CN110416024A - A kind of shock type digital display gas density relay - Google Patents
A kind of shock type digital display gas density relay Download PDFInfo
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- CN110416024A CN110416024A CN201910830723.7A CN201910830723A CN110416024A CN 110416024 A CN110416024 A CN 110416024A CN 201910830723 A CN201910830723 A CN 201910830723A CN 110416024 A CN110416024 A CN 110416024A
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- 230000035939 shock Effects 0.000 title claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000011664 signaling Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 358
- 238000004364 calculation method Methods 0.000 claims description 80
- 230000008844 regulatory mechanism Effects 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 25
- 230000008859 change Effects 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 23
- 238000012795 verification Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 19
- 230000007774 longterm Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000001568 sexual effect Effects 0.000 claims description 7
- 230000000737 periodic effect Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 15
- 229910018503 SF6 Inorganic materials 0.000 description 11
- 229960000909 sulfur hexafluoride Drugs 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 208000033748 Device issues Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
- G01N9/266—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences for determining gas density
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2671—Means to detect leaks in the pressure sensitive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/32—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to power technologies.A kind of shock type digital display gas density relay of the present invention, comprising: the signaling gear and indicating value indication mechanism being connected together against；Several bellowss, temperature compensating element and several microswitches as contact are equipped in the signaling gear；Gas density is monitored by several bellowss and temperature compensating element of signaling gear, and several microswitches is combined to realize the monitoring to gas density, when gas density be lower than or/and higher than setting gas density when, pass through several microswitches output alarm or/and locking contact point signal；And the microprocessor of the indicating value indication mechanism is connected with pressure sensor, temperature sensor, digital display element respectively and acquires pressure and temperature signal, according to gas pressure-temperature characteristic, obtains corresponding density value P by microprocessor processes20, and then corresponding density value P is shown by digital display element20.Resistance to shock of the invention is good, high reliablity, live convenient reading, using flexible.
Description
Technical field
The present invention relates to technical field of electric power, in particular to a kind of gas density relay.
Background technique
Currently, generalling use the gas density relay that contact is microswitch monitors insulating gas in air insulating device
Density.Fig. 1 is the structural schematic diagram of existing sulfur hexafluoride gas density relay, as shown in Figure 1, this sulfur hexafluoride gas
Motion arm 1011,1021,1031, motion arm 1011,1021,1031 are all had on microswitch used by volume density relay
It can be in contact with corresponding signal regulation mechanism.Although the gas density relay of this structure has the excellent of good electric property
Point, but since the length of its contact motion arm 102 is longer, and belong to cantilever beam, minimum vibration present in working environment
The vibration that all may cause 102 free end of contact motion arm is very big, and sulfur hexafluoride gas density relay is caused to malfunction,
Microswitch even can be damaged, can not work normally so as to cause sulfur hexafluoride gas density relay.Therefore, how one is provided
The technical issues of planting the good gas density relay of resistance to shock, becoming those skilled in the art's urgent need to resolve.In addition, due to being permitted
The installation site of the density monitor of more electrical equipments is all very high, if read using pointer+dial type, operation maintenance personnel station exists
The visual angle of different angles, observation is different, and reading is also different.On the other hand, when minute leakage occurs for electrical equipment,
Its gas pressure value slowly declines, if read untrue, cannot accurately and timely find that electrical equipment occurs leakage and asks
Topic, can be handled in time.It cannot find and handle in time, will allow excessive SF6Gas leaks into atmosphere, causes environment
It destroys.Resistance to shock is good, facilitates the digital display type gas density relay of accurate reading, becomes those skilled in the art's urgent need to resolve
The technical issues of, conducive to the safety of power grid, it is conducive to protection environment.
Summary of the invention
Present invention aim to address the defects of existing gas density apparatus, provide a kind of shock type digital display gas density relay
Device.The present invention can be improved the resistance to shock of gas density relay, to improve the reliability of gas density relay, simultaneously
Facilitate the digital display type gas density relay of accurate reading.
To achieve the above object, the present invention provides following schemes: a kind of shock type digital display gas density relay, it is wrapped
Include power supply, comprising: the signaling gear and indicating value indication mechanism being connected together against；
Several bellowss, temperature compensating element and the work of gas density in detection electrical equipment are equipped in the signaling gear
For several microswitches of contact；Gas density is monitored by several bellowss and temperature compensating element of signaling gear, and is tied
Close several microswitches and realize monitoring to gas density, when gas density be lower than or/and higher than setting gas density when, lead to
Cross several microswitch output alarms or/and locking contact point signal；
The indicating value indication mechanism includes pressure sensor, temperature sensor, microprocessor, digital display element；Micro- place
Reason device is connected with pressure sensor, temperature sensor, digital display element respectively.It is acquired by pressure sensor, temperature sensor
Pressure and temperature signal obtains corresponding density value P20 by microprocessor processes, in turn according to gas pressure-temperature characteristic
Corresponding density value P20 is shown by digital display element.
The shock type digital display gas density relay, the signaling gear include shell, the first bellows, the second wave
Line pipe, microswitch, signal regulation mechanism, wherein the sealing open at one end of first bellows is fixed on the shell
On inner wall, the opening of the other end is sealed with first seal；It is the inner wall of first bellows, the first seal, described
The wall of shell defines to form first annular seal space body jointly；Filled with compensation gas in the first annular seal space body, temperature-compensating is constituted
Element；
The open at one end and first seal of second bellows is tightly connected, the opening of the other end and second close
Seals connection, the outer wall of first bellows, the first seal, the outer wall of second bellows, described the
The inner wall of two sealing elements and the shell defines to form the second seal cavity jointly, the second seal chamber and the air insulating device
In insulating gas connection；The signal regulation mechanism is connect with the first seal, and the microswitch corresponds to the letter
The setting of number regulating mechanism.
The shock type digital display gas density relay, first bellows with it is exhausted in the air insulating device
Edge gas connection；The inner wall of first bellows, the first seal, the shell wall and the air insulating device
It defines to form first annular seal space body jointly；
Outer wall, the first seal, the outer wall of second bellows, second sealing of first bellows
The inner wall of part and the shell defines to form the second seal cavity jointly, filled with compensation gas, structure in second seal cavity
At temperature compensating element.
A kind of shock type digital display gas density relay, the extension of the signal regulation mechanism extend to described
In second bellows, the extension is the end for the signal regulation mechanism connecting with second bellows；Alternatively,
The extension of the signal regulation mechanism extends in first bellows, wherein the signal regulation mechanism
Extension be the first seal being connect with first bellows the signal regulation mechanism end.
A kind of shock type digital display gas density relay, second bellows extend to first bellows
It is interior.
The shock type digital display gas density relay, the signal regulation mechanism is with the extension and described first
Sealing element connection.
The shock type digital display gas density relay, the signaling gear further include: spring and spring fixed seat；
One end of the spring is connected at the position that the signal regulation mechanism is connected with the bellows, the bullet
The other end of spring is connected to the spring fixed seat；The spring fixed seat is fixedly installed in the bellows and opens with the fine motion
Between pass.
The other end of a kind of shock type digital display gas density relay, the spring is connected by spring adjustment mechanism
It is connected to the spring fixed seat.
The shock type digital display gas density relay, the signal regulation mechanism, which is equipped with, adjusts screw.
The shock type digital display gas density relay is enclosed with insulating layer outside the seal cavity.
The shock type digital display gas density relay, the gas density relay is additionally provided with temperature sensing package, described
Compensation gas is connect by connecting tracheae with the temperature sensing package.
The shock type digital display gas density relay, the pressure sensor and/or temperature sensor are arranged in institute
It states in the second seal cavity or in the first annular seal space cavity.
The shock type digital display gas density relay, the digital display element, microprocessor are independently arranged, and pass through cable
Connection or wireless connector are connected with gas density relay other devices.
The shock type digital display gas density relay, the gas density relay further includes communication module, described
Microprocessor is connected with communication module；Microprocessor acquires pressure signal by pressure sensor, temperature sensor acquires temperature
Signal is spent, obtains corresponding density value P20 by microprocessor processes, and being capable of teletransmission density value or close by communication module
Angle value, pressure value, temperature value, and then realize the gas density value or density value, pressure value, temperature of on-line monitoring electrical equipment
Value.
The shock type digital display gas density relay, the temperature sensor and temperature compensating element are arranged one
It rises.
The shock type digital display gas density relay, the gas density relay further includes thermal insulator, it is described every
Warmware is arranged between signaling gear and indicating value indication mechanism, the thermal insulator is arranged at power supply.
The shock type digital display gas density relay, the density monitor further includes electromagnetic shield, the shielding
Part is arranged in inside or outside indicating value indication mechanism.
The shock type digital display gas density relay, the pressure sensor are equipped with shielding part.
The shock type digital display gas density relay, the microprocessor or communication module are equipped with shielding part；Or institute
It states microprocessor and communication module is equipped with shielding part.
The shock type digital display gas density relay, the gas density relay further include several insulating parts, are led to
Crossing that several insulating parts realize the pressure sensor with density monitor shell is insulation；Or the pressure sensor
Shell and gas density relay shell be insulation.
The shock type digital display gas density relay, the picoprocessor include edge calculations unit, edge meter
Unit is calculated obtained corresponding density value P20Depth calculation processing is carried out, it is accurate to obtain accurate density value P20.
The shock type digital display gas density relay, the depth calculation processing are as follows: the side of the microprocessor
Edge computing unit obtains gas density value P using mean value method calculation processing to gas density value detected20Average value
P20 is average, the average value P20 is averageIt is exactly accurate density value P20 is accurate。
The shock type digital display gas density relay, the mean value method are as follows: using setting time interval,
Frequency acquisition is set, the density value of the different time points all collected is carried out mean value calculation processing, obtains its gas
Density value P20Average value P20 is average, to obtain accurate density value P20 is accurate；Alternatively, using setting time interval, set
Temperature interval step-length is determined, (N number of) the progress average value meter of density value of the different temperatures value collected in whole temperature ranges
Calculation processing, obtains its gas density value P20Average value P20 is average, to obtain accurate density value P20 is accurate；Alternatively, using setting
Fixed time interval, setting pressure intervals step-length, the close of the different pressures value collected in whole pressure ranges
(N number of) the progress mean value calculation processing of angle value, obtains its gas density value P20Average value P20 is average, to obtain accurately close
Angle value P20 is accurate。
The shock type digital display gas density relay, the depth calculation processing are as follows: the microprocessor
Gas density value P of the edge calculations unit to the certain intervals time20Fourier transformation is carried out, corresponding frequency spectrum is converted into, in week
Phase sexual element filters, and accurate density value P is then calculated20 is accurate。
The shock type digital display gas density relay, the depth calculation processing are as follows: the microprocessor
Edge calculations unit is decomposed into tendency, periodicity and random component to composition according to time series, sentences according to trend sexual element
Body of dying leaks situation.
The shock type digital display gas density relay, the edge calculations unit judges gas hair of the microprocessor
Life have leaked, when detect tendency component values be equal to or more than set tendency component values, according to the tendency of setting
Component values, microprocessor issue alarm signal；The alarm signal uploads to target device or target platform.
The depth calculation processing, the accurate density value P20 is accurateBy communication module upload to target device or
Target platform, and then realize the gas density value of accurate on-line monitoring electrical equipment；Alternatively,
The accurate density value P20 is accurate, corresponding pressure value, corresponding temperature value target uploaded to by communication module
Equipment or target platform, and then the gas density value of accurate on-line monitoring electrical equipment is realized comprehensively；
The shock type digital display gas density relay, the complete paired data of edge calculations unit of the microprocessor
Analysis, judgement and data storage, according to setting warning strategies provide corresponding alarm signal.
The shock type digital display gas density relay, the edge calculations unit of the microprocessor, which includes, to be set
Fixed time interval, as the gas density value P of the electrical equipment monitored20Long-term change trend value △ P20Not equal to set
Long-term change trend value △ P20 settingsWhen, monitor issues alarm signal；Or issue alarm contact；Or alert；On or
Pass notification information.
The shock type digital display gas density relay, the Long-term change trend value △ P20Are as follows: using the time in setting
In interval, frequency acquisition is set, the density value of the different time points all collected is carried out mean value calculation processing, is obtained
Its gas density value P20Average value P20 is average, the trend calculating cycle T period is then set, Long-term change trend value △ is obtainedP20=
P20Average (previous T periodic quantity)-P20 average (T periods), i.e. average value P20 is averageThe difference of front and back cycle T；Alternatively,
In the time interval T of setting, as the Long-term change trend value △ P of the gas density value P20 of the electrical equipment monitored20=
P20 (the previous intervals T)-P20 (intervals T), i.e. density value P20The difference of surrounding time interval T；Alternatively,
In the time interval T of setting, the time span T length of setting.Using the time interval T in setting, setting acquisition
The density value P20 of the different time points all collected is carried out cumulative calculation and obtains aggregate-value ∑ P by frequency20, obtain trend
Changing value △ P20=∑ P20 (previous T length)-∑P20 (T length instantly), i.e. surrounding time length T length aggregate-value ∑ P20Between difference.
The shock type digital display gas density relay, the edge calculations unit of the microprocessor, which has, calculates institute
Monitor the leak rate L, the leak rate L=△ P of electrical equipment20t/ t=(P20Before accurate t-P20Accurate t.)/t, in formula: t is setting
Time interval, △ P20tFor the density value variable quantity in time interval t, PBefore 20 accurate tFor the density value of time interval t previous moment,
P20Accurate tFor the density value for having crossed time interval t moment；Monitor, which timely updates, issues leak rate L notification information；Or in time more
It is new to upload leak rate L notification information.
The shock type digital display gas density relay, the edge calculations unit of the microprocessor have to being supervised
Function is managed in the gas tonifying Qi of the electrical equipment of survey, and the density value P of tonifying Qi is needed according to setting20 tonifying Qi, when the density value monitored
P20 is accurateEqual to or less than density value P20 tonifying QiWhen, monitor issues tonifying Qi alarm signal；Or issue tonifying Qi alarm contact；Or
Issue tonifying Qi notification information；Or upload tonifying Qi notification information.
The shock type digital display gas density relay, the edge calculations unit of the microprocessor have to being supervised
The gas tonifying Qi time notification information of the electrical equipment of survey；The density value P of tonifying Qi is needed according to setting20 tonifying Qi, tonifying Qi time TThe tonifying Qi time
=(P20 is accurate-P20 tonifying Qi)/L, monitor, which timely updates, issues tonifying Qi time notification information；Or it timely updates and uploads tonifying Qi time letter
Breath.
The shock type digital display gas density relay, the edge calculations unit of the microprocessor have to being supervised
The gas tonifying Qi quality notification information of the electrical equipment of survey；The density value P of tonifying Qi is needed according to setting20 tonifying Qi, the gas of electrical equipment
Building volume V, edge calculations unit is by being calculated gas tonifying Qi quality QTonifying Qi, monitor sending gas tonifying Qi quality QTonifying Qi information；
Or upload gas tonifying Qi quality QTonifying Qi information。
The shock type digital display gas density relay, the edge calculations unit of the microprocessor is to gas tonifying Qi
Quality QTonifying QiCalculation method are as follows: the density value P of tonifying Qi as needed20 need, according to the density value P of tonifying Qi20 needAnd its gas is special
Property obtains mass density ρIt needs, it is known that electrical equipment gas chamber always needs gaseous mass QAlways=ρIt needs*V；And detect at present
Density value P20, according to the density value P detected at present20And its gas characteristic obtains mass density ρAt present, it is known that electrical equipment
The current gaseous mass Q of gas chamberAt present=ρAt present*V；Obtain QTonifying Qi=QAlways-QAt present；Monitor, which timely updates, issues gas tonifying Qi quality
QTonifying QiNotification information；Or it timely updates and uploads gas tonifying Qi quality QTonifying Qi information。
The shock type digital display gas density relay, the edge calculations unit of the microprocessor has to institute
The gas leakage notification information of the electrical equipment of monitoring；According to the leakage alarm density value P of setting20 gas leakageAlarm, when the density monitored
Value P20 is accurateEqual to or less than leakage alarm density value P20 leakage alarmsWhen, monitor issues leakage alarm signal；Or issue leakage alarm
Signal contact；Or issue gas leakage notification information；Or upload gas leakage notification information；Alternatively,
According to the tendency component values of setting, when the tendency component values monitored are equal to or more than set tendency
When component values, monitor issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or
Upload gas leakage notification information；Alternatively,
According to the time interval T in setting, as the gas density value P of the electrical equipment monitored20Long-term change trend value △
P20Equal to or more than set gas density value P20Long-term change trend value △P20 settingWhen, monitor issues leakage alarm signal；
Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or upload gas leakage notification information；Alternatively,
It is set according to set leak rate L, when the leak rate L monitored is equal to or more than set leak rate
LSettingWhen, monitor issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or it uploads
Gas leakage notification information.
The shock type digital display gas density relay, the edge calculations unit of the microprocessor have amendment leakage
Time interval value t set by gas rate L.
The shock type digital display gas density relay, the gas density relay further includes gas supplementing opening, the benefit
Port is connected to the insulating gas in the air insulating device, carries out tonifying Qi or/and micro- to electrical equipment by the gas supplementing opening
Water test；Alternatively,
The gas density relay further includes Self-sealing valve, the insulation gas in the Self-sealing valve and the air insulating device
Body connection carries out tonifying Qi to electrical equipment by the Self-sealing valve or/and micro- water is tested.
The shock type digital display gas density relay, the gas density relay further includes verification interface and valve
Door, is not dismantled verification to gas density relay by the verification interface and valve；Alternatively,
The gas density relay further includes verification interface and valve, by the verification interface and valve to gas density
Relay is not dismantled verification, or/and carries out tonifying Qi and the test of micro- water to electrical equipment by the verification interface.
Any one shock type digital display gas density relay, the gas density relay are additionally provided with package institute
State the insulating layer of first annular seal space body or/and second seal cavity
Beneficial effects of the present invention:
Gas density relay provided by the invention is the signaling gear being connected together against and indicating value indication mechanism group
At.Control signaling gear realizes that stability is good using bellows+gas compensation, therefore it is close to greatly improve gas
Spend the resistance to shock of relay.Innovative proposition uses the indicating value indication mechanism relatively independent with signaling gear simultaneously, shows
Value indication mechanism includes pressure sensor, temperature sensor, microprocessor, digital display element.It is shown accordingly by digital display element
Density value P20(i.e. 20 DEG C of pressure value P20), facilitate accurate reading, can find that leakage problem occurs for electrical equipment in time,
It can handle in time.It will not allow excessive SF6Gas leaks into atmosphere, protects environment.Gas density provided by the invention after
Electric appliance has convenient for production, low manufacture cost, and monitoring accuracy is high, and electric property is good, long working life, can be in oil-free situation
The advantages that lower work.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the sulfur hexafluoride gas density relay of the prior art；
Fig. 2 is the partial cutaway schematic of the embodiment of the present invention one；
Fig. 3 is the partial cutaway schematic of the embodiment of the present invention two.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of shock type digital display gas density relays, can be improved gas density relay
Resistance to shock, to improve the reliability of gas density relay, while facilitating accurate reading.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is close to introduce high antivibration digital display gas provided by the invention by taking sulfur hexafluoride gas density relay as an example for the present embodiment
Spend the structure of relay.
Fig. 2 is the partial cutaway schematic for the high antivibration digital display gas density relay that the embodiment of the present invention one provides.Such as
Shown in Fig. 2, a kind of shock type digital display gas density relay, the gas density relay is connect with air insulating device, institute
Stating high antivibration digital display gas density relay includes: the signaling gear being connected together against and indicating value indication mechanism.The letter
Several bellowss of gas density in detection electrical equipment: the first bellows 2, the second bellows 3, blanket gas are equipped in number mechanism
The temperature compensating element that room is constituted, and several microswitches 4 as contact；The first bellows 2, the second wave of signaling gear
The temperature compensating element that line pipe 3 and sealed air chamber are constituted monitors gas density, and it is close to gas to combine several microswitches 4 to realize
The monitoring of degree, when gas density be lower than or/and higher than setting gas density when, by several microswitches 4 export alarm or/
With locking contact point signal.And the indicating value indication mechanism 11 includes pressure sensor 1101, temperature sensor 1102, microprocessor
1103, digital display element 1104.The microprocessor 1103 is first with pressure sensor 1101, temperature sensor 1102, digital display respectively
Part 1104 is connected.Pressure P and temperature signal T is acquired by pressure sensor 1101, temperature sensor 1102, according to gas pressure
Power-temperature characterisitic handles by microprocessor 1103 and obtains corresponding density value P20(i.e. 20 DEG C of pressure value P20), in turn
Corresponding density value P is shown by digital display element 110420(i.e. 20 DEG C of pressure value P20)。
Specifically, signaling gear specifically includes that shell 1, the first bellows 2, the second bellows 3, microswitch 4, letter
Number regulating mechanism 5 and spring 6, wherein the shell 1 offers opening, and the first open end of first bellows 2 passes through weldering
It connects and is fixed on the inner wall of the shell 1, and first bellows 2 passes through in the opening and the air insulating device 7
Insulating gas connection, the second open end of first bellows 2 and first seal 8 are tightly connected；First ripple
The inner wall of pipe 2, the first seal 8, the inner wall of the shell 1 and the air insulating device 7 define to form first jointly
Seal cavity A1；
First open end of second bellows 3 and the first seal 8 are tightly connected, second bellows 3
The second open end and second seal sealing 9 connect, it is the outer wall of first bellows 2, the first seal 8, described
The inner wall of the outer wall of second bellows 3, the second seal 9 and the shell 1 defines to form the second seal cavity A2 jointly,
Filled with compensation gas in the second seal cavity A2；
The signal regulation mechanism 5 is connect with the first seal 8, the corresponding Signal Regulation of the microswitch 4
Mechanism 5 is arranged, and the first end of the spring 6 is connected to the signal regulation mechanism 5 and the first seal 8 and the second wave
The second end of the interconnecting piece of line pipe 3, the spring 6 is connected on the spring fixed seat 10 by spring adjustor, wherein institute
Spring fixed seat 10 is stated to be arranged between second bellows 3 and the microswitch 4.In the present embodiment, the signal tune
Saving mechanism 5 includes adjusting screw 501, adjusting rod 502 and disk 503, wherein adjusts screw 501 and is arranged on disk 503.
In the present embodiment, the extension of the signal regulation mechanism 5 extends in second bellows 3 and with described
One sealing element 8 connection, wherein the extension of the signal regulation mechanism 5 is the signal connecting with second bellows 3
The end of regulating mechanism 5.The spring fixed seat 10 is arranged between second bellows 3 and the microswitch 4.
Further, it is additionally provided on the shell 1 of gas relay provided in this embodiment for showing that the gas is exhausted
The indication mechanism 11 of density of insulating gas in edge equipment.
As shown in Fig. 2, indication mechanism 11 specifically includes: pressure sensor 1101, temperature sensor 1102, microprocessor
1103 and digital display element 1104；Wherein,
The pressure sensor 1101 is connected in gas circuit with the insulating gas in the air insulating device 7, in circuit
On, the temperature sensor 1102, the pressure sensor 1101 are connected with the microprocessor 1103, the digital display element
1104 are installed in the shell of indication mechanism 11.Pressure P and temperature are acquired by pressure sensor 1101, temperature sensor 1102
Signal T is handled by microprocessor 1103 according to gas pressure-temperature characteristic and is obtained corresponding density value P20(i.e. 20 DEG C
Pressure value P20), and then corresponding density value P is shown by digital display element 110420(i.e. 20 DEG C of pressure value P20).The gas
Volume density relay further includes communication module 1105, and the microprocessor 1103 is connected with communication module 1105.Microprocessor
1103 acquire pressure signal P, 1102 temperature collection signal T of temperature sensor by pressure sensor 1101, by microprocessor
1103 processing obtain corresponding density value P20(i.e. 20 DEG C of pressure value P20), and by communication module 1105 can teletransmission it is close
Angle value or density value, pressure value, temperature value, and then realize the gas density value or density value, pressure of on-line monitoring electrical equipment
Force value, temperature value.
Preferably, the gas density relay is additionally provided with temperature sensing package, and the compensation gas passes through connection tracheae and institute
Temperature sensing package connection is stated, to make gas density relay can be used in density monitor and the biggish occasion of the equipment temperature difference.It is described
Gas density relay is additionally provided with the insulating layer 12 for wrapping up the first annular seal space body A1 and the second seal cavity A2.
Further, gas density relay provided in this embodiment is additionally provided with the holding mechanism after signalizing activity and multiple
Position mechanism.
Optionally, the first seal 8 is integrated part or is made of split type part.
The working principle of high antivibration digital display gas density relay provided by the invention are as follows: it regulates after adjusting screw 501,
Seal cavity A2 is sealed, it is general to be realized by welding.Then to seal cavity A2 vacuumize process, then according to high antivibration digital display
Rated pressure, alarm pressure, the locking pressure and other parameters of gas density relay are filled with relevant pressure in seal cavity A2
Compensation gas.Seal cavity A2 and seal cavity A1 is bigger in the same bigger pressure of environment temperature lower density.If SF6 (six
Sulfur fluoride) electrical equipment do not have gas leakage, and Gao Kangzhen digital display gas density relay does not just issue warning block signal；If SF6
Electrical equipment gas leakage, when the SF6 gas density is in SF6 electrical equipment is near or below the compensation gas in seal cavity A2
When density, Gao Kangzhen digital display gas density relay issues warning block signal, it is ensured that power grid security.
Detailed process are as follows: when electrical equipment is normal, the density p of sealed air chamber A11Greater than the density p of sealed air chamber A22,
That is ρ1>ρ2.As the big Mr. Yu of difference △ P of pressure P2, i.e. P1 and P2 of the gas pressure P1 of sealed air chamber A1 greater than sealed air chamber A2
It when one setting value, can be known by Fig. 2, adjust and there is distance L accordingly between screw 501 and microswitch 4, at this time Signal Regulation
The adjusting screw 501 of mechanism 5 does not contact microswitch 4, i.e., without triggering microswitch 4, such microswitch 4 is not moved
Make, contact point signal does not export., whereas if air insulating device gas leakage, the gas density value decline of sealed air chamber A1,
The gas pressure value of sealed air chamber A1 also declines, when its density value drops to close to or gas density value lower than sealed air chamber A2
(reach alarm or locking value) to a certain degree, i.e., when △ P is less than a certain setting value, the L in Fig. 2 can reduce, when L is less than phase
The value answered, the adjusting screw 501 of signal regulation mechanism 5 has touched microswitch 4 at this time, i.e. triggering microswitch 4, such phase
4 contact of microswitch answered is switched on, and corresponding signal (alarm or locking) is issued, so that monitoring and control high-voltage switch gear etc. are set
Gas density in standby, makes electrical equipment trouble free service.And the pressure difference variation between gas chamber A1 and gas chamber A2, it allows for adjusting
Bar 502 moves up and down, and adjusting rod 502 is connect by pressure sensor 1101 with temperature sensor 1102.When pressure change,
Just there is pressure difference, temperature sensor 1102 is transmitted to by adjusting rod 502 and pressure sensor 1101, passes through temperature sensor
1102 and pointer 1103 pressure is shown on microprocessor 1103.
Fig. 3 is the partial cutaway schematic of high antivibration digital display gas density relay provided by Embodiment 2 of the present invention.Such as
Shown in Fig. 3, for more convenient accurate reading, the indication mechanism 11 and signaling gear fission in the present embodiment are designed,
The indication mechanism 11 and signaling gear are seperated, are mounted on different suitable positions.The gas density relay further includes electricity
Cable connecting line, the digital display element 1104 or digital display element 1104 and microprocessor 1103 are independently arranged, and pass through cable link
It is connected with gas density relay other devices；Alternatively, the gas density relay further includes wireless connector, the number
Aobvious element 1104 or digital display element 1104 and microprocessor 1103 are independently arranged, and pass through wireless connector and gas density relay
Other devices are connected.
As shown in figure 3, the present embodiment two forms the first annular seal space body A1 and second sealing in the following way
Cavity A2: the both ends of first bellows 2, which seal, forms first annular seal space body A1, and first annular seal space body A1 is filled with compensation gas
Body.The both ends of second bellows 3, which seal, forms the second seal cavity A2, the outer wall and the second ripple of the first bellows 2
The outer wall of pipe 3 and the inner wall of shell 1 define to form the second seal cavity A2, the second seal cavity A2 and six jointly
Sulfur fluoride electrical equipment is connected.The pressure sensor 1101 and/or the setting of temperature sensor 1102 are in second sealing
In cavity A2.The temperature sensor 1101 and temperature compensating element 1102 are set together.
Indication mechanism 11 specifically includes: pressure sensor 1101, temperature sensor 1102, microprocessor 1103, digital display member
Part 1104.Wherein,
The pressure sensor 1101 and/or temperature sensor 1102 are arranged in the second seal cavity A2, pressure
Sensor 1101 is interconnected in gas circuit with air insulating device 7.By cable, the pressure sensor 1101 and temperature
Sensor 1102 is connected with the microprocessor 1103.
High antivibration digital display gas density relay as shown in Figure 3, the indication mechanism 11 and signal in the present embodiment
The design of mechanism fission, the indication mechanism 11 and signaling gear are seperated, can be separately mounted to different suitable positions, Ke Yifei
Often easily read.The part being the same as example 1 no longer repeats one by one.
The shock type digital display gas density relay, the pressure sensor 1101 and/or temperature sensor 1102
It is arranged in the second seal cavity A2.It specifically can be depending on design.
The temperature sensor is set up directly on temperature compensating element；Or the temperature sensor is arranged in temperature-compensating
Element attachment.The gas density relay further includes thermal insulator, and the thermal insulator setting shows machine in signaling gear and indicating value
Between structure；Or the thermal insulator is arranged at power supply (power module), and it is unaffected to guarantee that fever monitors gas density.It is described
Density monitor further includes shielding part, and the shielding part can play shielding action to electric field or magnetic field or electric and magnetic fields.
The shielding part is arranged in inside or outside indicating value indication mechanism.The pressure sensor is equipped with shielding part.The micro process
Device or communication module are equipped with shielding part；Or the microprocessor and communication module are equipped with shielding part.It, can be with by designing in this way
Improve the anti-interference ability of density monitor.
The gas density relay further includes several insulating parts, realizes the pressure sensor by several insulating parts
Shell with density monitor is insulation；Or the shell of the pressure sensor and the shell of gas density relay are exhausted
Edge.The anti-overvoltage capacity of density monitor is improved in this way.
Further, the picoprocessor includes edge calculations unit, and edge calculations unit is obtained corresponding density value
P20Depth calculation processing is carried out, accurate density value P is obtained20 is accurate.The depth calculation processing are as follows: the microprocessor
Edge calculations unit obtains gas density value P using mean value method (averaging method) calculation processing to gas density value detected20
Average value P20 is average, the average value P20 is averageIt is exactly accurate density value P20 is accurate.The mean value method are as follows: using setting when
Between be spaced in, setting frequency acquisition, at (N number of) the progress mean value calculation of density value of the different time points all collected
Reason, obtains its gas density value P20Average value P20 is average, to obtain accurate density value P20 is accurate.At the depth calculation
Reason are as follows: gas density value P of the edge calculations unit of the microprocessor to the certain intervals time20Fourier transformation is carried out,
It is converted into corresponding frequency spectrum, periodic component is filtered, accurate density value P is then calculated20 is accurate.The depth calculation
Processing are as follows: the edge calculations unit of the microprocessor according to time series to composition be decomposed into tendency, periodically and with
Machine composition judges that gas leaks situation according to trend sexual element.The edge calculations unit judges gas of the microprocessor is sent out
Life has leaked, and microprocessor issues alarm signal or warning message.The alarm signal can upload to target by signal wire
Equipment；The warning message uploads to target device or target platform by communication module.(according to the trend sexual element of setting
Value, when detect tendency component values be equal to or more than set tendency component values).The accurate density value P20 is accurate
Target device or target platform are uploaded to by communication module, and then realizes the gas density of accurate on-line monitoring electrical equipment
Value；Alternatively, the accurate density value P20 is accurate, corresponding pressure value, corresponding temperature value target uploaded to by communication module
Equipment or target platform, and then the gas density value of accurate on-line monitoring electrical equipment is realized comprehensively；The microprocessor
Analysis, judgement and the data storage of the complete paired data of edge calculations unit, provide corresponding alarm according to the warning strategies set
Signal.The edge calculations unit of the microprocessor includes the time interval in setting, when the gas of the electrical equipment monitored
Volume density value P20Long-term change trend value △ P20Below or above set Long-term change trend value △ P20 settingsWhen, monitor issues report
Alert signal；Or issue alarm contact；Or alert；Or upload notification information.The Long-term change trend value △ P20Are as follows:
Using the time interval in setting, setting frequency acquisition, the density values (N number of) of the different time points all collected into
The processing of row mean value calculation, obtains its gas density value P20Average value P20 is average, then set trend calculating cycle TPeriod, obtain
Long-term change trend value △ P20=P20 average (previous T periodic quantities)-P20 average (T periods), i.e. average value P20 is averageFront and back cycle TPeriodDifference；Alternatively,
In the time interval T of setting, as the gas density value P of the electrical equipment monitored20Long-term change trend value △ P20=
P20 (the previous intervals T)-P20 (intervals T), i.e. density value P20The difference of surrounding time interval T；Alternatively,
In the time interval T of setting, the time span T of settingLength.Using time interval T, the setting acquisition frequency in setting
Rate, the density value P of the different time points all collected20(N number of) progress cumulative calculation obtains aggregate-value ∑P20, become
Gesture changing value △ P20=∑P20 (previous T length)-∑P20 (T length instantly), i.e. surrounding time length TLengthAggregate-value ∑P20Between difference.
The edge calculations unit of the microprocessor has the leak rate L for calculating monitored electrical equipment, the gas leakage
Rate L=△ P20t/ t=(PBefore 20 accurate t-P20 accurate t.)/t, in formula: t is the time interval of setting, △ P20tFor the pressure in time interval t
Power variable quantity, PBefore 20 accurate tFor the density value of time interval t previous moment, P20 accurate tFor the density value for having crossed time interval t moment.
Monitor, which timely updates, issues leak rate L notification information；Or it timely updates and uploads leak rate L notification information.
The edge calculations unit of the microprocessor has the function of the control of the gas tonifying Qi to the electrical equipment monitored,
The density value P of tonifying Qi is needed according to setting20 tonifying Qi, as the density value P monitored20 is accurateEqual to or less than density value P20 tonifying QiWhen, monitoring
Device issues tonifying Qi alarm signal；Or issue tonifying Qi alarm contact；Or issue tonifying Qi notification information；Or upload tonifying Qi bulletin letter
Breath.
The edge calculations unit of the microprocessor has the gas tonifying Qi time bulletin to the electrical equipment monitored
Information.The density value P of tonifying Qi is needed according to setting20 tonifying Qi, tonifying Qi time TThe tonifying Qi time=(P20 is accurate-P20 tonifying Qi)/L, monitor is in time more
It is new to issue tonifying Qi time notification information；Or it timely updates and uploads tonifying Qi temporal information.
The edge calculations unit of the microprocessor has the gas tonifying Qi quality bulletin to the electrical equipment monitored
Information.The density value P of tonifying Qi is needed according to setting20 tonifying Qi, the chamber volume V of electrical equipment, edge calculations unit is by calculating
To gas tonifying Qi quality QTonifying Qi, monitor sending gas tonifying Qi quality QTonifying QiInformation；Or upload gas tonifying Qi quality QTonifying QiInformation.
The edge calculations unit of the microprocessor is to gas tonifying Qi quality QTonifying QiCalculation method are as follows: as needed mend
The density value P of gas20 need, according to the density value P of tonifying Qi20 needAnd its gas characteristic obtains mass density ρIt needs, it is known that electrically
Equipment gas chamber always needs gaseous mass QAlways=ρIt needs*V；And the density value P detected at present20, according to the density value detected at present
P20And its gas characteristic obtains mass density ρAt present, it is known that the gaseous mass Q that electrical equipment gas chamber is currentAt present=ρAt present*V；This
Sample can be obtained by QTonifying Qi=QAlways-QAt present.Monitor, which timely updates, issues gas tonifying Qi quality QTonifying QiNotification information；Or it timely updates
Upload gas tonifying Qi quality QTonifying QiInformation.The edge calculations unit of the microprocessor has to the electrical equipment monitored
Gas leakage notification information.According to the leakage alarm density value P of setting20 leakage alarms, as the density value P monitored20 is accurateEqual to or less than leakage
Gas alarm density value P20 leakage alarmsWhen, monitor issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage
Notification information；Or upload gas leakage notification information；Alternatively,
According to the tendency component values of setting, when the tendency component values monitored are equal to or more than set tendency
When component values, monitor issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or
Upload gas leakage notification information；Alternatively,
According to the time interval T in setting, as the gas density value P of the electrical equipment monitored20Long-term change trend value △
P20Equal to or more than set gas density value P20Long-term change trend value △ P20 settingsWhen, monitor issues leakage alarm signal；
Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or upload gas leakage notification information；Alternatively,
According to set leak rate LSetting, when the leak rate L monitored is equal to or more than set leak rate LSetting
When, monitor issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or upload leakage
Gas notification information.The edge calculations unit of the microprocessor has time interval value t set by amendment leak rate L.
The gas density relay further includes gas supplementing opening, the insulation gas in the gas supplementing opening and the air insulating device
Body connection can carry out tonifying Qi to electrical equipment by the gas supplementing opening or/and micro- water is tested；Alternatively,
The gas density relay further includes Self-sealing valve, the insulation gas in the Self-sealing valve and the air insulating device
Body connection can carry out tonifying Qi to electrical equipment by the Self-sealing valve or/and micro- water is tested.
The gas density relay further includes verification interface and valve, can be to gas by the verification interface and valve
Density monitor is not dismantled verification；Alternatively,
The gas density relay further includes verification interface and valve, can be to gas by the verification interface and valve
Density monitor is not dismantled verification, or/and tonifying Qi or/and the survey of micro- water can be carried out to electrical equipment by the verification interface
Examination.
The gas density relay is additionally provided with the guarantor for wrapping up the first annular seal space body and second seal cavity
Warm layer.The first seal is integrated part or is made of split type part.The digital display element is to be independently arranged, can be with
It is connect by wired or wireless way with gas density relay.The communication module is wired or wireless way.By in this way
Edge calculations can further increase the intelligence degree of density monitor, be conducive to ensure power grid security.
Gas density relay provided in this embodiment, other than being applicable in sulfur hexafluoride gas, additionally it is possible to be suitable for hexafluoro
Change all insulating gas such as sulphur mixed gas, nitrogen, dry air, compressed air, it can be to sulfur hexafluoride gas, sulfur hexafluoride
The density of all insulating gas such as mixed gas, nitrogen, dry air, compressed air is monitored.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (40)
1. a kind of shock type digital display gas density relay, it includes power supply characterized by comprising is connected together against
Signaling gear and indicating value indication mechanism；
Several bellowss, temperature compensating element of gas density are equipped in detection electrical equipment in the signaling gear and as connecing
Several microswitches of point；Gas density is monitored by several bellowss and temperature compensating element of signaling gear, and if combining
Dry microswitch realizes the monitoring to gas density, when gas density be lower than or/and higher than setting gas density when, if by
Dry microswitch output alarm or/and locking contact point signal；
The indicating value indication mechanism includes pressure sensor, temperature sensor, microprocessor, digital display element；The microprocessor
It is connected respectively with pressure sensor, temperature sensor, digital display element.Pressure is acquired by pressure sensor, temperature sensor
And temperature signal obtains corresponding density value P by microprocessor processes according to gas pressure-temperature characteristic20, and then pass through
Digital display element shows corresponding density value P20。
2. shock type digital display gas density relay according to claim 1, which is characterized in that the signaling gear includes
Shell, the first bellows, the second bellows, microswitch, signal regulation mechanism, wherein open one end of first bellows
Mouth sealing is fixed on the inner wall of the shell, and the opening of the other end is sealed with first seal；First bellows it is interior
Wall, the first seal, the shell wall define to form first annular seal space body jointly；In the first annular seal space body filled with
Compensation gas constitutes temperature compensating element；
The open at one end and first seal of second bellows is tightly connected, the opening and second seal of the other end
It is tightly connected, it is the outer wall of first bellows, the first seal, the outer wall of second bellows, described second close
The inner wall of sealing and the shell defines to form the second seal cavity jointly, in the second seal chamber and the air insulating device
Insulating gas connection；The signal regulation mechanism is connect with the first seal, and the microswitch corresponds to the signal tune
Save mechanism setting.
3. shock type digital display gas density relay according to claim 2, which is characterized in that first bellows with
Insulating gas connection in the air insulating device；Inner wall, the first seal, the shell of first bellows
Wall and the air insulating device define to form first annular seal space body jointly；
The outer wall of first bellows, the first seal, the outer wall of second bellows, the second seal and
The inner wall of the shell defines to form the second seal cavity jointly, filled with compensation gas in second seal cavity, constitutes temperature
Spend compensating element,.
4. a kind of shock type digital display gas density relay described according to claim 1 or 2 or 3, which is characterized in that described
The extension of signal regulation mechanism extends in second bellows, and the extension is to connect with second bellows
The end of the signal regulation mechanism；Alternatively,
The extension of the signal regulation mechanism extends in first bellows, wherein the signal regulation mechanism is prolonged
Extending portion is the end of the signal regulation mechanism for the first seal connecting with first bellows.
5. a kind of shock type digital display gas density relay according to claim 2 or 3, which is characterized in that described second
Bellows extends in first bellows.
6. shock type digital display gas density relay according to claim 2 or 3, which is characterized in that the Signal Regulation
Mechanism is connect with the extension with the first seal.
7. the according to claim 1 or 2 or 3 shock type digital display gas density relays, which is characterized in that the semaphore
Structure further include: spring and spring fixed seat；
One end of the spring is connected at the position that the signal regulation mechanism is connected with the bellows, the spring
The other end is connected to the spring fixed seat；The spring fixed seat be fixedly installed in the bellows and the microswitch it
Between.
8. a kind of shock type digital display gas density relay according to claim 7, which is characterized in that the spring it is another
One end is connected to the spring fixed seat by spring adjustment mechanism.
9. shock type digital display gas density relay according to claim 1, which is characterized in that the signal regulation mechanism
Equipped with adjusting screw.
10. shock type digital display gas density relay described according to claim 1 or 2 or 3, which is characterized in that described close
Envelope containment portion is enclosed with insulating layer.
11. shock type digital display gas density relay according to claim 1, which is characterized in that the gas density after
Electric appliance is additionally provided with temperature sensing package, and the compensation gas is connect by connecting tracheae with the temperature sensing package.
12. shock type digital display gas density relay according to claim 2 or 3, which is characterized in that the pressure sensing
Device and/or temperature sensor setting are in second seal cavity or in the first annular seal space cavity.
13. shock type digital display gas density relay according to claim 1, which is characterized in that the digital display element, micro-
Processor is independently arranged, and is connected by cable connection or wireless connector with gas density relay other devices.
14. shock type digital display gas density relay according to claim 1, which is characterized in that the gas density after
Electric appliance further includes communication module, and the microprocessor is connected with communication module；Microprocessor is acquired by pressure sensor and is pressed
Force signal, temperature sensor temperature collection signal obtain corresponding density value P by microprocessor processes20, and pass through communication mould
Block can teletransmission density value or density value, pressure value, temperature value, and then realize on-line monitoring electrical equipment gas density value,
Or density value, pressure value, temperature value.
15. shock type digital display gas density relay according to claim 1, which is characterized in that the temperature sensor
It is set together with temperature compensating element.
16. shock type digital display gas density relay according to claim 1, which is characterized in that the gas density after
Electric appliance further includes thermal insulator, and the thermal insulator is arranged between signaling gear and indicating value indication mechanism, thermal insulator setting exists
At power supply.
17. shock type digital display gas density relay according to claim 1, which is characterized in that the density monitor
It further include electromagnetic shield, which is arranged in inside or outside indicating value indication mechanism.
18. shock type digital display gas density relay according to claim 1, which is characterized in that the pressure sensor
Equipped with shielding part.
19. shock type digital display gas density relay according to claim 1, which is characterized in that the microprocessor or
Communication module is equipped with shielding part；Or the microprocessor and communication module are equipped with shielding part.
20. shock type digital display gas density relay according to claim 1, which is characterized in that the gas density after
Electric appliance further includes several insulating parts, realizes that the shell of the pressure sensor and density monitor is insulation by several insulating parts
's；Or the shell of the pressure sensor and the shell of gas density relay are insulation.
21. shock type digital display gas density relay according to claim 1, which is characterized in that it is characterized in that, described
Picoprocessor includes edge calculations unit, and edge calculations unit is obtained corresponding density value P20Depth calculation processing is carried out,
Obtain accurate density value P20 is accurate。
22. shock type digital display gas density relay according to claim 1, which is characterized in that the depth calculation
Processing are as follows: the edge calculations unit of the microprocessor obtains gas density value detected using mean value method calculation processing
Gas density value P20Average value P20 is average, the average value P20 is averageIt is exactly accurate density value P20 is accurate。
23. shock type digital display gas density relay according to claim 22, which is characterized in that the mean value method
Are as follows: using the time interval in setting, setting frequency acquisition, the density value of the different time points all collected is carried out
Mean value calculation processing, obtains its gas density value P20Average value P20 is average, to obtain accurate density value P20 is accurate；Alternatively,
Using time interval, the set temperature interval steps in setting, the not equality of temperature collected in whole temperature ranges
(N number of) the progress mean value calculation processing of the density value of angle value, obtains its gas density value P20Average value P20 is average, to obtain
Accurate density value P20 is accurate；Alternatively,
Using time interval, the setting pressure intervals step-length in setting, being collected not in whole pressure ranges
With (N number of) the progress mean value calculation processing of density value of pressure value, its gas density value P is obtained20Average value P20 is average, thus
Obtain accurate density value P20 is accurate。
24. shock type digital display gas density relay according to claim 21, which is characterized in that the depth calculation
Processing are as follows: gas density value P of the edge calculations unit of the microprocessor to the certain intervals time20Carry out Fourier's change
It changes, is converted into corresponding frequency spectrum, periodic component is filtered, accurate density value P is then calculated20 is accurate。
25. the shock type digital display gas density relay according to claim 21 or 24, which is characterized in that the depth
Calculation processing are as follows: the edge calculations unit of the microprocessor is decomposed into tendency, periodicity to composition according to time series
And random component, judge that gas leaks situation according to trend sexual element.
26. according to shock type digital display gas density relay described in claim or 25, which is characterized in that the micro process
The edge calculations unit judges gases did escape of device, when detect tendency component values be equal to or more than set trend
Sexual element value, according to the tendency component values of setting, microprocessor issues alarm signal；The alarm signal uploads to target and sets
Standby or target platform.
27. depth calculation described according to claim 1 or 2 or 3 or 24 is handled, which is characterized in that described is accurate close
Angle value P20 is accurateTarget device or target platform are uploaded to by communication module, and then realizes the gas of accurate on-line monitoring electrical equipment
Volume density value；Alternatively,
The accurate density value P20 is accurate, corresponding pressure value, corresponding temperature value target device uploaded to by communication module
Or target platform, and then the gas density value of accurate on-line monitoring electrical equipment is realized comprehensively.
28. shock type digital display gas density relay according to claim 21, which is characterized in that the microprocessor
The analysis of the complete paired data of edge calculations unit, judgement and data storage, the warning strategies according to setting provide corresponding announcement
Alert signal.
29. according to claim 1 or shock type digital display gas density relay described in 28, which is characterized in that micro- place
The edge calculations unit of reason device includes the time interval in setting, as the gas density value P of the electrical equipment monitored20Become
Gesture changing value △ P20Not equal to set Long-term change trend value △ P20 settingsWhen, monitor issues alarm signal；Or issue alarm signal
Number contact；Or alert；Or upload notification information.
30. shock type digital display gas density relay according to claim 29, which is characterized in that the Long-term change trend value
△P20Are as follows: using the time interval in setting, setting frequency acquisition, the density value of the different time points all collected
Mean value calculation processing is carried out, its gas density value P is obtained20Average value P20 is average, then set trend calculating cycle TPeriod, obtain
To Long-term change trend value △ P20=P20 average (previous T periodic quantities)-P20 average (T periods), i.e. average value P20 is averageFront and back cycle TPeriodDifference；Alternatively,
In the time interval T of setting, as the gas density value P of the electrical equipment monitored20Long-term change trend value △ P20=
P20 (the previous intervals T)-P20 (intervals T), i.e. density value P20The difference of surrounding time interval T；Alternatively,
In the time interval T of setting, the time span T of settingLength.Using setting time interval T, setting frequency acquisition,
The density value P of the different time points all collected20It carries out cumulative calculation and obtains aggregate-value ∑P20, obtain Long-term change trend value △
P20=∑P20 (previous T length)-∑P20 (T length instantly), i.e. surrounding time length TLengthAggregate-value ∑P20Between difference.
31. shock type digital display gas density relay according to claim 21, which is characterized in that the microprocessor
Edge calculations unit there is the leak rate L, the leak rate L=△ P for calculating monitored electrical equipment20t/ t=(PBefore 20 accurate t-
P20 accurate t.)/t, in formula: t is the time interval of setting, △ P20tFor the density value variable quantity in time interval t, PBefore 20 accurate tFor when
Between be spaced t previous moment density value, P20 accurate tFor the density value for having crossed time interval t moment.Monitor, which timely updates, issues leakage
Gas rate L notification information；Or it timely updates and uploads leak rate L notification information.
32. shock type digital display gas density relay according to claim 21, which is characterized in that the microprocessor
Edge calculations unit have the function of the control of the gas tonifying Qi to the electrical equipment monitored, the density of tonifying Qi is needed according to setting
Value P20 tonifying Qi, as the density value P monitored20 is accurateEqual to or less than density value P20 tonifying QiWhen, monitor issues tonifying Qi alarm signal；Or
Issue tonifying Qi alarm contact；Or issue tonifying Qi notification information；Or upload tonifying Qi notification information.
33. shock type digital display gas density relay according to claim 21, which is characterized in that the microprocessor
Edge calculations unit have to the gas tonifying Qi time notification information of the electrical equipment monitored；Tonifying Qi is needed according to setting
Density value P20 tonifying Qi, tonifying Qi time TThe tonifying Qi time=(P20 is accurate-P20 tonifying Qi)/L, monitor, which timely updates, issues tonifying Qi time notification information；
Or it timely updates and uploads tonifying Qi temporal information.
34. shock type digital display gas density relay according to claim 21, which is characterized in that the microprocessor
Edge calculations unit have to the gas tonifying Qi quality notification information of the electrical equipment monitored；Tonifying Qi is needed according to setting
Density value P20 tonifying Qi, the chamber volume V of electrical equipment, edge calculations unit is by being calculated gas tonifying Qi quality QTonifying Qi, monitor
Issue gas tonifying Qi quality QTonifying QiInformation；Or upload gas tonifying Qi quality QTonifying QiInformation.
35. shock type digital display gas density relay according to claim 34, which is characterized in that the microprocessor
Edge calculations unit to gas tonifying Qi quality QTonifying QiCalculation method are as follows: the density value P of tonifying Qi as needed20 need, according to tonifying Qi
Density value P20 needAnd its gas characteristic obtains mass density ρIt needs, it is known that electrical equipment gas chamber always needs gaseous mass QAlways
=ρIt needs*V；And the density value P detected at present20, according to the density value P detected at present20And its to obtain quality close for gas characteristic
Spend ρAt present, it is known that the gaseous mass Q that electrical equipment gas chamber is currentAt present=ρAt present*V；Obtain QTonifying Qi=QAlways-QAt present；Monitor is timely
It updates and issues gas tonifying Qi quality QTonifying QiNotification information；Or it timely updates and uploads gas tonifying Qi quality QTonifying QiInformation.
36. shock type digital display gas density relay according to claim 31, which is characterized in that the microprocessor
Edge calculations unit have to the gas leakage notification information of the electrical equipment monitored；According to the leakage alarm density value of setting
P20 leakage alarms, as the density value P monitored20 is accurateEqual to or less than leakage alarm density value P20 leakage alarmsWhen, monitor issues gas leakage report
Alert signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or upload gas leakage notification information；Alternatively,
According to the tendency component values of setting, when the tendency component values monitored are equal to or more than set trend sexual element
When value, monitor issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or it uploads
Gas leakage notification information；Alternatively,
According to the time interval T in setting, as the gas density value P of the electrical equipment monitored20Long-term change trend value △ P20Deng
In or greater than set gas density value P20Long-term change trend value △ P20 settingsWhen, monitor issues leakage alarm signal；Or hair
Leakage alarm signal contact out；Or issue gas leakage notification information；Or upload gas leakage notification information；Alternatively,
According to set leak rate LSetting, when the leak rate L monitored is equal to or more than set leak rate LSettingWhen, prison
Visual organ issues leakage alarm signal；Or issue leakage alarm signal contact；Or issue gas leakage notification information；Or upload gas leakage bulletin
Information.
37. shock type digital display gas density relay according to claim 31, which is characterized in that the microprocessor
Edge calculations unit have amendment leak rate L set by time interval value t.
38. shock type digital display gas density relay described according to claim 1 or 2 or 3, which is characterized in that the gas
Volume density relay further includes gas supplementing opening, and the gas supplementing opening is connected to the insulating gas in the air insulating device, by this
Gas supplementing opening carries out tonifying Qi to electrical equipment or/and micro- water is tested；Alternatively,
The gas density relay further includes Self-sealing valve, and the insulating gas in the Self-sealing valve and the air insulating device connects
It is logical, tonifying Qi is carried out to electrical equipment by the Self-sealing valve or/and micro- water is tested.
39. shock type digital display gas density relay described according to claim 1 or 2 or 3, which is characterized in that the gas
Volume density relay further includes verification interface and valve, is not torn open by the verification interface and valve to gas density relay
Unload verification；Alternatively,
The gas density relay further includes verification interface and valve, by the verification interface and valve to gas density relay
Device is not dismantled verification, or/and carries out tonifying Qi and the test of micro- water to electrical equipment by the verification interface.
40. shock type digital display gas density relay any one of according to claim 1 to 3, which is characterized in that the gas
Volume density relay is additionally provided with the insulating layer for wrapping up the first annular seal space body or/and second seal cavity.
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