CN105390337B - A kind of high antivibration sulfur hexafluoride gas density relay - Google Patents
A kind of high antivibration sulfur hexafluoride gas density relay Download PDFInfo
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- CN105390337B CN105390337B CN201510683075.9A CN201510683075A CN105390337B CN 105390337 B CN105390337 B CN 105390337B CN 201510683075 A CN201510683075 A CN 201510683075A CN 105390337 B CN105390337 B CN 105390337B
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- Prior art keywords
- sulfur hexafluoride
- bellows
- density relay
- gas density
- hexafluoride gas
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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
- H01H35/32—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of high antivibration sulfur hexafluoride gas density relay, including：Seal cavity, bellows, microswitch, signal regulation mechanism and outlet pedestal；Bellows, microswitch and signal regulation mechanism are in seal cavity；Signal regulation mechanism is correspondingly arranged with microswitch, and the signal wire of microswitch is drawn by outlet pedestal, is sealed and is set between outlet pedestal and seal cavity；The first end connection signal regulation mechanism of bellows；Wherein, the first end of bellows is sealed, the second end of bellows is connected with sulfur hexafluoride electrical equipment and annular seal space is filled with compensation gas, or, the first end of bellows and the second end are all sealed, seal cavity is connected with sulfur hexafluoride electrical equipment and bellows in filled with compensation gas.The high antivibration sulfur hexafluoride gas density relay that the present invention is provided, resistance to shock is good, greatly reduces cost of manufacture, and precision is high, good electric property, long working life, and can be worked in the case of oil-free.
Description
Technical field
The present invention relates to technical field of electric power, and in particular to a kind of high antivibration sulfur hexafluoride gas density relay.
Background technology
The sulfur hexafluoride gas density for being used for monitoring in sulfur hexafluoride electrical equipment at present generally uses contact to be opened for fine motion
Close without oil type gas density relay, Fig. 1 for the sulfur hexafluoride gas density relay of prior art structural representation, such as
Shown in Fig. 1, although the microswitch that this sulfur hexafluoride gas density relay is used has the advantages that good electric property,
Because microswitch all carries motion arm 1011,1021,1031, and its displacement is limited, so low precision.More prominent is
Because the length of the contact motion arm 102 in its structure is longer, and it is a cantilever beam, when operating sulphur hexafloride circuit breaker, makes
Vibration into contact motion arm 102 is very big, and then causes sulfur hexafluoride gas density relay misoperation occur, or even ruins
Bad microswitch, loses performance completely.Resistance to shock is poor in a word, and precision property is poor, and range indication range is small, it is difficult to ensure
System reliably working.
The content of the invention
The present invention provides a kind of high antivibration sulfur hexafluoride gas density relay, the sulfur hexafluoride for solving prior art
Gas density relay poor seismic behavior, the problem of complicated, production cost is high.
The high antivibration sulfur hexafluoride gas density relay that the present invention is provided, including：Seal cavity, bellows, fine motion are opened
Pass, signal regulation mechanism and outlet pedestal；The bellows, the microswitch and the signal regulation mechanism are located at described close
Seal in cavity；The signal regulation mechanism is correspondingly arranged with the microswitch, and the signal wire of the microswitch passes through described
Outlet pedestal is drawn, and is sealed and is set between the outlet pedestal and the seal cavity；The first end connection of the bellows is described
Signal regulation mechanism；
Wherein, the first end sealing of the bellows, the second end of the bellows are connected with sulfur hexafluoride electrical equipment
Logical and described annular seal space is filled with compensation gas, or, the first end of the bellows and the second end are all sealed, the sealing
Cavity is connected with sulfur hexafluoride electrical equipment and in the bellows filled with compensation gas.
Further, high antivibration sulfur hexafluoride gas density relay of the invention also includes：Spring and spring fixed seat；
One end of the spring is connected at the position that the signal regulation mechanism is connected with the bellows, the bullet
The other end of spring is connected to the spring fixed seat；The spring fixed seat is fixedly installed in the bellows and opened with the fine motion
Between pass.
Further, the signal regulation mechanism extends to the interior of the bellows with one end that the bellows is connected
Portion.
Further, the other end of the spring is connected to the spring fixed seat by spring adjustment mechanism.
Further, the signal regulation mechanism is provided with adjusting screw.
Further, the outlet pedestal is installed transition piece by junction block and is fixedly installed in the seal cavity, or,
The outlet pedestal is directly fixedly installed in the seal cavity.
Further, the seal cavity outer wrap has heat-insulation layer.
Further, high antivibration sulfur hexafluoride gas density relay of the invention also includes：Outside the seal cavity
The housing in portion, is provided with anti-vibration pad between the seal cavity and the housing.
Further, the signal wire connection signal teletransmission circuit of the microswitch.
Further, high antivibration sulfur hexafluoride gas density relay of the invention also includes：Located at the annular seal space side
The indicating value indication mechanism of wall；
The indicating value indication mechanism includes：Display Baden pipe, temperature compensating element, display end seat, movement, dial, refer to
Pin and pedestal；One end of the display Baden pipe and one end of the temperature compensating element are both secured to the display end seat, institute
The other end for stating display Baden pipe is connected on the pedestal, and the other end of the temperature compensating element is by showing connecting rod and institute
The other end for stating movement connection or the temperature compensating element is directly connected with the movement, and the pointer is installed on the machine
On core and before the dial.
Further, the high antivibration sulfur hexafluoride gas density relay also includes：Movement, dial and pointer；It is described
Movement is connected with the signal regulation mechanism, and the pointer is installed on the movement and before the dial.
The high antivibration sulfur hexafluoride gas density relay that the present invention is provided, resistance to shock is good, greatly reduces and is fabricated to
This, precision is high, good electric property, long working life, and can be worked in the case of oil-free.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes 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；
Fig. 1 is the structural representation of the sulfur hexafluoride gas density relay of prior art；
Fig. 2 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention one；
Fig. 3 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention two；
Fig. 4 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention three；
Fig. 5 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention four；
Fig. 6 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention five；
Fig. 7 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention six；
Fig. 8 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention seven；
Fig. 9 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention eight；
Figure 10 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention nine.
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
A part of 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.
Fig. 2 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention one, such as
Shown in Fig. 2, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention one includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4 and outlet pedestal 5.Filled with compensation gas in the seal cavity 2, the bellows
1st, the microswitch 3 and the signal regulation mechanism 4 are in the seal cavity 2；The signal regulation mechanism 4 with it is described
Microswitch 3 is correspondingly arranged, and the signal wire of the microswitch 3 is drawn by the outlet pedestal 5, the outlet pedestal 5 with
Seal and set between the seal cavity 2；One end (first end) of the bellows 1 is sealed and the connection Signal Regulation machine
Structure 4, the other end (the second end) of the bellows 1 is connected with sulfur hexafluoride electrical equipment, filled with benefit in the seal cavity 2
Repay gas.
Wherein, the signal regulation mechanism 4 is also provided with adjusting screw 41, and adjusting screw 41 is to adjust density relay
The alarm of device, locking contact working value.The outlet pedestal 5 can be fixedly installed in described close by junction block installation transition piece
Seal on cavity 2, or, the outlet pedestal 5 can also be directly fixedly installed in the seal cavity 2.The microswitch 3
Signal wire can be connected with signal teletransmission circuit, to realize the on-line monitoring of sulfur hexafluoride density.Seal cavity 2 can be by gold
Category material is made and (is for example welded), and outlet pedestal 5 is made up of metal, glass and some lead-out wires.
The operation principle of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention one is：Regulate regulation spiral shell
After nail 41, seal cavity 2 is sealed, is typically realized by welding, it is anti-then according to height then to the vacuumize process of seal cavity 2
The parameter of sulfur hexafluoride gas density relay of shaking is filled with the compensation gas of relevant pressure in seal cavity 2.If SF6(six
Sulfur fluoride) electrical equipment do not have gas leakage, and high antivibration sulfur hexafluoride gas density relay does not just send warning block signal；If
SF6Electrical equipment gas leakage, works as SF6SF in electrical equipment6Gas density is near or below the compensation gas in seal cavity 2
Density when, high antivibration sulfur hexafluoride gas density relay is issued by warning block signal, it is ensured that power grid security.
Fig. 3 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention two, such as
Shown in Fig. 3, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention two includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4, spring 61, spring fixed seat 62 and outlet pedestal 5.Filled in the seal cavity 2
There is compensation gas, the bellows 1, the microswitch 3 and the signal regulation mechanism 4 are in the seal cavity 2；Institute
State signal regulation mechanism 4 to be correspondingly arranged with the microswitch 3, the signal wire of the microswitch 3 passes through the outlet pedestal 5
Draw, seal and set between the outlet pedestal 5 and the seal cavity 2；One end (first end) of the bellows 1 is sealed
And the signal regulation mechanism 4 is connected, the other end (the second end) of the bellows 1 passes through jointing 91 and sulfur hexafluoride electricity
Gas equipment is connected, filled with compensation gas in the seal cavity 2.One end of the spring 61 is connected to the Signal Regulation machine
At the position that structure 4 is connected with the bellows 1, the other end of the spring 61 is fixedly connected on by spring adjustment mechanism 63
The spring fixed seat 62；The spring fixed seat 62 is fixedly installed between the bellows 1 and the microswitch 3.Institute
State signal regulation mechanism 4 and be also provided with adjusting screw 41, adjusting screw 41 connects to adjust the alarm of density monitor, locking
Point working value.The signal wire connection signal teletransmission circuit of the microswitch 3, to realize the on-line monitoring of sulfur hexafluoride density.
The high antivibration 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, keeper (or guide) 93 and junction block 94 outside seal cavity 2.82 guarantors of heat-insulation layer
Temperature effect, can be effectively prevented from the false alarm caused by environment temperature suddenly change.
The operation principle of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention two is：Bellows 1 is main
As gas pressure transfer device, realize that spring 61 is used as pressure and mainly surveyed by using the combination of bellows 1 and spring 61
Element is measured, measuring accuracy is further improved.If SF6Electrical equipment does not have gas leakage, high antivibration sulfur hexafluoride gas density relay
Device does not just send warning block signal；If SF6Electrical equipment gas leakage, works as SF6SF in electrical equipment6Gas density is approached
Or less than the compensation gas in seal cavity 2 density when, high antivibration sulfur hexafluoride gas density relay is issued by alarm and closed
Lock signal, it is ensured that power grid security.
The high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention two also includes：Located at the annular seal space side
The indicating value indication mechanism being independently arranged of wall.The indicating value indication mechanism includes：Show Baden pipe 71, temperature compensating element 72,
Display end seat 73, movement 74, dial 75, pointer 76 and pedestal 77.One end of the display Baden pipe 71 and the temperature are mended
The one end for repaying element 72 is both secured to the display end seat 73, and the other end of the display Baden pipe 71 is connected to the pedestal 77
On, the other end of the temperature compensating element 72 is by showing that connecting rod is connected or the temperature compensating element with the movement 74
72 other end is directly connected with the movement 74, and the pointer 76 is installed on the movement 74 and located at the dial 75
Before, to realize density indicating value display function.The high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention two can be with
Gamut scope (- 0.1~0.9MPa) is easily realized, is particularly very easy to realize the display for being initiated with -0.1MPa,
Vacuum can be just shown when vacuumizing, popularization and application are very easy to.
Fig. 4 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention three, such as
Shown in Fig. 4, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention three includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4, spring 61, spring fixed seat 62 and outlet pedestal 5.The first of the bellows 1
End and the second end are all sealed, specifically, and the first end of bellows 1 is sealed and connection signal regulation mechanism 4 and spring 33, ripple
Second end of line pipe 1 seals the inwall of (for example, sealing welding) in seal cavity 2, and the seal cavity 2 passes through jointing 91
It is connected with sulfur hexafluoride electrical equipment, filled with compensation gas in the bellows 1.
The signal regulation mechanism 4 extends to the inside of the bellows 1 with one end that the bellows 1 is connected.Institute
The one end for stating spring 61 is connected at the position that the signal regulation mechanism 4 is connected with the bellows 1, the spring 61
The other end is fixedly connected on the spring fixed seat 62 by spring adjustment mechanism 63；The spring fixed seat 62 is fixedly installed in
Between the bellows 1 and the microswitch 3.
The high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention three can also include：Housing 81, it is wrapped in
Heat-insulation layer 82, outlet Ge Lan 92, keeper (or guide) 93, junction block 94 outside seal cavity 2 and it is independently arranged
Indicating value indication mechanism.The indicating value indication mechanism includes：Show Baden pipe 71, temperature compensating element 72, display end seat 73, movement
74th, dial 75, pointer 76 and pedestal 77.
The operation principle of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention three is：Bellows 1 is main
As gas pressure transfer device, realize that spring 61 is used as pressure and mainly surveyed by using the combination of bellows 1 and spring 61
Element is measured, measuring accuracy is further improved.If SF6Electrical equipment does not have gas leakage, high antivibration sulfur hexafluoride gas density relay
Device does not just send warning block signal；If SF6Electrical equipment gas leakage, works as SF6SF in electrical equipment6Gas density is approached
Or less than the compensation gas in seal cavity 2 density when, the two ends in seal cavity 2 by the both sides of sealed bellows 1 all
By SF6SF in electrical equipment6The pressure effect of gas, high antivibration sulfur hexafluoride gas density relay is issued by locking of alarming
Signal, it is ensured that power grid security.
Fig. 5 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention four, such as
Shown in Fig. 5, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention four includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4 and outlet pedestal 5.The first end of the bellows 1 and the second end are all sealed and ripple
The inside of line pipe 1 is filled with compensation gas, and the seal cavity 2 is connected by jointing 91 with sulfur hexafluoride electrical equipment.
The high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention four also includes：Housing 81, it is wrapped in outside seal cavity 2
Heat-insulation layer 82, outlet Ge Lan 92, keeper (or guide) 93, junction block 94 and the indicating value indication mechanism being independently arranged.
The indicating value indication mechanism includes：Show Baden pipe 71, temperature compensating element 72, display end seat 73, movement 74, dial 75,
Pointer 76 and pedestal 77.Its operation principle is as follows：If SF6Electrical equipment does not have gas leakage, and density monitor does not just send alarm
Block signal；And if SF6Electrical equipment gas leakage, works as SF6SF in electrical equipment6Gas density is near or below bellows 1
During the density of interior compensation gas, density monitor is issued by warning block signal, it is ensured that power grid security.Outside seal cavity 2
Face is wrapped with heat preservation member 82, plays insulation effect, can be effectively prevented from the false alarm caused by environment temperature suddenly change.
Fig. 6 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention five, such as
Shown in Fig. 6, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention five includes：If seal cavity 2, bellows 1,
Do microswitch 3, signal regulation mechanism 4 and outlet pedestal 5, the housing 81 outside seal cavity 2, be wrapped in annular seal space
Heat-insulation layer 82, outlet Ge Lan 92, keeper (or guide) 93, junction block 94 outside body 2 and the indicating value being independently arranged show
Show mechanism.Housing 81 uses general traditional density relay or manometric housing.The indicating value indication mechanism includes：Show bar
Step on pipe 71, temperature compensating element 72, display end seat 73, movement 74, dial 75, pointer 76 and pedestal 77.
Fig. 7 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention six, such as
Shown in Fig. 7, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention six includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4, outlet pedestal 5, the housing 81 outside seal cavity 2, it is wrapped in annular seal space
Heat-insulation layer 82, outlet Ge Lan 92, keeper (or guide) 93, junction block 94 outside body 2 and the indicating value being independently arranged show
Show mechanism.Housing 81 uses general traditional density relay or manometric housing as its shell, and jointing 91
Radial manner, jointing 91 is connected by connecting tracheae 95 with the second end of bellows 1, the first end sealing of bellows 1,
Jointing 91 is connected in sulfur hexafluoride electrical equipment, the seal cavity 2 filled with compensation gas.The indicating value indication mechanism bag
Include：Show Baden pipe 71, temperature compensating element 72, display end seat 73, movement 74, dial 75, pointer 76 and pedestal 77.
Fig. 8 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention seven, such as
Shown in Fig. 8, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention seven includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4, outlet pedestal 5, the housing 81 outside the seal cavity 2, located at described
Anti-vibration pad 96 between seal cavity 2 and the housing 81, anti-vibration pad 96 can further improve shock resistance.Housing 81 is used
General traditional density relay or manometric housing are as its shell, and jointing 91 is radial manner, jointing 91
Connected by connecting tracheae 95 with the second end of bellows 1, the first end sealing of bellows 1, jointing 91 connects lithium
Filled with compensation gas in sulphur electrical equipment, the seal cavity 2.
Fig. 9 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention eight, such as
Shown in Fig. 9, the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention eight includes：If seal cavity 2, bellows 1,
Dry microswitch 3, signal regulation mechanism 4, outlet pedestal 5, the housing 81 outside the seal cavity 2, spring 61, bullet
Spring fixed seat 62 and indicating value indication mechanism.Indicating value indication mechanism includes：Show Baden pipe 71, temperature compensating element 72, display
End seat 73, movement 74, dial 75, pointer 76 and pedestal 77.One end (first end) of the bellows 1 is sealed and connection
The signal regulation mechanism 4, the other end (the second end) of the bellows 1 passes through jointing 91 and sulfur hexafluoride electrical equipment
It is connected, filled with compensation gas in the seal cavity 2.One end that the signal regulation mechanism 4 is connected with the bellows 1
Extend to the inside of the bellows 1.One end of the spring 61 is connected to the signal regulation mechanism 4 and the bellows 1
At the position being connected, the other end of the spring 61 is fixedly connected on the spring fixed seat by spring adjustment mechanism 63
62；The spring fixed seat 62 is fixedly installed between the bellows 1 and the microswitch 3.
Figure 10 is the partial cutaway schematic of the high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention nine, such as
Shown in Figure 10, the high antivibration 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, spring 61, spring fixed seat 62 and outlet pedestal 5.In the seal cavity 2
Filled with compensation gas, the bellows 1, the microswitch 3 and the signal regulation mechanism 4 are in the seal cavity 2；
The seal cavity 2 has observation window 78, and observation window 78 is to be fixed on by cap 79 and the sealing of sealing ring 80 in seal cavity 2；
The signal regulation mechanism 4 is correspondingly arranged with the microswitch 3, and the signal wire of the microswitch 3 passes through the outlet base
Seat 5 is drawn, and is sealed and is set between the outlet pedestal 5 and the seal cavity 2；One end (first end) of the bellows 1 is close
Envelope and connect the signal regulation mechanism 4, the other end (the second end) of the bellows 1 by jointing 91 with it is lithium
Sulphur electrical equipment is connected, filled with compensation gas in the seal cavity 2.One end of the spring 61 is connected to the signal and adjusted
At the position that section mechanism 4 is connected with the bellows 1, the other end of the spring 61 is fixed by spring adjustment mechanism 63 to be connected
It is connected to the spring fixed seat 62；The spring fixed seat 62 be fixedly installed in the bellows 1 and the microswitch 3 it
Between.The signal regulation mechanism 4 is also provided with adjusting screw 41, adjusting screw 41 to adjust density monitor alarm,
Locking contact working value.The signal wire connection signal teletransmission circuit of the microswitch 3, to realize the online of sulfur hexafluoride density
Monitoring.The high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention nine also includes：Located at the only of the seal cavity
Erect the indicating value indication mechanism put.The indicating value indication mechanism includes：Movement 74, dial 75, pointer 76 and pedestal 77.It is described
Movement 74 is connected with the signal regulation mechanism 4, and the pointer 76 is installed on the movement 74 and located at the dial 75
Before, to realize during density indicating value display function, specifically density value changes, bellows 1 and spring 61 will be caused to occur position
Move, the signal regulation mechanism 4 that is displaced through of change is delivered to movement 74, and movement 74 is just by pointer 76 and dial 75, close
Angle value is shown.The high antivibration sulfur hexafluoride gas density relay of the embodiment of the present invention nine can realize gamut scope (-
0.1~0.9MPa).
Because the microswitch 3 is in the seal cavity 2, and there is sulfur hexafluoride gas in seal cavity 2, because of six
Sulfur fluoride gas is with very strong insulation and arc extinguishing ability, so the electric terminal of the technology of the present invention density monitor has very
Good electric property, using reliable, long lifespan, this is also the very big innovative point and feature of the present invention.
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, or 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 (11)
1. a kind of high antivibration sulfur hexafluoride gas density relay, it is characterised in that including：Seal cavity, bellows, fine motion are opened
Pass, signal regulation mechanism and outlet pedestal；The bellows, the microswitch and the signal regulation mechanism are located at described close
Seal in cavity；The signal regulation mechanism is correspondingly arranged with the microswitch, and the signal wire of the microswitch passes through described
Outlet pedestal is drawn, and is sealed and is set between the outlet pedestal and the seal cavity；The first end connection of the bellows is described
Signal regulation mechanism；
Wherein, the bellows first end sealing, the second end of the bellows be connected with sulfur hexafluoride electrical equipment and
The annular seal space is filled with compensation gas, or, the first end of the bellows and the second end are all sealed, the seal cavity
It is connected with sulfur hexafluoride electrical equipment and in the bellows filled with compensation gas.
2. high antivibration sulfur hexafluoride gas density relay according to claim 1, it is characterised in that also include：Spring
And spring fixed seat；
One end of the spring is connected at the position that the signal regulation mechanism is connected with the bellows, the spring
The other end is connected to the spring fixed seat；The spring fixed seat be fixedly installed in the bellows and the microswitch it
Between.
3. high antivibration sulfur hexafluoride gas density relay according to claim 2, it is characterised in that the Signal Regulation
Mechanism extends to the inside of the bellows with one end that the bellows is connected.
4. high antivibration sulfur hexafluoride gas density relay according to claim 2, it is characterised in that the spring it is another
One end is connected to the spring fixed seat by spring adjustment mechanism.
5. high antivibration sulfur hexafluoride gas density relay according to claim 1, it is characterised in that the Signal Regulation
Mechanism is provided with adjusting screw.
6. high antivibration sulfur hexafluoride gas density relay according to claim 1, it is characterised in that the outlet pedestal
Transition piece is installed by junction block to be fixedly installed in the seal cavity, or, the outlet pedestal is directly fixedly installed in
In the seal cavity.
7. high antivibration sulfur hexafluoride gas density relay according to claim 1, it is characterised in that the seal cavity
Outer wrap has heat-insulation layer.
8. high antivibration sulfur hexafluoride gas density relay according to claim 1, it is characterised in that also include：It is located at
Housing outside the seal cavity, is provided with anti-vibration pad between the seal cavity and the housing.
9. high antivibration sulfur hexafluoride gas density relay according to claim 1, it is characterised in that the microswitch
Signal wire connection signal teletransmission circuit.
10. the high antivibration sulfur hexafluoride gas density relay according to claim any one of 1-9, it is characterised in that also
Including：Located at the indicating value indication mechanism of the annular seal space body sidewall；
The indicating value indication mechanism includes：Show Baden pipe, temperature compensating element, display end seat, movement, dial, pointer and
Pedestal；One end of the display Baden pipe and one end of the temperature compensating element are both secured to the display end seat, described aobvious
Show that the other end of Baden pipe is connected on the pedestal, the other end of the temperature compensating element is by showing connecting rod and the machine
Core is connected or the other end of the temperature compensating element is directly connected with the movement, and the pointer is installed on the movement
And before the dial.
11. high antivibration sulfur hexafluoride gas density relay according to claim 1 or 2, it is characterised in that also include：
Movement, dial and pointer；
The movement is connected with the signal regulation mechanism, the pointer be installed on the movement and located at the dial it
Before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683075.9A CN105390337B (en) | 2014-10-21 | 2015-10-20 | A kind of high antivibration sulfur hexafluoride gas density relay |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014105621056 | 2014-10-21 | ||
| CN201410562105.6A CN104377077A (en) | 2014-10-21 | 2014-10-21 | High vibration resistance sulfur hexafluoride gas density relay |
| CN201510683075.9A CN105390337B (en) | 2014-10-21 | 2015-10-20 | A kind of high antivibration sulfur hexafluoride gas density relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105390337A CN105390337A (en) | 2016-03-09 |
| CN105390337B true CN105390337B (en) | 2017-11-07 |
Family
ID=52555924
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410562105.6A Pending CN104377077A (en) | 2014-10-21 | 2014-10-21 | High vibration resistance sulfur hexafluoride gas density relay |
| CN201510683075.9A Active CN105390337B (en) | 2014-10-21 | 2015-10-20 | A kind of high antivibration sulfur hexafluoride gas density relay |
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| CN201410562105.6A Pending CN104377077A (en) | 2014-10-21 | 2014-10-21 | High vibration resistance sulfur hexafluoride gas density relay |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513892A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Improved pressure alarm |
| 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 |
| CN109216106B (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 relay |
| CN107863272B (en) * | 2017-11-29 | 2021-04-30 | 上海乐研电气有限公司 | Gas density relay with warning retaining structure |
| CN107863269B (en) * | 2017-11-29 | 2021-03-02 | 上海乐研电气有限公司 | Subminiature gas density relay |
| CN107863271B (en) * | 2017-11-29 | 2021-04-16 | 上海乐研电气有限公司 | High-vibration-resistance gas density relay |
| CN107871642B (en) * | 2017-11-29 | 2021-01-08 | 上海乐研电气有限公司 | High-precision gas density relay |
| CN107808798B (en) * | 2017-11-29 | 2020-10-09 | 上海乐研电气有限公司 | Miniaturized wide-range gas density relay |
| CN107968018B (en) * | 2018-01-12 | 2023-12-08 | 上海乐研电气有限公司 | High vibration-resistant gas density relay |
| CN108493048B (en) * | 2018-04-09 | 2024-04-09 | 国网安徽省电力有限公司超高压分公司 | Vibration-resistant sulfur hexafluoride 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 |
| CN111192790A (en) * | 2020-03-11 | 2020-05-22 | 上海乐研电气有限公司 | Wide-range high-vibration-resistance gas density relay |
| CN113410090B (en) * | 2021-06-24 | 2022-10-18 | 北京京东方真空电器有限责任公司 | Vacuum relay |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204230153U (en) * | 2014-10-21 | 2015-03-25 | 上海乐研电气科技有限公司 | A kind of high antivibration sulfur hexafluoride gas density relay |
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| CN201514894U (en) * | 2009-04-20 | 2010-06-23 | 江苏省电力公司如皋市供电公司 | Isothermal testing density relay |
| CN101882532A (en) * | 2009-05-05 | 2010-11-10 | 上海乐研电气科技有限公司 | SF6-gas density relay |
| DE102010055249B4 (en) * | 2010-12-10 | 2014-04-03 | Trafag Ag | density Controller |
| CN202796728U (en) * | 2012-08-09 | 2013-03-13 | 西安华伟自控设备有限公司 | Bellows type SF6 density relay |
| CN103456561B (en) * | 2013-09-18 | 2017-01-18 | 上海乐研电气科技有限公司 | High-precision sulfur hexafluoride gas density relay |
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| CN204230153U (en) * | 2014-10-21 | 2015-03-25 | 上海乐研电气科技有限公司 | A kind of high antivibration sulfur hexafluoride gas density relay |
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