CN110429005A - A kind of gas density relay and monitoring system of on-line monitoring gas micro water content - Google Patents
A kind of gas density relay and monitoring system of on-line monitoring gas micro water content Download PDFInfo
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- CN110429005A CN110429005A CN201910830221.4A CN201910830221A CN110429005A CN 110429005 A CN110429005 A CN 110429005A CN 201910830221 A CN201910830221 A CN 201910830221A CN 110429005 A CN110429005 A CN 110429005A
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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
Abstract
This application provides a kind of gas density relays for monitoring gas micro water content on-line, including shell, and the intracorporal pedestal of shell, pressure detector, temperature compensating element, signal generator and equipment jointing, it further include micro- water sensor, pressure regulating mechanism and intelligence control unit；Its gas circuit of pressure regulating mechanism is connected to pressure detector, and pressure lifting of the pressure regulating mechanism for the gas circuit of regulating gas density monitor realizes gas flowing；Micro- water sensor is connected in gas circuit with pressure regulating mechanism；Intelligence control unit, connect with micro- water sensor, pressure regulating mechanism respectively, for completing the control of pressure regulating mechanism, receives the micro- water number of gas of micro- water sensor acquisition, and teletransmission is to corresponding detection system or target device.The application realizes the on-line monitoring to the micro- water number of the gas of gas insulated electric apparatus, reduces security risk, improves the reliability of power grid.The application also provides a kind of monitoring system containing above-mentioned gas density monitor.
Description
Technical field
The present invention relates to technical field of electric power more particularly to it is a kind of apply in high pressure, middle voltage electrical equipment, monitor on-line
The gas density relay and monitoring system of gas micro water content.
Background technique
Gas density relay is generally used for monitoring and controlling high pressure, the density of middle voltage electrical equipment interior insulation gas,
Inside is equipped with contact point signal control loop, and the gas circuit of gas density relay is connected to the gas chamber of high pressure, middle voltage electrical equipment, works as inspection
Measure when there is gas leakage, the contact movement of gas density relay, generate contact point signal, contact point signal control loop according to
Contact point signal issues alarm or is latched, to realize the safe operation protection of electrical equipment.
Currently, SF6 (sulfur hexafluoride) electrical equipment has been widely used in power department, industrial and mining enterprises, electric power row is promoted
The fast development of industry.In recent years, with rapid economic development, China's power system capacity sharply expands, SF6 electrical equipment consumption
It is more and more.Effect of the SF6 gas in high voltage electric equipment is arc extinguishing and insulation, and SF6 gas is close in high voltage electric equipment
If degree reduces and the exceeded safe operation that will seriously affect SF6 high voltage electric equipment of micro-water content: 1) SF6 gas density is reduces
To the forfeiture that will lead to insulation and arc extinction performance to a certain degree.2) in the presence of some metal objects, SF6 gas is in high temperature 200
With water hydrolysis can occur for DEG C temperatures above, generate active HF and SOF2, etching insulative part and metalwork, and generate a large amount of
Heat increases air chamber pressure.3) when temperature reduces, excessive moisture content is likely to form condensation water, makes insulating part surface insulation
Intensity significantly reduces or even flashover, causes to seriously endanger.Therefore grid operation codes mandatory provision, before putting equipment in service and is transported
In row must all periodic detection be carried out to the bulk density and water content of SF6 gas.
With unattended operation transformer station to networking, digitlization direction develop and to remote control, telemetering requirement constantly add
By force, the on-line monitoring of the gas density of SF6 electrical equipment and micro-water content state has important practical significance.With Chinese intelligence
Energy power grid is constantly greatly developed, important component and key node of the intelligent high-pressure electrical equipment as intelligent substation,
Very important effect is played to the safety of smart grid.High voltage electric equipment is mostly SF6 air insulating device at present, if
Gas density reduces and (such as leaks and cause) electric property that will seriously affect equipment, causes hidden trouble to safe operation.Mesh
Gas density value in preceding on-line monitoring SF6 high voltage electric equipment is very universal, and existing gas density monitors system
(device) is essentially: 1) using the acquisition of telemetering type SF6 gas density is relay realization density, pressure and temperature, it uploads, it is real
Existing gas density on-line monitoring.2) acquisition that density, pressure and temperature are realized using gas density, uploads, and realizes gas density
On-line monitoring.SF6 gas density is relay is core and critical component.But since the environment of high voltage substation scene operation is disliked
Bad, especially electromagnetic interference is very strong, and in gas density monitoring system (device) used at present, telemetering type SF6 gas is close
Degree relay is made of mechanical density monitor and electronic long-distance transmission part；In addition, using the electricity of gas density transmitter
In net system, all also retain traditional mechanical density monitor.The mechanical density monitor has one group, two groups or three groups machine
Tool contact reaches the state of alarm, locking or superpressure in pressure, and information is transmitted to target by contact connection circuit in time and is set
Standby terminal, guarantees equipment safety operation.Monitoring system is also equipped with safe and reliable circuit transmitting function simultaneously, to realize number in real time
It is read according to teledata and establishes active platform with information monitoring, the information such as pressure, temperature, density can be transmitted to mesh in time
Marking device (such as computer terminal) realizes on-line monitoring.
Periodic inspection is carried out to the gas density relay on SF6 electrical equipment, is to prevent trouble before it happens, ensures that SF6 is electrical
The requisite measure of equipment safety reliability service；" electric power preventive trial regulation " and " prevent the 20 of power generation major accident
Five important requirements " it requires and regularly gas density relay is verified.From the point of view of practical operation situation, to gas
It is to ensure one of power equipment safety, necessary means of reliability service that density monitor, which carries out periodic check,.Therefore, SF6 at present
The verification of gas density relay has been paid much attention to and has been popularized in electric system, each power supply company, power plant, large-scale factories and miness enterprise
Industry all has been carried out.And power supply company, power plant, the field-checking detection that large factories and mines enterprises are completion gas density relay
Work need to be equipped with the SF6 gas of tester, equipment vehicle and high value.Including power failure operating loss when detection, slightly
Approximation is calculated, and the testing cost of each high voltage switchyard shared every year about arrives hundreds of thousands member or so tens of thousands of.In addition, testing staff
If field-checking non-standard operation, there is also security risks.For this purpose, being highly desirable in existing gas density relay
On, it is innovated, makes that also there is gas in the monitoring system of the gas density relay for realizing gas density on-line monitoring or composition
The verifying function of volume density relay, and then the periodic check work of (mechanical) gas density relay is completed, without maintenance
Personnel greatly improve the efficiency, reduce costs to scene.It the gas density relay of online self checking or is made from it simultaneously
Monitoring system in can accurately measure electrical equipment plenum interior micro- water number.
Summary of the invention
It is applied in high pressure, middle voltage electrical equipment the purpose of the present invention is to provide a kind of, the on-line monitoring micro- water of gas contains
The gas density relay and monitoring system of amount, contain for realizing the micro- water of gas in the electrical equipment to gas-insulated or arc extinguishing
Amount is monitored, and reduces operation expense, ensures electric power netting safe running.
To achieve the above object, the invention adopts the following technical scheme:
The application first aspect provides a kind of gas density relay for monitoring gas micro water content on-line.
The application the second aspect provides a kind of monitoring system, and the monitoring system is online as described in first aspect
The gas density relay for monitoring gas micro water content is constituted, or including the micro- water of on-line monitoring gas described in first aspect
The gas density relay of content.
A kind of gas density relay for monitoring gas micro water content on-line described herein, comprising: shell, Yi Jishe
In the intracorporal pedestal of the shell, pressure detector, temperature compensating element, at least one signal generator and equipment jointing,
The pedestal is connected with the pressure detector, the gas density relay by the equipment jointing with electrically set
It is standby to be connected；The gas density relay further includes micro- water sensor, pressure regulating mechanism and intelligence control unit；
The pressure regulating mechanism, gas circuit are connected by the pedestal with the pressure detector, the pressure tune
Section mechanism is configured as adjusting the pressure lifting of the gas circuit of the gas density relay, realizes gas flowing；
Micro- water sensor is connected in gas circuit with the pressure regulating mechanism, for monitoring the micro- water of gas on-line
Value；
The intelligence control unit is connected with micro- water sensor, receives the micro- water of gas of micro- water sensor acquisition
Value, and by the micro- water number teletransmission of the gas to corresponding detection system or target device.
Preferably, the intelligence control unit is also connected with the pressure regulating mechanism, adjusts machine for completing the pressure
Gas flowing is realized in the control of structure.
Preferably, the signal generator includes microswitch or magnetic-type electrical contact, and the gas density relay is logical
The signal generator output contact signal is crossed, the contact point signal includes alarm, and/or locking.
Preferably, the pressure detector includes Baden pipe or bellows.
Preferably, the temperature compensating element is using temperature-compensating plate or the gas of shell inner sealing.
Preferably, micro- water sensor also acquires pressure signal, temperature signal and/or gas density signal；And/or
Teletransmission pressure signal, temperature signal and/or gas density signal.
Preferably, the gas density relay further includes density measure sensor, and the density measure sensor is in gas
Road is connected with pressure detector, is used for collecting data information；The density measure sensor also with the intelligence control unit phase
Connection, the intelligence control unit receive and/or calculate the data information of the density measure sensor acquisition, and the data are believed
Teletransmission is ceased to corresponding detection system or target device；Wherein, the data information includes density value and/or pressure value, temperature
Value.
It is highly preferred that the density measure sensor includes pressure sensor and temperature sensor；Alternatively, using by pressure
The gas density transmitter of sensor and temperature sensor composition；Alternatively, using the density measure sensor of quartz tuning-fork technology.
The density measure sensor of the quartz tuning-fork technology is total to using the quartz (controlled) oscillator in vacuum is constant
Frequency of ringing and the resonance frequency of a homologous quartz (controlled) oscillator in tested gas are poor, and the density with tested gas is at just
Than obtaining the analog signal or digital signal of gas density value after treatment.
Further, the gas density relay further includes insulating part, and the pressure sensor passes through insulating part and pressure
Force snesor fixing seat is connected；Alternatively, the pressure sensor is fixed on pressure sensor fixing seat by insulating part sealing
On.
Preferably, micro- water sensor is by the direct teletransmission of the micro- water number of the gas of acquisition；Alternatively, the intelligence control unit also wraps
Include communication module, the intelligence control unit by the communication module by the micro- water number teletransmission of the gas to corresponding detection system or
Target device.
It is highly preferred that the communication modes of the communication module are wire communication or wireless communication mode.
Further, the wire communication mode includes but is not limited to RS232 bus, RS485 bus, CAN-BUS total
One or more of line, 4-20mA, Hart, IIC, SPI, Wire, coaxial cable, PLC power carrier, cable.
Further, the wireless communication mode include but is not limited to 5G/NB-IOT communication module built in sensor (such as
5G, NB-IOT), 2G/3G/4G/5G, WIFI, bluetooth, Lora, Lorawan, Zigbee, infrared, ultrasonic wave, sound wave, satellite, light
One or more of wave, quantum communications, sonar.
Preferably, the intelligence control unit embeds algorithm and control program based on the embedded system of microprocessor, automatic to control
Entire monitoring process is made, includes all peripheral hardwares, logic and input and output.
It is highly preferred that the intelligence control unit be based on general purpose computer, industrial personal computer, ARM chip, AI chip, CPU, MCU,
The embedded algorithm such as FPGA, PLC etc., industrial control mainboard, embedded main control board and control program, automatically control entire checking procedure, wrap
Containing all peripheral hardwares, logic and input and output.
Preferably, the gas density relay further includes valve and on-line testing contact point signal sampling unit；Wherein, described
The gas circuit of pressure regulating mechanism is connected with the pressure detector；One end of the valve is for connecting equipment jointing, institute
The other end for stating valve is connected with the pressure detector, alternatively, the other end of the valve is by connecting the pressure tune
The gas circuit for saving mechanism, the valve is connected with the pressure detector；The on-line testing contact point signal sampling unit
It is connected with the pressure detector, is configured as the contact letter of the gas density relay at a temperature of sampling environment
Number；The valve, the on-line testing contact point signal sampling unit are also connected with the intelligence control unit respectively, wherein described to connect
Point signal includes alarm, and/or locking.
Specifically, the gas density relay closes valve by intelligence control unit, so that gas density relay is in gas circuit
Upper and electrical equipment separates；By pressure regulating mechanism regulating gas pressure lifting, so that contact occurs for gas density relay
Movement, the contact point signal that contact generates when acting are transmitted to intelligence control unit, intelligence control by on-line testing contact point signal sampling unit
Density value when unit is acted according to contact detects the contact action value and/or return value of gas density relay, online complete
At the verifying work of gas density relay, the contact point signal includes alarm, and/or locking.
Preferably, the gas density relay further includes indication mechanism, and the indication mechanism includes machine core, pointer, quarter
Scale, the machine core are fixed in the shell；One end of the temperature compensating element also passes through connecting rod and connect with the machine core
Or it is directly connect with the machine core；The pointer is installed on the machine core and is set to before the dial, the pointer knot
It closes the dial and shows gas density value；And/or
The indication mechanism includes the digital device or liquid crystal device that there is indicating value to show.
Preferably, the gas density relay further includes the display interface for human-computer interaction, and real-time display is current
Data, and/or support data input.Specifically, including the micro- water number of real-time online gas is shown, gas density value is shown, pressure
Value display, temperature value is shown, line state information is shown, analysis of trend, the inquiry of historical data, Real-time Alarm etc..
Preferably, the intelligence control unit is equipped with electric interfaces, and the electric interfaces are stored for completing test data, and/
Or test data export and/or test data print, and/or carry out data communication, and/or input analog quantity, number with host computer
Word amount information.
Prevent user's misconnection from interface being caused to damage, and/or prevent electromagnetic interference it is highly preferred that the electric interfaces are equipped with
Electric interfaces protect circuit.
Preferably, clock is additionally provided on the intelligence control unit, the clock is used for recording test time.
Preferably, the control of the intelligence control unit is by field control, and/or passes through Background control.
Preferably, the gas density relay further includes multiple-pass joint, and the pressure regulating mechanism is arranged described more
On pass joint；And/or micro- water sensor is arranged on the multiple-pass joint.
It is highly preferred that the gas density relay further includes Self-sealing valve, the Self-sealing valve is arranged in the multiple-pass joint
On.
Further, the gas density relay further includes tonifying Qi interface, and the tonifying Qi interface is arranged in the pressure
On regulating mechanism；Alternatively, the tonifying Qi interface is arranged on the electrical equipment；Alternatively, the tonifying Qi interface is arranged described
On multiple-pass joint；Alternatively, the tonifying Qi interface is arranged on the Self-sealing valve.
Further, the gas density relay further includes connector, and the connector is used for pressure regulating mechanism
It seals against each other and is connected to multiple-pass joint, fixation is installed near multiple-pass joint convenient for pressure regulating mechanism.
Further, the gas density relay further includes pressure regulating mechanism fixing piece, the pressure regulating mechanism
Fixing piece is for installing fixation pressure regulating mechanism；The pressure regulating mechanism fixing piece is arranged on electrical equipment or multi-pass connects
On head.
Further, the pressure regulating mechanism fixing piece is arranged near gas density relay or multiple-pass joint.
Preferably, micro- water sensor and intelligence control unit are set together, and are integrated；Alternatively, micro- water
The intelligence that sensor and intelligence control unit are integrated declines water sensor.
Preferably, micro- water sensor probe setting multiple-pass joint connection electrical equipment and pressure regulating mechanism it
Between main air passage on.
Preferably, the pressure regulating mechanism is sealed in a cavity or shell.
Preferably, the pressure regulating mechanism is linked together with the pressure detector by connecting tube.
Preferably, the pressure regulating mechanism makes the sealed gas chamber using because of variation of ambient temperature for a sealed gas chamber
There are the temperature difference between gas in interior gas and electrical equipment, and then realize gas flowing.
It is highly preferred that the pressure regulating mechanism is a sealed gas chamber, the outside or inside of the sealed gas chamber, which is equipped with, to be added
Thermal element, and/or cooling module are caused described by heating the heating element, and/or being freezed by the cooling module
The temperature change of gas in sealed gas chamber, and then realize gas flowing.
Further, the heating element, and/or the cooling module are semiconductor.
Further, the pressure regulating mechanism further includes heat preservation member, and the heat preservation member is set to the outer of the sealed gas chamber
Face.
Preferably, the pressure regulating mechanism is cavity open at one end, and the other end of the cavity passes through described in connection
Pedestal is connected with the pressure detector；There is piston in the cavity, one end of the piston is connected with an adjusting rod, institute
The outer end connection driving part of adjusting rod is stated, the other end of the piston protrudes into the opening, and the inner wall with the cavity
In sealing contact, the driving part drives the adjusting rod and then the piston is driven to move in the cavity.
Preferably, the pressure regulating mechanism is a sealed gas chamber, and the inside of the sealed gas chamber is equipped with piston, the work
Plug is in sealing contact with the inner wall of the sealed gas chamber, and the outside of the sealed gas chamber is equipped with driving part, and the driving part is logical
Crossing electromagnetic force pushes the piston to move in the cavity.
Preferably, the pressure regulating mechanism is the air bag that one end connects driving part, and the air bag is in the driving portion
Generating body product variation under the driving of part, the air bag are connected by connecting the pedestal with the pressure detector.
Preferably, the pressure regulating mechanism is bellows, and one end of the bellows is by connecting the pedestal and institute
It states pressure detector to be connected, the other end of the bellows stretches under the driving of driving part.
The driving part in above-mentioned pressure regulating mechanism includes but is not limited to magnetic force, motor (variable-frequency motor or stepping
Motor), reciprocating mechanism, Carnot cycle mechanism, one of pneumatic element.
Preferably, the pressure regulating mechanism is a vent valve, and the vent valve is arranged in a closed gas chamber, or
The vent valve is connect with a closed gas chamber.
It is highly preferred that the pressure regulating mechanism further includes the flow valve for controlling gas release flow.
It is highly preferred that the vent valve be solenoid valve or motor-driven valve or it is other electricity or that realizes by way of gas put
Air valve.
Preferably, the pressure regulating mechanism is a compressor.
Preferably, the pressure regulating mechanism is a pump.
It is highly preferred that the pump including but not limited to makes one of press pump, booster pump, electric air pump, Electromagnetic air pump.
It is highly preferred that the pressure regulating mechanism and pressure detector are integrated.
Preferably, the pressure regulating mechanism further includes capillary, and the capillary is set to pressure regulating mechanism and multi-pass
Between the gas circuit of connector, the pressure regulating mechanism is connected in gas circuit by capillary with multiple-pass joint.
It is highly preferred that the gas density relay further includes thermal insulator, the thermal insulator is arranged in pressure regulating mechanism
Between multiple-pass joint.
The pressure regulating mechanism includes capillary, sealed chamber and heating element, by heating heating element, realization gas
Body flowing, monitors the micro- water number of gas on-line.
Preferably, the gas density relay further includes the power supply for power supply, and the power supply includes power supply electricity
Perhaps perhaps perhaps perhaps mutual inductor takes electric obtained power supply or induced electricity to solar energy to recyclable rechargeable battery to battery on road
Source.
Preferably, the gas density relay further includes the decomposition product sensor for monitoring gas decomposition product on-line,
The decomposition product sensor is connected with the intelligence control unit.
Preferably, the gas density relay further includes the camera for monitoring.
Preferably, the gas density relay further includes analysis system (for example, technocracy analysis system), to gas
The micro- water number of density value, gas, monitoring element are tested and analyzed, are determined.
Preferably, the gas density relay further includes the shielding that shielding action can be played to electric field, and/or magnetic field
Part.
Preferably, the gas density relay is equipped with abnormal timely bulletin.Such as broken string, short-circuit alarming, sensor damage
Bad, gas pressure has the bulletins such as raising trend.
Preferably, the gas density relay is additionally provided with the temperature protective device to electronic component, for guaranteeing electricity
Sub- component reliably working under the environment temperature of low temperature or high temperature.
It is highly preferred that the temperature protective device includes heater and/or radiator (for example, fan), it is lower than in temperature
Heater when setting value opens radiator (for example, fan) when temperature is higher than setting value.
Compared with prior art, technical solution of the present invention has the advantages that
1) a kind of gas density relay for monitoring gas micro water content on-line, including shell are provided, and is set to institute
The intracorporal pedestal of shell, pressure detector, temperature compensating element, at least one signal generator and equipment jointing are stated, is also wrapped
Include micro- water sensor, pressure regulating mechanism and intelligence control unit；The pressure regulating mechanism, gas circuit by the pedestal with it is described
Pressure detector is connected, and the pressure regulating mechanism is configured as adjusting the pressure liter of the gas circuit of the gas density relay
Drop realizes gas flowing；Micro- water sensor is connected in gas circuit with the pressure regulating mechanism；The intelligence control unit,
It is connected respectively with micro- water sensor, the pressure regulating mechanism, for completing the control of the pressure regulating mechanism, connects
Receive the micro- water number of gas of the micro- water sensor acquisition, and teletransmission is to corresponding detection system or target device.The application realizes
To the on-line monitoring of the gas of gas insulated electric apparatus micro- water number, security risk is reduced, substantially increase power grid can
By property.
2) a kind of monitoring system of gas density relay containing above-mentioned on-line monitoring gas micro water content is provided.
Detailed description of the invention
Attached drawing is constituted part of this application to be used to provide further understanding of the present application, the schematic implementation of the application
Example and its explanation are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the gas density relay of on-line monitoring gas micro water content of embodiment one；
Fig. 2 is a kind of structural schematic diagram of the gas density relay of on-line monitoring gas micro water content of embodiment two；
Fig. 3 is a kind of control circuit signal of the gas density relay of on-line monitoring gas micro water content of embodiment three
Figure；
Fig. 4 is a kind of structural schematic diagram of the gas density relay of on-line monitoring gas micro water content of example IV；
Fig. 5 is a kind of structural schematic diagram of the gas density relay of on-line monitoring gas micro water content of embodiment five；
Fig. 6 is a kind of structural schematic diagram of the gas density relay of on-line monitoring gas micro water content of embodiment six；
Fig. 7 is a kind of structural schematic diagram of the gas density relay of on-line monitoring gas micro water content of embodiment seven；
Fig. 8 is a kind of configuration diagram of monitoring system of example IV；
Fig. 9 is a kind of configuration diagram of monitoring system of embodiment five；
Figure 10 is a kind of configuration diagram of monitoring system of embodiment six.
Specific embodiment
The present invention provides the gas density relay and monitoring system of a kind of on-line monitoring gas micro water content, to make this hair
Bright purpose, technical solution and effect are clearer, clear, referring to the drawings and give an actual example to the present invention further specifically
It is bright.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not intended to limit the present invention.
Embodiment one:
Fig. 1 is a kind of structural schematic diagram of gas density relay for monitoring gas micro water content on-line.As shown in Figure 1,
Gas density relay includes gas density relay ontology 1, and the gas density relay ontology 1 includes shell, Yi Jishe
In the intracorporal pedestal of the shell, pressure detector, temperature compensating element, at least one signal generator and equipment jointing,
The pedestal is connected with the pressure detector, the gas density relay by the equipment jointing with electrically set
It is standby to be connected.Wherein, the signal generator includes microswitch or magnetic-type electrical contact, and the gas density relay passes through
The signal generator output contact signal, the contact point signal include alarm, and/or locking；The pressure detector includes
Baden pipe or bellows；The temperature compensating element is using temperature-compensating plate or the gas of shell inner sealing.
The gas density relay further include: pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5, In
Line verifies contact point signal sampling unit 6, intelligence control unit 7, multiple-pass joint 9, tonifying Qi interface 10 and micro- water sensor 13.The valve 4
One end be sealedly attached on electrical equipment, the other end of the valve 4 is connected with multiple-pass joint 9.The valve 4 is sealed in first
Inside shell 41, the control cable of valve 4 is drawn by drawing wire seal 42 with first shell 41 seals first, is set in this way
Meter ensures that valve 4 keeps sealing, can work reliably and with long-term.Tonifying Qi interface 10 is set up directly on electrical equipment, can be to electrical
Equipment carries out tonifying Qi or the test of micro- water.Gas density relay ontology 1 is mounted on multiple-pass joint 9；The pressure sensor 2,
Temperature sensor 3, on-line testing contact point signal sampling unit 6 and gas density relay ontology 1 are set together.Pressure sensing
Device 2 is connected in gas circuit with the pressure detector of gas density relay ontology 1；The pressure regulating mechanism 5 is mounted on more
On pass joint 9, pressure regulating mechanism 5 is connected in gas circuit with the pressure detector of gas density relay ontology 1；The pressure
Power regulating mechanism 5 is sealed in inside second shell 55, and the control cable of pressure regulating mechanism 5 with second shell 55 by sealing
Second draw wire seal 56 draw, in this way design ensure pressure regulating mechanism 5 guarantee reliably and with long-term seal, can for a long time may be used
By work.The pressure sensor 2, temperature sensor 3, the valve 4, the pressure regulating mechanism 5 respectively with 7 phase of intelligence control unit
Connection.Micro- water sensor 13, one end are connect with the multiple-pass joint 9, and the other end is connect with the intelligence control unit 7, institute
Micro- 13 combination pressure regulating mechanism 5 of water sensor is stated to the circulation of gas, micro- water of the gas in accurate measurements to electrical equipment
Content.
The pressure regulating mechanism 5 of the present embodiment is cavity open at one end, and having piston 51 in the cavity, (piston 51 is equipped with
Sealing ring 510), one end of the piston 51 is connected with an adjusting rod, and the outer end of the adjusting rod connects driving part 52, institute
The other end for stating piston 51 protrudes into the opening, and is in contact with the inner wall of the cavity, and the driving part 52 drives institute
It states adjusting rod and then the piston 51 is driven to move in the cavity, make its seal cavity that volume change occur, and then complete
The lifting of pressure, makes gas flow, and plays the role of gas circulation.The driving part 52 includes but is not limited to magnetic
One of power, motor (variable-frequency motor or stepper motor), reciprocating mechanism, Carnot cycle mechanism, pneumatic element.
In another preferred embodiment, the pressure regulating mechanism 5 can also be a solenoid valve, and solenoid valve is sealed in one
Enclosure interior.Pressure change occurs for pressure regulating mechanism 5, and then complete so that solenoid valve is opened according to the control of intelligence control unit 7
At the lifting of pressure.
In another preferred embodiment, the pressure regulating mechanism 5 can also be made of bellows and driving part 52,
The pressure detector of bellows and gas density relay ontology 1 is sealed connected together, and forms a reliable seal cavity.
Pressure regulating mechanism 5 is according to the control of intelligence control unit 7, so that driving part 52 pushes bellows that volume change, Jin Ermi occurs
It seals cavity and volume change occurs, to complete pressure lifting.
In another preferred embodiment, the pressure regulating mechanism 5 can also be by gas chamber, heating element, heat preservation member group
At the outside (being also possible to inside) of gas chamber has heating element, by heating, leads to the variation of temperature, and then complete pressure
Lifting.
Certainly, pressure regulating mechanism 5 can also there are many other forms, be not limited to it is above-mentioned cited, it is other can be real
The mechanism of existing pressure lifting function is also encompassed by the protection scope of the application.
Embodiment two:
Fig. 2 is a kind of structural schematic diagram of gas density relay for monitoring gas micro water content on-line.As shown in Fig. 2,
Gas density relay is in addition to including that the gas density relay ontology 1 in embodiment one (contains shell, and is set to the shell
Interior pedestal, pressure detector, temperature compensating element, at least one signal generator and equipment jointing), it further include pressure
It is sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5, on-line testing contact point signal sampling unit 6, intelligence control unit 7, more
Pass joint 9, tonifying Qi interface 10, Self-sealing valve 11, micro- water sensor 13, decomposition product sensor 15.One end of the Self-sealing valve 11 is close
Envelope is connected on gas insulated electric apparatus, and the other end of the Self-sealing valve 11 is connected with one end of valve 4, and tonifying Qi interface 10 connects
It connects on Self-sealing valve 11；The other end of the valve 4 is connected with multiple-pass joint 9.Gas density relay ontology 1, pressure sensing
Device 2, pressure regulating mechanism 5, micro- water sensor 13, decomposition product sensor 15 are arranged on multiple-pass joint 9；Temperature sensor 3 is set
It sets on electrical equipment.On-line testing contact point signal sampling unit 6, intelligence control unit 7 are set together.The pressure sensor 2,
Temperature sensor 3, micro- water sensor 13, decomposition product sensor 15 are connected with intelligence control unit 7.Pressure sensor 2, gas density
Relay ontology 1 is connected in gas circuit with pressure regulating mechanism 5；The valve 4 is connected with intelligence control unit 7；The pressure tune
Section mechanism 5 is connected with intelligence control unit 7.
Embodiment three:
Fig. 3 is a kind of control circuit schematic diagram of gas density relay for monitoring gas micro water content on-line.Such as Fig. 3 institute
Show, the on-line testing contact point signal sampling unit 6 of the present embodiment is equipped with protection circuit, including the first connection circuit and the second connection
Circuit, described first connects the contact and contact point signal control loop of gas density relay ontology 1 described in circuit connection, described
The contact and the intelligence control unit 7 of gas density relay ontology 1 described in second connection circuit connection, under non-verification state,
The second connection circuit disconnects, the first connection closing of circuit；Under verification state, the on-line testing contact point signal is adopted
Sample unit 6 cuts off the first connection circuit, the second connection circuit is connected to, by the gas density relay ontology 1
Contact is connected with the intelligence control unit 7.
Specifically, the first connection circuit includes the first relay J1, and the second connection circuit includes the second relay
Device J2.The first relay J1 is equipped with normally closed contact J11 and J12, and the normally closed contact J11 and J12 is connected on the contact
In signal control loop；The second relay J2 is equipped with normal opened contact J21 and J22, and the normal opened contact J21 is connected with J22
In the contact P of the gas density relay ontology 1JOn；It is also possible that the first relay J1 and the second relay J2 are combined into one
Body, as with the relay of normally-open normally-close contact.Under non-verification state, the normally closed contact J11 and J12 closure are described
Normal opened contact J21 and J22 are disconnected, contact P described in the gas density relay real-time monitoringJOutput state；In verification shape
Under state, the normally closed contact J11 and J12 are disconnected, the normal opened contact J21 and J22 closure, the gas density relay ontology
1 contact PJIt is connected by the normal opened contact J21 and J22 with the intelligence control unit 7.
The intelligence control unit 7 is mainly made of processor 71 (U1), power supply 72 (U2).Processor 71 (U1) can be logical
With computer, industrial personal computer, CPU, single-chip microcontroller, ARM chip, AI chip, MCU, FPGA, PLC etc., industrial control mainboard, embedded master control
Plate etc. and other intelligent integrated circuits.Power supply 72 (U2) can be Switching Power Supply, alternating current 220V, DC power supply, LDO, can compile
Journey power supply, solar energy, battery, rechargeable battery, battery etc..The pressure sensor 2 of pressure acquisition P may is that pressure sensor,
The various pressure elements such as pressure transmitter.The temperature sensor 3 of temperature acquisition T may is that temperature sensor, temperature transmitter etc.
Various temperature-sensing elements.Valve 4 may is that solenoid valve, motor-driven valve, pneumatic operated valve, ball valve, needle-valve, regulating valve, pipe valve etc. can open and
Turn off gas circuit, or even the element of control flow.It is automanual to can also be hand-operated valve.Pressure regulating mechanism 5 may is that electric adjustable
Save piston, motorized adjustment cylinder, booster pump, gas cylinder pressurization and valve, solenoid valve, flow controller etc..It is automanual can be with
It is the pressure regulating mechanism manually adjusted.
The working principle of the present embodiment one is as follows:
Intelligence control unit 7 monitors the gas pressure P and temperature T of electrical equipment according to pressure sensor 2, temperature sensor 3,
Obtain corresponding 20 DEG C of pressure value Ps20(i.e. gas density value).When needing check-up gas density electrical relay ontology 1, at this time if
Gas density value P20The safety check density value P of >=settingS, the closing of 7 control valve 4 of intelligence control unit, so that gas density relay
Device ontology 1 separates in gas circuit with electrical equipment.
Then, the control of intelligence control unit 7 disconnects the contact point signal control loop of gas density relay ontology 1, i.e., online school
The normally closed contact J11 and J12 for testing the first relay J1 of contact point signal sampling unit 6 are disconnected, so that on-line testing gas density
It will not influence the safe operation of electrical equipment when relay ontology 1, will not accidentally send out alarm signal, or locking control in verification
Circuit processed.Because having carried out gas density value P before starting verification20The safety check density value P of >=settingSMonitoring and
Judgement, the gas of electrical equipment be in operational envelope, moreover gas leakage is a slow process, when verification is peace
Complete.Meanwhile the contact sample circuit of the contact of gas density relay ontology 1, i.e. on-line testing are connected to by intelligence control unit 7
The normal opened contact J21 and J22 of second relay J2 of contact point signal sampling unit 6 is closed, at this time gas density relay ontology 1
Contact PJIt is connected by the normal opened contact J21 and J22 of the second relay J2 with intelligence control unit 7.
Then, intelligence control unit 7 control pressure regulating mechanism 5 driving part 52 (can mainly use motor (motor) and
Gear realizes that mode is various, flexible), and then adjust pressure regulating mechanism 5 and volume change occurs, make gas density relay
The pressure of the gas of ontology 1 gradually declines, so that contact point signal movement, contact point signal occur for gas density relay ontology 1
Movement uploads to intelligence control unit 7,7 basis of intelligence control unit by the second relay J2 of on-line testing contact point signal sampling unit 6
The pressure value P and temperature T value that contact point signal measures when acting, pressure value P when becoming 20 DEG C corresponding by weight of gas characteristic20
(density value), so that it may detect the contact action value P of gas density relayD20.Report to gas density relay ontology 1
After alert and/or block signal contact point signal action value all detected, then pass through the control pressure regulating mechanism of intelligence control unit 7
5 motor (motor or variable-frequency motor) adjusts pressure regulating mechanism 5, makes the pressure of the gas of gas density relay ontology 1
It gradually rises, the return value of the alarm of test to gas density relay ontology 1 and/locking contact point signal.It verifies repeatedly
Repeatedly (such as 2~3 times), then calculate its average value, and this completes the verifying works of gas density relay.
After the completion of verification, the normal opened contact J21 and J22 of the second relay J2 of on-line testing contact point signal sampling unit 6
It disconnects, at this time the contact P of gas density relay ontology 1JJust pass through the contact normally opened J21 and J22 of the second relay J2 of disconnection
It is not connected with intelligence control unit 7.7 control valve 4 of intelligence control unit open so that gas density relay ontology 1 in gas circuit with electricity
Gas equipment is connected.Then, the normally closed contact J11 and J12 of the first relay J1 of on-line testing contact point signal sampling unit 6 is closed
It closes, the contact point signal control loop of gas density relay ontology 1 works normally, and gas density relay security monitoring is electrically set
Standby gas density, makes electrical equipment securely and reliably work.Thus facilitate the on-line testing work for completing gas density relay
Make, while will not influence the safe operation of electrical equipment.
After gas density relay ontology 1 completes verifying work, gas density relay is just determined, Ke Yigao
Show testing result.Mode is flexible, specifically can be with: 1) gas density relay can bulletin on the spot, such as by indicator light,
The display such as digital or liquid crystal；2) or by online teletransmission communication modes implement to upload, such as background monitoring terminal can be uploaded to；
3) or by wirelessly uploading, specific terminal is uploaded to, such as can wirelessly upload mobile phone；4) it or by other approach uploads；
5) it or abnormal results by alarm signal line or dedicated signal lines uploads；6) it individually uploads, or bundlees and upload with other signals.
In short, after the on-line testing that gas density relay completes gas density relay ontology 1 works, it, can be automatic if any exception
Alarm is issued, distal end can be uploaded to, or can be sent on specified receiver, such as be sent to mobile phone.Alternatively, completing school
After testing work, if any exception, intelligence control unit 7 can upload distal end by the alarm contact point signal of gas density relay ontology 1
(monitoring room, background monitoring platform etc.), and bulletin can also be shown on the spot.The on-line testing of simple version, can have verification
Abnormal result is uploaded by alarm signal line.Can be uploaded with certain rule, for example, it is abnormal when, alarm contact simultaneously
Join a contact, regularly open and close, situation can be obtained by parsing；Or by independent checking signal line
It passes.It can specifically be uploaded well or problematic upload, or check results be uploaded by individual checking signal line, or logical with state
It crosses and shows on the spot, alarm on the spot, or by wirelessly uploading, network and upload with smart phone.Its communication mode be it is wired or wireless,
Wired communication modes can for the industrial bus such as RS232, RS485, CAN-BUS, fiber optic Ethernet, 4-20mA, Hart, IIC,
SPI, Wire, coaxial cable, PLC power carrier etc.；Wireless communication mode can for 2G/3G/4G/5G etc., WIFI, bluetooth,
Lora, Lorawan, Zigbee, infrared, ultrasonic wave, sound wave, satellite, light wave, quantum communications, sonar, 5G/NB- built in sensor
IOT communication module (such as NB-IOT).In short, can be with multiple form, multiple combinations, fully ensure that gas density relay can
By performance.
Gas density relay has safety protection function, that is, when being lower than setting value, gas density relay is automatically no longer
On-line testing is carried out to gas density relay ontology 1, and issues bulletin signal.For example, when detecting that gas density value is less than
Setting value PSWhen, just no longer verify；Only as gas density value >=(alarm pressure value+0.02MPa), online school just can be carried out
It tests.
Gas density relay can carry out on-line testing according to the time of setting, can also be according to the temperature (example of setting
Such as limit high temperature, high temperature, limit low temperature, low temperature, room temperature, 20 degree) carry out on-line testing.High temperature, low temperature, room temperature, 20 DEG C of rings
When border temperature online verifies, error determines to require to be different, such as when 20 DEG C of environment temperature verifications, can be according to gas
The required precision of density monitor is 1.0 grades or 1.6 grades, and when high temperature can be 2.5 grades.Specifically can according to the requirement of temperature,
Implement according to relevant criterion.Such as according to 4.8 temperature in DL/T 259 " sulfur hexafluoride gas density relay verification regulation "
Spend compensation performance regulation, required precision corresponding to each temperature value.
Gas density relay can be according to gas density relay ontology 1 at different temperature, the different periods
Carry out the comparison of its error performance.That is different times, the comparison in same temperature ranges stated, determine gas density relay ontology 1,
The performance of electrical equipment, comparison, history and present comparison with history each period.
Electrical equipment can verify multiple (such as 2~3 times) repeatedly and calculate its average value according to each check results.
When necessary, on-line testing can be carried out to gas density relay ontology 1 at any time.
When gas density relay completes verification, it can carry out being compared judgement automatically, if error differs greatly, Jiu Huifa
Abnormal prompt out: gas density relay or pressure sensor, temperature sensor are problematic.I.e. gas density relay can be complete
At the phase mutual verifying function of gas density relay and pressure sensor, temperature sensor or density transmitter, there is artificial intelligence
Ability can be proofreaded；After completing verifying work, verification report can be automatically generated, if any exception, alarm, or hair can be issued automatically
It is sent on specified receiver, such as is sent to mobile phone；Scene shows gas density value and check results on the spot, or passes through backstage
Show that gas density value and check results, concrete mode can be flexible；With real-time online gas density value, pressure value, temperature
The data such as value show, the functions such as analysis of trend, the inquiry of historical data, Real-time Alarm；Gas density value can be monitored on-line,
Or gas density value, pressure value, temperature value；It, can be to abnormal timely bulletin, such as broken string, short circuit report with self-diagnostic function
The bulletins such as police, sensor degradation；Can according to gas density relay at different temperature, the different periods carry out its mistake
The comparison of poor performance.That is different times, the comparison in same temperature ranges stated, determine the performance of gas density relay.With going through
Comparison, history and the present comparison in history each period.It can gas density value, gas density relay to electrical equipment itself
Device ontology 1, pressure sensor 2, temperature sensor 3 carry out normal and abnormal judgement and analysis, compare；Also contain analysis system
(technocracy analysis system) tests and analyzes the monitoring of gas density value, gas density relay, monitoring element, is determined,
Where know problem；Also the contact point signal state of gas density relay ontology 1 is monitored, and its state is implemented
Teletransmission.Can the contact point signal state for being known that gas density relay ontology 1 from the background be disconnect or closure, thus
More one layer of monitoring, improve reliability；Detection, or inspection can also be can be carried out to the temperature compensating of gas density relay ontology 1
It surveys and determines；Can also the contact contact resistance to gas density relay ontology 1 detect, or detection and determine；Have
Data analysis, data processing function can carry out corresponding fault diagnosis and prediction to electrical equipment.
As long as the mutual test data of pressure sensor 2, temperature sensor 3, gas density relay ontology 1 is kiss
It is closing, normal, so that it may to illustrate that gas density relay is normally, can thus not have to verification gas density relay
Device also not verify other devices, can exempt to verify with the life-cycle.Unless in substation some electrical equipment pressure
The mutual test data of force snesor 2, temperature sensor 3, gas density relay ontology 1 be misfit, it is abnormal,
Just maintenance personal is arranged to go to handle.And in the case of coincideing, normal, there is no need to be verified, so, mention significantly
High reliability, greatly improves the efficiency, reduces costs.
Example IV:
Fig. 4 is a kind of structural schematic diagram of density monitor for monitoring gas micro water content on-line.As shown in figure 4, gas
Density monitor includes: gas density relay ontology 1, density monitor connector 1010, pressure regulating mechanism 5, intelligence control unit
7, multiple-pass joint 9 and micro- water sensor 13.The pressure regulating mechanism 5 specifically include that sealed gas chamber 57, heating element, and/or
Cooling module 58, heat preservation member 59, temperature sensor or controller 510, capillary 511, thermal insulator 512, shell 513.This implementation
In, the pressure regulating mechanism 5 is a sealed gas chamber 57, the outside or inside of the sealed gas chamber 57 be equipped with heating element and/
Or cooling module 58 leads to the sealed gas chamber by heating the heating element, and/or freezing by the cooling module
The temperature change of gas in 57, and then realize gas flowing, micro- water number is accurately tested in realization.Due to increasing hair in the design
Tubule 511 and thermal insulator 512, extend micro- water sensor 13 and sealed gas chamber 57, heating element, and/or cooling module 58 it
Between distance, and thermal insulator 512 is increased, so that the heating or refrigeration of heating element, and/or cooling module 58, not will lead to
The temperature of micro- water sensor 13 is raised and lowered, and keeps test more accurate, much sooner, being capable of real-time monitoring micro-water content.Institute
State capillary 511 using multiple one enclose wind stack, specifically multiple-turns wound stacks, increase gas flow
Distance can actually reduce space length.
Further, in this embodiment the gas density relay can also include connector, the connector is used for
Pressure regulating mechanism is sealed against each other with multiple-pass joint and is connected to, fixation is installed near multiple-pass joint convenient for pressure regulating mechanism.
Alternatively, the gas density relay further includes pressure regulating mechanism fixing piece, the pressure regulating mechanism is fixed
Part is for installing fixation pressure regulating mechanism；The pressure regulating mechanism fixing piece is arranged on electrical equipment or multiple-pass joint
On.The pressure regulating mechanism fixing piece is arranged near relay or multiple-pass joint.
Embodiment five:
Fig. 5 is a kind of structural schematic diagram of gas density relay for monitoring gas micro water content on-line.As shown in figure 5,
Gas density relay includes: gas density relay ontology 1, density monitor connector 1010, pressure regulating mechanism 5, intelligence control
Unit 7, multiple-pass joint 9 and micro- water sensor 13.The pressure regulating mechanism 5 specifically includes that bellows 54, driving part 52.
The pressure regulating mechanism 5 is bellows 54, and one end of the bellows 54 is connected to the multiple-pass joint, the bellows 54
The other end stretches under the driving of driving part 52, leads to the pressure change of the gas in the bellows 54, and then realize gas
Micro- water number is accurately tested in body flowing, realization, much sooner, being capable of real-time monitoring micro-water content even if test is more accurate.
Embodiment six:
Fig. 6 is a kind of structural schematic diagram of gas density relay for monitoring gas micro water content on-line.As shown in fig. 6,
Gas density relay includes: gas density relay ontology 1, density monitor connector 1010, pressure regulating mechanism 5, intelligence control
Unit 7, multiple-pass joint 9 and micro- water sensor 13.The pressure regulating mechanism 5 specifically includes that sealed gas chamber 57, capillary 511.
In this implementation, the pressure regulating mechanism 5 is a sealed gas chamber 57, using because of variation of ambient temperature, sealed gas chamber 57 and electrical
The heat absorption of equipment 8 or coefficient of heat transfer are different, make between the gas in the gas and electrical equipment 8 in the sealed gas chamber 57
There are the temperature difference, and then realize gas flowing, and micro- water number is accurately tested in realization.Micro- water is sensed due to taking in design
The probe 1301 of device 13 is arranged on multiple-pass joint on the main air passage between electrical equipment 8 and pressure regulating mechanism 5；And
Capillary 511 is increased in design, improves flowing time in this way, improves flowing concentration degree, greatly strengthens gas flowing
Effect keeps test more accurate, much sooner, being capable of real-time monitoring micro-water content.Equally, the capillary 511 is using multiple
One, which encloses winding, stacks, and specifically multiple-turns wound stacks, and increases gas flow distance, can actually reduce
Space length.
Embodiment seven:
Fig. 7 is a kind of structural schematic diagram of gas density relay for monitoring gas micro water content on-line.As shown in fig. 7,
Gas density relay includes: gas density relay ontology 1, density monitor connector 1010, pressure regulating mechanism 5, intelligence control
Unit 7, multiple-pass joint 9, tonifying Qi interface 10 and micro- water sensor 13.Compared with Example 4 compared with, the difference is that, designing
On, it takes and electrical equipment 8 and pressure regulating mechanism 5 is arranged on multiple-pass joint in the probe 1301 of micro- water sensor 13
Between main air passage on, improve flowing concentration degree in this way, greatly strengthen gas flow effect, make test it is more accurate,
It much sooner, being capable of real-time monitoring micro-water content.Equally, the capillary 511 encloses winding using multiple one and stacks,
Specifically multiple-turns wound stacks, and increases gas flow distance, can actually reduce space length.
Embodiment eight:
Fig. 8 is a kind of configuration diagram of monitoring system.As shown in figure 8, multiple high-voltage electricity equipped with sulfur hexafluoride air cell
Gas equipment, multiple gas density relays for monitoring gas micro water content on-line pass sequentially through hub, IEC61850 agreement
Converter is connect with background monitoring terminal.Wherein, each gas density relay is separately positioned on corresponding sulfur hexafluoride air cell
High voltage electric equipment on.In the present embodiment, background monitoring terminal PC by hub HUB0 and multiple hub HUB (HUB1,
HUB2 ... HUBm) communication.The gas density relay of one group of on-line monitoring gas micro water content of each hub HUB connection,
As hub HUB1 connection gas density relay Z11, Z12 ... Z1 n, hub HUB2 connection gas density relay
Z21, Z22 ... Z2n ... ..., hub HUBm connection gas density relay Zm1, Zm2 ... Zmn, wherein m, n are
Natural number.
Background monitoring terminal includes: 1) daemon software platform: based on Windows, Linux and other etc. or VxWorks,
Android,Unix,UCos,FreeRTOS,RTX,embOS,MacOS.2) daemon software key business module: such as permission pipe
Reason, equipment management, data are stored in inquiry etc. and user management, alarming and managing, real time data, historical data, in real time song
Line, history curve, configuration management, data acquisition, data parsing, record condition, abnormality processing etc..3) interface configuration: such as
The interface Form, web interface, configuration interface etc..
Embodiment nine:
Fig. 9 is a kind of configuration diagram of monitoring system.The present embodiment increases the network switch compared with embodiment eight
Gateway, integrated application server S erver, protocol converter/on-line monitoring intelligent cell ProC.In the present embodiment, backstage
Monitor terminal PC passes through two integrated application server Ss erver1, Server2 of network switch Gateway connection, two synthesis
Application server Server1, Server2 pass through station level A net and B net and multiple protocol converters/on-line monitoring intelligent cell
ProC (ProC1, ProC2 ... ProCn) it communicates, protocol converter/on-line monitoring intelligent cell ProC passes through R5485 network
With multiple hub HUB (HUB1, HUB2 ... HUBm) communication.One group of micro- water of on-line monitoring gas of each hub HUB connection
The gas density relay of content, as hub HUB1 connection gas density relay Z11, Z12 ... Z1n, hub HUB2
Connection gas density relay Z21, Z22 ... Z2n ... ..., hub HUBm connection gas density relay Zm1,
Zm2 ... Zmn, wherein m, n are natural number.
Embodiment ten:
Figure 10 is a kind of configuration diagram of monitoring system.The present embodiment is the configuration diagram of wireless transmission method, figure
Middle dashed box indicate wireless module Wn and monitor on-line gas micro water content gas density relay Zn can be made one or
Fission, concrete scheme can be flexible.
Multiple integrated application server S erver1, Server2 ... Server n passes through cloud Cluod, radio network gateway
The wireless module of the gas density relay of (Wireless Gateway) and each on-line monitoring gas micro water content and each
The gas density relay of a on-line monitoring gas micro water content carries out wireless communication.Wherein, n is natural number.
Other than monitoring gas micro water content on-line, system can be with inside electric appliances such as real-time monitoring breaker, GIS
The physical quantitys such as temperature, pressure, the density of SF6 gas and its variation tendency, and there is communication interface, it upload the data to backstage and supervises
Control terminal realizes the on-line monitoring function of the physical quantitys such as electrical equipments SF6 gas density is, micro- water such as breaker, GIS, and can
Flexibly setting alarm threshold, enquiry of historical data, accurate to analyze and determine equipment gas leakage trend and leak rate on the spot, and discovery is set in advance
Standby there are abnormal conditions, to ensure the safe operation of electrical equipment and substation's whole system, really realizes substation, especially
It is the on-line monitoring of the electrical equipment of unattended station.Equipping rules: system should be built using bus type layered distribution type structure,
Meet the three-layer architecture requirement of intelligent substation: process layer (sensor layer), wall (data transmission, acquisition process
Layer), station level (monitoring host, database server etc.), total system uses IEC61850 standard power communication protocol.From the background
Monitor terminal is responsible for the collecting of monitoring data, the forwarding of comprehensive analysis, fault diagnosis, storage and standardized data, has number in real time
According to functions such as displaying, analysis of trend, the inquiry of historical data, Real-time Alarms.It can be realized by the system without to now
Can gas density to high voltage electric equipment, micro- water monitor on-line, gas density relay can be verified online and examined
It surveys, can be mentioned by analysis expert software by big data analysis by trend analysis for the repair based on condition of component of SF6 electrical equipment
For solid foundation, meet the needs of grid automation and equipment state overhauling, the safe operation and fortune to network system is improved
Row management level carries out expected diagnosis and trend analysis, reduces and plays an important role without scheduled outage maintenance.
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and
Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and
Modification, all should be contained within the scope of the invention.
Claims (31)
1. a kind of gas density relay for monitoring gas micro water content on-line, it is characterised in that: including shell, and be set to institute
The intracorporal pedestal of shell, pressure detector, temperature compensating element, at least one signal generator and equipment jointing are stated, it is described
Pedestal is connected with the pressure detector, and the gas density relay passes through the equipment jointing and electrical equipment phase
Connection；The gas density relay further includes micro- water sensor, pressure regulating mechanism and intelligence control unit；
The pressure regulating mechanism, gas circuit are connected by the pedestal with the pressure detector, and the pressure adjusts machine
Structure is configured as adjusting the pressure lifting of the gas circuit of the gas density relay, realizes gas flowing；
Micro- water sensor is connected in gas circuit with the pressure regulating mechanism, for monitoring the micro- water number of gas on-line；
The intelligence control unit is connected with micro- water sensor, receives the micro- water number of gas of micro- water sensor acquisition, and
By the micro- water number teletransmission of the gas to corresponding detection system or target device.
2. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, it is characterised in that:
The intelligence control unit is also connected with the pressure regulating mechanism, for completing the control of the pressure regulating mechanism, realizes gas
Body flowing.
3. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, it is characterised in that:
The signal generator includes microswitch or magnetic-type electrical contact, and the gas density relay passes through the signal generator
Output contact signal, the contact point signal include alarm, and/or locking；
The pressure detector includes Baden pipe or bellows；
The temperature compensating element is using temperature-compensating plate or the gas of shell inner sealing.
4. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, it is characterised in that:
Micro- water sensor also acquires pressure signal, temperature signal and/or gas density signal；And/or teletransmission pressure signal, temperature
Spend signal and/or gas density signal.
5. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, it is characterised in that:
The gas density relay further includes density measure sensor, and the density measure sensor is examined in gas circuit with the pressure
It surveys device to be connected, is used for collecting data information；The density measure sensor is also connected with the intelligence control unit, the intelligence control
Unit receives and/or calculates the data information of density measure sensor acquisition, and by the data information teletransmission to corresponding
Detection system or target device；Wherein, the data information includes density value and/or pressure value, temperature value.
6. a kind of gas density relay for monitoring gas micro water content on-line according to claim 5, it is characterised in that:
The density measure sensor includes pressure sensor and temperature sensor；Alternatively, using by pressure sensor and temperature sensing
The gas density transmitter of device composition；Alternatively, using the density measure sensor of quartz tuning-fork technology.
7. a kind of gas density relay for monitoring gas micro water content on-line according to claim 6, it is characterised in that:
The gas density relay further includes insulating part, and the pressure sensor is connected by insulating part with pressure sensor fixing seat
It connects；Alternatively, the pressure sensor is fixed in pressure sensor fixing seat by insulating part sealing.
8. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, it is characterised in that:
Micro- water sensor is by the direct teletransmission of the micro- water number of the gas of acquisition；Alternatively, the intelligence control unit further includes communication module, it is described
Intelligence control unit by the communication module by the micro- water number teletransmission of the gas to corresponding detection system or target device, it is described logical
The communication modes for interrogating module are wire communication or wireless communication mode.
9. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, it is characterised in that:
The intelligence control unit embeds algorithm and control program based on the embedded system of microprocessor, automatically controls entire monitoring process,
Include all peripheral hardwares, logic and input and output.
10. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay further includes the display interface for human-computer interaction, the current data of real-time display, and/or branch
Hold data input.
11. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the intelligence control unit is equipped with electric interfaces, and the electric interfaces are led for completing test data storage and/or test data
Out and/or test data prints, and/or carries out data communication, and/or input analog quantity, digital information with host computer.
12. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: clock is additionally provided on the intelligence control unit, the clock is used for recording test time.
13. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the control of the intelligence control unit is by field control, and/or passes through Background control.
14. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay further includes indication mechanism, and the indication mechanism includes machine core, pointer, dial, the machine core
It is fixed in the shell；One end of the temperature compensating element also pass through connecting rod connect with the machine core or directly with the machine
Core connection；The pointer is installed on the machine core and is set to before the dial, and the pointer is aobvious in conjunction with the dial
Show gas density value；And/or
The indication mechanism includes the digital device or liquid crystal device that there is indicating value to show.
15. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay further includes multiple-pass joint, and the pressure regulating mechanism is arranged on the multiple-pass joint；With/
Or micro- water sensor is arranged on the multiple-pass joint.
16. a kind of gas density relay for monitoring gas micro water content on-line according to claim 15, feature exist
In: the gas density relay further includes Self-sealing valve, and the Self-sealing valve is arranged on the multiple-pass joint.
17. a kind of gas density relay for monitoring gas micro water content on-line according to claim 16, feature exist
In: the gas density relay further includes tonifying Qi interface, and the tonifying Qi interface is arranged on the pressure regulating mechanism；Or
Person, the tonifying Qi interface are arranged on the electrical equipment；Alternatively, the tonifying Qi interface is arranged on the multiple-pass joint；Or
Person, the tonifying Qi interface are arranged on the Self-sealing valve.
18. a kind of gas density relay for monitoring gas micro water content on-line according to claim 15, feature exist
In: the main air passage between multiple-pass joint connection electrical equipment and pressure regulating mechanism is arranged in the probe of micro- water sensor
On.
19. a kind of gas density relay for monitoring gas micro water content on-line according to claim 15, feature exist
In: the pressure regulating mechanism further includes capillary, and the capillary is set to pressure regulating mechanism blow vent and multiple-pass joint
Between gas circuit, the pressure regulating mechanism is connected in gas circuit by capillary with multiple-pass joint.
20. a kind of gas density relay for monitoring gas micro water content on-line according to claim 15, feature exist
In: it further include thermal insulator, the thermal insulator is arranged between pressure regulating mechanism and multiple-pass joint.
21. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: micro- water sensor and intelligence control unit are set together, and are integrated；Alternatively, micro- water sensor and intelligence control
The intelligence that unit is integrated declines water sensor.
22. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the pressure regulating mechanism is sealed in a cavity or shell.
23. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the pressure regulating mechanism is a sealed gas chamber, utilizes the gas and electricity because of variation of ambient temperature, made in the sealed gas chamber
There are the temperature difference between gas in gas equipment, and then realize gas flowing；Alternatively,
The pressure regulating mechanism is a sealed gas chamber, and the outside or inside of the sealed gas chamber is equipped with heating element, and/or system
Cold element leads to the gas in the sealed gas chamber by heating the heating element, and/or freezing by the cooling module
The temperature change of body, and then realize gas flowing；Alternatively,
The pressure regulating mechanism is cavity open at one end, and the other end of the cavity is connected by pedestal with pressure detector
It is logical；There is piston in the cavity, one end of the piston is connected with an adjusting rod, and the outer end of the adjusting rod connects driving portion
Part, the other end of the piston protrude into the opening, and in sealing contact with the inner wall of the cavity, the driving part driving
The adjusting rod drives the piston to move in the cavity in turn；Alternatively,
The pressure regulating mechanism is a sealed gas chamber, and the inside of the sealed gas chamber is equipped with piston, the piston with it is described close
Hold one's breath room inner wall it is in sealing contact, the outside of the sealed gas chamber is equipped with driving part, and the driving part is pushed by electromagnetism
The piston is moved to move in the cavity；Alternatively,
The pressure regulating mechanism is the air bag that one end connects driving part, and the air bag is issued in the driving of the driving part
Raw volume change, the air bag are connected by connection pedestal with the pressure detector；Alternatively,
The pressure regulating mechanism is bellows, and one end of the bellows is connected by connecting pedestal with the pressure detector
Logical, the other end of the bellows stretches under the driving of driving part；Alternatively,
The pressure regulating mechanism is a vent valve, and the vent valve is arranged in a closed gas chamber or the vent valve
It is connect with a closed gas chamber；Alternatively,
The pressure regulating mechanism is a compressor；Alternatively,
The pressure regulating mechanism is a pump, and the pump including but not limited to makes press pump, booster pump, electric air pump, Electromagnetic air pump
One of；
Wherein, the driving part includes but is not limited to magnetic force, motor, reciprocating mechanism, Carnot cycle mechanism, pneumatic member
One of part.
24. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the pressure regulating mechanism and pressure detector are integrated.
25. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
It further include the power supply for power supply in: the gas density relay, the power supply includes power supply circuit or battery,
Perhaps perhaps perhaps mutual inductor takes electric obtained power supply or induction power supply to solar energy to recyclable rechargeable battery.
26. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay further includes the decomposition product sensor for monitoring gas decomposition product on-line, and the decomposition product passes
Sensor is connected with the intelligence control unit.
27. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay further includes the camera for monitoring.
28. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay further includes the shielding part that shielding action can be played to electric field, and/or magnetic field.
29. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay is equipped with abnormal timely bulletin, and the timely bulletin of exception includes broken string bulletin, short-circuit alarming announcement
Show, sensor degradation bulletin, gas pressure have one or more of raising trend bulletin.
30. a kind of gas density relay for monitoring gas micro water content on-line according to claim 1, feature exist
In: the gas density relay is additionally provided with the temperature protective device to electronic component, for guaranteeing electronic component low
Reliably working under temperature or the environment temperature of high temperature；
The temperature protective device includes heater and/or radiator, the heater when temperature is lower than setting value, in temperature
Radiator is opened when higher than setting value.
31. a kind of monitoring system, it is characterised in that: the monitoring system is existed by the described in any item one kind of claims 1 to 30
The gas density relay that line monitors gas micro water content is constituted；Alternatively, the monitoring system includes that claims 1 to 30 is any
A kind of gas density relay of on-line monitoring gas micro water content described in.
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| CN201910830221.4A CN110429005A (en) | 2019-09-04 | 2019-09-04 | A kind of gas density relay and monitoring system of on-line monitoring gas micro water content |
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