CN207458721U - A kind of power transformer oil conservater capsule air charging system - Google Patents
A kind of power transformer oil conservater capsule air charging system Download PDFInfo
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- CN207458721U CN207458721U CN201721414364.XU CN201721414364U CN207458721U CN 207458721 U CN207458721 U CN 207458721U CN 201721414364 U CN201721414364 U CN 201721414364U CN 207458721 U CN207458721 U CN 207458721U
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Abstract
The utility model discloses a kind of power transformer oil conservater capsule air charging systems, are related to power transformer detection technique field.The power transformer oil conservater capsule air charging system, including one pressure of gas and flow control system, two pressure of gas and flow control system, gas mixing system, inflation and exhaust system and Measurement and Control System, it can be according to the default goal pressure of pure gas or the default goal pressure of mixed gas and concentration, it is automatically performed the charge operation of transformer oil storage capsule, the speed of inflation can be automatically controlled, automatic alarm and correct safeguard measure can be taken when there is pressure anomaly, the venting operation of capsule and air charging system can be automatically performed.Compared with traditional single full manual manipulation mode of gas circuit, it is necessary to manual intervention it is few, performance accuracy is high, security is good.
Description
Technical field
The utility model belongs to power transformer detection technique field more particularly to a kind of power transformer oil conservater capsule
Air charging system.
Background technology
Oil conservater is the important accessory in large capacity oil-immersed power transformer.Existing national standards GB/T 6451-
2015 regulations, 66kV aboves oil-immersed transformer should take grease proofing burn-in, such as install glue additional inside oil conservater
Capsule, membrane or using wavy metal sealed Oil Tank etc., with ensure insulating oil not with atmosphere.The oil storage of capsule is installed
Cabinet is known as capsule type oil storage cabinet, and opening is left at the top of capsule, and opening is formed by flange arrangement and oil conservater shell and sealed；Glue
It is contacted outside capsule with the insulating oil inside oil conservater, the air of capsule is communicated through the pipeline at the top of oil conservater with air.Row
Industry standard DL/T 5161.3-2012《Electric device installation engineering quality is examined and evaluation regulation third portion：Power transformer,
Liquid immersed reactor, mutual inductor construction quality inspection》It is required that No leakage at capsule body and capsule mouth sealing.
In order to check whether capsule leakproofness is intact, it is sometimes desirable to be filled with one or two kinds of low-pressure gas to capsule
Capsule is expanded, and checks whether the gas in capsule leaks.Such as professional standard DL/T 5161.3-2012《Electric device
Installation engineering quality is examined and evaluation regulation third portion：Power transformer, liquid immersed reactor, mutual inductor construction quality inspection》In
Defined oil conservater capsule leak check method is " slow air test ".In some cases, in order to discharge oil conservater pasta
Above air, it is also desirable to be inflated to capsule.According to the property of work, it may be necessary to be filled with goal-selling to capsule
Drying nitrogen, dry air or the goal-selling pressure of pressure and other gases of concentration and drying nitrogen or air it is mixed
Close object, default pressure（Relative pressure）Generally in the scope of 10 ~ 30kPa, default mixture concentration generally 10000 ~
The scope of 30000mL/L.Usually using the full manual manipulation mode of single gas circuit in industry, i.e., by single loading line, with people
The mode that part work and part study pressure power, manual modulation valve gate aeration speed processed is inflated；When being filled with the gaseous mixture of two kinds of gas, need
To control two kinds of gas manually is filled with ratio, and after the first gas is filled with, removes source of the gas connection manually, connects the
The source of the gas of two kinds of gas；Charge operation is higher to the competency profiling of personnel, and there is the risk that excessively inflation damages capsule.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of power transformer oil conservater capsule air charging system, energy
Enough according to the default goal pressure of pure gas or the default goal pressure of mixed gas and concentration, from trend power transformer
It is inflated in oil conservater capsule, reduces the manual intervention in gas replenishment process, and prevent the risk excessively inflated.
The utility model is to solve above-mentioned technical problem by the following technical solutions：A kind of power transformer oil storage
Cabinet capsule air charging system, including one pressure of gas and flow control system, two pressure of gas and flow control system, gas mixing
System, inflation and exhaust system and Measurement and Control System；Gas outlet, the gas of one pressure of gas and flow control system
The gas outlet of two pressure and flow control system is connected to two air inlets of the gas mixing system by pipeline respectively；Institute
The gas outlet for stating gas mixing system is connected to the air inlet of the inflation and exhaust system by pipeline；The measurement control system
System is connected to one pressure of gas and flow control system, two pressure of gas and flow control system, gas mixing by data cable
The data-interface of system, inflation and exhaust system.
Further, one pressure of gas and flow control system include sequentially connected source of the gas one, pressure reducer one, stream
Adjustable valve one and check valve one；The outlet of the check valve one is one pressure of gas and the outlet of flow control system
Mouthful, it is connected by pipeline with the air inlet of the gas mixing system.
Further, two pressure of gas and flow control system include sequentially connected source of the gas two, pressure reducer two, stream
Adjustable valve two and check valve two；The outlet of the check valve two is two pressure of gas and the outlet of flow control system
Mouthful, it is connected by pipeline with the air inlet of the gas mixing system.
Further, the gas mixing system includes sequentially connected two-position three-way valve, gas flowmeter, check valve
Three；The two entrances of the two-position three-way valve be the gas mixing system two air inlets, by pipeline respectively with it is described
The gas outlet connection of the gas outlet of one pressure of gas and flow control system, two pressure of gas and flow control system；The list
It is the gas outlet of the gas mixing system to the outlet of valve three, passes through pipeline and the inflation and the air inlet of exhaust system.
Further, the two-position three-way valve at any time only there are one entrance unlatching, close, that is, exist by another entrance
Any moment, one pressure of gas and flow control system and two pressure of gas and flow control system only one with institute
State gas mixing system connection.
Further, the inflation and exhaust system include four-way valve, solenoid valve, pressure gauge, four-way connection, pressure release
Valve, bump joint；One interface A of the four-way valve be it is described inflation and exhaust system air inlet, by pipeline with it is described
The gas outlet connection of gas mixing system；Another interface B of the four-way valve is connected with one end of the solenoid valve, other two
A interface C/D and atmosphere；The other end of the solenoid valve is connected with an interface of the four-way connection；Described four connect
The other three interface of head is connected respectively with pressure gauge, pressure relief valve and bump joint.
Further, working condition there are two types of the four-way valves, a kind of interface A for the four-way valve to be connected with interface B,
Interface C is connected with interface D；Another kind connects for the interface A of the four-way valve with interface D, and interface B is connected with interface C.
Further, the working value of the pressure relief valve is 30 kPa（Relative pressure）.
Further, the Measurement and Control System includes the industrial personal computer equipped with TT＆C software and connects respectively with industrial personal computer
One control circuit of flow control valve that connects, two control circuit of flow control valve, two-bit triplet valve controling circuit, four-way valve control electricity
Road and solenoid valve control circuit；One control circuit of flow control valve, two control circuit of flow control valve, two-position three-way valve
Control circuit, four-way valve controling circuit and solenoid valve control circuit pass through data cable and one pressure of gas and flow respectively
Regulating system, two pressure of gas and flow control system, gas mixing system, inflation and the data-interface connection of exhaust system.
Compared with prior art, power transformer oil conservater capsule air charging system provided by the utility model, including gas
One pressure of body and flow control system, two pressure of gas and flow control system, gas mixing system, inflation and exhaust system with
And Measurement and Control System, it can be according to the default goal pressure of pure gas or the default goal pressure of mixed gas and dense
Degree is automatically performed the charge operation of transformer oil storage capsule, the speed of inflation can be automatically controlled, when there is pressure anomaly
Automatic alarm and correct safeguard measure can be taken, the venting operation of capsule and air charging system can be automatically performed.With
The full manual manipulation mode of traditional list gas circuit compare, it is necessary to manual intervention it is few, performance accuracy is high, security is good.
Description of the drawings
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the utility model, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structure diagram of power transformer oil conservater capsule air charging system of the utility model；
Wherein：One pressure of 1- gases and flow control system, two pressure of 2- gases and flow control system, 3- gas mixings
System, 4- inflations and exhaust system, 5- Measurement and Control Systems, 6- sources of the gas one, 7- pressure reducers one, 8- flow control valves one, 9- is mono-
To valve one, 10- sources of the gas two, 11- pressure reducers two, 12- flow control valves two, 13- check valves two, 14- two-position three-way valves, 15- gas
Flowmeter body, 16- check valves three, 17- four-way valves, 18- solenoid valves, 19- pressure gauges, 20- four-way connections, 21- pressure relief valves,
22- bump joints.
Specific embodiment
With reference to the attached drawing in the utility model embodiment, technical solution of this implementation in new is carried out clear, complete
Site preparation describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained on the premise of creative work is not made
Every other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of power transformer oil conservater capsule air charging system provided by the utility model, including gas
One pressure and flow control system 1, two pressure of gas and flow control system 2, gas mixing system 3, inflation and exhaust system 4
And Measurement and Control System 5；The gas outlet of one pressure of gas and flow control system 1, two pressure of gas and flow control system 2
Gas outlet two air inlets of gas mixing system 3 are connected to by pipeline respectively；The gas outlet of gas mixing system 3 passes through
Pipeline is connected to the air inlet of inflation and exhaust system 4；Measurement and Control System 5 is connected to one pressure of gas and stream by data cable
Measure the data-interface of regulating system 1, two pressure of gas and flow control system 2, gas mixing system 3, inflation and exhaust system
4。
One pressure of gas and flow control system 1 include sequentially connected source of the gas 1, pressure reducer 1, flow control valve one
8 and check valve 1；The outlet of check valve 1 is one pressure of gas and the gas outlet of flow control system 1；Two pressure of gas
And flow control system 2 includes sequentially connected source of the gas 2 10, pressure reducer 2 11, flow control valve 2 12 and check valve two
13；The outlet of check valve 2 13 is two pressure of gas and the gas outlet of flow control system 2；Gas mixing system 3 is included successively
Two-position three-way valve 14, gas flowmeter 15, the check valve 3 16 of connection；The two entrances of two-position three-way valve 14 are gas mixing system
Two air inlets of system 3, the outlet of check valve 3 16 are the gas outlet of gas mixing system 3；Check valve 1 exports, unidirectionally
The outlet of valve 2 13 is connected to the two entrances of two-position three-way valve 14 by pipeline respectively.
Two-position three-way valve 14 at any time only there are one entrance unlatching, close by another entrance, i.e., at any time, gas
One pressure of body and flow control system 1 and two pressure of gas and flow control system 2 only one connect with gas mixing system 3
It is logical.
Inflation and exhaust system 4 include four-way valve 17, solenoid valve 18, pressure gauge 19, four-way connection 20, pressure relief valve
21st, bump joint 22；One interface A of four-way valve 17 is the air inlet of inflation and exhaust system 4, passes through pipeline and check valve three
16 outlet connection；Another interface B of four-way valve 17 is connected with one end of solenoid valve 18, other two interface C/D and air
Connection；The other end of solenoid valve 18 is connected with an interface of four-way connection 20；The other three interface of four-way connection 20 respectively with
Pressure gauge 19, pressure relief valve 21 and bump joint 22 connect.
Working condition that there are two types of four-way valves 17, a kind of interface A for four-way valve 17 to be connected with interface B, interface C and interface D
Connection；Another kind connects for the interface A of four-way valve 17 with interface D, and interface B is connected with interface C.The working value of pressure relief valve 21
For 30 kPa（Relative pressure）.
When it is implemented, removing the respirator of transformer oil storage, bump joint 22 is connected to the method for respirator union
At orchid, the outlet of the utility model air charging system is made to be connected with oil conservater capsule.Original state flow down adjustable valve 1, stream
Adjustable valve 2 12, solenoid valve 18 are turned off；Gas in source of the gas 1 is through pressure reducer 1, and the gas in source of the gas 2 10 is through decompression
Device 2 11 is decompressed to 0.1MPa（Relative pressure）.
When needing to be filled with the pure gas of preset pressure to capsule（By taking gas one as an example）, Measurement and Control System 5
It proceeds as follows successively：The interface A of four-way valve 17 is made to be connected with B first, interface C is connected with D；By two-position three-way valve 14 and list
It is connected to valve 1, while by the port closing of check valve 2 13；Solenoid valve 18 is opened；Flow control valve 1 is gradually opened, directly
Flow to gas flowmeter 15 reaches 30 ~ 40L/min, and with the reading of 1 second/time of frequency monitoring pressure gauge 19；Work as pressure
When within lower 2kPa than preset pressure, the flow for making gas flowmeter 15 by controlling flow control valve 1 is down to 10 ~ 20L/
min；When pressure reaches preset pressure, solenoid valve 18, flow control valve 1 are closed successively.
When needing to be filled with the mixed gas of goal-selling pressure and concentration to capsule, Measurement and Control System 5 is successively
It proceeds as follows：The gas one and the pressure of gas two injected first according to needed for the goal pressure of input and concentration calculate automatically
Power, when goal pressure is P（Relative pressure）, gas two in capsule（Assuming that gas two is solute）Aimed concn（Volume fraction）
For C when, the air that is 1 atmospheric pressure due to having absolute pressure in capsule before inflation, if needing two relative pressure of gas that is filled with
For P2, then P2/ (1+P)=C；The interface A of four-way valve 17 is made to be connected with B, interface C is connected with D；By two-position three-way valve 14 and unidirectionally
Valve 2 13 connects, while by the port closing of check valve 1；Solenoid valve 18 is opened；With 1 second/time of frequency monitoring pressure gauge 19
Reading, as real-time pressure 2kPa more than lower than P2, control flow control valve 2 12 reach the flow of gas flowmeter 15
30~40L/min；When within real-time pressure is lower 2kPa than preset pressure, control flow control valve 2 12 makes gas flowmeter 15
Flow be down to 10 ~ 20L/min；When pressure reaches P2, flow control valve 2 12 is closed, by two-position three-way valve 14 and check valve
Gas one is opened to be filled in one 9 connected outlets, at the same with the port closing of check valve 2 13；When real-time pressure compares goal pressure
During low more than the 2kPa of P, flow control valve 1 is controlled, the flow of gas flowmeter 15 is made to reach 30 ~ 40L/min；When pressure ratio is pre-
If when within the low 2kPa of pressure, flow control valve 1 is controlled, the flow of gas flowmeter 15 is made to be down to 10 ~ 20L/min；Work as reality
When pressure when reaching goal pressure P, close solenoid valve 18, flow control valve 2 12 stops inflation.
The exhaust decompression of capsule and air charging system is realized in the following way：Measurement and Control System 5 closes flow control valve
One 8, flow control valve 2 12 opens solenoid valve 18, and control 17 interface A of four-way valve is connected with interface D, and interface B and interface C connects
It is logical；Interface C of the gas through four-way valve 17 in capsule is discharged into air, gas the connecing through four-way valve 17 in gas mixing system 3
Mouth D is discharged into air；When the reading of pressure gauge 19 is reduced to 0, closes solenoid valve 18 and terminate exhaust.
Alarm and automatic Protection under pressure anomaly state are realized in the following way：When flow control valve 1
Fully open, when flow is still too low, system sends the warning of one 6 insufficient pressure of source of the gas；When flow control valve 2 12 is whole
It opens, when flow is still too low, system sends the warning of 2 10 insufficient pressure of source of the gas；When the registration of pressure gauge 19 is more than 28kPa
When, send the warning that pressure approaches limit value；When pressure is more than 30kPa, pressure relief valve 21 automatically turns on pressure release, forces simultaneously
It closes solenoid valve 18, flow control valve 1, flow control valve 2 12 and cuts off source of the gas, and switch the state of four-way valve 17 immediately, make
Interface A is connected with interface D, and interface B is connected with interface C, and the gas in device is made to be discharged into air through four-way valve 17, protects capsule
Safety.
Above disclosed is only specific embodiment of the present utility model, but the scope of protection of the utility model not office
It is limited to this, in the technical scope that any one skilled in the art discloses in the utility model, change can be readily occurred in
Change or modification, should be covered within the scope of the utility model.
Claims (9)
1. a kind of power transformer oil conservater capsule air charging system, it is characterised in that：Including one pressure of gas and flow-rate adjustment system
System（1）, two pressure of gas and flow control system（2）, gas mixing system（3）, inflation and exhaust system（4）And measurement control
System processed（5）；One pressure of gas and flow control system（1）Gas outlet, two pressure of gas and flow control system（2）
Gas outlet the gas mixing system is connected to by pipeline respectively（3）Two air inlets；The gas mixing system（3）
Gas outlet the inflation and exhaust system are connected to by pipeline（4）Air inlet；The Measurement and Control System（5）Pass through number
One pressure of gas and flow control system are connected to according to line（1）, two pressure of gas and flow control system（2）, gas mixing system
System（3）, inflation and exhaust system（4）Data-interface.
2. power transformer oil conservater capsule air charging system as described in claim 1, it is characterised in that：One pressure of gas
And flow control system（1）Including sequentially connected source of the gas one（6）, pressure reducer one（7）, flow control valve one（8）It is and unidirectional
Valve one（9）；The check valve one（9）Outlet be one pressure of gas and flow control system（1）Gas outlet.
3. power transformer oil conservater capsule air charging system as described in claim 1, it is characterised in that：Two pressure of gas
And flow control system（2）Including sequentially connected source of the gas two（10）, pressure reducer two（11）, flow control valve two（12）It is and single
To valve two（13）；The check valve two（13）Outlet be two pressure of gas and flow control system（2）Gas outlet.
4. power transformer oil conservater capsule air charging system as described in claim 1, it is characterised in that：The gas mixing system
System（3）Including sequentially connected two-position three-way valve（14）, gas flowmeter（15）, check valve three（16）；The two-position three-way valve
（14）Two entrances be the gas mixing system（3）Two air inlets, by pipeline respectively with one pressure of gas
And flow control system（1）Gas outlet, two pressure of gas and flow control system（2）Gas outlet connection；The check valve
Three（16）Outlet be the gas mixing system（3）Gas outlet.
5. power transformer oil conservater capsule air charging system as claimed in claim 4, it is characterised in that：The two-position three-way valve
（14）Only there are one entrances at any time to open, another entrance is closed, i.e., at any time, one pressure of gas and stream
Measure regulating system（1）With two pressure of gas and flow control system（2）Only one and the gas mixing system（3）Even
It is logical.
6. power transformer oil conservater capsule air charging system as described in claim 1, it is characterised in that：The inflation and exhaust
System（4）Including four-way valve（17）, solenoid valve（18）, pressure gauge（19）, four-way connection（20）, pressure relief valve（21）, flange
Connector（22）；The four-way valve（17）An interface A be the inflation and exhaust system（4）Air inlet, by pipeline with
The gas mixing system（3）Gas outlet connection；The four-way valve（17）Another interface B and the solenoid valve（18）'s
One end connects, other two interface C/D and atmosphere；The solenoid valve（18）The other end and the four-way connection（20）'s
One interface connection；The four-way connection（20）The other three interface respectively with pressure gauge（19）, pressure relief valve（21）And
Bump joint（22）Connection.
7. power transformer oil conservater capsule air charging system as claimed in claim 6, it is characterised in that：The four-way valve（17）
There are two types of working conditions：One kind is the four-way valve（17）Interface A connected with interface B, interface C is connected with interface D；It is another
For the four-way valve（17）Interface A connected with interface D, interface B is connected with interface C.
8. power transformer oil conservater capsule air charging system as claimed in claim 6, it is characterised in that：The pressure relief valve
（21）Working value be 30 kPa.
9. power transformer oil conservater capsule air charging system as described in claim 1, it is characterised in that：The measurement control system
System（5）Including the industrial personal computer of TT＆C software is housed and is connected respectively with industrial personal computer one control circuit of flow control valve, flow
Two control circuit of regulating valve, two-bit triplet valve controling circuit, four-way valve controling circuit and solenoid valve control circuit；The flow
One control circuit of regulating valve, two control circuit of flow control valve, two-bit triplet valve controling circuit, four-way valve controling circuit and electricity
Magnet valve control circuit passes through data cable and one pressure of gas and flow control system respectively（1）, two pressure of gas and flow
Regulating system（2）, gas mixing system（3）, inflation and exhaust system（4）Data-interface connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414364.XU CN207458721U (en) | 2017-10-30 | 2017-10-30 | A kind of power transformer oil conservater capsule air charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721414364.XU CN207458721U (en) | 2017-10-30 | 2017-10-30 | A kind of power transformer oil conservater capsule air charging system |
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| Publication Number | Publication Date |
|---|---|
| CN207458721U true CN207458721U (en) | 2018-06-05 |
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ID=62282369
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721414364.XU Active CN207458721U (en) | 2017-10-30 | 2017-10-30 | A kind of power transformer oil conservater capsule air charging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906160A (en) * | 2019-11-27 | 2020-03-24 | 云南电网有限责任公司昆明供电局 | Oil-immersed transformer pillow type capsule automatic inflation device |
-
2017
- 2017-10-30 CN CN201721414364.XU patent/CN207458721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906160A (en) * | 2019-11-27 | 2020-03-24 | 云南电网有限责任公司昆明供电局 | Oil-immersed transformer pillow type capsule automatic inflation device |
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