JPH05141612A - Deaerator - Google Patents

Deaerator

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Publication number
JPH05141612A
JPH05141612A JP30514991A JP30514991A JPH05141612A JP H05141612 A JPH05141612 A JP H05141612A JP 30514991 A JP30514991 A JP 30514991A JP 30514991 A JP30514991 A JP 30514991A JP H05141612 A JPH05141612 A JP H05141612A
Authority
JP
Japan
Prior art keywords
water
pipe
steam
storage tank
tank
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.)
Granted
Application number
JP30514991A
Other languages
Japanese (ja)
Other versions
JP2867768B2 (en
Inventor
Hiranari Kudou
飛良生 工藤
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP30514991A priority Critical patent/JP2867768B2/en
Publication of JPH05141612A publication Critical patent/JPH05141612A/en
Application granted granted Critical
Publication of JP2867768B2 publication Critical patent/JP2867768B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Degasification And Air Bubble Elimination (AREA)

Abstract

PURPOSE:To equalize the pressure in a deaerator and a water storage tank to be connected to a bleeder steam pipe at the time of shutting OFF a load by providing a pressure-equalizing pipe for connecting the top of the tank to the pipe through a check valve. CONSTITUTION:A pressure-equalizing pipe 29 for connecting the top of a water storage tank 3 to a bleeder steam pipe 16 through a check valve 28 is provided, and a steam section above a water level 25 in the tank 3 is connected to the pipe 16. Thus, flash steam of storage water in the tank 3 enhanced under pressure than that in a deaeration tower 2 flows in the equalizing pipe into the tower through the steam pipe at the time of shutting OFF a load, thereby early sufficiently equalizing the pressures in the tower and the tank with flash steam to be introduced into the tower through a steam pipe 5.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、水の脱気、特にボイラ
に送水する水をタービンからの抽気蒸気により加熱して
脱気する脱気器に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deaerator for deaerating water, and in particular for dewatering by heating extracted water from a turbine with water extracted from a turbine.

【0002】[0002]

【従来の技術】火力発電所等に備えられるボイラに送水
される水は、その中に溶存する酸素を取除く、すなわち
脱気するために脱気器に送水される。この種の脱気器と
して図2に示すものが知られている。
2. Description of the Related Art Water sent to a boiler provided in a thermal power plant or the like is sent to a deaerator to remove oxygen dissolved therein, that is, to deaerate. As this type of deaerator, the one shown in FIG. 2 is known.

【0003】図2において、脱気器1は脱気塔2とこの
脱気塔2の下位に配設される貯水タンク3とからなり、
脱気塔2と貯水タンク3とは脱気塔2で生じた脱気水を
降水させて貯水タンク3に導く降水管4と貯水タンク3
で生じた蒸気を脱気塔2に導く蒸気管5とにより接続さ
れる。
In FIG. 2, a deaerator 1 comprises a deaerator 2 and a water storage tank 3 arranged below the deaerator 2,
The degassing tower 2 and the water storage tank 3 have a precipitation pipe 4 and a water storage tank 3 that lead the degassed water generated in the degassing tower 2 to the water storage tank 3 by precipitation.
The steam generated in 1 is connected to the degassing tower 2 by a steam pipe 5.

【0004】脱気塔2において、ケーシング6の上方に
は多孔底板7を有し、ケーシング6を貫通する水供給管
8を経て蒸気タービンの復水系統から供給される水を貯
留する貯水ケース9が設けられている。またケーシング
6内の貯水ケース9の下方に脱気トレイ10が設けら
れ、さらに脱気トレイ10の下方には貯水ケース9から
脱気トレイ10を経て落下する水を集水する集水管11
と、この集水管11で集められた水を貯留して沸騰させ
る煮沸槽12が設けられている。なお13は集水管11
を貫通して蒸気を上方に導く蒸気案内管である。
In the deaeration tower 2, a water storage case 9 having a perforated bottom plate 7 above the casing 6 and storing water supplied from a condensing system of a steam turbine via a water supply pipe 8 penetrating the casing 6. Is provided. Further, a deaeration tray 10 is provided below the water storage case 9 in the casing 6, and a water collecting pipe 11 for collecting water falling from the water storage case 9 through the deaeration tray 10 below the deaeration tray 10.
And, a boiling tank 12 for storing and boiling the water collected by the water collecting pipe 11 is provided. 13 is a water collecting pipe 11
It is a steam guide tube that penetrates through and guides steam upward.

【0005】煮沸槽12にはタービンからの抽気蒸気を
噴射する蒸気噴射管14が内蔵され、この蒸気噴射管1
4は、ケーシング6を貫通して逆止弁15を備え、ター
ビンからの抽気蒸気が流れる抽気蒸気管16に接続され
ている。
The boiling tank 12 has a built-in steam injection pipe 14 for injecting extracted steam from the turbine.
Reference numeral 4 is provided with a check valve 15 penetrating the casing 6 and connected to an extraction steam pipe 16 through which extraction steam from the turbine flows.

【0006】集水管11と煮沸槽12とを貫通して蒸気
管5に連通する蒸気案内管17が設けられ、この蒸気案
内管17は貯水タンク3内で生じた蒸気を蒸気管5を経
てケーシング6内の上部に導く。
A steam guide pipe 17 is provided which penetrates the water collecting pipe 11 and the boiling tank 12 and communicates with the steam pipe 5. The steam guide pipe 17 allows the steam generated in the water storage tank 3 to pass through the steam pipe 5 and a casing. Lead to the upper part in 6.

【0007】貯水タンク3内には降水管4に接続され、
脱気塔2からの脱気水を貯水タンク3内の貯水の下部に
導く脱気水導入管20が設けられている。また抽気蒸気
を貯水タンク3内の貯水の下部に噴射するために、抽気
蒸気管16から分岐し、貯水タンク3のケーシングを貫
通して蒸気噴射口を備えた加熱用蒸気噴射管21が設け
られている。
In the water storage tank 3, connected to the downcomer pipe 4,
A degassed water introduction pipe 20 that guides degassed water from the degassing tower 2 to a lower portion of the stored water in the water storage tank 3 is provided. Further, in order to inject the extracted steam to the lower portion of the stored water in the water storage tank 3, a heating steam injection pipe 21 that is branched from the extraction steam pipe 16 and penetrates the casing of the water storage tank 3 and has a steam injection port is provided. ing.

【0008】貯水タンク3の底部には貯水タンク3内の
脱気水の貯水を送水する送水管23が設けられている。
At the bottom of the water storage tank 3, there is provided a water supply pipe 23 for sending the stored deaerated water in the water storage tank 3.

【0009】なお、脱気塔2のケーシング6の上部には
ベント管24が設けられており、脱気したガスを外部に
排出する。
A vent pipe 24 is provided above the casing 6 of the deaeration tower 2 to discharge the deaerated gas to the outside.

【0010】このような構成により、復水系統から水供
給管8を経て貯水ケース9に供給された水は貯水ケース
9に貯留される。そして貯留された水は多孔底板7から
水柱をなして落下し、脱気トレイ10により散水され、
散水された水は集水管11を経て煮沸槽12に貯留され
る。
With this structure, the water supplied from the condensate system to the water storage case 9 through the water supply pipe 8 is stored in the water storage case 9. The stored water falls from the perforated bottom plate 7 as a water column, and is sprinkled by the degassing tray 10.
The sprinkled water is stored in the boiling tank 12 via the water collecting pipe 11.

【0011】一方、タービンからの抽気蒸気は抽気蒸気
管16を経て煮沸槽12に供給され、この蒸気により煮
沸槽12に貯留された水を沸騰させて蒸気を発生する。
この蒸気は上方に流れ、多孔底板7から落下し、脱気ト
レイ10により散水される水を加熱して水中に溶存する
酸素を気化して脱気する。
On the other hand, the extracted steam from the turbine is supplied to the boiling tank 12 through the extracted steam pipe 16, and the steam boils the water stored in the boiling tank 12 to generate steam.
This steam flows upward, falls from the perforated bottom plate 7, and heats the water sprinkled by the degassing tray 10 to vaporize oxygen dissolved in the water and degas it.

【0012】また、抽気蒸気管16から分岐した蒸気噴
射管21に流入した抽気蒸気は蒸気噴射管21の蒸気噴
射口から噴射され、貯水タンク3内に貯留された水を加
熱する。なおこの際生じる蒸気は蒸気管5を経て脱気塔
2のケーシング6内に流入して上方に流れ、散水された
水により冷却されて水となって落下し、脱気される。
The extracted steam that has flowed into the steam injection pipe 21 branched from the extraction steam pipe 16 is injected from the steam injection port of the steam injection pipe 21 and heats the water stored in the water storage tank 3. The steam generated at this time flows through the steam pipe 5 into the casing 6 of the degassing tower 2, flows upward, is cooled by the sprinkled water, falls into water, and is deaerated.

【0013】なお、脱気されたガスは随伴蒸気とともに
ベント管24から外部に排出される。
The degassed gas is discharged from the vent pipe 24 to the outside together with the accompanying steam.

【0014】上記のようにして脱気された水は煮沸槽1
2に貯留され、前述のように沸騰するとともに、煮沸槽
12から溢れた水は煮沸槽12とケーシング6との間を
流れて降水管4から脱気水導入管20を経て貯水タンク
3に流入して貯留され、送水管23から水位25に水位
制御されて外部に送出される。
The water degassed as described above is used in the boiling tank 1
The water stored in No. 2 and boils as described above, and the water overflowing from the boiling tank 12 flows between the boiling tank 12 and the casing 6 and flows into the water storage tank 3 from the downcomer pipe 4 through the degassed water introduction pipe 20. The water is then stored, and the water level is controlled from the water supply pipe 23 to the water level 25 and sent out.

【0015】ところで蒸気タービンの負荷遮断時、後述
する理由により貯水タンク3の貯水の圧力が脱気塔2内
の圧力より高くなるので、貯水タンク3の貯水が脱気塔
2に連通する抽気蒸気管16に逆流する。このため抽気
蒸気管16に逆止弁15を設け、この逆止弁15により
逆流する貯水がタービン内に流入するのを防止してい
る。なお、貯水がタービン内に流入するとタービン翼の
エロージョン等のトラブルを起こす恐れがある。
When the load of the steam turbine is cut off, the pressure of the stored water in the water storage tank 3 becomes higher than the pressure in the degassing tower 2 for the reason described below, so that the stored water in the water storage tank 3 communicates with the degassing tower 2. Backflow into tube 16. For this reason, a check valve 15 is provided in the extraction steam pipe 16, and the check valve 15 prevents the stored water flowing backward from flowing into the turbine. If the stored water flows into the turbine, it may cause trouble such as erosion of the turbine blade.

【0016】[0016]

【発明が解決しようとする課題】上記の脱気塔2と貯水
タンク3とからなる脱気器1では蒸気タービンの負荷が
遮断されたときにはタービンからの抽気蒸気の供給が停
止される。しかし、脱気塔には復水系統から負荷遮断に
関係なく給水され続けられる。
In the deaerator 1 consisting of the deaerator 2 and the water storage tank 3 described above, the supply of the extraction steam from the turbine is stopped when the load on the steam turbine is cut off. However, the degassing tower will continue to be supplied with water from the condensate system regardless of load shedding.

【0017】このため、脱気塔2内は供給される水によ
り脱気塔2内の蒸気が冷却凝縮されて圧力が急激に低下
するが、貯水タンク3内の圧力は、貯留される水が大量
であるため温度が急激に下らず、このため脱気塔2内の
低下した圧力に追従できず、脱気塔2内の圧力より高
い。
Therefore, in the deaerator 2, the water supplied cools and condenses the vapor in the deaerator 2 and the pressure drops sharply. Since the amount is large, the temperature does not drop sharply, so that the reduced pressure in the degassing tower 2 cannot be followed, and the pressure is higher than the pressure in the degassing tower 2.

【0018】したがって、タービンの負荷遮断時、圧力
の高い貯水タンク3の貯水のフラッシュ蒸気が蒸気管5
を経て脱気塔2内に流入して脱気塔2内と貯水タンク3
内での均圧化が行なわれるが、この均圧化は不十分なの
で、圧力の高い貯水タンク3内の貯水が脱気水導入管2
0を経て脱気塔2内に逆流し、また蒸気噴射管21を経
て脱気塔2に連通する抽気蒸気管16に逆流する。
Therefore, when the load of the turbine is cut off, the flash steam of the stored water in the water storage tank 3 having a high pressure is transferred to the steam pipe 5.
Flow into the deaeration tower 2 and the water tank 3
Although pressure equalization is performed in the inside, this pressure equalization is insufficient, so that the water stored in the water storage tank 3 with high pressure is degassed water introduction pipe 2
It flows back to the inside of the degassing tower 2 via 0, and also to the extraction steam pipe 16 communicating with the degassing tower 2 via the steam injection pipe 21.

【0019】上記の貯水タンク3内の貯水が脱気塔2内
に逆流すると、逆流する貯水の流入衝撃により脱気塔2
内の煮沸槽12,集水管11,脱気トレイ10等の内蔵
品を破損するという危険性がある。
When the stored water in the water storage tank 3 flows back into the degassing tower 2, the degassing tower 2 is caused by the impact of the flowing back stored water.
There is a risk of damaging internal components such as the boiling tank 12, the water collection pipe 11, the degassing tray 10 and the like.

【0020】また、抽気蒸気管16には貯水タンク3の
貯水が前述のように逆流することを考慮してタービンに
流入しないように逆止弁15を設けている。
Further, the extraction steam pipe 16 is provided with a check valve 15 so that the stored water in the water storage tank 3 does not flow into the turbine in consideration of the reverse flow as described above.

【0021】したがってタービンの負荷遮断時、より早
く十分に脱気塔2内の圧力と貯水タンク3内の圧力とを
均圧化して貯水タンク3内の貯水を脱気塔2内及び抽気
蒸気管16内に逆流させないことが要望されている。
Therefore, when the load on the turbine is cut off, the pressure in the deaeration tower 2 and the pressure in the water storage tank 3 are equalized more quickly and the water in the water storage tank 3 is stored in the deaeration tower 2 and the extraction steam pipe. No backflow into the 16 is desired.

【0022】本発明の目的は、負荷遮断時、脱気塔への
タービンからの抽気蒸気の供給が停止しても、抽気蒸気
管に接続する脱気塔内と貯水タンク内とを均圧にするこ
とのできる脱気器を提供することである。
An object of the present invention is to equalize the pressure inside the deaeration tower connected to the extraction steam pipe and the inside of the water storage tank even when the supply of the extraction steam from the turbine to the deaeration tower is stopped when the load is cut off. The purpose is to provide a deaerator capable of doing.

【0023】[0023]

【課題を解決するための手段】上記課題を解決するため
に、本発明によれば、外部から供給される水をタービン
から抽気蒸気管を経て供給される抽気蒸気により加熱し
て脱気する脱気塔と、この脱気塔の下位に位置し、脱気
塔からの脱気水を貯留する貯水タンクと、この貯水タン
ク内の貯水内に脱気器からの脱気水を導く脱気水導入管
と、抽気蒸気管からの抽気蒸気を貯水タンクの貯水内に
噴射して貯水を加熱する蒸気噴射管とを備える脱気器に
おいて、貯水タンクの上部と抽気蒸気管とを逆止弁を備
えて接続する均圧管を設けるものとする。
In order to solve the above problems, according to the present invention, degassing is performed by heating water supplied from the outside by extraction steam supplied from a turbine through an extraction steam pipe. An air tower, a water tank located below the deaeration tower and storing deaerated water from the deaeration tower, and deaerated water for guiding deaerated water from the deaerator into the water in the water tank. In a deaerator equipped with an introduction pipe and a steam injection pipe that heats the stored water by injecting the extracted steam from the extraction steam pipe into the stored water of the water storage tank, a check valve is provided between the upper part of the water storage tank and the extraction steam pipe. A pressure equalizing pipe shall be provided for connection.

【0024】[0024]

【作用】タービンの負荷遮断時、タービンからの抽気蒸
気の供給が停止されて、脱気塔及びこれに連通する抽気
蒸気管内の圧力は急激に低下するので、貯水タンク内の
圧力は前述のように脱気塔内より高くなる。したがって
貯水タンク内の貯水のフラッシュ蒸気は貯水タンクの上
部と抽気蒸気管とを接続する逆止弁を備えた均圧管から
抽気蒸気管を経て脱気塔内に流入し、脱気塔内及び抽気
蒸気管内の圧力と貯水タンク内の圧力とは蒸気管5を経
るフラッシュ蒸気による均圧化を補ってより早く十分に
均圧する。このため貯水タンク内の貯水は蒸気噴射管を
経て抽気蒸気管内に逆流せず、したがって抽気蒸気管を
経てタービン内に逆流しない。また、上記の均圧作用に
より、貯水タンク内の貯水は脱気水導入管を経て脱気塔
に逆流しない。
When the load on the turbine is cut off, the supply of the extraction steam from the turbine is stopped, and the pressure inside the degassing tower and the extraction steam pipe that communicates therewith sharply drops, so the pressure inside the water storage tank is as described above. It will be higher than in the degassing tower. Therefore, the flush steam of the stored water in the water storage tank flows into the degassing tower through the extraction steam pipe from the pressure equalizing pipe equipped with a check valve that connects the upper part of the water storage tank and the extraction steam pipe to the inside of the degassing tower and the extraction steam The pressure in the steam pipe and the pressure in the water storage tank compensate for the pressure equalization by the flash steam passing through the steam pipe 5, and the pressure is equalized more quickly and sufficiently. Therefore, the stored water in the water storage tank does not flow back into the extraction steam pipe via the steam injection pipe, and therefore does not flow back into the turbine via the extraction steam pipe. Further, due to the above-mentioned pressure equalizing action, the stored water in the water storage tank does not flow back to the degassing tower through the degassed water introduction pipe.

【0025】なお、均圧管には逆止弁を設けているの
で、プラントの通常運転時、タービンからの抽気蒸気は
直接貯水タンク内に流入しない。
Since the pressure equalizing pipe is provided with a check valve, the extracted steam from the turbine does not directly flow into the water storage tank during normal operation of the plant.

【0026】[0026]

【実施例】以下図面に基づいて本発明の実施例について
説明する。図1は本発明の実施例による脱気器の断面図
である。なお、図1において図2の従来例と同一部品に
は同じ符号を付し、その説明を省略する。図1において
図2の従来例と異なるのは、逆止弁15を取除き、貯水
タンク3の上部と抽気蒸気管16とに接続し、逆止弁2
8を備える均圧管29を設け、貯水タンク3内の水位2
5より上の蒸気部と抽気蒸気管16内とを連通させたこ
とである。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a deaerator according to an embodiment of the present invention. In FIG. 1, the same parts as those in the conventional example of FIG. 2 are designated by the same reference numerals, and the description thereof will be omitted. 1 is different from the conventional example of FIG. 2 in that the check valve 15 is removed and the check valve 2 is connected to the upper part of the water storage tank 3 and the extraction steam pipe 16.
8 is provided with a pressure equalizing pipe 29, and the water level 2 in the water storage tank 3
That is, the steam portion above 5 and the inside of the extraction steam pipe 16 are communicated with each other.

【0027】このような構成により、負荷遮断時、前述
のように脱気塔2内の圧力に追従せず、脱気塔2内より
圧力が高くなった貯水タンク3内の貯水のフラッシュ蒸
気は均圧管29を流れ抽気蒸気管16を経て脱気塔2内
に流入し、脱気塔2内の圧力と貯水タンク3内の圧力と
を、蒸気管5を経て脱気塔2内に流入する前記フラッシ
ュ蒸気と相俟ってより早く十分に均圧する。
With such a configuration, when the load is cut off, the flash steam of the stored water in the water storage tank 3 that does not follow the pressure in the degassing tower 2 as described above and has a higher pressure than that in the degassing tower 2 is generated. It flows through the pressure equalizing pipe 29, flows into the degassing tower 2 through the extraction steam pipe 16, and the pressure inside the degassing tower 2 and the pressure inside the water storage tank 3 flow into the degassing tower 2 through the steam pipe 5. Combined with the flash steam, the pressure is equalized faster and sufficiently.

【0028】この均圧作用により、タービンの負荷遮断
時、貯水タンク3内と脱気塔2内に連通する抽気蒸気管
16内とは均圧されるので、貯水タンク3内の貯水は蒸
気噴射管21から抽気蒸気管16に逆流せず、したがっ
てタービン内に流入せず、タービン翼等へのトラブルを
発生させない。
By this pressure equalizing action, when the load on the turbine is cut off, the water inside the water storage tank 3 and the inside of the extraction steam pipe 16 communicating with the inside of the deaeration tower 2 are pressure-equalized, so that the water stored in the water storage tank 3 is steam-injected. There is no backflow from the pipe 21 to the extraction steam pipe 16, and therefore, there is no inflow into the turbine and no trouble occurs on the turbine blades or the like.

【0029】また、前記均圧作用により貯水タンク3内
の貯水は脱気水導入管20を経て脱気器1内に逆流せ
ず、したがって脱気塔2の内蔵品を破損しない。
Further, due to the pressure equalizing action, the stored water in the water storage tank 3 does not flow back into the deaerator 1 through the deaerated water introduction pipe 20, and therefore the internal components of the deaeration tower 2 are not damaged.

【0030】[0030]

【発明の効果】以上の説明から明らかなように、本発明
によればタービンからの抽気蒸気を脱気塔に導く抽気蒸
気管から分岐して脱気水が貯水される貯水タンクの上部
に接続する均圧管を逆止弁を備えて設けたことにより、
タービンの負荷遮断時、タービンからの抽気蒸気の供給
が停止されて貯水タンク内の圧力が脱気塔内より高くな
っても、貯水タンク内の貯水からのフラッシュ蒸気が均
圧管を流れ抽気蒸気管を経て脱気塔内に流れ、脱気塔内
と貯水タンク内とをより早く十分に均圧するので、貯水
タンク内の貯水が貯水加熱用の蒸気噴射管を経て抽気蒸
気管に逆流してタービンに流入するのを防止でき、この
ため抽気蒸気管に逆止弁を設ける必要がなくなり、ま
た、脱気塔内にも貯水タンク内の貯水が、脱気水導入管
から脱気塔に逆流しないので、この逆流による流入衝撃
による脱気塔の内蔵品の破損を防止できる。
As is apparent from the above description, according to the present invention, the extraction steam from the turbine is connected to the upper part of the water storage tank for branching from the extraction steam pipe for guiding the extraction gas to the degassing tower. By providing a pressure equalizing pipe with a check valve,
When the turbine load is cut off, even if the extraction steam supply from the turbine is stopped and the pressure in the water storage tank becomes higher than that in the degassing tower, the flash steam from the water storage in the water storage tank flows through the pressure equalizing pipe and the extraction steam pipe. Flow into the degassing tower through the flow path, and the pressure inside the degassing tower and the water storage tank is equalized more quickly and sufficiently, so that the water stored in the water storage tank flows back to the extraction steam pipe through the steam injection pipe for heating the stored water, and the turbine It is possible to prevent the inflow to the degassing tower, so that it is not necessary to provide a check valve in the extraction steam pipe, and the stored water in the dewatering tower does not flow back into the degassing tower from the degassing water introduction pipe. Therefore, it is possible to prevent damage to the built-in components of the degassing tower due to the impact due to the backflow.

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

【図1】本発明の実施例による脱気器の断面図FIG. 1 is a sectional view of a deaerator according to an embodiment of the present invention.

【図2】従来の脱気器の断面図FIG. 2 is a sectional view of a conventional deaerator.

【符号の説明】 1 脱気器 2 脱気塔 3 貯水タンク 16 抽気蒸気管 20 脱気水導入管 21 蒸気噴射管 28 逆止弁 29 均圧管[Explanation of symbols] 1 deaerator 2 deaerator 3 water storage tank 16 extraction steam pipe 20 degassed water introduction pipe 21 steam injection pipe 28 check valve 29 pressure equalizing pipe

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】外部から供給される水をタービンから抽気
蒸気管を経て供給される抽気蒸気により加熱して脱気す
る脱気塔と、この脱気塔の下位に位置し、脱気塔からの
脱気水を貯留する貯水タンクと、この貯水タンクの貯水
内に脱気塔からの脱気水を導く脱気水導入管と、抽気蒸
気管からの抽気蒸気を貯水タンクの貯水内で噴射させて
貯水を加熱する蒸気噴射管とを備える脱気器において、
貯水タンクの上部と抽気蒸気管とを逆止弁を備えて接続
する均圧管を設けたことを特徴とする脱気器。
1. A degassing tower for heating and degassing water supplied from the outside by extraction steam supplied from a turbine through an extraction steam pipe, and a degassing tower located below the degassing tower. Tank for storing degassed water of the tank, degassed water introduction pipe for guiding degassed water from the degassing tower into the storage water of this tank, and the extraction steam from the extraction steam pipe is injected in the storage water of the storage tank In a deaerator equipped with a steam injection pipe for heating the stored water,
A deaerator provided with a pressure equalizing pipe for connecting the upper part of the water storage tank and the extraction steam pipe with a check valve.
JP30514991A 1991-11-21 1991-11-21 Deaerator Expired - Lifetime JP2867768B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30514991A JP2867768B2 (en) 1991-11-21 1991-11-21 Deaerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30514991A JP2867768B2 (en) 1991-11-21 1991-11-21 Deaerator

Publications (2)

Publication Number Publication Date
JPH05141612A true JPH05141612A (en) 1993-06-08
JP2867768B2 JP2867768B2 (en) 1999-03-10

Family

ID=17941668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30514991A Expired - Lifetime JP2867768B2 (en) 1991-11-21 1991-11-21 Deaerator

Country Status (1)

Country Link
JP (1) JP2867768B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022721A (en) * 2010-12-15 2011-04-20 哈尔滨锅炉厂有限责任公司 Horizontal collecting pipe type spinning membrane deaerator
CN105841138A (en) * 2016-06-03 2016-08-10 连云港正航电力节能技术有限公司 Efficient rotary film deaerator
JP2017522537A (en) * 2014-07-24 2017-08-10 ジョイント−ストック・カンパニー・サイエンティフィック・リサーチ・アンド・デザイン・インスティテュート・フォー・エナジー・テクノロジーズ・アトムプロエクト(ジェイエスシー・アトムプロエクト)Joint−Stock Company Scientific Research And Design Institute For Energy Technologies Atomproekt (Jsc Atomproekt) Deaerator (option)

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Publication number Priority date Publication date Assignee Title
CN109442381A (en) * 2018-11-09 2019-03-08 陕西黑猫焦化股份有限公司 A kind of Methods of Removing Oxygen for Boiler Feedwater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022721A (en) * 2010-12-15 2011-04-20 哈尔滨锅炉厂有限责任公司 Horizontal collecting pipe type spinning membrane deaerator
JP2017522537A (en) * 2014-07-24 2017-08-10 ジョイント−ストック・カンパニー・サイエンティフィック・リサーチ・アンド・デザイン・インスティテュート・フォー・エナジー・テクノロジーズ・アトムプロエクト(ジェイエスシー・アトムプロエクト)Joint−Stock Company Scientific Research And Design Institute For Energy Technologies Atomproekt (Jsc Atomproekt) Deaerator (option)
CN105841138A (en) * 2016-06-03 2016-08-10 连云港正航电力节能技术有限公司 Efficient rotary film deaerator

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