Throttling type well killing manifold with lifting base

Abstract

The invention relates to the technical field of well killing manifolds, and discloses a throttling type well killing manifold with a lifting base, the throttling type well killing manifold comprises a well killing manifold body and the lifting base, the lifting base comprises a bottom plate, lifting columns and a lifting plate, the four lifting columns are connected to the four corners of the top end of the bottom plate respectively, lifting blocks are arranged on the lifting columns in a sliding mode, and the lifting plates are arranged on the lifting columns. The lifting plate is connected with the four lifting blocks at the same time, and the well killing manifold body is installed above the lifting plate. And the hovering unit is connected to the lifting block and used for locking the lifting block at any position within the preset range of the lifting column. The hovering unit is arranged on the lifting block, and the lifting block can be locked to any position within the lifting range, so that the lifting base can adjust the kill manifold body to any height, the kill manifold body can be quickly in butt joint with pipelines with different heights, and the kill manifold body is kept stable when being impacted by high-pressure fluid during working.

Description

Technical Field

[0001] The present invention relates to the technical field of well-killing manifold, and more particularly to a throttling well-killing manifold with a lifting base. Background Art

[0002] The well-killing manifold is a necessary equipment for controlling overflow and blowout and implementing oil and gas well pressure control technology. During the drilling process of oil and gas wells, the drilling fluid in the wellbore is contaminated by the formation fluid, which will destroy the balance between the static column pressure of the drilling fluid and the formation pressure, resulting in overflow and blowout. When it is necessary to circulate out the contaminated drilling fluid or pump in the drilling hydraulic well with adjusted performance to rebuild this balance relationship, but it cannot be circulated normally through the drill string, the drilling fluid with adjusted performance can be pumped into the well through the well-killing manifold to achieve the purpose of controlling the oil and gas well pressure. The well-killing manifold needs to be connected to the oil production pipeline when in use. The existing well-killing manifold is hoisted to align the well-killing manifold with the pipeline, which is difficult to install.

[0003] In the prior art, for example, the invention patent with application number CN202011219702.0 discloses a throttling type well-killing manifold with a lifting base, wherein a lifting seat is installed at the bottom of the well-killing manifold, a support seat is provided below the lifting seat, a plurality of limit mechanisms are provided between the support seat and the lifting seat, a mounting groove is provided at the bottom of the lifting seat, a connecting seat is installed in the mounting groove, the connecting seat and the mounting groove are connected by a clamping mechanism, two positioning blocks are fixedly connected to the support seat, and a first screw and a second screw are respectively installed on the two bearings. This device can quickly adjust the height of the well-killing manifold. However, in actual use, the well-killing manifold will vibrate when it is impacted by high-pressure fluid during operation. After the well-killing manifold is adjusted to a preset height, limit locking is required to ensure the stability of the well-killing manifold.

[0004] Therefore, it is necessary to provide a throttling type well-killing manifold with a lifting base to at least partially solve the problems existing in the prior art. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, the present invention provides a throttling well-killing manifold with a lifting base, comprising:

[0007] The well-killing manifold body and the lifting base, the lifting base includes:

[0008] Bottom plate, lifting column and lifting plate, four lifting columns are respectively connected to the four corner points at the top of the bottom plate, lifting blocks are slidably arranged on the lifting columns, the lifting plate is connected to the four lifting blocks at the same time, and the well-killing manifold body is installed above the lifting plate;

[0009] The suspension unit is connected to the lifting block and is used to lock the lifting block at any position within a preset range of the lifting column.

[0010] Preferably, a lifting slot is provided on one side of the lifting column close to the lifting plate, the lifting block is slidably connected in the lifting slot, a lead screw is rotatably connected in the lifting slot, the lead screw is vertically arranged and the bottom end of the lead screw is connected to the lifting motor, and the lifting block is threadedly connected to the lead screw.

[0011] Preferably, the hovering unit comprises:

[0012] The two suspension blocks are respectively connected to the top and the bottom of the lifting block and are sleeved on the outside of the lead screw. The center of the suspension block is provided with a first transmission cavity and a second transmission cavity. The first transmission cavity is connected to one side of the second transmission cavity and the two are concentrically arranged. The diameter of the second transmission cavity is larger than the diameter of the lead screw.

[0013] A rack, the rack is slidably disposed in a slide groove outside the second transmission cavity, and an end of the rack passes through the slide groove and extends toward the center of the second transmission cavity;

[0014] The limit plate is connected to the extended end of the rack, the limit plate is arranged in an arc shape, and is arranged outside the lead screw.

[0015] Preferably, the hovering unit further comprises:

[0016] A gear ring, the gear ring being rotatably connected to the inner wall of the first transmission chamber;

[0017] The gear is meshedly connected to the inner ring end of the gear ring, and the gear is connected to the second transmission cavity, and the gear is meshedly connected to the side surface of the rack.

[0018] Preferably, four limit plates are provided and are evenly arranged along the circumferential direction of the second transmission cavity, and the rack and the gear are provided corresponding to the limit plates.

[0019] Preferably, a transmission groove is provided on the side of the first transmission cavity, and the transmission groove is provided with:

[0020] A shift block is slidably connected in the transmission groove and is located at one side of the transmission groove in the initial position. One end of the shift block is connected to the outer wall of the gear ring, and a magnetic block is connected to the side of the shift block;

[0021] The electromagnetic block is arranged on the side of the transmission slot close to the magnetic block, and generates a repulsive force on the magnetic block when the electromagnetic block is energized;

[0022] An elastic reset member is connected between the other side of the transmission groove and the shifting block.

[0023] Preferably, a fixing plate is provided at a position of the side wall of the suspension block near the transmission groove, and a limiting hole is provided on the fixing plate; an elastic limiting block is provided on the side of the shift block facing the fixing plate, and the elastic limiting block can be freely extended and electrically extended in the shift block.

[0024] Preferably, a wedge block is connected to one side of the magnetic block of the shift block, the outer side of the wedge block is set as a wedge surface, and the height of the wedge surface at the connection end of the wedge block and the shift block is higher than the other end;

[0025] Limiting pressure blocks are arranged on the upper and lower parts of the lifting slide, and the positions of the limiting pressure blocks correspond to the positions of the wedge blocks.

[0026] Preferably, the hovering unit further comprises:

[0027] A sealing air cushion connected to the inner side of the limiting plate;

[0028] The airbag is connected to the suspension block, the first pipeline of the airbag passes through the suspension block and is connected to the air replenishing device, and the second pipeline of the airbag passes through the rack and the limit plate and is connected to the sealing air cushion; two airbags are provided, and each airbag is connected to two sealing air cushions.

[0029] Preferably, the hovering unit further comprises:

[0030] A pressure rod is connected to the inner wall of the gear ring, the pressure rod is bent and the end thereof abuts against the airbag, and a slot for the pressure rod to move is arranged on the suspension block.

[0031] Preferably, the lifting base further includes: a risk warning unit, the risk warning unit includes:

[0032] The detection unit uses a displacement sensor to collect the vibration amplitude of the lifting plate when the well-killing manifold body is working; the detection unit uses an air pressure sensor to collect the air pressure value of the sealing air cushion;

[0033] The controller analyzes and calculates the detection results of the detection unit through a preset algorithm, specifically:

[0034] Calculate a first risk coefficient, where the first risk coefficient is set as a ratio of a maximum air pressure value of the sealing air cushion to a preset limit air pressure within a preset detection time period, where the preset limit air pressure is set as an air pressure value of the sealing air cushion after the suspension unit locks the lead screw when the well-killing manifold body is not in a working state;

[0035] Calculating a second risk factor, where the second risk factor is set as a ratio of an average vibration amplitude of the lifting plate within a preset detection time period to a preset vibration amplitude threshold, where the preset vibration amplitude threshold is set as a threshold for maintaining a stable operation of the well-killing manifold body and is determined through experiments;

[0036] Calculating a third risk coefficient, where the third risk coefficient is set as a ratio of a maximum value to a minimum value of a vibration amplitude of the lifting plate within a preset detection time period;

[0037] The operation risk coefficient of the lifting base is calculated as: the product of the first risk coefficient, the second risk coefficient and the third risk coefficient; when the operation risk coefficient is greater than the preset risk coefficient, it indicates that the stability of the lifting base is poor and there is a risk of instability, and the alarm unit is activated to warn of the risk status.

[0038] Compared with the prior art, the present invention has at least the following beneficial effects:

[0039] The present invention provides a throttling type well-killing manifold with a lifting base, in which a suspension unit is arranged on the lifting block, and the lifting block can be locked to any position within the lifting range, so that the lifting base can adjust the well-killing manifold body to any height, quickly connect with pipelines at different heights, and maintain stability when the well-killing manifold body is impacted by high-pressure fluid during operation.

[0040] The throttling well-killing manifold with a lifting base described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0042] Figure 1 It is a schematic cross-sectional structure diagram of a throttling well-killing manifold with a lifting base according to the present invention;

[0043] Figure 2 It is a schematic diagram of the cross-sectional structure of the suspension block at the first transmission cavity in the present invention;

[0044] Figure 3 It is a schematic diagram of the cross-sectional structure of the suspension block at the second transmission cavity in the present invention;

[0045] Figure 4 For the present invention Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0046] Figure 5 For the present invention Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0047] Figure 6 It is a schematic diagram of the position structure of the suspension block and the limiting pressure block of the present invention.

[0048] In the figure: 1. bottom plate; 2. lifting column; 3. lifting plate; 4. lifting block; 5. lifting slide; 6. lead screw; 7. lifting motor; 10. well-killing manifold body; 11. suspension block; 12. first transmission chamber; 13. second transmission chamber; 14. gear ring; 15. gear; 16. rack; 17. limit plate; 21. transmission groove; 22. shift block; 23. magnetic block; 24. electromagnetic block; 25. elastic reset member; 26. fixed plate; 27. limit hole; 28. elastic limit block; 29. ​​wedge block; 30. limit pressure block; 31. sealing air cushion; 32. air bag; 33. first pipeline; 34. second pipeline; 35. pressure rod. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0050] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0051] Embodiment 1:

[0052] like Figure 1 As shown, the present invention provides a throttling well-killing manifold with a lifting base, comprising:

[0053] The well-killing manifold body 10 and the lifting base, the lifting base includes:

[0054] Base plate 1, lifting column 2 and lifting plate 3, four lifting columns 2 are respectively connected to the four corner points at the top of the base plate 1, lifting blocks 4 are slidably arranged on the lifting columns 2, the lifting plate 3 is connected to the four lifting blocks 4 at the same time, and the well-killing manifold body 10 is installed above the lifting plate 3;

[0055] The hovering unit is connected to the lifting block 4 and is used to lock the lifting block 4 at any position within a preset range of the lifting column 2.

[0056] The working principle and beneficial effects of the above technical solution are:

[0057] The present invention provides a throttling type well-killing manifold with a lifting base. When in use, the well-killing manifold body 10 is installed on the lifting plate 3, the lifting column 2 is started, and the height of the lifting plate 3 is adjusted to a preset position so that the well-killing manifold body 10 can adapt to the height of the pipeline to be connected, and then the suspension unit is started to lock the lifting block 4 with the lifting column 2 to keep the lifting plate 3 in a stable state. Through the above structural design, the suspension unit is set on the lifting block 3, and the lifting block 3 can be locked to any position within the lifting range, so that the lifting base can adjust the well-killing manifold body 10 to any height, quickly dock with pipelines of different heights, and keep stable when the well-killing manifold body 10 is impacted by high-pressure fluid during operation.

[0058] Embodiment 2:

[0059] like Figure 1 As shown, on the basis of the above-mentioned embodiment 1, a lifting slot 5 is provided on the side of the lifting column 2 close to the lifting plate 3, the lifting block 4 is slidably connected in the lifting slot 5, a lead screw 6 is rotatably connected in the lifting slot 5, the lead screw 6 is vertically arranged and the bottom end of the lead screw 6 is connected to the lifting motor 7, and the lifting block 4 is threadedly connected to the lead screw 6.

[0060] The working principle and beneficial effects of the above technical solution are:

[0061] When performing the lifting operation, the lifting motor 7 is started to drive the screw 6 to rotate. The screw 6 and the lifting block 4 are threadedly transmitted. The lifting slot 5 guides the lifting block 4, so that the lifting block 4 moves up and down along the lifting slot, thereby adjusting the height of the lifting block 4; the lifting motors 7 of the four lifting columns 2 act synchronously, and the lifting plate 3 is driven up and down by the lifting block 4, thereby realizing the adjustment of the height of the well-killing manifold body 10, so that it can be quickly connected with pipelines of different heights, and the practicality is better.

[0062] Embodiment 3:

[0063] like Figure 2-6 As shown, based on the above embodiment 2, the hovering unit includes:

[0064] Suspending blocks 11, two suspended blocks 11 are respectively connected to the top and the top of the lifting block 4, and are sleeved on the outside of the lead screw 6. The center of the suspended block 11 is provided with a first transmission cavity 12 and a second transmission cavity 13. The first transmission cavity 12 is connected to one side of the second transmission cavity 13 and the two are concentrically arranged. The diameter of the second transmission cavity 13 is larger than the diameter of the lead screw 6.

[0065] The rack 16 is slidably disposed in a slide groove outside the second transmission chamber 13, and an end of the rack 16 passes through the slide groove and extends toward the center of the second transmission chamber 13;

[0066] A limit plate 17, which is connected to the extended end of the rack 16, is arc-shaped and arranged outside the lead screw 6;

[0067] A gear ring 14, the gear ring 14 is rotatably connected to the inner wall of the first transmission chamber 12;

[0068] The gear 15 is meshedly connected to the inner ring end of the gear ring 12 , and the gear 13 is connected to the second transmission cavity 13 , and the gear 15 is meshedly connected to the side of the rack 16 .

[0069] The working principle and beneficial effects of the above technical solution are:

[0070] When the hovering unit is in use, when the lifting block 4 is adjusted to a preset height, the driving gear ring 14 rotates in the first transmission chamber 12, the gear ring 14 meshes with the gear 15 for transmission, so that the gear 15 rotates accordingly, and the gear 15 extends into the second transmission chamber 13, and the gear 15 meshes with the side of the rack 16 for transmission, driving the rack 16 to move out of the slide slot, and the rack 16 drives the limit plate 17 to clamp on the outside of the lead screw 6 and maintain a certain pressure, so as to achieve limit locking with the lead screw 6. Through the above structural design, after the lifting block 4 is adjusted to a preset height, the limit plate 17 is tightly clamped on the lead screw 6 and maintains a certain pressure, increasing the friction between the lifting block 4 and the lead screw 6, and locking the lifting block 4 and the lead screw 6, so as to prevent the well-killing manifold body 10 from vibrating under the action of high-pressure fluid when in use, causing the lifting block 4 and the lead screw 6 to slip, thereby improving the reliability of the height adjustment of the well-killing manifold body 10.

[0071] Embodiment 4:

[0072] like Figure 2-6 As shown, on the basis of the above-mentioned embodiment 3, four limit plates 17 are provided and are evenly arranged along the circumferential direction of the second transmission cavity 13 , and the rack 16 and the gear 15 are provided corresponding to the limit plates 17 .

[0073] The working principle and beneficial effects of the above technical solution are:

[0074] The number of limit plates 17 is four and they are evenly arranged along the circumferential direction of the second transmission chamber 13, so as to evenly clamp the lead screw 6 in all directions. The limit plates 17 that act synchronously can limit the lead screw 6 at the center of the lifting block 4, thereby keeping the forces on the lead screw 6 balanced in all directions and reducing local thread damage when the lead screw 6 is vibrated.

[0075] Embodiment 5:

[0076] like Figure 2-6 As shown, based on the above-mentioned embodiment 3, a transmission groove 21 is provided on the side of the first transmission cavity 12, and the transmission groove 21 is provided with:

[0077] The shift block 22 is slidably connected to the transmission groove 21 and is located at one side of the transmission groove 21 in the initial position. One end of the shift block 22 is connected to the outer wall of the gear ring 14, and a magnetic block 23 is connected to the side of the shift block 22;

[0078] The electromagnetic block 24 is disposed on a side of the transmission slot 21 close to the magnetic block 23, and generates a repulsive force on the magnetic block 23 when the electromagnetic block 24 is energized;

[0079] The elastic reset member 25 is connected between the other side of the transmission groove 21 and the shifting block 22 .

[0080] The working principle and beneficial effects of the above technical solution are:

[0081] When the hovering unit is in use, when the lifting block 4 is adjusted to a preset height, the electromagnetic block 24 is energized, and the electromagnetic block 24 generates a repulsive force on the magnetic block 23, pushing the shift block 22 to move to the side away from the electromagnetic block 24, and the shift block 22 drives the gear ring 14 to rotate and realizes the driving of the gear ring 14, thereby realizing the clamping and limiting of the lead screw 6; when the shift block 22 moves, it squeezes the elastic reset member 25 to store energy, which is convenient for resetting the shift block 22 when the limit is released.

[0082] Embodiment 6:

[0083] like Figure 2-6 As shown, on the basis of the above-mentioned embodiment 5, a fixing plate 26 is provided at a position of the side wall of the hovering block 11 close to the transmission groove 21, and a limiting hole 27 is provided on the fixing plate 26; an elastic limiting block 28 is provided on the side of the shift block 22 facing the fixing plate 26, and the elastic limiting block 28 can be freely extended and electrically extended in the shift block 22.

[0084] The working principle and beneficial effects of the above technical solution are:

[0085] When the lifting block 4 needs to be locked, as the shift block 22 moves, when the shift block 22 moves to the position of the fixed plate 26, the elastic limit block 28 thereon is squeezed and contracted in the shift block 22. When the elastic limit block 28 is directly opposite to the limit hole 27, the elastic limit block 28 is quickly ejected under the action of the elastic member and locked in the limit hole 27, so that the shift block 22 does not rotate. At this time, the electromagnetic block 24 will not be contacted and locked even if the power is turned off, so that the lifting block 4 and the lead screw 6 are kept in a stable limit locking state. When the lifting block 4 needs to be unlocked, the elastic limit block 28 is retracted into the shift block 22 by means of electric control, and the shift block 22 and the fixed plate 26 are unlocked, and the shift block 22 is quickly moved and reset under the action of the elastic reset member 25. The elastic limit block 28 can be controlled by electromagnetic action. For example, an electromagnet is set in the shift block 22, and a permanent magnet is set in the elastic limit block 28. A spring is connected between the elastic limit block 28 and the end of the groove of the shift block 22. When the electromagnet is not energized, the elastic limit block 28 can move elastically in the groove of the shift block 22; when the electromagnet is energized, the elastic limit block 28 is attracted by the magnetic force and retracted into the shift block 22.

[0086] Through the above-mentioned structural design, after the lifting block 4 and the lead screw 6 are locked in a limit position, the electromagnetic block 24 can be powered off to reduce energy consumption and maintain a stable limit position state; when the lifting block 4 needs to be contact locked, it can be quickly switched to an unlocked state to facilitate the adjustment of the lifting height.

[0087] Embodiment 7:

[0088] like Figure 2-6 As shown, on the basis of the above-mentioned embodiment 6, a wedge block 29 is connected to one side of the shift block 22 where the magnetic block 23 is arranged, and the outer side surface of the wedge block 29 is arranged as a wedge surface, and the height of the wedge surface at the connection end of the wedge block 29 and the shift block 22 is higher than the other end;

[0089] Limiting pressing blocks 30 are provided at the upper and lower parts of the lifting slide 5 , and the position of the limiting pressing blocks 30 corresponds to the position of the wedge block 29 .

[0090] The working principle and beneficial effects of the above technical solution are:

[0091] Limiting blocks 30 are arranged at the upper and lower parts of the lifting chute 5. When the height of the well-killing manifold body 10 is adjusted, when the lifting block 4 moves to the upper limit position, the wedge block 29 contacts the upper limiting block 30, and the upper limiting block 30 slides relative to the wedge surface of the wedge block 29, thereby pushing the shift block 22 to rotate, driving the limiting plate 17 to move, and realizing automatic limiting locking of the lead screw 6, while cutting off the power of the lifting motor 7; the upper limit position of the lifting block 4 is effectively limited, so that the height of the well-killing manifold body 10 is within the preset range, and the adjustment height is too high to avoid affecting the stability of the well-killing manifold body 10 when in use. When the well-killing manifold body 10 falls, the lower limiting block 30 can automatically realize the clamping and locking of the lead screw 6 by the limiting plate 17, increase the friction force when the lifting block 4 falls, delay or prevent the falling process of the well-killing manifold body 10, and improve the safety performance of the well-killing manifold.

[0092] Embodiment 8:

[0093] like Figure 2-6 As shown, based on the above embodiment 3, the hovering unit further includes:

[0094] A sealing air cushion 31, which is connected to the inner side of the limiting plate 17;

[0095] The airbag 32 is connected to the suspension block 11. The first pipeline 33 of the airbag 32 passes through the suspension block 11 and is connected to the air supply device. The second pipeline 34 of the airbag 32 passes through the rack 16 and the limit plate 17 and is connected to the sealing air cushion 31. Two airbags 32 are provided, and each airbag 32 is connected to two sealing air cushions 31.

[0096] The pressure rod 35 is connected to the inner wall of the gear ring 14 . The pressure rod 35 is bent and its end abuts against the airbag 32 . The suspension block 11 is provided with a slot for the pressure rod 35 to move.

[0097] The working principle and beneficial effects of the above technical solution are:

[0098] When the gear ring 14 rotates, it drives the pressure rod 35 to squeeze the airbag 32, so that the air pressure in the airbag 32 increases, and the gas in the airbag 32 is squeezed into the sealing air cushion 31; when the limit plate 31 clamps the lead screw 6, the sealing air cushion 31 expands and abuts against the lead screw 6; because the sealing air cushion 31 is a flexible air cushion, the sealing air cushion 31 can fill the gap of the second transmission cavity 13 and the gap between the limit plate 31 and the lead screw 6 after expansion, thereby improving the clamping effect on the lead screw 6. In addition, when the well-killing manifold body 10 vibrates, the sealing air cushion 31 contacts the lead screw 6, which can further dissipate the vibration wave on the transmission path, reduce the transmission of vibration to the lifting base, reduce the collision damage of the thread on the lead screw 6, and improve the overall seismic resistance and stability of the structure.

[0099] Embodiment 9:

[0100] On the basis of the above-mentioned embodiment 8, the lifting base further includes: a risk warning unit, and the risk warning unit includes:

[0101] The detection unit uses a displacement sensor to collect the vibration amplitude of the lifting plate 3 when the well-killing manifold body 10 is working; the detection unit uses an air pressure sensor to seal the air cushion 31;

[0102] The controller analyzes and calculates the detection results of the detection unit through a preset algorithm, specifically:

[0103] Calculate a first risk coefficient, which is set as a ratio of a maximum air pressure value of the sealing air cushion 31 to a preset limit air pressure within a preset detection time period, and the preset limit air pressure is set as an air pressure value of the sealing air cushion 31 after the suspension unit locks the lead screw 6 when the well killing manifold body 10 is not in a working state;

[0104] Calculate a second risk factor, where the second risk factor is set as a ratio of an average vibration amplitude of the lifting plate 3 to a preset vibration amplitude threshold value within a preset detection time period, and the preset vibration amplitude threshold value is set as a threshold value for maintaining stable operation of the well-killing manifold body 10, and is determined through experiments;

[0105] Calculate a third risk coefficient, where the third risk coefficient is set as the ratio of the maximum value to the minimum value of the vibration amplitude of the lifting plate 3 within a preset detection time period;

[0106] The operation risk coefficient of the lifting base is calculated as: the product of the first risk coefficient, the second risk coefficient and the third risk coefficient; when the operation risk coefficient is greater than the preset risk coefficient, it indicates that the stability of the lifting base is poor and there is a risk of instability, and the alarm unit is activated to warn of the risk status.

[0107] The working principle and beneficial effects of the above technical solution are:

[0108] When the well-killing manifold body 10 is in use, it is subjected to the impact and vibration of high-pressure fluid for a long time, which will cause the connection of the structural parts on the lifting base to loosen, the stability of the lifting plate 3 to decrease, and the vibration amplitude to increase; and the irregular vibration will cause the lifting columns 2 to be unevenly stressed, and the air pressure of the sealing air cushion 31 will change accordingly after being vibrated. Through the above-mentioned preset algorithm, the vibration amplitude of the lifting plate 3 and the air pressure change of the sealing air cushion 31 are monitored in real time, and a preset time interval is set to analyze the operation risk within this time interval; the first risk coefficient reflects the degree of uneven force on each lifting column 2; the second risk coefficient reflects the degree of vibration of the lifting plate 3; the third risk coefficient reflects the degree of uneven vibration of the lifting plate 3; the operation risk coefficient of the lifting base is obtained by summing up the analysis and calculation, and the stability of the lifting base is warned, which provides a basis for the maintenance of the equipment and facilitates the automatic monitoring of the manifold.

[0109] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0110] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0111] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A throttling type well-killing manifold with a lifting base, characterized in that: include: The well-killing manifold body (10) and the lifting base, the lifting base comprises: A base plate (1), a lifting column (2) and a lifting plate (3), wherein the four lifting columns (2) are respectively connected to the four corner points at the top of the base plate (1), a lifting block (4) is slidably arranged on the lifting column (2), the lifting plate (3) is simultaneously connected to the four lifting blocks (4), and the well-killing manifold body (10) is installed above the lifting plate (3); A suspension unit is connected to the lifting block (4) and is used to lock the lifting block (4) at any position within a preset range of the lifting column (2).

2. A throttling well-killing manifold with a lifting base according to claim 1, characterized in that: A lifting slot (5) is provided on one side of the lifting column (2) close to the lifting plate (3), the lifting block (4) is slidably connected in the lifting slot (5), a lead screw (6) is rotatably connected in the lifting slot (5), the lead screw (6) is arranged vertically and the bottom end of the lead screw (6) is connected to the lifting motor (7), and the lifting block (4) is threadedly connected to the lead screw (6).

3. A throttling well-killing manifold with a lifting base according to claim 2, characterized in that: The hover unit includes: A suspension block (11), wherein the two suspension blocks (11) are respectively connected to the top and the bottom of the lifting block (4) and are sleeved on the outside of the lead screw (6); a first transmission cavity (12) and a second transmission cavity (13) are provided at the center of the suspension block (11); the first transmission cavity (12) is connected to one side of the second transmission cavity (13) and the two are concentrically arranged; and the diameter of the second transmission cavity (13) is greater than the diameter of the lead screw (6); A rack (16), the rack (16) is slidably disposed in a slide groove outside the second transmission chamber (13), and an end of the rack (16) passes through the slide groove and extends toward the center of the second transmission chamber (13); A limit plate (17) is connected to the extended end of the rack (16), the limit plate (17) is arranged in an arc shape, and is disposed outside the lead screw (6).

4. A throttling well-killing manifold with a lifting base according to claim 3, characterized in that: The hover unit also includes: A gear ring (14), the gear ring (14) is rotatably connected to the inner wall of the first transmission chamber (12); The gear (15) is meshedly connected to the inner ring end of the gear ring (12), and the gear (13) is connected to the second transmission cavity (13), and the gear (15) is meshedly connected to the side of the rack (16).

5. A throttling well-killing manifold with a lifting base according to claim 4, characterized in that: Four limiting plates (17) are provided and are evenly arranged along the circumferential direction of the second transmission cavity (13); the rack (16) and the gear (15) are provided corresponding to the limiting plates (17).

6. A throttling well-killing manifold with a lifting base according to claim 4, characterized in that: A transmission groove (21) is arranged on the side of the first transmission cavity (12), and the transmission groove (21) is provided with: A shift block (22), the shift block (22) is slidably connected in the transmission groove (21), and is located at one side of the transmission groove (21) in an initial position, one end of the shift block (22) is connected to the outer wall of the gear ring (14), and a magnetic block (23) is connected to the side of the shift block (22); An electromagnetic block (24), the electromagnetic block (24) being arranged on a side of the transmission slot (21) close to the magnetic block (23), and generating a repulsive force on the magnetic block (23) when the electromagnetic block (24) is energized; An elastic reset member (25) is connected between the other side of the transmission groove (21) and the shifting block (22).

7. A throttling well-killing manifold with a lifting base according to claim 6, characterized in that: A fixing plate (26) is arranged at a position of the side wall of the suspension block (11) close to the transmission groove (21), and a limiting hole (27) is arranged on the fixing plate (26); an elastic limiting block (28) is arranged on a side of the shifting block (22) facing the fixing plate (26), and the elastic limiting block (28) can be freely extended and electrically controlled to extend and retract in the shifting block (22).

8. The throttling well-killing manifold with a lifting base according to claim 7, characterized in that: A wedge block (29) is connected to one side of the shift block (22) on which the magnetic block (23) is arranged, and the outer side surface of the wedge block (29) is arranged as a wedge surface, and the height of the wedge surface at the connection end of the wedge block (29) and the shift block (22) is higher than that at the other end; The upper and lower parts of the lifting slide groove (5) are both provided with limit pressure blocks (30), and the position of the limit pressure blocks (30) corresponds to the position of the wedge block (29).

9. The throttling well-killing manifold with a lifting base according to claim 3, characterized in that: The hover unit also includes: A sealing air cushion (31), the sealing air cushion (31) is connected to the inner side of the limiting plate (17); The airbag (32) is connected to the inside of the suspension block (11); the first pipeline (33) of the airbag (32) passes through the suspension block (11) to be connected to the air replenishing device; the second pipeline (34) of the airbag (32) passes through the rack (16) and the limit plate (17) to be connected to the sealing air cushion (31); two airbags (32) are provided, and each airbag (32) is connected to two sealing air cushions (31).

10. A throttling well-killing manifold with a lifting base according to claim 9, characterized in that: The hover unit also includes: A pressure rod (35) is connected to the inner wall of the gear ring (14). The pressure rod (35) is bent and its end abuts against the air bag (32). The suspension block (11) is provided with a slot for the pressure rod (35) to move.

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