CN109215943B - Rectifier transformer for bottomless electrode direct current arc furnace - Google Patents
Rectifier transformer for bottomless electrode direct current arc furnace Download PDFInfo
- Publication number
- CN109215943B CN109215943B CN201810958969.8A CN201810958969A CN109215943B CN 109215943 B CN109215943 B CN 109215943B CN 201810958969 A CN201810958969 A CN 201810958969A CN 109215943 B CN109215943 B CN 109215943B
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- water tank
- shell
- basin
- arc furnace
- casing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 24
- 238000009423 ventilation Methods 0.000 claims description 18
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 2
- 238000009751 slip forming Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000561734 Celosia cristata Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- 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
- H01F27/085—Cooling by ambient air
-
- 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
- H01F27/16—Water cooling
-
- 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
- H01F27/18—Liquid cooling by evaporating liquids
-
- 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
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- 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
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Abstract
The invention relates to the technical field of transformers, in particular to a rectifier transformer for a bottomless electrode direct current arc furnace, which comprises a shell, wherein a plurality of iron cores are arranged in the shell, coils are wound outside the iron cores, a plurality of binding posts are arranged on two sides of the top of the shell, a water tank is arranged on the top of the shell, a water receiving cover is connected to the edge of the top of the water tank, a plurality of strip-shaped water receiving ports are formed in the top of the water tank, a water tank is arranged at the bottom of the shell, a plurality of radiating pipes are vertically communicated between the bottom of the water tank and the top of the water tank, the radiating pipes penetrate through one of the iron cores, annular radiating grooves are continuously formed in the inner walls of the radiating pipes, and the cross sections of the radiating grooves are V-shaped.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a rectifier transformer for a bottomless electrode direct current arc furnace.
Background
Electric arc furnaces are well known metal smelting plants. In general, an arc furnace powered by direct current requires a set of electrode devices (generally anodes) at the bottom of the furnace to form an electrical circuit for generating an arc between the metal placed in the furnace and the graphite top electrode, thereby achieving the purpose of smelting the metal. Existing hearth electrodes are generally divided into four types, namely water-cooled steel bar, conductive hearth, multi-pin, and multi-plate. In addition, there is no bottom electrode DC arc furnace
The arc furnace needs to use a rectifier transformer, which is a power transformer of the rectifying device. The rectifying device is characterized in that the primary side inputs alternating current, and the secondary side outputs direct current after passing through a rectifying element. The current transformation is a general term of three working modes of rectification, countercurrent and frequency conversion, and the rectification is one of the most widely used modes. A transformer used as a power source of a rectifier is called a rectifier transformer. Most of industrial rectifying direct current power supplies are obtained from an alternating current power grid through a rectifying transformer and rectifying equipment, wherein the rectifying transformer is a power transformer of the rectifying equipment. The rectifying device is characterized in that the primary side inputs alternating current, and the secondary side outputs direct current after passing through the rectifying element. A transformer used as a power source of a rectifier is called a rectifier transformer. Most of industrial rectifying direct current power supplies are obtained from an alternating current power grid through a rectifying transformer and rectifying equipment.
In the prior art, the heat dissipation of the rectifier transformer generally adopts an oil cooling mode, namely, the transformer is soaked in an oil tank, and the heat dissipation mode is the main flow heat dissipation of the high-power transformer because the specific heat of oil is larger than that of air and the insulating strength is high. However, the sealing at the outgoing line is not well solved because the oil product needs maintenance.
Disclosure of Invention
The invention aims to solve the defect of inconvenient heat dissipation in the prior art, and provides a rectifier transformer for a bottom electrode-free direct current arc furnace.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a no bottom electrode rectifier transformer for direct current arc furnace, includes the casing, is equipped with a plurality of iron cores in the casing, the outside winding of iron core has the coil, and the top both sides of casing are equipped with a plurality of terminal, the top of casing is equipped with the basin, the top edge connection of basin has the water receiving cover, a plurality of rectangular shape's water receiving mouth has been seted up at the top of basin, the water tank is installed to the bottom of casing, the vertical intercommunication has a plurality of cooling tubes between the bottom of basin and the top of water tank, the cooling tube runs through one of them iron core setting, the inner wall of cooling tube is provided with annular radiating groove in succession, the cross-section of radiating groove is the V-arrangement, be equipped with the delivery pump in the water tank, the delivery port of delivery pump is connected with one end of back flow, the other end and top one side of basin are connected, top opposite side and the inlet tube connection of basin, be equipped with the control valve on the inlet tube, the both sides of casing all are equipped with ventilation mechanism.
Preferably, the bottom edge of the shell is connected with a mounting plate, and the mounting plate is provided with a mounting hole.
Preferably, a funnel-shaped water leakage groove is arranged at the bottom of the water groove near the top port of the radiating pipe.
Preferably, the ventilation mechanism comprises a vent arranged on the side wall of the shell, a dustproof net matched with the cross section of the vent is arranged in the vent, a fan is arranged in the vent, a duct-shaped guide cover is arranged in the shell, the cross section of one end of the guide cover is smaller than that of the other end of the guide cover, one end of the guide cover with a small cross section is communicated with the vent, and air deflectors parallel to each other are arranged in the inner part of one end of the guide cover with a large cross section at equal intervals.
Preferably, the bottom of water tank is equipped with the control box, be equipped with microcontroller in the control box, microcontroller passes through the wire and is connected with delivery pump, control valve, fan, temperature sensor, water level sensor fix on the mounting bracket, the mounting bracket is fixed in the water tank.
Preferably, the outer wall of the shell is uniformly provided with cooling fins perpendicular to the shell, and the cooling fins are stainless steel sheets.
The rectifier transformer for the bottom electrode-free direct current arc furnace has the beneficial effects that: the invention adopts the mode of combining air cooling and water cooling to dissipate heat, has good heat dissipation effect, reasonably utilizes rainwater and water to evaporate and dissipate heat, is clean and environment-friendly, and saves energy.
Drawings
FIG. 1 is a front view of a rectifier transformer for a bottomless DC arc furnace according to the present invention;
FIG. 2 is a schematic diagram of the structure at A in FIG. 1;
FIG. 3 is a schematic diagram of the structure at B in FIG. 1;
FIG. 4 is a side view of a rectifier transformer for a bottomless DC arc furnace according to the present invention;
fig. 5 is a system block diagram of a rectifier transformer for a bottomless dc arc furnace according to the present invention.
In the figure: the air conditioner comprises a shell 1, a water inlet pipe 2, a control valve 3, a water receiving cover 4, a water leakage groove 5, a water receiving opening 6, a return pipe 7, a radiating pipe 8, a ventilation opening 9, a fan 10, a dustproof net 11, a coil 12, a water tank 13, a delivery pump 14, a water tank 15, a control box 16, a mounting frame 17, a temperature sensor 18, an iron core 19, a mounting hole 20, a mounting plate 21, radiating fins 22, binding posts 23, an air deflector 24, a guide cover 25, a radiating groove 26 and a water level sensor 27.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-5, a rectifier transformer for a bottomless electrode direct current arc furnace comprises a shell 1, wherein a plurality of iron cores 19 are arranged in the shell 1, a coil 12 is wound outside the iron cores 19, a plurality of binding posts 23 are arranged on two sides of the top of the shell 1, a mounting plate 21 is connected to the bottom edge of the shell 1, and mounting holes 20 are formed in the mounting plate 21. The mounting plate 21 is used to fix the housing 1. The mounting holes 20 are used for facilitating the fixed mounting of the mounting plate 21, and the iron core 19, the coil 12 and the binding posts 23 are used for realizing the basic functions of the transformer.
The outer wall of the shell 1 is uniformly provided with radiating fins 22 which are perpendicular to the shell, and the radiating fins 22 are stainless steel sheets. The heat sink 22 is used for increasing the surface machine of the housing 1, and heat dissipation is achieved by increasing the heat exchange area, and is made of stainless steel, so that corrosion resistance can be improved, and in addition, the stainless steel has good heat conduction performance, so that heat dissipation is facilitated.
The top of casing 1 is equipped with basin 13, the top edge connection of basin 13 has water receiving cover 4, a plurality of rectangular shape's water receiving mouth 6 have been seted up at the top of basin 13, water tank 15 is installed to the bottom of casing 1, the vertical intercommunication has a plurality of cooling tubes 8 between the bottom of basin 13 and the top of water tank 15, cooling tube 8 runs through one of them iron core 19 setting, the inner wall of cooling tube 8 is provided with annular cooling tank 26 in succession, the cross-section of cooling tank 26 is the V-arrangement, be equipped with delivery pump 14 in the water tank 15, the delivery port of delivery pump 14 is connected with the one end of back flow 7, the other end and the top one side of basin 13 are connected, the top opposite side and the inlet tube 2 of basin 13 are connected, be equipped with control valve 3 on the inlet tube 2, the both sides of casing 1 all are equipped with ventilation mechanism. The basin 13 is used for collecting the rainwater, is convenient for also in addition that the moisture evaporation cools down, and the water receiving cover 4 can increase the scope of collecting the rainwater, and later rivers are inside through the iron core 19 through cooling tube 8, can effectively take away the heat that produces in the work of iron core 19, and cooling tank 26 makes cooling tube 8's inner wall be the cockscomb structure, effectively increases cooling tube 8 inner wall area, dispels the heat through increasing the heat exchange area, improves the heat dissipation cooling effect.
The bottom of the water tank 13 is provided with a funnel-shaped water leakage tank 5 near the top port of the radiating pipe 8. The water leakage groove 5 can facilitate water flow to enter the radiating pipe 8.
The ventilation mechanism comprises a ventilation opening 9 arranged on the side wall of the shell 1, a dustproof net 11 matched with the cross section of the ventilation opening 9 is arranged in the ventilation opening 9, a fan 10 is arranged in the ventilation opening 9, a pipeline-shaped air guide cover 25 is arranged in the shell 1, the cross section of one end of the air guide cover 25 is smaller than that of the other end, one end of the air guide cover 25 with a small cross section is communicated with the ventilation opening 9, and air deflectors 24 parallel to each other are arranged in the inner part of one end of the air guide cover 25 with a large cross section at equal intervals. The fan 10 can increase the air flow in the shell 1 to achieve the purpose of cooling, the air guide cover 25 guides the external air flow sucked by the fan 10, and then the air flow is intensively blown to the iron core 19 and the coil 12 through the guiding of the air guide plate 24, so that the uniform cooling of the interior of the shell 1 is facilitated, the fan 10 on one side is used for exhausting air and the fan 10 on the other side is used for exhausting air in the ventilation mechanism on two sides of the shell 1, and the internal air and the external air can be exchanged.
The bottom of the water tank 15 is provided with a control box 16, a microcontroller is arranged in the control box 16, the microcontroller is connected with the delivery pump 14, the control valve 3, the fan 10, the temperature sensor 18 and the water level sensor 27 through wires, the temperature sensor 18 and the water level sensor 27 are fixed on the mounting frame 17, and the mounting frame 17 is fixed in the water tank 15. The microcontroller is used for controlling the work of the internal components, when the detected temperature is higher, the conveying pump 14 or the fan 10 is controlled to work for cooling, and when the detected water level is low, the control valve 3 is opened for supplementing cooling water.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a rectifier transformer for no bottom electrode direct current arc furnace, includes casing (1), is equipped with a plurality of iron cores (19) in casing (1), the outside winding of iron core (19) has coil (12), and the top both sides of casing (1) are equipped with a plurality of terminal (23), its characterized in that: the top of casing (1) is equipped with basin (13), the top edge of basin (13) is connected with water receiving cover (4), a plurality of rectangular water receiving mouth (6) have been seted up at the top of basin (13), water tank (15) are installed to the bottom of casing (1), communicate perpendicularly between the bottom of basin (13) and the top of water tank (15) has a plurality of cooling tubes (8), cooling tube (8) run through one of them iron core (19) and set up, the inner wall of cooling tube (8) is provided with annular heat dissipation groove (26) in succession, the cross-section of heat dissipation groove (26) is the V-arrangement, be equipped with delivery pump (14) in water tank (15), the delivery port of delivery pump (14) is connected with one end of back flow (7), the other end of back flow (7) is connected with one side of the top of basin (13), the top opposite side of basin (13) is connected with inlet tube (2), be equipped with control valve (3) on inlet tube (2), the both sides of casing (1) all are equipped with ventilation mechanism;
the ventilation mechanism comprises a ventilation opening (9) arranged on the side wall of the shell (1), a dustproof net (11) matched with the cross section of the ventilation opening is arranged in the ventilation opening (9), a fan (10) is arranged in the ventilation opening (9), a pipeline-shaped air guide cover (25) is arranged in the shell (1), the cross section of one end of the air guide cover (25) is smaller than that of the other end, the small end of the air guide cover (25) is communicated with the ventilation opening (9), and air deflectors (24) parallel to each other are arranged in the large end of the air guide cover (25) at equal intervals;
radiating fins (22) perpendicular to the shell are uniformly distributed on the outer wall of the shell (1), and the radiating fins (22) are stainless steel sheets.
2. A rectifier transformer for a bottomless dc arc furnace according to claim 1, characterized in that: the bottom edge of the shell (1) is connected with a mounting plate (21), and the mounting plate (21) is provided with a mounting hole (20).
3. A rectifier transformer for a bottomless dc arc furnace according to claim 1, characterized in that: the bottom of the water tank (13) is provided with a funnel-shaped water leakage tank (5) near the top port of the radiating pipe (8).
4. A rectifier transformer for a bottomless dc arc furnace according to claim 1, characterized in that: the bottom of water tank (15) is equipped with control box (16), be equipped with microcontroller in control box (16), microcontroller passes through wire and is connected with delivery pump (14), control valve (3), fan (10), temperature sensor (18), water level sensor (27) are fixed on mounting bracket (17), mounting bracket (17) are fixed in water tank (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958969.8A CN109215943B (en) | 2018-08-22 | 2018-08-22 | Rectifier transformer for bottomless electrode direct current arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958969.8A CN109215943B (en) | 2018-08-22 | 2018-08-22 | Rectifier transformer for bottomless electrode direct current arc furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109215943A CN109215943A (en) | 2019-01-15 |
| CN109215943B true CN109215943B (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958969.8A Active CN109215943B (en) | 2018-08-22 | 2018-08-22 | Rectifier transformer for bottomless electrode direct current arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109215943B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205946B (en) * | 2021-05-04 | 2022-03-15 | 广东科源电气股份有限公司 | Power transformer |
| CN113838640B (en) * | 2021-09-14 | 2024-03-01 | 河北科杰电力器材制造有限公司 | Oil immersed transformer capable of extinguishing fire and adjusting position |
| CN114050035B (en) * | 2021-11-11 | 2023-03-24 | 珠海创宝电子科技有限公司 | Waterproof high-frequency transformer with harmonic wave elimination function |
| CN114334375A (en) * | 2022-01-13 | 2022-04-12 | 深圳市铭昱达电子有限公司 | Heat dissipation system and heat dissipation method of transformer |
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|---|---|---|---|---|
| CN104051137A (en) * | 2014-07-02 | 2014-09-17 | 杭州务实科技有限公司 | Transformer having the fast cooling function |
| KR20150048384A (en) * | 2013-10-28 | 2015-05-07 | 현대중공업 주식회사 | Oil immersed transformer |
| CN205542275U (en) * | 2016-03-01 | 2016-08-31 | 陈昊 | Multiform heat abstractor of transformer |
| CN206774353U (en) * | 2017-04-30 | 2017-12-19 | 圣特立集团有限公司 | A kind of transformer to radiate safely |
| CN207302823U (en) * | 2017-09-11 | 2018-05-01 | 申达电气集团有限公司 | A kind of on-load voltage regulation rectifier transformer |
| CN207397885U (en) * | 2017-11-16 | 2018-05-22 | 东莞市港龙电源设备有限公司 | A kind of transformer of good heat dissipation effect |
| CN207441427U (en) * | 2017-09-07 | 2018-06-01 | 云南晨鸣电器有限公司 | A kind of explosion-proof oil-immersed transformer |
| CN207624505U (en) * | 2017-11-30 | 2018-07-17 | 江苏和平动力机械有限公司 | A kind of cooling device for transformer easy to clean |
-
2018
- 2018-08-22 CN CN201810958969.8A patent/CN109215943B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150048384A (en) * | 2013-10-28 | 2015-05-07 | 현대중공업 주식회사 | Oil immersed transformer |
| CN104051137A (en) * | 2014-07-02 | 2014-09-17 | 杭州务实科技有限公司 | Transformer having the fast cooling function |
| CN205542275U (en) * | 2016-03-01 | 2016-08-31 | 陈昊 | Multiform heat abstractor of transformer |
| CN206774353U (en) * | 2017-04-30 | 2017-12-19 | 圣特立集团有限公司 | A kind of transformer to radiate safely |
| CN207441427U (en) * | 2017-09-07 | 2018-06-01 | 云南晨鸣电器有限公司 | A kind of explosion-proof oil-immersed transformer |
| CN207302823U (en) * | 2017-09-11 | 2018-05-01 | 申达电气集团有限公司 | A kind of on-load voltage regulation rectifier transformer |
| CN207397885U (en) * | 2017-11-16 | 2018-05-22 | 东莞市港龙电源设备有限公司 | A kind of transformer of good heat dissipation effect |
| CN207624505U (en) * | 2017-11-30 | 2018-07-17 | 江苏和平动力机械有限公司 | A kind of cooling device for transformer easy to clean |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109215943A (en) | 2019-01-15 |
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