CN203655226U - High pressure top drive inner blowout preventer - Google Patents
High pressure top drive inner blowout preventer Download PDFInfo
- Publication number
- CN203655226U CN203655226U CN201420003195.0U CN201420003195U CN203655226U CN 203655226 U CN203655226 U CN 203655226U CN 201420003195 U CN201420003195 U CN 201420003195U CN 203655226 U CN203655226 U CN 203655226U
- Authority
- CN
- China
- Prior art keywords
- valve base
- blowout preventer
- seat
- knob
- valve core
- 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 - Lifetime
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000004677 Nylon Substances 0.000 claims abstract description 4
- 229920001778 nylon Polymers 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 201000006417 multiple sclerosis Diseases 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Taps Or Cocks (AREA)
Abstract
Disclosed is a high pressure top drive inner blowout preventer. The blowout preventer relates to the field of valves. A valve core assembly comprises two turn buttons (2), an inner valve base (3), an outer valve base (4) and a ball valve core (5). The inner valve base (3) is fixed by a circular bead inside a body (1). An expanding spring (6) is disposed between and connects the body (1) and the circular bead. The outer valve base (4) is threadingly connected to the body (1). The outer side end of the outer valve base (4) is fixed by a clamp spring (7). A nylon pin (8) used for preventing the outer valve base (4) from loosening is disposed at the thread. The two turn buttons (2) are respectively connected to the two ends of the ball valve core (5). The turn buttons (2) are sleeved by copper sleeves (9) used for preventing friction. The turn buttons (2) and the copper sleeves (9) are sealed by sealing elements. The copper sleeves (9), the inner valve base (3), the outer valve base (4) and the body (1) are sealed by sealing elements. The blowout preventer is advantaged by being compact in structure, good in stability and good in sealing performance, bearing 155 MPa to the largest extent, being replaced in an individual manner or a complete set manner, and being repaired conveniently and efficiently.
Description
Technical field
The utility model relates to valve, is specifically related to a kind of high pressure inner blowout preventer that various top drive drillings use that is applicable to.
Background technology
High-pressure jack drives inner blowout preventer and also claims top to drive cock, in various Ding Qu mechanism, is widely used.The top using at present drive inner blowout preventer exist ball valve fragile, be not suitable for beating high pressure and the shortcoming such as application life is short.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of rational in infrastructure, life-span long and be applicable to top and order about the high pressure inner blowout preventer of use.
Technical solution of the present utility model is: it comprises body and core assembly, core assembly is by knob, interior valve seat, outer seat and spherical valve core form, described interior valve seat is fixed by intrinsic shoulder, and and shoulder between be provided with tensioner spring and be connected, described outer seat and body are threaded connection, its outboard end is fixed by jump ring, and screw thread place is provided with the nylon pin that prevents that outer seat is loosening, described knob is two, be connected to the two ends of described spherical valve core, on knob, all cover is useful on the copper sheathing that improves friction, between knob and copper sheathing and copper sheathing, between interior valve seat and outer seat and body, be equipped with seal sealing.
Technique effect of the present utility model is: it has core assembly compact conformation, good stability, good airproof performance, the highest pressure-bearing 155MPa, can be independent or complete replacing, the advantage such as quick easy to maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, it comprises body 1 and core assembly, core assembly is by knob 2, interior valve seat 3, outer seat 4 and spherical valve core 5 form, described interior valve seat 3 is fixed by the shoulder in body 1, and and shoulder between be provided with tensioner spring 6 and be connected, described outer seat 4 is threaded connection with body 1, its outboard end is fixing by jump ring 7, and screw thread place is provided with and prevents the loosening nylon pin of outer seat 48, described knob 2 is two, be connected to the two ends of described spherical valve core 5, on knob 2, all cover is useful on the copper sheathing 9 that improves friction, between knob 2 and copper sheathing 9 and copper sheathing 9, between interior valve seat 3 and outer seat 4 and body 1, be equipped with seal sealing.
Body 1 adopts alloy steel through special Technology for Heating Processing, adopts different materials according to user's pressure demand.Spherical valve core 5 adopts high-strength corrosion-resistant material, and multiple sclerosis mode is taked on surface, as electroplated, spray Cutanit, spraying Si Taili, ionic nitriding, QPQ technology etc., adopts different sclerosis modes according to user's pressure demand.Interior ball seat 3 and outer ball seat 4 adopt high-strength steel through special Technology for Heating Processing, and its Internal Spherical Surface is the same with the surface of spherical valve core 5, adopts different sclerosis modes according to user's pressure demand.Spherical valve core 5 after processing carries out grinding with interior ball seat 3 and outer ball seat 4 on high accuracy grinder, grinds rear roughness and reaches 0.1, and circularity is no more than 0.01mm.
Its sealing principle is by valve seat in spring-loaded 3, spherical valve core 5 to be located; and make it certain pretension; spherical valve core 5 and interior valve seat 3, outer seat 4 seal close contacts; when open, hydrophthalmia is unimpeded, while closing; sphere all seals hydrophthalmia; interior annular space partial pressure acts on globe valve core body, makes spherical valve core and interior valve seat 3, outer seat 4 in high pressure sealing state, realizes safeguard protection effect.Realize high pressure sealing by spherical valve core 5 from the different hardened materials of the sealing sphere of interior valve seat 3, outer seat 4.
Claims (1)
1. high-pressure jack drives inner blowout preventer, comprise body (1) and core assembly, core assembly is by knob (2), interior valve seat (3), outer seat (4) and spherical valve core (5) form, it is characterized in that, described interior valve seat (3) is fixed by the shoulder in body (1), and and shoulder between be provided with tensioner spring (6) and be connected, described outer seat (4) is threaded connection with body (1), its outboard end is fixing by jump ring (7), and screw thread place is provided with the nylon pin (8) that prevents that outer seat (4) is loosening, described knob (2) is two, be connected to the two ends of described spherical valve core (5), on knob (2), all cover is useful on the copper sheathing (9) that improves friction, between knob (2) and copper sheathing (9) and copper sheathing (9), between interior valve seat (3) and outer seat (4) and body (1), be equipped with seal sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003195.0U CN203655226U (en) | 2014-01-04 | 2014-01-04 | High pressure top drive inner blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003195.0U CN203655226U (en) | 2014-01-04 | 2014-01-04 | High pressure top drive inner blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655226U true CN203655226U (en) | 2014-06-18 |
Family
ID=50921626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003195.0U Expired - Lifetime CN203655226U (en) | 2014-01-04 | 2014-01-04 | High pressure top drive inner blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178903A (en) * | 2015-10-21 | 2015-12-23 | 大连瑞亨机械制造有限公司 | Novel high-strength blowout preventer in top driving device |
-
2014
- 2014-01-04 CN CN201420003195.0U patent/CN203655226U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178903A (en) * | 2015-10-21 | 2015-12-23 | 大连瑞亨机械制造有限公司 | Novel high-strength blowout preventer in top driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |