CN104299844B - A kind of wide range sulfur hexafluoride gas density relay - Google Patents
A kind of wide range sulfur hexafluoride gas density relay Download PDFInfo
- Publication number
- CN104299844B CN104299844B CN201410562016.1A CN201410562016A CN104299844B CN 104299844 B CN104299844 B CN 104299844B CN 201410562016 A CN201410562016 A CN 201410562016A CN 104299844 B CN104299844 B CN 104299844B
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- China
- Prior art keywords
- display
- sulfur hexafluoride
- gas density
- bellows
- wide range
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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
- H01H35/36—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by curled flexible tube, e.g. Bourdon tube
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/052—Controlling, signalling or testing correct functioning of a switch
Abstract
The invention discloses wide range sulfur hexafluoride gas density relay to include: the signaling gear linked together and indicating value indication mechanism；The bellows of gas density in detection sulfur hexafluoride electrical equipment it is provided with and as the microswitch of contact in signaling gear；Indicating value indication mechanism includes: display Baden pipe, displays temperature compensating element, display end seat, movement, dial, pointer and display base；One end of display Baden pipe and one end of displays temperature compensating element, are both secured to display end seat, the other end of display Baden pipe is connected on display base, the other end of displays temperature compensating element, passes sequentially through display linking arm and display connecting rod is connected with movement or the other end of displays temperature compensating element, is directly connected with movement, before pointer is installed on movement and is located at dial.The wide range sulfur hexafluoride gas density relay that the present invention provides, gamut scope (the 0.1～0.9MPa) display of gas density relay can be realized easily, particularly it is very easy to the display realizing being initiated with 0.1MPa, just can show vacuum when vacuumizing, be very easy to popularization and application.
Description
Technical field
The present invention relates to technical field of electric power, be specifically related to a kind of wide range sulfur hexafluoride gas density relay
Device.
Background technology
At present, it is used for monitoring the sulfur hexafluoride gas of the sulfur hexafluoride gas density in sulfur hexafluoride electrical equipment
The load cell that the signaling gear (signal control portion) of volume density relay typically uses be bellows,
The contact used is microswitch, and the indicating value indication mechanism of this sulfur hexafluoride gas density relay is general also
The bellows in signaling gear is used to be total to by bellows and microswitch as load cell, signaling gear
The signal of telecommunication of same-action output reflection sulfur hexafluoride gas density, indicating value indication mechanism passes through bellows simultaneously
The mechanical deformation occurred because of pressure own is also shown by movement control pointer instruction sulfur hexafluoride gas density
Value.But for this sulfur hexafluoride gas density relay, its indicating value indication mechanism based on bellows,
Range indication range is little, it is difficult to realize gamut scope (-0.1～0.9MPa) display, particularly can not be real
Now it is initiated with the display of-0.1MPa, vacuum cannot be shown when vacuumizing, be not easy very much popularization and application,
So in the urgent need to innovation.
Summary of the invention
The present invention provides a kind of wide range sulfur hexafluoride gas density relay, for solving prior art
The range indication range of sulfur hexafluoride gas density relay is little, it is difficult to realize that gamut scope shows asks
Topic.
The wide range sulfur hexafluoride gas density relay that the present invention provides, including: the letter linked together
Number mechanism and indicating value indication mechanism；
The bellows of gas density and conduct in detection sulfur hexafluoride electrical equipment it is provided with in described signaling gear
The microswitch of contact；
Described indicating value indication mechanism includes: display Baden pipe, displays temperature compensating element, display end seat,
Movement, dial, pointer and display base；One end of described display Baden pipe and described displays temperature are mended
The one end repaying element is both secured to described display end seat, and the other end of described display Baden pipe is connected to described
On display base, the other end of described displays temperature compensating element, passes sequentially through display linking arm and display connects
Bar is connected with described movement or the other end of described displays temperature compensating element, directly connects with described movement
Connect, before described pointer is installed on described movement and is located at described dial.
Further, described displays temperature compensating element, includes: bimetal leaf constitute compensating device or fill
There is the compensating device compensating gas.
Further, described signaling gear also includes: seals cavity, Signal Regulation mechanism and outlet and connects seat；
Described bellows is located in described annular seal space body；Described Signal Regulation mechanism and described microswitch pair
Should arrange, the holding wire of described microswitch is connected to described outlet and connects seat；
Wherein, the first end of described bellows seal, the second end of described bellows electric with sulfur hexafluoride
Equipment is connected and described annular seal space is filled with compensation gas, or, the first end of described bellows and
Second end all seals, described sealing cavity is connected with sulfur hexafluoride electrical equipment and fills in described bellows
There is compensation gas.
Further, described signaling gear also includes: spring and spring fixed seat；
One end of described spring is connected to the position that described Signal Regulation mechanism is connected with described bellows
Place, the other end of described spring is connected to described spring fixed seat；Described spring fixed seat is fixedly installed in
Between described bellows and described microswitch.
Further, one end that described Signal Regulation mechanism is connected with described bellows extends to described ripple
The inside of pipe.
Further, the other end of described spring is connected to described spring fixed seat by spring adjustment mechanism.
Further, described Signal Regulation mechanism is provided with regulation screw.
Further, described outlet connection seat is installed transition piece by junction block and is fixedly installed in described annular seal space
On body, or, described outlet connects seat and is directly fixedly installed on described sealing cavity.
Further, described annular seal space external body is enclosed with heat-insulation layer.
Further, the wide range sulfur hexafluoride gas density relay of the present invention also includes: be located at described close
The housing of envelope containment portion, is provided with anti-vibration pad between described sealing cavity and described housing.
The wide range sulfur hexafluoride gas density relay that the present invention provides, indicating value indication mechanism (display part
Point) load cell use Baden pipe, be different from prior art show part load cell use ripple
Line pipe, overcomes that bellows displacement is little, is difficult to gamut display problem, can be real easily
Gamut scope (-the 0.1～0.9MPa) display of existing gas density relay, is particularly very easy to realize
It is initiated with the display of-0.1MPa, when vacuumizing, just can show vacuum, be very easy to popularization and application.And
The load cell that its signaling gear (signal control portion) is used simultaneously is bellows, ensures density
The high resistance to shock of relay, and the contact used is microswitch, ensures the reliable of density monitor
Electric property.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below
The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this
Some bright embodiments, for those of ordinary skill in the art, are not paying creative work
Under premise, it is also possible to obtain other accompanying drawing according to these accompanying drawings；
Fig. 1 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention one shows
It is intended to；
Fig. 2 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention two shows
It is intended to；
Fig. 3 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention three shows
It is intended to；
Fig. 4 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention four shows
It is intended to；
Fig. 5 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention five shows
It is intended to；
Fig. 6 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention six shows
It is intended to；
Fig. 7 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention seven shows
It is intended to；
Fig. 8 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention nine shows
It is intended to.
Detailed description of the invention:
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Fig. 1 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention one shows
It is intended to, as it is shown in figure 1, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention one includes:
The signaling gear linked together and indicating value indication mechanism.Detection sulfur hexafluoride it is provided with in described signaling gear
In electrical equipment gas density bellows and as some microswitches of contact.
Described indicating value indication mechanism includes: display Baden pipe 71, displays temperature compensating element, 72, display end
Seat 73, movement 74, dial 75, pointer 76 and display base 77；One end of described display Baden pipe 71
It is both secured to described display end seat 73, described display Baden with one end of described displays temperature compensating element, 72
The other end of pipe 71 is connected on described display base 77, the other end of described displays temperature compensating element, 72
Pass sequentially through display linking arm and display connecting rod is connected with described movement 74 or described displays temperature compensates unit
The other end of part 72 is directly connected with described movement 74, and described pointer 76 is installed on described movement 74 and sets
Before described dial 75, it is achieved sulfur hexafluoride density indicating value display function.Wherein, display base 77
It is connected with sulfur hexafluoride electrical equipment, makes lithium based in sulfur hexafluoride electrical equipment of Baden's pipe 71
The pressure of sulphur gas and there is mechanical deformation, drive movement to work by this mechanical deformation.The present invention implements
The wide range sulfur hexafluoride gas density relay of example one uses display Baden pipe to substitute ripple of the prior art
Line pipe as the critical component of indicating value indication mechanism, can realize easily gamut scope (-0.1～
0.9MPa) display, is particularly very easy to the display realizing being initiated with-0.1MPa, the most permissible when vacuumizing
Display vacuum, is very easy to popularization and application.And its signaling gear (signal control portion) is adopted simultaneously
Load cell be bellows, ensure the high resistance to shock of density monitor, and the contact used be
Microswitch, ensures the reliable electric property of density monitor.Described displays temperature compensating element, 72
Compensating device that bimetal leaf constitutes or employing can be used to be filled with the compensating device compensating gas.
Described signaling gear specifically includes: seal cavity 2, bellows 1, several microswitch 3, signals
Governor motion 4 and outlet connect seat 5.Described bellows 1 is located in described sealing cavity 2；Described signal is adjusted
Joint mechanism 4 is correspondingly arranged with described microswitch 3, and the holding wire of described microswitch 3 is connected to described outlet
Connect seat 5.First end of described bellows 1 connects described Signal Regulation mechanism 4.
Wherein, the second end and the sulfur hexafluoride electricity of the first end sealing of described bellows 1, described bellows 1
Gas equipment is connected and is filled with compensation gas in described sealing cavity 2.In addition it is also possible to be set to described ripple
First end and second end of pipe all seal, described sealing cavity is connected with sulfur hexafluoride electrical equipment and institute
Compensation gas it is filled with in stating bellows.Described microswitch 3 and described Signal Regulation mechanism 4 can be located at institute
State in sealing cavity 2, or, described microswitch and described Signal Regulation mechanism can also be located at described close
Envelope cavity 2 is outside.Described Signal Regulation mechanism 4 be also provided with regulate screw 41, regulation screw 41 in order to
The regulation warning of density monitor, locking contact working value.Described outlet connects seat 5 and described sealing cavity
Seal between 2 and arrange.Described outlet connects seat 5 and can be fixedly installed in described by junction block installation transition piece
Seal on cavity 2, or, described outlet connects seat 5 can also directly be fixedly installed in described sealing cavity 2
On.The holding wire of described microswitch 3 can also be connected with the signal is far passed circuit, close to realize sulfur hexafluoride
The on-line monitoring of degree.Sealing cavity 2 can be made up of metal material (being such as welded), outlet connects
Seat 5 is made up of metal, glass and some lead-out wires.
The operation principle of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention one is: regulation
Well after regulation screw 41, seal cavity 2, typically realized by welding, then sealing cavity 2 is taken out
Application of vacuum, the parameter then according to wide range sulfur hexafluoride gas density relay is filled in sealing cavity 2
Enter the compensation gas of relevant pressure.If SF6 (sulfur hexafluoride) electrical equipment does not leak gas, wide range six
Sulfur fluoride gas density relay does not the most send warning block signal；If SF6 electrical equipment leaks gas, when
When SF6 gas density in SF6 electrical equipment is near or below the density compensating gas sealing in cavity 2,
Wide range sulfur hexafluoride gas density relay is issued by warning block signal, it is ensured that power grid security.
Fig. 2 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention two shows
It is intended to, as in figure 2 it is shown, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention two includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4, spring 61, spring solid
Reservation 62 and outlet connect seat 5.Compensation gas it is filled with in described sealing cavity 2, described bellows 1, described
Microswitch 3 and described Signal Regulation mechanism 4 are located in described sealing cavity 2；Described Signal Regulation mechanism 4
Being correspondingly arranged with described microswitch 3, the holding wire of described microswitch 3 connects seat 5 by described outlet and draws
Going out, described outlet connects sealing between seat 5 and described sealing cavity 2 and arranges；One end (of described bellows 1
One end) it is to seal and connect described Signal Regulation mechanism 4, the other end (the second end) of described bellows 1
It is connected with sulfur hexafluoride electrical equipment by jointing 91, in described sealing cavity 2, is filled with compensation gas
Body.One end of described spring 61 is connected to the position that described Signal Regulation mechanism 4 is connected with described bellows 1
Putting place, the other end of described spring 61 is fixedly connected on described spring fixed seat by spring adjustment mechanism 63
62；Described spring fixed seat 62 is fixedly installed between described bellows 1 and described microswitch 3.Described
Signal Regulation mechanism 4 is also provided with regulating screw 41, and regulation screw 41 is in order to regulate the report of density monitor
Alert, locking contact working value.The holding wire of described microswitch 3 can also connect the signal is far passed circuit, with
Realize the on-line monitoring of sulfur hexafluoride density.
The wide range sulfur hexafluoride gas density relay of the embodiment of the present invention two can also include: housing 81,
It is wrapped in heat-insulation layer 82, outlet Ge Lan 92, the keeper (or guide) 93 sealed outside cavity 2 and connects
Line seat 94.82 insulation effects of heat-insulation layer, can be effectively prevented from environment temperature and change suddenly caused mistake
Report to the police.
The operation principle of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention two is: ripple
Pipe 1 is mainly as gas pressure transfer device, by using the combination of bellows 1 and spring 61 to realize spring
61 are used as the main measuring cell of pressure, improve measuring accuracy further.If SF6 electrical equipment does not leak
Gas, wide range sulfur hexafluoride gas density relay does not the most send warning block signal；If SF6 electrically sets
Standby gas leakage, when the SF6 gas density in SF6 electrical equipment is near or below the compensation gas sealed in cavity 2
During the density of body, wide range sulfur hexafluoride gas density relay is issued by warning block signal, it is ensured that electricity
Net safety.
The wide range sulfur hexafluoride gas density relay of the embodiment of the present invention two also includes: be located at described close
The indicating value indication mechanism being independently arranged of envelope cavity wall.Described indicating value indication mechanism includes: display Baden
Pipe 71, displays temperature compensating element, 72, display end seat 73, movement 74, dial 75, pointer 76 and aobvious
Show pedestal 77.Display base 77 is connected with sulfur hexafluoride electrical equipment.The one of described display Baden pipe 71
One end of end and described displays temperature compensating element, 72 is both secured to described display end seat 73, described display bar
The other end stepping on pipe 71 is connected on described display base 77, another of described displays temperature compensating element, 72
Hold by showing that connecting rod is connected with described movement 74 or the other end of described displays temperature compensating element, 72 is straight
Connecing and be connected with described movement 74, described pointer 76 is installed on described movement 74 and is located at described dial 75
Before, to realize density indicating value display function.The wide range sulfur hexafluoride gas of the embodiment of the present invention two is close
Degree relay can realize gamut scope (-0.1～0.9MPa) display easily, the most very
Easily realize being initiated with the display of-0.1MPa, when vacuumizing, just can show vacuum, be very easy to promote
Application.
Fig. 3 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention three shows
It is intended to, as it is shown on figure 3, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention three includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4, spring 61, spring solid
Reservation 62 and outlet connect seat 5.First end and second end of described bellows 1 all seal, specifically, and ripple
First end of line pipe 1 is to seal and connect Signal Regulation mechanism 4 and spring 33, and the second end of bellows 1 is close
Envelope (such as, seal welding) is sealing the inwall of cavity 2, and described sealing cavity 2 is by jointing 91
It is connected with sulfur hexafluoride electrical equipment, in described bellows 1, is filled with compensation gas.
One end that described Signal Regulation mechanism 4 is connected with described bellows 1 extends to described bellows 1
Internal.One end of described spring 61 is connected to what described Signal Regulation mechanism 4 was connected with described bellows 1
Position, the other end of described spring 61 is fixedly connected on described spring by spring adjustment mechanism 63 and fixes
Seat 62；Described spring fixed seat 62 is fixedly installed between described bellows 1 and described microswitch 3.
The wide range sulfur hexafluoride gas density relay of the embodiment of the present invention three can also include: housing 81,
It is wrapped in sealing heat-insulation layer 82, outlet Ge Lan 92, keeper (or guide) 93 outside cavity 2, connects
The indicating value indication mechanism of line seat 94 and relatively independent setting.Described indicating value indication mechanism includes: display bar
Step on pipe 71, displays temperature compensating element, 72, display end seat 73, movement 74, dial 75, pointer 76 and
Display base 77.Display base 77 is connected with sulfur hexafluoride electrical equipment.Described display Baden pipe 71
One end of one end and described displays temperature compensating element, 72 is both secured to described display end seat 73, described display
The other end of Baden's pipe 71 is connected on described display base 77, described displays temperature compensating element, 72 another
One end passes sequentially through display linking arm and display connecting rod is connected with described movement 74 or described displays temperature is mended
The other end repaying element 72 is directly connected with described movement 74, and described pointer 76 is installed on described movement 74
And before being located at described dial 75, it is achieved density indicating value display function.
The operation principle of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention three is: ripple
Pipe 1 is mainly as gas pressure transfer device, by using the combination of bellows 1 and spring 61 to realize spring
61 are used as the main measuring cell of pressure, improve measuring accuracy further.If SF6 electrical equipment does not leak
Gas, wide range sulfur hexafluoride gas density relay does not the most send warning block signal；If SF6 electrically sets
Standby gas leakage, when the SF6 gas density in SF6 electrical equipment is near or below the compensation gas sealed in cavity 2
During the density of body, seal the both sides of the bellows 1 that the two ends in cavity 2 are sealed all by SF6 electrical equipment
The pressure effect of interior SF6 gas, wide range sulfur hexafluoride gas density relay is issued by warning locking letter
Number, it is ensured that power grid security.
Fig. 4 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention four shows
Being intended to, as shown in Figure 4, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention four includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4 and outlet and connect seat 5.Institute
State the first end of bellows 1 and the second end all seals and the inside of bellows 1 is filled with compensation gas, described close
Envelope cavity 2 is connected with sulfur hexafluoride electrical equipment by jointing 91.The embodiment of the present invention four a large amount of
Journey sulfur hexafluoride gas density relay also includes: housing 81, is wrapped in and seals heat-insulation layer outside cavity 2
82, outlet Ge Lan 92, keeper (or guide) 93, junction block 94 and the indicating value that is independently arranged show
Show mechanism.Described indicating value indication mechanism includes: shows Baden's pipe 71, displays temperature compensating element, 72, show
Show end seat 73, movement 74, dial 75, pointer 76 and display base 77.Display base 77 is with lithium
Sulphur electrical equipment is connected.One end of described display Baden pipe 71 and described displays temperature compensating element, 72
One end is both secured to described display end seat 73, and the other end of described display Baden pipe 71 is connected to described display
On pedestal 77, the other end of described displays temperature compensating element, 72 passes sequentially through display linking arm and display connects
Bar be connected with described movement 74 or described displays temperature compensating element, 72 the other end directly with described movement
74 connect, before described pointer 76 is installed on described movement 74 and is located at described dial 75, it is achieved close
Degree indicating value display function.Its operation principle is as follows: if SF6 electrical equipment does not leak gas, density monitor
The most do not send warning block signal；And if the gas leakage of SF6 electrical equipment, the SF6 in SF6 electrical equipment
During the density compensating gas that gas density is near or below in bellows 1, density monitor is issued by reporting to the police
Block signal, it is ensured that power grid security.The outside sealing cavity 2 is wrapped with heat preservation member 82, plays insulation effect, energy
It is effectively prevented from environment temperature and changes suddenly caused false alarm.
Fig. 5 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention five shows
It is intended to, as it is shown in figure 5, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention five includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4 and outlet to connect seat 5, set
In seal the outside housing 81 of cavity 2, be wrapped in the heat-insulation layer 82 outside sealing cavity 2, outlet Ge Lan 92,
Keeper (or guide) 93, junction block 94 and the indicating value indication mechanism being independently arranged.Housing 81 is adopted
With general conventional densities relay or manometric housing.Described indicating value indication mechanism includes: display Baden
Pipe 71, displays temperature compensating element, 72, display end seat 73, movement 74, dial 75, pointer 76 and aobvious
Show pedestal 77.Display base 77 is connected with sulfur hexafluoride electrical equipment.The one of described display Baden pipe 71
One end of end and described displays temperature compensating element, 72 is both secured to described display end seat 73, described display bar
The other end stepping on pipe 71 is connected on described display base 77, another of described displays temperature compensating element, 72
End passes sequentially through display linking arm and display connecting rod is connected with described movement 74 or described displays temperature compensates
The other end of element 72 is directly connected with described movement 74, described pointer 76 be installed on described movement 74 and
Before being located at described dial 75, it is achieved density indicating value display function.
Fig. 6 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention six shows
Being intended to, as shown in Figure 6, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention six includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4, outlet connection seat 5, set
In seal the outside housing 81 of cavity 2, be wrapped in the heat-insulation layer 82 outside sealing cavity 2, outlet Ge Lan 92,
Keeper (or guide) 93, junction block 94 and the indicating value indication mechanism being independently arranged.Housing 81 is adopted
With general conventional densities relay or manometric housing as its shell, and jointing 91 is radially
Mode, jointing 91 connects with the second end of bellows 1 by connecting tracheae 95, the of bellows 1
One end seals, and jointing 91 connects sulfur hexafluoride electrical equipment, is filled with compensation gas in sealing cavity 2.
Described indicating value indication mechanism includes: display Baden pipe 71, displays temperature compensating element, 72, display end seat 73,
Movement 74, dial 75, pointer 76 and display base 77.Display base 77 and sulfur hexafluoride electrical equipment
It is connected.One end of described display Baden pipe 71 and one end of described displays temperature compensating element, 72 are the most fixing
In described display end seat 73, the other end of described display Baden pipe 71 is connected on described display base 77,
The other end of described displays temperature compensating element, 72 passes sequentially through display linking arm and display connecting rod and described machine
Core 74 connects or the other end of described displays temperature compensating element, 72 is directly connected with described movement 74, institute
State before pointer 76 is installed on described movement 74 and is located at described dial 75, it is achieved density indicating value shows
Function.
Fig. 7 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention seven shows
It is intended to, as it is shown in fig. 7, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention seven includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4, outlet connection seat 5, set
In the housing 81 outside described sealing cavity 2, it is located at keeping away between described sealing cavity 2 and described housing 81
Shake pad 96 and indicating value indication mechanism, and anti-vibration pad 96 can improve shock resistance further.Housing 81 uses
General conventional densities relay or manometric housing are radial manner as its shell, jointing 91,
Jointing 91 connects with the second end of bellows 1 by connecting tracheae 95, and the first end of bellows 1 seals,
Jointing 91 connects sulfur hexafluoride electrical equipment, is filled with compensation gas in sealing cavity 2.Indicating value display machine
Structure includes: display Baden pipe 71, displays temperature compensating element, 72, display end seat 73, movement 74, scale
Dish 75, pointer 76 and display base 77.Display base 77 is connected with sulfur hexafluoride electrical equipment.Described
One end of display Baden pipe 71 and one end of described displays temperature compensating element, 72 are both secured to described display end
Seat 73, the other end of described display Baden pipe 71 is connected on described display base 77, described displays temperature
The other end of compensating element, 72 pass sequentially through display linking arm and display connecting rod be connected with described movement 74 or
The other end of described displays temperature compensating element, 72 is directly connected with described movement 74, and described pointer 76 is installed
On described movement 74 and before being located at described dial 75, it is achieved density indicating value display function.
The wide range sulfur hexafluoride gas density relay of the embodiment of the present invention eight includes: seal cavity, two
Individual bellows, several microswitches, Signal Regulation mechanism, outlet connect seat and indicating value display machine
Structure.Two bellowss are respectively the first bellows and the second bellows.Sealing cavity is located at by second bellows
In, and microswitch and Signal Regulation mechanism to be located at annular seal space external；Signal Regulation mechanism and microswitch
Being correspondingly arranged, the holding wire of microswitch is connected to outlet and connects seat；Second end of the first bellows seals
Connecting the first end of the second bellows, Signal Regulation mechanism is connected to the first bellows and the second bellows
Junction.Wherein, the first end of described second bellows seal, the second end of described second bellows with
Sulfur hexafluoride electrical equipment is connected and described annular seal space is filled with compensation gas, or, described second
First end and second end of bellows all seal, described sealing cavity is connected with sulfur hexafluoride electrical equipment
And it is filled with compensation gas in described bellows.Indicating value indication mechanism includes: display Baden pipe, displays temperature
Compensating element, display end seat, movement, dial, pointer and display base.Described display Baden pipe
One end of one end and described displays temperature compensating element, is both secured to described display end seat, described display Baden
The other end of pipe is connected on described display base, and the other end of described displays temperature compensating element, leads to successively
Cross display linking arm and display connecting rod is connected with described movement or another of described displays temperature compensating element,
End is directly connected with described movement, before described pointer is installed on described movement and is located at described dial,
Realize density indicating value display function, so, the density of gamut scope can be realized easily
Relay (-0.1～0.9MPa).
Fig. 8 is that the part section of the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention nine shows
Being intended to, as shown in Figure 8, the wide range sulfur hexafluoride gas density relay of the embodiment of the present invention nine includes:
Seal cavity 2, bellows 1, several microswitches 3, Signal Regulation mechanism 4, outlet connection seat 5, set
In the housing 81 outside described sealing cavity 2, spring 61, spring fixed seat 62 and indicating value indication mechanism.
Indicating value indication mechanism includes: display Baden pipe 71, temperature compensating element 72, display end seat 73, movement 74,
Dial 75, pointer 76 and pedestal 77.One end (the first end) of described bellows 1 is to seal and connect
Described Signal Regulation mechanism 4, the other end (the second end) of described bellows 1 passes through jointing 91 and six
Sulfur fluoride electrical equipment is connected.One end that described Signal Regulation mechanism 4 is connected with described bellows 1 is prolonged
Extend the inside of described bellows 1.One end of described spring 61 is connected to described Signal Regulation mechanism 4 and institute
Stating the position that bellows 1 is connected, the other end of described spring 61 is fixing even by spring adjustment mechanism 63
It is connected to described spring fixed seat 62；It is micro-with described that described spring fixed seat 62 is fixedly installed in described bellows 1
Between dynamic switch 3.
The wide range sulfur hexafluoride gas density relay of the present invention, signaling gear uses bellows, it is ensured that
Anti-seismic performance is good；Indicating value indication mechanism uses Baden's pipe, owing to using Baden's pipe to realize, overcomes bellows
Displacement is little, be difficult to gamut display problem, can realize the density of gamut scope easily
Relay (-0.1～0.9MPa), is particularly very easy to the display realizing being initiated with-0.1MPa, vacuumizes
Time just can show vacuum, be very easy to popularization and application.Additionally additionally use displays temperature compensating element,
Realize the temperature compensation function of indicating value display part, improve and ensure that precision.In a word, the present invention
Wide range sulfur hexafluoride gas density relay has oil-free, resistance to shock is the best, precision is high, electrical resistance
Can good, long working life, the advantage of gamut indication range.Simultaneously because described microswitch can set
In described annular seal space body, and there is sulfur hexafluoride gas in annular seal space body, because sulfur hexafluoride gas has very
Strong insulation and arc extinguishing ability, so the electric terminal of the technology of the present invention density monitor has extraordinary
Electric property, uses reliable, and contacts is reliable, and the life-span is long, and this is also the biggest innovative point of the present invention
And feature.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a wide range sulfur hexafluoride gas density relay, it is characterised in that including: link together
Signaling gear and indicating value indication mechanism；
The bellows of gas density in detection sulfur hexafluoride electrical equipment it is provided with and as connecing in described signaling gear
The microswitch of point；
Described signaling gear also includes: seals cavity, Signal Regulation mechanism and outlet and connects seat；
Described bellows is located in described annular seal space body；Described Signal Regulation mechanism is corresponding with described microswitch
Arranging, the holding wire of described microswitch is connected to described outlet and connects seat；
Wherein, the first end of described bellows seals, the second end of described bellows electrically sets with sulfur hexafluoride
Standby it is connected and described annular seal space is filled with compensation gas, or, the first end of described bellows and second
End all seals, described sealing cavity is connected with sulfur hexafluoride electrical equipment and is filled with compensation in described bellows
Gas；
Described indicating value indication mechanism includes: display Baden pipe, displays temperature compensating element, display end seat, machine
Core, dial, pointer and display base；One end of described display Baden pipe and described displays temperature compensate unit
One end of part is both secured to described display end seat, and the other end of described display Baden pipe is connected to described display base
On seat, the other end of described displays temperature compensating element, passes sequentially through display linking arm and display connecting rod with described
Movement connects or the other end of described displays temperature compensating element, is directly connected with described movement, described pointer
Before being installed on described movement and being located at described dial.
Wide range sulfur hexafluoride gas density relay the most according to claim 1, it is characterised in that
Described displays temperature compensating element, includes: bimetal leaf constitute compensating device or be filled with compensate gas benefit
Repay device.
Wide range sulfur hexafluoride gas density relay the most according to claim 1, it is characterised in that
Described signaling gear also includes: spring and spring fixed seat；
One end of described spring is connected to the position that described Signal Regulation mechanism is connected with described bellows,
The other end of described spring is connected to described spring fixed seat；Described spring fixed seat is fixedly installed in described ripple
Between line pipe and described microswitch.
Wide range sulfur hexafluoride gas density relay the most according to claim 3, it is characterised in that
One end that described Signal Regulation mechanism is connected with described bellows extends to the inside of described bellows.
Wide range sulfur hexafluoride gas density relay the most according to claim 3, it is characterised in that
The other end of described spring is connected to described spring fixed seat by spring adjustment mechanism.
Wide range sulfur hexafluoride gas density relay the most according to claim 1, it is characterised in that
Described Signal Regulation mechanism is provided with regulation screw.
Wide range sulfur hexafluoride gas density relay the most according to claim 1, it is characterised in that
Described outlet is connected seat and is fixedly installed on described sealing cavity by junction block installation transition piece, or, institute
State outlet connection seat to be directly fixedly installed on described sealing cavity.
Wide range sulfur hexafluoride gas density relay the most according to claim 1, it is characterised in that
Described annular seal space external body is enclosed with heat-insulation layer.
Wide range sulfur hexafluoride gas density relay the most according to claim 1, it is characterised in that
Also include: be located at the housing of described annular seal space external body, between described sealing cavity and described housing, be provided with anti-vibration
Pad.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109213214B (en) * | 2017-07-03 | 2024-04-02 | 国网安徽省电力公司电力科学研究院 | Mixed gas density controller |
| CN107871642B (en) * | 2017-11-29 | 2021-01-08 | 上海乐研电气有限公司 | High-precision gas density relay |
| CN108550499A (en) * | 2018-04-27 | 2018-09-18 | 朗松珂利(上海)仪器仪表有限公司 | Sulfur hexafluoride gas density relay and its assembly technology |
| CN111192791A (en) * | 2020-03-11 | 2020-05-22 | 上海乐研电气有限公司 | High-vibration-resistance gas density relay |
| CN111952105B (en) * | 2020-07-07 | 2022-07-12 | 国家电网有限公司 | Full-range high-precision remote transmission type sulfur hexafluoride gas density relay |
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Effective date of registration: 20161229 Address after: 201802 Shanghai City, Jiading District Nanxiang Town, North Road No. 21, Lane 1755 mares tail four layer B Patentee after: Shanghai joy Electric Co., Ltd. Address before: Qingpu District of Shanghai city Shen brick road building 201802 new No. 221 Building 1 B zone 1 room 123 Patentee before: Shanghai Roye Electronic Science & Technology Co., Ltd. |