JP4324233B1 - Hot water boiler - Google Patents

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JP4324233B1
JP4324233B1 JP2008247669A JP2008247669A JP4324233B1 JP 4324233 B1 JP4324233 B1 JP 4324233B1 JP 2008247669 A JP2008247669 A JP 2008247669A JP 2008247669 A JP2008247669 A JP 2008247669A JP 4324233 B1 JP4324233 B1 JP 4324233B1
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combustion chamber
hot water
copper plate
water
outer periphery
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JP2010078237A (en
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信雄 友廣
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株式会社アイシーテック・トモヒロ
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Abstract

【課題】燃焼室の耐久性を確保し、効率的に温水を得ることができる温水ボイラーを提供する。
【解決手段】バーナー２から噴射される燃料を燃焼させる燃焼室１と、燃焼室１の外周に配置されて燃焼室の熱によって加熱される貯水タンクとを備えた温水ボイラーであって、燃焼室１を耐腐食性金属で構成すると共に、燃焼室１の外側に熱伝導率の高い素材からなるフィン９を配設した。フィン９は、銅板をＶ字に屈曲させ、そのＶ字に屈曲した谷部に沿って棒状の止着片を配設した形状とし、その止着片と燃焼室１を溶着して固接する構成とした。
【選択図】図２The present invention provides a hot water boiler capable of ensuring the durability of a combustion chamber and efficiently obtaining hot water.
A hot water boiler comprising a combustion chamber (1) for burning fuel injected from a burner (2) and a water storage tank (1) disposed on the outer periphery of the combustion chamber (1) and heated by the heat of the combustion chamber (1). 1 is made of a corrosion-resistant metal, and a fin 9 made of a material having high thermal conductivity is disposed outside the combustion chamber 1. The fin 9 has a shape in which a copper plate is bent into a V-shape, and a stick-shaped fastening piece is disposed along a valley portion bent into the V-shape, and the fastening piece and the combustion chamber 1 are welded to be in close contact with each other. It was.
[Selection] Figure 2

Description

本発明は温水ボイラーに関し、特に、燃焼室を耐圧性及び耐腐食性金属で構成して装置の耐久性を確保し、そして、燃焼室外周に熱伝導効率の優れた金属を配設して、効率的な温水効果を実現した温水ボイラーに関する。   The present invention relates to a hot water boiler, in particular, the combustion chamber is made of a pressure-resistant and corrosion-resistant metal to ensure the durability of the apparatus, and a metal having excellent heat conduction efficiency is disposed on the outer periphery of the combustion chamber, The present invention relates to a hot water boiler that achieves an efficient hot water effect.

一般的に、工場等のプラント施設、商業施設、温浴施設等では、重油、灯油、ガス等を燃焼させて熱水を供給する給湯設備を備え、これら給湯設備のボイラーでは、燃料に空気を混合した混合燃料をバーナーから噴射して燃焼室に送り込み、燃焼室の熱によって水を加熱する構成となっている。
ボイラーによって加熱された温水は貯湯タンクに一旦貯えた後、必要に応じて、温水ポンプによって各所へ送り出される。
このような温水ボイラーに関する技術として、特開２００１−３０４６９５号公報、特開平１１−２４８２５０号公報記載の技術が知られている。
特開２００１−３０４６９５号公報 特開平１１−２４８２５０号公報 Generally, plant facilities such as factories, commercial facilities, and warm bath facilities are equipped with hot water supply equipment that burns heavy oil, kerosene, gas, etc. to supply hot water, and boilers of these hot water supply equipment mix air with fuel. The mixed fuel is injected from the burner, sent to the combustion chamber, and water is heated by the heat of the combustion chamber.
The hot water heated by the boiler is temporarily stored in a hot water storage tank, and then sent out to various places by a hot water pump as necessary.
As techniques relating to such a hot water boiler, techniques described in Japanese Patent Application Laid-Open Nos. 2001-304695 and 11-248250 are known.
JP 2001-304695 A JP 11-248250 A

しかしながら、燃焼排ガス中に含まれているＳＯ３は水蒸気(Ｈ２Ｏ) と反応して硫酸(Ｈ２ＳＯ４） となり、燃焼室を腐食させるおそれがある。このため、燃焼室は耐腐食性金属で構成するが、この耐腐食性金属は熱伝導効率が優れた素材で構成されるわけではない。
また、燃焼室が大型化すると強度確保の必要性から、熱伝導効率を犠牲にしなければならない場合もある。
本発明は係る従来の問題点を解決するためになされたものであって、その目的とするところは、燃焼室を耐圧性及び耐腐食性金属で構成して装置の耐久性を確保し、そして、燃焼室外周に熱伝導効率の優れた金属を配設して、効率的な温水効果を実現した温水ボイラーを提供することにある。 However, SO 3 contained in the combustion exhaust gas reacts with water vapor (H 2 O) to become sulfuric acid (H 2 SO 4 ), which may corrode the combustion chamber. For this reason, the combustion chamber is made of a corrosion-resistant metal, but the corrosion-resistant metal is not made of a material having excellent heat conduction efficiency.
Further, when the combustion chamber is enlarged, the heat conduction efficiency may have to be sacrificed due to the necessity of ensuring the strength.
The present invention has been made to solve the conventional problems, and the object of the present invention is to ensure the durability of the apparatus by configuring the combustion chamber with a pressure-resistant and corrosion-resistant metal, and An object of the present invention is to provide a hot water boiler that realizes an efficient hot water effect by disposing a metal having excellent heat conduction efficiency on the outer periphery of the combustion chamber.

前記目的を達成するための手段として、請求項１記載の温水ボイラーでは、バーナーから噴射される燃料を燃焼させるステンレス製の燃焼室と、燃焼室の外周に配置された銅製フィンと、燃焼室の熱によって加熱される貯水タンクとを備えた温水ボイラーであって、
前記フィンをＶ字に屈曲した銅板によって構成し、銅板の折り曲げ部に所定間隔で切り欠いた取付孔を形成し、前記フィンのＶ字に屈曲した谷部に沿ってステンレス製の止着棒を配設し、取付孔を介して止着棒と燃焼室が対面した部分を溶接し、銅板の谷部を止着棒と燃焼室の間に挟んでＶ字の折り曲げ部の端面を燃焼室の外周に密着して取り付ける構成とした。 As a means for achieving the above object, in the hot water boiler according to claim 1, a stainless steel combustion chamber for burning the fuel injected from the burner, a copper fin disposed on the outer periphery of the combustion chamber, and a combustion chamber A hot water boiler with a water storage tank heated by heat,
The fin is constituted by a copper plate bent in a V shape, a mounting hole cut out at a predetermined interval is formed in a bent portion of the copper plate, and a stainless steel fastening rod is provided along a valley portion bent in the V shape of the fin. And welding the portion where the fastening rod and the combustion chamber face each other through the mounting hole , sandwiching the valley of the copper plate between the fastening rod and the combustion chamber, and the end face of the V-shaped bent portion of the combustion chamber It was set as the structure attached closely to outer periphery .

請求項２記載の発明では、バーナーから噴射される燃料を燃焼させるステンレス製の燃焼室と、燃焼室の外周に配置された銅製フィンと、燃焼室の熱によって加熱される貯水タンクとを備えた温水ボイラーであって、フィンを所定幅の銅板を連続してＶ字に屈曲させて波状とし、銅板の折り曲げ部に所定間隔で切り欠いた取付孔を形成し、そのＶ字の谷部に沿ってステンレス製の止着棒を配設し、取付孔を介して止着棒と燃焼室が対面した部分を溶接し、銅板の谷部を止着棒と燃焼室の間に挟んでＶ字の折り曲げ部の端面を燃焼室の外周に密着して取り付ける構成とした。 The invention according to claim 2 includes a stainless steel combustion chamber for burning the fuel injected from the burner, a copper fin disposed on the outer periphery of the combustion chamber, and a water storage tank heated by the heat of the combustion chamber. A hot water boiler, in which fins are bent into a V shape by continuously bending a copper plate of a predetermined width into a V shape, and mounting holes cut out at predetermined intervals are formed in the bent portion of the copper plate , along the V-shaped valley portion A stainless steel stick is placed, the part where the stick and the combustion chamber face each other is welded through the mounting hole, and the valley of the copper plate is sandwiched between the stick and the combustion chamber. It was set as the structure which attached the end surface of a bending part closely_contact | adhered to the outer periphery of a combustion chamber .

本発明では、前記構成を採用することにより、以下の効果が得られる。
請求項１記載の温水ボイラーにおいては、燃焼室を耐腐食製金属で構成するため、燃焼排ガス中のＳＯ３による硫酸(Ｈ２ＳＯ４）にも耐久性を有する。
燃焼室本体の熱伝導効率が低い場合でも、燃焼室の外縁に熱伝導効率の高い素材を配設することにより高い温水効率が得られる。 In this invention, the following effects are acquired by employ | adopting the said structure.
In the hot water boiler according to the first aspect, since the combustion chamber is made of a corrosion-resistant metal, the sulfuric acid (H 2 SO 4 ) by SO 3 in the combustion exhaust gas has durability.
Even when the heat conduction efficiency of the combustion chamber main body is low, high warm water efficiency can be obtained by disposing a material having high heat conduction efficiency on the outer edge of the combustion chamber.

本発明の温水ボイラーにおいては、燃焼室の外周に止着片を溶接し、その止着片を介してフィンを固接する構成としたので、燃焼室とフィンが溶着しにくい場合であっても、止着片に溶接強度の高い素材を使用することにより、フィンを確実に固定することができる。 In the hot water boiler of the present invention , the fastening piece is welded to the outer periphery of the combustion chamber, and the fin is fixedly contacted via the fastening piece, so even if the combustion chamber and the fin are difficult to weld, By using a material having high welding strength for the fastening piece, the fin can be securely fixed.

本発明の温水ボイラーにおいては、銅板をＶ字に屈曲させ、そのＶ字に屈曲した谷部に沿って棒状の止着片を配設し、その止着片と燃焼室を溶着して、フィンを固接する構成としたので確実に固定することができる。 In the hot water boiler of the present invention , a copper plate is bent into a V shape, a rod-like fastening piece is disposed along a valley portion bent into the V shape, the fastening piece and the combustion chamber are welded, and a fin Can be securely fixed because of the structure in which the contact is made.

本発明の温水ボイラーにおいては、所定幅の銅板を連続してＶ字に屈曲させて波状とし、そのＶ字の谷部に沿って止着片を配設し、その止着片と燃焼室を溶着して、フィンを固接する構成としたので、フィンの取付けが容易に行われる。

 In the hot water boiler of the present invention, a copper plate having a predetermined width is continuously bent into a V shape to form a corrugated shape, and a fastening piece is disposed along the V-shaped trough, and the fastening piece and the combustion chamber are connected to each other. Since the fins are bonded to each other, the fins can be attached easily.

本発明を実施するための最良の形態を説明する。   The best mode for carrying out the present invention will be described.

第１実施例に係る温水ボイラーは図１〜図４に示すように、水平方向に載置された円筒形の燃焼室１と、燃焼室１の基端側から挿入されたバーナー２と、燃焼室１の下流側に連結された排気路３と、燃焼室１の上部及び外周に配置された貯水タンク４と、貯水タンク４へ水を供給する供給口５と、貯水タンク４の温水を各所へ送湯する送出口６を主要な構成としている。
本実施例の温水ボイラーは、貯水タンク４内の水温を検知して所定温度に維持する機能と、貯水タンク４の水量を検知して所定水位に維持する機能を備えている。 As shown in FIGS. 1 to 4, the hot water boiler according to the first embodiment includes a cylindrical combustion chamber 1 placed in a horizontal direction, a burner 2 inserted from the base end side of the combustion chamber 1, and a combustion An exhaust passage 3 connected to the downstream side of the chamber 1, a water storage tank 4 disposed on the upper and outer periphery of the combustion chamber 1, a supply port 5 for supplying water to the water storage tank 4, and hot water in the water storage tank 4 The main outlet is an outlet 6 for feeding hot water.
The hot water boiler of this embodiment has a function of detecting the water temperature in the water storage tank 4 and maintaining it at a predetermined temperature, and a function of detecting the amount of water in the water storage tank 4 and maintaining it at a predetermined water level.

本実施例の燃焼室１は一例として内径６００ｍｍ、長さ１４１０ｍｍの円筒形の形状をなし、耐腐食性金属（ステンレス）によって構成されている。
燃焼室１の奥部上側には集煙室７が配置され、この集煙室７に排気路３が連結され、この排気路３は燃焼室上側を１８０°水平に折り返して通過し、その先端は上方に屈曲して煙突８が形成されている。
前記排気路３は下側に内径１００ｍｍ、長さ１０１．６ｍｍの排気路が２本、上側に内径９０ｍｍ、長さ１０１．６ｍｍの排気路が２本、合計４本の排気路から構成されている。
これら４本の排気路３により燃焼ガスの通気抵抗は低く抑えられ、燃焼ガスは燃焼気流により自然排気されるようになっている。
また、前記燃焼室１及び排気路３の外周にはフィン９が貯水タンク４内に突起して、熱交換効率を向上させている。
また、燃焼室１の奥部にはメンテナンス用の点検口１０が配置されている。 As an example, the combustion chamber 1 of this embodiment has a cylindrical shape with an inner diameter of 600 mm and a length of 1410 mm, and is made of a corrosion-resistant metal (stainless steel).
A smoke collection chamber 7 is disposed on the upper rear side of the combustion chamber 1, and an exhaust passage 3 is connected to the smoke collection chamber 7. The exhaust passage 3 folds horizontally through the upper side of the combustion chamber 180 ° and passes through the tip. Is bent upward to form a chimney 8.
The exhaust passage 3 is composed of a total of four exhaust passages, two exhaust passages having an inner diameter of 100 mm and a length of 101.6 mm on the lower side, and two exhaust passages having an inner diameter of 90 mm and a length of 101.6 mm on the upper side. Yes.
By these four exhaust passages 3, the ventilation resistance of the combustion gas is kept low, and the combustion gas is naturally exhausted by the combustion airflow.
Further, fins 9 protrude from the outer periphery of the combustion chamber 1 and the exhaust passage 3 into the water storage tank 4 to improve heat exchange efficiency.
In addition, an inspection port 10 for maintenance is disposed in the back of the combustion chamber 1.

前記貯水タンク４は、燃焼室上部の上部タンク１１と、燃焼室１の外周に形成された貯水部１２から構成され、上部タンク１１は３００リットルの水を貯留する容積を備え、貯水部１２は１０００リットルの水を貯留する容積を備えている。
前記貯水部１２は燃焼室１の胴部外周及び筒端外周を取り巻いて配置された水の層であり、内部には多数のフィン９が配置されて、燃焼室１の熱がフィンを介して熱交換を受ける構成となっている。
また、上部タンク１１と貯水部１２は一連の連続流域として構成され、水が自由に流通する。
本実施例では、貯水部１２は燃焼室の外周に幅６０ｍｍの幅を確保して配置され、この部位に水が貯留すると、燃焼室は外周を幅６０ｍｍの水の壁で囲われた状態となる。
また、排気路３は燃焼室１の上部を通過しているが、燃焼室との間には間隔を有し、この間隔１３にも水が貯留されて、排気路３の外周も水で囲われた状態となっている。 The water storage tank 4 is composed of an upper tank 11 at the upper part of the combustion chamber and a water storage part 12 formed on the outer periphery of the combustion chamber 1, and the upper tank 11 has a volume for storing 300 liters of water. It has a capacity to store 1000 liters of water.
The water storage section 12 is a water layer disposed around the outer periphery of the body portion and the outer periphery of the cylinder end of the combustion chamber 1. A large number of fins 9 are disposed inside the heat storage section 12, and the heat of the combustion chamber 1 passes through the fins. It is configured to receive heat exchange.
Moreover, the upper tank 11 and the water storage part 12 are comprised as a series of continuous flow areas, and water distribute | circulates freely.
In this embodiment, the water storage section 12 is arranged with a width of 60 mm around the outer periphery of the combustion chamber, and when water is stored in this portion, the combustion chamber is surrounded by a water wall with a width of 60 mm. Become.
The exhaust passage 3 passes through the upper part of the combustion chamber 1, but there is a space between the exhaust chamber 3 and water is also stored in the space 13, and the outer periphery of the exhaust passage 3 is surrounded by water. It is in a broken state.

前記フィン９は図５に示す断面Ｖ字形の銅板１４によって構成され、これらの銅板１４が燃焼室１及び排気路３の外周に多数取付けられている。
銅はその性質上、他の金属に比較して高い熱伝導効率を有しており、この銅板をステンレス製の燃焼室１あるいは排気路３に取付けることにより、燃焼ガスの熱が貯水タンクの水に効率よく伝達される。
前記Ｖ字形の銅板１４は厚さ１〜２ｍｍ、幅１００ｍｍ強の板金を中央から折り曲げて断面Ｖ字形状としたものである。折り曲げ角度は６０度、一辺の幅は５０ｍｍに形成されている。折り曲げ部の端面１５は平らに形成されており、この端面１５が燃焼室へ面合して密着し、この密着部を介して熱がフィン９に伝達される。
尚、Ｖ字形の銅板の長さは取付部位である燃焼室、排気炉の形状に応じて適宜設定されるが、予め１００ｍｍ、１５０ｍｍ、２００ｍｍ、３００ｍｍ、６００ｍｍの長さのものを形成しておく。 The fins 9 are constituted by V-shaped copper plates 14 shown in FIG. 5, and a large number of these copper plates 14 are attached to the outer periphery of the combustion chamber 1 and the exhaust passage 3.
Copper has a higher heat conduction efficiency than other metals due to its nature. By attaching this copper plate to the combustion chamber 1 or the exhaust passage 3 made of stainless steel, the heat of the combustion gas is transferred to the water in the water storage tank. Is transmitted efficiently.
The V-shaped copper plate 14 is formed by bending a sheet metal having a thickness of 1 to 2 mm and a width of more than 100 mm from the center to have a V-shaped cross section. The bending angle is 60 degrees and the width of one side is 50 mm. The end surface 15 of the bent portion is formed flat, and the end surface 15 is in close contact with the combustion chamber and heat is transferred to the fins 9 through the close contact portion.
The length of the V-shaped copper plate is appropriately set according to the shape of the combustion chamber and exhaust furnace that are the attachment parts, but the lengths of 100 mm, 150 mm, 200 mm, 300 mm, and 600 mm are formed in advance. .

前記銅板１４の折り曲げ部には所定間隔で半円状に切り欠いた取付孔１６が形成されている。
この取付孔１６は銅板の谷部に沿って配設した止着棒１７（止着片）を燃焼室１の外周に取り付けるための孔である。
止着棒１７（止着片）は銅板の全長より数ｃｍ程度長い棒状金属であり、ステンレス等の金属から構成される。
銅板１４の取付に際しては、Ｖ字の端面１５を燃焼室または排気路の外周に面合させて、Ｖ字面が外側に向かって開いた状態とし、Ｖ字の谷に沿って止着棒１７をあてがう。
このとき、試着棒１７の両端が銅板の両端から突出するが、この突出部分を燃焼室の外周にろう付け溶接する。
銅板１４には取付孔１６が形成されているので、この取付孔を介して止着棒と燃焼室が面することとなるので、この対面部分をろう付け溶接する。
これにより、止着棒１７の両端及び取付孔１６部分が溶接されて止着棒が固定される。すなわち、銅板１４の谷部が止着棒１７と燃焼室１の間に挟まれて燃焼室１に固接されることになる。
同様にして多数の銅板１４が燃焼室１外周及び排気路３外周を取り巻いて取り付けられる。 In the bent portion of the copper plate 14, there are formed mounting holes 16 cut out in a semicircular shape at a predetermined interval.
The attachment hole 16 is a hole for attaching a fastening rod 17 (fastening piece) disposed along the valley of the copper plate to the outer periphery of the combustion chamber 1.
The fastening rod 17 (fastening piece) is a rod-shaped metal that is several cm longer than the entire length of the copper plate, and is made of a metal such as stainless steel.
When attaching the copper plate 14, the V-shaped end surface 15 is brought into contact with the outer periphery of the combustion chamber or the exhaust passage so that the V-shaped surface is opened outward, and the fastening rod 17 is moved along the V-shaped valley. Apply.
At this time, both ends of the fitting rod 17 protrude from both ends of the copper plate, and this protruding portion is brazed and welded to the outer periphery of the combustion chamber.
Since the attachment hole 16 is formed in the copper plate 14, the fastening rod and the combustion chamber face each other through the attachment hole, and the facing portion is brazed and welded.
As a result, both ends of the fastening rod 17 and the attachment hole 16 are welded to fix the fastening rod. That is, the valley portion of the copper plate 14 is sandwiched between the fastening rod 17 and the combustion chamber 1 and is in solid contact with the combustion chamber 1.
Similarly, a large number of copper plates 14 are attached around the outer periphery of the combustion chamber 1 and the outer periphery of the exhaust passage 3.

止着棒１７の溶接においては、燃焼室１と接着性の良い素材を使用する。本実施例では燃焼室はステンレスで構成されているので、止着棒およびろう材１８はステンレスを使用する。
ステンレスと銅は異種金属であるため溶着が困難であるが、燃焼室１と同一金属のステンレスであれば溶着強度が確保される。
なお、燃焼室１が他の耐腐食性金属の場合には、止着棒１７及びろう材１８を燃焼室１と同一金属とする。 In welding the fixing rod 17, a material having good adhesion to the combustion chamber 1 is used. In this embodiment, since the combustion chamber is made of stainless steel, the fastening rod and the brazing material 18 are made of stainless steel.
Since stainless steel and copper are different metals, welding is difficult. However, if stainless steel is the same metal as the combustion chamber 1, the welding strength is ensured.
When the combustion chamber 1 is made of another corrosion resistant metal, the fastening rod 17 and the brazing filler metal 18 are made of the same metal as the combustion chamber 1.

次に本発明の作用を説明する。
灯油、重油、軽油等の液体燃料を霧化して空気と混合し、圧力を掛けてバーナー２から噴射する。噴射すると同時に、点火装置によって燃焼し、火炎を形成する。 Next, the operation of the present invention will be described.
Liquid fuel such as kerosene, heavy oil, and light oil is atomized and mixed with air, and is injected from the burner 2 under pressure. Simultaneously with the injection, it is burned by an ignition device to form a flame.

バーナー２の燃焼に伴って燃焼室外周の貯水部１２が加熱される。貯水部１２には多数のフィン９が設置されているので、効率的に熱交換が行われる。
加熱された水は浮力により貯水タンク４内を自然上昇する。ここで、循環装置により貯水部底の水が取水されて上部タンク１１へ送出されるため、加熱された水が流下して貯水部１２の下方に集約される。ボイラーが稼働した最初の時点では貯水部下方に温水が集約され、徐々に貯水タンク全体が温められることになる。
貯水タンク底面に形成された送出口６からは、集約された温水が優先的にパイプを経由して各所へ送湯される。 As the burner 2 burns, the water reservoir 12 on the outer periphery of the combustion chamber is heated. Since a large number of fins 9 are installed in the water reservoir 12, heat exchange is performed efficiently.
The heated water naturally rises in the water storage tank 4 by buoyancy. Here, since the water at the bottom of the water storage unit is taken in by the circulation device and sent to the upper tank 11, the heated water flows down and is collected below the water storage unit 12. At the first point of operation of the boiler, hot water is concentrated below the water storage section, and the entire water storage tank is gradually warmed.
From the outlet 6 formed on the bottom of the water storage tank, the concentrated hot water is preferentially sent to various places via pipes.

貯水タンクではフロートスイッチが水位低下を検知すると、その信号が水量制御部に伝達されて、水量制御部が新たな水の補充を行う。
温度センサが貯水タンクの水温が所定温度以上であることを検知すると、その信号が温度制御部に伝達され、温度制御部がバーナー２の稼働を停止させる。これにより、貯水タンクから送湯された水量は補充が行われて貯水タンク内の水量は一定の範囲内で確保され、貯水タンクの水温はバーナーの入切により自動的に制御される。 In the water storage tank, when the float switch detects a drop in water level, the signal is transmitted to the water amount control unit, and the water amount control unit replenishes new water.
When the temperature sensor detects that the water temperature in the water storage tank is equal to or higher than a predetermined temperature, the signal is transmitted to the temperature control unit, and the temperature control unit stops the operation of the burner 2. As a result, the amount of water supplied from the water storage tank is replenished and the amount of water in the water storage tank is secured within a certain range, and the water temperature of the water storage tank is automatically controlled by turning on / off the burner.

つまり、パイプから規定温度の送湯を開始すると、フロートスイッチが水位の低下を検知して上部タンク１１に水が補充され、貯水タンク４の水位レベルは一定に保たれる。仮に送出口６から１時間に５００リットル送湯されると、上部タンクには同量の５００リットルが補充される。
従来のボイラーでは、貯水タンクに水が補充されると、貯水タンク内の水温は規定温度より大幅に下がり、バーナーの燃焼は開始されて規定温度まで燃焼する。
本発明の温水ボイラーは、バーナー燃焼の輻射熱を最大限に得るために、装置の一番下部に燃焼室１を設置し、バーナーも燃焼室１下部に取り付けている。
この構造によって、貯水タンク６上部より冷水を補充しても、送出口から出る水温は一時的に低下するが、所定時間経過後は安定した高温を維持する。
その原因は、燃焼室１周辺の水温が高熱になるが、貯水タンク４内を流下する冷水がその高温水とモミ合って下る間に加熱され、設定温度より上昇すると見られる。従って、大型の瞬間湯沸かし器と似た現象が生じることになる。 In other words, when the hot water supply at the specified temperature is started from the pipe, the float switch detects a drop in the water level and the upper tank 11 is replenished with water, and the water level of the water storage tank 4 is kept constant. If 500 liters of hot water is fed from the delivery port 6 in one hour, the same amount of 500 liters is replenished to the upper tank.
In the conventional boiler, when water is replenished in the water storage tank, the water temperature in the water storage tank is greatly lowered from the specified temperature, and the combustion of the burner is started and burns to the specified temperature.
In the hot water boiler of the present invention, in order to obtain the maximum radiant heat of burner combustion, the combustion chamber 1 is installed at the bottom of the apparatus, and the burner is also attached to the lower portion of the combustion chamber 1.
With this structure, even if cold water is replenished from the upper part of the water storage tank 6, the temperature of the water coming out from the delivery port is temporarily lowered, but a stable high temperature is maintained after a predetermined time.
The reason for this is that although the water temperature around the combustion chamber 1 becomes high, the cold water flowing down in the water storage tank 4 is heated while falling in contact with the high-temperature water, and rises above the set temperature. Therefore, a phenomenon similar to that of a large instant water heater occurs.

図６は従来例に係る温水ボイラーとの温水効率の比較を示す図である。
図６は、オリンピア製：１７．１リットル／ｍｉｎのバーナーによる貯水容量１３００リットルの貯水タンクの水温の上昇推移を表している。
従来例の温水ボイラーでは水温２６℃の冷水が３５分で７９℃に達したのに対し、本実施例の温水ボイラーでは水温２７．３℃の冷水がバーナー点火後、２３分で８１．６℃に達している。
図の推移グラフでは本実施例の温水ボイラーの温度上昇グラフの勾配が従来例に比較して急勾配であることが示され、温度上昇効率が優れていることが確認された。 FIG. 6 is a diagram showing a comparison of hot water efficiency with a hot water boiler according to a conventional example.
FIG. 6 shows an increase in the water temperature of a water storage tank having a water storage capacity of 1300 liters using a burner of Olympia: 17.1 liters / min.
In the hot water boiler of the conventional example, cold water having a water temperature of 26 ° C. reached 79 ° C. in 35 minutes, whereas in the hot water boiler of this example, cold water having a water temperature of 27.3 ° C. was 81.6 ° C. in 23 minutes after the burner was ignited. Has reached.
The transition graph of the figure shows that the gradient of the temperature rise graph of the hot water boiler of this example is steeper than that of the conventional example, and it was confirmed that the temperature rise efficiency is excellent.

また、図７は本実施例の温水ボイラー稼働時の水温変化を示している。
バーナーはオリンピア製：１７．１リットル／ｍｉｎのバーナーを使用した。
図７に示すとおり、貯水容量１３００リットルの貯水タンクの水温が、バーナー点火２９分後に水温８０℃に上昇し、３５分後に水温９０℃に達している。
水温が９０℃に達した時点で、貯水タンクの下部より１６６リットル／ｍｉｎの温水を送出すると共に、貯水タンク上部より同量の冷水の補充を行ったところ、６０分以後には、水温４７．６℃で安定温度となった。
本実施例の温水ボイラーでは、１６６リットル／ｍｉｎの温水を常時供給可能であることが確認された。 Moreover, FIG. 7 has shown the water temperature change at the time of hot water boiler operation | movement of a present Example.
A burner manufactured by Olympia: 17.1 liter / min was used.
As shown in FIG. 7, the water temperature of the water storage tank having a water storage capacity of 1300 liters rose to a water temperature of 80 ° C. after 29 minutes of ignition of the burner, and reached a water temperature of 90 ° C. after 35 minutes.
When the water temperature reached 90 ° C., 166 liters / min of hot water was sent from the lower part of the water tank and the same amount of cold water was replenished from the upper part of the water tank. A stable temperature was reached at 6 ° C.
It was confirmed that the hot water boiler of this example can always supply 166 liter / min of hot water.

次に、図８は第２実施例に係る温水ボイラーである。
第１実施例では、Ｖ字形の銅板１４を燃焼室１外周及び排気路３外周に個々に取り付ける構成としたが、第２実施例では図８に示すようにＶ字形に折れ曲がった波状銅板２０を一連として取り付ける構成である。
フィンを構成する波状銅板２０は、所定長の幅広の銅板を所定間隔で交互に折り曲げて谷部と山部が交互に連続する波状としたものである。
この谷部と山部の大きさは、取付ける使用する燃焼室等の大きさによって適宜設定されるが、一例として角度６０度、一辺の幅５０ｍｍとする。
波状の銅板の谷部に相当する部位には第１実施例と同様に所定間隔で取付孔１６が形成されており、それぞれの谷に沿って配設された止着棒１７の両端及び取付孔１６に位置する部位を燃焼室１にろう付け溶接することにより、銅板が燃焼室外周に固定される。
排気炉３は燃焼室１に比べて径が小さいため、一枚の波板を巻回して配設することができる。
第２実施例の銅板では、１本ごとに個別にフィンを取り付けるのにくらべてフィン取付時の位置決めの手間が削減され、効率的な取付けが可能となる。 Next, FIG. 8 shows a hot water boiler according to the second embodiment.
In the first embodiment, the V-shaped copper plate 14 is individually attached to the outer periphery of the combustion chamber 1 and the outer periphery of the exhaust passage 3, but in the second embodiment, a corrugated copper plate 20 bent into a V-shape as shown in FIG. It is the structure attached as a series.
The corrugated copper plate 20 constituting the fin is a corrugated plate in which a wide copper plate having a predetermined length is alternately bent at a predetermined interval so that valleys and peaks are alternately continuous.
The size of the valley and the peak is appropriately set depending on the size of the combustion chamber to be used and the like, and as an example, the angle is 60 degrees and the width of one side is 50 mm.
Similar to the first embodiment, mounting holes 16 are formed at predetermined intervals in portions corresponding to the valleys of the corrugated copper plate, and both ends and mounting holes of the fastening rods 17 disposed along the respective valleys. The copper plate is fixed to the outer periphery of the combustion chamber by brazing and welding the portion located at 16 to the combustion chamber 1.
Since the exhaust furnace 3 has a smaller diameter than the combustion chamber 1, it can be disposed by winding a single corrugated sheet.
In the copper plate of the second embodiment, the positioning work at the time of fin attachment is reduced and efficient attachment is possible as compared with the case of individually attaching the fins one by one.

以上、実施例を説明したが、本発明の具体的な構成は前記実施例に限定されるものではなく、発明の要旨を逸脱しない範囲の設計変更等があっても本発明に含まれる。
例えば、ステンレスの他周知の耐腐食性金属を使用する構成でもよい。
本発明で使用する熱伝導効率の高い素材としては銀、銅が挙げられるが、さらに熱伝導効率の優れた合金等を使用する場合であっても本発明に含まれる。 Although the embodiments have been described above, the specific configuration of the present invention is not limited to the above-described embodiments, and design changes and the like within a scope not departing from the gist of the invention are included in the present invention.
For example, a configuration using a known corrosion-resistant metal other than stainless steel may be used.
Examples of the material having high heat conduction efficiency used in the present invention include silver and copper. However, even when an alloy having excellent heat conduction efficiency is used, it is included in the present invention.

温水ボイラーの概略断面図である。It is a schematic sectional drawing of a hot water boiler. フィンの配設状態を示す側面図である。It is a side view which shows the arrangement | positioning state of a fin. フィンの配設状態を示す背面図である。It is a rear view which shows the arrangement | positioning state of a fin. フィンの配設状態を示す正面図である。It is a front view which shows the arrangement | positioning state of a fin. フィンの取付構造を示す斜視図である。It is a perspective view which shows the attachment structure of a fin. 従来例との温水効率の比較を示す図である。It is a figure which shows the comparison of warm water efficiency with a prior art example. 温水ボイラーの稼働時における温水の温度変化を示す図である。It is a figure which shows the temperature change of warm water at the time of operation of a warm water boiler. 第２実施例に係るフィンの取付方法を示す説明図である。It is explanatory drawing which shows the attachment method of the fin which concerns on 2nd Example.

符号の説明Explanation of symbols

１ 燃焼室
２ バーナー
３ 排気路
４ 貯水タンク
５ 供給口
６ 送出口
７ 集煙室
８ 煙突
９ フィン
１０ 点検口
１１ 上部タンク
１２ 貯水部
１３ 間隔
１４ 銅板
１５ 端面
１６ 取付孔
１７ 止着棒
１８ ろう材
２０ 波状銅板 DESCRIPTION OF SYMBOLS 1 Combustion chamber 2 Burner 3 Exhaust path 4 Water storage tank 5 Supply port 6 Outlet 7 Smoke collection chamber 8 Chimney 9 Fin 10 Inspection port 11 Upper tank 12 Water storage part 13 Space | interval 14 Copper plate 15 End surface 16 Mounting hole 17 Fixing rod 18 Brazing material 20 Corrugated copper plate

Claims (2)

バーナーから噴射される燃料を燃焼させるステンレス製の燃焼室と、燃焼室の外周に配置された銅製フィンと、燃焼室の熱によって加熱される貯水タンクとを備えた温水ボイラーであって、
前記フィンをＶ字に屈曲した銅板によって構成し、銅板の折り曲げ部に所定間隔で切り欠いた取付孔を形成し、
前記フィンのＶ字に屈曲した谷部に沿ってステンレス製の止着棒を配設し、取付孔を介して止着棒と燃焼室が対面した部分を溶接し、銅板の谷部を止着棒と燃焼室の間に挟んでＶ字の折り曲げ部の端面を燃焼室の外周に密着して取り付ける構成とした温水ボイラー。 A hot water boiler comprising a stainless steel combustion chamber for burning fuel injected from a burner, a copper fin disposed on the outer periphery of the combustion chamber, and a water storage tank heated by the heat of the combustion chamber,
The fin is constituted by a copper plate bent in a V shape, and a mounting hole cut out at a predetermined interval is formed in a bent portion of the copper plate ,
A stainless steel stick is arranged along the valley of the fin bent in a V shape, and the part where the stick and the combustion chamber face each other is welded through the mounting hole to fasten the copper plate. A hot water boiler having a configuration in which an end face of a V-shaped bent portion is attached to an outer periphery of a combustion chamber while being sandwiched between a rod and a combustion chamber . バーナーから噴射される燃料を燃焼させるステンレス製の燃焼室と、燃焼室の外周に配置された銅製フィンと、燃焼室の熱によって加熱される貯水タンクとを備えた温水ボイラーであって、
フィンを所定幅の銅板を連続してＶ字に屈曲させて波状とし、銅板の折り曲げ部に所定間隔で切り欠いた取付孔を形成し、そのＶ字の谷部に沿ってステンレス製の止着棒を配設し、取付孔を介して止着棒と燃焼室が対面した部分を溶接し、銅板の谷部を止着棒と燃焼室の間に挟んでＶ字の折り曲げ部の端面を燃焼室の外周に密着して取り付ける構成とした温水ボイラー。 A hot water boiler comprising a stainless steel combustion chamber for burning fuel injected from a burner, a copper fin disposed on the outer periphery of the combustion chamber, and a water storage tank heated by the heat of the combustion chamber,
Fins are bent into a V shape by continuously bending a copper plate of a predetermined width into a V-shape, mounting holes cut out at predetermined intervals are formed in the bent portion of the copper plate, and stainless steel fastening along the V-shaped valley portion Place the rod , weld the part where the fastening rod and the combustion chamber face each other through the mounting hole, and burn the end face of the V-shaped bent part with the valley of the copper plate sandwiched between the fastening rod and the combustion chamber A hot water boiler with a configuration that attaches closely to the outer periphery of the chamber .
JP2008247669A 2008-09-26 2008-09-26 Hot water boiler Expired - Fee Related JP4324233B1 (en)

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