JPH0781697B2 - Combustion type hot air heater - Google Patents

Combustion type hot air heater

Info

Publication number
JPH0781697B2
JPH0781697B2 JP59192328A JP19232884A JPH0781697B2 JP H0781697 B2 JPH0781697 B2 JP H0781697B2 JP 59192328 A JP59192328 A JP 59192328A JP 19232884 A JP19232884 A JP 19232884A JP H0781697 B2 JPH0781697 B2 JP H0781697B2
Authority
JP
Japan
Prior art keywords
air
plate
combustion cylinder
burner
blower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59192328A
Other languages
Japanese (ja)
Other versions
JPS6170317A (en
Inventor
伴久 羽田
志津雄 三田
英雄 小松原
Original Assignee
三洋電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP59192328A priority Critical patent/JPH0781697B2/en
Publication of JPS6170317A publication Critical patent/JPS6170317A/en
Publication of JPH0781697B2 publication Critical patent/JPH0781697B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, 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
    • F23M5/00Casings; Linings; Walls
    • F23M5/08Cooling thereof; Tube walls
    • F23M5/085Cooling thereof; Tube walls using air or other gas as the cooling medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • F23C7/02Disposition of air supply not passing through burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H3/00Air heaters having heat generating means
    • F24H3/02Air heaters having heat generating means with forced circulation
    • F24H3/04Air heaters having heat generating means with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0488Air heaters having heat generating means with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using fluid combustibles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Description

【発明の詳細な説明】 (イ) 産業上の利用分野 本発明は、灯油等の石油燃料を気化して燃焼させるバー
ナを熱源とせる室内開放型の燃焼式温風暖房機に係り、
特に温風用送風機の送風の一部を燃焼筒内に二次空気と
して取入れるようにした燃焼式温風暖房機に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an indoor open type combustion hot air heater using a burner for vaporizing and burning petroleum fuel such as kerosene as a heat source,
In particular, the present invention relates to a combustion type hot air heater in which a part of the air blown by the hot air blower is taken into the combustion cylinder as secondary air.
(ロ) 従来の技術 此種燃焼式温風暖房機に於て、温風用送風機の送風の一
部を燃焼筒内に二次空気として取入れ、二次燃焼を促進
して室内に放出する一酸化炭素量を減少せしめ、清潔で
安全な温風暖房を施こせるようにしたものが実開昭56-5
957号公報及び実開昭56-146852号公報等にて提案させて
いる。しなし乍ら、それら従来構成のものは、バーナの
炎口部を臨ませた燃焼筒の下部に温風用送風機の送風を
導入するための多数の通気孔を穿設している為、バーナ
の燃焼炎にて高温度に加熱される燃焼筒の強度低下を招
く欠点があった。又、通気孔によって温風用送風機の送
風を直接燃焼筒内に導入するように構成してある関係
上、温風用送風機に近い位置の通気孔から多量に空気が
入り込み、燃焼炎の周囲全体に亙って均一に二次空気を
供給することが困難であった。
(B) Conventional technology In this type of combustion type hot air heater, a part of the air blown by the hot air blower is taken in the combustion cylinder as secondary air to promote the secondary combustion and discharge it into the room. The one that reduced the amount of carbon oxide and provided clean and safe warm air heating
Proposed in 957 and Japanese Utility Model Publication No. 56-146852. However, in the conventional constructions, the burner has a large number of vent holes for introducing the blast of the warm air blower in the lower part of the combustion cylinder facing the flame opening of the burner. However, there was a defect that the strength of the combustion cylinder heated to a high temperature by the combustion flame of No. 1 decreased. Also, because the air blower of the hot air blower is introduced directly into the combustion cylinder by the air vent, a large amount of air enters from the air vent near the hot air blower, and the entire circumference of the combustion flame is surrounded. However, it was difficult to supply the secondary air uniformly.
(ハ) 発明が解決しようとする問題点 上述したように、従来の此種燃焼式温風暖房機では、温
風用送風機の送風の一部を二次空気として燃焼筒内に導
入する場合に、燃焼筒の強度低下を招いたり或いは燃焼
炎の周囲に均一に二次空気の供給が行えないという問題
があった。
(C) Problems to be Solved by the Invention As described above, in the conventional combustion type hot air heater of this type, when a part of the air blown by the hot air blower is introduced as secondary air into the combustion cylinder. However, there is a problem that the strength of the combustion cylinder is reduced or that the secondary air cannot be uniformly supplied around the combustion flame.
本発明は、上述の実情に鑑みてなされたものであり、燃
焼筒の耐久性を向上させつつ、温風用送風機の送風の一
部を二次空気としてバーナに供給できるようにするとと
もに、バーナの熱で他の部品が加熱されるのを防止でき
るようにすることを目的としている。
The present invention has been made in view of the above-mentioned circumstances, and while improving the durability of the combustion cylinder, it is possible to supply a part of the blast of the warm air blower to the burner as secondary air, and the burner. The purpose is to prevent the other components from being heated by the heat of.
(ニ) 問題点を解決するための手段 本発明では、温風吐出口を有する本体ケースと、この本
体ケース内に設けられた送風室と、この送風室の底壁板
上に立てて設けられた燃焼筒と、この燃焼筒に向けて送
風する温風用送風機と、燃焼筒内の下部に炎口部を臨ま
せたバーナと、このバーナの外周を囲む有底筒状のバー
ナケースとを備え、前記送風室の底壁板の下に下板を装
着して、この下板と底壁板とバーナケースとで前記底壁
板の下に環状の通気室を形成し、この通気室には、前記
温風用送風機の送風空気の一部を導入する導入口と、通
気室の空気をバーナケース内に供給する二次空気孔と、
通気室の空気を燃焼筒内の下部に直接供給する送気孔と
が設けられ、さらに、前記燃焼筒内の前記バーナの炎口
部外周には、前記送気孔から供給された空気を燃焼筒の
内面に沿わせて流す空気案内板を兼ねた漏斗状の遮熱板
が設けられている構成である。
(D) Means for Solving the Problems In the present invention, a main body case having a hot air outlet, a blower chamber provided in the main body case, and a stand provided on a bottom wall plate of the blower chamber are provided. A combustion cylinder, a blower for warm air that blows air toward the combustion cylinder, a burner with a flame opening in the lower part of the combustion cylinder, and a bottomed cylindrical burner case that surrounds the outer periphery of the burner. A bottom plate is mounted below the bottom wall plate of the blower chamber, and an annular ventilation chamber is formed under the bottom wall plate by the bottom plate, the bottom wall plate, and the burner case. Is an inlet for introducing a part of the blown air of the warm air blower, and a secondary air hole for supplying the air in the ventilation chamber into the burner case,
An air supply hole for directly supplying the air in the aeration chamber to the lower portion in the combustion cylinder is provided, and further, the air supplied from the air supply hole of the combustion cylinder is provided on the outer periphery of the flame opening of the burner in the combustion cylinder. The configuration is such that a funnel-shaped heat shield plate that also serves as an air guide plate that flows along the inner surface is provided.
(ホ) 作用 このように構成すると、温風用送風機の送風空気の一部
は、導入口より送風室の底壁板の下に形成された通気室
内に流入し、この通気室に流入した空気は、送風室の底
壁板を冷却した後、その一部が、二次空気孔からバーナ
ケース内に噴出してバーナの燃焼炎に供給される一方、
残りの空気は、送気孔から燃焼筒内の下部に噴出し、こ
の燃焼筒内の下部に直接供給された空気は、遮熱板によ
って燃焼筒に内面に沿って流れ、この燃焼筒の内面を冷
却する。そのため、燃焼筒には二次空気供給用の穴を開
けることなく、温風用送風機の送風空気の一部を二次空
気としてバーナに供給でき、燃焼筒の強度を低下させな
いばかりでなく、燃焼筒の内面に沿って流れる空気で燃
焼筒を冷却するので、燃焼筒の耐久性を一層高めること
ができる。また、温風用送風機の送風空気の一部を、送
風室の底壁板の下に形成した環状の通気室に流入させる
とともに、バーナの炎口部外周には漏斗状の遮熱板を設
けているので、本体ケース内の下部に収容した他の部品
が、バーナの熱で加熱されるのを確実に防止できる。
(E) Operation With this configuration, a part of the blown air of the warm air blower flows into the ventilation chamber formed under the bottom wall plate of the ventilation chamber from the introduction port, and the air flowing into this ventilation chamber After cooling the bottom wall plate of the blower chamber, part of it is ejected from the secondary air holes into the burner case and supplied to the combustion flame of the burner,
The remaining air is ejected from the air supply holes to the lower part of the combustion cylinder, and the air directly supplied to the lower part of the combustion cylinder flows along the inner surface of the combustion cylinder by the heat shield plate, Cooling. Therefore, a part of the blast air of the warm air blower can be supplied to the burner as secondary air without making a hole for secondary air supply in the combustion cylinder, and not only does the strength of the combustion cylinder not decrease, but also the combustion Since the combustion cylinder is cooled by the air flowing along the inner surface of the cylinder, the durability of the combustion cylinder can be further enhanced. In addition, part of the blown air from the blower for warm air is introduced into the annular ventilation chamber formed under the bottom wall plate of the blower chamber, and a funnel-shaped heat shield plate is provided on the outer periphery of the burner flame opening. Therefore, it is possible to reliably prevent other components housed in the lower portion of the main body case from being heated by the heat of the burner.
(ヘ) 実施例 次に本発明の一実施例について説明すると、図中、
(1)は筐体状の本体ケースで、左右両側部及び背部を
一体状に形成した周側板(2)、天板(3)、底板
(4)及び温風吐出口(5)を設けた前面板(6)から
成り、該温風吐出口(5)は前面板(6)の下部寄りの
高さに開設してあると共にルーバー羽根(7)(7)…
を備えている。(8)は前記本体ケース(1)内の一側
部の底板(4)上に装設した油受皿で、該油受皿(8)
上に着脱自在に倒立せしめたカートリッジタンク(9)
から滴下する石油燃料を略一定量貯溜するようになって
いる。(10)は天板(3)に設けた蓋板で、該蓋板(1
0)を回動して仕切板(11)にて仕切られたタンク収納
室(12)を開放し、タンク収納室(12)内に前記カート
リッジタンク(9)を出入自在に収納できるようにして
いる。(13)は前記油受皿(8)内の石油燃料を汲み上
げる電磁ポンプで、該電磁ポンプ(13)の近傍に配設せ
る発振器(図示せず)にて駆動する。
(F) Example Next, an example of the present invention will be described.
(1) is a case-like main body case, which is provided with a peripheral side plate (2) integrally formed on the left and right sides and a back part, a top plate (3), a bottom plate (4) and a hot air outlet (5). It consists of a front plate (6), the hot air outlet (5) is opened at a height near the lower part of the front plate (6), and the louver blades (7) (7) ...
Is equipped with. (8) is an oil pan installed on the bottom plate (4) at one side in the main body case (1), and the oil pan (8)
Cartridge tank (9) that is detachably inverted on top
It is designed to store a substantially constant amount of petroleum fuel dripped from. (10) is a lid plate provided on the top plate (3).
(0) is rotated to open the tank storage chamber (12) partitioned by the partition plate (11) so that the cartridge tank (9) can be stored in and out of the tank storage chamber (12). There is. An electromagnetic pump (13) pumps up the petroleum fuel in the oil pan (8) and is driven by an oscillator (not shown) arranged near the electromagnetic pump (13).
(14)は本体ケース(1)内の他側部に装設せる給気用
送風機で、外部に臨ませた一端開口部にフィルター(1
5)を装着せる合成樹脂製の円筒ケース(16)を備え、
該円筒ケース(16)に連通せるファンケース(17)内の
ターボ型給気ファン(18)をモータ(19)にて回転さ
せ、前記ファンケース(17)に接続せる給気管(20)に
燃焼用の空気を強制供給する。(21)は前記ファンケー
ス(17)に設けた給気量を調節するための給気量可変ダ
ンパーである。
(14) is a blower for air supply that is installed on the other side of the main body case (1), and has a filter (1
It is equipped with a cylindrical case (16) made of synthetic resin for mounting 5),
A turbo type air supply fan (18) in a fan case (17) that can communicate with the cylindrical case (16) is rotated by a motor (19) and burned in an air supply pipe (20) connected to the fan case (17). Forcibly supply air for. Reference numeral (21) is a variable air supply amount damper provided in the fan case (17) for adjusting the amount of air supply.
(22)は前記本体ケース(1)の底板(4)上の略中央
部に固定せるバーナ支持台、(23)はバーナ支持台(2
2)上にバーナケース(24)を介して固定支持せる気化
式のバーナで、該バーナ(23)は前記電磁ポンプ(13)
から給油管(25)を介して供給された石油燃料を気化す
ると共に、この気化ガスと前記給気用送風機(14)から
給気管(20)を介して供給された燃焼一次空気を予混合
した後、この混合ガスを炎口部(26)より側方或いは斜
め側方に噴出して青火燃焼させる。
(22) is a burner support that can be fixed to the center of the bottom plate (4) of the body case (1), and (23) is a burner support (2
2) A vaporization type burner which is fixedly supported on the burner case (24) by the burner case (24), and the burner (23) is the electromagnetic pump (13).
The petroleum fuel supplied from the oil supply pipe (25) is vaporized, and the vaporized gas and the combustion primary air supplied from the air supply blower (14) via the air supply pipe (20) are premixed. After that, this mixed gas is jetted laterally or obliquely laterally from the flame mouth portion (26) and burned by a blue flame.
(27)は本体ケース(1)内の略中央部に形成せる温風
用送風機(28)の送風室で、該送風室(27)は後方部が
本体ケース(1)の周側板(2)に開設した室内空気の
吸込口(29)に且つ前方部が前記温風吐出口(5)に夫
々連通している。前記温風用送風機(28)は本体ケース
(1)の周側板(2)に装設したファンガード(30)
と、ファンガード(30)の中心位置に取付けたファンモ
ータ(31)と、このファンモータ(31)に軸着したプロ
ペラファン(32)とから構成してある。
(27) is a blower chamber of a warm air blower (28) formed in a substantially central portion of the main body case (1), and the rear portion of the blower chamber (27) has a rear side plate (2) of the main body case (1). The indoor air suction port (29) opened in the above and its front part communicates with the warm air discharge port (5). The warm air blower (28) is a fan guard (30) mounted on the peripheral side plate (2) of the main body case (1).
A fan motor (31) attached to the center of the fan guard (30), and a propeller fan (32) axially attached to the fan motor (31).
前記送風室(27)は左右両側壁板(33)(34)、上壁板
(35)、前壁板(36)及び底壁板(37)にて構成してお
り、前記底壁板(37)はアルミメッキ鋼板にて形成さ
れ、その略中央部には前記バーナケース(24)の上端開
口部を接合せる大径の貫通口(38)が開設されており、
その前方部分は斜め下方に向けて折曲せしめた下向き傾
斜部(39)が形成され、該下向き傾斜部(39)の前端縁
(40)は前記温風吐出口(5)の下辺に当接される。
(41)は前記底壁板(37)の下面で且つ前記バーナケー
ス(24)の周囲に環状の通気室(42)を形成すべき底壁
板(37)の下面側に装着せる下板で、前記通気室(42)
には底壁板(37)の後端部両側部分に開設した導入口
(43)より前記温風用送風機(28)の熱交換前の冷風が
導入される。(44)(44)…は前記バーナケース(24)
の前記通気室(42)に対応する周側部に多数穿設した径
が約3mmの二次空気孔で、バーナケース(24)の周側部
全周に略等間隔を存して設けてある。又、前記バーナケ
ース(24)は前記バーナ(23)の周囲を間隔を存て囲う
ように全体形状が有底円筒状を呈しており、その上端部
を底壁板(37)にスポット溶接にて固着している。(4
5)(45)…は前記底壁板(37)の上面側に立設固定し
た燃焼筒(46)内に前記通気室(42)内の空気を送気す
る多数の送気孔で、該送気孔(45)(45)…は径が約3m
mであり、前記貫通口(38)周囲の底壁板(37)に環状
に列設している。
The blower chamber (27) includes left and right side wall plates (33) (34), an upper wall plate (35), a front wall plate (36) and a bottom wall plate (37). 37) is formed of an aluminum-plated steel plate, and a large-diameter through hole (38) for joining the upper end opening of the burner case (24) is formed in the substantially central portion thereof.
The front portion thereof is formed with a downward inclined portion (39) which is bent obliquely downward, and a front end edge (40) of the downward inclined portion (39) is in contact with the lower side of the hot air outlet (5). To be done.
Reference numeral (41) is a lower plate which is mounted on the lower surface of the bottom wall plate (37) and on the lower surface side of the bottom wall plate (37) in which an annular ventilation chamber (42) is to be formed around the burner case (24). The ventilation chamber (42)
The cold air before the heat exchange of the warm air blower (28) is introduced through the inlets (43) formed on both sides of the rear end portion of the bottom wall plate (37). (44) (44) ... is the burner case (24)
A large number of secondary air holes having a diameter of about 3 mm are provided in the peripheral side portion corresponding to the ventilation chamber (42) and are provided at substantially equal intervals on the entire peripheral side portion of the burner case (24). is there. The burner case (24) has a cylindrical shape with a bottom so that the burner (23) surrounds the burner (23) at intervals, and its upper end is spot-welded to the bottom wall plate (37). And is stuck. (Four
5) (45) are a plurality of air supply holes for supplying the air in the ventilation chamber (42) into the combustion cylinder (46) which is vertically erected on the upper surface side of the bottom wall plate (37). The pores (45) (45) ... are about 3m in diameter
m, and they are annularly arranged in a row on the bottom wall plate (37) around the through hole (38).
前記燃焼筒(46)は内径が約130〜140mmで且つ高さが約
180mmの中空円筒状を呈し、その上部開口部分にはクロ
ス触媒等の浄化部材(47)が配設してあり、燃焼筒(4
6)内の燃焼ガスは浄化部材(47)を通過して送風室(2
7)内に流出する。(48)は燃焼筒(46)の前方部に設
けた炎確認窓、(49)は燃焼筒(46)内の下方部に配設
したステンレス鋼板にてなる遮熱板で、該遮熱板(49)
は第4図で示すように上部に向って拡大するように内向
きの傾斜面(50)を有する漏斗状を呈し、且つその一部
に点火器(51)を挿通する挿通孔(52)を開設してお
り、この遮熱板(49)は外周縁部(53)に設けた複数個
の突起(54)(54)…を前記燃焼筒(46)にスポット溶
接することにより、燃焼筒(46)の内側面と環状の透間
(55)を存して燃焼筒(46)に固定される。なお、環状
の透間(55)を形成するために前記突起(54)(54)…
を燃焼筒(46)側に設けることもできる。
The combustion cylinder (46) has an inner diameter of approximately 130 to 140 mm and a height of approximately
It has a hollow cylindrical shape of 180 mm, and a purifying member (47) such as a cross catalyst is arranged in the upper opening portion of the combustion cylinder (4
Combustion gas in 6) passes through the purification member (47) and blower chamber (2
7) Spill out into. (48) is a flame confirmation window provided in the front part of the combustion cylinder (46), and (49) is a heat shield plate made of stainless steel plate arranged in the lower part of the combustion cylinder (46). (49)
Shows a funnel shape having an inwardly sloping surface (50) so as to expand upward as shown in FIG. 4, and has an insertion hole (52) through which an igniter (51) is inserted. The heat shield plate (49) has been opened, and a plurality of projections (54) (54) provided on the outer peripheral edge portion (53) are spot-welded to the combustion cylinder (46) to form a combustion cylinder ( It is fixed to the combustion tube (46) with the inner side surface of 46) and the annular gap (55). The projections (54), (54), ... To form the annular gap (55).
Can also be provided on the combustion cylinder (46) side.
又、(56)は送風ガイド板である。Further, (56) is a blower guide plate.
本発明の構成は以上の如くであり、次に動作について説
明する。
The configuration of the present invention is as described above. Next, the operation will be described.
先ず、操作スイッチ(図示せず)を操作することにより
バーナ(23)が電気ヒータ(図示せず)にて予熱され、
操作開始後、約2〜3分経過すると、電磁ポンプ(13)
及び給気用送風機(14)が駆動して石油燃料と燃焼一次
空気がバーナ(23)に供給され、該バーナ(23)は炎口
部(26)に青火燃焼炎を形成して燃焼を開始する。
First, the burner (23) is preheated by an electric heater (not shown) by operating an operation switch (not shown),
About 2 to 3 minutes after starting the operation, the electromagnetic pump (13)
Also, the air supply blower (14) is driven to supply the petroleum fuel and the combustion primary air to the burner (23), and the burner (23) forms a blue flame combustion flame at the flame mouth portion (26) for combustion. Start.
バーナ(23)の燃焼開始と略同時に、温風用送風機(2
8)が駆動して外部空気が吸込口(29)より送風室(2
7)内に流入し、プロペラファン(32)の回転によって
正起された送風は燃焼筒(46)の外表面に接触して熱交
換されると共に、送風ガイド板(56)の上方へ案内され
た送風は燃焼筒(46)より流出するバーナ(23)の燃焼
排ガスと合流し、温風となって温風吐出口(5)より外
部に放出され温風暖房を行なう。
Almost at the same time when the burner (23) started to burn, a blower (2
8) is driven and external air is blown from the suction port (29) into the blower chamber (2
The air blown into the inside of 7) and raised by the rotation of the propeller fan (32) is brought into contact with the outer surface of the combustion cylinder (46) for heat exchange, and is also guided above the air blow guide plate (56). The blown air merges with the combustion exhaust gas of the burner (23) flowing out from the combustion cylinder (46), becomes hot air, and is discharged to the outside from the hot air outlet (5) to perform hot air heating.
一方、送風室(27)に送風された温風用送風機(28)の
熱交換前の冷風の一部は、導入口(43)から通気室(4
2)内に導入されてその冷却作用により底壁板(37)及
び下板(41)の温度上昇を抑制し、そして通気室(42)
内の空気は、二次空気孔(44)(44)…よりバーナケー
ス(24)内に流入すると共に送気孔(45)(45)…より
遮熱板(49)下方の燃焼筒(46)内にも送気され、透間
(55)を通って燃焼筒(46)の内側面全周にエアーカー
テンを生起して燃焼筒(46)を冷却する。
On the other hand, a part of the cold air before the heat exchange of the hot air blower (28) blown to the air blower chamber (27) flows from the inlet (43) to the ventilation chamber (4).
2) It is introduced into the inside of the bottom wall plate (37) and the lower plate (41) to suppress the temperature rise due to its cooling action, and the ventilation chamber (42).
The air inside flows into the burner case (24) through the secondary air holes (44) (44), and at the same time, the combustion cylinder (46) under the heat shield plate (49) from the air supply holes (45) (45). The air is also sent to the inside, and through the gap (55), an air curtain is generated around the entire inner surface of the combustion cylinder (46) to cool the combustion cylinder (46).
(ト) 発明の効果 本発明は以上の説明から明らかなように、温風吐出口を
有する本体ケースと、この本体ケース内に設けられた送
風室と、この送風室の底壁板上に立てて設けられた燃焼
筒と、この燃焼筒に向けて送風する温風用送風機と、燃
焼筒内の下部に炎口部を臨ませたバーナと、このバーナ
の外周を囲む有底筒状のバーナケースとを備え、前記送
風室の底壁板の下に下板を装着して、この下板と底壁板
とバーナケースとで前記底壁板の下に環状の通気室を形
成し、この通気室には、前記温風用送風機の送風空気の
一部を導入する導入口と、通気室の空気をバーナケース
内に供給する二次空気孔と、通気室の空気を燃焼筒内の
下部に直接供給する送気孔とが設けられ、さらに、前記
燃焼筒内の前記バーナの炎口部外周には、前記送気孔か
ら供給された空気を燃焼筒の内面に沿わせて流す空気案
内板を兼ねた漏斗状の遮熱板が設けられている構成とし
たことにより、燃焼筒には二次空気供給用の穴を開ける
ことなく、温風用送風機の送風空気の一部を二次空気と
してバーナに供給でき、燃焼筒の強度を低下させること
なく、二次空気を良好に供給できるは勿論のこと、燃焼
筒の内面に沿って冷却用の空気が流れるので、燃焼筒の
過熱を遮熱板と冷却用の空気流で防止し、燃焼筒の耐久
性を一層高めることができる。また、温風用送風機の送
風空気の一部を、送風室の底壁板の下に形成した環状の
通気室に流入させるとともに、バーナの炎口部外周に漏
斗状の遮熱板を設けたことにより、本体ケース内の下部
に収容した他の部品が、バーナの熱で加熱されるのを防
止でき、それら部品を確実に保護できる。
(G) Effect of the Invention As is clear from the above description, the present invention has a main body case having a warm air discharge port, a blower chamber provided in the main body case, and a stand on a bottom wall plate of the blower chamber. Provided in the combustion cylinder, a blower for warm air that blows air toward the combustion cylinder, a burner with a flame opening in the lower part of the combustion cylinder, and a bottomed cylindrical burner that surrounds the outer periphery of the burner. A case, and a lower plate is mounted below the bottom wall plate of the blower chamber, and the lower plate, the bottom wall plate, and the burner case form an annular ventilation chamber under the bottom wall plate. The ventilation chamber has an inlet for introducing a part of the blown air of the warm air blower, a secondary air hole for supplying the air of the ventilation chamber into the burner case, and a lower portion of the air of the ventilation chamber in the combustion cylinder. Is provided to the burner in the combustion cylinder. By providing a funnel-shaped heat shield plate that also serves as an air guide plate for flowing the air supplied from the combustion chamber along the inner surface of the combustion cylinder, the combustion cylinder has a hole for supplying secondary air. It is possible to supply a part of the blown air of the warm air blower to the burner as secondary air without opening it, and it is possible to satisfactorily supply the secondary air without lowering the strength of the combustion cylinder. Since the cooling air flows along the inner surface, overheating of the combustion cylinder can be prevented by the heat shield plate and the cooling air flow, and the durability of the combustion cylinder can be further enhanced. In addition, a part of the blown air of the blower for warm air was made to flow into an annular ventilation chamber formed under the bottom wall plate of the blower chamber, and a funnel-shaped heat shield plate was provided on the outer periphery of the burner flame opening. As a result, it is possible to prevent other components housed in the lower portion of the main body case from being heated by the heat of the burner, and to reliably protect those components.
【図面の簡単な説明】[Brief description of drawings]
第1図は本発明の実施例である燃焼式温風暖房機の全体
構成図、第2図は縦断面図、第3図は第2図の要部拡大
断面図、第4図は遮熱板の半断面図である。 (1)……本体ケース、(23)……バーナ、(24)……
バーナケース、(26)……炎口部、(27)……送風室、
(28)……温風用送風機、(37)……底壁板、(41)…
…下板、(42)……通気室、(44)……二次空気孔、
(45)……送気孔、(46)……燃焼筒、(49)……遮熱
板、(55)……透間。
FIG. 1 is an overall configuration diagram of a combustion type warm air heater according to an embodiment of the present invention, FIG. 2 is a vertical sectional view, FIG. 3 is an enlarged sectional view of an essential part of FIG. 2, and FIG. It is a half cross-sectional view of a plate. (1) …… Main body case, (23) …… Burner, (24) ……
Burner case, (26) …… flame mouth, (27) …… blower chamber,
(28) …… Blower for warm air, (37) …… Bottom wall plate, (41)…
… Lower plate, (42) …… Ventilation chamber, (44)… Secondary air hole,
(45) …… air supply hole, (46) …… combustion cylinder, (49) …… heat shield, (55) …… clearance.

Claims (2)

    【特許請求の範囲】[Claims]
  1. 【請求項1】温風吐出口を有する本体ケースと、この本
    体ケース内に設けられた送風室と、この送風室の底壁板
    上に立てて設けられた燃焼筒と、この燃焼筒に向けて送
    風する温風用送風機と、燃焼筒内の下部に炎口部を臨ま
    せたバーナと、このバーナの外周を囲む有底筒状のバー
    ナケースとを備え、前記送風室の底壁板の下に下板を装
    着して、この下板と底壁板とバーナケースとで前記底壁
    板の下に環状の通気室を形成し、この通気室には、前記
    温風用送風機の送風空気の一部を導入する導入口と、通
    気室の空気をバーナケース内に供給する二次空気孔と、
    通気室の空気を燃焼筒内の下部に直接供給する送気孔と
    が設けられ、さらに、前記燃焼筒内の前記バーナの炎口
    部外周には、前記送気孔から供給された空気を燃焼筒の
    内面に沿わせて流す空気案内板を兼ねた漏斗状の遮熱板
    が設けられていることを特徴とする燃焼式温風暖房機。
    1. A main body case having a hot air outlet, a blower chamber provided in the main body case, a combustion cylinder provided upright on a bottom wall plate of the blower chamber, and a combustion cylinder facing the combustion cylinder. A blower for warm air that blows air by a blower, a burner with a flame opening facing the bottom of the combustion cylinder, and a bottomed cylindrical burner case that surrounds the outer periphery of this burner, and the bottom wall plate of the blower chamber The lower plate is attached to the bottom, and the lower plate, the bottom wall plate, and the burner case form an annular ventilation chamber under the bottom wall plate, and in this ventilation chamber, the air blown by the blower for warm air is blown. An inlet for introducing a part of the above, and a secondary air hole for supplying the air in the ventilation chamber into the burner case,
    An air supply hole for directly supplying the air in the aeration chamber to the lower portion in the combustion cylinder is provided, and further, the air supplied from the air supply hole of the combustion cylinder is provided on the outer periphery of the flame opening of the burner in the combustion cylinder. A combustion-type hot air heater characterized by being provided with a funnel-shaped heat shield plate that also serves as an air guide plate that flows along the inner surface.
  2. 【請求項2】前記遮熱板が突起を介して燃焼筒に固定さ
    れていることを特徴とする特許請求の範囲第1項記載の
    燃焼式温風暖房機。
    2. The combustion type hot air heater according to claim 1, wherein the heat shield plate is fixed to the combustion cylinder via a protrusion.
JP59192328A 1984-09-13 1984-09-13 Combustion type hot air heater Expired - Lifetime JPH0781697B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59192328A JPH0781697B2 (en) 1984-09-13 1984-09-13 Combustion type hot air heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59192328A JPH0781697B2 (en) 1984-09-13 1984-09-13 Combustion type hot air heater

Publications (2)

Publication Number Publication Date
JPS6170317A JPS6170317A (en) 1986-04-11
JPH0781697B2 true JPH0781697B2 (en) 1995-09-06

Family

ID=16289458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59192328A Expired - Lifetime JPH0781697B2 (en) 1984-09-13 1984-09-13 Combustion type hot air heater

Country Status (1)

Country Link
JP (1) JPH0781697B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2737131B2 (en) * 1987-12-29 1998-04-08 松下電器産業株式会社 Hot air heater

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4721011U (en) * 1971-03-11 1972-11-09
JPS5815814U (en) * 1981-07-21 1983-01-31

Also Published As

Publication number Publication date
JPS6170317A (en) 1986-04-11

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