CN114778370A - Device and method for improving equivalent ash density detection capability of insulator - Google Patents
Device and method for improving equivalent ash density detection capability of insulator Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 239000012212 insulator Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000005303 weighing Methods 0.000 claims description 60
- 238000005192 partition Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 238000005202 decontamination Methods 0.000 claims description 3
- 230000003588 decontaminative effect Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000004744 fabric Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 238000005119 centrifugation Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000012031 short term test Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 18
- 101150038956 cup-4 gene Proteins 0.000 description 10
- 238000001914 filtration Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000105 evaporative light scattering detection Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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Abstract
The invention provides a device and a method for improving equivalent ash density detection capability of an insulator, and belongs to the technical field of field pollution level detection of a power system. The utility model provides a promote device of insulator equivalence ash density testing ability, can filter by the automation to being surveyed the liquid, realizes the purpose of solid particle and fluid separation, and the short work efficiency height of filter time can solve a large amount of detection problems of electric power system. The utility model provides a promote insulator equivalence ash density detection ability method, it can obtain to be greater than gravity only to need short time under the centrifugal force effect based on different object molecules has different volume and density, obtain the effect of quick settlement, funnel type centrifugation cup pours into the foul solution that awaits measuring, centrifugal force when centrifuge provides the rotation is greater than gravity far away, it is in the inner bag that liquid leads to the screen cloth to appear in the effect solution of centrifugal force to be measured foul solution, the insoluble is kept apart to deposit and is adsorbed on the inside quantitative filter paper of screen cloth, short-term test equivalence attaches the ash density in the realization several minutes.
Description
Technical Field
The invention belongs to the technical field of electric power system field pollution level detection, and particularly relates to a device and a method for improving insulator equivalent ash density detection capability.
Background
The basis of the pollution external insulation design of lines and substation equipment with a power grid operating outdoors for a long time is the classification of pollution areas, and the first part of the selection and use guide rule of high-voltage insulators under the pollution condition of the national antifouling standard and the international electrotechnical commission IEC60815 is as follows: definition, information and general principles, aiming at the pollution degree adopted by the pollution, quantitative characterization is carried out, quantitative parameters are equivalent salt attached density (ESDD) and equivalent ash attached density (NSDD), wherein the equivalent ash attached density refers to insoluble residues on the surface of an insulator and generally comes from two pollutants of fly ash and dust fall in the atmospheric environment, the IEC standard and the domestic standard for measuring the insoluble residues on the surface are collected by manual cleaning, the polluted water after the equivalent salt attached density is measured is filtered and dried by a funnel, and filter paper (residues) containing the pollution is dried and weighed, the method is a conventional dead weight filtering and separating method and is widely applied to chemical analysis and environmental monitoring, the funnel filtering takes filter paper as a medium, and under the action of gravity, fluid passes through a pore channel of the filter paper to enable solid particles to be intercepted, so that the purpose of separating the solid particles from the fluid is realized, the funnel filtering method is widely applied, but the funnel filtering method has the defects that the filtering time is long, one sample can be completed within hours, and the low working efficiency cannot meet the problem of large-scale detection of a power system.
The patent application publication numbers CN112386983A, CN209764826U and the like adopt an optical detection mode, and because the sizes and the shapes of insoluble pollutants related to the detection liquid are different, the absorption degree and the light transmission degree of the insoluble pollutants to light are different, the detection accuracy is influenced by the different stability of detection light sources, and meanwhile, the characteristic spectral line intensity of the pollutants which are different in pollution source and need to be corrected is calibrated with the correlation of equivalent ash density and salt density, so that the detection accuracy and the measurement convenience are poor for the equivalent ash density.
Disclosure of Invention
The invention provides a device and a method for improving equivalent ash density detection capability of an insulator, and further improves pollution level detection efficiency of an anti-pollution flashover field of a power system.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an insulator equivalent ash density detection device comprises a device body, and an inner container and a centrifugal motor which are arranged in the device body, wherein the interior of the device body is divided into an upper part, a middle part and a lower part by a partition plate, the upper part is provided with the inner container, the middle part is provided with the centrifugal motor, and the lower part is provided with a weighing assembly; a funnel-shaped centrifugal cup is arranged in the inner container, an outer gear shaft is arranged at the bottom of the funnel-shaped centrifugal cup, an inner gear coupling matched with the outer gear shaft is arranged at the top of a rotating driving shaft of the centrifugal motor, and the outer gear shaft is embedded into the inner gear coupling and is in meshed connection with the inner gear coupling; the top of the funnel-shaped centrifugal cup is provided with an annular slide rail, the inner container is in close contact with the annular slide rail, and a plurality of balls are arranged in the annular slide rail.
The weighing assembly comprises an electronic balance, a liner weighing bracket and a funnel-type centrifugal cup weighing bracket; the funnel-type centrifugal cup weighing support is used for weighing the funnel-type centrifugal cup on the tray of the electronic balance.
Furthermore, the annular slide rail and the funnel-shaped centrifugal cup are integrally processed.
Furthermore, a plurality of sealing bearings are installed at the top of a rotary driving shaft of the centrifugal motor, and the sealing bearings are in interference fit with the top of the rotary driving shaft and the internal tooth coupler.
Furthermore, the bottom of the inner container is provided with a plurality of positioning pins, positioning holes are formed in the corresponding positions of the partition plates, and the inner container is positioned after the positioning pins are inserted into the positioning holes.
Furthermore, a raised sleeve is arranged in the center of the partition plate, a rotating driving shaft of the centrifugal motor penetrates through the sleeve to be connected with the funnel-shaped centrifugal cup, and a sealing gasket is arranged between the bottom of the funnel-shaped centrifugal cup and the sleeve.
Furthermore, the upper end of the device body is provided with a top cover, and a plurality of locking mechanisms are arranged between the two ends of the top cover and the device body. The locking mechanism comprises a saddle-shaped upper pressing plate, a saddle-shaped lower pressing plate and a locking bolt; the device is characterized in that saddle-shaped upper pressing plates are arranged at two ends of the top cover, saddle-shaped lower pressing plates are arranged at corresponding positions of the device body, and the upper pressing plates and the lower pressing plates are fixed through locking bolts after being aligned.
Furthermore, the liner weighing bracket is of a frame structure, and two support columns penetrate through the partition plate and are correspondingly and respectively placed into the positioning holes; the funnel type centrifugal cup weighing support is of a frame structure, and two supporting columns penetrate through the center of the partition plate and are provided with protruding sleeves which are parallel and level to the sleeves.
Furthermore, a first folding lifting device is arranged on a pillar of the liner weighing bracket; the first folding lifting device adjusts the position of the cross folding lifting frame through a threaded rod in a transmission motor rotating slide way.
In the stretching state, the two support columns are connected with the positioning pins to lift the liner, and the liner and the separation liquid contained in the liner are placed on a tray of the electronic balance for weighing; in a contraction state, the two support columns are separated from the positioning pins, and the inner container weighing support is separated from a tray of the electronic balance.
Furthermore, a second folding lifting mechanism and a fixing plate for mounting the second folding lifting mechanism are arranged on the funnel-type centrifugal cup weighing support; and the second folding lifting mechanism adjusts the position of the crossed folding lifting frame through a threaded rod in a transmission motor rotating slide way.
In an extending state, the two supporting columns are connected with the bottom of the funnel-shaped centrifugal cup, the funnel-shaped centrifugal cup is lifted, and the funnel-shaped centrifugal cup and a solid substance contained in the funnel-shaped centrifugal cup are placed on a tray of an electronic balance for weighing; in a contracted state, the two support columns are separated from the funnel-shaped centrifugal cup, and the funnel-shaped centrifugal cup weighing support is separated from the tray of the electronic balance.
A method for improving equivalent ash density detection capability of an insulator comprises the following steps:
s1, recording net weight W of the decontamination solutiono；
S2, folding the dried quantitative filter paper in a funnel-shaped centrifuge cup in a dry environment, weighing the mass WL of the filter paper and the funnel-shaped centrifuge cup and the mass WN of the inner container, and recording;
s3, assembling the funnel-shaped centrifugal cup with the quantitative filter paper in the inner container, locking the top cover, and integrally debugging the detection device;
s4, injecting the dirt-detecting liquid into a funnel-shaped centrifugal cup, and starting a power supply of the centrifugal machine to detect dirt-liquid and solid dirt WGThe centrifugal separation is carried out, and the setting time of 1 centrifugal separation is about 3-5 minutes, and the speed of the centrifugal machine is 1800-;
s5, weighing the total weight W of the separated liquid-containing linerΝ+Y1Obtaining the weight of the separated liquid, W, by a peeling methodY＝WΝ+Y1-WΝAnd recording;
s6, weighing the total weight W of the funnel-type centrifugal cup for separating solid dirtL+CObtaining the weight of the separated liquid, W, by a peeling methodC＝WL+C-WLSolid dirt WCWeighing and recording respectively;
s7, utilizing WC1＝Wo-WYThe net weight of the solid dirt is calculated,
formula calculation of WCAnd WC1Average value;
s8. pair WCAnd WC1Make a comparison in accordance with
Calculating the relative deviation:
when d isrWhen the content is not more than 5 percent, the solid matter of the polluted liquid is considered to be completely separated according to a formula
Calculating equivalent grey density (NSDD) of the tested insulator;
when d isrWhen the mass difference of the solid dirt in the funnel-type centrifugal cup and the solid dirt which is separated is more than 5 percent, the solid dirt is placed in the separator again for separation again, the mass difference of the solid dirt measured in the previous and the next two times of separation is not more than 5mg, the solid dirt is regarded as constant weight, the net weight W of the solid dirt is measured, and the net weight W of the solid dirt is measured according to a formula
And calculating equivalent grey density (NSDD) of the tested insulator.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a device for improving the equivalent ash density detection capability of an insulator, which can automatically filter a detected liquid, realize the purpose of separating solid particles from the liquid, has short filtering time and high working efficiency, and can solve the problem of mass detection of an electric power system. The external tooth shaft at the bottom of the funnel-shaped centrifugal cup is embedded into the internal tooth coupling, the rotating shaft of the centrifugal motor is connected into a whole, meanwhile, the top of the funnel-shaped centrifugal cup is connected with the annular slide rail into a whole, the annular slide rail is tightly matched with the inner container, and when the motor drives the funnel-shaped centrifugal cup to rotate through the rotating shaft, high-precision dynamic balance is realized, so that the noise of the whole machine is reduced, the structure is simple, and the service life of the machine is prolonged. The weighing component can directly weigh the contents in the inner container and the funnel-shaped centrifuge cup by adopting a peeling method, and is simple and convenient.
The invention provides a method for improving equivalent ash density detection capability of an insulator, wherein based on the fact that different object molecules have different volumes and densities, the equivalent ash density detection capability can be obtained by more than gravity in a short time under the action of centrifugal force, the effect of rapid sedimentation is obtained, a funnel-type centrifugal cup is filled with dirty liquid to be detected, when the centrifugal force provided by a centrifugal machine is far more than the gravity, the liquid of the dirty liquid to be detected in the action of the centrifugal force is separated out into an inner container through a screen, insoluble substances are isolated, precipitated and adsorbed on quantitative filter paper in the screen, and the equivalent ash density can be rapidly detected within a few minutes.
Drawings
FIG. 1 is a schematic view of a detecting device;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a front view of the centrifuge structure;
FIG. 4 is a top view of a centrifuge configuration;
FIG. 5 is a front view of the container structure of the inner container;
FIG. 6 is a top view of the container structure of the inner container;
FIG. 7 is a front view of a funnel-type centrifuge cup configuration;
FIG. 8 is a top view of the funnel-type centrifugal cup structure
FIG. 9 is a front view of the internal gear coupling structure;
FIG. 10 is a top plan view of the internal gear coupling arrangement;
FIG. 11 is a front view of the top cover structure;
FIG. 12 is a top view of the cap structure;
FIG. 13 is a front view of the weighing assembly construction;
FIG. 14 is an enlarged view of portion B of FIG. 13;
FIG. 15 is a flow chart of the method for detecting equivalent ash density of insulator by centrifugal separation;
in the figure, the device comprises a device body 1, a top cover 2, a device body 3, an inner container 4, a funnel-shaped centrifugal cup 5, a centrifugal motor 6, a partition plate 7, an internal tooth coupler 8, a sealing bearing 9, an annular slide rail 10, a tightening bolt 21, a saddle-shaped lower pressing plate 31, a positioning pin 32, a sealing gasket 33, a sleeve 41, an external gear shaft 42, a screen 61, an injection hole 62, a handle 63, a saddle-shaped upper pressing plate 91, a ball, a 131 tray 132, a first folding lifting device 133 and a second folding lifting device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1 to 14, the insulator equivalent ash density detection device comprises a top cover 1, a device body 2, an inner container 3, a funnel-shaped centrifugal cup 4, a centrifugal motor 5, a partition plate 6, an internal tooth coupling 7, a sealing bearing 8, an annular slide rail 9 and a tightening bolt 10. The interior of the device body 2 is divided into an upper part, a middle part and a lower part by a partition plate 6, and a raised sleeve 33 is arranged at the center of the partition plate 6 so as to facilitate the penetration of a rotary driving shaft of the centrifugal motor 5.
The centrifugal motor 5 is installed on the middle bottom plate of the device body 2 and used for generating centrifugal force. The rotary driving shaft of the centrifugal motor 5 penetrates through a sleeve 33 protruding in the center of the partition plate, a sealing bearing 8 is installed, and the sealing bearing 8 is in interference fit with the top of the rotary driving shaft and the internal gear coupling 7.
The upper portion of device body 2 holds dress centrifuge's inner bag 3, is equipped with funnel type centrifugal cup 4 in the inner bag 3, and the bottom of funnel type centrifugal cup 4 is equipped with outer tooth axle 41, and centrifugal motor 5's rotation drive shaft top is equipped with the internal tooth shaft coupling 7 with external tooth axle 41 looks adaptation, and outer tooth axle 41 imbeds in the internal tooth shaft coupling 7, is connected with the meshing of internal tooth shaft coupling 7, and funnel type centrifugal cup 4 realizes rotatoryly through centrifugal motor 5's rotation to acquire centrifugal force.
The lower part of the device body 2 is provided with a weighing component, and the weighing component comprises an electronic balance 13, an inner container weighing support 11 and a funnel-shaped centrifugal cup weighing support 12; the liner weighing support 11 places the liner on the tray 131 of the electronic balance 13 for weighing, and the funnel-shaped centrifugal cup weighing support 12 places the funnel-shaped centrifugal cup on the tray 141 of the electronic balance for weighing.
As shown in fig. 7-8, the top of the funnel-shaped centrifugal cup 4 is provided with an annular slide rail 9 connected with the top of the funnel-shaped centrifugal cup, a plurality of balls 91 are arranged in the annular slide rail 9, and the inner container 3 is in close contact with the annular slide rail 9, so that the stability of the funnel-shaped centrifugal cup 4 during rotation is improved.
As shown in fig. 5-6, two positioning pins 31 are provided at the bottom of the inner container 3, positioning holes are provided at corresponding positions of the partition plate 6, and the inner container 3 is positioned by inserting the positioning pins 31 into the positioning holes. The top end of the central bulge of the inner container 3 adopts a sealing gasket 32 to prevent liquid in the inner container 3 from flowing into the device body 2, the inner container 3 is used for collecting separated liquid, and the sealing gasket 32 is made of rubber.
The upper end of the device body 2 is provided with a top cover 1, and a plurality of locking mechanisms are arranged between the two ends of the top cover 1 and the device body 2. It should be noted that, locking mechanism includes saddle type top board 63, saddle type holding down plate 21 and locking bolt 10, and the both ends of top cap 1 are equipped with saddle type top board 63, and the corresponding position of device body 2 is equipped with saddle type holding down plate 21, aligns the back with top and bottom plate and fixes and seal through locking bolt 10, and the upper end of top cap is equipped with filling hole and handle, conveniently is surveyed the injection of liquid. The lower part of the funnel-type centrifugal cup 4 is in a net shape, liquid in the injected measured dirty liquid can be quickly separated out into the liner through the screen 42 under the action of centrifugal force, insoluble substances are isolated and precipitated and adsorbed on quantitative filter paper in the screen 42, and the equivalent ash attachment density can be quickly detected.
As shown in fig. 13-14, the liner weighing bracket 11 is a frame structure, and two support posts thereof penetrate through the partition 6 and are correspondingly and respectively placed in the positioning holes. The funnel-type centrifugal cup weighing support 12 is also of a frame structure, and two support columns at the upper end of the funnel-type centrifugal cup weighing support penetrate through the center of the partition plate 6 and are provided with raised sleeves 33 which are flush with the sleeves 33.
It should be noted that a first folding lifting device 132 is provided on one pillar of the liner weighing bracket 11. The first folding lifting device 132 adjusts the position of the cross folding lifting frame through a threaded rod in a transmission motor rotating slide way. In the stretching state, the two pillars are connected with the positioning pin 31, the inner container is lifted, and the inner container and the separation liquid contained in the inner container are placed on a tray 131 of the electronic balance 13 for weighing; in the contracted state, the two support posts are disengaged from the positioning pins 31, and the liner weighing support 11 is disengaged from the tray 131 of the electronic balance 13.
It should be noted that the funnel-type centrifugal cup weighing support 12 is provided with a second folding lifting mechanism 133 and a fixing plate for mounting the second folding lifting mechanism 133. The second folding lifting mechanism 133 adjusts the position of the cross folding lifting frame through a threaded rod in a transmission motor rotating slide way. In the extending state, the two support columns are connected with the bottom of the funnel-shaped centrifugal cup 4, the funnel-shaped centrifugal cup 4 is lifted, and the funnel-shaped centrifugal cup 4 and the solid substance contained in the funnel-shaped centrifugal cup are placed on a tray 131 of the electronic balance 13 for weighing; in the contracted state, the two supports are disengaged from the funnel-shaped centrifugal cup, and the funnel-shaped centrifugal cup weighing support 12 is disengaged from the tray 131 of the electronic balance 13.
As shown in fig. 15, a method for improving equivalent ash density detection capability of an insulator includes the following steps:
s1, recording net weight W of the decontamination solutiono。
S2, folding the dried quantitative filter paper in a funnel-shaped centrifuge cup in a dry environment, weighing the mass WL of the filter paper and the funnel-shaped centrifuge cup and the mass WN of the inner container, and recording.
S3, assembling the funnel-shaped centrifugal cup with the quantitative filter paper in the inner container, locking the top cover, and integrally debugging the detection device;
s4, injecting the dirt-detecting liquid into a funnel-shaped centrifugal cup, and starting a power supply of the centrifugal machine to detect dirt-liquid and solid dirt WGThe centrifugation is carried out, typically 1 centrifugation set for about 3-5 minutes, at a centrifuge speed of 1800-.
S5, weighing the total weight W of the separated liquid-containing linerΝ+Y1Obtaining the weight of the separated liquid, W, by a peeling methodY＝WΝ+Y1-WΝAnd recorded.
S6, weighing the total weight W of the funnel-shaped centrifugal cup for separating solid dirtL+CObtaining the weight of the separated liquid by a peeling method, WC＝WL+C-WLSolid dirt WCWeighed separately and recorded.
S7, utilizing WC1＝Wo-WYThe net weight of the solid dirt is calculated,
formula calculation of WCAnd WC1Average value.
S8. pair WCAnd WC1Make a comparison in accordance with
The relative deviation is calculated.
When d isrWhen the concentration is not more than 5%, the solid matter of the polluted liquid is considered to be completely separated according to a formula
And calculating the equivalent grey density (NSDD) of the tested insulator.
When d isrWhen the mass difference of the solid dirt measured by the previous and the later separation is not more than 5mg, the solid dirt is regarded as constant weight, and the net solid dirt is measuredHeavy W according to the formula
And calculating equivalent grey density (NSDD) of the tested insulator.
Have different volumes and density to obtain to be greater than gravity only for short time under the centrifugal force effect based on different object molecules, obtain the effect of quick settlement, funnel type centrifuge cup pours into the foul solution that awaits measuring into, provides rotatory centrifugal force to be greater than gravity far away when centrifuge, is surveyed the foul solution and is appeared out the inner bag through the screen cloth in the effect solution of centrifugal force, and insoluble substance is kept apart to deposit and is adsorbed on the inside quantitative filter paper of screen cloth, realizes the short-term test equivalence and attaches grey density.
The patent provides a method and a device for improving equivalent ash density detection capability of an insulator, and a plurality of methods and ways for specifically realizing the technical scheme are provided, the method is only a preferred simple implementation way of the patent, and for a person having ordinary skill in the art, on the premise of not departing from the principle of the invention, a plurality of improvements and embellishments are made, for example, a gravity sensor is added to directly detect the mass of dirt liquid, solid dirt and the like to realize automatic measurement, the improvements and embellishments are also regarded as the protection range of the patent, and all components which are not clear in the embodiment can be realized by the prior art.
Claims (10)
1. An insulator equivalent ash density detection device comprises a device body (2), and an inner container (3) and a centrifugal motor (5) which are arranged in the body (2), and is characterized in that the interior of the device body (2) is divided into an upper part, a middle part and a lower part by a partition plate (6), the inner container (3) is arranged at the upper part, the centrifugal motor (5) is arranged at the middle part, and a weighing component is arranged at the lower part; a funnel-shaped centrifugal cup (4) is arranged in the inner container (3), an outer gear shaft (41) is arranged at the bottom of the funnel-shaped centrifugal cup (4), an inner gear coupling (7) matched with the outer gear shaft (41) is arranged at the top of a rotating driving shaft of the centrifugal motor (5), and the outer gear shaft (41) is embedded into the inner gear coupling (7) and is meshed with the inner gear coupling (7); the top of the funnel-shaped centrifugal cup (4) is provided with an annular slide rail (9), the inner container (3) is tightly contacted with the annular slide rail (9), and a plurality of balls (91) are arranged in the annular slide rail (9);
the weighing assembly comprises an electronic balance (13), a liner weighing bracket (11) and a funnel type centrifugal cup weighing bracket (12); the inner container weighing support (11) is used for placing the inner container on a tray (131) of an electronic balance (13) for weighing, and the funnel-type centrifugal cup weighing support (12) is used for placing the funnel-type centrifugal cup on the tray (131) of the electronic balance for weighing.
2. The insulator equivalent ash density detection device according to claim 1, wherein the annular slide rail (9) and the funnel-shaped centrifugal cup (4) are integrally processed.
3. The insulator equivalent ash density detection device according to claim 1, wherein a plurality of sealing bearings (8) are installed at the top of a rotating driving shaft of the centrifugal motor (5), and the sealing bearings (8) are in interference fit with the top of the rotating driving shaft and the internal tooth coupling (7).
4. The insulator equivalent ash density detection device according to claim 1, wherein a plurality of positioning pins (31) are arranged at the bottom of the liner (3), positioning holes are arranged at corresponding positions of the partition plate (6), and the liner (3) is positioned by inserting the positioning pins (31) into the positioning holes.
5. The insulator equivalent ash density detection device according to claim 4, wherein a raised sleeve (33) is arranged at the center of the partition plate (6), a rotation driving shaft of the centrifugal motor (5) penetrates through the sleeve (33) to be connected with the funnel-shaped centrifugal cup (4), and a sealing gasket (32) is arranged between the bottom of the funnel-shaped centrifugal cup (4) and the sleeve (33).
6. The insulator equivalent ash density detection device according to claim 5, wherein a top cover (1) is arranged at the upper end of the device body (2), and a plurality of locking mechanisms are arranged between the two ends of the top cover (1) and the device body (2);
the locking mechanism comprises a saddle-shaped upper pressing plate (63), a saddle-shaped lower pressing plate (21) and a locking bolt (10); saddle-shaped upper pressing plates (63) are arranged at two ends of the top cover (1), saddle-shaped lower pressing plates (21) are arranged at corresponding positions of the device body (2), and the upper pressing plates and the lower pressing plates are aligned and then fixed through locking bolts (10).
7. The insulator equivalent ash density detection device according to claim 6, wherein the liner weighing bracket (11) is a frame structure, and two support columns penetrate through the partition plate (6) and are correspondingly and respectively placed in the positioning holes; the funnel type centrifugal cup weighing support (12) is of a frame structure, and two supporting columns penetrate through the center of the partition plate (6) and are provided with protruding sleeves (33) which are flush with the sleeves (33).
8. The insulator equivalent ash density detection device according to claim 7, wherein a first folding lifting device (132) is arranged on a pillar of the liner weighing bracket (11); the first folding lifting device (132) adjusts the position of the cross folding lifting frame through a threaded rod in a transmission motor rotating slide way;
in the stretching state, the two pillars are connected with the positioning pin (31), the liner is lifted, and the liner and the separation liquid contained in the liner are placed on a tray (131) of an electronic balance (13) for weighing; in a contraction state, the two support columns are separated from the positioning pins (31), and the liner weighing support (11) is separated from the tray (131) of the electronic balance (13).
9. The insulator equivalent ash density detection device according to claim 7, wherein the funnel-shaped centrifugal cup weighing support (12) is provided with a second folding lifting mechanism (133) and a fixing plate for mounting the second folding lifting mechanism (133); the second folding lifting mechanism (133) adjusts the position of the cross folding lifting frame through a threaded rod in a transmission motor rotating slide way;
in an extending state, the two supports are connected with the bottom of the funnel-shaped centrifugal cup (4), the funnel-shaped centrifugal cup (4) is lifted, and the funnel-shaped centrifugal cup (4) and solid substances contained in the funnel-shaped centrifugal cup are placed on a tray (131) of an electronic balance (13) for weighing; in a contracted state, the two supports are separated from the funnel-shaped centrifugal cup, and the funnel-shaped centrifugal cup weighing support (12) is separated from a tray (131) of the electronic balance (13).
10. A method for improving the equivalent ash density detection capability of an insulator, which is based on the device for improving the equivalent ash density detection capability of the insulator as claimed in claims 1-9, and is characterized by comprising the following steps:
s1, recording net weight W of the decontamination solutiono；
S2, folding the dried quantitative filter paper in a funnel-shaped centrifuge cup in a dry environment, weighing the mass WL of the filter paper and the funnel-shaped centrifuge cup and the mass WN of the inner container, and recording;
s3, assembling the funnel-shaped centrifugal cup with the quantitative filter paper in the inner container, locking the top cover, and integrally debugging the detection device;
s4, injecting the dirt-detecting liquid into a funnel-shaped centrifugal cup, and starting a power supply of the centrifugal machine to measure the dirt-detecting liquid and the solid dirt WGThe centrifugal separation is carried out, generally 1 time of centrifugal separation is set for about 3-5 minutes, and the speed of the centrifugal separator is 1800-3000 r/min;
s5, weighing the total weight W of the separated liquid-containing linerN+Y1Obtaining the weight of the separated liquid by a peeling method, WY＝WN+Y1-WNAnd recording;
s6, weighing the total weight W of the funnel-type centrifugal cup for separating solid dirtL+CObtaining the weight of the separated liquid by a peeling method, WC＝WL+C-WLSolid dirt WCWeighing respectively and recording;
s7, utilizing WC1＝Wo-WYThe net weight of the solid dirt is calculated,
formula calculates WCAnd WC1An average value;
s8. pair WCAnd WC1Make a comparison in accordance with
Calculating the relative deviation:
when d isrWhen the content is not more than 5 percent, the solid matter of the polluted liquid is considered to be completely separated according to a formula
Calculating equivalent grey density (NSDD) of the tested insulator;
when d isrWhen the mass difference of the solid dirt in the funnel-type centrifugal cup and the solid dirt which is separated is more than 5 percent, the solid dirt is placed in the separator again for separation again, the mass difference of the solid dirt measured in the previous and the next two times of separation is not more than 5mg, the solid dirt is regarded as constant weight, the net weight W of the solid dirt is measured, and the net weight W of the solid dirt is measured according to a formula
And calculating equivalent grey density (NSDD) of the tested insulator.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT254219B (en) * | 1963-06-10 | 1967-05-10 | Krauss Maffei Ag | Device for separating the solid from the liquid components of suspensions |
| DE1549267A1 (en) * | 1967-03-08 | 1970-06-25 | Anton Seelemann & Soehne F | Device for weight control of the volumetric dosing of a feeder, especially for concrete mixing plants |
| US6375829B1 (en) * | 2000-03-07 | 2002-04-23 | Nalco Chemical Company | Method and apparatus for measuring scaling capacity of calcium oxalate solutions using an electrochemically controlled pH change in the solution proximate to a piezoelectric microbalance |
| US20040076810A1 (en) * | 2002-10-17 | 2004-04-22 | Ucar Carbon Company Inc. | Composite high temperature insulator |
| EP1785717A1 (en) * | 2005-11-14 | 2007-05-16 | BTG Mütek GmbH | Device and method for determining organic and inorganic proportions in a sample |
| CN201293752Y (en) * | 2009-03-02 | 2009-08-19 | 南京卓实电气有限责任公司 | Rapid ash density measuring apparatus |
| JP2010143805A (en) * | 2008-12-19 | 2010-07-01 | Makoto Ichitsubo | Method and apparatus for manufacturing colored solidified body, and the colored solidified body |
| US20130050696A1 (en) * | 2010-05-07 | 2013-02-28 | MannKind Corporaation | Determining percent solids in suspension using raman spectroscopy |
| CN217845959U (en) * | 2022-03-30 | 2022-11-18 | 南京卓实电气有限责任公司 | Insulator equivalent ash density detection device |
-
2022
- 2022-03-30 CN CN202210327453.XA patent/CN114778370B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT254219B (en) * | 1963-06-10 | 1967-05-10 | Krauss Maffei Ag | Device for separating the solid from the liquid components of suspensions |
| DE1549267A1 (en) * | 1967-03-08 | 1970-06-25 | Anton Seelemann & Soehne F | Device for weight control of the volumetric dosing of a feeder, especially for concrete mixing plants |
| US6375829B1 (en) * | 2000-03-07 | 2002-04-23 | Nalco Chemical Company | Method and apparatus for measuring scaling capacity of calcium oxalate solutions using an electrochemically controlled pH change in the solution proximate to a piezoelectric microbalance |
| US20040076810A1 (en) * | 2002-10-17 | 2004-04-22 | Ucar Carbon Company Inc. | Composite high temperature insulator |
| EP1785717A1 (en) * | 2005-11-14 | 2007-05-16 | BTG Mütek GmbH | Device and method for determining organic and inorganic proportions in a sample |
| JP2010143805A (en) * | 2008-12-19 | 2010-07-01 | Makoto Ichitsubo | Method and apparatus for manufacturing colored solidified body, and the colored solidified body |
| CN201293752Y (en) * | 2009-03-02 | 2009-08-19 | 南京卓实电气有限责任公司 | Rapid ash density measuring apparatus |
| US20130050696A1 (en) * | 2010-05-07 | 2013-02-28 | MannKind Corporaation | Determining percent solids in suspension using raman spectroscopy |
| CN217845959U (en) * | 2022-03-30 | 2022-11-18 | 南京卓实电气有限责任公司 | Insulator equivalent ash density detection device |
Non-Patent Citations (3)
| Title |
|---|
| ZHIJIN ZHANG 等: "Study on natural contamination performance of typical types of insulators", 《IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION》, vol. 21, no. 4, 31 December 2014 (2014-12-31), pages 1901 - 1909, XP011557373, DOI: 10.1109/TDEI.2014.004343 * |
| 林海丹 等: "退役绝缘子芯棒粉末在电缆沟盖板中的应用", 《化工新型材料》, no. 4, 31 December 2019 (2019-12-31), pages 246 - 248 * |
| 董海燕: "高污秽度环境下腕臂复合绝缘子积污与电场特性研究", 《中国博士学位论文全文数据库工程科技Ⅱ辑》, no. 1, 15 January 2022 (2022-01-15), pages 033 - 8 * |
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