Steel wire clamping device for blowout preventer and blowout preventer
By designing a wire clamping device for blowout preventers, including multi-porous clamping holes and adjustment components, the problem of difficulty in adapting to different diameter wires in the prior art is solved, and effective clamping and stability of different diameter wires are achieved.
Patent Information
- Application Number
- CN202421051302.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The prior art is difficult to adapt to steel wires of different diameters, resulting in the application scope of the wire clamping device being too small and it is impossible to effectively clamp steel wires of different diameters.
A wire clamping device for blowout preventers is designed, including a connecting piece, an adjustment assembly and a clamping piece. The clamping member has a number of clamping holes of different apertures, and by adjusting the clamping force of the assembly, the steel wire passing through the clamping hole can be tightly clamped.
The clamping of steel wires of different diameters is achieved, the application scope of the wire clamping device is expanded, and the risk of steel wire slippage can be effectively avoided.
Smart Images
Figure CN222633199U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil and gas field development, in particular to a wire clamping groove device for a blowout preventer and a blowout preventer. Background Art
[0002] During the testing process, a blowout preventer is installed at the wellhead of the oil and gas well. Sometimes a steel wire is passed through the blowout preventer and the tool string is suspended by the steel wire so that the tool string can perform the testing work in the oil and gas well. However, when the tool string is heavy, it is difficult for the blowout preventer to clamp the steel wire well, and there is a risk of the steel wire and the tool string slipping.
[0003] In order to prevent the steel wire from sliding down, patent CN216588530U provides a blowout preventer sealing structure and a blowout preventer, which includes a main body and a clamping member embedded in the main body. When in use, the steel wire is clamped by the clamping members of the two main bodies to prevent the steel wire from falling down.
[0004] However, it is only applicable to steel wires of a single diameter. When installing steel wires of different diameters in the blowout preventer, the blowout preventer sealing structure used to clamp the steel wire needs to be replaced. The application range of the current steel wire clamping device is too small. Utility Model Content
[0005] The utility model provides a steel wire clamping device for a blowout preventer and a blowout preventer, which can clamp steel wires with different diameters and have a wider application range.
[0006] In a first aspect, the utility model provides a wire clamping device for a blowout preventer, comprising: a connecting piece for connecting to the blowout preventer; an adjusting assembly mounted on the connecting piece; and a clamping piece movably mounted on the adjusting assembly, the clamping piece having a plurality of clamping holes arranged in parallel and having different apertures, the clamping holes being used for allowing the wire to pass through; wherein the adjusting assembly can clamp the clamping piece along the radial direction of the clamping hole to radially compress the hole wall of the clamping hole.
[0007] In one embodiment, the adjustment assembly includes a first clamping plate and a second clamping plate, and the clamping member is clamped between the first clamping plate and the second clamping plate, wherein the distance between the first clamping plate and the second clamping plate is adjustable.
[0008] In one embodiment, the adjustment assembly further includes an adjustment bolt, which passes through the first clamping plate and then is inserted into the second clamping plate. The distance between the first clamping plate and the second clamping plate can be adjusted by screwing the adjustment bolt.
[0009] In one embodiment, at least one of the first clamping plate and the second clamping plate has a recessed portion, and the first clamping plate and the second clamping plate form a first clamping groove at the recessed portion, the clamping piece is installed in the first clamping groove, the thickness adjustment range of the first clamping groove is the first thickness adjustment range, and the thickness of the clamping piece is between the maximum value and the minimum value of the first thickness adjustment range.
[0010] In one embodiment, the length of the clamping member is smaller than the length of the first clamping groove, the length direction of the first clamping groove is perpendicular to the axis of the clamping hole, and the clamping member is configured so that when the thickness of the first clamping groove is greater than the thickness of the clamping member, the clamping member can slide along the length direction of the first clamping groove.
[0011] In one embodiment, the clamping member is made of brass at least at the hole wall of the clamping hole.
[0012] In one embodiment, the connecting member includes a cylindrical positioning portion, which is used to be sleeved outside the blowout preventer, and the inner diameter of the cylindrical positioning portion is equal to the outer diameter of the blowout preventer.
[0013] In one embodiment, the clamping member can move relative to the adjustment assembly along the radial direction of the cylindrical positioning portion, and the axial extension direction of the clamping hole is the same as the axial extension direction of the cylindrical positioning portion.
[0014] In one embodiment, at least one of the connecting member and the adjusting assembly is provided with a lifting structure, and the lifting structure is used for being lifted by a lifting device.
[0015] In a second aspect, an embodiment of the utility model further provides a blowout preventer, which includes: a blowout preventer; and the above-mentioned wire clamping device, wherein a connecting piece of the wire clamping device is connected to the blowout preventer.
[0016] Compared with the prior art, the advantage of the utility model is that, since the clamping member has clamping holes of various diameters, the clamping member can be adjusted to the specific position of the clamping member on the adjusting assembly during use, thereby adjusting the clamping hole corresponding to the diameter of the steel wire to the steel wire, so that the steel wire in the blowout preventer can pass through the clamping hole of the corresponding diameter. And by clamping the clamping member by the adjusting assembly, the wall of the clamping hole can be radially compressed, and the steel wire passing through the clamping hole can be tightly clamped. In other words, a steel wire clamping device can be used to adapt to steel wires of different diameters, which can be applied to steel wire clamping in more scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0018] Figure 1 is a schematic cross-sectional structural diagram of a wire clamping device in an embodiment of the utility model in a top view;
[0019] Figure 2It is a schematic cross-sectional structure diagram of the wire clamping device in the embodiment of the utility model under the main viewing angle.
[0020] Reference numerals:
[0021] 1. Connecting piece; 11. Cylindrical positioning part;
[0022] 2. Adjustment assembly; 21. First clamping plate; 22. Second clamping plate; 23. Adjustment bolt; 24. First clamping groove; 25. Lifting structure;
[0023] 3. Clamping piece; 31. First clamping block; 32. Second clamping block; 33. Clamping hole. DETAILED DESCRIPTION
[0024] The utility model will be further described below in conjunction with the accompanying drawings.
[0025] like Figure 1 As shown, an embodiment of the utility model provides a wire clamping device for a blowout preventer, and the wire clamping device comprises: a connecting member 1, an adjusting assembly 2 and a clamping member 3.
[0026] When in use, the connector 1 is connected to the blowout preventer, and the clamping member 3 is movably mounted on the adjusting assembly 2. The clamping member 3 has clamping holes 33 of various apertures, and the position of the clamping member 3 on the adjusting assembly 2 can be adjusted according to the diameter of the steel wire used in the blowout preventer, so that the steel wire in the blowout preventer can pass through the clamping hole 33 of the corresponding aperture on the clamping member 3.
[0027] Then, the clamping member 3 is clamped by the adjusting assembly 2 installed on the connecting member 1 , and radial compression of the wall of the clamping hole 33 is achieved under the clamping force of the adjusting assembly 2 , thereby ensuring the clamping effect of the steel wire in the clamping hole 33 .
[0028] Since the clamping member 3 has a plurality of clamping holes 33 with different apertures, it can be adapted to steel wires of various specifications. In addition, the clamping member 3 can be movable on the adjustment assembly 2, and the position of the clamping member 3 can be adjusted to facilitate alignment of the clamping hole 33 with the steel wire hole of the blowout preventer, so that the steel wire can be vertically inserted into the corresponding clamping hole 33.
[0029] like Figure 1 In this embodiment, the clamping member 3 has three clamping holes 33, and the apertures of the three clamping holes 33 are 2.2 mm, 3.2 mm, and 5.6 mm, respectively. In other implementations, the number of the clamping holes 33 on the clamping member 3 can be appropriately adjusted according to the type of steel wire adapted to the blowout preventer, and the aperture size of the clamping holes 33 on the clamping member 3 can also be adjusted according to the diameter of the steel wire to be clamped.
[0030] In some implementations, the adjustment assembly 2 includes a first clamping plate 21 and a second clamping plate 22, and the clamping member 3 is located between the first clamping plate 21 and the second clamping plate 22. The distance between the first clamping plate 21 and the second clamping plate 22 is adjustable. By adjusting the distance between the first clamping plate 21 and the second clamping plate 22, the clamping force on the clamping member 3 can be adjusted. Before the clamping member 3 clamps the steel wire, the distance between the first clamping plate 21 and the second clamping plate 22 can be increased, and the clamping hole 33 restores its original aperture so that the steel wire can be inserted into the clamping hole 33. After the steel wire is inserted into the clamping hole 33, the distance between the first clamping plate 21 and the second clamping plate 22 is reduced, and the clamping member 3 can be radially compressed, so that the clamping member 3 compresses the hole wall of the clamping hole 33 along the radial direction of the clamping hole 33, and the hole wall fits tightly to the steel wire.
[0031] In other implementations, the adjustment assembly 2 may use other structures to achieve compression of the clamping member 3 , such as using a hydraulic cylinder installed on the connecting member 1 to achieve pressing of the clamping member 3 .
[0032] In order to achieve the adjustable spacing between the first clamping plate 21 and the second clamping plate 22, as shown in FIG. Figure 1 As shown, in some implementations, the adjustment assembly 2 further includes an adjustment bolt 23, which passes through the first clamping plate 21 and is inserted into the first clamping plate 21. The distance between the first clamping plate 21 and the second clamping plate 22 can be adjusted by screwing the adjustment bolt 23. The adjustment bolt 23 can be threadedly connected with the second clamping plate 22, so that when the adjustment screw is screwed, the second clamping plate 22 moves along the axis of the adjustment bolt 23. In some implementations, a nut can also be threadedly connected to one end of the adjustment bolt 23 extending out of the second clamping plate 22. The first clamping plate 21 and the second clamping plate 22 are located between the nut and the bolt head of the adjustment bolt 23. By screwing the nut, the distance between the nut and the bolt head of the adjustment bolt 23 can be adjusted, thereby adjusting the distance between the first clamping plate 21 and the second clamping plate 22.
[0033] like Figure 1 As shown, the adjustment assembly 2 includes at least two adjustment bolts 23 arranged in parallel to prevent the first clamping plate 21 and the second clamping plate 22 from tilting relative to each other due to different spacings between the two sides.
[0034] In another implementation, the first clamping plate 21 or the second clamping plate 22 can be linearly moved by a telescopic cylinder or a rack structure, thereby adjusting the distance between the first clamping plate 21 and the second clamping plate 22 .
[0035] like Figure 1As shown, in some implementations, at least one of the first clamping plate 21 and the second clamping plate 22 has a recessed portion, and the first clamping plate 21 and the second clamping plate 22 form a first clamping groove 24 at the recessed portion. Compared with placing the clamping member 3 between the long strip grooves formed by the two flat plate-like structures, placing the clamping member 3 in the first clamping groove 24 at the recessed portion can limit the clamping member 3 by using the side wall of the recessed portion.
[0036] like Figure 1 As shown, both the first clamping plate 21 and the second clamping plate 22 are provided with a recessed portion, and the first clamping groove 24 formed by the first clamping plate 21 and the second clamping plate 22 has at least four limiting side walls to limit the front, back, left, and right positions of the clamping member 3. The movable range of the clamping member 3 can be limited by the recessed portion, thereby reducing the difficulty of adjusting the clamping member 3. In some implementations, the recessed portion can also form upper and lower side walls to limit the upward or downward movement of the adjusting member.
[0037] The thickness adjustment range of the first clamping groove 24 is the first thickness adjustment range, and the thickness of the clamping member 3 is between the maximum value and the minimum value of the first thickness adjustment range. That is, by adjusting the spacing between the first clamping plate 21 and the second clamping plate 22, the thickness of the first clamping groove 24 can be adjusted, thereby achieving the clamping of the clamping member 3. When the thickness of the first clamping groove 24 is less than the thickness of the clamping member 3, the first clamping plate 21 and the second clamping plate 22 squeeze the clamping member 3 from the opposite sides of the clamping member 3 to achieve compression of the clamping member 3. When the thickness of the first clamping groove 24 is greater than the thickness of the clamping member 3, the clamping member 3 is separated from at least one of the first clamping plate 21 and the second clamping plate 22, so as to facilitate the movement of the clamping member 3 in the first clamping groove 24. In some implementations, the second clamping plate 22 is detachably connected to the first clamping plate 21, and the second clamping plate 22 can be removed to facilitate the installation of the clamping member 3 in the first clamping groove 24.
[0038] Preferably, Figure 1 As shown, the length of the clamping member 3 is smaller than the length of the first clamping groove 24, the length direction of the first clamping groove 24 is perpendicular to the axis of the clamping hole 33, and the clamping member 3 is configured so that when the thickness of the first clamping groove 24 is greater than the thickness of the clamping member 3, the clamping member 3 can slide along the length direction of the first clamping groove 24.
[0039] By sliding the clamping member 3 along the length direction of the first clamping groove 24, the position of each clamping hole 33 on the clamping member 3 can be adjusted so that the clamping hole 33 matching the diameter of the steel wire is aligned with the steel wire.
[0040] Among them, in order to achieve compression and rebound of the hole wall of the clamping hole 33, it is preferred that the hole wall of the clamping hole 33 of the clamping member 3 is made of brass. Brass has good resilience. The hole wall of the clamping hole 33 made of brass can not only shrink when subjected to radial pressure to achieve clamping of the steel wire in the clamping hole, but also after the radial pressure disappears, the resilience of the brass itself can drive the hole wall of the clamping hole 33 to recover, so that the steel wire can be moved out of the clamping hole 33. Moreover, brass has good ductility and can fit the steel wire tightly during the process of clamping the steel wire, and has strong friction. Of course, not only the hole wall can be made of brass, but also the entire clamping member 3 can be made of brass material. In addition, the texture of brass is relatively soft. When the hole wall made of brass clamps the steel wire, since the hardness of brass is lower than that of the steel wire (generally carbon steel), the brass hole wall will not damage the steel wire.
[0041] In other implementations, the clamping member 3 may also be made of rubber with a high friction coefficient.
[0042] like Figure 1 As shown, in some implementations, the clamping member 3 includes a first clamping block 31 and a second clamping block 32. A plurality of half-hole structures with different apertures are provided on one side wall of the first clamping block 31, and a corresponding half-hole structure is provided on the side wall of the second clamping block 32. When the side wall of the first clamping block 31 fits with the side wall of the second clamping block 32, the half-hole structure of the first clamping block 31 and the half-hole structure of the second clamping block 32 enclose the clamping hole 33 mentioned above. By adopting a clamping member 3 with a split structure, the first clamping block 31 and the second clamping block 32 can be separated before clamping the steel wire, so as to facilitate the insertion of the steel wire into the clamping hole 33.
[0043] In another implementation, a clamping member 3 of an integrated structure may also be used. By using a material with a large elastic coefficient (such as rubber or elastic steel) to make the clamping member 3, when the clamping member 3 is not compressed by the adjustment component 2, the hole wall of the clamping member 3 recovers under the action of its own elastic force, so that the steel wire can pass through the clamping hole 33. When the clamping member 3 is compressed by the adjustment component 2, the clamping member 3 is compressed, and the hole wall of the clamping hole 33 is in close contact with the steel wire.
[0044] like Figure 1 and Figure 2 As shown, in some implementations, the connector 1 includes a cylindrical positioning portion 11, which is used to be sleeved outside the blowout preventer, and the inner diameter of the cylindrical positioning portion 11 is equal to the outer diameter of the blowout preventer. When in use, the cylindrical positioning portion 11 is sleeved outside the blowout preventer. Since the inner diameter of the cylindrical positioning portion 11 is equal to the outer diameter of the blowout preventer, the cylindrical positioning portion 11 can be used to position the wire clamping device. The central axis of the connector 1 is aligned with the central axis of the blowout preventer.
[0045] like Figure 1As shown, preferably, the clamping member 3 can move relative to the adjustment assembly 2 along the radial direction of the cylindrical positioning portion 11, and the axis extension direction of the clamping hole 33 is the same as the axis extension direction of the cylindrical positioning portion 11. Preferably, the axis of each clamping hole 33 intersects with the same diameter of the cylindrical positioning portion 11, and the clamping member can slide along the radial direction of the cylindrical positioning portion 11. When it is necessary to clamp the steel wire, the clamping member 3 can be first slid along the radial direction of the cylindrical positioning portion 11, so that the corresponding clamping hole 33 is moved to the axis of the cylindrical positioning portion 11, so that the steel wire passing through the center of the blowout preventer is inserted into the clamping hole 33. By controlling the arrangement position of the clamping hole 33 and the sliding direction of the clamping member 3, when adjusting the clamping member 3, it is only necessary to slide along the radial direction of the cylindrical positioning portion 11. Compared with adjusting the position of the clamping member 3 in multiple directions, the adjustment process is simpler.
[0046] In some implementations, at least one of the connector 1 and the adjustment assembly 2 is provided with a lifting structure 25, and the lifting structure 25 is used for lifting by a lifting device. Figure 1 As shown, in this implementation, the lifting structure 25 is a lifting hole. In other implementations, the lifting structure 25 can also adopt a hook structure or a hanging ear structure. In some embodiments, the length of the first clamp 21 is greater than the diameter of the blowout preventer, and horizontally extending lifting holes are provided on both sides of the first clamp, the two lifting holes are symmetrical along the axis of the cylindrical positioning portion 11, and the spacing between the two lifting holes is greater than the diameter of the blowout preventer. For example, the length of the first clamp 21 is set to 420mm and the width is 40mm. And the length of the second clamp 22 is set to 210mm and the width is 40mm. The lengths of the first clamp 21 and the second clamp 22 are both set to 2mm. In other implementations, the first clamp 21 and the second clamp 22 can also be set to the same length, and the specific sizes of the first clamp 21 and the second clamp 22 can be adjusted according to actual conditions.
[0047] When the adjusting assembly 2 needs to be lifted, the two lifting holes on the first clamping plate 21 can be connected to the lifting equipment to lift the adjusting assembly 2, the connecting member 1, the clamping member 3 and the steel wire clamped in the clamping hole 33.
[0048] Since the present embodiment is provided with a hoisting structure 25 specifically used for connecting with the hoisting equipment, it is not necessary to directly hook the steel wire during the process of hoisting the steel wire, thereby reducing the difficulty of connecting the hoisting equipment.
[0049] Preferably, there are multiple hoisting structures 25, and the hoisting structures 25 are evenly arranged around the axis of the cylindrical positioning portion 11, so that the hoisting center coincides with the axis of the cylindrical positioning portion 11 during hoisting.
[0050] Figure 1In the embodiment shown in FIG. 1 , the lifting structure 25 is disposed on the first clamping plate 21 of the adjusting assembly 2 . In other embodiments, the lifting structure 25 may be disposed only on the connecting member 1 . Alternatively, the lifting structure 25 may be disposed on both the connecting member 1 and the adjusting assembly 2 .
[0051] On the other hand, the embodiment of the utility model further provides a blowout preventer, which includes a blowout preventer and any one of the wire clamping devices in the above-mentioned embodiments, wherein the connecting member 1 of the wire clamping device is connected to the blowout preventer. By connecting the wire clamping device to the blowout preventer, the clamping member 3 on the wire clamping device can be used to clamp the wire in the blowout preventer. When replacing the wire in the blowout preventer, the clamping member 3 can be moved to match the appropriate clamping hole 33 on the clamping member 3 with the wire to achieve clamping of wires of different diameters.
[0052] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A wire clamping device for a blowout preventer, characterized in that: It includes: A connector for connecting to a blowout preventer; an adjustment assembly mounted on the connecting member; as well as A clamping member, which is movably mounted on the adjusting assembly, wherein the clamping member has a plurality of clamping holes arranged in parallel and having different apertures, and the clamping holes are used for steel wires to pass through; Wherein, the adjustment assembly can clamp the clamping member along the radial direction of the clamping hole to radially compress the hole wall of the clamping hole.
2. The wire clamping device according to claim 1, characterized in that: The adjustment assembly includes a first clamping plate and a second clamping plate, and the clamping member is clamped between the first clamping plate and the second clamping plate, wherein the distance between the first clamping plate and the second clamping plate is adjustable.
3. The wire clamping device according to claim 2, characterized in that: The adjustment assembly further includes an adjustment bolt, which passes through the first clamping plate and then is inserted into the second clamping plate. The distance between the first clamping plate and the second clamping plate can be adjusted by screwing the adjustment bolt.
4. The wire clamping device according to claim 2, characterized in that: At least one of the first clamping plate and the second clamping plate has a recessed portion, and the first clamping plate and the second clamping plate form a first clamping groove at the recessed portion, the clamping piece is installed in the first clamping groove, the thickness adjustment range of the first clamping groove is the first thickness adjustment range, and the thickness of the clamping piece is between the maximum value and the minimum value of the first thickness adjustment range.
5. The wire clamping device according to claim 4, characterized in that: The length of the clamping member is smaller than the length of the first clamping groove, the length direction of the first clamping groove is perpendicular to the axis of the clamping hole, and the clamping member is configured so that when the thickness of the first clamping groove is greater than the thickness of the clamping member, the clamping member can slide along the length direction of the first clamping groove.
6. The wire clamping device according to claim 1, characterized in that: The clamping member is made of brass at least at the hole wall of the clamping hole.
7. The wire clamping device according to claim 1, characterized in that: The connecting piece comprises a cylindrical positioning portion, which is used to be sleeved outside the blowout preventer, and the inner diameter of the cylindrical positioning portion is equal to the outer diameter of the blowout preventer.
8. The wire clamping device according to claim 7, characterized in that: The clamping member can move relative to the adjusting assembly along the radial direction of the cylindrical positioning portion, and the axial extension direction of the clamping hole is in the same direction as the axial extension direction of the cylindrical positioning portion.
9. The wire clamping device according to claim 1, characterized in that: At least one of the connecting member and the adjusting assembly is provided with a hoisting structure, and the hoisting structure is used for being hoisted by a hoisting device.
10. A blowout prevention device, characterized in that: It includes: BOP; as well as The wire clamping device according to any one of claims 1 to 9, wherein the connecting piece of the wire clamping device is connected to the blowout preventer.