CN213781920U

CN213781920U - Special instrument for online monitoring air leakage of high-voltage vacuum circuit breaker

Info

Publication number: CN213781920U
Application number: CN202023274606.4U
Authority: CN
Inventors: 薛俊文
Original assignee: Anhui Anton Electric Technology Co ltd
Current assignee: Anhui Anton Electric Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-07-23
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an on-line monitoring high-voltage vacuum circuit breaker gas leakage special instrument. Including the vacuum circuit breaker body, still include the first cavity that holds, the first sealed setting of cavity that holds, be provided with the balancing hole at the first cavity that holds, be provided with the slider that follows the first interior external air pressure difference that holds the cavity and remove at the balancing hole, slider and balancing hole sliding connection, be provided with the extension section at the first cavity that holds, the extension section extends to the first top that holds the cavity, one side towards the slider at the extension section is provided with the control button who corresponds with the slider, the slider can remove and trigger control button under the pressure effect in the first cavity that holds, still include the second and hold the cavity, it is provided with sharp cylinder to hold the cavity at the second, sharp cylinder and control button electricity are connected, it is provided with the opening to hold the cavity at the second, the first cavity that holds of sharp cylinder drive withdraws from. The utility model discloses can solve the long-term operation in-process vacuum of vacuum circuit breaker and reduce the problem that is difficult to detect.

Description

Special instrument for online monitoring air leakage of high-voltage vacuum circuit breaker

Technical Field

The utility model relates to a high-pressure vacuum circuit breaker technical field, concretely relates to on-line monitoring high-pressure vacuum circuit breaker gas leakage special instrument.

Background

The vacuum circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and closing, carrying, and opening/closing a current under an abnormal circuit condition within a predetermined time. The vacuum arc extinguish chamber is used as an important component in a vacuum circuit breaker, the vacuum degree in the vacuum arc extinguish chamber is an important technical index for ensuring the insulation performance and the arc extinguishing performance of a vacuum switch, and if the vacuum degree of the vacuum arc extinguish chamber is lower than a certain order of magnitude, the vacuum switch can not be normally switched on or switched off, so that a great safety threat is formed on the safe operation of a power grid.

With the progress of vacuum technology, the vacuum arc-extinguishing chamber can realize good vacuum sealing during manufacturing, so that a high yield is achieved, but the deterioration or failure of the vacuum sealing is difficult to avoid completely due to the bad operating conditions of the vacuum arc-extinguishing chamber in the long-term operation process, and although the accident rate is very low, the deterioration of the vacuum degree still poses a great threat to the operation reliability of the vacuum switch, and is particularly difficult to accept in a high-voltage-level power transmission and transformation system.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model discloses a special instrument of on-line monitoring high-pressure vacuum circuit breaker gas leakage can solve the long-term operation in-process vacuum of vacuum circuit breaker and reduce the problem that is difficult to detect.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the special instrument for monitoring the air leakage of the high-voltage vacuum circuit breaker on line comprises a vacuum circuit breaker body and further comprises a first accommodating cavity body used for accommodating the vacuum circuit breaker body, wherein the first accommodating cavity body is arranged in a sealing manner, a balance hole used for balancing the internal and external air pressures of the first accommodating cavity body is arranged in the first accommodating cavity body, a sliding block which follows the internal and external air pressure difference of the first accommodating cavity body to move is arranged in the balance hole, the sliding block is connected with the balance hole in a sliding manner, an extension section is arranged in the first accommodating cavity body and extends to the upper side of the first accommodating cavity body, a control button corresponding to the sliding block is arranged on one side, facing the sliding block, of the extension section, the sliding block can move under the pressure action in the first accommodating cavity body and trigger the control button, and the special instrument further comprises a second accommodating cavity body used for accommodating a plurality of first accommodating cavity bodies, the second accommodating cavity is provided with a linear cylinder, the linear cylinder is electrically connected with the control button, the second accommodating cavity is provided with an opening for the first accommodating cavity to withdraw, and the linear cylinder drives the first accommodating cavity to withdraw.

According to the preferable technical scheme, the balance hole penetrates through the top of the first accommodating cavity, the top opening of the balance hole is located on the outer top surface of the first accommodating cavity, and the bottom opening of the balance hole is located on the inner top surface of the first accommodating cavity.

According to a preferred technical scheme, the sliding block comprises a first portion, a second portion and a third portion which are all arranged to be solid, the second portion is fixedly connected below the first portion, and the third portion is fixedly connected below the second portion.

In a preferred embodiment, the outer diameter of the first portion is larger than the inner diameter of the balance hole, the outer diameter of the second portion is equal to the inner diameter of the balance hole, and the outer diameter of the third portion is smaller than the inner diameter of the balance hole.

In a preferred embodiment, the height of the extension section relative to the outer top surface of the first receiving cavity is equal to the sum of the height of the first portion and the height of the second portion.

According to the preferable technical scheme, the opening is arranged at the top of the second accommodating cavity in a penetrating mode, the width of the opening is equal to that of the first accommodating cavity, and the height of the second accommodating cavity is larger than that of the first accommodating cavity.

According to the preferable technical scheme, the second accommodating cavity is stacked with two first accommodating cavities, the cylinder body of the linear cylinder is fixedly connected with the bottom of the second accommodating cavity, and the piston rod of the linear cylinder is abutted to the bottom of the first accommodating cavity.

The utility model discloses an on-line monitoring high-pressure vacuum circuit breaker gas leakage specialized instrument has following advantage:

the utility model discloses in, control button is connected through wireless network, can transmit the signal of revealing under the collision that receives the slider to send to the terminal through the network, the monitoring personnel of being convenient for carry out on-line monitoring, keep acquireing in real time the gas leakage condition of high-pressure vacuum circuit breaker. Through slider collision control button under the pressure effect, can consider the change of the first internal gas pressure that holds of abundant utilization to improve control button's reaction rate, and then inform monitoring personnel the very first time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Figure 1 is a cross-sectional view of an embodiment of the invention;

fig. 2 is a cross-sectional view of a first receiving cavity of an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.

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.

As shown in fig. 1 and fig. 2, the special apparatus for online monitoring gas leakage of a high-voltage vacuum circuit breaker according to an embodiment of the present invention includes a vacuum circuit breaker body 9, and further includes a first receiving cavity 1 for receiving the vacuum circuit breaker body 9, the first receiving cavity 1 is hermetically disposed, the first receiving cavity 1 is provided with a balance hole 12 for balancing internal and external pressures of the first receiving cavity 1, the balance hole 12 is provided with a slider moving along with a difference between the internal and external pressures of the first receiving cavity 1, the slider is slidably connected to the balance hole 12, the first receiving cavity 1 is provided with an extension section 12, the extension section 12 extends to the upper side of the first receiving cavity 1, a control button 5 corresponding to the slider is disposed on a side of the extension section 12 facing the slider, the slider can move under the pressure in the first receiving cavity 1 and trigger the control button 5, still including being used for holding a plurality of the first second that holds cavity 1 holds cavity 2 the second holds cavity 2 and is provided with sharp cylinder 3, sharp cylinder 3 with control button 5 electricity is connected the second holds cavity 2 and is provided with and is used for the first opening 20 that holds cavity 1 and withdraw from, sharp cylinder 3 drive the first cavity 1 that holds withdraws from.

The utility model discloses in, control button 5 is connected through wireless network, can transmit the signal of revealing under the collision that receives the slider to send to the terminal through the network, the monitoring personnel of being convenient for carry out on-line monitoring, keep acquireing in real time the gas leakage condition of high-pressure vacuum circuit breaker. Collide control button 5 under the pressure effect through the slider, can consider the change of the first interior atmospheric pressure that holds of abundant utilization to improve control button 5's reaction rate, and then inform monitoring personnel the very first time.

Specifically, the balance hole 12 penetrates through the top of the first accommodating cavity 1, the top opening 20 of the balance hole 12 is located on the outer top surface of the first accommodating cavity 1, and the bottom opening 20 of the balance hole 12 is located on the inner top surface of the first accommodating cavity 1. The slider comprises a first part 41, a second part 42 and a third part 43 which are all arranged into a solid body, wherein the second part 42 is fixedly connected below the first part 41, and the third part 43 is fixedly connected below the second part 42. The outer diameter of the first portion 41 is larger than the inner diameter of the balance hole 12, the outer diameter of the second portion 42 is equal to the inner diameter of the balance hole 12, and the outer diameter of the third portion 43 is smaller than the inner diameter of the balance hole 12. The slider can compress tightly in balancing hole 12 under the effect of self gravity under normal operating condition to keep the sealed of first accommodation cavity 1.

The height of the extension 12 with respect to the external top surface of the first housing chamber 1 is equal to the sum of the height of the first portion 41 and the height of the second portion 42. The slider can be conveniently abutted against the control button 5 when moving outwards under the action of the pressure of the first accommodating cavity 1. In order to facilitate the disassembly and assembly of the whole formed by the high-voltage vacuum circuit breaker and the first accommodating cavity 1 in the second accommodating cavity, the opening 20 penetrates through the top of the second accommodating cavity 2, the width of the opening 20 is equal to that of the first accommodating cavity 1, and the height of the second accommodating cavity 2 is greater than that of the first accommodating cavity 1.

Can scrap after high-pressure vacuum circuit breaker leaks gas, need in time change, for the convenience of changing scrapped high-pressure vacuum circuit breaker, can the second holds cavity 2 and piles up be provided with two the first cavity 1 that holds, sharp cylinder 3 the cylinder body with the second holds the bottom fixed connection of cavity 2, sharp cylinder 3 the piston rod butt with the first bottom that holds cavity 1. After receiving the scrapping signal, nearby maintenance personnel can start the linear cylinder 3 to eject out the first accommodating cavity 1 by triggering the control button 5 again, and carry out integral replacement on the first accommodating cavity 1 and the high-voltage vacuum circuit breaker scrapped inside, namely, the first accommodating cavity 1 below is replaced, and then adaptive maintenance and arrangement are carried out on the circuit.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an on-line monitoring high-pressure vacuum circuit breaker gas leakage specialized instrument, includes the vacuum circuit breaker body, its characterized in that: the vacuum circuit breaker comprises a vacuum circuit breaker body and is characterized by further comprising a first accommodating cavity body for accommodating the vacuum circuit breaker body, the first accommodating cavity body is arranged in a sealed mode, a balance hole used for balancing the internal and external air pressures of the first accommodating cavity body is formed in the first accommodating cavity body, a sliding block which moves along with the internal and external air pressure difference of the first accommodating cavity body is arranged in the balance hole, the sliding block is in sliding connection with the balance hole, an extension section is arranged on the first accommodating cavity body and extends to the upper portion of the first accommodating cavity body, a control button corresponding to the sliding block is arranged on one side, facing the sliding block, of the extension section, the sliding block can move under the action of the pressure in the first accommodating cavity body and trigger the control button, the vacuum circuit breaker further comprises a second accommodating cavity body used for accommodating a plurality of first accommodating cavity bodies, and a linear air cylinder is arranged in the second accommodating cavity body, the linear cylinder is electrically connected with the control button, the second accommodating cavity is provided with an opening for the first accommodating cavity to withdraw, and the linear cylinder drives the first accommodating cavity to withdraw.

2. The special apparatus for on-line monitoring air leakage of high-voltage vacuum circuit breaker according to claim 1, characterized in that: the balance hole penetrates through the top of the first accommodating cavity, the top opening of the balance hole is located on the outer top surface of the first accommodating cavity, and the bottom opening of the balance hole is located on the inner top surface of the first accommodating cavity.

3. The special apparatus for on-line monitoring air leakage of high-voltage vacuum circuit breaker according to claim 1, characterized in that: the slider comprises a first part, a second part and a third part which are all arranged into a solid body, wherein the second part is fixedly connected below the first part, and the third part is fixedly connected below the second part.

4. The special apparatus for on-line monitoring air leakage of high-voltage vacuum circuit breaker according to claim 3, characterized in that: the outer diameter of the first portion is larger than the inner diameter of the balance hole, the outer diameter of the second portion is equal to the inner diameter of the balance hole, and the outer diameter of the third portion is smaller than the inner diameter of the balance hole.

5. The special apparatus for on-line monitoring air leakage of high-voltage vacuum circuit breaker according to claim 3, characterized in that: the height of the extension section relative to the outer top surface of the first receiving cavity is equal to the sum of the height of the first portion and the height of the second portion.

6. The special apparatus for on-line monitoring air leakage of high-voltage vacuum circuit breaker according to claim 1, characterized in that: the opening penetrates through the top of the second accommodating cavity, the width of the opening is equal to that of the first accommodating cavity, and the height of the second accommodating cavity is larger than that of the first accommodating cavity.

7. The special apparatus for on-line monitoring air leakage of high-voltage vacuum circuit breaker according to claim 1, characterized in that: the second holds the cavity and piles up to be provided with two the first cavity that holds, the cylinder body of sharp cylinder with the bottom fixed connection that the second held the cavity, the piston rod butt of sharp cylinder with the bottom that the first cavity that holds.