KR102313841B1 - High Temperature Damper - Google Patents

Abstract

The present invention relates to a damper for high temperature, and more specifically, to a damper for high temperature, wherein the damper is mounted on a pipe for transporting the exhaust gas of a ship or a power plant to control fluid at high temperature, a blade is arranged while being eccentric by a determined distance from a rotational axis to prevent the interference of operation and leakage caused by thermal expansion, and a sealing unit is arranged to be parallel in contact with a body seat with the blade closed to minimize the leakage of fluid at high temperature and to maintain airtightness. According to the present invention, comprised are: a valve body connected to a pipeline; a rotational axis having both ends combined inside the valve body; a blade arranged at the rotational axis while being separated and eccentric by a determined interval to be rotated by a determined angle inside the valve body by the rotation of the rotational axis; a body seat arranged on the inner surface of the valve body and formed at a determined height on the same line with the blade, with the blade closed; and a sealing unit composed of a plurality of pieces, and arranged to allow one side to be in contact adjacently, part thereof attached to the circumference of the body seat and part thereof attached to the circumference of the blade.

Description

High Temperature Damper

The present invention relates to a damper for high temperature, and more particularly, as a damper mounted on a pipe through which exhaust gas of a ship or power plant is transported to control a high-temperature fluid, and blade to prevent interference and leakage of operation due to thermal expansion A high-temperature damper that can minimize leakage of high-temperature fluid and maintain airtightness by eccentrically arranged at a certain distance from the rotating shaft, and placing the sealing unit in parallel with the body sheet in the closed state of the blade. is about

In general, a butterfly valve is disposed on a conduit for moving a fluid to selectively block the flow of the fluid, and as shown in FIG. 1 , a cylindrical valve body 10 connected to the conduit and the valve body 10 ) is composed of a disk-shaped blade 20 that is rotatably axially installed in the interior, and a driving device (not shown) for rotating the blade 20 .

According to this butterfly valve, by rotating the blade 20 using a driving device, it is operated in such a way that the flow path formed in the valve body 10 is opened/blocked. In such a butterfly valve, the flow of fluid is completely The airtightness between the inner peripheral surface of the valve body 10 and the outer periphery of the blade 20 acts as a very important factor in order to block it.

Therefore, in order to improve the airtightness, various types of sealing means have been provided in the prior art, and as one of them, as shown in FIG. There is a method of installing the seat ring 22 in contact with the body sheet 12 in a state in which the blade 20 is closed on the outer periphery of the blade 20 .

On the other hand, according to this prior art, in order to obtain a sealing effect, the amount of the seat ring 22 in contact with the body sheet 12 should be increased and at the same time, the seat ring 22 and the body sheet 12 should be in close contact with a strong pressure. .

Therefore, the seat ring 22 is easily damaged by a relatively high frictional force during the opening and closing operation of the blade 10, causing water leakage over time, and due to friction between the seat ring 22 and the body sheet 12 . There was a problem in that the operation of the blade 10 was not smooth.

In order to solve this problem, Prior Document 1 discloses a double-blade valve that is provided with a double-structured blade and a double-structured sealing rim in surface contact therewith, thereby enhancing sealing properties and facilitating the operation of the blade.

However, in Prior Document 1, when a foreign material is introduced between the double structure blade and the double structure sealing rim in surface contact and is caught inside, the entire dual structure blade is not closed due to the nature of the blade provided as a single flat plate, so that the flow path is blocked. There is a problem that it is difficult to completely seal.

In addition, since the left and right sealing rims provided on the valve body are not provided in a straight line with the blades, but are spaced apart from each other about the rotation axis, many difficulties occur in manufacturing the sealing rims provided on the valve body.

Republic of Korea Patent Registration No. 10-0702209 (2007.03.26.) Republic of Korea Patent Registration No. 10-1461255 (2014.11.06.)

An object of the present invention was devised to solve the above conventional problems, and the blades are arranged eccentrically from the rotation axis by a certain distance, and the arrangement of the sealing unit in the closed state of the blades is arranged so as to be in contact with the body sheet in parallel, some is disposed along the front circumference of the blade, and part is attached to the circumference of the body sheet, to provide a damper for high temperature so that the airtightness between the blade and the body sheet is maintained in a closed state of the blade.

In addition, in order to solve the problem of the disk sticking to the sheet due to thermal expansion at high temperature, as the blade indirectly contacts the body sheet by the sealing unit, even if the thermal expansion of the metal occurs due to prolonged exposure to a high temperature environment, the An object of the present invention is to provide a damper for high temperature that does not interfere with operation and has improved operational stability.

In addition, the body seat provided in the valve body is located on the same line as the blade in a closed state to solve the inconvenience of the work process in the process of welding the body seat to the valve body, and to further improve the sealing performance. will provide

Finally, the sealing unit is provided in a plurality of pieces so that only the damaged part can be easily replaced when repair and replacement are required, and it is provided so that it can be easily separated and combined by fastening the bolts during repair.

Objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

According to the present invention, in order to achieve the above object, according to the present invention, a valve body connected to a conduit; and a rotation shaft having both ends coupled to the valve body; A blade rotating at a predetermined angle within the valve body; and a body sheet provided on the inner surface of the valve body, the body sheet being formed at a constant height on the same line as the blade in a closed state of the blade; and a plurality of pieces, It is characterized in that it includes; a sealing unit disposed so that one side is adjacent, a portion is attached to the circumference of the body sheet around the rotation axis, and a sealing unit is attached to the circumference of the blade in part.

In addition, the sealing unit is provided with a plurality of pieces of a rhombus shape with an upper side longer than the lower side, and a first sealing unit coupled with bolts along the front periphery of the body sheet on the left side with respect to the rotation axis, and the rotation shaft It is characterized in that it is provided as a second sealing unit coupled along the front circumference of the right side of the blade based on the .

In addition, the sealing unit is disposed so that both ends of the second sealing unit are in close contact with one side of the first sealing unit when the blade rotated with respect to the rotation axis is moved to the closed position, the blade is closed It is characterized in that the sealing unit is arranged in a plane in front of the body sheet in the state of

In addition, the sealing unit is provided with at least one first through-hole penetrating the inside, wherein the first through-hole is formed on an upper side of the first sealing unit and a lower side of the second sealing unit, respectively, It is characterized in that it is coupled to the body sheet corresponding to the first through hole and a first fastening groove formed along the circumference of the blade by bolting.

In addition, the sealing unit is provided to be spaced apart from the first through hole, and a sealing member insertion groove which is provided long in the longitudinal direction is provided on the inner surface, and the rope seal inserted into the sealing member insertion groove is provided in the body sheet. It is characterized in that it is provided so as to further improve sealing performance by contacting one side and one side of the blade, respectively.

In addition, the sealing unit is characterized in that it is provided with a reinforcing cover attached to the front surface of the sealing unit to be attached to the sealing unit, so as to further improve the airtightness of the joint by sealing between the adjacent sealing units.

According to the damper for high temperature according to the present invention, the blades are arranged eccentrically from the rotation shaft by a certain distance, and the arrangement of the sealing unit is arranged in parallel with the body sheet in the closed state of the blades, but some are arranged along the front circumference of the blade Arranged, and part is attached to the periphery of the body sheet, has the effect of maintaining the airtightness between the blade and the body sheet in a closed state of the blade.

In addition, in order to solve the problem of the disk sticking to the sheet due to thermal expansion at high temperature, as the blade indirectly contacts the body sheet by the sealing unit, even if the thermal expansion of the metal occurs due to prolonged exposure to a high temperature environment, the It does not interfere with operation, and has the effect of improved operation stability.

In addition, the sealing unit is provided in a plurality of pieces to facilitate replacement of only the damaged part when repair and replacement are required, and has the effect of enabling easy separation and coupling by fastening bolts during repair.

1 is a perspective view showing a butterfly valve according to the prior art.
Figure 2 is a cross-sectional view showing the airtight structure of the blade in the butterfly valve according to the prior art.
3 is a perspective view showing an open state of the damper for high temperature according to a preferred embodiment of the present invention.
4 is a perspective view showing a closed state of the damper for high temperature according to a preferred embodiment of the present invention.
5 is a perspective view showing a sealing unit respectively attached to a blade and a body sheet according to a preferred embodiment of the present invention.
6 is an enlarged view of FIG. 5 to which a sealing unit according to a preferred embodiment of the present invention is attached.
Fig. 7 is a perspective view of the damper for high temperature when viewed from the opposite direction of Fig. 6;
8 is a photograph showing a state in which a rope seal is mounted in a sealing member insertion groove according to a preferred embodiment of the present invention.
9 is a plan view showing the sequence of the closing process of the damper for high temperature according to a preferred embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

Detailed contents for carrying out the present invention will be described in detail with reference to the accompanying drawings below. Regardless of the drawings, like reference numbers refer to like elements, and "and/or" includes each and every combination of one or more of the recited items.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

The terminology used herein is for the purpose of describing the embodiments, and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 3 is a perspective view showing an open state of the high temperature damper according to a preferred embodiment of the present invention, and FIG. 4 is a perspective view showing a closed state of the high temperature damper according to the preferred embodiment of the present invention, FIG. 5 is a perspective view showing a sealing unit respectively attached to a blade and a body sheet according to a preferred embodiment of the present invention, Figure 6 is an enlarged view of Figure 5 attached to the sealing unit according to a preferred embodiment of the present invention, Figure 7 is 6 is a perspective view of the damper for high temperature viewed from the opposite direction.

3 to 7, first of all, the high temperature damper 100 according to a preferred embodiment of the present invention includes a valve body 30 connected to a pipe line and both ends of the valve body 30 are coupled to each other. The blade 50 and the valve body are arranged eccentrically spaced apart from the rotation shaft 40 and the rotation shaft 40 at a predetermined distance, and rotated at a predetermined angle in the valve body 30 by the rotation of the rotation shaft 40 . It is provided on the inner surface of the 30, and is made of a plurality of pieces and a body sheet 60 formed at a constant height on the same line as the blade 50 in a state in which the blade 50 is closed, and one side is adjacent to each other. It is disposed, and a portion is attached to the periphery of the body sheet 60 with respect to the rotation shaft 40 , and a sealing unit 70 is partially attached to the periphery of the blade 50 .

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying FIGS. 3 to 7 .

First, a hydraulic motor or a pneumatic actuator (not shown) may be provided on the outside of the valve body 30 as a driving means for operating the rotating shaft 40 .

In the hydraulic motor or pneumatic actuator, the opening and closing operation of the blade 50 may be automatically performed by a control unit (not shown), and the opening and closing operation of the blade 50 may be manually performed through rotation of a handle (not shown). Of course, it can be manipulated with

On the other hand, the high temperature damper 100 is preferably provided as a butterfly valve.

The butterfly valve is a valve that adjusts the flow rate of the fluid flowing through the pipe by turning a plate-shaped valve disk disposed on the valve pipe. am.

In addition, in the present invention, the blade 50 is arranged to be eccentrically spaced apart from the rotation shaft by a predetermined distance, so that the blade 50 is rotated at a predetermined angle within the valve body 30 by the rotation of the rotation shaft 40 . When rotating, the blade 50 and the body sheet 60 are frictionally provided to reduce the interference effect.

On the other hand, as the blade 50 has excellent corrosion resistance and must be made of a material that is not easily deformed by high temperature and high pressure, the blade 50 is made of metal or stainless steel, more preferably stainless steel 304 Alternatively, it may be made of a material of 316.

Stainless steel is a material that does not rust as much as steel, and has strong corrosion resistance, so it is generally used for chemical industry pipes, cylinders, pumps, and marine products.

In addition, the blade 50 is coupled together with a bracket 42 provided on the rotation shaft 40, the bracket 42 is the rotation shaft 40 is spaced apart from the surface of the blade 50 by a predetermined distance. It is preferable to have a predetermined thickness on one side in contact with one surface of the blade 50 so as to be eccentrically disposed.

Next, it is made of a plurality of pieces, and one side is arranged so as to be adjacent to each other, and some are attached to the circumference of the body sheet 60 around the rotation shaft 40 , and some are attached to the circumference of the blade 50 . A sealing unit 70 is provided.

On the other hand, as a method of attaching the sealing unit 70 to the blade 50, there are methods such as welding, fitting, and bolt fastening, but preferably, the sealing unit 70 is connected to the blade by a bolt fastening method. It is preferable to be provided so as to be respectively fastened to the outer peripheral surface of the 50 and the outer peripheral surface of the body sheet (60).

The bolt fastening method can easily replace only the sealing unit 70 to be replaced when replacement is required as the sealing unit 70 is used for a long time. As such, it can provide significant maintenance benefits.

The sealing unit 70 is provided in a rhombus shape with an upper side longer than the lower side, and is circularly disposed along the circumference of the body sheet 60 when a plurality of them are disposed adjacently, and the rotation shaft 40 is the reference Doedoe coupled along the front circumference of the body sheet 60 on the left side, the first sealing unit 70a and the rotation shaft 40 coupled by bolt fastening are attached along the front circumference of the blade 50 on the right side. , is provided with a second sealing unit (70b) coupled by bolt fastening.

At this time, the sealing unit 70 is provided with at least one first through hole 72 penetrating the inside, the first sealing unit 70a is formed on one upper side, and the second sealing unit has a lower portion. It is formed on one side and is coupled by bolting with the first fastening groove 74 formed along the circumference of the body sheet 60 and the blade 50 corresponding to the first through hole 72 .

That is, the first sealing unit (70a) is fixed to the body sheet (60), and the second sealing unit (70b) is rotated with the rotation of the blade (50), and the blade (50) is rotated and closed, both ends of the second sealing unit 70b are in close contact with one side of the first sealing unit 70a so that the sealing unit 70 is parallel to the front surface of the body sheet 60 As they are closely arranged and closely adhered, airtight performance is secured.

In other words, in a state in which the blade 50 is closed, the sealing unit 70 is disposed to be maintained in a circular planar shape in front of the body sheet 60 and the blade 50 so that the body sheet 60 . It is provided to minimize the outflow of exhaust gas between the gap and the blade (50).

The reason why the sealing unit 70 is attached separately to the first sealing unit 70a and the second sealing unit 70b is that the blade 50 interferes with the body sheet 60 in the rotating direction. In addition, as the blade 50 is adhered to the body sheet 60 due to thermal expansion at high temperature due to prolonged exposure in a high temperature use environment, interference in operation occurs and whether the valve operation is open or closed and airtightness It is to solve the problem that it is difficult to maintain.

On the other hand, the sealing unit 70 is provided with the same material as the blade 50, so that it has excellent heat resistance and restoration elasticity, and can be provided to implement sufficient strength.

For example, the sealing unit 70 should be provided to minimize the effect of high-temperature exhaust gas, and at the same time, it is preferable to be provided with a stainless steel material that has excellent restoring elasticity and sufficient strength.

At this time, when the sealing unit 70 is coupled to the body sheet 60 , a lower end of the sealing unit 70 is provided to be coupled together with the gasket 80 .

The gasket 80 is provided in a shape corresponding to the shape of the sealing unit 70, and is preferably made of a material that minimizes the effect of high-temperature exhaust gas, and more preferably made of a non-asbestos material. it is preferable

The gasket 80 is provided with a second fastening groove 84 penetrating the inside, and is attached to a bolt (not shown) penetrating the first through hole 72 provided on one side of the first sealing unit 70a. It is fastened by a bolt and is coupled to the first fastening groove 74 provided in the body sheet.

On the other hand, the second sealing unit 70b attached along the outer circumferential surface of the blade 50 also passes through the first through-hole 72 through the above process, and then together with the gasket 80, the blade ( 50) It is fastened by bolting to the first fastening groove 74 provided on the outer circumferential surface.

Meanwhile, the body seat 60 provided in the valve body 30 is welded or formed to the valve body 30 so that the body seat 60 is positioned on the same line as the blade 50 in a closed state. It is possible to solve the hassle of the work process in the process.

In addition, the blade 50 may perform a perfect opening and closing operation at an angle of 0° to 90° within the valve body 30 , and the sealing unit 70 is in line contact with the body seat 60 . It is possible to further improve the sealing performance due to the non-surface contact.

Next, Figure 8 is a photograph showing a state in which the rope seal is mounted in the sealing member insertion groove according to the preferred embodiment of the present invention.

As shown in (a) of FIG. 8, the sealing unit 70 is provided to be spaced apart from the first through hole 72, and has a sealing member insertion groove 76 provided long in the longitudinal direction on the inner surface. Provided, the rope seal 78 inserted into the sealing member insertion groove 76 may be provided so as to further improve sealing performance by contacting one side of the body sheet 60 and one side of the blade 50, respectively. have.

In other words, the rope seal 78 is disposed in the sealing member insertion groove 76 provided in the first sealing unit 70a provided in the form of a plurality of pieces to be in contact with the outer circumferential surface of the blade 50 . 8 (b), the rope seal 78 is disposed in the sealing member insertion groove 76 formed in the second sealing unit 70b, and the body sheet 60 It is provided so as to be in contact with one side of the.

On the other hand, as the rope seal 78 should be made of a material capable of minimizing the effects of thermal deformation and thermal expansion due to the high-temperature exhaust gas, it is preferable to be provided with the rope seal 78 containing ceramic. .

Therefore, as the rope seal 78 provided in the sealing unit 70 is provided to contact the side surfaces of the blade 50 and the body sheet 60, the sealing unit 70 is discharged from high-temperature exhaust gas. Even if it is thermally expanded by the , it is possible to prevent the valve body 30 from being stuck inside the valve body 30 and from being pinched or the sealing property is deteriorated.

Next, as shown in FIG. 9 , the sealing unit 70 seals between the adjacent sealing units 70 to further improve the airtightness of the joint portion. A reinforcing cover 90 attached to the pad is disposed.

For example, the first sealing unit (70a) is mounted so that one side is in contact along the circumference of the body sheet (60), the exhaust gas that may occur between the gaps of each of the first sealing units (70a) The reinforcing cover (90) on the front surface of the sealing unit (70) in order to minimize and prevent deformation from occurring from the high-pressure exhaust gas by increasing the bonding force between the first sealing units (70a). will be provided

At this time, the reinforcing cover 90 may be provided in plurality to correspond to the size and number of the sealing unit 70 , and a bolt is inserted into the second through hole 92 penetrating the inner side of the reinforcing cover 90 . It is inserted and provided to be fastened with at least one hole provided on both sides of the sealing unit 70 .

Next, the sealing unit 70 is provided in a rhombus shape with an upper side longer than the lower side, and when a plurality of them are arranged adjacently, they are arranged in a circle along the circumference of the body sheet 60, in general, As the shape of the blade 50 is provided in a circular shape, the body sheet 60 is also provided in a circular shape, and the sealing unit 70 is provided to seal the blade 50 and the body sheet 60 . ) is also arranged in a circle along the circumference of the body sheet (60).

At this time, when a plurality of the sealing units 70 are disposed adjacent to each other, in order to prevent the high-temperature fluid gas from leaking from the adjacent portions, it is provided in a rhombus shape, which is an optimal shape, so that the overall shape is circular. will be arranged as much as possible.

On the other hand, it goes without saying that the size of the sealing unit 70 may be provided to correspond to the size of the valve body 30 and the blade 50 .

In this way, the high temperature damper 100 according to this embodiment is the rotary shaft 40 by a driving means such as the hydraulic motor or a pneumatic actuator (not shown) provided on the outside of the valve body 30 . By this operation, the blade 50 is rotated to open/block the flow path in the valve body 30. The operation will be described as follows.

First, as shown in FIG. 9 (a), when the blade 50 is inclined at a predetermined angle (45°) from the longitudinal centerline of the flow path formed in the valve body 30, the flow path is open becomes

And, by the operation of the hydraulic motor or pneumatic actuator (not shown), the rotary shaft 40 rotates to one side, so that the blade 50 to which the second sealing unit 70b is attached is shown in FIG. 9(c) and The flow path is closed when it reaches an angle (90°) perpendicular to the longitudinal center line of the flow path. At this time, the second sealing unit 70b attached to the outer circumferential surface of the blade 50 is the valve body 30. It comes into close contact with the body sheet 60 provided therein and comes into parallel contact, and one end of the second sealing unit 70b is in contact with one end and the side surface of the first sealing unit 70a, so that between the sealing units 70 It is possible to completely close the gap of

In other words, by rotating the second sealing unit (70b) so that both sides of the first and second sealing units (70a), (70b) are in contact with each other in the closed state of the blade (50), the sealing unit ( 70) It is arranged so that it can be sealed by minimizing the gap between them, and the greatest advantage is that it can be arranged and operated regardless of the thickness of the blade 50 and the body sheet 60 .

Here, as the blade 50 is provided eccentrically from the rotation shaft 40 at a predetermined interval, when the blade 50 moves to the closed position, the sealing unit 70 is in surface contact with the body sheet 60 Airtightness is maintained, and, moreover, because of the structure in which friction does not occur with each other, the body sheet 90 in contact with the second sealing unit 70b attached to the outer circumferential surface of the blade 50 is caused by direct friction. A phenomenon in which abrasion or resistance is applied to the operation of the blade 50 does not occur.

In this embodiment, as a condition for using the damper 100 for high temperature, it is preferable to use only when the object to be transferred is gas or gas or liquid containing powder.

Although embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can practice the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: damper for high temperature
30: valve body
40: axis of rotation
42: bracket
50: blade
60: body seat
70: sealing unit
70a: first sealing unit
70b: second sealing unit
72: first through hole
74: first fastening groove
76: sealing member insertion groove
78: rope seal
80: gasket
84: second fastening groove
90: reinforcement cover
92: second through hole

Claims (6)

a valve body connected to a pipeline;
a rotating shaft having both ends coupled to the valve body;
a blade that is eccentrically spaced apart from the rotation shaft and rotates at a predetermined angle in the valve body by rotation of the rotation shaft;
a body seat provided on the inner surface of the valve body, the body sheet being formed at a constant height on the same line as the blade in a closed state;
Consisting of a plurality of pieces, one side of which is disposed adjacent to each other, some of which are attached to the periphery of the body sheet around the axis of rotation, and some are attached to the periphery of the blade.
The sealing unit is provided with a plurality of pieces of a rhombus shape with an upper side longer than the lower side, and a first sealing unit coupled with bolts along the front circumference of the body sheet on the left side with respect to the rotation axis;
Damper for high temperature, characterized in that it is provided with a second sealing unit coupled along the front circumference of the blade on the right with respect to the rotation axis. delete According to claim 1,
The sealing unit,
When the blade rotated with respect to the rotation axis is moved to the closed position, both ends of the second sealing unit are arranged to be in close contact with one side of the first sealing unit, and the sealing unit is in a closed state of the blade. A damper for high temperature, characterized in that it is disposed in a plane in front of the body sheet. The method of claim 1,
The sealing unit,
At least one or more first through-holes penetrating the inside are provided, wherein the first through-holes are respectively formed on an upper side of the first sealing unit and a lower side of the second sealing unit, and correspond to the first through-holes. A damper for high temperature, characterized in that it is coupled to the first fastening groove formed along the circumference of the body sheet and the blade by bolt fastening. 5. The method of claim 4,
The sealing unit,
A sealing member insertion groove which is provided to be spaced apart from the first through-hole and provided long in the longitudinal direction is provided on the inner surface, and a rope seal inserted into the sealing member insertion groove is provided on one side of the body sheet and one side of the blade, respectively. Damper for high temperature, characterized in that it is provided to further improve sealing performance by contact. 2. The method of claim 1
The sealing unit,
A damper for high temperature, characterized in that a reinforcing cover attached to the front surface of the sealing unit is provided to seal between the adjacent sealing units to further improve the airtightness of the joint.

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