CN104847297A - Flashboard locking state display device of blowout preventer - Google Patents
Flashboard locking state display device of blowout preventer Download PDFInfo
- Publication number
- CN104847297A CN104847297A CN201510215184.8A CN201510215184A CN104847297A CN 104847297 A CN104847297 A CN 104847297A CN 201510215184 A CN201510215184 A CN 201510215184A CN 104847297 A CN104847297 A CN 104847297A
- Authority
- CN
- China
- Prior art keywords
- display
- display unit
- locking state
- preventer
- flashboard
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 36
- 239000000696 magnetic material Substances 0.000 claims abstract description 9
- 229910000677 High-carbon steel Inorganic materials 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910000828 alnico Inorganic materials 0.000 claims abstract description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- 229910000521 B alloy Inorganic materials 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000011554 ferrofluid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 4
- 239000002907 paramagnetic material Substances 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 230000005298 paramagnetic effect Effects 0.000 abstract 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 abstract 1
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
Disclosed is a flashboard locking state display device of a blowout preventer. The flashboard locking state display device of the blowout preventer comprises a locking shaft, a cylinder cover and a display device, wherein the display device is fixed on the cylinder cover. The flashboard locking state display device of the blowout preventer is characterized in that the display device comprises a display end cover, an observation window and a display object, the display end cover is provided with an inner cavity, the display object is arranged in the inner cavity, the display end cover and the observation window are combined in sealed mode and fixed together, and seal the display object in the inner cavity, the display object can be moved to an optional position in the inner cavity under action of external force, the locking shaft is made of hard magnetic material or the hard magnetic materials is embedded in an end of the locking shaft, adjacent to the display device, the hard magnetic material contains high carbon steel, neodymium iron boron alloy and alnico alloy, the display end cover is made of paramagnetic or antimagnetic material, the paramagnetic or antimagnetic material is copper or austenitic stainless steel, and the inner cavity of the display end cover is in basin or cone or ring shape. The flashboard locking state display device of the blowout preventer is simple in structure, small in size, easy to maintain, capable of displaying in night, and low in fault rate.
Description
Technical field
The present invention relates to a kind of in the creeping into of soil layer or rock for sealing or the device of packing well or well, establish the flashboard locking state display unit relating to a kind of preventer especially.
Background technology
The effect of the flashboard locking device of preventer is after preventer closing well, and locking ram block, outwards moves under the pressure preventing flashboard to fluctuate in well, ensures stability and the reliability of preventer shut-in well.Locking device is divided into manual locking and locking of surging, and flashboard locking state display unit is mainly used in and surges in locking device, its major function is that the effect whether switch motion of flashboard and lock shaft play locking or unlock is determined in motion by observing lock shaft.
Be disclose a kind of locking fluid cylinder head side that is used in the patent document " a kind of oil, the gas drilling hydraulic automatic locking device of ram preventer " of ZL200620046827 the display unit that radial display and the position of axial display to lock shaft represent is installed in the patent No..In the paper " improvement of ram preventer hydraulic automatic locking device " of " oil field equipment " o. 11th 51st ~ 53 pages published for 2011, author also improves indication mechanism.
Up to the present, the position of the lock shaft in hydraulic locking apparatus is normally showed by the mechanical display devices outside locking fluid cylinder, its weak point be the built-in spring force of indication mechanism not or mud thing etc. hinder display pole motion, or exposed part likely can not normally be shown by collision deformation, display unit must contact lock shaft and produce athleticism and realize display, required parts are more, complex structure, and processing and inconvenient maintenance, fault rate is high and cannot show at night.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming overcoming prior art, provide that a kind of structure is simple, compact, easy-maintaining, can show at night, the flashboard locking state display unit of the preventer of failure rate is low.
The object of the invention is to be achieved by the following technical programs:
A flashboard locking state display unit for preventer, comprise lock shaft, cylinder cap, display unit, display unit is fixed on cylinder cap, and its feature is:
Described display unit comprises display end cap, observation port, display object, described display end is stamped inner chamber, display object is had in described inner chamber, described display end cap and observation port sealing are fixed together, display object is closed in the lumen, described display object is movable to optional position in inner chamber under external force, and described lock shaft material therefor is that hard magnetic material or lock shaft and display unit adjacent end portion are embedded in hard magnetic material.
Preferably, the retentive material that described lock shaft retentive material used or lock shaft and display unit adjacent end portion are embedded in is high-carbon steel, Nd Fe B alloys, alnico alloy or ferrite.
Preferably, described display end cap is paramagnetic material or antimagnetic material.
Preferably, the material of described display end cap is copper or austenitic stainless steel, and its cavity shape is basin shape or taper or annular.
Preferably, described observation port material therefor is transparent material, and there is anti-pollution layer on its surface.
Preferably, the material of described observation port is tempered glass, and its marginal portion scribbles can at the fluorescent material of display at night.
Preferably, described display object material therefor is hard magnetic material or soft magnetic materials.
Preferably, described display object material therefor is high-carbon steel.
Preferably, the state of described display object is globular solids or pulverulent solids, and its surface scribbles can at the fluorescent material of display at night.
Preferably, the state of described display object is fluid, its material ferrofluid, containing the fluorescent material that can show at night in it.
Compared with prior art, the present invention has following beneficial effect: do not need the frame for movements such as spring, there is no exposed part, it is a kind of contactless display unit, structure is simple, and required parts are less, and processing cost and fault rate are reduced, reliability, maintenance convenience improve, and make also can show at night.
Accompanying drawing explanation
In conjunction with the accompanying drawings and embodiments more specific description is carried out to the present invention and can understand above-mentioned characteristic sum beneficial effect of the present invention in detail; but it is to be noted; accompanying drawing is only preferred embodiment; therefore should not be regarded as and limit its protection domain; Reference numeral identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 is the released state structural representation of the embodiment one of the flashboard locking state display unit of preventer of the present invention.
Fig. 2 is the locking state structural representation of the embodiment one of the flashboard locking state display unit of preventer of the present invention.
Fig. 3 is the released state structural representation of the embodiment two of the flashboard locking state display unit of preventer of the present invention.
Fig. 4 is the locking state structural representation of the embodiment two of the flashboard locking state display unit of preventer of the present invention.
Fig. 5 is the released state structural representation of the embodiment three of the flashboard locking state display unit of preventer of the present invention.
Fig. 6 is the right pseudosection of released state of the embodiment three of the flashboard locking state display unit of preventer of the present invention.
Fig. 7 is the right pseudosection of locking state of the embodiment three of the flashboard locking state display unit of preventer of the present invention.
Fig. 8 is the released state structural representation of the embodiment four of the flashboard locking state display unit of preventer of the present invention.
Fig. 9 is the right pseudosection of released state of the embodiment four of the flashboard locking state display unit of preventer of the present invention.
Figure 10 is the right pseudosection of locking state of the embodiment four of the flashboard locking state display unit of preventer of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, ordinary skill technician, in the every other embodiment without the need to obtaining under making creative work prerequisite, belongs to the scope of protection of the invention.
embodiment one
Fig. 1 is the released state structural representation of the embodiment one of the flashboard locking state display unit of preventer of the present invention, comprise side door 11, fluid cylinder 12, piston 13, lock shaft 14, cylinder cap 15 and display unit 20, be embedded with Nd Fe B alloys 16 in lock shaft 14 end.Display unit 20 comprises display end cap 21, observation port 22 and steel ball 23, and the rounded material of observation port 22 profile is tempered glass, and its surface scribbles anti-pollution layer.Display end cap 21 material is 1Cr18Ni, display end cap 21 has inner chamber 24, and shape is taper, and display end cap 21 and observation port 22 sealing are fixed together, be enclosed in by steel ball 23 in inner chamber 24, steel ball 23 is movable to optional position in inner chamber 24 under magneticaction.When lock shaft 14 is in released state, Nd Fe B alloys 16 in lock shaft 14 end attracts steel ball 23 to overcome gravity suffered by it and arrives the centre of conical internal cavity 24, the phenomenon observed through observation port 22 from outside is the home position that steel ball 23 is in observation port, thus confirm that lock shaft 14 is in released state, and then determine that flashboard is in open mode.
Fig. 2 is the locking state structural representation of the embodiment one of the flashboard locking state display unit of preventer of the present invention.When piston 13 drives lock shaft 14 to well head central motion, Nd Fe B alloys 16 in lock shaft 14 end is away from steel ball 16, thus lose the magnetic force of steel ball 23 is attracted, conical internal cavity 24 lower edge fallen under gravity by steel ball 16, the phenomenon observed through observation port 22 from outside is the non-home position that steel ball 23 is in observation port, thus confirm that lock shaft 14 is in locking state, and then determine that flashboard is in closed condition.
embodiment two
Fig. 3 is the released state structural representation of the embodiment two of the flashboard locking state display unit of preventer of the present invention.Fig. 4 is the locking state structural representation of the embodiment two of the flashboard locking state display unit of preventer of the present invention.As shown in Figure 3 and Figure 4, the structure of the present embodiment is substantially identical with the structure of embodiment 1, effect and view mode also identical, its difference is: instead of the steel ball 23 in embodiment 1 with ferrofluid 231.
embodiment three
Fig. 5 is the released state structural representation of the embodiment three of the flashboard locking state display unit of preventer of the present invention.Fig. 6 is the right pseudosection of released state of the embodiment three of the flashboard locking state display unit of preventer of the present invention.Comprise side door 11, fluid cylinder 12, piston 13, lock shaft 14, cylinder cap 15 and display unit 20, be embedded with fixing Nd Fe B alloys 16 in lock shaft 14 end.Display unit 20 comprises display end cap 21, observation port 22 and steel ball 23, and observation port 22 profile is its material of circular arc is the tempered glass that surface scribbles anti-pollution layer.Display end cap 21 material is 1Cr18Ni9, display end cap 21 has inner chamber 24, shape is the arc-shaped slot corresponding with observation port 22, display end cap 21 and observation port 22 sealing are fixed together, be enclosed in by steel ball 23 in inner chamber 24, steel ball 23 is movable to optional position in inner chamber 24 under magneticaction.When lock shaft 14 is in released state, Nd Fe B alloys 16 in lock shaft 14 end attracts steel ball 23 to make it be in the lower position of inner chamber 24, the phenomenon observed through observation port 22 from outside is the lower position that steel ball 23 is in observation port, thus confirm that lock shaft 14 is in released state, and then determine that flashboard is in open mode.
Fig. 7 is the right pseudosection of locking state of the embodiment three of the flashboard locking state display unit of preventer of the present invention.When lock shaft 14 turns clockwise, Nd Fe B alloys 16 attracts steel ball 23 and drives it to move.When lock shaft 14 completes locking, the upper position that Nd Fe B alloys 16 will attract steel ball 23 to arrive inner chamber 24, the phenomenon observed through observation port 22 from outside is the upper position that steel ball 23 is in observation port, thus confirms that lock shaft 14 is in locking state, and then determines that flashboard is in closed condition.
embodiment four
Fig. 8 is the released state structural representation of the embodiment four of the flashboard locking state display unit of preventer of the present invention.Fig. 9 is the right pseudosection of released state of the embodiment four of the flashboard locking state display unit of preventer of the present invention.Figure 10 is the right pseudosection of locking state of the embodiment four of the flashboard locking state display unit of preventer of the present invention.The structure of the present embodiment is substantially identical with the structure of embodiment three, effect and view mode also identical, its difference is: instead of the steel ball 23 in embodiment three with ferrofluid 231.
Especially, observation port 22 edge in above embodiment and steel ball 23 surface scribble and at the fluorescent material of display at night, also containing the fluorescent material that can show at night in ferrofluid 231, can make above embodiment by the restriction at daytime, night.
As can be seen here, these schemes can reach effect of the present invention, not by the restriction of above-mentioned illustrated embodiment.
In sum, the present invention does not need the frame for movements such as spring, does not have exposed part, be a kind of contactless display unit, structure is simple, and required parts are less, processing cost and fault rate are reduced, and reliability, maintenance convenience improve, and make also can show at night.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (10)
1. the flashboard locking state display unit of a preventer, comprise lock shaft, cylinder cap, display unit, display unit is fixed on cylinder cap, it is characterized in that, described display unit comprises display end cap, observation port, display object, described display end is stamped inner chamber, display object is had in described inner chamber, described display end cap and observation port sealing are fixed together, display object is closed in the lumen, described display object is movable to optional position in inner chamber under external force, described lock shaft material therefor is that retentive material or lock shaft and display unit adjacent end portion are embedded in retentive material.
2. the flashboard locking state display unit of preventer as claimed in claim 1, is characterized in that the retentive material that described lock shaft retentive material used or lock shaft and display unit adjacent end portion are embedded in is high-carbon steel, Nd Fe B alloys, alnico alloy or ferrite.
3. the flashboard locking state display unit of preventer as claimed in claim 1, is characterized in that described display end cap is paramagnetic material or antimagnetic material.
4. show end cap as claimed in claim 3, it is characterized in that the material of described display end cap is copper or austenitic stainless steel, its cavity shape is basin shape or taper or annular.
5. the flashboard locking state display unit of preventer as claimed in claim 1, it is characterized in that described observation port material therefor is transparent material, there is anti-pollution layer on its surface.
6. observation port as claimed in claim 5, is characterized in that the material of described observation port is tempered glass, and its marginal portion scribbles can at the fluorescent material of display at night.
7. the flashboard locking state display unit of preventer as claimed in claim 1, is characterized in that described display object material therefor is hard magnetic material or soft magnetic materials.
8. display object as claimed in claim 7, is characterized in that described display object material therefor is high-carbon steel.
9. display object as claimed in claim 1, is characterized in that the state of described display object is globular solids or pulverulent solids, and its surface scribbles can at the fluorescent material of display at night.
10. the flashboard locking state display unit of preventer as claimed in claim 1, is characterized in that the state of described display object is fluid, its material ferrofluid, containing the fluorescent material that can show at night in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215184.8A CN104847297A (en) | 2015-04-30 | 2015-04-30 | Flashboard locking state display device of blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215184.8A CN104847297A (en) | 2015-04-30 | 2015-04-30 | Flashboard locking state display device of blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847297A true CN104847297A (en) | 2015-08-19 |
Family
ID=53847224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510215184.8A Pending CN104847297A (en) | 2015-04-30 | 2015-04-30 | Flashboard locking state display device of blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284851A (en) * | 2019-07-26 | 2019-09-27 | 唐建华 | A kind of Ram Preventer Hydraulic Locking Device |
| CN112112597A (en) * | 2020-09-07 | 2020-12-22 | 中国石油天然气集团有限公司 | Flashboard state display device of hydraulic locking mechanism of flashboard blowout preventer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350740Y (en) * | 1998-10-13 | 1999-11-24 | 杨滨 | Band tracer magnetic float level meter |
| CN2672283Y (en) * | 2004-01-13 | 2005-01-19 | 广汉川油井控装备有限公司 | Controller of blowout preventer switch |
| US20060169933A1 (en) * | 2005-02-01 | 2006-08-03 | Le Tri C | Blowout preventer and locking mechanism |
| CN200952376Y (en) * | 2006-10-16 | 2007-09-26 | 上海神开石油化工装备集团有限公司 | Automatic hydraulic locking device of flashboard blow-out preventer for petroleum and natural gas drilling |
| CN101059183A (en) * | 2006-10-16 | 2007-10-24 | 唐剑波 | Magnetic valve with open-close display device and its production method |
| CN101328788A (en) * | 2008-07-18 | 2008-12-24 | 宝鸡石油机械有限责任公司 | Remote control type ram block hydraulic locking apparatus |
-
2015
- 2015-04-30 CN CN201510215184.8A patent/CN104847297A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2350740Y (en) * | 1998-10-13 | 1999-11-24 | 杨滨 | Band tracer magnetic float level meter |
| CN2672283Y (en) * | 2004-01-13 | 2005-01-19 | 广汉川油井控装备有限公司 | Controller of blowout preventer switch |
| US20060169933A1 (en) * | 2005-02-01 | 2006-08-03 | Le Tri C | Blowout preventer and locking mechanism |
| CN200952376Y (en) * | 2006-10-16 | 2007-09-26 | 上海神开石油化工装备集团有限公司 | Automatic hydraulic locking device of flashboard blow-out preventer for petroleum and natural gas drilling |
| CN101059183A (en) * | 2006-10-16 | 2007-10-24 | 唐剑波 | Magnetic valve with open-close display device and its production method |
| CN101328788A (en) * | 2008-07-18 | 2008-12-24 | 宝鸡石油机械有限责任公司 | Remote control type ram block hydraulic locking apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284851A (en) * | 2019-07-26 | 2019-09-27 | 唐建华 | A kind of Ram Preventer Hydraulic Locking Device |
| CN112112597A (en) * | 2020-09-07 | 2020-12-22 | 中国石油天然气集团有限公司 | Flashboard state display device of hydraulic locking mechanism of flashboard blowout preventer |
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| C06 | Publication | ||
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150819 |
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