CN206558315U

CN206558315U - Transformer heat-exchange system

Info

Publication number: CN206558315U
Application number: CN201720268283.7U
Authority: CN
Inventors: 聂振华
Original assignee: SHIJIAZHUANG TIANTAI POWER TRANSFORMER Co Ltd
Current assignee: SHIJIAZHUANG TIANTAI POWER TRANSFORMER Co Ltd
Priority date: 2017-03-20
Filing date: 2017-03-20
Publication date: 2017-10-13
Anticipated expiration: 2027-03-20

Abstract

The utility model discloses a kind of transformer heat-exchange system, the oil duct of closing is set in the iron core of transformer, the oil duct set on iron core is connected by pipeline with two hydraulic fluid ports of the first heat-exchanger rig heat exchanging chamber, first circulation oil pump is installed in the middle part of pipeline, two hydraulic fluid ports of the second heat-exchanger rig heat exchanging chamber connect supporting installation second circulation oil pump on conservator and transformer shell, oil pipe by oil pipe respectively；By setting single oil duct in iron core, with oil duct the first heat-exchanger rig of supporting setting, the temperature of cooling oil in oil duct is reduced by heat transferring medium, and then reduce the temperature inside iron core, the second heat-exchanger rig that the transformer oil in conservator and iron core is circulated can be made with conservator and the supporting setting of housing simultaneously, the temperature of transformer oil can be effectively reduced, further the operating temperature of reduction winding and core profile, it is ensured that the electrical property of transformer.

Description

Transformer heat-exchange system

Technical field

The utility model is related to transformer technology field, more particularly to a kind of transformer heat-exchange system.

Background technology

Oil-immersed type transformer is the novel high-performance transformer of a kind of more reasonable structure, more excellent performance, its three dimensional wound core Because its three stems are that the three-dimensional of equilateral triangle arranges, without air-gap in its magnetic circuit, closer, three lengths of magnetic path are wound Unanimously, and all most short, the cross-sectional area of iron core column is further improved closer to circle, therefore performance, loss reduction, noise Reduction, three balances, reduces third-harmonic component, and the product is more suitable for town and country, industrial and mining enterprises' electric network reconstruction, is more suitable for group Box-like transformer and preassembled transformer station transformer.

Oil-immersed type transformer is main by groups such as iron core, winding, fuel tank, conservator, insulating sleeve, shunting switch and gas relays Into iron core is the magnetic circuit part of transformer, to produce magnetic hystersis loss and eddy-current loss during operation and generate heat, for reduction heating loss With reduce volume and weight, iron core is constituted using the high cold rolled grain grain-oriented Si steel sheet of 0.35mm magnetic capacity is less than, winding and Iron core is all the core parts of transformer, because winding has resistance or joint to have contact resistance in itself, from Joule's law, Winding will produce heat in the process of running, to eliminate the influence of winding and the heat unshakable in one's determination produced to transformer electrical property, oil Transformer oil is filled in the housing of immersion transformer, corrugated fin is set in housing sidewall, is cooled down by air-cooled mode Transformer oil, is taken away the heat of unshakable in one's determination and winding by transformer oil, it is ensured that the normal work of transformer, however, with change Set the radiating mode of corrugated fin to meet the radiating requirements of transformer oil on the increase of depressor power, housing, be This, exploitation design is a kind of can to realize the transformer of actively heat exchange, be this area urgent problem.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of transformer heat-exchange system, by being set in iron core Single oil duct, with oil duct the first heat-exchanger rig of supporting setting, the temperature of cooling oil in oil duct is reduced by heat transferring medium, and then Temperature inside reduction iron core, while the transformer oil recycle stream in conservator and iron core can be made with conservator and the supporting setting of housing The second dynamic heat-exchanger rig, can effectively reduce the temperature of transformer oil, further the work temperature of reduction winding and core profile Degree, it is ensured that the electrical property of transformer.

In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of transformer heat-exchange system, bag Include and set in the first heat-exchanger rig, first circulation oil pump, the second heat-exchanger rig and second circulation oil pump, the iron core of the transformer The oil duct set on the oil duct of closing, iron core is connected by pipeline with two hydraulic fluid ports of the first heat-exchanger rig heat exchanging chamber, in pipeline First circulation oil pump is installed in portion, and two hydraulic fluid ports of the second heat-exchanger rig heat exchanging chamber connect conservator and transformation by oil pipe respectively Supporting installation second circulation oil pump on device housing, the oil pipe, first circulation oil pump is used to make cooling oil in the first heat-exchanger rig Circulated between oil duct on heat exchanging chamber and iron core, second circulation oil pump is used to make the transformer in transformer shell and conservator Oil is flowed by the second heat-exchanger rig heat exchanging chamber Posterior circle.

First heat-exchanger rig and the second heat-exchanger rig structure are identical, described cold including heat exchanging chamber and cooling coil But coil pipe is located in heat exchanging chamber, and heat exchanging chamber is set in two hydraulic fluid ports, cooling coil full of the cooling medium circulated.

It is using the beneficial effect produced by above-mentioned technical proposal：By setting single oil duct in iron core, with oil Road is supporting to set the first heat-exchanger rig, the temperature of cooling oil in oil duct is reduced by heat transferring medium, and then reduce inside iron core Temperature, while the second heat exchange that with conservator and housing supporting setting transformer oil in conservator and iron core can circulate is filled Put, can effectively reduce the temperature of transformer oil, further the operating temperature of reduction winding and core profile, it is ensured that transformer Electrical property；Still further aspect, the heat-exchanger rig that the utility model is used is passed through in cooling coil and circulated for heat exchanger Cooling medium, cooling medium can absorb the heat of cooling oil and transformer oil during circulating, absorb heat Cooling medium can supply heater, and heat is made full use of, and reduce energy loss.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Wherein：1st, the first heat-exchanger rig；2nd, pipeline；3rd, cooling-oil outlet；4th, housing, 5, iron core；6th, oil duct；7th, winding； 8th, oil-in is cooled down；9th, first circulation oil pump；10th, conservator；11st, the second heat-exchanger rig.

Embodiment

With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clear Chu, it is fully described by, it is clear that 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 skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new Type can also be different from other manner described here using other implement, and those skilled in the art can be without prejudice to this reality With doing similar popularization in the case of new intension, therefore the utility model is not limited by following public specific embodiment.

As shown in figure 1, the utility model discloses a kind of transformer heat-exchange system, including the first heat-exchanger rig 1, first follow The oil duct 6 of closing, iron core 5 are set in ring oil pump 9, the second heat-exchanger rig 11 and second circulation oil pump, the iron core 5 of the transformer The oil duct 6 of upper setting is connected by pipeline 2 with two hydraulic fluid ports of the heat exchanging chamber of the first heat-exchanger rig 1, and the middle part of pipeline 2 is installed first and followed Ring oil pump 9, two hydraulic fluid ports of the heat exchanging chamber of the second heat-exchanger rig 11 connect conservator 10 and transformer shell by oil pipe respectively 4, supporting installation second circulation oil pump on the oil pipe, first circulation oil pump 9 is used to make cooling oil exchange heat in the first heat-exchanger rig 1 Circulated between oil duct 6 on chamber and iron core 5, second circulation oil pump is used to make the transformation in transformer shell 4 and conservator 10 Device oil is flowed by the heat exchanging chamber Posterior circle of the second heat-exchanger rig 11.

First heat-exchanger rig 1 is identical with the structure of the second heat-exchanger rig 11, described including heat exchanging chamber and cooling coil Cooling coil is located in heat exchanging chamber, and heat exchanging chamber is set in two hydraulic fluid ports, cooling coil full of the cooling medium circulated.

During concrete application, the utility model in iron core by setting single oil duct, with the supporting setting of oil duct First heat-exchanger rig, the temperature inside the temperature of cooling oil in oil duct, and then reduction iron core is reduced by heat transferring medium, while with Conservator and the supporting setting of housing can make the second heat-exchanger rig that the transformer oil in conservator and iron core is circulated, can be effective Reduce the operating temperature of the temperature of transformer oil, further reduction winding and core profile, it is ensured that the electrical property of transformer；In addition On the one hand, the heat-exchanger rig that the utility model is used is passed through the cooling medium circulated for heat exchanger in cooling coil, Cooling medium can absorb the heat of cooling oil and transformer oil during circulating, and the cooling medium for absorbing heat can be with Heater is supplied, heat is made full use of, energy loss is reduced.

Claims

1. a kind of transformer heat-exchange system, it is characterised in that：Including the first heat-exchanger rig（1）, first circulation oil pump（9）, second Heat-exchanger rig（11）With second circulation oil pump, the iron core of the transformer（5）It is interior that the oil duct closed is set（6）, it is unshakable in one's determination（5）On set The oil duct put（6）Pass through pipeline（2）With the first heat-exchanger rig（1）Two hydraulic fluid ports connection of heat exchanging chamber, pipeline（2）Install the in middle part One oil circulating pump（9）, second heat-exchanger rig（11）Two hydraulic fluid ports of heat exchanging chamber connect conservator by oil pipe respectively（10）With Transformer shell（4）, supporting installation second circulation oil pump, first circulation oil pump on the oil pipe（9）For making cooling oil One heat-exchanger rig（1）Heat exchanging chamber and iron core（5）On oil duct（6）Between circulate, second circulation oil pump be used for make transformer Housing（4）And conservator（10）Interior transformer oil passes through the second heat-exchanger rig（11）Heat exchanging chamber Posterior circle flows.

2. transformer heat-exchange system according to claim 1, it is characterised in that：First heat-exchanger rig（1）With second Heat-exchanger rig（11）Structure is identical, including heat exchanging chamber and cooling coil, and the cooling coil is located in heat exchanging chamber, and heat exchanging chamber is set Put in two hydraulic fluid ports, cooling coil full of the cooling medium circulated.