CN204463993U - There is the main transformer regeneration respirator of the two-way microwave heating of variable frequency control - Google Patents
There is the main transformer regeneration respirator of the two-way microwave heating of variable frequency control Download PDFInfo
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- CN204463993U CN204463993U CN201520037727.7U CN201520037727U CN204463993U CN 204463993 U CN204463993 U CN 204463993U CN 201520037727 U CN201520037727 U CN 201520037727U CN 204463993 U CN204463993 U CN 204463993U
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- moisture absorption
- absorption tank
- main transformer
- microwave
- tank
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 15
- 230000008929 regeneration Effects 0.000 title claims abstract description 14
- 238000011069 regeneration method Methods 0.000 title claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 129
- 239000003230 hygroscopic agent Substances 0.000 claims abstract description 30
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 12
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- 230000000241 respiratory effect Effects 0.000 claims description 17
- 230000001050 lubricating effect Effects 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000741 silica gel Substances 0.000 claims description 10
- 229910002027 silica gel Inorganic materials 0.000 claims description 10
- 235000012736 patent blue V Nutrition 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 235000015927 pasta Nutrition 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Drying Of Gases (AREA)
Abstract
There is provided the respirator of the main transformer regeneration with variable frequency control two-way microwave heating at the utility model, it is characterized in that: comprise frequency converter controller, up-conversion microwave heating equipment, down-conversion microwave heating equipment, the first moisture absorption tank, the second moisture absorption tank, three-way pipe, the first humidity sensor and the second humidity sensor.Utilize two-way variable frequency microwave heat drying regeneration techniques; 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.Use frequency-variable controller, the degree can made moist according to hygroscopic agent moisture absorption, control the frequency of microwave generator launched microwave, make the huge advantage such as this respirator is even, efficiency is high, use safety.
Description
Technical field
The utility model relates to a kind of regeneration respirator, is specifically related to a kind of main transformer regeneration respirator with the two-way microwave heating of variable frequency control.
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
The purpose of this utility model is to provide a kind of main transformer regeneration respirator with the two-way microwave heating of variable frequency control.
The utility model realizes by the following technical solutions: the main transformer regeneration respirator with the two-way microwave heating of variable frequency control, is characterized in that: comprise frequency converter controller, upper microwave generator, lower microwave generator, the first moisture absorption tank, the second moisture absorption tank, three-way pipe, the first humidity sensor and the second humidity sensor; 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 by external 220 volts of Power supplies; Described first humidity sensor is arranged in the first moisture absorption tank, and described second humidity sensor is arranged in the second moisture absorption tank; The first input end of described frequency-variable controller is connected with the output of the first humidity sensor; Second input of described frequency-variable controller is connected with the output of the second humidity sensor; First control output end of described frequency-variable controller is connected with upper microwave generator; Second control output end of described frequency-variable controller is connected with lower microwave generator.
In the utility model one embodiment, the tank base of described first moisture absorption tank and described second moisture absorption tank all offers a pneumostome; The tank base of described first moisture absorption tank and described second moisture absorption tank is all connected with a lubricating cup, fills transformer oil in this lubricating cup; Described pneumostome lower end is extended with communicating pipe, this communicating pipe lower ending opening stretch in described lubricating cup transformer oil in form oil sealing; Be provided with aerial respiration gap between the tank base of described lubricating cup top and described first moisture absorption tank or described second moisture absorption tank, suck part moisture and the dust of external air-flow entrained with for filtering main transformer.
In the utility model one embodiment, described first moisture absorption tank, the second moisture absorption tank are as not absorbing microwave and the material manufacture that can prevent microwave from leaking, and accompany the leak special glass cylinder of wire netting of shield microwaves form in the middle part of described first moisture absorption tank, the second moisture absorption tank by inside; Described first moisture absorption tank, the second moisture absorption tank bottom are embedded with a filter screen, to separate hygroscopic agent and lower waveguide and to form the space of a launched microwave radiation.
In the utility model one embodiment, described hygroscopic agent is discolour silica gel, is sky blue, changes pink into after moisture absorption is saturated when it is dry.
Compared with prior art the utility model has the following advantages: without the need to changing hygroscopic agent, and solving the large-scale respiration apparatus of traditional main transformer needs to exit heavy watt and protect and there is the problems such as potential safety hazard during hygroscopic agent when changing; Use frequency-variable controller, the degree can made moist according to hygroscopic agent moisture absorption, control the frequency of microwave generator launched microwave, when in moisture absorption tank, hygroscopic agent moisture absorption is made moist serious, frequency-variable controller is opened greatly, and the frequency controlling microwave generator raises, and increases two-way microwave energy, when hygroscopic agent moisture absorption is made moist less, reduce the frequency of microwave generator; Adopt two-way microwave generator, use two-way microwave, the more uniform thermal agitation heating in the hydrone inside that hygroscopic agent is adsorbed, thus heated more uniformly, evaporate, drying.
Accompanying drawing explanation
Fig. 1 is primary structure connection layout of the present utility model.
Fig. 2 is the primary structure figure of the utility model moisture absorption tank.
Fig. 3 is the non-switching state schematic diagram of waveguide transfer valve of the present invention.
Fig. 4 is operation principle block diagram of the present invention.
In figure: the upper microwave generator of 1-, the upper waveguide transfer valve of 2-, the upper waveguide 1 of 3-, 4-first moisture absorption tank, 5-first by-pass valve control, the upper waveguide 2 of 6-, 7-second moisture absorption tank, 8-second by-pass valve control, 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-discolour silica gel, microwave generator under 20-, waveguide transfer valve under 21-, waveguide 2,24-first humidity sensor under waveguide 1,23-under 22-, 25-second humidity sensor, 26-frequency converter controller.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
During main transformer normally runs, its conservator pasta varies with temperature and expands with heat and contract with cold, thus produces respiration, to balance the change of pressure on main transformer conservator pasta; Transformer oil respiratory air flow in main transformer conservator, the moisture absorption tank installed by respiratory siphon respiratory siphon lower end and ambient atmosphere are breathed; When transformer oil pasta in main transformer conservator raises, exhalation air, on the contrary suck air.But the hygroscopic agent in respiratory siphon is changed also can bring series of problems.
Therefore the utility model provides a kind of main transformer regeneration respirator with the two-way microwave heating of variable frequency control.The primary structure figure of regeneration respirator of the present utility model is see Fig. 1, and this respirator comprises frequency converter controller 26, upper microwave generator 1, lower microwave generator 20, first moisture absorption tank 4, second moisture absorption tank 7, three-way pipe 9, first humidity sensor 24 and the second humidity sensor 25; 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 9 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 9 is provided with the second control valve 8; 3rd port of described three-way pipe 9 is connected with the lower end of the respiratory siphon 10 of main transformer conservator; All hygroscopic agent is housed in described first moisture absorption tank 4, second moisture absorption tank 7; 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 and lower microwave generator are by external 220 volts of Power supplies; Described first humidity sensor 24 is arranged in the first moisture absorption tank, and described second humidity sensor 25 is arranged in the second moisture absorption tank 7; The first input end of described frequency-variable controller is connected with the output of the first humidity sensor 24; Second input of described frequency-variable controller is connected with the output of the second humidity sensor 25; First control output end of described frequency-variable controller 26 is connected with upper microwave generator 1; Second control output end of described frequency-variable controller is connected with lower microwave generator 20.
In the utility model one embodiment, the tank base of described 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.
In the utility model one embodiment, described first moisture absorption tank 4, second moisture absorption tank 7 is as not absorbing microwave and the material manufacture that can prevent microwave from leaking, and accompanies the leak special glass cylinder 17 of wire netting of shield microwaves form in the middle part of described first moisture absorption tank 4, second moisture absorption tank 7 by inside; 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.
In the utility model one embodiment, described hygroscopic agent is discolour silica gel 18, is sky blue, changes pink into after moisture absorption is saturated when it is dry.
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. 3.Operation principle block diagram of the present utility model is see Fig. 4.The practical approach of this device comprises the following steps: step S01: open the first control valve and close the second control valve, and using the first moisture absorption tank as main transformer respirator, the second moisture absorption tank 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, using the second moisture absorption tank as main transformer respirator, keep the second moisture absorption tank and main transformer respiratory siphon unobstructed; Step S03: close the first control valve, makes the first breather tank and main transformer respiratory siphon isolate; 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, heat, evaporate after the moisture of hygroscopic agent absorption receives two-way microwave in the first moisture absorption tank, drying; Moisture signal in first moisture absorption tank is sent to frequency-variable controller by the step S04: the first humidity sensor, humidity in first moisture absorption tank is compared with the threshold value pre-set in frequency-variable controller, if the humidity in the first moisture absorption tank is greater than this threshold value, increase the microwave frequency controlling microwave generator, increase two-way microwave energy, if the humidity in the first moisture absorption tank is less than this threshold value, reduces the microwave frequency of microwave generator, reduce two-way microwave energy; Step S04: during sky blue when hygroscopic agent discolour silica gel in the first 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 first moisture absorption tank cuts out, using the first moisture absorption tank as dehydrating breather for subsequent use; Step S06: when hygroscopic agent in the second moisture absorption tank lost efficacy, second control valve is closed, described second moisture absorption tank and described main transformer respiratory siphon are isolated, first control valve is opened, using described first moisture absorption tank as described main transformer respirator, keep described first moisture absorption tank and described main transformer respiratory siphon unobstructed; Step S07: 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; Moisture signal in second moisture absorption tank is sent to frequency-variable controller by the step S08: the second humidity sensor, humidity in second moisture absorption tank is compared with the threshold value pre-set in frequency-variable controller, if the humidity in the second moisture absorption tank is greater than this threshold value, increase the microwave frequency controlling microwave generator, increase two-way microwave energy, if the humidity in the second moisture absorption tank is less than this threshold value, reduces the microwave frequency of microwave generator, reduce two-way microwave energy; Step S09: 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; S010: when hygroscopic agent moisture absorption in described first moisture absorption tank was lost efficacy, then forward step S02 to.
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 (4)
1. there is the main transformer regeneration respirator of the two-way microwave heating of variable frequency control, it is characterized in that: comprise frequency converter controller, upper microwave generator, lower microwave generator, the first moisture absorption tank, the second moisture absorption tank, three-way pipe, the first humidity sensor and the second humidity sensor;
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 by external 220 volts of Power supplies;
Described first humidity sensor is arranged in the first moisture absorption tank, and described second humidity sensor is arranged in the second moisture absorption tank;
The first input end of described frequency-variable controller is connected with the output of the first humidity sensor; Second input of described frequency-variable controller is connected with the output of the second humidity sensor; First control output end of described frequency-variable controller is connected with upper microwave generator; Second control output end of described frequency-variable controller is connected with lower microwave generator.
2. the main transformer regeneration respirator with the two-way microwave heating of variable frequency control 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-way microwave heating of variable frequency control according to claim 1, is characterized in that: the tank base of described first moisture absorption tank and described second moisture absorption tank all offers a pneumostome; The tank base of described first moisture absorption tank and described second moisture absorption tank is all connected with a lubricating cup, fills transformer oil in this lubricating cup; Described pneumostome lower end is extended with communicating pipe, this communicating pipe lower ending opening stretch in described lubricating cup transformer oil in form oil sealing; Be provided with aerial respiration gap between the tank base of described lubricating cup top and described first moisture absorption tank or described second moisture absorption tank, suck part moisture and the dust of external air-flow entrained with for filtering main transformer.
4. the main transformer regeneration respirator with the two-way microwave heating of variable frequency control according to claim 1, it is characterized in that: described first moisture absorption tank, the second moisture absorption tank are and do not absorb microwave and the material manufacture that can prevent microwave from leaking, accompany the leak glass infuser of wire netting of shield microwaves by inside in the middle part of described first moisture absorption tank, the second moisture absorption tank and form; Described first moisture absorption tank, the second moisture absorption tank bottom are embedded with a filter screen, to separate hygroscopic agent and lower waveguide and to form the space of a launched microwave radiation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037727.7U CN204463993U (en) | 2015-01-20 | 2015-01-20 | There is the main transformer regeneration respirator of the two-way microwave heating of variable frequency control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037727.7U CN204463993U (en) | 2015-01-20 | 2015-01-20 | There is the main transformer regeneration respirator of the two-way microwave heating of variable frequency control |
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| CN204463993U true CN204463993U (en) | 2015-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517706A (en) * | 2015-01-20 | 2015-04-15 | 国家电网公司 | Main transformer regeneration breather with frequency conversion control and bidirectional microwave heating functions and use method of breather |
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2015
- 2015-01-20 CN CN201520037727.7U patent/CN204463993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517706A (en) * | 2015-01-20 | 2015-04-15 | 国家电网公司 | Main transformer regeneration breather with frequency conversion control and bidirectional microwave heating functions and use method of breather |
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