CN204554199U - Socket joint jointing type elbow - Google Patents

Abstract

The utility model relates to a socket connection type elbow, which includes an equal-diameter elbow, and is characterized in that: the outer surface of the socket steel pipe is provided with at least two annular grooves for arranging the sealing ring, and the two ends of the socket steel pipe are respectively It is the socket end and the welding end. The outside of the socket steel pipe is provided with a tapered surface. One end of the equal diameter elbow is welded and fixed to the welding end of the socket steel pipe, and the other end is welded and fixed to the small end of the trumpet-shaped socket. . Its connection structure is: the spigot steel pipe of the front steel pipe is inserted into the trumpet-shaped socket of the socket-connected elbow, and the sealing ring arranged on it is in sealing contact with the trumpet-shaped socket of the socket-connected elbow, and the socket The socket steel pipe of the connecting elbow is inserted into the trumpet-shaped socket of the rear steel pipe, and is in sealing contact with the trumpet-shaped socket of the rear steel pipe through the sealing ring provided thereon.

Description

Socket connection elbow

technical field

The utility model relates to the field of pipelines, which is a socket connection type elbow.

Background technique

Pipeline transportation is a long-distance transport method of transporting liquid and gas materials using pipelines as a means of transportation. Transportation has the advantages of less energy consumption, low cost and good benefits. Pipes and elbows are the main components of pipelines. There are several types of pipes and elbows according to their materials, such as steel pipes, cast iron pipes, reinforced concrete pipes, and non-metallic pipes. The connection methods include socket connections, flange connections, welding, and bonding. , Socket connection is a convenient, fast, safe and efficient connection method in pipe connection. The socket connection of the prior art is only applied to the connection between pipes. For the connection between the elbow and the pipe, a non-detachable structure is also adopted by welding. When the elbow is welded to the pipe, the pipe is not well connected, and the welding is not good. Especially the bottom welding is very difficult, prone to air leakage, water leakage, inconvenient maintenance, affecting the overall construction quality of the pipeline.

Utility model content

The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art, and provide a socket connection elbow with simple structure, high sealing reliability, quick installation, and convenient maintenance and disassembly.

The solution to the technical problem of the utility model is: a socket connection type elbow, which includes an equal-diameter elbow, and is characterized in that: the outer surface of the socket steel pipe is provided with at least two annular recesses for arranging the sealing ring The two ends of the socket steel pipe are the insertion end and the welding end respectively. The outside of the insertion end of the socket steel pipe is provided with a tapered surface. The small mouth end of the socket is welded and fixed.

An annular turning groove is also provided on the conical surface of the socket steel pipe insertion end.

The socket-connected elbow has a nickel-plated surface as an anti-corrosion protection layer.

The diameter of the equal diameter elbow is φ75㎜～φ3000㎜, and the length is 7m～12m.

The connection structure between the socket connection elbow and the adjacent front steel pipe and rear steel pipe is: the socket of the front steel pipe is inserted into the trumpet-shaped socket of the socket connection elbow, and the seal provided on it The ring is in sealing contact with the trumpet-shaped socket of the socket connection elbow, and the socket steel pipe of the socket connection elbow is inserted into the socket of the rear steel pipe, and is in sealing contact with the socket of the rear steel pipe through the sealing ring arranged on it.

The steel pipe with socket of the utility model adopts the sealing connection mode of socket and socket and double sealing ring, and the nickel-plated layer on the surface can meet the transportation requirements of liquid food, and has the advantages of simple structure, high sealing reliability and quick installation. Easy maintenance and disassembly, long service life and other advantages.

Description of drawings

Fig. 1 is the structural schematic diagram of socket connection type elbow of the present utility model;

Fig. 2 is a structural schematic diagram of the embodiment.

In the figure: 1 trumpet-shaped socket, 2 equal diameter elbow, 3 socket steel pipe, 4 sealing ring, 5 tapered surface, 6 rear steel pipe, 7 front steel pipe.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1 and Fig. 2, the utility model is a socket connection type elbow, which includes an equal-diameter elbow 2, and is characterized in that: the outer surface of the socket steel pipe 3 is provided with at least two seal rings 4 The two ends of the socket steel pipe 3 are the insertion end and the welding end respectively, the outside of the insertion end of the socket steel pipe 3 is provided with a tapered surface 5, and one end of the equal diameter elbow 2 is welded to the welding end of the socket steel pipe 3 Fixedly connected, the other end is welded and fixedly connected with the small mouth end of the trumpet-shaped socket 1. The conical surface 5 of the plug-in end of the socket steel pipe 3 is also provided with an annular turning groove. The socket-connected elbow has a nickel-plated surface as an anti-corrosion protection layer. The diameter of the equal diameter elbow 2 is φ75㎜～φ3000㎜, and the length is 7m～12m. The utility model adopts prior art manufacture.

This embodiment is a socket connection type nickel-plated elbow of φ508. The connection structure between the socket connection type elbow and the adjacent front steel pipe 7 and rear steel pipe 6 is: the socket of the front steel pipe 7 It is inserted into the bell-shaped socket 1 of the socket-and-socket connection elbow, and is in sealing contact with the bell-shaped socket 1 of the socket-and-socket connection elbow through the sealing ring 4 provided on it. The socket steel pipe 3 of the socket-and-socket connection elbow It is inserted into the socket of the adjacent rear steel pipe 6, and is in sealing contact with the socket of the rear steel pipe 6 through the sealing ring 4 provided thereon.

Claims (4)

1. a socket joint jointing type elbow, it comprises iso-diameter elbow, it is characterized in that: the outer surface of socket steel pipe be provided with at least twice for settling the annular groove of seal ring, the two ends of socket steel pipe are respectively bayonet end and welding ends, be provided with conical surface outside the bayonet end of socket steel pipe, one end of iso-diameter elbow weld with the welding ends of socket steel pipe be connected, the other end welds with the osculum end of horn-like bellmouth and is connected.

2. socket joint jointing type elbow as claimed in claim 1, is characterized in that: the turned welt groove conical surface of described socket steel pipe bayonet end being also provided with one annular.

3. socket joint jointing type elbow as claimed in claim 1, is characterized in that: described socket joint jointing type elbow is using plated surface nickel dam as corrosion protective covering.

4. socket joint jointing type elbow as claimed in claim 1, is characterized in that: the bore of described iso-diameter elbow is φ 75 ㎜ ~ φ 3000 ㎜, and length is 7m ~ 12m.