CN109166691A - Transformer oil level regulating device - Google Patents
Transformer oil level regulating device Download PDFInfo
- Publication number
- CN109166691A CN109166691A CN201810991062.1A CN201810991062A CN109166691A CN 109166691 A CN109166691 A CN 109166691A CN 201810991062 A CN201810991062 A CN 201810991062A CN 109166691 A CN109166691 A CN 109166691A
- Authority
- CN
- China
- Prior art keywords
- oil
- oil level
- fuel tank
- valve
- conservator
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/008—Details of transformers or inductances, in general with temperature compensation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Transformer Cooling (AREA)
Abstract
The present invention relates to transformer auxiliary protection engineering device technique fields, are a kind of transformer oil level regulating devices comprising oil filling mechanism, fuel tank and driving mechanism；It is communicated with drain line on fuel tank, valve is fixedly installed on drain line, the incoming air conduit being connected to fuel tank internal is fixedly installed on the top of fuel tank, the piston plate that oil filling mechanism is divided into gas chamber and grease chamber is provided in oil filling mechanism.Structure of the invention is reasonable and compact, it is easy to use, oil fuel tube, drain line are connected to conservator by it respectively, the practical oil level of conservator once deviates its standard oil level, and valve is opened or driving mechanism driving piston plate is mobile, and implementation is drained the oil or oil injection operation, to adjust the practical oil level of conservator to standard oil level, it can guarantee that the practical oil level of conservator is run according to the standard oil level of its oil temperature oil level curve, thus avoid the injury caused by conservator, ensure that transformer operates normally.
Description
Technical field
The present invention relates to transformer auxiliary protection engineering device technique fields, are a kind of transformer oil level regulating devices.
Background technique
In the power system, in order to meet technical requirements of the transformer in terms of insulation and heat dissipation, and transformer winding
It soaks among transformer oil completely, this transformer is referred to as oil-immersed power transformer.Oil-immersed power transformer is contained
The transformer oil of dress is that volume change constantly occurs with running temperature, and the breathing that this phenomenon is referred to as transformer is made
With capacity is bigger, and respiration is more significant.Current this transformer is all by its oil conservater (being commonly called as conservator) to transformer oil
Volume change play oil mass compensating action, this capacity compensation of conservator is all to design at certain operational conditions,
It is exactly that conservator is corresponding with a determining standard oil place value at different operating temperatures, that is, requires the practical oil level of conservator according to it
The standard oil level of oil temperature oil level curve is run.Under the conditions of main transformer operates in extreme climate or bad condition, conservator
Practical oil level can deviate from standard oil level, if practical oil level adjusts not in time, when deviateing to a certain degree, main transformer
Protective device (main transformer protection device) will issue oil level abnormality alarming signal, will cause transformer tripping when serious, for example, when oil
When the practical oil level of pillow is much higher than standard oil level, conservator is easily deformed, and main transformer protection device issues oil level and accuses extremely at this time
Alert signal, brings irreversible injury to conservator.
Summary of the invention
The present invention provides a kind of transformer oil level regulating devices, overcome the defects of the prior art, can be effective
When solving existing main transformer and running under non-good working condition, it is larger that the practical oil level of conservator deviates standard oil level degree
When, it is easy the problem of irreversible injury is caused to conservator.
The technical scheme is that realized by following measures: a kind of transformer oil level regulating device, including note
Oil machine structure, fuel tank and driving mechanism；It is communicated with drain line on fuel tank, valve is fixedly installed on drain line, in fuel tank
Top is fixedly installed with the incoming air conduit being connected to fuel tank internal, be provided in oil filling mechanism by oil filling mechanism be divided into gas chamber and
The piston plate of grease chamber is communicated with gas flow pipe between the top of fuel tank and the gas chamber of oil filling mechanism, in going out for fuel tank lower part
It is communicated with repairing pipe between hydraulic fluid port and the grease chamber oil inlet of oil filling mechanism, the first check valve, oiling machine are serially connected on repairing pipe
The grease chamber top of structure is fixedly installed with the oil fuel tube being connected to grease chamber inside, is serially connected with second one-way valve, driving machine on oil fuel tube
The power output shaft and piston plate of structure are sequentially connected by transmission mechanism.
Here is the further optimization and/or improvements to invention technology described above scheme:
Above-mentioned oil filling mechanism includes oil cylinder and is located at in-oil cylinder piston plate, and oil cylinder is then divided into gas chamber and oil from preceding by piston plate
Room；Driving mechanism includes motor and nut screw pair, and nut screw pair includes lead screw and the nut that is coupled with lead screw, motor
Power output shaft and lead screw by transmission mechanism transmission connection.
The bypass pipe with valve in parallel is communicated on the drain line at above-mentioned valve both ends, solenoid valve is serially connected on bypass pipe；
Transformer oil level regulating device further includes control module, and control module is electrically connected with the solenoid valve, the signal of control module and motor
Input terminal electrical connection.
Above-mentioned transformer oil level regulating device further includes the liquidometer that liquid level signal can be transferred to control module, liquidometer
It is electrically connected with control module.
First liquid level gauge, repairing mouth and oil discharge outlet are respectively set on above-mentioned fuel tank；Grease chamber is provided with second liquid level gauge, the
Two liquidometers are electrically connected with control module.
Dehydrating breather and switch valve are provided on above-mentioned incoming air conduit.
Structure of the invention is reasonable and compact, easy to use, and oil fuel tube, drain line are connected to conservator respectively, conservator
Practical oil level once deviates its standard oil level, and valve is opened or driving mechanism driving piston plate is mobile, and implementation is drained the oil or oiling behaviour
Make, can guarantee that the practical oil level of conservator is bent according to its oil temperature oil level to standard oil level to adjusting the practical oil level of conservator
The standard oil level of line is run, and thus avoids the injury caused by conservator, ensures that transformer operates normally.
Detailed description of the invention
Attached drawing 1 is the schematic view of the front view of preferred embodiment.
Attached drawing 2 is the schematic view of the front view of oil filling mechanism.
Attached drawing 3 is control block diagram of the invention.
Coding in attached drawing is respectively as follows: 1 for oil filling mechanism, and 2 be fuel tank, and 3 be drain line, and 4 be solenoid valve, and 5 be into air
Pipe, 6 be gas flow pipe, and 7 be repairing pipe, and 8 be oil fuel tube, and 9 be the first check valve, and 10 be second one-way valve, and 11 be oil cylinder, 12
It is lead screw for piston plate, 13,14 be nut, and 15 be hand-operated valve, and 16 be bypass pipe, and 17 be dehydrating breather, and 18 be switch valve, and 19 be gas
Room, 20 be grease chamber, and 21 be conservator.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 1
Butut mode be described, such as: front, rear, top, and bottom, left and right positional relationship be the cloth according to Figure of description 1
Figure direction determines.
Below with reference to examples and drawings, the invention will be further described:
As shown in attached drawing 1 to 3, which includes oil filling mechanism 1, fuel tank 2 and driving mechanism；In fuel tank 2
On be communicated with drain line 3, valve 15 is fixedly installed on drain line 3, the top of fuel tank 2 be fixedly installed with in fuel tank 2
The incoming air conduit 5 of portion's connection, is provided in oil filling mechanism 1 and divides oil filling mechanism 1 to piston plate 12 for gas chamber 10 and grease chamber 20,
It is communicated with gas flow pipe 6 between the top of fuel tank 2 and the gas chamber 19 of oil filling mechanism 1, the oil outlet and note in 2 lower part of fuel tank
It is communicated with repairing pipe 7 between 20 oil inlet of grease chamber of oil machine structure 1, the first check valve 9, oil filling mechanism 1 are serially connected on repairing pipe 7
20 top of grease chamber be fixedly installed with the oil fuel tube 8 being connected to inside grease chamber 20, be serially connected with second one-way valve 10 on oil fuel tube 8,
The power output shaft and piston plate 12 of driving mechanism are sequentially connected by transmission mechanism.
In the use of the present invention, oil fuel tube 8, drain line 3 are connected to conservator 21 respectively, the practical oil level of conservator 21 is once
Deviate its standard oil level, valve 15 is opened or driving mechanism driving piston plate 12 is mobile, and implementation is drained the oil or oil injection operation, thus will
The practical oil level of conservator 21 is adjusted to standard oil level, that is, can guarantee the practical oil level of conservator 21 according to the mark of its oil temperature oil level curve
Thus quasi- oil level operation avoids ensureing that transformer operates normally to injury caused by conservator 21.
Oil drain operation: when the practical oil level of conservator 21 is higher than standard oil level and needs to release the oil in conservator 21, valve
15 valve opening of door, the oil in conservator 21 are entered in fuel tank 2 by drain line 3, implement Oil drain operation；When the oil level in conservator 21 is down to
When standard oil level, valve 15 closes valve, stops Oil drain operation.
Oil injection operation: when the practical oil level of conservator 21 is lower than standard oil level, the oiling into conservator 21, driving mechanism are needed
Driving piston plate 12 moves backward in oil filling mechanism 1, implements the oil injection operation into conservator 21；When liquid level rises to mark in conservator 21
When quasi- oil level, driving mechanism stops the driving movement of piston plate 12, and oil filling mechanism 1 stops to 21 oiling of conservator.
Above-mentioned transformer oil level regulating device can be made further optimization and/or improvements according to actual needs:
As shown in attached drawing 1,2, oil filling mechanism 1 includes oil cylinder 11 and the piston plate 12 in oil cylinder 11, and piston plate 12 is by oil cylinder
11 are then divided into gas chamber 19 and grease chamber 20 from preceding；Driving mechanism includes motor and nut screw pair, and nut screw pair includes lead screw
13 and the nut 14 that is coupled with lead screw 13, the power output shaft and lead screw 13 of motor pass through transmission mechanism transmission connection.
Lead screw 13 is driven to rotate (clockwise or counterclockwise) in one direction by driving mechanism, piston plate 12 is in lead screw 13
Rotary action under moved forwards or backwards in oil cylinder 11, wherein nut 14 and lead screw 13 form lead screw vice mechanism, work as driving
Mechanism applies the power of rotation to lead screw 13, and while lead screw 13 rotates, nut 14 is able to drive piston plate 12 along the longitudinal direction
Linear motion.
Since the gas chamber 19 of oil cylinder 11 is connected to fuel tank 2, the air pressure of gas chamber 19 is identical as air pressure in fuel tank 2.
Repairing operation: to when 20 repairing of grease chamber, driving mechanism drives lead screw 13 to rotate, and piston plate 12 moves forwards, oil
Air pressure is less than air pressure in fuel tank 2 in room 20, i.e. the lower end pressure of the first check valve 9 is greater than end pressure thereon, and repairing pipe 7 is connected, oil
Oil in case 2 is inhaled into grease chamber 20, and when the oil level in grease chamber 20 reach a certain height, driving mechanism is shut down, and completes grease chamber
20 repairings operation.
Pass through grease chamber 20 again into conservator 21 when oiling, driving mechanism driving lead screw 13 rotates in the opposite direction, piston plate
12 move backward, and air pressure is greater than air pressure in fuel tank 2 in grease chamber 20, and air pressure is greater than its external pressure in grease chamber 20, and first is single
End pressure is greater than its lower end pressure on valve 9, and the lower end pressure of second one-way valve 10 is greater than end pressure thereon, and repairing pipe 7 stops mending
Oil, oil fuel tube 8 are connected, and the oil in grease chamber 20 is injected in conservator 21 by oil fuel tube 8, implement oil injection operation.
The oil cylinder 11 of this oil filling mechanism 1 can automatic repairing, so that oil cylinder 11 is had enough oil masses, realize the benefit to conservator 21
Oil operation.
As shown in Fig. 1, the bypass pipe 16 in parallel with valve 15, electromagnetism are communicated on the drain line 3 at 15 both ends of valve
Valve 4 is serially connected on bypass pipe 16；Transformer oil level regulating device further includes control module, and control module is electrically connected with solenoid valve 4,
Control module is electrically connected with the signal input part of motor.
Control module is electrically connected with solenoid valve 4, and control module is electrically connected with the signal input part of motor, will be used to monitor oil
The liquidometer for resting the head on 21 liquid levels is electrically connected with control module, which is sent to control mould for the liquid level data monitored in real time
Block, the liquid level data monitored are compared with standard liquid level, and the practical oil level of conservator 21 once deviates its standard oil level, electromagnetism
Valve 4 or motor work, make its quick response drain the oil or oil injection operation, to quickly adjusting the practical oil level of conservator 21 to standard
Oil level can guarantee that the practical oil level of conservator 21 is run according to the standard oil level of its oil temperature oil level curve, thus avoid to conservator
It is injured caused by 21, ensures that transformer operates normally.
Control module is existing well-known technique, for example it can be controller, PLC control system, RTU(remote terminal list
Member) etc..
Positive and negative rotaring signal that motor is given according to control module carries out the switching that motor rotates and reverse, motor it is positive and negative
Turn, make 13 positive and negative rotation of lead screw, the positive and negative rotation of lead screw 13 drives piston plate 12 to be moved forward or rearward, to implement repairing operation
Or oil injection operation.
For example, lead screw 13 rotates forward when motor rotates forward, piston plate 12 is driven to move backward, air pressure is greater than oil in grease chamber 20
Air pressure in case 2, and air pressure is greater than its external pressure in grease chamber 20, and end pressure is greater than its lower end pressure on the first check valve 9, the
The lower end pressure of two check valves 10 is greater than end pressure, repairing pipe 7 thereon and stops replenishing, and oil fuel tube 8 is connected, and the oil in grease chamber 20 passes through
Oil fuel tube 8 injects in conservator 21, implements oil injection operation；Conversely, implementing repairing operation.
When the practical oil level of conservator 21 is higher than standard oil level and needs to release the oil in conservator 21, liquidometer will be monitored
To liquid level data be sent to control module in real time, then control module gives the signal of 4 valve opening of solenoid valve, 4 basis of solenoid valve
Signal executes valve opening operation, implements Oil drain operation；When the oil level in conservator 21 is down to standard oil level, control module is according to reception
The liquid level data arrived gives the signal that solenoid valve 4 closes valve, and solenoid valve 4 is executed according to signal closes valve operation, stops Oil drain operation.
When the practical oil level of conservator 21 is lower than standard oil level, need the oiling into conservator 21, liquidometer will monitor
Liquid level data is sent to control module in real time, and then control module gives the signal of motor oiling, and motor driven piston plate 12 exists
It is moved backward in oil filling mechanism, implements the oil injection operation into conservator 21；When liquid level rises to standard oil level in conservator 21, mould is controlled
Root tuber gives the signal that motor stops oiling according to the liquid level data received, and motor stops driving 1 oiling of oil filling mechanism.
As needed, transmission mechanism uses gear drive.Gear mechanism is using current well known gear mechanism.
As needed, transformer oil level regulating device further includes the liquidometer that liquid level signal can be transferred to control module,
Liquidometer is electrically connected with control module.
The liquidometer is used to monitor the oil level of conservator 21, and oil level data can be sent to control module.
As shown in Fig. 1, dehydrating breather 17 and switch valve 18 are provided on incoming air conduit 5.
Air enters before fuel tank 2, first passes through the moisture absorption of dehydrating breather 17, prevents moisture from entering fuel tank 2.
As needed, first liquid level gauge, repairing mouth and oil discharge outlet are respectively set on fuel tank 2；Grease chamber 20 is provided with
Two liquidometers, second liquid level gauge are electrically connected with control module.
The oil level in fuel tank 2, which is monitored, by first liquid level gauge passes through repairing mouth repairing, fuel tank 2 when not having oil in fuel tank 2
When interior oil level is excessively high, pass through oil discharge outlet oil extraction.
The oil level in grease chamber 20 is monitored by second liquid level gauge, the liquid level data monitored is sent to control by second liquid level gauge
Molding block, when control module receives it is oil-free in grease chamber 20 when, control module give motor driven oil filling mechanism 1 execute repairing behaviour
The signal of work prevents the situation that grease chamber 20 is oil-free when needing oiling.Second liquid level gauge is existing known with signal transmission
Liquidometer.
The travel switch of restricted 12 overtravel of piston plate is arranged in rear and front end in the oil cylinder 11 of the present apparatus, to prevent piston
Plate 12 cannot stop after advancing to extreme position and device is caused to damage.Travel switch is existing well-known technique.
The above technical characteristic constitutes highly preferred embodiment of the present invention, with stronger adaptability and best implementation effect
Fruit can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (9)
1. a kind of transformer oil level regulating device, it is characterised in that including oil filling mechanism, fuel tank and driving mechanism；Connect on fuel tank
Be connected with drain line, valve be fixedly installed on drain line, the top of fuel tank be fixedly installed be connected to fuel tank internal into
Air hose is provided with the piston plate that oil filling mechanism is divided into gas chamber and grease chamber, top and oiling in fuel tank in oil filling mechanism
It is communicated with gas flow pipe between the gas chamber of mechanism, is connected between the oil outlet of fuel tank lower part and the grease chamber oil inlet of oil filling mechanism
Be connected with repairing pipe, be serially connected with the first check valve on repairing pipe, the grease chamber top of oil filling mechanism be fixedly installed with inside grease chamber
The oil fuel tube of connection, second one-way valve is serially connected on oil fuel tube, and the power output shaft and piston plate of driving mechanism pass through driver
Structure transmission connection.
2. transformer oil level regulating device according to claim 1, it is characterised in that oil filling mechanism includes oil cylinder and is located at
Oil cylinder is then divided into gas chamber and grease chamber from preceding by in-oil cylinder piston plate, piston plate；Driving mechanism includes motor and nut screw
Pair, nut screw pair include lead screw and the nut that is coupled with lead screw, and the power output shaft and lead screw of motor pass through driver
Structure transmission connection.
3. transformer oil level regulating device according to claim 2, it is characterised in that be connected on the drain line at valve both ends
There is the bypass pipe with valve in parallel, solenoid valve is serially connected on bypass pipe；Transformer oil level regulating device further includes control module, control
Molding block is electrically connected with the solenoid valve, and control module is electrically connected with the signal input part of motor.
4. transformer oil level regulating device according to claim 1 or 2 or 3, it is characterised in that further include that can believe liquid level
It number is transferred to the liquidometer of control module, liquidometer is electrically connected with control module.
5. transformer oil level regulating device according to claim 1 or 2 or 3, it is characterised in that is respectively set on fuel tank
One liquidometer, repairing mouth and oil discharge outlet；Grease chamber is provided with second liquid level gauge, second liquid level gauge is electrically connected with control module.
6. transformer oil level regulating device according to claim 4, it is characterised in that the first liquid level is respectively set on fuel tank
Meter, repairing mouth and oil discharge outlet；Grease chamber is provided with second liquid level gauge, second liquid level gauge is electrically connected with control module.
7. transformer oil level regulating device described according to claim 1 or 2 or 3 or 6, it is characterised in that be arranged on incoming air conduit
There are dehydrating breather and switch valve.
8. transformer oil level regulating device according to claim 4, it is characterised in that be provided with dehydrating breather on incoming air conduit
And switch valve.
9. transformer oil level regulating device according to claim 5, it is characterised in that be provided with dehydrating breather on incoming air conduit
And switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991062.1A CN109166691B (en) | 2018-08-28 | 2018-08-28 | Transformer oil level adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991062.1A CN109166691B (en) | 2018-08-28 | 2018-08-28 | Transformer oil level adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109166691A true CN109166691A (en) | 2019-01-08 |
| CN109166691B CN109166691B (en) | 2023-10-03 |
Family
ID=64893242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810991062.1A Active CN109166691B (en) | 2018-08-28 | 2018-08-28 | Transformer oil level adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109166691B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403153A (en) * | 2020-03-17 | 2020-07-10 | 山东电力设备有限公司 | Transformer oil conservator rapid cut-off and oil discharge device, control system and method |
| CN113571303A (en) * | 2021-08-06 | 2021-10-29 | 国网新疆电力有限公司检修公司 | Intelligent automatic oil supplementing device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073115U (en) * | 1993-06-02 | 1995-01-17 | 株式会社東芝 | Conservator |
| CN102760557A (en) * | 2012-07-31 | 2012-10-31 | 山东电力集团公司济南供电公司 | Online oil replenishing and draining device for transformer oil conservator |
| CN104575960A (en) * | 2014-12-31 | 2015-04-29 | 芜湖金牛电气股份有限公司 | Air bag oil conservator for transformer and oiling method |
| CN108083220A (en) * | 2017-11-13 | 2018-05-29 | 国网浙江省电力公司绍兴供电公司 | The charged oiling machine of intelligent integral main transformer conservator |
| CN108288531A (en) * | 2018-01-09 | 2018-07-17 | 国网山东省电力公司滨州供电公司 | A kind of transformer oil level auxiliary conditioning unit |
| CN208819687U (en) * | 2018-08-28 | 2019-05-03 | 国网新疆电力有限公司伊犁供电公司 | Transformer oil level regulating device |
-
2018
- 2018-08-28 CN CN201810991062.1A patent/CN109166691B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073115U (en) * | 1993-06-02 | 1995-01-17 | 株式会社東芝 | Conservator |
| CN102760557A (en) * | 2012-07-31 | 2012-10-31 | 山东电力集团公司济南供电公司 | Online oil replenishing and draining device for transformer oil conservator |
| CN104575960A (en) * | 2014-12-31 | 2015-04-29 | 芜湖金牛电气股份有限公司 | Air bag oil conservator for transformer and oiling method |
| CN108083220A (en) * | 2017-11-13 | 2018-05-29 | 国网浙江省电力公司绍兴供电公司 | The charged oiling machine of intelligent integral main transformer conservator |
| CN108288531A (en) * | 2018-01-09 | 2018-07-17 | 国网山东省电力公司滨州供电公司 | A kind of transformer oil level auxiliary conditioning unit |
| CN208819687U (en) * | 2018-08-28 | 2019-05-03 | 国网新疆电力有限公司伊犁供电公司 | Transformer oil level regulating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403153A (en) * | 2020-03-17 | 2020-07-10 | 山东电力设备有限公司 | Transformer oil conservator rapid cut-off and oil discharge device, control system and method |
| CN113571303A (en) * | 2021-08-06 | 2021-10-29 | 国网新疆电力有限公司检修公司 | Intelligent automatic oil supplementing device and method |
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|---|---|
| CN109166691B (en) | 2023-10-03 |
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