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CN-122025360-A - Insulating oil replacement device for oil immersed transformer

CN122025360ACN 122025360 ACN122025360 ACN 122025360ACN-122025360-A

Abstract

The invention discloses an insulating oil replacement device for an oil immersed transformer, and relates to the technical field of transformers. The insulating oil displacement device of the oil immersed transformer comprises an oil tank, wherein the top of the oil tank is fixedly connected with an oil inlet mechanism, the bottom of the oil tank is fixedly connected with an oil discharge mechanism, the oil inlet mechanism comprises a connecting pipe, the connecting pipe is fixedly connected to the top of the oil tank, a conservator is fixedly connected to the left side of the connecting pipe, and an oil inlet pipe is fixedly connected to the left side of the conservator. This oily formula transformer insulating oil displacement equipment, make stirring frame rotate through driving motor drive threaded rod, stir insulating oil, upwards promote the activity stopper simultaneously, make the relay barrel bottom form the negative pressure, promote the air in the insulating oil to separate out, avoid discharging into the inside insulating oil of oil tank in mix with air, and then avoid outside air to enter into the oil tank inside along with new insulating oil, played the effect of protection to oily formula transformer.

Inventors

  • HUA JIE
  • CHEN XIAOBING
  • ZHOU BIN
  • WANG YING
  • QIAN SUPING

Assignees

  • 中安(常州)电气有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (8)

  1. 1. The insulating oil displacement device of the oil immersed transformer comprises an oil tank (1) and is characterized in that an oil inlet mechanism (2) is fixedly connected to the top of the oil tank (1), and an oil discharge mechanism (3) is fixedly connected to the bottom of the oil tank (1); The oil inlet mechanism (2) comprises: The connecting pipe (21), the connecting pipe (21) is fixedly connected to the top of the oil tank (1); the oil conservator (22), the said oil conservator (22) is fixedly connected to left side of connecting pipe (21); the oil inlet pipe (23), oil inlet pipe (23) fixed connection is in conservator (22) left side, oil inlet pipe (23) top fixedly connected with first solenoid valve (24), first solenoid valve (24) top fixedly connected with relay bucket (25).
  2. 2. The insulation oil displacement device of the oil immersed transformer of claim 1, wherein an exhaust pipe (26) is fixedly connected to the outer wall of the relay barrel (25), an oil guiding basin (27) is fixedly connected to the top of the exhaust pipe (26), a gap support (28) is fixedly connected to the top of the oil guiding basin (27), and a barrel supporting rod (29) is fixedly connected to the top of the gap support (28).
  3. 3. The insulation oil displacement device for the oil immersed transformer, as claimed in claim 1, wherein the top of the relay barrel (25) is fixedly connected with a driving motor (210), an output shaft at the bottom of the driving motor (210) is fixedly connected with a threaded rod (212) inside the relay barrel (25), and the bottom of the threaded rod (212) is fixedly connected with an agitating frame (213).
  4. 4. The insulation oil displacement device of the oil immersed transformer is characterized in that a movable plug (211) is movably connected inside the relay barrel (25), a guide vertical groove is formed inside the relay barrel (25), a protrusion matched with the vertical groove is formed on the outer wall of the movable plug (211), the movable plug (211) cannot rotate around the axis of the relay barrel (25) inside the relay barrel (25), and a movable barrel (214) is fixedly connected to the bottom of the movable plug (211).
  5. 5. The insulation oil displacement device of the oil immersed transformer of claim 1, wherein the oil discharging mechanism (3) comprises an oil discharging pipe (31), the oil discharging pipe (31) is fixedly connected to the bottom of the oil tank (1), a second electromagnetic valve (32) is fixedly connected to the bottom of the oil discharging pipe (31), and a discharge pipe (33) is fixedly connected to the bottom of the second electromagnetic valve (32).
  6. 6. The insulation oil displacement device for the oil immersed transformer, as claimed in claim 5, wherein a closed ring (34) is fixedly connected to the inside of the discharge pipe (33), a closed plate (35) is arranged at the bottom of the closed ring (34), a limited-pressure spring (37) is fixedly connected to the bottom of the closed plate (35), a fixed plate (36) is fixedly connected to the bottom of the limited-pressure spring (37), and the fixed plate (36) is fixedly connected to the inside of the discharge pipe (33).
  7. 7. The insulation oil displacement device for the oil immersed transformer, as claimed in claim 5, is characterized in that an electric telescopic rod (38) is fixedly connected to the inner wall of the oil tank (1) at the top of the oil discharge pipe (31), an extrusion head (39) is fixedly connected to the bottom of the electric telescopic rod (38), and an oil discharge mechanism (3) is movably connected to the bottom of the extrusion head (39).
  8. 8. The insulation oil displacement device for an oil immersed transformer according to claim 7, wherein a plurality of openings are formed in the outer side of the extrusion head (39), and a plurality of openings are formed in the bottom of the extrusion head (39) at the top of the extrusion plate (310).

Description

Insulating oil replacement device for oil immersed transformer Technical Field The invention relates to the technical field of transformers, in particular to an insulating oil replacement device for an oil immersed transformer. Background The oil immersed transformer is a power transformer using transformer oil as insulating and cooling medium, is widely applied to power systems, effectively dissipates heat generated in operation and maintains electrical insulation performance through oil circulation, thereby ensuring stable operation of equipment in a high-efficiency state, and therefore the transformer becomes key equipment for ensuring safe operation of a power grid in the field of power transmission and distribution by virtue of high reliability and long service life; The patent with the application number 202410513084.2 cited in China discloses an insulating oil displacement device of an oil immersed transformer, which comprises an oil tank and a support frame, wherein an oil cover is arranged at the upper end of the oil tank through bolts, the support frame is arranged on the ground, the oil tank is arranged on the support frame, a displacement mechanism is arranged at one side of the oil tank, a conservator is arranged at the upper end of the oil cover, the displacement mechanism is connected with the conservator, an iron core is arranged between the oil tank and the oil cover, a plurality of sleeves are arranged at the upper end of the oil cover, the sleeves are connected with the iron core, the displacement mechanism comprises a connecting frame, and the connecting frame is arranged at one side of the oil tank in a clamping manner; When new insulating oil is added into the oil tank of the transformer, moist air can invade the inside of the transformer, moisture in the moist air is condensed into water drops on the insulating surface, so that the insulating strength suddenly drops and partial discharge can be possibly caused, meanwhile, oxygen in the air can be contacted with a high-temperature component, oxidation of the insulating oil and hydrolytic aging of a solid insulating material are rapidly accelerated, permanent damage is caused, the service life of the transformer is seriously shortened, and the risk of sudden insulating faults in operation is remarkably increased. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an insulating oil replacement device for an oil immersed transformer, which aims to solve the problems in the prior art. The oil tank is fixedly connected with an oil inlet mechanism, and the bottom of the oil tank is fixedly connected with an oil discharging mechanism; The oil feed mechanism includes: The connecting pipe is fixedly connected to the top of the oil tank; the oil conservator is fixedly connected to the left side of the connecting pipe; The oil inlet pipe, oil inlet pipe fixed connection is in the left side of the conservator, oil inlet pipe top fixedly connected with first solenoid valve, first solenoid valve top fixedly connected with relay bucket opens first solenoid valve, makes the insulating oil in the relay bucket enter into the conservator inside through oil inlet pipe, and insulating oil can flow into the oil tank inside through the connecting pipe afterwards, and when advancing oil, through oil extraction mechanism with the discharge of waste insulating oil. Preferably, the relay bucket outer wall fixedly connected with is arranged the pipe, the pipe top fixedly connected with leads the oil basin, lead oil basin top fixedly connected with clearance support, clearance support top fixedly connected with barrel support pole, will be equipped with the oil drum back-off of new insulating oil at the oil basin top to make barrel support pole be in the oil drum inside, at this moment, can make the insulating oil in the oil drum produce the clearance through the clearance support and flow into the oil basin inside, the inside insulating oil of oil basin can flow into the relay bucket inside through the pipe of discharging, when the insulating oil on the pipe can't flow into the relay bucket inside, the inside oil level of oil basin can rise gradually, when the inside insulating oil of oil basin is higher than the opening of oil drum, the inside insulating oil of oil drum then can't flow out. Preferably, the relay bucket top fixedly connected with driving motor, driving motor bottom output shaft is located the inside fixedly connected with threaded rod of relay bucket, threaded rod bottom fixedly connected with stirs the frame. Preferably, the inside swing joint of relay bucket has the activity stopper, the inside vertical groove that is provided with the direction of relay bucket, the activity stopper outer wall is provided with vertical groove complex arch, can make the activity stopper can't rotate around the relay bucket axle center in the relay bucket inside, activity stopper bottom fixedly connected with activity section o