CN106683835A - Nitrogen-charged transformer oil storage cabinet - Google Patents
Nitrogen-charged transformer oil storage cabinet Download PDFInfo
- Publication number
- CN106683835A CN106683835A CN201710107366.2A CN201710107366A CN106683835A CN 106683835 A CN106683835 A CN 106683835A CN 201710107366 A CN201710107366 A CN 201710107366A CN 106683835 A CN106683835 A CN 106683835A
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- capsule
- cabinet
- transformer oil
- oil storage
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Abstract
Disclosed is a nitrogen-charged transformer oil storage cabinet. The nitrogen-charged transformer oil storage cabinet comprises a cabinet body, a sealing capsule in the cabinet body and a protection relay used for monitoring the sealing condition of the sealing capsule, wherein the sealing capsule is connected to a nitrogen bottle through a nitrogen protection apparatus used for controlling internal pressure of the capsule; and a nitrogen inlet of the nitrogen protection apparatus is connected to the nitrogen bottle through an input pipeline while a nitrogen charging port is connected to the sealing capsule through an output pipeline. The invention provides the nitrogen-charged transformer oil storage cabinet; the capsule is sealed, and the internal medium is changed from air into high-purity nitrogen; a moisture absorber is not adopted, and instead, the cabinet is directly connected with the atmosphere, so that the atmosphere, and particularly water vapor in the atmosphere are isolated; and a micro positive pressure gas protection layer is formed in the oil storage cabinet, so that it is ensured that the capsule is not corroded by water vapor, oxygen and other harmful substances for a long time, and the aging speed of the capsule in the cabinet is lowered.
Description
Technical field
The invention belongs to transformer technology field, and in particular to a kind of nitrogen-sealed transformer oil conservater.
Background technology
Traditional outer oil type capsule oil conservator, gas passes through dessicator directly and atmosphere in capsule, only by moisture absorption
Device filters moisture in air, capsule for a long time with air directly contact, aging speed is very fast.
The content of the invention
For the problems referred to above, the present invention provides a kind of nitrogen-sealed transformer oil conservater.
To solve the above problems, the technical solution used in the present invention is：A kind of nitrogen-sealed transformer oil conservater, including cabinet,
Seal capsule in cabinet, the protective relay for monitoring seal capsule sealing situation, described seal capsule is by being used for
The nitrogen protection device for controlling its internal pressure is connected to nitrogen cylinder, and described nitrogen protection device enters nitrogen mouth Jing input channels
It is connected to nitrogen cylinder, nitrogen charging mouth Jing output channels and is connected to seal capsule.
Described protective relay is the CPR type protective relays with gas detector, and is installed on cabinet top, with cabinet
The grease chamber connection of body, the sealing situation of real-time monitoring capsule finds in time capsule leakage, it is to avoid accident occurs, the protection of CPR types after
Electrical equipment collects the gas in transformer body, and when being pooled to predetermined value, protective relay will send alarm signal.
Described nitrogen cylinder is hung up on the wall of oil tank of transformer side with nitrogen protection device, and is adjacently positioned.
Described nitrogen protection device include bleed pressure switch, cylinder pressure gauge, 3 grades of pressure relief assemblies, low pressure gauge,
Manual air-release valves, pressure transducer, alarm and electromagnetic releasing valve, wherein bleed pressure switch can monitor the nitrogen in nitrogen cylinder
Whether pressure is less than preset value (generally 1MPa), and cylinder pressure gauge can show the nitrogen pressure force value in nitrogen cylinder, 3 grades of decompression groups
High pressure nitrogen in nitrogen cylinder is decompressed to preset pressure (generally 3KPa) by part step by step, and low pressure gauge can show that 3 grades of Jing subtracts
Nitrogen pressure force value after pressure, nitrogen of the Manual air-release valves manually in switch board body leaks into air, and pressure transducer can be monitored
Whether the nitrogen pressure in cabinet is maintained within pre-set pressure range (generally 3KPa~5KPa), and alarm sends switch letter
Number to electromagnetic releasing valve, electromagnetic releasing valve leaks into air by the nitrogen in switching signal switch board body.
The present invention proposes a kind of nitrogen-sealed transformer oil conservater, and capsule sealing, interior media is changed to high-purity nitrogen by air
Gas, does not adopt dessicator directly and atmosphere, has completely cut off air, has especially completely cut off vapor in the atmosphere, in oil conservater
Form the gas blanket of pressure-fired, it is ensured that capsule by the long-term erosion of moisture, oxygen and other harmful substances, not slow down
The aging speed of capsule in cabinet.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 illustrates for the function of nitrogen protection device.
Wherein, 1, protective relay, 2, cabinet, 3, capsule, 4, nitrogen cylinder, 5, nitrogen protection device.
Specific embodiment
As described in Figure 1, seal capsule 3 in a kind of nitrogen-sealed transformer oil conservater, including cabinet 2, cabinet 2, for monitoring
Seal capsule 3 seals the protective relay 1 of situation, and described seal capsule 3 is protected by being used to control the nitrogen of its internal pressure
Protection unit 5 is connected to nitrogen cylinder 4, and the nitrogen mouth Jing input channels that enter of described nitrogen protection device 5 are connected to nitrogen cylinder 4, nitrogen charging
Mouth Jing output channels are connected to seal capsule 3.
Described protective relay 1 is CPR type protective relays, and is installed on the top of cabinet 2, is connected with the grease chamber of cabinet 2
It is logical.
Described nitrogen cylinder 4 is hung up on the wall of oil tank of transformer side with nitrogen protection device 5, and is adjacently positioned.
As described in Figure 2, nitrogen protection device 5 includes bleed pressure switch, cylinder pressure gauge, 3 grades of pressure relief assemblies, low pressure pressures
Power table, Manual air-release valves, pressure transducer, alarm and electromagnetic releasing valve, wherein bleed pressure switch can be monitored in nitrogen cylinder 4
Nitrogen pressure whether be less than preset value (generally 1MPa), cylinder pressure gauge can show the nitrogen pressure force value in nitrogen cylinder 4,3
High pressure nitrogen in nitrogen cylinder 4 is decompressed to preset pressure (generally 3KPa) by level pressure relief assembly step by step, and low pressure gauge can show
Show the nitrogen pressure force value Jing after 3 grades of decompressions, Manual air-release valves manually control the nitrogen in cabinet 2 and leak into air, and pressure is passed
Sensor can monitor whether the nitrogen pressure in cabinet 2 is maintained within pre-set pressure range (generally 3KPa~5KPa), report to the police
Device sends switching signal to electromagnetic releasing valve, and electromagnetic releasing valve controls the nitrogen in cabinet 2 and leaks into air by switching signal.
By nitrogen injection after the evacuation of capsule 3, the interior insulation oil of cabinet 2 is charged to regulation oil level, inside nitrogen when cabinet 2 works
Pressure should be maintained at 3KPa~5KPa, and when nitrogen pressure is less than 3KPa in cabinet 2, pressure transducer sends signal, nitrogen cylinder 4
Interior high pressure nitrogen adds to glue Jing after the high pressure nitrogen in nitrogen cylinder 4 is decompressed to 3KPa by 3 grades of pressure relief assemblies by 15MPa step by step
In capsule 3.When pressure is more than 5KPa in cabinet 2, pressure transducer transmits signals to alarm, alarm output switch letter
Number, control electromagnetic releasing valve is opened, and the nitrogen in cabinet 2 is leaked into into air.When the pressure in nitrogen cylinder 4 is less than 1MPa, gas
Source pressure switch sends the low alarm signal prompting operator of bleed pressure and changes gas cylinder.
Claims (3)
1. a kind of nitrogen-sealed transformer oil conservater, it is characterised in that：Including the seal capsule (3) in cabinet (2), cabinet (2), it is used for
Monitoring seal capsule (3) seals the protective relay (1) of situation, and described seal capsule (3) for controlling its inside by pressing
The nitrogen protection device (5) of power is connected to nitrogen cylinder (4), and the nitrogen mouth Jing input channels that enter of described nitrogen protection device (5) connect
It is connected to nitrogen cylinder (4), nitrogen charging mouth Jing output channels and is connected to seal capsule (3).
2. a kind of nitrogen-sealed transformer oil conservater according to claim 1, it is characterised in that：Described protective relay (1)
For CPR type protective relays, and cabinet (2) top is installed on, is connected with the grease chamber of cabinet (2).
3. a kind of nitrogen-sealed transformer oil conservater according to claim 1, it is characterised in that：Described nitrogen cylinder (4) and nitrogen
Gas shielded device (5) is hung up on the wall of oil tank of transformer side, and is adjacently positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107366.2A CN106683835A (en) | 2017-02-27 | 2017-02-27 | Nitrogen-charged transformer oil storage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107366.2A CN106683835A (en) | 2017-02-27 | 2017-02-27 | Nitrogen-charged transformer oil storage cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106683835A true CN106683835A (en) | 2017-05-17 |
Family
ID=58861584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710107366.2A Pending CN106683835A (en) | 2017-02-27 | 2017-02-27 | Nitrogen-charged transformer oil storage cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106683835A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060349A (en) * | 2018-07-19 | 2018-12-21 | 洛阳轴承研究所有限公司 | The testing equipment and test method of screw type refrigerating compressor rotor supports bearing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB196611A (en) * | 1922-04-18 | 1924-07-10 | Vickers Electrical Co Ltd | Improvements relating to expansion devices for liquid-containing tanks and the like |
| JPS5730302A (en) * | 1980-07-31 | 1982-02-18 | Toshiba Corp | Transportation of fully equipped transporting type oil- immersed transformer |
| CN201886866U (en) * | 2010-11-10 | 2011-06-29 | 浙江志同变压器制造有限公司 | Capsule oil storage cabinet |
| CN203205194U (en) * | 2013-03-01 | 2013-09-18 | 沈阳益圣得机械制造有限公司 | Metal corrugated oil conservator for transformer |
| CN203232792U (en) * | 2012-09-21 | 2013-10-09 | 沈阳全密封变压器股份有限公司 | Three-phase iron-core isolated boosting transformer for ocean platform |
| CN203927386U (en) * | 2014-05-14 | 2014-11-05 | 中工国际工程股份有限公司 | A kind of installation for transformer inflated with nitrogen system |
| CN104934192A (en) * | 2015-06-23 | 2015-09-23 | 国家电网公司 | Main transformer nitrogen protection breather and application method thereof |
| CN105185524A (en) * | 2015-09-28 | 2015-12-23 | 江苏省电力公司泰州供电公司 | Oil-gas separated charged oil supply device of oil immersed mutual inductor and implementation method of oil-gas separated charged oil supply device |
-
2017
- 2017-02-27 CN CN201710107366.2A patent/CN106683835A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB196611A (en) * | 1922-04-18 | 1924-07-10 | Vickers Electrical Co Ltd | Improvements relating to expansion devices for liquid-containing tanks and the like |
| JPS5730302A (en) * | 1980-07-31 | 1982-02-18 | Toshiba Corp | Transportation of fully equipped transporting type oil- immersed transformer |
| CN201886866U (en) * | 2010-11-10 | 2011-06-29 | 浙江志同变压器制造有限公司 | Capsule oil storage cabinet |
| CN203232792U (en) * | 2012-09-21 | 2013-10-09 | 沈阳全密封变压器股份有限公司 | Three-phase iron-core isolated boosting transformer for ocean platform |
| CN203205194U (en) * | 2013-03-01 | 2013-09-18 | 沈阳益圣得机械制造有限公司 | Metal corrugated oil conservator for transformer |
| CN203927386U (en) * | 2014-05-14 | 2014-11-05 | 中工国际工程股份有限公司 | A kind of installation for transformer inflated with nitrogen system |
| CN104934192A (en) * | 2015-06-23 | 2015-09-23 | 国家电网公司 | Main transformer nitrogen protection breather and application method thereof |
| CN105185524A (en) * | 2015-09-28 | 2015-12-23 | 江苏省电力公司泰州供电公司 | Oil-gas separated charged oil supply device of oil immersed mutual inductor and implementation method of oil-gas separated charged oil supply device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060349A (en) * | 2018-07-19 | 2018-12-21 | 洛阳轴承研究所有限公司 | The testing equipment and test method of screw type refrigerating compressor rotor supports bearing |
| CN109060349B (en) * | 2018-07-19 | 2020-09-25 | 洛阳轴承研究所有限公司 | Testing equipment and testing method for rotor support bearing of screw type refrigeration compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |