CN204851193U - Mining devices of seabed combustible ice - Google Patents
Mining devices of seabed combustible ice Download PDFInfo
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- CN204851193U CN204851193U CN201520564154.3U CN201520564154U CN204851193U CN 204851193 U CN204851193 U CN 204851193U CN 201520564154 U CN201520564154 U CN 201520564154U CN 204851193 U CN204851193 U CN 204851193U
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- combustible ice
- cylindrical shell
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- quarrying apparatus
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Abstract
The utility model relates to a mining devices of seabed combustible ice, its characterized in that: including floating in the exploitation platform on sea, be equipped with the separation container that is used for realizing gas, liquid separation on the exploitation platform, the separation container is linked together via barrel pipeline and the barrel that can get into the sea water, and the barrel is arranged in combustible ice exploitation point top, is equipped with the clastic cable operated excavator who is used for cutting into the combustible ice certain thickness in the barrel. The utility model discloses can distinguish greatly with current decompression, heating or chemical approach in shallow sea or deep sea operation. Have low energy consumption, high efficiency and do not have characteristics such as leakage.
Description
Technical field
The utility model relates to the quarrying apparatus of a kind of seabed combustible ice, utilize mechanical excavator to excavate combustible ice, drive the flowing of cylindrical shell pipeline maritime interior waters by installing several axial-flow pump, combustible ice is carried rising, Bian Shangsheng, temperature edge height, pressure limit declines, and combustible ice limit is decomposed, finally, gas-liquid mixture flows to the separation container on the operating platform of sea together, collects after gas is simply processed and transports destination to, can be applicable to the exploitation of shallow sea and deep-sea combustible ice.
Background technology
It is generally acknowledged, combustible ice exploration and development is a system engineering, relates to numerous subjects, as Marine Geology, geophysics, geochemistry, hydrodynamics, thermodynamics, drilling project etc., needs coacting of each domain expert.Owing to can there is temperature, pressure change and phase transformation in recovery process, compared with the fossil energy such as traditional coal, oil and natural gas, the exploitation of combustible ice more not easily.The exploitation of current international combustible ice is limited to marine site more, and main exploitation method has 3 kinds: one to be heat shock method, decomposites the principle of methane gas when namely utilizing combustible ice to be heated; Two is voltage drop methods, and expert proposes nuke rubbish to imbed the end, ground, utilizes nuclear radiation effect to make it decomposite methane gas; Three is injectant methods, injects salt solution, methyl alcohol, ethanol etc., destroy original balance and impel it to decompose to flammable ice sheet.Slowly, costly, and in ocean, the pressure of hydrate is higher for above-mentioned exploitation method technical sophistication, speed, realize pipeline Reasonable Arrangement, natural gas Efficient Collection more difficult.It is crucial for ensureing in recovery process that seabed is stablized, methane gas is not revealed, and Japan proposes " molecular Control " scheme to this, the U.S. has gone out seabed combustible ice at successful simulated production in 2005.But various countries there is no ripe large-scale commercial applications exploitation method at present.
Application number be 201210323227.0 Chinese patent disclose a kind of ocean combustible ice exploitation method and its quarrying apparatus adopted, this process employs the device exploiting combustible ice by heating concentrated salt solution, the heat of heating combustible ice reservoir is provided by the concentrated salt solution of heating.These exploitation method energy-conserving and environment-protective, remarkable in economical benefits, without discharge, pollution-free in recovery process, energy-saving and cost-reducing refer to that reactor bottom exists gas Inner eycle, this reactor is mainly used in synthesis gas and produces liquid fuel.
Application number be 201310284154.3 Chinese patent disclose quarrying apparatus and the exploitation method of a kind of seabed combustible ice, with collection tube, seabed suction nozzle and surface platform are coupled together, collection tube maritime interior waters is pumped rear formation low pressure, so, suction nozzle place pressure is lower, and combustible ice liquefies.Action need collection tube like this bears very large pressure, when particularly exploiting at deep-sea.In addition, suction nozzle place is also needed to seal, in case seawater pours into.
Application number be 201310183676.4 Chinese patent disclose shallow water area combustible ice quarrying apparatus and exploitation method, utilize electric-heating-wire-heating method exploitation combustible ice.
Summary of the invention
The purpose of this utility model is to provide a kind of quarrying apparatus that is simple, seabed combustible ice efficiently.
In order to achieve the above object, the technical solution of the utility model there is provided the quarrying apparatus of a kind of seabed combustible ice, it is characterized in that: comprise the production platform floating on sea, production platform is provided with for the separation container realizing gas, liquid is separated, separation container is connected with the cylindrical shell that can enter seawater via cylindrical shell pipeline, cylindrical shell is arranged in combustible ice exploitation point top, is provided with the cable operated excavator for combustible ice being cut into certain thickness chip in cylindrical shell lower end.
Preferably, in described cylindrical shell pipeline, at least one axial-flow pump is provided with.
Preferably, described cylindrical shell pipeline axial has elasticity and the intensity of resisting the power that pulls that ocean current brings.
Preferably, at least one short-section thread pipe is axially provided with at described cylindrical shell pipeline.
Preferably, the position described cylindrical shell bottom surface and/or described cylindrical shell being positioned at bottom surface annex has seawater inlet.
Preferably, described cable operated excavator has the excavation surface that seawater can be allowed to flow through, and the certain thickness combustible ice chip that cuts into digged down is positioned on excavation surface.
Preferably, described excavation surface is made up of the section of rotating or scraping blade, has certain interval between the section of circumferentially installing or between scraping blade.
Preferably, described scraping blade is provided with scrapes nail.
Preferably, described cylindrical shell pipeline adopts high heat-transfer performance pipeline.
According to seabed combustible ice ore occurrence, if combustible ice is mingled with sandstone or other mineral, so, explore situation according to early stage, understand the characteristic such as sandstone or other hardness of minerals, design corresponding scraping blade hardness and intensity.
So if combustible ice is mingled with other mineral, under the effect of scraping blade or blade, dirt is also ground into fine particle, and its granularity is less than 0.2mm.Move upward together under the carrying secretly of current, flow into the knockout drum on sea, only need divided gas flow, seawater enters sea together with solid granule.
The characteristic that the density of the ice that the utility model utilizes combustible ice density and water to form is suitable, the method adopting machinery to excavate, cuts into solid debris by mineral reserve combustible ice, then is carried by combustible ice with the seawater of flowing.In cylindrical shell pipeline, arrange multiple axial-flow pump can order about the seawater carrying combustible ice chip and move upward.In the process of motion, the cold logistics in pipeline is by the hot sea water indirect heating outside pipeline, and meanwhile, manifold pressure constantly reduces, so most of combustible ice resolves into gaseous state.In pipeline, logistics is imported in the separation container on the operating platform of sea, and seawater returns to sea, and gas is sent to destination after simple processing.In pipeline, the quantity of axial-flow pump is determined primarily of sea water advanced, and axial-flow pump interval, pipeline bottom is less, and conduit upper combustible ice starts to be decomposed to form gas-liquid-solid three-phase, fluid density declines, possess nature lift, so axial-flow pump quantity can reduce, or do not establish axial-flow pump.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model institute application apparatus.
Detailed description of the invention
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The utility model provides the machine instruction statement mining method of a kind of ocean combustible ice, refers to the method utilizing combustible ice character, ocean feature and fluid mechanics principle to conceive, and adopts machinery driving, liquid stream promotes separation, sea production platform collection mode realizes exploitation.Can, at shallow sea or deep ocean work, distinguish larger with existing decompression, heating or chemical method.There is the features such as low energy consumption, high efficiency and No leakage.Specifically, the mode that the utility model application machine is excavated, cuts into certain thickness chip by combustible ice.Utilize the physical characteristic that combustible ice density is less, make in its seawater being suspended in restriction flowing.Recycling axial-flow pump drives cylindrical shell fluids within pipes, the seawater carrying combustible ice secretly is moved upward, until the production platform on sea.Usually, bottom-water temperature is low, pressure is large, and SST is high, pressure is normal pressure.So in the process that cylindrical shell inner fluid upwards flows, water temperature will raise gradually, pressure then declines gradually.So combustible ice wherein will decompose gradually, discharge gas.Cylindrical shell fluids within pipes becomes gas, liquid, solid three-phase mixture, after flowing into the separation container on production platform, the combustible ice do not decomposed completely decomposes completely further, realizes gas, liquid is separated, be sent to destination after gas is processed, a small amount of silt of liquid entrainment etc. returns to sea together.Realize low energy consumption, low stain, the exploitation of high efficiency combustible ice.
Composition graphs 1 (in figure, proportionate relationship does not represent reality), the driven by power that cable operated excavator 2 is provided by generator 13, generator 13, on production platform 9, is driven by combustion gas or fuel oil, also there is no the initial stage of natural gas, other fuel driven generator should used.Cable operated excavator 2 is in the columniform cylindrical shell 3 of opposing seal.The cylindrical shell 3 being close to seabed is fixed by own wt or drag rope.Cylindrical shell 3 is connected with the separation container 7 be positioned on production platform 9 via cylindrical shell pipeline 4.In cylindrical shell pipeline 4, axial-flow pump 6 is installed in segmentation.The quantity of axial-flow pump 6 is determined primarily of mining depth, the flow of axial-flow pump 6 and the interface fit of cylindrical shell pipeline 4, makes cylindrical shell pipeline 4 inner fluid flow velocity upwards be greater than the rate of settling digging down combustible ice particle.Because the inside and outside differential pressure of cylindrical shell 3 and cylindrical shell pipeline 4 is little, so material selection range is comparatively large, take seawater corrosion resistance as Main Basis.Cylindrical shell pipeline 4 axially needs certain elasticity and intensity, pulls power with what resist that ocean current brings.Utilize several short-section thread pipe 14 can strengthen the elasticity of cylindrical shell pipeline 4, the quantity of screwed pipe 14 is also determined by sea water advanced.
Seabed cylindrical shell 3 and all component in place also, after being ready to, open generator 13.Start the axial-flow pump 6 in cylindrical shell pipeline 4, in pipeline after waterflow stabilization, open cable operated excavator 2, regulate motor speed, position etc., cable operated excavator 2 is run well.After cable operated excavator 2 runs well, digged down by the combustible ice of tap point, the combustible ice of digging exists with sheet form, forms combustible ice chip.The thickness of combustible ice chip between 0.01 ~ 1mm, preferably 0.05 ~ 0.5mm.Its sectional dimension is randomly formed, but longest dimension is between 0.01 ~ 2mm, preferably between 0.05 ~ 0.5mm.Combustible ice chip size is related to the service behaviour whether affecting axial-flow pump 6, and chip is comparatively large, can clash into axial flow pump blade inner.Simultaneously, seawater 15 enters cylindrical shell 3 from the bottom surface of cylindrical shell 3 or neighbouring position, flow through the excavation surface top of cable operated excavator 2 inside, the combustible ice chip digged down is washed away, form fluid-mixing 5, fluid-mixing 5 moves upward in cylindrical shell 3, enters the separation container 7 above production platform 9 by cylindrical shell pipeline 4.Excavation surface is made up of the section of rotating or scraping blade, scraping blade can be arranged and scrape nail, have certain interval between the section of circumferentially installing or between scraping blade.The combustible ice cut, scraped off is washed away by the seawater flowed above and forms fluid-mixing 5, and moves upward with seawater.The combustible ice chip formed in fluid-mixing 5 constantly discharges gas in the process moved upward, gas, liquid, solid three-phase mixture is formed in cylindrical shell, combustible ice chip progressively decomposes in uphill process, release gas, so tube fluid density declines, lift increases, and is conducive to the power consumption of saving axial-flow pump 6.Under warmer sea and normal pressure, combustible ice chip almost all decomposes.After gas, liquid, solid three-phase mixture flows into separation container 7, solid, i.e. combustible ice chip, decompose further completely in separation container 7, realize gas, liquid is separated, isolated gas is drawn via outlet 1 together with the gas in gas, liquid, solid three-phase mixture, and isolated liquid is drawn via outlet 2 12 together with the liquid in gas, liquid, solid three-phase mixture.When separation container 7 is not enough to decompose combustible ice completely, in device, can heater block be set, realizes all decomposing.In separation container 7, liquidus temperature is between 20 ~ 60 DEG C, preferably between 25 ~ 40 DEG C.Gas is drawn from outlet 1, after processing process, be sent to destination.The a small amount of silt of liquid entrainment enters sea from outlet 2 12.
Because the temperature and pressure of ocean different depth is different, cylindrical shell pipeline 4 inner fluid upwards exist in flow process heat up, step-down phenomenon, so, the heat-transfer capability of cylindrical shell pipeline 4 is stronger, more being conducive to managing outer heat imports in pipe, contributes to strengthening the heat exchange effect of cold logistics in cylindrical shell pipeline 4 on seabed and the higher seawater of upper strata temperature.Select the metal pipe material of seawater corrosion resistance to be conducive to heat transfer as cylindrical shell pipeline 4, meanwhile, at the outer extra thermal transfer sheet of pipe, heat transfer effect can be strengthened.
Cable operated excavator 2 enters the operation of machine and position is moved, the movement of cylindrical shell 3 all can have been assisted by latent extra large device with fixing, and the leak test comprising cylindrical shell 3 also can be undertaken by latent extra large device with maintenance.
Inside and outside in cylindrical shell 3 by the utility model is be communicated with, so the inside and outside pressure reduction of cylindrical shell pipeline 4 is less, pipeline voltage endurance capability is not substantially by the impact of ocean depth.
Embodiment 1
The resistance that the utility model axial-flow pump 6 overcomes is pipe friction power and the differential static pressure higher than sea mainly, so the separation container 7 floated on the production platform 9 on sea 10 should be low as far as possible.When separation container 7 is 5 meters apart from sea 10, during seabed excavation surface distance 500 meters, sea, the axial-flow pump 6 of 5 rotating speeds between 400 ~ 600 revs/min can realize flow rates demand in cylindrical shell pipeline 4.Cylindrical shell pipeline 4 internal diameter and cable operated excavator 2 ability match, and in initial fluid, combustible ice content is between 10 ~ 60%.Maintain separation container 7 liquidus temperature 25 ~ 40 DEG C, in separation container 7, the liquid phase time of staying is greater than 10 minutes, and combustible ice is decomposed completely.
Embodiment 2
When separation container 7 is 5 meters apart from sea 10, during seabed excavation surface distance 1000 meters, sea, the axial-flow pump 6 of 9 rotating speeds between 400 ~ 600 revs/min can realize flow rates demand in cylindrical shell pipeline 4.Cylindrical shell pipeline 4 internal diameter and cable operated excavator 2 ability match, and in initial fluid, combustible ice content is between 15 ~ 60%.Maintain separation container 7 liquidus temperature 25 ~ 40 DEG C, in tank, the liquid phase time of staying is greater than 10 minutes, and combustible ice is decomposed completely.
Claims (9)
1. the quarrying apparatus of a seabed combustible ice, it is characterized in that: comprise the production platform (9) floating on sea (10), production platform (9) is provided with for the separation container (7) realizing gas, liquid is separated, separation container (7) is connected with the cylindrical shell (3) that can enter seawater via cylindrical shell pipeline (4), cylindrical shell (3) is arranged in combustible ice exploitation point top, is provided with the cable operated excavator (2) for combustible ice being cut into certain thickness chip in cylindrical shell (3) lower end.
2. the quarrying apparatus of a kind of seabed as claimed in claim 1 combustible ice, is characterized in that: in described cylindrical shell pipeline (4), be provided with at least one axial-flow pump (6).
3. the quarrying apparatus of a kind of seabed as claimed in claim 1 combustible ice, is characterized in that: described cylindrical shell pipeline (4) axially has to resist elasticity and the intensity of the power that pulls that ocean current brings.
4. the quarrying apparatus of a kind of seabed as claimed in claim 1 combustible ice, is characterized in that: be axially provided with at least one short-section thread pipe (14) described cylindrical shell pipeline (4).
5. the quarrying apparatus of a kind of seabed as claimed in claim 1 combustible ice, is characterized in that: the position being positioned at bottom surface annex on described cylindrical shell (3) bottom surface and/or described cylindrical shell (3) has seawater inlet.
6. the quarrying apparatus of a kind of seabed as claimed in claim 1 combustible ice, is characterized in that: described cable operated excavator (2) has the excavation surface that seawater can be allowed to flow through, and the certain thickness combustible ice chip that cuts into digged down is positioned on excavation surface.
7. the quarrying apparatus of a kind of seabed as claimed in claim 6 combustible ice, is characterized in that: described excavation surface is made up of the section of rotating or scraping blade, has certain interval between the section of circumferentially installing or between scraping blade.
8. the quarrying apparatus of a kind of seabed as claimed in claim 7 combustible ice, is characterized in that: be provided with on described scraping blade and scrape nail.
9. the quarrying apparatus of a kind of seabed as claimed in claim 1 combustible ice, is characterized in that: described cylindrical shell pipeline (4) adopts high heat-transfer performance pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520564154.3U CN204851193U (en) | 2015-07-30 | 2015-07-30 | Mining devices of seabed combustible ice |
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| CN201520564154.3U CN204851193U (en) | 2015-07-30 | 2015-07-30 | Mining devices of seabed combustible ice |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019868A (en) * | 2015-07-30 | 2015-11-04 | 迈瑞尔实验设备（上海）有限公司 | Seabed combustible ice mining method |
| CN108071370A (en) * | 2016-11-15 | 2018-05-25 | 梁嘉麟 | The planning of common seabed combustible ice mineral reserve is exploited using decompression method |
| CN108071369A (en) * | 2016-11-15 | 2018-05-25 | 梁嘉麟 | The simple type recovery scheme of common seabed combustible ice mineral reserve |
| CN108386196A (en) * | 2018-04-09 | 2018-08-10 | 上海飞舟博源石油装备技术有限公司 | The mining system and recovery method of seabed combustible ice |
| CN109057758A (en) * | 2018-09-03 | 2018-12-21 | 岑益南 | A kind of device and method for exploiting seabed combustible ice |
| CN110644952A (en) * | 2019-08-27 | 2020-01-03 | 青岛海洋地质研究所 | In-situ planting and collecting system and method for sea natural gas hydrate |
| CN113494274A (en) * | 2021-08-23 | 2021-10-12 | 马一菲 | Totally-enclosed leakage-free exploitation scheme for solid, liquid and gas in submarine combustible ice exploitation logistics |
-
2015
- 2015-07-30 CN CN201520564154.3U patent/CN204851193U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019868A (en) * | 2015-07-30 | 2015-11-04 | 迈瑞尔实验设备（上海）有限公司 | Seabed combustible ice mining method |
| CN108071370A (en) * | 2016-11-15 | 2018-05-25 | 梁嘉麟 | The planning of common seabed combustible ice mineral reserve is exploited using decompression method |
| CN108071369A (en) * | 2016-11-15 | 2018-05-25 | 梁嘉麟 | The simple type recovery scheme of common seabed combustible ice mineral reserve |
| CN108386196A (en) * | 2018-04-09 | 2018-08-10 | 上海飞舟博源石油装备技术有限公司 | The mining system and recovery method of seabed combustible ice |
| CN109057758A (en) * | 2018-09-03 | 2018-12-21 | 岑益南 | A kind of device and method for exploiting seabed combustible ice |
| CN110644952A (en) * | 2019-08-27 | 2020-01-03 | 青岛海洋地质研究所 | In-situ planting and collecting system and method for sea natural gas hydrate |
| CN113494274A (en) * | 2021-08-23 | 2021-10-12 | 马一菲 | Totally-enclosed leakage-free exploitation scheme for solid, liquid and gas in submarine combustible ice exploitation logistics |
| CN113494274B (en) * | 2021-08-23 | 2022-09-09 | 马一菲 | Totally-enclosed leakage-free exploitation system and exploitation method for solid, liquid and gas in submarine combustible ice exploitation logistics |
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