CN210487068U - Oil-immersed transformer internal noise monitoring sensor installation equipment - Google Patents
Oil-immersed transformer internal noise monitoring sensor installation equipment Download PDFInfo
- Publication number
- CN210487068U CN210487068U CN201921796077.9U CN201921796077U CN210487068U CN 210487068 U CN210487068 U CN 210487068U CN 201921796077 U CN201921796077 U CN 201921796077U CN 210487068 U CN210487068 U CN 210487068U
- Authority
- CN
- China
- Prior art keywords
- oil
- container
- sealing
- valve
- cover plate
- Prior art date
- 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.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 229920001971 elastomer Polymers 0.000 claims description 17
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims 2
- 239000003921 oil Substances 0.000 description 44
- 238000010586 diagram Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Abstract
The utility model discloses an oil-immersed transformer internal noise monitoring sensor installation device, which comprises a valve, a container and a container cover plate, wherein one end of the valve is installed on the wall of a transformer oil tank and is communicated with the transformer oil tank; the container is communicated with the other end of the valve, and the container cover plate and the container can be connected in a sealing manner; the container cover plate is provided with a sensor cable through hole and an exhaust valve connected with an exhaust port on the container cover plate, and the sensor is installed inside the container through the sensor cable through hole. The mounting equipment can conveniently mount and dismount the acoustic sensor under the condition that the operation of the oil-immersed transformer is not influenced.
Description
Technical Field
The utility model relates to an acoustics test technical field, more specifically relates to an oil-immersed transformer internal noise monitoring sensor erection equipment.
Background
The current noise and vibration monitoring method for the internal mechanical fault of the large oil-immersed transformer is generally carried out by arranging a microphone inside or arranging a vibration sensor on the outside of an oil tank. Due to the complexity of the transformer structure, the noise obtained from the outside is greatly attenuated compared with the noise in the transformer, and the signal obtained by the vibration sensor is greatly influenced by the installation position, so that the monitoring accuracy can be directly influenced, and the influence of other equipment in the transformer is easily caused. And the microphone is arranged in the oil tank, so that the installation is difficult to select and the disassembly and assembly are troublesome due to the small vacant space in the transformer oil tank, and the sensor with a fault is difficult to replace when the transformer runs in real time.
In summary, the prior art does not provide a practical specific structure of the mounting device for the internal noise monitoring sensor of the oil-immersed transformer or a monitoring method of the corresponding device, so as to overcome the problems that the acoustic sensor of the oil-immersed transformer is difficult to assemble and disassemble and the mounting device is difficult to select.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model provides an oil-immersed transformer internal noise monitoring sensor erection equipment, this erection equipment can be under the condition that does not influence oil-immersed transformer operation, and operating personnel's safety has been guaranteed to convenient dismouting acoustic sensor to noise signal's decay has been avoided as far as possible, oil appearance collection can also be carried out, its installation that is particularly suitable for oil-immersed transformer internal noise monitoring sensor.
In order to solve the problems, the utility model provides an oil-immersed transformer internal noise monitoring sensor installation device, which comprises a valve, a container and a container cover plate, wherein one end of the valve is installed on the wall of a transformer oil tank and is communicated with the transformer oil tank; the container is communicated with the other end of the valve, and the container cover plate and the container can be connected in a sealing manner; the container cover plate is provided with a sensor cable through hole and an exhaust valve connected with an exhaust port on the container cover plate, and the sensor is installed inside the container through the sensor cable through hole.
Furthermore, the valve is a ball valve of DN50 type, and one end of the ball valve of DN50 type is connected with the transformer oil tank through a flange and a bolt.
Furthermore, the container is a composite structure formed by mutually perpendicular communication of a section of circular tube and a cup-shaped structure, the open end of the circular tube is communicated with the other end of the valve, and the cup-shaped structure can be mutually matched with a container cover plate to carry out fixed sealing.
Furthermore, the sensor cable through opening comprises sealing rubber, a core wire and a lead shell, the sealing rubber is connected with the container cover plate in a sealing mode through a mortise and tenon joint structure, and the core wire and the lead shell surrounding the core wire are inserted into the sealing rubber.
Furthermore, the wire shell is a tubular structure with mounting threads at the upper end and the lower end, one end of the tubular structure, which is positioned in the container, is used for mounting the sensor, and the other end of the tubular structure, which is positioned outside the container, is used for mounting a sensor cable.
Furthermore, the discharge valve includes sealing bolt and annular seal pad, sealing bolt can pass through annular seal pad with gas vent on the container apron carries out sealing connection.
Furthermore, the external thread of the sealing bolt is matched with the internal thread of the exhaust port on the container cover plate.
Further, the bottom of container is equipped with oil discharge outlet and fuel outlet valve, the fuel outlet valve includes sealed rubber piece and sealed lid, the oil discharge outlet is the external screw thread structure, sealed rubber piece sets up between oil discharge outlet and sealed lid, sealed lid is for having the internal screw thread dome, sealed lid can carry out threaded connection with the oil discharge outlet.
Further, the sealing rubber block is oil-resistant silicone rubber.
The utility model provides an oil-immersed transformer internal noise monitoring sensor erection equipment, this erection equipment only need select to set up an oil guide hole on transformer tank's suitable position, just can realize in the outside installation and dismantlement noise monitoring sensor on oil-immersed transformer in service, can guarantee operating personnel's safety simultaneously, and easy and simple to handle, and avoided the decay of the noise signal of the outside fluid of drawing forth through the selective use ball valve, can also carry out oil appearance collection, so this erection equipment is particularly suitable for oil-immersed transformer internal noise monitoring sensor's installation, extremely strong practicality has.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
fig. 1 is a schematic structural diagram of an installation device of an internal noise monitoring sensor of an oil-immersed transformer according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a sensor cable through hole on the container of the present invention;
FIG. 3 is a schematic structural view of a vent valve on the container of the present invention;
FIG. 4 is a schematic structural view of an oil drain valve on the container of the present invention;
FIG. 5 is a schematic structural view of the monitoring sensor mounting apparatus after the sensor is inserted into the monitoring sensor mounting apparatus of the present invention;
description of reference numerals: the sensor comprises a valve-1, a container-2, a sensor cable through hole-3, sealing rubber-3-1, a core wire-3-2, a lead shell-3, an exhaust valve-4, a sealing bolt-4-1, an annular sealing gasket-4-2, an oil drain valve-5, an oil drain hole-5-1, a sealing rubber block-5-2, a sealing cover-5-3, a container cover plate-6 and a sensor-7.
Detailed Description
The present invention will be described more fully with reference to the accompanying drawings and examples, which are provided for illustration purposes and are not intended to limit the scope of the invention.
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Fig. 1 is a schematic diagram of the structure of the oil-immersed transformer internal noise monitoring sensor installation device provided in the embodiment of the present invention, as shown in fig. 1, this installation device mainly includes: the transformer tank cover comprises a valve 1, a container 2 and a container cover plate 6, wherein one end of the valve 1 can be installed on the wall of a transformer tank through a flange and is communicated with an oil tank in the transformer; the container 2 is communicated with the other end of the valve 1 through a flange and a bolt; the container cover plate 6 is connected with the container 2 through bolts to complete sealing installation; the bottom of the container is provided with an oil discharge port 5-1 and an oil discharge valve 5, and the container cover plate 6 is provided with a sensor cable through port 3 and an exhaust valve 4 connected with an air discharge port on the container cover plate 6.
Further, when actual debugging installation uses, noise signal's decay can appear when operating personnel discovery adopts valves such as gate valve, can cause the insensitive problem of sensor monitoring noise, through many times of experiments, the utility model discloses a valve 1 has preferentially adopted the ball valve that does not influence noise transfer in the fluid basically, and selects the ball valve of DN50 type, and flange and bolt and transformer tank are passed through to the one end of the ball valve of DN50 type are together installed, and the opening on the transformer tank of being connected with the ball valve can be preferred the oil tank middle part position that is close to the winding to further improve the detectivity of noise.
Further, the container 2 is of a composite structure formed by vertically communicating a section of circular tube with a cup-shaped structure, the top of the cup-shaped structure is provided with an opening, the container cover plate 6 is of a disc shape, and the cup-shaped structure of the container 2 and the container cover plate 6 are matched with each other to be fixedly sealed; the central shaft of the circular tube is arranged in the horizontal direction, and the central shaft of the cup-shaped structure is in the vertical direction; one end of the circular tube is mounted with the other end of the valve through a flange and a bolt; the pipe diameter of the round pipe is the same as that of the pipeline at the other end of the valve 2; an oil discharge port 5-1 and an oil discharge valve 5 are arranged at the bottom of the cup-shaped structure in the container 2; the upper part of the cup-shaped structure may also be provided with a flange to which the vessel cover 6 is connected.
Further, a sensor cable through hole 3 and an exhaust valve 4 connected with an exhaust hole on the container cover plate 6 are arranged on the container cover plate 6, and the specific structures of the sensor cable through hole 3 and the exhaust valve can be seen in fig. 2-3.
Fig. 2 is a schematic structural diagram of the sensor cable through hole 3 provided in the embodiment of the present invention, mainly including: sealing rubber 3-1, core wire 3-2 and wire casing 3-3. The sealing plastic 3-1 is made of oil-resistant high-temperature vulcanized silicone rubber and can be hermetically connected with the container cover plate 6 through a mortise and tenon joint structure; the core wire 3-2 and the lead shell 3-3 are inserted into the sealing rubber 3-1 to transmit signals and ensure the tightness of the device; the core wire 3-2 can be of a standard copper needle structure; the conductor shell 3-3 is a tubular structure with mounting threads at the upper end and the lower end, the core wire 3-2 is arranged inside the conductor shell 3-3, one end of the tubular structure, which is positioned in the container, is used for mounting the sensor 7, and the other end of the tubular structure, which is positioned outside the container, is used for mounting a sensor cable, so that a noise point signal detected by the acoustic sensor is transmitted to the far end for monitoring.
Fig. 3 is a schematic structural diagram of the exhaust valve 4 provided in the embodiment of the present invention, which mainly includes: a sealing bolt 4-1 and an annular sealing gasket 4-2. The external thread of the sealing bolt 4-1 is matched with the internal thread of the air vent on the container cover plate 6, the sealing bolt and the internal thread are matched with each other by using the annular sealing gasket 4-2 for sealing connection, when oil is introduced at the beginning or the internal pressure of equipment is overlarge and the like, air can be exhausted through the air vent on the container cover plate 6, and after the air is exhausted, the sealing bolt 4-1 and the annular sealing gasket 4-2 are used for fastening and sealing.
Further, fig. 4 is the structural schematic diagram of the oil drain valve 5 provided by the embodiment of the present invention, the oil drain valve 5 is connected with the oil drain 5-1 at the bottom of the container 2 in a sealing manner, and the oil drain valve 5 includes: a sealing rubber block 5-2 and a sealing cover 5-3. An oil discharge port 5-1 at the bottom of the container 2 is of an external thread structure; the sealing rubber block 5-2 arranged between the oil discharge port 5-1 and the sealing cover 5-3 is made of transformer oil resistant material, such as oil resistant silicon rubber; the sealing cover 5-3 is a round cover with internal threads, the internal threads of the round cover are matched with the external thread structure of the oil discharge port 5-1, and oil sample collection or oil discharge can be performed through the oil discharge valve 5 when necessary (for example, the oil discharge port arranged at the bottom of the transformer or the accident oil discharge valve is blocked or fails).
Fig. 5 is the utility model discloses insert the structure schematic diagram of monitoring sensor erection equipment behind sensor 7, it connects the sensor 7 inside container 2 and outside sensor cable through-hole 3 to transmit the detected signal. Furthermore, as shown in fig. 5, in order to make the measurement of the noise more accurate, the sensor 7 may be preferentially arranged on the pipeline central axis of the ball valve 1, so that the sensor can monitor the noise in the oil tank without blocking.
The embodiment of the utility model provides an in, when installation sensor 7, earlier through closing the ball valve as valve 1, install sensor 7 through sensor cable through hole 3, install oil drain valve 5 simultaneously and make it sealed completely, install through the flange and fasten container cover 6 on container 2 afterwards, unscrew discharge valve 4, rotatory ball valve handle lets transformer oil slowly get into container 2 to certain angle (if 60) then, spill over in the gas vent on the container cover 6 until transformer oil, discharge valve 4 is in time screwed up afterwards, and rotatory ball valve to 90 and keep opening entirely. In addition, when the sensor 7 is removed or replaced, the valve 1 needs to be closed, then the container cover plate 6 needs to be disassembled, and the sensor 7 needs to be rotated away from the tubular structure of the lead shell 3-3.
Therefore, the utility model discloses an erection equipment can realize on the oil-immersed transformer in service installation and dismantle noise monitoring sensor, can guarantee operating personnel's safety simultaneously, and easy and simple to handle to the attenuation of the noise signal of the outside fluid of having avoided drawing forth through the selective use ball valve can also carry out oil appearance collection, so this erection equipment is particularly suitable for the installation of oil-immersed transformer internal noise monitoring sensor, has extremely strong practicality.
In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The installation equipment for the internal noise monitoring sensor of the oil-immersed transformer is characterized by comprising a valve, a container and a container cover plate, wherein one end of the valve is installed on the wall of an oil tank of the transformer and is communicated with the oil tank of the transformer; the container is communicated with the other end of the valve, and the container cover plate and the container can be connected in a sealing manner; the container cover plate is provided with a sensor cable through hole and an exhaust valve connected with an exhaust port on the container cover plate, and the sensor is installed inside the container through the sensor cable through hole.
2. The oil-filled transformer internal noise monitoring sensor mounting device of claim 1, wherein the valve is a ball valve of type DN50, and one end of the ball valve of type DN50 is connected to a transformer tank by a flange and a bolt.
3. The oil filled transformer internal noise monitoring sensor mounting device of claim 1, wherein the container is a composite structure formed by a section of circular tube and a cup-shaped structure which are vertically communicated with each other, the open end of the circular tube is communicated with the other end of the valve, and the cup-shaped structure can be matched with a container cover plate for fixed sealing.
4. The oil-filled transformer internal noise monitoring sensor mounting device according to claim 1, wherein the sensor cable through hole comprises a sealing rubber, a core wire and a wire casing, the sealing rubber is in sealing connection with the container cover plate through a mortise and tenon joint structure, and the core wire and the wire casing surrounding the core wire are inserted into the sealing rubber.
5. The oil-filled transformer internal noise monitoring sensor mounting device according to claim 4, wherein the wire casing is a tubular structure with mounting threads at the upper end and the lower end, one end of the tubular structure located in the container is used for mounting the sensor, and the other end of the tubular structure located outside the container is used for mounting a sensor cable.
6. Oil filled transformer internal noise monitoring sensor mounting device according to any of claims 1-5, characterized in that the venting valve comprises a sealing bolt and an annular sealing gasket, the sealing bolt being capable of sealing connection with a venting opening in the vessel cover plate via the annular sealing gasket.
7. The oil filled transformer internal noise monitoring sensor mounting apparatus of claim 6, wherein the external threads of the sealing bolt match the internal threads of the vent port on the vessel cover plate.
8. The oil-immersed transformer internal noise monitoring sensor mounting device according to any one of claims 1 to 5, wherein an oil drain port and an oil drain valve are arranged at the bottom of the container, the oil drain valve comprises a sealing rubber block and a sealing cover, the oil drain port is of an external thread structure, the sealing rubber block is arranged between the oil drain port and the sealing cover, the sealing cover is a round cover with an internal thread, and the sealing cover can be in threaded connection with the oil drain port.
9. The oil filled transformer internal noise monitoring sensor mounting device of claim 8, wherein the sealing rubber block is oil resistant silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796077.9U CN210487068U (en) | 2019-10-24 | 2019-10-24 | Oil-immersed transformer internal noise monitoring sensor installation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796077.9U CN210487068U (en) | 2019-10-24 | 2019-10-24 | Oil-immersed transformer internal noise monitoring sensor installation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210487068U true CN210487068U (en) | 2020-05-08 |
Family
ID=70510224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921796077.9U Active CN210487068U (en) | 2019-10-24 | 2019-10-24 | Oil-immersed transformer internal noise monitoring sensor installation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210487068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595597A (en) * | 2019-10-24 | 2019-12-20 | 国网湖南省电力有限公司 | Installation equipment for internal noise monitoring sensor of oil-immersed transformer and correction method thereof |
| CN111650254A (en) * | 2020-05-22 | 2020-09-11 | 北京海智元科技有限公司 | Fuel water on-line monitoring device |
-
2019
- 2019-10-24 CN CN201921796077.9U patent/CN210487068U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595597A (en) * | 2019-10-24 | 2019-12-20 | 国网湖南省电力有限公司 | Installation equipment for internal noise monitoring sensor of oil-immersed transformer and correction method thereof |
| CN110595597B (en) * | 2019-10-24 | 2024-03-12 | 国网湖南省电力有限公司 | Installation equipment of noise monitoring sensor in oil immersed transformer and correction method thereof |
| CN111650254A (en) * | 2020-05-22 | 2020-09-11 | 北京海智元科技有限公司 | Fuel water on-line monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210487068U (en) | Oil-immersed transformer internal noise monitoring sensor installation equipment | |
| CN108612890B (en) | Safety monitoring system of household gas pipeline | |
| CN107532934B (en) | Valve comprising a flow meter for measuring the flow of a fluid inside the valve | |
| CN110595597B (en) | Installation equipment of noise monitoring sensor in oil immersed transformer and correction method thereof | |
| CN104752025A (en) | Oil conservator with multiple monitor modes | |
| RU2570304C1 (en) | Device for accumulation, display and removal of air to be used in nuclear industry | |
| AU2018403485A1 (en) | Subsea housing assembly | |
| CN210035087U (en) | Pipeline pressure measuring device | |
| CN209131779U (en) | Device with flame-proof type magnetostrictive liquid level sensor | |
| CN209181870U (en) | Liquid level emasuring device | |
| CN201867400U (en) | Quick detecting device for moisture in SF6 (sulfur hexafluoride) gas in combined electrical appliance | |
| CN208348603U (en) | A kind of safety monitoring system of family's fuel gas pipeline | |
| CN209910899U (en) | Liquid immersion type leakage monitoring device for power equipment | |
| CN210516386U (en) | Thermometer capillary tube mounting structure for SF6 gas insulation transformer | |
| CN104795204B (en) | Built-in nitrogen injection device of oil-immersed transformer | |
| CN209215419U (en) | A kind of Transformer Bushing Tap measuring device and its fixed structure | |
| CN202708239U (en) | Disconnecting valve | |
| CN217687320U (en) | Multifunctional monitoring device for oil-immersed transformer | |
| CN219222099U (en) | Pressure real-time monitoring device convenient to dismouting | |
| CN216559134U (en) | Novel plug-in ultrasonic flowmeter | |
| CN205353309U (en) | A integrated form monitoring devices for high tension switchgear | |
| CN214130735U (en) | High-efficient respirator of two normal position pipelines | |
| CN210571141U (en) | High-temperature-resistant corrosion-resistant double-flange differential pressure transmitter | |
| CN220104495U (en) | Detachable dynamic pressure sensor | |
| CN117366324B (en) | Leakage monitoring device for pneumatic drain valve of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |