CN214997557U - Gate blowout preventer shut-in hand wheel - Google Patents

Gate blowout preventer shut-in hand wheel Download PDF

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Publication number
CN214997557U
CN214997557U CN202022878690.4U CN202022878690U CN214997557U CN 214997557 U CN214997557 U CN 214997557U CN 202022878690 U CN202022878690 U CN 202022878690U CN 214997557 U CN214997557 U CN 214997557U
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China
Prior art keywords
hub
well
rim
hand wheel
blowout preventer
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Active
Application number
CN202022878690.4U
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Chinese (zh)
Inventor
杨文冉
李玉民
韩儒
王鹏翀
刘淑芬
田章随
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Oilfield Service Corp
Sinopec Zhongyuan Petroleum Engineering Co Ltd
Pipe Co of Sinopec Zhongyuan Petroleum Engineering Co Ltd
Original Assignee
Sinopec Oilfield Service Corp
Sinopec Zhongyuan Petroleum Engineering Co Ltd
Pipe Co of Sinopec Zhongyuan Petroleum Engineering Co Ltd
Priority date (The priority date 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 date listed.)
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Application filed by Sinopec Oilfield Service Corp, Sinopec Zhongyuan Petroleum Engineering Co Ltd, Pipe Co of Sinopec Zhongyuan Petroleum Engineering Co Ltd filed Critical Sinopec Oilfield Service Corp
Priority to CN202022878690.4U priority Critical patent/CN214997557U/en
Application granted granted Critical
Publication of CN214997557U publication Critical patent/CN214997557U/en
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Abstract

The utility model provides a flashboard preventer hand wheel of shutting in well. The side edge of the hub is provided with a stress application rod jack for inserting a stress application rod; the rim is mounted to the hub by a plurality of spokes projecting therefrom. The force applying rod insertion holes are formed in the side edges of the wheel hub, so that the force applying rod can be inserted when the wheel rim rotates to close the well, and the force applying rod can assist the wheel rim to rotate, so that the problem that the well cannot be closed manually due to the fact that the wheel diameter is too small and the torque is insufficient in the prior art is solved; and the diameter of the wheel rim is increased, the diameter of the wheel rim is larger than the distance between two well closing screw rods of the existing double-gate blowout preventer, the wheel rim is installed on the wheel hub through a plurality of spokes in a protruding mode, and then the torque of the wheel rim during rotation is increased, so that the problem that the torque caused by the undersize of the diameter of the wheel rim in the prior art is insufficient, and the well cannot be manually closed is solved.

Description

Gate blowout preventer shut-in hand wheel
Technical Field
The utility model relates to an oil and gas well drilling well accuse equips the field, specifically is a flashboard preventer shut-in hand wheel.
Background
In the process of petroleum and natural gas drilling, when dangerous situations such as overflow, well kick and the like occur, a wellhead is closed by using a blowout preventer group installed on the wellhead, and then the dangerous situations are treated by throttling blowout and circulating, exhausting and killing a well through a drilling four-way, a throttling manifold, a blowout pipeline, a liquid-gas separator and other pipelines.
The ram blowout preventer consists of an annular blowout preventer and a group of ram blowout preventers, and on the basis of hydraulic shut-in, a manual shut-in and locking mechanism is further designed, so that even if hydraulic pressure is lost, a hand wheel can be manually rotated to shut-in, and effective shut-in can be kept for a long time after locking, so that the ram blowout preventer is a necessary blowout preventer type for shutting in a well.
However, when the pressure of a wellhead is high or a drilling tool needs to be sheared to shut down a well, the ram blowout preventer in the prior art has the disadvantages that the force application torque is insufficient, the height difference of spokes is small, the interval angle is large, the manual closing of the well cannot be realized finally, and the potential safety hazard of well control is large, and the force application is inconvenient to hold and laterally pull and lift.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a ram preventer hand wheel of shutting in to solve among the prior art when ram preventer is higher at well head pressure or need to cut the drilling tool shut in, can't realize manually shutting in through current hand wheel.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a ram blowout preventer shut-in hand wheel, comprising: a rim, spokes and hub;
the side edge of the hub is provided with a stress application rod insertion hole for inserting a stress application rod;
the rim is mounted to the hub by a plurality of the spokes.
Preferably, the number of the stress application rod insertion holes is multiple.
Preferably, a plurality of the stress application rod insertion holes are uniformly distributed along the circumferential direction of the hub.
Preferably, a plurality of the stress application rod insertion holes are all dislocation holes.
Preferably, the rim is welded to one end of the plurality of spokes, and the other end of the plurality of spokes is welded to the hub.
Preferably, the wheel rim and/or the wheel spoke are formed by bending a hollow seamless thin-wall steel pipe.
Preferably, a square hole is formed in the axial direction of the hub, and the square hole is used for being matched with an outer square column of the conversion square head.
Preferably, the square hole is a square hole with ears.
Preferably, the square hole is matched with the square hole.
Preferably, the method further comprises the following steps: closing the well and indicating the rotating direction;
the well closing rotation direction indicator is welded between the two spokes.
Based on the aforesaid the embodiment of the utility model provides a ram-type preventer hand wheel of shutting in well. A stress application rod insertion hole for inserting the stress application rod is formed in the side edge of the hub; the rim is mounted to the hub by a plurality of the spokes. The force applying rod insertion holes are formed in the side edges of the wheel hub, so that the force applying rod can be inserted when the wheel rim rotates to close the well, and the force applying rod can assist the wheel rim to rotate, so that the problem that the well cannot be closed manually due to the fact that the wheel diameter is too small and the torque is insufficient in the prior art is solved; and increasing the diameter of the wheel rim, so that the diameter of the wheel rim is larger than the distance between two well closing screw rods of the existing double-ram blowout preventer, and the wheel rim is installed on the wheel hub through a plurality of spokes in a protruding manner, so that the torque of the wheel rim during rotation is increased, and the problem that the well cannot be closed manually due to insufficient torque caused by the fact that the diameter of the wheel rim is too small in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a front view of a closing hand wheel of a ram blowout preventer according to an embodiment of the present invention;
fig. 2 is a top view of a closing hand wheel of a ram blowout preventer according to an embodiment of the present invention;
fig. 3 is a front view of a square hole provided in an embodiment of the present invention;
fig. 4 is a cross-sectional view of a square hole provided in an embodiment of the present invention;
fig. 5 is a front view of a jack of a force application rod provided in an embodiment of the present invention;
fig. 6 is a side view of a jack of a force application rod provided in an embodiment of the present invention;
fig. 7 is a diagram illustrating a state of opening a well by a closing hand wheel of the ram blowout preventer according to an embodiment of the present invention;
fig. 8 is a shut-in state diagram of a shut-in hand wheel of the ram blowout preventer according to an embodiment of the present invention.
The device comprises a wheel rim 1, a spoke 2, a wheel hub 3, a square hole 31, a conversion square head 4, a rotary fixing rib plate 5, a one-way well closing rotary direction indicator 6 and a force application rod jack 7.
Detailed Description
The utility model relates to a major diameter hand wheel. The rim of the wheel is protruded out of the hub, and both the rim and the spoke are formed by bending thin-wall hollow seamless tubes; the hub center is provided with a large square mounting hole, a conversion square head is matched with the large square mounting hole, and four reinforcing rod jacks which are not in the same section are designed. The utility model discloses hand wheel perpendicular to ground installation is exclusively used in the manual well operation of closing of oil and gas drilling flashboard preventer, and it can enough ensure effective manual shut-off and lock contain the high-pressure flashboard preventer including shear function, accords with the human engineering design again, makes the completion that operating personnel can make things convenient for, the quick application of force close well-locking operation, and this hand wheel is used when double-gate board preventer, does not receive upper and lower flashboard shut-in-hole-locking lead screw centre-to-centre spacing influence, can relax, change the use fast. The novel steel wire rope is simple in manufacturing process, low in cost, small in weight and convenient to repair and manufacture on site after being damaged.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a flashboard preventer hand wheel of shutting in well, refer to fig. 1 to fig. 3, fig. 1 is the utility model discloses flashboard preventer hand wheel of shutting in well structure sketch map, flashboard preventer hand wheel of shutting in well includes: rim 1, spokes 2 and hub 3;
a stress application rod jack 7 for inserting a stress application rod is formed in the side edge of the hub 3;
the rim 1 is mounted projecting from the hub 3 by a plurality of spokes 2.
It should be noted that, the utility model discloses a 1 diameter of rim is for being greater than two well screw intervals of closing of current double-disc preventer, if adopt conventional flat type, rim 1 promptly with wheel hub 3's one end is in the coplanar, then when closing the well through 1 rotatory one of them well screw of rim, another well screw of closing then can become the obstacle when the rim rotates, consequently, the utility model discloses a rim 1 is through a plurality of 2 protrusions of spoke install in wheel hub 3, when rotatory one of them well screw through the rim, ensure that another well screw of closing can not influence rim rotation operation like this.
Still need to explain, through offering the helping hand pole jack 7 that is used for inserting the helping hand pole at wheel hub 3 side, through inserting the helping hand pole at the helping hand pole jack 7, under the prerequisite of guaranteeing to last the application of force, can the rotatory shut-in well that carries out of helping hand rim 1.
The utility model has a force-applying rod jack for inserting the force-applying rod at the side of the wheel hub; the rim is mounted to the hub by a plurality of the spokes. The force applying rod insertion holes are formed in the side edges of the wheel hub, so that the force applying rod can be inserted when the wheel rim rotates to close the well, and the force applying rod can assist the wheel rim to rotate, so that the problem that the well cannot be closed manually due to the fact that the wheel diameter is too small and the torque is insufficient in the prior art is solved; and increasing the diameter of the wheel rim, so that the diameter of the wheel rim is larger than the distance between two well closing screw rods of the existing double-ram blowout preventer, and the wheel rim is installed on the wheel hub through a plurality of spokes in a protruding manner, so that the torque of the wheel rim during rotation is increased, and the problem that the well cannot be closed manually due to insufficient torque caused by the fact that the diameter of the wheel rim is too small in the prior art is solved.
Further, the number of the stress application rod insertion holes 7 is multiple.
It should be noted that, the number of the stress application rod insertion holes 7 is set to be plural, so that the stress application rods can be inserted in different directions, and the stress application rods can apply force when the rim 1 rotates, so that workers can rotate the rim 1 to close the well conveniently.
Specifically, a plurality of the stress application rod insertion holes 7 are uniformly distributed along the circumferential direction of the hub 3.
Preferably, the number of the stress beam insertion holes 7 is 4, and the angle between the 4 stress beam insertion holes 7 is 90 °.
And a plurality of the stress application rod insertion holes 7 are all dislocation holes.
It should be noted that, by arranging the plurality of force applying rod insertion holes 7 in a staggered manner, two force applying rods with lengths longer than the radius of the wheel rim can be switched to assist the wheel rim 1 to close the well on the premise of ensuring continuous force application.
Further, the rim 1 is welded to one ends of the plurality of spokes 2, and the other ends of the plurality of spokes 2 are welded to the hub 3.
It should be noted that, the rim 1 is welded with one end of a plurality of spokes 2, and the other end of a plurality of spokes 2 is welded with the hub 3, so that the connection strength between the rim 1 and a plurality of spokes 2 and the connection strength between the plurality of spokes 2 and the hub 3 can be enhanced, and the phenomenon that the rim 1 is disconnected from the spokes 2 and/or the spokes are disconnected from the hub when the rim 1 is rotated to close the well is avoided, so that the rim 1 cannot be manually rotated to close the well.
Further, the wheel rim 1 and/or the wheel spoke 2 are formed by bending a hollow seamless thin-wall steel pipe.
It should be noted that, the wheel rim 1 is formed by bending a hollow seamless thin-wall steel tube, so that the weight of the wheel rim 1 can be reduced while the strength is ensured, the material cost is saved, and the wheel rim is also beneficial to the installation and the disassembly of workers.
It should be noted that, the spoke 2 is formed by bending a hollow seamless thin-wall steel tube, so that the weight of the rim 1 can be reduced while the strength is ensured, the material cost is saved, and the installation and the disassembly of workers are facilitated.
It should be noted that the rim 1 and/or the spokes 2 are not limited to being formed by bending hollow seamless thin-walled steel tubes, but may be formed by bending solid steel bars.
Further, a square hole 31 is formed in the axial direction of the hub 3, and the square hole 31 is used for being matched with an outer square column of the conversion square head 4.
It should be noted that, by forming the square hole 31 along the axial direction of the hub 3, the external square column insertion of the square head 4 can be conveniently converted.
Specifically, the square hole 31 is a square hole with ears.
The square hole 31 is a square hole with lugs, so that the conversion square head 4 can be prevented from being separated from the square hole 31 of the hub 3 in the process of assembling with the conversion square head 4 and using.
Further, the ram blowout preventer shut-in hand wheel further comprises a conversion square head 4 matched with the square hole 31.
It should be noted that by arranging the conversion square head 4, the square head can be assembled with the square head of the well closing screw rod for closing the well of another ram blowout preventer, so that the well closing screw rod for closing the well of another ram blowout preventer can be rotated to close the well.
Further, the ram blowout preventer shut-in hand wheel still includes: shut-in turn indication 6;
the shut-in turn indicator 6 is welded between the two spokes 2.
It should be noted that, by welding the well closing turning direction indication 6 between the two spokes 2, it is possible to prevent the complex accidents caused by the delay of the well closing time due to the turning direction error caused by mental stress after the well control events such as blowout, overflow and the like of the working personnel occur, and the well closing turning direction indication 6 is firm and reliable and is not easy to be deformed by collision and hanging through welding.
Preferably, the well closing rotation direction indicator 6 is a unidirectional rotation arrow.
It should be noted that, the closing direction indicator 6 is set as a unidirectional rotation arrow, so that the worker can directly rotate according to the direction of the unidirectional rotation arrow without thinking, thereby avoiding the worker from delaying the closing time due to thinking of the rotation direction, and avoiding accidents or becoming more complicated.
To facilitate understanding of the above solution, the solution is further described below.
The utility model provides a rim perpendicular to ground installation, the side is drawn and is lifted flashboard preventer shut-in hand wheel of application of force, can ensure that effective manual shut-in and locking contain the flashboard preventer including shear function, accord with the ergonomic design again, make operating personnel can make things convenient for, the flashboard preventer shut-in hand wheel of shut-in of quick application of force, and this flashboard preventer shut-in hand wheel is used when double-gate board preventer, do not receive upper and lower flashboard shut-in lead screw centre-to-centre spacing influence, and can relax, change the use fast.
The utility model discloses a 1 protrusion wheel hub 3 sides of rim, the structure contains rim 1 and spoke 2 that is formed by the curved system of the seamless thin wall steel pipe of cavity, and the center is the wheel hub 3 in square hole, and wheel hub 3 is supporting to have and takes ear conversion square head 4, and wheel hub 3 goes up the design has 4 application of force pole jacks 7.
Preferably, the mounting hole of the hub 3 is square, and in order to be suitable for mounting a well closing screw hand wheel of another ram blowout preventer well closing, a conversion square head with lugs is matched.
The matched conversion square head is in an outer square column shape, the inner hole is in an inner square shape, and the conversion square head is provided with two positioning lugs inserted into square holes of the wheel hub 3.
Preferably, the hub 3 is provided with 4 force application rod jacks 7, and the two force application rods 7 which are inserted into the wheel rim 3 in a staggered manner to apply force in a reversing manner when the force application of the pulling and lifting hand wheel is insufficient to close a high-pressure wellhead or shear drilling tool. In order to be switched conveniently, the 4 stress application rod jacks 7 are symmetrical pairwise and are arranged on different planes in a staggered non-crossed symmetrical mode.
Preferably, in order to prevent the complex accidents caused by delaying the well closing time due to the wrong turning direction and considering the weight of the well closing hand wheel of the ram blowout preventer, two symmetrical well closing mark fixing rib plates 5 made of thin steel plates are welded at the ends close to hubs in six triangular spaces formed between spokes. The well closing mark is a clockwise red unidirectional rotation arrow, and the well closing mark is riveted on the rib plate of the fixed rib plate.
Preferably, in order to distinguish the standard white color of the drilling derrick base from the red color of the blowout preventer, the overall color of the ram blowout preventer shut-in hand wheel is yellow, and the turning arrow is installed at the center near the hub and is red.
The core of the utility model is to provide a flashboard preventer hand wheel of shutting well, its diameter is big, light in weight, 1 protrusion in wheel hub 3 of rim, and the installation of perpendicular to ground is fit for the manual shut-in well of oil drilling well accuse flashboard preventer when having high well pressure or need shearing drilling tool and uses, and the specially adapted receives the two flashboard preventer that two shut-in well lead screw intervals influence each other.
The ram blowout preventer shut-in hand wheel comprises a wheel rim 1 which is formed by bending hollow seamless pipes with different diameters, a wheel hub 3 is in a metal cylinder shape and is provided with an inner square mounting hole which is matched with a ram blowout preventer shut-in screw rod in a large-size outer square manner, and the wheel hub is welded and connected with the wheel rim 1 through support ribs (spokes) which are formed by bending 6 hollow pipes.
It is important to note that the rim 1 projects from the hub 2. In order to meet the requirement of well closing moment when a wellhead is provided with a high-pressure or shearing drilling tool, the diameter of a wheel rim 1 is calculated and designed to be larger than 1m and larger than the distance between two well closing screw rods of all domestic double-ram blowout preventers, a conventional straight type is adopted, and when one hand wheel is installed and rotates, the other screw rod becomes an obstacle. The designed numerical value of the flange 1 protruding wheel hub 3 is calculated and designed according to the distance between two well closing screw rods of the existing domestic double-ram blowout preventer, and when the well closing hand wheel of the ram blowout preventer closes the ram corresponding to one well closing screw rod, the other well closing screw rod cannot influence the well closing rotation operation.
In order to reduce the weight of the shut-in hand wheel of the ram blowout preventer, the wheel rim 1 and the wheel spokes 2 are formed by bending hollow seamless steel pipes with different outer diameters, and the number of the wheel spokes is 6.
Preferably, the spoke spacing formed by the rim 1 and the 6 spokes 2 with the diameter larger than 1m is in accordance with the ergonomically recommended double-arm spacing when the rim is rotated by pulling down and lifting up force applied to the vertical ground installation side. The outer diameter of the steel tube for manufacturing the wheel rim 1 is the gripping outer diameter which is recommended by ergonomics when the side surface is pulled down and lifted up to apply force.
Further, the rim 1 can be rotated by a frontal twist or by a lateral pull-down, lift-up. In order to accord with ergonomics, when an operator grips the intersection of the spoke 2 and the hub 3 during upward lifting or downward pulling, the distance between the two arms is comfortable, the finger joint curvature is comfortable, the operator can better pull or upward apply force to ensure that manual well closing operation is smoothly and quickly completed, the outer diameter of a seamless pipe of the bent rim 1 is preferably phi 44.5, the number of the spokes 2 is preferably 6, a 60-degree inter-spoke angle is formed, and the distance between the spokes 2 at the rim 1 is 580470 mm.
Further, at present, there are two kinds of domestic ram preventer shut-in lead screw four directions, for can both kinds all be suitable for, square in 3 body lead screws of wheel hub are the jumbo size, for being applicable to another kind of less square, wheel hub 3 is supporting to have conversion square head 4, and conversion square head 4 outer four directions can insert the interior four directions of wheel hub 3, and conversion square head 4 interior four directions can insert little four directions shut-in lead screw. The conversion square head 4 is provided with a positioning square lug which can be embedded into the hub so as to prevent the conversion square head 4 from loosening or sliding out of the body of the hub 3 during assembly and use.
Further, in order to prevent that under the special operating mode, the moment of force that produces near rotatory rim 1 can't effectively manual shut-in well, rim 1 design has 4 application of force pole jacks 7, and 4 application of force pole jacks between the angle be 90, two liang of symmetries, but not on a plane, be the dislocation and punch, can use two length to be greater than the radial application of force pole of rim 1 like this, under the prerequisite of guaranteeing to last the application of force, switching position helping hand shut-in well.
Further, in order to reduce the weight of the shut-in hand wheel of the ram blowout preventer and simplify the manufacturing process, on the basis that the wheel rim 1 and the spokes 2 both use thin-walled seamless pipes, the unidirectional shut-in rotary direction indicator 6 is designed to be installed on a rotary fixing rib plate 5 made of thin steel plates, the rotary fixing rib plate 5 is welded between the two spokes 2 and close to the wheel hub 3, and the rotary fixing rib plate is small in size, small in distance and large in fulcrum welding area, so that the rotary shut-in hand wheel is firm and reliable and is not easy to be collided and hung to deform.
Furthermore, in order to prevent the complicated accidents caused by the fact that the turning direction is wrong due to mental stress after well control events such as blowout, overflow and the like occur to an operator, the turning direction of the hand wheel switch is delayed, the conventional method of marking the turning direction of the hand wheel switch by double arrows is abandoned, the unidirectional rotating arrow is riveted on the rotary fixing rib plate 5, and the operator can turn the well clockwise without thinking.
Furthermore, the color of the well closing hand wheel of the ram blowout preventer is designed to be yellow for warning, the arrow is red, the color is matched with the white standard color of the base of the drilling machine and the red standard color of well control equipment, and the purpose of distinguishing and striking is achieved compared with the red color used in the past.
The utility model discloses the more conventional casting of flashboard preventer shut-in hand wheel, machining or compound technology preparation hand wheel, simple process and low cost still are convenient for repair after the on-the-spot abnormal damage of well drilling.
The utility model discloses the design has two kinds of specifications to satisfy the use of domestic current model flashboard preventer, can be along with the development of new model flashboard preventer, on the basis of current design, improve and extend out new model, in order to satisfy in oil drilling well accuse needs.
The beneficial effects of the utility model are that when the well head has high pressure or will cut the drilling tool, can ensure that the on-the-spot manual shut-in well and the locking that smoothly realizes the flashboard preventer have especially solved the problem that the double-flashboard preventer closes the well screw lever and each other is the inconvenient operation of obstacle, further promoted the on-the-spot well control safety of oil drilling, and have light in weight, accord with human engineering, the advantage of the on-the-spot installation of being convenient for, operation and maintenance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A ram blowout preventer shut-in hand wheel, comprising: the wheel comprises a wheel rim (1), a spoke (2) and a hub (3);
a stress application rod insertion hole (7) for inserting a stress application rod is formed in the side edge of the hub (3);
the wheel rim (1) is installed on the wheel hub (3) through a plurality of the spokes (2) in a protruding mode.
2. The ram blowout preventer shut-in hand wheel according to claim 1, characterized in that the number of the booster jacks (7) is plural.
3. The ram blowout preventer shut-in hand wheel according to claim 1, characterized in that a plurality of the booster jacks (7) are evenly distributed along the circumference of the hub (3).
4. The ram blowout preventer shut-in hand wheel according to claim 3, characterized in that a plurality of the stress beam receptacles (7) are all offset holes.
5. The ram blowout preventer shut-in hand wheel according to claim 1, characterized in that the rim (1) is welded to one end of a plurality of spokes (2) and the other end of a plurality of spokes (2) is welded to the hub (3).
6. The ram blowout preventer shut-in hand wheel according to claim 1, characterized in that the rim (1) and/or the spokes (2) are bent from hollow seamless thin-walled steel tubing.
7. The ram blowout preventer shut-in hand wheel according to claim 1, characterized in that a square hole (31) is provided axially along the hub (3), the square hole (31) being adapted to cooperate with an outer square cylinder of a transition square head (4).
8. The ram blowout preventer shut-in hand wheel according to claim 7, characterized in that the square bore (31) is a lobed square bore.
9. The ram blowout preventer shut-in hand wheel according to claim 7, further comprising a transition square head (4) cooperating with the square bore (31).
10. The ram blowout preventer shut-in hand wheel of claim 1, further comprising: a shut-in rotation direction indicator (6);
the well closing rotating direction indicator (6) is welded between the two spokes (2).
CN202022878690.4U 2020-12-02 2020-12-02 Gate blowout preventer shut-in hand wheel Active CN214997557U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022878690.4U CN214997557U (en) 2020-12-02 2020-12-02 Gate blowout preventer shut-in hand wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022878690.4U CN214997557U (en) 2020-12-02 2020-12-02 Gate blowout preventer shut-in hand wheel

Publications (1)

Publication Number Publication Date
CN214997557U true CN214997557U (en) 2021-12-03

Family

ID=79139569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022878690.4U Active CN214997557U (en) 2020-12-02 2020-12-02 Gate blowout preventer shut-in hand wheel

Country Status (1)

Country Link
CN (1) CN214997557U (en)

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