CN112924124A - Vibration table for testing vibration characteristic of gas relay and testing method - Google Patents
Vibration table for testing vibration characteristic of gas relay and testing method Download PDFInfo
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- CN112924124A CN112924124A CN202110122175.XA CN202110122175A CN112924124A CN 112924124 A CN112924124 A CN 112924124A CN 202110122175 A CN202110122175 A CN 202110122175A CN 112924124 A CN112924124 A CN 112924124A
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- liquid
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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Abstract
The application discloses a vibrating table for testing the vibration characteristic of a gas relay and a testing method, wherein the gas relay is used for a transformer, and the vibrating table comprises a vibrating table body used for placing the gas relay; the oil storage device is used for storing insulating liquid required by the vibration characteristic test of the gas relay; the liquid pipeline is used for connecting the oil storage device and the pipeline of the gas relay; the first oil well pump is used for pumping the required insulating liquid into the gas relay through a liquid pipeline; the liquid recovery device is used for storing the insulating liquid after the gas relay test is finished; and the second oil well pump is used for pumping the insulating liquid after the test to the liquid recovery device through a liquid pipeline. By the method, the insulating liquid can be conveyed to the gas relay clamped on the vibrating table through the liquid pipeline through the dynamic control program, so that the time for manually filling the insulating liquid is saved, and the risk that the insulating liquid is filled on the surface of the relay and outside the relay during manual filling is avoided.
Description
Technical Field
The application relates to the technical field of gas relays, in particular to a vibration table and a test method for testing vibration characteristics of a gas relay.
Background
The gas relay for the transformer is an important component for non-electric quantity protection of the transformer, can be used for a transformer body and an on-load tap-changer, and plays an important role in fault alarm and protection in the transformer. However, in recent years, defects and accidents related to the gas relay for the transformer occur frequently, and more attention is paid to quality control of the gas relay. In the conventional calibration of the gas relay, the calibration on the flow rate, the volume and the pressure of the gas relay is more and more mature, the calibration on the vibration characteristic test of the gas relay is less, and the vibration performance can check whether the device malfunctions under the condition that the gas relay is subjected to large acceleration impact in different directions.
In the existing vibrating tables, no vibrating table specially used for carrying out verification aiming at the characteristics of the gas relay is provided, and all the vibrating tables are universal vibrating tables. When the vibration test is carried out on the gas relay, the inside of the gas relay needs to be filled with insulating liquid. Because when carrying out vibration test to independent gas relay, both ends respectively have a through-hole when the relay level was placed, and conventional practice is after plugging up the through-hole with the lid, from relay upper portion toward wherein pour into insulating liquid into, then live upper portion is sealed, clamps the relay on the shaking table again. The disadvantage of this conventional approach is that the insulating liquid needs to be manually injected into the gas relay each time, and then the relay is clamped well, with relatively low efficiency, and that the insulating liquid needs to be re-injected each time.
Disclosure of Invention
The application provides a vibrating table and a testing method for testing vibration characteristics of a gas relay, and aims to solve the problem that the gas relay needs to manually irrigate insulating liquid in the prior art.
In order to solve the technical problem, the application provides a shaking table of gas relay vibration characteristic test, and gas relay is used for the transformer, and the shaking table includes: the vibrating table body is used for placing the gas relay; the oil storage device is used for storing insulating liquid required by the vibration characteristic test of the gas relay; the liquid pipeline is used for connecting the oil storage device and the pipeline of the gas relay; the first oil well pump is used for pumping the required insulating liquid into the gas relay through a liquid pipeline; the liquid recovery device is used for storing the insulating liquid after the gas relay test is finished; and the second oil well pump is used for pumping the insulating liquid after the test to the liquid recovery device through a liquid pipeline.
Optionally, the liquid conduit is a smooth sealed conduit, and the liquid conduit has a pipe diameter of 25mm or 50 mm.
Optionally, the power of the first pump and the second pump does not exceed 400W.
Optionally, the vibration table further comprises: and the oil speed regulating valve is arranged at the outlet of the first oil pumping pump and is used for controlling the flow speed of the insulating liquid in the liquid pipeline.
Optionally, the oil speed regulating valve controls the flow speed of the insulating liquid in the liquid pipeline to be continuously adjustable within a preset range of 0-1L/s, so as to ensure that the liquid in the liquid pipeline is recycled completely when the second oil-well pump extracts the insulation.
Optionally, the vibration table further comprises: and the electromagnetic regulating valve comprises a first electromagnetic regulating valve and a second electromagnetic regulating valve which are respectively arranged at left and right outlets of the gas relay liquid pipeline and used for preventing insulating liquid from flowing out of the gas relay.
Optionally, the oil storage device, the liquid pipeline, the first oil well pump, the liquid recovery device and the second oil well pump are respectively arranged on two sides of the vibrating table body.
Optionally, the gas relay is fixed in the preset area by the vibrating table body through a screw; the through holes on the two sides of the gas relay are connected with the liquid pipeline through flanges and/or sealing rings.
Optionally, the inside of the oil storage device is provided with a liquid level meter for monitoring the volume of the internal insulating liquid in real time.
In order to solve the technical problem, the application provides a method for testing vibration characteristics of a gas relay, which is applied to the vibration platform and comprises the following steps: mounting a gas relay on a vibration table; insulating liquid in the oil storage device is conveyed to the gas relay through a liquid pipeline through a preset control program; when the insulating liquid in the gas relay is full, the liquid pipeline is locked, and vibration characteristic test is carried out; and after the test is finished, the second oil well pump is utilized to recover the insulating liquid in the gas relay and the liquid pipeline to the liquid recovery device.
The application provides a vibrating table for testing the vibration characteristic of a gas relay and a testing method, wherein the gas relay is used for a transformer, and the vibrating table comprises a vibrating table body used for placing the gas relay; the oil storage device is used for storing insulating liquid required by the vibration characteristic test of the gas relay; the liquid pipeline is used for connecting the oil storage device and the pipeline of the gas relay; the first oil well pump is used for pumping the required insulating liquid into the gas relay through a liquid pipeline; the liquid recovery device is used for storing the insulating liquid after the gas relay test is finished; and the second oil well pump is used for pumping the insulating liquid after the test to the liquid recovery device through a liquid pipeline. By the method, the insulating liquid can be conveyed to the gas relay clamped on the vibrating table through the liquid pipeline through the dynamic control program, so that the time for manually filling the insulating liquid is saved, and the risk that the insulating liquid is filled on the surface of the relay and outside the relay during manual filling is avoided.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a vibration table for testing the vibration characteristics of a gas relay according to the present application;
fig. 2 is a schematic flow chart of an embodiment of a method for testing vibration characteristics of a gas relay according to the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present application, the vibration table and the test method for testing the vibration characteristics of the gas relay provided in the present application are further described in detail below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a vibration table for testing vibration characteristics of a gas relay according to the present application. In this embodiment, the vibration table may include a vibration table body 7, an oil storage device 1, a fluid conduit 4, a first pump 2, a fluid recovery device 9, and a second pump 8.
The vibration table body 7 can be used for placing the gas relay 5; the oil storage device 1 can be used for storing insulating liquid required by the vibration characteristic test of the gas relay; the liquid pipeline 4 can be used for connecting the oil storage device 1 and a pipeline of a gas relay; the first oil well pump 2 can be used for pumping required insulating liquid into the gas relay through the liquid pipeline 4; the liquid recovery device 9 can be used for storing insulating liquid after the gas relay test is finished; the second pump 8 may be used to pump the insulation liquid after the test to the liquid recovery device 9 through the liquid line 4.
Alternatively, the vibration table body 7 may fix the gas relay in a preset area by screws; the through holes on the two sides of the gas relay are connected with the liquid pipeline 4 through flanges and/or sealing rings.
Optionally, the inside of the oil storage device 1 may be further provided with a liquid level meter, and the liquid level meter may be used for monitoring the volume of the internal insulation liquid in real time.
The gas relay 5 may be understood as a measured gas regulator.
Further, the liquid pipeline 4 can be a smooth sealed pipeline, and the pipe diameter of the liquid pipeline 4 can be 25mm or 50 mm; the power of the first oil well pump 2 and the second oil well pump 8 is preferably not more than 400W.
Optionally, the vibration table may further include an oil speed adjusting valve 3 and an electromagnetic adjusting valve 6.
The oil speed adjusting valve 3 can be arranged at the outlet of the first oil well pump 2 and used for controlling the flow rate of the insulating liquid in the liquid pipeline 4. Preferably, when the first oil well pump 2 works, the oil speed regulating valve 3 can control the flow speed of the insulating liquid in the liquid pipeline 4 to be continuously adjustable within a preset range of 0-500 mL/s; when the second oil-well pump 8 works, the oil speed regulating valve 3 controls the flow speed of the insulating liquid in the liquid pipeline 4 to be continuously adjustable within a preset range of 0-1L/s, so that the liquid in the liquid pipeline 4 is completely recovered when the second oil-well pump 8 extracts the insulating liquid.
The electromagnetic adjusting valve 6 may include a first electromagnetic adjusting valve and a second electromagnetic adjusting valve, which may be respectively provided at left and right outlets of the gas relay liquid pipe 4 for preventing the insulating liquid from flowing out of the gas relay.
In addition, the shaking table of this application can directly improve on traditional shaking table. The oil storage device 1, the liquid pipeline 4, the first oil well pump 2, the liquid recovery device 9 and the second oil well pump 8 are respectively arranged at two sides of the vibration table body 7, as shown in fig. 1.
Specifically, the oil storage device 1, the first oil well pump 2 and the oil speed regulator 3 may be disposed at one side of the vibration table body 7, and the liquid recovery device 9 and the second oil well pump 8 may be disposed at the other side of the vibration table body 7.
The vibrating table of the embodiment can improve the overall sealing performance of the liquid pipeline, and therefore the sealing ring and the flange are adopted to ensure the air tightness of the overall device; secondly, the vibrating table can ensure that the insulating liquid is filled in the gas relay, so that data can be obtained after a plurality of tests by controlling the flow unchanged, or the upper cover of the gas relay is opened, and the upper cover is covered again after the insulating liquid is filled in the gas relay.
Referring to fig. 2, fig. 2 is a schematic flow chart of an embodiment of a method for testing vibration characteristics of a gas relay according to the present application. In this embodiment, the method may specifically include the following steps:
s110: the gas relay is mounted on a vibration table.
S120: and insulating liquid in the oil storage device is conveyed to the gas relay through a liquid pipeline through a preset control program.
S130: and (4) when the insulating liquid in the gas relay is full, locking the liquid pipeline, and testing the vibration characteristic.
S140: and after the test is finished, the second oil well pump is utilized to recover the insulating liquid in the gas relay and the liquid pipeline to the liquid recovery device.
The testing method of the embodiment can be applied to the vibrating table in the embodiment, the gas relay is mounted and clamped by screws on the vibrating table body, through holes on two sides of the gas relay are tightly combined with a liquid pipeline through a sealing ring and a flange, and insulating liquid in the oil storage device can be conveyed into the gas relay through the liquid pipeline through a preset automatic control program.
After the insulating liquid of the gas relay is full of, the liquid pipeline can be locked, the insulating liquid of the gas relay is kept in a full and sealed state, then a vibration test table control program is started, vibration characteristic test of the gas relay is carried out, after the test is finished, the liquid pipeline and the insulating liquid inside the gas relay can be cleaned by the second oil well pump, the pollution to the vibration table is prevented, and the experiment is completed at last. The specific use method of the vibration table has been described in detail in the above embodiments, and is not repeated herein.
The application provides a vibrating table for testing the vibration characteristic of a gas relay and a testing method, wherein the gas relay is used for a transformer, and the vibrating table comprises a vibrating table body used for placing the gas relay; the oil storage device is used for storing insulating liquid required by the vibration characteristic test of the gas relay; the liquid pipeline is used for connecting the oil storage device and the pipeline of the gas relay; the first oil well pump is used for pumping the required insulating liquid into the gas relay through a liquid pipeline; the liquid recovery device is used for storing the insulating liquid after the gas relay test is finished; and the second oil well pump is used for pumping the insulating liquid after the test to the liquid recovery device through a liquid pipeline. By the method, the insulating liquid can be conveyed to the gas relay clamped on the vibrating table through the liquid pipeline through the dynamic control program, so that the time for manually filling the insulating liquid is saved, and the risk that the insulating liquid is filled on the surface of the relay and outside the relay during manual filling is avoided.
It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. In addition, for convenience of description, only a part of structures related to the present application, not all of the structures, are shown in the drawings. The step numbers used herein are also for convenience of description only and are not intended as limitations on the order in which the steps are performed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second", etc. in this application are used to distinguish between different objects and not to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (11)
1. A shaking table of gas relay vibration characteristic test, characterized in that, gas relay is used for the transformer, the shaking table includes:
the vibration table body is used for placing the gas relay;
the oil storage device is used for storing insulating liquid required by the vibration characteristic test of the gas relay;
the liquid pipeline is used for connecting the oil storage device and a pipeline of the gas relay;
the first oil well pump is used for pumping required insulating liquid into the gas relay through the liquid pipeline;
the liquid recovery device is used for storing the insulating liquid after the gas relay test is finished;
and the second oil well pump is used for pumping the insulating liquid after the test to the liquid recovery device through the liquid pipeline.
2. A vibration table according to claim 1, wherein the liquid conduit is a smooth sealed conduit with a pipe diameter of 25mm or 50 mm.
3. The vibration table of claim 1, wherein the power of the first pump and the second pump does not exceed 400W.
4. The vibratory table of claim 1, further comprising:
and the oil speed regulating valve is arranged at the outlet of the first oil pumping pump and is used for controlling the flow speed of the insulating liquid in the liquid pipeline.
5. Vibrating table according to claim 4, characterised in that the oil-rate regulating valve controls the flow rate of the insulating liquid in the liquid conduit to be continuously adjustable within a preset range of 0-500 mL/s.
6. The vibration table according to claim 4, wherein the oil speed regulating valve controls the flow rate of the insulation liquid in the liquid pipeline to be continuously adjustable within a preset range of 0-1L/s, so as to ensure that the liquid in the liquid pipeline is recycled completely when the second oil-well pump extracts the insulation.
7. The vibratory table of claim 1, further comprising:
and the electromagnetic regulating valve comprises a first electromagnetic regulating valve and a second electromagnetic regulating valve which are respectively arranged at the left outlet and the right outlet of the gas relay liquid pipeline and used for preventing insulating liquid from flowing out of the gas relay.
8. The vibration table according to claim 1, wherein the oil storage device, the liquid pipeline, the first oil well pump, the liquid recovery device and the second oil well pump are respectively disposed on two sides of the vibration table body.
9. The vibration table according to claim 1, wherein the vibration table body fixes the gas relay in a preset area by a screw; and through holes on two sides of the gas relay are connected with the liquid pipeline through flanges and/or sealing rings.
10. Vibrating table according to claim 1, characterised in that the oil storage is internally provided with a level gauge for real-time monitoring of the internal insulating liquid volume.
11. A method for testing vibration characteristics of a gas relay, which is applied to the vibration table of any one of claims 1 to 10, the method comprising:
mounting a gas relay on a vibration table;
insulating liquid in the oil storage device is conveyed to the gas relay through a liquid pipeline through a preset control program;
when the insulating liquid in the gas relay is full, the liquid pipeline is locked, and vibration characteristic test is carried out;
and after the test is finished, the gas relay and the insulating liquid in the liquid pipeline are recovered to a liquid recovery device by using a second oil well pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644488 | 2020-12-30 | ||
| CN2020116444883 | 2020-12-30 |
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| CN112924124A true CN112924124A (en) | 2021-06-08 |
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| CN202110122175.XA Pending CN112924124A (en) | 2020-12-30 | 2021-01-28 | Vibration table for testing vibration characteristic of gas relay and testing method |
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2021
- 2021-01-28 CN CN202110122175.XA patent/CN112924124A/en active Pending
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| CN103808480A (en) * | 2012-11-14 | 2014-05-21 | 中国广东核电集团有限公司 | Nuclear power station transformer gas relay seismic test method |
| CN210401587U (en) * | 2019-06-11 | 2020-04-24 | 常州市雷利压力控制器有限公司 | Vibration testing device for pressure switch |
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