CN103790757A - Self power generation device of submarine pipeline - Google Patents
Self power generation device of submarine pipeline Download PDFInfo
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- CN103790757A CN103790757A CN201410066146.6A CN201410066146A CN103790757A CN 103790757 A CN103790757 A CN 103790757A CN 201410066146 A CN201410066146 A CN 201410066146A CN 103790757 A CN103790757 A CN 103790757A
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- 238000010248 power generation Methods 0.000 title abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims description 20
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000002269 spontaneous effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011797 cavity material Substances 0.000 description 17
- 238000004364 calculation method Methods 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000004907 flux Effects 0.000 description 6
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
本发明涉及一种海底管道自发电装置，特别涉及深水海底金属管道自发电装置。主要解决深海管道的检测/监测设备供电困难，以及现有管道发电装备影响管道正常流通和清理，深海中的发电设备密封等问题。其特征在于：发电设备安装于支管道（2）中，不会影响主管道（1）中流体的流通以及清理。发电流体（气体或液体）经过滤网（11），由整流罩（5）导流，推动螺旋叶片（6）转动。螺旋叶片（6）片端装有永磁铁（9），其磁力线可穿透装置主腔体壁（4）。螺旋叶片（6）旋转时，嵌在主腔体壁（4）上线圈（17）切割由永磁体（9）产生的磁感线，实现海底自发电的功能。
The invention relates to a self-generating device for a submarine pipeline, in particular to a self-generating device for a deep-water submarine metal pipeline. It mainly solves the difficulty of power supply for detection/monitoring equipment of deep sea pipelines, the existing pipeline power generation equipment affects the normal circulation and cleaning of pipelines, and the sealing of power generation equipment in deep sea. It is characterized in that the power generation equipment is installed in the branch pipeline (2), which will not affect the circulation and cleaning of the fluid in the main pipeline (1). The power generation fluid (gas or liquid) passes through the filter screen (11), is guided by the fairing (5), and drives the spiral blade (6) to rotate. The end of the helical blade (6) is equipped with a permanent magnet (9), and its magnetic force line can penetrate the wall (4) of the main cavity of the device. When the helical blade (6) rotates, the coil (17) embedded in the main cavity wall (4) cuts the magnetic induction line generated by the permanent magnet (9), realizing the function of spontaneous power generation on the seabed.
Description
Technical field
The present invention relates to a kind of submarine pipeline fluid self-generating device.Especially high pressure resistant about one, reliability is high, the electricity generating device that tightness is good, and can realize at deep-sea place is the power supply of detection/monitoring equipment.
Background technique
Present stage, hydrocarbon sub-marine field obtained very great development, need to lay sea-bottom oil-gas pipeline and transport.The laying cost of these pipelines is high, construction quality requires highly, and material and performance to pipeline have strict demand.So need detection/monitoring instrument to measure and monitoring pipeline each side security parameter, guarantee safe transport.
Deep-sea instrument mainly relies on ground power supply system at present, and cable laying is powered.This power supply mode exists that cost is high, reliability is low, easily aging, the deficiency such as easy care not of circuit.Therefore the power supply of offshore instrument equipment is a masty problem.
The energy that deep-sea place can directly utilize is few, more existing self power generation equipment utilization seabed ocean current power generations.But because the geographical distribution of ocean current is inhomogeneous, this electricity generating device does not have general applicability, only could use in the ocean current region of flowing through.Fluid (liquid or gas) in pipeline has kinetic energy, can utilize it to generate electricity, and by power storage utilization.
Present stage utilize pipeline fluid generating device some blade is placed in to main pipeline, part power generation blade is placed in main pipeline by some.In the time of cleaning main pipeline, just keep away and unavoidably will remove whole electricity generating device like this, pipeline cleaning work is produced to inconvenience, also can impact the normal circulation of pipeline inner fluid.Meanwhile, pipeline power generating equipment need to derive electric current by wire, requires the seabed high, outside pressure is large at seal, and punching cabling can bring great potential safety hazard, and this just has higher requirement to the internal structure of power generating equipment.
Utilize in addition pipeline fluid generating also to should be taken into account its corrosion to power generating equipment, every have the parts that directly contact all must have very strong corrosion resistance with fluid.Guarantee electricity generating device can long-term stable work in corrosive fluid like this.
How can, in the situation that meeting seabed high pressure and flow-induced corrosion, realize safe, reliable, stable self power generation, and for the power supply of coherent detection/monitoring instrument, to be a problem demanding prompt solution.
summary of the invention
The present invention is mainly for seabed hyperbaric environment generating difficulty in background technique, terrestrial pipeline power generating equipment should not directly migrate to seabed and use, and the deficiency such as power generation blade mounting point, a kind of submarine pipeline self-generating device is provided, and that this self-generating device has is simple in structure, Installation and Debugging convenient, reliability is high, good airproof performance, corrosion-resistant, high voltage bearing feature.
In order solving, blade impact on main pipeline when the main pipeline to be installed, on main pipeline, to open lateral (Fig. 1), rotor machine is fixedly mounted into a branch pipe(tube) part with flange plate.Utilize the fluid driven blade rotation in lateral to realize generating.
(1)main pipeline flow velocity and lateral flow relocity calculation are as follows:
Before known shunting, main pipeline fluid (incompressible fluid) flow velocity is, main pipeline diameter is D, and branch pipe(tube) diameter is d.Fluid density is
, pipeline absolute roughness is Δ, the kinematical viscosity of fluid is
, branch pipe(tube) local loss coefficient is
.Main pipeline and branch pipe(tube) total length are respectively
, angle is θ, the concrete size in primary branch road is as Fig. 2.Calculate the rear main pipeline flow velocity of shunting
, branch pipe(tube) flow velocity
.
First the relative roughness that calculates main pipeline and branch pipe(tube) is respectively:
,
Again from Moody chart according to mobile corresponding region, find main pipeline and branch pipe(tube) on-way resistance coefficient is:
Total discharge before shunting:
Equate according to the road loss of head of shunting principle primary branch:
Branch pipe(tube) ingress local loss coefficient is:
。
Then suppose main pipeline flow:
, tentative calculation error is set:
Reynolds number:
。
Calculate through repeatedly tentative calculation and Reynolds number and along the verification of journey damping constant, can obtain
,
value, and then calculate shunting after main pipeline flow velocity
, branch pipe(tube) flow velocity
.
Have good sealing in seabed in order to meet electricity generating device, the present invention improves on electric machine structure.Permanent magnet is arranged on the excircle of rotation blade as generator amature, on main equipment chamber outer wall with copper wire coil as generator unit stator.Main cavity selects permeability to approach the Austenitic Stainless Steel of air, and to the unshielded effect of the magnetic line of force, fluid in pipeline (as: oil, rock gas) is to also unshielded effect of the magnetic line of force.The magnetic line of force can pass fluid and cavity wall, in cavity wall outer coil, forms magnetic flux.When permanent magnet is during with blade rotation, in coil, magnetic flux temporal evolution produces Ac.
(2)below the calculating to electricity generating device power:
Obtain blade tip linear velocity through ANSYS simulation calculation
, blade radius is r, rotating speed
(rad/min).On blade, permanent magnet number is n, and permanent magnet coercivity is Hc, and magnetic pole area is S.Fluid, cavity material, air permeability are followed successively by:
, the radial length of every kind of material is:
, each coil turn is N, resistance is R.
First the radially magnetic resistance that calculates three kinds of media is:
Magnetic flux maximum value is:
Blade rotational speed is:
Coil flux is:
。
Each coil both end voltage is:
Generating total output is:
Patent of the present invention is characterised in that:
Electricity generating device integral installation is in branch pipe(tube), and with flange plate connection, the sealing of high-pressure mechanical seal ring is equipped with in joint.Main pipeline and branch pipe(tube) connection position are installed arc and are filled corrosion-resistant filter screen, and filter screen enriches whole port just.And the arc of filter screen combines with the cambered surface of main pipeline inwall, can not affect the form of main pipeline inwall.The impurity of filter screen filtering can directly flow away with main pipeline fluid, does not enter the electricity generating device of branch pipe(tube), avoids electricity generating device to be subject to impurity erosion.
In main cavity, there are two symmetrical supports, an external side configuration cowling of support, bilateral symmetry is installed.Installation cowling plays the effect of drainage and concentrated energy.Corrosion resistant sliding bearing is laid in two side support punchings, and running shaft is arranged on bearing.
Rotation blade is helical type, and end is circle ring column, and exterior edge face disposes arcuation permanent magnet.Permanent magnet and cavity inner wall have certain interval.Device main cavity material is high strength Austenitic Stainless Steel, and the wired ring recess of its outer wall surface, lays copper coil in groove.Exterior line ring recess both sides configuration annular shallow slot.Coil seal closure, parcel copper coil, middle fluting cabling.Coil seal closure and main cavity are fixed and sealed inside coil by seal ring.Coil seal closure one side has wire outlet hole, and configures three phase current inverter and storage battery.
Accompanying drawing explanation
Fig. 1 pipeline and apparatus of the present invention agent structure and pipeline schematic diagram.
Fig. 2 main pipeline and lateral physical dimension schematic diagram.
The right elevation of Fig. 3 apparatus of the present invention.
Fig. 4 is the sectional view along A-A line in Fig. 3.
The plan view of Fig. 5 apparatus of the present invention.
Fig. 6 is the sectional view along B-B line in Fig. 5.
Embodiment
The present invention is a kind of submarine pipeline self-generating device, and concrete implementation step is as follows:
Refer to Fig. 1, Fig. 1 is the position of submarine pipeline self-generating device of the present invention (16) in main pipeline (1) and branched pipe (2).Advantage is not affect the normal circulation of pipeline fluid and cleaning, utilizes lateral (2) to shunt the fluid obtaining completely and generates electricity.
In Fig. 3 and Fig. 4, be general structure and the inner connection diagram of this contrive equipment.In Fig. 4, electricity generating device is connected with lateral (2) by flange plate (19), and by mechanical seal ring (10) sealing.The Austenitic Stainless Steel that main cavity (4) material is high strength, corrosion resistance is strong, its compressive strength is higher than the compressive strength of main pipeline (1).As first Fig. 1 fluid flows through from filter screen (11), make the impurity that wherein volume is larger cannot enter self-generating device (16).Filter screen is installed on lateral (2) entrance and exit, and its shape can be fitted by inner arc surface direct and main pipeline, does not affect the geometrical shape of main pipeline inner cylindrical surface.Impurity on filter screen can flow away with main pipeline (1) fluid, can not stop up branch pipe(tube).In branch pipe(tube) (2), fluid then flows through the cowling (5) being installed on support, its role is to drainage and concentrated energy, allows fluid can fully promote rotation blade (6).Fixed support is connected with main cavity (4), and travel(l)ing rest (23) is held out against by travel(l)ing rest retainer ring (24) at opposite side.Sliding bearing (8) has been housed on support, and by sliding bearing (8) supporting rotating shaft (7).In the middle of running shaft, spline, helical blade fixedly holds out against by flat key (25) and the shaft shoulder of running shaft (7).6 permanent magnets (9) are evenly installed on the ring dress cylinder exterior edge face of helical blade (6), and itself and main cavity (4) inwall leave gap.The outer middle side part of main cavity (4) leaves coil groove, places copper coil (17).Copper coil outside disposes coil seal closure (3), plays encapsulated coil, and seal closure is fixing by two ends mechanical seal ring (10) sealing simultaneously.In the middle of seal closure (3), have wire groove (15) and facilitate copper coil (17) cabling.
The material of main cavity (4) is Austenitic Stainless Steel, and its permeability approaches air.In the time that rotation blade (6) rotates, the permanent magnet (9) of blade end rotates thereupon, and the magnetic line of force of copper coil (17) the cutting permanent magnet in main cavity (4) outside produces alternating voltage.Again because 6 copper coils (17) are interconnected spaced apart in main cavity (4) wall outside between two, therefore copper coil generation is three-phase alternating voltage.
As shown in Figure 6,2 coil seal closures are closely connected by bolt (14), compression spring (13), nut.One lateral coil seal closure (3) has thread hole (18), and the threephase AC that electricity generating device produces flows to three phase current inverter storage battery (20) through thread hole (18), converts it into direct current memory by using.This place, by rectangle mechanical seal ring (21) sealing, is sealed by sealing cover (22).
Can find out submarine pipeline self-generating device of the present invention from above, a kind of safety really, life-span long, reliably, can independently realize the seabed electricity generating device of electricity generate function.
Illustrate flow and the power in this with an example below.
(1)when using new seamless steel pipe, its absolute roughness:
.
Pipe parameter is: L=1m, and D=0.5m,
=1.3m, d=0.2m,
Pipeline inner fluid is crude oil, main pipeline flow velocity before shunting:
=1m/s
Table look-up, the kinematical viscosity of crude oil:
Branch pipe(tube) ingress local loss coefficient:
Primary branch road relative roughness:
,
Find from Moody chart rough region primary branch road along journey damping constant:
,
.
Total discharge before shunting:
Tentative calculation error:
.
Tentative calculation for the first time, get the rear main pipeline flow of shunting:
Main pipeline loss of head:
Branch pipe(tube) flow is:
Due to
.
Tentative calculation is for the second time got:
All the other steps obtain with tentative calculation for the first time:
Hence one can see that primary branch road Reynolds number:
,
With the correction of Bai Laxiusi formula along journey damping constant:
By the same steps tentative calculation of above tentative calculation, finally meet error requirements and draw:
Further obtaining primary branch road flow velocity is:
(2)the radial length of fluid, cavity material, air:
.
Blade radius:
Permanent magnet coercivity and area:
Coil is pricked number and resistance:
Fluid, cavity material, air permeability:
Blade tip speed:
.
Radially magnetic resistance of three kinds of media:
Magnetic flux maximum value:
。
Blade rotational speed:
Coil flux is:
.
Each coil both end voltage is:
。
Generating total output is:
According to above-mentioned computational process, further can be calculated: when main pipeline flow velocity before shunting
when=1 ~ 2m/s, the main pipeline flow velocity after shunting is:
=0.933 ~ 1.862m/s, the branch pipe(tube) flow velocity after shunting
=0.418 ~ 0.8607m/s, generated output
.Can find out from calculating, lateral flow velocity can meet generating basic demand.
Claims (5)
1. a submarine pipeline self-generating device, it is to utilize in submarine pipeline to carry fluid (liquid or gas) to promote helical blade (6), thereby drive the device of generator generating, it is characterized in that: on the main pipeline (1) of conveyance conduit, offer branch pipe(tube) (2), electricity generating device main cavity (4) is arranged on branch pipe(tube) (2), main pipeline (1) is equipped with filter screen (11) with branch pipe(tube) (2) connectivity part, the permanent magnet (9) of electricity generating device is fixed on the support outside of helical blade (6), the field coil of electricity generating device is arranged on the periphery of main cavity, and by coil seal closure (3) sealing.
2. submarine pipeline self-generating device according to claim 1, is characterized in that: in order to improve the impact momentum of fluid to helical blade (6), in the rear and front end of helical blade (6), cowling (5) is installed.
3. submarine pipeline self-generating device according to claim 1, is characterized in that: in order to improve explosion-proof and the Security of electricity generating device, field coil is arranged on to the outside of branch pipe(tube) (2).
4. submarine pipeline self-generating device according to claim 1, is characterized in that: the fixed place at electricity generating device main cavity (4) and branch pipe(tube) (2) is provided with seal ring (10).
5. submarine pipeline self-generating device according to claim 1, is characterized in that: in order to improve the stability of helical blade (6), between helical blade (6) and running shaft (7), corrosion-resistant sliding bearing (8) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066146.6A CN103790757A (en) | 2014-02-26 | 2014-02-26 | Self power generation device of submarine pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410066146.6A CN103790757A (en) | 2014-02-26 | 2014-02-26 | Self power generation device of submarine pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN103790757A true CN103790757A (en) | 2014-05-14 |
Family
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|---|---|---|---|
| CN201410066146.6A Pending CN103790757A (en) | 2014-02-26 | 2014-02-26 | Self power generation device of submarine pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394867A (en) * | 2017-08-09 | 2017-11-24 | 张勤建 | A kind of supply unit of pipe-line transportation system remote sensing monitoring platform |
| CN108843505A (en) * | 2018-05-22 | 2018-11-20 | 苏州市智水环境科研技术有限公司 | A kind of floating box type generating set for water treatment facilities |
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|---|---|---|---|---|
| CN1858434A (en) * | 2005-05-02 | 2006-11-08 | 刘成江 | Submerging type axial through flow hydropower generator |
| US20070145751A1 (en) * | 2005-09-01 | 2007-06-28 | Roos Paul W | Integrated Fluid Power Conversion System |
| CN201292909Y (en) * | 2008-02-18 | 2009-08-19 | 蒋明兴 | Negative-pressure hydroelectric generating set |
| CN202117831U (en) * | 2011-03-21 | 2012-01-18 | 中国人民解放军总后勤部油料研究所 | Self-holding type power generation device based on oil transportation power of pipeline |
| CN102723840A (en) * | 2012-06-26 | 2012-10-10 | 张珩 | Circumference magnet-cutting fluid power generation device |
| CN103388548A (en) * | 2013-08-16 | 2013-11-13 | 重庆同利实业有限公司 | Direct hydraulic turbine generator |
-
2014
- 2014-02-26 CN CN201410066146.6A patent/CN103790757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858434A (en) * | 2005-05-02 | 2006-11-08 | 刘成江 | Submerging type axial through flow hydropower generator |
| US20070145751A1 (en) * | 2005-09-01 | 2007-06-28 | Roos Paul W | Integrated Fluid Power Conversion System |
| CN201292909Y (en) * | 2008-02-18 | 2009-08-19 | 蒋明兴 | Negative-pressure hydroelectric generating set |
| CN202117831U (en) * | 2011-03-21 | 2012-01-18 | 中国人民解放军总后勤部油料研究所 | Self-holding type power generation device based on oil transportation power of pipeline |
| CN102723840A (en) * | 2012-06-26 | 2012-10-10 | 张珩 | Circumference magnet-cutting fluid power generation device |
| CN103388548A (en) * | 2013-08-16 | 2013-11-13 | 重庆同利实业有限公司 | Direct hydraulic turbine generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394867A (en) * | 2017-08-09 | 2017-11-24 | 张勤建 | A kind of supply unit of pipe-line transportation system remote sensing monitoring platform |
| CN108843505A (en) * | 2018-05-22 | 2018-11-20 | 苏州市智水环境科研技术有限公司 | A kind of floating box type generating set for water treatment facilities |
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Application publication date: 20140514 |