CN201486507U - Hydraulic side-door opening blowout preventer - Google Patents
Hydraulic side-door opening blowout preventer Download PDFInfo
- Publication number
- CN201486507U CN201486507U CN2009201669258U CN200920166925U CN201486507U CN 201486507 U CN201486507 U CN 201486507U CN 2009201669258 U CN2009201669258 U CN 2009201669258U CN 200920166925 U CN200920166925 U CN 200920166925U CN 201486507 U CN201486507 U CN 201486507U
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- side door
- cylinder cap
- hole
- hollow bolt
- cylinder
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- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic side-door opening blowout preventer, which is applied to oil wellhead control. The hydraulic side-door opening blowout preventer is characterized in that: a shell of the blowout preventer is fixed with side-door hollow bolts and side-door solid bolts; a side door of the blowout preventer is fixed on the shell through the side-door hollow bolts, side-door nuts, the side-door solid bolts and the side-door screw caps; the shell is provided with an oil way opening hole which is communicated with screwed holes of the side-door hollow bolts; the end parts of the side-door hollow bolts are fixed with a small hydraulic cylinder respectively; the tops of two small piston rods are provided with connecting plates; and the middle parts of the connecting plates are fixed with cylinder caps. The hydraulic side-door opening blowout preventer has the advantages that: two small hydraulic cylinders are utilized to push the connecting plates and the connecting plates drive the cylinder caps and the side door, so the quick side-door opening can be realized, and a ram of the blowout preventer can be safely and quickly replaced.
Description
Technical field
The utility model relates to the oil well head control device, and particularly a kind of preventer is a kind of hydraulic pressure opening side door preventer.
Background technology
At present, in conventional preventer operation or well workover, usually need change the flashboard that is fit to different apertures, or the flashboard that damages is changed at different drilling rods, oil pipe.In changing the process of flashboard, need dismounting side door bolt also to open side door, change the flashboard operation after making flashboard expose outside the housing.The side door of existing preventer adopts hinge seat to be connected with housing, and under the big situation of side door assembly weight, the frictional force at hinge seat place increases, and causes and opens difficulty.The preventer that has adopts and opens, the closure piston bar carries out the switch side door, and when piston rod was positioned at flashboard chamber horizon, double ram type preventer cavity of resorption flashboard was subjected to spatial constraints to be difficult for taking out.When above or below piston rod is positioned at flashboard chamber horizon, at hydraulic pressure opening, close in the side door process, because the friction of the sealing of flashboard top and housing, open, the closure piston bar is vulnerable to moment of deflection, causes the damage of piston rod.At above deficiency, design the ram preventer that a kind of novel hydraulic is opened the side door assembly, reduce labor intensity, make the replacing flashboard convenient and swift.
The utility model content
The purpose of this utility model is: a kind of hydraulic pressure opening side door preventer is provided, can realizes opening side door fast, reach safely, change fast ram block.
The technical solution adopted in the utility model is: hydraulic pressure opening side door preventer, mainly form by the flashboard in housing, side door, side door hollow bolt, side door nut, small liquid jar, small piston rod, little cylinder cap, junction plate, cylinder cap, bearing pin and the housing.It is characterized in that: four screwed holes, four rectangular arrangements in screwed hole center are arranged around each flashboard chamber of preventer housing.Having in one group of diagonal angle screwed hole of four screwed holes, fixing side door hollow bolt respectively.The end of side door hollow bolt is fixed with the side door nut.In another group diagonal angle screwed hole, the fixing solid bolt of side door respectively.Be fixed with the side door nut in the end of the solid bolt of side door.By side door hollow bolt, side door nut and the solid bolt of side door, side door nut the side door of preventer is fixed on the housing.
The oil circuit of unlatching hole is arranged on housing, open the oil circuit hole and be communicated with the screwed hole of side door hollow bolt respectively.The side door hollow bolt has central through hole.Hydraulic oil can be by opening the central through hole that the oil circuit hole enters the side door hollow bolt.Be fixed with a small liquid jar in the end of side door hollow bolt.Small piston rod is arranged in small liquid jar, be fixed with little cylinder cap on the top of small liquid jar.Small piston rod passes little cylinder cap centre bore.Fix a junction plate at the top of two small piston rods.The middle part of junction plate is cylinder cap fixedly.When laying down side door nut and side door nut and small piston rod and released by hydraulic pressure, small piston rod promotes junction plate and also drives cylinder cap and open.Cylinder cap can be changed the flashboard operation after opening.
Side door hollow bolt one end has external screw thread, and the external screw thread root has the groove that can hold O-ring seals.The other end has external screw thread, and there is cylinder externally threaded end, and cylinder has internal thread and Zhi Kou, and straight mouthful is the cylindrical hole that internal diameter size is slightly larger than internal thread.The side door hollow bolt has centre bore to run through whole side door hollow bolt.
Side door nut one end has internal thread, and the internal thread of side door nut cooperates with the external screw thread of side door hollow bolt.The other end of side door nut has through hole, and through-hole diameter is slightly larger than side door hollow bolt cylindrical, and is slightly larger than the cylindrical of small liquid jar, and the side door nut outer wall has outer six sides.
Small liquid jar one end has external screw thread and oil circuit hole, the external screw thread end is the ladder cylinder, the groove that can hold O-ring seals is arranged on the ladder cylinder, the oil circuit hole communicates with the fluid cylinder endoporus, the outer wall of small liquid jar has two circular grooves, the other end of small liquid jar has internal thread and Zhi Kou, and straight mouthful size is greater than internal thread.
The body of rod one end of small piston rod has piston, and the groove that can hold combination seal is arranged on the piston, and the body of rod other end of small piston rod has the through hole perpendicular to body of rod axis.
Little cylinder cap is the ladder cylinder bodily form, and little cylinder cap one end has external screw thread, and the little cylinder cap other end is a cylinder, between cylinder and external screw thread cylindrical step is arranged.The groove that can hold sealing ring is arranged on cylindrical step.There is the oil circuit hole little cylinder cap inside, and little cylinder cap oil circuit hole communicates with the external world.
Cylinder cap connecting hole perpendicular to junction plate is arranged in the middle of the junction plate, and the end of cylinder cap can be inserted in the cylinder cap connecting hole.In the both sides of cylinder cap connecting hole the fixing hole vertical with the cylinder cap connecting hole arranged respectively.In fixing hole, insert pivot pin, cylinder cap and junction plate can be fixed together.
The tangible annular semicircle groove on the cylinder cap top.Behind junction plate fixing hole insertion pivot pin, pivot pin enters shape annular semicircle groove, cylinder cap and junction plate can be fixed.
In order to make energy parallel sliding in the side door opening process, on the outer wall of small liquid jar, lining is arranged.Lining is the semicircle that the cylinder-symmetrical cutting forms, and two boss are arranged in the lining endoporus.When opening side door with lining to the outer wall that is buckled in small liquid jar on, two boss in the lining mate with two grooves of small liquid jar outer wall.
Open the operation of side door assembly: consult Fig. 1.
When needs are changed flashboard, with high-pressure hose with 101 oil circuit holes on the housing both sides and be unified into and open the oil circuit interface, with high-pressure hose with the oil circuit hole on two little cylinder caps 7 and be unified into and close the oil circuit interface.Unclamp side door nut 4 and side door nut 44, and side door nut 4 is skidded off from the left side along small liquid jar 5.Two semicircular linings 11 are fastened on the small liquid jar 5, at this moment, lining 11 left ends have certain-length to insert in the side door bolt hole of side door 2, at side door 2 during to left movement, prevent that the external screw thread on the side door hollow bolt 3 from being scratched by side door 2, two boss in lining 11 endoporus align fixing respectively with groove on the small liquid jar 5, prevent that lining 11 from moving during to left movement at side door 2 thereupon.Inject hydraulic oil to opening oil circuit, hydraulic oil is by 101 holes, the centre bore of side door hollow bolt 3, small liquid jar 5 oil circuit holes, enter small piston rod 6 left ends, promote small piston rod 6 and move right, small piston rod 6 drives the side door assembly and moves right together by bearing pin 10, junction plate 8, cylinder cap 9.Close little cylinder cap 7 oil circuit holes.When the side door assembly was moved to the left, the bolt hole in the side door 2 contacted with lining 11 external surfaces all the time, has protected the external screw thread on the side door hollow bolt 3.Because small piston rod 6 parts such as grade are the diagonal assembling, the flashboard in the last lower flashboard chamber all can take out easily from horizontal level, has improved operating efficiency.Simultaneously, small piston rod 6 open areas of this structure are greater than closing area, when flashboard during big or jam, can provide bigger power to pull out flashboard at the housing internal friction.When closing the side door assembly, only need the less clothes motion of making every effort to overcome to rub.This layout structure is consistent with the practical operation requirement, has optimized product structure.When the side door assembly was in opening, the weight of side door assembly acted on the centre position of lining 11, and power acts on the housing by lining 11, small liquid jar 5, side door hollow bolt 3, side door assembly cantilever is little, side door hollow bolt 3 diameters are big, and integral rigidity is strong, and the side door assembly moves down little.The horizontal slide force of 6 generation switches of small piston rod side door assembly is not subjected to other external force, and stressing conditions is good, is difficult for producing distortion.
After changing flashboard, inject hydraulic oil to closing oil circuit, hydraulic oil to small piston rod 6 right-hand members, promotes small piston rod 6 to left movement by little cylinder cap 7 oil circuit holes, drive the side door assembly and be moved to the left by bearing pin 10, junction plate 8, cylinder cap 9, opening oil circuit hole 101 is oil return line.After the side door assembly moves to the left end terminal point and housing 1 contacts, take out lining 11, extract four interior on junction plate bearing pins 10, take off junction plate 8, be inserted in side door nut 3 and hydraulic spanner from small piston rod 6 right-hand members, side door nut 3 and solid bolt 33 are progressively tightened in the diagonal angle.Take out hydraulic spanner, junction plate 8 is installed.
The beneficial effects of the utility model: the utility model hydraulic pressure opening side door preventer, utilize two small liquid jars to promote junction plate, junction plate drives cylinder cap and side door, can realize opening fast side door, can change ram block safely, fast.
Description of drawings
Fig. 1 is half contour structures schematic diagram of the utility model hydraulic pressure opening side door preventer.
Fig. 2 is the right view of Fig. 1.
Partial cutaway schematic when Fig. 3 is the side door closed condition.
Partial cutaway schematic when Fig. 4 is the side door opening.
Fig. 5 is solid bolt of side door and side door fixed by nut side door schematic diagram.
Fig. 6 is a side door hollow bolt structural representation.
Fig. 7 a is a side door nut generalized section; Fig. 7 b is the left view of Fig. 7 a.
Fig. 8 is the small liquid jar generalized section.
Fig. 9 is the small piston rod structural representation.
Figure 10 is little cylinder cap structural representation.
Figure 11 is the cylinder cap structural representation.
Figure 12 is the junction plate generalized section.
Among the figure, 1. housing, 2. side door, 3. side door hollow bolt, 4. side door nut, 5. small liquid jar, 6. small piston rod, 7. little cylinder cap, 8. junction plate, 9. cylinder cap, 10. bearing pin, 11. linings, 12.O the shape sealing ring, 13. combination seals, 33. solid bolts, 44. side door nuts, 101. open the oil circuit hole.
The specific embodiment
Embodiment 1: with a hydraulic pressure opening side door preventer is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model hydraulic pressure opening side door preventer mainly is made up of the flashboard in housing 1, side door 2, side door hollow bolt 3, side door nut 4, small liquid jar 5, small piston rod 6, little cylinder cap 7, junction plate 8, cylinder cap 9, bearing pin 10 and the housing 1.Four screwed holes, four rectangular arrangements in screwed hole center are arranged around each flashboard chamber of preventer housing 1.Having in one group of diagonal angle screwed hole of four screwed holes, fix a side door hollow bolt 3 respectively.The end of side door hollow bolt 3 is fixed with a side door nut 4.In another group diagonal angle screwed hole, fix a solid bolt 33 of side door respectively.Be fixed with a side door nut 44 in the end of the solid bolt 33 of side door.By two side door hollow bolts 3, side door nut 4 (consulting Fig. 3) and two the solid bolts 33 of side door, side door nuts 44 (participation Fig. 5) side door 2 of preventer is fixed on the housing 1.
The oil circuit of unlatching hole 101 is arranged on housing 1, open oil circuit hole 101 and be communicated with the screwed hole of side door hollow bolt 3 respectively.Side door hollow bolt 3 has central through hole.Hydraulic oil can be by opening the central through hole that oil circuit hole 101 enters side door hollow bolt 3.End thread at side door hollow bolt 3 is fixed with a small liquid jar 5.Between connection of thread and small piston rod 6 and little cylinder cap 7, O-ring seals 12 is arranged.Between small piston rod 6 and small liquid jar 5, combination seal 13 is arranged.
Consult Fig. 3.Small piston rod 6 is arranged in small liquid jar 5, be fixed with little cylinder cap 7 on the top of small liquid jar 5.Small piston rod 6 passes little cylinder cap 7 centre bores.Utilize bearing pin to fix a junction plate 8 respectively at the top of two small piston rods 6.The middle part of junction plate 8 utilizes fixedly cylinder cap 9 of two pivot pins.When laying down side door nut 4 and side door nut 44 and small piston rod 6 and released by hydraulic pressure, small piston rod 6 promotes junction plates 8 and also drives cylinder cap 9 and open.After opening, cylinder cap 9 can change the flashboard operation.Consult Fig. 4.
Consult Fig. 6.Side door hollow bolt 3 one ends have external screw thread, and the external screw thread root has the groove that can hold O-ring seals 12 for one.The other end has external screw thread, and there is cylinder externally threaded end, and cylinder has internal thread and Zhi Kou, and straight mouthful is the cylindrical hole that internal diameter size is slightly larger than internal thread.Side door hollow bolt 3 has centre bore to run through whole side door hollow bolt 3.
Consult Fig. 7 a.Side door nut 4 one ends have internal thread, and the internal thread of side door nut 4 cooperates with the external screw thread of side door hollow bolt 3.The other end of side door nut 4 has through hole, and through-hole diameter is slightly larger than side door hollow bolt 3 cylindricals, and is slightly larger than the cylindrical of small liquid jar 5.Consult Fig. 7 b.Side door nut 4 outer walls have outer six sides, and outer six can use spanner to fix.
Consult Fig. 8.Small liquid jar 5 one ends have external screw thread and oil circuit hole, the external screw thread end is the ladder cylinder, the groove that can hold O-ring seals 12 is arranged on the ladder cylinder, the oil circuit hole communicates with the fluid cylinder endoporus, the outer wall of small liquid jar 5 has two circular grooves, the other end of small liquid jar 5 has internal thread and Zhi Kou, and straight mouthful size is greater than internal thread.
Consult Fig. 9.The body of rod one end of small piston rod 6 has piston, and the groove that can hold combination seal 13 is arranged on the piston, and the body of rod other end of small piston rod 6 has the through hole perpendicular to body of rod axis, and through hole can pass bearing pin, fixed connecting plate 8.
Consult Figure 10.Little cylinder cap 7 is the ladder cylinder bodily form, and little cylinder cap 7 one ends have external screw thread, and little cylinder cap 7 other ends are cylinder, between cylinder and external screw thread cylindrical step are arranged.The groove that can hold sealing ring 12 is arranged on cylindrical step.There is an oil circuit hole little cylinder cap 7 inside, and little cylinder cap 7 oil circuit holes communicate with the outside.
Consult Figure 11.Cylinder cap connecting hole perpendicular to junction plate 8 is arranged in the middle of the junction plate 8, and the end of cylinder cap 11 can be inserted in the cylinder cap connecting hole.In the both sides of cylinder cap connecting hole the fixing hole vertical with the cylinder cap connecting hole arranged respectively.In fixing hole, insert pivot pin, cylinder cap 11 and junction plate 8 can be fixed together.
Consult Figure 12.At the tangible annular semicircle groove in cylinder cap 9 tops.Behind junction plate 8 fixing holes insertion pivot pin, pivot pin enters shape annular semicircle groove, can cylinder cap 9 is fixing with junction plate 8.
Consult Fig. 4.Lining 11 is arranged on the outer wall of small liquid jar 5.Lining 11 is semicircles that the cylinder-symmetrical cutting forms.When opening side door 2 11 pairs of linings are buckled on the outer wall of small liquid jar 5, boss in lining 11 endoporus and the groove of small liquid jar 5 coupling prevent that lining 11 from moving axially.
Claims (9)
1. hydraulic pressure opening side door preventer, mainly by housing (1), side door (2), side door hollow bolt (3), side door nut (4), small liquid jar (5), small piston rod (6), little cylinder cap (7), junction plate (8), cylinder cap (9), flashboard in bearing pin (10) and the housing (1) is formed, it is characterized in that: four screwed holes are arranged around each flashboard chamber of preventer housing (1), four rectangular arrangements in screwed hole center, having in one group of diagonal angle screwed hole of four screwed holes, fixing side door hollow bolt (3) respectively, the end of side door hollow bolt (3) is fixed with side door nut (4), in another group diagonal angle screwed hole, the fixing solid bolt of side door (33) respectively, be fixed with side door nut (44) in the end of the solid bolt of side door (33), by side door hollow bolt (3), side door nut (4) and the solid bolt of side door (33), side door nut (44) is fixed on the side door (2) of preventer on the housing (1);
The oil circuit hole (101) of unlatching is arranged on housing (1), opening oil circuit hole (101) is communicated with the screwed hole of side door hollow bolt (3) respectively, side door hollow bolt (3) has central through hole, be fixed with a small liquid jar (5) in the end of side door hollow bolt (3), small piston rod (6) is arranged in small liquid jar (5), be fixed with little cylinder cap (7) on the top of small liquid jar (5), small piston rod (6) passes little cylinder cap (7) centre bore, fix a junction plate (8) at the top of two small piston rods (6), the middle part of junction plate (8) is cylinder cap (9) fixedly.
2. hydraulic pressure opening side door preventer according to claim 1, it is characterized in that: described side door hollow bolt (3) one ends have external screw thread, the external screw thread root has the groove that can hold O-ring seals (12), the other end has external screw thread, there is cylinder externally threaded end, cylinder has internal thread and Zhi Kou, and side door hollow bolt (3) has centre bore to run through whole side door hollow bolt (3).
3. hydraulic pressure opening side door preventer according to claim 1, it is characterized in that: described side door nut (4) one ends have internal thread, the internal thread of side door nut (4) cooperates with the external screw thread of side door hollow bolt (3), the other end of side door nut (4) has through hole, and side door nut (4) outer wall has outer six sides.
4. hydraulic pressure opening side door preventer according to claim 1, it is characterized in that: described small liquid jar (5) one ends have external screw thread and oil circuit hole, the external screw thread end is the ladder cylinder, the groove that can hold O-ring seals (12) is arranged on the ladder cylinder, the oil circuit hole communicates with the fluid cylinder endoporus, the outer wall of small liquid jar (5) has two circular grooves, and the other end of small liquid jar (5) has internal thread and Zhi Kou.
5. according to claim 1,2,3 or 4 described hydraulic pressure opening side door preventers, it is characterized in that: the body of rod one end of described small piston rod (6) has piston, the groove that can hold combination seal (13) is arranged on the piston, and the body of rod other end of small piston rod (6) has the through hole perpendicular to body of rod axis.
6. according to claim 1,2,3 or 4 described hydraulic pressure opening side door preventers, it is characterized in that: described little cylinder cap (7) is the ladder cylinder bodily form, little cylinder cap (7) one ends have external screw thread, little cylinder cap (7) other end is a cylinder, between cylinder and external screw thread, cylindrical step is arranged, the groove that can hold sealing ring (12) is arranged on cylindrical step, and there is the oil circuit hole little cylinder cap (7) inside, and little cylinder cap (7) oil circuit hole communicates with the external world.
7. according to claim 1,2,3 or 4 described hydraulic pressure opening side door preventers, it is characterized in that: the cylinder cap connecting hole perpendicular to junction plate (8) is arranged in the middle of the junction plate (8), the end of cylinder cap (11) can be inserted in the cylinder cap connecting hole, in the both sides of cylinder cap connecting hole the fixing hole vertical with the cylinder cap connecting hole arranged respectively, in fixing hole, insert pivot pin, cylinder cap (11) and junction plate (8) can be fixed together.
8. according to claim 1,2,3 or 4 described hydraulic pressure opening side door preventers, it is characterized in that: at the tangible annular semicircle groove in cylinder cap (9) top.
9. according to claim 1,2,3 or 4 described hydraulic pressure opening side door preventers, it is characterized in that: lining (11) is arranged on the outer wall of small liquid jar (5), and lining (11) is the semicircle that the cylinder-symmetrical cutting forms, and lining (11) endoporus has boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201669258U CN201486507U (en) | 2009-07-21 | 2009-07-21 | Hydraulic side-door opening blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201669258U CN201486507U (en) | 2009-07-21 | 2009-07-21 | Hydraulic side-door opening blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486507U true CN201486507U (en) | 2010-05-26 |
Family
ID=42425389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201669258U Expired - Lifetime CN201486507U (en) | 2009-07-21 | 2009-07-21 | Hydraulic side-door opening blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486507U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071897A (en) * | 2010-12-30 | 2011-05-25 | 宝鸡市赛孚石油机械有限公司 | Side door blowout preventing box |
| CN104827274A (en) * | 2014-02-12 | 2015-08-12 | 刘振东 | Side door opening apparatus of ram blowout preventer |
| CN116201498A (en) * | 2023-03-15 | 2023-06-02 | 四川宏华石油设备有限公司 | Blowout preventer capable of rapidly opening side door and working method thereof |
-
2009
- 2009-07-21 CN CN2009201669258U patent/CN201486507U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071897A (en) * | 2010-12-30 | 2011-05-25 | 宝鸡市赛孚石油机械有限公司 | Side door blowout preventing box |
| CN102071897B (en) * | 2010-12-30 | 2013-07-10 | 宝鸡市赛孚石油机械有限公司 | Side door blowout preventing box |
| CN104827274A (en) * | 2014-02-12 | 2015-08-12 | 刘振东 | Side door opening apparatus of ram blowout preventer |
| CN116201498A (en) * | 2023-03-15 | 2023-06-02 | 四川宏华石油设备有限公司 | Blowout preventer capable of rapidly opening side door and working method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |