CN-224201545-U - Gas pipeline leakage-proof mechanical sealing device

Abstract

The utility model belongs to the technical field of gas pipelines, in particular to a gas pipeline leakage-proof mechanical sealing device which comprises a first pipeline and a second pipeline, wherein connecting ends of the first pipeline and the second pipeline are welded and formed, a first fixing ring is fixedly connected to the outer side wall of the first pipeline, a first L-shaped rod is fixedly connected to the side wall of the first fixing ring, the other end of the first L-shaped rod is fixedly connected to the outer side wall of the first pipeline, a first circular through groove is formed in the first fixing ring, a first circular ring plate is connected in the first circular through groove in a sealing sliding manner, a second fixing ring is fixedly connected to the outer side wall of the second pipeline, a second L-shaped rod is fixedly connected to the side wall of the second fixing ring, and the other end of the second L-shaped rod is fixedly connected to the outer side wall of the second pipeline.

Inventors

• Gan Luxun
• XIE GUO
• ZHENG LIANG

Assignees

• 成都银恺新能源科技有限公司

Dates

Publication Date

20260505

Application Date

20250624

Claims (6)

1. 1. A gas pipeline leakage-proof mechanical sealing device is characterized by comprising a first pipeline and a second pipeline, wherein the connecting ends of the first pipeline and the second pipeline are welded and formed, a first fixing ring is fixedly connected to the outer side wall of the first pipeline, a first L-shaped rod is fixedly connected to the side wall of the first fixing ring, the other end of the first L-shaped rod is fixedly connected to the outer side wall of the first pipeline, a first circular through groove is formed in the first fixing ring, a first circular ring plate is connected in the first circular through groove in a sealing sliding mode, a second fixing ring is fixedly connected to the outer side wall of the second pipeline, a second L-shaped rod is fixedly connected to the side wall of the second fixing ring, the other end of the second L-shaped rod is fixedly connected to the outer side wall of the second pipeline, a second circular through groove is formed in the second fixing ring, a second circular through plate is connected in a sealing sliding mode in the second circular through groove, the first circular ring plate and the second circular ring plate are respectively arranged on the first fixing ring and the side wall of the second fixing ring through a first sealing piece, and the second circular ring plate is arranged between the first circular plate and the second circular ring plate through a second sealing piece.
2. 2. The gas pipeline leakage-proof mechanical sealing device is characterized in that the first sealing piece comprises a first circular arc groove and a second circular arc groove, the first circular arc groove is formed in the side wall of the first fixing ring and is communicated with the first circular through groove, the second circular arc groove is formed in the side wall of the second fixing ring and is communicated with the second circular through groove, a first annular column is fixedly connected to the end portion of the first annular plate, a second annular column is fixedly connected to the end portion of the second annular plate, rubber layers are fixedly connected to the outer side walls of the first annular column and the second annular column, and the first annular column and the second annular column are mounted on the side walls of the first fixing ring and the second fixing ring through bolts respectively.
3. 3. The gas pipeline leakage prevention mechanical sealing device according to claim 2, wherein the second sealing piece comprises an arc groove, a group of arc grooves are formed in the side wall of the end portion of the first circular plate, a group of arc protruding blocks are fixedly connected to the side wall of the end portion of the second circular plate, and a rubber layer is fixedly connected to the outer side wall of the arc protruding blocks.
4. 4. The gas pipeline leakage-proof mechanical sealing device according to claim 3 is characterized in that a first cavity is formed in each of the first annular plate and the second annular plate, an air inlet hole is formed in the bottom end of the first cavity, a communication groove is formed in the top end of the first cavity, and a measuring piece is arranged in the first cavity.
5. 5. The mechanical sealing device for preventing leakage of a gas pipeline according to claim 4, wherein the measuring piece comprises a jack post, an airtight elastic layer is fixedly connected in the first cavity, the jack post is fixedly connected to the top end of the airtight elastic layer, and the jack post extends out through the communication groove.
6. 6. The mechanical sealing device for preventing leakage of a gas pipeline according to claim 5, wherein the outer side wall of the second circular plate is provided with an air tap.

Description

Gas pipeline leakage-proof mechanical sealing device Technical Field The utility model belongs to the technical field of gas pipelines, and particularly relates to a gas pipeline leakage-proof mechanical sealing device. Background The gas pipeline consists of pipeline body, valve, connecting part and auxiliary facilities, and has pressure-proof and sealing conveying system for distributing gas from gas source, such as gas field and liquefying station, to industrial, commercial and civil terminals. In the prior art, when the gas pipeline is installed in an extending mode, pipeline welding is generally needed, but when the gas pipeline is detected to leak gas, the position where the gas leakage is detected is mostly the pipeline connection welding position, and the detection is inconvenient. Therefore, the utility model provides a gas pipeline leakage-proof mechanical sealing device. Disclosure of utility model In order to make up for the deficiencies of the prior art, the problems presented in the background art are solved. The technical scheme includes that the gas pipeline leakage-proof mechanical sealing device comprises a first pipeline and a second pipeline, the connecting ends of the first pipeline and the second pipeline are welded and formed, a first fixing ring is fixedly connected to the outer side wall of the first pipeline, a first L-shaped rod is fixedly connected to the side wall of the first fixing ring, the other end of the first L-shaped rod is fixedly connected to the outer side wall of the first pipeline, a first circular through groove is formed in the first fixing ring, a first circular plate is connected in the first circular through groove in a sealing sliding mode, a second fixing ring is fixedly connected to the outer side wall of the second pipeline, a second L-shaped rod is fixedly connected to the side wall of the second fixing ring, the other end of the second L-shaped rod is fixedly connected to the outer side wall of the second pipeline, a second circular through groove is formed in the second circular through groove, a second circular plate is connected in a sealing sliding mode, and the first circular plate and the second circular plate are respectively arranged between the first fixing ring and the second fixing ring through a first sealing piece and the second sealing piece. The first sealing piece comprises a first circular arc groove and a second circular arc groove, wherein the side wall of the first fixed ring is provided with the first circular arc groove which is communicated with the first circular through groove, the side wall of the second fixed ring is provided with the second circular arc groove which is communicated with the second circular through groove, the end part of the first circular ring plate is fixedly connected with a first annular column, the end part of the second circular ring plate is fixedly connected with a second annular column, the outer side walls of the first annular column and the second annular column are fixedly connected with rubber layers, and the first annular column and the second annular column are respectively arranged on the side walls of the first fixed ring and the second fixed ring through bolts. Preferably, the second sealing piece comprises an arc groove, a group of arc grooves are formed in the side wall of the end part of the first circular plate, a group of arc protruding blocks are fixedly connected to the side wall of the end part of the second circular plate, and a rubber layer is fixedly connected to the outer side wall of each arc protruding block. Preferably, a first cavity is formed in each of the first annular plate and the second annular plate, an air inlet is formed in the bottom end of the first cavity, a communication groove is formed in the top end of the first cavity, and a measuring piece is arranged in the first cavity. Preferably, the measuring piece comprises a jacking column, an airtight elastic layer is fixedly connected in the first cavity, the jacking column is fixedly connected to the top end of the airtight elastic layer, and the jacking column extends out through the communication groove. Preferably, the outer side wall of the second annular plate is provided with an air tap. The beneficial effects of the utility model are as follows: 1. According to the gas pipeline leakage-proof mechanical sealing device, the first annular column and the second annular column are pushed at the welding position of the first pipeline and the second pipeline, the first annular plate and the second annular plate are mutually attached, the arc convex blocks are inserted into the arc grooves, meanwhile, the first annular column is inserted into the first arc grooves, the second annular column is inserted into the second arc grooves, then the first annular column is fixed through bolts, meanwhile, the mechanical sealing operation is carried out on the welding seam connection position through the arrangement of the rubber