JPH0425543Y2 - - Google Patents
Info
- Publication number
- JPH0425543Y2 JPH0425543Y2 JP1985117826U JP11782685U JPH0425543Y2 JP H0425543 Y2 JPH0425543 Y2 JP H0425543Y2 JP 1985117826 U JP1985117826 U JP 1985117826U JP 11782685 U JP11782685 U JP 11782685U JP H0425543 Y2 JPH0425543 Y2 JP H0425543Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- vibration isolator
- hydraulic vibration
- control valve
- valve device
- 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.)
- Expired
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
Landscapes
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、原子力発電所等において、蒸気発
生器等の機器を耐震的に支持するために、被支持
体である機器等と支持体である構築物等との間に
介設される油圧防振器の改良に関するものであ
る。[Detailed description of the device] (Industrial application field) This device is designed to seismically support equipment such as steam generators in nuclear power plants, etc. by connecting supported equipment and supports. This invention relates to the improvement of a hydraulic vibration isolator installed between a certain structure or the like.
（従来の技術）
従来、第６図に示すように、大型、大重量の機
器Ａを耐震的に支持するために、それと構築物Ｂ
との間に、複数の油圧防振器２１を並列的に介設
していた。そして、この場合、各防振器２１は、
別個独立したものであり、夫々が個別に制御弁装
置２２を持つていた。(Prior Art) Conventionally, as shown in Fig. 6, in order to seismically support a large, heavy equipment A, it and a structure B have been used.
A plurality of hydraulic vibration isolators 21 were interposed in parallel between the two. In this case, each vibration isolator 21 is
They were separate and independent, and each had its own control valve device 22.
（考案が解決しようとする問題点）
上記従来の支持構造においては、各制御弁装置
２２の制作精度にバラツキがあるため、弁が油通
路を閉じるために必要なピストンの移動速度が制
御弁装置２２によつて異なり、また、機器Ａが構
築物Ｂに対して平行に振動することはほとんどな
いため、振動によつて生じる各防振器２１に対す
る入力変位量が異なる結果、防振器２１，２１間
に動作のバラツキが生じ、例えば、ある防振器２
１に過大な油圧がかかり、これによつてこの防振
器２１が破壊され、あるいは、付設リリーフ弁が
開くことによつて拘束力を失うことがある。ま
た、油の圧縮が、各防振器２１，２１間で均一
に、十分に行われないために、台数に匹敵するほ
どの十分な防振効果が得られないことがある、等
の問題点がある。(Problems to be Solved by the Invention) In the conventional support structure described above, since there are variations in the manufacturing accuracy of each control valve device 22, the movement speed of the piston required for the valve to close the oil passage is 22, and since equipment A rarely vibrates parallel to structure B, the amount of input displacement to each vibration isolator 21 caused by vibration is different, and as a result, the vibration isolators 21, 21 For example, some vibration isolators 2
Excessive hydraulic pressure is applied to the vibration isolator 21, which may destroy the vibration isolator 21 or cause the attached relief valve to open, thereby causing a loss of binding force. In addition, there are other problems, such as the fact that the oil is not compressed uniformly and sufficiently between the vibration isolators 21, 21, so it may not be possible to obtain a sufficient vibration damping effect to match the number of vibration isolators 21, 21. There is.
この考案は、上記従来の問題点を解決し、複数
の防振器が、機器の振動に対して同じ条件で、有
効に作用するようにしたものである。 This invention solves the above-mentioned conventional problems and allows a plurality of vibration isolators to effectively act on vibrations of equipment under the same conditions.
（問題点を解決するための手段）
この考案においては、上記従来の問題点を解決
するため、支持体Ｂと被支持体Ａとの間に並列的
に介設された複数の油圧防振器本体１と、これら
の油圧防振器本体１のピストン３により仕切られ
るシリンダ２内の二つの油室２ａ，２ｂの同方向
に位置するもの同士を夫々互いに並列に連通させ
るための共通の二つの送油管４ａ，５ａ及びこれ
から夫々分岐する二つの送油管４ｂ，５ｂと、こ
の共通の二つの送油管４ａ，５ａが両端に接続さ
れ、これらの送油管４ａ，５ａ内の急激な油の流
れを感知して流路を遮断する制御弁装置６とを具
備させて多連式油圧防振器を構成した。(Means for Solving the Problems) In this invention, in order to solve the above conventional problems, a plurality of hydraulic vibration isolators are provided in parallel between the support body B and the supported body A. The main body 1 and two common oil chambers 2a and 2b located in the same direction in the cylinder 2 partitioned by the piston 3 of the hydraulic vibration isolator main body 1 communicate in parallel with each other. The oil pipes 4a, 5a and the two oil pipes 4b, 5b branching from these pipes are connected to both ends of the two common oil pipes 4a, 5a to prevent rapid oil flow within these pipes 4a, 5a. A multiple hydraulic vibration isolator is constructed by including a control valve device 6 that senses and shuts off the flow path.
（作用）
地震等により、支持体Ｂと被支持体Ａとの間に
急激な相対変位が生じると、各油圧防振器本体１
内のピストン３が移動し、各油圧防振器本体１内
の油は制御弁装置６を介して流通しようとする
が、この制御弁装置６は、急激な油の流通を感知
して動作し、油通路を閉じる。すると、全ての油
圧防振器本体１内のいずれか一方の油室２ａ，２
ｂの油圧が一斉に高まり、全油圧防振器本体１が
共働して被支持体Ａの振動を拘束する。(Function) When a sudden relative displacement occurs between the supporting body B and the supported body A due to an earthquake, etc., each hydraulic vibration isolator body 1
The piston 3 inside moves, and the oil inside each hydraulic vibration isolator body 1 tries to flow through the control valve device 6, but this control valve device 6 senses the sudden flow of oil and operates. , close the oil passage. Then, either one of the oil chambers 2a, 2 in all the hydraulic vibration isolator main bodies 1
The hydraulic pressure of b increases all at once, and the all-hydraulic vibration isolator main body 1 works together to restrain the vibration of the supported body A.
被支持体Ａが支持体Ｂに対して平行状態をくず
して変位し、従つて、各油圧防振器本体１のピス
トン３の変位量が異なる場合にも、各油圧防振器
本体１の油室２ａ，２ｂが、送油管４ａ，５ａ及
び送油管４ｂ，５ｂを介して相互に連通している
ので、各油室２ａ，２ｂ内の油圧は異ならず、各
油圧防振器本体１は同一の変位拘束力を発揮す
る。 Even if the supported body A breaks the parallel state with respect to the support body B and is displaced, and therefore the amount of displacement of the piston 3 of each hydraulic vibration isolator body 1 is different, the oil of each hydraulic vibration isolator body 1 Since the chambers 2a and 2b communicate with each other via the oil feed pipes 4a and 5a and the oil feed pipes 4b and 5b, the oil pressure in each oil chamber 2a and 2b is not different, and each hydraulic vibration isolator body 1 is the same. exerts a displacement restraint force of
これに対して、支持体Ｂと被支持体Ａとの間
に、熱膨張等に伴う緩慢な変位が生じた場合に
は、油の流通が緩慢であるために、制御弁装置６
は動作せず、油は抵抗なく制御弁装置６を通過す
る。従つて、そのような変位はほとんど抵抗なく
許容される。 On the other hand, if a slow displacement occurs between the support body B and the supported body A due to thermal expansion, etc., the flow of oil is slow, so the control valve device 6
does not operate and the oil passes through the control valve device 6 without resistance. Therefore, such displacements are allowed with little resistance.
（実施例）
第１図は、本考案の概念図である。第１図にお
いて、被支持体Ａと支持体Ｂとの間に、複数の油
圧防振器本体１が並列的に介設されている。油圧
防振器本体１は、シリンダ２内にピストン３を挿
入し、ピストン３によつてシリンダ２内の両側に
二つの油室２ａ，２ｂを形成したもので、夫々ピ
ストンロツド３ａの先端を被支持体Ａに連結し、
シリンダ２を支持体Ｂに連結してある。(Example) FIG. 1 is a conceptual diagram of the present invention. In FIG. 1, a plurality of hydraulic vibration isolator bodies 1 are interposed in parallel between a supported body A and a support body B. The hydraulic vibration isolator main body 1 has a piston 3 inserted into a cylinder 2, and the piston 3 forms two oil chambers 2a and 2b on both sides of the cylinder 2, and the tip of the piston rod 3a is supported by the piston 3. connected to body A,
A cylinder 2 is connected to a support B.
各油圧防振器本体１の一方の油室２ａは、送油
管４ａ，４ｂにより互いに連通され、また、他方
の油室２ｂは、他の送油管５ａ，５ｂにより互い
に連通されている。 One oil chamber 2a of each hydraulic vibration isolator main body 1 is communicated with each other through oil feed pipes 4a, 4b, and the other oil chamber 2b is communicated with each other through another oil feed pipe 5a, 5b.
各油圧防振器本体１の油室２ａを連通する送油
管４ａは、制御弁装置６の一端に接続され、他の
各油室２ｂを連通する送油管５ａは、制御弁装置
６の他端に接続されている。 The oil feed pipe 4a communicating the oil chambers 2a of each hydraulic vibration isolator body 1 is connected to one end of the control valve device 6, and the oil feed pipe 5a communicating each other oil chamber 2b is connected to the other end of the control valve device 6. It is connected to the.
第２乃至５図には、この考案のさらに具体的な
実施例を示してある。 FIGS. 2 to 5 show more specific embodiments of this invention.
この実施例は、被支持体Ａたる蒸気発生器Ｇを
支持する場合のもので、蒸気発生器Ｇの一側面と
支持体Ｂである構築物Ｓとの間に複数の油圧防振
器本体１が並列的に介設されている。即ち、油圧
防振器本体１のピストンロツド３ａが蒸気発生器
Ｇに、またシリンダ２が構築物Ｓに、夫々連結さ
れている。 This embodiment is for supporting a steam generator G, which is a supported body A, and a plurality of hydraulic vibration isolator bodies 1 are installed between one side of the steam generator G and a structure S, which is a support B. are arranged in parallel. That is, the piston rod 3a of the hydraulic vibration isolator main body 1 is connected to the steam generator G, and the cylinder 2 is connected to the structure S, respectively.
シリンダ２の一方の油室２ａ（第２乃至５図に
は図示せず。）は、一方の共通の送油管４ａ及び
これから分岐した送油管４ｂにより互いに連通さ
れ、また、他方の油室２ｂ（第２乃至５図には図
示せず。）は、他方の共通の送油管５ａ及びこれ
から分岐した送油管５ｂにより互いに連通されて
いる。 One oil chamber 2a (not shown in FIGS. 2 to 5) of the cylinder 2 is communicated with each other by one common oil feed pipe 4a and an oil feed pipe 4b branched from this, and the other oil chamber 2b ( (not shown in FIGS. 2 to 5) are communicated with each other by the other common oil feed pipe 5a and an oil feed pipe 5b branched from this.
送油管４ａは、制御弁装置６の一端に、また、
送油管５ａは、制御弁装置６の他端に夫々接続さ
れている。 The oil pipe 4a is connected to one end of the control valve device 6, and
The oil pipes 5a are connected to the other ends of the control valve device 6, respectively.
この実施例において、制御弁装置６は、第５図
の如く、相対向して配置された一対のポペツト弁
７，７と、両ポペツト弁７，７の手前に夫々の隣
接して配置された一対のリリーフ弁８，８とを一
体に組み込んで成る。そして、この制御弁装置６
の両ポペツト弁７，７間には送油管９を介してオ
イルリザーバ１０が連通されている。 In this embodiment, as shown in FIG. 5, the control valve device 6 includes a pair of poppet valves 7, 7 disposed opposite to each other, and a pair of poppet valves 7, 7 disposed adjacent to each other in front of both poppet valves 7, 7. A pair of relief valves 8, 8 are integrally assembled. And this control valve device 6
An oil reservoir 10 is communicated between both poppet valves 7, 7 via an oil feed pipe 9.
次に、この実施例の作用を説明する。 Next, the operation of this embodiment will be explained.
地震等により、構築物Ｓと蒸気発生器Ｇとの間
に急激な相対変位が生じると、各油圧防振器本体
１内のピストン３（第２乃至５図には図示せず。）
が移動し、各油圧防振器本体１内の油は送油管４
ａ，４ｂ，５ａ，５ｂ内をその途上の制御弁装置
６を介して流通しようとするが、この制御弁装置
６内のいずれかのポペツト弁７が油圧により動作
して油通路を閉じる。すると、全ての油圧防振器
本体１内のいずれか一方の油圧室２ａ，２ｂの油
圧が一斉に高まり、全油圧防振器本体１が共働し
て蒸気発生器Ｇの振動を拘束する。 When a sudden relative displacement occurs between the structure S and the steam generator G due to an earthquake or the like, the piston 3 in each hydraulic vibration isolator body 1 (not shown in FIGS. 2 to 5)
moves, and the oil in each hydraulic vibration isolator body 1 is transferred to the oil pipe 4.
A, 4b, 5a, 5b is attempted to flow through the control valve device 6 on the way, but one of the poppet valves 7 in this control valve device 6 is operated by hydraulic pressure to close the oil passage. Then, the oil pressure in either one of the hydraulic chambers 2a, 2b in all the hydraulic vibration isolator bodies 1 increases all at once, and all the hydraulic vibration isolator bodies 1 work together to restrain the vibrations of the steam generator G.
蒸気発生器Ｇが構築物Ｓに対して平行状態をく
ずして変位し、従つて、各油圧防振器本体１のピ
ストン３の変位量が異なる場合にも、第１図に示
す如く、各油圧防振器本体１の油室２ａ，２ｂ
が、送油管４ａ，４ｂ，５ａ，５ｂにより相互に
連通しているので、各油室２ａ，２ｂ内の油圧は
異ならず、各油圧防振器本体１は同様の変位拘束
力を発揮する。 Even if the steam generator G is displaced out of parallel to the structure S, and therefore the amount of displacement of the piston 3 of each hydraulic vibration isolator main body 1 is different, as shown in FIG. Oil chambers 2a and 2b of the shaker body 1
However, since the oil chambers 2a, 2b communicate with each other through the oil feed pipes 4a, 4b, 5a, and 5b, the oil pressure in each oil chamber 2a, 2b does not differ, and each hydraulic vibration isolator main body 1 exerts the same displacement restraining force.
蒸気発生器Ｇの変位に伴う油圧防振器本体１内
の油圧の高まりが過剰である場合には、いずれか
のリリーフ弁８が流路を開いて外気に通じ、装置
の破壊を防止する。 If the hydraulic pressure inside the hydraulic vibration isolator main body 1 increases excessively due to the displacement of the steam generator G, one of the relief valves 8 opens a flow path to communicate with the outside air, thereby preventing destruction of the device.
油室２ａ，２ｂの容積が異なるために、ピストン
３の移動に伴う油の流入流出量が相互に異なる
が、この場合の油の過不足分は、オイルリザーバ
１０に出入りする油により補われる。Since the volumes of the oil chambers 2a and 2b are different, the amount of oil inflow and outflow due to the movement of the piston 3 is different from each other.
これに対して、構築物Ｓと蒸気発生器Ｇとの間
に、熱膨張等に伴う緩慢な変位が生じた場合に
は、油の流通が緩慢であるために、制御弁装置６
は動作せず、油は抵抗なく制御弁装置６を通過す
る。 On the other hand, if a slow displacement occurs between the structure S and the steam generator G due to thermal expansion, etc., the flow of oil is slow, so the control valve device 6
does not operate and the oil passes through the control valve device 6 without resistance.
従つて、そのような変位はほとんど抵抗なく許
容され、蒸気発生器Ｇに無理な応力を与えること
がない。 Therefore, such displacement is allowed with almost no resistance, and no undue stress is applied to the steam generator G.
（考案の効果）
以上説明してきたように、この考案において
は、支持体Ｂと被支持体Ａとの間に並列的に介設
された複数の油圧防振器本体１と、これらの油圧
防振器本体１のピストン３により仕切られるシリ
ンダ２内の二つの油室２ａ，２ｂの同方向に位置
するもの同士を夫々互いに並列に連通させるため
の共通の二つの送油管４ａ，５ａ及びこれから
夫々分岐する二つの送油管４ｂ，５ｂと、この共
通の二つの送油管４ａ，５ａが両端に接続され、
これらの送油管４ａ，４ｂ，５ａ，５ｂ内の急激
な油の流れを感知して流路を遮断する制御弁装置
６とを具備させて多連式油圧防振器を構成したた
め、所望数の油圧防振器本体１をして、被支持体
Ａのどのような振動に対しても常に同じ条件で、
有効に防振作用を行わせることができ、また、制
御弁装置６を一つにして、装置の簡略化を図るこ
とができる、という効果を有する。(Effects of the invention) As explained above, in this invention, a plurality of hydraulic vibration isolator bodies 1 are interposed in parallel between the supporting body B and the supported body A, and these hydraulic vibration isolators are Two common oil feed pipes 4a, 5a for connecting the two oil chambers 2a, 2b located in the same direction in the cylinder 2 partitioned by the piston 3 of the vibrator body 1 in parallel with each other, and from there, respectively. The two branching oil pipes 4b, 5b and the two common oil pipes 4a, 5a are connected at both ends,
Since the multiple hydraulic vibration isolator is equipped with a control valve device 6 that senses the rapid flow of oil in these oil pipes 4a, 4b, 5a, and 5b and shuts off the flow path, it is possible to The hydraulic vibration isolator main body 1 is always under the same conditions against any vibration of the supported body A.
This has the effect that the vibration damping effect can be effectively performed, and that the control valve device 6 can be integrated into one, thereby simplifying the device.
第１図は本考案の概念図、第２乃至５図は本考
案の実施例を示すもので、第２図は平面図、第３
図は正面図、第４図は側面図、第５図は制御弁装
置の縦断正面図、第６図は従来例の概念図であ
る。
１……油圧防振器本体、２ａ，２ｂ……油室、
６……制御弁装置、Ａ……被支持体、Ｂ……支持
体。
Figure 1 is a conceptual diagram of the present invention, Figures 2 to 5 show examples of the invention, Figure 2 is a plan view, and Figure 3 is a plan view.
The figure is a front view, FIG. 4 is a side view, FIG. 5 is a longitudinal sectional front view of the control valve device, and FIG. 6 is a conceptual diagram of a conventional example. 1... Hydraulic vibration isolator main body, 2a, 2b... Oil chamber,
6...Control valve device, A...Supported body, B...Support body.
Claims (1)
複数の油圧防振器本体と、これらの油圧防振器本
体のピストンにより仕切られるシリンダ内の二つ
の油室の同方向に位置するもの同士を夫々互いに
並列に連通させるための共通の二つの送油管及び
これから夫々分岐する二つの送油管と、この共通
の二つの送油管が両端に接続され、送油管内の急
激な油の流れを感知して流路を遮断する制御弁装
置とを具備したことを特徴とする多連式油圧防振
器。 Multiple hydraulic vibration isolator bodies interposed in parallel between the supporting body and the supported body, and two oil chambers located in the same direction in the cylinder partitioned by the pistons of these hydraulic vibration isolator bodies. These two common oil pipes are connected to both ends to prevent sudden oil leakage in the oil pipes. A multiple hydraulic vibration isolator characterized by comprising a control valve device that senses a flow and shuts off a flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985117826U JPH0425543Y2 (en) | 1985-07-31 | 1985-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985117826U JPH0425543Y2 (en) | 1985-07-31 | 1985-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6225341U JPS6225341U (en) | 1987-02-16 |
| JPH0425543Y2 true JPH0425543Y2 (en) | 1992-06-18 |
Family
ID=31003702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985117826U Expired JPH0425543Y2 (en) | 1985-07-31 | 1985-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425543Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2958730B2 (en) * | 1992-11-30 | 1999-10-06 | 有限会社サンコーエンジニアリング | Machine support device that generates vibration and shock |
-
1985
- 1985-07-31 JP JP1985117826U patent/JPH0425543Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6225341U (en) | 1987-02-16 |
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