JPH0559806A - Floor finishing method for nuclear power plant - Google Patents
Floor finishing method for nuclear power plantInfo
- Publication number
- JPH0559806A JPH0559806A JP3244223A JP24422391A JPH0559806A JP H0559806 A JPH0559806 A JP H0559806A JP 3244223 A JP3244223 A JP 3244223A JP 24422391 A JP24422391 A JP 24422391A JP H0559806 A JPH0559806 A JP H0559806A
- Authority
- JP
- Japan
- Prior art keywords
- concrete floor
- power plant
- nuclear power
- floor surface
- thermal spraying
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 10
- 238000007751 thermal spraying Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 7
- 239000007769 metal material Substances 0.000 abstract description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 238000009408 flooring Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 239000010408 film Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 102200052313 rs9282831 Human genes 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- Floor Finish (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、高速増殖炉などによ
る原子力発電所のコンクリート建屋の床面をライニング
する床仕上げ方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor finishing method for lining a floor surface of a concrete building of a nuclear power plant using a fast breeder reactor or the like.
【０００２】[0002]
【従来の技術】周知のように、高速増殖炉では、原子炉
で発生した熱は中間熱交換機で冷却材としての液体ナト
リウムに伝えられ、この液体ナトリウムにより蒸気発生
器に熱が供給される。このような原子炉格納施設や付帯
施設において、前記の冷却剤として使用されているナト
リウムが何らかの原因で漏れ出してコンクリート床に接
触すると、ナトリウムとコンクリート中の水分とが激し
く反応し、被害を大きくする恐れがある。このような事
故を防止するために、原子力発電所の建屋のコンクリー
ト床は鋼板でライニングされている。2. Description of the Related Art As is well known, in a fast breeder reactor, heat generated in a nuclear reactor is transferred to liquid sodium as a coolant in an intermediate heat exchanger, and the liquid sodium supplies heat to a steam generator. In such a reactor containment facility or ancillary facilities, if sodium used as the coolant leaks out and contacts the concrete floor for some reason, sodium reacts violently with the water in the concrete, causing serious damage. There is a risk of To prevent such accidents, the concrete floor of the nuclear power plant building is lined with steel plates.
【０００３】[0003]
【発明が解決しようとする課題】コンクリート床面にラ
イニング材として鋼板を貼付ける方法は、材料コストお
よび施工コストがともに高く、メンテナンスにも手間が
かかる。ライニングしようとする床の形状に合わせて載
断した多数の鋼板を床に貼付け、それら鋼板同士を隙間
なく溶接しなければならない。またその前に、鋼板が床
に密着するように床面を平滑に仕上げておく必要があ
る。また床の凹凸箇所や、出隅、入隅などのある複雑な
部分に隙間なく鋼板を貼付けるのは非常に面倒である。
鋼板の継ぎ目が多くなると、それらを完全に隙間なく溶
接仕上げするのは非常に大変である。The method of sticking a steel plate as a lining material on a concrete floor surface has high material cost and construction cost, and also requires a lot of maintenance. It is necessary to attach a large number of steel plates mounted and cut according to the shape of the floor to be lined to the floor and weld the steel plates together without a gap. Further, before that, it is necessary to finish the floor surface smoothly so that the steel sheet adheres to the floor. Moreover, it is very troublesome to attach the steel sheet to a complicated portion such as an uneven portion on the floor, a projecting corner, or a entering corner without a gap.
As the number of seams in steel plates increases, it is very difficult to weld them together without any gaps.
【０００４】また鋼板を床面に接着する適切な方法も開
発されていない。例えば特開昭５９−２３０７４０号公
報（Ｂ３２Ｂ １３／１２）にみられるように、コンク
リートの表面にプラスチックを溶射して薄い皮膜を作
り、そのプラスチック皮膜の上に金属板を熱溶着する技
術が知られている。ところが、前記のような原子力発電
所では５００℃以上もの高温のナトリウムが床に接触す
ることを考慮しておかなければならず、従来技術のよう
に溶射によって形成されたプラスチック層を介して鋼板
を接着する方法では、接着層であるプラスチックが高温
に耐えられない。Further, no suitable method for adhering the steel plate to the floor has been developed. For example, as disclosed in Japanese Patent Application Laid-Open No. 59-230740 (B32B 13/12), there is known a technique of spraying plastic on the surface of concrete to form a thin film and thermally welding a metal plate onto the plastic film. Has been. However, it has to be taken into consideration that sodium at a temperature as high as 500 ° C. or more comes into contact with the floor in the nuclear power plant as described above, and the steel sheet is formed through the plastic layer formed by thermal spraying as in the prior art. In the bonding method, the adhesive layer plastic cannot withstand high temperatures.
【０００５】この発明は前述した従来の問題点に鑑みな
されたもので、その目的は、原子力発電所のコンクリー
ト床をライニング仕上げするにあたり、材料コストおよ
び施工コストが安く、メンテナンスも簡単で、しかも要
求される耐熱性を満たすようにすることにある。The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to reduce the material cost and the construction cost, to simplify the maintenance, and to request for lining the concrete floor of a nuclear power plant. To meet the required heat resistance.
【０００６】[0006]
【課題を解決するための手段】そこでこの発明では、高
耐熱性の金属、セラミックスまたはほうろうをライニン
グ材料とし、この材料を加熱溶融させてコンクリート床
面に高速度に吹き付けて、コンクリート床面に前記材料
の皮膜を形成するようにした。Therefore, in the present invention, a highly heat-resistant metal, ceramics or enamel is used as a lining material, and this material is heated and melted and sprayed at a high speed on the concrete floor surface, and A film of material was formed.
【０００７】[0007]
【作用】つまりこの発明では、高耐熱性の金属、セラミ
ックまたはほうろうをコンクリート床面に溶射してライ
ニング仕上げをするわけである。溶射によるライニング
は下地面の凹凸に関係なく均一にライニング皮膜を形成
することができる。床の凹凸や出隅、入隅部分など、複
雑な床形状に対しても隙間なくライニングすることがで
き、前述のように高温のナトリウムが床面に漏れ出した
としても、ナトリウムがコンクリートに直接接触するの
を完全に阻止することができる。That is, in the present invention, the lining finish is achieved by spraying a highly heat resistant metal, ceramic or enamel on the concrete floor surface. The lining by thermal spraying can form a uniform lining film regardless of the unevenness of the underlying surface. Even complicated floor shapes such as unevenness, protruding corners, and entering corners of the floor can be lined without gaps, and even if high-temperature sodium leaks to the floor surface as described above, sodium directly contacts the concrete. It is possible to completely prevent contact.
【０００８】[0008]
【実施例】まずこの発明に適用することのできるライニ
ング材について説明する。多くの金属材料は５００℃程
度の高温に十分に耐え得る耐熱性を有しているが、材料
コストや施工の容易さの面から鋼またはステンレスが好
ましい。金属材料以外ではセラミックスやほうろうをラ
イニング材として使用することができる。EXAMPLES First, a lining material applicable to the present invention will be described. Many metal materials have sufficient heat resistance to withstand a high temperature of about 500 ° C., but steel or stainless is preferable from the viewpoint of material cost and ease of construction. In addition to metal materials, ceramics and enamel can be used as the lining material.
【０００９】金属材料を溶射するのであればガスおよび
フーク溶射がよい。ガス溶射は、アセチレンガスと酸素
を混合し燃焼させながら吹きつけるものであり、装置の
移動が容易であって、施工に便利である。また、アーク
溶射は２本の溶射材料ワイヤの先端に間に直流アークを
発生させ、それによって溶融された部分を空気ジェット
で微粒子として素材面（コンクリート床面）へ吹き付け
て皮膜とする方法である。If the metal material is sprayed, gas and fuku spraying are preferable. Gas spraying is a method in which acetylene gas and oxygen are mixed and blown while being burned, and the equipment can be easily moved and is convenient for construction. In addition, arc spraying is a method in which a direct current arc is generated between the ends of two sprayed material wires, and the melted portions are sprayed as fine particles by an air jet onto the material surface (concrete floor surface) to form a film. ..
【００１０】セラミックスやほうろうなどの高融点材料
を溶射する場合にはプラズマ溶射が適している。プラズ
マ溶射は、陰極と陽極ノズルの間に発生させた直流アー
クで作動ガス（アルゴン、窒素あるいはアルゴンと窒
素、水素またはヘリウムの混合ガス）を超高温に熱し、
プラズマジェットとしてノズルから噴出させ、この中へ
溶射材料の粉末を送り込み、加熱、加速して素材表面に
吹き付けて皮膜とするものである。Plasma spraying is suitable for spraying high melting point materials such as ceramics and enamel. Plasma spraying heats a working gas (argon, nitrogen or a mixed gas of argon and nitrogen, hydrogen or helium) to a super high temperature with a direct current arc generated between a cathode and an anode nozzle.
A plasma jet is ejected from a nozzle, and the powder of the thermal spraying material is fed into this, heated and accelerated to be sprayed onto the surface of the material to form a film.
【００１１】図１には高速増殖炉の付帯施設の建屋の一
部を示している。１は原子炉であり、２は原子炉１およ
び付帯設備を収納する建屋のコンクリート構造物を示し
ている。図のようにコンクリート床の全面に金属、セラ
ミックスまたはほうろうからなる溶射によるライニング
皮膜３を形成するだけでなく、壁が床に接する最下部の
適当な高さ位置まで床と同じライニング皮膜３ａを溶射
により形成する。FIG. 1 shows a part of the building of an auxiliary facility of the fast breeder reactor. Reference numeral 1 is a reactor, and 2 is a concrete structure of a building that houses the reactor 1 and incidental equipment. As shown in the figure, not only the lining coating 3 made of metal, ceramics or enamel is formed on the entire surface of the concrete floor by spraying, but also the same lining coating 3a as the floor is sprayed to an appropriate height position at the bottom where the wall contacts the floor. Formed by.
【００１２】[0012]
【発明の効果】以上のように、この発明では、金属、セ
ラミックスまたはほうろうをライニング材料とし、この
材料を溶射によってコンクリート床面に吹き付けて適宜
厚さの皮膜（ライニング層）を形成するので、鋼板を床
面に貼付ける従来方法に比べて材料コストおよび施工コ
ストが安くなる。床の形状が複雑であったり凹凸や出隅
・入隅の多い形状でも、非常に簡単に溶射によりライニ
ング層を均一に形成することができる。またこの方法で
下地の微細な凹凸や傾斜を修正しなくても、隙間なくラ
イニング層を形成することができる。また何らかの原因
でライニング層が損傷しても、その欠陥箇所は再溶射す
ることにより容易に補修することができ、メンテナンス
も簡単になる。As described above, according to the present invention, a metal, ceramics or enamel is used as the lining material, and this material is sprayed onto the concrete floor surface by spraying to form a film (lining layer) of an appropriate thickness. The material cost and construction cost are lower than those of the conventional method in which is attached to the floor surface. Even if the floor has a complicated shape or has a large number of irregularities and a large number of protrusions and recesses, the lining layer can be uniformly formed by thermal spraying. Further, the lining layer can be formed without gaps without correcting fine irregularities and inclination of the base by this method. Further, even if the lining layer is damaged for some reason, the defective portion can be easily repaired by re-spraying, and the maintenance becomes easy.
【図１】この発明の方法により床を仕上げた原子力発電
所の施設の概略断面図である。FIG. 1 is a schematic sectional view of a facility of a nuclear power plant whose floor is finished by the method of the present invention.
１ 原子炉 ２ コンクリート構造物 ３、３ａ ライニング皮膜 1 Reactor 2 Concrete structure 3 and 3a Lining film
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ２１Ｃ 1/02 ＧＤＦ Ｈ 7156−2Ｇ 13/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location G21C 1/02 GDF H 7156-2G 13/00
Claims (1)
ト床面をライニング仕上げする方法であって、高耐熱性
の金属、セラミックまたはほうろうをライニング材料と
し、この材料を加熱溶融させてコンクリート床面に高速
度に吹き付けて、コンクリート床面に前記材料の皮膜を
形成することを特徴とする原子力発電所の床仕上げ方
法。1. A method for lining a concrete floor surface of a reactor containment facility or an ancillary facility, wherein a high heat-resistant metal, ceramic or enamel is used as a lining material, and the material is heated and melted to form a concrete floor surface. A floor finishing method for a nuclear power plant, which comprises spraying at a high speed to form a film of the material on a concrete floor surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3244223A JP2701614B2 (en) | 1991-08-30 | 1991-08-30 | Floor finishing method for nuclear power plants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3244223A JP2701614B2 (en) | 1991-08-30 | 1991-08-30 | Floor finishing method for nuclear power plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0559806A true JPH0559806A (en) | 1993-03-09 |
| JP2701614B2 JP2701614B2 (en) | 1998-01-21 |
Family
ID=17115580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3244223A Expired - Lifetime JP2701614B2 (en) | 1991-08-30 | 1991-08-30 | Floor finishing method for nuclear power plants |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2701614B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184803A (en) * | 2011-12-27 | 2013-07-03 | 贵阳铝镁设计研究院有限公司 | Method and structure for reducing temperature stress of corridor |
| CN111575630A (en) * | 2020-04-21 | 2020-08-25 | 长江水利委员会长江科学院 | A kind of concrete surface protection treatment method based on plasma thermal spray technology |
-
1991
- 1991-08-30 JP JP3244223A patent/JP2701614B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184803A (en) * | 2011-12-27 | 2013-07-03 | 贵阳铝镁设计研究院有限公司 | Method and structure for reducing temperature stress of corridor |
| CN111575630A (en) * | 2020-04-21 | 2020-08-25 | 长江水利委员会长江科学院 | A kind of concrete surface protection treatment method based on plasma thermal spray technology |
| CN111575630B (en) * | 2020-04-21 | 2022-08-23 | 长江水利委员会长江科学院 | Concrete surface protection treatment method based on plasma thermal spraying technology |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2701614B2 (en) | 1998-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1880000B (en) | Sputtering target, sputtering target assembly and method of welding sputtering target plates | |
| US6996153B2 (en) | Core-type furnace | |
| US2515191A (en) | Method of joining metals | |
| JP2701614B2 (en) | Floor finishing method for nuclear power plants | |
| JPH07107478B2 (en) | Assembling method of gas circulation block provided for metallurgical container | |
| Piskarev et al. | Coatings on a First Wall Plasma-Facing Surface: Analysis and High Heat Flux Testing on the Tsefey-M E-Beam Facility | |
| CN211339263U (en) | Arrangement structure of flame blocking bricks of substrate glass kiln | |
| CN110064350A (en) | A kind of oxidation reactor titanium-steel composite board end socket and its welding method | |
| WO2020076038A1 (en) | Bonding component, bonding component for semiconductor manufacturing process, and equipment for semiconductor manufacturing process | |
| CN85108900A (en) | On workpiece, form the method for matallic surface layer | |
| JP3066546B2 (en) | Method for coating first wall of fusion reactor | |
| CN210602799U (en) | Vacuum furnace of planting and welding type anchoring part | |
| EP0449377B1 (en) | Method for welding enamelled metal objects and the obtained product | |
| JPH028357A (en) | Thermal spraying method | |
| JP2514043B2 (en) | Method for manufacturing honeycomb structure | |
| JPS54138802A (en) | Spraying method for lining layer of furnace | |
| JPS6126871Y2 (en) | ||
| KR20240157055A (en) | Warrior device and warrior control method | |
| JPH02301548A (en) | Method for repairing material confronting plasma | |
| JPH04116377A (en) | Container for melting metal | |
| CN118756089A (en) | Atmospheric plasma spraying method and thermal barrier coating | |
| CN119192983A (en) | A protective adhesive and its application and a protective method for air film holes | |
| JPS61266316A (en) | Glass melting furnace | |
| JPS5735934A (en) | Instantaneous baking method | |
| JPS6138988B2 (en) |