CN204375536U - There is the main transformer regeneration respirator of the two microwave heating of photovoltaic conversion - Google Patents
There is the main transformer regeneration respirator of the two microwave heating of photovoltaic conversion Download PDFInfo
- Publication number
- CN204375536U CN204375536U CN201520037733.2U CN201520037733U CN204375536U CN 204375536 U CN204375536 U CN 204375536U CN 201520037733 U CN201520037733 U CN 201520037733U CN 204375536 U CN204375536 U CN 204375536U
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- Prior art keywords
- moisture absorption
- absorption tank
- main transformer
- microwave generator
- photovoltaic
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 230000008929 regeneration Effects 0.000 title claims abstract description 15
- 238000011069 regeneration method Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 87
- 239000003230 hygroscopic agent Substances 0.000 claims abstract description 27
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- 230000000241 respiratory effect Effects 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 235000012736 patent blue V Nutrition 0.000 claims description 6
- 238000003306 harvesting Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000013019 agitation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 8
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model provides a kind of main transformer regeneration respirator with the two microwave heating of photovoltaic conversion, it is characterized in that: comprise microwave heating equipment, lower microwave heating equipment, the first moisture absorption tank, the second moisture absorption tank, three-way pipe and photovoltaic transition electric power system.The device that the utility model provides make full use of this safe, clean, efficient, economy of solar energy, environmental protection the energy as normality work energy.The utility model also utilizes the dry regeneration techniques of two-way microwave heating equipment on-line heating; solve the large-scale respiration apparatus of traditional main transformer need manually change when the saturated inefficacy of hygroscopic agent moisture absorption, and also need in Renewal process exit the heavy watt protective device of main transformer and there is the problems such as major safety risks.Owing to using two-way microwave energy, the hydrone within of hygroscopic agent absorption in large-scale respirator is heated more uniformly by thermal agitation.
Description
Technical field
The utility model relates to a kind of regeneration respirator, particularly has the main transformer regeneration respirator of the two microwave heating of photovoltaic conversion.
Background technology
Main transformer is in operation, and can produce respiration by respiratory siphon and outside air, and as on respiratory siphon, nothing installs respirator, main transformer directly sucks extraneous humid air, more easily makes main transformer make moist especially in rainy day and high humidity weather.Tradition main transformer respiration apparatus is built with discolour silica gel hygroscopic agent; when its hygroscopic agent discolour silica gel moisture absorption is saturated; the hygroscopic agent needing staff to carry qualified drying or the moisture absorption tank installing qualified hygroscopic agent are changed to main transformer scene; in Renewal process, main transformer respiratory siphon directly communicates with ambient atmosphere; main transformer respiratory air flow can be caused to change; the catastrophe failure of the heavy watt malfunction of main transformer Buchholz relay may be caused; therefore traditional main transformer respiration apparatus just can carry out after heavy for a main transformer watt protective device must being exited when changing adsorbent, and disengaging time reaches 3-4 hour.
A heavy watt protection is that main transformer runs one of most important protective device; when there is in contingency the fault producing oil stream or gas shock in main transformer; heavy watt of Buchholz relay can action; main transformer switch is tripped; the further expansion of Accident prevention, now heavy watt as exited, and can not cut off main transformer switch; cause fault spread, even cause the serious consequence that main transformer explodes.Moving back heavy watt protective device need after unit one belongs to chief engineer approval, is operated by operations staff's transformer station's master-control room of making a special trip to a certain place, work consuming, consuming time and expend a lot of.
Another shortcoming of tradition main transformer respiration apparatus is, when changing discolour silica gel, after unloading moisture absorption tank, main transformer respiratory air flow directly communicates with ambient atmosphere, make moisture, moisture easily breathe connecting leg by main transformer to invade in main transformer oil, and change hygroscopic agent and can cause waste, simultaneously also easy contaminated environment.
Summary of the invention
A kind of main transformer regeneration respirator with the two microwave heating of photovoltaic conversion is provided for prior art Problems existing the utility model.
The utility model is by the following technical solutions: the main transformer regeneration respirator with the two microwave heating of photovoltaic conversion, is characterized in that: comprise microwave generator, lower microwave generator, the first moisture absorption tank, the second moisture absorption tank, three-way pipe and electric power system; First port of described three-way pipe is connected with the upper port of described first moisture absorption tank, and the first port of described three-way pipe is provided with the first control valve; The upper port of the second moisture absorption tank described in the second port of described three-way pipe connects, and the second port of described three-way pipe is provided with the second control valve; 3rd port of described three-way pipe is connected with the lower end of the respiratory siphon of main transformer conservator; All hygroscopic agent is housed in described first moisture absorption tank, the second moisture absorption tank; Described upper microwave generator is connected with the top of the first moisture absorption tank, the second moisture absorption tank respectively by waveguide; Described lower microwave generator is connected with the bottom of the first moisture absorption tank, the second moisture absorption tank respectively by waveguide; Described waveguide is equipped with transfer valve; Described upper microwave generator and lower microwave generator are powered by described electric power system; Described electric power system comprises photovoltaic converting system, stand-by power supply and switching device shifter; First of described photovoltaic converting system exports the feeder ear of upper microwave generator described in termination, and second of described photovoltaic converting system exports the feeder ear of lower microwave generator described in termination, one end of switching device shifter described in the control termination of described photovoltaic converting system; First of described stand-by power supply exports the feeder ear of upper microwave generator described in termination, and second of described stand-by power supply exports the feeder ear of lower microwave generator described in termination, the other end of switching device shifter described in the control termination of described stand-by power supply.
In an embodiment of the present utility model, described hygroscopic agent is discolour silica gel, is sky blue, changes pink into after moisture absorption is saturated when it is dry.
In the utility model one embodiment, described photovoltaic converting system comprises solar receiver, photovoltaic converter, energy-storing device and power-supply controller of electric, the output of described solar receiver is connected with the input of described photovoltaic converter, the output of described photovoltaic converter is connected with the input of described accumulator, the output of described accumulator is connected with the input of power-supply controller of electric, and the output of described power-supply controller of electric is connected with the input of described switching device shifter.
In the utility model one embodiment, described solar receiver comprises the turnover solar panel of multi-disc; Every sheet solar panel lower end is provided with axle sleeve, and axle sleeve is placed on the rotating shaft on described energy-storing device; Be provided with steering controller in described energy-storing device, control comparator and PLC microcomputerized controller; Described rotating shaft is controlled to rotate by described steering controller; Described PLC microcomputerized controller stores sun sunlight trace, and carries out real-time tracking by described control comparator to sun sunlight trace; Described comparator controls steering controller according to each solar panel harvest energy size.
In the utility model one embodiment, described switching device shifter is a relay.
Compared with prior art the utility model has the following advantages: make full use of this safety of solar energy, clean, efficiently, economical, the energy of environmental protection is as normality work energy, without the need to changing hygroscopic agent, solve the large-scale respiration apparatus of traditional main transformer to need to exit heavy watt when changing during hygroscopic agent and protect and there is the problems such as potential safety hazard, overcome main transformer respiratory siphon and ambient atmosphere when unloading moisture absorption tank directly to communicate and extraneous moisture moisture is directly sucked by main transformer respiratory air flow and causes the defect of making moist, thus the safe operation of powerful guarantee main transformer, it also avoid simultaneously and to change in large-scale respirator manpower in hygroscopic agent process, the waste of material resources and environmental pollution, due to two microwave generators of designed making, use two-way microwave, the more uniform thermal agitation heating in the hydrone inside that hygroscopic agent is adsorbed, thus heated more uniformly, evaporation, dry, therefore there is the better efficiency of heating surface, use safety, the advantage such as energy-saving and cost-reducing, huge advantage is had compared with the large-scale main transformer respiration apparatus of tradition.
Accompanying drawing explanation
Fig. 1 is anatomical connectivity figure of the present utility model.
Fig. 2 is the structural representation of moisture absorption tank.
Fig. 3 is photovoltaic conversion system structure figure of the present utility model.
Fig. 4 is that solar receiver of the present utility model receives solar energy operating diagram.
Fig. 5 is the main transformer regeneration respirator operation principle block diagram with the two microwave heating of photovoltaic conversion.
Fig. 6 is the non-switching state schematic diagram of waveguide transfer valve of the present utility model.
In figure: the upper microwave generator of 1-, the upper waveguide transfer valve of 2-, the upper waveguide A of 3-, 4-first moisture absorption tank, 5-first by-pass valve control, the upper waveguide B of 6-, 7-second moisture absorption tank, 8-B valve, 9-threeway, 10-main transformer respiratory siphon, 12-moisture absorption tank lubricating cup, 13-lubricating cup inner oil seal, 14-moisture absorption tank pneumostome, 15-aerial respiration gap, 16-filter screen, the special glass cylinder of 17-inner clip shield microwaves wire netting; 18-hygroscopic agent, microwave generator under 20-, waveguide transfer valve under 21-, waveguide A under 22-, waveguide B, 24-solar panel under 23-, 25-steering controller, 26-comparator, 27-electric power system, 28-axle sleeve, 29-rotating shaft.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
The utility model provides a kind of main transformer regeneration respirator with the two microwave heating of photovoltaic conversion, and its anatomical connectivity figure is see Fig. 1.This device comprises microwave generator 1, lower microwave generator 20, first moisture absorption tank 4, second moisture absorption tank 7, three-way pipe 9 and electric power system 27; First port of described three-way pipe 9 is connected with the upper port of described first moisture absorption tank 4, and the first port of described three-way pipe is provided with the first control valve 5; The upper port of the second moisture absorption tank 7 described in the second port of described three-way pipe 9 connects, and the second port of described three-way pipe is provided with the second control valve 8; 3rd port of described three-way pipe is connected with the lower end of the respiratory siphon 10 of main transformer conservator; In described first moisture absorption tank 4, second moisture absorption tank 7, hygroscopic agent 18 is all housed; Described upper microwave generator 1 is connected with the top of the first moisture absorption tank 4, second moisture absorption tank 7 respectively by upper waveguide 3,6; Described lower microwave generator 20 is connected with the bottom of the first moisture absorption tank 4, second moisture absorption tank 7 respectively by lower waveguide 22,23; Described waveguide is equipped with transfer valve; Described upper microwave generator 1 and lower microwave generator 20 are powered by described electric power system 27; Described electric power system 27 comprises photovoltaic converting system, stand-by power supply and switching device shifter; First of described photovoltaic converting system 27 exports the feeder ear of upper microwave generator 1 described in termination, second of described photovoltaic converting system exports the feeder ear of lower microwave generator 20 described in termination, one end of switching device shifter described in the control termination of described photovoltaic converting system; First of described stand-by power supply exports the feeder ear of upper microwave generator 1 described in termination, and second of described stand-by power supply exports the feeder ear of lower microwave generator described in termination, the other end of switching device shifter described in the control termination of described stand-by power supply.In the sufficient situation of illumination, photovoltaic converting system is supplied to two electric energy needed for microwave generator work, and stand-by power supply locates closed condition usually; When meet for a long time overcast and rainy or night time, can switch to stand-by power supply and power.
Fig. 2 is the structural representation of moisture absorption tank.The tank base of the first moisture absorption tank 4 and described second moisture absorption tank 7 all offers a pneumostome 14; The tank base of described first moisture absorption tank 4 and described second moisture absorption tank 7 is all connected with a lubricating cup 11, fills transformer oil in this lubricating cup 11; Described pneumostome 14 lower end is extended with communicating pipe, this communicating pipe lower ending opening stretch in described lubricating cup transformer oil in form oil sealing 13; Be provided with aerial respiration gap 15 between the tank base of described lubricating cup top and described first moisture absorption tank 4 or described second moisture absorption tank 7, suck part moisture and the dust of external air-flow entrained with for filtering main transformer.Accompany the leak special glass cylinder 17 of wire netting of shield microwaves by inside in the middle part of first moisture absorption tank 4, second moisture absorption tank 7 to form; Described first moisture absorption tank 4, second moisture absorption tank 7 tank body lower part is embedded with a filter screen 16, to separate hygroscopic agent and lower waveguide and to form the space of a launched microwave radiation.Preferably, the hygroscopic agent that moisture absorption tank adopts is discolour silica gel 18, is sky blue, changes pink into after moisture absorption is saturated when it is dry.Also other hygroscopic agent can be adopted in other embodiments of the present utility model.
The structure chart of photovoltaic converting system is see Fig. 3.Described photovoltaic converting system comprises solar receiver, photovoltaic converter, energy-storing device and power-supply controller of electric, the output of described solar receiver is connected with the input of described photovoltaic converter, the output of described photovoltaic converter is connected with the input of described accumulator, the output of described accumulator is connected with the input of power-supply controller of electric, and the output of described power-supply controller of electric is connected with the input of described switching device shifter.
Wherein solar receiver receives the structural representation of solar energy see Fig. 4. and described solar receiver comprises the turnover solar panel of multi-disc; Every sheet solar panel 24 lower end is provided with axle sleeve 28, and axle sleeve 28 is placed on the rotating shaft 29 on described energy-storing device; Be provided with steering controller 25 in described energy-storing device, control comparator 26 and PLC microcomputerized controller; Described rotating shaft 29 is controlled to rotate by described steering controller 25; Described PLC microcomputerized controller stores sun sunlight trace, and carries out real-time tracking by described control comparator 26 pairs of sun sunlight trace; Described comparator 26 controls steering controller 25 according to each solar panel harvest energy size.The information that PLC microcomputerized controller stores sun sunlight trace from: in effective sun sunlight trace, due to the rotation of the earth, relative to a certain fixed location, the information such as its longitude and latitude are calculated the trajectory angle at the not sun place in the same time of every day in 1 year, the track of sun position in moment each in 1 year is stored in PLC.
Described in specific embodiment of the utility model, switching device shifter is a relay.Electric shock G2, G3 locking each other of described relay.
The utility model realizes the microwave heating to moisture absorption tank by the switching of waveguide, and the concrete handoff procedure of waveguide is see Fig. 5.Operation principle block diagram of the present invention is see Fig. 6.The using method of the device that the utility model provides comprises the following steps: step S01: open the first control valve 5 and close the second control valve 8, and using the first moisture absorption tank 4 as main transformer respirator, the second moisture absorption tank 7 is as backup breaths device; Step S02: along with the prolongation of main transformer conservator breathing time, in main transformer respirator, hygroscopic agent moisture absorption was lost efficacy, in main transformer respirator, discolour silica gel changes the saturated pink of moisture absorption into from sky blue during drying, now open the second control valve 8, using the second moisture absorption tank 7 as main transformer respirator, keep the second moisture absorption tank 7 unobstructed with main transformer respiratory siphon; Step S03: close the first control valve 5, makes the first breather tank 4 isolate with main transformer respiratory siphon; Open upper and lower microwave generator respectively, in switching, microwave generator and first breathes transfer valve 2 to the K1 position on tank connected waveguide, transfer valve 21 to K3 position on the waveguide that under switching, microwave generator is connected with the first moisture absorption tank 4, make upper and lower microwave generator produce microwave, by waveguide, two-way launched microwave radiant energy carried out to the first moisture absorption tank 4, heat, evaporate after the moisture of hygroscopic agent absorption receives two-way microwave in the first moisture absorption tank, drying; Step S04: during sky blue when hygroscopic agent discolour silica gel in the first moisture absorption tank 4 changes drying into gradually from the pink after moisture absorption of making moist, represent that heat drying is qualified, close upper and lower microwave generator respectively, and the transfer valve on the waveguide between upper and lower microwave generator and the first moisture absorption tank cuts out, using the first moisture absorption tank 4 as dehydrating breather for subsequent use; Step S05: when hygroscopic agent in the second moisture absorption tank 7 lost efficacy, second control valve 8 is closed, described second moisture absorption tank 7 is isolated with described main transformer respiratory siphon, first control valve 5 is opened, using described first moisture absorption tank 4 as described main transformer respirator, keep described first moisture absorption tank 4 unobstructed with described main transformer respiratory siphon; Step S06: open upper and lower microwave generator respectively, transfer valve 2 to K2 position on the waveguide that in switching, microwave generator is connected with the second breather tank 7, transfer valve 21 to K4 position on the waveguide that under switching, microwave generator is connected with the second moisture absorption tank 7, make upper and lower microwave generator produce microwave, by waveguide, two-way launched microwave radiant energy is carried out to the second moisture absorption tank, after in second moisture absorption tank, the moisture of hygroscopic agent absorption receives two-way microwave, its hydrone is heated, evaporate, drying; Step S07: during sky blue when hygroscopic agent discolour silica gel in the second moisture absorption tank changes drying into gradually from the pink after moisture absorption of making moist, represent that heat drying is qualified, close frequency-variable controller, close upper and lower microwave generator respectively, and the transfer valve on the waveguide between upper and lower microwave generator and the second moisture absorption tank cuts out, using the second moisture absorption tank as dehydrating breather for subsequent use; Step S08: when hygroscopic agent moisture absorption in described first moisture absorption tank was lost efficacy, then forward step S02 to; Step S09: upper microwave generator and lower microwave generator are powered by described electric power system, described electric power system comprises photovoltaic converting system, stand-by power supply and switching device shifter, when illumination sufficient photovoltaic converting system voltage is normal, by photovoltaic converting system, upwards microwave generator and lower microwave generator are powered; When overcast and rainy or night for a long time photovoltaic converting system export brownout time trigger described switching device shifter, by stand-by power supply to upwards microwave generator and lower microwave generator are powered.
Using method of the present utility model only for ease of the understanding of the utility model device, the content that non-the utility model will be protected.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. there is the main transformer regeneration respirator of the two microwave heating of photovoltaic conversion, it is characterized in that: comprise microwave generator, lower microwave generator, the first moisture absorption tank, the second moisture absorption tank, three-way pipe and electric power system;
First port of described three-way pipe is connected with the upper port of described first moisture absorption tank, and the first port of described three-way pipe is provided with the first control valve; The upper port of the second moisture absorption tank described in the second port of described three-way pipe connects, and the second port of described three-way pipe is provided with the second control valve; 3rd port of described three-way pipe is connected with the lower end of the respiratory siphon of main transformer conservator;
All hygroscopic agent is housed in described first moisture absorption tank, the second moisture absorption tank;
Described upper microwave generator is connected with the top of the first moisture absorption tank, the second moisture absorption tank respectively by waveguide; Described lower microwave generator is connected with the bottom of the first moisture absorption tank, the second moisture absorption tank respectively by waveguide; Described waveguide is equipped with transfer valve;
Described upper microwave generator and lower microwave generator are powered by described electric power system;
Described electric power system comprises photovoltaic converting system, stand-by power supply and switching device shifter;
First of described photovoltaic converting system exports the feeder ear of upper microwave generator described in termination, and second of described photovoltaic converting system exports the feeder ear of lower microwave generator described in termination, one end of switching device shifter described in the control termination of described photovoltaic converting system;
First of described stand-by power supply exports the feeder ear of upper microwave generator described in termination, and second of described stand-by power supply exports the feeder ear of lower microwave generator described in termination, the other end of switching device shifter described in the control termination of described stand-by power supply.
2. the main transformer regeneration respirator with the two microwave heating of photovoltaic conversion according to claim 1, is characterized in that: described hygroscopic agent is discolour silica gel, is sky blue, changes pink into after moisture absorption is saturated when it is dry.
3. the main transformer regeneration respirator with the two microwave heating of photovoltaic conversion according to claim 1, it is characterized in that: described photovoltaic converting system comprises solar receiver, photovoltaic converter, energy-storing device and power-supply controller of electric, the output of described solar receiver is connected with the input of described photovoltaic converter, the output of described photovoltaic converter is connected with the input of described accumulator, the output of described accumulator is connected with the input of power-supply controller of electric, and the output of described power-supply controller of electric is connected with the input of described switching device shifter.
4. the main transformer regeneration respirator with the two microwave heating of photovoltaic conversion according to claim 3, is characterized in that: described solar receiver comprises the turnover solar panel of multi-disc; Every sheet solar panel lower end is provided with axle sleeve, and axle sleeve is placed on the rotating shaft on described energy-storing device;
Be provided with steering controller in described energy-storing device, control comparator and PLC microcomputerized controller;
Described rotating shaft is controlled to rotate by described steering controller; Described PLC microcomputerized controller stores sun sunlight trace, and carries out real-time tracking by described control comparator to sun sunlight trace; Described comparator controls steering controller according to each solar panel harvest energy size.
5. the main transformer regeneration respirator with the two microwave heating of photovoltaic conversion according to claim 1, is characterized in that: described switching device shifter is a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037733.2U CN204375536U (en) | 2015-01-20 | 2015-01-20 | There is the main transformer regeneration respirator of the two microwave heating of photovoltaic conversion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037733.2U CN204375536U (en) | 2015-01-20 | 2015-01-20 | There is the main transformer regeneration respirator of the two microwave heating of photovoltaic conversion |
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| CN204375536U true CN204375536U (en) | 2015-06-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517705A (en) * | 2015-01-20 | 2015-04-15 | 国家电网公司 | Main transformer regeneration breather with photovoltaic conversion and bidirectional microwave heating functions and use method of breather |
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2015
- 2015-01-20 CN CN201520037733.2U patent/CN204375536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517705A (en) * | 2015-01-20 | 2015-04-15 | 国家电网公司 | Main transformer regeneration breather with photovoltaic conversion and bidirectional microwave heating functions and use method of breather |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20220120 |