CN104565661B

CN104565661B - Sealing pipe plug

Info

Publication number: CN104565661B
Application number: CN201310528612.3A
Authority: CN
Inventors: 赵登东
Original assignee: Harbin Electric Group Qinhuangdao Heavy Equipment Co Ltd
Current assignee: Harbin Electric Group Qinhuangdao Heavy Equipment Co Ltd
Priority date: 2013-10-25
Filing date: 2013-10-25
Publication date: 2017-02-01
Anticipated expiration: 2033-10-25
Also published as: CN104565661A

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 seals pipe close and is mainly used in the not high gas of pressure or liquid medium pipeline and the closure of container adapter And sealing.For example: pressure vessel, during packed and transported, needs to be filled with nitrogen or noble gases in container, plays protection The effect of pressure vessel, container pipe joint needs to block and seal, and using this device, simple and fast, does not damage mother metal.

2. background technology:

The closure of the pipeline of gas or liquid medium and container adapter and sealing, main employing welds closure plate, air bag and glue Plug etc..Welding closure plate, for interim closure and sealing, one side inconvenient operation, on the other hand damages to mother metal, particularly For some special materials.Air sac sealing, air bag inherently pressure parts, easily breakage causes the injury of personnel.Plug is close Envelope, for small takeover sealing effectiveness preferably, but the sealing for big adapter, need bigger pretightning force, bear less closure Back pressure.

3. content of the invention:

Invention device is sealing pipe close, can apply to pipeline and the adapter of various metals and nonmetallic materials, using model Enclose wide.This device is simple and quick, using multiple-sealed, good sealing effect, is particularly well-suited to interim closure and close Envelope, safety is higher.This sealing pipe close is reusable, need only change sealing rubber ring, so can substantially reduce makes Use cost.

4. brief description:

Fig. 1 is sealing pipe close (≤dn100 adapter or pipeline) total figure；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 part drawing in Fig. 1；Fig. 5 is part 2 support ring part drawing in Fig. 1；Fig. 6 is in part 3 in Fig. 1 Between ring flat-plate part drawing；Fig. 7 is part 4 outer ring plate part drawing in Fig. 1；Fig. 8 is part 5 sealing rubber ring part drawing in Fig. 1；Fig. 9 is Fig. 1 The title bar of sealing pipe close (≤dn100 adapter or pipeline) total figure and item block.Fig. 1 sealing pipe close (≤dn100 adapter or pipe Road) by inner ring plate (1), support ring (2), middle ring flat-plate (3), outer ring plate (4), sealing rubber ring (5), fastening bolt (6) and spiral shell Female (7) composition, fastening bolt (6) end adopts square head structure, the other end and internal ring plate weld, when clamp nut (7) with pulling Handss clamp square toes, prevent nut from driving bolt and sealing device unitary rotation in rotation process.Element size in Fig. 1, Material and parts quantity is only reference, and practical situation need to be according to the operating condition of the size of pipeline or adapter and material and equipment Determine with medium species.

Figure 10 is sealing pipe close (＞ dn100 adapter or pipeline) total figure；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 Figure 10 sealing pipe close (＞ dn100 adapter or pipeline) The title bar of total figure and item block；Figure 15 is part 1 inner ring plate part drawing in Figure 10；Figure 16 is supporting shaped part in part 2 in Figure 10 Figure；Figure 17 is Figure 16 " a-a " sectional view；Figure 18 is the middle ring flat-plate part drawing of part 3 in Figure 10；Figure 19 is that Figure 18 " b-b " cuts open View；Figure 20 is part 4 outer ring plate part drawing in Figure 10；Figure 21 is Figure 20 " c-c " sectional view；Figure 22 is that in Figure 10, part 5 seals Rubber ring part drawing；Figure 23 is part 8 sealing ring part drawing in Figure 10；Figure 24 is part 9 external support shaped part figure in Figure 10；Figure 25 is " d-d " sectional view of Figure 24.Figure 10 sealing pipe close (＞ dn100 adapter or pipeline) is by inner ring plate (1), interior support ring (2), centre Ring flat-plate (3) outer ring plate (4), sealing rubber ring (5), fastening bolt (6), nut (7), sealing ring (8) and external support ring (9) group Become, fastening bolt (6) end adopts square head structure, the other end and internal ring plate weld, uses spanner clamping side when clamp nut (7) Head, prevents nut from driving bolt and sealing device unitary rotation in rotation process.Element size in Figure 10, material and zero Number of packages amount is only reference, and practical situation need to be according to the operating condition of the size of pipeline or adapter and material and equipment and medium kind Class determines.

5. specific embodiment

The sealing that Fig. 1 seals pipe close (≤dn100 adapter or pipeline) is mainly produced to inner ring plate by pretension bolt (1), the thrust of middle ring flat-plate (3) and outer ring plate (4), makes two ring flat-plates crush seal rubber ring (5), and support ring (2) is prevented simultaneously Only sealing rubber ring (5) expands inwards, promotes sealing rubber ring (5) outward expansion, reaches sealing adapter or pipeline and sealing rubber Leakage channel between cushion rubber.Sealing rubber ring (5) under two ring flat-plate squeezing actions, reach sealing ring flat-plate and sealing rubber ring it Between leakage channel.

The sealing that Figure 10 seals pipe close (＞ dn100 adapter or pipeline) is mainly produced to inner ring plate by pretension bolt (1), the thrust of middle ring flat-plate (3) and outer ring plate (4), makes two ring flat-plates crush seal rubber ring (5), simultaneously interior support ring (2) Prevent sealing rubber ring (5) from expanding inwards with external support ring (9), promote sealing rubber ring (5) outward expansion, reach sealing adapter Or leakage channel between pipeline and sealing rubber ring.Sealing rubber ring (5) under two ring flat-plate squeezing actions, reach sealing ring flat-plate with Leakage channel between sealing rubber ring.Near the sealing ring (8) between pipeline or adapter outer side seal rubber ring (5) and two ring flat-plates Play the effect of secondary seal, strengthen sealing further and ensure.

The medium maximum working pressure that sealing pipe close can bear can be determined by rough estimation and experiment.Calculating side Method mainly calculates the thrust to sealing rubber ring for two ring flat-plates by the pretightning force of bolt, it is then determined that sealing rubber ring Deflection, then pressure pipeline or adapter being produced by Deformation calculation sealing rubber ring, pressure be multiplied by rubber and adapter or The coefficient of friction of pipeline, thus calculates the medium back pressure power that sealing pipe close can bear.

Claims

1. it is used for the sealing pipe close of pipeline, by inner ring plate (1), interior support ring (2), middle ring flat-plate (3), outer ring plate (4), sealing rubber Cushion rubber (5), fastening bolt (6), nut (7), sealing ring (8) and external support ring (9) composition, is characterized in that, by pretension bolt Produce the thrust to inner ring plate (1), middle ring flat-plate (3) and outer ring plate (4), make two ring flat-plates crush seal rubber ring (5), simultaneously Interior support ring (2) and external support ring (9) prevent sealing rubber ring (5) from expanding inwards, promote sealing rubber ring (5) outward expansion, Thus playing sealing function, play secondary seal near the sealing ring (8) between pipeline outer side seal rubber ring (5) and two ring flat-plates Effect, described pipeline be more than dn100 pipeline.

2. sealing pipe close according to claim 1, is characterized in that, described pipeline is metal or nonmetallic pipeline.

3. sealing pipe close according to claim 1, is characterized in that, described sealing pipe close passes through replacing sealing rubber ring (5) and can weigh Multiple use.

4. sealing pipe close according to claim 1, is characterized in that, fastening bolt (6) end adopts square head structure, the other end with interior Ring flat-plate (1) welds.

5. sealing pipe close according to claim 4, is characterized in that, uses spanner clamping square toes when clamp nut (7), prevents nut (7) fastening bolt (6) and sealing device unitary rotation are driven in rotation process.