CN113421748A - Oil-immersed power transformer based on negative pressure anti-overflow filling - Google Patents
Oil-immersed power transformer based on negative pressure anti-overflow filling Download PDFInfo
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- CN113421748A CN113421748A CN202110756365.7A CN202110756365A CN113421748A CN 113421748 A CN113421748 A CN 113421748A CN 202110756365 A CN202110756365 A CN 202110756365A CN 113421748 A CN113421748 A CN 113421748A
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- Mechanical Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention relates to the technical field of transformers and discloses an oil-immersed power transformer based on negative-pressure anti-overflow filling, which comprises a transformer body, wherein a heat dissipation fin is fixedly connected to the outer surface of the transformer body, a low-voltage winding and a high-voltage winding are respectively and fixedly connected to the upper surface of the transformer body, an oil conservator is fixedly connected to the upper end of the transformer body, the oil conservator is communicated with the inside of the transformer body, a protective shell is fixedly connected to the right end of the oil conservator, an oil filling hole is formed in the upper surface of the oil conservator, a plug is movably clamped in the oil filling hole, and an oil discharge pipe is fixedly connected to the front side of the transformer body. This oil-immersed power transformer based on negative pressure anti-overflow filling avoids the vibration that the transformer body produced to cause the damage to inside electronic component, consequently avoids transformer body internal circuit to take place the short circuit phenomenon, guarantees that the transformer body is normal to adjust and carry voltage to and avoid the maintenance and change the financial expenditure that electronic component produced.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to an oil-immersed power transformer based on negative-pressure anti-overflow filling.
Background
With the continuous development of national power grids, transformers become indispensable devices in circuit transmission, and transformers with strong performance and convenient maintenance need to be adopted in power supply and distribution systems of industrial and mining enterprises and civil buildings, so that the oil-immersed power transformers become the choice of vast users.
The patent with the application number of CN201910166367.3 discloses an oil-immersed power transformer based on negative pressure anti-overflow filling, which is characterized in that after the transformer is used for a long time, in order to ensure the stability of the transformer, the transformer needs to be changed with oil, the oil needs to be supplemented from an oil conservator, when the transformer oil is filled, a worker needs to carry barreled transformer oil and climb onto a transformer bracket, certain danger exists when carrying a large amount of transformer oil for climbing, the operation is inconvenient, and the like, the technical proposal realizes the replacement of the transformer oil by using the structural cooperation of the oil conservator, a low-voltage wiring terminal, a transformer main body, an oil drain pipe, a transformer lifting hook, a high-voltage wiring terminal, an anti-overflow filling structure, an oil level gauge, an oil tank conduit, an oil conservator fixing frame, an oil tank main body, a breathing structure, an oil pipe connector and the like, but the transformer does not have the capability of damping and buffering, therefore, under the condition of normal operation of the transformer, because the number of internal electronic devices is large, vibration to a certain extent can be generated under long-term operation, but the damping mechanism arranged on most of the existing transformers is usually arranged below the electronic devices which can generate vibration, and then vibration damping and buffering are completed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an oil-immersed power transformer based on negative-pressure anti-overflow filling, which has the advantages of being capable of damping and buffering the whole transformer and the like, and solves the problem that vibration damping and buffering are generally finished by arranging a damping mechanism below electronic equipment which can generate vibration in most of the conventional transformers, and although the mode can reduce the vibration force, the whole transformer cannot be protected.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an oil-immersed power transformer based on negative pressure anti-overflow filling, includes the transformer body, the outer fixed surface of transformer body is connected with the heat dissipation wing, and the upper surface of transformer body fixedly connected with low voltage winding and high voltage winding respectively, the upper end fixedly connected with conservator of transformer body, the inside of conservator and transformer body communicates each other, the right-hand member fixedly connected with protecting crust of conservator, the oil filler point has been seted up to the upper surface of conservator, and the inside activity joint of oil filler point has the jam, and the front side fixedly connected with of transformer body arranges oil pipe, and the lower extreme of transformer body is provided with the fixed plate, and the fixed plate is the T font of handstand, has seted up the mounting hole on the diaphragm of fixed plate, is provided with damper on the fixed plate, and the inside of protecting crust is provided with oiling equipment.
Preferably, damper includes the connecting rod, connecting rod fixed connection is at the lower extreme of transformer body, built-in groove has been seted up to the upper surface of fixed plate riser, the inside fixedly connected with damping ring in built-in groove, the damping ring is oval annular, the through-hole has been seted up to damping ring's upper end, the lower extreme of connecting rod runs through the through-hole and extends to damping ring's inside, the lower extreme fixedly connected with damping spring of connecting rod, damping spring does not have the inside at damping ring with the one end fixed connection of connecting rod contact, the fixed connecting plate that has cup jointed on the connecting rod, the lower surface of solid connecting plate is the arcwall face, one side and the damping ring fixed connection that the connecting plate is close to damping ring, damping ring's inside fixedly connected with spring, the inside fixedly connected with bracing piece in built-in groove, the bracing piece does not have the downside at damping ring with the one end fixed connection of built-in groove contact, and has a beneficial effect: through the damping ring who sets up, when transformer body produces the vibration, the vibrating force transmits the connecting rod, the vibration of connecting rod makes damping spring take place shrink and expansion, when the connecting rod vibrates, extrude damping ring, make damping ring take place deformation, this moment because the support of spring makes and damping ring itself possesses certain elasticity, consequently, shrink and expansion take place for spring and damping ring, shock attenuation and buffering are carried out vibration power, consequently, guarantee transformer body's stability when carrying out the during operation, avoid transformer body's the vibration that produces to cause the damage to internal electronic component simultaneously, consequently, avoid transformer body internal circuit to take place short circuit phenomenon, guarantee that transformer body is normal adjusts and carries voltage, and avoid the financial resources expenditure that maintenance and change electronic component produced.
Preferably, the lower fixed surface of transformer body is connected with the connecting block, and the inside of connecting block is rotated and is connected with two auxiliary rods, and the shifting chute has been seted up to the lower surface in built-in groove, and the inside sliding connection of shifting chute has two sliders, and the equal fixedly connected with extension spring in one side that two sliders carried on the back mutually, two extension springs are not connected on the inner wall of shifting chute with the equal fixed connection of one end of slider contact, and two auxiliary rods do not rotate with the one end of connecting block contact and are connected on two sliders, and two auxiliary rods are splayed setting, beneficial effect: when the transformer body vibrates and rocks from top to bottom, the distance between the two auxiliary rods is changed, when the distance between the two auxiliary rods is increased and reduced, the two sliding blocks move oppositely and back to back in the moving groove, the tension spring contracts and expands at the moment, the vibration force generated by the transformer body is damped and buffered again, the electronic element inside the transformer body is protected to the maximum extent and cannot be damaged, the stability of the transformer body during working is ensured, and the normal transmission of the transformer body to electric power is ensured.
Preferably, the oiling device comprises a rotating shaft, the rotating shaft is arranged inside the protective shell, a rotating hole is formed inside the protective shell, the rotating shaft is rotatably connected inside the rotating hole, an oiling pipe is wound on the outer surface of the rotating shaft, one end of the oiling pipe penetrates through the protective shell and extends out of the outer surface of the protective shell, one end of the oiling pipe penetrating out of the protective shell is in sliding connection with the protective shell, a connecting flange is fixedly connected to one end of the oiling pipe penetrating through the protective shell, a limiting block is fixedly sleeved on one end of the oiling pipe penetrating through the protective shell, a valve is arranged on one end of the oiling pipe penetrating through the protective shell, a clockwork spring is arranged on the outer surface of the rotating shaft, two ends of the clockwork spring are respectively and fixedly connected to the surface of the rotating shaft and the inner wall of the rotating hole, one end of the oiling pipe, which does not penetrate through the protective shell, extends out of the left end of the rotating shaft, and a connecting pipe is fixedly connected to the right side of the conservator, the connecting pipe is not provided with the one end of conservator contact and rotates flange pipe fitting, and the oil filler pipe does not run through the one end of protecting crust and rotates flange pipe fitting fixed connection, beneficial effect: through the arranged oil injection pipe, when the transformer body needs to be injected with oil, the oil injection pipe is pulled downwards, the oil injection pipe is forced to drive the rotating shaft to rotate, at the moment, the oil injection pipe is loosened from the rotating shaft and is further connected with an external oil injection pump by using a connecting flange, the oil injection pump is started, transformer oil is injected into the oil injection pipe through the oil injection pump and is then injected into the connecting pipe through the oil injection pipe, and is finally injected into the oil conservator and flows into the transformer body through the oil conservator, after the oil injection is finished, a valve is closed to avoid the phenomenon of backflow of the oil, so that the oil injection pipe is not stressed, the clockwork spring contracts to drive the rotating shaft to rotate, the oil injection pipe is rewound on the rotating shaft, meanwhile, the oil injection pipe can be prevented from completely retracting into the inside of the protective shell through a limit block, the use of the clockwork spring is facilitated next time, and the clockwork spring is prevented from rebounding, the rebound of notes oil pipe makes valve and protecting crust bump and causes the damage to the valve, improve its life, reduce the number of times of maintenance and change, make notes oil pipe more convenient and the butt joint of outside main oil pump through the flange that sets up simultaneously, and the rotation flange pipe fitting through setting up, make the pivot when rotating, the connecting pipe can not rotate owing to the loose and winding again of notes oil pipe, avoid appearing notes oil pipe winding and be difficult to flexible phenomenon, guarantee its use that can be normal.
Preferably, the inside fixedly connected with carrier bar of conservator, carrier bar and oil filler point mutually perpendicular, sliding connection has floater, beneficial effect on the carrier bar: through the floater that sets up, when carrying out the oiling to the inside of conservator, along with the continuous increase of liquid level, the floater upwards slides on the carrier bar, along with the continuous shifting up of floater, finally block up the oil filler point, avoid appearing transformer oil excessive phenomenon, avoid transformer oil excessive surface to cause the pollution to the conservator, and avoid transformer oil excessive waste that causes, and then reduce the waste of resource, and reduced the trouble when later stage is cleared up the conservator, consequently, operating personnel's intensity of labour has been reduced.
The working principle of the scheme is as follows:
through the arranged damping ring, when the transformer body vibrates, vibration force is transmitted to the connecting rod, the vibration of the connecting rod enables the damping spring to contract and expand, when the connecting rod vibrates, the damping ring is extruded, so that the damping ring deforms, at the moment, the spring is supported to enable the damping ring to have certain elasticity, the spring and the damping ring contract and expand, and the vibration force is damped and buffered, so that the stability of the transformer body during working is ensured, meanwhile, the vibration generated by the transformer body is prevented from damaging internal electronic elements, the short-circuit phenomenon of an internal circuit of the transformer body is avoided, the normal voltage regulation and transmission of the transformer body are ensured, and financial expenditure generated by maintenance and replacement of the electronic elements is avoided;
when the transformer body vibrates and shakes up and down, the distance between the two auxiliary rods is changed, the two sliding blocks move oppositely and oppositely in the moving groove along with the increase and decrease of the distance between the two auxiliary rods, at the moment, the tension spring contracts and expands, and the vibration force generated by the transformer body is damped and buffered again, so that electronic elements in the transformer body are protected from being damaged to the maximum extent, the stability of the transformer body during working is ensured, and the normal transmission of electric power is further ensured;
through the oiling pipe that sets up, when needs carry out the oiling to transformer body, stimulate the oiling pipe downwards, the oiling pipe atress drives the pivot and rotates, the oiling pipe is loose from the pivot this moment, and then use flange and outside oiling pump to be connected, and then start the oiling pump, transformer oil pours into the inside of oiling pipe into through the oiling pump, the inside of rethread oiling pipe injection connecting pipe, pour into the inside of conservator into at last, flow into transformer body's inside through the conservator.
The beneficial effect of this scheme lies in:
through the arranged damping ring, when the transformer body vibrates, vibration force is transmitted to the connecting rod, the vibration of the connecting rod enables the damping spring to contract and expand, when the connecting rod vibrates, the damping ring is extruded, so that the damping ring deforms, at the moment, the spring is supported to enable the damping ring to have certain elasticity, the spring and the damping ring contract and expand, and the vibration force is damped and buffered, so that the stability of the transformer body during working is ensured, meanwhile, the vibration generated by the transformer body is prevented from damaging internal electronic elements, the short-circuit phenomenon of an internal circuit of the transformer body is avoided, the normal voltage regulation and transmission of the transformer body are ensured, and financial expenditure generated by maintenance and replacement of the electronic elements is avoided;
when the transformer body vibrates and shakes up and down, the distance between the two auxiliary rods is changed, the two sliding blocks move oppositely and oppositely in the moving groove along with the increase and decrease of the distance between the two auxiliary rods, at the moment, the tension spring contracts and expands, and the vibration force generated by the transformer body is damped and buffered again, so that electronic elements in the transformer body are protected from being damaged to the maximum extent, the stability of the transformer body during working is ensured, and the normal transmission of the transformer body to electric power is further ensured;
through the arranged floating ball, when the interior of the conservator is filled with oil, the floating ball slides upwards on the bearing rod along with the continuous increase of the liquid level, and finally blocks the oil injection hole along with the continuous upward movement of the floating ball, so that the phenomenon of transformer oil overflow is avoided, the pollution to the outer surface of the conservator caused by the transformer oil overflow is avoided, the waste caused by the transformer oil overflow is avoided, the resource waste is further reduced, the trouble in cleaning the conservator in the later period is reduced, and the labor intensity of operators is reduced;
after the oil injection is finished, the valve is closed, the phenomenon of backflow of oil is avoided, further, the oil injection pipe is not stressed, the spring contracts to drive the rotating shaft to rotate, so that the oil injection pipe is wound on the rotating shaft again, meanwhile, the oil injection pipe can be prevented from completely retracting into the protective shell through the arranged limiting block, the next use is facilitated, the valve is prevented from being damaged due to collision between the valve and the protective shell when the spring rebounds, the service life of the valve is prolonged, the maintenance and replacement times are reduced, meanwhile, the oil injection pipe is more convenient to butt with an external main oil pump through the arranged connecting flange, and the connecting pipe cannot rotate due to loosening and rewinding of the oil injection pipe when the rotating shaft rotates through the arranged rotating flange pipe fitting, so that the phenomena that the oil injection pipe is wound and difficult to stretch are avoided, ensuring the normal use of the utility model.
(III) advantageous effects
Compared with the prior art, the invention provides an oil-immersed power transformer based on negative-pressure anti-overflow filling, which has the following beneficial effects:
1. the oil-immersed power transformer based on negative pressure anti-overflow filling has the advantages that through the arranged damping rings, when the transformer body vibrates, the vibration force is transmitted to the connecting rod, the vibration of the connecting rod enables the damping spring to contract and expand, when the connecting rod vibrates, the damping ring is extruded to deform, and the spring and the damping ring contract and expand because the spring is supported to have certain elasticity, the vibration force is damped and buffered, so that the stability of the transformer body during working is ensured, meanwhile, the damage to internal electronic elements caused by vibration generated by the transformer body is avoided, so that the short circuit phenomenon of an internal circuit of the transformer body is avoided, the transformer body is ensured to normally adjust and convey voltage, and the financial expenditure caused by maintenance and replacement of the electronic elements is avoided.
2. This oil-immersed power transformer based on negative pressure anti-overflow filling, through two auxiliary rod that set up, when the transformer body produces the vibration and rocks from top to bottom, make the interval between two auxiliary rod change, along with interval increase between two auxiliary rod and when reducing, two sliders carry out the removal relative and carried on the back mutually in the inside of shifting chute, the extension spring contracts and expands this moment, carry out shock attenuation and buffering to the produced vibrational force of transformer body once more, and then the inside electronic component of at utmost protection transformer body can not receive the damage, and guarantee the stability of transformer body during operation, and then guarantee its normal transport to electric power.
3. This oil-immersed power transformer based on negative pressure anti-overflow filling, floater through setting up, when carrying out the oiling to the inside of conservator, along with the continuous increase of liquid level, the floater upwards slides on the carrier bar, along with continuous the shifting up of floater, finally block up the oil filler point, transformer oil excessive phenomenon is avoided appearing, avoid transformer oil excessive to cause the pollution to the surface of conservator, and avoid transformer oil excessive to cause the waste, and then reduce the waste of resource, and the trouble when having reduced the later stage and clearing up the conservator, consequently, operating personnel's intensity of labour has been reduced.
4. The oil-immersed power transformer based on negative-pressure anti-overflow filling comprises an oil filling pipe, wherein the oil filling pipe is arranged, when oil needs to be filled into a transformer body, the oil filling pipe is pulled downwards, the oil filling pipe is stressed to drive a rotating shaft to rotate, the oil filling pipe is loosened from the rotating shaft at the moment, then the oil filling pipe is connected with an external oil filling pump by using a connecting flange, the oil filling pump is started, transformer oil is filled into the oil filling pipe by the oil filling pump, then is filled into the connecting pipe by the oil filling pipe, and finally is filled into an oil conservator, and flows into the transformer body by the oil conservator, after the oil filling is finished, a valve is closed, the phenomenon of backflow of oil is avoided, the oil filling pipe is not stressed, a spring contracts to drive the rotating shaft to rotate, so that the oil filling pipe is wound on the rotating shaft again, and the oil can be replaced more conveniently and quickly by the transformer body, need not carry the oil drum artifical and scramble to the eminence and carry out the oiling to the transformer body, reduce the safety risk that the climbing exists, improve the factor of safety of during operation, guarantee operating personnel's personal safety.
5. This oil-immersed power transformer based on negative pressure anti-overflow filling, can avoid the inside of notes oil pipe retraction protective housing completely through the stopper that sets up, and then conveniently use next time, and avoid clockwork spring when taking place to kick-back, the rebound of notes oil pipe makes valve and protective housing bump and causes the damage to the valve, improve its life, reduce the number of times of maintenance and change, make notes oil pipe more convenient and dock with outside main oil pump through the flange that sets up simultaneously, and the rotation flange pipe fitting through setting up, make the pivot when rotating, the connecting pipe can not rotate because the loose and the rewinding of notes oil pipe, avoid appearing notes oil pipe winding and be difficult to flexible phenomenon, guarantee its use that can be normal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of a transformer and fixing plate structure according to the present invention;
FIG. 3 is a schematic right side view of the conservator of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 5 is a schematic view of the internal structure of the protective shell according to the present invention;
FIG. 6 is a schematic front view of the protective shell structure of the present invention.
In the figure: 1 transformer body, 101 connecting rod, 102 connecting plate, 103 damping spring, 104 auxiliary rod, 105 connecting block, 2 heat dissipation fin, 3 high-voltage winding, 4 low-voltage winding, 5 conservator, 501 oil hole, 502 plug, 503 bearing rod, 504 floating ball, 6 protective shell, 601 rotating shaft, 602 oil filling pipe, 603 limiting block, 604 valve, 605 connecting flange, 606 rotating flange pipe fitting, 607 connecting pipe, 608 rotating hole, 609 spring, 7 fixing plate, 701 mounting hole, 702 built-in groove, 703 damping ring, 704 supporting rod, 705 spring, 706 moving groove, 707 slide block, 708 tension spring, 709 through hole, 8 oil drain pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the invention provides an oil-immersed power transformer based on negative-pressure anti-overflow filling, which comprises a transformer body 1, wherein heat dissipation fins 2 are fixedly connected to the outer surface of the transformer body 1, a low-voltage winding 4 and a high-voltage winding 3 are respectively fixedly connected to the upper surface of the transformer body 1, an oil conservator 5 is fixedly connected to the upper end of the transformer body 1, the oil conservator 5 is mutually communicated with the inside of the transformer body 1, a protective shell 6 is fixedly connected to the right end of the oil conservator 5, an oil filling hole 501 is formed in the upper surface of the oil conservator 5, a plug 502 is movably clamped in the oil filling hole 501, an oil discharge pipe 8 is fixedly connected to the front side of the transformer body 1, a fixing plate 7 is arranged at the lower end of the transformer body 1, the fixing plate 7 is inverted T-shaped, a mounting hole 701 is formed in a transverse plate of the fixing plate 7, the fixing plate 7 is provided with a mounting hole 701, so that the transformer body 1 can be conveniently fixed with the outside through the fixing plate 7, the fixed plate 7 is inverted T-shaped, so that the contact area of the fixed plate 7 and the outside is increased, the fixed plate is more stable and firm after being fixed, a damping mechanism is arranged on the fixed plate 7, and oil injection equipment is arranged in the protective shell 6;
wherein, the damping mechanism comprises a connecting rod 101, the connecting rod 101 is fixedly connected with the lower end of the transformer body 1, the upper surface of the vertical plate of the fixing plate 7 is provided with an internal groove 702, the internal part of the internal groove 702 is fixedly connected with a damping ring 703, the damping ring 703 is in an elliptical ring shape and has certain elasticity, the upper end of the damping ring is provided with a through hole 709, the lower end of the connecting rod 101 penetrates through the through hole 709 and extends to the internal part of the damping ring 703, the lower end of the connecting rod 101 is fixedly connected with a damping spring 103, the end of the damping spring 103 which is not contacted with the connecting rod 101 is fixedly connected with the internal part of the damping ring 703, the connecting rod 101 is fixedly sleeved with a connecting plate 102, the lower surface of the connecting plate 102 is an arc surface, one side of the connecting plate 102 which is close to the damping ring 703 is fixedly connected with the damping ring 703, the internal part of the damping ring 703, by the damping ring 703, when the transformer body 1 vibrates, the vibration force is transmitted to the connection rod 101, the vibration of the connection rod 101 causes the damping spring 103 to contract and expand, and when the connection rod 101 vibrates, the damping ring 703 is compressed to deform the damping ring 703, and at this time, the spring 705 and the damping ring 703 contract and expand due to the support of the spring 705 and the damping ring 703 having a certain elasticity, the vibration force is damped and buffered, so that the stability of the transformer body 1 during working is ensured, meanwhile, the damage to internal electronic elements caused by vibration generated by the transformer body 1 is avoided, so that the short circuit phenomenon of an internal circuit of the transformer body 1 is avoided, the normal regulation and transmission of voltage of the transformer body 1 are ensured, and the financial expenditure caused by maintenance and replacement of the electronic elements is avoided;
further, a connecting block 105 is fixedly connected to the lower surface of the transformer body 1, two auxiliary rods 104 are rotatably connected to the inside of the connecting block 105, a moving groove 706 is formed in the lower surface of the built-in groove 702, two sliders 707 are slidably connected to the inside of the moving groove 706, tension springs 708 are fixedly connected to the opposite sides of the two sliders 707, the ends of the two tension springs 708, which are not in contact with the sliders 707, are fixedly connected to the inner wall of the moving groove 706, the ends of the two auxiliary rods 104, which are not in contact with the connecting block 105, are rotatably connected to the two sliders 707, the two auxiliary rods 104 are arranged in a splayed shape, when the transformer body 1 vibrates and shakes up and down, the distance between the two auxiliary rods 104 changes, as the distance between the two auxiliary rods 104 increases and decreases, the two sliders 707 move relatively and oppositely in the moving groove 706, and at this time, the tension springs 708 contract and expand, the vibration force generated by the transformer body 1 is damped and buffered again, so that electronic elements in the transformer body 1 are protected from being damaged to the greatest extent, the stability of the transformer body 1 in the working process is ensured, and the normal transmission of electric power is further ensured;
a bearing rod 503 is fixedly connected inside the conservator 5, the bearing rod 503 is perpendicular to the oil filling hole 501, a floating ball 504 is connected to the bearing rod 503 in a sliding mode, when the interior of the conservator 5 is filled with oil, the floating ball 504 slides upwards on the bearing rod 503 along with the continuous increase of the liquid level, and finally the oil filling hole 501 is blocked along with the continuous upward movement of the floating ball 504, so that the phenomenon of transformer oil overflow is avoided, the pollution to the outer surface of the conservator 5 caused by the transformer oil overflow is avoided, the waste of resources is further reduced, the trouble of cleaning the conservator in the later period is reduced, and the labor intensity of operators is reduced;
in the invention, the oiling device comprises a rotating shaft 601, the rotating shaft 601 is arranged inside a protective shell 6, a rotating hole 608 is arranged inside the protective shell 6, the rotating shaft 601 is rotatably connected inside the rotating hole 608, a clockwork spring 609 is arranged on the outer surface of the rotating shaft 601, two ends of the clockwork spring 609 are respectively and fixedly connected to the surface of the rotating shaft 601 and the inner wall of the rotating hole 608, an oiling pipe 602 is wound on the outer surface of the rotating shaft 601, one end of the oiling pipe 602 penetrates through the protective shell 6 and extends out of the outer surface of the protective shell 6, one end of the oiling pipe 602 penetrating out of the protective shell 6 is slidably connected with the protective shell 6, a connecting flange 605 is fixedly connected to one end of the oiling pipe 602 penetrating through the protective shell 6, a limiting block 603 is fixedly sleeved on one end of the oiling pipe 602 penetrating through the protective shell 6, a valve 604 is arranged on one end of the oiling pipe 602 penetrating through the protective shell 6, one end of the oiling pipe 602 penetrates into the rotating shaft 601 and extends out of the left end of the rotating shaft 601, the right side of the conservator 5 is fixedly connected with a connecting pipe 607, one end of the connecting pipe 607, which is not contacted with the conservator 5, is provided with a rotating flange pipe fitting 606, the rotating flange pipe fitting 606 is an existing structure and is not described in detail herein, one end of the oil filling pipe 602, which does not penetrate through the protective shell 6, is fixedly connected with the rotating flange pipe fitting 606, through the arranged oil filling pipe 602, when the transformer body 1 needs to be filled with oil, the oil filling pipe 602 is pulled downwards, the oil filling pipe 602 is stressed to drive the rotating shaft 601 to rotate, the oil filling pipe 602 is loosened from the rotating shaft 601 at the moment, and is connected with an external oil filling pump through the connecting flange 605, so as to start the oil filling pump, transformer oil is filled into the inside of the oil filling pipe 602 through the oil filling pipe 602, and is filled into the inside of the connecting pipe 607 through the oil filling pipe 602, and is finally filled into the inside of the, the phenomenon of backflow of oil liquid is avoided, further, the oil filling pipe 602 is not stressed, the clockwork spring 609 contracts to drive the rotating shaft 601 to rotate, so that the oil filling pipe 602 is wound on the rotating shaft 601 again, meanwhile, the oil filling pipe 602 can be prevented from being completely retracted into the protective shell 6 through the arranged limiting block 603, further, the oil filling pipe is convenient to use next time, and the situation that when the clockwork spring 609 rebounds, the valve 604 collides with the protective shell 6 due to the upward movement of the oil filling pipe 602 to damage the valve 604 is avoided, the service life of the valve is prolonged, the maintenance and replacement times are reduced, meanwhile, the oil filling pipe 602 is more convenient to be butted with an external main oil pump through the arranged connecting flange 605, and when the rotating shaft 601 rotates, the connecting pipe 607 cannot rotate due to the looseness and the rewinding of the oil filling pipe 602, the phenomena that the oil filling pipe 602 is wound and is difficult to stretch and retract are avoided, and normal use of the oil filling pipe is guaranteed.
The working principle is as follows: when the oil-immersed power transformer based on negative pressure anti-overflow filling is used;
the first step is as follows: the transformer body 1 is conveniently fixed with the outside through the arranged fixing plate 7 by arranging the mounting hole 701 on the fixing plate 7, the contact area of the fixing plate 7 and the outside is increased by arranging the fixing plate 7 in an inverted T shape, the fixing plate is more stable and firm after the fixing is finished, the fixing plate 7 is provided with a damping mechanism, and the protective shell 6 is internally provided with oil injection equipment;
the second step is that: by the damping ring 703, when the transformer body 1 vibrates, the vibration force is transmitted to the connection rod 101, the vibration of the connection rod 101 causes the damping spring 103 to contract and expand, and when the connection rod 101 vibrates, the damping ring 703 is compressed to deform the damping ring 703, and at this time, the spring 705 and the damping ring 703 contract and expand due to the support of the spring 705 and the damping ring 703 having a certain elasticity, the vibration force is damped and buffered, so that the stability of the transformer body 1 during working is ensured, meanwhile, the damage to internal electronic elements caused by vibration generated by the transformer body 1 is avoided, so that the short circuit phenomenon of an internal circuit of the transformer body 1 is avoided, the normal regulation and transmission of voltage of the transformer body 1 are ensured, and the financial expenditure caused by maintenance and replacement of the electronic elements is avoided;
the third step: when the transformer body 1 vibrates and shakes up and down, the distance between the two auxiliary rods 104 changes, and as the distance between the two auxiliary rods 104 increases and decreases, the two sliding blocks 707 move oppositely and oppositely inside the moving groove 706, at the moment, the tension spring 708 contracts and expands to absorb and buffer the vibration force generated by the transformer body 1 again, so that electronic components inside the transformer body 1 are protected to the maximum extent from being damaged, the stability of the transformer body 1 during working is ensured, and the normal transmission of electric power is ensured;
the fourth step: through the arranged floating ball 504, when the interior of the conservator 5 is filled with oil, the floating ball 504 slides upwards on the bearing rod 503 along with the continuous increase of the liquid level, and finally blocks the oil filling hole 501 along with the continuous upward movement of the floating ball 504, so that the phenomenon of transformer oil overflow is avoided, the pollution of the transformer oil overflow to the outer surface of the conservator 5 is avoided, the waste caused by the transformer oil overflow is avoided, the resource waste is further reduced, the trouble of cleaning the conservator in the later period is reduced, and the labor intensity of operators is reduced;
the fifth step: through the oil filling pipe 602, when oil needs to be filled into the transformer body 1, the oil filling pipe 602 is pulled downwards, the oil filling pipe 602 is stressed to drive the rotating shaft 601 to rotate, at the moment, the oil filling pipe 602 is loosened from the rotating shaft 601 and then is connected with an external oil filling pump by using the connecting flange 605, then the oil filling pump is started, transformer oil is filled into the oil filling pipe 602 through the oil filling pump and then is filled into the connecting pipe 607 through the oil filling pipe 602, and finally is filled into the oil conservator 5 and flows into the transformer body 1 through the oil conservator 5, after oil filling is finished, the valve 604 is closed, the phenomenon that oil flows backwards is avoided, further, the oil filling pipe 602 is not stressed, the spring 609 contracts to drive the rotating shaft 601 to rotate, so that the oil filling pipe 602 is wound on the rotating shaft 601 again, and meanwhile, the oil filling pipe 602 can be prevented from completely retracting into the protective shell 6 through the set limiting block 603, and then conveniently use next time, and avoid clockwork spring 609 when taking place to kick-back, the rebound of notes oil pipe 602 makes valve 604 and protecting crust 6 bump and causes the damage to valve 604, improve its life, reduce the number of times of maintenance and change, make notes oil pipe 602 more conveniently dock with outside main oil pump through flange 605 that sets up simultaneously, and rotation flange pipe fitting 606 through the setting, make pivot 601 when rotating, connecting pipe 607 can not rotate owing to the loose and the rewinding of notes oil pipe 602, avoid appearing notes oil pipe 602 winding and be difficult to flexible phenomenon, guarantee its use that can be normal.
Claims (8)
1. The utility model provides an oil-immersed power transformer based on filling of negative pressure anti-overflow, includes transformer body (1), and the fixed surface of transformer body (1) is connected with heat dissipation wing (2), and the upper surface of transformer body (1) is fixedly connected with low voltage winding (4) and high voltage winding (3) respectively, and the upper end fixedly connected with conservator (5) of transformer body (1), conservator (5) and the inside of transformer body (1) communicate its characterized in that each other: right-hand member fixedly connected with protecting crust (6) of conservator (5), oil filler point (501) have been seted up to the upper surface of conservator (5), the inside activity joint of oil filler point (501) has jam (502), front side fixedly connected with oil extraction pipe (8) of transformer body (1), the lower extreme of transformer body (1) is provided with fixed plate (7), fixed plate (7) are the T font of handstand, mounting hole (701) have been seted up on the diaphragm of fixed plate (7), be provided with damper on fixed plate (7), the inside of protecting crust (6) is provided with oiling equipment.
2. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 1, characterized in that: damping mechanism includes connecting rod (101), connecting rod (101) fixed connection is at the lower extreme of transformer body (1), built-in groove (702) have been seted up to the upper surface of fixed plate (7) riser, inside fixedly connected with damping ring (703) of built-in groove (702), damping ring (703) are oval ring shape, through-hole (709) have been seted up to the upper end of damping ring (703), the lower extreme of connecting rod (101) runs through-hole (709) and extends to the inside of damping ring (703), the lower extreme fixedly connected with damping spring (103) of connecting rod (101), damping spring (103) are not in the inside of damping ring (703) with the one end fixed connection of connecting rod (101) contact.
3. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 2, characterized in that: connecting plate (102) are fixedly sleeved on connecting rod (101), the lower surface of connecting plate (102) is an arc-shaped surface, one side of connecting plate (102) close to damping ring (703) is fixedly connected with damping ring (703), the inside fixedly connected with spring (705) of damping ring (703), the inside fixedly connected with bracing piece (704) of built-in groove (702), one end of bracing piece (704) which is not contacted with built-in groove (702) is fixedly connected with the lower side of damping ring (703).
4. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 1, characterized in that: lower fixed surface of transformer body (1) is connected with connecting block (105), the inside rotation of connecting block (105) is connected with two auxiliary rods (104), shifting chute (706) have been seted up to the lower surface of built-in groove (702), the inside sliding connection of shifting chute (706) has two slider (707), the equal fixedly connected with extension spring (708) in one side that two slider (707) carried on the back mutually, two extension spring (708) do not with the equal fixed connection of one end of slider (707) contact on the inner wall of shifting chute (706), two auxiliary rods (104) do not rotate with the one end of connecting block (105) contact and are connected on two slider (707), two auxiliary rods (104) are the splayed setting.
5. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 1, characterized in that: oiling equipment includes pivot (601), pivot (601) set up the inside at protecting crust (6), rotation hole (608) have been seted up to the inside of protecting crust (6), pivot (601) rotate to be connected in the inside of rotating hole (608), the surface winding of pivot (601) has oiling pipe (602), the surface of protecting crust (6) is run through and the protecting crust (6) is extended to the one end of oiling pipe (602), oiling pipe (602) run through the one end and protecting crust (6) sliding connection of protecting crust (6), oiling pipe (602) run through one of protecting crust (6) and serve fixedly connected with flange (605), oiling pipe (602) run through one of protecting crust (6) and serve fixed the stopper (603) of having cup jointed, oiling pipe (602) run through one of protecting crust (6) and serve and be provided with valve (604).
6. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 5, characterized in that: the outer surface of the rotating shaft (601) is provided with a clockwork spring (609), and two ends of the clockwork spring (609) are respectively and fixedly connected to the surface of the rotating shaft (601) and the inner wall of the rotating hole (608).
7. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 5, characterized in that: the one end that protective housing (6) was not run through in oiling pipe (602) penetrates the inside of pivot (601) and stretches out from the left end of pivot (601), the right side fixedly connected with connecting pipe (607) of conservator (5), connecting pipe (607) not be provided with the one end of conservator (5) contact and rotate flange pipe fitting (606), oiling pipe (602) do not run through one end and rotation flange pipe fitting (606) fixed connection of protective housing (6).
8. The oil-immersed power transformer based on negative pressure anti-overflow filling of claim 1, characterized in that: the bearing rod (503) is fixedly connected to the inner portion of the oil conservator (5), the bearing rod (503) is perpendicular to the oil filling hole (501), and a floating ball (504) is connected to the bearing rod (503) in a sliding mode.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267519A (en) * | 2021-11-11 | 2022-04-01 | 卫世伟 | Oil-immersed power transformer based on negative pressure anti-overflow filling |
| CN117577420A (en) * | 2023-10-26 | 2024-02-20 | 苏州夏特电气有限公司 | High-impedance transformer with built-in reactor |
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| CN207765286U (en) * | 2017-12-16 | 2018-08-24 | 广州增盛电气设备有限公司 | The automatic oil compensation device of oily type transformer |
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| CN213400773U (en) * | 2020-08-13 | 2021-06-08 | 潘宗宝 | Transformer fixing base with shock-absorbing function |
| CN213583398U (en) * | 2020-11-23 | 2021-06-29 | 南通志和电气有限公司 | Oiling device for transformer oil tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207765286U (en) * | 2017-12-16 | 2018-08-24 | 广州增盛电气设备有限公司 | The automatic oil compensation device of oily type transformer |
| CN209708788U (en) * | 2019-03-29 | 2019-11-29 | 国网山东省电力公司梁山县供电公司 | A kind of transformer oiling auxiliary system |
| CN213400773U (en) * | 2020-08-13 | 2021-06-08 | 潘宗宝 | Transformer fixing base with shock-absorbing function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114267519A (en) * | 2021-11-11 | 2022-04-01 | 卫世伟 | Oil-immersed power transformer based on negative pressure anti-overflow filling |
| CN114267519B (en) * | 2021-11-11 | 2023-06-30 | 共信电力科技有限公司 | Oil-immersed power transformer based on negative pressure anti-overflow filling |
| CN117577420A (en) * | 2023-10-26 | 2024-02-20 | 苏州夏特电气有限公司 | High-impedance transformer with built-in reactor |
| CN117577420B (en) * | 2023-10-26 | 2024-10-01 | 苏州夏特电气有限公司 | High-impedance transformer with built-in reactor |
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| CN113421748B (en) | 2022-07-01 |
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