CN214378212U

CN214378212U - Vacuum arc-extinguishing chamber with internal cleaning function

Info

Publication number: CN214378212U
Application number: CN202120670370.1U
Authority: CN
Inventors: 周倜; 王清华
Original assignee: Hubei Dayu Hanguang Vacuum Electronics Co ltd
Current assignee: Hubei Dayu Hanguang Vacuum Electronics Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-10-08
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a vacuum interrupter with inside clean function, including the glass casing, the inboard middle part fixedly connected with of glass casing shields a section of thick bamboo, and feed liquor hole, evacuation hole and outage have been seted up in proper order to the left side from the top down of glass casing, and feed liquor hole, evacuation hole and outage department run through respectively have feed liquor pipe, vacuum tube and fluid-discharge tube, the utility model relates to a vacuum interrupter technical field. This vacuum interrupter with inside clean function, utilize the feed liquor pipe to pour into 95 degrees alcohol to glass housing's inside, wash glass housing's internal component, alcohol passes through fluid-discharge tube department and discharges, rethread feed liquor pipe weathers the processing to glass housing's inside, then pass through the inside gas of evacuation pipe extraction glass housing with external evacuating device, make glass housing's inside formation vacuum state, effectual inside to vacuum interrupter carries out insulating nature cleaning, improve equipment's life.

Description

Vacuum arc-extinguishing chamber with internal cleaning function

Technical Field

The utility model relates to a vacuum interrupter technical field specifically is a vacuum interrupter with inside clean function.

Background

The vacuum arc-extinguishing chamber is a core component of a medium-high voltage power switch, has the main functions of rapidly extinguishing arc and inhibiting current after a medium-high voltage circuit is cut off a power supply through excellent vacuum insulativity in a pipe, avoids accidents and accidents, and is widely applied to a power transmission and distribution control system of electric power.

Because the movable conducting rod of the vacuum arc-extinguishing chamber is exposed in the air and is easily influenced by the external environment and polluted by the air, the conventional vacuum arc-extinguishing chamber cannot effectively clean the interior of the vacuum arc-extinguishing chamber, so that the insulation level of the circuit breaker is reduced, and the use performance of the circuit breaker is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a vacuum interrupter with inside clean function has solved vacuum interrupter's the conducting rod that moves and exposes in the air, receives external environment's influence and the pollution of air easily, and current vacuum interrupter can not effectually clean its inside, makes the insulating level of circuit breaker reduce, influences its performance, and vacuum interrupter can not reach the problem of extinguishing electric arc fast.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a vacuum interrupter with inside clean function, includes the glass casing, the inboard middle part fixedly connected with shielding section of thick bamboo of glass casing, feed liquor hole, evacuation hole and outage have been seted up in proper order to the left side from the top down of glass casing, feed liquor hole, evacuation hole and outage department run through respectively has feed liquor pipe, vacuum tube and fluid-discharge tube, feed liquor pipe, vacuum tube and fluid-discharge tube are the equal sealing plug seat of junction in feed liquor hole, evacuation hole and the outage outside respectively, the left end of feed liquor pipe, vacuum tube and fluid-discharge tube all seals the lid and is equipped with sealed lid, the middle part fixedly connected with check valve of vacuum tube.

Preferably, the glass shell is internally provided with alcohol, and the alcohol degree is not less than 95 degrees.

Preferably, the upper part of the glass shell is fixedly connected with a static cover plate, a static conductive rod penetrates through the middle part of the static cover plate, and the bottom end of the static conductive rod is fixedly connected with a static contact.

Preferably, the lower part of the glass shell is fixedly connected with a movable cover plate, a movable conducting rod penetrates through the middle part of the movable cover plate, and the upper end of the movable conducting rod is fixedly connected with a movable contact.

Preferably, the middle part of the movable conducting rod is sleeved with a corrugated pipe, the upper part of the corrugated pipe is fixedly connected with a corrugated pipe shielding cover, and the bottom of the corrugated pipe shielding cover is fixedly connected with a guide cover.

Preferably, the bottom of the static contact and the upper part of the moving contact are both fixedly connected with arc extinguishing members, and the arc extinguishing members connected with the static contact and the arc extinguishing members connected with the moving contact are correspondingly pressed and connected.

Advantageous effects

The utility model provides a vacuum interrupter with inside clean function. Compared with the prior art, the method has the following beneficial effects:

(1) the vacuum arc extinguish chamber with the internal cleaning function is characterized in that a liquid inlet hole, a vacuumizing hole and a liquid discharge hole are sequentially formed in the left side of a glass shell from top to bottom, a liquid inlet pipe, a vacuumizing pipe and a liquid discharge pipe penetrate through the liquid inlet hole, the vacuumizing pipe and the liquid discharge hole respectively, the liquid inlet pipe, the vacuumizing pipe and the liquid discharge pipe respectively form the liquid inlet hole, a sealing plug seat is hermetically connected at the joint outside the vacuumizing hole and the liquid discharge hole, sealing covers are arranged at the left ends of the liquid inlet pipe, the vacuumizing pipe and the liquid discharge pipe respectively, a check valve is fixedly connected to the middle of the vacuumizing pipe, 95-degree alcohol is filled into the glass shell by the liquid inlet pipe, internal elements of the glass shell are washed, the alcohol is discharged from the liquid discharge pipe and is dried inside the glass shell by the blowing pipe, and then an external vacuumizing device extracts gas inside the glass shell through the liquid inlet pipe, the vacuum state is formed in the glass shell, the insulating property cleaning treatment is effectively carried out on the interior of the vacuum arc extinguish chamber, and the service life of the equipment is prolonged.

(2) The vacuum arc extinguish chamber with the internal cleaning function has the advantages that the arc extinguishing parts are fixedly connected to the bottom of the static contact and the upper portion of the moving contact, the arc extinguishing parts connected with the static contact and the arc extinguishing parts connected with the moving contact are in corresponding compression joint, arc lines of electric arcs can be shortened by utilizing the small-area contact of the arc extinguishing parts connected with the static contact and the moving contact, the electric arcs are quickly extinguished by utilizing the shielding cylinder and the corrugated pipe shielding cover, the switching-off is completed, the effect of extinguishing the electric arcs is achieved, and the rapidity of the switching-off function of the vacuum arc extinguish chamber is enhanced.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

fig. 3 is a structural plan view of the moving contact of the present invention.

In the figure: 1. a glass housing; 2. a shielding cylinder; 3. a liquid inlet hole; 4. vacuumizing holes; 5. a drain hole; 6. a liquid inlet pipe; 7. vacuumizing a tube; 8. a liquid discharge pipe; 9. a sealing plug seat; 10. a sealing cover; 11. a one-way valve; 12. a static cover plate; 13. a static conductive rod; 14. static contact; 15. a movable cover plate; 16. a movable conductive rod; 17. a moving contact; 18. a bellows; 19. a bellows shield; 20. a guide cover; 21. an arc extinguishing member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a vacuum arc-extinguishing chamber with an internal cleaning function comprises a glass shell 1, a shielding cylinder 2 is fixedly connected to the middle of the inner side of the glass shell 1, a static cover plate 12 is fixedly connected to the upper portion of the glass shell 1, a static conducting rod 13 penetrates through the middle of the static cover plate 12, a static contact 14 is fixedly connected to the bottom end of the static conducting rod 13, a movable cover plate 15 is fixedly connected to the lower portion of the glass shell 1, a movable conducting rod 16 penetrates through the middle of the movable cover plate 15, a movable contact 17 is fixedly connected to the upper end of the movable conducting rod 16, a corrugated pipe 18 is sleeved in the middle of the movable conducting rod 16, a corrugated pipe shielding cover 19 is fixedly connected to the upper portion of the corrugated pipe 18, a guide cover 20 is fixedly connected to the bottom of the corrugated pipe shielding cover 19, arc-extinguishing members 21 are fixedly connected to the bottom of the static contact 14 and the upper portion of the movable contact 17, and the arc-extinguishing members 21 connected with the static contact 14 are correspondingly pressed and connected with the arc-extinguishing members 21 connected with the movable contact 17, the arc-extinguishing member 21 connected with the static contact 14 and the arc-extinguishing member 21 connected with the moving contact 17 are in small-area contact, so that the arc line of an electric arc can be shortened, the electric arc is rapidly extinguished through the shielding cylinder 2 and the corrugated pipe shielding cover 19, the breaking is completed, the effect of extinguishing the electric arc is achieved, the rapidity of the breaking function of the vacuum arc-extinguishing chamber is enhanced, a liquid inlet hole 3, a vacuum-pumping hole 4 and a liquid discharge hole 5 are sequentially formed in the left side of the glass shell 1 from top to bottom, a liquid inlet pipe 6, a vacuum-pumping pipe 7 and a liquid discharge pipe 8 are respectively penetrated at the liquid inlet hole 3, the vacuum-pumping hole 4 and the liquid discharge hole 5, sealing plug seats 9 are respectively and hermetically connected at the joints outside the liquid inlet hole 3, the vacuum-pumping hole 4 and the liquid discharge hole 5 of the liquid inlet pipe 6, the vacuum-pumping pipe 7 and the liquid discharge pipe 8, sealing covers 10 are respectively arranged at the left ends of the liquid inlet pipe 6, the vacuum-pumping pipe 7 and the liquid discharge pipe 8, a one-way valve 11 is fixedly connected at the middle part of the vacuum-pumping pipe 7, glass housing 1's inside is equipped with alcohol, and the alcohol number of degrees is not less than 95 degrees, utilize feed liquor pipe 6 to pour into 95 degrees alcohol to glass housing 1's inside, wash glass housing 1's internal component, alcohol passes through 8 departments of fluid-discharge tube and discharges, rethread feed liquor pipe 6 weathers the processing to glass housing 1's inside, then pass through the gas of vacuum tube 7 extraction glass housing 1 inside with external evacuating device, make glass housing 1's inside formation vacuum state, effectual inside to vacuum interrupter carries out insulating nature cleaning, improve equipment's life.

And those not described in detail in this specification are well within the skill of those in the art.

When equipment is cleaned, the static contact 14 is separated from the moving contact 17, the sealing cover 10 connected with the liquid inlet pipe 6 and the liquid discharge pipe 8 is opened, 95-degree alcohol which is larger than 90-degree alcohol is poured into the glass shell 1 through the liquid inlet pipe 6 to be insulating, internal elements of the glass shell 1 are washed, the alcohol is discharged through the liquid discharge pipe 8, after the equipment is washed, air is blown into the glass shell 1 through the liquid inlet pipe 6, after the equipment is completely dried, the liquid inlet pipe 6 and the liquid discharge pipe 8 are sealed and blocked through the sealing cover 10, the sealing cover 10 connected with the vacuumizing pipe 7 is opened, external vacuumizing devices are used for extracting gas inside the glass shell 1 through the vacuumizing pipe 7, the inside of the glass shell 1 is in a vacuum state, and the one-way valve 11 avoids vacuum leakage.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vacuum interrupter with inside clean function, includes glass housing (1), its characterized in that: the middle part of the inner side of the glass shell (1) is fixedly connected with a shielding cylinder (2), the left side of the glass shell (1) is provided with a liquid inlet hole (3), a vacuum pumping hole (4) and a liquid discharge hole (5) from top to bottom in sequence, a liquid inlet pipe (6), a vacuum-pumping pipe (7) and a liquid discharge pipe (8) are respectively penetrated through the liquid inlet hole (3), the vacuum-pumping hole (4) and the liquid discharge hole (5), the connection parts of the liquid inlet pipe (6), the vacuum pipe (7) and the liquid discharge pipe (8) at the outer sides of the liquid inlet hole (3), the vacuum hole (4) and the liquid discharge hole (5) are respectively connected with a sealing plug seat (9) in a sealing way, the left ends of the liquid inlet pipe (6), the vacuum pipe (7) and the liquid discharge pipe (8) are all provided with sealing covers (10) in a sealing way, the right end of the vacuum tube (7) penetrates through the right side of the shielding cylinder (2), the middle part of the vacuumizing pipe (7) is fixedly connected with a one-way valve (11).

2. Vacuum interrupter with internal cleaning according to claim 1, characterized in that: alcohol is arranged in the glass shell (1), and the alcohol degree is not less than 95 degrees.

3. Vacuum interrupter with internal cleaning according to claim 1, characterized in that: the glass shell is characterized in that a static cover plate (12) is fixedly connected to the upper portion of the glass shell (1), a static conductive rod (13) penetrates through the middle of the static cover plate (12), and a static contact (14) is fixedly connected to the bottom end of the static conductive rod (13).

4. Vacuum interrupter with internal cleaning according to claim 3, characterized in that: the glass shell is characterized in that a movable cover plate (15) is fixedly connected to the lower portion of the glass shell (1), a movable conducting rod (16) penetrates through the middle of the movable cover plate (15), and a movable contact (17) is fixedly connected to the upper end of the movable conducting rod (16).

5. Vacuum interrupter with internal cleaning according to claim 4, characterized in that: the middle of the movable conducting rod (16) is sleeved with a corrugated pipe (18), the upper portion of the corrugated pipe (18) is fixedly connected with a corrugated pipe shielding cover (19), and the bottom of the corrugated pipe shielding cover (19) is fixedly connected with a guide cover (20).

6. Vacuum interrupter with internal cleaning according to claim 4, characterized in that: the bottom of the static contact (14) and the upper part of the movable contact (17) are both fixedly connected with arc extinguishing members (21), and the arc extinguishing members (21) connected with the static contact (14) and the arc extinguishing members (21) connected with the movable contact (17) are correspondingly pressed and connected.