CN213483529U - Transformer respirator convenient to change silica gel - Google Patents
Transformer respirator convenient to change silica gel Download PDFInfo
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- CN213483529U CN213483529U CN202022864298.4U CN202022864298U CN213483529U CN 213483529 U CN213483529 U CN 213483529U CN 202022864298 U CN202022864298 U CN 202022864298U CN 213483529 U CN213483529 U CN 213483529U
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- Prior art keywords
- silica gel
- pipe
- transformer
- breathing pipe
- steel ball
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 239000000741 silica gel Substances 0.000 title claims abstract description 96
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 96
- 230000008859 change Effects 0.000 title abstract description 9
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000000241 respiratory effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- -1 Polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
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- Transformer Cooling (AREA)
Abstract
The utility model provides a transformer respirator convenient to change silica gel, relates to the protection technology of a transformer, and it is loaded down with trivial details to dismantle the process when changing silica gel in order to solve current transformer respirator to and the more problem of the matter that needs to pay attention to when patrolling and examining. The first communicating pipe of the novel transformer is communicated with the breathing pipe of the transformer conservator through a flange; the silica gel tank is of a transparent hollow columnar structure, the top of the silica gel tank is communicated with the communicating pipe, and the silica gel tank is used for containing silica gel; the second communicating pipe is communicated with the silica gel tank and the first breathing pipe and the second breathing pipe simultaneously; the other end of the first breathing pipe is vertically arranged upwards and is provided with a first funnel-shaped groove, a first steel ball is placed in the first funnel-shaped groove, and the outer diameter of the first steel ball is larger than the inner diameter of the first breathing pipe; the other end of the second breathing tube is vertically arranged downwards and is provided with a second funnel-shaped groove, the second steel ball is placed in the second funnel-shaped groove, and the outer diameter of the second steel ball is larger than the inner diameter of the second breathing tube. The beneficial effects are that to patrol and examine conveniently, it is simple to change the silica gel flow.
Description
Technical Field
The utility model relates to a protection technology of transformer.
Background
In the power system, a transformer breather is an outlet for exchanging the oil level of a transformer conservator with outside air, the transformer breather is arranged at the tail end of a pipeline for communicating the conservator with the air, when the temperature of the transformer rises, oil in an oil tank correspondingly expands, so the oil level in the conservator also correspondingly rises, part of gas in a capsule is discharged through the breather at the moment, when the temperature of the transformer drops, the oil in the oil tank correspondingly contracts, so the oil level in the conservator also correspondingly drops, and the capsule breather sucks part of gas at the moment. The transformer respirator is also called a moisture absorber, the inside of the transformer respirator is filled with an adsorbent, and the adsorbent is usually allochroic silica gel (showing blue color when being dry and showing pink color when being wet) and has the functions of absorbing moisture in the air and reducing transformer oil from being affected with damp and deteriorated; the respirator is widely applied to power systems, and also applied to equipment such as current transformers, voltage transformers, reactors and the like.
The existing transformer respirator is mainly composed of a respirator upper flange, a respirator glass cup whole body, a respirator oil cup, color-changeable silica gel and a long screw rod in the respirator; the long screw is used for fixing the whole respirator glass cup and the respirator oil cup; therefore, when the silica gel is replaced, the whole glass cup of the respirator, the oil cup of the respirator and the long screw rod need to be detached to pour out the silica gel, and after the silica gel is replaced, the silica gel needs to be installed step by step, so that the conventional steps for replacing the silica gel are more, more materials are needed, the preparation process is long, the replacement process is complex, the consumed time is long, multiple persons are needed for cooperative operation, the requirement on the degree of cooperation is higher, the requirement on the skill of workers is higher, and the replacement of the transformer respirator is carried out in a clear sky and in a low air humidity weather, and the safe distance between the transformer respirator and a charged part is kept; self-protection is needed when the silica gel is replaced, and the blue silica gel is toxic due to containing a small amount of cobalt oxide, so that the blue silica gel is prevented from being eaten by mistake and contacted; the replaced old silica gel particles are properly stored to prevent soil and atmosphere pollution; simultaneously because staff's installation quality scheduling problem is obvious if the inside silica gel grain of respirator wets in a period after the change, and it is obvious to exceed holistic one third, then need restart this step, and is hard consuming time, influences equipment normal operating.
For the existing transformer respirator, not only the whole glass cup of the respirator but also the oil cup of the respirator need to be noticed during daily patrol; the respirator glass cup is characterized in that the respirator glass cup is integrally formed by filling the color-changeable silica gel, when the color-changing part of the silica gel occupies more than two thirds of the whole body, the silica gel needs to be replaced in time, so that abnormal states of transformer equipment are avoided, meanwhile, the color of the silica gel needs to be changed from the bottom under the condition that the sealing performance of the transformer respirator is good, if the color of the silica gel is changed from the upper part, the sealing performance of the transformer respirator is not tight, and the transformer respirator needs to be maintained in time and is guaranteed to be complete in sealing performance in order to guarantee the; the respirator oil cup is characterized in that the respirator oil cup has the advantages that only the height of the insulating oil level in the respirator oil cup is higher than the lowest end of the oil pipe, so that the sealing and dedusting effects can be achieved, meanwhile, the insulating oil in the transformer respirator oil cup cannot exceed the highest scale indicated by an oil scale, otherwise, the transformer respirator is blocked, and the transformer respirator cannot normally breathe; due to the complex structure of the transformer respirator and the relatively high requirement on the mounting process of the upper part of the sealing gasket, if the sealing gasket is incorrectly mounted, the transformer respirator fails and cannot breathe, strong pressure difference is formed between the internal pressure of the transformer and the outside, once the sealing gasket is suddenly released, gas protection action is caused, and main protection tripping of the main transformer is caused; if the sealing gasket is not sealed tightly, a large amount of color change in the silica gel short time can be caused, so that the original effect is lost, reapplication and replacement are needed, repeated work causes a lot of troubles, and the stable operation of the transformer is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing transformer respirator is complex in disassembly process when silica gel is replaced and the problem that the matters needing to be noticed are more in inspection, and provides a transformer respirator convenient for replacing silica gel.
The utility model relates to a transformer respirator convenient for replacing silica gel, which comprises a connecting piece, a silica gel tank and an air exchanger;
the connecting piece comprises a flange and a first connecting pipe;
the top end of the first communicating pipe is communicated with a transformer conservator breathing pipe through a flange;
the silica gel tank is of a transparent hollow columnar structure with the top and the bottom respectively opened, the opening end of the top is communicated with the bottom end of the communicating pipe of the connecting piece, and the interior of the silica gel tank is used for containing silica gel;
the air exchanger comprises a second communicating pipe, a first breathing pipe, a second breathing pipe, a first steel ball and a second steel ball;
the top end of the second communicating pipe is communicated with the open end of the bottom of the silica gel tank; the bottom end of the second communicating pipe is communicated with one end of the first breathing pipe and one end of the second breathing pipe at the same time;
the other end of the first breathing tube is vertically arranged upwards, a first funnel-shaped groove is formed in the tube in the vertical part of the first breathing tube, a first steel ball is placed in the first funnel-shaped groove, and the outer diameter of the first steel ball is larger than the inner diameter of the first breathing tube;
the other end of the second breathing tube is vertically arranged downwards, a second funnel groove is arranged in the vertical part of the second breathing tube, a second steel ball is placed in the second funnel groove, and the outer diameter of the second steel ball is larger than the inner diameter of the second breathing tube.
A transformer respirator convenient to change silica gel when silica gel needs to be changed, adopt the mode of whole change silica gel jar.
A transformer respirator convenient to change silica gel in dampproofing principle of air exchanger do: when the temperature in the transformer conservator is unchanged, the first steel ball is in close contact with the first funnel-shaped groove under the action of self gravity, and the second steel ball is in close contact with the second funnel-shaped groove under the action of self gravity, so that the silica gel tank is in a sealing state, and the silica gel in the silica gel tank is prevented from being damped.
When the temperature in the transformer conservator rises, the oil level rises, the gas at the upper part in the conservator is discharged by the breathing pipe of the transformer conservator, the discharged gas enters the silica gel tank through the connecting piece and enters the second communicating pipe of the air exchanger through the silica gel tank, and the air pressure in the air exchanger is larger than the air pressure outside the respirator at the moment, so that the second steel ball is in close contact with the second funnel-shaped groove under the combined action of the air pressure and the self gravity, the second breathing pipe is in a non-circulation state, and the first steel ball offsets the self gravity action under the action of the air pressure to promote the first steel ball to move upwards, so that the first breathing pipe enters a circulation state, and the gas is discharged by the first breathing pipe at the moment; when gaseous no longer discharge, a steel ball can fall back to original position owing to receive the influence of self gravity, plugs up first respiratory tube for non-circulation state is got back to again to first respiratory tube, prevents inside outside humid air gets into the silica gel jar, prevents that the silica gel in the silica gel jar from weing.
When the temperature in the transformer conservator is reduced, the oil level is reduced, the gas pressure of the breathing tube of the transformer conservator is reduced, because the breathing tube of the transformer conservator is communicated with the air exchanger through the connecting piece and the silica gel tank, the air pressure in the air exchanger is smaller than the air pressure outside the respirator, the first steel ball is tightly contacted with the first funnel-shaped groove under the combined action of the air pressure and the self gravity, the first breathing tube is in a non-circulation state, the second steel ball counteracts the self gravity action under the action of the air pressure, the second steel ball is promoted to move upwards, the second breathing tube is enabled to enter a circulation state, and at the moment, the gas flows in from the second breathing tube; when gas no longer flowed in, No. two steel balls can fall back to original position owing to receive the influence of self gravity, plug up the second breathing pipe for the second breathing pipe gets back to non-circulation state again, prevents inside outside humid air gets into the silica gel jar, prevents that the silica gel in the silica gel jar from weing.
The utility model has the advantages that the air exchanger replaces the prior oil cup of the transformer respirator, the long screw is removed on the premise of unchanged sealing performance, and the inspection can be performed only by paying attention to the silica gel tank, thereby facilitating the inspection; when the silica gel needs to be replaced, the mode of integrally replacing the silica gel tank is adopted, the replacement speed is high, the time consumption is short, the moisture in the air can be reduced to enter the transformer conservator, the insulating oil in the transformer is effectively prevented from being affected with damp and deteriorated, and the due effect of the respirator is better played; the disassembly and assembly are convenient, the overhaul time can be reduced, the working time in a high-pressure field is reduced, and the safety factor of maintainers is improved to a certain extent; the requirement on the operating environment is low, and the work of replacing the silica gel can be arranged and carried out at any time without waiting for the environment to be very dry; the labor is saved, the cooperation of multiple persons is avoided, and the management is easy; the direct contact with silica gel is avoided, so that the working safety coefficient of workers can be improved; the direct contact with colloidal particles is avoided, and the working safety coefficient of workers can be improved;
drawings
Fig. 1 is a schematic perspective view of a transformer respirator convenient for replacing silica gel according to a first embodiment;
FIG. 2 is a perspective cross-sectional view of an air exchanger according to one embodiment;
FIG. 3 is a bottom view of the second embodiment with the upper dust cap covering the first snorkel;
FIG. 4 is a schematic view of a lower dust cap according to a third embodiment;
fig. 5 is a schematic view of a cover surface structure of a lower dust cap in the fourth embodiment.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 and 2, and the transformer respirator convenient for replacing silica gel according to the present embodiment includes a connecting piece 1, a silica gel tank 2 and an air exchanger 3;
the connecting piece 1 comprises a flange and a first connecting pipe;
the top end of the first communicating pipe is communicated with a transformer conservator breathing pipe through a flange;
the silica gel tank 2 is of a transparent hollow columnar structure with the top and the bottom respectively opened, the opening end of the top is communicated with the bottom end of the communicating pipe of the connecting piece 1, and the interior of the silica gel tank 2 is used for containing silica gel;
the air exchanger 3 comprises a second communicating pipe 3-1, a first breathing pipe 3-2, a second breathing pipe 3-3, a first steel ball 3-4 and a second steel ball 3-5;
the top end of the second communicating pipe 3-1 is communicated with the bottom opening end of the silica gel tank 2; the bottom end of the second communicating pipe 3-1 is communicated with one end of the first breathing pipe 3-2 and one end of the second breathing pipe 3-3 at the same time;
the other end of the first breathing tube 3-2 is vertically arranged upwards, a first funnel-shaped groove is formed in the tube of the vertical part of the first breathing tube 3-2, a first steel ball 3-4 is placed in the first funnel-shaped groove, and the outer diameter of the first steel ball 3-4 is larger than the inner diameter of the first breathing tube 3-2;
the other end of the second breathing tube 3-3 is vertically arranged downwards, a second funnel-shaped groove is arranged in the tube of the vertical part of the second breathing tube 3-3, a second steel ball 3-5 is placed in the second funnel-shaped groove, and the outer diameter of the second steel ball 3-5 is larger than the inner diameter of the second breathing tube 3-3.
In the embodiment, the flange is provided with four screw holes matched with the flange of the transformer conservator breathing pipe, and the four screw holes are connected through screws; the bottom end of the first communicating pipe is provided with internal threads which are matched with external threads arranged at the opening end of the top of the silica gel tank 2; the connecting piece 1 is made of Polyester (PET), Polyethylene (PE) and polypropylene (PP), on the basis, a corresponding organic solvent is added, and after high-temperature heating, the plastic mould is subjected to injection molding and one-step molding; the silica gel tank 2 is made of plastics, so that mass production is facilitated, the silica gel tanks 2 with different specifications can be designed, and the operation requirements of the moisture absorber are increased or reduced according to the difference of the transformer capacity and the breathing capacity; the bottom opening end of the silica gel tank 2 is provided with internal threads which are matched with the external threads at the top end of the second communicating pipe 3-1.
The second embodiment is as follows: the present embodiment is described with reference to fig. 3, and is further defined by a transformer respirator for facilitating replacement of silica gel according to the first embodiment, wherein the respirator further comprises an upper dust cover 4;
the upper dustproof cover 4 comprises a sealing structure at the upper part and a partition plate positioned at the bottom, the partition plate is of an annular structure, a plurality of vent holes 6 are formed in the partition plate along the circumferential direction, threads are arranged on the inner wall of the partition plate, and the upper dustproof cover 4 is screwed at the end part of the other end of the first breathing pipe 3-2 through the threads.
In the present embodiment, the upper dust cover 4 plays a role of rain-proof and dust-proof.
The third concrete implementation mode: the present embodiment is described with reference to fig. 4, and is further defined by a transformer respirator for facilitating replacement of silica gel according to the first embodiment, wherein the respirator further comprises a lower dust cover 5;
the top of the lower dust cover 5 is arranged at the end part of the other end of the second breathing pipe 3-3 in a threaded connection mode, and the cover surface of the lower dust cover 5 is realized by a filter screen 7.
In the present embodiment, the lower dust cap 5 plays a role of rain-proof and dust-proof.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 5, and is further limited to the transformer respirator for facilitating replacement of silica gel according to the third embodiment, in which the filter net 7 is a circle, a square, or another polygon.
The fifth concrete implementation mode: the transformer respirator convenient for replacing silica gel is further limited in the embodiment, the outer wall of the silica gel tank 2 is provided with a plurality of strip-shaped grooves in the vertical direction.
In the present embodiment, the elongated grooves are used to increase the mechanical strength of the silicone canister 2 and to increase the frictional force of the canister body of the silicone canister 2.
The sixth specific implementation mode: the present embodiment is further limited to the transformer respirator convenient for replacing silica gel according to the first embodiment, and in the present embodiment, the respirator further includes a lower protective net;
the lower protective net covers the opening end of the bottom of the silica gel tank 2.
In the present embodiment, the lower protective net is used to prevent the silica gel in the silica gel tank 2 from spilling out from the opening end of the bottom thereof.
The seventh embodiment: the embodiment is further limited to the transformer respirator convenient for replacing silica gel in the first embodiment, and in the embodiment, the respirator further comprises an upper protective net;
the upper protective net covers the opening end of the top of the silica gel tank 2.
In the present embodiment, the upper protective net is used to prevent the silica gel in the silica gel tank 2 from spilling out from the opening end of the top thereof.
Claims (7)
1. A transformer respirator convenient for replacing silica gel is characterized by comprising a connecting piece (1), a silica gel tank (2) and an air exchanger (3);
the connecting piece (1) comprises a flange and a first connecting pipe;
the top end of the first communicating pipe is communicated with a transformer conservator breathing pipe through a flange;
the silica gel tank (2) is of a transparent hollow columnar structure with openings at the top and the bottom respectively, the opening end at the top is communicated with the bottom end of the communicating pipe of the connecting piece (1), and the interior of the silica gel tank (2) is used for containing silica gel;
the air exchanger (3) comprises a second communicating pipe (3-1), a first breathing pipe (3-2), a second breathing pipe (3-3), a first steel ball (3-4) and a second steel ball (3-5);
the top end of the second communicating pipe (3-1) is communicated with the bottom opening end of the silica gel tank (2); the bottom end of the second communicating pipe (3-1) is communicated with one end of the first breathing pipe (3-2) and one end of the second breathing pipe (3-3) at the same time;
the other end of the first breathing pipe (3-2) is vertically arranged upwards, a first funnel groove is formed in the pipe of the vertical part of the first breathing pipe (3-2), a first steel ball (3-4) is placed in the first funnel groove, and the outer diameter of the first steel ball (3-4) is larger than the inner diameter of the first breathing pipe (3-2);
the other end of the second breathing pipe (3-3) is vertically arranged downwards, a second funnel groove is formed in the pipe of the vertical part of the second breathing pipe (3-3), the second steel ball (3-5) is placed in the second funnel groove, and the outer diameter of the second steel ball (3-5) is larger than the inner diameter of the second breathing pipe (3-3).
2. The transformer respirator convenient for replacing silica gel of claim 1, further comprising an upper dust cover (4);
go up shield (4) including the seal structure on upper portion and be located the baffle of bottom, the baffle is the loop configuration, it has a plurality of air vents (6) to open along circumference on the baffle to be equipped with the screw on the inner wall of baffle, twist end portion at the first respiratory tube (3-2) other end through this screw with last shield (4) soon.
3. The transformer respirator convenient for replacing silica gel of claim 1, further comprising a lower dust cover (5);
the top of the lower dustproof cover (5) is arranged at the end part of the other end of the second breathing pipe (3-3) in a threaded connection mode, and the cover surface of the lower dustproof cover (5) is realized by a filter screen (7).
4. The transformer respirator convenient for replacing silica gel as claimed in claim 3, characterized in that the filter screen (7) is round or square.
5. The transformer respirator convenient for replacing silica gel as claimed in claim 1, wherein the outer wall of the silica gel tank (2) is provided with a plurality of elongated grooves in the vertical direction.
6. The transformer respirator convenient for replacing silica gel of claim 1, further comprising a lower protective net;
the lower protective net covers the opening end of the bottom of the silica gel tank (2).
7. The transformer respirator convenient for replacing silica gel of claim 1, further comprising an upper protective net;
the upper protective net covers the opening end of the top of the silica gel tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022864298.4U CN213483529U (en) | 2020-12-03 | 2020-12-03 | Transformer respirator convenient to change silica gel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022864298.4U CN213483529U (en) | 2020-12-03 | 2020-12-03 | Transformer respirator convenient to change silica gel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213483529U true CN213483529U (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022864298.4U Active CN213483529U (en) | 2020-12-03 | 2020-12-03 | Transformer respirator convenient to change silica gel |
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| Country | Link |
|---|---|
| CN (1) | CN213483529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114255969A (en) * | 2021-12-24 | 2022-03-29 | 广东电网有限责任公司 | Transformer respirator overhauls protector |
-
2020
- 2020-12-03 CN CN202022864298.4U patent/CN213483529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114255969A (en) * | 2021-12-24 | 2022-03-29 | 广东电网有限责任公司 | Transformer respirator overhauls protector |
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