KR101554028B1 - Butterfly valve with a expansion pipe integrally valve interplanar length - Google Patents

Abstract

The present invention relates to a butterfly valve, and more particularly, to a butterfly valve capable of moving in a discharge direction of a flow path without performing a welding operation for cutting a pipeline and re- The present invention relates to an expansion valve integrated valve having a butterfly valve intervening length that can be easily installed and replaced and can reduce construction costs and prevent leakage of water generated by a valve using a push bolt. do.
Further, according to the present invention, the expansion pipe integral valve having the inter-face length of the butterfly valve has the effect of adjusting the length of the valve body by means of the expansion and contraction flange so as to more effectively install and replace the valve, And work such as welding can be omitted to reduce the construction cost, and the leakage of the valve can be prevented by maintaining the airtightness of the valve by using the guide ring and the push bolt.

Description

[0001] The present invention relates to an expansion valve integrated valve having an interfacial length of a butterfly valve,

The present invention relates to a butterfly valve, and more particularly, to a butterfly valve capable of moving in a discharge direction of a flow path without performing a welding operation for cutting a pipeline and re- Is a technical field of an expansion pipe integral valve having an inter-surface length of a butterfly valve that can be easily installed and replaced, can reduce construction costs, and can prevent leakage of water generated in a valve using a push bolt.

In general, a valve is a device which stably induces the flow of fluids and gases while being installed in a facility requiring high airtightness, that is, a pipe line through which water, oil, gas, etc. flow. A double butterfly valve, also referred to as a so-called splice valve, is provided so that a disk having the shape of a disk is pivoted in the valve and can perform opening and closing operations to regulate the flow of fluids and gases, And is operated.

1 to 3, a flange provided at one end of a channel provided in a direction in which a fluid and a gas are sucked, and a flange provided at the other end of a channel provided in a discharge direction, And the other end of the butterfly valve. At this time, it is obvious that a gasket or the like is provided on the coupling surface in order to prevent water leakage on the coupling surface of the pipeline and the butterfly valve.

These butterfly valves are designed for use with butterfly valves that have a constant inter-plane length "L" and have a constant inter-plane length "L" installed, replace and repair due to wear, If work is required, the valve is disassembled from the installed pipeline and replaced with a new valve, or repaired and replaced.

In addition, the conventional butterfly valve has a constant inter-plane length "L ", and the center axis of the disk boss 12 'is positioned on the central axis 70 of the inter-plane length to rotate the disk 11'.

2, in order to replace the valve with a new valve after disassembling the valve from the pipeline in the event of a malfunction of the conventional butterfly valve, the pipeline in the suction direction 110 or the pipeline in the discharge direction 120 One of the pipelines is cut and replaced with a new valve, and the piping having a length smaller than that of the cut pipeline is connected by welding the connection member 130, or a pipeline having a larger inner diameter than the existing pipeline is inserted, I used the method.

However, by using a new pipe instead of the cut pipe, or by using the connecting member 130 or the like, the construction cost is increased, and the high pressure by the flow of the fluid and the gas moving along the pipe, And the durability of the pipeline is deteriorated due to the breakage of the connected portions.

Korea Patent Publication No. 2007-0050889 Korean Patent No. 1077580

Disclosure of Invention Technical Problem [8] The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method of installing a conventional expanding flange which moves along a valve body in a discharge direction in which fluid and gas are discharged, Provides an expansion pipe integral valve with butterfly valve inter-face length that can easily replace the valve and effectively prevent water leakage from the valve by using a guide ring and push bolt to maintain the airtightness of the replaced butterfly valve The main purpose is to do.

In order to realize the above-described object, the present invention is characterized in that a flow passage 100 is formed and a valve disc 11 is fixed to a disc boss 12 on an inner side to be installed in a rotatable opening and closing structure, A valve body 10 having a fixing flange 14 integrally formed at one end thereof and a guide surface 13 formed at the other end periphery of the valve body 10 and a receiving portion 21 extending inwardly of the valve body 10, And a guide groove 22 is formed by the combination of the valve body 10 and the expansion and contraction flange 20 and the expansion and contraction flange 20 which is movably coupled along the guide surface 13 of the valve body 10 A push ring 30 which is inserted into the guide groove 22 and a press ring 30 which is in contact with one side surface and the other side surface of the push ring 30 so as to be in contact with the guide groove 22, ); And a guide ring (50) fitted in the guide groove (22) to support and press one side of the compression packing (40)

The expansion and contraction flange 20 further includes a push bolt 60 that supports and presses the other side of the push ring 30 and is fastened to the bolt groove 23, Is formed only in the discharge direction (120).

The central axis 12a of the disk boss 12 is moved in the suction direction 110 of the flow path more than the center axis 70 of the valve normal length L in order to maximize the moving distance of the expansion flange 20. [ .

The valve according to the present invention having the inter-plane length of the butterfly valve according to the present invention has the effect that the length of the valve body can be adjusted by the expansion and contraction flange to more effectively install and replace the valve, It is possible to reduce the construction cost by omitting the work such as cutting and welding of the valve and the effect of preventing leakage of the valve by maintaining the airtightness of the valve by using the guide ring and the push bolt.

1 is a cross-sectional view of a conventional butterfly valve installed in a pipeline.
2 is a cross-sectional view showing a method of replacing a conventional butterfly valve.
3 is a cross-sectional view of a conventional butterfly valve.
4 is an exploded perspective view according to an embodiment of the present invention;
5 is a exploded cross-sectional view according to an embodiment of the present invention.
6 is a cross-sectional view according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view illustrating a state in which a valve-intervening length of a valve is reduced and a valve is interposed between the valves according to the embodiment of the present invention; FIG.
8 is a cross-sectional view showing a state in which an inter-surface length of a valve is enlarged to be coupled between channels when a valve is replaced according to an embodiment of the present invention.
9 is an enlarged cross-sectional view of the portion "A"
Fig. 10 is a cross-sectional view showing a method of enlarging the portion "B" in Fig.

The present invention is intended to facilitate the replacement of a conventional valve installed in a pipeline without replacing the pipeline by replacing the existing valve with a new valve. It reduces the construction cost of installing a new pipeline after cutting the pipeline, The movable expansion flange 20 and the push bolt 60 are used.

Further, the present invention maximizes the elongating and contracting length of the elongating and contracting flange 20 by moving the center axis 12a of the disk boss 12 to one side rather than the central axis 70 having the inter-plane length of the existing "L" And a sealing packing 40 having a V-shape on one side is engaged with the guide groove 22 formed by the expansion and contraction flange 20 coupled to the valve body 10 so as to maintain airtightness, .

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

More specifically, the present invention is characterized in that the flow passage 100 is formed and the valve disc 11 is fastened to the disc boss 12 in the inside and is installed in a rotatable opening and closing structure and the fixing flange 14 is integrally formed A valve body 10 having a guide surface 13 formed on the outer peripheral edge of the other end and a receiving portion 21 extending inwardly of the valve body 10 are formed integrally with the valve body 10, A guide groove 22 is formed by the engagement of the valve body 10 and the expansion and contraction flange 20 and a guide groove 22 is formed in the guide groove 22, A compression ring (40) in which one side surface and the other side surface of the push ring (30) come into close contact with each other and are inserted into the guide groove (22), and one side surface has a V shape; And a guide ring 50 which is fitted to the guide groove 22 and supports and presses one side of the compression packing 40.

The expansion and contraction flange 20 of the present invention further comprises a push bolt 60 that supports and presses the other side of the push ring 30 and is fastened to the bolt groove 23.

First, the valve body 10 of the present invention

The valve disc 11 is fixed to the disc boss 12 and is installed in a rotatable opening and closing structure and a fixed flange 14 is provided on the outer circumferential edge of one end (Not illustrated) provided on the center shaft 12a of the disc boss 12 and a guide surface 13 on which the extensible flange 20 to be described later is to be moved is formed on the outer peripheral edge of the other end, And the valve disc 11 is rotated to open and close.

At this time, the guide surface 13 forms the stopping jaw 15 in order to prevent contact with the housing protecting the rotation axis of the disc boss 12 when the stretch flange 20 is moved in the direction of the valve body 10 And the length of the guide surface 13 is determined along the central axis 12a of the disk boss 12. [ However, the guide surface 13 may be formed at the same height as the outer periphery of the valve body 10 without forming the engaging jaws 15. [

It is preferable that a gasket (not shown) or the like is installed in the ducts of the suction direction 110 and the discharge direction 120 connected to the valve body 10 by flange connection so as to maintain airtightness at the connection site. It will be apparent to those skilled in the art that various modifications may be made in the number.

6, the center bore 12a of the disk boss 12 of the present invention is positioned so that the center axis 12a is in contact with the fluid and the gas, that is, the central axis 70 of the conventional normal valve inter- Which is moved in the suction direction 110 of the flow path, thereby maximizing the moving distance of the expansion and contraction flange 20, which will be described later in detail, realizing a more smooth pull-in effect when it is introduced between the pipeline and the pipeline.

3, the conventional valve has a constant inter-plane length "L" so that the center axis 70 of the disk boss 12 'is located at the center of the inter-plane length "L" The valve disc 11 'is rotated by the boss 12'.

6, the center axis 12a of the disk boss 12 of the present invention is located on the left side of the center axis 70 of the disk boss 12 'of the conventional valve, that is, The housing for protecting the rotation shaft formed on the center shaft 12a described above is moved in the direction of the inner side of the valve body 10, that is, the fixed flange 14 The housing for protecting the rotating shaft is moved together with the movement of the center shaft 12a so that the distance by which the extending flange 20 is moved can be maximized.

10, B) is a view showing a state in which the stretching flange 20 is combined with a normal inter-surface length "L" of the conventional valve, and Bb) 120 to maximize the inter-plane length, and Bc shows a state in which the stretch flange 20 is moved in the suction direction 110 and the inter-face length is minimized.

Next, the expansion and contraction flange 20 of the present invention

5 to 6, which is integrally formed with a receiving portion 21 extending inwardly of the valve body 10 and is movably coupled along the guide surface 13 of the valve body 10, A guide groove 22 is formed between the extensible flange 20 and the valve body 10 when the extensible flange 20 is fitted along the guide surface 13 of the valve body 10 so as to be described later The push ring 30, the compression packing 40, and the guide ring 50 can be accommodated in the guide groove 22.

The extension flange 20 has a projection (not shown) extending downward at one end of the receiving portion 21 and a plurality of bolt grooves 23 are formed in the projection so that the push bolt 60 is fastened do. In addition, the push bolt 60 applies pressure to the push ring 30, which will be described later in detail, to transmit the pressure to the press packing 40, whereby the air tightness between the valve body 10 and the stretch flange 20 Thereby realizing the effect of maintaining the same.

That is, the expansion and contraction flange 20 moves in the inward direction of the valve body 10, that is, in the direction of the fixing flange 14, when the valve is inserted between the pipeline and the pipeline, thereby decreasing the inter- (Not shown) formed in each of the pipelines after the inlet is smoothly coupled with the fixing flange 14 of the valve, and at the same time, the expansion and contraction flange 20 is moved outwardly of the valve body 10, that is, And is moved in a direction opposite to the fixed flange 14 to be engaged with the counter flange.

Accordingly, after the conventional valve installed in the existing valve is dismantled and removed, the inter-plane length of the valve of the present invention is moved to the space that was secured by the inter-plane length "L" Thereby realizing the effect of reducing the construction cost and the construction time by smoothly replacing the new valve in the space between the pipeline and the pipeline without cutting the pipeline.

In connection with the above, it is preferable that the expansion and contraction flange 20 is installed in the discharge direction 120 in which the flow path is discharged. If the expansion flange 20 is installed in the suction direction 110 in which the flow path is sucked, The high pressure is applied to the guide ring 50 and the expansion and contraction flange 20 which are engaged with each other, so that breakage and leakage of water can be caused.

Next, the push ring 30 of the present invention

The expansion and contraction flange 20 is inserted into the guide groove 22 formed by fitting the valve body 10 and has a ring shape of elastic rubber or synthetic resin. In order to maintain the airtightness, It is preferable to have a rectangular cross-sectional shape as shown in Fig. 4A, which realizes a smooth effect of transferring the pressure to the compression packing 40 which is then closely contacted.

9, the push bolt 60 is fastened to the bolt groove 23 formed in the receiving groove 21 of the expansion and contraction flange 20, The ring 30 is pressurized by the tightening of the push bolt 60 and the push ring 30 again presses the compression packing 40.

The push ring 30 is pressed against the inner surface of the projection and the other side of the push bolt 60 and the compression packing 40 to maintain airtightness between the valve body 10 and the stretch flange 20, Thereby preventing leakage of water between the flange 10 and the extensible flange 20.

Next, the compression packing (40) of the present invention

The push ring 30 is made of rubber and synthetic resin having elasticity. The push ring 30 has a ring shape with one side and the other side being in close contact with each other and being inserted into the guide groove 22, And one side of the V shape is supported and pressed by the guide ring 50 to be described later so that one side of the V shape is pressurized to the outside of the compression packing 40, The coupling between the body 10 and the expansion and contraction flange 20 is further strengthened and the airtightness between the valve body 10 and the expansion and contraction flange 20 is increased to realize an effect of more effectively preventing leakage of water.

That is, the sealing by the compression packing 40 is performed by the guide ring 50, which will be described later in detail, when the expansion flange 20 is fastened with the bolt with the relative flange (not shown) The valve body 10 and the expansion and contraction flange 20 are separated from each other when the leakage of water occurs between the valve body 10 and the expansion and contraction flange 20 as time elapses. And the push ring 30 is pressed by the push bolt 60 and pressed once again without being damaged by the compression packing 40 so that the one side of the V shape of the compression packing 40 The airtightness is maintained by the push ring (30).

Next, the guide ring 50 of the present invention

The push ring 30 is fit into the guide groove 22 and is engaged with the compression packing 40 so as to support and press one side of the compression packing 40. The compression ring 40 is made of a rubber material having elasticity or a synthetic resin material, (Not shown) having a shape corresponding to one side of the lower end of the compression packing 40, that is, one side of the V shape, so that the compression packing 40 is made of a metal material, And more effectively supports and presses.

5, the guide ring 50 is provided with a fitting face (not shown), that is, a fitting face corresponding to the shape of the guide ring 50, on the extensible flange 20, Can effectively support and squeeze the compression packing 40 when it is coupled to the mating flange of the conduit and maintain the airtightness.

As a result, by using the stretch flange 20, the present invention can be applied to the case where the distance between the pipeline and the channel is smaller than or larger than the normal interlaminar length "L " The valve can be installed according to the distance formed between the pipeline and the pipeline by having the length "LS ", and the effect of facilitating the replacement using the minimum inter-plane length and the effect of the guide ring 50, the compression packing 40, 30 to prevent water leakage and to prevent leakage of water by using the push bolt 60 when leakage occurs, thereby realizing the effect of extending the service life of the valve.

Next, referring to FIGS. 4 to 10 and the preferred embodiments, the valve of the present invention is described as follows. When a valve having a failure or abnormality is disassembled and separated between a pipeline and a pipeline, A new valve with interplanar length reduced to "LS " is drawn between the conduit and conduit.

Next, the fixing flange 14 is fastened to the pipe flange with bolts and the expansion flange 20 is moved in the outer direction of the valve body 10, that is, in the direction opposite to the fixing flange 14, And tighten with bolts.

At this time, when the expansion and contraction flange 20 is fastened to the flange of the pipe by the bolt, the compression packing 40 and the push ring 30, which are inserted into the guide groove 22 by the guide ring 50, 10 and the expansion and contraction flange 20, thereby preventing water leakage.

Thereafter, when leakage occurs between the valve body 10 and the extensible pullulan 20 after a lapse of time, the push bolt 60 is tightened to press the push ring 30 and the compression packing 40 to prevent leakage have.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is possible to carry out various changes in the present invention.

10, 10 ': valve body 11, 11': valve disc
12, 12 ': Disk boss 13: Guide face
14, 14 ': Fixing flange 15:
20: Extension flange 21:
22: guide groove 23: bolt groove
30: Push ring 40: Crimp packing
50: guide ring 60: push bolt
70, 12a: central axis 100, 100 ': flow passage
110: suction direction 120: discharge direction
130:

Claims (4)

The valve disc 11 is fixed to the disc boss 12 by a flow passage 100 and the valve disc 11 is installed in a rotatable opening and closing structure and the fixing flange 14 is integrally formed on the outer periphery of one end, A valve body 10 having a guide surface 13 formed on the outer periphery of the distal end thereof;
A stretch flange 20 integrally formed at a lower portion of the valve body 10 so as to extend inwardly of the valve body 10 and movable along the guide surface 13 of the valve body 10;
A push ring 30 formed with a guide groove 22 by engagement of the valve body 10 and the extension and flange 20 and inserted in the guide groove 22;
A compression packing (40) in which one side of the push ring (30) is in close contact with the other side and is inserted into the guide groove (22), and the one side has a V shape; And
And a guide ring (50) fitted in the guide groove (22) to support and press one side of the compression packing (40)
The disk boss (12)
In order to maximize the moving distance of the stretching flange 20, the central axis 12a is formed to move in the suction direction 110 of the flow passage than the center axis 70 of the normal inter-plane length "L"
The expansion and contraction flange (20)
(120) of the flow path. The valve according to any one of claims 1 to 13,
The method according to claim 1,
The expansion and contraction flange (20)
Further comprising: a push bolt (60) that supports and presses the other side of the push ring (30) and is fastened to the bolt groove (23).
delete delete

Images