JPS5895102A - Deaerator - Google Patents
DeaeratorInfo
- Publication number
- JPS5895102A JPS5895102A JP19231381A JP19231381A JPS5895102A JP S5895102 A JPS5895102 A JP S5895102A JP 19231381 A JP19231381 A JP 19231381A JP 19231381 A JP19231381 A JP 19231381A JP S5895102 A JPS5895102 A JP S5895102A
- Authority
- JP
- Japan
- Prior art keywords
- water
- deaerator
- steam
- gas
- blow
- 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
- Saccharide Compounds (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は脱気装置に係シ、特に給水中に溶存する酸素、
炭酸ガス等のガスを除去するのに好適な脱気装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deaerator, in particular oxygen dissolved in water supply,
The present invention relates to a deaerator suitable for removing gases such as carbon dioxide gas.
従来ボイラ給水中に溶存する酸素、炭酸ガス等を除去す
る方法には、エジェクタ等の真空手段により、脱気器内
の圧力を給水の飽和圧力まで下げ、ガスの溶解度を低下
させて脱気する方法と、水蒸気を脱気器内に供給し、給
水を器内圧力下における飽和温度まで昇温して、ガスの
溶解度を低下させて脱気する方法とがある。前者の方法
においては、脱気性能を確保するために脱気器内の圧力
を給水の飽和温度の圧力まで低下する必要があるが、給
水温度の変動等に対応して脱気器内を所要の圧力に制御
することが困離で十分な脱気性能が保持されなかったシ
、器内で過剰に自己蒸発して系外に蒸気を放出したυす
石欠点がある。又この場合脱気器出口給水温度が低いた
め、ガス中にイオウ酸化物、炭酸ガス等の低温腐食性成
分を含む場合に節炭器を設けると、節炭器伝熱管の外面
が腐食されるという欠点もある。後者の方法においては
、加熱用蒸気を必要とするため、ボイラ設備としてはプ
ロセス送気量にこの加熱用蒸気量を加算し九′容量とす
る必要がある丸め、設備費が大きくなる。Conventional methods for removing dissolved oxygen, carbon dioxide, etc. from boiler feedwater include using vacuum means such as an ejector to lower the pressure inside the deaerator to the saturation pressure of the feedwater, lowering the solubility of the gas, and degassing. There are two methods: one method is to supply water vapor into a deaerator, and the other is to raise the temperature of the feed water to the saturation temperature under the pressure inside the deaerator to lower the solubility of the gas and degas it. In the former method, in order to ensure deaeration performance, it is necessary to reduce the pressure inside the deaerator to the pressure at the saturation temperature of the feed water, but the pressure inside the deaerator must be reduced to accommodate fluctuations in the feed water temperature, etc. It was difficult to control the pressure to a certain level, and sufficient degassing performance was not maintained, and there were also drawbacks to the stone, which self-evaporated excessively in the vessel and released steam outside the system. In addition, in this case, since the temperature of the water supply at the deaerator outlet is low, if a economizer is installed when the gas contains low-temperature corrosive components such as sulfur oxides and carbon dioxide, the outer surface of the economizer heat transfer tube will corrode. There is also a drawback. In the latter method, since heating steam is required, the boiler equipment needs to add the heating steam amount to the process air supply amount to obtain a 9' capacity, which increases the equipment cost.
本発明の目的は、給水温度の変化等によシ脱気性能が低
下することなく、また外部からの水蒸気の供給を受ける
ことなく、給水中の溶存酸素や炭酸ガスを除去すること
ができる脱気装置を提供することにある。The purpose of the present invention is to remove dissolved oxygen and carbon dioxide from the water supply without deteriorating the deaeration performance due to changes in the water supply temperature or without receiving water vapor from the outside. The aim is to provide air-conditioning equipment.
本発明は、ボイラの蒸気ドラムより抜き出されるブロー
水の保有する熱エネルギーに着目し、この熱エネルギー
を利用して発生する蒸気によってボイラ給水用脱気装置
に供給されるガス溶存水を加熱し、脱気するようにした
ものである。The present invention focuses on the thermal energy possessed by the blow water extracted from the steam drum of the boiler, and uses this thermal energy to heat the gas-dissolved water supplied to the boiler feedwater deaerator with the generated steam. , which is designed to remove air.
以下本発明の実施例を図面に基づいて説明する。Embodiments of the present invention will be described below based on the drawings.
第１図線本発明の一例を示す装置の系統図であって、図
中１は給水タンク、２は給水加熱器、３は脱気器、４は
燃焼室、５は蒸気ドラム、７はフラッシュタンクを示し
ている。Fig. 1 is a system diagram of an apparatus showing an example of the present invention, in which 1 is a feed water tank, 2 is a feed water heater, 3 is a deaerator, 4 is a combustion chamber, 5 is a steam drum, and 7 is a flash Showing the tank.
給水夕／り１のガス溶存水は、給水加熱器２で加熱され
た後、脱気器３に供給される。脱気水は燃焼室４内の予
熱部４人を経て加熱された後、蒸気ドラム５に導入され
、次いで蒸発部４Ｂで蒸気を発生し、気水温合流体とし
て蒸気ドラム５に吐出される。蒸気ドラム５で分離され
た飽和蒸気は過熱部４Ｃに導かれ、過熱蒸気としてＰｆ
ｒｌＮの装置、設備に供給される。The gas-dissolved water in the water supply period 1 is heated in the feed water heater 2 and then supplied to the deaerator 3. After the degassed water is heated through four preheating sections in the combustion chamber 4, it is introduced into the steam drum 5, and then steam is generated in the evaporation section 4B and discharged to the steam drum 5 as a mixture of air and water temperature. The saturated steam separated in the steam drum 5 is led to the superheating section 4C, and is converted into Pf as superheated steam.
Supplied to rlN equipment and equipment.
ここで蒸気ドラム５のブロー水は連続ブロー配管６を経
てフラッシュタンク７に導入する。蒸気ドラム５内は高
圧条件下にあり、フラッシュタンク７内は蒸気ドラムの
内圧に比べて低圧（例・えば４ｄ程度）であるので、フ
ラッシュタンク内において、ブロー水は蒸気となる。こ
の蒸気が配管８を経て脱気器３に供給される。Here, the blow water from the steam drum 5 is introduced into a flash tank 7 via a continuous blow pipe 6. The interior of the steam drum 5 is under high pressure conditions, and the interior of the flash tank 7 is at a lower pressure (for example, about 4d) than the internal pressure of the steam drum, so the blown water turns into steam in the flash tank. This steam is supplied to the deaerator 3 via the pipe 8.
脱気器３において、脱気器３の上部に設けられ九スプレ
ノズル９から噴霧されたガス溶存水は脱気器３に供給さ
れ九蒸気によって加温され、脱気器内圧力における飽和
温度まで上昇する。この過程でガス溶存水中のガスの溶
解度が低下して脱気され、脱気ガスは器外に放出され、
脱気水は上記のように予熱部４Ａ、に導入される。In the deaerator 3, the gas-dissolved water sprayed from the spray nozzle 9 provided at the upper part of the deaerator 3 is supplied to the deaerator 3, heated by the vapor, and raised to the saturation temperature at the deaerator internal pressure. do. In this process, the solubility of the gas in the gas-dissolved water decreases and it is degassed, and the degassed gas is released outside the vessel.
Degassed water is introduced into the preheating section 4A as described above.
フラッシュタンク７内の圧力は、圧力制御パルプ１０に
よるブロー水のフラッシュタンクへの供給量に、よって
制御され、フラッシュタ／り７のブロー水のレベルは、
流量制御パルプ１１によるブロー水の流量を制御するこ
とによって行なわれる。The pressure in the flash tank 7 is controlled by the amount of blow water supplied to the flash tank by the pressure control pulp 10, and the level of blow water in the flash tank 7 is:
This is done by controlling the flow rate of the blow water using the flow rate control pulp 11.
フラッシュタンク７の下部よシ給水加熱器２に導入され
たブロー水の保有熱によって、給水タンク１から供給さ
れるガス溶存水が加熱される。給水加熱器２を経たブロ
ー水はブロータンク１２に導かれる。なお図中、１３は
バーナを示している。Gas-dissolved water supplied from the water tank 1 is heated by the heat retained in the blow water introduced into the water supply heater 2 from the lower part of the flash tank 7 . Blow water that has passed through the feed water heater 2 is led to a blow tank 12. In addition, in the figure, 13 indicates a burner.
本発明において、給水加熱器から脱気器に至る給水ライ
ンの一部を分岐させ、この分岐路に熱交換器を設け、こ
の熱交換器において、給水加熱器で加熱されたガ・溶゛
存水がプ・−某と間接熱交換され、ブロー水の保有熱に
よって加熱されて発生する蒸気を脱気器に導入するよう
にすることもできる。In the present invention, a part of the water supply line leading from the feed water heater to the deaerator is branched, a heat exchanger is provided in this branch line, and in this heat exchanger, the gas/dissolved water heated by the feed water heater is It is also possible that the water is indirectly heat exchanged with the blow water and the steam generated by being heated by the heat retained in the blow water is introduced into the deaerator.
本実施例によれば、脱気器に導入される蒸気は、ブロー
水との間接熱交換によって発生するものである九め、キ
ャリオーバの発生を防止できる効果がある。According to this embodiment, the steam introduced into the deaerator is generated by indirect heat exchange with blow water, and has the effect of preventing the occurrence of carryover.
以上のように本発明によれば、脱気器の器内圧が一定に
保たれるので、真空脱気器のように給水温度の変化によ
って脱気性能が低下することがなく、また”外部から水
蒸気を供給する必要がない。As described above, according to the present invention, the internal pressure of the deaerator is kept constant, so unlike vacuum deaerators, the deaeration performance does not deteriorate due to changes in the feed water temperature, and There is no need to supply water vapor.
また脱気器に供給する蒸気としてゲイ２本体よシ発生す
る蒸気を使用することも可能であるが、この場合は低エ
ネルギー蒸気で間に合う脱気器用蒸気として高エネルギ
ーレベルの蒸気を使うこととなりエネルギーの無駄使い
となるが、本゛考案では蒸気ドラムのブロー水の保有熱
を利用する亀のであるため、−熱エネルギーの有効利用
を図ることができる。It is also possible to use the steam generated by the Gay 2 main unit as the steam supplied to the deaerator, but in this case, low-energy steam would be enough, but high-energy steam would be used as the deaerator steam, and the energy would be low. However, since the present invention utilizes the heat retained in the blow water of the steam drum, the thermal energy can be used effectively.
第１図は本発明の一例を示す装置の系統図である。
１・・・給水タンク、 ２・・・給水加熱器、３・
・・脱気器、 ４・・・燃焼室、５・・・蒸気
ドラム、 ７・・・フラッシュタンク、９・・・ス
プレィノズル、１２・・・ブロータンク１３・・・バー
ナ。
代理人 鵜 沼 辰 之
（ほか２名）FIG. 1 is a system diagram of an apparatus showing an example of the present invention. 1... Water supply tank, 2... Water supply heater, 3.
... Deaerator, 4... Combustion chamber, 5... Steam drum, 7... Flash tank, 9... Spray nozzle, 12... Blow tank 13... Burner. Agent Tatsuyuki Unuma (and 2 others)
Claims (1)
水の保有熱を利用して発生する蒸気によって、ボイラ給
水用脱気装置に供給されるガス溶存水を加熱して、脱気
するように構成されていることを特徴とする脱気装置。(1) It is configured to heat and degas the gas-dissolved water supplied to the boiler feedwater deaerator with the steam generated by utilizing the retained heat of the blow water extracted from the steam drum of the boiler. A degassing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19231381A JPS5895102A (en) | 1981-11-30 | 1981-11-30 | Deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19231381A JPS5895102A (en) | 1981-11-30 | 1981-11-30 | Deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5895102A true JPS5895102A (en) | 1983-06-06 |
Family
ID=16289195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19231381A Pending JPS5895102A (en) | 1981-11-30 | 1981-11-30 | Deaerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118001A (en) * | 1987-10-31 | 1989-05-10 | Babcock Hitachi Kk | Waste-heat recovery boiler |
| JPH0364306U (en) * | 1989-10-12 | 1991-06-24 |
-
1981
- 1981-11-30 JP JP19231381A patent/JPS5895102A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118001A (en) * | 1987-10-31 | 1989-05-10 | Babcock Hitachi Kk | Waste-heat recovery boiler |
| JPH0364306U (en) * | 1989-10-12 | 1991-06-24 |
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