CN203927386U - A kind of installation for transformer inflated with nitrogen system - Google Patents
A kind of installation for transformer inflated with nitrogen system Download PDFInfo
- Publication number
- CN203927386U CN203927386U CN201420246507.0U CN201420246507U CN203927386U CN 203927386 U CN203927386 U CN 203927386U CN 201420246507 U CN201420246507 U CN 201420246507U CN 203927386 U CN203927386 U CN 203927386U
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- CN
- China
- Prior art keywords
- nitrogen
- pressure
- valve
- transformer
- conservator
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- 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.)
- Expired - Lifetime
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 302
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 152
- 238000009434 installation Methods 0.000 title claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 239000002775 capsule Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model provides a kind of installation for transformer inflated with nitrogen system, this system comprises: the first pipeline, second pipe, nitrogen bottle and nitrogen protecting system, nitrogen pressure when nitrogen protecting system is used for controlling from nitrogen bottle to conservator inflated with nitrogen, to control the pressure in conservator; Installation for transformer inflated with nitrogen system is arranged at transformer body outside; Wherein, the interface of nitrogen bottle is by the suction port conducting of the first pipeline and nitrogen protecting system, and the air outlet of nitrogen protecting system is connected with the first valve of described conservator by second pipe; On second pipe, be provided with the second valve, when the first valve and the second valve are during simultaneously on state, nitrogen bottle by the first pipeline, nitrogen protecting system, second pipe to inflated with nitrogen in conservator.By the utility model, can effectively avoid the oil in transformer body contact with air and polluted, thereby solve the problem of the insulating property reduction of transformer oil.
Description
Technical field
The utility model relates to transformer technology field, particularly relates to a kind of installation for transformer inflated with nitrogen system.
Background technique
At present, in transformer, be provided with conservator also referred to as oil conservater.The effect of installation for transformer is to regulate the expand with heat and contract with cold variation of oil level of transformer body internal cause, to keep the qualitative of oil level in transformer body.What the conservator inside on transformer had is provided with capsule, and what have is uneasy encapsulated.The conservator that capsule is not installed directly communicates with atmosphere by spiracle, keeps the oil level in transformer body with this.The conservator of capsule is installed, and is by pour air in capsule, by the air in capsule is communicated with resuscitation apparatus, keeps the oil level in transformer body.But most transformer all adopts encapsulated structure in conservator.
The above-mentioned scheme that capsule is not installed in conservator, the conservator on transformer directly communicates with atmosphere by spiracle.Although this scheme is installed simple,, easily make the oil in conservator contact with atmosphere, transformer oil is made moist or polluted by other dunghills, final, cause transformer oil ageing, reduce the insulating property of transformer oil.This scheme only has distribution transformer to use at present, does not adopt this scheme for the power transformer of high-pressure system.
The above-mentioned scheme that capsule is installed in conservator is the scheme that domestic high-tension electricity transformer generally adopts.This scheme is because the capsule in conservator is easily aging, and because capsule is positioned at conservator inside, therefore in the time that capsule is damaged, be not easy to be found, can cause air leakage in capsule in transformer oil, make transformer oil because contacting and polluted with air, reduce the insulating property of transformer oil.
Visible, adopt existing these the two kinds schemes that keep the oil level in transformer bodies, all exist transformer oil to contact and polluted with air, the problem of the insulating property of reduction transformer oil.
Model utility content
The utility model provides a kind of installation for transformer inflated with nitrogen system, keeps the transformer oil existing in the scheme of the oil level in transformer body to contact and polluted with air to solve current being used for, and reduces the problem of the insulating property of transformer oil.
In order to address the above problem, the utility model discloses a kind of installation for transformer inflated with nitrogen system, described system comprises: the first pipeline, second pipe, nitrogen bottle and nitrogen protecting system, described transformer comprises: transformer body and the conservator with the first valve, described nitrogen protecting system comprises: suction port and air outlet, nitrogen pressure when described nitrogen protecting system is used for controlling from described nitrogen bottle to described conservator inflated with nitrogen, to control the pressure in described conservator; Described installation for transformer inflated with nitrogen system is arranged at transformer body outside; Wherein, the interface of described nitrogen bottle is by the suction port conducting of described the first pipeline and described nitrogen protecting system, and the air outlet of described nitrogen protecting system is connected with the first valve of described conservator by described second pipe; On described second pipe, be provided with the second valve, when described the first valve and described the second valve are during simultaneously on state, described nitrogen bottle by described the first pipeline, described nitrogen protecting system, described second pipe to inflated with nitrogen in described conservator.
Preferably, described nitrogen protecting system also comprises: pressure switch, boost gauge, backing stage pressure reducers, rear class decompressor, pressure relief valve and the pressure gauge of giving vent to anger; Suction port, pressure switch, boost gauge, backing stage pressure reducers, rear class decompressor, the pressure relief valve of described nitrogen protecting system, give vent to anger pressure gauge and air outlet connect in turn.
Preferably, described pressure switch is for exchanging pressure switch, and the first setting valve that described pressure switch is set is 1.0 MPas, and the second setting valve that described rear class decompressor is set is 10 kPas.
Preferably, the measuring range of described pressure relief valve is 10 kPas to 20 kPas.
Preferably, the 3rd setting valve that described pressure relief valve is set is 15 kPas; When the air outlet of described nitrogen protecting system pressure is during higher than described the 3rd setting valve, described pressure relief valve unloads the air outlet Pressure Drop that is depressed into described nitrogen protecting system to described the 3rd setting valve.
Preferably, described pressure switch is connected with warning device, and in the time of the first setting valve that the force value of pressure switch side is set lower than described pressure switch, described warning device sends alarm signal.
Preferably, the enclosure material of the enclosure material of described nitrogen protecting system, described boost gauge and described in the manometric enclosure material of giving vent to anger be stainless steel.
Compared with prior art, the utlity model has following advantage:
Installation for transformer inflated with nitrogen system in the utility model, the nitrogen bottle by nitrogen protecting system control keeps the oil level in transformer body to being filled with nitrogen in installation for transformer, can effectively avoid the oil in transformer body to contact and polluted with air.Installation for transformer inflated with nitrogen system in of the present utility model is in the time of the oil level keeping in transformer body; control the pressure of nitrogen bottle to the nitrogen being filled with in conservator by nitrogen protecting system; and in the time that the pressure in conservator becomes large; discharge unnecessary pressure, ensure the stability of the pressure in conservator with this.Visible, the installation for transformer inflated with nitrogen system that the utility model provides, because the gas being filled with in conservator is nitrogen, therefore, can effectively avoid the oil in transformer body contact with air and polluted, thereby solve the problem of the insulating property reduction of transformer oil.
Brief description of the drawings
Fig. 1 is arranged on the structural representation on transformer according to a kind of installation for transformer inflated with nitrogen system of the utility model embodiment;
Fig. 2 is the workflow schematic diagram of the nitrogen protecting system shown in Fig. 1.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
With reference to Fig. 1, show according to a kind of installation for transformer inflated with nitrogen system of the embodiment of the present application and be arranged on the structural representation on transformer.
As shown in Figure 1, the installation for transformer inflated with nitrogen system in the present embodiment comprises: the first pipeline 102, second pipe 104, nitrogen bottle 106 and nitrogen protecting system 108.Transformer comprises: transformer body 110 and the conservator 112 with the first valve 1122, nitrogen protecting system 108 comprises: suction port 1082 and air outlet 1084.
Installation for transformer inflated with nitrogen system is arranged at transformer body 110 outsides; Wherein, the interface 1062 of nitrogen bottle 106 is suction port 1082 conductings with nitrogen protecting system 108 by the first pipeline 102, and the air outlet 1084 of nitrogen protecting system 108 is connected with the first valve 1122 of conservator 112 by second pipe 104; On second pipe 104, be provided with the second valve 1042, when the first valve 1122 and the second valve 1042 are during simultaneously on state, nitrogen bottle 106 by the first pipeline 102, nitrogen protecting system 106, second pipe 104 to inflated with nitrogen in conservator.Nitrogen pressure when nitrogen protecting system 108 is filled with nitrogen for controlling from nitrogen bottle 106 to conservator 112, to control the pressure in conservator 112.
When mounted; after installation for transformer scene vacuumizes; connect the pipeline between nitrogen protecting system and installation for transformer according to the mount scheme shown in Fig. 1; after installation, can prepare to be filled with nitrogen in installation for transformer, the control to nitrogen pressure in inflated with nitrogen process realizes by nitrogen protecting system.It should be noted that, the installation for transformer inflated with nitrogen system in the present embodiment, be filled with nitrogen in installation for transformer time, can directly be filled with nitrogen in conservator cavity, also can in the capsule in conservator, be filled with nitrogen, and the application does not do concrete restriction to this.Installation for transformer inflated with nitrogen system in the present embodiment is according to technician and user's demand, selected directly to the airing form that is filled with nitrogen in conservator cavity.
As shown in Figure 2, nitrogen protecting system 108 in the present embodiment not only comprises suction port 1082 and air outlet 1084, also comprises: pressure switch 1086, boost gauge 1088, backing stage pressure reducers 10810, rear class decompressor 10812, pressure relief valve 10814 and the pressure gauge 10816 of giving vent to anger; Suction port 1082, pressure switch 1086, boost gauge 1088, backing stage pressure reducers 10810, rear class decompressor 10812, the pressure relief valve 10814 of nitrogen protecting system 108, give vent to anger pressure gauge 10816 and air outlet 1084 connect in turn.
The suction port of nitrogen protecting system is connected with the interface of nitrogen bottle, air outlet is connected with the first valve of conservator by second pipe, in the time of inflated with nitrogen in installation for transformer, nitrogen in nitrogen bottle arrives pressure switch 1086 by the suction port of nitrogen protecting system, is the first setting valve of setting by pressure switch 1086 by the pressure setting of nitrogen; It is in order to improve reliability that pressure switch is set herein, and to avoid being filled with the overpressure in conservator, the pressure in nitrogen bottle is very large, for nitrogen protecting system, and installation for transformer, it is equivalent to high-pressure air source.When nitrogen is by after pressure switch 1086, arrive backing stage pressure reducers 10810 by boost gauge 1088 again, by backing stage pressure reducers, by the high-pressure air source pressure intermediate pressure that reduces pressure, now, after backing stage pressure reducers is processed, the pressure of nitrogen has been reduced to a kPa magnitude; Be the second setting valve of setting again by the pressure setting of nitrogen by rear class decompressor 10812; And then again determine by pressure relief valve 10814 whether the pressure of nitrogen meets the 3rd setting valve that pressure relief valve is set, if satisfied by the nitrogen after adjusting being filled with in second pipe 104 by give vent to anger pressure gauge 10816 and air outlet 1084, by second pipe 104 to nitrogen injection in conservator 112.
Wherein, pressure switch in the present embodiment 1086 is for exchanging pressure switch, and the first setting valve that pressure switch 1086 is set is 1.0 MPas, and the second setting valve that rear class decompressor 10812 is set is 10 kPas.The measuring range of pressure relief valve 10814 is 10 kPas to 20 kPas, and the 3rd setting valve that pressure relief valve is set is 15 kPas.The measuring range of boost gauge 1088 is 0 to 25 MPa, and the measuring range of the pressure gauge 10816 of giving vent to anger is-0.1 MPa to 0.06 MPa, and the model of suction port and air outlet is M16 × 1.5 millimeter.It should be noted that; the setting valve that each device in nitrogen protecting system in the present embodiment is set is not limited to value cited in the present embodiment; those skilled in the art, in the process of practical application, can arrange according to the actual requirements, and the application does not do concrete restriction to this.
In the present embodiment, why on pressure switch 1084, rear class decompressor 10812 and pressure relief valve 10814, set setting valve, in order to ensure that the nitrogen in installation for transformer keeps minute-pressure automatically, to prevent extraneous humid air intrusion, the nitrogen being filled with in conservator plays protection against the tide, oxidation resistant effect.
Wherein, the object of setting the first setting valve for pressure switch 1084 is to improve the reliability of whole nitrogen protecting system.Pressure switch 1084 is connected with warning device, and when the force value of pressure switch side is during lower than the first setting valve, warning device sends alarm signal, illustrates that the nitrogen pressure in nitrogen bottle is now not enough, needs to change nitrogen bottle.In the time that pressure switch records nitrogen pressure that nitrogen is filled with suction port and is greater than the first setting valve of setting, nitrogen bottle can be filled with to suction port after nitrogen pressure be controlled at a steady state value, ensure the stability of pressure in conservator with this.
Setting the first setting valve object for rear class decompressor 10812 is that high-pressure air source is adjusted as fixing value, constant to the nitrogen pressure being filled with in conservator to ensure nitrogen bottle.For pressure relief valve 10814 is set the 3rd setting valve, object is the pressure stability in order to ensure 1084 places, air outlet in nitrogen protecting system 108.When the oily Yin Wendu in transformer body raises and when volumetric expansion; now the 1084 pressure families, air outlet of nitrogen protecting system 108 raise; in the time that pressure is increased to higher than the 3rd setting valve; pressure relief valve is automatic pressure-relieving; to air outlet Pressure Drop to the three setting valves of nitrogen protecting system; with this, pressure in installation for transformer is finely tuned, ensure device security.
After nitrogen bottle, pipeline, each valve and nitrogen protecting system in installation for transformer inflated with nitrogen system in the present embodiment installs; before formal use; need to investigate the tightness of whole system; concrete investigation is as follows: slowly open nitrogen bottle, the first valve and the second valve, to the installation for transformer inflation of pressurizeing.While reaching the inflation pressure of regulation, should close nitrogen bottle, and checked and recorded ducted force value in 24 hours.As the leak-down rate of gas exceedes 1500 kPas; so just tackle connecting tube, the each seal point of transformer body checks; after stopping a leak, just nitrogen bottle can be opened; nitrogen protecting system is put into operation and make nitrogen in conservator automatically keep minute-pressure; to prevent extraneous humid air intrusion, play protection against the tide, oxidation resistant effect.
The enclosure material of the enclosure material of the nitrogen protecting system 108 in the present embodiment, the enclosure material of boost gauge 1088 and the pressure gauge 10816 of giving vent to anger is stainless steel, avoids shell corrosion.
The installation for transformer inflated with nitrogen system providing by the present embodiment, keeps the oil level in transformer body to being filled with nitrogen in installation for transformer, can effectively avoid the oil in transformer body to contact and polluted with air.Installation for transformer inflated with nitrogen system in the present embodiment, controls the pressure of nitrogen bottle to the nitrogen being filled with in conservator by nitrogen protecting system, and in the time that the pressure in conservator becomes large, discharges unnecessary pressure, ensures the stability of the pressure in conservator with this.Visible, the installation for transformer inflated with nitrogen system that the present embodiment provides, because the gas being filled with in conservator is nitrogen, therefore, can effectively avoid the oil in transformer body to contact and polluted with air, thereby solve the problem of the insulating property reduction of transformer oil.
The unique design scheme of the installation for transformer inflated with nitrogen that the utility model provides, its feature comprises by nitrogen protecting system and realizes pressure control and realize the protection to transformer oil by the gas pressure detecting in the nitrogen bottle that is connected with conservator nitrogen.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and other embodiments' difference, between each embodiment identical similar part mutually referring to.
Above a kind of installation for transformer inflated with nitrogen system provided by the utility model is described in detail, applied specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (7)
1. an installation for transformer inflated with nitrogen system, it is characterized in that, described system comprises: the first pipeline, second pipe, nitrogen bottle and nitrogen protecting system, described transformer comprises: transformer body and the conservator with the first valve, described nitrogen protecting system comprises: suction port and air outlet, nitrogen pressure when described nitrogen protecting system is used for controlling from described nitrogen bottle to described conservator inflated with nitrogen, to control the pressure in described conservator;
Described installation for transformer inflated with nitrogen system is arranged at transformer body outside; Wherein, the interface of described nitrogen bottle is by the suction port conducting of described the first pipeline and described nitrogen protecting system, and the air outlet of described nitrogen protecting system is connected with the first valve of described conservator by described second pipe;
On described second pipe, be provided with the second valve, when described the first valve and described the second valve are during simultaneously on state, described nitrogen bottle by described the first pipeline, described nitrogen protecting system, described second pipe to inflated with nitrogen in described conservator.
2. system according to claim 1, is characterized in that, described nitrogen protecting system also comprises: pressure switch, boost gauge, backing stage pressure reducers, rear class decompressor, pressure relief valve and the pressure gauge of giving vent to anger; Suction port, pressure switch, boost gauge, backing stage pressure reducers, rear class decompressor, the pressure relief valve of described nitrogen protecting system, give vent to anger pressure gauge and air outlet connect in turn.
3. system according to claim 2, is characterized in that, described pressure switch is for exchanging pressure switch, and the first setting valve that described pressure switch is set is 1.0 MPas, and the second setting valve that described rear class decompressor is set is 10 kPas.
4. system according to claim 2, is characterized in that, the measuring range of described pressure relief valve is 10 kPas to 20 kPas.
5. system according to claim 2, its feature with, the 3rd setting valve that described pressure relief valve is set is 15 kPas; When the air outlet of described nitrogen protecting system pressure is during higher than described the 3rd setting valve, described pressure relief valve unloads the air outlet Pressure Drop that is depressed into described nitrogen protecting system to described the 3rd setting valve.
6. system according to claim 2, is characterized in that, described pressure switch is connected with warning device, and in the time of the first setting valve that the force value of pressure switch side is set lower than described pressure switch, described warning device sends alarm signal.
7. system according to claim 2, is characterized in that, the enclosure material of described nitrogen protecting system, the enclosure material of described boost gauge and described in the manometric enclosure material of giving vent to anger be stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246507.0U CN203927386U (en) | 2014-05-14 | 2014-05-14 | A kind of installation for transformer inflated with nitrogen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246507.0U CN203927386U (en) | 2014-05-14 | 2014-05-14 | A kind of installation for transformer inflated with nitrogen system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203927386U true CN203927386U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246507.0U Expired - Lifetime CN203927386U (en) | 2014-05-14 | 2014-05-14 | A kind of installation for transformer inflated with nitrogen system |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227253A (en) * | 2016-09-13 | 2016-12-14 | 山东电力设备有限公司 | A kind of device that transformator is carried out gas pressure on-line monitoring and automatic inflating device |
| CN106292762A (en) * | 2016-09-13 | 2017-01-04 | 山东电力设备有限公司 | A kind of method that transformator is carried out gas pressure on-line monitoring and automatic inflating device |
| CN106683835A (en) * | 2017-02-27 | 2017-05-17 | 山东电力设备有限公司 | Nitrogen-charged transformer oil storage cabinet |
| CN108050374A (en) * | 2017-12-25 | 2018-05-18 | 上海新奥新能源技术有限公司 | A kind of storage tank and LNG air supply systems |
-
2014
- 2014-05-14 CN CN201420246507.0U patent/CN203927386U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106227253A (en) * | 2016-09-13 | 2016-12-14 | 山东电力设备有限公司 | A kind of device that transformator is carried out gas pressure on-line monitoring and automatic inflating device |
| CN106292762A (en) * | 2016-09-13 | 2017-01-04 | 山东电力设备有限公司 | A kind of method that transformator is carried out gas pressure on-line monitoring and automatic inflating device |
| CN106683835A (en) * | 2017-02-27 | 2017-05-17 | 山东电力设备有限公司 | Nitrogen-charged transformer oil storage cabinet |
| CN108050374A (en) * | 2017-12-25 | 2018-05-18 | 上海新奥新能源技术有限公司 | A kind of storage tank and LNG air supply systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |
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| CX01 | Expiry of patent term |