CN216412940U - Uninterrupted liquid oil injection device for high-voltage circuit breaker - Google Patents
Uninterrupted liquid oil injection device for high-voltage circuit breaker Download PDFInfo
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- CN216412940U CN216412940U CN202122211633.5U CN202122211633U CN216412940U CN 216412940 U CN216412940 U CN 216412940U CN 202122211633 U CN202122211633 U CN 202122211633U CN 216412940 U CN216412940 U CN 216412940U
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- 238000002347 injection Methods 0.000 title claims abstract description 61
- 239000007924 injection Substances 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 238000003860 storage Methods 0.000 claims abstract description 74
- 238000001514 detection method Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 158
- 239000010720 hydraulic oil Substances 0.000 abstract description 21
- 230000007246 mechanism Effects 0.000 abstract description 10
- 230000001502 supplementing effect Effects 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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Abstract
The utility model discloses a non-power-off liquid oil injection device of a high-voltage circuit breaker, which comprises a rack, and an oil storage tank, an oil injection pump, an oil storage electromagnetic valve, an oil injection electromagnetic valve, an oil return electromagnetic valve, an electric controller and a power supply which are fixed on the rack, wherein the oil storage electromagnetic valve and the oil return electromagnetic valve are connected with the oil storage tank through pipelines, the oil injection electromagnetic valve is connected with the oil storage tank through the oil injection pump, the oil injection electromagnetic valve and the oil return electromagnetic valve are also connected with a liquid oil discharge port of the high-voltage circuit breaker through a three-way pipe, the power supply is used for supplying power to all electrical equipment, and the electric controller is used for controlling all the electrical equipment to run. The hydraulic oil supplementing device can perform live operation and can supplement hydraulic oil in the live working state of the hydraulic operating mechanism of the circuit breaker.
Description
Technical Field
The utility model relates to a non-power-off liquid oil injection device of a high-voltage circuit breaker.
Background
In recent times, with economic development and technological progress, the human living standard of matter has been continuously improved. While the industrial production and the living standard are rapidly developing, the world energy consumption is increasing year by year, and the demands of enterprises and residential users for high-quality and high-reliability power supply are increasing day by day. Therefore, the number of high-voltage and extra-high voltage substations of voltage class 220kV and above is also increasing year by year.
The hydraulic operating mechanism circuit breaker, namely a switching device which adopts the hydraulic operating mechanism to realize various operations such as switching on and switching off, has the advantages of high power, quick action, small impact, stable operation and the like, and can be widely applied to high-voltage circuit breakers of 220 kilovolt or more at present. At the same time, as the operating years of the plant increase, some of the problematic drawbacks of the hydraulic machine circuit breakers begin to emerge. Wherein, the hydraulic oil seepage is one of the most common problem of hydraulic pressure mechanism circuit breaker, if it is too much after the hydraulic oil seepage to cause the unable normal oil pressure value that maintains of circuit breaker oil pressure, will cause the circuit breaker deciliter action shutting to cause the power failure scope to enlarge even, but the oiling mode of using at present needs the maintainer to climb and open high-pressure circuit breaker oil tank top cap and carry out the oiling on the high-pressure circuit breaker, because this operation time is nearer apart from the high-pressure cable, in order to guarantee oiling safety, need change the circuit breaker into to overhaul the power failure state and just can carry out oil drain and oiling, personnel's quantity, activity duration and weather condition all have higher requirement. Therefore, the hydraulic oil of the circuit breaker of the hydraulic mechanism can be charged, the fault processing time can be shortened, a large amount of manpower and material resources can be saved, and the method has great application and research values.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a non-power-off liquid oil injection device of a high-voltage circuit breaker, which can effectively solve the problem that the existing high-voltage circuit breaker can be used for oil drainage and oil injection only when power is off.
In order to solve the technical problems, the utility model is realized by the following technical scheme: the utility model provides a high voltage circuit breaker does not have a power failure liquid oil injection device, includes the frame and fixes oil storage tank, oiling pump, oil storage solenoid valve, oiling solenoid valve, oil return solenoid valve, electropneumatic controller, the power in the frame, oil storage solenoid valve and oil return solenoid valve all link to each other through pipeline and oil storage tank, the oiling solenoid valve passes through the oiling pump and links to each other with the oil storage tank, oiling solenoid valve and oil return solenoid valve still link to each other through the hose three-way pipe, the three-way pipe still meets with high voltage circuit breaker's liquid oil discharge outlet, the power is used for supplying power for all electrical equipment, electropneumatic controller is used for controlling all electrical equipment operation.
In above-mentioned high voltage circuit breaker does not have a power failure liquid oil injection device, the oil storage tank is located the rear side of frame bottom, oil storage solenoid valve, oiling solenoid valve and oil return solenoid valve are located the front end of frame bottom, and the oil storage tank is located frame bottom rear side and is favorable to stablizing the focus of whole device, and the constructor operation of can being convenient for with oil storage solenoid valve, oiling solenoid valve and oil return solenoid valve setting simultaneously in the front end of frame bottom.
In the uninterrupted liquid oil injection device for the high-voltage circuit breaker, the touch display screen is arranged on the upper portion of the front end of the rack and connected with the electric controller and the power supply, the state of the current device can be displayed through the touch display screen, and electrical elements can be directly controlled.
In the uninterrupted liquid oil injection device for the high-voltage circuit breaker, the pressure and flow sensors are further arranged at the outlet of the oil injection pump, and the pressure and flow during oil injection are monitored, so that whether the oil injection is full is judged.
In the uninterrupted liquid oil injection device for the high-voltage circuit breaker, the electric controller and the power supply are fixed above the oil storage tank, and the electric controller and the power supply are fixed above the oil storage tank to be positioned at safer positions as possible, so that the uninterrupted liquid oil injection device is prevented from being polluted by oil stains.
In the uninterrupted liquid oil injection device for the high-voltage circuit breaker, the vacuum pump is further fixed on the rack and is connected with the oil storage tank through the vacuum solenoid valve, the oil storage tank is vacuumized through the vacuum pump, and the phenomenon that the action characteristic of the circuit breaker is deteriorated due to the fact that gas exists in hydraulic oil is avoided.
In the uninterrupted liquid oil injection device for the high-voltage circuit breaker, the heater is arranged on the outer side wall of the oil storage tank, and when the oil temperature does not meet the injection condition, the hydraulic oil in the oil storage tank is heated.
In the uninterrupted liquid oil injection device for the high-voltage circuit breaker, the oil level detection sensor and the vacuum sensor are arranged in the oil storage tank, the oil storage amount and the vacuum degree in the oil storage tank are measured at any time, sufficient hydraulic oil injection is guaranteed, and meanwhile, air mixing is avoided.
Compared with the prior art, the utility model has the advantages that: through setting up oiling solenoid valve and oiling pump, direct hydraulic oil in the oil storage tank pours into from high-voltage circuit breaker's liquid oil discharge opening, the problem of having a power failure for high-voltage circuit breaker liquid oil injection at present has been solved, because the liquid oil discharge opening of high-voltage circuit breaker generally lower position on high-voltage circuit breaker, insert from this position and need not to climb the eminence to the oiling in the high-voltage circuit breaker, high-voltage cable distance from the top is far away, consequently, hot-line work can carry out, can realize supplementing hydraulic oil under the electrified operating condition of circuit breaker hydraulic pressure operating device, and this device has integrateed the function of oil storage and oiling, realize electrified operation, the hydraulic pressure mechanism circuit breaker of the different producer models of adaptation.
Drawings
Fig. 1 is a top view of a non-stop liquid oil injection device of a high-voltage circuit breaker according to the present invention;
fig. 2 is a front view of fig. 1.
The reference signs are:
the oil level detection device comprises a frame 1, an oil storage tank 2, an oil injection pump 3, an oil storage solenoid valve 4, an oil injection solenoid valve 5, an oil return solenoid valve 6, an electric controller 7, a power supply 8, a touch display screen 9, a vacuum pump 10, a heater 11, an oil level detection sensor 12 and a vacuum sensor 13.
Detailed Description
The utility model provides a high voltage circuit breaker does not have a power failure liquid oil injection device, includes the frame and fixes oil storage tank, oiling pump, oil storage solenoid valve, oiling solenoid valve, oil return solenoid valve, electropneumatic controller, the power in the frame, oil storage solenoid valve and oil return solenoid valve all link to each other through pipeline and oil storage tank, the oiling solenoid valve passes through the oiling pump and links to each other with the oil storage tank, oiling solenoid valve and oil return solenoid valve still link to each other through the hose three-way pipe, the three-way pipe still meets with high voltage circuit breaker's liquid oil discharge outlet, the power is used for supplying power for all electrical equipment, electropneumatic controller is used for controlling all electrical equipment operation. Through setting up oiling solenoid valve and oiling pump, direct hydraulic oil in the oil storage tank pours into from high-voltage circuit breaker's liquid oil discharge opening, the problem of having a power failure for high-voltage circuit breaker liquid oil injection at present has been solved, because the liquid oil discharge opening of high-voltage circuit breaker generally lower position on high-voltage circuit breaker, insert from this position and need not to climb the eminence to the oiling in the high-voltage circuit breaker, high-voltage cable distance from the top is far away, consequently, hot-line work can carry out, can realize supplementing hydraulic oil under the electrified operating condition of circuit breaker hydraulic pressure operating device, and this device has integrateed the function of oil storage and oiling, realize electrified operation, the hydraulic pressure mechanism circuit breaker of the different producer models of adaptation.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, an embodiment of a non-power-off liquid oil injection device of a high-voltage circuit breaker according to the utility model is shown, the non-power-off liquid oil injection device of the high-voltage circuit breaker comprises a frame 1, a flat plate is arranged at the bottom of the frame 1, an oil storage tank 2 is fixed on the flat plate at the bottom of the frame 1 and is positioned at the rear side of the frame 1, a vacuum pump 10 and an oil injection pump 3 are fixed at the middle of the frame 1, an oil storage solenoid valve 4, an oil injection solenoid valve 5 and an oil return solenoid valve 6 are fixed at the bottom of the front end of the frame 1 side by side, the oil injection solenoid valve 5 is connected with the oil injection pump 3 through a pipeline, the oil injection pump 3 is connected with the oil storage tank 2 through a pipeline, the oil injection solenoid valve 5 and the oil return solenoid valve 6 are further connected with a hose tee pipe, the tee pipe is further connected with a liquid oil discharge port of the high-voltage circuit breaker, the vacuum pump 10 is also connected with the oil storage tank 2 through a pipeline to pump the air in the oil storage tank 2 to keep the oil in a non-deterioration state, an electric controller 7 and a power supply 8 are also fixed on the frame 1 above the oil storage tank 2, all electric elements in the device are controlled by the electric controller 7, and the power supply 8 supplies power to all the electric elements.
The upper part of the front end of the machine frame 1 is also provided with a touch display screen 9, the touch display screen 9 is connected with the electric controller 7 and the power supply 8, oil filling parameters can be set and the whole device can be operated through the touch display screen 9, and the touch display screen 9 can also display the current state of the whole device, such as parameters of pressure, temperature, oil filling speed and the like in the oil storage tank 2.
In order to comprehensively know the parameters in the oil storage tank 2, an oil level detection sensor 12 and a vacuum sensor 13 are further arranged in the oil storage tank 2 and used for measuring the amount of hydraulic oil in the oil storage tank 2, the operator is reminded of timely supplementing when the oil amount is insufficient, the operator is reminded of stopping oil storage when the oil amount is supplemented excessively, the vacuum sensor 13 can measure the vacuum degree in the whole oil storage tank 2, the pressure in the vacuum pipe is guaranteed, and the deterioration of the contact between the hydraulic oil and the air is reduced. The heater 11 can be additionally arranged on the side wall of the oil storage tank 2, when the temperature of hydraulic oil in the oil storage tank 2 is too low, the hydraulic oil in the oil storage tank 2 is heated through the heater 11, and the condition that the hydraulic oil added into the high-voltage circuit breaker meets the injection temperature condition is ensured.
And be equipped with pressure and flow sensor in the exit of oiling pump 3 for the parameter when the perception is to high-voltage circuit breaker oiling, through pressure and flow sensor, pressure and flow during the perception oiling, more accurate carry out the oiling for high-voltage circuit breaker.
The high-voltage circuit breaker liquid oil injection method comprises the following steps:
s1, performing self-check after the power supply 8 is started, detecting the vacuum degree in the oil storage tank 2 and the oil storage amount in the oil storage tank 2, and stopping the vacuum pump 10 when the vacuum degree in the oil storage tank 2 is lower than a set value and is-0.8 bar; when the vacuum degree in the oil storage tank 2 is higher than a set value of-0.5 bar, the vacuum pump 10 is automatically started; when the oil level in the oil storage tank 2 is lower than the set value and the total reserve is 10 percent, the oil storage is automatically started; when the oil level in the oil storage tank 2 is higher than the set value and the total reserve is 90%, the oil storage is automatically stopped;
s2, detecting whether the oil temperature in the oil storage tank 2 is higher than a set value, if so, entering the next step, and if not, starting the heater 11 to heat the oil temperature until reaching the set value;
s3, communicating the oil injection solenoid valve 5 with the oil return solenoid valve 6 through a pipeline, and discharging air in the oil injection loop through the vacuum pump 10;
s4, connecting the oil injection solenoid valve 5 and the oil return solenoid valve 6 with a three-way pipe, and connecting the three-way pipe with a liquid oil discharge port of the high-voltage circuit breaker to start oil injection;
s5, if frequent pressing or overtime pressing exists, exhausting gas in the high-voltage circuit breaker by adopting an external circulation mode, otherwise, directly injecting oil; detecting whether the oil pressure is normal or not in the oil injection process, and automatically stopping the machine if the oil pressure exceeds a set value; when the oil amount in the oil storage tank 2 is insufficient, stopping oiling and restarting oil storage;
and S6, after the oil injection is finished, emptying and recovering the residual hydraulic oil in the oil storage tank 2 and the pipeline.
After adopting above-mentioned high voltage circuit breaker uninterrupted liquid oil injection device, compare in prior art:
1. the hydraulic oil can be supplemented in the live working state of the circuit breaker hydraulic operating mechanism;
2. air mixed in the hydraulic oil is automatically separated out in a mode of combining a sensor and the vacuum pump 10 and then injected into the hydraulic mechanism circuit breaker, compared with the traditional oil injection mode, the efficiency and the quality are higher, and the negative influence on the performance of the circuit breaker caused by the injection of the hydraulic oil containing air is effectively avoided;
3. the oil storage, oil injection, vacuum pumping, process visualization and other functions are integrated into a whole, the integration degree is high, the circuit breakers of the hydraulic mechanisms of different manufacturers and models can have good adaptability, and the applicability is wide.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (8)
1. The utility model provides a high voltage circuit breaker does not have outage liquid oil injection device which characterized in that: including frame (1) and fix oil storage tank (2), oiling pump (3), oil storage solenoid valve (4), oiling solenoid valve (5), oil return solenoid valve (6), electropneumatic controller (7), power (8) in frame (1), oil storage solenoid valve (4) and oil return solenoid valve (6) all link to each other with oil storage tank (2) through the pipeline, oiling solenoid valve (5) link to each other with oil storage tank (2) through oiling pump (3), oiling solenoid valve (5) and oil return solenoid valve (6) still link to each other through the hose three-way pipe, the three-way pipe still meets with high voltage circuit breaker's liquid oil discharge opening, power (8) are used for supplying power for all electrical equipment, electropneumatic controller (7) are used for controlling all electrical equipment operation.
2. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: the oil storage tank (2) is located on the rear side of the bottom of the rack (1), and the oil storage electromagnetic valve (4), the oil injection electromagnetic valve (5) and the oil return electromagnetic valve (6) are located at the front end of the bottom of the rack (1).
3. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: the upper portion of frame (1) front end is equipped with touch display screen (9), touch display screen (9) link to each other with electric controller (7) and power (8).
4. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: and a pressure sensor and a flow sensor are also arranged at the outlet of the oil injection pump (3).
5. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: the electric controller (7) and the power supply (8) are fixed above the oil storage tank (2).
6. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: still be fixed with vacuum pump (10) on frame (1), vacuum pump (10) link to each other with oil storage tank (2) through vacuum solenoid valve.
7. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: and a heater (11) is arranged on the outer side wall of the oil storage tank (2).
8. The uninterrupted liquid oil injection device of the high-voltage circuit breaker as claimed in claim 1, wherein: an oil level detection sensor (12) and a vacuum sensor (13) are arranged in the oil storage tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122211633.5U CN216412940U (en) | 2021-09-13 | 2021-09-13 | Uninterrupted liquid oil injection device for high-voltage circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122211633.5U CN216412940U (en) | 2021-09-13 | 2021-09-13 | Uninterrupted liquid oil injection device for high-voltage circuit breaker |
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| CN216412940U true CN216412940U (en) | 2022-04-29 |
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| CN202122211633.5U Active CN216412940U (en) | 2021-09-13 | 2021-09-13 | Uninterrupted liquid oil injection device for high-voltage circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889360A (en) * | 2021-09-13 | 2022-01-04 | 国家电网有限公司 | High-voltage circuit breaker liquid oil injection device and high-voltage circuit breaker liquid oil injection method |
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2021
- 2021-09-13 CN CN202122211633.5U patent/CN216412940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889360A (en) * | 2021-09-13 | 2022-01-04 | 国家电网有限公司 | High-voltage circuit breaker liquid oil injection device and high-voltage circuit breaker liquid oil injection method |
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