Anti-corrosion connecting device for gas pipeline

Abstract

The utility model discloses a gas pipeline anti-corrosion connecting device which comprises a pipeline, a connecting pipe is installed at the connecting position of the pipeline and another pipeline, connecting openings are formed in the two ends of the connecting pipe, the pipeline connecting openings comprise connecting heads and butt joint rings, the butt joint rings are fixedly connected with the connecting pipe, and the other ends of the butt joint rings are fixedly connected with the connecting heads. The butt joint ring is made of anti-corrosion materials, when the pipeline is connected with the connecting pipe, the opening end of the pipeline is located on the inner wall of the butt joint ring, the butt joint ring fixedly connected between the connecting pipe and the connector is used for separating the head end of the opening of the pipeline from the metal connecting pipe, and the abraded part of the opening part of the pipeline cannot make contact with the connecting pipe in the connecting process. The check ring can abut against the cross section of the pipe opening, the contact area of the cross section of the pipeline and air is reduced, and therefore the situation that the gas pipeline is corroded is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas pipeline field, more specifically, it relates to a gas pipeline connecting device. BACKGROUND

[0002] With the acceleration of urbanization, as an important part of urban infrastructure, the safety and stability of gas pipeline are directly related to the quality of life and life and property safety of residents, and the gas pipeline is easily affected by various factors during use, and corrosion is one of the most prominent problems, usually the gas pipeline is installed underground, and the underground environment is often very humid, in order to deal with the situation, the surface is sprayed with anticorrosive paint and the like for corrosion and rust prevention.

[0003] Between the pipeline and the pipeline, the pipeline and the connecting cylinder are usually connected, in order to make the connection between the two more stable, the threaded connection is usually used for connection, but when the thread rotates, the position of the thread of the connecting pipe and the pipeline is rubbed more or less, so that the coating is peeled off, and after a long time, the coating of the connecting pipe is peeled off, which causes the corrosion of the material in the pipeline.

[0004] Therefore, a new technical scheme is needed to solve the above problems. INVENTION CONTENTS

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a gas pipeline corrosion prevention connecting device.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a pipeline is provided with a connecting pipe at the connecting position between the pipeline and another pipeline, the connecting pipe is provided with connecting ports at both ends, the pipeline at the connecting port comprises a connecting head and a butt joint ring, the butt joint ring is fixedly connected with the connecting pipe, the other end of the butt joint ring is fixedly connected with the connecting head, the butt joint ring is made of corrosion-resistant material, and the open end of the pipeline is located at the inner wall of the butt joint ring when the pipeline is connected with the connecting pipe.

[0007] By adopting the above technical scheme, the device is mainly used for the connecting pipe between the pipeline and another pipeline, so that the two pipelines are connected through the connecting pipe, and the alloy material with high strength and corrosion resistance is usually used for the pipeline and the connecting pipe, and a coating is coated on the surface, the coating is peeled off due to friction during pipeline connection, the pipeline subjected to friction is accelerated to be eroded, so that the connecting pipe is eroded, and finally the pipeline is broken, a butt joint ring made of corrosion-resistant material is fixedly connected between the connecting pipe and the connecting head, the head end of the eroded pipeline is prevented from contacting the connecting port, so that the spread of corrosion is prevented.

[0008] The utility model further sets up: the inner wall of connecting head is equipped with thread groove, the pipeline is connected with the connecting head thread.

[0009] Through adopting above technical scheme, connecting head and pipeline mouth are connected through thread, and thread connection can make the connection between connecting pipe and pipeline more stable.

[0010] The utility model further sets up: the material of butt joint ring is silicon dioxide.

[0011] Through adopting above technical scheme, silicon dioxide has stability, and its material will not be affected by rust to cause corrosion effect.

[0012] The utility model further sets up: the inner fixed connection of butt joint ring has the baffle ring.

[0013] Through adopting above technical scheme, the baffle ring in butt joint ring is used to isolate pipeline opening and connecting pipe inner wall, and the baffle ring can resist pipe mouth cross section part, reduces the area of pipeline cross section and air contact.

[0014] The utility model further sets up: the length of butt joint ring is shorter than the length of connecting head.

[0015] Through adopting above technical scheme, butt joint ring is mainly used for isolation, so the design is shorter than connecting head.

[0016] The utility model further sets up: the top of connecting pipe is equipped with valve, and the unit of gas in connecting pipe can be controlled through valve.

[0017] Through adopting above technical scheme, valve is used to control the flow rate of gas between pipeline and pipeline.

[0018] Summarized above, the utility model has the following beneficial effects: through the butt joint ring fixedly connected between connecting pipe and connecting head, the pipe opening head end and metal connecting pipe are isolated, the part of pipeline mouth is not contacted with connecting pipe when connecting, and the baffle ring can resist pipe mouth cross section part, reduces the area of pipeline cross section and air contact, thereby the corrosion of gas pipeline is reduced. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the structural schematic drawing of the utility model;

[0020] Figure 2 It is the explosion drawing of the pipeline connecting head of the utility model.

[0021] In the drawing: 1, connecting pipe;11, valve;12, connecting head;121, thread;13, butt joint ring;131, baffle ring;2, pipeline. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0023] Gas pipeline corrosion protection connection device, such as Figure 1 As shown, the system includes a pipe 2, and a connecting pipe 1 is installed at the connection between the pipe 2 and another pipe 2. The connecting pipe 1 has connection ports at both ends. The pipe 2 at the connection port includes a connector 12 and a mating ring 13. The mating ring 13 and the connector 12 are located at the opening of the connecting pipe 1. The mating ring 13 has a groove, and a rubber ring is fitted inside the groove. The mating ring 13 is fixedly connected to the connecting pipe 1. The other end of the mating ring 13 is fixedly connected to the connector 12. The mating ring 13 is made of corrosion-resistant material. When the pipe 2 is connected to the connecting pipe 1, the opening end of the pipe 2 is located on the inner wall of the mating ring 13. A valve 11 is installed at the top of the connecting pipe 1, and the valve 11 controls the amount of gas that can pass through the connecting pipe 1.

[0024] like Figure 2 As shown, the inner wall of the connector 12 has a threaded groove, the pipe 2 is threadedly connected to the connector 12, the mating ring 13 is made of silicon dioxide, a retaining ring 131 is fixedly connected inside the mating ring 13, and the length of the mating ring 13 is shorter than the length of the connector 12.

[0025] The device is mainly used for connecting pipe 1 between pipe 2 and another pipe 2, so that the two pipes 2 are connected through the connecting pipe 1. Generally, the pipe 2 and the connecting pipe 1 use high-strength and corrosion-resistant alloy materials, and are coated with a coating on the surface. When the pipe 2 is connected, the coating will fall off due to friction, and the pipe 2 subjected to friction will accelerate the erosion speed, thereby causing the connecting pipe 1 to be eroded, and finally the pipe 2 is broken. A butt ring 13 made of a material that is not susceptible to corrosion, such as silicon dioxide, is fixedly connected between the connecting pipe 1 and the connector 12. Silicon dioxide has stability and is not easily reacted with external substances. A ring-shaped stop ring 131 is installed on the inner wall of the butt ring 13. The stop ring 131 in the butt ring 13 is used to isolate the opening of the pipe 2 from the inner wall of the connecting pipe 1. Moreover, the stop ring 131 can abut against the pipe opening cross-section portion, thereby reducing the area of the pipe 2 cross-section portion in contact with air. The design of the stop ring 131 can effectively prevent the head end of the pipe 2 subjected to erosion from contacting the connecting port, thereby preventing the spread of erosion. The function of the butt ring 13 is to isolate the contact between different metals, so the length of the butt ring 13 is shorter than that of the connector 12. The connector 12 and the pipe 2 are connected through the threads 121 formed on the inner wall of the connector 12. The threaded connection can better stabilize the connection between the pipe 2 and the connecting pipe 1, thereby reducing the probability of falling off. When the pipe 2 and another pipe 2 are connected through the connecting pipe 1, the two pipes 2 are spirally connected to the two connectors 12. When the pipe 2 cross-section portion is in contact with the stop ring 131, the installation is completed. The gas flows from the pipe 2 to another pipe 2 through the connecting pipe 1, and it is difficult for the gas with water vapor to contact the pipe 2 subjected to friction and cause erosion.

[0026] A valve 11 is arranged at the top end of the connecting pipe 1. The valve 11 is used to control the unit of gas that can pass through the connecting pipe 1. The valve 11 is used to control the flow rate of gas between the pipe 2 and the pipe 2.

[0027] The above is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application is within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application are also considered as the protection scope of the present application.

Claims

1. A gas pipeline anti-corrosion connection device, comprising a pipeline (2), wherein a connecting pipe (1) is installed at the connection between the pipeline (2) and another pipeline (2), characterized in that: The connecting pipe (1) has connection ports at both ends. The pipe (2) located at the connection port includes a connector (12) and a mating ring (13). The mating ring (13) and the connector (12) are located at the opening of the connecting pipe (1). The mating ring (13) has a groove inside. A rubber ring is fitted inside the groove. The mating ring (13) is made of corrosion-resistant material. When the pipe (2) is connected to the connecting pipe (1), the opening end of the pipe (2) is located at the groove of the mating ring (13).

2. The gas pipeline anti-corrosion connection device according to claim 1, characterized in that: The inner wall of the connector (12) is provided with a threaded groove, and the pipe (2) is threadedly connected to the connector (12).

3. The gas pipeline anti-corrosion connection device according to claim 1, characterized in that: The material of the docking ring (13) is silicon dioxide.

4. The gas pipeline anti-corrosion connection device according to claim 1, characterized in that: A retaining ring (131) is fixedly connected inside the docking ring (13).

5. The gas pipeline anti-corrosion connection device according to claim 1, characterized in that: The length of the mating ring (13) is shorter than the length of the connector (12).

6. The gas pipeline anti-corrosion connection device according to claim 1, characterized in that: A valve (11) is installed at the top of the connecting pipe (1), and the valve (11) controls the amount of gas that can pass through the connecting pipe (1).

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