Mud tank and sea valve switch indicating device thereof

Abstract

The utility model discloses a mud tank and a subsea valve switch indicating device thereof, and relates to the technical field of well drilling, and the subsea valve switch indicating device comprises a mounting substrate arranged on the upper tank surface of a mud tank body; one end of the indicating plate is rotationally mounted on the mounting substrate; at least two driving parts are arranged on the periphery of the rotating sleeve, the top surface of the rotating sleeve is lower than the bottom surface of the mounting base plate, when the subsea valve control lead screw rotates, the rotating sleeve drives the driving parts to rotate, and the driving parts drive the indicating plate to turn over relative to the mounting base plate; the opening and closing state of the sea valve is determined according to the overturning direction of the indicator board. Therefore, it is guaranteed that the sea valve control lead screw is not exposed out of the upper layer tank face of the mud tank body in the non-adjusting state, the injury risk of workers is reduced, the opening and closing state of the sea valve can be rapidly and accurately judged through the indicator board, the operation efficiency of a mud system is improved, and operation errors caused by misjudgment of the opening and closing state of the sea valve can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling, more particularly to a subsea valve switch indicating device, in addition, the utility model discloses a mud tank including the subsea valve switch indicating device. BACKGROUND

[0002] During the operation of the drilling mud solid control system, the flow and pressure of the mud circulation need to be controlled by adjusting the subsea valve of the mud tank to ensure the safety of the wellhead area and maintain the continuity of the mud circulation.

[0003] The upper tank surface of the conventional mud tank body is a single-layer structure, and the subsea valve control handle is arranged on the upper tank surface of the mud tank body, so that the operator can determine the opening and closing state of the subsea valve by observing the length of the upper screw rod of the subsea valve.

[0004] However, in order to improve the intrinsic safety of the equipment, the upper tank surface of the mud tank body is designed as a double-layer structure, and the distance between the upper and lower tank surfaces is about 500 mm. All equipment must be lower than the upper tank surface to ensure that the upper tank surface is flat and free of obstacles, thereby reducing the risk of injury to the operator. Therefore, the control screw rod and handle of the subsea valve cannot protrude from the upper tank surface. Only when the subsea valve needs to be controlled, the matching handle is placed on the upper end of the control screw rod of the subsea valve to perform the opening and closing operation, which makes it impossible for the operator to determine the opening and closing state of the subsea valve in a timely and accurate manner.

[0005] In summary, how to determine the opening and closing state of the subsea valve in a timely and accurate manner is a problem that needs to be solved by the technical personnel in the field. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model aims to provide a subsea valve switch indicating device, which can determine the opening and closing state of the subsea valve according to the turning direction of the indicating plate, thereby reducing the risk of injury to the operator and enabling the opening and closing state of the subsea valve to be determined quickly and accurately.

[0007] In addition, the utility model also provides a mud tank including the above-mentioned subsea valve switch indicating device.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A subsea valve switch indicating device, comprising:

[0010] An installation base plate arranged on the upper tank surface of the mud tank body;

[0011] An indicating plate rotatably installed on one end of the installation base plate;

[0012] A rotating sleeve fitted on the upper part of the control screw of the subsea valve has at least two driving parts on its outer periphery. The top surface of the rotating sleeve is lower than the bottom surface of the mounting base plate. When the control screw of the subsea valve rotates, the rotating sleeve drives the driving parts to rotate. The driving parts drive the indicator plate to flip relative to the mounting base plate so as to determine the opening and closing state of the subsea valve according to the flipping direction of the indicator plate.

[0013] Preferably, the mounting base plate is provided with an indicator plate mounting groove for the indicator plate to pass through, and ear plates are provided on both sides of the indicator plate mounting groove. The indicator plate is rotatably mounted between the ear plates on both sides by means of a pin.

[0014] Preferably, the rotating sleeve includes a circular ring, and a control screw mounting plate is provided inside the circular ring. The control screw mounting plate is keyed to the bottom valve control screw, and the mating part of the bottom valve control screw for cooperating with the handwheel protrudes from the control screw mounting plate.

[0015] The outer periphery of the circular ring is provided with at least two drive portions in the radial direction.

[0016] Preferably, the drive unit includes a plurality of baffles, which are evenly distributed along the circumference of the circular cylindrical ring.

[0017] Preferably, the indicator plate includes a circular indicator portion and a connecting portion for rotatably connecting with the mounting base plate. The connecting portion is arranged along the radial direction of the circular indicator portion and has a pin hole for mounting a pin.

[0018] Preferably, the indicator plate has marking areas on both sides, which are used to distinguish the front and back of the indicator plate in order to determine the flipping direction of the indicator plate.

[0019] Preferably, it further includes a direction indicator for indicating the flipping direction of the indicator plate, the direction indicator being disposed on the mounting base plate.

[0020] Preferably, the direction indicator includes indicator baffles, which are disposed at both ends of the pin of the indicator plate in the axial direction, and the two ends of the indicator baffles are provided with flanges at the ends that are away from the axis of the pin. The flanges of the two indicator baffles are oriented in opposite directions and are used to abut against the indicator plate so that the indicator plate is parallel to the mounting base plate.

[0021] Preferably, the mounting base plate is provided with at least three bolt mounting holes for mounting fastening bolts. The mounting base plate is connected to the upper tank surface of the mud tank through the fastening bolts, and the centers of the at least three bolt mounting holes are not collinear.

[0022] A mud tank includes a mud tank body and a subsea valve switch indicator device as described in any of the above claims, wherein the subsea valve switch indicator device is located on the upper surface of the mud tank body.

[0023] The subsea valve switch indicator device provided by this utility model has a rotating sleeve that rotates synchronously with the subsea valve control screw. This rotation, through the drive unit, causes the indicator plate to rotate around the axis relative to the mounting base. The switching direction of the indicator plate determines the switch status of the subsea valve. This ensures that the subsea valve control screw does not protrude from the upper tank surface of the mud tank when not in the adjustment state, keeping the upper tank surface flat and unobstructed, reducing the risk of injury to workers. Furthermore, the device allows for quick and accurate determination of the subsea valve switch status through the rotation direction of the indicator plate, improving the operational efficiency of the mud system and effectively preventing operational errors caused by misjudging the switch status of the subsea valve.

[0024] In addition, this utility model also provides a mud tank including the above-mentioned submarine valve switch indicator device. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 A schematic diagram of a specific embodiment of the sea valve switch indicator device provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the subsea valve switch indicator after the mounting base plate has been removed.

[0028] Figure 3 This is a schematic diagram of the indicator plate in the open state of the sea valve;

[0029] Figure 4 This is a schematic diagram of the indicator plate in the closed state of the sea valve;

[0030] Figure 5 This is an assembly diagram of the indicator plate, ear plate, and indicator baffle.

[0031] Figure 6 This is a schematic diagram of the structure for mounting the substrate;

[0032] Figure 7 This is a schematic diagram of the indicator panel.

[0033] Figure 8 This is a schematic diagram of the ear plate structure;

[0034] Figure 9 This is a schematic diagram of the indicator baffle.

[0035] Figure 10 This is a schematic diagram of the rotating sleeve.

[0036] Figures 1-10 middle:

[0037] 10-Sea valve control screw; 20-Upper tank surface of mud tank; 1-Mounting base plate; 11-Indicator plate mounting groove; 12-Center hole; 2-Indicator plate; 21-Circular indicator part; 22-Connecting part; 221-Pin hole; 3-Ear plate; 4-Indicator baffle; 41-Flange; 5-Rotating sleeve; 51-Stop bar; 52-Circular cylindrical ring; 53-Control screw mounting plate; 6-Pin. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] The core of this invention is to provide a subsea valve switch indicator device that can determine the switch status of the subsea valve based on the flipping direction of the indicator plate, which reduces the risk of injury to workers and enables quick and accurate judgment of the switch status of the subsea valve.

[0040] In addition, this utility model also provides a mud tank including the above-mentioned submarine valve switch indicator device.

[0041] The subsea valve switch indicator device provided by this utility model includes:

[0042] Mounting base plate 1 is provided on the upper tank surface 20 of the mud tank;

[0043] Indicator plate 2, one end of which is rotatably mounted on mounting base plate 1;

[0044] The rotating sleeve 5, which is sleeved on the upper part of the control screw 10 of the sea valve, has at least two driving parts on its outer periphery. The top surface of the rotating sleeve 5 is lower than the bottom surface of the mounting base plate 1. When the control screw 10 of the sea valve rotates, the rotating sleeve 5 drives the driving parts to rotate. The driving parts drive the indicator plate 2 to flip relative to the mounting base plate 1 so as to determine the opening and closing state of the sea valve according to the flipping direction of the indicator plate 2.

[0045] Please refer to Figure 1The top surface of the rotating sleeve 5 is lower than the bottom surface of the mounting base plate 1. In order to facilitate the observation of the flipping direction of the indicator plate 2 by the operators, the indicator plate 2 needs to be at least partially higher than the mounting base plate 1. At the same time, the indicator plate 2 is provided with a mating part below the mounting base plate 1 for cooperating with the drive part of the rotating sleeve 5.

[0046] When the control screw 10 of the subsea valve drives the rotating sleeve 5 to rotate, the driving part of the rotating sleeve 5 rotates synchronously and contacts the mating part of the indicator plate 2, thereby pushing the indicator plate 2 to rotate around the axis relative to the mounting base plate 1. Since the rotation direction of the control screw 10 of the subsea valve is opposite when it is open and closed, the corresponding rotation direction of the indicator plate 2 around the axis relative to the mounting base plate 1 is opposite. Therefore, the opening and closing state of the subsea valve can be determined according to the flipping direction of the indicator plate 2.

[0047] In this embodiment, the rotating sleeve 5 can rotate synchronously with the subsea valve control screw 10, and then drive the indicator plate 2 to rotate around the axis relative to the mounting base plate 1 through the drive unit. Thus, the switching state of the subsea valve can be determined according to the rotation direction of the indicator plate 2. This ensures that the subsea valve control screw 10 is not exposed on the upper tank surface 20 of the mud tank when not in the adjustment state, making the upper tank surface flat and unobstructed, reducing the risk of injury to workers. At the same time, the switching state of the subsea valve can be quickly and accurately determined by the rotation direction of the indicator plate 2, which improves the operating efficiency of the mud system and can effectively avoid operational errors caused by misjudging the switching state of the subsea valve.

[0048] Based on the above embodiments, the connection method between the indicator plate 2 and the mounting base plate 1 is defined. The mounting base plate 1 is provided in the indicator plate mounting groove 11 for the indicator plate 2. Both sides of the indicator plate mounting groove 11 are provided with ear plates 3. The indicator plate 2 is mounted between the ear plates 3 on both sides by means of a pin 6.

[0049] Please refer to Figure 4 The ear plate 3 is fixed on both sides of the indicator plate mounting groove 11. The pin 6 passes through the pin hole of one ear plate 3, the pin hole 221 of the indicator plate 2 and the pin hole of the other ear plate 3 in sequence, thereby realizing the hinge connection between the indicator plate 2 and the mounting base plate 1.

[0050] To prevent the pin 6 from coming out, it is preferable to set the pin 6 as a flat-headed pin with a hole. The platform at one end of the pin 6 can serve as an axial limiting structure and abut against the outer wall of the ear plate 3 on one side. The mounting hole at the other end of the pin 6 can be used to insert pins or the like to form an axial limit.

[0051] In addition, the mounting base plate 1 is provided with a central hole 12 for the mating part of the bottom valve control screw 10 to pass through. The shape and size of the central hole 12 are determined according to the needs of actual production.

[0052] Based on the above embodiments, the structure of the indicator plate 2 is further defined. The indicator plate 2 includes a circular indicator portion 21 and a connecting portion 22 for rotatably connecting with the mounting base plate 1. The connecting portion 22 is arranged in the radial direction of the circular indicator portion 21, and the connecting portion 22 is provided with a pin hole 221 for mounting the pin 6.

[0053] The connecting portion 22 is used for rotatable connection with the mounting base plate 1. The volume of the connecting portion 22 is generally smaller than the size of the circular indicator portion 21, such as... Figure 7 As shown, this is to reduce the size of the indicator plate mounting slot 11 on the mounting base plate 1.

[0054] The circular indicator 21 of the indicator plate 2 is used to determine the flipping direction of the indicator plate 2. The size of the circular indicator 21 is usually larger than the size of the connecting part 22 so that the operator can accurately determine the flipping direction of the indicator plate 2. Of course, the circular indicator 21 can also be replaced by a rectangular indicator or a triangular indicator. Its specific shape is not limited, as long as it can be convenient to determine the flipping direction of the circular indicator 21.

[0055] To facilitate determining the rotation direction of indicator 2, both sides of indicator 2 are provided with marking areas. These marking areas distinguish the front and back of indicator 2, thus determining its rotation direction. The marking areas on both sides of indicator 2 can be distinguished by color, text, symbols, etc. Figure 3 and Figure 4 As shown, they can also be distinguished by the structure of the two marking areas, for example, by setting circular protrusions in the front marking area of ​​the indicator plate 2.

[0056] In addition, a direction indicator can be provided to indicate the flipping direction of the indicator plate 2. The direction indicator is mounted on the mounting base plate 1. The direction indicator can be specifically configured as a direction indicator plate, a direction indicator rod, etc.

[0057] To prevent the indicator plate 2 from colliding with the mounting base plate 1 during the flipping process, preferably, the direction indicator can include an indicator baffle 4. The indicator baffle 4 is located at both ends of the pin 6 of the indicator plate 2 in the axial direction, and the two ends of the indicator baffle 4 are provided with flanges 41 at the ends that are away from the axis of the pin 6. The flanges 41 of the two indicator baffles 4 face opposite directions and are used to abut against the indicator plate 2 so that the indicator plate 2 is parallel to the mounting base plate 1.

[0058] Please refer to Figure 3 When the control screw 10 of the bottom valve is turned counterclockwise to open the bottom valve, the drive part on the left side of the indicator plate 2 drives the mating part of the indicator plate 2 to lift counterclockwise upward, and the indicator plate 2 abuts against the flange 41 of the left indicator baffle 4, while the flange 41 of the right indicator baffle 4 is exposed.

[0059] Conversely, please refer to Figure 4When the control screw 10 of the control subsea valve is turned clockwise to close the subsea valve, the drive part on the right side of the indicator plate 2 drives the mating part of the indicator plate 2 to lift counterclockwise upward, and the indicator plate 2 abuts against the flange 41 of the indicator baffle 4 on the right side, while the flange 41 of the indicator baffle 4 on the left side is exposed.

[0060] Based on the above embodiments, the structure of the rotating sleeve 5 is defined. The rotating sleeve 5 includes a circular ring 52. A control screw mounting plate 53 is provided inside the circular ring 52. The control screw mounting plate 53 is keyed to the bottom valve control screw 10. The mating part of the bottom valve control screw 10 for cooperating with the handwheel protrudes from the control screw mounting plate 53.

[0061] The outer periphery of the circular cylindrical ring 52 is provided with at least two driving parts in the radial direction.

[0062] The control screw mounting plate 53 is keyed to the sea valve control screw 10. This keyed connection ensures that the control screw mounting plate 53 rotates synchronously with the sea valve control screw 10, thereby driving the overall rotating sleeve 5 to rotate synchronously. The specific shape, structure, and dimensions of the keyed connection are determined based on the actual shape, structure, and dimensions of the sea valve control screw 10 in production. Figure 1 As shown, when the mating part at the top of the bottom valve control screw 10 for engaging with the handwheel is a square structure, the control screw mounting plate 53 is provided with a square control screw mounting hole, such as... Figure 10 As shown.

[0063] To prevent the circular ring 52 from affecting the engagement between the bottom valve control screw 10 and the handwheel, the engagement part of the bottom valve control screw 10 that engages with the handwheel protrudes from the control screw mounting plate 53. This facilitates the turning of the bottom valve control screw 10 after it engages with the handwheel, thereby opening or closing the bottom valve.

[0064] Considering that the rotation direction of the control screw 10 of the subsea valve is different when the subsea valve is opened and closed, in order to determine the on / off state of the control screw 10 of the subsea valve by the flipping direction of the indicator plate 2, at least two driving parts are evenly provided on the outer periphery of the circular ring 52 in the radial direction. The driving parts can be specifically set as baffles 51, baffles, etc.

[0065] To prevent the situation where the control screw 10 of the bottom valve is fully turned but the drive unit is not in contact with the indicator plate 2, it is preferable that the drive unit includes several baffles 51, which are evenly distributed along the circumference of the circular cylindrical ring 52. Figure 10 As shown, seven baffles 51 are evenly distributed on the outer periphery of the circular ring 52.

[0066] Based on the above embodiments, the connection method between the mounting base plate 1 and the upper tank surface 20 of the mud tank is defined. The mounting base plate 1 is provided with at least three bolt mounting holes for mounting fastening bolts. The mounting base plate 1 is connected to the upper tank surface 20 of the mud tank through fastening bolts, and the centers of the at least three bolt mounting holes are not collinear, so that the corresponding three fastening bolts can determine the plane on which the mounting base plate 1 is located, thereby tightly fixing the mounting base plate 1 above the upper tank surface 20 of the mud tank, so that the upper tank surface is flat and unobstructed, thereby reducing the risk of injury to workers.

[0067] It should be noted that the thickness of the mounting base plate 1 should not be too high, so as to avoid the formation of an obvious step structure between the upper tank surface 20 of the mud tank and the mounting base plate 1, which could lead to collisions and falls that could cause injury to workers.

[0068] In addition to the aforementioned subsea valve switch indicator, this utility model also provides a mud tank that includes the subsea valve switch indicator disclosed in the above embodiments. The mud tank includes a mud tank body and the subsea valve switch indicator disclosed in the above embodiments. The subsea valve switch indicator is located on the upper tank surface 20 of the mud tank body. For the structure of other parts of the mud tank, please refer to the prior art, which will not be described in detail here.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] The mud tank and its subsea valve switch indicator device provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A subsea valve switch indicator device, characterized by, The utility model relates to a mud tank indication device, including: The installation base plate (1) is arranged on the upper tank surface (20) of the mud tank body; The indicating plate (2) is rotatably installed on the installation base plate (1); The rotating sleeve (5) is sleeved on the upper portion of the subsea valve control screw rod (10), and the outer peripheral portion of the rotating sleeve (5) is provided with at least two driving portions, the top surface of the rotating sleeve (5) is lower than the bottom surface of the installation base plate (1), when the subsea valve control screw rod (10) rotates, the rotating sleeve (5) drives the driving portion to rotate, the driving portion drives the indicating plate (2) to overturn relative to the installation base plate (1), so as to determine the opening and closing state of the subsea valve according to the overturning direction of the indicating plate (2).

2. The subsea valve switch indicator of claim 1, wherein, The installation base plate (1) is provided with an indicating plate installation slot (11) for the indicating plate (2) to pass through, both sides of the indicating plate installation slot (11) are provided with an ear plate (3), and the indicating plate (2) is rotatably installed between the ear plates (3) on both sides through a pin shaft (6).

3. The subsea valve switch indicator of claim 1, wherein, The rotating sleeve (5) comprises a circular cylinder ring (52), the circular cylinder ring (52) is internally provided with a control screw rod installation plate (53), the control screw rod installation plate (53) is in key connection with the subsea valve control screw rod (10), and the cooperation portion of the subsea valve control screw rod (10) for cooperating with the hand wheel protrudes from the control screw rod installation plate (53); The outer peripheral portion of the circular cylinder ring (52) is provided with at least two driving portions in the radial direction.

4. The subsea valve switch indicator of claim 3, wherein, The driving portion comprises a plurality of blocking strips (51), and the blocking strips (51) are uniformly distributed along the circumferential direction of the circular cylinder ring (52).

5. The subsea valve switch indicator device of any of claims 1-4, wherein, The indicating plate (2) comprises a circular indicating portion (21) and a connecting portion (22) for rotatably connecting with the installation base plate (1), the connecting portion (22) is arranged along the radial direction of the circular indicating portion (21), and the connecting portion (22) is provided with a pin shaft hole (221) for installing the pin shaft (6).

6. The subsea valve switch indicator device of any one of claims 1-4, wherein, Both sides of the indicating plate (2) are provided with an identification area, and the identification area is used for distinguishing the front and back surfaces of the indicating plate (2), so as to determine the overturning direction of the indicating plate (2).

7. The subsea valve switch indicator device of any of claims 1-4, wherein, Further comprising a direction indicating piece for indicating the overturning direction of the indicating plate (2), and the direction indicating piece is arranged on the installation base plate (1).

8. The subsea valve switch indicator of claim 6, wherein, The direction indicating piece comprises an indicating baffle (4), the indicating baffle (4) is arranged at both ends in the axial direction of the pin shaft (6) of the indicating plate (2), one end of the indicating baffle (4) at both ends is provided with a flange (41) away from the axis of the pin shaft (6), the flanges (41) of the two indicating baffles (4) face opposite directions, and the flanges (41) are used for abutting against the indicating plate (2), so that the indicating plate (2) is parallel to the installation base plate (1).

9. The subsea valve switch indicator device of any of claims 1-4, wherein, The installation base plate (1) is provided with at least three bolt installation holes for installing fastening bolts, the installation base plate (1) is connected with the upper tank surface (20) of the mud tank body through the fastening bolts, and the centers of the at least three bolt installation holes are not collinear.

10. A mud pot, characterized by, including a mud tank and a subsea valve switch indicator device according to any one of claims 1-9, said subsea valve switch indicator device being located at an upper tank surface of said mud tank.

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