CN201488591U

CN201488591U - Forced-oil circulation air cooler

Info

Publication number: CN201488591U
Application number: CN2009201909209U
Authority: CN
Inventors: 朱国华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-05-26
Anticipated expiration: 2019-08-06

Abstract

The utility model relates to a forced-oil circulation air cooler, which comprises a casing and fans, and is characterized in that a plurality of rows of radiating pipes are arranged inside the casing, each fan is arranged on one side of each radiating pipe, two sides of each radiating pipe are fixed onto the casing via radiating pipe pattern plates, partition plates perpendicular to the radiating pipe pattern plates are arranged in spaces on one side of each radiating pipe pattern plate and the casing, each space is divided into an oil inlet chamber and an oil outlet chamber by the partition plates, the oil inlet chamber is connected with an oil inlet, and the oil outlet chamber is connected with an oil outlet. The cooler has the advantages of high radiating efficiency, capability of avoiding negative pressure of the forced-oil circulation air cooler and increasing work stability of a transformer and the like.

Description

Forced oil-circulated air-cooled is device but

Technical field

The utility model relates to a kind of but device of forced oil-circulated air-cooled that high-power transformer uses that is applied to.

Background technology

At present, to the transformer oil of the heat-carrying of transformer 109 by forced oil-circulated air-cooled but device lower the temperature and be transmitted back in the transformer 109 and recycle.As shown in Figure 1, but cooler oil-in 101, upper chamber 102, the wind that forces that enters into heat radiator body 104 and cooling fan 103 of device produce heat exchange to transformer oil by forced oil-circulated air-cooled, cooling back oil returns transformer body 109 through lower oil chamber 105, cooler oil-out 106, force (forcing) pump 107 pressurizations by oil flow relay 108, finishes the heat exchange and the cyclic process of transformer oil.Its main defective is: 1, be made up of many radiating tubes owing to heat radiator body 104, for example model YF-250 forced oil-circulated air-cooled but device form by the radiating tube of 146 internal diameters 17, its total flow area is 4.2 times into and out of hydraulic fluid port, and all occupy the place, center, upper and lower grease chamber of cooler into and out of hydraulic fluid port, produce the radiating tube no-load stream of hot oil mistake on cooler both sides, local radiating tube does not participate in or seldom participates in heat radiation, so radiating efficiency is not good.2, oil pump is contained in the exit of cooler, and whole cooler is in negative pressure state, if cooler has slight seepage, will produce the action of light transformer Buchholz relay, influence the work of transformer, and breakthrough is difficult for finding.

The utility model content

Technical problem to be solved in the utility model is the defective that overcomes prior art, and a kind of radiating efficiency height is provided, can avoid forced oil-circulated air-cooled but device be in negative pressure state, improve the but device of forced oil-circulated air-cooled of the job stability etc. of transformer.

For solving the problems of the technologies described above, the utility model provides but device of a kind of forced oil-circulated air-cooled, comprise housing, fan, in described housing, be provided with many row's radiating tubes, described fan is located at a side of described radiating tube, the both sides of described radiating tube are fixed on the described housing by the radiating tube card, vertical radiating tube card is provided with dividing plate in the space of described radiating tube card and described housing one side, described space is separated into inlet space and goes out the grease chamber, described inlet space is connected with oil-in, describedly goes out the grease chamber and is connected with oil-out.

In the utility model, the described oil-in outside is connected with oil inlet pipe, on described oil inlet pipe oil pump is installed.

In the utility model, the described oil-out outside is connected with flowline, and an end of described flowline is connected to transformer.

Because the utility model adopts technique scheme, therefore have following beneficial effect:

1, cooling effectiveness improves, and because of the heat radiator body pipe makes two flow processs into, its total flow area is original 1/2, avoid the radiating tube no-load stream of hot oil on both sides to cross phenomenon, and the length of heat dissipation channel is original 2 times, and forces the reverse exchange of cooling air, improves cooling effectiveness.Through test, same transformer, same cooler improve 20% through improved cooling effectiveness

2, oil pump is retrofitted to the import of cooler, and cooler is in barotropic state, reduces the chance of light transformer Buchholz relay action, improves the safe running performance of transformer.After oil is flowed through the subcooler buffering after the oil pump pressurization, reduce the scouring force to transformer, the magnetic field of favourable transformer is constant.

Description of drawings

Fig. 1 is the prior art constructions schematic diagram;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is that the A-A of Fig. 2 is to cutaway view.

Mark the following drawings mark thereon in conjunction with the accompanying drawings:

The 1-housing; The 2-fan; The 3-radiating tube; 4-radiating tube card; Grease chamber in the middle of the 5-top;

The 6-inlet space; 7-goes out the grease chamber; The 8-dividing plate; The 9-oil-out; The 10-oil-in; The 11-oil pump;

The 12-oil flow relay; The 13-transformer.

The specific embodiment

As Fig. 2, shown in Figure 3, the utility model forced oil-circulated air-cooled is device but, comprise housing 1 and fan 2, in housing 1, be provided with many row's radiating tubes 3, the both sides of radiating tube 3 are fixed on the housing 1 by radiating tube card 4, and vertical radiating tube card 4 is provided with dividing plate 8 in the space of radiating tube card 4 and housing 1 one sides, dividing plate 8 with radiating tube card 4, divide the space into the inlet space 6 of sealing and go out grease chamber 7, wherein inlet space 6 is connected with oil-in 10, goes out grease chamber 7 and is connected with oil-out 9.

Oil-in 10 outsides are connected with oil inlet pipe, and oil flow relay 12, oil pump 11 are installed on oil inlet pipe, and the other end of oil inlet pipe is connected with the oil-out of transformer 13.Oil-out 9 outsides are connected with flowline, and the other end of flowline is connected to transformer 13.

In use, its knot flow process is as follows, transformer 13 produces the heat medium oil of heat after oil inlet pipe is by oil flow relay 12, oil pump 11 pressurizations, pass through the last flow process part 3 of radiating tube by oil-in 10, inlet space 6, in the middle of the top grease chamber 5 the more following flow process part 4 by radiating tube, go out to flow chamber 7 and oil-out 9, get back to transformer body 13 through flowline.

The utlity model has following advantage:

1, cooling effectiveness improves, and because of the heat radiator body pipe makes two flow processs into, its overall channel is original 1/2, avoids the radiating tube no-load stream of hot oil on both sides to cross phenomenon, and the length of heat dissipation channel is original 2 times, with the reverse exchange of wind, improves cooling effectiveness.Through test, same transformer, same cooler improve 20% through improved cooling suburb rate

It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.

Claims

1. but device of a forced oil-circulated air-cooled, comprise housing, fan, in described housing, be provided with many row's radiating tubes, described fan is located at a side of described radiating tube, it is characterized in that: the both sides of described radiating tube are fixed on the described housing by the radiating tube card, vertical radiating tube card is provided with dividing plate in the space of described radiating tube card and described housing one side, described space is separated into inlet space and goes out the grease chamber, described inlet space is connected with oil-in, describedly goes out the grease chamber and is connected with oil-out.

2. forced oil-circulated air-cooled according to claim 1 is device but, it is characterized in that: the described oil-in outside is connected with oil inlet pipe, on described oil inlet pipe oil pump is installed.

3. forced oil-circulated air-cooled according to claim 2 is device but, it is characterized in that: the described oil-out outside is connected with flowline, and an end of described flowline is connected to transformer.