JPH0248644Y2 - - Google Patents
Info
- Publication number
- JPH0248644Y2 JPH0248644Y2 JP1983139058U JP13905883U JPH0248644Y2 JP H0248644 Y2 JPH0248644 Y2 JP H0248644Y2 JP 1983139058 U JP1983139058 U JP 1983139058U JP 13905883 U JP13905883 U JP 13905883U JP H0248644 Y2 JPH0248644 Y2 JP H0248644Y2
- Authority
- JP
- Japan
- Prior art keywords
- silencer
- steam
- exhaust pipe
- core
- outer cylinder
- 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
Landscapes
- Pipe Accessories (AREA)
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】
本考案は火力発電所等のプラントのサイレンサ
に関するものである。[Detailed Description of the Invention] The present invention relates to a silencer for plants such as thermal power plants.
火力発電所、その他蒸気やドレンを捨てるタン
ク（フラツシユパイプ）を持つプラントにおい
て、その量が多ければ、タンク排気管の排気出口
にサイレンサを設けている。ただし、その蒸気や
ドレン量が多ければ多い程、排気管内に水滴を持
ち去られる量が多くなり、雨降り現象が発生す
る。また、過熱蒸気をタンクへ捨てる場合でも、
排気管内およびサイレンサ内での流速を落すため
にタンク内に冷却水を入れ、蒸気の比容積を小さ
くし、騒音を小さくする工夫をしているプラント
も多く、その冷却水がうまく混らずにサイレンサ
出口で雨降り現象を発生している。 In thermal power plants and other plants that have tanks (flush pipes) for discharging steam and condensate, silencers are installed at the exhaust outlet of the tank exhaust pipe if the amount is large. However, the greater the amount of steam or drain, the more water droplets are carried away into the exhaust pipe, causing a rain phenomenon. Also, even when discharging superheated steam into a tank,
Many plants put cooling water in a tank to reduce the flow velocity in the exhaust pipe and silencer, thereby reducing the specific volume of steam and reducing noise. A rain phenomenon is occurring at the silencer exit.
その対策例としては、排気管内にミストセパレ
ータを設けた例があるのみである。 The only countermeasure against this problem is to provide a mist separator inside the exhaust pipe.
特に最近のプラントでは、起動停止が頻繁とな
り、雨降り現象が多く見られるようになつた、な
お、蒸気やドレンを捨てるのは主として起動時と
停止時である。 Particularly in recent plants, startups and shutdowns have become more frequent, and rain phenomena have become more common. Note that steam and condensate are discarded mainly during startup and shutdown.
さらに、第１図により説明する。図中、矢印Ｓ
は蒸気、ｅは排水、Bdはボイラドレン（含蒸
気）、Tbはタービンドレン（含蒸気）を示す。 Further explanation will be given with reference to FIG. In the figure, arrow S
indicates steam, e indicates waste water, Bd indicates boiler drain (steam-containing), and Tb indicates turbine drain (steam-containing).
火力発電所等のプラントでは、起動時、特に多
量のドレン（含蒸気）を系外に捨てるが、その行
き先としてフラツシユパイプ（別名ブロータンク
とも言う）３の如きに捨てる水は、排水管４を通
り系外に捨てられる。蒸気は排気管２、サイレン
サ１を通り系外に捨てられる。 In plants such as thermal power plants, when starting up, a particularly large amount of condensate (containing steam) is disposed of outside the system, and the destination of the water is a drain pipe 4, such as a flush pipe (also known as a blow tank) 3. is discarded outside the system. The steam passes through an exhaust pipe 2 and a silencer 1 and is disposed of outside the system.
最近、DSS（毎日発停）のプラント運用化が進
められ、起動時間の短縮を計れば、プラントの系
外に捨てるドレン量は非常に多くなり、通常の大
きさのフラツシユパイプでは水と蒸気の安全分離
は不可能となり、排気管２、サイレンサ１を水滴
が通りサイレンサ１より出て、雨降り現象とな
る。 Recently, DSS (daily start/stop) plant operation has been promoted, and if the startup time is to be shortened, the amount of drain discharged outside the plant system will be extremely large. Safe separation becomes impossible, and water droplets pass through the exhaust pipe 2 and the silencer 1 and exit from the silencer 1, resulting in a rain phenomenon.
本考案はこのような従来例の不具合を解消せん
としてなされたもので、サイレンサに水滴取り装
置を設けることにより、低コスト増加で、排気管
からの雨降り現象を無くするようにしたものであ
る。 The present invention was developed to solve the problems of the conventional example, and by installing a water droplet collecting device on the silencer, it is possible to eliminate the phenomenon of rain falling from the exhaust pipe at a low cost.
以下、本考案の実施例について第２図を参照し
て詳述する。 Hereinafter, embodiments of the present invention will be described in detail with reference to FIG.
第２図において、符号１はサイレンサ、２は排
気管、５は多孔ノズル（内筒）、６は内筒内に設
けられた中子、７はサイレンサエレメント、８は
サイレンサ外筒、９はドレン抜きで、矢印ａはノ
ズル５よりの蒸気流速分布を示す。 In Fig. 2, numeral 1 is a silencer, 2 is an exhaust pipe, 5 is a porous nozzle (inner cylinder), 6 is a core provided in the inner cylinder, 7 is a silencer element, 8 is a silencer outer cylinder, and 9 is a drain. Without exception, arrow a indicates the steam flow velocity distribution from nozzle 5.
サイレンサ外筒８の直径が大きくなつている。
このため、サイレンサ外筒８内の蒸気の上昇流速
は排気管２内の蒸気流速に比べ非常に小さい。た
だし、サイレンサ外筒８内での蒸気上昇流速は、
多孔ノズル５の出口での蒸気流速分布によるもの
が大である。 The diameter of the silencer outer cylinder 8 is increased.
Therefore, the upward flow velocity of the steam within the silencer outer cylinder 8 is much smaller than the steam flow velocity within the exhaust pipe 2. However, the rising flow rate of steam inside the silencer outer cylinder 8 is:
This is largely due to the steam flow velocity distribution at the outlet of the porous nozzle 5.
故に、多孔ノズル５内に、下方に頂部がくるよ
うに円錐形の中子６を設けて、多孔ノズル５出口
での蒸気流速分布を一様にしてサイレンサ外筒８
内での蒸気上昇流速の一様化を計り、サイレンサ
外筒８の径を非常に大きくすることなく水適取り
を可能とする。 Therefore, a conical core 6 is provided in the porous nozzle 5 so that the top is located downward, so that the steam flow velocity distribution at the outlet of the porous nozzle 5 is made uniform and the silencer outer cylinder 8 is
By uniformizing the rising flow rate of steam within the silencer, it is possible to take in water without increasing the diameter of the silencer outer cylinder 8.
本考案のサイレンサを採用すると、排気管に大
きな水滴取り装置を設置することなく、配置的に
もコンパクトとなり、コストの低減を計ることが
でき、プラントサイレンサの雨降り防止対策が可
能となる。 By adopting the silencer of the present invention, there is no need to install a large water droplet collecting device in the exhaust pipe, the layout becomes compact, costs can be reduced, and it is possible to prevent rain from raining on the plant silencer.
第１図はサイレンサの系統図、第２図は本考案
のサイレンサの構成を示す略断面図である。
１……サイレンサ、２……排気管、５……多孔
ノズル、６……中子、７……サイレンサエレメン
ト、８……サイレンサ外筒、９……ドレン抜き。
FIG. 1 is a system diagram of a silencer, and FIG. 2 is a schematic sectional view showing the structure of the silencer of the present invention. 1... Silencer, 2... Exhaust pipe, 5... Porous nozzle, 6... Core, 7... Silencer element, 8... Silencer outer cylinder, 9... Drain drain.
Claims (1)
方に向けて円錐形の中子を内設するとともに該中
子の上流部位にガス噴出用の多孔ノズルを設け、
上記中子、多孔ノズル及びサイレンサエレメント
を大径の外筒内に収容したことを特徴とするサイ
レンサ。 A conical core is installed inside the top opening in the silencer of the exhaust pipe with the top facing downward, and a porous nozzle for blowing out gas is provided at the upstream portion of the core,
A silencer characterized in that the core, the porous nozzle, and the silencer element are housed in a large-diameter outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13905883U JPS6052312U (en) | 1983-09-09 | 1983-09-09 | Silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13905883U JPS6052312U (en) | 1983-09-09 | 1983-09-09 | Silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6052312U JPS6052312U (en) | 1985-04-12 |
| JPH0248644Y2 true JPH0248644Y2 (en) | 1990-12-20 |
Family
ID=30311803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13905883U Granted JPS6052312U (en) | 1983-09-09 | 1983-09-09 | Silencer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6052312U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8006489B2 (en) * | 2006-09-07 | 2011-08-30 | Volvo Group North America, Llc | Exhaust diffuser for a vocational truck |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4812406U (en) * | 1971-06-29 | 1973-02-12 | ||
| JPS50133302A (en) * | 1974-04-10 | 1975-10-22 |
-
1983
- 1983-09-09 JP JP13905883U patent/JPS6052312U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6052312U (en) | 1985-04-12 |
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