JPH01179897A - Method and device for cleansing narrow tubes in condenser - Google Patents
Method and device for cleansing narrow tubes in condenserInfo
- Publication number
- JPH01179897A JPH01179897A JP124288A JP124288A JPH01179897A JP H01179897 A JPH01179897 A JP H01179897A JP 124288 A JP124288 A JP 124288A JP 124288 A JP124288 A JP 124288A JP H01179897 A JPH01179897 A JP H01179897A
- Authority
- JP
- Japan
- Prior art keywords
- condenser
- slime
- ball
- balls
- chemical
- 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
- 238000000034 method Methods 0.000 title claims description 15
- 239000000126 substance Substances 0.000 claims abstract description 38
- 239000013535 sea water Substances 0.000 claims abstract description 16
- 241000894006 Bacteria Species 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 13
- 239000002826 coolant Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000006386 neutralization reaction Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000000855 fungicidal effect Effects 0.000 abstract 1
- 239000000417 fungicide Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 241001417495 Serranidae Species 0.000 description 1
- 210000001742 aqueous humor Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、蒸気原動機による発電プラントの復水器に係
り、特に復水器細管のスライム形成バクテリア付着によ
って低下した細管伝熱性能の回復。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a condenser for a power plant using a steam motor, and in particular to the recovery of capillary heat transfer performance degraded by slime-forming bacteria adhesion on the condenser capillary tubes.
維持に好適な復水器細管洗浄方法、及び装置に関するも
のである。The present invention relates to a condenser tube cleaning method and apparatus suitable for maintenance.
例えは火力発電プラン１−なと、蒸気原動機を備えたプ
ラン１〜の復水器は、その冷却媒体として河海水を用い
る例が多い。この場合、復水器の細管内面にスタイ１１
形成ハタテリアが繁殖してスライムを形成し、伝熱効果
を妨げる。このため、復水器の細セ・内を自動的に洗浄
してスライムを除去する必要がある。この種の洗浄技術
に関しては、特開昭５１．、！１３７０３号、同５４−
］、 １．４６２３、及び同６０−２９５９５か公知で
ある。For example, in the case of thermal power generation plan 1-, the condensers of plans 1 to 3 equipped with a steam engine often use river and sea water as their cooling medium. In this case, the style 11 is attached to the inner surface of the condenser tube.
The formation of grouper terriers breeds and forms slime, which hinders the heat transfer effect. Therefore, it is necessary to automatically clean the inside of the condenser to remove slime. Regarding this type of cleaning technology, please refer to Japanese Patent Application Laid-open No. 1983-1999. ,! No. 13703, 54-
], 1.4623, and 60-29595 are known.
従来技術に係る復水器細管の洗浄方法は、（１）薬液循
環法と、（ｉ）スポンジボール循環法とに大別される。Conventional methods for cleaning condenser tubes are broadly classified into (1) chemical circulation method and (i) sponge ball circulation method.
」１記従来技術における薬液循環法は、復水器細管に付
着するスライム形式バクテリアを死滅させると共に、そ
の着能力を低下させるために使用した薬品、例えは塩素
系薬品そのまま外洋に排出していた点及び海水中に付加
された残留塩素は経時的に低下し、数時間後にはほぼＯ
となる点について十分配慮か為されておらず、外洋に排
出された塩素による環境問題があった。1. In the conventional chemical circulation method, the chemicals used to kill the slime-type bacteria adhering to the condenser tubes and reduce their adhesion ability, such as chlorine-based chemicals, were discharged into the open ocean as they were. The residual chlorine added to the point and seawater decreases over time, and after a few hours it is almost O2.
Not enough consideration was given to this issue, and the chlorine discharged into the open ocean caused environmental problems.
こうした公害問題によって薬液循環法は行われなくなり
、専らスポンジ製のボール（以下、単にホ′−ルという
）を循環させて機械的にスライムを擦り取る方法が用い
られている。しかし、細菌の繁殖か盛んになる夏期にお
いてはスライム形成バクテリアが多量に細管に付着して
、除去されないままになり、細管伝熱性能低下を来たし
、復水器真空度低下２発電電気出力低下しこ至るという
問題か生じて来ている。Due to these pollution problems, the chemical circulation method is no longer used, and a method of mechanically scraping off the slime by circulating sponge balls (hereinafter simply referred to as holes) is now used. However, in the summer when bacteria multiply, a large amount of slime-forming bacteria adheres to the tubes and remains unremoved, resulting in a decrease in tube heat transfer performance and a decrease in the vacuum level of the condenser2. The problem of reaching this point has arisen.
本発明のＩ−１的は、環境を汚染することなく、復水器
細管内に付着したスライムを迅速、容易に除去し得る方
法、及び、上記発明方法の実施に好適な装置を提供する
ことにある。An object of the present invention is to provide a method for quickly and easily removing slime attached to a condenser tube without polluting the environment, and an apparatus suitable for carrying out the method of the invention. It is in.
上記目的は、復水器内海水を復水器の入口弁及び出口弁
で遮断して隔離し、隔離状態の復水器に細管洗浄ボール
を循環できるようにし、かつ、復水器細管にイ」着する
スライス形バクテリアを死滅させると共にその粘着能力
を低下させる薬品を含浸した薬品含浸ボールを循環させ
ると、薬品洗浄及びボール洗浄の相乗効果により達成さ
れる。The above purpose is to isolate the seawater in the condenser by blocking it with the inlet and outlet valves of the condenser, to enable circulation of the capillary cleaning balls in the isolated condenser, and to install water into the condenser capillaries. The synergistic effect of chemical cleaning and ball cleaning is achieved by circulating a chemical-impregnated ball impregnated with a chemical that kills adhering slice-shaped bacteria and reduces their adhesion ability.
ｌ記の如く復水器内の海水を人口弁及び出口弁により遮
断・隔離し、薬品含浸ボールを閉サイクル内で隔離する
ことにより、薬品含有海水が直接外洋に排出されること
を防止できる。By shutting off and isolating the seawater in the condenser using the artificial valve and outlet valve, and isolating the chemical-impregnated balls within a closed cycle, it is possible to prevent the chemical-containing seawater from being directly discharged into the open ocean.
又、薬品含浸ボールは、復水器細管通過時に細管付着ス
ライム形成バクテリアに作用し、薬品殺菌作用によって
スライム形式バクテリアを死滅させると共に、バクテリ
アによる分泌物の粘性を失わせて剥離させ、剥離したス
ライムを細管から除去する。In addition, the chemical-impregnated balls act on slime-forming bacteria adhering to the condenser tubes when they pass through the condenser tubes, and kill the slime-form bacteria by the chemical sterilization effect, as well as remove the viscosity of the secreted bacteria and remove the exfoliated slime. is removed from the tubule.
この薬品含有ボール循環は、スライムが細管から除去さ
れるまで行い、閉サイクル内の海水に含有する薬品濃度
をチエツクしながら、含有薬品濃度に応じて閉サイクル
内の使用済循環液を河海に排出し、又は中和槽に移して
処理を行うこともできる。This chemical-containing ball circulation is continued until the slime is removed from the capillary, and while checking the concentration of chemicals contained in the seawater in the closed cycle, the used circulating fluid in the closed cycle is transferred to the river or sea according to the concentration of chemicals contained. It can also be treated by being discharged or transferred to a neutralization tank.
以下に本発明の一実施例を第１図により説明する。第１
図は、復水器の冷却ｉｆσ水系の取水から放水までの系
統図である。An embodiment of the present invention will be described below with reference to FIG. 1st
The figure is a system diagram from water intake to water discharge of the condenser cooling ifσ water system.
循環水ポンプ１１で昇圧された海水は、復水器１へ熱交
換冷却水として導かれ、復水器１の復水器細管２にて熱
交換を行った後、外洋９へ排出される（本図においては
、読図の便宜上、外洋の図面参照番号「９」を２カ所に
付した）。この運転状態において、海水中のスライム形
成バクテリアは、復水器細管２に付着してスライムを形
成し伝熱性能を低下させる。The seawater pressurized by the circulating water pump 11 is led to the condenser 1 as heat exchange cooling water, and after heat exchange is performed in the condenser thin tube 2 of the condenser 1, it is discharged to the open ocean 9 ( In this figure, for ease of reading, the drawing reference number ``9'' for the open ocean has been added in two places). In this operating state, slime-forming bacteria in the seawater adhere to the condenser tube 2 to form slime and reduce heat transfer performance.
この復水器細管２に付着したスライム除去のために、復
水器１の入口弁６及び出口弁７を全閉し、復水器１内の
海水を外洋から遮断して隔離する。In order to remove the slime adhering to the condenser tube 2, the inlet valve 6 and outlet valve 7 of the condenser 1 are fully closed, and the seawater in the condenser 1 is isolated from the open ocean.
一方、ボール回収器４内の洗浄用ボールに薬品を含浸さ
せるために、薬品注入装置５から薬品を注入すると共に
、ボール循環ポンプ３を運転して、薬品含浸ボールを復
水器］へ送り出す。On the other hand, in order to impregnate the cleaning balls in the ball recovery device 4 with chemicals, the chemicals are injected from the chemical injection device 5, and the ball circulation pump 3 is operated to send the chemical-impregnated balls to the condenser.
（第２図参照）復水器１に入った薬品含浸ボール１３Ａ
は、復水器細管２を通過する過程において、復水器細管
２の内面に付着するスライム１２に接触となから、ホー
ルに含浸している薬品〕４を排出し、復水器細管２に付
着しているスライム１２を剥離させる。(See Figure 2) Chemical-impregnated ball 13A in condenser 1
In the process of passing through the condenser tube 2, it comes into contact with the slime 12 adhering to the inner surface of the condenser tube 2, and discharges the chemicals impregnated into the holes and flows into the condenser tube 2. The attached slime 12 is peeled off.
剥離したスライム１２は、後続の薬品含浸ボール１．３
Ｂにより復水器細管２から除去される。The peeled slime 12 is transferred to the subsequent chemical-impregnated ball 1.3
B is removed from the condenser tube 2.
（第］−図参照）復水器細管２を通過したボールは、ホ
ール捕集器１０にて捕捉され、ボール投入・回収装置４
を経由する際に薬品を注入され、閉サイタル内での循環
運転か繰り返される。(Refer to Figure 1) The balls that have passed through the condenser tube 2 are captured by the hole collector 10, and the balls are collected by the ball input/recovery device 4
During the process, chemicals are injected and the cycle is repeated within a closed circulatory system.
この循環運転においてスライ１１１２の除去が完了した
後は、薬品注入装置５の運転を停止し、適宜閉サイクル
内のｉＩ水サンブリンクを行い、残留薬品濃度を監視し
、必要に応し外洋９への排出又は中和槽８への排出を行
う。After the removal of the sly 1112 is completed in this circulation operation, the operation of the chemical injection device 5 is stopped, the iI water sunblink is performed in a closed cycle as necessary, the residual chemical concentration is monitored, and the chemical injection device 5 is transferred to the open ocean 9 as necessary. or discharge into the neutralization tank 8.
本発明によれば、復水器］の入口弁６及び出口弁７にて
復水器１内の）房水は外洋９及び吸、排用配管から隔離
されているため、高濃度の薬品が外７Ｙづ）Ａ直ｊ′Ａ
ｕ＋出されるのを防止することができると共に、薬品含
浸ホール１３を復水器細管２へ通すことによりスライム
１２の剥離を促進し、剥離スライム１２を除去するとい
う効果がある。According to the present invention, the aqueous humor in the condenser 1 is isolated from the open ocean 9 and the suction and drainage pipes by the inlet valve 6 and outlet valve 7 of the condenser, so that highly concentrated chemicals are Outside 7Yzu) A straight j'A
In addition to being able to prevent u+ from being discharged, passing the chemical impregnated hole 13 into the condenser tube 2 promotes the peeling of the slime 12 and has the effect of removing the peeled slime 12.
第３図は、ボールに薬品を含浸させる為の構成部分の詳
細を示す。FIG. 3 shows details of the components for impregnating the ball with chemicals.
ホール投入・回収装置４のボール循環経路の入口弁１７
及び出口弁１８を全閉し、ドレン弁１−９にて１〜レン
を排出した後、該ドレン弁１９を閉じ、真空ポンプ１６
にてボール回収装置４内し二投入されている多孔スポン
ジボール内部まで真空状態しこし、その後、薬品注入装
置５からホール回収装置４内の薬品を注入し、ボール内
部まで薬品を含浸させる。その後、ボール循環経路の人
口弁１７及び同出口街］８を開弁操作し、ボール循環を
行う。Inlet valve 17 of ball circulation path of hole charging/recovering device 4
After fully closing the outlet valve 18 and discharging 1 to 100 ml through the drain valve 1-9, the drain valve 19 is closed and the vacuum pump 16 is turned on.
A vacuum is applied to the inside of the porous sponge balls that have been put into the ball recovery device 4, and then the chemicals in the hole recovery device 4 are injected from the chemical injection device 5 to impregnate the inside of the balls with the chemicals. Thereafter, the artificial valve 17 and the exit point 8 of the ball circulation route are opened to perform ball circulation.
第４図は半回分単胴復水器１し３本発明を適用した場合
の一実施例を示す。この場合は、復水器１の入口弁６及
び出口弁７の開閉運用及び、ボール循環切替弁２０の開
閉運用を行うことにより、半区分毎のプラｙ Ｉ−運転
中の復水器細管洗浄が実施できる。FIG. 4 shows an embodiment in which the present invention is applied to semi-batch single-shell condensers 1 to 3. In this case, by opening/closing the inlet valve 6 and outlet valve 7 of the condenser 1 and opening/closing the ball circulation switching valve 20, cleaning of the condenser tubes during ply I-operation for each half section is performed. can be implemented.
本発明の方法及び装置によれば、注入薬品の直接外洋排
出による環境公害問題を防止でき、しかも、復水器細管
に付着するスライム剥離及び除去を迅速かつ容易に行っ
て復水器細管の伝熱性能を回復、維持することができる
。According to the method and apparatus of the present invention, it is possible to prevent environmental pollution caused by direct discharge of injected chemicals into the open ocean, and moreover, the slime adhering to the condenser tube can be quickly and easily peeled off and removed, and the slime can be easily transferred to the condenser tube. Thermal performance can be recovered and maintained.
第１図は本発明装置の一実施例を示す系統図である。
第２図は上記実施例における復水器細管のスライム除去
の状況を示す説明図である。
第３図は」１記実施例においてボールに薬品を含浸する
為の構成部分を示す系統図である。
第４図は本発明装置を半回分単胴復水器に適用した一実
施例を示す系統図である。
１・復水器、２ 復水器細管、３ ボール循環ポンプ、
４ ボール回収装置、５ 薬品注入装置、６ 人口弁、
７・・出口弁、８ 中和槽、９ ・外洋、Ｙ２・スライ
ム、１３ 薬品含浸ボール、１６真空ポンプ、２０・・
切替弁。FIG. 1 is a system diagram showing an embodiment of the apparatus of the present invention. FIG. 2 is an explanatory diagram showing the state of slime removal from the condenser tube in the above embodiment. FIG. 3 is a system diagram showing the constituent parts for impregnating the ball with chemicals in the first embodiment. FIG. 4 is a system diagram showing an embodiment in which the device of the present invention is applied to a semi-batch single-shell condenser. 1. Condenser, 2. Condenser tube, 3. Ball circulation pump,
4 Ball collection device, 5 Chemical injection device, 6 Population valve,
7. Outlet valve, 8 Neutralization tank, 9. Open ocean, Y2. Slime, 13. Chemical impregnated ball, 16. Vacuum pump, 20..
switching valve.
Claims (1)
ジ状のボールを流通循環せしめて、上記細管の内面に付
着したカライムを洗浄する方法において、上記スポンジ
状のボールに、スライム形成バクテリアの殺菌およびス
ライム剥離用の薬剤を含浸させて流通循環せしめること
を特徴とする、復水器細管の洗浄方法。 ２、河海水を冷却媒体とする復水器の細管内に、スポン
ジ状のボールを送り込んで循環させる構造の復水器細管
洗浄装置において、 （ａ）上記復水器の細管に河海水を注入する管路に入口
弁を設けると共に、該河海水を排出する管路に出口弁を
設けて、上記の細管内の河海水を河海から遮断隔離し得
る構造とし、 （ｂ）上記入口弁の下流側と、出口弁の上流側との間に
循環管路を設けるとともに、 （ｃ）上記循環管路中に循環用のポンプ、及び、ボール
投入・回収装置を設け、かつ、 （ｄ）上記ボール投入・回収装置に薬剤を注入する手段
を設けたことを特徴とする、復水器細管の洗浄装置。 ３、前記のボール投入・回収装置は、（ａ）これに連通
する管路を遮断する弁を備えた密閉ケースと、（ｂ）該
ケース内を真空ポンプに接続する管路と、（ｃ）該ケー
ス内に薬液を注入する管路と、（ｄ）ドレン配管とを設
けたものであることを特徴とする、特許請求の範囲第２
項に記載の、復水器細管の洗浄装置。[Claims] 1. A method for cleaning carime adhering to the inner surface of the capillary by circulating sponge-like balls in the capillary tubes of a condenser that uses river and sea water as a cooling medium. A method for cleaning a condenser tube, the method comprising impregnating a ball with an agent for sterilizing slime-forming bacteria and removing slime and circulating the ball. 2. In a condenser tube cleaning device that circulates sponge-like balls by feeding them into the tubes of a condenser that uses river and seawater as a cooling medium, (a) Injecting river and seawater into the tubes of the condenser. An inlet valve is provided in the pipe for discharging the river and seawater, and an outlet valve is provided in the pipe for discharging the river and seawater, so that the river and seawater in the above-mentioned narrow tube can be isolated from the river and the sea. A circulation pipe is provided between the downstream side and the upstream side of the outlet valve, (c) a circulation pump and a ball feeding/recovery device are provided in the circulation pipe, and (d) the above A cleaning device for a condenser tube, characterized in that a means for injecting a chemical into a ball feeding/recovering device is provided. 3. The ball loading/recovering device described above includes (a) a sealed case equipped with a valve that shuts off a pipe line communicating with the case, (b) a pipe line connecting the inside of the case to a vacuum pump, and (c) Claim 2, characterized in that a pipe line for injecting a chemical solution into the case, and (d) a drain pipe are provided.
A cleaning device for condenser tubes as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP124288A JPH01179897A (en) | 1988-01-08 | 1988-01-08 | Method and device for cleansing narrow tubes in condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP124288A JPH01179897A (en) | 1988-01-08 | 1988-01-08 | Method and device for cleansing narrow tubes in condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01179897A true JPH01179897A (en) | 1989-07-17 |
Family
ID=11495989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP124288A Pending JPH01179897A (en) | 1988-01-08 | 1988-01-08 | Method and device for cleansing narrow tubes in condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01179897A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5856327B1 (en) * | 2015-03-16 | 2016-02-09 | フロンティアテクノロジー株式会社 | Water treatment agent and water treatment method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62288498A (en) * | 1986-06-06 | 1987-12-15 | Toshiba Corp | Custody of seawater using equipment |
-
1988
- 1988-01-08 JP JP124288A patent/JPH01179897A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62288498A (en) * | 1986-06-06 | 1987-12-15 | Toshiba Corp | Custody of seawater using equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5856327B1 (en) * | 2015-03-16 | 2016-02-09 | フロンティアテクノロジー株式会社 | Water treatment agent and water treatment method |
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