CN207623013U - A kind of emergency trip recording system of steam turbine - Google Patents
A kind of emergency trip recording system of steam turbine Download PDFInfo
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- CN207623013U CN207623013U CN201721922472.8U CN201721922472U CN207623013U CN 207623013 U CN207623013 U CN 207623013U CN 201721922472 U CN201721922472 U CN 201721922472U CN 207623013 U CN207623013 U CN 207623013U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model is related to steam turbine chasers to protect field; more particularly to a kind of emergency trip recording system of steam turbine; it is that can only preserve a trip signal to solve existing steam turbine trip system; other status signals can not be preserved; and preserve when the long disadvantage of data collection cycle and propose, including：On-off signal unit；Analog input unit；Industrial personal computer；And the power supply being connect with industrial personal computer.Wherein, On-off signal unit is used to acquire the on-off model of the switch amount output unit from turbine emergency trip system；Analog output unit is used to acquire the analog signals of the analog output unit from turbine emergency trip system；Industrial personal computer is all connected with On-off signal unit and analog input unit, for judging whether unit trips according to on-off model and analog signals, if so, industrial personal computer preserves all trip signals in the predetermined time.The utility model is suitable for making steam turbine trip protection equipment.
Description
Technical field
The utility model is related to steam turbine chasers to protect field, and in particular to a kind of emergency trip recording system of steam turbine
System.
Background technology
The emergency tripping system (ETS) of current steam turbine is the essential of guarantee Turbo-generator Set normal operation
Safety guard.In steam turbine operation, when the injured dangerous situation of unit may be caused there are certain, ETS devices
Steam turbine automatic emergency can be made to trip, protect the safety of unit.There are one switch boards and one piece of operations staff behaviour for set ETS devices
It is tested panel, there are the DCS controls of the stand-by heat each other of two rows of programmable logic controller (PLC)s (PLC) component or two in switch board
Device, a hypervelocity control unit, wherein there are three the tachometric relay of tape handling and display function, an AC and DC power supply case,
And two row's input and output terminals positioned at the switch board back side.ETS devices the operation feelings of steam turbine by each Sensor monitoring
Condition, when chaser operating mode occurs, ETS systems can remember first signal for causing unit tripping, but the state of other signals
Do not have the function of preservation, or have the function of preservation, the excessive cycle of data acquisition general 1 second, is lost the meaning used
Justice.
Utility model content
Purpose of the utility model is to solve existing steam turbine trip systems can only preserve a trip signal, nothing
Method preserves other status signals, and the long disadvantage of data collection cycle when preserving, and proposes a kind of steam turbine
Emergency trip recording system.
A kind of emergency trip recording system of steam turbine, including：
On-off signal unit；Analog input unit；Industrial personal computer；And the power supply being connect with industrial personal computer.
Wherein, On-off signal unit is for acquiring opening for the switch amount output unit from turbine emergency trip system
Measure signal in pass；Analog output unit is used to acquire the analog quantity of the analog output unit from turbine emergency trip system
Signal；Industrial personal computer is all connected with On-off signal unit and analog input unit, for according to on-off model and mould
Analog quantity signal judges whether unit trips, if so, industrial personal computer preserves all trip signals in the predetermined time.
The beneficial effects of the utility model are：1, the utility model can preserve turbine emergency trip system before tripping
All chaser signals in 10 minutes and the trip signal sent out, can only preserve a nearest information compared with the prior art,
The information content that the utility model preserves is more fully；2, the signal acquisition periods of the utility model are less than 20 milliseconds, compared to
1 second collection period of the prior art, the utility model can acquire more signals before tripping occurs；3, the utility model
Temporal resolution can reach 1ms, i.e. the interval that two adjacent events occur, which reaches 1ms, can differentiate the elder generation that outgoing event occurs
Sequence afterwards.
Description of the drawings
Fig. 1 is the structural schematic diagram of the emergency trip recording system of the steam turbine of the utility model.
Specific implementation mode
Specific implementation mode one：The turbine emergency tripping recording system of present embodiment, as shown in Figure 1, including：
On-off signal unit；Analog input unit；Industrial personal computer；And the power supply being connect with industrial personal computer.
Wherein, On-off signal unit is for acquiring opening for the switch amount output unit from turbine emergency trip system
Measure signal in pass；Analog output unit is used to acquire the analog quantity of the analog output unit from turbine emergency trip system
Signal；Industrial personal computer is all connected with On-off signal unit and analog input unit, for according to on-off model and mould
Analog quantity signal judges whether unit trips, if so, industrial personal computer preserves all chaser signals and trip signal in the predetermined time.
Specifically, the utility model is to be connected on turbine emergency trip system (ETS) outside, this reality is specifically used
The switch amount output unit of ETS is connected with the On-off signal unit of novel recording system, is connected with analog input unit
Connect the analog output unit of ETS.
On-off signal unit and analog input unit all can be I/O fasteners, such as Ai Mo gives birth to Ovation DCS cards
Part or similar similar fastener, effect are to receive on-off model and analog signals.The terminal number of each I/O point can be with
With reference to the service manual of specific fastener, those skilled in the art can determine that this practicality is new according to specific fastener service manual
The On-off signal unit and analog input unit of type should how wiring, use, be not detailed herein.
Industrial personal computer judges whether unit trips by the on-off model that receives and analog signals, specifically sentences
Disconnected mode can be the occurrence of detection switch amount or whether analog quantity reaches certain threshold value, the judgement that the utility model uses
The mode of tripping is not directed to existing judgment mode and is improved, and the conventional method in field can be used to be judged.
Industrial personal computer is persistently detected judgement, if it is judged that ETS has issued trip signal, then can preserve certain time
Interior all trip signals." all trip signals " is meant that, actually there are many trip protections for the host of steam turbine, such as
The big chaser of generator failure chaser, axial displacement, heater by-pass cut failure chaser etc. soon, these trip signals can be
It is preserved in certain time." certain time " can be the time in 5 minutes and 5 minutes later before tripping,
It can be by specific duration be manually arranged.
The innovation of the utility model is, increases the unexistent recording system of the prior art, by recording system with
Existing ETS systems are attached, and make up the defect that ETS system communication cycles are long, preservation information is few, other are for tripping information
The technology of preservation is improved in ETS systems, and effect is difficult to have huge promotion, therefore the utility model passes through
A kind of external system so that sampling period, tripping information integrity are significantly improved and are promoted, and have very outstanding
Effect.
Specific implementation mode two：The present embodiment is different from the first embodiment in that：The steam turbine of the utility model
Emergency trip recording system further includes：
Display unit is operated, is connect with On-off signal unit and analog input unit, for being believed according to switching value
Number and analog signals formation curve and/or chart；It is additionally operable to carry out the data of on-off model and analog signals
Real-time display, printing, Data Format Transform.
I.e. after specific implementation mode one has saved necessary trip signal, it can also use operation display unit will
The information preserved is called, shows.Operation display unit can specifically include display, input equipment etc., can pass through
Input equipment input data call instruction, stored data are shown in display screen, can also be by data chart, curve
Form show, or data are printed, and the storage format of data is converted.
Other steps and parameter are same as the specific embodiment one.
Specific implementation mode three：The present embodiment is different from the first and the second embodiment in that：The input of power supply
For two-way 220VAC Alternating Current Power Supplies, exports as 220VAC power supplys all the way, power for industrial personal computer.
Other steps and parameter are the same as one or two specific embodiments.
Specific implementation mode four：Unlike one of present embodiment and specific implementation mode one to three：Power supply has
There is undisturbed handoff functionality.
Other steps and parameter are identical as one of specific implementation mode one to three.
Specific implementation mode five：Unlike one of present embodiment and specific implementation mode one to four：On-off signal
The time recording frequency of unit is 1.0m.
Other steps and parameter are identical as one of specific implementation mode one to four.
Specific implementation mode six：Unlike one of present embodiment and specific implementation mode one to five：On-off signal
The logout frequency of unit is 1.0m.The sample frequency of analog input unit is 19.2kHz.
Other steps and parameter are identical as one of specific implementation mode one to five.
The utility model can also have other various embodiments, in the situation without departing substantially from the spirit of the present invention and its essence
Under, those skilled in the art work as can make various corresponding change and deformations according to the utility model, but these corresponding changes
The protection domain of the utility model the attached claims should all be belonged to deformation.
Claims (6)
1. a kind of emergency trip recording system of steam turbine, which is characterized in that including：
On-off signal unit；Analog input unit；Industrial personal computer；And the power supply being connect with industrial personal computer；
Wherein, On-off signal unit is used to acquire the switching value of the switch amount output unit from turbine emergency trip system
Signal；Analog output unit is used to acquire the analog quantity letter of the analog output unit from turbine emergency trip system
Number；Industrial personal computer is all connected with On-off signal unit and analog input unit, for according to on-off model and simulation
Amount signal judges whether unit trips, if so, industrial personal computer preserves all trip signals in the predetermined time.
2. the emergency trip recording system of steam turbine according to claim 1, which is characterized in that further include：
Operate display unit, connect with On-off signal unit and analog input unit, be used for according to on-off model with
And analog signals formation curve and/or chart；It is additionally operable to carry out the data of on-off model and analog signals real-time
It has been shown that, printing, Data Format Transform.
3. the emergency trip recording system of steam turbine according to claim 1 or 2, it is characterised in that：
The input of the power supply is two-way 220VAC Alternating Current Power Supplies, exports as 220VAC power supplys all the way, powers for industrial personal computer.
4. the emergency trip recording system of steam turbine according to claim 3, which is characterized in that the power supply has
Switching undisturbed function.
5. the emergency trip recording system of steam turbine according to claim 1, it is characterised in that：
The logout frequency of the On-off signal unit is 1.0ms.
6. the emergency trip recording system of steam turbine according to claim 1 or 5, it is characterised in that：
The sample frequency of the analog input unit is 19.2kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922472.8U CN207623013U (en) | 2017-12-28 | 2017-12-28 | A kind of emergency trip recording system of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922472.8U CN207623013U (en) | 2017-12-28 | 2017-12-28 | A kind of emergency trip recording system of steam turbine |
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| Publication Number | Publication Date |
|---|---|
| CN207623013U true CN207623013U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721922472.8U Active CN207623013U (en) | 2017-12-28 | 2017-12-28 | A kind of emergency trip recording system of steam turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020424A (en) * | 2017-12-28 | 2018-05-11 | 哈尔滨汽轮机厂有限责任公司 | A kind of emergency trip recording system of steam turbine |
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2017
- 2017-12-28 CN CN201721922472.8U patent/CN207623013U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020424A (en) * | 2017-12-28 | 2018-05-11 | 哈尔滨汽轮机厂有限责任公司 | A kind of emergency trip recording system of steam turbine |
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