CN211350267U - Saturable reactor with runway type structure for converter valve - Google Patents
Saturable reactor with runway type structure for converter valve Download PDFInfo
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- CN211350267U CN211350267U CN201922336161.9U CN201922336161U CN211350267U CN 211350267 U CN211350267 U CN 211350267U CN 201922336161 U CN201922336161 U CN 201922336161U CN 211350267 U CN211350267 U CN 211350267U
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- cable pipe
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Abstract
The utility model provides a saturable reactor for converter valve of runway formula structure, includes water-cooling aluminium cable pipe coil, water-cooling aluminium cable pipe coil winds and makes runway type spiral hollow cylinder structure, the water-cooling aluminium cable pipe coil outside is provided with the multiunit iron core, keep apart and fix with PVDF insulation support piece between the iron core, pack into the casing, the casing divide into upper shell and lower casing, upper shell and lower casing form hollow runway formula columnar structure, upper shell and lower casing and water-cooling aluminium cable pipe coil assemble together with one heart and form the cavity, the end at water-cooling aluminium cable pipe coil both ends is provided with into water thread bush and goes out the water thread bush respectively. The utility model discloses a runway type casing, longitudinal symmetry, mould can be general, and the centre increases the mounting panel part, can be directly arrange directly continuously with the structure of valve spit of fland, has reduced the lower part mounting panel, does benefit to the installation more and dispels the heat.
Description
Technical Field
The utility model relates to a change of current valve technical field of high voltage direct current converter, in particular to saturable reactor for change of current valve of runway formula structure.
Background
In the large-current anode saturable reactor produced in the prior art, a circular appearance is adopted, four-column tensioning screw rods are tightly attached to an excircle tangent line, an upper shell and a lower shell are respectively opened, and the waste and the complexity of a mold are caused.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a saturable reactor for a converter valve of a runway type structure, a runway type shell is used, and the upper and lower symmetry is favorable for installation and heat dissipation.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a saturable reactor for converter valve of runway formula structure, includes water-cooling aluminium cable pipe coil 1, 1 coiling of water-cooling aluminium cable pipe coil become runway type spiral hollow cylinder structure, 1 outside of water-cooling aluminium cable pipe coil is provided with multiunit iron core 3, keep apart and fix with PVDF insulating support 7 between the iron core 3, pack into casing 12, casing 12 divide into casing and lower casing, go up casing and lower casing and form hollow runway formula columnar structure, go up the casing and form the cavity with lower casing and water-cooling aluminium cable pipe coil 1 concentric assembly together, the end at 1 both ends of water-cooling aluminium cable pipe coil is provided with into water thread bush 8 and play water thread bush 9 respectively.
The multiple groups of iron cores 3 are packed by stainless steel belts 4 and are tensioned and fixed by pin assemblies 5 and compression springs 6.
The iron core 3 and the PVDF insulating support 7 are arranged in the shell 12.
And a wire outlet row 10 and a wire inlet row 11 are arranged at the positions of the two ends of the water-cooling aluminum cable coil 1, which are reserved with the cable tube cylindrical surfaces.
And mounting plates 13 are arranged on two sides of the upper shell and the lower shell.
The water-cooling aluminum cable coil 1 is provided with a hollow water-cooling pipeline, the outside of the water-cooling aluminum cable coil is insulated by using crosslinked polyethylene, and a shielding layer is added inside and outside the water-cooling aluminum cable coil.
The utility model has the advantages that:
the utility model discloses a runway type casing, longitudinal symmetry, mould can be general, and the centre increases the mounting panel part, can be directly arrange directly continuously with the structure of valve spit of fland, has reduced the lower part mounting panel, does benefit to the installation more and dispels the heat.
The electric field shielding structure is adopted in the inner part, so that the electric field distribution is more uniform and reasonable, and the service life of the product is greatly prolonged. The elastic material full-closed structure enables the iron core and the coil of the product to be fixed into a whole, reduces vibration amplitude during vibration and has obvious effect of inhibiting vibration noise.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
1 water-cooling aluminum cable coil, 2PEX insulating layer, 3 iron core, 4 stainless steel band, 5 pin components, 6 compression spring, 7PVDF insulating support piece, 8 water inlet thread bush, 9 water outlet thread bush, 10 wire outlet row, 11 wire inlet row, 12 up-down symmetrical shell, 13 mounting plate
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1: the coil is a runway type spiral hollow cylindrical structure wound by winding a water-cooling aluminum cable pipe 1, a plurality of groups of iron cores 3 are sleeved outside the coil 1, stainless steel belts 4 are used for packing, pin components 5 and compression springs 6 are used for tensioning and fixing, PVDF insulation supporting pieces 7 are used for isolating and fixing the iron cores 3, the iron cores are arranged in the shell, an upper shell 12 and a lower shell 12 are of a hollow runway type cylindrical structure, the upper shell 12 and the lower shell 12 are concentrically assembled with the water-cooling aluminum cable pipe coil 1 to form a cavity, the iron cores 3 and the PVDF insulation supporting pieces 7 are arranged in the shell 12, a water inlet threaded sleeve 8 and a water outlet threaded sleeve 9 are welded at the end of the coil 1 to ensure that end faces are located on the same plane, a wire outlet row 10 and a wire inlet row 11 are respectively welded at positions, reserved on the cable pipe cylindrical surfaces, and. The upper and lower casing 12 has mounting plates 13 on both sides for direct connection with the valve heating busbar, and has fastening and sealing holes for the upper and lower casings 12 in the process.
The whole coil is wound by adopting a water-cooling aluminum cable pipe, is provided with a hollow water-cooling pipeline, is insulated by using cross-linked polyethylene at the outside, and is provided with a shielding layer at the inside and the outside, so that the electric field intensity of the coil is uniformly distributed.
All parts in the product are molded by one-step casting by using epoxy resin or polyurethane elastic materials, all parts are tightly connected, and the water-cooling aluminum cable tube coil 1 and the iron core 3 are firmly wrapped in the water-cooling aluminum cable tube coil. The full-sealing structure mode enables the water-cooling aluminum cable tube coil 1 and the iron core 3 to be completely isolated from the outside, and avoids the adverse effect of the outside on the main coil structure part.
And a runway-type mounting structure is adopted, so that the radiating surface of the product is increased, and the radiating of the iron core and the coil is facilitated.
The utility model relates to an anode saturable reactor with a totally-enclosed runway structure, which adopts insulating media (epoxy resin or elastic materials, etc.) for fixing treatment, and has good temperature performance in the use process due to the increase of heat dissipation area because of adopting a side position mounting structure, and a valve heater space can be designed more reasonably after the use of a user; compared with the existing anode saturable reactor, the heat dissipation area is increased by 30%; due to the structural form of the product and the improvement of the casting material, the novel casting material has the advantages of low temperature rise, low noise, strong surge current bearing capacity and the like.
The utility model is used for limiting the thyristor element to be burnt out due to higher current rise rate (di/dt) and higher surge current when the thyristor element in the valve is conducted; and secondly, when the thyristor is in the turn-off period, the circuit has a higher voltage rise rate (du/dt) so as to avoid the false turn-on caused by the surge voltage born by the thyristor element. Therefore, the design of the characteristic of the saturable reactor needs to meet the requirement that the saturable reactor has high impedance at the moment of switching on the thyristor, and once enough current carriers are established in the thyristor element, the saturable reactor presents low impedance characteristic, which is beneficial to reducing the working efficiency of the converter valve.
The utility model discloses a theory of operation:
the aluminum cable pipe is wound into a runner type spiral cylindrical form by utilizing a tool, a section of length of the inlet and outlet cable pipe is reserved, a plurality of groups of high-permeability iron cores 3 are annularly sleeved outside a coil and fixed by stainless steel belts 4, PVDF insulators 7 are adopted among the iron cores 3 for supporting and isolating to prevent local eddy current heating caused by multipoint grounding among the iron cores 3, elastic material pouring and curing are carried out after the iron cores are arranged in a shell 12, a connecting bus bar is welded at a wire outlet end, and a water inlet thread bush 8 and a water outlet thread bush 9 are welded with terminal ends.
Claims (6)
1. The utility model provides a saturable reactor for converter valve of runway formula structure which characterized in that, includes water-cooling aluminium cable pipe coil (1), water-cooling aluminium cable pipe coil (1) coiling become runway type spiral hollow cylinder structure, water-cooling aluminium cable pipe coil (1) outside is provided with multiunit iron core (3), keep apart and fix with PVDF insulating support piece (7) between iron core (3), pack into casing (12) in, casing (12) divide into casing and lower casing, go up casing and lower casing and form hollow runway formula columnar structure, go up casing and lower casing and water-cooling aluminium cable pipe coil (1) concentric assembly and form the cavity together, the end at water-cooling aluminium cable pipe coil (1) both ends is provided with into water thread bush (8) and play water thread bush (9) respectively.
2. The saturable reactor for the converter valve with a runway structure as claimed in claim 1, characterized in that the multiple sets of iron cores (3) are packed by stainless steel belts (4) and are tensioned and fixed by pin assemblies (5) and compression springs (6).
3. The saturable reactor for the converter valve with a racetrack structure according to claim 1, wherein the iron core (3) and the PVDF insulating support (7) are arranged in the shell (12).
4. The saturable reactor for the converter valve with the runway structure as claimed in claim 1, wherein a wire outlet row (10) and a wire inlet row (11) are arranged at positions of two ends of the water-cooled aluminum cable coil (1) reserved with cable tube cylindrical surfaces.
5. The saturable reactor for the converter valve of a racetrack structure according to claim 1, wherein mounting plates (13) are arranged on two sides of the upper shell and the lower shell.
6. The saturable reactor for the converter valve with the runway structure as claimed in claim 1, wherein the water-cooled aluminum cable coil (1) is provided with a hollow water-cooled pipeline, the exterior of the hollow water-cooled pipeline is insulated by crosslinked polyethylene, and a shielding layer is added on the interior and the exterior of the hollow water-cooled pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336161.9U CN211350267U (en) | 2019-12-24 | 2019-12-24 | Saturable reactor with runway type structure for converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922336161.9U CN211350267U (en) | 2019-12-24 | 2019-12-24 | Saturable reactor with runway type structure for converter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211350267U true CN211350267U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922336161.9U Active CN211350267U (en) | 2019-12-24 | 2019-12-24 | Saturable reactor with runway type structure for converter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211350267U (en) |
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2019
- 2019-12-24 CN CN201922336161.9U patent/CN211350267U/en active Active
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