CN106498998B - The underwater ditching device of formula and its trench digging method are penetrated in a kind of driving punching of the hydraulic turbine - Google Patents
The underwater ditching device of formula and its trench digging method are penetrated in a kind of driving punching of the hydraulic turbine Download PDFInfo
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- CN106498998B CN106498998B CN201610902425.0A CN201610902425A CN106498998B CN 106498998 B CN106498998 B CN 106498998B CN 201610902425 A CN201610902425 A CN 201610902425A CN 106498998 B CN106498998 B CN 106498998B
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- ditching
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- hydraulic turbine
- ditching machine
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses a kind of driving punchings of hydraulic turbine to penetrate the underwater ditching device of formula and its trench digging method.It is of high cost that formula ditching machine is penetrated in existing punching, or easily leakage hydraulic oil or construction is inconvenient.The hydraulic turbine of the present invention is arranged in ditching machine shell, and axial flow pump blade inner is fixed in the shaft of the hydraulic turbine；The hydraulic turbine water outlet of the hydraulic turbine is equipped with flow directing nozzles；Flow directing nozzles are fixed on ditching machine shell；Flow directing nozzles inner wall is equipped with guide vane；Switch board controls diesel engine；Diesel Driven high-pressure hydraulic pump；The input port of water-supply-pipe and the delivery outlet of high-pressure hydraulic pump connect；One delivery outlet of water-supply-pipe and the hydraulic turbine water inlet of the hydraulic turbine connect, another equipped at outlet port is equipped with valve；Umbilical cables are for hanging ditching machine and transmission signal；The ditching machine ditching depth signal of measurement is transferred to switch board by imaging sonar by umbilical cables.The present invention can assemble pressure spraying arm as needed, carry out multiple supply voltage spray punching, dig batt, can also avoid that hydraulic oil leakage occurs.
Description
Technical field
The invention belongs to Underwater Engineering or ocean engineering fields, and in particular to a kind of submarine pipeline, cable burial ditching machine
And its trench digging method.
Background technology
Seabed is placed on by cloth in many of marine petroleum exploitation and transoceanic communication pipeline, to protect the safe operation of pipeline
It needs to be buried and penetrates the good equipment that formula ditching machine is this work of completion with certain depth in subsea strata, punching.Pass through text
Offer the Chinese patent (publication date that retrieval finds Publication No. CN201410425564：On December 3rd, 2014, patent name：One
Kind seabed ditching device) it is driven using hydraulic motor, need auxiliary generator, motor, hydraulic motor, and very long hydraulic pressure
Pipeline, of high cost, hydraulic oil is easy leakage, pollution of marine environment.The Chinese patent of Publication No. CN200820015530 is (open
Date：On July 8th, 2009, patent name：Submersible ditch excavator)；Using two axial-flow pumps of hydraulic-driven as trench digging power, two
Platform axial-flow pump is fixed on frame, and by pallet support, which equally exists disadvantage of high cost, simultaneously because being moved using supporting plate
It is dynamic that towboat is needed to drag, it makes troubles to construction.
Invention content
The purpose of the present invention is the deficiency for existing ditcher, propose that a kind of hydraulic turbine driving punching penetrates formula and ditches under water dress
It sets and its trench digging method, multiple supply voltage spray punching can be carried out, dig the batt that traditional ditching machine can not be dug, can also keep away
Exempt from that hydraulic oil leakage occurs.
A kind of hydraulic turbine driving punching of the present invention penetrates the underwater ditching device of formula and supports system and underwater ditching machine system by the water surface
Composition；The water surface supports system to be made of lash ship, switch board, diesel engine, high-pressure hydraulic pump, water-supply-pipe and umbilical cables；It is described
Underwater ditching machine system include valve, ditching machine and imaging sonar.The ditching machine is by ditching machine shell, axial-flow pump leaf
Piece, the hydraulic turbine, flow directing nozzles and guide vane composition；The hydraulic turbine is arranged in ditching machine shell, and axial flow pump blade inner is solid
It is scheduled in the shaft of the hydraulic turbine；It is equipped with flow directing nozzles below the hydraulic turbine water outlet of the hydraulic turbine；Flow directing nozzles are fixed on ditching machine
On shell；Flow directing nozzles inner wall is equipped with guide vane；Switch board controls diesel engine；Diesel Driven high-pressure hydraulic pump；Water-supply-pipe
The delivery outlet of input port and high-pressure hydraulic pump connects；One delivery outlet of water-supply-pipe and the hydraulic turbine water inlet of the hydraulic turbine connect, separately
One equipped at outlet port is equipped with valve；One end of the umbilical cables is fixed on lash ship, and the other end is for hanging ditching machine；Described
Imaging sonar is fixed on ditching machine outer shell outer wall, and the ditching machine ditching depth signal of measurement is transferred to control by umbilical cables
Cabinet.
The input port that the water-supply-pipe sets valvular delivery outlet and pressure spraying arm is fixed by connecting flange.
The pressure spraying arm is made of pressure spraying arm shell and high pressure nozzle；The pressure spraying arm shell with
The delivery outlet of water-supply-pipe is fixed by connecting flange；The high pressure nozzle includes vertical nozzle and angled nozzle；Vertical nozzle
Both sides are arranged in, multiple angled nozzles are arranged between two vertical nozzles, the angle of adjacent inclined nozzle is 30~50 °, and phase
The inclined direction of adjacent angled nozzle is different.
A kind of hydraulic turbine driving punching of the present invention penetrates the underwater ditching device of formula and is less than 90KPa clays region in soil layer shearing strength
Trench digging method, it is specific as follows：
(1) after pipeline is laid, lash ship rests in above pipeline ditching operation, and valve is closed, by underwater ditching machine system
System into the water, makes underwater ditching machine system be located at right over pipeline, and flow directing nozzles are 1~1.5m at a distance from pipeline external wall.
(2) start diesel engine, high-pressure hydraulic pump is started to work, and the high pressure water flow that pressure is 1~2MPa is along water-supply-pipe from water wheels
Machine water inlet flows into, and is flowed out from hydraulic turbine water out；Under the driving of high pressure water flow, the hydraulic turbine is started to work, and drives axial-flow pump
Blade rotates, and generation flow is 15000m3/ h, the jet stream that flow velocity is 10m/s, wash away submarine soil layer, complete trench digging and make
Industry.
(3) the ditching machine ditching depth signal of measurement is transferred to switch board by imaging sonar by umbilical cables.
(4) ditching machine works on one side, and one edge setting path of lash ship moves forward, and completes ditching operation.
It is viscous more than or equal to 90KPa in soil layer shearing strength that the underwater ditching device of formula is penetrated in a kind of hydraulic turbine driving punching of the present invention
The trench digging method in native region, it is specific as follows：
(1) for ditching operation before pipeline is laid, water-supply-pipe sets the input port of valvular delivery outlet and pressure spraying arm
It is fixed by connecting flange, valve is opened.Lash ship rests against above setting path, into the water by underwater ditching machine system, makes
Underwater ditching machine system is located at right over work route, and high pressure nozzle is 1~1.5m at a distance from seabed.
(2) start diesel engine, high-pressure hydraulic pump is started to work, and pressure is a part of high pressure water flow of 1~2MPa along water-supply-pipe
It flows into from hydraulic turbine water inlet, is flowed out from hydraulic turbine water out；Under the driving of high pressure water flow, the hydraulic turbine is started to work, and is driven
Axial flow pump blade inner rotates, and generation flow is 15000m3/ h, the jet stream that flow velocity is 10m/s, wash away submarine soil layer, complete
Ditching operation.
(3) another part high pressure water is sprayed along different directions after high pressure nozzle and is rushed by flow direction valve pressure spraying arm
Batt is cut；And the jet stream that ditching machine sprays washes away the ball clay after cutting, to form the groove of needs.
(4) the ditching machine ditching depth signal of measurement is transferred to switch board by imaging sonar by umbilical cables.
(5) ditching machine works on one side, and one edge setting path of lash ship moves forward, and completes ditching operation.
Beneficial effects of the present invention：
The present invention only needs diesel engine and high-pressure hydraulic pump to drive, and eliminates generator, motor, hydraulic power unit, hydraulic motor
Contour cost apparatus so that cost reduces, and reliability is improved.Due to not having hydraulic system, hydraulic oil leakage will not occur,
Avoid the pollution to marine environment.Simultaneously the present invention can also carry out multiple supply voltage spray punching, can dig traditional ditching machine without
The batt that method is dug.Therefore, the present invention is adaptable to the Geological Environment Engineering in seabed, has broad application prospects.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the sectional view of ditching machine in the present invention.
Fig. 3 is the structural schematic diagram that arm is rushed in mesohigh of the present invention spray.
Specific implementation mode
As shown in Figure 1, the underwater ditching device of formula is penetrated in a kind of hydraulic turbine driving punching, system and underwater ditching machine are supported by the water surface
System forms；The water surface supports system to be made of lash ship 1, switch board 2, diesel engine 3, high-pressure hydraulic pump 4, water-supply-pipe 5 and umbilical cables 7；
Underwater ditching machine system is made of valve 6, ditching machine 8, imaging sonar 9, pressure spraying arm 10 and connecting flange 11.
As shown in Fig. 2, ditching machine 8 is by ditching machine shell 8-1, axial flow pump blade inner 8-2, hydraulic turbine 8-3, flow directing nozzles 8-6
It is formed with guide vane 8-7；Hydraulic turbine 8-3 is arranged in ditching machine shell 8-1, and axial flow pump blade inner 8-2 is fixed on hydraulic turbine 8-3
Shaft on；It is equipped with flow directing nozzles 8-6 below the hydraulic turbine water outlet 8-5 of hydraulic turbine 8-3；Flow directing nozzles 8-6 is fixed on trench digging
On machine shell 8-1；Flow directing nozzles 8-6 inner walls are equipped with guide vane 8-7, play the guiding role to flow.Lash ship 1 is entire water surface branch
The carrier of system is held, switch board 2 controls diesel engine 3；Diesel engine 3 drives high-pressure hydraulic pump 4；The input port of water-supply-pipe 5 and high pressure water
The delivery outlet connection of pump 4；One delivery outlet of water-supply-pipe 5 is connect with the hydraulic turbine water inlet 8-4 of hydraulic turbine 8-3, another is defeated
It exports and is fixed by connecting flange 11 with the input port of pressure spraying arm 10；Water-supply-pipe 5 generates high-pressure hydraulic pump 4 a part of high
Pressure flow is transported to hydraulic turbine 8-3 to drive the hydraulic turbine, another part high pressure water flow to be transported to pressure spraying arm 10；Umbilical cables 7
One end be fixed on lash ship 1, the other end is for hanging ditching machine；Imaging sonar 9 is fixed on ditching machine shell 8-1 outer walls,
The ditching machine ditching depth signal of measurement is transferred to switch board 2 by umbilical cables 7.
5 equipped at outlet port of water-supply-pipe being connect with 10 input port of pressure spraying arm is equipped with valve 6, and control flows to pressure spraying arm
Flow.
As shown in figure 3, pressure spraying arm is made of pressure spraying arm shell 10-1 and high pressure nozzle；Pressure spraying arm shell
The delivery outlet of 10-1 and water-supply-pipe 5 are fixed by connecting flange 11；High pressure nozzle includes vertical nozzle 10-2 and angled nozzle 10-
3；Vertical nozzle 10-2 is arranged in both sides, and six angled nozzle 10-3, adjacent inclined spray are arranged between nozzle 10-2 two vertical
The angle of mouth 10-3 is 40 °, and the inclined direction of adjacent inclined nozzle 10-3 is different.
Pressure spraying arm 10 can be dismantled, and can determine the need for pressure spraying according to the geological conditions of subsea strata,
When subsea strata shearing strength is big, then pressure spraying arm is installed, to cut batt.When stratum shearing strength is smaller, then
Pressure spraying arm is not installed, power consumption is reduced.
Trench digging pattern there are two types of the underwater ditching devices of formula is penetrated in hydraulic turbine driving punching, specific as follows：
1, height-low pressure washes ditch pattern (first ditching operation pattern) open in conjunction with spray
The pattern is suitble in batt region ditching operation (soil layer shearing strength is more than 90KPa), and ditching operation is in pipeline
Deployment before, detailed process is as follows：
(1) lash ship rests against above the work route planned, into the water by underwater ditching machine system, is located at work
Right over industry route, pressure spraying arm is close to seabed hard formation.Ditching machine system includes under water：Ditching machine, valve, pressure spraying
Arm, valve are in an open state.
(2) start diesel engine, high-pressure hydraulic pump is started to work, and pressure is a part of high pressure water flow of 1~2MPa along water-supply-pipe
It flows into from hydraulic turbine water inlet 5-4, is flowed out from hydraulic turbine water out 5-5；Under the driving of high pressure water flow, the hydraulic turbine starts work
Make, it is 15000m to drive axial flow pump blade inner rotation, generation flow3/ h, the jet stream that flow velocity is 10m/s, rush submarine soil layer
Brush completes ditching operation.
(3) another part high pressure water is by flow direction valve pressure spraying arm, along different directions spray punching to hard after nozzle
Clay is cut；And the jet stream that ditching machine sprays washes away the ball clay after cutting, to form the groove of needs.
(4) the ditching machine ditching depth signal of measurement is transferred to switch board 2 by imaging sonar by umbilical cables 7.
(5) ditching machine works on one side, and one edge setting path of lash ship moves forward, and completes ditching operation.
2, ditch pattern (post-trenching work pattern) is washed in low pressure spray open
The pattern is suitble in unselected clay region ditching operation (soil layer shearing strength is less than 90KPa), and ditching operation carries out
Later, pipeline has been laid on seabed, and detailed process is as follows：
(1) lash ship rests in above pipeline, into the water by underwater ditching machine system, is located at right over pipeline, leads
Flow nozzle 8-6 is close to pipeline.Underwater ditching machine system does not carry pressure spraying arm, and valve is closed；
(2) start diesel engine, high-pressure hydraulic pump is started to work, and the high pressure water flow that pressure is 1~2MPa is along water-supply-pipe from water wheels
Machine water inlet 5-4 is flowed into, and is flowed out from hydraulic turbine water out 5-5；Under the driving of high pressure water flow, the hydraulic turbine is started to work, and is driven
Axial flow pump blade inner rotates, and generation flow is 15000m3/ h, the jet stream that flow velocity is 10m/s, wash away submarine soil layer, complete
Ditching operation.
(3) the ditching machine ditching depth signal of measurement is transferred to switch board 2 by imaging sonar by umbilical cables 7.
(4) ditching machine works on one side, and one edge setting path of lash ship moves forward, and completes ditching operation.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention, and protection scope of the present invention should be limited to the appended claims.
Claims (5)
1. the underwater ditching device of formula is penetrated in a kind of hydraulic turbine driving punching, it is characterised in that：System and underwater ditching machine are supported by the water surface
System forms；The water surface supports system to be made of lash ship, switch board, diesel engine, high-pressure hydraulic pump, water-supply-pipe and umbilical cables；
The underwater ditching machine system includes valve, ditching machine and imaging sonar；The ditching machine is by ditching machine shell, axial-flow pump
Blade, the hydraulic turbine, flow directing nozzles and guide vane composition；The hydraulic turbine is arranged in ditching machine shell, axial flow pump blade inner
It is fixed in the shaft of the hydraulic turbine；It is equipped with flow directing nozzles below the hydraulic turbine water outlet of the hydraulic turbine；Flow directing nozzles are fixed on trench digging
On machine shell；Flow directing nozzles inner wall is equipped with guide vane；Switch board controls diesel engine；Diesel Driven high-pressure hydraulic pump；Water-supply-pipe
Input port and high-pressure hydraulic pump delivery outlet connect；One delivery outlet of water-supply-pipe and the hydraulic turbine water inlet of the hydraulic turbine connect,
Another equipped at outlet port is equipped with valve；One end of the umbilical cables is fixed on lash ship, and the other end is for hanging ditching machine；It is described
Imaging sonar be fixed on ditching machine outer shell outer wall, the ditching machine ditching depth signal of measurement is transferred to control by umbilical cables
Cabinet processed.
2. the underwater ditching device of formula is penetrated in a kind of hydraulic turbine driving punching according to claim 1, it is characterised in that：The water delivery
The input port that pipe sets valvular delivery outlet and pressure spraying arm is fixed by connecting flange.
3. the underwater ditching device of formula is penetrated in a kind of hydraulic turbine driving punching according to claim 2, it is characterised in that：The height
Pressure spray is rushed arm and is made of pressure spraying arm shell and high pressure nozzle；The delivery outlet of the pressure spraying arm shell and water-supply-pipe is logical
Connecting flange is crossed to fix；The high pressure nozzle includes vertical nozzle and angled nozzle；In both sides, two hang down vertical arrangement of nozzles
To multiple angled nozzles are arranged between nozzle, the angle of adjacent inclined nozzle is 30~50 °, and the inclination side of adjacent inclined nozzle
To difference.
4. using a kind of hydraulic turbine driving punching described in claim 1 to penetrate the underwater ditching device of formula in soil layer shearing strength to be less than
The trench digging method in 90KPa clays region, it is characterised in that：This method is specific as follows：
(1) after pipeline is laid, lash ship rests in above pipeline ditching operation, and valve is closed, and underwater ditching machine system is put
Enter in water, underwater ditching machine system is made to be located at right over pipeline, flow directing nozzles are 1~1.5m at a distance from pipeline external wall；
(2) start diesel engine, high-pressure hydraulic pump is started to work, and pressure is that the high pressure water flow of 1~2MPa enters along water-supply-pipe from the hydraulic turbine
The mouth of a river flows into, and is flowed out from hydraulic turbine water outlet；Under the driving of high pressure water flow, the hydraulic turbine is started to work, and drives axial flow pump blade inner
Rotation, generate flow be 15000m3/h, the jet stream that flow velocity is 10m/s, submarine soil layer is washed away, complete ditching operation；
(3) the ditching machine ditching depth signal of measurement is transferred to switch board by imaging sonar by umbilical cables；
(4) ditching machine works on one side, and one edge setting path of lash ship moves forward, and completes ditching operation.
5. using a kind of hydraulic turbine driving punching described in claim 3 penetrate the underwater ditching device of formula be more than in soil layer shearing strength or
Equal to the trench digging method in 90KPa clays region, it is characterised in that：This method is specific as follows：
(1) before pipeline is laid, the input port that water-supply-pipe sets valvular delivery outlet and pressure spraying arm passes through ditching operation
Connecting flange is fixed, and valve is opened；Lash ship rests against above setting path, into the water by underwater ditching machine system, makes underwater
Ditching machine system is located at right over work route, and high pressure nozzle is 1~1.5m at a distance from seabed；
(2) start diesel engine, high-pressure hydraulic pump is started to work, and a part of high pressure water flow that pressure is 1~2MPa is along water-supply-pipe from water
Turbine water inlet flows into, and is flowed out from hydraulic turbine water outlet；Under the driving of high pressure water flow, the hydraulic turbine is started to work, band moving axis stream
Pump blade rotate, generate flow be 15000m3/h, the jet stream that flow velocity is 10m/s, submarine soil layer is washed away, complete trench digging
Operation；
(3) another part high pressure water is by flow direction valve pressure spraying arm, along different directions spray punching to hard after high pressure nozzle
Clay is cut；And the jet stream that ditching machine sprays washes away the ball clay after cutting, to form the groove of needs；
(4) the ditching machine ditching depth signal of measurement is transferred to switch board by imaging sonar by umbilical cables；
(5) ditching machine works on one side, and one edge setting path of lash ship moves forward, and completes ditching operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902425.0A CN106498998B (en) | 2016-10-17 | 2016-10-17 | The underwater ditching device of formula and its trench digging method are penetrated in a kind of driving punching of the hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902425.0A CN106498998B (en) | 2016-10-17 | 2016-10-17 | The underwater ditching device of formula and its trench digging method are penetrated in a kind of driving punching of the hydraulic turbine |
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| CN106498998A CN106498998A (en) | 2017-03-15 |
| CN106498998B true CN106498998B (en) | 2018-11-02 |
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| CN201610902425.0A Expired - Fee Related CN106498998B (en) | 2016-10-17 | 2016-10-17 | The underwater ditching device of formula and its trench digging method are penetrated in a kind of driving punching of the hydraulic turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112942464B (en) * | 2021-02-09 | 2022-06-17 | 浙江省海洋开发研究院 | Seabed fluting rotary-cut device |
| CN114934554B (en) * | 2022-05-31 | 2023-08-11 | 西安市第二市政工程公司 | Grooving process of ditcher |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598666U (en) * | 2010-01-29 | 2010-10-06 | 天津俊昊海洋工程有限公司 | Contact-type submersible jetting gaslift ditcher |
| CN203188268U (en) * | 2013-02-28 | 2013-09-11 | 江苏华西村海洋工程服务有限公司 | High-power submersible flow jetting front-and-back spraying gas lift subsea pipeline trencher |
| CN203475499U (en) * | 2013-08-19 | 2014-03-12 | 江苏华西村海洋工程服务有限公司 | Deep-trench digging working device for submarine construction of submarine pipeline |
| CN204001006U (en) * | 2014-08-27 | 2014-12-10 | 张家港市海工船舶机械制造有限公司 | A kind of seabed ditching device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931326A (en) * | 1982-08-15 | 1984-02-20 | Nippon Telegr & Teleph Corp <Ntt> | Submarine cable burying machine |
| HUE024532T2 (en) * | 2012-01-31 | 2016-01-28 | Bauer Spezialtiefbau | Assembly and method for manufacturing a slotted wall element |
-
2016
- 2016-10-17 CN CN201610902425.0A patent/CN106498998B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598666U (en) * | 2010-01-29 | 2010-10-06 | 天津俊昊海洋工程有限公司 | Contact-type submersible jetting gaslift ditcher |
| CN203188268U (en) * | 2013-02-28 | 2013-09-11 | 江苏华西村海洋工程服务有限公司 | High-power submersible flow jetting front-and-back spraying gas lift subsea pipeline trencher |
| CN203475499U (en) * | 2013-08-19 | 2014-03-12 | 江苏华西村海洋工程服务有限公司 | Deep-trench digging working device for submarine construction of submarine pipeline |
| CN204001006U (en) * | 2014-08-27 | 2014-12-10 | 张家港市海工船舶机械制造有限公司 | A kind of seabed ditching device |
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