A kind of 110kV grade thyristor valve body
Technical field
The present invention relates to a kind of electronic switching device, specifically relating to a kind of thyristor valve body for controlling ultra high voltage static reactive equipment.
Background technology
In order to reduce machine of the cutting amount under extra-high voltage direct-current bipolar locking condition, in the part ultra-high voltage transformer station of ac transmission passage, suitably need configure the ultra high voltage static reactive equipment of certain capacity.And ultra high voltage static reactive equipment needs a kind of high-power electric and electronic switching device to control.Therefore, a kind of direct hanging type thyristor valve that can control ultra high voltage static reactive equipment is needed.
Existing 110kV grade direct hanging type thyristor valve many employings TCR type SVC device is as thyristor, and its voltage highest ranking is 66kV, and capacity is that 360MVar can not meet ultra high voltage static reactive equipment to the requirement of voltage and current capacity.And unreasonable due to topology layout poor with radiating effect that is heat abstractor, working under causing direct hanging type thyristor valve to be usually in the condition of high temperature easily breaks down and even damage causes electric power system fault.And existing thyristor valve causes insulation property poor due to the shortcoming of insulation measures, usually breaks down.
For this reason, need to provide a kind of 110kV grade thyristor valve body, ultra high voltage static reactive equipment can be met to the requirement of voltage and current capacity, there is again the advantage of simple, the rationally distributed and good heat dissipation effect of good insulation preformance, structure.
Summary of the invention
Solve the deficiencies in the prior art, the invention provides following technical proposals to realize: provide a kind of 110kV grade thyristor valve body, described thyristor is the switching device being provided with semiconductor element; Described valve body is the rectangular frame being provided with thyristor valve module and heat abstractor in it;
Described thyristor valve module comprises Absorption Capacitance, water-cooled resistance and the thyristor be connected with described heat abstractor and trigger board that the horizontal direction along described framework arranges;
Described thyristor valve module is arranged in parallel along described framework longitudinal direction.
Described framework is the day glyph framework be made up of crossbeam and vertical beam;
The connector of the fixing described thyristor valve module along described parallel longitudinal setting is provided with in described day glyph framework;
Described crossbeam and vertical beam junction are provided with the disc fixture (19) axially parallel with described crossbeam.
Described heat abstractor comprises the radiating subassembly be connected with described thyristor and the water-supply-pipe assembly being arranged on described valve body vertical direction.
Described water-supply-pipe assembly is the order font aqueduct be made up of the water inlet pipe be connected successively, water inlet pipe, the sparge pipe being connected with radiating subassembly and water-cooled resistance, return pipe and return branch;
Described water inlet pipe and return branch are the aqueduct bending to S shape along described vertical direction segmentation.
The return branch being provided with the water inlet pipe be connected with described water inlet pipe, the sparge pipe being provided with radiating subassembly between described water inlet pipe and return pipe successively and being connected with described return pipe;
Described radiating subassembly both sides are connected with described thyristor.
Described water inlet pipe is provided with the axial direction of return pipe the joint being connected described sparge pipe; The two ends of described axial direction are provided with the vertically disposed equipotential connection fitting with described axis;
Described equipotential connection fitting is the stainless steel cylinder be flexibly connected with described water inlet pipe and return pipe.
Described radiating subassembly comprises heating panel and is arranged on the cover plate of described heating panel both sides;
The rectangular slab of disc water channel is provided with centered by described heating panel; Described disc water channel is made up of the inlet channel be crisscross arranged and outlet conduit;
Described inlet channel is connected with described sparge pipe with outlet conduit, and the other end crosses in described disc water channel center water stream, and described current intersection is provided with and forms equal fluidization tower (17) by two and the vertically disposed cylindrical column in described heating panel surface.
The axial centre of described inlet channel and outlet conduit is provided with and the vertically disposed flow distribution plate in described heating panel surface.
Described heating panel is fixed with the terminal block of setting in parallel, described terminal block is provided with the connecting line be connected with described trigger board.
Described framework be two-layer or two-layer more than, be provided with post insulator and aluminium alloy joint pin between every layer of described framework.
Described framework is conductive material, and its upper and lower surface is respectively equipped with the connector be connected with described aluminium alloy joint pin two ends, two adjacent described frameworks and aluminium alloy joint pin composition zigzag electric conductor.
Described post insulator two ends are connected with the described disc fixture being arranged on described framework upper and lower surface respectively;
Also equalizing capacitor is provided with between the equal pressing plate parallel with its side outside described framework;
The two ends being arranged on two described post insulators of described valve body lower end are provided with insulated column arranged in a crossed manner; Described insulated column axial direction is provided with umbrella insulator.
With immediate prior art ratio, technical scheme provided by the invention has following beneficial effect:
1, in the thyristor valve that the application provides, all devices are in same plane, have to reduce valve body height and be convenient to multilayer thyristor valve longitudinally to superpose the advantage arranged;
2, the framework for installing thyristor valve that provides of the application, has frame structure intensity high; Flexible operation is simple and be convenient to splice fixing advantage;
What 3, the application provided adopts disc structure to fix for the framework installing thyristor valve, has reduction corona discharge, reduces the advantage that ozone produces;
4, adopt aluminium alloy joint pin to fix between the framework that the application provides, make the voltage in every layer of framework equal, whole valve inner electric fields uniform;
5, the water-cooling system that provides of the application, turnover water route is positioned in the middle part of valve body, adopt intake from bottom to up, the successively method of supplying water of backwater from top to down, there is the uniform feature that supplies water, improve heat-sinking capability and the useful life of device.
6, the equal pressing plate that provides of the application, can reduce thyristor valve to surrounding air electric discharge, the generation reducing ozone, play a protective role to atmospheric environment.
7, all adopt equalizing capacitor in parallel between every layer of valve body module that the application provides, the voltage that every layer of valve body module is born is identical, whole valve inner electric fields uniform.
8, the thyristor valve bottom that the application provides is supported by post insulator and is provided with intersection oblique pull insulator, can play the effect of the stability of insulation and increase structure.
9, the water-supply-pipe assembly that the application provides is provided with equipotential connection fitting, can play the effect of equipotential and draining.
Accompanying drawing explanation
Fig. 1 is thyristor valve body vertical view provided by the invention;
Fig. 2 is thyristor valve module left view provided by the invention;
Fig. 3 is framework vertical view provided by the invention;
Fig. 4 is thyristor valve body front view provided by the invention;
Fig. 5 is water-supply-pipe assembly front view provided by the invention;
Fig. 6 is radiating subassembly connection diagram provided by the invention;
Fig. 7 is radiating subassembly cutaway view provided by the invention;
Fig. 8 is radiating subassembly left view provided by the invention;
Fig. 9 is water-supply-pipe assembly connection diagram provided by the invention;
Wherein, 1-framework, 2-thyristor, 3-Absorption Capacitance, 4-water-cooled resistance, 5-trigger board, 6-radiating subassembly, 7-water-supply-pipe assembly, 8-water inlet pipe, 9-water inlet pipe, 10-sparge pipe, 11-return pipe, 12-return branch, 13-heating panel, 14-cover plate, 15-inlet channel, 16-outlet conduit, 17-all fluidization tower, 18-flow distribution plate, 19-disc fixture, 20-all pressing plate, 21-insulated column, 22-post insulator, 23-aluminium alloy joint pin, 24-equalizing capacitors
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, a kind of 110kV grade thyristor valve body, described thyristor 2 is for being provided with the switching device of semiconductor element; Described valve body is the rectangular frame 1 being provided with thyristor valve module and heat abstractor in it; It is characterized in that,
As shown in Figure 2, described thyristor valve module comprises Absorption Capacitance 3, water-cooled resistance 4 and the thyristor 2 be connected with described heat abstractor and trigger board 5 that the horizontal direction along described framework 1 arranges;
Described thyristor valve module is arranged in parallel along described framework 1 longitudinal direction.
As shown in Figure 3, described framework 1 is the day glyph framework be made up of crossbeam and vertical beam;
The connector of the fixing described thyristor valve module along described parallel longitudinal setting is provided with in described day glyph framework;
Described crossbeam and vertical beam junction are provided with the disc fixture 19 axially parallel with described crossbeam.
As shown in Figure 4 and Figure 5, described heat abstractor comprises the radiating subassembly 6 be connected with described thyristor 2 and the water-supply-pipe assembly 7 being arranged on described valve body vertical direction.
Described water-supply-pipe assembly 7 is the order font aqueduct be made up of the water inlet pipe 8 be connected successively, water inlet pipe 9, the sparge pipe 10 being connected with radiating subassembly 6 and water-cooled resistance 4, return pipe 11 and return branch 12;
Described water inlet pipe 8 and return branch 12 are the aqueduct bending to S shape along described vertical direction segmentation.
As shown in Figure 6, the return branch 8 being provided with the water inlet pipe 6 be connected with described water inlet pipe 5, the sparge pipe 7 being provided with radiating subassembly 2 between described water inlet pipe 5 and return pipe 9 successively and being connected with described return pipe 9;
Described radiating subassembly 2 both sides are connected with described thyristor 4.
Described water inlet pipe 9 is provided with the axial direction of return pipe 11 joint being connected described sparge pipe 10; The two ends of described axial direction are provided with the vertically disposed equipotential connection fitting with described axis;
Described equipotential connection fitting is the stainless steel cylinder be flexibly connected with described water inlet pipe 9 and return pipe 11.
As shown in Figure 8, described radiating subassembly 6 comprises heating panel 13 and is arranged on the cover plate 14 of described heating panel 13 both sides;
As shown in Figure 7, the rectangular slab of disc water channel is provided with centered by described heating panel 13; Described disc water channel is made up of the inlet channel 15 be crisscross arranged and outlet conduit 16;
As shown in Figure 9, described inlet channel 15 is connected with described sparge pipe 10 with outlet conduit 16, the other end crosses in described disc water channel center water stream, and described current intersection is provided with and forms equal fluidization tower 17 by two with the surperficial vertically disposed cylindrical column of described heating panel 13.
The axial centre of described inlet channel 15 and outlet conduit 16 is provided with the surperficial vertically disposed flow distribution plate 18 with described heating panel 13.
Described heating panel 13 is fixed with the terminal block of setting in parallel, described terminal block is provided with the connecting line be connected with described trigger board 5.
Described framework 1 be two-layer or two-layer more than, be provided with post insulator 22 and aluminium alloy joint pin 23 between every layer of described framework 1.
Described framework 1 is conductive material, and its upper and lower surface is respectively equipped with the connector be connected with described aluminium alloy joint pin 23 two ends, and two adjacent described frameworks 1 and aluminium alloy joint pin 23 form zigzag electric conductor.
Described post insulator 22 two ends are connected with the described disc fixture 19 being arranged on described framework 1 upper and lower surface respectively;
Equalizing capacitor 24 is also provided with between the equal pressing plate 20 parallel with its side outside described framework 1;
The two ends being arranged on two described post insulators 22 of described valve body lower end are provided with insulated column 21 arranged in a crossed manner; Described insulated column 21 axial direction is provided with umbrella insulator.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; although with reference to above-described embodiment to invention has been detailed description; those of ordinary skill in the field still can modify to the specific embodiment of the present invention or equivalent replacement; and these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, its claim of the present invention all awaited the reply in application is protected within model.