JPH0238220Y2 - - Google Patents
Info
- Publication number
- JPH0238220Y2 JPH0238220Y2 JP5667786U JP5667786U JPH0238220Y2 JP H0238220 Y2 JPH0238220 Y2 JP H0238220Y2 JP 5667786 U JP5667786 U JP 5667786U JP 5667786 U JP5667786 U JP 5667786U JP H0238220 Y2 JPH0238220 Y2 JP H0238220Y2
- Authority
- JP
- Japan
- Prior art keywords
- pot
- combustion
- air
- flame
- disk
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 27
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
ポツト内上部中央に逆皿状円板を有するポツト
式バーナの異常燃焼を検出する安全装置に関す
る。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a safety device for detecting abnormal combustion in a pot-type burner having an inverted dish-shaped disc at the center of the top inside the pot.
有底筒体のポツトの上部中央に逆皿状の円板を
配置し、該皿板側方のポツト壁に集中して空気孔
をあけ、かつ円板の周辺部にリング状に並べて複
数個の小孔を設けたポツト式バーナは、特公昭47
−42527号、実公昭53−40412号、実公昭55−
14888号他多数の実施例があり、ポツト式バーナ
の一方式として知られている。
An inverted dish-shaped disc is placed in the center of the upper part of the bottomed cylindrical pot, air holes are concentrated on the pot wall on the side of the dish plate, and a plurality of pots are arranged in a ring around the periphery of the disc. The pot-type burner with small holes was developed in 1977.
−42527, Jitko No. 53-40412, Jitsukō 55-
There are many examples including No. 14888, and it is known as a type of pot-type burner.
上記ポツト式バーナでは逆皿状円板より下方の
ポツト内部が主として空気と灯油の気化ガスとの
混合域となつており、該混合ガスの燃焼は逆皿状
円板とポツトとの間隙から該間隙上部にかけて集
中してあけた空気孔から供給される空気によつて
行なわれる。そして逆皿状円板に設けた小孔は混
合域の圧力が異常に上昇した時の圧力抜きとして
作用しており、該小孔から抜けた混合ガスが完全
燃焼しやすい様に燃焼域に近い逆皿状円板の周辺
に配置している。 In the pot-type burner mentioned above, the inside of the pot below the inverted dish-shaped disc is mainly a mixing area of air and vaporized kerosene gas, and the combustion of the mixed gas is carried out from the gap between the inverted dish-shaped disc and the pot. This is done using air supplied from air holes that are concentrated in the upper part of the gap. The small holes provided in the inverted dish-shaped disk act as a pressure relief when the pressure in the mixing zone increases abnormally, and the mixed gas that escapes from the small holes is located close to the combustion zone so that it can be easily completely combusted. It is arranged around an inverted dish-shaped disc.
一方バーナの異常燃焼は空気量と灯油の量との
バランスがくずれた時に起るものであり、空気量
によつてバーナの炎の長さが変ることから空気量
過剰で炎が短くなつた時は正常位置に取付けられ
た炎検出電極に炎が届かず炎電流の減少によつて
異常を検出し、逆に空気不足で炎が長くなつた時
は通常燃焼中は炎が届かない位置に炎検出電極を
取付けこの炎検出電極の炎電流の増加で異常を検
出する方式が実願昭58−31861号他で知られてい
る。 On the other hand, abnormal combustion in a burner occurs when the balance between the amount of air and the amount of kerosene is lost.The length of the burner flame changes depending on the amount of air, so when the amount of air is excessive and the flame becomes short. When the flame does not reach the flame detection electrode installed in the normal position, an abnormality is detected by the decrease in flame current.On the other hand, when the flame becomes longer due to lack of air, the flame reaches the position where the flame normally cannot reach during combustion. A method is known from Utility Model Application No. 58-31861 and others in which a detection electrode is attached and an abnormality is detected by an increase in the flame current of the flame detection electrode.
ところで通常燃焼中の炎は一定の範囲でチラつ
いており、このチラつきがあつても炎検知電極は
正常燃焼と判断する様に構成されている為空気量
過剰によつて炎が短かくなる時非常に炎が小さく
なつて始めて炎なしが検出されるから検出のおく
れが目立つものであつた。
By the way, the flame during normal combustion flickers within a certain range, and even if this flickering occurs, the flame detection electrode is configured to judge it as normal combustion, so if the flame becomes short due to excessive air flow, it will cause an emergency. Since no flame was detected only after the flame became small, the delay in detection was noticeable.
この考案はポツト式バーナの構成を利用して異
常状態を検出するもので、１は送風機７によつて
燃焼空気が強制的に送風される風胴、２は風胴１
内に取付けられた有底筒体のポツトである。該ポ
ツト２は上部が風胴１壁と一体に取付けられてお
り、側壁には空気孔４があけられている。３はポ
ツト２内で上部中央に配置された逆皿状円板、８
は円板３よりも下方のポツト２壁に取付けた混合
リングである。前記ポツト２にあけた空気孔４は
特に逆皿状円板３の側方に集中してあけてあり、
この部分の空気孔４から供給する空気が主として
燃焼に用いられ、逆皿状円板３下方に対応するポ
ツト２側壁の空気孔４から供給する空気は主とし
て石油ガスとの混合に用いられている。５は逆皿
状円板３にあけた小孔で、円板３の周辺部にリン
グ状に複数個配置してある。６は皿状円板３の下
方から小孔５の一つにのぞませた異常検出電極で
あり、該異常検出電極６が炎電流を検出するとバ
ーナの燃焼が停止する様になつている。
This idea detects an abnormal state by using the configuration of a pot burner.
It is a cylindrical pot with a bottom attached inside. The upper part of the pot 2 is integrally attached to the wall of the wind barrel 1, and air holes 4 are bored in the side wall. 3 is an inverted dish-shaped disk placed in the upper center of pot 2, 8
is a mixing ring attached to the wall of pot 2 below disk 3. The air holes 4 formed in the pot 2 are concentrated particularly on the sides of the inverted dish-shaped disc 3,
The air supplied from the air holes 4 in this part is mainly used for combustion, and the air supplied from the air holes 4 on the side wall of the pot 2 corresponding to the lower part of the inverted dish-shaped disc 3 is mainly used for mixing with oil gas. . Reference numeral 5 denotes small holes drilled in the inverted dish-shaped disc 3, and a plurality of small holes are arranged in a ring shape around the periphery of the disc 3. Reference numeral 6 denotes an abnormality detection electrode that is placed into one of the small holes 5 from below the dish-shaped disc 3, and when the abnormality detection electrode 6 detects flame current, combustion of the burner is stopped.
９はポツト２へ燃料を供給する電磁ポンプから
なる燃料供給器、１０はポツト２の予熱兼用の点
火ヒータ、１１は炎検知電極である。該炎検知電
極１１は炎電流を検出時バーナの燃焼が継続され
る様になつている。 9 is a fuel supply device consisting of an electromagnetic pump that supplies fuel to the pot 2; 10 is an ignition heater that also serves as preheating of the pot 2; and 11 is a flame detection electrode. The flame detection electrode 11 is designed so that the burner continues to burn when a flame current is detected.
ポツト式バーナの点火から燃焼の継続は従来の
ものと変りなく、点火ヒータ１０と送風機７に通
電して燃料供給器９によつて燃料をポツト２に供
給すると着火燃焼を開始する。主たる燃焼は逆皿
状円板３側方の空気孔４から供給される空気によ
つて行なわれ炎検知電極１１が炎電流を検出して
バーナの燃焼が継続される。
The continuation of combustion from ignition of the pot type burner is the same as in the conventional one, and when the ignition heater 10 and the blower 7 are energized and fuel is supplied to the pot 2 by the fuel supply device 9, ignition combustion starts. The main combustion is carried out by air supplied from the air holes 4 on the sides of the inverted dish-shaped disc 3, and the flame detection electrode 11 detects the flame current to continue combustion in the burner.
ところでポツト２内に送られた燃料は燃焼熱で
気化し、円板３下方に対応する空気孔４からポツ
ト２内に供給する空気と混合ガスを作り、円板３
とポツト２壁との間隙から上方に流れて燃焼する
為、逆皿状円板３の下方には大きな炎電流が流れ
る程燃焼によるイオン化が起きていない。また逆
皿状円板３の小孔５から上方へ抜ける混合ガスの
燃焼もこの部分に空気が届きにくく、この部分も
大きな炎電流が流れる程燃焼のイオン化は起きて
いない。 By the way, the fuel sent into the pot 2 is vaporized by the heat of combustion, and a mixed gas is created with the air supplied into the pot 2 from the air hole 4 corresponding to the lower part of the disk 3.
Since the flame flows upward through the gap between the flame and the wall of the pot 2 and burns, ionization due to combustion does not occur to the extent that a large flame current flows below the inverted dish-shaped disk 3. In addition, when the mixed gas escapes upward from the small hole 5 of the inverted dish-shaped disk 3, air is difficult to reach this part, and ionization of combustion does not occur to the extent that a large flame current flows in this part as well.
空気過剰の状態が起ると空気孔４からポツト２
内に供給される空気量が増加し、燃焼が逆皿状内
板３下部のポツト２内でも行なわれ（混合域で一
部燃焼が行なわれる為良好な混合ガスが得にく
い）、また円板側方の空気孔４から供給される空
気量が多くなる為小さな炎で燃焼が完了でき、か
つ炎が吹き飛ばされて不完全燃焼ガスが排出しや
すくなる。 When an over-air condition occurs, air is removed from air hole 4 to pot 2.
The amount of air supplied to the interior of the disk increases, and combustion also takes place in the pot 2 at the bottom of the inverted dish-shaped inner plate 3 (partial combustion occurs in the mixing area, making it difficult to obtain a good mixed gas). Since the amount of air supplied from the side air holes 4 increases, combustion can be completed with a small flame, and the flame is blown off, making it easier to discharge incomplete combustion gas.
そしてこの異常状態を混合域に於ける炎電流で
検出する時、燃焼によるイオン化が進み炎電流の
増加は認められるが大きな変化ではない。しかし
逆皿状円板３の小孔５に着目すると、円板３上部
は空気過剰によつて新鮮な空気が届きやすくなつ
ており、小孔５から上方へ抜ける空気の燃焼が通
常燃焼時と比べて非常に促進しているから、異常
検出電極６を皿状円板３の下方から小孔５にのぞ
ませた時大きな炎電流が検出できる様になつた。 When this abnormal state is detected by the flame current in the mixing region, ionization due to combustion progresses and an increase in the flame current is observed, but it is not a major change. However, if we focus on the small holes 5 of the inverted dish-shaped disk 3, we can see that the upper part of the disk 3 has an excess of air, making it easier for fresh air to reach, and the combustion of the air that escapes upward from the small holes 5 is different from normal combustion. Since the flame current is greatly accelerated in comparison, a large flame current can now be detected when the abnormality detection electrode 6 is looked into the small hole 5 from below the dish-shaped disk 3.
以上の様にこの考案は逆皿状円板３の下部の混
合域に異常検出電極６を挿入し、更にその先端を
円板３の小孔５にのぞませたから空気過剰時燃焼
によるイオン化が進み確実に炎電流の増加が検出
できる様になつた。この為異常検出電極６による
炎電流検出時バーナの燃焼を停止する様に設定す
れば、空気過剰の異常燃焼に素早く対応できポツ
ト式バーナの安全性が高まるものとなつた。
As described above, in this invention, the abnormality detection electrode 6 is inserted into the mixing area at the bottom of the inverted dish-shaped disk 3, and its tip is made to look into the small hole 5 of the disk 3, so that ionization due to combustion when there is excess air is prevented. As time progressed, it became possible to reliably detect an increase in flame current. Therefore, by setting the burner to stop combustion when the flame current is detected by the abnormality detection electrode 6, abnormal combustion caused by excess air can be quickly dealt with, and the safety of the pot burner can be improved.
図面はこの考案品の断面図である。
１……風胴、２……ポツト、３……逆皿状円
板、４……ポツトの空気孔、５……円板の小孔、
６……異常検出電極。
The drawing is a cross-sectional view of this device. 1...Wind barrel, 2...Pot, 3...Inverted dish-shaped disc, 4...Air hole in pot, 5...Small hole in disc,
6... Abnormality detection electrode.
Claims (1)
に装置され上部が風胴１壁に取付けられた有底筒
体のポツト２と、ポツト２内で上部中央に配置さ
れた逆皿状円板３と、円板３側方のポツト２壁に
集中してあけた空気孔４と、円板３の周辺部にリ
ング状に配置した複数個の小孔５とを有するポツ
ト式バーナに於て、皿状円板３の下方から小孔５
にのぞませて異常検出電極６を取付け、該異常検
出電極６は炎電流検出時バーナの燃焼を停止する
ポツト式バーナの安全装置。 A wind barrel 1 through which combustion air is forcedly blown, a bottomed cylindrical pot 2 that is installed inside the wind barrel 1 and whose upper part is attached to the wall of the wind barrel 1, and an inverted dish placed in the center of the upper part of the pot 2. A pot type burner having a circular disk 3, air holes 4 concentrated on the wall of the pot 2 on the side of the disk 3, and a plurality of small holes 5 arranged in a ring shape around the circumference of the disk 3. , the small hole 5 is inserted from the bottom of the dish-shaped disk 3.
An abnormality detection electrode 6 is installed in front of the pot, and the abnormality detection electrode 6 is a safety device for pot-type burners that stops combustion of the burner when flame current is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5667786U JPH0238220Y2 (en) | 1986-04-15 | 1986-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5667786U JPH0238220Y2 (en) | 1986-04-15 | 1986-04-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62172940U JPS62172940U (en) | 1987-11-02 |
| JPH0238220Y2 true JPH0238220Y2 (en) | 1990-10-16 |
Family
ID=30885705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5667786U Expired JPH0238220Y2 (en) | 1986-04-15 | 1986-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238220Y2 (en) |
-
1986
- 1986-04-15 JP JP5667786U patent/JPH0238220Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62172940U (en) | 1987-11-02 |
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