CN102446655A - Gas breaker - Google Patents
Gas breaker Download PDFInfo
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- CN102446655A CN102446655A CN2011102841525A CN201110284152A CN102446655A CN 102446655 A CN102446655 A CN 102446655A CN 2011102841525 A CN2011102841525 A CN 2011102841525A CN 201110284152 A CN201110284152 A CN 201110284152A CN 102446655 A CN102446655 A CN 102446655A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
Abstract
For forming a gas breaker which effectively realizes large electric current switching-off and medium/small electric current switching-off, a heat gas jetting chamber (21) and a mechanical gas jetting chamber (32) are equipped in series. In the heat gas jetting chamber (21), a spacing component (41) is equipped. The spacing component divides the inner part of the chamber along a radial direction for dividing to an inner periphery side space (61) and an outer periphery side space (62). A switching valve (42) which is used as a gas flow control mechanism is equipped between an arc space (31) and the heat gas jetting chamber (21). A movable valve (23) is equipped for opening and closing a communication part (18) of a spacing wall (17) between the heat gas jetting chamber (21) and the mechanical gas jetting chamber (32). When the large electric current is switched off, high-temperature and high-pressure de-arcing gas which comes from the arc space (31) is blown to the arc by means of the switching valve (42) from the outer periphery side space (62) of the spacing component (41) through the inner periphery side space (61). When the medium-small current is switched off, the de-arcing gas which comes from the mechanical gas jetting chamber (32) is only guided to the inner periphery side space (61) of the spacing component and is blown to the electric arc.
Description
Technical field
The present invention relates to the gas-break switch of Puffer type, the present invention particularly relates to the gas-break switch of the Puffer type of the heating boosting that utilizes mechanical compression and electric arc heat.
Background technology
It is jet and with the cut-out of type gas-break switch applicable to big electric current to have both heat of heat nozzle chamber and mechanical nozzle chamber, is used for the high system of voltage.In contrast, the problem that has the cut-out difficulty of medium and small electric current.Thus, in recent years, people attempt adopting the gas-break switch of Puffer type, not only with big failure of current, and with medium and small failure of current.
Such as, in 2009-No. 99499 documents of TOHKEMY (patent documentation 1), disclose purpose and be to arrive the gas-break switch of the failure of current of big electric current from little electric current.Fig. 8 is illustrated in the gas-break switch (being called existing example below) of record in this patent documentation 1.
In the heat booster chamber (heat nozzle chamber) 101 of existing example, this indoor partition member 102 that is divided into principal space 101a and subordinate space 101b is arranged on the concentric circles with the central shaft of heat booster chamber 101.Principal space 101a, is connected with mechanical compress chamber (mechanical nozzle chamber) 105 from the space with the peristome 104a in next door 104 via the gas flow path 103 that is connected with the arc space side.
Even this principal space 101a is set in when medium and small current interruption,, has the size of the volume that can boost at the state of HTHP through arc energy.Near the side end of the flange 106 of partition member 102, interconnecting part 102a is set, near the peripheral end of next door 104, interconnecting part 102b is set.
When big failure of current, the gas of the HTHP that in arc space, produces by this pressure, is pushed non-return valve 107 through principal space 101a, thus, makes peristome 104a be in closed condition.Then, the gas of HTHP is via interconnecting part 102b, and flow along the nozzle direction in the inside of 101b in the subordinate space.
At this moment, the gas of this HTHP mixes with the gas of the lower temperature of the inside that is positioned at subordinate space 101b.Thus, the above-mentioned gas of lower temperature,, blows to electric arc and (below this phenomenon is called circulating phenomenon through gas flow path 103 via peristome 106a from interconnecting part 102a.）。That is, in existing example, be conceived to when making big failure of current to blow the temperature of paying gas be lower temperature, improve and cut off performance.
In addition, when medium and small failure of current,, be lower than the pressure of mechanical compress chamber 105, so non-return valve 107 is in open mode because the pressure of principal space 101a reduces near current zero point gradually.Thus, suppose that generation from mechanical discharge chambe 105, flows to the gas stream of the principal space 101a of heat booster chamber 101.
Through making interconnecting part 102a; The sectional area of 102b and less than the sectional area of the peristome 106a of gas flow path, make to act on interconnecting part 102a, the last pressure of 102b rises; Gas stream only results from principal space 101a in addition; Thus, prevent the situation of gas flow subordinate space 101b shunting, be conceived to reduce the degree of the reduction of pressure.
But existing example has following problem.When big failure of current, has following danger, promptly; In order to make interconnecting part 102a, the sectional area of 102b and less than the sectional area of the peristome 106a of gas flow path, act on interconnecting part 102a; The last pressure of 102b rises; Gas can't flow into from interconnecting part 102b well, can't realize circulating effect.
Even from interconnecting part 102b, flow under the situation of subordinate space 101b side, because the sectional area of interconnecting part 102a is little, so have the danger that reduces significantly from the amount of interconnecting part 102a effluent air at the gas of the HTHP that produces because of electric arc.
In addition, even under the situation that gas flows out from interconnecting part 102a, not only along the direction of gas flow path 103, also the direction along principal space 101a flows this effluent air, and thus, the amount of the gas that flows along the direction of gas flow path 103 further reduces.Thus, in existing example, has a little less than the circulating effect problem that arc performance is also poor.
In addition, when medium and small failure of current, have from mechanical discharge chambe 105; The gas stream of principal space 101a that flows to heat booster chamber 101 is from interconnecting part 102a; Or interconnecting part 102b, flow into the danger of subordinate space 101b, have the effect of the shunting that can't obtain to reduce gas.
Summary of the invention
The purpose of gas-break switch of the present invention is when big failure of current, through positively realizing circulating effect, the gas of lower temperature blowed to electric arc; Through with the stream of the gas outer circumferential side space from heat nozzle chamber, towards interior all sides space, the state in the impetus of keeping gas stream as far as possible blows to electric arc with it, and arc performance is improved.In addition,, prevent the shunting of gas really, thus, improve arc performance even under the situation when medium and small failure of current.
The present invention relates to a kind of gas-break switch, wherein,, but comprise a pair of main contact of clutch in the inside of the container that is filled with arc gas; The fixed arc contact; Can with the movable electric arc contact of said fixing electric arc contact clutch; Insulation nozzle, it surrounds said fixing electric arc contact and above-mentioned movable electric arc contact; Arc space, it is formed between the above-mentioned two electric arc contacts in the insulation nozzle when said fixing electric arc contact and above-mentioned movable electric arc contact leave; Heat nozzle chamber, because of the electric arc heat, the arc gas that pressure rises imports that this is indoor in above-mentioned arc space; Machinery nozzle chamber, itself and above-mentioned heat nozzle chamber in series are provided with, through the compression of machinery; Pressure is risen, between above-mentioned heat nozzle chamber and above-mentioned mechanical nozzle chamber, the next door that forms interconnecting part is set; In above-mentioned heat nozzle chamber, partition member is set, this partition member is radially with its internal separation; With this internal separation is outer circumferential side space and interior all sides space, and above-mentioned partition member at this insulation nozzle side end and mechanical nozzle chamber side end, is offered peristome respectively; It is characterized in that the peristome at above-mentioned insulation nozzle side end, the gas stream controlling organization is set, this mechanism is used for when the pressure of above-mentioned arc space rises; With interior all sides space sealing of above-mentioned heat nozzle chamber, and above-mentioned insulation nozzle side end is open, when the pressure of above-mentioned arc space reduces; With interior all side space openings of above-mentioned heat nozzle chamber, and with above-mentioned insulation nozzle side end sealing, the interconnecting part in above-mentioned next door; Moving valve is set, and it is closed when pressure of above-mentioned arc space rises, with outer circumferential side space and interior all side spatial communication of above-mentioned heat nozzle chamber; And open when the pressure of above-mentioned mechanical nozzle chamber rises, form the stream in interior all sides space of leading to above-mentioned heat nozzle chamber.
Gas stream controlling organization of the present invention is made up of transfer valve, and it comprises with the face of the peristome of above-mentioned insulation nozzle side end sealing with the face of interior all sides space sealing of above-mentioned heat nozzle chamber, slides along the inner peripheral surface of above-mentioned partition member.
In addition, gas stream controlling organization of the present invention is by above-mentioned partition member, transfer valve; Constitute with packaged unit, in this partition member, in interior all sides of above-mentioned insulation nozzle side end; Notch part is set, and in this transfer valve, above-mentioned notch part slides vertically; In this packaged unit; According to the interior all sides space of above-mentioned heat nozzle chamber and the mode of the sealing of the stream between the above-mentioned transfer valve are disposed radially, when above-mentioned transfer valve was snapped in the mechanical nozzle chamber side end of above-mentioned notch part, the face of the face of the inboard of the hollow of above-mentioned transfer valve and the outside diameter of this packaged unit was faced.
In above-mentioned transfer valve, the face of insulation nozzle side end is formed on the level and smooth spigot surface of arc gas.
In addition, through partition member, in above-mentioned heat nozzle chamber, radially cut apart its inside, when it was divided into outer circumferential side space and interior all sides space, the outer circumferential side space in above-mentioned heat nozzle chamber was provided with the macromolecular material with circulating effect.
According to gas-break switch of the present invention, through adopting the gas stream controlling organization, when big failure of current, obtain following effect.Follow and cut off action, produce electric arc, thus, in arc space, produce the arc gas of HTHP.This arc gas imports the outer circumferential side space of the partition member of heat nozzle chamber, mixes with the arc gas of the low temperature that is positioned at the outer circumferential side space, thus, forms the arc gas of lower temperature.Then, because of electric arc shrinks, the pressure of arc space reduces, and the action of the rectification mechanism through receiving its influence forms interior all effluents road of partition member.The arc gas of lower temperature is via interior all effluents road, and the state in the impetus of keeping gas stream blows to electric arc.Can improve arc performance through positively realizing this circulating effect.In addition, when medium and small failure of current, obtain following effect.The pressure of machinery nozzle chamber rises, and makes the moving valve action in the outer circumferential side space that is arranged at demarcation strip, can prevent positively that from mechanical nozzle chamber the arc gas that flows into heat nozzle chamber is diverted to the outer circumferential side space of partition member, can improve arc performance.
In addition, if through partition member, transfer valve is with packaged unit; Constitute the gas stream controlling organization, in this partition member, in interior all sides of above-mentioned insulation nozzle side end; Notch part is set, in this transfer valve, above-mentioned notch part is slided; This packaged unit is according to being disposed radially the interior all sides space of above-mentioned heat nozzle chamber and the mode of the sealing of the stream between the above-mentioned transfer valve since do not have transfer valve and with the axial coincidence of packaged unit, so can reduce fluid resistance.Thus, can more effectively arc gas be blowed to electric arc.In addition, because the face of the insulation nozzle side of above-mentioned transfer valve is the shape of the level and smooth spigot surface of arc gas, so can make arc gas flow into the outer circumferential side space of partition member effectively.
In addition, when medium and small failure of current, through the pressure reduction between mechanical nozzle chamber and the heat nozzle chamber, moving valve is subjected to displacement along the partition member direction.This moving valve and mechanical nozzle chamber side end are close to, thus, and with the outer circumferential side space and the cut-out of interior all sides space of heat nozzle chamber.Thus, can prevent that arc gas is diverted to the situation in outer circumferential side space.Arc gas from mechanical nozzle chamber is being kept the state of its mobile impetus, only via interior all sides space, blows to arc space.Thus, the arc performance in the time of can improving medium and small failure of current.
In addition, if in hot nozzle chamber, the macromolecular material with ablation effect is set, the arc gas of the high temperature of inflow is directly contacted with the macromolecular material with ablation effect.Thus, the pressure in the heat nozzle chamber is risen, obtain further high cut-out performance.
Description of drawings
The cutaway view of the state of preceding heat nozzle chamber takes place in Fig. 1 for the electric arc in the gas-break switch of expression one embodiment of the present of invention.
The cutaway view of the heat nozzle chamber when Fig. 2 is the electric arc generation in the presentation graphs 1.
The cutaway view of the state of the hot nozzle chamber when Fig. 3 pays for the arc gas in the presentation graphs 1 blows.
Fig. 4 (a) and Fig. 4 (b) are the profile of an example of the gas stream controlling organization in the expression gas-break switch of the present invention.
Fig. 5 (a), Fig. 5 (b), Fig. 5 (c) is the cutaway view Amplified image of the different examples of the expression transfer valve that gas-break switch of the present invention adopted.
The cutaway view of the state of the heat nozzle chamber when Fig. 6 pays for the arc gas in the gas-break switch of an expression also embodiment of the present invention blows.
The cutaway view of the state of the heat nozzle chamber when Fig. 7 takes place for the electric arc in the gas-break switch of expression another embodiment of the present invention.
Fig. 8 is the cutaway view of the cut-out portion of existing gas-break switch.
Embodiment
With reference to the accompanying drawings, each embodiment to gas-break switch of the present invention describes.In addition, the invention is not restricted to following embodiment, also can be in the scope that does not break away from purport of the present invention, the shape of appropriate change each several part and structure and implement.
(embodiment 1)
In the portion that opens circuit of the gas-break switch of embodiments of the invention, as shown in Figure 1, the mechanical nozzle chamber 32 of heat nozzle chamber 21 and variable volume in series is provided with via the next door 17 of the interconnecting part 18 that forms peristome.Inside in heat nozzle chamber 21 is provided with partition member 41 cylindraceous, and it radially cuts apart this inside, all sides space 61 and outer circumferential side space 62 in it is divided into.
In addition, the interconnecting part 18 that formation is formed at the peristome on the next door 17 is arranged at cylinder 15 sides in example shown in Figure 1, still, can be arranged at and not hinder slave tool nozzle chamber 32 sides, the position of the inflow of the arc gas that flows stating after resembling.
This partition member 41 comprises such as, following structures.Adopt parts cylindraceous; Itself and heat nozzle chamber 21 are provided with coaxially; Radially heat nozzle chamber 21 is divided into 2 parts, at interval, with the position arbitrarily of periphery 4 five equilibriums of this cylinder-like part according to 90 degree; Be provided with along this cylinder-like part axially, extend to the support unit (not shown in FIG.) in the interior week of cylinder 15.The mode of the inner peripheral surface of the partition member 41 with above-mentioned support unit through being embedded in cylinder 15 is fixed in the inside of heat nozzle chamber 21.
In addition, best in order to alleviate the weight of the portion of opening circuit, the partition member 41 with this support unit is made of aluminum.Also can expect the effect that the arc gas that flows into the HTHP in the heat nozzle chamber 21 is cooled off through making partition member 41 made of aluminum.In addition, insulation nozzle 14 side ends and mechanical nozzle chamber 32 side ends as the two ends of partition member 41 are provided with peristome 53,54 respectively, and interior all sides space 61 of the heat nozzle chamber 21 that will divide through partition member 41 is communicated with outer circumferential side space 62.
At the side end of the insulation nozzle 14 of heat nozzle chamber 21, transfer valve 42 and packaged unit 43 are set.This packaged unit 43 is in the form of annular discs, is fixed in the periphery of hollow stem 16, and is fixed in mechanical nozzle chamber 32 sides of the peristome 53 of partition member 41.Transfer valve 42 is and has its diameter cylindric less than the hollow bulb of the external diameter of packaged unit 43, is snapped on the packaged unit 43.The cylinder outer peripheral face of transfer valve 42 and the inner peripheral surface of partition member 41 are slowly chimeric.Thus, the inner peripheral surface that transfer valve 42 can partition member 41 is a spigot surface, slides vertically.
In said structure, as shown in Figure 2, in arc space 31, produce electric arc, when the gas pressure of this part rises,, push transfer valve 42 through the pressure differential of arc space 31 and heat nozzle chamber 21, be subjected to displacement along the direction of packaged unit 43.Thus, transfer valve 42 is with 51 sealings of the stream between partition member 41 and the packaged unit 43, and the peristome 53 of insulation nozzle 14 side ends is open.
Like this; Transfer valve 42 is used as the gas stream controlling organization with packaged unit 43; When this mechanism was in dissengaged positions at movable electric arc contact 11 with fixed arc contact 12, control flowed into the stream of the arc gas in the heat nozzle chamber 21, with its guiding outer circumferential side space 62.
In addition, the next door 17 of separation heat nozzle chamber 21 and mechanical nozzle chamber 32 is arranged at the periphery of hollow stem 16.In addition, the interconnecting part 18 that heat nozzle chamber 21 is connected with mechanical nozzle chamber 32 is provided with near the mechanical nozzle chamber 32 of outer circumferential side space 62 sides of partition member 41 with the moving valve 23 that this interconnecting part 18 is opened and closed.
This moving valve 23 is in the form of annular discs, has hollow bulb.The diameter of this hollow bulb is less than the external diameter of partition member 41 and the external diameter in next door 17.Moving valve 23 as spigot surface, can slide the inner peripheral surface of cylinder 15 between partition member 41 and next door 17 vertically.
This moving valve 23 produces electric arc as shown in Figure 2, when the gas pressures in the arc space 31 rise, pushes through the pressure differential of heat nozzle chamber 21 and mechanical nozzle chamber 32.Thus, moving valve 23 is subjected to displacement from mechanical nozzle chamber 32, with interconnecting part 18 sealings.
On the other hand,, carry out cutting off action, when the pressure differentials in the mechanical nozzle chamber 32 rise,, push moving valve 23, be subjected to displacement along the direction of partition member 41 through the pressure differential of heat nozzle chamber 21 and mechanical nozzle chamber 32 as shown in Figure 3.In the present embodiment, moving valve 23 is before contact partition member 41, with retainer 63 buckles on the inner face that is arranged at cylinder 15.So moving valve 23 does not contact with partition member 41, between it, have the space, keep peristome 54.
Action during down in the face of big failure of current describes.As shown in Figure 1, if when failure of current,, drive hollow stem 16 through operator, movable electric arc contact 11, movable part lid 13, insulation nozzle 14, cylinder 15, next door 17 is subjected to displacement towards the paper left side, is in dissengaged positions.At this moment, in the arc space 31 that is formed between movable electric arc contact 11 and the fixed arc contact 12, produce electric arc.
When big failure of current, follow electric current to be increased to wave height value, the pressure that is positioned at the arc gas of arc space 31 rises, and is in the condition of high temperature.As shown in Figure 2, this arc gas flows into the inside of heat nozzle chamber 21 at high speed via interconnecting part 22.
Then, as shown in Figure 2, the transfer valves 42 in the hot nozzle chamber 21 bear the dynamic pressure of the arc gas of inflow,, press on the packaged unit 43 to action along partition member 41 and towards the paper left.At this moment, with 51 sealings of the stream between partition member 41 and the packaged unit 43.Meanwhile, the peristome 53 of insulation nozzle 14 side ends is open.Thus, the arc gas of high temperature that flows into the inside of heat nozzle chamber 21 does not at high speed flow into interior all sides space 61 of partition member 41, as arrow, through stream 53, flows into the outer circumferential side space 62 of the heat nozzle chamber 21 that divides through partition member 41.
Thus, the heat energy of electric arc is got access to the inside of hot nozzle chamber 21, the arc gas in the heat nozzle chamber 21 are heated, the pressure in the hot nozzle chamber 21 rise sharp.At this moment, between heat nozzle chamber 21 and mechanical nozzle chamber 32, produce pressure differential, on moving valve 23, effect is closed interconnecting part 18 along the pressing force of the direction of mechanical nozzle chamber 32.
On the other hand; From closed circuit state; Be positioned at the arc gas of high temperature of inside in the outer circumferential side space 62 of arc gas through flowing into heat nozzle chamber 21 of lower temperature of the inside of hot nozzle chamber 21; Via the space between partition member 41 and the moving valve 23,, flow into the inside in interior all sides space 61 of heat nozzle chamber 21 as arrow.
Then, if as shown in Figure 3, near current zero, then electric arc shrinks, and the pressure of arc space 31 reduces, and the pressure in the interconnecting part 22 side spaces of transfer valve 42 also reduces.So the pressure reduction of the arc gas of interconnecting part 22 sides of heat nozzle chamber 21 sides and the mechanical nozzle chamber 32 of transfer valve 42 through being connected in transfer valve 42 is pushed, and moves to interconnecting part 22 sides.Thus, form the stream 51 between packaged unit 43 and the partition member 41, and the stream 52 between packaged unit 43 and the transfer valve 42.Via this stream 51,52, the arc gas of the lower temperature that is compressed in mechanical nozzle chamber 32 sides from heat nozzle chamber 21, through interconnecting part 22, blows to electric arc as arrow.
As above-mentioned,,, can when failure of current greatly, obtain higher cut-out performance so the electric arc cooling effect is high because it is lower to blow to the temperature of arc gas of electric arc.In addition, can only pass through a transfer valve 42, positively switch the stream of arc gas, can realize the high structure of action stability through simple structure.
Best for switch boards 42 that the stream between partition member 41 and the packaged unit 43 51 sealing is used, as shown in Fig. 5 (a)～Fig. 5 (c), have the shape of the slick and sly spigot surface that arc gas is led.In the transfer valve 42 shown in Fig. 5 (a), inner peripheral surface 42a is cone shape level and smooth spigot surface.In the transfer valve 42 shown in Fig. 5 (b), inner peripheral surface 42a is circular-arc level and smooth spigot surface.
Because the function that these cross sectional shapes realizations are led to arc gas is so can be directed to arc gas the outer circumferential side space 62 of partition member 41 effectively.The size on each limit or the curvature of circular-arc part can suitably change.
In addition; In the example of the transfer valve shown in Fig. 5 (c); To the transfer valve shown in Fig. 5 (a) and Fig. 5 (b); By the angular distortion that face 42b that contacts with packaged unit 43 and the face 42c that contacts with demarcation strip 41 form, inner peripheral surface 42a is the shape of the circular-arc level and smooth guiding inner face identical with Fig. 5 (b).Can be through selecting this shape, even under the situation about tilting at the central shaft of the relative hollow stem 16 of central shaft of transfer valve 42, transfer valve 42 is action smoothly still.But the curvature appropriate change of the size on each limit or bend.
In addition, can form transfer valve 42 and the packaged unit 43 recovery springs (not shown in FIG.) a little less than through the spring pressure that flows that does not damage arc gas and be connected the structure that transfer valve 42 and packaged unit 43 are close to.In this occasion, can reduce the arc gas that when failure of current, flows into flow in the situation in all sides space 61, can be more positively with the arc gas outer circumferential side space 62 of leading.
Action during below to medium and small failure of current describes.Because when medium and small failure of current, when big failure of current, the pressure of heat nozzle chamber 21 rises constant more big, so the isostasy of heat nozzle chamber 21 and mechanical nozzle chamber 32 more.Thus, moving valve 23 is as shown in Figure 3, with interconnecting part 18 sealings.Because near current zero point, through cutting off action, with 32 compressions of mechanical nozzle chamber, pressure rises, so be in the pressure status that the pressure of heat nozzle chamber 21 is lower than mechanical nozzle chamber 32.
Thus, as shown in Figure 3, moving valve 23 is along the action of partition member 41 directions, and from mechanical nozzle chamber 32, as arrow, the arc gas of low temperature flows into heat nozzle chamber 21.Because the gap between moving valve 23 and the partition member 41 is narrow, so, resemble that the arc gas in the inflow heat nozzle chamber 21 flows in the outer circumferential side space 62 of partition member 41 hardly the arrow through mechanical nozzle chamber 32.
In addition, near current zero point,,, move to interconnecting part 22 sides so, push transfer valve 42 because of the pressure reduction of heat nozzle chamber 21 sides and interconnecting part 22 sides of transfer valve 42 because the pressure of arc space 31 reduces.Interior all sides space 61 of the partition member 41 that thus, the arc gas of the low temperature in the mechanical nozzle chamber 32 can be through constituting path blows to electric arc with interconnecting part 22.
In addition owing to through between moving valve 23 and partition member 41, the space is set, be stranded in arc gas in the outer circumferential side space 62 get access in all sides space 61, so, can arc gas be blowed to electric arc in the long period.
In addition, next door 17, the angle that moving valve 23, transfer valve 42 and packaged unit 43 are them have curvature etc., reduce the shape of fluid resistance, thus, can more effectively arc gas be blowed to electric arc.
Another example of Fig. 4 (a) and Fig. 4 (b) expression gas stream controlling organization that gas-break switch of the present invention adopted.In the present example, the interior all sides near interconnecting part 22 side ends of the partition member 41 of insulation nozzle 14 are provided with notch part, according to the mode that can in the scope of this notch part, slide transfer valve 42 are set.In addition, packaged unit 43 is provided with in the following manner, and this mode is: shown in Fig. 4 (a), with above-mentioned transfer valve 42 with the stream sealing between the inwall of the central axis direction of the partition member 41 of the internal separation of heat nozzle chamber 21.Thus; When transfer valve 42 was snapped in mechanical nozzle chamber 32 side ends of above-mentioned notch part, the face of outside diameter of face and rounded basically packaged unit 43 of aperture surface that is arranged at the hollow of the rounded basically shape on the transfer valve 42 was in closed state according to the mode of facing.
The gas stream controlling organization periphery of Fig. 4 (a) when representing that with the amplification mode arc gas flows into the inside of heat nozzle chamber 21.At this moment, transfer valve 42 is moving with interconnecting part 22 opposite sides, and the face of the internal side diameter of the hollow of the face of the outside diameter of packaged unit 43 and transfer valve 42 is faced.Thus, when arc gas flows into,, that peristome 53 is open with the sealing of the stream between transfer valve 42 and the packaged unit 43.
Relative this situation, Fig. 4 (b) representes that with the amplification mode arc gas blows the gas stream controlling organization periphery when paying.If like this, transfer valve 42 is displaced to interconnecting part 22 sides, and then at partition member 41, transfer valve 42 forms stream 51 between the packaged unit 43, be in open mode.
If adopt above-mentioned Fig. 4 (a); Gas stream controlling organization shown in Fig. 4 (b) is then compared with Fig. 1～transfer valve shown in Figure 3, owing to there is not the axial coincidence of transfer valve 42 and packaged unit 43; So can reduce fluid resistance, more effectively arc gas blowed to electric arc.
In addition, the transfer valve 42 of gas stream controlling organization preferably adopts the transfer valve that is the shape shown in above-mentioned Fig. 5 (a) and Fig. 5 (b).Can be through adopting them, effectively with the lead outer circumferential side space 62 of partition member 41 of arc gas.
(embodiment 2)
Fig. 6 representes another embodiment of gas-break switch of the present invention.In the present embodiment, to the foregoing description 1, when moving valve 23 was in open mode, the end face of the partition member 41 of moving valve 23 and mechanical nozzle chamber 21 sides was closely connected, and thus, the outer circumferential side space 62 of heat nozzle chamber 21 is broken off with interior all sides space 61.
When medium and small failure of current, because more when big failure of current, the rising degree of the pressure of heat nozzle chamber 21 is little more, so the isostasy of mechanical nozzle chamber 32 and heat nozzle chamber 21.Thus, moving valve 23 is not with interconnecting part 18 sealings.
At near current zero point, through the action of opening circuit, with 32 compressions of mechanical nozzle chamber.Thus, the pressure of mechanical nozzle chamber 32 rises, and the pressure in the hot nozzle chamber 21 is lower than the pressure in the mechanical nozzle chamber 32.Thus, push moving valve 23, this valve 23 moves along switching part 41 directions, through from mechanical nozzle chamber 32, is formed at the interconnecting part 18 on the next door 17, and the arc gas of low temperature flows in the heat nozzle chamber 21.
At this moment, because the end face of the partition member 41 of moving valve 23 and mechanical nozzle chamber 21 sides is close to, so the outer circumferential side space 62 of partition member 41 and the stream in interior all sides space 61 are sealed.Thus, the arc gas that flows into from mechanical nozzle chamber 32 does not flow to the outer circumferential side space 62 of the heat nozzle chamber 21 that divides through partition member 41, and in flowing in all sides space 61.
In addition, through the outer circumferential side space 62 of the heat nozzle chamber 21 that will divide by partition member 41 and the gas flow path sealing in interior all sides space 61, can prevent to be stranded in gas in the outer circumferential side space 62 flow in situation in all sides space 61.The temperature of the arc gas in the outer circumferential side space 62 of heat nozzle chamber 21 is higher than from the temperature of the arc gas of mechanical nozzle chamber 32 inflows.Thus, through preventing the sneaking into of arc gas in the outer circumferential side space 62, can the state of the arc gas that flow into from mechanical nozzle chamber 32 at low temperature be blowed to electric arc.So,,, still can obtain high opening performance even when medium and small failure of current according to present embodiment.
(embodiment 3)
Fig. 7 representes open circuit another embodiment of portion of gas of the present invention.This embodiment is to the foregoing description 1, and in the outer circumferential side space 62 in the heat nozzle chamber 21 that is divided by partition member 41, setting has the macromolecular material 71 of the tetrafluoroethylene resin of ablation (ablation) effect etc.
If such formation can make from arc space 31, the arc gas that flows into the high temperature in the heat arc chamber 21 directly contacts with macromolecular material, can improve pressure effectively, can obtain higher opening performance.
Gas-break switch of the present invention is not limited to said structure, also applicable to other structure.
Claims (6)
1. gas-break switch wherein, in the inside of the container that is filled with arc gas, but comprises a pair of main contact of clutch; The fixed arc contact; Can with the movable electric arc contact of said fixing electric arc contact clutch; Insulation nozzle, it surrounds said fixing electric arc contact and above-mentioned movable electric arc contact; Arc space when it separates with above-mentioned movable electric arc contact at said fixing electric arc contact, is formed between the above-mentioned two electric arc contacts in the insulation nozzle; Heat nozzle chamber, because of the electric arc heat, the arc gas that pressure rises imports that this is indoor in above-mentioned arc space; Machinery nozzle chamber, itself and above-mentioned heat nozzle chamber in series are provided with, through the compression of machinery; Pressure is risen, between above-mentioned heat nozzle chamber and above-mentioned mechanical nozzle chamber, the next door that forms interconnecting part is set; In above-mentioned heat nozzle chamber, partition member is set, this partition member is radially with its internal separation; With this internal separation is outer circumferential side space and interior all sides space, and above-mentioned partition member at this insulation nozzle side end and mechanical nozzle chamber side end, is offered peristome respectively; It is characterized in that the peristome at above-mentioned insulation nozzle side end, the gas stream controlling organization is set, this mechanism is used for when the pressure of above-mentioned arc space rises; With interior all sides space sealing of above-mentioned heat nozzle chamber, and above-mentioned insulation nozzle side end is open, when the pressure of above-mentioned arc space reduces; With interior all side space openings of above-mentioned heat nozzle chamber, and with above-mentioned insulation nozzle side end sealing, the interconnecting part in above-mentioned next door; Moving valve is set, and it is closed when pressure of above-mentioned arc space rises, with outer circumferential side space and interior all side spatial communication of above-mentioned heat nozzle chamber; And open when the pressure of above-mentioned mechanical nozzle chamber rises, form the stream in interior all sides space of leading to above-mentioned heat nozzle chamber.
2. gas-break switch according to claim 1; It is characterized in that the above-mentioned gas flow control mechanism is made up of transfer valve; It comprises with the face of the peristome of above-mentioned insulation nozzle side end sealing with the face of interior all sides space sealing of above-mentioned heat nozzle chamber, slides along the inner peripheral surface of above-mentioned partition member.
3. gas-break switch according to claim 2 is characterized in that in above-mentioned transfer valve, on the level and smooth spigot surface of arc gas, forms the face of insulation nozzle side end.
4. gas-break switch according to claim 1 is characterized in that the above-mentioned gas flow control mechanism is by above-mentioned partition member, transfer valve; Constitute with packaged unit, in this partition member, in interior all sides of above-mentioned insulation nozzle side end; Notch part is set, and in this transfer valve, above-mentioned notch part slides vertically; In this packaged unit; According to the interior all sides space of above-mentioned heat nozzle chamber and the mode of the sealing of the stream between the above-mentioned transfer valve are disposed radially, when above-mentioned transfer valve was snapped in the mechanical nozzle chamber side end of above-mentioned notch part, the face of the face of the inboard of the hollow of above-mentioned transfer valve and the outside diameter of this packaged unit was faced.
5. gas-break switch according to claim 4 is characterized in that in above-mentioned transfer valve the face of insulation nozzle side end is formed on the level and smooth spigot surface of arc gas.
6. gas-break switch wherein, in the inside of the container that is filled with arc gas, but comprises a pair of main contact of clutch; The fixed arc contact; Can with the movable electric arc contact of said fixing electric arc contact clutch; Insulation nozzle, it surrounds said fixing electric arc contact and above-mentioned movable electric arc contact; Arc space, it is formed between the above-mentioned two electric arc contacts in the insulation nozzle when said fixing electric arc contact and above-mentioned movable electric arc contact leave; Heat nozzle chamber, because of the electric arc heat, the arc gas that pressure rises imports that this is indoor in above-mentioned arc space; Machinery nozzle chamber, it in series is provided with above-mentioned heat nozzle chamber, through the compression of machinery, makes the pressure rising; Between above-mentioned heat nozzle chamber and above-mentioned mechanical nozzle chamber, the next door that forms interconnecting part is set, in above-mentioned heat nozzle chamber; Partition member is set, and this partition member is outer circumferential side space and interior all sides space radially with its internal separation with this internal separation; Above-mentioned partition member at this insulation nozzle side end and mechanical nozzle chamber side end, is offered peristome respectively, it is characterized in that the peristome at above-mentioned insulation nozzle side end; The gas stream controlling organization is set, and this mechanism is used for when the pressure of above-mentioned arc space rises, with interior all sides space sealing of above-mentioned heat nozzle chamber; And above-mentioned insulation nozzle side end is open, when the pressure of above-mentioned arc space reduces, with interior all side space openings of above-mentioned heat nozzle chamber; And with above-mentioned insulation nozzle side end sealing, the interconnecting part in above-mentioned next door is provided with moving valve; It is closed when pressure of above-mentioned arc space rises, with outer circumferential side space and interior all side spatial communication of above-mentioned heat nozzle chamber, and open when the pressure of above-mentioned mechanical nozzle chamber rises; The stream in interior all sides space of above-mentioned heat nozzle chamber is led in formation, and the outer circumferential side space in above-mentioned heat nozzle chamber is provided with the macromolecular material with ablation effect.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010225298A JP5482613B2 (en) | 2010-10-05 | 2010-10-05 | Gas circuit breaker |
| JP2010-225298 | 2010-10-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102446655A true CN102446655A (en) | 2012-05-09 |
| CN102446655B CN102446655B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110284152.5A Active CN102446655B (en) | 2010-10-05 | 2011-09-23 | Gas breaker |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5482613B2 (en) |
| KR (1) | KR101826810B1 (en) |
| CN (1) | CN102446655B (en) |
| TW (1) | TWI450298B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104730A (en) * | 2014-02-21 | 2016-11-09 | 普兰西电力技术股份公司 | Contact plug and contact are managed and the method for manufacturing |
| CN108630488A (en) * | 2017-03-24 | 2018-10-09 | 株式会社日立制作所 | Gas cut off device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6266448B2 (en) * | 2014-06-25 | 2018-01-24 | 株式会社日立製作所 | Gas circuit breaker |
| JP6599738B2 (en) * | 2015-11-25 | 2019-10-30 | アイシン精機株式会社 | Intake device for internal combustion engine |
| JP7287135B2 (en) * | 2019-06-19 | 2023-06-06 | 日新電機株式会社 | gas circuit breaker |
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| CN1044008A (en) * | 1989-01-02 | 1990-07-18 | Gec阿尔斯托姆有限公司 | High pressure and medium pressure gas circuit breaker |
| JPH0963433A (en) * | 1995-08-30 | 1997-03-07 | Fuji Electric Co Ltd | Puffer type gas-blast circuit-breaker |
| JP2002197950A (en) * | 2000-12-25 | 2002-07-12 | Toshiba Corp | Gas-blast circuit breaker |
| JP2009099499A (en) * | 2007-10-19 | 2009-05-07 | Toshiba Corp | Gas-blast circuit breaker |
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| JPS5478878U (en) * | 1977-11-16 | 1979-06-05 | ||
| FR2596574B1 (en) * | 1986-04-01 | 1988-05-20 | Alsthom | HIGH VOLTAGE CIRCUIT BREAKER WITH DIELECTRIC GAS UNDER PRESSURE |
| JP2001155595A (en) * | 1999-11-25 | 2001-06-08 | Mitsubishi Electric Corp | Buffer gas breaker |
| JP4098571B2 (en) * | 2002-07-03 | 2008-06-11 | 三菱電機株式会社 | Gas circuit breaker |
| JP4855825B2 (en) * | 2006-04-27 | 2012-01-18 | 株式会社東芝 | Puffer type gas circuit breaker |
| US8168911B2 (en) * | 2008-09-19 | 2012-05-01 | General Electric Company | Circuit breaker with improved arc quenching |
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2010
- 2010-10-05 JP JP2010225298A patent/JP5482613B2/en active Active
-
2011
- 2011-09-16 TW TW100133325A patent/TWI450298B/en active
- 2011-09-23 CN CN201110284152.5A patent/CN102446655B/en active Active
- 2011-10-04 KR KR1020110100605A patent/KR101826810B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044008A (en) * | 1989-01-02 | 1990-07-18 | Gec阿尔斯托姆有限公司 | High pressure and medium pressure gas circuit breaker |
| JPH0963433A (en) * | 1995-08-30 | 1997-03-07 | Fuji Electric Co Ltd | Puffer type gas-blast circuit-breaker |
| JP2002197950A (en) * | 2000-12-25 | 2002-07-12 | Toshiba Corp | Gas-blast circuit breaker |
| JP2009099499A (en) * | 2007-10-19 | 2009-05-07 | Toshiba Corp | Gas-blast circuit breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104730A (en) * | 2014-02-21 | 2016-11-09 | 普兰西电力技术股份公司 | Contact plug and contact are managed and the method for manufacturing |
| CN106104730B (en) * | 2014-02-21 | 2019-11-08 | 普兰西电力技术股份公司 | Contact plug and contacting pipe and method for manufacture |
| CN108630488A (en) * | 2017-03-24 | 2018-10-09 | 株式会社日立制作所 | Gas cut off device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201218235A (en) | 2012-05-01 |
| KR20120035869A (en) | 2012-04-16 |
| KR101826810B1 (en) | 2018-02-07 |
| JP5482613B2 (en) | 2014-05-07 |
| JP2012079601A (en) | 2012-04-19 |
| TWI450298B (en) | 2014-08-21 |
| CN102446655B (en) | 2014-07-30 |
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