CN111755214A

CN111755214A - Transformer magnetic leakage driving type heat dissipation oil tank

Info

Publication number: CN111755214A
Application number: CN202010790197.9A
Authority: CN
Inventors: 孙亚林; 王利利
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2020-10-09

Abstract

The invention discloses a transformer magnetic leakage driving type radiating oil tank which comprises a tank body, wherein two porous protective covers are symmetrically arranged on the outer side wall of the tank body, an oil pumping pipe and an oil discharging pipe are respectively arranged on the upper wall and the lower wall of the inner side of each porous protective cover in a stacking and coiling manner, two electromagnetic oil pumps are symmetrically arranged on the outer side wall of the tank body, one ends of the oil pumping pipe and one end of the oil discharging pipe are respectively arranged on the electromagnetic oil pumps, one section of the oil discharging pipe of the oil pumping pipe, which is far away from the electromagnetic oil pumps, is respectively arranged above the side wall of the tank body and below the side wall of the tank body, and. According to the invention, the leakage flux of the transformer is converted into electric energy through the leakage flux induction coil, so that the driving shaft rotates, the airflow fan and the impeller fan are driven to rotate through the rotation of the driving shaft, the airflow contact heat exchange speed and the transformer oil circulation heat dissipation speed are increased, the active heat dissipation is realized, the electric energy is saved, and the size of the transformer is not increased.

Description

Transformer magnetic leakage driving type heat dissipation oil tank

Technical Field

The invention relates to the field of power transformers, in particular to a transformer magnetic flux leakage driving type heat dissipation oil tank.

Background

The transformer can produce great heat in the use, dispels the heat fast to the transformer and can increase the work efficiency of transformer, and transformer heat dissipation oil tank can make transformer core winding soak in transformer oil, provides good insulation protection promptly, also can dispel the heat to core winding.

The existing transformer oil tank usually adopts passive heat dissipation, namely, adopts a heat dissipation sheet or a heat dissipation pipe to dissipate heat, the heat dissipation speed is low, and active heat dissipation needs to be added with an active heat dissipation power module, so that the volume of the transformer is increased, and a large amount of electric energy is consumed.

Disclosure of Invention

The invention aims to solve the defects that in the prior art, the passive heat dissipation speed is low, an independent power supply is actively needed, and the energy consumption is high, and provides a transformer leakage flux driving type heat dissipation oil tank.

In order to achieve the purpose, the invention adopts the following technical scheme:

the transformer magnetic leakage driving type heat dissipation oil tank comprises a tank body, wherein two porous protective covers are symmetrically installed on the outer side wall of the tank body, an oil pumping pipe and an oil discharging pipe are respectively installed on the upper wall and the lower wall of the inner side of each porous protective cover in a stacked and coiled mode, two electromagnetic oil pumps are symmetrically installed on the outer side wall of the tank body, one ends of the oil pumping pipe and the oil discharging pipe are installed on the electromagnetic oil pumps, one sections, far away from the electromagnetic oil pumps, of the oil discharging pipes of the oil pumping pipe are respectively installed above the side wall of the tank body and below the side wall of the tank body, and magnetic leakage induction coils are;

the electromagnetism oil pump includes oil pocket and electromagnetism chamber, it inserts and is equipped with the drive shaft to rotate on the electromagnetism oil pump, the air current fan is installed to the one end that the electromagnetism oil pump was kept away from to the drive shaft, the one end that the drive shaft is close to the electromagnetism oil pump passes the oil pocket and extends to in the electromagnetism chamber and rotate and install on the lateral wall in electromagnetism chamber, the drive shaft is located one section of oil intracavity and installs the impeller fan, the drive shaft is located one section of electromagnetism intracavity and installs permanent magnet rotor, the annular is installed drive winding on the inside wall in electromagnetism chamber.

Preferably, the oil pumping pipe and the oil discharge pipe are both communicated with the oil cavity.

Preferably, the leakage induction coil is electrically connected to the driving winding.

The invention has the following beneficial effects:

1. make transformer core's magnetic leakage produce alternating current in magnetic leakage induction coil through magnetic leakage induction coil, make drive winding circular telegram produce the reversal rotating magnetic field through connecting drive winding, then drive winding rotates through producing the reversal rotating magnetic field and promoting permanent magnet rotor, make the driving shaft drive air current fan rotate and produce the air current, make the heat on taking out oil pipe and the oil drain pipe taken away fast, realize the initiative heat dissipation, increase the radiating rate, and need not additionally to provide the power, do not change the transformer volume, utilize the magnetic leakage drive of transformer, reach energy-conserving purpose.

2. The impeller fan in the oil cavity is rotated through the rotation of the driving shaft, the rotating impeller fan generates suction at the end of the oil pumping pipe, thrust is generated at the end of the oil discharging pipe, the transformer oil in the tank is pumped into the tank through the oil pumping pipe and is discharged back to the tank through the oil discharging pipe, the circulation speed of the transformer oil in the tank is increased, and the heat dissipation speed is increased.

In summary, the driving shaft is rotated by the magnetic leakage induction coil and the transformer magnetic leakage is converted into electric energy, the airflow contact heat exchange speed and the transformer oil circulation heat dissipation speed are increased by the rotation of the driving shaft driving the airflow fan and the impeller fan to rotate, active heat dissipation is realized, electric energy is saved, and the size of the transformer is not increased.

Drawings

Fig. 1 is a schematic structural diagram of a leakage flux driven heat dissipation oil tank of a transformer according to the present invention;

fig. 2 is an enlarged view of a part of an electromagnetic oil pump of the transformer leakage driving type heat dissipation oil tank provided by the invention.

In the figure: the device comprises a box body 1, a magnetic leakage induction coil 2, a porous shield 3, an oil pumping pipe 4, an oil discharging pipe 5, an electromagnetic oil pump 6, an oil cavity 61, an electromagnetic cavity 62, a driving winding 621, a driving shaft 7, an impeller fan 71, a permanent magnet rotor 72 and an airflow fan 8.

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.

Referring to fig. 1-2, a transformer magnetic leakage driving type heat dissipation oil tank comprises a tank body 1, wherein two porous shields 3 are symmetrically installed on the outer side wall of the tank body 1, an oil pumping pipe 4 and an oil discharging pipe 5 are respectively installed on the upper and lower walls of the inner side of each porous shield 3 in a laminated and coiled manner, two electromagnetic oil pumps 6 are symmetrically installed on the outer side wall of the tank body 1, one ends of the oil pumping pipe 4 and the oil discharging pipe 5 are installed on the electromagnetic oil pumps 6, a section, far away from the electromagnetic oil pumps 6, of the oil discharging pipe 5 of the oil pumping pipe 4 is installed above the side wall of the tank body 1 and below the side wall of the tank body 1, and magnetic leakage induction;

the electromagnetic oil pump 6 comprises an oil cavity 61 and an electromagnetic cavity 62, a driving shaft 7 is rotatably inserted in the electromagnetic oil pump 6, an air flow fan 8 is installed at one end, far away from the electromagnetic oil pump 6, of the driving shaft 7, one end, close to the electromagnetic oil pump 6, of the driving shaft 7 penetrates through the oil cavity 61 to extend into the electromagnetic cavity 62 and is rotatably installed on the side wall of the electromagnetic cavity 62, an impeller fan 71 is installed at one section, located in the oil cavity 61, of the driving shaft 7, a permanent magnet rotor 72 is installed at one section, located in the electromagnetic cavity 62, of the driving shaft 7, and a driving winding 621 is annularly;

the airflow fan 8 rotates to enable airflow to flow fast to exchange heat with the oil pumping pipe 4 and the oil discharging pipe 5, transformer oil heat in the oil pumping pipe 4 and the oil discharging pipe 5 is taken away fast, active heat dissipation is achieved, and the heat dissipation speed is increased.

The oil pumping pipe 4 and the oil discharge pipe 5 are both communicated with the oil cavity 61, and when the impeller fan 71 rotates, transformer oil in the box body 1 can be circulated by pumping oil through the oil pumping pipe 4 and discharging oil through the oil discharge pipe 5, so that the heat dissipation speed is increased.

Magnetic leakage induction coil 2 electric connection drive winding 621, magnetic leakage induction coil 2 converts the magnetic leakage that transformer alternating current produced into alternating current, and alternating current passes through drive winding 621 and produces the alternating rotating magnetic field, and drive permanent magnet rotor 72 drives drive shaft 7 and rotates, and drive shaft 7 rotates and makes impeller fan 71 and air current fan 8 rotate.

When the transformer oil cooling device is used, when the transformer works to generate heat, the temperature of transformer oil rises, the leakage flux when the transformer works enables the leakage induction coil 2 to generate alternating current to be conveyed to the driving winding 621, the driving winding 621 generates an alternating rotating magnetic field to drive the permanent magnet rotor 72 to drive the driving shaft 7 to rotate, the impeller fan 71 and the airflow fan 8 synchronously rotate, the impeller fan 71 circularly extracts the transformer oil in the box body 1 through the oil pumping pipe 4 and the oil discharge pipe 5 to perform heat exchange and cooling, the airflow fan 8 increases the additional air flow rate, and cold air flow can rapidly cool the transformer oil in the oil pumping pipe 4 and the oil discharge pipe 5 through contact heat exchange.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a transformer magnetic leakage drive formula heat dissipation oil tank, includes box (1), its characterized in that, two porous guard shields (3) are installed to the symmetry on the lateral wall of box (1), every the inboard upper and lower wall of porous guard shield (3) stacks the dish respectively and is equipped with oil pumping pipe (4) and arranges oil pipe (5), two electromagnetic oil pump (6) are installed to the symmetry on the lateral wall of box (1), oil pumping pipe (4) and arrange oil pipe (5) one end and all install on electromagnetic oil pump (6), one section that electromagnetic oil pump (6) were kept away from in oil pumping pipe (5) of oil pumping pipe (4) is installed respectively in the lateral wall top of box (1) and the lateral wall below of box (1), magnetic leakage induction coil (2) are installed to the symmetry on the inner wall of box (1);

electromagnetic oil pump (6) are including oil pocket (61) and electromagnetism chamber (62), rotate on electromagnetic oil pump (6) and insert and be equipped with drive shaft (7), drive shaft (7) are kept away from the one end of electromagnetic oil pump (6) and are installed air current fan (8), the one end that drive shaft (7) are close to electromagnetic oil pump (6) is passed oil pocket (61) and is extended to in electromagnetism chamber (62) and rotate and install on the lateral wall of electromagnetism chamber (62), drive shaft (7) are located one section of oil pocket (61) and are installed impeller fan (71), drive shaft (7) are located one section of electromagnetism chamber (62) and install permanent magnet rotor (72), drive winding (621) are installed to the annular on the inside wall of electromagnetism chamber (62).

2. The transformer leakage flux driven type heat dissipation oil tank according to claim 1, wherein the oil pumping pipe (4) and the oil discharging pipe (5) are both communicated with the oil cavity (61).

3. A transformer leakage driven heat dissipation oil tank according to claim 1, characterized in that the leakage induction coil (2) is electrically connected to the driving winding (621).