CN203966752U - A kind of oil-filled transformer - Google Patents
A kind of oil-filled transformer Download PDFInfo
- Publication number
- CN203966752U CN203966752U CN201420407499.3U CN201420407499U CN203966752U CN 203966752 U CN203966752 U CN 203966752U CN 201420407499 U CN201420407499 U CN 201420407499U CN 203966752 U CN203966752 U CN 203966752U
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- Prior art keywords
- oil
- valve
- transformer
- storage bottle
- pressure relief
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Abstract
The utility model discloses a kind of oil-filled transformer, the upper end of valve plug is spacing by the valve body mouth of pipe, lower end stretch in valve body chamber and and valve body madial wall between leave gap, valve plug upper end and valve cover chamber are connected with elastic recoil mechanism, valve gap is set on valve body by valve plug upper end, and this valve gap is provided with scavenge duct, body wall is provided with pressure relief opening, pressure relief opening is communicated with oil storage bottle by return duct, oil storage bottle is provided with the louver(-vre) that connects outside air, oil storage bottle is made up of diapire and sidewall, sidewall is provided with liberation port, pressure relief opening is connected to liberation port, diapire is provided with the drain tap that is stored in the transformer oil in oil storage bottle for discharging, the height on the relative ground of liberation port is greater than the height on the relative ground of drain tap.This kind of pressure relief valve effectively prevented transformer oil backflow, effectively protected valve plug not to be subject to the erosion of transformer oil, effectively avoided valve plug normally not open and caused the thing of Explosion of Transformer or damage to occur.
Description
Technical field
The utility model relates to the circuit arrangement of a kind of power supply or distribution, and more particularly, it relates to a kind of oil-filled transformer.
Background technology
Transformer, is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core (magnetic core).Major function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing (magnetic saturation transformer) etc.
Oil-filled transformer includes device body (iron core, winding, insulation, lead-in wire), transformer oil, oil tank of transformer and cooling device, regulator, protective device and outlet casing tube.When oil-filled transformer is in operation while breaking down, because coil is overheated, make a part of transformer oil vaporization, in oil tank of transformer, pressure increases sharply, as release pressure not in time will cause fuel tank distortion or explosion.The mode of existing release pressure is that pressure relief valve is set on fuel tank.Arrange pressure relief valve discharged timely high pressure that fuel tank internal produces because coil is overheated other, effectively prevented the explosion of transformer.
The relief valve (CN102705542B) of current a kind of oil-filled transformer, comprise valve body and be arranged on the valve gap on valve body, described valve gap is provided with scavenge duct, described body wall is provided with pressure relief opening, pressure relief opening is communicated with oil storage bottle by return duct, oil storage bottle is communicated with outside air by the louver(-vre) being located in oil storage cover, described valve body mouth of pipe place is also provided with valve plug, the upper end of valve plug is spacing by the valve body mouth of pipe, lower end stretch in valve body chamber and and valve body madial wall between leave gap, valve plug lower end is also provided with sealing ring, between valve plug and valve gap, be provided with flexible restoring organ, described valve plug is in the time of the first extreme position, sealing ring is positioned at pressure relief opening top, valve plug is in the time of the second extreme position, the below of sealing ring in pressure relief opening.The corresponding like this technical problem that can bring is after transformer completes pressure release injection, the oil that is injected into oil storage bottle can be back to again in valve body, and when transformer oil refluxes, the impact of the flexible resetting device of valve plug, can be prior to transformer oil return, enter in valve body thereby stopped transformer oil, sealing ring is arranged on pressure relief opening place, can coordinate valve plug transformer oil to be blocked in to the position of the corresponding valve plug of valve body.The obstruction of transformer oil can cause valve plug to damage and make pressure relief valve lose the function of obstruction, moreover valve plug open each time or close the accumulation that all can cause transformer oil, after transformer oil overheap, can cause valve plug to increase the weight of, later stage valve plug can be difficult to normal unlatching, and the consequence of bringing will be also Explosion of Transformer.
Utility model content
The deficiency existing for prior art; the purpose of this utility model is to provide a kind of oil-filled transformer; this kind of pressure relief valve effectively prevented transformer oil backflow; effectively protect valve plug not to be subject to the erosion of transformer oil, effectively avoided valve plug normally not open and caused the thing of Explosion of Transformer or damage to occur
For achieving the above object, the utility model provides following technical scheme:
A kind of oil-filled transformer, comprise device body, transformer oil, oil tank of transformer and be located at the pressure relief valve on oil tank of transformer, described pressure relief valve comprises valve body, valve plug and valve gap, described valve body is located on oil tank of transformer and with oil tank of transformer UNICOM and is connected, the upper end of described valve plug is spacing by the valve body mouth of pipe, lower end stretch in valve body chamber and and valve body madial wall between leave gap, described valve plug upper end and valve cover chamber are connected with elastic recoil mechanism, described valve gap is set on valve body by valve plug upper end, and this valve gap is provided with scavenge duct, described body wall is provided with pressure relief opening, pressure relief opening is communicated with oil storage bottle by return duct, described oil storage bottle is provided with the louver(-vre) that connects outside air, described oil storage bottle is made up of diapire and sidewall, described sidewall is provided with liberation port, described pressure relief opening is connected to liberation port, described diapire is provided with the drain tap that is stored in the transformer oil in oil storage bottle for discharging, the height on the relative ground of described liberation port is greater than the height on the relative ground of drain tap, described drain tap is connected with fuel reserve tank by oil pipe, between described fuel reserve tank and drain tap, be provided with electromagnetically operated valve, described oil storage bottle is provided with level sensor near liberation port, described level sensor and electromagnetically operated valve couple.
Further improvement as technique scheme:
Described valve plug outer wall offers at least one location hole, in described location hole, be provided with stage clip and ball, described valve interior wall offers location notch 91 in pressure relief opening near a side of transformer, described valve plug is in the time of the first extreme position, described ball is in location notch 91, stage clip is conflicted and is connected between location notch 91 bottoms and ball, and described valve plug is in the time of the second extreme position, and described ball is compressed between location hole and the valve interior wall on pressure relief opening top.
Further be set to: described oil storage bottle is hollow semicircle shape setting, described drain tap is opened in the summit place of oil storage bottle, and described louver(-vre) is opened in the chord length place end face of oil storage bottle, and described liberation port is offered near louver(-vre).
Further, described oil storage bottle is provided with the support for being fixedly connected with oil tank of transformer.
By adopting technique scheme, at oil storage bottle sidewall, liberation port is set, at diapire, drain tap is set, liberation port and drain tap self-assembling formation difference in height like this, in the time that transformer internal pressure increases, valve plug is pushed up, expose pressure relief opening, make the pressure of transformer be released into oil storage bottle via pressure relief opening, transformer oil can be injected in oil storage bottle accordingly, because the height of drain tap is lower than the height of liberation port, the transformer oil ejecting enters into drain tap, and flow away via drain tap, can control valve be set at drain tap herein, the transformer oil ejecting is stored, when the position of the transformer oil storing in oil storage bottle rises to level sensor, whether level sensor can need to flow in fuel reserve tank by the solenoid control transformer oil coupling with it, allow and separate between fuel reserve tank and oil storage bottle, mainly to consider that the transformer oil from ejecting in oil tank of transformer can be with higher heat, first allow transformer oil connect cooling a period of time with outside air in oil storage bottle, be afraid of that again oil too much causes backflow, electromagnetically operated valve is set and enters into fuel reserve tank after cooling by transformer oil, and can effectively prevent that transformer oil from refluxing, be formed with difference in height owing to having between liberation port and drain tap, transformer oil can not enter in valve body through liberation port again, effectively prevent transformer oil backflow, effectively protect valve plug not to be subject to the erosion of transformer oil, do not have the deposition of transformer oil just can not increase the weight of the weight of valve plug, valve plug can both normally be opened in the time that each transformer is wanted pressure release, has effectively avoided valve plug normally not open and has caused the thing of Explosion of Transformer or damage to occur, after transformer releases pressure, first valve plug gets back to the state of clogging pressure relief opening via elastic recoil mechanism, waits for that pressure relief opening is unlocked next time.
Brief description of the drawings
Fig. 1 is the structural representation one of the utility model oil-filled transformer embodiment;
Fig. 2 is the structural representation of the utility model oil-filled transformer embodiment pressure relief valve;
Fig. 3 is the A portion enlarged drawing of Fig. 2.
Reference numeral:
1, oil tank of transformer; 2, conservator; 21, bracing frame; 22, oil guide pipe; 3, valve gap; 4, oil storage bottle; 41, diapire; 42, sidewall; 43, louver(-vre); 44, drain tap; 45, liberation port; 46, electromagnetically operated valve; 47, fuel reserve tank; 48, level sensor; 5, support; 6, return duct; 7, elastic recoil mechanism; 8, valve plug; 81, location hole; 82, stage clip; 83, ball; 9, valve body; 91, location notch; 92, pressure relief opening; 10, pressure relief valve.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model oil-filled transformer embodiment is described further.
A kind of oil-filled transformer, comprise device body, transformer oil, conservator 2, oil tank of transformer 1 and be located at the pressure relief valve 10 on oil tank of transformer 1, on oil tank of transformer, be provided with bracing frame 21, be used for supporting conservator 2, between conservator 2 and oil tank of transformer 1, be connected with oil guide pipe 22, described pressure relief valve 10 comprises valve body 9, valve plug 8 and valve gap, described valve body 9 is located on oil tank of transformer and with oil tank of transformer UNICOM and is connected, described in valve body 9, the upper end of valve plug 8 is spacing by valve body 9 mouths of pipe, lower end stretch in valve body 9 chambeies and and valve body 9 madial walls 42 between leave gap, between described valve plug 8 upper ends and valve gap 3, be connected with elastic recoil mechanism 7, described valve gap 3 is set on valve body 9 by valve plug 8 upper ends, and this valve gap 3 is provided with scavenge duct, described valve body 9 sidewalls 42 are provided with pressure relief opening 92, pressure relief opening 92 is communicated with oil storage bottle 4 by return duct 6, described oil storage bottle 4 is provided with the louver(-vre) 43 that connects outside air, described oil storage bottle 4 is made up of diapire 41 and sidewall 42, described sidewall 42 is provided with liberation port 45, described pressure relief opening 92 is connected to liberation port 45, described diapire 41 is provided with the drain tap 44 that is stored in the transformer oil in oil storage bottle 4 for discharging, the height on described liberation port 45 relative ground is greater than the height on drain tap 44 relative ground, described drain tap 44 is connected with fuel reserve tank 47 by oil pipe, between described fuel reserve tank 47 and drain tap 44, be provided with electromagnetically operated valve 46, described oil storage bottle 4 is provided with level sensor 48 near liberation port 45, described level sensor 48 and electromagnetically operated valve 46 couple.
By adopting technique scheme, at oil storage bottle 4 sidewalls 42, liberation port 45 is set, at diapire 41, drain tap 44 is set, liberation port 45 and drain tap 44 self-assembling formation differences in height like this, in the time that transformer internal pressure increases, valve plug 8 is pushed up, expose pressure relief opening 92, make the pressure of transformer be released into oil storage bottle 4 via pressure relief opening 92, transformer oil can be injected in oil storage bottle 4 accordingly, because the height of drain tap 44 is lower than the height of liberation port 45, the transformer oil ejecting enters into drain tap 44, and flow away via drain tap 44, the transformer oil ejecting is stored, in the time that the position of the transformer oil of oil storage bottle 4 interior storages rises to level sensor 48, whether level sensor 48 can need to flow in fuel reserve tank 47 by the electromagnetically operated valve 46 control transformer oil that couple with it, allow and separate between fuel reserve tank 47 and oil storage bottle 4, mainly to consider that the transformer oil from ejecting in oil tank of transformer can be with higher heat, first allow transformer oil connect cooling a period of time with outside air in oil storage bottle 4, be afraid of that again oil too much causes backflow, arrange after electromagnetically operated valve 46 makes transformer oil cooling and enter into fuel reserve tank 47, and can effectively prevent that transformer oil from refluxing, be formed with difference in height owing to having between liberation port 45 and drain tap 44, transformer oil can not enter in valve body 9 through liberation port 45 again, effectively prevent transformer oil backflow, effectively protect valve plug 8 not to be subject to the erosion of transformer oil, do not have the deposition of transformer oil just can not increase the weight of the weight of valve plug 8, valve plug 8 can both normally be opened in the time that each transformer is wanted pressure release, has effectively avoided valve plug 8 normally not open and has caused the thing of Explosion of Transformer or damage to occur, after transformer releases pressure, first valve plug 8 gets back to the state of clogging pressure relief opening 92 via elastic recoil mechanism 7, waits for that pressure relief opening is unlocked for 92 next times.Level sensor
Described valve plug 8 outer walls offer at least one location hole 81, in described location hole 81, be provided with stage clip 82 and ball 83, described valve body 9 inwalls offer location notch 91 in pressure relief opening 92 near a side of transformer, described valve plug 8 is in the time of the first extreme position, described ball 83 is in location notch 91, stage clip 82 is conflicted and is connected between location notch 91 bottoms and ball 83, described valve plug 8 is in the time of the second extreme position, and described ball 83 is compressed between location hole 81 and valve body 9 inwalls on pressure relief opening 92 tops.Valve plug 8 outer walls are offered location hole 81 stage clip 82 and ball 83 are installed, and ball 83 can be located with location notch 91 slippages, and at valve plug 8, in the first extreme position, ball 83, in location notch 91, presents fixed position state, and valve plug 8 is blocked pressure relief opening 92; In the time that transformer needs release pressure, ball 83 skids off in chute, more smooth and easy while rolling along valve body 9 inwalls, can be because of the sluggishness with the friction of valve body 9 inwalls, moreover after transformer earth pressure release completes, the return of valve plug 8 relative valve bodies 9 can be because be that ball 83 rolls, be more prone to be returned to the first extreme position, can discharge fast and effectively the pressure that transformer stores, effectively prevent Explosion of Transformer, safer.
Described oil storage bottle 4 is hollow semicircle shape setting, and described drain tap 44 is opened in the summit place of oil storage bottle 4, and described louver(-vre) 43 is opened in the chord length place end face of oil storage bottle 4, and described liberation port 45 is offered near louver(-vre) 43.Oil storage bottle 4 is arranged to hollow semicircle shape, there is the space of the oil in reserve of a depression, in its place, namely bottom, namely aforesaid summit place offers drain tap 44, at it near lathe place end face, namely offer liberation port 45 near the plane place of hemispheric oil storage bottle 4, between drain tap 44 and liberation port 45, form natural difference in height, transformer oil is from liberation port 45 is spurted into oil storage bottle 4, flow to the bottom of oil storage bottle 4, can not enter in valve body 9.
Described oil storage bottle 4 is provided with the support 5 for being fixedly connected with oil tank of transformer, is mainly the oil storage bottle 4 that is mounted with transformer oil in order to support, and for oil storage bottle 4 provides higher geographical position, effectively prevents that transformer oil backflow from affecting the normal work of transformer.Here the elastic recoil mechanism 7 said can make spring or shell fragment etc., and its two ends are fixed between valve plug 8 and valve gap 3 by seccotine.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. an oil-filled transformer, comprise device body, transformer oil, oil tank of transformer and be located at the pressure relief valve on oil tank of transformer, described pressure relief valve comprises valve body, valve plug and valve gap, described valve body is located on oil tank of transformer and with oil tank of transformer UNICOM and is connected, the upper end of described valve plug is spacing by the valve body mouth of pipe, lower end stretch in valve body chamber and and valve body madial wall between leave gap, described valve plug upper end and valve cover chamber are connected with elastic recoil mechanism, described valve gap is set on valve body by valve plug upper end, and this valve gap is provided with scavenge duct, described body wall is provided with pressure relief opening, pressure relief opening is communicated with oil storage bottle by return duct, described oil storage bottle is provided with the louver(-vre) that connects outside air, it is characterized in that: described oil storage bottle is made up of diapire and sidewall, described sidewall is provided with liberation port, described pressure relief opening is connected to liberation port, described diapire is provided with the drain tap that is stored in the transformer oil in oil storage bottle for discharging, the height on the relative ground of described liberation port is greater than the height on the relative ground of drain tap, described drain tap is connected with fuel reserve tank by oil pipe, between described fuel reserve tank and drain tap, be provided with electromagnetically operated valve, described oil storage bottle is provided with level sensor near liberation port, described level sensor and electromagnetically operated valve couple.
2. oil-filled transformer according to claim 1, it is characterized in that: described valve plug outer wall offers at least one location hole, in described location hole, be provided with stage clip and ball, described valve interior wall offers location notch in pressure relief opening near a side of transformer, described valve plug is in the time of the first extreme position, described ball is in location notch, stage clip is conflicted and is connected between location notch bottom and ball, described valve plug is in the time of the second extreme position, and described ball is compressed between location hole and the valve interior wall on pressure relief opening top.
3. oil-filled transformer according to claim 1 and 2, it is characterized in that: described oil storage bottle is hollow semicircle shape setting, described drain tap is opened in the summit place of oil storage bottle, and described louver(-vre) is opened in the chord length place end face of oil storage bottle, and described liberation port is offered near louver(-vre).
4. oil-filled transformer according to claim 3, is characterized in that: described oil storage bottle is provided with the support for being fixedly connected with oil tank of transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407499.3U CN203966752U (en) | 2014-07-22 | 2014-07-22 | A kind of oil-filled transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407499.3U CN203966752U (en) | 2014-07-22 | 2014-07-22 | A kind of oil-filled transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203966752U true CN203966752U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420407499.3U Expired - Fee Related CN203966752U (en) | 2014-07-22 | 2014-07-22 | A kind of oil-filled transformer |
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| Country | Link |
|---|---|
| CN (1) | CN203966752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766727A (en) * | 2018-05-16 | 2018-11-06 | 江西三龙电气有限公司 | A kind of furnace transformer |
-
2014
- 2014-07-22 CN CN201420407499.3U patent/CN203966752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766727A (en) * | 2018-05-16 | 2018-11-06 | 江西三龙电气有限公司 | A kind of furnace transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20170722 |