CN109701182A - Novel flexible DC converter based on two from three mode becomes fire-fighting system - Google Patents
Novel flexible DC converter based on two from three mode becomes fire-fighting system Download PDFInfo
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Abstract
The present invention relates to a kind of fire-fightings become for the flexible direct current change of current to control start-up technique, especially a kind of novel flexible DC converter based on two from three mode becomes fire-fighting system, including two sets of temperature sensing cables, increase temperature sensing cable wiring and winding that the valve side that the change of current becomes increases seat, three net side raising seat, ferrule boot positions on the original basis；There are also three sets of three sets of flame detectors, arrange a set of in a high position and are distributed two sets being lower than horizontal diagonal at the acoustic barrier that the change of current becomes；There are also fire-fighting logic control systems, three sets of flame detectors are exported using "or" logic as 1 alarm, then it is exported again with 2 sets of temperature sensing cable temperature alarmings according to the logic principle of " two from three ", the triggering starting fire plant fire extinguishing together with change of current change net side circuit breaker trip action.The present invention has the advantages that preventing malfunction again and preventing tripping, increase that defense controls is comprehensive, ensures flexible direct current converter station reliably, stable operation.
Description
Technical field
The present invention relates to a kind of fire-fightings become for the flexible direct current change of current to control start-up technique, especially a kind of to take based on three
The novel flexible DC converter of two modes becomes fire-fighting system.
Background technique
Core high voltage electric equipment is other than the IGBT converter valve for realizing cross, straight transformation in flexible direct current converter station,
Converter power transformer (hereinafter referred to as change of current change) is also one of core key equipment.In the prior art, the soft straight DC converter of high pressure
The related fire-fighting fire extinguishing measure for becoming configuration is most important, and it is usually referring to special that the flexible direct current converter station change of current, which becomes fire fighting extinguisher,
High voltage direct current station configures transformer synthetic foam sprinkler fire extinguishing system or water spray fire extinguishing system, includes two sets of cable formulas referring to attached drawing 1
Linear temperature sensitive cable, circuit breaker trip signal receiving unit and logical triggering device, two sets of cable linear temperature sensing cables
It is wrapped in the change of current with the double-deck distribution mode to become on apparatus body, conservator and petroleum pipeline, and the logical signal of two sets of temperature sensing cables
Output end is connect by a logic judgment device with the input terminal of logical triggering device, and circuit breaker trip signal receiving unit is then
It is connect with another input terminal of logical triggering device, when there is fire, two sets of temperature sensing cables issue logical signal, patrol at this time
It collects judgment means (logic sum) after the logical signal for receiving two sets of temperature sensing cables, sends trigger signal and filled to logical triggering
It sets, in addition circuit breaker trip signal receiving unit also sends change of current change net side breaker TRIPPED position signal and fills to logical triggering
It sets, logical triggering device sends triggering after receiving above-mentioned two signal and enables signals to change of current change fire plant, to start
Fire plant is put out a fire.
The control system of above-mentioned existing fire-fighting fire extinguishing has the following deficiencies: 1, the control of two sets of temperature sensing cable logic sums
Mode is malfunction in order to prevent, but the case where can equally bring tripping, regardless of being that malfunction or tripping can all cause to put out a fire
Not in time；2, the cause of fire is varied, although temperature sensing cable has been distributed among three most impacted places, this three
A place and nisi cause once fire occurs elsewhere, or even cause open fire not affect temperature-sensitive electricity for the moment but
Cable, so that it may be delayed fire extinguishing opportunity, largely effect on the reliable and stable operation of flexible direct current converter station.
Summary of the invention
There is provided it is an object of the invention to shortcoming according to prior art it is a kind of prevent malfunction prevent tripping,
Increase defense controls is comprehensive, ensures flexible direct current converter station reliably, the novel flexible based on two from three mode of stable operation
DC converter becomes fire-fighting system.
Purpose of the present invention is realized by following approach:
Novel flexible DC converter based on two from three mode becomes fire-fighting system, is characterized by, including form as follows:
1) two sets of cable linear temperature sensing cables, bilayer, which is distributed and is wrapped in the change of current, becomes ontology and various components, including the change of current becomes this
The valve side that body, conservator, petroleum pipeline, the change of current become increases seat, net side increases seat, ferrule boot；Every set temperature sensing cable is continuous point
Cloth, when winding, encounter bending part and are fixed by fire-retardant fixture；Every set temperature sensing cable has a logical signal output end；
2) three sets of flame detectors, arrangement installation are as follows:
First set flame detector is arranged in the fireproof explosion-proof wall center top of one side of converter power transformer, and investigative range includes
Conservator, valve side, net side and the neutral point current transformer sleeve pipe at the change of current place of getting higher and the change of current are lower the ontology at place；
Second set of flame detector and third set flame detector are separately mounted to
Plane is diagonally arranged, and mounting height is lower than the acoustic barrier that the change of current becomes, and investigative range includes that the change of current within acoustic barrier becomes this
Body；
Every set flame detector is provided with an alarming logic signal output end；
3) fire-fighting logic control system includes circuit breaker trip signal receiving unit, the first logic judgment unit, the second logic
Judging unit and logical triggering output unit；The alarming logic signal output end of three sets of flame detectors is sentenced with the first logic respectively
Disconnected unit connection, and the logical signal output end of two sets of cable linear temperature sensing cables is connect with the second logic judgment unit respectively,
The logical signal output end of the first logic judgment unit is also connect with the second logic judgment unit simultaneously；Second logic judgment unit
Logical signal output end and circuit breaker trip signal receiving unit signal output end respectively with logical triggering output unit
Connection；Logical triggering output unit trigger output end is connect with the start unit that the change of current becomes fire plant；
First logic judgment unit provides the outlet of logical signal using "or" logic: when in three sets of flame detectors at least
A set of transmission alarming logic signal, then the first logic judgment unit exports a logical signal to the second logic judgment unit；
Second logic judgment unit provides a logical signal outlet using "or" logic according to the logic principle of two from three: when two
At least two groups of sending logic signals are covered in cable linear temperature sensing cable and the first logic judgment unit to the second logic judgment list
Member, then the second logic judgment unit exports a logical signal to logical triggering output unit；
Logical triggering output unit provides a trigger signal outlet using "and" logic: when logical triggering output unit is received simultaneously
It is disconnected that the change of current that the logical signal and circuit breaker trip signal receiving unit exported to the second logic judgment unit issues becomes net side
Road device TRIPPED position logical signal issues the start unit that a trigger signal becomes fire plant to the change of current, starting fire-fighting dress
It sets and puts out a fire.
The continuously distributed of the temperature sensing cable refers to the connection winding of one line of all devices, and no tap is routed without branch.This hair
Bright technical essential includes:
The characteristic become first according to the change of current, when the change of current becomes the operation of normal electrification in high voltage, the valve side that the change of current becomes increases seat, net side increases
It is high that the components calorific value such as seat, ferrule boot does not have the change of current to become ontology, conservator, pipeline road, therefore in the routine techniques of this field simultaneously
It fire fighting monitoring range is not included in, but when equipment breaks down, these three positions will will appear insulating oil or equipment
There is fire behavior until temperature is excessively high to occur heating up in the unusual service conditions such as failure, insulation breakdown, and in addition these three positions have easily
Fire explosive medium -- oil of the transformer for insulation, therefore the present invention also causes fire former in addition to the characteristic become according to the change of current
Because having carried out multi-faceted consideration, to break through the conventional design specification of this field, the valve side for increasing exchange rheology increases seat, net
Side increases seat and ferrule boot carries out the effective wiring and winding of temperature-sensitive cable, so that the investigative range of change of current change is strengthened, it is real
The state of temperature for having showed comprehensive monitoring device achievees the purpose that fire alarm detection without dead zone, improves change of current change fire-fighting and goes out
The reliability of fiery system and comprehensive.
Secondly, the operation of equipment itself will lead to fever and generate, the in addition production of fire for high-tension electricity equipment
Life is all not since heating, it is also possible to since flame, it is therefore desirable to increase three sets of flame detectors.However according to soft
The characteristic of property DC converter station, structures, environmental condition and flame detector detection performance based on mountable flame detector,
Organic design is carried out to the installation site of flame detector: for the sound insulation to make a noise when the change of current becomes this running body to be isolated
Barrier Box-in is boundary, becomes ontology with the change of current as main monitored object, two sets of flames provided with high-order a set of and low level are visited
Survey device.Thus flame detector, which is utilized, has many advantages, such as that fast response time, detection range be remote, good environmental adaptability realizes pair
The Distribution Principles that the change of current becomes entire scope, focuses on apparatus body improve response speed and sound that the change of current becomes fire-fighting system
Answer reliability.
Finally, in conjunction with two sets of comprehensive temperature sensing cables of laying, devising two from three on the basis of increasing flame detector
The logic judgement mode of mode, i.e., when the change of current, which becomes region, fire occurs, 3 sets of flame detectors are using "or" logic as 1
Then alarm outlet is exported with 2 sets of temperature sensing cable temperature alarmings according to the logic principle of " two from three " again, last to change simultaneously
Rheology net side circuit breaker trip action, the fire fighting extinguisher outlet that fire alarm system starts change of current change automatically are carried out to fire
It puts out a fire.Monitoring condition is increased, and optimizes the automatic control of the change of current change zone fire alarm system on the basis of adding
Mode processed improves the change of current to effectively realize that i.e. preventing malfunction again prevents the automatic starting control logic outlet mode of tripping
Become the safe and stable operation of the performance of fire fighting extinguisher, reliable guarantee change of current change and converter station.
The present invention can be further specifically:
The flame detector be a kind of photosensitizing type fire detector infrared detector or ultraviolet detector, or
Person is ultraviolet, infrared compound flame detector.
Flame detector is used to respond the light characteristic of fire, i.e. the flashing frequency of the intensity of illumination of detection flame combustion and flame
A kind of fire detector of rate is divided into the purple sensitive to the ultraviolet radiation that flame medium wavelength is shorter according to the light characteristic of flame
External detector to the radiosensitive infrared detector of the longer infrared light of flame medium wavelength and combines the compound of two kinds of performances
Flame detector.Consider the characteristic of converter station of the present invention, preferably compound flame detector.The present invention is to flame detector
Requirement be: the angular field of view of detector be 90 degree ~ 120 degree, detection range be 30 meters ~ 50 meters.
In conclusion the present invention provides a kind of, the novel flexible DC converter based on two from three mode becomes fire-fighting fire extinguishing system
System extends the laying range of temperature sensing cable first, and the valve side for increasing change of current change increases seat, net side increases seat, ferrule boot three
The temperature sensing cable of position is routed and winding；Secondly increase by three sets of flame detectors, arrange a set of in a high position and become lower than the change of current
Acoustic barrier at horizontal diagonal be distributed two sets；Last 3 sets of flame detectors are exported using "or" logic as 1 alarm, so
It is exported again with 2 sets of temperature sensing cable temperature alarmings according to the logic principle of " two from three " afterwards, it is dynamic to become net side circuit breaker trip with the change of current
Make triggering starting fire plant fire extinguishing together.The present invention has the advantages that preventing malfunction again prevents tripping, increases defense controls
It is comprehensive, ensure that flexible direct current converter station is reliable, stable operation.
Detailed description of the invention
Fig. 1 is flexible direct current converter station fire-fighting control logic structural schematic diagram in the prior art described in background technique.
Fig. 2 is the fire-fighting that the novel flexible DC converter of the present invention based on two from three mode becomes fire-fighting system
Control logic structural schematic diagram.
Fig. 3 is the structural schematic diagram of temperature sensing cable of the present invention distribution laying；
Fig. 4 is the schematic view of facade structure of fire detector dispersed placement of the present invention；
Fig. 5 is the horizontal structure schematic diagram of fire detector dispersed placement of the present invention.
The present invention is described further below with reference to embodiment.
Specific embodiment
Most preferred embodiment:
Referring to attached drawing 2-5, the novel flexible DC converter of the present invention based on two from three mode becomes fire-fighting system, master
To include following composition:
1) referring to attached drawing 3, two sets of cable linear temperature sensing cables 1, bilayer, which is distributed and is wrapped in the change of current, becomes ontology and various components, removes
Original change of current becomes ontology 2, conservator 3, outside petroleum pipeline, further includes that the valve side that becomes of the change of current increases seat 5, net side increases seat 6, casing
Root 7；It can also include that neutral point increases seat 4 and its ferrule boot.Every set temperature sensing cable is continuously distributed, it is necessary to continuous nothing
Tap is routed without branch, and when winding encounters bending part and is fixed by fire-retardant fixture；Thus optimize and improve cable linear
The system of laying and area coverage of temperature sensing cable achieve the purpose that fire alarm detection without dead zone, the temperature of comprehensive monitoring device
Degree state improves the change of current and becomes in fire-fighting system the reliability of detector for fire alarm system and comprehensive.
Every set temperature sensing cable has a logical signal output end, when the temperature that temperature sensing cable is incuded is more than preset threshold value
When, logical signal output end exports logic control signal；
2) three sets of flame detectors, for arrangement referring to attached drawing 4 and attached drawing 5, specific installation is as follows:
First set flame detector 8 is arranged in 11 center top of fireproof explosion-proof wall of the one of side of converter power transformer, detection
Range includes that the conservator at the change of current place of getting higher, valve side, net side and neutral point current transformer sleeve pipe and the change of current are lower the ontology at place；
Second set of flame detector 9 and third set flame detector 10 are separately mounted to the change of current and become in two sides fireproof explosion-proof wall 11
Portion (middle position in height) becomes the diagonally arranged of center in plane with the change of current within the scope of acoustic barrier Box-in, peace
For dress height lower than the acoustic barrier Box-in that the change of current becomes, investigative range includes that the change of current within acoustic barrier Box-in becomes ontology.
The investigative range of every set flame detector can be found in its equipment connection diagram dotted line, detectable distance be 30 meters ~
50 meters of range, detection angle are 100 ° ~ 120 °.Three sets of flame detectors are all made of ultraviolet, infrared compound flame detector.
Every set flame detector is provided with an alarming logic signal output end, when flame detector senses flame or scintillation light letter
Number when, when flame intensity or optical signal flicker frequency are more than setting value, pass through alarming logic signal output end and export logic control
Signal processed.
3) referring to attached drawing 2, fire-fighting logic control system includes that circuit breaker trip signal receiving unit, the first logic are sentenced
Disconnected unit, the second logic judgment unit and logical triggering output unit；The alarming logic signal output end of three sets of flame detectors
It is connect respectively with the first logic judgment unit；And the logical signal output end of two sets of cable linear temperature sensing cables is patrolled with second respectively
Judging unit connection is collected, while the logical signal output end of the first logic judgment unit is also connect with the second logic judgment unit；
The signal output end of the logical signal output end of second logic judgment unit and circuit breaker trip signal receiving unit respectively with
The connection of logical triggering output unit；The start unit that logical triggering output unit trigger output end and the change of current become fire plant connects
It connects；
First logic judgment unit provides the outlet of logical signal using "or" logic: when in three sets of flame detectors at least
When a set of transmission alarming logic signal, i.e. the first logic judgment unit received signal source number n=1 or n > 1, the first logic is sentenced
Disconnected unit exports a logical signal to the second logic judgment unit；
Second logic judgment unit provides a logical signal outlet using "or" logic according to the logic principle of two from three: by two
Cover at least two groups of sending logic signals in three groups of signal sources that cable linear temperature sensing cable and the first logic judgment unit provide
To the second logic judgment unit, i.e. when the signal number N >=2 that the second logic judgment unit receives, then the second logic judgment list
Member exports a logical signal to logical triggering output unit；
Logical triggering output unit provides a trigger signal outlet using "and" logic: when logical triggering output unit is received simultaneously
It is disconnected that the change of current that the logical signal and circuit breaker trip signal receiving unit exported to the second logic judgment unit issues becomes net side
Road device TRIPPED position logical signal issues the start unit that a trigger signal becomes fire plant to the change of current, starting fire-fighting dress
It sets and puts out a fire.
Technical key point of the present invention includes the following:
1) cable linear temperature sensing cable becomes system of laying and area coverage on apparatus body in the change of current in perfect existing scheme,
Exchange rheology ontology, conservator, petroleum pipeline, valve side increases seat, net side increases seat, the components such as ferrule boot are effectively routed and
Winding, it is ensured that the change of current become fire detection without dead angle, temperature-sensitive cable system of laying after optimization can the comprehensive monitoring change of current become
Device temperature state improves the detection performance of temperature-sensitive cable.
2) present invention enriches the flexible straight change of current and becomes fire-fighting fire extinguishing dress by adding ultraviolet, infrared compound flame detecting
The device type for setting automatic fire alarm detection proposes ultraviolet, infrared compound flame detector in the change of current and becomes regional fire
The specific sensor distributing of alarm system, adds a small amount of equipment, has but achieved the purpose that the reliable monitoring device operating status of multi-angle.
3) automatic fire alarm system that the flexible direct current converter station change of current becomes fire fighting extinguisher is visited by line type temperature-sensitive cable
Examining system and ultraviolet, infrared composite flame detecting system two systems design, when the change of current, which becomes region, fire occurs, 3 sets purples
Outside, infrared composite detector flame alarm is exported using "or" logic as 1 alarm, with 2 sets of temperature sensing cable temperature alarmings
It is exported according to the logic principle of " two from three ", the flexible direct current change of current based on two from three mode after this optimization becomes fire-fighting fire extinguishing
System starts control logic designing technique automatically, not only can faulty action preventing but also can anti-tripping, it is ensured that the change of current becomes automatic fire alarm system
Correctness and sensitivity that the change of current becomes fire fighting extinguisher outlet are provided, ensure the safe and stable operation in flexible converter station.
The not described part of the present invention is same as the prior art.
Claims (2)
1. the novel flexible DC converter based on two from three mode becomes fire-fighting system, which is characterized in that including forming as follows:
1) two sets of cable linear temperature sensing cables, bilayer, which is distributed and is wrapped in the change of current, becomes ontology and various components, including the change of current becomes this
The valve side that body, conservator, petroleum pipeline, the change of current become increases seat, net side increases seat, ferrule boot；Every set temperature sensing cable is continuous point
Cloth, when winding, encounter bending part and are fixed by fire-retardant fixture；Every set temperature sensing cable has a logical signal output end；
2) three sets of flame detectors, arrangement installation are as follows:
First set flame detector is arranged in the fireproof explosion-proof wall center top of one side of converter power transformer, and investigative range includes
Conservator, valve side, net side and the neutral point current transformer sleeve pipe at the change of current place of getting higher and the change of current are lower the ontology at place；
Second set of flame detector and third set flame detector are separately mounted to the middle part that the change of current becomes two sides fireproof explosion-proof wall, peace
Dress height is lower than the acoustic barrier that the change of current becomes, and diagonally arranged in plane in the enclosed range of acoustic barrier, investigative range includes sound insulation
The change of current within barrier becomes ontology；
Every set flame detector is provided with an alarming logic signal output end；
3) fire-fighting logic control system includes circuit breaker trip signal receiving unit, the first logic judgment unit, the second logic
Judging unit and logical triggering output unit；The alarming logic signal output end of three sets of flame detectors is sentenced with the first logic respectively
Disconnected unit connection, and the logical signal output end of two sets of cable linear temperature sensing cables is connect with the second logic judgment unit respectively,
The logical signal output end of the first logic judgment unit is also connect with the second logic judgment unit simultaneously；Second logic judgment unit
Logical signal output end and circuit breaker trip signal receiving unit signal output end respectively with logical triggering output unit
Connection；Logical triggering output unit trigger output end is connect with the start unit that the change of current becomes fire plant；
First logic judgment unit provides the outlet of logical signal using "or" logic: when in three sets of flame detectors at least
A set of transmission alarming logic signal, then the first logic judgment unit exports a logical signal to the second logic judgment unit；
Second logic judgment unit provides a logical signal outlet using "or" logic according to the logic principle of two from three: when two
At least two groups of sending logic signals are covered in cable linear temperature sensing cable and the first logic judgment unit to the second logic judgment list
Member, then the second logic judgment unit exports a logical signal to logical triggering output unit；
Logical triggering output unit provides a trigger signal outlet using "and" logic: when logical triggering output unit is received simultaneously
It is disconnected that the change of current that the logical signal and circuit breaker trip signal receiving unit exported to the second logic judgment unit issues becomes net side
Road device TRIPPED position logical signal issues the start unit that a trigger signal becomes fire plant to the change of current, starting fire-fighting dress
It sets and puts out a fire.
2. the novel flexible DC converter according to claim 1 based on two from three mode becomes fire-fighting system, special
Sign is that the flame detector is a kind of photosensitizing type fire detector infrared detector or ultraviolet detection
Device or ultraviolet, infrared compound flame detector.
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|---|---|---|---|
| CN201811576950.3A CN109701182B (en) | 2018-12-23 | 2018-12-23 | Novel flexible direct-current converter transformer fire-fighting fire-extinguishing system based on three-taking-two mode |
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|---|---|---|---|
| CN201811576950.3A CN109701182B (en) | 2018-12-23 | 2018-12-23 | Novel flexible direct-current converter transformer fire-fighting fire-extinguishing system based on three-taking-two mode |
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| CN109701182B CN109701182B (en) | 2023-09-19 |
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| CN110364327A (en) * | 2019-07-31 | 2019-10-22 | 国家电网有限公司 | Converter power transformer with fire plant |
| CN110433439A (en) * | 2019-07-04 | 2019-11-12 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of change of current change fire-fighting monitoring system and method |
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| WO2021259148A1 (en) * | 2020-06-22 | 2021-12-30 | 国网安徽省电力有限公司电力科学研究院 | Operation control method suitable for fire extinguishing system of extra-high voltage converter station |
| CN111790089B (en) * | 2020-06-22 | 2021-10-01 | 国网安徽省电力有限公司电力科学研究院 | Fire extinguishing system and method for in-operation extra-high voltage converter station and in-operation extra-high voltage converter station |
| CN111790089A (en) * | 2020-06-22 | 2020-10-20 | 国网安徽省电力有限公司电力科学研究院 | Fire extinguishing system and method for in-operation extra-high voltage converter station and in-operation extra-high voltage converter station |
| CN112023316A (en) * | 2020-08-24 | 2020-12-04 | 国网新疆电力有限公司检修公司 | Intelligent water-saving type transformer and reactor fire extinguishing system and fire extinguishing method thereof |
| CN112870617A (en) * | 2021-01-25 | 2021-06-01 | 南京南瑞继保电气有限公司 | Linkage control method for compressed air foam system |
| CN114247068A (en) * | 2021-12-22 | 2022-03-29 | 福建永福电力设计股份有限公司 | Implementation method of main transformer fire-fighting water spraying fire-extinguishing system |
| CN114664046A (en) * | 2022-03-30 | 2022-06-24 | 中建安装集团有限公司 | FGS interlocking system for LNG low-temperature storage tank to meet SIL3 grade |
| CN114664046B (en) * | 2022-03-30 | 2024-06-07 | 中建安装集团有限公司 | FGS interlocking system for LNG low-temperature storage tank to meet SIL3 grade |
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