CN109841386B - Internal oil type metal corrugated oil storage cabinet with one-way valve and micro-positive pressure characteristic - Google Patents
Internal oil type metal corrugated oil storage cabinet with one-way valve and micro-positive pressure characteristic Download PDFInfo
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- CN109841386B CN109841386B CN201711212393.2A CN201711212393A CN109841386B CN 109841386 B CN109841386 B CN 109841386B CN 201711212393 A CN201711212393 A CN 201711212393A CN 109841386 B CN109841386 B CN 109841386B
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- oil
- core body
- corrugated core
- oil container
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to an internal oil type metal corrugated oil storage cabinet with a one-way valve and micro-positive pressure characteristics, which comprises a cabinet body and a corrugated core body arranged in the cabinet body, wherein an oil container which is arranged on an upper sealing plate and forms micro-positive pressure on the corrugated core body is arranged in the corrugated core body; and the upper sealing plate is respectively provided with an exhaust pipeline communicated with the inside of the corrugated core body and the inside of the oil container, and the lower sealing plate of the corrugated core body is provided with an oil delivery pipeline communicated with the transformer oil tank to form a fully-sealed oil circuit system. The invention can protect the upper sealing plate from deformation no matter when the inside of the corrugated core body is positive or negative, the oil container forms micro positive pressure for the corrugated core body, and the invention can replace the counter weight on the original corrugated core body and the pressure protection device inside the corrugated core body by one top two.
Description
Technical Field
The invention relates to a volume change compensation device for transformer and power equipment, in particular to an internal oil type metal corrugated oil conservator with a one-way valve and micro positive pressure characteristics.
Background
At present, in order to obtain the working state of micro positive pressure and prevent deformation of products when the products bear positive pressure, an inner oil type metal corrugated oil storage cabinet used for power equipment configuration is required to be provided with a counterweight plate similar to the upper sealing plate in shape on the upper sealing plate. Meanwhile, in order to ensure that the product is not deformed during negative pressure pumping detection and transportation, a pressure protection device is arranged on a lower sealing plate of the product, so that the problems of low production efficiency and high production cost exist.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the internal oil type metal corrugated oil storage cabinet with the check valve and the micro-positive pressure characteristic. The internal oil type metal corrugated oil storage cabinet with the non-return valve has the advantages that an original heavy metal block and an original pressure protection device are omitted, and the micro-positive pressure is formed on the corrugated core body on the basis that the sealing plate is prevented from deforming under the positive pressure and the negative pressure by utilizing an oil container arranged in the corrugated core body.
The aim of the invention is realized by the following technical scheme:
the oil filling device comprises a cabinet body and a corrugated core body arranged in the cabinet body, wherein an oil filling container which is arranged on an upper sealing plate and forms micro-positive pressure on the corrugated core body is arranged in the corrugated core body, a one-way valve which can only flow into the oil filling container is arranged on the oil filling container, and oil of the corrugated core body during oiling before the operation of a transformer is injected into the oil filling container through the one-way valve; the upper sealing plate is provided with an exhaust pipeline which is respectively communicated with the inside of the corrugated core body and the inside of the oil container, and the lower sealing plate of the corrugated core body is provided with an oil conveying pipeline which is communicated with the oil tank of the transformer to form a fully-sealed oil circuit system;
wherein: the height of the oil container is equal to the height of the corrugated core body when the corrugated core body is closed;
the oil container is divided into a plurality of spaces by upright ribs, through holes are formed in the upright ribs, and the spaces are mutually communicated through the through holes;
the vertical ribs are divided into transverse ribs arranged along the length direction of the oil container and vertical ribs arranged along the width direction of the oil container, and the transverse ribs and the vertical ribs are arranged in a grid shape;
the horizontal projection of the position of the exhaust pipeline is positioned inside the oil container and outside the oil container and inside the corrugated core body.
The invention has the advantages and positive effects that:
1. according to the invention, the oil container arranged on the upper sealing plate is arranged in the corrugated core body, no matter when the inside of the corrugated core body is positive or negative, the sealing plate can be protected from deformation, the oil container forms micro positive pressure for the corrugated core body, oil can be injected into the oil container when the oil is injected before the transformer operates, the oil in the corrugated core body can be leaked out when an oil pipeline connected with the transformer of the cabinet body is leaked, the oil in the oil container can be prevented from leaking, the weight of the oil in the oil container can compress the corrugated core body to be closed, and the lower limit alarm can be realized.
2. The oil container is internally provided with the vertical ribs, so that the deformation of the upper sealing plate can be effectively prevented.
3. The invention can replace the counter weight on the original corrugated core body and the pressure protection device in the corrugated core body, thereby reducing the production cost and the product cost by one-to-two, and saving a great amount of funds.
Drawings
FIG. 1 is a cross-sectional view of the internal structure of the present invention;
FIG. 2 is an internal cross-sectional view of the oil container of the present invention;
FIG. 3 is a top plan view of the corrugated core and its inner oil container according to the present invention;
wherein: 1 is a cabinet body, 2 is a corrugated core body, 3 is an upper sealing plate, 4 is a container for containing oil, 5 is a stud, 6 is an exhaust pipeline, 7 is an oil level indicating device, 8 is an oil level observation window, 9 is a lower sealing plate, 10 is an oil delivery pipeline, 11 is a one-way valve, 12 is a lower limit alarm switch, 13 is an upper limit alarm switch, 14 is a feeler lever, and 15 is a through hole.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the invention comprises a cabinet body 1 and a corrugated core body 2 arranged in the cabinet body 1, wherein an oil container 4 is arranged in the corrugated core body 2, and the oil container 4 is arranged on the lower surface of an upper sealing plate 3; the shape of the oil container 4 of this embodiment is designed to be the same as the shape of the upper seal plate 3, and the center line in the height direction is collinear with the center line in the height direction of the corrugated core body 2.
The side plate of the oil container 4 is provided with a connecting hole with the same aperture as the oil pipeline 10, and a one-way valve 11 which can only flow into the oil container 4 is arranged at the connecting hole. When the corrugated core 2 is filled with oil before the operation of the transformer, the oil is injected into the oil container 4 through the one-way valve 11, and the oil container 4 forms micro-positive pressure on the corrugated core 2.
As shown in fig. 2, the oil container 4 is partitioned into a plurality of spaces by a stud 5, and the stud 5 is provided with a through hole 15, and the spaces are communicated with each other through the through hole 15. The vertical ribs 5 are divided into transverse ribs arranged along the length direction of the oil container 4 and vertical ribs arranged along the width direction of the oil container 4, and the transverse ribs and the vertical ribs are arranged in a grid shape. The transverse ribs and the vertical ribs arranged inside the oil container 4 are combined with the oil container 4, so that the deformation of the upper sealing plate 3 can be effectively prevented. The height of the oil container 4 is equal to the height of the corrugated core body 2 when closed.
As shown in fig. 1 and 3, the upper sealing plate 3 is provided with an exhaust pipeline 6 communicated with the inside of the corrugated core 2 and the inside of the oil container 4 respectively, and is used for exhausting gas in the corrugated core 2 and the inside of the oil container 4, and the horizontal projections of the positions of the two exhaust pipelines 6 are respectively positioned in the inside of the oil container 4 and the outside of the oil container 4 and in the inside of the corrugated core 2; that is, the spaces in the oil container 4 are communicated with each other and the inside of the corrugated core body 2 is communicated with each other through the one-way valve 11, so that the gas in the corrugated core body 2 can be discharged through the exhaust pipeline 6 positioned in the oil container 4 by horizontal projection after passing through the oil container 4; at the same time, the gas inside the corrugated core 2 can also be discharged through the exhaust pipeline 6 which is positioned outside the oil container 4 in the horizontal projection and inside the corrugated core 2. The lower sealing plate 9 of the corrugated core body 2 is provided with an oil pipeline 10 communicated with the transformer oil tank, so that a real full-sealed oil circuit system is formed.
An oil level indicating device 7 is arranged at the edge of one side of the axial section of the upper sealing plate 3, an oil level observation window 8 for observing the oil level indicating device 7 is arranged on the cabinet body 1, and the oil level indicating device 7 is positioned at one side close to the oil level observation window 8. When the oil level change monitoring device is in operation, the oil level change of the oil storage cabinet can be intuitively and accurately observed through the oil level observation window 8 on the cabinet body 1; the oil level indicating device 7 of the present embodiment may be an oil level pointer.
The feeler lever 14 is mounted on the other side edge of the axial section of the upper sealing plate 3. An upper limit alarm switch 13 and a lower limit alarm switch 12 are respectively arranged on the inner wall of the cabinet body 1, and the upper limit alarm switch 13 and the lower limit alarm switch 12 are positioned on a track route that the feeler lever 14 ascends and descends along with the corrugated core body 2.
The working principle of the embodiment is as follows:
the invention adopts the structure of the oil container 4 with the same shape as the upper sealing plate 3 on the lower surface of the upper sealing plate 3, the inside of the corrugated core body 2 is communicated with the inside of the oil container 4 through the one-way valve 11, and the height of the oil container 4 is equal to the height of the corrugated core body 2 when the corrugated core body 2 is closed, so the invention can play the role of a pressure protection device. Oil of the corrugated core body 2 during oiling before the operation of the transformer is injected into the oil container 4 through the one-way valve 11, the dead weight of the oil container 4 and the injected oil overcome the buoyancy of the oil in the corrugated core body 2, and the oil container 4 can generate micro positive pressure on the corrugated core body 2, so that the transformer keeps a working state of micro positive pressure during the operation. Once the oil pipeline 10 leaks, the oil in the corrugated core body 2 can leak light gradually, the oil in the oil container 4 cannot leak, the weight of the oil in the oil container 4 can force the corrugated core body 2 to be closed, and then the lower limit alarm switch 12 is used for alarming, so that the safe operation of the whole transformer system is ensured. Moreover, the oil container 4 of the present embodiment can protect the upper sealing plate 3 from deformation no matter when the inside of the corrugated core 2 is positive or negative.
Claims (4)
1. The utility model provides a take interior oily formula metal ripple oil conservator that has pressure characteristics a little of check valve, includes the cabinet body and arranges this internal ripple core of cabinet, its characterized in that: the inside of the corrugated core body (2) is provided with an oil container (4) which is arranged on the upper sealing plate (3) and forms micro-positive pressure on the corrugated core body (2), the oil container (4) is provided with a one-way valve (11) which can only flow into the oil container (4), and oil of the corrugated core body (2) during oiling before the operation of the transformer is injected into the oil container (4) through the one-way valve (11); an exhaust pipeline (6) which is respectively communicated with the inside of the corrugated core body (2) and the inside of the oil container (4) is arranged on the upper sealing plate (3), and an oil delivery pipeline (10) which is communicated with the oil tank of the transformer is arranged on the lower sealing plate (9) of the corrugated core body (2) to form a fully-sealed oil path system;
the oil container (4) is divided into a plurality of spaces by the studs (5), the studs (5) are provided with through holes (15), and the spaces are mutually communicated through the through holes (15).
2. The internal oil type metal corrugated oil conservator with the non-return valve and micro positive pressure characteristic as set forth in claim 1, wherein: the height of the oil container (4) is equal to the height of the corrugated core body (2) when the corrugated core body is closed.
3. The internal oil type metal corrugated oil conservator with the non-return valve and micro positive pressure characteristic as set forth in claim 1, wherein: the vertical ribs (5) are divided into transverse ribs arranged along the length direction of the oil container (4) and vertical ribs arranged along the width direction of the oil container (4), and the transverse ribs and the vertical ribs are arranged in a grid shape.
4. The internal oil type metal corrugated oil conservator with the non-return valve and micro positive pressure characteristic as set forth in claim 1, wherein: the horizontal projection of the position of the exhaust pipeline (6) is positioned inside the oil container (4) and outside the oil container (4) and inside the corrugated core body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212393.2A CN109841386B (en) | 2017-11-28 | 2017-11-28 | Internal oil type metal corrugated oil storage cabinet with one-way valve and micro-positive pressure characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212393.2A CN109841386B (en) | 2017-11-28 | 2017-11-28 | Internal oil type metal corrugated oil storage cabinet with one-way valve and micro-positive pressure characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109841386A CN109841386A (en) | 2019-06-04 |
| CN109841386B true CN109841386B (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711212393.2A Active CN109841386B (en) | 2017-11-28 | 2017-11-28 | Internal oil type metal corrugated oil storage cabinet with one-way valve and micro-positive pressure characteristic |
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| Country | Link |
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| CN (1) | CN109841386B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804666U (en) * | 2010-08-19 | 2011-04-20 | 于孝增 | Stepped combined metal bellows oil conservator |
| CN104779036A (en) * | 2015-04-18 | 2015-07-15 | 孙艺夫 | Vertical outer-oil metal corrugated oil conservator suitable for transportation and transport method thereof |
| CN204632518U (en) * | 2015-05-05 | 2015-09-09 | 常州苏润机械有限公司 | Installation for transformer |
| CN205542282U (en) * | 2016-01-19 | 2016-08-31 | 沈阳海为电力装备股份有限公司 | Concave type corrugated metal stores up oil tank |
| CN205789407U (en) * | 2016-05-24 | 2016-12-07 | 沈阳海为电力装备股份有限公司 | Inner oil type metal bellow oil conservator |
| CN206301669U (en) * | 2016-12-23 | 2017-07-04 | 山东五岳电器有限公司 | For the oil storage cabinet device of transformer |
| CN207624502U (en) * | 2017-11-28 | 2018-07-17 | 沈阳海为电力装备股份有限公司 | The inner oil type metal bellow oil conservator with micro-positive pressure characteristic with check valve |
-
2017
- 2017-11-28 CN CN201711212393.2A patent/CN109841386B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201804666U (en) * | 2010-08-19 | 2011-04-20 | 于孝增 | Stepped combined metal bellows oil conservator |
| CN104779036A (en) * | 2015-04-18 | 2015-07-15 | 孙艺夫 | Vertical outer-oil metal corrugated oil conservator suitable for transportation and transport method thereof |
| CN204632518U (en) * | 2015-05-05 | 2015-09-09 | 常州苏润机械有限公司 | Installation for transformer |
| CN205542282U (en) * | 2016-01-19 | 2016-08-31 | 沈阳海为电力装备股份有限公司 | Concave type corrugated metal stores up oil tank |
| CN205789407U (en) * | 2016-05-24 | 2016-12-07 | 沈阳海为电力装备股份有限公司 | Inner oil type metal bellow oil conservator |
| CN206301669U (en) * | 2016-12-23 | 2017-07-04 | 山东五岳电器有限公司 | For the oil storage cabinet device of transformer |
| CN207624502U (en) * | 2017-11-28 | 2018-07-17 | 沈阳海为电力装备股份有限公司 | The inner oil type metal bellow oil conservator with micro-positive pressure characteristic with check valve |
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| CN109841386A (en) | 2019-06-04 |
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