CN206721147U - A kind of electromagnetic induction decomposes the device of gas hydrates - Google Patents

A kind of electromagnetic induction decomposes the device of gas hydrates Download PDF

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Publication number
CN206721147U
CN206721147U CN201720044648.8U CN201720044648U CN206721147U CN 206721147 U CN206721147 U CN 206721147U CN 201720044648 U CN201720044648 U CN 201720044648U CN 206721147 U CN206721147 U CN 206721147U
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temperature
pressure
gas
gas hydrates
electromagnetic induction
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CN201720044648.8U
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范翔宇
卢鑫炜
赵鹏斐
张千贵
段美恒
郭东亚
倪涛
候康康
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Southwest Petroleum University
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Southwest Petroleum University
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Abstract

The device 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 are the utility model is related to, 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-process tank(3), stainless steel cauldron(4)Be placed in constant temperature water tank, reaction carry out during by the temperature of water in regulating tank come controlling reaction temperature, uniformly heated using water bath with thermostatic control;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

A kind of electromagnetic induction decomposes the device of gas hydrates
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.
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, and crystal, which decomposes, 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 the alternative energy source of following petroleum gas by various countries.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 Destroy, gas hydrates are extremely easy in decomposition, and the research sampling to gas hydrates causes great difficulty, samples into addition Ben Taigao, synthesis under laboratory condition, decompose gas hydrates and be increasingly becoming research tendency.
Gas hydrate dissociation test research device was concentrated mainly on the methods of heat injection, decompression, microwave heating at present, There has been no 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 microwave heating method decomposer discomposing effect is preferable, equipment is complex, and microwave spoke is also easy to produce under laboratory condition Penetrate;Electromagnetic induction principle decomposition gas hydrates principle is simple, 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- System is answered to provide pressure condition by the high-pressure natural gas in gas cylinder, the buffered bottle pre-part reason tank of high-pressure natural gas is located in advance Reason, reacts and 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, reaction carry out during by the temperature of water in regulating tank come controlling reaction temperature, 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 decomposes Natural gas under the conditions of the method for gas hydrates, including the building-up process of porous media gas hydrates and electromagnetic induction 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 obtains more stably pressure to reduce its pressure by pressure regulator valve, surge tank to ensure;Again by pre- Process tank, it is interior with hyperbaric environment needed for construction experiment into reactor to obtain pure high-pressure natural gas;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, under the conditions of reaching 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 is provided by power supply, and second electric energy is for sending out The induced-current and vortex of heat, 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 front and rear change in resistance of reaction, to observe water Compound forms and decomposed front and rear deposit variation characteristic;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, half 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.
The 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:The change of system temperature, the change of system pressure, natural gas hydration before and after reaction Thing forms the changing value with resistivity in 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 shortcomings that microwave heating radiation is strong, experimental provision is complicated.
6), when electromagnetic induction technology be applied to live gas hydrates exploitation when can effectively solve the problem that heat injection method heat injection The shortcomings that efficiency is low, heat waste is serious, the exploitation for different types of gas hydrates gas reservoir provide technical support.
7), this device the circulatory system ensure that experiment gas used and water source can reuse.
In addition, synthesis of natural gas hydrate in laboratory conditions;The formation of monitoring gas hydrates, decomposable process 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 is being formed and change in resistance in decomposable process, the convenient change procedure for grasping hydrate sediment;Real Time Observation The change procedure that gas hydrate synthesis decomposes, solid base is laid using electromagnetic induction principle exploitation of gas hydrate to be more efficient Plinth.
Brief description of the drawings
Fig. 1 is that the electromagnetic induction of the present invention decomposes the schematic device of gas hydrates.
Fig. 2 is the temperature sensor distributing position of the present 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, reaction carry out during by the temperature of water in regulating tank come controlling reaction temperature, adopt 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 The composition of system 6, 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 form, 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, required high pressure, low temperature geology bar are formed according to gas hydrates 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 with hyperbaric environment needed for construction 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, 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 are 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 generate heat 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 is provided by power supply, and second electric energy is for sending out The induced-current and vortex of heat, 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 form 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 front and rear resistivity change of reaction Change, to observe gas hydrate synthesis and decompose front and rear deposit variation characteristic;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, half 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., the equal change or modification that all disclosed spirit is made, still fall in the scope of the claims of the present invention.

Claims (7)

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)Interior progress;The low-temperature cooling system is by constant temperature water tank(5)Composition, pre-process tank(3), stainless steel reaction Kettle(4)Be placed in constant temperature water tank, reaction carry out during by the temperature of water in regulating tank come controlling reaction temperature, 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 obtains 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.
CN201720044648.8U 2017-01-16 2017-01-16 A kind of electromagnetic induction decomposes the device of gas hydrates Expired - Fee Related CN206721147U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110237780A (en) * 2019-05-23 2019-09-17 兰州理工大学 A kind of environmentally friendly gas hydrate synthesis system of multipurpose
CN112480984A (en) * 2020-12-01 2021-03-12 西南石油大学 Device and method for decomposing natural gas hydrate through electromagnetic oscillation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110237780A (en) * 2019-05-23 2019-09-17 兰州理工大学 A kind of environmentally friendly gas hydrate synthesis system of multipurpose
CN110237780B (en) * 2019-05-23 2024-01-26 兰州理工大学 Multipurpose environment-friendly hydrate formation system
CN112480984A (en) * 2020-12-01 2021-03-12 西南石油大学 Device and method for decomposing natural gas hydrate through electromagnetic oscillation

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