CN103992829A - Natural gas hydrate preparation system based on compressed gas refrigeration cycle - Google Patents
Natural gas hydrate preparation system based on compressed gas refrigeration cycle Download PDFInfo
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- CN103992829A CN103992829A CN201410206114.1A CN201410206114A CN103992829A CN 103992829 A CN103992829 A CN 103992829A CN 201410206114 A CN201410206114 A CN 201410206114A CN 103992829 A CN103992829 A CN 103992829A
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Abstract
The invention provides a natural gas hydrate preparation system based on compressed gas refrigeration cycle, which is characterized by comprising a gas supply unit for supplying natural gas required by hydration reaction, a refrigeration cycle device which is communicated with the gas supply unit and used for cooling the natural gas and driving the natural gas to flow, and a natural gas hydrate preparation device which is connected with the refrigeration cycle device and used for preparing and storing the natural gas hydrate, wherein the refrigeration cycle device comprises a dryer, a compressor, a cooler and an expander; the inlet end of the dryer is communicated with the outlet end of the gas supply unit, and the dryer is used for drying the natural gas; the inlet end of the compressor is communicated with the outlet end of the dryer, and the compressor is used for sucking the natural gas and compressing the natural gas; the inlet end of the cooler is communicated with the outlet end of the compressor, and the cooler is used for cooling the natural gas; and the inlet end of the expander is communicated with the outlet end of the cooler, the outlet end of the expander is communicated with the natural gas hydrate preparation device, and the expander is used for expanding the natural gas to obtain low-temperature natural gas and sending the low-temperature natural gas into the natural gas hydrate preparation device. The compressor is connected with the expander through a coupling, and can recover expansion work to enhance the work applying efficiency of the system.
Description
Technical field
The present invention relates to the preparation system of gas hydrate, be specifically related to a kind of gas hydrate preparation system that adopts pressurized gas refrigeration cycle.
Background technology
In recent years, both at home and abroad the research of gas hydrate is shown, the solid-state transport of carrying out Sweet natural gas with hydrate has good DEVELOPMENT PROSPECT.This is mainly reflected in: 1. energy storage density is large, it is reported, and 1m
3gas hydrate (NGH) portability standard state under 150~180m
3sweet natural gas; 2. technology of preparing is simple, and NGH can be below 6MPa, be prepared the link of having avoided very low temperature to prepare compared with natural gas liquids (LNG) under-10~10 DEG C of conditions; 3. the thermophysical property of hydrate is more stable, storage safe, and experiment finds, NGH is at normal pressure ,-1~-18 DEG C time, can stably store and can not decompose; 4. can effectively carry out regasifying of NGH, have two kinds of methods can make decomposition of hydrate: 1. step-down makes its pressure lower than vapor pressure at certain temperature, 2. under certain pressure, heat up and make its temperature higher than Phase Equilibrium Temperature; 5.NGH is easy to carry, and makes NGH be particularly useful for there is no oil-gas field and the offshore oil and gas field of gas pipe line, and is not suitable for economically building the small-sized gas field of gas pipe line; The cost of investment of 6.NGH is lower than LNG, and nineteen ninety-five, the people such as the Gudmundsson of Norway have carried out comparative study to the cost of NGH and LNG form transport natural gas, finds to adopt NGH technology than adopting the gross investment of LNG technology and reduces 26%.Therefore, Chinese scholars generally believes, NGH storaging and transport technology likely substitutes LNG technology becomes one of extensive accumulating means of following Sweet natural gas.
Pressurized gas refrigerator is taking gas as working medium, and its working process comprises isoentropic compression, isobaric cooling, isentropic expansion and isobaric heat absorption Four processes, and its feature is that gas working medium does not collect state and changes in working cycle.Pressurized gas refrigeration cycle technology is ripe and be used widely in aircraft air condition, cryogenic refrigeration field.In gas hydrate storaging and transport technology field, the technology of preparing of gas hydrate is increasingly mature, and bubbling style hydrate strengthening growing technology has very strong practical.In this case, exploitation adopts the gas hydrate continuous preparation device of pressurized gas refrigeration cycle and bubbling style hydrate strengthening growing technology to have very strong technical and economic feasibility and necessity.
Chinese patent CN101358685 is first full of water by the tubular type laminate structure storage tank that is provided with cooling cycle system, then pass into gas to 0.1MPa left and right, discharge unnecessary water, pass into gas pressurization to pressure 5~6MPa, by cooling system control temperature at 0~4 DEG C, gas is contacted with the water in storage tank interior conduit, under static conditions, generate NGH, then cooling, step-down, be chilled to-15~-20 DEG C, sealed storage.NGH storage tank is placed on NGH accumulating automobile (train) tank car that attemperator is installed, NGH is transported to behind point of destination through automobile (train), from outside cooling cycle system, directly pass into temperature higher than the water of 15 DEG C, NGH gasifies very soon; After NGH gasification, remaining water reclaims or recycling.It is slow that the method generates the speed of hydrate under static systems, and cooling cycle system is housed on storage tank, certainly will increase transportation cost.
Japanese Patent JP2005263825A discloses a kind of jetting type hydrate production process and equipment, and liquid is sprayed by ejector through high-pressure pump, sucks Sweet natural gas simultaneously, sprays and enters in reactor, synthetic NGH under the disturbance of whipping appts in reactor after mixing.The method has increased mechanical stirring, inevitably produces heat effect, affects maintaining of the actual formation condition of NGH, and mechanical stirring increases the energy consumption of preparation process, raising preparation cost.
Chinese invention patent 97190182.1 has disclosed a kind of bubble method of perturbation and mechanical mixing method in conjunction with the method for preparing NGH, gas impacts water from container bottom through nozzle ejection and forms bubble disturbance, be arranged on the agitator in container by driven by motor, increase the contact area of gas and water, accelerate the generation of NGH.Aforesaid method still needs to use mechanical stirring, has increased the energy consumption in production process; And the method use water coolant refrigeration, need optional equipment chilled water unit.
Deficiency in above-mentioned NGH synthetic technology has greatly hindered its application on Sweet natural gas storaging and transport technology.Domestic NGH synthetic technology is also very immature, also has many technical problems to research and solve, and makes it cannot commercial applications.
Summary of the invention
The present invention be directed to that above-mentioned problem carries out, it is a kind of simple in structure that object is to provide, without the gas hydrate preparation system that is equipped with special machinery whipping appts and special refrigeration plant.
The present invention for achieving the above object, has adopted following technical scheme:
The invention provides a kind of gas hydrate preparation system based on pressurized gas refrigeration cycle, it is characterized in that, comprising: air feeder, for hydration reaction provides required Sweet natural gas; Refrigerating circulatory device, is connected with air feeder, to Sweet natural gas carry out cooling and drive Sweet natural gas flow; And gas hydrate preparation facilities, be connected with refrigerating circulatory device, for the preparation of, storing natural gas hydrate.
Wherein, refrigerating circulatory device comprises: inlet end is connected with the exit end of air feeder, and Sweet natural gas is carried out to dry moisture eliminator; Inlet end is connected with the exit end of moisture eliminator, for aspirating Sweet natural gas, and the compressor that Sweet natural gas is compressed; Inlet end is connected with the exit end of compressor, makes the water cooler of Sweet natural gas cooling; And inlet end is connected with the exit end of water cooler, exit end is connected with gas hydrate preparation facilities, obtains cryogenic natural gas, and this cryogenic natural gas is sent into the decompressor of gas hydrate preparation facilities by Sweet natural gas is expanded.
Gas hydrate preparation facilities comprises: for hydration reaction provides the water unit of required water; Be connected with the exit end of this water unit and the exit end of decompressor, generate the bubbling style hydrate reaction still of gas hydrate for making natural G&W carry out hydration reaction; The recycle pump that inlet end is connected with this bubbling style hydrate reaction still; And the hydrate holder being connected with the exit end of recycle pump, bubbling style hydrate reaction still has body; Be positioned at body bottom, the air flow inlet being connected with the exit end of decompressor; Be positioned at bodies top, be connected with the inlet end of moisture eliminator, for discharging the air stream outlet of the remaining Sweet natural gas of hydration reaction; Be positioned at the below, side of body, the first water inlet being connected with the exit end of water pump; Be positioned at the below, side of body, the second water inlet being connected with hydrate holder; Be positioned at the top, side of body, the hydrate being connected with the inlet end of recycle pump outlet; And be arranged on the bottom of body, and be positioned at the top of air flow inlet, for the orifice plate of mean air flow.Hydrate holder separates gas hydrate with the natural G&W of carrying secretly, and for storing the gas hydrate after separation, has the porous sieve plate main body of multilayer; Be positioned at main body top, be connected with the inlet end of moisture eliminator, for discharging the air outlet of isolated Sweet natural gas; Be positioned at the top, side of main body, the hydrate entrance being connected with the exit end of recycle pump; And be positioned at below the side of main body, be connected with the second water inlet of bubbling style hydrate reaction still, isolated water is imported to the water outlet of hydrate reaction still.
Further, gas hydrate preparation system based on pressurized gas refrigeration cycle involved in the present invention, also has such feature: shaft coupling, is connected compressor with decompressor, the merit producing for reclaiming the expansion of decompressor Sweet natural gas, and merit is passed to compressor.
Effect and the effect of invention
Gas hydrate preparation system based on pressurized gas refrigeration cycle involved in the present invention, because adopt compressor to drive Sweet natural gas repeatedly to pass through bubbling style hydrate reaction still, adopt bubbling style hydrate reaction still to prepare gas hydrate, and the air-flow of the average Sweet natural gas of orifice plate is set, natural G&W is fully contacted, the formation speed that therefore can effectively increase gas hydrate, makes hydration reaction more thorough, without being equipped with in addition special mechanical disturbance device.
In addition, because adopt water cooler and decompressor to make to enter bubbling style hydrate reaction still after Sweet natural gas decrease temperature and pressure, the Sweet natural gas of low temperature can be lowered the temperature and absorb hydration reaction heat bubbling style hydrate reaction still, therefore this preparation system is without being equipped with in addition special refrigeration plant, unnecessary Sweet natural gas is siphoned away by compressor and is mixed with the fresh Sweet natural gas supplementing, increasing temperature and pressure again, then after water cooler and decompressor decrease temperature and pressure, again enter bubbling style hydrate reaction still and carry out hydration reaction, realize the continuous production of gas hydrate.
This gas hydrate preparation system can be for rapidly, continuously, prepare in large quantities gas hydrate, and without being equipped with in addition special refrigeration plant and special mechanical disturbance device, simple in structure, cost is low, has good engineering applicability.
Brief description of the drawings
Fig. 1 is the structured flowchart of gas hydrate preparation system; With
Fig. 2 is the structural representation of gas hydrate preparation system.
Embodiment
Below in conjunction with accompanying drawing, the gas hydrate preparation system based on pressurized gas refrigeration cycle involved in the present invention is elaborated.
Embodiment
Fig. 1 is the structured flowchart of gas hydrate preparation system.
As shown in Figure 1, gas hydrate preparation system 10 comprises air feeder 11, refrigerating circulatory device 12 and gas hydrate preparation facilities 13.
Fig. 2 is the structural representation of gas hydrate preparation system.
Air feeder 11 is used to hydration reaction that required Sweet natural gas is provided.As shown in Figure 2, air feeder 11 comprises natural gas steel cylinder 14 and valve 15.Valve 15 is connected with the air outlet of natural gas steel cylinder 14.
Refrigerating circulatory device 12 is cooling for Sweet natural gas is carried out, and drives flowing of Sweet natural gas.As shown in Figure 1, 2, refrigerating circulatory device 12 comprises moisture eliminator 16, compressor 17, water cooler 18 and decompressor 19.
The inlet end of moisture eliminator 16 is connected with valve 15, and exit end is connected with the inlet end of compressor 17.The exit end of compressor 17 is connected with the inlet end of water cooler 18.The exit end of water cooler 18 is connected with the inlet end of decompressor 19.The exit end of decompressor 19 is connected with gas hydrate preparation facilities 13.
Between compressor 17 and decompressor 19, shaft coupling 20 is installed, the merit producing for reclaiming decompressor 19 Sweet natural gases expansions, and pass to compressor 17, for compressor 17 provides energy.
Gas hydrate preparation facilities 13 is for making natural G&W generation hydration reaction prepare gas hydrate.As shown in Figure 1, 2, gas hydrate preparation facilities 13 comprises water unit 21, bubbling style hydrate reaction still 22, recycle pump 23 and hydrate holder 24.
Water unit 21, for providing hydration reaction required water, comprises tank 25 and water pump 26, and water pump 26 is connected with bubbling style hydrate reaction still 22 with tank 25 respectively, by the water suction bubbling style hydrate reaction still 22 in tank 25.
Bubbling style hydrate reaction still 22, for the preparation of gas hydrate, comprises body 27, air flow inlet 28, air stream outlet 29, the first water inlet 30, the second water inlet 31, hydrate outlet 32 and orifice plate 33.Air flow inlet 28 is positioned at the bottom of body 27, is connected with the exit end of decompressor 19.Air stream outlet 29 is positioned at the top of body 27, is connected with the inlet end of moisture eliminator 16.The first water inlet 30 is positioned at the below, side of body 27, is connected with water pump 26.The second water inlet 31 is also positioned at the below, side of body 27, is connected with hydrate holder 24.Hydrate outlet 32 is positioned at the top, side of body 27, is connected with the inlet end of recycle pump 23.Orifice plate 33 is arranged on the bottom of body 27, is positioned at the top of air flow inlet 28.
Recycle pump 23 enters hydrate holder 24 for the gas hydrate slurry suction that bubbling style hydrate reaction still 22 is generated.The inlet end of recycle pump 23 is connected with bubbling style hydrate reaction still outlet 32, and exit end is connected with hydrate holder 24.
Hydrate holder 24 dewaters (through water outlet 37) and degassed (through air outlet 36) for the gas hydrate slurry that bubbling style hydrate reaction still 22 is generated, and makes it become dry hydrate and be stored on the porous sieve plate of multilayer.Hydrate holder 24 has main body 34, hydrate entrance 35, air outlet 36 and water outlet 37.Hydrate entrance 35 is positioned at the top, side of main body 34, is connected with the exit end of recycle pump 23.Air outlet 36 is positioned at the top of main body 34, is connected with the inlet end of moisture eliminator 16.Water outlet 37 is positioned at the below, side of main body 34, is connected with the second water inlet 31 of bubbling style hydrate reaction still 22.
In the working process of gas hydrate preparation system 10, first operator opens water pump 26, the water in suction tank 25, and the water in tank 25 enters bubbling style hydrate reaction still 22 by the first water inlet 30.Open compressor 17 and decompressor 19, open valve 15, make the Sweet natural gas in natural gas steel cylinder 14 enter moisture eliminator 16, after natural gas via is dry, enter compressor 17, in compressor 17, be compressed into high temperature and high pressure gas, the Sweet natural gas of High Temperature High Pressure enters water cooler 18, be cooled into the Sweet natural gas of cryogenic high pressure, then enter decompressor 19, the Sweet natural gas of cryogenic high pressure expands and becomes low-temp low-pressure gas in decompressor 19, then enter bubbling style hydrate reaction still 22, make the water temperature in bubbling style hydrate reaction still 22 remain on 0~3 DEG C, pressure remains on 3~5MPa.Shaft coupling 20 reclaims the merit that in decompressor 19, Sweet natural gas expansion produces, and passes to compressor 17, drives compressor 17 to do work, and therefore can improve the mechanical efficiency of gas hydrate preparation system 10.
The natural gas via air flow inlet 28 of low-temp low-pressure enters bubbling style hydrate reaction still 22, wherein a part of cryogenic natural gas heat absorption heats up, water temp in bubbling style hydrate reaction still 22 is reduced, the Sweet natural gas of another part low temperature mixes and just can generate gas hydrate slurry mutually with the water after cooling, hydration reaction heat is absorbed by cryogenic natural gas and cryogenic natural gas is heated up, orifice plate 33 is more on average stablized the gas flow flowing into from air flow inlet 28, thereby Sweet natural gas is fully contacted with the water in bubbling style hydrate reaction still 22, improve the generating rate of hydrate.The Sweet natural gas that has neither part nor lot in hydration reaction flows out from the air stream outlet 29 at bubbling style hydrate reaction still 22 tops, mix with Sweet natural gas and the isolated Sweet natural gas of hydrate holder 24 supplementary from natural gas steel cylinder 14, enter moisture eliminator 16, then enter successively compressor 17, water cooler 18 and decompressor 19, after again becoming low-temp low-pressure gas, enter bubbling style hydrate reaction still 22 by air flow inlet 28 and orifice plate 33, thereby realize the continuous production of gas hydrate.
The gas hydrate slurry generating in bubbling style hydrate reaction still 22 floats over the upper strata of working solution, adopts recycle pump 23 that gas hydrate slurry is extracted out from hydrate outlet 32, enters hydrate holder 24 by hydrate entrance 35.The main body 34 of hydrate holder 24 is porous sieve plate structures of multilayer, gas hydrate slurry enters after hydrate holder 24, the Sweet natural gas of wherein carrying secretly, under the suction function of compressor 17, flows out and enters moisture eliminator 16 from air outlet 36, carries out cycling and reutilization; Water in gas hydrate slurry, by sieve plate filtering, flows out from water outlet 37, and flows into bubbling style hydrate reaction still 22 by the second water inlet 31, carries out cycling and reutilization; Solid-state gas hydrate are stored on the sieve plate of multilayer.
The effect of embodiment and effect
The gas hydrate preparation system based on pressurized gas refrigeration cycle that the present embodiment is related, adopt compressor 17 to drive Sweet natural gas repeatedly to pass through the liquid water in bubbling style hydrate reaction still 22, and in bubbling style hydrate reaction still 22 bottoms, the orifice plate 33 for mean air flow is installed, Sweet natural gas is fully contacted with water, with recycle pump 23 by generate gas hydrate slurry extract out, therefore, in bubbling style gas hydrate reactor 22, can generate continuously, rapidly gas hydrate, without being equipped with mechanical disturbance equipment.
In addition, because adopt compressor 17, water cooler 18 and decompressor 19 to make Sweet natural gas decrease temperature and pressure, the Sweet natural gas of low temperature enters after bubbling style hydrate reaction still 22, can absorb hydration reaction heat, and the water in bubbling style hydrate reaction still 22 is lowered the temperature, therefore.In bubbling style hydrate reaction still 22, can generate continuously gas hydrate, without being equipped with refrigeration plant.
In addition, in bubbling style hydrate reaction still 22, have neither part nor lot in the Sweet natural gas of hydration reaction, all be pumped to refrigerating circulatory device 12 by compressor 17 with the Sweet natural gas separating in hydrate holder 24 from gas hydrate slurry, after the Sweet natural gas of formation low-temp low-pressure, again enter in bubbling style hydrate reaction still 22 and participate in hydration reaction, therefore, refrigerating circulatory device 12 has been realized the not cycling and reutilization of hydration Sweet natural gas.
Shaft coupling 20 can reclaim the merit that in decompressor 19, Sweet natural gas expansion produces, and merit is passed to compressor 17, drives compressor 17 to do work, and therefore can improve the workmanship efficiency of this gas hydrate preparation system.
Certainly; gas hydrate preparation system based on pressurized gas refrigeration cycle involved in the present invention is not merely defined in the structure described in above embodiment; these are only the basic explanation of the present invention under conceiving; and any equivalent transformation that technical scheme according to the present invention is done all should belong to protection scope of the present invention.
Claims (2)
1. the gas hydrate preparation system based on pressurized gas refrigeration cycle, is characterized in that, comprising:
Air feeder, for hydration reaction provides required Sweet natural gas;
Refrigerating circulatory device, is connected with described air feeder, to described Sweet natural gas carry out cooling and drive described Sweet natural gas flow; And
Gas hydrate preparation facilities, is connected with described refrigeration plant, for the preparation of, storing natural gas hydrate,
Wherein, described refrigerating circulatory device comprises: inlet end is connected with the exit end of described air feeder, and described Sweet natural gas is carried out to dry moisture eliminator; Inlet end is connected with the exit end of described moisture eliminator, for aspirating described Sweet natural gas, and the compressor that described Sweet natural gas is compressed; Inlet end is connected with the exit end of described compressor, makes the water cooler of described Sweet natural gas cooling; And inlet end is connected with the exit end of described water cooler, exit end is connected with described gas hydrate preparation facilities, obtain cryogenic natural gas by described Sweet natural gas is expanded, and this cryogenic natural gas is sent into the decompressor of described gas hydrate preparation facilities
Described gas hydrate preparation facilities comprises: for described hydration reaction provides the water unit of required water; Be connected with the exit end of this water unit and the exit end of described decompressor, generate the bubbling style hydrate reaction still of described gas hydrate for making described Sweet natural gas and described water carry out described hydration reaction; The recycle pump that inlet end is connected with this bubbling style hydrate reaction still; And the hydrate holder being connected with the exit end of described recycle pump,
Described bubbling style hydrate reaction still has stainless body; Be positioned at described body bottom, the air flow inlet being connected with the described exit end of described decompressor; Be positioned at described bodies top, be connected with the described inlet end of described moisture eliminator, for discharging the air stream outlet of the remaining Sweet natural gas of described hydration reaction; Be positioned at the below, side of described body, the first water inlet being connected with the described exit end of described water pump; Be positioned at the below, side of described body, the second water inlet being connected with described hydrate holder; Be positioned at the top, side of described body, the hydrate being connected with the described inlet end of described recycle pump outlet; And be arranged on the bottom of described body, and be positioned at the top of described air flow inlet, for the orifice plate of mean air flow,
Described hydrate holder separates described gas hydrate with the natural G&W of carrying secretly, and for storing the gas hydrate after separation, has the sieve plate main body of multilayer; Be positioned at described main body top, be connected with the described inlet end of described moisture eliminator, for discharging the air outlet of isolated described Sweet natural gas; Be positioned at the top, side of described main body, the hydrate entrance being connected with the described exit end of described recycle pump; And be positioned at below the side of described main body, be connected with described second water inlet of described bubbling style hydrate reaction still, isolated described water is imported to the water outlet of described hydrate reaction still.
2. the gas hydrate preparation system based on pressurized gas refrigeration cycle according to claim 1, is characterized in that, also comprises:
Shaft coupling, is connected described compressor with described decompressor, the merit producing for reclaiming the expansion of Sweet natural gas described in described decompressor, and described merit is passed to described compressor.
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Cited By (8)
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CN105169995A (en) * | 2015-10-12 | 2015-12-23 | 西南石油大学 | Blending tank for natural gas hydrate experiments and method for storing natural gas hydrate |
CN105331411A (en) * | 2015-11-23 | 2016-02-17 | 北京建筑大学 | Energy-saving and rapid synthesis device and method of natural gas hydrate |
CN106190383A (en) * | 2016-07-25 | 2016-12-07 | 北京建筑大学 | The synthesizer of gas hydrates and method |
CN108160003A (en) * | 2017-12-08 | 2018-06-15 | 中国科学院广州能源研究所 | A kind of quick equipment for continuously preparing gas hydrate |
CN109764238A (en) * | 2019-01-25 | 2019-05-17 | 大连理工大学 | A kind of natural gas storing-transport-based on Hydrate Technology utilizes integrated apparatus |
CN110844867A (en) * | 2019-11-20 | 2020-02-28 | 常州大学 | Production filling system of carbon dioxide hydrate fire extinguisher |
CN112034133A (en) * | 2020-08-06 | 2020-12-04 | 中国科学院广州能源研究所 | Device and method for accelerating generation of natural gas hydrate by using dissolved gas method |
CN114484646A (en) * | 2022-02-11 | 2022-05-13 | 中南大学 | Refrigeration and cold accumulation system using hydrate slurry as working medium |
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CN105169995A (en) * | 2015-10-12 | 2015-12-23 | 西南石油大学 | Blending tank for natural gas hydrate experiments and method for storing natural gas hydrate |
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CN105331411B (en) * | 2015-11-23 | 2018-01-05 | 北京建筑大学 | A kind of Fast back-projection algorithm device and method of energy-saving gas hydrates |
CN106190383A (en) * | 2016-07-25 | 2016-12-07 | 北京建筑大学 | The synthesizer of gas hydrates and method |
CN108160003A (en) * | 2017-12-08 | 2018-06-15 | 中国科学院广州能源研究所 | A kind of quick equipment for continuously preparing gas hydrate |
CN109764238A (en) * | 2019-01-25 | 2019-05-17 | 大连理工大学 | A kind of natural gas storing-transport-based on Hydrate Technology utilizes integrated apparatus |
CN110844867A (en) * | 2019-11-20 | 2020-02-28 | 常州大学 | Production filling system of carbon dioxide hydrate fire extinguisher |
CN110844867B (en) * | 2019-11-20 | 2021-06-22 | 常州大学 | Production filling system of carbon dioxide hydrate fire extinguisher |
CN112034133A (en) * | 2020-08-06 | 2020-12-04 | 中国科学院广州能源研究所 | Device and method for accelerating generation of natural gas hydrate by using dissolved gas method |
CN112034133B (en) * | 2020-08-06 | 2021-08-03 | 中国科学院广州能源研究所 | Device and method for accelerating generation of natural gas hydrate by using dissolved gas method |
CN114484646A (en) * | 2022-02-11 | 2022-05-13 | 中南大学 | Refrigeration and cold accumulation system using hydrate slurry as working medium |
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Application publication date: 20140820 |