CN118208172A - All-electric underwater control device and oil extraction system - Google Patents

Abstract

The invention discloses an all-electric underwater control device and an oil extraction system. When the underwater valve is in operation, the power supply system of the water platform supplies power to the SEM cabin and the driving cabin at the same time, the control system of the water platform transmits a control instruction to the SEM cabin, the control instruction is converted into an electric signal in the SEM cabin and then enters the driving cabin, the driving cabin transmits the electric signal to the underwater valve actuator on the christmas tree, and the underwater valve actuator is controlled to execute corresponding actions, so that the underwater valve is opened and closed. The full-electric underwater control device provided by the invention omits a hydraulic loop, greatly reduces equipment cost, omits the use of pipeline hydraulic oil, reduces environmental pollution, and has deeper working depth, high efficiency, small loss and high response speed compared with an electrohydraulic composite control device.

Description

All-electric underwater control device and oil extraction system

Technical Field

The invention relates to the field of offshore oil engineering equipment, in particular to an all-electric underwater control device and an oil extraction system.

Background

With the development of global economy, the quality of life and the level of people are continuously improved, and the use amount of various resources is continuously increased. The oil gas resource is one of main resources, and is an important guarantee for keeping economic development and maintaining daily life of people. In recent years, due to the continuous increase of the exploitation of oil and gas resources by human beings, the oil and gas resources on land are gradually consumed, the requirements of social development cannot be met, and the world gradually directs the eyes to wide sea.

In the process of offshore oil and gas exploitation, the underwater control system is a control part of the whole oil extraction system, is a key of offshore oil exploitation, and has an indispensable effect on the offshore oil exploitation. At present, an electrohydraulic composite underwater control system in exploitation of offshore oil in China still takes the dominant role, and along with the continuous increase of the exploration depth, the electrohydraulic composite underwater control system exposes out a plurality of problems of slow response, large volume, high cost, serious loss, frequent maintenance, environmental pollution and the like.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an all-electric underwater control device and an oil extraction system, and aims to solve the problems that an electro-hydraulic composite underwater control system is slow in response, large in size, high in cost, serious in loss, needs frequent maintenance, pollutes the environment and the like.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The invention provides an all-electric underwater control device, which comprises:

The device comprises a shell, wherein a first optical fiber connector, a wet-type plug electrical socket and at least one first electrical connector are arranged on the shell, the first optical fiber connector is used for being connected with a control system of a water platform, and the first electrical connector is used for being connected with a power supply system of the water platform;

The SEM cabins are arranged in the shell, each SEM cabin is provided with a second optical fiber connector and a second electrical connector, the second optical fiber connectors are connected with the first optical fiber connectors, and the second electrical connectors are connected with the first electrical connectors;

the driving cabins are arranged in the shell, and each driving cabin is provided with a third electric connector which is connected with the first electric connector, the second electric connector and the wet-type plug-and-pull electric socket.

The full-electric underwater control device provided by the invention further comprises a locking mechanism, wherein the locking mechanism is arranged on the shell and is used for locking or unlocking the shell and a wet-type plug-in electric plug on the christmas tree, and when the locking mechanism locks the shell and the wet-type plug-in electric plug, the wet-type plug-in electric socket is in plug connection with the wet-type plug-in electric plug.

According to the invention, the housing comprises:

A top plate on which the first optical fiber connector and the first electrical connector are disposed;

the wet type plug electric socket is arranged on the bottom plate;

The cylinder body is arranged between the top plate and the bottom plate, and the SEM cabin and the driving cabin are both arranged in the cylinder body.

According to the full-electric underwater control device provided by the invention, at least one layer of fixed support is further arranged in the cylinder, the SEM cabin is arranged on the fixed support positioned at the uppermost layer, and a plurality of driving cabins are distributed on the fixed support.

According to the full-electric underwater control device provided by the invention, the SEM cabin comprises a first cabin body and a first mounting plate arranged in the first cabin body, at least an SEM cabin power supply, a temperature and humidity transmitter, a pressure sensor, a wiring terminal, a PLC module and an optical fiber communication module are arranged on the first mounting plate, the SEM cabin power supply is connected between the second electric connector and the wiring terminal, the temperature and humidity transmitter, the pressure sensor, the PLC module and the optical fiber communication module are all connected with the wiring terminal, the PLC module is connected with the second optical fiber connector through the optical fiber communication module, and the PLC module is also connected with the temperature and humidity transmitter, the pressure sensor and the second electric connector.

According to the full-electric underwater control device provided by the invention, the driving cabin comprises a second cabin body and a second mounting plate arranged in the second cabin body, at least a relay, a driver and a driving cabin power supply are arranged on the second mounting plate, the third electric connector, the driving cabin power supply, the driver and the relay are sequentially connected, and the relay is connected with the wet-type plug electric socket through the third electric connector.

According to the full-electric underwater control device provided by the invention, the shell is also provided with a pressure compensation device.

According to the full-electric underwater control device provided by the invention, the shell is further provided with the plug, the oil filling hole and the oil discharging hole.

According to the full-electric underwater control device provided by the invention, the shell is also provided with a hoisting interface.

The invention also provides an oil extraction system which comprises the all-electric underwater control device.

Due to the adoption of the technical scheme, the invention has the following advantages:

The invention provides an all-electric underwater control device which comprises a shell, at least one SEM cabin and a plurality of driving cabins. The shell is provided with a first optical fiber connector, a first electric connector and a wet-type plug electric socket, wherein the first optical fiber connector is used for being connected with a control system of the water platform, and the first electric connector is used for being connected with a power supply system of the water platform. The SEM cabins are arranged in the shell, each SEM cabin is provided with a second optical fiber connector and a second electric connector, the second optical fiber connectors of the SEM cabins are connected with the first optical fiber connectors, and the second electric connectors are connected with the first electric connectors. The plurality of driving cabins are all arranged in the shell, and each driving cabin is provided with a third electric connector which is connected with the first electric connector, the second electric connector and the wet type plug electric socket.

When in work, the all-electric underwater control device is connected with the Christmas tree. The power supply system of the water platform supplies power to the SEM cabin and the driving cabin through the first electric connector, the second electric connector and the third electric connector, the control system of the water platform sends a control instruction to the SEM cabin through the optical fiber, the first optical fiber connector and the second optical fiber connector, the control instruction is converted into an electric signal in the SEM cabin, the electric signal enters the driving cabin through the second electric connector and the third electric connector, the driving cabin sends a corresponding electric signal to an underwater valve actuator on the Christmas tree through a wet-type plug electric socket, and the underwater valve actuator is controlled to execute corresponding actions, so that the opening and closing of the underwater valve are realized.

The full-electric underwater control device provided by the invention omits a hydraulic loop, greatly reduces equipment cost, omits the use of pipeline hydraulic oil, reduces environmental pollution, and has deeper working depth, high efficiency, small loss and high response speed compared with an electrohydraulic composite control device.

Further, in the oil recovery system provided by the invention, the all-electric underwater control device is arranged, so that the same advantages as those described above are achieved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like parts are designated with like reference numerals throughout the drawings. In the drawings:

Fig. 1 is a schematic structural diagram of an all-electric underwater control device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an all-electric underwater control device according to an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of an all-electric underwater control device according to an embodiment of the present invention;

FIG. 4 is a schematic view of the internal structure of an SEM capsule provided by one embodiment of the invention;

Fig. 5 is a schematic view showing an internal structure of a driving cabin according to an embodiment of the present invention.

The figures are marked as follows:

100: an SEM cabin; 110: a second optical fiber splice; 120: a second electrical connector; 130: a first mounting plate; 140: SEM cabin power supply; 150: a temperature and humidity transmitter; 160: a pressure sensor; 170: a connection terminal; 180: a PLC module; 190: an optical fiber communication module; 200: a drive cabin; 210: a third electrical connector; 220: a second mounting plate; 230: a relay; 240: a driver; 250: a drive cabin power supply; 310: a top plate; 311: a first optical fiber splice; 312: a first electrical connector; 313: hoisting the interface; 320: a bottom plate; 321: wet plug-in electric socket; 330: a cylinder; 340: a fixed bracket; 400: a pressure compensation device; 500: wet plug-in and plug-out electric plug.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The invention provides an all-electric underwater control device which is used for realizing information interaction with a control system of a water platform through an SEM cabin, wherein the SEM cabin is used for converting control signals into electric signals and sending the electric signals to a driving cabin, and the driving cabin controls corresponding valves on a christmas tree to be opened and closed according to the electric signals. The full-electric underwater control device provided by the invention omits a hydraulic circuit, greatly reduces equipment cost, omits the use of pipeline hydraulic oil, reduces environmental pollution, and has deeper working depth on the seabed, high efficiency, small loss and high response speed compared with an electrohydraulic composite control device.

The following describes in detail the all-electric underwater control device and the oil recovery system provided by the embodiment of the invention with reference to the accompanying drawings.

Referring to fig. 1 to 5, an all-electric underwater control device provided by an embodiment of the present invention includes a housing, at least one SEM cabin (underwater electronics module Subsea Electric Module) 100 and a plurality of driving cabins 200, where the SEM cabin 100 and the driving cabins 200 are disposed in the housing.

The housing is provided with a first optical fiber connector 311, a first electrical connector 312 and a wet-plug electrical receptacle 321. The first optical fiber connector 311 is in communication connection with a control system of the water platform through an optical fiber, the first electrical connector 312 is in electrical connection with a power supply system of the water platform through a cable, the wet plug electrical socket 321 is used for being connected with the wet plug electrical plug 500 on the christmas tree, and the wet plug electrical plug 500 is used for being electrically connected with each underwater valve actuator on the christmas tree.

Wherein the first optical fiber connector 311 and the first electrical connector 312 may be disposed at the top of the housing, and the wet-plug electrical receptacle 321 may be disposed at the bottom of the housing.

SEM cabins 100 are disposed within the housing, and a second optical fiber connector 110 and a second electrical connector 120 are disposed on each SEM cabin 100. The second optical fiber connector 110 on the SEM capsule 100 is connected with the first optical fiber connector 311, and information interaction with a control system of the water platform is realized through the first optical fiber connector 311 and the optical fiber. The second electrical connector 120 on SEM pod 100 is electrically connected to first electrical connector 312 such that the power supply system of the water platform provides power to the various electronic components within SEM pod 100 via first electrical connector 312 and second electrical connector 120.

A plurality of drive bays 200 are each disposed within the housing, and a third electrical connector 210 is disposed on each drive bay 200. The third electrical connector 210 on the drive bay 200 is connected to the first electrical connector 312 on the housing and the power supply system of the water platform supplies power to the drive bay 200 via the cable, the first electrical connector 312 and the third electrical connector 210. The third electrical connector 210 on the drive bay 200 is also connected to the second electrical connector 120 on the SEM bay 100, and after the SEM bay 100 converts the control signal to an electrical signal, the electrical signal is sent to the drive bay 200 through the second electrical connector 120 and the third electrical connector 210. The third electrical connector 210 on the driving cabin 200 is also connected with the wet-type plug electrical socket 321, and the driving cabin 200 sends the received electrical signals to the corresponding underwater valve actuator through the third electrical connector 210 and the wet-type plug electrical socket 321 to drive the underwater valve actuator to execute corresponding actions, so as to drive the underwater valve to be opened and closed.

In operation, the wet plug electrical socket 321 of the all-electric underwater control device is first connected with the wet plug electrical plug 500 on the christmas tree, and the wet plug electrical plug 500 is electrically connected with each valve actuator on the christmas tree.

The power supply system of the waterborne platform supplies power to SEM pod 100 via first electrical connector 312 and second electrical connector 120, while supplying power to drive pod 200 via first electrical connector 312 and third electrical connector 210. The control system of the water platform realizes information interaction with the SEM capsule 100 through the first optical fiber connector 311 and the second optical fiber connector 110.

After the SEM cabin 100 receives the control command of the control system of the water platform, the SEM cabin 100 converts the control signal into an electrical signal, the electrical signal enters the driving cabin 200 through the second electrical connector 120 of the SEM cabin 100 and the third electrical connector 210 of the driving cabin 200, and the driving cabin 200 transmits the electrical signal to the wet plug electrical plug 500 on the christmas tree through the third electrical connector 210 and the wet plug electrical socket 321, so as to control the corresponding underwater valve actuator to execute the opening or closing action, and realize the opening or closing of the corresponding underwater valve.

The full-electric underwater control device provided by the embodiment of the invention omits a hydraulic loop, greatly reduces equipment cost, omits the use of pipeline hydraulic oil, reduces environmental pollution, and has deeper working depth, high efficiency, small loss and high response speed compared with an electrohydraulic composite control device.

In some embodiments of the present invention, the housing includes a top plate 310, a bottom plate 320, and a cylinder 330, the top and bottom of the cylinder 330 are penetrated, and the top plate 310 and the bottom plate 320 are respectively closed at the top and bottom of the cylinder 330. Wherein, first fiber optic connector 311 and first electrical connector 312 are disposed on top plate 310, wet plug electrical receptacle 321 is disposed on bottom plate 320, and SEM capsule 100 and drive capsule 200 are both disposed within barrel 330.

Further, at least one layer of fixing support 340 is further disposed in the barrel 330, and since the first optical fiber connector 311 and the first electrical connector 312 are disposed at the top of the housing, for convenience of connection, the SEM pod 100 may be disposed on the fixing support 340 located at the uppermost layer, and the plurality of driving pods 200 may be distributed on the plurality of fixing supports 340.

In one particular embodiment, SEM bay 100 is provided in two, drive bay 200 is provided in twenty four, and mounting bracket 340 is provided in two layers. Two SEM cabins 100 are provided on a fixed support 340 near the top, preferably two SEM cabins 100 are provided 180 degrees apart around the axis of the housing. Ten of the driving cabins 200 are respectively disposed at both sides of two SEM cabins 100, five are disposed at each side, and the remaining fourteen driving cabins 200 are disposed on the fixing support 340 of the lower layer.

Each SEM pod 100 has a second optical fiber connector 110 and a second electrical connector 120 disposed thereon, and the top of the housing may have two first electrical connectors 312 and one first optical fiber connector 311 disposed thereon. The first optical fiber connectors 311 are in communication connection with the control system of the water platform through optical fibers, and are in communication connection with the second optical fiber connectors 110 on the two SEM cabins 100, the two first electric connectors 312 are electrically connected with the power supply system of the water platform through cables, and the two first electric connectors 312 are respectively connected with the second electric connectors 120 on the two SEM cabins 100 in a one-to-one correspondence manner.

A third electrical connector 210 is provided on each of the drive bays 200, the third electrical connector 210 being connected to the first electrical connector 312, the second electrical connector 120 and the wet plug electrical socket 321 simultaneously. Or two third electrical connectors 210 are provided on each driving bay 200, one of the first electrical connector 312, the second electrical connector 120 and the wet plug electrical socket 321 is connected to one of the third electrical connectors 210, and the other two are connected to the other third electrical connector 210. Or three third electrical connectors 210 are provided on each driving bay 200, and the first electrical connector 312, the second electrical connector 120 and the wet-type plug electrical socket 321 are connected to the three third electrical connectors 210 in a one-to-one correspondence.

It should be noted that two SEM cabins 100 are provided, and two SEM cabins 100 are respectively powered by two first electrical connectors 312, and both SEM cabins 100 can work independently, so that when one SEM cabin 100 fails, the other SEM cabin 100 works normally, thereby greatly reducing the failure rate of the all-electric underwater control device.

In some embodiments of the present invention, SEM cabin 100 includes a first cabin body and a first mounting plate 130 disposed in the first cabin body, and at least SEM cabin power supply 140, temperature and humidity transmitter 150, pressure sensor 160, connection terminal 170, PLC module 180, and fiber optic communication module 190 are disposed on first mounting plate 130.

The SEM cabin power supply 140 is connected between the second electrical connector 120 and the connection terminal 170, and is used for converting external high voltage power into voltage power, the temperature and humidity transmitter 150, the pressure sensor 160, the PLC module 180 and the optical fiber communication module 190 are all connected with the connection terminal 170 in a plugging manner, and at this time, the power supply system of the water platform supplies power to the temperature and humidity transmitter 150, the pressure sensor 160, the PLC module 180 and the optical fiber communication module 190 through the cable, the first electrical connector 312, the second electrical connector 120 and the connection terminal 170.

The second optical fiber connector 110, the optical fiber communication module 190, the PLC module 180 and the second electrical connector 120 are sequentially connected, and the control system of the water platform realizes information interaction with the optical fiber communication module 190 through the optical fibers, the first optical fiber connector 311 and the second optical fiber connector 110. The optical fiber communication module 190 sends the control command of the water platform to the PLC module 180, the PLC module 180 converts the control command into an electric signal and then sends the electric signal to the driving cabin 200 through the second electric connector 120, and the driving cabin 200 drives a motor in an underwater valve actuator on the christmas tree to complete a working command according to the control command, so that the underwater valve is opened and closed.

Meanwhile, the temperature and humidity transmitter 150 and the pressure sensor 160 are connected with the PLC module 180, monitor the temperature and humidity and pressure conditions inside the SEM cabin 100 in real time, and feed back to the water platform through the PLC module 180.

In some embodiments of the invention, the drive bay 200 includes a second bay body and a second mounting plate 220 disposed within the second bay body, with at least a relay 230, a driver 240, and a drive bay power supply 250 disposed on the second mounting plate 220.

The third electrical connector 210, the drive bay power supply 250, the driver 240, and the relay 230 are connected in sequence, and the relay 230 is connected to the wet-type plug electrical outlet 321 through the third electrical connector 210. The third electrical connector 210 is used to introduce the high voltage electricity of the water platform into the drive bay 200, and the drive bay power supply 250 converts the high voltage electricity to low voltage electricity to power the driver 240 and the relay 230.

The driver 240 is configured to receive a control command sent by the PLC module 180 in the SEM cabin 100, and further control the relay 230 to be powered on or off, so as to control the motor in the underwater valve actuator on the christmas tree to complete a working command, and the motor feeds back a signal to the PLC module 180 in real time.

In some embodiments of the invention, a pressure compensation device 400 is also provided on the housing to balance the internal and external pressure differences inside and outside the housing in a deepwater environment.

In some embodiments of the invention, the shell is further provided with a plug, an oil filling hole and an oil discharging hole. During operation, the plug can be detached, the inside of the shell is vacuumized, and meanwhile, oil is injected into the shell through the oil injection hole, so that the water pressure outside the shell is resisted. The oil discharging hole is used for discharging pressure oil in the shell.

In some embodiments of the invention, a hoist interface 313 is also provided on the housing, the hoist interface 313 being for connection with an ROV (underwater robot Remotely Operated Vehicle) and simultaneously for connection with a hoist.

When the all-electric underwater control device is installed, the ROV is connected with the hoisting interface 313, the hoisting machine is connected with the hoisting interface 313, the all-electric underwater control device is lowered to the wet plug 500 of the christmas tree, and after the wet plug electrical socket 321 is connected with the wet plug electrical plug 500, the ROV can drive the locking mechanism to lock the shell with the wet plug electrical plug 500.

When the all-electric underwater control device breaks down and needs to be maintained, the ROV can drive the locking mechanism to unlock, and then the all-electric underwater control device is lifted to the water surface by using the lifting machinery.

The following describes in detail, through a specific embodiment, the installation process of the all-electric underwater control device provided by the embodiment of the invention:

1. Fixing an SEM cabin power supply 140, a temperature and humidity transmitter 150, a pressure sensor 160, a wiring terminal 170, a PLC module 180 and an optical fiber communication module 190 on a first mounting plate 130, connecting one end of the SEM cabin power supply 140 with a second electrical connector 120, connecting the other end of the SEM cabin power supply 140 with the wiring terminal 170, plugging the temperature and humidity transmitter 150, the pressure sensor 160, the PLC module 180 and the optical fiber communication module 190 on the wiring terminal 170, connecting one end of the optical fiber communication module 190 with a second optical fiber connector 110, connecting the other end of the optical fiber communication module 190 with the PLC module 180, connecting the temperature and humidity transmitter 150 and the pressure sensor 160 with the PLC module 180, fixing the first mounting plate 130 in a first cabin, and assembling a second SEM cabin 100 in the same way;

2. Two SEM cabins 100 are fixed on the uppermost fixing bracket 340 at intervals of 180 degrees around the center line of the housing;

3. The relay 230, the driver 240 and the driving cabin power supply 250 are fixed on the second mounting plate 220, one end of the driving cabin power supply 250 is connected with the third electric connector 210, the other end is connected with one end of the driver 240, the other end of the driver 240 is connected with one end of the relay 230, the other end of the relay 230 is connected with the third electric connector 210, then the second mounting plate 220 is fixed in the second cabin, and the other twenty-three driving cabins 200 are assembled in a similar way;

4. Ten of the drive bays 200 are disposed on the upper-layer fixing frame 340 around the SEM bay 100, and the remaining fourteen drive bays 200 are disposed on the lower-layer fixing frame 340;

5. The first electrical connector 312 is connected with the second electrical connector 120, the first electrical connector 312 is also connected with the third electrical connector 210, the second electrical connector 120 is connected with the third electrical connector 210, the third electrical connector 210 is also connected with the wet-type plug electrical socket 321, and the first optical fiber connector 311 is connected with the second optical fiber connector 110;

6. Securing the pressure compensator to the top plate 310;

7. fixing the wet-type plug electrical socket 321 on the bottom plate 320;

8. The top plate 310 and the bottom plate 320 are closed at both ends of the cylinder 330;

9. an ROV is used to lock the housing to a wet plug electrical plug 500 on the tree.

Further, the embodiment of the invention also provides an oil extraction system, which is provided with the all-electric underwater control device, thus having the same advantages as those described above, and the details are not repeated here.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. An all-electric underwater control device, characterized by comprising:

the device comprises a shell, wherein a first optical fiber connector (311), a wet-type plug electrical socket (321) and at least one first electrical connector (312) are arranged on the shell, the first optical fiber connector (311) is used for being connected with a control system of a water platform, and the first electrical connector (312) is used for being connected with a power supply system of the water platform;

At least one SEM cabin (100), wherein the SEM cabins (100) are arranged in the shell, each SEM cabin (100) is provided with a second optical fiber connector (110) and a second electrical connector (120), the second optical fiber connector (110) is connected with the first optical fiber connector (311), and the second electrical connector (120) is connected with the first electrical connector (312);

The driving cabins (200) are arranged in the shell, a third electric connector (210) is arranged on each driving cabin (200), and the third electric connector (210) is connected with the first electric connector (312), the second electric connector (120) and the wet type plug-and-pull electric socket (321).

2. The full-electric underwater control device according to claim 1, further comprising a locking mechanism, wherein the locking mechanism is arranged on the shell and is used for locking or unlocking the shell and a wet-type plug-and-socket (500) on a christmas tree, and when the locking mechanism locks the shell and the wet-type plug-and-socket (500), the wet-type plug-and-socket (321) is in plug connection with the wet-type plug-and-socket (500).

3. The all-electric subsea control device of claim 1, characterized in that the housing comprises:

-a top plate (310), the first optical fiber connector (311) and the first electrical connector (312) being arranged on the top plate (310);

A base plate (320), wherein the wet-type plug-and-play electric socket (321) is arranged on the base plate (320);

and the cylinder body (330), wherein the cylinder body (330) is arranged between the top plate (310) and the bottom plate (320), and the SEM cabin (100) and the driving cabin (200) are both arranged in the cylinder body (330).

4. An all-electric underwater control device according to claim 3, characterized in that at least one layer of fixing support (340) is further arranged in the cylinder (330), the SEM capsule (100) is arranged on the fixing support (340) positioned at the uppermost layer, and a plurality of driving capsules (200) are distributed on the fixing support (340).

5. The all-electric underwater control device according to any one of claims 1 to 4, characterized in that the SEM cabin (100) comprises a first cabin body and a first mounting plate (130) arranged in the first cabin body, at least an SEM cabin power supply (140), a temperature and humidity transmitter (150), a pressure sensor (160), a wiring terminal (170), a PLC module (180) and an optical fiber communication module (190) are arranged on the first mounting plate (130), the SEM cabin power supply (140) is connected between the second electric connector (120) and the wiring terminal (170), the temperature and humidity transmitter (150), the pressure sensor (160), the PLC module (180) and the optical fiber communication module (190) are all connected with the wiring terminal (170), the PLC module (180) is connected with the second optical fiber connector (110) through the optical fiber communication module (190), and the PLC module (180) is also connected with the temperature and humidity transmitter (150), the pressure sensor (160) and the second electric connector (120).

6. The full-electric underwater control device according to any one of claims 1 to 4, characterized in that the driving cabin (200) comprises a second cabin body and a second mounting plate (220) arranged in the second cabin body, at least a relay (230), a driver (240) and a driving cabin power supply (250) are arranged on the second mounting plate (220), the third electric connector (210), the driving cabin power supply (250), the driver (240) and the relay (230) are sequentially connected, and the relay (230) is connected with the wet-type plug-and-pull electric socket (321) through the third electric connector (210).

7. An all-electric subsea control device according to any of claims 1-4, characterized in that the housing is further provided with a pressure compensation device (400).

8. The full-electric underwater control device according to any one of claims 1 to 4, wherein a plug, an oil filling hole and an oil discharging hole are further provided on the housing.

9. An all-electric underwater control device according to any one of claims 1 to 4, characterized in that a hoisting interface (313) is also provided on the housing.

10. An oil recovery system comprising an all-electric subsea control device according to any of claims 1-9.