Compulsory circulative cooling formula transformer
Technical field
The utility model relates to field transformer, especially relates to a kind of compulsory circulative cooling formula transformer.
Background technology
Transformer is a kind of equipment that can change alternating voltage.Except for voltage of transformation; transformer is also for converting alternating current, impedance and changing phase place etc.; in the transformer course of work, can discharge very high heat; in order to reduce the heat of transformer; conventionally transformer can be placed in to the fuel tank that transformer oil is housed, this arranges and can carry out absorbing and cooling temperature to transformer, but the heat absorbing when transformer oil is too high; cannot dispel the heat to self time, easily burn out transformer.
For solving the heat dissipation problem of transformer oil, people can arrange radiating tube in the side of transformer, and the two ends of radiating tube are connected with fuel tank top and bottom respectively; This setting has certain cooling-down effect, but its circulation rate is slow, and radiating effect is poor, cause the cold and hot layering in transformer top and bottom obvious, and the transformer oil temperature of fuel tank upper end is too high, easily reduces the operating efficiency of transformer, even causes transformer to be burned; And the heat abstractor of the good transformer of existing radiating effect is installed and the expense of use is high, volume is large, and difficulty is installed.
Utility model content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of good heat dissipation effect, the compulsory circulative cooling formula transformer that cost is low.
To achieve these goals, the utility model is by the following technical solutions: a kind of compulsory circulative cooling formula transformer, comprise fuel tank, in described fuel tank, be provided with iron core and be set around the winding outside iron core, described top of oil-tank is provided with high-voltage conductive rod and low voltage conductive bar, also comprise controller and be located at the heat abstractor in fuel tank one side, this heat abstractor comprises the first radiating tube, the second radiating tube and the 3rd radiating tube; Described the first radiating tube comprises the first oil inlet end being connected with fuel tank upper end and the first oil outlet end being connected with fuel tank lower end; Described the second radiating tube comprises the second oil inlet end being connected with fuel tank upper end and the second oil outlet end being connected with fuel tank lower end; Described the 3rd radiating tube comprises the 3rd oil inlet end being connected with fuel tank upper end and the 3rd oil outlet end being connected with fuel tank lower end; Described the first radiating tube and the 3rd radiating tube are positioned at the both sides of the second radiating tube, and described the first oil outlet end, the second oil outlet end and the front siphunculus of the 3rd oil outlet end front end and rear siphunculus interconnect; Described the first radiating tube is provided with the first electromagnetically operated valve between front siphunculus and rear siphunculus, and described the second radiating tube is provided with a circulating pump between front siphunculus and rear siphunculus, and described the 3rd radiating tube is provided with the second electromagnetically operated valve between front siphunculus and rear siphunculus; Described controller is electrically connected with the first electromagnetically operated valve, the second electromagnetically operated valve and circulating pump.
Further, on described the first radiating tube, the second radiating tube and the 3rd radiating tube, be equipped with fin.
Described fuel tank is provided with the inductor for sensor transformer oil temperature, and this inductor is electrically connected with controller.
This transformer only needs a circulating pump just can realize the acceleration circulation of transformer oil in multiple radiating tubes, not only accelerate circulation cooling speed, also saved installation cost simultaneously, when closing the first electromagnetically operated valve and the second electromagnetically operated valve, open after circulating pump, circulating pump work can be accelerated circulation rate with together with transformer oil in the 3rd radiating tube by the first radiating tube, and then can make the transformer oil in whole fuel tank carry out fully rapidly together circulation cooling; This fin is set, has increased the area of dissipation of radiating tube, and then accelerated radiating rate; Controller is set, can realizes automatically and controlling, without artificial interference, convenient, and can automatically open or close as required circulating pump, save electric energy.
In sum, the utlity model has following advantage: the heat abstractor good heat dissipation effect of described transformer, save the cost of installing and using; And can automatically open or close as required circulating pump, save electric energy, without artificial interference, easy to use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out to clear, complete description.
As shown in Figure 1, a kind of compulsory circulative cooling formula transformer, comprise fuel tank 1, in described fuel tank 1, be provided with iron core and be set around the winding outside iron core, described fuel tank 1 top is provided with high-voltage conductive rod and low voltage conductive bar, in described fuel tank 1, be provided with inductor, this inductor is located at fuel tank 1 inner roof wall, casing 1 roof is demountable structure, and fuel tank 1 roof is bolted, this inductor can be responded to the variations in temperature of fuel tank 1 interior transformer oil, described transformer also comprises controller, and be located at the heat abstractor in fuel tank 1 one sides, this heat abstractor comprises the first radiating tube 2, the second radiating tube 3 and the 3rd radiating tube 4, described the first radiating tube 2 comprises the first oil inlet end 21 being connected with fuel tank 1 upper end and the first oil outlet end 22 being connected with fuel tank 1 lower end, described the second radiating tube 3 comprises the second oil inlet end 31 being connected with fuel tank 1 upper end and the second oil outlet end 32 being connected with fuel tank 1 lower end, described the 3rd radiating tube 4 comprises the 3rd oil inlet end 41 being connected with fuel tank 1 upper end and the 3rd oil outlet end 42 being connected with fuel tank 1 lower end.Described the first radiating tube 2 and the 3rd radiating tube 4 are positioned at the both sides of the second radiating tube 3, and described the first oil outlet end 22, the second oil outlet end 32 and the 3rd oil outlet end 42 interconnect by front siphunculus 7 and rear siphunculus 5, described the first radiating tube 2 is provided with the first electromagnetically operated valve 23 between front siphunculus 7 and rear siphunculus 5, described the second radiating tube 3 is provided with a circulating pump 33 between front siphunculus 7 and rear siphunculus 5, described the 3rd radiating tube 4 is provided with the second electromagnetically operated valve 43 between front siphunculus 7 and rear siphunculus 5, described rear siphunculus 5 with respect to front siphunculus 7 further from fuel tank 1, this the first electromagnetically operated valve 23 is set, the second electromagnetically operated valve 43 and circulating pump 33, in the time of excess Temperature, can close the first electromagnetically operated valve 23 and the second electromagnetically operated valve 43, transformer oil after cooling in radiating tube is discharged after all accelerating by circulating pump, ON cycle pump 33, accelerate the circulation of transformer oil by circulating pump 33, this setting only needs a circulating pump just can accelerate the circulation of multiple radiating tubes, not only accelerate circulation cooling speed, also saved the cost of installing and using simultaneously, circulating pump work can be accelerated circulation rate with together with transformer oil in the 3rd radiating tube by the first radiating tube, and then can make the transformer oil in whole fuel tank carry out fully rapidly together circulation cooling, on described the first radiating tube 2, the second radiating tube 3 and the 3rd radiating tube 4, be equipped with fin 6, this fin is set, increased the area of dissipation of radiating tube, and then accelerated radiating rate.
Described controller is electrically connected with the first electromagnetically operated valve 23, the second electromagnetically operated valve 43, inductor and circulating pump 33, realizes automatically and controlling, without artificial interference, convenient, and can automatically open or close as required circulating pump, reduce the workload of circulating pump, save electric energy.
The course of work: according to the use of transformer oil, maximum temperature and the minimum temperature of transformer oil are set in inductor, the temperature that senses fuel tank 1 interior transformer oil when inductor is during higher than maximum temperature, induction installation sends high temperature signal to controller, controller receives after signal, controlling successively the first electromagnetically operated valve 23 closes, the first electromagnetically operated valve 23 cuts out and circulating pump 33 is opened, the first closed electromagnetic valve 23, after the first electromagnetically operated valve 23 cuts out, make the first radiating tube 2, transformer oil after the second radiating tube 3 and the interior heat radiation of the 3rd radiating tube 4 all needs to discharge after circulating pump accelerates, circulating pump 33 forced circulation, have accelerated the circulation rate of the interior transformer oil of the first radiating tube 2, the second radiating tube 3 and the 3rd radiating tube 4, and then have made the transformer oil in fuel tank 1 all carry out sufficient circulation temperature lowering, and the speed of transformer oil cooling is accelerated, transformer oil in inductor senses fuel tank 1 is during lower than minimum temperature, induction installation sends low-temperature signal to controller, and controller receives after signal, and controlled circulation pump 33 quits work successively, the first electromagnetically operated valve 23 opens and the second electromagnetically operated valve 43 is opened, transformer oil circulation rate is slack-off, and the transformer oil circulation in the first radiating tube 2, the second radiating tube 3 and the 3rd radiating tube 4 recovers normal.
Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the utility model protection.