JPS5892496A - Acidic condensation water treatment equipment - Google Patents

Acidic condensation water treatment equipment

Info

Publication number
JPS5892496A
JPS5892496A JP56191487A JP19148781A JPS5892496A JP S5892496 A JPS5892496 A JP S5892496A JP 56191487 A JP56191487 A JP 56191487A JP 19148781 A JP19148781 A JP 19148781A JP S5892496 A JPS5892496 A JP S5892496A
Authority
JP
Japan
Prior art keywords
water
acidic
condensation water
acidic condensation
neutralization
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
JP56191487A
Other languages
Japanese (ja)
Other versions
JPS6220871B2 (en
Inventor
Kunihiro Tsuruta
邦弘 鶴田
Tadashi Hikino
曳野 禎
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56191487A priority Critical patent/JPS5892496A/en
Publication of JPS5892496A publication Critical patent/JPS5892496A/en
Publication of JPS6220871B2 publication Critical patent/JPS6220871B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To perform stable neutralization, by forming a reserving cell between an outlet for discharging treated water and a neutralizing cell. CONSTITUTION:A reserving cell 8 is provided between a neutralizing cell 7 and an outlet 5 for discharging treated water so that basic water is reserved under an ordinary condition and that its capacity is set larger than the maximum estimated flow amount. Accordingly, acidity can be relaxed, and sure treatment can be performed.

Description

【発明の詳細な説明】 本発明は、石油給湯機ガス湯沸機等において二次熱交換
を行う際に発生する、酸性結露水の処理機構に関するも
のである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism for treating acidic condensation water generated during secondary heat exchange in oil water heaters, gas water heaters, and the like.

従来の石油、ガスの燃焼熱を利用した湯沸機等において
は一次熱交換により全燃焼熱エネルギーの約80%を利
用して来たが、省エネルギーの観点から、二次熱交換器
を用いてプラス約10%の利用向上が企られている。従
来の一次熱交換のみの場合には、燃焼空気中に含まれる
NOxやco2等のガス1はそのまま大気中に放出され
拡散していたが、二次熱交換を行うことにより、燃焼排
ガス温度が著しく低下し、約60℃乃至約60’Cとな
り、このため燃焼排ガス中の水蒸気が結露し、更にNO
xや002等が溶解して酸性結露水を作り、排出口真下
のコンフリートラ溶かす等の害が発生して来た。これを
解決する手段として、塩基性物質による中和処理を行う
ものとして、第1図、第2図に示す如き機構が最近使用
されて来ている。
Conventional water heaters that use the combustion heat of oil and gas have utilized approximately 80% of the total combustion thermal energy through primary heat exchange, but from the perspective of energy conservation, secondary heat exchangers have been used. The plan is to improve usage by about 10%. In the case of conventional primary heat exchange only, gases 1 such as NOx and CO2 contained in the combustion air were released into the atmosphere as they were and diffused, but by performing secondary heat exchange, the temperature of the combustion exhaust gas can be lowered. The temperature drops significantly to about 60°C to about 60'C, which causes water vapor in the combustion exhaust gas to condense and further NO
x, 002, etc. have been dissolved, creating acidic condensation water, which has caused harm such as melting the comfrey tray directly below the outlet. As a means to solve this problem, a mechanism as shown in FIGS. 1 and 2 has recently been used to carry out neutralization treatment with a basic substance.

これらの従来例は、中和処理槽中に塩基性物質を設置し
、複数個の槽に酸性結露水を順次流して中和処理を行お
うとするもので、塩基性物質を除く槽容積に比べて少流
量の酸性結露水を流すことによって、中和処理槽に夫々
所定時間滞留させ中和処理を行おうとするものであった
。しかしながらこうした従来例に於いては、中和処理槽
を直列に配列したものであるため、中和処理槽の堰堤流
出端に於いて酸性結露水の表面張力による氷塊が発生し
て、この氷塊が表面張力と自重とのバランスが崩れた時
急速に次槽に流入するため、将棋倒し的流れが発生し、
定常的酸性結露水の流入に対して、間欠的流れを形成し
、十分な反応時間を保たぬままに表層流として流出する
た“め、中和処理が不十分なまま流出することが発生し
ていた。又酸性結露水の発生量が短時間的現象にせよ急
増した場合や、酸性結露水の酸度の急増の場合等に、中
和処理不十分のまま流出するといった不具合が発生しで
いた。
In these conventional methods, a basic substance is installed in a neutralization treatment tank, and acidic condensation water is sequentially poured into multiple tanks to perform neutralization. By flowing a small amount of acidic condensation water through the neutralization tank, the neutralization process was carried out by allowing the water to remain in each neutralization tank for a predetermined period of time. However, in these conventional examples, since the neutralization treatment tanks are arranged in series, ice blocks are generated at the outflow end of the dam of the neutralization treatment tank due to the surface tension of the acidic condensed water. When the balance between surface tension and own weight is disrupted, it rapidly flows into the next tank, causing a chess-like flow.
In response to the steady inflow of acidic condensation water, an intermittent flow is formed and flows out as a surface flow without sufficient reaction time, resulting in water flowing out without sufficient neutralization treatment. In addition, when the amount of acidic condensation water generated increases rapidly, even if it is only for a short period of time, or when the acidity of the acidic condensed water increases rapidly, problems may occur where the neutralization process is insufficient and flows out. there was.

本発明は前述の欠点を解決し、安定した中和処理を行う
ことの出来る酸性結露水の処理機構を提供せんとするも
のである。定常的に燃焼している状態に於いて平均的酸
性結露水の量や酸度はほぼ一定であると考えることが出
来るが、その流動形態が間欠的なものとなったり、又酸
度や流入量が時間的に変化することは前述の通りである
が、一般に酸性結露水の処理に於いては、その最大値と
最小値を予測し、これに対しPH7±2程度の流出廃水
の酸度に調整しようとするものであるが、通常の状態で
は塩基性廃液になるように設定することにより、酸性廃
液の流出を極力抑えるようにする。Σれは、酸性結露水
の処理機構のライフエンドに於ける特性維持上からも重
要な処置であり塩基性物質の量、反応槽の数、反応槽に
酸性結露水が滞溜する°時間を、機器が必要とする値よ
りも太き目の値とする。即ち通常の状態に於いては、塩
基性水として処理水出口部6より流出している〇本著案
はこの点に着眼して、この塩基性水を通常の状態からの
急変等前述の状態に於ける不十分な処理のままの酸性結
露水の最終の中和処理に利用しようとするものである。
The present invention aims to solve the above-mentioned drawbacks and provide a treatment mechanism for acidic condensed water that can perform stable neutralization treatment. The average amount and acidity of acidic condensed water can be considered to be almost constant under steady combustion conditions, but the flow pattern may become intermittent, or the acidity or inflow amount may change. As mentioned above, it changes over time, but in general when treating acidic condensed water, the maximum and minimum values should be predicted, and the acidity of the wastewater should be adjusted to a pH of about 7±2. However, by setting the waste liquid to be basic under normal conditions, the outflow of acidic waste liquid is suppressed as much as possible. This is an important measure to maintain the characteristics of the acidic condensation water treatment mechanism at the end of its life. , the value should be thicker than the value required by the device. In other words, under normal conditions, basic water flows out from the treated water outlet 6.This paper focuses on this point and uses this basic water to prevent sudden changes from normal conditions, etc. This method is intended to be used for the final neutralization treatment of acidic dew water that has been insufficiently treated.

即ち上記反応槽と処理水出口部の間に滞溜槽8を設け、
塩基性水を通常の状態では貯え滞溜させるようにし、そ
の容量が最大予測流量よりも大となるように設定するこ
とにより、通常状態からの流量の急増とか、前述の将棋
倒し的流れとか、酸度の高い酸性結露水の発生等に対し
て、中和槽と中和液をあらかじめ用意したと同様の働き
をさせるもので、従来例であれば前述の如きケースでは
、酸度の高い廃水を流出させる事となっていたものを、
緩和して廃水できるため、酸性結露水の処理機構として
より確実な処゛理が行えるものとすることができる。
That is, a retention tank 8 is provided between the reaction tank and the treated water outlet,
By storing and accumulating basic water under normal conditions, and setting its capacity to be larger than the maximum predicted flow rate, it is possible to prevent a sudden increase in flow rate from normal conditions, the aforementioned chess-like flow, and acidity. This system works in the same way as if a neutralization tank and neutralizing solution were prepared in advance to deal with the generation of highly acidic condensed water. What was happening,
Since the water can be discharged after being relaxed, it is possible to provide a more reliable treatment mechanism for acidic condensed water.

3図、第4図に示す本尊茶の実施例に及いては舌状滴下
部4を各段の末端に形成した構造を示5しであるが、従
来例の滴下部4の構造では、酸性結露水の処理機構が、
機器に組込まれ、もしくは単体として、設置される際に
必らずしも水平に設置されず、多少の傾斜が発生しがち
であるため、酸性結露水が土壁面6を伝って不特定の場
所から滴下するという欠点があり、このため所定数の処
理槽7を通る事なく流出する場合が発生し、“中和処理
不十分のまま酸性水として反出されてしまうものして、
第3図、第4図に示す舌状滴下部4に一形成することに
より、前述の傾斜設置時でも、必らず所定の滴下点から
滴下させることができるものであり、ヌその滴下位置を
中和槽7に設置した塩基性物質2の上流側とするように
関係位置を定めることが処理の確実性を高めることがで
きるものとなることはいうまでもない。
3 and 4 show a structure in which a tongue-like dripping part 4 is formed at the end of each stage, but in the structure of the dripping part 4 of the conventional example, acidic The condensation water treatment mechanism is
When installed in equipment or as a stand-alone unit, it is not necessarily installed horizontally and tends to be slightly inclined, so acidic condensation water flows down the earth wall surface 6 and ends up in unspecified locations. There is a drawback that the acid water drips from the water, and as a result, it may flow out without passing through the predetermined number of treatment tanks 7, and it may be discharged as acidic water without being sufficiently neutralized.
By forming the tongue-shaped dripping portion 4 shown in FIGS. 3 and 4, it is possible to drip from a predetermined dripping point even when installed on an inclined plane as described above, and the dripping position can be adjusted. It goes without saying that determining the relative position upstream of the basic substance 2 installed in the neutralization tank 7 can increase the reliability of the treatment.

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

第1図、第2図は従来例の酸性結露水の処理装置の断面
図、第3図、第4図は本発明の一実施例における酸性結
露水の処理装置の断面図である。 1・・・・・・ボデー、2・・・・・・塩基性物質、3
・・・・・・酸性結露水の注入口、4・・・・・・舌状
滴下部、6・・・・・・処理水出口部、6・・・・・・
上壁、7・・・・・・処理槽中和槽、8・・・・・・滞
溜槽。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図 第2図 り 第3図 第4図 り
1 and 2 are cross-sectional views of a conventional acidic condensation water treatment apparatus, and FIGS. 3 and 4 are cross-sectional views of an acidic condensation water treatment apparatus according to an embodiment of the present invention. 1...Body, 2...Basic substance, 3
...Acidic condensation water inlet, 4...Tangular dripping part, 6...Treatment water outlet, 6...
Upper wall, 7... treatment tank neutralization tank, 8... retention tank. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure

Claims (1)

【特許請求の範囲】[Claims] 酸性結露水の処理を行う中和槽を設は処理水出口部と中
和槽の間に滞留槽を形成した酸性結露水の処理装置。
Acidic condensation water treatment equipment with a neutralization tank that processes acidic condensation water and a retention tank between the treated water outlet and the neutralization tank.
JP56191487A 1981-11-27 1981-11-27 Acidic condensation water treatment equipment Granted JPS5892496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56191487A JPS5892496A (en) 1981-11-27 1981-11-27 Acidic condensation water treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56191487A JPS5892496A (en) 1981-11-27 1981-11-27 Acidic condensation water treatment equipment

Publications (2)

Publication Number Publication Date
JPS5892496A true JPS5892496A (en) 1983-06-01
JPS6220871B2 JPS6220871B2 (en) 1987-05-09

Family

ID=16275455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56191487A Granted JPS5892496A (en) 1981-11-27 1981-11-27 Acidic condensation water treatment equipment

Country Status (1)

Country Link
JP (1) JPS5892496A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013150942A (en) * 2012-01-24 2013-08-08 Corona Corp Neutralization device and water heater having the same
JP2013233498A (en) * 2012-05-08 2013-11-21 Corona Corp Neutralization device and water heater having the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0483675U (en) * 1990-11-29 1992-07-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013150942A (en) * 2012-01-24 2013-08-08 Corona Corp Neutralization device and water heater having the same
JP2013233498A (en) * 2012-05-08 2013-11-21 Corona Corp Neutralization device and water heater having the same

Also Published As

Publication number Publication date
JPS6220871B2 (en) 1987-05-09

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