CN112164569B - Oil tank pickling process for oil-immersed transformer - Google Patents
Oil tank pickling process for oil-immersed transformer Download PDFInfo
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- CN112164569B CN112164569B CN202011035655.4A CN202011035655A CN112164569B CN 112164569 B CN112164569 B CN 112164569B CN 202011035655 A CN202011035655 A CN 202011035655A CN 112164569 B CN112164569 B CN 112164569B
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- oil
- hole
- oil tank
- tank
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of production of transformer oil tanks, and particularly discloses an oil tank pickling process for an oil immersed transformer. By adopting the scheme in the patent, a discharge hole is not required to be formed in the bottom of the tank, so that the sealing performance of the oil tank can be improved, and the scheme in the application is suitable for pickling the transformer shell below 250 KV.
Description
Technical Field
The invention relates to the technical field of production of transformer oil tanks, in particular to an oil-immersed transformer oil tank pickling process.
Background
The oil-immersed transformer is one of important equipment in power supply and distribution systems of industrial and mining enterprises and civil buildings, an oil sample needs to be regularly placed and taken in the operation process of the oil-immersed transformer, the performance of transformer oil is detected, therefore, an oil sample valve needs to be installed on the lower portion of an oil tank of the oil-immersed transformer and is communicated with the oil tank of the transformer, and the oil sample valve can possibly become an oil leakage point of the transformer due to processing and installation reasons.
The oil tank shell needs to be pickled before the painting process, and in order to enable pickling solution to be quickly discharged from the interior of the oil tank body, the existing process is generally that a discharge hole is formed in the bottom of the oil tank body, so that although the pickling solution can be quickly discharged from the oil tank after the pickling process is finished, oil leakage points of the oil tank are further increased.
Disclosure of Invention
The invention provides an oil tank pickling process for an oil-immersed transformer, which aims to solve the problem that in the prior art, the bottom of a tank body is provided with a discharge hole, so that oil leakage points of an oil tank are increased.
In order to achieve the purpose, the technical scheme of the invention is as follows:
oil-immersed transformer oil tank pickling technology, the oil tank of treating the pickling includes tank wall, the bottom of the case and case lid, is equipped with the preformed hole on the case lid, is equipped with the mounting hole on the tank wall, and the mounting hole is used for connecting the oil tank valve, with the oil tank vertical put into the pickle, wherein the case lid up, inside the pickle enters into the oil tank from preformed hole and mounting hole, the pickling accomplished the back, with the oil tank to mounting hole lopsidedness, make the inside pickle of oil tank discharge from the mounting hole.
The technical principle and the effect of the technical scheme are as follows:
by adopting the scheme, after the pickling of the oil tank is finished, the oil tank is inclined towards one side of the mounting hole, so that the pickling solution in the oil tank can be directly discharged from the mounting hole, therefore, the scheme in the application does not need to provide a discharge hole at the bottom of the tank, the sealing performance of the oil tank can be improved, and the scheme in the application is suitable for pickling of transformer shells below 250 KV.
Further, the inboard of tank wall is equipped with the thickening plate, the thickening plate includes riser and swash plate, and the swash plate is fixed in the bottom of riser, and the riser is fixed in the inboard of tank wall, and the low side welding of swash plate is on the bottom of the tank, and the mounting hole link up tank wall and riser.
Has the advantages that: after the pickling is completed, the inclined plate plays a role in guiding flow, so that pickling solution in the oil tank can be drained completely, and residues of the pickling solution in the oil tank are reduced.
Furthermore, the mounting hole is a threaded hole, and the oil tank valve is in threaded connection in the mounting hole.
Has the advantages that: this facilitates the installation of the tank flap.
Furthermore, a closed cavity is formed between the thickened plate and the box bottom.
Has the advantages that: the arrangement prevents the pickling solution from entering between the thickened plate and the box bottom, thereby reducing residues.
Furthermore, the box wall and the box bottom at the cavity are in round corner transition.
Has the advantages that: because when the pickle in the discharge oil tank, the oil tank need be to mounting hole one side slope, consequently will be located the tank wall and the bottom of the case of cavity department and set up to fillet transition, can reduce the apex angle collision.
Further, the oil tank valve includes pedestal and sealing plug, and the pedestal includes screw thread section and installation section, and screw thread section and mounting hole screw-thread fit have seted up the oilhole that link up both ends in the pedestal, the oilhole is the shoulder hole, and the macropore is located installation section one side, and the aperture is located screw thread section one side, and the macropore is the screw hole, sealing plug and macropore threaded connection.
Has the advantages that: therefore, when oil drainage is needed, the sealing plug is directly opened.
Furthermore, a sealing washer is arranged at the step of the oil hole, the end part of the sealing plug is abutted against the sealing washer, and a detection hole communicated with a large hole is arranged below the mounting section.
Has the advantages that: when the oil tank is used and oil is required to be taken out for detection, the rotary sealing plug stops rotating when oil is discharged from the detection hole, and the oil can be taken out.
Furthermore, a plurality of hanging stirrers are fixed on the upper part of the box wall.
Has the advantages that: set up like this and can improve the stability of box hoist and mount.
Furthermore, the outer wall of the box wall is also provided with a plurality of corrugated sheets which are distributed at equal intervals, and the free ends of the corrugated sheets are fixed with connecting rods which are horizontally arranged.
Has the advantages that: the corrugated sheet plays radiating effect to the box, and the setting of connecting rod plays the effect of reinforcing to the corrugated sheet, prevents that it from producing the problem of rupture when receiving the collision.
Further, the included angle between the inclined plate and the box bottom is not more than 30 degrees.
Has the advantages that: after the pickling is finished, the oil tank is inclined to one side of the mounting hole by more than 30 degrees, and the pickling solution in the oil tank can be completely discharged.
Drawings
FIG. 1 is a schematic structural diagram of an oil tank to be pickled in an oil-immersed transformer oil tank pickling process embodiment 1 of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a cross-sectional view of the oil tank valve of FIG. 1;
FIG. 4 is a cross-sectional view of the mounting hole at the completion of the pour with pickling;
fig. 5 is a sectional view of the valve of the oil tank in embodiment 2 of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the oil tank comprises a tank wall 1, a tank bottom 2, a tank cover 3, a hanging piece 4, a limiting strip 5, a mounting plate 6, a support column 7, a corrugated sheet 8, a connecting rod 9, an oil tank valve 10, a vertical plate 11, an inclined plate 12, a threaded section 13, a mounting section 14, a sealing plug 15, a sealing ring 16, an oil hole 17, a sealing washer 18, a detection hole 19, a mounting hole 20, a push rod 21, a piston 22 and a reinforcing rib 23.
Example 1:
substantially as shown in figures 1 and 2 of the accompanying drawings: an oil tank to be pickled comprises a tank wall 1, a tank bottom 2 and a tank cover 3, wherein the tank wall 1 is fixed between the tank bottom 2 and the tank cover 3, the tank wall 1, the tank bottom 2 and the tank cover 3 form a closed oil tank, four hanging stirrers 4 are fixed on the upper portion (close to the tank cover 3) of the tank wall 1, the four hanging stirrers 4 are respectively arranged on two sides of the oil tank, namely two hanging stirrers 4 are arranged on one side of the oil tank, and the stability of hoisting the oil tank can be improved by the arrangement.
Be fixed with spacing 5 around the case lid 3 is close to outer edge, be equipped with the mounting panel 6 that is located spacing 5 top on the case lid 3, mounting panel 6 back-off is on spacing 5, all is equipped with a plurality of preformed holes on mounting panel 6 and the case lid 3, and the preformed hole is used for installing spare parts such as oil level gaugember, high-voltage bushing, low pressure sleeve pipe, still is fixed with two support columns 7 at the bottom of the case 2, and the transversal U style of calligraphy of rotatory 90 of personally submitting of support column 7.
Still be equipped with a plurality of equidistant corrugated sheets 8 that distribute on the tank wall 1, wherein the vertical setting of corrugated sheet 8, corrugated sheet 8 mainly plays radiating effect, still is fixed with two connecting rods 9 at a plurality of corrugated sheet 8's free end, and connecting rod 9 level sets up, and two connecting rods 9 are fixed respectively in the upper portion and the lower part of corrugated sheet 8.
As shown in fig. 3, a fuel tank valve 10 is further disposed at a position of the tank wall 1 close to the tank bottom 2, specifically: the welding has the thickened plate in the inboard of tank wall 1, wherein the thickened plate includes riser 11 and swash plate 12, the bottom at riser 11 is fixed to swash plate 12, riser 11 welds in 1 inboard of tank wall, and the low side welding of swash plate 12 is on the bottom of the case 2, contained angle between swash plate 12 and the bottom of the case 2 is no longer than 30, the confined cavity has been formed between thickened plate and the oil tank, be located the fillet transition between the tank wall 1 of cavity department and the bottom of the case, mounting hole 20 that link up riser 11 is seted up to the level on tank wall 1, wherein mounting hole 20 is the screw hole, mounting hole 20 is close to the setting of swash plate 12.
The oil tank valve 10 is in threaded connection in the mounting hole 20, wherein the oil tank valve 10 comprises a seat body and a sealing plug 15, the seat body comprises an integrally formed threaded section 13 and a mounting section 14, the threaded section 13 is in threaded fit with the mounting hole, a sealing ring 16 is arranged between the threaded section 13 and the tank wall 1, oil holes 17 penetrating through two ends are formed in the seat body, the oil holes 17 are stepped holes, large holes are located on one side of the mounting section 14, small holes are located on one side of the threaded section 13, large holes are also threaded holes, the sealing plug 15 is in threaded connection with large holes, a sealing washer 18 is arranged at the stepped position of the oil holes 17, the end of the sealing plug 15 abuts against the sealing washer 18, and a detection hole 19 communicated with the large holes is formed below the mounting section 14.
When carrying out the pickling, multiple spare part has not been installed on the oil tank this moment, no spare part in the reservation hole promptly, the driving (or other equipment of lifting by crane) is stirred 4 through hanging and is vertically put into the pickling bath with the oil tank, and the case lid is up, the pickle enters into inside the oil tank from reservation hole and mounting hole 20, after the pickling is accomplished, combine shown in fig. 4, let the oil tank to the 20 one side slope of mounting hole, inclination is greater than 30, the pickle in the oil tank can directly be followed the mounting hole 20 and is discharged like this, in addition because the setting of swash plate 12, it plays the effect of water conservancy diversion at the pickle exhaust in-process, make the pickle can discharge completely, consequently, adopt the scheme in this application and need not to set up the discharge hole at bottom of the case 2, can improve the sealing performance of oil tank like this, and the scheme is applicable to the pickling of the transformer housing below 250KV in this application.
Example 2:
substantially as shown in figure 5: the difference from the embodiment 1 is that a push rod 21 is coaxially fixed at the left end of the sealing plug 15, a piston 22 is fixed at the end of the push rod 21, the piston 22 is rotatably connected with the small hole of the oil hole 17, a plurality of annular grooves are distributed on the outer wall of the piston 22 at equal intervals, a plurality of reinforcing ribs 23 are fixed between the piston 22 and the push rod 21, the plurality of reinforcing ribs 23 are uniformly distributed along the circumferential direction of the push rod 21, and after the sealing plug 15 seals the oil hole 17, the piston 22 is located in the small hole of the oil hole 17.
With the arrangement, after sampling, the piston 22 synchronously rotates in the rotating and closing process of the sealing plug 15, so that the transformer oil in the small hole of the oil hole 17 is pushed into the oil tank, the sealing effect is further improved, and the leakage of the transformer oil is reduced.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. Oil-immersed transformer oil tank pickling technology, the oil tank of treating the pickling include tank wall, the bottom of the case and case lid, is equipped with the preformed hole on the case lid, is equipped with the mounting hole on the tank wall, and the mounting hole is used for connecting oil tank valve, its characterized in that: vertically placing an oil tank into pickling solution, wherein a tank cover is upward, the pickling solution enters the oil tank from a preformed hole and a mounting hole, and after pickling is finished, inclining the oil tank to one side of the mounting hole to discharge the pickling solution in the oil tank from the mounting hole; the inner side of the box wall is provided with a thickened plate, the thickened plate comprises a vertical plate and an inclined plate, the inclined plate is fixed at the bottom of the vertical plate, the vertical plate is fixed at the inner side of the box wall, the lower end of the inclined plate is welded at the bottom of the box, and the mounting hole penetrates through the box wall and the vertical plate; a closed cavity is formed between the thickened plate and the box bottom;
the oil tank valve comprises a seat body and a sealing plug, the seat body comprises a threaded section and an installation section, the threaded section is in threaded fit with an installation hole, an oil hole penetrating through two ends is formed in the seat body, the oil hole is a stepped hole, a large hole is formed in one side of the installation section, a small hole is formed in one side of the threaded section, the large hole is a threaded hole, and the sealing plug is in threaded connection with the large hole;
the left end of the sealing plug is coaxially fixed with a push rod, the end part of the push rod is fixed with a piston, the piston is rotatably connected with the small hole of the oil hole, a plurality of annular grooves are distributed on the outer wall of the piston at equal intervals, a plurality of reinforcing ribs are further fixed between the piston and the push rod and uniformly distributed along the circumferential direction of the push rod, and after the sealing plug seals the oil hole, the piston is positioned in the small hole of the oil hole.
2. The oil-filled transformer oil tank pickling process according to claim 1, characterized in that: the mounting hole is a threaded hole, and the oil tank valve is in threaded connection in the mounting hole.
3. The oil-filled transformer oil tank pickling process according to claim 1, characterized in that: the box wall and the box bottom at the cavity are in round angle transition.
4. The oil-filled transformer oil tank pickling process according to claim 1, characterized in that: a sealing washer is arranged at the step of the oil hole, the end of the sealing plug is abutted against the sealing washer, and a detection hole communicated with a large hole is arranged below the mounting section.
5. The oil-filled transformer oil tank pickling process according to claim 4, characterized in that: and a plurality of hanging stirrers are fixed on the upper part of the box wall.
6. The oil-filled transformer oil tank pickling process according to claim 5, characterized in that: the outer wall of the box wall is also provided with a plurality of corrugated sheets which are distributed at equal intervals, and the free ends of the corrugated sheets are fixed with connecting rods which are horizontally arranged.
7. The oil-filled transformer oil tank pickling process according to claim 6, characterized in that: the included angle between the inclined plate and the box bottom is not more than 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035655.4A CN112164569B (en) | 2020-09-27 | 2020-09-27 | Oil tank pickling process for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035655.4A CN112164569B (en) | 2020-09-27 | 2020-09-27 | Oil tank pickling process for oil-immersed transformer |
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| Publication Number | Publication Date |
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| CN112164569A CN112164569A (en) | 2021-01-01 |
| CN112164569B true CN112164569B (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011035655.4A Active CN112164569B (en) | 2020-09-27 | 2020-09-27 | Oil tank pickling process for oil-immersed transformer |
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Citations (4)
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| GB588263A (en) * | 1944-11-08 | 1947-05-19 | British Thomson Houston Co Ltd | Improvements relating to liquid filled electrical apparatus |
| JP2010165945A (en) * | 2009-01-16 | 2010-07-29 | Tokyo Electric Power Co Inc:The | Oil leak preventing tool in oil-filled equipment, such as transformer, and method of preventing oil leak using the same |
| JP2011040588A (en) * | 2009-08-12 | 2011-02-24 | Hitachi Industrial Equipment Systems Co Ltd | Oil-immersed transformer |
| CN105931811A (en) * | 2016-06-27 | 2016-09-07 | 杨林娣 | Oil-immersed power transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS57176707A (en) * | 1981-04-22 | 1982-10-30 | Toshiba Corp | Oil-immersed electric device |
| CN205446757U (en) * | 2015-12-24 | 2016-08-10 | 平高集团有限公司 | Transformer fuel outlet valve |
| CN205839137U (en) * | 2016-07-21 | 2016-12-28 | 浙江沪新不锈钢制造有限公司 | Can the acid dip pickle of Automatic-dumping waste liquid |
| CN109668689A (en) * | 2017-10-17 | 2019-04-23 | 河南森源重工有限公司 | A kind of oil tank of transformer leakage testing device and leak testing process |
| CN208894785U (en) * | 2018-01-25 | 2019-05-24 | 湖北楚锐重型工程机械有限公司 | Construction machinery hydraulic oil tank cleaning device |
| CN207875683U (en) * | 2018-02-24 | 2018-09-18 | 四川品品食品有限公司 | A kind of draining hand cart for transporting |
| CN208507398U (en) * | 2018-04-18 | 2019-02-15 | 江西红日变电设备有限公司 | It is a kind of to drain the oil the device of decontamination convenient for oil-immersed type transformer |
| CN108806933A (en) * | 2018-06-07 | 2018-11-13 | 山东泰开箱变有限公司 | A kind of oil tank of transformer surface treatment method |
| CN208891110U (en) * | 2018-11-30 | 2019-05-21 | 深圳市中兴新力精密机电技术有限公司 | A kind of waterproof cabinet |
| CN210258493U (en) * | 2019-08-09 | 2020-04-07 | 河北馋人居食品科技有限公司 | Special transport vechicle of high temperature material oil |
| CN210596271U (en) * | 2019-09-12 | 2020-05-22 | 安徽稳利达变压器科技有限公司 | Oil tank acid dip pickle is used in transformer production |
| CN110919300B (en) * | 2019-11-21 | 2020-10-23 | 杭州樱多电器有限公司 | Production process for oil tank |
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2020
- 2020-09-27 CN CN202011035655.4A patent/CN112164569B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB588263A (en) * | 1944-11-08 | 1947-05-19 | British Thomson Houston Co Ltd | Improvements relating to liquid filled electrical apparatus |
| JP2010165945A (en) * | 2009-01-16 | 2010-07-29 | Tokyo Electric Power Co Inc:The | Oil leak preventing tool in oil-filled equipment, such as transformer, and method of preventing oil leak using the same |
| JP2011040588A (en) * | 2009-08-12 | 2011-02-24 | Hitachi Industrial Equipment Systems Co Ltd | Oil-immersed transformer |
| CN105931811A (en) * | 2016-06-27 | 2016-09-07 | 杨林娣 | Oil-immersed power transformer |
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| CN112164569A (en) | 2021-01-01 |
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