JPS5875094A - Thermal shock relaxation device of panel type emergency cooler - Google Patents
Thermal shock relaxation device of panel type emergency coolerInfo
- Publication number
- JPS5875094A JPS5875094A JP56174183A JP17418381A JPS5875094A JP S5875094 A JPS5875094 A JP S5875094A JP 56174183 A JP56174183 A JP 56174183A JP 17418381 A JP17418381 A JP 17418381A JP S5875094 A JPS5875094 A JP S5875094A
- Authority
- JP
- Japan
- Prior art keywords
- cooler
- thermal shock
- panel type
- type emergency
- unit
- 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
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
- Y02E30/30—Nuclear fission reactors
Landscapes
- Thermal Insulation (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Air-Conditioning For Vehicles (AREA)
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】
本発明は原子炉のパネル式緊急炉心冷却器の熱衝撃緩和
装置に関する。より詳細に述べれば、本発明に原子炉、
就中、高温ガス冷却炉のパネル式緊急用炉心冷却器の熱
衝撃を緩和する可動断熱体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal shock mitigation device for a panel type emergency core cooler of a nuclear reactor. More specifically, the present invention includes a nuclear reactor,
In particular, the present invention relates to a movable heat insulator that alleviates thermal shock in a panel-type emergency core cooler for a high-temperature gas-cooled reactor.
鋼製の原子炉容器を用いる高温ガス冷却炉（ＨＴＧＲ）
でに非常用炉心冷却器としてパネル式冷却器が用いられ
ている。High temperature gas cooled reactor (HTGR) using a steel reactor vessel
Panel coolers have already been used as emergency core coolers.
従来パネル式緊急冷却器（以下冷却器という）は、通常
の状態では、熱損失の増大を避ける目的で、冷却材は停
止され、あるいは冷却器は乾燥状態に置かれ高温になり
、緊急の際の冷却開始時には、低温の冷却材が注入され
るようになっている。In conventional panel emergency coolers (hereinafter referred to as coolers), in order to avoid an increase in heat loss, under normal conditions, the coolant is stopped or the cooler is left in a dry state and reaches a high temperature. When cooling begins, low-temperature coolant is injected.
このため冷却器に大きな、熱衝Ｓを受は級損するおそれ
がある。For this reason, if the cooler receives a large thermal shock S, there is a risk of damage.
本発明者に、新党の結果、被冷却物と冷却器の間に可動
断熱体を置き、冷却器に常に冷却材を流すことにより低
温に保ち、冷却開始時には可動断熱体を移動（回転を含
む）することにより、通常時の熱損失の増大を防止しつ
つ、冷却開始時の冷却器の熱衝撃を緩和出来るというこ
とを発見して本発明を成すに致った。As a result of the new party, the present inventor placed a movable heat insulator between the object to be cooled and the cooler, kept the coolant at a low temperature by constantly flowing the coolant into the cooler, and moved the movable heat insulator (including rotation) when cooling started. ), it was discovered that the thermal shock of the cooler at the start of cooling can be alleviated while preventing an increase in heat loss during normal operation, and the present invention was completed.
従って、本発明の主目的にパネル式緊急冷却器の熱衝撃
を緩和する方法を提供することである。Therefore, the main purpose of the present invention is to provide a method for mitigating thermal shock in a panel emergency cooler.
本発明の更なる目的に原子炉、殊に高温ガス冷却炉のパ
ネル式緊急用炉心冷却器の熱衝撃を緩和する可動断熱体
を提供することである。It is a further object of the present invention to provide a movable insulation body for mitigating thermal shock in a panel emergency core cooler of a nuclear reactor, particularly a hot gas cooled reactor.
本発明の可動断熱体に、主として輻射熱伝達に対し断熱
するもので熱伝導率の小さい材料を組み合わせて用い、
可動部の気密性を向上させ、あるいＩｄｌＥＴ動断熱体
全断熱体三重とすることにより、対流熱伝達に対しても
断熱性能を向上させて通常の状態での熱損失を減らすこ
とができる。The movable heat insulator of the present invention is used in combination with a material that mainly insulates against radiant heat transfer and has a low thermal conductivity,
By improving the airtightness of the movable parts, or by using triple IdlET dynamic insulation and total insulation, it is possible to improve insulation performance against convective heat transfer and reduce heat loss under normal conditions.
本発明の可動断熱体には棟々の構成が考えられるが、好
ましい一態様に長方形の鋼板製ユニツ゛トを複数個ジヨ
イントで連結したシステムから成り且つ各ユニットが連
動して水平移動又は各ユニットの長軸を中心にして回転
する形式のものである。Although the movable heat insulating body of the present invention may have a structure of buildings, a preferable embodiment is a system in which a plurality of rectangular steel plate units are connected by joints, and each unit is interlocked to move horizontally or move the length of each unit. It rotates around an axis.
本発明の可動断熱体の別の態様に、セラミックを鋼板で
被覆しＴこ長方形のユニットを複数個ジヨイントで連結
し上述しＴこ態様の形式のものと同じ構成をもつもので
ある。Another embodiment of the movable heat insulator of the present invention has the same structure as the above-mentioned T-shaped embodiment, in which a ceramic is covered with a steel plate and a plurality of rectangular units are connected by joints.
本発明の【−全所熱体げ上述した以外に種々の変形ない
し修飾が考えられる。Various modifications and modifications of the present invention other than those described above are possible.
次に本発明の可動断熱体を実際の原子炉の冷却系に使用
した場合の構成および効果に関して解説する。Next, the structure and effects when the movable heat insulating body of the present invention is used in an actual nuclear reactor cooling system will be explained.
第１回灯本発明の可動断熱体を原子炉の後備冷却系に使
用した態様を示す見取り図である。第１図において、■
は原子炉圧力容器、■げ回転式にした可動断熱体−■は
冷却器である。実線σ通常の状態すなわち冷却器を使用
しない時の状態を示し、破線は冷却器を使用する時の状
態を示す。ここで冷却器を外径約６０ａｍの炭素鋼管を
並べＴこものとし、冷却材に２０ｔｌｌ”、大気圧の水
、原子炉圧力容器温度’ｅ４００ｔ：’として、従来お
よび本発明の方法に、にる冷却器の熱衝撃を比較して第
２図に示す。第２図の中の破線は４００ｃの乾燥状°態
から冷却を開始した場合の冷却器の温度変化を示し、最
大の温度変化速度は毎秒約１２０ｔ：’であ乞。実線は
２０Ｃの冷却水が流れている冷却器に対し。First Light FIG. 1 is a sketch showing an embodiment in which the movable heat insulating body of the present invention is used in a back-up cooling system of a nuclear reactor. In Figure 1, ■
1 is a reactor pressure vessel, 1 is a rotating movable heat insulator, and 2 is a cooler. The solid line σ shows the normal state, ie, the state when the cooler is not used, and the broken line shows the state when the cooler is used. Here, the cooler is made of carbon steel pipes with an outer diameter of about 60 am, and the coolant is 20 tll'', water at atmospheric pressure, and the reactor pressure vessel temperature is 400 t. Figure 2 shows a comparison of the thermal shocks of the coolers.The broken line in Figure 2 shows the temperature change of the cooler when cooling is started from a dry state of 400°C, and the maximum temperature change rate is shown in Figure 2. is about 120 tons per second.The solid line is for a cooler with 20C cooling water flowing.
本発明の可動断熱体を移動して冷却を開始した時の冷却
器の温度変化を示し、最大の温度変化速度に毎秒約０．
１Ｃである。このように本発明の可動断熱体を使用した
場合に従来の方法と比較して、冷却器の熱衝撃は著るし
く小さくすることができる。The figure shows the temperature change of the cooler when cooling is started by moving the movable heat insulator of the present invention, and the maximum temperature change rate is approximately 0.0% per second.
It is 1C. As described above, when the movable heat insulating body of the present invention is used, the thermal shock of the cooler can be significantly reduced compared to the conventional method.
第１図σ本発明の可動断熱体を原子炉の後備冷却系に使
用しＴこ例である。
第２図は、第１図に示す冷却器に対し、従来の方法およ
び本発明の６■動断熱体を使用する方法で冷却を開始し
た時の、それぞれの冷却器の温度変化を示すグラフであ
る。
特許出願人 日本原子力研究所
（外２名）
Ｆｔ Ｍ （４ｆ）
手続補正書（方式）
昭和肩年３月を日
特許庁長官 島 １）春 樹 、
１、事件の表示
昭和を年 儒４午願第 ／り’ｆ／１３ 号６、補正
をする者
事件との関係 出 願 人
住所
菟１ｒ、 、（９ｏ’／） 日ネ／ｌＪナス育″突
戸ケ４、代理人
５、補正命令の日付 昭和１７年２４２３日（発送日
）６、補正の対象
ωａｈ肉１＃２０
奉？図
！１％椹Ｎ（Ｍｙ）Figure 1 is an example of using the movable heat insulator of the present invention in a nuclear reactor back-up cooling system. FIG. 2 is a graph showing the temperature changes of the cooler shown in FIG. 1 when cooling is started using the conventional method and the method using the 6-dynamic heat insulator of the present invention. be. Patent applicant: Japan Atomic Energy Research Institute (2 others) Ft M (4f) Procedural amendment (method) Date: March 1920 (Showa era) Director General of the Patent Office Shima 1) Haruki, 1. Indication of the case: Showa era (Confucian 4th year) Application No./RI'f/13 No. 6, Relationship with the case of the person making the amendment Applicant's address 菟1r, , (9o'/) Hine/lJ Nasu Iku' Sutoke 4, Agent 5, Amendment order Date: 2423, 1942 (shipment date) 6, subject of correction ωah meat 1 #20 Hou? Figure! 1% Sawara N (My)
Claims (1)
ロするために、被冷却物と冷却器の間に設置される水平
又は回転移動が可能な可動断熱体から成るパネル式緊急
冷却器の熱衝撃緩和装置。 ２、可動断熱体が長方形の鋼板製ユニットを複数個ジヨ
イントで連結しＴこシステムから成り且つ各ユニットが
連動して水平移動又に各ユニットの長軸を中心に回転す
ることを特徴とする特許請求の範囲第１項に記載の装置
。 ろ ｏｆ動動態熱体セラミックを鋼板で被覆しＴこ長方
形のユニツＨ複数個ジヨイントで連結したシステムから
成り且つ各ユニットが連動して水平移動又は各ユニット
の長軸を中心に回転することを特徴とする特許請求の範
囲第１項に記載の装置。[Claims] 1. In order to reduce the thermal shock at the start of cooling of the panel type emergency cooler, a movable heat insulator that can be horizontally or rotationally moved is installed between the object to be cooled and the cooler. A thermal shock mitigation device for a panel type emergency cooler consisting of: 2. A patent characterized in that the movable heat insulator consists of a T system in which a plurality of rectangular steel plate units are connected by joints, and each unit is interlocked to move horizontally or rotate around the long axis of each unit. Apparatus according to claim 1. It consists of a system in which a dynamic thermal ceramic is covered with a steel plate and multiple rectangular units are connected by joints, and each unit is linked to move horizontally or rotate around the long axis of each unit. An apparatus according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56174183A JPS5875094A (en) | 1981-10-30 | 1981-10-30 | Thermal shock relaxation device of panel type emergency cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56174183A JPS5875094A (en) | 1981-10-30 | 1981-10-30 | Thermal shock relaxation device of panel type emergency cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5875094A true JPS5875094A (en) | 1983-05-06 |
| JPH0244040B2 JPH0244040B2 (en) | 1990-10-02 |
Family
ID=15974161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56174183A Granted JPS5875094A (en) | 1981-10-30 | 1981-10-30 | Thermal shock relaxation device of panel type emergency cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5875094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049293A (en) * | 1983-08-30 | 1985-03-18 | バブコツク日立株式会社 | Cooling device for cooling system installed to rear section of high-temperature gas furnace |
| JPS61143095U (en) * | 1985-02-25 | 1986-09-04 |
-
1981
- 1981-10-30 JP JP56174183A patent/JPS5875094A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049293A (en) * | 1983-08-30 | 1985-03-18 | バブコツク日立株式会社 | Cooling device for cooling system installed to rear section of high-temperature gas furnace |
| JPH0450553B2 (en) * | 1983-08-30 | 1992-08-14 | Babcock Hitachi Kk | |
| JPS61143095U (en) * | 1985-02-25 | 1986-09-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0244040B2 (en) | 1990-10-02 |
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