CN110491723A - A kind of gas density relay and monitoring system with contact state monitoring - Google Patents
A kind of gas density relay and monitoring system with contact state monitoring Download PDFInfo
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- CN110491723A CN110491723A CN201910830222.9A CN201910830222A CN110491723A CN 110491723 A CN110491723 A CN 110491723A CN 201910830222 A CN201910830222 A CN 201910830222A CN 110491723 A CN110491723 A CN 110491723A
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Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
-
- 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
-
- 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
- H01H35/28—Compensation for variation of ambient pressure or temperature
-
- 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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- Testing And Monitoring For Control Systems (AREA)
Abstract
This application provides a kind of gas density relays with contact state monitoring, including intelligent processor, contact state monitoring unit and communication module；Contact state monitoring unit is connected with the contact of gas density relay or is directly connected with signal generator, for monitoring the contact state of gas density relay；Intelligent processor is connected with contact state monitoring unit, communication module respectively, for receiving the contact state information of contact state monitoring unit transmission, and passes through communication module for contact state information remote transmitting to corresponding detection system or target device.The application realizes the monitoring to the contact state of gas density relay by contact state monitoring unit, it solves while be monitored to the gas density of electrical equipment, complete the on-line testing to gas density relay, improve efficiency, operation expense is reduced, has ensured the safe operation 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, have contact
The gas density relay and monitoring system of status monitoring.
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 transmitter, uploads, and realizes gas
Volume density on-line monitoring.SF6 gas density is relay is core and critical component.But due to the ring of high voltage substation scene operation
Border is severe, and especially electromagnetic interference is very strong, in gas density monitoring system (device) used at present, telemetering type SF6 gas
Volume density relay is made of mechanical density monitor and electronic long-distance transmission part；In addition, using gas density transmitter
Network system in, all also retain traditional mechanical density monitor.The mechanical density monitor has one group, two groups or three
Group mechanical contact reaches the state of alarm, locking or superpressure in pressure, information is connected circuit by contact in time and is transmitted to mesh
Marking device terminal guarantees equipment safety operation.Monitoring system is also equipped with safe and reliable circuit transmitting function simultaneously, real to realize
When data remote data read with information monitoring establish active platform, the information such as pressure, temperature, density can be transmitted in time
It realizes and monitors on-line to target device (such as computer terminal).
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, with contact state monitoring
Gas density relay and monitoring system, are monitored the gas density of the electrical equipment of gas-insulated or arc extinguishing for solving
While, it also completes that the on-line testing of gas density relay is improved efficiency, reduces operation expense, ensures power grid peace
Row for the national games.
To achieve the above object, the invention adopts the following technical scheme:
The application first aspect provides a kind of gas density relay with contact state monitoring.
The application the second aspect provides a kind of monitoring system, described monitoring system one kind as described in first aspect
Gas density relay with contact state monitoring is constituted, or has contact state including one kind described in first aspect
The gas density relay of monitoring.
A kind of gas density relay with contact state monitoring described herein, including shell, and it is set to institute
The intracorporal pressure detector of shell, temperature compensating element, at least one signal generator and equipment jointing are stated, the gas is close
Degree relay is connected by the equipment jointing with electrical equipment；The gas density relay further include: at intelligence
Manage device, contact state monitoring unit and communication module；
The contact state monitoring unit, be connected with the contact of gas density relay or directly with signal generator phase
Connection, for monitoring the contact state of gas density relay；
The intelligent processor is connected with the contact state monitoring unit, the communication module respectively, for receiving
The contact state information that the contact state monitoring unit is sent, and it is by the communication module that the contact state information is remote
Reach corresponding detection system or target device；
Wherein, the contact state information includes action state, non-action status.
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, the gas density relay further includes density measure sensor, and the density measure sensor is in gas
Road is connected with the pressure detector, is used for collecting data information；The density measure sensor is also and at the intelligence
Reason device is connected, and the intelligent processor receives and/or calculate the data information of the density measure sensor acquisition, and passes through
The data information teletransmission is monitored system or target device to corresponding by the communication module；Wherein, the data packets
Include one or more of density value, 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 temperature-compensating member of the gas density relay is arranged at least one described temperature sensor
Part is nearby or setting is on temperature compensating element, or is integrated in the temperature compensating element.Preferably, at least one institute
State the one end of pressure detector close to temperature compensating element that the gas density relay is arranged in temperature sensor.
It is highly preferred that the gas density relay also monitors the density of gas in the electrical equipment communicated therewith on-line
Value and/or pressure value, temperature value realize the on-line monitoring to the gas density of electrical equipment.
Preferably, the contact state monitoring unit includes optocoupler or optocoupler and resistance.
Preferably, the contact state monitoring unit includes current sensor, and/or voltage sensor, and/or electric current inspection
Survey device, and/or voltage detector.
Preferably, the contact state monitoring unit includes current transformer and/voltage transformer.
Preferably, the contact state monitoring unit includes silicon-controlled or silicon-controlled and resistance, and/or MOS field-effect
Pipe, and/or triode, and/or diode.
Preferably, the contact state monitoring unit includes electromagnetic relay and/or electronic relay.
Preferably, the contact state monitoring unit includes switch, electric contact, optocoupler, silicon-controlled, DI, relay, MOS
Field-effect tube, triode, diode, MOS FET relay, solid-state relay, the time relay, power relay, electric current pass
Sensor (such as Hall current sensor, DC current sensor, AC current sensor), current transformer, voltage sensor are (such as
Hall voltage sensor, direct current voltage sensor, AC voltage sensor), voltage transformer, current detector, voltage detecting
One or more of device, resistance.
Preferably, the gas density relay further includes micro- water sensor, at micro- water sensor and the intelligence
Reason device is connected, for monitoring the micro- water number of gas on-line.
It is highly preferred that the gas density relay further includes gas circulation mechanism, the gas circulation mechanism with it is described
Intelligent processor is connected, and the gas circulation mechanism includes capillary, sealed chamber and heating element, by heating heating unit
Part realizes gas flowing, monitors the micro- water number of gas on-line.Preferably, micro- water sensor can be installed on the gas and follow
In the sealed chamber of ring mechanism, capillary, capillary exit, extracapillary.
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 intelligent processor.
Preferably, the gas density relay further includes valve, pressure regulating mechanism；Wherein, the pressure regulating mechanism
Gas circuit be connected with the pressure detector；One end of the valve connects the equipment jointing, the other end of the valve
It is connected with the pressure detector, alternatively, gas circuit of the other end of the valve by the connection pressure regulating mechanism, by institute
Valve is stated to be connected with the pressure detector；The valve, the pressure regulating mechanism are connected with the intelligent processor respectively.
Specifically, the gas density relay closes valve by intelligent processor, so that gas density relay is in gas
Road separates with electrical equipment；By pressure regulating mechanism regulating gas pressure lifting, so that gas density relay connects
Point movement, the contact point signal that generates is by being transmitted to intelligent processor in contact state monitoring unit when contact acts, at intelligence
Density value when reason device 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.
Preferably, the gas density relay further includes the shielding that shielding action can be played to electric field, and/or magnetic field
Part, the shielding part are set in the shell or outside shell；Alternatively, the shielding part be set on the intelligent processor,
And/or on the communication module.
Preferably, the intelligent processor embeds algorithm and control program based on the embedded system of microprocessor, automatically
Entire checking procedure is controlled, includes all peripheral hardwares, logic and input and output.
It is highly preferred that the intelligent processor 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 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 communication modes of the communication module are wire communication or wireless communication mode.
It is highly preferred that 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.
It is highly preferred that 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 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 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 further includes analysis system (for example, technocracy analysis system), to gas
Density value monitoring, the electric property of gas density relay, monitoring element are tested and analyzed, are determined.
Preferably, the gas density relay further includes contact resistance detection unit, the contact resistance detection unit
It is connected with the contact of gas density relay or is directly connected with signal generator, for is connect to gas density relay
The contact resistance of point is detected, or detection and judgement.
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.
Preferably, the gas density relay includes but is not limited to the gas density relay of bimetallic strip compensation, gas
The gas density relay of gas density relay, bimetal leaf and gas compensation mixed type that body compensates；Entirely mechanical gas
Volume density relay, numeric type gas density relay, machinery and digital mating type gas density relay；Band pointer is shown
Gas density relay, digital display gas density relay, without display or instruction gas density switch；SF6 gas is close
Spend relay, SF6 mixed gas density monitor, N2 gas density relay.
Compared with prior art, technical solution of the present invention has the advantages that
1) a kind of gas density relay with contact state monitoring, including intelligent processor, contact state prison are provided
Survey unit and communication module；The contact state monitoring unit is connected or directly and signal with the contact of gas density relay
Generator is connected, for monitoring the contact state of gas density relay；The intelligent processor respectively with the contact shape
State monitoring unit, the communication module are connected, the contact state information sent for receiving the contact state monitoring unit,
And by the communication module by the contact state information remote transmitting to corresponding detection system or target device.The application passes through
Contact state monitoring unit realizes the monitoring to the contact state of gas density relay, solves the gas to electrical equipment
While density is monitored, complete to improve efficiency to the on-line testing of gas density relay, reduce operation and maintenance at
This, has ensured the safe operation of power grid.
2) a kind of monitoring system containing above-mentioned gas density monitor 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 the structural schematic diagram of the gas density relay with contact state monitoring of embodiment one；
Fig. 2 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment two；
Fig. 3 is the control circuit schematic diagram of the gas density relay with contact state monitoring of embodiment three；
Fig. 4 is the structural schematic diagram of the gas density relay with contact state monitoring of example IV；
Fig. 5 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment five；
Fig. 6 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment six；
Fig. 7 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment seven；
Fig. 8 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment eight；
Fig. 9 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment nine；
Figure 10 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment ten；
Figure 11 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment 11；
Figure 12 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment 12；
Figure 13 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment 13；
Figure 14 is a kind of control circuit schematic diagram of embodiment 14；
Figure 15 is a kind of control circuit schematic diagram of embodiment 15；
Figure 16 is a kind of control circuit schematic diagram of embodiment 16；
Figure 17 is a kind of control circuit schematic diagram of embodiment 17；
Figure 18 is a kind of control circuit schematic diagram of embodiment 18；
Figure 19 is a kind of control circuit schematic diagram of embodiment 19；
Figure 20 is a kind of control circuit schematic diagram of embodiment 20；
Figure 21 is a kind of 4-20mA type density transmitter circuit diagram on gas density relay；
Figure 22 is the structural schematic diagram of the gas density relay with contact state monitoring of embodiment 22；
Figure 23 is a kind of configuration diagram of monitoring system of embodiment 23；
Figure 24 is a kind of configuration diagram of monitoring system of embodiment 24；
Figure 25 is a kind of configuration diagram of monitoring system of embodiment 25.
Specific embodiment
The present invention provide it is a kind of with contact state monitoring gas density relay and monitoring system, it is of the invention to make
Purpose, technical solution and effect are clearer, clear, referring to the drawings and give an actual example that the present invention is described in more detail.
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 high, the middle voltage electrical equipment of the embodiment of the present invention one, the gas density relay with contact state monitoring
The structural schematic diagram of device.As shown in Figure 1, a kind of gas density relay 1 with contact state monitoring, including shell 101, with
And pedestal 102, end seat 108, pressure detector 103, temperature compensating element 104, several signals hair in the shell 101
Raw device 109, machine core 105, pointer 106, dial 107 and equipment jointing 1010.The gas density relay 1 passes through institute
It states equipment jointing 1010 to be connected with electrical equipment, one end of the pressure detector 103 is fixed on the pedestal 102
And it is in communication, the other end of the pressure detector 103 passes through the end seat 108 and the one of the temperature compensating element 104
End is connected, and the other end of the temperature compensating element 104 is equipped with crossbeam, and the crossbeam, which is equipped with, pushes the signal generator
109, make the contact of the signal generator 109 or the regulating part of disconnection.The machine core 105 is fixed on the pedestal 102
On；The other end of the temperature compensating element 104 also pass through connecting rod connect with the machine core 105 or directly with the machine core 105
Connection；The pointer 106 is installed on 105 core of machine and is set to before the dial 107, and the pointer 106 combines institute
It states dial 107 and shows gas density value.The gas density relay 1 can also include the digital device that there is indicating value to show
Or liquid crystal device.
The gas density relay 1 further include: pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5,
Contact state monitoring unit 6 and intelligent processor 7.One end of the valve 4 is connected with equipment jointing 1010, the valve 4
The other end be connected with pedestal 102；The pressure sensor 2 is connected in gas circuit with pressure detector 103；The pressure
Regulating mechanism 5 is connected with pressure detector 103；The valve 4 is connected with intelligent processor 7；The pressure regulating mechanism 5 with
Intelligent processor 7 is connected；The contact state monitoring unit 6 is connected with signal generator 109 and intelligent processor 7 respectively
It connects, it is for monitoring the contact state of gas density relay 1, the contact state information monitored is (including action state, non-dynamic
Make state) it is sent to intelligent processor 7.
Wherein, one end of pressure detector 103 and one end of temperature compensating element 104 are both secured in end seat 108, pressure
The other end of detector 103 is connected on pedestal 102, and the other end of temperature compensating element 104 passes through display connecting rod and machine core 105
The other end of connection or temperature compensating element 104 is directly connect with machine core 105, and pointer 106 is installed on machine core 105 and is set to
Before dial 107.The signal generator 109 can use microswitch or magnetic-type electrical contact, pass through signal generator
The contact point signal of 109 output gas density monitors.The pressure detector 103 can use Baden pipe or bellows.Temperature
Compensating element, 104 can be using compensating plate or the gas of shell inner sealing.Gas density relay of the invention can also include:
Oil-filled type density monitor, without oil type density monitor, air density meter, gas density switch or gas gauge.
In the present embodiment, based on pressure detector 103 and using 104 pairs of temperature compensating element variation pressure and temperatures into
Row amendment, with the variation of reflection (sulfur hexafluoride) gas density.I.e. under the pressure effect of measured medium (sulfur hexafluoride) gas,
Because of the effect of temperature compensating element 104, when (sulfur hexafluoride) gas density value changes, the pressure of (sulfur hexafluoride) gas
Value also correspondingly changes, and forces the end of pressure detector 103 to generate corresponding flexible deformation displacement, by means of temperature-compensating member
Part 104 passes to machine core 105, and machine core 105 passes to pointer 106 again, then by tested sulfur hexafluoride gas density value in scale
It is indicated on disk 107, signal generator 109 is used as output alarm blocking contact.Gas density relay 1 can handle in this way
(sulfur hexafluoride) gas density value is shown.If gas leakage, sulfur hexafluoride gas density value is had dropped, pressure detector
103 generate corresponding reversed displacement, by temperature compensating element 104, pass to machine core 105, machine core 105 passes to pointer again
106, pointer 106 is just walked toward the small direction of indicating value, gas leakage degree is particularly shown on dial 107, and occur by signal
The output of device 109 (alarm locking) contact point signal, monitors and controls the sulfur hexafluoride gas density in the equipment such as electric switch, make electricity
The work of gas equipment safety.Valve 4 can be various, can use cut-out cock, such as ball valve, butterfly valve, gate valve, shut-off valve, cock
Valve, butterfly valve, needle valve, diaphragm valve etc..If it is ball valve, ball valve can be driven to turn off the switch equipment by rotating self-styled spool
Air passage, specifically can flexible design according to actual needs.Valve 4 be it is automatic, can also manually, semi-artificial verification.
Embodiment two:
Fig. 2 is a kind of structural schematic diagram of gas density relay with contact state monitoring.As shown in Figure 2, comprising:
Gas density relay 1, pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5, contact state monitoring unit 6,
Intelligent processor 7, multiple-pass joint 9 and tonifying Qi interface 10.The gas density relay 1, valve 4, pressure sensor 2, pressure tune
It saves mechanism 5 and tonifying Qi interface 10 is arranged on multiple-pass joint 9.Specifically, the air inlet of the valve 4 is equipped with and is connected with electrical equipment
Logical interface, air inlet are sealedly attached on electrical equipment, are connected with the gas chamber of electrical equipment, the gas outlet of the valve 4
It is connected by multiple-pass joint 9 with gas density relay 1；The pressure sensor 2 by multiple-pass joint 9 in gas circuit with gas
Volume density relay sheet 1 is connected；The pressure regulating mechanism 5 is connected by multiple-pass joint 9 with gas density relay 1；
Contact state monitoring unit 6 is connected with gas density relay 1 and intelligent processor 7 respectively；The valve 4, pressure sensor
2, temperature sensor 3 and pressure regulating mechanism 5 are connected with intelligent processor 7 respectively；The tonifying Qi interface 10 and the multi-pass
Connector 9 is connected.
Wherein, gas density relay 1, comprising: the gas of the gas density relay of bimetallic strip compensation, gas compensation
The gas density relay of density monitor or bimetal leaf and gas compensation mixed type；Entirely mechanical gas density after
Electric appliance, numeric type gas density relay, machinery and digital mating type gas density relay；Density monitor with instruction
The density monitor of liquid crystal display (density monitor of density monitor or digital-scroll technique that pointer is shown), without instruction
Density monitor (i.e. density switch)；SF6 gas density is relay, SF6 mixed gas density monitor, N2 gas density relay
Device, other gas density relays etc..
The type of pressure sensor 2: absolute pressure transducer, relative pressure sensor or absolute pressure transducer and phase
To pressure sensor, quantity can be with several.Pressure sensor form can be diffusion silicon pressure sensor, MEMS pressure sensing
Device, chip type pressure sensor, coil-induced pressure sensor (pressure measurement sensor that such as Baden pipe is attached to induction coil),
Resistance pressure transmitter (pressure measurement sensor that such as Baden pipe is attached to slide wire resistance), can be analog quantity pressure sensor,
It is also possible to digital quantity pressure sensor.Pressure acquisition is the various pressure elements such as pressure sensor, pressure transmitter, such as is expanded
Dissipate silicon formula, sapphire formula, piezoelectric type, strain chip (resistance-strain chip, ceramics strain chip).
Temperature sensor 3 may is that thermocouple, thermistor, semiconductor-type；It can be with contact and contactless；It can be with
For thermal resistance and thermocouple.In short, temperature acquisition can use the various temperature-sensing elements such as temperature sensor, temperature transmitter.
A variety of kinds of drive can be used in the control of valve 4, such as manually, electrically, surge, pneumatically, turbine, electromagnetic driven, electromagnetic liquid
Dynamic, electro-hydraulic dynamic, air-or liquid-operated, spur gear, umbrella tooth wheel drive etc.；It can be in the effect of pressure, temperature or other forms transducing signal
Under, it is acted by scheduled requirement, or do not depend on transducing signal and simply opened or closed, valve is by driving or certainly
Motivation structure goes up and down opening and closing element, slides, swing or rotary motion, to change the size of its flow area to realize its control
Function.The valve 4 can be automatic valve class, power drive valve class and hand-operated valve class by driving method.And automatic valve may include:
Electromagnetic drive, electromagnetism-hydraulic-driven, electro-hydraulic driving, turbine drives, commutating tooth wheel drive, umbrella tooth wheel drive, pneumatic actuation, liquid
Press driving, gas-hydraulic-driven, electric drive, motor (motor) driving.The valve 4 can be with automatic or manual, semi-automatic.School
The process of testing, which can be, to be automatically performed, and can also pass through the semi-automatic completion of hand fit.Valve 4 passes through Self-sealing valve, hand-operated valve or not
It dismantles valve and electrical equipment direct or indirect connection, integration or separates to connect.Valve 4 as needed, can with open type or often
Closed form can be one-way type or two-way type.In short, opening or closing gas circuit by electrically-controlled valve realization.And the side that electrically-controlled valve uses
Formula may is that solenoid valve, electric-controlled ball valve, motor-driven valve, electronically controlled proportional valve etc..
The pressure regulating mechanism 5 of the present embodiment is cavity open at one end, has piston 51, the piston 51 in the cavity
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, the other end of the piston 51 protrudes into the opening, and is in contact with the inner wall of the cavity, and the driving part 52 drives
It moves the adjusting rod and then the piston 51 is driven to move in the cavity.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.
The basic demand of the intelligent processor 7 or function are: control, pressure by the completion of intelligent processor 7 to valve 4
The control and signal acquisition of regulating mechanism 5.It realizes: when being able to detect that the contact point signal of gas density relay 1 acts
Pressure value and temperature value, pressure value P when being converted into corresponding 20 DEG C20(density value), can detect gas density after
The contact action value P of electric appliance 1D20, complete the verifying work of gas density relay 1.Alternatively, it is close to directly detect gas
Density value P when the contact point signal of degree relay 1 actsD20, complete the verifying work of gas density relay 1.
Certainly, intelligent processor 7 can also be realized: complete test data storage；And/or test data export；And/or it surveys
It is printable to try data；And/or data communication can be carried out with host computer；And/or analog quantity, digital information can be inputted.The intelligence
Energy processor 7 further includes communication module, realizes that remote transmitting test data and/or check results etc. are believed by communication module
Breath；When the rated pressure value output signal of the gas density relay 1, intelligent processor 7 acquires at that time close simultaneously
Angle value completes the rated pressure value verification of gas density relay 1.
Electrical equipment, including SF6 outlet openings equipment, SF6 mixed gas electrical equipment, environment-friendly type outlet openings equipment,
Or other insulating gas electrical equipments.Specifically, electrical equipment includes GIS, GIL, PASS, breaker, current transformer, voltage
Mutual inductor, transformer, gas-filling cabinet, ring network cabinet etc..
Gas density relay 1 has pressure, temperature measurement and software scaling function.It is transported safely not influencing electrical equipment
Under the premise of row, can on-line checking go out alarm and/or the locking contact action value and/or return value of gas density relay 1.
Certainly the return value of alarm and/locking contact point signal can also be according to requiring not needing to test.
Embodiment three:
Fig. 3 is a kind of control circuit schematic diagram of gas density relay with contact state monitoring.As shown in figure 3,
The contact state monitoring unit 6 of the present embodiment is equipped with protection circuit, including the first connection circuit and the second connection circuit, and described the
The contact and contact point signal control loop of gas density relay 1 described in one connection circuit connection, the second connection circuit connect
The contact and the intelligent processor 7 for connecing the gas density relay 1, under non-verification state, the second connection circuit
It disconnects, the first connection closing of circuit；Under verification state, the contact state monitoring unit 6 cuts off first connection
Circuit is connected to the second connection circuit, the contact of the gas density relay 1 is connected with the intelligent processor 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 1JOn；It is also possible that the first relay J1 and the second relay J2 are integrated, i.e.,
For the relay with normally-open normally-close contact.Under non-verification state, the normally closed contact J11 and J12 closure are described normally opened to connect
Point J21 and J22 is disconnected, contact P described in the gas density relay real-time monitoringJOutput state；Under verification state, institute
State normally closed contact J11 and J12 disconnection, the normal opened contact J21 and J22 closure, the contact P of the gas density relay 1JIt is logical
The normal opened contact J21 and J22 is crossed to be connected with the intelligent processor 7.
The intelligent processor 7 is mainly made of processor 71 (U1), power supply 72 (U2).Processor 71 (U1) can be
General purpose 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
Program power supply, solar energy, battery, rechargeable battery, battery etc..The pressure sensor 2 of pressure acquisition P may is that pressure sensing
The various pressure elements such as device, pressure transmitter.The temperature sensor 3 of temperature acquisition T may is that temperature sensor, temperature pick-up
The various temperature-sensing elements such as device.Valve 4 may is that solenoid valve, motor-driven valve, pneumatic operated valve, ball valve, needle-valve, regulating valve, pipe valve etc. can be opened
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 electricity
Dynamic regulating piston, motorized adjustment cylinder, booster pump, gas cylinder pressurization and valve, solenoid valve, flow controller etc..It is automanual to go back
It can be the pressure regulating mechanism manually adjusted.
The working principle of the present embodiment one is as follows:
Intelligent processor 7 monitors the gas pressure P and temperature of electrical equipment according to pressure sensor 2, temperature sensor 3
T obtains corresponding 20 DEG C of pressure value Ps20(i.e. gas density value).When needing check-up gas density electrical relay 1, at this time if gas
Volume density value P20The safety check density value P of >=settingS, intelligent processor 7 controls the closing of the valve 4, so that gas density
Relay 1 separates in gas circuit with electrical equipment.
Then, the control of intelligent processor 7 disconnects the contact point signal control loop of gas density relay 1, i.e. contact state
The normally closed contact J11 and J12 of first relay J1 of monitoring unit 6 is disconnected, so that when on-line testing gas density relay 1 not
It will affect the safe operation of electrical equipment, will not accidentally send out alarm signal or lock-in control circuit in verification.Because opening
Begin to have carried out gas density value P before verification20The safety check density value P of >=settingSMonitoring and judgement, electrical equipment
Gas be in operational envelope, moreover gas leakage is a slow process, when verification is safe.Meanwhile contact
The normal opened contact J21 and J22 of second relay J2 of Condition Monitoring Unit 6 is closed, at this time the contact P of gas density relay 1J
Just it is connected by the normal opened contact J21 and J22 of the second relay J2 with intelligent processor 7.
Then, the driving part 52 that intelligent processor 7 controls pressure regulating mechanism 5 (can mainly use motor (motor)
Realized with gear, 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 device 1 gradually declines, so that contact point signal movement occurs for gas density relay 1, contact point signal movement is logical
The the second relay J2 for crossing contact state monitoring unit 6 uploads to intelligent processor 7, and intelligent processor 7 is dynamic according to contact point signal
As when the pressure value P and temperature T value that measure, pressure value P when becoming 20 DEG C corresponding by weight of gas characteristic20(density value),
It can detect the contact action value P of gas density relayD20.Alarm and/or locking letter to gas density relay 1
Number contact point signal action value all detected after, then by intelligent processor 7 control pressure regulating mechanism 5 motor (horse
Reach or variable-frequency motor), adjust pressure regulating mechanism 5, gradually rise the pressure of the gas of gas density relay 1, test is arrived
The return value of the alarm of gas density relay 1 and/locking contact point signal.It verifies repeatedly repeatedly (such as 2~3 times), so
After calculate its average value, 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 contact state monitoring unit 6 is disconnected, at this time
The contact P of gas density relay 1JJust pass through the contact normally opened J21 and J22 and intelligent processor 7 of the second relay J2 of disconnection
It is not connected with.7 control valve 4 of intelligent processor is opened, so that gas density relay 1 is connected in gas circuit with electrical equipment.
Then, normally closed contact J11 and the J12 closure of the first relay J1 of contact state monitoring unit 6, gas density relay 1
Contact point signal control loop works normally, and the gas density of gas density relay security monitoring electrical equipment makes electrical equipment
Safe and reliable work.Thus facilitate the on-line testing work for completing gas density relay, while will not influence electrical equipment
Safe operation.
After gas density relay 1 completes verifying work, gas density relay is just determined, can be examined with bulletin
Survey result.Mode is flexible, specifically can be with: 1) gas density relay can bulletin on the spot, such as pass through indicator light, number
Or the display such as 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) or
Abnormal results are uploaded by alarm signal line or dedicated signal lines；6) it individually uploads, or bundlees and upload with other signals.Always
It, if any exception, can issue report after gas density relay completes the on-line testing work of gas density relay 1 automatically
It is alert, distal end can be uploaded to, or can be sent on specified receiver, such as be sent to mobile phone.Alternatively, completing verifying work
Afterwards, if any exception, intelligent processor 7 can be uploaded by the alarm contact point signal of gas density relay 1 distal end (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 knot
Fruit is uploaded by alarm signal line.It can be uploaded with certain rule, such as when exception, be connect at alarm contact one in parallel
Point, regularly open and close, can obtain situation by parsing；Or it is uploaded by independent checking signal line.Specifically may be used
It is uploaded well or problematic upload, or check results is uploaded by individual checking signal line, or by showing on the spot with state
Show, alarm on the spot, or by wirelessly uploading, networks and upload with smart phone.Its communication mode be it is wired or wireless, it is wired logical
News mode 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-IOT built in sensor are logical
It interrogates module (such as NB-IOT).In short, the reliability of gas density relay can be fully ensured that with multiple form, multiple combinations
Energy.
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 1, and issues bulletin signal.For example, being set when detecting that gas density value is less than
Value PSWhen, just no longer verify；Only as gas density value >=(alarm pressure value+0.02MPa), on-line testing just can be carried out.
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 1 at different temperature, and the different periods carries out
The comparison of its error performance.That is different times, the comparison in same temperature ranges stated determine gas density relay 1, electrical equipment
Performance, with the comparison in history each period, history and present comparison.
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 1 at any time.
When gas density relay completes the verification of gas density relay, it can carry out being compared judgement automatically, if
Error differs greatly, and will issue abnormal prompt: gas density relay or pressure sensor, temperature sensor are problematic.That is gas
Volume density relay can complete the mutual of gas density relay and pressure sensor, temperature sensor or density transmitter
There is verifying function artificial intelligence to proofread ability；After completing verifying work, verification report can be automatically generated, if any exception, energy
Enough automatic issue are alarmed, or are sent on specified receiver, such as be sent to mobile phone；Scene show on the spot gas density value with
Check results, or show that gas density value and check results, concrete mode can be flexible by backstage；With real-time online gas
The functions such as the data such as density value, pressure value, temperature value show, analysis of trend, the inquiry of historical data, Real-time Alarm；It can be with
Monitor gas density value or gas density value, pressure value, temperature value on-line；With self-diagnostic function, can be accused in time to abnormal
Show, such as the bulletins such as broken string, short-circuit alarming, sensor degradation；It can be according to gas density relay at different temperature, no
The same period carries out the comparison of its error performance.That is different times, the comparison in same temperature ranges stated, determine gas density after
The performance of electric appliance.Comparison, history and present comparison with history each period.Can gas to electrical equipment itself it is close
Angle value, gas density relay 1, pressure sensor 2, temperature sensor 3 carry out normal and abnormal judgement and analysis, compare；
Also contain analysis system (technocracy analysis system), the monitoring of gas density value, gas density relay, monitoring element are carried out
It tests and analyzes, determine, it is known where is problem；Also the contact point signal state of gas density relay 1 is monitored, and handle
Its state implements teletransmission.It can be to disconnect or be closed in the contact point signal state for being known that gas density relay 1 from the background
, so that more one layer of monitoring, improves reliability；Detection can also be can be carried out to the temperature compensating of gas density relay 1, or
Detection and judgement；Can also the contact contact resistance to gas density relay 1 detect, or detection and determine；With number
According to analysis, data processing function, corresponding fault diagnosis and prediction can be carried out to electrical equipment.
As long as the mutual test data of pressure sensor 2, temperature sensor 3, gas density relay 1 is identical
, it is normal, so that it may illustrate gas density relay be it is normal, can thus not have to check-up gas density electrical relay,
Also other devices are not verified, can exempts to verify with the life-cycle.Unless the pressure of some electrical equipment passes in substation
The mutual test data of sensor 2, temperature sensor 3, gas density relay 1 be misfit, it is abnormal, just arrange dimension
The personnel of repairing go to handle.And in the case of coincideing, normal, there is no need to be verified, so, substantially increase reliable
Property, it greatly improves the efficiency, reduces costs.
Example IV:
As shown in figure 4, (gas density relay 1 mainly also wraps the gas density relay 1 with contact state monitoring
It includes: shell, and the pedestal, pressure detector, temperature compensating element, machine core, pointer, the dial, end that are disposed in the housing
Seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure adjusting
Mechanism 5, contact state monitoring unit 6 and intelligent processor 7.
The air inlet of the valve 4 is sealedly attached on electrical equipment by electrical equipment jointing 1010, the valve 4
Gas outlet is connected with the pedestal of gas density relay 1 and pressure detector.The pressure sensor 2, temperature sensor 3,
Contact state monitoring unit 6, intelligent processor 7 are arranged on the shell of gas density relay 1 or in shell, pressure sensor
2 are connected in gas circuit with the pressure detector of gas density relay 1；Pressure regulating mechanism 5 and gas density relay 1
Pressure detector is connected；Contact state monitoring unit 6 and intelligent processor 7 are set together.The pressure sensor 2, temperature
Degree sensor 3, the valve 4, the pressure regulating mechanism 5 are connected with intelligent processor 7 respectively.
Pressure is adjusted by the pressure regulating mechanism 5, so that the signal generator of gas density relay 1 occurs contact and moves
Make, contact movement is transmitted to intelligent processor 7 by contact state monitoring unit 6, and intelligent processor 7 is according to gas density relay
Gas density value when contact movement occurs for device 1, or is converted into corresponding gas density value according to pressure value and temperature value,
It detects the alarm of gas density relay and/or is latched contact point signal action value and/or return value, complete gas density relay
The verifying work of device.As long as contact action value is alarmed and/or is latched in detection, completes the verification of gas density relay
Work.
Embodiment five:
As shown in figure 5, the present embodiment increases tonifying Qi interface 10 and Self-sealing valve 11 compared with example IV.The Self-sealing valve 11
One end is sealedly attached on electrical equipment, and the other end of the Self-sealing valve 11 passes through air inlet, the tonifying Qi interface of connecting tube and valve 4
10 are connected.
Embodiment six:
As shown in fig. 6, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
Include: shell, and be disposed in the housing pedestal, pressure detector, temperature compensating element, machine core, pointer, dial,
End seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure tune
Save mechanism 5, contact state monitoring unit 6 and intelligent processor 7.The air inlet of the valve 4 is close by electrical equipment jointing
Envelope is connected on electrical equipment, the gas outlet of the valve 4 and pedestal, pressure sensor 2, the pressure tune of gas density relay 1
Section mechanism 5 is connected.The pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5 are arranged in gas density relay
On rear side of the shell of device 1.Contact state monitoring unit 6 and intelligent processor 7 are arranged on electrical equipment jointing.Pressure sensing
Device 2 passes through the pedestal of gas density relay 1, is connected in gas circuit with pressure detector；Pressure regulating mechanism 5 and gas are close
The pressure detector of degree relay 1 is connected.The pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5 are distinguished
It is connected with intelligent processor 7.What is different from the first embodiment is that the pressure sensor 2, temperature sensor 3, valve 4, pressure tune
Section mechanism 5 is arranged on rear side of the shell of gas density relay 1.
Embodiment seven:
As shown in fig. 7, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
Include: shell, and be disposed in the housing pedestal, pressure detector, temperature compensating element, machine core, pointer, dial,
End seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure tune
Save mechanism 5, contact state monitoring unit 6 and intelligent processor 7.The air inlet of the valve 4 is close by electrical equipment jointing
Envelope is connected on electrical equipment, and the gas outlet of the valve 4 is connected to connecting tube, the pressure of connecting tube and gas density relay 1
Detector is connected, and the pressure sensor 2, pressure regulating mechanism 5 are also connected with connecting tube, so that the valve 4,
Pressure sensor 2, pressure regulating mechanism 5, pressure detector are connected in gas circuit.The gas density relay 1, pressure pass
Sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5, contact state monitoring unit 6 and intelligent processor 7 are arranged at one
In shell；Contact state monitoring unit 6 and intelligent processor 7 are set together.The pressure sensor 2, temperature sensor 3 are straight
It connects or is connected indirectly with intelligent processor 7；The valve 4, the pressure regulating mechanism 5 are connected with intelligent processor 7 respectively.
Embodiment eight:
As shown in figure 8, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
Include: shell, and be disposed in the housing pedestal, pressure detector, temperature compensating element, machine core, pointer, dial,
End seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure tune
Save mechanism 5, contact state monitoring unit 6, intelligent processor 7.The air inlet of the valve 4 is sealed by electrical equipment jointing
It is connected on electrical equipment, the gas outlet of the valve 4 is connected with the pressure detector of gas density relay 1.The gas
Density monitor 1, temperature sensor 3, contact state monitoring unit 6 and intelligent processor 7 are set together.Pressure sensor 2
It is connected in gas circuit with the pressure detector of gas density relay 1；Pressure regulating mechanism 5 in gas circuit with gas density after
The pressure detector of electric appliance 1 is connected.The pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5 respectively with intelligence
Energy processor 7 is connected.
Distinguishing with embodiment two to be, the pressure regulating mechanism 5 of the present embodiment is mainly by 52 groups of air bag 53, driving part
At.Pressure regulating mechanism 5 is according to the control of intelligent processor 7, so that driving part 52 pushes air bag 53 that volume change occurs, into
And complete the lifting of pressure.
Embodiment nine:
As shown in figure 9, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
Include: shell, and be disposed in the housing pedestal, pressure detector, temperature compensating element, machine core, pointer, dial,
End seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure tune
Save mechanism 5, contact state monitoring unit 6, intelligent processor 7, multiple-pass joint 9.The air inlet of the valve 4 is sealedly attached to equipment
On jointing, the gas outlet of the valve 4 is connected with multiple-pass joint 9.Gas density relay 1 is mounted on multiple-pass joint 9；Institute
It states pressure sensor 2 to be mounted on multiple-pass joint 9, pressure detecting of the pressure sensor 2 in gas circuit with gas density relay 1
Device is connected；The pressure regulating mechanism 5 is mounted on multiple-pass joint 9, pressure regulating mechanism 5 and gas density relay 1
Pressure detector is connected；Temperature sensor 3, contact state monitoring unit 6 and intelligent processor 7 are set together, and setting exists
On multiple-pass joint 9；The pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5 respectively with 7 phase of intelligent processor
Connection.
Distinguishing with embodiment two to be: the pressure regulating mechanism 5 of the present embodiment is mainly by bellows 54, driving part 52
Composition.Bellows 54 and the pressure detector of gas density relay 1 are sealed connected together, and form a reliable seal chamber
Body.Pressure regulating mechanism 5 is according to the control of intelligent processor 7, so that driving part 52 pushes bellows 54 that volume change occurs,
And then volume change occurs for seal cavity, to complete the lifting of pressure.Pressure is adjusted by the pressure regulating mechanism 5, so that
Contact movement occurs for gas density relay 1, and contact movement is transmitted to intelligent processor 7, intelligence by contact state monitoring unit 6
Pressure value and temperature value when energy processor 7 is acted according to the contact of gas density relay 1, are converted into corresponding density
Value detects the alarm of gas density relay 1 and/or is latched contact action value and/or return value, completes gas density relay
The verifying work of device 1.
Embodiment ten:
As shown in Figure 10, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
It also include: shell, and the pedestal, pressure detector, temperature compensating element, machine core, pointer, the scale that are disposed in the housing
Disk, end seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure
Power regulating mechanism 5, contact state monitoring unit 6, intelligent processor 7.The air inlet of the valve 4 passes through electrical equipment jointing
It is sealedly attached on electrical equipment, the gas outlet of the valve 4 is connected with the pressure detector of gas density relay 1.It is described
Pressure sensor 2, temperature sensor 3 be arranged on gas density relay 1, pressure sensor 2 in gas circuit with gas density
The pressure detector of relay 1 is connected.The pressure regulating mechanism 5 is connected with the pressure detector of gas density relay 1
It is logical.The pressure sensor 2, temperature sensor 3, the valve 4, the pressure regulating mechanism 5 are connected with intelligent processor 7 respectively
It connects.
Distinguishing with embodiment two to be, the valve 4 is sealed in inside first shell 41, and the control cable of valve 4 passes through
It draws wire seal 42 with first shell 41 seals first to draw, design in this way ensures that valve 4 keeps sealing, can be reliably and with long-term
Work.The pressure regulating mechanism 5 is sealed in inside second shell 55, and the control cable of pressure regulating mechanism 5 is by with
The second of two shells 55 sealing draws wire seal 56 and draws, and design in this way ensures that pressure regulating mechanism 5 keeps sealing, Neng Gouchang
Phase reliably working.Second shell 55 and first shell 41 can also be combined into one, being integrally formed.
Embodiment 11:
As shown in figure 11, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
It also include: shell, and the pedestal, pressure detector, temperature compensating element, machine core, pointer, the scale that are disposed in the housing
Disk, end seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure
Power regulating mechanism 5, contact state monitoring unit 6, intelligent processor 7.The air inlet of the valve 4 passes through electrical equipment jointing
It is sealedly attached on electrical equipment, the gas outlet of the valve 4 is connected with pressure regulating mechanism 5, and the setting of pressure sensor 2 is being pressed
On power regulating mechanism 5.The temperature sensor 3, contact state monitoring unit 6, intelligent processor 7, gas density relay 1 are set
It sets on pressure regulating mechanism 5.Pressure detector, pressure sensor 2, pressure regulating mechanism 5 and the valve of gas density relay 1
4 are connected in gas circuit.The temperature sensor 3, contact state monitoring unit 6, intelligent processor 7 are set together.It is described
Pressure sensor 2, temperature sensor 3, the valve 4, the pressure regulating mechanism 5 are connected with intelligent processor 7 respectively.
Embodiment 12:
As shown in figure 12, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
It also include: shell, and the pedestal, pressure detector, temperature compensating element, machine core, pointer, the scale that are disposed in the housing
Disk, end seat, several signal generators and electrical equipment jointing) it include: first pressure sensor 21, second pressure sensor
22, the first temperature sensor 31, second temperature sensor 32, valve 4, pressure regulating mechanism 5, contact state monitoring unit 6, intelligence
Processor 7.The air inlet of the valve 4 is sealedly attached on electrical equipment by electrical equipment jointing, the outlet of the valve 4
Mouth is connected with pressure regulating mechanism 5.Gas density relay 1, the first temperature sensor 31, contact state monitoring unit 6, intelligence
Energy processor 7 is set together, and is arranged on pressure regulating mechanism 5；The setting of first pressure sensor 21 adjusts machine in pressure
On structure 5.The side that valve 4 is connected with electrical connection connector is arranged in second pressure sensor 22, second temperature sensor 32.The
One pressure sensor 21, gas density relay 1 pressure detector be connected in gas circuit with pressure regulating mechanism 5；It is described
First pressure sensor 21, second pressure sensor 22, the first temperature sensor 31, second temperature sensor 32 and Intelligent treatment
Device 7 is connected；The valve 4, the pressure regulating mechanism 5 are connected with intelligent processor 7 respectively.
Unlike embodiment two, there are two the pressure sensors, is that first pressure sensor 21, second is pressed respectively
Force snesor 22；There are two the temperature sensors, is the first temperature sensor 31, second temperature sensor 32 respectively.This
Second temperature sensor 32 can also be saved in embodiment.The present embodiment has several pressure sensors and temperature sensor,
It can be compared between the pressure value that multiple pressure sensor monitorings obtain, mutually verify；What multiple temperature sensors obtained
It can be compared between temperature value, mutually verify；The correspondence that multiple pressure sensors and multiple temperature sensors monitor
Multiple gas density values between can be compared, mutually verify.
Embodiment 13:
As shown in figure 13, (gas density relay 1 is main for a kind of gas density relay 1 with contact state monitoring
It also include: shell, and the pedestal, pressure detector, temperature compensating element, machine core, pointer, the scale that are disposed in the housing
Disk, end seat, several signal generators and electrical equipment jointing) it include: pressure sensor 2, temperature sensor 3, valve 4, pressure
Power regulating mechanism 5, contact state monitoring unit 6, intelligent processor 7, multiple-pass joint 9.The air inlet of the valve 4 is sealedly attached to
Electrical equipment it is upper, the gas outlet of the valve 4 is connected with multiple-pass joint 9.The valve 4 is sealed in inside first shell 41, valve 4
Control cable by with first shell 41 seal first draw wire seal 42 draw, in this way design ensure valve 4 holding
Sealing, can work reliably and with long-term.Gas density relay 1 is mounted on multiple-pass joint 9；The pressure regulating mechanism 5 is installed
On multiple-pass joint 9.The pressure sensor 2, temperature sensor 3, contact state monitoring unit 6 and intelligent processor 7 are arranged
On gas density relay 1.Pressure sensor 2, gas density relay 1 are connected in gas circuit with pressure regulating mechanism 5.
The valve 4, the pressure regulating mechanism 5, the pressure sensor 2, temperature sensor 3 are connected with intelligent processor 7 respectively.
Unlike embodiment two: the pressure sensor 2, temperature sensor 3, contact state monitoring unit 6 and intelligence
Energy processor 7 is arranged on gas density relay 1.The pressure regulating mechanism 5 of the present embodiment is mainly by gas chamber 57, heating element
58, heat preservation member 59 forms.(can also be internal) has heating element 58 to 57 outside of gas chamber, by heating, leads to the variation of temperature,
And then complete the lifting of pressure.Pressure is adjusted by the pressure regulating mechanism 5, so that gas density relay 1 occurs contact and moves
Make, contact movement is transmitted to intelligent processor 7 by contact state monitoring unit 6, and intelligent processor 7 is according to gas density relay
Pressure value and temperature value when the contact movement of device 1, are converted into corresponding density value, detect the report of gas density relay
Alert and/or locking contact action value and/or return value, complete the verifying work to gas density relay.
The present embodiment working principle is as follows: when needing to verify density monitor, intelligent processor 7 controls pressure and adjusts machine
The heating element 58 of structure 5 is heated, when the temperature value T510 in pressure regulating mechanism 5 is with the temperature value T's of temperature sensor 3
After the temperature difference reaches setting value, valve 4 can be closed by intelligent processor 7, so that gas density relay is in gas circuit and electrically
Equipment partition；Immediately followed by the heating element 58 of shutdown regulating mechanism 5, heating element 58 is heated in stopping, and pressure is adjusted
The pressure of the gas of the closed gas chamber 57 of mechanism 5 just gradually declines, so that alarm and/or locking occur for gas density relay 1
Contact acts respectively, and contact movement is transmitted to intelligent processor 7,7 basis of intelligent processor by contact state monitoring unit 6
Density value when alarm and/or locking contact movement detects alarm and/or the locking contact action value of gas density relay
And/or return value, complete the verifying work to gas density relay.
Embodiment 14:
As shown in figure 14, the contact state monitoring unit 6 of the present embodiment includes a photoelectrical coupler OC1 and resistance R1, institute
Stating photoelectrical coupler OC1 includes a light emitting diode and a phototriode；The anode of the light emitting diode and the gas
The contact P of density monitor 1JSeries connection forms closed circuit；The emitter of the phototriode is grounded；The photosensitive triode
The output end out6 connection intelligent processor 7 of the collector as contact state monitoring unit 6, the phototriode
Collector also passes through the resistance R1 and is controlled to a power supply.
By foregoing circuit, the contact P for knowing gas density relay 1 can be convenientJIt is to disconnect (non-action status) also
It is closure (action state).Specifically, as the contact PJWhen closure, closed circuit is powered, the lumination of light emitting diode, light
The phototriode is connected, the collector of the phototriode exports low level；As the contact PJWhen disconnection, closure
Circuit is disconnected, and the light emitting diode does not shine, the phototriode cut-off, the collector output of the phototriode
High level.In this way, the output end out6 by contact state monitoring unit 6 exports low and high level.
Intelligent processor 7 is isolated with contact point signal control loop by the method for Phototube Coupling in the present embodiment, is verifying
Contact P is closed in the processJ, or contact P in the case where gas leakage occursJAlso it can close, at this point, detecting photosensitive three pole
The low level of the collector output of pipe.It controls and closes contact P in checking procedureJTime in a preset length, from rather than leak
In the case of gas, contact P in checking procedureJThe length of closed state duration is low electricity that is determining, being received by monitoring
The flat duration can judge whether it is generation contact P in checking procedureJIt closes.Therefore, record can be passed through in verification
Time, alarm signal when judge the sending of gas density relay 1 is verification, rather than alarm signal when gas leakage.
In the present embodiment, intelligent processor 7 is mainly made of processor 71 (U1), power supply 72 (U2).
Embodiment 15:
As shown in figure 15, the contact state monitoring unit 6 of the present embodiment includes the first photoelectrical coupler OC1 and the second photoelectricity
Coupler OC2.
The light emitting diode of the light emitting diode of the first photoelectrical coupler OC1 and the second photoelectrical coupler OC2
Respectively by current-limiting resistance parallel connection, connect to form closed circuit with the contact of the gas density relay after in parallel, and described
The connection of the light emitting diode of first photoelectrical coupler OC1 and the second photoelectrical coupler OC2 is contrary；First light
The collector of the phototriode of electric coupler OC1 and the collector of the phototriode of the second photoelectrical coupler OC2 are equal
It is controlled to a power supply by divider resistance, the emitter and described second of the phototriode of the first photoelectrical coupler OC1
The emitter of the phototriode of photoelectrical coupler OC2 connects to form output end out6, output end out6 and it is described intelligence at
Reason device 7 is connected, and is grounded by a resistance R5.
By foregoing circuit, the contact P for knowing gas density relay 1 can be convenientJIt is to disconnect (non-action status) also
It is closure (action state).Specifically, as the contact PJWhen closure, closed circuit is powered, the first photoelectrical coupler OC1
Conducting, the second photoelectrical coupler OC2 cut-off, the emitter of the phototriode of the first photoelectrical coupler OC1 are (i.e. defeated
Outlet out6) output high level；Alternatively, the first photoelectrical coupler OC1 cut-off, the second photoelectrical coupler OC2 conducting,
The emitter (i.e. output end out6) of the phototriode of the second photoelectrical coupler OC2 exports high level.When the contact
PJWhen disconnection, closed circuit is powered down, and the first photoelectrical coupler OC1, the second photoelectrical coupler OC2 are turned off, institute
State the emitter (i.e. output end out6) of the phototriode of the first photoelectrical coupler OC1 and the second photoelectrical coupler OC2
Export low level.
In an advantageous embodiment, the circuit further includes the first zener diode group and the second zener diode group,
The first zener diode group and the second zener diode group are connected in parallel in the contact point signal control loop, and described
The connection of first zener diode group and the second zener diode group is contrary；The first zener diode group and institute
State the second zener diode group by one, two or more zener diode it is in series.
In the present embodiment, the first zener diode group includes concatenated first zener diode D1 and the second pressure stabilizing two
Pole pipe D2, the cathode of the first zener diode D1 connect the anode of the second zener diode D2；Second pressure stabilizing
Diode group includes concatenated third zener diode D3 and the 4th zener diode D4, and the third zener diode D3 is just
Pole connects the cathode of the 4th zener diode D4.
Foregoing circuit can be convenient the contact P realized to gas density relay 1JState be monitored, in conjunction with intelligence
Processor 7, by contact PJIt is that off-state or closed state carry out respective handling, and implement teletransmission, is connect from being known that from the background
Point signal condition, substantially increases the reliability of power grid.
In the present embodiment, intelligent processor 7 is mainly made of processor 71 (U1), power supply 72 (U2).
Embodiment 16:
As shown in figure 16, the present embodiment and the difference of embodiment 15 are: intelligent processor 7 is mainly by processor 71
(U1), power supply 72 (U2), communication module 73 (U3), intelligent processor protection circuit 74 (U4), display and output 75 (U5), data
Store the composition such as 76 (U6).
Wherein, the communication modes of communication module 73 (U3) can be wired, such as RS232, RS485, CAN-BUS industry are total
Line, fiber optic Ethernet, 4-20mA, Hart, IIC, SPI, Wire, coaxial cable, PLC power carrier etc.；It is either wireless, such as
2G/3G/4G/5G etc., WIFI, bluetooth, Lora, Lorawan, Zigbee, infrared, ultrasonic wave, sound wave, satellite, light wave, quantum are logical
Letter, sonar etc..Intelligent processor protection circuit 74 (U4) can be antistatic interference circuit (such as ESD, EMI), anti-surge circuit,
Electric fast protection circuit, anti-radiofrequency field interference circuit, anti-impulse train interfere circuit, power supply short-circuit protective circuit, the reversed guarantor of power supply
Protection circuit, electric contact misconnection protection circuit, charge protector etc..These intelligent processors protect circuit can be a kind of or
Several flexible combination forms.Display and 75 (U5) of output can be charactron, LED, LCD, HMI, display, matrix panel, beat
Print machine, fax, projector, mobile phone etc. can form for a kind of or several flexible combination.Data store 76 (U6) and can be
The flash cards such as FLASH, RAM, ROM, hard disk, SD, tape, punch tape, CD, USB flash disk, disk, film etc., can for it is a kind of,
Or several flexible combination forms.
Embodiment 17:
As shown in figure 17, the contact state monitoring unit 6 of the present embodiment includes the first Hall current sensor H1 and second
Hall current sensor H2, the first Hall current sensor H1, the second Hall current sensor H2 and the gas
The contact P of density monitorJSeries connection forms closed circuit, and the contact P of the gas density relay 1JIt is connected to described first
Between Hall current sensor H1 and the second Hall current sensor H2；The output of the first Hall current sensor H1
End is connected with the intelligent processor 7 with the output end of the second Hall current sensor H2.
By foregoing circuit, the contact P for knowing gas density relay 1 can be convenientJIt is to disconnect (non-action status) also
It is closure (action state).Specifically, as the contact PJWhen closure, closed circuit is powered, the first Hall current sensing
Electric current is flowed through between device H1 and the second Hall current sensor H2, generates induced potential；As the contact PJWhen disconnection, close
It closes circuit to be powered down, no current stream between the first Hall current sensor H1 and the second Hall current sensor H2
It crosses, the induced potential of generation is zero.
In the present embodiment, intelligent processor 7 is mainly by processor 71 (U1), power supply 72 (U2), communication module 73 (U3), intelligence
75 (U5) of energy processor protection circuit 74 (U4), display and output, data store 76 (U6) etc. and form.
Embodiment 18:
As shown in figure 18, the contact state monitoring unit 6 of the present embodiment includes that the first controllable silicon SCR 1, second is silicon-controlled
SCR2, third controllable silicon SCR 3 and the 4th controllable silicon SCR 4.
First controllable silicon SCR 1 and third controllable silicon SCR 3 are connected, the second controllable silicon SCR 2 and the series connection of the 4th controllable silicon SCR 4
The series circuit constituted afterwards with the first controllable silicon SCR 1, third controllable silicon SCR 3 forms series-parallel closed circuit；The gas is close
Spend the contact P of relay 1JOne end pass through route between route and first controllable silicon SCR 1, third controllable silicon SCR 3
Electrical connection, the other end are electrically connected by the route between route and second controllable silicon SCR 2, the 4th controllable silicon SCR 4.Here
Described is series-parallel as shown in fig. 6, being the circuit of above-mentioned component Hybrid connections parallel with one another, concatenated.
Specifically, the cathode of the first controllable silicon SCR 1 and the cathode of the second controllable silicon SCR 2 connect to form the contact state
The output end of monitoring unit 6 is connected with intelligent processor 7；The anode of first controllable silicon SCR 1 and the yin of third controllable silicon SCR 3
Pole is connected；The anode of second controllable silicon SCR 2 is connected with the cathode of the 4th controllable silicon SCR 4；The sun of third controllable silicon SCR 3
The anode of pole and the 4th controllable silicon SCR 4 is connected with the input terminal of the contact state monitoring unit 6.Wherein, first is silicon-controlled
SCR1, the second controllable silicon SCR 2, the control electrode of third controllable silicon SCR 3 and the 4th controllable silicon SCR 4 with the intelligent processor 7
It is connected.The intelligent processor 7 can control corresponding silicon-controlled on-off.
The course of work of the present embodiment is as follows:
When without verification, when normal operation, the contact PJIt disconnects, triggering third controllable silicon SCR 3 and the 4th is silicon-controlled
SCR4, third controllable silicon SCR 3 and the 4th controllable silicon SCR 4 are in the conductive state, and contact point signal control loop is in running order.
And do not trigger the first controllable silicon SCR 1 and the second controllable silicon SCR 2 at this time, the yin of the first controllable silicon SCR 1 and the second controllable silicon SCR 2
Pole Non voltage output is in obstructed state.
When being verified, third controllable silicon SCR 3 and the 4th controllable silicon SCR 4 are not triggered, and it is silicon-controlled to trigger first
SCR1 and the second controllable silicon SCR 2.At this point, third controllable silicon SCR 3, the 4th controllable silicon SCR 4 are in an off state, contact PJWith
The partition of contact point signal control loop.And the first controllable silicon SCR 1, the second controllable silicon SCR 2 are in the conductive state, the contact PJWith
The contact state monitoring unit 6 is connected to, and is connected with intelligent processor 7.
Contact state monitoring unit 6 can also be flexibly made of solid-state relay or electromagnetic relay and silicon-controlled mixing.
In the present embodiment, intelligent processor 7 is mainly by processor 71 (U1), power supply 72 (U2), communication module 73 (U3), intelligence
75 (U5) of energy processor protection circuit 74 (U4), display and output, data store 76 (U6) etc. and form.
Embodiment 19:
As shown in figure 19, intelligent processor 7 is mainly by processor 71 (U1), power supply 72 (U2), communication module 73 (U3), intelligence
The composition such as energy processor protection circuit 74 (U4), display and output and 75 (U5) of operation, 76 (U6) of data storage.Processor 71
(U1) contain crystal oscillator and filter circuit.It includes surge protection circuit, filter circuit, short circuit that intelligent processor, which protects circuit 74 (U4),
Protect circuit, polar protective circuit, overvoltage crowbar etc..Power supply has 2 grades, further includes voltage reduction module.
Wherein, the communication modes of communication module 73 (U3) can be wired: such as RS232, RS485, CAN-BUS industry is total
Line, fiber optic Ethernet, 4-20mA, Hart, IIC, SPI, Wire, coaxial cable, PLC power carrier etc.；It is either wireless: such as
2G/3G/4G/5G etc., WIFI, bluetooth, Lora, Lorawan, Zigbee, infrared, ultrasonic wave, sound wave, satellite, light wave, quantum are logical
Letter, sonar etc..Display and 75 (U5) of output may is that charactron, LED, LCD, HMI, display, matrix panel, printer, biography
Very, projector, mobile phone etc., can a kind of or several flexible combination form.Data store 76 (U6) may is that FLASH,
The flash cards such as RAM, ROM, hard disk, SD, tape, punch tape, CD, USB flash disk, disk, film etc., can be a kind of or several
Flexible combination forms.
Embodiment 20:
As shown in figure 20, intelligent processor 7 is mainly by processor 71 (U1), power supply 72 (U2), communication module 73 (U3), intelligence
The composition such as energy processor protection circuit 74 (U4).Processor 71 (U1) contains crystal oscillator and filter circuit.Intelligent processor protection electricity
Road 74 (U4) includes surge protection circuit, filter circuit, short-circuit protection circuit, polar protective circuit, overvoltage crowbar etc..Electricity
Source has 2 grades, further includes voltage reduction module.Pressure sensor 2 passes through overvoltage crowbar, operational amplification circuit, to after modulation circuit,
Using filter circuit to processor 71 (U1).In communication module 73 (U3), by communication chip by surge protection circuit to lead to
Communication interface.
Embodiment 21:
Figure 21 is a kind of 4-20mA type density transmitter circuit diagram on gas density relay.As shown in figure 21,
4-20Ma type density transmitter mainly by microprocessor (containing master controller, crystal oscillator and filter circuit), power supply, modulation circuit,
Electric current loop, protection circuit, analog pressure sensor, operational amplifier, temperature sensor, ratio modulation module, voltage reduction module etc.
Composition.Microprocessor contains crystal oscillator and filter circuit.Protection circuit includes surge protection circuit, filter circuit, short-circuit protection electricity
Road, polar protective circuit, overvoltage crowbar etc..Analog pressure sensor passes through overvoltage crowbar, operational amplification circuit, arrives
After modulation circuit, using filter circuit to microprocessor, such microprocessor can collect pressure value, and collect
Temperature value obtains density value signal after microprocessor calculates conversion.Density value signal is by ratio modulation module, modulation
Circuit, electric current loop obtain the density value of 4-20Ma.
In short, analog pressure sensor, temperature sensor, micro- water sensor after amplifying circuit, are converted to A/D, are arrived
MCU realizes pressure, temperature, moisture content acquisition.Intelligent processor 7 can contain or connect printer, liquid crystal display, can be with
Realize USB storage, RS232 communication.
Embodiment 22:
Figure 22 is a kind of structure of gas density relay with contact state monitoring of the embodiment of the present application 22
Schematic diagram.As shown in figure 22, gas density relay 1 (mainly also include: shell, and be disposed in the housing pedestal, pressure
Force detector, temperature compensating element, machine core, pointer, dial, end seat, several signal generators and electrical equipment jointing)
It include: pressure sensor 2, temperature sensor 3, valve 4, pressure regulating mechanism 5, contact state monitoring unit 6, intelligent processor 7.
And intelligent processor 7 includes: processor 71 (U1), power supply 72 (U2), communication module 73 (U3), intelligent processor protection circuit 74
(U4), valve control 77 (U7), execution controller 78 (U8), man-machine interface 79 (U9), pressure regulating mechanism position detection part 511
Deng.Executing controller 78 (U8) may also be referred to as control system, can be set on intelligent processor 7；Or control system part
Device is arranged on pressure regulating mechanism 5, and the two close fit is fused together.
Embodiment 23:
Figure 23 is a kind of configuration diagram of monitoring system.As shown in figure 23, multiple high pressures equipped with sulfur hexafluoride air cell
Electrical equipment, multiple gas density relays pass sequentially through hub, IEC61850 protocol converter and background monitoring terminal
Connection.Wherein, each gas density relay is separately positioned on the high voltage electric equipment of corresponding sulfur hexafluoride air cell.This reality
It applies in example, background monitoring terminal PC passes through hub HUB0 and multiple hub HUB (HUB1, HUB2 ... HUBm) communication.Often
A one group of gas density relay of hub HUB connection, as hub HUB1 connection gas density relay Z11, Z12 ...
Z1n, hub HUB2 connection gas density relay Z21, Z22 ... Z2n ... ..., hub HUBm connection gas density after
Electric appliance 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 24:
Figure 24 is a kind of configuration diagram of monitoring system.The present embodiment increases the network switch compared with embodiment 23
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.Each one group of gas density relay of hub HUB connection,
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 25:
Figure 25 is a kind of configuration diagram of monitoring system.The present embodiment is the configuration diagram of wireless transmission method, figure
Middle dashed box indicates that wireless module Wn and gas density relay Zn can be made one or seperated, and 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 (Wireless Gateway) and each gas density relay and each gas density relay carry out nothing
Line communication.Wherein, n is natural number.
Other than verifying online to gas density relay, system can be with electrical equipments such as real-time monitoring breaker, GIS
Physical quantitys and its variation tendencies such as temperature, pressure, density, the micro- water of internal SF6 gas, and there is communication interface, it will be in data
Background monitoring terminal is passed to, realizes the on-line monitoring function of the physical quantitys such as electrical equipments SF6 gas density is, micro- water such as breaker, GIS
Can, and alarm threshold can be flexibly set, enquiry of historical data, accurate to analyze and determine equipment gas leakage trend and leak rate on the spot,
There are abnormal conditions in discovering device in advance, to ensure the safe operation of electrical equipment and substation's whole system, really realizes
The on-line monitoring of the electrical equipment of substation, especially unattended station.Equipping rules: system should use bus type layer distributed
Formula structure is built, and meet the three-layer architecture requirement of intelligent substation: (sensor layer has contact state prison to process layer
The gas density relay of survey), wall (data transmission, acquisition process layer), station level (monitoring host, database server
Deng), total system uses IEC61850 standard power communication protocol.Background monitoring terminal is responsible for collecting, integrating for monitoring data
Analysis, fault diagnosis, storage and standardized data forwarding, there is real time data displaying, analysis of trend, historical data to look into
The functions such as inquiry, Real-time Alarm.By the system can realize without to scene can gas density to high voltage electric equipment,
Micro- water is monitored on-line, can be verified and be detected to gas density relay online, can be by analysis expert software, by counting greatly
According to analysis, by trend analysis, solid foundation is provided for the repair based on condition of component of SF6 electrical equipment, meet grid automation and is set
Expected diagnosis and trend point are carried out in the needs of standby repair based on condition of component, safe operation and operation and management level to network system is improved
Analysis is reduced and is played an important role without scheduled outage maintenance.
The checking precision of gas density relay can be with associate power industry or national standard.At different temperatures, school
Testing requirement can be according to national standard or professional standard, such as according to DL/T 259 " sulfur hexafluoride gas density relay verification regulation "
In 4.8 temperature-compensating performances regulation, required precision corresponding to each temperature value, i.e. its error determine to require to be different
, it according to standard or can make separate stipulations.It can carry out the comparison of the different annual same periods (or same season), determine.Such as 2021
The check results in year May can be made directly relatively, trend is divided with the check results in May, 2019, the year two thousand twenty May
Analysis, is determined.Verification can progress when needing to verify, mobile design can also be carried out, it can in A substation
Work for a period of time, after completion task, can be moved to B work of transformer substation for a period of time, after completion task, move again to C change
Power station work.
It is 0.25 that the checking precision of the gas density relay with contact state monitoring of the application, which can achieve 20 degree,
Grade, 0.625 grade is reached in high temperature or low temperature, and checking precision meets the requirements, and economically, in metering meets the requirements or correlation is advised
Model.
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 (25)
1. a kind of gas density relay with contact state monitoring, including shell, and the pressure being disposed in the housing
Detector, temperature compensating element, at least one signal generator and equipment jointing, the gas density relay pass through institute
Equipment jointing is stated to be connected with electrical equipment；It is characterized by: the gas density relay further include: Intelligent treatment
Device, contact state monitoring unit and communication module；
The contact state monitoring unit, is connected with the contact of gas density relay or is directly connected with signal generator
It connects, for monitoring the contact state of gas density relay；
The intelligent processor is connected with the contact state monitoring unit, the communication module respectively, described for receiving
Contact state monitoring unit send contact state information, and by the communication module by the contact state information remote transmitting extremely
Corresponding detection system or target device；
Wherein, the contact state information includes action state, non-action status.
2. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: described
Signal generator includes microswitch or magnetic-type electrical contact, and the gas density relay is exported by the signal generator
Contact point signal, the contact point signal include alarm, and/or locking；The pressure detector includes Baden pipe or bellows；It is described
Temperature compensating element is using temperature-compensating plate or the gas of shell inner sealing.
3. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: described
Gas density relay further includes density measure sensor, the density measure sensor in gas circuit with the pressure detector
It is connected, is used for collecting data information；The density measure sensor is also connected with the intelligent processor, at the intelligence
Reason device receives and/or calculates the data information of the density measure sensor acquisition, and passes through the communication module for the number
According to information remote transmitting to corresponding monitoring system or target device；Wherein, the data information include density value and/or pressure value,
Temperature value.
4. a kind of gas density relay with contact state monitoring according to claim 3, it is characterised in that: described
Density measure sensor includes pressure sensor and temperature sensor；Alternatively, using by pressure sensor and temperature sensor group
At gas density transmitter；Alternatively, using the density measure sensor of quartz tuning-fork technology.
5. a kind of gas density relay with contact state monitoring according to claim 4, it is characterised in that: at least
There is the temperature sensor to be arranged near the temperature compensating element of the gas density relay or be arranged to mend in temperature
It repays on element, or is integrated in the temperature compensating element.Preferably, at least one temperature sensor is arranged in the gas
The pressure detector of density monitor is close to one end of the temperature compensating element.
6. a kind of gas density relay with contact state monitoring according to claim 3, it is characterised in that: described
Gas density relay also monitors the density value of gas and/or pressure value, temperature value in the electrical equipment communicated therewith on-line,
Realize the on-line monitoring to the gas density of electrical equipment.
7. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: described
Contact state monitoring unit includes optocoupler or optocoupler and resistance.
8. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: described
Contact state monitoring unit includes current sensor, and/or voltage sensor, and/or current detector, and/or voltage detecting
Device.
9. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: described
Contact state monitoring unit includes current transformer and/voltage transformer.
10. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
State contact state monitoring unit include silicon-controlled or silicon-controlled and resistance, and/or metal-oxide-semiconductor field effect transistor, and/or triode and/
Or diode.
11. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating contact state monitoring unit includes electromagnetic relay and/or electronic relay.
12. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating contact state monitoring unit includes switch, electric contact, optocoupler, silicon-controlled, DI, relay, metal-oxide-semiconductor field effect transistor, triode, two
Pole pipe, MOS FET relay, solid-state relay, the time relay, power relay, current sensor, current transformer, electricity
One or more of pressure sensor, voltage transformer, current detector, voltage detector, resistance.
13. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes micro- water sensor, and micro- water sensor is connected with the intelligent processor, is used for
Line monitors the micro- water number of gas.Preferably, the gas density relay further includes gas circulation mechanism, the gas circulation mechanism
It is connected with the intelligent processor, the gas circulation mechanism includes capillary, sealed chamber and heating element, passes through heating
Heating element realizes gas flowing, monitors the micro- water number of gas on-line.
14. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes the decomposition product sensor for monitoring gas decomposition product on-line, the decomposition product sensor with
The intelligent processor is connected.
15. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes valve, pressure regulating mechanism；Wherein, the gas circuit of the pressure regulating mechanism and the pressure are examined
Device is surveyed to be connected；One end of the valve connects the equipment jointing, the other end of the valve and the pressure detector phase
Connection, alternatively, gas circuit of the other end of the valve by the connection pressure regulating mechanism, by the valve and the pressure detecting
Device is connected；The valve, the pressure regulating mechanism are connected with the intelligent processor respectively.
16. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes the shielding part that shielding action can be played to electric field, and/or magnetic field, the shielding part setting
In in the shell or outside shell；Alternatively, the shielding part is set on the intelligent processor, and/or the communication module
On.
17. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
It states intelligent processor and algorithm and control program is embedded based on the embedded system of microprocessor, automatically control entire checking procedure,
Include all peripheral hardwares, logic and input and output.Preferably, the intelligent processor is based on general purpose computer, industrial personal computer, ARM core
The embedded algorithm such as piece, AI chip, CPU, MCU, FPGA, PLC etc., industrial control mainboard, embedded main control board and control program, it is automatic to control
Entire checking procedure is made, includes all peripheral hardwares, logic and input and output.
18. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes indication mechanism, and the indication mechanism includes machine core, pointer, dial, and the machine core is fixed
In the shell；One end of the temperature compensating element also passes through connecting rod and connect with the machine core or directly connect with the machine core
It connects；The pointer is installed on the machine core and is set to before the dial, and the pointer shows gas in conjunction with the dial
Volume density value；And/or
The indication mechanism includes the digital device or liquid crystal device that there is indicating value to show.
19. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
The communication modes for stating communication module are wire communication or wireless communication mode；
The wire communication mode include but is not limited to RS232 bus, RS485 bus, CAN-BUS bus, 4-20mA, Hart,
One or more of IIC, SPI, Wire, coaxial cable, PLC power carrier, cable；
The wireless communication mode include but is not limited to 5G/NB-IOT communication module built in sensor, 2G/3G/4G/5G,
WIFI, bluetooth, Lora, Lorawan, Zigbee, infrared, ultrasonic wave, sound wave, satellite, light wave, quantum communications, one in sonar
Kind is several.
20. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes the power supply for power supply, and the power supply includes power supply circuit or battery, Huo Zheke
Perhaps perhaps mutual inductor takes electric obtained power supply or induction power supply to solar energy to cycle charging battery.
21. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
It states gas density relay and is equipped with abnormal timely bulletin.
22. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes analysis system, electric property, monitoring to the monitoring of gas density value, gas density relay
Element is tested and analyzed, is determined.
23. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
Stating gas density relay further includes contact resistance detection unit, the contact resistance detection unit and gas density relay
Contact is connected or is directly connected with signal generator, and the contact resistance for the contact to gas density relay is examined
It surveys, or detection and judgement.
24. a kind of gas density relay with contact state monitoring according to claim 1, it is characterised in that: institute
It states gas density relay and is additionally provided with temperature protective device to electronic component, for guaranteeing electronic component in low temperature or height
Reliably working under the environment temperature of temperature；The temperature protective device includes heater and/or radiator, is lower than setting value in temperature
When heater, temperature be higher than setting value when open radiator.
25. a kind of monitoring system, it is characterised in that: the monitoring system is by a kind of described in any item tools of claim 1 to 24
The gas density relay for having contact state to monitor is constituted；Alternatively, the monitoring system includes any one of claim 1 to 24 institute
A kind of gas density relay with contact state monitoring stated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910830222.9A CN110491723A (en) | 2019-09-04 | 2019-09-04 | A kind of gas density relay and monitoring system with contact state monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910830222.9A CN110491723A (en) | 2019-09-04 | 2019-09-04 | A kind of gas density relay and monitoring system with contact state monitoring |
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| CN110491723A true CN110491723A (en) | 2019-11-22 |
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| CN201910830222.9A Pending CN110491723A (en) | 2019-09-04 | 2019-09-04 | A kind of gas density relay and monitoring system with contact state monitoring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443283A (en) * | 2020-04-29 | 2020-07-24 | 上海乐研电气有限公司 | Gas density relay online calibration device and online calibration method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986521Y (en) * | 2006-12-27 | 2007-12-05 | 郑州赛奥电子有限公司 | SF6 gas density relay check meter |
| CN201708085U (en) * | 2010-06-09 | 2011-01-12 | 朗松珂利(上海)仪器仪表有限公司 | SF6 gas density relay for remote monitor |
| CN204270972U (en) * | 2014-10-31 | 2015-04-15 | 国家电网公司 | The micro-water relay of a kind of telemetering type sulfur hexafluoride gas density |
| CN105374624A (en) * | 2015-11-26 | 2016-03-02 | 上海乐研电气科技有限公司 | Gas density relay equipped with external gas density level indicator |
| CN107799356A (en) * | 2017-11-29 | 2018-03-13 | 上海乐研电气有限公司 | A kind of electro connecting pressure gauge kept with contact action |
| CN107863270A (en) * | 2017-11-29 | 2018-03-30 | 上海乐研电气有限公司 | A kind of gas density relay and its installation method of middle part outlet |
| CN211045335U (en) * | 2019-09-04 | 2020-07-17 | 上海乐研电气有限公司 | Gas density relay with contact state monitoring function and monitoring system |
-
2019
- 2019-09-04 CN CN201910830222.9A patent/CN110491723A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986521Y (en) * | 2006-12-27 | 2007-12-05 | 郑州赛奥电子有限公司 | SF6 gas density relay check meter |
| CN201708085U (en) * | 2010-06-09 | 2011-01-12 | 朗松珂利(上海)仪器仪表有限公司 | SF6 gas density relay for remote monitor |
| CN204270972U (en) * | 2014-10-31 | 2015-04-15 | 国家电网公司 | The micro-water relay of a kind of telemetering type sulfur hexafluoride gas density |
| CN105374624A (en) * | 2015-11-26 | 2016-03-02 | 上海乐研电气科技有限公司 | Gas density relay equipped with external gas density level indicator |
| CN107799356A (en) * | 2017-11-29 | 2018-03-13 | 上海乐研电气有限公司 | A kind of electro connecting pressure gauge kept with contact action |
| CN107863270A (en) * | 2017-11-29 | 2018-03-30 | 上海乐研电气有限公司 | A kind of gas density relay and its installation method of middle part outlet |
| CN211045335U (en) * | 2019-09-04 | 2020-07-17 | 上海乐研电气有限公司 | Gas density relay with contact state monitoring function and monitoring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443283A (en) * | 2020-04-29 | 2020-07-24 | 上海乐研电气有限公司 | Gas density relay online calibration device and online calibration method thereof |
| WO2021218288A1 (en) * | 2020-04-29 | 2021-11-04 | 上海乐研电气有限公司 | Online checking apparatus for gas density relay and online checking method thereof |
| CN111443283B (en) * | 2020-04-29 | 2024-05-10 | 上海乐研电气有限公司 | Online verification device and online verification method for gas density relay |
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