CN208171668U - On-load tap-changer of transformer takes oil valve - Google Patents
On-load tap-changer of transformer takes oil valve Download PDFInfo
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- CN208171668U CN208171668U CN201820803681.9U CN201820803681U CN208171668U CN 208171668 U CN208171668 U CN 208171668U CN 201820803681 U CN201820803681 U CN 201820803681U CN 208171668 U CN208171668 U CN 208171668U
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- oil
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- sealing plate
- hydraulic fluid
- fluid port
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Abstract
The utility model relates to transformer protection technology fields, take oil valve more particularly, to a kind of on-load tap-changer of transformer.Including drawing oil pipe, oil pipe pedestal, bottom sealing plate, protection cap and taking oil nozzle; the oil pipe pedestal, which is fixed on, draws on oil pipe; the bottom sealing plate is fixed on oil pipe pedestal by connector; through-hole is equipped in the middle part of the sealing plate of bottom; the other side that sealing plate is connect with nozzle in bottom takes hydraulic fluid port equipped with protrusion; through-hole, draw oil pipe and take between hydraulic fluid port be interconnected, described takes oil nozzle or protection cap to connect with hydraulic fluid port is taken.The utility model can effectively improve the working efficiency for taking oil, prevent oil from splashing, impurity is avoided to enter oil duct.
Description
Technical field
The utility model relates to transformer protection technology fields, more particularly, to a kind of on-load tap-changer of transformer
Take oil valve.
Background technique
At present insulating oil be load switch of transformer commonly insulate, arc extinguishing and cooling medium, directly affect load and open
Can pass operate normally.It is whether qualified to understand insulating oil physics, chemical property parameter in time, according to《DL/T 596-2005
Power equipment preventive trial regulation》, need to carry out breakdown voltage test no more than 3 years in loaded switch operation.Part power grid
Enterprise will also carry out slug test, such as《South electric network Co., Ltd electric power apparatus examination testing regulations（2017）》Regulation,
Insulating oil voltage resistant test and micro-water content test period are 3 years primary when loaded switch operates normally.
Most load switch of transformer takes oil valve to draw oil pipe by loaded switch conservator and is mounted on transformer-cabinet
Middle and lower part position, be it is dust-proof, moisture-proof and prevent from valve to be not closed completely leakage of oil occurs, generally taking oil valve bottom installation envelope
Plate is sealed.
It when each loaded switch draws oil sample, needs to unclamp the fixing bolt of bottom sealing plate, removes bottom sealing plate, just can be carried out
Measurement, one side working efficiency are low；After another aspect valve is opened, since oil stream nozzle is larger and is unable to control oil stream side
To a part of oil stream flows down when going out along bottom plate, is easy to take away the iron rust of bottom plate and impurity, is difficult to cleaning bottom plate in advance
This situation is avoided completely, and these iron rust and impurity can seriously affect pressure test as a result, even resulting in false judgment.Equally,
It to avoid bringing air moisture into since slug test extracts oil sample, need to extract using syringe, this structure, which is difficult to, takes oil
Sample process completely cuts off air.
Some transformers have installed one additional under sealing plate and have taken oil valve structure is identical to take the small valve of oil, but this valve with ontology
Structure is relative complex, and internal decorative pearl on top of an official cap gap is small, is easy to be blocked by the free carbon in loaded switch oil, and do not meet loaded switch and take
It is used in oil valve, and price is higher.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of transformer on-load voltage regulating
Switch takes oil valve, can effectively improve the working efficiency for taking oil, prevent oil from splashing, impurity is avoided to enter oil duct.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of on-load tap-changer of transformer
Oil valve is taken, including draws oil pipe, oil pipe pedestal, bottom sealing plate, protection cap and takes oil nozzle, the oil pipe pedestal, which is fixed on, to be drawn
On flowline, the bottom sealing plate is fixed on oil pipe pedestal by the first connector, and through-hole is equipped in the middle part of the sealing plate of bottom,
The other side that sealing plate is connect with nozzle in bottom is equipped with the hydraulic fluid port that takes of protrusion, and through-hole is drawn oil pipe and taken between hydraulic fluid port mutually
Connection, described takes oil nozzle or protection cap to connect with hydraulic fluid port is taken.Oil valve bottom sealing plate is taken by drilling through, installs the small straight tube of external screw thread additional
As hydraulic fluid port is taken, formation completely takes oily channel, takes speed oil fast when taking pressure-resistant oil sample with oil bottle, can effectively prevent oil and splash,
It avoids iron rust and impurity from entering oil duct, and oil sample can be taken in the case where not removing bottom sealing plate；Install protection outer cover additional simultaneously
As dust-proof, moisture-proof and prevent attachment from corroding；Micro- water oil sample Special oil nozzle is taken in addition, having made, for connecting additional hose
With syringe, oil is conveniently taken, and the Special oil nozzle has many advantages, such as that structure is simple, at low cost, easy cleaning.
Further, oil port is taken to be connected with globe valve in bottom sealing plate, the other end of globe valve is connected with the second company
Fitting, the structure of the second connector are identical as the structure of hydraulic fluid port is taken.It is remained to after preventing former globe valve from damaging by installing globe valve additional
Carry out the control of oil stream.
Further, the outer diameter value for taking hydraulic fluid port is less than the inner diameter values for taking oil bottle bottleneck.Hydraulic fluid port diameter value is taken to want small
In the inner diameter values for the bottleneck for taking oil bottle, oil bottle bottleneck will be taken to be directly sleeved on when oil take on hydraulic fluid port to be taken with oil bottle, with effectively anti-
Only oil splashes out, and due to taking hydraulic fluid port caliber much bigger compared with oil valve is generally taken, the oil bottle speed that draws oil sample is fast, is not easy to plug.
Further, described that hydraulic fluid port is taken to be equipped with external thread structure, the protection cap and oil nozzle is taken to be equipped with interior spiral shell
Line structure, external thread structure and internal thread structure cooperate.
Further, the connector is bolt, multiple first bolts hole is equipped on the sealing plate of bottom, in oil pipe pedestal
It is equipped with and is arranged in the first bolt hole and the second bolt hole with one-to-one second bolt hole of the first bolt hole, the bolt
In.Bottom sealing plate is bolted, it is easy to connect, and without being dismounted to existing device, bracket installs additional, installation
It is convenient.
Preferably, the through-hole is connect with tubing seal is drawn.
Preferably, described that hydraulic fluid port and bottom sealing plate is taken to be integrally formed, it takes and is tightly connected between hydraulic fluid port and through-hole.?
Oil stream can be controlled in the case where not removing bottom sealing plate by former globe valve control handle to carry out taking oil, and due to taking oil logical
Road each section is completely embedded, and iron rust and impurity is effectively avoided to enter oil duct.
Preferably, the inner diameter values of the mouthpiece for taking oil nozzle are 2mm ~ 6mm.More preferably, the mouth of oil nozzle is taken
The inner diameter values of mouth are 1.5mm.Take micro- water oil sample special-purpose taking oil nozzle be mainly a centre drill through small diameter tube protrusion take oil nozzle,
Bottom rotates connection bottom sealing plate by internal screw thread, is taken to connect additional hose when water oil sample micro- with conjunction with syringe
Oil.It is universal component due to taking micro- water oil sample smallmouth, requirement is small, can significantly reduce costs；And caliber is small to be easy to block up
The component of plug separates, easy cleaning.
Compared with prior art, beneficial effect is：A kind of on-load tap-changer of transformer provided by the utility model takes oil
Valve takes oil valve bottom sealing plate by drilling through, and installs the small straight tube of external screw thread additional and is used as and takes hydraulic fluid port, and formation completely takes oily channel, with
Oil bottle takes speed oil fast when taking pressure-resistant oil sample, can effectively prevent oil and splashes, and avoids iron rust and impurity from entering oil duct, and can not remove
It draws oil sample in the case where the sealing plate of bottom；Protection outer cover is installed additional simultaneously to be used as dust-proof, moisture-proof and prevent attachment from corroding；In addition, system
Make to take micro- water oil sample Special oil nozzle, for connecting additional hose and syringe, has conveniently taken oil, and the Special oil nozzle has structure letter
The advantages that single, at low cost, easy cleaning.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Specific embodiment
Attached drawing only for illustration, should not be understood as limiting the present invention；In order to more preferably illustrate this implementation
Example, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；For those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.Positional relationship is described in attached drawing to be only used for
Exemplary illustration should not be understood as limiting the present invention.
Embodiment：
As shown in Fig. 1, a kind of on-load tap-changer of transformer takes oil valve, including draws oil pipe 1, oil pipe pedestal 2, bottom
Sealing plate 3, protection cap 4 and oil nozzle 5 is taken, oil pipe pedestal 2, which is fixed on, draws on oil pipe 1, and bottom sealing plate 3 is consolidated by the first connector
Due on oil pipe pedestal 2, being equipped with through-hole 6 in the middle part of bottom sealing plate 3, the other side that sealing plate 3 is connect with nozzle in bottom is equipped with convex
That rises takes hydraulic fluid port 7, and through-hole 6 is drawn oil pipe 1 and taken and is interconnected between hydraulic fluid port 7, takes oil nozzle 5 or protection cap 4 and takes hydraulic fluid port 7
Connection.Oil valve bottom sealing plate 3 is taken by drilling through, installs the small straight tube of external screw thread additional as hydraulic fluid port 7 is taken, formation completely takes oily channel,
It takes speed oil fast when taking pressure-resistant oil sample with oil bottle, can effectively prevent oil and splash, avoid iron rust and impurity from entering oil duct, and can be not
Oil sample is taken in the case where removing bottom sealing plate 3；Protection outer cover is installed additional simultaneously to be used as dust-proof, moisture-proof and prevent attachment from corroding；
Micro- water oil sample Special oil nozzle is taken in addition, having made, for connecting additional hose and syringe, conveniently takes oil, and the Special oil nozzle has
Have the advantages that structure is simple, at low cost, easy cleaning.
Specifically, taking oil port to be connected with globe valve 8 in bottom sealing plate 3, the other end of globe valve 8 is connected with the second company
Fitting 11, the structure of the second connector 11 are identical as the structure of hydraulic fluid port 7 is taken.It remains to pass through installation after preventing former globe valve 8 from damaging
The control of the progress oil stream of globe valve 8.
In addition, the outer diameter value of hydraulic fluid port 7 is taken to be less than the inner diameter values for taking oil bottle bottleneck.It takes 7 diameter value of hydraulic fluid port to be less than and takes oil bottle
Bottleneck inner diameter values, oil bottle bottleneck will be taken to be directly sleeved on when oil take on hydraulic fluid port 7 to be taken with oil bottle, to effectively prevent oil to splash
Out, and due to taking 7 caliber of hydraulic fluid port much bigger compared with oil valve is generally taken, the oil bottle speed that draws oil sample is fast, is not easy to plug.Wherein, hydraulic fluid port 7 is taken
It is equipped with external thread structure, external thread structure is mutual with internal thread structure equipped with internal thread structure with oil nozzle 5 is taken for protection cap 4
Cooperation.
Wherein, connector is bolt 9, and multiple first bolts hole 10 are equipped on bottom sealing plate 3, are set on oil pipe pedestal 2
Have and is arranged in the first bolt hole 10 and the second bolt hole with one-to-one second bolt hole of the first bolt hole 10, bolt 9.It is logical
It crosses bolt 9 and connects bottom sealing plate 3, it is easy to connect, and without being dismounted to existing device, bracket installs additional, installation side
Just.
In addition, through-hole 6 and extraction oil pipe 1 are tightly connected；It takes hydraulic fluid port 7 and bottom sealing plate 3 to be integrally formed, take hydraulic fluid port 7 and leads to
It is tightly connected between hole 6.In the case where not removing bottom sealing plate 3 can by former 8 control handle of globe valve control oil stream into
Row takes oil, and due to taking oily channel each section to be completely embedded, iron rust and impurity is effectively avoided to enter oil duct.Take the mouth of oil nozzle 5
The inner diameter values of mouth are 2mm ~ 6mm.1.5mm is taken in the present embodiment；Taking micro- water oil sample special-purpose taking oil nozzle 5 is mainly an intermediate brill
Logical small diameter tube protrusion takes oil nozzle 5, and bottom rotates connection bottom sealing plate 3 by internal screw thread, when to water oil sample micro- with conjunction
It connects additional hose and syringe carries out taking oil.It is universal component due to taking micro- water oil sample smallmouth, requirement is small, can effectively reduce
Cost；And caliber is small to be easy to separate the component of blocking, easy cleaning.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (8)
1. a kind of on-load tap-changer of transformer takes oil valve, which is characterized in that including drawing oil pipe（1）, oil pipe pedestal（2）, bottom
Portion's sealing plate（3）, protection cap（4）And take oil nozzle（5）, the oil pipe pedestal（2）It is fixed on extraction oil pipe（1）On, it is described
Bottom sealing plate（3）Oil pipe pedestal is fixed on by the first connector（2）On, in bottom sealing plate（3）Middle part is equipped with through-hole（6）,
Bottom sealing plate（3）The other side connecting with nozzle takes hydraulic fluid port equipped with protrusion（7）, through-hole（6）, draw oil pipe（1）And take oil
Mouthful（7）Between be interconnected, described takes oil nozzle（5）Or protection cap（4）With take hydraulic fluid port（7）Connection.
2. on-load tap-changer of transformer according to claim 1 takes oil valve, which is characterized in that in bottom sealing plate（3）'s
Oil port is taken to be connected with globe valve（8）, globe valve（8）The other end be connected with the second connector（11）, the second connector（11）
Structure and take hydraulic fluid port（7）Structure it is identical.
3. on-load tap-changer of transformer according to claim 1 takes oil valve, which is characterized in that described takes hydraulic fluid port（7）
Outer diameter value be less than and take the inner diameter values of oil bottle bottleneck.
4. on-load tap-changer of transformer according to claim 3 takes oil valve, which is characterized in that described takes hydraulic fluid port（7）
It is equipped with external thread structure, the protection cap（4）With take oil nozzle（5）It is equipped with internal thread structure, external thread structure and interior spiral shell
Line structure cooperates.
5. on-load tap-changer of transformer according to claim 1 takes oil valve, which is characterized in that first connector
For bolt（9）, in bottom sealing plate（3）It is equipped with multiple first bolts hole（10）, in oil pipe pedestal（2）It is equipped with and the first bolt
Hole（10）One-to-one second bolt hole, the bolt（9）It is arranged in the first bolt hole（10）In the second bolt hole.
6. on-load tap-changer of transformer according to any one of claims 1 to 5 takes oil valve, which is characterized in that described
Through-hole（6）With extraction oil pipe（1）It is tightly connected.
7. on-load tap-changer of transformer according to claim 6 takes oil valve, which is characterized in that described takes hydraulic fluid port（7）
With bottom sealing plate（3）It is integrally formed, takes hydraulic fluid port（7）With through-hole（6）Between be tightly connected.
8. on-load tap-changer of transformer according to claim 7 takes oil valve, which is characterized in that described takes oil nozzle（5）
Mouthpiece inner diameter values be 1mm ~ 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820803681.9U CN208171668U (en) | 2018-05-28 | 2018-05-28 | On-load tap-changer of transformer takes oil valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820803681.9U CN208171668U (en) | 2018-05-28 | 2018-05-28 | On-load tap-changer of transformer takes oil valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208171668U true CN208171668U (en) | 2018-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820803681.9U Active CN208171668U (en) | 2018-05-28 | 2018-05-28 | On-load tap-changer of transformer takes oil valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN208171668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530672A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | General oil sealed sampling device |
-
2018
- 2018-05-28 CN CN201820803681.9U patent/CN208171668U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530672A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | General oil sealed sampling device |
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