CN109000826A - The alarm method of the vapor (steam) temperature of Steam Turbine, device and system - Google Patents
The alarm method of the vapor (steam) temperature of Steam Turbine, device and system Download PDFInfo
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- CN109000826A CN109000826A CN201810361253.XA CN201810361253A CN109000826A CN 109000826 A CN109000826 A CN 109000826A CN 201810361253 A CN201810361253 A CN 201810361253A CN 109000826 A CN109000826 A CN 109000826A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
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Abstract
The invention discloses a kind of alarm methods of the vapor (steam) temperature of Steam Turbine, device and system.Wherein, this method comprises: obtaining the current steam temperature and historic steam temperature of Steam Turbine；Based on current steam temperature and historic steam temperature, judge whether current steam temperature meets alert if；In the case where current steam temperature meets alert if, corresponding prompt messages are generated.The technical issues of vapor (steam) temperature alarm accuracy that the present invention solves Steam Turbine in the prior art is low, poor reliability.
Description
Technical field
The present invention relates to Steam Turbine field, in particular to a kind of vapor (steam) temperature of Steam Turbine alarm method,
Device and system.
Background technique
For Steam Turbine, since main steam temperature declines 50 DEG C suddenly, it may be possible to which the omen of water slug, water occur for unit
Impact will cause the badly damaged of entire unit.Meanwhile steam temperature sharply descends general who has surrendered to cause quick refrigeration to components of steam turbine, produces
Raw very big thermal stress and thermal deformation, can cause steam turbine sound to touch mill when serious.In order to ensure unit operates normally, when
When main, reheat steam temperature declines 50 DEG C suddenly in 10min, gate stop-start should be beaten immediately.
Currently, the Steam Turbine of configuration ABB scattered control system, cannot achieve bust in main, reheat steam temperature 10min
50 DEG C of automatic alarms typically artificially judge to carry out making lock stoppage in transit steam turbine manually, lead to accuracy of alarming by operations staff
It is low, poor reliability.
For the problem that the vapor (steam) temperature alarm accuracy of Steam Turbine in the prior art is low, poor reliability, at present not yet
It puts forward effective solutions.
Summary of the invention
The embodiment of the invention provides a kind of alarm methods of the vapor (steam) temperature of Steam Turbine, device and system, to solve
The technical issues of vapor (steam) temperature alarm accuracy of Steam Turbine is low in the prior art, poor reliability.
According to an aspect of an embodiment of the present invention, a kind of alarm method of the vapor (steam) temperature of Steam Turbine is provided, is wrapped
It includes: obtaining the current steam temperature and historic steam temperature of Steam Turbine；Based on current steam temperature and historic steam temperature, sentence
Whether disconnected current steam temperature meets alert if；In the case where current steam temperature meets alert if, generate corresponding
Prompt messages.
Further, it is based on current steam temperature and historic steam temperature, judges whether current steam temperature meets alarm
Condition, comprising: obtain the maximum vapor (steam) temperature in historic steam temperature；Obtain the temperature of maximum vapor (steam) temperature and current steam temperature
Spend difference；Judge whether temperature gap is more than preset threshold；In the case where temperature gap is more than preset threshold, current steam is determined
Stripping temperature meets alert if.
Further, historic steam temperature includes the vapor (steam) temperature in the first preset time period；Preset threshold includes first
Threshold value；Generating corresponding prompt messages includes: to generate the first alarm in the case where temperature gap is more than first threshold and mention
Show information, wherein the first prompt messages are adjusted Steam Turbine for prompting.
Further, historic steam temperature includes the vapor (steam) temperature in the second preset time period；Preset threshold includes second
Threshold value and third threshold value；Generating corresponding prompt messages includes: to generate in the case where temperature gap is more than second threshold
Second prompt messages, wherein the second prompt messages are adjusted Steam Turbine for prompting；It is super in temperature gap
In the case where crossing third threshold value, third prompt messages are generated, wherein third prompt messages are for prompting to wait to vapour
Wheel unit carries out beating gate stop-start.
Further, in the case where temperature gap is more than third threshold value, the above method further include: be based on current steam temperature
Degree determines corresponding vapor temperature signal detection quality；Obtain the rate of change of current steam temperature；Judge vapor temperature signal
Detect whether quality is more than preset, whether rate of change is more than scheduled rate, wherein preset and scheduled rate are used
It is valid data in characterizing current steam temperature；If it is preset that vapor temperature signal, which detects quality, and rate of change is not
More than scheduled rate, then the 4th prompt messages are generated, wherein the 4th prompt messages are for prompting immediately to steam turbine
Group carries out beating gate stop-start.
Further, it is being based on current steam temperature and historic steam temperature, is judging whether current steam temperature meets report
Before alert condition, the above method further include: be based on current steam temperature, determine corresponding vapor temperature signal detection quality；It obtains
Take the rate of change of current steam temperature；Judge whether vapor temperature signal detection quality is preset, and whether is rate of change
More than scheduled rate；If it is preset that vapor temperature signal, which detects quality, and rate of change is less than scheduled rate, then base
In current steam temperature and historic steam temperature, judge whether current steam temperature meets alert if.
It further, is not preset or rate of change more than scheduled rate in vapor temperature signal detection quality
In the case of, generate the 5th prompt messages, wherein the 5th prompt messages are for prompting the corresponding inspection of current steam temperature
Measuring point breaks down.
According to another aspect of an embodiment of the present invention, a kind of warning device of the vapor (steam) temperature of Steam Turbine is additionally provided,
It include: acquisition module, for obtaining the current steam temperature and historic steam temperature of Steam Turbine；Judgment module, for being based on
Current steam temperature and historic steam temperature, judge whether current steam temperature meets alert if；Generation module, for working as
In the case that preceding vapor (steam) temperature meets alert if, corresponding prompt messages are generated.
According to another aspect of an embodiment of the present invention, a kind of alarm system of the vapor (steam) temperature of Steam Turbine is additionally provided,
It include: acquisition device, for acquiring the current steam temperature of Steam Turbine；Processor is connect with acquisition device, is gone through for obtaining
History vapor (steam) temperature is based on current steam temperature and historic steam temperature, judges whether current steam temperature meets alert if, and
In the case where current steam temperature meets alert if, corresponding prompt messages are generated.
Further, processor includes: time delay module, is connect with acquisition device, for prolonging to current steam temperature
When handle, obtain historic steam temperature；Selecting module is connect with time delay module, for obtaining the maximum in historic steam temperature
Vapor (steam) temperature；Addition module is connect with acquisition device and selecting module, for obtaining maximum vapor (steam) temperature and current steam temperature
Temperature gap；Comparison module is connect with addition module, for judging whether temperature gap is more than preset threshold, in temperature difference
In the case that value is more than preset threshold, determine that current steam temperature meets alert if.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, storage medium includes the journey of storage
Sequence, wherein equipment where control storage medium executes the alarm side of the vapor (steam) temperature of above-mentioned Steam Turbine in program operation
Method.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, processor is used to run program,
In, program executes the alarm method of the vapor (steam) temperature of above-mentioned Steam Turbine when running.
In embodiments of the present invention, after the current steam temperature and historic steam temperature for getting Steam Turbine, base
In current steam temperature and historic steam temperature, judge whether current steam temperature meets alert if, in current steam temperature
In the case where meeting alert if, corresponding prompt messages are generated, to realize that Steam Turbine temperature declines automatic alarm
Purpose.Compared with prior art, to the Steam Turbine for being configured with ABB scattered control system, main, reheated steam temperature may be implemented
Degree declines 50 DEG C of automatic alarms suddenly in 10min, to reach accurate, quickly and reliably alarm, improves the peace of Steam Turbine
Full technical effect, and then the vapor (steam) temperature alarm accuracy for solving Steam Turbine in the prior art is low, the skill of poor reliability
Art problem.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the alarm method of the vapor (steam) temperature of Steam Turbine according to an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the warning device of the vapor (steam) temperature of Steam Turbine according to an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of the alarm system of the vapor (steam) temperature of Steam Turbine according to an embodiment of the present invention；
Fig. 4 is that a kind of configuration of the alarm system of the vapor (steam) temperature of optional Steam Turbine according to an embodiment of the present invention is patrolled
Collect schematic diagram；
Fig. 5 is a kind of parameter setting schematic diagram of optional FC58 function code according to an embodiment of the present invention；
Fig. 6 is a kind of parameter setting schematic diagram of optional FC15 function code according to an embodiment of the present invention；
Fig. 7 is a kind of parameter setting schematic diagram of optional FC30 function code according to an embodiment of the present invention；
Fig. 8 is a kind of parameter setting schematic diagram of optional FC45 function code according to an embodiment of the present invention.
Wherein, include following appended drawing reference in above-mentioned attached drawing:
41, temperature signal；42, delay block；43, analog quantity general election block；44, adder block is inputted；45, adder block is inputted；46,
High/low comparator；47, high/low comparator；48, high/low comparator；49, AND gate；410, OR-gate；411, analog quantity makes an exception
Report；412, quality testing module；413, speed limiting device.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of the alarm method of the vapor (steam) temperature of Steam Turbine is provided, is needed
Illustrate, step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes, although also, logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Fig. 1 is a kind of flow chart of the alarm method of the vapor (steam) temperature of Steam Turbine according to an embodiment of the present invention, such as Fig. 1
Shown, this method comprises the following steps:
Step S102 obtains the current steam temperature and historic steam temperature of Steam Turbine.
Specifically, above-mentioned Steam Turbine can be the Steam Turbine of configuration ABB scattered control system, above-mentioned current steaming
Stripping temperature may include main steam temperature and reheat steam temperature, and above-mentioned historic steam temperature can be acquisition in a period of time
The main steam temperature and reheat steam temperature arrived, for example, it may be main steam temperature and reheat steam temperature in 10min.
It should be noted that historic steam temperature can pass through the time delay to the current steam temperature progress different delayed time time
It obtains, the interval between delay time can be used as the sampling interval of acquisition historic steam temperature, in order to which accuracy is higher, simultaneously
Controller memory is saved, the interval between delay time can be 5s, and temperature error is at 0.5 DEG C or less.
Step S104 is based on current steam temperature and historic steam temperature, judges whether current steam temperature meets alarm
Condition.
Specifically, above-mentioned alert if can be the condition for referring to determine whether current steam temperature declines suddenly.
Step S106 generates corresponding prompt messages in the case where current steam temperature meets alert if.
Specifically, above-mentioned prompt messages can be used for prompting the different conditions of Steam Turbine, example to operations staff
Such as, it may include the current steam temperature of Steam Turbine, can also include the control information controlled Steam Turbine；It can be with
Previously according to the warning message of different conditions setting multiple grades, higher grade, and it is more serious to illustrate that accident occurs in Steam Turbine, is
Accident further expansion is avoided, can be taken appropriate measures to Steam Turbine.
In a kind of optional scheme, in order to judge automatically whether main, reheat steam temperature declines suddenly, it can obtain in real time
The current steam temperature and historic steam temperature of Steam Turbine are taken, and is judged that judgement is worked as based on the vapor (steam) temperature got
Whether preceding vapor (steam) temperature declines suddenly, and when judging that current steam temperature declines suddenly, corresponding warning note can be generated
Information provides judgment basis in time for operations staff, so that operations staff quickly takes corresponding measure, prevents fault spread.
Above-described embodiment through the invention, the current steam temperature and historic steam temperature for getting Steam Turbine it
Afterwards, it is based on current steam temperature and historic steam temperature, judges whether current steam temperature meets alert if, in current steam
In the case that temperature meets alert if, corresponding prompt messages are generated, to realize that the decline of Steam Turbine temperature is automatic
The purpose of alarm.Compared with prior art, to the Steam Turbine for being configured with ABB scattered control system, main, reheating may be implemented and steam
Stripping temperature declines 50 DEG C of automatic alarms suddenly in 10min, to reach accurate, quickly and reliably alarm, improves Steam Turbine
Safety technical effect, and then solve Steam Turbine in the prior art vapor (steam) temperature alarm accuracy it is low, poor reliability
The technical issues of.
Optionally, in the above embodiment of the present invention, step S104 is based on current steam temperature and historic steam temperature, sentences
Whether disconnected current steam temperature meets alert if, comprising:
Step S1041 obtains the maximum vapor (steam) temperature in historic steam temperature.
Specifically, since the vapor (steam) temperature meeting of Steam Turbine is fluctuated up and down, in order to more accurately judge Steam Turbine
Whether current steam temperature declines suddenly, the maximum vapor (steam) temperature in available historic steam temperature, steams by comparing current
Stripping temperature and maximum vapor (steam) temperature, that is, can determine whether current steam temperature declines suddenly.
Step S1042 obtains the temperature gap of maximum vapor (steam) temperature and current steam temperature.
Step S1043 judges whether temperature gap is more than preset threshold.
Specifically, above-mentioned preset threshold can be the temperature difference threshold value declined suddenly for determining current steam temperature,
If the temperature gap of maximum vapor (steam) temperature and current steam temperature is greater than the temperature difference threshold value, current steam temperature can be determined
Degree decline suddenly.
Step S1044 determines that current steam temperature meets alarm bar in the case where temperature gap is more than preset threshold
Part.
In a kind of optional scheme, after the current steam temperature and historic steam temperature for getting Steam Turbine,
It can be by the way that the maximum vapor (steam) temperature in current steam temperature and historic steam temperature be compared, so that it is determined that current steam
Whether temperature declines suddenly, if current steam temperature is more more than the decline of maximum vapor (steam) temperature, can determine current steam temperature
Degree decline suddenly, needs to generate prompt messages, operations staff is prompted to take appropriate measures.
Optionally, in the above embodiment of the present invention, historic steam temperature includes the vapor (steam) temperature in the first preset time period；
Preset threshold includes first threshold；Step S106, generating corresponding prompt messages includes:
Step S1062 generates the first prompt messages in the case where temperature gap is more than first threshold, wherein the
One prompt messages are adjusted Steam Turbine for prompting.
Specifically, the first above-mentioned preset time period can be 1min, and above-mentioned first threshold can be 10 DEG C.
In a kind of optional scheme, in order to improve the safety of Steam Turbine, collected steaming in available 1min
Stripping temperature, judges whether current steam temperature declines 10 DEG C in 1min, that is, judging in 1min in historic steam temperature most
Whether the difference of big vapor (steam) temperature and current steam temperature is more than or equal to 10 DEG C, if it is, determining that current steam temperature exists
10 DEG C of decline in 1min, can carry out secondary alarm, generate the first prompt messages, and operations staff is prompted to take corresponding tune
Whole measure prevents current steam sudden temperature drop.
Optionally, in the above embodiment of the present invention, historic steam temperature includes the vapor (steam) temperature in the second preset time period；
Preset threshold includes second threshold and third threshold value；Step S106, generating corresponding prompt messages includes:
Step S1064 generates the second prompt messages in the case where temperature gap is more than second threshold, wherein the
Two prompt messages are adjusted Steam Turbine for prompting.
Step S1066 generates third prompt messages in the case where temperature gap is more than third threshold value, wherein the
Three prompt messages carry out Steam Turbine to beat gate stop-start for prompting to wait.
Specifically, the second above-mentioned preset time period can be 10min, and above-mentioned second threshold can be 40 DEG C, above-mentioned
Third threshold value can be 50 DEG C.
In a kind of optional scheme, collected vapor (steam) temperature in available 10min judges that current steam temperature is
It is no to decline 40 DEG C in 10min, that is, judging the maximum vapor (steam) temperature and current steam temperature in 10min in historic steam temperature
Whether the difference of degree is more than or equal to 40 DEG C, if it is, determining that current steam temperature declines 40 DEG C in 10min, can carry out
Secondary alarm generates the second prompt messages, prompts operations staff to pay close attention to deviation, checks tendency chart, continue to take
Corresponding regulating measures prevent the further bust of current steam temperature, while carrying out and playing gate stop-start preparation；Further, judgement is worked as
Whether preceding vapor (steam) temperature declines 50 DEG C in 10min, that is, judging the maximum vapor (steam) temperature in 10min in historic steam temperature
Whether it is more than or equal to 50 DEG C with the difference of current steam temperature, if it is, determining that current steam temperature declines 50 in 10min
DEG C, secondary alarm can be carried out, third prompt messages are generated, operations staff is prompted to prepare to beat gate stop-start.
Optionally, in the above embodiment of the present invention, in the case where temperature gap is more than third threshold value, this method is also wrapped
It includes:
Step S110 is based on current steam temperature, determines corresponding vapor temperature signal detection quality.
Specifically, in order to avoid measuring point failure influences the normal judgement alarmed Steam Turbine vapor (steam) temperature, can pass through
Vapor temperature signal detection quality is judged, when judging vapor temperature signal detection quality is good quality, determines acquisition
The vapor (steam) temperature arrived is that valid data namely measuring point are normal；When judging vapor temperature signal detection quality is bad quality, really
Fixed collected vapor (steam) temperature is invalid data namely measuring point failure.
Step S112 obtains the rate of change of current steam temperature.
It specifically, can be to steaming in order to avoid measuring point failure influences the normal judgement alarmed Steam Turbine vapor (steam) temperature
The rate of change of stripping temperature is judged, when the variation of vapor (steam) temperature is smaller, that is, determination collects when rate of change is smaller
Vapor (steam) temperature be valid data namely measuring point it is normal；When changing greatly for vapor (steam) temperature, that is, when rate of change is larger, really
Fixed collected vapor (steam) temperature is invalid data namely measuring point failure.
Step S114 judges whether vapor temperature signal detection quality is preset, and whether rate of change is more than default
Rate, wherein preset and scheduled rate are used to characterize current steam temperature to be valid data.
Specifically, above-mentioned preset can be good quality, and above-mentioned scheduled rate can be vapor (steam) temperature and normally become
Change corresponding maximum rate of change, if rate of change is more than scheduled rate, it is determined that vapor (steam) temperature is abnormal.
Step S116, if vapor temperature signal detection quality is preset, and rate of change is less than scheduled rate,
Then generate the 4th prompt messages, wherein the 4th prompt messages carry out dozen lock to Steam Turbine immediately for prompt and stop
Machine.
In a kind of optional scheme, in order to avoid collected current steam temperature is invalid data, influence to steamer
The normal judgement of unit vapor (steam) temperature alarm further judges after determining that current steam temperature declines 50 DEG C in 10min
Whether the corresponding vapor temperature signal detection quality of current steam temperature is good quality, and whether pace of change transfinites, if steamed
Stripping temperature signal detection quality is good quality, and pace of change does not transfinite, that is, determine that current steam temperature is valid data,
It can then determine current steam temperature bust in 10min, carry out level-one alarm immediately, generate the 4th warning message, prompt fortune
Administrative staff beats gate stop-start immediately, prevents Steam Turbine from damaging.
It should be noted that then current steam temperature cannot function as beating if it is determined that current steam temperature is invalid data
The foundation of gate stop-start, and secondary alarm can be carried out, the 5th prompt messages are generated, prompt operations staff's measuring point late
Barrier need to notify thermal technology personnel to handle.
Optionally, in the above embodiment of the present invention, in step S104, it is based on current steam temperature and historic steam temperature,
Before judging whether current steam temperature meets alert if, this method further include:
Step S120 is based on current steam temperature, determines corresponding vapor temperature signal detection quality.
Step S122 obtains the rate of change of current steam temperature.
Step S124 judges whether vapor temperature signal detection quality is preset, and whether rate of change is more than default
Rate.
Step S126, if vapor temperature signal detection quality is preset, and rate of change is less than scheduled rate,
It is then based on current steam temperature and historic steam temperature, judges whether current steam temperature meets alert if.
In a kind of optional scheme, in order to avoid collected current steam temperature is invalid data, influence to steamer
The normal judgement of unit vapor (steam) temperature alarm first determines whether that current steam temperature is corresponding after collecting current steam temperature
Vapor temperature signal detection quality whether be good quality, and whether pace of change transfinites, if vapor temperature signal detects product
Matter is good quality, and pace of change does not transfinite, that is, determining that current steam temperature is valid data, then can further be judged
Current steam temperature whether bust.
It optionally, is not preset in vapor temperature signal detection quality, or variation speed in the above embodiment of the present invention
In the case that rate is more than scheduled rate, the 5th prompt messages are generated, wherein the 5th prompt messages are current for prompting
The corresponding test point of vapor (steam) temperature breaks down.
In a kind of optional scheme, if the corresponding vapor temperature signal detection quality of current steam temperature is bad matter
Amount or pace of change transfinite, that is, determining that current steam temperature is invalid data, then can carry out secondary alarm, generate the 5th
Prompt messages prompt operations staff's measuring point failed, and thermal technology personnel need to be notified to handle；The alarm of the measuring point cannot simultaneously
As the foundation for beating gate stop-start.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of the warning device of the vapor (steam) temperature of Steam Turbine is provided.
Fig. 2 is a kind of schematic diagram of the warning device of the vapor (steam) temperature of Steam Turbine according to an embodiment of the present invention, such as Fig. 2
Shown, which includes:
Module 22 is obtained, for obtaining the current steam temperature and historic steam temperature of Steam Turbine.
Specifically, above-mentioned Steam Turbine can be the Steam Turbine of configuration ABB scattered control system, above-mentioned current steaming
Stripping temperature may include main steam temperature and reheat steam temperature, and above-mentioned historic steam temperature can be acquisition in a period of time
The main steam temperature and reheat steam temperature arrived, for example, it may be main steam temperature and reheat steam temperature in 10min.
It should be noted that historic steam temperature can pass through the time delay to the current steam temperature progress different delayed time time
It obtains, the interval between delay time can be used as the sampling interval of acquisition historic steam temperature, in order to which accuracy is higher, simultaneously
Controller memory is saved, the interval between delay time can be 5s, and temperature error is at 0.5 DEG C or less.
Judgment module 24 judges whether current steam temperature is full for being based on current steam temperature and historic steam temperature
Sufficient alert if.
Specifically, above-mentioned alert if can be the condition for referring to determine whether current steam temperature declines suddenly.
Generation module 26, for generating corresponding warning note in the case where current steam temperature meets alert if
Information.
Specifically, above-mentioned prompt messages can be used for prompting the different conditions of Steam Turbine, example to operations staff
Such as, it may include the current steam temperature of Steam Turbine, can also include the control information controlled Steam Turbine；It can be with
Previously according to the warning message of different conditions setting multiple grades, higher grade, and it is more serious to illustrate that accident occurs in Steam Turbine, is
Accident further expansion is avoided, can be taken appropriate measures to Steam Turbine.
In a kind of optional scheme, in order to judge automatically whether main, reheat steam temperature declines suddenly, it can obtain in real time
The current steam temperature and historic steam temperature of Steam Turbine are taken, and is judged that judgement is worked as based on the vapor (steam) temperature got
Whether preceding vapor (steam) temperature declines suddenly, and when judging that current steam temperature declines suddenly, corresponding warning note can be generated
Information provides judgment basis in time for operations staff, so that operations staff quickly takes corresponding measure, prevents fault spread.
Above-described embodiment through the invention, the current steam temperature and historic steam temperature for getting Steam Turbine it
Afterwards, it is based on current steam temperature and historic steam temperature, judges whether current steam temperature meets alert if, in current steam
In the case that temperature meets alert if, corresponding prompt messages are generated, to realize that the decline of Steam Turbine temperature is automatic
The purpose of alarm.Compared with prior art, to the Steam Turbine for being configured with ABB scattered control system, main, reheating may be implemented and steam
Stripping temperature declines 50 DEG C of automatic alarms suddenly in 10min, to reach accurate, quickly and reliably alarm, improves Steam Turbine
Safety technical effect, and then solve Steam Turbine in the prior art vapor (steam) temperature alarm accuracy it is low, poor reliability
The technical issues of.
Embodiment 3
According to embodiments of the present invention, a kind of embodiment of the alarm system of the vapor (steam) temperature of Steam Turbine is provided.
Fig. 3 is a kind of schematic diagram of the alarm system of the vapor (steam) temperature of Steam Turbine according to an embodiment of the present invention, such as Fig. 3
Shown, which includes:
Acquisition device 32, for acquiring the current steam temperature of Steam Turbine.
Specifically, above-mentioned Steam Turbine can be the Steam Turbine of configuration ABB scattered control system, above-mentioned acquisition dress
The device that can be the mV signal for receiving thermocouple temperature sensor output is set, as shown in temperature signal 41 in Fig. 4, above-mentioned works as
Preceding vapor (steam) temperature may include main steam temperature and reheat steam temperature, and above-mentioned historic steam temperature can be in a period of time
Collected main steam temperature and reheat steam temperature, for example, it may be main steam temperature and reheat steam temperature in 10min.
Processor 34, connect with acquisition device, for obtaining historic steam temperature, is steamed based on current steam temperature and history
Stripping temperature, judges whether current steam temperature meets alert if, and in the case where current steam temperature meets alert if,
Generate corresponding prompt messages.
Specifically, above-mentioned alert if can be the condition for referring to determine whether current steam temperature declines suddenly；
Above-mentioned prompt messages can be used for prompting the different conditions of Steam Turbine to operations staff, for example, may include steamer
The current steam temperature of unit can also include the control information controlled Steam Turbine；It can be previously according to different shapes
The warning message of multiple grades is arranged in state, and higher grade, and it is more serious to illustrate that accident occurs in Steam Turbine, in order to avoid accident is into one
Step expands, and can take appropriate measures to Steam Turbine.
It should be noted that historic steam temperature can pass through the time delay to the current steam temperature progress different delayed time time
It obtains, the interval between delay time can be used as the sampling interval of acquisition historic steam temperature, in order to which accuracy is higher, simultaneously
Controller memory is saved, the interval between delay time can be 5s, and temperature error is at 0.5 DEG C or less.
In a kind of optional scheme, in order to judge automatically whether main, reheat steam temperature declines suddenly, it can obtain in real time
The current steam temperature and historic steam temperature of Steam Turbine are taken, and is judged that judgement is worked as based on the vapor (steam) temperature got
Whether preceding vapor (steam) temperature declines suddenly, and when judging that current steam temperature declines suddenly, corresponding warning note can be generated
Information provides judgment basis in time for operations staff, so that operations staff quickly takes corresponding measure, prevents fault spread.
Above-described embodiment through the invention, after the current steam temperature for collecting Steam Turbine by acquisition device,
Available historic steam temperature, and it is based on current steam temperature and historic steam temperature, judge whether current steam temperature is full
Sufficient alert if generates corresponding prompt messages in the case where current steam temperature meets alert if, to realize
The purpose of Steam Turbine temperature decline automatic alarm.Compared with prior art, to the steam turbine for being configured with ABB scattered control system
Group may be implemented main, reheat steam temperature and decline 50 DEG C of automatic alarms suddenly in 10min, thus reach it is accurate, quick, can
It alarms by ground, improves the technical effect of the safety of Steam Turbine, and then solve the vapor (steam) temperature of Steam Turbine in the prior art
The technical issues of accuracy of alarming is low, poor reliability.
Optionally, in the above embodiment of the present invention, processor includes:
Time delay module is connect with acquisition device, for carrying out delay process to current steam temperature, obtains historic steam temperature
Degree.
Specifically, acquire 10min within all historic steam temperature, be by 5s, 10s, 15s, 20s ...,
585s, 590s, 595s, 600s etc. amount to what 120 delay time delay modules were realized, as shown in the delay block 42 in Fig. 4.5s's
The current output value of delay delay block is the data before 5s, and the current output value of the delay delay block of 10s is the number before 10s
According to ... ... and so on, the current output value of the delay delay block of 600s is the data before 600s.
Selecting module is connect with time delay module, for obtaining the maximum vapor (steam) temperature in historic steam temperature.
Specifically, above-mentioned selecting module can be the general election module in ABB scattered control system, such as the simulation in Fig. 4
It measures shown in general election block 43, since the vapor (steam) temperature meeting of Steam Turbine is fluctuated up and down, in order to more accurately judge Steam Turbine
Whether current steam temperature declines suddenly, the maximum vapor (steam) temperature in available historic steam temperature, steams by comparing current
Stripping temperature and maximum vapor (steam) temperature, that is, can determine whether current steam temperature declines suddenly.
Addition module is connect with acquisition device and selecting module, for obtaining maximum vapor (steam) temperature and current steam temperature
Temperature gap.
Specifically, above-mentioned selecting module can be the addition module in ABB scattered control system, such as the input in Fig. 4
Shown in adder block 44 and 45.
Comparison module is connect with addition module, super in temperature gap for judging whether temperature gap is more than preset threshold
In the case where crossing preset threshold, determine that current steam temperature meets alert if.
Specifically, above-mentioned comparison module can be the high/low comparator in ABB scattered control system, in Fig. 4
Shown in high/low comparator 46,47 and 48.Above-mentioned preset threshold can be the temperature declined suddenly for determining current steam temperature
Poor threshold value is spent, if the temperature gap of maximum vapor (steam) temperature and current steam temperature is greater than the temperature difference threshold value, can be determined
Current steam temperature declines suddenly.
In a kind of optional scheme, after the current steam temperature and historic steam temperature for getting Steam Turbine,
It can be by the way that the maximum vapor (steam) temperature in current steam temperature and historic steam temperature be compared, so that it is determined that current steam
Whether temperature declines suddenly, if current steam temperature is more more than the decline of maximum vapor (steam) temperature, can determine current steam temperature
Degree decline suddenly, needs to generate prompt messages, operations staff is prompted to take appropriate measures.
It should be noted that above-mentioned time delay module, selecting module, addition module and comparison module need in actual use
Corresponding function code is called to realize in ABB configuration software, for example, the corresponding function code of time delay module is that FC58 (prolong by analog quantity
When block), the corresponding function code of selecting module is FC10 (analog quantity general election block), the corresponding function code of addition module is that (2 is defeated by FC15
Enter adder block), the corresponding function code of comparison module is FC12 (high/low comparator).
Detailed configuration logic figure is as shown in Figure 4, it is also necessary to call FC38 function code (4- inputs AND gate 49), FC40 function
Code (4- inputs OR-gate 410), FC30 function code (analog quantity exception report 411), FC45 function code (digital quantity exception report),
FC31 (quality testing module 412) and FC08 (speed limiting device 413).
It should also be noted that, secondary alarm 1 in Fig. 4 or that door 410 exports corresponds to the 5th above-mentioned warning note
Information, the secondary alarm 2 that high/low comparator 46 exports correspond to the first above-mentioned prompt messages, and high/low comparator 47 is defeated
Secondary alarm 3 out corresponds to the second above-mentioned prompt messages, and the secondary alarm 4 that high/low comparator 48 exports corresponds to
Above-mentioned third prompt messages, with door 49 export level-one alarm correspond to the 4th above-mentioned prompt messages, it is defeated
Main steam temperature deviation can also be exported by entering adder block 45.
Part function code parameter setting in Fig. 4 is illustrated below:
FC58 function code: realize 5 seconds parameter settings prolonged: S4=5, S5=1, parameter setting schematic diagram are as shown in Figure 5；It is real
Existing 10 seconds parameter settings prolonged: S4=10, S5=1；... and so on, realize the parameter setting of 600S i.e. 10 minute: S4
=600, S5=1.
FC15 function code: realize the parameter setting of " output=S1-S2 ": S3=1, S4=-1, parameter setting schematic diagram is such as
Shown in Fig. 6；Realize the parameter setting of " output=S2-S1 ": S3=-1, S4=-1.
FC31 function code: realize that the quality of the analog quantity and on-off model that input to all I/O modules judges that four defeated
Entering the either signal in signal is bad point, then output is 1.
FC30 function code: realize analog signals in the display and alarm of DCS picture.It realizes and " shows steam in DCS picture
The configuration of sudden temperature drop alarm temperature deviation " is arranged: S2=4 (Unit Index, if S2 is set as 4 when the index of regulation DEG C
4), S3=0 (signal range zero-bit), S4=70 (signal range full scale), S5=40 (signal height report value, if 40 DEG C of alarms, S5
It is set as 40), S6=0 (the low report value of signal, if 0 DEG C of alarm, S6 are set as 0；If not alarming, S6 is set as -9999)；
TAGNAME (tag name) and when TAGDESC (label description) configuration, edit, for the ease of showing that parameter setting is shown in DCS picture
It is intended to as shown in Figure 7.
FC45 function code: realize on-off model in the display and alarm of DCS picture.It realizes " main steam temperature 10 minutes
The configuration setting of 50 degree of interior bust alarms ": S2=2 (does not alarm), S2=1 (on-off model is 1 alarm), S2=0 (switch
Amount signal is 0 alarm)；TAGNAME (tag name) and when TAGDESC (label description) configuration, edit, for the ease of drawing in DCS
Face shows that parameter setting schematic diagram is as shown in Figure 8.
By calling corresponding ABB configuration software function code according to configuration logic schematic diagram shown in Fig. 4, and to function
Code parameter carries out configuration setting, completes the alarm side that configuration is the vapor (steam) temperature of the Steam Turbine in executable above-described embodiment 1
Method.
Embodiment 4
According to embodiments of the present invention, a kind of embodiment of storage medium is provided, storage medium includes the program of storage,
In, in program operation, equipment where control storage medium executes the report of the vapor (steam) temperature of the Steam Turbine in above-described embodiment 1
Alarm method.
Embodiment 5
According to embodiments of the present invention, a kind of embodiment of processor is provided, processor is for running program, wherein journey
The alarm method of the vapor (steam) temperature of the Steam Turbine in above-described embodiment 1 is executed when sort run.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (12)
1. a kind of alarm method of the vapor (steam) temperature of Steam Turbine characterized by comprising
Obtain the current steam temperature and historic steam temperature of Steam Turbine；
Based on the current steam temperature and the historic steam temperature, judge whether the current steam temperature meets alarm bar
Part；
In the case where the current steam temperature meets alert if, corresponding prompt messages are generated.
2. the method according to claim 1, wherein being based on the current steam temperature and the historic steam temperature
Degree, judges whether the current steam temperature meets alert if, comprising:
Obtain the maximum vapor (steam) temperature in the historic steam temperature；
Obtain the temperature gap of the maximum vapor (steam) temperature and the current steam temperature；
Judge whether the temperature gap is more than preset threshold；
In the case where the temperature gap is more than the preset threshold, determine that the current steam temperature meets the alarm bar
Part.
3. according to the method described in claim 2, it is characterized in that, the historic steam temperature includes in the first preset time period
Vapor (steam) temperature；The preset threshold includes first threshold；Generating corresponding prompt messages includes:
In the case where the temperature gap is more than the first threshold, the first prompt messages are generated, wherein described first
Prompt messages are adjusted the Steam Turbine for prompting.
4. according to the method described in claim 2, it is characterized in that, the historic steam temperature includes in the second preset time period
Vapor (steam) temperature；The preset threshold includes second threshold and third threshold value；Generating corresponding prompt messages includes:
In the case where the temperature gap is more than the second threshold, the second prompt messages are generated, wherein described second
Prompt messages are adjusted the Steam Turbine for prompting；
In the case where the temperature gap is more than the third threshold value, third prompt messages are generated, wherein the third
Prompt messages carry out Steam Turbine to beat gate stop-start for prompting to wait.
5. according to the method described in claim 4, it is characterized in that, the case where the temperature gap is more than the third threshold value
Under, the method also includes:
Based on the current steam temperature, corresponding vapor temperature signal detection quality is determined；
Obtain the rate of change of the current steam temperature；
Judge whether the vapor temperature signal detection quality is preset, and whether the rate of change is more than scheduled rate,
Wherein, the preset and the scheduled rate are used to characterize the current steam temperature to be valid data；
If the vapor temperature signal detection quality is the preset, and the rate of change is less than the default speed
Rate then generates the 4th prompt messages, wherein the 4th prompt messages immediately carry out Steam Turbine for prompting
Beat gate stop-start.
6. the method according to claim 1, wherein being based on the current steam temperature and the historic steam
Temperature, before judging whether the current steam temperature meets alert if, the method also includes:
Based on the current steam temperature, corresponding vapor temperature signal detection quality is determined；
Obtain the rate of change of the current steam temperature；
Judge whether the vapor temperature signal detection quality is preset, and whether the rate of change is more than scheduled rate；
If the vapor temperature signal detection quality is the preset, and the rate of change is less than the default speed
Rate is then based on the current steam temperature and the historic steam temperature, judges whether the current steam temperature meets alarm
Condition.
7. according to the method described in claim 6, it is characterized in that, not being described pre- in vapor temperature signal detection quality
If generating the 5th prompt messages, wherein described in the case that quality or the rate of change are more than the scheduled rate
5th prompt messages are for prompting the corresponding test point of the current steam temperature to break down.
8. a kind of warning device of the vapor (steam) temperature of Steam Turbine characterized by comprising
Module is obtained, for obtaining the current steam temperature and historic steam temperature of Steam Turbine；
Judgment module judges the current steam temperature for being based on the current steam temperature and the historic steam temperature
Whether alert if is met；
Generation module, in the case where the current steam temperature meets alert if, generating corresponding warning note letter
Breath.
9. a kind of alarm system of the vapor (steam) temperature of Steam Turbine characterized by comprising
Acquisition device, for acquiring the current steam temperature of Steam Turbine；
Processor is connect with the acquisition device, for obtaining historic steam temperature, based on the current steam temperature and described
Historic steam temperature, judges whether the current steam temperature meets alert if, and meets in the current steam temperature and report
In the case where alert condition, corresponding prompt messages are generated.
10. system according to claim 9, which is characterized in that the processor includes:
Time delay module is connect with the acquisition device, for carrying out delay process to the current steam temperature, obtains described go through
History vapor (steam) temperature；
Selecting module is connect with the time delay module, for obtaining the maximum vapor (steam) temperature in the historic steam temperature；
Addition module is connect with the acquisition device and the selecting module, for obtaining the maximum vapor (steam) temperature and described
The temperature gap of current steam temperature；
Comparison module is connect with the addition module, for judging whether the temperature gap is more than preset threshold, in the temperature
Difference is spent more than in the case where the preset threshold, determines that the current steam temperature meets the alert if.
11. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require any one of 1 to 7 described in Steam Turbine vapor (steam) temperature
Alarm method.
12. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 7 described in Steam Turbine vapor (steam) temperature alarm method.
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