CN203321458U - Exploiting device of seabed flammable ice - Google Patents
Exploiting device of seabed flammable ice Download PDFInfo
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- CN203321458U CN203321458U CN2013204028219U CN201320402821U CN203321458U CN 203321458 U CN203321458 U CN 203321458U CN 2013204028219 U CN2013204028219 U CN 2013204028219U CN 201320402821 U CN201320402821 U CN 201320402821U CN 203321458 U CN203321458 U CN 203321458U
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- combustible ice
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- seabed
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Abstract
The utility model discloses an exploiting device of seabed flammable ice. The exploiting device of the seabed flammable ice comprises a power positioning and collecting platform, wherein at least one lifting table is arranged on the power positioning and collecting platform. A collecting pipe is connected to the lifting table and is composed by sequentially connecting connection pipes. The bottom end of the collecting pipe is provided with a collecting suction head, and at least one pump chamber is arranged on the collecting pipe. A hydraulic motor for providing power and a hydraulic pump for conveying seawater and the flammable ice are arranged in the pump chamber, a discharging pipe is connected to the hydraulic pump, the discharging pipe is connected with a liquid storage tank, and a branch pipe is arranged on the discharging pipe and used for being connected with the storage tank used for storing seawater. An exhaust pipe is arranged on the collecting pipe, an exhaust valve is arranged on the exhaust pipe, and the exhaust pipe is connected with the liquid storage tank through a pressurizing device. With the depressurizing method, solid flammable ice can be liquefied to be liquid flammable ice, and exploiting is finished with the method that the flammable ice is directly conveyed out from a pipeline. The exploiting device of the seabed flammable ice has the advantages that the device is simple, operation is convenient to perform, and the marine environment can not be polluted.
Description
Technical field
The utility model relates to the energy extraction field, the quarrying apparatus of especially a kind of seabed combustible ice.
Background technology
Combustible ice, be gas hydrates, can be described as again " solid gas ", it is class ice, non-stoichiometric, the cage type crystalline compounds formed while being mixed under mesohigh and cryogenic conditions by water and natural gas under certain condition (salinity of suitable temperature, pressure, gas saturation, water, pH value etc.); The main gas that forms gas hydrates is methane, methane molecule content is surpassed to 99% gas hydrates and is commonly referred to methane hydrate; Because its main component is methane, combustible ice can be used as a kind of energy, in the situation that global coal, oil storage reduce day by day, finding new forms of energy becomes global study hotspot.
The exploitation method of combustible ice comprises following three kinds:
The thermal excitation extraction system: the thermal excitation extraction system is directly heated the gas hydrates layer, makes the temperature of gas hydrates layer surpass its equilibrium temperature, thereby impel gas hydrate dissociation, is water and gas extraction method.This method has experienced directly to development courses such as heated fluid injection heating in the gas hydrates layer, fire flooding heating, downhole electromagnetic heating and heating using microwaves.The thermal excitation extraction system can realize the heat injection that circulates, and the mode of action is very fast.Updating of mode of heating, promoted the development of thermal excitation extraction system.But this method solves the problem that efficiency of utilization is lower so far not yet well, and can only carry out spot heating, so the method still needs to be further improved.
The decompression extraction system: the decompression extraction system is a kind of exploitation method of impelling gas hydrate dissociation by reducing pressure.The decompression approach mainly contains two kinds: 1. adopt the low density slurries drilling well to reach the decompression purpose; 2. when natural gas hydrate layer below exists free gas or other fluids, the pressure that the free gas by pumping gas hydrates layer below or other fluids reduce the gas hydrates layer.The decompression extraction system does not need continuous agitation, and cost is lower, is applicable to the large tracts of land exploitation, is particularly useful for existing the exploitation of gas hydrates of underliing free gas-bearing formation, is the most promising a kind of technology in gas hydrates tradition exploitation method.But it has special requirement to the character of gas hydrates, while only having near gas hydrates is positioned at the temperature and pressure equilibrium boundary, the decompression extraction system just has economic feasibility.
Chemical agent injects extraction system: chemical agent injects extraction system by the gas hydrates layer, injecting some chemical agent, as salt solution, methyl alcohol, ethanol, ethylene glycol, glycerine etc., destroy the phase balance condition of gas hydrates, impel gas hydrate dissociation.Although this method can reduce initial stage energy input, defect clearly, the chemical agent somewhat expensive that it is required, slow to the effect of gas hydrates layer, serve environmental problem but also can be with, so the research that this method is dropped into is relatively less.
The seabed combustible ice resource that is richly stored with, when the combustible ice exploitation in seabed, the heat of thermal excitation extraction system and chemical agent inject the chemical agent that extraction system used and all can pollute seawater, and long-term exploitation meeting causes serious destruction to marine environment.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and generator is simple, the quarrying apparatus of easy to operate a kind of seabed combustible ice, it forms local depression by the seawater in draw-out device, when the liquefaction pressure of pressure lower than solid-state combustible ice, solid-state combustible ice is liquefied as liquid combustible ice, and directly transports from pipeline, and this exploitation method can not pollute marine environment.
The utility model solves the problems of the technologies described above adopted technical scheme:
The quarrying apparatus of a kind of seabed combustible ice, comprise the dynamic positioning acquisition platform, wherein, be provided with at least one elevating stage on the dynamic positioning acquisition platform, be connected with collection tube on elevating stage, this collection tube is connected and composed successively by tube connector, the bottom of collection tube is provided with the collection suction nozzle, be provided with at least one pump chamber on collection tube, hydraulic motor for power is provided and hydraulic pump for delivery of seawater and combustible ice are installed in pump chamber, be connected with discharge nozzle on hydraulic pump, discharge nozzle is connected with fluid reservoir, be provided with arm on this discharge nozzle, arm is connected with the holding vessel for storing seawater, be provided with stack on collection tube, be provided with outlet valve on stack, this stack is connected with described fluid reservoir through pressurized equipment.
For optimizing technique scheme, the measure of taking also comprises:
The diameter of above-mentioned pump chamber is greater than the diameter that gathers suction nozzle.
Be provided with two pump chambers on above-mentioned collection tube, be respectively arranged with hydraulic motor and hydraulic pump in this pump chamber, the hydraulic pump in pump chamber is connected in series.
Above-mentioned collection suction nozzle is hemispherical dome structure, gathers suction nozzle sealed skirt is set outward.
Above-mentioned pump chamber structure spherical in shape.
Dismantle and coordinate between above-mentioned elevating stage and described collection tube.
Be provided with gimbal on above-mentioned collection tube.
Be fixed with float tube on above-mentioned collection tube outer wall, drainage pump is installed in float tube.
The bottom of above-mentioned holding vessel is provided with gutter, is provided with draining valve on gutter, and this gutter is connected with described collection tube.
Compared with prior art, the quarrying apparatus of a kind of seabed of the present utility model combustible ice, adopt voltage drop method exploitation seabed combustible ice, the pollution of having avoided heating or chemical-agent technique to cause seawater, it contacts solid-state combustible ice by the collection suction nozzle and forms the exploitation space, the seawater extracted in collection tube by hydraulic pump reduces exploitation space internal pressure, make it form local depression, pressure in the exploitation space is lower than the liquefaction pressure of solid-state combustible ice, solid-state combustible ice is liquefied as liquid combustible ice, the liquid combustible ice of a part is extracted and directly delivers to fluid reservoir by hydraulic pump, the liquid combustible ice floating of remainder is gasificated into the gaseous state combustible ice, the gaseous state combustible ice is delivered to fluid reservoir after pressurized equipment is pressurized liquefied again by stack,
In addition, be provided with gimbal on collection tube, make harvester can overcome well the impact that wave produces; Dismantle and coordinate between elevating stage and collection tube, in the situation that stormy waves is very large, collection tube and elevating stage can be broken away from, the dynamic positioning acquisition platform sails out of production zone, and only collection tube is stayed to production zone, after stormy waves is little, elevating stage and collection tube reconnect and continue exploitation.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is I section enlarged drawing in Fig. 1;
Fig. 3 is II section enlarged drawing in Fig. 1;
Fig. 4 is the application state figure of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Be schematic diagram of the present utility model as shown in Figures 1 to 4,
Reference numeral wherein is: solid-state combustible ice A, liquid combustible ice B, seawater C, empty D, dynamic positioning acquisition platform 1, elevating stage 11, collection tube 2, float tube 21, drainage pump 21a, gimbal 22, collection suction nozzle 3, fluid reservoir 4, holding vessel 5, gutter 51, draining valve 52, pump chamber 6, hydraulic motor 61, hydraulic pump 62, discharge nozzle 7, arm 71, stack 8, outlet valve 81, pressurized equipment 9.
The quarrying apparatus of a kind of seabed combustible ice, comprise dynamic positioning acquisition platform 1, wherein, be provided with elevating stage 11 on dynamic positioning acquisition platform 1, the quantity of elevating stage 11 needs according to reality exploitation and the reserves of seabed combustible ice are determined, and elevating stage 11 drags and realizes lifting by determining the moment winch, be connected with collection tube 2 on elevating stage 11, this collection tube 2 is connected and composed successively by tube connector, the bottom of collection tube 2 is provided with and gathers suction nozzle 3, be provided with pump chamber 6 on collection tube 2, hydraulic motor for power is provided 61 and hydraulic pump 62 for delivery of seawater and combustible ice are installed in pump chamber 6, be connected with discharge nozzle 7 on hydraulic pump 62, discharge nozzle 7 is connected with fluid reservoir 4, be provided with arm 71 on this discharge nozzle 7, arm 71 is connected with the holding vessel 5 for storing seawater, be provided with stack 8 on collection tube 2, be provided with outlet valve 81 on stack 8, this stack 8 is connected with described fluid reservoir 4 through pressurized equipment 9.
In embodiment, the diameter of pump chamber 6 is greater than the diameter that gathers suction nozzle 3.
In embodiment, be provided with two pump chambers 6 on collection tube 2, be respectively arranged with hydraulic motor 61 and hydraulic pump 62 in this pump chamber 6, the hydraulic pump 62 in pump chamber 6 is connected in series, and when adopting the structure of a plurality of pump chambers 6, the diameter of pump chamber 6 from bottom to up, increases one by one.
In embodiment, gather suction nozzle 3 and be hemispherical dome structure, gather suction nozzle and be outside equipped with sealed skirt 31, sealed skirt 31 plays sealing function in the exploitation incipient stage, and sealing skirt 31 can consist of multilayer rubber.
In embodiment, pump chamber 6 structure spherical in shape.
In embodiment, between elevating stage 11 and described collection tube 2, dismantle and coordinate.
In embodiment, be provided with gimbal 22 on collection tube 2; Freedom is movable in the horizontal direction in the junction that can make collection tube 2 that arranges of gimbal 22, can effectively overcome the impact that the heave of waves brings when marine exploitation.
In embodiment, on collection tube 2 outer walls, be fixed with float tube 21, drainage pump 21a is installed in float tube 21.
In embodiment, the bottom of holding vessel 5 is provided with gutter 51, is provided with draining valve 52 on gutter 51, and this gutter 51 is connected with described collection tube 2.
Because need complete exploitation work in seabed, install suffered pressure and be directly proportional to the degree of depth of living in, for the bearing capacity of assurance device, therefore gather suction nozzle 3, adopt hemispherical dome structure; And pump chamber 6 adopts spherical structure, guaranteed its bearing capacity, also make its inner space large as much as possible.
It is larger that operation on the sea is affected by wave, is provided with gimbal 22 on collection tube 2, can effectively overcome the impact of wave, makes device also can realize steady exploitation in wave; Run in the situation that stormy waves is very large, collection tube 2 and elevating stage 11 can also be broken away from, allow dynamic positioning acquisition platform 1 sail out of production zone, to guarantee dynamic positioning acquisition platform 1 and staff's safety.
Be fixed with float tube 21 on collection tube 2 outer walls, drainage pump 21a is installed in float tube 21, the length of float tube 21 can be determined as required, and float tube 21 can be formed by connecting by the float tube tube connector; After collection tube 2 and float tube 21 are in place, start drainage pump 21a the seawater in collection tube 2 is extracted out, making float tube 21 can be float, the lifting of collection tube 2 and lifting is become and be more prone to.
As shown in Figure 4, the exploitation method of the quarrying apparatus of a kind of seabed combustible ice comprises the following steps:
Step 1, linkage, be connected collection tube 2 with the elevating stage 11 on dynamic positioning acquisition platform 1, the collection suction nozzle 3 of collection tube 2 bottoms is contacted with the solid-state combustible ice A in seabed;
After step 2, device have connected, start the hydraulic pump 62 in pump chamber 6, hydraulic pump 62 is extracted the seawater C in collection tube 2 be delivered to holding vessel 5 by discharge nozzle 7 out, makes to gather the interior formation local depression of suction nozzle 3;
After step 3, the interior formation local depression of collection suction nozzle 3, the solid-state combustible ice A that gather in suction nozzle 3 are liquefied as liquid combustible ice B, and float gradually;
Step 4, solid-state combustible ice A liquefaction part form empty D, gather suction nozzle 3 and descend and be absorbed in the D of this cavity, and elevating stage 11 and collection tube 2 descend thereupon, until pump chamber 6 is blocked cavity mouthful;
The liquid combustible ice B part that step 5, liquefaction form is extracted by hydraulic pump 62, be delivered to fluid reservoir 4 by discharge nozzle 7, remainder continues floating, in floating-upward process, pressure reduces liquid combustible ice B and is gasificated into the gaseous state combustible ice, and the gaseous state combustible ice is delivered to fluid reservoir 4 by the stack 8 at collection tube 2 tops after pressurized equipment 9 is pressurized liquefied.
Operating principle: P=ρ gh, wherein P means pressure, and ρ means density of sea water, and g is gravity constant, h means the degree of depth of living in, from above-mentioned pressure formula, can draw, pressure is directly proportional to the degree of depth of living in, and solid-state combustible ice A must guarantee hyperbaric environment ability stable existence, once pressure decreased to liquefaction pressure, start liquefaction and form liquid combustible ice B, when pressure continues to be reduced to vapor pressure, liquid combustible ice B will gasify and form the gaseous state combustible ice.
Based on above theoretical foundation, dynamic positioning acquisition platform 1 drives to marine site, production zone top, connect quarrying apparatus, collection tube 2 is put into to seabed, the collection suction nozzle 3 of collection tube 2 bottoms is contacted with the solid-state combustible ice A in seabed, regulate elevating stage 11, making to gather suction nozzle 3 presses solid-state combustible ice A surface and forms the exploitation space, be subject to Water Pressure and seal around making to gather suction nozzle 3 and gather suction nozzle 3 outer sealed skirts 31, thereby guarantee carrying out smoothly of exploitation, then primer fluid pressure motor 61 and hydraulic pump 62, the seawater C extracted in collection tube 2 by hydraulic pump 62, the seawater C extracted is delivered in holding vessel 5 by discharge nozzle 7 and arm 71, seawater C in collection tube 2 is drawn out of, thereby the water level in collection tube 2 descends collection tube 2 internal pressures is reduced, make the interior formation local depression of collection tube 2, when pressure drop during to liquefaction pressure, solid-state combustible ice A is liquefied as liquid combustible ice B, because the density ratio seawater C of liquid combustible ice B is little, liquid combustible ice B will float, in floating-upward process, the liquid combustible ice B of a part is extracted by hydraulic pump 62, now, 7 outlets of switching discharge nozzle, the liquid combustible ice B be extracted directly is delivered in fluid reservoir 4 through discharge nozzle 7, and the liquid combustible ice B of remainder continues floating, continue in floating-upward process, pressure constantly reduces, when its pressure during lower than the vapor pressure of liquid combustible ice B, liquid combustible ice B is gasificated into the gaseous state combustible ice, the gaseous state combustible ice rises to collection tube 2 tops, and be delivered to fluid reservoir 4 from the stack 8 at collection tube 2 tops after pressurized equipment 9 is pressurized liquefied, after solid-state combustible ice A is liquefied as liquid combustible ice B, gather suction nozzle 3 near zones and form empty D, regulate elevating stage 11, making to gather suction nozzle 3 declines is trapped in the D of this cavity, now, turn on sealed skirt 31 and be placed in empty D, gather suction nozzle 3 and constantly descend until nethermost pump chamber 6 is blocked cavity mouthful, make in empty D again to form the exploitation space and continue exploitation.
Quarrying apparatus of the present utility model can arrange a plurality of elevating stages 11 on dynamic positioning acquisition platform 1, and each elevating stage 11 connects respectively collection tube 2 and exploits simultaneously; After a production zone has been exploited, collection tube 2 can be mentioned, then mobile dynamic positioning acquisition platform 1 to another production zone is exploited, very convenient.
Need to solve orientation problem and overcome the impact of wave in marine exploitation, quarrying apparatus of the present utility model completes location by dynamic positioning acquisition platform 1, impact for the wave that overcomes, adopt gimbal 22 to realize the freely movable of horizontal direction, adopt elevating stage 11 to realize the freely movable of vertical direction; Because the diameter that gathers suction nozzle 3 is limited, the finite volume of the combustible ice that can exploit at an exploitation point, the outer float tube 21 that is fixed with of collection tube 2 of the present utility model, after being extracted, seawater in float tube 21 forms float, required work while slinging that the buoyancy that float produces can reduce collection tube 2 greatly, make the convenience of the lifting change of collection tube 2, thereby improve the speed that the exploitation point shifts.
Most preferred embodiment of the present utility model is illustrated, and the various variations of being made by those of ordinary skills or remodeling can not break away from scope of the present utility model.
Claims (9)
1. the quarrying apparatus of a seabed combustible ice, comprise dynamic positioning acquisition platform (1), it is characterized in that: be provided with at least one elevating stage (11) on described dynamic positioning acquisition platform (1), be connected with collection tube (2) on described elevating stage (11), this collection tube (2) is connected and composed successively by tube connector, the bottom of described collection tube (2) is provided with and gathers suction nozzle (3), be provided with at least one pump chamber (6) on described collection tube (2), hydraulic motor (61) for power is provided and hydraulic pump (62) for delivery of seawater and combustible ice are installed in described pump chamber (6), be connected with discharge nozzle (7) on described hydraulic pump (62), described discharge nozzle (7) is connected with fluid reservoir (4), be provided with arm (71) on this discharge nozzle (7), described arm (71) is connected with the holding vessel (5) for storing seawater, be provided with stack (8) on described collection tube (2), be provided with outlet valve (81) on described stack (8), this stack (8) is connected with described fluid reservoir (4) through pressurized equipment (9).
2. the quarrying apparatus of a kind of seabed according to claim 1 combustible ice is characterized in that: the diameter of described pump chamber (6) is greater than the diameter that gathers suction nozzle (3).
3. the quarrying apparatus of a kind of seabed according to claim 2 combustible ice, it is characterized in that: be provided with two pump chambers (6) on described collection tube (2), be respectively arranged with hydraulic motor (61) and hydraulic pump (62) in this pump chamber (6), the hydraulic pump (62) in described pump chamber (6) is connected in series.
4. the quarrying apparatus of a kind of seabed according to claim 3 combustible ice, it is characterized in that: described collection suction nozzle (3) is hemispherical dome structure, the outer sealed skirt (31) that arranges of described collection suction nozzle (3).
5. the quarrying apparatus of a kind of seabed according to claim 4 combustible ice, is characterized in that: described pump chamber (6) structure spherical in shape.
6. the quarrying apparatus of a kind of seabed according to claim 5 combustible ice is characterized in that: between described elevating stage (11) and described collection tube (2), dismantle and coordinate.
7. the quarrying apparatus of a kind of seabed according to claim 6 combustible ice, is characterized in that: be provided with gimbal (22) on described collection tube (2).
8. the quarrying apparatus of a kind of seabed according to claim 7 combustible ice, is characterized in that: be fixed with float tube (21) on described collection tube (2) outer wall, drainage pump (21a) is installed in described float tube (21).
9. the quarrying apparatus of a kind of seabed according to claim 8 combustible ice, it is characterized in that: the bottom of described holding vessel (5) is provided with gutter (51), be provided with draining valve (52) on described gutter (51), this gutter (51) is connected with described collection tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204028219U CN203321458U (en) | 2013-07-08 | 2013-07-08 | Exploiting device of seabed flammable ice |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204028219U CN203321458U (en) | 2013-07-08 | 2013-07-08 | Exploiting device of seabed flammable ice |
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| CN203321458U true CN203321458U (en) | 2013-12-04 |
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| CN2013204028219U Expired - Fee Related CN203321458U (en) | 2013-07-08 | 2013-07-08 | Exploiting device of seabed flammable ice |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352676A (en) * | 2013-07-08 | 2013-10-16 | 赵颖寅 | Device and method for exploiting submarine combustible ice |
| CN105331353A (en) * | 2014-08-12 | 2016-02-17 | 成都能生材科技开发有限责任公司 | Method for preparing SCD capable of sub-cooling and liquefying flammable ice, reducing pressure and freezing point of nano pore seam |
| 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 |
-
2013
- 2013-07-08 CN CN2013204028219U patent/CN203321458U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352676A (en) * | 2013-07-08 | 2013-10-16 | 赵颖寅 | Device and method for exploiting submarine combustible ice |
| CN103352676B (en) * | 2013-07-08 | 2015-09-16 | 赵光书 | The quarrying apparatus of a kind of seabed combustible ice and exploitation method |
| CN105331353A (en) * | 2014-08-12 | 2016-02-17 | 成都能生材科技开发有限责任公司 | Method for preparing SCD capable of sub-cooling and liquefying flammable ice, reducing pressure and freezing point of nano pore seam |
| 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140708 |
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