JPS58135500A - Auxialiary cooling device - Google Patents
Auxialiary cooling deviceInfo
- Publication number
- JPS58135500A JPS58135500A JP57016427A JP1642782A JPS58135500A JP S58135500 A JPS58135500 A JP S58135500A JP 57016427 A JP57016427 A JP 57016427A JP 1642782 A JP1642782 A JP 1642782A JP S58135500 A JPS58135500 A JP S58135500A
- Authority
- JP
- Japan
- Prior art keywords
- cooling system
- air cooler
- cooling device
- piping
- auxiliary cooling
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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、液体金属冷却高速増殖炉発電所の１次主冷却
系或いは２次主冷却系より分岐して設置される補助冷却
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary cooling device installed branching from a primary main cooling system or a secondary main cooling system of a liquid metal cooled fast breeder reactor power plant.
従来、液体金属冷却高速増殖炉発電所の補助冷却装置は
、発電所の異常時或いは事故時の原子炉停止後の崩壊熱
を除去するための装置であり、主冷却系と独立に設置さ
れるもの、或いは主冷却系の一部を共用して設置される
もの等がある。本発明の対象とする補助冷却装置は１次
主冷却系或いは２次主冷却系より分岐して設置される型
のものである。Conventionally, the auxiliary cooling system of a liquid metal cooled fast breeder reactor power plant is a device for removing decay heat after the reactor is shut down in the event of an abnormality or an accident at the power plant, and is installed independently of the main cooling system. There are some systems that share a part of the main cooling system. The auxiliary cooling device to which the present invention is applied is of the type that is installed branching off from the primary main cooling system or the secondary main cooling system.
こむでは、本発明の一実施例として、２次主冷却系より
分岐して設置される補助冷却設備に本発明を適用した場
合を′説明する。In this section, as an embodiment of the present invention, a case where the present invention is applied to an auxiliary cooling facility installed branching off from a secondary main cooling system will be explained.
従来の２次冷却系共用源補助冷却装置の系統構成を第１
図を用いて説明する。２次冷却系は、循環ポンプ１．ホ
ットレグ配管５．コールドレグ配管６．及び膨張タンク
４より構成され、中間熱交換器２で原子炉（図示せず）
より輸送された熱を熱交換し、蒸気発生器３へ熱を輸送
する機能を持っており、この熱輸送を行なう冷却材とし
ては液体金属が使用される。ここで、補助冷却装置はホ
ットレグ配管５よ抄分岐した空気冷却器入口配管１１、
空気冷却器１０．空気冷却器出口止め弁１５、空気冷却
器出口流調弁１６．及び膨張タンクへ合流する空気冷却
器出口配管１２等により構成される。補助冷却装置作動
時には、蒸気発生器上
入口％め弁１３．蒸気発生器出口止め弁１４を全閉とし
、空気冷却器出口止め弁１５を開け、空気冷却ｉ１！！
１０への冷却材流路を形成する。この時空気冷却器１０
は送風機１７を起動し、入口及び出口ダンパー １９．
２０を全開にし、更にベーン１８を開けることによ抄空
気流量を立上げる。The system configuration of the conventional secondary cooling system shared source auxiliary cooling device was changed to
This will be explained using figures. The secondary cooling system consists of a circulation pump 1. Hot leg piping 5. Cold leg piping6. and an expansion tank 4, and a nuclear reactor (not shown) with an intermediate heat exchanger 2.
It has a function of exchanging the heat transported by the steam generator 3 and transporting the heat to the steam generator 3, and liquid metal is used as the coolant for this heat transport. Here, the auxiliary cooling device includes an air cooler inlet pipe 11 branched from the hot leg pipe 5;
Air cooler 10. Air cooler outlet stop valve 15, air cooler outlet flow control valve 16. and an air cooler outlet pipe 12 that joins the expansion tank. When the auxiliary cooling device is in operation, the steam generator upper inlet percentage valve 13. The steam generator outlet stop valve 14 is fully closed, the air cooler outlet stop valve 15 is opened, and the air cooling i1! !
A coolant flow path is formed to 10. At this time, air cooler 10
starts the blower 17, and the inlet and outlet dampers 19.
20 is fully opened and the vane 18 is further opened to increase the air flow rate for papermaking.
一方、発電所の通常の運転時には、冷却材は蒸気発生器
へ輸送され、補助冷却装置は待機状態にあり、空気冷却
器１０の送風機１７は停止し、ベーン１８並びに入口及
び出口ダンパー１９．２０は全閉であり、ベーン１８並
び入口及び出口ダンパー１９．２０の漏洩風量等によ抄
、空気冷却器１ｏはわずかに放熱している。この放熱量
を補償するために空気冷却器出口止め弁１５は全閉とさ
れているものの、空気冷却器出口流調弁１６を通して微
少流量の冷却材が補助冷却装置側にも流れている。On the other hand, during normal operation of the power plant, the coolant is transported to the steam generator, the auxiliary cooling equipment is on standby, the blower 17 of the air cooler 10 is stopped, the vanes 18 and the inlet and outlet dampers 19.20 is fully closed, and the air cooler 1o radiates a small amount of heat due to the amount of leakage air from the vane 18 and the inlet and outlet dampers 19 and 20. Although the air cooler outlet stop valve 15 is fully closed to compensate for this amount of heat radiation, a small amount of coolant also flows to the auxiliary cooling device through the air cooler outlet flow control valve 16.
このような主冷却系共用皺補助装置に於いては、待機運
転時には上述の如く微少流量の冷却材しか流れない。こ
のため、主冷却系中の冷却材中に、ポンプ等の自由液面
を有する機器で巻き込まれた黴少量の不活性ガス、或い
は低温の運転状態では冷却材中に溶解していた不活性ガ
スが気体となゐ等して入り込み、冷却材の流速の遅い補
助冷却装置の高所配管にはガス溜抄が出来る可能性があ
抄、その量次第では補助冷却装置の起動時の流動を不安
定にし、補助冷却装置の除熱機能にも何らかの影響を与
える可能性がある。In such a wrinkle auxiliary device shared by the main cooling system, only a small amount of coolant flows as described above during standby operation. Therefore, in the coolant in the main cooling system, there may be a small amount of mold or inert gas entrained in equipment with a free liquid surface such as a pump, or inert gas dissolved in the coolant under low-temperature operating conditions. There is a possibility that gas may enter the auxiliary cooling system in the form of a gas, forming a gas pocket in the high-place piping of the auxiliary cooling system where the flow rate of the coolant is slow. This may have some effect on the stability and the heat removal function of the auxiliary cooling device.
本発明は、上記の背景に鑑みてなされたもので、その目
的とする所は、補助冷却装置の待機運転時のガス溜抄生
成を防止し、信頼性の高い補助冷却装置を提供するとと
Ｋある。The present invention has been made in view of the above background, and its purpose is to prevent the formation of gas pockets during standby operation of the auxiliary cooling device and to provide a highly reliable auxiliary cooling device. be.
以下第２図を参照して本発明の一実施例を説明する。An embodiment of the present invention will be described below with reference to FIG.
第２図は本発明に係る主冷却系共用型補助冷却装置を説
明するための系統図である。２次冷却系は循環ポンプｌ
、ホットレグ配管５．コールドレグ配管６．膨張タンク
４より構成され循環ポンプ１、膨張タンク４は自由液面
を有し、不活性ガスのカバーガスを保持している。一方
、補助冷却装置はホットレグ配管５より分岐した、空気
冷却器入口配管１１．空気冷却器１０．空気冷却器出口
止め弁１５．空気冷却器出ロ流調弁１６．及び膨張タン
クへ合流する空気冷却器出口配管１２等により構成され
、空気冷却器入口配管１１の最高所にはガス抜き配管７
を設け、このガス抜き配管７を自由液面を有する膨張タ
ンク４に連接し、更にこのガス抜き配管７には弁８を設
けている。FIG. 2 is a system diagram for explaining the main cooling system shared type auxiliary cooling device according to the present invention. The secondary cooling system is a circulation pump.
, hot leg piping 5. Cold leg piping6. The circulation pump 1 is composed of an expansion tank 4, and the expansion tank 4 has a free liquid level and holds an inert cover gas. On the other hand, the auxiliary cooling device is connected to the air cooler inlet pipe 11 which is branched from the hot leg pipe 5. Air cooler 10. Air cooler outlet stop valve 15. Air cooler outlet flow control valve 16. and an air cooler outlet pipe 12 that joins the expansion tank, and a gas vent pipe 7 at the highest point of the air cooler inlet pipe 11.
The gas venting pipe 7 is connected to the expansion tank 4 having a free liquid level, and the gas venting pipe 7 is further provided with a valve 8.
次に作用を説明する。このように構成されている主冷却
系共用型補助冷却装置は、その待機運転時にはガス溜り
を生成することがなく、起動時には円滑な冷却材の流動
を確保できるものである。Next, the effect will be explained. The main cooling system shared type auxiliary cooling device configured in this manner does not generate gas accumulation during standby operation, and can ensure smooth flow of coolant during startup.
すなわち、補助冷却装置は待機運転時には空気冷却器出
口止め弁１５は閉止され、空気冷却器出口流調弁１６に
より空気冷却器１０の放散熱を補償する丸めに必要な冷
却材流量が確保されている。That is, during standby operation of the auxiliary cooling device, the air cooler outlet stop valve 15 is closed, and the air cooler outlet flow control valve 16 ensures the coolant flow rate necessary for rounding to compensate for the heat dissipated by the air cooler 10. There is.
この放散熱は１００かｈクラスの発電所で１ループの空
気冷却器轟り１．５Ｍ％Ｖｔ程度であり、これに対応す
る空気冷却器入口配管内流速は数ｃｍ／ＩＩｃであ抄、
万一不活性ガスがこの配管内に混入しても流れに乗って
下流に押しやるには不十分である。しかし、この混入し
た不活性ガスはガス抜き配管７を通して流れる冷却材の
バイパス流れに乗って、膨張タンク４に運ばれ、そのカ
バーガス空間に解放される。弁８はこのバイパス流量の
調節に使用される。This dissipated heat is about 1.5M%Vt for one loop of air cooler in a 100 h class power plant, and the corresponding flow velocity in the air cooler inlet piping is several cm/IIc.
Even if inert gas were to get mixed into this piping, it would not be enough to get on the flow and push it downstream. However, this mixed inert gas is carried by the bypass flow of the coolant flowing through the gas vent pipe 7 to the expansion tank 4 and released into the cover gas space. Valve 8 is used to regulate this bypass flow rate.
この不活性ガスのガス抜きのためには、ガス抜き配管７
内の冷却材流速は数ｍ／ｅｃから１０ ｍ／８１０の流
速があれば十分であ抄、ガス抜き配管７をＩＢとすれば
、その流量は約５ＴＯＥＩ／ｈｒから１０Ｔｑ昌ｒであ
り、主冷却系流量の０．０５−から０．１１１ ｉ Ｉ
Ｌ量にしか相当せず、プラントの熱効率低下の観点から
は無視出来る程度のものである。To vent this inert gas, gas vent piping 7
It is sufficient that the flow rate of the coolant in the tube is from several m/ec to 10 m/810, and if the gas venting pipe 7 is IB, the flow rate is about 5 TOEI/hr to 10 Tq. Cooling system flow rate from 0.05- to 0.111 i I
This corresponds only to the amount of L, and is negligible from the viewpoint of reducing the thermal efficiency of the plant.
以上の説明のように本発明に係る主冷却系共用型補助冷
却装置は構成されているため、補助冷却装置の待機運転
時にも万一不活性ガスが主冷却系から混入してもガス溜
りを生成することがなく、補助冷却装置はいつでも円滑
に起動することが可能となり、補助冷却装置の信頼性、
引いてはプラントの信頼性を向上させることが出来る。As explained above, the main cooling system shared type auxiliary cooling system according to the present invention is configured, so even if inert gas gets mixed in from the main cooling system during standby operation of the auxiliary cooling system, gas accumulation will not occur. This makes it possible for the auxiliary cooling device to start up smoothly at any time, improving the reliability of the auxiliary cooling device.
In turn, the reliability of the plant can be improved.
次に他のＩＩ！論例を説明する。Next is the other II! Explain the argument.
第３図は、蒸気発生器３が自由液面を有する形式の場合
の一実施例であ抄、ガス抜き配管７は蒸気発生器３に連
接されているが、その作用効果は前述の実施例と同様で
ある。FIG. 3 shows an example in which the steam generator 3 has a free liquid surface, and the gas venting pipe 7 is connected to the steam generator 3, and its effect is the same as that of the above-mentioned embodiment. It is similar to
第４図は、空気冷却器入口配管１１の最為所に分岐ティ
ー２１を設け、そこにガス抜き配管７を設は九実施例で
あり、前述の実施例より更にガス抜きは円滑に行なわれ
る。FIG. 4 shows a ninth embodiment in which a branch tee 21 is provided at the most convenient point of the air cooler inlet pipe 11, and a degassing pipe 7 is provided there, and degassing is performed more smoothly than in the previous embodiment.
第１図は従来の主冷却系共用型補助冷却装置を示す系統
図、第２図は本発明に係る主冷却系共用型補助冷却装置
の一実施例を示す系統図、第３図は本発明の他の実施例
を示す系統図、第４図は空気冷却器入口配管に分岐ティ
ーを設けた実施例の分岐ティー廻妙の構造説明図である
う
３・・・蒸気発生弓、 ４・・・膨張タンク５・・・
ホットレグ配管、６・・・コールドレグ配管、７・・・
ガス抜き配管、 ８・・・弁、１０・・・空気冷却器
、 １１・・・空気冷却器入口配管、１５・・・空気
冷却器出口止め弁、
１６・・・空気冷却器出口流調弁。FIG. 1 is a system diagram showing a conventional auxiliary cooling device shared with the main cooling system, FIG. 2 is a system diagram showing an embodiment of the auxiliary cooling device shared with the main cooling system according to the present invention, and FIG. 3 is a system diagram showing the auxiliary cooling device shared with the main cooling system according to the present invention. Fig. 4 is an explanatory diagram of the structure of a branch tee in an embodiment in which a branch tee is provided in the air cooler inlet piping. 3. Steam generation bow; 4.・Expansion tank 5...
Hot leg piping, 6...Cold leg piping, 7...
Gas vent piping, 8...Valve, 10...Air cooler, 11...Air cooler inlet pipe, 15...Air cooler outlet stop valve, 16...Air cooler outlet flow control valve .
Claims (1)
けられた入口配管と、この入口配管に！ｌ続され九空気
冷却器と、この空気冷却器と前記主冷却系配−とを接続
する出口配管と、この出口配管および入口配管の高所と
主冷却系の自由液面を有する機器とを連通ずるガス抜き
配管とを具備してなゐ補助冷却装置。Inlet piping branched from the main cooling system piping of a metal-cased fast breeder reactor and this inlet piping! nine connected air coolers, an outlet piping connecting the air cooler and the main cooling system wiring, a device having a free liquid surface at a high point of the outlet piping and the inlet piping, and a free liquid surface of the main cooling system. An auxiliary cooling device that is not equipped with a communicating gas vent pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57016427A JPS58135500A (en) | 1982-02-05 | 1982-02-05 | Auxialiary cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57016427A JPS58135500A (en) | 1982-02-05 | 1982-02-05 | Auxialiary cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58135500A true JPS58135500A (en) | 1983-08-12 |
Family
ID=11915934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57016427A Pending JPS58135500A (en) | 1982-02-05 | 1982-02-05 | Auxialiary cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58135500A (en) |
-
1982
- 1982-02-05 JP JP57016427A patent/JPS58135500A/en active Pending
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