CN203536277U - A valve hall grounding switch - Google Patents
A valve hall grounding switch Download PDFInfo
- Publication number
- CN203536277U CN203536277U CN201320680299.0U CN201320680299U CN203536277U CN 203536277 U CN203536277 U CN 203536277U CN 201320680299 U CN201320680299 U CN 201320680299U CN 203536277 U CN203536277 U CN 203536277U
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- piston
- cylinder
- pedestal
- ground connection
- cylinder body
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 abstract description 20
- 230000009466 transformation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model relates to DC power transmission and transformation equipment field and especially to a valve hall grounding switch. The valve hall grounding switch comprises a grounding conductive rod and a top transmission pedestal. One end of the grounding conductive rod is in rotatable cooperation with the top transmission pedestal. A rotating axis on the end portion of the grounding conductive rod is extended left and right. The valve hall grounding switch also comprises a driving mechanism used for driving the grounding conductive rod to rotate about the rotating axis and swing back and forth relative to a valve hall wall surface. A bottom transmission pedestal is fixedly disposed under the top transmission pedestal. The driving mechanism comprises a piston cylinder supported between the bottom transmission pedestal and a grounding knife bar. The piston cylinder comprises a cylinder body and a piston rod. The bottom of the cylinder body is hinged to the bottom transmission pedestal. The rotating axis on the bottom of the cylinder body is extended left and right. One end of the piston rod is inserted into the cylinder body, while the other end of the piston rod is hinged to the middle of the grounding conductive rod. The valve hall grounding switch achieves first order transmission with the piston cylinder, has advantages of simple structure and low production cost, and can be used in +/-1100V UHVDC power transmission engineering.
Description
Technical field
The utility model relates to DC power transmission equipment field, relates in particular to a kind of valve Room earthed switch.
Background technology
At present, domestic, direct-current wall bushing in the outer HVDC Converter Stations valve Room, the valve Room earthed switch as disclosed in Chinese patent CN 102832074 A " straight-wavy valve Room earthed switch " that the DC switch equipments such as converter transformer bushings adopt, its minute, making process adopts the mechanical drive modes such as bevel gear and space four-links, in order to overcome the assembling minute of ground connection conducting rod, gravity in making process, normal employing on the power transmission shaft of base assembling installed balancing weight, be used for balance ground connection conducting rod assembling minute, the gravitational moment of making process, reduce the operating physical force of mechanism.
Along with the raising of DC transmission engineering electric pressure, for example unprecedented " ± 1100 extra-high voltage direct-current transmission engineering ", yet also do not have at home, outward at present producer develop with above-mentioned valve Room DC switch equipment supporting ± 1100kV valve Room earthed switch.If adopt existing valve Room earthed switch, there will be following problem: due to the lengthening of ground connection conducting rod length, the gravitational moment producing in its minute, making process will be multiplied, if adopt the mechanical drive modes such as original bevel gear and space four-links, transmission progression will increase, it is complicated that structure also can become, and cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of valve Room earthed switch that adopts Fluid-transmission, to solve the baroque problem of existing Multi-stage transmission mechanism.
To achieve these goals, the utility model adopts following technical scheme: a kind of valve Room earthed switch, comprise ground connection conducting rod and for being arranged on the upper driving pedestal on metope top, the respective valve Room, one end of ground connection conducting rod and upper driving pedestal are rotatably assorted, extend the pivot center left and right of described ground connection conducting rod end, this switch also comprises for driving ground connection conducting rod around the driving mechanism of pivot axis relative valve Room metope swing, the below of upper driving pedestal is installed with for being arranged on the underdrive pedestal on the metope of the respective valve Room, described driving mechanism comprises the piston cylinder being supported between underdrive pedestal and ground connection knife bar, piston cylinder comprises cylinder body and piston rod, the bottom of cylinder body and underdrive pedestal are articulated and connected, extend the pivot center left and right of cylinder base, one end of piston rod is plugged in cylinder body, the other end is articulated with the middle part of ground connection conducting rod.
Piston cylinder is for adopting cylinder air-driven and that working media is air.
Valve Room earthed switch also comprises that operating-controlling mechanism comprises control element and air pump for the reciprocating operating-controlling mechanism of control piston bar, is provided with for carrying air pressure with the reciprocating appendix of control piston bar to cylinder body between operating-controlling mechanism and piston cylinder.
Piston cylinder is provided with the electromagnetically operated valve of control piston cylinder exhaust, and operating-controlling mechanism is electrically connected to electromagnetically operated valve.
The beneficial effects of the utility model: driving mechanism of the present utility model comprises piston cylinder, in piston cylinder, piston rod can repeatedly move along the Axis Extension direction of cylinder body under the driving of fluid pressure, high and the long service life of the intensity of piston rod, piston rod has supporting role to ground connection knife bar, thereby piston rod can directly drive ground connection conducting rod to rotate the Room metope swing of the relative valve of rotation axis and realize breaking-closing operating.Compared with prior art, valve of the present utility model Room earthed switch adopts piston cylinder to realize one-level transmission, and that this valve Room earthed switch has advantages of is simple in structure, production cost is low, in can be used for ± 1100 extra-high voltage direct-current transmission engineerings.
Further, piston cylinder is cylinder, and because piston cylinder adopts Pneumatic Transmission, its working media is air, and makes the utlity model has following characteristics: air obtains than being easier to, and the air after use can be discharged in atmosphere and go, and does not pollute the environment; The viscosity of air is very low, so flow resistance is very little, the pressure loss is little, is convenient to concentrate and far distance controlled; Pneumatic apparatus is converted to mechanical energy by the pressure energy of Compressed Gas, has advantages of that drive mechanism is simple, cost is low; Air-driven self-sustaining ability is strong, and the reliability high life is long, safe ready; The environmental factors such as the strong-electromagnetic field in the valve Room, high radiation, strong noise are less on the impact of gas.
Further, by operating-controlling mechanism, can realize the control to piston cylinder, this operating-controlling mechanism simple in structure and easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of a kind of valve of the present utility model Room earthed switch;
Fig. 2 is the left view of Fig. 1.
Embodiment
Embodiment 1 of the present utility model, as shown in Figure 1-2: a kind of valve Room earthed switch comprises ground connection conducting rod 3 and for being arranged on the upper driving pedestal 2 on metope top, the respective valve Room, one end of ground connection conducting rod 3 for corresponding moving contact is installed, conducting rod rotating shaft that the other end is installed with to be rotatably assorted with upper driving pedestal 2, conducting rod rotating shaft has the pivot center extending along left and right directions, and the middle part of ground connection conducting rod 3 is provided with for driving ground connection conducting rod 3 around the driving mechanism of the pivot axis of conducting rod rotating shaft relative valve Room metope swing.Ground connection conducting rod 3 has the axis of ground connection conducting rod 3 sub-gate position parallel with valve Room metope, axis and the approximately perpendicular closing position of metope, the valve Room of ground connection conducting rod 3.This driving mechanism comprises the piston cylinder 5 being supported between underdrive pedestal and ground connection knife bar, and piston cylinder 5 comprises cylinder body and the piston rod repeatedly moving for the Axis Extension direction along cylinder body.The below of underdrive pedestal 4 is installed with for being arranged on the underdrive pedestal 4 on the metope of the respective valve Room.The bottom of cylinder body is installed with the cylinder body rotating shaft being rotatably assorted with underdrive pedestal 4, cylinder body rotating shaft and conducting rod shaft parallel, and cylinder body rotating shaft has the pivot center extending along left and right directions.One end of piston rod is plugged in cylinder body, the other end is articulated with the middle part of ground connection conducting rod 3 by hinge 7.Valve Room earthed switch also comprises that this corresponding DC switch equipment is direct-current wall bushing or converter transformer bushings in the valve Room for being installed on fixed contact 1 on corresponding DC switch equipment, that insert for moving contact when the closing position.In the present embodiment, piston cylinder 5 adopts Pneumatic Transmission, and piston cylinder is cylinder, and its working media is air.Valve Room earthed switch also comprises that operating-controlling mechanism 9 comprises control element and air pump for the reciprocating operating-controlling mechanism 9 of control piston bar, is provided with for carrying air pressure with the reciprocating appendix 6 of control piston bar to cylinder body between operating-controlling mechanism 9 and piston cylinder 5.Piston cylinder 5 is provided with the electromagnetically operated valve of control piston cylinder exhaust, and operating-controlling mechanism 9 is electrically connected to electromagnetically operated valve, and operating-controlling mechanism is realized the control to piston cylinder 5 by electromagnetically operated valve.On upper driving pedestal 2 and underdrive pedestal 4, be equipped with for shielding the grading ring of non-uniform electric field.Valve Room earthed switch also comprises that to be arranged at valve Room wall basifacial for shielding when the sub-gate position near the shading ring 8 of the electric field moving contact on ground connection conducting rod 3.
The use procedure of above-described embodiment 1: during combined floodgate, the switch knob of operation operating-controlling mechanism 9, the gas with certain pressure enters the bottom of cylinder body along appendix 6, air pressure promotes the end of piston rod and steadily moves outside cylinder body, the end of piston rod swings forward promoting the ground connection conducting rod relative valve of 3 pivot center around conducting rod rotating shaft Room metope, until the moving contact on ground connection conducting rod 3 is inserted in fixed contact 1, thereby make valve Room earthed switch complete combined floodgate, move; During separating brake, the opening button of operation operating-controlling mechanism 9, the gas with certain pressure enters the end of cylinder body along appendix 6, the end that promotes piston rod is steadily moved in cylinder body, the end of piston rod will drive the ground connection conducting rod relative valve of 3 pivot center around conducting rod rotating shaft Room metope to swing backward, until ground connection conducting rod 3 is parallel to valve Room metope, thereby complete the separating brake motion of valve Room earthed switch.
In above-described embodiment 1, because piston cylinder 5 adopts Pneumatic Transmission, its working media is air, and makes the utlity model has following characteristics: air obtains than being easier to, and the air after use can be discharged in atmosphere and go, and does not pollute the environment; The viscosity of air is very low, so flow resistance is very little, the pressure loss is little, is convenient to concentrate and far distance controlled; Pneumatic apparatus is converted to mechanical energy by the pressure energy of Compressed Gas, has advantages of that drive mechanism is simple, cost is low; Air-driven self-sustaining ability is strong, and reliability is high, and the life-span is long, safe ready; The environmental factors such as the strong-electromagnetic field in the valve Room, high radiation, strong noise are less on the impact of gas.
Except above-described embodiment 1, in other embodiment of the present utility model, operating-controlling mechanism can also only include control element, do not comprise air pump, operating-controlling mechanism is an independently operating unit, source of the gas adopts air compressor house central gas supply, realizes whole current conversion station and shares a source of the gas, is convenient to realize centralized control.
Except above-described embodiment 1, in other embodiment of the present utility model, piston cylinder can also adopt hydraulic drive, and piston cylinder is hydraulic cylinder, and its working media is oil.
Claims (4)
1. a valve Room earthed switch, comprise ground connection conducting rod and for being arranged on the upper driving pedestal on metope top, the respective valve Room, one end of ground connection conducting rod and upper driving pedestal are rotatably assorted, extend the pivot center left and right of described ground connection conducting rod end, this switch also comprises for driving ground connection conducting rod around the driving mechanism of pivot axis relative valve Room metope swing, it is characterized in that: the below of upper driving pedestal is installed with for being arranged on the underdrive pedestal on the metope of the respective valve Room, described driving mechanism comprises the piston cylinder being supported between underdrive pedestal and ground connection knife bar, piston cylinder comprises cylinder body and piston rod, the bottom of cylinder body and underdrive pedestal are articulated and connected, extend the pivot center left and right of cylinder base, one end of piston rod is plugged in cylinder body, the other end is articulated with the middle part of ground connection conducting rod.
2. valve according to claim 1 Room earthed switch, is characterized in that: piston cylinder is for adopting cylinder air-driven and that working media is air.
3. valve according to claim 2 Room earthed switch, it is characterized in that: also comprise for the reciprocating operating-controlling mechanism of control piston bar, operating-controlling mechanism comprises control element and air pump, is provided with for carrying air pressure with the reciprocating appendix of control piston bar to cylinder body between operating-controlling mechanism and piston cylinder.
4. valve according to claim 3 Room earthed switch, is characterized in that: piston cylinder is provided with the electromagnetically operated valve of control piston cylinder exhaust, and operating-controlling mechanism is electrically connected to electromagnetically operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680299.0U CN203536277U (en) | 2013-10-31 | 2013-10-31 | A valve hall grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680299.0U CN203536277U (en) | 2013-10-31 | 2013-10-31 | A valve hall grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536277U true CN203536277U (en) | 2014-04-09 |
Family
ID=50422458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680299.0U Expired - Lifetime CN203536277U (en) | 2013-10-31 | 2013-10-31 | A valve hall grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536277U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617920A (en) * | 2013-10-31 | 2014-03-05 | 国家电网公司 | A valve hall ground switch |
| CN105185613A (en) * | 2015-07-31 | 2015-12-23 | 益和电气集团股份有限公司 | Automatic grounding switch |
| CN109119281A (en) * | 2018-09-04 | 2019-01-01 | 湖南长高高压开关有限公司 | A kind of folding-jib extra-high voltage direct-current valve hall earthing switch |
-
2013
- 2013-10-31 CN CN201320680299.0U patent/CN203536277U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617920A (en) * | 2013-10-31 | 2014-03-05 | 国家电网公司 | A valve hall ground switch |
| WO2015062383A1 (en) * | 2013-10-31 | 2015-05-07 | 国家电网公司 | Grounding switch for valve hall |
| CN103617920B (en) * | 2013-10-31 | 2016-03-09 | 国家电网公司 | Valve Room earthed switch |
| CN105185613A (en) * | 2015-07-31 | 2015-12-23 | 益和电气集团股份有限公司 | Automatic grounding switch |
| CN109119281A (en) * | 2018-09-04 | 2019-01-01 | 湖南长高高压开关有限公司 | A kind of folding-jib extra-high voltage direct-current valve hall earthing switch |
| CN109119281B (en) * | 2018-09-04 | 2020-08-18 | 湖南长高高压开关有限公司 | Folding arm type grounding switch of ultra-high voltage direct current valve hall |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
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| CX01 | Expiry of patent term |