CN209568991U - A kind of hydraulic manual double ram type preventer - Google Patents
A kind of hydraulic manual double ram type preventer Download PDFInfo
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- CN209568991U CN209568991U CN201921129569.2U CN201921129569U CN209568991U CN 209568991 U CN209568991 U CN 209568991U CN 201921129569 U CN201921129569 U CN 201921129569U CN 209568991 U CN209568991 U CN 209568991U
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Abstract
A kind of hydraulic manual double ram type preventer, including layer shell parallel to each other and lower layer's shell, the well head channel two sides of every layer of enclosure interior have symmetrical left flashboard room and right flashboard room, respectively there are one and half envelope ram blocks in flashboard room in the layer shell, the half envelope ram blocks are connected separately with hydraulic drive mechanism, and the half envelope ram blocks can be driven the annular space blocked between sucker rod and oil jacket from two sides to intermediary movements by the hydraulic drive mechanism；Respectively there is one piece of blind rams block, the blind rams block is separately connected Manual drive mechanism, and the blind rams block can be driven from two sides to intermediary movements by Manual drive mechanism and block flow string in the flashboard room of lower layer's shell.Avoid well head well control risk and production loss caused by playing pressure because abnormal, after installation can autostop close preventer, full-automatic well head can be cooperated to monitor and closing well operation.
Description
Technical field
The utility model relates to a kind of hydraulic manual double ram type preventers, suitable for sealing producing well during oil exploitation
Sucker rod and oil jacket between annular space and flow string.
Background technique
Currently, generalling use bottom hole in mechanical oil production model and separating the method produced respectively, and liquid enters oil extraction pump
It is interior, it is discharged from sucker rod top, annular space of the gas between sucker rod and oil jacket is discharged by pressure itself, and adopts in well head
Oil is set interior oil gas and is converged again, enters single and export pipeline together.Gas in level pressure relief valve adjusting sleeve pipe is installed on casing
Body pressure, production tree top install preventer, an emergency situation is encountered need to shut down when, for closing well head, to prevent
Blowout, the generation of well kick accident guarantee the safety of operator and equipment.
With the increase of oilfield gas injection well, the oil jacket pressure increase of system in Tahe Oilfield Dynamical characteristic mouth is adopted at present to 40Mpa or more
There is following problems for the manual preventer of double disc；First is that manual operation is slow, emergency sealing can not be coped with, also can not
Cooperation is full-automatic to shut down, stops brake, automatic official seal spray apparatus function；Second is that needing the manual official seal of Field Force when artificial adjusting
The case where spray apparatus, since some preventer times are remote, frictional force is larger, and preventer is caused to fit badly is more, and there are well control wind
Danger, not can guarantee well head safe not only, it is also possible to cause the consuming of human resources: 2 well head thorn blind hole controls occur according to annual
Risk, pollution administration, kill-job, vehicle and personnel's goods and materials expense calculate, and can reduce at least 300,000 yuan of expense every year, oil-well strata damage
Bad, production loss and the Fire explosion grade being likely to occur are made trouble therefore can not be estimated；Third is that operator's great work intensity, is pressed
Scene is gone to carry out shutdown processing before needing staff according to each exception pressure, 1 mouthful is gone once for well average every 3 days.
With the development in oil field, the existing manual preventer of double disc has been unable to meet oilfield safety production requirement, but whole
Body changes the outfit, and there are a series of problems for preventer: labour cost is high, and the cost of preventer is also high；Well head is in shape out of control when changing the outfit
State, it is dangerous larger；Dangerous in the presence of lifting, program is cumbersome.
Utility model content
Oil recovery automation process can not be cooperated in order to solve the manual preventer of existing double disc, operation is slow, is easy aging closes
It is not tight and reveal, reinstall the problems such as program is complicated, at high cost, well control risk is big, the utility model do not destroy it is original anti-
Under the premise of spray apparatus ontology, upgrading is made improvements, proposes a kind of hydraulic manual double ram type preventer.
The technical solution of the utility model includes:
A kind of hydraulic manual double ram type preventer, it is characterised in that including layer shell parallel to each other and lower layer's shell,
The center of layer shell and lower layer's shell have with the two vertically through well head channel, the center well head channel of layer shell
The opening at top has sucker rod sealing mechanism, and the two sides of every layer of shell are respectively provided with shell side door, the shell side door
Outline border is connect with the housing seal, and the well head channel two sides of every layer of enclosure interior have symmetrical left flashboard room and You Zha
Plate room, and communicated respectively with the shell side door of two sides,
Respectively there is one and half envelope ram blocks, the half envelope flashboard in left flashboard room and right flashboard room in the layer shell
Block is connected separately with hydraulic drive mechanism, and the hydraulic drive mechanism is symmetrically distributed in the two sides of layer shell, including piston cylinder
Body, piston rod, piston and piston end cap, the bottom of the piston/cylinder are connect with the shell side door, the piston/cylinder
Top has the piston end cap, and the piston rod and piston are respectively positioned in the piston/cylinder, and one end of the piston rod is worn
The bottom of the piston/cylinder and the center of the shell side door are crossed, is connect with the ram blocks of the half envelope flashboard, the other end connects
The piston is connect, the space between the piston and the top of the piston/cylinder is closing well oil pocket, the piston and the work
The space of the bottom end of plug cylinder body is the oil pocket that drives a well, and the half envelope ram blocks can be driven by the hydraulic drive mechanism from a left side for two sides
Flashboard room and right flashboard room block the annular space between sucker rod and oil jacket to intermediary movements；
Respectively there is one piece of blind rams block, the blind rams block in the left flashboard room and right flashboard room of lower layer's shell
It is separately connected Manual drive mechanism, the Manual drive mechanism is symmetrically distributed in the two sides of lower layer's shell, the full envelope lock
Plate can be driven the left flashboard room from two sides, right flashboard room to block flow string to intermediary movements by Manual drive mechanism.
The preferred Manual drive mechanism includes manual flange, hand lever, hand piston bar and union cap, it is described manually
The bottom end of flange is connect with the shell side door, and top connects the union cap, and the hand piston bar and MLP Manual Lever Position are in institute
It states in manual flange, one end of hand piston bar passes through the bottom end of the manual flange and the center of the shell side door, with institute
The connection of blind rams block is stated, the other end is fixedly connected with one end of the hand lever, described in the other end stretching of the hand lever
The top of manual flange is fixed by the union cap.
The preferred hydraulic drive mechanism has a pair of of retaining mechanism, is located at the two of the hydraulic drive mechanism
Side, including check lock lever and impeller, the piston end cap are the cylindrical body of hollow perforation, and bottom is connected to the piston/cylinder
And opening is less than the cross section of the piston, the opening at top has the impeller, and the check lock lever is located at the piston end
Lid is internal, and one end of the check lock lever is fixedly connected with the piston, and the other end can be pushed by the impeller.
The preferred impeller is locking cap, and the locking cap and the inner thread at the top of the piston end cap connect
It connects.
The preferred hydraulic drive mechanism has a pair of of retaining mechanism, and the retaining mechanism is located at the hydraulic driving machine
The two sides of structure, including check lock lever, manual drawing article and impeller, the manual drawing article are the manual nut with bottom plate, outside
Wall is connect with the inner thread of the piston end cap, and the bottom of the bottom plate from the manual nut side wall extends internally and center
With through-hole, one end of the check lock lever passes through the through-hole and protrudes into the piston end cap and stretch out in the piston rod of the piston
End thread connection, the other end is in the nut and has flange, and the diameter of the flange is greater than the diameter of the through-hole,
The impeller is slided or is threadedly coupled with the opening at the top of the manual drawing article, and the impeller can push the locking
Bar.
The preferred impeller is locking cap, and the locking cap and the inner thread at the top of the manual drawing article connect
It connects.
The preferred retaining mechanism includes box spanner, and the box spanner includes sleeve and spanner, the sleeve set
On the locking cap.
The preferred sucker rod sealing mechanism includes packing, packing pressure cap, union cap and back of the body cap, and the packing is wrapped in
It stretching out on the open-topped sucker rod of the shell, the packing pressure cap is connect with the open-top screw thread of the case top,
It is enclosed in the bottom and side of the packing, for the union cap sleeve on the packing pressure cap, the back of the body cap is located at the union
The outside of cap is connected and fixed the union cap with the union cap thread.
There is top sealing in preferred each flashboard room, be arc elastic body, be affixed on the roof of the flashboard room on one side, it is another
It is close to the half envelope ram blocks and blind rams block in face.
The preferred hydraulic drive mechanism includes liquid controling pipe line, the liquid controling pipe line include drive a well oil pocket petroleum pipeline and
Closing well oil pocket petroleum pipeline, the oil pocket petroleum pipeline that drives a well are respectively communicated with drive a well oil pocket and the fuel tank, the closing well oil pocket
Petroleum pipeline is respectively communicated with the closing well oil pocket and fuel tank.
The advantageous effects of the utility model:
The utility model on the basis of the structural principle of existing wellhead blowout preventor, analyze its it is insufficient and there are the problem of, root
According to current oil field new process, new demand, new specification, it is transformed upgrading, the structure of original half envelope manual switch part is changed to
It surges control, half seals the closing well of flashboard, the movement that drives a well is realized by hydraulic drive mechanism, and material of main part selection is using pressure-bearing grade
Bie Genggao 35CrMo material, blind rams are only cut off or remove in sucker rod or fall into producing well still using manually controlling
In the case that equiprobability is extremely low, blind rams is just manually booted, comprehensive sealing function is carried out to flow string, forms two pass
Safety measure.After transformation: one is that of avoiding well head well control risk and production loss caused by playing pressure because abnormal, second is that can after installation
Autostop closes preventer, can cooperate full-automatic well head monitoring and closing well operation.And it surges and is not broken when controlling installation
Bad original blowout preventer body, original Manual drive mechanism integral demounting need to only be got off, then opening side gate housing, finally change
Hydraulic drive mechanism, realizes hydraulic control half and seals flashboard and carry out sealing to the annular space between sucker rod and oil jacket
Effect, can not only reduce cost, but also reduce person works' amount.
The hydraulic drive mechanism of two sides is run simultaneously, and operation logic is as follows: when closing well, the high pressure liquid pressure oil from fuel tank is logical
The closing well oil pocket that closing well oil pocket petroleum pipeline enters two sides piston/cylinder is crossed, pushes piston and piston rod inwardly, makes left and right half
Envelope flashboard is moved to wellbore centre respectively along the track that guiding rib in left and right flashboard room limits, meanwhile, the liquid to drive a well in oil pocket
For pressure oil under piston promotion, the oil pocket petroleum pipeline that driven a well flows back to fuel tank, realizes closing well.Drive a well when acting, high pressure liquid pressure oil into
Enter the oil pocket that drives a well of piston/cylinder, pushes piston and flashboard to speed away wellbore centre, half seals in flashboard retraction flashboard room；Together
When, the hydraulic oil in closing well oil pocket then flows back to fuel tank through closing well oil pocket petroleum pipeline, drives a well so as to realize.To sum up, pass through
Hydraulic drive mechanism realizes half automatic control to drive a well with closing well for sealing flashboard, meets production scene demand.
Hydraulic drive mechanism further includes retaining mechanism, and the retaining mechanism can be by check lock lever, locking cap and box spanner
Composition is driven a well using half envelope flashboard of hydraulic drive mechanism driving act with closing well under normal circumstances, without starting retaining mechanism；When
When hydraulic drive mechanism failure is not available, such as without hydraulic oil, then retaining mechanism is manually booted to realize that closing well is dynamic
Make, rotational sleeve spanner, locking cap is driven to rotate in piston end cap, move inwards, pushes check lock lever together with piston and piston
Bar moves inwardly, so that moving left and right half envelope flashboard to wellbore centre respectively in left and right flashboard room, realizes closing well.
The retaining mechanism also may include check lock lever, manual drawing article and projectile, and the other end of check lock lever has convex
Edge, and the diameter of flange is greater than the through-hole diameter of manual drawing article bottom plate, so as to be moved out by manual drawing article, directly
To bottom plate and when Hp contacts, manual drawing article is blocked with check lock lever, thus continue to turn manual nut can drive check lock lever to
Outer movement manually performs the operation that drives a well, therefore the retaining mechanism both can be with manual actuation liquid so that piston rod be pulled to run outward
It presses driving mechanism to execute closing well operation, and the operation that drives a well can be executed with manual actuation hydraulic drive mechanism.
Detailed description of the invention
Fig. 1 is the cross-sectional view schematic diagram of the hydraulic manual double ram type preventer of the embodiments of the present invention 1；
Fig. 2 is the schematic top plan view of the hydraulic manual double ram type preventer of the embodiments of the present invention 1；
Fig. 3 is the partial enlarged view of another embodiment of the retaining mechanism of the utility model.
Appended drawing reference: 1- packing pressure cap, 2- shell, 3- union cap, 4- back of the body cap, 5- rod packing, 6- shell side door, 7-
Lower layer's flashboard room, the upper layer 8- flashboard room, the sealing of the top 9-, 10- partly seal ram blocks, 11- blind rams block, the manual flange of 12-, 13-
Hand piston bar, 14- piston/cylinder, 15- manual gate union cap, 16- closing well oil pocket, 17- hand lever, 18- piston, 19- six
Hex bolt, 20- piston rod, 21- check lock lever, 22- piston end cap, 23- locking cap, 24- box spanner, hexagonal cylindrical in 25-
Head screw, 26- drive a well oil pocket petroleum pipeline, 27- closing well oil pocket petroleum pipeline, and 28- drives a well oil pocket, 29- threeway, the manual spiral shell of 30-
Mother, 31- bottom plate, 32- flange, 33- through-hole.
Specific embodiment
In order to which the content of the utility model is described in detail, will be described with reference to the accompanying drawings below by specific embodiment.
As shown in Figs. 1-2, a kind of hydraulic manual double ram type preventer of the present embodiment, including shell 2, one and half envelope locks
Plate, a pair of of blind rams.The shell 2 includes layer shell parallel to each other and lower layer's shell, and centre is the well of both perforations
The opening in mouth channel, the top center of layer shell has sucker rod sealing mechanism, and the two sides of every layer of shell are respectively shell
Side door 6, is hermetically connected with the shell, the distribution of the well head channel two sides of every layer of enclosure interior have symmetrical left flashboard room and
Right flashboard room, and communicated respectively with the shell side door 6 of two sides.
The half envelope flashboard includes two and half envelope ram blocks 10, is located at the left flashboard room and right flashboard room of layer shell
Interior, the half envelope ram blocks 10 have a pair of of hydraulic drive mechanism.The hydraulic drive mechanism is symmetrically distributed in upper layer flashboard room 8
Two sides, including piston/cylinder 14, piston rod 20, piston 18 and piston end cap 22, the bottom of the piston/cylinder 14 with it is described
Shell side door 6 is tightly connected, and the top of the piston/cylinder 14 has a piston end cap 22, and the piston rod 20 is with piston
18 slide in the piston/cylinder 14, wherein one end of the piston rod 20 passes through bottom and the institute of the piston/cylinder 14
The center for stating shell side door 6 connect with the half envelope ram blocks 10, the other end across the piston 18 center and with piston 18
It is sealedly and fixedly connected, the space between the piston 18 and the top of the piston/cylinder 14 is closing well oil pocket 16, the piston
18 and the space of the bottom end of the piston/cylinder 14 are the oil pocket 28 that drives a well, and the half envelope ram blocks 10 can be by the hydraulic-driven
Mechanism driving blocks the annular space between sucker rod and oil jacket from the left and right floor flashboard room of two sides to the intermediary movements of shell.
The blind rams include two pieces of blind rams blocks 11, be located at lower layer's flashboard room left flashboard room and right flashboard
Interior, blind rams block 11 have a pair of of Manual drive mechanism, and the Manual drive mechanism is symmetrically distributed in lower layer's flashboard room 7
Two sides, including manual flange 12, hand lever 17, hand piston bar 13 and union cap 15, the bottom end of the manual flange 12 and institute
The connection of shell side door 6 is stated, top is connected with union cap 15, and the hand piston bar 13 and hand lever 17 are located at the manual flange
In 12, wherein one end of hand piston bar 13 passes through the bottom end of the manual flange 12 and the center of the shell side door 6,
It is connect with the blind rams block 11, the other end is fixedly connected with one end of hand lever 17, and the other end of hand lever 17 reaches
The top of dynamic flange 12, it is fixed by the union cap 15.The part that the hand lever 17 is located at outer end is rotated, is inwardly run,
It drives hand piston bar 13 to move inwards, the blind rams block 11 of two sides is pushed to move respectively to wellbore centre from left and right flashboard room
It is dynamic, it realizes closing well, blocks flow string.
Top sealing 9 is all had in upper layer flashboard room 8 and lower layer's flashboard room 7, is semicircular arc, positioned at the top of the flashboard room
Wall, it is ensured that ram blocks and piston/cylinder 14 are sealings relative to intermediate well head channel.
The hydraulic drive mechanism further includes liquid controling pipe line, and the liquid controling pipe line includes drive a well oil pocket petroleum pipeline 26 and pass
Well oil pocket petroleum pipeline 27 is respectively positioned on the outside of the piston/cylinder 14, all has threeway, a branch line connects fuel tank, described
Drive a well oil pocket petroleum pipeline 26 remaining two branch lines connection two sides piston/cylinder 14 the oil pocket 28 that drives a well, the closing well oil pocket
The closing well oil pocket 16 of the piston/cylinder 14 of remaining two branch line connection two sides of petroleum pipeline 27.
The hydraulic drive mechanism also has a pair of of retaining mechanism, and the retaining mechanism is located at the hydraulic drive mechanism
Two sides, including check lock lever 21, locking cap 23 and box spanner 24, the piston end cap 22 are hollow cylindrical body, bottom and institute
The connection of piston/cylinder 14 is stated, described 21 one end of check lock lever is connect with the end thread for the piston rod 20 for stretching out in the piston 18,
As the locking cap 23 inwardly moves another end in contact with check lock lever 21, otherwise separate, the locking cap 23 and piston end
The inner thread of lid 22 connects, and 24 sets of box spanner on locking cap 23.Rotational sleeve spanner 24 drives locking cap 23 in institute
The inner wall rotation for stating the top of piston end cap 22 moves inwardly, and contacts the outer end of the check lock lever 21, manually by hydraulic drive
The piston rod 20 of motivation structure inwardly pushes, closing well；Or rotate backward locking cap 23 and move out, separated with the check lock lever 21 and
Unlock.
The sucker rod sealing mechanism includes rod packing 5, packing pressure cap 1, union cap 3 and back of the body cap 4, the sucker rod
Packing 5 is wrapped on the sucker rod for stretching out in the outside of the shell 2, the top opening of the packing pressure cap 1 and the shell 2
It is threadedly coupled, is enclosed in the bottom and side of the rod packing 5,3 sets of the union cap top in the packing pressure cap 1
Fixed rod packing 5, the back of the body cap 4 are located at the top of the union cap 3, are threadedly coupled with the union cap 3, lock union
Cap 3.
Above-mentioned hydraulic drive mechanism synchronous operation, operation logic are as follows: when closing well, the high pressure liquid pressure oil from fuel tank passes through
Closing well oil pocket petroleum pipeline enters the closing well oil pocket of two sides piston/cylinder, pushes piston and piston rod inwardly, makes left and right half to seal
Flashboard is moved to wellbore centre respectively along the track that guiding rib in left and right flashboard room limits, meanwhile, it drives a well hydraulic in oil pocket
For oil under piston promotion, the oil pocket petroleum pipeline that driven a well flows back to fuel tank, realizes closing well.It drives a well when acting, high pressure liquid pressure oil enters
The oil pocket that drives a well of piston/cylinder pushes piston and flashboard to speed away wellbore centre, and half seals in flashboard retraction flashboard room；Meanwhile
Hydraulic oil in closing well oil pocket then flows back to fuel tank through closing well oil pocket petroleum pipeline, drives a well so as to realize.
Shell side door described in the present embodiment 6 is end face seal flange, the surrounding hexagon-headed bolt 19 and shell 2 in outside
It is tightly connected；The manual flange 12 of Manual drive mechanism is connected by hexagon socket cap head screw 25 and end face seal flange seal
It connects.
It needs to loosen hexagon socket cap head screw 25 first when installation, original Manual drive mechanism all be removed, then
Hexagon-headed bolt 19 is being loosened, shell side door 6 is removed, the piston rod of above-mentioned hydraulic drive mechanism and half envelope ram blocks 10 is right
It connects, is tightening hexagon-headed bolt 19, and the bottom of piston/cylinder 14 is fixed on shell side door 6.
After the hydraulic manual double ram type preventer of the utility model embodiment is on probation, it is entirely capable of effectively cooperating automation control
The realization of well is switched, while sealing effect also reaches requirement, carries out pressure testing operation and comply fully with standard；It reduces because preventer closes not
Leakage is unloaded caused by tight, reduces the pollution to ambient enviroment, reduces duty person works' intensity, saves timeliness, while also shutting out
Well control accident absolutely.
Embodiment 2
A kind of hydraulic manual double ram type preventer of the present embodiment, other structures are same as Example 1, and difference is to lock
Mechanism.As shown in figure 3, the retaining mechanism includes check lock lever 21, manual nut 30, locking cap 23 and box spanner 24, it is described
Manual nut 30 is connect by the screw thread of outer wall with the inner thread of the piston end cap 22, and the bottom of bottom plate 31 from side wall is inside
Extend and center has through-hole 33, the piston end cap 22 is protruded by the through-hole 33 in one end of the check lock lever 21, and stretches
For the end thread connection of the piston rod 20 of the piston 18, the other end is located in the manual nut 30, has flange 32,
The diameter of the flange 32 is greater than the diameter of the through-hole 33 of the bottom plate 31.The retaining mechanism can manually perform the work that drives a well in this way
Industry, process are as follows: turning manual nut 30 and move out, until bottom plate 31 and the conflict of flange 32, then manual nut 30 and locking
Bar 21 blocks, so that continuing to turn manual nut 30 can drive check lock lever 21 to move out, to manually boot hydraulic driving machine
Structure, piston rod 20 pull out, and drive half envelope ram blocks 10 to speed away wellbore centre, manually perform the operation that drives a well.
The locking cap 23 is connect with the inner thread at the top of the manual nut 30, can relative to the manual nut
Rotation, so that locking cap 23 is contacted with the check lock lever 21 to push check lock lever 21, such retaining mechanism can manual actuation
Hydraulic drive mechanism executes closing well operation, and process is the same as embodiment 1.
In addition, the retaining mechanism of the present embodiment not only may be implemented manual actuation hydraulic drive mechanism execute closing well operation and
Drive a well operation, can also install the hydraulic drive mechanism and retaining mechanism in the case where not dismantling shell side door 6, avoid by
In the Leakage opening shell side door 6 and occurring, and installation procedure is further shortened, saves labour.
Claims (10)
1. a kind of hydraulic manual double ram type preventer, it is characterised in that including layer shell parallel to each other and lower layer's shell, In
The center of layer shell and lower layer's shell have with the two vertically through well head channel, the center well head channel top of layer shell
The opening in portion has sucker rod sealing mechanism, and the two sides of every layer of shell are respectively provided with shell side door, the shell side door it is outer
Frame is connect with the housing seal, and the well head channel two sides of every layer of enclosure interior have symmetrical left flashboard room and right flashboard
Room, and communicated respectively with the shell side door of two sides,
Respectively there are one and half envelope ram blocks, the half envelope ram blocks point in left flashboard room and right flashboard room in the layer shell
It is not connected with hydraulic drive mechanism, the hydraulic drive mechanism is symmetrically distributed in the two sides of layer shell, including piston/cylinder, work
Stopper rod, piston and piston end cap, the bottom of the piston/cylinder are connect with the shell side door, the top tool of the piston/cylinder
There is the piston end cap, the piston rod and piston are respectively positioned in the piston/cylinder, and one end of the piston rod passes through described
The center of the bottom of piston/cylinder and the shell side door is connect, described in other end connection with the ram blocks of the half envelope flashboard
Piston, the space between the piston and the top of the piston/cylinder are closing well oil pocket, the piston and the piston/cylinder
The space of bottom end be to drive a well oil pocket, the half envelope ram blocks can be driven by the hydraulic drive mechanism from the left flashboard room of two sides
And right flashboard room blocks the annular space between sucker rod and oil jacket to intermediary movements；
Respectively there is one piece of blind rams block, the blind rams block difference in the left flashboard room and right flashboard room of lower layer's shell
Manual drive mechanism is connected, the Manual drive mechanism is symmetrically distributed in the two sides of lower layer's shell, the blind rams block
The left flashboard room from two sides, right flashboard room can be driven to block flow string to intermediary movements by Manual drive mechanism.
2. a kind of hydraulic manual double ram type preventer according to claim 1, it is characterised in that the Manual drive mechanism
Including manual flange, hand lever, hand piston bar and union cap, the bottom end of the manual flange is connect with the shell side door,
Top connects the union cap, the hand piston bar and MLP Manual Lever Position in the manual flange, one end of hand piston bar
Across the bottom end of the manual flange and the center of the shell side door, connect with the blind rams block, the other end with it is described
One end of hand lever is fixedly connected, and the other end of the hand lever stretches out the top of the manual flange, passes through the union cap
It is fixed.
3. a kind of hydraulic manual double ram type preventer according to claim 1, it is characterised in that the hydraulic drive mechanism
With a pair of of retaining mechanism, it is located at the two sides of the hydraulic drive mechanism, including check lock lever and impeller, the piston end
Lid is the cylindrical body of hollow perforation, and bottom is connected to the piston/cylinder and is open less than the cross section of the piston, top
Opening has the impeller, and the check lock lever is located inside the piston end cap, one end of the check lock lever and the piston
It is fixedly connected, the other end can be pushed by the impeller.
4. a kind of hydraulic manual double ram type preventer according to claim 3, it is characterised in that the impeller is locking
Cap, the locking cap are connect with the inner thread at the top of the piston end cap.
5. a kind of hydraulic manual double ram type preventer according to claim 1, it is characterised in that the hydraulic drive mechanism
With a pair of of retaining mechanism, the retaining mechanism is located at the two sides of the hydraulic drive mechanism, including check lock lever, manual drawing article
And impeller, the manual drawing article are the manual nut with bottom plate, outer wall is connect with the inner thread of the piston end cap,
The bottom of the bottom plate from the manual nut side wall extends internally and center has through-hole, and one end of the check lock lever passes through institute
It states through-hole and protrudes into the piston end cap and connect with the end thread for the piston rod for stretching out in the piston, the other end is in the nut
Interior and have flange, the diameter of the flange is greater than the diameter of the through-hole, the top of the impeller and the manual drawing article
The opening in portion is slided or is threadedly coupled, and the impeller can push the check lock lever.
6. a kind of hydraulic manual double ram type preventer according to claim 5, it is characterised in that the impeller is locking
Cap, the locking cap are connect with the inner thread at the top of the manual drawing article.
7. a kind of hydraulic manual double ram type preventer according to claim 4 or 6, it is characterised in that the retaining mechanism packet
Box spanner is included, the box spanner includes sleeve and spanner, and the sleeve covers on the locking cap.
8. hydraulic manual double ram type preventer according to claim 1, it is characterised in that the sucker rod sealing mechanism packet
Packing, packing pressure cap, union cap and back of the body cap are included, the packing is wrapped in the open-topped sucker rod for stretching out in the shell
On, the packing pressure cap is connect with the open-top screw thread of the case top, is enclosed in the bottom and side of the packing, it is described by
For nonyl cap sleeve on the packing pressure cap, the back of the body cap is located at the outside of the union cap, is connected and fixed with the union cap thread
The union cap.
9. hydraulic manual double ram type preventer according to claim 1, it is characterised in that there is top sealing in each flashboard room,
For arc elastic body, it is affixed on the roof of the flashboard room on one side, another side is close to the half envelope ram blocks and blind rams block.
10. hydraulic manual double ram type preventer according to claim 1, it is characterised in that the hydraulic drive mechanism includes
Liquid controling pipe line, the liquid controling pipe line include drive a well oil pocket petroleum pipeline and closing well oil pocket petroleum pipeline, the oil pocket oil transportation that drives a well
Pipeline is respectively communicated with drive a well oil pocket and the fuel tank, and the closing well oil pocket petroleum pipeline is respectively communicated with the closing well oil pocket and oil
Case.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921129569.2U CN209568991U (en) | 2019-07-18 | 2019-07-18 | A kind of hydraulic manual double ram type preventer |
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| CN201921129569.2U CN209568991U (en) | 2019-07-18 | 2019-07-18 | A kind of hydraulic manual double ram type preventer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636844A (en) * | 2020-06-18 | 2020-09-08 | 海塔石油科技有限公司 | Pressure rotary pumping blowout preventer |
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2019
- 2019-07-18 CN CN201921129569.2U patent/CN209568991U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636844A (en) * | 2020-06-18 | 2020-09-08 | 海塔石油科技有限公司 | Pressure rotary pumping blowout preventer |
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