CN102563169A - Remote control system of long-distance pipeline block valve chamber - Google Patents
Remote control system of long-distance pipeline block valve chamber Download PDFInfo
- Publication number
- CN102563169A CN102563169A CN2010106046212A CN201010604621A CN102563169A CN 102563169 A CN102563169 A CN 102563169A CN 2010106046212 A CN2010106046212 A CN 2010106046212A CN 201010604621 A CN201010604621 A CN 201010604621A CN 102563169 A CN102563169 A CN 102563169A
- Authority
- CN
- China
- Prior art keywords
- block valve
- valve
- control
- distance pipeline
- valve chamber
- 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
Images
Abstract
The invention discloses a remote control system of a long-distance pipeline block valve chamber, and the remote control system comprises a driving system, a remote control and transmission system, an upper operation center and a solar energy power supply system, wherein the driving system comprises an execution mechanism connected with a valve rod of a block valve, a 24V direct current electric head used for driving the execution mechanism to open or close the block valve, and a control cabinet; the remote control and transmission system comprises a remote measurement and control terminal which is used for remotely controlling the control cabinet and realizing the real-time transmission of long-distance pipeline pressure data and temperature data; the upper operation center is mutually communicated with the remote measurement and control terminal and realizes the remote control over the block valve through transmitting control instructions to the remote measurement and control terminal; and the solar energy power supply system supplies power for the execution mechanism and each instrument unit. A 24V large-power weak current driving mode is adopted for the execution mechanism, remote control of a big-caliber high-pressure crude oil or other medium long-distance pipeline block valve chamber without mains power support and without optical cable concomitance is realized, line patrol workload of workers is reduced, and loss and impact on the environment possibly caused at a pipeline failure state are reduced.
Description
Technical field
The present invention relates to the telecontrol of the block valve in the conveyance conduit; More particularly; Relate to a kind of crude oil pipeline and block the valve chamber tele-control system; Be used to not have the heavy caliber that civil power supports, no optical cable companion is capable, the telecontrol that the high pressure crude oil pipeline blocks valve chamber, also can be used for transporting the telecontrol that valve chamber is blocked in the heavy caliber long distance pipeline remote districts of other media.
Background technique
When long distance pipeline conveying crude oil or product oil, by standard the valve chamber that blocks of some will be set on the way, to guarantee pipeline maintenance, to turn-off when speedily carrying out rescue work, loss that reduction accident to a certain extent possibly brought and environmental pollution.An indoor block valve, a bypass, a pipe medium pressure measuring device, the pipeline medium temperature measuring equipment of being provided with usually of block valve.
Shown in Figure 1 is the flow process commonly used of crude oil pipeline valve chamber; Generally speaking; Block valve 1 is a normally open; Flow-guiding valve 2 is a normally off, and along the pipeline downstream transport, the workman is temperature and the pressure data on reading and recording thermometer 9 and the pressure gauge 8 regularly through block valve 1 for medium (crude oil or finished product wet goods).When manually turn-offing block valve 1, when not opening, can open flow-guiding valve 2, balance pressure as if drift angle is excessive about the block valve.When website need overhaul, close block valve 1 on the way, flow-guiding valve 2 also keeps off state, after the termination of pumping of the upper reaches, opens atmospheric valve 5 or atmospheric valve 6, excess oil in the discharge piping.Under the accident condition, need close block valve 1 manually, avoid a large amount of leakages of medium, cause the tremendous economic loss, and environment was caused holocaust.
Rely on this flow process, the common valve chamber that blocks disposes following three kinds:
First kind, manually-operable shows on the spot.Valve chamber adopts like the configuration in Fig. 1 flow process, and block valve is manually-operable, and pressure gauge, thermometer etc. are demonstration on the spot, and the valve chamber situation can not remote monitoring, the employing manual regular line walking way to manage of checking meter.When pipeline occurs needing Shuttoff Valve unusually, notify the line walking workman by the staff of control centre, the workman rushes to valve chamber and closes the valve operation.
Second kind, manually-operable is gathered automatically.Block valve is still for manually-operable, data such as automatic pressure acquisition, temperature, warning, transmission means such as CDMA, Radio Station, optical cable are adopted in communication, with the data upload that collects to control centre.This kind is configured to the configuration that present most long distance pipeline adopts, and block valve can not telecontrol, needs the manual regular line walking, but has realized automatic data collection and upload, and does not need manual metering.When pipeline occurs needing Shuttoff Valve unusually, notify the line walking workman by the staff of control centre, the workman rushes to valve chamber and closes the valve operation.
The third, telecontrol is gathered automatically.The valve chamber geographical position is better, and civil power and optical cable support can be provided, and block valve adopts 220V or 380V electricity to drive, and behind the automatic data collections such as pressure, temperature, warning, is uploaded to control centre through optical cable.The transmission of support optical cable, the part valve chamber also is provided with video monitoring system, can realize the telecontrol and the video monitoring of valve chamber.Do not need artificial frequent line walking, do not need manual metering, when pipeline occurs needing Shuttoff Valve unusually, only need control centre to provide remote command, can realize the unlatching/shutoff of valve.
The shortcoming that existing block valve control exists: first kind, second kind configuration all can't realize the telecontrol of valve; Can not realize the shutoff of valve in the accident very first time; With economic loss and possibly be reduced to minimum to the infringement that environment causes; The workman needs frequent line walking, and labor intensity is big, and the recruitment number is many.The third configuration can only equip at the good valve chamber of only a few condition, and that most of valve chamber is located in is remote, and no civil power, no optical cable support are difficult to realize the telecontrol and the video monitoring of valve chamber.
Summary of the invention
The invention provides a kind of crude oil pipeline and block the valve chamber tele-control system; Realize functions such as the heavy caliber of no civil power support, no optical cable companion row, telecontrol, video monitoring, automatic data collection that the high pressure crude oil pipeline blocks valve chamber are uploaded, warning; Reduce workman's line walking workload; The loss that possibly cause when reducing the pipeline accident state reaches the influence to environment, makes crude oil pipeline realize that completely digital management and operation become possibility.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of long distance pipeline blocks the valve chamber tele-control system, comprising:
Drive system comprises the actuator that connects with the valve rod of block valve, is used for driving execution mechanism and carries out the control box that block valve was opened or turn-offed the electrical header of action and controls said electrical header work;
Telecontrol and transmission system comprise RTU, are used for the real-time Transmission of the said control box of telecontrol and realization long distance pipeline pressure data and temperature data;
Upper operating center realizes intercommunication mutually with said RTU, and said upper operating center realizes the telecontrol to block valve through being transferred to said RTU control command;
And power supply system, be used to the power supply of said drive system and telecontrol and transmission system,
Said drive system adopts high-power 24V direct-drive motor, and driving execution mechanism realizes the unlatching/shutoff of block valve, and its power supply can be shared with the instrument power supply system, do not need independent commercial power supply.
Said power supply system is a solar electric power supply system; Comprise the battery plate, charge controller and the battery pack that receive solar energy; Said battery pack is electrically connected with said electrical header, control box and RTU respectively; Said battery pack circuit output voltage is 24V, is used to drive said electrical header and is the instrument power supply on the said long distance pipeline.
Said telecontrol and transmission system also comprise 3G wireless communication system and/or cdma wireless communication system, and said telecontrol and transmission system realize in the same bit manipulation communication in the heart through 3G wireless communication system or cdma wireless communication system.
The indoor video-unit that is used to monitor said block valve state that also is provided with of said block valve, said video-unit are connected with RTU with said battery pack through circuit respectively.
Said upper operation system comprises:
The systems soft ware configuration is used to support automatic one-tenth table, one-tenth figure, download, the printing of data;
And operating platform, possess remote control operation function, video monitoring window, the warning of block valve.
The beneficial effect of the technological scheme that the embodiment of the invention provides is:
1, adopts the driving of high-power 24V direct current generator, solar electric power supply system, 3G radio communication; Realized the telecontrol of no civil power, no optical cable area oil transport pipeline valve chamber; For the safe operation of pipeline provides guarantee, supported " three anti-four duties " system construction of enterprise;
2, realize all-weather video monitoring, the automatic data collection of valve chamber and uploading, satisfied the requirement of digital management;
3, reduced working strength of workers, reduced the amount of labour used, for enterprise reduces the heavy burdens;
But 4, the following very first time of accident condition reaction with economic loss and possibly reduce to minimumly to the injury that environment causes, meets present HSE requirement;
5, the employing of 3G signal can be searched for the CDMA signal automatically when no 3G signal.
6, investment cost is low, and construction speed is fast, and final-period management and maintenance cost are low, and is low to the support conditional request, but large scale application.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the common system that crude oil pipeline blocks valve chamber in the existing technology;
Fig. 2 is a long distance pipeline block valve chamber system of the present invention.
Among the figure:
The 1-block valve; The 2-flow-guiding valve; The 3-pressure transmitter; The 4-temperature transmitter; 5, the 6-atmospheric valve; The 7-long distance pipeline; The 8-pressure gauge; 9, thermometer.
Embodiment
For making the object of the invention, technological scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
As shown in Figure 2, of the present invention mainly by forming with the bottom:
1) light current drive system: comprise the electrical header formed by 24V light current drive motor and gear-box and actuator, control box etc.; Adopt a kind of high-power light current to drive direct current generator; Cooperate two-stage gear reduction transmission, can carry out long-range and ON/OFF control on the spot, realize the unlatching/switching down of block valve 1 any pressure; Motor adopts light current to drive, and valve switching times is 20～150s.
2) big-power solar power supply system: form by solar panel, charge controller and dark circulating storage battery group; Give power supplies such as light current drive motor, control box, RTU RTU, video-unit; Satisfy the overcast and rainy power supply of continuous 6-10d, low temperature resistant to subzero 30 ℃.
3) telecontrol and transmission system: comprise parts such as RTU RTU, 3G wireless communication system, cdma wireless communication system, pressure transmitter, temperature transmitter, warning; Can realize the pressure data real-time Transmission; The temperature data real-time Transmission, the transmission of invasion signal in real time, block valve realtime monitoring; Video signal real-time Transmission, accumulator electric-quantity monitoring in real time etc.
4) upper operating center comprises systems soft ware configuration, operating platform etc., supports automatic one-tenth table, one-tenth figure, download, the printing of data, possesses remote control operation function, video monitoring window, warning and the wrong report etc. of block valve.
Working procedure: the electric actuator of block valve configuration adopts 24V light current to drive; The control room provides closes valve or opens the valve instruction; Be sent to valve chamber RTU RTU through the 3G radio communication; Through control box with instruction issuing to electrical header and actuator, actuator action is turn-offed block valve or open.All signals in the valve chamber comprise the Guan Wen, pipe pressure, ground temperature, combustible gas alarm, video, water enchroachment (invasion), gate inhibition of block valve control signal, collection etc., all are attached to the RTU RTU, are sent to control centre by the 3G wireless communication system.Light current drive motor, control box equipment, RTU RTU, video camera etc. are supplied power by solar electric power supply system.Through the organic assembling of system, can realize crude oil pipeline block the telecontrol of valve chamber, video monitoring, radio communication, automatic data collection and upload, function such as warning.In the time of a little less than this area does not have 3G signal or 3G signal, can search for the CDMA signal automatically.
Need to prove: the present invention can not only be applied to telecontrol that heavy caliber, high pressure crude oil pipeline are blocked valve chamber, also can be used for transporting the telecontrol that valve chamber is blocked in the heavy caliber long distance pipeline remote districts of other media.
Also can be applicable in the transformation to original valve chamber, general original configuration valve chamber is equipped with block valve, bypass valve, atmospheric valve, pressure gauge, thermometer.Can transform by total figure shown in the accompanying drawing 2.Install electrical header and actuator on the block valve additional, be connected to control box; Thermometer is replaced by temperature transmitter, and pressure gauge is replaced by pressure transmitter, and video camera is installed on the wall.Control box, temperature transmitter, pressure transmitter, video camera all are connected in the RTU RTU, through the 3G wireless communication system, signal are sent to upper operating center, or receive the order of upper operating center, carry out the unlatching/shutoff operation of valve.All devices and instrument electricity consumption are provided by solar electric power supply system.Solar electric power supply system comprises the solar panel that is installed in the roof, is installed in charge controller and battery pack in the explosion-proof tank.For making installation compact and attractive in appearance more, RTU, control box and battery pack concentrate in the big explosion-proof tank, also can install respectively.
The 3G communication mode is adopted in communication, and it is based on tcp/ip communication, and the radio telecommunication network through 3G carries out data transmission, can transmit data and video simultaneously.
All kinds of instrument signals of having gathered are connected in the RTU RTU, and are uploaded to upper operating center with gathering signal through the 3G communications system.Be to carry out communication between RTU RTU and the 3G communications system through the RS232 communication interface of standard.
System provides open interface through OPC and other data communication agreement, and through wireless or fiber optic network, the data of native system can upload to upper operating center and realize data integration.
The invention described above embodiment's sequence number is not represented embodiment's quality just to description.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a long distance pipeline blocks the valve chamber tele-control system, comprising:
Drive system comprises the actuator that connects with the valve rod of block valve, is used for driving execution mechanism and carries out the control box that block valve was opened or turn-offed the electrical header of action and controls said electrical header work;
Telecontrol and transmission system comprise RTU, are used for the real-time Transmission of the said control box of telecontrol and realization long distance pipeline pressure data and temperature data;
Upper operating center realizes intercommunication mutually with said RTU, and said upper operating center realizes the telecontrol to block valve through being transferred to said RTU control command;
And power supply system, be used to the power supply of said drive system and telecontrol and transmission system,
It is characterized in that:
The said electrical header that is used for driving execution mechanism is the 24V direct drive,
Said power supply system is a solar electric power supply system; Comprise the battery plate, charge controller and the battery pack that receive solar energy; Said battery pack is electrically connected with said electrical header, control box and RTU respectively; Said battery pack circuit output voltage is 24V, is used to drive said electrical header and is the instrument power supply on the said long distance pipeline.
2. long distance pipeline according to claim 1 blocks the valve chamber tele-control system, it is characterized in that:
Said telecontrol and transmission system also comprise 3G wireless communication system and/or cdma wireless communication system, and said telecontrol and transmission system realize in the same bit manipulation communication in the heart through 3G wireless communication system or cdma wireless communication system.
3. long distance pipeline according to claim 1 and 2 blocks the valve chamber tele-control system, it is characterized in that:
The indoor video-unit that is used to monitor said block valve state that also is provided with of said block valve, said video-unit are connected with RTU with said battery pack through circuit respectively.
4. long distance pipeline according to claim 3 blocks the valve chamber tele-control system, it is characterized in that:
Said upper operation system comprises:
The systems soft ware configuration is used to support automatic one-tenth table, one-tenth figure, download, the printing of data;
And operating platform, possess remote control operation function, video monitoring window, the warning of block valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106046212A CN102563169A (en) | 2010-12-15 | 2010-12-15 | Remote control system of long-distance pipeline block valve chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106046212A CN102563169A (en) | 2010-12-15 | 2010-12-15 | Remote control system of long-distance pipeline block valve chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563169A true CN102563169A (en) | 2012-07-11 |
Family
ID=46409382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106046212A Pending CN102563169A (en) | 2010-12-15 | 2010-12-15 | Remote control system of long-distance pipeline block valve chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102563169A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742787A (en) * | 2013-08-05 | 2014-04-23 | 西南石油大学 | Method for determining distance between block valve chambers of long-distance natural gas pipeline |
| CN103867777A (en) * | 2014-03-06 | 2014-06-18 | 深圳市蔚华艺科技有限公司 | Intelligent electric valve |
| CN105202258A (en) * | 2015-10-09 | 2015-12-30 | 上海力典电磁阀有限公司 | Rapid maintenance valve equipment applicable to long-distance control |
| CN105526399A (en) * | 2016-01-22 | 2016-04-27 | 辽宁石油化工大学 | Valve remote operation control system with external transmission mechanism |
| CN107781646A (en) * | 2017-11-21 | 2018-03-09 | 中煤航测遥感集团有限公司 | Natural gas monitoring system |
| CN109723878A (en) * | 2017-10-27 | 2019-05-07 | 天津市北方阀门控制设备有限公司 | A kind of electric executing agency |
| CN111007795A (en) * | 2019-12-29 | 2020-04-14 | 核工业理化工程研究院 | Equipment monitoring system with valve remote control safety protection function and safety protection method |
| CN112178261A (en) * | 2020-09-29 | 2021-01-05 | 北京龙鼎源科技股份有限公司 | Method, device and system for remotely controlling valve |
| CN113162955A (en) * | 2020-01-07 | 2021-07-23 | 中国石油天然气集团有限公司 | Monitoring method, device, system, server and storage medium for long-distance pipeline |
| CN114321556A (en) * | 2020-09-29 | 2022-04-12 | 中国石油天然气集团有限公司 | Emptying control system of natural gas pipeline |
| CN116658674A (en) * | 2023-08-01 | 2023-08-29 | 博莱阀门（常州）有限公司 | Automatic control valve based on data analysis and automatic control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481934Y (en) * | 2001-05-22 | 2002-03-13 | 王文才 | Stop valve gas-liquid linkage for main pipeline of long distance pipeline |
| US20060148410A1 (en) * | 2005-01-03 | 2006-07-06 | Nelson Richard L | Wireless process field device diagnostics |
| CN101369152A (en) * | 2008-10-17 | 2009-02-18 | 中国安全生产科学研究院 | Safety monitoring early warning and safety management system and method for oil gas extracting, gathering and transporting operation |
| CN201513146U (en) * | 2009-09-25 | 2010-06-23 | 荆州市明德科技有限公司 | Solar-powered integrated remote measuring and monitoring system |
| CN202091779U (en) * | 2010-12-15 | 2011-12-28 | 中国石油天然气股份有限公司 | Remote control system of block valve room of long transmission pipeline |
-
2010
- 2010-12-15 CN CN2010106046212A patent/CN102563169A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2481934Y (en) * | 2001-05-22 | 2002-03-13 | 王文才 | Stop valve gas-liquid linkage for main pipeline of long distance pipeline |
| US20060148410A1 (en) * | 2005-01-03 | 2006-07-06 | Nelson Richard L | Wireless process field device diagnostics |
| CN101369152A (en) * | 2008-10-17 | 2009-02-18 | 中国安全生产科学研究院 | Safety monitoring early warning and safety management system and method for oil gas extracting, gathering and transporting operation |
| CN201513146U (en) * | 2009-09-25 | 2010-06-23 | 荆州市明德科技有限公司 | Solar-powered integrated remote measuring and monitoring system |
| CN202091779U (en) * | 2010-12-15 | 2011-12-28 | 中国石油天然气股份有限公司 | Remote control system of block valve room of long transmission pipeline |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742787A (en) * | 2013-08-05 | 2014-04-23 | 西南石油大学 | Method for determining distance between block valve chambers of long-distance natural gas pipeline |
| CN103867777A (en) * | 2014-03-06 | 2014-06-18 | 深圳市蔚华艺科技有限公司 | Intelligent electric valve |
| CN105202258A (en) * | 2015-10-09 | 2015-12-30 | 上海力典电磁阀有限公司 | Rapid maintenance valve equipment applicable to long-distance control |
| CN105526399A (en) * | 2016-01-22 | 2016-04-27 | 辽宁石油化工大学 | Valve remote operation control system with external transmission mechanism |
| CN109723878A (en) * | 2017-10-27 | 2019-05-07 | 天津市北方阀门控制设备有限公司 | A kind of electric executing agency |
| CN107781646A (en) * | 2017-11-21 | 2018-03-09 | 中煤航测遥感集团有限公司 | Natural gas monitoring system |
| CN111007795A (en) * | 2019-12-29 | 2020-04-14 | 核工业理化工程研究院 | Equipment monitoring system with valve remote control safety protection function and safety protection method |
| CN113162955A (en) * | 2020-01-07 | 2021-07-23 | 中国石油天然气集团有限公司 | Monitoring method, device, system, server and storage medium for long-distance pipeline |
| CN113162955B (en) * | 2020-01-07 | 2023-02-10 | 中国石油天然气集团有限公司 | Monitoring method, device, system, server and storage medium for long-distance pipeline |
| CN112178261A (en) * | 2020-09-29 | 2021-01-05 | 北京龙鼎源科技股份有限公司 | Method, device and system for remotely controlling valve |
| CN114321556A (en) * | 2020-09-29 | 2022-04-12 | 中国石油天然气集团有限公司 | Emptying control system of natural gas pipeline |
| CN116658674A (en) * | 2023-08-01 | 2023-08-29 | 博莱阀门（常州）有限公司 | Automatic control valve based on data analysis and automatic control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102563169A (en) | Remote control system of long-distance pipeline block valve chamber | |
| CN202091779U (en) | Remote control system of block valve room of long transmission pipeline | |
| CN103076792B (en) | Perception transmission equipment administrating system | |
| CN202166122U (en) | Heating station energy-saving control system | |
| CN102355052A (en) | Routing inspection system based on intelligent robot of transformer station and method for monitoring operation of transformer station | |
| CN103186971A (en) | Security and protection system for hand-operated valve chamber of long-distance pipeline | |
| CN103185201B (en) | Oil and gas pipes manual valve chamber integration leakage monitoring terminal | |
| AU2014277701B2 (en) | Signal acquiring and monitoring system based on wireless node network | |
| CN206471793U (en) | A kind of cable intermediate joint protection device | |
| CN203049692U (en) | Constant-pressure intelligent water supply controller | |
| CN102508471B (en) | Device and method for coal mine monitor message transmission based on power lines | |
| CN207571542U (en) | A kind of underground coal mine exploiting field disperses draining Automatic monitoring systems | |
| CN202532191U (en) | Oil-gas pipeline and manual valve chamber integrated leakage monitoring terminal | |
| CN209168754U (en) | A kind of nuclear power plant containment shell DEFORMATION MONITORING SYSTEM | |
| CN208707801U (en) | The multi-party supervision site ingress/egress points of one kind monitors environmental surveillance mobile device automatically | |
| CN202469495U (en) | Terminal device for monitoring water supply pipe network | |
| CN202488213U (en) | Condition monitoring agency device and system for electric transmission line | |
| CN202331769U (en) | Automatic monitoring data communication system | |
| CN212410583U (en) | Movable carbon monoxide monitoring device | |
| CN110543160B (en) | Centralized control and automatic control system for water pump of belt conveyor | |
| CN102316304A (en) | Solar wireless monitoring system | |
| CN113566892A (en) | Data acquisition unit based on central heating secondary pipe network data application | |
| CN201066170Y (en) | Heating supply system buildings or entrance valve automatic regulating system | |
| CN211822694U (en) | Heat energy edge service system based on Internet of things technology | |
| CN209218134U (en) | A kind of automatic meter reading system based on ICP/IP protocol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |
|
| WD01 | Invention patent application deemed withdrawn after publication |