KR102006924B1 - Apparatus for connecting pipes - Google Patents

Abstract

A pipe connection device is disclosed. A pipe connecting device according to an embodiment of the present invention, the pipe connecting device for connecting the first pipe and the second pipe, comprising: a first hub flange coupled to the end of the first pipe; A second hub flange coupled to the end of the second pipe; A clamp coupling the first hub flange and the second hub flange; And a fixing part preventing rotation between the clamp, the first hub flange, and the second hub flange.

Description

Apparatus for connecting pipes}

The present invention relates to a pipe connecting device, and more particularly to a device for connecting pipes using hub flanges.

Hub flanges are used to connect pipes in offshore construction. The connection method using the hub flange has the advantage of reducing the overall weight and space because the number of bolts is smaller than that of the general flange and the process is quick and easy to maintain. However, hub flanges are sensitive to alignment and stress loads, which often lead to fluid leakage. In addition, even when the alignment of the hub flange is installed at the time of installation, the hub flange is finely rotated in the process of applying torque to the clamp, and the entire pipe connected to the hub flange often occurs. In this case, a large alignment error occurs in the flange connection portion at the other end of the pipe.

The present invention is to provide a pipe connecting device that can prevent the rotation of the hub flange.

In addition, the present invention is to provide a pipe connecting device capable of adjusting the angle of the hub flange.

The problems to be solved by the present invention are not limited to the above-mentioned problems. Other technical subjects not mentioned will be apparent to those skilled in the art from the description below.

A pipe connecting device according to an aspect of the present invention, the pipe connecting device for connecting the first pipe and the second pipe, comprising: a first hub flange coupled to the end of the first pipe; A second hub flange coupled to an end of the second pipe; A clamp for coupling the first hub flange and the second hub flange; And a fixing part preventing rotation between the clamp, the first hub flange, and the second hub flange.

The clamp may include a semicircular first clamp coupled to one side of the first hub flange and the second hub flange; A semi-circular second clamp coupled around the other side of the first hub flange and the second hub flange; And a fixing member coupling the first clamp and the second clamp.

In one embodiment, the fixing portion, the first lock pin and the second lock pin protruding on the inner surface of the clamp; A first coupling groove formed in the first hub flange and into which the first lock pin is inserted; And a second coupling groove which is formed in the second hub flange and is inserted into the second hub flange, into which the second lock pin is inserted.

In another embodiment, the fixing portion, the first coupling groove and the second coupling groove which is formed in the inner surface of the clamp; A first lock pin protruding from an outer surface of the first hub flange and inserted into the first coupling groove; And a second lock pin protruding from an outer surface of the second hub flange and inserted into the second coupling groove.

At least one of the first lock pin, the second lock pin, the first coupling groove, and the second coupling groove may be the clamp and the second coupling member so as to adjust an angle between the first hub flange and the second hub flange. A plurality of hub hubs or second hub flanges may be formed in the circumferential direction.

According to an embodiment of the present invention, there is provided a pipe connecting device that can prevent the rotation of the hub flange.

In addition, according to an embodiment of the present invention, there is provided a pipe connecting device capable of adjusting the angle of the hub flange.

The effects of the present invention are not limited to the effects described above. Effects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a perspective view of a pipe connecting device according to an embodiment of the present invention.
2 is an exploded perspective view of a pipe connecting device according to an embodiment of the present invention.
3 is a perspective view of a pipe connecting device according to another embodiment of the present invention.
4 and 5 are cross-sectional views of a pipe connection device according to another embodiment of the present invention.

Other advantages and features of the present invention and methods of achieving them will be apparent by referring to the embodiments described hereinafter in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and the present invention is only defined by the scope of the claims. If not defined, all terms used herein (including technical or scientific terms) have the same meaning as commonly accepted by universal techniques in the prior art to which this invention belongs. A general description of known configurations may be omitted so as not to obscure the gist of the present invention. In the drawings of the present invention, the same reference numerals are used as many as possible for the same or corresponding configurations. In order to help the understanding of the present invention, some of the components in the drawings may be somewhat exaggerated or reduced.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise", "have" or "include" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification. Or any other feature or number, step, operation, component, part, or combination thereof.

1 is a perspective view of a pipe connecting device according to an embodiment of the present invention. 2 is an exploded perspective view of a pipe connecting device according to an embodiment of the present invention.

1 to 2, the pipe connecting device 100 according to the embodiment of the present invention uses two hub flanges and a clamp to clamp the first pipe 110 and the second pipe ( It is provided to connect the 120, and includes a first hub flange 130, a second hub flange 140, clamps (150, 160) and fixing parts (132, 142, 162, 164).

The first hub flange 130 is coupled to the end of the first pipe 110, and the second hub flange 140 is coupled to the end of the second pipe 120.

Steps for coupling to the clamps 150 and 160 are formed around outer surfaces of the first hub flange 130 and the second hub flange 140.

Pipe connection method using the hub flanges (130, 140) is less than the number of bolts compared to the general flange, it is possible to quickly and easily pipe work or maintenance work, there is an advantage that can reduce the weight and space.

The clamps 150 and 160 are for coupling the first hub flange 130 and the second hub flange 140, and include a semicircular first clamp 150 and a semicircular second clamp 160.

The first clamp 150 and the second clamp 160 are disposed and coupled around one side and the other side of the first hub flange 130 and the second hub flange, respectively.

Each of the first clamp 150 and the second clamp 160 has a flange for coupling with the fixing member 170. The first clamp 150 and the second clamp 160 are coupled by a fixing member 170 such as a bolt.

The fixing parts 132, 142, 162, and 164 are provided as stoppers for preventing rotation between the clamps 150 and 160 and the first hub flange 130 and the second hub flange 140.

In one embodiment, the fixing portion is recessed and formed in the outer surface of the first lock pin 162 and the second lock pin 164, the first hub flange 130 protruding on the inner surface of the clamp (150, 160) It may include a first coupling groove 132 into which the lock pin 162 is inserted and a second coupling groove 142 into which a recess is formed in the outer surface of the second hub flange 140 and the second locking pin 164 is inserted. have.

The lock pins 162 and 164 may be formed in the first clamp 150 and the second clamp 160, respectively, or may be formed in any one of the first clamp 150 and the second clamp 160.

According to the exemplary embodiment of the present invention, the first lock pin 162 formed on the clamps 150 and 160 is inserted into the first coupling groove 132 formed on the first hub flange 130 and inserted into the clamps 150 and 160. It is possible to prevent the first hub flange 130 from rotating.

In addition, the second lock pins 164 formed on the clamps 150 and 160 are inserted into the second coupling grooves 142 formed on the second hub flanges 140, so that the second hub flanges (not shown) are clamped to the clamps 150 and 160. 140 may be prevented from rotating.

Therefore, in the process of coupling the first clamp 150 and the second clamp 160 by applying a torque to the bolt, the first hub flange 130 and the second hub flange 140 and pipes 110 and 120 connected thereto. ) Can be prevented from rotating, and large alignment errors can be prevented from occurring at the next connecting portions of the pipes 110 and 120.

3 is a perspective view of a pipe connecting device according to another embodiment of the present invention. In the description of the embodiment of FIG. 3, duplicate descriptions of components that are the same as or corresponding to the above-described embodiment may be omitted.

In the pipe connecting device 100 according to the embodiment of FIG. 3, the first coupling groove 166 and the second coupling groove 168 are formed in the inner surfaces of the clamps 150 and 160, and the first hub flange 130 is formed. The first locking pin 134 is formed on the outer surface of the second insertion groove 166 is inserted into the first coupling groove 166, the second locking pin 144 is formed on the outer surface of the second hub flange 140 and the second coupling groove. Inserted into 168, and configured to prevent rotation of the first hub flange 130 and the second hub flange 140, there is a difference from the above-described embodiment.

The coupling grooves 166 and 168 may be formed in the first clamp 150 and the second clamp 160, respectively, or may be formed in any one of the first clamp 150 and the second clamp 160.

In another embodiment, the first coupling groove and the first lock pin are formed on the inner surfaces of the clamps 150 and 160, respectively, and the first lock pin is formed to protrude on the outer surface of the first hub flange 130 to clamp the clamp 150. , 160 is inserted into the first coupling groove, the first locking pin of the clamp is inserted into the second coupling groove formed in the recessed in the outer surface of the second hub flange 140, the first hub flange 130 and the second hub It may be configured to prevent rotation of the flange 140.

4 and 5 are cross-sectional views of a pipe connection device according to another embodiment of the present invention. 4 and 5, duplicate descriptions of components that are the same as or corresponding to the above-described embodiments may be omitted.

In the pipe connection device 100 according to the embodiment of FIGS. 4 and 5, the first locking pins 152 and 162 may be formed so that the angle between the first hub flange 130 and the second hub flange 140 may be adjusted. A plurality of first clamps 150 and a second clamp 160 are formed along the circumferential direction, and a plurality of first coupling grooves 132 are formed along the circumferential direction of the first hub flange 130.

In addition, a plurality of second lock pins may be formed along the circumferential direction of the first clamp 150 and the second clamp 160, and a plurality of second coupling grooves may be formed along the circumferential direction of the second hub flange.

4 and 5, the angle between the first hub flange and the second hub flange may be adjusted by the angle between the coupling grooves 132 and the angle between the lock pins 152 and 162.

In another embodiment, the first lock pin and the second lock pin are plural along the circumferential direction of the hub flanges 130 and 140 to enable angle adjustment between the first hub flange 130 and the second hub flange 140. It is also possible to form a dog, a plurality of first coupling groove and the second coupling groove can be formed along the circumferential direction of the clamp.

It is to be understood that the above-described embodiments are provided to facilitate understanding of the present invention, and do not limit the scope of the present invention, and it is to be understood that various modifications are possible within the scope of the present invention. The technical protection scope of the present invention should be defined by the technical spirit of the claims, and the technical protection scope of the present invention is not limited to the literary description of the claims per se, but the scope of the technical equivalents is substantially equal. It should be understood that the invention extends to the invention.

100: pipe connecting device 110: first pipe
120: second pipe 130: first hub flange
132: first coupling groove 134: first locking pin
140: second hub flange 142: second coupling groove
144: second lock pin 150: first clamp
152, 162: first lock pin 160: second clamp
162: first lock pin 164: second lock pin
166: first coupling groove 168: second coupling groove
170: fixing member 180: sealing member

Claims (5)

In the pipe connecting device for connecting the first pipe and the second pipe,
A first hub flange coupled to an end of the first pipe;
A second hub flange coupled to an end of the second pipe;
A clamp for coupling the first hub flange and the second hub flange; And
And a fixing part preventing rotation between the clamp, the first hub flange, and the second hub flange.
The clamp may include a semicircular first clamp coupled to one side of the first hub flange and the second hub flange; A semi-circular second clamp coupled around the other side of the first hub flange and the second hub flange; And a fixing member coupling the first clamp and the second clamp.
The fixing unit may include one first locking pin protruding only on an inner surface of any one of the first clamp and the second clamp; One second lock pin protruding only on an inner surface of one of the first clamp and the second clamp; A first coupling groove formed in the first hub flange and into which the first lock pin is inserted; And a second coupling groove recessed in the second hub flange and into which the second lock pin is inserted.
The first coupling groove may be formed in plural along the circumferential direction of the first hub flange so that the angle between the first hub flange and the second hub flange may be adjusted. A plurality of pipe connecting device is formed along the circumferential direction. delete delete delete delete

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