CN107863268A - A kind of gas density relay superpressure signal realizes the method kept - Google Patents
A kind of gas density relay superpressure signal realizes the method kept Download PDFInfo
- Publication number
- CN107863268A CN107863268A CN201711223483.1A CN201711223483A CN107863268A CN 107863268 A CN107863268 A CN 107863268A CN 201711223483 A CN201711223483 A CN 201711223483A CN 107863268 A CN107863268 A CN 107863268A
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- China
- Prior art keywords
- microswitch
- magnetic
- resetting
- movement arm
- contact
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Classifications
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- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
Abstract
The method kept is realized the invention discloses a kind of gas density relay superpressure signal, or electro connecting pressure gauge, housing including density monitor (or electro connecting pressure gauge), the load cell being arranged in the housing, the signal contact of some electro connecting pressure gauges, movement, pointer, dial, joint, it is characterised in that：Gas density relay superpressure signal realizes that the method kept is, using the maintaining body after signalizing activity.Very big innovation is passed through, according to its method, has developed with maintaining body and resetting-mechanism, it is possible to achieve electrical equipment arcing overpressure alarm function., being capable of overpressure alarm during its hypertonia when electrical equipment arcing.And after electrical equipment arcing terminates, when its pressure is normal, its alarm signal is always maintained at, and operations staff can be allowed to find electrical equipment arcing phenomenon, the electrical equipment of timely processing arcing phenomenon, ensures electric power safety operation.
Description
Technical field
The present invention relates to technical field of electric power, and in particular to a kind of gas density relay superpressure signal realizes the side kept
Method, particularly a kind of gas density relay kept with contact action.Very big innovation is passed through, with maintaining body and again
Position mechanism, it is possible to achieve electrical equipment arcing overpressure alarm keeps function.I.e. when electrical equipment arcing, during its hypertonia,
Being capable of overpressure alarm.And after electrical equipment arcing terminates, when its pressure is normal, its alarm signal is always maintained at, and can allow fortune
Administrative staff has found electrical equipment arcing phenomenon, the electrical equipment of timely processing arcing phenomenon, ensures electric power safety operation.
Background technology
At present, for the lithium of the sulfur hexafluoride gas density in monitoring device, particularly sulfur hexafluoride electrical equipment
The load cell that the signaling gear (signal control portion) of sulphur gas density relay typically uses is Baden pipe, and contact is using micro-
Dynamic switch or magnetic-type electrical contact, are applied in electrical equipment,, can be with superpressure during its hypertonia when electrical equipment arcing
Alarm.And after electrical equipment arcing terminates, its pressure will reduce, and when returning to normal, at this moment its alarm signal will disappear
Lose, operations staff when not at the scene be not easy to find, it is difficult to ensure electric power safety run, so there is an urgent need to innovate.Need
With the maintaining body and resetting-mechanism after signalizing activity, it is possible to achieve electrical equipment arcing overpressure alarm keeps function.Work as electricity
, being capable of overpressure alarm during its hypertonia during gas equipment arcing.And after electrical equipment arcing terminates, and its alarm signal one
It is straight to keep, conveniently allow operations staff to find, ensure electric power safety operation.
The content of the invention
The present invention provides a kind of gas density relay superpressure signal and realizes that the method kept, or a kind of band contact act
The gas density relay of holding, function is kept for solving the electrical equipment arcing overpressure alarm of prior art.With holding
Mechanism and resetting-mechanism, it is possible to achieve electrical equipment arcing overpressure alarm keeps function.After electrical equipment arcing, its pressure mistake
Gao Shi, being capable of overpressure alarm.And its pressure it is normal when, its alarm signal is always maintained at, and is easy to allow operations staff to find, ensure electricity
Power safe operation.
A kind of gas density relay superpressure signal realizes the method kept, including the housing of electro connecting pressure gauge, setting
Signal contact, movement, pointer, dial, the joint of load cell, some electro connecting pressure gauges in the housing, in superpressure
Alarm signal is provided with a maintaining body, and before the pressure superpressure of equipment, its corresponding overpressure alarm signal does not act, then
The maintaining body does not work, and when gas pressure exception occurs for electrical equipment, during its hypertonia, superpressure report can be exported
Alert signal, after exporting overpressure alarm signal, and when electrical equipment gas pressure is normal, then the maintaining body works, its
Maintaining body is always maintained at the alarm signal, i.e., after the alarm signal acts, no matter pressure or density reduce or increase, protect
Holding mechanism can keep alarm signal to be in operating state, just can only can reset signal by resetting-mechanism.
Including the maintaining body and resetting-mechanism after signalizing activity.
The signal contact uses microswitch or magnetic-type electrical contact.
Temperature compensating element is also included, the density of gas can be monitored.
The microswitch includes movement arm.
The magnetic-type electrical contact includes action contact.
The maintaining body with need signal keep signal contact be correspondingly arranged, after the signalizing activity, no matter pressure
Or density reduces or increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism.
Described maintaining body is elastic component, when reaching the pressure or density of setting, promotes the dynamic of magnetic-type electrical contact
Make contact motion, the action contact of magnetic-type electrical contact is crossed elastic component, i.e., after the signalizing activity, no matter pressure or density
Reduce or increase, elastic component can keep the action contact of magnetic-type electrical contact to be in signalizing activity state.
Described maintaining body is elastic component, when reaching the pressure or density of setting, promotes the movement arm of microswitch
Motion, makes the movement arm of microswitch cross elastic component, i.e., after the signalizing activity, no matter pressure or density reduce or increase,
Elastic component can keep the movement arm of microswitch to be in signalizing activity state.
The maintaining body includes spring and holding element, when reaching the pressure or density of setting, promotes microswitch
Movement arm motion, make microswitch movement arm stretch or compression spring, the movement arm of microswitch is crossed holding element,
Holding element blocks the movement arm of microswitch, i.e., after the signalizing activity, no matter pressure or density reduce or increase, keep member
Part can keep the movement arm of microswitch to be in signalizing activity state；
Or when reaching the pressure or density of setting, promote the action contact of magnetic-type electrical contact to move, make magnetic auxiliary
The action contact stretching of electric contact or compression spring, make the action contact of magnetic-type electrical contact cross holding element, holding element
The action contact of magnetic-type electrical contact is blocked, i.e., after the signalizing activity, no matter pressure or density reduce or increase, holding element
The action contact of magnetic-type electrical contact can be kept to be in signalizing activity state.
After the signalizing activity, no matter pressure or density reduce or increase, elastic component can keep the action of microswitch
Arm or the action contact of magnetic-type electrical contact are in signalizing activity state, just can only can reset signal by resetting-mechanism.
By operating resetting-mechanism, resetting-mechanism is set to promote movement arm or magnetic auxiliary electricity of the maintaining body away from microswitch
The action contact of contact, the movement arm of microswitch or the action contact of magnetic-type electrical contact recover normal condition, answer signal
Position.
The resetting-mechanism is rotary motion, spinning reduction mechanism, makes resetting-mechanism promote maintaining body to be opened away from fine motion
The movement arm of pass or the action contact of magnetic-type electrical contact, the movement arm of microswitch or the action contact of magnetic-type electrical contact are extensive
Multiple normal condition, resets signal.
The resetting-mechanism is the rod member with lever, by rotation process handle, the rod member of spinning reduction mechanism, makes reset
The rod member of mechanism promotes the action contact of movement arm or magnetic-type electrical contact of the maintaining body away from microswitch, microswitch
Movement arm or the action contact of magnetic-type electrical contact recover normal condition, reset signal.
The resetting-mechanism is pressed or extracted resetting-mechanism horizontally or vertically to move, resetting-mechanism is promoted holding machine
The action contact of movement arm or magnetic-type electrical contact of the structure away from microswitch, the movement arm or magnetic-type electrical contact of microswitch
Action contact recover normal condition, reset signal.
The resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes resetting-mechanism
Element, make resetting-mechanism element promote movement arm or magnetic-type electrical contact of the maintaining body away from microswitch action touch
Head, the movement arm of microswitch or the action contact of magnetic-type electrical contact recover normal condition, reset signal.
The resetting-mechanism moves for vertical curve, presses or extract resetting-mechanism, resetting-mechanism is promoted maintaining body
Away from the movement arm of microswitch or the action contact of magnetic-type electrical contact, the movement arm of microswitch or magnetic-type electrical contact
Act contact and recover normal condition, reset signal.
The resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes resetting-mechanism
Element, make resetting-mechanism element promote movement arm or magnetic-type electrical contact of the maintaining body away from microswitch action touch
Head, the movement arm of microswitch or the action contact of magnetic-type electrical contact recover normal condition, reset signal.
The resetting-mechanism also includes reduction apparatus, and after operating resetting-mechanism, reduction apparatus can recover resetting-mechanism
Original state.
The reduction apparatus is flexible member, after operation resetting-mechanism terminates, the spring energy of the flexible member of reduction apparatus
Enough resetting-mechanism is set to restore to the original state.
The reduction apparatus contains spring, after operation resetting-mechanism terminates, the elastic force or pulling force energy of the spring of reduction apparatus
Enough resetting-mechanism is set to restore to the original state.
The load cell is Baden pipe, or bellows, or Baden pipe and bellows composition.
Described microswitch includes movement arm, and after the signalizing activity, maintaining body maintains movement arm, no matter pressure
Or density reduces or increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism；
Or the action contact of described magnetic-type electrical contact, after the signalizing activity, maintaining body maintains magnetic auxiliary
The action contact of electric contact, no matter pressure or density reduce or increase, maintaining body can keep signalizing activity state, Zhi Nengtong
Can just signal be resetted by crossing resetting-mechanism.
Described movement arm is elastic component, and when reaching the pressure or density of setting, regulating part promotes the dynamic of microswitch
Make arm motion, the movement arm of microswitch is crossed maintaining body, i.e., after the signalizing activity, no matter pressure or density reduce or
Increase, maintaining body can keep the movement arm of microswitch to be in signalizing activity state.
Resetting-mechanism is sealing with housing, and when operating resetting-mechanism, the sealed air chamber in housing is all the time in sealing
State.
The resetting-mechanism realizes sealing by sealing ring and housing.
The temperature compensating element is bimetal leaf or the compensating device filled with compensation gas.
Described maintaining body is magnetic element, when reaching the pressure or density of setting, promotes the action of microswitch
Arm or the motion of the action contact of magnetic-type electrical contact, are close to the movement arm of microswitch or the action contact of magnetic-type electrical contact
Magnetic element, i.e., after the signalizing activity, no matter pressure or density reduce or increase, magnetic element can keep microswitch
Movement arm or the action contact of magnetic-type electrical contact are in signalizing activity state.
The maintaining body contains magnetic element, when reaching the pressure or density of setting, promotes the action of microswitch
Arm or the motion of the action contact of magnetic-type electrical contact, cross the movement arm of microswitch or the action contact of magnetic-type electrical contact
Maintaining body, the movement arm of microswitch or the action contact proximate magnetic element of magnetic-type electrical contact, i.e., when the signalizing activity
Afterwards, no matter pressure or density reduce or increase, the magnetic element of maintaining body can more keep the movement arm or magnetic of microswitch
The action contact of formula electric contact is helped to be in signalizing activity state.
The present invention provides a kind of gas density relay superpressure signal and realizes that the method kept, or a kind of band contact act
The gas density relay of holding.Maximum innovative point is particularly, to have passed through very big innovation, had maintaining body and reset
Mechanism, it is possible to achieve electrical equipment arcing overpressure alarm keeps function.I.e. when electrical equipment arcing, during its hypertonia, energy
Enough overpressure alarms.And after electrical equipment arcing terminates, when its pressure is normal, its alarm signal is always maintained at, and can allow operation
Personnel have found electrical equipment arcing phenomenon, the electrical equipment of timely processing arcing phenomenon, ensure electric power safety operation.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing；The present invention provides a kind of gas density relay superpressure signal and realizes the method kept with a kind of gas with temperature-compensating
Illustrate and illustrate exemplified by volume density relay.
Fig. 1 is the not operating state description figure of signal of the sulfur hexafluoride gas density relay of the embodiment of the present invention；
Fig. 2 is the signalizing activity hold mode principle explanatory diagram of sulfur hexafluoride gas density relay of the embodiment of the present invention；
Fig. 3 is the signalizing activity reseting procedure principle explanatory diagram of sulfur hexafluoride gas density relay of the embodiment of the present invention；
Fig. 4 is a kind of partial cutaway schematic of sulfur hexafluoride gas density relay of the embodiment of the present invention；
Fig. 5 is the signalizing activity reseting procedure principle of the sulfur hexafluoride gas density relay of another embodiment of the present invention
Illustrate figure.
Embodiment：
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The method that a kind of gas density relay superpressure signal of present invention offer realizes holding, including electro connecting pressure gauge
Housing, the load cell being arranged in the housing, the signal contact of some electro connecting pressure gauges, movement, pointer, dial, connect
Head, it is characterised in that：Its method is exactly on gas density relay, is needed accordingly on overpressure alarm signal at it, increase
Maintaining body.Before the pressure superpressure of equipment, its corresponding overpressure alarm signal does not act, then the maintaining body does not act as
With.And when gas pressure exception occurs for electrical equipment, during its hypertonia, overpressure alarm signal can be exported.Export superpressure
After alarm signal, and when electrical equipment gas pressure is normal, then the maintaining body works, and its maintaining body makes the alarm
Signal is always maintained at, i.e., after the alarm signal acts, no matter pressure or density reduce or increase, maintaining body can keep reporting
Alert signal is in operating state, just can only can reset signal by resetting-mechanism.Operations staff can be so allowed to find electric
Unit exception phenomenon, the electrical equipment of timely processing anomaly, ensure electric power safety operation.
The present invention provides a kind of gas density relay superpressure signal and realizes the method that keeps with a kind of with temperature-compensating
Illustrate and illustrate exemplified by gas density relay.Referring specifically to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, Fig. 4 is the embodiment of the present invention one
Sulfur hexafluoride gas density relay partial cutaway schematic, as shown in figure 4, the embodiment of the present invention one discloses a kind of gas
Volume density relay, including：Housing 18, joint 3 and the signaling gear to link together and indicating value indication mechanism；
The bellows 1 of gas density and the microswitch as contact in detection electrical equipment are provided with the signaling gear
16；
The indicating value indication mechanism includes：Show Baden pipe 4, display end seat 5, movement 32, dial 31, pointer 33, aobvious
Show pedestal 7 and display observation window 30；One end of the display Baden pipe 4 is sealedly attached to the display end seat 5, the display bar
The other end for stepping on pipe 4 is connected on the display base 7, and the pointer 33 is installed on the movement 32.
Described signaling gear includes chassis 11, bellows 1, support 37, push rod 13, fixed mount 17, some microswitches
16th, some regulating parts 38, regulating part fixed plate 9, housing 18, wire outlet seat 39, one end sealing welding of bellows 1 is on chassis 11
On, on support 37, fixed mount 17 is fixed in chassis 11 or housing 18 other end sealing welding of bellows 1, and push rod 13 is solid
It is scheduled on support 37.Microswitch 16 is fixed on fixed mount 17 or chassis 11, and regulating part fixed plate 9 is fixed on push rod 13,
Some regulating parts 38 are fixed in regulating part fixed plate 9, and the sealing of wire outlet seat 39 is fixed on housing 18 or chassis 11.Housing 18
One end sealing welding forms sealed air chamber G on chassis 11.Characterized in that, sealed air chamber's G interior sealings have compensation gas, should
Compensation gas plays temperature compensation function to signaling gear.Display observation window 30 is fixed on chassis 11, and indicating value indication mechanism is aobvious
Show in observation window 30.Joint 3 is fixed on housing 18.Display end seat 5 is fixed on chassis 11, and chassis 11 is provided with air admission hole A,
Air admission hole A is interconnected by connector B and joint 3 in gas circuit.In gas circuit, display Baden pipe 4, bellows 1 are by entering
Stomata A, connector B and joint 3 are interconnected.
The joint 3 is fixed on housing 18, and the indicating value indication mechanism is in display observation window 30.Spring 12 is sheathed on
On the push rod 13, and one end of the spring 12 abuts with the support 37, and the other end abuts with the push rod guide 39.
Push rod 13 is passed through from push rod guide 39, and push rod guide 39 is fixed on fixed mount 17
Microswitch 16 is arranged on the front and rear of regulating part fixed plate 9.
Referring to Fig. 1, Fig. 2 and Fig. 3, product of the embodiment of the present invention also includes the maintaining body 14 and reset machine after signalizing activity
Structure 40.Described maintaining body 14 with need signal keep signal contact be correspondingly arranged, after the signalizing activity, no matter pressure
Or density reduces or increase, maintaining body 14 can keep signalizing activity state, can only can just make signal by resetting-mechanism 40
Reset.Described maintaining body 14 is elastic component.When reaching the pressure or density of setting, regulating part 38 promotes microswitch 16
Movement arm 15 move, the movement arm 15 of microswitch 16 is crossed elastic component 14.I.e. after the signalizing activity, no matter pressure or
Density reduces or increase, elastic component 14 can keep the movement arm 15 of microswitch 16 to be in signalizing activity state.
Fig. 1 and Fig. 2 specifically is combined, described maintaining body is elastic component 14.When reaching the pressure or density of setting, adjust
Section part 38 promotes the movement arm 15 of microswitch 16 to move, and the movement arm 15 of microswitch is crossed elastic component 14, such as Fig. 2 institutes
Show.I.e. after the signalizing activity, no matter pressure or density reduce or increase, elastic component 14 can keep the movement arm of microswitch
15 are in signalizing activity state.Certainly described maintaining body mainly includes spring and holding element.When the pressure for reaching setting
Or during density, regulating part promotes the movement arm motion of microswitch, make movement arm stretching or the compression spring of microswitch, make micro-
The movement arm of dynamic switch crosses holding element, and holding element blocks the movement arm of microswitch.I.e. after the signalizing activity, no matter
Pressure or density reduce or increase, holding element can keep the movement arm of microswitch to be in signalizing activity state.When the letter
After number action, no matter pressure or density reduce or increase, elastic component can keep the movement arm of microswitch to be in signalizing activity
State, just it can only can reset signal by resetting-mechanism 40.Referring to Fig. 4, as shown in broken lines, by operating reset machine
Structure 40, makes resetting-mechanism 40 promote movement arm 15 of the maintaining body 14 away from microswitch, and the movement arm 15 of microswitch recovers
Normal condition, reset signal.The resetting-mechanism is rotary motion, spinning reduction mechanism, resetting-mechanism is promoted holding machine
Movement arm of the structure away from microswitch, the movement arm of microswitch recover normal condition, reset signal.The resetting-mechanism is
The one rod member composition with lever, by rotation process handle, the rod member 40 of spinning reduction mechanism, promotes the rod member of resetting-mechanism
Movement arm of the maintaining body away from microswitch, the movement arm of microswitch recover normal condition, reset signal.The reset
Mechanism presses or extracted resetting-mechanism horizontally or vertically to move, resetting-mechanism is promoted maintaining body away from microswitch
Movement arm, the movement arm of microswitch recover normal condition, reset signal.The resetting-mechanism is an element with lever
Composition, by pressing or extracting lever, promotes the element of resetting-mechanism, makes the element of resetting-mechanism promote maintaining body remote
The movement arm of microswitch, the movement arm of microswitch recover normal condition, reset signal.
Referring to shown in Fig. 2 and Fig. 3, the resetting-mechanism also includes reduction apparatus 42, after operating resetting-mechanism, reduction apparatus
42 can make resetting-mechanism restore to the original state.The reduction apparatus is flexible member 42, after operation resetting-mechanism terminates, reduction apparatus
The elastic force of flexible member resetting-mechanism 40 can be made to restore to the original state.Or the reduction apparatus contains spring, reset machine is operated
After structure terminates, the elastic force or pulling force of the spring of reduction apparatus can make resetting-mechanism restore to the original state.
In addition, specific described maintaining body can mainly include spring and holding element.When the pressure for reaching setting or
During density, regulating part 38 promotes the movement arm 15 of microswitch to move, and the movement arm 15 of microswitch is stretched or compression spring,
The movement arm of microswitch is set to cross holding element, holding element 14 blocks the movement arm of microswitch.I.e. when the signalizing activity
Afterwards, no matter pressure or density reduce or increase, holding element can keep the movement arm of microswitch to be in signalizing activity state.
After the signalizing activity, no matter pressure or density reduce or increase, elastic component can keep the movement arm of microswitch to be in letter
Number operating state, just can only can reset signal by resetting-mechanism 40.I.e. by operating resetting-mechanism 40, make resetting-mechanism 40
Movement arm 15 of the maintaining body 14 away from microswitch 16 is promoted, the movement arm 15 of microswitch 16 recovers normal condition, makes letter
Number reset.The resetting-mechanism 40 is rotary motion, spinning reduction mechanism 40, makes resetting-mechanism 40 promote maintaining body 14 remote
The movement arm 15 of microswitch, the movement arm 15 of microswitch recover normal condition, reset signal.Resetting-mechanism 40 and housing
It is sealing, when operating resetting-mechanism 40, sealed air chamber G is in sealing state all the time.Resetting-mechanism 40 by sealing ring with
Housing realizes sealing.The resetting-mechanism 40 is that a rod member 401 with lever forms, multiple by rotation process handle, rotation
The rod member of position mechanism, the rod member 401 of resetting-mechanism is set to promote movement arm 15 of the maintaining body 14 away from microswitch, microswitch
Movement arm 15 recover normal condition, reset signal.It is shown in Figure 5, in addition the resetting-mechanism can also be it is horizontal or
Vertical movement, as shown in broken lines, presses or extracts resetting-mechanism 40, resetting-mechanism is promoted maintaining body away from fine motion
The movement arm of switch, the movement arm of microswitch recover normal condition, reset signal.Or the resetting-mechanism is that a band operates
The element composition of handle, by pressing or extracting lever, promotes the element of resetting-mechanism, promotes the element of resetting-mechanism and keeps
Movement arm of the mechanism away from microswitch, the movement arm of microswitch recover normal condition, reset signal.Its method is various,
Such as can also the resetting-mechanism be vertical curve motion, press or extract resetting-mechanism, make resetting-mechanism promotion holding machine
Movement arm of the structure away from microswitch, the movement arm of microswitch recover normal condition, reset signal.The resetting-mechanism is
The one element composition with lever, by upper group or setting aside lever, promotes the element of resetting-mechanism, makes the element of resetting-mechanism
Movement arm of the maintaining body away from microswitch is promoted, the movement arm of microswitch recovers normal condition, resets signal.
The resetting-mechanism 40 also includes reduction apparatus 42, and after operating resetting-mechanism 40, reduction apparatus 42 can make reset
Mechanism 40 restores to the original state.The reduction apparatus 42 is flexible member, after operation resetting-mechanism terminates, the flexible member of reduction apparatus
42 elastic force can make resetting-mechanism 40 restore to the original state.The other reduction apparatus contains spring, after operation resetting-mechanism terminates,
The elastic force or pulling force of the spring of reduction apparatus can make resetting-mechanism restore to the original state.
Product of the embodiment of the present invention also includes not dismantling calibration equipment C.Calibration equipment C and connector B is not dismantled mutually to melt
It is combined.The described calibration equipment C (being mutually merged B with connector B) that do not dismantle is fixed on chassis or on housing
Or on joint.The air admission hole A for not dismantling calibration equipment C and chassis, connector B connecting tube 8 phase in gas circuit with joint 3
It is intercommunicated.
The described calibration equipment C that do not dismantle mainly is made up of valve 19, verification mouth 26, can not had to dismounting, be passed through closing
Valve 19, turns off air chamber of the density monitor with inside electric appliance in gas circuit, and density relay is completed by verifying mouth 26
The verification of device.The described valve 19 for not dismantling calibration equipment is blocks class valve, such as ball valve, butterfly valve, gate valve, stop valve, rotation
Plug valve, butterfly valve, needle valve, diaphragm valve etc., can not have to dismounting, by closing valve, make density monitor in gas circuit with electricity
The air chamber shut-off of gas device interior, the verification of density monitor is completed by verifying mouth.
Product of embodiment of the present invention indication mechanism also includes displays temperature compensating element, and the displays temperature compensating element, is
Bimetal leaf 6.Compensation gas in the sealed air chamber of the bimetal leaf 6 and indication mechanism plays to indicating value indication mechanism jointly
Temperature compensation function.Certain indication mechanism also includes displays temperature compensating element, and the displays temperature compensating element, is filled with benefit
Repay the compensating device of gas.The compensating device filled with compensation gas compensates Baden pipe for the display filled with compensation gas, or
Compensating device filled with compensation gas compensates bellows for the display filled with compensation gas.Certain displays temperature compensating element,
It can also be sealing gas.Also include temperature-sensitive bag, the compensation gas is connected by connecting tracheae with temperature-sensitive bag.
Product of the embodiment of the present invention also includes：Spring 12, spring 12 are nested on push rod 13, and one end of spring 12 leans against branch
Frame 37, the other end of spring are leaned against on push rod guide 39.The wire outlet seat is provided with anti-vibration part, and wire outlet seat is fixed on anti-vibration part
On, anti-vibration part is fixed on chassis or housing.The anti-vibration part is bellows or is made up of the thin plate of anti-vibration function.Wire outlet seat
Connecting line is connected with microswitch, and the connecting line of wire outlet seat is connected on the junction block or cable outside housing.The indicating value shows
Show that mechanism is hermetically sealed makes indicating value be shown as absolute pressure, is not influenceed by height above sea level in display observation window 30, and the display is seen
It is transparent glass to examine window front.Together with the display observation window 30 is sealedly and fixedly connected by sealing ring 36 with chassis 11.
The outside of display observation window 30 is nested with table cover 34.Gas tube on chassis or housing.It can be filled with by gas tube
Corresponding compensation gas.Also include air inlet, air inlet is arranged on chassis or housing, and the joint passes through tracheae and air inlet
It is connected or is directly connected with air inlet.Also include air inlet, air inlet is arranged on chassis, the joint and air inlet phase
Connect, filled with compensation gas in the sealed air chamber.The display base is by connecting tube or is directly anchored on chassis, and this is aobvious
Show that pedestal is connected with joint in gas circuit.The outlet connecting seat is fixedly installed in described close by junction block installation transition piece
Seal on cavity, or, the outlet connecting seat is directly fixedly installed in the seal cavity.The seal cavity outer wrap
There is heat-insulation layer.Located at the pallet of rear face of watchcases, anti-vibration pad is provided between the pallet disk and the watchcase.
The other end of the maintaining body 14 to switch the internal bend of fixed mount 41；The movement arm 15 of the microswitch with
The regulating part 38 abuts against, and one end of the movement arm 15 of the microswitch can be in pressure increase, the band of regulating part 38
Maintaining body 14 described in dynamic lower edge slides into the maintaining body 14 and is connected on the maintaining body 14.
The microswitch may be provided at the outside of bellows 1, microswitch 16 be arranged on regulating part fixed plate front portion or
Rear portion.The present embodiment also includes maintaining body 14 and resetting-mechanism 40 after signalizing activity, and the maintaining body 14 is with needing letter
Number signal contact kept is correspondingly arranged, and after the signal contact act, no matter pressure or density are reduced or increased, maintaining body
14 can keep signalizing activity state, just can only can reset signal by resetting-mechanism 40.
In addition, described sulfur hexafluoride gas density relay, can also include movement arm with described microswitch, when
After the signalizing activity, maintaining body maintains and (blocked) movement arm, no matter pressure or density reduces or increase, maintaining body can
Signalizing activity state is kept, just can only can reset signal by resetting-mechanism.For example, described movement arm is elastic component, when
When reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, because movement arm is elastic component, so that it may
So that the movement arm of microswitch crosses maintaining body well, and maintaining body maintains and (blocked) movement arm.So,
I.e. after the signalizing activity, no matter pressure or density reduce or increase, maintaining body can be kept at the movement arm of microswitch
In signalizing activity state.
Described sulfur hexafluoride gas density relay, its (locking) signal of alarming keep implementation method can be with：It is described
Microswitch carry movement arm, after the signalizing activity, maintaining body maintains movement arm, no matter pressure or density reduce or
Increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism.Specifically, institute
The movement arm stated is elastic component.When reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, because
It is elastic component for movement arm, it is possible to easily the movement arm of microswitch is crossed maintaining body, and maintaining body can block
Firmly movement arm.I.e. after the signalizing activity, no matter pressure or density reduce or increase, maintaining body can keep microswitch
Movement arm is in signalizing activity state.
A kind of gas density relay superpressure signal of the technology of the present invention realizes the method kept, it is also possible that described holding
Mechanism is magnetic element.When reaching the pressure or density of setting, the movement arm or magnetic-type electrical contact of microswitch are promoted
Contact motion is acted, the movement arm of microswitch or the action contact of magnetic-type electrical contact is close to magnetic element.I.e. when the letter
After number action, no matter pressure or density reduce or increase, magnetic element can keep the movement arm of microswitch or magnetic auxiliary electricity
The action contact of contact is in signalizing activity state.Or described maintaining body contains magnetic element.When the pressure for reaching setting
When power or density, the movement arm of microswitch or the action contact motion of magnetic-type electrical contact are promoted, makes the action of microswitch
Arm or the action contact of magnetic-type electrical contact cross maintaining body, and the movement arm of microswitch or the action of magnetic-type electrical contact are touched
Head proximate magnetic element.I.e. after the signalizing activity, no matter pressure or density reduce or increase, and the magnetic element of maintaining body is more
The movement arm that can keep microswitch or the action contact of magnetic-type electrical contact is added to be in signalizing activity state
The position of the microswitch can be arranged on the outside of bellows, i.e., microswitch can be disposed below, and be avaled
Go, make the thickness of density monitor thinning.
The gas of monitoring can be the various gas such as sulfur hexafluoride gas, sulfur hexafluoride gas mixture, nitrogen, compressed air
Body.
A kind of gas density relay superpressure signal of the present invention realizes the method kept, or a kind of with temperature-compensating
The gas density relay kept with contact action, has passed through very big innovation, and there is gas pressure (or gas density) to keep
Mechanism and resetting-mechanism, it is possible to achieve electrical equipment arcing overpressure alarm function.I.e. after electrical equipment arcing, its hypertonia
When, being capable of overpressure alarm.And its pressure it is normal when, its alarm signal is always maintained at, can allow operations staff find electrical equipment
Arcing phenomenon, the electrical equipment of timely processing arcing phenomenon, ensure electric power safety operation.
Equally, similarly it is applicable for low pressure alarming, i.e., a maintaining body is provided with low pressure alarming signal, in equipment
Before pressure low-pressure, its corresponding low pressure alarming signal does not act, then the maintaining body does not work, and when electrical equipment is sent out
During angry body pressure anomaly, during its hypotony, low pressure alarming signal can be exported, after exporting low pressure alarming signal, and is worked as
When electrical equipment gas pressure is normal, then the maintaining body works, and its maintaining body is always maintained at the alarm signal, that is, works as
After alarm signal action, no matter pressure or density reduce or increase, maintaining body can keep alarm signal to be in action shape
State, just it can only can reset signal by resetting-mechanism.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (29)
1. a kind of gas density relay superpressure signal realizes the method kept, including the housing of electro connecting pressure gauge, it is arranged on
Signal contact, movement, pointer, dial, the joint of load cell, some electro connecting pressure gauges in the housing, its feature exist
In：A maintaining body is provided with overpressure alarm signal, before the pressure superpressure of equipment, its corresponding overpressure alarm signal does not have
There is action, then the maintaining body does not work, and when gas pressure exception occurs for electrical equipment, can during its hypertonia
Overpressure alarm signal is exported, after exporting overpressure alarm signal, and when electrical equipment gas pressure is normal, then the maintaining body
Work, its maintaining body is always maintained at the alarm signal, i.e., after the alarm signal acts, no matter pressure or density reduce
Or increase, maintaining body can keep alarm signal to be in operating state, just can only can reset signal by resetting-mechanism.
2. gas density relay superpressure signal according to claim 1 realizes the method kept, it is characterised in that also wraps
Include the maintaining body after signalizing activity and resetting-mechanism.
3. gas density relay superpressure signal according to claim 1 realizes the method kept, it is characterised in that described
Signal contact uses microswitch or magnetic-type electrical contact.
4. gas density relay superpressure signal according to claim 1 realizes the method kept, it is characterised in that also wraps
Containing temperature compensating element, the density of gas can be monitored.
5. gas density relay superpressure signal according to claim 3 realizes the method kept, it is characterised in that described
Microswitch includes movement arm.
6. gas density relay superpressure signal according to claim 3 realizes the method kept, it is characterised in that described
Magnetic-type electrical contact includes action contact.
7. gas density relay superpressure signal as claimed in any of claims 1 to 4 realizes the method kept, its
Be characterised by, the maintaining body with need signal keep signal contact be correspondingly arranged, after the signalizing activity, no matter pressure
Or density reduces or increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism.
8. gas density relay superpressure signal according to claim 7 realizes the method kept, it is characterised in that described
Maintaining body be elastic component, when reaching the pressure or density of setting, promote the action contact of magnetic-type electrical contact to move, make
The action contact of magnetic-type electrical contact crosses elastic component, i.e., after the signalizing activity, no matter pressure or density reduce or increase, bullet
Property part can keep the action contact of magnetic-type electrical contact to be in signalizing activity state.
9. the method kept is realized according to any described gas density relay superpressure signal of claim 7, it is characterised in that
Described maintaining body is elastic component, when reaching the pressure or density of setting, promotes the movement arm of microswitch to move, makes micro-
The movement arm of dynamic switch crosses elastic component, i.e., after the signalizing activity, no matter pressure or density reduces or increase, elastic component can
The movement arm of microswitch is kept to be in signalizing activity state.
10. realizing the method kept according to any described gas density relay superpressure signal of claim 7, its feature exists
In the maintaining body includes spring and holding element, when reaching the pressure or density of setting, promotes the action of microswitch
Arm moves, and makes movement arm stretching or the compression spring of microswitch, the movement arm of microswitch is crossed holding element, keep member
Part blocks the movement arm of microswitch, i.e., after the signalizing activity, no matter pressure or density reduce or increase, and holding element can
The movement arm of microswitch is kept to be in signalizing activity state；
Or when reaching the pressure or density of setting, promote the action contact of magnetic-type electrical contact to move, connect magnetic auxiliary electricity
The action contact stretching of point or compression spring, make the action contact of magnetic-type electrical contact cross holding element, holding element is blocked
The action contact of magnetic-type electrical contact, i.e., after the signalizing activity, no matter pressure or density reduce or increase, and holding element can
The action contact of magnetic-type electrical contact is kept to be in signalizing activity state.
11. the method kept, its feature are realized according to any described gas density relay superpressure signal of claim 8~10
Be, after the signalizing activity, no matter pressure or density reduce or increase, elastic component can keep microswitch movement arm or
The action contact of magnetic-type electrical contact is in signalizing activity state, just can only can reset signal by resetting-mechanism.
12. the gas density relay superpressure signal according to claim 1 or 11 realizes the method kept, its feature exists
In, by operating resetting-mechanism, make resetting-mechanism promote movement arm or magnetic-type electrical contact of the maintaining body away from microswitch
Action contact, the action contact of the movement arm of microswitch or magnetic-type electrical contact recovers normal condition, resets signal.
13. gas density relay superpressure signal according to claim 12 realizes the method kept, it is characterised in that institute
It is rotary motion to state resetting-mechanism, spinning reduction mechanism, resetting-mechanism is promoted movement arm of the maintaining body away from microswitch
Or the action contact of magnetic-type electrical contact, the movement arm of microswitch or the action contact of magnetic-type electrical contact recover normal shape
State, reset signal.
14. gas density relay superpressure signal according to claim 13 realizes the method kept, it is characterised in that institute
It is the rod member with lever to state resetting-mechanism, by rotation process handle, the rod member of spinning reduction mechanism, makes the rod member of resetting-mechanism
Promote the action contact of movement arm or magnetic-type electrical contact of the maintaining body away from microswitch, the movement arm or magnetic of microswitch
Help the action contact of formula electric contact to recover normal condition, reset signal.
15. realizing the method kept according to any described gas density relay superpressure signal of claim 12, its feature exists
In the resetting-mechanism is pressed or extracted resetting-mechanism horizontally or vertically to move, make resetting-mechanism promote maintaining body remote
The movement arm of microswitch or the action contact of magnetic-type electrical contact, the movement arm of microswitch or the action of magnetic-type electrical contact
Contact recovers normal condition, resets signal.
16. realizing the method kept according to any described gas density relay superpressure signal of claim 15, its feature exists
In the resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes the member of resetting-mechanism
Part, the element of resetting-mechanism is set to promote the action contact of movement arm or magnetic-type electrical contact of the maintaining body away from microswitch,
The movement arm of microswitch or the action contact of magnetic-type electrical contact recover normal condition, reset signal.
17. realizing the method kept according to any described gas density relay superpressure signal of claim 16, its feature exists
In the resetting-mechanism moves for vertical curve, presses or extract resetting-mechanism, resetting-mechanism is promoted maintaining body away from micro-
The movement arm of dynamic switch or the action contact of magnetic-type electrical contact, the movement arm of microswitch or the action of magnetic-type electrical contact are touched
Head recovers normal condition, resets signal.
18. realizing the method kept according to any described gas density relay superpressure signal of claim 17, its feature exists
In the resetting-mechanism is an element composition with lever, by pressing or extracting lever, promotes the member of resetting-mechanism
Part, the element of resetting-mechanism is set to promote the action contact of movement arm or magnetic-type electrical contact of the maintaining body away from microswitch,
The movement arm of microswitch or the action contact of magnetic-type electrical contact recover normal condition, reset signal.
19. gas density relay superpressure signal according to claim 12 realizes the method kept, it is characterised in that institute
Stating resetting-mechanism also includes reduction apparatus, and after operating resetting-mechanism, reduction apparatus can make resetting-mechanism restore to the original state.
20. gas density relay superpressure signal according to claim 19 realizes the method kept, it is characterised in that institute
It is flexible member to state reduction apparatus, and after operation resetting-mechanism terminates, the elastic force of the flexible member of reduction apparatus can make reset machine
Structure restores to the original state.
21. gas density relay superpressure signal according to claim 19 realizes the method kept, it is characterised in that institute
State reduction apparatus and contain spring, after operation resetting-mechanism terminates, the elastic force or pulling force of the spring of reduction apparatus can make reset machine
Structure restores to the original state.
22. gas density relay superpressure signal according to claim 19 realizes the method kept, it is characterised in that institute
It is Baden pipe to state load cell, or bellows, or Baden pipe and bellows composition.
23. the gas density relay superpressure signal according to claim 1 or 4 or 5 realizes the method kept, its feature
Be, described microswitch includes movement arm, and after the signalizing activity, maintaining body maintains movement arm, no matter pressure or
Density reduces or increase, maintaining body can keep signalizing activity state, just can only can reset signal by resetting-mechanism；
Or the action contact of described magnetic-type electrical contact, after the signalizing activity, maintaining body maintains magnetic auxiliary electricity and connect
The action contact of point, no matter pressure or density reduce or increase, maintaining body can keep signalizing activity state, can only be by multiple
Position mechanism can just reset signal.
24. gas density relay superpressure signal according to claim 23 realizes the method kept, it is characterised in that institute
The movement arm stated is elastic component, and when reaching the pressure or density of setting, regulating part promotes the movement arm motion of microswitch, makes
The movement arm of microswitch crosses maintaining body, i.e., after the signalizing activity, no matter pressure or density reduce or increase, keep machine
Structure can keep the movement arm of microswitch to be in signalizing activity state.
25. gas density relay superpressure signal according to claim 1 or 2 realizes the method kept, it is characterised in that
Resetting-mechanism is sealing with housing, and when operating resetting-mechanism, the sealed air chamber in housing is in sealing state all the time.
26. gas density relay superpressure signal according to claim 25 realizes the method kept, it is characterised in that institute
State resetting-mechanism and sealing is realized by sealing ring and housing.
27. gas density relay superpressure signal according to claim 4 realizes the method kept, it is characterised in that institute
It is bimetal leaf or the compensating device filled with compensation gas to state temperature compensating element.
28. gas density relay superpressure signal according to claim 1 realizes the method kept, it is characterised in that institute
The maintaining body stated is magnetic element, when reaching the pressure or density of setting, promotes the movement arm or magnetic auxiliary of microswitch
The action contact motion of electric contact, makes the movement arm of microswitch or the action contact of magnetic-type electrical contact be close to magnetic element,
I.e. after the signalizing activity, no matter pressure or density reduce or increase, magnetic element can keep microswitch movement arm or
The action contact of magnetic-type electrical contact is in signalizing activity state.
29. the gas density relay superpressure signal according to claim 1 or 28 realizes the method kept, its feature exists
In the maintaining body contains magnetic element, when reaching the pressure or density of setting, promotes the movement arm or magnetic of microswitch
Help the action contact of formula electric contact to move, the movement arm of microswitch or the action contact of magnetic-type electrical contact is crossed holding machine
Structure, the movement arm of microswitch or the action contact proximate magnetic element of magnetic-type electrical contact, i.e., after the signalizing activity, no matter
Pressure or density reduce or increase, the magnetic element of maintaining body can more keep the movement arm of microswitch or magnetic auxiliary electricity to connect
The action contact of point is in signalizing activity state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711223483.1A CN107863268B (en) | 2017-11-29 | 2017-11-29 | Method for realizing holding of overpressure signal of gas density relay |
| CN201910258612.3A CN109904033B (en) | 2017-11-29 | 2017-11-29 | Method for realizing holding of overpressure signal of gas density relay |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711223483.1A CN107863268B (en) | 2017-11-29 | 2017-11-29 | Method for realizing holding of overpressure signal of gas density relay |
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| CN201910258612.3A Division CN109904033B (en) | 2017-11-29 | 2017-11-29 | Method for realizing holding of overpressure signal of gas density relay |
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| US3417250A (en) * | 1965-04-22 | 1968-12-17 | Stewart Warner Corp | Oil mist particle density detection method and apparatus utilizing a stable oil coating and a unijunction oscillator circuit |
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| CN101847544A (en) * | 2010-05-14 | 2010-09-29 | 上海乐研电气科技有限公司 | Sulfur hexafluoride gas density relay |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107863268B (en) | 2019-12-10 |
| CN109904033A (en) | 2019-06-18 |
| CN109904033B (en) | 2021-02-09 |
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Denomination of invention: A method for maintaining overpressure signal of gas density relay Effective date of registration: 20211118 Granted publication date: 20191210 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Huangpu sub branch Pledgor: SHANGHAI ROYE ELECTRIC Co.,Ltd. Registration number: Y2021310000103 |
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