CN207938516U - A kind of hyperbar control element - Google Patents
A kind of hyperbar control element Download PDFInfo
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- CN207938516U CN207938516U CN201721876223.XU CN201721876223U CN207938516U CN 207938516 U CN207938516 U CN 207938516U CN 201721876223 U CN201721876223 U CN 201721876223U CN 207938516 U CN207938516 U CN 207938516U
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Abstract
The utility model discloses a kind of hyperbar control elements, including piston, piston is equipped with annular groove, the bottom of groove is equipped with through-hole, threaded hole and the kidney slot to circulate for SF6 gases, be equipped in groove can two-way free movement plectane, can the plectane of two-way free movement be equipped with and the lead to the hole site of bottom portion of groove corresponding through-hole one by one, the top of groove is equipped with step, step be equipped with only can one-way movement pressure release plectane, only can one-way movement pressure release plectane top be equipped with fixed spring screw rod, the head of the screw rod of fixed spring sequentially passes through compressed spring, only can one-way movement pressure release plectane, can the plectane of two-way free movement be fixedly connected with threaded hole, the centre of piston is equipped with the circular hole for being connect with SF6 high-voltage circuitbreaker air cylinders.The utility model avoids in SF6 high-voltage circuitbreaker interrupting processes that SF6 air pressures are excessively high in air cylinder to be destroyed caused by air cylinder, avoids and is damaged to equipment and personnel, and reduces product cost.
Description
Technical field
The utility model is related to a kind of hyperbar control element more particularly to a kind of height of SF6 high-voltage circuitbreakers air cylinder
Pressure control element belongs to high-tension electricity equipment technical field.
Background technology
SF6 high-voltage circuitbreakers are the important equipments for ensureing safe operation of power system, and effect is normal for cut-offfing circuit
Load current and short-circuit current.The arc quenching principle of SF6 high-voltage circuitbreakers is to utilize air cylinder internal cause electric arc heated or piston
Compression and electric arc of the hyperbar SF6 gases between sound arcing contact that is formed carry out it is one-way or bi-directional brush, in current zero-crossing point
Dielectric insulation intensity between fast quick-recovery fracture achievees the purpose that extinguish electric arc.SF6 gas atmospheres are during arc extinguishing in air cylinder
Usual higher (1.0-3.0MPa), if air cylinder Intensity Design is weaker, high pressure SF6 gases are easily to air cylinder in air cylinder
It causes to be plastically deformed, can explode when serious, equipment and personnel are damaged.If by the mistake of air cylinder Intensity Design
By force, and the moving-mass of breaker itself can be increased and influence its speed characteristics, and material cost can be increased too much, without
Ji.
Invention content
The technical problems to be solved in the utility model is：One kind is provided to avoid damaging air cylinder, reduce product
The hyperbar control element of cost solves in SF6 high-voltage circuitbreaker interrupting processes, and the weak air cylinder of intensity easily causes plasticity change
Shape, the strong air cylinder of intensity can increase the moving-mass of breaker itself and influence its speed characteristics, uneconomic problem.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is there is provided a kind of hyperbar control element,
It is characterised in that it includes piston, piston is equipped with annular groove, and the bottom of groove is equipped with through-hole, threaded hole and is used for SF6 gases
The kidney slot of circulation, be equipped in groove can two-way free movement plectane, can the plectane of two-way free movement be equipped with and groove
The lead to the hole site of bottom corresponding through-hole one by one, the top of groove be equipped with step, step be equipped with only can one-way movement let out
Press plectane, only can the top of pressure release plectane of one-way movement be equipped with the screw rod of fixed spring, the head of the screw rod of fixed spring according to
It is secondary across compressed spring, only can one-way movement pressure release plectane, can the plectane of two-way free movement be fixedly connected with threaded hole, work
The centre of plug is equipped with the circular hole for being connect with SF6 high-voltage circuitbreaker air cylinders.
Preferably, the bottom portion of groove is equipped with the quantity at least 3 of through-hole, threaded hole and kidney slot.
Preferably, the through-hole of the bottom portion of groove is set to the outer ring of threaded hole.
Preferably, it is described can the outer ledge of plectane of two-way free movement be close to groove inner wall, two-way can freely transport
The centre of dynamic plectane is set there are one macropore, and the threaded hole of bottom portion of groove is set in macropore, can two-way free movement plectane
Internal diameter be less than only can one-way movement pressure release plectane maximum outside diameter.
Preferably, it is described can two-way free movement plectane between bottom portion of groove one by one corresponding through-hole by solid
Surely can two-way free movement plectane screw rod connection.
Preferably, the compressed spring be set to fixed spring screw rod tail portion with only can one-way movement pressure release plectane
Between.
Preferably, the two-way free movement circle plate thickness be 2mm-4mm, only can one-way movement pressure release circle plate thickness
For 2mm-4mm.
Preferably, the compressed spring is made of the spring steel wire of line footpath 2mm-4mm.
Preferably, the two-way free movement plectane and only can one-way movement pressure release plectane be all made of flatness it is high and
On-deformable high-quality steel makes, and piston is made using high-strength light aluminum.
The utility model avoids in SF6 high-voltage circuitbreaker interrupting processes that SF6 air pressures are excessively high in air cylinder may be to calming the anger
Destruction, avoids and is damaged to equipment and personnel, and reduce product cost, improve its economy caused by cylinder.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of hyperbar control element；
Fig. 2 is a kind of subdivision graph of hyperbar control element；
Fig. 3 is the schematic diagram of piston；
Fig. 4 is the schematic diagram of SF6 high-voltage circuitbreaker air cylinders.
Specific implementation mode
To make the utility model be clearer and more comprehensible, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
Embodiment 1
The utility model is a kind of hyperbar control element, is applied in SF6 gas high pressure breakers.Such as Fig. 1-Fig. 3 institutes
Show comprising one have multiple steps and 10, one, the piston in multiple holes can the plectane 20, one of two-way free movement only can be single
It can two-way free movement to the screw rod 50 of the fixed spring of compressed spring 40, three of pressure release plectane 30, three of movement and fixation
Plectane screw rod 60.
Piston 10 is equipped with annular groove, and the bottom of groove is equipped with through-hole, threaded hole and the kidney-shaped for the circulation of SF6 gases
Hole, be equipped in groove can two-way free movement plectane 20, can the plectane 20 of two-way free movement be equipped with and bottom portion of groove
Lead to the hole site corresponding through-hole one by one, the top of groove are equipped with step, step be equipped with only can one-way movement pressure release plectane
30, only can one-way movement pressure release plectane 30 top be equipped with fixed spring screw rod 50, the head of the screw rod 50 of fixed spring
Sequentially pass through compressed spring 40, only can one-way movement pressure release plectane 30, can two-way free movement plectane 20 and threaded hole it is solid
Fixed connection, the centre of piston 10 are equipped with the circular hole for being connect with SF6 high-voltage circuitbreaker air cylinders.The through-hole of bottom portion of groove is all provided with
In the outer ring of threaded hole.
Can the outer ledge of plectane 20 of two-way free movement be close to groove inner wall, can two-way free movement plectane 20
Centre is set there are one macropore, and the threaded hole of bottom portion of groove is set in macropore, can two-way free movement plectane 20 internal diameter it is small
In only can one-way movement pressure release plectane 30 maximum outside diameter.
Can two-way free movement plectane 20 between bottom portion of groove one by one corresponding through-hole by fixation can it is two-way from
It is connected by the screw rod 60 of the plectane moved.Compressed spring 40 be set to the tail portion of the screw rod 50 of fixed spring with only can one-way movement
Between pressure release plectane 30.
Wherein, bottom portion of groove is equipped with through-hole, the quantity of kidney slot is 6.The threaded hole of bottom portion of groove is 3.Groove
The interior outside at top is equipped with step, the step height of both sides is identical, only can the pressure release plectane 30 of one-way movement be set to inside
On step, step also is provided at the top of the circular hole among piston 10, step is higher than the step of groove both sides.
SF6 high-voltage circuitbreaker air cylinder volumes constantly reduce in breaker interrupting process.SF6 high-voltage circuitbreaker air cylinders
Sometimes in closed state in breaker interrupting process, sometimes in opening state.
Step on piston 10 be used to control can two-way free movement plectane 20 and only can one-way movement pressure release plectane
30 movement position and direction.
Can two-way free movement plectane 20 bidirectional-movement, the extreme position of bidirectional-movement is by the step on piston 10
With fixation can two-way free movement plectane screw rod 60 realize, you can the plectane 20 of two-way free movement is in the recessed of piston 10
It moves up and down in slot.
Only can the movement position of pressure release plectane 30 of one-way movement acted on by SF6 gas pressure differences inside and outside air cylinder, pressure
Area and spring force codetermine.
Two-way 20 thickness of free movement plectane is 2mm-4mm.
Two-way free movement plectane 20 is made of flatness height and on-deformable high-quality steel.
Only can one-way movement 30 thickness of pressure release plectane be 2mm-4mm.
Only can one-way movement pressure release plectane 30 it is high and on-deformable high-quality steel makes using flatness.
Compressed spring 40 is made of the spring steel wire of line footpath 2mm-4mm.The number of compressed spring 40 can as needed into
Row adjustment.
Piston 10 is made using high-strength light aluminum.
As shown in figure 4, the hyperbar control element 100 of the utility model is mounted in SF6 breaker air cylinders, when
SF6 breakers calm the anger cylinder pressure rise when, can two-way free movement plectane 20 it is dual in its own gravity and pressure difference
Moved downward under effect, outer ledge is overlapped with the step on piston 10, inside edge with only can one-way movement pressure release
Plectane 30 overlaps, and constitutes closed air chamber；When outside calm the anger cylinder pressure and air cylinder gas pressure difference only can one-way movement
Pressure release plectane 30 on caused by pressure resultant force be less than compressed spring 40 resultant force when, closed air chamber keep closing；Work as air cylinder
The outer gas pressure difference of interior gas pressure and air cylinder only can on the pressure release plectane 30 of one-way movement caused by pressure resultant force be more than
When the resultant force of compressed spring 40, only can the pressure release plectane 30 of one-way movement move downward, closed air chamber is opened, in closed air chamber
High pressure SF6 gases flow outward, achieve the purpose that pressure release.When pressure pressure release to a certain extent, i.e., ought calm the anger cylinder pressure
With gas pressure difference outside air cylinder only can on the pressure release plectane 30 of one-way movement caused by pressure resultant force be less than compressed spring 40
Resultant force when, closed air chamber restores to close again.
Embodiment 2
In the present embodiment, bottom portion of groove is equipped with through-hole, the quantity of kidney slot is 3.
Other are same as Example 1.
Claims (9)
1. a kind of hyperbar control element, which is characterized in that including piston (10), piston (10) is equipped with annular groove, groove
Bottom be equipped with through-hole, threaded hole and the kidney slot for the circulation of SF6 gases, be equipped in groove can two-way free movement plectane
(20), can the plectane (20) of two-way free movement be equipped with and the lead to the hole site of bottom portion of groove corresponding through-hole one by one, groove
Top be equipped with step, step be equipped with only can one-way movement pressure release plectane (30), only can one-way movement pressure release plectane
(30) top is equipped with the screw rod (50) of fixed spring, and the head of the screw rod (50) of fixed spring sequentially passes through compressed spring
(40), only can one-way movement pressure release plectane (30), can the plectane (20) of two-way free movement be fixedly connected with threaded hole, piston
(10) centre is equipped with the circular hole for being connect with SF6 high-voltage circuitbreaker air cylinders.
2. a kind of hyperbar control element as described in claim 1, which is characterized in that the bottom portion of groove be equipped with through-hole,
The quantity of threaded hole and kidney slot is at least 3.
3. a kind of hyperbar control element as claimed in claim 1 or 2, which is characterized in that the through-hole of the bottom portion of groove
It is set to the outer ring of threaded hole.
4. a kind of hyperbar control element as claimed in claim 3, which is characterized in that it is described can two-way free movement circle
The outer ledge of plate (20) is close to groove inner wall, can the centre of plectane (20) of two-way free movement set there are one macropore, groove
The threaded hole of bottom be set to macropore in, can two-way free movement plectane (20) internal diameter be less than only can one-way movement pressure release
The maximum outside diameter of plectane (30).
5. a kind of hyperbar control element as claimed in claim 3, which is characterized in that it is described can two-way free movement circle
Between plate (20) and bottom portion of groove one by one corresponding through-hole by fixation can two-way free movement plectane screw rod (60) even
It connects.
6. a kind of hyperbar control element as described in claim 1, which is characterized in that the compressed spring (40) is set to solid
Determine the screw rod (50) of spring tail portion and only can be between the pressure release plectane (30) of one-way movement.
7. a kind of hyperbar control element as described in claim 1, which is characterized in that the two-way free movement plectane
(20) thickness be 2mm-4mm, only can one-way movement pressure release plectane (30) thickness be 2mm-4mm.
8. a kind of hyperbar control element as described in claim 1, which is characterized in that the compressed spring (40) uses line
The spring steel wire of diameter 2mm-4mm makes.
9. a kind of hyperbar control element as described in claim 1, which is characterized in that the two-way free movement plectane
(20) and only can the pressure release plectane (30) of one-way movement be all made of that flatness is high and on-deformable high-quality steel makes, piston (10)
Made using high-strength light aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721876223.XU CN207938516U (en) | 2017-12-28 | 2017-12-28 | A kind of hyperbar control element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721876223.XU CN207938516U (en) | 2017-12-28 | 2017-12-28 | A kind of hyperbar control element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207938516U true CN207938516U (en) | 2018-10-02 |
Family
ID=63647781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721876223.XU Active CN207938516U (en) | 2017-12-28 | 2017-12-28 | A kind of hyperbar control element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207938516U (en) |
-
2017
- 2017-12-28 CN CN201721876223.XU patent/CN207938516U/en active Active
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