CN105161254A - Oil conservator for oil-immersed transformer - Google Patents
Oil conservator for oil-immersed transformer Download PDFInfo
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- CN105161254A CN105161254A CN201510545029.2A CN201510545029A CN105161254A CN 105161254 A CN105161254 A CN 105161254A CN 201510545029 A CN201510545029 A CN 201510545029A CN 105161254 A CN105161254 A CN 105161254A
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- oil
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- transformer
- bellows
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Abstract
The invention discloses an oil conservator for an oil-immersed transformer. The oil conservator comprises a conservator body (1), a bag-shaped body and a drive device, wherein the conservator body (1) is communicated with the inside of the transformer and is used for accommodating transformer oil; the bag-shaped body is arranged in the conservator body (1) and has a function of changing the volume; the drive device is arranged to be connected with the bag-shaped body and drives the bag-shaped body to change the volume; when the volume of the transformer oil shrinks due to reduction of the temperature in the transformer, the volume of the bag-shaped body is increased under the action of the drive device; when the volume of the transformer oil expands due to a temperature rise in the transformer, the volume of the bag-shaped body is reduced under the action of the drive device; the pressure in the conservator body (1) is kept constant; the phenomena of cracking of the transformer oil and degradation of the insulating property of the transformer due to negative pressure inhalation of moisture are avoided; and only the conservator body (1) is not used any more, so that the safety performance of the transformer is improved; and the service lifetime of the transformer is prolonged.
Description
One, technical field
The present invention relates to a kind of oil conservator, especially a kind of oil conservator for oil-filled transformer.
Two, background technology
When transformer runs, need to carry out thermal release by transformer oil, thus ensure transformer security of operation, therefore the oil conservator for oil-filled transformer is a kind of important transformer part, existing in the oil conservator of oil-filled transformer, it is all also the cabinet of general container type, when consuming along with the transformer oil in oil conservator, oil-filled transformer runs under micro-vacuum state, the moisture air can be sucked from positions, gap such as rubber cushion connections, thus accelerate the cracking of transformer oil; Also make bushing end occur negative pressure, and suck air and moisture, reduce the insulation property of transformer.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the object of this invention is to provide a kind of oil conservator for oil-filled transformer, therefore improve the security performance of transformer and extending the life-span of transformer.
For achieving the above object, the technical scheme that the present invention takes is: include to be communicated with inside transformer and for hold transformer oil cabinet body, be arranged in cabinet body and have change volume size cystidium, be set to connect with cystidium and drive cystidium to change the drive unit of volume size.
Owing to devising cabinet body, cystidium and drive unit, when causing transformer oil volume contraction when the reduction of inside transformer temperature, under drive unit effect, cystidium volume is made to become large; When causing transformer oil volumetric expansion when the rising of transformation internal temperature, under drive unit effect, make cystidium smaller volume, keep cabinet body internal pressure constant, prevent because negative pressure causes transformer oil to suck moisture, cause the phenomenon of the insulation property of transformer oil cracking and reduction transformer, no longer only use cabinet body, therefore improve the security performance of transformer and extend the life-span of transformer.
The present invention devises, and the mode being steady state value according to the pressure of maintenance transformer oil connects cystidium and drive unit with cabinet body.
The present invention devises, and cabinet body is set to sealed container body and is set to be communicated with transformer volume chamber.
The present invention devises, and cystidium is set to pneumatophore or bellows, and drive unit is set to pneumatic type drive unit, fluid pressure type drive unit, mechanical type driving apparatus or electric driving device.
The present invention devises, drive unit is set to include relief valve, pressure-reducing valve, gas bomb, inflator pump and unidirectional valve, pneumatophore is arranged in cabinet body and pneumatophore is set to connect with the madial wall of cabinet body, a port part of pneumatophore is set to be communicated with relief valve and another port part of pneumatophore is set to be communicated with the output port of unidirectional valve, and the input port of unidirectional valve is placed through pressure-reducing valve and is communicated with gas bomb and gas bomb is set to be communicated with the output port of inflator pump.
The present invention devises, and drive unit is set to telescoping cylinder, and telescoping cylinder is arranged in bellows and the anchor portion of telescoping cylinder is set to connect with cabinet body, the retractable ends of telescoping cylinder is set to connect with the top ends of bellows.
The present invention devises, and drive unit is set to leading screw, and leading screw is arranged in bellows and leading screw is set to connect with cabinet body rotary type, leading screw is set to connect with the top ends screw-type of bellows.
The present invention devises, and drive unit is set to solenoid, solenoid is arranged in bellows and one of them solenoid is set to connect with cabinet body, wherein another solenoid be set to connect with the top ends of bellows.
The present invention devises, and pneumatophore or bellows are set to along arranged distribution on the madial wall of cabinet body.
The present invention devises, and cabinet body is set to the circumferential distribution along transformer and is provided with bellows, relief valve, pressure-reducing valve, gas bomb, inflator pump and unidirectional valve at least one cabinet body.
The present invention devises, and cabinet body is set to be vertical distribution with transformer and pneumatophore or bellows are set to connect with the madial wall of the upper end end face of cabinet body.
In the technical program, the mode of the change volume size of cystidium refers to shrinks and expansion.
In the technical program, keep that the pressure of transformer oil is the cabinet body of steady state value, cystidium and drive unit be important technical characteristic, in the technical field of the oil conservator for oil-filled transformer, have novelty, creativeness and practicality, the term in the technical program is all to make an explanation with patent documentation in the art and to understand.
Four, accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of Fig. 1 to be the schematic diagram of first embodiment of the present invention: Fig. 2 be the 3rd and the 5th embodiment of the present invention:
Fig. 3 is the schematic diagram of the 4th embodiment of the present invention:.
Five, embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is first embodiment of the present invention, illustrates the present embodiment by reference to the accompanying drawings, includes cabinet body 1, pneumatophore 2, relief valve 3, pressure-reducing valve 4, gas bomb 5, inflator pump 6 and unidirectional valve 7,
Pneumatophore 2 is arranged in cabinet body 1 and pneumatophore 2 is set to connect with the madial wall of cabinet body 1, a port part of pneumatophore 2 is set to be communicated with relief valve 3 and another port part of pneumatophore 2 is set to be communicated with the output port of unidirectional valve 7, and the input port of unidirectional valve 7 is placed through pressure-reducing valve 4 and is communicated with gas bomb 5 and gas bomb 5 is set to be communicated with the output port of inflator pump 6.
In the present embodiment, cabinet body 1 is set to sealed container body and is set to be communicated with transformer volume chamber.
When inside transformer temperature reduces and causes transformer oil volume contraction, by the gases at high pressure in gas bomb 5 by pressure-reducing valve 4 and unidirectional valve 7 to pneumatophore 2 insufflation gas, make pneumatophore 2 volume become large, keep cabinet body 1 internal pressure constant; When causing transformer oil volumetric expansion when the rising of transformation internal temperature, pneumatophore 2 mesohigh air enters in air by unidirectional valve 7, make pneumatophore 2 smaller volume, keep cabinet body 1 internal pressure constant, when the air pressure in gas bomb 5 is reduced to certain value, automatic startup inflator pump 6, supplements gases at high pressure in gas bomb 5.
Second embodiment of the present invention, includes cabinet body 1, bellows, relief valve 3, pressure-reducing valve 4, gas bomb 5, inflator pump 6 and unidirectional valve 7,
Bellows is set to alternative pneumatophore 2.
Bellows is arranged in cabinet body 1 and bellows is set to connect with the madial wall of cabinet body 1, a port part of bellows is set to be communicated with relief valve 3 and another port part of bellows is set to be communicated with the output port of unidirectional valve 7, and the input port of unidirectional valve 7 is placed through pressure-reducing valve 4 and is communicated with gas bomb 5 and gas bomb 5 is set to be communicated with the output port of inflator pump 6.
3rd embodiment of the present invention, include cabinet body 1, bellows and telescoping cylinder, telescoping cylinder is arranged in bellows and the anchor portion of telescoping cylinder is set to connect with cabinet body 1, the retractable ends of telescoping cylinder is set to connect with the top ends of bellows.
When causing transformer oil volume contraction when the reduction of inside transformer temperature, telescoping cylinder extends, and makes bellows volume become large, keeps cabinet body 1 internal pressure constant; When causing transformer oil volumetric expansion when the rising of transformation internal temperature, telescoping cylinder shrinks, and makes bellows smaller volume, keeps cabinet body 1 internal pressure constant.
4th embodiment of the present invention, includes cabinet body 1, bellows and leading screw, and leading screw is arranged in bellows and leading screw is set to connect with cabinet body 1 rotary type, leading screw is set to connect with the top ends screw-type of bellows.
When causing transformer oil volume contraction when the reduction of inside transformer temperature, leading screw rotates, and makes bellows volume become large, keeps cabinet body 1 internal pressure constant; When causing transformer oil volumetric expansion when the rising of transformation internal temperature, leading screw rotates, and makes bellows smaller volume, keeps cabinet body 1 internal pressure constant.
5th embodiment of the present invention, include cabinet body 1, bellows and solenoid, solenoid be arranged in bellows and one of them solenoid is set to connect with cabinet body 1, wherein another solenoid be set to connect with the top ends of bellows.
When causing transformer oil volume contraction when the reduction of inside transformer temperature, two solenoids produce repulsive forces, make bellows volume become large, keep cabinet body 1 internal pressure constant; When causing transformer oil volumetric expansion when the rising of transformation internal temperature, two solenoids produce attractions, make bellows smaller volume, keep cabinet body 1 internal pressure constant.
6th embodiment of the present invention, pneumatophore 2 or bellows are set to along arranged distribution on the madial wall of cabinet body 1.
7th embodiment of the present invention, cabinet body 1 is set to the circumferential distribution along transformer and is provided with bellows, relief valve 3, pressure-reducing valve 4, gas bomb 5, inflator pump 6 and unidirectional valve 7 at least one cabinet body 1.
8th embodiment of the present invention, cabinet body 1 is set to be vertical distribution with transformer and pneumatophore 2 or bellows are set to connect with the madial wall of the upper end end face of cabinet body 1.
In the above-described embodiments, the breather valve be communicated with cabinet body 1 can also be provided with, pressure monitoring device and controller can also be included for embodiment one, two, three and five, according to the pressure signal of cabinet body 1, start pressure-reducing valve 4, telescoping cylinder and solenoid by controller and carry out work, thus drive contraction and the expansion of pneumatophore 2 or bellows.
The present invention has lower feature:
1, owing to devising cabinet body 1, cystidium and drive unit, when inside transformer temperature reduces and causes transformer oil volume contraction, under drive unit effect, make cystidium volume become large; When causing transformer oil volumetric expansion when the rising of transformation internal temperature, under drive unit effect, make cystidium smaller volume, keep cabinet body 1 internal pressure constant, the phenomenon of the cracking preventing transformer oil and the insulation property reducing transformer, no longer only use cabinet body 1, therefore improve the security performance of transformer and extend the life-span of transformer.
2, owing to devising pneumatophore 2 or bellows, volume variable is large, large to the adjustable range of cabinet body 1.
3, owing to devising pneumatic type drive unit, mechanical type driving apparatus or electric driving device, the transformer needs of different places are applicable to.
4, owing to devising cabinet body 1, by the design to cabinet body 1 quantity, the transformer of different size is applicable to.
5, owing to devising cabinet body 1, it is vertical distribution that cabinet body 1 is set to transformer, improves the action effect of pneumatophore 2 or bellows.
6, owing to devising technical characteristic of the present invention, in the effect of the set separately and each other of technical characteristic, by test show, property indices of the present invention be existing property indices be at least 1.7 times, by assessment there is good market value.
What also have other is all one of embodiments of the invention with the technical characteristic keeping that the pressure of transformer oil is the cabinet body 1 of steady state value, cystidium and drive unit connect, and each technical characteristic of the above embodiment can combine arbitrarily, for meeting the requirement of Patent Law, patent regulation and guidelines for examination, no longer the embodiment of all possible combination of each technical characteristic in above-described embodiment is all described.
Therefore in the oil conservator technical field of oil-filled transformer, every include to be communicated with inside transformer and for hold transformer oil cabinet body 1, be arranged in cabinet body 1 and have change volume size cystidium, be set to connect with cystidium and drive cystidium to change the technology contents of the drive unit of volume size all in protection scope of the present invention.
Claims (10)
1., for an oil conservator for oil-filled transformer, it is characterized in that: include to be communicated with inside transformer and for hold transformer oil cabinet body (1), be arranged in cabinet body (1) and have change volume size cystidium, be set to connect with cystidium and drive cystidium to change the drive unit of volume size.
2. the oil conservator for oil-filled transformer according to claim 1, is characterized in that: the mode being steady state value according to the pressure of maintenance transformer oil connects cystidium and drive unit with cabinet body (1).
3. the oil conservator for oil-filled transformer according to claim 1, is characterized in that: cabinet body (1) is set to sealed container body and is set to be communicated with transformer volume chamber.
4. the oil conservator for oil-filled transformer according to claim 3, it is characterized in that: cystidium is set to pneumatophore (2) or bellows, drive unit is set to pneumatic type drive unit, fluid pressure type drive unit, mechanical type driving apparatus or electric driving device.
5. the oil conservator for oil-filled transformer according to claim 4, it is characterized in that: drive unit is set to include relief valve (3), pressure-reducing valve (4), gas bomb (5), inflator pump (6) and unidirectional valve (7), pneumatophore (2) is arranged in cabinet body (1) and pneumatophore (2) is set to connect with the madial wall of cabinet body (1), a port part of pneumatophore (2) is set to be communicated with relief valve (3) and another port part of pneumatophore (2) is set to be communicated with the output port of unidirectional valve (7), the input port of unidirectional valve (7) is placed through pressure-reducing valve (4) and is communicated with gas bomb (5) and gas bomb (5) is set to be communicated with the output port of inflator pump (6).
6. the oil conservator for oil-filled transformer according to claim 4, it is characterized in that: drive unit is set to telescoping cylinder, telescoping cylinder is arranged in bellows and the anchor portion of telescoping cylinder is set to connect with cabinet body (1), the retractable ends of telescoping cylinder is set to connect with the top ends of bellows.
7. the oil conservator for oil-filled transformer according to claim 4, it is characterized in that: drive unit is set to leading screw, leading screw is arranged in bellows and leading screw is set to connect with cabinet body (1) rotary type, leading screw is set to connect with the top ends screw-type of bellows.
8. the oil conservator for oil-filled transformer according to claim 4, it is characterized in that: drive unit is set to solenoid, solenoid be arranged in bellows and one of them solenoid is set to connect with cabinet body (1), wherein another solenoid be set to connect with the top ends of bellows.
9. the oil conservator for oil-filled transformer according to claim 4, is characterized in that: pneumatophore (2) or bellows are set to be set to be vertical distribution with transformer and pneumatophore (2) or bellows are set to connect with the madial wall of the upper end end face of cabinet body (1) along arranged distribution on the madial wall of cabinet body (1) or cabinet body (1).
10. the oil conservator for oil-filled transformer according to claim 4, is characterized in that: cabinet body (1) is set to the circumferential distribution along transformer and is provided with bellows, relief valve (3), pressure-reducing valve (4), gas bomb (5), inflator pump (6) and unidirectional valve (7) at least one cabinet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545029.2A CN105161254B (en) | 2015-08-31 | 2015-08-31 | Oil conservater for oil-filled transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510545029.2A CN105161254B (en) | 2015-08-31 | 2015-08-31 | Oil conservater for oil-filled transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105161254A true CN105161254A (en) | 2015-12-16 |
| CN105161254B CN105161254B (en) | 2017-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510545029.2A Active CN105161254B (en) | 2015-08-31 | 2015-08-31 | Oil conservater for oil-filled transformer |
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| Country | Link |
|---|---|
| CN (1) | CN105161254B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261386A (en) * | 2020-04-21 | 2020-06-09 | 温州市塔星电子科技有限公司 | Oil filling device of oil-immersed transformer |
| CN111667984A (en) * | 2020-07-01 | 2020-09-15 | 广东电网有限责任公司 | Pressure regulating device and total station system |
| CN112382475A (en) * | 2020-09-22 | 2021-02-19 | 北京华柏思科技有限公司 | Bellows type respirator and transformer oil storage tank |
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| DE2304338A1 (en) * | 1973-01-30 | 1974-08-01 | Ritz Messwandler Gmbh | EXPANSION BODY FOR HIGH VOLTAGE DEVICES |
| CN2645194Y (en) * | 2003-07-28 | 2004-09-29 | 邵为 | Out oil type expander |
| CN201877249U (en) * | 2010-10-23 | 2011-06-22 | 刘立忠 | Oil conservator of oil immersed type transformer |
| CN203950643U (en) * | 2014-07-21 | 2014-11-19 | 红旗集团温州变压器有限公司 | Oil-filled transformer conservator |
| CN204480848U (en) * | 2015-03-07 | 2015-07-15 | 孙艺夫 | Outer oily vertical metal bellow oil conservator |
| CN205016337U (en) * | 2015-08-31 | 2016-02-03 | 山东五岳电器有限公司 | A oil conservater for oil -immersed transformer |
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2015
- 2015-08-31 CN CN201510545029.2A patent/CN105161254B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2304338A1 (en) * | 1973-01-30 | 1974-08-01 | Ritz Messwandler Gmbh | EXPANSION BODY FOR HIGH VOLTAGE DEVICES |
| CN2645194Y (en) * | 2003-07-28 | 2004-09-29 | 邵为 | Out oil type expander |
| CN201877249U (en) * | 2010-10-23 | 2011-06-22 | 刘立忠 | Oil conservator of oil immersed type transformer |
| CN203950643U (en) * | 2014-07-21 | 2014-11-19 | 红旗集团温州变压器有限公司 | Oil-filled transformer conservator |
| CN204480848U (en) * | 2015-03-07 | 2015-07-15 | 孙艺夫 | Outer oily vertical metal bellow oil conservator |
| CN205016337U (en) * | 2015-08-31 | 2016-02-03 | 山东五岳电器有限公司 | A oil conservater for oil -immersed transformer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261386A (en) * | 2020-04-21 | 2020-06-09 | 温州市塔星电子科技有限公司 | Oil filling device of oil-immersed transformer |
| CN111261386B (en) * | 2020-04-21 | 2020-11-27 | 山东颐德电气设备工程有限公司 | Oil filling device of oil-immersed transformer |
| CN111667984A (en) * | 2020-07-01 | 2020-09-15 | 广东电网有限责任公司 | Pressure regulating device and total station system |
| CN111667984B (en) * | 2020-07-01 | 2021-07-27 | 广东电网有限责任公司 | Pressure regulating device and total station system |
| CN112382475A (en) * | 2020-09-22 | 2021-02-19 | 北京华柏思科技有限公司 | Bellows type respirator and transformer oil storage tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105161254B (en) | 2017-08-11 |
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Inventor after: Zhang Guodong Inventor after: Song Weifeng Inventor after: Liu Qiang Inventor after: Zhu Hengcheng Inventor before: Song Weifeng Inventor before: Zhang Guodong |
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