CN1730627A - Generation simulator for natural gas hydrates - Google Patents

Generation simulator for natural gas hydrates Download PDF

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Publication number
CN1730627A
CN1730627A CN 200510044341 CN200510044341A CN1730627A CN 1730627 A CN1730627 A CN 1730627A CN 200510044341 CN200510044341 CN 200510044341 CN 200510044341 A CN200510044341 A CN 200510044341A CN 1730627 A CN1730627 A CN 1730627A
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China
Prior art keywords
natural gas
cylinder
pressure
cryogenic
control room
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CN 200510044341
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Chinese (zh)
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CN1318552C (en
Inventor
许淑梅
曹志敏
张晓东
于新生
安伟
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Ocean University of China
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Ocean University of China
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Publication of CN1318552C publication Critical patent/CN1318552C/en
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Abstract

The invention discloses a generation simulator for natural gas hydrates, which comprises a reaction collection vessel equipped with a stirring impeller and a port of natural gas intake pipes, the collection vessel is covered by a heavy pressure low temperature environment control chamber, the natural gas intake pipe arranged in the chamber is provided with a non-return valve, the wall of the chamber is provided with a constant-pressure overflow valve. The reaction collection vessel is provided with a constant-pressure piston for balancing the working pressure in the vessel.

Description

Generation simulator for natural gas hydrates
Technical field
The present invention relates to simulate the improvement of the build environment experimental technique equipment of deep-sea gas hydrate, specifically is the device that a kind of gas hydrate simulation generates, and it belongs to gas hydrate modelling technique field.
Background technology
Gas hydrate (gas hydrate) are a kind of white crystalline solid materials, and outer image ice has extremely strong combustion force, can be used as equal energy source, are commonly called as to be " combustible ice ".Jue Dabufen gas hydrate are distributed in the ocean in the world, are stored in the marine bottom sediment of deep water, and having only extremely, the gas hydrate of minority are to be distributed in freezing land throughout the year.The stock number of gas hydrate is more than 100 times of land in the world ocean.Up to the present, there is the Gulfian of Atlantic Oceanic Region in the main range of distribution of the sea bed gas hydrate of having found in the world, the Caribbean Sea, east, South America continental margin, the Bu Laike tableland of the western continental margin in Africa and U.S.'s east off coast etc., the Bering Sea of Western Pacific, the Sea of Okhotsk, in the island trench, the Sea of Japan, four countries' trough, Japan's South Sea trough, Okinawa trough, the south China sea, the northern marine site of Sulawesi Sea and New Zealand etc., Sino-U.S.'s trough in marine site, Eastern Pacific, the offshore, California, Peru's trough etc., Oman bay of the Indian Ocean, the Ross Sea in the South Pole and Weddell Sea, the Branchian Sea of the arctic and Beaufort, and intracontinental Black Sea and the Caspian Sea etc.China most promising gas hydrate storage area may be the deep water seabed in the South Sea and the East Sea.
Gas hydrate are made of water molecules and combustion gas molecule, and skin is the water molecules screen work, and core is the combustion gas molecule.This solid hydrate can only be present under certain temperature and pressure condition, in case temperature raises or pressure reduces, methane gas then can be overflowed, and solid hydrate just is tending towards disintegration, and at present, human research to hydrate still is in the laboratory simulation stage.Carry out the simulation of gas hydrate and need satisfy two conditions: 1 high pressure, generally under the pressure of 3-5MPa, can generate, formation speed is accelerated with the increase of pressure.2 low temperature, the generation temperature of general gas hydrate is about 0 degree.The simulation experiment study of gas water and thing all is confined to carry out in pure water or seawater at present, build environment that can not the realistic simulation gas hydrate is a marine bottom sediment, test the out of contior problem of each component ratio, the safety problem that unclean problem in the experimentation and Sweet natural gas (methane gas) are overflowed and brought.Therefore can not well reproduce the true generation of gas water and thing and store up process.
Summary of the invention
The objective of the invention is to, a kind of build environment of realistic simulation gas hydrate is provided, be i.e. the generation simulator for natural gas hydrates of thalassogenic sedimentation substance environment.This device can solve experiment each component ratio out of contior problem, the safety problem that unclean problem in the experimentation and Sweet natural gas (methane gas) are overflowed and brought, reproduce gas hydrate true generation, store up and handling process.
Task of the present invention is finished by following technical scheme, has developed a kind of generation simulator for natural gas hydrates, and it comprises that the reaction that is provided with paddle wheel and Sweet natural gas input tube road junction preserves cylinder.Preserve the cylinder periphery at this and go back the enclosure high pressure and cryogenic environmental control room are arranged, be provided with vacuum breaker on the Sweet natural gas input channel that is provided with in this chamber, the wall of this chamber is provided with the constant voltage surplus valve.
Cylinder is preserved in described reaction, also is provided with the constant voltage piston in its cylinder, and this piston is imported after into this preserves in the cylinder at Sweet natural gas, and this preserves operating pressure in the cylinder and does to increase this and preserve moving of cylinder internal volume for balance.
Described high pressure and cryogenic environmental control room, it also is provided with the insulation interlayer in this watch-keeping cubicle except the cryogenic refrigerator of control being set respectively and making the pressure exerting device of this watch-keeping cubicle hyperbaric environment.
Described high pressure and cryogenic environmental control room, it is consistent with high pressure and cryogenic environment in cylinder is preserved in reaction, has working pressure range: 0.5-20MPa equally, operating temperature range-10-20 ℃.
The invention has the advantages that: because the generation simulator for natural gas hydrates of development, it comprises that the reaction that is provided with paddle wheel and Sweet natural gas input tube road junction preserves cylinder; Preserve the cylinder periphery at this and go back the enclosure high pressure and cryogenic environmental control room are arranged, be provided with vacuum breaker on the Sweet natural gas input channel that is provided with in this chamber, the wall of this chamber is provided with the constant voltage surplus valve.Cylinder is preserved in described reaction, also is provided with the constant voltage piston in its cylinder, and this piston is imported after into this preserves in the cylinder at Sweet natural gas, and this preserves operating pressure in the cylinder and does to increase this and preserve moving of cylinder internal volume for balance; Make this device can realize the preparation work of gas hydrate in settling, wherein principal feature is to have adopted in high pressure vessel to place one and preserve cylinder, utilize piston preserving cylinder and environmental control room is kept apart, and pressure can be consistent.So just having avoided that experiment material Sweet natural gas (methane gas) is directly entered environmental control room causes this environmental control room pressure to increase to the environmental control room inflation under the constant temperature and pressure condition, and be to keep the environmental control room constant pressure, the constant voltage surplus valve that must be provided with by the wall of this chamber in this environmental control room and a part of solution is discharged.Because Sweet natural gas (methane gas) and settling and seawater all are enclosed in and preserve in the cylinder, they not can because of experiment material Sweet natural gas (methane gas) directly enter environmental control room, and inside this environmental control room, discharge.Owing to be provided with the vacuum breaker on the Sweet natural gas input channel in environmental control room, just can avoid the backflow of gas and seawater, and the piston that can only promote to preserve in the cylinder move, thereby avoided methane, seawater and sedimental loss.Owing to preserve cylinder is to adopt the transparent organic glass material to make, and makes things convenient for detection system that it is carried out the detection of acoustics, optics, electromagnetism etc. in experimentation.Be marked with scale preserving cylinder again, can observe easily and preserve the position that the piston in the cylinder moves, can calculate according to piston moving location and to preserve the methane number that charges in the cylinder, thereby control its water, Sweet natural gas and sedimental ratio, and can also be in gas water and thing generative process by the variation of volume generation in the mobile observation gas hydrate generative process of piston position, so just avoided this to preserve the out of contior problem of each component ratio in the cylinder, the safety problem of also having avoided cleaning in the experimentation and Sweet natural gas (methane gas) to overflow and bring.
Accompanying drawing and embodiment thereof
The embodiments of the invention accompanying drawings is as follows:
The synoptic diagram of Fig. 1 generation simulator for natural gas hydrates.
Referring to a kind of generation simulator for natural gas hydrates that Fig. 1 makes, it comprise be provided with paddle wheel 10 and big right gas input tube road junction 9 ' reaction preserve cylinder 4.Preserve cylinder 4 peripheries at this and go back the enclosure high pressure and cryogenic environmental control room 3 are arranged, be provided with vacuum breaker 7 on the Sweet natural gas input channel 9 that is provided with in this chamber 3, the pressure of this chamber 3 is by pressure exerting device 2 controls, and its pipeline that links to each other is provided with constant voltage surplus valve 6.
Cylinder 4 is preserved in described reaction, also is provided with constant voltage piston 11 in its cylinder, and this piston 11 is imported after into this preserves in the cylinder 4 and can outwards be moved at Sweet natural gas, and this that causes owing to Sweet natural gas increases with balance preserves that operating pressure become greatly in the cylinder 4.
Described high pressure and cryogenic environmental control room 3, it also is provided with the insulation interlayer 5 of this environmental control room 3 except the cryogenic refrigerator 12 of control being set respectively and making the pressure exerting device 2 of these watch-keeping cubicle 3 hyperbaric environments.
Described high pressure and cryogenic environmental control room 3, it is consistent with high pressure and cryogenic environment in cylinder 4 is preserved in reaction, has working pressure range: 0.5-20MPa equally, operating temperature range-10-20 ℃.
Those of ordinary skill in the art can understand, and in protection scope of the present invention, makes amendment for the foregoing description, and it all is possible adding and replacing, and it does not all exceed protection scope of the present invention.

Claims (4)

1, a kind of generation simulator for natural gas hydrates, it comprises that the reaction that is provided with paddle wheel and Sweet natural gas input tube road junction preserves cylinder, it is characterized in that: preserve the cylinder periphery at this and go back the enclosure high pressure and cryogenic environmental control room are arranged, be provided with vacuum breaker on the Sweet natural gas input channel of this chamber setting, the wall of this chamber is provided with the constant voltage surplus valve.
2, according to the described generation simulator for natural gas hydrates of claim 1, it is characterized in that: cylinder is preserved in described reaction, also be provided with the constant voltage piston in its cylinder, this piston is imported after into this preserves in the cylinder at Sweet natural gas, and this preserves operating pressure in the cylinder and does to increase this and preserve moving of cylinder internal volume for balance.
3, according to the described generation simulator for natural gas hydrates of claim 1, it is characterized in that: described high pressure and cryogenic environmental control room, it also is provided with the insulation interlayer in this watch-keeping cubicle except the cryogenic refrigerator of control being set respectively and making the pressure exerting device of this watch-keeping cubicle hyperbaric environment.
4, according to claim 1 or 2 or 3 described generation simulator for natural gas hydrates, it is characterized in that: described high pressure and cryogenic environmental control room, it is consistent with high pressure and cryogenic environment in cylinder is preserved in reaction, has working pressure range: 0.5-20MPa equally, operating temperature range-10-20 ℃.
CNB200510044341XA 2005-08-02 2005-08-02 Generation simulator for natural gas hydrates Expired - Fee Related CN1318552C (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CNB200510044341XA CN1318552C (en) 2005-08-02 2005-08-02 Generation simulator for natural gas hydrates

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CN1318552C CN1318552C (en) 2007-05-30

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101042387B (en) * 2007-04-23 2010-07-14 中国科学院广州能源研究所 Gas hydrate kinetics measuring method and apparatus thereof
CN101055276B (en) * 2007-02-14 2011-08-24 中国科学院广州能源研究所 Natural gas hydrate phase balance emulation experiment device
CN101451985B (en) * 2008-12-24 2013-01-23 大连理工大学 Detection device for synthesizing and decomposing gas hydrate
CN102927269A (en) * 2012-10-26 2013-02-13 哈尔滨工程大学 Volumetric capacity-variable constant-pressure maintenance device of pressure vessel
CN104237454A (en) * 2013-06-18 2014-12-24 中国石油天然气股份有限公司 Natural gas pipeline hydrate simulated generation test method and device
CN104634635A (en) * 2015-02-12 2015-05-20 中国海洋石油总公司 Device and method for generating high-saturation methane hydrate sediment sample
CN105169996A (en) * 2015-10-12 2015-12-23 西南石油大学 Pressure regulation tank used for natural gas hydrate experiments

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001010990A (en) * 1999-06-30 2001-01-16 Mitsui Eng & Shipbuild Co Ltd Device for producing methane hydrate and method for producing the same
JP2003082372A (en) * 2001-09-10 2003-03-19 Mitsubishi Heavy Ind Ltd Method for forming gas hydrate, and simulation apparatus and simulation system for forming gas hydrate
CN2811299Y (en) * 2005-08-02 2006-08-30 中国海洋大学 Simulated generator for gas hydrate

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101055276B (en) * 2007-02-14 2011-08-24 中国科学院广州能源研究所 Natural gas hydrate phase balance emulation experiment device
CN101042387B (en) * 2007-04-23 2010-07-14 中国科学院广州能源研究所 Gas hydrate kinetics measuring method and apparatus thereof
CN101451985B (en) * 2008-12-24 2013-01-23 大连理工大学 Detection device for synthesizing and decomposing gas hydrate
CN102927269A (en) * 2012-10-26 2013-02-13 哈尔滨工程大学 Volumetric capacity-variable constant-pressure maintenance device of pressure vessel
CN104237454A (en) * 2013-06-18 2014-12-24 中国石油天然气股份有限公司 Natural gas pipeline hydrate simulated generation test method and device
CN104237454B (en) * 2013-06-18 2016-09-07 中国石油天然气股份有限公司 The simulation of natural gas line hydrate generates method of testing and device
CN104634635A (en) * 2015-02-12 2015-05-20 中国海洋石油总公司 Device and method for generating high-saturation methane hydrate sediment sample
CN105169996A (en) * 2015-10-12 2015-12-23 西南石油大学 Pressure regulation tank used for natural gas hydrate experiments

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