Drilling fluid separating device for well drilling

Abstract

The utility model discloses a drilling fluid separating device for well drilling, which comprises a centrifugal tank, a high-speed centrifugal mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, the high-speed centrifugal mechanism comprises a centrifugal pump, an upper cover, a centrifugal shaft, a connecting plate and an annular filter screen; the rapid clamping mechanism comprises a clamping rod, a flexible spiral piece, an inner fixing pipe, a tightening rod, a tightening piece and a clamping groove, the clamping auxiliary mechanism comprises a moving pipe, a rotating pipe, a threaded inner pipe and a fixing frame, and powerful power is provided through combination of the centrifugal pump and the centrifugal shaft, so that the annular filter screen can generate enough centrifugal force in high-speed rotation; the design that the clamping rods are combined with the inner fixing pipes and the tightening pieces allows the filter screen to be rapidly and stably installed and fixed, and therefore time and labor needed for maintaining and replacing the filter screen are greatly shortened, and labor needed for maintaining and replacing the filter screen is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, and more specifically, to a drilling fluid separation device for drilling. Background Art

[0002] The drilling fluid separator is a device used to separate solid particles and impurities from the drilling fluid recovered during the drilling process to maintain the cleanliness and performance of the drilling fluid. The drilling fluid separator is a key link in the drilling process. It is crucial to improve drilling efficiency and protect the environment by effectively separating solid particles and impurities and maintaining the performance of the drilling fluid. With the development of drilling technology, the efficiency and environmental performance of this separator are also constantly improving.

[0003] In the existing technology, firstly, the separation effect of some devices is poor, resulting in a significant reduction in the impurity separation effect, making the cleanliness of the drilling fluid unable to meet the requirements. Without the centrifugal force generated by high-speed rotation, the sedimentation rate of solid particles will slow down, thereby increasing the time required to treat the drilling fluid. Secondly, it becomes complicated and time-consuming to replace or clean these components of some devices. When emergency maintenance or replacement of components such as filters is required, the lack of a quick clamping mechanism will lead to an increase in the operation interruption time of the entire system, affecting the continuity of the drilling operation. Finally, the position of fixing and adjusting components such as filters in some devices will become inaccurate, affecting the filtering effect, which may cause the components to loosen or shift during operation, reducing the reliability of the equipment. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a drilling fluid separation device for drilling to solve the technical problems mentioned in the background technology, such as poor separation effect, and the replacement or cleaning of these components becoming complicated and time-consuming.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drilling fluid separation device for drilling, comprising a centrifugal tank, a high-speed centrifugal mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, the high-speed centrifugal mechanism comprising a centrifugal pump, an upper cover, a centrifugal shaft, a connecting plate and an annular filter screen, the centrifugal pump is installed at one end of the upper cover and connected to the centrifugal shaft, the upper cover is connected to the open end of the centrifugal tank, one end of the centrifugal shaft extends into the centrifugal tank, the annular filter screen is installed on the centrifugal shaft through the connecting plate, the quick clamping mechanism comprises a clamping rod, a flexible spiral sheet, an inner fixed tube, a tightening rod, a tightening sheet and a clamping groove, the clamping rod is movably installed inside the inner fixed tube, the flexible threaded sheet is installed at one end of the inner fixed tube, the tightening rod is installed on the inner side of the flexible threaded sheet, the tightening sheet is installed at one end of the tightening rod, the clamping groove is installed on the side of the clamping rod, the surface of the clamping groove is set to increase friction, and the tightening sheet can extend into the clamping groove to fix the clamping rod.

[0008] The utility model is further configured as follows: the clamping auxiliary mechanism includes a movable tube, a rotating tube, a threaded inner tube and a fixed frame; the rotating tube is rotatably installed on the outside of the inner fixed tube; the threaded inner tube is installed on the top of the rotating tube; the inner wall of the threaded inner tube is threadedly connected to the outer wall of the movable tube; the fixed frame is fixedly installed on the top of the inside of the movable tube, and one end of the flexible spiral sheet is connected to the fixed frame; the design of the rotating tube and the threaded inner tube allows precise position adjustment of the entire clamping system, which is crucial to ensure the correct placement of the filter.

[0009] The utility model is further configured such that a fixed bottom plate is provided on the side surface of one end of the inner fixed tube, and a support bearing is provided on the upper end surface of the fixed bottom plate, and one end of the rotating tube is cooperatively connected with the support bearing, and the configuration of the support bearing facilitates the stable rotation of the rotating tube.

[0010] The utility model is further configured such that a sand removal net and a mud removal net are provided on the inner side of the upper cover, and the sand removal net and the mud removal net are respectively installed on the sides of the annular filter screen. By installing the sand removal net and the mud removal net on the inner side of the upper cover, the filtering effect is further improved, and the cleanliness of the drilling fluid discharged from the centrifugal tank is ensured.

[0011] The utility model is further configured that side plates are provided on the sides of the sand removal net and the mud removal net, and the fixed bottom plate is fixedly installed on the side plates. The provision of the side plates facilitates the quick clamping mechanism to fix the sand removal net and the mud removal net through the side plates.

[0012] The utility model is further configured such that one end of the clamping rod extends into the lateral plate, and one end of the clamping rod extends through the lateral plate and is fixedly connected to the upper cover, and the clamping rod is locked by the tightening plate to realize the rapid loading and unloading of the sand removal net and the mud removal net inside the centrifugal tank.

[0013] The utility model is further configured that a liquid inlet pipe and a liquid outlet pipe are respectively provided on both sides of the centrifugal tank, and a liquid supply pump is provided on the liquid outlet pipe. A detachable cover is provided at the bottom of the centrifugal tank. The design of the liquid supply pump ensures smooth connection with the drilling equipment.

[0014] The utility model is further configured that a connecting pipe is provided at the other end of the liquid supply pump, and the connecting pipe is connected to the drilling equipment. The configuration of the connecting pipe facilitates the connection between the device and the drilling equipment.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a drilling fluid separation device for drilling, which has the following beneficial effects:

[0017] The utility model is provided with a high-speed centrifugal mechanism. The combination of the centrifugal pump and the centrifugal shaft provides powerful power, so that the annular filter can generate sufficient centrifugal force during high-speed rotation, effectively separating the solid particles from the liquid in the drilling fluid. The sand removal net and mud removal net installed on the inner side of the upper cover further improve the filtering effect and ensure the cleanliness of the drilling fluid discharged from the centrifugal tank.

[0018] The utility model is provided with a quick clamping mechanism. The design of the clamping rod combined with the inner fixed tube and the tightening plate allows the filter screen to be installed and fixed quickly and firmly, which greatly reduces the time and labor required for maintaining and replacing the filter screen. The addition of the flexible spiral plate provides more adjustment options, making the positioning of the clamping rod more accurate, and increasing the adaptability and versatility of the entire device.

[0019] The utility model is provided with a clamping auxiliary mechanism. The design of the rotating tube and the threaded inner tube allows precise position adjustment of the entire clamping system, which is crucial for ensuring the correct placement of the filter. The addition of the fixing frame provides additional support, ensuring the stability of the clamping system during operation and preventing displacement due to vibration or gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in the present utility model when it is not in use;

[0021] Figure 2 It is a schematic diagram of the structure of the exterior of the high-speed centrifugal mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure inside the high-speed centrifugal mechanism of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the quick clamping mechanism and the clamping auxiliary mechanism in the utility model;

[0024] Figure 5It is a schematic diagram of the internal structure of the quick clamping mechanism and the clamping auxiliary mechanism in the utility model.

[0025] In the figure: 1. centrifugal tank; 2. centrifugal pump; 3. upper cover; 4. centrifugal shaft; 5. connecting plate; 6. annular filter screen; 7. clamping rod; 8. flexible spiral sheet; 9. inner fixed pipe; 10. tightening rod; 11. tightening sheet; 12. clamping groove; 13. moving pipe; 14. rotating pipe; 15. threaded inner pipe; 16. fixing frame; 17. fixing bottom plate; 18. supporting bearing; 19. sand removal net; 20. mud removal net; 21. side plate; 22. liquid inlet pipe; 23. liquid outlet pipe; 24. liquid supply pump; 25. removable cover; 26. connecting pipe. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 , a drilling fluid separation device for drilling, comprising a centrifugal tank 1, a high-speed centrifugal mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, the high-speed centrifugal mechanism comprising a centrifugal pump 2, an upper cover 3, a centrifugal shaft 4, a connecting plate 5 and an annular filter 6, the centrifugal pump 2 is mounted on one end of the upper cover 3 and connected to the centrifugal shaft 4, the upper cover 3 is connected to the open end of the centrifugal tank 1, one end of the centrifugal shaft 4 extends into the centrifugal tank 1, the annular filter 6 is mounted on the centrifugal shaft 4 through the connecting plate 5, the quick clamping mechanism comprises a clamping rod 7, a flexible spiral sheet 8, an inner fixed tube 9, a tightening rod 10, a tightening sheet 11 and a clamping groove 12, the clamping rod 7 is movably mounted inside the inner fixed tube 9, the flexible threaded sheet is mounted at one end of the inner fixed tube 9, the tightening rod 10 is mounted on the inner side of the flexible threaded sheet, the tightening sheet 11 is mounted at one end of the tightening rod 10, the clamping groove 12 is mounted on the side of the clamping rod 7, the surface of the clamping groove 12 is set to increase friction, and the tightening sheet 11 can extend into the clamping groove 12 to fix the clamping rod 7.

[0030] In this embodiment, by starting the centrifugal pump 2, the function of the centrifugal pump 2 is to provide sufficient power to drive the drilling fluid through the annular filter 6. The centrifugal pump 2 is connected to the centrifugal shaft 4. The rotation of the centrifugal shaft 4 drives the annular filter 6 to rotate at high speed in the centrifugal tank 1. The centrifugal force generated by the high-speed rotation separates the solid particles in the drilling fluid through the annular filter 6, and the clean drilling fluid is discharged through the liquid outlet pipe 23. The inner side of the upper cover 3 is provided with a sand removal net 19 and a mud removal net 20, which further enhances the separation effect and ensures the drilling fluid. Cleanliness is improved, and quick maintenance and loading and unloading of the sand removal net 19 and the mud removal net 20 are achieved. The clamping rod 7 can be movably installed inside the inner fixed tube 9. Through the cooperation of the flexible spiral sheet 8 and the tightening rod 10, the tightening sheet 11 can be extended into the clamping groove 12 on the side of the clamping rod 7 to achieve quick fixation. When it is necessary to release or adjust the position of the clamping rod 7, the tightening sheet 11 can be withdrawn from the clamping groove 12 to allow the clamping rod 7 to move. This mechanism enables the sand removal net 19 and the mud removal net 20 to be quickly loaded and unloaded inside the centrifugal tank 1, thereby improving the efficiency of maintenance and replacement.

[0031] The clamping auxiliary mechanism includes a moving tube 13, a rotating tube 14, a threaded inner tube 15 and a fixing frame 16. The rotating tube 14 is rotatably installed on the outside of the inner fixed tube 9, the threaded inner tube 15 is installed on the top of the rotating tube 14, the inner wall of the threaded inner tube 15 is threadedly connected to the outer wall of the moving tube 13, the fixing frame 16 is fixedly installed on the top of the inside of the moving tube 13, and one end of the flexible spiral sheet 8 is connected to the fixing frame 16.

[0032] In this embodiment, the rotating tube 14 is rotatably installed on the outside of the inner fixed tube 9 and is connected with the support bearing 18. By rotating the rotating tube 14 to drive the threaded inner tube 15 to rotate, the precise position adjustment of the movable tube 13 can be achieved. The fixed frame 16 is fixedly installed on the top of the inside of the movable tube 13 and is connected to one end of the flexible spiral sheet 8. The movement of the movable tube 13 compresses the flexible spiral sheet 8, so that the clamping rod and the clamping sheet are clamped inward. Conversely, the clamping sheet is loosened to ensure the stability and reliability of the clamping structure during operation.

[0033] See also Figure 1-5As a supplementary embodiment of a drilling fluid separation device for drilling of a high-speed centrifugal mechanism, a quick clamping mechanism and a clamping auxiliary mechanism: a fixed bottom plate 17 is provided on the side surface of one end of the inner fixed tube 9, and a support bearing 18 is provided on the upper end surface of the fixed bottom plate 17, and one end of the rotating tube 14 is matched and connected with the support bearing 18, a sand removal net 19 and a mud removal net 20 are provided on the inner side surface of the upper cover 3, and the sand removal net 19 and the mud removal net 20 are respectively installed on the side surfaces of the annular filter screen 6, and the side surfaces of the sand removal net 19 and the mud removal net 20 are provided with lateral plates 21, the fixed bottom plate 17 is fixedly mounted on the lateral plate 21, one end of the clamping rod 7 is fixedly connected with the upper cover 3 by extending into the lateral plate 21, and the clamping rod 7 is locked by the tightening plate 11 to realize the quick loading and unloading of the sand removal net 19 and the mud removal net 20 inside the centrifugal tank 1, and the two sides of the centrifugal tank 1 are respectively provided with a liquid inlet pipe 22 and a liquid outlet pipe 23, and the liquid outlet pipe 23 is provided with a liquid supply pump 24, and a removable cover 25 is provided at the bottom of the centrifugal tank 1, and the other end of the liquid supply pump 24 is provided with a connecting pipe 26, and the connecting pipe 26 is connected to the drilling equipment.

[0034] More specifically, the design of the centrifuge tank 1 and the easy-to-operate liquid inlet pipe 22 and liquid outlet pipe 23, as well as the detachable bottom cover, are all intended to improve the cleaning and maintenance efficiency of the equipment. The design of the liquid supply pump 24 and the connecting pipe 26 ensures a smooth connection with the drilling equipment, which not only optimizes the fluid dynamics efficiency but also reduces energy consumption. The addition of the flexible spiral blade 8 provides more adjustment options, making the positioning of the clamping rod 7 more accurate, increasing the adaptability and versatility of the entire device, and the sand removal net 19 and mud removal net 20 installed on the inner side of the upper cover 3 further improve the filtering effect, thereby ensuring the cleanliness of the drilling fluid discharged from the centrifuge tank 1.

[0035] In summary, when the overall equipment is in use or running: when the high-speed centrifugal mechanism is required to operate, the centrifugal pump 2 is started. The function of the centrifugal pump 2 is to provide sufficient power to drive the drilling fluid through the annular filter 6. The centrifugal pump 2 is connected to the centrifugal shaft 4. The rotation of the centrifugal shaft 4 drives the annular filter 6 to rotate at high speed in the centrifugal tank 1. The centrifugal force generated by this high-speed rotation separates the solid particles in the drilling fluid through the annular filter 6, and the clean drilling fluid is discharged through the liquid outlet pipe 23. The inner side of the upper cover 3 is provided with a sand removal net 19 and a mud removal net 20, which further enhances the separation effect and ensures the cleanliness of the drilling fluid.

[0036] When the operation of the quick clamping mechanism is required, the sand removal net 19 and the mud removal net 20 can be quickly maintained and loaded and unloaded. The clamping rod 7 can be movably installed inside the inner fixed tube 9. Through the cooperation of the flexible spiral sheet 8 and the tightening rod 10, the tightening sheet 11 can be extended into the clamping groove 12 on the side of the clamping rod 7 to achieve quick fixation. When it is necessary to release or adjust the position of the clamping rod 7, the tightening sheet 11 can be withdrawn from the clamping groove 12 to allow the clamping rod 7 to move. This mechanism enables the sand removal net 19 and the mud removal net 20 to be quickly loaded and unloaded inside the centrifugal tank 1, thereby improving the efficiency of maintenance and replacement.

[0037] When the operation of the clamping auxiliary mechanism is required, the rotating tube 14 is rotatably installed on the outside of the inner fixed tube 9 and is connected with the supporting bearing 18. By rotating the rotating tube 14 to drive the threaded inner tube 15 to rotate, the precise position adjustment of the moving tube 13 can be achieved. The fixing frame 16 is fixedly installed on the top of the inside of the moving tube 13 and is connected to one end of the flexible spiral sheet 8. The movement of the moving tube 13 compresses the flexible spiral sheet 8, so that the clamping rod and the clamping sheet are clamped inwardly. Conversely, the clamping sheet is loosened to ensure the stability and reliability of the clamping structure during operation.

[0038] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A drilling fluid separation device for drilling, comprising a centrifuge tank (1), a high-speed centrifugal mechanism, a quick clamping mechanism and a clamping auxiliary mechanism, wherein: The high-speed centrifugal mechanism comprises a centrifugal pump (2), an upper cover (3), a centrifugal shaft (4), a connecting plate (5) and an annular filter screen (6); the centrifugal pump (2) is mounted on one end of the upper cover (3) and connected to the centrifugal shaft (4); the upper cover (3) is connected to the open end of the centrifugal tank (1); one end of the centrifugal shaft (4) extends into the centrifugal tank (1); the annular filter screen (6) is mounted on the centrifugal shaft (4) via the connecting plate (5); the quick clamping mechanism comprises a clamping rod (7), a flexible spiral sheet (8), an inner fixed tube (9) and a plurality of inner fixed tubes (11). ), a tightening rod (10), a tightening sheet (11) and a clamping groove (12), the clamping rod (7) is movably mounted inside the inner fixed tube (9), the flexible threaded sheet is mounted at one end of the inner fixed tube (9), the tightening rod (10) is mounted on the inner side surface of the flexible threaded sheet, the tightening sheet (11) is mounted at one end of the tightening rod (10), the clamping groove (12) is mounted on the side surface of the clamping rod (7), the surface of the clamping groove (12) is designed to increase friction, and the tightening sheet (11) can extend into the clamping groove (12) to fix the clamping rod (7).

2. A drilling fluid separation device for drilling according to claim 1, characterized in that: The clamping auxiliary mechanism comprises a moving tube (13), a rotating tube (14), a threaded inner tube (15) and a fixing frame (16); the rotating tube (14) is rotatably mounted on the outside of the inner fixed tube (9); the threaded inner tube (15) is mounted on the top of the rotating tube (14); the inner wall of the threaded inner tube (15) is threadedly connected to the outer wall of the moving tube (13); the fixing frame (16) is fixedly mounted on the top of the inside of the moving tube (13); and one end of the flexible spiral sheet (8) is connected to the fixing frame (16).

3. The drilling fluid separation device for drilling according to claim 1, characterized in that: A fixed bottom plate (17) is provided on one end side of the inner fixed tube (9), and a support bearing (18) is provided on the upper end surface of the fixed bottom plate (17), and one end of the rotating tube (14) is matched and connected to the support bearing (18).

4. The drilling fluid separation device for drilling according to claim 1, characterized in that: The inner side surface of the upper cover (3) is provided with a sand removal net (19) and a mud removal net (20), and the sand removal net (19) and the mud removal net (20) are respectively installed on the side surfaces of the annular filter screen (6).

5. A drilling fluid separation device for drilling according to claim 4, characterized in that: The sides of the sand removal net (19) and the mud removal net (20) are provided with lateral plates (21), and the fixed bottom plate (17) is fixedly mounted on the lateral plates (21).

6. The drilling fluid separation device for drilling according to claim 1, characterized in that: One end of the clamping rod (7) extends through the lateral plate (21), and the end of the clamping rod extending through the lateral plate (21) is fixedly connected to the upper cover (3), and the clamping rod (7) is locked by the tightening plate (11) to realize the rapid loading and unloading of the sand removal net (19) and the mud removal net (20) inside the centrifugal tank (1).

7. The drilling fluid separation device for drilling according to claim 1, characterized in that: A liquid inlet pipe (22) and a liquid outlet pipe (23) are respectively provided on both sides of the centrifugal tank (1), and a liquid supply pump (24) is provided on the liquid outlet pipe (23). A detachable cover (25) is provided at the bottom of the centrifugal tank (1).

8. A drilling fluid separation device for drilling according to claim 7, characterized in that: The other end of the liquid supply pump (24) is provided with a connecting pipe (26), and the connecting pipe (26) is connected to the drilling equipment.

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