽本体内の直径方向へ互いに対向するように延設してあるため、湯及び湯水は互いに衝突し、これによっても流速が低減される。従って、第1上側整流器の開口から流出された湯は、貯湯槽内で撹拌・対流を生じることが可及的に防止され、貯湯槽の天井から底部へ、順次積層される態様で、即ち、原水との界面を保った状態で貯えられて行く。   A first pipe member communicates with the pouring port, a second pipe member communicates with the pouring port, and both pipe members extend so as to face each other in a diametric direction in the tank body. is there. In the vicinity of the ceiling in the tank body, a bottomed cylindrical shape having an inner diameter larger than the inner diameter of both pipe members is formed, and a first upper rectifier is arranged with its opening facing the ceiling. The distal end of the first tubular member and the distal end of the second tubular member are inserted respectively. Hot water flows from the distal end of the first pipe member and hot water returned from the distal end of the second pipe member into the first upper rectifier. The hot water and hot water are mixed in the first upper rectifier and the temperature is reduced. The flow rate is reduced and the flow rate is reduced, so that the gas flows slowly from the opening of the first upper rectifier to the ceiling in the tank body. At this time, since the two pipe members extend so as to face each other in the diametrical direction in the tank body, the hot water and the hot water collide with each other, thereby also reducing the flow velocity. Therefore, the hot water flowing out from the opening of the first upper rectifier is prevented as much as possible from causing agitation and convection in the hot water tank, and is sequentially stacked from the ceiling to the bottom of the hot water tank, that is, It is stored while maintaining the interface with raw water.

一方、給水口には第3管部材が連通させてあり、取水口には第4管部材が連通させてあり、両管部材は、槽本体内の直径方向へ互いに対向するように延設してある。槽本体内の底部近傍には、両管部材の内径より大きい内径の有底筒状をなし、その開口を前記底部に臨ませた第1下側整流器が配置してあり、この第1下側整流器内に、第3管部材の先端部及び第4管部材の先端部がそれぞれ挿入させてある。これによって、給水口から内部に供給された原水は、前同様、第1下側整流器によって緩やかに槽本体内の底部へ導かれてそこに貯えられて行く。従って、前同様、貯湯槽内で撹拌・対流を生じることが可及的に防止され、内部に供給された原水は、槽本体の底部に留まり、湯と原水との界面が乱れることなく保たれる。   On the other hand, a third pipe member is communicated with the water supply port, a fourth pipe member is communicated with the water intake port, and both pipe members extend so as to face each other in the diametric direction in the tank body. It is. In the vicinity of the bottom in the tank body, a first lower rectifier having a bottomed cylindrical shape having an inner diameter larger than the inner diameter of both pipe members and having an opening facing the bottom is disposed. The distal end of the third pipe member and the distal end of the fourth pipe member are inserted into the rectifier. As a result, the raw water supplied to the inside from the water supply port is gently guided to the bottom in the tank body by the first lower rectifier as before, and is stored there. Therefore, as before, agitation and convection in the hot water storage tank are prevented as much as possible, and the raw water supplied inside stays at the bottom of the tank main body, and the interface between the hot water and the raw water is maintained without being disturbed. It is.

これによって、貯湯槽内のほとんどの領域を湯にすることができ、従来と同じ容積の貯湯槽で有効温度の湯水をより多量に貯蔵することができるため、より少ない容量の貯湯槽を適用することができる。従って、貯湯槽に要する部品コストを低減し得ると共に、より狭い設置スペースに設置することができる。   This makes it possible to make most of the area in the hot water tank hot water, and to store a larger amount of hot water at the effective temperature in the hot water tank having the same volume as before, so that a hot water tank with a smaller capacity is applied. be able to. Therefore, the cost of parts required for the hot water storage tank can be reduced, and the hot water tank can be installed in a narrower installation space.

また、本発明を横型の貯湯槽に適用した場合は次のような構成になる。即ち、湯水を貯える横型殻状の槽本体内の天井に、注湯口の内径及び返湯口の内径より大きい内径のトンネル状の第2上側整流器が貯湯槽の長手方向へ設けてあり、また、槽本体内の底部に、給水口の内径及び取水口の内径より大きい内径のトンネル状の第2下側整流器が貯湯槽の長手方向へ設けてある。そして、給湯口、注湯口及び返湯口は、第2上側整流器内に連通させてあり、給水口及び取水口は、第2下側整流器内に連通させてある。   When the present invention is applied to a horizontal hot water storage tank, the configuration is as follows. That is, a tunnel-shaped second upper rectifier having an inner diameter larger than an inner diameter of a pouring port and an inner diameter of a returning port is provided on a ceiling in a horizontal shell-shaped tank body for storing hot and cold water in a longitudinal direction of the hot water tank. A tunnel-like second lower rectifier having an inner diameter larger than the inner diameter of the water supply port and the inner diameter of the water intake port is provided at the bottom of the main body in the longitudinal direction of the hot water tank. The hot water inlet, the hot water inlet, and the hot water outlet are communicated with the second upper rectifier, and the water inlet and the water intake are communicated with the second lower rectifier.

これによって、注湯口から注入される湯、及び返湯口から返送される湯水は第2上側整流器内で混合され温度が低減されると共に流速が減じられて第2上側整流器の開口から槽本体内の天井へ緩やかに流出される。このとき、第2上側整流器が横型の槽本体の長手方向へ設けてあるため、天井の長手方向へ拡がり、撹拌・対流が生じ難い。従って、第2上側整流器の開口から流出された湯は、貯湯槽内で撹拌・対流を生じることが可及的に防止され、貯湯槽の天井から底部へ、順次積層される態様で、即ち、原水との界面を保った状態で貯えられて行く。   Thereby, the hot water injected from the pouring port and the hot water returned from the return port are mixed in the second upper rectifier, the temperature is reduced and the flow velocity is reduced, so that the water in the tank body is opened from the opening of the second upper rectifier. Spilled slowly to the ceiling. At this time, since the second upper rectifier is provided in the longitudinal direction of the horizontal tank main body, it spreads in the longitudinal direction of the ceiling, and stirring and convection hardly occur. Therefore, the hot water flowing out of the opening of the second upper rectifier is prevented as much as possible from causing agitation and convection in the hot water tank, and is sequentially stacked from the ceiling to the bottom of the hot water tank, that is, It is stored while maintaining the interface with raw water.

また、給水口から給水される原水は、前同様、第2下側整流器によって緩やかに槽本体内の底部へ導かれてそこに貯えられて行く。従って、貯湯槽内で撹拌・対流を生じることが可及的に防止され、内部に供給された原水は、槽本体の底部に留まり、湯と原水との界面が乱れることなく保たれる。   The raw water supplied from the water supply port is gently guided to the bottom in the tank body by the second lower rectifier as before, and is stored there. Therefore, the generation of agitation and convection in the hot water storage tank is prevented as much as possible, and the raw water supplied inside stays at the bottom of the tank main body, and the interface between the hot water and the raw water is maintained without being disturbed.

ところで、本発明に係る給湯装置は、前述した貯湯槽を備えるため、貯湯槽に要する部品コストを低減し得ると共に、より狭い設置スペースに貯湯槽を設置することができる。   By the way, since the hot water supply apparatus according to the present invention includes the above-described hot water storage tank, the cost of parts required for the hot water storage tank can be reduced, and the hot water storage tank can be installed in a narrower installation space.

また、本発明に係る給湯装置は、槽本体の底部近傍に配置し検温器が所定温度以下の温度を検出した場合、制御器はポンプを起動させて、槽本体内から取水させ、それを加熱器へ送って加熱させ、注湯管及び注湯口から槽内へ湯を供給させる。これによって、槽本体内の略全領域が所定の温度の湯に保たれる。   Further, in the hot water supply apparatus according to the present invention, when the temperature detector detects a temperature equal to or lower than a predetermined temperature when disposed near the bottom of the tank body, the controller activates the pump to take water from inside the tank body and heat it. It is sent to a vessel and heated, and hot water is supplied from the pouring pipe and pouring port into the tank. As a result, substantially the entire area in the tank main body is maintained at the hot water of the predetermined temperature.

一方、本発明に係る給湯装置は、貯湯槽内の温度を検出する一又は複数の他の検温器が、槽本体の高さ方向へ前記検温器と位置を異ならせて配設してあり、前述した制御器は、切替手段によって、前記検温器から与えられる温度信号及び前記他の検温器から与えられる温度信号の内、前記ポンプの運転の制御に用いる温度信号を切り替えるようにしてある。これによって、貯湯槽に貯蔵される有効温度の湯水の容量を、貯湯槽の天井部から対応する検温器が取付けられた高さ位置までの容量にそれぞれ変更させることができる。   On the other hand, in the hot water supply apparatus according to the present invention, one or a plurality of other temperature detectors for detecting the temperature in the hot water storage tank are disposed so as to be different in position from the temperature detector in the height direction of the tank body, In the above-mentioned controller, the switching means switches a temperature signal used for controlling the operation of the pump from a temperature signal provided from the temperature detector and a temperature signal provided from the other temperature detector. Thereby, the capacity of the hot water stored in the hot water storage tank can be changed to the capacity from the ceiling of the hot water storage tank to the height position where the corresponding temperature detector is mounted.

この切替手段には、検温器及び/又は他の検温器に対応して、任意の切替時刻を設定することができる切替時刻設定手段と、時刻を計測する時計とが設けてあり、切替手段は、時計が計測した時刻と切替時刻設定手段で設定された時刻とが一致したとき、対応する検温器から与えられる温度信号に切り替える。例えば、相対的に低い高さ位置の検温器と切替時刻設定手段とを対応付けておき、給湯量が多い時刻を切替時刻設定手段によって設定しておく。そして、切替手段は、時計が計測した時刻と、切替時刻設定手段によって設定された時刻とが一致した場合、相対的に低い高さ位置の検温器から与えられた温度信号に切り替える。これによって、給湯量が多い時間帯に、貯湯槽に貯蔵される有効温度の湯水の容量を多くすることができる。   The switching means is provided with a switching time setting means capable of setting an arbitrary switching time corresponding to the temperature detector and / or another temperature detector, and a clock for measuring the time. When the time measured by the clock matches the time set by the switching time setting means, the temperature is switched to the temperature signal given from the corresponding temperature detector. For example, the temperature detector at a relatively low height position is associated with the switching time setting means, and the time when the amount of hot water is large is set by the switching time setting means. When the time measured by the clock matches the time set by the switching time setting means, the switching means switches to a temperature signal given from a temperature detector at a relatively low height. This makes it possible to increase the capacity of the effective temperature hot and cold water stored in the hot water storage tank during a time period when the hot water supply amount is large.

一方、原水用検温器によって給水管で貯湯槽に供給される原水の温度を検出し、切替手段は、原水用検温器が検出した原水の温度及び予め設定された基準温度以下の場合、相対的に低い高さ位置の検温器から与えられた温度信号に切り替え、原水用検温器が検出した原水の温度及び予め設定された基準温度を超える場合、相対的に高い高さ位置の検温器から与えられた温度信号に切り替える。   On the other hand, the raw water temperature detector detects the temperature of the raw water supplied to the hot water storage tank by the water supply pipe, and the switching unit detects the temperature of the raw water detected by the raw water temperature detector and a relative temperature when the temperature is equal to or lower than a preset reference temperature. If the temperature exceeds the temperature of the raw water detected by the raw water thermometer and a preset reference temperature, the temperature is supplied from the thermometer at the relatively high height. Switch to the specified temperature signal.

以下、本発明に係る実施例の内容を図面に基づいて詳述する。   Hereinafter, the contents of the embodiment according to the present invention will be described in detail with reference to the drawings.

図1は本発明に係る給湯装置の構成を示す模式図であり、図中、1は貯湯槽である。貯湯槽1は、縦に配した円筒状の本体10aの上下端を部分球形状の天井部10b及び底部10cで封止してなる竪型の槽本体10を備えており、貯湯槽1の底部10cには複数の脚部が設けてある。本体10aであって底部10c近傍の位置には、水道水等の原水を供給する給水管50が連結してあり、該給水管50から貯湯槽1内に原水が加圧供給される。これによって、貯湯槽1内が加圧状態に維持されている。   FIG. 1 is a schematic diagram showing a configuration of a hot water supply apparatus according to the present invention, in which 1 is a hot water storage tank. The hot water storage tank 1 includes a vertical tank main body 10 in which the upper and lower ends of a vertically arranged cylindrical main body 10a are sealed with a partially spherical ceiling portion 10b and a bottom portion 10c. 10c has a plurality of legs. A water supply pipe 50 for supplying raw water such as tap water is connected to the main body 10a at a position near the bottom 10c, and the raw water is pressurized and supplied into the hot water storage tank 1 from the water supply pipe 50. Thus, the inside of the hot water storage tank 1 is maintained in a pressurized state.

また、貯湯槽1には、貯湯槽1内の貯蔵水を昇温すべく取水する取水管53の一端が、前述した給水管50の連結位置と対向配置してあり、該取水管53の他端は、無圧型又は減圧型等の加熱器40の入水口に連結してある。この取水管53の中途位置には、貯湯槽1内の貯蔵水を加熱器40へ給送するポンプ41が介装してある。また、加熱器40には、加熱昇温した湯水を出水する出水口が設けてあり、該出水口には、前記貯湯槽1へ湯水を注入する注湯管54の一端が連結してある。注湯管54の他端は、貯湯槽1の本体10aであって天井部10b近傍の位置に連結してあり、また、注湯管54の中途には自動空気抜き弁61が介装してある。これによって、貯湯槽1内の貯蔵水を加熱・昇温する循環路が形成されている。   In the hot water storage tank 1, one end of an intake pipe 53 that takes in water to raise the temperature of the stored water in the hot water storage tank 1 is disposed to face the connecting position of the water supply pipe 50 described above. The end is connected to an inlet of a heater 40 of a non-pressure type or a decompression type. A pump 41 for feeding stored water in the hot water storage tank 1 to the heater 40 is provided at an intermediate position of the water intake pipe 53. The heater 40 is provided with a water outlet for discharging the heated and heated hot water, and one end of a pouring pipe 54 for injecting the hot water into the hot water storage tank 1 is connected to the water outlet. The other end of the pouring pipe 54 is connected to a position near the ceiling 10b of the main body 10a of the hot water storage tank 1, and an automatic air vent valve 61 is provided in the middle of the pouring pipe 54. . Thus, a circulation path for heating and raising the temperature of the stored water in the hot water storage tank 1 is formed.

前述した加熱器40には、気体又は液体の燃料を供給する燃料用管46が連結してある。また、加熱器40にも給水管50がバルブを介して連結してあり、必要に応じて給水管50から加熱器40内に、原水が供給されるようになっている。更に、加熱器40には排水管が連結してあり、内部水を排水し得るようになっている。   A fuel pipe 46 for supplying gaseous or liquid fuel is connected to the heater 40 described above. Further, a water supply pipe 50 is also connected to the heater 40 via a valve, and raw water is supplied from the water supply pipe 50 into the heater 40 as needed. Further, a drain pipe is connected to the heater 40 so that internal water can be drained.

一方、貯湯槽1の天井部10b中央には、該貯湯槽1内に貯えられた湯水を使用場所へ供給する給湯管51が連結してあり、貯湯槽1内の湯水は内部圧力によって給湯管51内へ吐出される。この給湯管51には、蛇口・シャワーヘッド等に連通する複数の枝管が連結してあり、給湯管51内を通流する湯水は各枝管へ供給される。蛇口・シャワーヘッド等及び前述した枝管が連結する各連結部には、前述した給水管50に連通する枝管も接続してあり、各連結部内で湯水と原水とを混合することによって、所要の温度の湯水を使用し得るようにしてある。   On the other hand, a hot water supply pipe 51 for supplying hot water stored in the hot water storage tank 1 to a place of use is connected to the center of the ceiling 10b of the hot water storage tank 1, and the hot water in the hot water storage tank 1 is heated by the internal pressure. It is discharged into 51. A plurality of branch pipes communicating with a faucet, a shower head, and the like are connected to the hot water supply pipe 51, and hot water flowing through the hot water supply pipe 51 is supplied to each branch pipe. A branch pipe communicating with the above-described water supply pipe 50 is also connected to each connecting portion where the faucet / shower head and the like and the above-mentioned branch pipe are connected. The temperature of hot water can be used.

前記給湯管51は返湯管52に連通しており、該返湯管52は貯湯槽1の本体10aの前記注湯管54の連結位置と対向する位置に固着してある。この返湯管52の中途には返湯用ポンプが介装してあり、返湯管52内の湯水は返湯用ポンプによって貯湯槽1内へ還流される。このように、貯湯槽1内の湯水が給湯管51及び返湯管52によって循環されているため、前述した枝管へ適宜温度の湯水を供給することができる。   The hot water supply pipe 51 communicates with a hot water supply pipe 52, and the hot water supply pipe 52 is fixed to a position of the main body 10a of the hot water storage tank 1 opposite to a position where the hot water supply pipe 54 is connected. A hot water return pump is interposed in the middle of the hot water return pipe 52, and hot water in the hot water return pipe 52 is returned to the hot water storage tank 1 by the hot water return pump. As described above, since the hot water in the hot water storage tank 1 is circulated by the hot water supply pipe 51 and the hot water return pipe 52, hot water at an appropriate temperature can be supplied to the branch pipe described above.

ところで、貯湯槽1の天井部10bには膨張管56の一端が連結してあり、膨張管56の他端は、三叉連結部材を介して、密閉式の膨張タンク60及び排水管に各別に連結してある。そして、貯湯槽1内の湯温上昇による膨張によって溢れた湯水は、膨張管56を通って膨張タンク60内に一時的に貯えられるようになっている。また、膨張管56の中途には逃し弁62が介装してあり、該逃し弁62は、貯湯槽1内が規定圧力になったとき作動して、内部圧力を逃がすようになっている。   By the way, one end of the expansion pipe 56 is connected to the ceiling 10b of the hot water storage tank 1, and the other end of the expansion pipe 56 is separately connected to a closed expansion tank 60 and a drain pipe via a three-pronged connecting member. I have. Hot water overflowing due to expansion due to a rise in hot water temperature in hot water storage tank 1 is temporarily stored in expansion tank 60 through expansion pipe 56. Further, a relief valve 62 is interposed in the middle of the expansion pipe 56, and the relief valve 62 operates when the inside of the hot water tank 1 reaches a specified pressure to release the internal pressure.

一方、貯湯槽1の底部10cには、貯蔵水の温度が所定温度以下になったときオン(又はオフ)するサーモスタット42の検温器43が、該底部10cの壁面を貫通する態様で取り付けてあり、該サーモスタット42がオン(又はオフ)した場合、ポンプ41が作動するようになっている。   On the other hand, a temperature detector 43 of a thermostat 42 that is turned on (or off) when the temperature of the stored water falls below a predetermined temperature is attached to the bottom 10c of the hot water tank 1 so as to penetrate the wall surface of the bottom 10c. When the thermostat 42 is turned on (or turned off), the pump 41 operates.

図2は図1に示した貯湯槽1の縦断面図である。なお、図中、図1に示した部分に対応する部分には、同じ番号を付してその説明を省略する。図2に示した如く、貯湯槽1の天井部10bの中央には、槽内に連通する筒状の給湯口2が突設してあり、該給湯口2には前述した給湯管51(図1参照)が連結されるようになっている。   FIG. 2 is a longitudinal sectional view of the hot water storage tank 1 shown in FIG. In the figure, portions corresponding to the portions shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 2, a cylindrical hot water supply port 2 communicating with the inside of the hot water storage tank 1 is provided at the center of the ceiling 10 b of the hot water storage tank 1. 1) are connected.

一方、貯湯槽1内の天井部10b及び底部10c近傍の位置には、有底筒状の第1上側整流器11及び第1下側整流器12が、それぞれ開口を天井部10b及び底部10cに向けて、その中心軸を貯湯槽1の中心軸と一致させて配設してあり、第1上側整流器11の開口端と天井部10bの内面との間及び第1下側整流器12の開口端と底部10cの内面との間には適宜寸法の間隙がそれぞれ形成してある。   On the other hand, at the position near the ceiling 10b and the bottom 10c in the hot water storage tank 1, the first upper rectifier 11 and the first lower rectifier 12 each having a cylindrical shape with a bottom have openings directed toward the ceiling 10b and the bottom 10c, respectively. The central axis of the hot water tank 1 is aligned with the central axis of the hot water storage tank 1, between the open end of the first upper rectifier 11 and the inner surface of the ceiling 10b, and between the open end of the first lower rectifier 12 and the bottom. A gap having an appropriate size is formed between the inner surface of the substrate 10c.

貯湯槽1の本体10aであって天井部10b近傍の位置には、第1上側整流器11の口径より小さい口径を有し、貯湯槽1を貫通する第1及び第2貫通管25,26が周方向へ対向配置してあり、第1貫通管25には本体10aに設けた注湯口5を介して加熱器40によって加熱・昇温された湯水が通流される注湯管54が、また、第2貫通管26には本体10aに設けた返湯口6を介して返湯管52(共に図1参照)が連結されるようになっている。第1及び第2貫通管25,26の先端部分は、第1上側整流器11の底部近傍の周面をそれぞれ貫通させてあり、両貫通管25,26の先端は斜断して、両貫通管25,26から吐出される水流が互いに衝突した後、第1上側整流器11の底部に衝突するようになしてある。   At a position near the ceiling 10b of the main body 10a of the hot water storage tank 1, first and second penetration pipes 25 and 26 having a diameter smaller than the diameter of the first upper rectifier 11 and penetrating the hot water storage tank 1 are provided. A pouring pipe 54 through which the hot water heated and heated by the heater 40 flows through the pouring port 5 provided in the main body 10a, and A hot water return pipe 52 (both shown in FIG. 1) is connected to the two through pipes 26 via a hot water return port 6 provided in the main body 10a. The distal end portions of the first and second through tubes 25 and 26 penetrate the peripheral surface near the bottom of the first upper rectifier 11, respectively. After the water streams discharged from 25 and 26 collide with each other, they collide with the bottom of the first upper rectifier 11.

一方、貯湯槽1の本体10aであって底部10c近傍の位置には、前同様、第1下側整流器12の口径より小さい口径を有し、貯湯槽1を貫通する第3及び第4貫通管23,24が周方向へ対向配置してあり、第4貫通管24には本体10aに設けた取水口4を介して加熱器40へ取水する取水管53が、また、第3貫通管23には本体10aに設けた給水口3を介して原水を供給する給水管50(共に図1参照)が連結されるようになっている。第3及び第4貫通管23,24の先端部分は、第1下側整流器12の底部近傍の周面をそれぞれ貫通させてあり、両貫通管23,24の先端は第1下側整流器12の底部側に開口が向くように斜断してある。これによって、第3貫通管23から吐出される原水は、その一部が第1下側整流器12の底部に衝突し、残部が第4貫通管23内へ直接的に流入する一方、第4貫通管24には、第3貫通管23から直接的に流入される原水及び第1下側整流器12の底部近傍領域の水が流入する。   On the other hand, the third and fourth penetration pipes having a diameter smaller than the diameter of the first lower rectifier 12 and penetrating through the hot water tank 1 are provided in the main body 10a of the hot water tank 1 and near the bottom 10c as before. 23 and 24 are circumferentially opposed to each other. An intake pipe 53 for taking in water to the heater 40 via an intake port 4 provided in the main body 10 a is provided in the fourth through pipe 24, and the fourth through pipe 24 is provided in the third through pipe 23. Is connected to a water supply pipe 50 (both refer to FIG. 1) for supplying raw water through a water supply port 3 provided in the main body 10a. The tip portions of the third and fourth through tubes 23 and 24 penetrate the peripheral surfaces near the bottom of the first lower rectifier 12, respectively. It is beveled so that the opening faces the bottom. As a result, a part of the raw water discharged from the third through pipe 23 collides with the bottom of the first lower rectifier 12, and the remaining water directly flows into the fourth through pipe 23, while the fourth water flows through the fourth through pipe 23. Raw water directly flowing from the third penetration pipe 23 and water in the region near the bottom of the first lower rectifier 12 flow into the pipe 24.

前述した第1上側整流器11の口径は、当該第1上側整流器11の単位時間当りの通流量が、第1貫通管25又は第2貫通管26の単位時間当りの通流量の1/4〜1/10程度になるようにしてある。これによって、第1貫通管25から吐出される湯水の流速、及び第2貫通管26から吐出される返湯水の流速が共に低下して、第1上側整流器11の開口から給湯口2へ向かって高い温度の湯水が緩やかに流出されるため、貯湯槽1内で対流・撹拌を生じることが可及的に防止され、流出された湯水は貯湯槽1の天井部10bから底部10cへ、順次積層される態様で、即ち、より低温の貯蔵水との界面を保った状態で貯えられて行く。   The diameter of the first upper rectifier 11 is such that the flow rate of the first upper rectifier 11 per unit time is 1/4 to 1 of the flow rate of the first through pipe 25 or the second through pipe 26 per unit time. / 10. Thereby, both the flow rate of the hot water discharged from the first through pipe 25 and the flow rate of the returned hot water discharged from the second through pipe 26 decrease, and the flow rate of the hot water from the opening of the first upper rectifier 11 toward the hot water supply port 2 decreases. Since high-temperature hot water is slowly discharged, convection and agitation in the hot water storage tank 1 are prevented as much as possible, and the discharged hot water is sequentially laminated from the ceiling 10b to the bottom 10c of the hot water storage tank 1. In other words, the water is stored while maintaining the interface with the colder stored water.

更に、第1貫通管25及び第2貫通管26は第1上側整流器11の周方向へ対向配置してあるため、第1上側整流器11内で、第1貫通管25から吐出される湯水の一部と、第2貫通管26から吐出される返湯水の一部とが衝突して、互いに流速が低下すると共に、第1貫通管25から吐出される湯水の残部及び第2貫通管26から吐出される返湯水の残部は、第1上側整流器11の底部に衝突して共に流速が低下するため、第1上側整流器11の開口から流出される湯水はより緩やかになる。また、第1貫通管25から吐出される湯水の温度と、第2貫通管26から吐出される返湯水の温度との間には差があるが、両者は第1上側整流器11内で混合されることによって温度差が解消されるため、温度差による対流の発生を回避することができる。   Furthermore, since the first through-tube 25 and the second through-tube 26 are opposed to each other in the circumferential direction of the first upper rectifier 11, one of the hot and cold water discharged from the first through-tube 25 in the first upper rectifier 11. The portion and the part of the return water discharged from the second through pipe 26 collide with each other, causing the flow rates to decrease, and the remaining of the hot water discharged from the first through pipe 25 and the discharge from the second through pipe 26. The remaining portion of the returned hot water collides with the bottom of the first upper rectifier 11 and the flow velocity thereof is reduced, so that the hot water flowing out from the opening of the first upper rectifier 11 becomes gentler. Although there is a difference between the temperature of the hot water discharged from the first through pipe 25 and the temperature of the hot water discharged from the second through pipe 26, both are mixed in the first upper rectifier 11. This eliminates the temperature difference, so that the occurrence of convection due to the temperature difference can be avoided.

一方、より低温の貯蔵水が、貯湯槽1内の底部10c近傍に配設した第1下側整水器12を介して第4貫通管24へ取水される。このとき、前同様、第1下側整流器12の口径は、当該第1下側整流器12の単位時間当りの通流量が、第3貫通管23又は第4貫通管24の単位時間当りの通流量の1/4〜1/10程度になるようにしてある。これによって、貯蔵水が第1下側整流器12内へ緩やかに流入するため、取水による貯蔵水の対流の発生が可及的に抑制され、相対的に高温の貯蔵水と相対的に低温の貯蔵水との界面を保った状態で、相対的に低温の貯蔵水を採取することができる。   On the other hand, the colder stored water is taken into the fourth penetration pipe 24 via the first lower water regulator 12 disposed near the bottom 10c in the hot water storage tank 1. At this time, as before, the diameter of the first lower rectifier 12 is such that the flow rate of the first lower rectifier 12 per unit time is equal to the flow rate of the third through pipe 23 or the fourth through pipe 24 per unit time. About 1/4 to 1/10. As a result, the stored water slowly flows into the first lower rectifier 12, so that the generation of convection of the stored water due to water intake is suppressed as much as possible, and the relatively high temperature stored water and the relatively low temperature stored water are stored. It is possible to collect relatively low temperature stored water while maintaining the interface with water.

更に、第3貫通管23から吐出される原水の一部が第1下側整流器12内で、直接的に第4貫通管24によって取水されるため、第1下側整流器12を介して貯湯槽1内の底部10c近傍から取水される貯蔵水の量が少なく、従って、取水による貯蔵水の対流の発生が更に抑制されるのに加え、第3貫通管23から第1下側整流器12を介して貯湯槽1内へ直接的に供給される原水の量も低減され、原水の供給による貯蔵水の対流も抑制される。また、第3貫通管23から供給される原水の温度と、貯湯槽1内の底部10c近傍の貯蔵水の温度との間には差があるが、両者は第1下側整流管12内で混合されることによって温度差が低減されるため、温度差による貯蔵水の対流を抑制することができる。   Further, since a part of the raw water discharged from the third through-tube 23 is taken directly by the fourth through-tube 24 in the first lower rectifier 12, the hot water storage tank is provided via the first lower rectifier 12. 1, the amount of stored water taken from near the bottom 10 c is small, so that the generation of convection of the stored water due to the water intake is further suppressed, and in addition, through the first lower rectifier 12 from the third through pipe 23. Thus, the amount of raw water directly supplied into the hot water storage tank 1 is also reduced, and the convection of stored water due to the supply of raw water is also suppressed. Although there is a difference between the temperature of the raw water supplied from the third penetration pipe 23 and the temperature of the stored water near the bottom 10 c in the hot water storage tank 1, both are in the first lower rectifying pipe 12. Since the temperature difference is reduced by the mixing, the convection of the stored water due to the temperature difference can be suppressed.

従って、加熱器40の加熱能力以内で給湯している場合、貯湯槽1内の第1下側整流器12の開口端位置より上方に、65℃以上の高湯水温領域が形成され、貯湯槽1内の第1下側整流器12の開口端位置より下方に、25℃未満の水温領域が形成される。そして、貯湯槽1内の第1下側整流器12の開口端位置に、高湯水温領域と水温領域との界面が形成される。このように、本発明に係る貯湯槽1にあっては、貯湯槽1内のほとんどの領域を高湯水温領域にすることができ、従来と同じ容積の貯湯槽1で有効温度の湯水をより多量に貯蔵することができる。   Therefore, when hot water is supplied within the heating capacity of the heater 40, a high hot water temperature region of 65 ° C. or higher is formed above the open end position of the first lower rectifier 12 in the hot water storage tank 1. A water temperature region of less than 25 ° C. is formed below the open end position of the first lower rectifier 12. Then, an interface between the high hot water temperature region and the water temperature region is formed at the opening end position of the first lower rectifier 12 in the hot water storage tank 1. As described above, in the hot water storage tank 1 according to the present invention, most of the area in the hot water storage tank 1 can be set to the high hot water temperature area, and the hot water storage tank 1 having the same volume as the conventional one can supply a larger amount of hot water at the effective temperature. Can be stored.

一方、このような給湯装置において、加熱器40の加熱能力以上の給湯は次のように実施される。   On the other hand, in such a hot-water supply device, hot-water supply that is higher than the heating capacity of the heater 40 is performed as follows.

図3は、本発明に係る給湯装置において、貯湯槽内の湯水を、加熱器の加熱能力を超えて給湯した場合の貯湯槽内の貯蔵水の温度変化を模式的に示す図面である。なお、図中、図2に示した部分に対応する部分には同じ番号を付してその説明を省略する。   FIG. 3 is a drawing schematically showing a temperature change of the stored water in the hot water tank when the hot water in the hot water tank is supplied with the hot water exceeding the heating capacity of the heater in the hot water supply apparatus according to the present invention. In the figure, parts corresponding to the parts shown in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.

図3(a)に示した如く、給湯開始時にあっては、貯湯槽1内の第1下側整流器12の開口端位置より上方に、65℃以上の高湯水温領域Rhが形成され、貯湯槽1内の第1下側整流器の開口端位置より下方に、25℃未満の水温領域Rwが形成されており、貯湯槽1内の第1下側整流器の開口端位置に、高湯水温領域Rhと水温領域Rwとの界面が形成されている。   As shown in FIG. 3A, at the start of hot water supply, a high hot water temperature region Rh of 65 ° C. or higher is formed above the opening end position of the first lower rectifier 12 in the hot water storage tank 1. 1, a water temperature region Rw of less than 25 ° C. is formed below the opening end position of the first lower rectifier, and a high hot water temperature region Rh is located at the opening end position of the first lower rectifier in the hot water storage tank 1. An interface with the water temperature region Rw is formed.

しかし、加熱器の加熱能力を超えた給湯が続くと、図3(b)に示した如く、貯湯槽1から吐出される給湯量に応じた量の原水が給水口3から貯湯槽1内に供給される一方、加熱器によって加熱・昇温された湯水が注湯口5から槽内へ流入される量が、槽外へ吐出される給湯量より少ないため、高湯水温領域Rhが減少し始めると共に、水温領域Rwが拡大する。   However, if the hot water supply exceeding the heating capacity of the heater continues, as shown in FIG. 3B, the amount of raw water corresponding to the amount of hot water discharged from the hot water storage tank 1 is supplied from the water supply port 3 into the hot water storage tank 1. On the other hand, since the amount of hot water heated and raised by the heater and flowing into the tank from the pouring port 5 is smaller than the amount of hot water discharged out of the tank, the high hot water temperature region Rh starts to decrease and , The water temperature region Rw expands.

更に、加熱器の加熱能力を超えた給湯が続くと、図3(c)、(d)及び(e)に示した如く、高湯水温領域Rhが減少する一方、前述した界面を保持しつつ、水温領域Rwが更に拡大する。しかし、これらの間、高湯水温領域Rhと水温領域Rwとの界面が略保たれた状態で、高湯水温領域Rhが減少するため、有効温度の湯水が供給され続ける。そして、図3(e)に示した如く、貯湯槽1内のほとんどの領域が水温領域Rwとなって、高湯水温領域Rhが消失するまで、有効温度の湯水が供給される。   Further, when the hot water supply exceeding the heating capacity of the heater continues, as shown in FIGS. 3C, 3D, and 3E, the high hot water temperature region Rh decreases, while maintaining the above-described interface. The water temperature region Rw further expands. However, during these times, the high hot water temperature region Rh decreases while the interface between the high hot water temperature region Rh and the water temperature region Rw is substantially maintained, so that the hot water at the effective temperature is continuously supplied. Then, as shown in FIG. 3 (e), most of the area in the hot water storage tank 1 becomes the water temperature area Rw, and hot water at an effective temperature is supplied until the high hot water temperature area Rh disappears.

このように、加熱器の加熱能力を超えた給湯の開始時に、貯湯槽1内のほとんどの領域を占める高湯水温領域Rhの略全量が、有効温度を保った状態で供給されるため、貯湯槽1の容量を従来の貯湯槽と同じ容積にした場合は、有効温度の湯水をより長時間供給することができる。   As described above, at the start of hot water supply exceeding the heating capacity of the heater, substantially the entire amount of the high hot water temperature region Rh occupying most of the area in the hot water storage tank 1 is supplied while maintaining the effective temperature. When the capacity of the tank 1 is the same as that of the conventional hot water storage tank, hot water at an effective temperature can be supplied for a longer time.

図4は、本発明に係る貯湯槽及び従来の貯湯槽を用いて、加熱器の加熱能力以上の給湯を行った場合の給湯水の温度を経時的に測定した結果を示すグラフであり、図中、(a)は図2に示した本発明に係る貯湯槽を用いた場合を、(b)は図5に示した従来の貯湯槽を用いた場合を示している。また、縦軸は給湯温度を、横軸は時間をそれぞれ表している。なお、いずれの場合も、同じ加熱能力を有する給湯装置を用い、2000Lの容量の貯湯槽から120L/分で給湯した。   FIG. 4 is a graph showing the results of measuring the temperature of hot water with the use of the hot water storage tank according to the present invention and the conventional hot water storage tank over time when hot water having a heating capacity equal to or greater than the heating capacity of the heater is used. 2A shows the case where the hot water storage tank according to the present invention shown in FIG. 2 is used, and FIG. 2B shows the case where the conventional hot water storage tank shown in FIG. 5 is used. The vertical axis represents hot water supply temperature and the horizontal axis represents time. In each case, hot water was supplied at a rate of 120 L / min from a 2000 L hot water storage tank using a hot water supply device having the same heating capacity.

図4(b)から明らかな如く、従来の貯湯槽を用いた場合、給湯水の温度は、加熱器の加熱能力以上の給湯を開始してから略9分経過した時点で50℃以下になり、略17分経過した時点で45℃以下になっていた。これに対し、図4(a)から明らかな如く、本発明に係る貯湯槽にあっては、給湯水の温度は、加熱器の加熱能力以上の給湯を開始してから35分経過した時点でも50℃以上であった。   As is clear from FIG. 4 (b), when a conventional hot water storage tank is used, the temperature of the hot water drops to 50 ° C. or less when approximately 9 minutes have passed since the start of hot water supply with the heating capability or higher. After about 17 minutes, the temperature had fallen to 45 ° C. or less. On the other hand, as is clear from FIG. 4 (a), in the hot water storage tank according to the present invention, the temperature of the hot water does not exceed the heating capacity of the heater even when 35 minutes have elapsed since the start of hot water supply. It was 50 ° C or higher.

従って、加熱器の加熱能力以上の給湯を開始してから、有効温度の湯水を供給し続け得る能力が従来の貯湯槽と同程度でよい場合、より小さい容量の貯湯槽を設置することができ、貯湯槽に要する部品コストを低減することができる。   Therefore, if the ability to continuously supply hot water at an effective temperature after starting hot water supply equal to or higher than the heating capacity of the heater can be the same as a conventional hot water tank, a smaller capacity hot water tank can be installed. In addition, component costs required for the hot water storage tank can be reduced.

図5は、実施例2に係る貯湯槽の部分縦断面図であり、横型のものに適用した場合を示している。本実施例の貯湯槽1は、横に配した円筒状の本体20aの両端を部分球形状の側部20b,20bで封止してなる槽本体20を備えており、一方の側部20bには槽内を清掃するための出入口が着脱可能な扉で封止した態様で設けてある。また、貯湯槽1の本体20aの底部には複数の脚部が設けてある。   FIG. 5 is a partial longitudinal sectional view of a hot water storage tank according to the second embodiment, showing a case where the present invention is applied to a horizontal type. The hot water storage tank 1 of this embodiment includes a tank main body 20 in which both ends of a horizontally arranged cylindrical main body 20a are sealed with partially spherical side portions 20b, 20b. Is provided in such a manner that an entrance for cleaning the inside of the tank is sealed with a removable door. A plurality of legs are provided on the bottom of the main body 20a of the hot water storage tank 1.

本体20aの天井部内面中央には、側面視がU字形状であり平面視が横長長方形状の第2上側整流器31が、その長辺を貯湯槽1の長手方向にして固着してあり、該第2上側整流器31及び本体20aの天井部内面によってトンネル状の流路が形成されている。また、本体20aの底部内面中央には、第1上側整流器31と同形の第2下側整流器32が、第2上側整流器31に対向配置してあり、前同様、第2下側整流器32及び本体20aの底部内面によってトンネル状の流路が形成されている。   At the center of the inner surface of the ceiling of the main body 20a, a second upper rectifier 31 having a U-shape in a side view and an oblong rectangular shape in a plan view is fixed with its long side being the longitudinal direction of the hot water storage tank 1, A tunnel-shaped flow path is formed by the second upper rectifier 31 and the inner surface of the ceiling of the main body 20a. Further, a second lower rectifier 32 having the same shape as the first upper rectifier 31 is disposed opposite to the second upper rectifier 31 at the center of the bottom inner surface of the main body 20a. A tunnel-like flow path is formed by the bottom inner surface of 20a.

本体20aの天井部外面中央には、前記第2上側整流器31内に連通する筒状をなし、図1に示した給湯管51が連結する給湯口2が立設してあり、該給湯口2の両側には、共に前同様、第2上側整流器31内に連通する筒状をなし、図1に示した返湯管52が連結する返湯口6、及び加熱器40によって加熱された湯水が通流する注湯管54が連結する注湯口5が、前記給湯口2と一列になるように互いに適宜の距離を隔てて配設してある。そして、第2上側整流器31の内寸は、これによって形成される流路の単位時間当りの流量が、注湯口2又は返湯口6から第2上側整流器31内に流入される単位時間当りの流量の1/4〜1/10程度になるようにしてある。   At the center of the outer surface of the ceiling of the main body 20a, a hot water supply port 2 to which the hot water supply pipe 51 shown in FIG. As before, both sides have a tubular shape communicating with the inside of the second upper rectifier 31 and a hot water port 6 to which the hot water pipe 52 shown in FIG. 1 is connected, and hot water heated by the heater 40. The pouring ports 5 to which the flowing pouring pipes 54 are connected are arranged at an appropriate distance from each other so as to be in line with the hot water supply port 2. The internal size of the second upper rectifier 31 is determined by the flow rate per unit time of the flow path formed by the flow rate per unit time, which flows into the second upper rectifier 31 from the pouring port 2 or the return port 6. About 1/4 to 1/10.

一方、本体20aの底部外面中央には、前記第2下側整流器32内に連通する筒状をなし、図1に示した原水を供給する給水管50が連結する給水口3が垂設してあり、該給水口3から適宜距離を隔てて、前同様第2下側整流器32内に連通する筒状をなし、図1に示した取水管53が連結する取水口4が垂設してある。そして、第2下側整流器32の内寸は、これによって形成される流路の単位時間当りの流量が、給水口3から第2下側整流器32内に流入される単位時間当りの流量の1/4〜1/10程度になるようにしてある。   On the other hand, at the center of the bottom outer surface of the main body 20a, a water supply port 3 which is formed in a tubular shape communicating with the inside of the second lower rectifier 32 and to which a water supply pipe 50 for supplying raw water shown in FIG. A water inlet 4 is provided at an appropriate distance from the water inlet 3 and communicates with the second lower rectifier 32 as before, and a water inlet 4 to which the water intake pipe 53 shown in FIG. . The inner size of the second lower rectifier 32 is such that the flow rate per unit time of the flow path formed thereby is one of the flow rate per unit time flowing into the second lower rectifier 32 from the water supply port 3. It is set to be about 4 to 1/10.

また、本体20aの底部には、前述した検温器43が取り付けてあり、該検温器43は本体20aの底部を貫通して、その先端が僅かに貯湯槽1内に突出するようにしてある。   The above-mentioned temperature detector 43 is attached to the bottom of the main body 20a, and the temperature detector 43 penetrates through the bottom of the main body 20a so that its tip slightly projects into the hot water storage tank 1.

このような貯湯槽1にあっては、返湯口6及び注湯口5から第2上側整流器31内に吐出される湯水の流速が共に低下して、第2上側整流器31の両開口から、本体20a内の天井部近傍の領域に、貯湯槽1の長手方向へ向かって高い温度の湯水が緩やかに流出されるため、貯湯槽1内で対流を生じることが可及的に防止され、流出された湯水は貯湯槽1の天井部から底部へ、順次積層される態様で、即ち、より低温の貯蔵水との界面を保った状態で貯えられて行く。また、注湯口5から吐出される湯水の温度と、返湯口6から吐出される返湯水の温度との間には差があるが、両者は第2上側整流器31内で混合されることによって温度差が解消されるため、温度差による対流の発生を回避することができる。   In such a hot water storage tank 1, the flow rate of hot water discharged from the hot water return port 6 and the pouring port 5 into the second upper rectifier 31 is decreased, and the main body 20 a is discharged from both openings of the second upper rectifier 31. Since hot water having a high temperature is gradually discharged toward the longitudinal direction of the hot water storage tank 1 into a region near the ceiling portion inside the hot water storage tank 1, convection in the hot water storage tank 1 is prevented as much as possible and the hot water is discharged. Hot water is stored in a manner of being sequentially stacked from the ceiling to the bottom of the hot water storage tank 1, that is, while maintaining an interface with colder stored water. Further, although there is a difference between the temperature of the hot water discharged from the pouring port 5 and the temperature of the hot water discharged from the hot water port 6, the two are mixed in the second upper rectifier 31 so that the temperature is lowered. Since the difference is eliminated, the occurrence of convection due to the temperature difference can be avoided.

一方、給水口3から第2下側整流器32内に吐出される湯水の流速が低下して、第2下側整流器32の両開口から、本体20a内の底部近傍の領域に、貯湯槽1の長手方向へ向かって低い温度の水が緩やかに流出されるため、貯湯槽1内で対流を生じることが可及的に防止され、流出された水は本体20a内の底部近傍の領域に留まる。しかも、給水口3の近傍に取水口4が配置してあり、給水口3から第2下側整流器32内へ吐出された原水の一部が直接的に取水口4内へ流入するため、第2下側整流器32を介して貯湯槽1内の底部近傍から取水される貯蔵水の量が少なく、従って、取水による貯蔵水の対流の発生が更に抑制されるのに加え、給水口3から第2下側整流器32を介して貯湯槽1内へ直接的に供給される原水の量も低減され、原水の供給による貯蔵水の対流も抑制される。また、給水口3から供給される原水の温度と、貯湯槽1内の底部近傍の貯蔵水の温度との間には差があるが、両者は第2下側整流管32内で混合されることによって温度差が低減されるため、温度差による貯蔵水の対流を抑制することができる。   On the other hand, the flow rate of the hot water discharged from the water supply port 3 into the second lower rectifier 32 decreases, and the hot water tank 1 is moved from both openings of the second lower rectifier 32 to a region near the bottom inside the main body 20a. Since water having a low temperature is gradually discharged in the longitudinal direction, convection in the hot water storage tank 1 is prevented as much as possible, and the discharged water remains in a region near the bottom in the main body 20a. In addition, the water intake 4 is disposed near the water inlet 3, and a part of the raw water discharged from the water inlet 3 into the second lower rectifier 32 flows directly into the water intake 4. (2) The amount of stored water taken from near the bottom of the hot water storage tank 1 via the lower rectifier 32 is small, so that the generation of convection of the stored water due to the water intake is further suppressed, and (2) The amount of raw water directly supplied into the hot water storage tank 1 via the lower rectifier 32 is also reduced, and convection of stored water due to the supply of raw water is also suppressed. Although there is a difference between the temperature of the raw water supplied from the water supply port 3 and the temperature of the stored water near the bottom in the hot water storage tank 1, both are mixed in the second lower straightening pipe 32. Since the temperature difference is thereby reduced, convection of the stored water due to the temperature difference can be suppressed.

従って、加熱器40(図1参照)の加熱能力以内で給湯している場合、貯湯槽1内の底部を除く略全領域に、65℃以上の高湯水温領域が形成され、僅かに貯湯槽1内の底部に、25℃未満の水温領域が形成され、両者の界面が形成される。一方、加熱器40(図1参照)の加熱能力以上の給湯が負荷された場合、前記界面が略保たれた状態で高湯水温領域の湯水が給湯口2から給湯されるため、高湯水温領域の湯水が略全量、貯湯槽1から吐出されるまで、有効温度の湯水が供給され続ける。   Therefore, when hot water is supplied within the heating capacity of the heater 40 (see FIG. 1), a high hot water temperature region of 65 ° C. or higher is formed in almost the entire region except the bottom in the hot water storage tank 1, and the hot water storage tank 1 is slightly heated. A water temperature region of less than 25 ° C. is formed at the bottom of the inside, and an interface between them is formed. On the other hand, when hot water having a heating capacity equal to or higher than the heating capacity of the heater 40 (see FIG. 1) is applied, hot water in the high hot water temperature area is supplied from the hot water supply port 2 while the interface is substantially maintained. Until substantially all of the hot water is discharged from the hot water storage tank 1, hot water at an effective temperature is continuously supplied.

なお、本実施例では、トンネル状の第2上側整流器31及び第2下側整流器32を配設してあるが、本発明はこれに限らず、給湯口2、返湯口6及び注湯口5の近傍に板状部材を対向配置してなる第2上側整流部材、及び給水口3及び取水口4の近傍に板状部材を対向配置してなる第2下側整流部材を配設してもよい。   In the present embodiment, the tunnel-shaped second upper rectifier 31 and the second lower rectifier 32 are provided. However, the present invention is not limited to this, and the hot water supply port 2, the hot water supply port 6, and the pouring port 5 may be provided. A second upper rectifying member having a plate-shaped member disposed in the vicinity thereof and a second lower rectifying member having the plate-shaped member disposed in the vicinity of the water supply port 3 and the water intake port 4 may be provided. .

図6は、実施例3に係る給湯装置の構成を示す模式図であり、有効温度の湯水の貯蔵容量を可変にしてある。なお、図中、図1に示した部分に対応する部分には同じ番号を付して、その説明を省略する。   FIG. 6 is a schematic diagram illustrating the configuration of the hot water supply apparatus according to the third embodiment, in which the storage capacity of hot water at an effective temperature is variable. In the figure, parts corresponding to the parts shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

図6に示した如く、本実施例にあっては、貯湯槽1の底部10cに取付けた検温器43とは別に、当該検温器43より高い位置である本体10aに、貯湯槽1内の湯水の温度を検出する1又は複数の(図8にあっては2つ)の第2検温器44及び第3検温器45が高さ方向へ位置を異ならせて取り付けてあり、検温器43、第2検温器44及び第3検温器45が検出し湯水の温度は、ポンプ41のオン・オフを制御すべく前述したサーモスタット42(図1参照)を内蔵する制御盤35に与えられるようになっている。   As shown in FIG. 6, in the present embodiment, separately from the temperature detector 43 attached to the bottom 10 c of the hot water tank 1, the hot water in the hot water tank 1 is placed on the main body 10 a at a position higher than the temperature detector 43. One or a plurality of (two in FIG. 8) second temperature detectors 44 and third temperature detectors 45 for detecting the temperature are mounted at different positions in the height direction. The temperature of the hot and cold water detected by the second temperature detector 44 and the third temperature detector 45 is supplied to the control panel 35 having the above-described thermostat 42 (see FIG. 1) for controlling on / off of the pump 41. I have.

図7は、図6に示した制御盤35の構成例を示す模式的正面図である。制御盤35には、当該制御盤35への電力の供給/停止を切り替える電源スイッチ351が設けてあり、更に、現時刻を表示する時計352が設けてある。また、前述した検温器43、第2検温器44及び第3検温器45が検出し湯水の温度を表示する複数(図7では3つ)の温度表示器359,359,359も設けてある。   FIG. 7 is a schematic front view showing a configuration example of the control panel 35 shown in FIG. The control panel 35 is provided with a power switch 351 for switching supply / stop of electric power to the control panel 35, and further provided with a clock 352 for displaying the current time. Further, a plurality of (three in FIG. 7) temperature indicators 359, 359, 359 for detecting the temperature of hot water detected by the above-mentioned temperature sensor 43, the second temperature sensor 44 and the third temperature sensor 45 are also provided.

制御盤35には、第3検温器45の検温結果による制御を中断して、第3検温器45より下側に取付けた第2検温器44の検温結果による制御を開始する時刻を設定する第1時刻設定器353、及び第2検温器44の検温結果によるによる制御を中断して、第3検温器45の検温結果による制御を開始する時刻を設定する第2時刻設定器354を備えるタイマ357が設けてあり、タイマ357には、設定した時刻をセットするセットボタン355、及びセットした時刻を解除するリセットボタン356等も設けてある。   The control panel 35 interrupts the control based on the result of the temperature measurement of the third temperature detector 45 and sets a time at which the control based on the result of the temperature measurement of the second temperature detector 44 attached below the third temperature detector 45 is started. A timer 357 including a one-time setting unit 353 and a second time setting unit 354 for interrupting the control based on the temperature detection result of the second temperature detector 44 and setting the time at which the control based on the temperature detection result of the third temperature detector 45 is started. The timer 357 is provided with a set button 355 for setting a set time, a reset button 356 for canceling the set time, and the like.

なお、本実施例では、第1時刻設定器353は、第3検温器45の検温結果によるによる制御を中断して、第2検温器44の検温結果による制御を開始する時刻を設定するようにしてあり、第2時刻設定器354は、第2検温器44の検温結果によるによる制御を中断して、第3検温器45の検温結果による制御を開始する時刻を設定するようにしてあるが、本発明はこれに限らず、それらと反対、即ち、第1時刻設定器353は、第2検温器44の検温結果によるによる制御を中断して、第3検温器45の検温結果による制御を開始する時刻を設定するようにし、第2時刻設定器354は、第3検温器45の検温結果によるによる制御を中断して、第2検温器44の検温結果による制御を開始する時刻を設定するようにしてもよい。また、第1時刻設定器353及び/若しくは第2時刻設定器354に代えて、又は第1時刻設定器353及び第2時刻設定器354に加えて、前述した検温器43の検温結果による制御を開始する時刻を設定する他の時刻設定器を設けるようにしてもよい。   In the present embodiment, the first time setting unit 353 interrupts the control based on the temperature detection result of the third temperature detector 45 and sets the time at which the control based on the temperature detection result of the second temperature detector 44 starts. The second time setting device 354 interrupts the control based on the temperature measurement result of the second temperature detector 44 and sets the time at which the control based on the temperature measurement result of the third temperature detector 45 starts. The present invention is not limited to this, but the opposite, that is, the first time setting device 353 interrupts the control based on the temperature detection result of the second temperature detector 44 and starts the control based on the temperature detection result of the third temperature detector 45. The second time setter 354 interrupts the control based on the temperature detection result of the third temperature detector 45 and sets the time at which the control based on the temperature detection result of the second temperature detector 44 starts. It may be. In addition, instead of the first time setting device 353 and / or the second time setting device 354, or in addition to the first time setting device 353 and the second time setting device 354, the control based on the temperature detection result of the temperature detector 43 described above is performed. Another time setting device for setting the start time may be provided.

また、制御盤35には、切替スイッチ400が回動可能に取り付けてあり、該切替スイッチ400によって、検温器43の検温結果による制御を行う第1位置(「最下」)401、第2検温器44の検温結果によるによる制御を行う第2位置(「下」)402、第3検温器45の検温結果による制御を行う第3位置(「上」)403、タイマ357の設定時間で制御対象の検温器を変更する第4位置(「タイマ」)404に切り替えることができるようになっている。   Further, a changeover switch 400 is rotatably mounted on the control panel 35, and the changeover switch 400 controls the first position (“bottom”) 401 for performing control based on the temperature detection result of the temperature detector 43, and the second temperature detection. Position (“down”) 402 for performing control based on the temperature detection result of the heater 44, a third position (“up”) 403 for performing control based on the temperature detection result of the third temperature detector 45, and a control target based on the set time of the timer 357. Can be switched to a fourth position (“timer”) 404 for changing the temperature detector.

このような制御盤35にあっては、切替スイッチ400が、第1位置401から第3位置403のいずれかに切り替えられた場合、対応する検温器43〜45の検温値が所定温度以下になったとき、内蔵するサーモスタットがオン(又はオフ)して、ポンプ41を作動させる。   In such a control panel 35, when the changeover switch 400 is switched from the first position 401 to any one of the third positions 403, the temperature detection values of the corresponding temperature detectors 43 to 45 become lower than a predetermined temperature. Then, the built-in thermostat is turned on (or off), and the pump 41 is operated.

一方、制御盤35は、切替スイッチ400が第4位置404に切り替えられた場合、タイマ357で設定された時刻と時計352が計測した時刻とが一致したとき、対応する第2検温器44又は第3検温器45の検温値が入力されるように切り替え、入力された検温値が所定温度以下になったとき、内蔵するサーモスタットがオン(又はオフ)して、ポンプ41を作動させる。   On the other hand, when the changeover switch 400 is switched to the fourth position 404, when the time set by the timer 357 matches the time measured by the clock 352, the control panel 35 determines whether the corresponding second temperature detector 44 or the second Switching is performed so that the temperature detection value of the third temperature detector 45 is input. When the input temperature detection value falls below a predetermined temperature, the built-in thermostat is turned on (or off), and the pump 41 is operated.

ところで、給湯装置を設置する施設、例えば銭湯にあっては、営業時間帯内で湯水の使用量が変動するため、その変動に応じて、湯水の使用量が少ない時間帯では、貯湯槽1内において、有効温度の湯水の貯蔵容量を小さくし、湯水の使用量が多い時間帯では、貯湯槽1内において、有効温度の湯水の貯蔵容量を大きくするようにすれば、原水の加熱に要する燃料コストを可及的に低減することができ、給湯装置のランニングコストを小さくすることができる。   By the way, in a facility where a hot water supply device is installed, for example, in a public bath, the amount of hot water used fluctuates during business hours. In the hot water tank 1, when the storage capacity of the hot water is reduced and the storage capacity of the hot water is increased in the hot water storage tank 1 during a time period when the amount of the hot water is large, the fuel required for heating the raw water can be obtained. The cost can be reduced as much as possible, and the running cost of the water heater can be reduced.

本実施例に係る給湯装置にあっては、前述した如く貯湯槽1内で高湯水温領域と水温領域との界面を維持した状態で給湯、取水及び給水を行うことができるのに加え、検温器43〜45及び切替スイッチ400を設けてなる制御盤35を備えるため、切替スイッチ400が、第1位置401から第3位置403のいずれかに切り替えることによって、貯湯槽1に貯蔵される有効温度の湯水の容量は、貯湯槽1の天井部10bから対応する検温器43〜45が取り付けられた高さ位置までの容量にそれぞれ変更させることができる。   The hot water supply apparatus according to the present embodiment can perform hot water supply, water intake, and water supply while maintaining the interface between the high hot water temperature region and the water temperature region in the hot water storage tank 1 as described above. Since the control panel 35 provided with 43 to 45 and the changeover switch 400 is provided, the changeover switch 400 switches from the first position 401 to any one of the third position 403 to thereby determine the effective temperature stored in the hot water storage tank 1. The capacity of the hot water can be changed from the ceiling 10b of the hot water storage tank 1 to the height at which the corresponding temperature detectors 43 to 45 are attached.

従って、前記施設において、湯水の使用量が多い時間帯では、管理者が切替スイッチ400を第1位置401又は第2位置402に切り替えることによって、貯湯槽1に貯蔵される有効温度の湯水の容量を大きくし、湯水の使用量が少ない時間帯では、管理者が切替スイッチ400を第2位置402又は第3位置403に切り替えることによって、貯湯槽1に貯蔵される有効温度の湯水の容量を小さくすることができる。一方、管理者が予め切替スイッチ400を第4位置404に切り替えておいた場合、タイマ357でセットした時刻に応じて、貯湯槽1に貯蔵される有効温度の湯水の容量を大小変更することができる。   Therefore, in the facility, in a time period when the amount of hot water used is large, the administrator switches the changeover switch 400 to the first position 401 or the second position 402 so that the capacity of the effective temperature hot water stored in the hot water tank 1 is changed. Is increased, and in a time period when the amount of hot water is small, the administrator switches the changeover switch 400 to the second position 402 or the third position 403, so that the capacity of the hot water stored in the hot water storage tank 1 is reduced. can do. On the other hand, if the administrator has previously switched the changeover switch 400 to the fourth position 404, the capacity of the effective temperature water stored in the hot water storage tank 1 may be changed according to the time set by the timer 357. it can.

ところで、このような貯湯槽1に貯蔵すべき有効温度の湯水の容量の変動は、営業時間帯内のみならず、季節によっても生じる。即ち、冬季では、原水の温度が低いため、適宜量の高温の湯水に少量の原水を混合することで所要量の適温の湯水にすることができ、従って相対的に湯水の使用量が増大して、貯湯槽1から吐出される給湯量が多い。一方、夏季では、原水の温度が高いため、少量の高温の湯水でも原水を混合させることで所要量の適温の湯水を得ることができ、従って相対的に湯水の使用量が減少し、貯湯槽1から吐出される給湯量が少ない。そこで、本実施例に係る給湯装置では、前同様、手動で、貯湯槽1に貯蔵される有効温度の湯水の容量を切り替えることができるのに加え、原水の温度に基づいて自動で、貯湯槽1に貯蔵される有効温度の湯水の容量を切り替えることができるようにしてある。   By the way, such a change in the capacity of the hot water at the effective temperature to be stored in the hot water storage tank 1 occurs not only during the business hours but also according to the season. That is, in the winter season, since the temperature of raw water is low, it is possible to obtain a required amount of hot water by mixing a small amount of raw water with an appropriate amount of high-temperature hot water, so that the amount of hot water used is relatively increased. Therefore, the amount of hot water supplied from hot water storage tank 1 is large. On the other hand, in the summer, since the temperature of raw water is high, even a small amount of high-temperature hot water can be mixed with raw water to obtain a required amount of hot water at a required temperature. The amount of hot water supplied from 1 is small. Therefore, in the hot water supply apparatus according to the present embodiment, as before, the capacity of the hot water stored in the hot water storage tank 1 can be manually switched, and in addition, the hot water storage tank is automatically controlled based on the temperature of the raw water. The capacity of the hot and cold water stored at 1 can be switched.

図8は、実施例4に係る給湯装置の構成を示す模式図であり、図9は、図8に示した制御盤35aの構成例を示す模式的正面図である。なお、両図中、図6及び図7に示した部分に対応する部分には同じ番号を付してその説明の一部又は全部を省略する。   FIG. 8 is a schematic diagram illustrating a configuration of a hot water supply device according to a fourth embodiment, and FIG. 9 is a schematic front view illustrating a configuration example of a control panel 35a illustrated in FIG. In both figures, portions corresponding to the portions shown in FIGS. 6 and 7 are denoted by the same reference numerals, and a part or all of the description thereof will be omitted.

図8及び図9に示した如く、本実施例に係る給湯装置にあっては、貯湯槽1における原水の給水口又は原水の給水管50の適宜位置に原水の温度を検出する原水用検温器49が配設してあり、原水用検温器49が検出した原水の温度は、制御盤35aに与えられるようになっている。   As shown in FIGS. 8 and 9, in the hot water supply apparatus according to the present embodiment, the raw water temperature sensor for detecting the temperature of the raw water at an appropriate position of the raw water supply port or the raw water supply pipe 50 in the hot water storage tank 1. 49 is provided, and the temperature of the raw water detected by the raw water temperature detector 49 is provided to the control panel 35a.

制御盤35aには基準温度を設定するための温度設定器358が設けてあり、温度設定器358によって適宜の基準温度を設定し得るようになっている。また、制御盤35aには、切替スイッチ400が回動可能に取り付けてあり、該切替スイッチ400によって、検温器43の検温結果による制御を行う第1位置(「最大」)401、第2検温器44の検温結果によるによる制御を行う第2位置(「冬」)402、第3検温器45の検温結果による制御を行う第3位置(「夏」)403、原水用検温器49の検出値に基づいて制御対象の検温器を変更する第4位置(「自動」)404に切り替えることができるようになっている。   The control panel 35a is provided with a temperature setting device 358 for setting a reference temperature, and the temperature setting device 358 can set an appropriate reference temperature. Further, a changeover switch 400 is rotatably attached to the control panel 35a, and the changeover switch 400 controls a first position (“maximum”) 401 for performing control based on a temperature detection result of the temperature detector 43, and a second temperature detector. The second position (“winter”) 402 for performing control based on the temperature detection result of 44, the third position (“summer”) 403 for performing control based on the temperature detection result of the third temperature detector 45, and the detection value of the raw water temperature detector 49 It is possible to switch to a fourth position (“automatic”) 404 at which the temperature detector to be controlled is changed based on this.

このような制御盤35aにあっては、切替スイッチ400が、第1位置401から第3位置403のいずれかに切り替えられた場合、対応する検温器43〜45の検温値が所定温度以下になったとき、内蔵するサーモスタットがオン(又はオフ)して、ポンプ41を作動させる。   In such a control panel 35a, when the changeover switch 400 is switched from the first position 401 to any one of the third positions 403, the temperature detection values of the corresponding temperature detectors 43 to 45 become lower than the predetermined temperature. Then, the built-in thermostat is turned on (or off), and the pump 41 is operated.

一方、制御盤35aは、切替スイッチ400が第4位置404に切り替えられた場合、原水用検温器49が検出した原水の温度が温度設定器358で設定された基準温度以下のとき、第2検温器44の検温値が入力されるように切り替え、原水用検温器49が検出した原水の温度が温度設定器358で設定された基準温度を超えたとき、第3検温器45の検温値が入力されるように切り替え、入力された検温値が所定温度以下になったとき、内蔵するサーモスタットがオン(又はオフ)して、ポンプ41を作動させる。   On the other hand, when the changeover switch 400 is switched to the fourth position 404, when the temperature of the raw water detected by the raw water temperature sensor 49 is equal to or lower than the reference temperature set by the temperature setting device 358, the control panel 35a When the temperature of the raw water detected by the raw water temperature detector 49 exceeds the reference temperature set by the temperature setting device 358, the temperature detection value of the third temperature detector 45 is input. When the input temperature detection value falls below a predetermined temperature, the built-in thermostat is turned on (or off) and the pump 41 is operated.

これによって、原水の温度が高い夏季では、第3検温器45の検温値に基づいてポンプ41を作動制御が実施されるため、貯湯槽1に貯蔵される有効温度の湯水の容量を小さくすることができ、原水の温度が低い冬季では、第2検温器44の検温値に基づいてポンプ41を作動制御が実施されるため、貯湯槽1に貯蔵される有効温度の湯水の容量を大きくすることができる。   Accordingly, in summer when the temperature of the raw water is high, the operation control of the pump 41 is performed based on the temperature measurement value of the third temperature detector 45, so that the capacity of the effective temperature water stored in the hot water storage tank 1 is reduced. In winter, when the temperature of the raw water is low, the operation of the pump 41 is controlled based on the temperature measured by the second temperature detector 44. Therefore, the capacity of the effective temperature water stored in the hot water storage tank 1 should be increased. Can be.

本発明に係る給湯装置の構成を示す模式図である。It is a mimetic diagram showing composition of a hot water supply device concerning the present invention. 図1に示した貯湯槽の縦断面図である。It is a longitudinal cross-sectional view of the hot water storage tank shown in FIG. 本発明に係る給湯装置において、貯湯槽内の湯水を、加熱器の加熱能力を超えて給湯した場合の貯湯槽内の貯蔵水の温度変化を模式的に示す図面である。4 is a drawing schematically showing a temperature change of stored water in the hot water storage tank when hot water in the hot water storage tank is supplied with the hot water exceeding the heating capacity of the heater in the hot water supply apparatus according to the present invention. 本発明に係る貯湯槽及び従来の貯湯槽を用いて、加熱器の加熱能力以上の給湯を行った場合の給湯水の温度を経時的に測定した結果を示すグラフである。It is a graph which shows the result of having measured the temperature of hot-water supply water at the time of performing hot water supply more than the heating capacity of a heater using the hot-water storage tank which concerns on this invention, and the conventional hot-water storage tank with time. 実施例2に係る貯湯槽の部分縦断面図である。FIG. 7 is a partial vertical sectional view of a hot water tank according to a second embodiment. 実施例3に係る給湯装置の構成を示す模式図である。FIG. 9 is a schematic diagram illustrating a configuration of a hot water supply device according to a third embodiment. 図6に示した制御盤の構成例を示す模式的正面図である。FIG. 7 is a schematic front view illustrating a configuration example of a control panel illustrated in FIG. 6. 実施例4に係る給湯装置の構成を示す模式図である。FIG. 13 is a schematic diagram illustrating a configuration of a hot water supply device according to a fourth embodiment. 図8に示した制御盤の構成例を示す模式的正面図である。FIG. 9 is a schematic front view illustrating a configuration example of a control panel illustrated in FIG. 8. 従来の給湯装置の構成を示す模式図である。It is a schematic diagram which shows the structure of the conventional water heater. 図10に示した貯湯槽の縦断面図である。It is a longitudinal cross-sectional view of the hot water storage tank shown in FIG. 従来の貯湯槽内の湯水を、加熱器の加熱能力を超えて給湯した場合の貯湯槽内の貯蔵水の温度変化を模式的に示す図面である。It is a figure which shows typically the temperature change of the stored water in a hot-water storage tank when hot water in a conventional hot-water storage tank is supplied more than the heating capacity of a heater.

符号の説明Explanation of reference numerals

1 貯湯槽
2 給湯口
3 給水口
4 取水口
5 注湯口
6 返湯口
10 槽本体
10a 本体
10b 天井部
10c 底部
11 第1上側整流器
12 第1下側整流器
20 槽本体
20a 本体
20b 側部
23 第3貫通管
24 第4貫通管
25 第1貫通管
26 第2貫通管
31 第2上側整流器
32 第2下側整流器
35 制御盤
40 加熱器
41 ポンプ
42 サーモスタット
43 検温器
44 第2検温器
45 第3検温器
49 原水用検温器
50 給水管
51 給湯管
52 返湯管
53 取水管
54 注湯管
REFERENCE SIGNS LIST 1 hot water storage tank 2 hot water supply port 3 water supply port 4 water intake port 5 pouring port 6 return port 10 tank body 10a body 10b ceiling section 10c bottom section 11 first upper rectifier 12 first lower rectifier 20 tank body 20a body 20b side section 23 third Penetrating pipe 24 Fourth penetrating pipe 25 First penetrating pipe 26 Second penetrating pipe 31 Second upper rectifier 32 Second lower rectifier 35 Control panel 40 Heater 41 Pump 42 Thermostat 43 Thermometer 44 Second thermometer 45 Third thermometer Container 49 Raw water temperature detector 50 Water supply pipe 51 Hot water supply pipe 52 Hot water return pipe 53 Intake pipe 54 Injection pipe

Claims (15)

湯水を貯える殻状の槽本体に、槽本体の内外を連通する複数の連通口が設けてある貯湯槽において、
前記槽本体の天井側に、1又は複数の第1連通口が配設してあり、前記槽本体の底部側に、1又は複数の第2連通口が配設してあり、前記槽本体内の天井又はその近傍に、前記第1連通口から注入される湯を、減速させつつ槽本体の天井へ導く上側整流部材が配置してあり、前記槽本体内の底部又はその近傍に、前記第2連通口から供給される原水を、減速させつつ槽本体の底部へ導く下側整流部材が配置してあることを特徴とする貯湯槽。
In a hot water storage tank in which a plurality of communication ports communicating between the inside and outside of the tank body are provided in a shell-shaped tank body for storing hot water,
One or more first communication ports are provided on the ceiling side of the tank body, and one or more second communication ports are provided on the bottom side of the tank body. An upper rectifying member that guides the hot water injected from the first communication port to the ceiling of the tank body while decelerating the hot water injected from the first communication port is disposed at or near the ceiling of the tank. A hot water storage tank, wherein a lower rectifying member for guiding raw water supplied from the two communication ports to the bottom of the tank main body while decelerating is disposed.
前記上側整流部材内の流路の断面面積は、前記第1連通口から注入される湯の流路の断面面積より大きく、前記下側整流部材内の流路の断面面積は、前記第2連通路から供給される原水の流路の断面面積より大きい請求項1記載の貯湯槽。   The cross-sectional area of the flow path in the upper rectifying member is larger than the cross-sectional area of the flow path of the hot water injected from the first communication port, and the cross-sectional area of the flow path in the lower rectifying member is the second cross-sectional area. The hot water storage tank according to claim 1, wherein the cross-sectional area of the raw water supplied from the passage is larger than a cross-sectional area of the flow passage. 湯水を貯える殻状の槽本体に、外部へ湯水を供給する給湯口、内部へ湯を注入する注湯口、内部へ原水を供給する給水口、及び内部から取水する取水口が設けてある貯湯槽において、
前記給湯口は槽本体の天井に配設してあり、前記注湯口は槽本体の天井側に配設してあり、前記給水口及び取水口は槽本体の底部側に配設してあり、前記槽本体内の天井又はその近傍に、前記注湯口から注入される湯を、減速させつつ槽本体の天井へ導く上側整流部材が配置してあり、前記槽本体内の底部又はその近傍に、給水口から供給される原水を、減速させつつ槽本体の底部へ導く下側整流部材が配置してあることを特徴とする貯湯槽。
A hot water tank with a hot water supply port for supplying hot water to the outside, a pouring port for pouring hot water into the inside, a water supply port for supplying raw water to the inside, and a water intake port for taking water from the inside of the shell-shaped tank body for storing hot water At
The hot water supply port is provided on the ceiling of the tank body, the pouring port is provided on the ceiling side of the tank body, the water supply port and the water intake port are provided on the bottom side of the tank body, On the ceiling or in the vicinity of the inside of the tank body, an upper straightening member for guiding the hot water injected from the pouring port to the ceiling of the tank body while decelerating is arranged, and at the bottom or in the vicinity of the bottom inside the tank body, A hot water storage tank, wherein a lower rectifying member that guides raw water supplied from a water supply port to a bottom portion of the tank body while decelerating the water is disposed.
前記上側整流部材内の流路の断面面積は、前記注湯口の断面面積より大きく、前記下側整流部材内の流路の断面面積は、前記給水口の断面面積より大きい請求項3記載の貯湯槽。   The hot water storage according to claim 3, wherein a cross-sectional area of the flow path in the upper rectifying member is larger than a cross-sectional area of the pouring port, and a cross-sectional area of the flow path in the lower rectifying member is larger than a cross-sectional area of the water supply port. Tank. 前記注湯口から注入される湯は、上側整流部材の内面に衝突して進行方向が天井へ変更されるようにしてあり、給水口から供給される原水は、下側整流部材の内面に衝突して進行方向が底部へ変更されるようにしてある請求項4記載の貯湯槽。   Hot water injected from the pouring port collides with the inner surface of the upper rectifying member so that the traveling direction is changed to the ceiling, and raw water supplied from the water supply port collides with the inner surface of the lower rectifying member. 5. The hot water storage tank according to claim 4, wherein the traveling direction is changed to the bottom. 前記取水口は下側整流部材の流路中から取水するようにしてある請求項3から5のいずれかに記載の貯湯槽。   The hot water storage tank according to any one of claims 3 to 5, wherein the water intake port is configured to take water from a flow path of the lower rectifying member. 前記槽本体には、前記給湯口から外部へ供給した湯水を内部へ返送するための返湯口が、前記上側整流部材内へ返湯するように設けてある請求項3から6のいずれかに記載の貯湯槽。   The hot water supply port for returning hot water supplied from the hot water supply port to the outside is provided in the tank main body so as to return hot water into the upper rectifying member. Hot water tank. 湯水を貯える竪型殻状の槽本体に、外部へ湯水を供給する給湯口、内部へ湯を注入する注湯口、内部へ原水を供給する給水口、内部から取水する取水口、及び前記給湯口から外部へ供給した湯水を内部へ返送するための返湯口が設けてある貯湯槽において、
前記給湯口は槽本体の天井に配設してあり、前記注湯口及び返湯口は槽本体の天井側に配設してあり、前記給水口及び取水口は槽本体の底部側に配設してあり、
前記注湯口に連通した第1管部材及び前記返湯口に連通した第2管部材が、槽本体内に延設してあり、両管部材の内径より大きい内径の有底筒状をなし、槽本体内の天井近傍に、その開口を前記天井に臨ませて配置した第1上側整流器内に、第1管部材の先端部及び第2管部材の先端部がそれぞれ挿入させてあり、
また、前記給水口に連通した第3管部材及び前記取水口に連通した第4管部材が、槽本体内に延設してあり、両管部材の内径より大きい内径の有底筒状をなし、槽本体内の底部近傍に、その開口を前記底部に臨ませて配置した第1下側整流器内に、第3管部材の先端部及び第4管部材の先端部がそれぞれ挿入させてあることを特徴とする貯湯槽。
A water supply port for supplying hot water to the outside, a pouring port for pouring hot water into the inside, a water supply port for supplying raw water to the inside, a water intake port for taking water from inside, and the above-mentioned water supply port in the vertical shell-shaped tank body for storing hot water In a hot water storage tank provided with a hot water outlet for returning hot water supplied from outside to the inside,
The hot water supply port is provided on the ceiling of the tank body, the pouring port and the hot water supply port are provided on the ceiling side of the tank body, and the water supply port and the water intake port are provided on the bottom side of the tank body. And
A first pipe member communicating with the pouring port and a second pipe member communicating with the hot water port extend in the tank body, and have a bottomed cylindrical shape having an inner diameter larger than the inner diameter of both pipe members. Near the ceiling in the main body, the tip of the first pipe member and the tip of the second pipe member are inserted into a first upper rectifier having an opening facing the ceiling, respectively.
A third pipe member communicating with the water supply port and a fourth pipe member communicating with the water intake port extend in the tank body, and have a bottomed cylindrical shape having an inner diameter larger than the inner diameter of both pipe members. The distal end of the third pipe member and the distal end of the fourth pipe member are respectively inserted into the first lower rectifier having the opening facing the bottom near the bottom in the tank body. Hot water storage tank characterized by the following.
湯水を貯える横型殻状の槽本体に、外部へ湯水を供給する給湯口、内部へ湯を注入する注湯口、内部へ原水を供給する給水口、内部から取水する取水口、及び前記給湯口から外部へ供給した湯水を内部へ返送するための返湯口が設けてある貯湯槽において、
前記槽本体内の天井に、前記注湯口の内径及び返湯口の内径より大きい内径のトンネル状の第2上側整流器が貯湯槽の長手方向へ設けてあり、また、槽本体内の底部に、前記給水口の内径及び取水口の内径より大きい内径のトンネル状の第2下側整流器が貯湯槽の長手方向へ設けてあり、
前記給湯口、注湯口及び返湯口は、前記第2上側整流器内に連通させてあり、前記給水口及び取水口は、前記第2下側整流器内に連通させてあることを特徴とする貯湯槽。
A horizontal shell-shaped tank body that stores hot water, a hot water supply port that supplies hot water to the outside, a pouring port that injects hot water into the inside, a water supply port that supplies raw water to the inside, a water intake port that takes in water from inside, and the hot water supply port In a hot water storage tank provided with a hot water outlet for returning hot water supplied outside to the inside,
On the ceiling in the tank body, a tunnel-shaped second upper rectifier having an inner diameter larger than the inside diameter of the pouring port and the inside diameter of the hot water supply port is provided in the longitudinal direction of the hot water storage tank, and at the bottom in the tank body, A tunnel-shaped second lower rectifier having an inner diameter larger than the inner diameter of the water inlet and the inner diameter of the water intake is provided in the longitudinal direction of the hot water storage tank,
The hot water supply port, the pouring port and the return port are communicated with the second upper rectifier, and the water supply port and the intake port are communicated with the second lower rectifier. .
湯水を貯える殻状の槽本体を具備する貯湯槽と、水を加熱して湯を供給する加熱器と、互いに加熱器と前記貯湯槽との間に架設してあり、貯湯槽から取水する取水管及び貯湯槽へ湯を注入する注湯管と、前記取水管に介装してあり貯湯槽内の水を加熱器へ送給するポンプと、前記貯湯槽外へ湯水を供給する給湯管と、貯湯槽内へ原水を供給する給水管とを備える給湯装置において、
請求項1から6のいずれかに記載の貯湯槽を備えることを特徴とする給湯装置。
A hot water tank having a shell-shaped tank body for storing hot water, a heater for heating the water to supply hot water, and a water heater that is provided between the heater and the hot water tank to take water from the hot water tank. A pouring pipe that injects hot water into a water pipe and a hot water tank, a pump that is interposed in the water intake pipe and feeds water in the hot water tank to a heater, and a hot water supply pipe that supplies hot water outside the hot water tank. And a water supply pipe for supplying raw water into the hot water storage tank,
A hot water supply device comprising the hot water storage tank according to any one of claims 1 to 6.
湯水を貯える殻状の槽本体を具備する貯湯槽と、水を加熱して湯を供給する加熱器と、互いに加熱器と前記貯湯槽との間に架設してあり、貯湯槽から取水する取水管及び貯湯槽へ湯を注入する注湯管と、前記取水管に介装してあり貯湯槽内の水を加熱器へ送給するポンプと、前記貯湯槽外へ湯水を供給する給湯管と、貯湯槽内へ原水を供給する給水管と、前記給湯管に連通し、貯湯槽へ返湯する返湯管とを備える給湯装置において、
請求項7、8又は9に記載の貯湯槽を備えることを特徴とする給湯装置。
A hot water tank having a shell-shaped tank body for storing hot water, a heater for heating the water to supply hot water, and a water heater that is provided between the heater and the hot water tank to take water from the hot water tank. A pouring pipe that injects hot water into a water pipe and a hot water tank, a pump that is interposed in the water intake pipe and feeds water in the hot water tank to a heater, and a hot water supply pipe that supplies hot water outside the hot water tank. A hot water supply device comprising a water supply pipe for supplying raw water into the hot water storage tank, and a hot water supply pipe communicating with the hot water supply pipe and returning hot water to the hot water storage tank;
A hot water supply apparatus comprising the hot water storage tank according to claim 7.
更に、前記貯湯槽内の温度を検出する検温器と、この検温器が検出した温度に基づいて前記ポンプの運転を制御する制御器とを備え、前記検温器は、前記槽本体の底部近傍に配置してある請求項10又は11記載の給湯装置。   Further, a temperature detector for detecting the temperature in the hot water storage tank, and a controller for controlling the operation of the pump based on the temperature detected by the temperature detector, the temperature detector is near the bottom of the tank body The hot water supply device according to claim 10, wherein the hot water supply device is disposed. 前記槽本体の高さ方向へ前記検温器と位置を異ならせて配設してあり、貯湯槽内の温度を検出する一又は複数の他の検温器を更に備え、前記制御器は、前記検温器から与えられる温度信号及び前記他の検温器から与えられる温度信号の内、前記ポンプの運転の制御に用いる温度信号を切り替える切替手段を具備する請求項12記載の給湯装置。   The thermometer is provided at a position different from the temperature detector in the height direction of the tank body, and further includes one or more other temperature detectors for detecting a temperature in the hot water storage tank, and the controller includes the temperature detector. 13. The hot water supply apparatus according to claim 12, further comprising switching means for switching a temperature signal used for controlling operation of the pump, from a temperature signal supplied from a heater and a temperature signal supplied from the another temperature detector. 前記切替手段は、前記検温器及び/又は他の検温器に対応して、任意の切替時刻を設定することができる切替時刻設定手段と、時刻を計測する時計とを具備し、この時計が計測した時刻と前記切替時刻設定手段で設定された時刻とが一致したとき、対応する検温器から与えられる温度信号に切り替えるようにしてある請求項13記載の給湯装置。   The switching means includes switching time setting means capable of setting an arbitrary switching time corresponding to the temperature detector and / or another temperature detector, and a clock for measuring time. 14. The hot water supply apparatus according to claim 13, wherein when the set time matches the time set by the switching time setting means, the hot water supply apparatus is switched to a temperature signal given from a corresponding temperature detector. 前記給水管で供給される原水の温度を検出する原水用検温器を備え、前記切替手段は、前記原水用検温器が検出した原水の温度及び予め設定された基準温度に基づいて、前記切り替え動作を行うようにしてある請求項13記載の給湯装置。   A raw water temperature detector for detecting a temperature of the raw water supplied by the water supply pipe, wherein the switching unit performs the switching operation based on a temperature of the raw water detected by the raw water temperature detector and a preset reference temperature. The hot water supply apparatus according to claim 13, wherein the water supply is performed.
JP2004109386A 2003-05-09 2004-04-01 Hot water storage tank and water heater Expired - Fee Related JP4132054B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008157471A (en) * 2006-11-29 2008-07-10 Showa Mfg Co Ltd Hot water supply device
JP2015210039A (en) * 2014-04-28 2015-11-24 昭和鉄工株式会社 Internal structure of hot water tank
JP2020148391A (en) * 2019-03-13 2020-09-17 三菱電機株式会社 Hot water storage type water heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008157471A (en) * 2006-11-29 2008-07-10 Showa Mfg Co Ltd Hot water supply device
JP2015210039A (en) * 2014-04-28 2015-11-24 昭和鉄工株式会社 Internal structure of hot water tank
JP2020148391A (en) * 2019-03-13 2020-09-17 三菱電機株式会社 Hot water storage type water heater
JP7200764B2 (en) 2019-03-13 2023-01-10 三菱電機株式会社 Storage hot water heater

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