CN113643879B - Transformer of annular conservator - Google Patents

Abstract

The invention relates to the technical field of transformers and discloses a transformer with an annular oil conservator, wherein the outer ring of one side of an oil tank is fixedly provided with the oil conservator, the top of the oil conservator is provided with an air cavity, the inside of the oil conservator is provided with an annularly-arranged oil cavity, the bottom of the oil conservator is fixedly provided with a dirt collector communicated with the oil cavity, two sides of the inside of the oil cavity are symmetrically and movably provided with movable blocks communicated with the air cavity, the movable blocks are mutually sleeved and fixedly provided with corrugated pipes at the outer ring of the sleeved part, two sides of the movable blocks are symmetrically and movably provided with idler wheels, the bottom wall of the movable block at the bottommost part is fixedly provided with a rack extending into a topmost limiting sliding groove, two sides of the movable block are symmetrically provided with air grooves, the inside of the air grooves are movably provided with rotating wheels, and the movable blocks and the corrugated pipe structures are movably arranged at two sides of the annular oil conservator structure, so that the stability and the adjusting effect of the transformer are improved.

Description

Transformer of annular conservator

Technical Field

The invention relates to the technical field of transformers, in particular to a transformer with an annular oil conservator.

Background

The transformer is the device that utilizes electromagnetic induction's principle to change voltage now, and it utilizes iron core and winding to realize the transformation of voltage, and in the in-service use is to place it in the oil tank to fill the oil tank with transformer oil inside, be connected to the oil tank with the conservator simultaneously and be used for being full of all the time according to expend with heat and contract with cold in the control oil tank, the structure of transformer has now finalized the design basically, but it still has certain problem:

1. the existing oil conservators are installed at the top of an oil tank in an oil barrel shape, so that transformer oil in the oil tank is located at the bottom of the transformer oil in the oil conservator, certain hydraulic pressure difference is caused by the height difference, the change of the transformer oil in the oil tank is influenced by pressure when the transformer oil is contracted in a hot field and is inaccurate due to large hydraulic pressure in the oil tank, meanwhile, the distance between the transformer oil in the oil conservator and an iron core winding is long, so that the oil change between the oil tank and the oil conservator is more easily frequent, certain working interference on a gas relay is easy to cause error touch, and due to large height difference, some impurities accumulated in the oil conservator can fall into the oil tank downwards, the normal work of a transformer is not facilitated, and pollution gas and the like can be generated at high temperature to influence normal detection;

2. the existing oil conservator adopts a corrugated pipe type, the corrugated pipe communicated with air is arranged in the oil conservator, when transformer oil in the oil conservator becomes more or less due to thermal expansion and cold contraction, pressure is generated on the corrugated pipe to enable the corrugated pipe to stretch and contract so as to adjust a hydraulic space in the oil conservator, however, the depth of the corrugated pipe in the oil conservator is different, synchronous stretching can not be achieved when the pressure changes, local stretching and local shortening are formed, local stress difference of the corrugated pipe is large due to long time in hydraulic pressure, local deformation rate is large, the service life of the oil conservator is prolonged, and rollers on two sides can not roll along the inner wall of the oil conservator due to the fact that the corrugated pipe in the oil conservator is not in the same depth, and the straightness of the corrugated pipe after stretching can not be guaranteed.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the transformer with the annular conservator, which has the advantages of good stability and good regulation effect, and solves the problems of the background technology.

The invention provides the following technical scheme: the utility model provides a transformer of annular conservator, includes the oil tank, the four sides fixed mounting of oil tank has the cooling tube, the middle part fixed mounting of oil tank inner chamber has the iron core, the outer lane winding of iron core has the winding, the top fixed mounting of oil tank has high-low pressure pipe box, the outer lane fixed mounting of oil tank one side has the conservator, connecting pipe fixedly connected with desiccator is passed through on the top of conservator, fixed mounting has gas relay between oil tank top and the conservator, the air cavity has been seted up at the top of conservator, the inside oil pocket that is cyclic annular and offers of offering of conservator, the bottom fixed mounting of conservator has the dirt collector with the oil pocket intercommunication, the inside bilateral symmetry movable block of oil pocket intercommunication, cup joint and cup joint department outer lane fixed mounting has the bellows between the movable block mutually, the bilateral symmetry movable mounting of movable block has the gyro wheel.

Preferably, the inside of movable block has been seted up spacing spout and the movable block is the I shape activity in proper order and cup joints in spacing spout, the bottommost fixed mounting has the rack that stretches into in the spacing spout of top on the diapire in the movable block, the gas tank has been seted up to movable block bilateral symmetry, the inside movable mounting in gas tank has the runner, the inside runner back department movable mounting that is located of movable block has rather than coaxial pivoted driving gear, the position movable mounting that spacing spout is located between rack and the driving gear has rather than the drive gear of meshing, the outer lane of runner is cyclic annular even fixed mounting has the pullover, the trepanning has been seted up to the inside of pullover, the kicking block has been cup jointed in the trepanning activity, fixedly connected with spring between the interior tip of trepanning inner wall and kicking block.

Preferably, the oil conservator is annularly arranged outside the oil tank, and the liquid level of the transformer oil in the oil conservator is higher than that of the oil tank.

Preferably, the radian of the middle part of the air groove positioned at the two sides of the air inlet and outlet of the air groove is different, the top block is always kept in contact with the air groove when the air groove is rotated to the radian position, the sleeve head at the top of the rotating wheel corresponds to the position of the air inlet and outlet of the air groove, and the spring inside the sleeve head at the top is in a fully extended state.

The invention has the following beneficial effects:

1. through the conservator that has set up ring structure, and install the outer lane position at the oil tank, compare in prior art, improve the structure of conservator and install it with the oil tank can make the liquid level in the oil tank too low relatively for safe position, reduce the oil pressure, and the whole height of conservator is compared with the oil tank and is held level, just so effectually avoided the frequent oil change of transformer oil between conservator and oil tank, simultaneously at the top position and the oil tank intercommunication of conservator, the hydraulic oil impurity etc. of its bottom sediment can not enter into the oil tank, can guarantee the quality of transformer oil in the oil tank.

2. Through setting up annular conservator structure and there are movable block and bellows structure in its inside both sides movable mounting, compare in prior art, interval through movable block and bellows sets up and to have guaranteed that it still can reach flexible condition, but it separates the bellows through the movable block, and at the inside runner that sets up of movable block, gear isotructure and the cooperation install the rack on the bottommost movable block, can guarantee all can have a same extension shortening amount when every section bellows extension or shorten, guarantee the pressurized condition balanced, the deformation volume is little, set up the stability that the whole extending structure that the gyro wheel can guarantee to constitute on every movable block simultaneously, guarantee the linearity of extension, more do benefit to and improve its life.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is an enlarged view of FIG. 2 at B;

fig. 5 is an enlarged view of fig. 4 at C.

In the figure: 1. an oil tank; 2. a radiating pipe; 3. an iron core; 4. a winding; 5. a high-low pressure pipe sleeve; 6. an oil conservator; 601. an air cavity; 602. an oil chamber; 7. a moisture absorber; 8. a gas relay; 9. a dirt collector; 10. a movable block; 1001. a limiting chute; 1002. an air tank; 11. a bellows; 12. a rack; 13. a roller; 14. a rotating wheel; 15. a driving gear; 16. a transmission gear; 17. sleeving a head; 1701. trepanning; 18. a top block; 19. a spring.

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. 1-5, a transformer with an annular conservator comprises anoil tank 1, four sides of theoil tank 1 are fixedly provided with radiatingpipes 2, the middle part of the inner cavity of theoil tank 1 is fixedly provided with aniron core 3, the outer ring of theiron core 3 is wound with a winding 4, the top part of theoil tank 1 is fixedly provided with a high-low pressure pipe sleeve 5, the outer ring of one side of theoil tank 1 is fixedly provided with theconservator 6, the top end of theconservator 6 is fixedly connected with a moisture absorber 7 through a connecting pipe, agas relay 8 is fixedly arranged between the top part of theoil tank 1 and theconservator 6, the top part of theconservator 6 is provided with anair cavity 601, the interior of theconservator 6 is provided with anannular oil cavity 602, the bottom part of theconservator 6 is fixedly provided with adirt collector 9 communicated with theoil cavity 602,movable blocks 10 communicated with theair cavity 601 are symmetrically and movably arranged at two sides of the interior of theoil cavity 602, themovable block 10 at the top part is fixed to ensure that the air inside theair cavity 601 can be guided into themovable block 10 and acorrugated pipe 11, themovable blocks 10 are mutually sleeved, thecorrugated pipe 11 is fixedly arranged on the outer ring of the sleeved part, theidler wheels 13 are symmetrically and movably arranged on two sides of eachmovable block 10, themovable blocks 10 are internally provided with alimit sliding groove 1001, themovable blocks 10 are sequentially movably sleeved in thelimit sliding grooves 1001 in an I shape, the inner bottom wall of the bottommostmovable block 10 is fixedly provided with arack 12 extending into the topmostlimit sliding groove 1001, all themovable blocks 10 can be driven to synchronously slide by utilizing therack 12 when onemovable block 10 moves, thecorrugated pipe 11 of each section is ensured to be subjected to the same extension control, the condition that the stretching length is uneven is avoided, the two sides of eachmovable block 10 are symmetrically provided withair grooves 1002, the inside of eachair groove 1002 is movably provided with a rotatingwheel 14, and thedriving gear 15 which coaxially rotates with themovable block 10 is movably arranged on the back surface of the rotatingwheel 14, atransmission gear 16 meshed with thelimiting chute 1001 is movably mounted at a position between therack 12 and thedriving gear 15, asleeve head 17 is uniformly and fixedly mounted on the outer ring of the rotatingwheel 14 in an annular shape, asleeve hole 1701 is formed inside thesleeve head 17, atop block 18 is movably sleeved in thesleeve hole 1701, aspring 19 is fixedly connected between the inner wall of thesleeve hole 1701 and the inner end of thetop block 18, and thespring 19 abuts against thetop block 18 through the elastic force of thespring 19 so that thetop block 18 can keep an outward extending force.

Theoil conservator 6 is annularly arranged outside theoil tank 1, the height of the transformer oil liquid level inside theoil conservator 6 is higher than that of theoil tank 1, theoil conservator 6 can be used for collecting and discharging oil to keep theoil tank 1 filled with the transformer oil, therefore, the oil level of a transformer inside theoil conservator 6 cannot be too low, meanwhile, theoil conservator 6 is annularly arranged on the outer ring of theoil tank 1 to ensure that the oil pressure of most of the transformer oil inside theoil conservator 6 is acted on theoil conservator 6, the oil pressure inside theoil tank 1 is reduced, the change of the transformer oil inside theoil tank 1 during temperature change is more favorably adjusted, thedirt collector 9 is arranged at the bottom of theoil conservator 6 to prevent transformer oil impurities inside theoil conservator 6 from entering theoil tank 1, the transformer oil impurities can fall downwards to the bottommost position under the action of gravity to be collected, the surface area of the annularly arrangedoil conservator 6 is larger, and the heat dissipation of the transformer oil inside theoil conservator 6 is more favorably realized.

The radian of the middle portion of theair groove 1002 positioned at two sides of the air inlet and outlet is different, thetop block 18 always keeps contact with theair groove 1002 when theair groove 1002 rotates to the radian position, two bottom walls of thesleeve hole 1701 respectively contact with two sides of thetop block 18, so that air flow passing through theair groove 1002 can drive the rotatingwheel 14 to rotate and no air flow passes through therotating wheel 14 when the rotatingwheel 14 does not rotate, thesleeve head 17 at the top position of the rotatingwheel 14 is opposite to the position corresponding to the air inlet and outlet of theair groove 1002, and thespring 19 inside thesleeve head 17 at the top position is in a fully extended state, so that air can act on the rotatingwheel 14 to drive the rotatingwheel 14 to rotate when thecorrugated pipe 11 expands or contracts, the air inlet and outlet of theair groove 1002 corresponds to one side of the rotatingwheel 14, the air inlet and outlet of the air flow can be more beneficial to drive the rotating wheel to rotate, and the radians of theair groove 1002 are set to be different at two sides, so that thetop block 18 can play a certain resistance role when the side wall of theair groove 1002 abuts against the side wall when the rotatingwheel 14 rotates, and the air flow is prevented from passing through the small radian.

According to the working principle, when the temperature in theoil tank 1 rises, the transformer oil can expand by heating, the transformer oil added in theoil tank 1 enters theoil cavity 602 through the connecting pipe, the increased transformer oil in theoil cavity 602 can extrude thecorrugated pipe 11 to contract, the gas in thecorrugated pipe 11 is compressed and rotates by pushing therunner 14, enters the limitingsliding chute 1001 through thegas groove 1002, is discharged into the moisture absorber 7 through thegas cavity 601 and the connecting pipe and is finally discharged, thedriving gear 15 is driven to drive in the process that thecorrugated pipe 11 is discharged and therunner 14 rotates, therack 12 is driven to move upwards through thetransmission gear 16, eachmovable block 10 is driven to contract upwards by the same displacement amount through the movement of therack 12, so that the contraction condition of thecorrugated pipe 11 is the same, the uniformity of the pressure of the corrugated pipe is ensured, and meanwhile, a sufficient transformer oil expansion space is provided for thewhole oil cavity 602;

when the temperature in theoil tank 1 is reduced, the volume of the transformer oil is reduced when the transformer oil is cooled, at the moment, the transformer oil in theoil chamber 602 is supplemented into theoil tank 1 through a connecting pipe, negative pressure is formed due to the reduction of the transformer oil in theoil chamber 602, so that themovable block 10 is driven to move downwards to pull thecorrugated pipe 11 to extend, at the moment, gas entering theair cavity 601 through the moisture absorber 7 can run into the limiting slidinggroove 1001 and enter thecorrugated pipe 11 through theair groove 1002, the rotatingwheel 14 is driven to rotate when the gas passes through theair groove 1002, therack 12 is driven to move downwards through thedriving gear 15 and thetransmission gear 16, at the moment, therack 12 drives eachmovable block 10 to move for the same length to ensure that the extension amount of each section of thecorrugated pipe 11 is the same, and then the reduced transformer oil in theoil chamber 602 is compensated by the extendedcorrugated pipe 11 and themovable block 10.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a transformer of annular conservator, includes oil tank (1), the four sides fixed mounting of oil tank (1) has cooling tube (2), the middle part fixed mounting of oil tank (1) inner chamber has iron core (3), the outer lane winding of iron core (3) has winding (4), the top fixed mounting of oil tank (1) has high-low pressure pipe box (5), its characterized in that: an oil conservator (6) is fixedly mounted on the outer ring of one side of the oil tank (1), a moisture absorber (7) is fixedly connected to the top end of the oil conservator (6) through a connecting pipe, a gas relay (8) is fixedly mounted between the top of the oil tank (1) and the oil conservator (6), an air cavity (601) is formed in the top of the oil conservator (6), an annular oil cavity (602) is formed in the oil conservator (6), a dirt collector (9) communicated with the oil cavity (602) is fixedly mounted at the bottom of the oil conservator (6), movable blocks (10) communicated with the air cavity (601) are symmetrically and movably mounted on two sides of the interior of the oil cavity (602), corrugated pipes (11) are mutually sleeved among the movable blocks (10) and fixedly mounted on the outer ring of the sleeved portion, rollers (13) are symmetrically and movably mounted on two sides of the movable blocks (10), and the oil conservator (6) is annularly mounted outside the oil tank (1) and the liquid level of a transformer in the oil conservator is higher than that of the oil tank (1);

the movable block (10) is internally provided with a limiting sliding groove (1001), the movable block (10) is sequentially movably sleeved in the limiting sliding groove (1001) in an I shape, the bottommost part of the movable block (10) is internally and fixedly provided with a rack (12) extending into the topmost limiting sliding groove (1001) on the bottom wall, the movable block (10) is symmetrically provided with air grooves (1002) at two sides, a rotating wheel (14) is movably arranged in the air grooves (1002), a driving gear (15) coaxially rotating with the rotating wheel (14) is movably arranged at the back of the rotating wheel (14) in the movable block (10), a transmission gear (16) meshed with the limiting sliding groove (1001) is movably arranged at the position between the rack (12) and the driving gear (15), the outer ring of the rotating wheel (14) is annularly and uniformly fixedly provided with a sleeve head (17), a sleeve hole (1701) is formed in the sleeve head (17), a jacking block (18) is movably sleeved in the sleeve hole (1701), a spring (19) is fixedly connected between the inner end part of the sleeve hole (1701) and the inner end part of the jacking block (18), the radian sizes of the two sides of the air inlet and the air outlet of the air groove (1002) in the middle of the air groove are different, the jacking block (18) is always in contact with the air groove (1002) when rotating to the radian position of the air groove (1002), and the sleeve head (17) at the top position of the rotating wheel (14) is just opposite to the position corresponding to the air inlet and the air outlet of the air groove (1002) and the sleeve head at the top position (1: (b) 17) The inner spring (19) is in a fully extended state.

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