CN100373513C - Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber - Google Patents
Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber Download PDFInfo
- Publication number
- CN100373513C CN100373513C CNB2006100238246A CN200610023824A CN100373513C CN 100373513 C CN100373513 C CN 100373513C CN B2006100238246 A CNB2006100238246 A CN B2006100238246A CN 200610023824 A CN200610023824 A CN 200610023824A CN 100373513 C CN100373513 C CN 100373513C
- Authority
- CN
- China
- Prior art keywords
- control ring
- flow control
- air
- current control
- air current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Breakers (AREA)
Abstract
The present invention relates to a motion mechanism suitable for an air current control ring of an arc extinguishing chamber of an ultra-high voltage circuit breaker, which belongs to the field of a high voltage circuit breaker in power transmission and transformation engineering. The motion mechanism comprises a moving arc contact, an air current control ring, a piston, a big spring, an axial small groove, an inclined wedge, a small spring and a fixed pin. The present invention is characterized in that the piston is arranged between the inner wall and the moving arc contact of the arc extinguishing chamber of the high voltage circuit breaker, the inclined wedge is arranged in a wedge groove at the middle part of the moving arc contact, the right side of the inclined wedge is drilled with a pin hole connected with the fixed pin, the right side in the air current control ring is provided with a ring groove for placing the small spring, and the inner wall of the left front part of the ring groove is provided with the axial small groove; the big spring is arranged between the piston and the air current control ring to push the air current control ring to move. The motion mechanism makes the air current control and complete the specified motion under the actions of the big and the small springs and the inclined wedge and according to the requirements of the switching-on and the switching-off of the circuit breaker so as to achieve the purpose of improving the arc extinguishing performance of the ultra-high voltage circuit breaker. The present invention has the advantages of simple structure, easy fabrication, low cost, stable and reliable motion of the air current control ring and important practicability.
Description
Technical field
The present invention relates to the project of transmitting and converting electricity primary cut-out, refer to a kind of motion of extra high voltage circuit breaker arc control device air-flow control ring especially.
Background technology
For satisfying the needs of electric utility development, China's electrical network just develops towards the high voltage large capcity direction, and extra high voltage circuit breaker is the visual plant in the network system.Yet China compares with world level and also to have certain gap in the superhigh pressure field.One of bottleneck of restriction China extra high voltage circuit breaker exploitation is that the arc extinguishing Study on Technology is relatively lagged behind, and particularly extra high voltage circuit breaker is with SF
6The gas blast arc-quenching mode is main, and the electric pressure of this circuit breaker is high more, and the electric arc between fracture is difficult extinguishing more just.
As shown in Figure 1, superhigh pressure air-blowing arc-extinguishing chamber of circuit breaker is in the arc extinguishing process, and its air-flow is divided into two bundles during through stagnation point (5), a branch ofly blows to quiet arc contact (4) along electric arc, and another bundle blows in moving arcing contact (1) chamber.Because arc length from stagnation point to the quiet arc contact generally is about 10/1 with ratio to the arc length of moving arcing contact, its result makes the electric arc heat radiation of dynamic and static contact both sides irregular, have a strong impact on arc quenching effect, this is the long-term insurmountable difficult problem of arc control device of fixed structure.
(patent No.: propose 200420107531.2): at the indoor air-flow control ring (2) that is provided with of breaker arc extinguishing is an innovative design that improves extra high voltage circuit breaker arc extinguishing ability to the inventor in patent " the air-flow control rings of primary cut-out arc control device ", this control ring is sleeved on the moving arcing contact (1), in circuit breaker actuating process, can move with respect to moving arcing contact according to certain rules, dynamically control the position of stagnation point (5), the two bundle air-flows that flow to dynamic and static arcing contact are fully utilized, have improved the arc extinguishing ability of circuit breaker effectively.Patent of the present invention has proposed to realize the concrete grammar of air-flow control ring kinetic characteristic, and has further proposed the concrete structure of air-flow control ring actuating on this basis.
Summary of the invention
The purpose of this invention is to provide and a kind ofly be intended to implement method and the motion that primary cut-out arc control device air-flow control ring is finished compulsory exercise, make the arc extinguishing ability that the air-flow control ring improves extra high voltage circuit breaker is set in the arc control device.
Technical scheme of the present invention is to have improved structural design in an enterprising step of original breaker arc extinguishing chamber base, makes the arc extinguishing ability stronger.Motion of the present invention comprises moving arcing contact, air-flow control ring, piston, big spring, axial sulculus, wedge, little spring and steady pin.Wherein, a piston is arranged between primary cut-out arc control device inwall and the moving arcing contact; In the wedge groove at moving arcing contact middle part, be placed with wedge, at its right-hand pin-and-hole that is connected with steady pin that is drilled with; The right-hand annular groove of placing little spring that has in the air-flow control ring, the left inside wall of air-flow control ring has the axial sulculus that prevents that the air-flow control ring from rotating; Device has big spring between piston and air-flow control ring, to promote the motion of air-flow control ring.A return spring is placed in the wedge bottom in the wedge groove at moving arcing contact middle part.During working motion, circuit breaker is when closing a floodgate, and the air-flow control ring advances with moving arcing contact and moves to right; During separating brake, the air-flow control ring retreats (moving to left) to the precalculated position with moving arcing contact earlier, subsequently with respect to moving arcing contact (moving to right) propelling in the other direction; When closing a floodgate once more, wedge enters in the wedge groove, and air-flow control ring and moving arcing contact are become one, the next duty cycle of setting in motion mechanism.
Superior effect of the present invention is: making simple in structure is easy, and cost is low, and air-flow control ring motion is steadily reliable, makes at arc control device the air-flow control ring to be set and to improve the arc extinguishing ability that superhigh pressure opens circuit.
Description of drawings
Fig. 1 is the air-flow control ring structure chart of the primary cut-out arc control device of prior art.
Structure of the present invention and motion process schematic diagram that Fig. 2 amplifies for Figure 1A portion, wherein:
Fig. 2 a is the combined floodgate stage;
Fig. 2 b is the separating brake incipient stage;
Fig. 2 c is the separating brake ending phase.
Label declaration in the accompanying drawing:
Prior art:
1-moving arcing contact; 2-air-flow control ring;
3-spout; 4-quiet arc contact;
5-stagnation point.
The present invention:
6-piston; 7-big spring;
8-axially sulculuses; 9-wedge;
10-little spring; 11-steady pin.
Embodiment
See also shown in accompanying drawing 2, a, b, the c, structure of the present invention and motion process thereof are described further below in conjunction with accompanying drawing.
The present invention has done to improve design on the existing structure basis, also comprise piston 6, big spring 7, axial sulculus 8, wedge 9, little spring 10 and steady pin 11, wherein, piston 6 is arranged between primary cut-out arc control device inwall and the moving arcing contact 1, promote gas flow in the cylinder, make gas produce certain pressure; Be provided with the wedge groove of placing wedge 9 at moving arcing contact 1 middle part, a spring is placed in wedge 9 bottoms in the wedge groove, wedge 9 is moved up and down, wedge 9 is links of determining moving arcing contact 1 and air-flow control ring relative motion characteristic, at its right-hand pin-and-hole that is connected with steady pin 11 that is drilled with, steady pin 11 can make little spring 10 location; At the air-flow control ring 2 inboard right-hand annular grooves of placing little spring 10 that have, little spring 10 makes and promotes 2 playback of air-flow control ring, have axial sulculus 8 in inboard left inside wall, wedge 9 activity space in air-flow control ring 2 can be provided, limit air-flow control ring 2 with respect to moving arcing contact 1 axially movable distance, and can prevent that the air-flow control ring from rotating; Between piston 6 and air-flow control ring 2, device has big spring 7, so that promote 2 motions of air-flow control ring.
During work, when breaker closing, shown in Fig. 2 a, the gas that flows in cylinder produces certain pressure, make moving arcing contact (1) push ahead (moving to right), be stuck in the wedge groove of air-flow control ring (2) by thereon wedge (9), it just is being with air-flow control ring (2) to advance together;
In the breaker open operation incipient stage, shown in Fig. 2 b, moving arcing contact (1) retreats (moving to left), because the amount of being compressed of big spring (7) is little, therefore the spring force that stops air-flow control ring (2) to retreat is also little, and moving arcing contact (1) gentle current control ring this moment (2) is synchronized with the movement;
When separating brake moves to the precalculated position, shown in Fig. 2 c, big spring (7) amount of being compressed increases to its spring force greater than the power that stops air-flow control ring (2) to retreat, the air-flow control ring is just depressed wedge (9), but still in axial sulculus (8) (this is in order to prevent that control ring from rotating), big spring (7) is pushed ahead the air-flow control ring, so produce relative motion between air-flow control ring (2) and moving arcing contact (1), under the effect of little spring (10), slow down the fltting speed of air-flow control ring, played the effect that the control airflow field distributes.
When closing a floodgate once more, moving arcing contact (1) advances, and the power of little spring (10) savings retreats air-flow control ring (2), wedge (9) is entered in the air-flow control annular groove and resets the two next duty cycle of beginning of moving together.
Claims (2)
1. the motion of a primary cut-out arc control device air-flow control ring comprises moving arcing contact (1), air-flow control ring (2), it is characterized in that:
One piston (6) is arranged between primary cut-out arc control device inwall and the moving arcing contact (1);
In the wedge groove at moving arcing contact (1) middle part, be placed with wedge (9), at its right-hand pin-and-hole that is connected with steady pin (11) that is drilled with;
The right-hand annular groove of placing little spring (10) that has in air-flow control ring (2), the left inside wall of air-flow control ring (2) has the axial sulculus (8) that prevents that air-flow control ring (2) from rotating;
Device has big spring (7) between piston (6) and air-flow control ring (2), to promote the motion of air-flow control ring.
2. the motion of primary cut-out arc control device air-flow control ring according to claim 1 is characterized in that:
A return spring is placed in wedge (9) bottom in the wedge groove at moving arcing contact (1) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100238246A CN100373513C (en) | 2006-02-10 | 2006-02-10 | Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100238246A CN100373513C (en) | 2006-02-10 | 2006-02-10 | Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1808659A CN1808659A (en) | 2006-07-26 |
| CN100373513C true CN100373513C (en) | 2008-03-05 |
Family
ID=36840485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100238246A Expired - Fee Related CN100373513C (en) | 2006-02-10 | 2006-02-10 | Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100373513C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2629054A1 (en) * | 1976-06-29 | 1978-01-05 | Licentia Gmbh | Gas blast circuit breaker - is of small overall dimensions and has slot acting as valve between cylinder and piston |
| CN2755765Y (en) * | 2004-10-29 | 2006-02-01 | 同济大学 | Airflow control ring of high-voltage breaker arc chute chamber |
-
2006
- 2006-02-10 CN CNB2006100238246A patent/CN100373513C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2629054A1 (en) * | 1976-06-29 | 1978-01-05 | Licentia Gmbh | Gas blast circuit breaker - is of small overall dimensions and has slot acting as valve between cylinder and piston |
| CN2755765Y (en) * | 2004-10-29 | 2006-02-01 | 同济大学 | Airflow control ring of high-voltage breaker arc chute chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1808659A (en) | 2006-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1182557C (en) | Mixed circuit switch | |
| CN204680616U (en) | A kind of efficient arc extinguishing vacuum circuit-breaker | |
| CN101300654B (en) | Current interrupter device having a double compression chamber | |
| CN104332345B (en) | A kind of ultrahigh speed mechanical switch and its switch fracture and its switch contact | |
| CN104347304A (en) | Ultra-high-speed mechanical switch | |
| CN106128852A (en) | A kind of arc-chutes and use the chopper of these arc-chutes | |
| CN104319168B (en) | Interrupter assembly and porcelain knob-type sulphur hexafluoride circuit breaker | |
| CN102426975A (en) | Permanent magnetic operation mechanism | |
| CN100373513C (en) | Moving mechanism of air flow control ring of high-voltage arc-extinguish chamber | |
| CN201773724U (en) | Structure of self energy type arc extinguishing chamber | |
| CN202454479U (en) | 1100kV extra-high-voltage series-compensation by-pass switch | |
| CN204332796U (en) | Ultrahigh speed mechanical switch | |
| CN209691678U (en) | A kind of double acting arc-chutes of self extinguishing type | |
| CN101599391B (en) | Novel single-fracture single-cylinder self energy high pressure sulfur hexafluoride breaker arc extinguish chamber | |
| JPS62276717A (en) | Buffer type gas breaker | |
| CN202473642U (en) | Bistable dissymmetrical permanent magnet operating mechanism | |
| CN110797217B (en) | Quick mechanical switch and switch fracture thereof | |
| CN103489704B (en) | A kind of vacuum circuit breaker operating device | |
| CN202339884U (en) | Permanent operating mechanism | |
| CN202094043U (en) | Moving contact assembly and electromagnetic isolation driving intelligent switch using same | |
| CN103367027A (en) | Circuit breaker | |
| CN110853973B (en) | Large-current direct-current vacuum contact structure and application thereof | |
| CN108807045B (en) | Contact magnetic blow-out method of electromagnetic repulsion switch and switch system | |
| CN112490063A (en) | Direct-acting type rapid direct-current circuit breaker | |
| CN112002605A (en) | Switch device and arc extinguish chamber thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20110210 |