CN107063789A - A kind of electromagnetic induction decomposes the device and method of gas hydrates - Google Patents
A kind of electromagnetic induction decomposes the device and method of gas hydrates Download PDFInfo
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- CN107063789A CN107063789A CN201710027757.3A CN201710027757A CN107063789A CN 107063789 A CN107063789 A CN 107063789A CN 201710027757 A CN201710027757 A CN 201710027757A CN 107063789 A CN107063789 A CN 107063789A
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- temperature
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- gas hydrates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
Abstract
The present invention relates to the device and method that a kind of electromagnetic induction decomposes gas hydrates, including reaction under high pressure system, low-temperature cooling system, the circulatory system, EM induction system, the part of data collecting system five, reaction under high pressure system is by gas cylinder（1）Interior high-pressure natural gas provides pressure condition；Low-temperature cooling system is by constant temperature water tank（5）Composition, pre-processes tank（3）, stainless steel cauldron（4）It is placed in constant temperature water tank, is uniformly heated using water bath with thermostatic control come controlling reaction temperature by the temperature of water in regulating tank during reaction progress；EM induction system provides external condition to decompose gas hydrates；Temperature sensor（12）, pressure transmitter（14）, resistivity detection electrode（13）The data collected are timely fed back to computer（7）In；The circulatory system make it that decomposing obtained natural gas passes through moisture trap（9）Return to recovery gas cylinder（10）In, through booster pump（19）Supercharging again flows into gas cylinder（1）In.
Description
Technical field
The present invention relates to laboratory scientific research apparatus field, more particularly to a kind of electromagnetic induction decomposes the dress of gas hydrates
Put and method.
Background technology
Gas hydrates are a kind of cage type crystalline compounds for the class ice being made up of under certain condition water and natural gas,
It is commonly called as " combustible ice ", solid combustible burns, crystal, which is decomposed, can discharge substantial amounts of natural gas, is considered as the following potential energy.
Gas hydrates methane content accounts for 80%~99.9%, and Air-pollution From Combustion is all more much smaller than coal, oil, natural gas, and reserves are rich
Richness, the global enough mankind of reserves use 1000, thus are considered as by various countries the alternative energy source of following petroleum gas.Therefore, day
The research of right gas hydrate is gradually of interest by people at present.
Due to the specific Temperature-pressure Conditions of gas hydrates, with Temperature-pressure Conditions during exploitation of gas hydrates
Destruction, gas hydrates are extremely easy in decomposition, and the research sampling to gas hydrates causes great difficulty, samples into addition
Synthesized under Ben Taigao, laboratory condition, decomposition gas hydrates are increasingly becoming research tendency.
Current gas hydrate dissociation test research device is concentrated mainly in the methods such as heat injection, decompression, microwave heating,
Not yet there is the device that gas hydrates are decomposed using electromagnetic induction principle.In the device for decomposing gas hydrates at present, note
The hot serious heat utilization efficiency of method decomposer heat waste is relatively low；Voltage drop method decomposer long decomposition efficiency reaction time is low；
Although preferably, equipment is complex, and microwave spoke is also easy to produce under laboratory condition for microwave heating method decomposer discomposing effect
Penetrate；Electromagnetic induction principle decomposes gas hydrates principle simply, less demanding to instrument and equipment, and the thermal efficiency improves a lot.
The content of the invention
For drawbacks described above, it is an object of the invention to provide the device that a kind of electromagnetic induction decomposes gas hydrates,
To solve above-mentioned technical problem of the prior art.
Therefore, the technical solution adopted in the present invention is：A kind of electromagnetic induction decomposes the device of gas hydrates, including
Reaction under high pressure system, low-temperature cooling system, the circulatory system, EM induction system, the part of data collecting system five；The high pressure is anti-
High-pressure natural gas of the system in gas cylinder is answered to provide pressure condition, the buffered bottle pre-part reason tank of high-pressure natural gas is located in advance
Reason, reaction is carried out in closed reactor；The low-temperature cooling system is made up of constant temperature water tank, and pretreatment tank, reactor are put
In constant temperature water tank, by the temperature of water in regulating tank come controlling reaction temperature during reaction progress, using water bath with thermostatic control
Uniformly heat；The EM induction system is made up of induction coil and adjustable large power supply and control system, to divide
Solve gas hydrates and external condition is provided；The data collecting system is detected by temperature sensor, pressure transmitter, resistivity
Electrode, computer composition, the temperature sensor, pressure transmitter, resistivity detection electrode are anti-in time by the data collected
It is fed in computer；The circulatory system make it that decompose obtained natural gas returns in recovery gas cylinder 10 by moisture trap 9,
Again flowed into through the supercharging of booster pump 19 in gas cylinder 1.
Preferably, the temperature sensor is PT100 temperature sensors.
Preferably, the pressure transmitter is CYB-20S pressure transmitters.
Preferably, the reactor is made using the material of stainless steel.
The device of the present invention is realized by the following method electromagnetic induction and decomposes gas hydrates：A kind of electromagnetic induction is decomposed
Natural gas under the conditions of the method for gas hydrates, including the building-up process and electromagnetic induction of porous media gas hydrates
The decomposable process of hydrate；The building-up process of the porous media gas hydrates comprises the following steps：First, according to natural
Gas hydrate forms required high pressure, low temperature geological conditions, and porous media is simulated with the sea sand of different-grain diameter；Secondly, by high pressure
Natural gas in gas cylinder is reduced its pressure by pressure regulator valve, surge tank and obtains more stably pressure to ensure；Again by pre-
Process tank, obtains hyperbaric environment needed for pure high-pressure natural gas into the interior experiment with construction of reactor；Finally, noted using bottom
The mode simulative gas diffusion process of gas, is injected water into reactor, and water inlet is closed after water level set in advance is reached
Mouthful, pretreatment tank, reactor are placed in water bath with thermostatic control to ensure that temperature conditionss needed for experiment meet the requirements, and are reaching required temperature
Under degree pressure condition gas hydrates crystal is increasingly generated in reactor bottom media voids；Day under the conditions of the electromagnetic induction
The decomposable process of right gas hydrate comprises the following steps：First, in reactor outside around upper a number of induction coil, coil
Adjustable high-power power supply is connected to, alternating magnetic field is constructed by adding AC power into induction coil；Secondly, when in magnetic field
When the magnetic line of force acts on container made of iron shell by insulating barrier, the magnetic line of force is cut, and is produced a large amount of small vortex, is made container made of iron
Itself generates heat rapidly, so as to reach the purpose of heating；Finally, reach under the conditions of certain temperature and pressure, gas hydrates are carried out
Decompose；Energy conversion process in above-mentioned decomposable process is as follows：
Electric energy → magnetic energy → electric energy → heat energy；Wherein first electric energy refers to be provided by power supply, and second electric energy is for heating
Induced-current and vortex, change by magnetic field, effectively raise heating efficiency.
The decomposition of gas hydrates under the conditions of the building-up process and electromagnetic induction of porous media gas hydrates
Journey, the data collecting system of pressure transmitter, temperature sensor and resistivity detection electrode composition is by the experiment in reactor
Measured temperature, pressure data are timely fed back in computer；Temperature sensor measures gas hydrate synthesis and decomposable process
The temperature change of middle internal main positions；Resistivity detection electrode is used for measuring the change in resistance before and after reaction, to observe water
Deposit variation characteristic before and after compound formation and decomposition；The also interior probe for being provided with cold light source of reactor, at any time by reactor
Interior situation is fed back.
Preferably, the induction coil is protected using insulating temperature resistant meterial.
Preferably, the position of sensor is located at reactor bottom edge, two/Radius and circle centre position respectively.
Preferably, probe is away from bottom 1/3rd, 2/3rds and top.
Preferably, detection electrode is uniformly distributed in reactor inwall, and per tetrad, totally four groups 16.
Advantages and positive effects of the present invention are：
1）, can natural gas hydrate formation under simulation stratum condition.
2）, many factors can be determined：Change, the change of system pressure, the natural gas hydration of system temperature before and after reaction
The changing value of resistivity in thing formation and decomposable process.
3）, bottom gas injection mode closer to true environment gas diffusion process, make experimental result more reliable.
4）, for the traditional heating mode of thermal resistance, induction coil does not generate heat in itself, and is added by magnetic field
The mode of heat is more efficient, and the service life of instrument is longer.
5）, this device make simple, cost is relatively low, compensate for the shortcoming that microwave heating radiation is strong, experimental provision is complicated.
6）, when electromagnetic induction technology is applied to the exploitation of live gas hydrates can effectively solve the problem that heat injection method heat injection
The shortcoming that efficiency is low, heat waste is serious, the exploitation for different types of gas hydrates gas reservoir provides technical support.
7）, this device the circulatory system ensure that experiment used in gas and water source can reuse.
In addition, synthesis of natural gas hydrate in laboratory conditions；Gas hydrates formation, decomposable process are monitored in real time
The change of middle temperature, pressure；In laboratory conditions gas hydrates are decomposed using electromagnetic induction principle；Monitoring is natural in real time
Gas hydrate change in resistance in formation and decomposable process, the convenient change procedure for grasping hydrate sediment；Real Time Observation
The change procedure that gas hydrate synthesis is decomposed, is that more efficient utilization electromagnetic induction principle exploitation of gas hydrate lays solid base
Plinth.
Brief description of the drawings
Fig. 1 decomposes the schematic device of gas hydrates for the electromagnetic induction of the present invention.
Fig. 2 is temperature sensor distributing position of the invention.
Embodiment
The device work of gas hydrates is decomposed to the electromagnetic induction of the present invention with reference to the accompanying drawings and detailed description
It is further described.
As shown in Figure 1-2, the device of electromagnetic induction of the invention decomposition gas hydrates, including reaction under high pressure system,
Low-temperature cooling system, the circulatory system, EM induction system, the part of data collecting system five；The reaction under high pressure system is by high pressure
High-pressure natural gas in gas cylinder 1 provides pressure condition, and the buffered bottle 2 of high-pressure natural gas, pretreatment tank 3 are pre-processed, reacted
Carried out in closed stainless steel cauldron 4；The low-temperature cooling system is made up of constant temperature water tank 5, will pretreatment tank 3, stainless
Steel reactor 4 is placed in constant temperature water tank, is adopted during reaction progress by the temperature of water in regulating tank come controlling reaction temperature
Uniformly heated with water bath with thermostatic control；The EM induction system is by induction coil 11 and adjustable large power supply and control system
System 6 is constituted, and external condition is provided to decompose gas hydrates；The data collecting system by PT100 temperature sensors 12,
CYB-20S pressure transmitters 14, resistivity detection electrode 13, computer 7 are constituted, the PT100 temperature sensors 12, CYB-
The data collected are timely fed back in computer 7 by 20S pressure transmitters 14, resistivity detection electrode 13；The cyclic system
System make it that decompose obtained natural gas returns in recovery gas cylinder 10 by moisture trap 9, again flows into through the supercharging of booster pump 19
In gas cylinder 1.
The device of the present invention is realized by the following method electromagnetic induction and decomposes gas hydrates：It is natural including porous media
The decomposable process of gas hydrates under the conditions of the building-up process and electromagnetic induction of gas hydrate；The porous media natural gas
The building-up process of hydrate comprises the following steps：First, according to needed for forming gas hydrates high pressure, low temperature geology bar
Part, porous media is simulated with the sea sand of different-grain diameter；Secondly, the natural gas in gas cylinder is passed through into pressure regulator valve 18, surge tank 2
To reduce its pressure more stably pressure is obtained to ensure；Again by pre-processing tank 3, pure high-pressure natural gas is obtained by entering
Gas port 17 enters in reactor 4 to construct hyperbaric environment needed for experiment；Finally, the simulative gas by the way of the gas injection of bottom
Diffusion process, the water in temperature controlled water tank 8 is injected in reactor 4 through water inlet 15, is closed after water level set in advance is reached
Water inlet, pretreatment tank 3, reactor 4 are placed in water bath with thermostatic control to ensure that temperature conditionss needed for experiment meet the requirements, reaching
Under the conditions of the temperature, pressure needed gas hydrates crystal is increasingly generated in the bottom dielectric space of reactor 4；The electromagnetic induction
Under the conditions of the decomposable processes of gas hydrates comprise the following steps：First, in reactor 4 outside around upper a number of sensing
Coil 11, coil is connected to adjustable high-power power supply and control system 6, by adding AC power into induction coil 11 come structure
Make alternating magnetic field；Secondly, when the magnetic line of force acts on container made of iron shell by insulating barrier in magnetic field, the magnetic line of force is cut, production
Raw a large amount of small vortex, make container itself heating rapidly, so as to reach the purpose of heating；Finally, certain temperature and pressure condition is reached
Under, gas hydrates are decomposed；Energy conversion process in above-mentioned decomposable process is as follows：
Electric energy → magnetic energy → electric energy → heat energy；Wherein first electric energy refers to be provided by power supply, and second electric energy is for heating
Induced-current and vortex, change by magnetic field, effectively raise heating efficiency.
The decomposition of gas hydrates under the conditions of the building-up process and electromagnetic induction of porous media gas hydrates
Journey, the data collecting system that pressure transmitter 14, temperature sensor 12 and resistivity detection electrode 13 are constituted is by reactor 4
Temperature, pressure data measured by interior experiment are timely fed back in computer 7；Temperature sensor 12 measure gas hydrate synthesis with
And in decomposable process internal main positions temperature change；Resistivity detection electrode 13 is used for measuring the resistivity change before and after reaction
Change, with the deposit variation characteristic before and after observing gas hydrate synthesis and decomposing；The also interior probe for being provided with cold light source of reactor 4
21, the situation in reactor 4 is fed back at any time.
The induction coil 11 is protected using insulating temperature resistant meterial.
The position of temperature sensor 12 is located at the bottom margin of reactor 4, two/Radius and circle centre position respectively.
Temperature sensor 12 is away from the bottom 1/3rd, 2/3rds of reactor 4 and top.
Resistivity detection electrode 13 is uniformly distributed in reactor inwall, per tetrad, totally four groups 16.
Embodiment described above is merely to illustrate the technological thought and feature of the present invention, in the art its object is to make
Technical staff it will be appreciated that present disclosure and implementing according to this, it is impossible to the patent model of the present invention is only limited with the present embodiment
Enclose, i.e., equal change or modification that all disclosed spirit is made, still fall in the scope of the claims of the present invention.
Claims (13)
1. a kind of electromagnetic induction decomposes the device of gas hydrates, including reaction under high pressure system, low-temperature cooling system, cyclic system
System, EM induction system, the part of data collecting system five, it is characterised in that：The reaction under high pressure system is by gas cylinder（1）It is interior
High-pressure natural gas provide pressure condition, the buffered bottle of high-pressure natural gas（2）, pretreatment tank（3）Pre-processed, reacted close
The reactor closed（4）It is interior to carry out；The low-temperature cooling system is by constant temperature water tank（5）Composition, pre-processes tank（3）, stainless steel reaction
Kettle（4）It is placed in constant temperature water tank, by the temperature of water in regulating tank come controlling reaction temperature during reaction progress, using perseverance
Tepidarium is uniformly heated；The EM induction system is by induction coil（11）With adjustable large power supply and control system
（6）Composition, external condition is provided to decompose gas hydrates；The data collecting system is by temperature sensor（12）, pressure
Transmitter（14）, resistivity detection electrode（13）, computer（7）Composition, the temperature sensor（12）, pressure transmitter
（14）, resistivity detection electrode（13）The data collected are timely fed back to computer（7）In；The circulatory system makes score
The natural gas that solution is obtained passes through moisture trap（9）Return to recovery gas cylinder（10）In, through booster pump（19）Supercharging again flows into height
Air bottle（1）In.
2. a kind of electromagnetic induction according to claim 1 decomposes the device of gas hydrates, it is characterised in that：It is described anti-
Answer kettle（4）Including water inlet（15）, delivery port（16）And air inlet（17）.
3. a kind of electromagnetic induction according to claim 2 decomposes the device of gas hydrates, it is characterised in that：It is described anti-
Answer kettle（4）Inside also include cold light source to pop one's head in（21）.
4. a kind of electromagnetic induction according to claim 3 decomposes the device of gas hydrates, it is characterised in that：Each tracheae
And water pipe line is respectively provided with pressure regulator valve（18）And flowmeter（20）.
5. a kind of electromagnetic induction according to claim 4 decomposes the device of gas hydrates, it is characterised in that：The temperature
Spend sensor（12）For PT100 temperature sensors.
6. a kind of electromagnetic induction according to claim 5 decomposes the device of gas hydrates, it is characterised in that：The pressure
Power transmitter（14）For CYB-20S pressure transmitters.
7. a kind of electromagnetic induction according to claim 6 decomposes the device of gas hydrates, it is characterised in that：It is described anti-
Answer kettle（4）Made using the material of stainless steel.
8. the method that the device electromagnetic induction described in a kind of use claim 1 to 7 any one decomposes gas hydrates, bag
Include the decomposable process of gas hydrates under the conditions of the building-up process and electromagnetic induction of porous media gas hydrates；It is special
Levy and be, the building-up process of the porous media gas hydrates comprises the following steps：
1）, the high pressure according to needed for forming gas hydrates, low temperature geological conditions, be situated between with the simulation of the sea sand of different-grain diameter is porous
Matter；Secondly, the natural gas in gas cylinder is passed through into pressure regulator valve（18）, surge tank（2）To reduce its pressure to ensure acquisition
More stably pressure；
2）, by pre-processing tank（3）, pure high-pressure natural gas is obtained by air inlet（17）Into reactor（4）It is interior with construct
Hyperbaric environment needed for experiment；
3）, by the way of the gas injection of bottom simulative gas diffusion process, by temperature controlled water tank（8）In water through water inlet（15）
Inject reactor（4）It is interior, water inlet is closed after water level set in advance when reaching, tank is pre-processed（3）, reactor（4）It is placed in perseverance
To ensure that temperature conditionss needed for experiment meet the requirements in tepidarium, the reactor under the conditions of required temperature, pressure is reached（4）Bottom
Gas hydrates crystal is increasingly generated in portion's media voids；
The decomposable process of gas hydrates comprises the following steps under the conditions of the electromagnetic induction：
, in reactor（4）Outside around upper a number of induction coil（11）, coil be connected to adjustable high-power power supply and
Control system（6）, by induction coil（11）In plus AC power construct alternating magnetic field；
, when the magnetic line of force acts on container made of iron shell by insulating barrier in magnetic field, the magnetic line of force is cut, and produces a large amount of small whirlpools
Stream, makes container itself heating rapidly, so as to reach the purpose of heating；
, reach certain temperature and pressure under the conditions of, gas hydrates are decomposed；
Energy conversion process in above-mentioned decomposable process is as follows：
Electric energy → magnetic energy → electric energy → heat energy；Wherein first electric energy refers to be provided by power supply, and second electric energy is for heating
Induced-current and vortex, change by magnetic field, effectively raise heating efficiency.
9. the method that electromagnetic induction according to claim 8 decomposes gas hydrates, it is characterised in that：Porous Jie
Under the conditions of the building-up process and electromagnetic induction of matter gas hydrates in the decomposable process of gas hydrates, pressure transmitter
（14）, temperature sensor（12）And resistivity detection electrode（13）The data collecting system of composition is by reactor（4）Interior reality
Test measured temperature, pressure data and be timely fed back to computer（7）In；Temperature sensor（12）Measure gas hydrate synthesis and
The temperature change of internal main positions in decomposable process；Resistivity detection electrode（13）Become for measuring the resistivity before and after reaction
Change, with the deposit variation characteristic before and after observing gas hydrate synthesis and decomposing；Reactor（4）The also interior probe for being provided with cold light source
（21）, at any time by reactor（4）Interior situation is fed back.
10. the method that electromagnetic induction according to claim 9 decomposes gas hydrates, it is characterised in that：The sensing
Coil（11）Protected using insulating temperature resistant meterial.
11. the method that electromagnetic induction according to claim 9 decomposes gas hydrates, it is characterised in that：The temperature
Sensor（12）Position respectively be located at reactor（4）Bottom margin, two/Radius and circle centre position.
12. the method that electromagnetic induction according to claim 9 decomposes gas hydrates, it is characterised in that：The temperature
Sensor（12）Away from reactor（4）Bottom 1/3rd, 2/3rds and top.
13. the method that electromagnetic induction according to claim 9 decomposes gas hydrates, it is characterised in that：The resistance
Rate detection electrode（13）Reactor inwall is uniformly distributed in, per tetrad, totally four groups 16.
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Cited By (6)
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| CN111589393A (en) * | 2020-05-26 | 2020-08-28 | 中国科学院西北生态环境资源研究院 | Natural gas hydrate experiment reaction kettle device suitable for low-field nuclear magnetic resonance |
| CN111810096A (en) * | 2020-07-17 | 2020-10-23 | 中国海洋石油集团有限公司 | Automatic microwave stirring, heating and decomposing device for natural gas hydrate and using method thereof |
| CN113842853A (en) * | 2021-09-23 | 2021-12-28 | 青岛科技大学 | Magnetic control hydrate reaction generating device |
| CN114015487A (en) * | 2021-11-10 | 2022-02-08 | 燕山大学 | Preparation method of nano ice hydrate |
| CN114062058A (en) * | 2021-11-16 | 2022-02-18 | 山东大学 | Seabed excited gas collecting device |
| US11834620B2 (en) | 2020-11-16 | 2023-12-05 | The Hong Kong University Of Science And Technology | Centrifuge energy harvesting chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111589393A (en) * | 2020-05-26 | 2020-08-28 | 中国科学院西北生态环境资源研究院 | Natural gas hydrate experiment reaction kettle device suitable for low-field nuclear magnetic resonance |
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| US11834620B2 (en) | 2020-11-16 | 2023-12-05 | The Hong Kong University Of Science And Technology | Centrifuge energy harvesting chamber |
| CN113842853A (en) * | 2021-09-23 | 2021-12-28 | 青岛科技大学 | Magnetic control hydrate reaction generating device |
| CN114015487A (en) * | 2021-11-10 | 2022-02-08 | 燕山大学 | Preparation method of nano ice hydrate |
| CN114015487B (en) * | 2021-11-10 | 2022-07-05 | 燕山大学 | Preparation method of nano ice hydrate |
| CN114062058A (en) * | 2021-11-16 | 2022-02-18 | 山东大学 | Seabed excited gas collecting device |
| CN114062058B (en) * | 2021-11-16 | 2022-09-13 | 山东大学 | Seabed excited gas collecting device |
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