CN216478095U - Emergency rescue equipment for underwater blowout preventer - Google Patents

Abstract

An emergency rescue device for an underwater blowout preventer comprises a pumping device, a hydraulic power device, a suction device, a container and a discharge device. The pumping device comprises a first pumping part and a second pumping part; the hydraulic power device is connected with the pumping device; the suction device is connected with the first pumping part and the second pumping part; the container is connected with the first pumping part; the pumping device is connected with the discharge device, the first pumping part is configured to convey fluid with a first flow rate and a first pressure to the discharge device, the second pumping part is configured to convey fluid with a second flow rate and a second pressure to the discharge device, the first flow rate is greater than the second flow rate, and the first pressure is less than the second pressure; the exhaust device is configured to connect with the blowout preventer and deliver fluid input by the pumping device to the blowout preventer. The emergency rescue equipment for the underwater blowout preventer comprises two working states for controlling a flashboard valve of the blowout preventer to be quickly conveyed to a position to be sheared, and shearing an oil pipe to finish the well abandoning and sealing operation.

Description

Emergency rescue equipment for underwater blowout preventer

Technical Field

The embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water is related to.

Background

The emergency function of the underwater blowout preventer is one of important functions of a semi-submersible drilling platform, and after the yellow and blue control systems fail, the emergency function of the underwater blowout preventer has important well control functions of quickly controlling the blowout preventer to close a well and open a well head connector, and the emergency function of the blowout preventer is very important for the well control safety of the semi-submersible drilling platform.

SUMMERY OF THE UTILITY MODEL

At least one embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water. The embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water can control preventer gate valve and send soon and remove to the position of treating the shearing to cut oil pipe, accomplish and abandon the shut-in operation, provide reliable guarantee for offshore drilling device well control safety.

An at least embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water, include: pumping means, hydraulic power means, suction means, reservoir and discharge means. The pumping device comprises a first pumping part and a second pumping part; the hydraulic power device is connected with the first pumping part and the second pumping part and is configured to convey hydraulic oil to the first pumping part and the second pumping part; the suction device is connected with the first pumping part and the second pumping part and is configured to convey sucked first liquid to the first pumping part and the second pumping part; the container is connected with the first pumping part and is configured to convey the second liquid stored in the container to the first pumping part; the first pumping section and the second pumping section are both connected to the discharge device. The first pumping section is configured to deliver fluid having a first flow rate and a first pressure to the drain, the second pumping section is configured to deliver fluid having a second flow rate and a second pressure to the drain, the first flow rate is greater than the second flow rate, and the first pressure is less than the second pressure; the drain is configured to connect with a blowout preventer and deliver the fluid input by the first and second pumping sections to the blowout preventer.

For example, according to an embodiment of the present invention, the hydraulic power device includes a first oil inlet, a second oil inlet, a shuttle valve, and a plurality of check valves; the shuttle valve comprises two inlet ends and an outlet end, the two inlet ends of the shuttle valve are respectively connected with the first oil inlet and the second oil inlet, the plurality of one-way valves comprise at least two first one-way valves and at least one second one-way valve, the outlet end of the shuttle valve is connected with the inlet end of the first one-way valve, and the second oil inlet is connected with the inlet end of the second one-way valve; the first pumping part comprises at least two pump groups, the at least two pump groups are arranged in one-to-one correspondence with the at least two first one-way valves, the pump groups of the first pumping part are connected with the outlet ends of the corresponding first one-way valves, the second pumping part comprises at least one pump group, the at least one pump group is arranged in one-to-one correspondence with the at least one second one-way valve, and the pump groups of the second pumping part are connected with the outlet ends of the corresponding second one-way valves.

For example, according to the utility model discloses an embodiment, hydraulic power device still includes a plurality of speed governing valves, a plurality of speed governing valves with a plurality of check valve one-to-ones set up and are connected with the exit end of corresponding check valve, the speed governing valve is located the check valve with between the pump package.

For example, according to the utility model discloses an embodiment, hydraulic power unit still includes first relief pressure valve and second relief pressure valve, first relief pressure valve with the entry end of first check valve is connected, the second relief pressure valve with the exit end of second check valve is connected.

For example, according to the utility model discloses an embodiment, hydraulic power device still includes the relief valve, the entry end of relief valve with the exit end of second check valve is connected, just the entry end of relief valve with be provided with between the exit end of second check valve the speed governing valve.

For example, according to the embodiment of the present invention, the suction device includes a ball valve and a cylinder connected to the ball valve, the hydraulic power device is connected to the cylinder to drive the cylinder to swing, the cylinder is configured to control a switch of the ball valve, and the ball valve is configured to control the inflow and outflow of the first liquid.

For example, according to an embodiment of the present invention, the suction device further includes a pressure compensator connected to the cylinder to maintain a pressure balance of a cylinder body of the cylinder.

For example, according to an embodiment of the present invention, the inhalation device further comprises a high pressure needle valve and a first filter, the first filter being located at an outlet end of the high pressure needle valve.

For example, according to an embodiment of the present invention, the inhalation device further comprises a safety valve located at the exit side of the first filter.

For example, in accordance with an embodiment of the present invention, the inhalation device further comprises a second filter located at the inlet end of the ball valve.

For example, in accordance with an embodiment of the present invention, the expelling means comprises a recoverable one-way valve connected with the first pumping section.

For example, according to the utility model discloses an embodiment, the emergent equipment of speedily carrying out rescue work of preventer still includes the sled frame under water, pumping device, hydraulic power device, suction device, the container and eduction gear are integrated on the sled frame.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 is a schematic view of connection relationship between an emergency rescue device for an underwater blowout preventer and the blowout preventer and an underwater robot provided according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the connection of the hydraulic power unit of FIG. 1 with a pumping unit and an underwater robot;

FIG. 3 is a schematic illustration of the connection of the intake apparatus of FIG. 1 to a hydraulic power unit and a pumping unit;

FIG. 4 is a schematic illustration of the connection of the displacement apparatus of FIG. 1 with a pumping apparatus and a blowout preventer;

fig. 5 is a schematic structural diagram of an emergency rescue device for an underwater blowout preventer according to an embodiment of the present invention;

FIG. 6 is a top view of the emergency rescue apparatus of the subsea blowout preventer of FIG. 5; and

FIG. 7 is a side view of the emergency rescue apparatus of the subsea blowout preventer of FIG. 5.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

When the blue and yellow control systems of the underwater blowout preventer both fail and the platform starts the emergency function of the underwater blowout preventer, an underwater Robot (ROV) pulls out a plug on the cut-off position of the cut-off gate plate of the emergency control function panel of the blowout preventer or the open position of the well head connector, and then the interface of the emergency rescue device of the blowout preventer is butted with the cut-off position of the cut-off gate plate of the emergency control function panel of the blowout preventer or the open position of the well head connector.

An embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water, it includes pumping installations, hydraulic power device, suction device, container and eduction gear. The pumping device comprises a first pumping part and a second pumping part; the hydraulic power device is connected with the first pumping part and the second pumping part and is configured to convey hydraulic oil to the first pumping part and the second pumping part; the suction device is connected with the first pumping part and the second pumping part and is configured to convey the sucked first liquid to the first pumping part and the second pumping part; the container is connected with the first pumping part and is configured to convey the second liquid stored in the container to the first pumping part; the first pumping part and the second pumping part are both connected with the discharge device, the first pumping part is configured to convey fluid with a first flow rate and a first pressure to the discharge device, the second pumping part is configured to convey fluid with a second flow rate and a second pressure to the discharge device, the first flow rate is greater than the second flow rate, and the first pressure is less than the second pressure; the drain is configured to connect with the blowout preventer and deliver fluid input by the first and second pumping sections to the blowout preventer. The embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water includes that two kinds of operating condition send soon with control preventer slide valve and remove to the position of treating the shearing to cut oil pipe, accomplish and abandon the well shut-in operation, provide reliable guarantee for offshore drilling device well control safety.

The following describes the emergency rescue equipment of the underwater blowout preventer provided by the embodiment of the invention with reference to the attached drawings.

Fig. 1 is a schematic diagram of a connection relationship between an emergency rescue device for an underwater blowout preventer and the blowout preventer and an underwater robot, provided according to an embodiment of the present invention, and fig. 1 shows a block diagram of the emergency rescue device for the underwater blowout preventer. As shown in fig. 1, the emergency rescue apparatus 10 for a subsea blowout preventer includes a pumping device 100, a hydraulic power device 200, a suction device 300, a container 400, and a discharge device 500. The pumping device 100 includes a first pumping section 110 and a second pumping section 120; the hydraulic power device 200 is connected to the first pumping part 110 and the second pumping part 120, and is configured to deliver hydraulic oil to the first pumping part 110 and the second pumping part 120; the suction device 300 is connected with the first pumping part 110 and the second pumping part 120, and is configured to deliver the sucked first liquid 301 to the first pumping part 110 and the second pumping part 120; the container 400 is connected to the first pumping part 110, and the container 400 is configured to deliver the second liquid 401 stored therein to the first pumping part 110; the first pumping part 110 and the second pumping part 120 are both connected to the discharge device 500, the first pumping part 110 is configured to deliver the fluid 101 having a first flow rate and a first pressure to the discharge device 500, and the second pumping part 120 is configured to deliver the fluid having a second flow rate and a second pressure to the discharge device 500, the first flow rate is greater than the second flow rate, and the first pressure is less than the second pressure. For example, the fluid 101 may be a fluid characterized by a large flow rate and a small pressure, and the fluid 102 may be a fluid characterized by a large pressure and a small flow rate, whereby the first pumping section is configured to achieve a first operating state of a large flow rate and a small pressure, and the second pumping section is configured to achieve a second operating state of a large pressure and a small flow rate.

As shown in fig. 1, the drain 500 is configured to connect with the blowout preventer 20 and deliver the fluids 101 and 102 input by the first and second pumping sections 110 and 120 to the blowout preventer 20. For example, the exhaust 500 is configured to be connected with a ram valve of a blowout preventer to control the ram valve to move rapidly to a pipe section to be sheared and then push the ram valve to cut off the pipeline. For example, the emergency equipment 10 for the underwater blowout preventer comprises the two working states, the emergency equipment 10 for the underwater blowout preventer in the first working state can control the shearing ram of the blowout preventer to move rapidly to the position of the pipeline to be cut, and the emergency equipment 10 for the underwater blowout preventer in the second working state can provide pressure for the shearing ram to cut off the pipeline to be cut.

The embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water includes that two kinds of operating condition send soon with control preventer slide valve and remove to the position of treating the shearing to cut oil pipe, accomplish and abandon the well shut-in operation, provide reliable guarantee for offshore drilling device well control safety.

For example, as shown in fig. 1, a subsea Robot (ROV)30 may be coupled to a hydraulic power plant 200 to deliver hydraulic oil 31 to the hydraulic power plant 200. The dotted line arrows shown in fig. 1 indicate oil passages, and the solid line arrows indicate water passages.

For example, as shown in fig. 1, each of the first pumping section 110 and the second pumping section 120 may include a motor to which the hydraulic power device 200 delivers hydraulic oil and a pump driven by the motor to pump the fluid 101 or the fluid 102 to the drain 500. For example, the driving member is not limited to the motor, and may be other driving means.

For example, as shown in fig. 1, the inhalation device 300 is configured to transfer the inhaled first liquid 301 to the pump of the first pumping part 110 and the pump of the second pumping part 120, and the container 400 is configured to transfer the stored second liquid 401 to the pump of the first pumping part 110.

For example, as shown in fig. 1, the first liquid 301 may be seawater and the second liquid 401 may be glycol or water. For example, the first pumping part 110 is configured to pump the first liquid 301 and the second liquid 401 to the discharge device 500, and the second pumping part 120 is configured to pump the first liquid 301 to the discharge device 500.

For example, the container 400 may include a sealed bladder for storing the second liquid 401, and an overflow valve that may be depressurized for protection when the pressure in the sealed bladder is too high.

For example, fig. 2 is a schematic diagram of the connection relationship between the hydraulic power unit shown in fig. 1 and the pumping unit and the underwater robot. As shown in fig. 1 and 2, the hydraulic power unit 200 includes a first oil inlet 201, a second oil inlet 202, a shuttle valve 210, and a plurality of check valves. For example, the underwater Robot (ROV)30 is configured to deliver hydraulic oil 31 to at least one of the first oil inlet 201 and the second oil inlet 202.

For example, as shown in fig. 2, the shuttle valve 210 includes two inlet ends 211 and 212 and an outlet end 213, and the two inlet ends 211 and 212 of the shuttle valve 210 are connected to the first oil inlet 201 and the second oil inlet 202, respectively. For example, the inlet end 211 of the shuttle valve 210 may be connected to the first oil inlet 201 and the inlet end 212 of the shuttle valve 210 may be connected to the second oil inlet 202.

For example, the shuttle valve 210 is used for pressure selection, and the outlet port 213 can ensure that the pressure of the output hydraulic oil is the same regardless of which of the two inlet ports 211 and 212 is high, and a control oil path is led out between the two main oil paths which are normally used for alternate pressure. For example, when the pressure of the hydraulic oil input from the inlet end 211 is high, the force applied by the inlet end 211 on the middle valve core causes the valve core to be pushed to the inlet end 212 side, the inlet end 212 is blocked, the hydraulic oil flowing from the inlet end 211 flows to the outlet end 213, and the pressure of the hydraulic oil flowing out from the outlet end 213 is equal to the pressure of the hydraulic oil flowing in from the inlet end 211; on the contrary, when the pressure of the hydraulic oil input from the inlet end 212 is high, the force applied by the inlet end 212 on the middle valve core causes the valve core to be pushed to the inlet end 211 side, the inlet end 211 is blocked, the hydraulic oil flowing from the inlet end 212 flows to the outlet end 213, and the pressure of the hydraulic oil flowing out from the outlet end 213 is equal to the pressure of the hydraulic oil flowing in from the inlet end 212.

For example, as shown in fig. 2, the plurality of check valves includes at least two first check valves 220 and at least one second check valve 230, the outlet end 213 of the shuttle valve 210 is connected to the inlet end of the first check valve 220, and the second oil inlet 202 is connected to the inlet end of the second check valve 230. For example, the check valves include two first check valves 220 and one second check valve 230, and the outlet end 213 of the shuttle valve 210 is connected to the inlet ends of the two first check valves 220.

For example, as shown in fig. 2, the first pumping part 110 includes at least two pump groups 111, the at least two pump groups 111 are disposed in one-to-one correspondence with the at least two first check valves 220, and the pump groups 111 of the first pumping part 110 are connected with the outlet ends of the respective first check valves 220, the second pumping part 120 includes at least one pump group 121, the at least one pump group 121 is disposed in one-to-one correspondence with the at least one second check valve 230, and the pump groups 121 of the second pumping part 120 are connected with the outlet ends of the respective second check valves 230.

For example, as shown in fig. 2, the first pumping part 110 includes two pump groups 111, each pump group 111 being connected with an outlet end of one first check valve 220; the second pumping part 120 includes a pump set 121, and the pump set 121 is connected to an outlet end of the second check valve 230. The embodiment of the utility model provides a be not limited to this, the quantity of pump package in each pumping department can set up according to the demand, and the quantity of first check valve is the same with the quantity of pump package in the first pumping department, and the quantity of second individual term valve is the same with the quantity of pump package in the second pumping department.

For example, as shown in fig. 2, the first oil inlet 201 is connected to an inlet end 211 of the shuttle valve 210, and the second oil inlet 202 is connected to an inlet end 212 of the shuttle valve 210. For example, when the first oil inlet 201 supplies hydraulic oil to the inlet end 211 of the shuttle valve 210, the pressure of the hydraulic oil at the inlet end 211 is high, the valve core is pushed to the inlet end 212 side, the inlet end 212 is blocked, the hydraulic oil flowing from the inlet end 211 flows to the outlet end 213, the hydraulic oil flowing from the outlet end 213 flows to the two first check valves 220, and then the two pump sets 111 of the first pumping part 110 are driven to operate, the first pumping part 110 outputs the fluid 101 with large flow and small pressure to the discharging device 500, and the discharging device 500 supplies the fluid 101 to the blowout preventer, so as to push the ram valve of the blowout preventer to rapidly move to a pipe section to be sheared.

For example, as shown in fig. 2, when the second oil inlet 202 supplies hydraulic oil to the inlet end 212 of the shuttle valve 210, the pressure of the hydraulic oil at the inlet end 212 is high, the valve core is pushed to the inlet end 211 side, the inlet end 211 is blocked, the hydraulic oil flowing from the inlet end 212 flows to the outlet end 213, the hydraulic oil flowing from the outlet end 213 flows into the two first check valves 220, the hydraulic oil inputted from the second oil inlet 202 flows to the one second check valve 230, and then the two pump sets 111 of the first pumping part 110 and one pump set of the second pumping part 120 are driven to operate, the first pumping part 110 outputs fluid 101 with large flow and small pressure to the discharge device 500, the second pumping part 120 outputs fluid 102 with small flow and large pressure to the discharge device 500, and the discharge device 500 simultaneously supplies the fluid 101 and the fluid 102 to the blowout preventer to push the gate valve to cut off the pipeline.

For example, as shown in fig. 2, when the first pumping part 110 includes two pump sets 111, the emergency blowout preventer 10 provides double flow to the ram valve, thereby ensuring that the ram valve can move quickly to reach a shear ready state. However, the embodiment of the present invention is not limited to this, and the number of the pump groups that the first pumping part includes may be determined according to the required flow of the rapid movement of the ram valve of the blowout preventer, and the number of the pump groups may be one, and may also be more.

For example, as shown in fig. 2, when the pump group 121 in the second pumping part 120 operates, a strong pressure can be provided for the gate valve of the blowout preventer, so that the gate valve can reach the pressure required for cutting the oil pipe, and the oil pipe is cut, thereby completing the well-sealing state.

For example, as shown in fig. 2, the oil return port 1001 of the first pumping part 110 is connected to the hydraulic power unit, the oil return port 1002 of the second pumping part 120 is connected to the hydraulic power unit, and the hydraulic oil flowing out of the oil return port 1001 of the first pumping part 110 and the oil return port 1002 of the second pumping part 120 is returned to the hydraulic oil TANK (TANK203) of the underwater Robot (ROV)30 and finally flows back to the hydraulic oil TANK of the underwater robot 30. For example, a third check valve 271 is provided in a path of the hydraulic oil flowing out from the oil return port 1001 of the first pumping part 110 and the oil return port 1002 of the second pumping part 120 to the hydraulic oil tank of the underwater robot 30. The structural block diagrams of the two first pumping parts 110 shown in fig. 2 actually represent the same first pumping part 110, and the structural block diagrams of the two second pumping parts 120 shown in fig. 2 actually represent the same second pumping part 120.

For example, as shown in fig. 2, the hydraulic power device 200 further includes a plurality of speed regulating valves 240, the plurality of speed regulating valves 240 are disposed in one-to-one correspondence with the plurality of check valves and connected to outlet ends of the respective check valves, and the speed regulating valves 240 are located between the check valves and the pump group. Each speed regulating valve is used for regulating the flow of the fluid input to the pump group connected with the speed regulating valve so as to meet the flow requirements of the first pumping part and the second pumping part on the fluid.

For example, the speed regulating valve 240 may be a combination valve formed by a constant-pressure-difference pressure reducing valve and a throttle valve connected in series; the throttle valve can be used for adjusting the flow passing through, and the constant-differential pressure reducing valve can be used for automatically compensating the influence of load change, so that the differential pressure between the front and the rear of the throttle valve is a constant value, and the influence of the load change on the flow is eliminated.

For example, as shown in fig. 2, the hydraulic power device 200 includes three speed valves 240, two speed valves 240 are connected to two first one-way valves 220, and one speed valve 240 is connected to one second one-way valve 230. For example, the two speed valves 240 connected to the two first check valves 220 may adjust the flow rate of the fluid flowing into the first pumping part 110 to have a large value. For example, the speed valve 240 connected to the second check valve 230 may adjust the flow rate of the fluid flowing into the second pumping part 120 to have a small value. For example, a flow rate having a larger value may include 170L/min and a flow rate having a smaller value may include 85L/min.

For example, as shown in fig. 2, the hydraulic power unit 200 further includes a first pressure reducing valve 251 and a second pressure reducing valve 252, the first pressure reducing valve 251 being connected to an inlet end of the first check valve 220, and the second pressure reducing valve 252 being connected to an outlet end of the second check valve 230. The first pressure reducing valve 251 is used to reduce the pressure of the fluid input to the first pumping part 110, and the second pressure reducing valve 252 is used to reduce the pressure of the fluid input to the second pumping part 120, so as to meet the pressure requirements of the fluid by the first and second pumping parts.

For example, the first pressure reducing valve 251 and the second pressure reducing valve 252 may be valves that automatically stabilize the outlet pressure by adjusting the inlet pressure to a desired outlet pressure and relying on the energy of the medium itself. For example, the first pressure reducing valve 251 and the second pressure reducing valve 252 may be a throttling element with variable local resistance, such as by changing the throttling area, so that the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of pressure reduction.

For example, as shown in fig. 2, a first pressure reducing valve 251 is connected to outlet ends of two first check valves 220, and the first pressure reducing valve 251 may adjust the pressure of fluid flowing into the first pumping part 110 to have a small value. For example, the second pressure reducing valve 252 is connected to the second check valve 230, and the second pressure reducing valve 252 may adjust the pressure of the fluid flowing into the second pumping part 120 to have a large value. For example, the larger value of the pressure of the fluid may comprise 7500psi and the smaller value of the pressure of the fluid may comprise 1500 psi.

For example, as shown in fig. 2, the hydraulic power device 200 further includes a relief valve 260, an inlet end of the relief valve 260 is connected to an outlet end of the second one-way valve 230, and a speed regulating valve 240 is disposed between the inlet end of the relief valve 260 and the outlet end of the second one-way valve 230. The pressure relief valve 260 is configured to relieve pressure when fluid pressure is too high when the subsea blowout preventer emergency equipment is in a high pressure low flow operating state.

For example, as shown in fig. 2, the hydraulic power unit includes a valve block 01.

For example, as shown in fig. 2, the hydraulic power unit further includes a hydraulic oil inlet 0201, and the hydraulic oil inlet 0201 supplies hydraulic oil to the pump unit 111 and the pump unit 121. For example, the first oil inlet 201 and the second oil inlet 201 may supply oil to a check valve, thereby controlling the opening and closing of the oil path.

For example, FIG. 3 is a schematic diagram of the connection of the intake device of FIG. 1 to a hydraulic power unit and a pumping unit. As shown in fig. 1 to 3, the suction device 300 includes a ball valve 310 and a cylinder 320 connected to the ball valve 310, the hydraulic power device 200 is connected to the cylinder 320 to drive the cylinder 320 to swing, the cylinder 320 is configured to control the opening and closing of the ball valve 310, and the ball valve 310 is configured to control the inflow and outflow of the first liquid 101. For example, the cylinder 320 may be a swing cylinder. For example, the ball valve 310 may be a subsea ball valve.

For example, as shown in fig. 1 to 3, the underwater robot 30 can deliver hydraulic oil to the hydraulic power device 200 through the oil inlet 204 of the hydraulic power device, and the hydraulic oil drives the swing cylinder 320 to move, so as to open the underwater ball valve 310. For example, the underwater robot 30 can supply hydraulic oil to the hydraulic power device through the oil inlet 205 of the hydraulic power device 200, and the hydraulic oil drives the swing cylinder 320 to move, so as to close the underwater ball valve 310. The two block diagrams of fig. 2, designated by reference numeral 320, actually represent the same swing cylinder 320.

For example, as shown in fig. 2, the hydraulic power device further includes a priority valve 272 and a priority valve 273, the priority valve 272 is connected to the oil inlet 205, the priority valve 273 is connected to the oil inlet 204, and both the priority valve 272 and the priority valve 273 are connected to the swing cylinder 320, so as to ensure the flow direction of the hydraulic oil, so that the swing cylinder 320 can perform sequential operation accurately.

For example, as shown in fig. 1 to 3, the suction device 300 is configured to pump the external seawater to the discharge device 500 through the first and second pumping parts 110 and 120.

For example, as shown in fig. 3, the suction device 300 further includes a pressure compensator 330, and the pressure compensator 330 is connected to the cylinder 320 to maintain the pressure balance of the cylinder body of the cylinder 320, so that the swing cylinder 320 can meet the normal operation requirement at a depth of 3000 m under water.

For example, the pressure compensator 330 may include a bladder structure, such as a rubber bladder, and the pressure compensator 330 may be coupled to the swing cylinder to equalize the pressure within the cylinder.

For example, as shown in fig. 3, the inhalation device 300 further comprises a high pressure needle valve 340 and a first filter 350, the first filter 350 being located at an outlet end of the high pressure needle valve 340.

For example, the high pressure needle valve 340 may control the inflow and outflow of the first liquid 101 by opening and closing. For example, the high pressure needle valve 340 may be a trim valve having high adjustment accuracy, and the valve plug may be shaped like a needle to adjust the flow rate of the fluid passing therethrough.

For example, seawater flowing into the suction device 300 through the high pressure needle valve 340 may be delivered to the pumping device 100 after being filtered by the first filter 350.

For example, as shown in fig. 3, the suction device 300 further includes a safety valve 360, the safety valve 360 is located at the liquid outlet side of the first filter 350, and when the pressure of the seawater flowing into the suction device 300 through the high pressure needle valve 340 reaches the opening pressure of the safety valve 360, the safety valve 360 is opened to perform pressure release.

For example, as shown in FIG. 3, the inhalation device 300 further comprises a second filter 370, the second filter 370 being located at the inlet end of the ball valve 310. For example, ambient seawater (e.g., the first liquid 301) may be filtered by the second filter 370 and may flow into the suction device 300 after the ball valve 310 is opened.

For example, the second filter 370 may be a duplex filter, which has a large pipe diameter, a large treatment flow per unit area, a small filtration resistance, and a high filtration efficiency.

For example, the first filter 350 may have a smaller conduit diameter than the second filter 370.

For example, as shown in fig. 1 to 3, when the pumping device 100 is configured to pump the fluid 101 having a large flow rate and a small pressure characteristic to the exhaust device 500, the hydraulic power device 200 provides power to the swing cylinder 320, the swing cylinder 320 controls the opening of the underwater ball valve 310, and the external seawater enters the suction device 300 through the second filter 320 and the opened underwater ball valve 310. For example, when the pumping device 100 is configured to pump the fluid 102 having a small flow rate and a large pressure characteristic to the discharging device 500, the swing cylinder 320 controls the underwater ball valve 310 to be closed, the high pressure needle valve 340 to be opened, and the external seawater filtered by the first filter 350 can be delivered to the pumping device 100.

For example, as shown in fig. 3, the suction device further includes a relief valve 384, and when the pressure of the seawater in the suction device reaches a cracking pressure of the relief valve 384, the relief valve 384 is opened to release the pressure.

For example, as shown in fig. 3, the suction device further includes a pressure compensator 383, the pressure compensator 383 being configured to maintain a pressure balance of the seawater within the suction device.

For example, as shown in fig. 3, the suction device further includes a ball valve 382 and a pressure gauge 381 connected to the ball valve 382, when the pressure gauge 381 indicates that the pressure of the seawater in the suction device exceeds 7500psi of the maximum pressure, the ball valve 382 is opened, the seawater in the suction device is pressed into the discharge device 500, and the discharge device 500 discharges the seawater to the outside.

For example, as shown in fig. 3, the inhalation device includes a valve block 02.

For example, FIG. 4 is a schematic diagram of the connection of the displacement device of FIG. 1 to a pumping device and a blowout preventer. As shown in fig. 4, the discharge device 500 includes a recoverable one-way valve 510, and the recoverable one-way valve 510 is coupled to the first pumping section 110.

For example, as shown in fig. 4, the discharge device 500 includes a port 521, a port 522, and a port 523, the port 521 and the port 522 are connected to the first pumping part 110, and the port 523 is connected to the second pumping part 120.

For example, as shown in fig. 4, the first pumping part 110 includes two pump groups, the number of the recoverable check valves 510 is two, and one pump group is connected to one recoverable check valve 510.

For example, when the pressure of the fluid delivered by the first pumping section 110 is greater than the pressure at the location of the gate valve of the blowout preventer 20, the fluid pumped by the first pumping section 110 to the exhaust 500 may pass through the resettable one-way valve 510 for delivery to the gate valve; when the pressure of the fluid delivered by the first pumping section 110 is less than the pressure at the location of the gate valve of the blowout preventer 20, the fluid pumped by the first pumping section 110 to the exhaust 500 cannot be delivered to the gate valve through the recoverable one-way valve 510. For example, when the first pumping part 110 is not operated (i.e., no flow and pressure are applied), the recoverable check valve 510 returns to the initial state, and the fluid pumped by the first pumping part 110 to the exhaust device 500 cannot be delivered to the gate valve through the recoverable check valve 510.

For example, standardization of the interface is beneficial to ensure that the underwater robot has a correct interface, and the shutdown time specified by the American Petroleum institute 16D (API16D) can be met by standardizing, shutting down time and efficiently operating emergency equipment of the underwater blowout preventer. For example, when the drift diameter DN of the gate valve of the blowout preventer is less than or equal to 100mm (NPS is less than or equal to 4), the closing time of the gate valve is 2 minutes; when DN is more than or equal to 150mm and less than or equal to 450mm (NPS is more than or equal to 6 and less than or equal to 18), closing the gate valve for 5 minutes; when DN is more than or equal to 500mm (NPS is more than or equal to 20), the closing time of the gate valve is 10 minutes.

The embodiment of the utility model provides a through the valve members such as governing valve, relief pressure valve, relief valve, the relief valve that set up in the emergent equipment of speedily carrying out rescue work of preventer under water, guaranteed that the emergent equipment of speedily carrying out rescue work of preventer under water satisfies the operating requirement for the fluidic pressure and the flow that preventer ram valve provided.

For example, fig. 5 is a schematic structural diagram of an emergency rescue device for an underwater blowout preventer according to an embodiment of the present invention, fig. 6 is a top view of the emergency rescue device for an underwater blowout preventer shown in fig. 5, and fig. 7 is a side view of the emergency rescue device for an underwater blowout preventer shown in fig. 5.

For example, as shown in fig. 1 to 7, the emergency rescue equipment for the underwater blowout preventer further includes a pry frame 630, and the pumping device 100, the hydraulic power device 200, the suction device 300, the container 400, and the exhaust device 500 are integrated on the pry frame 630. The embodiment of the utility model provides an emergent equipment of speedily carrying out rescue work of preventer under water, through with pumping installations, hydraulic power device, suction device, container and eduction gear integration together, provide power for the system of the aforesaid integration together by underwater Robot (ROV). Therefore, on the basis of reducing the occupied volume of the underwater blowout preventer emergency rescue equipment, the connection relation of all devices and the connection relation of the underwater blowout preventer emergency rescue equipment, the underwater robot and the blowout preventer are simplified, and the application is facilitated.

For example, as shown in fig. 5 to 7, the emergency rescue equipment for the underwater blowout preventer further comprises an anode zinc block 610 and a buoyancy block 620. For example, the material of the body of the sled 630 may be aluminum. For example, the zinc block 610 may function to reduce corrosion of the device base material by a sacrificial anode protection method (aluminum normally forms an oxide film, and zinc is more active than the oxide film and serves as an anode). For example, the buoyancy block 620 may increase the buoyancy of the emergency equipment of the underwater blowout preventer in water, and reduce the load of the underwater robot (the emergency equipment of the underwater blowout preventer is carried by the underwater robot to move during operation).

The following points need to be explained:

(1) in the drawings of the embodiments of the present invention, only the structures related to the embodiments of the present invention are referred to, and other structures may refer to general designs.

(2) Features of the present invention may be combined with each other in the same embodiment and in different embodiments without conflict.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims (12)

1. An emergency rescue apparatus for an underwater blowout preventer, comprising:

a pumping device comprising a first pumping section and a second pumping section;

a hydraulic power device connected with the first pumping part and the second pumping part and configured to deliver hydraulic oil to the first pumping part and the second pumping part;

a suction device connected with the first and second pumping parts and configured to transfer a sucked first liquid to the first and second pumping parts;

a container connected to the first pumping section and configured to deliver a second liquid stored therein to the first pumping section; and

a discharge device to which the first and second pumping sections are both connected, wherein the first pumping section is configured to deliver fluid having a first flow rate and a first pressure to the discharge device, the second pumping section is configured to deliver fluid having a second flow rate and a second pressure to the discharge device, the first flow rate is greater than the second flow rate, and the first pressure is less than the second pressure; the drain is configured to connect with a blowout preventer and deliver the fluid input by the first and second pumping sections to the blowout preventer.

2. The emergency rescue apparatus of a subsea blowout preventer of claim 1, wherein the hydraulic power device comprises a first oil inlet, a second oil inlet, a shuttle valve, and a plurality of one-way valves;

the shuttle valve comprises two inlet ends and an outlet end, the two inlet ends of the shuttle valve are respectively connected with the first oil inlet and the second oil inlet, the plurality of one-way valves comprise at least two first one-way valves and at least one second one-way valve, the outlet end of the shuttle valve is connected with the inlet end of the first one-way valve, and the second oil inlet is connected with the inlet end of the second one-way valve;

the first pumping part comprises at least two pump groups, the at least two pump groups are arranged in one-to-one correspondence with the at least two first one-way valves, the pump groups of the first pumping part are connected with the outlet ends of the corresponding first one-way valves, the second pumping part comprises at least one pump group, the at least one pump group is arranged in one-to-one correspondence with the at least one second one-way valve, and the pump groups of the second pumping part are connected with the outlet ends of the corresponding second one-way valves.

3. The emergency rescue equipment of an underwater blowout preventer of claim 2, wherein the hydraulic power device further comprises a plurality of speed regulating valves, the plurality of speed regulating valves and the plurality of one-way valves are arranged in one-to-one correspondence and are connected with outlet ends of the corresponding one-way valves, and the speed regulating valves are located between the one-way valves and the pump set.

4. The emergency rescue apparatus for a subsea blowout preventer of claim 2, wherein the hydraulic power device further comprises a first pressure reducing valve and a second pressure reducing valve, the first pressure reducing valve being connected to an inlet end of the first one-way valve, the second pressure reducing valve being connected to an outlet end of the second one-way valve.

5. The emergency rescue equipment of an underwater blowout preventer according to claim 3, wherein the hydraulic power device further comprises a pressure relief valve, an inlet end of the pressure relief valve is connected with an outlet end of the second one-way valve, and the speed regulating valve is arranged between the inlet end of the pressure relief valve and the outlet end of the second one-way valve.

6. The emergency rescue apparatus of a subsea blowout preventer of any of claims 1-5, wherein the suction device comprises a ball valve and a ram connected to the ball valve, the hydraulic power device being connected to the ram to drive the ram to oscillate, the ram being configured to control the opening and closing of the ball valve, the ball valve being configured to control the inflow and outflow of the first liquid.

7. The emergency rescue apparatus for a subsea blowout preventer of claim 6, wherein the suction device further comprises a pressure compensator connected with the ram to maintain pressure balance of a cylinder of the ram.

8. The emergency rescue apparatus of a subsea blowout preventer of claim 6, wherein the suction device further comprises a high pressure needle valve and a first filter located at an outlet end of the high pressure needle valve.

9. The emergency rescue apparatus of a subsea blowout preventer of claim 8, wherein the suction device further comprises a safety valve located on the effluent side of the first filter.

10. The emergency rescue apparatus of a subsea blowout preventer of claim 6, wherein the suction device further comprises a second filter located at an inlet end of the ball valve.

11. An emergency rescue apparatus for a subsea blowout preventer according to any of claims 1-5, wherein the evacuation device comprises a recoverable one-way valve, the recoverable one-way valve being connected to the first pumping section.

12. An emergency rescue apparatus for a subsea blowout preventer according to any one of claims 1 to 5, further comprising a pry frame on which the pumping means, the hydraulic power means, the suction means, the vessel and the exhaust means are integrated.

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