CN103343878A - Vacuum pumping device for interlayer of cryogenic insulation cylinder - Google Patents
Vacuum pumping device for interlayer of cryogenic insulation cylinder Download PDFInfo
- Publication number
- CN103343878A CN103343878A CN2013103180196A CN201310318019A CN103343878A CN 103343878 A CN103343878 A CN 103343878A CN 2013103180196 A CN2013103180196 A CN 2013103180196A CN 201310318019 A CN201310318019 A CN 201310318019A CN 103343878 A CN103343878 A CN 103343878A
- Authority
- CN
- China
- Prior art keywords
- interlayer
- communicated
- insulated cylinder
- vacuum pumping
- cryogenic insulated
- 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.)
- Granted
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a vacuum pumping device for an interlayer of a cryogenic insulation cylinder, which belongs to the technical field of cryogenic insulation vacuum. The vacuum pumping device is mainly technically characterized by comprising the cryogenic insulation cylinder, a heating oven, an internal air circulating fan, a combustion machine, a heating branch pipe, an exhaust branch pipe, an internal heating main pipe, an external exhaust main pipe, a nitrogen heating device, a nitrogen displacement valve, a pneumatic flapper valve I, a pneumatic flapper valve II, a diffusion pump, a pneumatic flapper valve III, a rotary vane pump and a Roots pump, wherein the internal air circulating fan is used for introducing heated high-temperature air into the interlayer of the cylinder. The two surfaces of an outer cylinder body and an inner liner are heated simultaneously, so that hydrogen, helium and other low molecular weight gas molecules, water molecules and the like, which are adsorbed in a heat insulation material in the interlayer, can be activated, the gas release speed of the interlayer is enhanced, and the vacuum pumping speed of the interlayer is effectively improved. The vacuum pumping device has the advantages of reasonable structure, safety and convenience in use, high vacuum pumping degree, no re-bounce of vacuum degree, long holding time and the like.
Description
Technical field
The present invention relates to a kind of cryogenic insulated cylinder interlayer vacuum pumping device, belong to Cryo Heat Insulation vacuum technique field, it extensively is adapted to the thermal insulating layer of all kinds of liquefied gas at low temp gas cylinders such as splendid attire LNG Liquefied natural gas, liquid nitrogen, liquid oxygen, liquid hydrogen is vacuumized processing.
Background technique
Cryogenic insulated cylinder has been widely used in all kinds of liquefied gas at low temp such as splendid attire LNG Liquefied natural gas, liquid nitrogen, liquid oxygen, liquid hydrogen at present as the special equipment of transportation, storage liquefied gas at low temp.Cryogenic insulated cylinder generally adopts the vacuum double adiabatic method, Sealed sandwich between the interior outer container is vacuum heat-insulating layer, simultaneously, leak heat in order to reduce radiation, also need between interlayer, to arrange some layers of reflecting screen and thermoinsulation material, layer vacuum is the factor that influences cryogenic insulated cylinder performance most critical, for guaranteeing liquid gas enough storage time in bottle, the degree of vacuum of the adiabatic Sealed sandwich of insulated gas cylinder need be extracted into and be higher than 2 * 10
-2Pa.In the background technique, because the venting of stainless steel material under vacuum of the outer cylinder body of cryogenic insulated cylinder, and the multilayer insulant of filling in the Sealed sandwich mostly is the strong porous medium of air-breathing property greatly, when adopting traditional vacuum pumping device, because all being outer cylinder body to gas cylinder, it heats, can not effectively activate water molecule of low-weight gases molecules such as the hydrogen that adsorbs in the gas cylinder sandwich layer thermal insulating material, helium and absorption etc., cause the pumpdown time of gas cylinder interlayer long, and poor effect.In order to overcome above deficiency, cryogenic insulated cylinder interlayer vacuum pumping device is studied.
Summary of the invention
Technical problem to be solved by this invention is that a kind of cryogenic insulated cylinder interlayer vacuum pumping device will be provided, high temperature air after it will heat feeds the gas cylinder interlayer through the integrated valve of cryogenic insulated cylinder, high temperature air heats two surfaces of cryogenic insulated cylinder outer cylinder body and inner bag simultaneously, be conducive to activate low-weight gases molecules such as the hydrogen that adsorbs in the gas cylinder sandwich layer thermal insulating material, helium and water molecule etc., accelerate the venting speed of thermoinsulation material, effectively improve the vacuum pumping rate of cryogenic insulated cylinder interlayer, and can keep the condition of high vacuum degree of cryogenic insulated cylinder interlayer lastingly.
It is that it comprises that the present invention solves the technological scheme that its technical problem adopts: cryogenic insulated cylinder, heated oven, interior wind circulating fan, burning machine, add hot leg pipe, suction branch, interior heating main, bleed house steward, nitrogen heating equipment, nitrogen replacement valve, Pneumatic baffle valve I, Pneumatic baffle valve II, diffusion pump, Pneumatic baffle valve III, sliding vane rotary pump, Roots pump outward
Burning machine is installed on the upper top of heated oven, and burning machine is by the internal communication of pipeline and heated oven,
The cryogenic insulated cylinder bottleneck is erect the inside that places heated oven up and by frock,
Interior heating main horizontal arrangement is loaded on the inner tip of heated oven,
An end of heating main in interior wind circulating fan is loaded on, the suction port of interior wind circulating fan is communicated with heated oven, and the air outlet of interior wind circulating fan and interior heating main are communicated with,
The upper end that adds hot leg pipe vertically is loaded on interior heating main also and the connection of interior heating main, the lower end that adds hot leg pipe is splicing interface, add that hot leg pipe is communicated in the integrated valve of cryogenic insulated cylinder by splicing interface and the interlayer by integrated valve and cryogenic insulated cylinder is communicated with, what can vertical equidistant many that the quantity correspondence is installed add hot leg pipe on interior heating main according to the quantity that vacuumizes cryogenic insulated cylinder simultaneously
The house steward's horizontal arrangement of bleeding outward is loaded on the top of heated oven outside,
The upper end of suction branch vertically is loaded on the outer house steward that bleeds and also is communicated with the house steward that bleeds outward, the lower end of suction branch is connected in cryogenic insulated cylinder also by vacuum pumping tool equipment and the interlayer of cryogenic insulated cylinder is communicated with, how many house stewards that can bleed outside go up many suction branches of vertical equidistant installation quantity correspondence according to the quantity that vacuumizes cryogenic insulated cylinder simultaneously
The front end air outlet of nitrogen heating equipment is communicated in the house steward that bleeds, and the rear end suction port of nitrogen heating equipment is connected in the nitrogen replacement valve,
The Pneumatic baffle valve I is installed on the pipeline that is communicated with bleed house steward and diffusion pump,
The Pneumatic baffle valve II is installed on the pipeline that is communicated with bleed house steward and sliding vane rotary pump,
The Pneumatic baffle valve III is installed on the connecting pipeline between diffusion pump and the sliding vane rotary pump,
Roots pump is installed on the sliding vane rotary pump rear portion by connecting pipeline.
The present invention compares the beneficial effect that produces with prior art:
1, employing is heated simultaneously to two surfaces of gas cylinder interlayer, even and the high conformity of heating-up temperature, but reach the temperature that the gas cylinder vacuum pumping technique needs within a short period of time, be conducive to activate the sorbent in the gas cylinder interlayer, accelerate the venting speed of material in the interlayer, particularly be conducive to carry out the interlayer nitrogen replacement, effectively improve vacuum pumping rate and effect.
2, it have rational in infrastructure, safe and convenient to use, suction is high, degree of vacuum does not rebound and hold time advantage such as long.
Description of drawings
Fig. 1 is the theory structure schematic representation of cryogenic insulated cylinder interlayer vacuum pumping device of the present invention.
Embodiment
Below in conjunction with accompanying drawing most preferred embodiment of the present invention is further described.
A kind of cryogenic insulated cylinder interlayer vacuum pumping device, it comprises cryogenic insulated cylinder 1, heated oven 2, interior wind circulating fan 3, burning machine 4, adds hot leg pipe 5, suction branch 6, interior heating main 7, bleed house steward 8, nitrogen heating equipment 9, nitrogen replacement valve 10, Pneumatic baffle valve I 11, Pneumatic baffle valve II 12, diffusion pump 13, Pneumatic baffle valve III 14, sliding vane rotary pump 15, Roots pump 16 outward.
Burning machine 4 is installed on the upper top of heated oven 2, and burning machine 4 is by the internal communication of pipeline and heated oven 2.
Cryogenic insulated cylinder 1 bottleneck is erect the inside that places heated oven 2 up and by frock, and according to the designed capacity size of vacuum pumping device, a plurality of cryogenic insulated cylinders 1 can be placed in heated oven 2 inside, vacuumize operation simultaneously.
Interior heating main 7 horizontal arrangement are loaded on the inner tip of heated oven 2.
An end of heating main 7 in interior wind circulating fan 3 is loaded on, the suction port of interior wind circulating fan 3 is communicated with heated oven 2, and the air outlet of interior wind circulating fan 3 and interior heating main 7 are communicated with.
The upper end that adds hot leg pipe 5 vertically is loaded on interior heating main 7 also and 7 connections of interior heating main, the lower end that adds hot leg pipe 5 is splicing interface, add that hot leg pipe 5 is communicated in the integrated valve of cryogenic insulated cylinder 1 by splicing interface and the interlayer by integrated valve and cryogenic insulated cylinder 1 is communicated with, what can vertical equidistant many that the quantity correspondence is installed add hot leg pipe 5 on interior heating main 7 according to the quantity that vacuumizes cryogenic insulated cylinder 1 simultaneously.
House steward's 8 horizontal arrangement of bleeding outward are loaded on the top of heated oven 2 outsides.
The upper end of suction branch 6 vertically is loaded on the outer house steward 8 that bleeds and also is communicated with the house steward 8 that bleeds outward, the lower end of suction branch 6 by vacuum pumping tool equipment be connected in cryogenic insulated cylinder 1 and and the interlayer of cryogenic insulated cylinder 1 be communicated with how many many suction branches 6 of vertical equidistant installation quantity correspondence on the house steward 8 of can bleeding outside according to the quantity that vacuumizes cryogenic insulated cylinder 1 simultaneously.
The front end air outlet of nitrogen heating equipment 9 is communicated in the house steward 8 that bleeds, and the rear end suction port of nitrogen heating equipment 9 is connected in nitrogen replacement valve 10.
Pneumatic baffle valve I 11 is installed on the pipeline that is communicated with bleed house steward 8 and diffusion pump 13.
Pneumatic baffle valve II 12 is installed on the pipeline that is communicated with bleed house steward 8 and sliding vane rotary pump 15.
Pneumatic baffle valve III 14 is installed on the connecting pipeline between diffusion pump 13 and the sliding vane rotary pump 15.
Roots pump 16 is installed on sliding vane rotary pump 15 rear portions by connecting pipeline.
When in the vacuum cryogenic insulated cylinder 1 being heated, burning machine 4 and interior wind circulating fan 3 with hot air through interior heating main 7, add the interlayer that hot leg pipe 5 is sent into cryogenic insulated cylinder 1, the outer cylinder body of cryogenic insulated cylinder 1 and two surfaces of inner bag are heated simultaneously, be conducive to activate low-weight gases molecules such as the hydrogen that adsorbs in the gas cylinder sandwich layer thermal insulating material, helium and water molecule etc., accelerate the venting speed of thermoinsulation material, effectively improve the vacuum pumping rate of cryogenic insulated cylinder interlayer.
Claims (3)
1. cryogenic insulated cylinder interlayer vacuum pumping device is characterized in that it comprises cryogenic insulated cylinder (1), heated oven (2), interior wind circulating fan (3), burning machine (4), adds hot leg pipe (5), suction branch (6), interior heating main (7), bleed house steward (8), nitrogen heating equipment (9), nitrogen replacement valve (10), Pneumatic baffle valve I (11), Pneumatic baffle valve II (12), diffusion pump (13), Pneumatic baffle valve III (14), sliding vane rotary pump (15), Roots pump (16) outward;
Burning machine (4) is installed on the upper top of heated oven (2), and burning machine (4) is by the internal communication of pipeline and heated oven (2);
Cryogenic insulated cylinder (1) bottleneck is erect the inside place heated oven (2) up and by frock;
Interior heating main (7) horizontal arrangement is loaded on the inner tip of heated oven (2);
Interior wind circulating fan (3) is loaded on an end of interior heating main (7), and the suction port of interior wind circulating fan (3) is communicated with heated oven (2), and the air outlet of interior wind circulating fan (3) and interior heating main (7) are communicated with;
The upper end that adds hot leg pipe (5) vertically is loaded on interior heating main (7) also and interior heating main (7) connection, the lower end that adds hot leg pipe (5) is splicing interface, adds that hot leg pipe (5) is communicated in the integrated valve of cryogenic insulated cylinder (1) by splicing interface and the interlayer by integrated valve and cryogenic insulated cylinder (1) is communicated with;
House steward (8) horizontal arrangement of bleeding outward is loaded on the outside top of heated oven (2);
The upper end of suction branch (6) vertically is loaded on the outer house steward (8) that bleeds and also is communicated with the house steward (8) that bleeds outward, and the lower end of suction branch (6) is connected in cryogenic insulated cylinder (1) also by vacuum pumping tool equipment and the interlayer of cryogenic insulated cylinder (1) is communicated with;
The front end air outlet of nitrogen heating equipment (9) is communicated in the house steward that bleeds (8), and the rear end suction port of nitrogen heating equipment (9) is connected in nitrogen replacement valve (10);
Pneumatic baffle valve I (11) is installed on the pipeline that is communicated with bleed house steward (8) and diffusion pump (13);
Pneumatic baffle valve II (12) is installed on the pipeline that is communicated with bleed house steward (8) and sliding vane rotary pump (15);
Pneumatic baffle valve III (14) is installed on the connecting pipeline between diffusion pump (13) and the sliding vane rotary pump (15);
Roots pump (16) is installed on sliding vane rotary pump (15) rear portion by connecting pipeline.
2. cryogenic insulated cylinder interlayer vacuum pumping device according to claim 1 is characterized in that: how much can go up vertical equidistant many that the quantity correspondence is installed at interior heating main (7) according to the quantity that vacuumizes cryogenic insulated cylinder (1) simultaneously and add hot leg pipe (5).
3. cryogenic insulated cylinder interlayer vacuum pumping device according to claim 1 is characterized in that: how many house stewards (8) that can bleed outside go up the many suction branches (6) of vertical equidistant installation quantity correspondence according to the quantity that vacuumizes cryogenic insulated cylinder (1) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310318019.6A CN103343878B (en) | 2013-07-26 | 2013-07-26 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310318019.6A CN103343878B (en) | 2013-07-26 | 2013-07-26 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103343878A true CN103343878A (en) | 2013-10-09 |
| CN103343878B CN103343878B (en) | 2015-06-24 |
Family
ID=49278696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310318019.6A Expired - Fee Related CN103343878B (en) | 2013-07-26 | 2013-07-26 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103343878B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019355A (en) * | 2014-05-09 | 2014-09-03 | 南通龙鹰真空成套设备科技有限公司 | Circular heating room with multi-wrapping vacuum insulation gas cylinder vacuum-pumping system equipment |
| CN104033725A (en) * | 2014-05-09 | 2014-09-10 | 南通龙鹰真空成套设备科技有限公司 | Vacuumizing system equipment for multilayer-winded vacuum thermal-insulation gas cylinder |
| CN109958838A (en) * | 2019-04-19 | 2019-07-02 | 张家港保税区蓝山装备科技有限公司 | Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance |
| CN110763446A (en) * | 2019-10-23 | 2020-02-07 | 张家港富瑞特种装备股份有限公司 | Device capable of providing data for drawing relation curve of vacuum degree and gas leakage and discharge amount of interlayer |
| CN111288292A (en) * | 2020-03-28 | 2020-06-16 | 中国联合工程有限公司 | Shelf type LNG (liquefied Natural gas) cylinder vacuumizing device and vacuumizing method |
| CN111810832A (en) * | 2020-08-05 | 2020-10-23 | 杭州富士达特种材料股份有限公司 | Vacuum multilayer heat-insulation low-temperature container interlayer nitrogen flushing and replacing system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490552A (en) * | 2003-08-17 | 2004-04-21 | 河南中原绿能高科有限责任公司 | Vacuumizing method and device for replacing air of liquefied natural gas storage tank |
| CN201180900Y (en) * | 2008-04-16 | 2009-01-14 | 荆门宏图特种飞行器制造有限公司 | High-efficiency air suction heating mechanism in low-temperature liquid tank interlayer evacuation course |
| KR20090046573A (en) * | 2007-11-06 | 2009-05-11 | 주식회사 엔케이 | Storage tank for hydrogen fuel with combined use of high and low pressure |
| DE102010034970A1 (en) * | 2010-08-20 | 2012-02-23 | Linde Aktiengesellschaft | Storage vessel for storing e.g. liquid oxygen, has insulation space arranged between outer and inner containers, and stop valves associated with inlet and/or outlet pipes, where one stop valve is arranged in insulation space |
| CN102913749A (en) * | 2012-10-23 | 2013-02-06 | 西安轨道交通装备有限责任公司 | Vacuum-pumping system and vacuum-pumping method for large-capacity low-temperature thermal insulating container |
| CN202992642U (en) * | 2012-12-21 | 2013-06-12 | 山东宏达科技集团有限公司 | Special device for vacuumizing deep cold container interlayer |
| CN203431483U (en) * | 2013-07-26 | 2014-02-12 | 江南工业集团有限公司 | Low-temperature heat-insulation gas cylinder interlayer vacuumizing device |
-
2013
- 2013-07-26 CN CN201310318019.6A patent/CN103343878B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490552A (en) * | 2003-08-17 | 2004-04-21 | 河南中原绿能高科有限责任公司 | Vacuumizing method and device for replacing air of liquefied natural gas storage tank |
| KR20090046573A (en) * | 2007-11-06 | 2009-05-11 | 주식회사 엔케이 | Storage tank for hydrogen fuel with combined use of high and low pressure |
| CN201180900Y (en) * | 2008-04-16 | 2009-01-14 | 荆门宏图特种飞行器制造有限公司 | High-efficiency air suction heating mechanism in low-temperature liquid tank interlayer evacuation course |
| DE102010034970A1 (en) * | 2010-08-20 | 2012-02-23 | Linde Aktiengesellschaft | Storage vessel for storing e.g. liquid oxygen, has insulation space arranged between outer and inner containers, and stop valves associated with inlet and/or outlet pipes, where one stop valve is arranged in insulation space |
| CN102913749A (en) * | 2012-10-23 | 2013-02-06 | 西安轨道交通装备有限责任公司 | Vacuum-pumping system and vacuum-pumping method for large-capacity low-temperature thermal insulating container |
| CN202992642U (en) * | 2012-12-21 | 2013-06-12 | 山东宏达科技集团有限公司 | Special device for vacuumizing deep cold container interlayer |
| CN203431483U (en) * | 2013-07-26 | 2014-02-12 | 江南工业集团有限公司 | Low-temperature heat-insulation gas cylinder interlayer vacuumizing device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019355A (en) * | 2014-05-09 | 2014-09-03 | 南通龙鹰真空成套设备科技有限公司 | Circular heating room with multi-wrapping vacuum insulation gas cylinder vacuum-pumping system equipment |
| CN104033725A (en) * | 2014-05-09 | 2014-09-10 | 南通龙鹰真空成套设备科技有限公司 | Vacuumizing system equipment for multilayer-winded vacuum thermal-insulation gas cylinder |
| CN104019355B (en) * | 2014-05-09 | 2016-01-27 | 南通龙鹰真空成套设备科技有限公司 | Multi-lay winding vacuum insulation gas cylinder pumped vacuum systems equipment circulating-heating room |
| CN104033725B (en) * | 2014-05-09 | 2016-01-27 | 南通龙鹰真空成套设备科技有限公司 | Multi-lay winding vacuum insulation gas cylinder pumped vacuum systems is equipped |
| CN109958838A (en) * | 2019-04-19 | 2019-07-02 | 张家港保税区蓝山装备科技有限公司 | Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance |
| CN110763446A (en) * | 2019-10-23 | 2020-02-07 | 张家港富瑞特种装备股份有限公司 | Device capable of providing data for drawing relation curve of vacuum degree and gas leakage and discharge amount of interlayer |
| CN111288292A (en) * | 2020-03-28 | 2020-06-16 | 中国联合工程有限公司 | Shelf type LNG (liquefied Natural gas) cylinder vacuumizing device and vacuumizing method |
| CN111810832A (en) * | 2020-08-05 | 2020-10-23 | 杭州富士达特种材料股份有限公司 | Vacuum multilayer heat-insulation low-temperature container interlayer nitrogen flushing and replacing system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103343878B (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103343878B (en) | Vacuum pumping device for interlayer of cryogenic insulation cylinder | |
| CN203431483U (en) | Low-temperature heat-insulation gas cylinder interlayer vacuumizing device | |
| CN100554682C (en) | Vacuum pumping method and device thereof | |
| CN102913749A (en) | Vacuum-pumping system and vacuum-pumping method for large-capacity low-temperature thermal insulating container | |
| CN202691581U (en) | Welded insulated gas cylinder | |
| CN110748786B (en) | Industrial liquid hydrogen storage device based on argon, nitrogen and positive hydrogen three-level heat preservation | |
| CN109931495B (en) | Liquid hydrogen storage heat insulation gas cylinder for vehicle | |
| CN202926548U (en) | Vacuum-pumping system for large-volume low-temperature insulated container | |
| CN208901068U (en) | Supercritical hydrogen storage tank | |
| CN105715945A (en) | High-vacuum insulation low-temperature storage tank and manufacturing method thereof | |
| CN207832041U (en) | Coal and rock based on liquid carbon dioxide conducts fracturing device | |
| CN112303476B (en) | Vacuum pumping system and method for tank container for freezing liquefied gas | |
| CN205447250U (en) | High high vacuum insulation low temperature storage tank | |
| CN103615655A (en) | Low-temperature heat-insulation gas cylinder vacuumizing system | |
| CN105156881A (en) | Intelligent supercharging device and method for low-temperature thermal insulation container | |
| CN111810834A (en) | Vacuum obtaining system and method for vacuum multilayer heat insulation low-temperature container interlayer | |
| CN212840678U (en) | Vacuum obtaining system for vacuum multilayer heat insulation low-temperature container interlayer | |
| CN103900869B (en) | low temperature molecular sieve adsorption pump device | |
| CN203036241U (en) | Low-temperature heat-insulating storage tank | |
| CN203927382U (en) | Horizontal interior heating pumped vacuum systems | |
| CN204664866U (en) | Vehicle-mounted liquefied gas bottle supercharging device | |
| CN111981312A (en) | Device and method for filling pearlife on line | |
| CN203549369U (en) | Low-temperature insulating gas bottle vacuumizing system | |
| CN102797943B (en) | Vacuumizing technology for vacuum low-temperature thermal insulation pipeline | |
| CN103047535A (en) | Interlayer vacuumizing method for cryogenic vessel and special device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20150624 Termination date: 20180726 |