CN106710809A - Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station - Google Patents
Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station Download PDFInfo
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Abstract
The invention relates to a vapor-phase drying system and a processing method of an on-site +/-800KV converter transformer in a power station. The system comprises solvent storage tanks, a vapor phase condensation module, an evaporation and distillation module, a waste oil tank, a water cooling module connected with the vapor phase condensation module through a vacuum module, an electrical heating module connected with the evaporation and distillation module, a filter module and a transformer module. The transformer module is connected with a coarse filter module. The processing method includes a preparing stage, a heating stage, a pressure lowering stage, a high vacuum stage, an oil filling stage, and a vacuum breaking and standing stage. The system solves the technical problem of on-site vapor phase drying, is capable of achieving the repair of extra-high voltage products on site or in an installation station without returning to the manufactory, saves the heavy cost of rebuilding roads and bridges along the way due to transportation of large, heavy products, and saves a lot of transportation cost and transportation time.
Description
Technical field
The present invention relates to a kind of portable vapour phase dried process system and its process, dedicated for ± 800kV
Vapour phase dried process of the high-end DC converter transformer at power station scene.Belong to transformer manufacturing and service technique
Field.
Background technology
The change of ± 800kV DC converters is that the change of current of current highest voltage level becomes.Only it is in the world at present number
Few transformer producer, can produce such product.And this kind of product, all it is in transformer manufacturing factory
Production in high-end clean factory building.There is high requirement to equipment and manufacturing environment.It is existing in transformer station high-voltage side bus
, such transformer disintegrates, repairs, dries, and never carries out in the world.
± 800kV DC converters become, if repaired at the scene, traditional dried process can only be taken to set in the past
Standby and process, but be difficult to meet the insulating properties requirement of the huge transformer of this extra-high voltage.It is general all to obtain
Return repair in shop reason.But, because its huge hauled weight, and the transportation clearance for transfiniting is, it is necessary to the fortune of costliness
Defeated expense, and very long haulage time；And huge expense is needed to road rectification and bridge strengthening.Especially
It is that vapour phase dried process in factory needs very big and very heavy vacuum tank, and the vacuum tank is at the scene
In cannot implement.
If processed at the scene, existing method is typically all heated using Circulation and Hot Oil Spray, and some use low frequencies add
The method of heat.Because the method for deep fat heating, before being the moisture discharge in transformer insulated, deep fat is blocked up
The pore of insulating materials is filled in, so as to hinder the smooth discharge of moisture.Institute is all difficult to protect in these processes
Demonstrate,prove the quality of dried process.
The content of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, develops a kind of vapour phase drying system and its process,
± 800kV DC converters after to spot repair become product carries out vapour phase dried process.
The technical scheme that is used to achieve the above object of the present invention is：What ± 800kV the changes of current of power station scene became
Vapour phase drying system, including be linked in sequence solvent holding vessel, vapour phase condensation module, evaporative distillation module,
Sump tank, the cooling water source module being connected with vapour phase condensation module by vacuum module, and and evaporative distillation
Electrical heating module, filter module, the transformer module of module connection；The transformer module and filter
Module is connected.
The vacuum module, vapour phase condensation module, evaporative distillation module, filter module, electrical heating module,
Cooling water source module, solvent holding vessel, sump tank, transformer module are respectively arranged in independent framework,
It is connected with control system module.
The fuel tank that the transformer module is used is a container for closing, and transformer body is located in fuel tank；
Top of oil-tank is provided with port, is connected with vacuum module, vapour phase condensation module；Fuel tank top is provided with solvent vapo(u)r
Entrance, is connected with evaporative distillation module；Tank bottoms are provided with condensate liquid return port, are connected with filter module.
The pipeline that the solvent vapo(u)r entrance is connected with evaporative distillation module is provided with vacuum butterfly valve, and and solvent
Steam inlet is adjacent.
The vapour phase drying process method that ± 800kV changes of current of power station scene become, comprises the following steps：
(1) preparatory stage：Vacuum module is vacuumized to the fuel tank in transformer module, and electrical heating module is given
Evaporative distillation module provides conduction oil；
(2) heat up the heating period：The solvent vapo(u)r of transformer module origin spontaneous evaporation distillation module is followed
Ring is heated, and the liquid flux from transformer module is alternately evaporated heating and distilled by evaporative distillation module
Purification；
(3) buck stage：Vapour phase condensation module and vacuum module lead to the solvent vapo(u)r in oil tank of transformer
Cross pipeline and all return to vapour phase condensation module, liquid flux is returned in evaporative distillation module by filter module；
(4) high vacuum stage of Fig：Vacuum module is vacuumized to the oil tank of transformer in transformer module；
(5) the oiling stage：The transformer oil of outside input, notes the fuel tank into transformer module；
(6) broken sky is quiet puts：In setting time, vacuum is released with dry air.
The preparatory stage comprises the following steps：
1-1) vacuum module is vacuumized to the fuel tank of transformer module；
When 1-2) electrical heating module itself is powered and internal conduction oil is reached design temperature, given by pipeline
Evaporative distillation module provides conduction oil；
1-3) two evaporator temperatures in evaporative distillation module are raised to design temperature.
The intensification heating period comprises the following steps：
2-1) solvent vapo(u)r is sent into transformer module by two evaporators in evaporative distillation module by pipeline
Oil tank of transformer in, transformer is heated；Meanwhile, heating tape and bottom on oil tank of transformer
Heating plate, begins to warm up；
2-5) the liquid flux of the transformer body heat absorption condensation generation of transformer module, from tank bottoms
By pipeline inflow filter module, liquid flux is returned evaporative distillation module for circulating by filter module
Heating is used；
2-6) the solvent vapo(u)r and water vapour that the transformer oil upper box part of transformer module is returned, by pipe
Road returns to vapour phase condensation module, and is condensed into liquid by main condenser therein, is collected into vapour phase condensation mould
Separated in the collecting tank of block and because proportion is different；
2-7) in transformer oil is cleaned getting off and is mixed into solvent, and after temperature reaches setting value,
Two evaporators in evaporative distillation module start alternatively vaporised heating and distil(l)；Evaporative distillation module is protected
Hold heating and transformer oil is discharged in sump tank periodically；
When 2-5) rate of temperature rise of the transformer insulated temperature in transformer module is less than setting value, it is repeated
Distillation and intermediate relief in the middle of repeatedly, the moisture discharge in insulation, insulation temperature rise to the temperature of setting.
The buck stage is comprised the following steps：
3-4) electrical heating module is out of service；
3-5) vapour phase condensation module and vacuum module work on, by the solvent vapo(u)r in oil tank of transformer
Vapour phase condensation module is all returned to by pipeline, liquid flux is returned in evaporative distillation module by pipeline；
Heating tape 3-6) on oil tank of transformer and bottom heating plate, heating with full power.
The high vacuum stage of Fig is comprised the following steps：
4-2) vapour phase condensation module is out of service；
4-2) vacuum module is vacuumized to the oil tank of transformer in transformer module, until vacuum module generation
Condensation water quantity reach the permissible value of setting, vacuum pressure, temperature, the time all respectively reach the value that sets as
Only.
The oiling stage comprises the following steps：
5-3) the vacuum butterfly valve closed on transformer module oil tank of transformer, by the change from outside input
Depressor oil note oil-feed tank；
Vacuum module continues to vacuumize transformer module oil tank of transformer, is until vacuum reaches threshold value
Only.
The invention has the advantages that and advantage：
1. the present invention has manufactured a special live vapour phase and has dried Special oil tank, substitutes huge, heaviness, holds high
It is expensive, manufacturing cycle vacuum tank very long, fuel tank is not subject to any damage to protection product in itself.For the change of current becomes
Dry at the scene and do not need vacuum tank to start precedent.
2. the present invention solves the dry technical barrier of live vapour phase, it is possible to achieve extra-high die pressing product is repaiied at the scene
Reason, or repaired on station is installed, it is not necessary to return to manufactory's repairing.
3. save because heavy Over-size transport, it is necessary to the expensive expense transformed road and bridge on the way and need；
And substantial amounts of cost of transportation is saved, and save substantial amounts of haulage time.
4., because using this drying method, repair cost can be saved, cost of transportation, and during transport
Between, can be that manufactory and user bring considerable economic worth；Pole is also brought along to grid company and society
Economic worth and comprehensive benefit high.
5. process of the invention, can solve high-end transformer field cannot dry, or dry mass
The problem of transformer insulated performance requirement cannot be met.To extreme high voltage, the huge AC and DC of high power capacity
Dried process after transformer field maintenance, and the drying after extra-high voltage transformer disintegration Assembling, there is provided
Effective drying means.
6. the utilization of present invention process method, can be greatly reduced on the basis of product insulating properties are ensured
The transport of product and maintenance cost, save substantial amounts of haulage time, it is ensured that putting into operation in time for product, have
There are great economic benefit and technological value.
7. the process time can be saved using middle step-down and the combination of middle distillation in technique.
8. two evaporator alternately heating and distil(l)s, can not interrupt heating and solvent is purified.Carry
Device efficiency high.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Wherein, 1 vacuum module, 2 vapour phase condensation modules, 3 evaporative distillation modules, 4 filter modules, 5
Electrical heating module, 6 cooling water source modules, 7 solvent holding vessels, 8 sump tanks, 9 control system modules, 10 become
Depressor module, 11 vacuum butterfly valves；
Fig. 2 is that ± 800kV the changes of current become live vapour phase dry treatment process process schematic；
Wherein, a1, preparatory stage, a2, cascade raising temperature stage, a3, washing oil stage：Two evaporators
Step-down in the middle of alternatively vaporised and distillation repeatedly, a4, stabilization heating period：Two evaporators are heated simultaneously, a5,
Buck stage, a6, high vacuum stage of Fig, a8, quiet put the stage at a7, vacuum oil stage.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The present invention can at the scene be assembled existing modules in vapour phase drying device, and at the scene
Effective dry treatment process method is taken to meet the high level requirement of product insulating properties.Effectively solve
The technical barrier of the type of having determined transformer dried process at the scene, obtains good quality and comprehensive benefit.
Vapour phase drying system of the invention disclosure satisfy that 750kV, 800kV, and 1000kV and the above
Vapour phase dried process of the transformer at power station scene.Can be on common transport vehicle, common
Transported on road；It is high, wide to be no more than transportation limitation.Vapour phase drying system is modularized design, is removed
Fuel tank in transformer module has been carried out outside the improvement in structure, the internal structure of modules and
Internal annexation is prior art.
Portable solvent vapour phase drying system, directly in Special oil tank is dried, realizes the right ± 800kV changes of current
Becoming device body carries out solvent vapour phase drying, it is ensured that the dry mass of device body is reached at the drying of transformer manufacturing factory
Reason level.And after the drying, take effective device body damp-proof treatment, it is ensured that product install etc. during,
The moisture absorption is reduced to greatest extent, it is ensured that product has excellent insulating properties.
As shown in figure 1, field drying processing system includes that 10 is most of, using organic vapor to becoming
Depressor device body is dried.Each functions of modules is referring to table one：
Table one
10 parts of the above, are installed in different frames.Can conveniently load and unload, and available common fortune
Defeated car is transported；It is easy to be arranged into around transformer at the scene, and links up.
The structure connection of system is as follows：
The vacuum port b of vacuum module 1 is connected with the condensate liquid collecting tank port d of vapour phase condensation module 2
For vacuumizing, vacuum port b be connected with the port a of transformer module 10, for vacuumizing；Cooling
Water gateway is connected with the cooling water gateway of cooling water source module 6 by cooling water pipe p and q, for right
Equipment in vacuum module 1 is cooled down；
The liquid flux gateway s/v of vapour phase condensation module 2 and the liquid flux gateway of solvent holding vessel 7
R/u is connected, for the addition and return of liquid flux；Condensate liquid collecting tank port d and transformer module 10
Port a connection, for returning to solvent vapo(u)r；Vacuum port e is vacuumized with evaporative distillation module 3
Mouth f is connected by pipeline, for vacuumizing；
The heat conducting oil pipe gateway of evaporative distillation module 3 and the heat conducting oil pipe gateway of electrical heating module 5
Connected by pipeline m/n, for transmitting conduction oil；Condensate liquid inside transformer module 10 passes through condensate liquid
The condensate inlet j of return port i inflow filters module 4, by the condensate outlet k of filter module 4
Enter into the liquid inlet l of evaporative distillation module 3；Distillation terminates remaining waste oil and passes through evaporative distillation module 3
Waste oil outlet x squeeze into the waste oil entrance y of sump tank 8.
Wherein, evaporative distillation module 3 uses two function identical evaporators；Two evaporators can be handed over
For realization, full symmetric evaporation and distillation function, solvent is purified using continuous still, no
With interruption heating process.
Electrical heating module 5 uses isolated electric heater, electric heater never to have leakage.Change electricity
Heating element heater, without releasing conduction oil.
Cooling water source module 6 uses military handpiece Water Chilling Units, with good anti-seismic performance, it is ensured that repeatedly transport
After defeated, cold has good sealing, will not leak refrigerant.
Transformer module 10, using special fuel tank, fuel tank is a container for closing, easy as one
Vacuum tank, the fuel tank is loaded by transformer body.Top of oil-tank is provided with port a, is steamed with solvent for vacuumizing
The return of vapour；Fuel tank top is provided with solvent vapo(u)r entrance h, on the pipeline being connected with evaporative distillation module 3 and
Vacuum butterfly valve is provided with solvent vapo(u)r entrance h；Tank bottoms are provided with condensate liquid return port i, by pipeline
It is connected with filter module 4.
Module 1~8 and 10 is connected with module 9, there is independent control cabinet in modules, realizes
The dcs of real meaning.Module 9 includes the computer and the control system that interconnect,
The sensor information of collection feeds back to computer by the I/O controllers in each module in each module, counts
Calculation machine controls the equipment in each module by control system.Using I/O controllers and work in control cabinet
The control system of control machine, with good open and perfect safety protection function.
As shown in Fig. 2 the flow of the process of field drying treatment is as follows：
The general set-up procedures of one, (solution formulation process)
1) embodiment of this patent, is to have made the special live vapour phase of confession ± 800kV changes of current change at the scene to do
One Special oil tank of dry treatment.It is required that Special oil tank：
(1) container dimensional of ± 800kV converter transformer bodies can be accommodated.
(2) fuel tank uses Q235 carbon steel, and its structure is still the structure of common fuel tank, but to ensure full
Sufficient end vacuum intensity requirement.
(3) all of seal of fuel tank, still using the sealing of original oil tank of transformer；Interior lacquering
Still using the inwall paint of oil tank of transformer, the high temperature test of vapour phase dried process process is resistant to.It is resistant to vapour
The test of the solvent flush of phase drying process.
(4) fuel tank sidewall is externally provided with heating tape, and bottom is provided with infrared electrothermal plate.Total heating power is needed
The need for the satisfaction ± 800kV changes of current become huge thermal capacity.
(5) there is insulation quilt in whole fuel tank outer wrap, insulation quilt is followed successively by asbestos from the inner to the outer
Cloth, mineral wool, fire-resistant tarpaulin；Insulation to fuel tank, can prevent ± 800kV the changes of current from becoming huge surface area band
The heat loss come, in step-down and high vacuum stage of Fig, will not make temperature reduction excessive.
2nd, the actual general preparation implemented
(1) pipeline between modules is connected；
(2) power and control electric wire are connected.
(3) to system energization, prepare to enable.
(4) compressed air is connected, driving force is provided to system valve.
(5) cold in cooling water source module starts, and provides a system to meet desired cooling water.
(6) start the computer in control system module 9, show whole system state.And work is set
Skill parameter, carries out start-up operation and prepares.
(7) during liquid flux is by solvent holding vessel 7, by pipeline r-s, the evaporative distillation of module 3 is squeezed into
In device；Vacuum pump set in vacuum module 1, by pipeline c-d, to vapour phase condensation module 2, then by pipe
Road e-f is vacuumized to the evaporator for distillation in 3, is extracted into operating vacuum pressure (such as 4.5kPa~3.0kPa).
3rd, System Working Principle is as follows：
A. preparatory stage
1) start the computer and control system in control module 9, select automatic running program, click " is opened
Begin ".System automatically begins to operation.
2) by pipeline a-b, the fuel tank to module 10 is vacuumized module 1, reaches the vacuum of setting (such as
Below 700Pa).
3) electrified regulation of module 5, by heat conduction oil circuit piping m-n systems, to evaporative distillation module 3
Heating conduction oil is provided.Temperature control is setting range (heat conduction oil temperature is set as 155 DEG C).
4) two Evaporated distillers in module 3, temperature is raised to the temperature (135 DEG C) of setting, while
Heating is carried out to prepare.
B. heat up the heating period
(1) after the completion of the preparatory stage, computer can be automatically brought to the intensification heating period.
(2) heat up the heating period, two Evaporated distillers in module 3, while by solvent vapo(u)r
Entered in the oil tank of transformer of module 10 by pipeline g-h, transformer is heated.In order to protect insulation,
Multiple step heating process is taken, five heating step temperature are set, 10~15 DEG C of temperature gradient makes insulation
Temperature reaches 100 DEG C or so.
(3) while, the heating plate of heating tape and bottom on transformer module 10 begins to warm up.
(4) liquid flux of generation is condensed in the fuel tank of transformer module 10 with device, from tank bottoms mouthful i
With the oil discharging valve set on entrance j connecting lines, by pipeline i-j, inflow filter module 4, wherein
Pump solvent is returned into evaporator by pipeline k-l, be circulated heating and use.
(5) solvent vapo(u)r and water vapour that fuel tank upper port a is returned in transformer module, by pipeline
A-c-d, returns to vapour phase condensation module 2, and is condensed into liquid by the main condenser in vapour phase condensation module 2,
It is collected into collecting tank therein, and is separated because proportion is different there.
(6) with the carrying out of heating process, substantial amounts of transformer oil can be cleaned, and be mixed into solvent；
And after transformer temperature reaches value (such as 80 DEG C~100 DEG C) of setting, in evaporative distillation module 3
Two evaporators start alternatively vaporised heating and distil(l).One side laser heating, on the one hand steams evaporation
Transformer oil remaining in module 3 is evaporated, is discharged to periodically in sump tank 8 by pipeline x-y.
(7) when the insulation temperature of transformer module 10 rise very slow (per hour less than 1 DEG C) when, evaporative distillation
Module 3 begins to warm up the distillation in the middle of process, referred to as " centre distillation ", to improve the efficiency of heating surface and to go out
Water efficiency.Centre distillation and middle pressure reduction (referring to the step-down in the middle of heating process), can be carried out simultaneously.
(8) centre distillation and middle step-down are repeated a number of times, finally so that the moisture in transformer insulated is big
Amount discharge, insulation temperature rises to the temperature (such as more than 120 DEG C) of setting.Stop the heating period.
(9) in heating process, technology controlling and process and the equipment control of each module are all automatically finished by module 9.
C. buck stage
(1) after the heating period terminates, computer can be automatically brought to buck stage.
(2) heating system of module 5 is all out of service.
(3) module 2 and module 1 work on, and make the solvent vapo(u)r in oil tank of transformer by pipeline a-c-d,
Module 2 is all returned to, liquid flux passes through pipeline i-j-4-k-l, in return module 3.
(4) heating tape and bottom heating plate in module 10, it is necessary to which total power begins to warm up, maintainer body
Temperature is more than 90 DEG C.Ensure pressure reduction, transformer there are enough heats, it is ensured that the discharge of solvent and absolutely
The discharge of moisture in edge.
(5) in pressure reduction, each module process control and equipment are controlled, and are all 9. automatically finished by module.
After buck stage terminates, system is automatically into next stage.
D. high vacuum stage of Fig
1) after buck stage terminates, computer can be automatically brought to high vacuum stage of Fig.
2) vapour phase condensation module 2 withdraws from work.
3) module 1, all devotes oneself to work.The fuel tank in transformer module 10 is taken out entirely by pipeline b-a
Speed is vacuumized.
4) condensation water quantity for being extracted into vacuum system generation always reaches the permissible value of setting (such as：Insulation per ton
Water yield is less than 20 grams to material per hour), vacuum pressure (below 10Pa), time all reach the value of setting.
E. oiling stage
(1) after high vacuum stage of Fig terminates, computer can point out to think to terminate, or be automatically stopped high vacuum stage of Fig.
Prepare to start the oiling stage.Become the particularity of product as the ± 800kV changes of current, high vacuum stage of Fig is direct after terminating
Into the oiling stage, it is ensured that insulation can never arrange process and make moist because of device body.
(2) specially increased vacuum butterfly valve on fuel tank in closedown module 10, by being set on i-j connecting lines
Put (qualified) transformer oil note oil-feed tank of fuel tap goalkeeper's outside input.
(3) by main vacuum manifold a-b, vacuum module 1 continues to fuel tank pumping high vacuum in module 10.
F. broken sky is quiet puts
Vacuum is released with dry air.It is quiet unconventional and unrestrained to needing the time.
Claims (10)
1. the vapour phase drying system that ± 800kV changes of current in power station scene become, it is characterised in that：Including being linked in sequence
Solvent holding vessel (7), vapour phase condensation module (2), evaporative distillation module (3), sump tank (8), lead to
Cross the cooling water source module (6) that vacuum module (1) is connected with vapour phase condensation module (2), and with evaporation
Electrical heating module (5), filter module (4), the transformer module (10) of distillation module (3) connection；
The transformer module (10) is connected with filter module (4).
2. the vapour phase drying system that ± 800kV changes of current in power station scene according to claim 1 become, its feature exists
In：The vacuum module (1), vapour phase condensation module (2), evaporative distillation module (3), filter module
(4), electrical heating module (5), cooling water source module (6), solvent holding vessel (7), sump tank (8),
Transformer module (10) is respectively arranged in independent framework, is connected with control system module (9).
3. the vapour phase drying system that ± 800kV changes of current in power station scene according to claim 1 become, its feature exists
In：The fuel tank that the transformer module (10) uses is a container for closing, and transformer body is located at fuel tank
It is interior；Top of oil-tank is provided with port, is connected with vacuum module (1), vapour phase condensation module (2)；Fuel tank top
Solvent vapo(u)r entrance is provided with, is connected with evaporative distillation module (3)；Tank bottoms are provided with condensate liquid return port,
It is connected with filter module (4).
4. the vapour phase drying system that ± 800kV changes of current in power station scene according to claim 3 become, its feature exists
In：The pipeline that the solvent vapo(u)r entrance is connected with evaporative distillation module (3) is provided with vacuum butterfly valve, and with
Solvent vapo(u)r entrance is adjacent.
5. the vapour phase drying process method that ± 800kV changes of current in power station scene become, it is characterised in that described including following step
Suddenly：
(1) preparatory stage：Vacuum module (1) is vacuumized to the fuel tank in transformer module (10), electricity
Heating module (5) provides conduction oil to evaporative distillation module (3)；
(2) heat up the heating period：The solvent of transformer module (10) origin spontaneous evaporation distillation module (3)
Steam is circulated heating, and evaporative distillation module (3) hands over the liquid flux from transformer module (10)
Heated and distil(l) for being evaporated；
(3) buck stage：Vapour phase condensation module (2) and vacuum module (1) make in oil tank of transformer
Solvent vapo(u)r all returns to vapour phase condensation module (2) by pipeline, and liquid flux passes through filter module (4)
In return evaporative distillation module (3)；
(4) high vacuum stage of Fig：Vacuum module (1) is taken out to the oil tank of transformer in transformer module (10)
Vacuum；
(5) the oiling stage：The transformer oil of outside input, notes the fuel tank into transformer module (10)；
(6) broken sky is quiet puts：In setting time, vacuum is released with dry air.
6. the vapour phase drying process method that ± 800kV changes of current in power station scene according to claim 5 become, it is special
Levy is to comprise the following steps the preparatory stage：
1-1) vacuum module (1) is vacuumized to the fuel tank of transformer module (10)；
When 1-2) electrical heating module (5) itself is powered and internal conduction oil is reached design temperature, pass through
Pipeline provides conduction oil to evaporative distillation module (3)；
1-3) two evaporator temperatures in evaporative distillation module (3) are raised to design temperature.
7. the vapour phase drying process method that ± 800kV changes of current in power station scene according to claim 5 become, it is special
Levy is to comprise the following steps the intensification heating period：
2-1) solvent vapo(u)r is sent into transformation by two evaporators in evaporative distillation module (3) by pipeline
In the oil tank of transformer of device module (10), transformer is heated；Meanwhile, the companion on oil tank of transformer
The torrid zone and the heating plate of bottom, begin to warm up；
2-2) the liquid flux of the transformer body heat absorption condensation generation of transformer module (10), from oil
By pipeline inflow filter module (4), liquid flux is returned evaporation and steamed by filter module (4) in bottom portion
Module (3) is evaporated to be used for circulating-heating；
2-3) the solvent vapo(u)r and water vapour that the transformer oil upper box part of transformer module (10) is returned,
Vapour phase condensation module (2) is returned to by pipeline, and liquid is condensed into by main condenser therein, be collected into
Separated in the collecting tank of vapour phase condensation module (2) and because proportion is different；
2-4) in transformer oil is cleaned getting off and is mixed into solvent, and after temperature reaches setting value,
Two evaporators in evaporative distillation module (3) start alternatively vaporised heating and distil(l)；Evaporative distillation mould
Block (3) keeps heating and transformer oil is discharged to periodically in sump tank (8)；
When 2-5) rate of temperature rise of the transformer insulated temperature in transformer module (10) is less than setting value, instead
Distillation and intermediate relief in the middle of repeatedly are carried out again, and the moisture discharge in insulation, insulation temperature rises to the temperature of setting
Degree.
8. the vapour phase drying process method that ± 800kV changes of current in power station scene according to claim 5 become, it is special
Levy is that the buck stage is comprised the following steps：
3-1) electrical heating module (5) is out of service；
3-2) vapour phase condensation module (2) and vacuum module (1) work on, by oil tank of transformer
Solvent vapo(u)r by pipeline all return vapour phases condensation module (2), liquid flux by pipeline return evaporation
In distillation module (3)；
Heating tape 3-3) on oil tank of transformer and bottom heating plate, heating with full power.
9. the vapour phase drying process method that ± 800kV changes of current in power station scene according to claim 5 become, it is special
Levy is that the high vacuum stage of Fig is comprised the following steps：
4-1) vapour phase condensation module (2) is out of service；
4-2) vacuum module (1) is vacuumized to the oil tank of transformer in transformer module (10), until
The condensation water quantity of vacuum module (1) generation reaches the permissible value of setting, and vacuum pressure, temperature, the time all divide
Untill not reaching the value of setting.
10. the vapour phase drying process method that ± 800kV changes of current in power station scene according to claim 5 become, its
It is characterised by that the oiling stage comprises the following steps：
5-1) the vacuum butterfly valve closed on transformer module (10) oil tank of transformer, will be defeated from outside
The transformer oil note oil-feed tank for entering；
5-2) vacuum module (1) continues to vacuumize transformer module (10) oil tank of transformer, until
Untill vacuum reaches threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493285.1A CN106710809A (en) | 2015-08-12 | 2015-08-12 | Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493285.1A CN106710809A (en) | 2015-08-12 | 2015-08-12 | Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106710809A true CN106710809A (en) | 2017-05-24 |
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| CN201510493285.1A Pending CN106710809A (en) | 2015-08-12 | 2015-08-12 | Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829298A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Jet evaporation vapor phase drying equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3908975B2 (en) * | 2002-04-15 | 2007-04-25 | 日本エア・リキード株式会社 | Cooling device and cooling method |
| CN201196896Y (en) * | 2007-12-12 | 2009-02-18 | 天津市三源电力变压器公司 | Vacuum hot oil spraying and drying system of ultra-large transformer |
| CN101457154A (en) * | 2008-12-29 | 2009-06-17 | 保定天威集团有限公司 | Waste kerosene regeneration method in transformer kerosene vapor phase drying process |
| CN102054577A (en) * | 2009-10-30 | 2011-05-11 | 特变电工衡阳变压器有限公司 | System and method for realizing kerosene vapor-phase drying to on-site assembly transformer |
| CN102194564A (en) * | 2010-03-09 | 2011-09-21 | 华北电力科学研究院有限责任公司 | System and method for drying transformer body |
| CN204857384U (en) * | 2015-08-12 | 2015-12-09 | 特变电工沈阳变压器集团有限公司 | On --spot 800kV in power station trades rheologic vapour phase drying system |
-
2015
- 2015-08-12 CN CN201510493285.1A patent/CN106710809A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3908975B2 (en) * | 2002-04-15 | 2007-04-25 | 日本エア・リキード株式会社 | Cooling device and cooling method |
| CN201196896Y (en) * | 2007-12-12 | 2009-02-18 | 天津市三源电力变压器公司 | Vacuum hot oil spraying and drying system of ultra-large transformer |
| CN101457154A (en) * | 2008-12-29 | 2009-06-17 | 保定天威集团有限公司 | Waste kerosene regeneration method in transformer kerosene vapor phase drying process |
| CN102054577A (en) * | 2009-10-30 | 2011-05-11 | 特变电工衡阳变压器有限公司 | System and method for realizing kerosene vapor-phase drying to on-site assembly transformer |
| CN102194564A (en) * | 2010-03-09 | 2011-09-21 | 华北电力科学研究院有限责任公司 | System and method for drying transformer body |
| CN204857384U (en) * | 2015-08-12 | 2015-12-09 | 特变电工沈阳变压器集团有限公司 | On --spot 800kV in power station trades rheologic vapour phase drying system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829298A (en) * | 2020-07-14 | 2020-10-27 | 沈阳诚桥真空设备有限公司 | Jet evaporation vapor phase drying equipment |
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