JP2005291566A - Water heater - Google Patents
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- JP2005291566A JP2005291566A JP2004104466A JP2004104466A JP2005291566A JP 2005291566 A JP2005291566 A JP 2005291566A JP 2004104466 A JP2004104466 A JP 2004104466A JP 2004104466 A JP2004104466 A JP 2004104466A JP 2005291566 A JP2005291566 A JP 2005291566A
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- side wall
- heat exchange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
本発明は、熱交換部とこれを加熱するガス燃焼室との集合体の、高さ寸法の精度向上を図った給湯機に関するものである。 The present invention relates to a water heater that improves the accuracy of the height dimension of an assembly of a heat exchange section and a gas combustion chamber that heats the heat exchange section.
図5は、従来の給湯機の内部構造の分解斜視図である。
平行に配設された複数の扁平バーナ(21)(21)群から成るバーナブロック(2)は、矩形状の燃焼箱(3)に収納されると共に、該燃焼箱(3)の前端開口(30)の上半部は前板(32)で閉塞される構成になっており、更に、上記バーナブロック(2)にはガス分配器(1)からガス供給されるようになっている。
FIG. 5 is an exploded perspective view of the internal structure of a conventional water heater.
A burner block (2) composed of a plurality of flat burners (21) (21) arranged in parallel is housed in a rectangular combustion box (3) and a front end opening of the combustion box (3) ( The upper half of 30) is closed by a front plate (32), and further, gas is supplied from the gas distributor (1) to the burner block (2).
一方、前記燃焼箱(3)の上端開口(31)に連設される熱交換器(4)は、上下に貫通する矩形筒状の外枠(40)と、該外枠(40)内に多数並設される吸熱フィン(41)(41)と、該吸熱フィン(41)(41)及び前記外枠(40)の側壁を貫通する通水管(42)(42)から構成されており、該通水管(42)(42)の上流端(420)や下流端には銅管(図示せず)等が配管接続されるようになっている。 On the other hand, the heat exchanger (4) connected to the upper end opening (31) of the combustion box (3) includes a rectangular cylindrical outer frame (40) penetrating vertically, and the outer frame (40). A plurality of endothermic fins (41) and (41), and the endothermic fins (41) and (41) and the water pipes (42) and (42) penetrating the side walls of the outer frame (40), Copper pipes (not shown) and the like are connected to the upstream end (420) and the downstream end of the water pipes (42) and (42).
上記外枠(40)の下端外周にはフランジ(40A)が張り出していると共に、該フランジ(40A)には差込スリット(S1)(S1)が形成されている。そして、熱交換器(4)と燃焼箱(3)を組立てるときは、両者の接合部にパッキンを介在させると共に、前記差込スリット(S1)(S1)に対し、既述燃焼箱(3)の上端周縁に起立するカシメ舌片(S2)(S2)を差し込んで折り曲げ、これにより、熱交換器(4)と燃焼箱(3)をカシメ結合する(図5,図6参照)。 A flange (40A) projects from the outer periphery of the lower end of the outer frame (40), and insertion slits (S1) (S1) are formed in the flange (40A). Then, when assembling the heat exchanger (4) and the combustion box (3), a packing is interposed at the joint between the two, and the above-described combustion box (3) with respect to the insertion slits (S1) (S1) The crimping tongues (S2) and (S2) that stand up at the upper edge of the tube are inserted and bent to thereby crimp the heat exchanger (4) and the combustion box (3) (see FIGS. 5 and 6).
一方、熱交換器(4)の上端開口(43)に連設される排気ダクト本体(5)は、下方及び前方が開放する扁平な矩形箱状に形成されており、前記排気ダクト本体(5)の下端開口(52)の外周フランジ(53)にはカシメ舌片(S3)(S3)が垂下している。そして、このカシメ舌片(S3)(S3)は、熱交換器(4)の上端の外周フランジ(44)に対して外側から巻き込む態様でカシメ止めされるようになっている。そして、このように結合された燃焼箱(3)と熱交換器(4)と排気ダクト本体(5)の集合で構成される給湯機本体は、ケーシング(9)に対してブラケット等で適宜、配設固定されている。
又、上記排気ダクト本体(5)の下流端の排気口(51)部分には排気口カバー(6)がビス(b)(b)で固定されていると共に、該排気口カバー(6)に突設された排気筒(60)は、給湯機のケーシング(9)の前面蓋(90)に開設された排気用窓(91)に遊挿されている。
An exhaust port cover (6) is fixed to the exhaust port (51) at the downstream end of the exhaust duct body (5) with screws (b) (b). The projecting exhaust pipe (60) is loosely inserted into an exhaust window (91) provided in the front cover (90) of the casing (9) of the water heater.
しかしながら、上記従来のものでは、燃焼箱(3)と熱交換器(4)が独立部品で構成されているから、組立時の上下方向の寸法のバラツキが生じ易く、これら燃焼箱(3)と熱交換器(4)との結合体の高さ寸法の精度が悪くなる。又、燃焼箱(3)と熱交換器(4)の連結部には気密性確保の為のパッキンが介在されるから、この点からも、組立時の寸法のバラツキが生じ、燃焼箱(3)と熱交換器(4)との結合体の高さ寸法の精度が一層悪くなる。 However, in the above conventional one, since the combustion box (3) and the heat exchanger (4) are formed of independent parts, the vertical dimension during assembly is likely to vary, and these combustion boxes (3) and The accuracy of the height dimension of the combined body with the heat exchanger (4) is deteriorated. In addition, since a packing for ensuring airtightness is interposed in the connecting portion of the combustion box (3) and the heat exchanger (4), the dimensional variation during assembly also occurs from this point, and the combustion box (3 ) And the heat exchanger (4), the accuracy of the height dimension of the combined body is further deteriorated.
その結果、上記従来のものでは、次の問題があった。
1.熱交換器(4)に設けられた通水管(42)の上流端(420)の配置高さのバラツキが大きくなり、該上流端(420)への銅管等の円滑な配管接続作業を阻害する。
2.熱交換器(4)の上端に連結された排気ダクト本体(5)に固定されている排気口カバー(6)の高さ位置が、ケーシング(9)の排気用窓(91)に対して上下にずれ易くなる。その結果、器具組立時に、前記排気口カバー(6)の排気筒(60)とケーシング(9)の排気用窓(91)を円滑に嵌合させることができない場合が生じる。
As a result, the conventional apparatus has the following problems.
1. The variation in the arrangement height of the upstream end (420) of the water pipe (42) provided in the heat exchanger (4) becomes large, and the smooth pipe connection work such as the copper pipe to the upstream end (420) is obstructed. To do.
2. The height of the exhaust port cover (6) fixed to the exhaust duct body (5) connected to the upper end of the heat exchanger (4) is above and below the exhaust window (91) of the casing (9). It becomes easy to shift to. As a result, there may occur a case where the exhaust pipe (60) of the exhaust port cover (6) and the exhaust window (91) of the casing (9) cannot be smoothly fitted during assembly of the appliance.
本発明は、かかる点に鑑みて成されたもので、
『ガス燃焼室と、熱交換部と、排気ダクト部とがケーシング(9)内に於いて下方からこの順序で配列されている給湯機であって、
前記ガス燃焼室は、燃焼室用右側壁及び燃焼室用左側壁と燃焼室用前側壁及び燃焼室用後側壁の四側壁で包囲され且つバーナブロック(2)を収納する上方開放の空間であり、
前記熱交換部は、熱交用右側壁及び熱交用左側壁と熱交用前側壁及び熱交用後側壁の四側壁で包囲された矩形状空間に配設された多数の吸熱フィン(41)(41)と該吸熱フィン(41)(41)を貫通する通水管(42)(42)で構成されている給湯機』に於いて、前記燃焼室と熱交換部との結合体の高さ寸法のバラツキを小さくすることにより、上記通水管(42)(42)の上流端(420)への銅管配管の作業や、排気ダクト部に連設される排気口カバー(6)の排気筒(60)とケーシング(9)側の排気用窓(91)を嵌合させる作業等の、組立て作業が円滑に行なえるようにすることを課題とする。
The present invention has been made in view of such points.
`` A water heater in which a gas combustion chamber, a heat exchange part, and an exhaust duct part are arranged in this order from below in the casing (9),
The gas combustion chamber is an open space that is surrounded by the four sidewalls of the combustion chamber right side wall, the combustion chamber left side wall, the combustion chamber front side wall, and the combustion chamber rear side wall, and houses the burner block (2). ,
The heat exchanging unit includes a plurality of heat-absorbing fins (41) disposed in a rectangular space surrounded by the right side wall for heat exchange, the left side wall for heat exchange, and the four side walls of the front side wall for heat exchange and the rear side wall for heat exchange. ) (41) and a water heater (42) (42) passing through the heat-absorbing fins (41) (41) '', the height of the combined body of the combustion chamber and the heat exchange unit By reducing the size variation, the copper pipe piping to the upstream end (420) of the water pipes (42) and (42) and the exhaust port cover (6) connected to the exhaust duct are exhausted. It is an object of the present invention to make it possible to smoothly perform an assembly operation such as an operation of fitting the cylinder (60) and the exhaust window (91) on the casing (9) side.
[請求項1に係る発明]
上記課題を解決するための請求項1に係る発明の技術的手段は、
『前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と前記熱交用左側壁の組、前記燃焼室用後側壁と前記熱交用後側壁の組の、前記燃焼室用前側壁と前記熱交用前側壁の組の、各組の夫々は、一枚板で構成されている』ことである。
上記技術的手段によれば、ガス燃焼室と熱交換部の構成壁のうち、上下に繋がる構成壁の夫々は一枚板で構成されている。従って、上下に分割されたガス燃焼室と熱交換部を結合する既述従来のものと相違し、ガス燃焼室と熱交換部の結合体全体の高さ寸法が組立て誤差等によってバラつくことが少ない。
[Invention of Claim 1]
The technical means of the invention according to claim 1 for solving the above-mentioned problem is as follows:
`` A set of the combustion chamber right side wall and the right side wall for heat exchange, a set of the left side wall for the combustion chamber and the left side wall for heat exchange, a set of the rear side wall for the combustion chamber and the rear side wall for heat exchange, Each set of the set of the combustion chamber front side wall and the heat exchange front side wall is composed of a single plate.
According to the above technical means, among the constituent walls of the gas combustion chamber and the heat exchange section, each of the constituent walls connected in the vertical direction is constituted by a single plate. Therefore, unlike the conventional one in which the gas combustion chamber divided into the upper and lower portions and the heat exchanging portion are combined, the overall height of the combined body of the gas combustion chamber and the heat exchanging portion may vary due to an assembly error or the like. Few.
[請求項2に係る発明]
請求項1に係る発明において、
『前記各一枚板の夫々は、全て同一材料で構成されている』ものとすることができる。
各一枚板が、夫々熱膨張率の異なった別材料で構成されていると、ガス燃焼によって前記一枚板の夫々が上下方向に異なった延び量の熱膨張を行なう。その結果、前記各一枚板相互の結合部に大きな熱応力が作用し、該結合部が経年的に破損し易くなる。これに対し、上記請求項2に係る発明では各一枚板が全て熱膨張率の等しい同一材料で構成されているから、ガス燃焼時には各一枚板が同じ割合で熱膨張し、これにより、前記結合部に熱応力が作用しない。
よって、前記結合部が経年的に破損する心配が少なくなる。
[Invention of Claim 2]
In the invention according to claim 1,
“Each of the single plates may be made of the same material”.
If each single plate is made of a different material having a different coefficient of thermal expansion, each single plate performs thermal expansion with a different amount of extension in the vertical direction by gas combustion. As a result, a large thermal stress acts on the joints between the single plates, and the joints are easily damaged over time. On the other hand, in the invention according to
Therefore, there is less concern that the connecting portion will be damaged over time.
[請求項3に係る発明]
請求項1又は2に係る発明に於いて、
『前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と前記熱交用左側壁の組、の各組を構成する一枚板の夫々はステンレス材料で構成され、
前記通水管(42)(42)は、前記熱交用右側壁及び前記熱交用左側壁を貫通していると共に、該通水管(42)(42)と前記吸熱フィン(41)(41)は銅材料で構成されており、
前記吸熱フィン(41)(41)に対する通水管(42)(42)の貫通部は、ロウ付けされている』ものとすることができる。
このものでは、熱交用右側壁や熱交用左側壁を構成する左右の一枚板がステンレス材料で構成されているから、銅材料の場合に比べて機械的強度が向上する。従って、給湯機の出荷運送時や設置作業時の衝撃で熱交換部等が損傷を受ける心配が少なくなる。又、上記一枚板がステンレス材料で構成されているから、銅材料に比べて耐熱性が向上し、経年劣化を抑制することができる。
[Invention of Claim 3]
In the invention according to
“The set of the right side wall for the combustion chamber and the right side wall for heat exchange and the set of the left side wall for the combustion chamber and the left side wall for heat exchange are each made of a stainless material. ,
The water pipes (42) and (42) pass through the right side wall for heat exchange and the left side wall for heat exchange, and the water pipes (42) (42) and the heat absorbing fins (41) (41). Is made of copper material,
The through portions of the water pipes (42) and (42) with respect to the heat absorbing fins (41) and (41) are brazed. "
In this case, since the left and right single plates constituting the right side wall for heat exchange and the left side wall for heat exchange are made of a stainless material, the mechanical strength is improved as compared with the case of a copper material. Therefore, there is less concern that the heat exchange unit or the like is damaged due to an impact during shipping and transportation of the water heater or installation work. Moreover, since the said single plate is comprised with the stainless steel material, heat resistance improves compared with a copper material, and aged deterioration can be suppressed.
又、請求項3に係る発明では、熱交用右側壁及び熱交用左側壁を構成する前記各一枚板に対する通水管(42)(42)の貫通部が実質的に固定されないから、上記通水管(42)(42)が長さ方向に熱膨張と収縮を繰り返しても、前記貫通部に熱応力が作用せず、熱交換部が破損する心配が少なくなる。
即ち、銅材料で構成された吸熱フィン(41)(41)と通水管(42)(42)は相互にロウ付けされているが、これら吸熱フィン(41)(41)と通水管(42)(42)は、一般的には次のように加熱炉でロウ付けされる。
Further, in the invention according to
That is, the heat absorption fins (41) (41) and the water pipes (42) (42) made of copper material are brazed to each other, but these heat absorption fins (41) (41) and the water pipe (42) (42) is generally brazed in a heating furnace as follows.
即ち、吸熱フィン(41)(41)群に通水管(42)(42)を貫通させると共に、該貫通部に於ける通水管(42)(42)の外周面と吸熱フィン(41)(41)の境界にロウ材を適宜介在させる。又、熱交用右側壁と熱交用左側壁を構成する左右の一枚板(ステンレスで構成されている)に通水管(42)(42)の両端部を貫通させ、この状態にある左右一対の一枚板,通水管(42)(42)及び吸熱フィン(41)(41)の集合体を加熱炉内で加熱して前記ロウ材を溶融させる。このロウ材の溶融によって、吸熱フィン(41)(41)と通水管(42)(42)がロウ付けされるが、前記左右の一枚板はステンレスで構成されているから、該一枚板に対する通水管(42)(42)の貫通部にロウ材が流れ込むことがあっても、これら一枚板と通水管(42)(42)とが実質的にロウ付けされることはない。ロウ材は銅材料から成る吸熱フィン(41)(41)と通水管(42)(42)を結合するものであるから、ステンレス製の左右の一枚板と通水管(42)(42)は実質的に結合されないからである。
従って、ガスの燃焼・消火に伴って上記通水管(42)(42)が長さ方向に熱膨張と収縮を繰り返したときには、前記貫通部において、通水管(42)(42)が前記一枚板に対して摺動し、これにより、前記貫通部に過大な力が作用しない。よって、熱交換部の破損防止が図れる。
That is, the water absorption pipes (42) and (42) are passed through the group of heat absorption fins (41) and (41), and the outer peripheral surfaces of the water flow pipes (42) and (42) and the heat absorption fins (41) and (41) in the penetration part. ), A brazing material is interposed as appropriate. Moreover, the both ends of the water pipes (42) and (42) are passed through the left and right single plates (made of stainless steel) constituting the right side wall for heat exchange and the left side wall for heat exchange. An assembly of a pair of single plates, water pipes (42) and (42), and heat absorbing fins (41) and (41) is heated in a heating furnace to melt the brazing material. By melting the brazing material, the heat absorption fins (41) (41) and the water pipes (42) (42) are brazed, but the left and right single plates are made of stainless steel. Even if the brazing material flows into the through portions of the water pipes (42) and (42), the single plate and the water pipes (42) and (42) are not substantially brazed. Since the brazing material combines the heat-absorbing fins (41) (41) made of copper and the water pipes (42) (42), the left and right single plates made of stainless steel and the water pipes (42) (42) This is because they are not substantially combined.
Therefore, when the water pipe (42) (42) repeats thermal expansion and contraction in the length direction along with gas combustion / extinguishment, the water pipe (42) (42) is the one piece in the penetrating portion. By sliding with respect to the plate, an excessive force does not act on the penetrating portion. Therefore, damage to the heat exchange part can be prevented.
[請求項4に係る発明]
請求項1から3に係る発明に於いて、
『前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と熱交用左側壁の組、前記燃焼室用後側壁と前記熱交用後側壁の組、の各組の夫々を構成する各一枚板相互の周方向の境界部は、ハゼ折りカシメによって結合されている』ものでは、各一枚板相互の結合部が気密性の高いハゼ折りカシメによって結合されているから、該結合部の気密性を確保する為の特別のパッキンが必要とならず、その分、部品点数が少なくてすむ。
[Invention of Claim 4]
In the invention according to claims 1 to 3,
“A set of the right side wall for the combustion chamber and the right side wall for heat exchange, a set of the left side wall for the combustion chamber and the left side wall for heat exchange, a set of the rear side wall for the combustion chamber and the rear side wall for the heat exchanger” In the case where the circumferential boundary portions of the single plates constituting each of the pairs are joined by goby folding caulking, the connecting portions of the single plates are joined by highly airtight goat folding caulking. Therefore, no special packing is required to ensure the airtightness of the connecting portion, and the number of parts can be reduced accordingly.
[請求項5に係る発明]
請求項1から4に係る発明に於いて、
『前記熱交用前側壁は、前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と前記熱交用左側壁の組の各組を構成する一枚板に対して、ビスで着脱可能に取り付けられている』ものでは、ビスを外すと、熱交用前側壁を取り外すことができ、これにより、熱交換部の内部のメンテナンスを容易に行なうことができる。
[Invention of Claim 5]
In the invention according to claims 1 to 4,
“The front wall for heat exchange is a single plate constituting the set of the right side wall for the combustion chamber and the right side wall for heat exchange, and the set of the left side wall for the combustion chamber and the left side wall for heat exchange. On the other hand, in the case of “attached detachably with screws”, when the screws are removed, the front wall for heat exchange can be removed, whereby maintenance inside the heat exchange part can be easily performed.
[請求項6に係る発明]
請求項1から請求項5に係る発明に於いて、
『前記排気ダクト部は、ダクト用右側壁及びダクト用左側壁と、ダクト用後側壁と、更に、ダクト用天井壁との四壁で包囲された下方及び前方に開放する排気通路を備えており、
前記ダクト用右側壁と前記燃焼室用右側壁の組、前記ダクト用左側壁と前記燃焼用左側壁の組、前記ダクト用後側壁と前記熱交用後側壁の組、の各組の夫々は、一枚板で構成されている』ものとすれば、ガス燃焼室から排気ダクト部までの構成壁のうち、上下に繋がる構成壁が一枚板で構成され、給湯機本体全体の高さ寸法の精度が高くなる。
[Invention of Claim 6]
In the invention according to claims 1 to 5,
“The exhaust duct section includes an exhaust passage that is surrounded by four walls including a duct right side wall, a duct left side wall, a duct rear side wall, and a duct ceiling wall and opens downward and forward. ,
Each of the set of the right side wall for the duct and the right side wall for the combustion chamber, the set of the left side wall for the duct and the left side wall for combustion, the set of the rear side wall for the duct and the rear side wall for heat exchange, `` It is composed of a single plate '', among the constituent walls from the gas combustion chamber to the exhaust duct part, the constituent walls connected to the top and bottom are composed of a single plate, and the height dimension of the whole water heater body The accuracy of.
[請求項7に係る発明]
前記請求項6に係る発明に於いて、
『前記排気ダクト部の前記ダクト用天井壁は、前記熱交用後側壁と前記ダクト用後側壁の組を構成する前記一枚板が延長されたものである』構成とすることができる。
このものでは、ダクト用天井壁とダクト用後側壁と更に熱交用後側壁とが一枚板で構成されるから、該一枚板を曲げ加工するだけで前記ダクト用天井壁やダクト用後側壁等を構成することができ、ダクト用天井壁とダクト用後側壁等を結合する為の特別な作業が不要になる。
[Invention of Claim 7]
In the invention according to
“The duct ceiling wall of the exhaust duct portion may be formed by extending the single plate constituting the set of the rear wall for heat exchange and the rear wall for duct”.
In this case, the duct ceiling wall, the duct rear side wall, and the heat exchange rear side wall are formed of a single plate, so that the duct ceiling wall and the duct rear wall can be simply formed by bending the single plate. A side wall etc. can be comprised and the special operation | work for joining the ceiling wall for ducts and the rear side wall for ducts etc. becomes unnecessary.
[請求項8に係る発明]
請求項1〜6に係る発明に於いて、
『前記排気ダクト部の排気通路下流端たる排気口(51)に対して前方に接続される排気口カバー(6)の排気筒(60)は、前記ケーシング(9)に開設された排気用窓(91)に挿入される構成であり、
前記排気口カバー(6)と前記熱交用前側壁は一枚板で構成されていると共に、該一枚板を絞り加工することにより前記排気筒(60)が形成されている』ものでは、前記一枚板を絞り加工することによって排気筒(60)が形成されるから、熱交用前側壁と独立した排気口カバー(6)を製作する必要がなく、部品点数の減少を図ることが出来ると共に、部品管理を簡素化することができる。
[Invention of Claim 8]
In the invention which concerns on Claims 1-6,
“The exhaust pipe (60) of the exhaust port cover (6) connected forward with respect to the exhaust port (51) at the downstream end of the exhaust passage of the exhaust duct portion is an exhaust window opened in the casing (9). (91) is inserted,
The exhaust port cover (6) and the heat exchange front side wall are formed of a single plate, and the exhaust pipe (60) is formed by drawing the single plate. '' Since the exhaust tube (60) is formed by drawing the single plate, there is no need to manufacture the exhaust port cover (6) independent of the front wall for heat exchange, and the number of parts can be reduced. It is possible to simplify the parts management.
本発明は次の特有の効果を有する。
ガス燃焼室と熱交換部の構成壁のうち、上下に繋がる構成の夫々は一枚板で構成されているから、上下に分割されたガス燃焼室と熱交換部を組立てる既述従来のものと相違し、ガス燃焼室と熱交換部の結合体全体の高さ寸法が組立て誤差等によってバラつくことが少なく、その寸法精度が向上する。よって、通水管(42)(42)の上流端(420)への銅管の配管接続の作業等が円滑に行なえる。
請求項2に係る発明では、各一枚板が全て熱膨張率の等しい同一材料で構成されているから、ガスの燃焼・消火に伴って各一枚板等が同じ割合で熱膨張と収縮を繰り返す。これにより、各一枚板相互の結合部に熱応力が作用しないから、前記結合部が経年的に破損する心配が少なくなる。
The present invention has the following specific effects.
Of the constituent walls of the gas combustion chamber and the heat exchanging section, each of the configurations connected to the upper and lower sides is composed of a single plate, so that the gas combustion chamber divided into the upper and lower parts and the heat exchanging section are assembled as described above. In contrast, the overall height dimension of the combined body of the gas combustion chamber and the heat exchanging portion is less likely to vary due to assembly errors or the like, and the dimensional accuracy is improved. Therefore, the operation of connecting the copper pipe to the upstream end (420) of the water pipes (42) and (42) can be performed smoothly.
In the invention according to
請求項3に係る発明では、燃焼室用右側壁と熱交用右側壁を構成する一枚板、及び、燃焼室用左側壁と熱交用左側壁を構成する一枚板がステンレス材料で構成されているから、銅材料の一枚板に比べて機械的強度が向上する。又、銅材料で構成する場合に比べて耐熱性が向上し、経年劣化を防止することができる。更に、既述したように、前記左右の一枚板と通水管(42)(42)は実質的に非結合状態にあるから、ガスの燃焼・消火に伴って通水管(42)(42)が長さ方向に熱膨張と収縮を繰り返しても、前記左右の一枚板に対する通水管(42)(42)の貫通部に過大な力が作用せず、熱交換部の破損防止が図れる。
In the invention according to
請求項4に係る発明では、各一枚板相互の結合部が気密性の高いハゼ折りカシメによって結合されているから、該結合部の気密性を確保する為の特別のパッキンが必要とならず、その分、部品点数が少なくてすむ。
請求項5に係る発明では、ビスの取り外しによって熱交用前側壁を除去することができるから、熱交換部の内部のメンテナンスを容易に行なうことができる。
請求項6に係る発明では、既述したように、ガス燃焼室から排気ダクト部までの構成壁のうち、上下に繋がる構成壁が一枚板で構成され、給湯機本体全体の高さ寸法の精度が高くなる。
In the invention which concerns on
In the invention which concerns on
In the invention according to
請求項7に係る発明では、一枚板を曲げ加工するだけで前記ダクト用天井壁やダクト用後側壁を構成することができるから、ダクト用天井壁とダクト用後側壁等を結合する為の特別な作業が不要になる。
請求項8に係る発明では、排気口カバー(6)と熱交用前側壁は一枚板で構成されているから、独立した排気口カバー(6)を製作する必要がなく、部品点数の減少を図ることが出来ると共に、部品管理を簡素化することができる。
In the invention according to claim 7, the duct ceiling wall and the duct rear wall can be formed by simply bending a single plate, so that the duct ceiling wall and the duct rear wall can be combined. No special work is required.
In the invention according to claim 8, since the exhaust port cover (6) and the front wall for heat exchange are constituted by a single plate, it is not necessary to manufacture an independent exhaust port cover (6), and the number of parts is reduced. And parts management can be simplified.
以下に、本発明を実施するための最良の形態について添付図面を参照しながら説明する。
図1,図2に示すように、本実施の形態に係る給湯機は、ガス燃焼室(3A)と、その上方の熱交換器(4)の配設部たる熱交換部(4A)と、前記熱交換器(4)の上方に水平配設される整流翼(55)とその上方のダクト用天井壁(54)との間に形成される排気ダクト部(56)とが下方からこの順序で設けられた構成を有している。
The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
As shown in FIG. 1 and FIG. 2, the water heater according to the present embodiment includes a gas combustion chamber (3A), a heat exchange section (4A) as an arrangement section of the heat exchanger (4) thereabove, The exhaust duct portion (56) formed between the rectifying blade (55) horizontally disposed above the heat exchanger (4) and the duct ceiling wall (54) thereabove is arranged in this order from below. It has the structure provided in.
以下、各部の詳細を説明する。
[ガス燃焼室(3A)]
ガス燃焼室(3A)は、バーナブロック(2)の配設部であり、燃焼室用右側壁(33)及び燃焼室用左側壁(34)と、燃焼室用前側壁(35)及び燃焼室用後側壁(36)と、更に燃焼室用底壁(37)で包囲された上方開放の矩形箱状に形成されている。又、図1,図3に示すように、前記燃焼室用底壁(37)から燃焼室用後側壁(36)を経て後述のダクト天井壁(54)に至る全域の両側縁部(E)(E)は、燃焼室用左側壁(34)と後述の熱交用左側壁(46)及びダクト用左側壁(58)を構成する一枚板、及び、燃焼室用右側壁(33)と後述の熱交用右側壁(45)及びダクト用右側壁(57)を構成する一枚板の周縁部(G)に対してカシメ部(H)(図3参照)で固定されている。
又、図1,2に示すように、燃焼室用底壁(37)に開設された給気口(370)には給気ファン(F)の吐出口が接続されている。
Details of each part will be described below.
[Gas combustion chamber (3A)]
The gas combustion chamber (3A) is an arrangement part of the burner block (2), the combustion chamber right side wall (33) and the combustion chamber left side wall (34), the combustion chamber front side wall (35) and the combustion chamber. It is formed in a rectangular box shape that is open upward and surrounded by a rear wall (36) for use and a bottom wall (37) for combustion chamber. As shown in FIGS. 1 and 3, both side edges (E) of the entire region from the combustion chamber bottom wall (37) to the duct ceiling wall (54) described later through the combustion chamber rear wall (36). (E) is a single plate constituting the left side wall for combustion chamber (34), the left side wall for heat exchange (46) and the left side wall for duct (58) described later, and the right side wall for combustion chamber (33). A crimping portion (H) (see FIG. 3) is fixed to a peripheral edge portion (G) of a single plate constituting a heat exchange right side wall (45) and a duct right side wall (57) which will be described later.
As shown in FIGS. 1 and 2, the discharge port of the supply fan (F) is connected to the supply port (370) opened in the bottom wall (37) for the combustion chamber.
ガス燃焼室(3A)に配設されるバーナブロック(2)は、左右方向に並設された扁平バーナ(21)(21)群と、該扁平バーナ(21)(21)群を収納するバーナケース(20)から構成されており、燃焼室用左右側壁(34)(33)及び後述する燃焼室用前側壁(35)の下部並びに燃焼室用底壁(37)の先端起立片(373)には、扁平バーナ(21)(21)にガス供給するためのガス分配器(1)がビス(19)(19)で固定されるようになっている。
上記燃焼室用右側壁(33)及び燃焼室用左側壁(34)には、燃焼室用前側壁(35)の左右両端部がビス(28)(28)で固定される構成であり、該燃焼室用前側壁(35)には、バーナブロック(2)に点火する為の点火装置(39)と、扁平バーナ(21)(21)群に生成される炎を検知する為の炎検知器(38)と、点火確認窓(29)が設けられている。
The burner block (2) disposed in the gas combustion chamber (3A) includes a flat burner (21) (21) group arranged side by side in the left-right direction, and a burner that houses the flat burner (21) (21) group. Composed of the case (20), the left and right side walls (34) and (33) for the combustion chamber, the lower part of the front side wall (35) for the combustion chamber, which will be described later, and the tip standing piece (373) of the bottom wall (37) for the combustion chamber The gas distributor (1) for supplying gas to the flat burners (21) (21) is fixed with screws (19) (19).
The left and right ends of the combustion chamber front side wall (35) are fixed to the combustion chamber right side wall (33) and the combustion chamber left side wall (34) with screws (28) and (28). The combustion chamber front side wall (35) has an ignition device (39) for igniting the burner block (2), and a flame detector for detecting the flame generated in the flat burners (21) (21) group. (38) and an ignition confirmation window (29) are provided.
[熱交換部(4A)]
熱交換部(4A)は、熱交換器(4)の配設部であり、図1〜3に示すように、熱交換器(4)は、横方向に対向する熱交用右側壁(45)及び熱交用左側壁(46)と、前後方向に対向する熱交用前側壁(47)及び熱交用後側壁(48)と、これら各熱交用右側壁(45)〜熱交用後側壁(48)で包囲された矩形状空間内に並設される多数の吸熱フィン(41)(41)と、更に、前記吸熱フィン(41)(41)を貫通する通水管(42)(42)とを具備している。又、上記通水管(42)(42)の両端部は熱交用右側壁(45)と熱交用左側壁(46)を外方に貫通していると共に、該貫通した外部においてU字管(42A)で連結されている。
[Heat exchange part (4A)]
The heat exchange part (4A) is an arrangement part of the heat exchanger (4), and as shown in FIGS. 1 to 3, the heat exchanger (4) has a right side wall (45 ) And the left side wall for heat exchange (46), the front side wall for heat exchange (47) and the rear side wall for heat exchange (48) facing in the front-rear direction, and the right side wall for heat exchange (45) to each for heat exchange. A large number of heat-absorbing fins (41) and (41) arranged in parallel in a rectangular space surrounded by the rear side wall (48), and further, a water pipe (42) (42) passing through the heat-absorbing fins (41) and (41). 42). Further, both ends of the water pipes (42) and (42) penetrate the heat exchange right side wall (45) and the heat exchange left side wall (46) outwardly, and the U-shaped pipes outside the penetrating outside. (42A).
上記熱交用右側壁(45)は既述燃焼室用右側壁(33)及び後述のダクト用右側壁(57)と一枚板で構成され、熱交用左側壁(46)は既述燃焼室用左側壁(34)及び後述のダクト用左側壁(58)と一枚板で構成され、熱交用前側壁(47)は既述燃焼室用前側壁(35)及び後述の排気口カバー(6)と一枚板で構成され、更に、熱交用後側壁(48)は既述燃焼室用後側壁(36)及び後述のダクト用後側壁(542)と一枚板で構成されている。そして、これら各一枚板はステンレス材料で形成されている。一方、熱交換器(4)を構成する吸熱フィン(41)(41),通水管(42)(42)及びU字管(42A)(42A)は銅材料で構成されており、吸熱フィン(41)(41)と通水管(42)(42)及びU字管(42A)(42A)は、リン銅材料から成るロウ材料でロウ付けされている。 The right side wall for heat exchange (45) is composed of a single plate with the right side wall for combustion chamber (33) and the right side wall for duct (57), which will be described later, and the left side wall for heat exchange (46) is combusted as described above. The left side wall for the chamber (34) and the left side wall for the duct (58) to be described later and a single plate, the front wall for heat exchange (47) is the front side wall for the combustion chamber (35) and the exhaust port cover to be described later. (6) and a single plate, and the heat exchange rear side wall (48) is composed of a single plate with the combustion chamber rear side wall (36) and the duct rear side wall (542) described later. Yes. Each of these single plates is made of a stainless material. On the other hand, the endothermic fins (41) and (41), the water pipes (42) and (42), and the U-shaped pipes (42A) and (42A) constituting the heat exchanger (4) are made of a copper material, and the endothermic fins ( 41) (41), the water pipes (42) and (42), and the U-shaped pipes (42A) and (42A) are brazed with a brazing material made of a phosphor copper material.
次に、熱交換器(4)の製作作業を説明する。
図4に示すように、吸熱フィン(41)(41)の透孔(410)(410)に通水管(42)(42)を貫通させると共に、該貫通部に於ける通水管(42)(42)と前記透孔(410)(410)内周の間に線状のロウ材(100)(100)を介在させる。又、左右の一枚板の一部を構成する熱交用右側壁(45)と熱交用左側壁(46)に通水管(42)(42)の両端部を貫通させ、隣接する通水管(42)(42)の外端相互をU字管(42A)(42A)で連結し、この状態で、上記各一枚板,並びに、通水管(42)(42)及び吸熱フィン(41)(41)等の集合体を治具(18)に支持させる。そして、この集合体を、加熱炉内で加熱して前記ロウ材(100)(100)を溶融させる。すると、ロウ材(100)(100)の溶融によって、吸熱フィン(41)(41)と通水管(42)(42)がロウ付けされるが、前記熱交用右側壁(45)や熱交用左側壁(46)を構成する各一枚板はステンレスで構成されているから、該熱交用右側壁(45)や熱交用左側壁(46)に対する通水管(42)(42)の貫通部に溶融したロウ材(100)が流れ込むことがあっても、これら熱交用右側壁(45)や熱交用左側壁(46)と通水管(42)(42)とが実質的にロウ付けされることはない。従って、後述するバーナブロック(2)の点・消火に伴って上記通水管(42)(42)が長さ方向に熱膨張と収縮を繰り返したときには、前記貫通部において、通水管(42)(42)が熱交換用左右側壁熱交用左側壁(46)熱交用右側壁(45)に対して摺動し、これにより、前記貫通部に力学的な負荷が作用しない。よって、熱交換部(4A)の破損防止が図れる。
Next, manufacturing work of the heat exchanger (4) will be described.
As shown in FIG. 4, the water pipes (42) and (42) are passed through the through holes (410) and (410) of the heat sink fins (41) and (41), and the water pipes (42) (42) ( 42) and a linear brazing material (100) (100) are interposed between the inner peripheries of the through holes (410) and (410). In addition, the right and left heat exchange walls (45) and the left wall (46) for heat exchange, which constitute part of the left and right single plates, penetrate both ends of the water pipes (42) and (42), and adjacent water pipes. The outer ends of (42) and (42) are connected to each other by U-shaped pipes (42A) and (42A). In this state, the above-mentioned single plates, water pipes (42) and (42), and heat absorption fins (41) An assembly such as (41) is supported on the jig (18). Then, this assembly is heated in a heating furnace to melt the brazing materials (100) (100). Then, the endothermic fins (41) (41) and the water pipes (42) (42) are brazed by the melting of the brazing material (100) (100), but the right side wall (45) for heat exchange or the heat exchange. Since each single plate constituting the left side wall (46) is made of stainless steel, the right side wall (45) for heat exchanger and the left side wall (46) for heat exchanger of the water pipes (42) (42) Even if the molten brazing material (100) flows into the penetration part, the right side wall for heat exchange (45), the left side wall for heat exchange (46), and the water pipes (42) (42) are substantially It is not brazed. Accordingly, when the water pipe (42) (42) repeats thermal expansion and contraction in the length direction along with the point / fire extinguishing of the burner block (2) described later, the water pipe (42) (42) ( 42) slides with respect to the left and right side wall for heat exchange heat exchange left side wall (46) and the right side wall for heat exchange (45), so that no mechanical load acts on the penetrating portion. Therefore, it is possible to prevent damage to the heat exchange part (4A).
[排気ダクト部(56)]
図1に示すように、熱交換部(4A)の上方に連設される排気ダクト部(56)は、ダクト用右側壁(57)及びダクト用左側壁(58)と、ダクト用後側壁(542)と、更に、ダクト用天井壁(54)を具備している。又、ダクト用天井壁(54)からダクト用後側壁(542)等を経て燃焼室用底壁(37)に至る範囲全体は、ステンレス材料から成る一枚板を曲げ加工して製作されている。
前記ダクト用天井壁(54)と熱交換器(4)の上下間には整流翼(55)が水平に設けられており、図2,図3に示すように、ダクト用天井壁(54)からダクト用後側壁(542)に繋がる部分の内面と整流翼(55)の相互間が排気通路(59)となっている。
[Exhaust duct part (56)]
As shown in FIG. 1, the exhaust duct portion (56) provided above the heat exchanging portion (4A) includes a duct right side wall (57), a duct left side wall (58), and a duct rear side wall ( 542) and a duct ceiling wall (54). The entire range from the duct ceiling wall (54) to the duct rear wall (542) to the combustion chamber bottom wall (37) is manufactured by bending a single plate made of stainless steel. .
Between the top and bottom of the duct ceiling wall (54) and the heat exchanger (4), rectifying blades (55) are horizontally provided. As shown in FIGS. 2 and 3, the duct ceiling wall (54) The exhaust passage (59) is formed between the inner surface of the portion connected to the duct rear side wall (542) and the rectifying blade (55).
図2に示すように、ダクト用天井壁(54)からその円弧状後端部(540)に繋がる範囲は、排気通路(59)の下流端(前端)に向けて前傾姿勢に形成されていると共に、整流翼(55)の上面から後面に至る範囲は、前記ダクト用天井壁(54)から円弧状後端部(540)に繋がる範囲と平行になっている。又、図1に示すように、整流翼(55)は、その両側面(560)(560)が前記ダクト用左右側壁(58)(57)に対してビス(b)(b)で固定されている。 As shown in FIG. 2, the range from the duct ceiling wall (54) to the arcuate rear end (540) is formed in a forward inclined posture toward the downstream end (front end) of the exhaust passage (59). In addition, the range from the upper surface to the rear surface of the rectifying blade (55) is parallel to the range from the duct ceiling wall (54) to the arcuate rear end (540). As shown in FIG. 1, the rectifying blade (55) has both side surfaces (560) and (560) fixed to the right and left side walls (58) and (57) for the duct with screws (b) and (b). ing.
[排気口カバー(6)]
排気ダクト部(56)の下流端の排気口(51)に連設される排気口カバー(6)とその下方の熱交用前側壁(47)及び燃焼室用前側壁(35)は、一枚板で構成されていると共に、該一枚板の上部は前方に絞り加工されることによって前後に貫通する排気筒(60)が形成されている。そして、前記排気筒(60)の先端は、ケーシング(9)を構成するケース本体(92)の前端開口を覆う前面蓋(90)に開設された排気用窓(91)に遊挿されていると共に、前記前面蓋(90)はケース本体(92)の前端開口に対してビス(95)(95)で着脱可能に取り付けられている。
[Exhaust port cover (6)]
The exhaust port cover (6) connected to the exhaust port (51) at the downstream end of the exhaust duct part (56), the heat exchange front side wall (47) and the combustion chamber front side wall (35) below the An exhaust pipe (60) penetrating in the front-rear direction is formed by being made of a single plate and the upper portion of the single plate being drawn forward. The tip of the exhaust tube (60) is loosely inserted into an exhaust window (91) provided in the front lid (90) covering the front end opening of the case body (92) constituting the casing (9). In addition, the front lid (90) is detachably attached to the front end opening of the case body (92) with screws (95) (95).
又、排気口カバー(6)と熱交用前側壁(47)等を構成する一枚板の周縁は既述ビス(28)(28)と他のビス(470)(470)によって、熱交用右側壁(45)及びダクト用右側壁(57)等を構成する右側の一枚板と、熱交用左側壁(46)及びダクト用左側壁(58)等を構成する左側の一枚板、並びにダクト用天井壁(54)の先端起立片(543)に対して取り外し可能状態に固定されている。従って、ビス(470)(470)を取り外すことによって、排気口カバー(6)と熱交用前側壁(47)と燃焼室用前側壁(35)を構成する一枚板を除去すると、熱交換器(4)の内部のメンテナンスが容易に行なえる。
このものでは、熱交用前側壁(47)と排気口カバー(6)を構成する一枚板を絞り加工することによって排気筒(60)を形成し、これにより、独立した排気口カバー(6)の製作を不要にしている。従って、部品点数の減少を図ることが出来ると共に、部品管理を簡素化することができる。
Also, the peripheral edge of the single plate constituting the exhaust port cover (6) and the heat exchange front side wall (47) etc. is heat exchanged by the aforementioned screws (28) (28) and other screws (470) (470). The right single plate constituting the right side wall (45) for the duct and the right side wall (57) for the duct, and the single plate on the left side constituting the left side wall for heat exchange (46) and the left side wall (58) for the duct In addition, it is fixed in a removable state with respect to the standing upright piece (543) of the duct ceiling wall (54). Therefore, by removing the screws (470) (470) and removing the single plate constituting the exhaust port cover (6), the heat exchange front side wall (47), and the combustion chamber front side wall (35), heat exchange is performed. Maintenance inside the vessel (4) can be performed easily.
In this case, the exhaust pipe (60) is formed by drawing a single plate constituting the front wall (47) for heat exchange and the exhaust port cover (6), whereby an independent exhaust port cover (6 ) Is unnecessary. Therefore, the number of parts can be reduced, and the parts management can be simplified.
[使用の実際]
このものでは、バーナブロック(2)を燃焼させて給湯動作を開始させると、バーナブロック(2)からの燃焼排気は、熱交換器(4)を通過して整流翼(55)の傾斜底面(550)に案内され、該整流翼(55)の後端とダクト用天井壁(54)の円弧状後端部(540)の間隙→排気通路(59)→排気口(51)→排気口カバー(6)の経路で流動して大気中に放出される。
一方、通水管(42)(42)を流れる被加熱水は、熱交換器(4)を通過する前記燃焼排気で加熱昇温された後に図示しない給湯場所に供給される。
[Actual use]
In this case, when the hot water supply operation is started by burning the burner block (2), the combustion exhaust from the burner block (2) passes through the heat exchanger (4) and the bottom surface of the rectifying blade (55) is inclined ( 550), the gap between the rear end of the rectifying blade (55) and the arcuate rear end (540) of the ceiling wall (54) for the duct → the exhaust passage (59) → the exhaust port (51) → the exhaust port cover It flows in the route of (6) and is released into the atmosphere.
On the other hand, the heated water flowing through the water pipes (42) and (42) is heated and heated by the combustion exhaust gas passing through the heat exchanger (4) and then supplied to a hot water supply place (not shown).
このものでは、ガス燃焼室(3A)と熱交換部(4A)の構成壁のうち、上下に繋がる燃焼室用右側壁(33)と熱交用右側壁(45)、及び、燃焼室用左側壁(34)と熱交用左側壁(46)、並びに、燃焼室用後側壁(36)と熱交用後側壁(48)の夫々は一枚板で構成されている。従って、上下に分割されたガス燃焼室(3A)と熱交換部(4A)を組立てる既述従来のものと相違し、ガス燃焼室(3A)と熱交換部(4A)の結合体全体の上下寸法が組立て誤差等によってばらつく不都合を低減することができる。よって、通水管(42)の上流端や下流端の配管接続部の上下位置も正確に定まり、これにより、該配管接続部への銅管等の配管接続作業が円滑に行なえる。 In this, among the constituent walls of the gas combustion chamber (3A) and the heat exchange section (4A), the combustion chamber right side wall (33) and the heat exchange right side wall (45) connected to the top and bottom, and the combustion chamber left side Each of the wall (34) and the left side wall (46) for heat exchange, and the rear side wall (36) for the combustion chamber and the rear side wall (48) for heat exchange are constituted by a single plate. Therefore, unlike the above-described conventional assembly of the gas combustion chamber (3A) and the heat exchange part (4A) divided into upper and lower parts, the upper and lower parts of the entire assembly of the gas combustion chamber (3A) and the heat exchange part (4A) are arranged. It is possible to reduce inconvenience that the dimensions vary due to assembly errors or the like. Therefore, the vertical positions of the pipe connection portions at the upstream end and the downstream end of the water flow pipe (42) are also accurately determined, whereby the pipe connection work such as the copper pipe to the pipe connection portion can be performed smoothly.
又、ガス燃焼室(3A)と熱交換部(4A)の上方に形成された排気ダクト部(56)の下流端の(51)に取り付けられる排気口カバー(6)の排気筒(60)とケーシング(9)の前面蓋(90)に開設された排気用窓(91)とが上下方向にズレにくくなり、これにより、前記排気用窓(91)を排気筒(60)に嵌合させる作業が円滑に行なえる。
又、上記実施の形態に係る給湯機では、燃焼室用前側壁(35)と熱交用前側壁(47)及び排気口カバー(6)を構成する一枚板,燃焼室用右側壁(33)と熱交用右側壁(45)及びダクト用右側壁(57)を構成する一枚板,燃焼室用左側壁(34)と熱交用左側壁(46)及びダクト用左側壁(58)を構成する一枚板,燃焼室用底壁(37)からダクト用天井壁(54)に至る範囲を構成する一枚板は、全て同一材料たるステンレス材料で構成されているから、給湯時にこれらが加熱昇温しても、全て同一の熱膨張率で膨張・収縮する。従って、これら各一枚板が熱膨張率の異なった異質な材料で構成されている場合と相違し、これらの結合部たるビス(470)(470)(28)(28)の配設部や、カシメ部(H)に大きな熱応力が作用せず、これら結合部が経年的に破損する心配が少なくなる。
Further, an exhaust pipe (60) of an exhaust port cover (6) attached to the gas combustion chamber (3A) and the downstream end (51) of the exhaust duct part (56) formed above the heat exchange part (4A). The exhaust window (91) established in the front lid (90) of the casing (9) is less likely to be displaced vertically, and thereby the exhaust window (91) is fitted into the exhaust pipe (60). Can be done smoothly.
Further, in the water heater according to the above embodiment, the combustion chamber front side wall (35), the heat exchange front side wall (47), and the single plate constituting the exhaust port cover (6), the combustion chamber right side wall (33 ) And the right side wall (45) for heat exchange and the right side wall (57) for duct, the left side wall for combustion chamber (34), the left side wall for heat exchange (46), and the left side wall for duct (58) The single plate constituting the range from the combustion chamber bottom wall (37) to the duct ceiling wall (54) is all made of the same material, stainless steel. Even if heated and heated, they all expand and contract at the same coefficient of thermal expansion. Therefore, unlike the case where each of these single plates is made of a different material having a different coefficient of thermal expansion, the arrangement of the screws (470), (470), (28), and (28), which are the connecting portions, Therefore, a large thermal stress does not act on the crimped portion (H), and there is less concern that these joint portions will be damaged over time.
[その他]
1.上記実施の形態では、燃焼室用右側壁(33)と熱交用右側壁(45)、燃焼室用左側壁(34)と熱交用左側壁(46)、燃焼室用後側壁(36)と熱交用後側壁(48)、及び燃焼室用前側壁(35)と熱交用前側壁(47)の夫々を、継ぎ目の無い一枚板で構成したが、前記燃焼室用右側壁(33)と熱交用右側壁(45)をハゼ折りカシメで上下に継ぎ合わせた一枚板で構成すると共に、燃焼室用左側壁(34)と熱交用左側壁(46)、燃焼室用後側壁(36)と熱交用後側壁(48)、及び燃焼室用前側壁(35)と熱交用前側壁(47)の夫々も、上記と同様にハゼ折りカシメで上下に継ぎ合わせた一枚板で構成してもよい。
2.上記実施の形態では、ダクト用天井壁(54)を、熱交用後側壁(48)及びダクト用後側壁(542)と共通の一枚板で構成したが、請求項8に係る発明のように、ダクト用天井壁(54)は、排気口カバー(6)の構成壁が延長されたものとしてもよい。即ち、排気口カバー(6)の構成壁を上方に延長すると共に該延長部を後方(ダクト用後側壁(542)方向)に屈曲させ、該後方屈曲部を前記ダクト用天井壁(54)として採用してもよい。
[Other]
1. In the above embodiment, the combustion chamber right side wall (33) and the heat exchange right side wall (45), the combustion chamber left side wall (34) and the heat exchange left side wall (46), the combustion chamber rear side wall (36). The heat exchange rear side wall (48), and the combustion chamber front side wall (35) and the heat exchange front side wall (47) are each constituted by a single plate without a seam. 33) and the right side wall for heat exchange (45) are composed of a single plate joined up and down with goby folding caulking, and the left side wall for combustion chamber (34), the left side wall for heat exchange (46), for combustion chamber Each of the rear side wall (36) and the rear side wall (48) for heat exchange, and the front side wall (35) for combustion chamber and the front side wall (47) for heat exchange were also joined together in the same manner as described above with goby folding caulking. A single plate may be used.
2. In the above embodiment, the duct ceiling wall (54) is configured by a single plate common to the heat exchange rear side wall (48) and the duct rear side wall (542), but as in the invention according to claim 8 In addition, the duct ceiling wall (54) may be formed by extending the constituent wall of the exhaust port cover (6). That is, the constituent wall of the exhaust port cover (6) is extended upward and the extension portion is bent backward (in the direction of the rear side wall (542) for the duct), and the rear bent portion is used as the duct ceiling wall (54). It may be adopted.
(2)・・・バーナブロック
(3A)・・・ガス燃焼室
(4A)・・・熱交換部
(6)・・・排気口カバー
(9)・・・ケーシング
(35)・・・熱交用前側壁
(41)・・・吸熱フィン
(42)・・・通水管
(45)・・・熱交用右側壁
(46)・・・熱交用左側壁
(48)・・・熱交用後側壁
(51)・・・排気口
(54)・・・ダクト用天井壁
(56)・・・排気ダクト部
(57)・・・ダクト用右側壁
(58)・・・ダクト用左側壁
(59)・・・排気通路
(60)・・・先端筒
(91)・・・排気用窓
(542)・・・ダクト用後側壁
(2) ・ ・ ・ Burner block
(3A) ・ ・ ・ Gas combustion chamber
(4A) ・ ・ ・ Heat exchange part
(6) ... Exhaust port cover
(9) ... Casing
(35) ・ ・ ・ Front side wall for heat exchange
(41) ... Endothermic fin
(42) ... Water pipe
(45) ・ ・ ・ Right wall for heat exchange
(46) ... Left side wall for heat exchange
(48) ・ ・ ・ Back wall for heat exchange
(51) ... Exhaust port
(54) ・ ・ ・ Duct ceiling wall
(56) ... Exhaust duct
(57) ・ ・ ・ Right side wall for duct
(58) ・ ・ ・ Left wall for duct
(59) ... Exhaust passage
(60) ・ ・ ・ Tip tube
(91) ... Exhaust window
(542) ・ ・ ・ Duct rear wall
Claims (8)
前記ガス燃焼室は、燃焼室用右側壁及び燃焼室用左側壁と燃焼室用前側壁及び燃焼室用後側壁の四側壁で包囲され且つバーナブロック(2)を収納する上方開放の空間であり、
前記熱交換部は、熱交用右側壁及び熱交用左側壁と熱交用前側壁及び熱交用後側壁の四側壁で包囲された矩形状空間に配設された多数の吸熱フィン(41)(41)と該吸熱フィン(41)(41)を貫通する通水管(42)(42)で構成されている給湯機に於いて、
前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と前記熱交用左側壁の組、前記燃焼室用後側壁と前記熱交用後側壁の組の、前記燃焼室用前側壁と前記熱交用前側壁の組の、各組の夫々は、一枚板で構成されている、給湯機。 A water heater in which a gas combustion chamber, a heat exchange part, and an exhaust duct part are arranged in this order from below in the casing (9),
The gas combustion chamber is an open space that is surrounded by the four sidewalls of the combustion chamber right side wall, the combustion chamber left side wall, the combustion chamber front side wall, and the combustion chamber rear side wall, and houses the burner block (2). ,
The heat exchanging unit includes a plurality of heat-absorbing fins (41) disposed in a rectangular space surrounded by the right side wall for heat exchange, the left side wall for heat exchange, and the four side walls of the front side wall for heat exchange and the rear side wall for heat exchange. ) (41) and a water heater comprising a water pipe (42) (42) passing through the heat-absorbing fins (41) (41),
The set of the right side wall for the combustion chamber and the right side wall for heat exchange, the set of the left side wall for combustion chamber and the left side wall for heat exchange, the set of the rear side wall for the combustion chamber and the rear side wall for heat exchange, Each of the sets of the set of the front side wall for the combustion chamber and the front side wall for heat exchange is a hot water heater configured by a single plate.
前記各一枚板の夫々は、全て同一材料で構成されている、給湯機。 In the water heater according to claim 1,
Each of the single plates is a water heater that is composed of the same material.
前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と前記熱交用左側壁の組、の各組を構成する一枚板の夫々はステンレス材料で構成され、
前記通水管(42)(42)は、前記熱交用右側壁及び前記熱交用左側壁を貫通していると共に、該通水管(42)(42)と前記吸熱フィン(41)(41)は銅材料で構成されており、
前記吸熱フィン(41)(41)に対する通水管(42)(42)の貫通部は、ロウ付けされている、給湯機。 In the water heater according to claim 1 or 2,
Each of the single plates constituting each set of the set of the right side wall for the combustion chamber and the right side wall for heat exchange, the set of the left side wall for the combustion chamber and the left side wall for heat exchange is made of a stainless material,
The water pipes (42) and (42) pass through the right side wall for heat exchange and the left side wall for heat exchange, and the water pipes (42) (42) and the heat absorbing fins (41) (41). Is made of copper material,
A water heater, wherein the through-holes of the water pipes (42) and (42) with respect to the heat absorption fins (41) and (41) are brazed.
前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と熱交用左側壁の組、前記燃焼室用後側壁と前記熱交用後側壁の組、の各組の夫々を構成する各一枚板相互の周方向の境界部は、ハゼ折りカシメによって結合されている、給湯機。 In the water heater according to any one of claims 1 to 3,
Each set of the right side wall for the combustion chamber and the right side wall for heat exchange, the left side wall for the combustion chamber and the left side wall for heat exchange, the rear side wall for the combustion chamber and the rear side wall for heat exchange Each of the single-plates constituting each of the hot water heaters connected to each other in the circumferential direction is joined by gouge folding.
前記熱交用前側壁は、前記燃焼室用右側壁と前記熱交用右側壁の組、前記燃焼室用左側壁と前記熱交用左側壁の組の各組を構成する一枚板に対して、ビスで着脱可能に取り付けられている、給湯機。 In the water heater according to claim 1 to 4,
The front wall for heat exchange is a single plate constituting each set of the right side wall for combustion chamber and the right side wall for heat exchange, and the set of left side wall for combustion chamber and the left side wall for heat exchange. The water heater is detachably attached with screws.
前記排気ダクト部は、ダクト用右側壁及びダクト用左側壁と、ダクト用後側壁と、更に、ダクト用天井壁との四壁で包囲された下方及び前方に開放する排気通路を備えており、
前記ダクト用右側壁と前記燃焼室用右側壁の組、前記ダクト用左側壁と前記燃焼用左側壁の組、前記ダクト用後側壁と前記熱交用後側壁の組、の各組の夫々は、一枚板で構成されている、給湯機。 In the water heater according to claim 1 to 5,
The exhaust duct portion includes a duct right side wall, a duct left side wall, a duct rear wall, and an exhaust passage that opens downward and forward surrounded by four walls of a duct ceiling wall,
Each of the set of the right side wall for the duct and the right side wall for the combustion chamber, the set of the left side wall for the duct and the left side wall for combustion, the set of the rear side wall for the duct and the rear side wall for heat exchange, A water heater that consists of a single plate.
前記排気ダクト部の前記ダクト用天井壁は、前記熱交用後側壁と前記ダクト用後側壁の組を構成する前記一枚板が延長されたものである、給湯機。 In the water heater according to claim 6,
The duct ceiling wall of the exhaust duct portion is a water heater in which the single plate constituting the set of the rear wall for heat exchange and the rear wall for duct is extended.
前記排気ダクト部の排気通路下流端たる排気口(51)に対して前方に接続される排気口カバー(6)の排気筒(60)は、前記ケーシング(9)に開設された排気用窓(91)に挿入される構成であり、
前記排気口カバー(6)と前記熱交用前側壁は一枚板で構成されていると共に、該一枚板を絞り加工することにより前記排気筒(60)が形成されている、給湯機。 In the water heater according to any one of claims 1 to 6,
The exhaust pipe (60) of the exhaust port cover (6) connected forward with respect to the exhaust port (51), which is the downstream end of the exhaust passage of the exhaust duct portion, is an exhaust window opened in the casing (9) ( 91),
The water heater according to claim 6, wherein the exhaust port cover (6) and the front wall for heat exchange are formed of a single plate, and the exhaust pipe (60) is formed by drawing the single plate.
Priority Applications (4)
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JP2004104466A JP4544512B2 (en) | 2004-03-31 | 2004-03-31 | Water heater |
TW094106241A TW200533866A (en) | 2004-03-31 | 2005-03-02 | Hot-water supplying machine |
KR1020050019185A KR100643462B1 (en) | 2004-03-31 | 2005-03-08 | Hot water supplier |
CNB2005100542951A CN100538173C (en) | 2004-03-31 | 2005-03-21 | Hot-warer supplying machine |
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JP2004104466A Expired - Fee Related JP4544512B2 (en) | 2004-03-31 | 2004-03-31 | Water heater |
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JP (1) | JP4544512B2 (en) |
KR (1) | KR100643462B1 (en) |
CN (1) | CN100538173C (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105889916A (en) * | 2015-02-18 | 2016-08-24 | 林内株式会社 | Combustion device |
CN116892844A (en) * | 2020-10-09 | 2023-10-17 | 黄强初 | Stainless steel quick heat exchange device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10533742B2 (en) * | 2016-01-19 | 2020-01-14 | Noritz Corporation | Burner case and burner device provided with the burner case |
JP6739751B2 (en) * | 2016-08-26 | 2020-08-12 | 株式会社ノーリツ | Burner case manufacturing method and burner case |
WO2019064957A1 (en) | 2017-09-26 | 2019-04-04 | 株式会社ノーリツ | Hot water device |
-
2004
- 2004-03-31 JP JP2004104466A patent/JP4544512B2/en not_active Expired - Fee Related
-
2005
- 2005-03-02 TW TW094106241A patent/TW200533866A/en unknown
- 2005-03-08 KR KR1020050019185A patent/KR100643462B1/en not_active IP Right Cessation
- 2005-03-21 CN CNB2005100542951A patent/CN100538173C/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105889916A (en) * | 2015-02-18 | 2016-08-24 | 林内株式会社 | Combustion device |
CN105889916B (en) * | 2015-02-18 | 2018-06-05 | 林内株式会社 | Burner |
CN116892844A (en) * | 2020-10-09 | 2023-10-17 | 黄强初 | Stainless steel quick heat exchange device |
Also Published As
Publication number | Publication date |
---|---|
JP4544512B2 (en) | 2010-09-15 |
TW200533866A (en) | 2005-10-16 |
KR100643462B1 (en) | 2006-11-10 |
CN100538173C (en) | 2009-09-09 |
TWI305260B (en) | 2009-01-11 |
KR20060043522A (en) | 2006-05-15 |
CN1676993A (en) | 2005-10-05 |
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