CN107102258A - Density monitor capacity checking device - Google Patents
Density monitor capacity checking device Download PDFInfo
- Publication number
- CN107102258A CN107102258A CN201710253233.6A CN201710253233A CN107102258A CN 107102258 A CN107102258 A CN 107102258A CN 201710253233 A CN201710253233 A CN 201710253233A CN 107102258 A CN107102258 A CN 107102258A
- Authority
- CN
- China
- Prior art keywords
- valve
- checking device
- capacity checking
- density monitor
- verification
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to SF6The technical field of equipment, discloses density monitor capacity checking device, including density monitor and capacity checking device, and density monitor has valve body and is connected to the verification inflatable interface of valve body, and verify inflatable interface is internally provided with valve element；Capacity checking device includes set casing, be connected with the internal whorl of set casing rotating bar, the connector and the needle-valve that is arranged in connector for being arranged at rotation boom end, connector are threadedly coupled with verifying inflatable interface, and needle-valve is connected to valve element.In this way, be connected by capacity checking device with verification inflatable interface, and the capacity checking device small volume and less weight, and rotatable rotating bar can control needle-valve to can control the power of valve element, the problem of effectively avoiding that valve element can be damaged.
Description
Technical field
The present invention relates to SF6The technical field of equipment, more particularly to density monitor capacity checking device.
Background technology
Density monitor is generally SF6(sulfur hexafluoride) density monitor is monitoring with SF6Device interior SF6Gas pressure
Visual plant, wherein SF6Equipment is to use SF6Gas as arc extinguishing dielectric equipment.Needed in routine use often
To SF6Density monitor is checked, and main check project is：The sending of alarm, the equipment acceptance of block signal and pre- trial work
The job that remaining in work must be carried out, to SF6Density monitor carries out check and ensure that equipment safety stable operation.
In the prior art, SF is checked6Density monitor works, it is necessary first to closes verification valve, disconnects SF6Density relay
Device and SF6The gas piping connection of equipment；Then the rain-proof cover of inflation inlet is opened, the valve element in inflation inlet is withstood with lead screw,
Tap lead screw gradually to release the gas in SF6 density monitor pressure gauges with hammer, so that SF6 density monitors
Internal pressure is gradually lowered to alarm and locking pressure value, sends alarm and block signal, and contact verification letter with monitoring backstage
Number whether correctly send, realize the checking work of SF6 density monitor signals.But, during practical operation, use hammer
Tap the bad grasp of the dynamics of lead screw, it is impossible to release the gas into the pressure value of just transmit messages alert and locking；Or release gas
Body is more, pressure in SF6 density monitors is once reduced to below locking pressure, it is impossible to individually to send alarm signal, reduction
Operating efficiency.The method of lead screw deflation is tapped it is also possible to damaging the valve element in inflation inlet using hammer, causes equipment to leak
Gas.
The content of the invention
It is an object of the invention to provide a kind of density monitor capacity checking device, it is intended to solves hammer in the prior art and taps
The bad grasp of the dynamics of lead screw, it is impossible to which SF is released in control6The problem of amount of gas can also damage valve element.
It is described close the embodiments of the invention provide density monitor capacity checking device, including density monitor and capacity checking device
Degree relay has valve body and is connected to the verification inflatable interface of the valve body, and the verification inflatable interface is internally provided with valve
Core；The capacity checking device include set casing, be connected with the internal whorl of the set casing rotating bar, be arranged at the rotating bar
The connector of end and the needle-valve being arranged in the connector, the connector are threadedly coupled with the verification inflatable interface,
The needle-valve is connected to the valve element.
Further, be provided with adjustment barrel between the set casing and the rotating bar, the adjustment barrel respectively with it is described
Set casing and the rotating bar rotate connection.
Further, the needle-valve is internally provided with the first stomata extended to inside the rotating bar, the rotation
It is provided with to be provided with the second stomata being connected with first stomata, the adjustment barrel on bar and is mutually led with second stomata
The 3rd logical stomata.
Further, adapter is provided between the connector and the verification inflatable interface, the adapter includes
The first connecting portion being connected with the connector and the second connecting portion being connected with the verification inflatable interface, described first
The through hole passed through for the needle-valve is provided between connecting portion and the second connecting portion.
Further, the second connecting portion is internally provided with bellmouth, and the second connecting portion is close to described
The cross-sectional area of the side of one connecting portion is more than or equal to the horizontal stroke of side of the second connecting portion away from the first connecting portion
Sectional area.
Further, the inside of the connector and/or the adapter are internally provided with sealing ring.
Further, the one end of the rotating bar away from the connector is provided with rotary handle.
Further, being internally provided with the outside of cavity, and the valve body for the valve body is connected with relay interface, electricity
Air cock interface and valve switch mouthful, the verification inflatable interface are connected by the first airway with the cavity, the valve
Door switch mouthful is connected by the second airway with the cavity.
Further, the valve element include abutted against with the needle-valve regulation head, be connected it is described adjust head piston rod
With the connected entrance for being arranged at the piston rod end, the connected entrance is conducted with first airway.
Further, the end sleeve of the verification inflatable interface is provided with closure.
Based on above-mentioned technical proposal compared with prior art, the density monitor capacity checking device that the embodiment of the present invention is proposed,
Capacity checking device is installed on the verification inflatable interface of density monitor, i.e., connector is set in verification inflatable interface, it is fixed
Shell is relatively fixed, and rotates the rotating bar in the inside of set casing so that the junction of connector and verification inflatable interface, face
Product constantly increase, now needle-valve moves closer to valve element and abuts valve element so that the SF inside density monitor6Gas fills from verification
Discharge, be connected by capacity checking device with verification inflatable interface in gas interface, and the capacity checking device small volume and less weight, and can rotate
Rotating bar needle-valve can be controlled to can control the power of valve element, the problem of effectively avoiding that valve element can be damaged.
Brief description of the drawings
Fig. 1 is the Section View for the density monitor capacity checking device that the embodiment of the present invention is proposed；
Fig. 2 is the structural representation of the capacity checking device of Fig. 1 Midst density relay capacity checking devices；
Fig. 3 is the top view of capacity checking device in Fig. 2；
Fig. 4 is the Section View of capacity checking device in Fig. 2；
Fig. 5 is the structural representation of capacity checking device and adapter in the density monitor capacity checking device that the embodiment of the present invention is proposed
Figure；
Fig. 6 is the structural representation of adapter in Fig. 5；
Fig. 7 is one of Section View of capacity checking device and adapter in Fig. 5；
Fig. 8 is the two of the Section View of capacity checking device and adapter in Fig. 5；
Fig. 9 is the Section View of the density monitor of Fig. 1 Midst density relay capacity checking devices.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.
Only it is phase each other in addition, it should also be noted that, the orientation term such as left and right, upper and lower in the embodiment of the present invention
To concept or using the normal operating condition of product as reference, and it should not be regarded as restrictive.Below in conjunction with tool
Realization of the body embodiment to the present invention is described in detail.
As shown in fig. 1, the embodiment of the present invention proposes density monitor capacity checking device, including density monitor 1 and school
Nuclear device 2, density monitor 1 has valve body 11 and is connected to the verification inflatable interface 12 of valve body 11, verification inflatable interface 12
It is internally provided with valve element 13；Capacity checking device 2 include set casing 21, be connected with the internal whorl of set casing 21 rotating bar 22, set
The connector 23 for being placed in the end of rotating bar 22 and the needle-valve 24 being arranged in connector 23, and connector 23 and verification inflatable interface
12 threaded connections, needle-valve 24 is connected to valve element 13.
Capacity checking device 2 is installed on the verification inflatable interface 12 of density monitor 1, i.e., connector 23 is set in verification
Inflatable interface 12, set casing 21 is relatively fixed, rotate the inside of set casing 21 rotating bar 22 so that connector 23 with
The junction of inflatable interface 12 is verified, area constantly increases, and now needle-valve 24 moves closer to valve element 13 and abuts valve element 13 so that
SF inside density monitor 16Gas is discharged out of verification inflatable interface 12, passes through capacity checking device 2 and verification inflatable interface 12
It is connected, and the small volume and less weight of capacity checking device 2, and rotatable rotating bar 22 can control needle-valve 24 can to the power of valve element 13
Control, the problem of effectively avoiding that valve element 13 can be damaged.
Specifically, density monitor 1 can use various types of SF6Density monitor 1 or other kinds of gas
Relay, capacity checking device 2 is arranged on the verification inflatable interface 12 of density monitor 1, and the outside of verification inflatable interface 12 is set
There is external screw thread, the inwall of connector 23 is provided with internal thread, and internal thread socket-connects with external screw thread.Rotating bar 22 and set casing 21
It is connected through a screw thread, rotates the insertion rotating bar 22 of set casing 21, enable to rotating bar 22 relative to set casing 21 and school
The movement that relative position occurs for inflatable interface 12 is tested, until when needle-valve 24 is connected to valve element 13, rotating bar effectively can be passed through
22 pairs of connectors 23 and verification inflatable interface 12 are controlled.
Further, as shown in Fig. 2 to Fig. 4, adjustment barrel 25, adjustment barrel are provided between set casing 21 and rotating bar 22
25 are connected with set casing 21 and the rotation of rotating bar 22 respectively.Specifically, adjustment barrel 25 be arranged on set casing 21 and rotating bar 22 it
Between, wherein adjustment barrel 25 can be relatively rotated with the rotating bar 22 that rotates in of set casing 21, and adjustment barrel 25 and set casing 21
Between can also relatively rotate.
Further, needle-valve 24 is internally provided with the first stomata 241 extended to inside rotating bar 22, rotating bar 22
It is provided with and is provided with what is be conducted with the second stomata 242 in the second stomata 242 being connected with the first stomata 241, adjustment barrel 25
3rd stomata 251.Specifically, the interface being conducted with the first stomata 241 is provided with valve element 13, and the one of the first stomata 241
End is arranged on the inside of density monitor 1, and the other end is arranged on the inside of rotating bar 22, can will be close by the first stomata 241
Spend in gas communication to the rotating bar 22 inside relay 1, the second stomata 242 and the first stomata 241 are turned on all the time, adjustment barrel 25
The rotation of bar 22 is relatively rotated, that is, the 3rd stomata 251 is driven relative to the rotation of the second stomata 242, so as to control the 3rd stomata 251
Whether it is conducted with the second stomata 242, and can be according to the pore size control turned between the 3rd stomata 251 and the second stomata 242
Discharge the speed of gas.Certainly, according to actual conditions and real needs, the 3rd stomata 251 can also be arranged on set casing 21,
The rotation for being relatively fixed shell 21 with rotating bar 22 controls outlet speed, does not make unique restriction herein.
Further, as shown in Fig. 5 to Fig. 7, adapter 3 is provided between connector 23 and verification inflatable interface 12,
Adapter 3 includes the first connecting portion 31 being connected with connector 23 and the second connecting portion being connected with verification inflatable interface 12
32, the through hole 33 passed through for needle-valve 24 is provided between first connecting portion 31 and second connecting portion 32.Due to density monitor 1
Model is varied, therefore the size of verification inflatable interface 12 is also different, in order that disclosure satisfy that in capacity checking device 2 a variety of
Various sizes of verification inflatable interface 12, therefore adapter 3 is set between connector 23 and verification inflatable interface 12.First connects
Socket part 31 is connected with connector 23, and the outside of first connecting portion 31 is provided with external screw thread, inside the external screw thread and contiguous block
Internal thread is engaged；Second connecting portion 32 is connected with verification inflatable interface 12, and the inner side of first connecting portion 31 is provided with interior spiral shell
Line, the internal thread is engaged with verifying the external screw thread of inflatable interface 12；Needle-valve 24 extends to second connecting portion 32 through through hole 33
Inside, and abutted against with valve element 13.Adapter 3 it is simple in construction, change with the size of second connecting portion 32 so as to coordinating
The verification inflatable interface 12 of a variety of different sizes and size so that the capacity checking device 2 can be adapted to the density relay of Multiple Type
Device 1.
Further, as shown in Figure 8, second connecting portion 32 is internally provided with bellmouth, and second connecting portion 32 leans on
The cross-sectional area of the side of nearly first connecting portion 31 is more than or equal to side of the second connecting portion 32 away from first connecting portion 31
Cross-sectional area.Specifically, the internal thread inside the second connecting portion 32 is engaged with verifying the external screw thread of inflatable interface 12, second
The internal holes of connecting portion 32 are bellmouth, that is, the size for verifying inflatable interface 12 is larger then with second connecting portion 32 away from the first company
The side threaded connection of socket part 31；The size for verifying inflatable interface 12 is smaller then with second connecting portion 32 close to first connecting portion 31
Side threaded connection.Therefore, the connection between density monitor 1 and capacity checking device 2 can be changed without the premise of adapter 3
The lower verification inflatable interface 12 for adapting to a variety of different sizes.
Further, as shown in figure 3, the inside of connector 23 and/or adapter 3 are internally provided with sealing ring 4.Specifically
, when by the connection verification inflatable interface 12 of adapter 3, sealing ring 4 is set in the inside of adapter 3 or in connector 23
Inside and the inside of adapter 3 be respectively provided with sealing ring 4；When directly by the connection verification inflatable interface 12 of connector 23,
The inside of connector 23 is respectively provided with sealing ring 4.Sealing ring 4 is set effectively to prevent gas leakage from causing air pollution, and
It can facilitate and be controlled by controlling to adjust the speed of 25 pairs of outlets of cylinder.
Further, the one end of rotating bar 22 away from connector 23 is provided with rotary handle 26.By 26 pairs of rotary handle
The rotation of rotating bar 22 is controlled, and not only extends the length of rotating bar 22, and facilitates nip rotation bar 22, wherein rotating hand
The outside of handle 26 is provided with anti-skidding decorative pattern.
Further, as shown in Fig. 1 and Fig. 9, valve body 11 is internally provided with cavity 14, and the outside of valve body 11 is connected with
Relay interface 15, electric switch interface 17 and valve switch mouthfuls 16, and verify inflatable interface 12 and pass through the first airway 121
It is connected with cavity 14, valve switch mouthful 16 is connected by the second airway 161 with cavity 14.Specifically, inside valve body 11
It is filled with SF6Gas or other gas, the lower surface of valve body 11 are provided with relay interface 15, the relay interface 15 be used for
Relay (not shown) connect, the right side wall of valve body 11 be provided with electric switch interface 17, the electric switch interface 17 be used for it is electric
Switch (not shown) connects, and the left side wall of valve body 11 is provided with verification inflatable interface 12, and the verification inflatable interface 12 is used to fill when examining
Gas or deflation；The upper surface of valve body 11 is provided with valve switch mouthful 16, and the inside of valve body 11 is provided with cavity 14, relay interface 15, electricity
Air cock interface 17, verification inflatable interface 12 are connected with valve switch mouthful 16 by cavity 14.Verify the interior of inflatable interface 12
Portion is provided with a passage 122, and valve element 13 is arranged on the inside of passage 122, and the gas in cavity 14 is avoided for blocking channel 122
Effusion.
Further, valve element 13 includes with needle-valve 24 is abutted against regulation is first 131, be connected adjust first 131 piston rod 132
With the connected entrance 133 for being arranged at the end of piston rod 132, connected entrance 133 is conducted with the first airway 121.Specifically, regulation head
131 are located at valve element 13 close to the side of needle-valve 24, for being engaged with needle-valve 24, wherein, regulation first 131 be internally provided with to
Interface 1331, the inside that needle-valve 24 is connected to abutting mouth 1331 can limit the movement of needle-valve 24, and valve element 13 will not be caused
Abrasion.Piston rod 132 is arranged in the passage 122 inside verification inflatable interface 12, can be sealed passage 122, only will even
When the airway 121 of port 133 and first is abutted against, gas can just be discharged out of cavity 14.It is arranged with piston rod 132
At least two sealing rings 1321, using dual-seal technology, it is ensured that the sealing of whole system, it is ensured that reliability service.
It is preferred that, relay interface 15 is connected with cavity 14 by the 3rd airway 151, electric switch interface 17 and sky
Chamber 14 is connected by the 4th airway 171, and the 3rd airway 151 and the 4th airway 171 can be controlled whether to lead
It is logical.The passage 122 being provided between electric switch interface 17 and valve body 11 inside a non-return valve 162, verification inflatable interface 12 is remote
Side from valve switch mouthful 16 is provided with for stopping that valve element 13 moves out the back-up ring 18 of passage 122.
Further, as shown in figure 9, the end sleeve of verification inflatable interface 12 is provided with closure 19.The inside of closure 19
It is provided with internal thread and is engaged with the external screw thread outside verification inflatable interface 12, with reference to closure 19 and multiple sealing rings 1321
Verification inflatable interface 12 is sealed, it is ensured that reliable sealing, in normal operation state, can effectively avoid gas
Leakage, when needing to be verified or being inflated, removes closure 19.
During normal operating conditions, side of the valve element 13 away from valve switch mouthful 16 is flushed with back-up ring 18, now, connected entrance
133 and first airway 121 be not turned on, that is, switch air inlet gas circuit with gas density relay 1 and with the phase of the 4th airway 171
Logical non-return valve 162 is communicated.
When verification or replacing gas density relay 1, as long as first backing out closure 19, mouth is switched with screwdriver control valve
16 cause the 3rd airway 151 to be not communicated with density monitor 1, and the non-return valve 162 that communicates of the 4th airway 171 is not phase
Logical, i.e., the inside of cavity 14 is between the gas inside cut-off state, density monitor 1 and cavity 14 and separated.Then high-ranking officers
Nuclear device 2 is connected with density monitor 1, in Fig. 1 states, now, connector 23 or adapter 3 and verification inflatable interface
12 threaded connections, rotate rotary handle 26 and cause rotating bar 22 to be relatively fixed shell 21 and rotate, that is, drive needle-valve 24 to be moved to valve element 13
It is dynamic, abutted against until needle-valve 24 promotes valve element 13 to move forward to the first airway 121, now gas can both be exported, and
The speed of outlet is controlled by controlling to adjust cylinder 25.After verification or replacing gas density relay 1 are finished, opposite direction turns rotation
Handle 26 so that side of the valve element 13 away from first passage 122 is flushed with back-up ring 18, and the capacity checking device 2 is removed, then will
Closure 19 is screwed on and tightened, it is ensured that sealing can.So whole verification or during changing density monitor 1, just without
Dismounting departs from SF6 gas density is relay 1 or plinth.Effective avoid taps the dynamics of valve element 13 not using hammer
It is good to grasp, it is impossible to which that SF is released in control6The problem of amount of gas can also damage valve element 13, is the operation side of bringing of electric power overhaul personnel
Just, it is ensured that the safe handling of SF6 electrical equipments.
In order to more ensure the sealing property of the device, groove is additionally provided with the relay interface 15 of device, and recessed
1 seal 152 is set on groove, and 1 seal 152 more ensure that close between relay interface 15 and SF6 gas density is relay 1
Envelope, it is therefore an objective to increase flat seal, it is ensured that the sealing of whole device, it is ensured that reliability service；Can also be in electric switch interface 17
Locate the interior grooves set, and be also provided with groove seal 172, it is ensured that the sealing of whole device, it is ensured that reliability service.
Above example, the only specific embodiment of the invention, but protection scope of the present invention is not limited thereto, it is any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in, replaced
Change and improve etc., these modifications, replacement and improvement should be all included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be defined by scope of the claims.
Claims (10)
1. density monitor capacity checking device, including density monitor and capacity checking device, it is characterised in that：
The density monitor has valve body and is connected to the verification inflatable interface of the valve body, the verification inflatable interface it is interior
Portion is provided with valve element；
The capacity checking device include set casing, be connected with the internal whorl of the set casing rotating bar, be arranged at the rotation
The connector of boom end and the needle-valve being arranged in the connector, the connector connect with the verification inflatable interface screw thread
Connect, the needle-valve is connected to the valve element.
2. density monitor capacity checking device as claimed in claim 1, it is characterised in that：The set casing and the rotating bar it
Between be provided with adjustment barrel, the adjustment barrel rotates with the set casing and the rotating bar be connected respectively.
3. density monitor capacity checking device as claimed in claim 2, it is characterised in that：The needle-valve is internally provided with extension
The second stomata being connected with first stomata is provided with the first stomata inside to the rotating bar, the rotating bar,
The 3rd stomata being conducted with second stomata is provided with the adjustment barrel.
4. density monitor capacity checking device as claimed in claim 1, it is characterised in that：The connector and verification inflation
Be provided with adapter between interface, the adapter include the first connecting portion being connected with the connector and with the verification
The second connecting portion that inflatable interface is connected, is provided between the first connecting portion and the second connecting portion for the needle-valve
The through hole passed through.
5. density monitor capacity checking device as claimed in claim 4, it is characterised in that：The inside of the second connecting portion is set
There is bellmouth, and cross-sectional area of the second connecting portion close to the side of the first connecting portion is more than or equal to described second
The cross-sectional area of side of the connecting portion away from the first connecting portion.
6. density monitor capacity checking device as claimed in claim 4, it is characterised in that：The inside of the connector and/or institute
That states adapter is internally provided with sealing ring.
7. density monitor capacity checking device as claimed in claim 1, it is characterised in that：The rotating bar is away from the connector
One end be provided with rotary handle.
8. density monitor capacity checking device as claimed in claim 1, it is characterised in that：The valve body is internally provided with sky
Relay interface, electric switch interface and valve switch mouthful, the verification inflatable interface are connected with the outside of chamber, and the valve body
It is connected by the first airway with the cavity, the valve switch mouthful is connected by the second airway with the cavity.
9. density monitor capacity checking device as claimed in claim 8, it is characterised in that：The valve element includes and the needle-valve phase
The regulation head of abutting, the piston rod of the connection regulation head and the connected entrance for being arranged at the piston rod end, the connected entrance
It is conducted with first airway.
10. density monitor capacity checking device as claimed in claim 1, it is characterised in that：The end of the verification inflatable interface
It is arranged with closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253233.6A CN107102258B (en) | 2017-04-18 | 2017-04-18 | Density relay checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253233.6A CN107102258B (en) | 2017-04-18 | 2017-04-18 | Density relay checking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107102258A true CN107102258A (en) | 2017-08-29 |
| CN107102258B CN107102258B (en) | 2023-08-15 |
Family
ID=59656737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710253233.6A Active CN107102258B (en) | 2017-04-18 | 2017-04-18 | Density relay checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107102258B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637258A (en) * | 2020-06-01 | 2020-09-08 | 中国南方电网有限责任公司超高压输电公司大理局 | Portable needle type exhaust joint and sulfur hexafluoride density relay checking method |
| CN114705358A (en) * | 2022-03-02 | 2022-07-05 | 贵州电网有限责任公司 | Auxiliary checking device |
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| CN2870137Y (en) * | 2005-10-25 | 2007-02-14 | 苏丽芳 | Contact base for checking gas density relay |
| CN202049901U (en) * | 2011-02-21 | 2011-11-23 | 中国石油化工集团公司 | Disassembly-free check joint of density relay |
| WO2013139421A1 (en) * | 2012-03-20 | 2013-09-26 | Rwe Deutschland Ag | Method for testing gas-insulated electrical high-voltage equipment, particularly for testing an sf6-filled high-voltage circuit breaker, and circuit arrangement comprising at least one electrical high-voltage device with an insulating gas filling |
| CN104747759A (en) * | 2015-02-05 | 2015-07-01 | 上海上芃电气有限公司 | Assembly valve facilitating verification of sulfur hexafluoride gas density relay |
| CN206638786U (en) * | 2017-04-18 | 2017-11-14 | 国网河北省电力公司衡水供电分公司 | Density monitor capacity checking device |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2870137Y (en) * | 2005-10-25 | 2007-02-14 | 苏丽芳 | Contact base for checking gas density relay |
| CN202049901U (en) * | 2011-02-21 | 2011-11-23 | 中国石油化工集团公司 | Disassembly-free check joint of density relay |
| WO2013139421A1 (en) * | 2012-03-20 | 2013-09-26 | Rwe Deutschland Ag | Method for testing gas-insulated electrical high-voltage equipment, particularly for testing an sf6-filled high-voltage circuit breaker, and circuit arrangement comprising at least one electrical high-voltage device with an insulating gas filling |
| CN104747759A (en) * | 2015-02-05 | 2015-07-01 | 上海上芃电气有限公司 | Assembly valve facilitating verification of sulfur hexafluoride gas density relay |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637258A (en) * | 2020-06-01 | 2020-09-08 | 中国南方电网有限责任公司超高压输电公司大理局 | Portable needle type exhaust joint and sulfur hexafluoride density relay checking method |
| CN111637258B (en) * | 2020-06-01 | 2021-12-14 | 中国南方电网有限责任公司超高压输电公司大理局 | Portable needle type exhaust joint and sulfur hexafluoride density relay checking method |
| CN114705358A (en) * | 2022-03-02 | 2022-07-05 | 贵州电网有限责任公司 | Auxiliary checking device |
| CN114705358B (en) * | 2022-03-02 | 2023-12-01 | 贵州电网有限责任公司 | Auxiliary verification device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107102258B (en) | 2023-08-15 |
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