CN111524649A - All-insulation cast tubular bus and preparation method thereof - Google Patents
All-insulation cast tubular bus and preparation method thereof Download PDFInfo
- Publication number
- CN111524649A CN111524649A CN202010341793.9A CN202010341793A CN111524649A CN 111524649 A CN111524649 A CN 111524649A CN 202010341793 A CN202010341793 A CN 202010341793A CN 111524649 A CN111524649 A CN 111524649A
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- Prior art keywords
- conductor
- bus
- copper pipe
- die cavity
- insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Bodies (AREA)
Abstract
The invention discloses an all-insulation cast tubular bus, which relates to the technical field of power equipment and comprises a conductor, a shielding insulating layer coated outside the conductor and an insulating shell coated outside the shielding insulating layer, wherein a through hole penetrating through the conductor is formed in the conductor along the axis of the conductor. The invention also discloses a preparation method of the all-insulation cast tubular bus. The insulating shell is formed by pouring a plurality of volcanic mineral substances and resin, so that the problems of poor fireproof, anticorrosion and ageing resistance of the conventional insulating material are effectively solved, and the service life of the bus is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an all-insulation cast tubular bus and a preparation method thereof.
Background
The tubular bus is one of key devices in the power transmission and transformation system, and plays an important role in safe and reliable operation of the power transmission and transformation system and the power devices. The tubular bus is mainly applied to conductor connection between a power transmission lead of a power grid and a transformer of a transformer substation in power construction engineering in China, a jumper wire in a power transmission line, a connecting conductor in power equipment and a heavy-current direct-current ice melting device as an overcurrent conductor, is a brand new conductor for replacing a traditional rectangular, groove-shaped, bar-shaped bus and a flexible lead, and is one of key equipment in a power transmission and transformation system.
The tubular bus in the current market generally adopts ethylene propylene rubber as an insulating material, and the tubular bus has poor fireproof, anticorrosive and anti-aging performances, so that the service life of the tubular bus is seriously influenced.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides an all-insulation cast tubular bus and a preparation method thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a full insulation pouring tubular busbar, includes the conductor and wraps the insulating casing outside the conductor, set up along its axis in the conductor and run through the through-hole of conductor, the insulating casing includes the following weight percent's component: 10% of magnesium oxide, 5% of mica magnesium, 7% of magnesium hydroxide, 15% of steel jade powder, 60% of resin and 3% of curing agent.
As a preferred scheme of the all-insulated pipe type waterproof fireproof anticorrosive bus, the invention comprises the following steps: the conductor is a copper pipe.
A preparation method of an all-insulation cast tubular bus comprises the following steps:
s1: cleaning the surface of the copper pipe conductor;
s2: coating a release agent in the casting mould cavity, and then placing the copper pipe conductor in the casting mould cavity;
s3: proportioning the components of the insulating shell according to the weight percentage, adding the components into a vacuum stirrer, and uniformly stirring for 3-5 minutes;
s4: adding the stirred castable into a die cavity, and curing at normal temperature;
s5: and demolding, taking out the bus, and trimming the surface of the bus to obtain a finished product.
As a preferred scheme of the preparation method of the all-insulated pipe type waterproof fireproof anticorrosive bus, the preparation method comprises the following steps: and S4, vibrating the die cavity after the casting material is added into the die cavity.
The invention has the beneficial effects that:
(1) according to the invention, the through hole penetrating through the conductor is formed in the conductor to form the bus inner diameter air duct, so that air convection can be naturally formed, and the heat dissipation performance of the bus is effectively improved;
(2) the insulating shell is formed by pouring a plurality of volcanic mineral substances and resin according to a formula, is high in whiteness, good in gloss, corrosion-resistant, acid-base resistant, chemical-lazy and neutral pH values, specific in hardness, rigidity and wear resistance, good in insulativity, more suitable for application in the aspects of weather resistance, flame resistance and high insulation, effectively solves the problem that the existing insulating material is poor in fire resistance, corrosion resistance and ageing resistance, the hardness and rigidity of the shell formed by mixing the materials in a pouring mode are improved by 8% -15%, and the service life of the bus is effectively prolonged;
(3) according to the invention, the conductor and the casting material are added into the die cavity and then the die cavity is vibrated, so that no air hole is formed in the cured insulating shell, and the strength and the shock resistance of the insulating shell are further ensured.
(4) The tubular bus of the invention has simple production process and low construction cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced 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 to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an all-insulated cast tubular busbar according to the present invention;
wherein: 1. a conductor; 2. an insulating housing.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The tubular bus is one of key devices in the power transmission and transformation system, and plays an important role in safe and reliable operation of the power transmission and transformation system and the power devices. The tubular bus is mainly applied to conductor connection between a power transmission lead of a power grid and a transformer of a transformer substation in power construction engineering in China, a jumper wire in a power transmission line, a connecting conductor in power equipment and a heavy-current direct-current ice melting device as an overcurrent conductor, is a brand new conductor for replacing a traditional rectangular, groove-shaped, bar-shaped bus and a flexible lead, and is one of key equipment in a power transmission and transformation system. The tubular bus in the current market generally adopts ethylene propylene rubber as an insulating material, and the tubular bus has poor fireproof, anticorrosive and anti-aging performances, so that the service life of the tubular bus is seriously influenced.
In view of the above, referring to fig. 1, the present embodiment provides an all-insulated cast tubular bus, which includes a conductor 1 and an insulating casing 2, wherein the insulating casing 2 covers the conductor 1.
The conductor 1 is a copper pipe, the copper pipe is a hollow copper pipe, namely a through hole penetrating through the conductor 1 is formed in the copper pipe along the axis of the copper pipe to form a bus inner diameter air duct, air convection can be naturally formed, and the heat dissipation performance of a bus is effectively improved.
The insulating shell 2 comprises the following components in percentage by weight: 10% of magnesium oxide, 5% of mica magnesium, 7% of magnesium hydroxide, 15% of steel jade powder, 60% of resin and 3% of curing agent. The insulating shell 2 is formed by pouring various volcanic mineral substances and resin, so that the problems of poor fireproof, anticorrosion and ageing resistance of the existing insulating material are effectively solved, and the service life of the bus is effectively prolonged.
The embodiment also provides a preparation method of the all-insulation cast tubular bus, which comprises the following steps:
s1: cleaning the surface of the copper pipe conductor, and then coating the shielding insulating layer outside the copper pipe conductor;
s2: coating a release agent in the casting mould cavity, and then placing the copper pipe conductor in the casting mould cavity;
s3: proportioning the components of the insulating shell according to the weight percentage, adding the components into a vacuum stirrer, and uniformly stirring for 3-5 minutes;
s4: adding the stirred castable into the die cavity, vibrating the die cavity and curing at normal temperature to ensure that no air holes exist in the cured insulating shell;
s5: and demolding, taking out the bus, and trimming the surface of the bus to obtain a finished product.
Therefore, the insulating shell has the advantages of high whiteness, good gloss, corrosion resistance, acid and alkali resistance, chemical laziness, neutral pH value, unique hardness, rigidity and wear resistance, good insulativity, weather resistance, flame resistance and high insulation, is more suitable for application in the aspects of weather resistance, fire resistance and high insulation, improves the fireproof, anticorrosive and ageing resistance of the insulating shell, and effectively prolongs the service life of the bus.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (4)
1. The utility model provides an all insulation pouring tubular busbar which characterized in that: comprises a conductor (1) and an insulating shell (2) coated outside the conductor (1), a through hole penetrating through the conductor (1) is arranged in the conductor (1) along the axis of the conductor,
the insulation shell (2) comprises the following components in percentage by mass: 10% of magnesium oxide, 5% of mica magnesium, 7% of magnesium hydroxide, 15% of steel jade powder, 60% of resin and 3% of curing agent.
2. The all-insulated cast tubular busbar according to claim 1, wherein: the conductor (1) is a copper pipe.
3. The preparation method of the all-insulated pipe type waterproof fireproof anticorrosive bus based on claim 2 is characterized by comprising the following steps of: the method comprises the following steps:
s1: cleaning the surface of the copper pipe conductor (1);
s2: coating a release agent in the casting mould cavity, and then placing the copper pipe conductor in the casting mould cavity;
s3: proportioning the components of the insulation shell according to the mass percentage, adding the components into a vacuum stirrer, and uniformly stirring for 3-5 minutes;
s4: adding the stirred castable into a die cavity, and curing at normal temperature;
s5: and demolding, taking out the bus, and trimming the surface of the bus to obtain a finished product.
4. The all-insulated cast tubular busbar according to claim 3, wherein: and S4, vibrating the die cavity after the casting material is added into the die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341793.9A CN111524649A (en) | 2020-04-27 | 2020-04-27 | All-insulation cast tubular bus and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341793.9A CN111524649A (en) | 2020-04-27 | 2020-04-27 | All-insulation cast tubular bus and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111524649A true CN111524649A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010341793.9A Pending CN111524649A (en) | 2020-04-27 | 2020-04-27 | All-insulation cast tubular bus and preparation method thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593753A (en) * | 2021-07-30 | 2021-11-02 | 长春捷翼汽车零部件有限公司 | Wire harness production method and wire harness |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605687Y (en) * | 2003-02-25 | 2004-03-03 | 上海杰帝实业有限公司 | Fully-closed composite resin poured bus slot |
| CN102286191A (en) * | 2011-05-04 | 2011-12-21 | 扬州润友复合材料有限公司 | High-temperature-resistant insulating composite material sheet and preparation method thereof |
| CN204215799U (en) * | 2014-11-20 | 2015-03-18 | 上海振大电器成套有限公司 | A kind of insulative tubular bus |
| CN208938693U (en) * | 2018-11-15 | 2019-06-04 | 济南富利通电气技术有限公司 | A kind of cast-type fire safe type tube type bus |
-
2020
- 2020-04-27 CN CN202010341793.9A patent/CN111524649A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605687Y (en) * | 2003-02-25 | 2004-03-03 | 上海杰帝实业有限公司 | Fully-closed composite resin poured bus slot |
| CN102286191A (en) * | 2011-05-04 | 2011-12-21 | 扬州润友复合材料有限公司 | High-temperature-resistant insulating composite material sheet and preparation method thereof |
| CN204215799U (en) * | 2014-11-20 | 2015-03-18 | 上海振大电器成套有限公司 | A kind of insulative tubular bus |
| CN208938693U (en) * | 2018-11-15 | 2019-06-04 | 济南富利通电气技术有限公司 | A kind of cast-type fire safe type tube type bus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593753A (en) * | 2021-07-30 | 2021-11-02 | 长春捷翼汽车零部件有限公司 | Wire harness production method and wire harness |
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Application publication date: 20200811 |
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