CN203423028U - Stainless steel plate type radiator for oil-immersed transformer - Google Patents

Abstract

The utility model provides a stainless steel plate type radiator for an oil-immersed transformer, and belongs to the technical field of transformer components. The stainless steel plate type radiator comprises an oil inlet pipe, an oil return pipe and a group of radiating fins which are parallel to one another in the longitudinal direction, are connected between the oil inlet pipe and the oil return pipe at intervals, and are used for dissipating heat of hot oil fed by the oil inlet pipe and then leading the oil to the oil return pipe. The stainless steel plate type radiator is characterized in that an air relief plug seat is arranged on a portion at one end, which is far away from an oil inlet of the oil inlet pipe, of the oil inlet pipe, an air relief plug is arranged on the air relief plug seat, at least one lifting lug is arranged in the middle of the oil inlet pipe, and the oil inlet pipe, the oil return pipe and the radiating fins are made of stainless steel materials. The stainless steel plate type radiator has the advantages that the manufacturing efficiency can be improved, and requirements on industrial large-scale production are met; the stainless steel plate type radiator is convenient to convey; air in the radiating fins can be dispersed to the external, and radiating fin cavities of the radiating fins are filled with cooling oil; and the oxidative resistance and the corrosion resistance are perfect, and the service life of the stainless steel plate type radiator can be obviously prolonged.

Description

Stainless Steel Fin Radiator for Oil-immersed Transformer

technical field

The utility model belongs to the technical field of transformer components, in particular to a stainless steel fin radiator for oil-immersed transformers.

Background technique

The aforementioned radiator refers to the oil-collecting tube radiator. As is known in the industry, in order to ensure the long-term and stable operation of the oil-immersed transformer, the two sides of the transformer body in the length direction are usually connected by flange or other similar methods. It is equipped with a chip radiator, and the radiator and the heat transfer oil inside the transformer form a circulating cooling circuit, so as to cool the iron core inside the transformer, control the temperature rise of the transformer, and ensure the normality and safety of the power supply and distribution system .

Technical information about radiators can be found in published Chinese patent documents, such as CN201084519Y (transformer fin radiator), CN201229827Y (radiator fin ladder radiator), CN201185117Y (transformer fin radiator) CN201185118Y (transformer radiator), CN201185115Y (radiator with fan base), CN201256051Y and CN101388275A (transformer heat exchanger using evaporative cooling technology), CN202394651U (transformer fin radiator), etc.

Not limited to the patented technical solutions listed above, although they have their own technical effects, they have the following disadvantages: First, the manufacture is cumbersome, because carbon steel is generally used for the heat sinks constituting the radiator, so it needs to be subjected to strict surface coating. On the one hand, the surface coating treatment affects the production capacity, on the other hand, the workers' work intensity is high and the environment is deteriorated; second, the service life is difficult to guarantee, because the radiator is placed outdoors with the transformer, and because of the extreme The frequent occurrence of severe climate, especially the probability of acid rain is increasing year by year, which affects the reasonable service life of the radiator; third, due to the lack of reasonable exhaust or deflation measures, it is used and after the transformer is assembled due to the formation of heat dissipation There is air in the heat sink cavity of the radiator, thus affecting the oil filling of the heat sink cavity; Fourth, due to the lack of parts for the lifting device to hang, it is inconvenient for the circulation, storage, transportation and installation between processes in the production process.

In view of the above prior art, it is necessary to improve it, so the applicant made a reasonable design, and formed the technical solution to be introduced below.

Contents of the invention

The task of the utility model is to provide a device that can significantly reduce the manufacturing process to meet the requirements of industrialized enlarged production, is beneficial to prolong the service life, is beneficial to drive out the air in the cooling fin cavity when filling oil, and is convenient for hoisting. Stainless steel fin radiators for oil-immersed transformers hooked to transport devices.

The task of the utility model is accomplished in this way. A stainless steel sheet radiator for an oil-immersed transformer includes an oil inlet pipe, an oil return pipe, and a group of oil inlet pipes and oil return pipes that are longitudinally parallel and spaced apart from each other and connected between the oil inlet pipe and the return pipe. A set of cooling fins between the oil pipes is used to guide the hot oil introduced from the oil inlet pipe back to the oil return pipe after heat dissipation. A venting plug seat is formed, a venting plug is arranged on the venting plug seat, and at least one lifting lug is arranged in the middle of the oil inlet pipe, and the oil inlet pipe, oil return pipe and cooling fins are all made of stainless steel become.

In a specific embodiment of the present utility model, a matching threaded hole of the venting plug is formed at the central position of the venting plug, and the threaded hole of the venting plug communicates with the oil inlet lumen of the oil inlet pipe. , the venting plug is a screw, which is threaded with the threaded hole of the venting plug.

In another specific embodiment of the present utility model, a flow-disturbing flange is formed on each heat-dissipating fin of the group of heat-dissipating fins and facing the same side at intervals, and every two of the disturbing-flow flanges form a Yes, and each two spoiler flanges form a figure-eight positional relationship with each other.

In yet another specific embodiment of the present utility model, a lifting hole is opened on the lifting lug.

In yet another specific embodiment of the present utility model, the upper, middle and lower parts of the front and rear edges of the group of cooling fins are respectively provided with reinforcements for connecting adjacent cooling fins. ribs.

In yet another specific embodiment of the present utility model, an oil inlet flange for matching with the transformer oil outlet of the oil-immersed transformer is formed at the position of the oil inlet of the oil inlet pipe. , the oil return pipe has an oil return port, and an oil return port flange is formed at the position of the oil return port for matching with the transformer oil inlet port of the oil-immersed transformer.

In a further specific embodiment of the present utility model, an oil inlet flange fixing hole is provided on the flange of the oil inlet, and an outlet hole is provided on the flange of the oil outlet. Port flange side fixing hole.

Compared with the prior art, the technical solution provided by the utility model has the following technical effects: since the oil inlet and outlet pipes and cooling fins are made of stainless steel, there is no need for cumbersome and harsh surface treatment, which can improve manufacturing efficiency and meet the requirements of industrialized enlarged production ;Because the lifting lug is set on the oil inlet pipe, it can be easily moved; because the air outlet plug seat is set on the oil inlet pipe, and the air release plug is set on the air release plug seat, so the air in the heat sink can Drive to the outside world to ensure that the cooling fin cavity of the cooling fin is filled with cooling oil; because the oil inlet and return pipes and the cooling fin have ideal resistance to oxidation and corrosion, the service life can be significantly extended.

Description of drawings

Fig. 1 is the structural diagram of the embodiment of the utility model.

Detailed ways

Referring to Fig. 1, there are shown oil inlet and return pipes 1, 2 and a group of cooling fins 3 that are longitudinally parallel to each other and spaced apart from each other and fitted between the oil inlet and return pipes 1 and 2, by which group of cooling fins 3 will be The high-temperature oil from the oil-immersed transformer introduced by the oil inlet pipe 2 is introduced into the oil return pipe 2 after heat radiation and cooling, and then led back into the oil-immersed transformer by the oil return pipe 2, and circulates like this.

On the aforementioned oil inlet pipe 1 and at one end away from the oil inlet 11 of the oil inlet pipe 1, a vent plug seat 12 is formed, that is to say, the oil inlet 11 is located at the left end of the oil inlet pipe 1 (the position shown in Figure 1) , and the air release plug seat 12 is located at the right end of the oil inlet pipe 1 (the position shown in Figure 1), and at the central position of the air release plug seat 12 is formed a threaded hole 122 for the air release plug communicating with the lumen of the oil inlet pipe 1, An air release plug 121 is screwed onto the air release plug fitting threaded hole 122 in a threaded manner and preferably with a sealing washer 1211 . A pair of lifting lugs 13 each having a lifting lug hole 131 is fixed (welded) in the middle of the oil inlet pipe 1 in the longitudinal direction. Moreover, an oil inlet flange 111 is formed at the position of the oil inlet 11 , and an oil inlet flange fixing hole 1111 is opened on the oil inlet flange 111 . The function of the oil inlet flange 111 is to connect the oil inlet pipe 1 with the transformer oil outlet of the oil-immersed transformer.

The oil after heat dissipation by a group of cooling fins 3 is led back from the oil return port 21 at the left end of the oil return pipe 2 (take the position shown in Figure 1 as an example) to the transformer oil inlet of the oil-immersed transformer, and after the oil return The position of the port 21 forms an oil return port flange 211 , and an oil return port flange fixing hole 2111 is opened on the oil return port flange 211 . The function of the flange side 211 of the oil return port is to connect the oil return pipe with the transformer oil inlet or transformer oil return port of the oil-immersed transformer.

Shown in Fig. 1, on the outer wall of the aforementioned cooling fins 3 whose quantity is not limited to the number shown in the figures, and toward the same side, a spoiler flange 31 is formed in a spaced state, and the spoiler flange 31 is configured in every two One pair, and every two spoiler flanges 31 form a figure-eight positional relationship with each other, and the heat dissipation effect can be significantly improved by the spoiler flanges 31 . Again, on the upper part, the middle part and the lower part of the edge of the front side and the rear side (taking the position state of Fig. 1 as an example) of a group of cooling fins 3, respectively, there are ribs 32 for connecting adjacent cooling fins 3. .

The aforementioned oil inlet and return pipes 1, 2 and a group of cooling fins 3 are all made of stainless steel.

In summary, the technical solution provided by the utility model overcomes the deficiencies in the prior art, completes the task of the invention, and embodies the technical effect recorded by the applicant in the above technical effect column.

Claims (6)

1. the stainless steel chip radiator that a kind of oil-filled transformer is used, comprise an oil inlet pipe (1), one oil return pipe (2) and one group each other longitudinally parallel and connect spaced reciprocally between oil inlet pipe (1) and oil return pipe (2) for the deep fat of being introduced by oil inlet pipe (1) time being caused after heat radiation to one group of fin (3) of oil return pipe (2), it is characterized in that: upper and form and have a venting obturating plug (12) at the position of one end of the oil-in away from oil inlet pipe (1) (11) at described oil inlet pipe (1), on this venting obturating plug (12), be equipped with an air relief cock (121), and at the middle part of oil inlet pipe (1), be provided with at least one hanger (13), described oil inlet pipe (1), oil return pipe (2) and fin (3) are made by stainless steel material, on each fin of described one group of fin (3) and towards the same side, with interval state, form and have flow-disturbing flange (31), flow-disturbing flange (31) matches with every two, and form each other splay position relationship between every two flow-disturbing flanges (31).

2. the stainless steel chip radiator that oil-filled transformer according to claim 1 is used, it is characterized in that there is air relief cock mate with threaded holes (122) in the middle position formation of described air relief cock (12), this air relief cock mate with threaded holes (122) communicates with the oil-feed tube chamber of described oil inlet pipe (1), described air relief cock (121) is screw, with described air relief cock mate with threaded holes (122) threaded engagement.

3. the stainless steel chip radiator that oil-filled transformer according to claim 1 is used, is characterized in that offering hanger hole (131) on described hanger (13).

4. the stainless steel chip radiator that oil-filled transformer according to claim 1 is used, is characterized in that being respectively provided with in the upper, middle and lower of the described front side of one group of fin (3) and the edge of rear side the reinforcement (32) for each adjacent fin (3) is implemented to link.

5. the stainless steel chip radiator that oil-filled transformer according to claim 1 is used, it is characterized in that forming and having an oil-in flange (111) connecting for the transformer oil-out with oil-filled transformer at the position of the described oil-in (11) of described oil inlet pipe (11), described oil return pipe (2) has an oil return opening (21), at the position of this oil return opening (21), forms and has an oil return opening flange (211) connecting for the transformer oil-in with oil-filled transformer.

6. the stainless steel chip radiator that oil-filled transformer according to claim 5 is used, it is characterized in that offering oil-in flange fixing hole (1111) on described oil-in flange (111), on described oil-out flange (211), offer oil-out flange fixing hole (2111).

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