CN206626401U - GIS automatic air supply devices - Google Patents
GIS automatic air supply devices Download PDFInfo
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- CN206626401U CN206626401U CN201720305666.7U CN201720305666U CN206626401U CN 206626401 U CN206626401 U CN 206626401U CN 201720305666 U CN201720305666 U CN 201720305666U CN 206626401 U CN206626401 U CN 206626401U
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Abstract
It the utility model is related to SF6 equipment automatic inflating device technical fields, it is a kind of GIS automatic air supply devices, it includes gas bomb, connecting pipe, control unit and GIS electrical equipment air chambers, control unit includes pressure-reducing valve, magnetic valve, density monitor and automatic control circuit, gas bomb interface is connected by connecting pipe with pressure-reducing valve, pressure-reducing valve is connected by connecting pipe magnetic valve, density monitor is arranged on GIS electrical equipment air chamber interfaces, magnetic valve is connected with GIS electrical equipment air chamber interfaces, the both ends of automatic control circuit electrically connect with density monitor and magnetic valve respectively, automatic control circuit includes gas supply control circuit in parallel and stops gas supply control circuit.The utility model reasonable and compact in structure, density monitor is received by automatic control circuit and sends tonifying Qi or gas pressure wholesale set value signal, controls magnetic valve break-make, to GIS electrical equipment air chamber tonifying Qi, make its fast quick-recovery pressure, avoid having a power failure, improve utilization rate of equipment and installations.
Description
Technical field
SF6 electrical equipment automatic inflating device technical fields are the utility model is related to, are a kind of GIS automatic air supply devices.
Background technology
Sulfur hexafluoride sealed combination electrical equipment (gas in large scale is used in the booster stations of existing power system
Insulated switchgear), abbreviation GIS electrical equipments.The dielectric that GIS electrical equipments use is SF6 gases, SF6
Gas is a kind of inert gas, and chemical property is stable, and arc extinguishing ability is strong, is 100 times of air blowout ability；GIS electrical equipments
Floor space is small, and 10% or so of about traditional outdoor electrical equipment floor space；Integrated height, non-maintaining, easy to assembly, behaviour
Make flexible.But the high pressure SF6 gases filled in GIS electrical equipments are to produce slow leakage, general leakage rate per year control is 3%
Within.If technological deficiency during Equip- ment manufacture and installation be present, gas is let out speed and returned faster, or SF6 gases are caused because temperature is low
Air pressure is low all to cause apparatus insulated degree to decline and cause high-voltage breakdown, damage electrical equipment and large-area power-cuts.
The present GIS electrical equipments in China are all to be carried out supplementing SF6 gases by professional.But GIS electrical equipments occur
Gas leakage or gas pressure deficiency will cause equipment to have a power failure, in order to avoid high-voltage breakdown.SF6 gases are nontoxic, but SF6 gases in itself
Not only species is more for analyte, and its analyte is such as fluorinated thionyl all containing severe toxicity（ SOF2 ）, fluorination sulfonyl（ SO2F2
）, sulfur tetrafluoride（ SF4 ）, hydrogen fluoride（ HF ）Deng nine kinds of SF6 gases analytes all containing toxic, therefore GIS electrical equipments are electric
Equipment tonifying Qi is especially higher to technical requirements.Again, SF6 gases are a kind of especially strong gas of greenhouse effects, molecule
SF6 greenhouse effects are 25000 times of CO2.So discharge of the country to SF6 gases is by strict limitation.Based on above reason, people
Following a few point defects be present in work tonifying Qi：
1st, artificial tonifying Qi activity duration length, once equipment is stopped transport, the short time can not recover, and cause economic loss big；
2nd, there are higher technical requirements in artificial tonifying Qi, hidden danger be present to health of human body；
3rd, to improve SF6 gas purities in GIS electrical equipments, typically SF6 gas purities, SF6 gas are ensured using degassing method
The external discharge of body causes greenhouse effects.
The content of the invention
The utility model provides a kind of GIS automatic air supply devices, overcomes the deficiency of above-mentioned prior art, and it can be effective
Solve the problems, such as it is existing manually to GIS device tonifying Qi when it is existing waste time and energy, tonifying Qi is less efficient and potential safety hazard be present.
The technical solution of the utility model is realized by following measures：A kind of GIS automatic air supply devices, including storage
Gas cylinder, connecting pipe, control unit and GIS electrical equipment air chambers, described control unit include pressure-reducing valve, magnetic valve, density after
Electrical equipment and automatic control circuit, the gas bomb interface are connected by connecting pipe with pressure-reducing valve, and pressure-reducing valve passes through connecting pipe
Be connected with magnetic valve, the density monitor be arranged on GIS electrical equipment air chamber interfaces on, magnetic valve by connecting pipe with
GIS electrical equipment air chambers interface connects, and the automatic control circuit electrically connects with density monitor and magnetic valve respectively, automatic control
Circuit processed includes gas supply control circuit and stops gas supply control circuit, and the gas supply control circuit and stopping gas supply control circuit are simultaneously
It is linked togather.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
Gas supply control circuit described above includes secondary signal relay, closing relay, tonifying Qi relay and in flakes, institute
State the binding post of secondary signal relay normally open contact first to electrically connect with the second electric contact of density monitor, secondary signal relay
Second binding post of device normally opened contact electrically connects with the binding post of tonifying Qi relay coil first, and tonifying Qi relay normally open contact is with closing
The binding post of lock relay coil first electrically connects, and the second binding post of closing relay coil electrically connects with the first contact in flakes,
Closing relay normally opened contact is electrically connected with the solenoid valve, the second contact in flakes and the second binding post electricity of tonifying Qi relay coil
Connection；
The stopping gas supply control circuit includes the first signal relay, rated pressure relay and stops tonifying Qi relay
Device, the first binding post of the first signal relay normally opened contact electrically connect with the first electric contact of density monitor, and first
Second binding post of signal relay normally opened contact electrically connects with the binding post of rated pressure relay coil first, rated pressure after
Electrical equipment normally opened contact electrically connects with stopping the binding post of tonifying Qi relay coil first, the binding post of rated pressure relay coil second
Electrically connected with stopping the binding post of tonifying Qi relay coil second, stop the first binding post and second of tonifying Qi relay normally closed contact
Binding post electrically connects with the second binding post of tonifying Qi relay normally open contact and the first binding post of closing relay coil respectively.
Above-mentioned also to include keeping control circuit, the holding control circuit includes guard relay, the guard relay
Normally opened contact is connected in parallel with tonifying Qi relay normally open contact, and the binding post of guard relay coil first and tonifying Qi relay are normal
The binding post electrical connection of contact second is opened, the binding post of guard relay coil second connects with stopping tonifying Qi relay normally closed contact first
Terminal electrically connects.
It is above-mentioned also to include manual gas supply control switch and stop gas supply control switch manually, the manual gas supply control switch
It is connected in parallel with tonifying Qi relay normally open contact, the gas supply control switch that stops manually touching with rated pressure relay normally open
Point is connected in parallel.
Above-mentioned also to include check-valves and stop valve, magnetic valve is connected by connecting pipe with check-valves, and check-valves passes through company
Adapter road is connected with stop valve, and stop valve is connected by connecting pipe with GIS electrical equipment air chamber interfaces.
Above-mentioned also to include terminal board, the terminal board includes the first binding post, the second binding post, the 3rd
Binding post, the 4th binding post, the 5th binding post, the 6th binding post, the 7th binding post and the 8th binding post, institute
State the first binding post to the 7th binding post and be all connected with positive source, the 8th binding post connects power cathode, and described first connects
Gas supply control circuit is connected between line terminals and the 8th binding post, connects and stops between the second binding post and the 8th binding post
Only gas supply control circuit.
The utility model reasonable and compact in structure, it is easy to use, density monitor is received by automatic control circuit and sent
Tonifying Qi or gas pressure wholesale set value signal, internal logic control magnetic valve break-make, realize to GIS electrical equipment air chamber tonifying Qi and
Stop tonifying Qi, make the fast quick-recovery pressure of under-voltage GIS electrical equipments air chamber, avoid having a power failure, improve equipment availability；This practicality is new
Type realizes totally enclosed type tonifying Qi, avoids SF6 discharges from impacting environment；When realizing supplement SF6 gases, personnel and gas every
From, avoid human contact, suction SF6 gases human body is damaged.
Brief description of the drawings
Accompanying drawing 1 is the electric control circuit figure of the best embodiment of the utility model.
Accompanying drawing 2 is the structural representation of the best embodiment of the utility model.
Coding in accompanying drawing is respectively：1 is gas bomb, and 2 be pressure-reducing valve, and 3 be magnetic valve, and 4 be check-valves, and 5 be stop valve,
6 be density monitor, and 7 be GIS electrical equipment air chambers, and 8 be connecting pipe, and 9 be terminal board, and XJ1 is the first signal relay
Device, XJ2 are secondary signal relay, and BQ is tonifying Qi relay coil, and BJ is tonifying Qi relay normally open contact, and EQ is rated pressure
Relay coil, EJ are rated pressure relay normally open contact, and CQ is guard relay coil, and CJ, which is that guard relay is normally opened, to be touched
Point, TB is stops tonifying Qi relay coil, and TJ is stops tonifying Qi relay normally closed contact, and HQ is closing relay coil, and HJ is
Closing relay normally opened contact, for LP in flakes, K1 switchs for manual gas supply control, K2 is stopping gas supply control switch manually.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
The utility model is further described with reference to embodiment and accompanying drawing：
As shown in accompanying drawing 1,2, the GIS automatic air supply devices include gas bomb 1, connecting pipe 8, control unit and GIS electricity
Gas equipment air chamber 7, described control unit include pressure-reducing valve 2, magnetic valve 3, density monitor 6 and automatic control circuit, the storage
The interface of gas cylinder 1 is connected by connecting pipe 8 with pressure-reducing valve 2, and pressure-reducing valve 2 is connected by connecting pipe 8 with magnetic valve 3, described close
Spend relay 6 to be arranged on the interface of GIS electrical equipments air chamber 7, magnetic valve 3 passes through connecting pipe 8 and GIS electrical equipments air chamber 7
Interface connects, and the automatic control circuit electrically connects with density monitor 6 and magnetic valve 3 respectively, and automatic control circuit includes mending
Together with gas control circuit and stopping gas supply control circuit, the gas supply control circuit and stopping gas supply control circuit in parallel.This
In gas bomb 1 be SF6 gas gas bombs, for the pre-stored equipment of GIS electrical equipment tonifying Qi.Here pressure-reducing valve 2 is adopted
With pointer pressure-reducing valve, regulation and the output gas pressure of control SF6 gas bombs 1, break-make, it is maintained at whole according to actual conditions pressure
Determine scope, while gas-storing capacity in SF6 gas bombs 1 can be detected and be shown on pressure detecting table, conveniently check.The utility model
Density monitor 6 is received by automatic control circuit and sends tonifying Qi or gas pressure wholesale set value signal, passes through internal logic control
The break-make of magnetic valve 3 processed, realize to the tonifying Qi of GIS electrical equipments air chamber 7.
Above-mentioned GIS automatic air supply devices can be made further optimization and/or improvements according to being actually needed：
As shown in Figure 1, the gas supply control circuit includes secondary signal relay XJ2, closing relay, tonifying Qi relay
Device and in flakes LP, the second electric contact electricity of the first binding post of the secondary signal relay XJ2 normally opened contacts and density monitor 6
Connection, the second binding post of secondary signal relay XJ2 normally opened contacts electrically connect with tonifying Qi relay coil the first binding posts of BQ,
Tonifying Qi relay normally open contact BJ electrically connects with closing relay coil the first binding posts of HQ, and the second of closing relay coil HQ
Binding post electrically connects with the contacts of LP first in flakes, and closing relay normally opened contact HJ electrically connects with magnetic valve 3, in flakes the second of LP
Contact electrically connects with tonifying Qi relay coil BQ the second binding post；
The stopping gas supply control circuit include the first signal relay XJ1, rated pressure relay and stop tonifying Qi after
Electrical equipment, the first electric contact of the first binding post and density monitor 6 of the first signal relay XJ1 normally opened contacts are electrically connected
Connect, the second binding post and rated pressure relay coil the first binding posts of EQ of the first signal relay XJ1 normally opened contacts are electrically connected
Connect, rated pressure relay normally open contact EJ with stop tonifying Qi relay coil the first binding posts of TQ electrically connect, rated pressure after
The binding posts of electric apparatus coil EQ second electrically connect with stopping tonifying Qi relay coil the second binding posts of TQ, and it is normally closed to stop tonifying Qi relay
Contact TJ the first binding post and the second binding post respectively with tonifying Qi relay normally open contact BJ the second binding post and close a floodgate after
Electric apparatus coil HQ the first binding post electrical connection.
Automatic control circuit operation principle：When the pressure of GIS electrical equipments air chamber 7 declines, density monitor 6 can track pressure
Power changes, when pressure drops to superfeed pressure definite value（Definite value is set according to physical device）, secondary signal relay XJ2 closures,
Tonifying Qi relay coil BQ accesses 24V direct currents, and tonifying Qi relay coil BQ produces magnetic attraction tonifying Qi relay normally open contact
BJ, gas supply control circuit connect 24V direct currents, and closing relay coil HQ obtains electric, and it is normal to produce magnetic attraction closing relay
Contact HJ is opened, magnetic valve 3 is opened for the make-up gas of GIS electrical equipments air chamber 7.When pressure, to reach GIS electrical equipments air chamber 7 specified
During pressure（Definite value is set according to physical device）First signal relay XJ1 is closed, and rated pressure relay coil EQ obtains electric production
Raw magnetic attraction rated pressure relay normally open contact EJ, stop tonifying Qi relay coil TB and obtain electric generation magnetic force tripping stopping benefit
Gas relay normally closed contact TJ, gas supply control circuit disconnect, and closing relay coil HQ dead electricity magnetic force disappears, and closing relay is normal
Closed contact HJ disconnects, and power of electromagnetic valve contact disconnects, and magnetic valve 3 closes, and tonifying Qi terminates.
As shown in Figure 1, in addition to control circuit is kept, the holding control circuit includes guard relay, the guarantor
Hold relay normally open contact CJ and tonifying Qi relay normally open contact BJ to be connected in parallel, guard relay coil the first binding posts of CQ
Electrically connected with tonifying Qi relay normally open contact the second binding posts of BJ, the second binding posts of guard relay coil CQ with stop tonifying Qi after
The first binding posts of electrical equipment normally-closed contact TJ electrically connect.
Keep control circuit operation principle：After tonifying Qi starts, gas pressure rises in GIS electrical equipments air chamber 7, density
Increase, density monitor 6 can track pressure change, and when pressure is slightly larger than superfeed pressure, secondary signal relay XJ2 will be jumped
Open, while tonifying Qi relay coil BQ dead electricity, magnetic force disappear, tonifying Qi relay normally open contact BJ trippings, tonifying Qi stops；But now
The pressure of GIS electrical equipments air chamber 7 is also not up to rated pressure, in order to which tonifying Qi is sufficient, introduces and keeps control circuit, i.e., in tonifying Qi control
Circuit processed installs guard relay coil CQ adhesive guard relay normally opened contact CJ additional, makes tonifying Qi relay normally open contact BJ short
Road.By increase keep control circuit, to during GIS electrical equipment 7 tonifying Qi of air chamber, avoid tonifying Qi relay normally open contact BJ jump
Open and cause gas supply control down circuitry, influence to continue tonifying Qi.
As shown in Figure 1, in addition to manual gas supply control switchs K1 and stops gas supply control manually and switchs K2, described manual
Gas supply control switch K1 and tonifying Qi relay normally open contact BJ is connected in parallel, described to stop gas supply control switch K2 and volume manually
Constant-pressure relay normally open contact EJ is connected in parallel.
As shown in accompanying drawing 1,2, in addition to check-valves 4 and stop valve 5, magnetic valve 3 are connected by connecting pipe 8 and check-valves 4
Connect, check-valves 4 is connected by connecting pipe 8 with stop valve 5, and stop valve 5 is connect by connecting pipe 8 and GIS electrical equipments air chamber 7
Mouth is connected.It can prevent from making because the pressure of SF6 gas bombs 1 is low gas in GIS electrical equipments air chamber 7 to return used here as check-valves 4
Stream；When stop valve 5 facilitates the staff to overhaul, gas passage can be manually switched off；Connecting pipe 8 used herein is airway tube,
Staff is facilitated to adjust length and good airproof performance.
As shown in Figure 1, in addition to terminal board 9, the terminal board 9 connect including the first binding post, second
Line terminals, the 3rd binding post, the 4th binding post, the 5th binding post, the 6th binding post, the 7th binding post and the 8th
Binding post, first binding post to the 7th binding post are all connected with positive source, and the 8th binding post connects power cathode,
Gas supply control circuit, the second binding post and the 8th binding post are connected between first binding post and the 8th binding post
Between connection stop gas supply control circuit.As needed, the positive source accessed here is+110V, and power cathode is -110V.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal implementation
Effect, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
Claims (10)
1. a kind of GIS automatic air supply devices, it is characterised in that including gas bomb, connecting pipe, control unit and GIS electrical equipments
Air chamber, described control unit include pressure-reducing valve, magnetic valve, density monitor and automatic control circuit, and the gas bomb interface leads to
Cross connecting pipe to be connected with pressure-reducing valve, pressure-reducing valve is connected by connecting pipe with magnetic valve, and the density monitor is arranged on GIS
On electrical equipment air chamber interface, magnetic valve is connected by connecting pipe with GIS electrical equipment air chamber interfaces, described to automatically control electricity
Road electrically connects with density monitor and magnetic valve respectively, and automatic control circuit includes gas supply control circuit and stops gas supply control electricity
Together with road, the gas supply control circuit and stopping gas supply control circuit in parallel.
2. GIS automatic air supply devices according to claim 1, it is characterised in that the gas supply control circuit includes the second letter
Number relay, closing relay, tonifying Qi relay and in flakes, the binding post of secondary signal relay normally open contact first with it is close
Spend the second electric contact electrical connection of relay, the binding post of secondary signal relay normally open contact second and tonifying Qi relay coil the
One binding post electrically connects, and tonifying Qi relay normally open contact electrically connects with the binding post of closing relay coil first, closing relay
The binding post of coil second is electrically connected with the first contact in flakes, and closing relay normally opened contact is electrically connected with the solenoid valve, and in flakes
Two contacts electrically connect with the second binding post of tonifying Qi relay coil；
The stopping gas supply control circuit includes the first signal relay, rated pressure relay and stops tonifying Qi relay, institute
The first binding post of the first signal relay normally opened contact is stated to electrically connect with the first electric contact of density monitor, the first signal after
Second binding post of electrical equipment normally opened contact electrically connects with the binding post of rated pressure relay coil first, and rated pressure relay is normal
Open contact and electrically connected with stopping the binding post of tonifying Qi relay coil first, the binding post of rated pressure relay coil second is with stopping
The binding post of tonifying Qi relay coil second electrically connects, and stops the first binding post and the second binding post of tonifying Qi relay normally closed contact
Electrically connected respectively with the second binding post of tonifying Qi relay normally open contact and the first binding post of closing relay coil.
3. GIS automatic air supply devices according to claim 1 or 2, it is characterised in that also include keeping control circuit, it is described
Control circuit is kept to include guard relay, the guard relay normally opened contact is connected in parallel on one with tonifying Qi relay normally open contact
Rise, the binding post of guard relay coil first electrically connects with the binding post of tonifying Qi relay normally open contact second, guard relay line
Enclose the second binding post and electrically connected with stopping the binding post of tonifying Qi relay normally closed contact first.
4. GIS automatic air supply devices according to claim 1 or 2, it is characterised in that also switched including manual gas supply control
Stop gas supply control switch with manual, the manual gas supply control switch is connected in parallel with tonifying Qi relay normally open contact, institute
Stopping gas supply control switch manually is stated to be connected in parallel with rated pressure relay normally open contact.
5. GIS automatic air supply devices according to claim 3, it is characterised in that also including manual gas supply control switch and hand
Dynamic to stop gas supply control switch, the manual gas supply control switch is connected in parallel with tonifying Qi relay normally open contact, the hand
The dynamic gas supply control switch that stops is connected in parallel with rated pressure relay normally open contact.
6. GIS automatic air supply devices according to claim 1 or 2, it is characterised in that also including check-valves and stop valve, electricity
Magnet valve is connected by connecting pipe with check-valves, and check-valves is connected by connecting pipe with stop valve, and stop valve passes through connecting tube
Road is connected with GIS electrical equipment air chamber interfaces.
7. GIS automatic air supply devices according to claim 3, it is characterised in that also including check-valves and stop valve, electromagnetism
Valve is connected by connecting pipe with check-valves, and check-valves is connected by connecting pipe with stop valve, and stop valve passes through connecting pipe
It is connected with GIS electrical equipment air chamber interfaces.
8. GIS automatic air supply devices according to claim 4, it is characterised in that also including check-valves and stop valve, electromagnetism
Valve is connected by connecting pipe with check-valves, and check-valves is connected by connecting pipe with stop valve, and stop valve passes through connecting pipe
It is connected with GIS electrical equipment air chamber interfaces.
9. GIS automatic air supply devices according to claim 5, it is characterised in that also including check-valves and stop valve, electromagnetism
Valve is connected by connecting pipe with check-valves, and check-valves is connected by connecting pipe with stop valve, and stop valve passes through connecting pipe
It is connected with GIS electrical equipment air chamber interfaces.
10. GIS automatic air supply devices according to claim 1 or 2, it is characterised in that described also including terminal board
Terminal board includes the first binding post, the second binding post, the 3rd binding post, the 4th binding post, the 5th terminals
Son, the 6th binding post, the 7th binding post and the 8th binding post, first binding post to the 7th binding post connect
Positive source is connect, the 8th binding post connects power cathode, tonifying Qi is connected between first binding post and the 8th binding post
Control circuit, connection stopping gas supply control circuit between the second binding post and the 8th binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305666.7U CN206626401U (en) | 2017-03-27 | 2017-03-27 | GIS automatic air supply devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305666.7U CN206626401U (en) | 2017-03-27 | 2017-03-27 | GIS automatic air supply devices |
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| Publication Number | Publication Date |
|---|---|
| CN206626401U true CN206626401U (en) | 2017-11-10 |
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ID=60208423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720305666.7U Active CN206626401U (en) | 2017-03-27 | 2017-03-27 | GIS automatic air supply devices |
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| Country | Link |
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| CN (1) | CN206626401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878906A (en) * | 2019-11-15 | 2020-03-13 | 广州供电局有限公司 | Liquid phase gas supplementing method for mixed gas of gas insulation equipment |
-
2017
- 2017-03-27 CN CN201720305666.7U patent/CN206626401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878906A (en) * | 2019-11-15 | 2020-03-13 | 广州供电局有限公司 | Liquid phase gas supplementing method for mixed gas of gas insulation equipment |
| CN110878906B (en) * | 2019-11-15 | 2021-07-30 | 广州供电局有限公司 | Liquid phase gas supplementing method for mixed gas of gas insulation equipment |
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