CN113740722A - An intelligent detection device and method for gas relay calibration - Google Patents
An intelligent detection device and method for gas relay calibration Download PDFInfo
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- CN113740722A CN113740722A CN202110809952.8A CN202110809952A CN113740722A CN 113740722 A CN113740722 A CN 113740722A CN 202110809952 A CN202110809952 A CN 202110809952A CN 113740722 A CN113740722 A CN 113740722A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
本发明属于变压器保护装置技术领域，尤其涉及一种用于气体继电器校验的智能检测方法。本发明由气体继电器置于继电器放置平台上，继电器放置平台下连接第二自动液压装置；气体继电器一端通过第一法兰与自动液压装置的一端相连接，气体继电器另一端通过第二法兰连接第三自动液压装置；第三自动液压装置另一端依次连接过滤装置、回油阀及油箱；油箱另一端与油泵、流量计、进油阀及自动液压装置的另一端依次连接；过滤装置另一端还依次连接轻瓦斯油阀、液位计及油箱。本发明能够使气体继电器安装在合适固定位置并保持水平状态，减少人力劳动强度，实现自动化。还能够过滤气体继电器中大颗粒杂质，避免堵塞通道，污染油质，显著提高检测结果的精确度。
The invention belongs to the technical field of transformer protection devices, and in particular relates to an intelligent detection method for gas relay calibration. In the present invention, the gas relay is placed on the relay placement platform, and the second automatic hydraulic device is connected under the relay placement platform; one end of the gas relay is connected with one end of the automatic hydraulic device through the first flange, and the other end of the gas relay is connected through the second flange. The third automatic hydraulic device; the other end of the third automatic hydraulic device is connected to the filter device, the oil return valve and the oil tank in sequence; the other end of the oil tank is connected to the oil pump, the flow meter, the oil inlet valve and the other end of the automatic hydraulic device in sequence; the other end of the filter device Also connect the light gas oil valve, level gauge and fuel tank in sequence. The invention can enable the gas relay to be installed in a suitable fixed position and maintain a horizontal state, thereby reducing the labor intensity and realizing automation. It can also filter large particles of impurities in the gas relay to avoid clogging the channel and contaminate the oil quality, and significantly improve the accuracy of the detection results.
Description
Technical Field
The invention belongs to the technical field of transformer protection devices, and particularly relates to an intelligent detection device and method for gas relay calibration, in particular to a detection device and method for a gas automatic horizontal hydraulic relay.
Background
The gas relay is a main protection device of the transformer and is arranged on a connecting pipe between a transformer oil tank and an oil conservator. The inclination angle of the pipeline is between 1% and 1.5%, so that produced fault gas can flow into the gas relay, when the transformer breaks down, a large amount of gas or oil is expanded, at the moment, oil-gas flow can rush to the oil storage cabinet, and the flowing oil-gas flow enables the gas relay to generate heavy gas tripping action. If a slight fault or air enters the transformer, a light gas alarm signal can be generated on the upper contact of the gas relay. The latent fault of the transformer can be found as early as possible through the heavy gas tripping action or the light gas alarm signal, and the transformer accident can be prevented in time. However, in practical application, as the operation life of the gas relay increases, a series of technical problems such as setting value change, poor contact of contacts, aging of elements and the like may occur, so that periodic detection of the gas relay is particularly important.
The existing detection device is complex in operation, a large amount of manpower is consumed to assemble and disassemble the gas relay for detection, and meanwhile, the gas relay cannot be guaranteed to be horizontal due to manual operation, so that the problem of inaccurate detection data can be caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an intelligent detection device and method for gas relay calibration. The invention aims to realize the detection work of heavy gas tripping action and light gas alarm signals of the gas relay after the gas relay is automatically and horizontally clamped.
The technical scheme adopted by the invention for realizing the purpose is as follows:
an intelligent detection device for gas relay calibration comprises a gas relay, wherein the upper part of the gas relay is connected with a gas release valve, a light gas alarm signal terminal and a heavy gas trip signal terminal; the gas relay is arranged on the upper part of the relay placing platform, and the lower part of the relay placing platform is connected with a second automatic hydraulic device; one end of the gas relay is connected with one end of the automatic hydraulic device through a first flange, and the other end of the gas relay is connected with a third automatic hydraulic device through a second flange; the other end of the third automatic hydraulic device is connected with the filtering device through an oil pipe; the other end of the filter device is connected with one end of an oil return valve and one end of an oil tank through an oil pipe; the other end of the oil tank is connected with an oil pump through an oil pipe, the other end of the oil pump is connected to a flowmeter through the oil pipe, and the other end of the flowmeter is connected with the other end of the automatic hydraulic device through the oil pipe and an oil inlet valve; the other end of the filtering device is also connected with a light gas oil valve and a liquid level meter through an oil pipe, and the other end of the liquid level meter is connected with an oil tank through an oil pipe.
Furthermore, a level gauge is arranged at the upper part of the gas relay.
Furthermore, the lower part of the relay placing platform is connected with a second automatic hydraulic device in a welding mode.
Furthermore, an oil inlet at one end of the gas relay is connected with one end of the automatic hydraulic device through a first flange, and an oil outlet at the other end of the gas relay is connected with a third automatic hydraulic device through a second flange; the oil outlet of the third automatic hydraulic device is connected with the oil inlet of the filtering device through an oil pipe.
Further, an oil outlet of the filtering device is connected with an oil return valve and a second oil inlet of the oil tank through an oil pipe; the oil outlet of the oil tank is connected with the oil inlet of the oil pump through an oil pipe, the oil outlet of the oil pump is connected to the oil inlet of the flow meter through the oil pipe, and the oil outlet of the flow meter is connected with the other end of the automatic hydraulic device through the oil pipe and the oil inlet valve.
Furthermore, the oil outlet of the filtering device is also connected with the light gas oil valve and the oil inlet of the liquid level meter through an oil pipe, and the oil outlet of the liquid level meter is connected with the first oil inlet of the oil tank through the oil pipe.
An intelligent detection method for gas relay verification comprises the following steps:
Further, when the oil pump, the oil inlet valve and the oil return valve are closed, and a vent valve at the upper end of the gas relay is opened, external air enters the gas relay, the oil level inside the gas relay begins to fall, oil enters an oil inlet of the filtering device through an oil outlet of the gas relay through the second flange and the third automatic hydraulic device, after large-particle impurities inside the gas relay are filtered, oil flows through the oil outlet of the filtering device, enters the liquid level meter through the light gas oil valve and the oil pipe through the oil pipe for oil volume detection, and transformer oil returns to the oil tank through the oil outlet of the liquid level meter through the oil pipe; when the light gas alarm signal terminal generates a signal, the liquid volume is measured by the liquid level meter to obtain a light gas alarm value, so that the light gas alarm signal detection is completed.
Further, the external instrument is a signal indicating device.
Further, when the flow rate of the oil flow reaches a certain value, the value is any one of 0 to 4.0 m.
The invention has the following beneficial effects and advantages:
the invention relates to an intelligent detection device for checking a gas relay, wherein an automatic hydraulic platform is arranged at the lower end of the gas relay to be detected, the gas relay can be lifted to a fixed required position, and the horizontal condition of the gas relay is observed and adjusted. The two ends of the gas relay are also provided with an automatic hydraulic device and a flange, the gas relay can be automatically fixed by one key, and a heavy gas trip signal and a light gas alarm signal are led out from the upper end of the gas relay. The oil speed in the oil pipe is changed by controlling the rotating speed of the oil pump, and when the action of a heavy gas tripping signal of the gas relay is detected, the flow value measured by the flowmeter is recorded. And opening an air release valve of the gas relay to lower the oil liquid level in the gas relay, and measuring the liquid volume by using the liquid level meter to obtain a light gas alarm value when detecting the light gas alarm model action of the gas relay.
By adopting the structure, the gas relay can be installed at a proper fixed position and kept in a horizontal state, the gas relay is prevented from being complex in operation and needing manpower to assemble and disassemble, and automation is realized. Meanwhile, large particle impurities in the gas relay can be filtered, the phenomenon that the large particle impurities block a channel and pollute oil is avoided, and the accuracy of a detection result can be obviously improved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of the present invention.
In the figure:
the automatic hydraulic system comprises an oil tank 1, an oil pump 2, a flowmeter 3, an oil inlet valve 4, a first automatic hydraulic device 5, a first flange 6, a vent valve 7, a light gas alarm signal terminal 8, a heavy gas trip signal terminal 9, a level gauge 10, a gas relay 11, a relay placement platform 12, a second automatic hydraulic device 13, a second flange 14, a third automatic hydraulic device 15, a filtering device 16, a light gas oil valve 17, a liquid level meter 18, an oil return valve 19, a signal indicating device 20, a first oil inlet 21 and a second oil inlet 22.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The solution of some embodiments of the invention is described below with reference to fig. 1.
Example 1
The invention provides an embodiment, and relates to an intelligent detection device for gas relay verification, as shown in fig. 1, and fig. 1 is a schematic structural diagram of the invention.
The device comprises a gas relay 11 to be detected, wherein the gas relay 11 is placed on the upper part of a relay placing platform 12, and the lower part of the relay placing platform 12 is connected with a second automatic hydraulic device 13 in a welding mode.
An oil inlet at one end of the gas relay 11 is connected with one end of the automatic hydraulic device 5 through a first flange 6, and an oil outlet at the other end of the gas relay 11 is connected with an oil inlet of a third automatic hydraulic device 15 through a second flange 14; an oil outlet at the other end of the third automatic hydraulic device 15 is connected with an oil inlet of the filtering device 16 through an oil pipe; an oil outlet of the filtering device 16 is connected with an oil return valve 19 and a second oil inlet 22 of the oil tank 1 through oil pipes; an oil outlet of the oil tank 1 is connected with an oil inlet of the oil pump 2 through an oil pipe, an oil outlet of the oil pump 2 is connected to an oil inlet of the flow meter 3 through an oil pipe, and an oil outlet of the flow meter 3 is connected with the other end of the automatic hydraulic device 5 through an oil pipe and an oil inlet valve 4;
the oil outlet of the filtering device 16 is also connected with a light gas oil valve 17 and an oil inlet of a liquid level meter 18 through oil pipes, and the oil outlet of the liquid level meter 18 is connected with a first oil inlet 21 of the oil tank 1 through the oil pipes.
The gas relay 11 is provided with a gas release valve 7, a light gas alarm signal terminal 8 and a heavy gas tripping signal terminal 9; a level 10 is also placed on the upper part of the gas relay 11.
Example 2
The invention also provides an embodiment, which is an intelligent detection method for gas relay verification, and the specific implementation process comprises the following steps:
And 2, placing the level meter 10 on the gas relay 11, and adjusting the gas relay 11 to be horizontal, so that the gas relay 11 is kept in a horizontal state before detection, and the problem that the measured data is deviated due to the fact that the gas relay 11 is not in the horizontal state is avoided.
And 3, operating the first automatic hydraulic device 5 and the third automatic hydraulic device 15 to enable the first flange 6 and the second flange 14 to clamp the gas relay 11 to a fixed position.
And 4, connecting the light gas alarm signal terminal 8 and the heavy gas trip signal terminal 9 at the upper end of the gas relay 11 into an external instrument signal indicating device 20 through a connecting wire to observe whether a signal exists or not.
When the signal of the gas relay 11 heavy gas trip signal terminal 9 is detected, the flow value measured by the flowmeter 3 is recorded.
And step 5, filling the oil tank 1 with transformer oil, opening the oil inlet valve 4 and the oil return valve 19, closing the light gas oil valve 17, and opening the air release valve 7 at the upper end of the gas relay 11 to lower the oil level in the gas relay 11.
The device can filter large-particle impurities in the gas relay 11 through the filtering device 16, so that the problems that the large-particle impurities block a channel, pollute oil and influence detection can be avoided.
Example 3
The invention further provides an embodiment, and the specific implementation process is shown in embodiment 2, wherein the method is an intelligent detection method for gas relay verification.
When closing oil pump 2, when inlet valve 4 and oil return valve 19, open bleed valve 7 on gas relay 11, outside air gets into inside gas relay 11, the inside oil level of gas relay 11 begins to descend, oil passes through second flange 14 and third automatic hydraulic means 15 and gets into the oil inlet of filter equipment 16 through the oil-out of gas relay 11, behind the inside large granule impurity of filtering gas relay 11, the oil-out that the oil stream passes through filter equipment 16, it detects to go into level gauge 18 through light gas oil valve 17 and oil pipe rethread oil pipe for oil volume, the oil-out of level gauge 18 is connected with oil tank 1 through oil pipe, make transformer oil return to in the oil tank 1. When the light gas alarm signal terminal 8 generates a signal, the liquid volume is measured by the liquid level meter 18 to obtain a light gas alarm value, so that the detection of the light gas alarm signal is completed.
In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "connected" and "fixed" are to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the indicated devices or units must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that:
the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. An intelligent detection device for gas relay calibration comprises a gas relay, wherein the upper part of the gas relay is connected with a gas release valve, a light gas alarm signal terminal and a heavy gas trip signal terminal; the method is characterized in that: the gas relay is arranged on the upper part of the relay placing platform, and the lower part of the relay placing platform is connected with a second automatic hydraulic device; one end of the gas relay is connected with one end of the automatic hydraulic device through a first flange, and the other end of the gas relay is connected with a third automatic hydraulic device through a second flange; the other end of the third automatic hydraulic device is connected with the filtering device through an oil pipe; the other end of the filter device is connected with one end of an oil return valve and one end of an oil tank through an oil pipe; the other end of the oil tank is connected with an oil pump through an oil pipe, the other end of the oil pump is connected to a flowmeter through the oil pipe, and the other end of the flowmeter is connected with the other end of the automatic hydraulic device through the oil pipe and an oil inlet valve; the other end of the filtering device is also connected with a light gas oil valve and a liquid level meter through an oil pipe, and the other end of the liquid level meter is connected with an oil tank through an oil pipe.
2. The intelligent detection device for the gas relay verification according to claim 1, wherein: the upper part of the gas relay is also provided with a level gauge.
3. The intelligent detection device for the gas relay verification according to claim 1, wherein: the lower part of the relay placing platform is connected with a second automatic hydraulic device in a welding mode.
4. The intelligent detection device for the gas relay verification according to claim 1, wherein: an oil inlet at one end of the gas relay is connected with one end of the automatic hydraulic device through a first flange, and an oil outlet at the other end of the gas relay is connected with a third automatic hydraulic device through a second flange; the oil outlet of the third automatic hydraulic device is connected with the oil inlet of the filtering device through an oil pipe.
5. The intelligent detection device for the gas relay verification according to claim 1, wherein: an oil outlet of the filtering device is connected with an oil return valve and a second oil inlet of the oil tank through an oil pipe; the oil outlet of the oil tank is connected with the oil inlet of the oil pump through an oil pipe, the oil outlet of the oil pump is connected to the oil inlet of the flow meter through the oil pipe, and the oil outlet of the flow meter is connected with the other end of the automatic hydraulic device through the oil pipe and the oil inlet valve.
6. The intelligent detection device for the gas relay verification according to claim 1, wherein: the oil outlet of the filtering device is also connected with the light gas oil valve and the oil inlet of the liquid level meter through an oil pipe, and the oil outlet of the liquid level meter is connected with the first oil inlet of the oil tank through the oil pipe.
7. An intelligent detection method for gas relay calibration is characterized in that: the method comprises the following steps:
step 1, placing a gas relay to be detected on a relay placing platform, and operating a first automatic hydraulic device, a second automatic hydraulic device and a third automatic hydraulic device of an air generator to enable the gas relay to be installed at a proper fixed position;
step 2, placing the level gauge on a gas relay, and adjusting the gas relay to a horizontal state;
step 3, clamping the gas relay to a fixed position by the first flange and the second flange through the first automatic hydraulic device and the third automatic hydraulic device;
step 4, connecting a light gas alarm signal terminal and a heavy gas trip signal terminal at the upper end of the gas relay into an external instrument to observe whether signals exist or not; when a heavy gas tripping signal terminal signal of the gas relay is detected, recording a flow value measured by the flowmeter;
step 5, filling transformer oil in the oil tank, opening the oil inlet valve and the oil return valve, closing the light gas oil valve, and opening an air release valve at the upper end of the gas relay to lower the oil level in the gas relay;
step 6, an oil tank is connected with an oil pipe through an oil outlet and enters an oil inlet of the oil pump, after the oil flow speed in the oil pipe is changed through the rotating speed of the oil pump, oil is sent to the oil inlet of a flow meter from the oil outlet of the oil pump through the oil pipe, the flow rate is measured by the flow meter, oil with the flow rate passes through the gas relay after oil flow enters the oil inlets of the automatic hydraulic device and the first flange from the oil outlet of the flow meter through the oil pipe and an oil inlet valve, after the gas relay is filled with the oil, a gas release valve is closed, and the oil flow enters the oil inlet of the filtering device through the oil outlet of the second flange and the third automatic hydraulic device through the connection of the oil pipe; after large particle impurities in the gas relay are filtered, oil flows pass through an oil outlet of the filtering device and enter an oil return port of the oil tank through an oil pipe and an oil return valve, so that the oil flows return to the oil tank; when the flow rate of the oil flow reaches a certain value and the heavy gas trip signal terminal generates a signal, the heavy gas trip detection is finished.
8. An intelligent detection method for gas relay verification according to claim 7, wherein the intelligent detection method comprises the following steps: when the oil pump, the oil inlet valve and the oil return valve are closed, and the air release valve at the upper end of the gas relay is opened, external air enters the gas relay, the oil level in the gas relay begins to fall, oil enters the oil inlet of the filtering device through the oil outlet of the gas relay through the second flange and the third automatic hydraulic device, after large-particle impurities in the gas relay are filtered, oil flows through the oil outlet of the filtering device, enters the liquid level meter through the light gas oil valve and the oil pipe through the oil pipe for oil volume detection, and transformer oil returns to the oil tank through the oil outlet of the liquid level meter through the oil pipe; when the light gas alarm signal terminal generates a signal, the liquid volume is measured by the liquid level meter to obtain a light gas alarm value, so that the light gas alarm signal detection is completed.
9. An intelligent detection method for gas relay verification according to claim 7, wherein the intelligent detection method comprises the following steps: the external instrument is a signal indicating device.
10. An intelligent detection method for gas relay verification according to claim 7, wherein the intelligent detection method comprises the following steps: when the flow rate of the oil flow reaches a certain value, the value is any one of 0 to 4.0 m.
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| CN113740722B (en) | 2024-06-11 |
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