Triggering magnetic force monitoring device and monitoring method for magnetic control multidirectional pressure maintaining controller

Abstract

The invention relates to a magnetic control multidirectional pressure maintaining controller triggering magnetic force monitoring device and method, and the device comprises a supporting platform, a valve seat holder, a horizontal guide rail, a vertical rod, a first force sensor, a second force sensor and a third force sensor, the first force sensor and the second force sensor are installed on the vertical rod, and the third force sensor is installed on the horizontal guide rail. The triggering permanent magnet is used for applying repulsive force to the valve clack permanent magnet on the valve clack so as to trigger the valve clack to be closed; one end of the second force sensor is connected with the sliding block on the vertical rod, and the other end of the second force sensor is rotationally connected with the inner surface of the valve clack; the lower end of the third force sensor is connected with the sliding block on the horizontal guide rail, and the upper end of the third force sensor is rotationally connected with the inner surface of the valve clack. The stress conditions of the valve clack at different rotation angles can be monitored respectively, the change of magnetic force in the whole triggering process can be known in detail, and the magnetic circuit design can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure-maintaining coring, and in particular to a magnetic monitoring device and a monitoring method for triggering a magnetic force of a magnetically controlled multi-directional pressure-maintaining controller. Background Art

[0002] Traditional pressure-maintaining coring devices are mainly used for vertical coring. This team innovatively proposed a magnetically controlled self-triggered multi-directional pressure-maintaining coring technology, such as the simple magnetically triggered multi-directional pressure-maintaining coring device disclosed in the Chinese patent document with publication number CN113958279A. The magnetically controlled self-triggered pressure-maintaining controller in the magnetically controlled multi-directional pressure-maintaining coring technology is the key, especially when it comes to magnetically controlled self-triggering and self-sealing. During the triggering process, magnetic monitoring helps to analyze the reliability of the pressure-maintaining controller in the complex black box environment underground, and optimize the magnetic control technology through calculation. However, the existing technology mostly uses numerical analysis, which cannot verify its accuracy and has large errors. Therefore, it is necessary to carry out magnetic monitoring of the entire process of self-triggering and self-sealing to provide data support for theory and optimization. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a magnetic force monitoring device and a monitoring method for triggering a magnetically controlled multi-directional pressure-maintaining controller.

[0004] The present invention is achieved through the following technical solutions:

[0005] A magnetic monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller comprises a supporting platform, a valve seat clamp mounted on the supporting platform, a horizontal guide rail mounted on the supporting platform, a vertical pole fixed to the supporting platform at the bottom, a first force sensor mounted on the vertical pole, a second force sensor mounted on another vertical pole and movable up and down along the vertical pole, and a third force sensor mounted on the horizontal guide rail and movable along the horizontal guide rail, wherein one end of the first force sensor is connected to a triggering permanent magnet, and the triggering permanent magnet is used to apply a repulsive force to the valve disc permanent magnet on the valve disc to trigger the valve disc to close; one end of the second force sensor is connected to a vertical slider on the vertical pole, and the other end of the second force sensor is rotationally connected to the inner surface of the valve disc; the lower end of the third force sensor is connected to the horizontal slider on the horizontal guide rail, and the upper end of the third force sensor is rotationally connected to the inner surface of the valve disc; the second force sensor and the third force sensor are retractable.

[0006] Preferably, the valve seat holder is a clamp structure.

[0007] Optionally, the support platform is rotatable in a vertical plane.

[0008] Furthermore, the magnetic monitoring device triggered by the magnetically controlled multi-directional pressure-maintaining controller also includes a base, a movable seat, an annular guide rail and an annular driving mechanism, wherein the axis of the annular guide rail is parallel to the horizontal plane; the supporting platform is mounted on the movable seat, the movable seat is mounted on the annular guide rail, and the annular driving mechanism is connected to the movable seat for driving the movable seat to move in an annular direction along the annular guide rail.

[0009] Optionally, the annular driving mechanism includes a stepper motor mounted on a movable seat and a gear connected to the output of the stepper motor, and a coaxial annular rack is provided on the annular guide rail, and the gear is meshed with the annular rack.

[0010] Optionally, the support platform is connected to the movable seat via a support rod, one end of the support rod is connected to the movable seat, and the other end of the support rod is connected to the support platform.

[0011] Optionally, a magnetically controlled multi-directional pressure-maintaining controller triggering a magnetic monitoring device also includes a rotary drive motor for driving the rotation, wherein both sides of the support platform are respectively connected to the movable seat through support rods, one end of the support rod is rotatably connected to the support platform through a rotating shaft, and the axis of the rotating shaft is perpendicular to the axis of the annular guide rail; the output of the rotary drive motor is connected to the rotating shaft.

[0012] Optionally, scales are provided on the vertical pole corresponding to the second force sensor and on the horizontal guide rail.

[0013] The present application provides a method for triggering magnetic force monitoring of a magnetically controlled multi-directional pressure-maintaining controller, comprising the following steps:

[0014] First, fix the valve seat of the pressure-maintaining controller with a valve seat clamp, and calibrate the first force sensor to a value of 0;

[0015] Then, slide the second force sensor along the vertical rod to make the valve flap in the open state. At this time, the triggering permanent magnet is subjected to the magnetic repulsion force of the driving permanent magnet. The initial force of the second sensor is calibrated to be equal to the measured value of the first force sensor, and the measured value of the third force sensor is 0.

[0016] Then, manually move the second force sensor downward along the vertical pole, and the third force sensor will also move along the horizontal guide rail, and record the values ​​of the second force sensor and the third force sensor during the movement;

[0017] When the third force sensor is located at the axis center line of the valve seat, the position of the third force sensor on the horizontal guide rail is fixed and the third force sensor is no longer moved;

[0018] Afterwards, the second force sensor is moved downward along the horizontal guide rail until the second force sensor cannot move vertically, and then the second force sensor is removed, and the third force sensor continues to measure;

[0019] When the valve disc is closed, the measurement value of the third force sensor is the initial preload value of the pressure-maintaining controller.

[0020] Compared with the prior art, this application has at least the following beneficial effects:

[0021] 1. The present application can monitor the force of the valve disc at different rotation angles through the second pressure sensor and the third force sensor, which is conducive to a detailed understanding of the change of magnetic force during the entire triggering process and helps to improve the magnetic circuit design; and through the actual object test, it is closer to the actual situation and helps to reduce errors;

[0022] 2. The main body of the present application can be rotated at any angle, and the magnetic force can be monitored during multi-directional coring at any angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A three-dimensional diagram of the main mechanism of the magnetic force monitoring device triggered by the magnetically controlled multi-directional pressure-maintaining controller in the embodiment;

[0025] Figure 2 It is a cross-sectional view of the main body mechanism in the initial state in the embodiment;

[0026] Figure 3 A cross-sectional view of the main body mechanism during the valve flap closing process in the embodiment;

[0027] Figure 4 It is a structural schematic diagram of a magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller in an embodiment;

[0028] Figure 5 It is a structural schematic diagram of the magnetic monitoring device triggered by the magnetically controlled multi-directional pressure-maintaining controller when the annular guide rail is not shown in the embodiment;

[0029] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0030] Figure 7 Schematic diagram of the structure of the annular guide rail and the annular drive mechanism in the embodiment;

[0031] Figure 8 It is a schematic diagram of the structure of the supporting platform and the movable seat in the embodiment. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-Figure 3 As shown, a magnetic monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller disclosed in this embodiment includes a main body mechanism, which includes a support platform 1, a valve seat clamp 2, a horizontal guide rail 3, a vertical rod 4, a trigger permanent magnet 5, a first force sensor 51, a second force sensor 61 and a third force sensor 71. The bottom of the vertical rod 4 is fixedly connected to the support platform 1, and the horizontal guide rail 3 is installed on the support platform 1.

[0037] The pressure-maintaining controller comprises a valve seat 11 and a valve flap 12. One end of the valve flap 12 is rotatably connected to the valve seat 11. A valve flap permanent magnet 13 is mounted on the outer surface of the valve flap 12. A valve seat holder 2 is fixed on the supporting platform 1 and is used to hold and fix the valve seat 11.

[0038] The first force sensor 51 is mounted on the vertical rod 4, one end of the first force sensor 51 is connected to the vertical rod 4, and the other end of the first force sensor 51 is connected to the trigger permanent magnet 5. The trigger permanent magnet 5 is used to apply a repulsive force to the valve disc permanent magnet 13 on the valve disc 12 to trigger the valve disc 12 to close. The first force sensor 51 is used to measure the force between the trigger permanent magnet 5 and the valve disc permanent magnet 13.

[0039] The second force sensor 61 and the third force sensor 71 are used to detect the force exerted by the valve flap 12 on the valve flap 12 during the closing process. The second force sensor 61 is installed on another vertical rod 4 and can move up and down along the vertical rod 4. The second force sensor 61 is set on the other side opposite to the trigger permanent magnet 5. One end of the second force sensor 61 is connected to the vertical slider on the vertical rod 4, and the other end of the second force sensor 61 is rotatably connected to the inner surface of the valve flap 12. Of course, a locking structure is provided between the vertical slider and the vertical rod 4, and the vertical slider can be locked by the locking structure. The locking structure can use components such as bolts, which is a conventional technology in the field and will not be repeated here.

[0040] The third force sensor 71 is mounted on the horizontal guide rail 3 and can move along the horizontal guide rail 3. The lower end of the third force sensor 71 is connected to the horizontal slider on the horizontal guide rail 3, and the upper end of the third force sensor 71 is rotatably connected to the inner surface of the valve disc 12. The upper end of the third spring rod 72 is rotatably connected to the inner surface of the valve disc 12. Of course, a locking structure is provided between the horizontal slider and the horizontal guide rail 3, and the horizontal slider can be locked by the locking structure. The locking structure can use components such as bolts, which is a conventional technology in the field and will not be repeated here.

[0041] The second force sensor 61 and the third force sensor 71 are retractable force sensors, which can accurately measure the magnitude of the force, the direction of the force, the point of application and other information. Specifically, during the compression process, as the external force increases, the elastic element of the sensor will deform more significantly, thereby generating a larger electrical signal output; conversely, when the external force decreases, the deformation will also decrease accordingly, and the electrical signal output will also decrease. This characteristic enables the retractable force sensor to accurately measure and reflect the change in force during the compression process.

[0042] In some embodiments, one end of the second force sensor 61 and one end of the third force sensor 71 are both rotatably connected to the center position of the valve flap 12 .

[0043] Optionally, the valve seat holder 2 is a clamp structure, which can clamp the valve seats 11 of pressure-maintaining controllers of different sizes.

[0044] In some embodiments, scales are provided on the vertical pole 4 corresponding to the second force sensor 61 and on the horizontal guide rail 3 corresponding to the third force sensor 71, so as to facilitate quantitative adjustment of the displacement of the second force sensor 61 and the third force sensor 71. In a possible design, the support platform 1 can rotate in a vertical plane to realize magnetic force monitoring during multi-directional coring at any angle.

[0045] like Figure 4-Figure 6 As shown, in some embodiments, the magnetic force monitoring device triggered by the magnetically controlled multi-directional pressure-maintaining controller further includes a base 80, a movable seat 81, an annular guide rail 82 and an annular driving mechanism. The annular guide rail 82 is installed on the base 80, and the axis of the annular guide rail 82 is parallel to the horizontal plane.

[0046] The supporting platform 1 is mounted on a movable seat 81 , and the movable seat 81 is mounted on an annular guide rail 82 and can move circumferentially along the annular guide rail 82 . The circumferential driving mechanism is connected to the movable seat 81 to drive the movable seat 81 to move circumferentially along the annular guide rail 82 .

[0047] In some embodiments, Figure 7 As shown, the annular drive mechanism includes a stepper motor 91 installed on a movable seat 81 and a gear 92 connected to the output of the stepper motor 91. A coaxial annular rack 93 is provided on the annular guide rail 82. The gear 92 is meshed with the annular rack 93. The rotation of the stepper motor 91 drives the gear 92 to rotate. The gear 92 meshes with the annular rack 93 to move, which can drive the support platform 1, the pressure-maintaining controller, etc. to rotate synchronously in the vertical plane, thereby adjusting the coring angle.

[0048] In some embodiments, Figure 5 As shown, the support platform 1 is connected to the movable seat 81 via a support rod 83 , one end of the support rod 83 is connected to the movable seat 81 , and the other end of the support rod 83 is connected to the support platform 1 .

[0049] In some embodiments, both sides of the support platform 1 are connected to the movable seat 81 through support rods 83, and one end of the support rod 83 is connected to the support platform 1 through a rotating shaft. The axis of the rotating shaft is perpendicular to the axis of the annular guide rail 2. Figure 8 As shown, the output of the rotary drive motor 84 is connected to the rotary shaft. The rotary drive motor 84 rotates, so that the support platform 1 can rotate around the rotary shaft and the coring angle can also be adjusted. By coordinating with the annular guide rail 82 and the annular drive mechanism for circumferential adjustment, the simulation of coring conditions at any angle can be achieved.

[0050] The main body of the test device in this embodiment can be rotated at any angle to realize the monitoring of magnetic force during multi-directional coring at any angle. According to the force analysis, the valve flap 12 has only axial z and radial x trigger forces during rotation. The force conditions of the valve flap 12 at different rotation angles can be monitored respectively by the second force sensor 61 and the third force sensor 71.

[0051] In addition, the influence of gravity can be tested by permanent magnet arrangement or theoretical calculation. For example, when measuring gravity, the trigger permanent magnet 5 is removed and only the valve disc permanent magnet 13 on the valve disc 12 is retained. The rotation angle of the valve disc 12 can be monitored by a high-speed camera. The change of magnetic force during the entire triggering process can be understood in detail, which is helpful to improve the magnetic circuit design.

[0052] A method for using a magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller comprises the following steps:

[0053] First, install the trigger permanent magnet 5 and the pressure-maintaining controller. Calibrate the first force sensor 51 corresponding to the trigger permanent magnet 5 to a value of 0;

[0054] Then, the second force sensor 61 is slid along the vertical rod 4, so that the valve flap 12 is in the initial open state. Figure 3 As shown; at this time, the magnetic repulsion force of the trigger permanent magnet 5 on the driving permanent magnet is F x0 At this time, the x-direction force is calibrated to be consistent with the measurement value of the first force sensor 51 on the trigger permanent magnet 5, and the initial force of the second sensor 61 is equal to the measurement value of the first force sensor 51; the z-axial force is calibrated to be 0.

[0055] Then, manually move the second force sensor 61 downward along the vertical pole 4, and the third force sensor 71 will also move along the horizontal guide rail 3, with each displacement of 1 mm. After moving to a fixed position, lock it with a locking structure. The displacement of the second force sensor 61 along the vertical pole 4 is z, and the displacement of the third force sensor 71 along the horizontal guide rail 3 is recorded as x. Every time z moves 1 mm, record a set of values ​​of the second force sensor 61 and the third force sensor 71.

[0056] When the third force sensor 71 is located at the center of the valve seat 11, the position of the third force sensor 71 on the horizontal guide rail 3 is fixed and no longer moves;

[0057] After that, the second force sensor 61 continues to move downward along the horizontal guide rail 3 until the second force sensor 61 cannot move in the z direction, then the second force sensor 61 is removed, and the third force sensor 71 continues to record the z-direction force, finally forming a graph about F x , F z The force group forms the force group during the rotation of the valve disc 12. When the valve disc 12 is closed, the force F in the z direction z-sealingis the initial preload force. x It cannot be measured, but the impact on the overall mechanical observation is very small and can be ignored. Because only the third force sensor 71 is monitoring, F x Relative to F z It is already very small and can be ignored, and will not affect the overall mechanical analysis.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller, characterized in that: include: Support platform (1); A valve seat holder (2) mounted on the supporting platform (1); A horizontal guide rail (3) mounted on the supporting platform (1); A vertical pole (4) whose bottom is fixedly connected to the supporting platform (1); A first force sensor (51) mounted on the vertical rod (4), one end of the first force sensor (51) being used to connect to a trigger permanent magnet (5), the trigger permanent magnet (5) being used to apply a repulsive force to a valve flap permanent magnet (13) on the valve flap (12) to trigger the valve flap (12) to close; a second force sensor (61) mounted on another vertical rod (4) and movable up and down along the vertical rod (4), one end of the second force sensor (61) being connected to a vertical slider on the vertical rod (4), and the other end of the second force sensor (61) being rotatably connected to an inner surface of the valve flap (12); A third force sensor (71) is mounted on the horizontal guide rail (3) and can move along the horizontal guide rail (3); the lower end of the third force sensor (71) is connected to a horizontal slider on the horizontal guide rail (3); the upper end of the third force sensor (71) is rotatably connected to the inner surface of the valve flap (12); the second force sensor (61) and the third force sensor (71) are retractable.

2. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 1, characterized in that: The valve seat holder (2) is a clamp structure.

3. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 1, characterized in that: The supporting platform (1) can rotate in a vertical plane.

4. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 3, characterized in that: It also includes a base (80), a movable seat (81), an annular guide rail (82) and an annular driving mechanism, wherein the axis of the annular guide rail (82) is parallel to the horizontal plane; The support platform (1) is mounted on a movable seat (81), the movable seat (81) is mounted on an annular guide rail (82), and the annular drive mechanism is connected to the movable seat (81) for driving the movable seat (81) to move annularly along the annular guide rail (82).

5. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 4, characterized in that: The annular driving mechanism comprises a stepping motor (91) mounted on a movable seat (81) and a gear (92) connected to the output of the stepping motor (91); a coaxial annular gear rail (93) is arranged on the annular guide rail (82); the gear (92) meshes with the annular gear rail (93).

6. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 3, 4 or 5, characterized in that: The support platform (1) is connected to the movable seat (81) via a support rod (83), one end of the support rod (83) is connected to the movable seat (81), and the other end of the support rod (83) is connected to the support platform (1).

7. A magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 6, characterized in that: It also includes a rotary drive motor (84) for driving the rotation. The two sides of the support platform (1) are connected to the movable seat (81) through support rods (83) respectively. One end of the support rod (83) is rotatably connected to the support platform (1) through a rotating shaft. The axis of the rotating shaft is perpendicular to the axis of the annular guide rail (2). The output of the rotary drive motor (84) is connected to the rotating shaft.

8. The magnetic force monitoring device triggered by a magnetically controlled multi-directional pressure-maintaining controller according to claim 1, characterized in that: The vertical rod (4) corresponding to the second force sensor (61) is provided with a scale, and the horizontal guide rail (3) is provided with a scale.

9. A method for monitoring the magnetic force triggered by a magnetically controlled multi-directional pressure-maintaining controller, characterized in that: A magnetically controlled multi-directional pressure-maintaining controller as described in claims 1-8 is used to trigger a magnetic force monitoring device. The following steps are involved: First, the valve seat (11) of the pressure-maintaining controller is fixed by a valve seat clamp (2), and the value of the first force sensor (51) is calibrated to be 0; Then, the second force sensor (61) is slid along the vertical rod (4) so ​​that the valve flap (12) is in an open state. At this time, the triggering permanent magnet (5) is subjected to the magnetic repulsion force of the driving permanent magnet. The initial force of the second sensor (61) is calibrated to be equal to the measured value of the first force sensor (51), and the measured value of the third force sensor (71) is 0; Then, the second force sensor (61) is manually moved downward along the vertical pole (4) in a quantitative manner, and the third force sensor (71) is also moved along the horizontal guide rail (3), and the values ​​of the second force sensor (61) and the third force sensor (71) are recorded during the movement; When the third force sensor (71) is located at the axis of the valve seat (11), the position of the third force sensor (71) on the horizontal guide rail (3) is fixed and the third force sensor (71) is no longer moved; Thereafter, the second force sensor (61) is moved downward along the horizontal guide rail (3) until the second force sensor (61) cannot move vertically, and then the second force sensor (61) is removed, and the third force sensor (71) continues to measure; When the valve flap (12) is closed, the measurement value of the third force sensor (71) is the initial preload value of the pressure-maintaining controller.

10. A method for monitoring the triggered magnetic force of a magnetically controlled multi-directional pressure-maintaining controller according to claim 9, characterized in that: The second force sensor (61) is displaced 1 mm each time.

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