KR101717562B1 - Power generation equipment for vibration control smart damper made up of multi-axis - Google Patents

Abstract

The present invention relates to a vibration-control smart damper for a multi-axial power generation facility and, more specifically, to a vibration-control smart damper for a multi-axial power generation facility including a fixed pad coupled to shaped steel or a joint on a wall surface by a coupling means and a main damper on the center of the fixed pad. An internal part of the main damper is composed of a movement unit coupling joint, an outer frame, a movable piston, a movable polyurethane elastic member, a fixed polyurethane elastic member, an inner frame, and a fixed piston frame. The vibration-control smart damper includes a damper unit coupled by inserting a coupling shaft to the coupling joint positioned into the edge of the main damper and having an end composed of a first auxiliary damper coupled to the fixed damper, a second auxiliary damper, a third auxiliary damper, and a fourth auxiliary damper and a fixating unit coupled to the end of the damper unit by the movement unit coupling joint and including a circular fixating plate connecting the damper unit for damping vibration in all three axial directions. The vibration-control smart damper for a multi-axial power generation facility is capable of damping the vibration generated in a straight line direction to the three axial directions by being connected to the pipe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vibration damper for a power plant,

The present invention relates to a vibration control smart damper for a power generation facility comprising a plurality of shafts, and more particularly to a vibration damper for a vibration damper for a power generation facility, which comprises a fixed pad fastened to a joint of a section steel or a wall by fastening means, Wherein the interior of the main damper is composed of a moving part fastening joint and an outer frame, and the fastening joint located at the edge of the main damper is a fastening frame, a moving piston, a moving polyurethane elastic member, A damper part constituted by a first auxiliary damper, a second auxiliary damper, a third auxiliary damper, and a fourth auxiliary damper, the ends of which are fastened with the frame and the stationary piston shaft, And a circular fixing plate which is fastened by a joint and which connects a damper portion for attenuating vibrations in three axial directions The present invention relates to a smart damper that is connected to a pipeline and that damps vibration generated in a linear direction in three axial directions.

As the development of national industry accelerates, the demand for energy is soaring. As a result, power generation facilities are becoming large - capacity, multifunctional and intelligent, and it is required to secure power generation supply lines and to operate reasonable and safe facilities.

The above-mentioned power generation facilities generate numerous vibrations and noises due to the development of energy sources. This causes generation of industrial accidents due to aging of the power generation facilities, and greatly reduces power generation efficiency. Particularly, It is very difficult to predict the occurrence of vibration in the design stage and to reflect it in the design. It is very important to minimize the vibration generated in the piping, and the vibration problem of piping occurring during the operation of the power plant is mostly caused by the vibration , Which accumulates fatigue on pipelines and related equipment components, damaging the stress concentration. Repetitive stress due to vibration causes local fatigue failure of the piping joint system, which mainly concentrates stress, which in turn hinders the stability of the plant. do.

In the present power plant, when vibration problem of piping occurs, the rigid support is reinforced at the high vibration position to reduce the vibration first. However, this method is a simple method for forcibly restraining the pipe vibration. When applied to high temperature piping, A problem arises.

Therefore, a damper is used for buffering and dissipating shock or vibration energy that is installed between the structures and restoring the structure to the original position, and by using the friction generated when the rope moves the slot, energy A viscous damper that dissipates energy using the viscosity of the fluid, and an EDR damper that dissipates energy using friction between the wedge.

In recent years, in order to solve the above-mentioned troublesome and costly facilities, impossibility to withstand impact and load, a smart damper (No. 10-1407949), a smart spacer damper (Patent No. 10-2013- 0054828) have been introduced.

Korea Patent No. 10-1407949 Korean Patent Publication No. 10-2013-0054828.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the problems of the conventional art as described above, and it is an object of the present invention to provide a piping for use in a power generation facility capable of stably absorbing a dynamic load under a static load, It is necessary to develop a damper capable of controlling the vibration of the turbine and the generator installed in the power plant in addition to the piping. In case of a high impact load such as an earthquake, In general, a steel or a stainless steel spring is used for manifesting an elastic action of a supporter and a damper which are conventionally used, so that the load must not be excessive due to excessive weight, energy dissipation capacity should not be insufficient, In order to cope with various demand performance not only using It aims to provide a bit damper.

In order to accomplish the above object, the present invention provides a damper for a power plant,

The damper includes:

And a main damper 105 is positioned at the center of the fixing pad 190. The inside of the main damper 105 is connected to a connecting portion A fixed polyurethane elastic member 140b, an inner frame 150, and a fixed piston frame 160, which are connected to each other via a connecting rod 110, an outer frame 120, a floating piston 130, a moving polyurethane elastic member 140a, The first auxiliary damper 170 and the second auxiliary damper 170 are fixed to the fixing pad 190 by fastening the fastening shaft 165 with the fastening joint 115 located at the edge of the main damper 105, 175, a third auxiliary damper 180, and a fourth auxiliary damper 185, as shown in FIG.

And a fixing part 200 having both sides of a semicircular curved circular fixing plate 210 fastened to a distal end of the damper part 100 by a moving part fastening joint 110 and damping vibrations in three axial directions .

The main damper 105 is fastened to the fixing part 200 by the uppermost moving part fastening joint 110. The moving part fastening joint 100 is fitted to the outer frame 120, The fluidized piston 130 is rotated to be coupled to the fluid tightening joint 110 and the fluidized polyurethane elastic member 140a and the inner frame 150 are fixed to the fluid piston 130 inside the fixed piston frame 160, And the fixed polyurethane elastic member 140b are inserted in order to buffer the shaking of the pipe.

The first auxiliary damper 170, the second auxiliary damper 175, the third auxiliary damper 180 and the fourth auxiliary damper 185 are identical in structure to the main damper 105, The coupling shaft 165 is inserted into the coupling joint 115 located at the edge of the damper 105 and is fastened to the fixing pad 190 to support the impact of the main damper 105, .

The flowable polyurethane elastic member 140a is a pressurized polyurethane rubber material having heat resistance, abrasion resistance and corrosion resistance to the temperature change of the pipe, and when impact is applied to the pipe due to energy dissipation through restoring force and forced behavior performance Lt; / RTI >

The fixed polyurethane elastic member 140b is a pressurized polyurethane rubber material which buffers the impact of the floating polyurethane elastic member 140a through the inner frame 150 and flows fixedly or weakly.

The fastening joint 115 is made of stainless steel or a steel material and includes a main damper 105, a first auxiliary damper 170, a second auxiliary damper 175, a third auxiliary damper 180 and a fourth auxiliary damper 185 And is fastened by a fastening shaft 165, and is of a hinged shape which can be rotated to the left and right, thereby enabling movement change due to buffering.

The circular fixing plate 210 is semicircular so as to fix a circular shape in the form of a pipe, and after the pipe is fitted, both sides are fixed by fixing means.

As described above, the technical idea of the present invention can increase the frictional force of the damper by adding a magnetic force or an electromagnetic force body within a range that does not deviate from the solution, and the size of the circular fixing plate 210 can be changed according to the diameter of the pipe And it is needless to say that the number of auxiliary dampers can be changed as much as necessary depending on the specifications of the power generation facility.

The vibration control smart damper for a power generation system according to the present invention is not easy to fasten a connecting portion of a conventional damper to a piping. However, it is easy to fasten the damper to a jointing portion of a piping where stress is concentrated, It is possible to control the constant vibration of the equipment such as turbine, generator, etc., and even when a high impact load such as an earthquake occurs, buffering is smooth. Unlike the conventional short axis damper, By using a conventional non-spring elastic member, it is separated into a moving portion and a fixed portion. By using a polyurethane cushioning member which is in conformity with required performance and which is less costly to manufacture, there is a cost reduction effect. It is possible to install, and it has a high space utilization.

1 is a perspective view of a vibration control smart damper (A) for a power generation facility composed of multiple axes according to an embodiment of the present invention.
2 is an exploded view showing a main damper of a vibration control smart damper (A) for a power generation system composed of multiple axes according to an embodiment of the present invention.
FIG. 3 is a plan view of a vibration control smart damper A for a power generation facility having multiple axes according to an embodiment of the present invention.
4 is a cross-sectional view of a vibration control smart damper (A) for a power generation system composed of multiple axes according to an embodiment of the present invention.
5 is a cross-sectional detail view showing an auxiliary damper of a vibration control smart damper (A) for a power generation facility composed of multiple axes according to an embodiment of the present invention
6 is a right side view of a vibration control smart damper (A) for a power generation facility composed of multiple axes according to an embodiment of the present invention.
7 is an exploded view of a vibration control smart damper (A) for a power generation facility having multiple axes according to an embodiment of the present invention.
FIG. 8 is a diagram illustrating an example of using a vibration control smart damper A for a power generation facility having multiple axes according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a vibration control smart damper (A) for a power generation facility having multiple axes according to an embodiment of the present invention, FIG. 2 is a perspective view of a vibration control smart damper (A) FIG. 3 is a plan view of a vibration control smart damper A for a power generation system constituted by multiple axes according to an embodiment of the present invention. FIG. 4 is a cross- 5 is a detailed sectional view showing an auxiliary damper A of a vibration control smart damper for a power generation system constituted by multiple axes according to an embodiment of the present invention, and FIG. 6 is a cross- FIG. 7 is a right side view of a vibration control smart damper (A) for a power generation system constituted by multiple axes according to an embodiment of the present invention. And, Figure 8 is a use example of the power generation smart vibration control damper (A) consisting of a multi-axis for in accordance with an embodiment of the present invention.

In order to accomplish the above object, the present invention provides a damper for a power plant,

Referring to FIGS. 2 and 8, the damper includes a fixing pad 190 fastened to a joint of a section or a wall by fastening means, and a main damper 105 positioned at the center of the fixing pad 190, The inside of the main damper 105 is connected to the inside of the main damper 105 by means of the moving part fastening joint 110, the outer frame 120, the floating piston 130, the moving polyurethane elastic member 140a, the fixed polyurethane elastic member 140b, 150 and a fixed piston frame 160. A coupling shaft 165 is inserted and fastened by a fastening joint 115 located at an edge of the main damper 105 and a distal end is fastened to the fastening pad 190 And a damper unit 100 composed of a first auxiliary damper 170, a second auxiliary damper 175, a third auxiliary damper 180 and a fourth auxiliary damper 185.

Referring to FIG. 3, a circular fixing plate 210 fastened to the damper unit 100 at the end of the damper unit 100 to fasten the damper unit 100 to be damped in three axial directions And a fixing part 200 having both sides.

3, the main damper 105 is fastened to the fixing part 200 by the uppermost moving part fastening joint 110, and the moving part fastening joint 110 is fastened to the outer frame 120 And a fluidized piston 130 having a tab at its upper portion is rotated to be coupled to the fluid-tightening joint 110. A fluidized polyurethane elastic member 140a is attached to the fluidized piston 130 inside the fixed piston frame 160, The inner frame and the fixed polyurethane elastic member 140b are inserted in order to buffer the fluctuation of the pipe.

3 and 6, the first auxiliary damper 170, the second auxiliary damper 175, the third auxiliary damper 180 and the fourth auxiliary damper 185 are connected to the main damper 105 The end of the main damper 105 is fastened to the fixing pad 190 and the main damper 105 is fastened to the main damper 105. [ To dissipate the impact in four directions.

2, the flexible polyurethane elastic member 140a is a pressurized polyurethane rubber material having heat resistance, abrasion resistance and corrosion resistance at the temperature change of the pipe, and is made of energy dissipation through restoring force and forced behavior performance It flows when an impact is applied to the pipe.

3, the fixed polyurethane elastic member 140b is a pressurized polyurethane rubber material, which cushions the impact of the movable polyurethane elastic member 140a through the inner frame 150, Or weakly.

The main damper 105 is connected to the piping and attenuates vibrations generated in the linear direction. The first damper 105 is coupled to the main damper 105 and the first auxiliary damper 170, the second auxiliary damper 175, A multi-axis smart damper (not shown) capable of damping vibrations in all directions generated in the piping by acting as a sub damper when the third and fourth auxiliary dampers 180 and 185 are fastened to the fixing pads 190 A), and the main damper (105) is provided with a movable polyurethane elastic member (140a) and a fixed polyurethane elastic member (140b) inserted therein to provide restoration capability through bidirectional movement, and the movable polyurethane elastic member 140a and the fixed polyurethane elastic member 140b are pre-compressed.

In addition, the magnet body or the electromagnetic force body can be assembled or inserted into the stationary piston frame 160 through a plurality of holes, and the magnet body and the flow piston 130 maintain a certain distance, Thereby generating a magnetic force to be attached to the iron, which is a material of the piston 130, thereby increasing the frictional force and increasing the buffering efficiency.

3, the coupling joint 115 is made of stainless steel or a steel material and includes a main damper 105, a first auxiliary damper 170, a second auxiliary damper 175, a third auxiliary damper 180, Is fitted in the groove of the end of the fourth auxiliary damper (185), is fastened by the coupling shaft (165), and is in the form of a hinge rotatable in the left and right direction.

Referring to FIG. 4, the circular fixing plate 210 is semicircular so as to fix a circular shape in the form of a pipe, and the pipe is fitted, and then both sides are fixed by fixing means.

The effect of the present invention is that it is not easy to fasten the connecting portion of the conventional damper to the piping, but it is easy to fasten the jointing portion of the piping where the stress is concentrated, It is possible to control the vibration of the shock absorber, and even when a high impact load such as an earthquake occurs, the shock absorber is smooth. By applying the multiple shafts differently from the conventional short shaft dampers, excessive weight and energy dissipation capability are increased, By using the non-elastic member, it is separated into the moving part and the fixed part, and it is possible to reduce the cost by using the polyurethane cushioning material which corresponds to the required performance and the manufacturing cost is low, and it is possible to install plural pieces in the pipe, There are advantages.

As described above, the technical idea of the present invention can increase the frictional force of the damper by adding a magnetic force member or an electromagnetic force member within a range that does not deviate from the solution, and the size of the circular fixing plate can be changed according to the diameter of the pipe, It goes without saying that the number of dampers can be changed as much as the specifications of the power generation facility.

100: damper part 160: fixed piston frame
105: main damper 165: fastening shaft
110: moving part fastening joint 170: first auxiliary damper
115: fastening joint 175: second auxiliary damper
120: outer frame 180: third auxiliary damper
130: Flowing piston 185: Fourth auxiliary damper
140a: Flowable polyurethane elastic member 190: Fixing pad
140b: fixed polyurethane elastic member 200: fixing portion
150: inner frame 210: circular fixing plate
A: Smart damper 220: Fixing means

Claims (7)

A damper for a power generation facility for reducing piping vibration,
The damper includes:
And a main damper is located at the center of the fixing pad, and the inside of the main damper is connected to a connecting portion of the connecting portion of the connecting portion, the outer frame, the moving piston, the moving polyurethane elastic member A first auxiliary damper composed of a fixed polyurethane elastic member, an inner frame, and a fixed piston frame, the coupling shaft being inserted and fastened by a coupling joint located at an edge of the main damper, A damper unit including a damper, a third auxiliary damper, and a fourth auxiliary damper; And
And a fixing portion having a circular fixing plate fastened to the damper portion at the distal end thereof by a moving portion fastening joint and fastening the damper portion for attenuating all three-
Wherein the main damper is fastened to the fixed portion by the uppermost moving part fastening joint, the moving part fastening joint is fitted to the outer frame, the flow piston with the tab is rotated to be coupled to the moving part fastening joint, Wherein the movable polyurethane elastic member, the inner frame, and the fixed polyurethane elastic member are sequentially inserted into the flow piston inside the piston frame to buffer the fluctuation of the piping. delete The method according to claim 1,
The first auxiliary damper, the second auxiliary damper, the third auxiliary damper, and the fourth auxiliary damper coincide with the structure of the main damper and are miniaturized, and the coupling shaft is inserted into the coupling joint located at the edge of the main damper, And the end of the vibration damper is fastened to the fixing pad to assist the impact of the main damper to dissipate in four directions. The method according to claim 1,
The flowable polyurethane elastic member is a pressurized polyurethane rubber material having heat resistance, abrasion resistance and corrosion resistance to changes in the pipe temperature, and flows when an impact is applied to the pipe due to energy dissipation through restoring force and forced behavior performance Wherein the vibration damper is a vibration damper. The method according to claim 1,
Characterized in that said fixed polyurethane elastic member is a pressurized polyurethane rubber material which cushions the shock of said flexible polyurethane elastic member through the inner frame and is fixed or weakly flowable. Vibration control smart damper. The method according to claim 1,
The fastening joint is made of stainless steel or steel and is fastened to the groove of the end of the main damper, the first auxiliary damper, the second auxiliary damper, the third auxiliary damper and the fourth auxiliary damper and is fastened with a fastening shaft, Wherein the vibration damper is a hinge type, and enables movement change due to buffering. The method according to claim 1,
Wherein the circular fixing plate is semi-circular so as to fix a circular shape in the form of a pipe, and the pipe is fitted and fixed on both sides by fixing means.

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