JPH0572697U - Smoke prevention device for marine chimney - Google Patents
Smoke prevention device for marine chimneyInfo
- Publication number
- JPH0572697U JPH0572697U JP2052392U JP2052392U JPH0572697U JP H0572697 U JPH0572697 U JP H0572697U JP 2052392 U JP2052392 U JP 2052392U JP 2052392 U JP2052392 U JP 2052392U JP H0572697 U JPH0572697 U JP H0572697U
- Authority
- JP
- Japan
- Prior art keywords
- chimney
- air
- outer cylinder
- duct
- exhaust gas
- 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
Links
Landscapes
- Incineration Of Waste (AREA)
Abstract
(57)【要約】
【目的】 多くの空気を取入れ、排気ガスの効率的な吹
上げができ、排気ガスの居住区への巻き込みを阻止でき
る舶用煙突の煙害防止装置を提供しようとするものであ
る。
【構成】 舶用煙突の煙突外筒2において、煙突外筒2
の天板3位置より下方の頂部前面に設ける空気取入口4
と、空気取入口4から煙突外筒2内に煙突内筒7を内在
して両舷側に分岐し、煙突外筒2後部で合流し、かつ、
前方から後方に向かって流通断面積を絞った形状の上下
二段のダクト5と、ダクト5後端となる煙突外筒2後面
に設ける空気吹出口6と、空気吹出口6を覆って上方の
み開放する空気吹上ガイド8とからなり、煙突からの排
気ガスの吹出しを該空気の上方への吹出しと共に排出さ
せてなるものである。
(57) [Summary] [Purpose] To provide a smoke chimney prevention device for a marine chimney that can take in a large amount of air, efficiently blow up exhaust gas, and prevent entrainment of exhaust gas in a living area. is there. [Configuration] In a chimney outer cylinder 2 of a marine chimney, the chimney outer cylinder 2
Air inlet 4 provided on the front of the top below the top plate 3 position
And an inner chimney cylinder 7 inside the chimney outer cylinder 2 from the air intake port 4 to branch to both port sides, join at the rear part of the chimney outer cylinder 2, and
The upper and lower two-stage duct 5 having a shape in which the flow cross-sectional area is narrowed from the front to the rear, the air outlet 6 provided on the rear surface of the chimney outer cylinder 2 that is the rear end of the duct 5, and the air outlet 6 is covered only above. The air blow-up guide 8 is opened, and the exhaust gas blown out from the chimney is discharged together with the air blown upward.
Description
【0001】[0001]
この考案は、船舶に装備される煙突から吹出す排気ガスによって生じる煙害を 防止する装置に関するものである。 The present invention relates to a device for preventing smoke damage caused by exhaust gas discharged from a chimney mounted on a ship.
【0002】[0002]
従来、この種の煙害防止装置としては、出願人は、煙突外筒頂部の前方から航 行時に生じる空気流をダクト内に取入れて、煙突内筒後方に上向きに吹上げ、煙 突内筒から出る排気ガスが居住区に入り込むのを防ぐものを実用新案登録出願し ている。(例えば、平成2年7月25日出願、出願番号 実願平2−79564 号の舶用煙突の煙害防止装置参照)が知られている。 Conventionally, as a smoke pollution control device of this type, the applicant takes in the airflow generated during navigation from the front of the top of the chimney outer cylinder into the duct and blows it upward to the rear of the chimney inner cylinder, We have applied for a utility model registration to prevent the exhaust gas from entering the residential area. (For example, see the application on July 25, 1990, the application number: Japanese Patent Application No. 2-79564, and refer to the smoke chimney prevention device for a marine chimney).
【0003】[0003]
従来の技術で述べた考案では、実願平2−79564号公報の考案では、ダク トは煙突外筒の頂部、すなわち、天板位置上に設けており、天板から煙突外筒上 端までと空気取入口の高さが制限され、空気取入口を広く設けることが制限され 、取入れる空気量が少なくなり、排気ガスが充分吹上げられないという問題点を 有していた。 In the invention described in the prior art, in the invention of Japanese Patent Application No. 2-79564, the duct is provided on the top of the chimney outer cylinder, that is, on the top plate position, and from the top plate to the upper end of the chimney outer cylinder. In addition, the height of the air intake was limited, the air intake was wide, and the amount of air taken in was small, so exhaust gas could not be sufficiently blown up.
【0004】 また、煙突内筒後方に空気流を吹出すので、煙突内筒の吹出口から出た直後の 排気ガスの吹出し圧が、空気流の流圧より高くなる場合があり、排気ガスが充分 吹き上げられないという問題点を有していた。Further, since the air flow is blown out to the rear of the chimney inner cylinder, the blowout pressure of the exhaust gas immediately after it exits the outlet of the chimney inner cylinder may be higher than the flow pressure of the air flow, and the exhaust gas It had a problem that it could not be blown up sufficiently.
【0005】 この考案は、従来の技術の有するこのような問題点に鑑みてなされたものであ り、その目的とするところは、多くの空気を取入れ、排気ガスの効率的な吹上げ ができ、居住区への排気ガスの巻き込みを阻止できる舶用煙突の煙害防止装置を 提供しようとするものである。The present invention has been made in view of such problems of the conventional technology, and the purpose thereof is to take in a large amount of air and to efficiently blow up exhaust gas. The present invention aims to provide a smoke chimney prevention device for a marine chimney that can prevent the inclusion of exhaust gas in a living area.
【0006】[0006]
上記目的を達成するために、この考案は、舶用煙突の煙突外筒において、該煙 突外筒の天板位置より下方の頂部前面に設ける空気取入口と、該空気取入口から 該煙突外筒内に煙突内筒を内在して両舷側に分岐し、該煙突外筒後部で合流し、 かつ、前方から後方に向かって流通断面積を絞った形状の上下二段のダクトと、 該ダクト後端となる該煙突外筒後面に設ける空気吹出口と、該空気吹出口を覆っ て上方のみ開放する空気吹上ガイドとから構成され、煙突からの排気ガスの吹出 しを該空気の上方への吹出しと共に排出させてなるものである。 In order to achieve the above-mentioned object, the present invention relates to a chimney outer cylinder of a marine chimney, and an air intake provided on a front surface of a top of the chimney outer cylinder below a top plate position of the chimney outer cylinder and the chimney outer cylinder from the air intake. A chimney inner tube is internally located inside and branched to both port sides, merges at the rear part of the chimney outer tube, and two upper and lower ducts having a shape in which the flow cross-sectional area is narrowed from the front to the rear, and the duct rear It is composed of an air outlet provided on the rear surface of the chimney outer cylinder, which is the end, and an air blow-up guide that covers the air outlet and opens only at the upper side, and blows out the exhaust gas from the chimney to the upper side. It is made to be discharged together with it.
【0007】[0007]
天板位置より下方に設ける空気取入口は、天板位置より上方に設けるより高さ 方向の制限が小さいから空気取入口の面積を広くとることを可能にする。 The air intake provided below the top plate position has a smaller height limitation than the air intake provided above the top plate position, which allows a large area of the air intake.
【0008】 煙突外筒後面に設ける空気吹出口は、煙突内筒の吹出口から少し離れているの で、排気ガスの吹出し圧が下降した位置での空気の上方への吹出しを可能にする 。The air outlet provided on the rear surface of the outer stack of the chimney is slightly apart from the outlet of the inner cylinder of the chimney, so that the air can be blown upward at a position where the blowout pressure of the exhaust gas is lowered.
【0009】 空気吹出口を覆って上方のみ開放する空気吹上ガイドは、該空気吹出口を吹出 した空気を、煙突内筒から出る排気ガスに向かって、上方に導く。The air blowing guide that covers the air outlet and opens only upward guides the air blown from the air outlet upward toward the exhaust gas emitted from the chimney inner cylinder.
【0010】[0010]
実施例について、図面を用いて説明すると、図1および図2に示すように、船 体上部構造物1上に煙突外筒2が突設されており、煙突外筒2内には主機用およ び補機用の煙突内筒7が天板3を貫通して配管されている。 An embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, a chimney outer cylinder 2 is provided so as to project on the upper structure 1 of the hull, and the chimney outer cylinder 2 is provided inside the chimney outer cylinder 2. A chimney inner cylinder 7 for auxiliary machinery is also pierced through the top plate 3.
【0011】 煙突外筒1の天板3位置より下方の頂部前面に空気取入口4を設けて、空気取 入口4から煙突外筒1内に煙突内筒7を内在して両舷側に分岐する上下二段のダ クト5を設け、ダクト5は煙突外筒1後部で合流し、ダクト5は前方から後方に 向かって流通断面積を絞った形状とする。An air intake port 4 is provided on the front surface of the top of the chimney outer cylinder 1 below the top plate 3 position, and a chimney inner cylinder 7 is internally provided in the chimney outer cylinder 1 from the air intake port 4 and branched to both port sides. Two ducts 5 are provided in the upper and lower stages, the ducts 5 merge at the rear of the chimney outer cylinder 1, and the duct 5 has a shape in which the flow cross-sectional area is reduced from the front to the rear.
【0012】 ダクト5後端となる煙突外筒1後面に空気吹出口6を設け、空気吹出口6を覆 って上方のみ開放する空気吹上ガイド8を突設する。An air blow-out port 6 is provided on the rear surface of the chimney outer cylinder 1 which is the rear end of the duct 5, and an air blow-up guide 8 which covers the air blow-out port 6 and is open only above is provided.
【0013】 この実施例において、航行中に生じる空気流は、空気取入口4からダクト5内 に吸引され、該空気流はダクト5内を前方から後方に向かって流通するにつれ、 ダクト5の断面積が絞られているため流速を増し、ダクト5後端の合流部を通過 後に、空気吹出口6から空気吹上ガイド8に沿って該空気流が上向きに吹出すよ うになる。該空気流は煙突内筒7から排出される排気ガスを上向きに押し上げ、 排気ガスが居住区に巻き込まれるのを防ぐ。In this embodiment, the air flow generated during navigation is sucked into the duct 5 from the air intake 4, and the air flow passes through the duct 5 from the front side to the rear side. Since the area is narrowed, the flow velocity is increased, and after passing through the merging portion at the rear end of the duct 5, the air flow is blown upward from the air outlet 6 along the air blowing guide 8. The air flow pushes the exhaust gas discharged from the chimney inner cylinder 7 upward and prevents the exhaust gas from being trapped in the living area.
【0014】[0014]
この考案は上述のとおり構成されているので、次に記載する効果を奏する。 また、高さ方向の制限が小さい煙突外筒の天板位置下方に空気取入口を設けて いるので、空気取入口の面積を広くとれ、多量の空気を取入れることができ、か つ、煙突外筒後面に空気吹出口を設け、排気ガスの吹出し圧が下降した位置での 空気の上方への吹出しを行うので、排気ガスの吹上げが効果的に行われ、排気ガ スが居住区に巻き込まれるのを防ぐ。 Since the present invention is configured as described above, it has the following effects. In addition, since the air intake is provided below the top plate position of the chimney outer cylinder, which has a small height restriction, the area of the air intake can be wide, and a large amount of air can be taken in. An air outlet is provided on the rear surface of the outer cylinder, and the air is blown upward at the position where the blowout pressure of the exhaust gas is lowered, so the exhaust gas is blown up effectively and the exhaust gas is placed in the living area. Prevent getting caught.
【図面の簡単な説明】[Brief description of drawings]
【図1】この考案に係る実施例の側面図を略示したもの
である。FIG. 1 is a schematic side view of an embodiment according to the present invention.
【図2】この考案に係る実施例の平面図を略示したもの
である。FIG. 2 is a schematic plan view of an embodiment according to the present invention.
1 船体上部構造物 2 煙突外筒 3 天板 4 空気取入口 5 ダクト 6 空気吹出口 7 煙突内筒 8 空気吹上ガイド 1 Hull upper structure 2 Chimney outer cylinder 3 Top plate 4 Air intake 5 Duct 6 Air outlet 7 Chimney inner cylinder 8 Air blow-up guide
Claims (1)
該煙突外筒の天板位置より下方の頂部前面に空気取入口
を設け、該空気取入口から該煙突外筒内に煙突内筒を内
在して両舷側に分岐する上下二段のダクトを設け、該ダ
クトは該煙突外筒後部で合流し、かつ、該ダクトは前方
から後方に向かって流通断面積を絞った形状とし、該ダ
クト後端となる該煙突外筒後面に空気吹出口を設け、該
空気吹出口を覆って上方のみ開放する空気吹上ガイドを
突設して、煙突からの排気ガスの吹出しを該空気の上方
への吹出しと共に排出させることを特徴とする舶用煙突
の煙害防止装置。1. An outer cylinder of a chimney fixed to a ship,
An air intake is provided on the front surface of the top of the chimney outer cylinder below the top plate position, and a two-stage upper and lower duct is provided from the air intake, in which the chimney inner cylinder is internally located and branches to both port sides. , The duct merges at the rear of the chimney outer cylinder, and the duct has a shape in which the flow cross-sectional area is narrowed from the front to the rear, and an air outlet is provided on the rear surface of the chimney outer cylinder which is the rear end of the duct. A smoke pollution control device for a marine chimney, characterized in that an air blow-up guide that covers only the air outlet and is opened only upward is provided so as to discharge the exhaust gas from the chimney together with the air upward. ..
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2052392U JPH0572697U (en) | 1992-03-04 | 1992-03-04 | Smoke prevention device for marine chimney |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2052392U JPH0572697U (en) | 1992-03-04 | 1992-03-04 | Smoke prevention device for marine chimney |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0572697U true JPH0572697U (en) | 1993-10-05 |
Family
ID=12029526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2052392U Pending JPH0572697U (en) | 1992-03-04 | 1992-03-04 | Smoke prevention device for marine chimney |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0572697U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101226024B1 (en) * | 2010-06-08 | 2013-01-24 | 삼성중공업 주식회사 | A vessel |
KR20200009854A (en) * | 2018-07-20 | 2020-01-30 | 주식회사 제이텍 | Funnel Structure of Ship |
KR20220125480A (en) * | 2021-03-05 | 2022-09-14 | 세호마린솔루션즈(주) | Funnel Structure of car carriers |
KR20220125481A (en) * | 2021-03-05 | 2022-09-14 | 세호마린솔루션즈(주) | Funnel Structure of car carriers |
-
1992
- 1992-03-04 JP JP2052392U patent/JPH0572697U/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101226024B1 (en) * | 2010-06-08 | 2013-01-24 | 삼성중공업 주식회사 | A vessel |
KR20200009854A (en) * | 2018-07-20 | 2020-01-30 | 주식회사 제이텍 | Funnel Structure of Ship |
KR20220125480A (en) * | 2021-03-05 | 2022-09-14 | 세호마린솔루션즈(주) | Funnel Structure of car carriers |
KR20220125481A (en) * | 2021-03-05 | 2022-09-14 | 세호마린솔루션즈(주) | Funnel Structure of car carriers |
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