CN212410351U - Measuring device for permeability of material - Google Patents
Measuring device for permeability of material Download PDFInfo
- Publication number
- CN212410351U CN212410351U CN202021247293.0U CN202021247293U CN212410351U CN 212410351 U CN212410351 U CN 212410351U CN 202021247293 U CN202021247293 U CN 202021247293U CN 212410351 U CN212410351 U CN 212410351U
- Authority
- CN
- China
- Prior art keywords
- container
- opening
- permeability
- fluid
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000035699 permeability Effects 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000012153 distilled water Substances 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000002274 desiccant Substances 0.000 claims description 14
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 12
- 239000004519 grease Substances 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 abstract description 41
- 230000008859 change Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 10
- 229920002379 silicone rubber Polymers 0.000 description 10
- 239000011810 insulating material Substances 0.000 description 7
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The application relates to the technical field of measurement, in particular to a measuring device for material permeability, which comprises a first container and a second container; the bottom of the first container is provided with a first opening, and the top of the second container is provided with a second opening; the first container is stacked on the second container, and the first opening and the second opening are arranged in a manner of being separated by the sample; the first container and the second container are both connected with the sample through the sealing layer; the first container has a fluid disposed therein, and the second container has an identifier for identifying the fluid disposed therein. This application can come the permeability effect of aassessment fluid in the sample according to the weight change of identification thing, has the advantage that the device is simple, convenient operation, and when the fluid was distilled water, identification thing was the drier, can measure the water permeability of insulator sheath material through the weight change of drier, solved effectively and exist among the prior art and carry out the technical problem measured to the water permeability of different insulator sheath materials.
Description
Technical Field
The application relates to the technical field of measurement, in particular to a measuring device for permeability of a material.
Background
The insulator is an electric element which is applied to a power transmission line more frequently and mainly plays a role in mechanical support and electric insulation. The common silicon rubber composite insulator has good hydrophobicity, leakage tracking resistance and impact resistance. However, since the silicone rubber sheath has good water permeability, external moisture and water can easily enter the interface between the core rod and the sheath of the composite insulator through the sheath. The interaction of moisture, heat and electric field causes the aging of the composite insulator interface, the quality reduction of the interface, even the debonding of the interface and other phenomena. Moisture enters the interface debonding and air gap through the sheath, and on one hand, partial discharge can be caused, so that the composite insulator generates heat abnormally. On the other hand, the contact between moisture and the mandrel may cause hydrolysis of the epoxy resin in the mandrel, so that the mandrel performance is deteriorated. Therefore, the water permeability of the insulator sheath material is closely related to the safe and stable operation of the insulator.
In order to solve the problem of water permeability of the silicon rubber composite insulator, researchers have changed the material of the insulator sheath from silicon rubber to epoxy resin. The current research on moisture permeation through the insulator sheath mainly focuses on the water absorption of epoxy resin materials and silicon rubber materials and the adverse phenomena and reasons caused by moisture permeation through the insulator sheath. However, the water permeability of different insulator sheath materials is not quantitatively evaluated and compared, and a normative device and a method for measuring the water permeability of the insulating material do not exist.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide a device for measuring permeability of a material, which effectively solves the technical problem in the prior art that the permeability of different insulator sheath materials cannot be measured.
In order to achieve the purpose, the application provides the following technical scheme:
a material permeability measuring device comprises a first container and a second container;
the bottom of the first container is provided with a first opening, and the top of the second container is provided with a second opening;
the first container is stacked on the second container, and the first opening and the second opening are separated by a sample;
the first container and the second container are both connected with a sample through a sealing layer;
the first container has a fluid disposed therein, and the second container has an identifier disposed therein for identifying the fluid.
Preferably, in the above-described measuring device, the fluid is distilled water, and the identifier is a desiccant.
Preferably, in the above measuring device, the desiccant is specifically anhydrous calcium chloride.
Preferably, in the above-described measuring device, the sealing layer is specifically silicone grease.
Preferably, in the measuring device, a third container is further included, the third container is disposed in the second container, a top of the third container is provided with a third opening, and the identifier is located in the third container.
Preferably, in the above-described measuring apparatus, the third container is located at the very middle of the second container.
Preferably, in the above-described measuring device, the sealing layer is annular, and the sealing layer is circumferentially provided on an outer edge of the first opening and an outer edge of the second opening.
Preferably, in the above-described measuring apparatus, a diameter of the first container is equal to a diameter of the second container.
Preferably, in the above-mentioned measuring device, a vertical projection of the first container coincides with a vertical projection of the second container.
Preferably, in the above-mentioned measuring device, the first container is provided with a liquid inlet.
Compared with the prior art, the beneficial effects of this application are:
the sample is placed between the first opening of the first container and the second opening of the second container, the first container and the second container are connected with the sample in a sealing mode through the sealing layer, fluid in the first container located above can only enter the second container through the first opening, the pore in the sample and the second opening in sequence, whether the fluid in the first container enters the second container or not can be identified through the identification object in the second container, and the permeability effect of the fluid in the sample can be evaluated according to the weight change of the identification object. When this application applies to and measures the water permeability of insulator sheath material, the fluid is distilled water, and when the discernment thing was the drier, can measure the water permeability of different insulator sheath materials through the weight change of drier, solve effectively among the prior art and have the technical problem that can't measure the water permeability of different insulator sheath materials.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for measuring permeability of a material according to an embodiment of the present disclosure.
In the figure:
1 is a first container, 2 is a second container, 3 is a third container, 4 is a sample, 5 is a sealing layer, 6 is a fluid, and 7 is an identifier.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The insulator is an electric element which is applied to a power transmission line more frequently and mainly plays a role in mechanical support and electric insulation. The common silicon rubber composite insulator has good hydrophobicity, leakage tracking resistance and impact resistance. However, since the silicone rubber sheath has good water permeability, external moisture and water can easily enter the interface between the core rod and the sheath of the composite insulator through the sheath. The interaction of moisture, heat and electric field causes the aging of the composite insulator interface, the quality reduction of the interface, even the debonding of the interface and other phenomena. Moisture enters the interface debonding and air gap through the sheath, and on one hand, partial discharge can be caused, so that the composite insulator generates heat abnormally. On the other hand, the contact between moisture and the mandrel may cause hydrolysis of the epoxy resin in the mandrel, so that the mandrel performance is deteriorated. Therefore, the water permeability of the insulator sheath material is closely related to the safe and stable operation of the insulator.
In order to solve the problem of water permeability of the silicon rubber composite insulator, researchers have changed the material of the insulator sheath from silicon rubber to epoxy resin. The current research on moisture permeation through the insulator sheath mainly focuses on the water absorption of epoxy resin materials and silicon rubber materials and the adverse phenomena and reasons caused by moisture permeation through the insulator sheath. However, the water permeability of different insulator sheath materials is not quantitatively evaluated and compared, and a normative device and a method for measuring the water permeability of the insulating material do not exist. The embodiment provides a measuring device of material permeability, solves effectively to have among the prior art can't carry out the technical problem measured to the water permeability of different insulator sheath materials.
Referring to fig. 1, an embodiment of the present application provides a material permeability measuring apparatus, which includes a first container 1 and a second container 2; the bottom of the first container 1 is provided with a first opening, and the top of the second container 2 is provided with a second opening; the first container 1 is stacked on the second container 2, and the first opening and the second opening are separated by the sample 4; the first container 1 and the second container 2 are both connected with the sample 4 through a sealing layer 5; the first container 1 has a fluid 6 placed therein, and the second container 2 has an identifier 7 for identifying the fluid 6 placed therein.
This embodiment can be applied to the permeability of measuring different insulator sheath materials, also can be applied to the permeability or the oil permeability of other materials, can also be applied to the permeability of a certain fluid 6 in a certain material and measures, and this embodiment is no longer repeated.
The embodiment places the sample 4 between the first opening of the first container 1 and the second opening of the second container 2, and simultaneously the first container 1 and the second container 2 are both connected with the sample 4 in a sealing way through the sealing layer 5, the fluid 6 in the first container 1 above can only enter the second container 2 through the first opening, the pore space inside the sample 4 and the second opening in sequence, and whether the fluid 6 in the first container 1 enters the second container 2 can be identified through the identifier 7 in the second container 2, and the permeability effect of the fluid 6 in the sample 4 can be evaluated according to the weight change of the identifier 7, so that the advantages of simple device and convenient operation are achieved. In this embodiment, when the method is applied to measuring the water permeability of different insulator sheath materials, the fluid 6 is distilled water, and the identifier 7 is a drying agent, the water permeability of the different insulator sheath materials can be measured through the weight change of the drying agent, so that the technical problem that the water permeability of the different insulator sheath materials cannot be measured in the prior art is effectively solved.
Further, in this embodiment, when measuring the water permeability of different insulator sheath materials, the fluid 6 may be distilled water, the identifier 7 may be a desiccant (or water absorbent), when distilled water enters the second container 2 through the sample 4, the desiccant may absorb moisture entering the second container 2, and the water permeability of the insulator sheath material may be measured by the weight change of the desiccant and the second container 2.
More specifically, this embodiment may also be applied to measure the permeability of a certain fluid 6 in a certain material, for example, the fluid 6 is oil, and the permeability of the certain material may be detected, which is not described in detail in this embodiment.
Further, in this embodiment, the drying agent may be anhydrous calcium chloride, anhydrous copper sulfate or other drying agents, and anhydrous calcium chloride is preferred as the drying agent in this embodiment, and has advantages of mature production process and excellent hygroscopicity, and whether water is introduced into the second container 2 can be judged by whether the anhydrous calcium chloride is melted.
Further, in the present embodiment, when the water permeability of different insulator sheath materials is measured, the sealing layer 5 is specifically silicone grease, and the silicone grease has good water resistance. The silicone grease is used as the sealing layer 5 of the first container 1 and the sample 4, so that distilled water can be prevented from leaking from the edge of the first opening of the first container 1, and normal operation of water permeability measurement can be guaranteed; also by using silicone grease as the sealing layer 5 of the second container 2 and the sample 4, not only can the distilled water be prevented from leaking out from the edge of the second opening of the second container 2, but also the moisture in the air can be prevented from directly entering the second container 2 to disturb the measurement result of the water permeability.
More specifically, 7501 high vacuum silicone grease is preferred, which has the advantages of good chemical stability, strong material adaptability and good sealing effect, and the silicone grease is thick paste, which is convenient for the staff to rapidly seal the first container 1 and the second container 2.
Further, in this embodiment, the sealing layer 5 is annular, and the sealing layer 5 is disposed around the outer edge of the first opening and the outer edge of the second opening, so that the first container 1 and the second container 2 can be effectively prevented from leaking water, and the moisture in the air can be prevented from entering the second container 2, which is beneficial to the normal operation of the measurement operation.
Further, in this embodiment, a third container 3 is further included, the third container 3 is disposed in the second container 2, a third opening is disposed at the top of the third container 3, and the identification object 7 is located in the third container 3. The anhydrous calcium chloride has strong hygroscopicity, can absorb moisture in the air, and distilled water usually passes through the insulator sheath material in a mode of tiny water drops or water molecules, the tiny water drops and the water molecules are easy to float in the air of the second container 2, and at the moment, the tiny water drops and the water molecules in the air of the second container 2 can be absorbed by the anhydrous calcium chloride, so that the water permeability of the insulator sheath material can be reflected by the mass change of the anhydrous calcium chloride, and the anhydrous calcium chloride can be placed in the third container 3 with a smaller size for the convenience of measuring the mass change of the anhydrous calcium chloride by workers, so that the workers can take the anhydrous calcium chloride out quickly for weighing.
Further, in this embodiment, the third container 3 is located at the very middle of the second container 2, which facilitates better absorption of moisture formed in the air of the second container 2 by the distilled water permeating the sample 4 by the anhydrous calcium chloride in the third container 3.
Further, in the present embodiment, the outer surface of the first container 1 and the outer surface of the second container 2 are both cylindrical, the diameter of the first container 1 is equal to the diameter of the second container 2, and the vertical projection of the first container 1 coincides with the vertical projection of the second container 2. The arrangement is favorable for most of moisture passing through the sample 4 to enter the second container 2, and normal operation of measurement operation is guaranteed.
More specifically, the vertical projection of the sample 4 covers the vertical projection of the first container 1 (or the second container 2), i.e. the cross-sectional area of the sample 4 is greater than the cross-sectional area of the first container 1 (or the second container 2), so that the arrangement ensures that distilled water can only pass through the sample 4 to enter the second container 2. The third container 3 may also be cylindrical in appearance, the diameter of the third container 3 being smaller than the diameter of the second container 2.
Further, in this embodiment, the top or the side wall of the first container 1 is provided with a liquid inlet, so that when the first container 1 is stacked on the sample 4, it is ensured that the fluid 6 can be introduced into the first container 1 through the liquid inlet, thereby ensuring the normal operation of the measurement operation.
In the measurement, after the first opening of the first container 1 and the second opening of the second container 2 are sealed by silicone grease and the fluid 6 is added to the first container 1, the third container 3 can be periodically taken out and the mass change of the desiccant can be measured with a balance having an accuracy of 0.1 mg. After each measurement, the third container 3 is put back to the original position and the first opening and the second opening are sealed again by using silicone grease, and the quality change of the drying agent is recorded after the next measurement, namely the water permeability of the insulating material is obtained; finally, a change curve of the water permeability of the insulating material along with the water permeability time can be drawn, the slope K is calculated, the K value can reflect the water permeability of the insulating material, and the larger the K value is, the better the water permeability of the insulating material is, and the more inapplicable the insulating material is to the insulator sheath material.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A device for measuring the permeability of a material, comprising a first container and a second container;
the bottom of the first container is provided with a first opening, and the top of the second container is provided with a second opening;
the first container is stacked on the second container, and the first opening and the second opening are separated by a sample;
the first container and the second container are both connected with a sample through a sealing layer;
the first container has a fluid disposed therein, and the second container has an identifier disposed therein for identifying the fluid.
2. The measurement device of claim 1, wherein the fluid is distilled water and the identifier is a desiccant.
3. Measuring device according to claim 2, characterized in that the drying agent is in particular anhydrous calcium chloride.
4. A measuring device according to claim 2, characterized in that the sealing layer is in particular silicone grease.
5. The measuring device of claim 1, further comprising a third container disposed within the second container, a top of the third container having a third opening, the identifier being located within the third container.
6. A measuring device according to claim 5, wherein the third container is located in the very middle of the second container.
7. The measurement device of claim 1, wherein the sealing layer is annular and is circumferentially disposed on an outer edge of the first opening and an outer edge of the second opening.
8. The measuring device of claim 1, wherein the diameter of the first container is equal to the diameter of the second container.
9. A measuring device according to claim 8, characterized in that the vertical projection of the first container coincides with the vertical projection of the second container.
10. A measuring device as claimed in any one of claims 1 to 9, characterized in that the first container is provided with a liquid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247293.0U CN212410351U (en) | 2020-06-30 | 2020-06-30 | Measuring device for permeability of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247293.0U CN212410351U (en) | 2020-06-30 | 2020-06-30 | Measuring device for permeability of material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212410351U true CN212410351U (en) | 2021-01-26 |
Family
ID=74404862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021247293.0U Active CN212410351U (en) | 2020-06-30 | 2020-06-30 | Measuring device for permeability of material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212410351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219400A (en) * | 2022-08-05 | 2022-10-21 | 太原理工大学 | Slow-release film water permeability detection device and method |
-
2020
- 2020-06-30 CN CN202021247293.0U patent/CN212410351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115219400A (en) * | 2022-08-05 | 2022-10-21 | 太原理工大学 | Slow-release film water permeability detection device and method |
| CN115219400B (en) * | 2022-08-05 | 2024-01-30 | 太原理工大学 | Sustained-release membrane water permeability detection device and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212410351U (en) | Measuring device for permeability of material | |
| CN109738425B (en) | Vertical detection method for detecting liquid absorption rate and liquid retention amount of battery diaphragm | |
| CN203037828U (en) | Detection device for lithium ion battery | |
| CN108565114A (en) | A kind of aluminium electrolutic capacitor with anti-electrolyte volatilization function | |
| CN111458663B (en) | Oiled paper capacitive bushing moisture monitoring device and method based on air humidity sensing | |
| CN208922912U (en) | String and hybrid environment-friendly type Tank Capacitors | |
| CN217111363U (en) | Lithium ion battery leak detection device | |
| CN115172900A (en) | Lead-acid batteries prevents leaking protection architecture | |
| JP2003297328A (en) | Separator for sealed lead-acid battery | |
| CN203013536U (en) | Aluminum electrolytic capacitor with firm structure | |
| CN202975159U (en) | Device for testing sheet resistance of lithium ion battery diaphragm | |
| CN214541920U (en) | Anti-aging small-sized aluminum electrolytic capacitor | |
| JPH06201647A (en) | Gas-leakage detector | |
| CN216054315U (en) | Be applied to condenser of water-cooling electrodynamic vibration test equipment | |
| JP2010192574A (en) | Electrolytic capacitor | |
| CN205449728U (en) | Macromolecular material density testing equipment | |
| CN213989049U (en) | Lithium battery with good moisture-proof effect | |
| CN220188567U (en) | Portable electric power detection device | |
| JPH01223714A (en) | Electric double-layer capacitor | |
| CN211828491U (en) | Moisture-proof capacitor | |
| CN213516066U (en) | Temperature sensor | |
| CN210293524U (en) | Vertical response type sensor based on three-dimensional porous graphene film | |
| JPH01304719A (en) | Electric double layer capacitor | |
| CN219957727U (en) | Gel sample conductivity testing device | |
| CN215262293U (en) | Gas monitoring structure of high-voltage switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |