JPH044298U - - Google Patents
Info
- Publication number
- JPH044298U JPH044298U JP1990044018U JP4401890U JPH044298U JP H044298 U JPH044298 U JP H044298U JP 1990044018 U JP1990044018 U JP 1990044018U JP 4401890 U JP4401890 U JP 4401890U JP H044298 U JPH044298 U JP H044298U
- Authority
- JP
- Japan
- Prior art keywords
- piston portion
- control rod
- cylinder
- drive shaft
- reactor vessel
- 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
- 239000012530 fluid Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram 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
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Actuator (AREA)
Description
第１図は、本考案による水圧駆動式制御棒駆動
装置における駆動軸のピストン部を示す断面図、
第２図は、第１図のＸ−Ｘ線に沿つての断面図、
第３図は、従来の水圧駆動式制御棒駆動装置の基
本的な構成を示す概略説明図、第４図は、従来の
ピストン部にピストンリングを取り付けた状態を
示す断面図、第５図は原子炉に取り付けられた従
来の水圧駆動式制御棒駆動装置を具体的に示す断
面図である。図中、
２……シリンダ、３……駆動軸、２０……水圧
式制御棒駆動装置、２１……ピストン部、２３…
…玉保持ハウジング、２５……玉、２７……圧縮
ばね、３０……フイン。
FIG. 1 is a sectional view showing a piston portion of a drive shaft in a hydraulically driven control rod drive device according to the present invention;
FIG. 2 is a sectional view taken along the line X-X in FIG.
FIG. 3 is a schematic explanatory diagram showing the basic configuration of a conventional hydraulically driven control rod drive device, FIG. 4 is a cross-sectional view showing a state in which a piston ring is attached to a conventional piston part, and FIG. 1 is a cross-sectional view specifically showing a conventional hydraulically driven control rod drive device installed in a nuclear reactor. In the figure, 2... cylinder, 3... drive shaft, 20... hydraulic control rod drive device, 21... piston part, 23...
...ball holding housing, 25...ball, 27...compression spring, 30...fin.
Claims (1)
クラスタに連結され前記原子炉容器蓋を貫通して
前記シリンダ内に延び且つ上端にピストン部を有
する駆動軸とを備え、前記ピストン部の上下の流
体圧を制御することにより前記駆動軸を上下動さ
せるようになつている水圧駆動式制御棒駆動装置
において、前記ピストン部の外周面からばね手段
により径方向に突出して前記シリンダの内周面に
転動可能に接する玉を、該ピストン部に周方向等
間隔に複数設けると共に、前記ピストン部の外周
面に多数のフインを軸方向適宜間隔に設けてラビ
リンスシールを形成したことを特徴とする水圧駆
動式制御棒駆動装置。 a cylinder installed in the reactor vessel lid; and a drive shaft that is connected to a control rod cluster, extends into the cylinder through the reactor vessel lid, and has a piston portion at its upper end; In a hydraulic control rod drive device configured to move the drive shaft up and down by controlling fluid pressure, the rod protrudes radially from the outer circumferential surface of the piston portion by means of a spring means and is attached to the inner circumferential surface of the cylinder. A water pressure device characterized in that a plurality of balls that are in contact with each other in a rolling manner are provided on the piston portion at equal intervals in the circumferential direction, and a large number of fins are provided on the outer peripheral surface of the piston portion at appropriate intervals in the axial direction to form a labyrinth seal. Drive type control rod drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990044018U JPH044298U (en) | 1990-04-26 | 1990-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990044018U JPH044298U (en) | 1990-04-26 | 1990-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH044298U true JPH044298U (en) | 1992-01-16 |
Family
ID=31556940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990044018U Pending JPH044298U (en) | 1990-04-26 | 1990-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH044298U (en) |
-
1990
- 1990-04-26 JP JP1990044018U patent/JPH044298U/ja active Pending
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