CN103114620B - High-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine and ditching technology - Google Patents
High-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine and ditching technology Download PDFInfo
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- CN103114620B CN103114620B CN201310062160.4A CN201310062160A CN103114620B CN 103114620 B CN103114620 B CN 103114620B CN 201310062160 A CN201310062160 A CN 201310062160A CN 103114620 B CN103114620 B CN 103114620B
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Abstract
The invention relates to a high-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine. The high-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine comprises a ditching machine body (1). The ditching machine body (1) comprises skids (1.1) which are arranged on the left and on the right and connected via two main beams (1.2), left and right two regulating longitudinal beams (1.3) are connected between the main beams (1.2), front and back two transverse beams (1.4) are connected between the two longitudinal beams (1.3), two ditching machine spraying pumps (1.5) are erected on the transverse beams (1.4), a front water spraying pipe guiding frame (1.6) is vertically mounted on the front mean beam (1.2), and a plurality of spray nozzles (1.6.1) are mounted on the front water spraying pipe guiding frame (1.6). The high-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine is good in ditching effect and high in efficiency.
Description
Technical field
The present invention relates to a kind of underwater trencher and ditching technique thereof, especially relate to a kind of trenching machine and ditching technique thereof for carrying out ditching operation to submerged pipeline.
Background technology
At present, ditching operation field under water, many employing contact trenching machines, namely ditching equipment is directly ridden on submerged pipeline by guide legs, carries out ditching operation; As " contact type submersible jetflow spray type ditch digging machine " that Chinese patent ZL200620026521.5 announces, it can realize ditching operation preferably, but also has the following disadvantages:
(1) cannot two sprays about trenching machine be rushed the gradient of the pump housing and be regulated front and back spray angle of attack degree, thus make it can only dig the ditch type of a certain specific width, and the trenching machine left and right pump housing of original formation " H " shape structure is located on a straight line, therefore can balance out a part of impulse force when operation is rushed in spray mutually, affect ditching effect;
(2) for some darker ditch types, the mud after spray punching cannot rush to outside ditch, and it still can be deposited on and not put in the ditch of pipeline, thus the ditching degree of depth is affected;
(3) during water jetting at high pressure cutting, adopt direct manner, cutting effect is not good, then needs the ditching of repeat impact ability shaping, have impact on operating efficiency for the sea bed that some soil properties are harder;
(4) the anti-negative pressure scarce capacity of skid, at depth of water place easily because the negative pressure of water is too high and cause deformation and damage to skid; Meanwhile, on the sea bed that some soil properties are softer, skid is easily absorbed in sea bed, affects construction operation.
(5) suspension hook when and suspension hook has been set up on trenching machine top, hoist cable connects frame, preventing construction operation, hoist cable draw, touch other parts of trenching machine and cause and stop construction phenomenon.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide and spray qi of chong channel ascending adversely before and after a kind of ditching is effective, efficiency is high high-power submerged jet and lift submerged pipeline trenching machine and ditching technique.
The object of the present invention is achieved like this: spray qi of chong channel ascending adversely before and after a kind of high-power submerged jet and lift submerged pipeline trenching machine, described trenching machine includes trenching machine body, described trenching machine body includes the skid arranged in left and right, connected by girder between two skids, two are provided with before and after described girder, be connected with two, left and right between two girders and regulate longeron, and regulate the front end of longeron and a girder to be hinged, the rear end of longeron is regulated to be flexibly connected mutually with another girder, two, front and back crossbeam is connected with between above-mentioned two adjustment longerons, having two trenching machine sprays to rush pump bracket is located on crossbeam, and trenching machine spray is rushed pump and is flexibly connected with crossbeam, two trenching machine sprays are rushed pump and are crisscross arranged, namely two trenching machine sprays rush pump one near the crossbeam being arranged at front, another is near the crossbeam being arranged at rear, the girder being positioned at front is vertically provided with jetting pipeline leading to frame, described jetting pipeline is leading installs multiple nozzle on frame.
Spray qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention and lift submerged pipeline trenching machine, the rear end of longeron is regulated vertically adjustable plate to be installed, this adjustable plate has multiple connecting hole one, junction plate is provided with on the girder regulating the rear end of longeron to be flexibly connected mutually, junction plate offering the connecting hole two with the corresponding coupling of connecting hole one on adjustable plate, regulating the rear end of longeron to be connected with the bolt in connecting hole two in connecting hole one by being inserted to between girder.
Spray qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention and lift submerged pipeline trenching machine, the pump housing that pump is rushed in trenching machine spray is connected with turning cylinder, described crossbeam is provided with bearing support, and rotating steadying bar to be located on bearing support thus to be realized trenching machine spray and rushes being flexibly connected of pump and crossbeam.
Spray qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention and lift submerged pipeline trenching machine, the upper and lower surface of described skid is arc and arranges, and the object that arc is arranged is: one is increase skid intensity, and two is strengthen anti-negative pressure ability.
Spray qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention and lift submerged pipeline trenching machine, described nozzle is the flared structure that the large external diameter of internal diameter is little, be installed on the leading nozzle bottom frame of jetting pipeline to arrange vertically downward, being installed on the leading nozzle to frame dead ahead of jetting pipeline is that to be arranged in jetting pipeline leading on frame for serpentine, is installed on that jetting pipeline is leading to be arranged obliquely to the nozzle on frame sidewall;
Before and after the high-power submerged jet of the present invention, submerged pipeline trenching machine is rushed in spray, the girder being positioned at rear is vertically provided with leading truck after gaslift pipeline, the valve be communicated with high pressure gas station is installed bottom leading truck after described gaslift pipeline, leading truck bottom open end 45 degree of oblique settings after described gaslift pipeline, the oblique outer setting in leading truck top after described gaslift pipeline.
Spray qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention and lift submerged pipeline trenching machine, the girder being positioned at rear is provided with track channel-section steel, after gaslift pipeline, leading truck is provided with the slide block inserted in above-mentioned track channel-section steel, described track channel-section steel and slide block are provided with installing hole, and after can realizing girder and gaslift pipeline by insertion bearing pin, leading truck is connected and fixed.
Before and after the high-power submerged jet of the present invention, submerged pipeline trenching machine is rushed in spray, described crossbeam is provided with rigging and connects frame, described girder is drawn by hoist cable and is connected with suspension hook.
Spray the ditching technique that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely before and after a kind of high-power submerged jet of the present invention, described ditching technique includes following processing step:
Step one, shooting, cutting, liquefaction operation: trenching machine ejects high-pressure water cutting sea bed sandy soil mud and liquefies, be installed on the water under high pressure directly vertical liquefaction of shooting downwards sea bed sandy soil, the mud of the leading nozzle injection bottom frame of jetting pipeline, be installed on water under high pressure that the leading S shape nozzle to frame dead ahead of jetting pipeline sprays to form eddy flow and carry out cutting liquefaction to sea bed sandy soil, mud, be installed on that jetting pipeline is leading to be penetrated water under high pressure obliquely to the nozzle on frame inside wall and carry out rake liquefy to cutting to pipeline bottom sea bed sandy soil, mud;
Operation is rushed in the spray of step 2, high-power, large discharge: trenching machine spray is rushed pump and sprayed powerful current downwards and carry out spray to the sea bed sandy soil mud that step one shoots cutting post liquefaction and rush, make sea bed sandy soil mud spray punching to take away with marine stream to both sides, thus form ditch; And spray is when rushing, uses two trenching machines sprays to rush pump (avoiding pipeline) and carry out left and right spray and rush operation, two trenching machines spray to rush before and after pump and arrange, and spray that to rush effect even more ideal.
The ditching technique that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely is sprayed before and after a kind of high-power submerged jet, described technique also includes step 3, leading truck after the gaslift pipeline being vertically installed on and being positioned on the girder at rear is included in this step, the valve be communicated with high pressure gas station is installed bottom leading truck after described gaslift pipeline, the oblique setting of leading truck bottom open end after described gaslift pipeline, the oblique outer setting in leading truck top after described gaslift pipeline; Step 2 broken up by leading truck after gaslift pipeline the mud, the sandy soil that back-silt in this step to lift outside ditch.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention can easily by regulating longeron to regulate the lateral inclination that pump is rushed in trenching machine spray, and trenching machine spray is rushed pump and is movably connected on crossbeam, therefore spray to trenching machine the front and back spray angle rushing pump also can regulate, thus make trenching machine of the present invention can be applicable to excavate the ditch of different in width specification, and the spray of two trenching machines is rushed pump and is crisscross arranged, make spray bath stream mutually unaffected, maximizedly add spray and rush effect, be conducive to improving ditching effect; Meanwhile, because nozzle is arranged at camber structure (as S shape), therefore, it is possible to form eddy flow, effectively the sandy soil mud on sea bed is cut, liquefied; And arcuate structure is all arranged in the upper and lower surface of skid, to the pressure on skid surface because negative pressure under water effectively can be born, and is arranged by the arc of soffit and alleviate the pressure of trenching machine to sea bed, contribute to improving efficiency of construction.
Accompanying drawing explanation
Fig. 1 sprays the system schematic that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention.
Fig. 2 sprays the front view that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention.
Fig. 3 sprays the lateral view that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention.
Fig. 4 sprays the top view that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention.
Wherein:
Trenching machine body 1, attitude monitoring instrument 2, preposition sonar surveillance device 3, rearmounted sonar surveillance device 4, GPS position indicator 5, hydraulic wireline winch 6,1# dynamicliquid pressure station 7,2# dynamicliquid pressure station 8, compressed air unit 9, high-pressure hydraulic pump unit 10, submerged pipeline 11, original sea bed 12, formation ditch shape 13;
Skid 1.1, girder 1.2, regulating the spray of longeron 1.3, crossbeam 1.4, trenching machine to rush, pump 1.5, jetting pipeline are leading connects frame 1.8, suspension hook 1.9 to leading truck 1.7, rigging after frame 1.6, gaslift pipeline;
Adjustable plate 1.3.1, junction plate 1.3.2;
Nozzle 1.6.1;
Track channel-section steel 1.7.1, slide block 1.7.2.
Detailed description of the invention
See Fig. 1 ~ 4, spray qi of chong channel ascending adversely before and after the high-power submerged jet of the one that the present invention relates to and lift submerged pipeline trenching machine, described trenching machine includes trenching machine body 1 and relevant matched auxiliaring equipment thereof, described trenching machine body 1 includes the skid 1.1(of the setting in left and right simultaneously in order to resistance to compression, described skid 1.1 upper, soffit is arc and arranges), connected by girder 1.2 between two skids 1.1, two are provided with before and after described girder 1.2, be connected with two, left and right between two girders 1.2 and regulate longeron 1.3, and regulate the front end of longeron 1.3 and a girder 1.2 to be hinged, the rear end of longeron 1.3 is regulated to be flexibly connected mutually with another girder 1.2, preferential, regulate the rear end of longeron 1.3 that adjustable plate 1.3.1 is vertically installed, this adjustable plate 1.3.1 has multiple connecting hole one, junction plate 1.3.2 is provided with on the girder 1.2 regulating the rear end of longeron 1.3 to be flexibly connected mutually, junction plate 1.3.2 offers the connecting hole two with the corresponding coupling of connecting hole one on adjustable plate 1.3.1, the rear end of longeron 1.3 is regulated to be connected in connecting hole one with the bolt in connecting hole two by being inserted to between girder 1.2, when needs regulate gradient, only bolt need be pulled up, lift and regulate longeron 1.3 to make it rotate to suitable position around the pin joint with girder 1.2, again plug bolt subsequently,
Two, front and back crossbeam 1.4 is connected with between above-mentioned two adjustment longerons 1.3, having two trenching machine sprays to rush pump 1.5 is set up on crossbeam 1.4, and trenching machine spray is rushed pump 1.5 and is flexibly connected with crossbeam 1.4, concretely, the pump housing that pump 1.5 is rushed in trenching machine spray is connected with turning cylinder, described crossbeam 1.4 is provided with bearing support, and rotating steadying bar to be located on bearing support thus to be realized trenching machine spray and rushes being flexibly connected of pump 1.5 and crossbeam 1.4; Those skilled in the art rush other movable connection methods of pump 1.5 and crossbeam 1.4, all within the protection domain of this patent according to the trenching machine spray that the design of this patent realizes; Simultaneously, two trenching machine sprays are rushed pump 1.5 and are crisscross arranged, namely two trenching machine sprays rush pump 1.5 1 near the crossbeam 1.4 being arranged at front, another is near the crossbeam 1.4 being arranged at rear, thus when spray is rushed, two trenching machines spray the current rushing pump 1.5 ejection and can not impact together, thus contribute to the operating efficiency providing trenching machine;
Above-mentioned trenching machine spray is rushed pump 1.5 and the trenching machine spray contrasted in patent ZL200620026521.5 can be adopted in background technology to rush pump, the spray of this trenching machine is rushed pump and is included the hydraulic motor be installed in the pump housing, the output shaft of motor is provided with impeller, and this impeller is positioned at pump housing top, in the above-mentioned pump housing, the deflector being positioned at motor bottom is installed simultaneously, described motor is axial flow motor, the described pump housing is provided with liquid inlet and outlet, overfall, liquid inlet and outlet, overfall and described motors are passed through through hydralic hose in dynamicliquid pressure station; Meanwhile, those skilled in the art adopts other forms of trenching machine to spray and rushes pump also all within the protection domain of this patent;
The girder 1.2 being positioned at front is vertically provided with jetting pipeline leading to frame 1.6, the girder 1.2 being positioned at rear is vertically provided with leading truck 1.7 after gaslift pipeline, described jetting pipeline is leading installs multiple nozzle 1.6.1 on frame 1.6, described nozzle 1.6.1 is the flared structure that the large external diameter of internal diameter is little, the above-mentioned leading nozzle 1.6.1 bottom frame 1.6 of jetting pipeline that is installed on is arranged vertically downward, the above-mentioned leading nozzle 1.6.1 to frame 1.6 dead ahead of jetting pipeline that is installed on is that to be arranged in jetting pipeline leading on frame 1.6 for serpentine, thus make the current penetrated to form eddy flow, increase ditching effect, above-mentionedly be installed on that jetting pipeline is leading to be arranged obliquely to the nozzle 1.6.1 on frame 1.6 sidewall, the valve be communicated with high pressure gas station is installed bottom leading truck 1.7 after described gaslift pipeline, leading truck 1.7 bottom open end 45 degree of oblique settings after described gaslift pipeline, for increasing aperture area, increase the soakage of silt, the oblique outer setting in leading truck 1.7 top after described gaslift pipeline, the silt for being sucked by leading truck 1.7 after gaslift pipeline is ejected into outside ditch, simultaneously, the girder 1.2 being positioned at rear is provided with track channel-section steel 1.7.1, after gaslift pipeline, leading truck 1.7 is provided with the slide block 1.7.2 inserted in above-mentioned track channel-section steel 1.7.1, described track channel-section steel 1.7.1 and slide block 1.7.2 is provided with installing hole, by being connected and fixed of leading truck 1.7 after inserting bearing pin and can realizing girder 1.2 and gaslift pipeline, thus after achieving gaslift pipeline, adjustment is moved in the oscilaltion of leading truck 1.7,
Described crossbeam 1.4 is provided with rigging and connects frame 1.8, during for constructing, placement suspension hook, hoist cable draw and other parts of trenching machine etc., described girder 1.2 is drawn by hoist cable and is connected with suspension hook 1.9;
The ditching technique of spraying qi of chong channel ascending adversely act submerged pipeline trenching machine before and after the high-power submerged jet of the present invention includes following processing step:
Step one, shooting, cutting, liquefaction operation: trenching machine ejects the sandy soil of high-pressure water cutting sea bed, mud liquefies, the water under high pressure being installed on the leading nozzle ejection bottom frame of jetting pipeline directly vertically impacts mud downwards, the water under high pressure being installed on the ejection of the jetting pipeline leading nozzle to frame dead ahead forms eddy flow and cuts mud, is installed on that jetting pipeline is leading to be sprayed water under high pressure obliquely to the nozzle on frame sidewall and carry out longitudinal cutting, liquefaction to sandy soil, mud;
Step 2, spray rush operation: trenching machine spray is rushed pump and sprayed that powerful current are shot step one, cut, the sandy soil of post liquefaction, mud carry out spray punching downwards, makes mud spray punching to both sides, thus formation ditch; And spray is when rushing, uses two trenching machines sprays to rush pump and carry out spray and rush operation, two trenching machines sprays are rushed before and after pump and are arranged, and spray that to rush effect even more ideal.
Step 3, step 2 broken up by leading truck after gaslift pipeline the mud, the sand that back-silt and lift outside ditch.
Record the data such as ditch depth according to sonar after completing above-mentioned steps, if do not reach designing requirement, then again repeat step one to three, until reach designing requirement.
Spray qi of chong channel ascending adversely before and after the high-power submerged jet of the present invention to lift the system that submerged pipeline trenching machine forms and also include attitude monitoring instrument 2, preposition sonar surveillance device 3, rearmounted sonar surveillance device 4, GPS position indicator 5, hydraulic wireline winch 6,1# dynamicliquid pressure station 7,2# dynamicliquid pressure station 8, compressed air unit 9 and high-pressure hydraulic pump unit 10; Wherein preposition sonar surveillance device 3 and rearmounted sonar surveillance device 4 can be monitored by the relative position in ditch the ditch shape of digging and submerged pipeline, GPS position indicator 5 is for carrying out the actual route locating of pipeline, to facilitate looking for pipeline 11, hydraulic wireline winch 6 is for drag and drop cable (comprise and control cable, hydralic hose, high-pressure air pipe etc.), and 1# dynamicliquid pressure station 7,2# dynamicliquid pressure station 8, compressed air unit 9 and high-pressure hydraulic pump unit 10 provide water under high pressure, high pressure gas and power fluid force feed.
Claims (10)
1. spray qi of chong channel ascending adversely before and after a high-power submerged jet and lift submerged pipeline trenching machine, described trenching machine includes trenching machine body (1), it is characterized in that: described trenching machine body (1) includes the skid (1.1) arranged in left and right, connected by girder (1.2) between two skids (1.1), two are provided with before and after described girder (1.2), be connected with two, left and right between two girders (1.2) and regulate longeron (1.3), and regulate the front end of longeron (1.3) and a girder (1.2) to be hinged, the rear end of longeron (1.3) is regulated to be flexibly connected mutually with another girder (1.2), two, front and back crossbeam (1.4) is connected with between above-mentioned two adjustments longeron (1.3), having two trenching machine sprays to rush pump (1.5) is set up on crossbeam (1.4), and trenching machine spray is rushed pump (1.5) and is flexibly connected with crossbeam (1.4), two trenching machine sprays are rushed pump (1.5) and are crisscross arranged, namely two trenching machine sprays rush pump (1.5) near the crossbeam (1.4) being arranged at front, another is near the crossbeam (1.4) being arranged at rear, the girder (1.2) being positioned at front is vertically provided with jetting pipeline leading to frame (1.6), described jetting pipeline is leading installs multiple nozzle (1.6.1) to frame (1.6) is upper.
2. spray qi of chong channel ascending adversely as claimed in claim 1 before and after a kind of high-power submerged jet and lift submerged pipeline trenching machine, it is characterized in that: regulate the rear end of longeron (1.3) that adjustable plate (1.3.1) is vertically installed, this adjustable plate (1.3.1) has multiple connecting hole one, junction plate (1.3.2) is provided with on the girder (1.2) regulating the rear end of longeron (1.3) to be flexibly connected mutually, junction plate (1.3.2) offers the connecting hole two with the corresponding coupling of connecting hole one on adjustable plate (1.3.1), the rear end of longeron (1.3) is regulated to be connected in connecting hole one with the bolt in connecting hole two by being inserted to between girder (1.2).
3. spray qi of chong channel ascending adversely as claimed in claim 1 before and after a kind of high-power submerged jet and lift submerged pipeline trenching machine, it is characterized in that: the pump housing that pump (1.5) are rushed in trenching machine spray is connected with turning cylinder, (1.4) are provided with bearing support to described crossbeam, and rotating steadying bar to be located on bearing support thus to be realized trenching machine spray and rushes being flexibly connected of pump (1.5) and crossbeam (1.4).
4. spray qi of chong channel ascending adversely before and after a kind of high-power submerged jet as described in claim 1,2 or 3 and lift submerged pipeline trenching machine, it is characterized in that: the upper and lower surface of described skid (1.1) is arc and arranges.
5. spray qi of chong channel ascending adversely before and after a kind of high-power submerged jet as described in claim 1,2 or 3 and lift submerged pipeline trenching machine, it is characterized in that: described nozzle (1.6.1) is the little flared structure of the large external diameter of internal diameter, be installed on the leading nozzle (1.6.1) to frame (1.6) bottom of jetting pipeline to arrange vertically downward, being installed on the leading nozzle (1.6.1) to frame (1.6) dead ahead of jetting pipeline, be arranged in jetting pipeline in serpentine leading on frame (1.6), is installed on that jetting pipeline is leading to be arranged obliquely to the nozzle (1.6.1) on frame (1.6) sidewall.
6. spray qi of chong channel ascending adversely before and after a kind of high-power submerged jet as described in claim 1,2 or 3 and lift submerged pipeline trenching machine, it is characterized in that: the girder (1.2) being positioned at rear is vertically provided with leading truck (1.7) after gaslift pipeline, after described gaslift pipeline, leading truck (1.7) bottom is provided with the valve be communicated with high pressure gas station, the oblique setting of leading truck (1.7) bottom open end after described gaslift pipeline, the oblique outer setting in leading truck (1.7) top after described gaslift pipeline.
7. spray qi of chong channel ascending adversely as claimed in claim 6 before and after a kind of high-power submerged jet and lift submerged pipeline trenching machine, it is characterized in that: the girder (1.2) being positioned at rear is provided with track channel-section steel (1.7.1), after gaslift pipeline, leading truck (1.7) is provided with the slide block (1.7.2) inserted in above-mentioned track channel-section steel (1.7.1), described track channel-section steel (1.7.1) and slide block (1.7.2) are provided with installing hole, and after can realizing girder (1.2) and gaslift pipeline by insertion bearing pin, leading truck (1.7) is connected and fixed.
8. spray qi of chong channel ascending adversely as claimed in claim 1 before and after a kind of high-power submerged jet and lift submerged pipeline trenching machine, it is characterized in that: described crossbeam (1.4) is provided with rigging and connects frame (1.8), described girder (1.2) is drawn by hoist cable and is connected with suspension hook (1.9).
9. spray the ditching technique that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely as claimed in claim 1 before and after a kind of high-power submerged jet, it is characterized in that: described ditching technique includes following processing step:
Step one, shooting, cutting, liquefaction operation: trenching machine ejects the sandy soil of high-pressure water cutting sea bed, mud liquefies, be installed on the leading water under high pressure sprayed to the nozzle (1.6.1) of frame (1.6) bottom of jetting pipeline and directly vertically impact mud downwards, be installed on the leading water under high pressure sprayed to the nozzle (1.6.1) in frame (1.6) dead ahead of jetting pipeline to form eddy flow and cut mud, be installed on that jetting pipeline is leading to be sprayed water under high pressure obliquely to the nozzle (1.6.1) on frame (1.6) sidewall and carry out longitudinal cutting, liquefaction to sandy soil, mud;
Step 2, spray rush operation: pump (1.5) is rushed in trenching machine spray, and downwards the powerful current of ejection are shot step one, cut, the sandy soil of post liquefaction, mud carries out spray punching, make mud spray punching to both sides, thus formation ditch; And spray is when rushing, uses two trenching machines sprays to rush pump (1.5) and carry out spray and rush operation, two trenching machines sprays are rushed before and after pump (1.5) and are arranged, and spray that to rush effect even more ideal.
10. spray the ditching technique that submerged pipeline trenching machine is lifted in qi of chong channel ascending adversely as claimed in claim 9 before and after a kind of high-power submerged jet, it is characterized in that: described technique also includes step 3, leading truck (1.7) after the gaslift pipeline on the girder (1.2) that is vertically installed on and is positioned at rear is included in this step, after described gaslift pipeline, leading truck (1.7) bottom is provided with the valve be communicated with high pressure gas station, the oblique setting of leading truck (1.7) bottom open end after described gaslift pipeline, the oblique outer setting in leading truck (1.7) top after described gaslift pipeline; Step 2 broken up by leading truck (1.7) after gaslift pipeline the mud, the sand that back-silt in this step to lift outside ditch.
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| CN201310062160.4A CN103114620B (en) | 2013-02-28 | 2013-02-28 | High-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine and ditching technology |
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| CN201310062160.4A CN103114620B (en) | 2013-02-28 | 2013-02-28 | High-power submersed front-and-back-flow-jetting air-lift submarine pipeline ditching machine and ditching technology |
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| CN103806484B (en) * | 2014-01-27 | 2017-02-15 | 杭州华能工程安全科技股份有限公司 | Air lifting underwater desilting construction method |
| CN105202262B (en) * | 2015-10-16 | 2017-07-18 | 上海交通大学 | Self-propelled submarine pipeline embedded device and its construction technology |
| CN109024741B (en) * | 2018-09-28 | 2024-03-26 | 大连理工大学 | Modularized seabed trencher |
| CN111456135B (en) * | 2020-04-30 | 2024-07-26 | 河南水泵厂集团有限公司 | Large-pipe diameter spray-flushing type ditcher |
| CN113187004A (en) * | 2021-03-16 | 2021-07-30 | 中交第三航务工程局有限公司江苏分公司 | Major-diameter sea pipeline notching device and forming method of groove |
| CN114411854B (en) * | 2022-02-23 | 2024-02-20 | 上海中车艾森迪海洋装备有限公司 | Ditching coulter for underwater cable laying |
| CN118727861A (en) * | 2023-10-26 | 2024-10-01 | 深海智人(广州)技术有限公司 | Submarine ditching, cable laying and pipe laying robot |
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| DE2905539A1 (en) * | 1978-02-16 | 1979-08-23 | Land & Marine Eng Ltd | DEVICE FOR MAKING A TRENCH |
| CN201268856Y (en) * | 2008-09-08 | 2009-07-08 | 刘明 | Submersible ditch excavator |
| 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 |
| CN102418358B (en) * | 2011-09-15 | 2013-08-07 | 天津俊昊海洋工程有限公司 | Power positioning jet-flow spraying type 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 |
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2013
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