A drilling fluid cooling device

Abstract

The utility model discloses a drilling fluid cooling device, including support frame, install the cooling box in support frame, the surface of cooling box is installed with the connecting pipe, is equipped with auxiliary device on support frame, and auxiliary device includes servo motor, and the output of servo motor is connected with line wheel, and the traction rope is wound on line wheel, and the free end of traction rope is connected with the support pole in cooling box, and a plurality of stirring vane are equipped on support pole. The utility model solves the problem that the cooling liquid in cooling box carries out the cooling to the drilling fluid in connecting pipe after a long time, and the temperature of the cooling liquid around connecting pipe is higher, leads to the problem of the unsatisfactory cooling effect. The utility model can effectively improve the flowability of the cooling liquid in the cooling box, and then improve the cooling efficiency of the cooling liquid to the drilling fluid, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of drilling fluid cooling technology, and in particular to a drilling fluid cooling device. Background Technology

[0002] A cooler is a device used to lower the temperature of an object, typically by removing heat from the object and releasing it into the surrounding environment. Coolers are used in many different applications, including air conditioning systems, refrigerators, automotive engines, and cooling processes in industrial production, each with different operating principles and structural designs. In offshore drilling operations, coolers are commonly used to control the temperature of drilling fluids.

[0003] When controlling high-temperature drilling fluid, the drilling fluid flows in the connecting pipe. When it flows to the cooling tank, the coolant in the cooling tank cools the drilling fluid, thereby controlling the temperature of the drilling fluid. However, because the coolant in the cooling tank cools the drilling fluid in the connecting pipe for a long time, the temperature of the coolant around the connecting pipe is high, which will lead to an unsatisfactory cooling effect. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, this utility model provides a drilling fluid cooling device.

[0005] This utility model is achieved by adopting the following technical solution.

[0006] A drilling fluid cooling device includes a support frame, a cooling box installed inside the support frame, a connecting pipe installed on the surface of the cooling box, an auxiliary device on the support frame, the auxiliary device including a servo motor, the output end of the servo motor connected to a reel, a traction rope wound on the reel, the free end of the traction rope connected to a support rod located inside the cooling box, and a plurality of stirring blades on the support rod.

[0007] Furthermore, the cooling box is equipped with a round rod, and the end of the support rod is sleeved on the round rod and moves up and down along the round rod.

[0008] Furthermore, a spring is fitted onto the round rod, with both ends of the spring connected to the end of the support rod and the inner wall of the cooling box, respectively.

[0009] Furthermore, an L-shaped rod is connected to the surface of the servo motor, and a limiting ring is connected to the unused end of the L-shaped rod, through which a traction rope passes.

[0010] Furthermore, the stirring blade has several round holes.

[0011] Furthermore, a replacement device is provided at the connection between the connecting pipe and the liquid supply pump. The replacement device includes a retaining ring and a sealing ring fixed on the retaining ring. The retaining ring is detachably connected to the connecting pipe.

[0012] Furthermore, the surface of the fixing ring is provided with a relief groove, and the surface of the connecting pipe is threaded with a lead screw, which passes through the relief groove to fasten the fixing ring and the connecting pipe.

[0013] Furthermore, the end of the lead screw is provided with a handle.

[0014] Furthermore, the handle is connected to a rope, and the free end of the rope is connected to a connecting tube.

[0015] The present invention has achieved the following beneficial effects.

[0016] (1) By setting up an auxiliary device, when the cooling box is used to cool the drilling fluid in the connecting pipe, the servo motor winds up the traction rope to drive the support rod in the cooling box to move. The stirring blade on the support rod will stir the coolant in the cooling box, thereby stirring the coolant around the connecting pipe and making it flow, which improves the fluidity of the coolant in the cooling box and thus improves the cooling efficiency of the coolant on the drilling fluid.

[0017] (2) By setting up a replacement device, when replacing the sealing ring at the connecting pipe, the worker can disassemble and fix the fixing ring by using a screw, so that the sealing ring can be replaced quickly, which improves the work efficiency of the worker to a certain extent. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the auxiliary device of this utility model;

[0020] Figure 3 This is a schematic diagram illustrating the structure of the stirring blade of this utility model;

[0021] Figure 4 This is a schematic diagram illustrating the thread reel structure of this utility model;

[0022] Figure 5 This is an exploded view of the replacement device of this utility model;

[0023] Figure 6 for Figure 1 Enlarged view of section A.

[0024] In the diagram: 1. Support frame; 2. Cooling box; 3. Connecting pipe; 4. Auxiliary device; 401. Servo motor; 402. Threaded reel; 403. Traction rope; 404. L-bar; 405. Limiting ring; 406. Round rod; 407. Support rod; 408. Spring; 409. Stirring blade; 410. Round hole; 5. Replacement device; 51. Fixing ring; 52. Lead screw; 53. Relief groove; 54. Handle; 55. Rope; 6. Sealing ring. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0026] like Figure 1-6 As shown, a drilling fluid cooling device includes a support frame 1, a cooling box 2 installed on the inner wall of the support frame 1, a connecting pipe 3 installed on the surface of the cooling box 2, an auxiliary device 4 provided on the surface of the support frame 1, and a replacement device 5 provided on the surface of the connecting pipe 3.

[0027] Specifically, the auxiliary device 4 includes a servo motor 401, which is fixedly connected to the support frame 1. A reel 402 is fixedly connected to the output end of the servo motor 401. A traction rope 403 is wound around the inner wall of the reel 402. A support rod 407 is fixedly connected to one end of the traction rope 403. The support rod 407 is located inside the cooling box 2. Several stirring blades 409 are fixedly connected to the surface of the support rod 407. Several round holes 410 are opened on the surface of the stirring blades 409. During offshore drilling operations, a fluid supply pump (not shown in the diagram) draws drilling fluid into connecting pipe 3. As the drilling fluid flows through cooling tank 2, the coolant in cooling tank 2 cools and lowers the drilling fluid. Subsequently, the drilling fluid is pressurized and supplied to the wellhead by another fluid supply pump (not shown in the diagram) at the other end of connecting pipe 3 to cool and clean the drill bit. After prolonged cooling of the drilling fluid, servo motor 401 is activated, driving reel 402 to rotate and winding traction rope 403. At this time, spring 408 is in a stretched state, driving... The support rod 407 moves along the round rod 406, and then the servo motor 401 reverses, causing the support rod 407 to fall. When the support rod 407 drives the stirring blade 409 to move, it will agitate the coolant in the cooling tank 2. The round hole 410 on the stirring blade 409 allows the stirring blade 409 to agitate the coolant more quickly, so that the hotter coolant around the connecting pipe 3 mixes with the cooler coolant, effectively reducing the temperature of the coolant around the connecting pipe 3 and improving the efficiency of the coolant in cooling the drilling fluid to a certain extent.

[0028] A round rod 406 is fixedly connected to the inner wall of the cooling box 2. The round rod 406 is slidably connected to the support rod 407. The round rod 406 restricts the movement path of the support rod 407 and limits the support rod 407 to ensure stable movement. At the same time, the round rod 406 also supports the spring 408 to prevent the spring 408 from deforming.

[0029] A spring 408 is fixedly connected to the surface of the support rod 407. The other end of the spring 408 is fixedly connected to the cooling box 2. The spring 408 is sleeved on the arc surface of the round rod 406. The spring 408 will contract and drive the support rod 407 to move quickly. The spring 408 will cause the support rod 407 to quickly return to its original position.

[0030] The surface of the servo motor 401 is fixedly connected to an L-rod 404. One end of the L-rod 404 is fixedly connected to a limit ring 405. The limit ring 405 on the L-rod 404 limits the traction rope 403 to prevent the traction rope 403 from disengaging from the reel 402 due to rapid winding.

[0031] The replacement device 5 includes a retaining ring 51, which is detachably installed on the connecting pipe 3. The retaining ring 51 is fixedly connected to the sealing ring 6. A relief groove 53 is formed on the surface of the retaining ring 51. A threaded rod 52 is threaded onto the surface of the connecting pipe 3, and the size of the threaded rod 52 is adapted to the size of the relief groove 53. When the connecting pipe 3 is connected to the fluid supply pump (not shown in the figure) for a long time, the sealing ring 6 at the connecting pipe 3 needs to be replaced to prevent damage to the sealing ring 6 at the connecting pipe 3 from causing unstable connection between the connecting pipe 3 and the fluid supply pump (not shown in the figure), which could lead to drilling fluid leakage. Remove the threaded rod 52 from the connecting pipe 3, remove the retaining ring 51, install the new sealing ring 6 with the retaining ring 51 on the connecting pipe 3, rotate the threaded rod 52, insert the threaded rod 52 into the relief groove 53, and the retaining ring 51 can be fixed. The sealing ring 6 is then replaced.

[0032] A handle 54 is fixedly connected to one end of the lead screw 52. The operator can rotate the lead screw 52 by using the handle 54, which makes it convenient for the operator to control the rotation of the lead screw 52. A rope 55 is fixedly connected to the surface of the handle 54, and the other end of the rope 55 is fixedly connected to the connecting pipe 3. The rope 55 will restrain the lead screw 52 to prevent it from being lost when it is removed from the connecting pipe 3.

[0033] The working principle of this utility model is as follows:

[0034] During offshore drilling operations, a fluid supply pump (not shown in the diagram) draws drilling fluid into connecting pipe 3. As the drilling fluid flows through cooling tank 2, the coolant in cooling tank 2 cools and lowers the drilling fluid temperature. Subsequently, the drilling fluid is pressurized and supplied to the wellhead by another fluid supply pump (not shown in the diagram) at the other end of connecting pipe 3 to cool and clean the drill bit. After a prolonged cooling period, servo motor 401 is activated, driving reel 402 to rotate and winding traction rope 403. Limiting ring 405 on L-rod 404 limits traction rope 403 to prevent rapid winding from causing traction rope 403 to detach from reel 402. At this time, spring 408 is in a stretched state, driving support rod 407 to move along round rod 406. Round rod 406 restricts the movement of support rod 407. The moving path limits the movement of the support rod 407, ensuring its stable movement. Simultaneously, the round rod 406 supports the spring 408, preventing deformation. Subsequently, the servo motor 401 reverses, causing the support rod 407 to fall. The spring 408 contracts, driving the support rod 407 to move rapidly. The spring 408 then quickly resets the support rod 407. As the support rod 407 moves the stirring blade 409, it agitates the coolant in the cooling tank 2. The round hole 410 on the stirring blade 409 allows for more rapid mixing of the coolant, mixing the hotter coolant around the connecting pipe 3 with the cooler coolant. This effectively reduces the temperature of the coolant around the connecting pipe 3, improving the efficiency of the coolant in cooling the drilling fluid to some extent.

[0035] When the connecting pipe 3 is connected to the fluid supply pump (not shown in the figure) for an extended period, the sealing ring 6 at the connecting pipe 3 needs to be replaced to prevent damage to the sealing ring 6, which could lead to unstable connection between the connecting pipe 3 and the fluid supply pump (not shown in the figure) and thus drilling fluid leakage. The operator rotates the screw 52 using handle 54 (handle 54 allows for easy rotation of the screw 52) to remove it from the connecting pipe 3. The rope 55 secures the screw 52 to prevent it from being lost during removal. Then, the retaining ring 51 is removed, and the new sealing ring 6 with the retaining ring 51 is installed on the connecting pipe 3. Rotating the screw 52 inserts it into the relief groove 53, thus securing the retaining ring 51. The replacement of the sealing ring 6 is now complete.

[0036] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully described in the technical requirements.

Claims

1. A drilling fluid cooling device, comprising a support frame (1), a cooling tank (2) installed inside the support frame (1), and a connecting pipe (3) installed on the surface of the cooling tank (2), characterized in that: An auxiliary device (4) is provided on the support frame (1). The auxiliary device (4) includes a servo motor (401). The output end of the servo motor (401) is connected to a spool (402). A traction rope (403) is wound on the spool (402). The free end of the traction rope (403) is connected to a support rod (407) located in the cooling box (2). Several stirring blades (409) are provided on the support rod (407).

2. The drilling fluid cooling device according to claim 1, characterized in that: The cooling box (2) is provided with a round rod (406), and the end of the support rod (407) is sleeved on the round rod (406) and moves up and down along the round rod (406).

3. The drilling fluid cooling device according to claim 2, characterized in that: A spring (408) is fitted on the round rod (406), and the two ends of the spring (408) are connected to the end of the support rod (407) and the inner wall of the cooling box (2), respectively.

4. The drilling fluid cooling device according to claim 1, characterized in that: The surface of the servo motor (401) is connected to an L-rod (404), the unused end of the L-rod (404) is connected to a limiting ring (405), and the traction rope (403) passes through the limiting ring (405).

5. A drilling fluid cooling device according to claim 1, characterized in that: The stirring blade (409) has several round holes (410).

6. A drilling fluid cooling device according to claim 1, characterized in that: A replacement device (5) is provided at the connection between the connecting pipe (3) and the liquid supply pump. The replacement device (5) includes a fixing ring (51) and a sealing ring (6) fixed on the fixing ring (51). The fixing ring (51) is detachably connected to the connecting pipe (3).

7. A drilling fluid cooling device according to claim 6, characterized in that: The surface of the fixing ring (51) is provided with a relief groove (53), and the surface of the connecting pipe (3) is threaded with a lead screw (52). The lead screw (52) passes through the relief groove (53) to fasten the fixing ring (51) and the connecting pipe (3).

8. A drilling fluid cooling device according to claim 7, characterized in that: The end of the lead screw (52) is provided with a handle (54).

9. A drilling fluid cooling device according to claim 8, characterized in that: The handle (54) is connected to the rope (55), and the unused end of the rope (55) is connected to the connecting tube (3).

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