KR102662759B1 - Connector for gas tube with color nut - Google Patents

Abstract

In order to achieve the above object, the present invention is a gas pipe connector that connects the ends of pipes supplying gas to each other, including a through hole into which a gas pipe can be inserted, and a nut for fixing the gas pipe inserted into the through hole. A connector body including a threaded groove into which the gas pipe can be inserted, a nut including a corresponding threaded groove capable of being fastened to the threaded groove of the connector body, and a through hole into which the gas pipe can be inserted. and a sealing member that is inserted between the nut and rotates and fastens to the connector body under pressure, thereby preventing the outflow of gas by closing the gap between the gas pipe and the connector body, and the nut has a surface Provided is a gas pipe connector that is colored so that the type of gas supplied to the gas pipe can be distinguished.

Description

Gas pipe connector with colored nut {Connector for gas tube with color nut}

The present invention relates to a gas pipe connector, and more specifically, to a gas pipe connector for connecting gas pipes for supplying various types of gas to each other and preventing gas leakage.

Various types of gas pipes are installed in gas-using devices such as semiconductor equipment and boilers to transport gas. Gas pipes are installed through pipe cutting, bending, etc., and in many cases, gas pipes must be connected to each other considering the installation location, structure, and convenience of management.

Various types of connectors are used to connect gas pipes. These gas pipe connectors have various structures such as straight, cross-shaped, T-shaped, etc. depending on the path of the gas pipe, and various sealing members such as O-rings and gaskets are used depending on the strength of the sealing.

Gases supplied through gas pipes include combustible gases such as NH3, PH3, SiH4, H4, LNG, corrosive gases such as Cl4, BCl3, N2O, Air, Ar, He, O2, CO2, SFe, GN2, PN2, CHF3, There are many different types, including inert gases such as NF3. For gas pipes used for gases with different properties, it may be difficult to determine the connection relationship with the gas cylinder connected to the gas pipe, which may result in a decrease in workability during the installation and management process of the gas pipe or an accident due to confusion in the connector. It may also be the cause of.

Prior literature on gas pipe connectors includes Japanese Patent Publication No. 2022-551247. The prior literature relates to a service valve including a service valve 100 and a fitting device 200 including a fitting housing 120 whose one side end is fastened to the service valve 100, wherein the fitting housing 120 A ring lock washer spring 25 into which the pipe 165 is inserted and coupled to the inner diameter, and at least one gas that contacts the distal end of the inserted pipe 165 to prevent further entry of the pipe 165 and has a perforation formed therein. A support ring 20 including an inlet is disposed between the support ring 20 and the ring lock washer spring 25, and one side end is tapered to the inner diameter of the ring lock washer spring 25. It includes a rubber packing (10) tapered to face the protruding teeth, and the rubber packing (10) is pressurized by fluid flowing in through the gas inlet, thereby forming the rubber packing (10) and the ring. Disclosed is a service valve including a fitting device that improves the airtightness between the lock washer spring (25) or the fastening force between the ring lock washer spring (25) and the pipe (165). I'm doing it.

However, these prior documents only aim to improve the convenience of installation work or airtightness, and do not include a structure to prevent accidents due to confusion in piping during the post-installation management process.

Therefore, there is a great need to develop technology to prevent confusion about pipes during the post-installation management process of gas pipes.

Therefore, the problem to be solved by the present invention is to provide an identification means that can distinguish the type of gas supplied, and to quickly recognize the leak while minimizing the gas leak to the outside when gas leaks from a gas pipe connector. To provide a gas pipe connector equipped with a leak detection means.

In order to achieve the above object, the present invention is a gas pipe connector that connects the ends of pipes supplying gas to each other, including a through hole into which a gas pipe can be inserted, and a nut for fixing the gas pipe inserted into the through hole. A connector body including a threaded groove into which the gas pipe can be inserted, a nut including a corresponding threaded groove capable of being fastened to the threaded groove of the connector body, and a through hole into which the gas pipe can be inserted. and a sealing member that is inserted between the nut and rotates and fastens to the connector body under pressure, thereby preventing the outflow of gas by closing the gap between the gas pipe and the connector body, and the nut has a surface Provided is a gas pipe connector that is colored so that the type of gas supplied to the gas pipe can be distinguished.

According to one embodiment of the present invention, the sealing member includes a first sealing member that contacts the inner surface of the connector body and receives pressure, and a second sealing member that contacts the inner surface of the nut and receives pressure, In the process of the nut rotating and being fastened to the connector body under pressure, the first sealing member and the second sealing member are deformed under pressure and close the gap between the gas pipe and the connector body, and the first sealing member In a deformed state of the member and the second sealing member, a first cavity is formed between the first sealing member and the screw groove of the nut, and a second cavity is formed between the first sealing member and the second sealing member. You can.

According to another embodiment of the present invention, a first gas hole is connected from the first cavity to the outside of the nut, and a color-changing material capable of changing color by reacting with gas is inserted into the first gas hole. You can.

According to another embodiment of the present invention, a window cap made of a transparent material may be further included to prevent gas leaking through the first gas hole from escaping to the outside of the nut.

According to another embodiment of the present invention, an O-ring for sealing between the nut and the gas pipe may be further included.

The gas pipe connector of the present invention has the following effects.

1. The nuts of the gas pipe connector are colored in different colors for each type of gas, preventing accidents due to pipe confusion during the installation and management of gas pipes.

2. The nut of the gas pipe connector contains a gas hole and discoloring material, allowing early detection of accidental gas leakage.

3. A window cap is installed in the gas hole of the gas pipe connector, and an O-ring is installed in the nut. In the event of a gas leak, gas leakage can be determined early while delaying the release of the leaked gas to the outside. there is.

4. A gas hole is formed to connect to the space between the nut of the gas pipe connector and the sealing member, and the detection sensitivity for leaked gas can be increased, and the timing and amount of gas leak can be predicted based on the degree of discoloration in different gas holes. there is.

1 shows the use of a gas pipe connector including a colored nut according to the present invention.
Figure 2 shows a gas pipe connector of the present invention.
Figure 3 is a diagram for explaining the detailed configuration of the gas pipe connector of the present invention.
Figure 4 is a cross-sectional structure showing the sealing structure of the gas pipe connector of the present invention.
Figure 5 shows the structure of the sealing member in the gas pipe connector of the present invention after the nut is completely fastened.
Figure 6 shows a gas type identification means formed on a nut in a gas pipe connector according to an embodiment of the present invention.
Figure 7 is a diagram for explaining the functions of the first gas hole and the color change material in the gas pipe connector according to one embodiment of the present invention.
Figure 8 shows a gas type identification means formed on the nut in a gas pipe connector according to another embodiment of the present invention.
Figure 9 is a diagram for explaining the functions of the second gas hole and the color change material in the gas pipe connector according to one embodiment of the present invention.

The present invention is a gas pipe connector that connects the ends of pipes supplying gas to each other, including a through hole into which a gas pipe can be inserted, and a threaded groove into which a nut fixing the gas pipe inserted into the through hole can be fastened. A connector body including a nut including a through hole into which the gas pipe can be inserted and a corresponding threaded groove that can be fastened to the threaded groove of the connector body, and a nut inserted between the connector body and the nut. As the nut rotates and is fastened to the connector body under pressure, it includes a sealing member that closes the gap between the gas pipe and the connector body to prevent gas leakage, and the nut has a colored surface and is supplied to the gas pipe. The types of gas can be distinguished.

The gas pipe connector of the present invention can prevent accidents due to confusion of gases by using nuts colored differently for each type of gas. The color of the nut can be set arbitrarily, and for example, as shown in Figure 1, it can be divided into red, yellow, blue, green, and metallic colors, and can be managed by grouping into flammable, corrosive, inert, water, and other gases. . In this way, gas pipe connectors coded by the color of the nut can prevent confusing connector fastening and disconnection from occurring due to operator error, and in particular, can effectively prevent toxic gases from leaking out.

In addition, the gas pipe connector of the present invention can prevent human and material accidents from occurring by detecting gas leaks early. For this purpose, gas holes are formed in the nut of the gas pipe connector so that leaked gas can accumulate in high concentration, and these gas holes are connected to cavities where gas leakage is likely to occur. The inside of the gas hole is filled with a color-changing material that changes color by reaction with gas, and a window cap made of transparent material is installed to prevent gas from leaking to the outside and to allow the color of the color-changing element to be confirmed from the outside.

The type of discoloring material may be one that discolors by reaction with a specific gas, for example, a material used as an acid-base indicator that reacts with an acidic gas, and the nut can be colored in a complementary color after discoloration. there is.

The present invention will be described in detail below using the drawings.

In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted. Throughout the specification, singular expressions should be understood to include plural expressions, unless the context clearly indicates otherwise, and terms such as “comprise” or “have” refer to the described features, numbers, steps, operations, or components. , it is intended to specify the existence of a part or a combination thereof, but should be understood as not excluding in advance the possibility of the existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. . In addition, when performing a method or manufacturing method, each process forming the method may occur differently from the specified order unless a specific order is clearly stated in the context. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the opposite order.

The technology disclosed in this specification is not limited to the implementation examples described herein and may be embodied in other forms. However, the implementation examples introduced here are provided to ensure that the disclosed content is thorough and complete and that the technical idea of the present technology can be sufficiently conveyed to those skilled in the art. In order to clearly express the components of each device in the drawing, the sizes of the components, such as width and thickness, are shown somewhat enlarged. When describing the drawing as a whole, it is described from the observer's point of view, and when an element is mentioned as being located above another element, this means that the element may be located directly above another element or that additional elements may be interposed between those elements. Includes. Additionally, those skilled in the art will be able to implement the idea of the present invention in various other forms without departing from the technical idea of the present invention. In addition, the same symbols in a plurality of drawings refer to substantially the same elements.

As used herein, the term 'and/or' includes a combination of a plurality of listed items or any of a plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

1 shows the use of a gas pipe connector including a colored nut according to the present invention. Referring to FIG. 1, the nuts of gas pipe connectors can be colored in red, yellow, blue, green, and metallic colors, and can be managed by grouping them into flammable, corrosive, inert, water, and other gases. For example, combustible gases such as NH3, PH3, SiH4, H4, LNG are colored in red, corrosive gases such as Cl4, BCl3, N2O are colored in yellow, water is colored in blue, Air, Ar, He, O2, CO2, SFe. , GN2, PN2, CHF3, NF3 can be colored green, and other gases can be used without coloring.

Figure 2 shows a gas pipe connector of the present invention. Referring to FIG. 2, the gas pipe connector 100 is connected to a gas pipe 200 on both sides, and the gas pipe 200 passes through nuts 110a and 110b and can be fixedly connected to the connector body 120.

Figure 3 is a diagram for explaining the detailed configuration of the gas pipe connector of the present invention. Referring to FIG. 3, the gas pipe connector 100 includes a connector body 120, nuts (110a, 110b), a first sealing member 131, and a second sealing member 132, and has gas pipes on both sides ( 200) is connected. The connector body 120 is formed with a through hole through which gas can pass, and includes a screw groove through which the nuts 110a and 110b can be connected. The nut 120 is formed with a through hole through which the gas pipe 200 passes, and has a threaded groove corresponding to the threaded groove of the connector body 120 formed therein, so that as the nut is fastened, pressure is applied to the sealing member. Sealing is achieved by deforming the sealing member while applying pressure. The first sealing member 131 has a truncated cone shape whose diameter becomes smaller in one direction so that it can be fastened along the inclination angle formed in the connector body 120. The second sealing member 132 has a relatively small diameter part inserted in the large diameter direction of the first sealing member 131 and a step having a relatively large diameter that can come into contact with the end of the first sealing member 131. The branch structure may be in the form of a ring. The gas pipe 200 can be connected to both sides of the gas pipe connector 100 to seal the two gas pipes.

The gas pipe connector of the present invention is sealed by connecting the gas pipe and tightening the nut, thereby deforming the sealing member and filling the gap between the gas pipe, the nut, and the connector body. At this time, the sealing member is deformed from its original shape by pressure, and when fully fastened, a cavity of a certain shape is formed between the nut, the gas pipe, and the connector body. This cavity becomes a space where gas stays before it leaks to the outside when a gas leak occurs, and in the present invention, a discoloring material is inserted into this space to enable early detection of gas leak.

Figure 4 is a cross-sectional structure showing the sealing structure of the gas pipe connector of the present invention. Figure 4 (b) shows a cross section in the X-X' direction of (a). Referring to FIG. 4, when the gas pipe 200 is connected to the gas pipe connector by fastening the nut 120, the first sealing member 131 and the second sealing member 132 located inside the nut 110a are deformed. This happens. When the internal thread groove of the nut 110a and the thread groove of the connector body 120 are engaged and the nut is fastened, the first sealing member 131 and the second sealing member inserted between the nut 110a and the connector body 120 ( 132) is deformed under pressure. When fastening is complete, the first sealing member 131 is deformed while receiving pressure between the connector body 120 and the second sealing member 132, and the space between the first sealing member 131 and the connector body 120 , the space between the first sealing member 131 and the second sealing member 132, the space between the first sealing member 131 and the inner surface of the nut 110a, the first sealing member 131 and the gas pipe 200 ) The space between them is sealed. In addition, the second sealing member 132 is also deformed by pressure, creating a space between the second sealing member 132 and the first sealing member 131, a space between the second sealing member 132 and the gas pipe 200, The space between the second sealing member 132 and the inner surface of the nut 110a is sealed. In this way, by fastening the nut, the gap formed between the gas pipe, the first sealing member, the second sealing member, the nut, and the connector is filled, and a high level of sealing can be achieved. At this time, the number of rotations of the nut required for complete connection and sealing can be set in advance, and the position and shape of the cavity formed inside the nut can also be determined according to this number of rotations.

Figure 5 shows the structure of the sealing member in the gas pipe connector of the present invention after the nut is completely fastened. Referring to FIG. 5, when the nut 110a is fastened to the connector body 120, the modified structures of the first sealing member 131 and the second sealing member 132 are as described in FIG. 4, and the nut 110a Inside, a cavity of a specific shape is formed at a specific location with reproducibility. The first cavity 141 is an empty space whose position and shape are determined by the end of the connector body 120, the first sealing member 131, and the screw groove surface of the nut 110a. The second cavity 142 is an empty space whose position and shape are determined by the inner surfaces of the first sealing member 131, the second sealing member 132, and the nut 110a. These first and second cavities become passages through which gas flows out when gas leaks from the gas pipe connector due to external shock or equipment failure. In the present invention, gas leakage can be detected early and with high accuracy by forming a gas hole that detects gas leakage by matching the first cavity and second cavity determined by complete tightening of the nut with the position inside the nut. The purpose.

Figure 6 shows a gas type identification means formed on a nut in a gas pipe connector according to an embodiment of the present invention. Referring to Figure 6, a first gas hole (151a) is formed in the nut (110a) of the gas pipe connector of the present invention, the inside of the first gas hole is filled with a discoloring material (152a), and a window cap ( 153a) is formed. The first gas hole is formed as a passage connecting the outside to the inside of the nut, and may be formed as one or more than one gas hole. The color-changing material is a material that changes color by reacting with gas and can be made of a color-changing material that reacts to acidity or basicity, a color-changing material that reacts to corrosive gas, etc., and various types of color-changing materials known before the application of this invention can be used. there is. The window cap may be made of a transparent material and may be made of a material that can seal the passage of the first gas hole. For example, resin such as polypropylene or fluoethylene may be used. An O-ring insertion portion is formed in the nut 110a, and an O-ring can be inserted into the insertion portion. The O-ring functions to seal the gap between the gas pipe and the nut. The gas leaking from the gas pipe connector is not leaked to the outside for a certain period of time due to the sealing member, O-ring, and window cap, but remains in the inner space of the nut and can discolor the discoloring material filled inside the first gas hole, which can then be exposed to the outside. This can be seen through the window cap.

Figure 7 is a diagram for explaining the functions of the first gas hole and the color change material in the gas pipe connector according to one embodiment of the present invention. Referring to FIG. 7, after the nut 110a is fastened to the connector body 120, the first gas hole 151a is connected to the second cavity 142. In order for gas to flow into the second cavity 142, the seal between the gas pipe 200 and the first sealing member 131 is destroyed, and at the same time, the seal between the first sealing member 131 and the second sealing member 132 is broken. Since it must also be destroyed, if discoloration of the color-changing material inserted into the first gas hole 151a is observed, a relatively strong level of sealing destruction has occurred. Therefore, in this case, more rapid repair measures are required.

Figure 8 shows a gas type identification means formed on the nut in a gas pipe connector according to another embodiment of the present invention. Referring to Figure 8, a second gas hole (151b) is formed in the nut (110a) of the gas pipe connector of the present invention, the inside of the first gas hole is filled with a discoloring material (152b), and a window cap ( 153b) is formed.

Figure 9 is a diagram for explaining the functions of the second gas hole and the color change material in the gas pipe connector according to one embodiment of the present invention. Referring to FIG. 9, after the nut 110a is fastened to the connector body 120, the second gas hole 151b is connected to the first cavity 141. In order for gas to flow into the first cavity 141, the seal between the gas pipe 200 and the first sealing member 131 or between the connector body 120 and the first sealing member 131 is broken. When discoloration of the color-changing material inserted into the second gas hole 151b is observed, a relatively weaker level of sealing destruction occurs than when discoloration of the color-changing material inserted into the first gas hole occurs. In this way, the timing and amount of gas leakage can be roughly estimated by determining whether the first gas hole and the second gas hole are discolored and the degree of discoloration, and considering the amount of gas that can leak indoors, the type and speed of work, etc. You can judge and take action.

The above description illustrates the technical idea of the present invention using an example of implementation, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. . Accordingly, the implementation examples described in the present invention are not intended to limit the technical idea of the present invention, but are for illustrating, and the scope of the technical idea of the present invention is not limited by these implementation examples. The scope of protection of the present invention should be interpreted in accordance with the claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

100: gas pipe connector 110a, 110b: nut
120: Connector body 131: First sealing member
132: second sealing member 141: first cavity
142: 2nd cavity 151a: 1st gas hole
151b: first gas hole 152a, 152b: discoloration material
153a, 153b: Window cap 154: O-ring
200: gas pipe

Claims (5)

In the gas pipe connector connecting the ends of the pipe supplying gas to each other,
A connector body including a through hole into which a gas pipe can be inserted, and a screw groove into which a nut fixing the gas pipe inserted into the through hole can be fastened;
a nut including a through hole into which the gas pipe can be inserted and a corresponding threaded groove that can be fastened to a threaded groove of the connector body; and
A sealing member that is inserted between the connector body and the nut and closes the gap between the gas pipe and the connector body to prevent gas from leaking as the nut rotates and is fastened to the connector body under pressure. ,
The nut has a colored surface so that the type of gas supplied to the gas pipe can be distinguished,
The sealing member consists of a first sealing member that contacts the inner surface of the connector body and receives pressure, and a second sealing member that contacts the inner surface of the nut and receives pressure,
In the process of the nut rotating and being fastened to the connector body under pressure, the first sealing member and the second sealing member are deformed under pressure and close the gap between the gas pipe and the connector body,
When the first sealing member and the second sealing member are deformed, a first cavity is formed between the first sealing member and the screw groove of the nut, and a second cavity is formed between the first sealing member and the second sealing member. A cavity is formed,
It includes a first gas hole connected from the first cavity to the outside of the nut,
A color-changing material that can change color by reacting with gas is inserted into the first gas hole,
It includes a second gas hole connected from the second cavity to the outside of the nut,
A color-changing material that can change color by reacting with gas is inserted into the second gas hole,
It further includes a window cap made of a transparent material to prevent gas leaking through the first gas hole from escaping to the outside of the nut,
A gas pipe connector further comprising an O-ring for sealing between the nut and the gas pipe. delete delete delete delete