CN213905111U - Oiled paper condenser type transformer bushing - Google Patents
Oiled paper condenser type transformer bushing Download PDFInfo
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- CN213905111U CN213905111U CN202023139712.1U CN202023139712U CN213905111U CN 213905111 U CN213905111 U CN 213905111U CN 202023139712 U CN202023139712 U CN 202023139712U CN 213905111 U CN213905111 U CN 213905111U
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- transformer bushing
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Abstract
The utility model discloses an oiled paper condenser transformer bushing, including overcoat and the contact tube that is located the overcoat, be provided with transformer oil between contact tube and the overcoat, still include the manometer device, the manometer device is installed on the overcoat for detect transformer oil's oil pressure. The utility model discloses set up the manometer device, this manometer device is installed on the overcoat, and the effect of manometer lies in the oil pressure that detects the inside transformer oil of overcoat. Under normal conditions, the pressure of the transformer oil in the sleeve is between 0.05MPa and 0.2 MPa. When the oil pressure value detected by the pressure gauge device exceeds 0.2MPa, it indicates that SF6 gas leaks into the sleeve or the oil level in the sleeve is too high. When the oil pressure detected by the pressure gauge device is lower than 0.05MPa, the oil level inside the sleeve is low. Therefore, problems can be found in advance, faults can be eliminated, and major accidents can be prevented.
Description
Technical Field
The utility model relates to an electric power field, more specifically say, relate to an oiled paper condenser transformer sleeve pipe.
Background
The oiled paper condenser type transformer bushing is a transition connection device between a transformer and a GIS combined electrical appliance (gas insulated metal enclosed switchgear). The GIS combined electrical apparatus is filled with SF6 gas, and SF6 gas is an insulating inert gas. A portion of the oiled paper condenser transformer bushing is located in a GIS combiner, operating in SF6 gas. The other part of the oiled paper condenser transformer bushing is located in the transformer and runs in transformer oil.
Since a portion of the oiled paper condenser transformer bushing is located in the SF6 gas, there is a possibility that SF6 gas may leak into the oiled paper condenser transformer bushing, causing the oiled paper condenser transformer bushing to explode. In addition, if the oil level inside the oil paper condenser transformer bushing does not reach the standard, the normal operation of the oil paper condenser transformer bushing is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at ensuring to know SF6 gas leakage in time, or the oil level in the sleeve pipe is unusual to discharge the trouble in time, prevent the emergence of major accident. In order to achieve the above purpose, the utility model provides a following technical scheme:
the oil paper capacitive transformer bushing comprises an outer sleeve and a conductive pipe arranged in the outer sleeve, wherein transformer oil is arranged between the conductive pipe and the outer sleeve, and the oil paper capacitive transformer bushing further comprises a pressure gauge device which is arranged on the outer sleeve and used for detecting the oil pressure of the transformer oil.
Preferably, the manometer device is including manometer, valve body and the installation department that connects gradually, the manometer the inner chamber the valve body and the inner chamber of installation department communicates with each other, the installation department install in on the overcoat, just be provided with on the overcoat with the communicating through-hole of inner chamber of installation department.
Preferably, the installation department is first mounting flange, be provided with on the overcoat be used for with first mounting flange complex second mounting flange.
Preferably, the valve body is a ball valve.
Preferably, the overcoat includes the sleeve, telescopic one end is provided with first flange, first flange is used for being connected with the combined electrical apparatus, the telescopic other end is provided with second flange, second flange is used for being connected with the transformer, the manometer device is installed on telescopic barrel.
Preferably, the pressure gauge device further comprises an alarm, and the alarm is in communication connection with the pressure gauge device.
Preferably, the head of the outer sleeve is provided with a conductive sealing head, the head of the conductive tube extends into the conductive sealing head, and the conductive sealing head is connected with the outer sleeve through a bolt and sealed through a sealing gasket.
Preferably, the outer sleeve and the conductive tube are sealed by a sealing ring, and the sealing ring is far away from the conductive sealing head relative to the sealing gasket.
Preferably, the number of the sealing rings is two or more, and the two or more sealing rings are arranged along the axial direction of the conductive pipe.
Preferably, the outer sleeve comprises an oil conservator, the conductive sealing head is arranged at the head of the oil conservator, a strong pressure spring is arranged in the oil conservator, and the bottom of the strong pressure spring abuts against the bottom of the oil conservator.
Preferably, the bottom of the outer sleeve is provided with a base, the base is screwed on the bottom of the conductive tube, and a sealing element is arranged between the base and the outer sleeve.
Preferably, the base is an integral sealing base.
According to the above technical scheme, the utility model discloses set up the manometer device, this manometer device is installed on the overcoat, and the effect of manometer lies in the oil pressure that detects the inside transformer oil of overcoat. Under normal conditions, the pressure of the transformer oil in the sleeve is between 0.05MPa and 0.2 MPa. When the oil pressure value detected by the pressure gauge device exceeds 0.2MPa, it indicates that SF6 gas leaks into the sleeve or the oil level in the sleeve is too high. When the oil pressure detected by the pressure gauge device is lower than 0.05MPa, the oil level inside the sleeve is low. Therefore, problems can be found in advance, faults can be eliminated, and major accidents can be prevented.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.
Fig. 1 is a schematic structural diagram of an oiled paper condenser transformer bushing according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a pressure gauge device according to an embodiment of the present invention;
fig. 3 is a schematic sealing diagram of the conductive sealing head, the outer sleeve and the conduit according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a strong compression spring and an oil conservator according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base according to an embodiment of the present invention.
Wherein, 1 is the overcoat, 2 is the sleeve, 3 is first flange, 4 is the second flange, 5 is the manometer device, 6 is the conservator, 7 is electrically conductive sealing head, 8 is the base, 9 is the manometer, 10 is the transition joint, 11 is the ball valve, 12 is first mounting flange, 13 is the sealed pad, 14 is the sealing washer, 15 is the powerful pressure spring, 16 is the electric tube.
Detailed Description
The utility model discloses an oiled paper condenser transformer sleeve pipe, this sleeve pipe ensure can in time learn that SF6 is gaseous to take place to leak, perhaps the intraductal oil level of cover is unusual to in time the trouble of discharging prevents the emergence of major accident.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "bottom", "head", "base", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The utility model provides an oil paper condenser transformer sleeve pipe, hereinafter be referred to as the sleeve pipe for short, including overcoat 1 and conducting tube 16. The conductive tube 16 is disposed inside the outer jacket 1. A cavity is formed between the conductive tube 16 and the outer jacket 1, and transformer oil is provided in the cavity. The utility model discloses set up pressure gauge device 5 very much, this pressure gauge device 5 is installed on overcoat 1, and manometer 9's effect lies in detecting the oil pressure of the inside transformer oil of overcoat 1.
Under normal conditions, the pressure of the transformer oil in the sleeve is between 0.05MPa and 0.2 MPa. When the oil pressure value detected by the pressure gauge device 5 exceeds 0.2MPa, it indicates that SF6 gas leaks into the sleeve or the oil level in the sleeve is too high. When the oil pressure detected by the pressure gauge device 5 is lower than 0.05MPa, it indicates that the oil level inside the casing is too low. Therefore, problems can be found in advance, faults can be eliminated, and major accidents can be prevented.
The pressure gauge device 5 comprises a pressure gauge 9, a valve body and an installation part which are connected in sequence. The inner cavity of the pressure gauge 9, the inner cavity of the valve body and the inner cavity of the mounting part are communicated. The pressure gauge device 5 is mounted on the outer sleeve 1 through a mounting portion. The outer sleeve 1 is provided with a through hole which is communicated with the inner cavity of the mounting part. The transformer oil inside the outer sleeve 1 enters the inner cavity of the installation part through the through hole, then enters the inner cavity of the valve body, and then enters the inner cavity of the pressure gauge 9. Thus, the pressure gauge 9 can display the oil pressure of the transformer oil.
For the convenience of installation setting, the utility model discloses add between manometer 9 and valve body and established transition joint 10, transition joint 10 is used for connecting valve body and manometer 9.
The valve body is used for conducting or blocking the communication between the pressure gauge 9 and the inner part of the outer sleeve 1. When the valve body is opened, the transformer oil in the outer sleeve 1 can enter the cavity of the pressure gauge 9 through the valve body. When the valve body is closed, the transformer oil inside the casing 1 cannot enter the cavity with the pressure gauge 9. Further, the valve body may preferably be a ball valve 11. The ball valve 11 has the advantages of wear resistance, good sealing performance, light switch, long service life and the like.
The utility model discloses set up the installation department into first mounting flange 12, be provided with on the overcoat 1 with first mounting flange 12 complex second mounting flange. Thus, the installation of the pressure gauge device 5 is facilitated. The through hole on the outer sleeve 1 is communicated with the inner cavity of the second mounting flange.
The outer sleeve 1 of the utility model comprises a sleeve 2, or the sleeve 2 is a part of the outer sleeve 1. The sleeve 2 is provided with a first connecting flange 3 and a second connecting flange 4 at both ends. The first connecting flange 3 is used for connecting with the combined electrical apparatus. The second connecting flange 4 is used for connection to a transformer. Namely, the first connecting flange 3 and the head of the outer sleeve 1 are positioned inside the combined electrical apparatus, the second connecting flange 4 and the tail of the outer sleeve 1 are positioned inside the transformer, and the barrel part of the sleeve 2 is exposed outside. The utility model discloses set up manometer device 5 on the barrel of sleeve 2, so, the installation of the manometer device 5 of not only being convenient for does benefit to moreover and observes manometer device 5.
In order to make the operating personnel can in time obtain the oil pressure anomaly of overcoat 1 inside, the utility model discloses still set up the alarm, this alarm and 5 communication connection of manometer device. When the pressure gauge device 5 detects that the oil pressure is abnormal, the alarm is controlled to give an alarm.
The head of the outer sleeve 1 is provided with a conductive sealing head 7, and the head of the conductive tube 16 extends into the conductive sealing head 7. To prevent leakage of SF6 gas, a sealed connection between the contact tube 16 and the outer jacket 1 is defined. The specific mode of sealing connection is as follows: a gasket 13 is provided between the end face of the conductive seal head 7 and the end face of the outer jacket 1, and then the conductive seal head 7 is fastened to the outer jacket 1 by bolts. The sealing manner of the gasket 13 is a flat surface seal.
In order to further improve sealing performance, the utility model discloses still set up sealing washer 14 between overcoat 1 and contact tube 16, realize the sealed between contact tube 16 and overcoat 1 through sealing washer 14. And, the seal ring 14 is located below the sheet of gasket 13, so that even if a small amount of SF6 gas enters the interior of the jacket 1 through the gap between the conductive seal head 7 and the jacket 1, this portion of SF6 gas is blocked by the seal ring 14 and cannot enter further between the jacket 1 and the conductive tube 16. The sealing ring 14 is sealed in an axial direction. The utility model provides a sealing performance between overcoat 1 and the electrically conductive sealed head 7 has powerfully been ensured to plane seal and axial seal's combined seal mode.
It should be noted that, as the case may be, two or more seal rings 14 may be provided. Two or more sealing rings 14 are provided along the axial direction of the conductive pipe 16.
The outer jacket 1 comprises, in addition to the sleeve 2, a conservator 6 and porcelain. The conservator 6 is positioned above, the head of the conservator 6 is connected with the conductive sealing head 7, and the porcelain piece is arranged below the conservator 6. The porcelain comprises two parts which are connected by a sleeve 2. The oil conservator 6, the porcelain and the sleeve 2 need to be sealed. However, the operating temperature of the sleeve ranges from-40 ℃ to 105 ℃, and the sealing performance of the sleeve is affected because various parts of the sleeve expand with heat and contract with cold when the temperature changes. Therefore, the utility model discloses powerful pressure spring 15 has been set up. Powerful pressure spring 15 sets up in conservator 6, and the bottom of powerful pressure spring 15 supports the bottom at conservator 6, so, just forms decurrent pressure to conservator 6, and conservator 6 can extrude the porcelain downwards, and the porcelain will extrude spare part below the porcelain, so can form closely extrusion contact between conservator 6 and the part below conservator 6. Even if thermal expansion and contraction occur, the seal between the conservator 6 and the portion below the conservator 6 is not affected.
In addition, due to the arrangement of the strong compression spring 15, the sleeve still has reliable sealing under the rated SF6 gas pressure of 0.55MPa and the cantilever load tolerance value of 5000N.
The bottom of the jacket 1 is provided with a base 8, the base 8 is internally threaded, and the bottom of the conductive tube 16 is externally threaded. The base 8 is directly screwed on the bottom of the conductive tube 16, and the outer sleeve 1 is blocked. In addition, in order to ensure the sealing performance between the base 8 and the outer sleeve 1, the utility model discloses a sealing member has been set up between base 8 and outer sleeve 1. The utility model provides a seal receptacle formula seal receptacle as an organic whole does not have the guide hole on it to avoid SF6 gas to enter into the transformer through the guide hole.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. The oiled paper capacitive transformer bushing comprises an outer sleeve and a conductive pipe positioned in the outer sleeve, wherein transformer oil is arranged between the conductive pipe and the outer sleeve, and the oiled paper capacitive transformer bushing is characterized by further comprising a pressure gauge device, wherein the pressure gauge device is mounted on the outer sleeve and used for detecting the oil pressure of the transformer oil;
the manometer device is including the manometer, valve body and the installation department that connect gradually, the manometer the inner chamber the valve body and the inner chamber of installation department communicates with each other, the installation department install in on the overcoat, just be provided with on the overcoat with the communicating through-hole of inner chamber of installation department.
2. The oil paper condenser transformer bushing of claim 1, wherein the mounting portion is a first mounting flange, and a second mounting flange for mating with the first mounting flange is disposed on the outer sleeve.
3. The oilpaper capacitive transformer bushing of claim 1, wherein the valve body is a ball valve.
4. The oilpaper capacitive transformer bushing of claim 1, wherein the outer sleeve comprises a sleeve, one end of the sleeve is provided with a first connecting flange for connecting with a combined electrical apparatus, the other end of the sleeve is provided with a second connecting flange for connecting with a transformer, and the pressure gauge device is mounted on a cylinder of the sleeve.
5. The oilpaper condenser transformer bushing of claim 1, further comprising an alarm in communication with the pressure gauge device.
6. The oil-paper condenser transformer bushing according to claim 1, wherein the head of the outer sleeve is provided with a conductive sealing head, the head of the conductive tube extends into the conductive sealing head, and the conductive sealing head is connected with the outer sleeve through a bolt and sealed through a sealing gasket.
7. The oil-paper condenser transformer bushing of claim 6, wherein the outer sleeve is sealed with the conductive tube by a sealing ring, and the sealing ring is away from the conductive sealing head relative to the sealing gasket.
8. The oilpaper capacitive transformer bushing of claim 7, wherein the sealing rings are two or more, and two or more sealing rings are arranged along an axial direction of the conductive pipe.
9. The oiled paper capacitive transformer bushing of claim 6, wherein the outer casing comprises an oil conservator, the conductive sealing head is mounted at a head of the oil conservator, a strong compression spring is arranged in the oil conservator, and a bottom of the strong compression spring abuts against a bottom of the oil conservator.
10. The oilpaper capacitive transformer bushing of claim 1, wherein a base is disposed at a bottom of the outer sleeve, the base is screwed to a bottom of the conductive tube, and a sealing member is disposed between the base and the outer sleeve.
11. The oilpaper capacitive transformer bushing of claim 10, wherein the base is an integral sealed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139712.1U CN213905111U (en) | 2020-12-23 | 2020-12-23 | Oiled paper condenser type transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139712.1U CN213905111U (en) | 2020-12-23 | 2020-12-23 | Oiled paper condenser type transformer bushing |
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| Publication Number | Publication Date |
|---|---|
| CN213905111U true CN213905111U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023139712.1U Active CN213905111U (en) | 2020-12-23 | 2020-12-23 | Oiled paper condenser type transformer bushing |
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| Country | Link |
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| CN (1) | CN213905111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061869A (en) * | 2021-11-16 | 2022-02-18 | 广东电网有限责任公司 | Device and method for detecting damage position of oil conservator |
-
2020
- 2020-12-23 CN CN202023139712.1U patent/CN213905111U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061869A (en) * | 2021-11-16 | 2022-02-18 | 广东电网有限责任公司 | Device and method for detecting damage position of oil conservator |
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