CN104565661A

CN104565661A - Sealing pipe plug

Info

Publication number: CN104565661A
Application number: CN201310528612.3A
Authority: CN
Inventors: 赵登东
Original assignee: Individual
Current assignee: Harbin Electric Group Qinhuangdao Heavy Equipment Co Ltd
Priority date: 2013-10-25
Filing date: 2013-10-25
Publication date: 2015-04-29
Anticipated expiration: 2033-10-25
Also published as: CN104565661B

Abstract

The invention discloses a sealing pipe plug, which is mainly used for blocking and sealing gas or liquid medium pipelines and container nozzles with low pressures. For example, during packaging and transportation of pressure containers, the containers need to be filled with nitrogen or inert gas to protect the pressure containers, and the nozzles can be blocked easily and rapidly through the sealing pipe plug. According to the sealing principle, compression force on an inner ring plate, a middle ring plate and an outer ring plate is generated through a pre-tightening bolt, a sealing rubber ring is extruded by two ring plates, and meanwhile the sealing rubber ring is prevented from expanding inwards and is driven to expand outwards through a support ring, so that a sealing effect is achieved.

Description

Sealing pipe close

1. technical field:

This device sealing pipe close is mainly used in shutoff and the sealing of the not high gas of pressure or liquid medium pipeline and container adapter.Such as: pressurized container, in packed and transported process, needs in container, be filled with nitrogen or inert gas, play the effect of protection pressurized container, container tube joint needs shutoff and seals, and adopts this device, simple and fast, does not damage mother metal.

2. background technique:

The shutoff of the pipeline of gas or liquid medium and container adapter and sealing, main employing welds closure plate, air bag and plug etc.Welding closure plate is for interim shutoff and sealing, and inconvenient operation on the one hand, damages mother metal, on the other hand particularly for some special materials.Air sac sealing, air bag is pressure parts inherently, and easy breakage causes the injury of personnel.Plug seals, better for small takeover sealing effect, but for large sealing of taking over, needs larger pretightening force, bear less shutoff counterpressure.

3. summary of the invention:

Contrive equipment is sealing pipe close, and can be applied to pipeline and the adapter of various metal and nonmetallic material, using scope is more extensive.This device is simple and quick, adopts multiple-sealed, good sealing effect, and be specially adapted to interim shutoff and sealing, Security is higher.This sealing pipe close is reusable, need only change sealing rubber ring, greatly can reduce user cost like this.

4. accompanying drawing illustrates:

Fig. 1 is that sealing pipe close (≤DN100 adapter or pipeline) is always schemed; Fig. 2 is the B direction view of Fig. 1; Fig. 3 is Fig. 1 " A-A " sectional view; Fig. 4 is part 1 inner ring plate parts drawing in Fig. 1; Fig. 5 is part 2 supporting ring parts drawing in Fig. 1; Fig. 6 is the middle ring flat-plate parts drawing of part 3 in Fig. 1; Fig. 7 is part 4 outer ring plate parts drawing in Fig. 1; Fig. 8 is part 5 sealing rubber ring parts drawing in Fig. 1; Fig. 9 is title block and the item block that Fig. 1 seals pipe close (≤DN100 adapter or pipeline) total figure.Fig. 1 seals pipe close (≤DN100 adapter or pipeline) and is made up of inner ring plate (1), supporting ring (2), middle ring flat-plate (3), outer ring plate (4), sealing rubber ring (5), clamping bolt (6) and nut (7), clamping bolt (6) end adopts square head structure, the other end welds with inner ring plate, use spanner clamping square toes when tightening nut (7), prevent nut from rotation process, driving bolt and seal arrangement unitary rotation.Element size in Fig. 1, material and parts quantity are only reference, and actual conditions need be determined according to pipeline or the size of adapter and the operating conditions of material and equipment and medium kind.

Figure 10 is that sealing pipe close (> DN100 takes over or pipeline) is always schemed; Figure 11 is the B direction view of Figure 10; Figure 12 is Figure 10 " A-A " sectional view; Figure 13 is Figure 10 " I " partial enlarged drawing; Figure 14 is title block and the item block that Figure 10 seals pipe close (> DN100 takes over or pipeline) total figure; Figure 15 is part 1 inner ring plate parts drawing in Figure 10; Figure 16 is part 2 internal support shaped part figure in Figure 10; Figure 17 is Figure 16 " A-A " sectional view; Figure 18 is the middle ring flat-plate parts drawing of part 3 in Figure 10; Figure 19 is Figure 18 " B-B " sectional view; Figure 20 is part 4 outer ring plate parts drawing in Figure 10; Figure 21 is Figure 20 " C-C " sectional view; Figure 22 is part 5 sealing rubber ring parts drawing in Figure 10; Figure 23 is part 8 seal ring parts drawing in Figure 10; Figure 24 is part 9 external support shaped part figure in Figure 10; Figure 25 is Figure 24 " D-D " sectional view.Figure 10 seals pipe close (> DN100 takes over or pipeline) and is made up of inner ring plate (1), internal support ring (2), middle ring flat-plate (3) outer ring plate (4), sealing rubber ring (5), clamping bolt (6), nut (7), seal ring (8) and external support ring (9), clamping bolt (6) end adopts square head structure, the other end welds with inner ring plate, use spanner clamping square toes when tightening nut (7), prevent nut from rotation process, driving bolt and seal arrangement unitary rotation.Element size in Figure 10, material and parts quantity are only reference, and actual conditions need be determined according to pipeline or the size of adapter and the operating conditions of material and equipment and medium kind.

5. embodiment

The sealing that Fig. 1 seals pipe close (≤DN100 adapter or pipeline) mainly produces the impacting force to inner ring plate (1), middle ring flat-plate (3) and outer ring plate (4) by pretension bolt, make two ring flat-plate crush seal rubber rings (5), supporting ring (2) prevents sealing rubber ring (5) from expanding inwards simultaneously, impel sealing rubber ring (5) outwards to expand, reach sealing adapter or the leakage between pipeline and sealing rubber ring.Sealing rubber ring (5), under two ring flat-plate squeezing actions, reaches the leakage between sealing ring flat-plate and sealing rubber ring.

The sealing that Figure 10 seals pipe close (> DN100 takes over or pipeline) mainly produces the impacting force to inner ring plate (1), middle ring flat-plate (3) and outer ring plate (4) by pretension bolt, make two ring flat-plate crush seal rubber rings (5), internal support ring (2) and external support ring (9) prevent sealing rubber ring (5) from expanding inwards simultaneously, impel sealing rubber ring (5) outwards to expand, reach sealing adapter or leakage between pipeline and sealing rubber ring.Sealing rubber ring (5), under two ring flat-plate squeezing actions, reaches leakage between sealing ring flat-plate and sealing rubber ring.The effect of secondary seal is played, further enhanced leaktightness guarantee near pipeline or the seal ring (8) between adapter outer side seal rubber ring (5) and two ring flat-plates.

The medium Maximum operating pressure that sealing pipe close can bear can be determined by rough estimation and experiment.Computational methods mainly calculate the impacting force of two ring flat-plates to sealing rubber ring by the pretightening force of bolt, then the amount of deformation of sealing rubber ring is determined, pass through the pressure that Deformation calculation sealing rubber ring produces pipeline or adapter again, pressure is multiplied by the friction factor of rubber and adapter or pipeline, so just calculates the medium back pressure power that sealing pipe close can bear.

Claims

1. small takeover or pipeline (adapter of below DN100 or pipeline) seal pipe close by inner ring plate (1), supporting ring (2), middle ring flat-plate (3) outer ring plate (4), sealing rubber ring (5), clamping bolt (6) and nut (7) composition, it is characterized in that being produced inner ring plate (1) by pretension bolt, the impacting force of middle ring flat-plate (3) and outer ring plate (4), make two ring flat-plate crush seal rubber rings (5), supporting ring (2) prevents sealing rubber ring (5) from expanding inwards simultaneously, sealing rubber ring (5) is impelled outwards to expand, thus play seal action.

2. large adapter or pipeline (adapter of more than DN100 or pipeline) seal pipe close by inner ring plate (1), internal support ring (2), middle ring flat-plate (3) outer ring plate (4), sealing rubber ring (5), clamping bolt (6), nut (7), seal ring (8) and external support ring (9) composition, it is characterized in that being produced inner ring plate (1) by pretension bolt, the impacting force of middle ring flat-plate (3) and outer ring plate (4), make two ring flat-plate crush seal rubber rings (5), internal support ring (2) and external support ring (9) prevent sealing rubber ring (5) from expanding inwards simultaneously, sealing rubber ring (5) is impelled outwards to expand, thus play seal action, the effect of secondary seal is played near pipeline or the seal ring (8) between adapter outer side seal rubber ring (5) and two ring flat-plates.