CN114242394A - Join in marriage and become tank-type oil storage pressure release indicator - Google Patents
Join in marriage and become tank-type oil storage pressure release indicator Download PDFInfo
- Publication number
- CN114242394A CN114242394A CN202111327519.7A CN202111327519A CN114242394A CN 114242394 A CN114242394 A CN 114242394A CN 202111327519 A CN202111327519 A CN 202111327519A CN 114242394 A CN114242394 A CN 114242394A
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- oil
- oil storage
- transformer
- pressure release
- storage cavity
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- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 16
- 230000008901 benefit Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a distribution transformer tank type oil storage and pressure release indicator which comprises an oil storage cavity communicated with the inside of an oil immersed type fully sealed transformer body, wherein the oil storage cavity can be used for arranging transformer oil. The oil storage transformer has the advantages that the oil storage is realized, the transformer body is full of oil, the iron core, the winding and the tap switch tap caused by oil shortage are prevented from being affected with damp and aged when being exposed in air, and the transformer is burnt out due to temperature rise during high-load operation; meanwhile, the pressure (fault gas inside the transformer) is released, and the oil level is indicated; by additionally arranging the rain skirt, the condition that the turn-to-turn short circuit of the C-phase winding is burnt out due to the fact that rainwater and humid air enter the transformer can be prevented.
Description
Technical Field
The invention relates to the field of transformers, in particular to a distribution transformer tank type oil storage pressure release indicator.
Background
The oil-immersed type fully-sealed transformer is mainly operated in a distribution network system, a YW type series tubular oil level indicator is generally used on an oil tank shell of the oil-immersed type fully-sealed transformer and is installed on the upper portion of an oil tank cover of the transformer and used for displaying whether the oil level in an oil tank is normal or not, a pressure release valve is installed at the top end of the YW type series tubular oil level indicator, and when the pressure in the oil tank rises to the opening pressure of the release valve, the release valve is rapidly opened to release the pressure, so that danger is prevented.
However, the oil-immersed fully-sealed transformer winding has a high failure rate, and the transformer winding is installed right below the YW-type series tubular oil level indicator, so it has been researched that one of the reasons for the high failure rate of the transformer winding is that: the oil immersed transformer is in the operation owing to do not have special moisture absorption respirator equipment, when balanced transformer tank internal pressure, the pressure release valve that release pressure leaned on YW type series tubular oil level indicator upper portion, when transformer load was high, the oil temperature risees and leads to the oil temperature to rise, when pressure release valve opened, there is a certain amount of transformer oil blowout transformer, lead to transformer oil's loss, when night, because the load diminishes, the oil temperature descends in the oil tank, combine transformer oil's loss, lead to the oil level to descend to below the C phase winding coil, and then lead to the unable cooling of C phase winding coil, finally lead to the seriously impaired condition of C phase winding coil.
Disclosure of Invention
The invention aims to provide a distribution transformer tank type oil storage pressure release indicator aiming at the problem that a C-phase winding coil of the existing oil-immersed fully-sealed transformer is easy to be seriously damaged.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a join in marriage change pot-type oil storage pressure release indicator, includes the oil storage chamber that is linked together with the inside of oily formula totally enclosed transformer body, the oil storage chamber can be used to set up transformer oil.
Through the technical means, because the oil storage cavity is communicated with the inside of the oil-immersed type fully-sealed transformer body, the transformer oil with proper volume can be arranged in the transformer body, the oil storage cavity is not filled with the transformer oil, a certain margin is reserved in the oil storage cavity, when the oil temperature is increased due to the rise of the transformer load, the volume of the transformer oil is increased, and further when the oil storage cavity is communicated with the outside in order to balance the pressure inside and outside the transformer, the volume of the increased transformer oil fills partial margin, the loss of the transformer oil is avoided, when the oil temperature is reduced due to the reduction of the load, the transformer oil in the oil storage cavity can be supplemented into the oil-immersed type fully-sealed transformer body, so that the C-phase winding coil is always moistened in the transformer oil, and the phenomenon that the C-phase winding coil cannot be cooled is avoided. Furthermore, the risk of damage of a coil of the C-phase winding is reduced, the iron core, the winding and a tap switch are prevented from being lack of oil, the tap switch is exposed in the air and is subjected to damp aging, and the transformer is burnt out due to temperature rise during high-load operation.
Further, the oil storage cavity is arranged at the top of the oil-immersed type full-sealed transformer body, and the bottom of the oil storage cavity is communicated with the inside of the oil-immersed type full-sealed transformer body.
According to the technical means, when the volume of the transformer oil is increased due to the fact that the oil temperature of the transformer oil is increased, gravity movement needs to be overcome, the increasing speed is slow, when the oil temperature of the transformer oil is reduced, the volume of the transformer oil is reduced, and oil needs to be supplemented inside the transformer, the transformer oil inside the oil storage cavity can enter the transformer under the action of gravity, and oil supplementing efficiency is improved.
Further, the oil storage chamber is also provided with a pressure relief valve, and when the pressure relief valve is opened, the oil storage chamber is communicated with the outside.
According to the technical means, when the load of the oil immersed type totally-enclosed transformer body rises, the pressure release valve can be opened to release fault gas in the transformer, and the transformer is prevented from being damaged.
Further, a rain skirt is arranged at the top of the pressure release valve, and the rain skirt covers the pressure release valve in the vertical direction.
According to the technical means, when the pressure release valve is opened, rainwater is prevented from entering the oil-immersed totally-enclosed transformer body when raining, so that the coil iron core, the tap switch and the coil tap can be exposed in the air to be affected with damp, the contact surface between oil and the air is enlarged, and the oil is oxidized to accelerate the aging of the oil seriously.
Furthermore, the part of the oil storage cavity is an observation window which is made of transparent materials.
According to the technical means, the volume of the transformer oil in the oil storage cavity can be observed conveniently, and oil can be supplemented conveniently and timely.
Further, the observation window extends towards the vertical direction, and the observation window is provided with the scale.
According to the technical means, the oil level can be conveniently indicated.
Further, the oil storage cavity is fixed on a base, and the base is installed at the top of the oil-immersed type full-sealed transformer body.
Further, a communicating pipeline is arranged between the base and the oil storage cavity, one end of the communicating pipeline is communicated with the oil storage cavity, and the other end of the communicating pipeline is communicated with the inside of the oil-immersed type full-sealed transformer body.
Compared with the prior art, the invention has the beneficial effects that:
the invention avoids the situation that transformer oil runs off due to the fact that transformer oil flows to the outside when the load of the oil-immersed type full-sealed transformer body rises, and meanwhile, oil can be supplemented inside the oil-immersed type full-sealed transformer body in time, so that the risk of damage of a C-phase winding coil is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Description of the drawings:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the principle of the present invention.
The labels in the figure are: 1-an oil immersed totally-enclosed transformer body, 2-an oil storage cavity, 3-a pressure relief valve and 4-a rain skirt; 5-communicating pipe; 6-a base; 7-observation window.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal," "length," "circumferential," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The embodiment provides a join in marriage and become tank-type oil storage pressure release indicator, as shown in fig. 1, including the totally closed transformer body of oily formula 1, the top of the totally closed transformer body of oily formula 1 is equipped with oil storage chamber 2, and oil storage chamber 2 communicates with the totally closed transformer body of oily formula 1, and is specific: the oil storage cavity 2 is communicated with the oil-immersed type fully-closed transformer body 1 through a communicating pipe 5, and the communicating pipe 5 penetrates through the base 6.
The transformer oil is arranged in the oil storage cavity 2, but the oil storage cavity 2 is not filled with the transformer oil, so a certain margin is also arranged in the oil storage cavity 2, the margin is a space which does not contain the transformer oil in the oil storage cavity 2, and the space is positioned at the upper part of the transformer oil.
The pressure relief valve 3 is installed at the top of the oil storage cavity 2, when the pressure inside the oil immersed type fully-closed transformer body 1 is too large, the pressure relief valve 3 is opened, the oil storage cavity 2 is communicated with the outside, the pressure inside and outside the oil immersed type fully-closed transformer body 1 can be balanced, and when the pressure relief valve 3 is closed, the oil storage cavity 2 is only communicated with the oil immersed type fully-closed transformer body 1.
The amount of the transformer oil in the oil storage cavity 2 is proper, when the load of the oil-immersed fully-closed transformer body 1 is the maximum, the volume of the transformer oil is the maximum due to expansion of the transformer oil in the oil storage cavity 2, partial allowance is filled in the increased volume, and the situation that the pressure release valve 3 is opened and the transformer oil flows to the outside is avoided; when the load of the oil-immersed fully-closed transformer body 1 is minimum, so that the volume of the transformer oil in the oil-immersed fully-closed transformer body 1 is reduced, the transformer oil in the oil storage cavity 2 enters the oil-immersed fully-closed transformer body 1, the C-phase winding coil can be submerged by the part of the transformer oil, the C-phase winding coil can be cooled, and the risk of damage to the oil-immersed fully-closed transformer body 1 is reduced.
The part of oil storage chamber 2 is observation window 7, and observation window 7 extends towards vertical direction, and observation window 7 is made for transparent material, and is equipped with the scale on the observation window 7 for the capacity of the inside transformer oil of oil storage chamber 2 is observed, the timely benefit oil of being convenient for.
The top of pressure release valve 3 is equipped with rain skirt 4, and in vertical direction, rain skirt 4 has covered pressure release valve 3, avoids in the rainy day, or the season that the air is moist, and when pressure release valve 3 opened, the water droplet got into the inside of the totally closed transformer body 1 of oily formula of oil-immersed, leads to coil core, tap switch and coil to take a percentage and will expose and wet in the air, increases the contact surface of oil and air, makes its oxidation seriously accelerate ageing of oil.
In this embodiment, through setting up rain skirt 4, avoid the drop of water in rainwater and the air to get into in the totally closed transformer body 1 of oily formula, make the oil mass in the oil storage chamber 2 satisfy the transformer and all fill up oil in oil tank and the sleeve pipe under daily temperature and running condition simultaneously, the slight oil impregnate of oil tank can in time be replenished, reduce the contact surface of oil and air, make the chance that oil wets and oxidizes reduce, be favorable to slowing down ageing of oil, there is observation window 7 on the oil storage chamber 2, the oil level in the oil storage chamber 2 uses the lift as the movement track, show the height of transformer oil level.
Furthermore, the structure enables moisture not to enter the oil tank easily, ensures good heat dissipation and insulation performance of the transformer, reduces the occurrence of insulation damage faults of the transformer, and ensures safe and reliable operation of the power distribution network.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a join in marriage and become tank-type oil storage pressure release indicator which characterized in that: the oil storage cavity is communicated with the inside of the oil-immersed type full-sealed transformer body and can be used for containing transformer oil.
2. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 1, wherein: the oil storage cavity is arranged at the top of the oil-immersed type full-sealed transformer body, and the bottom of the oil storage cavity is communicated with the inside of the oil-immersed type full-sealed transformer body.
3. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 2, wherein: the oil storage cavity is also provided with a pressure relief valve, and when the pressure relief valve is opened, the oil storage cavity is communicated with the outside.
4. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 3, wherein: the top of the pressure release valve is provided with a rain skirt, and the rain skirt covers the pressure release valve in the vertical direction.
5. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 4, wherein: the part of oil storage chamber is the observation window, the observation window is made for transparent material.
6. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 5, wherein: the observation window extends towards the vertical direction, and the observation window is provided with scales.
7. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 5, wherein: the oil storage cavity is fixed on the base, and the base is installed at the top of the oil-immersed type full-sealed transformer body.
8. The tank type oil storage pressure release indicator of the distribution transformer as claimed in claim 5, wherein: and a communicating pipeline is arranged between the base and the oil storage cavity, one end of the communicating pipeline is communicated with the oil storage cavity, and the other end of the communicating pipeline is communicated with the inside of the oil-immersed type full-sealed transformer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111327519.7A CN114242394A (en) | 2022-02-16 | 2022-02-16 | Join in marriage and become tank-type oil storage pressure release indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111327519.7A CN114242394A (en) | 2022-02-16 | 2022-02-16 | Join in marriage and become tank-type oil storage pressure release indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114242394A true CN114242394A (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111327519.7A Pending CN114242394A (en) | 2022-02-16 | 2022-02-16 | Join in marriage and become tank-type oil storage pressure release indicator |
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| CN (1) | CN114242394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115432319A (en) * | 2022-09-28 | 2022-12-06 | 贵州电网有限责任公司 | Universal multifunctional oil level indicator for transformer |
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| CN2669331Y (en) * | 2004-05-13 | 2005-01-05 | 安徽鑫龙电器股份有限公司 | Oil-injection device of fully-sealed corrugated oil tank type electric transformer |
| CN200975532Y (en) * | 2006-09-26 | 2007-11-14 | 孙延宏 | Waterproof type pressure-release valve for transformer device |
| CN105244144A (en) * | 2015-11-20 | 2016-01-13 | 济南清河电气有限公司 | Minitype combined type oil conservator for omniseal oil-immersed transformer |
| CN205122340U (en) * | 2015-11-20 | 2016-03-30 | 济南清河电气有限公司 | Totally enclosed oil -immersed transformer stores up oil tank with miniature combined type |
| CN106158271A (en) * | 2015-03-25 | 2016-11-23 | 舒均盛 | The hermetically sealed oil conservater of capsule-type with big blow vent |
| CN208093322U (en) * | 2018-03-29 | 2018-11-13 | 广东广特电气股份有限公司 | A kind of 35kV grades of full-sealed transformer oil storing tube |
| CN208315367U (en) * | 2018-06-13 | 2019-01-01 | 沈阳汇众通用机械有限公司 | A kind of Full-enclosed oil-immersed transformer multifunctional protection device |
| CN209675042U (en) * | 2019-05-16 | 2019-11-22 | 山东泰开箱变有限公司 | Distribution transformer pressure relief valve formula rain cover |
| CN112556796A (en) * | 2020-06-22 | 2021-03-26 | 江苏华辰变压器股份有限公司 | Multifunctional oil level indicator for liquid immersed transformer |
| CN112824840A (en) * | 2019-11-21 | 2021-05-21 | 中国石油天然气股份有限公司 | Oil level indicator |
-
2022
- 2022-02-16 CN CN202111327519.7A patent/CN114242394A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2669331Y (en) * | 2004-05-13 | 2005-01-05 | 安徽鑫龙电器股份有限公司 | Oil-injection device of fully-sealed corrugated oil tank type electric transformer |
| CN200975532Y (en) * | 2006-09-26 | 2007-11-14 | 孙延宏 | Waterproof type pressure-release valve for transformer device |
| CN106158271A (en) * | 2015-03-25 | 2016-11-23 | 舒均盛 | The hermetically sealed oil conservater of capsule-type with big blow vent |
| CN105244144A (en) * | 2015-11-20 | 2016-01-13 | 济南清河电气有限公司 | Minitype combined type oil conservator for omniseal oil-immersed transformer |
| CN205122340U (en) * | 2015-11-20 | 2016-03-30 | 济南清河电气有限公司 | Totally enclosed oil -immersed transformer stores up oil tank with miniature combined type |
| CN208093322U (en) * | 2018-03-29 | 2018-11-13 | 广东广特电气股份有限公司 | A kind of 35kV grades of full-sealed transformer oil storing tube |
| CN208315367U (en) * | 2018-06-13 | 2019-01-01 | 沈阳汇众通用机械有限公司 | A kind of Full-enclosed oil-immersed transformer multifunctional protection device |
| CN209675042U (en) * | 2019-05-16 | 2019-11-22 | 山东泰开箱变有限公司 | Distribution transformer pressure relief valve formula rain cover |
| CN112824840A (en) * | 2019-11-21 | 2021-05-21 | 中国石油天然气股份有限公司 | Oil level indicator |
| CN112556796A (en) * | 2020-06-22 | 2021-03-26 | 江苏华辰变压器股份有限公司 | Multifunctional oil level indicator for liquid immersed transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115432319A (en) * | 2022-09-28 | 2022-12-06 | 贵州电网有限责任公司 | Universal multifunctional oil level indicator for transformer |
| CN115432319B (en) * | 2022-09-28 | 2024-04-16 | 贵州电网有限责任公司 | General type multifunctional oil level indicator for transformer |
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