CN109631330B - Mutual inductor heating heat preservation gasbag - Google Patents
Mutual inductor heating heat preservation gasbag Download PDFInfo
- Publication number
- CN109631330B CN109631330B CN201811384564.4A CN201811384564A CN109631330B CN 109631330 B CN109631330 B CN 109631330B CN 201811384564 A CN201811384564 A CN 201811384564A CN 109631330 B CN109631330 B CN 109631330B
- Authority
- CN
- China
- Prior art keywords
- air
- air bag
- heating
- transformer
- blowing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 31
- 238000004321 preservation Methods 0.000 title description 2
- 238000007664 blowing Methods 0.000 claims abstract description 17
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910018503 SF6 Inorganic materials 0.000 abstract 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 abstract 1
- 229960000909 sulfur hexafluoride Drugs 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0057—Guiding means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Induction Heating (AREA)
Abstract
The invention discloses a heating and heat-preserving air bag of a transformer, which relates to the field of transformer maintenance devices and aims at SF (sulfur hexafluoride) 6 The technical problem that the voltage transformer is easy to generate condensation under a low temperature state to cause creeping discharge in equipment and finally cause equipment failure is solved by adopting an air bag and a heating and blowing device, wherein the air bag and the heating and blowing device comprise two sets of symmetrical air bags which can be combined into a cylindrical structure; the air bag is of a semicircular structure, an air inlet pipe is arranged at the bottom of the outer side of the air bag, and the heating and air blowing device blows heated air into the air bag through the air inlet pipe; the inner wall of the air bag is provided with a plurality of air outlets; the circular cross section of the air bag is fixedly provided with a magnetic sheet. The heating and blowing devices of the two air bags are continuously electrified and the air bags are inflated, then the two inflated air bag openings correspondingly wrap the mutual inductor and are attracted together through the magnetic sheets, and hot air is blown out from the air outlet to heat the mutual inductor. The scheme has simple structure and low cost, can be compressed and portable, does not contact with the transformer, and effectively avoids electric shock hazard.
Description
Technical Field
The invention relates to the field of transformer maintenance devices, in particular to a transformer heating and heat-preserving air bag.
Background
SF 6 voltage transformer is an electrical equipment widely used in the power industry, SF 6 gas is colorless, odorless, has higher electrical strength and excellent arc extinguishing performance, is an excellent insulating substance, and can generate huge pressure when being discharged in high energy compared with an oil immersed type current transformer, but the influence caused by explosion can be effectively controlled through a pressure release device such as an explosion-proof sheet and the like, so that the use of the gas insulated transformer in a power grid is more and more wide.
Moisture in the SF 6 voltage transformer usually exists in the form of water vapor, moisture condensation occurs when the moisture content reaches 716 mu L/L under the absolute pressure of 0.4MPa at-10 ℃, and moisture condensation occurs when the moisture content reaches 1528 mu L/L at 0 ℃. At lower temperatures, water vapor condenses and adheres to the surface of the insulating member, possibly causing creeping discharge. In severe cold areas, when the micro-water content in the SF 6 transformer is too high, moisture condensation exists, and the risk of creeping discharge is generated in the SF 6 transformer, so that the safety and stability of the equipment are seriously affected.
Disclosure of Invention
The invention provides a transformer heating heat-preserving air bag, which is used for solving the technical problem that the SF 6 voltage transformer is easy to generate condensation in a low-temperature state to cause creeping discharge in equipment and finally cause equipment failure.
In order to solve the problems, the invention adopts the following technical scheme:
a mutual inductor heating and heat preserving air bag comprises two sets of symmetrical air bags which can be combined into a cylindrical structure and a heating and blowing device;
the air bag is of a semicircular structure, an air inlet pipe is arranged at the bottom of the outer side of the air bag, and the heating and blowing device blows heated air into the air bag through the air inlet pipe;
the inner wall of the air bag is provided with a plurality of air outlets;
the cross section of the circular ring of the air bag is fixedly provided with a magnetic sheet;
the longitudinal section of the air bag is a combination of a plurality of splayed shapes.
Preferably, the heating and blowing device is a blower with a hot air function.
Preferably, the cross-sectional area of the air inlet pipe is larger than the sum of the cross-sectional areas of all the air outlets.
Preferably, the air bag is made of an insulating material.
Preferably, the air bag further comprises an upper cover and a lower cover which are of annular sheet structures and are respectively detachably arranged at the upper end and the lower end of the air bag.
When the air bag type transformer is used, the heating and blowing devices of the two air bags are continuously electrified and inflated, then the two inflated air bag openings correspondingly wrap the transformer and are attracted together through the magnetic sheets, and hot air is blown out from the air outlet to heat the transformer. The scheme has simple structure and low cost, can be compressed and is convenient to carry, the heating speed is high, the transformer is not in direct contact with the transformer, and the electric shock danger is effectively avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of an embodiment provided by the present invention;
FIG. 2 is a schematic view of the structure of the embodiments of the present invention when not yet assembled;
fig. 3 is a schematic view of the structure of a single airbag in an embodiment provided by the present invention.
In the drawings, each reference numeral represents: an air bag 1, a heating and blowing device 2, an air inlet pipe 10, an air outlet 11 and a magnetic sheet 12.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The detailed description of the embodiments of the invention, generally described and illustrated in the figures herein, is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 3, a transformer heating and heat preserving air bag comprises two symmetrical sets of air bags 1 which can be combined into a cylindrical structure and a heating and air blowing device 2. The air bag 1 is of a semicircular structure and can stretch and retract along the axial direction, the longitudinal section of the air bag 1 is a combination of a plurality of splayed shapes, an air inlet pipe 10 is arranged at the bottom of the outer side of the air bag 1, and the heating and blowing device 2 blows heated air into the air bag 1 through the air inlet pipe 10. The inner wall of the air bag 1 is provided with a plurality of air outlets 11, and the air outlets 11 are preferably distributed and arranged along the axial direction of the air bag 1. The cross-sectional area of the air inlet pipe 10 is larger than the sum of the cross-sectional areas of all the air outlets 11, so that the air bag does not bulge due to too much air outlet during blowing. The circular cross section of the air bag 1 is fixedly provided with magnetic sheets 12, and the polarities of the magnetic sheets 12 are mutually staggered and fixed, so that each air bag can be mutually attracted when being combined with another air bag. For convenience in carrying and production, the heating blower device 2 can be manufactured by referring to a household blower with a hot air function. In order to ensure the safety of equipment and personnel, the air bag 1 is made of insulating materials to prevent electric shock. In order to enable the hot air to act on the transformer for a longer time, an upper cover and a lower cover which are of annular sheet structures can be arranged and respectively and detachably arranged at the upper end and the lower end of the air bag 1.
When the air bag heating and blowing device is used, firstly, the heating and blowing devices 2 of the two air bags 1 are continuously electrified and the air bags 1 are inflated, then, the two inflated air bags 1 are correspondingly wrapped with the mutual inductor and are attracted together through the magnetic sheet 12, and hot air is blown out from the air outlet 11 to heat the mutual inductor. The scheme has simple structure and low cost, can be compressed and is convenient to carry, the heating speed is high, the transformer is not in direct contact with the transformer, and the electric shock danger is effectively avoided.
Claims (5)
1. The transformer heating and heat-preserving air bag is characterized by comprising two symmetrical sets of air bags (1) which can be combined into a cylindrical structure and a heating and air blowing device (2);
the air bag (1) is of a semicircular structure and can stretch out and draw back along the axial direction, an air inlet pipe (10) is arranged at the bottom of the outer side of the air bag (1), and the heating and air blowing device (2) blows heated air into the air bag (1) through the air inlet pipe (10);
the inner wall of the air bag (1) is provided with a plurality of air outlets (11), and the air outlets (11) are distributed and arranged along the axial direction of the air bag (1);
a magnetic sheet (12) is fixedly arranged on the cross section of the circular ring of the air bag (1);
the longitudinal section of the air bag (1) is a combination of a plurality of splayed shapes.
2. The transformer heating insulating airbag according to claim 1, wherein:
the heating and blowing device (2) is a blower with a hot air function.
3. The transformer heating insulating airbag according to claim 1, wherein:
the cross-sectional area of the air inlet pipe (10) is larger than the sum of the cross-sectional areas of all the air outlets (11).
4. The transformer heating insulating airbag according to claim 1, wherein:
the air bag (1) is made of an insulating material.
5. The transformer heating insulating airbag according to claim 1, wherein: the air bag comprises an air bag body (1), and is characterized by further comprising an upper cover and a lower cover which are of annular sheet structures and are respectively detachably arranged at the upper end and the lower end of the air bag body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384564.4A CN109631330B (en) | 2018-11-20 | 2018-11-20 | Mutual inductor heating heat preservation gasbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384564.4A CN109631330B (en) | 2018-11-20 | 2018-11-20 | Mutual inductor heating heat preservation gasbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109631330A CN109631330A (en) | 2019-04-16 |
| CN109631330B true CN109631330B (en) | 2024-03-15 |
Family
ID=66068542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811384564.4A Active CN109631330B (en) | 2018-11-20 | 2018-11-20 | Mutual inductor heating heat preservation gasbag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109631330B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793196A (en) * | 2019-10-30 | 2020-02-14 | 广西电网有限责任公司电力科学研究院 | Heating device of current transformer |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2134021Y (en) * | 1992-09-28 | 1993-05-19 | 北京贝林电子有限公司(中外合资) | Tube-type microwave heater |
| DE19612565A1 (en) * | 1996-03-29 | 1997-10-02 | Driescher Spezialfab Fritz | Gas-insulated medium voltage switchgear |
| KR101241409B1 (en) * | 2012-11-02 | 2013-03-11 | 주식회사 한솔테크 | Making method of air bag |
| CN104810142A (en) * | 2015-04-27 | 2015-07-29 | 明珠电气有限公司 | Volume-adjustable wind-powered full-seal combined type transformer |
| CN205279636U (en) * | 2016-01-12 | 2016-06-01 | 北京瑞昌隆混凝土有限责任公司 | Electricity air blast drying cabinet |
| CN205681643U (en) * | 2016-06-16 | 2016-11-09 | 国网新疆电力公司检修公司 | The heater processing for 750 kilovolts of GIS air chamber excessive water content |
| CN205749774U (en) * | 2016-01-25 | 2016-11-30 | 广东电网有限责任公司电力科学研究院 | Air bag conservator vacuum extractor and transformer oil paper insulation test system |
| CN106549329A (en) * | 2017-01-10 | 2017-03-29 | 吉林省金冠电气股份有限公司 | Double containment full working scope open air metal enclosed switchgear |
| CN106786111A (en) * | 2016-12-08 | 2017-05-31 | 同济大学 | A kind of general GIS air chamber micro- water treatment heating device of power optimized |
| CN206257911U (en) * | 2016-11-03 | 2017-06-16 | 嘉善天胶装饰材料有限公司 | A kind of new air blast thermostatic drying chamber |
| CN107508153A (en) * | 2017-09-20 | 2017-12-22 | 孙景玉 | A kind of power switch cabinet dehydrating unit |
| CN107665761A (en) * | 2016-07-27 | 2018-02-06 | 国网山东省电力公司经济技术研究院 | Transformer attemperator |
| CN207743023U (en) * | 2017-12-15 | 2018-08-17 | 共青城晟鑫电子有限公司 | A kind of auxiliary device that can help transformer rapid cooling |
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2018
- 2018-11-20 CN CN201811384564.4A patent/CN109631330B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2134021Y (en) * | 1992-09-28 | 1993-05-19 | 北京贝林电子有限公司(中外合资) | Tube-type microwave heater |
| DE19612565A1 (en) * | 1996-03-29 | 1997-10-02 | Driescher Spezialfab Fritz | Gas-insulated medium voltage switchgear |
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| CN205279636U (en) * | 2016-01-12 | 2016-06-01 | 北京瑞昌隆混凝土有限责任公司 | Electricity air blast drying cabinet |
| CN205749774U (en) * | 2016-01-25 | 2016-11-30 | 广东电网有限责任公司电力科学研究院 | Air bag conservator vacuum extractor and transformer oil paper insulation test system |
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| Publication number | Publication date |
|---|---|
| CN109631330A (en) | 2019-04-16 |
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