CN112844838A - Dustproof cooling formula dry-type transformer - Google Patents
Dustproof cooling formula dry-type transformer Download PDFInfo
- Publication number
- CN112844838A CN112844838A CN202011512808.XA CN202011512808A CN112844838A CN 112844838 A CN112844838 A CN 112844838A CN 202011512808 A CN202011512808 A CN 202011512808A CN 112844838 A CN112844838 A CN 112844838A
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- China
- Prior art keywords
- plate
- shell
- dust collecting
- dust
- wall
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/88—Cleaning-out collected particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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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
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a dustproof cooling dry-type transformer which comprises a shell, wherein the side wall of the shell is provided with a plurality of L-shaped dust collecting grooves, the inner walls of the upper end and the lower end of each dust collecting groove are fixedly connected with two permanent magnets, the inner wall of each dust collecting groove, which is far away from the permanent magnets, is provided with a one-way air inlet, the side wall of the shell, which is close to the dust collecting grooves, is embedded with a plurality of electrostatic generators, the side wall of the shell, which is far away from the dust collecting grooves, is provided with a plurality of one-way air outlets, the upper end of the shell is provided with a strip. According to the invention, the dust in the air is charged through the electrostatic generator, so that the dust is charged particles, the charged particle dust is deflected by the Lorentz force under the action of the magnetic field between the two permanent magnets in the dust collection groove, the dust is concentrated and falls to the bottom of the dust collection groove, and the air flow enters the shell through the one-way air inlet, so that the dust in the air is prevented from entering the shell, and the temperature of the winding is difficult to radiate.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a dustproof cooling dry-type transformer.
Background
The dry-type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply speaking, the dry-type transformer is a transformer with an iron core and a winding which are not immersed in insulating oil, and has the advantages of strong short-circuit resistance, small maintenance workload, high operation efficiency, small volume and the like.
The dry-type transformer is mainly cooled down through natural air cooling when the internal temperature is lower, consequently, can set up a plurality of ventilation holes on the dry-type transformer casing, can cool down through forced air cooling when the internal temperature of dry-type transformer is higher, and no matter natural air cooling or forced air cooling, the air all can get into inside the dry-type transformer through the ventilation hole, make the dust that contains in the air can be along with inside the air admission dry-type transformer, adsorb on the winding easily afterwards, make the temperature of winding be difficult to distribute, the life of dry-type transformer has been reduced, and it is longer to make to cool down the time through forced air cooling, make energy loss great.
Based on the above, the invention provides a dustproof cooling dry-type transformer.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a dustproof cooling dry-type transformer.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dustproof cooling dry-type transformer comprises a shell, a plurality of L-shaped dust collecting grooves are arranged on the side wall of the shell, two permanent magnets are fixedly connected on the inner walls of the upper end and the lower end of the dust collection groove, a one-way air inlet is arranged on the inner wall of the dust collection groove far away from the permanent magnets, a plurality of electrostatic generators are embedded in the side wall of the shell close to the dust collecting groove, a plurality of one-way air outlets are arranged on the side wall of the shell far away from the dust collecting groove, the upper end of the shell is provided with a strip-shaped cavity, the inner wall of the strip-shaped cavity is connected with a permanent magnet plate in a sealing and sliding way, the side wall of the permanent magnetic plate is elastically connected with the inner wall of the bar-shaped cavity through a telescopic spring, the inner wall of the shell is provided with a spiral cooling cavity, the inner walls of the strip-shaped cavities at the two sides of the permanent magnet plate are respectively fixedly connected with the two ends of the spiral cooling cavity through return pipes, the inner wall of the strip-shaped cavity, which is far away from the telescopic spring, is embedded with an electromagnetic plate, and a power supply mechanism for supplying power to the electromagnetic plate is installed in the one-way air outlet.
Preferably, power supply mechanism includes the elastic plate of bottom in the one-way gas outlet of fixed connection, top fixedly connected with pressure spring in the elastic plate, the one-way gas outlet is located the inner wall fixedly connected with piezoelectric ceramic plate of elastic plate, piezoelectric ceramic plate passes through the dc-to-ac converter and is connected with the electromagnetic plate coupling.
Preferably, the strip-shaped cavity is internally provided with cooling liquid, and a plurality of radiating fins are embedded at the top part in the strip-shaped cavity.
Preferably, the two permanent magnets have opposite relative magnetic poles.
Preferably, the elastic plate is convex.
Preferably, a semiconductor refrigerating plate is embedded in the top of the bar-shaped cavity, and the piezoelectric ceramic plate is in coupling connection with the semiconductor refrigerating plate.
The invention has the following beneficial effects:
1. by arranging the electrostatic generator and the permanent magnets, the electrons emitted by the electrostatic generator when the electrostatic generator is electrified can charge dust in the air, so that the dust is charged particles when entering the dust collecting groove, and a stable magnetic field exists in the dust collecting groove due to the arrangement of the permanent magnets, so that the charged particle dust is deflected by Lorentz force under the action of the magnetic field, the dust is concentrated and falls to the bottom of the dust collecting groove, and air flow enters the shell through the one-way air inlet, so that the dust in the air is prevented from entering the shell, and the temperature of the winding is difficult to emit;
2. through setting up the elastic plate, pressure spring and piezoelectric ceramic plate, when carrying on the forced air cooling in the body, the air velocity in the body is very fast at this moment, when making the gas that flows at a high speed flow in one-way air outlet department, can know by Bernoulli's principle, the pressure above the elastic plate is smaller than the pressure below the elastic plate at this moment, make the elastic plate raise upwards under the effect of pressure, and then drive the separation of pressure spring and piezoelectric ceramic plate, because the air velocity in the body is different in size when carrying on the forced air cooling, make the elastic plate raise and contract constantly under pressure and self elastic action, make the pressure spring collide with piezoelectric ceramic plate constantly, make the piezoelectric ceramic plate produce the electric current constantly;
3. by arranging the strip-shaped cavity, the permanent magnetic plate, the electromagnetic plate, the extension spring and the spiral cooling cavity, alternating current is introduced to the electromagnetic plate through an inverter by current generated on the piezoelectric ceramic plate, so that the magnetism of one side, close to the permanent magnetic plate, of the electromagnetic plate is changed periodically, the permanent magnetic plate slides back and forth on the inner wall of the strip-shaped cavity under the action of periodic suction force and repulsion force of the electromagnetic plate, cooling liquid in the strip-shaped cavity flows in the spiral cooling cavity in a circulating manner through the return pipe, the absorption of heat in the shell is accelerated, and energy consumption generated by heat dissipation in the shell is saved;
4. through setting up the semiconductor refrigeration board, the last electric current that produces of piezoceramics board supplies power to the semiconductor refrigeration board for semiconductor refrigeration board lower extreme heat absorption, and the upper end is exothermic, and then cools down strip intracavity cooling liquid, makes and keeps lower temperature in the cooling liquid, for adopting the fin heat dissipation, the radiating efficiency of semiconductor refrigeration board improves greatly, has further accelerated the absorption to the internal heat of casing.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: the device comprises a shell 1, a dust collecting groove 2, a unidirectional air inlet 3, a permanent magnet 4, a unidirectional air outlet 5, a strip-shaped cavity 6, a spiral cooling cavity 7, a return pipe 8, a permanent magnet plate 9, a telescopic spring 10, an electromagnetic plate 11, an elastic plate 12, a pressure spring 13, a piezoelectric ceramic plate 14, a radiating fin 15, an electrostatic generator 16 and a semiconductor refrigerating plate 17.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example one
Referring to fig. 1-3, a dustproof cooling dry-type transformer, including casing 1, casing 1 lateral wall is seted up a plurality of dust collecting tank 2 that are the L shape, fixedly connected with two permanent magnetism 4 on the inner wall of dust collecting tank 2 upper and lower both ends, further, two permanent magnetism 4 form stable magnetic field, form the effort to the electrified particle that removes in the magnetic field and make its deflection, dust collecting tank 2 keeps away from the inner wall of permanent magnetism 4 and has seted up one-way air inlet 3, casing 1 is close to the lateral wall of dust collecting tank 2 and inlays and is equipped with a plurality of electrostatic generator 16, casing 1 keeps away from the lateral wall in the dust collecting tank 2 and has seted up a plurality of one-way gas outlets 5.
It should be noted that the one-way gas inlet 3 only allows the gas outside to enter the housing 1, and the one-way gas outlet 5 only allows the gas to flow out of the housing 1.
The bar chamber 6 has been seted up to casing 1 upper end, 6 inner wall sealing sliding connection in bar chamber has permanent magnetic plate 9, the 6 inner wall elastic connection in bar chamber of permanent magnetic plate 9 lateral wall passes through expanding spring 10 and bar chamber, spiral cooling chamber 7 has been seted up to casing 1 inner wall, it explains to explain, spiral cooling chamber 7 not only can increase the time that the coolant liquid flows in spiral cooling chamber 7, the area of contact of coolant liquid with casing 1 inner wall has still been increased, the inner wall that bar chamber 6 is located permanent magnetic plate 9 both sides passes through back flow 8 respectively with 7 both ends fixed connection in spiral cooling chamber, the inner wall that expanding spring 10 was kept away from in bar chamber 6 inlays and is equipped with electromagnetic plate 11, install the power supply mechanism to power supply on the electromagnetic plate 11 in the one-way gas outlet.
The power supply mechanism comprises an elastic plate 12 fixedly connected to the bottom in the one-way air outlet 5, the elastic plate 12 is in a convex shape, a pressure spring 13 is fixedly connected to the top in the elastic plate 12, the one-way air outlet 5 is located on an inner wall fixedly connected with piezoelectric ceramic plate 14 in the elastic plate 12, and the piezoelectric ceramic plate 14 is connected with the electromagnetic plate 11 through an inverter in a coupling mode.
It should be noted that, according to the ampere rule, the direction of the magnetic field of the electromagnetic plate 11 is related to the direction of the current flowing through, and further, the piezoelectric ceramic plate 14 converts the generated current into an alternating current through the inverter, so that the direction of the current flowing through the electromagnetic plate 11 changes periodically, and further, the electromagnetic plate 11 periodically attracts and repels the permanent magnetic plate 9.
Be equipped with the coolant liquid in the bar chamber 6, the top inlays in bar chamber 6 and is equipped with a plurality of fin 15, can give off the temperature in the coolant liquid for keep lower temperature in the coolant liquid, accelerate the absorption to casing 1 interior heat.
In the embodiment, when air convection heat dissipation is performed in the housing 1, the electrostatic generator 16 embedded in the side wall of the housing 1 is energized at this time, so that electrons emitted from the electrostatic generator 16 are combined with dust in the air, the dust is charged, when the air passes through the dust collecting groove 2 and is performed in the housing 1, the dust in the air is charged particles, a stable magnetic field exists in the dust collecting groove 2 due to the permanent magnets 4, the charged particle dust is deflected by lorentz force under the action of the magnetic field, the dust is concentrated and falls towards the bottom of the dust collecting groove 2, air flow enters the housing 1 through the one-way air inlet 3, and then the air flow is discharged through the one-way air outlet 5, so that the dust in the air does not enter the housing 1 when the air convection heat dissipation is performed in the housing 1;
when forced air cooling is performed at a higher temperature in the dry-type transformer, at this time, the air flow rate in the housing 1 is higher, so that when gas with a higher flow rate flows out from the one-way air outlet 5, as known from the bernoulli principle, when the gas flows at the same height, the flow rate is higher and the pressure is lower, so that the flow rate at the upper end of the elastic plate 12 is higher, and further the pressure at the upper end of the elastic plate 12 is lower, and further the pressure above the elastic plate 12 is lower than the pressure below the elastic plate 12, so that the elastic plate 12 protrudes upwards under the action of the pressure, and further the pressure spring 13 is driven to be separated from the piezoelectric ceramic plate 14, and because the flow rates of the air in the housing 1 are different in size when forced air cooling is performed, the elastic plate 12 continuously protrudes and contracts under the action of the pressure and the;
because the magnetic field direction of electromagnetic plate 11 is relevant with the current direction of letting in, and then piezoelectric ceramic plate 14 passes through the inverter and turns into the alternating current with the electric current that produces, make the current direction of circular telegram on the electromagnetic plate 11 be periodic change, and then electromagnetic plate 11 is periodic attracts and repels permanent magnetic plate 9 mutually, make permanent magnetic plate 9 slide back and forth at bar chamber 6 inner wall under electromagnetic plate 11 periodic suction and repulsion effect, make the coolant liquid in bar chamber 6 pass through back flow 8 and circulate in spiral cooling chamber 7, accelerate the absorption to heat in the casing 1, with this energy consumption that produces when reducing the heat dissipation in the casing 1.
Example two
Referring to fig. 4, different from the first embodiment, a semiconductor refrigeration plate 17 is embedded in the top of the bar-shaped cavity 6, and the piezoelectric ceramic plate 14 is coupled to the semiconductor refrigeration plate 17, it should be noted that the semiconductor refrigeration plate 17 absorbs heat at one end after being powered on, and releases heat at the other end, so that the heat absorption end, i.e., the lower end, of the semiconductor refrigeration plate 17 is disposed in the bar-shaped cavity 6, and the heat release end, i.e., the upper end, of the semiconductor refrigeration plate 17 is disposed outside the housing 1.
In this embodiment, when the electric current that produces on the piezoelectric ceramic plate 14 supplies power to semiconductor refrigeration board 17, semiconductor refrigeration board 17 lower extreme absorbs heat, the upper end is exothermic, and then semiconductor refrigeration board 17 lower extreme absorbs the heat of cooling liquid in bar chamber 6, make and keep lower temperature in the cooling liquid, further accelerate the cooling to in the casing 1, for adopting fin 15 heat dissipation in the embodiment one, semiconductor refrigeration board 17's radiating efficiency improves greatly, and can not increase the loss of the extra energy, energy-concerving and environment-protective.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A dustproof cooling dry-type transformer comprises a shell (1) and is characterized in that a plurality of L-shaped dust collecting grooves (2) are formed in the side wall of the shell (1), two permanent magnets (4) are fixedly connected to the inner walls of the upper end and the lower end of each dust collecting groove (2), a one-way air inlet (3) is formed in the inner wall, far away from the permanent magnets (4), of each dust collecting groove (2), a plurality of electrostatic generators (16) are embedded in the side wall, close to the dust collecting grooves (2), of the shell (1), a plurality of one-way air outlets (5) are formed in the side wall, far away from the dust collecting grooves (2), of the shell (1), a strip-shaped cavity (6) is formed in the upper end of the shell (1), a permanent magnet plate (9) is connected to the inner wall of the strip-shaped cavity (6) in a sealing and sliding mode, the side wall of the permanent magnet plate (9) is elastically connected with the inner, the inner wall that bar chamber (6) are located permanent magnetism board (9) both sides passes through back flow (8) respectively with spiral cooling chamber (7) both ends fixed connection, the inner wall that extension spring (10) were kept away from in bar chamber (6) inlays and is equipped with electromagnetic plate (11), install the power supply mechanism to supplying power on electromagnetic plate (11) in one-way gas outlet (5).
2. The dustproof cooling dry-type transformer of claim 1, wherein the power supply mechanism comprises an elastic plate (12) fixedly connected to the bottom inside the one-way air outlet (5), a pressure spring (13) is fixedly connected to the top inside the elastic plate (12), a piezoelectric ceramic plate (14) is fixedly connected to the inner wall of the one-way air outlet (5) inside the elastic plate (12), and the piezoelectric ceramic plate (14) is coupled to the electromagnetic plate (11) through an inverter.
3. The dustproof and cooling dry transformer according to claim 1, wherein the cooling liquid is arranged in the bar-shaped cavity (6), and a plurality of cooling fins (15) are embedded in the top of the bar-shaped cavity (6).
4. A dustproof and cooling dry transformer according to claim 1, characterized in that the two permanent magnets (4) have opposite poles.
5. A dustproof and cooling dry transformer according to claim 2, wherein the elastic plate (12) is convex.
6. The dustproof cooling dry-type transformer of claim 1, wherein a semiconductor refrigeration plate (17) is embedded in the top of the bar-shaped cavity (6), and the piezoelectric ceramic plate (14) is coupled with the semiconductor refrigeration plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011512808.XA CN112844838A (en) | 2020-12-20 | 2020-12-20 | Dustproof cooling formula dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011512808.XA CN112844838A (en) | 2020-12-20 | 2020-12-20 | Dustproof cooling formula dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112844838A true CN112844838A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011512808.XA Withdrawn CN112844838A (en) | 2020-12-20 | 2020-12-20 | Dustproof cooling formula dry-type transformer |
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| Country | Link |
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| CN (1) | CN112844838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837332A (en) * | 2022-03-23 | 2022-08-02 | 南通润远结构件有限公司 | Wind-resistant glass curtain wall structure |
| CN114985250A (en) * | 2022-06-02 | 2022-09-02 | 郑州嵩山硼业科技有限公司 | Manufacturing process and manufacturing device of high-abundance boric acid |
-
2020
- 2020-12-20 CN CN202011512808.XA patent/CN112844838A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837332A (en) * | 2022-03-23 | 2022-08-02 | 南通润远结构件有限公司 | Wind-resistant glass curtain wall structure |
| CN114985250A (en) * | 2022-06-02 | 2022-09-02 | 郑州嵩山硼业科技有限公司 | Manufacturing process and manufacturing device of high-abundance boric acid |
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Application publication date: 20210528 |