JPH0623206A - Exhauster - Google Patents
ExhausterInfo
- Publication number
- JPH0623206A JPH0623206A JP20442792A JP20442792A JPH0623206A JP H0623206 A JPH0623206 A JP H0623206A JP 20442792 A JP20442792 A JP 20442792A JP 20442792 A JP20442792 A JP 20442792A JP H0623206 A JPH0623206 A JP H0623206A
- Authority
- JP
- Japan
- Prior art keywords
- container
- pipe
- vapor
- steam
- vessel
- 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.)
- Withdrawn
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、火力・原子力発電プラ
ントなどに適用される排気装置に係り、更に詳細には、
気液分離装置で分離された蒸気を、蒸気排出管から大気
中に排出する際に、水蒸気の放出を防止するようにした
排気装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust system applied to a thermal power / nuclear power plant and the like.
The present invention relates to an exhaust device that prevents the release of water vapor when the steam separated by a gas-liquid separator is discharged into the atmosphere from a steam discharge pipe.
【０００２】[0002]
【従来の技術】火力・原子力発電プラントでは、起動時
に、塩類等を多く含有する水質の悪い高温・高圧ドレン
を系外へ排出するようにしている。ただし、この高温・
高圧ドレンを、そのまま大気中に排出すると、排水ピッ
トで多量のフラッシュ蒸気が発生して、それがその周辺
に充満して降雨現象を引き起こすなどの環境を悪化させ
る恐れがある。そのため従来は、高温・高圧ドレンを一
旦気液分離装置に回収して、フラッシュ蒸気とドレンと
を十分分離した上で、フラッシュ蒸気を蒸気排出管から
大気中へ拡散させ、ドレンを排水ピットへ排出するよう
にしている。2. Description of the Related Art In a thermal power / nuclear power plant, when starting, a high temperature / high pressure drain containing a lot of salts and the like and having poor water quality is discharged to the outside of the system. However, this high temperature
If the high-pressure drain is discharged into the atmosphere as it is, a large amount of flash vapor is generated in the drainage pit, which may fill the surrounding area and cause a rain phenomenon, which may worsen the environment. Therefore, in the past, high-temperature / high-pressure drain was once collected in a gas-liquid separator, the flash vapor and drain were sufficiently separated, and then the flash vapor was diffused into the atmosphere from the vapor discharge pipe, and the drain was discharged to the drainage pit. I am trying to do it.
【０００３】また、気液分離装置から水滴が巻き上げら
れて大気中へ排出されることもあるので、これを防止す
るために、従来は、気液分離装置内に多孔板や金網のよ
うな液滴捕集手段を設けて、ベント管に流入する液滴を
減少させたり、又は気液分離装置から蒸気排出管に至る
途中に、水滴フィルタを設けるとともに、この水滴フィ
ルタへ向けて高温ガスを噴射して水滴を蒸発させる等の
手段を講じている。Further, since water droplets may be rolled up from the gas-liquid separator and discharged into the atmosphere, in order to prevent this, conventionally, a liquid such as a perforated plate or a wire mesh is provided in the gas-liquid separator. A drop catcher is provided to reduce the amount of drops that flow into the vent pipe, or a water drop filter is provided along the way from the gas-liquid separator to the vapor discharge pipe, and a high temperature gas is jetted toward this water drop filter. Then, measures such as evaporating water drops are taken.
【０００４】[0004]
【発明が解決しようとする課題】ところで、近年の発電
プラントの大容量化に伴って、系外へ排出されるドレン
は、より高温・高圧・多量となっており、蒸気排出管か
ら排出されるフラッシュ蒸気も多量となっている。その
ため、従来の液滴捕集手段や水滴を蒸発させる手段を設
けるだけでは十分ではなく、蒸気の排出量を極力低減さ
せることが必要であった。また、気液分離装置の大きさ
も、設置スペースの制約から気液分離のために必要な寸
法が十分確保されていないケースもあり、この場合、気
液分離タンク内の蒸気流速が大きくなって、水滴が十分
落下分離されないうちに、蒸気流によって蒸気排出管内
へ巻き上げられてしまい、水滴が排気口から放出されて
降雨現象を引き起こすという問題があった。By the way, with the recent increase in the capacity of power plants, the drain discharged outside the system becomes higher in temperature, pressure, and quantity, and is discharged from the steam discharge pipe. The amount of flash steam is also large. Therefore, it is not enough to provide the conventional means for collecting the droplets and the means for evaporating the water droplets, and it is necessary to reduce the discharge amount of the vapor as much as possible. In addition, the size of the gas-liquid separation device may not be sufficiently secured for the gas-liquid separation due to the restriction of the installation space.In this case, the vapor flow velocity in the gas-liquid separation tank becomes large, There was a problem that before the water drops were sufficiently dropped and separated, they were rolled up by the steam flow into the steam discharge pipe, and the water drops were discharged from the exhaust port to cause a rain phenomenon.
【０００５】本発明は、このような従来技術の課題を解
決するためになされたもので、気液分離装置で分離さ
れ、大気中へ排出される蒸気の排出量を低減させるため
の排気装置を提供することを目的とする。The present invention has been made in order to solve the problems of the prior art as described above, and provides an exhaust device for reducing the amount of vapor separated into a gas and discharged into the atmosphere. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明に係る排気装置は、気液分離装置で分離さ
れた蒸気が導入される容器と、前記気液分離装置に連結
され、先端部が前記容器内に少なくとも容器の高さの半
分まで挿入されている蒸気導入管と、前記容器内の上方
に設けられ、蒸気導入管から容器内に導入された蒸気を
冷却するための冷却水をスプレイ噴射するノズルと、こ
のノズルから噴射された冷却水や凝縮水を前記容器の底
部から排出する排水管と、この排水管の取付け位置より
も上方の前記容器の側面下部に設けた排気口に一端が連
結され、他端が大気中に開口する排気管と、前記排気口
の一部を覆うように前記容器内に取付けられた仕切り板
とを備えてなる。In order to solve the above problems, an exhaust device according to the present invention is connected to a container into which vapor separated by a gas-liquid separator is introduced and the gas-liquid separator. , A steam introducing pipe whose tip is inserted into the container to at least half the height of the container, and which is provided above the container and for cooling the steam introduced into the container from the steam introducing pipe. A nozzle for spray-injecting cooling water, a drain pipe for discharging cooling water and condensed water jetted from this nozzle from the bottom of the container, and a lower side surface of the container above the mounting position of the drain pipe are provided. An exhaust pipe having one end connected to the exhaust port and the other end opening to the atmosphere, and a partition plate mounted in the container so as to cover a part of the exhaust port are provided.
【０００７】[0007]
【作 用】上記の手段によれば、気液分離装置から蒸気
導入管を通して容器に導入された蒸気は、スプレイ噴射
される冷却水によって冷却されて凝縮し、冷却水ととも
に容器の底部から排出される。また、凝縮されずに残っ
た蒸気は、容器の側面下部に設けた排気口を経て排気管
を通り大気中へ排出されるが、排気口の一部を覆うよう
に容器内に取付けられた仕切り板が、スプレイ噴射され
た冷却水をブロックするので、水滴を含む蒸気の排出量
を低減させることができる。[Operation] According to the above means, the steam introduced from the gas-liquid separation device into the container through the steam introducing pipe is cooled by the sprayed cooling water and condensed, and is discharged from the bottom of the container together with the cooling water. It In addition, the vapor remaining without being condensed is discharged into the atmosphere through the exhaust pipe provided at the lower part of the side surface of the container, but the partition installed inside the container covers part of the exhaust port. Since the plate blocks the cooling water sprayed, the discharge amount of steam including water droplets can be reduced.
【０００８】[0008]
【実施例】以下、図１および図２を参照して本発明の一
実施例について詳細に説明する。図１は本発明に係る排
気装置の一実施例を、一部を断面にして示す側面図、図
２は図１の排気装置を気液分離装置に組合わせた状態を
示す構成図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. FIG. 1 is a side view showing an embodiment of an exhaust device according to the present invention in a partial cross section, and FIG. 2 is a configuration diagram showing a state in which the exhaust device of FIG. 1 is combined with a gas-liquid separation device.
【０００９】先ず図２に示すように、タービンなどで仕
事をした高温・高圧のドレンは、気液分離装置１にドレ
ン流入管２を通して回収され、ここで、フラッシュ蒸気
とドレンとに分離される。そして、ドレンはドレン排出
管３を通して排水ピット４へ排出され、一方フラッシュ
蒸気は蒸気導入管５を通して、本発明に係る排気装置を
構成する容器６に導入される。First, as shown in FIG. 2, a high temperature and high pressure drain that has worked in a turbine or the like is recovered through a drain inflow pipe 2 in a gas-liquid separator 1 and is separated into flash steam and drain here. . Then, the drain is discharged through the drain discharge pipe 3 to the drainage pit 4, while the flash steam is introduced through the steam introduction pipe 5 into the container 6 that constitutes the exhaust device according to the present invention.
【００１０】この容器６の詳細は図１に示されている。
すなわち、容器６は底部が下方へ向けて湾曲したお椀形
をしたもので、底部中央から蒸気導入管５が容器６内に
挿入されるようにして設けられている。この蒸気導入管
５の先端は容器６の高さの半分程度まで達しており、好
ましくは符号Ｈで示すように容器６の高さの２／３程度
のところに位置させるのがよい。また、容器６の内径Ｄ
は、蒸気導入管５の内径ｄの約３倍（Ｄ＝３ｄ程度）か
それ以上とするのが好ましい。そして、容器６内の上方
部には、冷却水をスプレイ噴射するノズル７が設けられ
ており、このノズル７は冷却水管８に連結されている。Details of this container 6 are shown in FIG.
That is, the container 6 has a bowl shape with a bottom curved downward, and the steam introduction pipe 5 is provided so as to be inserted into the container 6 from the center of the bottom. The tip of the vapor introducing pipe 5 reaches about half the height of the container 6, and it is preferable to locate it at about ⅔ of the height of the container 6 as indicated by the symbol H. Also, the inner diameter D of the container 6
Is preferably about 3 times the inner diameter d of the steam introducing pipe 5 (about D = 3d) or more. A nozzle 7 for spray-injecting cooling water is provided in the upper part of the container 6, and the nozzle 7 is connected to a cooling water pipe 8.
【００１１】さらに、容器６の底部の最も低い位置に
は、排水口９が形成され、ここに排水管１０が取付けら
れている。排水管１０の先端は、図２に示すように、排
水ピット４に達している。また、この排水管１０の取付
け位置よりも上方に位置するように、容器６の側面下部
に排気口１１が設けられ、この排気口１１に排気管１２
が連結されている。排気管１２は容器６の上方へ伸び、
先端は高所に位置して大気に対し開口している。そし
て、排気口１１の一部を覆うように容器６内に仕切り板
１３が取付けられている。Further, a drain port 9 is formed at the lowest position of the bottom of the container 6, and a drain pipe 10 is attached thereto. The tip of the drain pipe 10 reaches the drain pit 4, as shown in FIG. Further, an exhaust port 11 is provided in a lower portion of a side surface of the container 6 so as to be located above a mounting position of the drain pipe 10, and the exhaust pipe 12 is provided in the exhaust port 11.
Are connected. The exhaust pipe 12 extends above the container 6,
The tip is located at a high place and is open to the atmosphere. A partition plate 13 is attached inside the container 6 so as to cover a part of the exhaust port 11.
【００１２】なお、本実施例に示す如く、排水管１０お
よび排気管１２をそれぞれ容器６から複数本導出する場
合には、先の方で集合管とする。When a plurality of drain pipes 10 and exhaust pipes 12 are led out from the container 6 as shown in this embodiment, the former pipe is used as a collecting pipe.
【００１３】次に、作用について説明する。蒸気導入管
５の先端が容器６の半分以上の高さの位置にあるととも
に、蒸気導入管５の開口面が容器６の天面で覆われた状
態にあり、排気口１１が容器６の下方に設けられている
ために、蒸気導入管５を通して容器６内に流入した気液
分離装置１からのフラッシュ蒸気は、容器６の上部から
下部へ向けて流動する。そして、容器６内の上部のノズ
ル７から冷却水をスプレイ噴射すると、冷却水の液滴流
は、重力によって容器６の上部から下部へ落下する。す
なわち、冷却水の液滴流は、流動しているフラッシュ蒸
気に沿って下方へ向けて流動することになる。そのた
め、蒸気は冷却され、凝縮しながら容器６の底部に達
し、容器６の底部に冷却水と凝縮水とが貯溜する。Next, the operation will be described. The tip of the steam introducing pipe 5 is located at a position higher than half the height of the container 6, the opening surface of the steam introducing pipe 5 is covered with the top surface of the container 6, and the exhaust port 11 is located below the container 6. The flash vapor from the gas-liquid separation device 1 flowing into the container 6 through the vapor introducing pipe 5 flows from the upper part to the lower part of the container 6 because it is provided in the. Then, when the cooling water is spray-injected from the nozzle 7 in the upper part of the container 6, the droplet flow of the cooling water drops from the upper part to the lower part of the container 6 by gravity. That is, the droplet stream of the cooling water flows downward along the flowing flash steam. Therefore, the steam is cooled and reaches the bottom of the container 6 while condensing, and the cooling water and the condensed water are stored in the bottom of the container 6.
【００１４】なお、この容器６の内部を流動する蒸気の
流速は、容器６の内径Ｄを大きくするほど、すなわち蒸
気の通過断面積を大きくするほど小さくなり、蒸気の流
速が小さいほど蒸気の凝縮量が増える。従って、容器６
の内径Ｄはできるだけ大きくすることが望ましい。本実
施例では、前述した如く、容器６の内径Ｄは、蒸気導入
管５の内径ｄの約３倍（Ｄ＝３ｄ程度）としており、容
器内部での蒸気の流速は、蒸気導入管５内での流速の１
／８倍程度となっている。また、容器内の蒸気の流速、
冷却水の導入量、スプレイ噴射による液滴径などは、全
排出蒸気量の内どれだけを凝縮するかに応じ、凝縮熱伝
達の理論計算によって決定されるべきものなので、これ
らについては本実施例では特に触れないものとする。The flow velocity of the steam flowing inside the container 6 becomes smaller as the inner diameter D of the container 6 is made larger, that is, as the cross-sectional area of passage of the steam is made larger, and as the flow velocity of the steam is smaller, the steam is condensed. The amount increases. Therefore, the container 6
It is desirable to make the inner diameter D of the as large as possible. In the present embodiment, as described above, the inner diameter D of the container 6 is about 3 times the inner diameter d of the steam introducing pipe 5 (about D = 3d), and the flow velocity of the steam inside the container is within the steam introducing pipe 5. Of the flow velocity at 1
/ 8 times. Also, the flow rate of steam in the container,
The introduction amount of cooling water, the droplet diameter by spray injection, etc. should be determined by the theoretical calculation of condensation heat transfer depending on how much of the total exhaust vapor amount is condensed. Let's not touch it.
【００１５】さて、容器６の底部は下方へ向けて凸とな
るように湾曲したお椀形に形成されていて、その最低部
に排水口９が形成されているので、貯溜した冷却水と凝
縮水とは、排水口９から排水管１０を通して速やかに排
出される。そのため、貯溜した冷却水や凝縮水が、容器
６内の蒸気流によって巻き上げられることが抑制され
る。一方、容器６の上部から下部へ向けて流動する間に
凝縮されずに残った蒸気は、容器６の側面下部に設けた
排気口１１から排気管１２に導出され、その先端の開口
から大気中へ排出される。このとき、排気口１１の一部
を覆うように取り付けられた仕切り板１３によって、ス
プレイ噴射がブロックされるので、排気口１１から導出
される蒸気流に液滴流が巻き上げられるのが防止され
る。Now, since the bottom of the container 6 is formed in a bowl shape curved so as to be convex downward, and the drain port 9 is formed at the lowest part thereof, the stored cooling water and condensed water are collected. Is quickly discharged from the drainage port 9 through the drainage pipe 10. Therefore, the stored cooling water and condensed water are suppressed from being rolled up by the vapor flow in the container 6. On the other hand, the vapor left uncondensed while flowing from the upper part to the lower part of the container 6 is led out to the exhaust pipe 12 from the exhaust port 11 provided at the lower part of the side surface of the container 6 to the atmosphere from the opening at the tip thereof. Is discharged to. At this time, since the spray injection is blocked by the partition plate 13 attached so as to cover a part of the exhaust port 11, it is possible to prevent the vapor stream discharged from the exhaust port 11 from being entrained with a droplet flow. .
【００１６】[0016]
【発明の効果】以上詳述したように、本発明に係る排気
装置を大容量の発電プラントなどに設置することによ
り、大気中への蒸気の排出量を軽減でき、従って降雨現
象を抑制することができるという、極めて顕著な効果が
得られる。As described in detail above, by installing the exhaust system according to the present invention in a large-capacity power plant or the like, it is possible to reduce the amount of steam discharged into the atmosphere and thus suppress the rainfall phenomenon. It is possible to obtain a very remarkable effect.
【図１】本発明に係る排気装置の一実施例を、一部を断
面にして示す側面図である。FIG. 1 is a side view showing an embodiment of an exhaust device according to the present invention with a part thereof shown in section.
【図２】図１の排気装置を気液分離装置に組合わせた状
態を示す構成図である。FIG. 2 is a configuration diagram showing a state in which the exhaust device of FIG. 1 is combined with a gas-liquid separation device.
１ 気液分離装置 ５ 蒸気導入管 ６ 容器 ７ ノズル １０ 排水管 １１ 排気口 １２ 排気管 １３ 仕切り板 1 Gas-Liquid Separation Device 5 Vapor Inlet Pipe 6 Container 7 Nozzle 10 Drain Pipe 11 Exhaust Port 12 Exhaust Pipe 13 Partition Plate
Claims (1)
る容器と、前記気液分離装置に連結され、先端部が前記
容器内に少なくとも容器の高さの半分まで挿入されてい
る蒸気導入管と、前記容器内の上方に設けられ、蒸気導
入管から容器内に導入された蒸気を冷却するための冷却
水をスプレイ噴射するノズルと、このノズルから噴射さ
れた冷却水や凝縮水を前記容器の底部から排出する排水
管と、この排水管の取付け位置よりも上方の前記容器の
側面下部に設けた排気口に一端が連結され、他端が大気
中に開口する排気管と、前記排気口の一部を覆うように
前記容器内に取付けられた仕切り板とを備えたことを特
徴とする排気装置。1. A container into which vapor separated by a gas-liquid separator is introduced, and a vapor which is connected to the vapor-liquid separator and whose tip is inserted into the container to at least half the height of the container. Introducing pipe, a nozzle provided above the container, which spray-injects cooling water for cooling the steam introduced into the container from the steam introducing pipe, and the cooling water or condensed water injected from this nozzle. A drain pipe for discharging from the bottom of the container, an exhaust pipe having one end connected to an exhaust port provided at a lower portion of a side surface of the container above a mounting position of the drain pipe, and the other end opening to the atmosphere, An exhaust device, comprising: a partition plate mounted in the container so as to cover a part of the exhaust port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20442792A JPH0623206A (en) | 1992-07-08 | 1992-07-08 | Exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20442792A JPH0623206A (en) | 1992-07-08 | 1992-07-08 | Exhauster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0623206A true JPH0623206A (en) | 1994-02-01 |
Family
ID=16490363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20442792A Withdrawn JPH0623206A (en) | 1992-07-08 | 1992-07-08 | Exhauster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623206A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998026448A3 (en) * | 1996-11-25 | 1998-10-15 | Spectrian Inc | Rf power transistor having improved stability and gain |
| CN103143187A (en) * | 2011-12-06 | 2013-06-12 | 洛阳骏腾能源科技有限公司 | Gas-liquid two-stage separator for exhaust system of waste industrial solid organic material pelletizer |
| CN110102078A (en) * | 2019-05-31 | 2019-08-09 | 宁波乐惠国际工程装备股份有限公司 | Installation for steam condensation and waste gas processing method |
-
1992
- 1992-07-08 JP JP20442792A patent/JPH0623206A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998026448A3 (en) * | 1996-11-25 | 1998-10-15 | Spectrian Inc | Rf power transistor having improved stability and gain |
| CN103143187A (en) * | 2011-12-06 | 2013-06-12 | 洛阳骏腾能源科技有限公司 | Gas-liquid two-stage separator for exhaust system of waste industrial solid organic material pelletizer |
| CN110102078A (en) * | 2019-05-31 | 2019-08-09 | 宁波乐惠国际工程装备股份有限公司 | Installation for steam condensation and waste gas processing method |
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