CN211401672U - Aging test system of true sealing ring - Google Patents
Aging test system of true sealing ring Download PDFInfo
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- CN211401672U CN211401672U CN201922277513.8U CN201922277513U CN211401672U CN 211401672 U CN211401672 U CN 211401672U CN 201922277513 U CN201922277513 U CN 201922277513U CN 211401672 U CN211401672 U CN 211401672U
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 230000032683 aging Effects 0.000 title claims abstract description 26
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 16
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 claims 1
- 238000006731 degradation reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 15
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an aging test system of a true sealing ring, which comprises a tested module and a detection module; the tested module comprises a top cover plate, a test flange, an inflatable flange, a base plate, a plurality of bolts and nuts; the top cover plate, the test flange, the inflatable flange and the bottom cover plate are all provided with the same number of through holes with the same inner diameter, the same positions and uniform distribution, and the top cover plate, the test flange, the inflatable flange and the base plate are connected with nuts through the bolts; the detection module comprises a sulfur hexafluoride gas leak detector for detecting the gas leakage rate of the tested true sealing ring. The utility model provides an aging testing system of true type sealing washer has accurately simulated the operating condition of true type sealing washer under the operating condition, can detect out the performance change data of being surveyed true type sealing washer under the many ageing factor condition effectively, and whole test system structure sets up rationally, and the test process is safe, convenient and reliable.
Description
Technical Field
The utility model belongs to the technical field of the experimental technique of sealing washer and specifically relates to an aging testing system of true sealing washer is related to.
Background
In the process of power transmission, sulfur hexafluoride Gas with certain pressure is filled in a Gas Insulated Switchgear (GIS) to serve as an insulating and arc extinguishing medium, the high-voltage electrical appliance is isolated from the outside to protect the high-voltage electrical appliance, and the true sealing ring serves as a key sealing element of the butting face of a GIS shell and a basin-type insulator to prevent the leakage of the internal insulating medium.
In practical application, because the sealing ring is influenced by different working conditions such as temperature, humidity, salt fog, oxygen for a long time, the sealing performance is easy to decline or lose efficacy, so that the leakage of internal media is caused, and the safe and stable operation of GIS equipment is seriously threatened.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide a can effectively measure the ageing test system of true sealing washer of the performance change of true sealing washer under many ageing factors.
In order to achieve the above object, an embodiment of the present invention provides an aging test system for a true sealing ring, which includes a tested module and a detection module.
The tested module comprises a top cover plate, a test flange, an inflatable flange, a base plate, a plurality of bolts and nuts; the top cover plate, the test flange, the inflatable flange and the base plate are sequentially arranged from top to bottom.
The top cover plate is provided with a plurality of first through holes penetrating through the upper surface and the lower surface of the top cover plate, and the first through holes are uniformly distributed along the circumferential direction of the top cover plate.
The test flange is provided with second through holes which penetrate through the upper surface and the lower surface of the test flange and are the same as the first through holes in number; the positions of the second through holes correspond to the positions of the first through holes one by one, and the inner diameters of the second through holes are the same as those of the first through holes; and the upper surface of the test flange is provided with a mounting groove for mounting the tested true sealing ring along the circumferential direction of the test flange.
Third through holes which penetrate through the upper surface and the lower surface of the inflatable flange and are the same as the second through holes in number are formed in the inflatable flange; the positions of the third through holes correspond to the positions of the second through holes one by one, and the inner diameter of the third through holes is the same as that of the second through holes; and an inflation hole is formed in the side face of the inflation flange along the direction perpendicular to the third through hole.
Fourth through holes which penetrate through the upper surface and the lower surface of the base plate and are the same as the third through holes in number are formed in the base plate; the positions of the plurality of fourth through holes and the positions of the plurality of third through holes are in one-to-one correspondence, and the inner diameter of each fourth through hole is the same as that of each third through hole.
The quantity of bolt and nut with the quantity of first through-hole is the same, and every the screw rod of bolt all passes corresponding in proper order first through-hole, the second through-hole third through-hole with the fourth through-hole, and with first through-hole, the second through-hole the third through-hole with fourth through-hole threaded connection, and through corresponding the nut is fixed.
The detection module comprises a sulfur hexafluoride gas leak detector for detecting the gas leakage rate of the tested true sealing ring.
As a modification of the above, the number of the first through holes is 6.
As an improvement of the scheme, a sealing cover is arranged at the air inflation hole.
As an improvement of the scheme, an air inlet valve is arranged at the air inflation hole.
As an improvement of the scheme, the air inlet valve is a normally closed spring type air inlet valve.
As an improvement of the above scheme, the detection module further comprises a temperature and humidity circulating salt fog tank, and the temperature and humidity circulating salt fog tank is used for providing different environmental parameters, so that the sulfur hexafluoride gas leak detector detects the gas leakage rate of the corresponding measured true seal ring under different environmental parameters.
The embodiment of the utility model provides an aging testing system of true type sealing washer, through constructing rational in infrastructure module of being surveyed, wherein the module of being surveyed has adopted the lamina tecti of overlapping placing, the test flange, aerify flange and bed plate, it carries out structural fixing with the nut to assist the bolt of a plurality of specific quantity, make in the measurement process, fill into rated pressure's sulfur hexafluoride gas through the charging, utilize the cover-clasping method and the gaseous leak detector of sulfur hexafluoride to detect the true type sealing washer of being surveyed the module, whole test system has accurately simulated the operating condition of true type sealing washer under the actual operating mode condition, be favorable to accurately detecting out the performance change data of being surveyed true type sealing washer, and then the analysis obtains the sealing performance of being surveyed true type sealing washer under the multifactor condition. The whole test system is reasonable in structure arrangement, and the test process is safe, convenient and reliable.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a measured module of an aging test system for a true seal ring according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a top cover plate provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a test flange provided in an embodiment of the present invention;
fig. 4 is a schematic structural view of an inflatable flange provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base plate according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention, and do not indicate or imply that the device or component in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the embodiments of the present invention.
In the description of the embodiments of the present invention, it is to be understood that the terms "first," "second," "third," and "fourth" are used merely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual such relationship or order between such entities or operations or relative importance.
In describing embodiments of the present invention, it should be noted that the invention may be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In addition, the invention is operational with numerous general purpose or special purpose computing device environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multi-processor apparatus, distributed computing environments that include any of the above devices or equipment, and the like. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
An embodiment of the present invention provides an aging test system for true sealing rings, which includes a tested module and a detection module, specifically, please refer to fig. 1, which is a schematic structural diagram of the tested module of the aging test system for true sealing rings provided by the embodiment of the present invention, wherein, as shown in the figure, the tested module includes a top cover plate, a test flange, an inflation flange, a base plate, a plurality of bolts and nuts; the top cover plate, the test flange, the inflatable flange and the base plate are sequentially arranged from top to bottom.
Specifically, please refer to fig. 2, which is a schematic structural diagram of a top cover plate according to an embodiment of the present invention, the top cover plate is provided with a plurality of first through holes penetrating through upper and lower surfaces thereof, and the plurality of first through holes are uniformly distributed along a circumferential direction of the top cover plate.
Specifically, please refer to fig. 3, which is a schematic structural diagram of a test flange provided in an embodiment of the present invention, wherein second through holes, which penetrate through the upper and lower surfaces and are the same in number as the first through holes, are formed in the test flange; the positions of the second through holes correspond to the positions of the first through holes one by one, and the inner diameters of the second through holes are the same as those of the first through holes; as shown in fig. 2, other through holes (as indicated by dashed circles in the figure) formed in the test flange are used for leak detection or fixation, and the function is the same as that in the prior art. And the upper surface of the test flange is provided with a mounting groove for mounting the tested true sealing ring along the circumferential direction of the test flange.
Specifically, please refer to fig. 4, which is a schematic structural diagram of an inflatable flange according to an embodiment of the present invention, the inflatable flange is provided with third through holes penetrating through upper and lower surfaces thereof, and the number of the third through holes is the same as that of the second through holes; the positions of the third through holes correspond to the positions of the second through holes one by one, and the inner diameter of the third through holes is the same as that of the second through holes; and an inflation hole is formed in the side face of the inflation flange along the direction perpendicular to the third through hole.
Specifically, please refer to fig. 5, which is a schematic structural diagram of a base plate according to an embodiment of the present invention, wherein the base plate is provided with fourth through holes penetrating through upper and lower surfaces thereof and having the same number as the third through holes; the positions of the plurality of fourth through holes and the positions of the plurality of third through holes are in one-to-one correspondence, and the inner diameter of each fourth through hole is the same as that of each third through hole.
The number of the bolts and the number of the nuts (not shown in the figure) are the same as that of the first through holes, and each screw rod of each bolt sequentially penetrates through the corresponding first through hole, the second through hole, the third through hole and the fourth through hole, is in threaded connection with the first through hole, the second through hole, the third through hole and the fourth through hole, and is fixed through the corresponding nuts.
The detection module (not shown) comprises a sulfur hexafluoride gas leak detector for detecting the gas leakage rate of the true seal ring to be detected.
The embodiment of the utility model provides an aging testing system of true type sealing washer, through constructing rational in infrastructure module of being surveyed, wherein the module of being surveyed has adopted the lamina tecti of overlapping placing, the test flange, aerify flange and bed plate, it carries out structural fixing with the nut to assist the bolt of a plurality of specific quantity, make in the measurement process, fill into rated pressure's sulfur hexafluoride gas through the charging, utilize the cover-clasping method and the gaseous leak detector of sulfur hexafluoride to detect the true type sealing washer of being surveyed the module, whole test system has accurately simulated the operating condition of true type sealing washer under the actual operating mode condition, be favorable to accurately detecting out the performance change data of being surveyed true type sealing washer, and then the analysis obtains the sealing performance of being surveyed true type sealing washer under the multifactor condition. The whole test system is reasonable in structure arrangement, and the test process is safe, convenient and reliable.
It should be noted that, the embodiment of the present invention provides an aging test system for true sealing ring, which comprises the following specific steps: assembling all parts of a module to be tested one by one, vacuumizing, filling sulfur hexafluoride gas with rated pressure (the pressure value is adjusted according to the actual working condition, and can be preferably 0.1MPa, 0.4MPa and 0.7MPa), detecting and calculating the gas leakage rate of the true sealing ring to be tested by adopting a cover-buckling method in the prior art, and specifically determining the initial gas leakage rate according to the following formula:
wherein Δ C is the increase in the concentration of the leaking gas from the start of the experiment to the end of the experiment; Δ t is the time of measurement; vmIs the volume of the enclosure; v1Is the volume of the sample; p is the absolute atmospheric pressure and is 0.1 MPa.
Preferably, in the above embodiment, the number of the first through holes is 6. Of course, the number of the through holes can be adjusted according to actual working conditions.
Preferably, in the above embodiment, a sealing cover (not shown) is disposed at the inflation hole to improve the sealing performance of the inflation hole and ensure the accuracy of the test data.
Preferably, in the above embodiment, an air inlet valve is provided at the inflation hole.
Preferably, in the above embodiment, the air intake valve is a normally closed spring type air intake valve.
Preferably, in the above embodiment, the detection module further includes a temperature and humidity circulating salt fog tank, and the temperature and humidity circulating salt fog tank is configured to provide different environmental parameters, so that the sulfur hexafluoride gas leak detector detects the gas leakage rate of the corresponding true seal ring to be detected under different environmental parameters.
It should be noted that, when the cover-buckling method is used for detection, the adopted sealing cover is a metal cover or a plastic film which is larger than the tank body to be detected, so as to better cover the whole module to be detected to collect the leaked gas. In the test process, preferably, after the tested module is inflated to the rated pressure of 6h, the cover is buckled for 24 h; meanwhile, the sensitivity of the sulfur hexafluoride gas leak detector is preferably not lower than 10-8The leak detector of (2) to improve the accuracy of data acquisition; the temperature and humidity circulating salt fog box is used for providing various aging factors so as to explore the influence of the aging factors such as salt fog and oxygen on the aging degree of the true seal ring to be detected in the operation process, and preferably, the temperature value of the temperature and humidity circulating salt fog box is 50 ℃, 80 ℃ and 120 ℃; humidity values of 10%, 50% and 98%; the mass percentage concentration of the salt solution is (5 +/-1)%; the test time of the whole aging test system is preferably 48h, 96h and 192h, so that the aging degree of the tested true sealing ring under different environmental factor conditions can be obtained.
The embodiment of the utility model provides an aging testing system of true type sealing washer, through constructing rational in infrastructure module of being surveyed, wherein the module of being surveyed has adopted the lamina tecti of overlapping placing, the test flange, aerify flange and bed plate, it carries out structural fixing with the nut to assist the bolt of a plurality of specific quantity, make in measurement process, through filling into rated pressure's sulfur hexafluoride gas, utilize the cover-clasping method and the gaseous leak detector of sulfur hexafluoride to detect the true type sealing washer of being surveyed the module, whole test system has accurately simulated the operating condition of true type sealing washer under the actual operating mode condition, be favorable to accurately detecting out the performance change data of being surveyed the true type sealing washer, and then the analysis obtains the sealing performance of being surveyed the true type sealing washer under the multifactor's condition. The whole test system is reasonable in structure arrangement, and the test process is safe, convenient and reliable.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An aging test system of a true sealing ring is characterized by comprising a tested module and a detection module;
the tested module comprises a top cover plate, a test flange, an inflatable flange, a base plate, a plurality of bolts and nuts; the top cover plate, the test flange, the inflatable flange and the base plate are sequentially arranged from top to bottom;
the top cover plate is provided with a plurality of first through holes penetrating through the upper surface and the lower surface of the top cover plate, and the first through holes are uniformly distributed along the circumferential direction of the top cover plate;
the test flange is provided with second through holes which penetrate through the upper surface and the lower surface of the test flange and are the same as the first through holes in number; the positions of the second through holes correspond to the positions of the first through holes one by one, and the inner diameters of the second through holes are the same as those of the first through holes;
an installation groove for installing a true seal ring to be tested is formed in the upper surface of the test flange along the circumferential direction of the test flange;
third through holes which penetrate through the upper surface and the lower surface of the inflatable flange and are the same as the second through holes in number are formed in the inflatable flange; the positions of the third through holes correspond to the positions of the second through holes one by one, and the inner diameter of the third through holes is the same as that of the second through holes;
an inflation hole is formed in the side face of the inflation flange along the direction perpendicular to the third through hole;
fourth through holes which penetrate through the upper surface and the lower surface of the base plate and are the same as the third through holes in number are formed in the base plate; the positions of the plurality of fourth through holes correspond to the positions of the plurality of third through holes one by one, and the inner diameter of each fourth through hole is the same as that of each third through hole;
the number of the bolts and the nuts is the same as that of the first through holes, and the screw rod of each bolt sequentially penetrates through the corresponding first through hole, the second through hole, the third through hole and the fourth through hole, is in threaded connection with the first through hole, the second through hole, the third through hole and the fourth through hole, and is fixed through the corresponding nuts;
the detection module comprises a sulfur hexafluoride gas leak detector for detecting the gas leakage rate of the tested true sealing ring.
2. The system for testing the aging of a true seal ring according to claim 1, wherein the number of the first through holes is 6.
3. The system for testing the aging of a true seal ring according to claim 1, wherein a sealing cap is provided at the inflation hole.
4. The system for testing the degradation of a true seal ring according to claim 1, wherein an air inlet valve is provided at the air inlet.
5. The system for testing the aging of a true seal ring according to claim 4, wherein the air inlet valve is a normally closed spring type air inlet valve.
6. The aging test system for the genuine sealing ring according to claim 1, wherein the detection module further comprises a temperature and humidity circulating salt fog tank, and the temperature and humidity circulating salt fog tank is used for providing different environmental parameters, so that the sulfur hexafluoride gas leak detector detects the gas leakage rate of the corresponding tested genuine sealing ring under different environmental parameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277513.8U CN211401672U (en) | 2019-12-16 | 2019-12-16 | Aging test system of true sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277513.8U CN211401672U (en) | 2019-12-16 | 2019-12-16 | Aging test system of true sealing ring |
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| Publication Number | Publication Date |
|---|---|
| CN211401672U true CN211401672U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922277513.8U Active CN211401672U (en) | 2019-12-16 | 2019-12-16 | Aging test system of true sealing ring |
Country Status (1)
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|---|---|
| CN (1) | CN211401672U (en) |
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- 2019-12-16 CN CN201922277513.8U patent/CN211401672U/en active Active
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