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JPS6220871B2 - - Google Patents
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JPS6220871B2 - - Google Patents

Info

Publication number
JPS6220871B2
JPS6220871B2 JP19148781A JP19148781A JPS6220871B2 JP S6220871 B2 JPS6220871 B2 JP S6220871B2 JP 19148781 A JP19148781 A JP 19148781A JP 19148781 A JP19148781 A JP 19148781A JP S6220871 B2 JPS6220871 B2 JP S6220871B2
Authority
JP
Japan
Prior art keywords
water
acidic
neutralization
treatment
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.)
Expired
Application number
JP19148781A
Other languages
Japanese (ja)
Other versions
JPS5892496A (en
Inventor
Kunihiro Tsuruta
Tei Hikino
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

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50℃乃至約60℃となり、このた
め燃焼排ガス中の水蒸気が結露し、更にNOxや
CO2等が溶解して酸性結露水を作り、排出口真下
のコンクリートを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。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つて、中
和処理槽に夫々所定時間滞留させ中和処理を行お
うとするものであつた。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、中和処理槽の堰提流出端に於いて
酸性結露水の表面張力による水塊が発生して、こ
の水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つた不具合が発生してい
た。
Conventional water heaters that use the combustion heat of oil and gas have utilized approximately 80% of the total combustion heat 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 approximately 10%. In the conventional case of only primary heat exchange, gases such as NOx and CO 2 contained in the combustion air were released into the atmosphere and diffused.
By performing secondary heat exchange, the flue gas temperature decreases significantly to approximately 50℃ to approximately 60℃, which causes water vapor in the flue gas to condense, further reducing NOx and
CO 2 and other substances dissolve and create acidic condensation water, causing damage such as melting the concrete 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. 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. The idea was to carry out the neutralization treatment by flowing a small flow of acidic dew water through the neutralization treatment tanks so that the acidic condensation water remained in each of the neutralization treatment tanks for a predetermined period of time. However, in these conventional examples, since the neutralization treatment tanks are arranged in series, a water mass is generated due to the surface tension of acidic condensation water at the weir outflow end of the neutralization treatment tank. When a water mass loses its balance between surface tension and its own weight, it rapidly flows into the next tank, resulting in a chess-like flow, forming an intermittent flow in contrast to the steady flow of acidic condensation water, and creating a sufficient Because the reaction time was not maintained and the product flowed out as a surface flow, it occurred that the neutralization process was insufficient. In addition, when the amount of acidic condensed 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 arise in which the neutralization process is insufficient and flows out.

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つたり、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。これは、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
が滞留する時間を、機器が必要とする値よりも大
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5より流出している。
本考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。即ち上記反応槽と処理
水出口部の間に滞留槽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
させる事となつていたものを、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。
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 condensation 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 condensation water, the maximum and minimum values should be predicted, and the acidity of the effluent 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. Set the value to be larger than the required value. That is, under normal conditions, the treated water flows out from the treated water outlet section 5 as basic water.
The present invention focuses on this point and attempts to utilize this basic water for the final neutralization treatment of acidic condensation water that has been insufficiently treated in the aforementioned conditions such as sudden changes from normal conditions. It is. That is, by providing a retention tank 8 between the reaction tank and the treated water outlet, the basic water is stored and retained under normal conditions, and its capacity is set to be larger than the maximum predicted flow rate. , in response to a sudden increase in flow rate from normal conditions, the aforementioned chess-like flow, and the generation of highly acidic condensed water, it works in the same way as if a neutralization tank and neutralization liquid were prepared in advance. In the case of the above-mentioned case in the conventional case, waste water with high acidity would have been discharged, but it can be discharged in a relaxed manner, so that more reliable treatment can be performed as a treatment mechanism for acidic condensation water. I can do it.

第1図、第2図の従来例の滴下部4に対して第
3図、第4図に示す本発明の実施例に於いては舌
状滴下部4を各段の末端に形成した構造を示して
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
結露水が上壁面6を伝つ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廃出されてしまうもの
であつたが、このような場合にも本発明は酸度緩
和効果を期待できる。もちろん本発明の実施例と
して、第3図、第4図に示す舌状滴下部4を形成
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るものであ
り、又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。
In contrast to the dripping portion 4 of the conventional example shown in FIGS. 1 and 2, the embodiment of the present invention shown in FIGS. 3 and 4 has a structure in which a tongue-shaped dripping portion 4 is formed at the end of each stage. As shown, in the structure of the dripping part 4 of the conventional example, when the acidic condensation water treatment mechanism is installed in a device or as a standalone unit, it is not necessarily installed horizontally, and some Since the slope tends to occur, there is a disadvantage that acidic condensed water flows down the upper wall surface 6 and drips from an unspecified place, and as a result, it may flow out without passing through the predetermined number of treatment tanks 7. In the past, acid water was disposed of without being sufficiently neutralized, but the present invention can be expected to have an acidity-reducing effect even in such cases. Of course, as an embodiment of the present invention, by forming the tongue-shaped dripping portion 4 shown in FIGS. 3 and 4, it is possible to always drip from a predetermined dripping point even when the above-mentioned inclined installation is performed. Needless to say, it is possible to increase the reliability of the treatment by determining the relative position so that the dropping position is on the upstream side of the basic substance 2 installed in the neutralization tank 7.

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

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、5……処理
水出口部、6……上壁、7……処理槽中和槽、8
……滞溜槽。
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, 5...Treated water outlet, 6...Top wall, 7...In treatment tank Japanese tank, 8
...Retention tank.

Claims (1)

【特許請求の範囲】[Claims] 1 酸性結露水の処理を行う中和槽を設け処理水
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。
1. A treatment device for acidic condensed water, which includes a neutralization tank for treating acidic condensed 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 JPS5892496A (en) 1983-06-01
JPS6220871B2 true 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 (1)

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

Families Citing this family (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
JP5868773B2 (en) * 2012-05-08 2016-02-24 株式会社コロナ Neutralizer and hot water supply apparatus having the same

Cited By (1)

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

Also Published As

Publication number Publication date
JPS5892496A (en) 1983-06-01

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