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CN-121122884-B - High-efficiency oil immersed transformer capable of exhausting rapidly

CN121122884BCN 121122884 BCN121122884 BCN 121122884BCN-121122884-B

Abstract

The invention discloses a high-efficiency oil immersed transformer capable of exhausting rapidly, which belongs to the technical field of oil immersed transformers and comprises a transformer body, wherein the transformer body comprises an oil tank, an oil guide assembly is assembled on the oil tank and comprises an oil guide pipe fixed on the oil tank, new oil is spirally accelerated through a spiral vane arranged in the oil guide pipe, an exhaust pipe is assembled on the oil guide pipe, spiral acceleration of oil is guided through the spiral vane through the oil guide assembly and a layered oil injection assembly, air bubbles are gathered towards the center of a pipeline by utilizing centrifugal force, efficient exhaust is realized by matching with non-spiral-section pressure rise and exhaust pipe, meanwhile, an oil separation part rotates along with liquid level change through a floating plate, and an elastic partition plate is pushed to incline by a linkage push rod, so that the new oil is injected in the sequence of upper layer, middle layer and lower layer.

Inventors

  • NAN ANJIAN
  • YANG JIANHE

Assignees

  • 申电电气有限公司

Dates

Publication Date
20260508
Application Date
20251024

Claims (5)

  1. 1. The utility model provides a but high-efficient oil-immersed transformer of quick exhaust, includes transformer body (10), transformer body (10) include oil tank (11), its characterized in that, be equipped with on oil tank (11) and lead oily subassembly (20), lead oily subassembly (20) including being fixed in oil tank (11) lead oil pipe (21), new oil realizes spiral acceleration motion through installing helical blade (22) in leading oil pipe (21), lead oil pipe (21) and be equipped with blast pipe (23); The oil tank (11) is internally provided with a layered oil injection assembly (30), the layered oil injection assembly (30) comprises oil injection rings (31), one sides of a plurality of the oil injection rings (31) are jointly provided with oil distribution pieces (32), and the oil distribution pieces (32) realize oil feeding into the oil injection rings (31) at different positions through floating plates (34) arranged on the oil injection rings (31); The oil distributing piece (32) comprises an oil distributing pipe (321) fixed on the oil injecting ring (31), a step seat (322) is fixed in the oil distributing pipe (321), two partition plates (323) are arranged on the step seat (322), and an inner cavity of the oil distributing pipe (321) is partitioned into a lower oil distributing chamber (324), a middle oil distributing chamber (325) and an upper oil distributing chamber (326) through the partition plates (323); The lower oil distributing chamber (324), the middle oil distributing chamber (325) and the upper oil distributing chamber (326) are respectively communicated with the three oil injecting rings (31) through conveying pipes (327), a flow guiding pipe (328) is fixed at the top of the oil distributing pipe (321), one end of the flow guiding pipe (328) penetrating into the oil distributing pipe (321) is attached to one side wall of the lower oil distributing chamber (324), and the other end of the flow guiding pipe (328) is connected with one end of the oil guiding pipe (21) penetrating into the oil tank (11); two mounting grooves are formed in the outer wall of the oil distribution pipe (321), the two mounting grooves are all rotationally connected with a switch plate (329), the bottoms of one side wall of each mounting groove are all connected with a sliding rod (3212) through a sliding groove, one end of each sliding rod (3212) penetrating into the oil distribution pipe (321) is fixedly provided with a push rod (3213), the outer surface of each sliding rod (3212) is sleeved with a second spring (3214), and two ends of each second spring (3214) are connected with the corresponding push rod (3213) and one side wall of the oil distribution pipe (321).
  2. 2. The high-efficiency oil immersed transformer capable of exhausting rapidly according to claim 1, wherein the top and the bottom of the two side walls of the installation groove are provided with installation holes, spherical columns (3211) are connected in the installation holes through first springs (3210), and the top and the bottom of the two sides of the switch board (329) are provided with limit holes matched with the spherical columns (3211).
  3. 3. A high-efficiency oil-immersed transformer capable of exhausting rapidly according to claim 1, wherein two retaining rods (33) are fixed on the oil injection ring (31) positioned above, and the floating plate (34) is slidably mounted on the retaining rods (33).
  4. 4. The high-efficiency oil immersed transformer capable of exhausting rapidly according to claim 2, wherein a puncture cone (24) is fixed on the inner wall of the oil guide pipe (21) and the outer wall of the spiral blade (22), an exhaust groove is formed in the top of the outer wall of the oil distribution pipe (321), and an exhaust one-way valve is arranged at the outlet end of the exhaust pipe (23).
  5. 5. The high-efficiency oil immersed transformer capable of exhausting rapidly according to claim 1, wherein the transformer body (10) further comprises an iron core (12) assembled in an oil tank (11), a winding is arranged on the iron core (12), an insulating sleeve (13) is assembled at the top of the oil tank (11), an oil exhaust pipe is assembled at the bottom of the oil tank (11), and radiating fins (14) are arranged on the outer wall of the oil tank (11).

Description

High-efficiency oil immersed transformer capable of exhausting rapidly Technical Field The invention relates to the technical field of oil immersed transformers, in particular to a high-efficiency oil immersed transformer capable of exhausting air rapidly. Background The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and mainly comprises a primary coil, a secondary coil and an iron core (magnetic core), and has the main functions of voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like, and is basic equipment for power transmission and distribution, and widely applied to the fields of industry, agriculture, traffic, urban communities and the like. The transformer component comprises a transformer body (iron core, winding, insulation and lead), transformer oil, an oil tank, a cooling device, a voltage regulating device, a protecting device (a moisture absorber, a safe air passage, a gas relay, an oil storage tank, a temperature measuring device and the like) and an outgoing line sleeve, and the iron core and the winding of the oil immersed transformer are immersed into the oil tank filled with the transformer oil together for enhancing insulation and cooling conditions. The conventional oil injection mode generally adopts single-point injection, new oil directly enters a certain oil layer, insufficient mixing of the new oil and the old oil is caused, a local temperature mutation area is formed, the temperature difference can cause uneven thermal stress of an iron core and a winding, material fatigue risk is increased, and in addition, the temperature difference between the new oil and the old oil can also cause dissolved gas to be separated out and aggravate the problem of air bubbles. Disclosure of Invention The invention aims to solve the problem that a conventional oiling mode lacks an effective exhaust mechanism, and provides a high-efficiency oil-immersed transformer capable of exhausting rapidly. In order to achieve the above purpose, the present invention adopts the following technical scheme: The high-efficiency oil immersed transformer capable of exhausting rapidly comprises a transformer body, wherein the transformer body comprises an oil tank, an oil guide assembly is assembled on the oil tank and comprises an oil guide pipe fixed on the oil tank, new oil realizes spiral acceleration movement through a spiral blade arranged in the oil guide pipe, and an exhaust pipe is assembled on the oil guide pipe; the oil tank is internally provided with a layered oil injection assembly, the layered oil injection assembly comprises oil injection rings, one sides of a plurality of the oil injection rings are jointly provided with oil distribution pieces, and the oil distribution pieces realize oil delivery into oil injection rings at different positions through floating plates assembled on the oil injection rings. As a further description of the above technical solution: the oil distributing piece comprises an oil distributing pipe fixed on the oil injecting ring, a stepped seat is fixed in the oil distributing pipe, two partition plates are arranged on the stepped seat, and an inner cavity of the oil distributing pipe is divided into a lower oil distributing chamber, a middle oil distributing chamber and an upper oil distributing chamber through the partition plates. As a further description of the above technical solution: the lower oil distributing chamber, the middle oil distributing chamber and the upper oil distributing chamber are respectively communicated with the three oil injection rings through conveying pipes, a flow guide pipe is fixed at the top of the oil distributing pipe, one end of the flow guide pipe penetrating into the oil distributing pipe is attached to one side wall of the lower oil distributing chamber, and the other end of the flow guide pipe is connected with one end of the oil guide pipe penetrating into the oil tank. As a further description of the above technical solution: two mounting grooves are formed in the outer wall of the oil distribution pipe, and switch plates are connected in the two mounting grooves in a rotating mode. As a further description of the above technical solution: The top and the bottom of mounting groove both sides wall have all seted up the mounting hole, there is the sphere post in the mounting hole through first spring coupling, spacing hole with sphere post looks adaptation has all been seted up to the top and the bottom of switch board both sides. As a further description of the above technical solution: the bottoms of two side walls of the mounting groove are respectively connected with a sliding rod through a sliding groove, one end of each sliding rod penetrating into the oil distributing pipe is fixedly provided with a push rod, the outer surface of each sliding rod is sleeved with a s