CN102842857A - Switch device - Google Patents
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- CN102842857A CN102842857A CN2011101666660A CN201110166666A CN102842857A CN 102842857 A CN102842857 A CN 102842857A CN 2011101666660 A CN2011101666660 A CN 2011101666660A CN 201110166666 A CN201110166666 A CN 201110166666A CN 102842857 A CN102842857 A CN 102842857A
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- compartment
- air inlet
- pressure relief
- switching device
- baffle plate
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- 238000009423 ventilation Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000013022 venting Methods 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 85
- 239000002699 waste material Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 206010063045 Effusion Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention relates to a switch device. A first compartment comprises a first air inlet and an air outlet; a venting device is mounted at the air outlet; a second compartment comprises a second air inlet; and a first interface is arranged between the first compartment and the second compartment. When the venting device is in operation, air enters the first compartment and the second compartment from the first air inlet and the second air inlet respectively; the air entering the second compartment enters the first compartment through the first interface; and the air entering the first compartment is discharged out of the switch device from the air outlet. At least two of compartments such as a handcart compartment, a bus compartment and a cable compartment and the like in the switch device are subjected to forced ventilation, the corresponding compartments are provided with the air inlets, and the venting device is arranged at the air outlet, so that the cooling capability of the switch device is greatly improved.
Description
Technical field
The present invention relates to a kind of switching device, particularly a kind of force ventilated switching device that is used for distribution system.
Background technology
Switching device (for example switch cubicle) is the important equipment in the distribution system, and it generally includes compartments such as handcart chamber, bus-bar room and cable vault.For the switching device of high load capacity because its rated operational current that bears is bigger, so in running rapidly a large amount of heats of generation make the rapid rising of temperature in the switching device.If as early as possible these heats are not discharged, then can have a strong impact on the performance of various insulating elements in the switching device, and then cause potential safety hazard.Particularly for the little switching device of compact conformation, inner space, this problem is particularly outstanding.
Chinese patent CN201142530Y discloses a kind of force ventilated switching device, and it has the blower fan that is installed in handcart chamber air inlet.Behind fan starting, carry out heat exchange with each parts and discharge from the cabinet top again in that handcart is indoor earlier from the air inlet inhaled air of bottom, handcart chamber.The weak point of this solution is, only can cool off the rival car chamber, and can't cool off bus-bar room and cable vault.
Chinese patent CN201234070Y discloses another force ventilated switching device, and it has the cooling fan that is convenient for changing or overhauls, and air not only can carry out heat exchange and can also in bus-bar room, carry out heat exchange in the handcart chamber.The weak point of this solution is: 1, still can't cool off the cable vault; 2, blower fan is installed on the porch of unique air intake passage, and intake is limited and far away apart from bus-bar room, thereby is unfavorable for switching device is effectively cooled off; 3, when one in handcart chamber and these two compartments of bus-bar room fault such as arcing for example taking place, the gases at high pressure of heat can be accompanied by metallic and get into another compartment, thereby the parts in the compartment that does not break down are caused damage.
Summary of the invention
The objective of the invention is to, a kind of switching device of perfect heat-dissipating is provided, this switching device can also further overcome above-mentioned weak point.
Said purpose realizes through a kind of switching device of the present invention.This switching device comprises the first adjacent compartment and second compartment.Said first compartment comprises first air inlet and gas outlet, and ventilation unit is installed in place, said gas outlet.Said second compartment comprises second air inlet, and has first interface between said first compartment and said second compartment.When said ventilation unit moves; Air gets into said first compartment and said second compartment respectively from said first air inlet and said second air inlet; The air that gets into said second compartment gets into said first compartment through said first interface again, and the air that gets into said first compartment is discharged said switching device from said gas outlet.Be installed in the ventilation unit at place, gas outlet and be arranged on the air inlet at least two compartments, can cool off switching device more effectively.
According to one aspect of the present invention, said first compartment has first pressure relief opening, and said first air inlet has the first air inlet baffle plate.When in said first compartment arcing fault taking place, said first air inlet is made pressed gas overflow from said first pressure relief opening by the said first air inlet flapper closure.Baffle plate is arranged at air inlet both can have been stoped the pressed gas of arcing fault generating directly to rush at the attendant through air inlet and the attendant had been damaged, and can force pressed gas to flow out switching device along the path of safety again and obtained discharging.
According to another aspect of the present invention, said second compartment has second pressure relief opening, and said second air inlet has the second air inlet baffle plate.When in said second compartment arcing fault taking place, said second air inlet is made pressed gas overflow from said second pressure relief opening by the said second air inlet flapper closure.The baffle plate that is arranged at another air inlet can guarantee that the pressed gas in another compartment also discharges along the path of safety safely, thereby has further guaranteed attendant's safety.
According to one side more of the present invention, said first pressure relief opening and said second pressure relief opening lead to pressure releasing chamber.Said first pressure relief opening has the first pressure release baffle plate and said second pressure relief opening has the second pressure release baffle plate.When in said first compartment arcing fault taking place, said second pressure relief opening is by the said second pressure release flapper closure.When in said second compartment arcing fault taking place, said first pressure relief opening is by the said first pressure release flapper closure.When the pressure relief opening of the pressed gas in the compartment that the arcing fault takes place through this compartment flows into pressure releasing chamber rapidly; Pressure releasing chamber can cushion and then reduces its impulsive force pressed gas, and the pressure relief opening through making the compartment that the arcing fault does not take place can further be prevented then that by corresponding pressure release flapper closure pressed gas from getting in the compartment that the arcing fault does not take place and cause damage.
According to another aspect of the present invention, said second air inlet and said second pressure relief opening are same blow vent, and said second air inlet baffle plate and the said second pressure release baffle plate are same vent baffle.When in said first compartment arcing fault taking place, said blow vent is closed by said vent baffle.The air inlet of second compartment and pressure relief opening can be designed as same opening can simplified structure.
According to another aspect of the present invention, said first air inlet is positioned at the front of said switching device, and said gas outlet is positioned at the top of said switching device.The front that air inlet is arranged at switching device can make air flow into switching device swimmingly, and the pressed gas that produces when the top that the gas outlet is arranged at switching device can be avoided the arcing fault better damages the attendant.
According to another aspect of the present invention, said first compartment is the handcart chamber, and said second compartment is a bus-bar room.Bus-bar room during as second compartment, is more suitable for air inlet and pressure relief opening and is set to same opening.
According to another aspect of the present invention, said first compartment is the handcart chamber, and said second compartment is the cable vault.The cable vault during as second compartment, is more suitable for being provided with respectively air inlet and pressure relief opening.
According to another aspect of the present invention, said switching device also comprises the 3rd compartment, has second interface between said first compartment and said the 3rd compartment.Said the 3rd compartment comprises blow vent.When said ventilation unit moved, air got into said the 3rd compartment from said blow vent, and the air that gets into said the 3rd compartment gets into said first compartment through said second interface again, and finally discharges said switching device from said gas outlet.Be that three compartments all are provided with air inlet switching device is better cooled off.
According to another aspect of the present invention, said first compartment is the handcart chamber, and said second compartment is the cable vault, and said the 3rd compartment is a bus-bar room.Second compartment that the cable vault is provided with respectively as air inlet and pressure relief opening, and bus-bar room is preferred as the scheme that air inlet and pressure relief opening are set to the 3rd compartment of same opening.
According to another aspect of the present invention, said first compartment has first pressure relief opening, and said second compartment has second pressure relief opening, and wherein said first pressure relief opening, said second pressure relief opening and said blow vent all lead to pressure releasing chamber.Said first air inlet has the first air inlet baffle plate, said second air inlet has the second air inlet baffle plate, and said blow vent has vent baffle.When in said first compartment arcing fault taking place, said first air inlet is made pressed gas overflow from said first pressure relief opening by the said first air inlet flapper closure.When in said second compartment arcing fault taking place, said second air inlet is made pressed gas overflow from said second pressure relief opening by the said second air inlet flapper closure.When in said the 3rd compartment arcing fault taking place, pressed gas is overflowed from said blow vent.Baffle plate is arranged at each air inlet both can have been stoped the pressed gas of arcing fault generating directly to rush at the attendant through corresponding air inlet and the attendant had been damaged, and can force pressed gas to obtain discharging along the path waste cock device of safety again.
According to another aspect of the present invention, said first pressure relief opening has the first pressure release baffle plate, and said second pressure relief opening has the second pressure release baffle plate.When in said first compartment arcing fault taking place, said second pressure relief opening is closed by said vent baffle by said second pressure release flapper closure and said blow vent.When in said second compartment arcing fault taking place, said first pressure relief opening is closed by said vent baffle by said first pressure release flapper closure and said blow vent.When the arcing fault takes place in said the 3rd compartment when, said first pressure relief opening by the said first pressure release flapper closure and said second pressure relief opening by the said second pressure release flapper closure.Pressed gas in the compartment that the arcing fault takes place flows into rapidly the process of pressure releasing chamber from the pressure relief opening of this compartment; Pressure releasing chamber can cushion and then reduces its impulsive force pressed gas, and the pressure relief opening through making the compartment that the arcing fault does not take place can further be prevented then that by corresponding pressure release flapper closure pressed gas from getting in the compartment that the arcing fault does not take place and cause damage.
According to another aspect of the present invention, said first air inlet is positioned at the front of said switching device, and said second air inlet is positioned at the back side of said switching device, and said gas outlet is positioned at the top of said switching device.The air inlet of handcart chamber is arranged at the front of switching device; The air inlet of cable vault is arranged at the back side of switching device; And the gas outlet is arranged at the top of switching device, the pressed gas that produces in the time of can when making air flow into switching device swimmingly, avoiding the arcing fault better damages the attendant.
According to another aspect of the present invention, said gas outlet has the baffle plate of giving vent to anger.When the arcing fault takes place in said first compartment when, said gas outlet by the said flapper closure of giving vent to anger to protect said ventilation unit.The baffle plate of giving vent to anger that is arranged at gas outlet place can exist in first compartment under the situation of pressed gas closes gas outlet protection ventilation unit.
According to another aspect of the present invention, said pressure releasing chamber has pressure relief device, and pressed gas is discharged said switching device from said pressure relief device.Pressure relief device can keep the pressure in the pressure releasing chamber, can make pressed gas obtain buffering to guarantee pressure releasing chamber.
The invention has the advantages that: through at least two compartments in the compartments such as handcart chamber, bus-bar room and cable vault of switching device are carried out forced ventilation; And through air inlet being set for corresponding compartment and ventilation unit being arranged at the place, gas outlet; Greatly improved the cooling capacity of switching device, and then allowed switching device to have than existing switching device compact structure more.Simultaneously, the design of air inlet baffle plate and pressure release baffle plate can also guide the pressed gas in the compartment that the arcing fault takes place to discharge corresponding compartment along secure path, thereby has avoided pressed gas to go out or get into the compartment that arcing fault does not take place for other from air inlet.
Description of drawings
In conjunction with following accompanying drawing, it is clearer that feature and advantage of the present invention will become, parts that wherein identical symbolic representation is identical or device:
State when Fig. 1 has shown according to the switching device 1 normal operation of one embodiment of the present invention, wherein three of switching device 1 compartments obtain cooling simultaneously;
Fig. 2 has shown the state when the arcing faults take place the handcart chamber 11 in the switching device 1 of Fig. 1;
Fig. 3 has shown the state when the arcing faults take place the cable vault 14 in the switching device 1 of Fig. 1;
Fig. 4 has shown the state when the arcing faults take place the bus-bar room 13 in the switching device 1 of Fig. 1.
List of numerals:
1 switching device; Handcart chambers 11;
12 pressure releasing chamber; 13 bus-bar rooms;
14 cable vaults; 15 ventilation units;
16 circuit breakers; 110,140 air inlets;
150 gas outlets; 120 pressure relief devices;
130 blow vents; 151 baffle plates of giving vent to anger;
112,142 pressure relief openings; 111,141,131,113,143 baffle plates
31,41 interfaces.
Embodiment
According to one embodiment of the present invention; The switching device 1 of Fig. 1 is in normal operating condition; Wherein as the handcart chamber 11 of first compartment respectively with as the cable vault 14 of second compartment and adjacent as the bus-bar room 13 of the 3rd compartment, and and cable vault 14 and bus-bar room 13 between have respectively as the interface 41 of first interface with as the interface 31 of second interface.Handcart chamber 11 comprises the air inlet 110 and gas outlet 150 as first air inlet; And ventilation unit 15 is installed in 150 places, gas outlet; Wherein air inlet 110 is preferably placed at the front of switching device 1; Air inlet 140 is preferably placed at the back side of switching device 1, and gas outlet 150 is preferably placed at the top of switching device 1.Cable vault 14 comprises the air inlet 140 as second air inlet, and bus-bar room 13 comprises blow vent 130.Operating ventilation unit 15 makes air get into handcart chamber 11, cable vault 14 and bus-bar room 13 respectively from air inlet 110, air inlet 140 and blow vent 130; The air that wherein gets into cable vault 14 and bus-bar room 13 gets into handcart chambers 11 through interface 41 and interface 31 respectively again, and the air that gets into handcart chamber 11 from the gas outlet 150 waste cock devices 1.Be that air comes corresponding compartment is cooled off along following three flow path respectively: gas outlet 150 waste cock devices 1 are passed through from the air that air inlet 110 gets into handcart chamber 11 in (1); (2) get into handcart chambers 11 through interface 41 again from the air of air inlet 140 entering cable vaults 14, and final 150 waste cock devices 1 from the gas outlet; (3) air that gets into bus-bar rooms 13 from blow vent 130 gets into handcart chambers 11 through interface 31 again, and final 150 waste cock devices 1 from the gas outlet.Whereby, air can carry out heat exchange fully in each compartment of switching device 1, thereby reaches favorable cooling effect, and wherein interface 41 is realized through the following contact arm of circuit breaker 16 and the slit around the last contact arm respectively with interface 31.
According to another embodiment of the present invention; Handcart chamber 11 also can further have the pressure relief opening 112 as first pressure relief opening; And cable vault 14 also can further have the pressure relief opening 142 as second pressure relief opening, and wherein pressure relief opening 112, pressure relief opening 142 and blow vent 130 all lead to pressure releasing chamber 12.Simultaneously, baffle plate 111, second air inlet 140 that air inlet 110 also can further have as the first air inlet baffle plate also can further have baffle plate 141, and blow vent 130 also can further have vent baffle 131.When in the handcart chamber 11 the arcing fault taking place, the pressed gas that produces in the handcart chamber 11 expands rapidly from inside to outside.Because the flow that interface 31 and interface 41 allowed to pass through in the unit interval is less; So pressed gas can flow into cable vault 14 hardly with bus-bar room 13 but will promote baffle plate 111 and make that air inlet 110 is as shown in Figure 2 and closed by baffle plate 111, and then makes that pressed gas can only be from pressure relief opening 112 effusions.When the arcing fault takes place in the cable vault 14, the pressed gas that expands rapidly will make that air inlet 140 is as shown in Figure 3 is closed so that pressed gas can only be overflowed from pressure relief opening 142 by baffle plate 141.When in the bus-bar room 13 the arcing fault taking place, the pressed gas that expands is rapidly opened promotion vent baffle 131 as shown in Figure 4 fully and is overflowed from blow vent 130.
According to an execution mode more of the present invention, pressure relief opening 112 can further have the baffle plate 113 as the first pressure release baffle plate, and pressure relief opening 142 can further have the baffle plate 143 as the second pressure release baffle plate.When in the handcart chamber 11 the arcing fault taking place, pressure relief opening 142 is closed by baffle plate 143 and vent baffle 131 respectively as shown in Figure 2 with blow vent 130, thereby can keep the pressure in cable vault 14 and the bus-bar room 13.Simultaneously; Because the flow that interface 31 and interface 41 allowed to pass through in the unit interval is less; And the instantaneous pressure gas that produces at electric arc expands to such an extent that be exceedingly fast, so the lower baffle plate 113 of compressive resistance can be open earlier, flows into pressure releasing chamber 12 thereby make pressed gas pass through pressure relief opening 112.Simultaneously, the baffle plate of opening rapidly 113 can promote vent baffle 131 downwards with the pressed gas that gets into pressure releasing chamber 12 blow vent 130 is closed.Because baffle plate 113 can be opened rapidly and since baffle plate 143 respectively pressure relief opening 142 and blow vent 130 are closed with vent baffle 131; So pressed gas can get into the cable vault 14 and bus-bar room 13 adjacent with handcart chamber 11 hardly, but get into pressure releasing chamber 12 through pressure relief opening 112.So just make cable vault 14 and bus-bar room 13 avoid receiving the influence of arcing fault, and with pressed gas along secure path waste cock device 1.When the arcing fault took place in the cable vault 14, pressure relief opening 112 and blow vent 130 are as shown in Figure 3 was closed by baffle plate 113 and vent baffle 131 respectively.At this moment, the pressed gas that produces in the cable vault 14 expands rapidly from inside to outside, and pushes baffle plate 143 open, thereby pressure relief opening 142 is opened fully.The pressed gas that gets into pressure releasing chamber 12 further promotes vent baffle 131 downwards blow vent 130 is closed.Moment gas that produce at electric arc expands as quick as thought because the flow that interface allows in 41 unit interval to pass through is less; The pressure that can keep handcart chamber 11 and bus-bar room 13 again owing to pressure relief opening when pressure relief opening 143 is opened rapidly 112 and blow vent 130 are kept shut by baffle plate 113 and vent baffle 131 respectively; So pressed gas can get into bus-bar room 13 and the handcart chamber 11 adjacent with cable vault 14 hardly; Flow into pressure releasing chamber 12 but push the lower pressure relief plate of compressive resistance 143 earlier open rapidly through pressure relief opening 142, and then make handcart chamber 11 and bus-bar room 13 avoid receiving the influence of arcing fault.When the arcing fault took place in the bus-bar room 13, pressure relief opening 112 and pressure relief opening 142 are as shown in Figure 4 was closed by baffle plate 113 and baffle plate 143 respectively.At this moment, the pressed gas that produces in the bus-bar room 13 expands rapidly from inside to outside, and pushes vent baffle 131 open, thereby blow vent 130 is opened fully, and then gets into pressure releasing chamber 12.Moment gas that produce at electric arc expands to such an extent that be exceedingly fast because the flow that permission is passed through in 31 unit interval of interface is less; Again because vent baffle 131 is opened rapidly and baffle plate 113 makes pressure relief opening 112 and pressure relief opening 142 keep shut respectively with baffle plate 143 and can keep the pressure of handcart chamber 11 and cable vault 14; So pressed gas can get into cable vault 14 and the handcart chamber 11 adjacent with cable vault 14 hardly, thereby makes handcart chamber 11 and bus-bar room 13 avoid receiving the influence of arcing fault.
According to another embodiment of the invention, gas outlet 150 also can further have the baffle plate of giving vent to anger 151.After the arcing fault had taken place in handcart chamber 11, the pressed gas that produce in the handcart chamber 11 baffle plate 151 of can promotion as shown in Figure 2 giving vent to anger was closed gas outlet 150, thereby ventilation unit 15 and pressed gas are isolated, thus protection ventilation unit 15.
According to another embodiment of the invention, pressure releasing chamber 12 also can further have pressure relief device 120.Pressure relief device 120 is arranged to and can in compartment, be taken place under the situation of arcing fault; Make and keep certain pressure in the pressure releasing chamber 12; After pressure accumulates to a certain degree; Open fully again pressed gas waste cock device 1, slow down the mass rate of emission of pressed gas whereby, reduce the risk that the attendant is damaged.In addition, when switching device 1 was in normal operating condition, pressure relief device 120 also allowed air to get into pressure releasing chamber 12, and then realized cooling through blow vent 130 entering bus-bar rooms 13.
It will be understood by those skilled in the art that baffle plate 151, baffle plate 113, baffle plate 111, baffle plate 141, baffle plate 143 and vent baffle 131 in the above various execution mode all can realize through bending metallic plate at a certain angle.For baffle plate 151, baffle plate 111, baffle plate 141 and vent baffle 131; The metallic plate of this bending can be angled with the plane at gas outlet 150, air inlet 110, air inlet 140 and blow vent 130 places respectively under the state of normal operation as shown in Figure 1; Thereby allow gas to flow out gas outlet 150 and inflow air inlet 110, air inlet 140, blow vent 130; And when in the corresponding compartment arcing fault taking place, the pressure that pressed gas produced that expands rapidly is enough to corresponding opening is closed.For baffle plate 113 and baffle plate 143; The metallic plate of this bending can keep shut pressure relief opening 112 and pressure relief opening 142 respectively under the state of normal operation shown in Figure 1; And when in the corresponding compartment arcing fault taking place, the pressure that pressed gas produced that expands rapidly is enough to corresponding opening is opened.Those skilled in the art also will understand, and also can be other compartment of switching device 1 above to first, second and third compartment in the execution mode of at least three compartments, and pressure relief device and pressure releasing chamber are not necessarily.
According to another embodiment of the invention; Also can cool off two of switching device 1 adjacent compartments; For example only cool off to the handcart chamber 11 of conduct as shown in Figure 1 first compartment with as the cable vault 14 or the bus-bar room 13 of second compartment; Wherein handcart chamber 11 still comprises the air inlet 110 and gas outlet 150 as first air inlet, and ventilation unit 15 still is installed in 150 places, gas outlet.Second compartment also comprises as also having interface 41 or the interface 31 as first interface between the air inlet 140 of second air inlet or blow vent 130 and first compartment and second compartment.When bus-bar room 13 is second compartment; Blow vent 130 is first interface as second air inlet and interface 31; Operating ventilation unit 15 makes air get into handcart chamber 11 and bus-bar room 13 respectively from air inlet 110 and blow vent 130 respectively; The air that wherein gets into bus-bar room 13 gets into handcart chambers 11 through interface 31 again, and the final 150 waste cock devices 1 from the gas outlet of the air that gets into handcart chamber 11.When cable vault 14 is second compartment; Air inlet 140 is first interface as second air inlet and interface 41; Operating ventilation unit 15 makes air get into handcart chamber 11 and cable vault 14 respectively from air inlet 110 and air inlet 140 respectively; The air that wherein gets into cable vault 14 gets into handcart chambers 11 through interface 41 respectively again, and the final 150 waste cock devices 1 from the gas outlet of the air that gets into handcart chamber 11.
According to another embodiment of the invention; When two of switching device 1 adjacent compartments are cooled off; Handcart chamber 11 as first compartment can further have the pressure relief opening 112 as first pressure relief opening, and has the baffle plate 111 as the first air inlet baffle plate as the air inlet 110 of first air inlet.When in the handcart chamber 11 the arcing fault taking place, air inlet 110 is closed so that pressed gas is overflowed from pressure relief opening 112 by baffle plate 111 as shown in Figure 2.
According to another embodiment of the invention; When two of switching device 1 adjacent compartments are cooled off; Cable vault 14 or bus-bar room 13 as second compartment also can further have pressure relief opening 142 or blow vent 130 as second pressure relief opening respectively, and also can further have baffle plate 141 or vent baffle 131 as the second air inlet baffle plate respectively as the air inlet 140 or the blow vent 130 of second air inlet.When cable vault 14 as second compartment and when the arcing fault takes place, air inlet 140 is closed so that pressed gas is overflowed from pressure relief opening 142 by baffle plate 141 as shown in Figure 3.When bus-bar room 13 as second compartment and when the arcing fault takes place, blow vent 130 is opened so that pressed gas is overflowed from blow vent 130 as shown in Figure 4 fully, this moment, blow vent 130 was not only as second air inlet but also as second pressure relief opening.
According to another embodiment of the invention, when two of switching device 1 adjacent compartments are cooled off, all lead to pressure releasing chamber 12 as the pressure relief opening 112 of first pressure relief opening with as the pressure relief opening 142 or the blow vent 130 of second pressure relief opening.Pressure relief opening 112 can further have the baffle plate 113 as the first pressure release baffle plate; And pressure relief opening 142 or blow vent 130 can further have baffle plate 143 or vent baffle 131 as the second pressure release baffle plate respectively; Particularly under the situation of bus-bar room 13 as second compartment, vent baffle 130 is not only as the second air inlet baffle plate but also as the second pressure release baffle plate.When in the handcart chamber 11 the arcing fault taking place, pressure relief opening 142 or blow vent 130 are closed by baffle plate 143 or vent baffle 131 respectively.When in the cable vault 14 the arcing fault taking place, pressure relief opening 112 is closed by baffle plate 113 and vent baffle 131 respectively as shown in Figure 3 with pressure relief opening 130.When in the bus-bar room 13 the arcing fault taking place, pressed gas bends it promotion vent baffle 131 as shown in Figure 4, thereby blow vent 130 is opened fully.Because the gas flow that interface 31 or interface 41 allowed to pass through in the unit interval is limited; And the pressure relief plate 113 and the baffle plate 143 of closing can keep the pressure of handcart chamber 11 or cable vault 14, so the pressed gas of the rapid expansion that arcing produces can flow into handcart chamber 11 through interface 31 or interface 41 hardly but flow into pressure releasing chamber 12.
Although more than showed execution mode of the present invention, said execution mode is not intended to show all possible form of the present invention.In addition, the content in this specification is descriptive, and nonrestrictive.Those skilled in the art can make variations and modifications to the content of this specification, and do not depart from the scope of purport of the present invention and claim.
Claims (17)
1. a switching device (1) comprises adjacent first compartment (11) and second compartment (13,14); Said first compartment (11) comprises first air inlet (110) and gas outlet (150), and ventilation unit (15) is installed in said gas outlet (150) and locates, and it is characterized in that: said second compartment (13,14) comprises second air inlet (130,140); Has first interface (31,41) between said first compartment (11) and said second compartment (13,14);
When said ventilation unit (15) moves; Air gets into said first compartment (11) and said second compartment (13,14) respectively from said first air inlet (110) and said second air inlet (130,140); The air that gets into said second compartment (13,14) gets into said first compartment (11) through said first interface (31,41) again, and the air that gets into said first compartment (11) is discharged said switching device (1) from said gas outlet (150).
2. switching device as claimed in claim 1 (1) is characterized in that: said first compartment (11) has first pressure relief opening (112), and said first air inlet (110) has the first air inlet baffle plate (111); When in said first compartment (11) the arcing fault taking place, said first air inlet (110) is closed by the said first air inlet baffle plate (111) and is made pressed gas overflow from said first pressure relief opening (112).
3. switching device as claimed in claim 2 (1) is characterized in that: said second compartment (13,14) has second pressure relief opening (130,142), and said second air inlet (130,140) has the second air inlet baffle plate (131,141); When in said second compartment (13,14) the arcing fault taking place, said second air inlet (130,140) is closed by the said second air inlet baffle plate (131,141) and is made pressed gas overflow from said second pressure relief opening (130,142).
4. switching device as claimed in claim 3 (1) is characterized in that: said first pressure relief opening (112) and said second pressure relief opening (130,142) lead to pressure releasing chamber (12); Said first pressure relief opening (112) has the first pressure release baffle plate (113) and said second pressure relief opening (130,142) has the second pressure release baffle plate (131,143); When in said first compartment (11) the arcing fault taking place, said second pressure relief opening (130,142) is closed by the said second pressure release baffle plate (131,143); When in said second compartment (13,14) the arcing fault taking place, said first pressure relief opening (112) is closed by the said first pressure release baffle plate (113).
5. switching device as claimed in claim 4 (1); It is characterized in that: said second air inlet (130) and said second pressure relief opening (130) are same blow vent (130), and said second air inlet baffle plate (131) and the said second pressure release baffle plate (131) are same vent baffle (131); When in said first compartment (11) the arcing fault taking place, said blow vent (130) is closed by said vent baffle (131).
6. like the described switching device of each claim (1) in the claim 2,3,4 and 5, it is characterized in that: said gas outlet (150) have the baffle plate of giving vent to anger (151); When in said first compartment (11) the arcing fault taking place, said gas outlet (150) are closed to protect said ventilation unit (15) by the said baffle plate of giving vent to anger (151).
7. like the described switching device of each claim (1) in the claim 2,3,4 and 5, it is characterized in that: said first air inlet (110) is positioned at the front of said switching device (1), and said gas outlet (150) are positioned at the top of said switching device (1).
8. switching device as claimed in claim 4 (1) is characterized in that: said first compartment (11) is the handcart chamber, and said second compartment (14) is the cable vault.
9. switching device as claimed in claim 5 (1) is characterized in that: said first compartment (11) is the handcart chamber, and said second compartment (13) is a bus-bar room.
10. switching device as claimed in claim 4 (1) is characterized in that: said pressure releasing chamber (12) has pressure relief device (120), and pressed gas is discharged said switching device (1) from said pressure relief device (12).
11. switching device as claimed in claim 1 (1) is characterized in that: said switching device (1) also comprises the 3rd compartment (13), has second interface (31) between said first compartment (11) and said the 3rd compartment (13); Said the 3rd compartment (13) comprises blow vent (130);
When said ventilation unit (15) moves; Air gets into said the 3rd compartment (13) from said blow vent (130); The air that gets into said the 3rd compartment (13) gets into said first compartment (11) through said second interface (31) again, and finally discharges said switching device (1) from said gas outlet (15).
12. switching device as claimed in claim 11 (1) is characterized in that: said first compartment (11) is the handcart chamber; Said second compartment is cable vault (14); Said the 3rd compartment is bus-bar room (13).
13. like the described switching device of each claim (1) in the claim 11 and 12; It is characterized in that: said first compartment (11) has first pressure relief opening (112); And said second compartment (14) has second pressure relief opening (142), and wherein said first pressure relief opening (112), said second pressure relief opening (142) and said blow vent (130) all lead to pressure releasing chamber (12); Said first air inlet (110) has the first air inlet baffle plate (111), said second air inlet (140) has the second air inlet baffle plate (141), and said blow vent (130) has vent baffle (131); When in said first compartment (11) the arcing fault taking place, said first air inlet (110) is closed by the said first air inlet baffle plate (111) and is made pressed gas overflow from said first pressure relief opening (112); When in said second compartment (14) the arcing fault taking place, said second air inlet (140) is closed by the said second air inlet baffle plate (141) and is made pressed gas overflow from said second pressure relief opening (142); When in said the 3rd compartment (13) the arcing fault taking place, pressed gas is overflowed from said blow vent (130).
14. switching device as claimed in claim 13 (1) is characterized in that: said first pressure relief opening (112) has the first pressure release baffle plate (113); And said second pressure relief opening (142) has the second pressure release baffle plate (143); When in said first compartment (11) the arcing fault taking place, said second pressure relief opening (142) is closed by the said second pressure release baffle plate (143) and said blow vent (130) is closed by said vent baffle (131); When in said second compartment (14) the arcing fault taking place, said first pressure relief opening (112) is closed by the said first pressure release baffle plate (113) and said blow vent (130) is closed by said vent baffle (131); When in said the 3rd compartment (13) the arcing fault taking place, said first pressure relief opening (112) is closed by the said first pressure release baffle plate (113) and said second pressure relief opening (142) is closed by the said second pressure release baffle plate (143).
15. switching device as claimed in claim 14 (1); It is characterized in that: said gas outlet (150) have the baffle plate of giving vent to anger (151); When in said first compartment (11) the arcing fault taking place, the said baffle plate of giving vent to anger (151) closes said gas outlet (150) to protect said ventilation unit (15).
16. switching device as claimed in claim 15 (1) is characterized in that: said pressure releasing chamber (12) has pressure relief device (120), and pressed gas is discharged said switching device (1) from said pressure relief device (12).
17. switching device as claimed in claim 16 (1); It is characterized in that: said first air inlet (110) is positioned at the front of said switching device (1); Said second air inlet (140) is positioned at the back side of said switching device (1), and said gas outlet (150) are positioned at the top of said switching device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110166666.0A CN102842857B (en) | 2011-06-20 | 2011-06-20 | Switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110166666.0A CN102842857B (en) | 2011-06-20 | 2011-06-20 | Switch device |
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| Publication Number | Publication Date |
|---|---|
| CN102842857A true CN102842857A (en) | 2012-12-26 |
| CN102842857B CN102842857B (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110166666.0A Active CN102842857B (en) | 2011-06-20 | 2011-06-20 | Switch device |
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| CN (1) | CN102842857B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490310A (en) * | 2013-10-08 | 2014-01-01 | 国家电网公司 | Arc-leakage-preventing automatic control device of cable chamber ventilating duct |
| CN103715622A (en) * | 2013-12-31 | 2014-04-09 | 山西尚宽电气集团有限公司 | Fan heat dissipation structure for switch cabinet cable chamber |
| CN106384941A (en) * | 2016-09-28 | 2017-02-08 | 江苏天港箱柜有限公司 | High-current plateau type high-voltage fixed type switch cabinet |
| CN108233239A (en) * | 2017-12-21 | 2018-06-29 | 方晓妹 | A kind of high pressure equipment for power transmission and distribution pressure relief system |
| CN108680203A (en) * | 2018-05-28 | 2018-10-19 | 联誉信息股份有限公司 | Intelligent water utilities pipe network data acquisition terminal and its control method |
| CN115411653A (en) * | 2022-08-19 | 2022-11-29 | 信尔德科技有限公司 | A direct-plug double-isolation vacuum high-voltage switchgear |
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| JPS60170403A (en) * | 1984-02-13 | 1985-09-03 | 日新電機株式会社 | Enclosed switchboard |
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| CN101682178A (en) * | 2007-06-25 | 2010-03-24 | 三菱电机株式会社 | Metal-closed switch gear |
| CN201629505U (en) * | 2010-01-29 | 2010-11-10 | 上海天正机电(集团)有限公司 | Circulation radiator on high-capacity enclosed switchgear |
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| JPS60170403A (en) * | 1984-02-13 | 1985-09-03 | 日新電機株式会社 | Enclosed switchboard |
| CN1377110A (en) * | 2001-03-20 | 2002-10-30 | 西门子公司 | Power switch device with ventilating plant and ventilating plant with two ventilating components |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490310A (en) * | 2013-10-08 | 2014-01-01 | 国家电网公司 | Arc-leakage-preventing automatic control device of cable chamber ventilating duct |
| CN103715622A (en) * | 2013-12-31 | 2014-04-09 | 山西尚宽电气集团有限公司 | Fan heat dissipation structure for switch cabinet cable chamber |
| CN103715622B (en) * | 2013-12-31 | 2016-08-17 | 山西尚宽电气集团有限公司 | Fan heat dissipation structure for switch cabinet cable chamber |
| CN106384941A (en) * | 2016-09-28 | 2017-02-08 | 江苏天港箱柜有限公司 | High-current plateau type high-voltage fixed type switch cabinet |
| CN108233239A (en) * | 2017-12-21 | 2018-06-29 | 方晓妹 | A kind of high pressure equipment for power transmission and distribution pressure relief system |
| CN108680203A (en) * | 2018-05-28 | 2018-10-19 | 联誉信息股份有限公司 | Intelligent water utilities pipe network data acquisition terminal and its control method |
| CN115411653A (en) * | 2022-08-19 | 2022-11-29 | 信尔德科技有限公司 | A direct-plug double-isolation vacuum high-voltage switchgear |
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