CN113491930A - Anti-dewing device for enclosed bus - Google Patents
Anti-dewing device for enclosed bus Download PDFInfo
- Publication number
- CN113491930A CN113491930A CN202110567698.5A CN202110567698A CN113491930A CN 113491930 A CN113491930 A CN 113491930A CN 202110567698 A CN202110567698 A CN 202110567698A CN 113491930 A CN113491930 A CN 113491930A
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- Prior art keywords
- pipeline
- communicated
- bus
- air
- branch pipe
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- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000009833 condensation Methods 0.000 claims abstract description 17
- 230000005494 condensation Effects 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 17
- 230000002265 prevention Effects 0.000 abstract 2
- 239000002808 molecular sieve Substances 0.000 description 9
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 9
- 238000007791 dehumidification Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to the technical field of closed bus condensation prevention, and discloses a closed bus condensation prevention device which comprises an integrated air compressor, wherein the left side of the integrated air compressor is communicated with one end of a first pipeline, the left side of the first pipeline is communicated with a second pipeline, the left side of the second pipeline is communicated with an auxiliary heating accessory, the left side of the auxiliary heating accessory is communicated with a third pipeline, the top of the third pipeline is communicated with a sampler, and the top of the sampler is communicated with a fourth pipeline. The invention intelligently identifies and selects a proper operation mode according to the environment temperature and the return air humidity: after the function is selected to be in an automatic mode, firstly, the bus enters a first wheel to be inflated, if the air tightness performance of the phase-separated bus is detected to be poor and cannot reach the upper limit, the bus is always in a first wheel inflation state, air is continuously supplied to the interior of the bus, and positive pressure is ensured; and after the air tightness is detected to be qualified, automatically comparing the ambient temperature with the return air dew point temperature, and when the difference value between the ambient temperature and the return air dew point temperature is greater than a set value, operating the system in a pressure circulation mode.
Description
Technical Field
The invention relates to the technical field of anti-condensation of a closed bus, in particular to an anti-condensation device of a closed bus.
Background
The enclosed bus is a bus system composed of metal plate (steel plate or aluminum plate) as protective shell, conducting bar, insulating material and related accessories, including isolated phase enclosed bus, common box (including common isolated phase) enclosed bus and cable bus, widely used as lead of power plant, substation, industry and civil power supply, mainly composed of bus conductor, supporting insulator and protective shielding shell, both conductor and shell are in aluminum tube structure. In addition, the enclosed bus adopts a micro-positive pressure device, so that the insulator is prevented from dewing and being affected with damp, and the safety and reliability of operation are improved.
The sealed bus is at the operation in-process, often faces a great deal of factor influences such as the shake of unit, the change of the inside and outside difference in temperature of generating line, civil engineering foundation's displacement, sealed ageing, results in sealed generating line original seal structure to suffer destruction, and the inside and outside air free circulation of generating line is replaced, and inside dust, impurity, charged particle, water smoke etc. in the outside air will invade the generating line, cause pollution and dewfall to the generating line is inside.
Disclosure of Invention
The invention aims to provide an anti-condensation device for a closed bus, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a closed bus anti-condensation device comprises an integrated air compressor, wherein the left side of the integrated air compressor is communicated with one end of a first pipeline, the left side of the first pipeline is communicated with a second pipeline, the left side of the second pipeline is communicated with an auxiliary heating accessory, the left side of the auxiliary heating accessory is communicated with a third pipeline, the top of the third pipeline is communicated with a sampler, the top of the sampler is communicated with a fourth pipeline, the right side of the fourth pipeline is communicated with a first branch pipe, the right side of the first branch pipe is respectively communicated with an A-phase bus and a C-phase bus, the right sides of the A-phase bus and the C-phase bus are communicated with a second branch pipe, the middle part of the left side of the second branch pipe is communicated with a B-phase bus, the right side of the bottom of the B-phase bus is respectively communicated with one end of a fifth pipeline and one end of a sixth pipeline, and the other ends of the fifth pipeline and the sixth pipeline are communicated with an air return pressure tank and an air dew point tank, the left side of the air return dew point tank is communicated with a seventh pipeline, and the left side of the seventh pipeline is communicated with an integrated air compressor.
In a preferred embodiment of the present invention, the top of the first pipeline is communicated with a third branch pipe, the left and right sides of the bottom of the third branch pipe are communicated with a drying tower, and the bottom of the drying tower is communicated with a fourth branch pipe.
In a preferred embodiment of the present invention, electromagnetic valves are communicated between the first, second, third, fourth, fifth, sixth, seventh and eighth conduits.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention intelligently identifies and selects a proper operation mode according to the environment temperature and the return air humidity: after the function is selected to be in an automatic mode, firstly, the bus enters a first wheel to be inflated, if the air tightness performance of the phase-separated bus is detected to be poor and cannot reach the upper limit, the bus is always in a first wheel inflation state, air is continuously supplied to the interior of the bus, and positive pressure is ensured; and after the air tightness is detected to be qualified, automatically comparing the ambient temperature with the return air dew point temperature, and when the difference value between the ambient temperature and the return air dew point temperature is greater than a set value, operating the system in a pressure circulation mode.
2. The conventional micro-positive pressure or anti-condensation has no dehumidification protection function; according to the equipment, after the humidity reaches a preset value, the equipment automatically enters a dehumidification mode, and automatically exits after the humidity is qualified. After entering a dehumidification mode, closing an air inlet valve, starting the molecular sieve to run, and continuously circulating the A, B drying tower for self-washing and drying; and (4) the system exits the dehumidification mode until the humidity value is reduced to the lower limit of the humidity, and automatically enters the corresponding operation mode according to the current operation state.
3. The invention is provided with a multiple drying system; condenser drying, filter drying, molecular sieve drying and auxiliary heater drying. The condenser is used for primary drying, water in the air source is condensed out by a cooling condensation principle, and the dew point reaches 2-10 ℃; impurities and vapor molecules above 0.01um are further filtered out through a filter; further absorbing and dehumidifying by a molecular sieve, so that the dew point can reach-40 ℃; and finally, the auxiliary heater is used for heating, so that the temperature of the air source is increased, the dew condensation temperature of the air source is further reduced, and the air source can be prevented from dew condensation in extremely humid and cold environments.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of the overall flow structure of the anti-condensation device for the enclosed bus according to the present invention.
In the figure: 1. an integrated air compressor; 2. a first conduit; 3. a third bifurcated pipe; 4. a drying tower; 5. a second conduit; 6. an auxiliary heat accessory; 7. a third pipeline; 8. a sampler; 9. a fourth conduit; 10. a phase A phase isolated bus; 11. a phase C isolated phase bus; 12. a phase B isolated phase bus; 13. a fifth pipeline; 14. a sixth pipeline; 15. a return air pressure tank; 16. a second furcation tube; 17. a seventh pipe; 18. a return air dew point tank; 19. a first furcation tube; 20. a fourth furcation tube.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a technical solution: a closed bus anti-condensation device comprises an integrated air compressor 1, wherein the left side of the integrated air compressor 1 is communicated with one end of a first pipeline 2, the left side of the first pipeline 2 is communicated with a second pipeline 5, the left side of the second pipeline 5 is communicated with an auxiliary heating accessory 6, the left side of the auxiliary heating accessory 6 is communicated with a third pipeline 7, the top of the third pipeline 7 is communicated with a sampler 8, the top of the sampler 8 is communicated with a fourth pipeline 9, the right side of the fourth pipeline 9 is communicated with a first branch pipe 19, the right side of the first branch pipe 19 is respectively communicated with an A-phase bus 10 and a C-phase bus 11, the right sides of the A-phase bus 10 and the C-phase bus 11 are communicated with a second branch pipe 16, the left middle part of the second branch pipe 16 is communicated with a B-phase bus 12, the bottom and the right side of the B-phase bus 12 are respectively communicated with one ends of a fifth pipeline 13 and a sixth pipeline 14, the other ends of the fifth pipeline 13 and the sixth pipeline 14 are communicated with an air return pressure tank 15 and an air return dew point tank 18, the left side of the air return dew point tank 18 is communicated with a seventh pipeline 17, and the left side of the seventh pipeline 17 is communicated with the integrated air compressor 1.
It should be noted that, first wheel inflation is performed, the manual/automatic knob is turned to an automatic position, the start button (or remote start) is pressed to start the device, the QV1 pneumatic valve is opened, at this time, the QV2 and QV3 pneumatic valves are closed, and the first wheel inflation indicator lamp is turned on; the return air pressure rises, the QV1 pneumatic valve is kept open and unchanged, the QV2 pneumatic valve and the QV3 pneumatic valve are kept closed and unchanged, and the device is continuously inflated; when the pressure reaches a set upper limit value (the upper limit value is set on a parameter setting page and is 2500Pa default when leaving a factory), the pneumatic valves of the QV1, the QV2 and the QV3 are closed, the first wheel is inflated, and meanwhile, if the air compressor is used as an air source, the plant air is put into a brake-off state, the molecular sieve starts to operate, and the air compressor starts to operate. If it is in combined floodgate state to detect the auxiliary heating input, according to the touch-sensitive screen function selection, the auxiliary heating function begins to put into operation, and return-air pressure reaches the upper limit, and V1 solenoid valve closes, and detection pressure has the process of time delay, so V1 closes back return-air pressure and can continue to rise certain numerical value, and pressure is greater than the upper limit value this moment, and the solenoid valve state is: the electromagnetic valves of V1 and V2 are closed, the electromagnetic valve of V3 is opened, and when the pressure value is reduced to be lower than the upper limit value, the electromagnetic valve of V2 is opened;
in the pressure circulation mode, after the first wheel is inflated, the system automatically selects the running state according to the conditions of the environment temperature and the dew point temperature. When the difference value between the two is larger than a set value (the set value is set on a parameter page, and the factory default value is 5), the system operates according to a pressure circulation mode, a pressure circulation indicator lamp is turned on, the QV1 valve is closed at the moment, along with pressure reduction, when the pressure value reaches a lower limit, the QV1 and the QV2 electromagnetic valves are opened, the equipment inflates air to a bus, and the pressure rises; when the pressure reaches the upper limit, the QV1 and the QV2 electromagnetic valves are closed, the equipment stops inflating the interior of the bus, the pressure begins to drop until the lower limit, and the circulation is performed in sequence;
in the circulation mode, after the first wheel inflation is finished, the system automatically selects the running state according to the conditions of the environment temperature and the dew point temperature. When the difference value between the two values is smaller than a set value (the set value is set on a parameter page, and the factory default value is 5), the system operates according to a dehumidification cycle mode, the cycle indicator lamp is turned on, and at the moment, the QV1 and the QV2 pneumatic valves are turned on; the system is timed according to the set time, the set time is reached or the return air pressure reaches the set upper limit value of the pressure, the QV1 and the QV2 electromagnetic valves are closed, and the system enters a circulation holding state; the system is timed according to the set cycle time, and starts to enter the cycle inflation timing after reaching the set time, and the cycle inflation timing is repeated in sequence;
in the dehumidification mode, the manual/automatic knob is dialed to an automatic position, and when the humidity sensor of the air inlet loop detects that the humidity is greater than a set humidity upper limit value, the system enters the dehumidification mode. At the moment, the QV1 pneumatic valve is closed, the molecular sieve is started to operate, and the A, B tower is continuously circulated for self-washing and drying; until the humidity value is reduced to the lower limit of the humidity, the system exits the dehumidification mode and automatically enters a corresponding operation mode according to the current operation state;
in the manual mode, the manual/automatic knob is toggled to a manual position and the system enters a manual operating state. At the moment, the QV1 valve is closed, and as the pressure drops, when the pressure value reaches the lower limit, the QV1 and QV2 electromagnetic valves are opened, the equipment inflates the bus, and the pressure rises; when the pressure reaches the upper limit, the QV1 and the QV2 electromagnetic valves are closed, the equipment stops inflating the interior of the bus, the pressure begins to drop until the lower limit, and the circulation is performed in sequence;
after the molecular sieve operates, setting the time input in the molecular sieve according to the parameters, and circularly supplying gas to the tower A and the tower B; the air inlet valve QV4 of tower A and the air outlet valve QV7 of tower B work simultaneously, and air enters tower A from the air inlet QV4, and most of the dried air enters the bus from the air outlet, and a small part of the dried air enters tower B through the regeneration valve SV7, and the moisture in tower B is discharged through the air outlet valve QV7 of tower B. When the set time is reached, the electromagnetic valves are switched. The air inlet valve QV5 of tower B is opened, the air outlet valve QV6 of tower A is opened, at the moment, air enters tower B from the air inlet QV5, most of the dried air enters the bus from the air outlet, a small part of the dried air enters tower A through the regeneration valve SV7, and the moisture in tower A is discharged through the air outlet valve QV6 of tower A. The gas is circulated, so that the dryness of the gas injected into the bus is ensured, and meanwhile, moisture is removed and the gas is recycled;
auxiliary heating operation, namely entering a functional state page of the touch screen after an auxiliary heating input button is closed, and selecting auxiliary heating 1 input, auxiliary heating 2 input or auxiliary heating 1 and auxiliary heating 2 input simultaneously; the heater is electrified for heating, and when the temperature in the air inlet pipe rises to the upper limb and the lower limb, or the QV1 air inlet valve is closed, the heating is stopped; when the temperature is reduced to the lower temperature limit value and the QV1 air inlet valve is opened, the auxiliary heat starts to heat;
the plant gas is put into use, and the molecular sieve quits operation under the condition that the plant gas is used as a gas source, and the following operations are required at the moment: SV3 is opened → SV4 is closed → SV5 is closed → SV6 is opened → SV8 is closed → plant gas input button is put in, QF1 air switch is closed, and the air compressor and the molecular sieve are stopped.
In this embodiment, referring to fig. 1, the top of the first pipeline 2 is communicated with a third branch pipe 3, the left and right sides of the bottom of the third branch pipe 3 are communicated with a drying tower 4, and the bottom of the drying tower 4 is communicated with a fourth branch pipe 20.
In this embodiment, referring to fig. 1, electromagnetic valves are respectively communicated between the first pipeline 2, the second pipeline 5, the third pipeline 7, the fourth pipeline 9, the fifth pipeline 13, the sixth pipeline 14 and the seventh pipeline 17.
When the anti-condensation device for the enclosed bus is used, it needs to be explained that the anti-condensation device for the enclosed bus comprises an integrated air compressor 1; 2. a first conduit; 3. a third bifurcated pipe; 4. a drying tower; 5. a second conduit; 6. an auxiliary heat accessory; 7. a third pipeline; 8. a sampler; 9. a fourth conduit; 10. a phase A phase isolated bus; 11. a phase C isolated phase bus; 12. a phase B isolated phase bus; 13. a fifth pipeline; 14. a sixth pipeline; 15. a return air pressure tank; 16. a second furcation tube; 17. a seventh pipe; 18. a return air dew point tank; 19. a first furcation tube; 20. the fourth furcation tube, components are all common standard components or components known to those skilled in the art, and the structure and principle thereof are known to those skilled in the art through technical manuals or through routine experimentation.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The utility model provides a closed bus anti-condensation device, includes integral type air compressor machine (1), its characterized in that: the integrated air compressor is characterized in that the left side of the integrated air compressor (1) is communicated with one end of a first pipeline (2), the left side of the first pipeline (2) is communicated with a second pipeline (5), the left side of the second pipeline (5) is communicated with an auxiliary heating accessory (6), the left side of the auxiliary heating accessory (6) is communicated with a third pipeline (7), the top of the third pipeline (7) is communicated with a sampler (8), the top of the sampler (8) is communicated with a fourth pipeline (9), the right side of the fourth pipeline (9) is communicated with a first branch pipe (19), the right side of the first branch pipe (19) is respectively communicated with an A separated phase bus (10) and a C separated phase bus (11), the right sides of the A separated phase bus (10) and the C separated phase bus (11) are communicated with a second branch pipe (16), and the middle part of the left side of the second branch pipe (16) is communicated with a B separated phase bus (12), the B-phase isolated phase bus (12) bottom right side is respectively communicated with one end of a fifth pipeline (13) and one end of a sixth pipeline (14), the other ends of the fifth pipeline (13) and the sixth pipeline (14) are communicated with an air return pressure tank (15) and an air return dew point tank (18), the left side of the air return dew point tank (18) is communicated with a seventh pipeline (17), and the left side of the seventh pipeline (17) is communicated with an integrated air compressor (1).
2. The busbar moisture condensation preventing device according to claim 1, wherein: the top of the first pipeline (2) is communicated with a third branch pipe (3), the left side and the right side of the bottom of the third branch pipe (3) are communicated with a drying tower (4), and the bottom of the drying tower (4) is communicated with a fourth branch pipe (20).
3. The busbar moisture condensation preventing device according to claim 1, wherein: the electromagnetic valves are communicated among the first pipeline (2), the second pipeline (5), the third pipeline (7), the fourth pipeline (9), the fifth pipeline (13), the sixth pipeline (14) and the seventh pipeline (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110567698.5A CN113491930A (en) | 2021-05-24 | 2021-05-24 | Anti-dewing device for enclosed bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110567698.5A CN113491930A (en) | 2021-05-24 | 2021-05-24 | Anti-dewing device for enclosed bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113491930A true CN113491930A (en) | 2021-10-12 |
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ID=77997290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110567698.5A Pending CN113491930A (en) | 2021-05-24 | 2021-05-24 | Anti-dewing device for enclosed bus |
Country Status (1)
| Country | Link |
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| CN (1) | CN113491930A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009189182A (en) * | 2008-02-07 | 2009-08-20 | Mitsubishi Electric Corp | Switching device |
| CN102830738A (en) * | 2012-09-12 | 2012-12-19 | 江苏大全封闭母线有限公司 | Device for preventing moisture condensation of closed bus |
| CN105322486A (en) * | 2015-10-15 | 2016-02-10 | 山东达驰阿尔发电气有限公司 | Air circulating drying device with enclosed busbar |
| CN107491108A (en) * | 2017-10-21 | 2017-12-19 | 通化名成电瓷电器有限公司 | Intelligent micro-positive pressure of enclosed busbar control system |
| CN206894122U (en) * | 2017-04-21 | 2018-01-16 | 北京首钢国际工程技术有限公司 | A kind of anti-condensation device of enclosed busbar |
| CN210041245U (en) * | 2019-07-11 | 2020-02-07 | 山西大唐国际临汾热电有限责任公司 | Phase-isolated enclosed bus micro-positive pressure system |
-
2021
- 2021-05-24 CN CN202110567698.5A patent/CN113491930A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009189182A (en) * | 2008-02-07 | 2009-08-20 | Mitsubishi Electric Corp | Switching device |
| CN102830738A (en) * | 2012-09-12 | 2012-12-19 | 江苏大全封闭母线有限公司 | Device for preventing moisture condensation of closed bus |
| CN105322486A (en) * | 2015-10-15 | 2016-02-10 | 山东达驰阿尔发电气有限公司 | Air circulating drying device with enclosed busbar |
| CN206894122U (en) * | 2017-04-21 | 2018-01-16 | 北京首钢国际工程技术有限公司 | A kind of anti-condensation device of enclosed busbar |
| CN107491108A (en) * | 2017-10-21 | 2017-12-19 | 通化名成电瓷电器有限公司 | Intelligent micro-positive pressure of enclosed busbar control system |
| CN210041245U (en) * | 2019-07-11 | 2020-02-07 | 山西大唐国际临汾热电有限责任公司 | Phase-isolated enclosed bus micro-positive pressure system |
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Application publication date: 20211012 |
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