JP2008190338A - Forced air supply and exhaust type combustion device - Google Patents

Forced air supply and exhaust type combustion device Download PDF

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Publication number
JP2008190338A
JP2008190338A JP2007022707A JP2007022707A JP2008190338A JP 2008190338 A JP2008190338 A JP 2008190338A JP 2007022707 A JP2007022707 A JP 2007022707A JP 2007022707 A JP2007022707 A JP 2007022707A JP 2008190338 A JP2008190338 A JP 2008190338A
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Prior art keywords
combustion
fan
shaft
motor
supply
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Minoru Nakano
稔 中野
Kiyoto Kuribayashi
清人 栗林
Houho Fujikawa
朋保 藤川
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Corona Corp
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Corona Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent failure of a combustion motor 14 by salt damage. <P>SOLUTION: A combustion apparatus body includes a combustion fan 6 for sucking combustion air from the outside through a supply and discharge cylinder passed through a wall, a combustion burner for burning with the combustion air supplied from the combustion fan, and a heat exchanger for conducting heat exchange between a combustion gas by combustion of the combustion burner and indoor air supplied from a convection fan. The combustion apparatus body exhausts combustion gas after heat exchange to the outside through the supply and discharge cylinder. The combustion fan 6 is provided with a fan case 15 with a shaft hole formed substantially in its center, the combustion motor 14 fixed to the fan case 15 after a rotating shaft 13 is inserted into the shaft hole, a blade 24 fixed at the end of the rotating shaft 13, and a fan cover 27 having a space for storing the blade 24 between the fan case 15 and the fan cover. A shaft packing 21 and a washer 22 are provided to the periphery of the rotating shaft 13 and between the combustion motor 14 and the fan case 15, and grease 23 is injected inside of the shaft packing 21 and washer 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、屋外の空気を燃焼空気として燃焼し、この燃焼で発生した燃焼ガスで室内空気を加熱して暖房すると共に、温度低下した燃焼ガスを屋外に排気する強制給排気式の燃焼装置に関するものである。   The present invention relates to a forced supply / exhaust combustion apparatus that burns outdoor air as combustion air, heats and heats indoor air with the combustion gas generated by the combustion, and exhausts the combustion gas whose temperature has decreased to the outdoors. Is.

従来よりこの種のものでは、屋外の空気を給排気筒を介して燃焼ファンで吸引し、燃焼バーナに燃焼空気として供給し、燃油を燃料に燃焼させ、この燃焼で発生した燃焼ガスと対流ファンによって送風される室内空気とを熱交換器で熱交換し、温度降下した燃焼ガスは給排気筒を介して屋外に排気し、この熱交換で温度上昇した室内空気で室内を温風暖房するもので、室内の空気を汚すことなく、快適な暖房が行えるものであった。(例えば、特許文献1参照。)
特許第3364203号公報
Conventionally, in this type, outdoor air is sucked by a combustion fan through an air supply / exhaust pipe, supplied as combustion air to a combustion burner, and fuel oil is burned into fuel, and the combustion gas generated by this combustion and a convection fan Heat exchanged with indoor air blown by a heat exchanger, the combustion gas whose temperature has dropped is exhausted to the outside through a supply / exhaust tube, and the indoor air heated by this heat exchange is heated with warm air Thus, comfortable heating can be performed without polluting the indoor air. (For example, refer to Patent Document 1.)
Japanese Patent No. 3364203

ところでこの従来のものでは、屋外より直接給排気筒にて燃焼空気を吸引するので、海沿いの地域で使用された場合には給気経路に備えた燃焼ファンのファンケースから燃焼モータ内部の軸受け部に塩分を帯びた外気が侵入し、この軸受け部が錆びることで燃焼モータの回転に障害が発生することで故障する事があった。
そこで密閉タイプのボールベアリングを使用する等の密閉度の高い高価なモータを使用した場合には製造原価が上昇する問題が有った。
By the way, in this conventional type, the combustion air is sucked directly from the outside through the air supply / exhaust tube, so when used in an area along the sea, the bearing inside the combustion motor is removed from the fan case of the combustion fan provided in the air supply path. There was a case where the outside air with salty infiltrated into the part and the bearing part rusted, resulting in a failure in the rotation of the combustion motor.
Therefore, when an expensive motor with a high degree of sealing, such as using a sealed ball bearing, is used, there is a problem that the manufacturing cost increases.

この発明はこの点に着目し上記欠点を解決する為、特にその構成を、壁を貫通した給排気筒を介して燃焼空気を屋外から吸引する燃焼ファンと、該燃焼ファンから供給される燃焼空気で燃焼する燃焼バーナと、この燃焼バーナの燃焼による燃焼ガスと対流ファンから供給される室内空気とを熱交換する熱交換器とを備えた燃焼器具本体で、熱交換後の温風を室内に放出して暖房をすると共に、熱交換後の燃焼ガスを前記給排気筒を介して屋外に排気するものに於いて、前記燃焼ファンは略中央に軸穴を備えたファンケースと、前記軸穴に回転軸を挿入した後、前記ファンケースに固定する燃焼モータと、前記回転軸の先端に固定される羽根と、ファンケースとの間に前記羽根を収納する空間を備えたファンカバーを設け、前記回転軸の周囲で燃焼モータとファンケースの間に軸パッキンとワッシャーを設け、前記軸パッキンとワッシャーの内側にグリスを注入したものである。   The present invention pays attention to this point and solves the above-described drawbacks. In particular, the present invention has a configuration in which a combustion fan that sucks combustion air from the outside through a supply / exhaust tube that penetrates the wall, and combustion air that is supplied from the combustion fan. A combustion burner body comprising a combustion burner that burns in the chamber and a heat exchanger that exchanges heat between the combustion gas generated by the combustion of the combustion burner and the indoor air supplied from the convection fan. Discharging and heating, and exhausting the combustion gas after heat exchange to the outside through the air supply / exhaust cylinder, the combustion fan has a fan case having a shaft hole substantially in the center, and the shaft hole A combustion motor that is fixed to the fan case, a blade that is fixed to the tip of the rotary shaft, and a fan cover that includes a space for storing the blade between the fan case, Around the axis of rotation The shaft packing and the washer provided between the baked motor and fan case, is obtained by injecting the grease inside the shaft packing and washers.

この発明によれば、安価な軸パッキンとワッシャーとグリスを追加するだけで簡単に燃焼モータの気密性を向上させ、塩害による燃焼モータの故障を防止することができるものである。   According to the present invention, it is possible to easily improve the airtightness of the combustion motor simply by adding an inexpensive shaft packing, washer and grease, and to prevent the combustion motor from being damaged due to salt damage.

次にこの発明の一実施形態について図面に基づいて説明する。
1は燃焼筒2下部に備えられた燃焼バーナで、壁3を貫通した二重管式の給排気筒4と給気管5を介して連通している。この給気管5は燃焼ファン6に接続され、燃焼ファン6と前記燃焼バーナ1が接続され、燃焼ファン6の作動で、屋外の空気を燃焼空気として燃焼バーナ1へ供給し、電磁ポンプ7から供給される燃油を燃料に燃焼するものである。
Next, an embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a combustion burner provided at the lower portion of the combustion cylinder 2, which communicates with a double pipe type supply / exhaust cylinder 4 penetrating the wall 3 via an intake pipe 5. The supply pipe 5 is connected to a combustion fan 6, and the combustion fan 6 and the combustion burner 1 are connected. By the operation of the combustion fan 6, outdoor air is supplied to the combustion burner 1 as combustion air and supplied from an electromagnetic pump 7. The burned fuel oil is burned into fuel.

8は燃焼筒2に連通した熱交換器で、前記燃焼バーナ1の燃焼で発生した燃焼ガスと対流ファン9により送風される室内空気とを熱交換するものであり、この熱交換で高温となった室内空気は燃焼器具本体10の正面に形成された吹き出し口11から、クリーンな温風として吹き出して室内を温風暖房するものであり、更に熱交換で温度降下した燃焼ガスは、排気管12を通り給排気筒4から屋外に排気されるものである。   A heat exchanger 8 communicates with the combustion cylinder 2 for exchanging heat between the combustion gas generated by the combustion of the combustion burner 1 and the indoor air blown by the convection fan 9, and the heat exchange causes a high temperature. The indoor air is blown out as clean warm air from a blow-out port 11 formed on the front surface of the combustion appliance main body 10 to heat the room with hot air, and the combustion gas whose temperature has dropped due to heat exchange is exhausted from the exhaust pipe 12. The air is exhausted from the supply / exhaust tube 4 to the outside.

図2〜3は前記燃焼ファン6のモータ回転軸13よりも上側を断面にした概略断面図で、14は安価な隈取線輪型単相誘導電動機(通称、隈取りモータ)の燃焼モータで、制御基板(図示せず)に電源を接続し、前記制御基板からの位相制御によって必要に応じて複数の所定回転数で回転するものである。
15は略中央に前記モータ回転軸13が挿入される軸穴16と、燃焼モータ14側へ筒状に突出し、燃焼バーナ1への送風パイプ17が接続される吹出口18を備えたファンケースで、モータ回転軸13の周囲に備えた取付穴19にネジ20にて燃焼モータ14を取付け固定するものであり、前記取付穴19とネジ20は3対設けられファンケース15に燃焼モータ14をしっかりと取り付けるものである。また、前記燃焼モータ14とファンケース15の間のモータ回転軸13周囲には、円筒状の軸パッキン21とワッシャー22を設け、前記軸パッキン21とワッシャー22の内側にグリス23を注入している。これにより、簡単に給気経路からモータ回転軸13の隙間を通って燃焼モータ14への給気漏れを防止することで、塩害による燃焼モータの故障を防止することができるものである。
2 and 3 are schematic cross-sectional views of the combustion fan 6 with respect to the motor rotating shaft 13, and 14 is a combustion motor of an inexpensive single-phase induction motor (commonly known as a scraping motor). A power source is connected to a substrate (not shown), and is rotated at a plurality of predetermined rotational speeds as required by phase control from the control substrate.
Reference numeral 15 denotes a fan case provided with a shaft hole 16 into which the motor rotating shaft 13 is inserted and a blowout port 18 projecting in a cylindrical shape toward the combustion motor 14 and connected to a blower pipe 17 to the combustion burner 1. The combustion motor 14 is attached and fixed to a mounting hole 19 provided around the motor rotating shaft 13 with a screw 20, and three pairs of the mounting hole 19 and the screw 20 are provided, and the combustion motor 14 is firmly attached to the fan case 15. It is to be attached. A cylindrical shaft packing 21 and a washer 22 are provided around the motor rotation shaft 13 between the combustion motor 14 and the fan case 15, and grease 23 is injected inside the shaft packing 21 and the washer 22. . Thereby, the failure of the combustion motor due to salt damage can be prevented by simply preventing the leakage of the air supply to the combustion motor 14 from the air supply path through the gap of the motor rotating shaft 13.

前記軸パッキン21はクロロプレンゴムで形成され、ワッシャー22はフッ素樹脂製のパッキンで形成されており、また、前記グリス21は酸化安定性、熱安定性、低温流動性に優れた合成油と、耐水性に優れたリチウム石けんで構成され、−40℃〜+140℃の広い温度範囲で使用でき、塩水に対する性能が特に優れたものを使用するものである。   The shaft packing 21 is made of chloroprene rubber, the washer 22 is made of a fluororesin packing, and the grease 21 is made of synthetic oil excellent in oxidation stability, thermal stability and low-temperature fluidity, It is composed of lithium soap having excellent properties, can be used in a wide temperature range of −40 ° C. to + 140 ° C., and has particularly excellent performance against salt water.

24は前記回転軸13の先端に固定されるアルミニウム製の羽根で、中央に設けたボス部25の取付穴26に回転軸13の先端を挿入後、回転軸13と垂直方向にネジ止めされるものである。
27はファンカバーで、前記ファンケース15との間に備えた空間28内に前記羽根24を収納し、中央には前記給気管5を接続するために、円筒状に形成された吸気口29が設けられ、外周に形成されたツバ状部30にはファンケース15にネジ31にてネジ止めするためのネジ穴32を備え、ファンケース15とファンカバー27の間に空気の漏れを防ぐためにゴム製のファンケースパッキン33を備えるものである。
Reference numeral 24 denotes an aluminum blade fixed to the tip of the rotary shaft 13, which is screwed in a direction perpendicular to the rotary shaft 13 after the tip of the rotary shaft 13 is inserted into the mounting hole 26 of the boss portion 25 provided in the center. Is.
Reference numeral 27 denotes a fan cover. The blade 24 is housed in a space 28 provided between the fan case 15 and an intake port 29 formed in a cylindrical shape is connected to the air supply pipe 5 in the center. The flange-shaped portion 30 provided on the outer periphery is provided with a screw hole 32 for screwing the fan case 15 with a screw 31, and rubber for preventing air leakage between the fan case 15 and the fan cover 27. A fan case packing 33 made of metal is provided.

また、前記ワッシャー22の内径をモータ回転軸13の径と略同径とし、前記軸パッキン21の内径を回転軸13の径よりも稍大きな径とすることにより、グリス23がワッシャー22および軸パッキン21の隙間に充分塗布され、燃焼モータ14の密閉性が更に高まるものであり、とても安価に塩害による燃焼モータ14の故障を防止することができるものである。   Further, by making the inner diameter of the washer 22 substantially the same as the diameter of the motor rotating shaft 13 and the inner diameter of the shaft packing 21 larger than the diameter of the rotating shaft 13, the grease 23 has the washer 22 and the shaft packing. It is sufficiently applied to the gap 21 and the sealing property of the combustion motor 14 is further enhanced, and the failure of the combustion motor 14 due to salt damage can be prevented at a very low cost.

次に燃焼ファン6の組み立て手順について説明すれば、燃焼モータ14の回転軸13にワッシャー22、軸パッキン21の順に挿入後、ワッシャー22および軸パッキン21と回転軸13の隙間に約5グラムのグリス23を塗布し、ファンケース15の軸穴16に回転軸13を挿入し、ファンケース15側から3カ所をネジ20にて燃焼モータ14へ固定すれば、ファンケース15が軸パッキン21とワッシャー22と適宜に押圧すると共に、グリス23がワッシャー22とモータ回転軸13の間の隙間を密閉するものである。   Next, a procedure for assembling the combustion fan 6 will be described. After inserting the washer 22 and the shaft packing 21 into the rotating shaft 13 of the combustion motor 14 in this order, about 5 grams of grease is inserted into the gap between the washer 22 and the shaft packing 21 and the rotating shaft 13. 23, the rotating shaft 13 is inserted into the shaft hole 16 of the fan case 15, and three places from the fan case 15 side are fixed to the combustion motor 14 with screws 20, the fan case 15 is fixed to the shaft packing 21 and the washer 22. And the grease 23 seals the gap between the washer 22 and the motor rotating shaft 13.

次に、モータ回転軸13の先端に羽根24をネジ止めした後、ファンカバー25のツバ状部30をファンケースパッキン33を介してネジ31にてネジ止めすれば燃焼ファン6の組み立てが完了し、軸パッキン21とワッシャー22の内側にグリス23を注入することにより、簡単に給気経路からモータ回転軸13の隙間を通って燃焼モータ14への給気漏れを防止することで、塩害による燃焼モータ14の故障を防止することができるものである。   Next, after the blade 24 is screwed to the tip of the motor rotating shaft 13, the flange 30 of the fan cover 25 is screwed with the screw 31 via the fan case packing 33 to complete the assembly of the combustion fan 6. By injecting grease 23 into the shaft packing 21 and the washer 22, the leakage of the supply air to the combustion motor 14 from the supply passage through the clearance of the motor rotating shaft 13 can be easily prevented. A failure of the motor 14 can be prevented.

次にこの発明一実施形態の作動について説明すれば、今運転が指示されれば、燃焼バーナ1には電磁ポンプ7から燃油が供給され、又燃焼ファン6の駆動により給排気筒4を介して屋外の空気が燃焼空気として供給されて、適宜の点火手段(図示せず)で点火すれば燃焼バーナ1は燃焼を開始する。   Next, the operation of the embodiment of the present invention will be described. When the current operation is instructed, the combustion burner 1 is supplied with fuel oil from the electromagnetic pump 7 and driven by the combustion fan 6 via the supply / exhaust cylinder 4. When outdoor air is supplied as combustion air and ignited by appropriate ignition means (not shown), the combustion burner 1 starts to burn.

更にこの燃焼バーナ1の燃焼で発生した燃焼ガスは、燃焼筒2を通り熱交換器8で、対流ファン9により送風される室内空気と熱交換され、温度上昇した室内空気は吹き出し口11から温風として放出されて室内の暖房を行うものであり、又この熱交換で温度降下された燃焼ガスは、排気管12及び給排気筒4を通り屋外に排気されるものであり、順次これを繰り返して室内が暖房されるものである。   Further, the combustion gas generated by the combustion of the combustion burner 1 passes through the combustion cylinder 2 and is heat-exchanged with the indoor air blown by the convection fan 9 in the heat exchanger 8. The combustion gas that has been released as wind to heat the room and that has fallen in temperature due to this heat exchange is exhausted to the outside through the exhaust pipe 12 and the supply / exhaust cylinder 4, and this is repeated sequentially. The room is heated.

この発明の一実施形態を示す燃焼装置の概略説明図。BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of the combustion apparatus which shows one Embodiment of this invention. 同要部の概略断面図。The schematic sectional drawing of the principal part. 同要部の展開断面図。The expanded sectional view of the principal part.

符号の説明Explanation of symbols

1 燃焼バーナ
3 壁
4 給排気筒
5 給気管
6 燃焼ファン
8 熱交換器
10 燃焼器具本体
12 排気管
13 モータ回転軸
14 燃焼モータ
15 ファンケース
21 軸パッキン
22 ワッシャー
23 グリス
24 羽根
DESCRIPTION OF SYMBOLS 1 Combustion burner 3 Wall 4 Supply / exhaust pipe 5 Supply pipe 6 Combustion fan 8 Heat exchanger 10 Combustion apparatus main body 12 Exhaust pipe 13 Motor rotating shaft 14 Combustion motor 15 Fan case 21 Shaft packing 22 Washer 23 Grease 24 Blade

Claims (1)

壁を貫通した給排気筒を介して燃焼空気を屋外から吸引する燃焼ファンと、該燃焼ファンから供給される燃焼空気で燃焼する燃焼バーナと、この燃焼バーナの燃焼による燃焼ガスと対流ファンから供給される室内空気とを熱交換する熱交換器とを備えた燃焼器具本体で、熱交換後の温風を室内に放出して暖房をすると共に、熱交換後の燃焼ガスを前記給排気筒を介して屋外に排気するものに於いて、前記燃焼ファンは略中央に軸穴を備えたファンケースと、前記軸穴に回転軸を挿入した後、前記ファンケースに固定する燃焼モータと、前記回転軸の先端に固定される羽根と、ファンケースとの間に前記羽根を収納する空間を備えたファンカバーを設け、前記回転軸の周囲で燃焼モータとファンケースの間に軸パッキンとワッシャーを設け、前記軸パッキンとワッシャーの内側にグリスを注入した事を特徴とする強制給排気式の燃焼装置。   A combustion fan that sucks combustion air from the outside through a supply / exhaust tube that penetrates the wall, a combustion burner that burns with the combustion air supplied from the combustion fan, and a combustion gas that is generated by the combustion of the combustion burner and a supply from a convection fan A combustion appliance body having a heat exchanger for exchanging heat with the indoor air to be heated, releasing the warm air after heat exchange into the room for heating, and supplying the combustion gas after heat exchange to the supply and exhaust cylinder The combustion fan has a fan case having a shaft hole at substantially the center, a combustion motor that is fixed to the fan case after inserting a rotating shaft into the shaft hole, and the rotation A fan cover having a space for housing the blade is provided between the blade fixed to the tip of the shaft and the fan case, and a shaft packing and washer are provided between the combustion motor and the fan case around the rotating shaft. ,in front Forced air supply and exhaust type combustion apparatus, characterized in that the injection of grease into the inside of the shaft packing and washers.
JP2007022707A 2007-02-01 2007-02-01 Forced air supply and exhaust type combustion device Pending JP2008190338A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223892A1 (en) 2013-11-26 2015-05-28 Denso Corporation Fuel injection control system
CN109695586A (en) * 2019-02-20 2019-04-30 苏州众志新环冷却设备有限公司 Novel seal fan for offshore wind farm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223892A1 (en) 2013-11-26 2015-05-28 Denso Corporation Fuel injection control system
CN109695586A (en) * 2019-02-20 2019-04-30 苏州众志新环冷却设备有限公司 Novel seal fan for offshore wind farm

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