CN108757056A - A kind of natural gas pressure difference driving electricity generation system - Google Patents
A kind of natural gas pressure difference driving electricity generation system Download PDFInfo
- Publication number
- CN108757056A CN108757056A CN201810455536.0A CN201810455536A CN108757056A CN 108757056 A CN108757056 A CN 108757056A CN 201810455536 A CN201810455536 A CN 201810455536A CN 108757056 A CN108757056 A CN 108757056A
- Authority
- CN
- China
- Prior art keywords
- pressure
- natural gas
- heat
- air
- connect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Abstract
The embodiment of the invention discloses a kind of natural gas pressure differences to drive electricity generation system, including：Pressure differential module, power generation drive module and generator；The input terminal of pressure differential module is connect with high pressure line, and output end is connect with low-pressure line, is low pressure natural gas for being depressured high-pressure natural gas by the Natural gas expander in pressure differential module；Natural gas expander is connect with power generation drive module, for providing pressure energy for power generation drive module；Second input terminal of the drive module that generates electricity accesses air, and air is compressed into pressure-air for passing through pressure energy；Power generation drive module is connect with generator, the pressure energy for passing through pressure-air and the rotation of heat-driven generator；Power generation drive module is also connect with pressure differential module, is heated up for low pressure natural gas for the thermal energy by pressure-air.Technical solution provided in an embodiment of the present invention, it is larger to solve the existing energy consumption by way of gas distributing system top pressure power generation, the low problem of generating efficiency.
Description
Technical field
The present embodiments relate to natural gas power technical field more particularly to a kind of natural gas pressure difference driving power generation systems
System.
Background technology
Natural gas is transported after being gone out by underground mining by gas distributing system, the pressure of gas distributing system much higher than with
Pressure needed for family, majority Long-distance Transmission Pipeline pressure is in 10MPa or more both at home and abroad.Natural gas grows defeated pipe by natural gas
After road is transported to the urban gate station with gas area, it need to be depressurized to 4.0MPa, 2.5MPa or 1.6MPa, subsequently into city high pressure
Pipe network.The natural gas of city high pressure pipe network enters fecder system network after the decompression of each high pressure voltage regulating station.Later, the day of fecder system network
Right gas also needs to be depressurized again into low-pressure pipe network, and pressure is in 0.4MPa or so.Finally, by low-pressure pipe network, by low pressure natural gas
It is delivered to terminal user.Natural gas will lose a large amount of pressure energy during pressure regulation, can also be set to pressure regulation because of drastically cooling down
Standby and pipe-line equipment operational safety constitutes a threat to.If adequate measures can be taken to recycle pressure energy, it is translated into machine
The forms such as tool energy, electric energy, cold energy can effectively improve the utilization rate of the energy and the performance driving economy of pipe network.
Currently, gas distributing system overbottom pressure includes mainly two aspects of freezing and generate electricity using technology.Wherein, refrigeration refers mainly to height
Pressure air causes temperature to reduce during decompressional expansion because of heat release, and the cryogen generated after expansion contains very big
Cold energy with this part cold energy of refrigerant recovering, and is supplied to cold energy user use, such as：Gas dehydration, lighter hydrocarbons separation, liquefaction
Natural gas (Liquefied Natural Gas, LNG) peak regulation, gas hydrates (Natural Gas Hydrate, NGH) are adjusted
Peak, rubber pulverizing, ice making and life refrigeration etc.；Power generation refers mainly to recycle high pressure instead of traditional pressure regulator valve with expanding machine natural
Pressure energy in gas pressure reduction, and use it for generating electricity, such as：Direct expansion power generation, combined cycle generation etc..
But it is existing by way of gas distributing system top pressure power generation after natural gas expansion work, natural gas temperature
It can drastically reduce, for example, the natural gas temperature after cooling can be reduced to subzero 25 degree or so, in order to make the natural gas after cooling return
Temperature can consume other energy production thermal energy, as the natural gas of combustion parts generates thermal energy or passes through electric energy production thermal energy.Always
Apparently, the existing energy expenditure by way of gas distributing system top pressure power generation is larger, and generating efficiency is low for body.
Invention content
The present invention provides a kind of natural gas pressure difference and drives electricity generation system, to solve existing to send out by gas distributing system overbottom pressure
The mode energy consumption of electricity is larger, the low problem of generating efficiency.
An embodiment of the present invention provides a kind of natural gas pressure differences to drive electricity generation system, including：Pressure differential module, power generation are driven
Dynamic model block and generator；
The input terminal of the pressure differential module is connect with high pressure line, and output end is connect with low-pressure line, for passing through
It is low pressure natural gas that high-pressure natural gas is depressured by the Natural gas expander in the pressure differential module；The Natural gas expander
It is connect with the first input end of the power generation drive module, for providing pressure energy for the power generation drive module；
Second input terminal of the power generation drive module accesses air, for being compressed the air by the pressure energy
At pressure-air；First output end of the power generation drive module is connect with the generator, for passing through the pressure-air
Pressure energy and heat-driven described in generator rotation；The second output terminal of the power generation drive module and the pressure differential mould
Block connects, and heats up for the low pressure natural gas for the thermal energy by the pressure-air.
Optionally, the natural gas pressure difference drives electricity generation system, further includes：Solar energy storage module；The solar energy storage
Energy module is connect with the third input terminal of the power generation drive module, for providing thermal energy for the pressure-air.
Optionally, the pressure differential module further includes：First valve, N number of First Heat Exchanger, the first storage tank and second
Valve；First valve, the Natural gas expander, N number of First Heat Exchanger, first storage tank and described second
Valve is sequentially connected with；The input terminal of first valve is connect with the high pressure line, the output end of second valve and institute
State low-pressure line connection；The natural gas side-entrance of the 1st First Heat Exchanger in N number of First Heat Exchanger and the natural gas
The output end of expanding machine connects；The natural gas side outlet of n-th First Heat Exchanger is connect with the input terminal of first storage tank,
In, N is positive integer.
Optionally, the power generation drive module includes：N number of compressor connected in sequence, the second storage tank, M turbine；It is described
N number of compressor is coaxially disposed with the Natural gas expander；The input terminal of k-th of compressor in N number of compressor with it is N number of
The air side outlet of k-th of First Heat Exchanger in the First Heat Exchanger connects, the output end and kth of -1 compressor of kth
The air side entrance of a First Heat Exchanger connects；Wherein, N is positive integer, and k is the positive integer more than 1 and no more than N；1st pressure
The input terminal of contracting machine is connect with the air side outlet of the 1st First Heat Exchanger；The air side entrance of 1st First Heat Exchanger
Pass through first filter and air communication；The output end of n-th compressor is connect with the input terminal of second storage tank；The M
A turbine and the generator coaxle are arranged, for by the pressure-air pressure energy and thermal energy be converted into mechanical energy, institute
The output end for stating the m-th turbine in M turbine is connected with external environment air；Wherein, M is positive integer.
Optionally, natural gas pressure difference driving electricity generation system further includes solar energy storage module, the solar energy storage module
Including：M connected in sequence the second heat exchangers, heat-storing device, first circulation pump and third storage tank；In M the second heat exchangers
The air side outlet of the second heat exchanger of l-th is connect with the input terminal of the l-th turbine in M turbine；Air side entrance and the
The output end connection of L-1 turbine；Wherein, L is the positive integer more than 1 and no more than M；The 1st in M the second heat exchangers the
The air side entrance of two heat exchangers is connect with the output end of second storage tank, and air side outlet and the 1st in M turbine are saturating
Flat input terminal connection；The conduction oil side outlet of 1st second heat exchanger is connect with the input terminal of the third storage tank, the
The M conduction oil side entrances of the second heat exchanger are connect with the low temperature side outlet of the heat-storing device；The first circulation pump is used for
The first conduction oil in the third storage tank is pumped into the low temperature side entrance of the heat-storing device；The heat-storing device is for passing through
The heat of storage improves the temperature of first conduction oil, and is exported to the m-th second and changed by the low temperature side outlet
Hot device.
Optionally, the solar energy storage module further includes：4th storage tank connected in sequence, second circulation pump, solar energy
Heat collector；The high temperature side outlet of the heat-storing device is connect with the input terminal of the 4th storage tank, and for temperature will to be reduced
Two conduction oils are input to the 4th storage tank；The second circulation pump by second conduction oil for reducing temperature for being pumped into institute
State solar thermal collector；The solar thermal collector is used to collect the heat of sunlight, and improves described the by the heat
The temperature of two conduction oils；The output end of the solar thermal collector is connect with the high temperature side entrance of the heat-storing device, and being used for will
Second conduction oil for improving temperature is input to the heat-storing device, carries out the storage of heat.
Optionally, it is filled with phase-change heat-storage material inside the heat-storing device, for according to itself different physical state
Storage energy and output energy.
Optionally, the phase-change heat-storage material is erythritol, compound nitrate or hydrated salt.
Optionally, the compound nitrate is the mixture of potassium nitrate, sodium nitrate and ammonium nitrate.
Optionally, the quality proportioning of the mixture of the potassium nitrate, sodium nitrate and ammonium nitrate is 9.5:20:70.5.
Optionally, the hydrated salt is magnesium chloride hexahydrate.
Natural gas pressure difference provided in an embodiment of the present invention drives electricity generation system, including pressure differential module, power generation driving mould
Block and generator, pressure differential module are connect with high pressure line and low-pressure line respectively, will be high for passing through Natural gas expander
It is low pressure natural gas to press natural gas decompression, while Natural gas expander is connect with the first input end of power generation drive module, is used for
Pressure energy is provided for power generation drive module, the second input terminal of the drive module that generates electricity accesses air, and power generation drive module passes through upper
It states pressure energy and air is compressed into pressure-air, and rotated by the pressure energy of pressure-air and heat-driven generator, power generation
Drive module is also connect with pressure differential module, and the low pressure natural gas for being generated for pressure differential module provides thermal energy so that
Low pressure natural gas temperature increases, and prevents from, in the case where low pressure natural gas temperature is too low, causing voltage adjusting device and pipe-line equipment
Damage, need not consume electric energy or burning natural gas heats up to low pressure natural gas, greatly reduce energy consumption, and
And gas distributing system overbottom pressure is utilized and is combined with compressed-air energy storage power generation by scheme provided in an embodiment of the present invention, only passes through height
The pressure energy driving power generation drive module of warm natural gas itself carries out air compression, and air is carried out without motor is in addition arranged
Compression, equally reduces energy consumption, solves the problems, such as that existing compressed-air energy storage generating equipment energy consumption is larger.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of natural gas pressure difference driving electricity generation system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another natural gas pressure difference driving electricity generation system provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another natural gas pressure difference driving electricity generation system provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
In the prior art, gas distributing system top pressure power generation mode is：Natural gas by 6 expansion work of Natural gas expander,
Mechanical energy is generated, and drives generator 20 to produce electricl energy by mechanical energy.Conventional compressed air energy-storage system is mainly using coming from
The trough-electricity of power grid abandons the drive motors such as wind-powered electricity generation and compressor is driven to carry out air compression, although power grid low ebb electricity price or abandoning
Wind-powered electricity generation valence is relatively inexpensive, but in a manner of electrical energy drive compressor, Energy Consumption Cost is still higher.
The technology being combined with compressed-air energy storage power generation is utilized to have not been reported gas distributing system overbottom pressure.Conventional pressure
In contracting air energy storage power generation, mainly utilizes electrical energy drive motor and compressor is driven to complete air and compress, energy consumption
It is larger.
Natural gas pressure difference driving electricity generation system provided in this embodiment, which is taken, utilizes gas distributing system overbottom pressure and compression sky
The technology that gas energy storage power generation is combined drives compressor compresses air first with natural gas pressure difference, air is compressed into high pressure
Air provides power for generator 20 by the pressure energy of pressure-air later, and is low pressure day by the heat of pressure-air
Right gas lift temperature, improves the utilization rate of pressure energy of natural gas, reduces energy consumption, to a certain extent, realize natural gas
The theory of " zero consumption " can realize that air compresses merely with the pressure difference during gas distributing system pressure regulation, drive and compress with motor
The traditional scheme of machine is compared, and energy consumption is greatly reduced.
The embodiment of the present invention provides a kind of natural gas pressure difference driving electricity generation system, and with reference to figure 1, Fig. 1 is the embodiment of the present invention
A kind of structural schematic diagram of natural gas pressure difference driving electricity generation system provided, natural gas pressure difference driving electricity generation system include：Pressure
Poor drive module 30, power generation drive module 40 and generator 20；
The input terminal of pressure differential module 30 is connect with high pressure line 1, and output end is connect with low-pressure line 0, for passing through
It is low pressure natural gas that high-pressure natural gas is depressured by the Natural gas expander 6 in pressure differential module 30；Natural gas expander 6 and hair
The first input end of Electric drive module 40 connects, for providing pressure energy for power generation drive module 40；
Second input terminal of the drive module 40 that generates electricity accesses air, and air is compressed into high pressure sky for passing through pressure energy
Gas；First output end of power generation drive module 40 is connect with generator 20, and the pressure energy and thermal energy for passing through pressure-air are driven
Dynamic generator rotation；The second output terminal of power generation drive module 40 is connect with pressure differential module 30, for passing through pressure-air
Thermal energy be low pressure natural gas heating.
Specifically, 30 input terminal of pressure differential module in natural gas pressure difference driving electricity generation system is connect with high pressure line 1,
For accessing the high-pressure natural gas in pressure piping, it is depressured by the expansion of the Natural gas expander 6 in pressure differential module 30,
It is converted into low pressure natural gas, and the pressure energy of generation is exported to power generation drive module 40, power generation drive module 40 utilizes pressure
Air boil down to pressure-air, pressure-air can be had higher pressure energy and thermal energy, the pressure energy and thermal energy can convert
For mechanical energy, driving generator 20 rotates, and the drive module 40 that generates electricity is also by second output terminal and pressure differential module 30
Connection can either make low pressure natural gas heat up, protect natural gas for pressure-air and low pressure natural gas to be carried out heat exchange
Equipment and pipeline, and the cold energy of low pressure natural gas can be utilized so that pressure-air cools down.Low pressure after heating
Natural gas enters low-pressure line 0, flows to downstream user.
High pressure line 1 and low-pressure line 0 in the present embodiment are high pressure line and low-pressure line on relative meaning.Example
Such as, when natural gas is transmitted to city pressure piping by long distance pipeline, long distance pipeline is high pressure line 1, and city pressure piping is
Low-pressure line 0；When natural gas is transmitted to middle pressure pipeline by city pressure piping, city pressure piping is high pressure line 1, middle pressure
Pipeline is low-pressure line 0.
Natural gas pressure difference provided in an embodiment of the present invention drives electricity generation system, by Natural gas expander by high-pressure natural gas
Decompression is low pressure natural gas, while Natural gas expander provides pressure energy for power generation drive module, the second of the drive module that generates electricity
Input terminal accesses air, and air is compressed into pressure-air, the pressure of pressure-air by power generation drive module by above-mentioned pressure energy
Generator can be driven to rotate with thermal energy, the low pressure natural gas that pressure-air can also generate for pressure differential module provide heat
It can so that low pressure natural gas temperature increases, and prevents from, in the case where low pressure natural gas temperature is too low, setting voltage adjusting device and pipeline
It is standby to damage, electric energy need not be consumed or burning natural gas heats up to low pressure natural gas, greatly reduce the energy
Consumption, and gas distributing system overbottom pressure is utilized and is combined with compressed-air energy storage power generation by scheme provided in an embodiment of the present invention,
Only power generation drive module is driven to carry out air compression by the pressure energy of high-pressure natural gas itself, without motor is in addition arranged
Air compression is carried out, energy consumption is equally reduced, it is larger to solve existing compressed-air energy storage generating equipment energy consumption
Problem.
On the basis of the above embodiments, with reference to figure 2, Fig. 2 is another natural gas pressure difference provided in an embodiment of the present invention
Driving the structural schematic diagram of electricity generation system, natural gas pressure difference driving electricity generation system can also include：Solar energy storage module 50；Too
Positive energy energy-storage module 50 is connect with the third input terminal of power generation drive module 40, for providing thermal energy for pressure-air.
Because natural gas is supplied there are serious season, round the clock and the non-uniformity problem of hour, only pass through pressure differential
Module 30 and power generation drive module 40 drive electric energy caused by generator 20 to be difficult to meet the stabilization of generator 20 and constantly run.
For example, the natural gas supply amount in winter is greater than summer so that generating electricity in winter power is more than summer；The natural gas supply amount on daytime
More than night so that daytime, generated output was more than night；The natural gas supply amount of meal time is more than the non-meal time so that uses
The generated output of meal time is more than the non-meal time.In order to make the generated output of generator 20 not influenced by the period, the present embodiment
In natural gas pressure difference driving electricity generation system be additionally arranged solar energy storage module 50, solar energy storage module 50 can absorb the sun
The thermal energy of light, and the thermal energy is delivered to pressure-air so that pressure-air generates more mechanical energy.So when natural gas supplies
When to measuring smaller, power generation drive module 40 can not generate more thermal energy, can be carried out to thermal energy by solar energy storage module 50
Supplement, obtains relatively stable power generation output power.
Optionally, with reference to figure 3, Fig. 3 is another natural gas pressure difference driving electricity generation system provided in an embodiment of the present invention
Structural schematic diagram, pressure differential module can also include：First valve 5, N number of First Heat Exchanger, the first storage tank 9 and the second valve
Door 10；First valve 5, Natural gas expander 6, N number of First Heat Exchanger, the first storage tank 9 and the second valve 10 are sequentially connected with；The
The input terminal of one valve 5 is connect with high pressure line 1, and the output end of the second valve 10 is connect with low-pressure line 0；N number of first heat exchange
The natural gas side-entrance of the 1st First Heat Exchanger 7 in device is connect with the output end of Natural gas expander 6；N-th first exchanges heat
The natural gas side outlet of device 8 is connect with the input terminal of the first storage tank 9, wherein N is positive integer.
First Heat Exchanger includes four natural gas side-entrance, natural gas side outlet, air side-entrance and air side outlet companies
End is connect, natural gas is inputted by natural gas side-entrance, is exported by natural gas side outlet, and air is inputted from air side-entrance, by air
Side outlet exports, and natural gas and air can carry out heat exchange in First Heat Exchanger.High-pressure natural gas is by the first valve 5
Access Natural gas expander 6, high-pressure natural gas expansion work is converted into mechanical energy, obtains low pressure natural gas, low pressure natural gas from
The natural gas side-entrance of the 1st First Heat Exchanger 7 in N number of First Heat Exchanger inputs, the output of natural gas side outlet, same with this
When, air is flowed by the air side import of the 1st First Heat Exchanger 7, and outflow is exported by the air side of the 1st First Heat Exchanger 7,
Then low pressure natural gas has carried out heat exchange with air so that the temperature of low pressure natural gas increases, and then cryogenic natural gas enters the 2nd
The natural gas side-entrance of a First Heat Exchanger is exported by the natural gas side outlet of the 2nd First Heat Exchanger, and so on, finally
Cryogenic natural gas is inputted by the natural gas side entrance of n-th First Heat Exchanger 8, is gone out by the natural gas side of n-th First Heat Exchanger 8
Mouth output, the cryogenic natural gas temperature by n times heat exchange are increased, and the cryogenic natural gas after heating enters the first storage
Tank 9 is stored, and enters low-pressure line 0 by the second valve 10, flows to downstream user.
Illustratively, 2 First Heat Exchangers can be set, as shown in figure 3, natural by the low pressure that Natural gas expander 6 exports
Gas passes through heat exchange twice so that the temperature of cryogenic natural gas prevents cryogenic natural gas from being caused to pipeline and equipment close to room temperature
Damage.The echelon setting of two First Heat Exchangers, realizes the deep exploitation of cold energy in natural gas expansion process, multiple heat exchange
Compressed air can be cooled down step by step, reduces power consumption when compressed air.
Natural gas pressure difference, which drives electricity generation system, to include voltage regulating module, and voltage regulating module includes third valve connected in sequence
The 2, second filter 3 of door and regulator 4, third valve 2 are connect with high pressure line 1, and regulator 4 is connect with low-pressure line 0.
Under normal circumstances, it needs to close third valve 2, opens the first valve 5 and the second valve 10 so that high-pressure natural gas is through overpressure difference
Drive module flows into low-pressure line 0 after being depressured, but when pressure differential module breaks down or overhauled, in order to
The use of downstream user is not influenced, then needs to open third valve 2, close the first valve 5 and the second valve 10, high-pressure natural gas
The second filter 3 is flowed through by third valve 2, carries out natural gas contaminant filter, because during exploiting high-pressure natural gas, meeting
There are impurity such as the grains of sand, iron rust, water and sulfide, these impurity are moved with natural gas in conveyance conduit, abrasion pipeline and
Meter unit leads to its damage, influences the normal transport of natural gas, and impurity is carried out to high-pressure natural gas by the second filter 3
Filtering, the high-pressure natural gas by filtering are depressured by regulator 4, are input to low-pressure line 0, are flowed into downstream user.But
Voltage regulating module cannot can utilize the pressure difference of natural gas, spare when only being overhauled as natural gas pressure difference driving electricity generation system
Channel.
Optionally, with reference to figure 3, power generation drive module may include：N number of compressor connected in sequence, the second storage tank 15, M
A turbine；N number of compressor is coaxially disposed with Natural gas expander 6；The input terminal of k-th of compressor in N number of compressor with it is N number of
The air side outlet of k-th of First Heat Exchanger in First Heat Exchanger connects, the output end of -1 compressor of kth and k-th the
The air side entrance of one heat exchanger connects；Wherein, N is positive integer, and k is the positive integer more than 1 and no more than N；1st compressor
13 input terminal is connect with the air side outlet of the 1st First Heat Exchanger 7；The air side entrance of 1st First Heat Exchanger 7 passes through
First filter 11 and air communication；The output end of n-th compressor 14 is connect with the input terminal of the second storage tank 15；M turbine
With generator 20 be coaxially disposed, for by pressure-air pressure energy and thermal energy be converted into mechanical energy, the M in M turbine
The output end of a turbine 19 is connected with external environment air；Wherein, M is positive integer.
Compressor is the device that low-pressure gas is compressed into high pressure gas, in the present embodiment, Natural gas expander 6 with it is all
Compressor be all coaxially disposed, the mechanical energy of compressed air is provided for compressor, when Natural gas expander 6 moves, band dynamic pressure
Contracting machine moves.Optionally, Natural gas expander 6 can drive compressor movement by shaft coupling 12.
1st First Heat Exchanger 7 is used for by 11 input air of first filter, first filter 11 to miscellaneous in air
Matter is adsorbed, and air inputs the 1st compressor after First Heat Exchanger 7 and cryogenic natural gas carry out heat exchange cooling
Input terminal so that the 1st compressor compresses the air after cooling, and low-pressure air becomes pressure-air, and is compressing
In the process, the temperature of pressure-air increases, and output end of the pressure-air through the 1st compressor is exported to the 2nd First Heat Exchanger
Air side entrance, with cryogenic natural gas carry out heat exchange cooling after, by the air side outlet of the 2nd First Heat Exchanger export to
The input terminal of 2nd compressor, the 2nd compressor again compress the high pressure gas after cooling, and so on, by N-
The high pressure gas of 1 compressor output is input to the air side entrance of n-th First Heat Exchanger 8, after being cooled down, by n-th
The air side outlet of First Heat Exchanger 8 is exported to the input terminal of n-th compressor, after pressure-air is compressed, by n-th
The output end of compressor is exported to the input terminal of the second storage tank 15.
Optionally, with reference to figure 3, the number of compressor can be 2, and multiple compressors are connected with multiple First Heat Exchangers
Setting carries out multi-stage compression to high temperature air, and is cooled down between two neighboring compressor, with when reducing compressed air
Power consumption.
Second storage tank 15 is exported by the output end of the second storage tank 15 to M for temporarily being stored to pressure-air
The input terminal of the 1st turbine in a turbine.Turbine is the machine that the energy that will be accumulated in fluid media (medium) is converted into mechanical energy, again
Claim turbine.In the present embodiment, M turbine is coaxially disposed with generator 20, and turbine converts the pressure energy of pressure-air and thermal energy
For mechanical energy, generator 20 converts above-mentioned mechanical energy to electric energy.
Similarly, with reference to figure 3, the number of turbine can be 2, and multiple turbines are arranged in series, and can improve turning for mechanical energy
Efficiency is changed, the electric energy output power of generator 20 is increased.
Optionally, with reference to figure 3, it further includes solar energy storage module, solar energy storage that natural gas pressure difference, which drives electricity generation system,
Module may include：M connected in sequence the second heat exchangers, heat-storing device 23, first circulation pump 22 and third storage tank 21；M
The air side outlet of the second heat exchanger of l-th in second heat exchanger is connect with the input terminal of the l-th turbine in M turbine；
Air side entrance is connect with the output end of the L-1 turbine；Wherein, L is the positive integer more than 1 and no more than M；M second is changed
The air side entrance of the 1st the second heat exchanger 16 in hot device is connect with the output end of the second storage tank 15, and air side outlet is a with M
The input terminal of the 1st turbine 17 in turbine connects；The conduction oil side outlet of 1st the second heat exchanger 16 and third storage tank 21
Input terminal connects, and the conduction oil side entrance of the second heat exchanger of m-th 18 is connect with the low temperature side outlet of heat-storing device 23；First follows
Low temperature side entrance of the ring pump 22 for the first conduction oil in third storage tank 21 to be pumped into heat-storing device 23；Heat-storing device 23 is used for
The temperature of the first conduction oil is improved by the thermal energy of storage, and is exported to the second heat exchanger of m-th 18 by low temperature side outlet.
Second heat exchanger includes air side entrance, air side outlet, conduction oil side entrance and conduction oil side outlet, and first leads
Deep fat enters the second heat exchanger by conduction oil side entrance, and pressure-air enters the second heat exchanger by air side entrance, and first leads
Deep fat and pressure-air are in carrying out heat exchange in the second heat exchanger so that the mode that thermal energy is led to heat transfer by the first conduction oil passes
It transports in pressure-air.The number of second heat exchanger is identical as the number of turbine, with reference to figure 3, the height exported by the second storage tank 15
Pressure air inputs the 1st the second heat exchanger 16 by the air side entrance of the 1st the second heat exchanger 16, is carried out with the first conduction oil
Heat exchange, pressure-air temperature increase, and the pressure-air after temperature increases is input to the 1st by the input terminal of the 1st turbine 17
A turbine, by partial pressure can and thermal energy be converted to mechanical energy, after exported to the 2nd second by the output end of the 1st turbine
The air side entrance of heat exchanger carries out heat exchange with the first conduction oil, and the air side outlet using the 2nd the second heat exchanger is defeated
Go out to the input terminal of the 2nd turbine to carry out the conversion of thermal energy and mechanical energy, and so on, the air of the second heat exchanger of m-th 18
Pressure-air after side outlet output heating is to the input terminal of m-th turbine 19, and m-th turbine 19 is by the pressure in pressure-air
Can and thermal energy be converted into mechanical energy, and the air after being converted energy by output end is expelled in air.
Circulation has the in M connected in sequence the second heat exchangers, heat-storing device 23, first circulation pump 22 and third storage tank 21
One conduction oil, heat-storing device 23 are stored with the thermal energy of sunlight and pass through after the first conduction oil obtains thermal energy in heat-storing device 23
Thermal energy is transmitted to pressure-air by M the second heat exchangers so that and pressure-air can convert heat energy into mechanical energy by turbine,
The first conduction oil by M heat exchange enters third storage tank 21, first circulation pump 22 will cool down in third storage tank 21 after the
One conduction oil be pumped into again heat-storing device 23 absorb heat, after again with high temperature air carry out heat exchange.
Optionally, the number of the second heat exchanger is two, and the combined layout of multiple second heat exchangers improves heat exchange
Efficiency increases effectively the output work that turbine rotation is pushed when pressure-air expansion by sunshine heat.
Optionally, solar energy storage module can also include：4th storage tank 25 connected in sequence, second circulation pump 26, too
Positive energy heat collector 27；The high temperature side outlet of heat-storing device 23 is connect with the input terminal of the 4th storage tank 25, for that will reduce temperature
Second conduction oil is input to the 4th storage tank 25；Second circulation pump 26 is pumped into solar energy collection for that will reduce the second conduction oil of temperature
Hot device 27；Solar thermal collector 27 is used to collect the heat of sunlight, and increases the second conduction oil by the thermal energy of sunlight
Temperature；The output end of solar thermal collector 27 is connect with the high temperature side entrance of heat-storing device 23, and second for temperature will to be increased
Conduction oil is input to heat-storing device 23, carries out the storage of thermal energy.
Heat-storing device 23 includes four ports, high temperature side entrance, high temperature side outlet, low temperature side entrance and low temperature side outlet.
Second conduction oil is flowed by high temperature side entrance, and the thermal energy obtained by sunlight is transmitted to heat-storing device 23, after gone out by high temperature side
Mouthful；First conduction oil is flowed by low temperature side entrance, obtain heat-storing device 23 thermal energy, after by low temperature side export flow out.Second leads
The temperature of deep fat is higher than the first conduction oil.
Optionally, with reference to figure 3, phase-change heat-storage material 24 can be filled with inside heat-storing device 23, for according to itself not
Same physical state storage energy and output energy.Phase-change heat-storage material 24 is that one kind can be industrial exhaust heat, waste heat and the sun
It can absorb and store, a kind of thermal store that it is released again when needed.Phase-change thermal storage material in heat-storing device 23
Material 24 can absorb or discharge a large amount of heat according to the variation of own physical state.For example, when the second conduction oil is entered by high temperature side
After mouth enters heat-storing device, when phase-change heat-storage material 24 is heated to become liquid from solid-state, it can be absorbed largely from the second conduction oil
Thermal energy, and after the first conduction oil enters heat-storing device by low temperature side entrance, the temperature of phase-change heat-storage material 24 is higher than
One conduction oil, phase-change heat-storage material 24 is to the first conduction oil transporting heat energy so that temperature reduces, when the temperature of phase-change heat-storage material 24
When degree is less than specific threshold, phase-change heat-storage material 24 is converted to solid-state by liquid, discharges a large amount of thermal energy, then the first conduction oil can
Absorb a large amount of thermal energy.
Optionally, phase-change heat-storage material 24 can be erythritol, compound nitrate or hydrated salt, and above-mentioned material is all property
It can preferable heat accumulating.
Optionally, compound nitrate can be the mixture of potassium nitrate, sodium nitrate and ammonium nitrate.Optionally, potassium nitrate,
The quality proportioning of the mixture of sodium nitrate and ammonium nitrate can be 9.5:20:70.5.When potassium nitrate, sodium nitrate and ammonium nitrate
Mixture quality proportioning be 9.5:20:When 70.5, there is good thermal storage performance.Optionally, hydrated salt can be six water
Magnesium chloride.
Under the swabbing action of second circulation pump 26, the second conduction oil absorbs low temperature sunlight by solar thermal collector 27
Thermal energy (150 DEG C or so) temperature increases afterwards, heat-storing device 23 is input to by pipeline, higher second conduction oil of temperature and storage
Phase-change heat-storage material 24 inside thermal 23 carries out heat exchange, and 24 temperature of phase-change heat-storage material increases, and thermal energy storage is risen
Come, the second heat conduction oil temperature reduces, and enters the 4th storage tank 25 by the high temperature side outlet of heat-storing device 23, again by second circulation
The thermal energy that pump 26 is pumped into the absorption sunlight of solar thermal collector 27 so in cycles completes the storage of thermal energy；It is stored up from third
First conduction oil of tank 21, into heat-storing device 23, absorbs phase-change heat-storage material 24 under the swabbing action of first circulation pump 22
The thermal energy of absorption is transmitted to the pressure-air that the second storage tank 15 exports so that high pressure by the thermal energy of storage into the second heat exchanger
Air expansion converts heat energy into mechanical energy, and rear first heat conduction oil temperature reduces, and heat accumulation dress is pumped into again by first circulation pump 22
23 absorption thermal energy are set, the exothermic process of heat-storing device 23 is completed.
In the present embodiment, compressed air energy storage technology and solar energy storage technology organically blend, and solve because natural gas is used
There is serious inhomogeneities and differential pressure power generation power caused to be difficult to stablize output in amount, meeting downstream natural gas user pressure
Under the premise of power demand, it ensure that generating equipment is safely and steadily run.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above example to this
Invention is described in further detail, but the present invention is not limited only to above example, is not departing from present inventive concept
In the case of, can also include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (11)
1. a kind of natural gas pressure difference drives electricity generation system, which is characterized in that including：Pressure differential module, power generation drive module and
Generator；
The input terminal of the pressure differential module is connect with high pressure line, and output end is connect with low-pressure line, for by described
It is low pressure natural gas that high-pressure natural gas is depressured by the Natural gas expander in pressure differential module；The Natural gas expander and institute
The first input end connection for stating power generation drive module, for providing pressure energy for the power generation drive module；
Second input terminal of the power generation drive module accesses air, for the air to be compressed into height by the pressure energy
Press air；First output end of the power generation drive module is connect with the generator, for the pressure by the pressure-air
Power can be with generator rotation described in heat-driven；The second output terminal of the power generation drive module connects with the pressure differential module
It connects, heats up for the low pressure natural gas for the thermal energy by the pressure-air.
2. natural gas pressure difference according to claim 1 drives electricity generation system, which is characterized in that further include：Solar energy storage
Module；
The solar energy storage module is connect with the third input terminal of the power generation drive module, for being carried for the pressure-air
For thermal energy.
3. natural gas pressure difference according to claim 1 drives electricity generation system, which is characterized in that the pressure differential module is also
Including：First valve, N number of First Heat Exchanger, the first storage tank and the second valve；First valve, natural gas expansion
Machine, N number of First Heat Exchanger, first storage tank and second valve are sequentially connected with；
The input terminal of first valve is connect with the high pressure line, output end and the low-pressure line of second valve
Connection；
The natural gas side-entrance of the 1st First Heat Exchanger in N number of First Heat Exchanger is defeated with the Natural gas expander
Outlet connects；The natural gas side outlet of n-th First Heat Exchanger is connect with the input terminal of first storage tank, wherein N is just whole
Number.
4. natural gas pressure difference according to claim 3 drives electricity generation system, which is characterized in that the power generation drive module packet
It includes：N number of compressor connected in sequence, the second storage tank, M turbine；
N number of compressor is coaxially disposed with the Natural gas expander；
The input terminal of k-th of compressor in N number of compressor and k-th first heat exchange in N number of First Heat Exchanger
The air side outlet of device connects, and the output end of -1 compressor of kth is connect with the air side entrance of k-th of First Heat Exchanger；Its
In, N is positive integer, and k is the positive integer more than 1 and no more than N；
The input terminal of 1st compressor is connect with the air side outlet of the 1st First Heat Exchanger；1st First Heat Exchanger
Air side entrance pass through first filter and air communication；The input of the output end of n-th compressor and second storage tank
End connection；
The M turbine and the generator coaxle are arranged, for by the pressure-air pressure energy and thermal energy be converted into
The output end of mechanical energy, the m-th turbine in the M turbine is connected with external environment air；Wherein, M is positive integer.
5. natural gas pressure difference according to claim 4 drives electricity generation system, which is characterized in that further include solar energy storage mould
Block, the solar energy storage module include：M connected in sequence the second heat exchangers, heat-storing device, first circulation pump and third storage
Tank；
The input of the air side outlet and the l-th turbine in M turbine of the second heat exchanger of l-th in M the second heat exchangers
End connection；Air side entrance is connect with the output end of the L-1 turbine；Wherein, L is the positive integer more than 1 and no more than M；
The air side entrance of the 1st the second heat exchanger in M the second heat exchangers is connect with the output end of second storage tank, empty
Gas side outlet is connect with the input terminal of the 1st turbine in M turbine；
The conduction oil side outlet of 1st second heat exchanger is connect with the input terminal of the third storage tank, and m-th second exchanges heat
The conduction oil side entrance of device is connect with the low temperature side outlet of the heat-storing device；
The first circulation pump enters for the first conduction oil in the third storage tank to be pumped into the low temperature side of the heat-storing device
Mouthful；The heat-storing device is used to improve the temperature of first conduction oil by the heat stored, and is gone out by the low temperature side
Mouth is exported to the second heat exchanger of the m-th.
6. natural gas pressure difference according to claim 5 drives electricity generation system, which is characterized in that the solar energy storage module
Further include：4th storage tank connected in sequence, second circulation pump, solar thermal collector；
The high temperature side outlet of the heat-storing device is connect with the input terminal of the 4th storage tank, and second for that will reduce temperature is led
Deep fat is input to the 4th storage tank；
The second circulation pump by second conduction oil for reducing temperature for being pumped into the solar thermal collector；
The solar thermal collector is used to collect the heat of sunlight, and the temperature of second conduction oil is improved by the heat
Degree；
The output end of the solar thermal collector is connect with the high temperature side entrance of the heat-storing device, the institute for that will improve temperature
It states the second conduction oil and is input to the heat-storing device, carry out the storage of heat.
7. natural gas pressure difference according to claim 6 drives electricity generation system, it is characterised in that：
Phase-change heat-storage material is filled with inside the heat-storing device, for according to itself different physical state storage energy and defeated
Go out energy.
8. natural gas pressure difference according to claim 7 drives electricity generation system, it is characterised in that：
The phase-change heat-storage material is erythritol, compound nitrate or hydrated salt.
9. natural gas pressure difference according to claim 8 drives electricity generation system, it is characterised in that：
The compound nitrate is the mixture of potassium nitrate, sodium nitrate and ammonium nitrate.
10. natural gas pressure difference according to claim 9 drives electricity generation system, it is characterised in that：The potassium nitrate, sodium nitrate
And the quality proportioning of the mixture of ammonium nitrate is 9.5:20:70.5.
11. natural gas pressure difference according to claim 8 drives electricity generation system, it is characterised in that：The hydrated salt is six water
Magnesium chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455536.0A CN108757056A (en) | 2018-05-14 | 2018-05-14 | A kind of natural gas pressure difference driving electricity generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810455536.0A CN108757056A (en) | 2018-05-14 | 2018-05-14 | A kind of natural gas pressure difference driving electricity generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757056A true CN108757056A (en) | 2018-11-06 |
Family
ID=64010505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810455536.0A Pending CN108757056A (en) | 2018-05-14 | 2018-05-14 | A kind of natural gas pressure difference driving electricity generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757056A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178961A (en) * | 2020-09-16 | 2021-01-05 | 西安交通大学 | Electricity generation, heat supply, refrigeration and water taking combined system and method based on chemical heat storage |
| CN113623185A (en) * | 2020-05-08 | 2021-11-09 | 东南大学 | Natural gas pressure difference energy compressed air energy storage system |
| CN114704456A (en) * | 2022-03-31 | 2022-07-05 | 西安交通大学 | Multisource heat storage compressed air energy storage system for coupling electric heat storage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016152A (en) * | 2012-12-06 | 2013-04-03 | 中国科学院工程热物理研究所 | Supercritical air energy storage system with novel process |
| CN105003310A (en) * | 2015-07-31 | 2015-10-28 | 北京市燃气集团有限责任公司 | Pressure energy electricity generation compression system of natural gas pipe network |
| CN107489469A (en) * | 2017-08-03 | 2017-12-19 | 中国科学院理化技术研究所 | A kind of low temperature liquid air energy storage systems |
| CN206785443U (en) * | 2017-05-12 | 2017-12-22 | 四川宏达石油天然气工程有限公司 | A kind of high-pressure natural gas cogeneration distributed energy resource system |
| CN107542649A (en) * | 2017-09-25 | 2018-01-05 | 中国科学院理化技术研究所 | Cryogenic high pressure liquid air energy-storage system |
| CN107939654A (en) * | 2017-10-24 | 2018-04-20 | 国家电网公司 | Supply of cooling, heating and electrical powers compressed-air energy-storage system |
-
2018
- 2018-05-14 CN CN201810455536.0A patent/CN108757056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016152A (en) * | 2012-12-06 | 2013-04-03 | 中国科学院工程热物理研究所 | Supercritical air energy storage system with novel process |
| CN105003310A (en) * | 2015-07-31 | 2015-10-28 | 北京市燃气集团有限责任公司 | Pressure energy electricity generation compression system of natural gas pipe network |
| CN206785443U (en) * | 2017-05-12 | 2017-12-22 | 四川宏达石油天然气工程有限公司 | A kind of high-pressure natural gas cogeneration distributed energy resource system |
| CN107489469A (en) * | 2017-08-03 | 2017-12-19 | 中国科学院理化技术研究所 | A kind of low temperature liquid air energy storage systems |
| CN107542649A (en) * | 2017-09-25 | 2018-01-05 | 中国科学院理化技术研究所 | Cryogenic high pressure liquid air energy-storage system |
| CN107939654A (en) * | 2017-10-24 | 2018-04-20 | 国家电网公司 | Supply of cooling, heating and electrical powers compressed-air energy-storage system |
Non-Patent Citations (2)
| Title |
|---|
| 张辉: "《天然气管网压力能集成利用工艺研究》", 《中国知网》 * |
| 王松岭等: "基于天然气管网压力能回收的联合循环构思", 《热能动力工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623185A (en) * | 2020-05-08 | 2021-11-09 | 东南大学 | Natural gas pressure difference energy compressed air energy storage system |
| CN112178961A (en) * | 2020-09-16 | 2021-01-05 | 西安交通大学 | Electricity generation, heat supply, refrigeration and water taking combined system and method based on chemical heat storage |
| CN112178961B (en) * | 2020-09-16 | 2021-07-06 | 西安交通大学 | Electricity generation, heat supply, refrigeration and water taking combined system and method based on chemical heat storage |
| CN114704456A (en) * | 2022-03-31 | 2022-07-05 | 西安交通大学 | Multisource heat storage compressed air energy storage system for coupling electric heat storage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102758690B (en) | Efficient high-pressure liquid air energy storage/release system | |
| CN102758748B (en) | High-pressure liquid air energy storage/release system | |
| JP5508540B2 (en) | Supercritical air energy storage system | |
| CN103016152B (en) | Supercritical air energy storage system with novel process | |
| CN105114138B (en) | A kind of low temperature energy-storing and power-generating system and operation method thereof | |
| CN108533476A (en) | A kind of heat pump supercritical air energy storage system | |
| CN202811078U (en) | Ultra-supercritical air energy storage/release system | |
| CN110259662A (en) | Additional mechanical supercharging reheat-type compressed-air energy-storage system and method based on the hot salt well of twin-well structure | |
| CN106677969A (en) | Energy storage device | |
| CN208870659U (en) | A kind of heat pump compressed-air energy-storage system | |
| CN103791690B (en) | Utilize the liquefied natural gas (LNG) production device and method that pipeline pressure can generate electricity-freeze | |
| CN101245956A (en) | Method for utilizing pressure energy of natural gas | |
| CN105736056B (en) | Liquid air energy storage system | |
| CN108757056A (en) | A kind of natural gas pressure difference driving electricity generation system | |
| CN108640082A (en) | A kind of device and method using metal hydride step recovery waste heat | |
| CN109973362B (en) | Combined type compressed air energy storage system and method based on double-well structure hot salt well | |
| CN114033517B (en) | Geothermal power generation and cold and hot supply system based on carbon dioxide compression energy storage and operation method | |
| CN104481614B (en) | A kind of take carbon dioxide as the distributing-supplying-energy system of working medium | |
| CN208473942U (en) | A kind of cogeneration cooling heating system of compressed-air energy storage coupling photo-thermal power generation | |
| CN202811238U (en) | High-pressure liquid-state air energy storage/release system | |
| CN210396824U (en) | Natural gas residual pressure cold energy power generation cascade utilization system | |
| CN102352777A (en) | Energy-storage and power-generation system and method of reversible single-screw compression expansion machine | |
| CN203615646U (en) | Heat-accumulation type ground source heat pump device | |
| CN202811079U (en) | High-efficiency and high-pressure liquid air energy storage/ release system | |
| CN205779056U (en) | Utilize the compressed-air energy-storage system of cold energy of liquefied natural gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
|
| RJ01 | Rejection of invention patent application after publication |