CN204243598U - Tank body and use arc control device, the closed type switch of this tank body - Google Patents
Tank body and use arc control device, the closed type switch of this tank body Download PDFInfo
- Publication number
- CN204243598U CN204243598U CN201420642831.4U CN201420642831U CN204243598U CN 204243598 U CN204243598 U CN 204243598U CN 201420642831 U CN201420642831 U CN 201420642831U CN 204243598 U CN204243598 U CN 204243598U
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- tank body
- solid insulation
- insulation cover
- face
- internal face
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Abstract
The utility model discloses a kind of tank body and use arc control device, the closed type switch of this tank body.In arc control device, solid insulation cover can be filled in tank body body from loading port, be in solid insulation cover to make connecing electric main body, and solid insulation cover is by between the internal face of give vent to anger position and tank body body being located at blowout side, and the internal face of solid insulation cover is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate.In use, the insulating gas that the spout of driven power connection end ejects is to after the high-voltage arc arc extinguishing in fracture, go out from the blowout side spray connect electric main body, now not only flow velocity and temperature are still higher for insulating gas, and some metallic dusts and ionization analyte will be mingled with, now the mist of high temperature and high speed will collide on the baffling-face of fixed solid insulating case, thus avoids the mist gone out from blowout side spray to the impact erosion of the internal face of tank body body.
Description
Technical field
The utility model relates to a kind of tank body and uses arc control device, the closed type switch of this tank body.
Background technology
In switchgear, customary insulation mode is divided into gas-insulated and fixed insulation, gas isolated mode is filled with sulfur hexafluoride gas, nitrogen etc. in arc control device, the mode of solid insulation is in arc control device, arrange polytetrafluoroethylene, electroporcelain material, glass fabric, resin material etc., and in the insulation against ground of metal enclosed switchgear, generally adopt gas isolated mode, its advantage is that the form of gas is not fixed, especially adopt the switchgear of air blowing arc extinguishing, gas-insulated plays the effect of arc extinguishing especially.But no matter gas-insulated adopts sulfur hexafluoride gas or nitrogen, its dielectric strength is all lower than the fixed insulation material in fixed insulation, and the variable effect of temperature, pressure, element ablation in the tank body that the insulation property of insulating gas can be subject to metal enclosed switchgear, cause metal enclosed switchgear under equal electric pressure, adopt gas isolated tank body larger than adopting the tank body external diameter of open type switchgear.
When metal enclosed switchgear carries out cut-offfing action, insulating gas is spurted to quiet power connection end from the dynamic power connection end of arc control device, the electric arc that insulating gas will be blown out between static arc contact and moving arcing contact, and the cooling duct flowed through in fixed contact pedestal---air side of the open type on fixed contact pedestal periphery or flow through the surface of the static arc contact---air side of the open type on static arc contact periphery, the internal face injecting directly on tank body carries out baffling.But because of dynamic, between static connection end, high-temperature electric arc can heat insulating gas, make the pressure increase of insulating gas, insulating capacity declines, and the dynamic power connection end of arc control device utilizes mechanical system manufacture pressure differential or utilize arc control device pressure itself difference to carry out arc extinguishing, the quiet power connection end simultaneously high-temperature insulation gas being blowed to arc control device cools, so in the gas-cooled process of high-temperature insulation, the element of the quiet power connection end of gas meeting ablation arc control device, to produce a certain amount of metallic dust and ionization analyte in the gas channel of quiet power connection end, the insulating gas of this part dust Sum decomposition thing and not thoroughly cooling will directly be jetted on the internal face of tank body from the air side on quiet power connection end, the dust Sum decomposition thing be mixed in insulating gas can burn and corrode the tank skin of tank body, so that the internal face of tank body is uneven, heavy then arc control device will be caused to puncture over the ground or discharge, so Cubicle Gas-Insulated Switchgear needs to reduce insulating gas temperature by extending the quiet end gas channel of arc control device usually.
But gas channel to be extended in limited space, deflection plate can only be increased in cooling duct in the quiet power connection end of arc control device, the effect of deflection plate is also limited, when the tank body internal diameter of Cubicle Gas-Insulated Switchgear narrows down to a certain degree, insulation against ground will become very responsive, as long as there is the reduction of some insulation property, will cause discharging over the ground or puncturing, now have no baffle plate will affect not quite the insulation property of whole arc control device.
And along with the progress of society, the continuous increase of the density of population, the requirement of modern society to the utilance in space also improves thereupon, so that the demand that market reduces the overall dimension of metal enclosed switchgear is more and more higher, as in electrical network requirement of invitation for bid, the width of 252kV three-phase phase-splitting metal enclosed switchgear is down to 1500mm from initial 2300mm, it is such as the circuit breaker of dielectric with sulfur hexafluoride gas, if the diameter itself of arc control device does not reduce, the tank diameter of metal enclosed switchgear has dropped to a limit, if reduce tank diameter further, only have and increase insulating gas pressure in tank body, but this method not only wastes gas, but also have impact to the safety of metal enclosed switchgear, improve design pressure after all, not only material cost will be increased, but also need more high-grade authentication of professional qualification.
Utility model content
The purpose of this utility model is to provide a kind of tank body avoiding internal face to be impacted the high-voltage switch gear arc control device of burning by the insulating gas of high temperature, additionally provides a kind ofly use the arc control device of this tank body and use the closed type switch of these arc control device simultaneously.
In order to realize above object, in the utility model, the technical scheme of tank body is as follows:
Tank body, comprise for holding dynamic, the tank body body of what quiet power connection end was assembled relatively the connect pipe box shape of electric main body, be equipped with for every being located at the solid insulation cover between outer peripheral face and the internal face of tank body body connecing electric main body in tank body body, the internal face of solid insulation cover is prevent the insulating gas that and the baffling-face of baffling commutation for intercepting from the blowout side spray connecing electric main body, the outside wall surface of solid insulation cover is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body at least one for bore be not less than solid insulation cover external diameter, the intrinsic loading port of tank body is inserted to for solid insulation cover.
The thermal endurance class of the inwall of solid insulation cover is not less than C level.
The two-port one of tank body body is loading port, is provided with the limited step of projection on tank body inner body wall face between another and solid insulation cover, and limited step limit block overlaps one end of loading port dorsad at solid insulation.
Be folded with end face tack coat between the opposite face of limited step and solid insulation cover, solid insulation cover is adhesively fixed on limited step by end face tack coat.
Be folded with side face tack coat between the outside wall surface of solid insulation cover and the internal face of tank body body, solid insulation cover is adhesively fixed on the internal face of tank body body by side face tack coat.
The technical scheme of arc control device of the present utility model is as follows:
Arc control device, comprise tank body, the tank body body of tank body is pipe box shape, be provided with in tank body body by moving, what quiet power connection end was assembled relatively connects electric main body, the periphery connecing electric main body is provided with and blows to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, be equipped with every being located at the solid insulation cover between outer peripheral face and the internal face of tank body body connecing electric main body in tank body body, the internal face of solid insulation cover is prevent the insulating gas that and the baffling-face of baffling commutation for intercepting from blowout side spray, the outside wall surface of solid insulation cover is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body at least one for bore be not less than solid insulation cover external diameter, the intrinsic loading port of tank body is inserted to for solid insulation cover.
The two ends of solid insulation cover are stretched out from the two ends connecing electric main body.
The two-port one of tank body body is loading port, is provided with the limited step of projection on tank body inner body wall face between another and solid insulation cover, and limited step limit block overlaps one end of loading port dorsad at solid insulation.
Solid insulation cover is adhesively fixed in tank body body.
The technical scheme of closed type switch of the present utility model is as follows:
Closed type switch, comprise the operating mechanism of arc control device and upper driving connection thereof, arc control device comprise tank body, the tank body body of tank body is pipe box shape, be provided with in tank body body by moving, what quiet power connection end was assembled relatively connects electric main body, the periphery connecing electric main body is provided with and blows to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, be equipped with every being located at the solid insulation cover between outer peripheral face and the internal face of tank body body connecing electric main body in tank body body, the internal face of solid insulation cover is prevent the insulating gas that and the baffling-face of baffling commutation for intercepting from blowout side spray, the outside wall surface of solid insulation cover is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body at least one for bore be not less than solid insulation cover external diameter, the intrinsic loading port of tank body is inserted to for solid insulation cover.
In the utility model, solid insulation cover can be filled in tank body body from loading port, the outside wall surface of being overlapped by solid insulation is coordinated with the internal face of tank body body and realizes locating, be in solid insulation cover to make connecing electric main body, and solid insulation cover is by between the internal face of give vent to anger position and tank body body being located at blowout side, and the internal face of solid insulation cover is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate.In use, the insulating gas that the spout of driven power connection end ejects is to after the high-voltage arc arc extinguishing in fracture, go out from the blowout side spray connect electric main body, now not only flow velocity and temperature are still higher for insulating gas, and some metallic dusts and ionization analyte will be mingled with, now the mist of high temperature and high speed will collide on the baffling-face of fixed solid insulating case, this baffling-face will play the effect of containment by the mist powerful to wind-force, to make the energy of mist be released by collision effect, thus avoid the mist gone out from blowout side spray to the impact erosion of the internal face of tank body body.Simultaneously, solid insulation overlaps the dielectric strength not only can strengthened in arc control device, and when the baffling-face of the continuous colliding solid insulating case of mist, even if baffling-face becomes uneven, also the electric field at residing position can be made to keep stable because the internal face of tank body body keeps complete, thus avoid and connect electric main body and occur in blowout side the problem that the tank skin of the tank body body caused by electric field change is breakdown.
Accompanying drawing explanation
Fig. 1 is the structural representation of arc control device in the embodiment 1 of closed type switch of the present utility model;
Fig. 2 is the structural representation of arc control device in the embodiment 2 of closed type switch of the present utility model.
Embodiment
The embodiment 1 of closed type switch in the utility model: as shown in Figure 1, this closed type switch is a kind of primary cut-out, comprise the operating mechanism of arc control device and upper driving connection thereof, the structure of operating mechanism belongs to prior art, and arc control device are formed primarily of tank body, dynamic power connection end 2 and quiet power connection end 4.Tank body is again overlap 5 by tank body body 3 and solid insulation to form, tank body body 3 is the pipe box body extended in left-right direction, the coaxial setting that dynamic power connection end 2 is relative with quiet power connection end 4 left and right in tank body body 3 and form that left and right extends connect electric main body, and offer the blowout side 6 of downward opening outlet type in the position, bottom side of the outside wall surface of quiet power connection end 4.Solid insulation cover 5 be sleeved on connect electric main body periphery on, the two ends of solid insulation cover 5 are stretched out from the two ends connecing electricity, the internal face of solid insulation cover 5 is baffling-face, together with the outside wall surface of solid insulation cover 5 is adhesively fixed with the internal face matched in clearance of tank body body 3 and by side face tack coat 7 between the two.The left port of tank body body 3 is provided with the outward flange 10 of projection in outside wall surface, right output port is provided with the inner flange 8 of projection on internal face, outward flange 10 and inner flange 8 are respectively fitted with the end cap be sealed in tank body body two-port, to make the left port of tank body body 3 for the bore loading port equal with endoporus aperture, the right output port of tank body body 3 is the little spacing reducing in relative aperture endoporus aperture, such solid insulation cover can be inserted in tank body body 3 from the loading port of the left end of tank body body 3, and slide into quiet power connection end 4 present position place along the internal face of tank body body 3.
The inner flange 8 of tank body body 3 right-hand member forms the spacing ring of projection in the inner side of internal face, the spacing right-hand member at solid insulation cover 5 of this spacing ring block and stop solid insulation to overlap 5 to deviate from from the right output port of tank body body 3, namely the two ends of solid insulation cover 5 flush respectively in the relative side ring end face of inner flange 8 with outward flange 10.
Tank body body 3 is metal can, the top of tank body body 3 is provided with the moved end wire hole that connects dynamic power connection end 2 respectively and is connected quiet the quiet of power connection end 4 and brings out string holes, moved end wire hole and the quiet Flange joint respectively that to bring out in string holes have insulating basin 1, and offering at the top of solid insulation cover 5 perforation passed for the wiring construction moving terminals 2 and quiet terminals 4, the aperture of this perforation is consistent with the aperture of wire hole.
Solid insulation cover 5 is except employing polytetrafluoroethylene material, also the high temperature insulating materials such as ceramic material can be adopted, this type of material is after running into high-temperature hot air-flow, insulation property can not be reduced because of the change of temperature, and solid insulation cover 5 also can be that multi-layer material is composited, its objective is the electric field utilizing dielectric difference of unlike material to improve quiet power connection end 4 periphery to manufacture electric capacity, but the baffling-face of solid insulation cover 5 must be high-temperature insulation material, and namely residing for baffling-face, the thermal endurance class of layer is not less than C level.The situation that insulation property reduce can be there is in the insulating gas of quiet power connection end 4 periphery in high-temperature electric arc heating, and the baffling-face of solid insulation cover 5 covers the side-lower of giving vent to anger of quiet power connection end 4, to make the thermal current of discharging from quiet power connection end 4 stop by the baffling-face of solid insulation cover 5, the high-temperature insulation gas being mingled with metallic dust and ionization analyte is avoided to inject directly on the internal face of tank body body 3.Set solid insulation cover 5 thickness time, due to solid insulation cover 5 dielectric strength depend on its material and thickness, for this reason ad hoc determine following steps to calculate solid insulation overlap 5 thickness:
Account form one: 1, according to insulating gas under the impact of thermal current, losing insulating capacity is completely basis;
2, by calculating or test method, know that arc control device are not before installing solid insulation cover 5 additional, arc control device are by the minimum insulation distance of thunder and lightning and power frequency insulating test over the ground;
3, according to the minimum insulation distance in step 2, calculate the thickness of the solid insulation cover 5 needed in tank body body 3, but because the dielectric strength of solid insulation material is different, so in foundation step 2, the thickness of the solid insulation cover 5 that insulation distance calculates can change along with the difference of material.
Account form two: 1, by calculate or test method, know arc control device do not install additional insulation resistance to ablation layer before, arc control device are by the insulation distance of type approval test;
2, according to minimum insulation distance in step 1, the minimum insulation distance with not installing the resistance to ablation layer that insulate in mode one additional, compares, and calculates the thickness of the solid insulation cover 5 needed in circuit breaker.
Therefore pass-through mode two can reduce the diameter of tank body body 3 to greatest extent.
Because all solids insulating material is different according to production technology, also great changes have taken place for self dielectric strength, so the present embodiment only specifies the referential data of some conventional solid insulating material, suppose, the dielectric strength of sulphur hexafluoride is 1, according to calculation and test, the dielectric strength of epoxy resin is 4-6, the dielectric strength of sulphurated siliastic is 3-4, and the dielectric strength of polytetrafluoro is 2-3, and the dielectric strength of porcelain insulating material is 5-7.
When assembling these arc control device, solid insulation can be overlapped 5 can load from the left port of tank body body 3, and by apply on the internal face of tank body body 3 adhesive linkage 7 and by solid insulation cover 5 be fixed on assigned address or by solid insulation cover 5 outer peripheral face on apply adhesive linkage 7 and make adhesive linkage 7 in company with solid insulation cover 5 enter together in tank body body 3 realize solid insulation cover 5 position fix, after solid insulation cover 5 assembles, again dynamic power connection end 2 and quiet power connection end 4 are assemblied in tank body body 3, and realize the encapsulation of arc control device by end cap 9 and insulating basin 1.
The embodiment 2 of closed type switch in the utility model: the difference of the present embodiment and embodiment 1 is, as shown in Figure 2, the right-hand member top pressure block of solid insulation cover 25 is in the left side of spacing ring, namely the right-hand member top pressure block of solid insulation cover 25 is in the left side of inner flange 28, and between inner flange 28 and solid insulation cover 25, be provided with the end face adhesive linkage 27 of annular, the aperture of the endoporus aperture of end face adhesive linkage 27 and solid insulation cover 25 is equal, and the solid insulation cover outside wall surface of 25 and the internal face interference fit of tank body body 23, overlap 25 to make solid insulation to be adhesively fixed on inner flange 28 by end face adhesive linkage 27.Like this when solid insulation cover 25 is loaded tank body body 23 by needs, after both formerly end face tack coat 27 can being coated in the left ring end face of inner flange 28, then solid insulation cover 25 is filled in tank body body 23 carrying out position and fix; Behind right side end face adhesive linkage 27 being coated in solid insulation cover 25, then end face adhesive linkage 27 can be filled in tank body body 23 together in company with solid insulation cover 25 again, until solid insulating layer 27 top is pressed on inner flange 28.
In the above-described embodiments, solid insulation cover is adhesively fixed on the internal face of tank body body by adhesive linkage, in other embodiments, solid insulation cover also can directly swelling be assemblied on the internal face of tank body body, i.e. the outside wall surface of solid insulation cover and the internal face interference fit of tank body body.
In the above-described embodiments, the blowout side on quiet power connection end is the aperture being in its position, bottom side, and in other are implemented, this blowout side also can be the opening etc. of the notch form that the periphery open spaces of fixed contact or quiet power connection end are offered.
In the above-described embodiments, the bore of the loading port of tank body body is equal with the endoporus aperture of tank body body, the external diameter that overlaps than solid insulation is bigger or equal, and in other embodiments, this loading port also can be the enlarging more much larger than the endoporus aperture of tank body body.
In the above-described embodiments, loading port is in the left end of tank body body, in other embodiments, loading port also can be in right-hand member or the two ends of tank body body, now solid insulation is enclosed within tank body body and the fixing mode of side face can only be adopted to position, as side face swelling mode, side face bonding way etc.
In the above-described embodiments, at tank body body right-hand member by inner flange block solid insulation cover, in other embodiments, the limited step of spacing ring type that this inner flange is formed on the internal face of tank body body also can be replaced by the limited step of the form such as projection shape, semi-circular of projection on the internal face of tank body body.
The embodiment of arc control device in the utility model: in the present embodiment, the structure of arc control device is identical with the structure of arc control device in above-mentioned enforcement, therefore repeats no more.
The embodiment of tank body in the utility model: in the present embodiment, the structure of tank body is identical with the structure of tank body in above-described embodiment, therefore repeats no more.
Claims (10)
1. tank body, comprise for holding dynamic, the tank body body of what quiet power connection end was assembled relatively the connect pipe box shape of electric main body, it is characterized in that, be equipped with for every being located at the solid insulation cover between outer peripheral face and the internal face of tank body body connecing electric main body in tank body body, the internal face of solid insulation cover is prevent the insulating gas that and the baffling-face of baffling commutation for intercepting from the blowout side spray connecing electric main body, the outside wall surface of solid insulation cover is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body at least one for bore be not less than solid insulation cover external diameter, the intrinsic loading port of tank body is inserted to for solid insulation cover.
2. tank body according to claim 1, is characterized in that, the thermal endurance class of the inwall of solid insulation cover is not less than C level.
3. tank body according to claim 1, it is characterized in that, the two-port one of tank body body is loading port, is provided with the limited step of projection on tank body inner body wall face between another and solid insulation cover, and limited step limit block overlaps one end of loading port dorsad at solid insulation.
4. tank body according to claim 3, is characterized in that, be folded with end face tack coat between the opposite face of limited step and solid insulation cover, solid insulation cover is adhesively fixed on limited step by end face tack coat.
5. tank body as claimed in any of claims 1 to 4, is characterized in that, be folded with side face tack coat between the outside wall surface of solid insulation cover and the internal face of tank body body, solid insulation cover is adhesively fixed on the internal face of tank body body by side face tack coat.
6. arc control device, comprise tank body, the tank body body of tank body is pipe box shape, be provided with in tank body body by moving, what quiet power connection end was assembled relatively connects electric main body, the periphery connecing electric main body is provided with and blows to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, it is characterized in that, be equipped with every being located at the solid insulation cover between outer peripheral face and the internal face of tank body body connecing electric main body in tank body body, the internal face of solid insulation cover is prevent the insulating gas that and the baffling-face of baffling commutation for intercepting from blowout side spray, the outside wall surface of solid insulation cover is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body at least one for bore be not less than solid insulation cover external diameter, the intrinsic loading port of tank body is inserted to for solid insulation cover.
7. arc control device according to claim 6, is characterized in that, the two ends of solid insulation cover are stretched out from the two ends connecing electric main body.
8. arc control device according to claim 6, it is characterized in that, the two-port one of tank body body is loading port, is provided with the limited step of projection on tank body inner body wall face between another and solid insulation cover, and limited step limit block overlaps one end of loading port dorsad at solid insulation.
9. the arc control device according to claim 6 or 7 or 8, it is characterized in that, solid insulation cover is adhesively fixed in tank body body.
10. closed type switch, comprise the operating mechanism of arc control device and upper driving connection thereof, arc control device comprise tank body, the tank body body of tank body is pipe box shape, be provided with in tank body body by moving, what quiet power connection end was assembled relatively connects electric main body, the periphery connecing electric main body is provided with and blows to the open type of the internal face of tank body body or the blowout side of open type for the insulating gas after arc extinguishing, it is characterized in that, be equipped with every being located at the solid insulation cover between outer peripheral face and the internal face of tank body body connecing electric main body in tank body body, the internal face of solid insulation cover is prevent the insulating gas that and the baffling-face of baffling commutation for intercepting from blowout side spray, the outside wall surface of solid insulation cover is the fitting surface coordinated with the internal face of tank body body, and in the two-port of tank body body at least one for bore be not less than solid insulation cover external diameter, the intrinsic loading port of tank body is inserted to for solid insulation cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642831.4U CN204243598U (en) | 2014-10-31 | 2014-10-31 | Tank body and use arc control device, the closed type switch of this tank body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642831.4U CN204243598U (en) | 2014-10-31 | 2014-10-31 | Tank body and use arc control device, the closed type switch of this tank body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243598U true CN204243598U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642831.4U Expired - Fee Related CN204243598U (en) | 2014-10-31 | 2014-10-31 | Tank body and use arc control device, the closed type switch of this tank body |
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| Country | Link |
|---|---|
| CN (1) | CN204243598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362535A (en) * | 2014-10-31 | 2015-02-18 | 平高集团有限公司 | Tank, arc extinguish chamber using tank, and sealed switch device |
-
2014
- 2014-10-31 CN CN201420642831.4U patent/CN204243598U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362535A (en) * | 2014-10-31 | 2015-02-18 | 平高集团有限公司 | Tank, arc extinguish chamber using tank, and sealed switch device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20211031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |