CN201714433U - Novel combined cycle steam turbine protecting system - Google Patents
Novel combined cycle steam turbine protecting system Download PDFInfo
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- CN201714433U CN201714433U CN2010202516924U CN201020251692U CN201714433U CN 201714433 U CN201714433 U CN 201714433U CN 2010202516924 U CN2010202516924 U CN 2010202516924U CN 201020251692 U CN201020251692 U CN 201020251692U CN 201714433 U CN201714433 U CN 201714433U
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Abstract
The utility model discloses a novel combined cycle steam turbine protecting system, which comprises an open-loop control system, a closed-loop control system, a protecting system and a remote control module, wherein the protecting system carries out communication transmission of data signals respectively with the open-loop control system and the closed-loop control system in a packet mode; the protecting system comprises a controller with the response speed of 8ms; and the remote control module is connected with the protecting system and is used for being externally connected with signals needing protection. The signal is transmitted by a DB block without a hard wire so as to avoid the extra work load of running maintenance; the response speed of the controller selected by the protecting system is 20 ms faster than the previous response speed; the remote control module is added to provide a basis for connecting other signals into the protecting system and make the functions of the protecting system more complete.
Description
Technical field
The utility model belongs to the mechano-electronic field, relates to a kind of novel combination circulation steam turbine protective system.
Background technique
The protective system of combination circulation steam turbine is a very important system in the unit operation, and this protective system can be protected fast and effectively to unit under abnormal conditions, and unit, personnel's safety is had very important meaning.The control system of existing Siemens combination circulation steam turbine group is mainly finished by three systems: open loop control system, closed loop control system, protective system.Open-loop control system adopts the TXP system of Siemens, and closed loop control system adopts the SIMADYND system of Siemens, and protective system adopts the S5-95F system, and the main hardwire that relies on carries out the transmission of signal between three systems.Wherein protective system employing S5-95F system is very complicated, and this systematic comparison is aging, and man-machine interface is unfriendly, must could carry out configuration and supervision to it through special-purpose PG740 computer; This system adopts the write statement pattern of programmingization aspect the program configuration simultaneously, and online modification and forced signal be more complicated all.
The model utility content
Technical problem to be solved in the utility model is: a kind of novel combination circulation steam turbine protective system is provided.
For solving the problems of the technologies described above, the utility model adopts following technological scheme.
A kind of novel combination circulation steam turbine protective system comprises open-loop control system, closed loop control system, protective system, remote control module; The form of described protective system employing packet and described open-loop control system and closed loop control system are carried out the communication transmission of data-signal respectively; Described protective system comprises that a speed of response is the controller of 8ms; Described remote control module links to each other with described protective system, in order to the external signal that needs protection.
As a kind of preferred version of the present utility model, described protective system comprises logic processing module, and the output loop testing module is shut down solenoid valve; Described logic processing module links to each other with described remote control module, open-loop control system, closed loop control system respectively, carries out logical process, the output logic processing signals in order to the signal to described remote control module, open-loop control system, closed loop control system output; Described output loop testing module links to each other with described logic processing module, and in order to detect the logical process signal, output detects control signal and alarm control signal; Described shutdown solenoid valve links to each other with described output loop testing module, in order to accept to detect the control of control signal, makes the action of whether shutting down.
As another kind of preferred version of the present utility model, described open-loop control system links to each other with described output loop testing module, in order to accept the control of described alarm control signal, sends warning.
The beneficial effects of the utility model are: protective system in the utility model and open loop, closed loop control system adopt unified system platform, and the transmission of signal adopts the DB piece to carry out, and need not to adopt hardwire, has avoided the unnecessary workload of operating maintenance; The controller that protective system is selected for use than speed of response before fast 20ms, increased remote control module, provide the foundation for other signals insert protective systems, make that the function of protective system is more perfect.
Description of drawings
Fig. 1 is the system block diagram of novel combination circulation steam turbine protective system described in the utility model;
Fig. 2 is the detailed structure schematic representation of novel combination circulation steam turbine protective system described in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Embodiment one
Present embodiment provides a kind of novel combination circulation steam turbine protective system, and as illustrated in fig. 1 and 2, this system comprises open-loop control system, closed loop control system, protective system, remote control module; The form of described protective system employing packet and described open-loop control system and closed loop control system are carried out the communication transmission of data-signal respectively; Described protective system comprises that a speed of response is the controller of 8ms; Described remote control module links to each other with described protective system, in order to the external signal that needs protection.
Described protective system comprises logic processing module, and the output loop testing module is shut down solenoid valve; Described logic processing module links to each other with described remote control module, open-loop control system, closed loop control system respectively, carries out logical process, the output logic processing signals in order to the signal to described remote control module, open-loop control system, closed loop control system output; Described output loop testing module links to each other with described logic processing module, and in order to detect the logical process signal, output detects control signal and alarm control signal; Described shutdown solenoid valve links to each other with described output loop testing module, in order to accept to detect the control of control signal, makes the action of whether shutting down.
Described open-loop control system links to each other with described output loop testing module, in order to accept the control of described alarm control signal, sends warning.
The utility model than before traditional combination circulation steam turbine protective system with better function, man-machine interface is unusual friendliness also.Concrete mentality of designing is as follows:
1, the selection of controller: when the operating conditions of combination circulation steam turbine occurs unusual; such as the hypervelocity, when axial displacement is big; necessarily require protective system to move fast and effectively; scanning time, performance to controller propose higher requirement; therefore protective system has been selected the fastest controller that can reach 8ms scanning time, is enough to satisfy the requirement of the quick response of controller.
2, the selection of hardware: adopted the protection theory of more advanced in the world FAILSAFE, i.e. failure safe type as long as one have fault, just necessarily requires stoppage protection, guarantees the safety of unit.Therefore all protection loop input and output all are provided with Twin channel; under the normal condition; protective signal all is output as 1; when any one protection input signal action; protective signal is reset to 0 at once; make the quick closing valve solenoid valve action of unit, on the degree of maximum, make unit to be effectively protected.
3, software configuration: modular configuration mode is adopted in the statement programming, makes that programming is more convenient, succinct; Protective system is connected the communication transmission that the mode that adopts DB (packet) is carried out data-signal with signal between open-loop control system, the closed loop control system, all adopt hard wired patterns before having changed, and makes data transmission more reliable, and system is more simplified.
4, increased REMOTE (remote control) function; in the design of soft, hardware, kept some standby passages, can directly receive on the remote control module according to on-the-spot actual situation the signal that the owner wants to protect; promptly can participate in the protection loop automatically, and not need to revise at the scene logic.Simultaneously, also increased head and gone out function, can will cause the signal of the machine of jumping to show at first, made things convenient for the scene to carry out fault inquiry in the very first time.
Here description of the present utility model and application are illustrative, are not to want with scope restriction of the present utility model in the above-described embodiments.Here disclosed embodiment's distortion and change are possible, and the various parts of embodiment's replacement and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present utility model or substantive characteristics, and the utility model can be with other forms, structure, layout, ratio, and realize with other elements, material and parts.
Claims (3)
1. a novel combination circulation steam turbine protective system is characterized in that, comprising:
Open-loop control system;
Closed loop control system;
Protective system, the form of employing packet and described open-loop control system and closed loop control system are carried out the communication transmission of data-signal respectively; Described protective system comprises that a speed of response is the controller of 8ms;
Remote control module links to each other with described protective system, in order to the external signal that needs protection;
2. novel combination circulation steam turbine protective system according to claim 1, it is characterized in that: described protective system comprises:
Logic processing module links to each other with described remote control module, open-loop control system, closed loop control system respectively, carries out logical process, the output logic processing signals in order to the signal to described remote control module, open-loop control system, closed loop control system output;
The output loop testing module links to each other with described logic processing module, and in order to detect the logical process signal, output detects control signal and alarm control signal;
Shut down solenoid valve, link to each other,, make the action of whether shutting down in order to accept to detect the control of control signal with described output loop testing module.
3. novel combination circulation steam turbine protective system according to claim 2 is characterized in that: described open-loop control system links to each other with described output loop testing module, in order to accept the control of described alarm control signal, sends warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202516924U CN201714433U (en) | 2010-07-06 | 2010-07-06 | Novel combined cycle steam turbine protecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202516924U CN201714433U (en) | 2010-07-06 | 2010-07-06 | Novel combined cycle steam turbine protecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714433U true CN201714433U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202516924U Expired - Lifetime CN201714433U (en) | 2010-07-06 | 2010-07-06 | Novel combined cycle steam turbine protecting system |
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| CN (1) | CN201714433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496638A (en) * | 2013-09-26 | 2014-01-08 | 苏州汇川技术有限公司 | Lifting protection system and lifting method for hoisting equipment |
| CN103850724A (en) * | 2012-11-29 | 2014-06-11 | 中广核工程有限公司 | System and method for achieving emergent shutdown of steam turbine in nuclear power station |
-
2010
- 2010-07-06 CN CN2010202516924U patent/CN201714433U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850724A (en) * | 2012-11-29 | 2014-06-11 | 中广核工程有限公司 | System and method for achieving emergent shutdown of steam turbine in nuclear power station |
| CN103850724B (en) * | 2012-11-29 | 2015-12-23 | 中广核工程有限公司 | A kind of nuclear power station realizes the system and method for steam turbine emergency shutdown |
| CN103496638A (en) * | 2013-09-26 | 2014-01-08 | 苏州汇川技术有限公司 | Lifting protection system and lifting method for hoisting equipment |
| CN103496638B (en) * | 2013-09-26 | 2015-07-15 | 苏州汇川技术有限公司 | Lifting protection system and lifting method for hoisting equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |
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| CX01 | Expiry of patent term |