CN202695065U - Sheet type radiator with spoilers for transformer - Google Patents

Abstract

The utility model relates to a sheet type radiator with spoilers for a transformer, belonging to the technical field of transformer accessories. The sheet type radiator comprises an oil inlet pipe, an oil return pipe and a group of radiator sheets, each radiator sheet is provided with a group of longitudinal baffles which are arranged at intervals mutually, a group of radiating oil passages are formed between adjacent longitudinal baffles, and each radiating oil passage is communicated with the oil inlet pipe and the oil return pipe. The radiator is characterized in that a group of spoilers are arranged at intervals on the surface of one group of the longitudinal baffles and along the height direction of the longitudinal baffle on the same side of each radiating sheet in one group of the radiating sheets, and every two adjacent longitudinal baffles are taken as a combination to enable the spoilers arranged on the two adjacent longitudinal baffles to form a corresponding relationship. The sheet type radiator has the advantages that thermal resistance can be remarkably reduced, the heat transmission coefficient is enlarged, so that a function of strengthening heat transmission is realized; resources are saved, and a space limitation in assembly and use is avoided; and the usage requirement of the transformer with a continuously enlarging power is met, and the service life of the transformer is guaranteed.

Description

Fin type heat radiator for transformer with spoiler

Technical field

The utility model belongs to transformer accessory technical field, is specifically related to a kind of fin type heat radiator for transformer with spoiler

Background technology

Aforesaid transformer refers to oil-filled transformer, and aforesaid radiator refers to the oil-collecting tubular radiator, as is known in the industry, in order to ensure that transformer is able to normally move chronically, therefore in the both sides of the length direction of transformer usually by means of flange connection or other similar connected mode equipped with radiator, the conduction oil of radiator and transformer inside forms circulation cooling circuit, use the effect of the iron core of transformer being implemented cooling of playing, the temperature rise of control transformer ensures the normalcy and safety for distribution.

Technical information about radiator can be seen in published Chinese patent literature in a large number, slightly with exemplify such as the CN201084519Y(transformer gilled radiator), the CN201229827Y(stair type heat radiator of heat radiating fins), the gilled radiator used of CN201185117Y(transformer), the radiator of CN201185118Y(transformer), CN201185115Y(has the radiator of fan seat) and CN201256051Y and CN101388275A(adopt the transformer heat exchanger of evaporation cooling technique), etc.

By the patented technology content that is not limited to exemplify above as can be known, the radiator that transformer is used has following identical technical characterictic: an oil inlet pipe, an oil return pipe and be configured in the fin that causes oil return pipe after be used between, the oil return pipe being dispelled the heat by the deep fat that oil inlet pipe is introduced.More particularly, oil inlet pipe is positioned at one group of not only in a certain distance apart from one another but also mutual vertical top of parallel fin, and (also claim heat radiation oil duct with the fin chamber of one group of fin, as follows) communicate, and oil return pipe is positioned at the bottom of one group of fin, and communicates with the fin chamber of one group of fin equally.During use, oil inlet pipe is connected with the transformer oil-out of oil-filled transformer, and the transformer oil-in of oil return pipe and oil-filled transformer is connected.As seen, because radiator is the aggregate of fin, so the radiating effect of radiator is the radiating effect of fin after all, because only have fin to possess gratifying radiating effect, the integral heat sink effect of radiator embodied.

In published Chinese patent literature, can be seen in the technology contents of the fin of transformer radiator, " fin of transformer gilled radiator " typically recommended such as CN201185119Y, it is that the both sides, upper end with the anter of fin and rear panel are shoulder and namely are similarly shoulder in the both sides, lower end of anter and rear panel and respectively consist of the orthodrome structure, the positive effect of scheme be to reduce to dispel the heat oil flow flow resistance and can save for before the processing, the material of rear panel, the flow resistance of heat radiation oil reduces to promote the flow effect of fluid, helps to a certain extent to improve radiating effect.CN201199475Y " energy-saving isothermal radiating fin of transformer radiator " that provide and for example, it is the upper end that the upper end of one group of barrier is leant out the thermal dispersion oil cavity of fin, and be stretched in minute oil pocket, a minute oil pocket is separated into the Fen You district that equates with thermal dispersion oil cavity quantity; With example, the lower end of one group of barrier is leant out the lower end of thermal dispersion oil cavity, and be stretched in the remittance oil pocket, the remittance oil pocket is separated into the remittance oil district that equates with thermal dispersion oil cavity quantity.The volume that the achievement of this structure is to avoid oily short circuit occurring and can suitably dwindling fin is to embody energy-conservation and material-saving.In addition, owing to can avoid oily short circuit, therefore also can improve radiating effect to a certain extent.But these two patents are not remarkable to the raising of radiating effect.

In recent years, along with the continuous increase of transformer efficiency, the also corresponding increase of heat that the iron core of transformer produces, thus cause the transformer oil temperature rise, if therefore the radiating effect of radiator does not reach gratifying degree, can have a strong impact on so the useful life of transformer and even burn transformer.Generally, the every rising 6K of temperature, the life-span of oil-filled transformer winding insulation material then can reduce by half.Owing to improve the overall heat-transfer coefficient of radiator, improve radiating efficiency and save the manufacturing cost of transformer and prolong between useful life of transformer close causality is arranged, although this has been caused showing great attention to of industry and energetically exploration, in published China and foreign countries patent and non-patent literature, has been showed no all referential technology enlightenments up to now.Present situation can only be helplessly with the quantity that increases fin with increase the transformer of the volume reply the increase of output power of radiator, thereby caused to a great extent the wasting of resources, and impact and the restriction of installing space when being subject to use.

In view of above-mentioned prior art, the applicant has carried out lasting research and trial, has finally formed technical scheme described below

Summary of the invention

Task of the present utility model is to provide a kind of and helps to promote the augmentation of heat transfer effect and use and reduce thermal resistance and enhancing heat transfer, be conducive to avoid increasing volume and exchange area of dissipation for and use and economize on resources and rationally save the space hold when installing and be of value to the transformer that constantly increases with power adaptive and use the fin type heat radiator for transformer with spoiler in the useful life that ensures transformer.

Task of the present utility model is finished like this, a kind of fin type heat radiator for transformer with spoiler, comprise an oil inlet pipe, one oil return pipe and one group are vertically parallel and connect spaced reciprocally each other, being used between the oil return pipe will be caused by the deep fat that oil inlet pipe is introduced the fin of oil return pipe after heat radiation, each fin has one group of vertical barrier of each interval, consist of between adjacent vertical barrier one group of heat radiation oil duct is arranged, each heat radiation oil duct communicates with described oil inlet pipe and with described oil return pipe, be characterised in that: described one group of vertical barrier the surface and be arranged in described one group of fin each fin the same side along the longitudinal the short transverse of barrier be provided with one group of spoiler with the interval state, wherein; Per two adjacent vertical barriers make as a combination and are arranged at these two spoilers on adjacent vertical barrier and form each other corresponding relation.

In a specific embodiment of the present utility model, article two, the spoiler on adjacent described vertical barrier tilts, wherein: when one group of spoiler on the wherein vertical barrier in two adjacent vertical barriers is tilted to the right, the skew back left of one group of spoiler on another vertical barrier then.

In another specific embodiment of the present utility model, the spacing distance that is arranged between the described one group of spoiler on the vertical barrier of described same is 5-30 ㎝.

In another specific embodiment of the present utility model, the width of described spoiler is to equate with the width of described vertical barrier, and the length of spoiler is less than the spacing distance between the adjacent described fin.

In another specific embodiment of the present utility model, the angle of inclination of described spoiler is 30-45 °.

The technical scheme that the utility model provides is owing to respectively be provided with the spoiler that forms each other corresponding relation on the surface of vertical barrier of the same side of one group of fin and with two adjacent vertical barriers as a combination, thereby when thermal air current during through spoiler, hot-air is obstructed by spoiler, make hot-air walk around spoiler and form whirlpool at the upside of spoiler, destroy the thermal boundary layer of spoiler upside, thereby can reduce significantly thermal resistance, enhancing heat transfer plays the effect of augmentation of heat transfer; Played the effect that reduces thermal resistance and enhancing heat transfer owing to the setting of spoiler, therefore need not to resemble and exchange area of dissipation for the overall volume that increases radiator the prior art, both can economize on resources, can avoid when installing and using, being subject to again the restriction in space; Improve more than 15% owing to the setting of spoiler makes the integral heat sink efficient of radiator, therefore can tackle the instructions for use of the transformer that power constantly increases and use the useful life of guaranteeing transformer.

Description of drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is the schematic diagram of fin shown in Figure 1.

Embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the utility model scheme to the description of embodiment, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Embodiment 1:

See also Fig. 1 and Fig. 2, Fig. 1 has illustrated the stereochemical structure with fin type heat radiator for transformer of spoiler of the present utility model, comprise that an oil inlet pipe 1, an oil return pipe 2 and one group of quantity are not subject to each other not only vertical one group of fin 3 of parallel but also space of restricted number shown in Figure 1, this group fin 3 connect advance, between the oil return pipe 1,2, its effect is will be drawn to be back to namely to return after heat radiation by the deep fat (coming from oil-filled transformer) that oil inlet pipe 1 is introduced to cause oil return pipe 2, by oil return pipe 2 introducing oil-filled transformers.

By shown in Figure 2, each fin 3 has vertical barrier 31 of one group of each interval, consist of the heat radiation oil duct 32 that one group of each interval is arranged between adjacent vertical barrier 31, each heat radiation oil duct 32 communicates with oil inlet pipe 1, and communicate with oil return pipe 2, the high temperature oil that comes from oil inlet pipe 1 causes oil return pipe 2 after heat radiation.That is to say, heat radiation oil duct 32 be connect, oil return pipe 1,2 passage, can see the patent specification of the CN201199475Y that mentions in the superincumbent background technology of the applicant hurdle for details to this.

The technical essential of the technical scheme that provides as the utility model: on the surface of aforesaid one group of vertical barrier 31 and be arranged in one group of fin 3 each fin 3 the same side along the longitudinal the short transverse of barrier 31 be arranged at intervals with one group of spoiler 4 with 20 ㎝.By shown in Figure 1, per two adjacent vertical barriers 31 are as a combination, make to be arranged at these two spoilers 4 on adjacent vertical barrier 31 and to form each other just as splay corresponding relation.

In the present embodiment, vertically the quantity of barrier 31 is five altogether, so outside the vertical barrier 31 in the middle of removing, that is to say except a vertical barrier 31 placed in the middle is not arranged the spoiler 4, each two vertical barriers 31 on left side and right side arrange spoiler 4, so four vertical barriers 31 of present embodiment consist of two combinations, each is combined as two vertical barriers 31.Certainly, if the width of fin 3 increases and the quantity of vertical barrier 31 increases to more than 5, so also corresponding increase of the group number of spoiler 4, for example when the quantity of vertical barrier 31 is 6, it can be divided into three combinations so, each is combined as two, and the spoiler 4 that corresponds to each other and quantity equates is set in each two left, that neutralization is right adjacent vertical barriers 31.The set-up mode of spoiler 4 preferably uses welding.

By illustrated in figures 1 and 2, being arranged at two spoilers 4 on the adjacent vertical barrier 31 that namely constitutes a combination tilts, and the spoiler 4 on the vertical barrier 31 on the left of being positioned at is tilted to the right, and the spoiler 4 that is positioned on vertical barrier 31 on right side is tilted to the left, thereby formed the splay corresponding relation that the applicant mentions in the above, the angle of inclination of spoiler 4 is 45 °.

The width of spoiler 4 preferably adapts or claims with the width that vertically stops 31 and equates, and the length of spoiler 4 should be less than the spacing distance between the adjacent fin 3, for example be between the adjacent fin 3 spacing distance 3/5ths, 4/5ths or 1/2nd.

Spoiler 4 has the effect of augmentation of heat transfer, particularly, and when air flows through fin, air is stopped by spoiler, forms the air-flow whirlpool at spoiler 4 when making air-flow walk around spoiler 4, and the thermal boundary layer of spoiler 4 upsides is destroyed, thermal resistance diminishes, and thermal transmission coefficient increases.Here the augmentation of heat transfer of mentioning refers to when two side flow at a certain heat-transfer area of high temperature fluid and cryogen, the heat-shift Q of two fluids in the unit interval is increased, and then (in the formula: K is thermal transmission coefficient can to obtain deciphering by Q=KF △ T, F is heat exchange area, △ T is the mean temperature difference of hot fluid and cold fluid), improve heat exchange coefficient K, can improve the heat exchange coefficient of runner both sides, especially the heat exchange coefficient of the relatively poor side of heat exchange in the both sides, thus preferably augmentation of heat transfer effect can be obtained.Carried out contrast test through the applicant under secrecy provision and in the applicant plant area, spoiler 4 rear radiating efficiencys are set can be improved more than 15%.

Embodiment 2:

Figure omits, and only the angle of inclination with one group of spoiler 4 changes 30 ° into, changes the spacing distance between one group of spoiler 4 on the vertical barrier 31 of same into 30 ㎝, and all the other are all with the description to embodiment 1.

Embodiment 3:

Figure omits, and only the angle of inclination with one group of spoiler 4 changes 40 ° into, changes the spacing distance between one group of spoiler 4 on the vertical barrier 31 of same into 5 ㎝, and all the other are all with the description to embodiment 1

Claims (5)

1. A kind of fin type heat radiator for transformer with spoiler, comprise an oil inlet pipe (1), one oil return pipe (2) and one group are vertically parallel and connect spaced reciprocally each other, oil return pipe (1, being used for 2) will be caused by the deep fat that oil inlet pipe (1) is introduced the fin (3) of oil return pipe (2) after heat radiation, each fin (3) has one group of vertical barrier (31) of each interval, consist of between adjacent vertical barrier (31) one group of heat radiation oil duct (32) is arranged, each heat radiation oil duct (32) communicates with described oil inlet pipe (1) and with described oil return pipe, it is characterized in that: on the surface of described one group of vertical barrier (31) and be arranged in described one group of fin (3) each fin (3) the same side along the longitudinal the short transverse of barrier (31) be provided with one group of spoiler (4) with the interval state, wherein: per two adjacent vertical barriers (31) make as a combination and are arranged at these two spoilers (4) on adjacent vertical barrier (31) and form each other corresponding relation.

2. Fin type heat radiator for transformer with spoiler according to claim 1, it is characterized in that two spoilers (4) on adjacent described vertical barrier (31) tilt, wherein: the one group of spoiler (4) on the wherein vertical barrier (31) in two adjacent vertical barriers (31) is when being tilted to the right, then the skew back left of the one group of spoiler (4) on another vertical barrier (31).

3. Fin type heat radiator for transformer with spoiler according to claim 1 and 2, the spacing distance that it is characterized in that being arranged between the described one group of spoiler (4) on the vertical barrier of described same (31) is 5-30 ㎝.

4. Fin type heat radiator for transformer with spoiler according to claim 1, the width that it is characterized in that described spoiler (4) is to equate with the width of described vertical barrier (31), and the length of spoiler (4) is less than the spacing distance between the adjacent described fin (3).

5. Fin type heat radiator for transformer with spoiler according to claim 1, the angle of inclination that it is characterized in that described spoiler (4) is 30-45 °

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