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JPS6042507A - Burner device - Google Patents

Burner device

Info

Publication number
JPS6042507A
JPS6042507A JP15001283A JP15001283A JPS6042507A JP S6042507 A JPS6042507 A JP S6042507A JP 15001283 A JP15001283 A JP 15001283A JP 15001283 A JP15001283 A JP 15001283A JP S6042507 A JPS6042507 A JP S6042507A
Authority
JP
Japan
Prior art keywords
spray plate
ceramic material
fuel
flow path
spray
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.)
Pending
Application number
JP15001283A
Other languages
Japanese (ja)
Inventor
Seiichi Takahashi
清一 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15001283A priority Critical patent/JPS6042507A/en
Publication of JPS6042507A publication Critical patent/JPS6042507A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/104Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet intersecting at a sharp angle, e.g. Y-jet atomiser

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

PURPOSE:To improve resistance to wear to enable the use of a spray plate for a long time, by a method wherein the spray plate is formed by a ceramic material and a ring is located between the spray plate and a cap nut to firmly secure them to each other. CONSTITUTION:A spray plate 1 is entirely formed by a ceramic material. This causes improvement of resistance to wear and permits maintaining of the strength of a fuel flow passage 5 and a mixture flow passage 7. The spray plate 1 of a ceramic material is tightened against a seat 3 by means of a cap nut 4 with a ring 11 located therebetween. This permits prevention of the occurrence of breakage through a low-value external force due to concentration of stress such as one-sided contact.

Description

【発明の詳細な説明】 なとの液状燃料を混合した燃料の燃焼に供して好適なバ
ーナ装置の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a burner device suitable for combustion of a fuel mixed with liquid fuel such as carbon dioxide.

従来のこの種バーナ装置は第1図ないし第3図に示すよ
うに,鋼製のスプレプレー)(01)およびバ・ツクプ
レー+− (02)が座 (03)にキャップナツト(
04)で抑圧固定されている。そして、スプレプレート
(01)には燃料流路(05) 。
In the conventional burner device of this type, as shown in Figs.
Suppression is fixed at 04). The spray plate (01) has a fuel flow path (05).

圧力媒体流路(06) 、および混合流路(07)か設
けられ,燃料(09)と加圧された蒸気または空気から
なる圧力媒体( 010 )か上記混合通路(07)内
で混合され,噴霧孔(08)より炉内に噴霧される。こ
のようなバーナ装置を,粉状面・ 形燃料と液状燃料と
の混合物からなる燃料の燃焼に使用すると,燃料流路(
05)の段(=Jの絞り部(011)や混合流路(07
)で摩耗か発生し。
A pressure medium flow path (06) and a mixing flow path (07) are provided, and a pressure medium (010) consisting of fuel (09) and pressurized steam or air is mixed in the mixing path (07), It is sprayed into the furnace from the spray hole (08). When such a burner device is used to burn fuel consisting of a mixture of powdered fuel and liquid fuel, the fuel flow path (
05) stage (=J constriction part (011) and mixing flow path (07)
) may cause wear.

短期間てスプレプレート(01)を交換しなければなら
ない不具合がある。また第3図に示すように,燃料流路
(05)および混合流路(07)内面をセラミ・ツタ材
( 012 )でコーティングするか,セラミック材の
細管を埋め込むものか提案されているか,これには次の
ような欠点かある。
There is a problem in which the spray plate (01) must be replaced after a short period of time. Also, as shown in Figure 3, has it been proposed to coat the inner surfaces of the fuel flow path (05) and mixing flow path (07) with ceramic ivy material (012) or to embed ceramic thin tubes? has the following drawbacks:

すなわち、スプレプレート(01)は鋼材であるためセ
ラミック材( 012 )にくらへて熱膨張係数か大き
く、燃料が通る流路(05) 、(07)の鋼材とセラ
ミ、り材(012)との間に一隙間か生し、そのために
燃料噴出方向かずれたり、セラミック材(01,2)内
面に引張り応力か加わり亀裂か生したりしやすい不具合
を有する。
In other words, since the spray plate (01) is made of steel, its coefficient of thermal expansion is larger than that of the ceramic material (012), and the fuel passages (05) and (07) are made of steel, ceramic, and ceramic (012). A gap is formed between the two, which causes the fuel to be ejected in a misaligned direction, and tensile stress is applied to the inner surface of the ceramic material (01, 2), which tends to cause cracks.

このためやはり短時間にスプレプレート(旧)を取り換
える必要かあり保守費の増大をもたらす不具合からはま
ぬかれない。
For this reason, it is necessary to replace the spray plate (old) in a short period of time, resulting in problems that increase maintenance costs.

本発明は上記従来装置の欠点を解消し、燃焼効率かよく
しかも長時間の使用に耐えるバーナ装置を提供すること
を目的とし、その要旨は。
The purpose of the present invention is to eliminate the drawbacks of the conventional devices described above, provide a burner device with good combustion efficiency, and which can be used for a long time.The gist thereof is as follows.

スプレプレート及び座かキャップナツトによって結合さ
れ、かつ上記スプレプレート前端面の周方向に互に間隔
をおいて開口する複数の混合流路と、そ11それ上記混
合流路に接続された複数の燃料流路とを具えたバーナ装
置において。
A spray plate and a plurality of mixing channels connected by a seat cap nut and opened at intervals in the circumferential direction of the front end surface of the spray plate, and a plurality of fuels connected to the mixing channels. In a burner device comprising a flow path.

上記スプレプレートをセラミック材により形成するとと
もに上記スプレプレートとキャップナ、1・の間にリン
クを介在させて固着したノく−子装置にある。
The spray plate is formed of a ceramic material, and a link is interposed between the spray plate and the capner 1 to secure the spray plate to the capner.

そして1本発明によれば、スプレプレートかセラミック
祠によって形成されるので、耐摩耗性か格段に向上し、
またスプレプレー1・はリングによって外表面か覆われ
るので、キャップナツトを回す際に表面か損傷せず、従
ってスプレプレートは長期間使用することか可能となる
ものである。
According to the present invention, since it is formed by a spray plate or a ceramic stone, the wear resistance is greatly improved.
Also, since the outer surface of the spray plate 1 is covered by the ring, the surface will not be damaged when turning the cap nut, so that the spray plate can be used for a long period of time.

以下本発明を石炭などの粉状固形燃料と石油なとの液状
燃料との混合燃料を燃焼させるノ・−す装置に適用した
一例を第4図ないし第6図に基つき説明する。
An example in which the present invention is applied to a combustion apparatus for burning a mixed fuel of a powdered solid fuel such as coal and a liquid fuel such as petroleum will be described below with reference to FIGS. 4 to 6.

(1)はスプレプレー”l−て、全体かセラミック材で
形成されている。(2)はハックプレート、 +3)は
座、(4)はキャンプナツト、 fil+はリングであ
り。
(1) is a spray plate and is made entirely of ceramic material. (2) is a hack plate, +3) is a seat, (4) is a camp nut, and fil+ is a ring.

リンク旧)、スプレプレー1− +1.+ 、およびノ
\ツクプレート(2)かキャップナツト+4+により座
(3)へ抑圧固定されている。スプレプレート(1)に
は燃料流路(5)、圧力媒体流路(6)、および混合流
路(7)か設けられており、燃料(9)および圧力媒体
aO)か夫々座(3)、ハックプレート(2)を介して
燃料流路(5)および圧力媒体流路(6)まで導かれる
ようになって (いる。
old link), spray play 1- +1. +, and is pressed and fixed to the seat (3) by the lock plate (2) or cap nut +4+. The spray plate (1) is provided with a fuel flow path (5), a pressure medium flow path (6), and a mixing flow path (7). , and are led to the fuel flow path (5) and pressure medium flow path (6) via the hack plate (2).

なお、」−記リング(11)は1円周上の一部に軸方向
の切り込み(スリット)を設けておくと、キャップナツ
ト(4)てスプレプレート(1)にリンク(Illを抑
圧固着する際にリンク旧)の嵌合性かよくなる。また、
上記リンク旧)は円周方向に複数分割することもてきる
In addition, if a notch (slit) in the axial direction is provided in a part of the ring (11) on one circumference, the cap nut (4) will press and fix the link (Ill) to the spray plate (1). In some cases, the fit of the old link will improve. Also,
The link (old link above) can also be divided into multiple parts in the circumferential direction.

以」二のようなバーナ装置において、粉状固形燃料と液
状燃料とか混合された燃料(9)は、燃料流路(5)を
通り、圧力媒体(10)と混合流路(7)内で混合し1
図示されない火炉内へ噴霧孔(8)から噴霧されてよシ
入焼する。
In the burner device as described above, the fuel (9), which is a mixture of powdered solid fuel and liquid fuel, passes through the fuel flow path (5) and is mixed with the pressure medium (10) in the mixing flow path (7). Mix 1
It is sprayed from a spray hole (8) into a furnace (not shown) and then quenched.

このようなバーナ装置によれは次のような効果を得るこ
とかできる。
By using such a burner device, the following effects can be obtained.

(ア) スプレプレー1− fl、+をセラミ、り材と
することで耐摩耗性か向上する。モース硬度は、鉄か4
5.アルミナ素地セラミックか90であるので耐摩耗性
は大幅に向上する。
(a) Spray Prey 1- By using fl, + as a ceramic material, the abrasion resistance is improved. Mohs hardness is iron or 4
5. Since it is made of alumina-based ceramic or 90, wear resistance is greatly improved.

イ) スプレプレー1− fll全体をセラミック祠と
することで、燃料流路+5) 、 /I!合流路(7)
の強度か保てる。
B) Spray play 1- By making the entire fll a ceramic shrine, the fuel flow path +5), /I! Merging path (7)
It can maintain the strength of

(両流路f5] 、 +71内面のみをセラミック材と
し。
(Both channels f5] Only the inner surface of +71 is made of ceramic material.

スプレプレーI・(1)を鋼材とした場合には、)11
膨張の差から、セラミック材流路の内側に大きな引張り
応力か作用する。ところでセラミック材は圧縮強さに優
れていても2引張り強さか小さく、引張り強さ/圧縮強
さ一1710程度と鋳鉄の174より小さい。これはセ
ラミック祠は脆性破壊を生し易いことを意味する。従っ
て流路のみをセラミック材とすると亀裂か生l−る割合
か多くなる。
Spray spray I・If (1) is made of steel, )11
Due to the difference in expansion, a large tensile stress acts on the inside of the ceramic material channel. By the way, even though ceramic materials have excellent compressive strength, their tensile strength is only 2, which is about 1710 (tensile strength/compressive strength), which is smaller than cast iron's 174. This means that ceramic shrines are susceptible to brittle fracture. Therefore, if only the flow path is made of ceramic material, the rate of cracks will increase.

又、燃料か通る流路のみをセラミ、り祠とすると、スプ
レプレー1− (1)の調料との熱膨張差により、セラ
ミック材かずれるなとにより燃料噴出方向か変化する恐
れもある。)(つ) セラミック材のスプレプレート(
1)はリング旧)を介在させて、キャップナツト(4)
で座(3)に締めイ」けるので1片当り等の応力集中に
より小さい外力で破壊することを防止できる。
Furthermore, if only the flow path through which the fuel passes is made of ceramic or ash, there is a risk that the direction of fuel injection may change due to the difference in thermal expansion with the preparation of spray spray 1-(1) and the ceramic material may shift. ) (1) Ceramic material spray plate (
1) is the ring (old), and the cap nut (4)
Since it is tightened to the seat (3), it is possible to prevent breakage due to small external force due to stress concentration on each piece.

(セラミック材は引張り応力で破壊するから発生する最
大引張応力をセラミック材の引張強度以下にしておく必
要がある。
(Ceramic materials break under tensile stress, so the maximum tensile stress generated must be kept below the tensile strength of the ceramic material.

(月 燃料流路(5)、混合流路(7)をエツチング処
理することにより強度を増加できる。と同時に燃料の流
れかスムーズになる。
(Moon) By etching the fuel flow path (5) and mixing flow path (7), the strength can be increased.At the same time, the flow of fuel becomes smoother.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来のものの平面図、第2図は第1図の■−■
矢視図、第3図は従来のものの他の例を示す部分断面図
 第4図は本発明の一実施例を示す平面図、第5図は第
4図の■−■矢視図である。 1 スプレプレート、2 バンクプレート。 3 座、4・・キャップナツト、5・・燃料流路。 6 圧力媒体流路、7 混合流路、11リング。 第1図 第2図 f 絶4図 晃5図
Figure 1 is a plan view of the conventional model, and Figure 2 is the same as in Figure 1.
Fig. 3 is a partial sectional view showing another example of the conventional one; Fig. 4 is a plan view showing an embodiment of the present invention; Fig. 5 is a view taken from ■-■ in Fig. 4. . 1 spray plate, 2 bank plate. 3. Seat, 4. Cap nut, 5. Fuel flow path. 6 pressure medium channel, 7 mixing channel, 11 ring. Fig. 1 Fig. 2 f Fig. 4 Fig. 5 Fig. 5

Claims (1)

【特許請求の範囲】[Claims] スプレプレート及び座がキャップナツトによって結合さ
れ、かつ上記スプレプレート前端面の周方向に互に間隔
をおいて開口する複数の混合流路と、それぞれ上記混合
流路に接続された複数の燃料流路とを具えたバーナ装置
において上記スプレプレートをセラミ・ツク材により形
成するとともに上記スプレプレートとキャップナツトの
間にリングを介在させて固着したことを特徴とするバー
ナ装置。
A spray plate and a seat are connected by a cap nut, and a plurality of mixing channels are opened at intervals in the circumferential direction of the front end surface of the spray plate, and a plurality of fuel channels are respectively connected to the mixing channels. What is claimed is: 1. A burner device comprising: the spray plate made of ceramic material; and a ring interposed between the spray plate and a cap nut to secure the spray plate to the cap nut.
JP15001283A 1983-08-17 1983-08-17 Burner device Pending JPS6042507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15001283A JPS6042507A (en) 1983-08-17 1983-08-17 Burner device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15001283A JPS6042507A (en) 1983-08-17 1983-08-17 Burner device

Publications (1)

Publication Number Publication Date
JPS6042507A true JPS6042507A (en) 1985-03-06

Family

ID=15487542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15001283A Pending JPS6042507A (en) 1983-08-17 1983-08-17 Burner device

Country Status (1)

Country Link
JP (1) JPS6042507A (en)

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