CN201092838Y - Cuneiform contractile ring well mouth sealing device - Google Patents
Cuneiform contractile ring well mouth sealing device Download PDFInfo
- Publication number
- CN201092838Y CN201092838Y CNU2007200137620U CN200720013762U CN201092838Y CN 201092838 Y CN201092838 Y CN 201092838Y CN U2007200137620 U CNU2007200137620 U CN U2007200137620U CN 200720013762 U CN200720013762 U CN 200720013762U CN 201092838 Y CN201092838 Y CN 201092838Y
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- CN
- China
- Prior art keywords
- sealing
- plug
- wedge
- packing
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 238000012856 packing Methods 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to a device for sealing well head with wedged contractile ring, which belongs to sealing devices, the device has the structures that an upper end of an oil tube joint is connected with an outer cylinder, the upper end of the outer cylinder is connected with a hold-down lock tube, and the upper end of the hold-down lock tube is connected with a hold-down cap nut, an anti-partial wear protecting screwed plug is mounted on an intra-shoulder plane of the oil tube joint, a sealing plug is mounted on an upper plane of the anti-partial wear protecting screwed plug, a sealing cylinder is mounted on an upper-plane of the sealing plug, a wedged sealing packing is embedded in the sealing cylinder, a spring holder is mounted on the wedged sealing packing, springs are mounted on the spring holder, and an upper partial wear protecting casing is mounted on the spring holder. The device for sealing well head with wedged contractile ring has the advantages of good sealing effect, energy saving and consumption reducing, prolonged service life of the packing and off-line maintenance period, and improved efficiency of mechanical equipment.
Description
Technical field
The utility model belongs to sealing device, particularly relates to a kind of wedge shape contractile ring well mouth sealing device.
Background technology
The mechanical dynamic seal device of prior art adopts packing compression type sealing mostly, promptly doses packing in pipe spreader, uses pressure ring, pressure cap fastening again, reaches the purpose of movable sealing.But the sealing effectiveness of this encapsulating method and device is not good.Seal because of it only depends on pressure cap vertically to compress packing, and the adjustable extent of pressure cap is extremely limited, causes that frictional resistance is big, seepage often takes place sealing surface, packing damages, packing application life is short, maintenance is frequent, equipment running cost height, influenced ordinary production
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, and a kind of wedge shape contractile ring well mouth sealing device of simple in structure, good sealing effect is provided
Wedge shape contractile ring well mouth sealing device of the present utility model by oil connection, the protection of anti-eccentric wear plug, sealing-plug, sealed cylinder, urceolus, wedge-type seal packing, spring base, spring, compress lock tube, go up the eccentric wear protective sleeve and clamping nut constitutes.Wherein, the upper end of oil connection is connected with urceolus, the upper end of urceolus with compress lock tube and be connected, the upper end that compresses lock tube connects clamping nut.Anti-eccentric wear protection plug is arranged at the inner shoulder table seat of honour of oil connection; the plane seat has sealing-plug on anti-eccentric wear protection plug; sealing-plug on the plane seat sealed cylinder is arranged; be embedded with the wedge-type seal packing at sealed cylinder; on the wedge-type seal packing, spring base is arranged; spring base is provided with spring, and there is last eccentric wear protective sleeve at the spring seat of honour.
As further improvement of the utility model, the inner ring surface of sealed cylinder is a taper type, and the outer ring surface of embedded wedge-type seal packing is the taper type tangent with the inner ring surface of sealed cylinder.
As further improvement of the utility model, described wedge-type seal packing is to be built mutually to add by the taper type packing ring more than a slice to constitute, and the ring body of each packing is opening overlaid overlap joint formation.
As further improvement of the utility model, all cylinders of the ring of sealing-plug and the equal setting-in O of last planar annular V-shaped ring.
Wedge shape contractile ring well mouth sealing device of the present utility model has not only kept the common sealing means that compresses packing with pressure cap, but also can regulate clamping nut by forward, make it to increase to the inside extrusion and displacement of wedge platform, entad shrink and make whole sealing drum produce equilibrium, the wedge-type seal packing is produced entad compressing of side equilibrium again, thereby improve sealing effectiveness.Not only reduced the frictional resistance of sealing, guaranteed that sealing device is non-leakage, but also have energy-saving and cost-reducing, as to have prolonged packing application life and process units the stop production to overhaul cycle, improve advantage such as moving device efficiency.
Description of drawings
Fig. 1 is the structural representation of wedge shape contractile ring well mouth sealing device of the present utility model.
Fig. 2 is the structural representation of wedge shape contractile ring well mouth sealing device packing ring of the present utility model.
The specific embodiment
Wedge shape contractile ring well mouth sealing device of the present utility model by oil connection 1, the protection of anti-eccentric wear plug 2, sealing-plug 3, sealed cylinder 4, urceolus 5, wedge-type seal packing 6, spring base 7, spring 8, compress lock tube 9, go up eccentric wear protective sleeve 10 and clamping nut 11 constitutes; the upper end that it is characterized in that oil connection 1 is connected with urceolus 5; the upper end of urceolus 5 with compress lock tube 9 and be connected, the upper end that compresses lock tube 9 connects clamping nut 11.At the inner shoulder table seat of honour of oil connection 1 anti-eccentric wear protection plug 2 is arranged, the plane seat has sealing-plug 3 on anti-eccentric wear protection plug 2, at all cylinders of the ring of sealing-plug 3 and the equal setting-in O of last planar annular V-shaped ring.Sealing-plug 3 on the plane seat inner ring surface is arranged is the sealed cylinder 4 of taper type, the outer ring surface that is embedded with wedge-type seal packing 6 at sealed cylinder 4 is the taper type tangent with the inner ring surface of sealed cylinder 4.Wedge-type seal packing 6 is to be built to add mutually by the taper type packing ring 12 more than a slice to constitute, and the ring body of each packing is opening overlaid overlap joint formation.Spring base 7 is arranged on wedge-type seal packing 6, and spring base 7 is provided with spring 8, and there is last eccentric wear protective sleeve 10 at spring 8 seats of honour.
Claims (4)
1. wedge shape contractile ring well mouth sealing device is protected plug (2), sealing-plug (3), sealed cylinder (4), urceolus (5), wedge-type seal packing (6), spring base (7), spring (8), compresses lock tube (9), is gone up eccentric wear protective sleeve (10) and clamping nut (11) formation by oil connection (1), anti-eccentric wear, the upper end that it is characterized in that oil connection (1) is connected with urceolus (5), the upper end of urceolus (5) with compress lock tube (9) and be connected, the upper end that compresses lock tube (9) connects clamping nut (11); Anti-eccentric wear protection plug (2) is arranged at the inner shoulder table seat of honour of oil connection (1); last plane seat at anti-eccentric wear protection plug (2) has sealing-plug (3); last plane seat in (3) of sealing-plug has sealed cylinder (4); be embedded with wedge-type seal packing (6) at sealed cylinder (4); spring base (7) is arranged on wedge-type seal packing (6); spring base (7) is provided with spring (8), and there is last eccentric wear protective sleeve (10) at spring (8) seat of honour.
2. wedge shape contractile ring well mouth sealing device as claimed in claim 1, the inner ring surface that it is characterized in that sealed cylinder (4) is a taper type, the outer ring surface of embedded wedge-type seal packing (6) is the tangent taper type of inner ring surface with sealed cylinder (4).
3. wedge shape contractile ring well mouth sealing device as claimed in claim 1 or 2 is characterized in that wedge-type seal packing (6) is to be built mutually by the taper type packing ring (12) more than a slice to add formation, and the ring body of each packing is opening overlaid overlap joint formation.
4. wedge shape contractile ring well mouth sealing device as claimed in claim 1 or 2 is characterized in that ring week cylinder and the equal setting-in O of last planar annular V-shaped ring of sealing-plug (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200137620U CN201092838Y (en) | 2007-08-10 | 2007-08-10 | Cuneiform contractile ring well mouth sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200137620U CN201092838Y (en) | 2007-08-10 | 2007-08-10 | Cuneiform contractile ring well mouth sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092838Y true CN201092838Y (en) | 2008-07-30 |
Family
ID=39900803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200137620U Expired - Fee Related CN201092838Y (en) | 2007-08-10 | 2007-08-10 | Cuneiform contractile ring well mouth sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092838Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536148A (en) * | 2010-10-08 | 2012-07-04 | 韦特柯格雷公司 | Seal with enhanced nose ring |
| CN103109037A (en) * | 2010-08-17 | 2013-05-15 | 贝克休斯公司 | Retractable downhole backup assembly for circumferential seal support |
| CN104563942A (en) * | 2014-12-29 | 2015-04-29 | 新乡市乔山机械设备有限公司 | Anti-leakage wellhead sealing device |
| CN106571613A (en) * | 2016-11-15 | 2017-04-19 | 江苏泰普特电气仪表有限公司 | Novel explosion-proof armor stuffing box |
-
2007
- 2007-08-10 CN CNU2007200137620U patent/CN201092838Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109037A (en) * | 2010-08-17 | 2013-05-15 | 贝克休斯公司 | Retractable downhole backup assembly for circumferential seal support |
| CN102536148A (en) * | 2010-10-08 | 2012-07-04 | 韦特柯格雷公司 | Seal with enhanced nose ring |
| CN102536148B (en) * | 2010-10-08 | 2016-04-13 | 韦特柯格雷公司 | There is the seal of enhanced nose circle |
| CN104563942A (en) * | 2014-12-29 | 2015-04-29 | 新乡市乔山机械设备有限公司 | Anti-leakage wellhead sealing device |
| CN106571613A (en) * | 2016-11-15 | 2017-04-19 | 江苏泰普特电气仪表有限公司 | Novel explosion-proof armor stuffing box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20090910 |