CN106548901B - A kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker - Google Patents
A kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker Download PDFInfo
- Publication number
- CN106548901B CN106548901B CN201710042770.6A CN201710042770A CN106548901B CN 106548901 B CN106548901 B CN 106548901B CN 201710042770 A CN201710042770 A CN 201710042770A CN 106548901 B CN106548901 B CN 106548901B
- Authority
- CN
- China
- Prior art keywords
- glue
- leakage
- circuit
- voltage circuitbreaker
- mending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas
Landscapes
- Gas-Insulated Switchgears (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker, including SF6High-voltage circuitbreaker main body, mounted on SF6The gas chamber of high-voltage circuitbreaker body exterior, for detecting SF6Gas leaks and controls the intelligent mending-leakage system of glue and for colloid system.A kind of SF with leak detection and leakage mending function proposed by the invention6High-voltage circuitbreaker monitors SF by infrared gas sensor6Whether arc extinguish chambers leaks, and feeds back electric signal to intelligent mending-leakage system, drives fluid sealant suction pump by control circuit, passes through fluid sealant and enter plenum interior for colloid system, in breaker SF6Sealant layer is formed on arc blow-out chamber outer wall, blocks leakage hole.Entire mending-leakage process is full-automatic, effectively raises electrical employee processing electric power SF6The efficiency of high-voltage circuitbreaker plugging operation improves traditional processing method, with conventional electric power SF6High-voltage circuitbreaker leak stopping mode, which is compared, huge advantage.
Description
Technical field
The present invention relates to SF6Breaker leak detection technology and repairing control technology are that one kind has leak detection and lets out
Reveal the SF of mending function6High-voltage circuitbreaker.
Background technology
Sulfur hexafluoride (SF6) high-voltage circuitbreaker is important electrical in power plant, substation, it is carried on a shoulder pole in electric system
Bear the dual role of control and protection.Since manufacture welding, mounting process are bad, such as there are sand holes, weld seam, crack are scarce
It falls into, in longtime running, electric power SF can be caused6SF inside high-voltage circuitbreaker6Gas permeation.SF can not be fundamentally solved at present6
The problem of circuit breaker gas leaks, gas leaks the dielectric strength that can not only reduce high-voltage circuitbreaker, and can cause sky
Gas pollutes.Under normal circumstances, SF is found by inspecting periodically6Leak case, therefore, often handle it is not prompt enough, and when letting out
When leakage gas volume fraction reaches certain value, the health of service personnel can be seriously affected or even jeopardize the life of service personnel
Life safety.Traditional leakage method for repairing and mending is by SF6After high-voltage circuitbreaker power-off, pass through SF6Retracting device, by electric power SF6High pressure
SF in breaker6Gas takes out light recycling, and is repeatedly rinsed with high pure nitrogen, is carried out breakthrough at electric welding mending-leakage using electric welding
Reason, be welded mending-leakage after treatment, welding slag, impurity are cleaned up, reuse vacuumize, high pure nitrogen rinse, finally take out again
Vacuum adds in SF6Gas completes patch work.This method for repairing and mending is complicated for operation, time-consuming, of high cost, SF6High-voltage circuitbreaker
The efficiency of plugging operation is low, and it is possible to endanger the health of service personnel.
Invention content
The purpose of the present invention is to provide a kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker leads to
It crosses and detects and repair SF automatically6High-voltage circuitbreaker gas leaks, and overcomes defect in the prior art；Structure letter of the present invention
It is single, and be easily achieved.
To achieve the above object, the present invention provides following technical solution：One kind has leak detection and leakage mending function
SF6High-voltage circuitbreaker, including SF6High-voltage circuitbreaker main body, mounted on SF6The gas chamber of high-voltage circuitbreaker body exterior, for examining
Survey SF6Gas leaks and controls the intelligent mending-leakage system of glue and for colloid system.
Further, the SF6High-voltage circuitbreaker main body includes static contact, moving contact, SF6Arc blow-out chamber outer wall, SF6Leakage
Mouthful.
Further, the gas chamber is divided into left side shell, right side shell, upper sealing ring, wherein lower sealing ring, upper sealing ring
It is divided into left side upper sealing ring, right side upper sealing ring, lower sealing ring includes left side lower sealing ring, right side lower sealing ring；Left side shell
For inside and outside double-layer structure, including gas chamber outer wall and and inner panel, left side gas chamber is separated as left side exocoel and left side inner cavity, outside left side
Chamber and left side inner cavity are interconnected by left side upper end gap, and left side shell lower end is provided with left side glue-feeder；Right side shell is interior
Outer double-layer structure, including gas chamber outer wall and and inner panel, right side gas chamber is separated as right side exocoel and right side inner cavity, right side exocoel and
Right side inner cavity is interconnected by right side upper end gap, and right side shell upper end is provided with gas outlet, is also provided with to pacify close to upper end
The annular installing port of infrared gas sensor is filled, lower end is provided with right side glue-feeder；Left side inner cavity is interconnected with right side inner cavity, left
Side exocoel is interconnected with right side exocoel；Left side shell is fastenedly connected with right side shell by screw bolt and nut, in tightening state
Under, upper sealing ring and lower sealing ring are squeezed.
Further, the intelligent mending-leakage system includes infrared gas sensor, SF6Leakage signal transmits circuit, control
Circuit transmits circuit, DC brushless motor and control DC brushless motor for glue circuit pressure sensors, for glue laminated force signal
The control signal of action transmits circuit；Infrared gas sensor passes through SF6Leakage signal is transmitted circuit and is electrically connected with control circuit,
It is electrically connected for glue circuit pressure sensors by transmitting circuit for glue laminated force signal with control circuit, DC brushless motor passes through control
Signal processed transmits circuit and is electrically connected with control circuit.
Further, it is described for colloid system include fluid sealant storage tank, inhale sebific duct, take out glue pump, total glue inlet tube, flow divider,
The left side glue inlet tube that is connected with gas chamber upper left side glue-feeder, with right side glue-feeder connects on gas chamber right side glue inlet tube；The pumping
Glue pump is coaxially connected with DC brushless motor, takes out glue pump and includes pump housing glue-feeder and pump housing gum outlet.
Further, work as SF6Arc blow-out chamber outer wall ruptures, SF6Gas passes through SF6Leakage hole enters left side inner cavity and the right side
Side inner cavity enters left side exocoel and right side exocoel by left side upper end gap and right side upper end gap；Infrared gas sensor inspection
Measure SF6Electric signal is generated, and pass through SF after gas leakage6Leakage signal transmits circuit and electric signal is transmitted to control circuit, controls
Circuit processed drives DC brushless motor to work by the way that signal is controlled to transmit circuit；DC brushless motor, which drives, takes out glue pump work, makes
Fluid sealant enters suction sebific duct from fluid sealant storage tank, through pump housing glue-feeder enter take out glue pump, and from pump housing gum outlet enter always into
Sebific duct, fluid sealant are evenly distributed to by flow divider in left side glue inlet tube and right side glue inlet tube, and pass through left side glue-feeder and the right side
Side glue-feeder enters left side inner cavity and right side inner cavity, forms colloid layer, blocks leakage hole, additional air passes through gas outlet in gas chamber
Discharge avoids plenum interior hypertonia, realizes SF6High-voltage circuitbreaker automatic leakage-repairing function.
Further, the intelligent mending-leakage system operating mode is：Infrared gas sensor detects SF6Reveal gas
Afterwards, amplifier is connected, chip and the circuit pressure sensors power supply of confession glue, control chip are driven by motor drive axle in order to control
DC brushless motor, and then drive and take out glue pump operating, fluid sealant is made to enter for glue circuit；For glue circuit pressure sensors will always into
Glue overpressure is converted to electric signal and feeds back to control chip, and control chip compares feedback voltage signal with setting value, when
It is less than setting value for glue circuit pressure sensors feedback pressure force value, control chip improves DC brushless motor by motor drive axle
Rotating speed increases swabbing pressure；When reaching setting value for glue circuit pressure sensors feedback pressure force value, control chip is driven by motor
Dynamic bridge makes direct current brushless motor speed keep stablizing, and can be adjusted for glue circuit pressure setting value by adjusting swept resistance；When letting out
After leak is plugged, SF6Gas detection signals disappear, and infrared gas sensor stops feedback electric signal, control chip and for glue
Circuit pressure sensors power off, and complete SF6The auto-mending process of high-voltage circuitbreaker；The control chip model is MC33033,
The motor drive axle model MPM3002.
Compared to the prior art, the invention has the advantages that：One kind proposed by the invention has leak detection
With the SF of leakage mending function6High-voltage circuitbreaker covers breaker SF by the gas chamber for being fastened on breaker body6Outside arc extinguish chambers
Wall monitors SF by infrared gas sensor6Whether arc extinguish chambers leaks, and feeds back electric signal to intelligent mending-leakage system, leads to
Control circuit driving fluid sealant suction pump is crossed, passes through fluid sealant and enters plenum interior for colloid system, in breaker SF6Arc extinguish chambers
Sealant layer is formed on outer wall, blocks leakage hole；And in this process, believed by pressure sensor monitoring for glue circuit pressure
Number, using control circuit, make fluid sealant simultaneously from gas chamber according to setup pressure value regulation motor working speed, and using flow divider
The left and right sides enters, and accelerates sealing speed, and leakage can be avoided to mend；Entire mending-leakage process is full-automatic, overcomes existing electric power SF6
It the problems such as complicated for operation, time-consuming, of high cost present in high-voltage circuitbreaker plugging operation, effectively raises at electrical employee
Manage electric power SF6The efficiency of high-voltage circuitbreaker plugging operation improves traditional processing method, with conventional electric power SF6High-voltage circuitbreaker
Leak stopping mode, which is compared, huge advantage.
Description of the drawings
Fig. 1 is a kind of SF with leak detection and leakage mending function in the present invention6The structural representation of high-voltage circuitbreaker
Figure.
Fig. 2 is Section A-A figure in Fig. 1.
Fig. 3 is mending-leakage circuit system schematic diagram intelligent in the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
The present invention provides a kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker, as shown in Fig. 1 ~ 3,
Including SF6High-voltage circuitbreaker main body 1, mounted on SF6Gas chamber 2 outside high-voltage circuitbreaker main body 1, for detecting SF6Gas leaks
And it controls the intelligent mending-leakage system 3 of glue and supplies colloid system 4.
The SF6High-voltage circuitbreaker main body 1 includes static contact 11, moving contact 12, SF6Arc blow-out chamber outer wall 13, SF6Leakage hole
14。
The gas chamber 2 divides for left side shell 21, right side shell 22, upper sealing ring 23, wherein lower sealing ring 24, upper sealing ring
23 points are left side upper sealing ring 231, right side upper sealing ring 232, and lower sealing ring 24 includes close under left side lower sealing ring 241, right side
Seal ring；Left side shell 21 be inside and outside double-layer structure, including gas chamber outer wall 211 and with inner panel 212, left side gas chamber is separated as left side
Exocoel 213 and left side inner cavity 214, left side exocoel 213 and left side inner cavity 214 are interconnected by left side upper end gap 215, left side
21 lower end of shell is provided with left side glue-feeder 216；Right side shell 22 is inside and outside double-layer structure, including gas chamber outer wall 221 and and inner panel
222, right side gas chamber is separated as right side exocoel 223 and right side inner cavity 224, right side exocoel 223 and right side inner cavity 224 pass through right side
Upper end gap 225 is interconnected, and shell 22 upper end in right side is provided with gas outlet 226, is also provided with to install infrared gas close to upper end
The annular installing port 227 of dependent sensor 31, lower end are provided with right side glue-feeder 228；Left side inner cavity 214 is mutual with right side inner cavity 224
Connection, left side exocoel 213 are interconnected with right side exocoel 223；Left side shell 21 passes through bolt 251 and nut with right side shell 22
252 are fastenedly connected, and under tightening state, upper sealing ring 23 and lower sealing ring 24 are squeezed.
The intelligence mending-leakage system 3 includes infrared gas sensor 31, SF6Leakage signal transmits circuit 32, control circuit
33rd, circuit 35, DC brushless motor 36 and control brush DC are transmitted for glue circuit pressure sensors 34, for glue laminated force signal
The control signal that motor 36 acts transmits circuit 37；Infrared gas sensor 31 passes through SF6Leakage signal transmits circuit 32 and control
Circuit 33 processed is electrically connected, and is electrically connected for glue circuit pressure sensors 34 by transmitting circuit 35 for glue laminated force signal with control circuit 33
It connects, DC brushless motor 36 is electrically connected by the way that signal is controlled to transmit circuit 37 with control circuit 33.
It is described for colloid system include fluid sealant storage tank 41, inhale sebific duct 42, take out glue pump 43, total glue inlet tube 44, flow divider 45,
The left side glue inlet tube 46 that is connected with 2 upper left side glue-feeder 216 of gas chamber, with right side glue-feeder 228 connects on gas chamber 2 right side into glue
Pipe 47；The pumping glue pump 43 is coaxially connected with DC brushless motor 36, takes out glue pump 43 and includes pump housing glue-feeder 431 and pump housing plastic emitting
Mouth 432.
Work as SF6Arc blow-out chamber outer wall 13 ruptures, SF6Gas passes through SF6Leakage hole 14 enters left side inner cavity 214 and right side
Inner cavity 224 enters left side exocoel 213 and right side exocoel 223 by left side upper end gap 215 and right side upper end gap 225；It is infrared
Gas sensor 31 detects SF6Electric signal is generated, and pass through SF after gas leakage6Leakage signal transmits circuit 32 by electric signal
Control circuit 33 is transmitted to, control circuit 33 drives DC brushless motor 36 to work by the way that signal is controlled to transmit circuit 37；Direct current
Brushless motor 36, which drives, takes out 43 work of glue pump, and fluid sealant is made to enter from fluid sealant storage tank 41 and inhales sebific duct 42, through pump housing glue-feeder
431 enter pumping glue pump 43, and enter total glue inlet tube 44 from pump housing gum outlet 432, and fluid sealant is evenly distributed to by flow divider 45
In left side glue inlet tube 46 and right side glue inlet tube 47, and pass through left side glue-feeder 216 and the entrance of right side glue-feeder 228 left side inner cavity
214 and right side inner cavity 224, colloid layer is formed, blocks leakage hole 14, additional air is discharged by gas outlet 226 in gas chamber 2, is kept away
Exempt from plenum interior hypertonia, realize SF6High-voltage circuitbreaker automatic leakage-repairing function.
3 working method of intelligence mending-leakage system is：Infrared gas sensor 31 detects SF6After revealing gas, make to put
Big device 331 is connected, and chip 332 and confession glue circuit pressure sensors 34 are powered in order to control, and control chip 332 passes through motor drive axle
333 driving DC brushless motors 36, and then drive and take out 43 operating of glue pump, fluid sealant is made to enter for glue circuit；For glue circuit pressure
Pressure in total glue inlet tube 44 is converted to electric signal and feeds back to control chip 332 by sensor 34, controls chip 332 by feedback voltage
Signal is compared with setting value, and when being less than setting value for 34 feedback pressure force value of glue circuit pressure sensors, control chip 332 passes through
Motor drive axle 333 improves 36 rotating speed of DC brushless motor, increases swabbing pressure；When for 34 feedback pressure of glue circuit pressure sensors
Force value reaches setting value, and control chip 332 makes 36 rotating speed of DC brushless motor keep stablizing by motor drive axle 333, for glue
Circuit pressure setting value can be adjusted by adjusting swept resistance 334；After leakage hole 14 is plugged, SF6Gas detection signals disappear
It loses, infrared gas sensor 31 stops feedback electric signal, controls chip 332 and is powered off for glue circuit pressure sensors 34, is completed
SF6The auto-mending process of high-voltage circuitbreaker；The control 332 model MC33033 of chip, 333 type of motor drive axle
Number be MPM3002.
Using technical solution of the present invention or those skilled in the art under the inspiration of technical solution of the present invention, if
Similar technical solution is counted out, and reaches above-mentioned technique effect, is to fall into protection scope of the present invention.
Claims (3)
1. a kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker, including SF6High-voltage circuitbreaker main body, installation
In SF6The gas chamber of high-voltage circuitbreaker body exterior, for detecting SF6Gas leak and control glue intelligent mending-leakage system and
For colloid system；
The SF6High-voltage circuitbreaker main body includes static contact, moving contact, SF6Arc blow-out chamber outer wall, SF6Leakage hole；
The gas chamber is divided into left side shell, right side shell, upper sealing ring, lower sealing ring, and it is upper close to be divided into left side for wherein upper sealing ring
Seal ring, right side upper sealing ring, lower sealing ring include left side lower sealing ring, right side lower sealing ring；Left side shell is inside and outside two layers of knot
Structure, including gas chamber outer wall and and inner panel, left side gas chamber is separated as left side exocoel and left side inner cavity, left side exocoel and left side inner cavity
It is interconnected by left side upper end gap, left side shell lower end is provided with left side glue-feeder；Right side shell is inside and outside double-layer structure, is wrapped
Include gas chamber outer wall and and inner panel, right side gas chamber is separated as right side exocoel and right side inner cavity, right side exocoel and right side inner cavity pass through
Right side upper end gap is interconnected, and right side shell upper end is provided with gas outlet, is also provided with close to upper end and is passed for installing infrared air-sensitive
The annular installing port of sensor, lower end are provided with right side glue-feeder；Left side inner cavity is interconnected with right side inner cavity, left side exocoel and right side
Exocoel is interconnected；Left side shell is fastenedly connected with right side shell by screw bolt and nut, under tightening state, upper sealing ring and
Lower sealing ring is squeezed；
The intelligence mending-leakage system includes infrared gas sensor, SF6Leakage signal is transmitted circuit, control circuit, is pressed for glue circuit
Force snesor, the control signal that circuit, DC brushless motor and control DC brushless motor action are transmitted for glue laminated force signal
Transmit circuit；Infrared gas sensor passes through SF6Leakage signal is transmitted circuit and is electrically connected with control circuit, is passed for glue circuit pressure
Sensor is electrically connected by transmitting circuit for glue laminated force signal with control circuit, and DC brushless motor is by controlling signal to transmit circuit
It is electrically connected with control circuit；
It is described for colloid system include fluid sealant storage tank, inhale sebific duct, take out glue pump, total glue inlet tube, flow divider and gas chamber upper left side into
The left side glue inlet tube of Jiao Kou connections, on gas chamber on the right side of the right side glue inlet tube that connects of glue-feeder；The pumping glue pump and brush DC
Motor coaxle connects, and takes out glue pump and includes pump housing glue-feeder and pump housing gum outlet.
2. a kind of SF with leak detection and leakage mending function according to claim 16High-voltage circuitbreaker works as SF6It blows
Arc chamber outer wall ruptures, SF6Gas passes through SF6Leakage hole enters left side inner cavity and right side inner cavity, by left side upper end gap and
Right side upper end gap enters left side exocoel and right side exocoel；Infrared gas sensor detects SF6Telecommunications is generated after gas leakage
Number, and pass through SF6Leakage signal transmits circuit and electric signal is transmitted to control circuit, and control circuit is by controlling signal transfer line
Road driving DC brushless motor work；DC brushless motor, which drives, takes out glue pump work, and fluid sealant is made to enter from fluid sealant storage tank
Sebific duct is inhaled, enters through pump housing glue-feeder and takes out glue pump, and enter total glue inlet tube from pump housing gum outlet, fluid sealant is averaged by flow divider
It is assigned in left side glue inlet tube and right side glue inlet tube, and passes through left side glue-feeder and right side glue-feeder enters left side inner cavity and right side
Inner cavity forms colloid layer, blocks leakage hole, and additional air is discharged by gas outlet in gas chamber, avoids plenum interior hypertonia,
Realize SF6High-voltage circuitbreaker automatic leakage-repairing function.
3. a kind of SF with leak detection and leakage mending function according to claim 16High-voltage circuitbreaker, the intelligence
Can mending-leakage system operating mode be：Infrared gas sensor detects SF6After revealing gas, amplifier is connected, in order to control core
Piece and for the power supply of glue circuit pressure sensors, control chip drives DC brushless motor by motor drive axle, and then drives and take out
Glue pump operating, makes fluid sealant enter for glue circuit；Pressure in total glue inlet tube is converted into electric signal for glue circuit pressure sensors
Control chip is fed back to, feedback voltage signal with setting value is compared, fed back when for glue circuit pressure sensors by control chip
Pressure value is less than setting value, and control chip improves direct current brushless motor speed by motor drive axle, increases swabbing pressure；Work as confession
Glue circuit pressure sensors feedback pressure force value reaches setting value, and control chip makes direct current brushless motor speed by motor drive axle
It keeps stablizing, can be adjusted for glue circuit pressure setting value by adjusting swept resistance；After leakage hole is plugged, SF6Gas is examined
Blackout is surveyed, infrared gas sensor stops feedback electric signal, controls chip and for the power-off of glue circuit pressure sensors, completes
SF6The auto-mending process of high-voltage circuitbreaker；It is described to control chip model as MC33033, the motor drive axle model
MPM3002。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042770.6A CN106548901B (en) | 2017-01-20 | 2017-01-20 | A kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042770.6A CN106548901B (en) | 2017-01-20 | 2017-01-20 | A kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106548901A CN106548901A (en) | 2017-03-29 |
| CN106548901B true CN106548901B (en) | 2018-07-10 |
Family
ID=58398627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710042770.6A Active CN106548901B (en) | 2017-01-20 | 2017-01-20 | A kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106548901B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289189A (en) * | 2017-07-19 | 2017-10-24 | 防城港市港口区晶通科技有限公司 | The system of leakage in a kind of on-line checking butterfly valve |
| CN108612953A (en) * | 2018-05-08 | 2018-10-02 | 保定天威保变电气股份有限公司 | A kind of method for blocking of electric power transformer insulated cooling media leaks point |
| CN112768286B (en) * | 2021-01-22 | 2021-09-28 | 南京普瑞电力科技有限公司 | SF6 high-voltage circuit breaker with leakage detection and leakage repair functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024609A (en) * | 2009-09-18 | 2011-04-20 | 杭州市电力局 | Method and device for blocking leakage of sulfur hexafluoride |
| CN104821253A (en) * | 2015-05-20 | 2015-08-05 | 国家电网公司 | Online plugging device for power SF6 high-voltage circuit breaker with air-tight chamber and method |
| CN205002936U (en) * | 2015-10-12 | 2016-01-27 | 国网新疆电力公司检修公司 | Protection device suitable for gaseous leak source monitoring of sulfur hexafluoride |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000139009A (en) * | 1998-10-30 | 2000-05-16 | Saginomiya Seisakusho Inc | Pressure monitoring device for electrical insulating gas |
-
2017
- 2017-01-20 CN CN201710042770.6A patent/CN106548901B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024609A (en) * | 2009-09-18 | 2011-04-20 | 杭州市电力局 | Method and device for blocking leakage of sulfur hexafluoride |
| CN104821253A (en) * | 2015-05-20 | 2015-08-05 | 国家电网公司 | Online plugging device for power SF6 high-voltage circuit breaker with air-tight chamber and method |
| CN205002936U (en) * | 2015-10-12 | 2016-01-27 | 国网新疆电力公司检修公司 | Protection device suitable for gaseous leak source monitoring of sulfur hexafluoride |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106548901A (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106548901B (en) | A kind of SF with leak detection and leakage mending function6High-voltage circuitbreaker | |
| CN108620377B (en) | Online airtight belt cleaning device of oil well operation | |
| CN103207051B (en) | Pipeline air-leakage test packoff, pipeline air tightness detection system and method | |
| CN114017682B (en) | Safety protection device for detecting gas leakage of petroleum and natural gas pipeline | |
| CN106968679B (en) | A kind of high hydraulic pressure tail sealing emergency system | |
| CN205579027U (en) | Light curing device is restoreed to old pipeline inside lining | |
| CN103983538B (en) | SF 6the SF of electrical equipment 6the method of work of moisture, density measuring equipment | |
| CN105003437B (en) | The pure electric coach control system and method for anti-inflating pump emulsification of lubricant | |
| CN105736892A (en) | Old pipe lining repairing photocuring device and application of same | |
| CN115579750B (en) | Power distribution cabinet based on line protection | |
| CN102680049A (en) | Vacuum oil injection monitoring device of transformer | |
| CN203463144U (en) | Automatic gas drainage controlling and monitoring system | |
| CN108756283B (en) | Cutting and grouting device for repairing wall cracks | |
| CN104835628B (en) | With the power high voltage oil-filled mutual inductor device for plugging and its application method of seal closure | |
| CN108019052A (en) | A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending | |
| CN104816272A (en) | Hot-line work bolt fastening device | |
| CN102359852A (en) | Leak detection method for electrical heating tube orifice of inner container of solar water heater | |
| CN104821253A (en) | Online plugging device for power SF6 high-voltage circuit breaker with air-tight chamber and method | |
| CN111013906B (en) | Production spraying device based on building energy-saving plate | |
| CN107883101A (en) | A kind of electric smelting bypasses saddle type | |
| CN207324190U (en) | A kind of plate and frame filter press is into mud system | |
| CN114279937B (en) | Nondestructive testing device for permeability resistance of concrete structure | |
| CN104295886B (en) | Efficient SF6 gas processing tool | |
| CN205772056U (en) | A kind of cigarette machine is automatically for colloid system | |
| CN217735512U (en) | Be used for slip casting construction drill way sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |