CN101697308B - Large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system - Google Patents
Large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system Download PDFInfo
- Publication number
- CN101697308B CN101697308B CN2009103092235A CN200910309223A CN101697308B CN 101697308 B CN101697308 B CN 101697308B CN 2009103092235 A CN2009103092235 A CN 2009103092235A CN 200910309223 A CN200910309223 A CN 200910309223A CN 101697308 B CN101697308 B CN 101697308B
- Authority
- CN
- China
- Prior art keywords
- oil
- fuel tank
- transformer
- pressure
- oil tank
- 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.)
- Active
Links
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system which belongs to the technical field of transformer manufacture. The high-pressure side and the low-pressure side of an oil tank and two end parts of the oil tank are respectively provided with a plurality of pressure releasing valves, the quantity of the pressure releasing valves is determined according to the length and the width of the oil tank; and for the weak strength of the oil tank, the distances among the pressure releasing valves are properly reduced. When the short circuit failure occurs inside the transformer, the pressure releasing valves simultaneously act to enable rapidly expanded transformer oil to be introduced into a bus tube through a plurality of branch guide tubes, and therefore, the oil tank anti-explosion system prevents the transformer oil tank from being damaged and collects the sprayed-out transformer oil to avoid the environment pollution.
Description
Affiliated technical field:
The present invention relates to a kind of large oil immersed power transformer, reactor oil tank anti-explosion pressure releasing system, belong to technical field of transformer manufacturing.
Background technology:
For oil-immersed type transformer, when the failed because of transformer inside, high temperature or electric arc can cause the decomposition of transformer oil, produce a large amount of gas, and the pressure in the fuel tank is sharply raise.If the pressure with its generation does not discharge, fuel tank will be out of shape or break, and causes serious accident, and this just need protect with pressure relief valve.At present, the protection of high-power transformer fuel tank is the pressure relief valve that φ 130 oil spout bores respectively are installed at the case lid two ends, when break down in transformer inside; Internal pressure raises; When the operating value of pressure overpressure relief valve, pressure relief valve is opened, and the oil extraction release; The protection fuel tank, the accident that prevents enlarges.But the protection of in fact this fuel tank is unsatisfactory, when the Accident of Transformer energy hour, transformer is stopped transport, and not action of pressure releaser made; When the Accident of Transformer energy was big, pressure releaser made also had little time action, fuel tank destroyed.This accident took place repeatedly to cause enormous economic loss.
Through analyzing, the reason that fuel tank destroys is 1, the accident point abrupt release goes out very big energy, makes the transformer oil exploded, gasification, and pressure increases severely, and is bigger tens times than service pressure, causes transformer oil to produce liquid the impact.2, can know by fluid mechanics; Liquid is under the effect of surge; The influence of factors such as the gravity of the pressure of liquid conduction liquid body, inertia force, quality, density, viscosity, friction loss, its inside pressure of particle everywhere has nothing in common with each other, and along with the variation of time and distance; Form the barometric gradient between accident point and pressure relief valve, also be attended by the impact endurance test shock ripple.3, accident point usually and the distance between the pressure relief valve far away.4, pressure relief valve be because the build-in attribute of performance of itself and oil can not be opened pressure release when accident takes place at once, when the local pressure of oil greater than fuel tank bear the limit time, fuel tank must be destroyed.
Summary of the invention:
The object of the invention provides a kind of large oil immersed power transformer, reactor oil tank anti-explosion pressure releasing system; Safe and effective release pressure; Can avoid because breaking of fuel tank caused fire for transformer; Can avoid simultaneously guaranteeing the operation of transformer long-term safety, solve the problems referred to above that exist in the background technology because fuel tank breaks and causes the pollution of transformer oil to environment.
Technical scheme of the present invention is: large oil immersed power transformer, reactor oil tank anti-explosion pressure releasing system are included in the high-low pressure both sides and the fuel tank both ends of fuel tank and respectively arrange the pressure relief valve of some quantity respectively; Quantity is looked length and the width size of fuel tank and is decided; Local for the fuel tank strength weak, the distance between the pressure releaser made suitably reduces.
The pressure relief valve that said fuel tank both ends are arranged lays respectively at 1/3 height and 3/4 height of fuel tank.
Adopt the present invention's setting pressure relief valve no longer on the oil tank of transformer case lid.
Large oil immersed power transformer, reactor oil tank anti-explosion pressure protective system specifically comprise inspection opening, collecting pipe, monitoring of leakage appearance, pneumostome, pressure releaser made, branch oil guide pipe; Inspection opening, collecting pipe, pressure releaser made, branch oil guide pipe are arranged on the fuel tank; Divide oil guide pipe one end to connect pressure releaser made; The other end connects collecting pipe, on collecting pipe, is provided with monitoring of leakage appearance and pneumostome.
Collecting pipe is compared with a minute oil-piping layout, and diameter is thicker.
According to can knowing to the analysis of oil tank of transformer accident damaged condition in recent years, the accident majority occur in 1/4 scope of fuel tank top with fuel tank bottom 1/3 scope in, and the damaged condition of fuel tank bottom is often serious than top.This is because there is pressure relief valve on top, joins pipe, oil conservator etc., certain decompression protection ability is arranged, and the pressure release ability of bottom is just very poor.In order to guarantee that Accident of Transformer takes place can effectively release dangerous pressure moment; The safety of protection fuel tank, the accident that prevents enlarges, and the routine that the present invention has changed pressure releaser made prevents method; I.e. placement force relief valve at fuel tank case lid two ends; But take multiple spot to arrange that emphasis is set up defences, the pressure release ability during with the increase Accident of Transformer.
Beneficial effect of the present invention and the difference of comparing with background technology: traditional fuel tank protection system is when the transformer internal short circuit fault; If pressure relief valve can not in time move; The huge energy that moment produces during short circuit will be destroyed oil tank of transformer; Cause transformer oil to leak, even breaking out of fire.Even if pressure relief valve in time moves, kept fuel tank avoid impaired, but also pollute the environment from the oil of pressure relief valve ejection at short notice, also maybe flame.And oil tank anti-explosion of the present invention system, when the transformer internal short circuit fault, a plurality of pressure relief valves move simultaneously, and the transformer oil that expands is rapidly imported in total collecting pipe through a plurality of minutes oil guide pipes; Both prevented that oil tank of transformer was impaired, simultaneously, collected the transformer oil of ejection again, and made environment avoid polluting.
Description of drawings:
Fig. 1 is an embodiment of the invention structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the end view of Fig. 1.
Among the figure: inspection opening 1, collecting pipe 2, monitoring of leakage appearance 3, pneumostome 4, pressure releaser made 5, branch oil guide pipe 6.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described further through embodiment.
In an embodiment; Large oil immersed power transformer, reactor oil tank anti-explosion pressure protective system comprise inspection opening 1, collecting pipe 2, monitoring of leakage appearance 3, pneumostome 4, pressure releaser made 5, divide oil guide pipe 6; Inspection opening, collecting pipe, pressure releaser made, branch oil guide pipe are arranged on the fuel tank; Divide oil guide pipe one end to connect pressure releaser made, the other end connects collecting pipe, on collecting pipe, is provided with monitoring of leakage appearance and pneumostome.Collecting pipe is compared with a minute oil-piping layout, and diameter is thicker.In the high-low pressure both sides of fuel tank and the fuel tank both ends each arrange that respectively the pressure relief valve of some quantity, quantity look the length of fuel tank and decide with the width size, for fuel tank strength weak place, the distance between the pressure releaser made suitably reduces.The pressure relief valve that said fuel tank both ends are arranged is positioned at 1/3 height and 3/4 height of fuel tank.Adopt the present invention's setting pressure relief valve no longer on the oil tank of transformer case lid.
When the present invention broke down in transformer inside, those near pressure relief valves 5 of distance fault point can be opened (less than 80ms) rapidly in the very short time, discharge the transformer oil that expands; Reduce the pressure of oil, thereby the protection oil tank of transformer can not ftracture, when pressure releaser made is opened to fuel tank; Send signal; Transformer is left from system break, the excision source of trouble, the accident that prevents further takes place.The oil of simultaneously each pressure releaser made being discharged is transported in the thick collecting pipe 2 of diameter through minute oil guide pipe 6, prevents the transformer oil contaminated environment, and collecting pipe is both as collecting the oily device that pressure relief valve is discharged, simultaneously to each minute collecting pipe mechanical support is provided.Because all pressure releaser mades are installed in branch collecting pipe inside,, be not easy to come to light if seepage oil takes place.For the seepage oil of monitoring pressure release, at the monitoring of leakage of the installation bottom appearance 3 of total collecting pipe, if pressure releaser made generation seepage is oily; Oil will collect in the monitoring of leakage appearance; When oil mass is increased to certain volume, the monitoring of leakage appearance will send alarm signal, and the prompting user in time handles.Collecting pipe top is provided with pneumostome 4, during the pressure releaser made draining, can reduce the oil extraction resistance like this, can prevent that outside foreign material and toy from getting into collecting pipe simultaneously.Inspection opening 1 can be used for observing and use when safeguarding.
Claims (1)
1. large oil immersed power transformer or reactor oil tank anti-explosion pressure releasing system; It is characterized in that being included in fuel tank high-low pressure both sides and fuel tank both ends each arrange the pressure relief valve of some quantity respectively; Quantity is looked length and the width size of fuel tank and is decided; Local for the fuel tank strength weak, the distance between the pressure relief valve suitably reduces, and the pressure relief valve that said fuel tank both ends are arranged lays respectively at 1/3 height and 3/4 height of fuel tank; This system specifically comprises inspection opening (1), collecting pipe (2), monitoring of leakage appearance (3), pneumostome (4), pressure relief valve (5), divides oil guide pipe (6); Inspection opening, collecting pipe, pressure relief valve, branch oil guide pipe are arranged on the fuel tank; Divide oil guide pipe one end to connect pressure relief valve; The other end connects collecting pipe, on collecting pipe, is provided with monitoring of leakage appearance and pneumostome; Said collecting pipe is compared with a minute oil guide pipe, and diameter is thicker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103092235A CN101697308B (en) | 2009-11-03 | 2009-11-03 | Large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103092235A CN101697308B (en) | 2009-11-03 | 2009-11-03 | Large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101697308A CN101697308A (en) | 2010-04-21 |
| CN101697308B true CN101697308B (en) | 2012-04-25 |
Family
ID=42142407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103092235A Active CN101697308B (en) | 2009-11-03 | 2009-11-03 | Large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101697308B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651267A (en) * | 2011-02-25 | 2012-08-29 | 上海休伯康特能源设备有限公司 | Oil explosion-proof and leak-proof amorphous alloy transformer |
| CN102315026B (en) * | 2011-07-08 | 2012-12-12 | 日新电机（无锡）有限公司 | Power-capacitor device connected by adopting oil-filled lead pipeline |
| CN103529352B (en) * | 2013-10-29 | 2015-09-30 | 国家电网公司 | The on-line monitoring system of short-circuit force suffered by fortune transformer can be monitored |
| CN112820506A (en) * | 2021-01-05 | 2021-05-18 | 广州丰浩贸易有限公司 | Power electrical transformer for urban rail transit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217259Y (en) * | 1994-11-17 | 1996-01-10 | 李健超 | Full sealed expansion heat radiator type oil conservator for transformer |
| CN2612040Y (en) * | 2003-04-01 | 2004-04-14 | 沈阳变压器研究所有限公司 | Pressure release valve |
| CN201562530U (en) * | 2009-11-05 | 2010-08-25 | 保定天威集团有限公司 | Large-size oil tank anti-explosion pressure releasing device for oil immersed type power transformer and reactor |
-
2009
- 2009-11-03 CN CN2009103092235A patent/CN101697308B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217259Y (en) * | 1994-11-17 | 1996-01-10 | 李健超 | Full sealed expansion heat radiator type oil conservator for transformer |
| CN2612040Y (en) * | 2003-04-01 | 2004-04-14 | 沈阳变压器研究所有限公司 | Pressure release valve |
| CN201562530U (en) * | 2009-11-05 | 2010-08-25 | 保定天威集团有限公司 | Large-size oil tank anti-explosion pressure releasing device for oil immersed type power transformer and reactor |
Non-Patent Citations (2)
| Title |
|---|
| JP昭57-20416A 1982.02.02 |
| JP特开平11-260650A 1999.09.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101697308A (en) | 2010-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101697308B (en) | Large oil immersed power transformer and reactor oil tank anti-explosion pressure releasing system | |
| EP3667677B1 (en) | Nuclear reactor cooling circuit with depressurisation valve | |
| CN201562530U (en) | Large-size oil tank anti-explosion pressure releasing device for oil immersed type power transformer and reactor | |
| CA3064921A1 (en) | Depressurisation valve | |
| CN104882246A (en) | Transformer protection device | |
| RU2729888C1 (en) | High-voltage electric equipment fire explosion prevention system | |
| CN106683826A (en) | High-safety oil-immersed type transformer | |
| CN203415386U (en) | Anti-inflowing and anti-explosion oiled paper capacitance type transformer sleeve | |
| CN208922817U (en) | A kind of transformer and its casing blast resistance construction | |
| CN203363316U (en) | Decompression valve used in serious accident of nuclear power station | |
| CN108266540A (en) | A kind of control method of safety-valve | |
| CN204246985U (en) | For the filter of high-voltage combined electrical apparatus filling apparatus SF6 gas | |
| CN109085063A (en) | A kind of pressure vessel pressure testing device | |
| CN105387029A (en) | Oil filter overhauling device | |
| CN204668079U (en) | Protection equipment for transformer | |
| CN105097190A (en) | Charged full-automatic flame failure protection device and protection method for oil immersed transformer | |
| CN211699888U (en) | Transformer and pressure release assembly thereof | |
| CN203423051U (en) | Anti-explosion firing oilpaper capacitive transformer sleeving | |
| CN204497041U (en) | A kind of can the oil-immersed power transformer that gushes of effective grease proofing wandering | |
| CN208985828U (en) | Fuel-saving type oil-immersed transformer | |
| CN113450999B (en) | Oil-immersed transformer explosion venting method based on weak point damage | |
| CN204333738U (en) | A kind of solid insulation ring main unit with blast resistance construction | |
| CN201252001Y (en) | Explosion prevention oil immersion inverted vertical mutual inductor | |
| Govindan | Transformer explosion prevention and fire protection-A peep into some relevant parameters | |
| CN204734987U (en) | Sealed oily vacuum degassing equipment of large -traffic little volume |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071051 BAODING, HEBEI PROVINCE TO: 071056 BAODING, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131115 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: Baoding Tianwei Group Co., Ltd. |