CN205859375U - LNG immersed pump power line seal nipple - Google Patents
LNG immersed pump power line seal nipple Download PDFInfo
- Publication number
- CN205859375U CN205859375U CN201620829664.3U CN201620829664U CN205859375U CN 205859375 U CN205859375 U CN 205859375U CN 201620829664 U CN201620829664 U CN 201620829664U CN 205859375 U CN205859375 U CN 205859375U
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- hole
- elastic packing
- gland
- outer end
- packing plug
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Abstract
A kind of LNG immersed pump power line seal nipple, including fittings body, gland, end cap；Described fittings body is axially arranged sealing hole, and described sealing hole is provided with the sealed step of frustum；Being provided with elastic packing plug in described sealing hole, described elastic packing plug the inner is frustum, rests in sealed step；Described elastic packing plug at least one cable fixing hole axially arranged；Described gland is slidably mounted in sealing hole, and inner and elastic packing end in contact beyond the Great Wall, fittings body is stretched out in outer end；Described end cap is arranged on fittings body outer end, and inner face contacts with the outer end of gland, and described end cap is axially provided with connecting hole.The LNG immersed pump power line seal nipple gland by end cap pushing and withstanding, pushes elastic packing plug so that it is hold cable tightly and seal, and the stress of elastic packing plug is more direct, and sealing effectiveness is more preferable, seals persistence higher.
Description
Technical field
This utility model relates to petroleum gas technical field, specifically, is that a kind of LNG immersed pump power line sealing connects
Head.
Background technology
In LNG pump pond, the power line of low temperature immersed pump must be drawn from pump pond and is connected with external power source, and power line exists
Need to ensure that the natural gas in pump pond does not leaks while pump pond.For ensureing power line safety at low ambient temperatures,
Power line uses many single-core lines to draw, and has a certain distance between the most each single-core line.And current seal nipple is main
Single cable is sealed, it is impossible to need spaced apart cable to seal to many, and be and directly push wedge shape knot
Structure seals, and sealing effectiveness and stability are more weak.
Utility model content
The deficiency that this utility model exists for above-mentioned prior art, it is proposed that a kind of more preferable LNG of sealing effectiveness dives liquid
Pumping source linear sealing joint.
LNG immersed pump power line seal nipple of the present utility model, including fittings body, gland, end cap；Described fittings body axle
To being provided with sealing hole, described sealing hole is provided with the sealed step of frustum；In described sealing hole, elastic packing plug is installed,
Described elastic packing plug the inner is frustum, rests in sealed step；Described elastic packing plug at least one line axially arranged
Cable fixing hole；Described gland is slidably mounted in sealing hole, and inner and elastic packing end in contact beyond the Great Wall, fittings body is stretched out in outer end；
Described end cap is arranged on fittings body outer end, and inner face contacts with the outer end of gland, and described end cap is axially provided with connecting hole.
Preferably, farther including support set, described support set includes medial branch support set and lateral branch support set；In described
Collateral support set is positioned in sealing hole, outer end and end in contact in elastic packing plug, and the inner rests on and seals the support that hole inwall is arranged
On step；Described lateral branch support set is positioned in gland, and inner and elastic packing end in contact beyond the Great Wall, outer end rests on gland inwall and sets
On the fixing step put；Described support set is axially arranged has cable to pass through hole, and described cable is alignd with cable fixing hole by hole.
Preferably, described gland outer wall passes through bonded with sealing hole inwall.
Preferably, described connecting hole outer end and sealing the inner, hole are fitted with cable jacket.
Preferably, described end cap is threaded connection with fittings body.
The beneficial effects of the utility model are: the LNG immersed pump power line seal nipple gland by end cap pushing and withstanding, push
Elastic packing plug so that it is hold cable tightly and seal, the stress of elastic packing plug is more direct, and sealing effectiveness is more preferable, and sealing is held
Continuous property is higher.
Elastic packing plug is pushed by support set again, increases accepting of cable further, improves sealing effectiveness, and
Being alignd with elastic packing fixing hole beyond the Great Wall by hole on support set so that it is can respectively each fixing hole be pushed,
Ensure that the position of each fixing hole can be pushed, produce enough enclasping forces, it is ensured that the sealing of multiple cables at interval
Effect, makes seal nipple disclosure satisfy that power line safety at low ambient temperatures.
Gland outer rim is alignd with elastic packing plug, enables gland to push elastic packing plug from outside, makes elastic packing plug
Stress is more abundant, improves the enclasping force that elastic packing plug produces, it is ensured that sealing effectiveness.
Gland passes through bonded with sealing hole, when making gland slide axially, prevents gland from rotating, it is to avoid gland abrasion elasticity
Sealing-plug.
Each cable, at structure two ends, is supported by the cable jacket installed, and makes to keep interval to arrange between cable, carries
High security.
End cap is threaded connection with fittings body, makes end cap need not use bigger power, it becomes possible to smooth and close
Install, it is ensured that it can effectively push gland, and can accurately regulate end cap and push the degree of gland, also make it install more
Convenient.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of LNG immersed pump power line seal nipple；
Accompanying drawing 2 is the structural representation of elastic packing plug.
Detailed description of the invention
In order to be able to further appreciate that structure of the present utility model, feature and other purpose, in conjunction with appended preferred embodiment
Describing in detail as follows, illustrated preferred embodiment is merely to illustrate the technical solution of the utility model, and non-limiting practicality
Novel.
Detailed description of the invention of the present utility model is as follows:
As it is shown in figure 1, LNG immersed pump power line seal nipple includes fittings body 1, gland 2, end cap 3.
Fittings body 1 is axially arranged sealing hole 4, seals hole 4 and is provided with the sealed step of frustum.
Being provided with elastic packing plug 5 in sealing hole 4, described elastic packing plug 5 the inner is frustum, rests on sealed step
On,
Elastic packing plug 5 at least one cable fixing hole axially arranged.
Gland 2 is slidably mounted in sealing hole 4, and the inner contacts with elastic packing plug 5 outer end, and fittings body 1 is stretched out in outer end.
End cap 3 is arranged on fittings body 1 outer end, and inner face contacts with the outer end of gland 2, and end cap 3 is axially arranged connection
Hole 6.
During use, cable 11 ecto-entad, the connecting hole 6 through end cap 3 enters in gland 2, bullet in entering sealing hole 4
Property sealing-plug 5 cable fixing hole, be then departed from fittings body 1, enter in the connecting tube 12 that pump pond 13 is arranged, finally connect pump pond
Immersed pump in 13.
Fittings body 1 the inner and connecting tube 12 by being connected, the mechanical connection manner such as both are threaded connection, interference fit
Assembling.
Elastic packing plug 5 is made for graphite packing, in order to ensure that cable 11 exists rational safety clearance, bullet each other
On property sealing-plug 5, multiple cable fixing hole is set, it is ensured that single cable 11 can independently pass cable fixing hole, guarantees line simultaneously
The quantity of cable is identical with the quantity of cable fixing hole.
Elastic packing plug 5 the inner is frustum, has tapering, it is possible to the sealed step that fittings body 1 seals hole 4 frustum
Match in surface, axially pushed gland 2 by end cap 3, makes gland 2 push elastic packing plug 5, produces radial force.In radial force
Effect under, the cable 11 in cable fixing hole is compressed, complete seal.
In order to improve sealing effectiveness further, LNG immersed pump power line seal nipple farther includes support set.Support set
Including medial branch support set 7 and lateral branch support set 8.
Medial branch support set 7 is positioned in sealing hole 4, outer end and end in contact in elastic packing plug 5, and the inner rests on sealing hole 4
On the support level that inwall is arranged.
Lateral branch support set 8 is positioned in gland 2, and the inner contacts with elastic packing plug 5 outer end, and outer end rests on gland 2 inwall
On the fixing step arranged.
Support set is that PTFE filler is made, and support set is axially arranged has cable to pass through hole, and cable is fixed with cable by hole
Align in hole.
Being positioned at the cable 11 of elastic packing plug 5 both sides, the cable being positioned at support set passes through in hole, the cable quantity by hole
Identical with the quantity of cable fixing hole.
Elastic packing plug 5 is pushed while medial movement receiving gland 2, and gland 2 promotes lateral branch support set 8 to push bullet
Property sealing-plug 5, seal the support level of hole 4 inwall and then make medial branch support set 7 pushing and withstanding from inside to outside elastic by counteracting force
Sealing-plug 5, in elastic packing plug 5, the pushing force in outside increases, and the radial force of generation increases, and improves the compression journey of cable 11
Degree, improves sealing effectiveness.
In order to make elastic packing plug 5 stress more direct, the external diameter of gland 2 is identical with the external diameter of elastic packing plug 5 outer end.
Gland 2 pushes elastic packing plug 5 from outside, makes elastic packing plug 5 can produce more radial force, improves sealing effectiveness.
In order to prevent gland 2 from rotating, gland 2 outer wall is connected by key 9 with sealing hole 4 inwall.Limit by connecting key 9
System, gland 2 can only move axially, and prevents it from rotating and the elastic packing plug 5 that weares and teares, it is ensured that the life-span of structure.
In order to be further ensured that cable location is fitted with parallel through in joint, connecting hole 6 outer end and sealing the inner, hole 4
Cable jacket 10, from inner and outer end by cable support, cable jacket 10 arrange with cable by hole, cable fixing hole quantity,
The hole that position is identical.
In order to improve assembling and the convenience of regulation, end cap 2 is threaded connection with fittings body 1, and end cap 2 is the least,
Gland 2 can be made closely to push elastic packing plug 5, and the position pushed can be finely adjusted.
Claims (6)
1. a LNG immersed pump power line seal nipple, it is characterised in that include fittings body (1), gland (2), end cap (3),
Described fittings body (1) is axially arranged sealing hole (4), and described sealing hole (4) is provided with the sealed step of frustum,
Being provided with elastic packing plug (5) in described sealing hole (4), described elastic packing plug (5) the inner is frustum, rests on close
On envelope step,
Described elastic packing plug (5) at least one cable fixing hole axially arranged,
Described gland (2) is slidably mounted in sealing hole (4), and the inner contacts with elastic packing plug (5) outer end, and joint is stretched out in outer end
Body (1),
Described end cap (3) is arranged on fittings body (1) outer end, and inner face contacts with the outer end of gland (2), described end cap (3) axle
To being provided with connecting hole (6).
LNG immersed pump power line seal nipple the most according to claim 1, it is characterised in that farther include support set,
Described support set includes medial branch support set (7) and lateral branch support set (8),
Described medial branch support set (7) is positioned in sealing hole (4), and outer end and elastic packing plug (5) interior end in contact, the inner rests on close
On the support level that sealing of hole (4) inwall is arranged,
Described lateral branch support set (8) is positioned in gland (2), and the inner contacts with elastic packing plug (5) outer end, and outer end rests on gland
(2) on the fixing step that inwall is arranged,
Described support set is axially arranged has cable to pass through hole, and described cable is alignd with cable fixing hole by hole.
LNG immersed pump power line seal nipple the most according to claim 1, it is characterised in that the external diameter of described gland (2)
Identical with the external diameter of elastic packing plug (5) outer end.
LNG immersed pump power line seal nipple the most according to claim 1, it is characterised in that described gland (2) outer wall with
Seal hole (4) inwall to be connected by key (9).
LNG immersed pump power line seal nipple the most according to claim 1, it is characterised in that described connecting hole (6) outer end
It is fitted with cable jacket (10) with sealing in hole (4) the inner.
LNG immersed pump power line seal nipple the most according to claim 1, it is characterised in that described end cap (3) and joint
Body (1) is threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829664.3U CN205859375U (en) | 2016-07-31 | 2016-07-31 | LNG immersed pump power line seal nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620829664.3U CN205859375U (en) | 2016-07-31 | 2016-07-31 | LNG immersed pump power line seal nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859375U true CN205859375U (en) | 2017-01-04 |
Family
ID=57654540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620829664.3U Active CN205859375U (en) | 2016-07-31 | 2016-07-31 | LNG immersed pump power line seal nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859375U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953774A (en) * | 2018-08-23 | 2018-12-07 | 深圳核心医疗科技有限公司 | Sealing structure and ventricular-assist |
| CN117629429A (en) * | 2023-11-30 | 2024-03-01 | 北京锦驰泰达科技有限公司 | Intelligent temperature measuring terminal for power distribution |
-
2016
- 2016-07-31 CN CN201620829664.3U patent/CN205859375U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953774A (en) * | 2018-08-23 | 2018-12-07 | 深圳核心医疗科技有限公司 | Sealing structure and ventricular-assist |
| CN108953774B (en) * | 2018-08-23 | 2023-12-15 | 深圳核心医疗科技股份有限公司 | Sealing structure and ventricular assist device |
| CN117629429A (en) * | 2023-11-30 | 2024-03-01 | 北京锦驰泰达科技有限公司 | Intelligent temperature measuring terminal for power distribution |
| CN117629429B (en) * | 2023-11-30 | 2024-05-03 | 北京锦驰泰达科技有限公司 | Intelligent temperature measuring terminal for power distribution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |