Quick-connect fittings and quick-connect devices for deep-sea drilling flow solids delivery jumper hoses

Abstract

This invention discloses a quick-connect component and a quick-connect device for deep-sea drilling fluid solids transport jumper hoses, relating to the technical field of marine drilling construction technology and solutions. The device includes a connecting base with a mating surface; it also includes an installation part, an operating frame, and a pressure plate frame. The installation part includes two bearing seats and two guide pins. The mounting block of the operating frame is rotatably connected to the two bearing seats via a rotating shaft, which extends out of the bearing seats and has a connecting block fixed at its end. A ratchet is fitted onto the rotating shaft. A pawl is rotatably connected to the mounting block, and a spring clip is fixed to the mounting block. A spring clip release structure is connected to the operating frame. A mating clamping gap is formed between the pressure plate frame and the mating surface. The quick-connect device includes the aforementioned quick-connect component and a detachable connecting body. The quick-connect device provided by this invention enables rapid connection and disconnection of mud return pipelines via an underwater robot, effectively reducing the complexity of deep-sea underwater connection devices and improving the success rate of establishing a sealed connection.

Description

Technical Field

[0001] This invention relates to the field of marine drilling construction technology and solutions, and more specifically to a quick connection device for fluid solids transport jumper hoses used in deep-sea dual-gradient drilling systems. Background Technology

[0002] The deep-sea dual-gradient drilling system is a solution for recovering drilling fluid in offshore drilling, effectively addressing the pollution caused by directly discharging drilling fluid into the sea and the problems of increased vessel size and operating costs resulting from using risers for drilling fluid recovery. This technology eliminates the use of conventional risers in offshore drilling; the drill pipe is directly exposed to seawater, and a subsea lift pump draws drilling fluid containing cuttings into the wellhead module and returns it to the drilling vessel via a return string.

[0003] The return tubing string, serving as the channel for drilling fluid to return to the drilling vessel, needs to be connected to the wellhead via flexible jumper hoses. The underwater connection of these jumper hoses requires a submersible robot for connection and disconnection to establish a closed-loop circulation of the drilling fluid. The complex environment of offshore drilling necessitates that this device not only have a self-locking anti-disconnection function but also possess rapid disconnection capabilities and ensure a sealed connection.

[0004] Therefore, how to provide a process and solution for the rapid connection and disconnection of crossover hoses for deep-sea dual-gradient drilling systems is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a quick connector and a quick connection device for deep-sea drilling flow solids transport jumper hose, aiming to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A quick-connector includes a connecting base having a mating surface; and further includes:

[0008] The mounting part includes two bearing seats and two guide pins. The two bearing seats are respectively fixed to the top two sides of the connecting base opposite to the mating surface, and the two guide pins are respectively fixed to the bottom two sides of the mating surface.

[0009] A control frame is arranged between two bearing seats. A mounting block of the control frame is rotatably connected to each of the two bearing seats via a rotating shaft. The rotating shaft extends out of the bearing seats and has a connecting block fixed at its end. A ratchet is fitted onto the rotating shaft, and the ratchet engages with the connecting base to restrict its rotation. A pawl is rotatably connected to the mounting block, abutting against the ratchet teeth. A spring clip is fixed to the mounting block, and its movable end presses the pawl against the ratchet teeth. A spring clip release structure is connected to the control frame.

[0010] The pressure plate frame forms a clamping gap with the mating surface. The top sides of the pressure plate frame are rotatably connected to the connecting block by pins. Limiting slots are opened at the bottom sides of the pressure plate frame, and the two limiting slots are slidably connected to the outside of the two guide pins.

[0011] Through the above technical solution, the quick connector provided by the present invention forms an adjustable connection structure between the pressure plate frame and the connecting base through the connecting block and guide pin. The position of the adjustable structure of the pressure plate frame is restricted by the cooperation of the operating frame, ratchet, ratchet tooth and spring piece, thereby controlling the size of the docking clamping gap. This allows the connecting base and the pressure plate frame to form a cooperating clamping structure, which has the advantage of quick connection. At the same time, the spring piece release structure can release the spring piece for reset operation. The overall structure is simple, the operation and control are convenient, and the use is convenient and reliable.

[0012] Preferably, in the aforementioned quick-connector, the control frame further includes connecting rods, a crossbeam, guide rods, and a sliding beam. There are two connecting rods, one end of which is fixed to one of the two mounting blocks. The crossbeam is fixed to the other ends of the two connecting rods. There are two guide rods, each fixed to the side of the crossbeam facing away from the connecting rods. The end of each guide rod away from the crossbeam has a diameter-reducing section. Both ends of the sliding beam are slidably connected to the diameter-reducing section, and the sliding beam is connected to the spring release structure. The sequential arrangement of the connecting rods, crossbeam, guide rods, and sliding beam ensures the control frame has a certain length, satisfying the lever principle and making operation of the control frame easier. Simultaneously, the sliding control of the sliding beam allows for control of the spring release structure, simplifying operation.

[0013] Preferably, in the above-mentioned quick-connect component, the spring release structure includes an active pull ring fixed to the sliding beam and a driven pull ring fixed to the spring. A guide ring is fixed on the mounting block. One end of the cable is fixed to the active pull ring, and the other end is fixed to the driven pull ring. The cable passes through the guide ring. Controlling the release by using the pulling motion of the cable is not only simple in structure but also convenient and reliable in use.

[0014] Preferably, in the above-mentioned quick-connect fitting, the top edge of the connecting base is provided with a clearance groove, and the mounting block is located within the clearance groove. The clearance groove prevents positional interference when the control frame is in motion.

[0015] Preferably, in the above-mentioned quick-connect fitting, the axial edge of the ratchet facing the connecting base is a plane, and the plane fits snugly against the connecting base. During ratchet manufacturing, one side is machined into a plane, so that when the ratchet is fitted onto the rotating shaft, it can directly form a limiting position with the connecting base, restricting rotation, making the connection simple and convenient.

[0016] Preferably, in the above-mentioned quick-connect component, the pressure plate frame includes two side plates and a pressure plate fixed between the two side plates; a pin is fixed to the top of each side plate, the pin being rotatably connected to the connecting block; and a limiting groove is provided at the bottom of each side plate; a mating clamping gap is formed between the pressure plate and the mating surface. The pressure plate frame has a simple structure, is easy to connect, and can quickly clamp and connect the connected components through the mating clamping gap formed between the pressure plate and the mating surface.

[0017] Preferably, in the above-mentioned quick connector, the pressure plate is formed with a U-shaped groove. The U-shaped groove design facilitates the insertion of the connector.

[0018] The present invention also provides a quick connection device for a deep-sea drilling flow solids delivery jumper hose, comprising a quick connector and a detachable connector:

[0019] The connecting substrate includes a mating substrate, the mating surface is formed on one side of the mating substrate, a substrate pipe is fixed on the other side of the mating substrate, a substrate flange is fixed at one end of the substrate pipe away from the mating substrate, and a through hole communicating with the substrate pipe is provided on the mating substrate.

[0020] The detachable connector includes a docking pipe, and a first docking flange and a second docking flange respectively fixed at both ends of the docking pipe. The first docking flange is clamped between the docking surface and the pressure plate frame, so that the docking pipe communicates with the through hole.

[0021] Through the above technical solution, the quick connection device provided by the present invention is applied in the deep-sea dual-gradient drilling system for quick connection of fluid solids transport jumper hoses. During deep-sea operations, the underwater robot picks up the detachable connector in the water, puts the first docking flange into the docking clamping gap, and moves the control frame to make the pressure plate frame press the first docking flange. The base flange is installed on the fixed equipment, and at this time, a fluid solids transport connection channel is established. The operation is simpler and more convenient, and it is suitable for deep-sea operations.

[0022] Preferably, in the above-mentioned quick-connect device for deep-sea drilling flow solids transport jumper hoses, a sealing ring is fixed to the end face of the first mating flange that mates with the mating face. The sealing ring improves the sealing performance after the pipeline connection.

[0023] Preferably, in the above-mentioned quick-connect device for deep-sea drilling flow solids transport bridging hoses, a robot pick-up handle is fixed to the outer wall of the docking pipe. The robot pick-up handle facilitates the operation of the underwater robot.

[0024] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a quick-connect fitting and a quick-connect device for deep-sea drilling flow solids transport jumper hose, which has the following beneficial effects:

[0025] 1. The quick connector provided by this invention forms an adjustable connection structure between the pressure plate frame and the connecting base through the connecting block and guide pin. The position of the adjustable structure of the pressure plate frame is restricted by the cooperation of the operating frame, ratchet, ratchet tooth and spring piece, thereby controlling the size of the mating clamping gap. This allows the connecting base and the pressure plate frame to form a mating clamping structure, which has the advantage of quick connection. At the same time, the spring piece release structure can release the spring piece for reset operation. The overall structure is simple, the operation and control are convenient, and the use is convenient and reliable.

[0026] 2. The quick connection device provided by this invention is applied in a deep-sea dual-gradient drilling system for quick connection of fluid solids transport jumper hoses. During deep-sea operations, the underwater robot picks up the detachable connector in the water, places the first docking flange into the docking clamping gap, and moves the control frame to make the pressure plate frame press the first docking flange. The base flange is installed on the fixed equipment, and at this time, a fluid solids transport connection channel is established. The operation is simpler and more convenient, and it is suitable for deep-sea operations.

[0027] 3. The quick connection device provided by this invention can quickly connect and disconnect the mud return pipeline through an underwater robot, effectively reducing the complexity of deep-sea underwater connection devices and improving the success rate of establishing a sealed connection. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 The attached figure is a structural schematic diagram of the quick-connect device for deep-sea drilling flow solids transport bridging hose provided by the present invention;

[0030] Figure 2 The attached figure is a schematic diagram of the structure of the connecting substrate provided by the present invention;

[0031] Figure 3 The attached figure is a structural schematic diagram of the pressure plate frame provided by the present invention;

[0032] Figure 4 The attached figure is a schematic diagram of the ratchet and pawl structure provided by the present invention.

[0033] Figure 5 The attached figure is a schematic diagram of the ratchet structure provided by the present invention;

[0034] Figure 6 The attached figure is a partial structural schematic diagram of the control frame provided by the present invention;

[0035] Figure 7 The attached figure is a side view of the quick-connect device for deep-sea drilling flow solids transport bridging hose provided by the present invention;

[0036] Figure 8 The attached figure is a structural schematic diagram of the detachable connector provided by the present invention;

[0037] Figure 9 The attached figure is a half-sectional front view of the detachable connector provided by the present invention;

[0038] Figure 10 The attached figure is provided by the present invention. Figure 9 A schematic diagram of part A in the middle;

[0039] Figure 11 The attached figure is a schematic diagram of the locked state of the quick-connect device for deep-sea drilling flow solids transport bridging hose provided by the present invention;

[0040] Figure 12 The attached figure is a schematic diagram of the disconnected state of the deep-sea drilling flow solids transport jumper hose quick connection device provided by the present invention.

[0041] in:

[0042] 10-Connecting matrix;

[0043] 101-Mating surface; 102-Shaft seat; 103-Guide pin; 104-Allowing groove; 105-Mating base plate; 106-Base pipe; 107-Base flange; 108-Through hole;

[0044] 20-Control jib;

[0045] 201-Mounting block; 202-Rotating shaft; 203-Connecting block; 204-Ratchet; 205-Pawl; 206-Spring; 207-Connecting rod; 208-Crossbeam; 209-Guide rod; 210-Sliding beam; 211-Variable diameter section; 212-Driving pull ring; 213-Driven pull ring; 214-Guide ring; 215-Cable; 216-Plane;

[0046] 30-Pressure plate frame;

[0047] 301 - Clamping clearance; 302 - Pin; 303 - Limiting groove; 304 - Side plate; 305 - Pressure plate; 306 - U-shaped groove;

[0048] 40 - Detachable connector;

[0049] 401 - Connecting pipe; 402 - First connecting flange; 403 - Second connecting flange; 404 - Sealing ring; 405 - Robot pick-up handle. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example 1:

[0052] See appendix Figure 1 To be continued Figure 4 This invention discloses a quick connector, including a connecting base 10 having a mating surface 101; and further comprising:

[0053] The mounting part includes two bearing seats 102 and two guide pins 103. The two bearing seats 102 are respectively fixed on the top two sides of the connecting base 10 away from the mating surface 101, and the two guide pins 103 are respectively fixed on the bottom of both sides of the mating surface 101.

[0054] The control frame 20 is arranged between two bearing seats 102. The mounting block 201 of the control frame 20 is rotatably connected to the two bearing seats 102 respectively via a rotating shaft 202. The rotating shaft 202 extends out of the bearing seat 102 and a connecting block 203 is fixed at its end. A ratchet 204 is sleeved on the rotating shaft 202. The ratchet 204 cooperates with the connecting base 10 to restrict the rotation of the ratchet 204. A pawl 205 that abuts against the ratchet teeth of the ratchet 204 is rotatably connected to the mounting block 201. A spring piece 206 is fixed on the mounting block 201. The movable end of the spring piece 206 presses the pawl 205 against the ratchet teeth of the ratchet 204. A spring piece release structure is connected to the control frame 20.

[0055] The pressure plate frame 30 forms a clamping gap 301 with the mating surface 101. The top of both sides of the pressure plate frame 30 are rotatably connected to the connecting block 203 through pins 302. Limiting slots 303 are opened at the bottom of both sides of the pressure plate frame 30. The two limiting slots 303 are slidably connected to the outside of the two guide pins 103.

[0056] See appendix Figure 6 The control frame 20 also includes connecting rods 207, a crossbeam 208, guide rods 209, and a sliding beam 210. There are two connecting rods 207, one end of which is fixed to two mounting blocks 201 respectively. The crossbeam 208 is fixed to the other end of the two connecting rods 207. There are two guide rods 209, which are fixed to the side of the crossbeam 208 away from the connecting rods 207 respectively. The end of the guide rod 209 away from the crossbeam 208 has a diameter-reducing section 211. The two ends of the sliding beam 210 are slidably connected to the diameter-reducing section 211. A spring release structure is connected between the sliding beam 210 and the spring piece 206.

[0057] See appendix Figure 7 The spring release structure includes an active pull ring 212 fixed on the sliding beam 210 and a driven pull ring 213 fixed on the spring 206. A guide ring 214 is fixed on the mounting block 201. One end of the cable 215 is fixed to the active pull ring 212 and the other end is fixed to the driven pull ring 213. The cable 215 passes through the guide ring 214.

[0058] To further optimize the above technical solution, a clearance groove 104 is provided on the top edge of the connecting base 10, and the mounting block 201 is located in the clearance groove 104.

[0059] See appendix Figure 5 The axial edge of the ratchet 204 facing the connecting base 10 is a plane 216, and the plane 216 is in contact with the connecting base 10.

[0060] See appendix Figure 3The pressure plate frame 30 includes two side plates 304 and a pressure plate 305 fixed between the two side plates 304; a pin 302 is fixed at the top of the side plate 304, and the pin 302 is rotatably connected to the connecting block 203; a limit slot 303 is opened at the bottom of the side plate 304; a mating clamping gap 301 is formed between the pressure plate 305 and the mating surface 101.

[0061] To further optimize the above technical solution, the pressure plate 305 is formed with a U-shaped groove 306.

[0062] Example 2:

[0063] See appendix Figure 1 To be continued Figure 8 This invention discloses a quick-connect device for deep-sea drilling flow solids transport jumper hoses, including a quick-connect component and a detachable connector 40 as described in Embodiment 1.

[0064] The connecting substrate 10 includes a mating substrate 105, a mating surface 101 is formed on one side of the mating substrate 105, a substrate pipe 106 is fixed on the other side of the mating substrate 105, a substrate flange 107 is fixed at one end of the substrate pipe 106 away from the mating substrate 105, and a through hole 108 communicating with the substrate pipe 106 is provided on the mating substrate 105.

[0065] The detachable connector 40 includes a docking pipe 401, and a first docking flange 402 and a second docking flange 403 respectively fixed at both ends of the docking pipe 401. The first docking flange 402 is clamped between the docking surface 101 and the pressure plate frame 30, so that the docking pipe 401 is connected to the through hole 108.

[0066] See appendix Figure 9 and attached Figure 10 A sealing ring 404 is fixed to the end face of the first mating flange 402 that mates with the mating surface 101. The sealing ring 404 is fixed to the end face of the first mating flange 402 by rubber vulcanization.

[0067] To further optimize the above technical solution, a robot pick-up handle 405 is fixed to the outer wall of the docking pipe 401.

[0068] In this embodiment, the appendix Figure 11 This is a schematic diagram of the locking state of the quick-connect device for solids transport jumper hose in deep-sea drilling. The control frame 20 is pressed down, causing the control frame 20 to drive the pressure plate frame 30 to move, pressing the first docking flange 402. The pawl 205 then moves and engages with the ratchet 204.

[0069] When disconnection is required, pulling the sliding beam 210 causes the spring piece 206 to be lifted under the action of the cable 215, and the pawl 205 loses its one-way limiting function, thus disconnecting the device, as shown in the attached diagram. Figure 12 As shown.

[0070] In use, the base flange 107 is installed on the fixed equipment, and the second mating flange 403 is connected to the standard hose to establish a fluid solid conveying connection channel.

[0071] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0072] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick connector, comprising a connecting base (10) having a mating surface (101); characterized in that, Also includes: The mounting part includes two bearing seats (102) and two guide pins (103). The two bearing seats (102) are respectively fixed on the top two sides of the connecting base (10) away from the mating surface (101), and the two guide pins (103) are respectively fixed on the bottom of both sides of the mating surface (101). A control frame (20) is arranged between two bearing seats (102). The mounting block (201) of the control frame (20) is rotatably connected to the two bearing seats (102) respectively via a rotating shaft (202). The rotating shaft (202) passes through the bearing seat (102) and has a connecting block (203) fixed at its end. A ratchet (204) is sleeved on the rotating shaft (202). The ratchet (204) cooperates with the connecting base (10) to restrict the rotation of the ratchet (204). A pawl (205) that abuts against the ratchet teeth of the ratchet (204) is rotatably connected to the mounting block (201). A spring piece (206) is fixed on the mounting block (201). The movable end of the spring piece (206) presses the pawl (205) against the ratchet teeth of the ratchet (204). A spring piece release structure is connected to the control frame (20). A pressure plate frame (30) is formed between the pressure plate frame (30) and the mating surface (101) to form a mating clamping gap (301). The top of both sides of the pressure plate frame (30) are rotatably connected to the connecting block (203) through pins (302). Limiting slots (303) are opened at the bottom of both sides of the pressure plate frame (30). The two limiting slots (303) are slidably connected to the outside of the two guide pins (103). The connecting base (10) includes a mating base plate (105), the mating surface (101) is formed on one side of the mating base plate (105), and a base pipe (106) is fixed on the other side of the mating base plate (105). A base flange (107) is fixed at one end of the base pipe (106) away from the mating base plate (105). The ratchet (204) faces the mating base plate (105) of the connecting base (10) as a plane (216), and the plane (216) is in contact with the connecting base (10).

2. The quick connector according to claim 1, characterized in that, The control frame (20) further includes connecting rods (207), a crossbeam (208), guide rods (209), and a sliding beam (210); there are two connecting rods (207), one end of each connecting rod (207) is fixed to one of the two mounting blocks (201), the crossbeam (208) is fixed to the other end of each connecting rod (207), there are two guide rods (209), and they are fixed to the side of the crossbeam (208) facing away from the connecting rods (207), the end of the guide rod (209) away from the crossbeam (208) has a diameter-reducing section (211); both ends of the sliding beam (210) are slidably connected to the diameter-reducing section (211), and the sliding beam (210) is connected to the spring release structure between the spring (206).

3. A quick connector according to claim 2, characterized in that, The spring release structure includes an active pull ring (212) fixed on the sliding beam (210) and a driven pull ring (213) fixed on the spring (206). A guide ring (214) is fixed on the mounting block (201). One end of the cable (215) is fixed to the active pull ring (212), and the other end is fixed to the driven pull ring (213). The cable (215) passes through the guide ring (214).

4. A quick connector according to claim 2, characterized in that, The top edge of the connecting base (10) is provided with a clearance slot (104), and the mounting block (201) is located in the clearance slot (104).

5. A quick connector according to claim 1, characterized in that, The pressure plate frame (30) includes two side plates (304) and a pressure plate (305) fixed between the two side plates (304); the top of the side plate (304) is fixed with the pin (302), the pin (302) is rotatably connected to the connecting block (203), and the bottom of the side plate (304) is provided with the limiting groove (303); the pressure plate (305) and the mating surface (101) form the mating clamping gap (301).

6. A quick connector according to claim 5, characterized in that, The pressure plate (305) has a U-shaped groove (306).

7. A quick-connect device for deep-sea drilling flow solids transport jumper hoses, characterized in that, Includes the quick-connector and detachable connector (40) as described in any one of claims 1-6: The docking substrate (105) has a through hole (108) that communicates with the base pipe (106). The detachable connector (40) includes a docking pipe (401), and a first docking flange (402) and a second docking flange (403) respectively fixed at both ends of the docking pipe (401). The first docking flange (402) is clamped between the docking surface (101) and the pressure plate frame (30), so that the docking pipe (401) is connected to the through hole (108).

8. A quick-connect device for deep-sea drilling flow solids transport jumper hose according to claim 7, characterized in that, A sealing ring (404) is fixed on the end face of the first mating flange (402) that mates with the mating surface (101).

9. A quick-connect device for deep-sea drilling flow solids transport jumper hose according to claim 7, characterized in that, The outer wall of the docking pipe (401) is fixed with a robot pick-up handle (405).

Images