CN113161117A - Breathing channel device of transformer oil storage tank - Google Patents
Breathing channel device of transformer oil storage tank Download PDFInfo
- Publication number
- CN113161117A CN113161117A CN202110339928.2A CN202110339928A CN113161117A CN 113161117 A CN113161117 A CN 113161117A CN 202110339928 A CN202110339928 A CN 202110339928A CN 113161117 A CN113161117 A CN 113161117A
- Authority
- CN
- China
- Prior art keywords
- oil cup
- glass tube
- lower cover
- end part
- screw rod
- 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.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims abstract description 27
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 44
- 230000000149 penetrating effect Effects 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000000741 silica gel Substances 0.000 abstract description 18
- 229910002027 silica gel Inorganic materials 0.000 abstract description 18
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
- B65D90/34—Venting means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention belongs to the technical field of power systems, and particularly relates to a breathing channel device of a transformer oil storage tank. The breathing channel device of the transformer oil storage tank is characterized by comprising a breather, a fixed flange and a connecting pipeline, wherein one end of the connecting pipeline is communicated with the oil storage tank of the transformer, the other end of the connecting pipeline is fixedly connected with the fixed flange, and the fixed flange is connected with an upper cover of the breather through a bolt; the breather comprises an upper cover, a core penetrating screw rod, a glass tube, a lower cover, a small oil cup and a large oil cup; the upper end part of the glass tube is in threaded connection with the upper cover, and the lower end part of the glass tube is in threaded connection with the lower cover; the small oil cup and the big oil cup are positioned below the lower cover, and the small oil cup is positioned in the big oil cup. The device can effectively filter impurities and moisture in the air, and the time for replacing the silica gel is short.
Description
Technical Field
The invention belongs to the technical field of power systems, and particularly relates to a breathing channel device of a transformer oil storage tank.
Background
In electrical equipment, insulating oil can isolate charged parts of different potentials (potentials) from each other, so that short circuit is not formed. Assuming that the coils of the transformer are exposed to air and are quickly broken down when the equipment is operated, the transformer coils are filled with insulating oil, the dielectric strength is increased, the transformer coils are not broken down, and the safety factor of the equipment is increased as the quality of the insulating oil is improved. Therefore, the reliable insulating performance of the insulating oil is one of the main functions. In the process of overhauling the electrical equipment, the transformer oil can generate certain loss, so that the oil needs to be supplemented to the overhauled electrical equipment. Inside reserve transformer oil all stored in the oil storage tank for a long time, the in-process of drawing insulating oil in the oil storage tank can make outside air directly enter into the oil storage tank through the breathing pipeline at top, moist air can make the oil level contact in the oil storage tank lead to insulating oil to wet, the oxidation of oil is rotten with higher speed. Therefore, the breathing channel device of the transformer oil storage tank is designed to ensure the quality of the transformer oil stored in the oil storage tank.
The breather, also known as a moisture absorber, is a round container, the upper end of the breather is connected to an oil storage tank (oil conservator) of a transformer through a connecting pipeline, the lower end of the breather is provided with a hole communicated with the atmosphere, the main body of the breather is a glass tube, and allochroic silica gel is filled in the breather to be used as a drying agent. The air-conditioning device is used for removing and drying sundries and moisture in the air entering the transformer conservator due to the change of the temperature of the transformer oil so as to ensure the insulating strength of the transformer oil. The main change silica gel must be torn down the respirator from equipment and is carried out new, old silica gel's change work, returns the dress again, because of some respirator adorns on main body upper portion, the operation space is narrow and small, dismantles four fixed respirator bolts and wastes time and energy, causes to pull down the respirator time extension, causes the direct entering time of moisture long, has influenced silica gel life cycle and transformer insulating oil's dielectric strength. For the main transformer, replacing the silica gel of the respirator is a frequent maintenance work. For the main transformer, replacing the silica gel of the respirator is a frequent maintenance work. How to shorten the time for replacing the silica gel is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a breathing channel device of a transformer oil storage tank, which can effectively filter impurities and moisture in air and is short in time for replacing silica gel.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the breathing channel device of the transformer oil storage tank is characterized by comprising a breather 24, a fixed flange 25 and a connecting pipeline 27, wherein one end of the connecting pipeline 27 is communicated with the oil storage tank 28 of the transformer, the other end of the connecting pipeline 27 is fixedly connected with the fixed flange 25, and the fixed flange 25 is connected with an upper cover 2 of the breather 24 through a bolt 29;
the breather 24 comprises an upper cover 2, a core-penetrating screw rod 3, a glass tube 6, a lower cover 8, a small oil cup 10 and a big oil cup 12; the upper part of the upper cover 2 is provided with a flange, the upper cover 2 is provided with an air passage 15, the upper port of the air passage 15 is communicated with a connecting pipeline 27, the lower port of the air passage 15 is communicated with the glass tube 6, a partition plate 14 is fixed in the air passage 15, and the partition plate 14 is provided with a plurality of first holes 17; an annular first threaded connection groove is formed in the bottom surface of the upper cover 2, internal threads for being in threaded connection with the upper end portion of the glass tube 6 are arranged in the annular first threaded connection groove, and a first gasket 4 is arranged in the annular first threaded connection groove; an annular second threaded connecting groove is formed in the upper surface of the lower cover 8, internal threads for being in threaded connection with the lower end portion of the glass tube 6 are arranged in the annular second threaded connecting groove, and a second gasket 7 is arranged in the annular second threaded connecting groove; the upper end part and the lower end part of the glass tube 6 are both provided with external threads 23, the upper end part of the glass tube 6 is positioned in an annular first threaded connecting groove, the upper end part of the glass tube 6 is in threaded connection with the upper cover 2, the lower end part of the glass tube 6 is positioned in an annular second threaded connecting groove, and the lower end part of the glass tube 6 is in threaded connection with the lower cover 8; the center part of the lower cover 8 is provided with a first screw rod through hole 5, the lower cover 8 is provided with a plurality of second holes 18, and the second holes 18 are communicated with the small oil cup 10; the small oil cup 10 and the big oil cup 12 are positioned below the lower cover 8, the small oil cup 10 is positioned in the big oil cup 12, a third gasket 13 is arranged between the upper end of the small oil cup 10 and the lower cover 8, a plurality of fourth holes 20 are formed in the oil cup bottom plate 11 of the small oil cup 10, the fourth holes 20 are communicated with the big oil cup 12, and a second screw rod through hole is formed in the center of the oil cup bottom plate 11 of the small oil cup 10; the upper end part of the core penetrating screw rod 3 is positioned above the lower cover 8, the upper end part of the core penetrating screw rod 3 is screwed with a first nut 1, the lower end part of the core penetrating screw rod 3 passes through the first screw rod through hole 5 and a second screw rod through hole of the small oil cup 10, the lower end part of the core penetrating screw rod 3 is positioned below the oil cup bottom plate 11, and the lower end part of the core penetrating screw rod 3 is screwed with a second nut 21; an annular third threaded connection groove is formed in the bottom surface of the lower cover 8, internal threads used for being in threaded connection with the upper end of the large oil cup 12 are arranged in the annular third threaded connection groove, external threads are arranged at the upper end of the large oil cup 12, a fourth gasket 22 is arranged between the upper end of the large oil cup 12 and the lower cover 8, and the upper end of the large oil cup 12 is in threaded connection with the lower cover 8; a plurality of third holes 19 are arranged below the lower cover 8, one end of each third hole 19 is positioned on the outer side of the large oil cup 12, and the other end of each third hole 19 is positioned in the space between the small oil cup 10 and the large oil cup 12.
A gasket may be provided between the fixing flange 25 and the upper cover 2.
The connecting pipe 27 is provided with a valve 26.
The invention has the beneficial effects that: 1. impurities and moisture in the air are effectively filtered, and the insulation quality of the transformer oil in the oil storage tank is kept for a long time; the direct contact between the outside air and the transformer oil is avoided, and the reduction of the insulating strength of the transformer oil is avoided; the air pressure in the oil storage tank is ensured to be consistent with the external air pressure. 2. The time for replacing the silica gel is short.
Drawings
Fig. 1 is a schematic structural view of a breathing passage device of a transformer oil storage tank according to the present invention.
FIG. 2 is a schematic view of the respirator of the present invention.
FIG. 3 is a top view of the upper cover of the respirator of the present invention.
FIG. 4 is a bottom view of the upper cover of the respirator of the present invention.
FIG. 5 is a top view of the lower cover of the respirator of the present invention.
FIG. 6 is a bottom view of the lower cover of the respirator of the present invention.
FIG. 7 is a schematic view of a glass tube of the respirator of the present invention.
FIG. 8 is a schematic view of the structure of the large oil cup of the respirator of the present invention.
FIG. 9 is a schematic view of the structure of the small oil cup of the respirator of the present invention.
FIG. 10 is a bottom view of the small oil cup of the respirator of the present invention.
The labels in the figure are: 1-first nut, 2-upper cover, 3-core screw, 4-first gasket, 5-first screw through hole, 6-glass tube, 7-second gasket, 8-lower cover, 9-transformer oil, 10-small oil cup, 11-oil cup bottom plate, 12-big oil cup, 13-third gasket, 14-clapboard, 15-air channel, 16-screw hole, 17-first hole, 18-second hole, 19-third hole, 20-fourth hole, 21-second nut, 22-fourth gasket, 23-external thread, 24-respirator, 25-fixing flange, 26-valve, 27-connecting pipeline, 28-oil storage tank of transformer, 29-bolt.
Detailed Description
As shown in fig. 1-10, the breathing passage device of the transformer oil storage tank includes a breather 24, a fixing flange 25, and a connecting pipe 27, wherein one end of the connecting pipe 27 is communicated (fixedly connected, e.g., welded) with an oil storage tank (conservator) 28 of the transformer, the other end of the connecting pipe 27 is fixedly connected with the fixing flange 25 (e.g., welded, an inner hole of the fixing flange 25 is communicated with the connecting pipe 27), and the fixing flange 25 is connected with the upper cover 2 of the breather 24 by a bolt 29 (a gasket may be disposed between the fixing flange 25 and the upper cover 2 to play a sealing role); a valve 26 is arranged on the connecting pipeline 27 (when the silica gel is replaced, the valve 26 is closed, and air is prevented from directly entering an oil storage tank of the transformer);
the breather 24 comprises an upper cover 2, a core-through screw rod 3, a glass tube 6 (the glass tube and a lower cover form a glass tank, or a silica gel bottle; when in use, silica gel is filled in the glass tube), a lower cover 8, a small oil cup 10 and a big oil cup 12; the upper part of the upper cover 2 is a flange (four screw holes 16 for connecting bolts 29 are arranged on the flange), the upper cover 2 is provided with an air passage 15, the upper port of the air passage 15 is communicated with a connecting pipeline 27, the lower port of the air passage 15 is communicated with the glass tube 6, a partition plate 14 (for example, welding) is fixed in the air passage 15, and the partition plate 14 is provided with a plurality of first holes 17 (for example, 2-50 first holes); an annular first threaded connection groove is formed in the bottom surface of the upper cover 2, internal threads for being in threaded connection with the upper end portion of the glass tube 6 are arranged in the annular first threaded connection groove, and a first gasket 4 is arranged in the annular first threaded connection groove; an annular second threaded connecting groove is formed in the upper surface of the lower cover 8, internal threads for being in threaded connection with the lower end portion of the glass tube 6 are arranged in the annular second threaded connecting groove, and a second gasket 7 is arranged in the annular second threaded connecting groove; the upper end part and the lower end part of the glass tube 6 are both provided with external threads 23, the upper end part of the glass tube 6 is positioned in an annular first threaded connecting groove, the upper end part of the glass tube 6 is in threaded connection with the upper cover 2, the lower end part of the glass tube 6 is positioned in an annular second threaded connecting groove, and the lower end part of the glass tube 6 is in threaded connection with the lower cover 8 (the glass tube 6 is positioned between the upper cover 2 and the lower cover 8); the central part of the lower cover 8 is provided with a first screw rod through hole 5, the lower cover 8 is provided with a plurality of second holes (namely holes) 18 (such as 2-50 second holes), and the second holes 18 are communicated with the small oil cup 10; the small oil cup 10 and the big oil cup 12 are positioned below the lower cover 8, the small oil cup 10 is positioned in the big oil cup 12, a third gasket 13 is arranged between the upper end of the small oil cup 10 and the lower cover 8, a plurality of fourth holes (namely holes) 20 (such as 2-50 fourth holes) are arranged on an oil cup bottom plate (oil cup seal) 11 of the small oil cup 10, the fourth holes 20 are communicated with the big oil cup 12, and a second screw rod through hole is arranged at the central part of the oil cup bottom plate 11 of the small oil cup 10; the upper end part of the core penetrating screw rod 3 is positioned above the lower cover 8, the upper end part of the core penetrating screw rod 3 is screwed with a first nut (screw cap) 1, the lower end part of the core penetrating screw rod 3 passes through the first screw rod through hole 5 and a second screw rod through hole of the small oil cup 10, the lower end part of the core penetrating screw rod 3 is positioned below the oil cup bottom plate 11, and the lower end part of the core penetrating screw rod 3 is screwed with a second nut (screw cap) 21 (namely, the small oil cup 10 is hung on the lower cover 8 by the core penetrating screw rod 3 and sealed by a third gasket 13); an annular third threaded connection groove is formed in the bottom surface of the lower cover 8, internal threads used for being in threaded connection with the upper end of the large oil cup 12 are arranged in the annular third threaded connection groove, external threads are arranged at the upper end of the large oil cup 12, a fourth gasket 22 is arranged between the upper end of the large oil cup 12 and the lower cover 8, and the upper end of the large oil cup 12 is in threaded connection with the lower cover 8; a plurality of third holes 19 (for example, 2-50 third holes) are arranged below the lower cover 8, one end of each third hole 19 is positioned outside the large oil cup 12, and the other end of each third hole 19 is positioned in the space between the small oil cup 10 and the large oil cup 12.
When the oil cup is used, the silica gel is filled in the glass tube 6, the oil (transformer oil 9) is filled in the large oil cup 12, and the oil cup bottom plate 11 of the small oil cup 10 is positioned in the oil.
Use steps (in-situ respirator removal and installation, silica gel replacement): 1. because the big oil cup 12 is connected by screw threads, the big oil cup 12 is rotated, the big oil cup 12 is disassembled (the oil in the small oil cup 10 flows into the big oil cup 12), and the big oil cup 12 is placed on one side; 2. the upper end part of the glass tube 6 is in threaded connection with the upper cover 2, and the glass tube 6 is dismounted from the upper cover 2 by rotating the glass tube 6; 3. pouring out the damp silica gel in the glass tube 6; 4. after cleaning the glass tube 6, pouring new silica gel; 5. screwing the glass tube 6 on the upper cover 2; 6. the large oil cup 12 is screwed on the lower cap 8. The method has the advantages of fewer steps for replacing the silica gel, convenience and rapidness (the required time is not more than 15 minutes), and simple structure.
Claims (3)
1. The breathing channel device of the transformer oil storage tank is characterized by comprising a breather (24), a fixed flange (25) and a connecting pipeline (27), wherein one end of the connecting pipeline (27) is communicated with the oil storage tank (28) of the transformer, the other end of the connecting pipeline (27) is fixedly connected with the fixed flange (25), and the fixed flange (25) is connected with an upper cover (2) of the breather (24) through a bolt (29);
the breather (24) comprises an upper cover (2), a core penetrating screw rod (3), a glass tube (6), a lower cover (8), a small oil cup (10) and a big oil cup (12); the upper part of the upper cover (2) is provided with a flange, the upper cover (2) is provided with an air passage (15), the upper port of the air passage (15) is communicated with a connecting pipeline (27), the lower port of the air passage (15) is communicated with the glass tube (6), a partition plate (14) is fixed in the air passage (15), and the partition plate (14) is provided with a plurality of first holes (17); an annular first threaded connecting groove is formed in the bottom surface of the upper cover (2), internal threads used for being in threaded connection with the upper end portion of the glass tube (6) are arranged in the annular first threaded connecting groove, and a first gasket (4) is arranged in the annular first threaded connecting groove; an annular second threaded connecting groove is formed in the upper surface of the lower cover (8), internal threads used for being in threaded connection with the lower end portion of the glass tube (6) are arranged in the annular second threaded connecting groove, and a second gasket (7) is arranged in the annular second threaded connecting groove; the upper end part and the lower end part of the glass tube (6) are both provided with external threads (23), the upper end part of the glass tube (6) is positioned in an annular first thread connecting groove, the upper end part of the glass tube (6) is in thread connection with the upper cover (2), the lower end part of the glass tube (6) is positioned in an annular second thread connecting groove, and the lower end part of the glass tube (6) is in thread connection with the lower cover (8); a first screw rod through hole (5) is formed in the center of the lower cover (8), a plurality of second holes (18) are formed in the lower cover (8), and the second holes (18) are communicated with the small oil cup (10); the small oil cup (10) and the big oil cup (12) are positioned below the lower cover (8), the small oil cup (10) is positioned in the big oil cup (12), a third gasket (13) is arranged between the upper end of the small oil cup (10) and the lower cover (8), a plurality of fourth holes (20) are formed in an oil cup bottom plate (11) of the small oil cup (10), the fourth holes (20) are communicated with the big oil cup (12), and a second screw rod through hole is formed in the center of the oil cup bottom plate (11) of the small oil cup (10); the upper end part of the core penetrating screw rod (3) is positioned above the lower cover (8), a first nut (1) is screwed at the upper end part of the core penetrating screw rod (3), the lower end part of the core penetrating screw rod (3) penetrates through the first screw rod through hole (5) and the second screw rod through hole of the small oil cup (10), the lower end part of the core penetrating screw rod (3) is positioned below the oil cup bottom plate (11), and a second nut (21) is screwed at the lower end part of the core penetrating screw rod (3); an annular third threaded connection groove is formed in the bottom surface of the lower cover (8), an internal thread used for being in threaded connection with the upper end of the big oil cup (12) is arranged in the annular third threaded connection groove, an external thread is arranged at the upper end of the big oil cup (12), a fourth gasket (22) is arranged between the upper end of the big oil cup (12) and the lower cover (8), and the upper end of the big oil cup (12) is in threaded connection with the lower cover (8); a plurality of third holes (19) are formed in the lower face of the lower cover (8), one end of each third hole (19) is located on the outer side of the corresponding big oil cup (12), and the other end of each third hole (19) is located in the space between the corresponding small oil cup (10) and the corresponding big oil cup (12).
2. The breathing passage device of the transformer oil storage tank of claim 1, wherein: a gasket can be arranged between the fixed flange (25) and the upper cover (2).
3. The breathing passage device of the transformer oil storage tank of claim 1, wherein: and a valve (26) is arranged on the connecting pipeline (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339928.2A CN113161117A (en) | 2021-03-30 | 2021-03-30 | Breathing channel device of transformer oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110339928.2A CN113161117A (en) | 2021-03-30 | 2021-03-30 | Breathing channel device of transformer oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113161117A true CN113161117A (en) | 2021-07-23 |
Family
ID=76885663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110339928.2A Pending CN113161117A (en) | 2021-03-30 | 2021-03-30 | Breathing channel device of transformer oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113161117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023538A (en) * | 2021-11-12 | 2022-02-08 | 贵州电网有限责任公司 | Transformer respirator capable of improving drying efficiency |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517703A (en) * | 2015-01-12 | 2015-04-15 | 国网福建南安市供电有限公司 | Transformer breather with function of replacing silica gel without dismounting |
| CN205104329U (en) * | 2015-11-22 | 2016-03-23 | 国网湖北省电力公司咸宁供电公司 | Novel respirator that oil -immersed transformer used |
| CN205680530U (en) * | 2016-06-06 | 2016-11-09 | 国网福建省电力有限公司 | A kind of transformer breather sealing installation structure |
-
2021
- 2021-03-30 CN CN202110339928.2A patent/CN113161117A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517703A (en) * | 2015-01-12 | 2015-04-15 | 国网福建南安市供电有限公司 | Transformer breather with function of replacing silica gel without dismounting |
| CN205104329U (en) * | 2015-11-22 | 2016-03-23 | 国网湖北省电力公司咸宁供电公司 | Novel respirator that oil -immersed transformer used |
| CN205680530U (en) * | 2016-06-06 | 2016-11-09 | 国网福建省电力有限公司 | A kind of transformer breather sealing installation structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023538A (en) * | 2021-11-12 | 2022-02-08 | 贵州电网有限责任公司 | Transformer respirator capable of improving drying efficiency |
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Application publication date: 20210723 |