CN210482418U - Deepwater non-contact burying device - Google Patents
Deepwater non-contact burying device Download PDFInfo
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- CN210482418U CN210482418U CN201921114102.0U CN201921114102U CN210482418U CN 210482418 U CN210482418 U CN 210482418U CN 201921114102 U CN201921114102 U CN 201921114102U CN 210482418 U CN210482418 U CN 210482418U
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- 230000008569 process Effects 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
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- 238000009413 insulation Methods 0.000 description 3
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- 239000002689 soil Substances 0.000 description 3
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- 239000013535 sea water Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
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- 238000011109 contamination Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000005381 potential energy Methods 0.000 description 1
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Abstract
The utility model relates to a deepwater non-contact embedding device in the field of seabed embedding mechanical devices, which comprises an axial flow pump, a frame, a jet manifold device, a heading adjusting device, an underwater hydraulic device and an underwater electric control device; the jet flushing manifold device comprises a manifold and a nozzle, and the flow outlet of the axial flow pump is communicated with the manifold; the bow direction adjusting device is composed of a jet flow propelling device which is communicated with the outlet of the axial flow pump; the underwater hydraulic device comprises an underwater motor, a hydraulic pump, an oil tank and a valve box, and is connected with the heading adjusting device; the underwater electric control device comprises a controller and a sensor, wherein the controller is used for collecting information collected by the sensor and realizing remote control on the hydraulic valve; the axial flow pump, the jet manifold device, the heading adjusting device, the underwater hydraulic device and the underwater electric control device are all arranged on the frame. The utility model discloses can effectively avoid the hidden danger of damage to submarine pipeline at the ditching operation in-process.
Description
Technical Field
The utility model relates to a mechanical device field is buried underground in the seabed, specifically relates to a device is buried underground to deep water non-contact.
Background
In China, the sea area is vast, the coast is long, and the power supply of the coastal islands needs to be connected with a mainland main power grid by adopting submarine power cables (sea cables for short) to realize the networking among the islands. With the rise of ocean economy, the demand of sea island power is rapidly increased, the exploitation of energy sources such as offshore oil and natural gas needs reliable power to guarantee, and new energy sources such as offshore wind power plants and tidal energy need to safely and reliably transmit the generated clean power, so that a large number of submarine cables are required to be used as power channels to be connected with a power grid. The laying mode of the submarine cable comprises 2 types of throwing and deep burying: the throwing mode is to utilize the dead weight of the sea cable to sink into the seabed, the construction is simple, the safety is poor, and particularly in a shallow sea fishing area, the fishing and the ship anchor are easy to damage. The deep burying mode is that the submarine cable is buried under the seabed by a certain depth by using burying equipment, namely a burying machine, so that the damage of manual operation is avoided, and the safety of the submarine cable is effectively protected. At present, a throwing mode is adopted for laying submarine cables in a deep water area, and the rest modes are basically deep-buried modes.
The maximum working depth of the existing skid-type pipe cable burying machine is 100 meters, but the working requirements are difficult to meet in large water depth and depth.
As a result of prior art search, japanese patent publication No. JP2000013947A entitled an embedding machine apparatus that helps partially control the flow rate and pressure of pressure feed water, suppresses the problem of contamination of seawater, and facilitates excavation of viscous soil. The solution is as follows: an earth-moving machine 10 has a water jet cutting unit 12. The width of the scoop 12 is greater than the length. A plurality of water spray nozzles 14 are provided on the lower surface 12a of the excavation unit 12 so as to be able to swing with respect to the machine body 16 and sink into the sea bottom in an inclined posture. A plurality of water supply paths 18(18a, 18b, and 18c) are provided in the excavation unit 12. The water spray nozzles 14 are divided into a plurality of (e.g., 3) groups, and a plurality of water supply paths 18 are respectively connected to the groups of water spray nozzles. The burying machine can adapt to general shallow water operation, and has poor effect when the operation depth is more than 100 meters.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims at providing a deep water non-contact buries device underground.
According to the utility model provides a deep water non-contact embedding device, which comprises an axial flow pump, a frame, a jet manifold device, a heading adjusting device, an underwater hydraulic device and an underwater electric control device;
the jet flushing manifold device comprises a manifold and a nozzle, and the axial flow pump flow outlet is communicated with the manifold;
the bow direction adjusting device is composed of a jet flow propelling device with adjustable flow, and the jet flow propelling device is communicated with the outlet of the axial flow pump;
the underwater hydraulic device comprises an underwater motor, a hydraulic pump, an oil tank and a valve box, the underwater hydraulic device is connected with the heading adjusting device, and the underwater hydraulic device is used for driving and operating the heading adjusting device;
the underwater electric control device comprises a controller and a sensor, wherein the controller is used for acquiring information collected by the sensor and realizing remote control on the hydraulic valve;
the axial flow pump, the jet manifold device, the heading adjusting device, the underwater hydraulic device and the underwater electric control device are all arranged on the frame.
In some embodiments, the frame is a T-shaped frame, the upper layer of the frame is a main bearing frame, and the lower layer of the frame is a non-bearing protective frame.
In some embodiments, the axis of the axial pump is angled 30 ° to 45 ° from the central axis of the frame.
In some embodiments, the axial flow pumps are two groups, and the two groups of axial flow pumps are symmetrically distributed in a Y shape in the upper layer of the frame.
In some embodiments, each set of the axial flow pumps is communicated with one corresponding nozzle.
In some embodiments, the nozzle is a rubber nozzle.
In some embodiments, the outlet of the axial flow pump is provided with a check valve, and a short connecting pipe is arranged between the check valve and the manifold.
In some embodiments, the heading adjusting device is composed of 4 sets of flow-adjustable jet propulsion devices, and each jet propulsion device comprises a jet pipe which is communicated with the axial flow pump outlet.
In some embodiments, the controller system of the underwater electric control device is a non-similar dual-redundancy system formed by a PLC and an embedded controller PC 104.
In some embodiments, the subsea hydraulic device further comprises a pressure compensator that pressure compensates the hydraulic pump, the oil tank, the valve box, and the junction box.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. non-contact buries machine underground than traditional skid formula and buries machine underground, its biggest advantage is in "non-contact" ditching operation mode to avoid burying machine underground to the hidden danger of submarine pipeline damage in the ditching operation process, simultaneously the utility model discloses non-contact buries machine operation depth of water deepening underground, can reach 300 meters under water, make its operation sea area more broad, traditional skid formula buries machine maximum depth of water underground no longer than 100 meters.
2. The utility model discloses deep water non-contact buries device underground is equipped with 2 sets of sonars, altimeter, depth gauge, compass under water, supervisory equipment such as camera under water and leak, insulating, pressure monitoring device, can accomplish and look for pipe, location, monitoring ditching process key action such as ditching degree of depth to real time monitoring equipment stability and security, the technique, equip advanced.
3. The non-contact burying machine of the utility model is provided with 4 injection pipes, and can perform local direction adjustment, side pushing and other actions on the burying machine, so that the non-contact burying machine can find and position pipes during the trench digging operation under deep water;
drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a structural layout diagram of the present invention
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
As shown in fig. 1, the utility model provides a deep water non-contact embedding device, which comprises an axial flow pump 1, a frame 2, a jet manifold device 3, a heading adjusting device, an underwater hydraulic device and an underwater electric control device;
the jet manifold device 3 comprises a manifold 31 and a nozzle 32, and the flow outlet of the axial flow pump 1 is communicated with the manifold 31;
the bow direction adjusting device is composed of a jet flow propelling device with adjustable flow, and the jet flow propelling device is communicated with an outlet of the axial flow pump 1;
the underwater hydraulic device comprises an underwater motor, a hydraulic pump, an oil tank and a valve box, the underwater hydraulic device is connected with the heading adjusting device, and the underwater hydraulic device is used for driving and operating the heading adjusting device;
the underwater electric control device comprises a controller and a sensor, wherein the controller is used for acquiring information collected by the sensor and realizing remote control on the hydraulic valve;
the axial flow pump 1, the jet manifold device 3, the heading adjusting device, the underwater hydraulic device and the underwater electric control device are all arranged on the frame 2.
The non-contact burying machine is used for ditching submarine pipelines or cables under water, and has the following basic principle: the water flow generated by the large-flow axial-flow pump vertically impacts the seabed from the upper part of a pipeline, and the impact force generated by the action of the large-flow axial-flow pump on the seabed is enough to damage a seabed soil layer and even a clay layer due to the large flow and high flow speed of the water flow, so that the aim of ditching is fulfilled.
The operation process is that water flow is introduced into the jet manifold device 3 through the axial flow pump 1, the manifold 31 receives output flow from the axial flow pump 1 system, and the water flow with high flow rate and high flow speed vertically impacts the seabed from the upper part of the pipeline through the nozzle 32, so that the aims of breaking soil, carrying and the like are fulfilled. Wherein, a bow direction adjusting device which is arranged on the frame 2 and is communicated with the water outlet of the axial flow pump 1 adjusts the whole position of the frame 2 by the driving and the control of the underwater hydraulic device, thereby realizing the first direction stabilization and adjustment. The underwater hydraulic device comprises an underwater motor, a hydraulic pump, an oil tank, a valve box and the like, and driving objects of the underwater hydraulic device comprise a jet propulsion oil cylinder, a proportional valve control system, a holder swing oil cylinder, a TSS support driving oil cylinder, a multi-beam telescopic oil cylinder and a multi-beam pitching swing oil cylinder. In addition, the water inlet of the axial flow pump 1 is provided with at least one stage of filter screen to play a role in filtering impurities.
The underwater electric control device comprises a sonar, an altimeter, a depth meter, an underwater compass, an underwater camera, a water leakage alarm, an insulation monitoring device and a pressure monitoring device. The underwater electric control device collects information from various sensors through the controller and transmits related information to the water control system, so that remote control over the hydraulic valve is realized. The utility model discloses non-contact buries machine underground is equipped with 2 sets of sonars, altimeter, depth gauge, compass under water, supervisory equipment such as camera under water and leak, insulating, pressure monitoring device, can accomplish and look for pipe, location, monitoring ditching process key action such as ditching degree of depth to real time monitoring equipment stability and security, the technique, equip advance.
The axial flow pump, the jet manifold device, the heading adjusting device, the underwater hydraulic device and the underwater electric control device in the deep water non-contact burying device are all gathered in an underwater comprehensive wiring device, the underwater comprehensive wiring box is connected with an above-water power system, a control system and the like through an umbilical cable, and the underwater comprehensive wiring device comprises an oil-filled wiring box, a pressure compensator, a watertight penetrating body, an optical fiber plugging kit and a system.
The utility model discloses deep water non-contact buries device underground compares traditional skid formula machine of burying underground, and its biggest advantage is in "non-contact" ditching operation mode to avoid burying underground the hidden danger that the machine damaged the submarine pipeline at the ditching operation in-process. The non-contact burying machine has deeper operation water depth which can reach 300 meters under water, so that the operation sea area is wider, and the maximum water depth of the traditional skid-type burying machine is not more than 100 meters.
The frame 2 is a T-shaped frame, the upper layer of the frame 2 is a main bearing frame, and the lower layer is a non-bearing protective frame.
The upper main bearing frame of the frame 2 is provided with 4 sets of high-power axial-flow pumps, an underwater hydraulic system, a jet propulsion system, a manifold main body, an underwater monitoring system and the like; the lower layer frame is a non-bearing protective frame and mainly protects the internal nozzles to prevent the nozzles from being damaged due to collision with a ship board or a deck base when the burying machine lifts.
The included angle between the axis of the axial flow pump 1 and the central axis of the frame 2 is 30-45 degrees. The impact force of the gravity of the axial flow pump 1 and the water flow can generate large force in the operation process of the axial flow pump 1, and when the axial flow pump 1 is obliquely fixed on the frame 2, the acting force can be effectively decomposed, so that the axial flow pump 1 can be effectively fixed, and the whole device can run more stably.
The axial flow pumps 1 are two groups, and the two groups of axial flow pumps are symmetrically distributed in a Y shape in the upper layer of the frame 2. The non-contact burying machine mainly comprises 4 large-flow axial-flow pumps 1: the axial flow pumps 1 are divided into 2 groups, and 2 axial flow pumps 1 with the same steering direction are connected in parallel to form 1 group; the 2 groups of axial flow pumps 1 are distributed oppositely, and the rotating directions are opposite; the outlets of the two axial-flow pumps 1 meet the manifold 31 and then vertically lead out the spray pipes downwards, and the tail ends of the spray pipes are the conical nozzles 32. The external structure of the whole burying machine is Y-shaped, and an underwater hydraulic system, a junction box, an instrument cylinder, a lifting lug, a sensor unit and the like can be arranged at the upper part of the burying machine. A plurality of axial-flow pumps 1 are arranged in a Y-shaped structural mode, so that the whole embedding machine is compact in structure, the arrangement space is saved, and meanwhile, the hoisting operation is facilitated. The non-contact burying machine is provided with the special 80-ton gantry crane, so that the lowering and recovery operations are realized, and an external crane is not required, so that the lifting, trenching and recovery operations of the burying machine under severe sea conditions are improved.
Each group of the axial flow pumps 1 is correspondingly communicated with one nozzle 32. The spray system has different forms according to different pipe diameters. The 2 typical forms are a single nozzle form and a double nozzle form, respectively.
(1) Single nozzle form
The single nozzle is integrally T-shaped and is suitable for medium and small pipe diameters. The water flow enters the jet pipe after being converged at the center. The jet pipe is connected with the nozzle through the flange at the tail end, and the length of the jet pipe can be lengthened through increasing the short circuit under the condition of more silt, so that the phenomenon that excessive silt enters the axial-flow pump is avoided.
(2) The double nozzle form, the left and right 2 nozzles are arranged, the nozzles are downward and are inclined inward. The output of 2 axial-flow pumps is led into a left nozzle and a right nozzle. The double-nozzle form prevents the jet flow from directly acting on the top of the pipeline, and is suitable for the condition of large pipe diameter. In the above 2 forms, an auxiliary nozzle needs to be arranged to optimize the flow field.
The nozzle 32 is a rubber nozzle. The nozzle 32 made of rubber has certain elastic potential energy, and compared with a rigid nozzle, the rubber can effectively prevent the phenomenon of breakage and damage caused by collision in the deep sea operation process or the lifting process. Meanwhile, the rubber nozzle 32 is more beneficial to protecting the submarine cable.
The outlet of the axial flow pump 1 is provided with a check valve, and a short connecting pipe 5 is arranged between the check valve and the manifold 31. In order to prevent the water outlet of the axial flow pump 1 from flowing backwards, a check valve is arranged at the outlet of each set of axial flow pump. In consideration of the requirements of different pipe diameters and ditching widths, a nipple 5 is arranged between the check valve and the pipe manifold water inlet, and the width of the nozzle can be correspondingly adjusted between two gears of 1.6 meters and 2.2 meters.
The bow adjusting device is composed of 4 sets of flow-adjustable jet propulsion devices, each jet propulsion device comprises a jet pipe 4, and the jet pipes 4 are communicated with the outlet of the axial flow pump 1. The jet propulsion device comprises a hydraulic butterfly valve, a nozzle, a to-be-positioned feedback oil cylinder, a jet pipe 4, a proportional hydraulic system and a closed-loop control system, jet flow is introduced into the jet pipe 4 from an outlet of the axial flow pump 1 and is ejected out through the nozzle, namely, the heading adjustment is carried out through reaction force, and the heading adjustment angle is not less than 90 degrees in an underwater free state. The hydraulic butterfly valve matched angle encoder, the positioning sensor and the high-speed servo adjusting hydraulic cylinder enable the equipment to be accurately controlled. The utility model discloses non-contact buries machine underground and is equipped with 4 injection pipes to carry out the automation through the electronic valve and open, be used for carrying out actions such as local accent to, side push to burying the machine underground, make non-contact bury the machine underground and seek pipe, location when digging ditch operation under the deep water.
The controller system of the underwater electric control device is a non-similar dual-redundancy system formed by a PLC and an embedded controller PC 104. The main characteristics are as follows: the embedded controller PC104 and the PLC can realize the remote control of sensor acquisition and a hydraulic valve group and are backups for each other; the functions of thrust distribution, automatic orientation and automatic lateral position are realized by the information cooperation of the compass and the gyro lamp; a gate valve hydraulic cylinder and a gate valve position sensor form a closed loop in a proportional valve driving plate; the insulation and water leakage monitoring function is perfect; the insulation fault of the main peripheral component can be isolated by hardware on the water surface console; an underwater communication unit: and the dual-redundancy serial communication manager is matched with the water surface communication unit.
The underwater hydraulic device further comprises a pressure compensator which is used for carrying out pressure compensation on the hydraulic pump, the oil tank, the valve box and the junction box. In consideration of the particularity of underwater operation, the hydraulic system utilizes the pressure compensator to perform pressure compensation on the oil tank, the valve box and the junction box of the pump station, the design meets the operation requirement of 300 meters underwater, and meanwhile, the reliability and the seawater corrosion resistance of the system are also considered.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Claims (10)
1. The deepwater non-contact burying device is characterized by comprising an axial flow pump (1), a frame (2), a jet manifold device (3), a heading adjusting device, an underwater hydraulic device and an underwater electric control device;
the jet flushing manifold device (3) comprises a manifold (31) and a nozzle (32), and the flow outlet of the axial flow pump (1) is communicated with the manifold (31);
the bow direction adjusting device is composed of a jet flow propelling device with adjustable flow, and the jet flow propelling device is communicated with an outlet of the axial flow pump (1);
the underwater hydraulic device comprises an underwater motor, a hydraulic pump, an oil tank and a valve box, the underwater hydraulic device is connected with the heading adjusting device, and the underwater hydraulic device is used for driving and operating the heading adjusting device;
the underwater electric control device comprises a controller and a sensor, wherein the controller is used for acquiring information collected by the sensor and realizing remote control on the hydraulic valve;
the axial flow pump (1), the jet manifold device (3), the heading adjusting device, the underwater hydraulic device and the underwater electric control device are all arranged on the frame (2).
2. The deep water non-contact burying device according to claim 1, characterized in that said frame (2) is a T-shaped frame, the upper layer of said frame (2) is a main bearing frame, and the lower layer is a non-bearing protection frame.
3. Deep water non-contact burying device according to claim 1, characterised in that the angle between the axial line of said axial flow pump (1) and the central axis of said frame (2) is 30 ° -45 °.
4. A deepwater non-contact burying device according to claim 3, wherein the axial flow pumps (1) are divided into two groups, and the two groups of axial flow pumps are symmetrically arranged in a Y shape in the upper layer of the frame (2).
5. The deep water non-contact burying device according to claim 4, characterized in that each set of said axial flow pumps (1) is communicated with one said nozzle (32) correspondingly.
6. Deep water non-contact burying device according to claim 5, characterised in that said nozzles (32) are rubber nozzles.
7. Deep water non-contact burying device according to claim 1, characterised in that the outlet of said axial flow pump (1) is provided with a non-return valve, and that a nipple (5) is provided between said non-return valve and said manifold (31).
8. Deep water non-contact burying device according to claim 1, characterised in that said heading adjusting device is composed of 4 sets of flow adjustable jet propulsion devices, said jet propulsion devices comprise jet pipes (4), said jet pipes (4) are communicated with the outlet of said axial flow pump (1).
9. The deepwater non-contact burying device as recited in claim 1, wherein a controller system of the underwater electric control device is a non-similar dual-redundancy system formed by a PLC and an embedded controller PC 104.
10. The deepwater non-contact burying device as recited in claim 1, wherein the underwater hydraulic device further comprises a pressure compensator which pressure compensates the hydraulic pump, the oil tank, the valve box and the junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921114102.0U CN210482418U (en) | 2019-07-16 | 2019-07-16 | Deepwater non-contact burying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921114102.0U CN210482418U (en) | 2019-07-16 | 2019-07-16 | Deepwater non-contact burying device |
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| CN210482418U true CN210482418U (en) | 2020-05-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809692A (en) * | 2021-10-14 | 2021-12-17 | 亨通海洋工程有限公司 | An integrated machine for repairing, spraying, flushing and backfilling of submarine cables in offshore wind farms |
| CN118855028A (en) * | 2024-09-26 | 2024-10-29 | 深海智人(广州)技术有限公司 | Submarine trenching device and method |
-
2019
- 2019-07-16 CN CN201921114102.0U patent/CN210482418U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809692A (en) * | 2021-10-14 | 2021-12-17 | 亨通海洋工程有限公司 | An integrated machine for repairing, spraying, flushing and backfilling of submarine cables in offshore wind farms |
| CN118855028A (en) * | 2024-09-26 | 2024-10-29 | 深海智人(广州)技术有限公司 | Submarine trenching device and method |
| CN118855028B (en) * | 2024-09-26 | 2024-12-20 | 深海智人(广州)技术有限公司 | Submarine trenching device and method |
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