JPH01274000A - Water chamber of heat exchanger - Google Patents

Water chamber of heat exchanger

Info

Publication number
JPH01274000A
JPH01274000A JP63102561A JP10256188A JPH01274000A JP H01274000 A JPH01274000 A JP H01274000A JP 63102561 A JP63102561 A JP 63102561A JP 10256188 A JP10256188 A JP 10256188A JP H01274000 A JPH01274000 A JP H01274000A
Authority
JP
Japan
Prior art keywords
water chamber
foreign matter
water
obstacles
obstacle
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
Application number
JP63102561A
Other languages
Japanese (ja)
Inventor
Kuniyoshi Ban
伴 邦美
Shigeo Oda
繁夫 織田
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP63102561A priority Critical patent/JPH01274000A/en
Publication of JPH01274000A publication Critical patent/JPH01274000A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable obstacles stored in a water chamber to be continuously discharged during operation by a method wherein a space for controlling some obstacles is arranged below a water chamber, an obstacle discharging device is arranged within the space and an obstacle discharging port is arranged in an obstacle moving direction. CONSTITUTION:Some obstacles 5 are collected at a bottom part of a water chamber 1, a cavity 3 having a shape suitable for installing an obstacle discharging device 2 is provided. An obstacle moving plate is provided with an obstacle discharging port 4 having a diameter capable of performing a simultaneous discharging of the obstacles together with a part of cooling water and with a discharging valve 6. A screw conveyor 2 arranged at a bottom part of the water chamber 1 is operated, thereby some obstacles 5 stored in the water chamber 1 are moved toward the discharging port 4. The cavity 3 at the bottom part of the water chamber has a shape which is suitable for installing of the screw conveyor, collecting of some obstacles and their movement. The obstacles moved under an operation of the screw conveyor are discharged out of the water chamber through the obstacle discharging port 4 together with a part of the cooling water. A terminal end of the discharging port 4 is connected to a water drain pipe having a pressure lower than that of the discharging port or connected to a separate straighner and then only the obstacles are recovered.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、二折流以上の熱交換器の水室に係り、特に、
復水器などで、伝熱管以外に異物の排出口が無い水返し
側水室をもつものの、水返し側水室の中に蓄積した異物
を運転中に排出可能とした熱交換器の水室に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water chamber of a heat exchanger having two or more folded flows, and in particular,
A water chamber of a heat exchanger, such as a condenser, that has a water chamber on the water return side that has no outlet for foreign matter other than the heat transfer tube, but allows foreign matter accumulated in the water chamber on the water return side to be discharged during operation. Regarding.

〔従来の技術〕[Conventional technology]

従来は、運転中における冷却水中の異物除去については
水室の入口側、または、出口側については考慮されてい
るが、冷却管以外に異物の出入口が無い水返し側水室に
ついては考慮されていなかった。従って、プラント運転
中に水返し側水室に蓄積した異物の排出はプラントを停
止するか、あるいは、水室のみ通水を停止し、排水後、
マンホール等より人力で除去していた。プラント停止や
水室への部分的通水停止は、発電の停止や負荷制限を余
儀なくされ、運転効率の低下とともに正常な運転継続に
支障をきたしていた。
Conventionally, removal of foreign matter from cooling water during operation has been considered on the inlet or outlet side of the water chamber, but not on the water return side where there is no entrance or exit for foreign matter other than the cooling pipe. There wasn't. Therefore, if foreign matter accumulated in the water chamber on the water return side during plant operation is discharged, the plant must be stopped, or the water flow to only the water chamber must be stopped, and after draining,
It was removed manually from manholes, etc. Plant shutdowns and partial cutoffs of water flow to the water chambers forced the suspension of power generation and load restrictions, reducing operational efficiency and hindering normal operation.

また、人力による異物排出作業は水室と言う密閉容器内
に入って行なうため、作業者に対する作業環境も良くな
かった。
In addition, the work environment for the workers was not good because the manual work of removing foreign matter was carried out inside a closed container called a water chamber.

なお、この種の装置として関連するものには例えば特開
昭57−184866号、特開昭57−188999号
公報が挙げられる。
Incidentally, related devices of this type include, for example, Japanese Patent Application Laid-Open No. 57-184866 and Japanese Patent Application Laid-Open No. 57-188999.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

復水器等の熱交換器で、水返し側水室をもつものは、従
来、水返し側水室内に蓄積した異物の排出について考慮
されておらず、異物を排出する時にはプラント停止、ま
たは、水室の通水を停止して、水室内の水を排水後、作
業員が水室内に入り。
Conventionally, heat exchangers such as condensers that have a water chamber on the water return side have not taken into consideration the discharge of foreign matter accumulated in the water chamber on the water return side, and when discharging foreign matter, the plant must be stopped or After stopping the water flow to the water chamber and draining the water, the worker entered the water chamber.

人力により除去したり水室内に人が入れない場合は水室
を分解して異物を除去していた。異物が蓄積すると、冷
却管を閉塞し、性能低下をきたすのみならず冷却管を腐
食させる原因ともなるので放置できず、その都度、プラ
ント停止、あるいは。
Foreign matter was removed manually, or if no one could enter the water chamber, the water chamber was disassembled to remove the foreign matter. When foreign matter accumulates, it not only clogs the cooling pipes and causes a decline in performance, but also causes corrosion of the cooling pipes, so it cannot be left untreated, and the plant must be shut down each time.

通水停止をして異物排出作業を余儀な〈実施している。We were forced to stop the water flow and carry out work to remove foreign matter.

異物排出作業は、正常なプラント運転に支障を来たすば
かりではなく、運転効率の低下や密閉室内での作業とな
るため、作業者の安全性にも問題があった。また、水返
し側水室底部には、ドレン排出口が設置されているがプ
ラントの運転中に排出口を開放しても排出口付近のごく
限られた範囲の異物しか排出できず殆ど効果が無かった
Work to remove foreign matter not only interferes with normal plant operation, but also poses safety problems for workers, as it reduces operational efficiency and requires work to be done in a closed room. In addition, a drain outlet is installed at the bottom of the water chamber on the water return side, but even if the outlet is opened during plant operation, foreign matter can only be discharged from a very limited area near the outlet, making it almost ineffective. There wasn't.

本発明の目的は、運転を継続しながら従来ではできなか
った水返し側の異物排出を人力によらず自動的に排出す
ることにある。
An object of the present invention is to automatically discharge foreign matter from the water return side, which could not be done in the past, without manual effort, while continuing operation.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的は、水返し側水室に蓄積している異物を異物を
移動させる装置1例えば、スクリューコンベア等の機械
的異物移動装置、または、異物移動方向に噴出する水流
等の流体を利用した異物排出装置を水返し側水室内に設
置し、水室を異物移動装置に適した形状として水室の異
物移動先に適切な口径の排出口を設置することにより達
成できる。
The purpose of the above is to use a device to move foreign matter accumulated in the water chamber on the water return side. This can be achieved by installing a discharge device in the water chamber on the water return side, making the water chamber a shape suitable for the foreign matter moving device, and installing a discharge port of an appropriate diameter at the destination of the foreign matter movement in the water chamber.

さらに、異物排出装置の運転と排出口開放時間を熱交換
器出入口水室の異物除去用として設置されている逆洗装
置の運転中に実施することによりより効果的に達成され
る。
Furthermore, this can be achieved more effectively by operating the foreign matter discharge device and opening the discharge port during the operation of the backwashing device installed for removing foreign matter from the water chamber at the inlet and outlet of the heat exchanger.

〔作用〕[Effect]

水返し側水室に設置された異物排出装置は、水室底部に
設けられた異物が集まる部分で異物を排出口方向へ移動
させるように動作する。それによって蓄積した異物は異
物排出口へ移動し、開放した排出口から冷却水の一部と
ともに自動的に排出される。また、異物排出装置の運転
時間を既設の水室逆洗装置運転中の水流切替え時を含む
ように設定することにより、水流により冷却管端に押し
つけられている異物が落下し、水室底部に集まるため、
より効果的に異物を集めて排出口から水室外へ排出する
ことができる。
The foreign matter discharging device installed in the water chamber on the water return side operates to move foreign matter toward the discharge port at a portion provided at the bottom of the water chamber where foreign matter gathers. As a result, the accumulated foreign matter moves to the foreign matter discharge port, and is automatically discharged along with a portion of the cooling water from the opened discharge port. In addition, by setting the operating time of the foreign matter ejector to include the time when the water flow is switched while the existing water chamber backwashing device is in operation, the foreign matter that is pressed against the end of the cooling pipe will fall due to the water flow, and will be deposited at the bottom of the water chamber. to gather,
Foreign matter can be more effectively collected and discharged from the outlet to the outside of the water chamber.

〔実施例〕〔Example〕

以下1本発明の一実施例を第1図ないし第6図により説
明する。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

水返し側水室1の底部に異物5を集め異物排出装置2の
設置に適した形状のくぼみ3を設け、異物の移動先には
、冷却水の一部と異物を同時に排出可能な口径を持つ異
物排出口4と排出弁6が設けである。
A recess 3 with a shape suitable for collecting foreign matter 5 and installing a foreign matter discharge device 2 is provided at the bottom of the water chamber 1 on the water return side, and the destination of the foreign matter is provided with a diameter that can discharge part of the cooling water and the foreign matter at the same time. A foreign matter discharge port 4 and a discharge valve 6 are provided.

本実施例によれば、水返し側水室1の底部に設けたスク
リューコンベア2を動作させることにより、水室底部に
蓄積した異物5を排出口4の方向に移動させる。水室底
部のくぼみ3は、スクリューコンベアの設置と異物の収
集、移動に適した形状となっており、スクリューコンベ
アの動作により移動した異物は、異物排出口4から冷却
水の一部と共に水室外へ排出される。排出口4の終端は
、排出口より圧力の低い排水管(図示せず)に接続する
か、または、別途ストレーナ(図示せず)に接続し、異
物のみを回収しても良い。
According to this embodiment, by operating the screw conveyor 2 provided at the bottom of the water return side water chamber 1, the foreign matter 5 accumulated at the bottom of the water chamber is moved in the direction of the discharge port 4. The recess 3 at the bottom of the water chamber has a shape suitable for installing a screw conveyor and collecting and moving foreign matter. Foreign matter moved by the operation of the screw conveyor is discharged from the foreign matter outlet 4 along with a portion of the cooling water outside the water chamber. is discharged to. The terminal end of the discharge port 4 may be connected to a drain pipe (not shown) whose pressure is lower than that of the discharge port, or may be connected to a separate strainer (not shown) to collect only foreign matter.

また、異物排出運転時間は、第3図に示す運転チャート
のように、既設の逆洗装置の運転中の。
Further, the foreign matter discharge operation time is determined during the operation of the existing backwashing device, as shown in the operation chart shown in FIG.

少なくとも冷却水流方向が正流から逆流へ、または、逆
流から正流へ逆転する時間を含むように設定することに
より、異物排出機能は更に向上する。
By setting the cooling water flow direction to include at least the time for reversing the direction of the cooling water from the normal flow to the reverse flow or from the reverse flow to the normal flow, the foreign matter discharging function is further improved.

逆洗装置の運転と異物排出装置の運転を第3図に示すタ
イミングで行うのは、逆洗装置の弁の開閉信号を検知す
ることにより容易である。
It is easy to operate the backwash device and the foreign matter discharge device at the timing shown in FIG. 3 by detecting the opening/closing signal of the valve of the backwash device.

逆洗装置の運転開始により冷却水の流れ方向は、正流か
ら、−旦、停止し、逆流に移るが、この時、冷却管端7
に水流によって押付けられていた異物は管端より外れ、
落下して水室底部へ溜る。この様子を第4図および第5
図に示す。また、逆流から正流に移る場合も冷却水の流
れ方向は、逆流から、−旦、停止し、正流に移るが、こ
の時、冷却管出口端8に水流によって押付けられていた
異物は管端より外れ、落下して水室底部へ溜る。この様
子を第6図に示す。9は冷却水流線。このように、本実
施例によれば、水返し側に蓄積して異物を運転を停止す
ることなく、効果的に排出することができる。第7図な
いし第10図に他の実施例を示す。
When the backwashing device starts operating, the flow direction of the cooling water changes from normal flow to reverse flow.
The foreign object that was pressed by the water flow comes off the end of the tube,
It falls and collects at the bottom of the water chamber. This situation is shown in Figures 4 and 5.
As shown in the figure. Also, when changing from reverse flow to forward flow, the flow direction of the cooling water starts from reverse flow, stops once, and changes to forward flow, but at this time, the foreign matter that was pressed against the cooling pipe outlet end 8 by the water flow is It comes off from the edge, falls and collects at the bottom of the water chamber. This situation is shown in FIG. 9 is the cooling water flow line. In this way, according to this embodiment, foreign matter accumulated on the water return side can be effectively discharged without stopping the operation. Other embodiments are shown in FIGS. 7 to 10.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、プラント運転を停止することなく、水
返し測水室内に蓄積した異物を自動的に容易に水室外に
排出することができる。
According to the present invention, foreign matter accumulated in the water return metering chamber can be automatically and easily discharged to the outside of the water chamber without stopping plant operation.

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

第1図は本発明の一実施例の復水器水返し側水室付近の
断面図、第2図は第1図の■−■矢視断面図、第3図は
本発明の異物排出装置の運転と逆洗装置運転のタイミン
グを示す運転チャート、第4図は通常運転時の異物の位
置説明図、第5図は逆洗により冷却水が逆流した直後の
異物の位置説明図、第6図は逆洗終了直後の異物の位置
説明図、第7図は本発明の第二の実施例の説明図、第8
図は第7図の■−■矢視断面図、第9図も本発明の第三
の実施例の断面図、第10図は第9図のX −X矢視断
面図である。 1・・・水返し側水室、2・・・異物排出装置、3・・
・水室底部形状、4・・・異物排出口、5・・・異物、
6・・・異物排出弁、7・・・冷却管入口端、8・・・
冷却管出口端、9・・・冷却水流線、10・・・水流ノ
ズル。 \C゛ 第3図 第4図 第5図 第6図 第7図 第8図 N9図      第10図 ←×
Fig. 1 is a sectional view of the vicinity of the water chamber on the return side of a condenser according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the ■-■ arrow in Fig. 1, and Fig. 3 is a foreign matter discharge device of the present invention. Figure 4 is an illustration of the position of foreign objects during normal operation; Figure 5 is an illustration of the position of foreign objects immediately after cooling water flows back due to backwashing; The figure is an explanatory diagram of the position of foreign matter immediately after backwashing, FIG. 7 is an explanatory diagram of the second embodiment of the present invention, and FIG.
The figures are a cross-sectional view taken along the line ■--■ in FIG. 7, FIG. 9 is also a cross-sectional view of the third embodiment of the present invention, and FIG. 10 is a cross-sectional view taken along the line X--X in FIG. 1... Water return side water chamber, 2... Foreign matter ejector, 3...
・Water chamber bottom shape, 4...Foreign matter outlet, 5...Foreign matter,
6... Foreign matter discharge valve, 7... Cooling pipe inlet end, 8...
Cooling pipe outlet end, 9... Cooling water flow line, 10... Water flow nozzle. \C゛Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. N9 Fig. 10 ←×

Claims (1)

【特許請求の範囲】 1、異物を含む冷却媒体を水室側に使用する複数折流の
管式熱交換器において、 水返し側の前記水室の下方に前記異物を集めて空間を設
け、前記空間に異物排出装置を設置し、前記異物の移動
方向に異物排出口を設けて、前記水室内に蓄積する前記
異物を運転中、連続的に排出可能なように構成したこと
を特徴とする熱交換器の水室。 2、前記水返し側水室の下方を漏斗状に変形し、先細側
先端に前記異物排出口を設けて前記水室内に蓄積する前
記異物を前記水室内の冷却媒体の一部を使用し、あるい
は、他からの圧力流体を併用して、熱交換器の運転中に
異物の排出を可能にしたことを特徴とする特許請求の範
囲第1項記載の熱交換器の水室。
[Claims] 1. In a multi-fold tube heat exchanger in which a cooling medium containing foreign matter is used in the water chamber side, a space is provided below the water chamber on the water return side to collect the foreign matter; A foreign matter discharge device is installed in the space, and a foreign matter discharge port is provided in the direction of movement of the foreign matter, so that the foreign matter accumulated in the water chamber can be continuously discharged during operation. Heat exchanger water chamber. 2. Deforming the lower part of the water chamber on the water return side into a funnel shape and providing the foreign matter discharge port at the tip of the tapered side to remove the foreign matter accumulated in the water chamber using a part of the cooling medium in the water chamber; Alternatively, the water chamber of a heat exchanger according to claim 1, wherein a pressure fluid from another source is used in combination to enable foreign matter to be discharged during operation of the heat exchanger.
JP63102561A 1988-04-27 1988-04-27 Water chamber of heat exchanger Pending JPH01274000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63102561A JPH01274000A (en) 1988-04-27 1988-04-27 Water chamber of heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63102561A JPH01274000A (en) 1988-04-27 1988-04-27 Water chamber of heat exchanger

Publications (1)

Publication Number Publication Date
JPH01274000A true JPH01274000A (en) 1989-11-01

Family

ID=14330643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63102561A Pending JPH01274000A (en) 1988-04-27 1988-04-27 Water chamber of heat exchanger

Country Status (1)

Country Link
JP (1) JPH01274000A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642893A (en) * 1991-11-25 1994-02-18 Norsk Hydro As Cleaner for heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55172573U (en) * 1979-05-31 1980-12-11
JPS5748931Y2 (en) * 1977-08-31 1982-10-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748931Y2 (en) * 1977-08-31 1982-10-26
JPS55172573U (en) * 1979-05-31 1980-12-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642893A (en) * 1991-11-25 1994-02-18 Norsk Hydro As Cleaner for heat exchanger

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