CN101930820B - Integrated direct-water-cooled damping resistor - Google Patents
Integrated direct-water-cooled damping resistor Download PDFInfo
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- CN101930820B CN101930820B CN 201010213868 CN201010213868A CN101930820B CN 101930820 B CN101930820 B CN 101930820B CN 201010213868 CN201010213868 CN 201010213868 CN 201010213868 A CN201010213868 A CN 201010213868A CN 101930820 B CN101930820 B CN 101930820B
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Abstract
The invention provides an integrated direct-water-cooled damping resistor, which comprises a damping resistor and an energy acquisition resistor formed into an integrated structure by making the damping resistor and the energy acquisition resistor into a non-inductive integrated structure capable of being directly cooled by water in a DC converter valve, and a plastic shell fixing and accommodating the damping resistor and the energy acquisition resistor formed into the integrated structure. The integrated direct-water-cooled damping resistor is cooled in a direct water-cooling way. The water-cooled resistor of the invention has the highest power volume ratio and a relatively larger internal water sump, has advantages in water-break tests and is very applied to high-voltage high-power occasions.
Description
Technical field
The invention belongs to the electric power system devices field, be specifically related to a kind of high voltage direct current transmission converter valve integrated direct-water-cooled damping resistor.
Background technology
Since 20th century the mid-80s, the liquid cools that all converter valve in the electric power system have all adopted pure water or water/ethylene glycol to mix, damping resistance is main heat dissipation element in the converter valve, the quality of its heat dispersion is directly connected to the normal operation of converter valve, common DC converter valve adopts the indirect water-cooling mode, water-cooling system and damping resistance are independent separate, this kind radiating mode volume is large, heat dispersion is relatively poor, the inductance of damping resistance high impedance can occur under high frequency voltage in addition, and converter valve may suffer lightning impulse when operation, the steep wave surge voltage, frequency is very high, final cause damage of equipment.
Chinese patent application 200720311343.5 discloses a kind of simple in structure, modularized design, and overall dimension is comparatively fixing, and is specially adapted to extra-high voltage direct-current transmission converter valve water-cooling type damped resistor.This resistor comprises resistive element and insulation crust, it is characterized in that, described insulation crust includes cavity and lid, is provided with spiral channel in the cavity, and its entery and delivery port connects respectively the upper, lower tube screw thread water swivel of a side of cavity; Described resistive element is resistive band, and it is arranged between the spiral channel, and the two ends of resistive band connect respectively the upper and lower binding post of another side of cavity, and described lid docks with cavity described spiral channel and resistive band sealing.
Chinese patent application 01246810.X discloses a kind of high-power water-cooling wirewound resistor, it is poor for the anti-high current impulse withstanding capability of present high-power wire-wound resistor, it is little that depended on pressure connects the electric dangerous power that reliably causes, volume is large, Heavy Weight and a kind of anti-heavy current impact, the electrical contact that provide are safe and reliable, and power is large, volume is little, lightweight high-power water-cooling wirewound resistor.It is to establish the sluice at the porcelain tube inside and outside circle, cap is established water hole about porcelain tube, set resistive band termination is fixed in up and down and forms resistor core on the cap on the porcelain tube cylindrical, at resistor core peripheral hardware water jacket, formed water layer, two or more resistor cores are attempted by between the top board of the lower platen that is provided with the inlet opening and apopore, connect by threaded engagement and conductive strips and form upper and lower electrode and consist of.
Integrated direct-water-cooled damping resistor of the present invention is compared with above-mentioned water-cooled wire-wound resistor of the prior art, and glass glaze resistance has following advantage:
Useful life and better reliability---wire-wound resistor adopts superfine B alloy wire coiling to form, and reaches 6～10m, may cause defective or damage in B alloy wire preparation and the winding process.Wire-wound resistor is directly invaded in water and is cooled off, and the electric resistance alloy silk has the free metal to disengage, and is corroded.To cause resistive-open after the long-term work, affect water quality.And the glass glaze film resistance adopts the membrane type structure, matrix surface is covered with the glass glaze film conductive layer that forms through 850 degree high temperature sinterings, even the normal use that indivedual point defects can not affect resistance occurs, so the water-cooled wire-wound resistor is not suitable for being applied in the situation that reliability requirement is high, life time is long;
The high-voltage pulse performance is good---and wire-wound resistor of the prior art directly cools off, and can guarantee normal operation when operating on low voltage and water quality are better, but high-voltage pulse has the hidden danger of breakdown between adjacent turns when especially following deteriorating water quality;
Inductance value is little---and the glass glaze film resistance adopts the structure of surface integral conduction, Multi-layer Parallel, and inductance value is extremely low distributed inductance, within 100nH;
Summation watt rating is than high---and wire-wound resistor is limited by alloy strip resistance rate, and for resistance wire length behind the band that guarantees the Selection for Reliability larger sectional area will increase, volume increases, and the glass glaze film resistance is not limited by resistivity, designs more flexible.Surpass wire-wound resistor at the summation watt rating ratio;
And high-power wire-wound resistor of the prior art in use has open circuit, affects the problems such as water quality.
Integrated direct-water-cooled damping resistor of the present invention adopts the pps material, resistor mechanical strength, heat resistance is increased substantially, and be easy to injection molding.When cut off the water supply, when transshipping, power-type resistance will produce a large amount of high-temperature water vapors, adopt pps, resistive element is difficult for damaging because thermal deformation causes resistance, reliability increases substantially.Be better than the PVDF material.
Summary of the invention
The invention provides a kind of DC converter valve integrated direct-water-cooled damping resistor, comprise and can resistance make noninductive with getting damping resistance in the DC converter valve, but thereby the integrative-structure of direct water-cooling is integrally formed the damping resistance of structure and gets energy resistance, and with the damping resistance of described integrative-structure with get the plastic casing of can resistance fixing and being accommodated in the inner, adopt the mode of direct water-cooling to cool off, it is characterized in that, the damping resistance of described integrative-structure with the internal structure of getting energy resistance is: the centre is alumina ceramic plate, be damping resistance in the left side of described alumina ceramic plate, the right side is for getting energy resistance, the left side of described damping resistance is resistance substrate, be used for the damping resistance film is attached to resistance substrate, described right side of getting energy resistance is resistance substrate, be used for to get and be attached to resistance substrate by resistive film, in the damping resistance of this integrative-structure and the left and right sides water flowing of getting energy resistance, the heat that produces to take away resistor power, advancing of described integrated water-cooling damped resistor, delivery port is arranged on the bottom of plastic casing, and the binding post of resistor is separately positioned on top and the sidepiece of plastic casing.
Wherein, the thickness of described alumina ceramic plate is 1mm, makes insulation isolation between the resistance of the left and right sides, and dielectric strength can reach more than the 10kV, wherein the damping resistance binding post is arranged on the top of plastic casing, gets the sidepiece that energy resistor wiring terminal is arranged on plastic casing.
Wherein, described damping resistance is the high voltage direct current transmission converter valve damping resistance.
Wherein, described getting can resistance be that high voltage direct current transmission converter valve can resistance with getting.
Wherein, described damping resistance can resistance be the glass glaze membrane structure with getting.
Wherein, the damping resistance of described integrative-structure adopts the sealing ring sealing with the contact site of getting energy resistance and plastic casing.
Wherein, described plastic casing adopts polyphenylene sulfide plastic.
Wherein, the volume of the water that holds of described plastic casing is the damping resistance of described integrative-structure and get can more than 5 times of resistance volume.
Advantage of the present invention is: resistance is inner to be glass glaze film resistance substrate, adopts the insulation type of cooling, and the thermal resistance between active component and the water is extremely low, and heat exchange area is also very large.Active component temperature decrease under the Same Efficieney, so this type water-cooled resistance has the highest power to volume ratio, the inner sump of this type resistance is larger, has advantage when cutting off the water supply test, is highly suitable for the high-power occasion.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is resistance overall diagram of the present invention;
Fig. 2 is cooling principle figure of the present invention;
Among the figure: 1, damping resistance terminals; 2, get energy resistor wiring end; 3, water inlet; 4, delivery port; 5, shell is in conjunction with hinge; 6, pps shell; 7, current; 8, sealing ring; 9, alumina ceramic plate; 10, resistance substrate; 11, resistive layer;
Embodiment
For solving the problem that radiating effect is poor, inductance is large of damping resistance in the prior art, provide a kind of heat radiation noninductive, that can directly contact with water good integrated damped resistor.Concrete scheme is as follows:
The integrated direct-water-cooled damping resistance of a kind of DC converter valve, but be specifically related to the noninductive damping resistance of direct water-cooling in the DC converter valve and get energy resistance, and two kinds of resistance are made of one, and adopt the mode of direct water-cooling to cool off.
In the such scheme, described resistive element adopts glass glaze film resistance substrate, is scribbling the opposite side water flowing of resistive layer, the heat that produces to take away resistor power.Wherein the damping resistance rete is three-decker, getting resistive layer to be one deck, is distributed in respectively the both sides of resistive element, is the thick alumina ceramic plate of 1mm between the resistive layer of the left and right sides, make insulation isolation between the resistance of the left and right sides, dielectric strength should be able to reach 10kV.
In the such scheme, the entery and delivery port of described resistor is in the bottom of resistance, and at top and the sidepiece of resistance, with insulating support support respectively by the bottom for the binding post of resistance.
Invention has been described according to specific exemplary embodiment herein.It will be apparent carrying out to one skilled in the art suitable replacement or revise under not departing from the scope of the present invention.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Claims (8)
1. DC converter valve integrated water-cooling damped resistor, comprise and can resistance make noninductive with getting damping resistance in the DC converter valve, but thereby the integrative-structure of direct water-cooling is integrally formed the damping resistance of structure and gets energy resistance, and with the damping resistance of described integrative-structure with get the plastic casing of can resistance fixing and being accommodated in the inner, adopt the mode of direct water-cooling to cool off, it is characterized in that, the damping resistance of described integrative-structure with the internal structure of getting energy resistance is: the centre is alumina ceramic plate, be damping resistance in the left side of described alumina ceramic plate, the right side is for getting energy resistance, the left side of described damping resistance is resistance substrate, be used for the damping resistance film is attached to resistance substrate, described right side of getting energy resistance is resistance substrate, be used for to get and be attached to resistance substrate by resistive film, described resistive film is the glass glaze film, in the damping resistance of this integrative-structure and the left and right sides water flowing of getting energy resistance, the heat that produces to take away resistor power, advancing of described DC converter valve integrated water-cooling damped resistor, delivery port is arranged on the bottom of plastic casing, and the binding post of resistor is separately positioned on top and the sidepiece of plastic casing.
2. DC converter valve integrated water-cooling damped resistor as claimed in claim 1, it is characterized in that, the thickness of described alumina ceramic plate is 1mm, make insulation isolation between the resistance of the left and right sides, dielectric strength can reach more than the 10kV, wherein the damping resistance binding post is arranged on the top of plastic casing, gets the sidepiece that energy resistor wiring terminal is arranged on plastic casing.
3. DC converter valve integrated water-cooling damped resistor as claimed in claim 2 is characterized in that, described damping resistance is the high voltage direct current transmission converter valve damping resistance.
4. DC converter valve integrated water-cooling damped resistor as claimed in claim 2 is characterized in that, described getting can resistance be that high voltage direct current transmission converter valve can resistance with getting.
5. DC converter valve integrated water-cooling damped resistor as claimed in claim 2 is characterized in that, described damping resistance can resistance be the glass glaze membrane structure with getting.
6. such as the arbitrary described DC converter valve integrated water-cooling damped resistor of claim 2-5, it is characterized in that the damping resistance of described integrative-structure and the contact site employing sealing ring sealing of getting energy resistance and plastic casing.
7. such as the arbitrary described DC converter valve integrated water-cooling damped resistor of claim 2-5, it is characterized in that, described plastic casing adopts polyphenylene sulfide plastic.
8. DC converter valve integrated water-cooling damped resistor as claimed in claim 7 is characterized in that, the volume of the water that described plastic casing holds is the damping resistance of described integrative-structure and gets more than 5 times of energy resistance volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010213868 CN101930820B (en) | 2010-06-30 | 2010-06-30 | Integrated direct-water-cooled damping resistor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010213868 CN101930820B (en) | 2010-06-30 | 2010-06-30 | Integrated direct-water-cooled damping resistor |
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| Publication Number | Publication Date |
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| CN101930820A CN101930820A (en) | 2010-12-29 |
| CN101930820B true CN101930820B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010213868 Active CN101930820B (en) | 2010-06-30 | 2010-06-30 | Integrated direct-water-cooled damping resistor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522170B (en) * | 2012-01-10 | 2014-05-14 | 北京七一八友晟电子有限公司 | Double-surface-installed double-inner-waterway water-cooled resistor |
| CN105788783B (en) * | 2016-04-05 | 2017-10-20 | 中国船舶重工集团公司第七一二研究所 | A kind of round can type liquid cooling resistance and its manufacture method |
| CN105916349A (en) * | 2016-04-27 | 2016-08-31 | 许继集团有限公司 | Direct current power transmission converter valve and water cooling radiator |
| CN105915075A (en) * | 2016-04-27 | 2016-08-31 | 许继集团有限公司 | Direct current power transmission converter valve and water cooling apparatus |
| CN113470908A (en) * | 2021-07-21 | 2021-10-01 | 苏州宏顿电子科技有限公司 | Water-cooled three-phase filter resistor and manufacturing process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000294401A (en) * | 1999-04-07 | 2000-10-20 | Tokai Konetsu Kogyo Co Ltd | Water-cooled resistor |
| CN101308716A (en) * | 2008-07-18 | 2008-11-19 | 北京七一八友晟电子有限公司 | Matrix type dielectric water-cooling resistor locker |
| CN201156456Y (en) * | 2007-12-21 | 2008-11-26 | 中国西电电气股份有限公司 | Water cooling damping resistor for DC power transmission converter valve |
-
2010
- 2010-06-30 CN CN 201010213868 patent/CN101930820B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000294401A (en) * | 1999-04-07 | 2000-10-20 | Tokai Konetsu Kogyo Co Ltd | Water-cooled resistor |
| CN201156456Y (en) * | 2007-12-21 | 2008-11-26 | 中国西电电气股份有限公司 | Water cooling damping resistor for DC power transmission converter valve |
| CN101308716A (en) * | 2008-07-18 | 2008-11-19 | 北京七一八友晟电子有限公司 | Matrix type dielectric water-cooling resistor locker |
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| CN101930820A (en) | 2010-12-29 |
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