CN201629197U

CN201629197U - Transformer oil off-line circulating device

Info

Publication number: CN201629197U
Application number: CN201020055471XU
Authority: CN
Inventors: 孙继川
Original assignee: Individual
Current assignee: CHONGQING YUDIAN LIGHTNING PROTECTION TECHNOLOGY Co Ltd
Priority date: 2010-01-21
Filing date: 2010-01-21
Publication date: 2010-11-10
Anticipated expiration: 2020-01-21

Abstract

The utility model relates to a transformer oil off-line circulating device which solves the technical problem of providing a transformer oil off-line circulating device with convenient use, thorough deslagging and dehydration, good radiating effect, safety and reliability. The device comprises an outer pipeline, a pump, a detector, a controller, a trash separator, a dehydrator and a radiator, wherein one end of the outer pipeline is communicated with a transformer oil outlet, and sequentially communicated with the pump, the detector, the controller, the trash separator, the dehydrator and the radiator in series; and the other end of the outer pipeline is communicated with a transformer oil inlet. The device can conduct deslagging and dehydration automatically according to the transformer oil condition, and lead transformer oil to be radiated to the maximum. The transformer using the technology of the utility model not only leads to the insulating performance of the transformer oil to be well retained, but also can greatly save the transformer oil usage, and further save the manufacturing cost and simultaneously reduce the transformer volume.

Description

Online external circulating device of transformer oil

Technical field

The utility model relates to field transformer, is specifically related to a kind of online external circulating device of transformer oil.

Background technology

Transformer oil plays crucial effects to the safe and stable operation of transformer.Because transformer oil has the dielectric strength more much higher than air, insulating material is immersed in the oil, not only can improve dielectric strength, but also can avoid the erosion of moisture; The specific heat of transformer oil is big simultaneously, is commonly used for cooling agent, and the heat that produces during the transformer operation rises the oily expanded by heating near iron core and winding, and by the convection current up and down of oil, heat sheds by the fin of transformer, guarantees that transformer normally moves.

The reason that causes transformer normally to move because of the problem of transformer oil has three: the one, because the electrolysis of electric arc and high temperature action make transformer oil produce the carbon of free state in the transformer, cause insulation property to reduce, the 2nd, because being easy to absorb moisture, transformer oil produces organic acid, cause insulation property to reduce, the 3rd, because the transformer oil temperature rise is too high, cause the Inside coil quick aging, insulation property reduce.

For impurity in the control transformer oil and moisture, usually need to extract transformer oil and detect, if impurity or Moisture high UCL, just need close down transformer, extract transformer oil out it is filtered, had a strong impact on the lasting use of transformer like this, for productive life brings greater inconvenience; And in order to guarantee that transformer is no more than the temperature of regulation, usually needing to charge into a large amount of transformer oil dispels the heat, also needing to increase fan in the time of necessary dispels the heat to the transformer housing, so just caused existing transformer to have very big volume, take a large amount of transformer oil, not only increased product cost but also expended a large amount of resources.

Though patent No. ZL02264808.9 discloses a kind of on-load tap changers of transformers oil on-line oil cleaning device, mainly form by pipeline, electrodynamic pump, filter, the branch oil pipe of mounting strap valve on oil inlet pipe and flowline, oil inlet pipe connects electrodynamic pump, filter, flowline successively, and described filter is oil strain, drainage complex filter.Though solved the problem that to shut down when transformer oil is dry, but still there are the following problems: the heat dissipation problem that 1, can not well solve transformer oil; 2, because it lacks the checkout gear of oil, can't carry out intelligentized filtration; 3, device only filters at the circuit-breaker oil of transformer, can't be applicable to the inner oil filtration of whole transformer.

The utility model content

Technical problem to be solved in the utility model provides the online external circulating device of transformer oil that a kind of easy to use, radiating effect oil in the transformer body good, can intelligence filters, reduce the volume of transformer, the technical problem that better solves the transformer heat dissipation problem and whole transformer oil is filtered.

In order to solve the problems of the technologies described above, the utility model provides a kind of online external circulating device of transformer oil, include outer pipeline, pump, detector, controller, trash separator, dehydrator, radiator, outer pipeline one end is communicated with the transformer oil outlet outward, and polyphone leads to pump, detector, controller, trash separator, dehydrator, radiator successively, is communicated with the transformer oil import outward by the outer pipeline other end then.

Adopt technique scheme, because the transformer oil of transformer inside passes through detector, controller, trash separator, dehydrator and radiator successively along outer pipeline under the effect of pump, behind radiator heat-dissipation, be back to transformer, the inside and outside closed circulation pipeline that formed of whole transformer oil.Wherein, detector detects the quality state of the oil of flowing through and passes to controller, this moment controller analyzing and testing result, if impurity or moisture surpass the scope that allows, then starting corresponding trash separator or dehydrator handles, if impurity and moisture in prescribed limit, then do not start corresponding trash separator and dehydrator.

In addition,, can more effective transformer oil be dispelled the heat, all transformer oil in the transformer are filtered and dispel the heat because the radiator of circulation on the outer pipeline is installed in outside the transformer; The interior section circulation of transformer oil flow in the outer pipeline again, under the function situation that guarantees transformer oil, also can reduce the volume of transformer; And on the outer pipeline that circulates detector and controller are installed, can be intelligentized to filtering automatically according to oily situation.

Further, in order to improve the radiating efficiency of radiator, radiator is made of one group of parallel metal pipe holding altogether, increases area of dissipation.

Further, in order to improve the ease for use of online external circulating device of transformer oil, pass on the working condition of system in real time, also be connected with display unit on the controller, the result of result that will detect and processing and state show at any time.

Compared with prior art, advantage of the present utility model is: not only can the on-line filtration transformer oil, the insulation property that keep oil, and simultaneously convection current oil is by the road effectively lowered the temperature, and then reaches the quantity of saving transformer heat transmission oil, the volume and the manufacturing cost of dwindling transformer, install easy to use simultaneously, can be controlled automatically by controller, make the people away from high-tension transformer, the safety that has both guaranteed the people has also guaranteed the safe and stable operation of transformer.

Description of drawings

Fig. 1 is the structural representation of the utility model online external circulating device of transformer oil;

Fig. 2 is that the filter of the utility model online external circulating device of transformer oil is assorted, drainage process operation schematic diagram.

Embodiment

As depicted in figs. 1 and 2, a kind of online external circulating device of transformer oil of the utility model, include outer pipeline 2, electrodynamic pump 1, detector 9, controller 10, trash separator 3, dehydrator 4, shell and tube radiator 5, outer pipeline 2 one ends are communicated with the transformer oil outlet outward, and polyphone leads to electrodynamic pump 1 successively, detector 9, controller 10, trash separator 3, dehydrator 4, shell and tube radiator 5, be communicated with the transformer oil import outward by outer pipeline 2 other ends then, outer pipeline and transformer form the closed circulation pipeline, the two ends of outer pipeline also are provided with adpting flange 7 and maintenance valve 6, are connected with status displays 11 on the controller 10.

Transformer oil along outer pipeline 2 flow through successively detector 9, trash separator 3, dehydrator 4 and shell and tube radiator 5, after 5 heat radiations of shell and tube radiator, is back to transformer at last under the effect of electrodynamic pump 1.Detector 9 detects the Quality of Transformer Oil state of flowing through and also passes to controller 10, this moment controller 10 analyzing and testing results, testing result is presented on the status displays 11; If impurity surpasses the scope that allows, then control trash separator 3 startups and carry out flowing to dehydrator 4 again after the removal of impurities; If impurity does not surpass the scope that allows, then to control trash separator 3 and do not start, transformer oil directly flows to dehydrator 4; If the scope that moisture surpass to allow is then controlled dehydrator 4 and is started and flow to shell and tube radiator 5 again after dewatering and dispel the heat; If moisture does not surpass the scope that allows, then controlling dehydrator 4 does not start and directly flows to shell and tube radiator 5 and dispel the heat, pass through in outer pipeline 2 inflow transformers through the transformer oil behind shell and tube radiator 5 radiating and coolings, guaranteed the cryogenic effect of the transformer oil in the transformer, thereby the insulation property that keep oil, simultaneously owing to storing the transformer oil of some in the pipeline 2, and then reach the consumption that reduces the transformer oil in the transformer, dwindle the volume and the manufacturing cost of transformer, install easy to use simultaneously, can be controlled automatically by controller, make the people away from high-tension transformer, the safety that has both guaranteed the people has also guaranteed the safe and stable operation of transformer.

Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; as adopt other pump and the installation site of pump is changed, these also should be considered as protection range of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.

Claims

1. online external circulating device of transformer oil, it is characterized in that: include outer pipeline, pump, detector, controller, trash separator, dehydrator, radiator, outer pipeline one end is communicated with the transformer oil outlet outward, and polyphone leads to pump, detector, controller, trash separator, dehydrator, radiator successively, is communicated with the transformer oil import outward by the outer pipeline other end then.

2. a kind of online external circulating device of transformer oil as claimed in claim 1 is characterized in that: described radiator is the shell and tube radiator that is made of one group of parallel metal pipe holding altogether.

3. a kind of online external circulating device of transformer oil as claimed in claim 1 is characterized in that: also be connected with display unit on the described controller.