CN210378711U - Dry-type hollow filter reactor - Google Patents
Dry-type hollow filter reactor Download PDFInfo
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- CN210378711U CN210378711U CN201921341488.9U CN201921341488U CN210378711U CN 210378711 U CN210378711 U CN 210378711U CN 201921341488 U CN201921341488 U CN 201921341488U CN 210378711 U CN210378711 U CN 210378711U
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Abstract
The utility model provides a dry-type hollow filter reactor, including the main coil, the top of main coil is provided with additional coil, and the main coil adopts the transposition wire coiling, the transposition wire is formed by the monofilament transposition of stranded small cross-section, and the outside of main coil is provided with false encapsulated layer, is provided with sound insulation barrel in the periphery of main coil and additional coil, is provided with glass fiber acupuncture felt on sound insulation barrel's the inner wall, and additional coil adopts aluminium wire, copper line, aluminium row or copper bar coiling, and the position welding has the signboard in the branch number of turns of additional coil, connects through the flexible coupling between additional coil and the main coil. The dry-type air-core filter reactor can obviously reduce the vibration condition of the monofilament line under the action of an electromagnetic field, has obvious noise reduction effect, can achieve the effect of reducing noise twice with half the effort, ensures the safe operation of the reactor, is simple in inductance adjustment operation, avoids the operation of a crane on site, and is time-saving and labor-saving.
Description
Technical Field
The utility model relates to a reactor in the electric power industry, specifically speaking relate to a dry-type hollow filter reactor.
Background
In recent years, direct current transmission is on the trend of high-speed development due to the advantages of large transmission capacity, long transmission distance and the like, a filter reactor is connected in series in a filter channel and used for filtering harmonic current generated by a converter, the noise problem of the converter is very prominent due to the large content of the harmonic current, and in addition, an additional coil is required to be additionally arranged for adjusting inductance under the condition of inductance adjustment. The traditional noise reduction mode is that a sound insulation cover is additionally arranged outside the reactor, noise reduction is carried out on the built-in sound absorption cotton, and the moisture absorption performance and the incomplete flame retardance of the sound absorption material bring great hidden dangers to the safe operation of the reactor. At present, the mainstream inductance adjustment mode is realized by adjusting mutual inductance by adopting an upper coil and a lower coil to adjust the gap distance, if the adjustment is needed, the crane needs to be matched on site, the upper distance and the lower distance are not easy to control, and inductance deviation is easy to occur.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a dry-type hollow filter reactor.
The utility model aims at solving through the following technical scheme: the utility model provides a dry-type hollow filter reactor, includes the main coil, and the main coil below supports through supporting insulator, the top of main coil is provided with additional coil, and the main coil adopts the transposition wire coiling, the transposition wire is twisted by the monofilament line of stranded small-cross section and forms, the outside of main coil is provided with false encapsulated layer, is provided with sound insulation tube in the periphery of main coil and additional coil, be provided with glass fiber acupuncture felt on sound insulation tube's the inner wall, additional coil adopts aluminium wire, copper line, aluminium row or copper bar coiling, and the position welding has the signboard in the number of minutes position of additional coil, connects through the flexonics between additional coil and the main coil.
In the scheme, the monofilament line is a 2.5mm round aluminum wire, and the filling rate of the monofilament line in the transposed conductor is more than 75%.
In the above scheme, the false encapsulating layer is arranged into an inner layer and an outer layer, the inner layer false encapsulating layer is provided with a plurality of small holes, the diameter of each small hole is 2mm, and the distance between the small holes is 20 mm.
In the above scheme, the small holes are diamond-shaped.
The utility model relates to a dry-type hollow filter reactor compares with prior art, and its beneficial effect is:
1. the filling rate of the stranded wire is improved by selecting the round wire with the small cross section compared with the wire with the large diameter, and the vibration condition of the monofilament wire under the action of an electromagnetic field can be obviously reduced by the gum dipping treatment in the winding process;
2. the reactor is added with a pseudo-encapsulation, punching and sound absorption mode, so that the operation is simple, and the noise reduction effect is obvious;
3. the noise reduction effect with half effort can be achieved by using the sound insulation cylinder to reduce noise;
4. the inorganic fiber of the glass fiber needled felt is used as a sound absorption material, is flame-retardant, does not absorb moisture, is not corroded, does not mildew, and can ensure the safe operation of the reactor.
5. The inductance adjustment is simple to operate and can be completed by a single person. Avoid on-the-spot crane operation, labour saving and time saving.
Drawings
Fig. 1 is a schematic structural diagram of a dry-type hollow filter reactor of the present invention;
figure 2 is a schematic cross-sectional view of the winding of piece 7 in figure 1.
In the figure: 1. the structure of the composite cable comprises a sound insulation cylinder, 2 parts of a glass fiber needled felt, 3 parts of a flexible connection, 4 parts of an additional coil, 5 parts of an outer false encapsulating layer, 6 parts of an inner false encapsulating layer, 7 parts of a main coil, 8 parts of a supporting insulator, 9 parts of a transposed conductor and 10 parts of a monofilament line.
Detailed Description
The following is a further description of the dry-type hollow filter reactor according to the present invention with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a dry-type air-core filter reactor of the present invention, and fig. 2 is a schematic winding cross-sectional diagram of a member 7 in fig. 1. In the figure, the dry-type hollow filter reactor comprises a main coil 7, wherein the lower part of the main coil 7 is supported by a supporting insulator 8, an additional coil 4 is arranged above the main coil 7, the main coil 7 is wound by a transposed conductor 9, the transposed conductor 9 is formed by twisting a plurality of small-section monofilament yarns 10, the monofilament yarns 10 are round aluminum yarns with the diameter of 2.5mm, and the filling rate of the monofilament yarns 10 in the transposed conductor 9 is more than 75%. The outer portion of the main coil 7 is provided with a false encapsulating layer, the false encapsulating layer is arranged into an inner layer and an outer layer, a plurality of diamond-shaped small holes are formed in the inner layer false encapsulating layer 6, the diameter of each small hole is 2mm, and the distance between the small holes is 20 mm. The periphery of the main coil 7 and the additional coil 4 is provided with the sound insulation cylinder 1, the inner wall of the sound insulation cylinder 1 is provided with the glass fiber needled felt 2, the additional coil 4 is wound by adopting an aluminum wire, a copper wire, an aluminum row or a copper bar, a signboard is welded at the position of the number of turns of the additional coil 4, and the additional coil 4 is connected with the main coil 7 through a flexible connection 3.
The dry-type air-core filter reactor can obviously reduce the vibration condition of the monofilament line under the action of an electromagnetic field, has obvious noise reduction effect, can achieve the effect of reducing noise twice with half the effort, ensures the safe operation of the reactor, is simple in inductance adjustment operation, avoids the operation of a crane on site, and is time-saving and labor-saving.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make various changes or modifications equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a dry-type hollow filter reactor, includes the main coil, and the main coil below supports its characterized in that through supporting insulator: the novel high-voltage transformer is characterized in that an additional coil is arranged above the main coil and wound by a transposed conductor, the transposed conductor is formed by twisting a plurality of strands of small-section monofilament wires, a false encapsulating layer is arranged outside the main coil, sound insulation tubes are arranged on the peripheries of the main coil and the additional coil, a glass fiber needled felt is arranged on the inner wall of each sound insulation tube, the additional coil is wound by aluminum wires, copper wires, aluminum bars or copper bars, signboard pieces are welded at the number-of-turns positions of the additional coil, and the additional coil and the main coil are connected through flexible connection.
2. A dry-type air-core filter reactor according to claim 1, characterized in that: the monofilament line is a 2.5mm round aluminum wire, and the filling rate of the monofilament line in the transposed conductor is more than 75%.
3. A dry-type air-core filter reactor according to claim 1, characterized in that: the false encapsulating layer is arranged into an inner layer and an outer layer, a plurality of small holes are formed in the inner layer false encapsulating layer, the diameter of each small hole is 2mm, and the distance between every two small holes is 20 mm.
4. A dry-type air-core filter reactor according to claim 3, characterized in that: the small holes are rhombic.
Priority Applications (1)
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CN201921341488.9U CN210378711U (en) | 2019-08-16 | 2019-08-16 | Dry-type hollow filter reactor |
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CN201921341488.9U CN210378711U (en) | 2019-08-16 | 2019-08-16 | Dry-type hollow filter reactor |
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CN210378711U true CN210378711U (en) | 2020-04-21 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110504091A (en) * | 2019-08-16 | 2019-11-26 | 西安合容电力设备有限公司 | A kind of dry-type hollow filter reactor |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110504091A (en) * | 2019-08-16 | 2019-11-26 | 西安合容电力设备有限公司 | A kind of dry-type hollow filter reactor |
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