CN115929737A - Oil supplementing device and uninterrupted oil supplementing method for hydraulic mechanism of circuit breaker - Google Patents
Oil supplementing device and uninterrupted oil supplementing method for hydraulic mechanism of circuit breaker Download PDFInfo
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- CN115929737A CN115929737A CN202211490879.3A CN202211490879A CN115929737A CN 115929737 A CN115929737 A CN 115929737A CN 202211490879 A CN202211490879 A CN 202211490879A CN 115929737 A CN115929737 A CN 115929737A
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Abstract
The invention discloses an oil supplementing device of a hydraulic mechanism of a circuit breaker, which belongs to the technical field of circuit breakers and solves the problems of power failure, unsafe oil supplementing, inconvenient oil supplementing and easy backflow of hydraulic oil in the prior art, wherein the oil supplementing device mainly comprises an oil supplementing barrel and a low-pressure pipeline connected with an oil discharge port of an oil tank of the circuit breaker, a communicated oil conveying pipeline is arranged between the oil supplementing barrel and the low-pressure pipeline, the oil conveying pipeline is provided with an oil pump and a first control valve for controlling the opening and closing of the oil conveying pipeline, the low-pressure pipeline is provided with a second control valve for controlling the opening and closing of the low-pressure pipeline, and the second control valve is positioned at the downstream of the first control valve and at the bottom of the oil tank of the circuit breaker. The invention is mainly used for realizing charged oil supplement, so that the oil supplement is safer and more convenient, and the backflow of hydraulic oil can be effectively avoided. The invention also discloses a method for supplementing oil without power cut, which realizes oil supplementation without power cut.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an oil supplementing device of a circuit breaker hydraulic mechanism and an oil supplementing method without power failure.
Background
The circuit breaker plays the effect of control and protection in electric power system, and the circuit breaker has the risk that oil pipe seals ageing and cause the hydraulic oil seepage because long-term operation, needs the maintainer to carry out the hydraulic oil replenishment to the circuit breaker oil tank of circuit breaker. The circuit breaker oil tank generally sets up at the top of circuit breaker mechanism, generally needs maintainer high altitude construction, and the operation is more loaded down with trivial details, and the truck surpasss the height of the insulating porcelain bushing of circuit breaker easily when the maintainer mends oil, leads to the human body to be close to electrified conductor easily, has great potential safety hazard to the circuit breaker that adopts hydraulic pressure mechanism is 220kV and above voltage level usually, and the processing of having a power failure temporarily influences the electric wire netting greatly. Of course, in the prior art, oil is replenished to the oil tank of the circuit breaker through the oil pump located below the circuit breaker, but when the oil replenishing is completed and the oil pump is closed, hydraulic oil in the oil tank of the circuit breaker is easy to flow back to the oil pump under the action of gravity, so that the oil replenishing effect is affected.
Disclosure of Invention
The invention aims to provide an oil supplementing device for a hydraulic mechanism of a circuit breaker, which solves the problems of power failure, unsafe oil supplementing, inconvenient oil supplementing and easy backflow of hydraulic oil in the prior art, realizes electrified oil supplementing, ensures safer and more convenient oil supplementing and can also effectively avoid backflow of the hydraulic oil.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a circuit breaker hydraulic pressure mechanism mends oily device, includes the low-pressure line of mend oil drum and the oil drain port of connecting the circuit breaker oil tank, be equipped with the defeated oil pipe way of intercommunication between mend oil drum and the low-pressure line, defeated oil pipe way is equipped with the first control valve that oil pump and the defeated oil pipe way of control lead to and close, and the low-pressure line is equipped with the second control valve that the control low-pressure line leads to and closes, and the second control valve is located the low reaches of first control valve and locates the bottom of circuit breaker oil tank.
After the technical scheme is adopted, the invention has the following advantages: firstly, set up the low-pressure line of connecting the circuit breaker oil tank, mend the defeated oil pipeline that is equipped with the intercommunication between oil drum and the low-pressure line, mend oil from the oil drain port of circuit breaker oil tank, the oil drain port is located the bottom of circuit breaker oil tank usually, be favorable to keeping away from the electrified conductor at circuit breaker oil tank top, need not to climb and mend oil behind the higher height to maintainer, the potential safety hazard has been reduced, it is more convenient to mend oil, also can realize electrified mended oil, reduce the influence to the circuit, secondly, set up first control valve and second control valve, the second control valve is located the low reaches of first control valve and locates the bottom of circuit breaker oil tank, realize that defeated oil pipeline of control is closed and the low-pressure line is led to be closed, first control valve and second control valve also can effectively prevent the hydraulic oil backward flow, also can keep away from the electrified conductor operation second control valve at circuit breaker oil tank top, overhaul safer.
Furthermore, the outlet end of the oil pipeline is detachably connected with the inlet end of the low-pressure pipeline. After adopting above-mentioned technical scheme, defeated oil pipe's exit end can be connected with the entrance point of the low-pressure line of difference, can realize mending oil to the circuit breaker oil tank of difference, also can reduce the device quantity that the maintainer carried, and it is more convenient to use.
Furthermore, one of the outlet end of the oil pipeline and the inlet end of the low-pressure pipeline is provided with an internal thread, and the other one is provided with an external thread in threaded connection with the internal thread; or the oil pipeline device further comprises a threaded sleeve, connecting threads are arranged on the outer surface of the outlet end of the oil pipeline and the outer surface of the inlet end of the low-pressure pipeline, and the outlet end of the oil pipeline is connected with the inlet end of the low-pressure pipeline through the threaded sleeve. After the technical scheme is adopted, in one technical scheme, the outlet end of the oil pipeline and the inlet end of the low-pressure pipeline are connected through threads, and the structure is simple; in another technical scheme, the outlet end of the oil pipeline and the inlet end of the low-pressure pipeline are connected through the threaded sleeve, the whole oil pipeline or the low-pressure pipeline does not need to be rotated, and the use is more convenient.
Furthermore, a sealing ring is arranged between the outlet end of the oil pipeline and the inlet end of the low-pressure pipeline. After the technical scheme is adopted, oil leakage is effectively prevented, and pollution and waste are reduced.
Furthermore, the oil pipeline is also provided with a filter, and the filter is positioned at the upstream of the outlet end of the oil pipeline. After adopting above-mentioned technical scheme, filter the hydraulic oil that gets into the circuit breaker oil tank, effectively prevent that impurity from getting into the circuit breaker oil tank, guarantee circuit breaker's life also can prevent to carry oil pipe way and low-pressure line to block up, makes the oil supplementation more swift.
Furthermore, be equipped with the observation window on the oil supply bucket, be provided with the graduation apparatus that shows the oil mass on the observation window. After adopting above-mentioned technical scheme, it is visual with the hydraulic oil in the benefit oil drum, and the maintainer can master the volume of hydraulic oil in the benefit oil drum directly perceivedly, also can obtain the oil mass information that supplements to the circuit breaker oil tank through the graduation apparatus, need not through observing the circuit breaker oil tank, and it is more convenient, safe to use.
Furthermore, the oil pump is detachably connected with the oil conveying pipeline, and the oil pump is a manual pump; or, the oil pump is an electric pump. After the technical scheme is adopted, the structure is simple and the cost is lower through the manual pump; or the electric pump reduces the working strength of maintainers and further improves the working efficiency.
The invention also aims to provide a method for supplementing oil without power failure, which solves the problems of power failure, unsafe oil supplementation, inconvenient oil supplementation and easy backflow of hydraulic oil in the prior art, further realizes electrified oil supplementation, ensures safer and more convenient oil supplementation, and can also effectively avoid backflow of hydraulic oil.
In order to achieve the purpose, the invention adopts the following technical scheme: the invention discloses an uninterrupted oil supplementing method, which adopts an oil supplementing device of a circuit breaker hydraulic mechanism, and is characterized by comprising the following steps: s1, communicating an oil pipeline with a low-pressure oil pipeline, and opening a first control valve and a second control valve;
step S2: starting an oil pump to supplement oil;
and step S3: and observing the dial gauge, closing the second control valve after the hydraulic oil is compensated to a preset amount, closing the oil pump, and closing the first control valve.
After the technical scheme is adopted, the invention has the following advantages: realize mending oil fast to the circuit breaker oil tank, utilize the graduation apparatus to obtain the oil mass information that supplements to the circuit breaker oil tank, thereby make the hydraulic pressure oil mass of replenishment more reasonable, and, the second control valve is closed earlier to replenishment hydraulic oil after waiting to mend to predetermineeing the volume, effectively prevent the backward flow of hydraulic oil in the low pressure pipeline, it is corresponding, prevent that the hydraulic oil of circuit breaker oil tank from taking place to flow back, then close the oil pump again, make hydraulic oil flow back to in the defeated oil pipeline through gravity mend the oil drum, close first control valve at last, effectively avoid defeated oil pipeline in the hydraulic oil leakage.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
fig. 1 is a schematic diagram of an oil replenishing device of a hydraulic mechanism of a circuit breaker according to a first embodiment of the invention;
FIG. 2 is a schematic diagram of a non-stop oil replenishment method in accordance with a second embodiment of the present invention;
in the figure, 1, an oil supplementing barrel; 2. an oil filling hole; 3. an oil pump; 4. a first control valve; 5. an oil pipeline; 6. a threaded sleeve; 7. a second control valve; 8. a low pressure line; 9. a breaker oil tank; 10. a dust cover; 11. an observation window; 12. and (4) a scale table.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 the embodiments.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, for example, the sequence numbers related to the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic thereof, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, e.g., X and/or Y, may mean: x alone, X and Y simultaneously, and Y alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprises X, Y and Z" and "comprises X, Y, Z" means that X, Y, Z all comprise three, "comprises X, Y or Z" means that one of three X, Y, Z is comprised, "comprises X, Y and/or Z" means that any one or any two or three of X, Y, Z is comprised.
The technical solution of the present invention will be described in detail below with specific examples. The following specific embodiments may be optionally combined with or replaced by each other according to practical situations, and the same or similar concepts or processes may not be described in detail in some embodiments.
The first embodiment is as follows:
as shown in fig. 1, the invention provides an oil supplementing device for a hydraulic mechanism of a circuit breaker, which comprises an oil supplementing barrel 1 and a low-pressure pipeline 8 connected with an oil discharge port of a circuit breaker oil tank 9, wherein an oil delivery pipeline 5 communicated with the oil supplementing barrel 1 and the low-pressure pipeline 8 is arranged between the oil supplementing barrel 1 and the low-pressure pipeline 8, the oil delivery pipeline 5 is provided with an oil pump 3 and a first control valve 4 for controlling the opening and closing of the oil delivery pipeline 5, the low-pressure pipeline 8 is provided with a second control valve 7 for controlling the opening and closing of the low-pressure pipeline 8, and the second control valve 7 is positioned at the downstream of the first control valve 4 and is arranged at the bottom of the circuit breaker oil tank 9.
Firstly, set up the low-pressure line 8 of connecting circuit breaker oil tank 9, mend the defeated oil pipe way 5 that is equipped with the intercommunication between oil drum 1 and the low-pressure line 8, mend oil from the oil drain port of circuit breaker oil tank 9, the oil drain port is located the bottom of circuit breaker oil tank 9 usually, be favorable to keeping away from the electrified conductor at circuit breaker oil tank 9 top, need not to repair the oil after the maintainer climbs higher height, the potential safety hazard has been reduced, it is more convenient to mend oil, also can realize electrified oil of mending, reduce the influence to the circuit, secondly, set up first control valve 4 and second control valve 7, second control valve 7 is located the low reaches of first control valve 4 and locates the bottom of circuit breaker oil tank 9, it closes with low-pressure line 8 to realize that control defeated oil pipe way 5 leads to, first control valve 4 and second control valve 7 also can effectively prevent the hydraulic oil backward flow, also can keep away from the electrified conductor operation second control valve 7 at circuit breaker oil tank 9 top, overhaul safelyr.
In this embodiment, the second control valve 7 is an oil drain port of the breaker tank 9.
For further convenience of use, the outlet end of the oil delivery pipe 5 is detachably connected to the inlet end of the low pressure pipe 8. The outlet end of the oil conveying pipeline 5 can be connected with the inlet ends of different low-voltage pipelines 8, oil can be supplemented to different circuit breaker oil tanks 9, the number of devices carried by maintainers can be reduced, and the use is more convenient.
It should be noted that the inlet end of the low-pressure line 8 is the second control valve 7.
Specifically, in one embodiment, the oil pipeline comprises a threaded sleeve 6, the outer surface of the outlet end of the oil pipeline 5 and the outer surface of the inlet end of the low-pressure pipeline 8 are both provided with connecting threads, and the outlet end of the oil pipeline 5 is connected with the inlet end of the low-pressure pipeline 8 through the threaded sleeve 6. The connection of the oil pipeline 5 and the low-pressure pipeline 8 can be realized only by rotating the threaded sleeve 6, the whole oil pipeline 5 or the whole low-pressure pipeline 8 does not need to be rotated, and the use is more convenient.
In another embodiment, one of the outlet end of the oil line 5 and the inlet end of the low pressure line 8 is provided with an internal thread and the other is provided with an external thread which is threadedly connected with the internal thread. The structure is simple.
And an observation window 11 is arranged on the oil supplementing barrel 1, and a dial gauge 12 for displaying the oil quantity is arranged on the observation window 11. The hydraulic oil that will mend in the oil drum 1 is visual, and the maintainer can grasp the volume of hydraulic oil in the oil drum 1 directly perceivedly, also can obtain the oil mass information of supplementing to circuit breaker oil tank 9 through graduation apparatus 12, need not through observing circuit breaker oil tank 9, and it is more convenient, safe to use.
It will be appreciated that in other embodiments, a flow meter may be provided in the oil delivery line 5, downstream of the oil pump 3.
Still be equipped with tank filler sleeve 2 on the benefit oil drum 1 to and locate the shield 10 of tank filler sleeve 2, when mending oil, adopt shield 10 to block up tank filler sleeve 2, avoid dust, worm etc. to enter into in the benefit oil drum 1.
The dust cover 10 may be a metal cover or a rubber cover, and is not limited thereto.
For further convenience of use, in one embodiment, the oil pump 3 is detachably connected to the oil delivery pipe 5, and the oil pump 3 is a manual pump. Simple structure, lower cost and convenient carrying.
In another embodiment, the oil pump 3 is an electric pump. Through the charge pump, reduce maintainer's working strength, further improve work efficiency.
In order to prevent hydraulic oil from leaking, a sealing ring is arranged between the outlet end of the oil pipeline 5 and the inlet end of the low-pressure pipeline 8. Effectively preventing oil leakage and reducing pollution and waste.
In order to make the oil supply quicker, the oil transport pipe 5 is also provided with a filter, which is located upstream of the outlet end of the oil transport pipe 5. The hydraulic oil that gets into circuit breaker oil tank 9 filters, prevents effectively that impurity from getting into circuit breaker oil tank 9, ensures the life of circuit breaker, also can prevent that defeated oil pipe way 5 and low-pressure line 8 from blockking up, makes the oil supplementation more swift.
It can be understood that the filter can be a replaceable structure such as filter cotton, and the like, so that later maintenance is facilitated.
The second embodiment:
as shown in fig. 2, in this embodiment, an oil supplementing method without power outage is provided, where the oil supplementing device for a circuit breaker hydraulic mechanism according to the present invention includes the following steps: s1, communicating an oil pipeline 5 with a low-pressure oil pipeline, and opening a first control valve 4 and a second control valve 7;
step S2: starting the oil pump 3 to supplement oil;
and step S3: and observing the dial gauge 12, closing the second control valve 7 after the hydraulic oil is compensated to a preset amount, closing the oil pump 3, and closing the first control valve 4.
By adopting the method, the oil can be quickly supplemented to the oil tank 9 of the circuit breaker, and the oil quantity information supplemented to the oil tank 9 of the circuit breaker is obtained by utilizing the dial gauge 12, so that the supplemented hydraulic oil quantity is more reasonable, the second control valve 7 is closed after the supplemented hydraulic oil is supplemented to the preset quantity, the backflow of the hydraulic oil in the low-pressure pipeline 8 is effectively prevented, correspondingly, the backflow of the hydraulic oil in the oil tank 9 of the circuit breaker is prevented, then the oil pump 3 is closed, the hydraulic oil in the oil pipeline 5 flows back into the oil supplementing barrel 1 through gravity, and finally the first control valve 4 is closed, so that the leakage of the hydraulic oil in the oil pipeline 5 is effectively avoided.
It should be noted that the preset amount of oil supply for the 25 liter breaker oil tank 9 is 15 liters; the preset amount of oil replenishment for the 15 liter circuit breaker tank 9 is 6 liters. Of course, in other embodiments, the breaker oil tank 9 may be supplemented with an appropriate amount of hydraulic oil according to factors such as different types of hydraulic oil or different types of breakers.
Other contents not described in this embodiment may refer to embodiment one.
In addition to the preferred embodiments described above, the present invention has other embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention as claimed.
Claims (8)
1. The utility model provides a circuit breaker hydraulic pressure mechanism mends oily device, its characterized in that, low-pressure line including the oil drain port of mending the oil drum and connecting the circuit breaker oil tank, mend the defeated oil pipe way that is equipped with the intercommunication between oil drum and the low-pressure line way, defeated oil pipe way is equipped with the first control valve that oil pump and the defeated oil pipe way of control were led to, and low-pressure line is equipped with the second control valve that the low-pressure line of control leads to and closes, and the second control valve is located the low reaches of first control valve and locates the bottom of circuit breaker oil tank.
2. The oil supplementing device of the hydraulic mechanism of the circuit breaker according to claim 1, wherein the outlet end of the oil pipeline is detachably connected with the inlet end of the low-pressure pipeline.
3. The oil supplementing device of the hydraulic mechanism of the circuit breaker according to claim 2, wherein one of the outlet end of the oil pipeline and the inlet end of the low-pressure pipeline is provided with an internal thread, and the other is provided with an external thread in threaded connection with the internal thread; or the oil pipeline device further comprises a threaded sleeve, connecting threads are arranged on the outer surface of the outlet end of the oil pipeline and the outer surface of the inlet end of the low-pressure pipeline, and the outlet end of the oil pipeline is connected with the inlet end of the low-pressure pipeline through the threaded sleeve.
4. The oil supplementing device of the hydraulic mechanism of the circuit breaker according to claim 3, wherein a sealing ring is arranged between the outlet end of the oil pipeline and the inlet end of the low-pressure pipeline.
5. The circuit breaker hydraulic mechanism oil supplementing device of claim 1, wherein the oil delivery pipeline is further provided with a filter, and the filter is located upstream of the outlet end of the oil delivery pipeline.
6. The oil supplementing device of the hydraulic mechanism of the circuit breaker according to claim 1, wherein an observation window is arranged on the oil supplementing barrel, and a dial gauge for displaying oil quantity is arranged on the observation window.
7. The oil supplementing device of the hydraulic mechanism of the circuit breaker according to claim 1, wherein the oil pump is detachably connected with an oil pipeline, and the oil pump is a manual pump; alternatively, the oil pump is provided with an electric pump.
8. An oil supplementing method without power cut, which adopts the breaker hydraulic mechanism oil supplementing device according to any one of claims 1 to 7, and is characterized by comprising the following steps: s1, communicating an oil pipeline with a low-pressure oil pipeline, and opening a first control valve and a second control valve;
step S2: starting an oil pump to supplement oil;
and step S3: and observing the dial gauge, closing the second control valve after the hydraulic oil is compensated to the preset amount, closing the oil pump, and closing the first control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490879.3A CN115929737A (en) | 2022-11-25 | 2022-11-25 | Oil supplementing device and uninterrupted oil supplementing method for hydraulic mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211490879.3A CN115929737A (en) | 2022-11-25 | 2022-11-25 | Oil supplementing device and uninterrupted oil supplementing method for hydraulic mechanism of circuit breaker |
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| Publication Number | Publication Date |
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| CN115929737A true CN115929737A (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211490879.3A Pending CN115929737A (en) | 2022-11-25 | 2022-11-25 | Oil supplementing device and uninterrupted oil supplementing method for hydraulic mechanism of circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816769A (en) * | 2023-08-10 | 2023-09-29 | 青岛昌辉海洋智能装备有限公司 | Oil supplementing system of hydraulic station |
-
2022
- 2022-11-25 CN CN202211490879.3A patent/CN115929737A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816769A (en) * | 2023-08-10 | 2023-09-29 | 青岛昌辉海洋智能装备有限公司 | Oil supplementing system of hydraulic station |
| CN116816769B (en) * | 2023-08-10 | 2024-03-19 | 青岛昌辉海洋智能装备有限公司 | Oil supplementing system of hydraulic station |
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