CN115524078A - Oil conservator transformer and positive pressure sealing detection device thereof - Google Patents
Oil conservator transformer and positive pressure sealing detection device thereof Download PDFInfo
- Publication number
- CN115524078A CN115524078A CN202211171693.1A CN202211171693A CN115524078A CN 115524078 A CN115524078 A CN 115524078A CN 202211171693 A CN202211171693 A CN 202211171693A CN 115524078 A CN115524078 A CN 115524078A
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- Prior art keywords
- transformer
- gear box
- oil conservator
- detection device
- transmission
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 66
- 238000012360 testing method Methods 0.000 abstract description 14
- 239000003921 oil Substances 0.000 description 63
- 238000005259 measurement Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002775 capsule Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000010734 process oil Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a positive pressure sealing detection device for an oil conservator transformer, which comprises: a drive motor; install the first transmission assembly in driving motor one side, first transmission assembly includes: the transmission gear box is in transmission connection with the driving motor, the end gear boxes are respectively connected to two opposite sides of the transmission gear box, and the lifting screw rod is connected to the end gear boxes; the supporting plate is connected to the lifting screw rods at the two end sides; and a pressure sensor mounted on the pallet. The invention also discloses an oil conservator transformer. The oil conservator transformer and the positive pressure sealing detection device thereof can be adapted to the top side in the oil conservator, and the positive pressure sealing detection test of the oil conservator transformer can be automatically completed without intervention; the structure is simple, the operation is convenient and fast, and the device can be used repeatedly.
Description
Technical Field
The invention relates to the field of transformer detection equipment, in particular to an oil conservator transformer and a positive pressure seal detection device thereof.
Background
In the prior art, in order to prevent oil leakage in the operation process of the transformer, a sealing test of the transformer needs to be carried out after the installation and overhaul of accessories of the transformer, and the sealing performance of a box body, a component and a connecting part of the transformer is detected. The power industry standard DL/T264-2012 ' guide rule for field sealing test of oil-immersed power transformers (reactors) ' of the people's republic of China also has the regulation for sealing test of oil conservator transformers.
The existing oil conservator transformer sealing test has the following technical problems:
1. the workload is large, and the detection efficiency is low. When the existing sealing test is carried out on the transformer of the oil conservator, a process oil conservator needs to be installed at the same height position, a large number of matched facilities such as a mechanical lifting appliance, a special framework, extra transformer oil and an inflating tool need to be used, and the workload is greatly increased. Meanwhile, with the development of cities, the design of a transformer substation is smaller and smaller, and the space of a transformer room does not have enough space for installing the process oil conservator.
2. Poor economy and difficult cost control. Because the special process conservator, nitrogen and the like which are needed to be used in the detection process cannot be recycled after being used, the material cost is caused in each operation, the service life of the capsule is influenced by nitrogen pressurization, and the expansion and the breakage of the capsule can be caused in the pressurization process.
3. The operation process is complicated. The capsule type oil conservator transformer needs to remove the breather of the oil conservator, the breather is connected with the pipe to pressurize, and the breather is reinstalled after the work is finished; the corrugated oil conservator needs to be newly provided with a small-sized capsule oil conservator, and the process is complicated and consumes long time.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oil conservator transformer and a positive pressure seal detection device thereof, which can be adaptively installed at the top of an oil conservator and automatically complete a positive pressure seal detection test of the oil conservator transformer without intervention; the structure is simple, the operation is convenient and fast, and the device can be used repeatedly.
In order to solve the technical problem, the invention provides a positive pressure sealing detection device for an oil conservator transformer, which comprises: a drive motor; install the first drive assembly in driving motor one side, first drive assembly includes: the transmission gear box is in transmission connection with the driving motor, the end gear boxes are respectively connected to two opposite sides of the transmission gear box, and the lifting screw rod is connected to the end gear boxes; the supporting plate is connected to the lifting screw rods at the two end sides; and a pressure sensor mounted on the pallet, wherein: the driving motor is started, the supporting plate is linked to ascend or descend through the transmission gear box, the end gear box and the lifting screw rod so as to be close to or far away from the top of the corrugated core body of the oil conservator at a constant speed, and the internal pressure of the oil conservator is obtained through detecting the numerical value of the pressure sensor.
Wherein, still include: the measurement and control assembly is respectively connected with the driving motor and the pressure sensor, wherein the measurement and control assembly controls the driving motor to be started or stopped, and the measurement and control assembly detects whether oil leakage exists at each sealing part of the transformer of the oil conservator by acquiring pressure data of the pressure sensor.
Wherein, still include: the second transmission assembly is arranged on the other side of the driving motor, and the structure of the second transmission assembly is symmetrical to that of the first transmission assembly;
wherein, between transmission gear box and the end gear box, use transmission connecting rod transmission connection between driving motor and the transmission gear box respectively.
The driving motor is provided with a first assembling surface, the transmission gear box is provided with a second assembling surface, and the end gear box is provided with a third assembling surface; first assembly surface, second assembly surface and third assembly surface are located the coplanar to the sealed detection device of assembly batch oil tank transformer malleation is at the top side of batch oil tank transformer cabinet internal portion.
Wherein, the driving motor, the transmission gear box and the end gear box are respectively in block shape.
Wherein the end gear boxes on opposite sides of the transmission gear box are arranged symmetrically.
In order to solve the technical problem, the invention also discloses an oil conservator transformer, and the positive pressure sealing detection device of the oil conservator transformer is arranged on the top side inside the transformer cabinet body of the oil conservator.
The oil conservator transformer and the positive pressure sealing detection device thereof have the following beneficial effects: oil conservator transformer malleation seals detection device includes: a drive motor; install the first transmission assembly in driving motor one side, first transmission assembly includes: the transmission gear box is in transmission connection with the driving motor, the end gear boxes are respectively connected to two opposite sides of the transmission gear box, and the lifting screw rod is connected to the end gear boxes; the supporting plate is connected to the lifting screw rods at the two end sides; and a pressure sensor mounted on the pallet, wherein: starting a driving motor, linking the supporting plate to ascend or descend through a transmission gear box, an end gear box and a lifting screw rod so as to be close to or far away from the top of the corrugated core body of the oil conservator at a constant speed, acquiring the internal pressure of the oil conservator through detecting the numerical value of a pressure sensor, and automatically completing a positive pressure sealing detection test of an oil conservator transformer without intervention; the structure is simple, the operation is convenient and fast, and the device can be used repeatedly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a positive pressure seal detection device of a conservator transformer according to an embodiment of the present invention.
Fig. 2 is a schematic view of an internal partial structure of a conservator transformer according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Fig. 1-2 show a first embodiment of the conservator transformer according to the present invention, in which a positive pressure seal detection device is installed.
The oil conservator transformer in this embodiment has installed oil conservator transformer malleation sealing detection device 2 on the top side of oil conservator transformer cabinet 1 inside, and it can be under the prerequisite that does not use external technology to store up the oil conservator, easily realizes detecting the interior oily formula oil conservator transformer malleation sealing performance accuracy of ripple.
The structure of the positive pressure seal detection device of the oil conservator transformer is specifically described below.
Oil conservator transformer malleation in this embodiment seals detection device 2, directly leaves the factory and installs the top side of 1 inside of oil conservator cabinet body in the ripple, and it includes: a drive motor 21; install the first transmission assembly in driving motor 21 one side, first transmission assembly includes: the transmission gear box 22 is in transmission connection with the driving motor 21, the end gear boxes 23 are respectively connected to two opposite sides of the transmission gear box 22, and the lifting screw rods 24 are connected to the end gear boxes 23, and the transmission gear box 22, the end gear boxes 23 and the lifting screw rods 24 are in transmission connection in sequence; a supporting plate 25 connected to the lifting screw rods 24 at both end sides; and a pressure sensor 26 mounted on the pallet 25.
Wherein: the driving motor 21 is started, the supporting plate 25 is linked to ascend or descend through the transmission gear box 22, the end gear box 23 and the lifting screw rod 24, so that the supporting plate is close to or far away from the top of the corrugated core body of the oil conservator at a constant speed, and the internal pressure of the oil conservator is obtained by detecting the value of the pressure sensor 26. Through the device, need not to prepare any device and can realize accurate detection through electric operation when carrying out the malleation sealing detection test, the process of the test is simple and convenient, can greatly use manpower sparingly and material resources.
In specific implementation, the transmission gear box 22 and the end gear box 23, and the driving motor 21 and the transmission gear box 22 are in transmission connection through the transmission connecting rod 27 respectively.
Further, the driving motor 21 has a first assembling surface a, the transmission gear box 22 has a second assembling surface B, and the end gear box 23 has a third assembling surface C; first assembly surface A, second assembly surface B and third assembly surface C are located the coplanar to the sealed detection device 2 of assembly batch oil tank transformer malleation is at the top side of the inside of batch oil tank transformer cabinet body 1.
In practice, the driving motor 21, the transmission gear box 22 and the end gear box 23 are respectively in block shape. Wherein the end gear boxes 23 on opposite sides of the transmission gear box 22 are arranged symmetrically.
Preferably, the positive pressure seal detection device 2 of the conservator transformer in the embodiment may further include: and the second transmission assembly is arranged on the other side of the driving motor 21, and the structure of the second transmission assembly is symmetrical to that of the first transmission assembly. For example: the second transmission assembly also includes the transmission gear box 22, the end gear box 23, the lifting screw 24 and the transmission link 27, and the assembly method is the same as the structure of the first transmission assembly.
Further, store up oil tank transformer positive pressure and seal detection device 2 and still include: and the measurement and control assembly 28 is respectively connected with the driving motor 21 and the pressure sensor 26, wherein the measurement and control assembly 28 controls the driving motor 21 to be started or stopped, and the measurement and control assembly 28 detects whether oil leakage exists at each sealing part of the transformer of the oil conservator by acquiring pressure data of the pressure sensor 26.
When the positive pressure sealing detection device of the transformer of the oil conservator in the embodiment is implemented specifically, the positive pressure sealing detection device 2 of the transformer of the oil conservator is directly assembled on the top side inside the transformer cabinet body 1 of the oil conservator when the oil conservator is out of the field. Specifically, the measurement and control assembly 28 starts the driving motor 21, so that the supporting plate 25 slowly approaches to the top of the corrugated core body of the corrugated internal oil type oil conservator at a constant speed. It will be appreciated that the above-described reverse steps, the support plate 25 can also be located away from the conservator corrugated core.
The measurement and control component 28 monitors the pressure F at the supporting plate 25 by acquiring the pressure data of the pressure sensor 26, and when F approaches the attention value, the measurement and control component 28 controls the driving motor 21 to stop to ensure that the pressure P is less than 30kPa, that is, the attention value F = PS (P =30 kPa), where F is the pressure at the supporting plate, S is the area of the supporting plate, and P is the pressure inside the conservator. The pressure intensity detection method used in the process is the same as the mode of performing the sealing test on the oil conservator transformer specified in the national power industry standard DL/T264-2012 'oil immersed power transformer (reactor) field sealing test guide rule'.
After 12h of holding, the pressure data of the pressure sensor 26 is obtained to detect whether the pressure F at the supporting plate 25 is reduced or not and whether oil leakage exists at each sealing part of the main transformer body or not. If the leakage oil exists, the detection process is repeated after the leakage point is processed; if the result data of no oil leakage is obtained through detection, the supporting plate 25 is restored to the initial position through the measurement and control assembly 28, and the positive pressure sealing detection test of the transformer of the corrugated internal oil type oil conservator is completed.
The oil conservator transformer and the positive pressure sealing detection device thereof have the following beneficial effects: the positive pressure seal detection device of the oil conservator transformer comprises: a drive motor; install the first drive assembly in driving motor one side, first drive assembly includes: the transmission gear box is in transmission connection with the driving motor, the end gear boxes are respectively connected to two opposite sides of the transmission gear box, and the lifting screw rod is connected to the end gear boxes; the supporting plate is connected to the lifting screw rods at the two end sides; and a pressure sensor mounted on the pallet, wherein: the driving motor is started, the supporting plate is linked to ascend or descend through the transmission gear box, the end gear box and the lifting screw rod so as to be close to or far away from the top of the corrugated core body of the oil conservator at a constant speed, and the internal pressure of the oil conservator is obtained through detecting the numerical value of the pressure sensor. It can directly leave the factory and install the top side in the internal portion of ripple internal oil type oil conservator, need not to prepare any device and can realize accurate detection through electric operation when carrying out the malleation seal detection test, and the structure is retrencied, and the simple operation just can use repeatedly, has saved manpower, material resources greatly.
Claims (8)
1. The utility model provides an oil conservator transformer malleation seals detection device which characterized in that includes:
a drive motor;
install the first transmission assembly of driving motor one side, first transmission assembly includes: the transmission gear box is in transmission connection with the driving motor, the end gear boxes are respectively connected to two opposite sides of the transmission gear box, and the lifting screw rod is connected to the end gear boxes;
the supporting plate is connected to the lifting screw rods at the two end sides; and
a pressure sensor mounted on the pallet, wherein: the driving motor is started, the supporting plate is linked with the lifting screw rod to ascend or descend through the transmission gear box, the end gear box and the lifting screw rod, so that the supporting plate is close to or far away from the top of a corrugated core body of the oil conservator at a constant speed, and the internal pressure of the oil conservator is obtained through detecting the numerical value of the pressure sensor.
2. The positive pressure seal detection device of a conservator transformer according to claim 1, further comprising: respectively with driving motor with the observing and controlling subassembly that pressure sensor links to each other, wherein, through observe and control the control of subassembly and start or stop driving motor, observe and control the subassembly through acquireing pressure sensor's pressure data has or not the oil leakage oil in order to detect each sealed department of oil conservator transformer.
3. The positive pressure seal detection device for a conservator transformer according to claim 1 or 2, further comprising: and the second transmission assembly is arranged on the other side of the driving motor, and the structure of the second transmission assembly and the structure of the first transmission assembly are arranged symmetrically.
4. The positive pressure seal detection device for the transformer of the conservator according to claim 3, wherein the transmission gear box and the end gear box, the driving motor and the transmission gear box are respectively connected by a transmission connecting rod in a transmission way.
5. The positive pressure seal detection device for a conservator transformer according to claim 1, wherein said drive motor has a first mounting face, said transmission gear box has a second mounting face, and said end gear box has a third mounting face; the first assembly surface, the second assembly surface and the third assembly surface are located on the same plane to assemble the positive pressure sealing detection device of the transformer of the oil conservator on the top side of the interior of the transformer cabinet body of the oil conservator.
6. The positive pressure seal detection device of an oil conservator transformer according to claim 5, wherein the driving motor, the transmission gear box and the end gear box are respectively in block shape.
7. The positive pressure seal detection device for a conservator transformer according to claim 1, wherein said end gear boxes on opposite sides of said drive gear box are symmetrically arranged.
8. An oil conservator transformer, characterized in that the top side of the interior of the conservator transformer cabinet is provided with a positive pressure sealing detection device of the oil conservator transformer as claimed in any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211171693.1A CN115524078A (en) | 2022-09-26 | 2022-09-26 | Oil conservator transformer and positive pressure sealing detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211171693.1A CN115524078A (en) | 2022-09-26 | 2022-09-26 | Oil conservator transformer and positive pressure sealing detection device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115524078A true CN115524078A (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211171693.1A Pending CN115524078A (en) | 2022-09-26 | 2022-09-26 | Oil conservator transformer and positive pressure sealing detection device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116818222A (en) * | 2023-08-30 | 2023-09-29 | 江苏伟正电气科技有限公司 | Transformer oil conservator capsule gas tightness detection device |
-
2022
- 2022-09-26 CN CN202211171693.1A patent/CN115524078A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116818222A (en) * | 2023-08-30 | 2023-09-29 | 江苏伟正电气科技有限公司 | Transformer oil conservator capsule gas tightness detection device |
| CN116818222B (en) * | 2023-08-30 | 2023-11-03 | 江苏伟正电气科技有限公司 | Transformer oil conservator capsule gas tightness detection device |
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