CN101930820A - Integrated direct-water-cooled damping resistor - Google Patents
Integrated direct-water-cooled damping resistor Download PDFInfo
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- CN101930820A CN101930820A CN2010102138681A CN201010213868A CN101930820A CN 101930820 A CN101930820 A CN 101930820A CN 2010102138681 A CN2010102138681 A CN 2010102138681A CN 201010213868 A CN201010213868 A CN 201010213868A CN 101930820 A CN101930820 A CN 101930820A
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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 big, 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, finally causes device damage.
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 the upper and lower gas thread water swivel of a side of cavity respectively; Described resistive element is a resistive band, and it is arranged between the spiral channel, and the two ends of resistive band connect the upper and lower binding post of another side of cavity respectively, 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-cooled wirewound resistor, it is poor at 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 big, Heavy Weight and a kind of anti-heavy current impact that provides, electric touch-safe are reliable, and power is big, volume is little, lightweight high-power water-cooled wirewound resistor.It is to establish the sluice at the porcelain tube inside and outside circle, establish water hole on the cap up and down at 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 constitute.
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 alloy filament winding system to form, and reaches 6～10m, may cause defective or damage in preparation of alloy silk 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, influence 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 influence resistance occurs, so the water-cooled wire-wound resistor is not suitable for being applied under the situation of reliability requirement height, life time length;
The high-voltage pulse performance is good---and wire-wound resistor of the prior art directly cools off, and can guarantee operate as normal when operating on low voltage and water quality are better, but high-voltage pulse, and the hidden danger of breakdown between adjacent turns is arranged when especially following deteriorating water quality;
Inductance value is little---and the glass glaze film resistance adopts the structure of surperficial monolithic conductive, Multi-layer Parallel, and inductance value is extremely low distributed inductance, within 100nH;
Summation watt rating is than high---wire-wound resistor is limited by alloy strip resistance rate, for guarantee reliability select the band of larger sectional area for use after resistance wire length will increase volume increase, and the glass glaze film resistance is not limited by resistivity, designs more flexible.On the summation watt rating ratio, surpass wire-wound resistor;
And high-power wire-wound resistor of the prior art in use has open circuit, influences problems such as water quality.
Integrated direct-water-cooled damping resistor of the present invention adopts the pps material, and resistor mechanical strength, heat resistance are increased substantially, and is easy to injection moulding processing.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 of 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 constitutes the damping resistance of integrative-structure and gets energy resistance, and with the damping resistance of described integrative-structure with get plastic casing in can resistance fixing and be contained in, 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 an alumina ceramic plate, in the left side of described alumina ceramic plate is damping resistance, the right side is for getting energy resistance, the left side of described damping resistance is a resistance substrate, be used for the damping resistance film attached to resistance substrate, described right side of getting energy resistance is a resistance substrate, be used for to get the energy resistive film attached to resistance substrate, in the damping resistance of this integrative-structure and the left and right sides water flowing of getting energy resistance, to take away the heat that resistor power produces, advancing of described integrated water-cooled damped resistor, delivery port is arranged on the bottom of plastic casing, and the binding post of resistor is separately positioned on the top and the sidepiece of plastic casing.
Wherein, the thickness of described alumina ceramic plate is 1mm, and insulation is isolated, 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 resistance binding post 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 described plastic casing held is the damping resistance of described integrative-structure and gets more than 5 times of energy 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 big.Reduce significantly with active component temperature under the constant power, so this type water-cooled resistance has the highest power to volume ratio, the inner sump of this type resistance is bigger, 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 a 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 resistance terminals; 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 big of damping resistance in the prior art, provide a kind of heat radiation noninductive, that can directly contact good integrated damped resistor with water.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, to take away the heat that resistor power produces.Wherein the damping resistance rete is a three-decker, getting resistive layer to be one deck, is distributed in the both sides of resistive element respectively, 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 conspicuous carrying out suitable replacement to one skilled in the art 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. integrated water-cooled 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 constitutes the damping resistance of integrative-structure and gets energy resistance, and with the damping resistance of described integrative-structure with get plastic casing in can resistance fixing and be contained in, 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 an alumina ceramic plate, in the left side of described alumina ceramic plate is damping resistance, the right side is for getting energy resistance, the left side of described damping resistance is a resistance substrate, be used for the damping resistance film attached to resistance substrate, described right side of getting energy resistance is a resistance substrate, be used for to get the energy resistive film attached to resistance substrate, in the damping resistance of this integrative-structure and the left and right sides water flowing of getting energy resistance, to take away the heat that resistor power produces, advancing of described integrated water-cooled damped resistor, delivery port is arranged on the bottom of plastic casing, and the binding post of resistor is separately positioned on the top and the sidepiece of plastic casing.
2. integrated water-cooled damped resistor as claimed in claim 1, it is characterized in that, the thickness of described alumina ceramic plate is 1mm, insulation is isolated, 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 resistance binding post is arranged on plastic casing.
3. integrated water-cooled 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. integrated water-cooled 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. integrated water-cooled 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. as the arbitrary described integrated water-cooled 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. as the arbitrary described integrated water-cooled damped resistor of claim 2-5, it is characterized in that described plastic casing adopts polyphenylene sulfide plastic.
8. as the arbitrary described integrated water-cooled damped resistor of claim 2-7, it is characterized in that the volume of the water that described plastic casing held 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 true CN101930820A (en) | 2010-12-29 |
| CN101930820B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522170A (en) * | 2012-01-10 | 2012-06-27 | 北京七一八友晟电子有限公司 | Double-surface-installed double-inner-waterway water-cooled resistor |
| CN105788783A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Round can type liquid cooling resistor and production method thereof |
| 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 |
| 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 |
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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522170A (en) * | 2012-01-10 | 2012-06-27 | 北京七一八友晟电子有限公司 | Double-surface-installed double-inner-waterway water-cooled resistor |
| 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 |
| CN105788783A (en) * | 2016-04-05 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Round can type liquid cooling resistor and production method thereof |
| 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 |
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN101930820B (en) | 2013-03-27 |
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