CN109087786B - Respirator for transformer and silica gel regeneration method in respirator - Google Patents
Respirator for transformer and silica gel regeneration method in respirator Download PDFInfo
- Publication number
- CN109087786B CN109087786B CN201810918165.5A CN201810918165A CN109087786B CN 109087786 B CN109087786 B CN 109087786B CN 201810918165 A CN201810918165 A CN 201810918165A CN 109087786 B CN109087786 B CN 109087786B
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- silica gel
- gel tank
- temperature
- electric heating
- respirator
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3433—Regenerating or reactivating of sorbents or filter aids other than those covered by B01J20/3408 - B01J20/3425
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention relates to a breather for a transformer and a silica gel regeneration method in the breather, wherein the breather comprises a glass silica gel tank, a connecting flange for connecting a conservator is fixedly arranged at the upper end of the glass silica gel tank, a lower connecting piece is fixedly arranged at the lower end of the glass silica gel tank, and an oil seal cup is fixedly connected at the lower end of the lower connecting piece; a hollow metal rod vertically and fixedly penetrates through the glass silica gel tank, a plurality of through holes are formed in the metal rod, and a plurality of electric heating plates are uniformly and fixedly arranged on the outer wall of the metal rod; a hollow connecting rod penetrates into the center of the lower connecting piece from the outer side wall of the lower connecting piece and is communicated with the metal rod; the glass silica gel tank is internally provided with a temperature and humidity sensor for sensing temperature and humidity, the outer end of the glass silica gel tank is provided with a controller, and each electric heating sheet and the temperature and humidity sensor are electrically connected with the controller.
Description
Technical Field
The invention relates to a breather for a transformer and a silica gel regeneration method in the breather, and belongs to the technical field of transformers.
Background
The transformer is very important electrical equipment in a power system, the oil level in the transformer is increased or reduced along with the change of temperature and load in operation, the oil reservoir tank is used as a safety accessory of the transformer, a fully-closed structure is adopted, the inside of the transformer is kept in a normal pressure state when the oil level is increased or reduced, in order to prevent the transformer oil in the oil reservoir tank or air at the upper part of a capsule seal from directly contacting with the atmosphere, the degradation speed of the transformer oil is slowed down, the pollution of the air to insulating oil is prevented, the air in the oil reservoir tank is communicated with the outside air through a breather, if the moisture in the air is not thoroughly filtered, the aggregation of the moisture in a conservator capsule is extremely easily caused, once the capsule is damaged, serious influence is caused to the transformer, and the breather of the conventional transformer is used for judging whether the silica gel is invalid or not by regularly observing whether the discoloration of the silica gel reaches the regulation requirement to be 2/3, so that the replacement is carried out, the following problems exist:
1) The allochroic silica gel contains toxic chemical components, so that the abandoned allochroic silica gel is not uniformly and intensively treated by partial units at present, and great environmental pollution hidden trouble exists.
2) The oil seal cup prevents dust from entering through the bottom oil collecting box, but the oil seal cup needs to be cleaned regularly, if the oil seal cup is not cleaned thoroughly, a breathing channel is blocked, and the operation of the transformer is failed; the silica gel is not replaced regularly, so that the silica gel is supersaturated in water absorption and finally breaks, broken powder can cause the respirator hole to be blocked, and potential safety hazards exist;
3) The quality of replacing silica gel is greatly influenced by personnel skills, the criterion of replacing silica gel depends on manual judgment, the judging standard is related to the skills of operation and maintenance personnel, the same process of replacing silica gel is complex, the replacement is required to be carried out under the conditions of good weather conditions and low air humidity, the size and the model of the respirator and the time for replacing the silica gel last time are determined before replacement, the time interval is calculated, and the reason of dampness is primarily judged; before working, preparing color-changing silica gel, rubber sealing gaskets, transformer oil, respirators of the same type and construction tools; before working, a working ticket is opened, a dispatching department is applied for short-time shutdown of transformer heavy gas protection, and heavy gas protection action caused by air flow (oil flow) surging in the replacement process is prevented; cleaning and oil exchanging are carried out on the oil seal cup, and all the stressed sealing rings need to be replaced. The whole set of replacement quality is closely related to the operation skills of operation and maintenance personnel, most of the existing respirators are a detachable organic glass volume silica gel tank and a non-detachable silica gel tank, wherein the detachable respirators require higher requirements of operation personnel on the replacement process and the tightness degree of screws in the process of replacing silica gel, otherwise, the damage of organic glass is extremely easy to cause, the whole replacement process consumes longer time, and poor sealing of the joint of respirator parts is also caused when the number of times of replacement is more, so that moisture is not filtered by silica gel and directly enters a transformer oil pillow, and possibly the transformer oil is affected with damp; although the non-detachable respirator can avoid the adverse factors of the detachable respirator, in the process of replacing the silica gel, the silica gel is scattered due to smaller tank opening for pouring the silica gel, and the environment is polluted.
4) As the demand for power increases year by year, larger transformers will be put into service, while larger respirators (the weight of the desiccant is positively correlated with the amount of oil in the transformer) will be used. Replacement would also be more cumbersome if a more cumbersome respirator were used; the number of times of replacing the silica gel is multiplied if the size of the respirator is not changed;
5) Because the installation of partial transformer silica gel jar is too high, change silica gel and need carry out the outage maintenance, also must increase the outage number of times, also can reduce the life-span of transformer finally.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the respirator for the transformer, which can realize on-line maintenance of the respirator on the premise of ensuring that the breathing function is not damaged.
The technical scheme of the invention is as follows:
the technical scheme is as follows:
the breather for the transformer comprises a glass silica gel tank, wherein a connecting flange for connecting a conservator is fixedly arranged at the upper end of the glass silica gel tank, a lower connecting piece is fixedly arranged at the lower end of the glass silica gel tank, and an oil seal cup is fixedly connected to the lower end of the lower connecting piece; a hollow metal rod vertically and fixedly penetrates through the glass silica gel tank, a plurality of through holes are formed in the metal rod, and a plurality of electric heating plates are uniformly and fixedly arranged on the outer wall of the metal rod; a hollow connecting rod penetrates into the center of the lower connecting piece from the outer side wall of the lower connecting piece and is communicated with the metal rod; the temperature and humidity sensor is further arranged in the glass silica gel tank, a controller is arranged at the outer end of the glass silica gel tank, each electric heating sheet and the temperature and humidity sensor are electrically connected with the controller, and the controller receives data of the temperature and humidity sensor and sends the data to a remote upper computer and sends out signals to control each electric heating sheet.
Further, a physical condensation piece is arranged at the vent hole at the top of the glass silica gel tank.
Further, an inverted umbrella-shaped condensed water receiving plate is fixedly arranged on the outer wall of the metal rod, and is positioned below the material condensing sheet and above the electric heating sheet.
Further, a one-way valve for preventing external air from entering is arranged in the connecting rod.
Further, a wireless module is further arranged in the controller and used for being connected with the mobile electronic equipment.
Furthermore, the side surface of the glass silica gel tank is transparent glass, and the inner surface of the glass silica gel tank is provided with a color-changing silica gel moisture-absorbing material.
Further, the electric heating plate is formed by winding a metal pipe, and an electric heating wire is arranged in the metal pipe and is connected with the controller through a wire.
Further, a sealing gasket is fixedly arranged at the upper end of the connecting flange.
The second technical scheme is as follows:
a method for regenerating silica gel in a respirator, wherein the respirator adopts the respirator in the first technical scheme; the method comprises the following steps:
step one: the connecting rod is communicated with an air pump; the temperature and humidity sensor sends humidity data in the glass silica gel tank to the controller in real time, when the humidity exceeds a set humidity highest threshold value, the silica gel regeneration system is started, and the controller controls each electric heating plate to be started and simultaneously starts the air pump;
step two: the air pump sucks water vapor generated in the heating process of the silica gel through the connecting rod and the through hole on the metal rod, the water vapor which is not sucked can be condensed into water by a physical condensation sheet when rising to the top layer of the glass silica gel tank, the water is dropped on the inverted umbrella-shaped condensed water receiving plate, and the condensed water flows to the metal rod through the inverted umbrella-shaped condensed water receiving plate and flows out through the through hole;
step three: when the temperature and humidity sensor senses that the temperature in the glass silica gel tank exceeds a set highest threshold value, the controller turns off all the electric heating plates, and when the temperature is lower than a set lowest threshold value, all the electric heating plates are turned on again, so that the heating temperature in the glass silica gel tank is ensured;
step four: when the temperature and humidity sensor senses that the humidity in the glass silica gel tank is lower than a set minimum threshold value, the silica gel regeneration system is closed, the controller closes all the electric heating plates, and the air pump is closed.
The invention has the following beneficial effects:
1. according to the invention, the silica gel is regenerated by heating, so that the disassembly and assembly process of the respirator is omitted on the premise of not affecting the normal respiration of the transformer, human errors are reduced, the whole processes of judgment, control, heating and gas exchange are automatically completed, the workload of operation and maintenance personnel is reduced, and the labor productivity is improved.
2. The metal rod with the through hole replaces the original fixed rod, and water vapor generated in the heating process can be extracted through the connecting rod; the water vapor which is not extracted is condensed into water through the physical condensation piece and is discharged through the through hole, so that a second defense line for preventing the moisture is formed.
3. The controller and the temperature and humidity sensor are used for realizing programmed, standardized and standardized control flow, controlling heating starting time, heating temperature control and air duct extraction, and realizing on-site heating control of the moisture absorption silica gel of the respirator.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a cross-sectional view of the present invention.
The reference numerals in the drawings are as follows:
1. a glass silica gel tank; 11. a connecting flange; 12. a lower connecting piece; 13. an oil seal cup; 14. a metal rod; 141. a through hole; 15. physical condensation sheets; 16. inverted umbrella-shaped condensed water receiving plate; 2. a controller; 20. a temperature and humidity sensor; 21. an electric heating plate; 3. a connecting rod; 31. a one-way valve.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments.
Embodiment one:
referring to fig. 1 and 2, a respirator for a transformer comprises a glass silica gel tank 1, wherein a connecting flange 11 for connecting a conservator is fixedly arranged at the upper end of the glass silica gel tank 1, a lower connecting piece 12 is fixedly arranged at the lower end of the glass silica gel tank, and an oil seal cup 13 is fixedly connected to the lower end of the lower connecting piece 12; a hollow metal rod 14 is vertically and fixedly arranged in the glass silica gel tank 1 in a penetrating way, a plurality of through holes 141 are formed in the metal rod 14, and a plurality of electric heating plates 21 are uniformly and fixedly arranged on the outer wall of the metal rod 14; a hollow connecting rod 3 penetrates into the center of the lower connecting piece 12 from the outer side wall of the lower connecting piece 12 and is communicated with the metal rod 14; the glass silica gel tank 1 is internally provided with a temperature and humidity sensor 20 for sensing temperature and humidity, the outer end of the glass silica gel tank 1 is provided with a controller 2, each electric heating plate 21 and the temperature and humidity sensor 20 are electrically connected with the controller 2, and the controller 2 receives data of the temperature and humidity sensor 20 and sends the data to a remote upper computer and sends out signals to control each electric heating plate 21.
Further, the vent hole at the top of the glass silica gel tank 1 is provided with a physical condensation piece 15, and the physical condensation piece 15 condenses the vapor generated by heating and prevents the vapor from entering the inside of the transformer.
Further, an inverted umbrella-shaped condensate water receiving plate 16 is fixedly disposed on the outer wall of the metal rod 14, the inverted umbrella-shaped condensate water receiving plate 16 is located below the material condensing sheet and above the electric heating sheet 21, and the inverted umbrella-shaped condensate water receiving plate 16 is used for receiving condensate water and guiding the condensate water into the through hole 141 for discharging.
Further, a check valve 31 for preventing external air from entering is disposed in the connecting rod 3.
Further, a wireless module is further disposed in the controller 2 and is used for connecting with a mobile electronic device, and through the wireless module, operation and maintenance personnel can realize remote monitoring and control.
Furthermore, the side surface of the glass silica gel tank 1 is transparent glass, and the inner surface is provided with a color-changing silica gel moisture absorbing material, and the principle of the color-changing silica gel is that cobalt dichloride (CoCL 2) contains crystal water in different amounts and has different colors, wherein the cobalt dichloride contains six molecular crystal water and is pink when containing two molecular crystal water, and the cobalt dichloride is blue when not containing crystal water.
Further, the electric heating plate 21 is formed by winding a metal tube, and an electric heating wire is arranged in the metal tube and is connected with the controller 2 through a wire.
Further, a sealing gasket 17 is fixedly arranged at the upper end of the connecting flange 11.
In this embodiment, the controller 2 adopts an STC12C5a60S2 single-chip microcomputer, which is produced by STC corporation, and has higher speed, lower power consumption and stronger anti-interference capability compared with a common 51 single-chip microcomputer; the temperature and humidity sensor 20 adopts a DTH11 temperature and humidity sensor, and the DTH11 temperature and humidity sensor is a calibrated temperature and humidity composite sensor which is output in a digital signal form, so that calibration and calibration are not needed, and an A/D conversion circuit is not needed to be arranged; the wireless module adopts an ESP8266 wireless WiFi module, and the ESP8266 wireless WiFi module is interconnected with a mobile phone of an operation and maintenance person through an AP mode, so that remote monitoring and control of equipment are realized.
Embodiment two:
a method for regenerating silica gel in a respirator, wherein the respirator adopts the respirator in the first technical scheme; the method comprises the following steps:
step one: connecting the connecting rod 3 with an air pump; the temperature and humidity sensor 20 sends the humidity data in the glass silica gel tank 1 to the controller 2 in real time, when the humidity exceeds a set humidity maximum threshold value, a silica gel regeneration system is started, and the controller 2 controls each electric heating plate 21 to be started and simultaneously starts an air pump;
step two: the air pump sucks water vapor generated in the heating process of the silica gel through the connecting rod 3 and the through hole 141 on the metal rod 14, the water vapor which is not sucked can be condensed into water by the physical condensation piece 15 when rising to the top layer of the glass silica gel tank 1, and the water vapor drops on the inverted umbrella-shaped condensed water receiving plate 16, and the condensed water flows to the metal rod 14 through the inverted umbrella-shaped condensed water receiving plate 16 and flows out through the through hole 141;
step three: when the temperature and humidity sensor 20 senses that the temperature in the glass silica gel tank 1 exceeds a set highest threshold, the controller 2 turns off each electric heating plate 21, and when the temperature is lower than a set lowest threshold, turns on each electric heating plate 21, so that the heating temperature in the glass silica gel tank 1 is ensured;
step four: when the temperature and humidity sensor 20 senses that the humidity in the glass silica gel tank 1 is lower than the set minimum threshold value, the silica gel regeneration system is closed, the controller 2 closes each electric heating plate 21, and the air pump is closed.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (5)
1. A respirator for a transformer, characterized by: the oil seal device comprises a glass silica gel tank (1), wherein a connecting flange (11) for connecting an oil conservator is fixedly arranged at the upper end of the glass silica gel tank (1), a lower connecting piece (12) is fixedly arranged at the lower end of the glass silica gel tank, and an oil seal cup (13) is fixedly connected to the lower end of the lower connecting piece (12); a hollow metal rod (14) is vertically and fixedly arranged in the glass silica gel tank (1), a plurality of through holes (141) are formed in the metal rod (14), and a plurality of electric heating plates (21) are uniformly and fixedly arranged on the outer wall of the metal rod (14); a hollow connecting rod (3) penetrates into the center of the lower connecting piece (12) from the outer side wall of the lower connecting piece (12) and is communicated with the metal rod (14); a temperature and humidity sensor (20) for sensing temperature and humidity is further arranged in the glass silica gel tank (1), a controller (2) is arranged at the outer end of the glass silica gel tank (1), each electric heating sheet (21) and each temperature and humidity sensor (20) are electrically connected with the controller (2), and the controller (2) receives data of the temperature and humidity sensor (20) and sends the data to a remote upper computer and sends out signals to control each electric heating sheet (21);
a physical condensation piece (15) is arranged at a vent hole at the top of the glass silica gel tank (1);
an inverted umbrella-shaped condensed water receiving plate (16) is fixedly arranged on the outer wall of the metal rod (14), and the inverted umbrella-shaped condensed water receiving plate (16) is positioned below the physical condensing sheet (15) and above the electric heating sheet (21);
a one-way valve (31) for preventing external air from entering is arranged in the connecting rod (3);
the electric heating sheet (21) is formed by winding a metal tube, and an electric heating wire is arranged in the metal tube and is connected with the controller (2) through a wire;
the metal rod (14) with the through hole is used for replacing the original fixed rod, and water vapor generated in the heating process can be extracted through the connecting rod (3); the water vapor which is not extracted is condensed into water through the physical condensation piece (15) and is discharged through the through hole, so that a second defending line for preventing the moisture is formed.
2. A respirator for a transformer as claimed in claim 1, wherein: and a wireless module is also arranged in the controller (2) and is used for connecting mobile electronic equipment.
3. A respirator for a transformer as claimed in claim 1, wherein: the side face of the glass silica gel tank (1) is made of transparent glass, and the inner surface of the glass silica gel tank is provided with a color-changing silica gel moisture-absorbing material.
4. A respirator for a transformer as claimed in claim 1, wherein: the upper end of the connecting flange (11) is fixedly provided with a sealing gasket (17).
5. A method of regenerating silica gel in a respirator, wherein the respirator is a respirator according to any one of claims 1 to 4; the method comprises the following steps:
step one: the connecting rod (3) is communicated with an air pump; the temperature and humidity sensor (20) sends humidity data in the glass silica gel tank (1) to the controller (2) in real time, when the humidity exceeds a set humidity highest threshold value, a silica gel regeneration system is started, and the controller (2) controls each electric heating plate (21) to be started and simultaneously starts an air pump;
step two: the air pump sucks water vapor generated in the heating process of the silica gel through the connecting rod (3) and the through hole (141) on the metal rod (14), the water vapor which is not sucked can be condensed into water when the water vapor rises to the top layer of the glass silica gel tank (1) and drops on the inverted umbrella-shaped condensed water receiving plate (16), and the condensed water flows to the metal rod (14) through the inverted umbrella-shaped condensed water receiving plate (16) and flows out through the through hole (141);
step three: when the temperature and humidity sensor (20) senses that the temperature in the glass silica gel tank (1) exceeds a set highest threshold value, the controller (2) turns off all the electric heating plates (21), and when the temperature is lower than a set lowest threshold value, all the electric heating plates (21) are turned on again, so that the heating temperature in the glass silica gel tank (1) is ensured;
step four: when the temperature and humidity sensor (20) senses that the humidity in the glass silica gel tank (1) is lower than a set minimum threshold value, the silica gel regeneration system is closed, the controller (2) closes each electric heating plate (21), and the air pump is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918165.5A CN109087786B (en) | 2018-08-13 | 2018-08-13 | Respirator for transformer and silica gel regeneration method in respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918165.5A CN109087786B (en) | 2018-08-13 | 2018-08-13 | Respirator for transformer and silica gel regeneration method in respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109087786A CN109087786A (en) | 2018-12-25 |
| CN109087786B true CN109087786B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810918165.5A Active CN109087786B (en) | 2018-08-13 | 2018-08-13 | Respirator for transformer and silica gel regeneration method in respirator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110634651A (en) * | 2019-09-23 | 2019-12-31 | 国网湖北省电力公司咸宁供电公司 | Transformer respirator and regeneration method of silica gel in respirator |
| CN110504087A (en) * | 2019-09-23 | 2019-11-26 | 国网湖北省电力公司咸宁供电公司 | The regeneration method of silica gel in a kind of respirator for transformer and respirator |
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| JP2012151144A (en) * | 2011-01-14 | 2012-08-09 | Chugoku Electric Power Co Inc:The | Moisture-absorbing respirator and moisture-absorbing respiration device |
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| CN105374516A (en) * | 2014-08-28 | 2016-03-02 | 广西电网公司桂林供电局 | Self-healing type moisture absorber for transformer |
| CN106373726A (en) * | 2016-10-31 | 2017-02-01 | 陕西金源自动化科技有限公司 | Temperature control switching maintenance-free moisture absorber with dual drying chambers longitudinally arranged |
| CN206532669U (en) * | 2017-02-22 | 2017-09-29 | 国网安徽省电力公司检修公司 | It is conveniently replaceable the transformer breather of silica gel |
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2018
- 2018-08-13 CN CN201810918165.5A patent/CN109087786B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012151144A (en) * | 2011-01-14 | 2012-08-09 | Chugoku Electric Power Co Inc:The | Moisture-absorbing respirator and moisture-absorbing respiration device |
| CN105374516A (en) * | 2014-08-28 | 2016-03-02 | 广西电网公司桂林供电局 | Self-healing type moisture absorber for transformer |
| 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 |
| KR20150073891A (en) * | 2015-04-30 | 2015-07-01 | 주식회사 신흥전력 | Respiratory-mounted drying power transformer |
| CN204946653U (en) * | 2015-09-30 | 2016-01-06 | 国家电网公司 | A kind of transformer dehumidification-type respirator |
| CN106373726A (en) * | 2016-10-31 | 2017-02-01 | 陕西金源自动化科技有限公司 | Temperature control switching maintenance-free moisture absorber with dual drying chambers longitudinally arranged |
| CN206532669U (en) * | 2017-02-22 | 2017-09-29 | 国网安徽省电力公司检修公司 | It is conveniently replaceable the transformer breather of silica gel |
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| Publication number | Publication date |
|---|---|
| CN109087786A (en) | 2018-12-25 |
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