CN202755954U - Device for exploiting of deep-sea combustible ice - Google Patents
Device for exploiting of deep-sea combustible ice Download PDFInfo
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- CN202755954U CN202755954U CN 201220411720 CN201220411720U CN202755954U CN 202755954 U CN202755954 U CN 202755954U CN 201220411720 CN201220411720 CN 201220411720 CN 201220411720 U CN201220411720 U CN 201220411720U CN 202755954 U CN202755954 U CN 202755954U
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Abstract
The utility model relates to a device for exploiting of deep-sea combustible ice. The device comprises a supercritical water oxidation reactor which is balanced in inner pressure and outer pressure and is located on a seabed. The supercritical water oxidation reactor is connected with an oxygen pressure pump and an oxygen preparation device through a deep-sea oxygen heater. The lower portion of the supercritical water oxidation reactor is connected with a combustible ice feeding device and an ignition device. The top end of the supercritical water oxidation reactor is connected with a deep-sea vapor heater. A hot vapor outlet of the deep-sea vapor heater is connected with a steam turbine in the sea level. The steam turbine is connected with a generator. The bottom of the deep-sea vapor heater is communicated with the supercritical water oxidation reactor through a gas-liquid separator, a vaporization water pump, and a deep-sea evaporable water heater. According to the device, the deep-sea combustible ice is oxidized in the deep-sea supercritical water state, and heat released through oxidization is utilized for electricity generation so that volatilization in the process of transporting the deep-sea combustible ice above the sea level is avoided, and potential environment hazards are eliminated.
Description
Technical field
The utility model relates to a kind of method and apparatus of exploiting the deep-sea combustible ice, and particularly a kind of method of utilizing supercritical water oxidation method exploitation deep-sea combustible ice belongs to the energy and environment technical field.
Background technology
Combustible ice, the formal name used at school gas hydrates are crystalline materials of being iced shape under the high pressure low temperature condition by the class that natural gas and water form, are distributed in the halmeic deposit.Methane accounts for 80%-99.9% in the combustible ice, can directly light, and fuel value is high, cleanliness without any pollution.The birth of combustible ice will be satisfied three conditions at least: the firstth, and temperature can not be too high, if temperature is higher than 20 ℃, it will " disappear in a flash ", so the temperature at deep-sea is the formation of suitable combustible ice; The secondth, it is enough large that pressure is wanted, and the darker pressure in deep-sea is just larger, and combustible ice is also just more stable; The 3rd is that the methane source of the gas will be arranged, and the deposit of deep-sea extinct plants and animal corpse can produce methane after being decomposed by bacterium.So each large midocean all has distribution to combustible ice in the world.
Evaluation result shows, only in the zone, deep-sea, the distribution area of combustible ice just reaches 4,000 ten thousand square kilometres, takes up an area 1/4 of the ball ocean gross area.At present, the combustible ice distributed area of having found in the world is 116 places nearly, its ore bed thick, scale is big, is that the conventional gas field can't be compared.Only be the combustible ice reserves of verifying now, the reserves of just adding up than whole world coal, oil and natural gas are also Duoed several times.
It is solid-state that combustible ice is, and can the such blowing of image-stone oil exploitation not flow out.If it from the deep-sea piece take out of, transporting in the process from the deep-sea to the sea, methane will volatilize totally, also can cause significant damage to atmosphere simultaneously.In order to obtain this clean energy resource, countries in the world are all in the exploitation method of studying combustible ice.
Present recovery scheme mainly contains three kinds.Scheme one is pyrolysismethod.The characteristic of utilizing " combustible ice " to decompose when heating makes it by the solid-state methane steam that decomposites.But the method difficulty is bad collection.Scheme two is voltage drop methods.There is scientist to propose nuke rubbish is imbedded the end, ground, utilizes nuclear radiation effect to make its decomposition.Scheme three is " displacement methods ".Carbon dioxide injection is entered the methane hydrate reservoir at deep-sea, because carbon dioxide is easy to form hydrate than methane, thereby just the methane molecule in the methane hydrate " may be squeezed away ", thereby it is cemented out.But they all are faced with pyrolysismethod and lay equally pipeline and efficient problem of collecting.At present, only be in research and experimental stage for the exploitation of combustible ice in the world.
Supercritical water oxidation method is under the high-temperature and high-pressure conditions of 374 ℃ of the critical-temperatures that surpasses water and critical pressure 22.1MPa, with air or other oxidants, with organic matter or the reducing inorganic thing method in aqueous phase " burning " oxidation.Supercritical water has density, solvability and the good flowability of similar liquids, has again diffusion coefficient and the low-viscosity of similar gas simultaneously.In supercritical water, the boundary of gas-liquid two-phase disappears, and organic matter and oxygen complete miscibility in supercritical water forms the homogeneous phase system, and reaction speed is accelerated greatly.Facts have proved in a large number, in very short reaction time, the rapid burns oxygen of the organic matter more than 99.99% changes into carbon dioxide, water and other nontoxic end product.Whole combustion process produces a large amount of heat, under the prerequisite that satisfies id reaction institute calorific requirement, also has most of heat can supply to utilize.
Summary of the invention
The purpose of this utility model provides a kind of method and apparatus of exploiting the deep-sea combustible ice, solve the problem that methane is overflowed and can't be collected in the combustible ice recovery process, utilize supercritical water oxidation method with combustible ice on the spot oxidation at the deep-sea, emit the heat heating water and be used for generating, for the exploitation of deep-sea combustible ice provides new thinking.
The technical scheme that the utility model is taked is:
A kind of device of exploiting the deep-sea combustible ice, the overcritical water oxidization reactor that comprises the internal and external pressure balance that is positioned at the seabed, overcritical water oxidization reactor links to each other with oxygen pressing pump and oxygen preparation facilities by the deep-sea oxygen heater, the bottom of overcritical water oxidization reactor is connected with combustible ice charging gear and igniter, the top of overcritical water oxidization reactor connects the deep-sea steam heater, the hot vapor outlet of deep-sea steam heater links to each other with the steam turbine more than the sea level, steam turbine connects generator, and gas-liquid separator is passed through in the bottom of deep-sea steam heater, the evaporation water pump, deep-sea evaporation water heater communicates with overcritical water oxidization reactor.
Described steam turbine passes into low pressure sea Steam Turbine Regenerative System by condenser, condensate pump with condensate water simultaneously, low pressure sea Steam Turbine Regenerative System connects high pressure sea Steam Turbine Regenerative System by oxygen-eliminating device, high-pressure hydraulic pump, and high pressure sea Steam Turbine Regenerative System communicates with the deep-sea steam heater.
Described gas-liquid separator delivery port has one the tunnel to link to each other with oxygen-eliminating device.
The bottom of described overcritical water oxidization reactor links to each other with the deep-sea oxygen heater.
Advantage of the present utility model is:
(1) with combustible ice oxidation under the supercritical water state of deep-sea, utilizes oxidation heat liberation to generate electricity, avoided combustible ice is transported to volatilization in the process more than the sea level, eliminate environment hidden danger;
(2) the startup heat of initial reaction is by extraneous thermal source supply in the reactor, and oxidation reaction begins the self-supporting heat supply of rear realization; The brackish water preheating that oxygen is discharged by reactor bottom; Oxidation reaction product after the cooling, wherein a part is directed to more than the sea level, water is separated with carbon dioxide and other on-condensible gases, obtain fresh water, except the moisture film and system process water supply of supply evaporation water with the formation reactor wall, also can be used for living water use, most of product directly is thrown into the deep-sea, carbon dioxide exists with liquid form, and the utilization rate of energy is high, and is substantially lossless;
(3) at reactor and the steam heater at deep-sea, external and internal pressure is overcritical, can not adopt high voltage bearing material, has reduced the selection requirement of material.
Description of drawings
Fig. 1 is the utility model setting drawing;
Wherein,: 1. combustible ice charging gear, 2. overcritical water oxidization reactor, 3. oxygen preparation facilities, 4. oxygen pressing pump, 5. deep-sea oxygen heater, 6. deep-sea steam heater, 7 deep-sea evaporation water heaters, 8, evaporation water pump, 9. gas-liquid separator, 10. steam turbine, 11. generators, 12. condensers, 13. condensate pumps, 14. low pressure sea Steam Turbine Regenerative System, 15. oxygen-eliminating devices, 16. high-pressure hydraulic pumps, 17. high pressure sea Steam Turbine Regenerative System, 18 igniters.
The specific embodiment
Further specify below in conjunction with the specific embodiment.
A kind of device of exploiting the deep-sea combustible ice, the overcritical water oxidization reactor 2 that comprises the internal and external pressure balance that is positioned at the seabed, overcritical water oxidization reactor 2 links to each other with oxygen pressing pump 4 and oxygen preparation facilities 3 by deep-sea oxygen heater 5, the bottom of overcritical water oxidization reactor 2 is connected with combustible ice charging gear 1 and igniter 18, the top of overcritical water oxidization reactor 2 connects deep-sea steam heater 6, the hot vapor outlet of deep-sea steam heater 6 links to each other with the steam turbine 10 more than the sea level, steam turbine 10 connects generator 11, and the bottom of deep-sea steam heater 6 is by gas-liquid separator 9, evaporation water pump 8, deep-sea evaporation water heater 7 communicates with overcritical water oxidization reactor 2.
2250m is as example under the sea level, and the method for this utility model is described:
2250m arranges overcritical water oxidization reactor 2 under the sea level, based on internal and external pressure balance, combustible ice is delivered in the overcritical water oxidization reactor 2 by combustible ice charging gear 1.Oxygen obtains by oxygen preparation facilities 3 more than the sea level, utilize 4 superchargings of oxygen pressing pump, the pressure of oxygen pressure and overcritical water oxidization reactor present position basic identical (being higher than 22.1MPa), the salt solution that utilizes overcritical water oxidization reactor bottom to discharge enters supercritical water oxidation reactor 2 inside by oxygen heater 5 preheatings in deep-sea are laggard.The startup heat of initial reaction such as igniter 18, can realize self-supporting heat supply by extraneous thermal source supply after oxidation reaction begins.Product after the oxidation reaction is mainly carbon dioxide and water and small part on-condensible gas, carries heat, will be by steamer 10 steam discharge condensate water (the being higher than 22.5MPa) heating of supplying with more than the sea level by deep-sea steam heater 6.After the oxidation reaction product cooling, wherein a part causes the sea, carry out gas-liquid separation by gas-liquid separator 9, do not contain salinity in the condensate water, wherein a part is squeezed into deep-sea evaporation water heater 7 and is carried out preheating by evaporation water pump 8, then enter overcritical water oxidization reactor 2, form the subcritical moisture film of one deck at inwall, for the protection of reactor wall; Another part enters oxygen-eliminating device 15 as make up water, enters system; The residue condensate water is as living water use.Enter marinely behind most of oxidation product preheating evaporation water, carbon dioxide exists with liquid form.Turbine discharge is condensed into condensate water through condenser, squeeze into preheating in the Steam Turbine Regenerative System 14 of low pressure sea by condensate pump 13, connection enters the circulating system with make up water after by oxygen-eliminating device 15, by high-pressure hydraulic pump 16 be forced into be higher than 22.5MPa after, enter high pressure sea Steam Turbine Regenerative System 17 and continue heating, wherein the sea Steam Turbine Regenerative System provides thermal source by extracted steam from turbine.The water of process Multi-stage heating enters the deep-sea and is heated to 540 ℃ by deep-sea steam heater 6, enters steam turbine 10 and drives generators 11 generatings.
Claims (4)
1. device of exploiting the deep-sea combustible ice, it is characterized in that, the overcritical water oxidization reactor that comprises the internal and external pressure balance that is positioned at the seabed, overcritical water oxidization reactor links to each other with oxygen pressing pump and oxygen preparation facilities by the deep-sea oxygen heater, the bottom of overcritical water oxidization reactor is connected with combustible ice charging gear and igniter, the top of overcritical water oxidization reactor connects the deep-sea steam heater, the hot vapor outlet of deep-sea steam heater links to each other with the steam turbine more than the sea level, steam turbine connects generator, and gas-liquid separator is passed through in the bottom of deep-sea steam heater, the evaporation water pump, deep-sea evaporation water heater communicates with overcritical water oxidization reactor.
2. the device of exploitation according to claim 1 deep-sea combustible ice, it is characterized in that, described steam turbine passes into low pressure sea Steam Turbine Regenerative System by condenser, condensate pump with condensate water simultaneously, low pressure sea Steam Turbine Regenerative System connects high pressure sea Steam Turbine Regenerative System by oxygen-eliminating device, high-pressure hydraulic pump, and high pressure sea Steam Turbine Regenerative System communicates with the deep-sea steam heater.
3. the device of exploitation according to claim 1 deep-sea combustible ice is characterized in that, described gas-liquid separator delivery port has one the tunnel to link to each other with oxygen-eliminating device.
4. the device of exploitation according to claim 1 deep-sea combustible ice is characterized in that, the bottom of described overcritical water oxidization reactor links to each other with the deep-sea oxygen heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411720 CN202755954U (en) | 2012-08-17 | 2012-08-17 | Device for exploiting of deep-sea combustible ice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411720 CN202755954U (en) | 2012-08-17 | 2012-08-17 | Device for exploiting of deep-sea combustible ice |
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| Publication Number | Publication Date |
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| CN202755954U true CN202755954U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220411720 Expired - Lifetime CN202755954U (en) | 2012-08-17 | 2012-08-17 | Device for exploiting of deep-sea combustible ice |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787830A (en) * | 2012-08-17 | 2012-11-21 | 山东大学 | Method and device for exploiting deep sea combustible ice |
| CN112127849A (en) * | 2019-06-24 | 2020-12-25 | 南京延长反应技术研究院有限公司 | Control system for exploiting combustible ice |
-
2012
- 2012-08-17 CN CN 201220411720 patent/CN202755954U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787830A (en) * | 2012-08-17 | 2012-11-21 | 山东大学 | Method and device for exploiting deep sea combustible ice |
| CN102787830B (en) * | 2012-08-17 | 2015-01-21 | 山东大学 | Method and device for exploiting deep sea combustible ice |
| CN112127849A (en) * | 2019-06-24 | 2020-12-25 | 南京延长反应技术研究院有限公司 | Control system for exploiting combustible ice |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20150121 |
|
| RGAV | Abandon patent right to avoid regrant |