The pipe coupling seal arrangement
One, technical field the utility model belongs to the technical field of sealing technology of pipe coupling or flange, particularly relates to a kind of pipe coupling seal arrangement.
Two, background technique is in petroleum and petrochemical industry is produced, continuous development along with modern times oil recovery, oil refining, chemical engineering industry, various piping flanges are in continuous increase, but often because manufacturing, use, selection, maintenance are improper, the run, drip, leak phenomenon takes place in the work easily, cause energy waste, equipment corrosion, environmental pollution thus, even cause accidents such as stopping production.
Three, the summary of the invention the purpose of this utility model provides a kind of pipe coupling seal arrangement, solved pipe coupling, the leakage problem of flange or pipeline, it comprises interior convex method thimble hoop, matrix method button, rubber injecting valve and nut, be provided with groove in pipe coupling, pipe coupling end and interior convex hoop offset, between pipe coupling end and interior convex hoop, be provided with the O grommet type seal, matrix method button offsets by groove and pipe coupling, matrix method button is made up of two parts symmetrical, two-part dock by tongue-and-groove, matrix method button two ends are provided with outside thread, and be connected with nut, buckle in the matrix method and to be provided with 2～8 sealing compound filler ports, sealing compound filler port pass is inner small and outside big, in macropore, be provided with internal thread, and be connected with rubber injecting valve by screw thread, the utility model is in pipe coupling, flange has connected exterior design sealed cavity, employing is greater than the external thrust of pressure medium in the system, to have flowability, enhancing property, puffing, the sealing compound of stability is filled with sealed cavity, sealing compound is expanded under certain conditions, solidify, and in new secondary seal structure of outside, pipe coupling position formation, good sealing effect, simple in structure, be easy to dismounting, reliable performance, can not destroy the pipe coupling in the process units, flange arrangement, can in time get rid of accident potential, avoid stopping production, reduce environmental pollution.
Four, description of drawings Fig. 1 is the utility model pipe coupling schematic diagram of sealing device;
Fig. 2 is the utility model injecting valve arrangement schematic representation.
Five, embodiment is described further the utility model pipe coupling seal arrangement below in conjunction with Fig. 1 and Fig. 2, it comprises interior convex method thimble hoop 7, matrix method button 4, rubber injecting valve 9 and nut 2, be provided with groove 3 in pipe coupling 1, pipe coupling 1 end and interior convex hoop 7 offset, and by convex method thimble hoop 7 in 4 clampings of matrix method button, between pipe coupling 1 end and interior convex hoop 7, be provided with O grommet type seal 8, matrix method button 4 offsets by groove 3 and pipe coupling 1, the matrix method button 4 flanges groove 3 that links closely, matrix method button 4 is made up of two parts symmetrical, two-part dock by tongue-and-groove, matrix method button 4 two ends are provided with outside thread, and be connected with nut 2, matrix method button 4 is provided with 2～8 sealing compound filler ports 5, sealing compound filler port 5 passes are inner small and outside big, in macropore, be provided with internal thread, and be connected with rubber injecting valve 9 by screw thread, sealing compound is by rubber injecting valve 9, injecting filler port 5 injects sealed cavity 6, the convex method thimble hoop in comprising 7 and the connection part of matrix method button 4 and pipe coupling 1 are implemented to be higher than the sealing of system pressure, stopped race, emit, phenomenons such as leakage take place, and guarantee the use of equipment long-term safety.