CN103215980A - Air-lift slurry discharge subsea pipeline on-line trenching equipment - Google Patents
Air-lift slurry discharge subsea pipeline on-line trenching equipment Download PDFInfo
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- CN103215980A CN103215980A CN2013101290859A CN201310129085A CN103215980A CN 103215980 A CN103215980 A CN 103215980A CN 2013101290859 A CN2013101290859 A CN 2013101290859A CN 201310129085 A CN201310129085 A CN 201310129085A CN 103215980 A CN103215980 A CN 103215980A
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Abstract
The invention discloses air-lift slurry discharge subsea pipeline on-line trenching equipment, whichcomprises a trencher, a working ship and a crane arranged on the working ship. A high pressure water and gas pipeline, a towing cable, a pressure fan, a gas storage tank, a winch, a water storage tank, a high pressure centrifugal pump, a switchboard and a generator are arranged at the periphery of a base of the crane. The working ship hangs the trencher and puts the trencher to a position of a subsea pipeline; and the trencher is provided and connected with conical nozzles, the high pressure water and gas pipeline, the towing cable and a slurry outlet buoy. The air-lift slurry discharge subsea pipeline on-line trenching equipment has the characteristics that the technical design is reasonable, hydraulic jet is distributed properly, and a trench is neat; a few hydraulic nozzles are arranged, the equipment has high efficiency and safety, is low in cost, easily, conveniently and quickly operated, accurately and flexibly controlled, safe and stable, solves the problem that on-line running subsea pipeline is exposed and suspended for a long distance, and is used for managing or demolishing waste subsea pipelines and cables; the trencher working underwater buries subsea pipelines by different depths and layers of 50cm, 100cm and 150cm under the condition that the subsea pipelines do not stop production; and the equipment is widelyapplied to paving, managing or demolishing the subsea pipelines.
Description
Technical field
Equipment is buried in the ditching that the present invention relates to submerged pipeline Control of Hidden in the marine petroleum exploitation, the online ditching equipment of particularly a kind of gaslift plasma discharge sea pipe.
Background technology
At present, pipeline ditching specialized apparatus is generally known traditional type trenching machine, belongs to ditching form behind the pipeline.For the submerged pipeline Control of Hidden, the one, adopt and fill out the mode that macadam overlay is established the chain row of concrete at the pipeline upthrow; The 2nd, adopt the method that bionical grass is established in the ramming overlay on pipeline, for the marine petroleum exploitation submerged pipeline is safeguarded the effect of having brought into play, but it exists following shortcoming or deficiency simultaneously: no matter 1. which kind of method all is to throw to fill out macadam overlay and establish the chain row of concrete or ramming and add and lay bionical grass on pipeline, these things of filling out the shop are easily washed away by the seawater ripple of upheaval, firmness is little, and the life-span is short; 2. the construction operation difficulty is big, the cycle is long; 3. jetting disperses, and jet length is too near, ditch shape irregularity; 4. hydrojet nozzle is many, and up to more than 80, construction operation efficient is low, the cost height.
Summary of the invention
The purpose of this invention is to provide the online ditching equipment of a kind of submerged pipeline, adopt the joint institution of trenching machine, Conic nozzle, pressure fan, gas storage, water tank, high pressure centrifugal pump, spray the mode of breaking through soil, gaslift plasma discharge, safe yield limit according to submerged pipeline, carry out the branch degree of depth, finish sea pipe at many levels and reasonably bury trench depth, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
The online ditching equipment of gaslift plasma discharge of the present invention sea pipe, comprise workboat and go up the loop wheel machine of installing, the gentle pipeline of water under high pressure, traction cable, pressure fan, gasholder, winch, water tank, high pressure centrifugal pump, switchboard, the generator installed around the base of loop wheel machine.Suspention or the trenching machine that pulls on the described workboat, trenching machine is put into the submerged pipeline place, installs on the trenching machine with to be connected the gentle pipeline of water under high pressure, traction cable and pulp cursory.
Wherein, described trenching machine is a tower structure, mainly connects into a general frame by end column, horizon bar, centre forward's column, brace, base plate, middle part horizon bar.Column top, end is equipped with upper sealing plate and hanger.The lower end of end column is equipped with dragging-shoe in turn.On the horizon bar of middle part blast tube is installed, Conic nozzle is installed on the blast tube.Blast tube is two, and at least one Conic nozzle is installed on each blast tube.Base plate is two, the structure that is parallel to each other and installs, and its middle part is equipped with the middle part horizon bar, and slurry recovering tube, water inlet pipe, guide peg, the gas bubble pump that is connected with slurry recovering tube and air inlet pipe and air supply pipe are installed on the horizon bar of middle part.
The present invention has following advantage compared with prior art:
1, technical design is reasonable, function advanced person, good integrity;
2, the jetting issue is suitable, and jet length meets the ditching requirement, and ditch shape is regular; Hydrojet nozzle is few, is 8, construction operation efficient height, and cost is low;
3, security alarm better function is provided with 30 tons of tensiometers on the trenching machine tracting cable, in operate as normal if, just quit work greater than 20-30% of correct tension; On directive wheel, be provided with the stress induction sensor, when directive wheel and petroleum pipeline impact force are just reported to the police during greater than 500-800kg.
4, simple and efficient to handle, precise control flexibly, safety and steady, time saving and energy saving, be easy to grasp;
5, solve the exposed and unsettled hidden danger of the long distance of on-line operation seabed pipeline, repeatedly excavate, reach robust purpose the projected depth position of buried depth of pipeline to the sea bed;
6, for the improvement or the dismounting construction of waste and old sea pipe, extra large cable, providing construction effectively to support.
The trenching machine of 7, working under water under the situation that seabed pipeline does not stop production, according to the safe yield limit of submerged pipeline, utilizes sonar and answers the monitoring of power transmitter, carries out the branch degree of depth, multi-level 50cm, 100cm, and the extra large pipe of 150cm is buried operation.
8, safety and environmental protection, cost is low, regulation effect good.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present invention;
Fig. 2 is for pressing A-A shown in Figure 1 to structural representation;
Fig. 3 is for pressing trenching machine structural representation shown in Figure 1;
Fig. 4 is by side-looking structural representation shown in Figure 3;
Fig. 5 is by plan structure schematic diagram shown in Figure 3.
The specific embodiment
Consult Fig. 1-Fig. 5, the online ditching equipment of a kind of gaslift plasma discharge sea pipe, comprise workboat 1 and go up the loop wheel machine of installing 2, the gentle pipeline 3 of water under high pressure, traction cable 6, generator 8, pressure fan 9, gasholder 10, winch 11, water tank 12, high pressure centrifugal pump 13 and the switchboard 15 installed around the base 14 of loop wheel machine 2.Suspention or the trenching machine 5 that pulls on the workboat 1, trenching machine 5 is put into submerged pipeline 7 places, installs on the trenching machine 5 and is being connected the gentle pipeline 3 of water under high pressure, traction cable 6 and pulp cursory 4.
Trenching machine 5 is a tower structure, mainly connects into a general frame by end column 501, horizon bar 502, centre forward's column 510, brace 509, base plate 511, middle part horizon bar 512.Column 501 tops in end are equipped with upper sealing plate and hanger 514.The lower end of end column 501 is equipped with dragging-shoe 513 in turn.On the horizon bar 512 of middle part blast tube 515 is installed, Conic nozzle 516 is installed on the blast tube 515.Blast tube 515 is two, and at least one Conic nozzle 516 is installed on each blast tube 515, is expressed as six among the figure.Base plate 511 is the structure of two parallel installations, and its middle part is equipped with middle part horizon bar 512, slurry recovering tube 503, water inlet pipe 505, guide peg 508, the gas bubble pump that is connected with slurry recovering tube 503 and air inlet pipe 507 is installed on the middle part horizon bar 512, reaches air supply pipe 504.
During use, the powerful water column that trenching machine 5 utilizes high pressure centrifugal pump 13 to produce high-lift big flow effectively impacts operation, thereby washes away the ditch type of effective depth and width.Wash away the mud that by the gaslift plasma discharge,, discharge from slurry recovering tube 503 by high pressure centrifugal pump 13 by pressure fan 9 air feed; On the middle part horizon bar 512 of trenching machine 5 guide peg 508 is installed; coastal bottom tube line 7 rolling movements of directive wheel on this guide peg 508; directive wheel is provided with the stress induction sensor; when the impact force of directive wheel and submerged pipeline 7 just has warning during greater than 500-800kg, thus the safety of protection submerged pipeline 7.The attitude instrument of installing on keeping away of installing on the workboat 1 of traction trenching machine 5 observation ditch type scanning sonar that barrier sonar, trenching machine install later and the trenching machine 5 can be monitored the duty of trenching machine 5 at any time.The traction cable 6 of trenching machine 5 is provided with 30 tons of tensiometers, in operate as normal if greater than correct tension 20-30% the time, just quit work; At first the silt on all pipelines is disposed before the buried pipeline construction of every needs, with the 7 route modelings of whole piece submerged pipeline, the towing workboat 1 of guaranteeing trenching machine 5 moves according to the trend of submerged pipeline 7.Secondly, submerged pipeline 7 is carried out 50cm, 100cm, 150cm by different level, divide the construction process operation of the degree of depth, make the sea be in control rational buried depth, finally reach sea pipe Control of Hidden purpose.
Claims (7)
1. online ditching equipment is managed in a gaslift plasma discharge sea, comprise workboat and go up the loop wheel machine of installing, the gentle pipeline of water under high pressure, traction cable, pressure fan, gasholder, winch, water tank, high pressure centrifugal pump, switchboard, the generator installed around the base of loop wheel machine, it is characterized in that on the described workboat suspention or the trenching machine that pulls, trenching machine is put into the submerged pipeline place, installs on the trenching machine with to be connected the gentle pipeline of water under high pressure, traction cable and pulp cursory.
2. the online ditching equipment of gaslift plasma discharge according to claim 1 sea pipe is characterized in that described trenching machine is a tower structure, mainly connects into a general frame by end column, horizon bar, centre forward's column, brace, base plate, middle part horizon bar.
3. the online ditching equipment of gaslift plasma discharge according to claim 2 sea pipe is characterized in that column top, described end is equipped with upper sealing plate and hanger.
4. according to claim 2 or the online ditching equipment of 3 described gaslift plasma discharge sea pipes, it is characterized in that the lower end of described end column is equipped with dragging-shoe in turn.
5. the online ditching equipment of gaslift plasma discharge according to claim 2 sea pipe is characterized in that on the horizon bar of described middle part blast tube being installed, and Conic nozzle is installed on the blast tube.
6. the online ditching equipment of gaslift plasma discharge according to claim 5 sea pipe is characterized in that described blast tube is two, is equipped with at least one Conic nozzle on each blast tube.
7. the online ditching equipment of gaslift plasma discharge according to claim 2 sea pipe, it is characterized in that described base plate is the structure of two parallel installations, its middle part is equipped with the middle part horizon bar, and slurry recovering tube, water inlet pipe, guide peg, the gas bubble pump that is connected with slurry recovering tube and air inlet pipe and air supply pipe are installed on the horizon bar of middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101290859A CN103215980A (en) | 2013-04-15 | 2013-04-15 | Air-lift slurry discharge subsea pipeline on-line trenching equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101290859A CN103215980A (en) | 2013-04-15 | 2013-04-15 | Air-lift slurry discharge subsea pipeline on-line trenching equipment |
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| CN103215980A true CN103215980A (en) | 2013-07-24 |
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| CN2013101290859A Pending CN103215980A (en) | 2013-04-15 | 2013-04-15 | Air-lift slurry discharge subsea pipeline on-line trenching equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926669A (en) * | 2014-04-10 | 2014-07-16 | 天津亿利科能源科技发展股份有限公司 | Method for paving safety monitoring optical cable along with ocean oil and gas pipeline |
| CN106523787A (en) * | 2016-12-05 | 2017-03-22 | 深圳海油工程水下技术有限公司 | Trepanning and mounting system |
| CN107029963A (en) * | 2017-05-17 | 2017-08-11 | 中核核电运行管理有限公司 | A kind of pipeline outer wall coating care device |
| CN108547278A (en) * | 2018-05-24 | 2018-09-18 | 海洋石油工程股份有限公司 | The sea bed process method of ship is lifted based on jacket |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS54150692A (en) * | 1978-05-19 | 1979-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Submarine cable burying machine |
| 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 |
| CN101881353A (en) * | 2009-09-22 | 2010-11-10 | 天津市海王星海上工程技术有限公司 | Sea laying method for shallow-sea small-diameter steel strip-plastic composite hose |
| CN102212997A (en) * | 2010-04-09 | 2011-10-12 | 中国海洋石油总公司 | Pipeline trencher with underwater sonar detection devices |
-
2013
- 2013-04-15 CN CN2013101290859A patent/CN103215980A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54150692A (en) * | 1978-05-19 | 1979-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Submarine cable burying machine |
| CN101881353A (en) * | 2009-09-22 | 2010-11-10 | 天津市海王星海上工程技术有限公司 | Sea laying method for shallow-sea small-diameter steel strip-plastic composite hose |
| 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 |
| CN102212997A (en) * | 2010-04-09 | 2011-10-12 | 中国海洋石油总公司 | Pipeline trencher with underwater sonar detection devices |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926669A (en) * | 2014-04-10 | 2014-07-16 | 天津亿利科能源科技发展股份有限公司 | Method for paving safety monitoring optical cable along with ocean oil and gas pipeline |
| CN103926669B (en) * | 2014-04-10 | 2016-03-23 | 天津亿利科能源科技发展股份有限公司 | A method for laying safety monitoring optical cables along with offshore oil and gas pipelines |
| CN106523787A (en) * | 2016-12-05 | 2017-03-22 | 深圳海油工程水下技术有限公司 | Trepanning and mounting system |
| CN106523787B (en) * | 2016-12-05 | 2018-07-10 | 深圳海油工程水下技术有限公司 | A kind of trepanning installation system |
| CN107029963A (en) * | 2017-05-17 | 2017-08-11 | 中核核电运行管理有限公司 | A kind of pipeline outer wall coating care device |
| CN107029963B (en) * | 2017-05-17 | 2023-07-14 | 中核核电运行管理有限公司 | Pipeline outer wall coating maintenance device |
| CN108547278A (en) * | 2018-05-24 | 2018-09-18 | 海洋石油工程股份有限公司 | The sea bed process method of ship is lifted based on jacket |
| CN108547278B (en) * | 2018-05-24 | 2020-09-18 | 海洋石油工程股份有限公司 | Seabed processing method based on jacket hoisting ship |
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Application publication date: 20130724 |