CN218384746U

CN218384746U - Transformer respirator

Info

Publication number: CN218384746U
Application number: CN202222766039.7U
Authority: CN
Inventors: 魏佳骏; 贺海浪; 耿鹏彪; 姚洵; 李晨阳; 张芳; 谢珣; 朱思宇; 马宏刚
Original assignee: State Grid Jiangsu Electric Power Co ltd Zhenjiang Power Supply Branch
Current assignee: State Grid Jiangsu Electric Power Co ltd Zhenjiang Power Supply Branch
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-24
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a transformer respirator, including the respirator body, still keep apart the lid including setting up the silica gel placement mechanism in the glass of respirator body covers respectively, top, silica gel placement mechanism is the cylinder, and it cuts the section and be cyclic annular, and the top surface of silica gel placement mechanism passes through the top and keeps apart the top flange joint of lid with the respirator body, the embedded joint of bottom surface and the bottom flange of respirator body, and the screw rod of respirator body passes silica gel placement mechanism axis, and silica gel is filled in the annular space between silica gel placement mechanism inner circle and outer lane. The silica gel placing mechanism added in the utility model does not change the original gas passage and does not influence the transformer gas protection; because the silica gel placing mechanism is an annular cylinder, compared with the original respirator, the usage amount of silica gel can be saved; the respirator can greatly save the time for replacing the silica gel of the respirator and simplify the flow; the service life of the breather of the transformer and the three glass utensils inside is prolonged.

Description

Transformer respirator

Technical Field

The utility model relates to a potential device especially relates to a transformer respirator.

Background

The transformer breather is an important part of the transformer and is used for absorbing moisture and impurities in the air so as to maintain the quality of oil in the transformer. Structurally, the transformer breather mainly comprises an inner oil cup, an outer oil cup, a top flange, a bottom flange, a glass cover, a long screw, color-changeable silica gel, filtering oil and the like. The top flange of the breather is connected with the transformer conservator through the transformer air passage. The screw rod penetrates through the top flange, the silica gel, the bottom flange and the inner oil cup in sequence under the wrapping of the silica gel in the glass cover and is immersed in the filtering oil. The outer oil cup is filled with filtering oil, and the middle part is sleeved with the inner oil cup. The gas passes through the outer oil cup, the inner oil cup and the silica gel to reach the top flange and the transformer air passage.

At present, the procedure of replacing the silica gel of the respirator is to take a glove with a thread, firstly rotate an outer oil cup at the lower part of the respirator and take down the outer oil cup. Then, a small fixing nut on the screw rod is turned down, the cover at the bottom of the small oil cup is taken down, and then the inner oil cup at the lower part of the respirator is rotated. Finally, the glass cover is carefully taken down along the screw with all the silica gel. Thus, the old silica gel is poured out, the new silica gel is taken out for replacement, and then the just done flow is reversed for all the times, so that the replacement flow is completed.

Such a replacement procedure has several problems: first, the process is too extensive, which makes the replacement time longer. During the period of time, the gas is not purified by the filtering oil and the silica gel in the process of exchanging the gas inside and outside the transformer, and the unpurified air enters the transformer, so that the insulating strength of the transformer oil is influenced. Secondly, because the three glass containers of the outer oil cup, the inner oil cup and the glass cover need to be taken down in sequence, particularly, the glass cover is large in size and is filled with a large amount of silica gel, the glass cover is easy to be grabbed and unstable by a single person when being replaced, and finally the glass cover is broken, which is also a problem often encountered in actual work.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: to the problem, the utility model aims at providing a transformer respirator to simplify the flow of changing respirator silica gel, make and dismantle convenient and fast more, improve work efficiency and respirator life.

The technical scheme is as follows: the utility model provides a transformer respirator, including the respirator body, still including setting up the silica gel placement mechanism in the glass of respirator body respectively, the lid is kept apart at the top, silica gel placement mechanism is the cylinder, it cuts the section and is cyclic annular, the top flange joint of lid and respirator body is kept apart through the top to the top surface of silica gel placement mechanism, the embedded joint of bottom surface and respirator body's bottom flange, the screw rod of respirator body passes silica gel placement mechanism axis, silica gel fills in the annular space between silica gel placement mechanism inner circle and outer lane.

Further, the top isolation cover comprises a top isolation cover sealing strip, a top isolation cover metal block and a top isolation cover filter screen, the top isolation cover metal block is circular, the top isolation cover filter screen is annular, the outer ring of the top isolation cover metal block is fixed with the inner ring of the top isolation cover filter screen, the top isolation cover sealing strip is annular and is fixed on the bottom surface of the top isolation cover metal block, a round hole is formed in the center of the top isolation cover metal block, and the screw rod is arranged in the round hole in a penetrating mode and is in sealing connection with the round hole.

Further, the top isolation cover sealing strip abuts against the inner ring of the silica gel placement mechanism, and the inner diameter of the top isolation cover sealing strip is equal to that of the silica gel placement mechanism.

Preferably, the top isolation cover filter screen is a carborundum screen, and the diameter of the mesh of the top isolation cover filter screen is smaller than that of the silica gel particles.

Preferably, the outer diameter of the top isolation cover is equal to the inner diameter of the glass cover, and the outer diameter of the silica gel placement mechanism is equal to or smaller than the outer diameter of the top isolation cover.

Further, the bottom flange includes inner flange, outer flange, and the inner flange is arranged in the outer flange with one heart, makes and forms ring shape hollow out construction between the two, is equipped with air vent, screw rod hole in the bottom flange on the inner flange, the interior oil ring of respirator body, screw rod respectively with inner flange connection, the upper portion and the glass cover of outer flange are fixed, the lower part is connected with the outer oil ring of respirator body, the circumference of the inner wall of outer flange is equipped with the round turn-ups, the outer lane and the turn-ups of silica gel placement mechanism bottom are connected.

Furthermore, a plurality of convex rods are uniformly distributed at intervals on the outer ring of the bottom of the silica gel placing mechanism, the convex rods are arranged along the radial direction, the convex rods are arranged on the turnup edge, so that the silica gel placing mechanism is clamped on the turnup edge, the bottom of the silica gel placing mechanism is embedded in the outer flange, and the turnup edge is provided with a plurality of notches which are consistent with the distribution structure of the convex rods.

Further, the distance A between the flanging and the inner flange is equal to the distance B between the inner ring and the outer ring of the silica gel placement mechanism.

Furthermore, the circumferential surface of the outer ring of the silica gel placing mechanism and the ring surface of the top of the silica gel placing mechanism are net surfaces, and the diameter of the net holes of the silica gel placing mechanism is smaller than that of silica gel particles.

Has the advantages that: compared with the prior art, the utility model has the advantages that:

(1) The added silica gel placing mechanism does not change the original gas passage and does not influence the gas protection of the transformer; (2) Because the silica gel placing mechanism is an annular cylinder, compared with the original respirator, the usage amount of silica gel can be saved; (3) The time for replacing the silica gel of the respirator can be greatly saved, and the flow is simplified; (4) The service life of the transformer breather and the three internal glassware is prolonged.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the top isolation cover;

FIG. 3 is a schematic structural view of a silica gel placement mechanism;

fig. 4 is a schematic top view of the bottom flange.

Detailed Description

The present invention will be further elucidated below with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative and not limiting the scope of the invention.

The utility model provides a transformer respirator, as shown in fig. 1-4, including the respirator body, the respirator body includes outer oil ring 1, interior oil ring 2, bottom flange 3, glass cover 4, screw rod 5, top flange 9, glass cover 4, bottom flange 3 connects gradually, screw rod 5 passes the three in proper order, outer oil ring 1 is connected with the bottom of bottom flange 3, outer oil ring 1 is built-in to be filtered with oil 7, interior oil ring 2 is being overlapped in the middle, top flange 9 passes through transformer air flue 6 and links to each other with the transformer conservator, make the respirator body constitute current respirator structure, on the basis of respirator body, this respirator still includes the silica gel placement mechanism 19 that sets up respectively in the glass cover 4 of respirator body, top isolating cover 11.

The silica gel placing mechanism 19 is a cylinder, the section of the silica gel placing mechanism is annular, and the top surface of the silica gel placing mechanism 19 is connected with the top flange 9 of the respirator body through the top isolating cover 11.

Lid 11 is kept apart including top isolation lid sealing strip 10, top isolation lid metal block 12, top isolation lid filter screen 17, and top isolation lid metal block 12 is circular, and top isolation lid filter screen 17 is the annular, and the outer lane of top isolation lid metal block 12 is fixed with the inner circle of top isolation lid filter screen 17, and top isolation lid filter screen 17 is the carborundum net, and its mesh diameter is less than silica gel particle diameter. The top isolation cover sealing strip 10 is annular and is fixed on the bottom surface of the top isolation cover metal block 12, the top isolation cover sealing strip 10 is abutted to the inner ring of the silica gel placing mechanism 19, and the inner diameter of the top isolation cover sealing strip 10 is equal to that of the silica gel placing mechanism 19. The center of the top isolation cover metal block 12 is provided with a round hole, and the screw rod 5 is arranged in the round hole in a penetrating way and is connected with the round hole in a sealing way. The outer diameter of the top isolation cover 11 is equal to the inner diameter of the glass cover 4, and the outer diameter of the silica gel placement mechanism 19 is equal to or smaller than the outer diameter of the top isolation cover 11.

The bottom surface of the silica gel placing mechanism 19 is in embedded joint with the bottom flange 3 of the respirator body, the bottom flange 3 comprises an inner flange 31 and an outer flange 32, the inner flange 31 is concentrically arranged in the outer flange 32, a circular hollow structure is formed between the inner flange and the outer flange, the inner flange 31 is provided with a bottom flange inner air vent 16 and a screw hole 18, an inner oil ring 2 of the respirator body and a screw 5 are respectively connected with the inner flange 31, the upper portion of the outer flange 32 is fixed with the glass cover 4, the lower portion of the outer flange is connected with the outer oil ring 1 of the respirator body, a circle of turned-over edge 321 is arranged in the circumferential direction of the inner wall of the outer flange 32, and an outer ring at the bottom of the silica gel placing mechanism 19 is connected with the turned-over edge 321. A plurality of convex rods 14 are uniformly distributed at intervals on the outer ring at the bottom of the silica gel placing mechanism 19, if the number is six, the convex rods 14 are arranged along the radial direction, the convex rods 14 are arranged on the turned-over edge 321, so that the silica gel placing mechanism 19 is clamped on the upper surface of the turned-over edge 321, the bottom of the silica gel placing mechanism is embedded in the outer flange 32, a bottom flange sealing gasket is arranged between the outer ring at the bottom of the silica gel placing mechanism 19 and the inner ring of the outer flange 32, and the turned-over edge 321 is provided with a plurality of notches 13 which are consistent with the distribution structure of the convex rods 14. The distance A between the flange 321 and the inner flange 31 is equal to the distance B between the inner ring and the outer ring of the silica gel placement mechanism 19. The turned-over edge 321 can ensure that the silica gel placing mechanism 19 is erected on the outer flange 32, when the whole silica gel placing mechanism 19 is rotated to enable the convex rods 14 to correspond to the notches 13 one by one, the hollow-out structure between the inner flange 31 and the outer flange 32 just happens to enable the whole silica gel placing mechanism 19 to pass through, and the convex rods 14 slide out of the notches 13.

The screw rod 5 of the respirator body penetrates through the middle shaft of the silica gel placing mechanism 19, and silica gel is filled in an annular space between the inner ring and the outer ring of the silica gel placing mechanism 19. The peripheral surface of the outer ring and the top ring surface of the silica gel placing mechanism 19 are net surfaces, and the diameter of the net hole of the silica gel placing mechanism is smaller than that of silica gel particles.

The utility model discloses on original transformer respirator's basis, increased silica gel placement machine 19 and top and kept apart lid 11 to original bottom flange 3 has carried out relevant improvement, keeps apart and has a diameter to equal the round hole of screw rod 5 diameters in the middle of the lid metal block 12, only supplies the screw rod to pass through, has round rubber circle to guarantee to leak gas in the round hole. The top isolation cover seal strip 10 prevents gas passing through the inner oil cup 2 from directly reaching the top flange 9 without passing through the silicone.

The outside of the top isolation cover metal block 12 is a top isolation cover filter screen 17 made of carborundum. The diameter of the mesh of the filter screen is smaller than the diameter of the silica gel particles. The diameter of the top isolation cover 11 as a whole is required to be identical to the inner diameter of the glass envelope.

For better matching with the silica gel placement mechanism 19, the bottom flange 3 is improved to a certain extent, on the basis of the original bottom flange 3, except for the original screw hole 18 on the bottom flange and the inner vent hole 16 of the bottom flange, the circular part from the outer diameter of the inner oil cup to the inner diameter of the outer oil cup is hollowed out, and the other parts are unchanged, so that the bottom flange 3 is divided into an inner flange 31 and an outer flange 32. The silicone rubber placing mechanism 19 is just as a circular cylinder which can be embedded into the inner flange 31 and the outer flange 32, and the inner and outer sealing gaskets at the contact position can prevent air leakage.

For the transformer silica gel placement mechanism 19, the bottom is a ring, the inner diameter of the ring is larger than the outer diameter of the inner oil cup 2, and the outer diameter of the ring is smaller than the inner diameter of the outer oil cup 1. On this ring, silica gel placement mechanism 19 bottom and inner peripheral surface are transparent thin glass preparation, and lateral surface and top are the filter screen, and the mesh diameter of this filter screen is less than silica gel particle diameter, and the convenience is in the glass cover with the gas filtration that comes on through interior oil cup 2 like this.

After installation, the top isolation cover 11 is uniformly placed above the silica gel placing mechanism 19, and the silica gel placing mechanism 19 is clamped at the middle ring of the bottom flange 3. When the silica gel is replaced, the silica gel placing mechanism 19 is directly rotated on the basis of rotating and taking down the outer oil cup, and after the convex rod 14 is aligned with the notch 13, the silica gel placing mechanism 19 of the transformer can be easily taken down without taking down other parts of the respirator.

The utility model discloses can improve XS type respirator. Wherein, should have a top isolation lid in the transformer respirator glass cover after reforming transform, should keep apart the lid and place in the glass cover. After the outer oil cup 1, the inner oil cup 2 and the bottom flange 3 need to be sequentially taken down, the middle small hole of the top isolation cover is slightly sleeved with the screw rod 5, and whether the screw rod is tightly wrapped by the rubber ring around the round hole is checked. The top insulating cover is then pushed into the glass envelope.

The steps for replacing the silica gel are as follows:

(1) And (4) rotating, taking down the outer oil cup 1, then slightly rotating the silica gel placing mechanism 19, enabling the protrudable rods 14 to correspond to the notches 13 one by one, and stopping.

(2) The silicone placement mechanism 19 is held in both hands and gently removed. Note that the silicone gel placement mechanism 19 is grasped.

(3) The new silicone placement mechanism 19 (with the silicone replaced) is pulled up with both hands, passes the bottom flange 3, and slowly enters the glass cover until the protruding rod 14 is higher than the flange 321.

(4) And rotating the 3 silica gel placing mechanism 19 again to stop the convex rods 14 when being staggered with the notches 13 one by one. After the fixing is finished, whether a circle of bottom flange sealing gasket is in contact fastening is adjusted by hand so as to prevent gas from entering.

(5) The outer oil cup 1 is filled with the filtering oil 7 to a normal oil level. The outer oil cup 1 is mounted on the bottom flange 3 by rotating.

For the reuse of silica gel placement mechanism 19, can set up a silica gel opening on it, make things convenient for pouring into and pouring out of silica gel.

Claims

1. The utility model provides a transformer respirator, includes respirator body, its characterized in that: still including setting up silica gel placement mechanism (19) in glass cover (4) of respirator body respectively, lid (11) is kept apart at the top, silica gel placement mechanism (19) are the cylinder, its section is cyclic annular, the top surface of silica gel placement mechanism (19) is kept apart lid (11) through the top and is connected with top flange (9) of respirator body, bottom surface and the embedded joint of bottom flange (3) of respirator body, screw rod (5) of respirator body pass silica gel placement mechanism (19) axis, silica gel fills in the annular space between silica gel placement mechanism (19) inner circle and outer lane.

2. The transformer respirator of claim 1, wherein: lid (11) are kept apart including the top and are kept apart lid sealing strip (10), lid metal block (12) are kept apart at the top, lid filter screen (17) are kept apart at the top, lid metal block (12) are kept apart at the top and are circular, lid filter screen (17) are kept apart at the top and are the annular, the outer lane of lid metal block (12) is kept apart at the top is fixed with the inner circle of lid filter screen (17) is kept apart at the top, lid sealing strip (10) are kept apart at the top and are the annular, be fixed in on the bottom surface of lid metal block (12) are kept apart at the top, the round hole has been seted up at the center of lid metal block (12) is kept apart at the top, screw rod (5) are worn to locate in the round hole and rather than sealing connection.

3. The transformer respirator of claim 2, wherein: the top isolation cover sealing strip (10) is abutted to the inner ring of the silica gel placing mechanism (19), and the inner diameter of the top isolation cover sealing strip (10) is equal to that of the silica gel placing mechanism (19).

4. A transformer respirator according to claim 2 or 3, wherein: the top isolation cover filter screen (17) is a carborundum net, and the diameter of the mesh of the top isolation cover filter screen is smaller than that of silica gel particles.

5. The transformer respirator according to any one of claims 1 to 3, wherein: the outer diameter of the top isolation cover (11) is equal to the inner diameter of the glass cover (4), and the outer diameter of the silica gel placing mechanism (19) is equal to or smaller than the outer diameter of the top isolation cover (11).

6. The transformer respirator of claim 1, wherein: bottom flange (3) are including inner flange (31), outer flange (32), inner flange (31) are arranged in outer flange (32) with one heart, make and form ring shape hollow out construction between the two, be equipped with air vent (16) in the bottom flange on inner flange (31), screw rod hole (18), interior oil ring (2) of respirator body, screw rod (5) are connected with inner flange (31) respectively, the upper portion and glass cover (4) of outer flange (32) are fixed, the lower part is connected with outer oil ring (1) of respirator body, the circumference of the inner wall of outer flange (32) is equipped with round turn-ups (321), the outer lane and turn-ups (321) of silica gel placement mechanism (19) bottom are connected.

7. The transformer respirator of claim 6, wherein: a plurality of convex rods (14) are uniformly distributed on the outer ring of the bottom of the silica gel placing mechanism (19) at intervals, the convex rods (14) are arranged along the radial direction, the convex rods (14) are arranged on the turned-over edge (321), so that the silica gel placing mechanism (19) is clamped on the turned-over edge (321), the bottom of the silica gel placing mechanism is embedded in the outer flange (32), and the turned-over edge (321) is provided with a plurality of notches (13) which are consistent with the distribution structure of the convex rods (14).

8. The transformer respirator of claim 6 or 7, wherein: the distance A between the flanging (321) and the inner flange (31) is equal to the distance B between the inner ring and the outer ring of the silica gel placing mechanism (19).

9. The transformer respirator of claim 1, wherein: the peripheral surface of the outer ring and the top ring surface of the silica gel placing mechanism (19) are net surfaces, and the diameter of the net hole is smaller than that of silica gel particles.