JPS59180186A - Earthquake-proof damper for piping - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a free V-tracking system for bending, torsion, inclination (and deviation) 11! This invention relates to an earthquake-resistant damper for damping, which has the functions of 1-way L5 and 10'I, maintains the shearing force made of viscous material in a perfect state, and acts effectively even during earthquakes.

Equipment such as nuclear power equipment, power generation equipment 11 "1゛I, Stone 41"・Right・11】Chemical equipment etc. are complex and have many layouts next to the central parts. ing. Due to its structure, this piping will cause complex vibrations during an earthquake, so its earthquake-resistant design has traditionally been limited to one static beam angle. ′? However, recently, dynamic analysis and dynamic seismic force have been required by the Kerr law, and dynamic analysis and dynamic seismic resistance have started to be carried out. .

There is piping.
Otsu-'70/g! The structure thereof is disclosed in No. 5 and Japanese Patent Application Laid-open No. S7-4790. rS:'h A long time ago◇
'i Ei for the adjacent piping element that increases the damping
, and between the pipe and its support σ)
-The configuration with C''L is sufficient to absorb vibrations such as rotation, bending, tilting, etc. that occur in the piping, and the combination of these vibrations.
- It is difficult to filter, especially in the case of large-diameter piping, and earthquake protection is insufficient. In addition, the latter is a two-dimensional structure σ) in which a viscoelastic body is directly fixed on the surface of the lower flange.
An anchor rond is installed between the bracket attached to the outer surface of the elastic body and the anchor, and it is difficult to apply this configuration to piping.)) Even if r1 is applied. It cannot be considered that the above-mentioned complex vibrations of piping can be sufficiently suppressed.

Also, recently Fig. 7 (A), CB) and Fig. 2 (A)
, Dimensions are shown in (B), ) A damper is being developed.

In Figures 1 (A) and (B), the entire tube side with a flat surface of tV, 2δ2, and 2δ2 is fixed to the support part at the bottom, and a film-like viscous restraint is formed. The PASO 1Jll is placed on the viscous substance receiving plate via the support plate S, and the PASO 1Jll is fixed on the support frame S. Note that Otsu indicates (1j'near; 179 parts of resistance, (). Viscous substance 3 has low fluidity (high viscosity).

, -21 is a flat fixed type resistor with a film-like viscous material "L'13" as a damper, which allows the viscous 11F film to freely move fA flJi against slow movement due to thermal expansion, contraction, etc. However, in case of severe vibrations such as vibrations from other shops, please use the book 1H1 [For 1' to fix the piping] and the piping section: 1. There is a drawback that the shear surface cannot be maintained due to complex deformations such as t1 bending and torsional inclination, and the rT'/JrV effect cannot be applied to vibrations.

? Figure 1 (A), (B)
B) Shows another example of the same principle as the seismic damper shown in Figure 7 (A).
, Similar to (B), the receiver 111 and γ are formed as flat plates with a smaller area than 2a, which means that, for example, when the movement of the pipe is large, the movement of the pipe is not restrained by the support ff114 (.However, Similarly to what was explained in FIGS. 1(A) and 1(B), this is also insufficient in dealing with complicated movement and deformation of the arrangement 1i.

In other words, - the above-mentioned plane-fixed seismic damper exhibits resistance to vibrations at high speeds such as earthquake vibrations, and due to this resistance, during an earthquake (C piping is placed at the support point). It is possible to hold the pipes fixed in place during an earthquake by dispersing the carts that are concentrated at the frame or foundation of the fixed point to support points equipped with seismic dampers placed between the fixed points. However, this plane-fixed seismic damper requires a variety of complex and unsuitable shapes. , since it is characterized by deformation and movement on the outside plane,
Various forces act on the viscous shear surface7, and it is extremely difficult, and in most cases nearly impossible, to maintain it in an ideal state.

The purpose of the present invention is to overcome the drawbacks of conventional handbooks, and to
Even if the shear surface is kept in an ideal state in the rotating state, and the ground is in a complex one-stroke motion, no unnecessary force will be applied to this shear surface, and the 7+1 ability to freely follow complex movement deformations and vibrations during earthquakes.

That is, the present invention relates to an earthquake-resistant damper for piping, in which an earthquake-resistant damper is attached to a flat plate having a pipe-side metal fitting on a support portion of the pipe and a viscous material tray facing the pipe-side metal fitting via a film-like viscous substance. The piping is characterized by the installation of a flexible metal with a flexible joint between the arrangement and the button side metal (4) and at least one of the viscous substance receiver and the support frame. It is an earthquake-resistant damper for use.

Next, the present invention will be explained based on examples and with reference to the drawings. 3(A) and 3(B) show a first embodiment of the present invention, in which a pipe side fitting λ having a flat plate 2a at the lower part is fixed to a supporting part of the pipe/tube, and a membrane-like structure is formed. Viscous poison 3
Place it on the viscous material tray via the duct. Otsu is the first man of the defense. This configuration is shown in FIG. 1(A).

This is similar to that explained by (13). In the present invention, the lower surface of the saucer q and the support pedestal S are connected to the flexible metal plate 10.
connected via. Jizai Zenken 10 has multiple support rods/
Q a, / Q b, / Q cworJLVc
I? , l are connected with joints //a, //b, and each end is fixed to the upper surface of the support frame S [■[ll].

FIGS. 9(A) and CB) show a second embodiment of the present invention, in which the pipe/pipe side metal, flat plate 2a, and t<
l = substance 3. Saucer, flexible bracket 10. The support frame S is the third
It is almost the same as that explained in FIG. Big look. Although these various formats are possible, which format to use is determined by considering the arrangement 13 and other conditions.

Figure S (A) and (B) are Figure 3 (A) and (B).
FIG. 9(A) is an explanatory diagram of the operation of the present invention explained in FIG.
When the rf/ is moved from the installed position of the dashed line to the position of the solid line in any direction, for example, horizontally, due to heat transfer, the pipe side fixed to the pipe/ and the flat plate no. A; moves and tilts. The saucer plate is mounted by a flexible metal fitting 10 having four flexible brackets / / a, , / / b. ．． Since it is connected to 3, the saucer plate tilts ↑+'' according to the movement and inclination of the side fitting λ. The shear plane of the viscoconal membrane 3 can be maintained in a substantially ideal state through the a.

FIG. S (I3) shows the case where the tube / is moved and tilted in the longitudinal direction from the position indicated by the chain line to the position indicated by the solid line. , the cliff 2a, and the ridge 2a are both inclined, so that the shearing of the viscous membrane t) J1 can be maintained in a substantially ideal state. In the same way as described above, the shear plane of the viscous membrane can be maintained against displacement in the other directions.

Figures FA+ and CB) show a third embodiment of the present invention, in which the rack is connected to the flat plate 2 through a flexible fitting /θa. The flat plate 2a is replaced by a saucer '%K through a film-like viscous substance 3, and the tray 'a and the support frame S are connected by a metal plate (↓10).These flexible metal fittings 10.10a are Its structure and operation are substantially the same as those explained in FIGS. 3(A) and 3(B) i; and FIGS. 3(A) and CB).

In this embodiment, the free gold μ/θa is one step below the other.

10 is disposed, so it can be accommodated in a wide range regardless of the amount of relative displacement between the mounting plate and the support frame.

FIG. 7 shows a fourth embodiment of the present invention. In this embodiment, the pipe/ is suspended from the upper support frame/S by a chain/7, etc.
Attach pipe side fittings to both sides, top and bottom of the pipe,
The receiver 1111'l is brought into contact with the tube-side metal fitting 1 via the sticky substance 3, and the receiver 1111'l is connected to the upper support pedestal 3 and the side support pedestal 3 via the flexible metal fitting 3. The effect of this configuration is also similar to the J=ff+, song embodiment.

Whether or not to use the degrees C. and deviations of each of these embodiments is determined by taking into account various conditions such as the size and weight of the counterfeit, the structure of the piping, the structure of the pedestal, and so on.

As explained above, the present invention combines a flexible metal fitting that connects a planar fixed type seismic damper flexible joint using a viscous substance, and uses this to support piping on a support frame. be.

In case of frL and iJ"L east one-y plane fixed type damper, amplitude and amplitude change suddenly and uncertainly due to complex deformation such as rotation, bending, twisting, and inclination of piping and earthquakes. Although the damper of the present invention did not have an effective effect against the vibration caused by the vibration, the damper of the present invention was installed between the fixed points of the piping. By doing so, it is possible to disperse the concentrated load on the frame or foundation at the fixed point, as well as to prevent the complicated deformation of piping as mentioned above, as well as to prevent
S'+Follow up freely even for famous movements; L
L, an approximately ideal state can be maintained without unnecessary force acting on the shear surface of the viscous membrane.

[Brief explanation of the drawing]

Figures 2 (A) and CB) are a side view and a vertical cross-sectional view of the horizontal leg of the embodiment of the fixed filter plane type Gunbar, and Figures 2 (A) and CB are the conventional (B) is a cross-sectional view and a KRIY cross-sectional view of another embodiment of the flat fixed damper used in the present invention. , Figure 9 Prisoner, (B)
is the second embodiment of the present invention ()) ft'li', iji
Figures (A) and (B) are cross-sectional views and longitudinal cross-sectional views for explaining the operation of the present invention, and Figures (A) and (B) are cross-sectional views of the present invention. A groove sectional view and a vertical sectional view of the third actual example, and FIG. 7 is a front view of the qth actual example of the unexploded Ski. C. ・Piping No. -Rest side metal fitting 2a...Flat
Plate 3... Viscous substance G... Viscous substance receiver 5 .
... Dustproof member 10 ... Free gold film / Oa
, /Ob, /Oc-i'Zi-,'jj'l
=//a, //b・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ River Universal joint patent applicant Chiyoda Corporation 11!1
Figure fs2V! 5 (1 Flash 480- (A) Fig. 5 (A) Fig. 6 Fig. 7

Claims (1)

[Claims] In the earthquake-resistant pumper for housing, f1γ) is attached to the piping support part.
side/＞ An earthquake-resistant damper equipped with l-4 and a viscous material 14 saucer that faces the moon through the pipe-side metal fitting and the viscous material 11 (goods) is placed between the flameproof and the pipe-side metal fitting. and an earthquake-resistant damper for piping, characterized in that a flexible metal plate with a /1 joint is attached to at least one side between the viscous material 11'J receiver 11)l and the support frame.