CN103822088A - Dry air filling system for transformer lifting base and dry air filling method - Google Patents
Dry air filling system for transformer lifting base and dry air filling method Download PDFInfo
- Publication number
- CN103822088A CN103822088A CN201410080255.3A CN201410080255A CN103822088A CN 103822088 A CN103822088 A CN 103822088A CN 201410080255 A CN201410080255 A CN 201410080255A CN 103822088 A CN103822088 A CN 103822088A
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- dry air
- tank
- power transformer
- silica gel
- transformer enclosure
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Abstract
The invention relates to a transformer, particularly to a dry air filling system for a transformer lifting base, which includes a dry air tank, a silica gel tank and a transformer oil tank, wherein the dry air tank, the silica gel tank and the transformer oil tank are connected in sequence; the upper outlet of the dry air tank and the lower inlet of the silica gel tank, as well as the upper outlet of the silica gel tank and the lower inlet of the transformer oil tank are connected through a pipeline respectively, and an outlet pipeline is connected with the upper outlet of the transformer oil tank. The using steps of the dry air filling system for the transformer lifting base are as follows: firstly, vacuumizing the transformer lifting base with a vacuum machine; secondly, connecting the outlet pipe onto a pipe bank valve; thirdly, opening an outlet valve and the pipe bank valve simultaneously and slowly; lastly, shutting the pipe bank valve and dismounting the outlet pipeline when the inner pressure of the lifting base reaches 0.02 to 0.03 MPa. According to the invention, the structure is simple, the operation is convenient, product quality of transformers is obviously improved, besides, the transportation cost is saved; furthermore, the safety factor is increased and pollutant emission is reduced.
Description
(1) technical field
The present invention relates to field transformer, particularly a kind of power transformer enclosure fills dry air system and utilizes this system to fill the method for dry air.
(2) background technique
Present stage, the transportation of power transformer enclosure band oil, behind erecting bed, user will carry out verification to the mutual inductor of power transformer enclosure inside, and the seat that raises just can complete verification after will draining the oil, and field requirement has the oil tank that stores transformer oil, can cause environmental pollution otherwise drain the oil, and transformer oil in power transformer enclosure belongs to article of consumption, virtually increases product cost.A general 220kV transformer has 8 seats that raise, and consumes nearly 2 tons of transformer oil.
(3) summary of the invention
The present invention, in order to make up the defect of prior art, provides a kind of safe, fuel-efficient power transformer enclosure to fill dry air system and has utilized this system to fill the method for dry air.
The present invention is achieved through the following technical solutions:
A kind of power transformer enclosure fills dry air system, it is characterized in that: comprise the dry air tank, silica gel tank and the transformer oil tank that connect successively, wherein the upper outlet of dry air tank is connected by pipeline respectively with the lower inlet of transformer oil tank with the lower inlet of silica gel tank, the upper outlet of silica gel tank, and the upper outlet of described transformer oil tank is connected with export pipeline.
The method of utilizing power transformer enclosure described in claim 1 to fill dry air system to fill dry air, is characterized in that, comprises the following steps:
1) first with vacuum machine, power transformer enclosure is vacuumized, after degree of vacuum reaches below negative pressure 133pa, close the union valve on power transformer enclosure;
2) export pipeline on transformer oil tank is connected on the union valve on power transformer enclosure;
3) slowly open the outlet valve of dry air tank, slowly open the union valve of power transformer enclosure simultaneously;
4) pressure gauge of observation power transformer enclosure, in the time that power transformer enclosure internal pressure reaches 0.02～0.03MPa, ambient atmosphere is pressed with malleation relatively, avoids air to enter power transformer enclosure, now closes union valve, pulls down export pipeline.
The invention has the beneficial effects as follows:
This invention is simple in structure, easy to operate, can obviously improve power transformer product quality.The mutual inductor rising seat of 220kV and above high-power transformer, adopts and fills dry air transportation, significantly saves product cost in alleviating hauled weight.Contrast oil-filled rising seat, scene does not need special oil storage tank, saves transformer oil cost; Contrast inflated with nitrogen rising seat, safety when field unloading presses gas, needn't worry the asphyxiation hazard of nitrogen to people.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is working principle schematic diagram of the present invention.
In figure, 1 dry air tank, 2 silica gel tanks, 3 transformer oil tanks, 4 pipelines, 5 export pipelines, 6 power transformer enclosures, 7 union valves, 8 outlet valves.
(5) embodiment
Accompanying drawing is specific embodiments of the invention.As shown in Figure 1, this kind of power transformer enclosure fills dry air system, comprise the dry air tank 1, silica gel tank 2 and the transformer oil tank 3 that connect successively, wherein the upper outlet of dry air tank 1 is connected by pipeline 4 respectively with lower inlet, the upper outlet of silica gel tank 2 and the lower inlet of transformer oil tank 3 of silica gel tank 2, and the upper outlet of transformer oil tank 3 is connected with export pipeline 5.
Utilize above-mentioned power transformer enclosure to fill the step that dry air system fills dry air to power transformer enclosure as follows:
1) be first connected on the union valve 7 of power transformer enclosure 6 power transformer enclosure 6 is vacuumized with vacuum machine, after degree of vacuum reaches below negative pressure 133pa, close the union valve 7 on power transformer enclosure 6;
2) export pipeline on transformer oil tank 35 is connected on the union valve 7 on power transformer enclosure 6;
3) slowly open the outlet valve 8 of dry air tank 1, slowly open the union valve 7 of power transformer enclosure 6 simultaneously; Taking slowly to open, be because there is the air pressure of 0.06～0.1MPa dry air tank 1 inside, and power transformer enclosure 6 inside is the negative pressure of vacuum of 133Pa.Once open fast, huge air-flow may cause damage to mutual inductor and the secondary connection thereof of power transformer enclosure 6 inside.
4) pressure gauge of observation power transformer enclosure 6, in the time that power transformer enclosure 6 internal pressures reach 0.02～0.03MPa, ambient atmosphere is pressed with malleation relatively, avoid air to enter power transformer enclosure 6, now close union valve 7, the work of rushing dry air of pulling down 5, one power transformer enclosures 6 of export pipeline completes.
5) continue next power transformer enclosure 6 to fill dry air according to same method, a general 220kV transformer has 8 power transformer enclosures 6.
The substitute the bad for the good power transformer enclosure 6 of dry air, can deliver, and during to onsite user's verification internal mutual sensor, opens union valve 7 release pressures.Power transformer enclosure 6 after having inspected is installed in transformer body, with transformer oiling.
Except technical characteristics described in specification, all the other technical characteristicss are those skilled in the art's known technology.
Claims (2)
1. a power transformer enclosure fills dry air system, it is characterized in that: comprise the dry air tank (1), silica gel tank (2) and the transformer oil tank (3) that connect successively, wherein the upper outlet of the upper outlet of dry air tank (1) and the lower inlet of silica gel tank (2), silica gel tank (2) and the lower inlet of transformer oil tank (3) are connected by pipeline (4) respectively, and the upper outlet of described transformer oil tank (3) is connected with export pipeline (5).
2. the method for utilizing power transformer enclosure described in claim 1 to fill dry air system to fill dry air, is characterized in that, comprises the following steps:
1) first with vacuum machine, power transformer enclosure is vacuumized, after degree of vacuum reaches below negative pressure 133pa, close the union valve on power transformer enclosure;
2) export pipeline on transformer oil tank is connected on the union valve on power transformer enclosure;
3) slowly open the outlet valve of dry air tank, slowly open the union valve of power transformer enclosure simultaneously;
4) pressure gauge of observation power transformer enclosure, in the time that power transformer enclosure internal pressure reaches 0.02～0.03MPa, ambient atmosphere is pressed with malleation relatively, avoids air to enter power transformer enclosure, now closes union valve, pulls down export pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080255.3A CN103822088A (en) | 2014-03-06 | 2014-03-06 | Dry air filling system for transformer lifting base and dry air filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080255.3A CN103822088A (en) | 2014-03-06 | 2014-03-06 | Dry air filling system for transformer lifting base and dry air filling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103822088A true CN103822088A (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410080255.3A Pending CN103822088A (en) | 2014-03-06 | 2014-03-06 | Dry air filling system for transformer lifting base and dry air filling method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103822088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098317A (en) * | 2016-07-12 | 2016-11-09 | 无锡市华东电力设备有限公司 | Charging dry air into transformer at negative pressure method and device thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426097A (en) * | 1987-07-17 | 1989-01-27 | Kyodo Sanso | Method for charging xenon gas into high pressure vessel |
| CN201402712Y (en) * | 2009-04-27 | 2010-02-10 | 焦作万方铝业股份有限公司 | Transformer breather |
| CN201672244U (en) * | 2010-06-01 | 2010-12-15 | 沈阳大型电力变压器维修有限公司 | Evacuation nitrogen filling or gas filling device specialized for finned radiator and cooler |
| CN202327636U (en) * | 2011-11-10 | 2012-07-11 | 保定天威集团有限公司 | Air charging system of transformer product |
| CN202884465U (en) * | 2012-11-06 | 2013-04-17 | 保定天威集团有限公司 | Transformer mutual inductor ascending flanged base storage and transportation structure |
-
2014
- 2014-03-06 CN CN201410080255.3A patent/CN103822088A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6426097A (en) * | 1987-07-17 | 1989-01-27 | Kyodo Sanso | Method for charging xenon gas into high pressure vessel |
| CN201402712Y (en) * | 2009-04-27 | 2010-02-10 | 焦作万方铝业股份有限公司 | Transformer breather |
| CN201672244U (en) * | 2010-06-01 | 2010-12-15 | 沈阳大型电力变压器维修有限公司 | Evacuation nitrogen filling or gas filling device specialized for finned radiator and cooler |
| CN202327636U (en) * | 2011-11-10 | 2012-07-11 | 保定天威集团有限公司 | Air charging system of transformer product |
| CN202884465U (en) * | 2012-11-06 | 2013-04-17 | 保定天威集团有限公司 | Transformer mutual inductor ascending flanged base storage and transportation structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098317A (en) * | 2016-07-12 | 2016-11-09 | 无锡市华东电力设备有限公司 | Charging dry air into transformer at negative pressure method and device thereof |
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Application publication date: 20140528 |