JP2017219299A - Heat source machine - Google Patents

Heat source machine Download PDF

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JP2017219299A
JP2017219299A JP2016121533A JP2016121533A JP2017219299A JP 2017219299 A JP2017219299 A JP 2017219299A JP 2016121533 A JP2016121533 A JP 2016121533A JP 2016121533 A JP2016121533 A JP 2016121533A JP 2017219299 A JP2017219299 A JP 2017219299A
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Prior art keywords
side plate
combustion
electrode
packing
burner
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JP6691439B2 (en
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卓史 小代
Takuji Koshiro
卓史 小代
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Rinnai Corp
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Rinnai Corp
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Priority to US15/598,437 priority Critical patent/US10006659B2/en
Priority to CN201710356237.7A priority patent/CN107461923B/en
Priority to EP17173074.0A priority patent/EP3258172B1/en
Priority to KR1020170069173A priority patent/KR102318280B1/en
Publication of JP2017219299A publication Critical patent/JP2017219299A/en
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Publication of JP6691439B2 publication Critical patent/JP6691439B2/en
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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
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • F23Q3/006—Details
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • 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
    • F24H9/06—Arrangement of mountings or supports for heaters, e.g. boilers, other than space heating radiators
    • 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
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05005—Sealing means between wall tiles or panels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Gas Burners (AREA)
  • Details Of Fluid Heaters (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)

Abstract

PROBLEM TO BE SOLVED: To achieve high sealability by suppressing expansion of a packing 65 in being compressed, in a heat source machine in which an electrode component 6 including an electrode 63 and an insulator 64are mounted on a side plate 21 of a combustion housing 2 by fastening a pressing plate 66 superposed to an outer face of the flange portion 64a to the side plate 21 in a state of disposing the packing 65 between the flange portion 64a of the insulator 64and the side plate 21.SOLUTION: Upper and lower water pipes 53 configuring a part of a water jacket are mounted on a side plate 21 in a state of being positioned at an upper side and a lower side of a mounting part of an electrode component 6. Upper and lower side edge portions of a packing 65 are kept into contact with upper and lower swelling portions 53a formed on the side plate 21 and swelling outward so that the upper and lower water pipes 53 are fitted therein in a case when the upper and lower water pipes 53 are mounted on an inner face of the side plate 21, and kept into contact with the upper and lower pipes 53 when the upper and lower water pipes 53 are mounted on an inner face of the side plate 21.SELECTED DRAWING: Figure 6

Description

本発明は、バーナと、バーナの燃焼面から噴出する混合気の燃焼空間を囲う燃焼筐と、燃焼筐内に配置した水を加熱する熱交換器とを備える熱源機に関する。   The present invention relates to a heat source apparatus including a burner, a combustion casing that surrounds a combustion space of an air-fuel mixture ejected from a combustion surface of the burner, and a heat exchanger that heats water disposed in the combustion casing.

従来、この種の熱源機として、燃焼筐の一側の側板のバーナと熱交換器との間の部分に、当該側板に形成した透孔を通して燃焼筐内に突出する点火電極やフレームロッド等の電極と、電極を挿通固定した碍子とを有する電極部品を装着したものが知られている（例えば、特許文献１参照）。このもので、碍子は、一側の側板の透孔の周囲の部分の外面に重なるフランジ部を有し、このフランジ部と一側の側板との間にパッキンを介設した状態でフランジ部の外面に重なる押え板を一側の側板に締結することにより電極部品が一側の側板に装着される。   Conventionally, as this type of heat source device, an ignition electrode, a frame rod, or the like that protrudes into the combustion housing through a through hole formed in the side plate at a portion between the burner of the side plate on one side of the combustion housing and the heat exchanger. A device having an electrode component including an electrode and an insulator through which the electrode is inserted and fixed is known (see, for example, Patent Document 1). In this structure, the insulator has a flange portion that overlaps the outer surface of the portion around the through hole of the side plate on one side, and the flange portion is in a state where packing is interposed between the flange portion and the side plate on the one side. An electrode component is mounted on the side plate on one side by fastening a presser plate overlapping the outer surface to the side plate on one side.

上記従来例のものにおいて、パッキンを使用するのは、燃焼筐内の燃焼ガスが透孔を通して外部に漏れ出るのを防止するためである。然し、従来は、パッキンの周縁が拘束されていないため、押え板の締結でパッキンを圧縮したときに、パッキンが周囲に広がって、パッキン内部の圧縮応力を十分に高くすることができず、シール性が悪くなることがある。   In the above conventional example, the packing is used in order to prevent the combustion gas in the combustion casing from leaking outside through the through hole. However, conventionally, since the periphery of the packing is not constrained, when the packing is compressed by fastening the presser plate, the packing spreads to the periphery, and the compressive stress inside the packing cannot be sufficiently increased, and the seal May be worse.

また、従来、熱源機として、特許文献２により、燃焼筐のバーナと熱交換器との間の部分に、燃焼筐を冷却するために熱交換器に接続されるウォータジャケットを設けたものも知られている。ウォータジャケットの一部は、燃焼筐の側板に取付ける水管で構成されている。   Also, conventionally, as a heat source device, according to Patent Document 2, a water jacket connected to a heat exchanger for cooling the combustion housing is provided in a portion between the burner of the combustion housing and the heat exchanger. It has been. A part of the water jacket is composed of a water pipe attached to the side plate of the combustion housing.

実開平３−３００５６号公報Japanese Utility Model Publication No.3-30056 欧州特許出願公開第２８１１１４１号明細書European Patent Application Publication No. 2811141

本発明は、パッキンが圧縮したときに広がることを、燃焼筐の側板に取付けるウォータジャケット用の水管を利用して抑制し、良好なシール性が得られるようにした熱源機を提供することをその課題としている。   It is an object of the present invention to provide a heat source device that suppresses spreading when the packing is compressed by using a water tube for a water jacket attached to a side plate of a combustion housing, and that provides a good sealing property. It is an issue.

上記課題を解決するために、バーナと、バーナの燃焼面から噴出する混合気の燃焼空間を囲う燃焼筐と、燃焼筐内に配置した水を加熱する熱交換器とを備える熱源機であって、燃焼筐のバーナと熱交換器との間の部分に、燃焼筐を冷却するために熱交換器に接続されるウォータジャケットが設けられると共に、燃焼筐の一側の側板のバーナと熱交換器との間の部分に、当該側板に形成した透孔を通して燃焼筐内に突出する電極と、電極を挿通固定した碍子とを備える電極部品が装着され、碍子は、一側の側板の透孔の周囲の部分の外面に重なるフランジ部を有し、このフランジ部と一側の側板との間にパッキンを介設した状態でフランジ部の外面に重なる押え板を一側の側板に締結することにより電極部品が一側の側板に装着されるものにおいて、本願の第１発明は、一側の側板に、電極部品の装着箇所の上側と下側に位置させて、ウォータジャケットの一部を構成する上下の水管が取付けられ、上下の水管が一側の側板の内面に取付けられる場合は、一側の側板に形成した上下の水管が夫々凹入される外方に膨出した上下の膨出部に、上下の水管が一側の側板の外面に取付けられる場合は、上下の水管に、パッキンの上下の側縁部が当接することを特徴とし、本願の第２発明は、一側の側板の内面に、電極部品の装着箇所の上側と下側に位置させて、ウォータジャケットの一部を構成する上下の水管が取付けられ、一側の側板に、上下の水管が共に凹入される外方に膨出した膨出部が形成され、この膨出部の上半部に、外方に最も膨出した上部から下方に向けて内方に傾斜した傾斜部が形成されると共に、膨出部の下半部に、外方に最も膨出した下部から上方に向けて内方に傾斜した傾斜部が形成され、膨出部に、上半部の傾斜部と下半部の傾斜部との間に位置させて、電極を通す透孔が形成され、パッキンの上部と下部が夫々上半部と下半部の傾斜部に接することを特徴とする。   In order to solve the above-mentioned problem, a heat source apparatus comprising a burner, a combustion enclosure that surrounds a combustion space of an air-fuel mixture ejected from the combustion surface of the burner, and a heat exchanger that heats water disposed in the combustion enclosure. A water jacket connected to the heat exchanger for cooling the combustion casing is provided in a portion between the burner of the combustion casing and the heat exchanger, and the burner and the heat exchanger on the side plate on one side of the combustion casing are provided. An electrode component including an electrode protruding into the combustion housing through a through hole formed in the side plate and an insulator through which the electrode is inserted and fixed is attached to a portion between the side plate and the insulator. By fastening the presser plate that overlaps the outer surface of the flange part to the side plate on one side with a flange part that overlaps the outer surface of the surrounding part, with packing interposed between this flange part and one side plate For electrode parts mounted on one side plate In the first invention of the present application, the upper and lower water pipes constituting a part of the water jacket are attached to one side plate on the upper side and the lower side of the mounting part of the electrode parts. When attached to the inner surface of the side plate on the side, the upper and lower water tubes are formed on the side plate on one side, and the upper and lower water tubes are on the outer surface of the side plate on the one side. The upper and lower water pipes are in contact with the upper and lower side edges of the packing, and the second invention of the present application is directed to the inner surface of the side plate on one side and the upper and lower sides of the mounting part of the electrode parts. The upper and lower water pipes that constitute a part of the water jacket are mounted on the side, and the side plate on one side is formed with an outwardly bulging portion into which the upper and lower water pipes are recessed. In the upper half of the bulging part, the inclination is inclined inward from the uppermost bulging part outward Is formed in the lower half of the bulging portion, and an inclined portion that is inclined inward from the lowermost bulging portion outward is formed, and the upper half is inclined in the bulging portion. A through hole is formed between the upper portion and the lower half inclined portion, and the upper and lower portions of the packing are in contact with the upper half portion and the lower half inclined portion, respectively.

第１発明によれば、パッキンの上下の側縁部が上下の膨出部又は上下の水管に当接するため、押え板の締結でパッキンを圧縮したときに、パッキンが上下に広がることを抑制できる。また、第２発明によれば、パッキンの上部と下部が膨出部の上半部と下半部の傾斜部に接するため、押え板の締結でパッキンを圧縮したときに、傾斜部からの圧縮反力の上下方向成分でパッキンの上部には下向き、パッキンの下部には上向きの力が作用し、パッキンが上下に広がることを抑制できる。従って、第１と第２の何れの発明においても、パッキン内部の圧縮応力を十分に高くすることができ、良好なシール性が得られる。   According to the first invention, since the upper and lower side edge portions of the packing are in contact with the upper and lower bulging portions or the upper and lower water pipes, it is possible to suppress the packing from spreading up and down when the packing is compressed by fastening the presser plate. . Further, according to the second invention, since the upper and lower portions of the packing are in contact with the inclined portions of the upper half and the lower half of the bulging portion, when the packing is compressed by fastening the pressing plate, the compression from the inclined portion is performed. It is possible to suppress the upward and downward force acting on the upper portion of the packing and the upward force on the lower portion of the packing due to the vertical component of the reaction force, thereby preventing the packing from spreading up and down. Therefore, in both the first and second inventions, the compressive stress inside the packing can be made sufficiently high, and good sealing performance can be obtained.

本発明の第１実施形態の熱源機の斜視図。The perspective view of the heat source machine of 1st Embodiment of this invention. 図１とは反対側から見た第１実施形態の熱源機の斜視図。The perspective view of the heat-source equipment of 1st Embodiment seen from the opposite side to FIG. 図１のＩＩＩ−ＩＩＩ線で切断した断面図。Sectional drawing cut | disconnected by the III-III line | wire of FIG. 図３のＩＶ−ＩＶ線で切断した断面図。Sectional drawing cut | disconnected by the IV-IV line of FIG. 第１実施形態の熱源機の要部の分解状態の斜視図。The perspective view of the decomposition | disassembly state of the principal part of the heat-source equipment of 1st Embodiment. 第１実施形態の熱源機の要部の拡大断面図。The expanded sectional view of the important section of the heat source machine of a 1st embodiment. 第２実施形態の熱源機の要部の拡大断面図。The expanded sectional view of the important section of the heat source machine of a 2nd embodiment.

図１乃至図４を参照して、本発明の第１実施形態の熱源機は、燃焼面１ａを下方に向けた下向き姿勢のバーナ１と、燃焼面１ａから噴出する混合気の燃焼空間を囲う、バーナ１の下側の燃焼筐２とを備えている。燃焼筐２は、前側と後側の側板２１，２２と、横方向一方と他方の側板２３，２４で構成されている。また、燃焼筐２内の下部には、水を加熱する給湯用又は暖房用の熱交換器３が収納されている。   1 to 4, the heat source apparatus according to the first embodiment of the present invention surrounds a burner 1 in a downward posture with the combustion surface 1a facing downward, and a combustion space of the air-fuel mixture ejected from the combustion surface 1a. And a combustion housing 2 on the lower side of the burner 1. The combustion housing 2 is composed of front and rear side plates 21 and 22 and one and the other side plates 23 and 24 in the horizontal direction. Also, a heat exchanger 3 for hot water supply or heating for heating water is housed in the lower part of the combustion housing 2.

バーナ１は、下面を開放面とするバーナボディ１１と、バーナボディ１１の下面に装着した、燃焼面１ａを構成する燃焼板１２とで構成される。バーナボディ１１には、混合気を供給するファン４を接続する流入口１１１が開設されている。流入口１１１には、ファン４停止時にバーナボディ１１内に残留する混合気がファン４側に逆流することを阻止する逆止弁１３が装着されている。逆止弁１３は、流入口１１１に嵌め込まれる弁筐１３１と、バーナボディ１１内を向く弁筐１３１の開口部に開閉自在に軸着された弁板１３２とで構成されている。また、燃焼板１２は、中央部に大きな開口部を有しており、この開口部に耐熱繊維の織布１２１を装着すると共にその上に多数の分布孔を形成した分布板１２２を重ね合わせて、バーナボディ１１内の混合気が分布板１２２と織布１２１とを介して噴出して全一次燃焼するようにしている。   The burner 1 includes a burner body 11 having a lower surface as an open surface, and a combustion plate 12 that is attached to the lower surface of the burner body 11 and that constitutes a combustion surface 1a. The burner body 11 is provided with an inlet 111 for connecting the fan 4 that supplies the air-fuel mixture. The inflow port 111 is equipped with a check valve 13 for preventing the air-fuel mixture remaining in the burner body 11 from flowing backward to the fan 4 side when the fan 4 is stopped. The check valve 13 includes a valve casing 131 fitted into the inflow port 111 and a valve plate 132 pivotally attached to an opening of the valve casing 131 facing the inside of the burner body 11 so as to be opened and closed. The combustion plate 12 has a large opening at the center, and a heat-resistant fiber woven fabric 121 is attached to the opening and a distribution plate 122 having a number of distribution holes formed thereon is overlaid. The air-fuel mixture in the burner body 11 is jetted through the distribution plate 122 and the woven fabric 121 so that all primary combustion occurs.

熱交換器３は、多数のフィン３１とこれらフィン３１を貫通する複数の吸熱管３２とを備えるフィンチューブ型熱交換器で構成されている。燃焼筐２の横方向一方と他方の側板２３，２４の外面には、隣り合う２本の吸熱管３２，３２の接続路を各側板２３，２４との間に画成する接続蓋３３が複数取付けられており、全ての吸熱管３２が直列に接続される。また、上流端の吸熱管３２に接続される接続路を横方向一方の側板２３との間に画成する接続蓋３３には入水口３４が設けられている。   The heat exchanger 3 is configured by a fin tube type heat exchanger including a large number of fins 31 and a plurality of heat absorption tubes 32 penetrating the fins 31. A plurality of connection lids 33 are formed on the outer surfaces of the one side plate 23 and the other side plate 23 and 24 in the lateral direction of the combustion housing 2 to define a connection path between two adjacent heat absorption tubes 32 and 32 between the side plates 23 and 24. All the heat absorption tubes 32 are connected in series. In addition, a water inlet 34 is provided in the connection lid 33 that defines a connection path connected to the heat absorption pipe 32 at the upstream end with the one side plate 23 in the lateral direction.

また、燃焼筐２のバーナ１と熱交換器３との間の部分には、燃焼筐２を冷却するために熱交換器３の下流側に接続されるウォータジャケット５が設けられている。このウォータジャケット５は、燃焼筐２の後側の側板２２に設けられた横方向にのびる上下３本の第１水管５１と、燃焼筐２の前側の側板２１に設けられた横方向にのびる上下３本の第３水管５３と、燃焼筐２の横方向一方の側板２３に設けられた、第１水管５１と第３水管５３とを接続する前後方向にのびる上下３本の第２水管５２と、燃焼筐２の横方向他方の側板２４の後方寄りの部分に設けられた、熱交換器３を通過した水を第１水管５１に導く流入側ヘッダ５ｉｎと、燃焼筐２の横方向他方の側板２４の前方寄りの部分に設けられた、第３水管５３からの水が流入する流出側ヘッダ５ｏｕｔとで構成され、流出側ヘッダ５ｏｕｔの上部に、給湯路を接続する出湯口５４が設けられている。これにより、熱交換器３を通過した水（温水）は、流入側ヘッダ５ｉｎから第１水管５１と第２水管５２と第３水管５３とを介して流出側ヘッダ５ｏｕｔに流れ、出湯口５４から給湯路に供給される。   Further, a water jacket 5 connected to the downstream side of the heat exchanger 3 is provided in a portion between the burner 1 of the combustion housing 2 and the heat exchanger 3 to cool the combustion housing 2. The water jacket 5 includes three upper and lower first water pipes 51 provided on the side plate 22 on the rear side of the combustion housing 2 and an upper and lower side extending on the side plate 21 provided on the front side plate 21 of the combustion housing 2. Three third water pipes 53 and three upper and lower second water pipes 52 extending in the front-rear direction connecting the first water pipe 51 and the third water pipe 53, provided on one side plate 23 in the lateral direction of the combustion housing 2, , An inflow header 5 in which the water that has passed through the heat exchanger 3 is provided to the first water pipe 51, provided on the rear side of the other side plate 24 in the lateral direction of the combustion housing 2, and the other lateral side of the combustion housing 2. It is composed of an outflow side header 5out that is provided near the front side of the side plate 24 and into which water from the third water pipe 53 flows, and a hot water outlet 54 that connects the hot water supply path is provided above the outflow side header 5out. ing. Thereby, the water (warm water) that has passed through the heat exchanger 3 flows from the inflow side header 5in to the outflow side header 5out through the first water pipe 51, the second water pipe 52, and the third water pipe 53, and from the hot water outlet 54. It is supplied to the hot water supply channel.

尚、第１と第３の各水管５１，５３は、燃焼筐２の前側と後側の各側板２１，２２の内面に取付けられる。具体的には、前側と後側の各側板２１，２２に、各水管５１，５３の取付け箇所に位置させて、外方に半円状に膨出する膨出部５１ａ，５３ａを形成し、各水管５１，５３を各膨出部５１ａ，５３ａに凹入させた状態で各側板２１，２２の内面に取付けている。また、第２水管５２は、側板２３に形成した横方向内方への窪み部５２ａと、この窪み部５２ａを覆う蓋体５２ｂとで構成されている。   The first and third water pipes 51 and 53 are attached to the inner surfaces of the front and rear side plates 21 and 22 of the combustion housing 2. Specifically, on the side plates 21 and 22 on the front side and the rear side, the bulging portions 51a and 53a bulging outwardly in a semicircular shape are formed at positions where the water pipes 51 and 53 are attached, The water pipes 51 and 53 are attached to the inner surfaces of the side plates 21 and 22 in a state of being recessed in the bulging portions 51a and 53a. The second water pipe 52 includes a laterally inwardly recessed portion 52a formed in the side plate 23 and a lid body 52b that covers the recessed portion 52a.

また、図５も参照して、燃焼筐２の前側の側板２１のバーナ１と熱交換器３との間の部分には、点火電極６１、接地電極６２及びフレームロッド６３から成る電極と、点火電極６１及び接地電極６２を挿通固定した第１碍子６４１とフレームロッド６３を挿通固定した第２碍子６４２とを備える電極部品６が装着されている。点火電極６１及び接地電極６２は、側板２１に形成した横長の透孔２１ａを通して燃焼筐２内に突出し、フレームロッド６３は、側板２１に形成した別の透孔２１ｂを通して燃焼筐２内に突出する。第１と第２の各碍子６４１，６４２は、側板２１の各透孔２１ａ，２１ｂの周囲の部分に重なるフランジ部６４ａを有している。そして、第１と第２の両碍子６４１，６４２のフランジ部６４ａ，６４ａと側板２１との間に横長の共通のパッキン６５を介設した状態で、両碍子６４１，６４２のフランジ部６４ａ，６４ａの外面に重なる横長の共通の押え板６６を設け、この押え板６６を側板２１に締結、即ち、ネジ６７止めすることで電極部品６を側板２１に装着している。 Referring also to FIG. 5, the portion between the burner 1 of the front side plate 21 of the combustion housing 2 and the heat exchanger 3 is provided with an electrode comprising an ignition electrode 61, a ground electrode 62 and a frame rod 63, electrode component 6 and a second insulator 64 2 in which the first insulator 64 1 and the frame rod 63 and inserted and fixed with an electrode 61 and the ground electrode 62 and inserted and fixed is mounted. The ignition electrode 61 and the ground electrode 62 protrude into the combustion housing 2 through a horizontally long through hole 21 a formed in the side plate 21, and the frame rod 63 protrudes into the combustion housing 2 through another through hole 21 b formed in the side plate 21. . Each of the first and second insulators 64 1 and 64 2 has a flange portion 64 a that overlaps a portion around each of the through holes 21 a and 21 b of the side plate 21. Then, both the first and second insulators 64 1, 64 2 of the flange portion 64a, in a state in which a common packing 65 in the horizontally long is interposed between the 64a and the side plate 21, both insulators 64 1, 64 2 of the flange A horizontally long common pressing plate 66 that overlaps the outer surfaces of the portions 64 a and 64 a is provided, and the pressing plate 66 is fastened to the side plate 21, that is, the screw 67 is fastened to attach the electrode component 6 to the side plate 21.

尚、パッキン６５には、点火電極６１及び接地電極６２を挿通する透孔６５ａとフレームロッド６３を挿通する透孔６５ｂとが形成されている。また、押え板６６には、燃焼筐２内を目視するための覗き窓６８が付設されており、側板２１及びパッキン６５に覗き窓６８に対応する透孔２１ｃ，６５ｃが形成されている。   The packing 65 is formed with a through hole 65a through which the ignition electrode 61 and the ground electrode 62 are inserted and a through hole 65b through which the frame rod 63 is inserted. Further, the holding plate 66 is provided with a viewing window 68 for viewing the inside of the combustion housing 2, and through holes 21 c and 65 c corresponding to the viewing window 68 are formed in the side plate 21 and the packing 65.

ところで、パッキン６５を使用するのは、燃焼筐２内の燃焼ガスが透孔２１ａ，２１ｂを通して外部に漏れ出るのを防止するためである。ここで、押え板６６の締結でパッキン６５を圧縮したときに、パッキン６５が周囲に広がると、パッキン６５内部の圧縮応力を十分に高くすることができず、シール性が悪くなることがある。   By the way, the packing 65 is used in order to prevent the combustion gas in the combustion casing 2 from leaking outside through the through holes 21a and 21b. Here, when the packing 65 is compressed by fastening the holding plate 66, if the packing 65 spreads around, the compressive stress inside the packing 65 cannot be sufficiently increased, and the sealing performance may be deteriorated.

そこで、本実施形態では、図６に明示する如く、燃焼筐２の前側の側板２１に形成した、電極部品６の装着箇所の上側と下側に位置する上下の第３水管５３，５３が凹入される上下の膨出部５３ａ，５３ａに、パッキン６５の上下の側縁部が当接するようにしている。これによれば、押え板６６の締結でパッキン６５を圧縮したときに、パッキン６５が上下に広がることを上下の膨出部５３ａ，５３ａにより抑制できる。そのため、パッキン６５内部の圧縮応力を十分に高くすることができ、良好なシール性が得られる。   Therefore, in the present embodiment, as clearly shown in FIG. 6, the upper and lower third water pipes 53, 53 formed on the side plate 21 on the front side of the combustion housing 2 and located on the upper side and the lower side of the mounting position of the electrode component 6 are recessed. The upper and lower side edges of the packing 65 are in contact with the upper and lower bulges 53a and 53a to be inserted. According to this, when the packing 65 is compressed by fastening the pressing plate 66, the upper and lower bulging portions 53a and 53a can suppress the packing 65 from spreading up and down. Therefore, the compressive stress inside the packing 65 can be made sufficiently high, and good sealing performance can be obtained.

次に、図７に示す第２実施形態について説明する。第２実施形態では、燃焼筐２の前側の側板２１に、電極部品６の装着箇所の上側と下側に位置する上下の第３水管５３，５３が共に凹入される外方に膨出した膨出部５３ｂを形成している。この膨出部５３ｂの上半部には、外方に最も膨出した上部から下方に向けて内方に傾斜した傾斜部５３ｃが形成され、膨出部５３ｂの下半部には、外方に最も膨出した下部から上方に向けて内方に傾斜した傾斜部５３ｄが形成されている。更に、膨出部５３ｂには、上半部の傾斜部５３ｃと下半部の傾斜部５３ｃとの間に位置させて、電極を通す透孔、即ち、図７に示されたフレームロッド６３を通す透孔２１ｂと、図７には示されていない点火電極６１及び接地電極６２を通す透孔２１ａとが形成されている。   Next, a second embodiment shown in FIG. 7 will be described. In the second embodiment, the upper and lower third water pipes 53, 53 located on the upper side and the lower side of the mounting part of the electrode part 6 are bulged outwardly on the side plate 21 on the front side of the combustion housing 2. A bulging portion 53b is formed. In the upper half of the bulging portion 53b, an inclined portion 53c that is inclined inward from the uppermost bulging portion outward is formed. In the lower half of the bulging portion 53b, the outer portion An inclined portion 53d that is inclined inward from the lowermost bulging portion to the upper side is formed. Further, the bulging portion 53b is provided with a through-hole for passing an electrode, that is, the frame rod 63 shown in FIG. 7, located between the upper half inclined portion 53c and the lower half inclined portion 53c. A through hole 21b is formed, and a through hole 21a through which the ignition electrode 61 and the ground electrode 62 are not shown in FIG. 7 is formed.

そして、第２実施形態では、パッキン６５の上部と下部が夫々膨出部５３ｂの上半部と下半部の傾斜部５３ｃ，５３ｄに接するようにしている。これによれば、押え板６６の締結でパッキン６５を圧縮したときに、傾斜部５３ｃ，５３ｄからの圧縮反力の上下方向成分でパッキン６５の上部には下向き、パッキン６５の下部には上向きの力が作用し、パッキン６５が上下に広がることを抑制できる。そのため、パッキン６５内部の圧縮応力を十分に高くすることができ、良好なシール性が得られる。   In the second embodiment, the upper and lower portions of the packing 65 are in contact with the upper and lower half inclined portions 53c and 53d of the bulging portion 53b. According to this, when the packing 65 is compressed by fastening the presser plate 66, the vertical component of the compression reaction force from the inclined portions 53c and 53d is directed downward at the upper part of the packing 65 and upward at the lower part of the packing 65. It is possible to suppress the force 65 from acting and the packing 65 from spreading up and down. Therefore, the compressive stress inside the packing 65 can be made sufficiently high, and good sealing performance can be obtained.

以上、本発明の実施形態について図面を参照して説明したが、本発明はこれに限定されない。例えば、上記第１実施形態では、燃焼筐２の前側の側板２１の内面に第３水管５３を取付けているが、この側板２１の外面に第３水管５３を取付けることも可能である。この場合は、電極部品６の装着箇所の上下の第３水管５３，５３にパッキン６５の上下の側縁部を当接させて、パッキン６５が上下に広がることを抑制できるようにすればよい。また、電極部品６を装着する側板は、後側の側板２２や横方向一方や他方の側板２３，２４であってもよく、更に、ウォータジャケット５は、熱交換器３の上流側に接続されていてもよい。   As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the first embodiment, the third water pipe 53 is attached to the inner surface of the side plate 21 on the front side of the combustion housing 2, but it is also possible to attach the third water pipe 53 to the outer surface of the side plate 21. In this case, the upper and lower side edge portions of the packing 65 may be brought into contact with the upper and lower third water pipes 53 and 53 at the mounting position of the electrode component 6 so that the packing 65 can be prevented from spreading up and down. Further, the side plate on which the electrode component 6 is mounted may be the rear side plate 22 or one of the side plates 23 and 24 in the lateral direction, and the water jacket 5 is connected to the upstream side of the heat exchanger 3. It may be.

１…バーナ、１ａ…燃焼面、２…燃焼筐、２１…前側の側板（一側の側板）、２１ａ，２１ｂ…透孔、３…熱交換器、５…ウォータジャケット、５３…第３水管（上下の水管）、５３ａ…膨出部、５３ｂ…上下の水管が共に凹入される膨出部、５３ｃ…上半部の傾斜部、５３ｄ…下半部の傾斜部、６…電極部品、６１…点火電極(電極)、６２…接地電極(電極)、６３…フレームロッド(電極)、６４１，６４２…碍子、６４ａ…フランジ部、６５…パッキン、６６…押え板。

DESCRIPTION OF SYMBOLS 1 ... Burner, 1a ... Combustion surface, 2 ... Combustion housing, 21 ... Front side plate (one side plate), 21a, 21b ... Through-hole, 3 ... Heat exchanger, 5 ... Water jacket, 53 ... Third water pipe ( Upper and lower water pipes), 53a ... bulging part, 53b ... bulging part into which the upper and lower water pipes are recessed, 53c ... upper half inclined part, 53d ... lower half inclined part, 6 ... electrode parts, 61 ... ignition electrode (electrode), 62 ... ground electrode (electrode), 63 ... frame rod (electrode), 64 1 , 64 2 ... insulator, 64a ... flange part, 65 ... packing, 66 ... presser plate.

Claims (2)

バーナと、バーナの燃焼面から噴出する混合気の燃焼空間を囲う燃焼筐と、燃焼筐内に配置した水を加熱する熱交換器とを備える熱源機であって、燃焼筐のバーナと熱交換器との間の部分に、燃焼筐を冷却するために熱交換器に接続されるウォータジャケットが設けられると共に、燃焼筐の一側の側板のバーナと熱交換器との間の部分に、当該側板に形成した透孔を通して燃焼筐内に突出する電極と、電極を挿通固定した碍子とを備える電極部品が装着され、碍子は、一側の側板の透孔の周囲の部分の外面に重なるフランジ部を有し、このフランジ部と一側の側板との間にパッキンを介設した状態でフランジ部の外面に重なる押え板を一側の側板に締結することにより電極部品が一側の側板に装着されるものにおいて、
一側の側板に、電極部品の装着箇所の上側と下側に位置させて、ウォータジャケットの一部を構成する上下の水管が取付けられ、上下の水管が一側の側板の内面に取付けられる場合は、一側の側板に形成した上下の水管が夫々凹入される外方に膨出した上下の膨出部に、上下の水管が一側の側板の外面に取付けられる場合は、上下の水管に、パッキンの上下の側縁部が当接することを特徴とする熱源機。 A heat source device comprising a burner, a combustion enclosure that encloses a combustion space of an air-fuel mixture ejected from the combustion surface of the burner, and a heat exchanger that heats water disposed in the combustion enclosure, and heat exchange with the burner of the combustion enclosure A water jacket connected to the heat exchanger for cooling the combustion housing is provided in a portion between the combustion chamber and a portion between the burner of the side plate on one side of the combustion housing and the heat exchanger. An electrode component including an electrode protruding into the combustion housing through a through hole formed in the side plate and an insulator through which the electrode is inserted and fixed is mounted, and the insulator overlaps with an outer surface of a portion around the through hole of the side plate on one side The electrode part is attached to the side plate on one side by fastening the presser plate that overlaps the outer surface of the flange portion with the packing interposed between the flange portion and the side plate on the one side. In what is installed,
When the upper and lower water pipes that constitute a part of the water jacket are mounted on the side plate on one side above and below the mounting location of the electrode parts, and the upper and lower water pipes are mounted on the inner surface of the one side plate If the upper and lower water pipes are attached to the outer surface of the one side plate, the upper and lower water pipes are attached to the upper and lower bulges that are bulged outwardly. In addition, a heat source machine in which upper and lower side edges of the packing are in contact with each other. バーナと、バーナの燃焼面から噴出する混合気の燃焼空間を囲う燃焼筐と、燃焼筐内に配置した水を加熱する熱交換器とを備える熱源機であって、燃焼筐のバーナと熱交換器との間の部分に、燃焼筐を冷却するために熱交換器に接続されるウォータジャケットが設けられると共に、燃焼筐の一側の側板のバーナと熱交換器との間の部分に、当該側板に形成した透孔を通して燃焼筐内に突出する電極と、電極を挿通固定した碍子とを備える電極部品が装着され、碍子は、一側の側板の透孔の周囲の部分の外面に重なるフランジ部を有し、このフランジ部と一側の側板との間にパッキンを介設した状態でフランジ部の外面に重なる押え板を一側の側板に締結することにより電極部品が一側の側板に装着されるものにおいて、
一側の側板の内面に、電極部品の装着箇所の上側と下側に位置させて、ウォータジャケットの一部を構成する上下の水管が取付けられ、一側の側板に、上下の水管が共に凹入される外方に膨出した膨出部が形成され、この膨出部の上半部に、外方に最も膨出した上部から下方に向けて内方に傾斜した傾斜部が形成されると共に、膨出部の下半部に、外方に最も膨出した下部から上方に向けて内方に傾斜した傾斜部が形成され、膨出部に、上半部の傾斜部と下半部の傾斜部との間に位置させて、電極を通す透孔が形成され、パッキンの上部と下部が夫々上半部と下半部の傾斜部に接することを特徴とする熱源機。
A heat source device comprising a burner, a combustion enclosure that encloses a combustion space of an air-fuel mixture ejected from the combustion surface of the burner, and a heat exchanger that heats water disposed in the combustion enclosure, and heat exchange with the burner of the combustion enclosure A water jacket connected to the heat exchanger for cooling the combustion housing is provided in a portion between the combustion chamber and a portion between the burner of the side plate on one side of the combustion housing and the heat exchanger. An electrode component including an electrode protruding into the combustion housing through a through hole formed in the side plate and an insulator through which the electrode is inserted and fixed is mounted, and the insulator overlaps with an outer surface of a portion around the through hole of the side plate on one side The electrode part is attached to the side plate on one side by fastening the presser plate that overlaps the outer surface of the flange portion with the packing interposed between the flange portion and the side plate on the one side. In what is installed,
Upper and lower water pipes constituting a part of the water jacket are mounted on the inner surface of the side plate on the upper side and the lower side of the mounting part of the electrode parts, and the upper and lower water pipes are both recessed on the side plate on the one side. A bulging portion bulging outward is formed, and an inclined portion inclined inward from the uppermost bulging portion outward is formed in the upper half of the bulging portion. In addition, the lower half of the bulging part is formed with an inclined part inclined inward from the lower part bulging most outward to the upper part, and the bulging part has an inclined part and a lower half part of the upper half part. A heat source device, wherein a through-hole through which an electrode passes is formed, and the upper and lower portions of the packing are in contact with the inclined portions of the upper half and the lower half, respectively.
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EP17173074.0A EP3258172B1 (en) 2016-06-02 2017-05-26 Heat source apparatus
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