CN210722676U - Self-cleaning oil-immersed cooling on-load voltage regulation power transformer - Google Patents
Self-cleaning oil-immersed cooling on-load voltage regulation power transformer Download PDFInfo
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- CN210722676U CN210722676U CN201921302695.3U CN201921302695U CN210722676U CN 210722676 U CN210722676 U CN 210722676U CN 201921302695 U CN201921302695 U CN 201921302695U CN 210722676 U CN210722676 U CN 210722676U
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- oil
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- box
- cooling chamber
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- 238000001816 cooling Methods 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 title claims abstract description 9
- 230000033228 biological regulation Effects 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000007654 immersion Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims 1
- 239000011229 interlayer Substances 0.000 abstract description 19
- 239000000110 cooling liquid Substances 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000003463 adsorbent Substances 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Transformer Cooling (AREA)
Abstract
The utility model relates to an electrical equipment technical field provides a but self-cleaning oil immersion cooling on-load voltage regulation power transformer. The transformer box comprises a transformer box body, wherein a cooling chamber interlayer I is arranged in the side wall of the transformer box body, a spiral oil pipe is spirally wound in the cooling chamber interlayer I, an auxiliary box body is arranged on one side of the transformer box body, a cooling chamber interlayer II is arranged in the side wall of the auxiliary box body, the two cooling chamber interlayers are communicated, a plurality of box chambers are separated in the auxiliary box body by baffles, and meanwhile, the outermost box chamber is connected with an oil pump through an oil outlet pipe and is communicated with the inner chamber of the transformer box body through an oil guide pipe I; meanwhile, the bottom of the transformer box body is connected with a three-way electromagnetic valve through an oil outlet pipe and then communicated with the inner chamber of the auxiliary box body through an oil guide pipe II, and a voltage regulator is arranged on the outer side wall of the transformer box body. The utility model has the advantages that: a cooling liquid is arranged in the side wall of the transformer box body to assist the oil liquid of the transformer to dissipate heat; meanwhile, the auxiliary oil tank is arranged to carry out natural sedimentation type filtration on the transformer oil, and the oil self-cleaning operation is simplified.
Description
Technical Field
The utility model relates to an electrical equipment technical field, in particular to but self-cleaning oil immersion cooling on-load voltage regulation power transformer.
Background
An on-load tap changing power transformer is a transformer that can regulate the output voltage, and in power transmission, a voltage drop occurs and changes with the change of the load on the user side. Changes in the customer side load over fluctuations in the system voltage will cause large variations in the voltage. On the premise of realizing the local balance of reactive power, when the voltage variation exceeds a fixed value, the on-load tap changer can act after a certain time delay to adjust the voltage and keep the voltage stable.
The existing on-load tap changer generally comprises a box body, and an iron core, a winding and transformer oil which are arranged in the box body, wherein the transformer oil is generally used for insulation and heat dissipation generated by the transformer, and the resistance value of a winding can be increased in the temperature rise process of the transformer, so that the heat productivity is continuously increased, therefore, the heat dissipation is accelerated to be a good means for reducing the loss of the transformer, and the heat dissipation speed of the existing on-load tap changer only relying on the natural heat dissipation of the transformer oil is very slow.
Meanwhile, transformer oil is easily affected by air and impurities to cause aging and deterioration, the performance is reduced, some transformer oil purifiers appear in the current market, the transformer oil purifiers comprise adsorbents arranged in the oil purifiers, the transformer oil in the filter oil tank achieves the effects of purifying the transformer oil and prolonging the service life of the transformer oil, the adsorbents are difficult to replace after being saturated, the transformer oil in the oil tank needs to be discharged, the adsorbents in the oil purifiers can be replaced, the operation is complex, and great transformer oil waste can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but self-cleaning oil immersion cooling on-load voltage regulation power transformer. The transformer oil cooling device is mainly used for solving the problems that the transformer only depends on transformer oil, and the natural cooling speed is low and the efficiency is low; and the problem of complex operation in the purification process of the transformer oil is solved.
The above technical problem of the present invention can be solved by the following technical solutions: the transformer box comprises a cuboid transformer box body, wherein an iron core and a winding group are arranged in the transformer box body in an oil liquid immersion manner, a cooling chamber interlayer I is arranged in the side wall of the transformer box body, a spiral oil pipe is spirally wound in the cooling chamber interlayer I, the cooling chamber interlayer I is filled with cooling liquid, the beginning end and the end of the spiral oil pipe penetrate through the inner wall of the transformer box body and are communicated with a box chamber of the transformer box body, an auxiliary box body is arranged on one side of the transformer box body, a cooling chamber interlayer II is also arranged in the side wall of the auxiliary box body, the cooling chamber interlayer I is communicated with the cooling chamber interlayer II, a plurality of baffles are arranged in the auxiliary box body, the height of the baffles is higher as the baffles are closer to the side wall of the transformer box body, a plurality of box chambers are formed in the auxiliary box body, an oil outlet pipe is arranged at the bottom of each box chamber, and the oil pump other end is connected with leads oil pipe I, simultaneously it runs through transformer box top cap and switches on with transformer box inner room to lead I other end of oil pipe, simultaneously the bottom of transformer box also is equipped with out oil pipe, and this play oil pipe is connected with three solenoid valve, three solenoid valve's other both ends are connected with leads oil pipe II and play oil pipe, lead II other ends of oil pipe link up vice box top cap and just arrange in directly over the most inboard case of vice box, simultaneously still be equipped with the voltage regulator on the lateral wall of transformer box.
Preferably, a spare oil tank is fixed on the top cover of the transformer tank body, and an oil level sensor is further arranged on the outer side wall of the spare oil tank.
Preferably, the inner wall of the transformer tank is provided with an oil level sensor and a temperature sensor.
Preferably, the oil level sensor, the temperature sensor, the oil pump and the three-way electromagnetic valve are connected through lines, the central control processor is arranged in a central control box, and the central control box is fixed on the outer wall of the transformer box body.
The utility model has the advantages that: a cooling chamber is arranged on the side wall of the transformer tank body, and cooling liquid is added to assist the heat dissipation of transformer oil; meanwhile, the auxiliary oil tank is arranged to carry out natural sedimentation type filtration on the transformer oil, so that the self-cleaning operation of the transformer oil is simplified, and the complex replacement of the adsorbent is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention;
the notation in the figure is:
1. the transformer box comprises a transformer box body 101, a transformer box body top cover, 2 winding groups, 3 iron cores, 4 cooling chamber interlayers I, 5 spiral oil pipes, 6 auxiliary box bodies, 601 cooling chamber interlayers II, 602 auxiliary box body top covers, 7 baffle plates, 8 oil outlet pipes, 9 oil pumps, 10 oil guide pipes I, 11 oil guide pipes II, 12 three-way electromagnetic valves, 13 pressure regulators, 14 spare oil tanks, 15 oil level sensors, 16 temperature sensors, 17 central control processors and 18 central control boxes.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the self-cleaning oil-immersed cooling on-load voltage regulation power transformer comprises a cuboid transformer box body (1), wherein an iron core (3) and a winding group (2) are arranged in the transformer box body (1) in an oil immersion mode; a cooling chamber interlayer I (4) is arranged in the side wall of the transformer box body (1), a spiral oil pipe (5) is spirally wound in the cooling chamber interlayer I (4), and cooling liquid is filled in the cooling chamber interlayer I (4); meanwhile, the beginning end and the end of the spiral oil pipe (5) penetrate through the inner wall of the transformer box body (1) and are communicated with the box chamber of the transformer box body (1); meanwhile, an auxiliary box body (6) is arranged on one side of the transformer box body (1), a cooling chamber interlayer II (601) is also arranged in the side wall of the auxiliary box body (6), and the cooling chamber interlayer I (4) is communicated with the cooling chamber interlayer II (601); a plurality of baffles (7) are arranged in the auxiliary box body (6), the baffles (7) are different in height and are higher closer to the side wall of the transformer box body (1), so that a plurality of box chambers are formed in the auxiliary box body, an oil outlet pipe (8) is arranged at the bottom of each box chamber, the oil outlet pipe (8) of the outermost box chamber is connected with an oil pump (9), and the other end of the oil pump (9) is connected with an oil guide pipe I (10); meanwhile, the other end of the oil guide pipe I (10) penetrates through a top cover (101) of the transformer box body and is communicated with an inner chamber of the transformer box body (1); meanwhile, an oil outlet pipe (8) is also arranged at the bottom of the transformer box body (1), the oil outlet pipe (8) is connected with a three-way electromagnetic valve (12), the other two ends of the three-way electromagnetic valve (12) are connected with an oil guide pipe II (11) and the oil outlet pipe (8), and the other end of the oil guide pipe II (11) penetrates through a top cover (602) of the auxiliary box body and is just arranged right above the innermost box chamber of the auxiliary box body (6); meanwhile, a voltage regulator (13) is also arranged on the outer side wall of the transformer box body (1); meanwhile, a spare oil tank (14) is fixed on a top cover (101) of the transformer tank body, and an oil level sensor (15) is also arranged on the outer side wall of the spare oil tank (14); meanwhile, the inner wall of the transformer box body (1) is also provided with an oil level sensor (15) and a temperature sensor (16); the oil level sensor (15), the temperature sensor (16), the oil pump (9) and the three-way electromagnetic valve (12) are connected with the central control processor (17); meanwhile, the central control processor (17) is arranged in the central control box (18), and the central control box (18) is fixed on the outer wall of the transformer box body (1).
When the transformer is used, the temperature of the upper layer of the transformer oil is slightly higher than that of the bottom layer of the transformer oil slowly in the running process of the transformer. In the embodiment, a spiral oil pipe (5) is arranged in the interlayer I (4) of the cooling chamber, and the head end and the tail end of the spiral oil pipe (5) are communicated with the top and the top of the inner chamber of the transformer box body. When the temperature of the upper-layer oil liquid is different from that of the bottom-layer oil liquid, the density of the upper-layer oil liquid and the density of the lower-layer oil liquid are uneven, so that the oil liquid forms convection in the spiral oil pipe (5), and the upper-layer oil liquid continuously flows into the bottom-layer oil liquid. In the convection process, oil liquid is subjected to heat exchange with external cooling liquid through the spiral oil pipe (5), so that the oil liquid is assisted to cool and dissipate heat.
Meanwhile, an oil outlet pipe (8) is further arranged at the bottom of the transformer box body (1), the oil outlet pipe (8) is connected with a three-way electromagnetic valve (12), and under the condition that the three-way electromagnetic valve (12) is conducted, oil flows into the auxiliary box body (6) through an oil guide pipe I (10) due to the siphon effect. And a plurality of box chambers with different heights are separated in the auxiliary box body (6) by the baffle (7), and the separated box chambers are arranged from low to high in the direction of the transformer box body (1). Meanwhile, the oil liquid flowing out of the transformer tank body (1) falls from the position right above the highest tank chamber in the auxiliary tank body (6). In the process, the impurities precipitated at the bottom of the transformer box body (1) also flow into the auxiliary box body (6) along with the oil, meanwhile, the oil is naturally precipitated in the box chambers separated by the auxiliary box body (6) and is filtered step by step, the oil fills the box chambers in the auxiliary box body (6) from high to low in one-level mode, the impurities are precipitated in each box chamber, the one-level mode is reduced, the oil in the lowest box chamber is purified, and the oil is pumped back into the transformer box body (1) under the action of the oil pump (10). And impurities precipitated in the auxiliary tank body (6) can be discharged from the oil outlet pipe (8) at the bottom of each tank chamber after the three-way electromagnetic valve is closed. In the whole sediment filtering process, there is not the adsorbent, need not the replacement, moreover, the oil pipe (8) of each chamber bottom can extend to the wire pole bottom, makes things convenient for the operating personnel directly just can collect waste oil liquid in the bottom.
And a spare oil tank (14) is fixed on the top cover (101) of the transformer tank body, and oil in the transformer tank body can be supplemented after partial waste oil is discharged every time. Meanwhile, an oil level sensor (15) is arranged on the side wall of the spare oil tank (14), the oil level sensor (15) is connected with the central control processor (17), and an operator can visually check the oil quantity of the spare oil tank (14). And an oil level sensor (15) and a temperature sensor (16) are also arranged in the transformer box body, the oil level sensor (15) and the temperature sensor (16) are also connected with a central control processor (17), so that the data of the central control processor (17) can be transmitted to a monitoring room of a power company besides being checked by an operator on site, and remote monitoring is facilitated.
The present embodiment is only an exemplary embodiment of the present invention, and for those skilled in the art, based on the application method and principle disclosed in the present invention, various modifications or variations can be easily made, and not only limited to the structure described in the above embodiments of the present invention, therefore, the manner described in the foregoing is only a preferred embodiment, but not limiting, and all equivalent changes and modifications made according to the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a self-cleaning oil immersion cooling on-load voltage regulation power transformer, includes cuboid transformer box (1), oil immersion is equipped with iron core (3) and winding group (2) in transformer box (1), its characterized in that, be equipped with cooling chamber intermediate layer I (4) in the lateral wall of transformer box (1), simultaneously the spiral has coiled tubing (5) around in cooling chamber intermediate layer I (4), just be equipped with the coolant liquid in cooling chamber intermediate layer I (4), simultaneously the beginning both ends of coiled tubing (5) all run through transformer box (1) inner wall with transformer box (1) case room switches on, is equipped with auxiliary box (6) in one side of transformer box (1) simultaneously, also be equipped with cooling chamber intermediate layer II (601) in the lateral wall of auxiliary box (6), cooling chamber intermediate layer I (4) and cooling chamber intermediate layer II (601) communicate with each other, and a plurality of baffles (7) are arranged in the auxiliary box body (6), the baffles (7) are different in height and are higher closer to the side wall of the transformer box body (1), so that a plurality of box chambers are formed in the auxiliary box body, an oil outlet pipe (8) is arranged at the bottom of each box chamber, an oil pump (9) is connected with the oil outlet pipe (8) of the outermost box chamber, the other end of the oil pump (9) is connected with an oil guide pipe I (10), the other end of the oil guide pipe I (10) penetrates through a top cover (101) of the transformer box body and is communicated with an inner chamber of the transformer box body (1), the oil outlet pipe (8) is also arranged at the bottom of the transformer box body (1), the oil outlet pipe (8) is connected with a three-way electromagnetic valve (12), the other two ends of the three-way electromagnetic valve (12) are connected with an oil guide pipe II (11) and the oil outlet pipe (8), the other end of the oil guide pipe II (11), and meanwhile, a voltage regulator (13) is also arranged on the outer side wall of the transformer box body (1).
2. A self-cleanable oil-immersed loaded voltage-regulating power transformer according to claim 1, characterized in that a spare oil tank (14) is fixed on the top cover (101) of the transformer tank body, and an oil level sensor (15) is further arranged on the outer side wall of the spare oil tank (14).
3. A self-cleanable oil-cooled on-load tap changing power transformer according to claim 1, characterised in that the inner wall of the transformer tank (1) is provided with an oil level sensor (15) and a temperature sensor (16).
4. A self-cleanable oil-immersed loaded voltage-regulating power transformer according to claim 3, characterized in that the oil level sensor (15), the temperature sensor (16), the oil pump (9) and the three-way solenoid valve (12) are connected with a central control processor (17), the central control processor (17) is arranged in a central control box (18), and the central control box (18) is fixed on the outer wall of the transformer box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302695.3U CN210722676U (en) | 2019-08-09 | 2019-08-09 | Self-cleaning oil-immersed cooling on-load voltage regulation power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302695.3U CN210722676U (en) | 2019-08-09 | 2019-08-09 | Self-cleaning oil-immersed cooling on-load voltage regulation power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210722676U true CN210722676U (en) | 2020-06-09 |
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ID=70929827
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921302695.3U Expired - Fee Related CN210722676U (en) | 2019-08-09 | 2019-08-09 | Self-cleaning oil-immersed cooling on-load voltage regulation power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210722676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951558A (en) * | 2021-03-19 | 2021-06-11 | 郑州大学 | Oil-immersed transformer with cooling oil conservator |
-
2019
- 2019-08-09 CN CN201921302695.3U patent/CN210722676U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951558A (en) * | 2021-03-19 | 2021-06-11 | 郑州大学 | Oil-immersed transformer with cooling oil conservator |
| CN112951558B (en) * | 2021-03-19 | 2022-08-26 | 郑州大学 | Oil-immersed transformer with cooling oil conservator |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 |