CN105047374B

CN105047374B - Helical tube cycle cooling transformer

Info

Publication number: CN105047374B
Application number: CN201510526811.XA
Authority: CN
Inventors: 李金仁; 陈明德
Original assignee: CHONGQING MINSHENG TRANSFORMER Co Ltd
Current assignee: CHONGQING MINSHENG TRANSFORMER Co Ltd
Priority date: 2015-08-25
Filing date: 2015-08-25
Publication date: 2017-04-26
Anticipated expiration: 2035-08-25
Also published as: CN105047374A

Abstract

The invention discloses a helical tube cycle cooling transformer, which comprises a transformer tank, a cooling pipe and an expansion tank, wherein the expansion tank is connected to the transformer tank through a bracket; the expansion tank is higher than the position of the transformer tank; the helical tube cycle cooling transformer is characterized in that a lower groove, a middle frame and an upper cover are formed in and arranged on the expansion tank; an outer edge is arranged on the lower groove; the middle frame is a frame which are open in upper part and lower part and is surrounded by side surfaces; an extending lower edge which is flush with the outer edge is arranged at the lower part of the middle frame; an extending upper edge which is flush with the edge of the upper cover is arranged at the upper part of the middle frame; the cooling pipe is divided into an ascending pipe and a descending pipe; an upper space of the transformer tank is communicated with an internal space of the lower groove through the ascending pipe; and a lower space of the transformer tank is communicated with the internal space of the lower groove through the descending pipe. A cored winding fully works in a relatively low temperature environment, so that the work efficiency is improved.

Description

Helix tube type circulation cooling transformer

Technical field

The present invention relates to a kind of power industry equipment transformer, more particularly to a kind of helix tube type circulation cooling transformation Device.

Background technology

China is vast in territory, and power delivery networks gather, and is required to transformer in the end of network to carry out voltage turn Change.To produce heat in the transformer course of work, temperature is too high to affect the efficiency of voltage conversion, cause the increasing being lost, So the design of transformer is all paid much attention to heat dispersion, existing transformer is typically all to adopt radiating tube, and radiating tube is upper and lower Two ends respectively with the upper and lower UNICOM of oil tank of transformer inner space, constitute closed circuit, whole closed circuit is less than The height of oil tank of transformer, the transformer oil density of different temperatures is different, and the oil temperature of transformer oil is by upper in whole closed circuit Successively lower downwards, that is, upper strata temperature is higher than lower floor's temperature, and existing transformer core winding and transformer oil box cover Spacing is less, thus can still have part iron core winding to be immersed in the higher oil reservoir of temperature, affects radiating, affects work effect Rate, these still await technology solution.

The content of the invention

In order to solve the above problems, the invention provides a kind of helix tube type circulation cooling transformer.

The technical solution used in the present invention is：A kind of helix tube type circulation cooling transformer, including oil tank of transformer, radiating Pipe and conservator, conservator is connected on oil tank of transformer by support, and conservator position is higher than oil tank of transformer position, it is characterised in that Conservator is provided with lower groove, center and upper lid, and lower groove is provided with outer, and center is the frame open up and down surrounded by side, middle frame bottom The lower edge of the abduction alignd with outer is provided with, center top is provided with the upper edge of the abduction alignd with upper lid edge；Middle inframe is provided with Two sheets of flexible barrier film, two-layer isolation film edge airtight connection is simultaneously between outer and lower edge, and two-layer barrier film middle part is upwards Protuberance, upper strata barrier film protuberance amplitude is equipped with its both sides of UNICOM more than lower floor's barrier film protuberance amplitude on two-layer barrier film Resilient seal mouth；Radiating tube is divided into ascending tube and down pipe, and oil tank of transformer upper space is empty with lower groove inside by ascending tube Between UNICOM, down pipe is helix tube, and ascending tube is entered in groove by lower groove sidewall, in-position higher than lower groove depth two/ One, oil tank of transformer lower space is entered in groove by down pipe and Xia Cao inner spaces UNICOM, down pipe by lower trench bottom, under The port that row pipe is entered in groove is higher than at least one centimetre of lower trench bottom.

Further, be provided with iron core and winding in the oil tank of transformer, iron core and winding be located at fuel tank height three/ In less than two spaces.

Further, the resilient seal mouth is externally provided with hoop.

Further, the hoop is elastic force ring.

Further, the ascending tube is more than five, is connected to horizontal up house steward, and up house steward passes through up point Pipe is connected to lower groove, and up quantity of being in charge of is less than ascending tube quantity.

Further, the down pipe is more than ten, is connected to horizontal descending house steward, and descending house steward passes through descending point Pipe is connected to lower groove, and up quantity of being in charge of is less than five.

The present invention participates in radiating circulation using conservator, can thus effectively improve the height of whole closed circuit, makes Transformer core winding top has the higher bigger space for taking transformer oil in, and temperature is higher in whole closed circuit Transformer oil laminar flow upwards all the time, and transformer core winding is all the time in the lower space of transformer oil reservoir, also It is to be in all the time in the relatively low oil reservoir of oil temperature, can thus makes iron core winding sufficiently lower the temperature, is operated in a lower temperature In degree environment, improve operating efficiency, and the present invention have that the middle part for being provided with two-layer periphery airtight connection swells upwards every From film, transformer oil is sealed off, deformable surplus is big, reduce transformer oil and expand with heat and contract with cold the pressure change for causing, in pressure Transformer oil overcomes the resistance of lower floor's barrier film resilient seal mouth to enter the intermembranous space of two-layer isolation, two-layer isolation when power is too high The transformer oil in intermembranous space by upper strata barrier film not with air contact, can not only reuse but also can play seal every From effect, when two-layer isolates intermembranous space is full of transformer oil hypertonia, transformer oil overcomes upper strata barrier film elastic force The resistance of seal enters upper strata and isolates the intermembranous space with upper lid, and in this course, transformer oil is only to a direction stream It is dynamic, countercurrently functional reliability will not be further increased with the fluid of air contact, down pipe adopts helix tube, can obtain Bigger area of dissipation, increases transformer oil in the distance for saying radiating walking in pipe, improves radiating efficiency.

Description of the drawings

Fig. 1 is the overall schematic of the embodiment of the present invention one.

Fig. 2 is the conservator position cross-sectional schematic of the embodiment of the present invention one.

Fig. 3 is the overall schematic of the embodiment of the present invention two.

Reference:1 oil tank of transformer；2 supports；3 times grooves；4 centers；Cover on 5；6 outers；7 lower edges；Edge on 8；9 upper stratas Barrier film；10 lower floor's barrier films；11 resilient seal mouths；12 ascending tubes；13 down pipes；14 hoops；15 up house stewards；16 is up It is in charge of；17 descending house stewards；18 descending are in charge of.

Specific embodiment

As shown in Figure 1, 2, the helix tube type circulation cooling transformer is provided with oil tank of transformer 1, dissipates the embodiment of the present invention one Heat pipe and conservator, conservator is connected on oil tank of transformer by support 2, and conservator position is higher than oil tank of transformer position, and conservator is It is split type, lower groove 3, center 4 and upper lid 5 are provided with, lower groove is provided with outer 6, and center is the frame open up and down surrounded by side, in Frame bottom is provided with the lower edge 7 of the abduction alignd with outer, center top be provided with the abduction alignd with upper lid edge on along 8；In Inframe is provided with two sheets of flexible barrier film, two-layer isolation film edge airtight connection and between outer and lower edge, outer and lower edge Grip seal connects, and two-layer barrier film middle part is swelled upwards, and the protuberance amplitude of upper strata barrier film 9 swells width more than lower floor's barrier film 10 Degree, is equipped with the resilient seal mouth 11 of its both sides of UNICOM on two-layer barrier film, resilient seal mouth is externally provided with hoop 14；Radiating tube It is divided into ascending tube 12 and down pipe 13, oil tank of transformer upper space is by ascending tube and Xia Cao inner spaces UNICOM, down pipe For helix tube, by lower groove sidewall in groove, in-position makes the high temperature of inflow to ascending tube higher than 1/2nd of lower groove depth Oil level is entered by down pipe and Xia Cao inner spaces UNICOM, down pipe in upper strata, oil tank of transformer lower space by lower trench bottom Enter in groove, the port that down pipe is entered in groove is higher than at least one centimetre of lower trench bottom, is easy to granule foreign to precipitate.

The embodiment of the present invention one as shown in Figure 1, 2, the helix tube type circulation cooling transformer on the basis of embodiment one, on More than row Guan Weiwu roots, the present embodiment is 17, is connected to horizontal up house steward 15, and up house steward is in charge of 16 by up Lower groove is connected to, less than ascending tube quantity, the present embodiment is three to up quantity of being in charge of；Down pipe is more than ten, this enforcement Example is 17, is connected to horizontal descending house steward 17, and descending house steward is in charge of 18 and is connected to lower groove by descending, up to be in charge of number Amount is less than five, and the present embodiment is three；Under the present embodiment groove with it is up be in charge of, it is descending be in charge of be connected by loose joint, house steward Setting can effectively reduce loose joint quantity, be easily installed and reduce cost, and down pipe position can not receive support Limit.

During enforcement, the iron core arranged in oil tank of transformer and winding, iron core and winding be located at fuel tank height 2/3rds with In lower space, the temperature of iron core and winding work oil reservoir can be reduced further；Hoop is elastic force ring, such as spring or elastic force Rope.

It is only in sum present pre-ferred embodiments, all equivalent modifications done according to the application and prior art addition are equal It is considered as the technology of the present invention category.

Claims

1. a kind of helix tube type circulation cooling transformer, including oil tank of transformer, radiating tube and conservator, conservator is connected by support On oil tank of transformer, conservator position is higher than oil tank of transformer position, it is characterised in that conservator is provided with lower groove, center and upper lid, Lower groove is provided with outer, and center is the frame open up and down surrounded by side, and middle frame bottom is provided with the abduction alignd with outer Edge, center top is provided with the upper edge of the abduction alignd with upper lid edge；Middle inframe is provided with two sheets of flexible barrier film, two-layer barrier film Edge airtight connection is simultaneously between outer and lower edge, and two-layer barrier film middle part is swelled upwards, and barrier film protuberance amplitude in upper strata is big In lower floor's barrier film protuberance amplitude, the resilient seal mouth of its both sides of UNICOM is equipped with two-layer barrier film；Radiating tube is divided into up Pipe and down pipe, oil tank of transformer upper space is by ascending tube and Xia Cao inner spaces UNICOM, and down pipe is helix tube, up Pipe upper end is entered in groove by lower groove sidewall, and higher than 1/2nd of lower groove depth, oil tank of transformer lower space is led to for in-position Down pipe and Xia Cao inner spaces UNICOM are crossed, down pipe is entered in groove by lower trench bottom, and the port that down pipe is entered in groove is higher than At least one centimetre of lower trench bottom.

2. helix tube type circulation cooling transformer according to claim 1, it is characterised in that set in the oil tank of transformer Cored and winding, iron core and winding are located in less than 2/3rds spaces of fuel tank height.

3. helix tube type circulation cooling transformer according to claim 1, it is characterised in that the resilient seal mouth peripheral hardware There is hoop.

4. a kind of helix tube type circulation cooling transformer according to claim 3, it is characterised in that the hoop is bullet Power ring.