CN201060406Y - Logical control module dedicated for point-activated and electrical valve/baffle - Google Patents
Logical control module dedicated for point-activated and electrical valve/baffle Download PDFInfo
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- CN201060406Y CN201060406Y CNU200720050906XU CN200720050906U CN201060406Y CN 201060406 Y CN201060406 Y CN 201060406Y CN U200720050906X U CNU200720050906X U CN U200720050906XU CN 200720050906 U CN200720050906 U CN 200720050906U CN 201060406 Y CN201060406 Y CN 201060406Y
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Abstract
The utility model relates to an exclusive logic control module used for a point-action electrically operated valve / baffle. The utility model is characterized in that the logic control module consists of an input order processing logic circuit (1), a failure judging and processing logic circuit (2), a state processing logic circuit (3), and an output order generating logic circuit (4); the output terminal of the input order processing logic circuit (1) is connected with the input terminal of the output order generating logic circuit (4); the output terminal of the state processing logic circuit (3) is connected with one input terminal of the output order generating circuit (4) and a man / machine interface; the input terminal of the failure judging and processing logic circuit (2) is connected with the output terminal of the state processing logic circuit (3); the output terminal of the output order generating logic circuit (4) is connected with the output terminal of a controlled device. The utility model has the advantages that the standardization level is high, the interface is distinct, the programme is simplified, the expansion is convenient, and the mutual influence is small. The logic control module is suitable for various D C S systems and the rear stage standard logic control of a nuclear power station.
Description
Technical field
The utility model relates to a kind of crawl electrically operated valve/baffle plate special logic control module, is applicable to the robotization logic control of level driving mechanism behind the nuclear power station.Belong to nuclear power station electrical equipment technical field.
Background technology
At present, domestic 1000MW level nuclear power generating sets are generally by external introduction, and its logic control circuit is designed by foreign company.The robotization logic control device of circuit all adopts with logic elements such as door or doors, not gate, memory and constitutes, realization various logic control function.But logic control design partly for back level driving stage apparatus bodies such as pump/blower fans; some basic logic elements just are set in overall logic control circuit; these basic logical blocks adopt the nonstandardized technique that disperses to design, do not have specific aim; with various process logic control function; as enabled condition, defencive function, function such as control fuses automatically, not formation independently, logic function block standard, standard.Therefore, be difficult to distinguish the steering logic which logic is the driving stage device external, which is the intrinsic logic of driving stage device interior, makes that the interface of logic control is unintelligible, has defectives such as programming is complicated, portability is poor, use inconvenience.This brings difficulty for the realization of Digitizing And Control Unit DCS and later operation maintenance.
The utility model content
The purpose of this utility model, being is distributed structure in order to overcome an existing back level drive control logic circuit, the interface is unintelligible and the shortcoming of portable difference, provide a kind of independently, convenient crawl electrically operated valve/baffle plate special logic control module of transplanting.
The purpose of this utility model can reach by following measure:
Crawl electrically operated valve/baffle plate special logic control module, its design feature is: be made of input instruction processor logic, fault judgement and processor logic, state processing logical circuit and output order formation logic circuit; The signal input part that the input end of input instruction processor logic is communicated with the signal input port that is connected external information, signal output part connects output order formation logic circuit; The input end of state processing logical circuit connects the feedback of status signal of on-the-spot controlled device, and the signal output part of state processing logical circuit connects the input end and the people/machine interface HMI of an input end, the output order formation logic circuit of fault judgement and processor logic respectively; The output terminal of the signal input part connection status processor logic of fault judgement and processor logic, the output terminal of output order formation logic circuit connects with the output port that is connected on-the-spot controlled device.
The purpose of this utility model can also reach by taking following measure:
A kind of embodiment of the present utility model is: described input instruction processing logic comprise rest-set flip-flop B1, with door C1～C6 or door D1～D4 and not gate E1; The S input end of rest-set flip-flop B1 connects that automatic button A1, R input end connect hand push button A2, its reversed-phase output connects with an input end, its output terminal of door C1 and C2 and is connected to AUTO port A16 and be connected and the input end of C3, C4; With input end of door C1 with open button A3 and be connected, be connected with X button A4 with the input end of door C2; Is connected with open/closed signal input port A5 automatically with input end of door C3, C4, with the output terminal of door C1, C3 respectively by or door D1 is connected and the input end of a C5; With the output terminal of door C2, C4 respectively by or door D2 is connected a input end with a C6, with the output terminal of door C5 by or door D3 is connected an input end of output order formation logic circuit, with the output terminal of door C6 by or a D4 be connected an input end of output order formation logic circuit; Respectively having an input end to be connected with door C5, C6 allows open/closed signal input port A7, has an input end to be connected with protection open/closed signal input end A6 by not gate E1 with door C5; Or door D3, D4 respectively have an input end to be connected with protection opening/closing input signal port A6; Described automatic button A1, hand push button A2, open button A3, X button A4 is arranged among the controller VDU.
A kind of embodiment of the present utility model is: described fault judgement and processor logic are by constituting with door C7 or door D5 and chronotron F1; Be connected with two input ends of door C7 that opening/closing status signal input end A8, output terminal connect by chronotron F1 or the input end of door D5, or the output terminal of door D5 connects fault-signal output port A11, another input end connection MCC fault-signal output terminals A 13 of D5; The output terminal of chronotron F1 connects two " 1 " fault-signal output terminals A 12.
A kind of embodiment of the present utility model is: described state processing logical circuit is by constituting with door C8, C9 and not gate E2, E3; Opening/closing status signal input end A8 connects the state-detection end of Electrically operated gate, be connected opening/closing status signal input end A8 respectively and connect opening/closing status signal input end A8 with two input ends of door C8, C9 by not gate E2, E3, with the output terminal of door C8 and standard-sized sheet signal output part A10 with or the input end of door D6 is connected, is connected with the output terminal of door C9 complete shut-down signal output part A9 with or the input end of a D7.
A kind of embodiment of the present utility model is: described output order formation logic circuit by or door D6～D7, rest-set flip-flop B2～B3, not gate E4～E5 and electrothermal relay G1～G1 constitute; Or four input ends of door D6 be connected to respectively distant place signal input end A17, with the signal output part, MCC fault-signal output terminals A 13 of door C8 or the output terminal of door D4, or four input ends of door D6 are connected to the output terminal of distant place signal input end A17, the signal output part with door C9, MCC fault-signal output terminals A 13 or door D3 respectively; Or the output terminal of door D3 connects by not gate E2, electrothermal relay G1 or the 5th input end of door D6, or the output terminal of door D4 connects by not gate E3, electrothermal relay G2 or the 5th input end of door D7; Or the output terminal of door D6, D7 connects the R input end of rest-set flip-flop B2, B3 respectively, the S input end of rest-set flip-flop B2, B3 respectively with or the output terminal of door D3, D4 be connected; The output terminal of rest-set flip-flop B2, B3 connects Electrically operated gate opening/closing control signal output ends A14.
The beneficial effects of the utility model are:
The utility model reaches the typical of standard-sized sheet/complete shut-down electrically operated valve/baffle plate intrinsic control mode and relatively-stationary action logic standardization and forms driving stage standard logic piece, and it has following beneficial effect: 1, standardization level height, and the control interface is more clear; 2, the steering logic programing work is simplified, and groundwork is the design variable logic, and interface work 3, the steering logic of carrying out the standard logic piece is easy to revise and expansion, and it is little to influence each other; 4, applicable to the different various DCS system of hardware configuration.
Description of drawings
Fig. 1 is the structured flowchart of the utility model embodiment.
Fig. 2 is the workflow diagram of the utility model embodiment.
Fig. 3 is the electrical schematic diagram of specific embodiment of the utility model.
Embodiment
Specific embodiment 1:
With reference to Fig. 1, present embodiment is made of input instruction processor logic 1, fault judgement and processor logic 2, state processing logical circuit 3 and output order formation logic circuit 4; The signal input part that the input end of input instruction processor logic 1 is communicated with the signal input port that is connected external information, signal output part connects output order formation logic circuit 4; The input end of state processing logical circuit 3 connects the feedback of status signal of on-the-spot controlled device, the signal output part of state processing logical circuit 3 connects an input end of fault judgement and processor logic 2 respectively, input end of output order formation logic circuit 4 and three signal input parts of people/machine interface HMI fault judgement and processor logic 2 are gone into the output terminal of instruction process logical circuit 1 respectively, the output terminal of the output terminal of state processing logical circuit 3 and output order formation logic circuit 4, the output terminal of fault judgement and processor logic 2 connects with the output port that is connected on-the-spot controlled device.
Referring to Fig. 3, described input instruction processing logic 1 comprise rest-set flip-flop B1, with door C1～C6 or door D1～D4 and not gate E1; The S input end of rest-set flip-flop B1 connects that automatic button A1, R input end connect hand push button A2, its reversed-phase output connects with an input end, its output terminal of door C1 and C2 and is connected to AUTO port A16 and be connected and the input end of C3, C4; With input end of door C1 with open button A3 and be connected, be connected with X button A4 with the input end of door C2; Is connected with open/closed signal input port A5 automatically with input end of door C3, C4, C3 imports automatic OPEN AOP, and C4 imports automatic out code ACL, with the output terminal of door C1, C3 respectively by or door D1 is connected and the input end of a C5; With the output terminal of door C2, C4 respectively by or door D2 is connected a input end with a C6, with the output terminal of door C5 by or door D3 is connected an input end of output order formation logic circuit 4, with the output terminal of door C6 by or a D4 be connected an input end of output order formation logic circuit 4; Respectively have an input end to be connected with door C5, C6 and allow open/closed signal input port A7, wherein, C5, C6 import respectively and allow OPEN PEOP, allow out code PECL; There is an input end to be connected with protection open/closed signal input end A6 with door C5 by not gate E1; Or door D3, a D4 respectively have an input end to be connected with protection opening/closing input signal port A6, and wherein, D3, D4 distinguish input protection OPEN POP, protect out code PCL; Described automatic button A1, hand push button A2, open button A3, X button A4 is arranged among the controller VDU.
Described fault judgement and processor logic 2 are by constituting with door C7 or door D5 and chronotron F1; Be connected with two input ends of door C7 that opening/closing status signal input end A8, output terminal connect by chronotron F1 or the input end of door D5, or the output terminal of door D5 connects fault-signal output port A11, another input end connection MCC fault-signal output terminals A 13 of D5; The output terminal of chronotron F1 connects two " 1 " fault-signal output terminals A 12.Described fault-signal output terminals A 11, MCC fault-signal output terminals A 13, two " 1 " fault-signal output terminals A 12 can connect signal lamp or be connected to man-machine interface HMI and show.
Described state processing logic 3 is by constituting with door C8, C9 and not gate E2, E3; Opening/closing status signal input end A8 connects the state-detection end of Electrically operated gate, be connected opening/closing status signal input end A8 respectively and connect opening/closing status signal input end A8 with two input ends of door C8, C9 by not gate E2, E3, with the output terminal of door C8 and standard-sized sheet signal output part A10 with or the input end of door D6 is connected, is connected with the output terminal of door C9 complete shut-down signal output part A9 with or the input end of a D7.Standard-sized sheet signal output part A10, complete shut-down signal output part A9 can connect signal lamp or be connected to man-machine interface HMI and show.
Described output order formation logic 4 by or door D6～D7, rest-set flip-flop B2～B3, not gate E4～E5 and electrothermal relay G1～G1 constitute; Or four input ends of door D6 be connected to respectively distant place signal input end A17, with the signal output part, MCC fault-signal output terminals A 13 of door C8 or the output terminal of door D4, or four input ends of door D6 are connected to the output terminal of distant place signal input end A17, the signal output part with door C9, MCC fault-signal output terminals A 13 or door D3 respectively; Or the output terminal of door D3 connects by not gate E2, electrothermal relay G1 or the 5th input end of door D6, or the output terminal of door D4 connects by not gate E3, electrothermal relay G2 or the 5th input end of door D7; Or the output terminal of door D6, D7 connects the R input end of rest-set flip-flop B2, B3 respectively, the S input end of rest-set flip-flop B2, B3 respectively with or the output terminal of door D3, D4 be connected; The output terminal of rest-set flip-flop B2, B3 connects Electrically operated gate opening/closing control signal output ends A14.The output terminal of rest-set flip-flop B2, B3 connects Electrically operated gate opening/closing control signal output ends A14, by the unlatching of B2 output OPEN OD, crawl control electro-pneumatic valve, is closed by B3 output out code CD, crawl control electrically operated valve.Control input end, distant place A17 shows by signal lamp A16.
Purposes of the present utility model:
1, realizes the formation of monitored instruction.2, provide information for more senior functional module and operating personnel.3, be an interface of getting in touch between higher steering logic (comprising function group,, HMI continuous etc.) and the field apparatus along control step.
Referring to Fig. 2, principle of work of the present utility model is:
1 pair of outside on-site signal of input instruction processor logic, other equipment contact signal, reserve hand behaviour signal etc. carry out logical process; determine the priority level of each instruction; formation is to the steering order of device level; present embodiment is set and is protected the priority level of input instruction the highest, secondly for allowing the button input instruction of instruction, automatic input instruction, controller.
The device level steering order that 2 pairs of instruction process logics of fault judgement and processor logic are sent here, at each controlled device control mode, control the concrete course of action of this controlled device, finally convert the concrete command signal that controlled device can be accepted to, and the feedback signal by controlled device judges to the correct and mistake of course of action.As sending out long pulse still is the short pulse command signal, and course of action is still finished, logics such as cancellation or retentive control instruction after action is finished.
The status signal that state processing logical circuit 3 is sent input instruction processor logic and fault judgement and processor logic 2 here, through logical process, display processing methods such as utilization color change, literal indication are gone up the equipment operation condition that this device level is provided for the operations staff at HMI (man-machine interface).
The device level steering order that 4 pairs of input instruction processor logic 1 of output order formation logic circuit are sent here, at each controlled device control mode, the result who sends here according to fault judgement and processor logic 2 and state processing logical circuit 3, control the concrete course of action of this controlled device, finally convert the concrete command signal that the controlled device pneumatic valve can be accepted to, the instruction of opening/closing electrically operated valve is exported from the A14 port.
Present embodiment is applicable to adjustable Electrically operated gate or actuator.
Claims (5)
1. crawl electrically operated valve/baffle plate special logic control module is characterized in that: be made of input instruction processor logic (1), fault judgement and processor logic (2), state processing logical circuit (3) and output order formation logic circuit (4); The signal input part that the input end of input instruction processor logic (1) is communicated with the signal input port that is connected external information, signal output part connects output order formation logic circuit (4); The input end of state processing logical circuit (3) connects the feedback of status signal of on-the-spot controlled device, and the signal output part of state processing logical circuit (3) connects the input end and the people/machine interface (HMI) of an input end, the output order formation logic circuit (4) of fault judgement and processor logic (2) respectively; The output terminal of the signal input part connection status processor logic (3) of fault judgement and processor logic (2), the output terminal of output order formation logic circuit (4) connects with the output port that is connected on-the-spot controlled device.
2. crawl electrically operated valve according to claim 1/baffle plate special logic control module is characterized in that: described input instruction processing logic (1) comprise rest-set flip-flop B1, with door C1～C6 or door D1～D4 and not gate E1; The S input end of rest-set flip-flop B1 connects that automatic button A1, R input end connect hand push button A2, its reversed-phase output connects with an input end, its output terminal of door C1 and C2 and is connected to AUTO port A16 and be connected and the input end of C3, C4; With input end of door C1 with open button A3 and be connected, be connected with X button A4 with the input end of door C2; Is connected with open/closed signal input port A5 automatically with input end of door C3, C4, with the output terminal of door C1, C3 respectively by or door D1 is connected and the input end of a C5; With the output terminal of door C2, C4 respectively by or door D2 is connected a input end with a C6, with the output terminal of door C5 by or door D3 is connected an input end of output order formation logic circuit (4), with the output terminal of door C6 by or a D4 be connected an input end of output order formation logic circuit (4); Respectively having an input end to be connected with door C5, C6 allows open/closed signal input port A7, has an input end to be connected with protection open/closed signal input end A6 by not gate E1 with door C5; Or door D3, D4 respectively have an input end to be connected with protection opening/closing input signal port A6; Described automatic button A1, hand push button A2, open button A3, X button A4 is arranged among the controller VDU.
3. crawl electrically operated valve according to claim 1/baffle plate special logic control module is characterized in that: described fault judgement and processor logic (2) are by constituting with door C7 or door D5 and chronotron F1; Be connected with two input ends of door C7 that opening/closing status signal input end A8, output terminal connect by chronotron F1 or the input end of door D5, or the output terminal of door D5 connects fault-signal output port A11, another input end connection MCC fault-signal output terminals A 13 of D5; The output terminal of chronotron F1 connects two " 1 " fault-signal output terminals A 12.
4. crawl electrically operated valve according to claim 1/baffle plate special logic control module is characterized in that: described state processing logic (3) is by constituting with door C8, C9 and not gate E2, E3; Opening/closing status signal input end A8 connects the state-detection end of Electrically operated gate, be connected opening/closing status signal input end A8 respectively and connect opening/closing status signal input end A8 with two input ends of door C8, C9 by not gate E2, E3, with the output terminal of door C8 and standard-sized sheet signal output part A10 with or the input end of door D6 is connected, is connected with the output terminal of door C9 complete shut-down signal output part A9 with or the input end of a D7.
5. crawl electrically operated valve according to claim 1/baffle plate special logic control module is characterized in that: described output order formation logic (4) by or door D6～D7, rest-set flip-flop B2～B3, not gate E4～E5 and electrothermal relay G1～G1 constitute; Or four input ends of door D6 be connected to respectively distant place signal input end A17, with the signal output part, MCC fault-signal output terminals A 13 of door C8 or the output terminal of door D4, or four input ends of door D6 are connected to the output terminal of distant place signal input end A17, the signal output part with door C9, MCC fault-signal output terminals A 13 or door D3 respectively; Or the output terminal of door D3 connects by not gate E2, electrothermal relay G1 or the 5th input end of door D6, or the output terminal of door D4 connects by not gate E3, electrothermal relay G2 or the 5th input end of door D7; Or the output terminal of door D6, D7 connects the R input end of rest-set flip-flop B2, B3 respectively, the S input end of rest-set flip-flop B2, B3 respectively with or the output terminal of door D3, D4 be connected; The output terminal of rest-set flip-flop B2, B3 connects Electrically operated gate opening/closing control signal output ends A14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720050906XU CN201060406Y (en) | 2007-04-28 | 2007-04-28 | Logical control module dedicated for point-activated and electrical valve/baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720050906XU CN201060406Y (en) | 2007-04-28 | 2007-04-28 | Logical control module dedicated for point-activated and electrical valve/baffle |
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| Publication Number | Publication Date |
|---|---|
| CN201060406Y true CN201060406Y (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720050906XU Expired - Lifetime CN201060406Y (en) | 2007-04-28 | 2007-04-28 | Logical control module dedicated for point-activated and electrical valve/baffle |
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| CN (1) | CN201060406Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075694A1 (en) * | 2008-12-31 | 2010-07-08 | 广东省电力设计研究院 | Power plant feed line switch control module for a nuclear power station |
| WO2010075690A1 (en) * | 2008-12-31 | 2010-07-08 | 广东省电力设计研究院 | Electronic switch control module of nuclear power plant |
| CN102799170A (en) * | 2011-05-23 | 2012-11-28 | 洛克威尔自动控制技术股份有限公司 | Jog push botton |
| CN104571066A (en) * | 2015-01-28 | 2015-04-29 | 上海明华电力技术工程有限公司 | DCS (distributed control system) platform-based adjusting-type executor backup operation method and system |
| CN105867339A (en) * | 2016-05-26 | 2016-08-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Subunit-level sequence control logic module for nuclear power plant and application method of subunit-level sequence control logic module |
| CN111043375A (en) * | 2019-11-20 | 2020-04-21 | 重庆金维实业有限责任公司 | Auxiliary oxygen flow interlocking control system of acetylene reaction furnace in process of preparing acetylene from natural gas |
-
2007
- 2007-04-28 CN CNU200720050906XU patent/CN201060406Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075694A1 (en) * | 2008-12-31 | 2010-07-08 | 广东省电力设计研究院 | Power plant feed line switch control module for a nuclear power station |
| WO2010075690A1 (en) * | 2008-12-31 | 2010-07-08 | 广东省电力设计研究院 | Electronic switch control module of nuclear power plant |
| CN102799170A (en) * | 2011-05-23 | 2012-11-28 | 洛克威尔自动控制技术股份有限公司 | Jog push botton |
| CN102799170B (en) * | 2011-05-23 | 2016-07-13 | 洛克威尔自动控制技术股份有限公司 | Inching button |
| CN106094796A (en) * | 2011-05-23 | 2016-11-09 | 洛克威尔自动控制技术股份有限公司 | Inching button |
| US9939794B2 (en) | 2011-05-23 | 2018-04-10 | Rockwell Automation Technologies, Inc. | Jog push button |
| CN104571066A (en) * | 2015-01-28 | 2015-04-29 | 上海明华电力技术工程有限公司 | DCS (distributed control system) platform-based adjusting-type executor backup operation method and system |
| CN105867339A (en) * | 2016-05-26 | 2016-08-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Subunit-level sequence control logic module for nuclear power plant and application method of subunit-level sequence control logic module |
| CN111043375A (en) * | 2019-11-20 | 2020-04-21 | 重庆金维实业有限责任公司 | Auxiliary oxygen flow interlocking control system of acetylene reaction furnace in process of preparing acetylene from natural gas |
| CN111043375B (en) * | 2019-11-20 | 2021-08-03 | 重庆金维实业有限责任公司 | Auxiliary oxygen flow interlocking control system of acetylene reaction furnace in process of preparing acetylene from natural gas |
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Inventor after: Wu Guangjian Inventor after: Tang Hongjian Inventor after: Luo Bixiong Inventor after: Liu Yusui Inventor after: Luo Yingjian Inventor after: Xue Peihua Inventor after: Li Jun Inventor before: Liu Yusui Inventor before: Wu Guangjian Inventor before: Luo Yingjian Inventor before: Xue Peihua Inventor before: Li Jun |
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Free format text: CORRECT: INVENTOR; FROM: LIU YUSUI WU GUANGJIAN LUO YINGJIAN XUE PEIHUA LI JUN TO: WU GUANGJIAN TANG HONGJIAN LUO BIXIONG LIU YUSUI LUO YINGJIAN XUE PEIHUA LI JUN |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangzhou Dongfang Electric Power Co., Ltd. Assignor: Guangdong Electric Power Design Institute Contract record no.: 2010440000683 Denomination of utility model: Logical control module dedicated for point-activated and electrical valve/baffle Granted publication date: 20080514 License type: Exclusive License Record date: 20100609 |
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Assignee: Guangzhou Dongfang Electric Power Co., Ltd. Assignor: Guangdong Electric Power Design Institute Contract record no.: 2010440000683 Date of cancellation: 20111115 |
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| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP03 | Change of name, title or address |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Guangdong Electric Power Design Institute of CEEC Address before: 510600 No. 846 Dongfeng East Road, Guangdong, Guangzhou Patentee before: Guangdong Electric Power Design Institute |
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| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |