CN113674959A

CN113674959A - Transformer conservator capable of draining and removing impurities

Info

Publication number: CN113674959A
Application number: CN202110868658.4A
Authority: CN
Inventors: 曹青竹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-19

Abstract

The invention relates to the technical field of transformers and discloses a transformer conservator capable of draining water and removing impurities, which comprises an conservator shell, a partition plate and a buffer oil groove, wherein an oil injection cavity is formed inside the partition plate and the conservator shell, a sliding block is connected inside the oil injection cavity in a sliding mode, and an oil injection groove is formed inside the sliding block. According to the invention, by designing the partition plate, the oil injection cavity, the slide block, the pressure spring, the air bag and the fixing plate, when oil is injected into the oil conservator, cooling oil enters the oil injection cavity to drive the slide block to move downwards, the pressure spring is extruded by the slide block to enable the pressure plate to act on the air bag, gas in the air bag is pressed into the air outlet hole, the stop block slides downwards in the sliding groove to open the water outlet hole by pressing the gas in the air outlet hole, water in the lower layer in the oil conservator is driven to flow out through the water outlet hole and finally discharged out of the oil conservator through the water outlet hole, and the phenomenon that the insulation between an iron core and a coil of the transformer is influenced by the fact that water in the oil conservator enters the oil tank along with the circulation between the oil conservator and the oil tank is avoided.

Description

Transformer conservator capable of draining and removing impurities

Technical Field

The invention relates to the technical field of transformers, in particular to a transformer conservator capable of draining water and removing impurities.

Background

The transformer conservator creates conditions for expansion with heat and contraction with cold of transformer oil, and the design of the conservator can ensure that the transformer oil tank is filled with oil at any temperature and under any operating condition, thereby ensuring the operating reliability of the transformer.

In normal use of the transformer, oil in the oil tank is only contacted with a small amount of air in the conservator, but the oil can be affected with damp and oxidized when the oil is contacted with the air, so that the oil contains moisture, if the moisture enters the oil tank of the transformer along with the circulation of the oil way along with the oil of the transformer, poor heat dissipation effect in the transformer can be caused, even the insulation between the iron core and the coil is incomplete, and eddy current is formed in the iron core of the transformer, so that a large amount of heat energy is generated, electric energy is directly consumed in a heat form, which is the iron loss of the transformer in common words, the larger the iron loss is, the less the electromotive force generated by the secondary coil of the transformer after transformation is generated, and the lower the efficiency of the transformer is also low.

Disclosure of Invention

Aiming at the defects of the existing transformer conservator in the background technology in the using process, the invention provides the transformer conservator capable of draining water and removing impurities, which has the advantages that the water in the conservator can be drained during oil filling, impurities can be prevented from entering an oil tank along with the circulation of oil, and the technical problems in the background technology are solved.

The invention provides the following technical scheme: a transformer conservator capable of removing impurities through drainage comprises an conservator shell, a partition plate and an oil buffering groove, wherein an oil injection cavity is formed inside the partition plate and the conservator shell, a slide block is connected inside the oil injection cavity in a sliding mode, an oil injection groove is formed inside the slide block, a pressure spring is fixedly connected to the lower side of the slide block, a pressure plate is fixedly connected to the bottom of the pressure spring, an air bag is fixedly connected to the lower side of the pressure plate, a fixing plate is fixedly connected to the lower side of the air bag and fixedly connected with the side wall of the lower portion of the oil injection cavity, an oil injection hole is formed in the middle of the partition plate, a water outlet hole is formed in the bottom of the partition plate, an air outlet hole is formed in the upper side of the water outlet hole, a sliding groove is fixedly connected to the middle of the bottom side of the water outlet hole, a spring is fixedly connected to the bottom side inside of the sliding groove, a stop block is fixedly connected to the top of the spring, and an oil storing groove is fixedly connected to the left side wall of the oil buffering groove, the oil through hole has been seted up to the bottom that the lower part is located the oil storage tank in the oil buffering groove left side wall, the inside sliding connection of oil storage tank has the floating block, first oil outlet groove has been seted up to the inside left lower part of floating block, the oil inlet tank has been seted up on the upper right portion of floating block, the second oil outlet groove has been seted up on the upper portion of oil storage tank left side wall, the through-hole has been seted up to the lower part of oil storage tank right side wall.

Preferably, the left side wall of the conservator shell is provided with an air inlet at the top of the air bag, and the left side wall of the conservator shell is provided with a drain hole at the lower side of the fixing plate.

Preferably, first oil groove and second oil groove correspond and communicate when the floating block is located the top of oil storage tank, oil feed tank corresponds and communicates with the through-hole when the floating block is located the bottom of oil storage tank.

Preferably, the oil filling groove is communicated with the oil filling hole when the sliding block moves downwards to the maximum limit, and the check block slides out of the air outlet hole under the air pressure in the air bag at the moment.

Preferably, when the air bag is not pressed by the pressure plate, the air inlet hole is communicated with the air bag.

The invention has the following beneficial effects:

1. according to the invention, by designing the partition plate, the oil injection cavity, the slide block, the pressure spring, the air bag and the fixing plate, when oil is injected into the oil conservator, cooling oil enters the oil injection cavity to drive the slide block to move downwards, the pressure spring is extruded by the slide block to enable the pressure plate to act on the air bag, gas in the air bag is pressed into the air outlet hole, the stop block slides downwards in the sliding groove to open the water outlet hole by pressing the gas in the air outlet hole, water in the lower layer in the oil conservator is driven to flow out through the water outlet hole and finally discharged out of the oil conservator through the water outlet hole, and the phenomenon that the insulation between an iron core and a coil of the transformer is influenced by the fact that water in the oil conservator enters the oil tank along with the circulation between the oil conservator and the oil tank is avoided.

2. According to the invention, through designing the oil buffering groove, the oil storage groove and the floating block, the oil filling groove on the sliding block is aligned with the oil filling hole during oil filling, cooling oil is filled into the oil conservator through the oil filling hole, the floating block enters the oil storage groove through the second oil outlet hole and moves downwards to enable the through hole to be communicated with the bottom of the oil storage groove, so that the cooling oil enters the oil buffering groove to replenish the oil tank, when the interior of the oil tank is heated and expanded to enable the cooling oil to enter the oil buffering groove, the floating block slides upwards through the cooling oil and is discharged into the oil conservator through the first oil outlet groove to realize cooling, impurities and the like in the cooling oil in the oil conservator float upwards through the injection of the cooling oil, and when the interior of the oil conservator is full, the cooling oil containing impurities on the upper layer of the oil conservator is discharged into the collection box, so that the impurities in the cooling oil are prevented from influencing the performance of the cooling oil and influencing the heat dissipation effect of the cooling oil.

3. According to the invention, by designing the oil filling hole and the second oil outlet hole, when oil is filled, cooling oil enters the oil conservator from the oil filling hole and is pressed into the second oil outlet hole by the rise of the oil pressure in the oil conservator, and because the second oil outlet hole is designed in the middle of the oil storage tank, moisture at the bottom and impurities floating on the upper layer in the oil conservator cannot enter the oil buffering tank, so that the cooling oil containing the moisture and the impurities is prevented from being supplemented into the oil tank to influence the heat dissipation and the insulativity of the transformer.

Drawings

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

FIG. 2 is a structural diagram illustrating a downward movement state of a slider according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention.

In the figure: 1. a conservator housing; 11. an air inlet; 12. a drain hole; 2. an oil return pipe; 3. an oil filling port; 4. a partition plate; 41. an oil injection cavity; 42. a slider; 421. an oil injection groove; 422. a pressure spring; 43. pressing a plate; 44. an air bag; 45. a fixing plate; 46. an oil filler hole; 47. a water outlet hole; 471. a chute; 472. a spring; 473. a stopper; 48. an air outlet; 5. an oil buffering groove; 51. an oil storage tank; 511. an oil through hole; 512. a second oil outlet groove; 513. a through hole; 52. floating blocks; 521. a first oil outlet groove; 522. an oil inlet groove; 6. and a collection box.

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. 1-4, a transformer conservator with drainage and impurity removal functions comprises an conservator shell 1, wherein an oil return pipe 2 is fixedly connected to the middle of the lower side of the conservator shell 1, an oil filling opening 3 is formed in the left side of the top of the conservator shell 1, a partition plate 4 is fixedly connected to the middle left side of the inner cavity of the conservator shell 1, an oil filling cavity 41 is formed inside the partition plate 4 and the conservator shell 1, a sliding block 42 is slidably connected to the inside of the oil filling cavity 41, an oil filling groove 421 is formed inside the sliding block 42, a pressure spring 422 is fixedly connected to the lower side of the sliding block 42, a pressure plate 43 is fixedly connected to the bottom of the pressure spring 422, an air bag 44 is fixedly connected to the lower side of the pressure plate 43, a fixing plate 45 is fixedly connected to the lower side wall of the lower part of the oil filling cavity 41, a hole 46 is formed in the middle of the partition plate 4, a water outlet hole 47 is formed in the bottom of the partition plate 4, an air outlet hole 48 is formed in the upper side of the water outlet hole 47, the middle part of the bottom side of the water outlet hole 47 is fixedly connected with a sliding groove 471, the bottom side of the inside of the sliding groove 471 is fixedly connected with a spring 472, the top part of the spring 472 is fixedly connected with a check block 473, the upper side of the check block 473 extends into the air outlet hole 48, the oil filling groove 421 is communicated with the oil filling hole 46 when the sliding block 42 moves downwards to the maximum, at the moment, the check block 473 slides out of the air outlet hole 48 by the air pressure inside the air bag 44, so that the water outlet hole 47 can be opened through the air bag 44 during oil filling, the water inside the conservator shell 1 is discharged, the air inlet hole 11 is formed at the top part of the air bag 44 on the left side wall of the conservator shell 1, the water outlet hole 12 is formed at the lower side of the fixing plate 45 on the left side wall of the conservator shell 1, the oil buffer groove 5 is fixedly connected with the outer side of the oil return pipe 2 at the middle part of the inner cavity of the conservator shell 1, the oil storage groove 51 is fixedly connected with an oil storage groove 51, the oil through hole 511 is formed at the middle lower part of the left side wall of the oil buffer groove 5, the oil through hole 511 is communicated with the oil storage tank 51 and the inside of the oil relief tank 5, the floating block 52 is slidably connected inside the oil storage tank 51, the first oil outlet tank 521 is arranged at the left lower part inside the floating block 52, the oil inlet tank 522 is arranged at the right upper part of the floating block 52, the second oil outlet tank 512 is arranged at the upper part of the left side wall of the oil storage tank 51, the first oil outlet tank 521 corresponds to and is communicated with the second oil outlet tank 512 when the floating block 52 is positioned at the top of the oil storage tank 51, so as to ensure that heated cooling oil can enter the inside of the conservator shell 1 for cooling and heat dissipation, the through hole 513 is arranged at the lower part of the right side wall of the oil storage tank 51, the oil inlet tank 522 corresponds to and is communicated with the through hole 513 when the floating block 52 is positioned at the bottom of the oil storage tank 51, so as to ensure that the conservator can supplement oil to the transformer oil to avoid the insufficient cooling oil in the oil tank to cause the leakage of the transformer core to cause insufficient cooling oil to cause the insufficient heat dissipation and poor insulation of the iron core, thereby causing the increase of the transformer, the collection tank 6 is fixedly connected at the top of the right side wall of the conservator shell 1, ensure that the impurities on the upper layer of the cooling oil in the oil conservator shell 1 can be discharged into the collecting box 6 through oil supplement and oil return.

When oil is replenished into the conservator shell 1, the sliding block 42 is moved downwards through the injection of cooling oil to enable the oil filling groove 421 to be communicated with the oil filling hole 46, the pressure spring acts on the pressure plate 43 to press the air bag 44, so that air in the air bag 44 enters the air outlet and the stopper 473 slides downwards along the sliding groove 471 to open the water outlet 47, at the moment, water is positioned at the lower layer of the cooling oil due to the density of the water and the oil, so that the water in the conservator shell 1 flows out along the water outlet 47 and is finally discharged through the water outlet 12, at the same time, the cooling oil injected into the conservator shell 1 enters the oil storage groove 51 through the second oil outlet groove 512 to enable the floating block 52 to move downwards to communicate the oil inlet groove 522 with the through hole 513 to replenish the oil tank, when the cooling oil heated in the oil tank expands to enter the oil buffering groove 5, the floating block 52 moves upwards to communicate the oil storage groove 51 with the second oil outlet groove 512 through the first oil outlet groove 521 and discharge the cooling oil into the conservator for cooling, the oil level in the conservator shell 1 is raised through the discharged cooling oil, and impurities on the upper layer of the cooling oil are discharged into the collecting box 6, so that the situation that the heat dissipation of the transformer and the insulativity between the iron core and the coil are affected due to the fact that the moisture and the impurities generated by oxidation in the conservator shell 1 enter the oil tank along with the circulation of the cooling oil is avoided.

The use method (working principle) of the invention is as follows:

firstly, when the interior of the transformer is heated, cooling oil enters the oil buffering groove 5 through the oil return pipe 2, so that the cooling oil enters the oil storage groove 51 and finally enters the interior of the conservator for cooling and heat dissipation, when the conservator is filled with oil, oil is injected through the oil injection port 3 and enters the oil injection cavity 41 and extrudes the sliding block 42, so that the sliding block 42 moves downwards, meanwhile, the pressing plate 43 extrudes the air bag 44 to press air into the air outlet hole 48, so that the stopper 473 moves downwards to open the water outlet hole 47, so that water in the conservator shell 1 is discharged and finally flows out through the water outlet hole 12, meanwhile, impurities and the like on the upper layer of the cooling oil are discharged into the collecting box 6 when the cooling oil in the conservator shell 1 is fully filled, meanwhile, the cooling oil enters the oil storage groove 51 through the second oil outlet groove 512 so that the floating block 52 moves downwards to enable the oil inlet groove 522 to be communicated with the through hole 513 to fill the oil in the oil tank, and because the second oil outlet groove 512 is positioned in the middle of the inner cavity of the conservator, the oil storage groove 51 can only be the cooling oil in the middle layer in the inner cavity of the conservator, the problem that the efficiency of the transformer is low due to the fact that moisture, impurities and the like enter the oil tank along with cooling oil to affect the heat dissipation effect and the insulativity of the transformer is solved.

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 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. The utility model provides a transformer conservator of drainage edulcoration, includes conservator shell (1), baffle (4) and gentle oil groove (5), its characterized in that: the oil injection cavity (41) is formed inside the partition plate (4) and the oil conservator shell (1), a sliding block (42) is connected inside the oil injection cavity (41) in a sliding mode, an oil injection groove (421) is formed inside the sliding block (42), a pressure spring (422) is fixedly connected to the lower side of the sliding block (42), a pressing plate (43) is fixedly connected to the bottom of the pressure spring (422), an air bag (44) is fixedly connected to the lower side of the pressing plate (43), a fixing plate (45) is fixedly connected to the lower side of the air bag (44), the fixing plate (45) is fixedly connected with the side wall of the lower portion of the oil injection cavity (41), an oil injection hole (46) is formed in the middle of the partition plate (4), a water outlet hole (47) is formed in the bottom of the partition plate (4), an air outlet hole (48) is formed in the upper side, of the partition plate (4) located at the water outlet hole (47), and a sliding groove (471) is fixedly connected to the middle of the bottom side of the water outlet hole (47), the utility model discloses a lubricating oil tank, including spout (471), bottom side fixedly connected with spring (472) inside spout (471), top fixedly connected with dog (473) of spring (472), the left side wall fixedly connected with oil storage tank (51) of oil buffer groove (5), oil through hole (511) have been seted up to the bottom that the lower part is located oil storage tank (51) in the oil buffer groove (5) left side wall, the inside sliding connection of oil storage tank (51) has floating block (52), first oil groove (521) have been seted up to the inside left lower part of floating block (52), oil feed tank (522) have been seted up to the upper right portion of floating block (52), second oil groove (512) have been seted up to the upper portion of oil storage tank (51) left side wall, through-hole (513) have been seted up to the lower part of oil storage tank (51) right side wall.

2. The transformer conservator capable of draining water and removing impurities according to claim 1, wherein: the left side wall of the conservator shell (1) is positioned at the top of the air bag (44) and is provided with an air inlet (11), and the left side wall of the conservator shell (1) is positioned at the lower side of the fixing plate (45) and is provided with a water drainage hole (12).

3. The transformer conservator capable of draining water and removing impurities according to claim 1, wherein: first oil outlet groove (521) corresponds and communicates with second oil outlet groove (512) when floating block (52) are located the top of oil storage tank (51), oil inlet groove (522) corresponds and communicates with through-hole (513) when floating block (52) are located the bottom of oil storage tank (51).

4. The transformer conservator capable of draining water and removing impurities according to claim 1, wherein: when the sliding block (42) moves downwards to the maximum, the oil filling groove (421) is communicated with the oil filling hole (46), and at the moment, the check block (473) slides out of the air outlet hole (48) under the air pressure in the air bag (44).

5. The transformer conservator capable of draining water and removing impurities according to claim 1, wherein: when the air bag (44) is not pressed by the pressure plate (43), the air inlet holes (11) are communicated with the air bag (44).