CN105044285B - A kind of method of gas hydrates breaker and broken gas hydrates - Google Patents
A kind of method of gas hydrates breaker and broken gas hydrates Download PDFInfo
- Publication number
- CN105044285B CN105044285B CN201510415165.XA CN201510415165A CN105044285B CN 105044285 B CN105044285 B CN 105044285B CN 201510415165 A CN201510415165 A CN 201510415165A CN 105044285 B CN105044285 B CN 105044285B
- Authority
- CN
- China
- Prior art keywords
- reactor
- breaker
- gas hydrates
- gas
- hydraulic
- 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.)
- Expired - Fee Related
Links
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a kind of method of gas hydrates breaker and broken gas hydrates, the gas hydrates breaker includes：Reactor；Electric heater unit is enclosed with the outer wall of the reactor；The reactor has liquid phase entrance, liquid-phase outlet, gas phase entrance, gaseous phase outlet and pressure tappings；Stir breaker, including the waterproof machine being fixed in the reactor, the retractor device being connected with the waterproof machine, the hydraulic means for driving the retractor device flexible, the cutting knife being connected with the retractor device.The beneficial effects of the invention are as follows：There is provided the device for the digging for being easy to study ocean gas hydrate, gas hydrate slurry body is provided for the defeated experiment of gas hydrates pipe, it is convenient that gas hydrates are studied.
Description
Technical field
The present invention relates to the technical field of exploiting ocean natural gas hydrates, more particularly to a kind of gas hydrates
The method of breaker and broken gas hydrates.
Background technology
Gas hydrates are water and the hydrocarbon compound of natural gas low molecule amount are formed under the conditions of high pressure low temperature one
Kind of cage modle crystalline compounds, with energy density is high, after burning the features such as noresidue, are acknowledged as new green power.At present,
Gas hydrates in nature are based on gas hydrates, and the overwhelming majority is contained in seabed, exploitation in solid form
Difficulty is very big.Laboratory experiment is used for the exploitation for exploring ocean gas hydrate, generally by water and natural gas in high pressure low temperature (P
=10MPa, T=2 DEG C) reactor in synthesized hydrate.Gas hydrates sample synthesized in reactor after with solid-state shape
Formula is stored in a kettle., and is bonded together with reactor wall.How it to be crushed under conditions of high pressure low temperature, opened
Ocean gas hydrate digging simulated experiment is opened up, gas hydrate slurry body is provided for the defeated experiment of gas hydrates pipe, is
The technical barrier of sea bed gas hydrate solid state fluidizing exploitation simulated experiment.
The content of the invention
The invention aims to overcoming the deficiencies in the prior art there is provided a kind of gas hydrates breaker and
The method of broken gas hydrates.
The present invention is realized by above technical scheme：
The invention provides a kind of gas hydrates breaker, the gas hydrates breaker includes：Reaction
Kettle；Electric heater unit is enclosed with the outer wall of the reactor；There is the reactor liquid phase entrance, liquid-phase outlet, gas phase to enter
Mouth, gaseous phase outlet and pressure tappings；
Breaker, including the waterproof machine being fixed in the reactor are stirred, with stretching that the waterproof machine is connected
Compression apparatus, the hydraulic means for driving the retractor device flexible, the cutting knife being connected with the retractor device.
It is preferred that, the output shaft of the waterproof machine is connected by shaft coupling with the retractor device.
It is preferred that, the retractor device includes the spline housing being connected with the shaft coupling and is sleeved in the spline housing
Splined shaft；And the hydraulic means includes the hydraulic cylinder inner tube being connected with the waterproof machine, consolidates with the hydraulic cylinder inner tube
Surely the hydraulic cylinder outer tube connected, the piston in the hydraulic cylinder outer tube, and the splined shaft are fixedly connected with the piston.
It is preferred that, in addition to bottom plate, the bottom plate supports the reactor by supporting leg.
It is preferred that, the reactor includes cylinder, is fixed on the flat cover at the top of the cylinder, and be fixed on the cylinder
The low head of bottom；Wherein, the liquid-phase outlet and pressure tappings are arranged on the cylinder；The liquid phase entrance and the gas phase
Entrance is arranged on the low head；The gas phase entrance is arranged on the flat cover.
It is preferred that, it is provided with suspension ring on the flat cover.
It is preferred that, the stirring breaker is fixed on the flat cover.
Present invention also offers a kind of method that gas hydrates are crushed using above-mentioned gas hydrates breaker,
Characterized in that, this method includes：
(1) after gas hydrates compound experiment terminates, the liquid phase entrance, liquid-phase outlet, gas phase for closing reactor enter
Mouth, gaseous phase outlet, it is ensured that hydrate is in cryogenic high pressure environment in kettle, start the electrical heating dress of reactor outside wall surface winding
Put, thermally decomposed the hydrate on reactor internal face, be not adhered by with reactor internal face, judge solid-state hydrate and anti-
Kettle internal face is answered to stop heating after departing from；
(2) the stirring breaker in reactor is started, control cutting knife moves down into solid-state hydrate surface, starts anti-water power
Machine, cutting knife rotary cutting, crushing operation starts；
(3) crushing operation simultaneously, opens reactor bottom liquid phase entrance, water is pumped into reactor, makes the water after crushing
Compound exists with slurry form, while opening the liquid-phase outlet of reactor, crushes the hydrate slurry output formed.
The beneficial effects of the invention are as follows：It is natural there is provided the device for the digging for being easy to study ocean gas hydrate
The defeated experiment of gas hydrate pipe provides gas hydrate slurry body, convenient that gas hydrates are studied.
Brief description of the drawings
Fig. 1 is the structural representation of gas hydrates breaker provided in an embodiment of the present invention；
Fig. 2 is the structural representation of stirring breaker provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Refer to Fig. 1 and Fig. 2, Fig. 1 be the gas hydrates breaker that the present invention is provided structural representation, Fig. 2
It is the structural representation of stirring breaker provided in an embodiment of the present invention.
The embodiments of the invention provide a kind of gas hydrates breaker, the gas hydrates breaker bag
Include：Reactor；Electric heater unit is enclosed with the outer wall of reactor；There is reactor liquid phase entrance d, liquid-phase outlet b, gas phase to enter
Mouth c, gaseous phase outlet a and pressure tappings e, f；
Breaker 8, including the waterproof machine 101 being fixed in reactor are stirred, what is be connected with waterproof machine 101 is flexible
Device, the flexible hydraulic means of driving retractor device, the cutting knife 116 being connected with retractor device.
In the above-described embodiments, by using electric heater unit so that the hydrate on reactor internal face is thermally decomposed,
It is not adhered by, and solid-state hydrate is cut with reactor internal face by stirring breaker, meanwhile, entered by liquid phase
Mouth adding liquid into reactor, forms gas hydrate slurry body and conveniently gas hydrates is studied.
For the understanding to gas hydrates breaker structure provided in an embodiment of the present invention and operation principle, under
It is described in detail with reference to accompanying drawing 1 and accompanying drawing 2 for face.
As shown in figure 1, reactor main body structure cylinder 9, is fixed on the flat cover 2 at the top of cylinder 9, and it is fixed on cylinder 9
The low head 17 of bottom；Wherein, liquid-phase outlet b and pressure tappings e, f are arranged on cylinder 9；Liquid phase entrance d and gas phase entrance c are set
Put in low head 17；Gas phase entrance a is arranged on flat cover.Specifically, its agent structure is by flat cover 2, flange 7, cylinder 9 and lower envelope
First 17 are constituted, and suspension ring 1 are set on flat cover 2, and gaseous phase outlet a, hydraulic pressure control are provided with flat cover 2, flat cover 2 for lifting and quickly opening
Donsole g, h, flange 7 be connected with flat cover 2 by bolt 3, nut 4, flat shim 5, and sealed by oval ring 6.Cylinder
Pressure port e, f and liquid-phase outlet b are provided with body 9, adapter 10 is connected with flange 12 by bolt 13, nut 14, pad 15, flange
Junction is added with oval ring 11, and the slurry after crushing is discharged by liquid-phase outlet b.Low head 17 on be provided with gas phase entrance c and liquid
At phase entrance d, the access gas phase entrance of air inlet tube 18 c, water inlet adapter 19 is connected by bolt 24, nut 25, pad 26 and flange
Connect, flange connections are supported added with oval ring 23, reactor by supporting leg 20, backing plate 16 is lined between supporting leg 20 and low head 17, prop up
The lower end of leg 20 is welded with bottom plate 21.Stirring breaker 8 is connected by flexible pipe 27 and flexible pipe 28 with flat cover hydraulic control mouthful g, h.
As shown in Fig. 2 stirring breaker 8 is fixed on flat cover 2.Wherein, the output shaft of waterproof machine 101 passes through shaft coupling
Device 103 is connected with retractor device.Retractor device includes the spline housing 108 being connected with shaft coupling 103 and is sleeved on spline housing 108
Interior splined shaft 109；And hydraulic means includes the hydraulic cylinder inner tube 102 that is connected with waterproof machine 101, with hydraulic cylinder inner tube 102
The hydraulic cylinder outer tube 104 being fixedly connected, the piston 107 in hydraulic cylinder outer tube 104, and splined shaft 109 are fixed with piston 107
Connection.Be driven specifically, stirring breaker 8 should include hydraulic-driven and waterproof machine 101, waterproof machine 101 pass through connection
Axle device 103 drives spline housing 108 to rotate, and spline housing 108 is connected to drive splined shaft 109 with splined shaft 109 by spline pair
Rotary motion, splined shaft 109 is multi-diameter shaft, and cutting knife 116 is loaded at splined shaft ladder, and passes through pad 117, locking nut 118
Fixed, waterproof machine 101 starts, and drives cutting knife 116 to do rotary cutting motion.Hydraulic cylinder inner tube 102 is connected with waterproof machine 101
Fixed, hydraulic cylinder inner tube 102 and hydraulic cylinder outer tube 104, bottom end cover 110 constitute hydraulic cylinder, the wall upper and lower side of hydraulic cylinder outer tube 104
Have a hydraulic pressure hole i and hydraulic pressure hole j, piston 107 in the presence of hydraulic-driven power in hydraulic cylinder axially movable, and band
Dynamic lower support lid 113, bearing 112 are moved together, and bearing 112 promotes power transmission to cover 114 locking nuts 115 and moved together, final band
Dynamic splined shaft 109 is axially moved, so as to realize the axial movement of cutting knife 116.Outside piston 107 and piston cylinder inner tube 103, piston cylinder
Sealed between pipe 104, bottom end cover 111 by O-ring seal 105,106,110.
Present invention also offers a kind of method that gas hydrates are crushed using above-mentioned gas hydrates breaker,
Characterized in that, this method includes：
(1) after gas hydrates compound experiment terminates, the liquid phase entrance, liquid-phase outlet, gas phase for closing reactor enter
Mouth, gaseous phase outlet, it is ensured that hydrate is in cryogenic high pressure environment in kettle, start the electrical heating dress of reactor outside wall surface winding
Put, thermally decomposed the hydrate on reactor internal face, be not adhered by with reactor internal face, judge solid-state hydrate and anti-
Kettle internal face is answered to stop heating after departing from；
(2) the stirring breaker in reactor is started, control cutting knife moves down into solid-state hydrate surface, starts anti-water power
Machine, cutting knife rotary cutting, crushing operation starts；
(3) crushing operation simultaneously, opens reactor bottom liquid phase entrance, water is pumped into reactor, makes the water after crushing
Compound exists with slurry form, while opening the liquid-phase outlet of reactor, crushes the hydrate slurry output formed.
The beneficial effects of the invention are as follows：It is natural there is provided the device for the digging for being easy to study ocean gas hydrate
The defeated experiment of gas hydrate pipe provides gas hydrate slurry body, convenient that gas hydrates are studied.
In specific works, ocean gas hydrate crushing experiment technological process：
Broken pre-treatment job：
Broken pre-treatment job can depart from hydrate and reactor inwall, it is ensured that crushing operation is smoothed out.Tool
Gymnastics is made：Reactor outer wall is enclosed with electrical heating copper pipe (electric heater unit), after lanthanum chloride hydrate experiment terminates, closes reaction
Kettle gas phase entrance c, gaseous phase outlet a, liquid phase entrance d, liquid-phase outlet b, start electrical heating copper pipe, and moment is carried out to reactor kettle wall
Local heating, its object is to thermally decomposed the hydrate on kettle internal face, it is ensured that solid-state hydrate no longer with reactor
Wall is bonded, and measures reacting kettle inner pressure by reactor pressure port e, f, it is ensured that stable conditions in reactor, judges that solid-state is hydrated
Thing stops heating after with reactor internal face departing from.
Hydrate crushing operation：
Hydrate crushing operation is mainly completed by stirring crushing mechanism 8.Stirring crushing mechanism 8 includes hydraulic control and motor
Double control is controlled, starts liquid in hydraulic system, hydraulic control circuit and hydraulic pressure hole j, flexible pipe 27, hydraulic pressure control is flowed through in piston cylinder
Hydraulic cylinder top is returned to by hydraulic control hole g, flexible pipe 28, hydraulic pressure hole i after the outer hydraulic control circuit of drilling h, kettle, so as to promote work
Plug 107, lower support lid 113, bearing 112, power transmission set 113, locking nut 114 are moved downward, and drive splined shaft 109 in flower eventually
Moved axially downwards in key set 108, cutting knife 116 is moved axially downwards.When cutting knife 116 reaches hydrate solid state surface, open
Dynamic waterproof machine 101, motor 101 drives shaft coupling 103, spline housing 108, the rotary motion of splined shaft 109, is fixed on splined shaft
Cutting knife 116 on 109 does rotary cutting motion therewith, and hydrate crushing operation starts.
Hydrate slurry output operation：
Crushing operation starts simultaneously, to open fluid inlet d, starts plunger pump, to reactor bottom water filling, while opening liquid
Mutually outlet b, regulation liquid phase import and export choke valve, it is ensured that reacting kettle inner pressure stabilization, stir the continuous operation of breaker 8, crush
Hydrate slurry afterwards is transported to multiphase flow pipeline from liquid-phase outlet b, for being further hydrated the defeated characteristic research of property management.It is broken to make
Industry completes and after the slurry output containing hydrate, stops motor driving, change hydraulic control system loop direction, hydraulic control
In loop liquid by piston cylinder internal upper part after hydraulic control circuit outside hydraulic pressure hole i, flexible pipe 28, hydraulic control hole g, kettle by hydraulic pressure
Control hole h, flexible pipe 27, hydraulic pressure hole j return to cylinder lower, so as to promote piston 107, lower support lid 113, bearing 112, power transmission
Set 113, locking nut 114 are moved upwards, drive splined shaft 109 moved axially upward in spline housing 108 eventually, cutting knife 116
It is moved axially upward, return to original state.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modifications, equivalent substitutions and improvements made within principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of gas hydrates breaker, it is characterised in that including：
Reactor；The reactor includes being fixed with flat cover at the top of cylinder, the cylinder；It is enclosed with the outer wall of the reactor
Electric heater unit；The reactor has liquid phase entrance, liquid-phase outlet, gas phase entrance, gaseous phase outlet and pressure tappings；
Stir breaker, including the waterproof machine being fixed in the reactor, the flexible dress being connected with the waterproof machine
Put, the hydraulic means for driving the retractor device flexible, the cutting knife being connected with the retractor device；
The stirring breaker is fixed on the flat cover；
The output shaft of the waterproof machine is connected by shaft coupling with the retractor device；
The retractor device includes the spline housing being connected with the shaft coupling and the splined shaft being sleeved in the spline housing；And
The hydraulic means includes the hydraulic cylinder inner tube being connected with the waterproof machine, the hydraulic pressure being fixedly connected with the hydraulic cylinder inner tube
Cylinder outer tube, the piston in the hydraulic cylinder outer tube, and the splined shaft are fixedly connected with the piston；
The flat cover is provided with above and below the first hydraulic control mouthful (g) and the second hydraulic control mouthful (h), the hydraulic cylinder outer tube wall
Section offers the first hydraulic pressure hole (i) and the second hydraulic pressure hole (j) respectively, and first hydraulic control mouthful (g) passes through the first flexible pipe
(28) it is connected with the first hydraulic pressure hole (i), second hydraulic control mouthful (h) passes through the second flexible pipe (27) and the second hydraulic pressure hole (j)
Connection.
2. gas hydrates breaker according to claim 1, it is characterised in that also including bottom plate, the bottom plate
The reactor is supported by supporting leg.
3. gas hydrates breaker as claimed in claim 1, it is characterised in that the reactor includes cylinder, Gu
The flat cover at the top of the cylinder is scheduled on, and is fixed on the low head of the cylinder body bottom；Wherein, the liquid-phase outlet and pressure
Mouth is arranged on the cylinder；The liquid phase entrance and the gas phase entrance are arranged on the low head；The gas phase entrance is set
Put on the flat cover.
4. gas hydrates breaker as claimed in claim 3, it is characterised in that be provided with suspension ring on the flat cover.
5. the method that the gas hydrates breaker described in a kind of utilization claim 1 crushes gas hydrates, it is special
Levy and be, this method includes：
(1) after gas hydrates compound experiment terminates, liquid phase entrance, liquid-phase outlet, gas phase entrance, the gas of reactor are closed
Mutually export, it is ensured that hydrate is in cryogenic high pressure environment in kettle, start the electric heater unit of reactor outside wall surface winding, make anti-
Answer the hydrate on kettle internal face to be thermally decomposed, be not adhered by with reactor internal face, judged in solid-state hydrate and reactor
Wall stops heating after departing from；
(2) the stirring breaker in reactor is started, control cutting knife moves down into solid-state hydrate surface, starts waterproof machine,
Cutting knife rotary cutting, crushing operation starts；
(3) crushing operation simultaneously, opens reactor bottom liquid phase entrance, water is pumped into reactor, makes the hydrate after crushing
Exist with slurry form, while opening the liquid-phase outlet of reactor, crush the hydrate slurry output formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415165.XA CN105044285B (en) | 2015-07-15 | 2015-07-15 | A kind of method of gas hydrates breaker and broken gas hydrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510415165.XA CN105044285B (en) | 2015-07-15 | 2015-07-15 | A kind of method of gas hydrates breaker and broken gas hydrates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105044285A CN105044285A (en) | 2015-11-11 |
| CN105044285B true CN105044285B (en) | 2017-07-25 |
Family
ID=54450993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510415165.XA Expired - Fee Related CN105044285B (en) | 2015-07-15 | 2015-07-15 | A kind of method of gas hydrates breaker and broken gas hydrates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105044285B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827754A (en) * | 2018-05-25 | 2018-11-16 | 西南石油大学 | A kind of crushing system for large scale gas hydrates rock sample |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010698A (en) * | 2016-05-06 | 2016-10-12 | 西南石油大学 | Rapid synthesis device for natural gas hydrate |
| CN106840978B (en) * | 2017-01-13 | 2019-06-14 | 西南石油大学 | A kind of abrasive disk type crushing experiment device and method suitable for hydrate particle in pipe |
| CN108005619A (en) * | 2017-04-09 | 2018-05-08 | 杭州云蜂工业设计有限公司 | A kind of seabed combustible ice crushing plant |
| CN106968645B (en) * | 2017-04-09 | 2018-03-13 | 杭州云蜂工业设计有限公司 | A kind of sea bed gas hydrate disintegrating apparatus |
| CN111810096B (en) * | 2020-07-17 | 2022-04-08 | 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995136Y (en) * | 2006-08-30 | 2007-12-26 | 上海迪赛诺医药发展有限公司 | High-shearing micro-powder reactor |
| CN101818635B (en) * | 2010-04-02 | 2012-09-12 | 吉林大学 | Method for exploiting natural gas hydrates by using high-pressure thermal jet |
| CN202506452U (en) * | 2012-04-24 | 2012-10-31 | 都江堰市春盛中药饮片有限公司 | Vertical hammer mill |
| CN204147812U (en) * | 2014-10-24 | 2015-02-11 | 淄博新农基农药化工有限公司 | A kind of pesticide emulsifying machine |
| CN104614149A (en) * | 2015-01-27 | 2015-05-13 | 西南石油大学 | Natural gas hydrate real fresh transportation and experimentation device and method |
-
2015
- 2015-07-15 CN CN201510415165.XA patent/CN105044285B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827754A (en) * | 2018-05-25 | 2018-11-16 | 西南石油大学 | A kind of crushing system for large scale gas hydrates rock sample |
| CN108827754B (en) * | 2018-05-25 | 2020-12-22 | 西南石油大学 | A broken system for jumbo size natural gas hydrate rock specimen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105044285A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105044285B (en) | A kind of method of gas hydrates breaker and broken gas hydrates | |
| WO2010009668A1 (en) | Straw fermentation process and device thereof | |
| US20230304383A1 (en) | Suction cylinder exploitation device and method for marine natural gas hydrates | |
| CN204892035U (en) | A stirring breaker in cauldron for broken experiment of ocean gas hydrate | |
| US20220090585A1 (en) | Compressed gas energy storage system | |
| CN106989958A (en) | A kind of new self-turning-back water sampling device | |
| CN103290883A (en) | Method for improving groundwater recharging efficiency by deaerating recharging water through negative pressure | |
| KR101044770B1 (en) | Device for Continuously Producing Gas Hydrate and Method therefor | |
| KR101806196B1 (en) | Apparatus for forming gas hydrate pellets | |
| CN105865851A (en) | Seabed natural gas collecting device and method using hot water in built-in buoyancy tanks for wall surface heating | |
| CN214916116U (en) | Diazo reaction device for pigment production | |
| CN105804704A (en) | Suspended floating box inner wall heating type seabed natural gas collecting device and method | |
| CN206787859U (en) | A kind of new self-turning-back water sampling device | |
| CN213113003U (en) | Oily sludge low pressure steam pyrolysis device | |
| CN206168038U (en) | A cationic polymer peridium reaction complete sets for water base drilling fluid | |
| CN210434505U (en) | Sealed heating reaction device of lithium hydride reaction kettle | |
| CN216295904U (en) | Medicine adding equipment with good mixing effect | |
| CN206304652U (en) | A kind of conduction oil lubricating grease pressue device | |
| CN109505541A (en) | A kind of addition of drilling fluid, mixture and transportation integration system | |
| CN206473852U (en) | A kind of crystallizing tank in the production for trimethylolpropane | |
| CN206661210U (en) | A kind of liquid accelerator synthesizes agitating device | |
| CN210787159U (en) | High-efficient preparation machine of corrosion inhibitor | |
| CN117942736A (en) | Underground coal-based solid waste CO2Mineralization multi-parameter reaction control device | |
| CN211902396U (en) | Sealing equipment for preparation and production of phosphorus pentachloride | |
| CN220143390U (en) | Shale inhibitor processing storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 Termination date: 20180715 |