CN2583589Y

CN2583589Y - Dual-purpose vapour-phase dryer for double evaporimeter

Info

Publication number: CN2583589Y
Application number: CN 02281431
Authority: CN
Inventors: 乔保振
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-28
Filing date: 2002-11-28
Publication date: 2003-10-29
Anticipated expiration: 2012-11-28

Abstract

The utility model provides the dual-purpose vapour-phase drying equipment for a double evaporator, which solves the technical problems that when a transformer with oil is treated by vapor phase drying, residual oil which is mixed in kerosene can not be cleared in time, and the drying process and the quality are influenced; when used for informal processing, vapor phase drying equipment is difficult to heat. The utility model has the main point that both sides of the interior of a vacuum drying box are respectively provided with an evaporator of which the lower part is provided with a lipoid collecting tank; a gas outlet is arranged on the lipoid collecting tank, and the lower side of the lipoid collecting tank is provided with an oil drain; the oil drain is provided with a distilling measuring meter. Two evaporators are distilled to purify and evaporated to heat in an alternating mode. When the utility model is used for informal drying process, a spout is sprayed into air so as to realize a 'voltage transformation method ' process. The utility model has the advantages that the kerosene can be effectively and continuously purified in time without interrupting vapor phase heating, the production period is shortened, the drying quality is improved, and the energy-saving is obvious. The utility model is suitable for drying process of the transformer.

Description

The dual-purpose vapour phase drying device of double evaporators

[technical field]

The utility model relates to a kind of technical matters equipment of realizing transformer dry.

[background technology]

Present big-and-middle-sized transformer dry is handled, and adopts the vapour phase drying device that is provided with a built-in evaporator mostly.Evaporator mainly is made up of heating calancria and jet pipe.Its drying principles be with kerosene as heat-carrying agent, utilize the phase-change heat-exchange principle, heat and dry transformer, i.e. " kerosene vapour phase drying " mode.Handle miniature transformer and transformer coil etc., then adopt " transformation method " equipment for drying.

The vapour phase drying when handling the product of band transformer oil, particularly handle contain the transformer oil mass big reprocess product the time, present equipment has certain defective.The kerosene vapour phase heating period, the transformer Residual oil can be sneaked in the kerosene of circulation.Along with the increase of transformer oil ratio in the kerosene, the kerosene steam of generation can be fewer and feweri.When transformer oil concentration increased to a certain degree, the vapour phase heating almost stopped.At this moment the vapour phase heating process of will having to interrupt is carried out " middle distillation " to kerosene specially and is purified.The time of dried will obviously be prolonged like this.Distillation finishes and also will cause the waste of kerosene with the kerosene flushing line of cleaning.If use uncleanly kerosene for a long time, also can influence the final mass of power transformer product.

In addition, when vapour phase drying device was used for that miscellaneous goods and coil or the like are unofficial to be handled, the vapour phase heating was not adopted in production requirement, only with heating calancria by the natural convection air heat exchange, heats at this moment is very poor.

[summary of the invention]

The purpose of this utility model is at present equipment above shortcomings, and to provide a kind of double evaporators dual-purpose vapour phase drying device.

The utility model solves the technical scheme that above technical problem takes: two sides in vacuum drying chamber inside, respectively establish an evaporator respectively, in the bottom of each evaporator a collecting tank is arranged respectively, steam (vapor) outlet is arranged at each collecting tank top, and oil drain out is arranged at the bottom.At oil drain out the distillation measuring instrument is housed.

The course of work is as follows: 1. in cyclic drying, be mixed with the kerosene of transformer Residual oil, be sprayed onto on the heater comb by jet pipe.In the process of down trickling, kerosene is heated evaporation.The steam of evaporation enters the drying box heating transformer by the steam (vapor) outlet on collecting tank top.Residual oil through predistillation is stayed in the collecting tank, and no longer sneaks in the process system that is circulating, and removes to pollute once again kerosene, realizes the first separation of kerosene and Residual oil.2. when the mixed liquor in the collecting tank reaches a certain amount of,, isolate kerosene to its distil(l) that circulates separately.In still-process, the distillation measuring instrument of collecting tank outlet is constantly measured the physical parameter of mixed liquor.When reaching distillation during ending standard, remaining useless transformer oil is discharged to beyond the circulatory system.3. when an evaporator circulated distil(l) separately, another evaporator still evaporated heat cycles normally.4. hocket distil(l) circulation and evaporation heat cycles of two evaporators under the prerequisite of not interrupting the vapour phase heating, constantly is scavenged into Residual oil beyond the system, promptly realized " heat continuously and distill " of real meaning.5. owing to handle the band oil product at the beginning, just continuously kerosene is purified, rather than by the time transformer is many that system can not be distilled during normal heating again, and promptly the number of times that distills is a lot of the cycle, there is no need pipeline is washed so waste discharge oil finishes.Can save the consumption of flushing pipe to kerosene.6. in unofficial dried process, can atmosphere be sprayed to heating calancria, under computer control, periodically find time and inflate by jet pipe without kerosene vapour phase heating.When finding time, take away water vapour; During inflation,, realize the forced-convection heat transfer of air by shock vibration.Realize " transformation method " dry run.

The utility model compared with prior art, its beneficial effect is:

1. in dry run, do not interrupt the vapour phase heating, just can get rid of remaining transformer oil timely and effectively, kerosene is purified continuously, keep kerosene that cleannes are preferably arranged all the time.Shorten the production cycle and improve drying quality, energy-conservation obvious;

2. during to dried such as small transformers and coils, realize " transformation method " dry run, realize a machine dual-purpose with vapour phase drying device.

[description of drawings]

Following structure accompanying drawing further specifies the utility model.

Accompanying drawing is a structural representation of the present utility model.

[embodiment]

In vacuum drying chamber 2, respectively there is an evaporator both sides.Evaporator is made up of heating calancria 9 and jet pipe 1.In the bottom of vacuum drying chamber leakage fluid dram 4 is arranged, collecting tank 8 is equipped with in the evaporator bottom.Venthole 5 is arranged at collecting tank top, and oil drain out 6 is arranged at the bottom, and oil drain out is equipped with distillation measuring instrument 7.The 3rd, transformer

The course of work is: 1. be mixed with the kerosene of transformer oil, be sprayed onto down trickling on the heater comb 9 from jet pipe 1.Constantly the kerosene steam of evaporation enters the dry transformer 3 of drying box by venthole 5, stays in the collecting tank 8 through single distilled Residual oil.2. when the transformer oil in the collecting tank reaches a certain amount of, to the distillation that circulates separately of the miscella in the collecting tank.The distillation measuring instrument 7 of collecting tank outlet is constantly measured the parameter of mixed liquor.When reaching standard, remaining waste oil is discharged to beyond the circulatory system.When 3. an evaporator circulated distil(l) separately, another evaporator still evaporated heat cycles normally.4. two evaporators hocket, and distil(l) circulates and the evaporation heat cycles.5. in unofficial dried process, atmosphere is sprayed to heating calancria 9, under computer control, find time periodically and inflate by jet pipe 1 without kerosene vapour phase heating.Realize " transformation method " dry run.

Claims

1, the dual-purpose vapour phase drying device of a kind of double evaporators, a side has evaporator in the vacuum drying chamber, the bottom of vacuum drying chamber also has leakage fluid dram, it is characterized in that: the opposite side in vacuum drying chamber also has an evaporator, in the bottom of each evaporator a collecting tank is arranged respectively, steam (vapor) outlet is arranged at each collecting tank top, and oil drain out is arranged at the bottom, at oil drain out the distillation measuring instrument is housed.