CN104157401B - Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof - Google Patents
Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof Download PDFInfo
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- CN104157401B CN104157401B CN201410402907.0A CN201410402907A CN104157401B CN 104157401 B CN104157401 B CN 104157401B CN 201410402907 A CN201410402907 A CN 201410402907A CN 104157401 B CN104157401 B CN 104157401B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 44
- 239000011552 falling film Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000010408 film Substances 0.000 claims abstract description 124
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000002826 coolant Substances 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000005057 refrigeration Methods 0.000 claims abstract description 6
- 239000003507 refrigerant Substances 0.000 claims description 53
- 239000007788 liquid Substances 0.000 claims description 27
- 230000008676 import Effects 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 7
- 230000017531 blood circulation Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 6
- 230000004087 circulation Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000006200 vaporizer Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Transformer Cooling (AREA)
Abstract
The invention provides a main transformer falling film type heat exchanging device with an intelligent frequency conversion function and a using method thereof. The main transformer falling film type heat exchanging device with the intelligent frequency conversion function is composed of a transformer oil flow cooling circulating system, a coolant medium circulating system and a control system, transformer oil and coolant media are not in direct contact, and walls of falling film tubes of a falling film evaporator are used for carrying out heat exchanging. The control system can automatically control the transformer oil in the tube pass of the falling film evaporator, so that the transformer oil forms a film shape and flows down along the inner walls of the falling film tubes, the heat exchanging effect is improved, work of a variable-frequency refrigeration compressor and a variable-frequency oil pump is automatically controlled according to the temperature of oil in a transformer body, and the optimal value of temperature difference between a main transformer winding and oil flows is always maintained. The main transformer falling film type heat exchanging device has the advantages of being safe and reliable, high in cooling efficiency, small in equipment size, low in oil consumption, little in maintenance and economical in overall operation and the like, copper and iron loss of an operating main transformer can be greatly lowered, the overloading capacity and the short circuit current resistance of the main transformer are improved, the service life of the main transformer is prolonged, and safe operation of the main transformer is guaranteed more powerfully.
Description
Technical field
The present invention relates to a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function.
Background technology
In running, due to effect electrically and magnetically, its winding and iron core can generate heat main transformer, such as can not in time by this heat
Amount is taken away, and main transformer will be caused to burn the major accident of even blast, it is therefore necessary to by the transformer oil stream that is full of in main transformer come
Cooling winding and iron core, and the heat that transformer oil stream is taken away need to carry out heat exchange by heat abstractor, it is cold after cooling
Oily stream enters back into transformer body and is cooled down.Traditional main transformer type of cooling is mainly air blast cooling, natural air cooled and water-cooled three
Kind, although water-cooled is economical, efficiency is also high, if as in cooling system generation cooling water to main transformer Seepage, even small
Seepage, also leads to serious consequence；It is air-cooled because air heat content is low so that main transformer cooling effectiveness is low, the scope that cools very little, receives
Such environmental effects are big, and main transformer, heat sink apparatus manufacture are bulky, with oil mass it is many, operating cost is high, maintenance greatly, and
Cause big main transformer copper and iron damage, overload capacity and resistance to shorting current capacity little, insulation life is short to wait shortcomings.
The content of the invention
It is an object of the invention in place of overcoming the deficiencies in the prior art, that is, provide a kind of master with intelligent frequency-conversion function
Become falling film type heat-exchanger rig and using method, the safe, reliable, efficient, Economic regions of energy are walked the heat energy of main transformer generation in operation, had
Try hard to keep and hinder safety, the economical operation of power system main transformer.
The present invention the first specific embodiment be：A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function,
The transformer body of transformer Cooling oil is built-in with including one and the downward film evaporator of transformer body side is arranged at, it is described
Downward film evaporator includes the housing of a closing, is provided with coolant media in the housing, if the housing central section is vertically arranged with
Dry film supplying tube, the film supplying tube have the tubular body of opening for two ends, and the film supplying tube top is placed in an orifice plate, the hole
Housing is divided into upper chamber and lower chambers by plate, and the tube wall that described each film supplying tube stretches out orifice plate upper end is provided with film supplying tube overflow
Hole, the side wall on the transformer body top are provided with out deep fat electromagnetic valve, it is described go out deep fat electromagnetic valve steam with falling film type by the road
The upper chamber sent out in device housing is connected, and the downward film evaporator housing bottom is provided with downward film evaporator tube side outlet pipe, institute
The side wall for stating transformer body bottom is provided with into cold oil valve, the tube side outlet pipe by the road with enter cold oil valve and be connected, the drop
The side wall on kestner long-tube evaporator lower chambers top is provided with downward film evaporator refrigerant exit, and the side wall of downward film evaporator bottom is provided with
Downward film evaporator refrigerant import, downward film evaporator refrigerant exit Jing refrigeration compressors, condenser and throttling by the road
Valve is connected with downward film evaporator refrigerant import, and described refrigeration compressor is Refrigerating Compressor with Inverter.
Further, oil level inductive probe is provided with downward film evaporator housing epicoele room, oil level inductive probe upper end connects
The oil level induction apparatuss for stretching out upper chamber are connected to, the transformer body is provided with temperature sensor, and the tube side outlet pipe is by the road
Frequency conversion oil pump is additionally provided with the connecting line of cold oil valve with entering.
Further, the orifice plate includes plate body, and the plate body is provided with for inserting the through hole of film supplying tube, the plate body
All portions are fitted with downward film evaporator shell inner surface.
Further, the condenser is air-cooled cooler condenser or water condenser.
Further, the main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function also includes control module, described
Control module is electrically connected at oil level induction apparatuss, and temperature sensor, Refrigerating Compressor with Inverter, frequency conversion oil pump go out deep fat electromagnetic valve.
The present invention the second specific embodiment be:A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function
Method, including a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function as claimed in claim 5, concrete steps are such as
Under：
1）Open transformer body top go out deep fat electromagnetic valve and bottom enter cold oil valve and frequency conversion oil pump, transformator master
The heat that main transformer winding and iron core are produced is taken away by the transformer oil of flowing in vivo, and transformer oil itself is heated and becomes hot change
Depressor oil；The heat transformer oil for going out the outflow of deep fat solenoid valve control is flow to around the film supplying tube of downward film evaporator, by falling liquid film
The uniform spout hole of pipe top surrounding, along falling liquid film inside pipe wall formed it is membranaceous flow down, and with downward film evaporator housing in encirclement
Heat exchange is carried out in the low temperature refrigerant medium of film supplying tube surrounding loop, its heat is taken away by low temperature refrigerant and itself becomes cold transformation
Device oil；
2）Refrigerating Compressor with Inverter is opened, Refrigerating Compressor with Inverter is by the low pressure from downward film evaporator refrigerant exit out
Compressing refrigerant gas are into high pressure-temperature cold media gas；Go out Refrigerating Compressor with Inverter high pressure-temperature cold media gas and enter cold in condenser
But into low temperature refrigerant liquid；Throttle to the housing of downward film evaporator from condenser low temperature refrigerant liquid warp knuckle stream valve out
Interior, low temperature refrigerant liquid all flashes to low pressure refrigerant gas, low pressure cold gas after the heat for absorbing a large amount of heat transformer oil
Body is compressed in being pumped down to Refrigerating Compressor with Inverter again, opens coolant media blood circulation with this iterative cycles；
4）After cold transformer oil goes out downward film evaporator tube side outlet pipe, cold oil valve is entered by frequency conversion oil pump Jing and is beaten to transformator master
In body, next round cooling circulation is carried out to winding and iron core；
5）The sensing device and control module of opening control system, control module can be passed according to the oil level of downward film evaporator
The level height that sensor is arranged, controls out deep fat electromagnetic valve, to ensure transformer oil shape in the film supplying tube of downward film evaporator
Film-like is flowed down along falling liquid film inside pipe wall；Control module automatically controls Refrigerating Compressor with Inverter and frequency conversion oil pump according to main transformer oil
Work, when oil temperature is high, control Refrigerating Compressor with Inverter and frequency conversion oil pump are exerted oneself increase, and vice versa, remain main transformer around
Group flows the optimal value of the temperature difference with oil.
Compared with prior art, the invention has the advantages that：The present invention using with it is safe and reliable, utilize falling liquid film
Formula vaporizer carries out the deep fat cooling in main transformer, cooling effectiveness is high, equipment volume is little, with oil mass it is few, safeguard less, overall operation Jing
The huge advantages such as Ji, can greatly reduce running copper, the iron loss of main transformer, improve main transformer overload ability and resistance to shorting current capacity, prolong
Long main transformer service life, the more safe operation of powerful guarantee main transformer.
Description of the drawings
Main transformer falling film type heat-exchanger rig main-process stream schematic diagrams of the Fig. 1 for the embodiment of the present invention；
Transformer oil stream cooling recirculation system schematic diagrams of the Fig. 2 for the embodiment of the present invention；
Coolant circulating system schematic diagrams of the Fig. 3 for the embodiment of the present invention；
Downward film evaporator structure principle charts of the Fig. 4 for the embodiment of the present invention；
Fig. 5 is film supplying tube structure chart in the downward film evaporator of the embodiment of the present invention；
Downward film evaporator aperture plate structure charts of the Fig. 6 for the embodiment of the present invention；
Top views of the Fig. 7 for Fig. 6 of the embodiment of the present invention.
Control system Automatic Control Theory block diagrams of the Fig. 8 for the embodiment of the present invention.
In figure：1- goes out deep fat electromagnetic valve, 2- downward film evaporator tube side inlet pipes, 3- downward film evaporator tube side outlet pipes, 4-
Frequency conversion oil pump inlet valve, 5- frequency conversion oil pumps, 6- enter cold oil valve, 7- downward film evaporators, 8-- downward film evaporator refrigerant exits,
9- Refrigerating Compressor with Inverter, 10- condensers, 11- cooler blower fans, 12- cooler inlets, 13- cooler outlets, 14- throttlings
Valve, 15- downward film evaporator refrigerant imports, 16- temperature sensors, 17- film supplying tubes, 18- downward film evaporator tube sides upper end heat
Oil reservoir, 19- orifice plates, 20- fuel level sensors probe, 21- fuel level sensors, oil film flow process in 22- film supplying tubes, 23-- falling film types steam
Send out device tube side lower end cold oil layer, the refrigerant flow path in 24-- downward film evaporator shell sides, 25- film supplying tube spout holes, 26- transformators
Main body.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1 ~ 8, a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function is cooled down by transformer oil stream
Blood circulation, coolant media（Coolant media can be SF6Or other suitable media）Blood circulation and control system composition.
Transformer oil stream cooling recirculation system mainly includes：One is built-in with the oily transformer body 26 of transformer Cooling and sets
The downward film evaporator 7 of 26 side of transformer body is placed in, the downward film evaporator 7 includes the housing of a closing, the shell
Coolant media is provided with vivo, and the housing central section is vertically arranged with several film supplying tubes 17, and the film supplying tube 17 has for two ends
The tubular body of opening, 17 top of the film supplying tube are placed in an orifice plate 19, and the orifice plate 19 includes plate body, and the plate body is provided with
For inserting the through hole of film supplying tube, plate body week, portion was fitted with downward film evaporator shell inner surface, and housing is separated by orifice plate 19
For upper chamber and lower chambers, each film supplying tube 17 stretches out the tube wall of orifice plate upper end and is provided with film supplying tube spout hole 25, the transformator
The side wall of body top is provided with out deep fat electromagnetic valve 1, it is described go out deep fat electromagnetic valve 1 by the road with downward film evaporator housing in
Upper chamber is connected, and 7 housing bottom of the downward film evaporator is provided with downward film evaporator tube side outlet pipe 3, the transformator master
The side wall of 26 bottom of body is provided with into cold oil valve, the tube side outlet pipe by the road with enter cold oil valve 6 and be connected.Tube side outlet pipe Jing
Pipeline and enter cold oil valve 6 connecting line on be additionally provided with frequency conversion oil pump 5, the frequency conversion oil pump 5 is also associated with frequency conversion oil pump oil-feed
Valve 4.
The operation principle of main transformer falling film type heat-exchanger rig circulation of oil flow system：
Transformer body top go out deep fat electromagnetic valve 1, transformer body bottom enter cold oil valve 6, frequency conversion oil pump 5 and become
Frequency oil pump inlet valve 4；The transformer oil of flowing starts the cycle over flowing in transformer body, and by main transformer winding and iron core generation
Heat is taken away, and transformer oil itself is heated and becomes heat transformer oil；Go out the heat transformer oil that the control of deep fat electromagnetic valve 1 is flowed out
It flow to downward film evaporator tube side inlet pipe 2, forms downward film evaporator tube side upper end deep fat layer 18, into vaporizer tube side part
Upper end, oil by the uniform spout hole 25 of 17 top surrounding of film supplying tube, along 17 inwall of film supplying tube formed it is membranaceous flow down, and with drop
Refrigerant flow path 24 in kestner long-tube evaporator shell side is enclosed in the low temperature refrigerant medium of tube side surrounding loop and carries out heat exchange, is formed
Downward film evaporator tube side lower end cold oil layer 23, its heat is taken away by low temperature refrigerant and itself becomes cold transformer oil；Cold transformation
After device oil goes out downward film evaporator tube side outlet pipe 3,6 dozens, cold oil valve is entered into transformer body 26, to winding by 5 Jing of frequency conversion oil pump
Next round cooling circulation is carried out with iron core.
Coolant media（Coolant media can be SF6Or other suitable media）Blood circulation mainly includes：The falling liquid film
The side wall on formula vaporizer lower chambers top is provided with downward film evaporator refrigerant exit 8, and the side wall of downward film evaporator bottom is provided with
Downward film evaporator refrigerant import 15, Jing Refrigerating Compressor with Inverter 9, the condensation by the road of the downward film evaporator refrigerant exit 8
Device 10 and choke valve 14 are connected with downward film evaporator refrigerant import.
The operation principle of coolant circulating system：Refrigerating Compressor with Inverter 9 by from downward film evaporator refrigerant exit 8 out
Low pressure refrigerant gas compression is into high pressure-temperature cold media gas；The high pressure-temperature cold media gas for going out frequency-changeable compressor 9 enter condenser
In 10, high temperature refrigerant liquid is cooled to；From the high temperature refrigerant liquid out of cooler outlet 13, warp knuckle stream valve 14 flow to drop
Kestner long-tube evaporator refrigerant import 15, into the refrigerant flow path 24 in downward film evaporator shell side；Now due to volume sudden enlargement
And causing part high temperature refrigerant liquid to be changed into low pressure refrigerant gas, coolant liquid evaporation is into can absorb heat in a large number during gas
And whole coolant temperature of liquid are drastically declined, the film supplying tube 17 in vaporizer is absorbed of the low temperature refrigerant liquid after temperature drop
Low pressure refrigerant gas is flashed to all after the heat of interior a large amount of heat transformer oil；Low pressure refrigerant gas goes out vaporizer refrigerant exit 8
Afterwards, compress in being pumped down to Refrigerating Compressor with Inverter 9 again, with this iterative cycles.
In order to preferably realize to said mechanism operational control, the present invention have also been devised a kind of with intelligent frequency-conversion function
Main transformer falling film type heat-exchanger rig control system is specifically included：The main transformer falling film type heat-exchanger rig also includes control module, falling liquid film
Oil level inductive probe 20 is provided with formula evaporator shell epicoele room, 20 upper end of oil level inductive probe is connected with the oil for stretching out upper chamber
Position induction apparatuss 21, the transformer body are provided with temperature sensor, the tube side outlet pipe by the road with the connection for entering cold oil valve
Frequency conversion oil pump is additionally provided with pipeline.The control module is electrically connected at oil level induction apparatuss 21, temperature sensor 16, frequency conversion refrigeration
Compressor 9, frequency conversion oil pump 5, deep fat electromagnetic valve 1 and enter cold oil valve 6 etc..
Its main operational principle：The level height that control module can be arranged according to the fuel level sensor of downward film evaporator,
Deep fat electromagnetic valve is controlled out, to ensure that it is membranaceous along falling liquid film inside pipe wall stream that transformer oil is formed in the film supplying tube of downward film evaporator
Under；Control module can also according to the program of prior design programming, according to the data transmitted installed in main transformer top oil sensor,
The work of Refrigerating Compressor with Inverter and frequency conversion oil pump is automatically controlled, when oil temperature is high, control Refrigerating Compressor with Inverter and frequency conversion are oily
Power increase is pumped out, vice versa, remain the optimal value of main transformer winding and the oil stream temperature difference.
A kind of above-mentioned main transformer falling film type heat-exchanger rig using method with intelligent frequency-conversion function is comprised the following steps that：
1）Open transformer body top go out deep fat electromagnetic valve and bottom enter cold oil valve and frequency conversion oil pump, transformator master
The heat that main transformer winding and iron core are produced is taken away by the transformer oil of flowing in vivo, and transformer oil itself is heated and becomes hot change
Depressor oil；The heat transformer oil for going out the outflow of deep fat solenoid valve control is flow to around the film supplying tube of downward film evaporator, by falling liquid film
The uniform spout hole of pipe top surrounding, along falling liquid film inside pipe wall formed it is membranaceous flow down, and with downward film evaporator housing in encirclement
Heat exchange is carried out in the low temperature refrigerant medium of film supplying tube surrounding loop, its heat is taken away by low temperature refrigerant and itself becomes cold transformation
Device oil；
2）Refrigerating Compressor with Inverter is opened, Refrigerating Compressor with Inverter is by the low pressure from downward film evaporator refrigerant exit out
Compressing refrigerant gas are into high pressure-temperature cold media gas；Go out Refrigerating Compressor with Inverter high pressure-temperature cold media gas and enter cold in condenser
But into low temperature refrigerant liquid；Throttle to the housing of downward film evaporator from condenser low temperature refrigerant liquid warp knuckle stream valve out
Interior, low temperature refrigerant liquid all flashes to low pressure refrigerant gas, low pressure cold gas after the heat for absorbing a large amount of heat transformer oil
Body is compressed in being pumped down to Refrigerating Compressor with Inverter again, opens coolant media blood circulation with this iterative cycles；
4）After cold transformer oil goes out downward film evaporator tube side outlet pipe, cold oil valve is entered by frequency conversion oil pump Jing and is beaten to transformator master
In body, next round cooling circulation is carried out to winding and iron core；
5）The sensing device and control module of opening control system, control module can be passed according to the oil level of downward film evaporator
The level height that sensor is arranged, controls out deep fat electromagnetic valve, to ensure transformer oil shape in the film supplying tube of downward film evaporator
Film-like is flowed down along falling liquid film inside pipe wall；Control module automatically controls Refrigerating Compressor with Inverter and frequency conversion oil pump according to main transformer oil
Work, when oil temperature is high, control Refrigerating Compressor with Inverter and frequency conversion oil pump are exerted oneself increase, and vice versa, remain main transformer around
Group flows the optimal value of the temperature difference with oil.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (1)
1. a kind of main transformer falling film type heat-exchanger rig method with intelligent frequency-conversion function, including it is a kind of with intelligent frequency-conversion function
Main transformer falling film type heat-exchanger rig, a kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function include that one is built-in with change
The transformer body of depressor cooling oil and the downward film evaporator of transformer body side is arranged at, the downward film evaporator bag
The housing of a closing is included, coolant media in the housing, is provided with, the housing central section is vertically arranged with several film supplying tubes, described
Film supplying tube has the tubular body of opening for two ends, and the film supplying tube top is placed in an orifice plate, and housing is divided into by the orifice plate
Upper chamber and lower chambers, the tube wall that described each film supplying tube stretches out orifice plate upper end are provided with film supplying tube spout hole, the transformator master
The side wall on body top is provided with out deep fat electromagnetic valve, it is described go out deep fat electromagnetic valve by the road with downward film evaporator housing in epicoele
Room is connected, and the downward film evaporator housing bottom is provided with downward film evaporator tube side outlet pipe, the transformer body bottom
Side wall be provided with into cold oil valve, the tube side outlet pipe by the road with enter cold oil valve and be connected, the downward film evaporator lower chambers
The side wall on top is provided with downward film evaporator refrigerant exit, and the side wall of downward film evaporator bottom is provided with downward film evaporator coolant
Import, the downward film evaporator refrigerant exit Jing refrigeration compressors, condenser and choke valve and downward film evaporator by the road
Refrigerant import is connected, and described refrigeration compressor is Refrigerating Compressor with Inverter, and downward film evaporator housing epicoele is provided with oil in room
Position inductive probe, oil level inductive probe upper end are connected with the oil level induction apparatuss for stretching out upper chamber, and the transformer body is provided with
Temperature sensor, the tube side outlet pipe be additionally provided with frequency conversion oil pump, the orifice plate bag on the connecting line of cold oil valve with entering by the road
Rubbing board body, the plate body are provided with for inserting the through hole of film supplying tube, the plate body week portion with table in downward film evaporator housing
Face fits, and the condenser is air-cooled cooler condenser or water condenser, and main transformer falling film type heat-exchanger rig also includes control module,
The control module is electrically connected at oil level induction apparatuss, and temperature sensor, Refrigerating Compressor with Inverter, frequency conversion oil pump go out deep fat electricity
Magnet valve；
Comprise the following steps that：
1）Open transformer body top go out deep fat electromagnetic valve and bottom enter cold oil valve and frequency conversion oil pump, in transformer body
The heat that main transformer winding and iron core are produced is taken away by the transformer oil of flowing, and transformer oil itself is heated and becomes heat transformer
Oil；The heat transformer oil for going out the outflow of deep fat solenoid valve control is flow to around the film supplying tube of downward film evaporator, by film supplying tube
The uniform spout hole of portion's surrounding, along falling liquid film inside pipe wall formed it is membranaceous flow down, and with downward film evaporator housing in be enclosed in drop
The low temperature refrigerant medium of membrane tube surrounding loop carries out heat exchange, and its heat is taken away by low temperature refrigerant and itself becomes cold transformator
Oil；
2）Refrigerating Compressor with Inverter is opened, Refrigerating Compressor with Inverter is by the low pressure refrigerant from downward film evaporator refrigerant exit out
Gas compression is into high pressure-temperature cold media gas；Go out Refrigerating Compressor with Inverter high pressure-temperature cold media gas to be cooled in condenser
Low temperature refrigerant liquid；Throttle to the housing of downward film evaporator from condenser low temperature refrigerant liquid warp knuckle stream valve out, it is low
Warm coolant liquid all flashes to low pressure refrigerant gas, low pressure refrigerant gas and quilt after the heat for absorbing a large amount of heat transformer oil
Compress in being evacuated to Refrigerating Compressor with Inverter, coolant media blood circulation is opened with this iterative cycles；
4）After cold transformer oil goes out downward film evaporator tube side outlet pipe, cold oil valve is entered by frequency conversion oil pump Jing and is beaten to transformer body
In, next round cooling circulation is carried out to winding and iron core；
5）The sensing device and control module of opening control system, control module can be according to the fuel level sensors of downward film evaporator
The level height of setting, controls out deep fat electromagnetic valve, to ensure that transformer oil forms film in the film supplying tube of downward film evaporator
Shape is flowed down along falling liquid film inside pipe wall；Control module automatically controls the work of Refrigerating Compressor with Inverter and frequency conversion oil pump according to main transformer oil
Make, when oil temperature is high, control Refrigerating Compressor with Inverter and frequency conversion oil pump are exerted oneself increase, and vice versa, remains main transformer winding
With the optimal value of the oil stream temperature difference.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410402907.0A CN104157401B (en) | 2014-08-18 | 2014-08-18 | Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410402907.0A CN104157401B (en) | 2014-08-18 | 2014-08-18 | Main transformer falling film type heat exchanging device with intelligent frequency conversion function and using method thereof |
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| CN104157401B true CN104157401B (en) | 2017-04-12 |
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| CN106024316A (en) * | 2016-08-09 | 2016-10-12 | 胡启元 | Intelligent heat-radiating transformer |
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| CN102384608A (en) * | 2011-11-11 | 2012-03-21 | 佛山市顺德区高美空调设备有限公司 | Falling-film evaporator for refrigeration system |
| CN102805949A (en) * | 2012-08-17 | 2012-12-05 | 无锡市华立石化工程有限公司 | Efficient falling film evaporator for tangentially feeding materials |
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| CN202692546U (en) * | 2012-07-16 | 2013-01-23 | 佛山市顺德区高美空调设备有限公司 | Falling film type evaporator for refrigeration loop |
| CN202928226U (en) * | 2012-11-30 | 2013-05-08 | 苏州必信空调有限公司 | Refrigerant circulating system |
| CN203379622U (en) * | 2013-06-19 | 2014-01-08 | 上海神农机械有限公司 | Three-overflow distributor applied to falling-film evaporator |
| CN103671189A (en) * | 2013-09-07 | 2014-03-26 | 国家电网公司 | Main transformer radiator draught fan with intelligent frequency converter |
| CN103861303A (en) * | 2014-01-01 | 2014-06-18 | 蔡卫冲 | Falling-film evaporator |
| CN103824677B (en) * | 2014-03-13 | 2016-06-01 | 国家电网公司 | A kind of main transformer winding and oil flow optimum intelligent control system and the control method of the temperature difference |
| CN204010915U (en) * | 2014-08-18 | 2014-12-10 | 国家电网公司 | A kind of main transformer falling film type heat-exchanger rig with intelligent frequency-conversion function |
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| CN102384608A (en) * | 2011-11-11 | 2012-03-21 | 佛山市顺德区高美空调设备有限公司 | Falling-film evaporator for refrigeration system |
| CN102805949A (en) * | 2012-08-17 | 2012-12-05 | 无锡市华立石化工程有限公司 | Efficient falling film evaporator for tangentially feeding materials |
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