CN204922095U - Tertiary water seal system of pipeline is retrieved to refinery gas - Google Patents
Tertiary water seal system of pipeline is retrieved to refinery gas Download PDFInfo
- Publication number
- CN204922095U CN204922095U CN201520408549.4U CN201520408549U CN204922095U CN 204922095 U CN204922095 U CN 204922095U CN 201520408549 U CN201520408549 U CN 201520408549U CN 204922095 U CN204922095 U CN 204922095U
- Authority
- CN
- China
- Prior art keywords
- water
- refinery gas
- sealed tank
- communicated
- airtight
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model discloses a tertiary water seal system of pipeline is retrieved to refinery gas, the refinery gas pipeline produces water seal structure, refinery gas house steward's water seal structure and the water seal structure of refinery gas export that refinery gas to export burning refinery gas in -process set gradually the refinery gas entry from the entry, upper reaches air inlet intercommunication is in the bottom of airtight water sealed tank, and the low reaches gas outlet sets up at airtight water sealed tank top. Airtight water sealed tank passes through balance pipe and storage water tank intercommunication by lateral wall partial down to deposit the water storage at storage water tank and airtight water sealed tank bottom, the water storage water level is higher than the balanced mouth of pipe, and the balance pipe open height is higher than bye -pass lower extreme air inlet. The utility model has the advantages of simple structure, normal use that can the emergency control refinery gas ensures pipeline safety. Degeneration -resistant flowing pressure power and release adverse current pressure can be increased automatically, non -maintaining state is in basically. Especially adapted popularization is implemented.
Description
Technical field
The utility model belongs to waste oil Petrochemical Enterprises refinery gas recovery technology field, is specifically related to a kind of tertiary effluent envelope system of refinery gas reclaim line.
Background technique
Cleaner production is the important topic of petrochemical industry energy saving standard.For a long time, the oil-processing enterprises such as domestic and international oil refinery, petrochemical plant, pitch factory, lubricating oil plant is in crude refining course of working, to the usual method adopting high altitude discharge of refinery gas (non-condensible gas) that distilling apparatus, fractionating device Top of Vacuum Tower produce, so both caused a part of energy waste, again severe contamination was caused to surrounding area air ambient.
At present, oil refinery, petrochemical plant mostly adopt water vapor to vacuumize or very narrow two kinds of decompression methods taken out by machinery in production run.A kind of front method Top of Vacuum Tower is distillated gas through condenser and one-level vacuum ejector, enter intercondenser again, enter post-condenser through second steam vacuum ejector again, then the refinery gas at post-condenser top is entered in air, or directly burn.A kind of rear method is then Top of Vacuum Tower is distillated gas enter condenser, directly the extraction of the refinery gas of its napex is entered in air with vacuum pump, or directly burns.Measure according to assay, usually containing the light petroleum hydro carbons that content is very high, heating value is larger in Top of Vacuum Tower tail gas, entered air or aloft burning be a kind of energy waste, direct discharge can cause environmental pollution, to increase economic efficiency and environmental protection all very unfavorable.
Publication number is the recovering device disclosing a kind of refinery atmospheric storage-tank waste gas in China Petrochemical Industry's patent documentation of CN204237054U, use the mode of refinery gas recycling as fuel energy after tank and reprocessing are deposited in employing or sell, require full-blown equipment, system complex, operational administrative cost is high.At present, do not have special effective method can using the refinery gas in oil refining enterprise's production process directly as internal power source safe handling, its reason be refinery gas when can there is the generation of explosive accident without use direct when safe handling.Because refinery gas is the by-product that oil refining generates, the features such as its limits throughput and persistency are not strong, are not suitable as main energy sources.Be difficult to control, easy entrained air sets off an explosion danger.Reclaim at refinery gas in the scheme directly utilized, only dependence arranges valve group and alarm system is used with still can not guaranteeing refinery gas overall safety.And the reasons such as the investigation that must stop production during alarm condition potential safety hazard, can affect generation progress and cause greater loss.
Model utility content
The purpose of this utility model reclaims for current refinery gas directly to utilize the problem that difficulty is very large, provide a kind of can the outlet water seal of safe and reliable recycling refinery gas, substitute and use valve group and alarm scheme, make Security reach 100%.
In order to reach the purpose of this utility model, the technological scheme adopted is: a kind of tertiary effluent of refinery gas reclaim line envelope system, refinery gas pipeline from entrance produce be disposed with refinery gas entrance refinery gas to outlet burning refinery gas process sealing structure for water, refinery gas house steward sealing structure for water and refinery gas outlet sealing structure for water; The sealing structure for water of described refinery gas entrance: be communicated with top pipeline with on the gas outlet of gas-liquid separator, the lower end suction port of top pipeline is communicated with the bottom of the airtight water sealed tank in ingress, the airtight water sealed tank in ingress on the lower part sidewall be communicated with ingress water storage box by balance tube, and water storage is deposited bottom the airtight water sealed tank of ingress water storage box and ingress, meet: without under adverse current barometric information, water storage water level is higher than the balance mouth of pipe, and balance tube open height is higher than pipeline lower end, top suction port; Airtight water sealed tank top, ingress arranges gas manifold and is communicated with main pipe rail; Described refinery gas house steward sealing structure for water: the lower end suction port of main pipe rail Upstream section is communicated with the bottom locating airtight water sealed tank house steward, and main pipe rail tract is communicated in house steward and locates airtight water pot top, forms gas transmission path; The sidewall that house steward locates airtight water sealed tank part is on the lower located water storage box by balance tube with house steward and is communicated with, and locate to deposit water storage bottom water storage box and airtight water sealed tank house steward, meet: without under adverse current barometric information, water storage water level is higher than the balance mouth of pipe, and balance tube open height is higher than the lower end suction port of main pipe rail Upstream section; The sealing structure for water of described refinery gas outlet, the lower end suction port of the bye-pass be communicated with main line is communicated with the bottom of the airtight water sealed tank in outlet port, the airtight water sealed tank in outlet port on the lower part sidewall be communicated with outlet port water storage box by balance tube, and water storage is deposited bottom the airtight water sealed tank of outlet port water storage box and outlet port, meet: without under adverse current barometric information, water storage water level is higher than the balance mouth of pipe, and balance tube open height is higher than bye-pass lower end suction port; Airtight water sealed tank top, outlet port arranges outlet pipe and is communicated with burning pneumatic tube.
Each water storage box arranges water pump or automatic water-dispensing device.Burning pneumatic tube sidewall is communicated with and fills air duct, fills air duct and is communicated with blower export.The balance tube of multiple airtight water sealed tank is summarized in same water storage box, to keep water level balance in multiple sealing water sealed tank.
Beneficial effect: in the utility model, normal conditions are that upstream gas making end air pressure is greater than downstream, force air-flow positive flow to outlet end.But when upstream air delivering pipeline internal air pressure reduces, or because of downstream pneumatic tube internal air pressure increase time, can adverse current be caused, water in airtight water sealed tank is forced to be discharged in water storage box during adverse current, water storage box has suitable volume, can increase the pressure to adverse current after water level increases, and changes countercurrent direction.When outlet pipe internal pressure unexpected excessive time (such as because of burning pneumatic tube in there is explosion among a small circle time cause reverse impulse force), air inversion can be forced to enter in airtight water sealed tank, now water level is lower than the balance mouth of pipe, and counter-current gas will be discharged along balance tube to water tank side.And also some water column in bye-pass, and to rise with countercurrent pressure water column and increase resistance to adverse current, after counter-current gas is discharged from balance tube to water tank, pressure reduces, so water column can not rise to too high position in bye-pass, thus counter-current gas can not be introduced in main pipe rail.Thus guarantee that whole air delivering pipeline is perfectly safe.Without the need to arranging control valve especially, even if there is control valve, it is also unit of fit.Visible, it is simple that the utility model has structure, can the normal use of safety control refinery gas, guarantees pipeline safety.Automatically can increase anti back-flow pressure and release countercurrent pressure, substantially be in non-maintaining state.Very be applicable to promotion and implementation.
Accompanying drawing explanation
Fig. 1 is the tertiary effluent envelope system schematic of the utility model refinery gas reclaim line.
Fig. 2 is the outlet end sealing structure for water schematic diagram in Fig. 1.
Fig. 3 is the structural representation that Fig. 2 sealing structure for water resists counter-current gas automatically.
Fig. 4 is the structural representation that Fig. 2 sealing structure for water discharges counter-current gas automatically.
Fig. 5 is the main pipe rail sealing structure for water schematic diagram in Fig. 1.
Fig. 6 is the structural representation that Fig. 5 sealing structure for water resists counter-current gas automatically.
Fig. 7 is the structural representation that Fig. 5 sealing structure for water discharges counter-current gas automatically.
Fig. 8 is the entry end sealing structure for water schematic diagram in Fig. 1.
In figure, numbering 1 is main pipe rail, and 1a is main pipe rail Upstream section, and 1b is main pipe rail tract, 2 is bye-pass, and 3a is the airtight water sealed tank in outlet port, and 3b locates airtight water sealed tank for house steward, 3c is the airtight water sealed tank in ingress, and 4 is outlet pipe, and 5 for filling air duct, 6 is burning pneumatic tube, and 7 is balance tube, and 8a is outlet port water storage box, 8b locates water storage box for house steward, and 8c is ingress water storage box, and 9 is top pipeline, 10 is gas-liquid separator, and 11 is gas manifold, and 12 is water main.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the present utility model is described in detail:
See Fig. 1, in the tertiary effluent envelope system of refinery gas reclaim line, refinery gas pipeline from entrance produce be disposed with refinery gas entrance refinery gas to outlet burning refinery gas process sealing structure for water, refinery gas house steward sealing structure for water and refinery gas outlet sealing structure for water.
See Fig. 2, the sealing structure for water of refinery gas outlet comprises the airtight water sealed tank 3a in outlet port and outlet port water storage box 8a and associated pipe.Wherein, main line is communicated with multiple bye-pass 2, and refinery gas is dispersed in each combustion furnace and burns by each bye-pass 2.The lower end suction port of bye-pass 2 is communicated with the bottom of the airtight water sealed tank 3a in outlet port.The sidewall of the airtight water sealed tank 3a in outlet port part is on the lower communicated with outlet port water storage box 8a by balance tube 7, and deposits water storage bottom outlet port water storage box 8a and the airtight water sealed tank 3a in outlet port.Water pump or automatic water-dispensing device can be set on the water storage box 8a of outlet port.
Usually, without under adverse current barometric information, there is the air pressure being greater than outlet pipe 4 in main pipe rail 1, makes refinery gas flow in the airtight water sealed tank 3a in outlet port along main pipe rail 1, bye-pass 2, and enter in outlet pipe 4.
Airtight water sealed tank 3a top, outlet port arranges outlet pipe 4 and is communicated with burning pneumatic tube 6.Burning pneumatic tube 6 sidewall is communicated with and fills air duct 5, fills air duct 5 and is communicated with blower export.
Water storage water level is higher than balance tube 7 mouthfuls, and balance tube 7 open height is higher than bye-pass 2 lower end suction port.
When main pipe rail 1 pressure reduces, or because of outlet pipe 4 pressure increase time, cause adverse current, see Fig. 3, water in the airtight water sealed tank 3a in outlet port is forced to be discharged in the water storage box 8a of outlet port during adverse current, outlet port water storage box 8a has suitable volume, can increase the pressure to adverse current after water level increases, and changes countercurrent direction.This process automatically resists counter-current gas.
When cause because of a variety of causes outlet pipe 4 internal pressure unexpected excessive time (such as because of burning pneumatic tube 6 in there is explosion among a small circle time cause reverse impulse force), air inversion can be forced to enter in the airtight water sealed tank 3a in outlet port, see Fig. 4, now water level is lower than balance tube 7 mouthfuls, and counter-current gas will be discharged along balance tube 7 to water tank side.This process automatically discharges counter-current gas.
But from start to finish, some water column in bye-pass 2, and can rise with countercurrent pressure water column and increase resistance to adverse current.When occurring that in outlet pipe 4, adverse current air pressure is excessive when counter-current gas (automatically release), counter-current gas discharges from balance tube 7 to water tank after pressure reduction, so water column can not rise to too high position in bye-pass 2, thus counter-current gas can not be introduced in main pipe rail 1.Thus guarantee that outlet pipe 4 safety and main pipe rail 1 are perfectly safe.
See Fig. 5, house steward's sealing structure for water of refinery gas reclaim line comprises house steward and locates airtight water sealed tank 3b and house steward locates water storage box 8b and main pipe rail.Wherein, main line is divided into Upstream section and tract.Main pipe rail Upstream section 1a comprises horizontal component and vertical part, and the lower end suction port of vertical part is communicated with the bottom locating airtight water sealed tank 3b house steward.The sidewall that house steward locates airtight water sealed tank 3b part is on the lower located water storage box 8b by balance tube 7 with house steward and is communicated with, and locates water storage box 8b and house steward locates to deposit water storage bottom airtight water sealed tank 3b house steward.Can locate water storage box 8b to be arranged water pump or automatic water-dispensing device house steward.
Usually, without under adverse current barometric information, the total refinery gas of main pipe rail is in forward flow state, makes refinery gas locate along main pipe rail Upstream section 1a to house steward to flow in airtight water sealed tank 3b, and enters in main pipe rail tract 1b.
Water storage water level is higher than balance tube 7 mouthfuls, and balance tube 7 open height is higher than main pipe rail Upstream section 1a lower end suction port.
When because of refinery gas for unsaturated vapor cause main pipe rail Upstream section 1a pressure reduce time, or because of main pipe rail tract 1b pressure increase time, cause adverse current.See Fig. 6, force house steward to locate water in airtight water sealed tank 3b during adverse current and locate to discharge in water storage box 8b to house steward, house steward locates water storage box 8b suitable volume, can increase the pressure to adverse current after water level increases, and changes countercurrent direction.This process automatically resists counter-current gas.
See Fig. 7, when cause because of a variety of causes main pipe rail tract 1b internal pressure unexpected excessive time, air inversion can be forced to enter house steward and locate in airtight water sealed tank 3b, now water level is lower than balance tube 7 mouthfuls, and counter-current gas will be discharged along balance tube 7 to water tank side.This process automatically discharges counter-current gas.
But from start to finish, some water column of vertical part of main pipe rail Upstream section 1a, and can rise with countercurrent pressure water column and increase resistance to adverse current.When occurring that in main pipe rail tract 1b, adverse current air pressure is excessive (automatically during release counter-current gas), counter-current gas discharge from balance tube 7 to water tank after pressure reduce, so water column can not rise to too high position in main pipe rail Upstream section 1a, thus counter-current gas can not be introduced the horizontal component of main pipe rail.Thus guarantee being perfectly safe of main pipe rail tract 1b safety and main pipe rail Upstream section 1a.
See Fig. 8, the outlet sealing structure for water of refinery gas reclaim line comprises the airtight water sealed tank 3c in ingress and ingress water storage box 8c and associated pipe.Wherein, main line is communicated with multiple bye-pass 2, and refinery gas is dispersed in each combustion furnace and burns by each bye-pass 2.The lower end suction port of bye-pass 2 is communicated with the bottom of the airtight water sealed tank 3c in ingress.The sidewall of the airtight water sealed tank 3c in ingress part is on the lower communicated with ingress water storage box 8c by balance tube 7, and deposits water storage bottom ingress water storage box 8c and the airtight water sealed tank 3c in ingress.Water pump or automatic water-dispensing device can be set on the water storage box 8c of ingress.
Usually, without under adverse current barometric information, there is the air pressure being greater than outlet pipe 4 in main pipe rail 1, makes refinery gas flow in the airtight water sealed tank 3c in ingress along main pipe rail 1, bye-pass 2, and enter in outlet pipe 4.
Airtight water sealed tank 3c top, ingress arranges outlet pipe 4 and is communicated with burning pneumatic tube 6.Burning pneumatic tube 6 sidewall is communicated with and fills air duct 5, fills air duct 5 and is communicated with blower export.
Water storage water level is higher than balance tube 7 mouthfuls, and balance tube 7 open height is higher than bye-pass 2 lower end suction port.
When main pipe rail 1 pressure reduce, or because of outlet pipe 4 pressure increase time, cause adverse current, water in the airtight water sealed tank 3c in ingress is forced to be discharged in the water storage box 8c of ingress during adverse current, ingress water storage box 8c has suitable volume, can increase the pressure to adverse current after water level increases, and changes countercurrent direction.This process automatically resists counter-current gas.
When cause because of a variety of causes outlet pipe 4 internal pressure unexpected excessive time (such as because of burning pneumatic tube 6 in there is explosion among a small circle time cause reverse impulse force), can force in the airtight water sealed tank 3c of air inversion ingress, now water level is lower than balance tube 7 mouthfuls, and counter-current gas will be discharged along balance tube 7 to water tank side.This process automatically discharges counter-current gas.
But from start to finish, some water column in bye-pass 2, and can rise with countercurrent pressure water column and increase resistance to adverse current.When occurring that in outlet pipe 4, adverse current air pressure is excessive when counter-current gas (automatically release), counter-current gas discharges from balance tube 7 to water tank after pressure reduction, so water column can not rise to too high position in bye-pass 2, thus counter-current gas can not be introduced in main pipe rail 1.Thus guarantee that outlet pipe 4 safety and main pipe rail 1 are perfectly safe.
Adopt such scheme, without the need to arranging control valve especially, but control valve can be with the use of.Above-mentioned automatic increase anti back-flow pressure and release countercurrent pressure, be substantially in non-maintaining state, be very applicable to promotion and implementation.
Claims (3)
1. the tertiary effluent envelope system of a refinery gas reclaim line, it is characterized in that, refinery gas pipeline produces from entrance the sealing structure for water being disposed with the outlet of the sealing structure for water of refinery gas entrance, the sealing structure for water of refinery gas house steward and refinery gas refinery gas to the process of outlet burning refinery gas; The sealing structure for water of described refinery gas entrance: be communicated with top pipeline on the gas outlet of gas-liquid separator, the lower end suction port of top pipeline is communicated with the bottom of the airtight water sealed tank in ingress, the airtight water sealed tank in ingress on the lower part sidewall be communicated with ingress water storage box by balance tube, and water storage is deposited bottom the airtight water sealed tank of ingress water storage box and ingress, meet: without under adverse current barometric information, water storage water level is higher than the balance mouth of pipe, and balance tube open height is higher than pipeline lower end, top suction port; Airtight water sealed tank top, ingress arranges gas manifold and is communicated with main pipe rail; The sealing structure for water of described refinery gas house steward: the lower end suction port of main pipe rail Upstream section is communicated with the bottom locating airtight water sealed tank house steward, and main pipe rail tract is communicated in house steward and locates airtight water sealed tank top, forms gas transmission path; The sidewall that house steward locates airtight water sealed tank part is on the lower located water storage box by balance tube with house steward and is communicated with, and locate to deposit water storage bottom water storage box and airtight water sealed tank house steward, meet: without under adverse current barometric information, water storage water level is higher than the balance mouth of pipe, and balance tube open height is higher than the lower end suction port of main pipe rail Upstream section; The sealing structure for water of described refinery gas outlet: the lower end suction port of the bye-pass be communicated with main line is communicated with the bottom of the airtight water sealed tank in outlet port, the airtight water sealed tank in outlet port on the lower part sidewall be communicated with outlet port water storage box by balance tube, and water storage is deposited bottom the airtight water sealed tank of outlet port water storage box and outlet port, meet: without under adverse current barometric information, water storage water level is higher than the balance mouth of pipe, and balance tube open height is higher than bye-pass lower end suction port; Airtight water sealed tank top, outlet port arranges outlet pipe and is communicated with burning pneumatic tube.
2. the tertiary effluent envelope system of refinery gas reclaim line according to claim 1, is characterized in that, each water storage box arranges water pump or automatic water-dispensing device.
3. the tertiary effluent envelope system of refinery gas reclaim line according to claim 1, is characterized in that, burning pneumatic tube sidewall is communicated with and fills air duct, fills air duct and is communicated with blower export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408549.4U CN204922095U (en) | 2015-06-15 | 2015-06-15 | Tertiary water seal system of pipeline is retrieved to refinery gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408549.4U CN204922095U (en) | 2015-06-15 | 2015-06-15 | Tertiary water seal system of pipeline is retrieved to refinery gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922095U true CN204922095U (en) | 2015-12-30 |
Family
ID=54971224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520408549.4U Withdrawn - After Issue CN204922095U (en) | 2015-06-15 | 2015-06-15 | Tertiary water seal system of pipeline is retrieved to refinery gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879535A (en) * | 2015-06-15 | 2015-09-02 | 洛阳德正废弃资源再利用有限公司 | Three-level water seal system for refinery gas recycling pipeline |
| CN105485379A (en) * | 2016-01-18 | 2016-04-13 | 四川理工学院 | Garbage microwave cracking overpressure protection liquid seal device |
-
2015
- 2015-06-15 CN CN201520408549.4U patent/CN204922095U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879535A (en) * | 2015-06-15 | 2015-09-02 | 洛阳德正废弃资源再利用有限公司 | Three-level water seal system for refinery gas recycling pipeline |
| CN104879535B (en) * | 2015-06-15 | 2018-01-05 | 洛阳德正废弃资源再利用有限公司 | The three-level seal water system of refinery gas recovery pipe |
| CN105485379A (en) * | 2016-01-18 | 2016-04-13 | 四川理工学院 | Garbage microwave cracking overpressure protection liquid seal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203727650U (en) | Fuel supply system of unmanned plane | |
| CN204922095U (en) | Tertiary water seal system of pipeline is retrieved to refinery gas | |
| CN201696679U (en) | Safe water seal for conveying combustible gas | |
| CN204403675U (en) | For the waste gas pipeline of environmental protection equipment | |
| CN204727853U (en) | The outlet sealing structure for water of refinery gas recycling pipeline | |
| CN205940193U (en) | Gas -liquid reposition of redundant personnel negative micro -pressure steam condensate water recovery system | |
| CN204275759U (en) | Protected against explosion absorption adds absorption device for recovering oil and gas | |
| CN205877288U (en) | Waste oil of keeping apart can be realized and preceding water seal arrangement of alembic is retrieved | |
| CN104879535A (en) | Three-level water seal system for refinery gas recycling pipeline | |
| CN203925685U (en) | A kind of vehicle exhaust processing system | |
| CN204985863U (en) | Entry water seal structure of pipeline is retrieved to refinery gas | |
| CN202546730U (en) | Atmospheric deoxidation system capable of recovering exhaust steam | |
| CN205154131U (en) | Liquid recovery system is taken off in degritting of modularization natural gas | |
| CN204752630U (en) | House steward's water seal structure of pipeline is retrieved to refinery gas | |
| CN102328997A (en) | Methane gas recovering system for anaerobic reactor | |
| CN208995432U (en) | A kind of device using raw coke oven gas recycling coal tar | |
| CN202136819U (en) | Recovery unit for recovering alcohol dissolved in propolis | |
| CN203256224U (en) | Biomass gas refining vaporizer | |
| CN203741075U (en) | Novel high-efficiency degasser device | |
| CN204958837U (en) | Prevent superpressure gas making system | |
| CN103131492A (en) | Device and method for condensing and separating water in methane | |
| CN203036733U (en) | Unpowered water and vapor separation energy-saving conveying device | |
| CN204522634U (en) | Oil smoke recovery device in high-strength high-modulus polyethylene fiber production process | |
| CN105972263B (en) | The waste oil that isolation can be achieved recycles water seal arrangement before alembic | |
| CN204433496U (en) | Wine storage tank wine vapour-recovery unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20180105 |