CN203335050U - Steam generating device for seabed natural gas hydrate exploitation - Google Patents
Steam generating device for seabed natural gas hydrate exploitation Download PDFInfo
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- CN203335050U CN203335050U CN2013203666693U CN201320366669U CN203335050U CN 203335050 U CN203335050 U CN 203335050U CN 2013203666693 U CN2013203666693 U CN 2013203666693U CN 201320366669 U CN201320366669 U CN 201320366669U CN 203335050 U CN203335050 U CN 203335050U
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Abstract
The utility model relates to a steam generating device for seabed natural gas hydrate exploitation. According to the technical scheme, the steam generating device for the seabed natural gas hydrate exploitation comprises a combustor, a steam pipeline, a combustion chamber, a high-temperature smoke pipeline, a water jacket chamber, rib plates, a water inlet pipeline, a combustion air pipeline and a fuel gas pipeline, wherein the water jacket chamber and the combustion chamber are in a cylindrical shape, the water jacket chamber is provided with the water inlet pipeline and the steam pipeline, the water jacket chamber wraps the combustion chamber, and the space between the water jacket chamber and the combustion chamber is filled with water. The rib plates are arranged on the outer wall of the combustion chamber, the lower end of the combustor stretches into the combustion chamber, an electric spark igniter is arranged on the combustor, and the combustor is connected with the combustion air pipeline, the fuel gas pipeline and the high-temperature smoke pipeline. The steam generating device for the seabed natural gas hydrate exploitation has the advantages that due to the fact that the steam generating device directly generates high-temperature steam under water through combustion, heat loss in the conveying process of the steam is avoided, high-temperature combustion products generated by combustion heat the water in a water jacket firstly and then are discharged together with the hot steam, heat is used fully, and therefore the steam generating device has good economic benefit and application prospect.
Description
Technical field
The utility model relates to a kind of device that can produce under water high-temperature steam, particularly a kind of sea bed gas hydrate exploitation steam raising plant.
Background technology
Along with the exhaustion day by day of land oil fossil energy, the mankind are constantly finding the new energy.Gas hydrates, as a kind of important and clean potential energy source, just are being subject to the attention of various countries scientist and national governments.Unique crystal structure and Molecular Geometries have determined the concentrate ability of gas of the height of gas hydrates uniquenesses, and the unit volume gas hydrates can discharge 160～180 times of volume methane gass.It is estimated, the ocean of 9O% possesses the occurrence condition of gas hydrates.Accordingly, estimate at present the twice that global gas hydrates phosphorus content is global fossil fuel (oil, natural gas and coal) phosphorus content.In this sense, the alternative energy resource that gas hydrates become the 21 century clean and effective belongs to undisputable fact substantially, and the discovery of Gas Hydrate, exploration, exploitation and research are valuable.
Gas hydrates exist with solid state under stratum storage condition (low temperature, high pressure), and in recovery process due to decompression or heat up, will resolve into water and natural gas.The exploitation of gas hydrates must be controlled the decomposition of solid to liquid, gas, controls the gas and the water that decompose in recovery process and can again form gas hydrates.This is the technological difficulties of exploitation of gas hydrates.
Thermal methods is most study in exploitation of gas hydrates, the most deep exploitation of gas hydrates technology.Existing thermal methods, for utilizing drilling technique pipe laying in the gas hydrates stabilized zone, is heated hydrate formation, improves reservoir temperature, causes gas hydrate dissociation, then collects with pipeline the natural gas decomposited.Its main method be the steam that will produce on ground or sea-based platform, hot water, hot salt brine from ground injected water compound layer, these methods respectively have its advantages and disadvantages.For example, steam injection is very large in the heat waste of thin hydrate gas-bearing formation, and only when gas-bearing formation is greater than 15m, the thermal efficiency is just higher; The heat waste of injection hot water is little than steam injection, but the injection rate of the interior water of hydrate gas-bearing formation has limited the extensive use of the method.Hot production technique is particularly in permafrost area, even utilize insulated piping, permafrost haorizon also can reduce the efficient heat that passes to reservoir.In a word, the heat waste in the Heat And Mass Transfer process is the main cause of restriction thermal methods.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of sea bed gas hydrate exploitation steam raising plant is provided, can avoid the heat waste in the vapor transmission process, reach the purpose of efficiently extracting natural gas hydrate, and can stablize lasting operation.
Its technical scheme is: comprise burner, steam pipeline, combustion chamber, high-temperature flue gas pipeline, water jacket compartment, floor, inlet channel, combustion air pipeline, gas pipeline, described water jacket compartment and combustion chamber are cylindrical, water jacket compartment is provided with inlet channel and steam pipeline, water jacket compartment wraps combustion chamber, between water jacket compartment and combustion chamber, is full of water; The outer wall of combustion chamber is provided with a plurality of floors; Combustion chamber is stretched in the lower end of described burner; burner is provided with electric spark igniter; and connection combustion air pipeline, gas pipeline and high-temperature flue gas pipeline; combustion gas enters combustion chamber by the compressor pressurizes on sea-based platform via burner; combustion air enters combustion chamber by the combustion air pipeline, is formed flame combustion in combustion chamber by electric spark igniter, and flame produces the water in the heat heating water jacket; produce high-temperature steam, by the steam pipeline pass-out.
The outer wall of above-mentioned combustion chamber is provided with the floor of a plurality of rectangular shapes.
Above-mentioned inlet channel is connected to the top of water jacket compartment.
Above-mentioned steam pipeline is connected to the sidewall of water jacket compartment.
Above-mentioned high-temperature flue gas install pipeline is in the bottom of combustion chamber.
The beneficial effects of the utility model are: because this device directly burns under water and produces high-temperature steam, avoided the heat waste in the steam transportation, and the water in the first heating water jacket of the high-temperature combustion product that burning produces, after with vapours, discharge, take full advantage of heat.So this device has economic benefit and application prospect preferably.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: burner 1, steam pipeline 2, combustion chamber 3, high-temperature flue gas pipeline 4, water jacket compartment 5, floor 6, inlet channel 7, combustion air pipeline 8, gas pipeline 9, electric spark igniter 10.
The specific embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises burner 1, steam pipeline 2, combustion chamber 3, high-temperature flue gas pipeline 4, water jacket compartment 5, floor 6, inlet channel 7, combustion air pipeline 8, gas pipeline 9, described water jacket compartment 5 and combustion chamber 3 are cylindrical, water jacket compartment 5 is provided with inlet channel 7 and steam pipeline 2, water jacket compartment 5 wraps combustion chamber 3, between water jacket compartment 5 and combustion chamber 3, is full of water; The outer wall of combustion chamber 3 is provided with a plurality of floors 6; Combustion chamber 3 is stretched in the lower end of described burner 1, and burner 1 is provided with electric spark igniter 10, and connects combustion air pipeline 8, gas pipeline 9 and high-temperature flue gas pipeline 4; Wherein, the outer wall of combustion chamber 3 is provided with the floor 6 of a plurality of rectangular shapes, and inlet channel 7 is connected to the top of water jacket compartment 5, and steam pipeline 2 is connected to the sidewall of water jacket compartment 5, and high-temperature flue gas pipeline 4 is arranged on the bottom of combustion chamber 3.
During use; first by the seabed rig, at the gas hydrates reservoir, get out a hole; the utility model is put into to boring; combustion gas enters combustion chamber 3 by the compressor pressurizes on sea-based platform via burner 1; combustion air enters combustion chamber 3 by combustion air pipeline 8, by electric spark igniter 10, forms flame combustion in combustion chamber, and flame produces the water in the heat heating water jacket; produce high-temperature steam, by the steam pipeline pass-out.Flame produces the water in the heat heating water jacket, produces high-temperature steam, by the steam pipeline pass-out, and heating seabed solid natural gas hydrate.The high-temperature combustion product that burning produces is first passed in the water in water jacket by high-temperature flue gas pipeline 4, plays equally heating effect, after with vapours, discharge.
Gas hydrates heating vaporization, be collected into and carry out subsequent treatment on the bank via pipeline.
The required natural gas that burns is provided by the compressor on sea-based platform, via gas pipeline, enters steam generator.Required combustion air is provided by blower fan.Water in water jacket is provided by water pump.
Due to this device directly under water burning produce high-temperature steam, avoided the heat waste in the steam transportation, and the water in the first heating water jacket of high-temperature combustion product that produces of burning, after with vapours, discharge, take full advantage of heat.So this device has economic benefit and application prospect preferably.
Claims (5)
1. a sea bed gas hydrate is exploited steam raising plant, it is characterized in that: comprise burner (1), steam pipeline (2), combustion chamber (3), high-temperature flue gas pipeline (4), water jacket compartment (5), floor (6), inlet channel (7), combustion air pipeline (8), gas pipeline (9), described water jacket compartment (5) and combustion chamber (3) are cylindrical, water jacket compartment (5) is provided with inlet channel (7) and steam pipeline (2), water jacket compartment (5) wraps combustion chamber (3), between water jacket compartment (5) and combustion chamber (3), is full of water; The outer wall of combustion chamber (3) is provided with a plurality of floors (6); Combustion chamber (3) is stretched in the lower end of described burner (1); burner (1) is provided with electric spark igniter (10); and connection combustion air pipeline (8), gas pipeline (9) and high-temperature flue gas pipeline (4); combustion gas enters combustion chamber (3) by the compressor pressurizes on sea-based platform via burner (1); combustion air enters combustion chamber (3) by combustion air pipeline (8); form flame combustion by electric spark igniter (10) in combustion chamber; flame produces the water in the heat heating water jacket; produce high-temperature steam, by the steam pipeline pass-out.
2. sea bed gas hydrate according to claim 1 is exploited steam raising plant, and it is characterized in that: the outer wall of described combustion chamber (3) is provided with the floor (6) of a plurality of rectangular shapes.
3. sea bed gas hydrate according to claim 1 is exploited steam raising plant, and it is characterized in that: described inlet channel (7) is connected to the top of water jacket compartment (5).
4. sea bed gas hydrate according to claim 1 is exploited steam raising plant, and it is characterized in that: described steam pipeline (2) is connected to the sidewall of water jacket compartment (5).
5. sea bed gas hydrate according to claim 1 is exploited steam raising plant, and it is characterized in that: described high-temperature flue gas pipeline (4) is arranged on the bottom of combustion chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203666693U CN203335050U (en) | 2013-06-25 | 2013-06-25 | Steam generating device for seabed natural gas hydrate exploitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203666693U CN203335050U (en) | 2013-06-25 | 2013-06-25 | Steam generating device for seabed natural gas hydrate exploitation |
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| CN203335050U true CN203335050U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203666693U Expired - Fee Related CN203335050U (en) | 2013-06-25 | 2013-06-25 | Steam generating device for seabed natural gas hydrate exploitation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234680A (en) * | 2014-09-12 | 2014-12-24 | 哈尔滨工程大学 | Rapid thermal activation exploitation method for natural gas hydrate |
| CN104763998A (en) * | 2015-03-11 | 2015-07-08 | 中国石油大学(华东) | Two-stage afterheat recovering type split steam generating device |
| CN105134152A (en) * | 2015-08-24 | 2015-12-09 | 中国石油大学(北京) | Method and system for extracting natural gas hydrate through thermal jet flow |
| CN105735958A (en) * | 2016-04-27 | 2016-07-06 | 阳泉市应用技术研究所 | Method and system for increasing coal bed gas permeability based on water vapor injection |
| CN107654219A (en) * | 2017-11-03 | 2018-02-02 | 西南石油大学 | A kind of steam soak method exploitation of gas hydrate system and technique |
| CN113294125A (en) * | 2021-04-26 | 2021-08-24 | 西南石油大学 | Gas lift exploitation device for seabed natural gas hydrate |
-
2013
- 2013-06-25 CN CN2013203666693U patent/CN203335050U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234680A (en) * | 2014-09-12 | 2014-12-24 | 哈尔滨工程大学 | Rapid thermal activation exploitation method for natural gas hydrate |
| CN104234680B (en) * | 2014-09-12 | 2016-09-14 | 哈尔滨工程大学 | Gas hydrates Rapid Thermal excites recovery method |
| CN104763998A (en) * | 2015-03-11 | 2015-07-08 | 中国石油大学(华东) | Two-stage afterheat recovering type split steam generating device |
| CN104763998B (en) * | 2015-03-11 | 2016-07-06 | 中国石油大学(华东) | The split type steam raising plant of waste heat two-stage reclaiming type |
| CN105134152A (en) * | 2015-08-24 | 2015-12-09 | 中国石油大学(北京) | Method and system for extracting natural gas hydrate through thermal jet flow |
| CN105134152B (en) * | 2015-08-24 | 2018-02-09 | 中国石油大学(北京) | A kind of method and system using heating power jet exploitation of gas hydrate |
| CN105735958A (en) * | 2016-04-27 | 2016-07-06 | 阳泉市应用技术研究所 | Method and system for increasing coal bed gas permeability based on water vapor injection |
| CN107654219A (en) * | 2017-11-03 | 2018-02-02 | 西南石油大学 | A kind of steam soak method exploitation of gas hydrate system and technique |
| CN113294125A (en) * | 2021-04-26 | 2021-08-24 | 西南石油大学 | Gas lift exploitation device for seabed natural gas hydrate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140625 |
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| EXPY | Termination of patent right or utility model |