Utilize the transformer of refrigeration machine cooling
Technical field
The utility model relates to field transformer, especially relates to a kind of transformer that utilizes refrigeration machine cooling.
Background technology
Current transformer all arranges transformer oil, in order to reduce the temperature of transformer oil, the heat sink that reduces transformer oil temperature is set, and current heat sink is that a flat cooling box is set in oil tank of transformer side, plugs multiple flat cooling monomers in the lower end of cooling box, area increased is passed through in this setting, strengthen radiating effect, but gap between its multiple cooling monomers is little, atmosphere draught-free, heat is easily assembled at gap location, the radiating effect variation on the monomer surface that causes dispelling the heat; And this heat abstractor all adopts metal to make, and manufacturing cost is high, complex structure, installs difficulty, and the heat radiation circulation rate of transformer oil is slow, easily causes transformer to damage because transformer oil temperature is too high.
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 transformer of refrigeration machine cooling that what heat radiation circulation rate was fast utilize.
To achieve these goals, the utility model is by the following technical solutions: a kind of transformer that utilizes refrigeration machine cooling, comprise fuel tank and the cooling box being connected with fuel tank, in described cooling box, be provided with heat abstractor, described heat abstractor comprises cooling pipe and is sheathed on the evaporation inner tube for heat absorption Working fluid flow in cooling pipe, between cooling pipe and evaporation inner tube, form the gap for transformer oil circulation, this cooling pipe comprises the oil inlet end and the oil outlet end that are connected with fuel tank, is connected an oil pump between oil outlet end and fuel tank; This evaporation inner tube connects one and accelerates cooling mechanism, and this evaporation inner tube comprises the working medium import and the sender property outlet that pass cooling pipe; Described acceleration cooling mechanism comprises the compressor being connected with sender property outlet, and this compressor connects a condenser pipe, and condenser pipe connects a choke valve, and choke valve is connected with the working medium import of evaporation inner tube; Described cooling box inwall is provided with the fan with screen pack.
As preferably, described condenser pipe is continuous U-shaped, and described cooling pipe is by cooling box bottom and screws on the spirality rising to top disc.
As preferably, described oil inlet end is connected with fuel tank upper end, and oil outlet end is connected with fuel tank lower end.
As preferably, described fan is 4, is wherein located at a side upper end of described cooling box for two, is located at cooling box opposite side lower end for another two.
In sum, the utlity model has following advantage: oil pump is set has accelerated the circulation rate of transformer oil, can accelerate the circulation of transformer oil, strengthen cooling-down effect; Heat sink energy fast reducing is set and passes into the transformer oil in cooling box, avoid transformer to damage because of excess Temperature; This construction for heat radiating device is simple, easy for installation, absorb the heat of transformer oil by the outer wall heat radiation of cooling pipe and inner evaporation inner tube, cooling-down effect obviously improves, and condenser pipe cooling rate is fast, improve cooling medium cooling rate and cooling effect, and then improved the cooling-down effect of transformer oil; Accelerate the radiating rate of cooling tube-surface simultaneously, further improved the radiating effect of transformer oil; Screen pack is also set avoids outside impurity to enter the normal work that affects heat sink in cooling box.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cooling pipe oil inlet end cutaway view of the present utility model.
Fig. 3 is the enlarged diagram at X place in Fig. 1.
Fig. 4 is A-A cutaway view in Fig. 3.
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 Figure 1-4, a kind of transformer that utilizes refrigeration machine cooling, comprise the fuel tank 1 of transformer oil and the cooling box 2 being connected with fuel tank 1 are housed, in described cooling box 2, be provided with heat abstractor 4, described heat abstractor 4 comprises cooling pipe 45 and is sheathed on the interior evaporation inner tube 43 for heat absorption Working fluid flow of cooling pipe 45, between cooling pipe 45 and evaporation inner tube 43, form the gap 44 for transformer oil circulation, this cooling pipe 45 comprises the oil inlet end 451 and the oil outlet end 452 that are connected with fuel tank 1, is connected an oil pump 6 between oil outlet end 452 and fuel tank 1; This evaporation inner tube 43 connects an acceleration cooling mechanism 3, and this evaporation inner tube 43 comprises the working medium import and the sender property outlet that pass cooling pipe 45; Described acceleration cooling mechanism 3 comprises the compressor 31 being connected with sender property outlet, and this compressor 31 connects a condenser pipe 32, and condenser pipe 32 connects a choke valve 5, and choke valve 5 is connected with the working medium import of evaporation inner tube 43; This heat sink energy fast reducing is set and passes into the transformer oil in cooling box, avoid transformer to damage because of excess Temperature.The construction for heat radiating device of this setting is simple, easy for installation, absorb the heat of transformer oil by the outer wall heat radiation of cooling pipe and inner evaporation inner tube, cooling-down effect obviously improves, and condenser pipe cooling rate is fast, improve cooling medium cooling rate and cooling effect, and then improved the cooling-down effect of transformer oil.
Concrete, described cooling pipe 45 is the spirality that is screwed on liter by cooling box 2 bottoms to top disc, and the cooling pipe heat dissipation capacity of this shape is large, good heat dissipation effect; Described condenser pipe 32 is continuous U-shaped, and this setting makes condenser pipe cooling-down effect better.
Further, described cooling box 2 inwalls are provided with the fan 8 with screen pack 81, and this fan has been accelerated the radiating rate of cooling tube-surface, have further improved the radiating effect of transformer oil; Screen pack 81 is set, this screen pack is set and avoids outside impurity to enter the normal work that affects heat sink in cooling box.
In order to make the cooling-down effect of cooling box better, more even, described fan 8 is 4, is wherein located at a side upper end of described cooling box 2 for two, is located at cooling box 2 opposite side lower ends for another two.
Transformer oil in fuel tank 1, in the time of work, the transformer oil of high temperature rises and is gathered in the upper end of fuel tank 1, and for the cooling-down effect that makes transformer oil more puts in place, described oil inlet end 451 is connected with fuel tank 1 upper end, and oil outlet end 452 is connected with fuel tank 1 lower end.
The course of work: the transformer oil of fuel tank 1 interior high temperature enters the cooling pipe 45 in cooling box 2 from oil inlet end 451, the temperature of the evaporation inner tube 43 absorbing, cooling pipe 45 interior transformer oil in cooling pipe 45, thereby the heat absorption working medium that makes to evaporate in inner tube 43 absorbs heat of vaporization, become gaseous state by liquid state, the heat absorption working medium of gaseous state enters compressor 31 from the sender property outlet of evaporation inner tube 43, compressor 31 compresses the heat absorption Working medium gas of gaseous state, then the high-temperature gas heat absorption working medium after compression is passed into and in condenser pipe 32, carry out condensation, thereby make condensed heat absorption working medium by gaseous state liquefy, then liquid heat absorption working medium being flow to choke valve 5 reduces pressure, accelerate, enter the working medium import of evaporation inner tube 43, continue the transformer oil in cooling pipe 45 to absorb heat, cooling.
Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the utility model protection.