CN107092223A - A kind of air lock whistle control system and method for supervising, controlling clastotype - Google Patents
A kind of air lock whistle control system and method for supervising, controlling clastotype Download PDFInfo
- Publication number
- CN107092223A CN107092223A CN201710397329.XA CN201710397329A CN107092223A CN 107092223 A CN107092223 A CN 107092223A CN 201710397329 A CN201710397329 A CN 201710397329A CN 107092223 A CN107092223 A CN 107092223A
- Authority
- CN
- China
- Prior art keywords
- signal
- air lock
- jack
- lock
- clastotype
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Lock And Its Accessories (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of air lock whistle control system and method for supervising, controlling clastotype, and the contact of the jack-up position switch of N number of air lock is in parallel in terminal block, and signal logic is realized by way of hard wire；The contact of the lowering position switch of N number of air lock is connected in terminal block, and signal logic is realized by way of hard wire；Now monitoring device is only used for now showing jack-up or the full state of N number of air lock, without sending out the air lock jack-up of synthesis or falling signal；One air lock jack-up monitoring system receives signal for jack-up, and it is just to fall that whole air locks, which fall monitoring system and received,.Using prison, the air lock signal of control clastotype and control system, it is ensured that the correctness of signal source, it will not be influenceed by third party monitoring plant failure.It is related to air lock signal in monitoring flow simultaneously and throws the continuous locking for both increasing strict logic of the step moved back, substantially increases the reliability of system.
Description
Technical field
The present invention relates to a kind of air lock whistle control system and method for supervising, controlling clastotype.
Background technology
Shown according to unit practical operation situation, air lock plays extremely important role.Such as during unit opens machine
Air lock exits tripping or to exit signal wrong, will cause to open machine failure；Air lock input tripping or throwing such as during compressor emergency shutdown
Enter signal wrong, unit downtime will be caused to extend；Air lock malfunction is put into such as in unit normal course of operation, will cause height
Speed adds lock, and abrasion brake hoop, the flue dust for damaging air lock, producing are difficult to clear up into rotor, and final unit moves back standby turn of maintenance；Such as
Air lock puts into signal malfunction in unit normal course of operation, will cause the mechanical chaser of unit.As can be seen here, unit must be equipped with
A set of reliable air lock signal and control system.
The content of the invention
The purpose of the present invention is that the problem of presence for original air lock control system, type selecting, signal are switched in damper positions
Send mode, air lock to exit signal source, monitoring logic on contact to be furtherd investigate, propose a kind of air lock supervised, control clastotype
The control method of signal, improves unit operation reliability.
To achieve the above object, the present invention uses following technical scheme：A kind of air lock signal control supervised, control clastotype
System, it is characterised in that：Including existing ground monitoring device, monitoring system and N number of air lock；The jack-up position switch of N number of air lock connects
Point is in parallel in terminal block, and signal logic is realized by way of hard wire；The contact of the lowering position switch of N number of air lock is at end
Connected on son row, signal logic is realized by way of hard wire；Now monitoring device is only used for now showing the top of N number of air lock
Rise or full state, without sending out the air lock jack-up of synthesis or falling signal；One air lock jack-up monitoring system receives letter
Number be jack-up, whole air locks fall monitoring system receive just be fall.
Further, N is 8.
In an embodiment of the present invention, air lock is fallen signal and sentenced jointly using position switch mechanical contacts and pressure switch
It is disconnected.
In an embodiment of the present invention, air lock is top plunger type position switch.
The present invention provides a kind of air lock signal control method supervised, control clastotype, and it comprises the following steps：S1:In machine
Group judges jack-up signal when shutting down stable state, is such as unsatisfactory for would not allow for start；The continuous judgement of step for exiting air lock in each change working
Signal is exited, being such as unsatisfactory for flow can not continue executing with；Jack-up signal logic is：Air lock jack-up ＆, which is exited, negates ＆ input chambers without pressure
Delay is negated；Exiting signal logic is：Air lock exit ＆ jack-up negate ＆ input chamber without calendering when；S2：In all need of sequence control process
The continuous middle setting feedback signal of step for moving back air lock postpones to receive, it is ensured that air lock exits order and must reliably sent, and prevents feedback signal from having
Order is caused not send the high speed brought plus lock or strap brake start possibility by mistake；S3：Generator fire-fighting secondary alarm is set to enter tripping operation
Matrix, when monitoring system receives the electric chaser of this signal, the signal logic is any cigarette sense and warming action in wind-tunnel, then sends out
This signal；S4:When electricity adjusts Rotation rate signal device device in cabinet to output the alarm of speed regulator rotational speed devices and rotational speed devices to monitoring system
All rotating speed outputs of locking during fault-signal；, work as in monitoring system setting and receive rotational speed devices fault-signal by mechanical chaser, if
Put when receiving speed regulator catastrophe failure or rotational speed devices fault-signal, mechanical braking is thrown in locking.
Compared with prior art, using prison, the air lock signal of control clastotype and control system, it is ensured that signal source is just
True property, will not be influenceed by third party monitoring plant failure.It is related to air lock signal in monitoring flow simultaneously and throws and moves back
The continuous locking for all adding strict logic of step, substantially increase the reliability of system.
Brief description of the drawings
Fig. 1 is top plunger type position switch structural representation.
Fig. 2 is one embodiment of the invention monitoring system 1.
Fig. 3 is one embodiment of the invention monitoring system 2.
Fig. 4 is one embodiment of the invention monitoring system 3.
Fig. 5 is one embodiment of the invention monitoring system 4.
Embodiment
Explanation is further explained to the present invention with specific embodiment below in conjunction with the accompanying drawings.
A kind of air lock whistle control system supervised, control clastotype, it is characterised in that：Including existing ground monitoring device, monitoring
System and N number of air lock；The contact of the jack-up position switch of N number of air lock is in parallel in terminal block, is realized by way of hard wire
Signal logic；The contact of the lowering position switch of N number of air lock is connected in terminal block, realizes that signal is patrolled by way of hard wire
Volume；Now monitoring device is only used for now showing jack-up or the full state of N number of air lock, the air lock jack-up without sending out synthesis
Or fall signal；One air lock jack-up monitoring system receives signal for jack-up, and whole air locks, which fall monitoring system and received, is
Fall.The normally closed point of rotational speed devices power transfer relay is sealed in the hard loop that mechanical braking is thrown in monitoring, it is ensured that when rotational speed devices event
Speculate tool brake circuit during barrier to disconnect.
Further, N is 8.
In an embodiment of the present invention, air lock is fallen signal and sentenced jointly using position switch mechanical contacts and pressure switch
It is disconnected.
In an embodiment of the present invention, air lock is top plunger type position switch.Its actuating length is shorter but can guarantee that
Reliable margin of safety.When air lock body is acted, action connection point can be reliably sent out, it is ensured that the correctness of signal source.
Topology view is as shown in Figure 1.
The present invention provides a kind of air lock signal control method supervised, control clastotype, its S1:In compressor emergency shutdown stable state
Judge jack-up signal, be such as unsatisfactory for would not allow for start；The step for exiting air lock in each change working continues judgement and exits signal, if not
Meeting flow can not continue executing with；Jack-up signal logic is：Air lock jack-up ＆ exit negate ＆ input chamber without calendering when（2 seconds）Take
Instead；Exiting signal logic is：Air lock exit ＆ jack-up negate ＆ input chamber without calendering when（2 seconds）；S2：It need to move back sequence control process is all
Feedback signal is set to postpone to receive during the step of air lock is continuous, it is ensured that air lock exits order and must reliably sent, and prevents feedback signal wrong
Order is caused not send the high speed brought plus lock or strap brake start possibility；S3：Generator fire-fighting secondary alarm is set to enter the square that trips
Battle array, when monitoring system receives the electric chaser of this signal, the signal logic is any cigarette sense and warming action in wind-tunnel, then sends out this
Signal；S4:When electricity adjusts Rotation rate signal device device in cabinet to output the alarm of speed regulator rotational speed devices and rotational speed devices event to monitoring system
All rotating speed outputs of locking when hindering signal；, set when receiving rotational speed devices fault-signal by mechanical chaser, set in monitoring system
When receiving speed regulator catastrophe failure or rotational speed devices fault-signal, mechanical braking is thrown in locking.
Fig. 2-5 is the monitoring system of a specific embodiment of the invention, wherein：
1st, air lock falls signal：The signal is given after the normal opened contact switched by 8 air lock lowering positions is connected on terminal
The signal of monitoring system
2nd, air lock jack-up signal：The signal is to be given by the normal opened contact of 8 air lock jack-up position switch on terminal after parallel connection
The signal of monitoring system
3rd, air lock cavity of resorption is without pressure signal：Pressure switch is set in air lock input chamber, when meaning that pressure rises to 3bar, contact disconnects,
The signal is not sent out；When pressure is down to 1.5bar, junction closure sends out the signal.
4th, time delay module：Receive the PT times Q that is delayed after high level signal and just export high level signal, if the high level signal
The PT times can not be kept, and then Q is always maintained at low level.
5th, with door module：All left-side signals are that high level is just exported on the right side of high level.
6th, the air lock of synthesis falls signal：The air lock synthesized by signal falls signal, is closed for logic in monitoring system
Lock.
7th, the air lock jack-up signal of synthesis：The air lock jack-up signal synthesized by signal, is closed for logic in monitoring system
Lock.
8th, the continuous module of flow step：The continuous module of flow step is monitored, fedback is preferentially judged（Feedback）, if satisfaction is fed back not
Export STEP CMD（The continuous output of step）, the continuous output of step is exported if feedback is unsatisfactory for.
9th, rotational speed devices fault-signal：By speed regulator system judge after give the rotational speed devices fault-signal of monitoring system.
10th, speed regulator Hard failure signals：By speed regulator system judge after give the Hard failure signals of monitoring system.
11st, the mechanical chaser of speed regulator：Speed regulator system machinery chaser, will perform the mechanical chaser flow of monitoring.
12nd, mechanical braking input order：After left side high level signal is received, outlet is made air lock jack-up by the signal.
8 air lock jack-up position switch are respectively drawn into 1 pair of normal opened contact is used to now show to existing ground monitoring device；Another 1 pair
Normal opened contact leads to generator remote I/O cabinets, 8 normal opened contacts is carried out in terminal block in parallel（In flakes and connect using short,
Prevent a terminal from connecing both threads and caused may loosen）, jack-up signal is sent out if having 1 pair of normal opened contact closure to monitoring DI
Module.8 air lock lowering position switches are respectively drawn into 1 pair of normal opened contact is used to now show to existing ground monitoring device；Another 1 pair normally opened
Contact leads to generator remote I/O cabinets, and 8 normal opened contacts are connected in terminal block（Equally gone here and there in flakes using short
Connect）, all normal opened contacts close, and submitting falls signal to monitoring DI modules.
The air lock jack-up signal synthesized as shown in Figure 2 is fallen using air lock jack-up ＆ and taken within 2 seconds when negating ＆ input chambers without calendering
Instead；The air lock of synthesis is fallen signal and fallen using air lock when ＆ jack-up negates ＆ input chambers without calendering 2 seconds.In compressor emergency shutdown stable state
Judge jack-up signal, such as either condition is unsatisfactory for would not allow for start.
The step for exiting air lock in each change working continues judgement and exits signal, and such as either condition, which is unsatisfactory for flow, can not continue to hold
OK.It need to be moved back because the continuous module of monitoring step is first judge whether feedback meets to decide whether to export again, therefore sequence control process is all
Feedback signal is set to postpone to receive during the step of air lock is continuous, it is ensured that air lock exits order and must reliably sent.By taking Fig. 3 as an example, the step continues
It is output as exiting air lock, then feedback of this step must receive air lock and fall composite signal ＆ previous steps step continuous to complete ＆ speed regulators tight
Stop valve involution and 2S can be kept.This design meanses are to ensure that air lock exits order and can reliably sent, will not be due to wind
Gate position switch fault or pressure switch failure etc. single element failure and causing air lock to exit order can not send.
" set generator fire secondary alarm " signal is set, and grade is alarmed for a type of red, monitoring receives this signal electricity
Gas chaser.The signal logic is any cigarette sense and warming action in wind-tunnel, then sends out this signal." set generator fire is set
One-level alarm " signal enters monitoring, and logic is that any cigarette sense or warming failure or action are sending signal in wind-tunnel, and grade is a class
Red alarm.This measure can add back-up protection during lock at a high speed as unit.
When electricity adjusts Rotation rate signal device device in cabinet to output " alarm of speed regulator rotational speed devices " and " rotational speed devices to monitoring system
All rotating speeds of locking output during failure " signal, can thus avoid by mistake hair the signal such as overrun.By rotational speed devices power transfer relay
Normally closed point is sealed in the hard loop that mechanical braking is thrown in monitoring, it is ensured that tool brake circuit is speculated when rotational speed devices failure and is disconnected.Such as
The mechanical chaser signal of speed regulator will be synthesized when receiving rotational speed devices fault-signal by being set in monitoring TRIP programs shown in Fig. 4, finally
Perform mechanical chaser flow.Set to work as in BRK programs as shown in Figure 5 and receive speed regulator catastrophe failure or rotational speed devices failure letter
Number when, locking throw mechanical braking.
Single equipment failure is worked as using technical scheme, this equipment is only cut off, it is ensured that system can also normal work
Make.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (5)
1. a kind of air lock whistle control system supervised, control clastotype, it is characterised in that：Including existing ground monitoring device, monitoring system
System and N number of air lock；The contact of the jack-up position switch of N number of air lock is in parallel in terminal block, and letter is realized by way of hard wire
Number logic；The contact of the lowering position switch of N number of air lock is connected in terminal block, realizes that signal is patrolled by way of hard wire
Volume；Now monitoring device is only used for now showing jack-up or the full state of N number of air lock, the air lock jack-up without sending out synthesis
Or fall signal；One air lock jack-up monitoring system receives signal for jack-up, and whole air locks, which fall monitoring system and received, is
Fall.
2. the air lock whistle control system of prison according to claim 1, control clastotype, it is characterised in that：N is 8.
3. the air lock whistle control system of prison according to claim 1, control clastotype, it is characterised in that：Air lock is fallen
Signal is judged jointly using position switch mechanical contacts and pressure switch.
4. according to any described prisons of claim 1-3, the air lock whistle control system of control clastotype, it is characterised in that：Wind
Lock is top plunger type position switch.
5. a kind of air lock signal control method supervised, control clastotype, it is characterised in that：
S1:Judge jack-up signal in compressor emergency shutdown stable state, be such as unsatisfactory for would not allow for start；Wind is exited in each change working
The step of lock continues judgement and exits signal, and being such as unsatisfactory for flow can not continue executing with；Jack-up signal logic is：Air lock jack-up ＆, which is exited, to be taken
Negated when anti-＆ input chambers are without calendering；Exiting signal logic is：Air lock exit ＆ jack-up negate ＆ input chamber without calendering when；
S2：Feedback signal is set to postpone to receive in all steps that need to move back air lock of sequence control process are continuous, it is ensured that air lock, which is exited, makes necessary
Reliably send, prevent feedback signal is wrong from causing order not send the high speed brought plus lock or strap brake start possibility；
S3：Generator fire-fighting secondary alarm is set to enter Tripping matrix, when monitoring system receives the electric chaser of this signal, the signal is patrolled
It is that any cigarette sense in wind-tunnel and warming are acted to collect, then sends out this signal；
S4:When electricity adjusts Rotation rate signal device device in cabinet to output the alarm of speed regulator rotational speed devices and rotational speed devices event to monitoring system
All rotating speed outputs of locking when hindering signal；Set when receiving rotational speed devices fault-signal by mechanical chaser, set in monitoring system
When receiving speed regulator catastrophe failure or rotational speed devices fault-signal, mechanical braking is thrown in locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397329.XA CN107092223B (en) | 2017-05-31 | 2017-05-31 | A kind of air lock whistle control system and method supervised, control clastotype |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397329.XA CN107092223B (en) | 2017-05-31 | 2017-05-31 | A kind of air lock whistle control system and method supervised, control clastotype |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107092223A true CN107092223A (en) | 2017-08-25 |
| CN107092223B CN107092223B (en) | 2019-06-28 |
Family
ID=59639001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710397329.XA Active CN107092223B (en) | 2017-05-31 | 2017-05-31 | A kind of air lock whistle control system and method supervised, control clastotype |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107092223B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748215A (en) * | 2012-07-12 | 2012-10-24 | 国电南京自动化股份有限公司 | Safety chain system of wind generating set and fault rapid identification method thereof |
| CN103557116A (en) * | 2013-09-30 | 2014-02-05 | 天津瑞能电气有限公司 | Hard-wire constructed safety protection device of wind generating set |
| CN106150852A (en) * | 2016-08-31 | 2016-11-23 | 中国长江电力股份有限公司 | A kind of startup-shutdown flow process of high water head mixed-flow Large-scale machine set |
| CN106200611A (en) * | 2016-06-23 | 2016-12-07 | 山东钢铁股份有限公司 | A kind of monitoring method of converter service condition |
-
2017
- 2017-05-31 CN CN201710397329.XA patent/CN107092223B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748215A (en) * | 2012-07-12 | 2012-10-24 | 国电南京自动化股份有限公司 | Safety chain system of wind generating set and fault rapid identification method thereof |
| CN103557116A (en) * | 2013-09-30 | 2014-02-05 | 天津瑞能电气有限公司 | Hard-wire constructed safety protection device of wind generating set |
| CN106200611A (en) * | 2016-06-23 | 2016-12-07 | 山东钢铁股份有限公司 | A kind of monitoring method of converter service condition |
| CN106150852A (en) * | 2016-08-31 | 2016-11-23 | 中国长江电力股份有限公司 | A kind of startup-shutdown flow process of high water head mixed-flow Large-scale machine set |
Non-Patent Citations (1)
| Title |
|---|
| 张双等: "丹江口水电厂六号机风闸制动控制系统的改造", 《科技视界》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107092223B (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106787973B (en) | Drive control device and method for yaw motor of wind generating set | |
| US20120070285A1 (en) | independent, distributed protection and safety system with fiber optic communication for wind turbines | |
| CN104734120B (en) | Blower motor protection and fault detection system and method | |
| CN109681443B (en) | Rotation speed control system and method for steam-driven main feed pump of nuclear power station | |
| CN102748215A (en) | Safety chain system of wind generating set and fault rapid identification method thereof | |
| CN101074614A (en) | Digital redundant emergent protecting system of steam turbine | |
| CN106877291A (en) | A kind of safe torque breaking circuit and system | |
| CN102080627B (en) | Safety chain unit for double-fed wind generating set | |
| CN107807329A (en) | A kind of steam turbine AST solenoid valve failures real-time monitoring and alarming and method | |
| CN107399303A (en) | Electrical changing station and its protection system | |
| CN211524912U (en) | Safety device of steam turbine feed pump | |
| CN108226747A (en) | A kind of dynamic circuit failure on-line detecting method | |
| CN110526052A (en) | Control system of actuating mechanism | |
| Butuza et al. | Automation system based on SIMATIC S7 300 PLC, for a hydro power plant | |
| CN107092223A (en) | A kind of air lock whistle control system and method for supervising, controlling clastotype | |
| CN201829929U (en) | Novel hard trip loop for large-scale thermal power unit MFT (main fuel trip) | |
| CN103615322B (en) | TRT unit overspeed control system and hypervelocity controlling method thereof | |
| CN105508137B (en) | A kind of control system preventing blower hypervelocity driving | |
| CN109931265A (en) | A kind of helical-lobe compressor fault judgment method and system | |
| CN208969497U (en) | A kind of electronic class device drives level structure of fired power generating unit | |
| CN106452203A (en) | Reliable drive control system, and control method thereof | |
| CN106523041B (en) | A kind of steam turbine differential expansion Protection control system | |
| CN206673564U (en) | A kind of pump-storage generator accident standby trip protection device | |
| CN110985280A (en) | Control loop and control method for preventing accidental shutdown of hydroelectric generating set | |
| Xu et al. | Fast Load Shedding Scheme for Enhancing Reliability and Stability of Expanded Liquified Gas Plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |