CN209298000U - For controlling the device and breaker of arc-chutes air pressure - Google Patents

Abstract

The utility model discloses a kind of for controlling the device and breaker of arc-chutes air pressure, it is related to high-voltage switch gear manufacture and design field, device for controlling arc-chutes air pressure includes: the pedestal with channel, and the channel is connected to the top and bottom of the pedestal；Decompression valve block on the pedestal is set, and the decompression valve block blocks the part in the channel of the pedestal；Return-air valve block in the channel of the pedestal is set；Elastic component between the return-air valve block and the pedestal is set, and under the action of the elastic component, the return-air valve block, which is able to carry out, to be slided so that the remainder in the channel, which has, closes or open two states.The application can speed up cut-off initial stage separating brake during arc extinguishing gas pressure inside foundation.

Description

For controlling the device and breaker of arc-chutes air pressure

Technical field

The utility model relates to high-voltage switch gear manufacture and design fields, in particular to a kind of for controlling arc-chutes gas The device and breaker of pressure.

Background technique

In high-voltage switch gear field, breaker is important one of equipment, and arc-chutes are portions most crucial in breaker Part.In general, after breaker closing, that is, the original state of breaker open operation, Fig. 1 are vertical in the prior art arrange And the initial position schematic diagram of return-air valve block after the arc-chutes combined floodgate of lower end is arranged in plenum chamber/expanding chamber, as shown in Figure 1, by In the gravity of return-air valve block, the return-air valve block and decompression valve block of arc-chutes pressure reducing valve are fittings.Fig. 2 is in the prior art The initial position schematic diagram of return-air valve block after horizontally disposed arc-chutes close a floodgate, Fig. 3 are to arrange and calm the anger vertically in the prior art The initial position schematic diagram of return-air valve block after the arc-chutes that upper end is arranged in room/expanding chamber close a floodgate, as shown in Figures 2 and 3, for The arc-chutes of upper end, the return-air valve block of arc-chutes pressure reducing valve is arranged in horizontally disposed arc-chutes or vertical arrangement and plenum chamber It is separation with decompression valve block, there are a gap, breaker is internal when building pressure during the separating brake at the initial stage of cut-offfing, and calms the anger The indoor portion gas of room/expansion can be revealed by the gap between return-air valve block and decompression valve block, such as the arrow in Fig. 2 and Fig. 3 It is shown, therefore this can hinder plenum chamber/expansion gas pressure inside establishment process, be unfavorable for subsequent blowing-out electric arc, influence to break Road device break performance.

Utility model content

In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide for the utility model embodiment It is a kind of for controlling the device and breaker of arc-chutes air pressure, can speed up arc extinguishing indoor gas during cut-offfing initial stage separating brake The foundation of pressure.

The specific technical solution of the utility model embodiment is:

It is a kind of for controlling the device of arc-chutes air pressure, comprising:

Pedestal with channel, the channel are connected to the top and bottom of the pedestal；Subtracting on the pedestal is set Pressure valve piece, the decompression valve block block the part in the channel of the pedestal；The described logical of the pedestal is set Return-air valve block in road；Elastic component between the return-air valve block and the pedestal is set, under the action of the elastic component, The return-air valve block, which is able to carry out, to be slided so that the remainder in the channel, which has, closes or open two states.

Preferably, described for controlling the device of arc-chutes air pressure further include: it is screwed into the guide pin of the pedestal, it is described to subtract Pressure valve on piece offers through-hole, and relief spring is arranged on the guide pin, and the guide pin is fed through the decompression valve block Through-hole, one end of the relief spring resist the decompression valve block, and the other end of the relief spring resists the guide pin Head.

Preferably, when the remainder in the channel is in closed state, the return-air valve block is in the elastic component Effect is lower to fit with the decompression valve block.

Preferably, when the remainder in the channel is in the open state, the elastic component be in compressive state so that The return-air valve block is mutually separated with the decompression valve block.

Preferably, the elastic component is spring leaf, and one end of the spring leaf is fixed on the pedestal, the spring leaf The other end resist the return-air valve block.

Preferably, one end of the spring leaf is fixed on the pedestal by connector, and the connector passes through screw thread The mode of fastening or pivot pin fastening or welding or bonding is fixed on one end of the spring leaf on the pedestal.

Preferably, the elastic component is spring leaf, and one end of the spring leaf is fixed on the return-air valve on piece, the bullet The other end of reed resists the pedestal.

Preferably, the elastic component is multiple, and the axis around the return-air valve block is in circumferentially distributed.

Preferably, the channel is used to be connected with arc-chutes in the return-air valve block towards one end of the elastic component.

A kind of breaker, the breaker include: arc-chutes；As described in any of the above-described for controlling arc-chutes air pressure Device, the channel are connected in one end of return-air valve block towards the elastic component with arc-chutes.

The technical solution of the utility model have it is following significant the utility model has the advantages that

For elastic component between pedestal and return-air valve block, return-air valve block is certain by elastic component in the utility model embodiment Elastic force effect, the initial stage that return-air valve block is cut-off in breaker is close to decompression valve block, so that the remainder in channel In closed state, i.e., entire channel is in closed state, in this way, facilitating initial rank in plenum chamber/expanding chamber of arc-chutes The quick foundation of section air pressure, and then the air-blowing of higher intensity is provided in interrupting process, be conducive to the extinguishing of arc current.Disconnected When road device closes, since the elastic force of elastic component is limited, when the pressure of return-air valve block air inlet side is greater than the elastic force of elastic component, elasticity Part is compressed, and therefore, is mutually separated between return-air valve block and decompression valve block, at this point, the remainder in channel is in the open state, from And guarantee the arc-chutes of breaker when closing operation for the unobstructed of the channel of return-air.

Referring to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies practical Novel principle can be in a manner of adopted.It should be understood that the embodiments of the present invention in range not thus by Limitation.In the range of the spirit and terms of appended claims, the embodiments of the present invention includes many changes, modifications With it is equivalent.The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.

Detailed description of the invention

Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model Range.In addition, shape and proportional sizes of each component in figure etc. are only schematically, to be used to help the reason to the utility model Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is practical new at this Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.

Fig. 1 is return-air valve after the arc-chutes that lower end is arranged in arrangement and plenum chamber/expanding chamber vertically in the prior art close a floodgate The initial position schematic diagram of piece；

The initial position schematic diagram of return-air valve block after Fig. 2 closes a floodgate for horizontally disposed arc-chutes in the prior art；

Fig. 3 is return-air valve after the arc-chutes that upper end is arranged in arrangement and plenum chamber/expanding chamber vertically in the prior art close a floodgate The initial position schematic diagram of piece；

Fig. 4 is in the utility model embodiment for controlling the structural schematic diagram of the device of arc-chutes air pressure；

Fig. 5 is elastic component schematic diagram under a kind of mounting means in the utility model embodiment；

Fig. 6 is in the utility model embodiment for controlling the sectional view of the device of arc-chutes air pressure；

Fig. 7 is the arc extinguishing for applying to arrangement and plenum chamber/expanding chamber vertically in the utility model embodiment and upper end being arranged in Assembling schematic diagram when room.

The appended drawing reference of the figures above:

1, pedestal；11, channel；2, relief spring；3, return-air valve block；4, valve block is depressurized；5, guide pin；6, elastic component；7, Connector；8, expanding chamber；9, plenum chamber；10, for controlling the device of arc-chutes air pressure.

Specific embodiment

In conjunction with the description of attached drawing and specific embodiment of the present invention, the utility model can be clearly understood Details.But specific embodiment of the present utility model described herein, it is only used for explaining the purpose of this utility model, without It can be understood as being limitations of the present invention in any way.Under the introduction of the utility model, technical staff is contemplated that Any possible deformation based on the utility model, these are regarded as belonging to the scope of the utility model.It needs to illustrate It is that when element is referred to as " being set to " another element, it can directly on the other element or there may also be placed in the middle Element.When an element is considered as " connection " another element, it can be directly to another element or can Centering elements can be existed simultaneously.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or Electrical connection, the connection being also possible to inside two elements can be directly connected, can also indirectly connected through an intermediary, For the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.Made herein Term " vertical ", " horizontal ", "upper", "lower", "left", "right" and similar statement simply to illustrate that mesh , it is not meant to be the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more Any and all combinations of relevant listed item.

It establishes in order to accelerate to cut-off arc extinguishing gas pressure inside during initial stage separating brake, mentions in the embodiment of the present application Go out a kind of for controlling the device of arc-chutes air pressure, Fig. 4 is in the utility model embodiment for controlling arc-chutes air pressure The structural schematic diagram of device, Fig. 6 are such as to scheme in the utility model embodiment for controlling the sectional view of the device of arc-chutes air pressure Shown in 4 and Fig. 6, which may include: the pedestal 1 with channel 11, and channel 11 is connected to base The top and bottom of seat 1；Decompression valve block 4 on pedestal 1 is set, and decompression valve block 4 hides the part in the channel 11 of pedestal 1 Gear；Return-air valve block 3 in 1 channel 11 of pedestal is set；Elastic component 6 between return-air valve block 3 and pedestal 1 is set, in elasticity Under the action of part 6, return-air valve block 3, which is able to carry out, to be slided so that the remainder in channel 11, which has, closes or open two states.

Elastic component 6 is between pedestal 1 and return-air valve block 3 in the utility model embodiment, and return-air valve block 3 is by elastic component 6 certain elastic force effects, return-air valve block 3 are close to decompression valve block 4 in the initial stage that breaker is cut-off, so that channel 11 Remainder is in closed state, i.e., entire channel 11 is in closed state, in this way, the plenum chamber 9/ for facilitating arc-chutes expands The quick foundation of initial stage air pressure in room 8, and then the air-blowing of higher intensity is provided in interrupting process, be conducive to arc current Extinguishing.When breaker closes, since the elastic force of elastic component 6 is limited, when the pressure of 3 air inlet side of return-air valve block is greater than elastic component When 6 elastic force, elastic component 6 is compressed, and therefore, is mutually separated between return-air valve block 3 and decompression valve block 4, at this point, the residue in channel 11 It is partially in open state, to guarantee the arc-chutes of breaker when closing operation for the unobstructed of the channel of return-air 11.

In order to be better understood by the device for being used to control arc-chutes air pressure in the application, it will be done into one below Walk explanation and illustration.As shown in figure 4, the device for controlling arc-chutes air pressure includes: pedestal 1, decompression valve block 4, return-air valve block 3, elastic component 6.Wherein, pedestal 1 substantially can be annular in shape, and middle part is for being threaded through the component of breaker.Pedestal 1 is along it Axis direction has the channel 11 for return-air, which is connected to the top and bottom of pedestal 1.The channel 11 is in return-air valve block 3 are used to be connected with arc-chutes towards one end of elastic component 6.

As shown in fig. 6, decompression valve block 4 is arranged on pedestal 1, decompression valve block 4 is annular in shape, is used for the logical of pedestal 1 It is blocked the part in road 11.In a kind of feasible embodiment, the device for controlling arc-chutes air pressure can also include: It is screwed into the guide pin 5 of 1 upper end of pedestal, depressurizes and offers through-hole on valve block 4, relief spring 2, guide pin 5 are arranged on guide pin 5 It is fed through the through-hole of decompression valve block 4, one end of relief spring 2 resists decompression valve block 4, and the other end of relief spring 2 resists guiding The head of pin 5.Under the action of relief spring 2, decompression valve block 4 resists the upper end of pedestal 1, and by the portion in the channel of pedestal 1 11 Divide and is blocked.

As shown in Figure 4 and Figure 6, return-air valve block 3 is arranged in the channel 11 of pedestal 1, and return-air valve block 3 can also be in annulus Shape is used to that the remainder in channel 11 to be closed or be opened.Elastic component 6 is arranged between return-air valve block 3 and pedestal 1, Under the action of elastic component 6, return-air valve block 3 can be slided along the axis direction of pedestal 1.

When the remainder in channel 11 is in closed state, return-air valve block 3 under the action of elastic component 6 with decompression valve block 4 fit, so that the channel 11 of pedestal 1 is closed.Facilitated in 9/ expanding chamber 8 of plenum chamber of arc-chutes by above structure The quick foundation of initial stage air pressure, and then the air-blowing of higher intensity is provided in breaker interrupting process, be conducive to electric arc electricity The extinguishing of stream.

When the remainder in channel 11 is in the open state, elastic component 6 is in compressive state so that return-air valve block 3 is downward Sliding is separated with decompression 4 phase of valve block in turn, in this way, the channel 11 of pedestal 1 is just in the open state, the top and bottom of pedestal 1 Connection guarantees return-air of the arc-chutes of breaker when closing operation by the channel 11.

In a kind of feasible embodiment, elastic component 6 can be spring leaf, and elastic component 6 is multiple, wraparound air valve plate 3 axis is in circumferentially distributed.One end of spring leaf is fixed on pedestal 1, and the other end of spring leaf resists return-air valve block 3.For example, Fig. 5 is the schematic diagram under a kind of mounting means of elastic component 6 in the utility model embodiment, as shown in figure 5, one end of spring leaf is logical It crosses connector 7 to be fixed on pedestal 1, connector 7 makes bullet by way of screw threads for fastening or pivot pin fastening or welding or bonding One end of reed is fixed on pedestal 1.In no external force, multiple spring leafs can protected return-air valve block 3 by elastic force Hold with decompression valve block 4 it is parallel in the state of upward sliding so that return-air valve block 3 be tightly attached to decompression valve block 4 on.Above-mentioned mistake Elastic force in journey is that spring leaf compresses the stroke of Δ d and the elastic force that generates.

In another feasible embodiment, elastic component 6 can be spring leaf, elastic component 6 be it is multiple, around return-air valve The axis of piece 3 is in circumferentially distributed.One end of spring leaf is fixed on return-air valve block 3, and the other end of spring leaf resists pedestal 1.Bullet One end of reed can be fixed on return-air valve block 3 by connector 7, and connector 7 passes through screw threads for fastening or pivot pin fastening or weldering The mode for connecing or being bonded is fixed on one end of spring leaf on return-air valve block 3.

It also proposed a kind of breaker in this application, breaker may include: arc-chutes；As any of the above-described for controlling The device 10 of arc-chutes air pressure, channel 11 are connected in one end of return-air valve block 3 towards elastic component 6 with arc-chutes.Fig. 7 is that this is practical Apply to the assembling schematic diagram when arc-chutes of upper end are arranged in arrangement and 9/ expanding chamber 8 of plenum chamber vertically in new embodiment, As shown in fig. 7, in the present embodiment, arc-chutes may include plenum chamber 9 and/or expanding chamber 8.When breaker carries out separating brake behaviour When making, at the initial stage of cut-offfing, electric arc burns between breaker fracture, and gas is heated swollen in the expanding chamber 8 and plenum chamber 9 of arc-chutes It is swollen.Since the arcing time is short, heated gas pressure is still smaller in the expanding chamber 8 and plenum chamber 9 of arc-chutes, can not push Depressurize valve block 4.Return-air valve block 3 is close under the action of elastic component 6 with decompression valve block 4 at this time, and the channel 11 of pedestal 1 is in closing The gas of state, expansion can not be revealed by channel 11, so that the air pressure in expanding chamber 8 can establish rapidly, be conducive to electric arc Cut-off.

When breaker carries out closing operation, pressure and elastic component 6 of the valve block 4 by 1 upper outer gas of pedestal are depressurized The collective effect of elastic force, two force directions are opposite.Under original state, the elastic force of elastic component 6 be greater than the external gas pressure with Therefore, between return-air valve block 3 and decompression valve block 4 resultant force of 3 gravity of return-air valve block is still to be close to state, at the channel 11 of pedestal 1 In closed state.With closing operation, the gap of pressure and the external gas pressure in 8/ plenum chamber 9 of expanding chamber becomes larger, due to The elastic force of elastic component 6 is set in a certain range, when the elastic force of elastic component 6 is less than the external gas pressure and 3 weight of return-air valve block When the resultant force of power, 3 slide downward of return-air valve block, and then separated with decompression valve block 4, the channel 11 of pedestal 1 is in opening state at this time State.Extraneous gas can be entered in arc-chutes by channel 11, supplemented the gas inside 8/ plenum chamber 9 of expanding chamber, made arc-chutes Inner and outer air pressure is close, so that do not influence breaker closes performance.

Above-mentioned each embodiment in this specification is described in a progressive manner, identical between each embodiment Similar portion is cross-referenced, and what each embodiment stressed is and other embodiments difference.It discloses All articles and reference, including patent application and publication are hereby incorporated by by quoting for various purposes.Description combination Term " substantially by ... constitute " should include identified element, ingredient, component or step and essentially without influence should Other elements, ingredient, component or the step of combined basic novel feature.It is described here using term "comprising" or " comprising " Element, ingredient, component or step combination it is also contemplated that the implementation being made of substantially these elements, ingredient, component or step Mode.Here by using term " can with ", it is intended to which the described any attribute for illustrating that " can with " includes all is optional.It is more A element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Alternatively, single collection Multiple element, ingredient, component or the step of separation can be divided at element, ingredient, component or step.For describe element, The open "a" or "an" of ingredient, component or step is not said to exclude other elements, ingredient, component or step.

The foregoing is merely several embodiments of the utility model, although embodiment disclosed by the utility model is such as On, but the content is only to facilitate the embodiment for understanding the utility model and using, it is practical new to be not intended to limit this Type.Any those skilled in the art of the present invention are not departing from spirit and scope disclosed by the utility model Under the premise of, any modification and variation, but the patent of the utility model can be made in the formal and details of embodiment Protection scope must be still subject to the scope defined in the appended claims.

Claims (10)

1. a kind of for controlling the device of arc-chutes air pressure characterized by comprising

Pedestal with channel, the channel are connected to the top and bottom of the pedestal；Pressure reducing valve on the pedestal is set Piece, the decompression valve block block the part in the channel of the pedestal；It is arranged in the channel of the pedestal Return-air valve block；Elastic component between the return-air valve block and the pedestal is set, it is described under the action of the elastic component Return-air valve block, which is able to carry out, to be slided so that the remainder in the channel, which has, closes or open two states.

2. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that described for controlling arc extinguishing The device of room air pressure further include: be screwed into the guide pin of the pedestal, the pressure reducing valve on piece offers through-hole, on the guide pin It is arranged with relief spring, the guide pin is fed through the through-hole of the decompression valve block, and one end of the relief spring resists described Valve block is depressurized, the other end of the relief spring resists the head of the guide pin.

3. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that when the residue in the channel When being partially in closed state, the return-air valve block fits under the action of the elastic component with the decompression valve block.

4. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that when the residue in the channel When being partially in open state, the elastic component is in compressive state so that the return-air valve block and the decompression valve block phase point From.

5. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that the elastic component is spring Piece, one end of the spring leaf are fixed on the pedestal, and the other end of the spring leaf resists the return-air valve block.

6. according to claim 5 for controlling the device of arc-chutes air pressure, which is characterized in that one end of the spring leaf It is fixed on the pedestal by connector, the connector is by way of screw threads for fastening or pivot pin fastening or welding or bonding So that one end of the spring leaf is fixed on the pedestal.

7. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that the elastic component is spring Piece, one end of the spring leaf are fixed on the return-air valve on piece, and the other end of the spring leaf resists the pedestal.

8. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that the elastic component is more A, the axis around the return-air valve block is in circumferentially distributed.

9. according to claim 1 for controlling the device of arc-chutes air pressure, which is characterized in that the channel is at described time Air valve plate is used to be connected with arc-chutes towards one end of the elastic component.

10. a kind of breaker, which is characterized in that the breaker includes: arc-chutes；As described in any in claim 1 to 9 For controlling the device of arc-chutes air pressure, the channel is in one end towards the elastic component of the return-air valve block and arc-chutes phase Even.