CN103377802A - Internal metal bellow expansion oil conservator with self-protection function - Google Patents
Internal metal bellow expansion oil conservator with self-protection function Download PDFInfo
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- CN103377802A CN103377802A CN2012101075877A CN201210107587A CN103377802A CN 103377802 A CN103377802 A CN 103377802A CN 2012101075877 A CN2012101075877 A CN 2012101075877A CN 201210107587 A CN201210107587 A CN 201210107587A CN 103377802 A CN103377802 A CN 103377802A
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- oil
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- oil conservator
- self
- metal bellow
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Abstract
The invention discloses an internal metal bellow expansion oil conservator with a self-protection function. The internal metal bellow expansion oil conservator is applied to a power system, is used with an oil-immersed power transformer and power equipment and mainly comprises an internal oil conservator, a control switch, an oil drain pipeline and an oil drain valve. The internal metal bellow expansion oil conservator is characterized in that the oil drain pipeline and the oil drain valve are connected onto an oil delivery pipeline of the oil conservator, and the control switch is mounted in the oil conservator and is connected with a power source and the oil drain valve by conducting wires, so that an automatic oil drain and self-protection system of the internal metal bellow expansion oil conservator is formed. A working principle of the internal metal bellow expansion oil conservator includes that when an oil level of the oil conservator exceeds an upper limit, the oil drain valve is turned on to be automatically opened by the aid of the control switch, so that transformer oil in the oil conservator is drained via the oil drain pipeline; when the oil level of the oil conservator is lower than the upper limit, the control switch stops being in contact with the oil drain valve, so that the oil drain valve is closed, and the system is in a normal state again. The internal metal bellow expansion oil conservator has the advantages that the oil drain valve in the self-protection system can be an optional valve, can be automatically opened in a reciprocating manner and can automatically drain the oil, and accordingly the oil conservator is protected from being damaged.
Description
Technical field:
The present invention relates to a kind of inner oil type metal bellow expansion oil storage tank that is applied to have in the electric power system self-protection function, exactly is that the oil conservator oil level changes the self-protection system that realizes automatic draining when surpassing limes superiors.
Background technology:
Oil conservator is as the significant components of Transformer, and its effect is the variation of the oily compensator transformer oil volume of protection transformer.The ripple core body splendid attire transformer oil of inner oil type metal bellow expansion oil storage tank inside, by the expansion of ripple core body with shrink the variation of compensator transformer oil volume, under normal operating position, the volume of oil conservator design can satisfy the needs of transformer oil volume maximum swelling amount fully, guarantees the safe operation of transformer.
But, under emergency case, when break down in voltage transformer system inside, oil temperature sharply raises, and oil pressure increases, and the oil volume of transformer changes the setting range that exceeds oil conservator, make the oil conservator oil level surpass the limes superiors set point, in the situation that personnel fail in time to process at the scene, the damage of oil conserver ripple core body will be caused, the normal operation of system can not be guaranteed.
In addition, by other reason, the oil conservator oiling is too high when surpassing higher extreme value, and the ripple core body of oil conservator is damaged, and causes certain economic loss.Therefore, development self-protection oil conservator, oil conservator noumenon function perfect still simultaneously is not the needs of power industry intelligent power network development yet.
Summary of the invention:
Deficiency in view of above-mentioned prior art existence; the purpose of this invention is to provide a kind of inner oil type metal bellow expansion oil storage tank with self-protection function; when oil level changes in a single day above limes superiors, can prevent that by automatic draining oil conservator from damaging, the safe operation of protection oil conservator and transformer.
The object of the present invention is achieved like this, and the present invention is a kind of inner oil type metal bellow expansion oil storage tank with self-protection function, is applied in the electric power system, is oil-immersed power transformer and power equipment configuration use.It mainly is made of inner oil type oil storage cabinet, control switch, drain line, gate gurgle valve.Its design feature is: be connected with drain line and gate gurgle valve on the oil conservator pipeline road, control switch is installed in the oil conservator, with itself and power supply and gate gurgle valve UNICOM, form the automatic draining self-protection of inner oil type metal bellow expansion oil storage tank system with wire.Its operation principle is: when the oil conservator oil level surpassed limes superiors, control switch was connected gate gurgle valve and is automatically opened, and transformer oil in the oil conservator is discharged through drain line.When the oil conservator oil level was lower than the limes superiors position, control switch disengaged gate gurgle valve and cuts out, and normal condition is recovered by system.Gate gurgle valve also can adopt any valve to realize back and forth automatically unlatching, automatic draining in the self-protection system.The protection oil conservator is not damaged.
Inner oil type metal bellow expansion oil storage tank with self-protection function; during normal operation; the oil conserver ripple core body expands along with the oil temperature variation of transformer and shrinks the variation that compensates oil volume; when breaking down or oil conservator oiling when too high in transformer inside; make oil level surpass the limes superiors position; oil conservator self-protection system begins action, and control switch is connected gate gurgle valve and automatically opened draining, prevents that oil conservator from damaging.
Advantage of the present invention is: when temperature of oil in transformer changed the maximum compensation volume that surpasses oil conservator, oil conservator self-protection system can realize the automatic reciprocating type draining, prevented that effectively oil conservator from damaging, and guarantees the normal operation of transformer.Under normal operating position, oil conservator can satisfy the requirement of transformer fully, does not affect the use function of oil conservator.
Below in conjunction with accompanying drawing the present invention is explained.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Wherein: 1, inner oil type oil storage cabinet; 2, control switch
3, drain line 4, gate gurgle valve
Embodiment:
By accompanying drawing as can be known, the present invention is mainly by inner oil type oil storage cabinet 1; Control switch 2; Drain line 3; Gate gurgle valve 4 consists of.Pipeline road at inner oil type oil storage cabinet is connected with drain line 3 and gate gurgle valve 4; control switch 2 is installed in inner oil type oil storage cabinet 1; with itself and power supply and gate gurgle valve 4 UNICOMs, form the automatic draining self-protection of inner oil type metal bellow expansion oil storage tank system with wire.
Transformer is when normal operation, and the control switch 2 in the oil conservator 1 is off-state; Gate gurgle valve 4 is in closed condition, and the compensation volume of oil conservator changes along with the variation of temperature of oil in transformer.When break down or cause the oil conservator oil level to surpass the limes superiors position by other factors in transformer inside, ripple core body upper contact head touches closed with control switch 2 mutually, connect gate gurgle valve 4 and make it the moment unlatching, transformer oil is discharged outside the oil conserver ripple core bodys through drain line 3.When the oil conservator oil level was lower than the limes superiors position, control switch 2 disengaged gate gurgle valve 4 and cuts out, and normal condition is recovered by system.Relief valve 4 can back and forth be opened draining automatically, prevents that oil conservator from damaging, and guarantees the security of operation of transformer.
Claims (2)
1. inner oil type metal bellow expansion oil storage tank with self-protection function; it is characterized in that: be connected with drain line and gate gurgle valve on the oil conservator pipeline road; control switch is installed in the oil conservator; with itself and power supply and gate gurgle valve UNICOM, form the automatic draining self-protection of inner oil type metal bellow expansion oil storage tank system with wire.
2. the inner oil type metal bellow expansion oil storage tank with self-protection function as claimed in claim 1 is characterized in that: gate gurgle valve also can adopt that any valve is realized back and forth automatically opening, automatic draining in the self-protection system.The protection oil conservator is not damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101075877A CN103377802A (en) | 2012-04-13 | 2012-04-13 | Internal metal bellow expansion oil conservator with self-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101075877A CN103377802A (en) | 2012-04-13 | 2012-04-13 | Internal metal bellow expansion oil conservator with self-protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103377802A true CN103377802A (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101075877A Pending CN103377802A (en) | 2012-04-13 | 2012-04-13 | Internal metal bellow expansion oil conservator with self-protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN103377802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700452A (en) * | 2015-11-13 | 2016-06-22 | 沈阳海为电力装备股份有限公司 | Remote monitoring system based on internet and intelligent oil conservator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3448219A (en) * | 1966-12-26 | 1969-06-03 | Shinji Nakazawa | Pressure balancing conservator for a transformer |
| JP2002184623A (en) * | 2000-12-15 | 2002-06-28 | Daihen Corp | Fully equipped portable transformer and its transportation method |
| CN201294138Y (en) * | 2008-11-03 | 2009-08-19 | 长沙泰时电气设备有限公司 | Combined metal corrugated oil conservator |
| CN201383408Y (en) * | 2009-03-11 | 2010-01-13 | 于洪涛 | Multi-functional vertical external oil metal corrugated oil conservator |
| CN202093935U (en) * | 2011-04-21 | 2011-12-28 | 沈阳海为电力设备有限公司 | Split type oil conservator |
| CN202585018U (en) * | 2012-04-13 | 2012-12-05 | 沈阳海为电力设备有限公司 | Internal-oil metal corrugated swollen oil conservator with self-protection function |
-
2012
- 2012-04-13 CN CN2012101075877A patent/CN103377802A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3448219A (en) * | 1966-12-26 | 1969-06-03 | Shinji Nakazawa | Pressure balancing conservator for a transformer |
| JP2002184623A (en) * | 2000-12-15 | 2002-06-28 | Daihen Corp | Fully equipped portable transformer and its transportation method |
| CN201294138Y (en) * | 2008-11-03 | 2009-08-19 | 长沙泰时电气设备有限公司 | Combined metal corrugated oil conservator |
| CN201383408Y (en) * | 2009-03-11 | 2010-01-13 | 于洪涛 | Multi-functional vertical external oil metal corrugated oil conservator |
| CN202093935U (en) * | 2011-04-21 | 2011-12-28 | 沈阳海为电力设备有限公司 | Split type oil conservator |
| CN202585018U (en) * | 2012-04-13 | 2012-12-05 | 沈阳海为电力设备有限公司 | Internal-oil metal corrugated swollen oil conservator with self-protection function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700452A (en) * | 2015-11-13 | 2016-06-22 | 沈阳海为电力装备股份有限公司 | Remote monitoring system based on internet and intelligent oil conservator |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |