CN203536155U

CN203536155U - Oil-immersed transformer with guide tube heat dissipation function

Info

Publication number: CN203536155U
Application number: CN201320583359.7U
Authority: CN
Inventors: 苗国君; 刘志杰
Original assignee: SHANDONG HUIHUANG ELECTRONIC TRANSFORMER CO Ltd
Current assignee: SHANDONG HUIHUANG ELECTRONIC TRANSFORMER CO Ltd
Priority date: 2013-09-22
Filing date: 2013-09-22
Publication date: 2014-04-09
Anticipated expiration: 2023-09-22

Abstract

The utility model relates to an oil-immersed transformer with the guide tube heat dissipation function. The oil-immersed transformer comprises a box, wherein a winding and an iron core are installed in the box, and a high-voltage wiring terminal and a low-voltage wiring terminal are installed on the box. The oil-immersed transformer is characterized in that a heat dissipation device is installed on the box and comprises a guide tube, wherein one end of the guide tube is inserted inside the iron core, the other end of the guide tube extends out of the box, a plurality of cooling fins are arranged at the tail end of the other end of the guide tube, and the guide tube and the cooling fins are filled with cooling fluid. The heat dissipation device replaces an ordinary heat dissipation device, a large number of raw materials are saved, the size of the oil-immersed transformer is reduced, electricity and civil engineering investment matched with the oil-immersed transformer is lowered, and the manufacturing cost and operation cost of the oil-immersed transformer are largely lowered.

Description

Conduit heat radiation oil-filled transformer

(1) technical field

The utility model relates to a kind of transformer, particularly a kind of conduit heat radiation oil-filled transformer.

(2) background technology

At present, oil-filled transformer is widely used, and transformer can produce heat when work, transformer temperature is raise, and under same load condition, transformer temperature is higher, it self energy consumption is just larger, in the life-span that simultaneously can reduce transformer, therefore must carry out cooling to transformer.

The type of cooling of oil-filled transformer mainly contains oil, oil forced oil and follows cooling etc.Wherein the type of cooling of forced oil-circulation is only applicable to 220KV and above oversize transformer, and range of application is not extensive, and cooling cost is high, installs complicated easy break-down; The type of cooling of oil, cooling device is relatively simple, but the confidential consumption electric energy of cooling air, and blower fan can not long time continuous working, and blower fan repair and replacement trouble, affects transformer work; The type of cooling of oil is the simplest, apply also the most extensive, but this type of cooling radiating effect is poor, can only improve heat-sinking capability by increasing radiator quantity, the weight of radiator accounts for the 25-35% of box weight, in radiator, the weight of oil accounts for the 10-15% of total weight of oil, waste resource, and cost is high.

(3) summary of the invention

The utility model is in order to make up the deficiencies in the prior art, and a kind of simple in structure, production cost is low, operating efficiency is high conduit heat radiation oil-filled transformer is provided.

The utility model is achieved by the following technical solution:

A kind of conduit heat radiation oil-filled transformer, comprise that inside is assembled with the casing of winding and iron core, casing top is provided with high-voltage connection terminal and low-voltage wiring terminal, it is characterized in that: on described casing, heat abstractor is installed, heat abstractor comprises the conduit of one end insertion core interior, the conduit other end stretches out casing and several fin is set endways, in conduit and fin, is loaded with cooling fluid.

Heat abstractor of the present utility model comprises conduit, cooling fluid and several fin, and cooling fluid is full of conduit, fin is inner, has the characteristic that heat conduction is fast, thermal conductive capacity is large, can make heat abstractor two ends temperature approach moment; Core interior is inserted in heat abstractor one end, and the other end is through casing and stretch out casing certain length, is exposed in air, and the part of stretching out casing increases several fin to increase radiating surface, from transformer center, heat is conducted fast and efficiently.

More excellent scheme of the present utility model is:

In described casing, be loaded with transformer oil, transformer oil, as dielectric and heat-conducting medium, is delivered to tank surface heat radiation by heat, plays certain booster action.

The utility model heat-transfer rate is fast, thermal conductive capacity is large, can make heat abstractor two ends temperature approach moment, transformer oil is delivered to tank surface auxiliary heat dissipation by heat simultaneously, simple in structure, cost is low, do not take electricity, non-maintaining, adopt plug-in type cooling structure, can directly from transformer center, heat be conducted fast and efficiently, can make fast transformer internal temperature and ambient temperature approach, improve greatly transformer Cooling ability, reduce transformer self energy consumption, energy-conserving and environment-protective, extend transformer useful life.

The utility model heat abstractor substitutes common radiator, saves a large amount of raw material, reduces volume of transformer, reduces electric, the civil engineering supporting with transformer and drops into, and the manufacture of transformer and operating cost all significantly reduce.

(4) accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is main TV structure schematic diagram of the present utility model;

Fig. 2 is plan structure schematic diagram of the present utility model;

Fig. 3 is left TV structure schematic diagram of the present utility model;

Fig. 4 is the schematic cross-section of A-A face shown in Fig. 3.

In figure, 1 heat abstractor, 2 high-voltage connection terminals, 3 low-voltage wiring terminals, 4 casings, 5 windings, 6 iron cores, 7 transformer oil, 8 conduits, 9 cooling fluids, 10 fin.

(5) embodiment

Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises that inside is assembled with the casing 4 of winding 5 and iron core 6, casing 4 tops are provided with high-voltage connection terminal 2 and low-voltage wiring terminal 3, on described casing 4, heat abstractor 1 is installed, heat abstractor 1 comprises the conduit 8 of insertion iron core 6 inside, one end, conduit 8 other ends stretch out casing 4 and several fin 10 are set endways, in conduit 8 and fin 10, are loaded with cooling fluid 9; In described casing 4, be loaded with transformer oil 7.

Transformer oil 7 is as dielectric and heat-conducting medium, heat is delivered to casing 4 surface radiatings, heat abstractor 1 comprises conduit 8, cooling fluid 9 and several fin 10, cooling fluid 9 is full of conduit 8 and fin 10 inside, there is heat conduction fast, the characteristic that thermal conductive capacity is large, can make heat abstractor 1 two ends temperature approach moment, iron core 5 inside are inserted in heat abstractor 1 one end, the other end is through casing 4 and stretch out casing 4 certain lengths, be exposed in air, the part of stretching out casing 4 increases several fin 10 to increase radiating surface, from transformer center, heat is quick, conduct efficiently.

Claims

1. conduit heat radiation oil-filled transformer, comprise that inside is assembled with the casing (4) of winding (5) and iron core (6), casing (4) top is provided with high-voltage connection terminal (2) and low-voltage wiring terminal (3), it is characterized in that: heat abstractor (1) is installed on described casing (4), heat abstractor (1) comprises the conduit (8) that one end insertion iron core (6) is inner, conduit (8) other end stretches out casing (4) and several fin (10) is set endways, in conduit (8) and fin (10), is loaded with cooling fluid (9).

2. conduit heat radiation oil-filled transformer according to claim 1, is characterized in that: in described casing (4), be loaded with transformer oil (7).